1a59d1b8e05ea drivers/firewire/ohci.c (Thomas Gleixner 2019-05-27 08:55:05 +0200 1) // SPDX-License-Identifier: GPL-2.0-or-later
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 2) /*
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 3) * Driver for OHCI 1394 controllers
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 4) *
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 5) * Copyright (C) 2003-2006 Kristian Hoegsberg <krh@bitplanet.net>
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 6) */
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 7)
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 8) #include <linux/bitops.h>
65b2742ac002f drivers/firewire/ohci.c (Stefan Richter 2010-06-12 20:26:51 +0200 9) #include <linux/bug.h>
e524f616f5972 drivers/firewire/fw-ohci.c (Stefan Richter 2007-08-20 21:58:30 +0200 10) #include <linux/compiler.h>
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 11) #include <linux/delay.h>
e8ca97021c8eb drivers/firewire/fw-ohci.c (Stefan Richter 2009-06-04 21:09:38 +0200 12) #include <linux/device.h>
cf3e72fd85092 drivers/firewire/fw-ohci.c (Andrew Morton 2006-12-27 14:36:37 -0800 13) #include <linux/dma-mapping.h>
77c9a5daa9c4d drivers/firewire/fw-ohci.c (Stefan Richter 2009-06-05 16:26:18 +0200 14) #include <linux/firewire.h>
e8ca97021c8eb drivers/firewire/fw-ohci.c (Stefan Richter 2009-06-04 21:09:38 +0200 15) #include <linux/firewire-constants.h>
a7fb60db711fc drivers/firewire/fw-ohci.c (Stefan Richter 2007-08-20 21:41:22 +0200 16) #include <linux/init.h>
a7fb60db711fc drivers/firewire/fw-ohci.c (Stefan Richter 2007-08-20 21:41:22 +0200 17) #include <linux/interrupt.h>
e8ca97021c8eb drivers/firewire/fw-ohci.c (Stefan Richter 2009-06-04 21:09:38 +0200 18) #include <linux/io.h>
a7fb60db711fc drivers/firewire/fw-ohci.c (Stefan Richter 2007-08-20 21:41:22 +0200 19) #include <linux/kernel.h>
e8ca97021c8eb drivers/firewire/fw-ohci.c (Stefan Richter 2009-06-04 21:09:38 +0200 20) #include <linux/list.h>
faa2fb4e67775 drivers/firewire/fw-ohci.c (Al Viro 2007-05-15 20:36:10 +0100 21) #include <linux/mm.h>
a7fb60db711fc drivers/firewire/fw-ohci.c (Stefan Richter 2007-08-20 21:41:22 +0200 22) #include <linux/module.h>
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 23) #include <linux/moduleparam.h>
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 24) #include <linux/mutex.h>
a7fb60db711fc drivers/firewire/fw-ohci.c (Stefan Richter 2007-08-20 21:41:22 +0200 25) #include <linux/pci.h>
fc383796a8cc5 drivers/firewire/ohci.c (Stefan Richter 2009-08-28 13:25:15 +0200 26) #include <linux/pci_ids.h>
5a0e3ad6af866 drivers/firewire/ohci.c (Tejun Heo 2010-03-24 17:04:11 +0900 27) #include <linux/slab.h>
c26f02340e89c drivers/firewire/fw-ohci.c (Stefan Richter 2007-08-20 21:40:30 +0200 28) #include <linux/spinlock.h>
e8ca97021c8eb drivers/firewire/fw-ohci.c (Stefan Richter 2009-06-04 21:09:38 +0200 29) #include <linux/string.h>
e78483c5aeb0d drivers/firewire/ohci.c (Stefan Richter 2010-08-02 09:33:25 +0200 30) #include <linux/time.h>
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 31) #include <linux/vmalloc.h>
2d7a36e23300d drivers/firewire/ohci.c (Stephan Gatzka 2011-07-25 22:16:24 +0200 32) #include <linux/workqueue.h>
cf3e72fd85092 drivers/firewire/fw-ohci.c (Andrew Morton 2006-12-27 14:36:37 -0800 33)
e8ca97021c8eb drivers/firewire/fw-ohci.c (Stefan Richter 2009-06-04 21:09:38 +0200 34) #include <asm/byteorder.h>
c26f02340e89c drivers/firewire/fw-ohci.c (Stefan Richter 2007-08-20 21:40:30 +0200 35) #include <asm/page.h>
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 36)
ea8d006b91ac5 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 02:42:56 +0100 37) #ifdef CONFIG_PPC_PMAC
ea8d006b91ac5 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 02:42:56 +0100 38) #include <asm/pmac_feature.h>
ea8d006b91ac5 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 02:42:56 +0100 39) #endif
ea8d006b91ac5 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 02:42:56 +0100 40)
77c9a5daa9c4d drivers/firewire/fw-ohci.c (Stefan Richter 2009-06-05 16:26:18 +0200 41) #include "core.h"
77c9a5daa9c4d drivers/firewire/fw-ohci.c (Stefan Richter 2009-06-05 16:26:18 +0200 42) #include "ohci.h"
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 43)
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 44) #define ohci_info(ohci, f, args...) dev_info(ohci->card.device, f, ##args)
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 45) #define ohci_notice(ohci, f, args...) dev_notice(ohci->card.device, f, ##args)
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 46) #define ohci_err(ohci, f, args...) dev_err(ohci->card.device, f, ##args)
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 47)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 48) #define DESCRIPTOR_OUTPUT_MORE 0
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 49) #define DESCRIPTOR_OUTPUT_LAST (1 << 12)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 50) #define DESCRIPTOR_INPUT_MORE (2 << 12)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 51) #define DESCRIPTOR_INPUT_LAST (3 << 12)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 52) #define DESCRIPTOR_STATUS (1 << 11)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 53) #define DESCRIPTOR_KEY_IMMEDIATE (2 << 8)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 54) #define DESCRIPTOR_PING (1 << 7)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 55) #define DESCRIPTOR_YY (1 << 6)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 56) #define DESCRIPTOR_NO_IRQ (0 << 4)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 57) #define DESCRIPTOR_IRQ_ERROR (1 << 4)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 58) #define DESCRIPTOR_IRQ_ALWAYS (3 << 4)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 59) #define DESCRIPTOR_BRANCH_ALWAYS (3 << 2)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 60) #define DESCRIPTOR_WAIT (3 << 0)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 61)
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 62) #define DESCRIPTOR_CMD (0xf << 12)
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 63)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 64) struct descriptor {
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 65) __le16 req_count;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 66) __le16 control;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 67) __le32 data_address;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 68) __le32 branch_address;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 69) __le16 res_count;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 70) __le16 transfer_status;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 71) } __attribute__((aligned(16)));
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 72)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 73) #define CONTROL_SET(regs) (regs)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 74) #define CONTROL_CLEAR(regs) ((regs) + 4)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 75) #define COMMAND_PTR(regs) ((regs) + 12)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 76) #define CONTEXT_MATCH(regs) ((regs) + 16)
72e318e07e1fa drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:31 -0500 77)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 78) #define AR_BUFFER_SIZE (32*1024)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 79) #define AR_BUFFERS_MIN DIV_ROUND_UP(AR_BUFFER_SIZE, PAGE_SIZE)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 80) /* we need at least two pages for proper list management */
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 81) #define AR_BUFFERS (AR_BUFFERS_MIN >= 2 ? AR_BUFFERS_MIN : 2)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 82)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 83) #define MAX_ASYNC_PAYLOAD 4096
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 84) #define MAX_AR_PACKET_SIZE (16 + MAX_ASYNC_PAYLOAD + 4)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 85) #define AR_WRAPAROUND_PAGES DIV_ROUND_UP(MAX_AR_PACKET_SIZE, PAGE_SIZE)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 86)
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 87) struct ar_context {
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 88) struct fw_ohci *ohci;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 89) struct page *pages[AR_BUFFERS];
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 90) void *buffer;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 91) struct descriptor *descriptors;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 92) dma_addr_t descriptors_bus;
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 93) void *pointer;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 94) unsigned int last_buffer_index;
72e318e07e1fa drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:31 -0500 95) u32 regs;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 96) struct tasklet_struct tasklet;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 97) };
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 98)
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 99) struct context;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 100)
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 101) typedef int (*descriptor_callback_t)(struct context *ctx,
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 102) struct descriptor *d,
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 103) struct descriptor *last);
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 104)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 105) /*
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 106) * A buffer that contains a block of DMA-able coherent memory used for
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 107) * storing a portion of a DMA descriptor program.
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 108) */
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 109) struct descriptor_buffer {
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 110) struct list_head list;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 111) dma_addr_t buffer_bus;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 112) size_t buffer_size;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 113) size_t used;
c38e7e212acdb drivers/firewire/ohci.c (Gustavo A. R. Silva 2020-05-28 09:35:11 -0500 114) struct descriptor buffer[];
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 115) };
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 116)
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 117) struct context {
373b2edd864b8 drivers/firewire/fw-ohci.c (Stefan Richter 2007-03-04 14:45:18 +0100 118) struct fw_ohci *ohci;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 119) u32 regs;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 120) int total_allocation;
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 121) u32 current_bus;
386a4153a2c14 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:42:46 +0100 122) bool running;
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 123) bool flushing;
373b2edd864b8 drivers/firewire/fw-ohci.c (Stefan Richter 2007-03-04 14:45:18 +0100 124)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 125) /*
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 126) * List of page-sized buffers for storing DMA descriptors.
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 127) * Head of list contains buffers in use and tail of list contains
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 128) * free buffers.
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 129) */
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 130) struct list_head buffer_list;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 131)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 132) /*
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 133) * Pointer to a buffer inside buffer_list that contains the tail
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 134) * end of the current DMA program.
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 135) */
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 136) struct descriptor_buffer *buffer_tail;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 137)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 138) /*
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 139) * The descriptor containing the branch address of the first
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 140) * descriptor that has not yet been filled by the device.
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 141) */
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 142) struct descriptor *last;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 143)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 144) /*
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 145) * The last descriptor block in the DMA program. It contains the branch
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 146) * address that must be updated upon appending a new descriptor.
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 147) */
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 148) struct descriptor *prev;
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 149) int prev_z;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 150)
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 151) descriptor_callback_t callback;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 152)
373b2edd864b8 drivers/firewire/fw-ohci.c (Stefan Richter 2007-03-04 14:45:18 +0100 153) struct tasklet_struct tasklet;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 154) };
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 155)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 156) #define IT_HEADER_SY(v) ((v) << 0)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 157) #define IT_HEADER_TCODE(v) ((v) << 4)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 158) #define IT_HEADER_CHANNEL(v) ((v) << 8)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 159) #define IT_HEADER_TAG(v) ((v) << 14)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 160) #define IT_HEADER_SPEED(v) ((v) << 16)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 161) #define IT_HEADER_DATA_LENGTH(v) ((v) << 16)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 162)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 163) struct iso_context {
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 164) struct fw_iso_context base;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 165) struct context context;
9b32d5f3074e9 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:44 -0500 166) void *header;
9b32d5f3074e9 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:44 -0500 167) size_t header_length;
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 168) unsigned long flushing_completions;
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 169) u32 mc_buffer_bus;
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 170) u16 mc_completed;
910e76c607546 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:04:43 +0100 171) u16 last_timestamp;
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 172) u8 sync;
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 173) u8 tags;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 174) };
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 175)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 176) #define CONFIG_ROM_SIZE 1024
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 177)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 178) struct fw_ohci {
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 179) struct fw_card card;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 180)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 181) __iomem char *registers;
e636fe2576be5 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:04 -0500 182) int node_id;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 183) int generation;
e09770db0fa33 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-11 02:23:29 +0100 184) int request_generation; /* for timestamping incoming requests */
4a635593f4474 drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:58:01 +0100 185) unsigned quirks;
a1a1132bd83d0 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:35:06 +0200 186) unsigned int pri_req_max;
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 187) u32 bus_time;
9d60ef2bd87f2 drivers/firewire/ohci.c (Clemens Ladisch 2012-05-24 19:29:19 +0200 188) bool bus_time_running;
4ffb7a6a066e4 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:36:37 +0200 189) bool is_root;
c8a94ded57e9c drivers/firewire/ohci.c (Stefan Richter 2010-06-12 20:34:50 +0200 190) bool csr_state_setclear_abdicate;
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 191) int n_ir;
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 192) int n_it;
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 193) /*
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 194) * Spinlock for accessing fw_ohci data. Never call out of
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 195) * this driver with this lock held.
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 196) */
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 197) spinlock_t lock;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 198)
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 199) struct mutex phy_reg_mutex;
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 200)
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 201) void *misc_buffer;
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 202) dma_addr_t misc_buffer_bus;
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 203)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 204) struct ar_context ar_request_ctx;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 205) struct ar_context ar_response_ctx;
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 206) struct context at_request_ctx;
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 207) struct context at_response_ctx;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 208)
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 209) u32 it_context_support;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 210) u32 it_context_mask; /* unoccupied IT contexts */
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 211) struct iso_context *it_context_list;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 212) u64 ir_context_channels; /* unoccupied channels */
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 213) u32 ir_context_support;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 214) u32 ir_context_mask; /* unoccupied IR contexts */
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 215) struct iso_context *ir_context_list;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 216) u64 mc_channels; /* channels in use by the multichannel IR context */
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 217) bool mc_allocated;
ecb1cf9c446ad drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:57:32 +0100 218)
ecb1cf9c446ad drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:57:32 +0100 219) __be32 *config_rom;
ecb1cf9c446ad drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:57:32 +0100 220) dma_addr_t config_rom_bus;
ecb1cf9c446ad drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:57:32 +0100 221) __be32 *next_config_rom;
ecb1cf9c446ad drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:57:32 +0100 222) dma_addr_t next_config_rom_bus;
ecb1cf9c446ad drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:57:32 +0100 223) __be32 next_header;
ecb1cf9c446ad drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:57:32 +0100 224)
af53122a2a623 drivers/firewire/ohci.c (Stefan Richter 2013-08-05 15:10:38 +0200 225) __le32 *self_id;
ecb1cf9c446ad drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:57:32 +0100 226) dma_addr_t self_id_bus;
2d7a36e23300d drivers/firewire/ohci.c (Stephan Gatzka 2011-07-25 22:16:24 +0200 227) struct work_struct bus_reset_work;
ecb1cf9c446ad drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:57:32 +0100 228)
ecb1cf9c446ad drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:57:32 +0100 229) u32 self_id_buffer[512];
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 230) };
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 231)
db9ae8fec7b19 drivers/firewire/ohci.c (Stephan Gatzka 2013-08-26 20:50:05 +0200 232) static struct workqueue_struct *selfid_workqueue;
db9ae8fec7b19 drivers/firewire/ohci.c (Stephan Gatzka 2013-08-26 20:50:05 +0200 233)
95688e97cdf74 drivers/firewire/fw-ohci.c (Adrian Bunk 2007-01-22 19:17:37 +0100 234) static inline struct fw_ohci *fw_ohci(struct fw_card *card)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 235) {
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 236) return container_of(card, struct fw_ohci, card);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 237) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 238)
295e3feb92e50 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:40 -0500 239) #define IT_CONTEXT_CYCLE_MATCH_ENABLE 0x80000000
295e3feb92e50 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:40 -0500 240) #define IR_CONTEXT_BUFFER_FILL 0x80000000
295e3feb92e50 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:40 -0500 241) #define IR_CONTEXT_ISOCH_HEADER 0x40000000
295e3feb92e50 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:40 -0500 242) #define IR_CONTEXT_CYCLE_MATCH_ENABLE 0x20000000
295e3feb92e50 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:40 -0500 243) #define IR_CONTEXT_MULTI_CHANNEL_MODE 0x10000000
295e3feb92e50 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:40 -0500 244) #define IR_CONTEXT_DUAL_BUFFER_MODE 0x08000000
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 245)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 246) #define CONTEXT_RUN 0x8000
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 247) #define CONTEXT_WAKE 0x1000
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 248) #define CONTEXT_DEAD 0x0800
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 249) #define CONTEXT_ACTIVE 0x0400
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 250)
8b7b6afaa8470 drivers/firewire/fw-ohci.c (Stefan Richter 2009-01-20 19:10:58 +0100 251) #define OHCI1394_MAX_AT_REQ_RETRIES 0xf
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 252) #define OHCI1394_MAX_AT_RESP_RETRIES 0x2
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 253) #define OHCI1394_MAX_PHYS_RESP_RETRIES 0x8
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 254)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 255) #define OHCI1394_REGISTER_SIZE 0x800
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 256) #define OHCI1394_PCI_HCI_Control 0x40
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 257) #define SELF_ID_BUF_SIZE 0x800
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 258) #define OHCI_TCODE_PHY_PACKET 0x0e
e364cf4e0aa24 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:49 -0500 259) #define OHCI_VERSION_1_1 0x010010
0edeefd99fd31 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:49 -0500 260)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 261) static char ohci_driver_name[] = KBUILD_MODNAME;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 262)
0dbe15f88be5b drivers/firewire/ohci.c (Stefan Richter 2013-08-05 15:14:36 +0200 263) #define PCI_VENDOR_ID_PINNACLE_SYSTEMS 0x11bd
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 264) #define PCI_DEVICE_ID_AGERE_FW643 0x5901
d1bb399ad03c1 drivers/firewire/ohci.c (Clemens Ladisch 2012-01-26 22:05:58 +0100 265) #define PCI_DEVICE_ID_CREATIVE_SB1394 0x4001
262444eecce40 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-05 12:31:25 +0200 266) #define PCI_DEVICE_ID_JMICRON_JMB38X_FW 0x2380
8301b91ba0b2d drivers/firewire/ohci.c (Clemens Ladisch 2010-03-17 11:07:55 +0100 267) #define PCI_DEVICE_ID_TI_TSB12LV22 0x8009
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 268) #define PCI_DEVICE_ID_TI_TSB12LV26 0x8020
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 269) #define PCI_DEVICE_ID_TI_TSB82AA2 0x8025
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 270) #define PCI_DEVICE_ID_VIA_VT630X 0x3044
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 271) #define PCI_REV_ID_VIA_VT6306 0x46
d151f9854f21f drivers/firewire/ohci.c (Stefan Richter 2014-04-16 01:08:08 +0200 272) #define PCI_DEVICE_ID_VIA_VT6315 0x3403
8301b91ba0b2d drivers/firewire/ohci.c (Clemens Ladisch 2010-03-17 11:07:55 +0100 273)
0dbe15f88be5b drivers/firewire/ohci.c (Stefan Richter 2013-08-05 15:14:36 +0200 274) #define QUIRK_CYCLE_TIMER 0x1
0dbe15f88be5b drivers/firewire/ohci.c (Stefan Richter 2013-08-05 15:14:36 +0200 275) #define QUIRK_RESET_PACKET 0x2
0dbe15f88be5b drivers/firewire/ohci.c (Stefan Richter 2013-08-05 15:14:36 +0200 276) #define QUIRK_BE_HEADERS 0x4
0dbe15f88be5b drivers/firewire/ohci.c (Stefan Richter 2013-08-05 15:14:36 +0200 277) #define QUIRK_NO_1394A 0x8
0dbe15f88be5b drivers/firewire/ohci.c (Stefan Richter 2013-08-05 15:14:36 +0200 278) #define QUIRK_NO_MSI 0x10
0dbe15f88be5b drivers/firewire/ohci.c (Stefan Richter 2013-08-05 15:14:36 +0200 279) #define QUIRK_TI_SLLZ059 0x20
0dbe15f88be5b drivers/firewire/ohci.c (Stefan Richter 2013-08-05 15:14:36 +0200 280) #define QUIRK_IR_WAKE 0x40
4a635593f4474 drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:58:01 +0100 281)
4a635593f4474 drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:58:01 +0100 282) /* In case of multiple matches in ohci_quirks[], only the first one is used. */
4a635593f4474 drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:58:01 +0100 283) static const struct {
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 284) unsigned short vendor, device, revision, flags;
4a635593f4474 drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:58:01 +0100 285) } ohci_quirks[] = {
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 286) {PCI_VENDOR_ID_AL, PCI_ANY_ID, PCI_ANY_ID,
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 287) QUIRK_CYCLE_TIMER},
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 288)
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 289) {PCI_VENDOR_ID_APPLE, PCI_DEVICE_ID_APPLE_UNI_N_FW, PCI_ANY_ID,
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 290) QUIRK_BE_HEADERS},
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 291)
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 292) {PCI_VENDOR_ID_ATT, PCI_DEVICE_ID_AGERE_FW643, 6,
0ca49345b6f48 drivers/firewire/ohci.c (Stefan Richter 2014-03-06 20:39:04 +0100 293) QUIRK_NO_MSI},
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 294)
d1bb399ad03c1 drivers/firewire/ohci.c (Clemens Ladisch 2012-01-26 22:05:58 +0100 295) {PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_SB1394, PCI_ANY_ID,
d1bb399ad03c1 drivers/firewire/ohci.c (Clemens Ladisch 2012-01-26 22:05:58 +0100 296) QUIRK_RESET_PACKET},
d1bb399ad03c1 drivers/firewire/ohci.c (Clemens Ladisch 2012-01-26 22:05:58 +0100 297)
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 298) {PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB38X_FW, PCI_ANY_ID,
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 299) QUIRK_NO_MSI},
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 300)
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 301) {PCI_VENDOR_ID_NEC, PCI_ANY_ID, PCI_ANY_ID,
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 302) QUIRK_CYCLE_TIMER},
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 303)
f39aa30d7741f drivers/firewire/ohci.c (Ming Lei 2011-08-31 10:45:46 +0800 304) {PCI_VENDOR_ID_O2, PCI_ANY_ID, PCI_ANY_ID,
f39aa30d7741f drivers/firewire/ohci.c (Ming Lei 2011-08-31 10:45:46 +0800 305) QUIRK_NO_MSI},
f39aa30d7741f drivers/firewire/ohci.c (Ming Lei 2011-08-31 10:45:46 +0800 306)
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 307) {PCI_VENDOR_ID_RICOH, PCI_ANY_ID, PCI_ANY_ID,
320cfa6ce0b3d drivers/firewire/ohci.c (Stefan Richter 2012-01-29 12:41:15 +0100 308) QUIRK_CYCLE_TIMER | QUIRK_NO_MSI},
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 309)
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 310) {PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_TSB12LV22, PCI_ANY_ID,
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 311) QUIRK_CYCLE_TIMER | QUIRK_RESET_PACKET | QUIRK_NO_1394A},
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 312)
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 313) {PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_TSB12LV26, PCI_ANY_ID,
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 314) QUIRK_RESET_PACKET | QUIRK_TI_SLLZ059},
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 315)
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 316) {PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_TSB82AA2, PCI_ANY_ID,
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 317) QUIRK_RESET_PACKET | QUIRK_TI_SLLZ059},
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 318)
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 319) {PCI_VENDOR_ID_TI, PCI_ANY_ID, PCI_ANY_ID,
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 320) QUIRK_RESET_PACKET},
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 321)
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 322) {PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT630X, PCI_REV_ID_VIA_VT6306,
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 323) QUIRK_CYCLE_TIMER | QUIRK_IR_WAKE},
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 324)
d151f9854f21f drivers/firewire/ohci.c (Stefan Richter 2014-04-16 01:08:08 +0200 325) {PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT6315, 0,
d584a66279949 drivers/firewire/ohci.c (Stefan Richter 2014-07-23 20:08:12 +0200 326) QUIRK_CYCLE_TIMER /* FIXME: necessary? */ | QUIRK_NO_MSI},
d151f9854f21f drivers/firewire/ohci.c (Stefan Richter 2014-04-16 01:08:08 +0200 327)
d151f9854f21f drivers/firewire/ohci.c (Stefan Richter 2014-04-16 01:08:08 +0200 328) {PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT6315, PCI_ANY_ID,
d584a66279949 drivers/firewire/ohci.c (Stefan Richter 2014-07-23 20:08:12 +0200 329) QUIRK_NO_MSI},
d151f9854f21f drivers/firewire/ohci.c (Stefan Richter 2014-04-16 01:08:08 +0200 330)
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 331) {PCI_VENDOR_ID_VIA, PCI_ANY_ID, PCI_ANY_ID,
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 332) QUIRK_CYCLE_TIMER | QUIRK_NO_MSI},
4a635593f4474 drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:58:01 +0100 333) };
4a635593f4474 drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:58:01 +0100 334)
3e9cc2f3b7dda drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:58:29 +0100 335) /* This overrides anything that was found in ohci_quirks[]. */
3e9cc2f3b7dda drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:58:29 +0100 336) static int param_quirks;
3e9cc2f3b7dda drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:58:29 +0100 337) module_param_named(quirks, param_quirks, int, 0644);
3e9cc2f3b7dda drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:58:29 +0100 338) MODULE_PARM_DESC(quirks, "Chip quirks (default = 0"
3e9cc2f3b7dda drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:58:29 +0100 339) ", nonatomic cycle timer = " __stringify(QUIRK_CYCLE_TIMER)
3e9cc2f3b7dda drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:58:29 +0100 340) ", reset packet generation = " __stringify(QUIRK_RESET_PACKET)
8a168ca7074b4 drivers/firewire/ohci.c (Masanari Iida 2012-12-29 02:00:09 +0900 341) ", AR/selfID endianness = " __stringify(QUIRK_BE_HEADERS)
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 342) ", no 1394a enhancements = " __stringify(QUIRK_NO_1394A)
262444eecce40 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-05 12:31:25 +0200 343) ", disable MSI = " __stringify(QUIRK_NO_MSI)
28897fb73c848 drivers/firewire/ohci.c (Stefan Richter 2011-09-19 00:17:37 +0200 344) ", TI SLLZ059 erratum = " __stringify(QUIRK_TI_SLLZ059)
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 345) ", IR wake unreliable = " __stringify(QUIRK_IR_WAKE)
3e9cc2f3b7dda drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:58:29 +0100 346) ")");
3e9cc2f3b7dda drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:58:29 +0100 347)
a007bb857e0b2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-04-07 22:33:35 +0200 348) #define OHCI_PARAM_DEBUG_AT_AR 1
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 349) #define OHCI_PARAM_DEBUG_SELFIDS 2
a007bb857e0b2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-04-07 22:33:35 +0200 350) #define OHCI_PARAM_DEBUG_IRQS 4
a007bb857e0b2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-04-07 22:33:35 +0200 351) #define OHCI_PARAM_DEBUG_BUSRESETS 8 /* only effective before chip init */
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 352)
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 353) static int param_debug;
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 354) module_param_named(debug, param_debug, int, 0644);
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 355) MODULE_PARM_DESC(debug, "Verbose logging (default = 0"
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 356) ", AT/AR events = " __stringify(OHCI_PARAM_DEBUG_AT_AR)
a007bb857e0b2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-04-07 22:33:35 +0200 357) ", self-IDs = " __stringify(OHCI_PARAM_DEBUG_SELFIDS)
a007bb857e0b2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-04-07 22:33:35 +0200 358) ", IRQs = " __stringify(OHCI_PARAM_DEBUG_IRQS)
a007bb857e0b2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-04-07 22:33:35 +0200 359) ", busReset events = " __stringify(OHCI_PARAM_DEBUG_BUSRESETS)
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 360) ", or a combination, or all = -1)");
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 361)
8bc588e0e585b drivers/firewire/ohci.c (Lubomir Rintel 2013-12-22 11:34:22 +0100 362) static bool param_remote_dma;
8bc588e0e585b drivers/firewire/ohci.c (Lubomir Rintel 2013-12-22 11:34:22 +0100 363) module_param_named(remote_dma, param_remote_dma, bool, 0444);
8bc588e0e585b drivers/firewire/ohci.c (Lubomir Rintel 2013-12-22 11:34:22 +0100 364) MODULE_PARM_DESC(remote_dma, "Enable unfiltered remote DMA (default = N)");
8bc588e0e585b drivers/firewire/ohci.c (Lubomir Rintel 2013-12-22 11:34:22 +0100 365)
64d2172019dcf drivers/firewire/ohci.c (Stefan Richter 2011-12-20 21:32:46 +0100 366) static void log_irqs(struct fw_ohci *ohci, u32 evt)
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 367) {
a007bb857e0b2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-04-07 22:33:35 +0200 368) if (likely(!(param_debug &
a007bb857e0b2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-04-07 22:33:35 +0200 369) (OHCI_PARAM_DEBUG_IRQS | OHCI_PARAM_DEBUG_BUSRESETS))))
a007bb857e0b2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-04-07 22:33:35 +0200 370) return;
a007bb857e0b2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-04-07 22:33:35 +0200 371)
a007bb857e0b2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-04-07 22:33:35 +0200 372) if (!(param_debug & OHCI_PARAM_DEBUG_IRQS) &&
a007bb857e0b2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-04-07 22:33:35 +0200 373) !(evt & OHCI1394_busReset))
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 374) return;
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 375)
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 376) ohci_notice(ohci, "IRQ %08x%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n", evt,
161b96e782ec9 drivers/firewire/fw-ohci.c (Stefan Richter 2008-06-14 14:23:43 +0200 377) evt & OHCI1394_selfIDComplete ? " selfID" : "",
161b96e782ec9 drivers/firewire/fw-ohci.c (Stefan Richter 2008-06-14 14:23:43 +0200 378) evt & OHCI1394_RQPkt ? " AR_req" : "",
161b96e782ec9 drivers/firewire/fw-ohci.c (Stefan Richter 2008-06-14 14:23:43 +0200 379) evt & OHCI1394_RSPkt ? " AR_resp" : "",
161b96e782ec9 drivers/firewire/fw-ohci.c (Stefan Richter 2008-06-14 14:23:43 +0200 380) evt & OHCI1394_reqTxComplete ? " AT_req" : "",
161b96e782ec9 drivers/firewire/fw-ohci.c (Stefan Richter 2008-06-14 14:23:43 +0200 381) evt & OHCI1394_respTxComplete ? " AT_resp" : "",
161b96e782ec9 drivers/firewire/fw-ohci.c (Stefan Richter 2008-06-14 14:23:43 +0200 382) evt & OHCI1394_isochRx ? " IR" : "",
161b96e782ec9 drivers/firewire/fw-ohci.c (Stefan Richter 2008-06-14 14:23:43 +0200 383) evt & OHCI1394_isochTx ? " IT" : "",
161b96e782ec9 drivers/firewire/fw-ohci.c (Stefan Richter 2008-06-14 14:23:43 +0200 384) evt & OHCI1394_postedWriteErr ? " postedWriteErr" : "",
161b96e782ec9 drivers/firewire/fw-ohci.c (Stefan Richter 2008-06-14 14:23:43 +0200 385) evt & OHCI1394_cycleTooLong ? " cycleTooLong" : "",
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 386) evt & OHCI1394_cycle64Seconds ? " cycle64Seconds" : "",
5ed1f321a71b8 drivers/firewire/ohci.c (Jay Fenlason 2009-11-17 12:29:17 -0500 387) evt & OHCI1394_cycleInconsistent ? " cycleInconsistent" : "",
161b96e782ec9 drivers/firewire/fw-ohci.c (Stefan Richter 2008-06-14 14:23:43 +0200 388) evt & OHCI1394_regAccessFail ? " regAccessFail" : "",
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 389) evt & OHCI1394_unrecoverableError ? " unrecoverableError" : "",
161b96e782ec9 drivers/firewire/fw-ohci.c (Stefan Richter 2008-06-14 14:23:43 +0200 390) evt & OHCI1394_busReset ? " busReset" : "",
161b96e782ec9 drivers/firewire/fw-ohci.c (Stefan Richter 2008-06-14 14:23:43 +0200 391) evt & ~(OHCI1394_selfIDComplete | OHCI1394_RQPkt |
161b96e782ec9 drivers/firewire/fw-ohci.c (Stefan Richter 2008-06-14 14:23:43 +0200 392) OHCI1394_RSPkt | OHCI1394_reqTxComplete |
161b96e782ec9 drivers/firewire/fw-ohci.c (Stefan Richter 2008-06-14 14:23:43 +0200 393) OHCI1394_respTxComplete | OHCI1394_isochRx |
161b96e782ec9 drivers/firewire/fw-ohci.c (Stefan Richter 2008-06-14 14:23:43 +0200 394) OHCI1394_isochTx | OHCI1394_postedWriteErr |
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 395) OHCI1394_cycleTooLong | OHCI1394_cycle64Seconds |
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 396) OHCI1394_cycleInconsistent |
161b96e782ec9 drivers/firewire/fw-ohci.c (Stefan Richter 2008-06-14 14:23:43 +0200 397) OHCI1394_regAccessFail | OHCI1394_busReset)
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 398) ? " ?" : "");
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 399) }
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 400)
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 401) static const char *speed[] = {
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 402) [0] = "S100", [1] = "S200", [2] = "S400", [3] = "beta",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 403) };
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 404) static const char *power[] = {
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 405) [0] = "+0W", [1] = "+15W", [2] = "+30W", [3] = "+45W",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 406) [4] = "-3W", [5] = " ?W", [6] = "-3..-6W", [7] = "-3..-10W",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 407) };
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 408) static const char port[] = { '.', '-', 'p', 'c', };
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 409)
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 410) static char _p(u32 *s, int shift)
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 411) {
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 412) return port[*s >> shift & 3];
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 413) }
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 414)
64d2172019dcf drivers/firewire/ohci.c (Stefan Richter 2011-12-20 21:32:46 +0100 415) static void log_selfids(struct fw_ohci *ohci, int generation, int self_id_count)
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 416) {
64d2172019dcf drivers/firewire/ohci.c (Stefan Richter 2011-12-20 21:32:46 +0100 417) u32 *s;
64d2172019dcf drivers/firewire/ohci.c (Stefan Richter 2011-12-20 21:32:46 +0100 418)
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 419) if (likely(!(param_debug & OHCI_PARAM_DEBUG_SELFIDS)))
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 420) return;
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 421)
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 422) ohci_notice(ohci, "%d selfIDs, generation %d, local node ID %04x\n",
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 423) self_id_count, generation, ohci->node_id);
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 424)
64d2172019dcf drivers/firewire/ohci.c (Stefan Richter 2011-12-20 21:32:46 +0100 425) for (s = ohci->self_id_buffer; self_id_count--; ++s)
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 426) if ((*s & 1 << 23) == 0)
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 427) ohci_notice(ohci,
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 428) "selfID 0: %08x, phy %d [%c%c%c] %s gc=%d %s %s%s%s\n",
161b96e782ec9 drivers/firewire/fw-ohci.c (Stefan Richter 2008-06-14 14:23:43 +0200 429) *s, *s >> 24 & 63, _p(s, 6), _p(s, 4), _p(s, 2),
161b96e782ec9 drivers/firewire/fw-ohci.c (Stefan Richter 2008-06-14 14:23:43 +0200 430) speed[*s >> 14 & 3], *s >> 16 & 63,
161b96e782ec9 drivers/firewire/fw-ohci.c (Stefan Richter 2008-06-14 14:23:43 +0200 431) power[*s >> 8 & 7], *s >> 22 & 1 ? "L" : "",
161b96e782ec9 drivers/firewire/fw-ohci.c (Stefan Richter 2008-06-14 14:23:43 +0200 432) *s >> 11 & 1 ? "c" : "", *s & 2 ? "i" : "");
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 433) else
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 434) ohci_notice(ohci,
64d2172019dcf drivers/firewire/ohci.c (Stefan Richter 2011-12-20 21:32:46 +0100 435) "selfID n: %08x, phy %d [%c%c%c%c%c%c%c%c]\n",
161b96e782ec9 drivers/firewire/fw-ohci.c (Stefan Richter 2008-06-14 14:23:43 +0200 436) *s, *s >> 24 & 63,
161b96e782ec9 drivers/firewire/fw-ohci.c (Stefan Richter 2008-06-14 14:23:43 +0200 437) _p(s, 16), _p(s, 14), _p(s, 12), _p(s, 10),
161b96e782ec9 drivers/firewire/fw-ohci.c (Stefan Richter 2008-06-14 14:23:43 +0200 438) _p(s, 8), _p(s, 6), _p(s, 4), _p(s, 2));
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 439) }
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 440)
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 441) static const char *evts[] = {
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 442) [0x00] = "evt_no_status", [0x01] = "-reserved-",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 443) [0x02] = "evt_long_packet", [0x03] = "evt_missing_ack",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 444) [0x04] = "evt_underrun", [0x05] = "evt_overrun",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 445) [0x06] = "evt_descriptor_read", [0x07] = "evt_data_read",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 446) [0x08] = "evt_data_write", [0x09] = "evt_bus_reset",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 447) [0x0a] = "evt_timeout", [0x0b] = "evt_tcode_err",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 448) [0x0c] = "-reserved-", [0x0d] = "-reserved-",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 449) [0x0e] = "evt_unknown", [0x0f] = "evt_flushed",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 450) [0x10] = "-reserved-", [0x11] = "ack_complete",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 451) [0x12] = "ack_pending ", [0x13] = "-reserved-",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 452) [0x14] = "ack_busy_X", [0x15] = "ack_busy_A",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 453) [0x16] = "ack_busy_B", [0x17] = "-reserved-",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 454) [0x18] = "-reserved-", [0x19] = "-reserved-",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 455) [0x1a] = "-reserved-", [0x1b] = "ack_tardy",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 456) [0x1c] = "-reserved-", [0x1d] = "ack_data_error",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 457) [0x1e] = "ack_type_error", [0x1f] = "-reserved-",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 458) [0x20] = "pending/cancelled",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 459) };
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 460) static const char *tcodes[] = {
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 461) [0x0] = "QW req", [0x1] = "BW req",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 462) [0x2] = "W resp", [0x3] = "-reserved-",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 463) [0x4] = "QR req", [0x5] = "BR req",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 464) [0x6] = "QR resp", [0x7] = "BR resp",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 465) [0x8] = "cycle start", [0x9] = "Lk req",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 466) [0xa] = "async stream packet", [0xb] = "Lk resp",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 467) [0xc] = "-reserved-", [0xd] = "-reserved-",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 468) [0xe] = "link internal", [0xf] = "-reserved-",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 469) };
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 470)
64d2172019dcf drivers/firewire/ohci.c (Stefan Richter 2011-12-20 21:32:46 +0100 471) static void log_ar_at_event(struct fw_ohci *ohci,
64d2172019dcf drivers/firewire/ohci.c (Stefan Richter 2011-12-20 21:32:46 +0100 472) char dir, int speed, u32 *header, int evt)
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 473) {
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 474) int tcode = header[0] >> 4 & 0xf;
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 475) char specific[12];
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 476)
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 477) if (likely(!(param_debug & OHCI_PARAM_DEBUG_AT_AR)))
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 478) return;
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 479)
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 480) if (unlikely(evt >= ARRAY_SIZE(evts)))
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 481) evt = 0x1f;
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 482)
08ddb2f4c270b drivers/firewire/fw-ohci.c (Stefan Richter 2008-04-11 00:51:15 +0200 483) if (evt == OHCI1394_evt_bus_reset) {
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 484) ohci_notice(ohci, "A%c evt_bus_reset, generation %d\n",
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 485) dir, (header[2] >> 16) & 0xff);
08ddb2f4c270b drivers/firewire/fw-ohci.c (Stefan Richter 2008-04-11 00:51:15 +0200 486) return;
08ddb2f4c270b drivers/firewire/fw-ohci.c (Stefan Richter 2008-04-11 00:51:15 +0200 487) }
08ddb2f4c270b drivers/firewire/fw-ohci.c (Stefan Richter 2008-04-11 00:51:15 +0200 488)
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 489) switch (tcode) {
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 490) case 0x0: case 0x6: case 0x8:
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 491) snprintf(specific, sizeof(specific), " = %08x",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 492) be32_to_cpu((__force __be32)header[3]));
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 493) break;
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 494) case 0x1: case 0x5: case 0x7: case 0x9: case 0xb:
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 495) snprintf(specific, sizeof(specific), " %x,%x",
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 496) header[3] >> 16, header[3] & 0xffff);
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 497) break;
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 498) default:
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 499) specific[0] = '\0';
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 500) }
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 501)
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 502) switch (tcode) {
5b06db166c4d3 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:47 +0100 503) case 0xa:
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 504) ohci_notice(ohci, "A%c %s, %s\n",
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 505) dir, evts[evt], tcodes[tcode]);
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 506) break;
5b06db166c4d3 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:47 +0100 507) case 0xe:
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 508) ohci_notice(ohci, "A%c %s, PHY %08x %08x\n",
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 509) dir, evts[evt], header[1], header[2]);
5b06db166c4d3 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:47 +0100 510) break;
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 511) case 0x0: case 0x1: case 0x4: case 0x5: case 0x9:
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 512) ohci_notice(ohci,
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 513) "A%c spd %x tl %02x, %04x -> %04x, %s, %s, %04x%08x%s\n",
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 514) dir, speed, header[0] >> 10 & 0x3f,
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 515) header[1] >> 16, header[0] >> 16, evts[evt],
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 516) tcodes[tcode], header[1] & 0xffff, header[2], specific);
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 517) break;
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 518) default:
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 519) ohci_notice(ohci,
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 520) "A%c spd %x tl %02x, %04x -> %04x, %s, %s%s\n",
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 521) dir, speed, header[0] >> 10 & 0x3f,
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 522) header[1] >> 16, header[0] >> 16, evts[evt],
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 523) tcodes[tcode], specific);
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 524) }
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 525) }
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 526)
95688e97cdf74 drivers/firewire/fw-ohci.c (Adrian Bunk 2007-01-22 19:17:37 +0100 527) static inline void reg_write(const struct fw_ohci *ohci, int offset, u32 data)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 528) {
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 529) writel(data, ohci->registers + offset);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 530) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 531)
95688e97cdf74 drivers/firewire/fw-ohci.c (Adrian Bunk 2007-01-22 19:17:37 +0100 532) static inline u32 reg_read(const struct fw_ohci *ohci, int offset)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 533) {
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 534) return readl(ohci->registers + offset);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 535) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 536)
95688e97cdf74 drivers/firewire/fw-ohci.c (Adrian Bunk 2007-01-22 19:17:37 +0100 537) static inline void flush_writes(const struct fw_ohci *ohci)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 538) {
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 539) /* Do a dummy read to flush writes. */
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 540) reg_read(ohci, OHCI1394_Version);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 541) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 542)
b14c369d87d7f drivers/firewire/ohci.c (Stefan Richter 2011-06-21 15:24:26 +0200 543) /*
b14c369d87d7f drivers/firewire/ohci.c (Stefan Richter 2011-06-21 15:24:26 +0200 544) * Beware! read_phy_reg(), write_phy_reg(), update_phy_reg(), and
b14c369d87d7f drivers/firewire/ohci.c (Stefan Richter 2011-06-21 15:24:26 +0200 545) * read_paged_phy_reg() require the caller to hold ohci->phy_reg_mutex.
b14c369d87d7f drivers/firewire/ohci.c (Stefan Richter 2011-06-21 15:24:26 +0200 546) * In other words, only use ohci_read_phy_reg() and ohci_update_phy_reg()
b14c369d87d7f drivers/firewire/ohci.c (Stefan Richter 2011-06-21 15:24:26 +0200 547) * directly. Exceptions are intrinsically serialized contexts like pci_probe.
b14c369d87d7f drivers/firewire/ohci.c (Stefan Richter 2011-06-21 15:24:26 +0200 548) */
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 549) static int read_phy_reg(struct fw_ohci *ohci, int addr)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 550) {
4a96b4fcd6b35 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:52 +0200 551) u32 val;
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 552) int i;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 553)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 554) reg_write(ohci, OHCI1394_PhyControl, OHCI1394_PhyControl_Read(addr));
153e3979201b7 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:22:07 +0200 555) for (i = 0; i < 3 + 100; i++) {
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 556) val = reg_read(ohci, OHCI1394_PhyControl);
215fa444c2a6d drivers/firewire/ohci.c (Stefan Richter 2011-06-22 21:05:08 +0200 557) if (!~val)
215fa444c2a6d drivers/firewire/ohci.c (Stefan Richter 2011-06-22 21:05:08 +0200 558) return -ENODEV; /* Card was ejected. */
215fa444c2a6d drivers/firewire/ohci.c (Stefan Richter 2011-06-22 21:05:08 +0200 559)
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 560) if (val & OHCI1394_PhyControl_ReadDone)
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 561) return OHCI1394_PhyControl_ReadData(val);
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 562)
153e3979201b7 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:22:07 +0200 563) /*
153e3979201b7 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:22:07 +0200 564) * Try a few times without waiting. Sleeping is necessary
153e3979201b7 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:22:07 +0200 565) * only when the link/PHY interface is busy.
153e3979201b7 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:22:07 +0200 566) */
153e3979201b7 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:22:07 +0200 567) if (i >= 3)
153e3979201b7 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:22:07 +0200 568) msleep(1);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 569) }
6fe9efb9c9fbc drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:57:40 -0400 570) ohci_err(ohci, "failed to read phy reg %d\n", addr);
6fe9efb9c9fbc drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:57:40 -0400 571) dump_stack();
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 572)
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 573) return -EBUSY;
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 574) }
4a96b4fcd6b35 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:52 +0200 575)
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 576) static int write_phy_reg(const struct fw_ohci *ohci, int addr, u32 val)
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 577) {
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 578) int i;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 579)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 580) reg_write(ohci, OHCI1394_PhyControl,
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 581) OHCI1394_PhyControl_Write(addr, val));
153e3979201b7 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:22:07 +0200 582) for (i = 0; i < 3 + 100; i++) {
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 583) val = reg_read(ohci, OHCI1394_PhyControl);
215fa444c2a6d drivers/firewire/ohci.c (Stefan Richter 2011-06-22 21:05:08 +0200 584) if (!~val)
215fa444c2a6d drivers/firewire/ohci.c (Stefan Richter 2011-06-22 21:05:08 +0200 585) return -ENODEV; /* Card was ejected. */
215fa444c2a6d drivers/firewire/ohci.c (Stefan Richter 2011-06-22 21:05:08 +0200 586)
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 587) if (!(val & OHCI1394_PhyControl_WritePending))
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 588) return 0;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 589)
153e3979201b7 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:22:07 +0200 590) if (i >= 3)
153e3979201b7 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:22:07 +0200 591) msleep(1);
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 592) }
6fe9efb9c9fbc drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:57:40 -0400 593) ohci_err(ohci, "failed to write phy reg %d, val %u\n", addr, val);
6fe9efb9c9fbc drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:57:40 -0400 594) dump_stack();
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 595)
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 596) return -EBUSY;
4a96b4fcd6b35 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:52 +0200 597) }
4a96b4fcd6b35 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:52 +0200 598)
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 599) static int update_phy_reg(struct fw_ohci *ohci, int addr,
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 600) int clear_bits, int set_bits)
4a96b4fcd6b35 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:52 +0200 601) {
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 602) int ret = read_phy_reg(ohci, addr);
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 603) if (ret < 0)
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 604) return ret;
4a96b4fcd6b35 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:52 +0200 605)
e7014dada0419 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-01 16:40:18 +0200 606) /*
e7014dada0419 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-01 16:40:18 +0200 607) * The interrupt status bits are cleared by writing a one bit.
e7014dada0419 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-01 16:40:18 +0200 608) * Avoid clearing them unless explicitly requested in set_bits.
e7014dada0419 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-01 16:40:18 +0200 609) */
e7014dada0419 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-01 16:40:18 +0200 610) if (addr == 5)
e7014dada0419 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-01 16:40:18 +0200 611) clear_bits |= PHY_INT_STATUS_BITS;
e7014dada0419 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-01 16:40:18 +0200 612)
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 613) return write_phy_reg(ohci, addr, (ret & ~clear_bits) | set_bits);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 614) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 615)
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 616) static int read_paged_phy_reg(struct fw_ohci *ohci, int page, int addr)
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 617) {
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 618) int ret;
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 619)
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 620) ret = update_phy_reg(ohci, 7, PHY_PAGE_SELECT, page << 5);
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 621) if (ret < 0)
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 622) return ret;
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 623)
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 624) return read_phy_reg(ohci, addr);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 625) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 626)
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 627) static int ohci_read_phy_reg(struct fw_card *card, int addr)
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 628) {
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 629) struct fw_ohci *ohci = fw_ohci(card);
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 630) int ret;
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 631)
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 632) mutex_lock(&ohci->phy_reg_mutex);
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 633) ret = read_phy_reg(ohci, addr);
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 634) mutex_unlock(&ohci->phy_reg_mutex);
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 635)
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 636) return ret;
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 637) }
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 638)
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 639) static int ohci_update_phy_reg(struct fw_card *card, int addr,
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 640) int clear_bits, int set_bits)
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 641) {
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 642) struct fw_ohci *ohci = fw_ohci(card);
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 643) int ret;
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 644)
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 645) mutex_lock(&ohci->phy_reg_mutex);
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 646) ret = update_phy_reg(ohci, addr, clear_bits, set_bits);
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 647) mutex_unlock(&ohci->phy_reg_mutex);
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 648)
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 649) return ret;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 650) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 651)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 652) static inline dma_addr_t ar_buffer_bus(struct ar_context *ctx, unsigned int i)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 653) {
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 654) return page_private(ctx->pages[i]);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 655) }
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 656)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 657) static void ar_context_link_page(struct ar_context *ctx, unsigned int index)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 658) {
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 659) struct descriptor *d;
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 660)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 661) d = &ctx->descriptors[index];
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 662) d->branch_address &= cpu_to_le32(~0xf);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 663) d->res_count = cpu_to_le16(PAGE_SIZE);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 664) d->transfer_status = 0;
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 665)
071595ebdc66d drivers/firewire/ohci.c (Stefan Richter 2010-07-27 13:20:33 +0200 666) wmb(); /* finish init of new descriptors before branch_address update */
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 667) d = &ctx->descriptors[ctx->last_buffer_index];
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 668) d->branch_address |= cpu_to_le32(1);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 669)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 670) ctx->last_buffer_index = index;
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 671)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 672) reg_write(ctx->ohci, CONTROL_SET(ctx->regs), CONTEXT_WAKE);
837596a61ba8f drivers/firewire/ohci.c (Clemens Ladisch 2010-10-25 11:42:42 +0200 673) }
837596a61ba8f drivers/firewire/ohci.c (Clemens Ladisch 2010-10-25 11:42:42 +0200 674)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 675) static void ar_context_release(struct ar_context *ctx)
837596a61ba8f drivers/firewire/ohci.c (Clemens Ladisch 2010-10-25 11:42:42 +0200 676) {
c51a9868d361a drivers/firewire/ohci.c (Christoph Hellwig 2020-09-01 13:48:33 +0200 677) struct device *dev = ctx->ohci->card.device;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 678) unsigned int i;
837596a61ba8f drivers/firewire/ohci.c (Clemens Ladisch 2010-10-25 11:42:42 +0200 679)
51b04d59c2743 drivers/firewire/ohci.c (Clemens Ladisch 2014-11-16 21:08:49 +0100 680) vunmap(ctx->buffer);
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 681)
c51a9868d361a drivers/firewire/ohci.c (Christoph Hellwig 2020-09-01 13:48:33 +0200 682) for (i = 0; i < AR_BUFFERS; i++) {
c51a9868d361a drivers/firewire/ohci.c (Christoph Hellwig 2020-09-01 13:48:33 +0200 683) if (ctx->pages[i])
c51a9868d361a drivers/firewire/ohci.c (Christoph Hellwig 2020-09-01 13:48:33 +0200 684) dma_free_pages(dev, PAGE_SIZE, ctx->pages[i],
c51a9868d361a drivers/firewire/ohci.c (Christoph Hellwig 2020-09-01 13:48:33 +0200 685) ar_buffer_bus(ctx, i), DMA_FROM_DEVICE);
c51a9868d361a drivers/firewire/ohci.c (Christoph Hellwig 2020-09-01 13:48:33 +0200 686) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 687) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 688)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 689) static void ar_context_abort(struct ar_context *ctx, const char *error_msg)
a55709ba9d270 drivers/firewire/fw-ohci.c (Jay Fenlason 2008-10-22 15:59:42 -0400 690) {
64d2172019dcf drivers/firewire/ohci.c (Stefan Richter 2011-12-20 21:32:46 +0100 691) struct fw_ohci *ohci = ctx->ohci;
a55709ba9d270 drivers/firewire/fw-ohci.c (Jay Fenlason 2008-10-22 15:59:42 -0400 692)
64d2172019dcf drivers/firewire/ohci.c (Stefan Richter 2011-12-20 21:32:46 +0100 693) if (reg_read(ohci, CONTROL_CLEAR(ctx->regs)) & CONTEXT_RUN) {
64d2172019dcf drivers/firewire/ohci.c (Stefan Richter 2011-12-20 21:32:46 +0100 694) reg_write(ohci, CONTROL_CLEAR(ctx->regs), CONTEXT_RUN);
64d2172019dcf drivers/firewire/ohci.c (Stefan Richter 2011-12-20 21:32:46 +0100 695) flush_writes(ohci);
a55709ba9d270 drivers/firewire/fw-ohci.c (Jay Fenlason 2008-10-22 15:59:42 -0400 696)
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 697) ohci_err(ohci, "AR error: %s; DMA stopped\n", error_msg);
a55709ba9d270 drivers/firewire/fw-ohci.c (Jay Fenlason 2008-10-22 15:59:42 -0400 698) }
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 699) /* FIXME: restart? */
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 700) }
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 701)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 702) static inline unsigned int ar_next_buffer_index(unsigned int index)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 703) {
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 704) return (index + 1) % AR_BUFFERS;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 705) }
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 706)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 707) static inline unsigned int ar_first_buffer_index(struct ar_context *ctx)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 708) {
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 709) return ar_next_buffer_index(ctx->last_buffer_index);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 710) }
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 711)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 712) /*
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 713) * We search for the buffer that contains the last AR packet DMA data written
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 714) * by the controller.
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 715) */
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 716) static unsigned int ar_search_last_active_buffer(struct ar_context *ctx,
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 717) unsigned int *buffer_offset)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 718) {
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 719) unsigned int i, next_i, last = ctx->last_buffer_index;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 720) __le16 res_count, next_res_count;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 721)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 722) i = ar_first_buffer_index(ctx);
6aa7de059173a drivers/firewire/ohci.c (Mark Rutland 2017-10-23 14:07:29 -0700 723) res_count = READ_ONCE(ctx->descriptors[i].res_count);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 724)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 725) /* A buffer that is not yet completely filled must be the last one. */
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 726) while (i != last && res_count == 0) {
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 727)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 728) /* Peek at the next descriptor. */
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 729) next_i = ar_next_buffer_index(i);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 730) rmb(); /* read descriptors in order */
6aa7de059173a drivers/firewire/ohci.c (Mark Rutland 2017-10-23 14:07:29 -0700 731) next_res_count = READ_ONCE(ctx->descriptors[next_i].res_count);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 732) /*
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 733) * If the next descriptor is still empty, we must stop at this
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 734) * descriptor.
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 735) */
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 736) if (next_res_count == cpu_to_le16(PAGE_SIZE)) {
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 737) /*
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 738) * The exception is when the DMA data for one packet is
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 739) * split over three buffers; in this case, the middle
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 740) * buffer's descriptor might be never updated by the
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 741) * controller and look still empty, and we have to peek
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 742) * at the third one.
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 743) */
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 744) if (MAX_AR_PACKET_SIZE > PAGE_SIZE && i != last) {
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 745) next_i = ar_next_buffer_index(next_i);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 746) rmb();
6aa7de059173a drivers/firewire/ohci.c (Mark Rutland 2017-10-23 14:07:29 -0700 747) next_res_count = READ_ONCE(ctx->descriptors[next_i].res_count);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 748) if (next_res_count != cpu_to_le16(PAGE_SIZE))
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 749) goto next_buffer_is_active;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 750) }
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 751)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 752) break;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 753) }
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 754)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 755) next_buffer_is_active:
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 756) i = next_i;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 757) res_count = next_res_count;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 758) }
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 759)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 760) rmb(); /* read res_count before the DMA data */
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 761)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 762) *buffer_offset = PAGE_SIZE - le16_to_cpu(res_count);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 763) if (*buffer_offset > PAGE_SIZE) {
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 764) *buffer_offset = 0;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 765) ar_context_abort(ctx, "corrupted descriptor");
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 766) }
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 767)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 768) return i;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 769) }
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 770)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 771) static void ar_sync_buffers_for_cpu(struct ar_context *ctx,
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 772) unsigned int end_buffer_index,
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 773) unsigned int end_buffer_offset)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 774) {
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 775) unsigned int i;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 776)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 777) i = ar_first_buffer_index(ctx);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 778) while (i != end_buffer_index) {
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 779) dma_sync_single_for_cpu(ctx->ohci->card.device,
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 780) ar_buffer_bus(ctx, i),
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 781) PAGE_SIZE, DMA_FROM_DEVICE);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 782) i = ar_next_buffer_index(i);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 783) }
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 784) if (end_buffer_offset > 0)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 785) dma_sync_single_for_cpu(ctx->ohci->card.device,
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 786) ar_buffer_bus(ctx, i),
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 787) end_buffer_offset, DMA_FROM_DEVICE);
a55709ba9d270 drivers/firewire/fw-ohci.c (Jay Fenlason 2008-10-22 15:59:42 -0400 788) }
a55709ba9d270 drivers/firewire/fw-ohci.c (Jay Fenlason 2008-10-22 15:59:42 -0400 789)
11bf20ad02888 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 02:47:15 +0100 790) #if defined(CONFIG_PPC_PMAC) && defined(CONFIG_PPC32)
11bf20ad02888 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 02:47:15 +0100 791) #define cond_le32_to_cpu(v) \
4a635593f4474 drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:58:01 +0100 792) (ohci->quirks & QUIRK_BE_HEADERS ? (__force __u32)(v) : le32_to_cpu(v))
11bf20ad02888 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 02:47:15 +0100 793) #else
11bf20ad02888 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 02:47:15 +0100 794) #define cond_le32_to_cpu(v) le32_to_cpu(v)
11bf20ad02888 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 02:47:15 +0100 795) #endif
11bf20ad02888 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 02:47:15 +0100 796)
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 797) static __le32 *handle_ar_packet(struct ar_context *ctx, __le32 *buffer)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 798) {
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 799) struct fw_ohci *ohci = ctx->ohci;
2639a6fb268e1 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:37:57 -0500 800) struct fw_packet p;
2639a6fb268e1 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:37:57 -0500 801) u32 status, length, tcode;
43286568adb3c drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-11 21:22:26 +0100 802) int evt;
2639a6fb268e1 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:37:57 -0500 803)
11bf20ad02888 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 02:47:15 +0100 804) p.header[0] = cond_le32_to_cpu(buffer[0]);
11bf20ad02888 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 02:47:15 +0100 805) p.header[1] = cond_le32_to_cpu(buffer[1]);
11bf20ad02888 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 02:47:15 +0100 806) p.header[2] = cond_le32_to_cpu(buffer[2]);
2639a6fb268e1 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:37:57 -0500 807)
2639a6fb268e1 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:37:57 -0500 808) tcode = (p.header[0] >> 4) & 0x0f;
2639a6fb268e1 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:37:57 -0500 809) switch (tcode) {
2639a6fb268e1 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:37:57 -0500 810) case TCODE_WRITE_QUADLET_REQUEST:
2639a6fb268e1 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:37:57 -0500 811) case TCODE_READ_QUADLET_RESPONSE:
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 812) p.header[3] = (__force __u32) buffer[3];
2639a6fb268e1 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:37:57 -0500 813) p.header_length = 16;
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 814) p.payload_length = 0;
2639a6fb268e1 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:37:57 -0500 815) break;
2639a6fb268e1 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:37:57 -0500 816)
2639a6fb268e1 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:37:57 -0500 817) case TCODE_READ_BLOCK_REQUEST :
11bf20ad02888 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 02:47:15 +0100 818) p.header[3] = cond_le32_to_cpu(buffer[3]);
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 819) p.header_length = 16;
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 820) p.payload_length = 0;
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 821) break;
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 822)
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 823) case TCODE_WRITE_BLOCK_REQUEST:
2639a6fb268e1 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:37:57 -0500 824) case TCODE_READ_BLOCK_RESPONSE:
2639a6fb268e1 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:37:57 -0500 825) case TCODE_LOCK_REQUEST:
2639a6fb268e1 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:37:57 -0500 826) case TCODE_LOCK_RESPONSE:
11bf20ad02888 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 02:47:15 +0100 827) p.header[3] = cond_le32_to_cpu(buffer[3]);
2639a6fb268e1 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:37:57 -0500 828) p.header_length = 16;
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 829) p.payload_length = p.header[3] >> 16;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 830) if (p.payload_length > MAX_ASYNC_PAYLOAD) {
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 831) ar_context_abort(ctx, "invalid packet length");
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 832) return NULL;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 833) }
2639a6fb268e1 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:37:57 -0500 834) break;
2639a6fb268e1 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:37:57 -0500 835)
2639a6fb268e1 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:37:57 -0500 836) case TCODE_WRITE_RESPONSE:
2639a6fb268e1 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:37:57 -0500 837) case TCODE_READ_QUADLET_REQUEST:
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 838) case OHCI_TCODE_PHY_PACKET:
2639a6fb268e1 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:37:57 -0500 839) p.header_length = 12;
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 840) p.payload_length = 0;
2639a6fb268e1 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:37:57 -0500 841) break;
ccff962943df5 drivers/firewire/fw-ohci.c (Stefan Richter 2008-05-31 19:36:06 +0200 842)
ccff962943df5 drivers/firewire/fw-ohci.c (Stefan Richter 2008-05-31 19:36:06 +0200 843) default:
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 844) ar_context_abort(ctx, "invalid tcode");
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 845) return NULL;
2639a6fb268e1 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:37:57 -0500 846) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 847)
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 848) p.payload = (void *) buffer + p.header_length;
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 849)
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 850) /* FIXME: What to do about evt_* errors? */
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 851) length = (p.header_length + p.payload_length + 3) / 4;
11bf20ad02888 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 02:47:15 +0100 852) status = cond_le32_to_cpu(buffer[length]);
43286568adb3c drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-11 21:22:26 +0100 853) evt = (status >> 16) & 0x1f;
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 854)
43286568adb3c drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-11 21:22:26 +0100 855) p.ack = evt - 16;
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 856) p.speed = (status >> 21) & 0x7;
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 857) p.timestamp = status & 0xffff;
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 858) p.generation = ohci->request_generation;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 859)
64d2172019dcf drivers/firewire/ohci.c (Stefan Richter 2011-12-20 21:32:46 +0100 860) log_ar_at_event(ohci, 'R', p.speed, p.header, evt);
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 861)
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 862) /*
a4dc090b6cb44 drivers/firewire/ohci.c (Stefan Richter 2010-08-28 14:21:26 +0200 863) * Several controllers, notably from NEC and VIA, forget to
a4dc090b6cb44 drivers/firewire/ohci.c (Stefan Richter 2010-08-28 14:21:26 +0200 864) * write ack_complete status at PHY packet reception.
a4dc090b6cb44 drivers/firewire/ohci.c (Stefan Richter 2010-08-28 14:21:26 +0200 865) */
a4dc090b6cb44 drivers/firewire/ohci.c (Stefan Richter 2010-08-28 14:21:26 +0200 866) if (evt == OHCI1394_evt_no_status &&
a4dc090b6cb44 drivers/firewire/ohci.c (Stefan Richter 2010-08-28 14:21:26 +0200 867) (p.header[0] & 0xff) == (OHCI1394_phy_tcode << 4))
a4dc090b6cb44 drivers/firewire/ohci.c (Stefan Richter 2010-08-28 14:21:26 +0200 868) p.ack = ACK_COMPLETE;
a4dc090b6cb44 drivers/firewire/ohci.c (Stefan Richter 2010-08-28 14:21:26 +0200 869)
a4dc090b6cb44 drivers/firewire/ohci.c (Stefan Richter 2010-08-28 14:21:26 +0200 870) /*
a4dc090b6cb44 drivers/firewire/ohci.c (Stefan Richter 2010-08-28 14:21:26 +0200 871) * The OHCI bus reset handler synthesizes a PHY packet with
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 872) * the new generation number when a bus reset happens (see
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 873) * section 8.4.2.3). This helps us determine when a request
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 874) * was received and make sure we send the response in the same
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 875) * generation. We only need this for requests; for responses
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 876) * we use the unique tlabel for finding the matching
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 877) * request.
d34316a4bdcd4 drivers/firewire/fw-ohci.c (Stefan Richter 2008-04-12 22:31:25 +0200 878) *
d34316a4bdcd4 drivers/firewire/fw-ohci.c (Stefan Richter 2008-04-12 22:31:25 +0200 879) * Alas some chips sometimes emit bus reset packets with a
d34316a4bdcd4 drivers/firewire/fw-ohci.c (Stefan Richter 2008-04-12 22:31:25 +0200 880) * wrong generation. We set the correct generation for these
2d7a36e23300d drivers/firewire/ohci.c (Stephan Gatzka 2011-07-25 22:16:24 +0200 881) * at a slightly incorrect time (in bus_reset_work).
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 882) */
d34316a4bdcd4 drivers/firewire/fw-ohci.c (Stefan Richter 2008-04-12 22:31:25 +0200 883) if (evt == OHCI1394_evt_bus_reset) {
4a635593f4474 drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:58:01 +0100 884) if (!(ohci->quirks & QUIRK_RESET_PACKET))
d34316a4bdcd4 drivers/firewire/fw-ohci.c (Stefan Richter 2008-04-12 22:31:25 +0200 885) ohci->request_generation = (p.header[2] >> 16) & 0xff;
d34316a4bdcd4 drivers/firewire/fw-ohci.c (Stefan Richter 2008-04-12 22:31:25 +0200 886) } else if (ctx == &ohci->ar_request_ctx) {
2639a6fb268e1 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:37:57 -0500 887) fw_core_handle_request(&ohci->card, &p);
d34316a4bdcd4 drivers/firewire/fw-ohci.c (Stefan Richter 2008-04-12 22:31:25 +0200 888) } else {
2639a6fb268e1 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:37:57 -0500 889) fw_core_handle_response(&ohci->card, &p);
d34316a4bdcd4 drivers/firewire/fw-ohci.c (Stefan Richter 2008-04-12 22:31:25 +0200 890) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 891)
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 892) return buffer + length + 1;
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 893) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 894)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 895) static void *handle_ar_packets(struct ar_context *ctx, void *p, void *end)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 896) {
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 897) void *next;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 898)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 899) while (p < end) {
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 900) next = handle_ar_packet(ctx, p);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 901) if (!next)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 902) return p;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 903) p = next;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 904) }
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 905)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 906) return p;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 907) }
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 908)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 909) static void ar_recycle_buffers(struct ar_context *ctx, unsigned int end_buffer)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 910) {
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 911) unsigned int i;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 912)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 913) i = ar_first_buffer_index(ctx);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 914) while (i != end_buffer) {
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 915) dma_sync_single_for_device(ctx->ohci->card.device,
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 916) ar_buffer_bus(ctx, i),
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 917) PAGE_SIZE, DMA_FROM_DEVICE);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 918) ar_context_link_page(ctx, i);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 919) i = ar_next_buffer_index(i);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 920) }
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 921) }
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 922)
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 923) static void ar_context_tasklet(unsigned long data)
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 924) {
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 925) struct ar_context *ctx = (struct ar_context *)data;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 926) unsigned int end_buffer_index, end_buffer_offset;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 927) void *p, *end;
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 928)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 929) p = ctx->pointer;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 930) if (!p)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 931) return;
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 932)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 933) end_buffer_index = ar_search_last_active_buffer(ctx,
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 934) &end_buffer_offset);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 935) ar_sync_buffers_for_cpu(ctx, end_buffer_index, end_buffer_offset);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 936) end = ctx->buffer + end_buffer_index * PAGE_SIZE + end_buffer_offset;
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 937)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 938) if (end_buffer_index < ar_first_buffer_index(ctx)) {
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 939) /*
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 940) * The filled part of the overall buffer wraps around; handle
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 941) * all packets up to the buffer end here. If the last packet
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 942) * wraps around, its tail will be visible after the buffer end
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 943) * because the buffer start pages are mapped there again.
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 944) */
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 945) void *buffer_end = ctx->buffer + AR_BUFFERS * PAGE_SIZE;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 946) p = handle_ar_packets(ctx, p, buffer_end);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 947) if (p < buffer_end)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 948) goto error;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 949) /* adjust p to point back into the actual buffer */
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 950) p -= AR_BUFFERS * PAGE_SIZE;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 951) }
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 952)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 953) p = handle_ar_packets(ctx, p, end);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 954) if (p != end) {
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 955) if (p > end)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 956) ar_context_abort(ctx, "inconsistent descriptor");
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 957) goto error;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 958) }
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 959)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 960) ctx->pointer = p;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 961) ar_recycle_buffers(ctx, end_buffer_index);
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 962)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 963) return;
a1f805e5e73a8 drivers/firewire/ohci.c (Clemens Ladisch 2010-10-25 11:42:20 +0200 964)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 965) error:
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 966) ctx->pointer = NULL;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 967) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 968)
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 969) static int ar_context_init(struct ar_context *ctx, struct fw_ohci *ohci,
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 970) unsigned int descriptors_offset, u32 regs)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 971) {
c51a9868d361a drivers/firewire/ohci.c (Christoph Hellwig 2020-09-01 13:48:33 +0200 972) struct device *dev = ohci->card.device;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 973) unsigned int i;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 974) dma_addr_t dma_addr;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 975) struct page *pages[AR_BUFFERS + AR_WRAPAROUND_PAGES];
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 976) struct descriptor *d;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 977)
72e318e07e1fa drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:31 -0500 978) ctx->regs = regs;
72e318e07e1fa drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:31 -0500 979) ctx->ohci = ohci;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 980) tasklet_init(&ctx->tasklet, ar_context_tasklet, (unsigned long)ctx);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 981)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 982) for (i = 0; i < AR_BUFFERS; i++) {
c51a9868d361a drivers/firewire/ohci.c (Christoph Hellwig 2020-09-01 13:48:33 +0200 983) ctx->pages[i] = dma_alloc_pages(dev, PAGE_SIZE, &dma_addr,
c51a9868d361a drivers/firewire/ohci.c (Christoph Hellwig 2020-09-01 13:48:33 +0200 984) DMA_FROM_DEVICE, GFP_KERNEL);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 985) if (!ctx->pages[i])
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 986) goto out_of_memory;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 987) set_page_private(ctx->pages[i], dma_addr);
c51a9868d361a drivers/firewire/ohci.c (Christoph Hellwig 2020-09-01 13:48:33 +0200 988) dma_sync_single_for_device(dev, dma_addr, PAGE_SIZE,
c51a9868d361a drivers/firewire/ohci.c (Christoph Hellwig 2020-09-01 13:48:33 +0200 989) DMA_FROM_DEVICE);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 990) }
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 991)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 992) for (i = 0; i < AR_BUFFERS; i++)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 993) pages[i] = ctx->pages[i];
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 994) for (i = 0; i < AR_WRAPAROUND_PAGES; i++)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 995) pages[AR_BUFFERS + i] = ctx->pages[i];
51b04d59c2743 drivers/firewire/ohci.c (Clemens Ladisch 2014-11-16 21:08:49 +0100 996) ctx->buffer = vmap(pages, ARRAY_SIZE(pages), VM_MAP, PAGE_KERNEL);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 997) if (!ctx->buffer)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 998) goto out_of_memory;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 999)
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 1000) ctx->descriptors = ohci->misc_buffer + descriptors_offset;
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 1001) ctx->descriptors_bus = ohci->misc_buffer_bus + descriptors_offset;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 1002)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 1003) for (i = 0; i < AR_BUFFERS; i++) {
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 1004) d = &ctx->descriptors[i];
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 1005) d->req_count = cpu_to_le16(PAGE_SIZE);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 1006) d->control = cpu_to_le16(DESCRIPTOR_INPUT_MORE |
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 1007) DESCRIPTOR_STATUS |
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 1008) DESCRIPTOR_BRANCH_ALWAYS);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 1009) d->data_address = cpu_to_le32(ar_buffer_bus(ctx, i));
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 1010) d->branch_address = cpu_to_le32(ctx->descriptors_bus +
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 1011) ar_next_buffer_index(i) * sizeof(struct descriptor));
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 1012) }
32b46093a0769 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:30 -0500 1013)
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 1014) return 0;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 1015)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 1016) out_of_memory:
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 1017) ar_context_release(ctx);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 1018)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 1019) return -ENOMEM;
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 1020) }
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 1021)
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 1022) static void ar_context_run(struct ar_context *ctx)
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 1023) {
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 1024) unsigned int i;
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 1025)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 1026) for (i = 0; i < AR_BUFFERS; i++)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 1027) ar_context_link_page(ctx, i);
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 1028)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 1029) ctx->pointer = ctx->buffer;
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 1030)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 1031) reg_write(ctx->ohci, COMMAND_PTR(ctx->regs), ctx->descriptors_bus | 1);
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 1032) reg_write(ctx->ohci, CONTROL_SET(ctx->regs), CONTEXT_RUN);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1033) }
373b2edd864b8 drivers/firewire/fw-ohci.c (Stefan Richter 2007-03-04 14:45:18 +0100 1034)
53dca51175cc2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:47:04 +0100 1035) static struct descriptor *find_branch_descriptor(struct descriptor *d, int z)
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 1036) {
0ff8fbc61727c drivers/firewire/ohci.c (Clemens Ladisch 2011-04-12 07:54:59 +0200 1037) __le16 branch;
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 1038)
0ff8fbc61727c drivers/firewire/ohci.c (Clemens Ladisch 2011-04-12 07:54:59 +0200 1039) branch = d->control & cpu_to_le16(DESCRIPTOR_BRANCH_ALWAYS);
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 1040)
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 1041) /* figure out which descriptor the branch address goes in */
0ff8fbc61727c drivers/firewire/ohci.c (Clemens Ladisch 2011-04-12 07:54:59 +0200 1042) if (z == 2 && branch == cpu_to_le16(DESCRIPTOR_BRANCH_ALWAYS))
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 1043) return d;
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 1044) else
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 1045) return d + z - 1;
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 1046) }
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 1047)
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1048) static void context_tasklet(unsigned long data)
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1049) {
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1050) struct context *ctx = (struct context *) data;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1051) struct descriptor *d, *last;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1052) u32 address;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1053) int z;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1054) struct descriptor_buffer *desc;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1055)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1056) desc = list_entry(ctx->buffer_list.next,
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1057) struct descriptor_buffer, list);
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1058) last = ctx->last;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1059) while (last->branch_address != 0) {
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1060) struct descriptor_buffer *old_desc = desc;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1061) address = le32_to_cpu(last->branch_address);
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1062) z = address & 0xf;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1063) address &= ~0xf;
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 1064) ctx->current_bus = address;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1065)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1066) /* If the branch address points to a buffer outside of the
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1067) * current buffer, advance to the next buffer. */
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1068) if (address < desc->buffer_bus ||
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1069) address >= desc->buffer_bus + desc->used)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1070) desc = list_entry(desc->list.next,
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1071) struct descriptor_buffer, list);
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1072) d = desc->buffer + (address - desc->buffer_bus) / sizeof(*d);
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 1073) last = find_branch_descriptor(d, z);
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1074)
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1075) if (!ctx->callback(ctx, d, last))
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1076) break;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1077)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1078) if (old_desc != desc) {
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1079) /* If we've advanced to the next buffer, move the
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1080) * previous buffer to the free list. */
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1081) unsigned long flags;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1082) old_desc->used = 0;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1083) spin_lock_irqsave(&ctx->ohci->lock, flags);
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1084) list_move_tail(&old_desc->list, &ctx->buffer_list);
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1085) spin_unlock_irqrestore(&ctx->ohci->lock, flags);
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1086) }
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1087) ctx->last = last;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1088) }
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1089) }
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1090)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1091) /*
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1092) * Allocate a new buffer and add it to the list of free buffers for this
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1093) * context. Must be called with ohci->lock held.
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1094) */
53dca51175cc2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:47:04 +0100 1095) static int context_add_buffer(struct context *ctx)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1096) {
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1097) struct descriptor_buffer *desc;
3f649ab728cda drivers/firewire/ohci.c (Kees Cook 2020-06-03 13:09:38 -0700 1098) dma_addr_t bus_addr;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1099) int offset;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1100)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1101) /*
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1102) * 16MB of descriptors should be far more than enough for any DMA
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1103) * program. This will catch run-away userspace or DoS attacks.
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1104) */
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1105) if (ctx->total_allocation >= 16*1024*1024)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1106) return -ENOMEM;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1107)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1108) desc = dma_alloc_coherent(ctx->ohci->card.device, PAGE_SIZE,
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1109) &bus_addr, GFP_ATOMIC);
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1110) if (!desc)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1111) return -ENOMEM;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1112)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1113) offset = (void *)&desc->buffer - (void *)desc;
188775181bc05 drivers/firewire/ohci.c (Hector Martin 2017-11-03 20:28:57 +0900 1114) /*
188775181bc05 drivers/firewire/ohci.c (Hector Martin 2017-11-03 20:28:57 +0900 1115) * Some controllers, like JMicron ones, always issue 0x20-byte DMA reads
188775181bc05 drivers/firewire/ohci.c (Hector Martin 2017-11-03 20:28:57 +0900 1116) * for descriptors, even 0x10-byte ones. This can cause page faults when
188775181bc05 drivers/firewire/ohci.c (Hector Martin 2017-11-03 20:28:57 +0900 1117) * an IOMMU is in use and the oversized read crosses a page boundary.
188775181bc05 drivers/firewire/ohci.c (Hector Martin 2017-11-03 20:28:57 +0900 1118) * Work around this by always leaving at least 0x10 bytes of padding.
188775181bc05 drivers/firewire/ohci.c (Hector Martin 2017-11-03 20:28:57 +0900 1119) */
188775181bc05 drivers/firewire/ohci.c (Hector Martin 2017-11-03 20:28:57 +0900 1120) desc->buffer_size = PAGE_SIZE - offset - 0x10;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1121) desc->buffer_bus = bus_addr + offset;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1122) desc->used = 0;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1123)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1124) list_add_tail(&desc->list, &ctx->buffer_list);
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1125) ctx->total_allocation += PAGE_SIZE;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1126)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1127) return 0;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1128) }
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1129)
53dca51175cc2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:47:04 +0100 1130) static int context_init(struct context *ctx, struct fw_ohci *ohci,
53dca51175cc2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:47:04 +0100 1131) u32 regs, descriptor_callback_t callback)
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1132) {
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1133) ctx->ohci = ohci;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1134) ctx->regs = regs;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1135) ctx->total_allocation = 0;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1136)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1137) INIT_LIST_HEAD(&ctx->buffer_list);
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1138) if (context_add_buffer(ctx) < 0)
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1139) return -ENOMEM;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1140)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1141) ctx->buffer_tail = list_entry(ctx->buffer_list.next,
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1142) struct descriptor_buffer, list);
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1143)
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1144) tasklet_init(&ctx->tasklet, context_tasklet, (unsigned long)ctx);
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1145) ctx->callback = callback;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1146)
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 1147) /*
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 1148) * We put a dummy descriptor in the buffer that has a NULL
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1149) * branch address and looks like it's been sent. That way we
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1150) * have a descriptor to append DMA programs to.
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 1151) */
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1152) memset(ctx->buffer_tail->buffer, 0, sizeof(*ctx->buffer_tail->buffer));
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1153) ctx->buffer_tail->buffer->control = cpu_to_le16(DESCRIPTOR_OUTPUT_LAST);
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1154) ctx->buffer_tail->buffer->transfer_status = cpu_to_le16(0x8011);
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1155) ctx->buffer_tail->used += sizeof(*ctx->buffer_tail->buffer);
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1156) ctx->last = ctx->buffer_tail->buffer;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1157) ctx->prev = ctx->buffer_tail->buffer;
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 1158) ctx->prev_z = 1;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1159)
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1160) return 0;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1161) }
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1162)
53dca51175cc2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:47:04 +0100 1163) static void context_release(struct context *ctx)
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1164) {
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1165) struct fw_card *card = &ctx->ohci->card;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1166) struct descriptor_buffer *desc, *tmp;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1167)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1168) list_for_each_entry_safe(desc, tmp, &ctx->buffer_list, list)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1169) dma_free_coherent(card->device, PAGE_SIZE, desc,
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1170) desc->buffer_bus -
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1171) ((void *)&desc->buffer - (void *)desc));
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1172) }
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1173)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1174) /* Must be called with ohci->lock held */
53dca51175cc2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:47:04 +0100 1175) static struct descriptor *context_get_descriptors(struct context *ctx,
53dca51175cc2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:47:04 +0100 1176) int z, dma_addr_t *d_bus)
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1177) {
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1178) struct descriptor *d = NULL;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1179) struct descriptor_buffer *desc = ctx->buffer_tail;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1180)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1181) if (z * sizeof(*d) > desc->buffer_size)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1182) return NULL;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1183)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1184) if (z * sizeof(*d) > desc->buffer_size - desc->used) {
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1185) /* No room for the descriptor in this buffer, so advance to the
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1186) * next one. */
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1187)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1188) if (desc->list.next == &ctx->buffer_list) {
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1189) /* If there is no free buffer next in the list,
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1190) * allocate one. */
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1191) if (context_add_buffer(ctx) < 0)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1192) return NULL;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1193) }
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1194) desc = list_entry(desc->list.next,
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1195) struct descriptor_buffer, list);
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1196) ctx->buffer_tail = desc;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1197) }
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1198)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1199) d = desc->buffer + desc->used / sizeof(*d);
2d826cc5c791b drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-09 19:23:14 -0400 1200) memset(d, 0, z * sizeof(*d));
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1201) *d_bus = desc->buffer_bus + desc->used;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1202)
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1203) return d;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1204) }
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1205)
295e3feb92e50 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:40 -0500 1206) static void context_run(struct context *ctx, u32 extra)
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1207) {
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1208) struct fw_ohci *ohci = ctx->ohci;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1209)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 1210) reg_write(ohci, COMMAND_PTR(ctx->regs),
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1211) le32_to_cpu(ctx->last->branch_address));
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 1212) reg_write(ohci, CONTROL_CLEAR(ctx->regs), ~0);
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 1213) reg_write(ohci, CONTROL_SET(ctx->regs), CONTEXT_RUN | extra);
386a4153a2c14 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:42:46 +0100 1214) ctx->running = true;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1215) flush_writes(ohci);
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1216) }
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1217)
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1218) static void context_append(struct context *ctx,
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1219) struct descriptor *d, int z, int extra)
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1220) {
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1221) dma_addr_t d_bus;
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1222) struct descriptor_buffer *desc = ctx->buffer_tail;
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 1223) struct descriptor *d_branch;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1224)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1225) d_bus = desc->buffer_bus + (d - desc->buffer) * sizeof(*d);
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1226)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 1227) desc->used += (z + extra) * sizeof(*d);
071595ebdc66d drivers/firewire/ohci.c (Stefan Richter 2010-07-27 13:20:33 +0200 1228)
071595ebdc66d drivers/firewire/ohci.c (Stefan Richter 2010-07-27 13:20:33 +0200 1229) wmb(); /* finish init of new descriptors before branch_address update */
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 1230)
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 1231) d_branch = find_branch_descriptor(ctx->prev, ctx->prev_z);
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 1232) d_branch->branch_address = cpu_to_le32(d_bus | z);
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 1233)
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 1234) /*
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 1235) * VT6306 incorrectly checks only the single descriptor at the
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 1236) * CommandPtr when the wake bit is written, so if it's a
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 1237) * multi-descriptor block starting with an INPUT_MORE, put a copy of
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 1238) * the branch address in the first descriptor.
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 1239) *
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 1240) * Not doing this for transmit contexts since not sure how it interacts
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 1241) * with skip addresses.
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 1242) */
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 1243) if (unlikely(ctx->ohci->quirks & QUIRK_IR_WAKE) &&
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 1244) d_branch != ctx->prev &&
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 1245) (ctx->prev->control & cpu_to_le16(DESCRIPTOR_CMD)) ==
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 1246) cpu_to_le16(DESCRIPTOR_INPUT_MORE)) {
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 1247) ctx->prev->branch_address = cpu_to_le32(d_bus | z);
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 1248) }
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 1249)
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 1250) ctx->prev = d;
be8dcab942e1c drivers/firewire/ohci.c (Andy Leiserson 2013-04-24 09:10:32 -0700 1251) ctx->prev_z = z;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1252) }
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1253)
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1254) static void context_stop(struct context *ctx)
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1255) {
64d2172019dcf drivers/firewire/ohci.c (Stefan Richter 2011-12-20 21:32:46 +0100 1256) struct fw_ohci *ohci = ctx->ohci;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1257) u32 reg;
b82956685aab4 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:42 -0500 1258) int i;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1259)
64d2172019dcf drivers/firewire/ohci.c (Stefan Richter 2011-12-20 21:32:46 +0100 1260) reg_write(ohci, CONTROL_CLEAR(ctx->regs), CONTEXT_RUN);
386a4153a2c14 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:42:46 +0100 1261) ctx->running = false;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1262)
9ef28ccd59a23 drivers/firewire/ohci.c (Stefan Richter 2011-06-12 14:30:57 +0200 1263) for (i = 0; i < 1000; i++) {
64d2172019dcf drivers/firewire/ohci.c (Stefan Richter 2011-12-20 21:32:46 +0100 1264) reg = reg_read(ohci, CONTROL_SET(ctx->regs));
b82956685aab4 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:42 -0500 1265) if ((reg & CONTEXT_ACTIVE) == 0)
b006854955254 drivers/firewire/fw-ohci.c (Stefan Richter 2009-01-05 20:43:23 +0100 1266) return;
b82956685aab4 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:42 -0500 1267)
9ef28ccd59a23 drivers/firewire/ohci.c (Stefan Richter 2011-06-12 14:30:57 +0200 1268) if (i)
9ef28ccd59a23 drivers/firewire/ohci.c (Stefan Richter 2011-06-12 14:30:57 +0200 1269) udelay(10);
b82956685aab4 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:42 -0500 1270) }
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 1271) ohci_err(ohci, "DMA context still active (0x%08x)\n", reg);
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 1272) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1273)
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1274) struct driver_data {
da28947e7e360 drivers/firewire/ohci.c (Clemens Ladisch 2011-04-11 09:57:54 +0200 1275) u8 inline_data[8];
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1276) struct fw_packet *packet;
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1277) };
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1278)
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 1279) /*
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 1280) * This function apppends a packet to the DMA queue for transmission.
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1281) * Must always be called with the ochi->lock held to ensure proper
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 1282) * generation handling and locking around packet queue manipulation.
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 1283) */
53dca51175cc2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:47:04 +0100 1284) static int at_context_queue_packet(struct context *ctx,
53dca51175cc2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:47:04 +0100 1285) struct fw_packet *packet)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1286) {
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1287) struct fw_ohci *ohci = ctx->ohci;
3f649ab728cda drivers/firewire/ohci.c (Kees Cook 2020-06-03 13:09:38 -0700 1288) dma_addr_t d_bus, payload_bus;
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1289) struct driver_data *driver_data;
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1290) struct descriptor *d, *last;
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1291) __le32 *header;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1292) int z, tcode;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1293)
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1294) d = context_get_descriptors(ctx, 4, &d_bus);
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1295) if (d == NULL) {
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1296) packet->ack = RCODE_SEND_ERROR;
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1297) return -1;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1298) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1299)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 1300) d[0].control = cpu_to_le16(DESCRIPTOR_KEY_IMMEDIATE);
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1301) d[0].res_count = cpu_to_le16(packet->timestamp);
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1302)
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 1303) /*
b3834be5c42a5 drivers/firewire/ohci.c (Adam Buchbinder 2012-09-19 21:48:02 -0400 1304) * The DMA format for asynchronous link packets is different
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1305) * from the IEEE1394 layout, so shift the fields around
5b06db166c4d3 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:47 +0100 1306) * accordingly.
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 1307) */
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1308)
5b06db166c4d3 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:47 +0100 1309) tcode = (packet->header[0] >> 4) & 0x0f;
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1310) header = (__le32 *) &d[1];
5b06db166c4d3 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:47 +0100 1311) switch (tcode) {
5b06db166c4d3 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:47 +0100 1312) case TCODE_WRITE_QUADLET_REQUEST:
5b06db166c4d3 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:47 +0100 1313) case TCODE_WRITE_BLOCK_REQUEST:
5b06db166c4d3 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:47 +0100 1314) case TCODE_WRITE_RESPONSE:
5b06db166c4d3 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:47 +0100 1315) case TCODE_READ_QUADLET_REQUEST:
5b06db166c4d3 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:47 +0100 1316) case TCODE_READ_BLOCK_REQUEST:
5b06db166c4d3 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:47 +0100 1317) case TCODE_READ_QUADLET_RESPONSE:
5b06db166c4d3 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:47 +0100 1318) case TCODE_READ_BLOCK_RESPONSE:
5b06db166c4d3 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:47 +0100 1319) case TCODE_LOCK_REQUEST:
5b06db166c4d3 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:47 +0100 1320) case TCODE_LOCK_RESPONSE:
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1321) header[0] = cpu_to_le32((packet->header[0] & 0xffff) |
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1322) (packet->speed << 16));
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1323) header[1] = cpu_to_le32((packet->header[1] & 0xffff) |
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1324) (packet->header[0] & 0xffff0000));
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1325) header[2] = cpu_to_le32(packet->header[2]);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1326)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1327) if (TCODE_IS_BLOCK_PACKET(tcode))
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1328) header[3] = cpu_to_le32(packet->header[3]);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1329) else
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1330) header[3] = (__force __le32) packet->header[3];
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1331)
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1332) d[0].req_count = cpu_to_le16(packet->header_length);
f8c2287c65f8f drivers/firewire/fw-ohci.c (Jay Fenlason 2009-03-05 19:08:40 +0100 1333) break;
f8c2287c65f8f drivers/firewire/fw-ohci.c (Jay Fenlason 2009-03-05 19:08:40 +0100 1334)
5b06db166c4d3 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:47 +0100 1335) case TCODE_LINK_INTERNAL:
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1336) header[0] = cpu_to_le32((OHCI1394_phy_tcode << 4) |
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1337) (packet->speed << 16));
5b06db166c4d3 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:47 +0100 1338) header[1] = cpu_to_le32(packet->header[1]);
5b06db166c4d3 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:47 +0100 1339) header[2] = cpu_to_le32(packet->header[2]);
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1340) d[0].req_count = cpu_to_le16(12);
cc550216ae9a2 drivers/firewire/ohci.c (Stefan Richter 2010-07-18 13:00:50 +0200 1341)
5b06db166c4d3 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:47 +0100 1342) if (is_ping_packet(&packet->header[1]))
cc550216ae9a2 drivers/firewire/ohci.c (Stefan Richter 2010-07-18 13:00:50 +0200 1343) d[0].control |= cpu_to_le16(DESCRIPTOR_PING);
f8c2287c65f8f drivers/firewire/fw-ohci.c (Jay Fenlason 2009-03-05 19:08:40 +0100 1344) break;
f8c2287c65f8f drivers/firewire/fw-ohci.c (Jay Fenlason 2009-03-05 19:08:40 +0100 1345)
5b06db166c4d3 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:47 +0100 1346) case TCODE_STREAM_DATA:
f8c2287c65f8f drivers/firewire/fw-ohci.c (Jay Fenlason 2009-03-05 19:08:40 +0100 1347) header[0] = cpu_to_le32((packet->header[0] & 0xffff) |
f8c2287c65f8f drivers/firewire/fw-ohci.c (Jay Fenlason 2009-03-05 19:08:40 +0100 1348) (packet->speed << 16));
f8c2287c65f8f drivers/firewire/fw-ohci.c (Jay Fenlason 2009-03-05 19:08:40 +0100 1349) header[1] = cpu_to_le32(packet->header[0] & 0xffff0000);
f8c2287c65f8f drivers/firewire/fw-ohci.c (Jay Fenlason 2009-03-05 19:08:40 +0100 1350) d[0].req_count = cpu_to_le16(8);
f8c2287c65f8f drivers/firewire/fw-ohci.c (Jay Fenlason 2009-03-05 19:08:40 +0100 1351) break;
f8c2287c65f8f drivers/firewire/fw-ohci.c (Jay Fenlason 2009-03-05 19:08:40 +0100 1352)
f8c2287c65f8f drivers/firewire/fw-ohci.c (Jay Fenlason 2009-03-05 19:08:40 +0100 1353) default:
f8c2287c65f8f drivers/firewire/fw-ohci.c (Jay Fenlason 2009-03-05 19:08:40 +0100 1354) /* BUG(); */
f8c2287c65f8f drivers/firewire/fw-ohci.c (Jay Fenlason 2009-03-05 19:08:40 +0100 1355) packet->ack = RCODE_SEND_ERROR;
f8c2287c65f8f drivers/firewire/fw-ohci.c (Jay Fenlason 2009-03-05 19:08:40 +0100 1356) return -1;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1357) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1358)
da28947e7e360 drivers/firewire/ohci.c (Clemens Ladisch 2011-04-11 09:57:54 +0200 1359) BUILD_BUG_ON(sizeof(struct driver_data) > sizeof(struct descriptor));
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1360) driver_data = (struct driver_data *) &d[3];
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1361) driver_data->packet = packet;
20d11673112f7 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-26 19:18:19 -0400 1362) packet->driver_data = driver_data;
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 1363)
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1364) if (packet->payload_length > 0) {
da28947e7e360 drivers/firewire/ohci.c (Clemens Ladisch 2011-04-11 09:57:54 +0200 1365) if (packet->payload_length > sizeof(driver_data->inline_data)) {
da28947e7e360 drivers/firewire/ohci.c (Clemens Ladisch 2011-04-11 09:57:54 +0200 1366) payload_bus = dma_map_single(ohci->card.device,
da28947e7e360 drivers/firewire/ohci.c (Clemens Ladisch 2011-04-11 09:57:54 +0200 1367) packet->payload,
da28947e7e360 drivers/firewire/ohci.c (Clemens Ladisch 2011-04-11 09:57:54 +0200 1368) packet->payload_length,
da28947e7e360 drivers/firewire/ohci.c (Clemens Ladisch 2011-04-11 09:57:54 +0200 1369) DMA_TO_DEVICE);
da28947e7e360 drivers/firewire/ohci.c (Clemens Ladisch 2011-04-11 09:57:54 +0200 1370) if (dma_mapping_error(ohci->card.device, payload_bus)) {
da28947e7e360 drivers/firewire/ohci.c (Clemens Ladisch 2011-04-11 09:57:54 +0200 1371) packet->ack = RCODE_SEND_ERROR;
da28947e7e360 drivers/firewire/ohci.c (Clemens Ladisch 2011-04-11 09:57:54 +0200 1372) return -1;
da28947e7e360 drivers/firewire/ohci.c (Clemens Ladisch 2011-04-11 09:57:54 +0200 1373) }
da28947e7e360 drivers/firewire/ohci.c (Clemens Ladisch 2011-04-11 09:57:54 +0200 1374) packet->payload_bus = payload_bus;
da28947e7e360 drivers/firewire/ohci.c (Clemens Ladisch 2011-04-11 09:57:54 +0200 1375) packet->payload_mapped = true;
da28947e7e360 drivers/firewire/ohci.c (Clemens Ladisch 2011-04-11 09:57:54 +0200 1376) } else {
da28947e7e360 drivers/firewire/ohci.c (Clemens Ladisch 2011-04-11 09:57:54 +0200 1377) memcpy(driver_data->inline_data, packet->payload,
da28947e7e360 drivers/firewire/ohci.c (Clemens Ladisch 2011-04-11 09:57:54 +0200 1378) packet->payload_length);
da28947e7e360 drivers/firewire/ohci.c (Clemens Ladisch 2011-04-11 09:57:54 +0200 1379) payload_bus = d_bus + 3 * sizeof(*d);
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1380) }
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1381)
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1382) d[2].req_count = cpu_to_le16(packet->payload_length);
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1383) d[2].data_address = cpu_to_le32(payload_bus);
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1384) last = &d[2];
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1385) z = 3;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1386) } else {
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1387) last = &d[0];
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1388) z = 2;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1389) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1390)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 1391) last->control |= cpu_to_le16(DESCRIPTOR_OUTPUT_LAST |
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 1392) DESCRIPTOR_IRQ_ALWAYS |
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 1393) DESCRIPTOR_BRANCH_ALWAYS);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1394)
b6258fc1feabd drivers/firewire/ohci.c (Stefan Richter 2011-02-26 15:08:35 +0100 1395) /* FIXME: Document how the locking works. */
b6258fc1feabd drivers/firewire/ohci.c (Stefan Richter 2011-02-26 15:08:35 +0100 1396) if (ohci->generation != packet->generation) {
19593ffdb6daa drivers/firewire/ohci.c (Stefan Richter 2009-10-14 20:40:10 +0200 1397) if (packet->payload_mapped)
ab88ca488b8af drivers/firewire/fw-ohci.c (Stefan Richter 2007-08-29 19:40:28 +0200 1398) dma_unmap_single(ohci->card.device, payload_bus,
ab88ca488b8af drivers/firewire/fw-ohci.c (Stefan Richter 2007-08-29 19:40:28 +0200 1399) packet->payload_length, DMA_TO_DEVICE);
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1400) packet->ack = RCODE_GENERATION;
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1401) return -1;
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1402) }
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1403)
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1404) context_append(ctx, d, z, 4 - z);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1405)
dd6254e5c0efe drivers/firewire/ohci.c (Clemens Ladisch 2011-05-16 08:10:10 +0200 1406) if (ctx->running)
13882a82ee164 drivers/firewire/ohci.c (Clemens Ladisch 2011-05-02 09:33:56 +0200 1407) reg_write(ohci, CONTROL_SET(ctx->regs), CONTEXT_WAKE);
dd6254e5c0efe drivers/firewire/ohci.c (Clemens Ladisch 2011-05-16 08:10:10 +0200 1408) else
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1409) context_run(ctx, 0);
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1410)
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1411) return 0;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1412) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1413)
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1414) static void at_context_flush(struct context *ctx)
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1415) {
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1416) tasklet_disable(&ctx->tasklet);
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1417)
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1418) ctx->flushing = true;
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1419) context_tasklet((unsigned long)ctx);
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1420) ctx->flushing = false;
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1421)
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1422) tasklet_enable(&ctx->tasklet);
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1423) }
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1424)
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1425) static int handle_at_packet(struct context *context,
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1426) struct descriptor *d,
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1427) struct descriptor *last)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1428) {
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1429) struct driver_data *driver_data;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1430) struct fw_packet *packet;
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1431) struct fw_ohci *ohci = context->ohci;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1432) int evt;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1433)
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1434) if (last->transfer_status == 0 && !context->flushing)
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1435) /* This descriptor isn't done yet, stop iteration. */
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1436) return 0;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1437)
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1438) driver_data = (struct driver_data *) &d[3];
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1439) packet = driver_data->packet;
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1440) if (packet == NULL)
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1441) /* This packet was cancelled, just continue. */
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1442) return 1;
730c32f58ba81 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:32 -0500 1443)
19593ffdb6daa drivers/firewire/ohci.c (Stefan Richter 2009-10-14 20:40:10 +0200 1444) if (packet->payload_mapped)
1d1dc5e83f329 drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-10 00:20:38 +0100 1445) dma_unmap_single(ohci->card.device, packet->payload_bus,
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1446) packet->payload_length, DMA_TO_DEVICE);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1447)
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1448) evt = le16_to_cpu(last->transfer_status) & 0x1f;
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1449) packet->timestamp = le16_to_cpu(last->res_count);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1450)
64d2172019dcf drivers/firewire/ohci.c (Stefan Richter 2011-12-20 21:32:46 +0100 1451) log_ar_at_event(ohci, 'T', packet->speed, packet->header, evt);
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 1452)
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1453) switch (evt) {
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1454) case OHCI1394_evt_timeout:
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1455) /* Async response transmit timed out. */
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1456) packet->ack = RCODE_CANCELLED;
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1457) break;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1458)
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1459) case OHCI1394_evt_flushed:
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 1460) /*
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 1461) * The packet was flushed should give same error as
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 1462) * when we try to use a stale generation count.
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 1463) */
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1464) packet->ack = RCODE_GENERATION;
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1465) break;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1466)
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1467) case OHCI1394_evt_missing_ack:
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1468) if (context->flushing)
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1469) packet->ack = RCODE_GENERATION;
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1470) else {
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1471) /*
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1472) * Using a valid (current) generation count, but the
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1473) * node is not on the bus or not sending acks.
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1474) */
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1475) packet->ack = RCODE_NO_ACK;
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1476) }
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1477) break;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1478)
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1479) case ACK_COMPLETE + 0x10:
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1480) case ACK_PENDING + 0x10:
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1481) case ACK_BUSY_X + 0x10:
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1482) case ACK_BUSY_A + 0x10:
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1483) case ACK_BUSY_B + 0x10:
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1484) case ACK_DATA_ERROR + 0x10:
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1485) case ACK_TYPE_ERROR + 0x10:
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1486) packet->ack = evt - 0x10;
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1487) break;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1488)
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1489) case OHCI1394_evt_no_status:
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1490) if (context->flushing) {
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1491) packet->ack = RCODE_GENERATION;
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1492) break;
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1493) }
df561f6688fef drivers/firewire/ohci.c (Gustavo A. R. Silva 2020-08-23 17:36:59 -0500 1494) fallthrough;
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1495)
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1496) default:
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1497) packet->ack = RCODE_SEND_ERROR;
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1498) break;
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1499) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1500)
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1501) packet->callback(packet, &ohci->card, packet->ack);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1502)
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1503) return 1;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1504) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1505)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 1506) #define HEADER_GET_DESTINATION(q) (((q) >> 16) & 0xffff)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 1507) #define HEADER_GET_TCODE(q) (((q) >> 4) & 0x0f)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 1508) #define HEADER_GET_OFFSET_HIGH(q) (((q) >> 0) & 0xffff)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 1509) #define HEADER_GET_DATA_LENGTH(q) (((q) >> 16) & 0xffff)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 1510) #define HEADER_GET_EXTENDED_TCODE(q) (((q) >> 0) & 0xffff)
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1511)
53dca51175cc2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:47:04 +0100 1512) static void handle_local_rom(struct fw_ohci *ohci,
53dca51175cc2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:47:04 +0100 1513) struct fw_packet *packet, u32 csr)
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1514) {
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1515) struct fw_packet response;
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1516) int tcode, length, i;
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1517)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 1518) tcode = HEADER_GET_TCODE(packet->header[0]);
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1519) if (TCODE_IS_BLOCK_PACKET(tcode))
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 1520) length = HEADER_GET_DATA_LENGTH(packet->header[3]);
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1521) else
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1522) length = 4;
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1523)
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1524) i = csr - CSR_CONFIG_ROM;
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1525) if (i + length > CONFIG_ROM_SIZE) {
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1526) fw_fill_response(&response, packet->header,
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1527) RCODE_ADDRESS_ERROR, NULL, 0);
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1528) } else if (!TCODE_IS_READ_REQUEST(tcode)) {
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1529) fw_fill_response(&response, packet->header,
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1530) RCODE_TYPE_ERROR, NULL, 0);
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1531) } else {
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1532) fw_fill_response(&response, packet->header, RCODE_COMPLETE,
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1533) (void *) ohci->config_rom + i, length);
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1534) }
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1535)
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1536) fw_core_handle_response(&ohci->card, &response);
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1537) }
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1538)
53dca51175cc2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:47:04 +0100 1539) static void handle_local_lock(struct fw_ohci *ohci,
53dca51175cc2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:47:04 +0100 1540) struct fw_packet *packet, u32 csr)
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1541) {
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1542) struct fw_packet response;
e1393667be574 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-12 10:35:44 +0200 1543) int tcode, length, ext_tcode, sel, try;
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1544) __be32 *payload, lock_old;
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1545) u32 lock_arg, lock_data;
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1546)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 1547) tcode = HEADER_GET_TCODE(packet->header[0]);
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 1548) length = HEADER_GET_DATA_LENGTH(packet->header[3]);
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1549) payload = packet->payload;
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 1550) ext_tcode = HEADER_GET_EXTENDED_TCODE(packet->header[3]);
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1551)
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1552) if (tcode == TCODE_LOCK_REQUEST &&
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1553) ext_tcode == EXTCODE_COMPARE_SWAP && length == 8) {
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1554) lock_arg = be32_to_cpu(payload[0]);
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1555) lock_data = be32_to_cpu(payload[1]);
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1556) } else if (tcode == TCODE_READ_QUADLET_REQUEST) {
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1557) lock_arg = 0;
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1558) lock_data = 0;
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1559) } else {
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1560) fw_fill_response(&response, packet->header,
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1561) RCODE_TYPE_ERROR, NULL, 0);
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1562) goto out;
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1563) }
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1564)
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1565) sel = (csr - CSR_BUS_MANAGER_ID) / 4;
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1566) reg_write(ohci, OHCI1394_CSRData, lock_data);
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1567) reg_write(ohci, OHCI1394_CSRCompareData, lock_arg);
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1568) reg_write(ohci, OHCI1394_CSRControl, sel);
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1569)
e1393667be574 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-12 10:35:44 +0200 1570) for (try = 0; try < 20; try++)
e1393667be574 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-12 10:35:44 +0200 1571) if (reg_read(ohci, OHCI1394_CSRControl) & 0x80000000) {
e1393667be574 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-12 10:35:44 +0200 1572) lock_old = cpu_to_be32(reg_read(ohci,
e1393667be574 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-12 10:35:44 +0200 1573) OHCI1394_CSRData));
e1393667be574 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-12 10:35:44 +0200 1574) fw_fill_response(&response, packet->header,
e1393667be574 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-12 10:35:44 +0200 1575) RCODE_COMPLETE,
e1393667be574 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-12 10:35:44 +0200 1576) &lock_old, sizeof(lock_old));
e1393667be574 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-12 10:35:44 +0200 1577) goto out;
e1393667be574 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-12 10:35:44 +0200 1578) }
e1393667be574 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-12 10:35:44 +0200 1579)
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 1580) ohci_err(ohci, "swap not done (CSR lock timeout)\n");
e1393667be574 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-12 10:35:44 +0200 1581) fw_fill_response(&response, packet->header, RCODE_BUSY, NULL, 0);
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1582)
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1583) out:
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1584) fw_core_handle_response(&ohci->card, &response);
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1585) }
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1586)
53dca51175cc2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:47:04 +0100 1587) static void handle_local_request(struct context *ctx, struct fw_packet *packet)
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1588) {
2608203daf5f8 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-12 10:35:30 +0200 1589) u64 offset, csr;
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1590)
473d28c730e2d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:55 -0500 1591) if (ctx == &ctx->ohci->at_request_ctx) {
473d28c730e2d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:55 -0500 1592) packet->ack = ACK_PENDING;
473d28c730e2d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:55 -0500 1593) packet->callback(packet, &ctx->ohci->card, packet->ack);
473d28c730e2d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:55 -0500 1594) }
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1595)
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1596) offset =
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1597) ((unsigned long long)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 1598) HEADER_GET_OFFSET_HIGH(packet->header[1]) << 32) |
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1599) packet->header[2];
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1600) csr = offset - CSR_REGISTER_BASE;
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1601)
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1602) /* Handle config rom reads. */
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1603) if (csr >= CSR_CONFIG_ROM && csr < CSR_CONFIG_ROM_END)
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1604) handle_local_rom(ctx->ohci, packet, csr);
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1605) else switch (csr) {
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1606) case CSR_BUS_MANAGER_ID:
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1607) case CSR_BANDWIDTH_AVAILABLE:
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1608) case CSR_CHANNELS_AVAILABLE_HI:
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1609) case CSR_CHANNELS_AVAILABLE_LO:
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1610) handle_local_lock(ctx->ohci, packet, csr);
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1611) break;
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1612) default:
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1613) if (ctx == &ctx->ohci->at_request_ctx)
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1614) fw_core_handle_request(&ctx->ohci->card, packet);
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1615) else
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1616) fw_core_handle_response(&ctx->ohci->card, packet);
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1617) break;
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1618) }
473d28c730e2d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:55 -0500 1619)
473d28c730e2d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:55 -0500 1620) if (ctx == &ctx->ohci->at_response_ctx) {
473d28c730e2d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:55 -0500 1621) packet->ack = ACK_COMPLETE;
473d28c730e2d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:55 -0500 1622) packet->callback(packet, &ctx->ohci->card, packet->ack);
473d28c730e2d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:55 -0500 1623) }
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1624) }
e636fe2576be5 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:04 -0500 1625)
53dca51175cc2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:47:04 +0100 1626) static void at_context_transmit(struct context *ctx, struct fw_packet *packet)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1627) {
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1628) unsigned long flags;
2dbd7d7e2327b drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:45:45 +0100 1629) int ret;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1630)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1631) spin_lock_irqsave(&ctx->ohci->lock, flags);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1632)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 1633) if (HEADER_GET_DESTINATION(packet->header[0]) == ctx->ohci->node_id &&
e636fe2576be5 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:04 -0500 1634) ctx->ohci->generation == packet->generation) {
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1635) spin_unlock_irqrestore(&ctx->ohci->lock, flags);
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1636) handle_local_request(ctx, packet);
93c4cceb963eb drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:26 -0500 1637) return;
e636fe2576be5 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:04 -0500 1638) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1639)
2dbd7d7e2327b drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:45:45 +0100 1640) ret = at_context_queue_packet(ctx, packet);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1641) spin_unlock_irqrestore(&ctx->ohci->lock, flags);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1642)
2dbd7d7e2327b drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:45:45 +0100 1643) if (ret < 0)
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1644) packet->callback(packet, &ctx->ohci->card, packet->ack);
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 1645)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1646) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1647)
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1648) static void detect_dead_context(struct fw_ohci *ohci,
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1649) const char *name, unsigned int regs)
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1650) {
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1651) u32 ctl;
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1652)
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1653) ctl = reg_read(ohci, CONTROL_SET(regs));
cfda62baa474b drivers/firewire/ohci.c (Stefan Richter 2012-03-04 21:34:21 +0100 1654) if (ctl & CONTEXT_DEAD)
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 1655) ohci_err(ohci, "DMA context %s has stopped, error code: %s\n",
64d2172019dcf drivers/firewire/ohci.c (Stefan Richter 2011-12-20 21:32:46 +0100 1656) name, evts[ctl & 0x1f]);
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1657) }
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1658)
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1659) static void handle_dead_contexts(struct fw_ohci *ohci)
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1660) {
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1661) unsigned int i;
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1662) char name[8];
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1663)
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1664) detect_dead_context(ohci, "ATReq", OHCI1394_AsReqTrContextBase);
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1665) detect_dead_context(ohci, "ATRsp", OHCI1394_AsRspTrContextBase);
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1666) detect_dead_context(ohci, "ARReq", OHCI1394_AsReqRcvContextBase);
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1667) detect_dead_context(ohci, "ARRsp", OHCI1394_AsRspRcvContextBase);
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1668) for (i = 0; i < 32; ++i) {
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1669) if (!(ohci->it_context_support & (1 << i)))
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1670) continue;
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1671) sprintf(name, "IT%u", i);
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1672) detect_dead_context(ohci, name, OHCI1394_IsoXmitContextBase(i));
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1673) }
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1674) for (i = 0; i < 32; ++i) {
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1675) if (!(ohci->ir_context_support & (1 << i)))
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1676) continue;
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1677) sprintf(name, "IR%u", i);
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1678) detect_dead_context(ohci, name, OHCI1394_IsoRcvContextBase(i));
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1679) }
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1680) /* TODO: maybe try to flush and restart the dead contexts */
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1681) }
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 1682)
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1683) static u32 cycle_timer_ticks(u32 cycle_timer)
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1684) {
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1685) u32 ticks;
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1686)
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1687) ticks = cycle_timer & 0xfff;
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1688) ticks += 3072 * ((cycle_timer >> 12) & 0x1fff);
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1689) ticks += (3072 * 8000) * (cycle_timer >> 25);
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1690)
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1691) return ticks;
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1692) }
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1693)
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1694) /*
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1695) * Some controllers exhibit one or more of the following bugs when updating the
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1696) * iso cycle timer register:
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1697) * - When the lowest six bits are wrapping around to zero, a read that happens
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1698) * at the same time will return garbage in the lowest ten bits.
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1699) * - When the cycleOffset field wraps around to zero, the cycleCount field is
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1700) * not incremented for about 60 ns.
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1701) * - Occasionally, the entire register reads zero.
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1702) *
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1703) * To catch these, we read the register three times and ensure that the
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1704) * difference between each two consecutive reads is approximately the same, i.e.
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1705) * less than twice the other. Furthermore, any negative difference indicates an
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1706) * error. (A PCI read should take at least 20 ticks of the 24.576 MHz timer to
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1707) * execute, so we have enough precision to compute the ratio of the differences.)
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1708) */
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1709) static u32 get_cycle_time(struct fw_ohci *ohci)
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1710) {
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1711) u32 c0, c1, c2;
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1712) u32 t0, t1, t2;
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1713) s32 diff01, diff12;
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1714) int i;
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1715)
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1716) c2 = reg_read(ohci, OHCI1394_IsochronousCycleTimer);
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1717)
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1718) if (ohci->quirks & QUIRK_CYCLE_TIMER) {
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1719) i = 0;
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1720) c1 = c2;
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1721) c2 = reg_read(ohci, OHCI1394_IsochronousCycleTimer);
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1722) do {
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1723) c0 = c1;
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1724) c1 = c2;
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1725) c2 = reg_read(ohci, OHCI1394_IsochronousCycleTimer);
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1726) t0 = cycle_timer_ticks(c0);
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1727) t1 = cycle_timer_ticks(c1);
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1728) t2 = cycle_timer_ticks(c2);
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1729) diff01 = t1 - t0;
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1730) diff12 = t2 - t1;
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1731) } while ((diff01 <= 0 || diff12 <= 0 ||
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1732) diff01 / diff12 >= 2 || diff12 / diff01 >= 2)
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1733) && i++ < 20);
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1734) }
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1735)
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1736) return c2;
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1737) }
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1738)
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1739) /*
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1740) * This function has to be called at least every 64 seconds. The bus_time
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1741) * field stores not only the upper 25 bits of the BUS_TIME register but also
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1742) * the most significant bit of the cycle timer in bit 6 so that we can detect
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1743) * changes in this bit.
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1744) */
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1745) static u32 update_bus_time(struct fw_ohci *ohci)
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1746) {
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1747) u32 cycle_time_seconds = get_cycle_time(ohci) >> 25;
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1748)
9d60ef2bd87f2 drivers/firewire/ohci.c (Clemens Ladisch 2012-05-24 19:29:19 +0200 1749) if (unlikely(!ohci->bus_time_running)) {
9d60ef2bd87f2 drivers/firewire/ohci.c (Clemens Ladisch 2012-05-24 19:29:19 +0200 1750) reg_write(ohci, OHCI1394_IntMaskSet, OHCI1394_cycle64Seconds);
b98c7518c5345 drivers/firewire/ohci.c (Arnd Bergmann 2018-06-18 16:19:24 +0200 1751) ohci->bus_time = (lower_32_bits(ktime_get_seconds()) & ~0x7f) |
9d60ef2bd87f2 drivers/firewire/ohci.c (Clemens Ladisch 2012-05-24 19:29:19 +0200 1752) (cycle_time_seconds & 0x40);
9d60ef2bd87f2 drivers/firewire/ohci.c (Clemens Ladisch 2012-05-24 19:29:19 +0200 1753) ohci->bus_time_running = true;
9d60ef2bd87f2 drivers/firewire/ohci.c (Clemens Ladisch 2012-05-24 19:29:19 +0200 1754) }
9d60ef2bd87f2 drivers/firewire/ohci.c (Clemens Ladisch 2012-05-24 19:29:19 +0200 1755)
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1756) if ((ohci->bus_time & 0x40) != (cycle_time_seconds & 0x40))
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1757) ohci->bus_time += 0x40;
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1758)
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1759) return ohci->bus_time | cycle_time_seconds;
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1760) }
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 1761)
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1762) static int get_status_for_port(struct fw_ohci *ohci, int port_index)
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1763) {
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1764) int reg;
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1765)
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1766) mutex_lock(&ohci->phy_reg_mutex);
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1767) reg = write_phy_reg(ohci, 7, port_index);
28897fb73c848 drivers/firewire/ohci.c (Stefan Richter 2011-09-19 00:17:37 +0200 1768) if (reg >= 0)
28897fb73c848 drivers/firewire/ohci.c (Stefan Richter 2011-09-19 00:17:37 +0200 1769) reg = read_phy_reg(ohci, 8);
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1770) mutex_unlock(&ohci->phy_reg_mutex);
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1771) if (reg < 0)
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1772) return reg;
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1773)
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1774) switch (reg & 0x0f) {
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1775) case 0x06:
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1776) return 2; /* is child node (connected to parent node) */
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1777) case 0x0e:
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1778) return 3; /* is parent node (connected to child node) */
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1779) }
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1780) return 1; /* not connected */
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1781) }
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1782)
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1783) static int get_self_id_pos(struct fw_ohci *ohci, u32 self_id,
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1784) int self_id_count)
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1785) {
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1786) int i;
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1787) u32 entry;
28897fb73c848 drivers/firewire/ohci.c (Stefan Richter 2011-09-19 00:17:37 +0200 1788)
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1789) for (i = 0; i < self_id_count; i++) {
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1790) entry = ohci->self_id_buffer[i];
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1791) if ((self_id & 0xff000000) == (entry & 0xff000000))
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1792) return -1;
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1793) if ((self_id & 0xff000000) < (entry & 0xff000000))
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1794) return i;
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1795) }
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1796) return i;
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1797) }
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1798)
52439d605d660 drivers/firewire/ohci.c (Stephan Gatzka 2012-09-03 21:17:50 +0200 1799) static int initiated_reset(struct fw_ohci *ohci)
52439d605d660 drivers/firewire/ohci.c (Stephan Gatzka 2012-09-03 21:17:50 +0200 1800) {
52439d605d660 drivers/firewire/ohci.c (Stephan Gatzka 2012-09-03 21:17:50 +0200 1801) int reg;
52439d605d660 drivers/firewire/ohci.c (Stephan Gatzka 2012-09-03 21:17:50 +0200 1802) int ret = 0;
52439d605d660 drivers/firewire/ohci.c (Stephan Gatzka 2012-09-03 21:17:50 +0200 1803)
52439d605d660 drivers/firewire/ohci.c (Stephan Gatzka 2012-09-03 21:17:50 +0200 1804) mutex_lock(&ohci->phy_reg_mutex);
52439d605d660 drivers/firewire/ohci.c (Stephan Gatzka 2012-09-03 21:17:50 +0200 1805) reg = write_phy_reg(ohci, 7, 0xe0); /* Select page 7 */
52439d605d660 drivers/firewire/ohci.c (Stephan Gatzka 2012-09-03 21:17:50 +0200 1806) if (reg >= 0) {
52439d605d660 drivers/firewire/ohci.c (Stephan Gatzka 2012-09-03 21:17:50 +0200 1807) reg = read_phy_reg(ohci, 8);
52439d605d660 drivers/firewire/ohci.c (Stephan Gatzka 2012-09-03 21:17:50 +0200 1808) reg |= 0x40;
52439d605d660 drivers/firewire/ohci.c (Stephan Gatzka 2012-09-03 21:17:50 +0200 1809) reg = write_phy_reg(ohci, 8, reg); /* set PMODE bit */
52439d605d660 drivers/firewire/ohci.c (Stephan Gatzka 2012-09-03 21:17:50 +0200 1810) if (reg >= 0) {
52439d605d660 drivers/firewire/ohci.c (Stephan Gatzka 2012-09-03 21:17:50 +0200 1811) reg = read_phy_reg(ohci, 12); /* read register 12 */
52439d605d660 drivers/firewire/ohci.c (Stephan Gatzka 2012-09-03 21:17:50 +0200 1812) if (reg >= 0) {
52439d605d660 drivers/firewire/ohci.c (Stephan Gatzka 2012-09-03 21:17:50 +0200 1813) if ((reg & 0x08) == 0x08) {
52439d605d660 drivers/firewire/ohci.c (Stephan Gatzka 2012-09-03 21:17:50 +0200 1814) /* bit 3 indicates "initiated reset" */
52439d605d660 drivers/firewire/ohci.c (Stephan Gatzka 2012-09-03 21:17:50 +0200 1815) ret = 0x2;
52439d605d660 drivers/firewire/ohci.c (Stephan Gatzka 2012-09-03 21:17:50 +0200 1816) }
52439d605d660 drivers/firewire/ohci.c (Stephan Gatzka 2012-09-03 21:17:50 +0200 1817) }
52439d605d660 drivers/firewire/ohci.c (Stephan Gatzka 2012-09-03 21:17:50 +0200 1818) }
52439d605d660 drivers/firewire/ohci.c (Stephan Gatzka 2012-09-03 21:17:50 +0200 1819) }
52439d605d660 drivers/firewire/ohci.c (Stephan Gatzka 2012-09-03 21:17:50 +0200 1820) mutex_unlock(&ohci->phy_reg_mutex);
52439d605d660 drivers/firewire/ohci.c (Stephan Gatzka 2012-09-03 21:17:50 +0200 1821) return ret;
52439d605d660 drivers/firewire/ohci.c (Stephan Gatzka 2012-09-03 21:17:50 +0200 1822) }
52439d605d660 drivers/firewire/ohci.c (Stephan Gatzka 2012-09-03 21:17:50 +0200 1823)
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1824) /*
28897fb73c848 drivers/firewire/ohci.c (Stefan Richter 2011-09-19 00:17:37 +0200 1825) * TI TSB82AA2B and TSB12LV26 do not receive the selfID of a locally
28897fb73c848 drivers/firewire/ohci.c (Stefan Richter 2011-09-19 00:17:37 +0200 1826) * attached TSB41BA3D phy; see http://www.ti.com/litv/pdf/sllz059.
28897fb73c848 drivers/firewire/ohci.c (Stefan Richter 2011-09-19 00:17:37 +0200 1827) * Construct the selfID from phy register contents.
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1828) */
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1829) static int find_and_insert_self_id(struct fw_ohci *ohci, int self_id_count)
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1830) {
28897fb73c848 drivers/firewire/ohci.c (Stefan Richter 2011-09-19 00:17:37 +0200 1831) int reg, i, pos, status;
28897fb73c848 drivers/firewire/ohci.c (Stefan Richter 2011-09-19 00:17:37 +0200 1832) /* link active 1, speed 3, bridge 0, contender 1, more packets 0 */
28897fb73c848 drivers/firewire/ohci.c (Stefan Richter 2011-09-19 00:17:37 +0200 1833) u32 self_id = 0x8040c800;
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1834)
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1835) reg = reg_read(ohci, OHCI1394_NodeID);
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1836) if (!(reg & OHCI1394_NodeID_idValid)) {
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 1837) ohci_notice(ohci,
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 1838) "node ID not valid, new bus reset in progress\n");
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1839) return -EBUSY;
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1840) }
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1841) self_id |= ((reg & 0x3f) << 24); /* phy ID */
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1842)
28897fb73c848 drivers/firewire/ohci.c (Stefan Richter 2011-09-19 00:17:37 +0200 1843) reg = ohci_read_phy_reg(&ohci->card, 4);
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1844) if (reg < 0)
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1845) return reg;
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1846) self_id |= ((reg & 0x07) << 8); /* power class */
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1847)
28897fb73c848 drivers/firewire/ohci.c (Stefan Richter 2011-09-19 00:17:37 +0200 1848) reg = ohci_read_phy_reg(&ohci->card, 1);
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1849) if (reg < 0)
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1850) return reg;
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1851) self_id |= ((reg & 0x3f) << 16); /* gap count */
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1852)
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1853) for (i = 0; i < 3; i++) {
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1854) status = get_status_for_port(ohci, i);
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1855) if (status < 0)
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1856) return status;
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1857) self_id |= ((status & 0x3) << (6 - (i * 2)));
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1858) }
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1859)
52439d605d660 drivers/firewire/ohci.c (Stephan Gatzka 2012-09-03 21:17:50 +0200 1860) self_id |= initiated_reset(ohci);
52439d605d660 drivers/firewire/ohci.c (Stephan Gatzka 2012-09-03 21:17:50 +0200 1861)
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1862) pos = get_self_id_pos(ohci, self_id, self_id_count);
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1863) if (pos >= 0) {
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1864) memmove(&(ohci->self_id_buffer[pos+1]),
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1865) &(ohci->self_id_buffer[pos]),
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1866) (self_id_count - pos) * sizeof(*ohci->self_id_buffer));
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1867) ohci->self_id_buffer[pos] = self_id;
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1868) self_id_count++;
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1869) }
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1870) return self_id_count;
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1871) }
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1872)
2d7a36e23300d drivers/firewire/ohci.c (Stephan Gatzka 2011-07-25 22:16:24 +0200 1873) static void bus_reset_work(struct work_struct *work)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1874) {
2d7a36e23300d drivers/firewire/ohci.c (Stephan Gatzka 2011-07-25 22:16:24 +0200 1875) struct fw_ohci *ohci =
2d7a36e23300d drivers/firewire/ohci.c (Stephan Gatzka 2011-07-25 22:16:24 +0200 1876) container_of(work, struct fw_ohci, bus_reset_work);
d713dfa708e14 drivers/firewire/ohci.c (Stefan Richter 2012-04-09 21:39:53 +0200 1877) int self_id_count, generation, new_generation, i, j;
d713dfa708e14 drivers/firewire/ohci.c (Stefan Richter 2012-04-09 21:39:53 +0200 1878) u32 reg;
4eaff7d63052d drivers/firewire/fw-ohci.c (Stefan Richter 2007-07-25 19:18:08 +0200 1879) void *free_rom = NULL;
4eaff7d63052d drivers/firewire/fw-ohci.c (Stefan Richter 2007-07-25 19:18:08 +0200 1880) dma_addr_t free_rom_bus = 0;
4ffb7a6a066e4 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:36:37 +0200 1881) bool is_new_root;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1882)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1883) reg = reg_read(ohci, OHCI1394_NodeID);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1884) if (!(reg & OHCI1394_NodeID_idValid)) {
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 1885) ohci_notice(ohci,
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 1886) "node ID not valid, new bus reset in progress\n");
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1887) return;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1888) }
02ff8f8ee151e drivers/firewire/fw-ohci.c (Stefan Richter 2007-08-30 00:11:40 +0200 1889) if ((reg & OHCI1394_NodeID_nodeNumber) == 63) {
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 1890) ohci_notice(ohci, "malconfigured bus\n");
02ff8f8ee151e drivers/firewire/fw-ohci.c (Stefan Richter 2007-08-30 00:11:40 +0200 1891) return;
02ff8f8ee151e drivers/firewire/fw-ohci.c (Stefan Richter 2007-08-30 00:11:40 +0200 1892) }
02ff8f8ee151e drivers/firewire/fw-ohci.c (Stefan Richter 2007-08-30 00:11:40 +0200 1893) ohci->node_id = reg & (OHCI1394_NodeID_busNumber |
02ff8f8ee151e drivers/firewire/fw-ohci.c (Stefan Richter 2007-08-30 00:11:40 +0200 1894) OHCI1394_NodeID_nodeNumber);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1895)
4ffb7a6a066e4 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:36:37 +0200 1896) is_new_root = (reg & OHCI1394_NodeID_root) != 0;
4ffb7a6a066e4 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:36:37 +0200 1897) if (!(ohci->is_root && is_new_root))
4ffb7a6a066e4 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:36:37 +0200 1898) reg_write(ohci, OHCI1394_LinkControlSet,
4ffb7a6a066e4 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:36:37 +0200 1899) OHCI1394_LinkControl_cycleMaster);
4ffb7a6a066e4 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:36:37 +0200 1900) ohci->is_root = is_new_root;
4ffb7a6a066e4 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:36:37 +0200 1901)
c8a9a498e16b2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-19 21:40:32 +0100 1902) reg = reg_read(ohci, OHCI1394_SelfIDCount);
c8a9a498e16b2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-19 21:40:32 +0100 1903) if (reg & OHCI1394_SelfIDCount_selfIDError) {
67672134aaafd drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:56:01 -0400 1904) ohci_notice(ohci, "self ID receive error\n");
c8a9a498e16b2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-19 21:40:32 +0100 1905) return;
c8a9a498e16b2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-19 21:40:32 +0100 1906) }
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 1907) /*
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 1908) * The count in the SelfIDCount register is the number of
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1909) * bytes in the self ID receive buffer. Since we also receive
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1910) * the inverted quadlets and a header quadlet, we shift one
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 1911) * bit extra to get the actual number of self IDs.
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 1912) */
928ec5f148e72 drivers/firewire/ohci.c (Stefan Richter 2009-09-06 18:49:17 +0200 1913) self_id_count = (reg >> 3) & 0xff;
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1914)
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1915) if (self_id_count > 252) {
67672134aaafd drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:56:01 -0400 1916) ohci_notice(ohci, "bad selfIDSize (%08x)\n", reg);
016bf3dfcf7c7 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-19 22:05:02 +0100 1917) return;
016bf3dfcf7c7 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-19 22:05:02 +0100 1918) }
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1919)
af53122a2a623 drivers/firewire/ohci.c (Stefan Richter 2013-08-05 15:10:38 +0200 1920) generation = (cond_le32_to_cpu(ohci->self_id[0]) >> 16) & 0xff;
ee71c2f9ee851 drivers/firewire/fw-ohci.c (Stefan Richter 2007-08-25 14:08:19 +0200 1921) rmb();
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1922)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1923) for (i = 1, j = 0; j < self_id_count; i += 2, j++) {
af53122a2a623 drivers/firewire/ohci.c (Stefan Richter 2013-08-05 15:10:38 +0200 1924) u32 id = cond_le32_to_cpu(ohci->self_id[i]);
af53122a2a623 drivers/firewire/ohci.c (Stefan Richter 2013-08-05 15:10:38 +0200 1925) u32 id2 = cond_le32_to_cpu(ohci->self_id[i + 1]);
67672134aaafd drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:56:01 -0400 1926)
67672134aaafd drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:56:01 -0400 1927) if (id != ~id2) {
32eaeae177bf7 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 18:14:39 +0200 1928) /*
32eaeae177bf7 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 18:14:39 +0200 1929) * If the invalid data looks like a cycle start packet,
32eaeae177bf7 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 18:14:39 +0200 1930) * it's likely to be the result of the cycle master
32eaeae177bf7 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 18:14:39 +0200 1931) * having a wrong gap count. In this case, the self IDs
32eaeae177bf7 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 18:14:39 +0200 1932) * so far are valid and should be processed so that the
32eaeae177bf7 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 18:14:39 +0200 1933) * bus manager can then correct the gap count.
32eaeae177bf7 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 18:14:39 +0200 1934) */
67672134aaafd drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:56:01 -0400 1935) if (id == 0xffff008f) {
67672134aaafd drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:56:01 -0400 1936) ohci_notice(ohci, "ignoring spurious self IDs\n");
32eaeae177bf7 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 18:14:39 +0200 1937) self_id_count = j;
32eaeae177bf7 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 18:14:39 +0200 1938) break;
32eaeae177bf7 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 18:14:39 +0200 1939) }
67672134aaafd drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:56:01 -0400 1940)
67672134aaafd drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:56:01 -0400 1941) ohci_notice(ohci, "bad self ID %d/%d (%08x != ~%08x)\n",
67672134aaafd drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:56:01 -0400 1942) j, self_id_count, id, id2);
67672134aaafd drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:56:01 -0400 1943) return;
c8a9a498e16b2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-19 21:40:32 +0100 1944) }
67672134aaafd drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:56:01 -0400 1945) ohci->self_id_buffer[j] = id;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1946) }
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1947)
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1948) if (ohci->quirks & QUIRK_TI_SLLZ059) {
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1949) self_id_count = find_and_insert_self_id(ohci, self_id_count);
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1950) if (self_id_count < 0) {
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 1951) ohci_notice(ohci,
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 1952) "could not construct local self ID\n");
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1953) return;
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1954) }
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1955) }
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1956)
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1957) if (self_id_count == 0) {
67672134aaafd drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:56:01 -0400 1958) ohci_notice(ohci, "no self IDs\n");
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1959) return;
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 1960) }
ee71c2f9ee851 drivers/firewire/fw-ohci.c (Stefan Richter 2007-08-25 14:08:19 +0200 1961) rmb();
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1962)
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 1963) /*
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 1964) * Check the consistency of the self IDs we just read. The
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1965) * problem we face is that a new bus reset can start while we
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1966) * read out the self IDs from the DMA buffer. If this happens,
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1967) * the DMA buffer will be overwritten with new self IDs and we
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1968) * will read out inconsistent data. The OHCI specification
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1969) * (section 11.2) recommends a technique similar to
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1970) * linux/seqlock.h, where we remember the generation of the
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1971) * self IDs in the buffer before reading them out and compare
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1972) * it to the current generation after reading them out. If
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1973) * the two generations match we know we have a consistent set
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 1974) * of self IDs.
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 1975) */
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1976)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1977) new_generation = (reg_read(ohci, OHCI1394_SelfIDCount) >> 16) & 0xff;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1978) if (new_generation != generation) {
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 1979) ohci_notice(ohci, "new bus reset, discarding self ids\n");
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1980) return;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1981) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1982)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1983) /* FIXME: Document how the locking works. */
8a8c47364eef8 drivers/firewire/ohci.c (Stefan Richter 2012-04-09 21:40:33 +0200 1984) spin_lock_irq(&ohci->lock);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 1985)
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1986) ohci->generation = -1; /* prevent AT packet queueing */
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1987) context_stop(&ohci->at_request_ctx);
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 1988) context_stop(&ohci->at_response_ctx);
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1989)
8a8c47364eef8 drivers/firewire/ohci.c (Stefan Richter 2012-04-09 21:40:33 +0200 1990) spin_unlock_irq(&ohci->lock);
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1991)
78dec56d6a563 drivers/firewire/ohci.c (Stefan Richter 2011-01-01 15:15:40 +0100 1992) /*
78dec56d6a563 drivers/firewire/ohci.c (Stefan Richter 2011-01-01 15:15:40 +0100 1993) * Per OHCI 1.2 draft, clause 7.2.3.3, hardware may leave unsent
78dec56d6a563 drivers/firewire/ohci.c (Stefan Richter 2011-01-01 15:15:40 +0100 1994) * packets in the AT queues and software needs to drain them.
78dec56d6a563 drivers/firewire/ohci.c (Stefan Richter 2011-01-01 15:15:40 +0100 1995) * Some OHCI 1.1 controllers (JMicron) apparently require this too.
78dec56d6a563 drivers/firewire/ohci.c (Stefan Richter 2011-01-01 15:15:40 +0100 1996) */
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1997) at_context_flush(&ohci->at_request_ctx);
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1998) at_context_flush(&ohci->at_response_ctx);
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 1999)
8a8c47364eef8 drivers/firewire/ohci.c (Stefan Richter 2012-04-09 21:40:33 +0200 2000) spin_lock_irq(&ohci->lock);
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 2001)
82b662dc41027 drivers/firewire/ohci.c (Clemens Ladisch 2010-12-24 14:40:15 +0100 2002) ohci->generation = generation;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2003) reg_write(ohci, OHCI1394_IntEventClear, OHCI1394_busReset);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2004)
4a635593f4474 drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:58:01 +0100 2005) if (ohci->quirks & QUIRK_RESET_PACKET)
d34316a4bdcd4 drivers/firewire/fw-ohci.c (Stefan Richter 2008-04-12 22:31:25 +0200 2006) ohci->request_generation = generation;
d34316a4bdcd4 drivers/firewire/fw-ohci.c (Stefan Richter 2008-04-12 22:31:25 +0200 2007)
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 2008) /*
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 2009) * This next bit is unrelated to the AT context stuff but we
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2010) * have to do it under the spinlock also. If a new config rom
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2011) * was set up before this reset, the old one is now no longer
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2012) * in use and we can free it. Update the config rom pointers
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2013) * to point to the current config rom and clear the
8839316121049 drivers/firewire/ohci.c (Thomas Weber 2010-03-16 11:47:56 +0100 2014) * next_config_rom pointer so a new update can take place.
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 2015) */
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2016)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2017) if (ohci->next_config_rom != NULL) {
0bd243c4d9358 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-06-05 19:27:05 -0400 2018) if (ohci->next_config_rom != ohci->config_rom) {
0bd243c4d9358 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-06-05 19:27:05 -0400 2019) free_rom = ohci->config_rom;
0bd243c4d9358 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-06-05 19:27:05 -0400 2020) free_rom_bus = ohci->config_rom_bus;
0bd243c4d9358 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-06-05 19:27:05 -0400 2021) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2022) ohci->config_rom = ohci->next_config_rom;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2023) ohci->config_rom_bus = ohci->next_config_rom_bus;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2024) ohci->next_config_rom = NULL;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2025)
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 2026) /*
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 2027) * Restore config_rom image and manually update
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2028) * config_rom registers. Writing the header quadlet
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2029) * will indicate that the config rom is ready, so we
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 2030) * do that last.
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 2031) */
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2032) reg_write(ohci, OHCI1394_BusOptions,
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2033) be32_to_cpu(ohci->config_rom[2]));
8e85973efc87d drivers/firewire/ohci.c (Stefan Richter 2009-10-08 00:41:59 +0200 2034) ohci->config_rom[0] = ohci->next_header;
8e85973efc87d drivers/firewire/ohci.c (Stefan Richter 2009-10-08 00:41:59 +0200 2035) reg_write(ohci, OHCI1394_ConfigROMhdr,
8e85973efc87d drivers/firewire/ohci.c (Stefan Richter 2009-10-08 00:41:59 +0200 2036) be32_to_cpu(ohci->next_header));
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2037) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2038)
8bc588e0e585b drivers/firewire/ohci.c (Lubomir Rintel 2013-12-22 11:34:22 +0100 2039) if (param_remote_dma) {
8bc588e0e585b drivers/firewire/ohci.c (Lubomir Rintel 2013-12-22 11:34:22 +0100 2040) reg_write(ohci, OHCI1394_PhyReqFilterHiSet, ~0);
8bc588e0e585b drivers/firewire/ohci.c (Lubomir Rintel 2013-12-22 11:34:22 +0100 2041) reg_write(ohci, OHCI1394_PhyReqFilterLoSet, ~0);
8bc588e0e585b drivers/firewire/ohci.c (Lubomir Rintel 2013-12-22 11:34:22 +0100 2042) }
080de8c2c57e3 drivers/firewire/fw-ohci.c (Stefan Richter 2008-02-28 20:54:43 +0100 2043)
8a8c47364eef8 drivers/firewire/ohci.c (Stefan Richter 2012-04-09 21:40:33 +0200 2044) spin_unlock_irq(&ohci->lock);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2045)
4eaff7d63052d drivers/firewire/fw-ohci.c (Stefan Richter 2007-07-25 19:18:08 +0200 2046) if (free_rom)
4eaff7d63052d drivers/firewire/fw-ohci.c (Stefan Richter 2007-07-25 19:18:08 +0200 2047) dma_free_coherent(ohci->card.device, CONFIG_ROM_SIZE,
4eaff7d63052d drivers/firewire/fw-ohci.c (Stefan Richter 2007-07-25 19:18:08 +0200 2048) free_rom, free_rom_bus);
4eaff7d63052d drivers/firewire/fw-ohci.c (Stefan Richter 2007-07-25 19:18:08 +0200 2049)
64d2172019dcf drivers/firewire/ohci.c (Stefan Richter 2011-12-20 21:32:46 +0100 2050) log_selfids(ohci, generation, self_id_count);
ad3c0fe8b8d16 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-20 22:04:36 +0100 2051)
e636fe2576be5 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-01-26 00:38:04 -0500 2052) fw_core_handle_bus_reset(&ohci->card, ohci->node_id, generation,
c8a94ded57e9c drivers/firewire/ohci.c (Stefan Richter 2010-06-12 20:34:50 +0200 2053) self_id_count, ohci->self_id_buffer,
c8a94ded57e9c drivers/firewire/ohci.c (Stefan Richter 2010-06-12 20:34:50 +0200 2054) ohci->csr_state_setclear_abdicate);
c8a94ded57e9c drivers/firewire/ohci.c (Stefan Richter 2010-06-12 20:34:50 +0200 2055) ohci->csr_state_setclear_abdicate = false;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2056) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2057)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2058) static irqreturn_t irq_handler(int irq, void *data)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2059) {
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2060) struct fw_ohci *ohci = data;
168cf9af699e8 drivers/firewire/ohci.c (Stefan Richter 2010-02-14 18:49:18 +0100 2061) u32 event, iso_event;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2062) int i;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2063)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2064) event = reg_read(ohci, OHCI1394_IntEventClear);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2065)
a515958d6f77f drivers/firewire/fw-ohci.c (Stefan Richter 2007-06-09 19:31:14 +0200 2066) if (!event || !~event)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2067) return IRQ_NONE;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2068)
8327b37b18add drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:32 +0100 2069) /*
8327b37b18add drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:32 +0100 2070) * busReset and postedWriteErr must not be cleared yet
8327b37b18add drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:32 +0100 2071) * (OHCI 1.1 clauses 7.2.3.2 and 13.2.8.1)
8327b37b18add drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:32 +0100 2072) */
8327b37b18add drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:32 +0100 2073) reg_write(ohci, OHCI1394_IntEventClear,
8327b37b18add drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:32 +0100 2074) event & ~(OHCI1394_busReset | OHCI1394_postedWriteErr));
64d2172019dcf drivers/firewire/ohci.c (Stefan Richter 2011-12-20 21:32:46 +0100 2075) log_irqs(ohci, event);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2076)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2077) if (event & OHCI1394_selfIDComplete)
db9ae8fec7b19 drivers/firewire/ohci.c (Stephan Gatzka 2013-08-26 20:50:05 +0200 2078) queue_work(selfid_workqueue, &ohci->bus_reset_work);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2079)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2080) if (event & OHCI1394_RQPkt)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2081) tasklet_schedule(&ohci->ar_request_ctx.tasklet);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2082)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2083) if (event & OHCI1394_RSPkt)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2084) tasklet_schedule(&ohci->ar_response_ctx.tasklet);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2085)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2086) if (event & OHCI1394_reqTxComplete)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2087) tasklet_schedule(&ohci->at_request_ctx.tasklet);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2088)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2089) if (event & OHCI1394_respTxComplete)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2090) tasklet_schedule(&ohci->at_response_ctx.tasklet);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2091)
2dd5bed59356e drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:05 +0100 2092) if (event & OHCI1394_isochRx) {
2dd5bed59356e drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:05 +0100 2093) iso_event = reg_read(ohci, OHCI1394_IsoRecvIntEventClear);
2dd5bed59356e drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:05 +0100 2094) reg_write(ohci, OHCI1394_IsoRecvIntEventClear, iso_event);
2dd5bed59356e drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:05 +0100 2095)
2dd5bed59356e drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:05 +0100 2096) while (iso_event) {
2dd5bed59356e drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:05 +0100 2097) i = ffs(iso_event) - 1;
2dd5bed59356e drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:05 +0100 2098) tasklet_schedule(
2dd5bed59356e drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:05 +0100 2099) &ohci->ir_context_list[i].context.tasklet);
2dd5bed59356e drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:05 +0100 2100) iso_event &= ~(1 << i);
2dd5bed59356e drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:05 +0100 2101) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2102) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2103)
2dd5bed59356e drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:05 +0100 2104) if (event & OHCI1394_isochTx) {
2dd5bed59356e drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:05 +0100 2105) iso_event = reg_read(ohci, OHCI1394_IsoXmitIntEventClear);
2dd5bed59356e drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:05 +0100 2106) reg_write(ohci, OHCI1394_IsoXmitIntEventClear, iso_event);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2107)
2dd5bed59356e drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:05 +0100 2108) while (iso_event) {
2dd5bed59356e drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:05 +0100 2109) i = ffs(iso_event) - 1;
2dd5bed59356e drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:05 +0100 2110) tasklet_schedule(
2dd5bed59356e drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:05 +0100 2111) &ohci->it_context_list[i].context.tasklet);
2dd5bed59356e drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:05 +0100 2112) iso_event &= ~(1 << i);
2dd5bed59356e drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:05 +0100 2113) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2114) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2115)
75f7832e3b032 drivers/firewire/fw-ohci.c (Jarod Wilson 2008-04-03 17:18:23 -0400 2116) if (unlikely(event & OHCI1394_regAccessFail))
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 2117) ohci_err(ohci, "register access failure\n");
75f7832e3b032 drivers/firewire/fw-ohci.c (Jarod Wilson 2008-04-03 17:18:23 -0400 2118)
8327b37b18add drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:32 +0100 2119) if (unlikely(event & OHCI1394_postedWriteErr)) {
8327b37b18add drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:32 +0100 2120) reg_read(ohci, OHCI1394_PostedWriteAddressHi);
8327b37b18add drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:32 +0100 2121) reg_read(ohci, OHCI1394_PostedWriteAddressLo);
8327b37b18add drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:32 +0100 2122) reg_write(ohci, OHCI1394_IntEventClear,
8327b37b18add drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:32 +0100 2123) OHCI1394_postedWriteErr);
a74477db9171e drivers/firewire/ohci.c (Stephan Gatzka 2011-09-26 21:44:30 +0200 2124) if (printk_ratelimit())
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 2125) ohci_err(ohci, "PCI posted write error\n");
8327b37b18add drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:32 +0100 2126) }
e524f616f5972 drivers/firewire/fw-ohci.c (Stefan Richter 2007-08-20 21:58:30 +0200 2127)
bb9f2206b60ac drivers/firewire/fw-ohci.c (Stefan Richter 2007-12-22 22:14:52 +0100 2128) if (unlikely(event & OHCI1394_cycleTooLong)) {
bb9f2206b60ac drivers/firewire/fw-ohci.c (Stefan Richter 2007-12-22 22:14:52 +0100 2129) if (printk_ratelimit())
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 2130) ohci_notice(ohci, "isochronous cycle too long\n");
bb9f2206b60ac drivers/firewire/fw-ohci.c (Stefan Richter 2007-12-22 22:14:52 +0100 2131) reg_write(ohci, OHCI1394_LinkControlSet,
bb9f2206b60ac drivers/firewire/fw-ohci.c (Stefan Richter 2007-12-22 22:14:52 +0100 2132) OHCI1394_LinkControl_cycleMaster);
bb9f2206b60ac drivers/firewire/fw-ohci.c (Stefan Richter 2007-12-22 22:14:52 +0100 2133) }
bb9f2206b60ac drivers/firewire/fw-ohci.c (Stefan Richter 2007-12-22 22:14:52 +0100 2134)
5ed1f321a71b8 drivers/firewire/ohci.c (Jay Fenlason 2009-11-17 12:29:17 -0500 2135) if (unlikely(event & OHCI1394_cycleInconsistent)) {
5ed1f321a71b8 drivers/firewire/ohci.c (Jay Fenlason 2009-11-17 12:29:17 -0500 2136) /*
5ed1f321a71b8 drivers/firewire/ohci.c (Jay Fenlason 2009-11-17 12:29:17 -0500 2137) * We need to clear this event bit in order to make
5ed1f321a71b8 drivers/firewire/ohci.c (Jay Fenlason 2009-11-17 12:29:17 -0500 2138) * cycleMatch isochronous I/O work. In theory we should
5ed1f321a71b8 drivers/firewire/ohci.c (Jay Fenlason 2009-11-17 12:29:17 -0500 2139) * stop active cycleMatch iso contexts now and restart
5ed1f321a71b8 drivers/firewire/ohci.c (Jay Fenlason 2009-11-17 12:29:17 -0500 2140) * them at least two cycles later. (FIXME?)
5ed1f321a71b8 drivers/firewire/ohci.c (Jay Fenlason 2009-11-17 12:29:17 -0500 2141) */
5ed1f321a71b8 drivers/firewire/ohci.c (Jay Fenlason 2009-11-17 12:29:17 -0500 2142) if (printk_ratelimit())
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 2143) ohci_notice(ohci, "isochronous cycle inconsistent\n");
5ed1f321a71b8 drivers/firewire/ohci.c (Jay Fenlason 2009-11-17 12:29:17 -0500 2144) }
5ed1f321a71b8 drivers/firewire/ohci.c (Jay Fenlason 2009-11-17 12:29:17 -0500 2145)
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 2146) if (unlikely(event & OHCI1394_unrecoverableError))
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 2147) handle_dead_contexts(ohci);
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 2148)
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 2149) if (event & OHCI1394_cycle64Seconds) {
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 2150) spin_lock(&ohci->lock);
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 2151) update_bus_time(ohci);
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 2152) spin_unlock(&ohci->lock);
e597e9898abe4 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:19 +0100 2153) } else
e597e9898abe4 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:19 +0100 2154) flush_writes(ohci);
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 2155)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2156) return IRQ_HANDLED;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2157) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2158)
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2159) static int software_reset(struct fw_ohci *ohci)
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2160) {
9f426173e54a4 drivers/firewire/ohci.c (Stefan Richter 2011-07-03 17:39:26 +0200 2161) u32 val;
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2162) int i;
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2163)
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2164) reg_write(ohci, OHCI1394_HCControlSet, OHCI1394_HCControl_softReset);
9f426173e54a4 drivers/firewire/ohci.c (Stefan Richter 2011-07-03 17:39:26 +0200 2165) for (i = 0; i < 500; i++) {
9f426173e54a4 drivers/firewire/ohci.c (Stefan Richter 2011-07-03 17:39:26 +0200 2166) val = reg_read(ohci, OHCI1394_HCControlSet);
9f426173e54a4 drivers/firewire/ohci.c (Stefan Richter 2011-07-03 17:39:26 +0200 2167) if (!~val)
9f426173e54a4 drivers/firewire/ohci.c (Stefan Richter 2011-07-03 17:39:26 +0200 2168) return -ENODEV; /* Card was ejected. */
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2169)
9f426173e54a4 drivers/firewire/ohci.c (Stefan Richter 2011-07-03 17:39:26 +0200 2170) if (!(val & OHCI1394_HCControl_softReset))
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2171) return 0;
9f426173e54a4 drivers/firewire/ohci.c (Stefan Richter 2011-07-03 17:39:26 +0200 2172)
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2173) msleep(1);
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2174) }
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2175)
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2176) return -EBUSY;
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2177) }
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2178)
8e85973efc87d drivers/firewire/ohci.c (Stefan Richter 2009-10-08 00:41:59 +0200 2179) static void copy_config_rom(__be32 *dest, const __be32 *src, size_t length)
8e85973efc87d drivers/firewire/ohci.c (Stefan Richter 2009-10-08 00:41:59 +0200 2180) {
8e85973efc87d drivers/firewire/ohci.c (Stefan Richter 2009-10-08 00:41:59 +0200 2181) size_t size = length * 4;
8e85973efc87d drivers/firewire/ohci.c (Stefan Richter 2009-10-08 00:41:59 +0200 2182)
8e85973efc87d drivers/firewire/ohci.c (Stefan Richter 2009-10-08 00:41:59 +0200 2183) memcpy(dest, src, size);
8e85973efc87d drivers/firewire/ohci.c (Stefan Richter 2009-10-08 00:41:59 +0200 2184) if (size < CONFIG_ROM_SIZE)
8e85973efc87d drivers/firewire/ohci.c (Stefan Richter 2009-10-08 00:41:59 +0200 2185) memset(&dest[length], 0, CONFIG_ROM_SIZE - size);
8e85973efc87d drivers/firewire/ohci.c (Stefan Richter 2009-10-08 00:41:59 +0200 2186) }
8e85973efc87d drivers/firewire/ohci.c (Stefan Richter 2009-10-08 00:41:59 +0200 2187)
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2188) static int configure_1394a_enhancements(struct fw_ohci *ohci)
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2189) {
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2190) bool enable_1394a;
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 2191) int ret, clear, set, offset;
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2192)
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2193) /* Check if the driver should configure link and PHY. */
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2194) if (!(reg_read(ohci, OHCI1394_HCControlSet) &
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2195) OHCI1394_HCControl_programPhyEnable))
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2196) return 0;
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2197)
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2198) /* Paranoia: check whether the PHY supports 1394a, too. */
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2199) enable_1394a = false;
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 2200) ret = read_phy_reg(ohci, 2);
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 2201) if (ret < 0)
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 2202) return ret;
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 2203) if ((ret & PHY_EXTENDED_REGISTERS) == PHY_EXTENDED_REGISTERS) {
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 2204) ret = read_paged_phy_reg(ohci, 1, 8);
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 2205) if (ret < 0)
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 2206) return ret;
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 2207) if (ret >= 1)
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2208) enable_1394a = true;
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2209) }
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2210)
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2211) if (ohci->quirks & QUIRK_NO_1394A)
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2212) enable_1394a = false;
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2213)
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2214) /* Configure PHY and link consistently. */
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2215) if (enable_1394a) {
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2216) clear = 0;
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2217) set = PHY_ENABLE_ACCEL | PHY_ENABLE_MULTI;
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2218) } else {
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2219) clear = PHY_ENABLE_ACCEL | PHY_ENABLE_MULTI;
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2220) set = 0;
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2221) }
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 2222) ret = update_phy_reg(ohci, 5, clear, set);
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 2223) if (ret < 0)
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 2224) return ret;
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2225)
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2226) if (enable_1394a)
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2227) offset = OHCI1394_HCControlSet;
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2228) else
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2229) offset = OHCI1394_HCControlClear;
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2230) reg_write(ohci, offset, OHCI1394_HCControl_aPhyEnhanceEnable);
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2231)
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2232) /* Clean up: configuration has been taken care of. */
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2233) reg_write(ohci, OHCI1394_HCControlClear,
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2234) OHCI1394_HCControl_programPhyEnable);
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2235)
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2236) return 0;
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2237) }
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2238)
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 2239) static int probe_tsb41ba3d(struct fw_ohci *ohci)
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 2240) {
b810e4ae111cb drivers/firewire/ohci.c (Stefan Richter 2011-09-19 09:29:30 +0200 2241) /* TI vendor ID = 0x080028, TSB41BA3D product ID = 0x833005 (sic) */
b810e4ae111cb drivers/firewire/ohci.c (Stefan Richter 2011-09-19 09:29:30 +0200 2242) static const u8 id[] = { 0x08, 0x00, 0x28, 0x83, 0x30, 0x05, };
b810e4ae111cb drivers/firewire/ohci.c (Stefan Richter 2011-09-19 09:29:30 +0200 2243) int reg, i;
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 2244)
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 2245) reg = read_phy_reg(ohci, 2);
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 2246) if (reg < 0)
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 2247) return reg;
b810e4ae111cb drivers/firewire/ohci.c (Stefan Richter 2011-09-19 09:29:30 +0200 2248) if ((reg & PHY_EXTENDED_REGISTERS) != PHY_EXTENDED_REGISTERS)
b810e4ae111cb drivers/firewire/ohci.c (Stefan Richter 2011-09-19 09:29:30 +0200 2249) return 0;
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 2250)
b810e4ae111cb drivers/firewire/ohci.c (Stefan Richter 2011-09-19 09:29:30 +0200 2251) for (i = ARRAY_SIZE(id) - 1; i >= 0; i--) {
b810e4ae111cb drivers/firewire/ohci.c (Stefan Richter 2011-09-19 09:29:30 +0200 2252) reg = read_paged_phy_reg(ohci, 1, i + 10);
b810e4ae111cb drivers/firewire/ohci.c (Stefan Richter 2011-09-19 09:29:30 +0200 2253) if (reg < 0)
b810e4ae111cb drivers/firewire/ohci.c (Stefan Richter 2011-09-19 09:29:30 +0200 2254) return reg;
b810e4ae111cb drivers/firewire/ohci.c (Stefan Richter 2011-09-19 09:29:30 +0200 2255) if (reg != id[i])
b810e4ae111cb drivers/firewire/ohci.c (Stefan Richter 2011-09-19 09:29:30 +0200 2256) return 0;
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 2257) }
b810e4ae111cb drivers/firewire/ohci.c (Stefan Richter 2011-09-19 09:29:30 +0200 2258) return 1;
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 2259) }
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 2260)
8e85973efc87d drivers/firewire/ohci.c (Stefan Richter 2009-10-08 00:41:59 +0200 2261) static int ohci_enable(struct fw_card *card,
8e85973efc87d drivers/firewire/ohci.c (Stefan Richter 2009-10-08 00:41:59 +0200 2262) const __be32 *config_rom, size_t length)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2263) {
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2264) struct fw_ohci *ohci = fw_ohci(card);
9d60ef2bd87f2 drivers/firewire/ohci.c (Clemens Ladisch 2012-05-24 19:29:19 +0200 2265) u32 lps, version, irqs;
28897fb73c848 drivers/firewire/ohci.c (Stefan Richter 2011-09-19 00:17:37 +0200 2266) int i, ret;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2267)
a354cf00c7139 drivers/firewire/ohci.c (Stefan Richter 2015-11-01 15:52:13 +0100 2268) ret = software_reset(ohci);
a354cf00c7139 drivers/firewire/ohci.c (Stefan Richter 2015-11-01 15:52:13 +0100 2269) if (ret < 0) {
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 2270) ohci_err(ohci, "failed to reset ohci card\n");
a354cf00c7139 drivers/firewire/ohci.c (Stefan Richter 2015-11-01 15:52:13 +0100 2271) return ret;
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2272) }
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2273)
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2274) /*
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2275) * Now enable LPS, which we need in order to start accessing
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2276) * most of the registers. In fact, on some cards (ALI M5251),
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2277) * accessing registers in the SClk domain without LPS enabled
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2278) * will lock up the machine. Wait 50msec to make sure we have
022147242ff6e drivers/firewire/fw-ohci.c (Jarod Wilson 2008-03-28 10:02:50 -0400 2279) * full link enabled. However, with some cards (well, at least
022147242ff6e drivers/firewire/fw-ohci.c (Jarod Wilson 2008-03-28 10:02:50 -0400 2280) * a JMicron PCIe card), we have to try again sometimes.
bd972688eb240 drivers/firewire/ohci.c (Peter Hurley 2013-04-28 23:24:08 +0200 2281) *
bd972688eb240 drivers/firewire/ohci.c (Peter Hurley 2013-04-28 23:24:08 +0200 2282) * TI TSB82AA2 + TSB81BA3(A) cards signal LPS enabled early but
bd972688eb240 drivers/firewire/ohci.c (Peter Hurley 2013-04-28 23:24:08 +0200 2283) * cannot actually use the phy at that time. These need tens of
bd972688eb240 drivers/firewire/ohci.c (Peter Hurley 2013-04-28 23:24:08 +0200 2284) * millisecods pause between LPS write and first phy access too.
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2285) */
bd972688eb240 drivers/firewire/ohci.c (Peter Hurley 2013-04-28 23:24:08 +0200 2286)
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2287) reg_write(ohci, OHCI1394_HCControlSet,
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2288) OHCI1394_HCControl_LPS |
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2289) OHCI1394_HCControl_postedWriteEnable);
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2290) flush_writes(ohci);
022147242ff6e drivers/firewire/fw-ohci.c (Jarod Wilson 2008-03-28 10:02:50 -0400 2291)
0ca49345b6f48 drivers/firewire/ohci.c (Stefan Richter 2014-03-06 20:39:04 +0100 2292) for (lps = 0, i = 0; !lps && i < 3; i++) {
022147242ff6e drivers/firewire/fw-ohci.c (Jarod Wilson 2008-03-28 10:02:50 -0400 2293) msleep(50);
022147242ff6e drivers/firewire/fw-ohci.c (Jarod Wilson 2008-03-28 10:02:50 -0400 2294) lps = reg_read(ohci, OHCI1394_HCControlSet) &
022147242ff6e drivers/firewire/fw-ohci.c (Jarod Wilson 2008-03-28 10:02:50 -0400 2295) OHCI1394_HCControl_LPS;
022147242ff6e drivers/firewire/fw-ohci.c (Jarod Wilson 2008-03-28 10:02:50 -0400 2296) }
022147242ff6e drivers/firewire/fw-ohci.c (Jarod Wilson 2008-03-28 10:02:50 -0400 2297)
022147242ff6e drivers/firewire/fw-ohci.c (Jarod Wilson 2008-03-28 10:02:50 -0400 2298) if (!lps) {
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 2299) ohci_err(ohci, "failed to set Link Power Status\n");
022147242ff6e drivers/firewire/fw-ohci.c (Jarod Wilson 2008-03-28 10:02:50 -0400 2300) return -EIO;
022147242ff6e drivers/firewire/fw-ohci.c (Jarod Wilson 2008-03-28 10:02:50 -0400 2301) }
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2302)
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 2303) if (ohci->quirks & QUIRK_TI_SLLZ059) {
28897fb73c848 drivers/firewire/ohci.c (Stefan Richter 2011-09-19 00:17:37 +0200 2304) ret = probe_tsb41ba3d(ohci);
28897fb73c848 drivers/firewire/ohci.c (Stefan Richter 2011-09-19 00:17:37 +0200 2305) if (ret < 0)
28897fb73c848 drivers/firewire/ohci.c (Stefan Richter 2011-09-19 00:17:37 +0200 2306) return ret;
28897fb73c848 drivers/firewire/ohci.c (Stefan Richter 2011-09-19 00:17:37 +0200 2307) if (ret)
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 2308) ohci_notice(ohci, "local TSB41BA3D phy\n");
28897fb73c848 drivers/firewire/ohci.c (Stefan Richter 2011-09-19 00:17:37 +0200 2309) else
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 2310) ohci->quirks &= ~QUIRK_TI_SLLZ059;
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 2311) }
25935ebebd861 drivers/firewire/ohci.c (Stephan Gatzka 2011-09-12 22:23:53 +0200 2312)
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2313) reg_write(ohci, OHCI1394_HCControlClear,
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2314) OHCI1394_HCControl_noByteSwapData);
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2315)
affc9c24ade66 drivers/firewire/fw-ohci.c (Stefan Richter 2008-06-05 20:50:53 +0200 2316) reg_write(ohci, OHCI1394_SelfIDBuffer, ohci->self_id_bus);
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2317) reg_write(ohci, OHCI1394_LinkControlSet,
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2318) OHCI1394_LinkControl_cycleTimerEnable |
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2319) OHCI1394_LinkControl_cycleMaster);
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2320)
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2321) reg_write(ohci, OHCI1394_ATRetries,
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2322) OHCI1394_MAX_AT_REQ_RETRIES |
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2323) (OHCI1394_MAX_AT_RESP_RETRIES << 4) |
27a2329f8235d drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:34:13 +0200 2324) (OHCI1394_MAX_PHYS_RESP_RETRIES << 8) |
27a2329f8235d drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:34:13 +0200 2325) (200 << 16));
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2326)
9d60ef2bd87f2 drivers/firewire/ohci.c (Clemens Ladisch 2012-05-24 19:29:19 +0200 2327) ohci->bus_time_running = false;
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 2328)
e18907cc8a3cd drivers/firewire/ohci.c (Clemens Ladisch 2012-06-13 22:29:20 +0200 2329) for (i = 0; i < 32; i++)
e18907cc8a3cd drivers/firewire/ohci.c (Clemens Ladisch 2012-06-13 22:29:20 +0200 2330) if (ohci->ir_context_support & (1 << i))
e18907cc8a3cd drivers/firewire/ohci.c (Clemens Ladisch 2012-06-13 22:29:20 +0200 2331) reg_write(ohci, OHCI1394_IsoRcvContextControlClear(i),
e18907cc8a3cd drivers/firewire/ohci.c (Clemens Ladisch 2012-06-13 22:29:20 +0200 2332) IR_CONTEXT_MULTI_CHANNEL_MODE);
e18907cc8a3cd drivers/firewire/ohci.c (Clemens Ladisch 2012-06-13 22:29:20 +0200 2333)
e91b2787d0a2e drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:40:49 +0200 2334) version = reg_read(ohci, OHCI1394_Version) & 0x00ff00ff;
e91b2787d0a2e drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:40:49 +0200 2335) if (version >= OHCI_VERSION_1_1) {
e91b2787d0a2e drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:40:49 +0200 2336) reg_write(ohci, OHCI1394_InitialChannelsAvailableHi,
e91b2787d0a2e drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:40:49 +0200 2337) 0xfffffffe);
db3c9cc105ee8 drivers/firewire/ohci.c (Stefan Richter 2010-06-12 20:30:21 +0200 2338) card->broadcast_channel_auto_allocated = true;
e91b2787d0a2e drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:40:49 +0200 2339) }
e91b2787d0a2e drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:40:49 +0200 2340)
a1a1132bd83d0 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:35:06 +0200 2341) /* Get implemented bits of the priority arbitration request counter. */
a1a1132bd83d0 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:35:06 +0200 2342) reg_write(ohci, OHCI1394_FairnessControl, 0x3f);
a1a1132bd83d0 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:35:06 +0200 2343) ohci->pri_req_max = reg_read(ohci, OHCI1394_FairnessControl) & 0x3f;
a1a1132bd83d0 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:35:06 +0200 2344) reg_write(ohci, OHCI1394_FairnessControl, 0);
db3c9cc105ee8 drivers/firewire/ohci.c (Stefan Richter 2010-06-12 20:30:21 +0200 2345) card->priority_budget_implemented = ohci->pri_req_max != 0;
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2346)
fcd46b34425da drivers/firewire/ohci.c (Stefan Richter 2014-01-18 17:32:20 +0100 2347) reg_write(ohci, OHCI1394_PhyUpperBound, FW_MAX_PHYSICAL_RANGE >> 16);
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2348) reg_write(ohci, OHCI1394_IntEventClear, ~0);
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2349) reg_write(ohci, OHCI1394_IntMaskClear, ~0);
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2350)
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 2351) ret = configure_1394a_enhancements(ohci);
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 2352) if (ret < 0)
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 2353) return ret;
925e7a6504966 drivers/firewire/ohci.c (Clemens Ladisch 2010-04-04 15:19:54 +0200 2354)
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2355) /* Activate link_on bit and contender bit in our self ID packets.*/
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 2356) ret = ohci_update_phy_reg(card, 4, 0, PHY_LINK_ACTIVE | PHY_CONTENDER);
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 2357) if (ret < 0)
35d999b12037b drivers/firewire/ohci.c (Stefan Richter 2010-04-10 16:04:56 +0200 2358) return ret;
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 2359)
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 2360) /*
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 2361) * When the link is not yet enabled, the atomic config rom
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2362) * update mechanism described below in ohci_set_config_rom()
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2363) * is not active. We have to update ConfigRomHeader and
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2364) * BusOptions manually, and the write to ConfigROMmap takes
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2365) * effect immediately. We tie this to the enabling of the
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2366) * link, so we have a valid config rom before enabling - the
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2367) * OHCI requires that ConfigROMhdr and BusOptions have valid
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2368) * values before enabling.
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2369) *
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2370) * However, when the ConfigROMmap is written, some controllers
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2371) * always read back quadlets 0 and 2 from the config rom to
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2372) * the ConfigRomHeader and BusOptions registers on bus reset.
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2373) * They shouldn't do that in this initial case where the link
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2374) * isn't enabled. This means we have to use the same
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2375) * workaround here, setting the bus header to 0 and then write
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2376) * the right values in the bus reset tasklet.
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2377) */
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2378)
0bd243c4d9358 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-06-05 19:27:05 -0400 2379) if (config_rom) {
0bd243c4d9358 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-06-05 19:27:05 -0400 2380) ohci->next_config_rom =
0bd243c4d9358 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-06-05 19:27:05 -0400 2381) dma_alloc_coherent(ohci->card.device, CONFIG_ROM_SIZE,
0bd243c4d9358 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-06-05 19:27:05 -0400 2382) &ohci->next_config_rom_bus,
0bd243c4d9358 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-06-05 19:27:05 -0400 2383) GFP_KERNEL);
0bd243c4d9358 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-06-05 19:27:05 -0400 2384) if (ohci->next_config_rom == NULL)
0bd243c4d9358 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-06-05 19:27:05 -0400 2385) return -ENOMEM;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2386)
8e85973efc87d drivers/firewire/ohci.c (Stefan Richter 2009-10-08 00:41:59 +0200 2387) copy_config_rom(ohci->next_config_rom, config_rom, length);
0bd243c4d9358 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-06-05 19:27:05 -0400 2388) } else {
0bd243c4d9358 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-06-05 19:27:05 -0400 2389) /*
0bd243c4d9358 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-06-05 19:27:05 -0400 2390) * In the suspend case, config_rom is NULL, which
0bd243c4d9358 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-06-05 19:27:05 -0400 2391) * means that we just reuse the old config rom.
0bd243c4d9358 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-06-05 19:27:05 -0400 2392) */
0bd243c4d9358 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-06-05 19:27:05 -0400 2393) ohci->next_config_rom = ohci->config_rom;
0bd243c4d9358 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-06-05 19:27:05 -0400 2394) ohci->next_config_rom_bus = ohci->config_rom_bus;
0bd243c4d9358 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-06-05 19:27:05 -0400 2395) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2396)
8e85973efc87d drivers/firewire/ohci.c (Stefan Richter 2009-10-08 00:41:59 +0200 2397) ohci->next_header = ohci->next_config_rom[0];
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2398) ohci->next_config_rom[0] = 0;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2399) reg_write(ohci, OHCI1394_ConfigROMhdr, 0);
0bd243c4d9358 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-06-05 19:27:05 -0400 2400) reg_write(ohci, OHCI1394_BusOptions,
0bd243c4d9358 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-06-05 19:27:05 -0400 2401) be32_to_cpu(ohci->next_config_rom[2]));
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2402) reg_write(ohci, OHCI1394_ConfigROMmap, ohci->next_config_rom_bus);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2403)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2404) reg_write(ohci, OHCI1394_AsReqFilterHiSet, 0x80000000);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2405)
148c7866c31d9 drivers/firewire/ohci.c (Stefan Richter 2010-06-05 11:46:49 +0200 2406) irqs = OHCI1394_reqTxComplete | OHCI1394_respTxComplete |
148c7866c31d9 drivers/firewire/ohci.c (Stefan Richter 2010-06-05 11:46:49 +0200 2407) OHCI1394_RQPkt | OHCI1394_RSPkt |
148c7866c31d9 drivers/firewire/ohci.c (Stefan Richter 2010-06-05 11:46:49 +0200 2408) OHCI1394_isochTx | OHCI1394_isochRx |
148c7866c31d9 drivers/firewire/ohci.c (Stefan Richter 2010-06-05 11:46:49 +0200 2409) OHCI1394_postedWriteErr |
148c7866c31d9 drivers/firewire/ohci.c (Stefan Richter 2010-06-05 11:46:49 +0200 2410) OHCI1394_selfIDComplete |
148c7866c31d9 drivers/firewire/ohci.c (Stefan Richter 2010-06-05 11:46:49 +0200 2411) OHCI1394_regAccessFail |
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 2412) OHCI1394_cycleInconsistent |
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 2413) OHCI1394_unrecoverableError |
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 2414) OHCI1394_cycleTooLong |
148c7866c31d9 drivers/firewire/ohci.c (Stefan Richter 2010-06-05 11:46:49 +0200 2415) OHCI1394_masterIntEnable;
148c7866c31d9 drivers/firewire/ohci.c (Stefan Richter 2010-06-05 11:46:49 +0200 2416) if (param_debug & OHCI_PARAM_DEBUG_BUSRESETS)
148c7866c31d9 drivers/firewire/ohci.c (Stefan Richter 2010-06-05 11:46:49 +0200 2417) irqs |= OHCI1394_busReset;
148c7866c31d9 drivers/firewire/ohci.c (Stefan Richter 2010-06-05 11:46:49 +0200 2418) reg_write(ohci, OHCI1394_IntMaskSet, irqs);
148c7866c31d9 drivers/firewire/ohci.c (Stefan Richter 2010-06-05 11:46:49 +0200 2419)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2420) reg_write(ohci, OHCI1394_HCControlSet,
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2421) OHCI1394_HCControl_linkEnable |
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2422) OHCI1394_HCControl_BIBimageValid);
ecf8328e59447 drivers/firewire/ohci.c (Clemens Ladisch 2011-04-11 09:56:12 +0200 2423)
ecf8328e59447 drivers/firewire/ohci.c (Clemens Ladisch 2011-04-11 09:56:12 +0200 2424) reg_write(ohci, OHCI1394_LinkControlSet,
ecf8328e59447 drivers/firewire/ohci.c (Clemens Ladisch 2011-04-11 09:56:12 +0200 2425) OHCI1394_LinkControl_rcvSelfID |
ecf8328e59447 drivers/firewire/ohci.c (Clemens Ladisch 2011-04-11 09:56:12 +0200 2426) OHCI1394_LinkControl_rcvPhyPkt);
ecf8328e59447 drivers/firewire/ohci.c (Clemens Ladisch 2011-04-11 09:56:12 +0200 2427)
ecf8328e59447 drivers/firewire/ohci.c (Clemens Ladisch 2011-04-11 09:56:12 +0200 2428) ar_context_run(&ohci->ar_request_ctx);
dd6254e5c0efe drivers/firewire/ohci.c (Clemens Ladisch 2011-05-16 08:10:10 +0200 2429) ar_context_run(&ohci->ar_response_ctx);
dd6254e5c0efe drivers/firewire/ohci.c (Clemens Ladisch 2011-05-16 08:10:10 +0200 2430)
dd6254e5c0efe drivers/firewire/ohci.c (Clemens Ladisch 2011-05-16 08:10:10 +0200 2431) flush_writes(ohci);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2432)
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 2433) /* We are ready to go, reset bus to finish initialization. */
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 2434) fw_schedule_bus_reset(&ohci->card, false, true);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2435)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2436) return 0;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2437) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2438)
53dca51175cc2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:47:04 +0100 2439) static int ohci_set_config_rom(struct fw_card *card,
8e85973efc87d drivers/firewire/ohci.c (Stefan Richter 2009-10-08 00:41:59 +0200 2440) const __be32 *config_rom, size_t length)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2441) {
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2442) struct fw_ohci *ohci;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2443) __be32 *next_config_rom;
3f649ab728cda drivers/firewire/ohci.c (Kees Cook 2020-06-03 13:09:38 -0700 2444) dma_addr_t next_config_rom_bus;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2445)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2446) ohci = fw_ohci(card);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2447)
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 2448) /*
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 2449) * When the OHCI controller is enabled, the config rom update
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2450) * mechanism is a bit tricky, but easy enough to use. See
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2451) * section 5.5.6 in the OHCI specification.
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2452) *
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2453) * The OHCI controller caches the new config rom address in a
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2454) * shadow register (ConfigROMmapNext) and needs a bus reset
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2455) * for the changes to take place. When the bus reset is
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2456) * detected, the controller loads the new values for the
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2457) * ConfigRomHeader and BusOptions registers from the specified
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2458) * config rom and loads ConfigROMmap from the ConfigROMmapNext
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2459) * shadow register. All automatically and atomically.
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2460) *
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2461) * Now, there's a twist to this story. The automatic load of
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2462) * ConfigRomHeader and BusOptions doesn't honor the
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2463) * noByteSwapData bit, so with a be32 config rom, the
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2464) * controller will load be32 values in to these registers
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2465) * during the atomic update, even on litte endian
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2466) * architectures. The workaround we use is to put a 0 in the
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2467) * header quadlet; 0 is endian agnostic and means that the
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2468) * config rom isn't ready yet. In the bus reset tasklet we
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2469) * then set up the real values for the two registers.
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2470) *
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2471) * We use ohci->lock to avoid racing with the code that sets
2d7a36e23300d drivers/firewire/ohci.c (Stephan Gatzka 2011-07-25 22:16:24 +0200 2472) * ohci->next_config_rom to NULL (see bus_reset_work).
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2473) */
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2474)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2475) next_config_rom =
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2476) dma_alloc_coherent(ohci->card.device, CONFIG_ROM_SIZE,
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2477) &next_config_rom_bus, GFP_KERNEL);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2478) if (next_config_rom == NULL)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2479) return -ENOMEM;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2480)
8a8c47364eef8 drivers/firewire/ohci.c (Stefan Richter 2012-04-09 21:40:33 +0200 2481) spin_lock_irq(&ohci->lock);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2482)
2e053a27d9d5a drivers/firewire/ohci.c (B.J. Buchalter 2011-05-02 13:33:42 -0400 2483) /*
2e053a27d9d5a drivers/firewire/ohci.c (B.J. Buchalter 2011-05-02 13:33:42 -0400 2484) * If there is not an already pending config_rom update,
2e053a27d9d5a drivers/firewire/ohci.c (B.J. Buchalter 2011-05-02 13:33:42 -0400 2485) * push our new allocation into the ohci->next_config_rom
2e053a27d9d5a drivers/firewire/ohci.c (B.J. Buchalter 2011-05-02 13:33:42 -0400 2486) * and then mark the local variable as null so that we
2e053a27d9d5a drivers/firewire/ohci.c (B.J. Buchalter 2011-05-02 13:33:42 -0400 2487) * won't deallocate the new buffer.
2e053a27d9d5a drivers/firewire/ohci.c (B.J. Buchalter 2011-05-02 13:33:42 -0400 2488) *
2e053a27d9d5a drivers/firewire/ohci.c (B.J. Buchalter 2011-05-02 13:33:42 -0400 2489) * OTOH, if there is a pending config_rom update, just
2e053a27d9d5a drivers/firewire/ohci.c (B.J. Buchalter 2011-05-02 13:33:42 -0400 2490) * use that buffer with the new config_rom data, and
2e053a27d9d5a drivers/firewire/ohci.c (B.J. Buchalter 2011-05-02 13:33:42 -0400 2491) * let this routine free the unused DMA allocation.
2e053a27d9d5a drivers/firewire/ohci.c (B.J. Buchalter 2011-05-02 13:33:42 -0400 2492) */
2e053a27d9d5a drivers/firewire/ohci.c (B.J. Buchalter 2011-05-02 13:33:42 -0400 2493)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2494) if (ohci->next_config_rom == NULL) {
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2495) ohci->next_config_rom = next_config_rom;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2496) ohci->next_config_rom_bus = next_config_rom_bus;
2e053a27d9d5a drivers/firewire/ohci.c (B.J. Buchalter 2011-05-02 13:33:42 -0400 2497) next_config_rom = NULL;
2e053a27d9d5a drivers/firewire/ohci.c (B.J. Buchalter 2011-05-02 13:33:42 -0400 2498) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2499)
2e053a27d9d5a drivers/firewire/ohci.c (B.J. Buchalter 2011-05-02 13:33:42 -0400 2500) copy_config_rom(ohci->next_config_rom, config_rom, length);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2501)
2e053a27d9d5a drivers/firewire/ohci.c (B.J. Buchalter 2011-05-02 13:33:42 -0400 2502) ohci->next_header = config_rom[0];
2e053a27d9d5a drivers/firewire/ohci.c (B.J. Buchalter 2011-05-02 13:33:42 -0400 2503) ohci->next_config_rom[0] = 0;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2504)
2e053a27d9d5a drivers/firewire/ohci.c (B.J. Buchalter 2011-05-02 13:33:42 -0400 2505) reg_write(ohci, OHCI1394_ConfigROMmap, ohci->next_config_rom_bus);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2506)
8a8c47364eef8 drivers/firewire/ohci.c (Stefan Richter 2012-04-09 21:40:33 +0200 2507) spin_unlock_irq(&ohci->lock);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2508)
2e053a27d9d5a drivers/firewire/ohci.c (B.J. Buchalter 2011-05-02 13:33:42 -0400 2509) /* If we didn't use the DMA allocation, delete it. */
2e053a27d9d5a drivers/firewire/ohci.c (B.J. Buchalter 2011-05-02 13:33:42 -0400 2510) if (next_config_rom != NULL)
2e053a27d9d5a drivers/firewire/ohci.c (B.J. Buchalter 2011-05-02 13:33:42 -0400 2511) dma_free_coherent(ohci->card.device, CONFIG_ROM_SIZE,
2e053a27d9d5a drivers/firewire/ohci.c (B.J. Buchalter 2011-05-02 13:33:42 -0400 2512) next_config_rom, next_config_rom_bus);
2e053a27d9d5a drivers/firewire/ohci.c (B.J. Buchalter 2011-05-02 13:33:42 -0400 2513)
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 2514) /*
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 2515) * Now initiate a bus reset to have the changes take
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2516) * effect. We clean up the old config rom memory and DMA
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2517) * mappings in the bus reset tasklet, since the OHCI
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2518) * controller could need to access it before the bus reset
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 2519) * takes effect.
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 2520) */
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2521)
2e053a27d9d5a drivers/firewire/ohci.c (B.J. Buchalter 2011-05-02 13:33:42 -0400 2522) fw_schedule_bus_reset(&ohci->card, true, true);
2e053a27d9d5a drivers/firewire/ohci.c (B.J. Buchalter 2011-05-02 13:33:42 -0400 2523)
2e053a27d9d5a drivers/firewire/ohci.c (B.J. Buchalter 2011-05-02 13:33:42 -0400 2524) return 0;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2525) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2526)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2527) static void ohci_send_request(struct fw_card *card, struct fw_packet *packet)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2528) {
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2529) struct fw_ohci *ohci = fw_ohci(card);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2530)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2531) at_context_transmit(&ohci->at_request_ctx, packet);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2532) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2533)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2534) static void ohci_send_response(struct fw_card *card, struct fw_packet *packet)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2535) {
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2536) struct fw_ohci *ohci = fw_ohci(card);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2537)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2538) at_context_transmit(&ohci->at_response_ctx, packet);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2539) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2540)
730c32f58ba81 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:32 -0500 2541) static int ohci_cancel_packet(struct fw_card *card, struct fw_packet *packet)
730c32f58ba81 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:32 -0500 2542) {
730c32f58ba81 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:32 -0500 2543) struct fw_ohci *ohci = fw_ohci(card);
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 2544) struct context *ctx = &ohci->at_request_ctx;
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 2545) struct driver_data *driver_data = packet->driver_data;
2dbd7d7e2327b drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:45:45 +0100 2546) int ret = -ENOENT;
730c32f58ba81 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:32 -0500 2547)
f339fc16fba01 drivers/firewire/ohci.c (Sebastian Andrzej Siewior 2021-03-09 09:42:16 +0100 2548) tasklet_disable_in_atomic(&ctx->tasklet);
730c32f58ba81 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:32 -0500 2549)
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 2550) if (packet->ack != 0)
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 2551) goto out;
730c32f58ba81 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:32 -0500 2552)
19593ffdb6daa drivers/firewire/ohci.c (Stefan Richter 2009-10-14 20:40:10 +0200 2553) if (packet->payload_mapped)
1d1dc5e83f329 drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-10 00:20:38 +0100 2554) dma_unmap_single(ohci->card.device, packet->payload_bus,
1d1dc5e83f329 drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-10 00:20:38 +0100 2555) packet->payload_length, DMA_TO_DEVICE);
1d1dc5e83f329 drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-10 00:20:38 +0100 2556)
64d2172019dcf drivers/firewire/ohci.c (Stefan Richter 2011-12-20 21:32:46 +0100 2557) log_ar_at_event(ohci, 'T', packet->speed, packet->header, 0x20);
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 2558) driver_data->packet = NULL;
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 2559) packet->ack = RCODE_CANCELLED;
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 2560) packet->callback(packet, &ohci->card, packet->ack);
2dbd7d7e2327b drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:45:45 +0100 2561) ret = 0;
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 2562) out:
f319b6a02f12c drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:49 -0500 2563) tasklet_enable(&ctx->tasklet);
730c32f58ba81 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:32 -0500 2564)
2dbd7d7e2327b drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:45:45 +0100 2565) return ret;
730c32f58ba81 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:32 -0500 2566) }
730c32f58ba81 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:32 -0500 2567)
53dca51175cc2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:47:04 +0100 2568) static int ohci_enable_phys_dma(struct fw_card *card,
53dca51175cc2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:47:04 +0100 2569) int node_id, int generation)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2570) {
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2571) struct fw_ohci *ohci = fw_ohci(card);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2572) unsigned long flags;
2dbd7d7e2327b drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:45:45 +0100 2573) int n, ret = 0;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2574)
8bc588e0e585b drivers/firewire/ohci.c (Lubomir Rintel 2013-12-22 11:34:22 +0100 2575) if (param_remote_dma)
8bc588e0e585b drivers/firewire/ohci.c (Lubomir Rintel 2013-12-22 11:34:22 +0100 2576) return 0;
8bc588e0e585b drivers/firewire/ohci.c (Lubomir Rintel 2013-12-22 11:34:22 +0100 2577)
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 2578) /*
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 2579) * FIXME: Make sure this bitmask is cleared when we clear the busReset
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 2580) * interrupt bit. Clear physReqResourceAllBuses on bus reset.
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 2581) */
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2582)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2583) spin_lock_irqsave(&ohci->lock, flags);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2584)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2585) if (ohci->generation != generation) {
2dbd7d7e2327b drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:45:45 +0100 2586) ret = -ESTALE;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2587) goto out;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2588) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2589)
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 2590) /*
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 2591) * Note, if the node ID contains a non-local bus ID, physical DMA is
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 2592) * enabled for _all_ nodes on remote buses.
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 2593) */
907293d78872e drivers/firewire/fw-ohci.c (Stefan Richter 2007-01-23 21:11:43 +0100 2594)
907293d78872e drivers/firewire/fw-ohci.c (Stefan Richter 2007-01-23 21:11:43 +0100 2595) n = (node_id & 0xffc0) == LOCAL_BUS ? node_id & 0x3f : 63;
907293d78872e drivers/firewire/fw-ohci.c (Stefan Richter 2007-01-23 21:11:43 +0100 2596) if (n < 32)
907293d78872e drivers/firewire/fw-ohci.c (Stefan Richter 2007-01-23 21:11:43 +0100 2597) reg_write(ohci, OHCI1394_PhyReqFilterLoSet, 1 << n);
907293d78872e drivers/firewire/fw-ohci.c (Stefan Richter 2007-01-23 21:11:43 +0100 2598) else
907293d78872e drivers/firewire/fw-ohci.c (Stefan Richter 2007-01-23 21:11:43 +0100 2599) reg_write(ohci, OHCI1394_PhyReqFilterHiSet, 1 << (n - 32));
907293d78872e drivers/firewire/fw-ohci.c (Stefan Richter 2007-01-23 21:11:43 +0100 2600)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2601) flush_writes(ohci);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2602) out:
6cad95fe97dc0 drivers/firewire/fw-ohci.c (Stefan Richter 2007-01-21 20:46:45 +0100 2603) spin_unlock_irqrestore(&ohci->lock, flags);
2dbd7d7e2327b drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:45:45 +0100 2604)
2dbd7d7e2327b drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:45:45 +0100 2605) return ret;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2606) }
373b2edd864b8 drivers/firewire/fw-ohci.c (Stefan Richter 2007-03-04 14:45:18 +0100 2607)
0fcff4e39323f drivers/firewire/ohci.c (Stefan Richter 2010-06-12 20:35:52 +0200 2608) static u32 ohci_read_csr(struct fw_card *card, int csr_offset)
b677532b97127 drivers/firewire/ohci.c (Clemens Ladisch 2010-01-20 09:58:02 +0100 2609) {
60d32970c5a32 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:24:35 +0200 2610) struct fw_ohci *ohci = fw_ohci(card);
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 2611) unsigned long flags;
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 2612) u32 value;
60d32970c5a32 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:24:35 +0200 2613)
60d32970c5a32 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:24:35 +0200 2614) switch (csr_offset) {
4ffb7a6a066e4 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:36:37 +0200 2615) case CSR_STATE_CLEAR:
4ffb7a6a066e4 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:36:37 +0200 2616) case CSR_STATE_SET:
4ffb7a6a066e4 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:36:37 +0200 2617) if (ohci->is_root &&
4ffb7a6a066e4 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:36:37 +0200 2618) (reg_read(ohci, OHCI1394_LinkControlSet) &
4ffb7a6a066e4 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:36:37 +0200 2619) OHCI1394_LinkControl_cycleMaster))
c8a94ded57e9c drivers/firewire/ohci.c (Stefan Richter 2010-06-12 20:34:50 +0200 2620) value = CSR_STATE_BIT_CMSTR;
4ffb7a6a066e4 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:36:37 +0200 2621) else
c8a94ded57e9c drivers/firewire/ohci.c (Stefan Richter 2010-06-12 20:34:50 +0200 2622) value = 0;
c8a94ded57e9c drivers/firewire/ohci.c (Stefan Richter 2010-06-12 20:34:50 +0200 2623) if (ohci->csr_state_setclear_abdicate)
c8a94ded57e9c drivers/firewire/ohci.c (Stefan Richter 2010-06-12 20:34:50 +0200 2624) value |= CSR_STATE_BIT_ABDICATE;
b677532b97127 drivers/firewire/ohci.c (Clemens Ladisch 2010-01-20 09:58:02 +0100 2625)
c8a94ded57e9c drivers/firewire/ohci.c (Stefan Richter 2010-06-12 20:34:50 +0200 2626) return value;
4a9bde9b8ab55 drivers/firewire/ohci.c (Stefan Richter 2010-02-20 22:24:43 +0100 2627)
506f1a3193274 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:25:19 +0200 2628) case CSR_NODE_IDS:
506f1a3193274 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:25:19 +0200 2629) return reg_read(ohci, OHCI1394_NodeID) << 16;
506f1a3193274 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:25:19 +0200 2630)
60d32970c5a32 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:24:35 +0200 2631) case CSR_CYCLE_TIME:
60d32970c5a32 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:24:35 +0200 2632) return get_cycle_time(ohci);
60d32970c5a32 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:24:35 +0200 2633)
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 2634) case CSR_BUS_TIME:
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 2635) /*
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 2636) * We might be called just after the cycle timer has wrapped
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 2637) * around but just before the cycle64Seconds handler, so we
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 2638) * better check here, too, if the bus time needs to be updated.
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 2639) */
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 2640) spin_lock_irqsave(&ohci->lock, flags);
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 2641) value = update_bus_time(ohci);
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 2642) spin_unlock_irqrestore(&ohci->lock, flags);
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 2643) return value;
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 2644)
27a2329f8235d drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:34:13 +0200 2645) case CSR_BUSY_TIMEOUT:
27a2329f8235d drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:34:13 +0200 2646) value = reg_read(ohci, OHCI1394_ATRetries);
27a2329f8235d drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:34:13 +0200 2647) return (value >> 4) & 0x0ffff00f;
27a2329f8235d drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:34:13 +0200 2648)
a1a1132bd83d0 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:35:06 +0200 2649) case CSR_PRIORITY_BUDGET:
a1a1132bd83d0 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:35:06 +0200 2650) return (reg_read(ohci, OHCI1394_FairnessControl) & 0x3f) |
a1a1132bd83d0 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:35:06 +0200 2651) (ohci->pri_req_max << 8);
a1a1132bd83d0 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:35:06 +0200 2652)
60d32970c5a32 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:24:35 +0200 2653) default:
60d32970c5a32 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:24:35 +0200 2654) WARN_ON(1);
60d32970c5a32 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:24:35 +0200 2655) return 0;
60d32970c5a32 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:24:35 +0200 2656) }
b677532b97127 drivers/firewire/ohci.c (Clemens Ladisch 2010-01-20 09:58:02 +0100 2657) }
b677532b97127 drivers/firewire/ohci.c (Clemens Ladisch 2010-01-20 09:58:02 +0100 2658)
0fcff4e39323f drivers/firewire/ohci.c (Stefan Richter 2010-06-12 20:35:52 +0200 2659) static void ohci_write_csr(struct fw_card *card, int csr_offset, u32 value)
d60d7f1d5ce83 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:56 -0500 2660) {
d60d7f1d5ce83 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:56 -0500 2661) struct fw_ohci *ohci = fw_ohci(card);
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 2662) unsigned long flags;
d60d7f1d5ce83 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:56 -0500 2663)
506f1a3193274 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:25:19 +0200 2664) switch (csr_offset) {
4ffb7a6a066e4 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:36:37 +0200 2665) case CSR_STATE_CLEAR:
4ffb7a6a066e4 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:36:37 +0200 2666) if ((value & CSR_STATE_BIT_CMSTR) && ohci->is_root) {
4ffb7a6a066e4 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:36:37 +0200 2667) reg_write(ohci, OHCI1394_LinkControlClear,
4ffb7a6a066e4 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:36:37 +0200 2668) OHCI1394_LinkControl_cycleMaster);
4ffb7a6a066e4 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:36:37 +0200 2669) flush_writes(ohci);
4ffb7a6a066e4 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:36:37 +0200 2670) }
c8a94ded57e9c drivers/firewire/ohci.c (Stefan Richter 2010-06-12 20:34:50 +0200 2671) if (value & CSR_STATE_BIT_ABDICATE)
c8a94ded57e9c drivers/firewire/ohci.c (Stefan Richter 2010-06-12 20:34:50 +0200 2672) ohci->csr_state_setclear_abdicate = false;
4ffb7a6a066e4 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:36:37 +0200 2673) break;
4a9bde9b8ab55 drivers/firewire/ohci.c (Stefan Richter 2010-02-20 22:24:43 +0100 2674)
4ffb7a6a066e4 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:36:37 +0200 2675) case CSR_STATE_SET:
4ffb7a6a066e4 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:36:37 +0200 2676) if ((value & CSR_STATE_BIT_CMSTR) && ohci->is_root) {
4ffb7a6a066e4 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:36:37 +0200 2677) reg_write(ohci, OHCI1394_LinkControlSet,
4ffb7a6a066e4 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:36:37 +0200 2678) OHCI1394_LinkControl_cycleMaster);
4ffb7a6a066e4 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:36:37 +0200 2679) flush_writes(ohci);
4ffb7a6a066e4 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:36:37 +0200 2680) }
c8a94ded57e9c drivers/firewire/ohci.c (Stefan Richter 2010-06-12 20:34:50 +0200 2681) if (value & CSR_STATE_BIT_ABDICATE)
c8a94ded57e9c drivers/firewire/ohci.c (Stefan Richter 2010-06-12 20:34:50 +0200 2682) ohci->csr_state_setclear_abdicate = true;
4ffb7a6a066e4 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:36:37 +0200 2683) break;
d60d7f1d5ce83 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:56 -0500 2684)
506f1a3193274 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:25:19 +0200 2685) case CSR_NODE_IDS:
506f1a3193274 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:25:19 +0200 2686) reg_write(ohci, OHCI1394_NodeID, value >> 16);
506f1a3193274 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:25:19 +0200 2687) flush_writes(ohci);
506f1a3193274 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:25:19 +0200 2688) break;
506f1a3193274 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:25:19 +0200 2689)
9ab5071cd4a16 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:26:48 +0200 2690) case CSR_CYCLE_TIME:
9ab5071cd4a16 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:26:48 +0200 2691) reg_write(ohci, OHCI1394_IsochronousCycleTimer, value);
9ab5071cd4a16 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:26:48 +0200 2692) reg_write(ohci, OHCI1394_IntEventSet,
9ab5071cd4a16 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:26:48 +0200 2693) OHCI1394_cycleInconsistent);
9ab5071cd4a16 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:26:48 +0200 2694) flush_writes(ohci);
9ab5071cd4a16 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:26:48 +0200 2695) break;
9ab5071cd4a16 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:26:48 +0200 2696)
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 2697) case CSR_BUS_TIME:
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 2698) spin_lock_irqsave(&ohci->lock, flags);
9d60ef2bd87f2 drivers/firewire/ohci.c (Clemens Ladisch 2012-05-24 19:29:19 +0200 2699) ohci->bus_time = (update_bus_time(ohci) & 0x40) |
9d60ef2bd87f2 drivers/firewire/ohci.c (Clemens Ladisch 2012-05-24 19:29:19 +0200 2700) (value & ~0x7f);
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 2701) spin_unlock_irqrestore(&ohci->lock, flags);
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 2702) break;
a48777e03ad53 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:33:07 +0200 2703)
27a2329f8235d drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:34:13 +0200 2704) case CSR_BUSY_TIMEOUT:
27a2329f8235d drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:34:13 +0200 2705) value = (value & 0xf) | ((value & 0xf) << 4) |
27a2329f8235d drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:34:13 +0200 2706) ((value & 0xf) << 8) | ((value & 0x0ffff000) << 4);
27a2329f8235d drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:34:13 +0200 2707) reg_write(ohci, OHCI1394_ATRetries, value);
27a2329f8235d drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:34:13 +0200 2708) flush_writes(ohci);
27a2329f8235d drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:34:13 +0200 2709) break;
27a2329f8235d drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:34:13 +0200 2710)
a1a1132bd83d0 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:35:06 +0200 2711) case CSR_PRIORITY_BUDGET:
a1a1132bd83d0 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:35:06 +0200 2712) reg_write(ohci, OHCI1394_FairnessControl, value & 0x3f);
a1a1132bd83d0 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:35:06 +0200 2713) flush_writes(ohci);
a1a1132bd83d0 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:35:06 +0200 2714) break;
a1a1132bd83d0 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:35:06 +0200 2715)
506f1a3193274 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:25:19 +0200 2716) default:
506f1a3193274 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:25:19 +0200 2717) WARN_ON(1);
506f1a3193274 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:25:19 +0200 2718) break;
506f1a3193274 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-10 08:25:19 +0200 2719) }
d60d7f1d5ce83 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:56 -0500 2720) }
d60d7f1d5ce83 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-07 12:12:56 -0500 2721)
910e76c607546 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:04:43 +0100 2722) static void flush_iso_completions(struct iso_context *ctx)
1aa292bb1c535 drivers/firewire/fw-ohci.c (David Moore 2008-07-22 23:23:40 -0700 2723) {
910e76c607546 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:04:43 +0100 2724) ctx->base.callback.sc(&ctx->base, ctx->last_timestamp,
910e76c607546 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:04:43 +0100 2725) ctx->header_length, ctx->header,
910e76c607546 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:04:43 +0100 2726) ctx->base.callback_data);
910e76c607546 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:04:43 +0100 2727) ctx->header_length = 0;
910e76c607546 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:04:43 +0100 2728) }
1aa292bb1c535 drivers/firewire/fw-ohci.c (David Moore 2008-07-22 23:23:40 -0700 2729)
73864012f386c drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:04:05 +0100 2730) static void copy_iso_headers(struct iso_context *ctx, const u32 *dma_hdr)
1aa292bb1c535 drivers/firewire/fw-ohci.c (David Moore 2008-07-22 23:23:40 -0700 2731) {
73864012f386c drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:04:05 +0100 2732) u32 *ctx_hdr;
1aa292bb1c535 drivers/firewire/fw-ohci.c (David Moore 2008-07-22 23:23:40 -0700 2733)
0699a73af3811 drivers/firewire/ohci.c (Clemens Ladisch 2013-07-22 21:32:09 +0200 2734) if (ctx->header_length + ctx->base.header_size > PAGE_SIZE) {
0699a73af3811 drivers/firewire/ohci.c (Clemens Ladisch 2013-07-22 21:32:09 +0200 2735) if (ctx->base.drop_overflow_headers)
0699a73af3811 drivers/firewire/ohci.c (Clemens Ladisch 2013-07-22 21:32:09 +0200 2736) return;
18d627113b830 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:05:29 +0100 2737) flush_iso_completions(ctx);
0699a73af3811 drivers/firewire/ohci.c (Clemens Ladisch 2013-07-22 21:32:09 +0200 2738) }
1aa292bb1c535 drivers/firewire/fw-ohci.c (David Moore 2008-07-22 23:23:40 -0700 2739)
73864012f386c drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:04:05 +0100 2740) ctx_hdr = ctx->header + ctx->header_length;
910e76c607546 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:04:43 +0100 2741) ctx->last_timestamp = (u16)le32_to_cpu((__force __le32)dma_hdr[0]);
1aa292bb1c535 drivers/firewire/fw-ohci.c (David Moore 2008-07-22 23:23:40 -0700 2742)
1aa292bb1c535 drivers/firewire/fw-ohci.c (David Moore 2008-07-22 23:23:40 -0700 2743) /*
32c507f7b73d7 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:01:39 +0100 2744) * The two iso header quadlets are byteswapped to little
32c507f7b73d7 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:01:39 +0100 2745) * endian by the controller, but we want to present them
32c507f7b73d7 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:01:39 +0100 2746) * as big endian for consistency with the bus endianness.
1aa292bb1c535 drivers/firewire/fw-ohci.c (David Moore 2008-07-22 23:23:40 -0700 2747) */
1aa292bb1c535 drivers/firewire/fw-ohci.c (David Moore 2008-07-22 23:23:40 -0700 2748) if (ctx->base.header_size > 0)
73864012f386c drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:04:05 +0100 2749) ctx_hdr[0] = swab32(dma_hdr[1]); /* iso packet header */
1aa292bb1c535 drivers/firewire/fw-ohci.c (David Moore 2008-07-22 23:23:40 -0700 2750) if (ctx->base.header_size > 4)
73864012f386c drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:04:05 +0100 2751) ctx_hdr[1] = swab32(dma_hdr[0]); /* timestamp */
1aa292bb1c535 drivers/firewire/fw-ohci.c (David Moore 2008-07-22 23:23:40 -0700 2752) if (ctx->base.header_size > 8)
73864012f386c drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:04:05 +0100 2753) memcpy(&ctx_hdr[2], &dma_hdr[2], ctx->base.header_size - 8);
1aa292bb1c535 drivers/firewire/fw-ohci.c (David Moore 2008-07-22 23:23:40 -0700 2754) ctx->header_length += ctx->base.header_size;
1aa292bb1c535 drivers/firewire/fw-ohci.c (David Moore 2008-07-22 23:23:40 -0700 2755) }
1aa292bb1c535 drivers/firewire/fw-ohci.c (David Moore 2008-07-22 23:23:40 -0700 2756)
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 2757) static int handle_ir_packet_per_buffer(struct context *context,
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 2758) struct descriptor *d,
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 2759) struct descriptor *last)
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 2760) {
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 2761) struct iso_context *ctx =
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 2762) container_of(context, struct iso_context, context);
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 2763) struct descriptor *pd;
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2764) u32 buffer_dma;
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 2765)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2766) for (pd = d; pd <= last; pd++)
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 2767) if (pd->transfer_status)
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 2768) break;
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 2769) if (pd > last)
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 2770) /* Descriptor(s) not done yet, stop iteration */
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 2771) return 0;
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 2772)
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2773) while (!(d->control & cpu_to_le16(DESCRIPTOR_BRANCH_ALWAYS))) {
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2774) d++;
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2775) buffer_dma = le32_to_cpu(d->data_address);
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2776) dma_sync_single_range_for_cpu(context->ohci->card.device,
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2777) buffer_dma & PAGE_MASK,
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2778) buffer_dma & ~PAGE_MASK,
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2779) le16_to_cpu(d->req_count),
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2780) DMA_FROM_DEVICE);
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2781) }
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2782)
910e76c607546 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:04:43 +0100 2783) copy_iso_headers(ctx, (u32 *) (last + 1));
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 2784)
910e76c607546 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:04:43 +0100 2785) if (last->control & cpu_to_le16(DESCRIPTOR_IRQ_ALWAYS))
910e76c607546 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:04:43 +0100 2786) flush_iso_completions(ctx);
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 2787)
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 2788) return 1;
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 2789) }
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 2790)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2791) /* d == last because each descriptor block is only a single descriptor. */
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2792) static int handle_ir_buffer_fill(struct context *context,
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2793) struct descriptor *d,
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2794) struct descriptor *last)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2795) {
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2796) struct iso_context *ctx =
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2797) container_of(context, struct iso_context, context);
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2798) unsigned int req_count, res_count, completed;
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2799) u32 buffer_dma;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2800)
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2801) req_count = le16_to_cpu(last->req_count);
6aa7de059173a drivers/firewire/ohci.c (Mark Rutland 2017-10-23 14:07:29 -0700 2802) res_count = le16_to_cpu(READ_ONCE(last->res_count));
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2803) completed = req_count - res_count;
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2804) buffer_dma = le32_to_cpu(last->data_address);
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2805)
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2806) if (completed > 0) {
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2807) ctx->mc_buffer_bus = buffer_dma;
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2808) ctx->mc_completed = completed;
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2809) }
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2810)
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2811) if (res_count != 0)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2812) /* Descriptor(s) not done yet, stop iteration */
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2813) return 0;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2814)
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2815) dma_sync_single_range_for_cpu(context->ohci->card.device,
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2816) buffer_dma & PAGE_MASK,
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2817) buffer_dma & ~PAGE_MASK,
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2818) completed, DMA_FROM_DEVICE);
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2819)
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2820) if (last->control & cpu_to_le16(DESCRIPTOR_IRQ_ALWAYS)) {
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2821) ctx->base.callback.mc(&ctx->base,
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2822) buffer_dma + completed,
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2823) ctx->base.callback_data);
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2824) ctx->mc_completed = 0;
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2825) }
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2826)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2827) return 1;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2828) }
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2829)
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2830) static void flush_ir_buffer_fill(struct iso_context *ctx)
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2831) {
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2832) dma_sync_single_range_for_cpu(ctx->context.ohci->card.device,
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2833) ctx->mc_buffer_bus & PAGE_MASK,
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2834) ctx->mc_buffer_bus & ~PAGE_MASK,
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2835) ctx->mc_completed, DMA_FROM_DEVICE);
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2836)
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2837) ctx->base.callback.mc(&ctx->base,
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2838) ctx->mc_buffer_bus + ctx->mc_completed,
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2839) ctx->base.callback_data);
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2840) ctx->mc_completed = 0;
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2841) }
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2842)
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2843) static inline void sync_it_packet_for_cpu(struct context *context,
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2844) struct descriptor *pd)
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2845) {
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2846) __le16 control;
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2847) u32 buffer_dma;
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2848)
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2849) /* only packets beginning with OUTPUT_MORE* have data buffers */
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2850) if (pd->control & cpu_to_le16(DESCRIPTOR_BRANCH_ALWAYS))
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2851) return;
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2852)
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2853) /* skip over the OUTPUT_MORE_IMMEDIATE descriptor */
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2854) pd += 2;
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2855)
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2856) /*
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2857) * If the packet has a header, the first OUTPUT_MORE/LAST descriptor's
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2858) * data buffer is in the context program's coherent page and must not
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2859) * be synced.
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2860) */
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2861) if ((le32_to_cpu(pd->data_address) & PAGE_MASK) ==
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2862) (context->current_bus & PAGE_MASK)) {
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2863) if (pd->control & cpu_to_le16(DESCRIPTOR_BRANCH_ALWAYS))
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2864) return;
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2865) pd++;
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2866) }
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2867)
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2868) do {
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2869) buffer_dma = le32_to_cpu(pd->data_address);
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2870) dma_sync_single_range_for_cpu(context->ohci->card.device,
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2871) buffer_dma & PAGE_MASK,
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2872) buffer_dma & ~PAGE_MASK,
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2873) le16_to_cpu(pd->req_count),
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2874) DMA_TO_DEVICE);
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2875) control = pd->control;
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2876) pd++;
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2877) } while (!(control & cpu_to_le16(DESCRIPTOR_BRANCH_ALWAYS)));
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2878) }
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2879)
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 2880) static int handle_it_packet(struct context *context,
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 2881) struct descriptor *d,
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 2882) struct descriptor *last)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2883) {
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 2884) struct iso_context *ctx =
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 2885) container_of(context, struct iso_context, context);
31769cef2e973 drivers/firewire/ohci.c (Jay Fenlason 2009-11-21 00:05:56 +0100 2886) struct descriptor *pd;
73864012f386c drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:04:05 +0100 2887) __be32 *ctx_hdr;
373b2edd864b8 drivers/firewire/fw-ohci.c (Stefan Richter 2007-03-04 14:45:18 +0100 2888)
31769cef2e973 drivers/firewire/ohci.c (Jay Fenlason 2009-11-21 00:05:56 +0100 2889) for (pd = d; pd <= last; pd++)
31769cef2e973 drivers/firewire/ohci.c (Jay Fenlason 2009-11-21 00:05:56 +0100 2890) if (pd->transfer_status)
31769cef2e973 drivers/firewire/ohci.c (Jay Fenlason 2009-11-21 00:05:56 +0100 2891) break;
31769cef2e973 drivers/firewire/ohci.c (Jay Fenlason 2009-11-21 00:05:56 +0100 2892) if (pd > last)
31769cef2e973 drivers/firewire/ohci.c (Jay Fenlason 2009-11-21 00:05:56 +0100 2893) /* Descriptor(s) not done yet, stop iteration */
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 2894) return 0;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 2895)
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2896) sync_it_packet_for_cpu(context, d);
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 2897)
0699a73af3811 drivers/firewire/ohci.c (Clemens Ladisch 2013-07-22 21:32:09 +0200 2898) if (ctx->header_length + 4 > PAGE_SIZE) {
0699a73af3811 drivers/firewire/ohci.c (Clemens Ladisch 2013-07-22 21:32:09 +0200 2899) if (ctx->base.drop_overflow_headers)
0699a73af3811 drivers/firewire/ohci.c (Clemens Ladisch 2013-07-22 21:32:09 +0200 2900) return 1;
18d627113b830 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:05:29 +0100 2901) flush_iso_completions(ctx);
0699a73af3811 drivers/firewire/ohci.c (Clemens Ladisch 2013-07-22 21:32:09 +0200 2902) }
910e76c607546 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:04:43 +0100 2903)
18d627113b830 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:05:29 +0100 2904) ctx_hdr = ctx->header + ctx->header_length;
910e76c607546 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:04:43 +0100 2905) ctx->last_timestamp = le16_to_cpu(last->res_count);
18d627113b830 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:05:29 +0100 2906) /* Present this value as big-endian to match the receive code */
18d627113b830 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:05:29 +0100 2907) *ctx_hdr = cpu_to_be32((le16_to_cpu(pd->transfer_status) << 16) |
18d627113b830 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:05:29 +0100 2908) le16_to_cpu(pd->res_count));
18d627113b830 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:05:29 +0100 2909) ctx->header_length += 4;
18d627113b830 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:05:29 +0100 2910)
910e76c607546 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:04:43 +0100 2911) if (last->control & cpu_to_le16(DESCRIPTOR_IRQ_ALWAYS))
910e76c607546 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:04:43 +0100 2912) flush_iso_completions(ctx);
910e76c607546 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:04:43 +0100 2913)
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 2914) return 1;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2915) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2916)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2917) static void set_multichannel_mask(struct fw_ohci *ohci, u64 channels)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2918) {
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2919) u32 hi = channels >> 32, lo = channels;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2920)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2921) reg_write(ohci, OHCI1394_IRMultiChanMaskHiClear, ~hi);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2922) reg_write(ohci, OHCI1394_IRMultiChanMaskLoClear, ~lo);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2923) reg_write(ohci, OHCI1394_IRMultiChanMaskHiSet, hi);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2924) reg_write(ohci, OHCI1394_IRMultiChanMaskLoSet, lo);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2925) ohci->mc_channels = channels;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2926) }
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2927)
53dca51175cc2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:47:04 +0100 2928) static struct fw_iso_context *ohci_allocate_iso_context(struct fw_card *card,
4817ed240232e drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-21 16:39:46 +0100 2929) int type, int channel, size_t header_size)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2930) {
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2931) struct fw_ohci *ohci = fw_ohci(card);
3f649ab728cda drivers/firewire/ohci.c (Kees Cook 2020-06-03 13:09:38 -0700 2932) struct iso_context *ctx;
3f649ab728cda drivers/firewire/ohci.c (Kees Cook 2020-06-03 13:09:38 -0700 2933) descriptor_callback_t callback;
3f649ab728cda drivers/firewire/ohci.c (Kees Cook 2020-06-03 13:09:38 -0700 2934) u64 *channels;
3f649ab728cda drivers/firewire/ohci.c (Kees Cook 2020-06-03 13:09:38 -0700 2935) u32 *mask, regs;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2936) int index, ret = -EBUSY;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2937)
8a8c47364eef8 drivers/firewire/ohci.c (Stefan Richter 2012-04-09 21:40:33 +0200 2938) spin_lock_irq(&ohci->lock);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2939)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2940) switch (type) {
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2941) case FW_ISO_CONTEXT_TRANSMIT:
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2942) mask = &ohci->it_context_mask;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 2943) callback = handle_it_packet;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2944) index = ffs(*mask) - 1;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2945) if (index >= 0) {
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2946) *mask &= ~(1 << index);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2947) regs = OHCI1394_IsoXmitContextBase(index);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2948) ctx = &ohci->it_context_list[index];
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2949) }
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2950) break;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2951)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2952) case FW_ISO_CONTEXT_RECEIVE:
4817ed240232e drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-21 16:39:46 +0100 2953) channels = &ohci->ir_context_channels;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2954) mask = &ohci->ir_context_mask;
6498ba04aee69 drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:57:05 +0100 2955) callback = handle_ir_packet_per_buffer;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2956) index = *channels & 1ULL << channel ? ffs(*mask) - 1 : -1;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2957) if (index >= 0) {
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2958) *channels &= ~(1ULL << channel);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2959) *mask &= ~(1 << index);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2960) regs = OHCI1394_IsoRcvContextBase(index);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2961) ctx = &ohci->ir_context_list[index];
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2962) }
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2963) break;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2964)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2965) case FW_ISO_CONTEXT_RECEIVE_MULTICHANNEL:
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2966) mask = &ohci->ir_context_mask;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2967) callback = handle_ir_buffer_fill;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2968) index = !ohci->mc_allocated ? ffs(*mask) - 1 : -1;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2969) if (index >= 0) {
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2970) ohci->mc_allocated = true;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2971) *mask &= ~(1 << index);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2972) regs = OHCI1394_IsoRcvContextBase(index);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2973) ctx = &ohci->ir_context_list[index];
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2974) }
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2975) break;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2976)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2977) default:
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2978) index = -1;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2979) ret = -ENOSYS;
4817ed240232e drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-21 16:39:46 +0100 2980) }
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2981)
8a8c47364eef8 drivers/firewire/ohci.c (Stefan Richter 2012-04-09 21:40:33 +0200 2982) spin_unlock_irq(&ohci->lock);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2983)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2984) if (index < 0)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2985) return ERR_PTR(ret);
373b2edd864b8 drivers/firewire/fw-ohci.c (Stefan Richter 2007-03-04 14:45:18 +0100 2986)
2d826cc5c791b drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-09 19:23:14 -0400 2987) memset(ctx, 0, sizeof(*ctx));
9b32d5f3074e9 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:44 -0500 2988) ctx->header_length = 0;
9b32d5f3074e9 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:44 -0500 2989) ctx->header = (void *) __get_free_page(GFP_KERNEL);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2990) if (ctx->header == NULL) {
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2991) ret = -ENOMEM;
9b32d5f3074e9 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:44 -0500 2992) goto out;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2993) }
2dbd7d7e2327b drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:45:45 +0100 2994) ret = context_init(&ctx->context, ohci, regs, callback);
2dbd7d7e2327b drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:45:45 +0100 2995) if (ret < 0)
9b32d5f3074e9 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:44 -0500 2996) goto out_with_header;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 2997)
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 2998) if (type == FW_ISO_CONTEXT_RECEIVE_MULTICHANNEL) {
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 2999) set_multichannel_mask(ohci, 0);
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3000) ctx->mc_completed = 0;
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3001) }
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3002)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3003) return &ctx->base;
9b32d5f3074e9 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:44 -0500 3004)
9b32d5f3074e9 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:44 -0500 3005) out_with_header:
9b32d5f3074e9 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:44 -0500 3006) free_page((unsigned long)ctx->header);
9b32d5f3074e9 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:44 -0500 3007) out:
8a8c47364eef8 drivers/firewire/ohci.c (Stefan Richter 2012-04-09 21:40:33 +0200 3008) spin_lock_irq(&ohci->lock);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3009)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3010) switch (type) {
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3011) case FW_ISO_CONTEXT_RECEIVE:
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3012) *channels |= 1ULL << channel;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3013) break;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3014)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3015) case FW_ISO_CONTEXT_RECEIVE_MULTICHANNEL:
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3016) ohci->mc_allocated = false;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3017) break;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3018) }
9b32d5f3074e9 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:44 -0500 3019) *mask |= 1 << index;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3020)
8a8c47364eef8 drivers/firewire/ohci.c (Stefan Richter 2012-04-09 21:40:33 +0200 3021) spin_unlock_irq(&ohci->lock);
9b32d5f3074e9 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:44 -0500 3022)
2dbd7d7e2327b drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:45:45 +0100 3023) return ERR_PTR(ret);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3024) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3025)
eb0306eac0aad drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-14 17:34:54 -0400 3026) static int ohci_start_iso(struct fw_iso_context *base,
eb0306eac0aad drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-14 17:34:54 -0400 3027) s32 cycle, u32 sync, u32 tags)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3028) {
373b2edd864b8 drivers/firewire/fw-ohci.c (Stefan Richter 2007-03-04 14:45:18 +0100 3029) struct iso_context *ctx = container_of(base, struct iso_context, base);
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 3030) struct fw_ohci *ohci = ctx->context.ohci;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3031) u32 control = IR_CONTEXT_ISOCH_HEADER, match;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3032) int index;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3033)
44b74d909dc94 drivers/firewire/ohci.c (Clemens Ladisch 2011-02-23 09:27:40 +0100 3034) /* the controller cannot start without any queued packets */
44b74d909dc94 drivers/firewire/ohci.c (Clemens Ladisch 2011-02-23 09:27:40 +0100 3035) if (ctx->context.last->branch_address == 0)
44b74d909dc94 drivers/firewire/ohci.c (Clemens Ladisch 2011-02-23 09:27:40 +0100 3036) return -ENODATA;
44b74d909dc94 drivers/firewire/ohci.c (Clemens Ladisch 2011-02-23 09:27:40 +0100 3037)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3038) switch (ctx->base.type) {
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3039) case FW_ISO_CONTEXT_TRANSMIT:
295e3feb92e50 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:40 -0500 3040) index = ctx - ohci->it_context_list;
8a2f7d932fc6a drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-28 14:26:10 -0400 3041) match = 0;
8a2f7d932fc6a drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-28 14:26:10 -0400 3042) if (cycle >= 0)
8a2f7d932fc6a drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-28 14:26:10 -0400 3043) match = IT_CONTEXT_CYCLE_MATCH_ENABLE |
295e3feb92e50 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:40 -0500 3044) (cycle & 0x7fff) << 16;
21efb3cfc6ed4 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:50 -0500 3045)
295e3feb92e50 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:40 -0500 3046) reg_write(ohci, OHCI1394_IsoXmitIntEventClear, 1 << index);
295e3feb92e50 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:40 -0500 3047) reg_write(ohci, OHCI1394_IsoXmitIntMaskSet, 1 << index);
8a2f7d932fc6a drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-28 14:26:10 -0400 3048) context_run(&ctx->context, match);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3049) break;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3050)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3051) case FW_ISO_CONTEXT_RECEIVE_MULTICHANNEL:
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3052) control |= IR_CONTEXT_BUFFER_FILL|IR_CONTEXT_MULTI_CHANNEL_MODE;
df561f6688fef drivers/firewire/ohci.c (Gustavo A. R. Silva 2020-08-23 17:36:59 -0500 3053) fallthrough;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3054) case FW_ISO_CONTEXT_RECEIVE:
295e3feb92e50 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:40 -0500 3055) index = ctx - ohci->ir_context_list;
8a2f7d932fc6a drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-28 14:26:10 -0400 3056) match = (tags << 28) | (sync << 8) | ctx->base.channel;
8a2f7d932fc6a drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-28 14:26:10 -0400 3057) if (cycle >= 0) {
8a2f7d932fc6a drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-28 14:26:10 -0400 3058) match |= (cycle & 0x07fff) << 12;
8a2f7d932fc6a drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-28 14:26:10 -0400 3059) control |= IR_CONTEXT_CYCLE_MATCH_ENABLE;
8a2f7d932fc6a drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-28 14:26:10 -0400 3060) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3061)
295e3feb92e50 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:40 -0500 3062) reg_write(ohci, OHCI1394_IsoRecvIntEventClear, 1 << index);
295e3feb92e50 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:40 -0500 3063) reg_write(ohci, OHCI1394_IsoRecvIntMaskSet, 1 << index);
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 3064) reg_write(ohci, CONTEXT_MATCH(ctx->context.regs), match);
8a2f7d932fc6a drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-03-28 14:26:10 -0400 3065) context_run(&ctx->context, control);
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3066)
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3067) ctx->sync = sync;
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3068) ctx->tags = tags;
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3069)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3070) break;
295e3feb92e50 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:40 -0500 3071) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3072)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3073) return 0;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3074) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3075)
b82956685aab4 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:42 -0500 3076) static int ohci_stop_iso(struct fw_iso_context *base)
b82956685aab4 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:42 -0500 3077) {
b82956685aab4 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:42 -0500 3078) struct fw_ohci *ohci = fw_ohci(base->card);
373b2edd864b8 drivers/firewire/fw-ohci.c (Stefan Richter 2007-03-04 14:45:18 +0100 3079) struct iso_context *ctx = container_of(base, struct iso_context, base);
b82956685aab4 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:42 -0500 3080) int index;
b82956685aab4 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:42 -0500 3081)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3082) switch (ctx->base.type) {
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3083) case FW_ISO_CONTEXT_TRANSMIT:
b82956685aab4 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:42 -0500 3084) index = ctx - ohci->it_context_list;
b82956685aab4 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:42 -0500 3085) reg_write(ohci, OHCI1394_IsoXmitIntMaskClear, 1 << index);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3086) break;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3087)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3088) case FW_ISO_CONTEXT_RECEIVE:
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3089) case FW_ISO_CONTEXT_RECEIVE_MULTICHANNEL:
b82956685aab4 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:42 -0500 3090) index = ctx - ohci->ir_context_list;
b82956685aab4 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:42 -0500 3091) reg_write(ohci, OHCI1394_IsoRecvIntMaskClear, 1 << index);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3092) break;
b82956685aab4 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:42 -0500 3093) }
b82956685aab4 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:42 -0500 3094) flush_writes(ohci);
b82956685aab4 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:42 -0500 3095) context_stop(&ctx->context);
e81cbebdfc384 drivers/firewire/ohci.c (Clemens Ladisch 2011-02-16 10:32:11 +0100 3096) tasklet_kill(&ctx->context.tasklet);
b82956685aab4 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:42 -0500 3097)
b82956685aab4 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:42 -0500 3098) return 0;
b82956685aab4 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:42 -0500 3099) }
b82956685aab4 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:42 -0500 3100)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3101) static void ohci_free_iso_context(struct fw_iso_context *base)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3102) {
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3103) struct fw_ohci *ohci = fw_ohci(base->card);
373b2edd864b8 drivers/firewire/fw-ohci.c (Stefan Richter 2007-03-04 14:45:18 +0100 3104) struct iso_context *ctx = container_of(base, struct iso_context, base);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3105) unsigned long flags;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3106) int index;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3107)
b82956685aab4 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:42 -0500 3108) ohci_stop_iso(base);
b82956685aab4 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:42 -0500 3109) context_release(&ctx->context);
9b32d5f3074e9 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:44 -0500 3110) free_page((unsigned long)ctx->header);
b82956685aab4 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:42 -0500 3111)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3112) spin_lock_irqsave(&ohci->lock, flags);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3113)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3114) switch (base->type) {
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3115) case FW_ISO_CONTEXT_TRANSMIT:
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3116) index = ctx - ohci->it_context_list;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3117) ohci->it_context_mask |= 1 << index;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3118) break;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3119)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3120) case FW_ISO_CONTEXT_RECEIVE:
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3121) index = ctx - ohci->ir_context_list;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3122) ohci->ir_context_mask |= 1 << index;
4817ed240232e drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-21 16:39:46 +0100 3123) ohci->ir_context_channels |= 1ULL << base->channel;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3124) break;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3125)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3126) case FW_ISO_CONTEXT_RECEIVE_MULTICHANNEL:
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3127) index = ctx - ohci->ir_context_list;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3128) ohci->ir_context_mask |= 1 << index;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3129) ohci->ir_context_channels |= ohci->mc_channels;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3130) ohci->mc_channels = 0;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3131) ohci->mc_allocated = false;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3132) break;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3133) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3134)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3135) spin_unlock_irqrestore(&ohci->lock, flags);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3136) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3137)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3138) static int ohci_set_iso_channels(struct fw_iso_context *base, u64 *channels)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3139) {
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3140) struct fw_ohci *ohci = fw_ohci(base->card);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3141) unsigned long flags;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3142) int ret;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3143)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3144) switch (base->type) {
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3145) case FW_ISO_CONTEXT_RECEIVE_MULTICHANNEL:
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3146)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3147) spin_lock_irqsave(&ohci->lock, flags);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3148)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3149) /* Don't allow multichannel to grab other contexts' channels. */
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3150) if (~ohci->ir_context_channels & ~ohci->mc_channels & *channels) {
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3151) *channels = ohci->ir_context_channels;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3152) ret = -EBUSY;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3153) } else {
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3154) set_multichannel_mask(ohci, *channels);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3155) ret = 0;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3156) }
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3157)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3158) spin_unlock_irqrestore(&ohci->lock, flags);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3159)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3160) break;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3161) default:
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3162) ret = -EINVAL;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3163) }
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3164)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3165) return ret;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3166) }
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3167)
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3168) #ifdef CONFIG_PM
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3169) static void ohci_resume_iso_dma(struct fw_ohci *ohci)
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3170) {
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3171) int i;
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3172) struct iso_context *ctx;
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3173)
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3174) for (i = 0 ; i < ohci->n_ir ; i++) {
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3175) ctx = &ohci->ir_context_list[i];
693a50b511818 drivers/firewire/ohci.c (Stefan Richter 2011-01-01 15:17:05 +0100 3176) if (ctx->context.running)
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3177) ohci_start_iso(&ctx->base, 0, ctx->sync, ctx->tags);
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3178) }
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3179)
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3180) for (i = 0 ; i < ohci->n_it ; i++) {
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3181) ctx = &ohci->it_context_list[i];
693a50b511818 drivers/firewire/ohci.c (Stefan Richter 2011-01-01 15:17:05 +0100 3182) if (ctx->context.running)
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3183) ohci_start_iso(&ctx->base, 0, ctx->sync, ctx->tags);
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3184) }
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3185) }
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3186) #endif
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3187)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3188) static int queue_iso_transmit(struct iso_context *ctx,
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3189) struct fw_iso_packet *packet,
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3190) struct fw_iso_buffer *buffer,
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3191) unsigned long payload)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3192) {
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 3193) struct descriptor *d, *last, *pd;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3194) struct fw_iso_packet *p;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3195) __le32 *header;
9aad8125389a7 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:38 -0500 3196) dma_addr_t d_bus, page_bus;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3197) u32 z, header_z, payload_z, irq;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3198) u32 payload_index, payload_end_index, next_page_index;
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 3199) int page, end_page, i, length, offset;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3200)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3201) p = packet;
9aad8125389a7 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:38 -0500 3202) payload_index = payload;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3203)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3204) if (p->skip)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3205) z = 1;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3206) else
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3207) z = 2;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3208) if (p->header_length > 0)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3209) z++;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3210)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3211) /* Determine the first page the payload isn't contained in. */
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3212) end_page = PAGE_ALIGN(payload_index + p->payload_length) >> PAGE_SHIFT;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3213) if (p->payload_length > 0)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3214) payload_z = end_page - (payload_index >> PAGE_SHIFT);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3215) else
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3216) payload_z = 0;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3217)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3218) z += payload_z;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3219)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3220) /* Get header size in number of descriptors. */
2d826cc5c791b drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-09 19:23:14 -0400 3221) header_z = DIV_ROUND_UP(p->header_length, sizeof(*d));
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3222)
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 3223) d = context_get_descriptors(&ctx->context, z + header_z, &d_bus);
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 3224) if (d == NULL)
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 3225) return -ENOMEM;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3226)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3227) if (!p->skip) {
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 3228) d[0].control = cpu_to_le16(DESCRIPTOR_KEY_IMMEDIATE);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3229) d[0].req_count = cpu_to_le16(8);
7f51a100bba51 drivers/firewire/ohci.c (Clemens Ladisch 2010-02-08 08:30:03 +0100 3230) /*
7f51a100bba51 drivers/firewire/ohci.c (Clemens Ladisch 2010-02-08 08:30:03 +0100 3231) * Link the skip address to this descriptor itself. This causes
7f51a100bba51 drivers/firewire/ohci.c (Clemens Ladisch 2010-02-08 08:30:03 +0100 3232) * a context to skip a cycle whenever lost cycles or FIFO
7f51a100bba51 drivers/firewire/ohci.c (Clemens Ladisch 2010-02-08 08:30:03 +0100 3233) * overruns occur, without dropping the data. The application
7f51a100bba51 drivers/firewire/ohci.c (Clemens Ladisch 2010-02-08 08:30:03 +0100 3234) * should then decide whether this is an error condition or not.
7f51a100bba51 drivers/firewire/ohci.c (Clemens Ladisch 2010-02-08 08:30:03 +0100 3235) * FIXME: Make the context's cycle-lost behaviour configurable?
7f51a100bba51 drivers/firewire/ohci.c (Clemens Ladisch 2010-02-08 08:30:03 +0100 3236) */
7f51a100bba51 drivers/firewire/ohci.c (Clemens Ladisch 2010-02-08 08:30:03 +0100 3237) d[0].branch_address = cpu_to_le32(d_bus | z);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3238)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3239) header = (__le32 *) &d[1];
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 3240) header[0] = cpu_to_le32(IT_HEADER_SY(p->sy) |
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 3241) IT_HEADER_TAG(p->tag) |
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 3242) IT_HEADER_TCODE(TCODE_STREAM_DATA) |
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 3243) IT_HEADER_CHANNEL(ctx->base.channel) |
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 3244) IT_HEADER_SPEED(ctx->base.speed));
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3245) header[1] =
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 3246) cpu_to_le32(IT_HEADER_DATA_LENGTH(p->header_length +
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3247) p->payload_length));
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3248) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3249)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3250) if (p->header_length > 0) {
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3251) d[2].req_count = cpu_to_le16(p->header_length);
2d826cc5c791b drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-09 19:23:14 -0400 3252) d[2].data_address = cpu_to_le32(d_bus + z * sizeof(*d));
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3253) memcpy(&d[z], p->header, p->header_length);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3254) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3255)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3256) pd = d + z - payload_z;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3257) payload_end_index = payload_index + p->payload_length;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3258) for (i = 0; i < payload_z; i++) {
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3259) page = payload_index >> PAGE_SHIFT;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3260) offset = payload_index & ~PAGE_MASK;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3261) next_page_index = (page + 1) << PAGE_SHIFT;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3262) length =
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3263) min(next_page_index, payload_end_index) - payload_index;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3264) pd[i].req_count = cpu_to_le16(length);
9aad8125389a7 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:38 -0500 3265)
9aad8125389a7 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:38 -0500 3266) page_bus = page_private(buffer->pages[page]);
9aad8125389a7 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:38 -0500 3267) pd[i].data_address = cpu_to_le32(page_bus + offset);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3268)
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 3269) dma_sync_single_range_for_device(ctx->context.ohci->card.device,
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 3270) page_bus, offset, length,
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 3271) DMA_TO_DEVICE);
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 3272)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3273) payload_index += length;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3274) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3275)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3276) if (p->interrupt)
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 3277) irq = DESCRIPTOR_IRQ_ALWAYS;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3278) else
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 3279) irq = DESCRIPTOR_NO_IRQ;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3280)
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 3281) last = z == 2 ? d : d + z - 1;
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 3282) last->control |= cpu_to_le16(DESCRIPTOR_OUTPUT_LAST |
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 3283) DESCRIPTOR_STATUS |
a77754a75d58d drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:35 -0400 3284) DESCRIPTOR_BRANCH_ALWAYS |
cbb59da719e41 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:35 -0500 3285) irq);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3286)
30200739e6129 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:39 -0500 3287) context_append(&ctx->context, d, z, header_z);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3288)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3289) return 0;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3290) }
373b2edd864b8 drivers/firewire/fw-ohci.c (Stefan Richter 2007-03-04 14:45:18 +0100 3291)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3292) static int queue_iso_packet_per_buffer(struct iso_context *ctx,
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3293) struct fw_iso_packet *packet,
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3294) struct fw_iso_buffer *buffer,
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3295) unsigned long payload)
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3296) {
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 3297) struct device *device = ctx->context.ohci->card.device;
8c0c0cc2d9f4c drivers/firewire/ohci.c (Jay Fenlason 2009-12-11 14:23:58 -0500 3298) struct descriptor *d, *pd;
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3299) dma_addr_t d_bus, page_bus;
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3300) u32 z, header_z, rest;
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 3301) int i, j, length;
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 3302) int page, offset, packet_count, header_size, payload_per_buffer;
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3303)
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3304) /*
1aa292bb1c535 drivers/firewire/fw-ohci.c (David Moore 2008-07-22 23:23:40 -0700 3305) * The OHCI controller puts the isochronous header and trailer in the
1aa292bb1c535 drivers/firewire/fw-ohci.c (David Moore 2008-07-22 23:23:40 -0700 3306) * buffer, so we need at least 8 bytes.
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3307) */
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3308) packet_count = packet->header_length / ctx->base.header_size;
1aa292bb1c535 drivers/firewire/fw-ohci.c (David Moore 2008-07-22 23:23:40 -0700 3309) header_size = max(ctx->base.header_size, (size_t)8);
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3310)
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3311) /* Get header size in number of descriptors. */
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3312) header_z = DIV_ROUND_UP(header_size, sizeof(*d));
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3313) page = payload >> PAGE_SHIFT;
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3314) offset = payload & ~PAGE_MASK;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3315) payload_per_buffer = packet->payload_length / packet_count;
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3316)
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3317) for (i = 0; i < packet_count; i++) {
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3318) /* d points to the header descriptor */
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 3319) z = DIV_ROUND_UP(payload_per_buffer + offset, PAGE_SIZE) + 1;
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3320) d = context_get_descriptors(&ctx->context,
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 3321) z + header_z, &d_bus);
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3322) if (d == NULL)
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3323) return -ENOMEM;
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3324)
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 3325) d->control = cpu_to_le16(DESCRIPTOR_STATUS |
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 3326) DESCRIPTOR_INPUT_MORE);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3327) if (packet->skip && i == 0)
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 3328) d->control |= cpu_to_le16(DESCRIPTOR_WAIT);
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3329) d->req_count = cpu_to_le16(header_size);
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3330) d->res_count = d->req_count;
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 3331) d->transfer_status = 0;
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3332) d->data_address = cpu_to_le32(d_bus + (z * sizeof(*d)));
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3333)
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 3334) rest = payload_per_buffer;
8c0c0cc2d9f4c drivers/firewire/ohci.c (Jay Fenlason 2009-12-11 14:23:58 -0500 3335) pd = d;
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 3336) for (j = 1; j < z; j++) {
8c0c0cc2d9f4c drivers/firewire/ohci.c (Jay Fenlason 2009-12-11 14:23:58 -0500 3337) pd++;
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 3338) pd->control = cpu_to_le16(DESCRIPTOR_STATUS |
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 3339) DESCRIPTOR_INPUT_MORE);
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 3340)
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 3341) if (offset + rest < PAGE_SIZE)
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 3342) length = rest;
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 3343) else
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 3344) length = PAGE_SIZE - offset;
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 3345) pd->req_count = cpu_to_le16(length);
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 3346) pd->res_count = pd->req_count;
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 3347) pd->transfer_status = 0;
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 3348)
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 3349) page_bus = page_private(buffer->pages[page]);
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 3350) pd->data_address = cpu_to_le32(page_bus + offset);
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 3351)
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 3352) dma_sync_single_range_for_device(device, page_bus,
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 3353) offset, length,
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 3354) DMA_FROM_DEVICE);
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 3355)
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 3356) offset = (offset + length) & ~PAGE_MASK;
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 3357) rest -= length;
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 3358) if (offset == 0)
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 3359) page++;
bcee893c6cba8 drivers/firewire/fw-ohci.c (David Moore 2007-12-19 15:26:38 -0500 3360) }
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3361) pd->control = cpu_to_le16(DESCRIPTOR_STATUS |
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3362) DESCRIPTOR_INPUT_LAST |
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3363) DESCRIPTOR_BRANCH_ALWAYS);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3364) if (packet->interrupt && i == packet_count - 1)
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3365) pd->control |= cpu_to_le16(DESCRIPTOR_IRQ_ALWAYS);
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3366)
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3367) context_append(&ctx->context, d, z, header_z);
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3368) }
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3369)
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3370) return 0;
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3371) }
a186b4a6b22fd drivers/firewire/fw-ohci.c (Jarod Wilson 2007-12-03 13:43:12 -0500 3372)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3373) static int queue_iso_buffer_fill(struct iso_context *ctx,
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3374) struct fw_iso_packet *packet,
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3375) struct fw_iso_buffer *buffer,
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3376) unsigned long payload)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3377) {
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3378) struct descriptor *d;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3379) dma_addr_t d_bus, page_bus;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3380) int page, offset, rest, z, i, length;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3381)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3382) page = payload >> PAGE_SHIFT;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3383) offset = payload & ~PAGE_MASK;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3384) rest = packet->payload_length;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3385)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3386) /* We need one descriptor for each page in the buffer. */
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3387) z = DIV_ROUND_UP(offset + rest, PAGE_SIZE);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3388)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3389) if (WARN_ON(offset & 3 || rest & 3 || page + z > buffer->page_count))
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3390) return -EFAULT;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3391)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3392) for (i = 0; i < z; i++) {
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3393) d = context_get_descriptors(&ctx->context, 1, &d_bus);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3394) if (d == NULL)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3395) return -ENOMEM;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3396)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3397) d->control = cpu_to_le16(DESCRIPTOR_INPUT_MORE |
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3398) DESCRIPTOR_BRANCH_ALWAYS);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3399) if (packet->skip && i == 0)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3400) d->control |= cpu_to_le16(DESCRIPTOR_WAIT);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3401) if (packet->interrupt && i == z - 1)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3402) d->control |= cpu_to_le16(DESCRIPTOR_IRQ_ALWAYS);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3403)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3404) if (offset + rest < PAGE_SIZE)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3405) length = rest;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3406) else
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3407) length = PAGE_SIZE - offset;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3408) d->req_count = cpu_to_le16(length);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3409) d->res_count = d->req_count;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3410) d->transfer_status = 0;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3411)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3412) page_bus = page_private(buffer->pages[page]);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3413) d->data_address = cpu_to_le32(page_bus + offset);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3414)
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 3415) dma_sync_single_range_for_device(ctx->context.ohci->card.device,
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 3416) page_bus, offset, length,
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 3417) DMA_FROM_DEVICE);
a572e688cf5d9 drivers/firewire/ohci.c (Clemens Ladisch 2011-10-15 23:12:23 +0200 3418)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3419) rest -= length;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3420) offset = 0;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3421) page++;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3422)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3423) context_append(&ctx->context, d, 1, 0);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3424) }
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3425)
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3426) return 0;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3427) }
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3428)
53dca51175cc2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:47:04 +0100 3429) static int ohci_queue_iso(struct fw_iso_context *base,
53dca51175cc2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:47:04 +0100 3430) struct fw_iso_packet *packet,
53dca51175cc2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:47:04 +0100 3431) struct fw_iso_buffer *buffer,
53dca51175cc2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:47:04 +0100 3432) unsigned long payload)
295e3feb92e50 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:40 -0500 3433) {
e364cf4e0aa24 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:49 -0500 3434) struct iso_context *ctx = container_of(base, struct iso_context, base);
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 3435) unsigned long flags;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3436) int ret = -ENOSYS;
e364cf4e0aa24 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:49 -0500 3437)
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 3438) spin_lock_irqsave(&ctx->context.ohci->lock, flags);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3439) switch (base->type) {
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3440) case FW_ISO_CONTEXT_TRANSMIT:
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3441) ret = queue_iso_transmit(ctx, packet, buffer, payload);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3442) break;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3443) case FW_ISO_CONTEXT_RECEIVE:
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3444) ret = queue_iso_packet_per_buffer(ctx, packet, buffer, payload);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3445) break;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3446) case FW_ISO_CONTEXT_RECEIVE_MULTICHANNEL:
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3447) ret = queue_iso_buffer_fill(ctx, packet, buffer, payload);
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3448) break;
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3449) }
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 3450) spin_unlock_irqrestore(&ctx->context.ohci->lock, flags);
fe5ca63430d64 drivers/firewire/fw-ohci.c (David Moore 2008-01-06 17:21:41 -0500 3451)
2dbd7d7e2327b drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:45:45 +0100 3452) return ret;
295e3feb92e50 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:40 -0500 3453) }
295e3feb92e50 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:40 -0500 3454)
13882a82ee164 drivers/firewire/ohci.c (Clemens Ladisch 2011-05-02 09:33:56 +0200 3455) static void ohci_flush_queue_iso(struct fw_iso_context *base)
13882a82ee164 drivers/firewire/ohci.c (Clemens Ladisch 2011-05-02 09:33:56 +0200 3456) {
13882a82ee164 drivers/firewire/ohci.c (Clemens Ladisch 2011-05-02 09:33:56 +0200 3457) struct context *ctx =
13882a82ee164 drivers/firewire/ohci.c (Clemens Ladisch 2011-05-02 09:33:56 +0200 3458) &container_of(base, struct iso_context, base)->context;
13882a82ee164 drivers/firewire/ohci.c (Clemens Ladisch 2011-05-02 09:33:56 +0200 3459)
13882a82ee164 drivers/firewire/ohci.c (Clemens Ladisch 2011-05-02 09:33:56 +0200 3460) reg_write(ctx->ohci, CONTROL_SET(ctx->regs), CONTEXT_WAKE);
13882a82ee164 drivers/firewire/ohci.c (Clemens Ladisch 2011-05-02 09:33:56 +0200 3461) }
13882a82ee164 drivers/firewire/ohci.c (Clemens Ladisch 2011-05-02 09:33:56 +0200 3462)
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3463) static int ohci_flush_iso_completions(struct fw_iso_context *base)
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3464) {
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3465) struct iso_context *ctx = container_of(base, struct iso_context, base);
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3466) int ret = 0;
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3467)
f339fc16fba01 drivers/firewire/ohci.c (Sebastian Andrzej Siewior 2021-03-09 09:42:16 +0100 3468) tasklet_disable_in_atomic(&ctx->context.tasklet);
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3469)
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3470) if (!test_and_set_bit_lock(0, &ctx->flushing_completions)) {
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3471) context_tasklet((unsigned long)&ctx->context);
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3472)
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3473) switch (base->type) {
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3474) case FW_ISO_CONTEXT_TRANSMIT:
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3475) case FW_ISO_CONTEXT_RECEIVE:
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3476) if (ctx->header_length != 0)
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3477) flush_iso_completions(ctx);
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3478) break;
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3479) case FW_ISO_CONTEXT_RECEIVE_MULTICHANNEL:
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3480) if (ctx->mc_completed != 0)
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3481) flush_ir_buffer_fill(ctx);
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3482) break;
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3483) default:
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3484) ret = -ENOSYS;
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3485) }
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3486)
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3487) clear_bit_unlock(0, &ctx->flushing_completions);
4e857c58efeb9 drivers/firewire/ohci.c (Peter Zijlstra 2014-03-17 18:06:10 +0100 3488) smp_mb__after_atomic();
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3489) }
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3490)
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3491) tasklet_enable(&ctx->context.tasklet);
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3492)
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3493) return ret;
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3494) }
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3495)
21ebcd1224d05 drivers/firewire/fw-ohci.c (Stefan Richter 2007-01-14 15:29:07 +0100 3496) static const struct fw_card_driver ohci_driver = {
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3497) .enable = ohci_enable,
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 3498) .read_phy_reg = ohci_read_phy_reg,
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3499) .update_phy_reg = ohci_update_phy_reg,
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3500) .set_config_rom = ohci_set_config_rom,
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3501) .send_request = ohci_send_request,
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3502) .send_response = ohci_send_response,
730c32f58ba81 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-06 14:49:32 -0500 3503) .cancel_packet = ohci_cancel_packet,
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3504) .enable_phys_dma = ohci_enable_phys_dma,
0fcff4e39323f drivers/firewire/ohci.c (Stefan Richter 2010-06-12 20:35:52 +0200 3505) .read_csr = ohci_read_csr,
0fcff4e39323f drivers/firewire/ohci.c (Stefan Richter 2010-06-12 20:35:52 +0200 3506) .write_csr = ohci_write_csr,
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3507)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3508) .allocate_iso_context = ohci_allocate_iso_context,
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3509) .free_iso_context = ohci_free_iso_context,
872e330e38806 drivers/firewire/ohci.c (Stefan Richter 2010-07-29 18:19:22 +0200 3510) .set_iso_channels = ohci_set_iso_channels,
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3511) .queue_iso = ohci_queue_iso,
13882a82ee164 drivers/firewire/ohci.c (Clemens Ladisch 2011-05-02 09:33:56 +0200 3512) .flush_queue_iso = ohci_flush_queue_iso,
d1bbd20972936 drivers/firewire/ohci.c (Clemens Ladisch 2012-03-18 19:06:39 +0100 3513) .flush_iso_completions = ohci_flush_iso_completions,
69cdb7268ca2e drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:41 -0500 3514) .start_iso = ohci_start_iso,
b82956685aab4 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-02-16 17:34:42 -0500 3515) .stop_iso = ohci_stop_iso,
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3516) };
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3517)
ea8d006b91ac5 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 02:42:56 +0100 3518) #ifdef CONFIG_PPC_PMAC
5da3dac8d99c9 drivers/firewire/ohci.c (Stefan Richter 2010-04-02 14:05:02 +0200 3519) static void pmac_ohci_on(struct pci_dev *dev)
2ed0f181f0d18 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 12:35:29 +0100 3520) {
ea8d006b91ac5 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 02:42:56 +0100 3521) if (machine_is(powermac)) {
ea8d006b91ac5 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 02:42:56 +0100 3522) struct device_node *ofn = pci_device_to_OF_node(dev);
ea8d006b91ac5 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 02:42:56 +0100 3523)
ea8d006b91ac5 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 02:42:56 +0100 3524) if (ofn) {
ea8d006b91ac5 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 02:42:56 +0100 3525) pmac_call_feature(PMAC_FTR_1394_CABLE_POWER, ofn, 0, 1);
ea8d006b91ac5 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 02:42:56 +0100 3526) pmac_call_feature(PMAC_FTR_1394_ENABLE, ofn, 0, 1);
ea8d006b91ac5 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 02:42:56 +0100 3527) }
ea8d006b91ac5 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 02:42:56 +0100 3528) }
2ed0f181f0d18 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 12:35:29 +0100 3529) }
2ed0f181f0d18 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 12:35:29 +0100 3530)
5da3dac8d99c9 drivers/firewire/ohci.c (Stefan Richter 2010-04-02 14:05:02 +0200 3531) static void pmac_ohci_off(struct pci_dev *dev)
2ed0f181f0d18 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 12:35:29 +0100 3532) {
2ed0f181f0d18 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 12:35:29 +0100 3533) if (machine_is(powermac)) {
2ed0f181f0d18 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 12:35:29 +0100 3534) struct device_node *ofn = pci_device_to_OF_node(dev);
2ed0f181f0d18 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 12:35:29 +0100 3535)
2ed0f181f0d18 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 12:35:29 +0100 3536) if (ofn) {
2ed0f181f0d18 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 12:35:29 +0100 3537) pmac_call_feature(PMAC_FTR_1394_ENABLE, ofn, 0, 0);
2ed0f181f0d18 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 12:35:29 +0100 3538) pmac_call_feature(PMAC_FTR_1394_CABLE_POWER, ofn, 0, 0);
2ed0f181f0d18 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 12:35:29 +0100 3539) }
2ed0f181f0d18 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 12:35:29 +0100 3540) }
2ed0f181f0d18 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 12:35:29 +0100 3541) }
2ed0f181f0d18 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 12:35:29 +0100 3542) #else
5da3dac8d99c9 drivers/firewire/ohci.c (Stefan Richter 2010-04-02 14:05:02 +0200 3543) static inline void pmac_ohci_on(struct pci_dev *dev) {}
5da3dac8d99c9 drivers/firewire/ohci.c (Stefan Richter 2010-04-02 14:05:02 +0200 3544) static inline void pmac_ohci_off(struct pci_dev *dev) {}
ea8d006b91ac5 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 02:42:56 +0100 3545) #endif /* CONFIG_PPC_PMAC */
ea8d006b91ac5 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 02:42:56 +0100 3546)
03f94c0f6215f drivers/firewire/ohci.c (Bill Pemberton 2012-11-19 13:22:57 -0500 3547) static int pci_probe(struct pci_dev *dev,
53dca51175cc2 drivers/firewire/fw-ohci.c (Stefan Richter 2008-12-14 21:47:04 +0100 3548) const struct pci_device_id *ent)
2ed0f181f0d18 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 12:35:29 +0100 3549) {
2ed0f181f0d18 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 12:35:29 +0100 3550) struct fw_ohci *ohci;
aa0170fff3c26 drivers/firewire/ohci.c (Stefan Richter 2010-10-17 14:09:12 +0200 3551) u32 bus_options, max_receive, link_speed, version;
2ed0f181f0d18 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 12:35:29 +0100 3552) u64 guid;
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3553) int i, err;
2ed0f181f0d18 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 12:35:29 +0100 3554) size_t size;
2ed0f181f0d18 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 12:35:29 +0100 3555)
7f7e37115a8b6 drivers/firewire/ohci.c (Stefan Richter 2011-07-10 00:23:03 +0200 3556) if (dev->vendor == PCI_VENDOR_ID_PINNACLE_SYSTEMS) {
7f7e37115a8b6 drivers/firewire/ohci.c (Stefan Richter 2011-07-10 00:23:03 +0200 3557) dev_err(&dev->dev, "Pinnacle MovieBoard is not yet supported\n");
7f7e37115a8b6 drivers/firewire/ohci.c (Stefan Richter 2011-07-10 00:23:03 +0200 3558) return -ENOSYS;
7f7e37115a8b6 drivers/firewire/ohci.c (Stefan Richter 2011-07-10 00:23:03 +0200 3559) }
7f7e37115a8b6 drivers/firewire/ohci.c (Stefan Richter 2011-07-10 00:23:03 +0200 3560)
2d826cc5c791b drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-09 19:23:14 -0400 3561) ohci = kzalloc(sizeof(*ohci), GFP_KERNEL);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3562) if (ohci == NULL) {
7007a0765e33b drivers/firewire/fw-ohci.c (Stefan Richter 2008-10-26 09:50:31 +0100 3563) err = -ENOMEM;
7007a0765e33b drivers/firewire/fw-ohci.c (Stefan Richter 2008-10-26 09:50:31 +0100 3564) goto fail;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3565) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3566)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3567) fw_card_initialize(&ohci->card, &ohci_driver, &dev->dev);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3568)
5da3dac8d99c9 drivers/firewire/ohci.c (Stefan Richter 2010-04-02 14:05:02 +0200 3569) pmac_ohci_on(dev);
130d5496e2c91 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-24 20:55:28 +0100 3570)
d79406dd140a3 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-09 19:23:15 -0400 3571) err = pci_enable_device(dev);
d79406dd140a3 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-09 19:23:15 -0400 3572) if (err) {
64d2172019dcf drivers/firewire/ohci.c (Stefan Richter 2011-12-20 21:32:46 +0100 3573) dev_err(&dev->dev, "failed to enable OHCI hardware\n");
bd7dee6311156 drivers/firewire/fw-ohci.c (Stefan Richter 2008-02-24 18:59:55 +0100 3574) goto fail_free;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3575) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3576)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3577) pci_set_master(dev);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3578) pci_write_config_dword(dev, OHCI1394_PCI_HCI_Control, 0);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3579) pci_set_drvdata(dev, ohci);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3580)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3581) spin_lock_init(&ohci->lock);
02d37bed188c5 drivers/firewire/ohci.c (Stefan Richter 2010-07-08 16:09:06 +0200 3582) mutex_init(&ohci->phy_reg_mutex);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3583)
2d7a36e23300d drivers/firewire/ohci.c (Stephan Gatzka 2011-07-25 22:16:24 +0200 3584) INIT_WORK(&ohci->bus_reset_work, bus_reset_work);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3585)
7baab9acfb259 drivers/firewire/ohci.c (Clemens Ladisch 2012-06-04 21:28:07 +0200 3586) if (!(pci_resource_flags(dev, 0) & IORESOURCE_MEM) ||
7baab9acfb259 drivers/firewire/ohci.c (Clemens Ladisch 2012-06-04 21:28:07 +0200 3587) pci_resource_len(dev, 0) < OHCI1394_REGISTER_SIZE) {
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 3588) ohci_err(ohci, "invalid MMIO resource\n");
7baab9acfb259 drivers/firewire/ohci.c (Clemens Ladisch 2012-06-04 21:28:07 +0200 3589) err = -ENXIO;
7baab9acfb259 drivers/firewire/ohci.c (Clemens Ladisch 2012-06-04 21:28:07 +0200 3590) goto fail_disable;
7baab9acfb259 drivers/firewire/ohci.c (Clemens Ladisch 2012-06-04 21:28:07 +0200 3591) }
7baab9acfb259 drivers/firewire/ohci.c (Clemens Ladisch 2012-06-04 21:28:07 +0200 3592)
d79406dd140a3 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-09 19:23:15 -0400 3593) err = pci_request_region(dev, 0, ohci_driver_name);
d79406dd140a3 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-09 19:23:15 -0400 3594) if (err) {
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 3595) ohci_err(ohci, "MMIO resource unavailable\n");
d79406dd140a3 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-09 19:23:15 -0400 3596) goto fail_disable;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3597) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3598)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3599) ohci->registers = pci_iomap(dev, 0, OHCI1394_REGISTER_SIZE);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3600) if (ohci->registers == NULL) {
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 3601) ohci_err(ohci, "failed to remap registers\n");
d79406dd140a3 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-09 19:23:15 -0400 3602) err = -ENXIO;
d79406dd140a3 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-09 19:23:15 -0400 3603) goto fail_iomem;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3604) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3605)
4a635593f4474 drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:58:01 +0100 3606) for (i = 0; i < ARRAY_SIZE(ohci_quirks); i++)
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 3607) if ((ohci_quirks[i].vendor == dev->vendor) &&
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 3608) (ohci_quirks[i].device == (unsigned short)PCI_ANY_ID ||
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 3609) ohci_quirks[i].device == dev->device) &&
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 3610) (ohci_quirks[i].revision == (unsigned short)PCI_ANY_ID ||
9993e0fe0f5f2 drivers/firewire/ohci.c (Stefan Richter 2010-12-07 20:32:40 +0100 3611) ohci_quirks[i].revision >= dev->revision)) {
4a635593f4474 drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:58:01 +0100 3612) ohci->quirks = ohci_quirks[i].flags;
4a635593f4474 drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:58:01 +0100 3613) break;
4a635593f4474 drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:58:01 +0100 3614) }
3e9cc2f3b7dda drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:58:29 +0100 3615) if (param_quirks)
3e9cc2f3b7dda drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:58:29 +0100 3616) ohci->quirks = param_quirks;
b677532b97127 drivers/firewire/ohci.c (Clemens Ladisch 2010-01-20 09:58:02 +0100 3617)
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 3618) /*
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 3619) * Because dma_alloc_coherent() allocates at least one page,
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 3620) * we save space by using a common buffer for the AR request/
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 3621) * response descriptors and the self IDs buffer.
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 3622) */
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 3623) BUILD_BUG_ON(AR_BUFFERS * sizeof(struct descriptor) > PAGE_SIZE/4);
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 3624) BUILD_BUG_ON(SELF_ID_BUF_SIZE > PAGE_SIZE/2);
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 3625) ohci->misc_buffer = dma_alloc_coherent(ohci->card.device,
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 3626) PAGE_SIZE,
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 3627) &ohci->misc_buffer_bus,
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 3628) GFP_KERNEL);
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 3629) if (!ohci->misc_buffer) {
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 3630) err = -ENOMEM;
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 3631) goto fail_iounmap;
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 3632) }
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 3633)
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 3634) err = ar_context_init(&ohci->ar_request_ctx, ohci, 0,
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 3635) OHCI1394_AsReqRcvContextControlSet);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 3636) if (err < 0)
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 3637) goto fail_misc_buf;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3638)
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 3639) err = ar_context_init(&ohci->ar_response_ctx, ohci, PAGE_SIZE/4,
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 3640) OHCI1394_AsRspRcvContextControlSet);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 3641) if (err < 0)
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 3642) goto fail_arreq_ctx;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3643)
c088ab30ebf18 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:01 +0100 3644) err = context_init(&ohci->at_request_ctx, ohci,
c088ab30ebf18 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:01 +0100 3645) OHCI1394_AsReqTrContextControlSet, handle_at_packet);
c088ab30ebf18 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:01 +0100 3646) if (err < 0)
c088ab30ebf18 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:01 +0100 3647) goto fail_arrsp_ctx;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3648)
c088ab30ebf18 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:01 +0100 3649) err = context_init(&ohci->at_response_ctx, ohci,
c088ab30ebf18 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:01 +0100 3650) OHCI1394_AsRspTrContextControlSet, handle_at_packet);
c088ab30ebf18 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:01 +0100 3651) if (err < 0)
c088ab30ebf18 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:01 +0100 3652) goto fail_atreq_ctx;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3653)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3654) reg_write(ohci, OHCI1394_IsoRecvIntMaskSet, ~0);
4802f16d512d6 drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:58:52 +0100 3655) ohci->ir_context_channels = ~0ULL;
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 3656) ohci->ir_context_support = reg_read(ohci, OHCI1394_IsoRecvIntMaskSet);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3657) reg_write(ohci, OHCI1394_IsoRecvIntMaskClear, ~0);
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 3658) ohci->ir_context_mask = ohci->ir_context_support;
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3659) ohci->n_ir = hweight32(ohci->ir_context_mask);
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3660) size = sizeof(struct iso_context) * ohci->n_ir;
4802f16d512d6 drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:58:52 +0100 3661) ohci->ir_context_list = kzalloc(size, GFP_KERNEL);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3662)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3663) reg_write(ohci, OHCI1394_IsoXmitIntMaskSet, ~0);
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 3664) ohci->it_context_support = reg_read(ohci, OHCI1394_IsoXmitIntMaskSet);
100ceb66d5c40 drivers/firewire/ohci.c (Stefan Richter 2015-11-03 01:46:21 +0100 3665) /* JMicron JMB38x often shows 0 at first read, just ignore it */
100ceb66d5c40 drivers/firewire/ohci.c (Stefan Richter 2015-11-03 01:46:21 +0100 3666) if (!ohci->it_context_support) {
100ceb66d5c40 drivers/firewire/ohci.c (Stefan Richter 2015-11-03 01:46:21 +0100 3667) ohci_notice(ohci, "overriding IsoXmitIntMask\n");
100ceb66d5c40 drivers/firewire/ohci.c (Stefan Richter 2015-11-03 01:46:21 +0100 3668) ohci->it_context_support = 0xf;
100ceb66d5c40 drivers/firewire/ohci.c (Stefan Richter 2015-11-03 01:46:21 +0100 3669) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3670) reg_write(ohci, OHCI1394_IsoXmitIntMaskClear, ~0);
f117a3e300438 drivers/firewire/ohci.c (Clemens Ladisch 2011-01-10 17:21:35 +0100 3671) ohci->it_context_mask = ohci->it_context_support;
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3672) ohci->n_it = hweight32(ohci->it_context_mask);
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3673) size = sizeof(struct iso_context) * ohci->n_it;
4802f16d512d6 drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:58:52 +0100 3674) ohci->it_context_list = kzalloc(size, GFP_KERNEL);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3675)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3676) if (ohci->it_context_list == NULL || ohci->ir_context_list == NULL) {
d79406dd140a3 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-09 19:23:15 -0400 3677) err = -ENOMEM;
7007a0765e33b drivers/firewire/fw-ohci.c (Stefan Richter 2008-10-26 09:50:31 +0100 3678) goto fail_contexts;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3679) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3680)
af53122a2a623 drivers/firewire/ohci.c (Stefan Richter 2013-08-05 15:10:38 +0200 3681) ohci->self_id = ohci->misc_buffer + PAGE_SIZE/2;
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 3682) ohci->self_id_bus = ohci->misc_buffer_bus + PAGE_SIZE/2;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3683)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3684) bus_options = reg_read(ohci, OHCI1394_BusOptions);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3685) max_receive = (bus_options >> 12) & 0xf;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3686) link_speed = bus_options & 0x7;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3687) guid = ((u64) reg_read(ohci, OHCI1394_GUIDHi) << 32) |
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3688) reg_read(ohci, OHCI1394_GUIDLo);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3689)
247fd50b5953d drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:59:58 -0400 3690) if (!(ohci->quirks & QUIRK_NO_MSI))
247fd50b5953d drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:59:58 -0400 3691) pci_enable_msi(dev);
247fd50b5953d drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:59:58 -0400 3692) if (request_irq(dev->irq, irq_handler,
247fd50b5953d drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:59:58 -0400 3693) pci_dev_msi_enabled(dev) ? 0 : IRQF_SHARED,
247fd50b5953d drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:59:58 -0400 3694) ohci_driver_name, ohci)) {
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 3695) ohci_err(ohci, "failed to allocate interrupt %d\n", dev->irq);
247fd50b5953d drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:59:58 -0400 3696) err = -EIO;
247fd50b5953d drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:59:58 -0400 3697) goto fail_msi;
247fd50b5953d drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:59:58 -0400 3698) }
247fd50b5953d drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:59:58 -0400 3699)
d79406dd140a3 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-09 19:23:15 -0400 3700) err = fw_card_add(&ohci->card, max_receive, link_speed, guid);
e1eff7a393d4a drivers/firewire/fw-ohci.c (Stefan Richter 2009-02-03 17:55:19 +0100 3701) if (err)
247fd50b5953d drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:59:58 -0400 3702) goto fail_irq;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3703)
6fdb2ee243404 drivers/firewire/ohci.c (Stefan Richter 2010-02-21 17:59:14 +0100 3704) version = reg_read(ohci, OHCI1394_Version) & 0x00ff00ff;
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 3705) ohci_notice(ohci,
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 3706) "added OHCI v%x.%x device as card %d, "
fcd46b34425da drivers/firewire/ohci.c (Stefan Richter 2014-01-18 17:32:20 +0100 3707) "%d IR + %d IT contexts, quirks 0x%x%s\n",
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 3708) version >> 16, version & 0xff, ohci->card.index,
fcd46b34425da drivers/firewire/ohci.c (Stefan Richter 2014-01-18 17:32:20 +0100 3709) ohci->n_ir, ohci->n_it, ohci->quirks,
fcd46b34425da drivers/firewire/ohci.c (Stefan Richter 2014-01-18 17:32:20 +0100 3710) reg_read(ohci, OHCI1394_PhyUpperBound) ?
2fe2023adf695 drivers/firewire/ohci.c (Stefan Richter 2014-05-29 15:23:26 +0200 3711) ", physUB" : "");
e1eff7a393d4a drivers/firewire/fw-ohci.c (Stefan Richter 2009-02-03 17:55:19 +0100 3712)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3713) return 0;
d79406dd140a3 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-09 19:23:15 -0400 3714)
247fd50b5953d drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:59:58 -0400 3715) fail_irq:
247fd50b5953d drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:59:58 -0400 3716) free_irq(dev->irq, ohci);
247fd50b5953d drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:59:58 -0400 3717) fail_msi:
247fd50b5953d drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:59:58 -0400 3718) pci_disable_msi(dev);
7007a0765e33b drivers/firewire/fw-ohci.c (Stefan Richter 2008-10-26 09:50:31 +0100 3719) fail_contexts:
d79406dd140a3 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-09 19:23:15 -0400 3720) kfree(ohci->ir_context_list);
7007a0765e33b drivers/firewire/fw-ohci.c (Stefan Richter 2008-10-26 09:50:31 +0100 3721) kfree(ohci->it_context_list);
7007a0765e33b drivers/firewire/fw-ohci.c (Stefan Richter 2008-10-26 09:50:31 +0100 3722) context_release(&ohci->at_response_ctx);
c088ab30ebf18 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:01 +0100 3723) fail_atreq_ctx:
7007a0765e33b drivers/firewire/fw-ohci.c (Stefan Richter 2008-10-26 09:50:31 +0100 3724) context_release(&ohci->at_request_ctx);
c088ab30ebf18 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:24:01 +0100 3725) fail_arrsp_ctx:
7007a0765e33b drivers/firewire/fw-ohci.c (Stefan Richter 2008-10-26 09:50:31 +0100 3726) ar_context_release(&ohci->ar_response_ctx);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 3727) fail_arreq_ctx:
7007a0765e33b drivers/firewire/fw-ohci.c (Stefan Richter 2008-10-26 09:50:31 +0100 3728) ar_context_release(&ohci->ar_request_ctx);
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 3729) fail_misc_buf:
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 3730) dma_free_coherent(ohci->card.device, PAGE_SIZE,
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 3731) ohci->misc_buffer, ohci->misc_buffer_bus);
7a39d8b821654 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-26 08:57:31 +0100 3732) fail_iounmap:
d79406dd140a3 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-09 19:23:15 -0400 3733) pci_iounmap(dev, ohci->registers);
d79406dd140a3 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-09 19:23:15 -0400 3734) fail_iomem:
d79406dd140a3 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-09 19:23:15 -0400 3735) pci_release_region(dev, 0);
d79406dd140a3 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-09 19:23:15 -0400 3736) fail_disable:
d79406dd140a3 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-09 19:23:15 -0400 3737) pci_disable_device(dev);
bd7dee6311156 drivers/firewire/fw-ohci.c (Stefan Richter 2008-02-24 18:59:55 +0100 3738) fail_free:
d838d2c09af08 drivers/firewire/ohci.c (Oleg Drokin 2011-03-11 04:17:27 +0300 3739) kfree(ohci);
5da3dac8d99c9 drivers/firewire/ohci.c (Stefan Richter 2010-04-02 14:05:02 +0200 3740) pmac_ohci_off(dev);
7007a0765e33b drivers/firewire/fw-ohci.c (Stefan Richter 2008-10-26 09:50:31 +0100 3741) fail:
d79406dd140a3 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-09 19:23:15 -0400 3742) return err;
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3743) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3744)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3745) static void pci_remove(struct pci_dev *dev)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3746) {
8db491490b88c drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:59:59 -0400 3747) struct fw_ohci *ohci = pci_get_drvdata(dev);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3748)
8db491490b88c drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:59:59 -0400 3749) /*
8db491490b88c drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:59:59 -0400 3750) * If the removal is happening from the suspend state, LPS won't be
8db491490b88c drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:59:59 -0400 3751) * enabled and host registers (eg., IntMaskClear) won't be accessible.
8db491490b88c drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:59:59 -0400 3752) */
8db491490b88c drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:59:59 -0400 3753) if (reg_read(ohci, OHCI1394_HCControlSet) & OHCI1394_HCControl_LPS) {
8db491490b88c drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:59:59 -0400 3754) reg_write(ohci, OHCI1394_IntMaskClear, ~0);
8db491490b88c drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:59:59 -0400 3755) flush_writes(ohci);
8db491490b88c drivers/firewire/ohci.c (Peter Hurley 2013-03-27 06:59:59 -0400 3756) }
2d7a36e23300d drivers/firewire/ohci.c (Stephan Gatzka 2011-07-25 22:16:24 +0200 3757) cancel_work_sync(&ohci->bus_reset_work);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3758) fw_core_remove_card(&ohci->card);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3759)
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 3760) /*
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 3761) * FIXME: Fail all pending packets here, now that the upper
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 3762) * layers can't queue any more.
c781c06d119d0 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-07 20:33:32 -0400 3763) */
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3764)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3765) software_reset(ohci);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3766) free_irq(dev->irq, ohci);
a55709ba9d270 drivers/firewire/fw-ohci.c (Jay Fenlason 2008-10-22 15:59:42 -0400 3767)
a55709ba9d270 drivers/firewire/fw-ohci.c (Jay Fenlason 2008-10-22 15:59:42 -0400 3768) if (ohci->next_config_rom && ohci->next_config_rom != ohci->config_rom)
a55709ba9d270 drivers/firewire/fw-ohci.c (Jay Fenlason 2008-10-22 15:59:42 -0400 3769) dma_free_coherent(ohci->card.device, CONFIG_ROM_SIZE,
a55709ba9d270 drivers/firewire/fw-ohci.c (Jay Fenlason 2008-10-22 15:59:42 -0400 3770) ohci->next_config_rom, ohci->next_config_rom_bus);
a55709ba9d270 drivers/firewire/fw-ohci.c (Jay Fenlason 2008-10-22 15:59:42 -0400 3771) if (ohci->config_rom)
a55709ba9d270 drivers/firewire/fw-ohci.c (Jay Fenlason 2008-10-22 15:59:42 -0400 3772) dma_free_coherent(ohci->card.device, CONFIG_ROM_SIZE,
a55709ba9d270 drivers/firewire/fw-ohci.c (Jay Fenlason 2008-10-22 15:59:42 -0400 3773) ohci->config_rom, ohci->config_rom_bus);
a55709ba9d270 drivers/firewire/fw-ohci.c (Jay Fenlason 2008-10-22 15:59:42 -0400 3774) ar_context_release(&ohci->ar_request_ctx);
a55709ba9d270 drivers/firewire/fw-ohci.c (Jay Fenlason 2008-10-22 15:59:42 -0400 3775) ar_context_release(&ohci->ar_response_ctx);
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 3776) dma_free_coherent(ohci->card.device, PAGE_SIZE,
ec766a7970126 drivers/firewire/ohci.c (Clemens Ladisch 2010-11-30 08:25:17 +0100 3777) ohci->misc_buffer, ohci->misc_buffer_bus);
a55709ba9d270 drivers/firewire/fw-ohci.c (Jay Fenlason 2008-10-22 15:59:42 -0400 3778) context_release(&ohci->at_request_ctx);
a55709ba9d270 drivers/firewire/fw-ohci.c (Jay Fenlason 2008-10-22 15:59:42 -0400 3779) context_release(&ohci->at_response_ctx);
d79406dd140a3 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-09 19:23:15 -0400 3780) kfree(ohci->it_context_list);
d79406dd140a3 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-09 19:23:15 -0400 3781) kfree(ohci->ir_context_list);
262444eecce40 drivers/firewire/ohci.c (Clemens Ladisch 2010-06-05 12:31:25 +0200 3782) pci_disable_msi(dev);
d79406dd140a3 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-09 19:23:15 -0400 3783) pci_iounmap(dev, ohci->registers);
d79406dd140a3 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-09 19:23:15 -0400 3784) pci_release_region(dev, 0);
d79406dd140a3 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-09 19:23:15 -0400 3785) pci_disable_device(dev);
d838d2c09af08 drivers/firewire/ohci.c (Oleg Drokin 2011-03-11 04:17:27 +0300 3786) kfree(ohci);
5da3dac8d99c9 drivers/firewire/ohci.c (Stefan Richter 2010-04-02 14:05:02 +0200 3787) pmac_ohci_off(dev);
ea8d006b91ac5 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 02:42:56 +0100 3788)
64d2172019dcf drivers/firewire/ohci.c (Stefan Richter 2011-12-20 21:32:46 +0100 3789) dev_notice(&dev->dev, "removed fw-ohci device\n");
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3790) }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3791)
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 3792) #ifdef CONFIG_PM
2ed0f181f0d18 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 12:35:29 +0100 3793) static int pci_suspend(struct pci_dev *dev, pm_message_t state)
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 3794) {
2ed0f181f0d18 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 12:35:29 +0100 3795) struct fw_ohci *ohci = pci_get_drvdata(dev);
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 3796) int err;
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 3797)
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 3798) software_reset(ohci);
2ed0f181f0d18 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 12:35:29 +0100 3799) err = pci_save_state(dev);
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 3800) if (err) {
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 3801) ohci_err(ohci, "pci_save_state failed\n");
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 3802) return err;
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 3803) }
2ed0f181f0d18 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 12:35:29 +0100 3804) err = pci_set_power_state(dev, pci_choose_state(dev, state));
5511142870046 drivers/firewire/fw-ohci.c (Stefan Richter 2007-09-06 09:50:30 +0200 3805) if (err)
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 3806) ohci_err(ohci, "pci_set_power_state failed with %d\n", err);
5da3dac8d99c9 drivers/firewire/ohci.c (Stefan Richter 2010-04-02 14:05:02 +0200 3807) pmac_ohci_off(dev);
ea8d006b91ac5 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 02:42:56 +0100 3808)
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 3809) return 0;
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 3810) }
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 3811)
2ed0f181f0d18 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 12:35:29 +0100 3812) static int pci_resume(struct pci_dev *dev)
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 3813) {
2ed0f181f0d18 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 12:35:29 +0100 3814) struct fw_ohci *ohci = pci_get_drvdata(dev);
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 3815) int err;
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 3816)
5da3dac8d99c9 drivers/firewire/ohci.c (Stefan Richter 2010-04-02 14:05:02 +0200 3817) pmac_ohci_on(dev);
2ed0f181f0d18 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 12:35:29 +0100 3818) pci_set_power_state(dev, PCI_D0);
2ed0f181f0d18 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 12:35:29 +0100 3819) pci_restore_state(dev);
2ed0f181f0d18 drivers/firewire/fw-ohci.c (Stefan Richter 2008-03-01 12:35:29 +0100 3820) err = pci_enable_device(dev);
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 3821) if (err) {
de97cb64a959f drivers/firewire/ohci.c (Peter Hurley 2013-03-26 11:54:06 -0400 3822) ohci_err(ohci, "pci_enable_device failed\n");
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 3823) return err;
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 3824) }
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 3825)
8662b6b029636 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:49 +0200 3826) /* Some systems don't setup GUID register on resume from ram */
8662b6b029636 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:49 +0200 3827) if (!reg_read(ohci, OHCI1394_GUIDLo) &&
8662b6b029636 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:49 +0200 3828) !reg_read(ohci, OHCI1394_GUIDHi)) {
8662b6b029636 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:49 +0200 3829) reg_write(ohci, OHCI1394_GUIDLo, (u32)ohci->card.guid);
8662b6b029636 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:49 +0200 3830) reg_write(ohci, OHCI1394_GUIDHi, (u32)(ohci->card.guid >> 32));
8662b6b029636 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:49 +0200 3831) }
8662b6b029636 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:49 +0200 3832)
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3833) err = ohci_enable(&ohci->card, NULL, 0);
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3834) if (err)
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3835) return err;
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3836)
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3837) ohci_resume_iso_dma(ohci);
693a50b511818 drivers/firewire/ohci.c (Stefan Richter 2011-01-01 15:17:05 +0100 3838)
dd23736e09203 drivers/firewire/ohci.c (Maxim Levitsky 2010-11-29 04:09:50 +0200 3839) return 0;
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 3840) }
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 3841) #endif
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 3842)
a67483d2be12d drivers/firewire/ohci.c (Németh Márton 2010-01-10 13:14:26 +0100 3843) static const struct pci_device_id pci_table[] = {
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3844) { PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_FIREWIRE_OHCI, ~0) },
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3845) { }
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3846) };
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3847)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3848) MODULE_DEVICE_TABLE(pci, pci_table);
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3849)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3850) static struct pci_driver fw_ohci_pci_driver = {
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3851) .name = ohci_driver_name,
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3852) .id_table = pci_table,
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3853) .probe = pci_probe,
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3854) .remove = pci_remove,
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 3855) #ifdef CONFIG_PM
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 3856) .resume = pci_resume,
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 3857) .suspend = pci_suspend,
2aef469a35a27 drivers/firewire/fw-ohci.c (Kristian Høgsberg 2007-05-30 19:06:35 -0400 3858) #endif
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3859) };
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3860)
7a723c6ed9e92 drivers/firewire/ohci.c (Stephan Gatzka 2013-08-26 20:50:04 +0200 3861) static int __init fw_ohci_init(void)
7a723c6ed9e92 drivers/firewire/ohci.c (Stephan Gatzka 2013-08-26 20:50:04 +0200 3862) {
db9ae8fec7b19 drivers/firewire/ohci.c (Stephan Gatzka 2013-08-26 20:50:05 +0200 3863) selfid_workqueue = alloc_workqueue(KBUILD_MODNAME, WQ_MEM_RECLAIM, 0);
db9ae8fec7b19 drivers/firewire/ohci.c (Stephan Gatzka 2013-08-26 20:50:05 +0200 3864) if (!selfid_workqueue)
db9ae8fec7b19 drivers/firewire/ohci.c (Stephan Gatzka 2013-08-26 20:50:05 +0200 3865) return -ENOMEM;
db9ae8fec7b19 drivers/firewire/ohci.c (Stephan Gatzka 2013-08-26 20:50:05 +0200 3866)
7a723c6ed9e92 drivers/firewire/ohci.c (Stephan Gatzka 2013-08-26 20:50:04 +0200 3867) return pci_register_driver(&fw_ohci_pci_driver);
7a723c6ed9e92 drivers/firewire/ohci.c (Stephan Gatzka 2013-08-26 20:50:04 +0200 3868) }
7a723c6ed9e92 drivers/firewire/ohci.c (Stephan Gatzka 2013-08-26 20:50:04 +0200 3869)
7a723c6ed9e92 drivers/firewire/ohci.c (Stephan Gatzka 2013-08-26 20:50:04 +0200 3870) static void __exit fw_ohci_cleanup(void)
7a723c6ed9e92 drivers/firewire/ohci.c (Stephan Gatzka 2013-08-26 20:50:04 +0200 3871) {
7a723c6ed9e92 drivers/firewire/ohci.c (Stephan Gatzka 2013-08-26 20:50:04 +0200 3872) pci_unregister_driver(&fw_ohci_pci_driver);
db9ae8fec7b19 drivers/firewire/ohci.c (Stephan Gatzka 2013-08-26 20:50:05 +0200 3873) destroy_workqueue(selfid_workqueue);
7a723c6ed9e92 drivers/firewire/ohci.c (Stephan Gatzka 2013-08-26 20:50:04 +0200 3874) }
7a723c6ed9e92 drivers/firewire/ohci.c (Stephan Gatzka 2013-08-26 20:50:04 +0200 3875)
7a723c6ed9e92 drivers/firewire/ohci.c (Stephan Gatzka 2013-08-26 20:50:04 +0200 3876) module_init(fw_ohci_init);
7a723c6ed9e92 drivers/firewire/ohci.c (Stephan Gatzka 2013-08-26 20:50:04 +0200 3877) module_exit(fw_ohci_cleanup);
fe2af11c220c7 drivers/firewire/ohci.c (Axel Lin 2012-04-03 10:07:01 +0800 3878)
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3879) MODULE_AUTHOR("Kristian Hoegsberg <krh@bitplanet.net>");
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3880) MODULE_DESCRIPTION("Driver for PCI OHCI IEEE1394 controllers");
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3881) MODULE_LICENSE("GPL");
ed5689122f4cd drivers/firewire/fw-ohci.c (Kristian Høgsberg 2006-12-19 19:58:35 -0500 3882)
1e4c7b0dabb46 drivers/firewire/fw-ohci.c (Olaf Hering 2007-05-05 23:17:13 +0200 3883) /* Provide a module alias so root-on-sbp2 initrds don't break. */
1e4c7b0dabb46 drivers/firewire/fw-ohci.c (Olaf Hering 2007-05-05 23:17:13 +0200 3884) MODULE_ALIAS("ohci1394");
VisionFive2 Linux kernel
StarFive Tech Linux Kernel for VisionFive (JH7110) boards (mirror)
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