09c434b8a0047 (Thomas Gleixner 2019-05-19 13:08:20 +0100 1) // SPDX-License-Identifier: GPL-2.0-only
556d2f055bf6d (Yalin Wang 2014-11-03 03:01:03 +0100 2) #ifndef CONFIG_HAVE_ARCH_BITREVERSE
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 3) #include <linux/types.h>
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 4) #include <linux/module.h>
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 5) #include <linux/bitrev.h>
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 6)
0258736a0a2cd (Cal Peake 2006-12-10 06:22:05 -0500 7) MODULE_AUTHOR("Akinobu Mita <akinobu.mita@gmail.com>");
0258736a0a2cd (Cal Peake 2006-12-10 06:22:05 -0500 8) MODULE_DESCRIPTION("Bit ordering reversal functions");
0258736a0a2cd (Cal Peake 2006-12-10 06:22:05 -0500 9) MODULE_LICENSE("GPL");
0258736a0a2cd (Cal Peake 2006-12-10 06:22:05 -0500 10)
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 11) const u8 byte_rev_table[256] = {
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 12) 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 13) 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 14) 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 15) 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 16) 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 17) 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 18) 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 19) 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 20) 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 21) 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 22) 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 23) 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 24) 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 25) 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 26) 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 27) 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 28) 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 29) 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 30) 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 31) 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 32) 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 33) 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 34) 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 35) 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 36) 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 37) 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 38) 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 39) 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 40) 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 41) 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 42) 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 43) 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff,
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 44) };
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 45) EXPORT_SYMBOL_GPL(byte_rev_table);
a5cfc1ec58a07 (Akinobu Mita 2006-12-08 02:36:25 -0800 46)
556d2f055bf6d (Yalin Wang 2014-11-03 03:01:03 +0100 47) #endif /* CONFIG_HAVE_ARCH_BITREVERSE */