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[/] [test_project/] [trunk/] [linux_sd_driver/] [include/] [linux/] [crc-itu-t.h] - Blame information for rev 62

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/*
 *      crc-itu-t.h - CRC ITU-T V.41 routine
 *
 * Implements the standard CRC ITU-T V.41:
 *   Width 16
 *   Poly  0x0x1021 (x^16 + x^12 + x^15 + 1)
 *   Init  0
 *
 * This source code is licensed under the GNU General Public License,
 * Version 2. See the file COPYING for more details.
 */
 
#ifndef CRC_ITU_T_H
#define CRC_ITU_T_H
 
#include <linux/types.h>
 
extern u16 const crc_itu_t_table[256];
 
extern u16 crc_itu_t(u16 crc, const u8 *buffer, size_t len);
 
static inline u16 crc_itu_t_byte(u16 crc, const u8 data)
{
        return (crc << 8) ^ crc_itu_t_table[((crc >> 8) ^ data) & 0xff];
}
 
#endif /* CRC_ITU_T_H */
 

Line No.	Rev	Author	Line
1	62	marcus.erl	`/*`
2			`* crc-itu-t.h - CRC ITU-T V.41 routine`
3			`*`
4			`* Implements the standard CRC ITU-T V.41:`
5			`* Width 16`
6			`* Poly 0x0x1021 (x^16 + x^12 + x^15 + 1)`
7			`* Init 0`
8			`*`
9			`* This source code is licensed under the GNU General Public License,`
10			`* Version 2. See the file COPYING for more details.`
11			`*/`
12
13			`#ifndef CRC_ITU_T_H`
14			`#define CRC_ITU_T_H`
15
16			`#include <linux/types.h>`
17
18			`extern u16 const crc_itu_t_table[256];`
19
20			`extern u16 crc_itu_t(u16 crc, const u8 *buffer, size_t len);`
21
22			`static inline u16 crc_itu_t_byte(u16 crc, const u8 data)`
23			`{`
24			`return (crc << 8) ^ crc_itu_t_table[((crc >> 8) ^ data) & 0xff];`
25			`}`
26
27			`#endif /* CRC_ITU_T_H */`
28

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[/] [test_project/] [trunk/] [linux_sd_driver/] [include/] [linux/] [crc-itu-t.h] - Blame information for rev 62