/* * linux/drivers/usbd/net_fd/crc10.h * * Copyright (c) 2000, 2001, 2002 Lineo * Copyright (c) 2001 Hewlett Packard * * By:  *      Stuart Lynne <sl@lineo.com>,  *      Tom Rushworth <tbr@lineo.com>,  *      Bruce Balden <balden@lineo.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * */extern __u16 crc10_table[256];#define CRC10_INITFCS	0x000	// Initial FCS value#define CRC10_GOODFCS	0x000	// Good final FCS value//#define CRC10_FCS(fcs, c) ((((fcs) << 8) && 0x3ff) ^ crc10_table[((fcs) >> 2) & 0xff]) ^ (c)//#define CRC16_FCS(fcs, c) (((fcs) >> 8) ^ crc16_table[((fcs) ^ (c)) & 0xff])#define CRC10_FCS(fcs, c) (						\				(((fcs) << 8) & 0x3ff)			\				^ crc10_table[((fcs) >> 2) & 0xff]	\				^ (c)					\				)/** * fcs_memcpy10 - memcpy and calculate fcs * @dp: * @sp: * @len: * @fcs: * * Perform a memcpy and calculate fcs using ppp 10bit CRC algorithm. */static __u16 __inline__ fcs_memcpy10 (unsigned char *dp, unsigned char *sp, int len, __u16 fcs){	for (; len-- > 0; fcs = CRC10_FCS (fcs, *dp++ = *sp++));	return fcs;}/** * fcs_pad10 - pad and calculate fcs * @dp: * @len: * @fcs: * * Pad and calculate fcs using ppp 10bit CRC algorithm. */static __u16 __inline__ fcs_pad10 (unsigned char *dp, int len, __u16 fcs){	for (; len-- > 0; fcs = CRC10_FCS (fcs, *dp++ = '\0'));	return fcs;}/**      * fcs_compute10 - memcpy and calculate fcs * @sp: * @len: * @fcs: * * Perform a memcpy and calculate fcs using ppp 10bit CRC algorithm. */static __u16 __inline__ fcs_compute10 (unsigned char *sp, int len, __u16 fcs){	for (; len-- > 0; fcs = CRC10_FCS (fcs, *sp++));	return fcs;}