[deliverable/linux.git] / drivers / staging / brcm80211 / include / proto / bcmip.h

/*
 * Copyright (c) 2010 Broadcom Corporation
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef _bcmip_h_
#define _bcmip_h_

#include <typedefs.h>
#include <packed_section_start.h>

#define IP_VER_OFFSET		0x0
#define IP_VER_MASK		0xf0
#define IP_VER_SHIFT		4
#define IP_VER_4		4
#define IP_VER_6		6

#define IP_VER(ip_body) \
	((((uint8 *)(ip_body))[IP_VER_OFFSET] & IP_VER_MASK) >> IP_VER_SHIFT)

#define IPV4_TOS_OFFSET		1

#define IPV4_ADDR_LEN		4

#define	IPV4_TOS(ipv4_body)	(((uint8 *)(ipv4_body))[IPV4_TOS_OFFSET])

#define	IPV4_TOS_PREC_MASK	0xe0
#define	IPV4_TOS_PREC_SHIFT	5

BWL_PRE_PACKED_STRUCT struct ipv4_addr {
	uint8 addr[IPV4_ADDR_LEN];
} BWL_POST_PACKED_STRUCT;

#define IPV6_TRAFFIC_CLASS(ipv6_body) \
	(((((uint8 *)(ipv6_body))[0] & 0x0f) << 4) | \
	 ((((uint8 *)(ipv6_body))[1] & 0xf0) >> 4))

#ifndef IP_TOS
#define IP_TOS(ip_body) \
	(IP_VER(ip_body) == IP_VER_4 ? IPV4_TOS(ip_body) : \
	 IP_VER(ip_body) == IP_VER_6 ? IPV6_TRAFFIC_CLASS(ip_body) : 0)
#endif

#include <packed_section_end.h>

#endif				/* _bcmip_h_ */
Commit	Line	Data
cf2b4488 HP	1	/*
	2	* Copyright (c) 2010 Broadcom Corporation
	3	*
	4	* Permission to use, copy, modify, and/or distribute this software for any
	5	* purpose with or without fee is hereby granted, provided that the above
	6	* copyright notice and this permission notice appear in all copies.
	7	*
	8	* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
	9	* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
	10	* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
	11	* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
	12	* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
	13	* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
	14	* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
	15	*/
	16
	17	#ifndef _bcmip_h_
	18	#define _bcmip_h_
	19
cf2b4488	20	#include <typedefs.h>
cf2b4488 HP	21	#include <packed_section_start.h>
	22
	23	#define IP_VER_OFFSET 0x0
	24	#define IP_VER_MASK 0xf0
	25	#define IP_VER_SHIFT 4
	26	#define IP_VER_4 4
	27	#define IP_VER_6 6
	28
	29	#define IP_VER(ip_body) \
	30	((((uint8 *)(ip_body))[IP_VER_OFFSET] & IP_VER_MASK) >> IP_VER_SHIFT)
	31
cf2b4488	32	#define IPV4_TOS_OFFSET 1
cf2b4488 HP	33
	34	#define IPV4_ADDR_LEN 4
	35
cf2b4488 HP	36	#define IPV4_TOS(ipv4_body) (((uint8 *)(ipv4_body))[IPV4_TOS_OFFSET])
	37
	38	#define IPV4_TOS_PREC_MASK 0xe0
	39	#define IPV4_TOS_PREC_SHIFT 5
	40
cf2b4488 HP	41	BWL_PRE_PACKED_STRUCT struct ipv4_addr {
	42	uint8 addr[IPV4_ADDR_LEN];
	43	} BWL_POST_PACKED_STRUCT;
	44
cf2b4488 HP	45	#define IPV6_TRAFFIC_CLASS(ipv6_body) \
	46	(((((uint8 *)(ipv6_body))[0] & 0x0f) << 4) \| \
	47	((((uint8 *)(ipv6_body))[1] & 0xf0) >> 4))
	48
cf2b4488 HP	49	#ifndef IP_TOS
	50	#define IP_TOS(ip_body) \
	51	(IP_VER(ip_body) == IP_VER_4 ? IPV4_TOS(ip_body) : \
	52	IP_VER(ip_body) == IP_VER_6 ? IPV6_TRAFFIC_CLASS(ip_body) : 0)
	53	#endif
	54
	55	#include <packed_section_end.h>
	56
	57	#endif /* _bcmip_h_ */