1. 根目录:
2. drivers
3. net
4. wireless
5. bcmdhd
6. include
7. osl.h

/*
 * OS Abstraction Layer
 *
 * Copyright (C) 1999-2013, Broadcom Corporation
 * 
 *      Unless you and Broadcom execute a separate written software license
 * agreement governing use of this software, this software is licensed to you
 * under the terms of the GNU General Public License version 2 (the "GPL"),
 * available at http://www.broadcom.com/licenses/GPLv2.php, with the
 * following added to such license:
 * 
 *      As a special exception, the copyright holders of this software give you
 * permission to link this software with independent modules, and to copy and
 * distribute the resulting executable under terms of your choice, provided that
 * you also meet, for each linked independent module, the terms and conditions of
 * the license of that module.  An independent module is a module which is not
 * derived from this software.  The special exception does not apply to any
 * modifications of the software.
 * 
 *      Notwithstanding the above, under no circumstances may you combine this
 * software in any way with any other Broadcom software provided under a license
 * other than the GPL, without Broadcom's express prior written consent.
 *
 * $Id: osl.h 370064 2012-11-20 21:00:25Z $
 */

#ifndef _osl_h_
#define _osl_h_

/* osl handle type forward declaration */
typedef struct osl_info osl_t;
typedef struct osl_dmainfo osldma_t;

#define OSL_PKTTAG_SZ	32 /* Size of PktTag */

/* Drivers use PKTFREESETCB to register a callback function when a packet is freed by OSL */
typedef void (*pktfree_cb_fn_t)(void *ctx, void *pkt, unsigned int status);

/* Drivers use REGOPSSET() to register register read/write funcitons */
typedef unsigned int (*osl_rreg_fn_t)(void *ctx, volatile void *reg, unsigned int size);
typedef void  (*osl_wreg_fn_t)(void *ctx, volatile void *reg, unsigned int val, unsigned int size);


#include <linux_osl.h>

#ifndef PKTDBG_TRACE
#define PKTDBG_TRACE(osh, pkt, bit)
#endif

#define PKTCTFMAP(osh, p)

/* --------------------------------------------------------------------------
** Register manipulation macros.
*/

#define	SET_REG(osh, r, mask, val)	W_REG((osh), (r), ((R_REG((osh), r) & ~(mask)) | (val)))

#ifndef AND_REG
#define AND_REG(osh, r, v)		W_REG(osh, (r), R_REG(osh, r) & (v))
#endif   /* !AND_REG */

#ifndef OR_REG
#define OR_REG(osh, r, v)		W_REG(osh, (r), R_REG(osh, r) | (v))
#endif   /* !OR_REG */

#if !defined(OSL_SYSUPTIME)
#define OSL_SYSUPTIME() (0)
#define OSL_SYSUPTIME_SUPPORT FALSE
#else
#define OSL_SYSUPTIME_SUPPORT TRUE
#endif /* OSL_SYSUPTIME */

#if !defined(PKTC)
#define	PKTCGETATTR(s)		(0)
#define	PKTCSETATTR(skb, f, p, b)
#define	PKTCCLRATTR(skb)
#define	PKTCCNT(skb)		(1)
#define	PKTCLEN(skb)		PKTLEN(NULL, skb)
#define	PKTCGETFLAGS(skb)	(0)
#define	PKTCSETFLAGS(skb, f)
#define	PKTCCLRFLAGS(skb)
#define	PKTCFLAGS(skb)		(0)
#define	PKTCSETCNT(skb, c)
#define	PKTCINCRCNT(skb)
#define	PKTCADDCNT(skb, c)
#define	PKTCSETLEN(skb, l)
#define	PKTCADDLEN(skb, l)
#define	PKTCSETFLAG(skb, fb)
#define	PKTCCLRFLAG(skb, fb)
#define	PKTCLINK(skb)		NULL
#define	PKTSETCLINK(skb, x)
#define FOREACH_CHAINED_PKT(skb, nskb) \
	for ((nskb) = NULL; (skb) != NULL; (skb) = (nskb))
#define	PKTCFREE		PKTFREE
#endif /* !linux || !PKTC */

#ifndef HNDCTF
#define PKTSETCHAINED(osh, skb)
#define PKTCLRCHAINED(osh, skb)
#define PKTISCHAINED(skb)	(FALSE)
#endif

#endif	/* _osl_h_ */