madwifi/ath_hal/ah_os.h

169 lines
5.4 KiB
C

/*-
* Copyright (c) 2002-2006 Sam Leffler, Errno Consulting
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
* redistribution must be conditioned upon including a substantially
* similar Disclaimer requirement for further binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGES.
*
* $Id$
*/
#ifndef _ATH_AH_OS_H_
#define _ATH_AH_OS_H_
/*
* Atheros Hardware Access Layer (HAL) OS Dependent Definitions.
*/
/*
MadWifi safe register operations:
When hacking on registers directly, we need to use the macros below to
avoid concurrent PCI access and abort mode errors.
* ath_reg_read
* ATH_REG_WRITE
HAL-ONLY register operations:
* _OS_REG_READ
* _OS_REG_WRITE
* OS_REG_READ
* OS_REG_WRITE
* ath_hal_reg_read.
* ath_hal_reg_write
When compiled in HAL:
* We don't require locking overhead and function call except for
debugging.
* All HAL operations are executed in the context of a MadWifi wrapper
call that holds the HAL lock.
* Normally HAL is built with the non-modified version of this file, so
it doesn't have our funny macros anyway.
When compiled in MadWifi:
* The HAL wrapper API takes the HAL lock before invoking the HAL.
* HAL access is already protected, and MadWifi must NOT access the
functions listed above.
*/
/*
* When building the HAL proper, we use no GPL-licensed include files and must
* define Linux types ourselves. Please note that the definitions below don't
* exactly match those in <linux/types.h>
*/
#ifndef _LINUX_TYPES_H
/* NB: ARM defaults to unsigned, so be explicit */
typedef signed char int8_t;
typedef short int16_t;
typedef int int32_t;
typedef long long int64_t;
typedef unsigned char u_int8_t;
typedef unsigned short u_int16_t;
typedef unsigned int u_int32_t;
typedef unsigned long long u_int64_t;
typedef unsigned int size_t;
typedef unsigned int u_int;
typedef void* va_list;
#endif /* !_LINUX_TYPES_H */
struct ath_hal;
extern int ath_hal_dma_beacon_response_time;
extern int ath_hal_sw_beacon_response_time;
extern int ath_hal_additional_swba_backoff;
void __ahdecl ath_hal_printf(struct ath_hal *ah, HAL_BOOL prefer_alq, const char *fmt, ...)
__attribute__ ((__format__ (__printf__, 3, 4)));
#ifdef AH_DEBUG_ALQ
void __ahdecl ath_hal_logprintf(struct ath_hal *ah, const char *fmt, ...)
__attribute__ ((__format__ (__printf__, 2, 3)));
#endif
int __ahdecl ath_hal_memcmp(const void *a, const void *b, size_t n);
void *__ahdecl ath_hal_malloc(size_t size);
void __ahdecl ath_hal_free(void *p);
#ifndef abs
#define abs(_a) __builtin_abs(_a)
#endif
#ifndef labs
#define labs(_a) __builtin_labs(_a)
#endif
/* XXX: This should be stored per-device for proper multi-radio support */
extern const char *ath_hal_func;
extern const char *ath_hal_device;
extern int ath_hal_debug;
static inline void ath_hal_set_function(const char *name)
{
#ifdef AH_DEBUG
ath_hal_func = name;
#endif
}
static inline void ath_hal_set_device(const char *name)
{
#ifdef AH_DEBUG
ath_hal_device = name;
#endif
}
/*
* Linux-specific attach/detach methods needed for module reference counting.
*
* NB: These are intentionally not marked __ahdecl since they are
* compiled with the default calling convention and are not called
* from within the HAL.
*/
extern struct ath_hal *_ath_hal_attach(u_int16_t devid, HAL_SOFTC,
HAL_BUS_TAG, HAL_BUS_HANDLE,
HAL_STATUS *);
extern void _ath_hal_detach(struct ath_hal *);
void
ath_hal_print_decoded_register(struct ath_hal *ah,
const char *device_name,
u_int32_t address, u_int32_t oldval,
u_int32_t newval, HAL_BOOL bitfields);
void
ath_hal_print_register(struct ath_hal *ah,
const char *device_name,
u_int32_t address, u_int32_t value);
HAL_BOOL
ath_hal_lookup_register_name(struct ath_hal *ah, char *buf, int buflen,
u_int32_t address);
#endif /* _ATH_AH_OSDEP_H_ */