mirror of https://github.com/proski/madwifi
85 lines
3.6 KiB
C
85 lines
3.6 KiB
C
/*-
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* Copyright (c) 2007 Michael Taylor
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
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* redistribution must be conditioned upon including a substantially
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* similar Disclaimer requirement for further binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
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* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGES.
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*
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* $Id: foo mtaylor $
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*/
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/*
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* This file provides some macros that are used by if_ath_hal.h,
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* if_ath_hal_wrappers.h, and if_ath_hal_wrappers.c.
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*
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* The macros are provided for the HAL lock and for dynamically deciding whether
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* to define the HAL wrapper functions as inline or in the implementation file
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* at build time. i.e. inline for speed, or non-inline for debugging visibility
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* into the HAL methods being called (despite obfuscation).
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*
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* The if_ath_hal.h file is generated from ath_hal/ah.h at build time by the
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* build system.
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*/
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#ifndef _IF_ATH_HAL_MACROS_H_
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#define _IF_ATH_HAL_MACROS_H_
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#define ATH_HAL_LOCK_INIT(_sc) spin_lock_init(&(_sc)->sc_hal_lock)
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#define ATH_HAL_LOCK_DESTROY(_sc)
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#define ATH_HAL_LOCK_IRQ(_sc) do { \
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unsigned long __sc_halLockflags; \
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ATH_HAL_LOCK_CHECK(_sc); \
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spin_lock_irqsave(&(_sc)->sc_hal_lock, __sc_halLockflags);
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#define ATH_HAL_UNLOCK_IRQ(_sc) \
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ATH_HAL_LOCK_ASSERT(_sc); \
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spin_unlock_irqrestore(&(_sc)->sc_hal_lock, __sc_halLockflags); \
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} while (0)
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#define ATH_HAL_UNLOCK_IRQ_EARLY(_sc) \
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ATH_HAL_LOCK_ASSERT(_sc); \
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spin_unlock_irqrestore(&(_sc)->sc_hal_lock, __sc_halLockflags);
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#if (defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)) && defined(spin_is_locked)
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#define ATH_HAL_LOCK_ASSERT(_sc) \
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KASSERT(spin_is_locked(&(_sc)->sc_hal_lock), ("HAL not locked!"))
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#if (defined(ATH_DEBUG_SPINLOCKS))
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#define ATH_HAL_LOCK_CHECK(_sc) do { \
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if (spin_is_locked(&(_sc)->sc_hal_lock)) \
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IPRINTF(_sc, "About to block on HAL lock! [%s:%d]\n", __func__, __LINE__); \
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} while(0)
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#else /* #if (defined(ATH_DEBUG_SPINLOCKS)) */
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#define ATH_HAL_LOCK_CHECK(_sc)
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#endif /* #if (defined(ATH_DEBUG_SPINLOCKS)) */
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#else
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#define ATH_HAL_LOCK_ASSERT(_sc)
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#define ATH_HAL_LOCK_CHECK(_sc)
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#endif
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#endif /* #ifndef _IF_ATH_HAL_MACROS_H_ */
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