/******************************************************************************
   *

   * Name: aclinux.h - OS specific defines, etc. for Linux

   *
   *****************************************************************************/
  
  /*

   * Copyright (C) 2000 - 2011, Intel Corp.

   * 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
   *    substantially 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 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.
   */
  
  #ifndef __ACLINUX_H__
  #define __ACLINUX_H__

  /* Common (in-kernel/user-space) ACPICA configuration */

  #define ACPI_USE_SYSTEM_CLIBRARY
  #define ACPI_USE_DO_WHILE_0

  #define ACPI_MUTEX_TYPE             ACPI_BINARY_SEMAPHORE

  #ifdef __KERNEL__

  #include <linux/string.h>
  #include <linux/kernel.h>
  #include <linux/ctype.h>

  #include <linux/sched.h>

  #include <asm/system.h>

  #include <linux/atomic.h>

  #include <asm/div64.h>
  #include <asm/acpi.h>

  #include <linux/slab.h>

  #include <linux/spinlock_types.h>

  #include <asm/current.h>

  /* Host-dependent types and defines for in-kernel ACPICA */

  #define ACPI_MACHINE_WIDTH          BITS_PER_LONG

  #define ACPI_EXPORT_SYMBOL(symbol)  EXPORT_SYMBOL(symbol);
  #define strtoul                     simple_strtoul

  #define acpi_cache_t                        struct kmem_cache
  #define acpi_spinlock                       spinlock_t *
  #define acpi_cpu_flags                      unsigned long

  
  #else /* !__KERNEL__ */

  
  #include <stdarg.h>
  #include <string.h>
  #include <stdlib.h>
  #include <ctype.h>
  #include <unistd.h>

  /* Host-dependent types and defines for user-space ACPICA */
  
  #define ACPI_FLUSH_CPU_CACHE()

  #define ACPI_CAST_PTHREAD_T(pthread) ((acpi_thread_id) (pthread))

  #if defined(__ia64__) || defined(__x86_64__)
  #define ACPI_MACHINE_WIDTH          64
  #define COMPILER_DEPENDENT_INT64    long
  #define COMPILER_DEPENDENT_UINT64   unsigned long
  #else
  #define ACPI_MACHINE_WIDTH          32
  #define COMPILER_DEPENDENT_INT64    long long
  #define COMPILER_DEPENDENT_UINT64   unsigned long long
  #define ACPI_USE_NATIVE_DIVIDE
  #endif

  #ifndef __cdecl

  #define __cdecl

  #endif

  #endif /* __KERNEL__ */

  
  /* Linux uses GCC */
  
  #include "acgcc.h"

  #ifdef __KERNEL__

  #include <acpi/actypes.h>

  /*
   * Overrides for in-kernel ACPICA
   */

  static inline acpi_thread_id acpi_os_get_thread_id(void)
  {

  	return (acpi_thread_id)(unsigned long)current;

  }

  /*
   * The irqs_disabled() check is for resume from RAM.
   * Interrupts are off during resume, just like they are for boot.
   * However, boot has  (system_state != SYSTEM_RUNNING)
   * to quiet __might_sleep() in kmalloc() and resume does not.
   */

  static inline void *acpi_os_allocate(acpi_size size)
  {

  	return kmalloc(size, irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL);

  }

  static inline void *acpi_os_allocate_zeroed(acpi_size size)
  {

  	return kzalloc(size, irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL);

  }

  static inline void *acpi_os_acquire_object(acpi_cache_t * cache)
  {
  	return kmem_cache_zalloc(cache,

  		irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL);

  }

  #define ACPI_ALLOCATE(a)        acpi_os_allocate(a)
  #define ACPI_ALLOCATE_ZEROED(a) acpi_os_allocate_zeroed(a)
  #define ACPI_FREE(a)            kfree(a)

  #ifndef CONFIG_PREEMPT
  /*
   * Used within ACPICA to show where it is safe to preempt execution
   * when CONFIG_PREEMPT=n
   */

  #define ACPI_PREEMPTION_POINT() \
  	do { \

  		if (!irqs_disabled()) \

  			cond_resched(); \

  	} while (0)

  #endif

  /*
   * When lockdep is enabled, the spin_lock_init() macro stringifies it's
   * argument and uses that as a name for the lock in debugging.
   * By executing spin_lock_init() in a macro the key changes from "lock" for
   * all locks to the name of the argument of acpi_os_create_lock(), which
   * prevents lockdep from reporting false positives for ACPICA locks.
   */
  #define acpi_os_create_lock(__handle)				\
  ({								\
  	spinlock_t *lock = ACPI_ALLOCATE(sizeof(*lock));	\
  								\
  	if (lock) {						\
  		*(__handle) = lock;				\
  		spin_lock_init(*(__handle));			\
  	}							\
  	lock ? AE_OK : AE_NO_MEMORY;				\
  })

  #endif /* __KERNEL__ */
  
  #endif /* __ACLINUX_H__ */