achware.h 4.2 KB

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  1. /******************************************************************************
  2. *
  3. * Name: achware.h -- hardware specific interfaces
  4. *
  5. *****************************************************************************/
  6. /*
  7. * Copyright (C) 2000 - 2007, R. Byron Moore
  8. * All rights reserved.
  9. *
  10. * Redistribution and use in source and binary forms, with or without
  11. * modification, are permitted provided that the following conditions
  12. * are met:
  13. * 1. Redistributions of source code must retain the above copyright
  14. * notice, this list of conditions, and the following disclaimer,
  15. * without modification.
  16. * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  17. * substantially similar to the "NO WARRANTY" disclaimer below
  18. * ("Disclaimer") and any redistribution must be conditioned upon
  19. * including a substantially similar Disclaimer requirement for further
  20. * binary redistribution.
  21. * 3. Neither the names of the above-listed copyright holders nor the names
  22. * of any contributors may be used to endorse or promote products derived
  23. * from this software without specific prior written permission.
  24. *
  25. * Alternatively, this software may be distributed under the terms of the
  26. * GNU General Public License ("GPL") version 2 as published by the Free
  27. * Software Foundation.
  28. *
  29. * NO WARRANTY
  30. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  31. * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  32. * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
  33. * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  34. * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  35. * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  36. * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  37. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  38. * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  39. * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  40. * POSSIBILITY OF SUCH DAMAGES.
  41. */
  42. #ifndef __ACHWARE_H__
  43. #define __ACHWARE_H__
  44. /* PM Timer ticks per second (HZ) */
  45. #define PM_TIMER_FREQUENCY 3579545
  46. /* Values for the _SST reserved method */
  47. #define ACPI_SST_INDICATOR_OFF 0
  48. #define ACPI_SST_WORKING 1
  49. #define ACPI_SST_WAKING 2
  50. #define ACPI_SST_SLEEPING 3
  51. #define ACPI_SST_SLEEP_CONTEXT 4
  52. /* Prototypes */
  53. /*
  54. * hwacpi - high level functions
  55. */
  56. acpi_status acpi_hw_set_mode(u32 mode);
  57. u32 acpi_hw_get_mode(void);
  58. /*
  59. * hwregs - ACPI Register I/O
  60. */
  61. struct acpi_bit_register_info *acpi_hw_get_bit_register_info(u32 register_id);
  62. acpi_status
  63. acpi_hw_register_read(u8 use_lock, u32 register_id, u32 * return_value);
  64. acpi_status acpi_hw_register_write(u8 use_lock, u32 register_id, u32 value);
  65. acpi_status
  66. acpi_hw_low_level_read(u32 width,
  67. u32 * value, struct acpi_generic_address *reg);
  68. acpi_status
  69. acpi_hw_low_level_write(u32 width, u32 value, struct acpi_generic_address *reg);
  70. acpi_status acpi_hw_clear_acpi_status(void);
  71. /*
  72. * hwgpe - GPE support
  73. */
  74. acpi_status
  75. acpi_hw_write_gpe_enable_reg(struct acpi_gpe_event_info *gpe_event_info);
  76. acpi_status
  77. acpi_hw_disable_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
  78. struct acpi_gpe_block_info *gpe_block);
  79. acpi_status acpi_hw_clear_gpe(struct acpi_gpe_event_info *gpe_event_info);
  80. acpi_status
  81. acpi_hw_clear_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
  82. struct acpi_gpe_block_info *gpe_block);
  83. #ifdef ACPI_FUTURE_USAGE
  84. acpi_status
  85. acpi_hw_get_gpe_status(struct acpi_gpe_event_info *gpe_event_info,
  86. acpi_event_status * event_status);
  87. #endif /* ACPI_FUTURE_USAGE */
  88. acpi_status acpi_hw_disable_all_gpes(void);
  89. acpi_status acpi_hw_enable_all_runtime_gpes(void);
  90. acpi_status acpi_hw_enable_all_wakeup_gpes(void);
  91. acpi_status
  92. acpi_hw_enable_runtime_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
  93. struct acpi_gpe_block_info *gpe_block);
  94. #ifdef ACPI_FUTURE_USAGE
  95. /*
  96. * hwtimer - ACPI Timer prototypes
  97. */
  98. acpi_status acpi_get_timer_resolution(u32 * resolution);
  99. acpi_status acpi_get_timer(u32 * ticks);
  100. acpi_status
  101. acpi_get_timer_duration(u32 start_ticks, u32 end_ticks, u32 * time_elapsed);
  102. #endif /* ACPI_FUTURE_USAGE */
  103. #endif /* __ACHWARE_H__ */