Subversion Repositories HelenOS

Rev

Rev 1888 | Blame | Compare with Previous | Last modification | View Log | Download | RSS feed

  1. /*
  2.  * Copyright (c) 2005 Jakub Jermar
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @addtogroup genarch
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #ifndef KERN_ACPI_H_
  36. #define KERN_ACPI_H_
  37.  
  38. #include <arch/types.h>
  39.  
  40. /* Root System Description Pointer */
  41. struct acpi_rsdp {
  42.     uint8_t signature[8];
  43.     uint8_t checksum;
  44.     uint8_t oemid[6];
  45.     uint8_t revision;
  46.     uint32_t rsdt_address;
  47.     uint32_t length;
  48.     uint64_t xsdt_address;
  49.     uint32_t ext_checksum;
  50.     uint8_t reserved[3];
  51. } __attribute__ ((packed));
  52.  
  53. /* System Description Table Header */
  54. struct acpi_sdt_header {
  55.     uint8_t signature[4];
  56.     uint32_t length;
  57.     uint8_t revision;
  58.     uint8_t checksum;
  59.     uint8_t oemid[6];
  60.     uint8_t oem_table_id[8];
  61.     uint32_t oem_revision;
  62.     uint32_t creator_id;
  63.     uint32_t creator_revision;
  64. } __attribute__ ((packed));;
  65.  
  66. struct acpi_signature_map {
  67.     uint8_t *signature;
  68.     struct acpi_sdt_header **sdt_ptr;
  69.     char *description;
  70. };
  71.  
  72. /* Root System Description Table */
  73. struct acpi_rsdt {
  74.     struct acpi_sdt_header header;
  75.     uint32_t entry[];
  76. } __attribute__ ((packed));;
  77.  
  78. /* Extended System Description Table */
  79. struct acpi_xsdt {
  80.     struct acpi_sdt_header header;
  81.     uint64_t entry[];
  82. } __attribute__ ((packed));;
  83.  
  84. extern struct acpi_rsdp *acpi_rsdp;
  85. extern struct acpi_rsdt *acpi_rsdt;
  86. extern struct acpi_xsdt *acpi_xsdt;
  87.  
  88. extern void acpi_init(void);
  89. extern int acpi_sdt_check(uint8_t *sdt);
  90.  
  91. #endif /* KERN_ACPI_H_ */
  92.  
  93. /** @}
  94.  */
  95.