com32/gpllib/acpi/acpi.c

   1 /* ----------------------------------------------------------------------- *
   2  *
   3  *   Copyright 2009 Erwan Velu - All Rights Reserved
   4  *
   5  *   Permission is hereby granted, free of charge, to any person
   6  *   obtaining a copy of this software and associated documentation
   7  *   files (the "Software"), to deal in the Software without
   8  *   restriction, including without limitation the rights to use,
   9  *   copy, modify, merge, publish, distribute, sublicense, and/or
  10  *   sell copies of the Software, and to permit persons to whom
  11  *   the Software is furnished to do so, subject to the following
  12  *   conditions:
  13  *
  14  *   The above copyright notice and this permission notice shall
  15  *   be included in all copies or substantial portions of the Software.
  16  *
  17  *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18  *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  19  *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  20  *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  21  *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  22  *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  23  *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  24  *   OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  * -----------------------------------------------------------------------
  27 */
  28
  29 #include <stdio.h>
  30 #include <string.h>
  31 #include <memory.h>
  32 #include "acpi/acpi.h"
  33
  34 void dbg_printf(const char *fmt, ...)
  35 {
  36         va_list args;
  37         va_start(args, fmt);
  38         vfprintf(stderr, fmt, args);
  39         va_end(args);
  40 }
  41
  42 void init_acpi(s_acpi * acpi)
  43 {
  44     memset(acpi, 0, sizeof(s_acpi));
  45 }
  46
  47 int parse_acpi(s_acpi * acpi)
  48 {
  49     int ret_val;
  50     init_acpi(acpi);
  51
  52     /* Let's seach for RSDP table */
  53     if ((ret_val = search_rsdp(acpi)) != RSDP_TABLE_FOUND)
  54         return ret_val;
  55
  56     /* Let's seach for RSDT table
  57      * That's not a big deal not having it, XSDT is far more relevant */
  58     parse_rsdt(&acpi->rsdt);
  59     if ((ret_val = parse_xsdt(acpi)) != XSDT_TABLE_FOUND)
  60         return ret_val;
  61
  62     return ACPI_FOUND;
  63 }
  64
  65 void get_acpi_description_header(uint8_t * q, s_acpi_description_header * adh)
  66 {
  67     cp_str_struct(adh->signature);
  68     cp_struct(&adh->length);
  69     cp_struct(&adh->revision);
  70     cp_struct(&adh->checksum);
  71     cp_str_struct(adh->oem_id);
  72     cp_str_struct(adh->oem_table_id);
  73     cp_struct(&adh->oem_revision);
  74     cp_str_struct(adh->creator_id);
  75     cp_struct(&adh->creator_revision);
  76     DEBUG_PRINT(("acpi_header at %p = %s | %s | %s\n", q, adh->signature,adh->oem_id, adh->creator_id ));
  77 }