drivers/bus/acpi/utils/cminit.c

   1 /******************************************************************************
   2  *
   3  * Module Name: cminit - Common ACPI subsystem initialization
   4  *              $Revision$
   5  *
   6  *****************************************************************************/
   7
   8 /*
   9  *  Copyright (C) 2000, 2001 R. Byron Moore
  10  *
  11  *  This program is free software; you can redistribute it and/or modify
  12  *  it under the terms of the GNU General Public License as published by
  13  *  the Free Software Foundation; either version 2 of the License, or
  14  *  (at your option) any later version.
  15  *
  16  *  This program is distributed in the hope that it will be useful,
  17  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  *  GNU General Public License for more details.
  20  *
  21  *  You should have received a copy of the GNU General Public License
  22  *  along with this program; if not, write to the Free Software
  23  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  24  */
  25
  26
  27 #include "acpi.h"
  28 #include "achware.h"
  29 #include "acnamesp.h"
  30 #include "acevents.h"
  31 #include "acparser.h"
  32 #include "acdispat.h"
  33
  34 #define _COMPONENT          ACPI_UTILITIES
  35          MODULE_NAME         ("cminit")
  36
  37
  38 #define ACPI_OFFSET(d,o)    ((u32) &(((d *)0)->o))
  39 #define ACPI_FADT_OFFSET(o) ACPI_OFFSET (FADT_DESCRIPTOR, o)
  40
  41 /*******************************************************************************
  42  *
  43  * FUNCTION:    Acpi_cm_fadt_register_error
  44  *
  45  * PARAMETERS:  *Register_name          - Pointer to string identifying register
  46  *              Value                   - Actual register contents value
  47  *              Acpi_test_spec_section  - TDS section containing assertion
  48  *              Acpi_assertion          - Assertion number being tested
  49  *
  50  * RETURN:      AE_BAD_VALUE
  51  *
  52  * DESCRIPTION: Display failure message and link failure to TDS assertion
  53  *
  54  ******************************************************************************/
  55
  56 static ACPI_STATUS
  57 acpi_cm_fadt_register_error (
  58         NATIVE_CHAR             *register_name,
  59         u32                     value,
  60         u32                     offset)
  61 {
  62
  63         REPORT_ERROR (
  64                 ("Invalid FADT value %s=%lX at offset %lX FADT=%p\n",
  65                 register_name, value, offset, acpi_gbl_FADT));
  66
  67
  68         return (AE_BAD_VALUE);
  69 }
  70
  71
  72 /******************************************************************************
  73  *
  74  * FUNCTION:    Acpi_cm_validate_fadt
  75  *
  76  * PARAMETERS:  None
  77  *
  78  * RETURN:      Status
  79  *
  80  * DESCRIPTION: Validate various ACPI registers in the FADT
  81  *
  82  ******************************************************************************/
  83
  84 ACPI_STATUS
  85 acpi_cm_validate_fadt (
  86         void)
  87 {
  88         ACPI_STATUS                 status = AE_OK;
  89
  90
  91         /*
  92          * Verify Fixed ACPI Description Table fields,
  93          * but don't abort on any problems, just display error
  94          */
  95
  96         if (acpi_gbl_FADT->pm1_evt_len < 4) {
  97                 status = acpi_cm_fadt_register_error ("PM1_EVT_LEN",
  98                                   (u32) acpi_gbl_FADT->pm1_evt_len,
  99                                   ACPI_FADT_OFFSET (pm1_evt_len));
 100         }
 101
 102         if (!acpi_gbl_FADT->pm1_cnt_len) {
 103                 status = acpi_cm_fadt_register_error ("PM1_CNT_LEN", 0,
 104                                   ACPI_FADT_OFFSET (pm1_cnt_len));
 105         }
 106
 107         if (!ACPI_VALID_ADDRESS (acpi_gbl_FADT->Xpm1a_evt_blk.address)) {
 108                 status = acpi_cm_fadt_register_error ("X_PM1a_EVT_BLK", 0,
 109                                   ACPI_FADT_OFFSET (Xpm1a_evt_blk.address));
 110         }
 111
 112         if (!ACPI_VALID_ADDRESS (acpi_gbl_FADT->Xpm1a_cnt_blk.address)) {
 113                 status = acpi_cm_fadt_register_error ("X_PM1a_CNT_BLK", 0,
 114                                   ACPI_FADT_OFFSET (Xpm1a_cnt_blk.address));
 115         }
 116
 117         if (!ACPI_VALID_ADDRESS (acpi_gbl_FADT->Xpm_tmr_blk.address)) {
 118                 status = acpi_cm_fadt_register_error ("X_PM_TMR_BLK", 0,
 119                                   ACPI_FADT_OFFSET (Xpm_tmr_blk.address));
 120         }
 121
 122         if ((ACPI_VALID_ADDRESS (acpi_gbl_FADT->Xpm2_cnt_blk.address) &&
 123                 !acpi_gbl_FADT->pm2_cnt_len)) {
 124                 status = acpi_cm_fadt_register_error ("PM2_CNT_LEN",
 125                                   (u32) acpi_gbl_FADT->pm2_cnt_len,
 126                                   ACPI_FADT_OFFSET (pm2_cnt_len));
 127         }
 128
 129         if (acpi_gbl_FADT->pm_tm_len < 4) {
 130                 status = acpi_cm_fadt_register_error ("PM_TM_LEN",
 131                                   (u32) acpi_gbl_FADT->pm_tm_len,
 132                                   ACPI_FADT_OFFSET (pm_tm_len));
 133         }
 134
 135         /* length of GPE blocks must be a multiple of 2 */
 136
 137
 138         if (ACPI_VALID_ADDRESS (acpi_gbl_FADT->Xgpe0blk.address) &&
 139                 (acpi_gbl_FADT->gpe0blk_len & 1)) {
 140                 status = acpi_cm_fadt_register_error ("(x)GPE0_BLK_LEN",
 141                                   (u32) acpi_gbl_FADT->gpe0blk_len,
 142                                   ACPI_FADT_OFFSET (gpe0blk_len));
 143         }
 144
 145         if (ACPI_VALID_ADDRESS (acpi_gbl_FADT->Xgpe1_blk.address) &&
 146                 (acpi_gbl_FADT->gpe1_blk_len & 1)) {
 147                 status = acpi_cm_fadt_register_error ("(x)GPE1_BLK_LEN",
 148                                   (u32) acpi_gbl_FADT->gpe1_blk_len,
 149                                   ACPI_FADT_OFFSET (gpe1_blk_len));
 150         }
 151
 152         return (status);
 153 }
 154
 155
 156 /******************************************************************************
 157  *
 158  * FUNCTION:    Acpi_cm_terminate
 159  *
 160  * PARAMETERS:  none
 161  *
 162  * RETURN:      none
 163  *
 164  * DESCRIPTION: free memory allocated for table storage.
 165  *
 166  ******************************************************************************/
 167
 168 void
 169 acpi_cm_terminate (void)
 170 {
 171
 172
 173         /* Free global tables, etc. */
 174
 175         if (acpi_gbl_gpe0enable_register_save) {
 176                 acpi_cm_free (acpi_gbl_gpe0enable_register_save);
 177         }
 178
 179         if (acpi_gbl_gpe1_enable_register_save) {
 180                 acpi_cm_free (acpi_gbl_gpe1_enable_register_save);
 181         }
 182
 183
 184         return;
 185 }
 186
 187
 188 /******************************************************************************
 189  *
 190  * FUNCTION:    Acpi_cm_subsystem_shutdown
 191  *
 192  * PARAMETERS:  none
 193  *
 194  * RETURN:      none
 195  *
 196  * DESCRIPTION: Shutdown the various subsystems.  Don't delete the mutex
 197  *              objects here -- because the AML debugger may be still running.
 198  *
 199  ******************************************************************************/
 200
 201 ACPI_STATUS
 202 acpi_cm_subsystem_shutdown (void)
 203 {
 204
 205         /* Just exit if subsystem is already shutdown */
 206
 207         if (acpi_gbl_shutdown) {
 208                 return (AE_OK);
 209         }
 210
 211         /* Subsystem appears active, go ahead and shut it down */
 212
 213         acpi_gbl_shutdown = TRUE;
 214
 215         /* Close the Namespace */
 216
 217         acpi_ns_terminate ();
 218
 219         /* Close the Acpi_event Handling */
 220
 221         acpi_ev_terminate ();
 222
 223         /* Close the globals */
 224
 225         acpi_cm_terminate ();
 226
 227         /* Flush the local cache(s) */
 228
 229         acpi_cm_delete_generic_state_cache ();
 230         acpi_cm_delete_object_cache ();
 231         acpi_ds_delete_walk_state_cache ();
 232
 233         /* Close the Parser */
 234
 235         /* TBD: [Restructure] Acpi_ps_terminate () */
 236
 237         acpi_ps_delete_parse_cache ();
 238
 239         /* Debug only - display leftover memory allocation, if any */
 240 #ifdef ENABLE_DEBUGGER
 241         acpi_cm_dump_current_allocations (ACPI_UINT32_MAX, NULL);
 242 #endif
 243
 244         return (AE_OK);
 245 }
 246
 247