utinit.c
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:7k
- /******************************************************************************
- *
- * Module Name: utinit - Common ACPI subsystem initialization
- * $Revision: 102 $
- *
- *****************************************************************************/
- /*
- * Copyright (C) 2000, 2001 R. Byron Moore
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
- #include "acpi.h"
- #include "achware.h"
- #include "acnamesp.h"
- #include "acevents.h"
- #include "acparser.h"
- #include "acdispat.h"
- #define _COMPONENT ACPI_UTILITIES
- MODULE_NAME ("utinit")
- #define ACPI_OFFSET(d,o) ((u32) &(((d *)0)->o))
- #define ACPI_FADT_OFFSET(o) ACPI_OFFSET (FADT_DESCRIPTOR, o)
- /*******************************************************************************
- *
- * FUNCTION: Acpi_ut_fadt_register_error
- *
- * PARAMETERS: *Register_name - Pointer to string identifying register
- * Value - Actual register contents value
- * Acpi_test_spec_section - TDS section containing assertion
- * Acpi_assertion - Assertion number being tested
- *
- * RETURN: AE_BAD_VALUE
- *
- * DESCRIPTION: Display failure message and link failure to TDS assertion
- *
- ******************************************************************************/
- static acpi_status
- acpi_ut_fadt_register_error (
- NATIVE_CHAR *register_name,
- u32 value,
- u32 offset)
- {
- REPORT_ERROR (
- ("Invalid FADT value %s=%lX at offset %lX FADT=%pn",
- register_name, value, offset, acpi_gbl_FADT));
- return (AE_BAD_VALUE);
- }
- /******************************************************************************
- *
- * FUNCTION: Acpi_ut_validate_fadt
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Validate various ACPI registers in the FADT
- *
- ******************************************************************************/
- acpi_status
- acpi_ut_validate_fadt (
- void)
- {
- acpi_status status = AE_OK;
- /*
- * Verify Fixed ACPI Description Table fields,
- * but don't abort on any problems, just display error
- */
- if (acpi_gbl_FADT->pm1_evt_len < 4) {
- status = acpi_ut_fadt_register_error ("PM1_EVT_LEN",
- (u32) acpi_gbl_FADT->pm1_evt_len,
- ACPI_FADT_OFFSET (pm1_evt_len));
- }
- if (!acpi_gbl_FADT->pm1_cnt_len) {
- status = acpi_ut_fadt_register_error ("PM1_CNT_LEN", 0,
- ACPI_FADT_OFFSET (pm1_cnt_len));
- }
- if (!ACPI_VALID_ADDRESS (acpi_gbl_FADT->Xpm1a_evt_blk.address)) {
- status = acpi_ut_fadt_register_error ("X_PM1a_EVT_BLK", 0,
- ACPI_FADT_OFFSET (Xpm1a_evt_blk.address));
- }
- if (!ACPI_VALID_ADDRESS (acpi_gbl_FADT->Xpm1a_cnt_blk.address)) {
- status = acpi_ut_fadt_register_error ("X_PM1a_CNT_BLK", 0,
- ACPI_FADT_OFFSET (Xpm1a_cnt_blk.address));
- }
- if (!ACPI_VALID_ADDRESS (acpi_gbl_FADT->Xpm_tmr_blk.address)) {
- status = acpi_ut_fadt_register_error ("X_PM_TMR_BLK", 0,
- ACPI_FADT_OFFSET (Xpm_tmr_blk.address));
- }
- if ((ACPI_VALID_ADDRESS (acpi_gbl_FADT->Xpm2_cnt_blk.address) &&
- !acpi_gbl_FADT->pm2_cnt_len)) {
- status = acpi_ut_fadt_register_error ("PM2_CNT_LEN",
- (u32) acpi_gbl_FADT->pm2_cnt_len,
- ACPI_FADT_OFFSET (pm2_cnt_len));
- }
- if (acpi_gbl_FADT->pm_tm_len < 4) {
- status = acpi_ut_fadt_register_error ("PM_TM_LEN",
- (u32) acpi_gbl_FADT->pm_tm_len,
- ACPI_FADT_OFFSET (pm_tm_len));
- }
- /* length of GPE blocks must be a multiple of 2 */
- if (ACPI_VALID_ADDRESS (acpi_gbl_FADT->Xgpe0blk.address) &&
- (acpi_gbl_FADT->gpe0blk_len & 1)) {
- status = acpi_ut_fadt_register_error ("(x)GPE0_BLK_LEN",
- (u32) acpi_gbl_FADT->gpe0blk_len,
- ACPI_FADT_OFFSET (gpe0blk_len));
- }
- if (ACPI_VALID_ADDRESS (acpi_gbl_FADT->Xgpe1_blk.address) &&
- (acpi_gbl_FADT->gpe1_blk_len & 1)) {
- status = acpi_ut_fadt_register_error ("(x)GPE1_BLK_LEN",
- (u32) acpi_gbl_FADT->gpe1_blk_len,
- ACPI_FADT_OFFSET (gpe1_blk_len));
- }
- return (status);
- }
- /******************************************************************************
- *
- * FUNCTION: Acpi_ut_terminate
- *
- * PARAMETERS: none
- *
- * RETURN: none
- *
- * DESCRIPTION: free memory allocated for table storage.
- *
- ******************************************************************************/
- void
- acpi_ut_terminate (void)
- {
- FUNCTION_TRACE ("Ut_terminate");
- /* Free global tables, etc. */
- if (acpi_gbl_gpe0enable_register_save) {
- ACPI_MEM_FREE (acpi_gbl_gpe0enable_register_save);
- }
- if (acpi_gbl_gpe1_enable_register_save) {
- ACPI_MEM_FREE (acpi_gbl_gpe1_enable_register_save);
- }
- return_VOID;
- }
- /*******************************************************************************
- *
- * FUNCTION: Acpi_ut_subsystem_shutdown
- *
- * PARAMETERS: none
- *
- * RETURN: none
- *
- * DESCRIPTION: Shutdown the various subsystems. Don't delete the mutex
- * objects here -- because the AML debugger may be still running.
- *
- ******************************************************************************/
- acpi_status
- acpi_ut_subsystem_shutdown (void)
- {
- FUNCTION_TRACE ("Ut_subsystem_shutdown");
- /* Just exit if subsystem is already shutdown */
- if (acpi_gbl_shutdown) {
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "ACPI Subsystem is already terminatedn"));
- return_ACPI_STATUS (AE_OK);
- }
- /* Subsystem appears active, go ahead and shut it down */
- acpi_gbl_shutdown = TRUE;
- ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Shutting down ACPI Subsystem...n"));
- /* Close the Namespace */
- acpi_ns_terminate ();
- /* Close the Acpi_event Handling */
- acpi_ev_terminate ();
- /* Close the globals */
- acpi_ut_terminate ();
- /* Flush the local cache(s) */
- acpi_ut_delete_generic_state_cache ();
- acpi_ut_delete_object_cache ();
- acpi_ds_delete_walk_state_cache ();
- /* Close the Parser */
- /* TBD: [Restructure] Acpi_ps_terminate () */
- acpi_ps_delete_parse_cache ();
- /* Debug only - display leftover memory allocation, if any */
- #ifdef ACPI_DBG_TRACK_ALLOCATIONS
- acpi_ut_dump_allocations (ACPI_UINT32_MAX, NULL);
- #endif
- return_ACPI_STATUS (AE_OK);
- }