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/******************************************************************************
*
* 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=%p\n",
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 terminated\n"));
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);
}
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