linux/drivers/acpi/utilities/utinit.c
Bob Moore 4119532c95 ACPI: ACPICA 20060526
Restructured, flattened, and simplified the internal
interfaces for namespace object evaluation - resulting
in smaller code, less CPU stack use, and fewer
interfaces. (With assistance from Mikhail Kouzmich)

Fixed a problem with the CopyObject operator where the
first parameter was not typed correctly for the parser,
interpreter, compiler, and disassembler. Caused various
errors and unexpected behavior.

Fixed a problem where a ShiftLeft or ShiftRight of
more than 64 bits produced incorrect results with some
C compilers. Since the behavior of C compilers when
the shift value is larger than the datatype width is
apparently not well defined, the interpreter now detects
this condition and simply returns zero as expected in all
such cases. (BZ 395)

Fixed problem reports (Valery Podrezov) integrated: -
Update String-to-Integer conversion to match ACPI 3.0A spec
http://bugzilla.kernel.org/show_bug.cgi?id=5329
Allow interpreter to handle nested method declarations
http://bugzilla.kernel.org/show_bug.cgi?id=5361

Fixed problem reports (Fiodor Suietov) integrated: -
acpi_terminate() doesn't free debug memory allocation
list objects (BZ 355) - After Core Subsystem
shutdown, acpi_subsystem_status() returns AE_OK (BZ 356) -
acpi_os_unmap_memory() for RSDP can be invoked inconsistently
(BZ 357) - Resource Manager should return AE_TYPE for
non-device objects (BZ 358) - Incomplete cleanup branch
in AcpiNsEvaluateRelative (BZ 359) - Use acpi_os_free()
instead of ACPI_FREE in acpi_rs_set_srs_method_data (BZ 360)
- Incomplete cleanup branch in acpi_ps_parse_aml (BZ 361) -
Incomplete cleanup branch in acpi_ds_delete_walk_state (BZ 362)
- acpi_get_table_header returns AE_NO_ACPI_TABLES until DSDT
is loaded (BZ 365) - Status of the Global Initialization
Handler call not used (BZ 366) - Incorrect object parameter
to Global Initialization Handler (BZ 367)

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-06-14 02:44:35 -04:00

250 lines
7.3 KiB
C

/******************************************************************************
*
* Module Name: utinit - Common ACPI subsystem initialization
*
*****************************************************************************/
/*
* Copyright (C) 2000 - 2006, R. Byron Moore
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*/
#include <acpi/acpi.h>
#include <acpi/acnamesp.h>
#include <acpi/acevents.h>
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("utinit")
/* Local prototypes */
static void
acpi_ut_fadt_register_error(char *register_name, u32 value, u8 offset);
static void acpi_ut_terminate(void);
/*******************************************************************************
*
* FUNCTION: acpi_ut_fadt_register_error
*
* PARAMETERS: register_name - Pointer to string identifying register
* Value - Actual register contents value
* Offset - Byte offset in the FADT
*
* RETURN: AE_BAD_VALUE
*
* DESCRIPTION: Display failure message
*
******************************************************************************/
static void
acpi_ut_fadt_register_error(char *register_name, u32 value, u8 offset)
{
ACPI_WARNING((AE_INFO,
"Invalid FADT value %s=%X at offset %X FADT=%p",
register_name, value, offset, acpi_gbl_FADT));
}
/******************************************************************************
*
* FUNCTION: acpi_ut_validate_fadt
*
* PARAMETERS: None
*
* RETURN: Status
*
* DESCRIPTION: Validate various ACPI registers in the FADT
*
******************************************************************************/
acpi_status acpi_ut_validate_fadt(void)
{
/*
* Verify Fixed ACPI Description Table fields,
* but don't abort on any problems, just display error
*/
if (acpi_gbl_FADT->pm1_evt_len < 4) {
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) {
acpi_ut_fadt_register_error("PM1_CNT_LEN", 0,
ACPI_FADT_OFFSET(pm1_cnt_len));
}
if (!acpi_gbl_FADT->xpm1a_evt_blk.address) {
acpi_ut_fadt_register_error("X_PM1a_EVT_BLK", 0,
ACPI_FADT_OFFSET(xpm1a_evt_blk.
address));
}
if (!acpi_gbl_FADT->xpm1a_cnt_blk.address) {
acpi_ut_fadt_register_error("X_PM1a_CNT_BLK", 0,
ACPI_FADT_OFFSET(xpm1a_cnt_blk.
address));
}
if (!acpi_gbl_FADT->xpm_tmr_blk.address) {
acpi_ut_fadt_register_error("X_PM_TMR_BLK", 0,
ACPI_FADT_OFFSET(xpm_tmr_blk.
address));
}
if ((acpi_gbl_FADT->xpm2_cnt_blk.address &&
!acpi_gbl_FADT->pm2_cnt_len)) {
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) {
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_gbl_FADT->xgpe0_blk.address &&
(acpi_gbl_FADT->gpe0_blk_len & 1)) {
acpi_ut_fadt_register_error("(x)GPE0_BLK_LEN",
(u32) acpi_gbl_FADT->gpe0_blk_len,
ACPI_FADT_OFFSET(gpe0_blk_len));
}
if (acpi_gbl_FADT->xgpe1_blk.address &&
(acpi_gbl_FADT->gpe1_blk_len & 1)) {
acpi_ut_fadt_register_error("(x)GPE1_BLK_LEN",
(u32) acpi_gbl_FADT->gpe1_blk_len,
ACPI_FADT_OFFSET(gpe1_blk_len));
}
return (AE_OK);
}
/******************************************************************************
*
* FUNCTION: acpi_ut_terminate
*
* PARAMETERS: none
*
* RETURN: none
*
* DESCRIPTION: Free global memory
*
******************************************************************************/
static void acpi_ut_terminate(void)
{
struct acpi_gpe_block_info *gpe_block;
struct acpi_gpe_block_info *next_gpe_block;
struct acpi_gpe_xrupt_info *gpe_xrupt_info;
struct acpi_gpe_xrupt_info *next_gpe_xrupt_info;
ACPI_FUNCTION_TRACE(ut_terminate);
/* Free global tables, etc. */
/* Free global GPE blocks and related info structures */
gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head;
while (gpe_xrupt_info) {
gpe_block = gpe_xrupt_info->gpe_block_list_head;
while (gpe_block) {
next_gpe_block = gpe_block->next;
ACPI_FREE(gpe_block->event_info);
ACPI_FREE(gpe_block->register_info);
ACPI_FREE(gpe_block);
gpe_block = next_gpe_block;
}
next_gpe_xrupt_info = gpe_xrupt_info->next;
ACPI_FREE(gpe_xrupt_info);
gpe_xrupt_info = next_gpe_xrupt_info;
}
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.
*
******************************************************************************/
void acpi_ut_subsystem_shutdown(void)
{
ACPI_FUNCTION_TRACE(ut_subsystem_shutdown);
/* Just exit if subsystem is already shutdown */
if (acpi_gbl_shutdown) {
ACPI_ERROR((AE_INFO, "ACPI Subsystem is already terminated"));
return_VOID;
}
/* Subsystem appears active, go ahead and shut it down */
acpi_gbl_shutdown = TRUE;
acpi_gbl_startup_flags = 0;
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n"));
/* Close the acpi_event Handling */
acpi_ev_terminate();
/* Close the Namespace */
acpi_ns_terminate();
/* Close the globals */
acpi_ut_terminate();
/* Purge the local caches */
(void)acpi_ut_delete_caches();
return_VOID;
}