| /****************************************************************************** |
| * |
| * Module Name: utinit - Common ACPI subsystem initialization |
| * |
| *****************************************************************************/ |
| |
| /* |
| * Copyright (C) 2000 - 2005, 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, |
| acpi_size 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, |
| acpi_size offset) |
| { |
| |
| ACPI_REPORT_WARNING ( |
| ("Invalid FADT value %s=%X at offset %X FADT=%p\n", |
| register_name, value, (u32) 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_MEM_FREE (gpe_block->event_info); |
| ACPI_MEM_FREE (gpe_block->register_info); |
| ACPI_MEM_FREE (gpe_block); |
| |
| gpe_block = next_gpe_block; |
| } |
| next_gpe_xrupt_info = gpe_xrupt_info->next; |
| ACPI_MEM_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_DEBUG_PRINT ((ACPI_DB_ERROR, |
| "ACPI Subsystem is already terminated\n")); |
| return_VOID; |
| } |
| |
| /* 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 acpi_event Handling */ |
| |
| acpi_ev_terminate (); |
| |
| /* Close the Namespace */ |
| |
| acpi_ns_terminate (); |
| |
| /* Close the globals */ |
| |
| acpi_ut_terminate (); |
| |
| /* Purge the local caches */ |
| |
| (void) acpi_purge_cached_objects (); |
| |
| /* Debug only - display leftover memory allocation, if any */ |
| |
| #ifdef ACPI_DBG_TRACK_ALLOCATIONS |
| acpi_ut_dump_allocations (ACPI_UINT32_MAX, NULL); |
| #endif |
| |
| return_VOID; |
| } |
| |
| |