1/****************************************************************************** 2 * 3 * Module Name: utinit - Common ACPI subsystem initialization 4 * 5 *****************************************************************************/ 6 7/* 8 * Copyright (C) 2000 - 2007, R. Byron Moore 9 * All rights reserved. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions, and the following disclaimer, 16 * without modification. 17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 18 * substantially similar to the "NO WARRANTY" disclaimer below 19 * ("Disclaimer") and any redistribution must be conditioned upon 20 * including a substantially similar Disclaimer requirement for further 21 * binary redistribution. 22 * 3. Neither the names of the above-listed copyright holders nor the names 23 * of any contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * Alternatively, this software may be distributed under the terms of the 27 * GNU General Public License ("GPL") version 2 as published by the Free 28 * Software Foundation. 29 * 30 * NO WARRANTY 31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 41 * POSSIBILITY OF SUCH DAMAGES. 42 */ 43 44#include <acpi/acpi.h> 45#include <acpi/acnamesp.h> 46#include <acpi/acevents.h> 47#include <acpi/actables.h> 48 49#define _COMPONENT ACPI_UTILITIES 50ACPI_MODULE_NAME("utinit") 51 52/* Local prototypes */ 53static void acpi_ut_terminate(void); 54 55/****************************************************************************** 56 * 57 * FUNCTION: acpi_ut_terminate 58 * 59 * PARAMETERS: none 60 * 61 * RETURN: none 62 * 63 * DESCRIPTION: Free global memory 64 * 65 ******************************************************************************/ 66 67static void acpi_ut_terminate(void) 68{ 69 struct acpi_gpe_block_info *gpe_block; 70 struct acpi_gpe_block_info *next_gpe_block; 71 struct acpi_gpe_xrupt_info *gpe_xrupt_info; 72 struct acpi_gpe_xrupt_info *next_gpe_xrupt_info; 73 74 ACPI_FUNCTION_TRACE(ut_terminate); 75 76 /* Free global GPE blocks and related info structures */ 77 78 gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head; 79 while (gpe_xrupt_info) { 80 gpe_block = gpe_xrupt_info->gpe_block_list_head; 81 while (gpe_block) { 82 next_gpe_block = gpe_block->next; 83 ACPI_FREE(gpe_block->event_info); 84 ACPI_FREE(gpe_block->register_info); 85 ACPI_FREE(gpe_block); 86 87 gpe_block = next_gpe_block; 88 } 89 next_gpe_xrupt_info = gpe_xrupt_info->next; 90 ACPI_FREE(gpe_xrupt_info); 91 gpe_xrupt_info = next_gpe_xrupt_info; 92 } 93 94 return_VOID; 95} 96 97/******************************************************************************* 98 * 99 * FUNCTION: acpi_ut_subsystem_shutdown 100 * 101 * PARAMETERS: none 102 * 103 * RETURN: none 104 * 105 * DESCRIPTION: Shutdown the various subsystems. Don't delete the mutex 106 * objects here -- because the AML debugger may be still running. 107 * 108 ******************************************************************************/ 109 110void acpi_ut_subsystem_shutdown(void) 111{ 112 113 ACPI_FUNCTION_TRACE(ut_subsystem_shutdown); 114 115 /* Just exit if subsystem is already shutdown */ 116 117 if (acpi_gbl_shutdown) { 118 ACPI_ERROR((AE_INFO, "ACPI Subsystem is already terminated")); 119 return_VOID; 120 } 121 122 /* Subsystem appears active, go ahead and shut it down */ 123 124 acpi_gbl_shutdown = TRUE; 125 acpi_gbl_startup_flags = 0; 126 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n")); 127 128 /* Close the acpi_event Handling */ 129 130 acpi_ev_terminate(); 131 132 /* Close the Namespace */ 133 134 acpi_ns_terminate(); 135 136 /* Delete the ACPI tables */ 137 138 acpi_tb_terminate(); 139 140 /* Close the globals */ 141 142 acpi_ut_terminate(); 143 144 /* Purge the local caches */ 145 146 (void)acpi_ut_delete_caches(); 147 return_VOID; 148} 149