forked from luck/tmp_suning_uos_patched
739dcbb90a
This is a cosmetic patch only. Comparison of the resulting binary showed only line number differences. This patch does not affect the generation of the Linux binary. This patch decreases 389 lines of 20121018 divergence.diff. This patch reduces source code diff caused by the simple code maintenance work: 1. Deletion of the unused include files. 2. Deletion of the deprecated codes blocks. 3. Repositioning of the code blocks. 4. Replacing the values with the well defined macros. 5. Replacing the types with the equivalent types. Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
505 lines
15 KiB
C
505 lines
15 KiB
C
/******************************************************************************
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*
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* Module Name: utxface - External interfaces, miscellaneous utility functions
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*
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*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2012, Intel Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*/
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#include <linux/export.h>
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#include <acpi/acpi.h>
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#include "accommon.h"
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#include "acdebug.h"
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#define _COMPONENT ACPI_UTILITIES
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ACPI_MODULE_NAME("utxface")
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/*******************************************************************************
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*
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* FUNCTION: acpi_terminate
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*
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* PARAMETERS: None
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*
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* RETURN: Status
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*
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* DESCRIPTION: Shutdown the ACPICA subsystem and release all resources.
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*
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******************************************************************************/
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acpi_status acpi_terminate(void)
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{
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acpi_status status;
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ACPI_FUNCTION_TRACE(acpi_terminate);
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/* Just exit if subsystem is already shutdown */
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if (acpi_gbl_shutdown) {
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ACPI_ERROR((AE_INFO, "ACPI Subsystem is already terminated"));
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return_ACPI_STATUS(AE_OK);
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}
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/* Subsystem appears active, go ahead and shut it down */
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acpi_gbl_shutdown = TRUE;
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acpi_gbl_startup_flags = 0;
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ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n"));
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/* Terminate the AML Debugger if present */
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ACPI_DEBUGGER_EXEC(acpi_gbl_db_terminate_threads = TRUE);
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/* Shutdown and free all resources */
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acpi_ut_subsystem_shutdown();
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/* Free the mutex objects */
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acpi_ut_mutex_terminate();
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#ifdef ACPI_DEBUGGER
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/* Shut down the debugger */
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acpi_db_terminate();
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#endif
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/* Now we can shutdown the OS-dependent layer */
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status = acpi_os_terminate();
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return_ACPI_STATUS(status);
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}
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ACPI_EXPORT_SYMBOL(acpi_terminate)
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#ifndef ACPI_ASL_COMPILER
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#ifdef ACPI_FUTURE_USAGE
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/*******************************************************************************
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*
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* FUNCTION: acpi_subsystem_status
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*
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* PARAMETERS: None
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*
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* RETURN: Status of the ACPI subsystem
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*
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* DESCRIPTION: Other drivers that use the ACPI subsystem should call this
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* before making any other calls, to ensure the subsystem
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* initialized successfully.
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*
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******************************************************************************/
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acpi_status acpi_subsystem_status(void)
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{
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if (acpi_gbl_startup_flags & ACPI_INITIALIZED_OK) {
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return (AE_OK);
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} else {
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return (AE_ERROR);
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}
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}
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ACPI_EXPORT_SYMBOL(acpi_subsystem_status)
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/*******************************************************************************
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*
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* FUNCTION: acpi_get_system_info
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*
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* PARAMETERS: out_buffer - A buffer to receive the resources for the
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* device
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*
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* RETURN: status - the status of the call
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*
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* DESCRIPTION: This function is called to get information about the current
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* state of the ACPI subsystem. It will return system information
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* in the out_buffer.
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*
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* If the function fails an appropriate status will be returned
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* and the value of out_buffer is undefined.
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*
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******************************************************************************/
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acpi_status acpi_get_system_info(struct acpi_buffer * out_buffer)
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{
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struct acpi_system_info *info_ptr;
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acpi_status status;
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ACPI_FUNCTION_TRACE(acpi_get_system_info);
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/* Parameter validation */
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status = acpi_ut_validate_buffer(out_buffer);
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if (ACPI_FAILURE(status)) {
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return_ACPI_STATUS(status);
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}
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/* Validate/Allocate/Clear caller buffer */
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status =
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acpi_ut_initialize_buffer(out_buffer,
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sizeof(struct acpi_system_info));
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if (ACPI_FAILURE(status)) {
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return_ACPI_STATUS(status);
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}
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/*
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* Populate the return buffer
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*/
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info_ptr = (struct acpi_system_info *)out_buffer->pointer;
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info_ptr->acpi_ca_version = ACPI_CA_VERSION;
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/* System flags (ACPI capabilities) */
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info_ptr->flags = ACPI_SYS_MODE_ACPI;
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/* Timer resolution - 24 or 32 bits */
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if (acpi_gbl_FADT.flags & ACPI_FADT_32BIT_TIMER) {
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info_ptr->timer_resolution = 24;
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} else {
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info_ptr->timer_resolution = 32;
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}
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/* Clear the reserved fields */
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info_ptr->reserved1 = 0;
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info_ptr->reserved2 = 0;
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/* Current debug levels */
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info_ptr->debug_layer = acpi_dbg_layer;
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info_ptr->debug_level = acpi_dbg_level;
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return_ACPI_STATUS(AE_OK);
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}
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ACPI_EXPORT_SYMBOL(acpi_get_system_info)
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/*****************************************************************************
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*
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* FUNCTION: acpi_install_initialization_handler
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*
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* PARAMETERS: handler - Callback procedure
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* function - Not (currently) used, see below
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*
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* RETURN: Status
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*
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* DESCRIPTION: Install an initialization handler
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*
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* TBD: When a second function is added, must save the Function also.
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*
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****************************************************************************/
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acpi_status
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acpi_install_initialization_handler(acpi_init_handler handler, u32 function)
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{
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if (!handler) {
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return (AE_BAD_PARAMETER);
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}
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if (acpi_gbl_init_handler) {
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return (AE_ALREADY_EXISTS);
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}
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acpi_gbl_init_handler = handler;
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return (AE_OK);
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}
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ACPI_EXPORT_SYMBOL(acpi_install_initialization_handler)
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#endif /* ACPI_FUTURE_USAGE */
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/*****************************************************************************
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*
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* FUNCTION: acpi_purge_cached_objects
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*
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* PARAMETERS: None
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*
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* RETURN: Status
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*
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* DESCRIPTION: Empty all caches (delete the cached objects)
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*
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****************************************************************************/
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acpi_status acpi_purge_cached_objects(void)
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{
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ACPI_FUNCTION_TRACE(acpi_purge_cached_objects);
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(void)acpi_os_purge_cache(acpi_gbl_state_cache);
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(void)acpi_os_purge_cache(acpi_gbl_operand_cache);
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(void)acpi_os_purge_cache(acpi_gbl_ps_node_cache);
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(void)acpi_os_purge_cache(acpi_gbl_ps_node_ext_cache);
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return_ACPI_STATUS(AE_OK);
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}
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ACPI_EXPORT_SYMBOL(acpi_purge_cached_objects)
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/*****************************************************************************
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*
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* FUNCTION: acpi_install_interface
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*
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* PARAMETERS: interface_name - The interface to install
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*
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* RETURN: Status
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*
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* DESCRIPTION: Install an _OSI interface to the global list
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*
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****************************************************************************/
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acpi_status acpi_install_interface(acpi_string interface_name)
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{
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acpi_status status;
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struct acpi_interface_info *interface_info;
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/* Parameter validation */
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if (!interface_name || (ACPI_STRLEN(interface_name) == 0)) {
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return (AE_BAD_PARAMETER);
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}
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(void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
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/* Check if the interface name is already in the global list */
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interface_info = acpi_ut_get_interface(interface_name);
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if (interface_info) {
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/*
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* The interface already exists in the list. This is OK if the
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* interface has been marked invalid -- just clear the bit.
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*/
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if (interface_info->flags & ACPI_OSI_INVALID) {
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interface_info->flags &= ~ACPI_OSI_INVALID;
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status = AE_OK;
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} else {
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status = AE_ALREADY_EXISTS;
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}
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} else {
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/* New interface name, install into the global list */
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status = acpi_ut_install_interface(interface_name);
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}
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acpi_os_release_mutex(acpi_gbl_osi_mutex);
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return (status);
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}
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ACPI_EXPORT_SYMBOL(acpi_install_interface)
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/*****************************************************************************
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*
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* FUNCTION: acpi_remove_interface
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*
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* PARAMETERS: interface_name - The interface to remove
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*
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* RETURN: Status
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*
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* DESCRIPTION: Remove an _OSI interface from the global list
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*
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****************************************************************************/
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acpi_status acpi_remove_interface(acpi_string interface_name)
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{
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acpi_status status;
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/* Parameter validation */
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if (!interface_name || (ACPI_STRLEN(interface_name) == 0)) {
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return (AE_BAD_PARAMETER);
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}
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(void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
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status = acpi_ut_remove_interface(interface_name);
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acpi_os_release_mutex(acpi_gbl_osi_mutex);
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return (status);
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}
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ACPI_EXPORT_SYMBOL(acpi_remove_interface)
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/*****************************************************************************
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*
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* FUNCTION: acpi_install_interface_handler
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*
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* PARAMETERS: handler - The _OSI interface handler to install
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* NULL means "remove existing handler"
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*
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* RETURN: Status
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*
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* DESCRIPTION: Install a handler for the predefined _OSI ACPI method.
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* invoked during execution of the internal implementation of
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* _OSI. A NULL handler simply removes any existing handler.
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*
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****************************************************************************/
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acpi_status acpi_install_interface_handler(acpi_interface_handler handler)
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{
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acpi_status status = AE_OK;
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(void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
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if (handler && acpi_gbl_interface_handler) {
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status = AE_ALREADY_EXISTS;
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} else {
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acpi_gbl_interface_handler = handler;
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}
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acpi_os_release_mutex(acpi_gbl_osi_mutex);
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return (status);
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}
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ACPI_EXPORT_SYMBOL(acpi_install_interface_handler)
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/*****************************************************************************
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*
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* FUNCTION: acpi_check_address_range
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*
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* PARAMETERS: space_id - Address space ID
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* address - Start address
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* length - Length
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* warn - TRUE if warning on overlap desired
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*
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* RETURN: Count of the number of conflicts detected.
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*
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* DESCRIPTION: Check if the input address range overlaps any of the
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* ASL operation region address ranges.
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*
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****************************************************************************/
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u32
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acpi_check_address_range(acpi_adr_space_type space_id,
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acpi_physical_address address,
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acpi_size length, u8 warn)
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{
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u32 overlaps;
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acpi_status status;
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status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
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if (ACPI_FAILURE(status)) {
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return (0);
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}
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overlaps = acpi_ut_check_address_range(space_id, address,
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(u32)length, warn);
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(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
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return (overlaps);
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}
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ACPI_EXPORT_SYMBOL(acpi_check_address_range)
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#endif /* !ACPI_ASL_COMPILER */
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/*******************************************************************************
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*
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* FUNCTION: acpi_decode_pld_buffer
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*
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* PARAMETERS: in_buffer - Buffer returned by _PLD method
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* length - Length of the in_buffer
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* return_buffer - Where the decode buffer is returned
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*
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* RETURN: Status and the decoded _PLD buffer. User must deallocate
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* the buffer via ACPI_FREE.
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*
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* DESCRIPTION: Decode the bit-packed buffer returned by the _PLD method into
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* a local struct that is much more useful to an ACPI driver.
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*
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******************************************************************************/
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acpi_status
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acpi_decode_pld_buffer(u8 *in_buffer,
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acpi_size length, struct acpi_pld_info ** return_buffer)
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{
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struct acpi_pld_info *pld_info;
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u32 *buffer = ACPI_CAST_PTR(u32, in_buffer);
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u32 dword;
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/* Parameter validation */
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if (!in_buffer || !return_buffer || (length < 16)) {
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return (AE_BAD_PARAMETER);
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}
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pld_info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_pld_info));
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if (!pld_info) {
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return (AE_NO_MEMORY);
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}
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/* First 32-bit DWord */
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ACPI_MOVE_32_TO_32(&dword, &buffer[0]);
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pld_info->revision = ACPI_PLD_GET_REVISION(&dword);
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pld_info->ignore_color = ACPI_PLD_GET_IGNORE_COLOR(&dword);
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pld_info->color = ACPI_PLD_GET_COLOR(&dword);
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/* Second 32-bit DWord */
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ACPI_MOVE_32_TO_32(&dword, &buffer[1]);
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pld_info->width = ACPI_PLD_GET_WIDTH(&dword);
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pld_info->height = ACPI_PLD_GET_HEIGHT(&dword);
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/* Third 32-bit DWord */
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ACPI_MOVE_32_TO_32(&dword, &buffer[2]);
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pld_info->user_visible = ACPI_PLD_GET_USER_VISIBLE(&dword);
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pld_info->dock = ACPI_PLD_GET_DOCK(&dword);
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pld_info->lid = ACPI_PLD_GET_LID(&dword);
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pld_info->panel = ACPI_PLD_GET_PANEL(&dword);
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pld_info->vertical_position = ACPI_PLD_GET_VERTICAL(&dword);
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pld_info->horizontal_position = ACPI_PLD_GET_HORIZONTAL(&dword);
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pld_info->shape = ACPI_PLD_GET_SHAPE(&dword);
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pld_info->group_orientation = ACPI_PLD_GET_ORIENTATION(&dword);
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pld_info->group_token = ACPI_PLD_GET_TOKEN(&dword);
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pld_info->group_position = ACPI_PLD_GET_POSITION(&dword);
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pld_info->bay = ACPI_PLD_GET_BAY(&dword);
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/* Fourth 32-bit DWord */
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ACPI_MOVE_32_TO_32(&dword, &buffer[3]);
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pld_info->ejectable = ACPI_PLD_GET_EJECTABLE(&dword);
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pld_info->ospm_eject_required = ACPI_PLD_GET_OSPM_EJECT(&dword);
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pld_info->cabinet_number = ACPI_PLD_GET_CABINET(&dword);
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pld_info->card_cage_number = ACPI_PLD_GET_CARD_CAGE(&dword);
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pld_info->reference = ACPI_PLD_GET_REFERENCE(&dword);
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pld_info->rotation = ACPI_PLD_GET_ROTATION(&dword);
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pld_info->order = ACPI_PLD_GET_ORDER(&dword);
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if (length >= ACPI_PLD_BUFFER_SIZE) {
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/* Fifth 32-bit DWord (Revision 2 of _PLD) */
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ACPI_MOVE_32_TO_32(&dword, &buffer[4]);
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pld_info->vertical_offset = ACPI_PLD_GET_VERT_OFFSET(&dword);
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pld_info->horizontal_offset = ACPI_PLD_GET_HORIZ_OFFSET(&dword);
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}
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*return_buffer = pld_info;
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return (AE_OK);
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}
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ACPI_EXPORT_SYMBOL(acpi_decode_pld_buffer)
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