2005-04-17 06:20:36 +08:00
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/******************************************************************************
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*
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* Module Name: nsinit - namespace initialization
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*
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*****************************************************************************/
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/*
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2006-01-14 05:22:00 +08:00
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* Copyright (C) 2000 - 2006, R. Byron Moore
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2005-04-17 06:20:36 +08:00
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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 <acpi/acpi.h>
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#include <acpi/acnamesp.h>
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#include <acpi/acdispat.h>
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#include <acpi/acinterp.h>
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#define _COMPONENT ACPI_NAMESPACE
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2005-08-05 12:44:28 +08:00
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ACPI_MODULE_NAME("nsinit")
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2005-04-17 06:20:36 +08:00
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2005-04-19 10:49:35 +08:00
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/* Local prototypes */
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static acpi_status
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2005-08-05 12:44:28 +08:00
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acpi_ns_init_one_object(acpi_handle obj_handle,
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u32 level, void *context, void **return_value);
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2005-04-19 10:49:35 +08:00
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static acpi_status
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2005-08-05 12:44:28 +08:00
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acpi_ns_init_one_device(acpi_handle obj_handle,
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u32 nesting_level, void *context, void **return_value);
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2005-04-17 06:20:36 +08:00
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/*******************************************************************************
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*
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* FUNCTION: acpi_ns_initialize_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: Walk the entire namespace and perform any necessary
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* initialization on the objects found therein
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*
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******************************************************************************/
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2005-08-05 12:44:28 +08:00
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acpi_status acpi_ns_initialize_objects(void)
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2005-04-17 06:20:36 +08:00
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{
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2005-08-05 12:44:28 +08:00
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acpi_status status;
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struct acpi_init_walk_info info;
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2005-04-17 06:20:36 +08:00
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2005-08-05 12:44:28 +08:00
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ACPI_FUNCTION_TRACE("ns_initialize_objects");
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2005-04-17 06:20:36 +08:00
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2005-08-05 12:44:28 +08:00
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ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
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"**** Starting initialization of namespace objects ****\n"));
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ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
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"Completing Region/Field/Buffer/Package initialization:"));
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2005-04-17 06:20:36 +08:00
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/* Set all init info to zero */
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2005-08-05 12:44:28 +08:00
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ACPI_MEMSET(&info, 0, sizeof(struct acpi_init_walk_info));
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2005-04-17 06:20:36 +08:00
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/* Walk entire namespace from the supplied root */
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2005-08-05 12:44:28 +08:00
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status = acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
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ACPI_UINT32_MAX, acpi_ns_init_one_object,
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&info, NULL);
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if (ACPI_FAILURE(status)) {
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2006-01-28 05:43:00 +08:00
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ACPI_EXCEPTION((AE_INFO, status, "During walk_namespace"));
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2005-04-17 06:20:36 +08:00
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}
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2005-08-05 12:44:28 +08:00
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ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
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"\nInitialized %hd/%hd Regions %hd/%hd Fields %hd/%hd Buffers %hd/%hd Packages (%hd nodes)\n",
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info.op_region_init, info.op_region_count,
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info.field_init, info.field_count,
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info.buffer_init, info.buffer_count,
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info.package_init, info.package_count,
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info.object_count));
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2005-04-17 06:20:36 +08:00
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2005-08-05 12:44:28 +08:00
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ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
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"%hd Control Methods found\n", info.method_count));
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ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
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"%hd Op Regions found\n", info.op_region_count));
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2005-04-17 06:20:36 +08:00
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2005-08-05 12:44:28 +08:00
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return_ACPI_STATUS(AE_OK);
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2005-04-17 06:20:36 +08:00
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ns_initialize_devices
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*
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* PARAMETERS: None
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*
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* RETURN: acpi_status
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*
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* DESCRIPTION: Walk the entire namespace and initialize all ACPI devices.
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* This means running _INI on all present devices.
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*
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* Note: We install PCI config space handler on region access,
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* not here.
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*
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******************************************************************************/
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2005-08-05 12:44:28 +08:00
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acpi_status acpi_ns_initialize_devices(void)
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2005-04-17 06:20:36 +08:00
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{
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2005-08-05 12:44:28 +08:00
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acpi_status status;
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struct acpi_device_walk_info info;
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2005-04-17 06:20:36 +08:00
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2005-08-05 12:44:28 +08:00
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ACPI_FUNCTION_TRACE("ns_initialize_devices");
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2005-04-17 06:20:36 +08:00
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/* Init counters */
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info.device_count = 0;
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info.num_STA = 0;
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info.num_INI = 0;
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2005-08-05 12:44:28 +08:00
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ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
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"Executing all Device _STA and_INI methods:"));
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2005-04-17 06:20:36 +08:00
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2005-08-05 12:44:28 +08:00
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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_ACPI_STATUS(status);
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2005-04-17 06:20:36 +08:00
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}
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/* Walk namespace for all objects */
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2005-08-05 12:44:28 +08:00
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status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
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ACPI_UINT32_MAX, TRUE,
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acpi_ns_init_one_device, &info, NULL);
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2005-04-17 06:20:36 +08:00
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2005-08-05 12:44:28 +08:00
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(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
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2005-04-17 06:20:36 +08:00
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2005-08-05 12:44:28 +08:00
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if (ACPI_FAILURE(status)) {
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2006-01-28 05:43:00 +08:00
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ACPI_EXCEPTION((AE_INFO, status, "During walk_namespace"));
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2005-04-17 06:20:36 +08:00
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}
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2005-08-05 12:44:28 +08:00
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ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
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2006-01-28 05:43:00 +08:00
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"\n%hd Devices found - executed %hd _STA, %hd _INI methods\n",
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2005-08-05 12:44:28 +08:00
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info.device_count, info.num_STA, info.num_INI));
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2005-04-17 06:20:36 +08:00
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2005-08-05 12:44:28 +08:00
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return_ACPI_STATUS(status);
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2005-04-17 06:20:36 +08:00
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ns_init_one_object
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*
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* PARAMETERS: obj_handle - Node
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* Level - Current nesting level
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* Context - Points to a init info struct
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* return_value - Not used
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*
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* RETURN: Status
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*
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* DESCRIPTION: Callback from acpi_walk_namespace. Invoked for every object
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* within the namespace.
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*
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* Currently, the only objects that require initialization are:
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* 1) Methods
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* 2) Op Regions
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*
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******************************************************************************/
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2005-04-19 10:49:35 +08:00
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static acpi_status
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2005-08-05 12:44:28 +08:00
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acpi_ns_init_one_object(acpi_handle obj_handle,
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u32 level, void *context, void **return_value)
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2005-04-17 06:20:36 +08:00
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{
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2005-08-05 12:44:28 +08:00
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acpi_object_type type;
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acpi_status status;
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struct acpi_init_walk_info *info =
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(struct acpi_init_walk_info *)context;
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struct acpi_namespace_node *node =
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(struct acpi_namespace_node *)obj_handle;
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union acpi_operand_object *obj_desc;
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2005-04-17 06:20:36 +08:00
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2005-08-05 12:44:28 +08:00
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ACPI_FUNCTION_NAME("ns_init_one_object");
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2005-04-17 06:20:36 +08:00
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info->object_count++;
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/* And even then, we are only interested in a few object types */
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2005-08-05 12:44:28 +08:00
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type = acpi_ns_get_type(obj_handle);
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obj_desc = acpi_ns_get_attached_object(node);
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2005-04-17 06:20:36 +08:00
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if (!obj_desc) {
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return (AE_OK);
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}
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/* Increment counters for object types we are looking for */
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switch (type) {
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case ACPI_TYPE_REGION:
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info->op_region_count++;
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break;
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case ACPI_TYPE_BUFFER_FIELD:
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info->field_count++;
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break;
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case ACPI_TYPE_BUFFER:
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info->buffer_count++;
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break;
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case ACPI_TYPE_PACKAGE:
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info->package_count++;
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break;
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default:
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/* No init required, just exit now */
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return (AE_OK);
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}
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/*
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* If the object is already initialized, nothing else to do
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*/
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if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
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return (AE_OK);
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}
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/*
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* Must lock the interpreter before executing AML code
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*/
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2005-08-05 12:44:28 +08:00
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status = acpi_ex_enter_interpreter();
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if (ACPI_FAILURE(status)) {
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2005-04-17 06:20:36 +08:00
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return (status);
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}
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/*
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* Each of these types can contain executable AML code within the
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* declaration.
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*/
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switch (type) {
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case ACPI_TYPE_REGION:
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info->op_region_init++;
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2005-08-05 12:44:28 +08:00
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status = acpi_ds_get_region_arguments(obj_desc);
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2005-04-17 06:20:36 +08:00
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break;
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case ACPI_TYPE_BUFFER_FIELD:
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info->field_init++;
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2005-08-05 12:44:28 +08:00
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status = acpi_ds_get_buffer_field_arguments(obj_desc);
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2005-04-17 06:20:36 +08:00
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break;
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case ACPI_TYPE_BUFFER:
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info->buffer_init++;
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2005-08-05 12:44:28 +08:00
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status = acpi_ds_get_buffer_arguments(obj_desc);
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2005-04-17 06:20:36 +08:00
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break;
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case ACPI_TYPE_PACKAGE:
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info->package_init++;
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2005-08-05 12:44:28 +08:00
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status = acpi_ds_get_package_arguments(obj_desc);
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2005-04-17 06:20:36 +08:00
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break;
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default:
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/* No other types can get here */
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break;
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}
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2005-08-05 12:44:28 +08:00
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if (ACPI_FAILURE(status)) {
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2006-01-28 05:43:00 +08:00
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ACPI_EXCEPTION((AE_INFO, status,
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"Could not execute arguments for [%4.4s] (%s)",
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acpi_ut_get_node_name(node),
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acpi_ut_get_type_name(type)));
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2005-04-17 06:20:36 +08:00
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}
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/*
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* Print a dot for each object unless we are going to print the entire
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* pathname
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*/
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if (!(acpi_dbg_level & ACPI_LV_INIT_NAMES)) {
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2005-08-05 12:44:28 +08:00
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ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "."));
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2005-04-17 06:20:36 +08:00
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}
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/*
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* We ignore errors from above, and always return OK, since we don't want
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* to abort the walk on any single error.
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*/
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2005-08-05 12:44:28 +08:00
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acpi_ex_exit_interpreter();
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2005-04-17 06:20:36 +08:00
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return (AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ns_init_one_device
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*
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* PARAMETERS: acpi_walk_callback
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*
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* RETURN: acpi_status
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*
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* DESCRIPTION: This is called once per device soon after ACPI is enabled
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* to initialize each device. It determines if the device is
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* present, and if so, calls _INI.
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*
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******************************************************************************/
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|
2005-04-19 10:49:35 +08:00
|
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static acpi_status
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2005-08-05 12:44:28 +08:00
|
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acpi_ns_init_one_device(acpi_handle obj_handle,
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|
u32 nesting_level, void *context, void **return_value)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2005-08-05 12:44:28 +08:00
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struct acpi_device_walk_info *info =
|
|
|
|
(struct acpi_device_walk_info *)context;
|
|
|
|
struct acpi_parameter_info pinfo;
|
|
|
|
u32 flags;
|
|
|
|
acpi_status status;
|
2005-12-17 06:05:00 +08:00
|
|
|
struct acpi_namespace_node *ini_node;
|
|
|
|
struct acpi_namespace_node *device_node;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-08-05 12:44:28 +08:00
|
|
|
ACPI_FUNCTION_TRACE("ns_init_one_device");
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-12-17 06:05:00 +08:00
|
|
|
device_node = acpi_ns_map_handle_to_node(obj_handle);
|
|
|
|
if (!device_node) {
|
2005-08-05 12:44:28 +08:00
|
|
|
return_ACPI_STATUS(AE_BAD_PARAMETER);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* We will run _STA/_INI on Devices, Processors and thermal_zones only
|
|
|
|
*/
|
2005-12-17 06:05:00 +08:00
|
|
|
if ((device_node->type != ACPI_TYPE_DEVICE) &&
|
|
|
|
(device_node->type != ACPI_TYPE_PROCESSOR) &&
|
|
|
|
(device_node->type != ACPI_TYPE_THERMAL)) {
|
2005-08-05 12:44:28 +08:00
|
|
|
return_ACPI_STATUS(AE_OK);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
if ((acpi_dbg_level <= ACPI_LV_ALL_EXCEPTIONS) &&
|
2005-08-05 12:44:28 +08:00
|
|
|
(!(acpi_dbg_level & ACPI_LV_INFO))) {
|
|
|
|
ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "."));
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
info->device_count++;
|
|
|
|
|
|
|
|
/*
|
2005-12-17 06:05:00 +08:00
|
|
|
* Check if the _INI method exists for this device -
|
|
|
|
* if _INI does not exist, there is no need to run _STA
|
|
|
|
* No _INI means device requires no initialization
|
|
|
|
*/
|
|
|
|
status = acpi_ns_search_node(*ACPI_CAST_PTR(u32, METHOD_NAME__INI),
|
|
|
|
device_node, ACPI_TYPE_METHOD, &ini_node);
|
|
|
|
if (ACPI_FAILURE(status)) {
|
2006-10-02 12:00:00 +08:00
|
|
|
|
2005-12-17 06:05:00 +08:00
|
|
|
/* No _INI method found - move on to next device */
|
|
|
|
|
|
|
|
return_ACPI_STATUS(AE_OK);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Run _STA to determine if we can run _INI on the device -
|
|
|
|
* the device must be present before _INI can be run.
|
|
|
|
* However, _STA is not required - assume device present if no _STA
|
2005-04-17 06:20:36 +08:00
|
|
|
*/
|
2005-08-05 12:44:28 +08:00
|
|
|
ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname(ACPI_TYPE_METHOD,
|
2005-12-17 06:05:00 +08:00
|
|
|
device_node,
|
2005-08-05 12:44:28 +08:00
|
|
|
METHOD_NAME__STA));
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-12-17 06:05:00 +08:00
|
|
|
pinfo.node = device_node;
|
|
|
|
pinfo.parameters = NULL;
|
|
|
|
pinfo.parameter_type = ACPI_PARAM_ARGS;
|
|
|
|
|
|
|
|
status = acpi_ut_execute_STA(pinfo.node, &flags);
|
2005-08-05 12:44:28 +08:00
|
|
|
if (ACPI_FAILURE(status)) {
|
2006-10-02 12:00:00 +08:00
|
|
|
|
2005-12-17 06:05:00 +08:00
|
|
|
/* Ignore error and move on to next device */
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-12-17 06:05:00 +08:00
|
|
|
return_ACPI_STATUS(AE_OK);
|
|
|
|
}
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-12-17 06:05:00 +08:00
|
|
|
if (flags != ACPI_UINT32_MAX) {
|
2005-04-17 06:20:36 +08:00
|
|
|
info->num_STA++;
|
2005-12-17 06:05:00 +08:00
|
|
|
}
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-12-17 06:05:00 +08:00
|
|
|
if (!(flags & ACPI_STA_DEVICE_PRESENT)) {
|
2006-10-02 12:00:00 +08:00
|
|
|
|
2005-12-17 06:05:00 +08:00
|
|
|
/* Don't look at children of a not present device */
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-12-17 06:05:00 +08:00
|
|
|
return_ACPI_STATUS(AE_CTRL_DEPTH);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
2005-12-17 06:05:00 +08:00
|
|
|
* The device is present and _INI exists. Run the _INI method.
|
|
|
|
* (We already have the _INI node from above)
|
2005-04-17 06:20:36 +08:00
|
|
|
*/
|
2005-08-05 12:44:28 +08:00
|
|
|
ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname(ACPI_TYPE_METHOD,
|
|
|
|
pinfo.node,
|
|
|
|
METHOD_NAME__INI));
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-12-17 06:05:00 +08:00
|
|
|
pinfo.node = ini_node;
|
|
|
|
status = acpi_ns_evaluate_by_handle(&pinfo);
|
|
|
|
if (ACPI_FAILURE(status)) {
|
2006-10-02 12:00:00 +08:00
|
|
|
|
2005-12-17 06:05:00 +08:00
|
|
|
/* Ignore error and move on to next device */
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
#ifdef ACPI_DEBUG_OUTPUT
|
2005-12-17 06:05:00 +08:00
|
|
|
char *scope_name = acpi_ns_get_external_pathname(ini_node);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2006-01-28 05:43:00 +08:00
|
|
|
ACPI_WARNING((AE_INFO, "%s._INI failed: %s",
|
|
|
|
scope_name, acpi_format_exception(status)));
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-12-17 06:05:00 +08:00
|
|
|
ACPI_MEM_FREE(scope_name);
|
2005-04-17 06:20:36 +08:00
|
|
|
#endif
|
2005-08-05 12:44:28 +08:00
|
|
|
} else {
|
2005-04-17 06:20:36 +08:00
|
|
|
/* Delete any return object (especially if implicit_return is enabled) */
|
|
|
|
|
|
|
|
if (pinfo.return_object) {
|
2005-08-05 12:44:28 +08:00
|
|
|
acpi_ut_remove_reference(pinfo.return_object);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Count of successful INIs */
|
|
|
|
|
|
|
|
info->num_INI++;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (acpi_gbl_init_handler) {
|
2006-10-02 12:00:00 +08:00
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
/* External initialization handler is present, call it */
|
|
|
|
|
2005-08-05 12:44:28 +08:00
|
|
|
status =
|
|
|
|
acpi_gbl_init_handler(pinfo.node, ACPI_INIT_DEVICE_INI);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2005-12-17 06:05:00 +08:00
|
|
|
return_ACPI_STATUS(AE_OK);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|