| /******************************************************************************* |
| * |
| * Module Name: rsutils - Utilities for the resource manager |
| * |
| ******************************************************************************/ |
| |
| /* |
| * 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/acresrc.h> |
| |
| #define _COMPONENT ACPI_RESOURCES |
| ACPI_MODULE_NAME("rsutils") |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: acpi_rs_get_prt_method_data |
| * |
| * PARAMETERS: Handle - a handle to the containing object |
| * ret_buffer - a pointer to a buffer structure for the |
| * results |
| * |
| * RETURN: Status |
| * |
| * DESCRIPTION: This function is called to get the _PRT value of an object |
| * contained in an object specified by the handle passed in |
| * |
| * If the function fails an appropriate status will be returned |
| * and the contents of the callers buffer is undefined. |
| * |
| ******************************************************************************/ |
| acpi_status |
| acpi_rs_get_prt_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer) |
| { |
| union acpi_operand_object *obj_desc; |
| acpi_status status; |
| |
| ACPI_FUNCTION_TRACE("rs_get_prt_method_data"); |
| |
| /* Parameters guaranteed valid by caller */ |
| |
| /* Execute the method, no parameters */ |
| |
| status = acpi_ut_evaluate_object(handle, METHOD_NAME__PRT, |
| ACPI_BTYPE_PACKAGE, &obj_desc); |
| if (ACPI_FAILURE(status)) { |
| return_ACPI_STATUS(status); |
| } |
| |
| /* |
| * Create a resource linked list from the byte stream buffer that comes |
| * back from the _CRS method execution. |
| */ |
| status = acpi_rs_create_pci_routing_table(obj_desc, ret_buffer); |
| |
| /* On exit, we must delete the object returned by evaluate_object */ |
| |
| acpi_ut_remove_reference(obj_desc); |
| return_ACPI_STATUS(status); |
| } |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: acpi_rs_get_crs_method_data |
| * |
| * PARAMETERS: Handle - a handle to the containing object |
| * ret_buffer - a pointer to a buffer structure for the |
| * results |
| * |
| * RETURN: Status |
| * |
| * DESCRIPTION: This function is called to get the _CRS value of an object |
| * contained in an object specified by the handle passed in |
| * |
| * If the function fails an appropriate status will be returned |
| * and the contents of the callers buffer is undefined. |
| * |
| ******************************************************************************/ |
| |
| acpi_status |
| acpi_rs_get_crs_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer) |
| { |
| union acpi_operand_object *obj_desc; |
| acpi_status status; |
| |
| ACPI_FUNCTION_TRACE("rs_get_crs_method_data"); |
| |
| /* Parameters guaranteed valid by caller */ |
| |
| /* Execute the method, no parameters */ |
| |
| status = acpi_ut_evaluate_object(handle, METHOD_NAME__CRS, |
| ACPI_BTYPE_BUFFER, &obj_desc); |
| if (ACPI_FAILURE(status)) { |
| return_ACPI_STATUS(status); |
| } |
| |
| /* |
| * Make the call to create a resource linked list from the |
| * byte stream buffer that comes back from the _CRS method |
| * execution. |
| */ |
| status = acpi_rs_create_resource_list(obj_desc, ret_buffer); |
| |
| /* on exit, we must delete the object returned by evaluate_object */ |
| |
| acpi_ut_remove_reference(obj_desc); |
| return_ACPI_STATUS(status); |
| } |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: acpi_rs_get_prs_method_data |
| * |
| * PARAMETERS: Handle - a handle to the containing object |
| * ret_buffer - a pointer to a buffer structure for the |
| * results |
| * |
| * RETURN: Status |
| * |
| * DESCRIPTION: This function is called to get the _PRS value of an object |
| * contained in an object specified by the handle passed in |
| * |
| * If the function fails an appropriate status will be returned |
| * and the contents of the callers buffer is undefined. |
| * |
| ******************************************************************************/ |
| |
| #ifdef ACPI_FUTURE_USAGE |
| acpi_status |
| acpi_rs_get_prs_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer) |
| { |
| union acpi_operand_object *obj_desc; |
| acpi_status status; |
| |
| ACPI_FUNCTION_TRACE("rs_get_prs_method_data"); |
| |
| /* Parameters guaranteed valid by caller */ |
| |
| /* Execute the method, no parameters */ |
| |
| status = acpi_ut_evaluate_object(handle, METHOD_NAME__PRS, |
| ACPI_BTYPE_BUFFER, &obj_desc); |
| if (ACPI_FAILURE(status)) { |
| return_ACPI_STATUS(status); |
| } |
| |
| /* |
| * Make the call to create a resource linked list from the |
| * byte stream buffer that comes back from the _CRS method |
| * execution. |
| */ |
| status = acpi_rs_create_resource_list(obj_desc, ret_buffer); |
| |
| /* on exit, we must delete the object returned by evaluate_object */ |
| |
| acpi_ut_remove_reference(obj_desc); |
| return_ACPI_STATUS(status); |
| } |
| #endif /* ACPI_FUTURE_USAGE */ |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: acpi_rs_get_method_data |
| * |
| * PARAMETERS: Handle - a handle to the containing object |
| * Path - Path to method, relative to Handle |
| * ret_buffer - a pointer to a buffer structure for the |
| * results |
| * |
| * RETURN: Status |
| * |
| * DESCRIPTION: This function is called to get the _CRS or _PRS value of an |
| * object contained in an object specified by the handle passed in |
| * |
| * If the function fails an appropriate status will be returned |
| * and the contents of the callers buffer is undefined. |
| * |
| ******************************************************************************/ |
| |
| acpi_status |
| acpi_rs_get_method_data(acpi_handle handle, |
| char *path, struct acpi_buffer *ret_buffer) |
| { |
| union acpi_operand_object *obj_desc; |
| acpi_status status; |
| |
| ACPI_FUNCTION_TRACE("rs_get_method_data"); |
| |
| /* Parameters guaranteed valid by caller */ |
| |
| /* Execute the method, no parameters */ |
| |
| status = |
| acpi_ut_evaluate_object(handle, path, ACPI_BTYPE_BUFFER, &obj_desc); |
| if (ACPI_FAILURE(status)) { |
| return_ACPI_STATUS(status); |
| } |
| |
| /* |
| * Make the call to create a resource linked list from the |
| * byte stream buffer that comes back from the method |
| * execution. |
| */ |
| status = acpi_rs_create_resource_list(obj_desc, ret_buffer); |
| |
| /* On exit, we must delete the object returned by evaluate_object */ |
| |
| acpi_ut_remove_reference(obj_desc); |
| return_ACPI_STATUS(status); |
| } |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: acpi_rs_set_srs_method_data |
| * |
| * PARAMETERS: Handle - a handle to the containing object |
| * in_buffer - a pointer to a buffer structure of the |
| * parameter |
| * |
| * RETURN: Status |
| * |
| * DESCRIPTION: This function is called to set the _SRS of an object contained |
| * in an object specified by the handle passed in |
| * |
| * If the function fails an appropriate status will be returned |
| * and the contents of the callers buffer is undefined. |
| * |
| ******************************************************************************/ |
| |
| acpi_status |
| acpi_rs_set_srs_method_data(acpi_handle handle, struct acpi_buffer *in_buffer) |
| { |
| struct acpi_parameter_info info; |
| union acpi_operand_object *params[2]; |
| acpi_status status; |
| struct acpi_buffer buffer; |
| |
| ACPI_FUNCTION_TRACE("rs_set_srs_method_data"); |
| |
| /* Parameters guaranteed valid by caller */ |
| |
| /* |
| * The in_buffer parameter will point to a linked list of |
| * resource parameters. It needs to be formatted into a |
| * byte stream to be sent in as an input parameter to _SRS |
| * |
| * Convert the linked list into a byte stream |
| */ |
| buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; |
| status = acpi_rs_create_byte_stream(in_buffer->pointer, &buffer); |
| if (ACPI_FAILURE(status)) { |
| return_ACPI_STATUS(status); |
| } |
| |
| /* Init the param object */ |
| |
| params[0] = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER); |
| if (!params[0]) { |
| acpi_os_free(buffer.pointer); |
| return_ACPI_STATUS(AE_NO_MEMORY); |
| } |
| |
| /* Set up the parameter object */ |
| |
| params[0]->buffer.length = (u32) buffer.length; |
| params[0]->buffer.pointer = buffer.pointer; |
| params[0]->common.flags = AOPOBJ_DATA_VALID; |
| params[1] = NULL; |
| |
| info.node = handle; |
| info.parameters = params; |
| info.parameter_type = ACPI_PARAM_ARGS; |
| |
| /* Execute the method, no return value */ |
| |
| status = acpi_ns_evaluate_relative(METHOD_NAME__SRS, &info); |
| if (ACPI_SUCCESS(status)) { |
| /* Delete any return object (especially if implicit_return is enabled) */ |
| |
| if (info.return_object) { |
| acpi_ut_remove_reference(info.return_object); |
| } |
| } |
| |
| /* Clean up and return the status from acpi_ns_evaluate_relative */ |
| |
| acpi_ut_remove_reference(params[0]); |
| return_ACPI_STATUS(status); |
| } |