![Linus Torvalds](/assets/img/avatar_default.png)
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
357 lines
11 KiB
C
357 lines
11 KiB
C
/*******************************************************************************
|
|
*
|
|
* 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, "_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, "_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, "_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
|
|
* 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 ("_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);
|
|
}
|
|
|