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/*******************************************************************************

 *

 * Module Name: rsutils - Utilities for the resource manager

 *

 ******************************************************************************/

/*

 * Copyright (C) 2000 - 2004, 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.

 *

 ******************************************************************************/

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);

}

/*******************************************************************************

 *

 * 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)

{

        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;

        /*

         * Execute the method, no return value

         */

        status = acpi_ns_evaluate_relative (handle, "_SRS", params, NULL);

        /*

         * Clean up and return the status from acpi_ns_evaluate_relative

         */

        acpi_ut_remove_reference (params[0]);

        return_ACPI_STATUS (status);

}