Commit a91cdde2 authored by Bob Moore's avatar Bob Moore Committed by Len Brown
Browse files

ACPI 5.0: New interface, acpi_get_event_resources 



Executes _AEI and formats the result, similar to acpi_get_current_resources, etc.

Signed-off-by: default avatarBob Moore <robert.moore@intel.com>
Signed-off-by: default avatarLin Ming <ming.m.lin@intel.com>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent e0fe0a8d

drivers/acpi/acpica/acresrc.h

+4 −0
Original line number Diff line number Diff line
@@ -215,6 +215,10 @@ acpi_status 
acpi_rs_set_srs_method_data(struct acpi_namespace_node *node,

			    struct acpi_buffer *ret_buffer);



acpi_status

acpi_rs_get_aei_method_data(struct acpi_namespace_node *node,

			    struct acpi_buffer *ret_buffer);



/*

 * rscalc

 */

drivers/acpi/acpica/rsutils.c

+50 −0
Original line number Diff line number Diff line
@@ -592,6 +592,56 @@ acpi_rs_get_prs_method_data(struct acpi_namespace_node *node, 
}

#endif				/*  ACPI_FUTURE_USAGE  */



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

 *

 * FUNCTION:    acpi_rs_get_aei_method_data

 *

 * PARAMETERS:  Node            - Device node

 *              ret_buffer      - Pointer to a buffer structure for the

 *                                results

 *

 * RETURN:      Status

 *

 * DESCRIPTION: This function is called to get the _AEI 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_aei_method_data(struct acpi_namespace_node *node,

			    struct acpi_buffer *ret_buffer)

{

	union acpi_operand_object *obj_desc;

	acpi_status status;



	ACPI_FUNCTION_TRACE(rs_get_aei_method_data);



	/* Parameters guaranteed valid by caller */



	/* Execute the method, no parameters */



	status = acpi_ut_evaluate_object(node, METHOD_NAME__AEI,

					 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

drivers/acpi/acpica/rsxface.c

+40 −0
Original line number Diff line number Diff line
@@ -307,6 +307,46 @@ acpi_set_current_resources(acpi_handle device_handle, 


ACPI_EXPORT_SYMBOL(acpi_set_current_resources)



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

 *

 * FUNCTION:    acpi_get_event_resources

 *

 * PARAMETERS:  device_handle   - Handle to the device object for the

 *                                device we are getting resources

 *              in_buffer       - Pointer to a buffer containing the

 *                                resources to be set for the device

 *

 * RETURN:      Status

 *

 * DESCRIPTION: This function is called to get the event resources for a

 *              specific device. The caller must first acquire a handle for

 *              the desired device. The resource data is passed to the routine

 *              the buffer pointed to by the in_buffer variable. Uses the

 *              _AEI method.

 *

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

acpi_status

acpi_get_event_resources(acpi_handle device_handle,

			 struct acpi_buffer *ret_buffer)

{

	acpi_status status;

	struct acpi_namespace_node *node;



	ACPI_FUNCTION_TRACE(acpi_get_event_resources);



	/* Validate parameters then dispatch to internal routine */



	status = acpi_rs_validate_parameters(device_handle, ret_buffer, &node);

	if (ACPI_FAILURE(status)) {

		return_ACPI_STATUS(status);

	}



	status = acpi_rs_get_aei_method_data(node, ret_buffer);

	return_ACPI_STATUS(status);

}



ACPI_EXPORT_SYMBOL(acpi_get_event_resources)



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

 *

 * FUNCTION:    acpi_resource_to_address64

include/acpi/acpixf.h

+4 −0
Original line number Diff line number Diff line
@@ -357,6 +357,10 @@ acpi_status 
acpi_get_possible_resources(acpi_handle device, struct acpi_buffer *ret_buffer);

#endif



acpi_status

acpi_get_event_resources(acpi_handle device_handle,

			 struct acpi_buffer *ret_buffer);



acpi_status

acpi_walk_resources(acpi_handle device,

		    char *name,