Merge tag 'sound-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

[~andy/linux] / drivers / acpi / acpica / rsxface.c

diff --git a/drivers/acpi/acpica/rsxface.c b/drivers/acpi/acpica/rsxface.c
index fe86b37b16ce657bd719b68c656ce252581a0452..f58c098c7aeb3fd5f5e35b532fbbd82da6eab42a 100644 (file)
--- a/drivers/acpi/acpica/rsxface.c
+++ b/drivers/acpi/acpica/rsxface.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2011, Intel Corp.
+ * Copyright (C) 2000 - 2012, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -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
@@ -486,8 +526,9 @@ acpi_rs_match_vendor_resource(struct acpi_resource *resource, void *context)
  *
  * PARAMETERS:  device_handle   - Handle to the device object for the
  *                                device we are querying
- *              Name            - Method name of the resources we want
- *                                (METHOD_NAME__CRS or METHOD_NAME__PRS)
+ *              Name            - Method name of the resources we want.
+ *                                (METHOD_NAME__CRS, METHOD_NAME__PRS, or
+ *                                METHOD_NAME__AEI)
  *              user_function   - Called for each resource
  *              Context         - Passed to user_function
  *
@@ -514,11 +555,12 @@ acpi_walk_resources(acpi_handle device_handle,
 
        if (!device_handle || !user_function || !name ||
            (!ACPI_COMPARE_NAME(name, METHOD_NAME__CRS) &&
-            !ACPI_COMPARE_NAME(name, METHOD_NAME__PRS))) {
+            !ACPI_COMPARE_NAME(name, METHOD_NAME__PRS) &&
+            !ACPI_COMPARE_NAME(name, METHOD_NAME__AEI))) {
                return_ACPI_STATUS(AE_BAD_PARAMETER);
        }
 
-       /* Get the _CRS or _PRS resource list */
+       /* Get the _CRS/_PRS/_AEI resource list */
 
        buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
        status = acpi_rs_get_method_data(device_handle, name, &buffer);