*****************************************************************************/
/*
- * Copyright (C) 2000 - 2008, Intel Corp.
+ * Copyright (C) 2000 - 2011, Intel Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
ACPI_MODULE_NAME("evregion")
/* Local prototypes */
+static u8
+acpi_ev_has_default_handler(struct acpi_namespace_node *node,
+ acpi_adr_space_type space_id);
+
static acpi_status
acpi_ev_reg_run(acpi_handle obj_handle,
u32 level, void *context, void **return_value);
return_ACPI_STATUS(status);
}
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_has_default_handler
+ *
+ * PARAMETERS: Node - Namespace node for the device
+ * space_id - The address space ID
+ *
+ * RETURN: TRUE if default handler is installed, FALSE otherwise
+ *
+ * DESCRIPTION: Check if the default handler is installed for the requested
+ * space ID.
+ *
+ ******************************************************************************/
+
+static u8
+acpi_ev_has_default_handler(struct acpi_namespace_node *node,
+ acpi_adr_space_type space_id)
+{
+ union acpi_operand_object *obj_desc;
+ union acpi_operand_object *handler_obj;
+
+ /* Must have an existing internal object */
+
+ obj_desc = acpi_ns_get_attached_object(node);
+ if (obj_desc) {
+ handler_obj = obj_desc->device.handler;
+
+ /* Walk the linked list of handlers for this object */
+
+ while (handler_obj) {
+ if (handler_obj->address_space.space_id == space_id) {
+ if (handler_obj->address_space.handler_flags &
+ ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) {
+ return (TRUE);
+ }
+ }
+
+ handler_obj = handler_obj->address_space.next;
+ }
+ }
+
+ return (FALSE);
+}
+
/*******************************************************************************
*
* FUNCTION: acpi_ev_initialize_op_regions
for (i = 0; i < ACPI_NUM_DEFAULT_SPACES; i++) {
/*
- * TBD: Make sure handler is the DEFAULT handler, otherwise
- * _REG will have already been run.
+ * Make sure the installed handler is the DEFAULT handler. If not the
+ * default, the _REG methods will have already been run (when the
+ * handler was installed)
*/
- status = acpi_ev_execute_reg_methods(acpi_gbl_root_node,
- acpi_gbl_default_address_spaces
- [i]);
+ if (acpi_ev_has_default_handler(acpi_gbl_root_node,
+ acpi_gbl_default_address_spaces
+ [i])) {
+ status =
+ acpi_ev_execute_reg_methods(acpi_gbl_root_node,
+ acpi_gbl_default_address_spaces
+ [i]);
+ }
}
(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
* connection status 1 for connecting the handler, 0 for disconnecting
* the handler (Passed as a parameter)
*/
- args[0] = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+ args[0] =
+ acpi_ut_create_integer_object((u64) region_obj->region.space_id);
if (!args[0]) {
status = AE_NO_MEMORY;
goto cleanup1;
}
- args[1] = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+ args[1] = acpi_ut_create_integer_object((u64) function);
if (!args[1]) {
status = AE_NO_MEMORY;
goto cleanup2;
}
- /* Setup the parameter objects */
-
- args[0]->integer.value = region_obj->region.space_id;
- args[1]->integer.value = function;
- args[2] = NULL;
+ args[2] = NULL; /* Terminate list */
/* Execute the method, no return value */
*
* PARAMETERS: region_obj - Internal region object
* Function - Read or Write operation
- * Address - Where in the space to read or write
+ * region_offset - Where in the region to read or write
* bit_width - Field width in bits (8, 16, 32, or 64)
* Value - Pointer to in or out value, must be
- * full 64-bit acpi_integer
+ * a full 64-bit integer
*
* RETURN: Status
*
acpi_status
acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
u32 function,
- acpi_physical_address address,
- u32 bit_width, acpi_integer * value)
+ u32 region_offset, u32 bit_width, u64 *value)
{
acpi_status status;
acpi_adr_space_handler handler;
ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
"Handler %p (@%p) Address %8.8X%8.8X [%s]\n",
®ion_obj->region.handler->address_space, handler,
- ACPI_FORMAT_NATIVE_UINT(address),
+ ACPI_FORMAT_NATIVE_UINT(region_obj->region.address +
+ region_offset),
acpi_ut_get_region_name(region_obj->region.
space_id)));
/* Call the handler */
- status = handler(function, address, bit_width, value,
- handler_desc->address_space.context,
+ status = handler(function,
+ (region_obj->region.address + region_offset),
+ bit_width, value, handler_desc->address_space.context,
region_obj2->extra.region_context);
if (ACPI_FAILURE(status)) {
/* Convert and validate the device handle */
- node = acpi_ns_map_handle_to_node(obj_handle);
+ node = acpi_ns_validate_handle(obj_handle);
if (!node) {
return (AE_BAD_PARAMETER);
}
*/
status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, node, ACPI_UINT32_MAX,
ACPI_NS_WALK_UNLOCK,
- acpi_ev_install_handler, handler_obj,
- NULL);
+ acpi_ev_install_handler, NULL,
+ handler_obj, NULL);
unlock_and_exit:
return_ACPI_STATUS(status);
*/
status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, node, ACPI_UINT32_MAX,
ACPI_NS_WALK_UNLOCK, acpi_ev_reg_run,
- &space_id, NULL);
+ NULL, &space_id, NULL);
return_ACPI_STATUS(status);
}
/* Convert and validate the device handle */
- node = acpi_ns_map_handle_to_node(obj_handle);
+ node = acpi_ns_validate_handle(obj_handle);
if (!node) {
return (AE_BAD_PARAMETER);
}
Code Review / linux-2.6.git / blobdiff