*****************************************************************************/
/*
- * Copyright (C) 2000 - 2004, R. Byron Moore
+ * Copyright (C) 2000 - 2006, R. Byron Moore
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* POSSIBILITY OF SUCH DAMAGES.
*/
-
#include <acpi/acpi.h>
#include <acpi/acevents.h>
#include <acpi/acnamesp.h>
#include <acpi/acinterp.h>
#define _COMPONENT ACPI_EVENTS
- ACPI_MODULE_NAME ("evregion")
-
+ACPI_MODULE_NAME("evregion")
#define ACPI_NUM_DEFAULT_SPACES 4
+static u8 acpi_gbl_default_address_spaces[ACPI_NUM_DEFAULT_SPACES] = {
+ ACPI_ADR_SPACE_SYSTEM_MEMORY,
+ ACPI_ADR_SPACE_SYSTEM_IO,
+ ACPI_ADR_SPACE_PCI_CONFIG,
+ ACPI_ADR_SPACE_DATA_TABLE
+};
+
+/* Local prototypes */
-static u8 acpi_gbl_default_address_spaces[ACPI_NUM_DEFAULT_SPACES] = {
- ACPI_ADR_SPACE_SYSTEM_MEMORY,
- ACPI_ADR_SPACE_SYSTEM_IO,
- ACPI_ADR_SPACE_PCI_CONFIG,
- ACPI_ADR_SPACE_DATA_TABLE};
+static acpi_status
+acpi_ev_reg_run(acpi_handle obj_handle,
+ u32 level, void *context, void **return_value);
+static acpi_status
+acpi_ev_install_handler(acpi_handle obj_handle,
+ u32 level, void *context, void **return_value);
/*******************************************************************************
*
*
******************************************************************************/
-acpi_status
-acpi_ev_install_region_handlers (
- void) {
- acpi_status status;
- acpi_native_uint i;
-
-
- ACPI_FUNCTION_TRACE ("ev_install_region_handlers");
+acpi_status acpi_ev_install_region_handlers(void)
+{
+ acpi_status status;
+ acpi_native_uint i;
+ ACPI_FUNCTION_TRACE(ev_install_region_handlers);
- status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE (status)) {
- return_ACPI_STATUS (status);
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
}
/*
* Similar for AE_SAME_HANDLER.
*/
for (i = 0; i < ACPI_NUM_DEFAULT_SPACES; i++) {
- status = acpi_ev_install_space_handler (acpi_gbl_root_node,
- acpi_gbl_default_address_spaces[i],
- ACPI_DEFAULT_HANDLER, NULL, NULL);
+ status = acpi_ev_install_space_handler(acpi_gbl_root_node,
+ acpi_gbl_default_address_spaces
+ [i],
+ ACPI_DEFAULT_HANDLER,
+ NULL, NULL);
switch (status) {
case AE_OK:
case AE_SAME_HANDLER:
}
}
-unlock_and_exit:
- (void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
- return_ACPI_STATUS (status);
+ unlock_and_exit:
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return_ACPI_STATUS(status);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ev_initialize_op_regions
*
******************************************************************************/
-acpi_status
-acpi_ev_initialize_op_regions (
- void)
+acpi_status acpi_ev_initialize_op_regions(void)
{
- acpi_status status;
- acpi_native_uint i;
+ acpi_status status;
+ acpi_native_uint i;
+ ACPI_FUNCTION_TRACE(ev_initialize_op_regions);
- ACPI_FUNCTION_TRACE ("ev_initialize_op_regions");
-
-
- status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE (status)) {
- return_ACPI_STATUS (status);
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
}
/*
* Run the _REG methods for op_regions in each default address space
*/
for (i = 0; i < ACPI_NUM_DEFAULT_SPACES; i++) {
+
/* TBD: Make sure handler is the DEFAULT handler, otherwise
* _REG will have already been run.
*/
- status = acpi_ev_execute_reg_methods (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);
- return_ACPI_STATUS (status);
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return_ACPI_STATUS(status);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ev_execute_reg_method
*
- * PARAMETERS: region_obj - Object structure
- * Function - Passed to _REG: On (1) or Off (0)
+ * PARAMETERS: region_obj - Region object
+ * Function - Passed to _REG: On (1) or Off (0)
*
* RETURN: Status
*
******************************************************************************/
acpi_status
-acpi_ev_execute_reg_method (
- union acpi_operand_object *region_obj,
- u32 function)
+acpi_ev_execute_reg_method(union acpi_operand_object *region_obj, u32 function)
{
- struct acpi_parameter_info info;
- union acpi_operand_object *params[3];
- union acpi_operand_object *region_obj2;
- acpi_status status;
+ struct acpi_evaluate_info *info;
+ union acpi_operand_object *args[3];
+ union acpi_operand_object *region_obj2;
+ acpi_status status;
+ ACPI_FUNCTION_TRACE(ev_execute_reg_method);
- ACPI_FUNCTION_TRACE ("ev_execute_reg_method");
-
-
- region_obj2 = acpi_ns_get_secondary_object (region_obj);
+ region_obj2 = acpi_ns_get_secondary_object(region_obj);
if (!region_obj2) {
- return_ACPI_STATUS (AE_NOT_EXIST);
+ return_ACPI_STATUS(AE_NOT_EXIST);
}
if (region_obj2->extra.method_REG == NULL) {
- return_ACPI_STATUS (AE_OK);
+ return_ACPI_STATUS(AE_OK);
}
+ /* Allocate and initialize the evaluation information block */
+
+ info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
+ if (!info) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ info->prefix_node = region_obj2->extra.method_REG;
+ info->pathname = NULL;
+ info->parameters = args;
+ info->parameter_type = ACPI_PARAM_ARGS;
+ info->flags = ACPI_IGNORE_RETURN_VALUE;
+
/*
* The _REG method has two arguments:
*
- * Arg0, Integer: Operation region space ID
- * Same value as region_obj->Region.space_id
- * Arg1, Integer: connection status
- * 1 for connecting the handler,
- * 0 for disconnecting the handler
- * Passed as a parameter
+ * Arg0 - Integer:
+ * Operation region space ID Same value as region_obj->Region.space_id
+ *
+ * Arg1 - Integer:
+ * connection status 1 for connecting the handler, 0 for disconnecting
+ * the handler (Passed as a parameter)
*/
- params[0] = acpi_ut_create_internal_object (ACPI_TYPE_INTEGER);
- if (!params[0]) {
- return_ACPI_STATUS (AE_NO_MEMORY);
+ args[0] = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+ if (!args[0]) {
+ status = AE_NO_MEMORY;
+ goto cleanup1;
}
- params[1] = acpi_ut_create_internal_object (ACPI_TYPE_INTEGER);
- if (!params[1]) {
+ args[1] = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+ if (!args[1]) {
status = AE_NO_MEMORY;
- goto cleanup;
+ goto cleanup2;
}
/* Setup the parameter objects */
- params[0]->integer.value = region_obj->region.space_id;
- params[1]->integer.value = function;
- params[2] = NULL;
-
- info.node = region_obj2->extra.method_REG;
- info.parameters = params;
- info.parameter_type = ACPI_PARAM_ARGS;
+ args[0]->integer.value = region_obj->region.space_id;
+ args[1]->integer.value = function;
+ args[2] = NULL;
/* Execute the method, no return value */
- ACPI_DEBUG_EXEC (acpi_ut_display_init_pathname (
- ACPI_TYPE_METHOD, info.node, NULL));
- status = acpi_ns_evaluate_by_handle (&info);
+ ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
+ (ACPI_TYPE_METHOD, info->prefix_node, NULL));
- acpi_ut_remove_reference (params[1]);
+ status = acpi_ns_evaluate(info);
+ acpi_ut_remove_reference(args[1]);
-cleanup:
- acpi_ut_remove_reference (params[0]);
+ cleanup2:
+ acpi_ut_remove_reference(args[0]);
- return_ACPI_STATUS (status);
+ cleanup1:
+ ACPI_FREE(info);
+ return_ACPI_STATUS(status);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ev_address_space_dispatch
* Function - Read or Write operation
* Address - Where in the space to read or write
* bit_width - Field width in bits (8, 16, 32, or 64)
- * Value - Pointer to in or out value
+ * Value - Pointer to in or out value, must be
+ * full 64-bit acpi_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,
- void *value)
+acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
+ u32 function,
+ acpi_physical_address address,
+ u32 bit_width, acpi_integer * value)
{
- acpi_status status;
- acpi_status status2;
- acpi_adr_space_handler handler;
- acpi_adr_space_setup region_setup;
- union acpi_operand_object *handler_desc;
- union acpi_operand_object *region_obj2;
- void *region_context = NULL;
-
-
- ACPI_FUNCTION_TRACE ("ev_address_space_dispatch");
+ acpi_status status;
+ acpi_status status2;
+ acpi_adr_space_handler handler;
+ acpi_adr_space_setup region_setup;
+ union acpi_operand_object *handler_desc;
+ union acpi_operand_object *region_obj2;
+ void *region_context = NULL;
+ ACPI_FUNCTION_TRACE(ev_address_space_dispatch);
- region_obj2 = acpi_ns_get_secondary_object (region_obj);
+ region_obj2 = acpi_ns_get_secondary_object(region_obj);
if (!region_obj2) {
- return_ACPI_STATUS (AE_NOT_EXIST);
+ return_ACPI_STATUS(AE_NOT_EXIST);
}
/* Ensure that there is a handler associated with this region */
handler_desc = region_obj->region.handler;
if (!handler_desc) {
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
- "No handler for Region [%4.4s] (%p) [%s]\n",
- acpi_ut_get_node_name (region_obj->region.node),
- region_obj, acpi_ut_get_region_name (region_obj->region.space_id)));
-
- return_ACPI_STATUS (AE_NOT_EXIST);
+ ACPI_ERROR((AE_INFO,
+ "No handler for Region [%4.4s] (%p) [%s]",
+ acpi_ut_get_node_name(region_obj->region.node),
+ region_obj,
+ acpi_ut_get_region_name(region_obj->region.
+ space_id)));
+
+ return_ACPI_STATUS(AE_NOT_EXIST);
}
/*
*/
region_setup = handler_desc->address_space.setup;
if (!region_setup) {
+
/* No initialization routine, exit with error */
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "No init routine for region(%p) [%s]\n",
- region_obj, acpi_ut_get_region_name (region_obj->region.space_id)));
- return_ACPI_STATUS (AE_NOT_EXIST);
+ ACPI_ERROR((AE_INFO,
+ "No init routine for region(%p) [%s]",
+ region_obj,
+ acpi_ut_get_region_name(region_obj->region.
+ space_id)));
+ return_ACPI_STATUS(AE_NOT_EXIST);
}
/*
- * We must exit the interpreter because the region setup will potentially
- * execute control methods (e.g., _REG method for this region)
+ * We must exit the interpreter because the region
+ * setup will potentially execute control methods
+ * (e.g., _REG method for this region)
*/
- acpi_ex_exit_interpreter ();
+ acpi_ex_exit_interpreter();
- status = region_setup (region_obj, ACPI_REGION_ACTIVATE,
- handler_desc->address_space.context, ®ion_context);
+ status = region_setup(region_obj, ACPI_REGION_ACTIVATE,
+ handler_desc->address_space.context,
+ ®ion_context);
/* Re-enter the interpreter */
- status2 = acpi_ex_enter_interpreter ();
- if (ACPI_FAILURE (status2)) {
- return_ACPI_STATUS (status2);
+ status2 = acpi_ex_enter_interpreter();
+ if (ACPI_FAILURE(status2)) {
+ return_ACPI_STATUS(status2);
}
/* Check for failure of the Region Setup */
- if (ACPI_FAILURE (status)) {
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Region Init: %s [%s]\n",
- acpi_format_exception (status),
- acpi_ut_get_region_name (region_obj->region.space_id)));
- return_ACPI_STATUS (status);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "During region initialization: [%s]",
+ acpi_ut_get_region_name(region_obj->
+ region.
+ space_id)));
+ return_ACPI_STATUS(status);
}
/*
region_obj->region.flags |= AOPOBJ_SETUP_COMPLETE;
if (region_obj2->extra.region_context) {
+
/* The handler for this region was already installed */
- ACPI_MEM_FREE (region_context);
- }
- else {
+ ACPI_FREE(region_context);
+ } else {
/*
* Save the returned context for use in all accesses to
* this particular region
*/
- region_obj2->extra.region_context = region_context;
+ region_obj2->extra.region_context =
+ region_context;
}
}
}
handler = handler_desc->address_space.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_UINT64 (address),
- acpi_ut_get_region_name (region_obj->region.space_id)));
+ 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_UINT64(address),
+ acpi_ut_get_region_name(region_obj->region.
+ space_id)));
- if (!(handler_desc->address_space.hflags & ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)) {
+ if (!(handler_desc->address_space.handler_flags &
+ ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)) {
/*
* For handlers other than the default (supplied) handlers, we must
* exit the interpreter because the handler *might* block -- we don't
/* Call the handler */
- status = handler (function, address, bit_width, value,
+ status = handler(function, address, bit_width, value,
handler_desc->address_space.context,
region_obj2->extra.region_context);
- if (ACPI_FAILURE (status)) {
- ACPI_REPORT_ERROR (("Handler for [%s] returned %s\n",
- acpi_ut_get_region_name (region_obj->region.space_id),
- acpi_format_exception (status)));
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status, "Returned by Handler for [%s]",
+ acpi_ut_get_region_name(region_obj->region.
+ space_id)));
}
- if (!(handler_desc->address_space.hflags & ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)) {
+ if (!(handler_desc->address_space.handler_flags &
+ ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)) {
/*
* We just returned from a non-default handler, we must re-enter the
* interpreter
*/
- status2 = acpi_ex_enter_interpreter ();
- if (ACPI_FAILURE (status2)) {
- return_ACPI_STATUS (status2);
+ status2 = acpi_ex_enter_interpreter();
+ if (ACPI_FAILURE(status2)) {
+ return_ACPI_STATUS(status2);
}
}
- return_ACPI_STATUS (status);
+ return_ACPI_STATUS(status);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ev_detach_region
******************************************************************************/
void
-acpi_ev_detach_region(
- union acpi_operand_object *region_obj,
- u8 acpi_ns_is_locked)
+acpi_ev_detach_region(union acpi_operand_object *region_obj,
+ u8 acpi_ns_is_locked)
{
- union acpi_operand_object *handler_obj;
- union acpi_operand_object *obj_desc;
- union acpi_operand_object **last_obj_ptr;
- acpi_adr_space_setup region_setup;
- void **region_context;
- union acpi_operand_object *region_obj2;
- acpi_status status;
-
-
- ACPI_FUNCTION_TRACE ("ev_detach_region");
+ union acpi_operand_object *handler_obj;
+ union acpi_operand_object *obj_desc;
+ union acpi_operand_object **last_obj_ptr;
+ acpi_adr_space_setup region_setup;
+ void **region_context;
+ union acpi_operand_object *region_obj2;
+ acpi_status status;
+ ACPI_FUNCTION_TRACE(ev_detach_region);
- region_obj2 = acpi_ns_get_secondary_object (region_obj);
+ region_obj2 = acpi_ns_get_secondary_object(region_obj);
if (!region_obj2) {
return_VOID;
}
handler_obj = region_obj->region.handler;
if (!handler_obj) {
+
/* This region has no handler, all done */
return_VOID;
last_obj_ptr = &handler_obj->address_space.region_list;
while (obj_desc) {
+
/* Is this the correct Region? */
if (obj_desc == region_obj) {
- ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
- "Removing Region %p from address handler %p\n",
- region_obj, handler_obj));
+ ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
+ "Removing Region %p from address handler %p\n",
+ region_obj, handler_obj));
/* This is it, remove it from the handler's list */
*last_obj_ptr = obj_desc->region.next;
- obj_desc->region.next = NULL; /* Must clear field */
+ obj_desc->region.next = NULL; /* Must clear field */
if (acpi_ns_is_locked) {
- status = acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE (status)) {
+ status =
+ acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
return_VOID;
}
}
/* Now stop region accesses by executing the _REG method */
- status = acpi_ev_execute_reg_method (region_obj, 0);
- if (ACPI_FAILURE (status)) {
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "%s from region _REG, [%s]\n",
- acpi_format_exception (status),
- acpi_ut_get_region_name (region_obj->region.space_id)));
+ status = acpi_ev_execute_reg_method(region_obj, 0);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "from region _REG, [%s]",
+ acpi_ut_get_region_name
+ (region_obj->region.space_id)));
}
if (acpi_ns_is_locked) {
- status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE (status)) {
+ status =
+ acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
return_VOID;
}
}
- /* Call the setup handler with the deactivate notification */
-
- region_setup = handler_obj->address_space.setup;
- status = region_setup (region_obj, ACPI_REGION_DEACTIVATE,
- handler_obj->address_space.context, region_context);
-
- /* Init routine may fail, Just ignore errors */
+ /*
+ * If the region has been activated, call the setup handler
+ * with the deactivate notification
+ */
+ if (region_obj->region.flags & AOPOBJ_SETUP_COMPLETE) {
+ region_setup = handler_obj->address_space.setup;
+ status =
+ region_setup(region_obj,
+ ACPI_REGION_DEACTIVATE,
+ handler_obj->address_space.
+ context, region_context);
+
+ /* Init routine may fail, Just ignore errors */
+
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "from region handler - deactivate, [%s]",
+ acpi_ut_get_region_name
+ (region_obj->region.
+ space_id)));
+ }
- if (ACPI_FAILURE (status)) {
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "%s from region init, [%s]\n",
- acpi_format_exception (status),
- acpi_ut_get_region_name (region_obj->region.space_id)));
+ region_obj->region.flags &=
+ ~(AOPOBJ_SETUP_COMPLETE);
}
- region_obj->region.flags &= ~(AOPOBJ_SETUP_COMPLETE);
-
/*
* Remove handler reference in the region
*
- * NOTE: this doesn't mean that the region goes away
- * The region is just inaccessible as indicated to
- * the _REG method
+ * NOTE: this doesn't mean that the region goes away, the region
+ * is just inaccessible as indicated to the _REG method
*
- * If the region is on the handler's list
- * this better be the region's handler
+ * If the region is on the handler's list, this must be the
+ * region's handler
*/
region_obj->region.handler = NULL;
- acpi_ut_remove_reference (handler_obj);
+ acpi_ut_remove_reference(handler_obj);
return_VOID;
}
/* If we get here, the region was not in the handler's region list */
- ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
- "Cannot remove region %p from address handler %p\n",
- region_obj, handler_obj));
+ ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
+ "Cannot remove region %p from address handler %p\n",
+ region_obj, handler_obj));
return_VOID;
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ev_attach_region
******************************************************************************/
acpi_status
-acpi_ev_attach_region (
- union acpi_operand_object *handler_obj,
- union acpi_operand_object *region_obj,
- u8 acpi_ns_is_locked)
+acpi_ev_attach_region(union acpi_operand_object *handler_obj,
+ union acpi_operand_object *region_obj,
+ u8 acpi_ns_is_locked)
{
- ACPI_FUNCTION_TRACE ("ev_attach_region");
+ ACPI_FUNCTION_TRACE(ev_attach_region);
-
- ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
- "Adding Region [%4.4s] %p to address handler %p [%s]\n",
- acpi_ut_get_node_name (region_obj->region.node),
- region_obj, handler_obj,
- acpi_ut_get_region_name (region_obj->region.space_id)));
+ ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
+ "Adding Region [%4.4s] %p to address handler %p [%s]\n",
+ acpi_ut_get_node_name(region_obj->region.node),
+ region_obj, handler_obj,
+ acpi_ut_get_region_name(region_obj->region.
+ space_id)));
/* Link this region to the front of the handler's list */
/* Install the region's handler */
if (region_obj->region.handler) {
- return_ACPI_STATUS (AE_ALREADY_EXISTS);
+ return_ACPI_STATUS(AE_ALREADY_EXISTS);
}
region_obj->region.handler = handler_obj;
- acpi_ut_add_reference (handler_obj);
+ acpi_ut_add_reference(handler_obj);
- return_ACPI_STATUS (AE_OK);
+ return_ACPI_STATUS(AE_OK);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ev_install_handler
*
******************************************************************************/
-acpi_status
-acpi_ev_install_handler (
- acpi_handle obj_handle,
- u32 level,
- void *context,
- void **return_value)
+static acpi_status
+acpi_ev_install_handler(acpi_handle obj_handle,
+ u32 level, void *context, void **return_value)
{
- union acpi_operand_object *handler_obj;
- union acpi_operand_object *next_handler_obj;
- union acpi_operand_object *obj_desc;
- struct acpi_namespace_node *node;
- acpi_status status;
-
+ union acpi_operand_object *handler_obj;
+ union acpi_operand_object *next_handler_obj;
+ union acpi_operand_object *obj_desc;
+ struct acpi_namespace_node *node;
+ acpi_status status;
- ACPI_FUNCTION_NAME ("ev_install_handler");
+ ACPI_FUNCTION_NAME(ev_install_handler);
-
- handler_obj = (union acpi_operand_object *) context;
+ handler_obj = (union acpi_operand_object *)context;
/* Parameter validation */
/* Convert and validate the device handle */
- node = acpi_ns_map_handle_to_node (obj_handle);
+ node = acpi_ns_map_handle_to_node(obj_handle);
if (!node) {
return (AE_BAD_PARAMETER);
}
* that are allowed to have address space handlers
*/
if ((node->type != ACPI_TYPE_DEVICE) &&
- (node->type != ACPI_TYPE_REGION) &&
- (node != acpi_gbl_root_node)) {
+ (node->type != ACPI_TYPE_REGION) && (node != acpi_gbl_root_node)) {
return (AE_OK);
}
/* Check for an existing internal object */
- obj_desc = acpi_ns_get_attached_object (node);
+ obj_desc = acpi_ns_get_attached_object(node);
if (!obj_desc) {
+
/* No object, just exit */
return (AE_OK);
/* Devices are handled different than regions */
- if (ACPI_GET_OBJECT_TYPE (obj_desc) == ACPI_TYPE_DEVICE) {
+ if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_DEVICE) {
+
/* Check if this Device already has a handler for this address space */
next_handler_obj = obj_desc->device.handler;
while (next_handler_obj) {
+
/* Found a handler, is it for the same address space? */
- if (next_handler_obj->address_space.space_id == handler_obj->address_space.space_id) {
- ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
- "Found handler for region [%s] in device %p(%p) handler %p\n",
- acpi_ut_get_region_name (handler_obj->address_space.space_id),
- obj_desc, next_handler_obj, handler_obj));
+ if (next_handler_obj->address_space.space_id ==
+ handler_obj->address_space.space_id) {
+ ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
+ "Found handler for region [%s] in device %p(%p) handler %p\n",
+ acpi_ut_get_region_name
+ (handler_obj->address_space.
+ space_id), obj_desc,
+ next_handler_obj,
+ handler_obj));
/*
* Since the object we found it on was a device, then it
*
* First disconnect region for any previous handler (if any)
*/
- acpi_ev_detach_region (obj_desc, FALSE);
+ acpi_ev_detach_region(obj_desc, FALSE);
/* Connect the region to the new handler */
- status = acpi_ev_attach_region (handler_obj, obj_desc, FALSE);
+ status = acpi_ev_attach_region(handler_obj, obj_desc, FALSE);
return (status);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ev_install_space_handler
******************************************************************************/
acpi_status
-acpi_ev_install_space_handler (
- struct acpi_namespace_node *node,
- acpi_adr_space_type space_id,
- acpi_adr_space_handler handler,
- acpi_adr_space_setup setup,
- void *context)
+acpi_ev_install_space_handler(struct acpi_namespace_node * node,
+ acpi_adr_space_type space_id,
+ acpi_adr_space_handler handler,
+ acpi_adr_space_setup setup, void *context)
{
- union acpi_operand_object *obj_desc;
- union acpi_operand_object *handler_obj;
- acpi_status status;
- acpi_object_type type;
- u16 flags = 0;
-
-
- ACPI_FUNCTION_TRACE ("ev_install_space_handler");
+ union acpi_operand_object *obj_desc;
+ union acpi_operand_object *handler_obj;
+ acpi_status status;
+ acpi_object_type type;
+ u8 flags = 0;
+ ACPI_FUNCTION_TRACE(ev_install_space_handler);
/*
* This registration is valid for only the types below
* and the root. This is where the default handlers
* get placed.
*/
- if ((node->type != ACPI_TYPE_DEVICE) &&
- (node->type != ACPI_TYPE_PROCESSOR) &&
- (node->type != ACPI_TYPE_THERMAL) &&
- (node != acpi_gbl_root_node)) {
+ if ((node->type != ACPI_TYPE_DEVICE) &&
+ (node->type != ACPI_TYPE_PROCESSOR) &&
+ (node->type != ACPI_TYPE_THERMAL) && (node != acpi_gbl_root_node)) {
status = AE_BAD_PARAMETER;
goto unlock_and_exit;
}
switch (space_id) {
case ACPI_ADR_SPACE_SYSTEM_MEMORY:
handler = acpi_ex_system_memory_space_handler;
- setup = acpi_ev_system_memory_region_setup;
+ setup = acpi_ev_system_memory_region_setup;
break;
case ACPI_ADR_SPACE_SYSTEM_IO:
handler = acpi_ex_system_io_space_handler;
- setup = acpi_ev_io_space_region_setup;
+ setup = acpi_ev_io_space_region_setup;
break;
case ACPI_ADR_SPACE_PCI_CONFIG:
handler = acpi_ex_pci_config_space_handler;
- setup = acpi_ev_pci_config_region_setup;
+ setup = acpi_ev_pci_config_region_setup;
break;
case ACPI_ADR_SPACE_CMOS:
handler = acpi_ex_cmos_space_handler;
- setup = acpi_ev_cmos_region_setup;
+ setup = acpi_ev_cmos_region_setup;
break;
case ACPI_ADR_SPACE_PCI_BAR_TARGET:
handler = acpi_ex_pci_bar_space_handler;
- setup = acpi_ev_pci_bar_region_setup;
+ setup = acpi_ev_pci_bar_region_setup;
break;
case ACPI_ADR_SPACE_DATA_TABLE:
handler = acpi_ex_data_table_space_handler;
- setup = NULL;
+ setup = NULL;
break;
default:
/* Check for an existing internal object */
- obj_desc = acpi_ns_get_attached_object (node);
+ obj_desc = acpi_ns_get_attached_object(node);
if (obj_desc) {
/*
* The attached device object already exists.
/* Walk the handler list for this device */
while (handler_obj) {
+
/* Same space_id indicates a handler already installed */
if (handler_obj->address_space.space_id == space_id) {
- if (handler_obj->address_space.handler == handler) {
+ if (handler_obj->address_space.handler ==
+ handler) {
/*
* It is (relatively) OK to attempt to install the SAME
- * handler twice. This can easily happen with PCI_Config space.
+ * handler twice. This can easily happen
+ * with PCI_Config space.
*/
status = AE_SAME_HANDLER;
goto unlock_and_exit;
- }
- else {
+ } else {
/* A handler is already installed */
status = AE_ALREADY_EXISTS;
handler_obj = handler_obj->address_space.next;
}
- }
- else {
- ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
- "Creating object on Device %p while installing handler\n", node));
+ } else {
+ ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
+ "Creating object on Device %p while installing handler\n",
+ node));
/* obj_desc does not exist, create one */
if (node->type == ACPI_TYPE_ANY) {
type = ACPI_TYPE_DEVICE;
- }
- else {
+ } else {
type = node->type;
}
- obj_desc = acpi_ut_create_internal_object (type);
+ obj_desc = acpi_ut_create_internal_object(type);
if (!obj_desc) {
status = AE_NO_MEMORY;
goto unlock_and_exit;
/* Attach the new object to the Node */
- status = acpi_ns_attach_object (node, obj_desc, type);
+ status = acpi_ns_attach_object(node, obj_desc, type);
/* Remove local reference to the object */
- acpi_ut_remove_reference (obj_desc);
+ acpi_ut_remove_reference(obj_desc);
- if (ACPI_FAILURE (status)) {
+ if (ACPI_FAILURE(status)) {
goto unlock_and_exit;
}
}
- ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
- "Installing address handler for region %s(%X) on Device %4.4s %p(%p)\n",
- acpi_ut_get_region_name (space_id), space_id,
- acpi_ut_get_node_name (node), node, obj_desc));
+ ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
+ "Installing address handler for region %s(%X) on Device %4.4s %p(%p)\n",
+ acpi_ut_get_region_name(space_id), space_id,
+ acpi_ut_get_node_name(node), node, obj_desc));
/*
* Install the handler
* Just allocate the object for the handler and link it
* into the list.
*/
- handler_obj = acpi_ut_create_internal_object (ACPI_TYPE_LOCAL_ADDRESS_HANDLER);
+ handler_obj =
+ acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_ADDRESS_HANDLER);
if (!handler_obj) {
status = AE_NO_MEMORY;
goto unlock_and_exit;
/* Init handler obj */
- handler_obj->address_space.space_id = (u8) space_id;
- handler_obj->address_space.hflags = flags;
+ handler_obj->address_space.space_id = (u8) space_id;
+ handler_obj->address_space.handler_flags = flags;
handler_obj->address_space.region_list = NULL;
- handler_obj->address_space.node = node;
- handler_obj->address_space.handler = handler;
- handler_obj->address_space.context = context;
- handler_obj->address_space.setup = setup;
+ handler_obj->address_space.node = node;
+ handler_obj->address_space.handler = handler;
+ handler_obj->address_space.context = context;
+ handler_obj->address_space.setup = setup;
/* Install at head of Device.address_space list */
- handler_obj->address_space.next = obj_desc->device.handler;
+ handler_obj->address_space.next = obj_desc->device.handler;
/*
* The Device object is the first reference on the handler_obj.
* In either case, back up and search down the remainder
* of the branch
*/
- status = acpi_ns_walk_namespace (ACPI_TYPE_ANY, node, ACPI_UINT32_MAX,
- ACPI_NS_WALK_UNLOCK, acpi_ev_install_handler,
- handler_obj, NULL);
+ status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, node, ACPI_UINT32_MAX,
+ ACPI_NS_WALK_UNLOCK,
+ acpi_ev_install_handler, handler_obj,
+ NULL);
-unlock_and_exit:
- return_ACPI_STATUS (status);
+ unlock_and_exit:
+ return_ACPI_STATUS(status);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ev_execute_reg_methods
******************************************************************************/
acpi_status
-acpi_ev_execute_reg_methods (
- struct acpi_namespace_node *node,
- acpi_adr_space_type space_id)
+acpi_ev_execute_reg_methods(struct acpi_namespace_node *node,
+ acpi_adr_space_type space_id)
{
- acpi_status status;
-
-
- ACPI_FUNCTION_TRACE ("ev_execute_reg_methods");
+ acpi_status status;
+ ACPI_FUNCTION_TRACE(ev_execute_reg_methods);
/*
* Run all _REG methods for all Operation Regions for this
* must be installed for all regions of this Space ID before we
* can run any _REG methods)
*/
- status = acpi_ns_walk_namespace (ACPI_TYPE_ANY, node, ACPI_UINT32_MAX,
- ACPI_NS_WALK_UNLOCK, acpi_ev_reg_run,
- &space_id, NULL);
+ status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, node, ACPI_UINT32_MAX,
+ ACPI_NS_WALK_UNLOCK, acpi_ev_reg_run,
+ &space_id, NULL);
- return_ACPI_STATUS (status);
+ return_ACPI_STATUS(status);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ev_reg_run
*
* PARAMETERS: walk_namespace callback
*
- * DESCRIPTION: Run _REg method for region objects of the requested space_iD
+ * DESCRIPTION: Run _REG method for region objects of the requested space_iD
*
******************************************************************************/
-acpi_status
-acpi_ev_reg_run (
- acpi_handle obj_handle,
- u32 level,
- void *context,
- void **return_value)
+static acpi_status
+acpi_ev_reg_run(acpi_handle obj_handle,
+ u32 level, void *context, void **return_value)
{
- union acpi_operand_object *obj_desc;
- struct acpi_namespace_node *node;
- acpi_adr_space_type space_id;
- acpi_status status;
-
+ union acpi_operand_object *obj_desc;
+ struct acpi_namespace_node *node;
+ acpi_adr_space_type space_id;
+ acpi_status status;
- space_id = *ACPI_CAST_PTR (acpi_adr_space_type, context);
+ space_id = *ACPI_CAST_PTR(acpi_adr_space_type, context);
/* Convert and validate the device handle */
- node = acpi_ns_map_handle_to_node (obj_handle);
+ node = acpi_ns_map_handle_to_node(obj_handle);
if (!node) {
return (AE_BAD_PARAMETER);
}
* We only care about regions.and objects
* that are allowed to have address space handlers
*/
- if ((node->type != ACPI_TYPE_REGION) &&
- (node != acpi_gbl_root_node)) {
+ if ((node->type != ACPI_TYPE_REGION) && (node != acpi_gbl_root_node)) {
return (AE_OK);
}
/* Check for an existing internal object */
- obj_desc = acpi_ns_get_attached_object (node);
+ obj_desc = acpi_ns_get_attached_object(node);
if (!obj_desc) {
+
/* No object, just exit */
return (AE_OK);
return (AE_OK);
}
- status = acpi_ev_execute_reg_method (obj_desc, 1);
+ status = acpi_ev_execute_reg_method(obj_desc, 1);
return (status);
}
-
git://git.onelab.eu / linux-2.6.git / blobdiff