Merge ../to-linus
[pandora-kernel.git] / drivers / acpi / namespace / nsinit.c
index 362802a..0a08d2f 100644 (file)
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-
 #include <acpi/acpi.h>
 #include <acpi/acnamesp.h>
 #include <acpi/acdispat.h>
 #include <acpi/acinterp.h>
 
 #define _COMPONENT          ACPI_NAMESPACE
-        ACPI_MODULE_NAME    ("nsinit")
+ACPI_MODULE_NAME("nsinit")
 
 /* Local prototypes */
-
 static acpi_status
-acpi_ns_init_one_object (
-       acpi_handle                     obj_handle,
-       u32                             level,
-       void                            *context,
-       void                            **return_value);
+acpi_ns_init_one_object(acpi_handle obj_handle,
+                       u32 level, void *context, void **return_value);
 
 static acpi_status
-acpi_ns_init_one_device (
-       acpi_handle                     obj_handle,
-       u32                             nesting_level,
-       void                            *context,
-       void                            **return_value);
-
+acpi_ns_init_one_device(acpi_handle obj_handle,
+                       u32 nesting_level, void *context, void **return_value);
 
 /*******************************************************************************
  *
@@ -80,52 +71,48 @@ acpi_ns_init_one_device (
  *
  ******************************************************************************/
 
-acpi_status
-acpi_ns_initialize_objects (
-       void)
+acpi_status acpi_ns_initialize_objects(void)
 {
-       acpi_status                     status;
-       struct acpi_init_walk_info      info;
-
+       acpi_status status;
+       struct acpi_init_walk_info info;
 
-       ACPI_FUNCTION_TRACE ("ns_initialize_objects");
+       ACPI_FUNCTION_TRACE("ns_initialize_objects");
 
-
-       ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
-               "**** Starting initialization of namespace objects ****\n"));
-       ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
-               "Completing Region/Field/Buffer/Package initialization:"));
+       ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+                         "**** Starting initialization of namespace objects ****\n"));
+       ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
+                             "Completing Region/Field/Buffer/Package initialization:"));
 
        /* Set all init info to zero */
 
-       ACPI_MEMSET (&info, 0, sizeof (struct acpi_init_walk_info));
+       ACPI_MEMSET(&info, 0, sizeof(struct acpi_init_walk_info));
 
        /* Walk entire namespace from the supplied root */
 
-       status = acpi_walk_namespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
-                         ACPI_UINT32_MAX, acpi_ns_init_one_object,
-                         &info, NULL);
-       if (ACPI_FAILURE (status)) {
-               ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "walk_namespace failed! %s\n",
-                       acpi_format_exception (status)));
+       status = acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
+                                    ACPI_UINT32_MAX, acpi_ns_init_one_object,
+                                    &info, NULL);
+       if (ACPI_FAILURE(status)) {
+               ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "walk_namespace failed! %s\n",
+                                 acpi_format_exception(status)));
        }
 
-       ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
-               "\nInitialized %hd/%hd Regions %hd/%hd Fields %hd/%hd Buffers %hd/%hd Packages (%hd nodes)\n",
-               info.op_region_init, info.op_region_count,
-               info.field_init,    info.field_count,
-               info.buffer_init,   info.buffer_count,
-               info.package_init,  info.package_count, info.object_count));
+       ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
+                             "\nInitialized %hd/%hd Regions %hd/%hd Fields %hd/%hd Buffers %hd/%hd Packages (%hd nodes)\n",
+                             info.op_region_init, info.op_region_count,
+                             info.field_init, info.field_count,
+                             info.buffer_init, info.buffer_count,
+                             info.package_init, info.package_count,
+                             info.object_count));
 
-       ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
-               "%hd Control Methods found\n", info.method_count));
-       ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
-               "%hd Op Regions found\n", info.op_region_count));
+       ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+                         "%hd Control Methods found\n", info.method_count));
+       ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+                         "%hd Op Regions found\n", info.op_region_count));
 
-       return_ACPI_STATUS (AE_OK);
+       return_ACPI_STATUS(AE_OK);
 }
 
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ns_initialize_devices
@@ -142,16 +129,12 @@ acpi_ns_initialize_objects (
  *
  ******************************************************************************/
 
-acpi_status
-acpi_ns_initialize_devices (
-       void)
+acpi_status acpi_ns_initialize_devices(void)
 {
-       acpi_status                     status;
-       struct acpi_device_walk_info    info;
-
-
-       ACPI_FUNCTION_TRACE ("ns_initialize_devices");
+       acpi_status status;
+       struct acpi_device_walk_info info;
 
+       ACPI_FUNCTION_TRACE("ns_initialize_devices");
 
        /* Init counters */
 
@@ -159,34 +142,34 @@ acpi_ns_initialize_devices (
        info.num_STA = 0;
        info.num_INI = 0;
 
-       ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
-               "Executing all Device _STA and_INI methods:"));
+       ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
+                             "Executing all Device _STA and_INI methods:"));
 
-       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);
        }
 
        /* Walk namespace for all objects */
 
-       status = acpi_ns_walk_namespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
-                         ACPI_UINT32_MAX, TRUE, acpi_ns_init_one_device, &info, NULL);
+       status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
+                                       ACPI_UINT32_MAX, TRUE,
+                                       acpi_ns_init_one_device, &info, NULL);
 
-       (void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+       (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 
-       if (ACPI_FAILURE (status)) {
-               ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "walk_namespace failed! %s\n",
-                       acpi_format_exception (status)));
+       if (ACPI_FAILURE(status)) {
+               ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "walk_namespace failed! %s\n",
+                                 acpi_format_exception(status)));
        }
 
-       ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
-               "\n%hd Devices found containing: %hd _STA, %hd _INI methods\n",
-               info.device_count, info.num_STA, info.num_INI));
+       ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
+                             "\n%hd Devices found containing: %hd _STA, %hd _INI methods\n",
+                             info.device_count, info.num_STA, info.num_INI));
 
-       return_ACPI_STATUS (status);
+       return_ACPI_STATUS(status);
 }
 
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ns_init_one_object
@@ -208,28 +191,25 @@ acpi_ns_initialize_devices (
  ******************************************************************************/
 
 static acpi_status
-acpi_ns_init_one_object (
-       acpi_handle                     obj_handle,
-       u32                             level,
-       void                            *context,
-       void                            **return_value)
+acpi_ns_init_one_object(acpi_handle obj_handle,
+                       u32 level, void *context, void **return_value)
 {
-       acpi_object_type                type;
-       acpi_status                     status;
-       struct acpi_init_walk_info      *info = (struct acpi_init_walk_info *) context;
-       struct acpi_namespace_node      *node = (struct acpi_namespace_node *) obj_handle;
-       union acpi_operand_object       *obj_desc;
-
-
-       ACPI_FUNCTION_NAME ("ns_init_one_object");
+       acpi_object_type type;
+       acpi_status status;
+       struct acpi_init_walk_info *info =
+           (struct acpi_init_walk_info *)context;
+       struct acpi_namespace_node *node =
+           (struct acpi_namespace_node *)obj_handle;
+       union acpi_operand_object *obj_desc;
 
+       ACPI_FUNCTION_NAME("ns_init_one_object");
 
        info->object_count++;
 
        /* And even then, we are only interested in a few object types */
 
-       type = acpi_ns_get_type (obj_handle);
-       obj_desc = acpi_ns_get_attached_object (node);
+       type = acpi_ns_get_type(obj_handle);
+       obj_desc = acpi_ns_get_attached_object(node);
        if (!obj_desc) {
                return (AE_OK);
        }
@@ -269,8 +249,8 @@ acpi_ns_init_one_object (
        /*
         * Must lock the interpreter before executing AML code
         */
-       status = acpi_ex_enter_interpreter ();
-       if (ACPI_FAILURE (status)) {
+       status = acpi_ex_enter_interpreter();
+       if (ACPI_FAILURE(status)) {
                return (status);
        }
 
@@ -282,25 +262,25 @@ acpi_ns_init_one_object (
        case ACPI_TYPE_REGION:
 
                info->op_region_init++;
-               status = acpi_ds_get_region_arguments (obj_desc);
+               status = acpi_ds_get_region_arguments(obj_desc);
                break;
 
        case ACPI_TYPE_BUFFER_FIELD:
 
                info->field_init++;
-               status = acpi_ds_get_buffer_field_arguments (obj_desc);
+               status = acpi_ds_get_buffer_field_arguments(obj_desc);
                break;
 
        case ACPI_TYPE_BUFFER:
 
                info->buffer_init++;
-               status = acpi_ds_get_buffer_arguments (obj_desc);
+               status = acpi_ds_get_buffer_arguments(obj_desc);
                break;
 
        case ACPI_TYPE_PACKAGE:
 
                info->package_init++;
-               status = acpi_ds_get_package_arguments (obj_desc);
+               status = acpi_ds_get_package_arguments(obj_desc);
                break;
 
        default:
@@ -308,12 +288,13 @@ acpi_ns_init_one_object (
                break;
        }
 
-       if (ACPI_FAILURE (status)) {
-               ACPI_DEBUG_PRINT_RAW ((ACPI_DB_ERROR, "\n"));
-               ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
-                               "Could not execute arguments for [%4.4s] (%s), %s\n",
-                               acpi_ut_get_node_name (node), acpi_ut_get_type_name (type),
-                               acpi_format_exception (status)));
+       if (ACPI_FAILURE(status)) {
+               ACPI_DEBUG_PRINT_RAW((ACPI_DB_ERROR, "\n"));
+               ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+                                 "Could not execute arguments for [%4.4s] (%s), %s\n",
+                                 acpi_ut_get_node_name(node),
+                                 acpi_ut_get_type_name(type),
+                                 acpi_format_exception(status)));
        }
 
        /*
@@ -321,18 +302,17 @@ acpi_ns_init_one_object (
         * pathname
         */
        if (!(acpi_dbg_level & ACPI_LV_INIT_NAMES)) {
-               ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, "."));
+               ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "."));
        }
 
        /*
         * We ignore errors from above, and always return OK, since we don't want
         * to abort the walk on any single error.
         */
-       acpi_ex_exit_interpreter ();
+       acpi_ex_exit_interpreter();
        return (AE_OK);
 }
 
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ns_init_one_device
@@ -348,41 +328,37 @@ acpi_ns_init_one_object (
  ******************************************************************************/
 
 static acpi_status
-acpi_ns_init_one_device (
-       acpi_handle                     obj_handle,
-       u32                             nesting_level,
-       void                            *context,
-       void                            **return_value)
+acpi_ns_init_one_device(acpi_handle obj_handle,
+                       u32 nesting_level, void *context, void **return_value)
 {
-       struct acpi_device_walk_info   *info = (struct acpi_device_walk_info *) context;
-       struct acpi_parameter_info      pinfo;
-       u32                             flags;
-       acpi_status                     status;
-
-
-       ACPI_FUNCTION_TRACE ("ns_init_one_device");
+       struct acpi_device_walk_info *info =
+           (struct acpi_device_walk_info *)context;
+       struct acpi_parameter_info pinfo;
+       u32 flags;
+       acpi_status status;
 
+       ACPI_FUNCTION_TRACE("ns_init_one_device");
 
        pinfo.parameters = NULL;
        pinfo.parameter_type = ACPI_PARAM_ARGS;
 
-       pinfo.node = acpi_ns_map_handle_to_node (obj_handle);
+       pinfo.node = acpi_ns_map_handle_to_node(obj_handle);
        if (!pinfo.node) {
-               return_ACPI_STATUS (AE_BAD_PARAMETER);
+               return_ACPI_STATUS(AE_BAD_PARAMETER);
        }
 
        /*
         * We will run _STA/_INI on Devices, Processors and thermal_zones only
         */
-       if ((pinfo.node->type != ACPI_TYPE_DEVICE)      &&
-               (pinfo.node->type != ACPI_TYPE_PROCESSOR)   &&
-               (pinfo.node->type != ACPI_TYPE_THERMAL)) {
-               return_ACPI_STATUS (AE_OK);
+       if ((pinfo.node->type != ACPI_TYPE_DEVICE) &&
+           (pinfo.node->type != ACPI_TYPE_PROCESSOR) &&
+           (pinfo.node->type != ACPI_TYPE_THERMAL)) {
+               return_ACPI_STATUS(AE_OK);
        }
 
        if ((acpi_dbg_level <= ACPI_LV_ALL_EXCEPTIONS) &&
-               (!(acpi_dbg_level & ACPI_LV_INFO))) {
-               ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, "."));
+           (!(acpi_dbg_level & ACPI_LV_INFO))) {
+               ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "."));
        }
 
        info->device_count++;
@@ -390,20 +366,20 @@ acpi_ns_init_one_device (
        /*
         * Run _STA to determine if we can run _INI on the device.
         */
-       ACPI_DEBUG_EXEC (acpi_ut_display_init_pathname (ACPI_TYPE_METHOD,
-                          pinfo.node, METHOD_NAME__STA));
-       status = acpi_ut_execute_STA (pinfo.node, &flags);
+       ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname(ACPI_TYPE_METHOD,
+                                                     pinfo.node,
+                                                     METHOD_NAME__STA));
+       status = acpi_ut_execute_STA(pinfo.node, &flags);
 
-       if (ACPI_FAILURE (status)) {
+       if (ACPI_FAILURE(status)) {
                if (pinfo.node->type == ACPI_TYPE_DEVICE) {
                        /* Ignore error and move on to next device */
 
-                       return_ACPI_STATUS (AE_OK);
+                       return_ACPI_STATUS(AE_OK);
                }
 
                /* _STA is not required for Processor or thermal_zone objects */
-       }
-       else {
+       } else {
                info->num_STA++;
 
                if (!(flags & 0x01)) {
@@ -416,32 +392,34 @@ acpi_ns_init_one_device (
        /*
         * The device is present. Run _INI.
         */
-       ACPI_DEBUG_EXEC (acpi_ut_display_init_pathname (ACPI_TYPE_METHOD,
-                          pinfo.node, METHOD_NAME__INI));
-       status = acpi_ns_evaluate_relative (METHOD_NAME__INI, &pinfo);
-       if (ACPI_FAILURE (status)) {
+       ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname(ACPI_TYPE_METHOD,
+                                                     pinfo.node,
+                                                     METHOD_NAME__INI));
+       status = acpi_ns_evaluate_relative(METHOD_NAME__INI, &pinfo);
+       if (ACPI_FAILURE(status)) {
                /* No _INI (AE_NOT_FOUND) means device requires no initialization */
 
                if (status != AE_NOT_FOUND) {
                        /* Ignore error and move on to next device */
 
 #ifdef ACPI_DEBUG_OUTPUT
-                       char                *scope_name = acpi_ns_get_external_pathname (pinfo.node);
+                       char *scope_name =
+                           acpi_ns_get_external_pathname(pinfo.node);
 
-                       ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "%s._INI failed: %s\n",
-                                       scope_name, acpi_format_exception (status)));
+                       ACPI_DEBUG_PRINT((ACPI_DB_WARN, "%s._INI failed: %s\n",
+                                         scope_name,
+                                         acpi_format_exception(status)));
 
-                       ACPI_MEM_FREE (scope_name);
+                       ACPI_MEM_FREE(scope_name);
 #endif
                }
 
                status = AE_OK;
-       }
-       else {
+       } else {
                /* Delete any return object (especially if implicit_return is enabled) */
 
                if (pinfo.return_object) {
-                       acpi_ut_remove_reference (pinfo.return_object);
+                       acpi_ut_remove_reference(pinfo.return_object);
                }
 
                /* Count of successful INIs */
@@ -452,8 +430,9 @@ acpi_ns_init_one_device (
        if (acpi_gbl_init_handler) {
                /* External initialization handler is present, call it */
 
-               status = acpi_gbl_init_handler (pinfo.node, ACPI_INIT_DEVICE_INI);
+               status =
+                   acpi_gbl_init_handler(pinfo.node, ACPI_INIT_DEVICE_INI);
        }
 
-       return_ACPI_STATUS (status);
+       return_ACPI_STATUS(status);
 }