diff options
Diffstat (limited to 'drivers/acpi/executer/excreate.c')
| -rw-r--r-- | drivers/acpi/executer/excreate.c | 342 |
1 files changed, 153 insertions, 189 deletions
diff --git a/drivers/acpi/executer/excreate.c b/drivers/acpi/executer/excreate.c index 812cdcb2e37..91c49188fb0 100644 --- a/drivers/acpi/executer/excreate.c +++ b/drivers/acpi/executer/excreate.c @@ -41,7 +41,6 @@ * POSSIBILITY OF SUCH DAMAGES. */ - #include <acpi/acpi.h> #include <acpi/acinterp.h> #include <acpi/amlcode.h> @@ -49,10 +48,8 @@ #include <acpi/acevents.h> #include <acpi/actables.h> - #define _COMPONENT ACPI_EXECUTER - ACPI_MODULE_NAME ("excreate") - +ACPI_MODULE_NAME("excreate") #ifndef ACPI_NO_METHOD_EXECUTION /******************************************************************************* @@ -66,33 +63,30 @@ * DESCRIPTION: Create a new named alias * ******************************************************************************/ - -acpi_status -acpi_ex_create_alias ( - struct acpi_walk_state *walk_state) +acpi_status acpi_ex_create_alias(struct acpi_walk_state *walk_state) { - struct acpi_namespace_node *target_node; - struct acpi_namespace_node *alias_node; - acpi_status status = AE_OK; - - - ACPI_FUNCTION_TRACE ("ex_create_alias"); + struct acpi_namespace_node *target_node; + struct acpi_namespace_node *alias_node; + acpi_status status = AE_OK; + ACPI_FUNCTION_TRACE("ex_create_alias"); /* Get the source/alias operands (both namespace nodes) */ - alias_node = (struct acpi_namespace_node *) walk_state->operands[0]; - target_node = (struct acpi_namespace_node *) walk_state->operands[1]; + alias_node = (struct acpi_namespace_node *)walk_state->operands[0]; + target_node = (struct acpi_namespace_node *)walk_state->operands[1]; if ((target_node->type == ACPI_TYPE_LOCAL_ALIAS) || - (target_node->type == ACPI_TYPE_LOCAL_METHOD_ALIAS)) { + (target_node->type == ACPI_TYPE_LOCAL_METHOD_ALIAS)) { /* * Dereference an existing alias so that we don't create a chain * of aliases. With this code, we guarantee that an alias is * always exactly one level of indirection away from the * actual aliased name. */ - target_node = ACPI_CAST_PTR (struct acpi_namespace_node, target_node->object); + target_node = + ACPI_CAST_PTR(struct acpi_namespace_node, + target_node->object); } /* @@ -115,7 +109,8 @@ acpi_ex_create_alias ( * types, the object can change dynamically via a Store. */ alias_node->type = ACPI_TYPE_LOCAL_ALIAS; - alias_node->object = ACPI_CAST_PTR (union acpi_operand_object, target_node); + alias_node->object = + ACPI_CAST_PTR(union acpi_operand_object, target_node); break; case ACPI_TYPE_METHOD: @@ -126,7 +121,8 @@ acpi_ex_create_alias ( * types, the object can change dynamically via a Store. */ alias_node->type = ACPI_TYPE_LOCAL_METHOD_ALIAS; - alias_node->object = ACPI_CAST_PTR (union acpi_operand_object, target_node); + alias_node->object = + ACPI_CAST_PTR(union acpi_operand_object, target_node); break; default: @@ -139,17 +135,18 @@ acpi_ex_create_alias ( * additional reference to prevent deletion out from under either the * target node or the alias Node */ - status = acpi_ns_attach_object (alias_node, - acpi_ns_get_attached_object (target_node), target_node->type); + status = acpi_ns_attach_object(alias_node, + acpi_ns_get_attached_object + (target_node), + target_node->type); break; } /* Since both operands are Nodes, we don't need to delete them */ - return_ACPI_STATUS (status); + return_ACPI_STATUS(status); } - /******************************************************************************* * * FUNCTION: acpi_ex_create_event @@ -162,18 +159,14 @@ acpi_ex_create_alias ( * ******************************************************************************/ -acpi_status -acpi_ex_create_event ( - struct acpi_walk_state *walk_state) +acpi_status acpi_ex_create_event(struct acpi_walk_state *walk_state) { - acpi_status status; - union acpi_operand_object *obj_desc; - - - ACPI_FUNCTION_TRACE ("ex_create_event"); + acpi_status status; + union acpi_operand_object *obj_desc; + ACPI_FUNCTION_TRACE("ex_create_event"); - obj_desc = acpi_ut_create_internal_object (ACPI_TYPE_EVENT); + obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_EVENT); if (!obj_desc) { status = AE_NO_MEMORY; goto cleanup; @@ -183,27 +176,27 @@ acpi_ex_create_event ( * Create the actual OS semaphore, with zero initial units -- meaning * that the event is created in an unsignalled state */ - status = acpi_os_create_semaphore (ACPI_NO_UNIT_LIMIT, 0, - &obj_desc->event.semaphore); - if (ACPI_FAILURE (status)) { + status = acpi_os_create_semaphore(ACPI_NO_UNIT_LIMIT, 0, + &obj_desc->event.semaphore); + if (ACPI_FAILURE(status)) { goto cleanup; } /* Attach object to the Node */ - status = acpi_ns_attach_object ((struct acpi_namespace_node *) walk_state->operands[0], - obj_desc, ACPI_TYPE_EVENT); + status = + acpi_ns_attach_object((struct acpi_namespace_node *)walk_state-> + operands[0], obj_desc, ACPI_TYPE_EVENT); -cleanup: + cleanup: /* * Remove local reference to the object (on error, will cause deletion * of both object and semaphore if present.) */ - acpi_ut_remove_reference (obj_desc); - return_ACPI_STATUS (status); + acpi_ut_remove_reference(obj_desc); + return_ACPI_STATUS(status); } - /******************************************************************************* * * FUNCTION: acpi_ex_create_mutex @@ -218,20 +211,16 @@ cleanup: * ******************************************************************************/ -acpi_status -acpi_ex_create_mutex ( - struct acpi_walk_state *walk_state) +acpi_status acpi_ex_create_mutex(struct acpi_walk_state *walk_state) { - acpi_status status = AE_OK; - union acpi_operand_object *obj_desc; - - - ACPI_FUNCTION_TRACE_PTR ("ex_create_mutex", ACPI_WALK_OPERANDS); + acpi_status status = AE_OK; + union acpi_operand_object *obj_desc; + ACPI_FUNCTION_TRACE_PTR("ex_create_mutex", ACPI_WALK_OPERANDS); /* Create the new mutex object */ - obj_desc = acpi_ut_create_internal_object (ACPI_TYPE_MUTEX); + obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_MUTEX); if (!obj_desc) { status = AE_NO_MEMORY; goto cleanup; @@ -242,30 +231,30 @@ acpi_ex_create_mutex ( * One unit max to make it a mutex, with one initial unit to allow * the mutex to be acquired. */ - status = acpi_os_create_semaphore (1, 1, &obj_desc->mutex.semaphore); - if (ACPI_FAILURE (status)) { + status = acpi_os_create_semaphore(1, 1, &obj_desc->mutex.semaphore); + if (ACPI_FAILURE(status)) { goto cleanup; } /* Init object and attach to NS node */ - obj_desc->mutex.sync_level = (u8) walk_state->operands[1]->integer.value; - obj_desc->mutex.node = (struct acpi_namespace_node *) walk_state->operands[0]; - - status = acpi_ns_attach_object (obj_desc->mutex.node, - obj_desc, ACPI_TYPE_MUTEX); + obj_desc->mutex.sync_level = + (u8) walk_state->operands[1]->integer.value; + obj_desc->mutex.node = + (struct acpi_namespace_node *)walk_state->operands[0]; + status = acpi_ns_attach_object(obj_desc->mutex.node, + obj_desc, ACPI_TYPE_MUTEX); -cleanup: + cleanup: /* * Remove local reference to the object (on error, will cause deletion * of both object and semaphore if present.) */ - acpi_ut_remove_reference (obj_desc); - return_ACPI_STATUS (status); + acpi_ut_remove_reference(obj_desc); + return_ACPI_STATUS(status); } - /******************************************************************************* * * FUNCTION: acpi_ex_create_region @@ -282,20 +271,16 @@ cleanup: ******************************************************************************/ acpi_status -acpi_ex_create_region ( - u8 *aml_start, - u32 aml_length, - u8 region_space, - struct acpi_walk_state *walk_state) +acpi_ex_create_region(u8 * aml_start, + u32 aml_length, + u8 region_space, struct acpi_walk_state *walk_state) { - acpi_status status; - union acpi_operand_object *obj_desc; - struct acpi_namespace_node *node; - union acpi_operand_object *region_obj2; - - - ACPI_FUNCTION_TRACE ("ex_create_region"); + acpi_status status; + union acpi_operand_object *obj_desc; + struct acpi_namespace_node *node; + union acpi_operand_object *region_obj2; + ACPI_FUNCTION_TRACE("ex_create_region"); /* Get the Namespace Node */ @@ -305,8 +290,8 @@ acpi_ex_create_region ( * If the region object is already attached to this node, * just return */ - if (acpi_ns_get_attached_object (node)) { - return_ACPI_STATUS (AE_OK); + if (acpi_ns_get_attached_object(node)) { + return_ACPI_STATUS(AE_OK); } /* @@ -314,17 +299,18 @@ acpi_ex_create_region ( * range */ if ((region_space >= ACPI_NUM_PREDEFINED_REGIONS) && - (region_space < ACPI_USER_REGION_BEGIN)) { - ACPI_REPORT_ERROR (("Invalid address_space type %X\n", region_space)); - return_ACPI_STATUS (AE_AML_INVALID_SPACE_ID); + (region_space < ACPI_USER_REGION_BEGIN)) { + ACPI_REPORT_ERROR(("Invalid address_space type %X\n", + region_space)); + return_ACPI_STATUS(AE_AML_INVALID_SPACE_ID); } - ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "Region Type - %s (%X)\n", - acpi_ut_get_region_name (region_space), region_space)); + ACPI_DEBUG_PRINT((ACPI_DB_LOAD, "Region Type - %s (%X)\n", + acpi_ut_get_region_name(region_space), region_space)); /* Create the region descriptor */ - obj_desc = acpi_ut_create_internal_object (ACPI_TYPE_REGION); + obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_REGION); if (!obj_desc) { status = AE_NO_MEMORY; goto cleanup; @@ -334,7 +320,7 @@ acpi_ex_create_region ( * Remember location in AML stream of address & length * operands since they need to be evaluated at run time. */ - region_obj2 = obj_desc->common.next_object; + region_obj2 = obj_desc->common.next_object; region_obj2->extra.aml_start = aml_start; region_obj2->extra.aml_length = aml_length; @@ -343,22 +329,20 @@ acpi_ex_create_region ( obj_desc->region.space_id = region_space; obj_desc->region.address = 0; obj_desc->region.length = 0; - obj_desc->region.node = node; + obj_desc->region.node = node; /* Install the new region object in the parent Node */ - status = acpi_ns_attach_object (node, obj_desc, ACPI_TYPE_REGION); + status = acpi_ns_attach_object(node, obj_desc, ACPI_TYPE_REGION); - -cleanup: + cleanup: /* Remove local reference to the object */ - acpi_ut_remove_reference (obj_desc); - return_ACPI_STATUS (status); + acpi_ut_remove_reference(obj_desc); + return_ACPI_STATUS(status); } - /******************************************************************************* * * FUNCTION: acpi_ex_create_table_region @@ -371,20 +355,16 @@ cleanup: * ******************************************************************************/ -acpi_status -acpi_ex_create_table_region ( - struct acpi_walk_state *walk_state) +acpi_status acpi_ex_create_table_region(struct acpi_walk_state *walk_state) { - acpi_status status; - union acpi_operand_object **operand = &walk_state->operands[0]; - union acpi_operand_object *obj_desc; - struct acpi_namespace_node *node; - struct acpi_table_header *table; - union acpi_operand_object *region_obj2; - - - ACPI_FUNCTION_TRACE ("ex_create_table_region"); + acpi_status status; + union acpi_operand_object **operand = &walk_state->operands[0]; + union acpi_operand_object *obj_desc; + struct acpi_namespace_node *node; + struct acpi_table_header *table; + union acpi_operand_object *region_obj2; + ACPI_FUNCTION_TRACE("ex_create_table_region"); /* Get the Node from the object stack */ @@ -394,66 +374,64 @@ acpi_ex_create_table_region ( * If the region object is already attached to this node, * just return */ - if (acpi_ns_get_attached_object (node)) { - return_ACPI_STATUS (AE_OK); + if (acpi_ns_get_attached_object(node)) { + return_ACPI_STATUS(AE_OK); } /* Find the ACPI table */ - status = acpi_tb_find_table (operand[1]->string.pointer, - operand[2]->string.pointer, - operand[3]->string.pointer, &table); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); + status = acpi_tb_find_table(operand[1]->string.pointer, + operand[2]->string.pointer, + operand[3]->string.pointer, &table); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); } /* Create the region descriptor */ - obj_desc = acpi_ut_create_internal_object (ACPI_TYPE_REGION); + obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_REGION); if (!obj_desc) { - return_ACPI_STATUS (AE_NO_MEMORY); + return_ACPI_STATUS(AE_NO_MEMORY); } - region_obj2 = obj_desc->common.next_object; + region_obj2 = obj_desc->common.next_object; region_obj2->extra.region_context = NULL; /* Init the region from the operands */ obj_desc->region.space_id = REGION_DATA_TABLE; - obj_desc->region.address = (acpi_physical_address) ACPI_TO_INTEGER (table); + obj_desc->region.address = + (acpi_physical_address) ACPI_TO_INTEGER(table); obj_desc->region.length = table->length; - obj_desc->region.node = node; - obj_desc->region.flags = AOPOBJ_DATA_VALID; + obj_desc->region.node = node; + obj_desc->region.flags = AOPOBJ_DATA_VALID; /* Install the new region object in the parent Node */ - status = acpi_ns_attach_object (node, obj_desc, ACPI_TYPE_REGION); - if (ACPI_FAILURE (status)) { + status = acpi_ns_attach_object(node, obj_desc, ACPI_TYPE_REGION); + if (ACPI_FAILURE(status)) { goto cleanup; } - status = acpi_ev_initialize_region (obj_desc, FALSE); - if (ACPI_FAILURE (status)) { + status = acpi_ev_initialize_region(obj_desc, FALSE); + if (ACPI_FAILURE(status)) { if (status == AE_NOT_EXIST) { status = AE_OK; - } - else { + } else { goto cleanup; } } obj_desc->region.flags |= AOPOBJ_SETUP_COMPLETE; - -cleanup: + cleanup: /* Remove local reference to the object */ - acpi_ut_remove_reference (obj_desc); - return_ACPI_STATUS (status); + acpi_ut_remove_reference(obj_desc); + return_ACPI_STATUS(status); } - /******************************************************************************* * * FUNCTION: acpi_ex_create_processor @@ -468,43 +446,39 @@ cleanup: * ******************************************************************************/ -acpi_status -acpi_ex_create_processor ( - struct acpi_walk_state *walk_state) +acpi_status acpi_ex_create_processor(struct acpi_walk_state *walk_state) { - union acpi_operand_object **operand = &walk_state->operands[0]; - union acpi_operand_object *obj_desc; - acpi_status status; - - - ACPI_FUNCTION_TRACE_PTR ("ex_create_processor", walk_state); + union acpi_operand_object **operand = &walk_state->operands[0]; + union acpi_operand_object *obj_desc; + acpi_status status; + ACPI_FUNCTION_TRACE_PTR("ex_create_processor", walk_state); /* Create the processor object */ - obj_desc = acpi_ut_create_internal_object (ACPI_TYPE_PROCESSOR); + obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_PROCESSOR); if (!obj_desc) { - return_ACPI_STATUS (AE_NO_MEMORY); + return_ACPI_STATUS(AE_NO_MEMORY); } /* Initialize the processor object from the operands */ - obj_desc->processor.proc_id = (u8) operand[1]->integer.value; - obj_desc->processor.address = (acpi_io_address) operand[2]->integer.value; - obj_desc->processor.length = (u8) operand[3]->integer.value; + obj_desc->processor.proc_id = (u8) operand[1]->integer.value; + obj_desc->processor.address = + (acpi_io_address) operand[2]->integer.value; + obj_desc->processor.length = (u8) operand[3]->integer.value; /* Install the processor object in the parent Node */ - status = acpi_ns_attach_object ((struct acpi_namespace_node *) operand[0], - obj_desc, ACPI_TYPE_PROCESSOR); + status = acpi_ns_attach_object((struct acpi_namespace_node *)operand[0], + obj_desc, ACPI_TYPE_PROCESSOR); /* Remove local reference to the object */ - acpi_ut_remove_reference (obj_desc); - return_ACPI_STATUS (status); + acpi_ut_remove_reference(obj_desc); + return_ACPI_STATUS(status); } - /******************************************************************************* * * FUNCTION: acpi_ex_create_power_resource @@ -519,43 +493,39 @@ acpi_ex_create_processor ( * ******************************************************************************/ -acpi_status -acpi_ex_create_power_resource ( - struct acpi_walk_state *walk_state) +acpi_status acpi_ex_create_power_resource(struct acpi_walk_state *walk_state) { - union acpi_operand_object **operand = &walk_state->operands[0]; - acpi_status status; - union acpi_operand_object *obj_desc; - - - ACPI_FUNCTION_TRACE_PTR ("ex_create_power_resource", walk_state); + union acpi_operand_object **operand = &walk_state->operands[0]; + acpi_status status; + union acpi_operand_object *obj_desc; + ACPI_FUNCTION_TRACE_PTR("ex_create_power_resource", walk_state); /* Create the power resource object */ - obj_desc = acpi_ut_create_internal_object (ACPI_TYPE_POWER); + obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_POWER); if (!obj_desc) { - return_ACPI_STATUS (AE_NO_MEMORY); + return_ACPI_STATUS(AE_NO_MEMORY); } /* Initialize the power object from the operands */ obj_desc->power_resource.system_level = (u8) operand[1]->integer.value; - obj_desc->power_resource.resource_order = (u16) operand[2]->integer.value; + obj_desc->power_resource.resource_order = + (u16) operand[2]->integer.value; /* Install the power resource object in the parent Node */ - status = acpi_ns_attach_object ((struct acpi_namespace_node *) operand[0], - obj_desc, ACPI_TYPE_POWER); + status = acpi_ns_attach_object((struct acpi_namespace_node *)operand[0], + obj_desc, ACPI_TYPE_POWER); /* Remove local reference to the object */ - acpi_ut_remove_reference (obj_desc); - return_ACPI_STATUS (status); + acpi_ut_remove_reference(obj_desc); + return_ACPI_STATUS(status); } #endif - /******************************************************************************* * * FUNCTION: acpi_ex_create_method @@ -571,25 +541,21 @@ acpi_ex_create_power_resource ( ******************************************************************************/ acpi_status -acpi_ex_create_method ( - u8 *aml_start, - u32 aml_length, - struct acpi_walk_state *walk_state) +acpi_ex_create_method(u8 * aml_start, + u32 aml_length, struct acpi_walk_state *walk_state) { - union acpi_operand_object **operand = &walk_state->operands[0]; - union acpi_operand_object *obj_desc; - acpi_status status; - u8 method_flags; - - - ACPI_FUNCTION_TRACE_PTR ("ex_create_method", walk_state); + union acpi_operand_object **operand = &walk_state->operands[0]; + union acpi_operand_object *obj_desc; + acpi_status status; + u8 method_flags; + ACPI_FUNCTION_TRACE_PTR("ex_create_method", walk_state); /* Create a new method object */ - obj_desc = acpi_ut_create_internal_object (ACPI_TYPE_METHOD); + obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_METHOD); if (!obj_desc) { - return_ACPI_STATUS (AE_NO_MEMORY); + return_ACPI_STATUS(AE_NO_MEMORY); } /* Save the method's AML pointer and length */ @@ -603,8 +569,10 @@ acpi_ex_create_method ( */ method_flags = (u8) operand[1]->integer.value; - obj_desc->method.method_flags = (u8) (method_flags & ~AML_METHOD_ARG_COUNT); - obj_desc->method.param_count = (u8) (method_flags & AML_METHOD_ARG_COUNT); + obj_desc->method.method_flags = + (u8) (method_flags & ~AML_METHOD_ARG_COUNT); + obj_desc->method.param_count = + (u8) (method_flags & AML_METHOD_ARG_COUNT); /* * Get the concurrency count. If required, a semaphore will be @@ -613,32 +581,28 @@ acpi_ex_create_method ( if (acpi_gbl_all_methods_serialized) { obj_desc->method.concurrency = 1; obj_desc->method.method_flags |= AML_METHOD_SERIALIZED; - } - else if (method_flags & AML_METHOD_SERIALIZED) { + } else if (method_flags & AML_METHOD_SERIALIZED) { /* * ACPI 1.0: Concurrency = 1 * ACPI 2.0: Concurrency = (sync_level (in method declaration) + 1) */ obj_desc->method.concurrency = (u8) - (((method_flags & AML_METHOD_SYNCH_LEVEL) >> 4) + 1); - } - else { + (((method_flags & AML_METHOD_SYNCH_LEVEL) >> 4) + 1); + } else { obj_desc->method.concurrency = ACPI_INFINITE_CONCURRENCY; } /* Attach the new object to the method Node */ - status = acpi_ns_attach_object ((struct acpi_namespace_node *) operand[0], - obj_desc, ACPI_TYPE_METHOD); + status = acpi_ns_attach_object((struct acpi_namespace_node *)operand[0], + obj_desc, ACPI_TYPE_METHOD); /* Remove local reference to the object */ - acpi_ut_remove_reference (obj_desc); + acpi_ut_remove_reference(obj_desc); /* Remove a reference to the operand */ - acpi_ut_remove_reference (operand[1]); - return_ACPI_STATUS (status); + acpi_ut_remove_reference(operand[1]); + return_ACPI_STATUS(status); } - - |