diff options
Diffstat (limited to 'drivers/acpi/executer/exresolv.c')
| -rw-r--r-- | drivers/acpi/executer/exresolv.c | 284 |
1 files changed, 136 insertions, 148 deletions
diff --git a/drivers/acpi/executer/exresolv.c b/drivers/acpi/executer/exresolv.c index 3de45672379a..97eecbd3242d 100644 --- a/drivers/acpi/executer/exresolv.c +++ b/drivers/acpi/executer/exresolv.c @@ -42,7 +42,6 @@ * POSSIBILITY OF SUCH DAMAGES. */ - #include <acpi/acpi.h> #include <acpi/amlcode.h> #include <acpi/acdispat.h> @@ -50,17 +49,13 @@ #include <acpi/acnamesp.h> #include <acpi/acparser.h> - #define _COMPONENT ACPI_EXECUTER - ACPI_MODULE_NAME ("exresolv") +ACPI_MODULE_NAME("exresolv") /* Local prototypes */ - static acpi_status -acpi_ex_resolve_object_to_value ( - union acpi_operand_object **stack_ptr, - struct acpi_walk_state *walk_state); - +acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr, + struct acpi_walk_state *walk_state); /******************************************************************************* * @@ -78,19 +73,16 @@ acpi_ex_resolve_object_to_value ( ******************************************************************************/ acpi_status -acpi_ex_resolve_to_value ( - union acpi_operand_object **stack_ptr, - struct acpi_walk_state *walk_state) +acpi_ex_resolve_to_value(union acpi_operand_object **stack_ptr, + struct acpi_walk_state *walk_state) { - acpi_status status; - - - ACPI_FUNCTION_TRACE_PTR ("ex_resolve_to_value", stack_ptr); + acpi_status status; + ACPI_FUNCTION_TRACE_PTR("ex_resolve_to_value", stack_ptr); if (!stack_ptr || !*stack_ptr) { - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Internal - null pointer\n")); - return_ACPI_STATUS (AE_AML_NO_OPERAND); + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Internal - null pointer\n")); + return_ACPI_STATUS(AE_AML_NO_OPERAND); } /* @@ -98,15 +90,16 @@ acpi_ex_resolve_to_value ( * 1) A valid union acpi_operand_object, or * 2) A struct acpi_namespace_node (named_obj) */ - if (ACPI_GET_DESCRIPTOR_TYPE (*stack_ptr) == ACPI_DESC_TYPE_OPERAND) { - status = acpi_ex_resolve_object_to_value (stack_ptr, walk_state); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); + if (ACPI_GET_DESCRIPTOR_TYPE(*stack_ptr) == ACPI_DESC_TYPE_OPERAND) { + status = acpi_ex_resolve_object_to_value(stack_ptr, walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); } if (!*stack_ptr) { - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Internal - null pointer\n")); - return_ACPI_STATUS (AE_AML_NO_OPERAND); + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Internal - null pointer\n")); + return_ACPI_STATUS(AE_AML_NO_OPERAND); } } @@ -114,20 +107,20 @@ acpi_ex_resolve_to_value ( * Object on the stack may have changed if acpi_ex_resolve_object_to_value() * was called (i.e., we can't use an _else_ here.) */ - if (ACPI_GET_DESCRIPTOR_TYPE (*stack_ptr) == ACPI_DESC_TYPE_NAMED) { - status = acpi_ex_resolve_node_to_value ( - ACPI_CAST_INDIRECT_PTR (struct acpi_namespace_node, stack_ptr), - walk_state); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); + if (ACPI_GET_DESCRIPTOR_TYPE(*stack_ptr) == ACPI_DESC_TYPE_NAMED) { + status = + acpi_ex_resolve_node_to_value(ACPI_CAST_INDIRECT_PTR + (struct acpi_namespace_node, + stack_ptr), walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); } } - ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Resolved object %p\n", *stack_ptr)); - return_ACPI_STATUS (AE_OK); + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Resolved object %p\n", *stack_ptr)); + return_ACPI_STATUS(AE_OK); } - /******************************************************************************* * * FUNCTION: acpi_ex_resolve_object_to_value @@ -143,25 +136,22 @@ acpi_ex_resolve_to_value ( ******************************************************************************/ static acpi_status -acpi_ex_resolve_object_to_value ( - union acpi_operand_object **stack_ptr, - struct acpi_walk_state *walk_state) +acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr, + struct acpi_walk_state *walk_state) { - acpi_status status = AE_OK; - union acpi_operand_object *stack_desc; - void *temp_node; - union acpi_operand_object *obj_desc; - u16 opcode; - - - ACPI_FUNCTION_TRACE ("ex_resolve_object_to_value"); + acpi_status status = AE_OK; + union acpi_operand_object *stack_desc; + void *temp_node; + union acpi_operand_object *obj_desc; + u16 opcode; + ACPI_FUNCTION_TRACE("ex_resolve_object_to_value"); stack_desc = *stack_ptr; /* This is an union acpi_operand_object */ - switch (ACPI_GET_OBJECT_TYPE (stack_desc)) { + switch (ACPI_GET_OBJECT_TYPE(stack_desc)) { case ACPI_TYPE_LOCAL_REFERENCE: opcode = stack_desc->reference.opcode; @@ -177,14 +167,13 @@ acpi_ex_resolve_object_to_value ( /* Delete the Reference Object */ - acpi_ut_remove_reference (stack_desc); + acpi_ut_remove_reference(stack_desc); /* Return the namespace node */ (*stack_ptr) = temp_node; break; - case AML_LOCAL_OP: case AML_ARG_OP: @@ -192,24 +181,28 @@ acpi_ex_resolve_object_to_value ( * Get the local from the method's state info * Note: this increments the local's object reference count */ - status = acpi_ds_method_data_get_value (opcode, - stack_desc->reference.offset, walk_state, &obj_desc); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); + status = acpi_ds_method_data_get_value(opcode, + stack_desc-> + reference.offset, + walk_state, + &obj_desc); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); } - ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[Arg/Local %X] value_obj is %p\n", - stack_desc->reference.offset, obj_desc)); + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "[Arg/Local %X] value_obj is %p\n", + stack_desc->reference.offset, + obj_desc)); /* * Now we can delete the original Reference Object and * replace it with the resolved value */ - acpi_ut_remove_reference (stack_desc); + acpi_ut_remove_reference(stack_desc); *stack_ptr = obj_desc; break; - case AML_INDEX_OP: switch (stack_desc->reference.target_type) { @@ -218,7 +211,6 @@ acpi_ex_resolve_object_to_value ( /* Just return - leave the Reference on the stack */ break; - case ACPI_TYPE_PACKAGE: obj_desc = *stack_desc->reference.where; @@ -228,36 +220,31 @@ acpi_ex_resolve_object_to_value ( * (i.e., dereference the package index) * Delete the ref object, increment the returned object */ - acpi_ut_remove_reference (stack_desc); - acpi_ut_add_reference (obj_desc); + acpi_ut_remove_reference(stack_desc); + acpi_ut_add_reference(obj_desc); *stack_ptr = obj_desc; - } - else { + } else { /* * A NULL object descriptor means an unitialized element of * the package, can't dereference it */ - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "Attempt to deref an Index to NULL pkg element Idx=%p\n", - stack_desc)); + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Attempt to deref an Index to NULL pkg element Idx=%p\n", + stack_desc)); status = AE_AML_UNINITIALIZED_ELEMENT; } break; - default: /* Invalid reference object */ - ACPI_REPORT_ERROR (( - "During resolve, Unknown target_type %X in Index/Reference obj %p\n", - stack_desc->reference.target_type, stack_desc)); + ACPI_REPORT_ERROR(("During resolve, Unknown target_type %X in Index/Reference obj %p\n", stack_desc->reference.target_type, stack_desc)); status = AE_AML_INTERNAL; break; } break; - case AML_REF_OF_OP: case AML_DEBUG_OP: case AML_LOAD_OP: @@ -266,60 +253,58 @@ acpi_ex_resolve_object_to_value ( break; - case AML_INT_NAMEPATH_OP: /* Reference to a named object */ + case AML_INT_NAMEPATH_OP: /* Reference to a named object */ /* Get the object pointed to by the namespace node */ *stack_ptr = (stack_desc->reference.node)->object; - acpi_ut_add_reference (*stack_ptr); - acpi_ut_remove_reference (stack_desc); + acpi_ut_add_reference(*stack_ptr); + acpi_ut_remove_reference(stack_desc); break; default: - ACPI_REPORT_ERROR (( - "During resolve, Unknown Reference opcode %X (%s) in %p\n", - opcode, acpi_ps_get_opcode_name (opcode), stack_desc)); + ACPI_REPORT_ERROR(("During resolve, Unknown Reference opcode %X (%s) in %p\n", opcode, acpi_ps_get_opcode_name(opcode), stack_desc)); status = AE_AML_INTERNAL; break; } break; - case ACPI_TYPE_BUFFER: - status = acpi_ds_get_buffer_arguments (stack_desc); + status = acpi_ds_get_buffer_arguments(stack_desc); break; - case ACPI_TYPE_PACKAGE: - status = acpi_ds_get_package_arguments (stack_desc); + status = acpi_ds_get_package_arguments(stack_desc); break; - - /* These cases may never happen here, but just in case.. */ + /* These cases may never happen here, but just in case.. */ case ACPI_TYPE_BUFFER_FIELD: case ACPI_TYPE_LOCAL_REGION_FIELD: case ACPI_TYPE_LOCAL_BANK_FIELD: case ACPI_TYPE_LOCAL_INDEX_FIELD: - ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "field_read source_desc=%p Type=%X\n", - stack_desc, ACPI_GET_OBJECT_TYPE (stack_desc))); + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "field_read source_desc=%p Type=%X\n", + stack_desc, + ACPI_GET_OBJECT_TYPE(stack_desc))); - status = acpi_ex_read_data_from_field (walk_state, stack_desc, &obj_desc); - *stack_ptr = (void *) obj_desc; + status = + acpi_ex_read_data_from_field(walk_state, stack_desc, + &obj_desc); + *stack_ptr = (void *)obj_desc; break; default: break; } - return_ACPI_STATUS (status); + return_ACPI_STATUS(status); } - /******************************************************************************* * * FUNCTION: acpi_ex_resolve_multiple @@ -337,42 +322,44 @@ acpi_ex_resolve_object_to_value ( ******************************************************************************/ acpi_status -acpi_ex_resolve_multiple ( - struct acpi_walk_state *walk_state, - union acpi_operand_object *operand, - acpi_object_type *return_type, - union acpi_operand_object **return_desc) +acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state, + union acpi_operand_object *operand, + acpi_object_type * return_type, + union acpi_operand_object **return_desc) { - union acpi_operand_object *obj_desc = (void *) operand; - struct acpi_namespace_node *node; - acpi_object_type type; - acpi_status status; - - - ACPI_FUNCTION_TRACE ("acpi_ex_resolve_multiple"); + union acpi_operand_object *obj_desc = (void *)operand; + struct acpi_namespace_node *node; + acpi_object_type type; + acpi_status status; + ACPI_FUNCTION_TRACE("acpi_ex_resolve_multiple"); /* Operand can be either a namespace node or an operand descriptor */ - switch (ACPI_GET_DESCRIPTOR_TYPE (obj_desc)) { + switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) { case ACPI_DESC_TYPE_OPERAND: type = obj_desc->common.type; break; case ACPI_DESC_TYPE_NAMED: - type = ((struct acpi_namespace_node *) obj_desc)->type; - obj_desc = acpi_ns_get_attached_object ((struct acpi_namespace_node *) obj_desc); + type = ((struct acpi_namespace_node *)obj_desc)->type; + obj_desc = + acpi_ns_get_attached_object((struct acpi_namespace_node *) + obj_desc); /* If we had an Alias node, use the attached object for type info */ if (type == ACPI_TYPE_LOCAL_ALIAS) { - type = ((struct acpi_namespace_node *) obj_desc)->type; - obj_desc = acpi_ns_get_attached_object ((struct acpi_namespace_node *) obj_desc); + type = ((struct acpi_namespace_node *)obj_desc)->type; + obj_desc = + acpi_ns_get_attached_object((struct + acpi_namespace_node *) + obj_desc); } break; default: - return_ACPI_STATUS (AE_AML_OPERAND_TYPE); + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); } /* If type is anything other than a reference, we are done */ @@ -387,7 +374,7 @@ acpi_ex_resolve_multiple ( * of the object_type and size_of operators). This means traversing * the list of possibly many nested references. */ - while (ACPI_GET_OBJECT_TYPE (obj_desc) == ACPI_TYPE_LOCAL_REFERENCE) { + while (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_REFERENCE) { switch (obj_desc->reference.opcode) { case AML_REF_OF_OP: @@ -397,31 +384,29 @@ acpi_ex_resolve_multiple ( /* All "References" point to a NS node */ - if (ACPI_GET_DESCRIPTOR_TYPE (node) != ACPI_DESC_TYPE_NAMED) { - ACPI_REPORT_ERROR (( - "acpi_ex_resolve_multiple: Not a NS node %p [%s]\n", - node, acpi_ut_get_descriptor_name (node))); - return_ACPI_STATUS (AE_AML_INTERNAL); + if (ACPI_GET_DESCRIPTOR_TYPE(node) != + ACPI_DESC_TYPE_NAMED) { + ACPI_REPORT_ERROR(("acpi_ex_resolve_multiple: Not a NS node %p [%s]\n", node, acpi_ut_get_descriptor_name(node))); + return_ACPI_STATUS(AE_AML_INTERNAL); } /* Get the attached object */ - obj_desc = acpi_ns_get_attached_object (node); + obj_desc = acpi_ns_get_attached_object(node); if (!obj_desc) { /* No object, use the NS node type */ - type = acpi_ns_get_type (node); + type = acpi_ns_get_type(node); goto exit; } /* Check for circular references */ if (obj_desc == operand) { - return_ACPI_STATUS (AE_AML_CIRCULAR_REFERENCE); + return_ACPI_STATUS(AE_AML_CIRCULAR_REFERENCE); } break; - case AML_INDEX_OP: /* Get the type of this reference (index into another object) */ @@ -442,12 +427,11 @@ acpi_ex_resolve_multiple ( if (!obj_desc) { /* NULL package elements are allowed */ - type = 0; /* Uninitialized */ + type = 0; /* Uninitialized */ goto exit; } break; - case AML_INT_NAMEPATH_OP: /* Dereference the reference pointer */ @@ -456,50 +440,61 @@ acpi_ex_resolve_multiple ( /* All "References" point to a NS node */ - if (ACPI_GET_DESCRIPTOR_TYPE (node) != ACPI_DESC_TYPE_NAMED) { - ACPI_REPORT_ERROR (( - "acpi_ex_resolve_multiple: Not a NS node %p [%s]\n", - node, acpi_ut_get_descriptor_name (node))); - return_ACPI_STATUS (AE_AML_INTERNAL); + if (ACPI_GET_DESCRIPTOR_TYPE(node) != + ACPI_DESC_TYPE_NAMED) { + ACPI_REPORT_ERROR(("acpi_ex_resolve_multiple: Not a NS node %p [%s]\n", node, acpi_ut_get_descriptor_name(node))); + return_ACPI_STATUS(AE_AML_INTERNAL); } /* Get the attached object */ - obj_desc = acpi_ns_get_attached_object (node); + obj_desc = acpi_ns_get_attached_object(node); if (!obj_desc) { /* No object, use the NS node type */ - type = acpi_ns_get_type (node); + type = acpi_ns_get_type(node); goto exit; } /* Check for circular references */ if (obj_desc == operand) { - return_ACPI_STATUS (AE_AML_CIRCULAR_REFERENCE); + return_ACPI_STATUS(AE_AML_CIRCULAR_REFERENCE); } break; - case AML_LOCAL_OP: case AML_ARG_OP: if (return_desc) { - status = acpi_ds_method_data_get_value (obj_desc->reference.opcode, - obj_desc->reference.offset, walk_state, &obj_desc); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); + status = + acpi_ds_method_data_get_value(obj_desc-> + reference. + opcode, + obj_desc-> + reference. + offset, + walk_state, + &obj_desc); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); } - acpi_ut_remove_reference (obj_desc); - } - else { - status = acpi_ds_method_data_get_node (obj_desc->reference.opcode, - obj_desc->reference.offset, walk_state, &node); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); + acpi_ut_remove_reference(obj_desc); + } else { + status = + acpi_ds_method_data_get_node(obj_desc-> + reference. + opcode, + obj_desc-> + reference. + offset, + walk_state, + &node); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); } - obj_desc = acpi_ns_get_attached_object (node); + obj_desc = acpi_ns_get_attached_object(node); if (!obj_desc) { type = ACPI_TYPE_ANY; goto exit; @@ -507,7 +502,6 @@ acpi_ex_resolve_multiple ( } break; - case AML_DEBUG_OP: /* The Debug Object is of type "debug_object" */ @@ -515,13 +509,10 @@ acpi_ex_resolve_multiple ( type = ACPI_TYPE_DEBUG_OBJECT; goto exit; - default: - ACPI_REPORT_ERROR (( - "acpi_ex_resolve_multiple: Unknown Reference subtype %X\n", - obj_desc->reference.opcode)); - return_ACPI_STATUS (AE_AML_INTERNAL); + ACPI_REPORT_ERROR(("acpi_ex_resolve_multiple: Unknown Reference subtype %X\n", obj_desc->reference.opcode)); + return_ACPI_STATUS(AE_AML_INTERNAL); } } @@ -529,10 +520,9 @@ acpi_ex_resolve_multiple ( * Now we are guaranteed to have an object that has not been created * via the ref_of or Index operators. */ - type = ACPI_GET_OBJECT_TYPE (obj_desc); + type = ACPI_GET_OBJECT_TYPE(obj_desc); - -exit: + exit: /* Convert internal types to external types */ switch (type) { @@ -559,7 +549,5 @@ exit: if (return_desc) { *return_desc = obj_desc; } - return_ACPI_STATUS (AE_OK); + return_ACPI_STATUS(AE_OK); } - - |