diff options
Diffstat (limited to 'drivers/acpi/utilities/utcopy.c')
| -rw-r--r-- | drivers/acpi/utilities/utcopy.c | 126 |
1 files changed, 91 insertions, 35 deletions
diff --git a/drivers/acpi/utilities/utcopy.c b/drivers/acpi/utilities/utcopy.c index 0fcd98bde0d1..11e884957162 100644 --- a/drivers/acpi/utilities/utcopy.c +++ b/drivers/acpi/utilities/utcopy.c @@ -49,21 +49,69 @@ #define _COMPONENT ACPI_UTILITIES ACPI_MODULE_NAME ("utcopy") +/* Local prototypes */ + +static acpi_status +acpi_ut_copy_isimple_to_esimple ( + union acpi_operand_object *internal_object, + union acpi_object *external_object, + u8 *data_space, + acpi_size *buffer_space_used); + +static acpi_status +acpi_ut_copy_ielement_to_ielement ( + u8 object_type, + union acpi_operand_object *source_object, + union acpi_generic_state *state, + void *context); + +static acpi_status +acpi_ut_copy_ipackage_to_epackage ( + union acpi_operand_object *internal_object, + u8 *buffer, + acpi_size *space_used); + +static acpi_status +acpi_ut_copy_esimple_to_isimple( + union acpi_object *user_obj, + union acpi_operand_object **return_obj); + +static acpi_status +acpi_ut_copy_simple_object ( + union acpi_operand_object *source_desc, + union acpi_operand_object *dest_desc); + +static acpi_status +acpi_ut_copy_ielement_to_eelement ( + u8 object_type, + union acpi_operand_object *source_object, + union acpi_generic_state *state, + void *context); + +static acpi_status +acpi_ut_copy_ipackage_to_ipackage ( + union acpi_operand_object *source_obj, + union acpi_operand_object *dest_obj, + struct acpi_walk_state *walk_state); + /******************************************************************************* * * FUNCTION: acpi_ut_copy_isimple_to_esimple * - * PARAMETERS: *internal_object - Pointer to the object we are examining - * *Buffer - Where the object is returned - * *space_used - Where the data length is returned + * PARAMETERS: internal_object - Source object to be copied + * external_object - Where to return the copied object + * data_space - Where object data is returned (such as + * buffer and string data) + * buffer_space_used - Length of data_space that was used * * RETURN: Status * - * DESCRIPTION: This function is called to place a simple object in a user - * buffer. + * DESCRIPTION: This function is called to copy a simple internal object to + * an external object. * - * The buffer is assumed to have sufficient space for the object. + * The data_space buffer is assumed to have sufficient space for + * the object. * ******************************************************************************/ @@ -107,10 +155,12 @@ acpi_ut_copy_isimple_to_esimple ( external_object->string.pointer = (char *) data_space; external_object->string.length = internal_object->string.length; - *buffer_space_used = ACPI_ROUND_UP_TO_NATIVE_WORD ((acpi_size) internal_object->string.length + 1); + *buffer_space_used = ACPI_ROUND_UP_TO_NATIVE_WORD ( + (acpi_size) internal_object->string.length + 1); - ACPI_MEMCPY ((void *) data_space, (void *) internal_object->string.pointer, - (acpi_size) internal_object->string.length + 1); + ACPI_MEMCPY ((void *) data_space, + (void *) internal_object->string.pointer, + (acpi_size) internal_object->string.length + 1); break; @@ -118,10 +168,12 @@ acpi_ut_copy_isimple_to_esimple ( external_object->buffer.pointer = data_space; external_object->buffer.length = internal_object->buffer.length; - *buffer_space_used = ACPI_ROUND_UP_TO_NATIVE_WORD (internal_object->string.length); + *buffer_space_used = ACPI_ROUND_UP_TO_NATIVE_WORD ( + internal_object->string.length); - ACPI_MEMCPY ((void *) data_space, (void *) internal_object->buffer.pointer, - internal_object->buffer.length); + ACPI_MEMCPY ((void *) data_space, + (void *) internal_object->buffer.pointer, + internal_object->buffer.length); break; @@ -194,7 +246,7 @@ acpi_ut_copy_isimple_to_esimple ( * ******************************************************************************/ -acpi_status +static acpi_status acpi_ut_copy_ielement_to_eelement ( u8 object_type, union acpi_operand_object *source_object, @@ -213,7 +265,7 @@ acpi_ut_copy_ielement_to_eelement ( this_index = state->pkg.index; target_object = (union acpi_object *) - &((union acpi_object *)(state->pkg.dest_object))->package.elements[this_index]; + &((union acpi_object *)(state->pkg.dest_object))->package.elements[this_index]; switch (object_type) { case ACPI_COPY_TYPE_SIMPLE: @@ -236,7 +288,8 @@ acpi_ut_copy_ielement_to_eelement ( */ target_object->type = ACPI_TYPE_PACKAGE; target_object->package.count = source_object->package.count; - target_object->package.elements = ACPI_CAST_PTR (union acpi_object, info->free_space); + target_object->package.elements = + ACPI_CAST_PTR (union acpi_object, info->free_space); /* * Pass the new package object back to the package walk routine @@ -248,7 +301,8 @@ acpi_ut_copy_ielement_to_eelement ( * update the buffer length counter */ object_space = ACPI_ROUND_UP_TO_NATIVE_WORD ( - (acpi_size) target_object->package.count * sizeof (union acpi_object)); + (acpi_size) target_object->package.count * + sizeof (union acpi_object)); break; @@ -266,9 +320,9 @@ acpi_ut_copy_ielement_to_eelement ( * * FUNCTION: acpi_ut_copy_ipackage_to_epackage * - * PARAMETERS: *internal_object - Pointer to the object we are returning - * *Buffer - Where the object is returned - * *space_used - Where the object length is returned + * PARAMETERS: internal_object - Pointer to the object we are returning + * Buffer - Where the object is returned + * space_used - Where the object length is returned * * RETURN: Status * @@ -304,13 +358,15 @@ acpi_ut_copy_ipackage_to_epackage ( * Free space begins right after the first package */ info.length = ACPI_ROUND_UP_TO_NATIVE_WORD (sizeof (union acpi_object)); - info.free_space = buffer + ACPI_ROUND_UP_TO_NATIVE_WORD (sizeof (union acpi_object)); + info.free_space = buffer + ACPI_ROUND_UP_TO_NATIVE_WORD ( + sizeof (union acpi_object)); info.object_space = 0; info.num_packages = 1; external_object->type = ACPI_GET_OBJECT_TYPE (internal_object); external_object->package.count = internal_object->package.count; - external_object->package.elements = ACPI_CAST_PTR (union acpi_object, info.free_space); + external_object->package.elements = ACPI_CAST_PTR (union acpi_object, + info.free_space); /* * Leave room for an array of ACPI_OBJECTS in the buffer @@ -333,8 +389,8 @@ acpi_ut_copy_ipackage_to_epackage ( * * FUNCTION: acpi_ut_copy_iobject_to_eobject * - * PARAMETERS: *internal_object - The internal object to be converted - * *buffer_ptr - Where the object is returned + * PARAMETERS: internal_object - The internal object to be converted + * buffer_ptr - Where the object is returned * * RETURN: Status * @@ -367,10 +423,10 @@ acpi_ut_copy_iobject_to_eobject ( * Build a simple object (no nested objects) */ status = acpi_ut_copy_isimple_to_esimple (internal_object, - (union acpi_object *) ret_buffer->pointer, - ((u8 *) ret_buffer->pointer + - ACPI_ROUND_UP_TO_NATIVE_WORD (sizeof (union acpi_object))), - &ret_buffer->length); + (union acpi_object *) ret_buffer->pointer, + ((u8 *) ret_buffer->pointer + + ACPI_ROUND_UP_TO_NATIVE_WORD (sizeof (union acpi_object))), + &ret_buffer->length); /* * build simple does not include the object size in the length * so we add it in here @@ -386,8 +442,8 @@ acpi_ut_copy_iobject_to_eobject ( * * FUNCTION: acpi_ut_copy_esimple_to_isimple * - * PARAMETERS: *external_object - The external object to be converted - * *internal_object - Where the internal object is returned + * PARAMETERS: external_object - The external object to be converted + * ret_internal_object - Where the internal object is returned * * RETURN: Status * @@ -398,7 +454,7 @@ acpi_ut_copy_iobject_to_eobject ( * ******************************************************************************/ -acpi_status +static acpi_status acpi_ut_copy_esimple_to_isimple ( union acpi_object *external_object, union acpi_operand_object **ret_internal_object) @@ -417,7 +473,8 @@ acpi_ut_copy_esimple_to_isimple ( case ACPI_TYPE_BUFFER: case ACPI_TYPE_INTEGER: - internal_object = acpi_ut_create_internal_object ((u8) external_object->type); + internal_object = acpi_ut_create_internal_object ( + (u8) external_object->type); if (!internal_object) { return_ACPI_STATUS (AE_NO_MEMORY); } @@ -486,7 +543,6 @@ error_exit: #ifdef ACPI_FUTURE_IMPLEMENTATION - /* Code to convert packages that are parameters to control methods */ /******************************************************************************* @@ -614,7 +670,7 @@ acpi_ut_copy_eobject_to_iobject ( * ******************************************************************************/ -acpi_status +static acpi_status acpi_ut_copy_simple_object ( union acpi_operand_object *source_desc, union acpi_operand_object *dest_desc) @@ -724,7 +780,7 @@ acpi_ut_copy_simple_object ( * ******************************************************************************/ -acpi_status +static acpi_status acpi_ut_copy_ielement_to_ielement ( u8 object_type, union acpi_operand_object *source_object, @@ -837,7 +893,7 @@ error_exit: * ******************************************************************************/ -acpi_status +static acpi_status acpi_ut_copy_ipackage_to_ipackage ( union acpi_operand_object *source_obj, union acpi_operand_object *dest_obj, |