ACPI: Add _PLD support
Add a simple helper function to allow drivers to obtain the physical
device location data.
Acked-by: Len Brown <len.brown@intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index c909984..b0d6282 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -51,6 +51,37 @@
struct acpi_object_list *arguments,
struct acpi_handle_list *list);
+struct acpi_pld {
+ unsigned int revision:7; /* 0 */
+ unsigned int ignore_colour:1; /* 7 */
+ unsigned int colour:24; /* 8 */
+ unsigned int width:16; /* 32 */
+ unsigned int height:16; /* 48 */
+ unsigned int user_visible:1; /* 64 */
+ unsigned int dock:1; /* 65 */
+ unsigned int lid:1; /* 66 */
+ unsigned int panel:3; /* 67 */
+ unsigned int vertical_pos:2; /* 70 */
+ unsigned int horizontal_pos:2; /* 72 */
+ unsigned int shape:4; /* 74 */
+ unsigned int group_orientation:1; /* 78 */
+ unsigned int group_token:8; /* 79 */
+ unsigned int group_position:8; /* 87 */
+ unsigned int bay:1; /* 95 */
+ unsigned int ejectable:1; /* 96 */
+ unsigned int ospm_eject_required:1; /* 97 */
+ unsigned int cabinet_number:8; /* 98 */
+ unsigned int card_cage_number:8; /* 106 */
+ unsigned int reference:1; /* 114 */
+ unsigned int rotation:4; /* 115 */
+ unsigned int order:5; /* 119 */
+ unsigned int reserved:4; /* 124 */
+ unsigned int vertical_offset:16; /* 128 */
+ unsigned int horizontal_offset:16; /* 144 */
+} __attribute__((__packed__));
+
+acpi_status
+acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld *pld);
#ifdef CONFIG_ACPI
#include <linux/proc_fs.h>