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ACPI: Add _PLD support

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Add a simple helper function to allow drivers to obtain the physical
device location data.

Acked-by: Len Brown <[email protected]>
Signed-off-by: Matthew Garrett <[email protected]>
Signed-off-by: Lan Tianyu <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Matthew Garrett 2012-05-11 16:08:26 +08:00 • committed by Greg Kroah-Hartman
commit 38ac0f1b90
2 changed files with 61 additions and 0 deletions
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31
include/acpi/acpi_bus.h
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@ -51,6 +51,37 @@ acpi_evaluate_reference(acpi_handle handle,
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>