Some Vaios come with both integrated and discrete graphics, plus a
switch for choosing one of the two. When the switch position is changed,
a notification is generated, now forwarded to userspace for example for
visual notifications, user scripts, and so on.
Signed-off-by: Marco Chiappero <marco@xxxxxxxxxx>
---
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -3118,6 +3118,14 @@ static void sony_nc_notify(struct acpi_d
dprintk("sony_nc_notify, event: 0x%.2x\n", event);
+ /* events codes list
+ * 1 Hotkeys
+ * 2 RFKILL
+ * 3 ALS
+ * 4 HDD protection
+ * 5 Hybrid GFX
+ */
+
/* handles related events */
if (event >= 0x90) {
unsigned int result = 0, handle = 0;
@@ -3169,6 +3177,23 @@ static void sony_nc_notify(struct acpi_d
/* hdd protection event, notify userspace */
break;
+ case 0x0128:
+ case 0x0146:
+ /* Hybrid GFX switching, 1 */
+ sony_call_snc_handle(handle, 0x0000, &result);
+ dprintk("sony_nc_notify, Hybrid GFX event received "
+ "(reason: %s)\n", (result & 0x01) ?
+ "switch position change" : "unknown");
+
+ /* verify the switch state
+ (1: discrete GFX, 0: integrated GFX)*/
+ result = 0;
+ sony_call_snc_handle(handle, 0x0100, &result);
+
+ ev = 5;
+ value = result & 0xff;
+ break;
+
default:
value = event;
dprintk("Unknowk event for handle: 0x%x\n", handle);
--
To unsubscribe from this list: send the line "unsubscribe platform-driver-x86" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
