[PATCH 2/2] input: Add support for "Do Not Disturb"

[Aseda Aboagye <aaboagye@chromium.org>]

HUTRR94 added support for a new usage titled "System Do Not Disturb"
which toggles a system-wide Do Not Disturb setting. This commit simply
adds a new event code for the usage.

Signed-off-by: Aseda Aboagye <aaboagye@chromium.org>
---
 drivers/hid/hid-debug.c                |  1 +
 drivers/hid/hid-input.c                | 11 +++++++++++
 include/uapi/linux/input-event-codes.h |  2 ++
 3 files changed, 14 insertions(+)

diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c
index 7749c81b6227..78b2dd10cba2 100644
--- a/drivers/hid/hid-debug.c
+++ b/drivers/hid/hid-debug.c
@@ -975,6 +975,7 @@ static const char *keys[KEY_MAX + 1] = {
        [KEY_CAMERA_ACCESS_DISABLE] = "CameraAccessDisable",
        [KEY_CAMERA_ACCESS_TOGGLE] = "CameraAccessToggle",
        [KEY_ACCESSIBILITY] = "Accessibility",
+       [KEY_DONOTDISTURB] = "DoNotDisturb",
        [KEY_DICTATE] = "Dictate",
        [KEY_MICMUTE] = "MicrophoneMute",
        [KEY_BRIGHTNESS_MIN] = "BrightnessMin",
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 6d2dbb75ba65..7fda66f7b437 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -826,6 +826,17 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
                        break;
                }
 
+               if ((usage->hid & 0xf0) == 0x90) { /* SystemControl*/
+                       switch (usage->hid & 0xf) {
+                       case 0xb:
+                               map_key_clear(KEY_DONOTDISTURB);
+                               break;
+                       default:
+                               goto ignore;
+                       }
+                       break;
+               }
+
                if ((usage->hid & 0xf0) == 0xa0) {      /* SystemControl */
                        switch (usage->hid & 0xf) {
                        case 0x9: map_key_clear(KEY_MICMUTE); break;
diff --git a/include/uapi/linux/input-event-codes.h b/include/uapi/linux/input-event-codes.h
index 980ef7fefd2b..b8abc239d660 100644
--- a/include/uapi/linux/input-event-codes.h
+++ b/include/uapi/linux/input-event-codes.h
@@ -619,6 +619,8 @@
 #define KEY_CAMERA_ACCESS_TOGGLE       0x24d   /* Toggles the current state of the camera access control. (HUTRR72) */
 /* Toggles the system bound accessibility UI/command (HUTRR116) */
 #define KEY_ACCESSIBILITY              0x24e
+/* Toggles the system-wide "Do Not Disturb" control (HUTRR94)*/
+#define KEY_DONOTDISTURB               0x24f
 
 #define KEY_BRIGHTNESS_MIN             0x250   /* Set Brightness to Minimum */
 #define KEY_BRIGHTNESS_MAX             0x251   /* Set Brightness to Maximum */
-- 
2.45.1.288.g0e0cd299f1-goog