linux-kernel - [PATCH] Input: SoC button array: add mapping for airplane mode button

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Message-Id: <20231215171718.80229-1-wse@tuxedocomputers.com>
Date: Fri, 15 Dec 2023 18:17:18 +0100
From: Werner Sembach <wse@...edocomputers.com>
To: Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc: Christoffer Sandberg <cs@...edo.de>,
	Werner Sembach <wse@...edocomputers.com>,
	linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] Input: SoC button array: add mapping for airplane mode button

From: Christoffer Sandberg <cs@...edo.de>

This add a mapping for the airplane mode button on the TUXEDO Pulse Gen3.

While it is physically a key it behaves more like a switch, sending a key
down on first press and a key up on 2nd press. Therefor the switch event is
used here. Besides this behaviour it uses the HID usage-id 0xc6 (Wireless
Radio Button) and not 0xc8 (Wireless Radio Slider Switch), but since
neither 0xc6 nor 0xc8 are currently implemented at all in soc_button_array
this not to standard behaviour is not put behind a quirk for the moment.

Signed-off-by: Christoffer Sandberg <cs@...edo.de>
Signed-off-by: Werner Sembach <wse@...edocomputers.com>
---
 drivers/input/misc/soc_button_array.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/input/misc/soc_button_array.c b/drivers/input/misc/soc_button_array.c
index 08bcee3d6bcca..f6d060377d189 100644
--- a/drivers/input/misc/soc_button_array.c
+++ b/drivers/input/misc/soc_button_array.c
@@ -299,6 +299,11 @@ static int soc_button_parse_btn_desc(struct device *dev,
 		info->name = "power";
 		info->event_code = KEY_POWER;
 		info->wakeup = true;
+	} else if (upage == 0x01 && usage == 0xc6) {
+		info->name = "airplane mode switch";
+		info->event_type = EV_SW;
+		info->event_code = SW_RFKILL_ALL;
+		info->active_low = false;
 	} else if (upage == 0x01 && usage == 0xca) {
 		info->name = "rotation lock switch";
 		info->event_type = EV_SW;
-- 
2.34.1