Unverified Commit 4173edb0 authored by Hans de Goede's avatar Hans de Goede Committed by Ilpo Järvinen
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platform/x86: dell-wmi-base: Handle electronic privacy screen on/off events 



Add handling for events for the electronic privacy screen found on some
models (e.g. Dell Latitude 7300) being toggled on/off.

Emit KEY_EPRIVACY_SCREEN_OFF / KEY_EPRIVACY_SCREEN_ON events for this so
that userspace can show the usual on-screen-display (OSD) notification for
eprivacy screen on/off to the user.

Signed-off-by: default avatarHans de Goede <hansg@kernel.org>
Link: https://patch.msgid.link/20251020152331.52870-3-hansg@kernel.org


Reviewed-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
parent 8f3eaad9

drivers/platform/x86/dell/dell-wmi-base.c

+12 −0
Original line number Diff line number Diff line
@@ -365,6 +365,13 @@ static const struct key_entry dell_wmi_keymap_type_0012[] = { 
	/* Backlight brightness change event */

	{ KE_IGNORE, 0x0003, { KEY_RESERVED } },



	/*

	 * Electronic privacy screen toggled, extended data gives state,

	 * separate entries for on/off see handling in dell_wmi_process_key().

	 */

	{ KE_KEY, 0x000c, { KEY_EPRIVACY_SCREEN_OFF } },

	{ KE_KEY, 0x000c, { KEY_EPRIVACY_SCREEN_ON } },



	/* Ultra-performance mode switch request */

	{ KE_IGNORE, 0x000d, { KEY_RESERVED } },
@@ -435,6 +442,11 @@ static int dell_wmi_process_key(struct wmi_device *wdev, int type, int code, u16 
				      "Dell tablet mode switch",

				      SW_TABLET_MODE, !buffer[0]);

		return 1;

	} else if (type == 0x0012 && code == 0x000c && remaining > 0) {

		/* Eprivacy toggle, switch to "on" key entry for on events */

		if (buffer[0] == 2)

			key++;

		used = 1;

	} else if (type == 0x0012 && code == 0x000d && remaining > 0) {

		value = (buffer[2] == 2);

		used = 1;