platform/x86: hp-wmi: Handle Omen Key event

Add support to map the "HP Omen Key" to KEY_PROG2. Laptops in the HP
Omen Series open the HP Omen Command Center application on windows. But,
on linux it fails with the following message from the hp-wmi driver:

[ 5143.415714] hp_wmi: Unknown event_id - 29 - 0x21a5

Also adds support to map Fn+Esc to KEY_FN_ESC. This currently throws the
following message on the hp-wmi driver:

[ 6082.143785] hp_wmi: Unknown key code - 0x21a7

There is also a "Win-Lock" key on HP Omen Laptops which supports
Enabling and Disabling the Windows key, which trigger commands 0x21a4
and 0x121a4 respectively, but I wasn't able to find any KEY in input.h
to map this to.

Signed-off-by: Rishit Bansal <rishitbansal0@gmail.com>
Link: https://lore.kernel.org/r/20230120221214.24426-1-rishitbansal0@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

diff --git a/drivers/platform/x86/hp/hp-wmi.c b/drivers/platform/x86/hp/hp-wmi.c
index 0a99058be81304c8e55e12410524a10a655b6c53..4a3851332ef2c08d4552b76d1fad6f746c2d0ebc 100644 (file)
--- a/drivers/platform/x86/hp/hp-wmi.c
+++ b/drivers/platform/x86/hp/hp-wmi.c
@@ -90,6 +90,7 @@ enum hp_wmi_event_ids {
        HPWMI_PEAKSHIFT_PERIOD          = 0x0F,
        HPWMI_BATTERY_CHARGE_PERIOD     = 0x10,
        HPWMI_SANITIZATION_MODE         = 0x17,
+       HPWMI_OMEN_KEY                  = 0x1D,
        HPWMI_SMART_EXPERIENCE_APP      = 0x21,
 };
 
@@ -216,6 +217,8 @@ static const struct key_entry hp_wmi_keymap[] = {
        { KE_KEY, 0x213b,  { KEY_INFO } },
        { KE_KEY, 0x2169,  { KEY_ROTATE_DISPLAY } },
        { KE_KEY, 0x216a,  { KEY_SETUP } },
+       { KE_KEY, 0x21a5,  { KEY_PROG2 } }, /* HP Omen Key */
+       { KE_KEY, 0x21a7,  { KEY_FN_ESC } },
        { KE_KEY, 0x21a9,  { KEY_TOUCHPAD_OFF } },
        { KE_KEY, 0x121a9, { KEY_TOUCHPAD_ON } },
        { KE_KEY, 0x231b,  { KEY_HELP } },
@@ -810,6 +813,7 @@ static void hp_wmi_notify(u32 value, void *context)
        case HPWMI_SMART_ADAPTER:
                break;
        case HPWMI_BEZEL_BUTTON:
+       case HPWMI_OMEN_KEY:
                key_code = hp_wmi_read_int(HPWMI_HOTKEY_QUERY);
                if (key_code < 0)
                        break;