From: Mark Pearson <mpearson-lenovo@xxxxxxxxx> Lenovo trackpoints are adding the ability to generate a doubletap event. This handles the doubletap event and sends the KEY_PROG4 event to userspace. Despite the driver itself not using KEY_PROG1 - KEY_PROG3 this still uses KEY_PROG4 because of some keys being remapped to KEY_PROG1 - KEY_PROG3 by default by the upstream udev hwdb containing: evdev:name:ThinkPad Extra Buttons:dmi:bvn*:bvr*:bd*:svnLENOVO*:pn*:* ... KEYBOARD_KEY_17=prog1 KEYBOARD_KEY_1a=f20 # Microphone mute button KEYBOARD_KEY_45=bookmarks KEYBOARD_KEY_46=prog2 # Fn + PrtSc, on Windows: Snipping tool KEYBOARD_KEY_4a=prog3 # Fn + Right shift, on Windows: No idea Signed-off-by: Mark Pearson <mpearson-lenovo@xxxxxxxxx> Signed-off-by: Vishnu Sankar <vishnuocv@xxxxxxxxx> Link: https://lore.kernel.org/r/20240417173124.9953-2-mpearson-lenovo@xxxxxxxxx [hdegoede@xxxxxxxxxx: Adjust for switch to sparse-keymap keymaps] Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx> --- drivers/platform/x86/thinkpad_acpi.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index cd54a2455ac8..c7e2e85944ac 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -248,6 +248,9 @@ enum tpacpi_hkey_event_t { /* Misc */ TP_HKEY_EV_RFKILL_CHANGED = 0x7000, /* rfkill switch changed */ + + /* Misc2 */ + TP_HKEY_EV_TRACK_DOUBLETAP = 0x8036, /* trackpoint doubletap */ }; /**************************************************************************** @@ -3264,6 +3267,7 @@ static const struct key_entry keymap_lenovo[] __initconst = { * after switching to sparse keymap support. The mappings above use translated * scancodes to preserve uAPI compatibility, see tpacpi_input_send_key(). */ + { KE_KEY, TP_HKEY_EV_TRACK_DOUBLETAP /* 0x8036 */, { KEY_PROG4 } }, { KE_END } }; @@ -3812,6 +3816,17 @@ static bool hotkey_notify_6xxx(const u32 hkey, bool *send_acpi_ev) return true; } +static bool hotkey_notify_8xxx(const u32 hkey, bool *send_acpi_ev) +{ + switch (hkey) { + case TP_HKEY_EV_TRACK_DOUBLETAP: + tpacpi_input_send_key(hkey, send_acpi_ev); + return true; + default: + return false; + } +} + static void hotkey_notify(struct ibm_struct *ibm, u32 event) { u32 hkey; @@ -3888,6 +3903,10 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event) known_ev = true; } break; + case 8: + /* 0x8000-0x8FFF: misc2 */ + known_ev = hotkey_notify_8xxx(hkey, &send_acpi_ev); + break; } if (!known_ev) { pr_notice("unhandled HKEY event 0x%04x\n", hkey); -- 2.44.0
