From: Mark Pearson <mpearson-len...@squebb.ca>

The hotkey combination Fn + G can be used to disable the trackpoint
doubletap feature on Windows. Add matching functionality for Linux.

Signed-off-by: Mark Pearson <mpearson-len...@squebb.ca>
Signed-off-by: Vishnu Sankar <vishnu...@gmail.com>
Link: https://lore.kernel.org/r/20240417173124.9953-4-mpearson-len...@squebb.ca
[hdego...@redhat.com: Adjust for switch to sparse-keymap keymaps]
[hdego...@redhat.com: Do not log unknown event msg for doubletap when disabled]
Signed-off-by: Hans de Goede <hdego...@redhat.com>
---
 drivers/platform/x86/thinkpad_acpi.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/x86/thinkpad_acpi.c 
b/drivers/platform/x86/thinkpad_acpi.c
index dd8873d61126..7b9d48271d7d 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -183,6 +183,7 @@ enum tpacpi_hkey_event_t {
                                                   * directly in the 
sparse-keymap.
                                                   */
        TP_HKEY_EV_AMT_TOGGLE           = 0x131a, /* Toggle AMT on/off */
+       TP_HKEY_EV_DOUBLETAP_TOGGLE     = 0x131c, /* Toggle trackpoint 
doubletap on/off */
        TP_HKEY_EV_PROFILE_TOGGLE       = 0x131f, /* Toggle platform profile */
 
        /* Reasons for waking up from S3/S4 */
@@ -372,6 +373,7 @@ static struct {
        u32 hotkey_poll_active:1;
        u32 has_adaptive_kbd:1;
        u32 kbd_lang:1;
+       u32 trackpoint_doubletap:1;
        struct quirk_entry *quirks;
 } tp_features;
 
@@ -3523,6 +3525,9 @@ static int __init hotkey_init(struct ibm_init_struct 
*iibm)
 
        hotkey_poll_setup_safe(true);
 
+       /* Enable doubletap by default */
+       tp_features.trackpoint_doubletap = 1;
+
        return 0;
 }
 
@@ -3821,7 +3826,9 @@ 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);
+               if (tp_features.trackpoint_doubletap)
+                       tpacpi_input_send_key(hkey, send_acpi_ev);
+
                return true;
        default:
                return false;
@@ -11028,6 +11035,9 @@ static bool tpacpi_driver_event(const unsigned int 
hkey_event)
                else
                        dytc_control_amt(!dytc_amt_active);
 
+               return true;
+       case TP_HKEY_EV_DOUBLETAP_TOGGLE:
+               tp_features.trackpoint_doubletap = 
!tp_features.trackpoint_doubletap;
                return true;
        case TP_HKEY_EV_PROFILE_TOGGLE:
                platform_profile_cycle();
-- 
2.44.0



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