add QAM button to GPD devices

Author: antheas

src/hhd/controller/base.py

@@ -250,6 +250,7 @@ def __init__(
         r3_to_share: bool = False,
         select_reboots: bool = False,
         nintendo_mode: bool = False,
+        qam_button: str | None = None,
     ) -> None:
         self.swap_guide = swap_guide
         self.trigger = trigger
@@ -258,7 +259,6 @@ def __init__(
         self.touchpad = touchpad
         self.status = status
         self.trigger_discrete_lvl = trigger_discrete_lvl
-        self.share_to_qam = share_to_qam
         self.touchpad_short = touchpad_short
         self.touchpad_hold = touchpad_hold
         self.touchpad_right = touchpad_right
@@ -273,6 +273,9 @@ def __init__(
         self.queue: list[tuple[Event | Literal["reboot"], float]] = []
         self.select_pressed = None
         self.select_is_held = False
+        self.qam_button = qam_button
+        if share_to_qam:
+            self.qam_button = "share"
 
         assert touchpad is None, "touchpad rewiring not supported yet"
 
@@ -445,7 +448,7 @@ def process(self, events: Sequence[Event]):
                             self.select_is_held = False
                             self.select_pressed = None
 
-                    if self.share_to_qam and ev["code"] == "share":
+                    if self.qam_button is not None and ev["code"] == self.qam_button:
                         if ev["value"]:
                             ev["code"] = "mode"
                             self.queue.append(

src/hhd/device/gpd/win/base.py

@@ -249,6 +249,14 @@ def controller_loop(conf: Config, should_exit: TEvent, updated: TEvent, dconf: d
         # btn_map={EC("KEY_SYSRQ"): "extra_l1", EC("KEY_PAUSE"): "extra_r1"},
     )
 
+    match conf["l4r4_to_qam"].to(str):
+        case "l4":
+            qam_button = "extra_l1"
+        case "r4":
+            qam_button = "extra_r1"
+        case _:
+            qam_button = None
+
     if has_touchpad:
         touch_actions = (
             conf["touchpad.controller"]
@@ -262,12 +270,14 @@ def controller_loop(conf: Config, should_exit: TEvent, updated: TEvent, dconf: d
             touchpad_short=touch_actions["short"].to(TouchpadAction),
             touchpad_hold=touch_actions["hold"].to(TouchpadAction),
             nintendo_mode=conf["nintendo_mode"].to(bool),
+            qam_button=qam_button,
         )
     else:
         multiplexer = Multiplexer(
             trigger="analog_to_discrete",
             dpad="analog_to_discrete",
             nintendo_mode=conf["nintendo_mode"].to(bool),
+            qam_button=qam_button,
         )
 
     REPORT_FREQ_MIN = 25

src/hhd/device/gpd/win/controllers.yml

@@ -40,6 +40,15 @@ children:
       Swaps A with B and X with Y.
     default: False
 
+  l4r4_to_qam:
+    type: multiple
+    title: Map L4/R4 to QAM.
+    options:
+      disabled: "Disabled"
+      l4: "L4"
+      r4: "R4"
+    default: disabled
+
   debug:
     type: bool
     title: Debug