wire up sound card and DAC from Whisplay board

client.py

@@ -8,6 +8,8 @@ import threading
 import signal
 import argparse
 
+import subprocess
+
 import RNS
 import LXMF
 from LXST.Primitives.Telephony import Telephone
@@ -68,6 +70,7 @@ class ChannelClient:
         self.board = None
         self.selected_index = 0
         self._press_time = 0.0
+        self._wm8960_device = None
         if use_whisplay and _WHISPLAY_AVAILABLE and _HAS_PIL:
             try:
                 self._init_whisplay()
@@ -155,6 +158,36 @@ class ChannelClient:
         if hasattr(self.board, "start_event_listener"):
             self.board.start_event_listener()
         self._load_fonts()
+        self._setup_whisplay_audio()
+
+    def _find_wm8960_card(self):
+        try:
+            with open("/proc/asound/cards") as f:
+                for line in f:
+                    if "wm8960" in line.lower():
+                        return line.split()[0]
+        except Exception:
+            return None
+        return None
+
+    def _setup_whisplay_audio(self):
+        card = self._find_wm8960_card()
+        if card is None:
+            RNS.log("Whisplay WM8960 sound card not found", RNS.LOG_WARNING)
+            return
+        mixer_cmds = [
+            ["amixer", "-c", card, "sset", "Left Output Mixer PCM", "on"],
+            ["amixer", "-c", card, "sset", "Right Output Mixer PCM", "on"],
+            ["amixer", "-c", card, "sset", "Speaker", "121"],
+            ["amixer", "-c", card, "sset", "Playback", "230"],
+        ]
+        for cmd in mixer_cmds:
+            try:
+                subprocess.run(cmd, check=False, capture_output=True, text=True)
+            except Exception:
+                pass
+        self._wm8960_device = f"plughw:{card},0"
+        RNS.log(f"Whisplay audio: WM8960 card {card} ready", RNS.LOG_DEBUG)
 
     def _load_fonts(self):
         def load(size, bold=False):
@@ -410,6 +443,10 @@ class ChannelClient:
     def _init_telephone(self):
         if self.telephone is None:
             self.telephone = Telephone(self.identity)
+            if self._wm8960_device:
+                self.telephone.set_speaker(self._wm8960_device)
+                self.telephone.set_microphone(self._wm8960_device)
+                self.telephone.set_ringer(self._wm8960_device)
             self.telephone.set_established_callback(self._on_call_established)
             self.telephone.set_ended_callback(self._on_call_ended)
             self.telephone.announce()