onboard audio: JMISC HPH wiring, UCM fix, update scripts for git deploy

scripts/start-synth.sh

@@ -1,17 +1,23 @@
 #!/bin/bash
 set -euo pipefail
 
-PD_DIR="/home/arduino/pd"
+REPO_DIR="/home/arduino/uno-q-audio-synth"
+PD_DIR="$REPO_DIR/pd"
 PATCH="$PD_DIR/synth.pd"
 MODE="usb"
 VERBOSE=false
 
+# Fallback to legacy path if REPO_DIR not cloned
+[ -d "$PD_DIR" ] || PD_DIR="/home/arduino/pd"
+PATCH="$PD_DIR/synth.pd"
+
 die() { echo "[ERROR] $*" >&2; exit 1; }
 info() { echo "[INFO] $*"; }
 
 while [ $# -gt 0 ]; do
     case "$1" in
         -a|--auto)     MODE="auto"; shift ;;
+        -o|--onboard) MODE="onboard"; shift ;;
         -i|--i2s)      MODE="i2s"; shift ;;
         -l|--loopback) MODE="loopback"; shift ;;
         -v|--verbose)  VERBOSE=true; shift ;;
@@ -30,53 +36,7 @@ fi
 
 # --- Auto-detect mode ---
 if [ "$MODE" = "auto" ]; then
-    if [ -f /run/usb-role ]; then
-        ROLE=$(cat /run/usb-role)
-    else
-        ROLE=$(/usr/local/bin/detect-usb-role.sh 2>/dev/null && cat /run/usb-role || echo "gadget")
-    fi
-
-    case "$ROLE" in
-        gadget)
-            MODE="usb"
-            if ! aplay -l 2>/dev/null | grep -q "UAC1Gadget"; then
-                info "Configuring USB gadget..."
-                /usr/local/bin/configure-usb-audio.sh start 2>/dev/null || true
-                sleep 1
-            fi
-            ;;
-        host)
-            if [ -f /run/usb-audio-dev ] && [ -s /run/usb-audio-dev ]; then
-                ALSA_DEV=$(cat /run/usb-audio-dev)
-            else
-                info "Detecting USB audio interface..."
-                /usr/local/bin/configure-usb-host.sh 2>/dev/null || {
-                    die "No USB audio interface found. Plug one in via hub."
-                }
-                ALSA_DEV=$(cat /run/usb-audio-dev)
-            fi
-            info "Mode: USB host (MIDI controller + USB audio interface)"
-            # MIDI handled by midi-bridge.service → UDP → Pd netreceive
-            AUDIO_OPTS=(-audiooutdev 4 -audioindev 4)
-            PD_ARGS=(
-                -nogui -alsa
-                -send "pd dsp 1"
-                "${AUDIO_OPTS[@]}"
-                -audiobuf 20 -blocksize 64 -r 48000
-                -channels 2 -inchannels 0 -outchannels 2
-                -path "$PD_DIR" "$PATCH"
-            )
-            if [ "$VERBOSE" = true ]; then pd "${PD_ARGS[@]}"
-            else pd "${PD_ARGS[@]}" > /dev/null 2>&1 &
-                 PID=$!; info "Pd started (PID: $PID)"; info "  Stop: kill $PID"
-            fi
-            exit 0
-            ;;
-        *)
-            info "Auto-detect: unknown role '$ROLE', falling back to gadget"
-            MODE="usb"
-            ;;
-    esac
+    MODE="onboard"
 fi
 
 # --- Configure per-mode options ---
@@ -93,19 +53,9 @@ if [ "$MODE" = "usb" ]; then
     fi
 fi
 
-if [ "$MODE" = "i2s" ]; then
-    if [ -f /run/i2s-audio-dev ] && [ -s /run/i2s-audio-dev ]; then
-        ALSA_DEV=$(cat /run/i2s-audio-dev)
-    else
-        for dev in "hw:I2S,0" "hw:MI2S,0" "hw:0,0"; do
-            if aplay -l 2>/dev/null | grep -qi "${dev%,*}"; then
-                ALSA_DEV="$dev"
-                break
-            fi
-        done
-    fi
-    info "Mode: I2S DAC (standalone analog audio)"
-    AUDIO_OPTS=(-audioadddev "$ALSA_DEV")
+if [ "$MODE" = "onboard" ] || [ "$MODE" = "i2s" ]; then
+    info "Mode: Onboard audio (PMIC headphone / line out on JMISC)"
+    AUDIO_OPTS=(-audiooutdev 0 -inchannels 0 -outchannels 1)
 fi
 
 if [ "$MODE" = "loopback" ]; then