Michael Smith
2142ed7629
New Python screen monitor uses Allwinner /dev/disp ioctls to turn off the display after 15s of no input and toggle it with a short power button press. Launched by the wrapper alongside sdlamp2. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
92 lines
3.0 KiB
Bash
Executable File
92 lines
3.0 KiB
Bash
Executable File
#!/bin/sh
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#
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# RG35XX Plus wrapper for sdlamp2
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#
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# Launched by dmenu_ln instead of sdlamp2 directly. Handles device-specific
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# concerns that don't belong in the player binary:
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# 1. Monitor power button and trigger clean shutdown
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# 2. Display the stock firmware's shutdown screen (goodbye.png → /dev/fb0)
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# 3. Screen idle timeout (off after 15s) and power button screen toggle
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# 4. Launch sdlamp2 as the main process
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#
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# Install: copy to /mnt/vendor/bin/rg35xx-wrapper.sh
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# Config: set CMD in dmenu_ln to point here instead of sdlamp2 directly
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SDLAMP2="/mnt/vendor/bin/sdlamp2"
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AUDIO_DIR="/mnt/sdcard/Music"
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SCREEN_MONITOR="/mnt/vendor/bin/rg35xx-screen-monitor.py"
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# --- WiFi hotspot ---
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# Deprioritized: connecting the device as a WiFi client to a shared network
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# works fine even when sdlamp2 replaces the stock menu. Hotspot/AP mode isn't
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# needed — SSH access works over the shared network.
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# --- Power button monitor ---
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# axp2202-pek on /dev/input/event0 sends KEY_POWER (code 116).
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# logind has HandlePowerKey=ignore, so we handle it here.
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POWER_EVENT_DEV="/dev/input/event0"
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monitor_power_button() {
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POWER_TIMER_PID=""
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evtest "$POWER_EVENT_DEV" 2>/dev/null | while read -r line; do
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case "$line" in
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*"code 116"*"value 1"*)
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# Power button pressed — start 3-second hold timer
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( trap 'exit 0' TERM; sleep 3; touch /tmp/.sdlamp2_shutdown; kill -TERM "$SDLAMP2_PID" 2>/dev/null ) &
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POWER_TIMER_PID=$!
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;;
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*"code 116"*"value 0"*)
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# Power button released — cancel timer if still running
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if [ -n "$POWER_TIMER_PID" ]; then
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kill "$POWER_TIMER_PID" 2>/dev/null
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wait "$POWER_TIMER_PID" 2>/dev/null
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POWER_TIMER_PID=""
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fi
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;;
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esac
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done
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}
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# --- Screen idle timeout + power button screen toggle ---
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python3 "$SCREEN_MONITOR" &
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SCREEN_MONITOR_PID=$!
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# --- Launch sdlamp2 ---
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# Run in background so we can capture PID for the power button monitor.
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"$SDLAMP2" "$AUDIO_DIR" &
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SDLAMP2_PID=$!
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monitor_power_button &
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MONITOR_PID=$!
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# Wait for sdlamp2 to finish (signal or normal exit).
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wait "$SDLAMP2_PID"
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SDLAMP2_EXIT=$?
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# --- Cleanup ---
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# Kill the screen monitor (SIGTERM restores brightness) and power button monitor.
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kill "$SCREEN_MONITOR_PID" 2>/dev/null
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wait "$SCREEN_MONITOR_PID" 2>/dev/null
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kill "$MONITOR_PID" 2>/dev/null
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# If this was a shutdown, call poweroff and block so the loadapp.sh restart
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# loop doesn't relaunch dmenu_ln (which would take over the framebuffer and
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# overwrite sdlamp2's shutdown screen).
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if [ -f /tmp/.sdlamp2_shutdown ]; then
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rm -f /tmp/.sdlamp2_shutdown
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# Display the stock firmware's shutdown screen via framebuffer.
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# goodbye.png is 640x480 RGB — exactly matches the display.
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# /dev/fb0 is 32bpp BGRA, so we swap R/B channels and write raw pixels.
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python3 -c "
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from PIL import Image
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img = Image.open('/mnt/vendor/res1/shutdown/goodbye.png').convert('RGBA')
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r, g, b, a = img.split()
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with open('/dev/fb0', 'wb') as f:
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f.write(Image.merge('RGBA', (b, g, r, a)).tobytes())
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" 2>/dev/null
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poweroff
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sleep 30
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fi
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exit "$SDLAMP2_EXIT"
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