Enabled --update flag for differential flashing

Note that this is based on an earlier state of the project, and the
terms used in this schema may differ from the current state of the project.

software/flash.sh

@@ -41,7 +41,7 @@ flash_via_picotool()
     local device="${bus_device[1]//[!0-9]/}"
     echo "Found RP2 with serial $serial on Bus $bus Device $device"
     
-    picotool load --bus "$bus" --address "$device" "$IMAGEFILE"
+    picotool load --update --bus "$bus" --address "$device" "$IMAGEFILE"
 }
 
 FLASH_VIA_MOUNTPOINT=0

software/src/main.py

@@ -10,6 +10,8 @@ import network
 import os
 import time
 from math import pi, sin, pow
+import ubinascii
+from microdot import Microdot
 
 # Own modules
 import app
@@ -19,6 +21,7 @@ from mp3player import MP3Player
 from nfc import Nfc
 from rp2_neopixel import NeoPixel
 from utils import BTreeFileManager, Buttons, SDContext, TimerManager
+from webserver import start_webserver
 
 try:
     import hwconfig
@@ -63,6 +66,16 @@ def setup_wifi():
     wlan.config(ssid=f"TonberryPicoAP_{machine.unique_id().hex()}", security=wlan.SEC_OPEN)
     wlan.active(True)
 
+    # disable power management
+    wlan.config(pm=network.WLAN.PM_NONE)
+
+    mac = ubinascii.hexlify(network.WLAN().config('mac'), ':').decode()
+    print(f"     mac: {mac}")
+    print(f" channel: {wlan.config('channel')}")
+    print(f"   essid: {wlan.config('essid')}")
+    print(f" txpower: {wlan.config('txpower')}")
+    print(f"ifconfig: {wlan.ifconfig()}")
+
 
 DB_PATH = '/sd/tonberry.db'
 
@@ -75,7 +88,8 @@ def run():
 
     # Wifi with default config
     setup_wifi()
-
+    start_webserver()
+    
     # Setup MP3 player
     with SDContext(mosi=hwconfig.SD_DI, miso=hwconfig.SD_DO, sck=hwconfig.SD_SCK, ss=hwconfig.SD_CS,
                    baudrate=hwconfig.SD_CLOCKRATE):

software/src/microdot_test.py

@@ -1,38 +0,0 @@
-import rp2
-import network
-import ubinascii
-from microdot import Microdot
-
-rp2.country('DE')
-
-wlan = network.WLAN(network.AP_IF)
-wlan.config(ssid='TonberryPico', security=network.WLAN.SEC_OPEN)
-# Important: we cannot change the ip in station mode, otherwise dhcp won't work!
-# wlan.ipconfig(addr4='10.0.0.1')
-wlan.active(True)   # loads the firmware
-while wlan.active() is False:
-    pass
-wlan.config(pm=network.WLAN.PM_NONE)
-
-mac = ubinascii.hexlify(network.WLAN().config('mac'), ':').decode()
-print(f"     mac: {mac}")
-print(f" channel: {wlan.config('channel')}")
-print(f"   essid: {wlan.config('essid')}")
-print(f" txpower: {wlan.config('txpower')}")
-print(f"ifconfig: {wlan.ifconfig()}")
-
-app = Microdot()
-
-
-@app.route('/')
-async def index(request):
-    print("wohoo, a guest :)")
-    print(f"  app: {request.app}")
-    print(f"  client: {request.client_addr}")
-    print(f"  method: {request.method}")
-    print(f"  url: {request.url}")
-    print(f"  headers: {request.headers}")
-    print(f"  cookies: {request.cookies}")
-    return "TonberryPico says 'Hello World!'"
-
-app.run(port=80)

software/src/tonberry.schema.json

@@ -0,0 +1,53 @@
+{
+    "$schema": "http://json-schema.org/draft-07/schema#",
+    "definitions": {
+        "PlaybackPosition": {
+            "type": "object",
+            "properties": {
+                "position_seconds": { "type": "number" },
+                "device_uptime": { "type": "number" }
+            },
+            "required": ["position_seconds"]
+        },
+        "AudioFile": {
+            "type": "object",
+            "properties": {
+                "id": { "type": "string", "format": "uuid" },
+                "filename": { "type": "string" },
+                "size_bytes": { "type": "integer" },
+                "duration_seconds": { "type": "number" },
+                "last_played_uptime": { "type": "number" },
+                "playback_position": { "$ref": "#/definitions/PlaybackPosition" }
+            },
+            "required": ["id", "filename"]
+        },
+        "Playlist": {
+            "type": "object",
+            "properties": {
+                "id": { "type": "string", "format": "uuid" },
+                "name": { "type": "string" },
+                "audio_files": {
+                    "type": "array",
+                    "items": { "$ref": "#/definitions/AudioFile" }
+                },
+                "current_track_index": { "type": "integer", "minimum": 0 },
+                "last_played_uptime": { "type": "number" },
+                "playback_position": { "$ref": "#/definitions/PlaybackPosition" }
+            },
+            "required": ["id", "name", "audio_files"]
+        },
+        "NfcTag": {
+            "type": "object",
+            "properties": {
+                "uid": { "type": "string" },
+                "name": { "type": "string" },
+                "linked_type": {
+                    "type": "string",
+                    "enum": ["audio_file", "playlist"]
+                },
+                "linked_id": { "type": "string", "format": "uuid" }
+            },
+            "required": ["uid", "linked_type", "linked_id"]
+        }
+    }
+}

software/src/webserver.py

@@ -0,0 +1,37 @@
+'''
+SPDX-License-Identifier: MIT
+Copyright (c) 2024-2025 Stefan Kratochwil <Kratochwil-LA@gmx.de>
+'''
+
+import asyncio
+
+from microdot import Microdot
+
+webapp = Microdot()
+server = None
+
+def start_webserver():
+    server = asyncio.create_task(webapp.start_server(port=80))
+
+@webapp.route('/')
+async def index(request):
+    print("wohoo, a guest :)")
+    print(f"  app: {request.app}")
+    print(f"  client: {request.client_addr}")
+    print(f"  method: {request.method}")
+    print(f"  url: {request.url}")
+    print(f"  headers: {request.headers}")
+    print(f"  cookies: {request.cookies}")
+    return "TonberryPico says 'Hello World!'"
+
+
+@webapp.route('/v1/api/playback/control', methods=['POST'])
+async def playback_control(request):
+    if not request.json:
+        return {'success': False}
+
+    # Example:
+    # curl -H "Content-Type: application/json" --data '{"action": "play", "target_type": "audio_file", "target_id": "1234"}' http://192.168.4.1/v1/api/playback/control
+    print(f'Calling {request.json["action"]} on {request.json["target_type"]} with id \
+            {request.json["target_id"]}')
+