disable lora while updating, show "Updating" on oled screen

proto

@@ -1 +1 @@
-Subproject commit b1aed06442025624841b2288fac273d9bc41c438
+Subproject commit 0cadaed3953f66cf1edc99d0fa53e4fd5ebf56d6

src/commands.h

@@ -9,6 +9,7 @@ enum class Cmd {
         SET_OFF,
         ON_PRESS,
         START_BLUETOOTH_PIN_SCREEN,
+        START_FIRMWARE_UPDATE_SCREEN,
         STOP_BLUETOOTH_PIN_SCREEN,
         STOP_BOOT_SCREEN,
         PRINT,

src/esp32/BluetoothSoftwareUpdate.cpp

@@ -7,6 +7,8 @@
 #include "configuration.h"
 #include "nimble/BluetoothUtil.h"
 #include "NodeDB.h"
+#include "../graphics/Screen.h"
+#include "../main.h"
 
 #include <CRC32.h>
 #include <Update.h>
@@ -47,8 +49,9 @@ int update_size_callback(uint16_t conn_handle, uint16_t attr_handle, struct ble_
             // void stopMeshBluetoothService();
             // stopMeshBluetoothService();
 
+            screen->startFirmwareUpdateScreen();
             if (RadioLibInterface::instance)
-                RadioLibInterface::instance->sleep(); // FIXME, nasty hack - the RF95 ISR/SPI code on ESP32 can fail while we are
+                RadioLibInterface::instance->disable(); // FIXME, nasty hack - the RF95 ISR/SPI code on ESP32 can fail while we are
                                                       // writing flash - shut the radio off during updates
         }
     }

src/graphics/Screen.cpp

@@ -164,6 +164,20 @@ static void drawFrameBluetooth(OLEDDisplay *display, OLEDDisplayUiState *state,
     display->drawString(64 + x, 48 + y, buf);
 }
 
+static void drawFrameFirmware(OLEDDisplay *display, OLEDDisplayUiState *state, int16_t x, int16_t y)
+{
+    display->setTextAlignment(TEXT_ALIGN_CENTER);
+    display->setFont(FONT_MEDIUM);
+    display->drawString(64 + x, y, "Updating");
+
+    display->setFont(FONT_SMALL);
+    display->drawString(64 + x, FONT_HEIGHT_SMALL + y + 2, "Please wait...");
+
+    //display->setFont(FONT_LARGE);
+    //display->drawString(64 + x, 26 + y, btPIN);
+}
+
+
 /// Draw the last text message we received
 static void drawCriticalFaultFrame(OLEDDisplay *display, OLEDDisplayUiState *state, int16_t x, int16_t y)
 {
@@ -798,6 +812,9 @@ int32_t Screen::runOnce()
         case Cmd::START_BLUETOOTH_PIN_SCREEN:
             handleStartBluetoothPinScreen(cmd.bluetooth_pin);
             break;
+        case Cmd::START_FIRMWARE_UPDATE_SCREEN:
+            handleStartFirmwareUpdateScreen();
+            break;            
         case Cmd::STOP_BLUETOOTH_PIN_SCREEN:
         case Cmd::STOP_BOOT_SCREEN:
             setFrames();
@@ -928,6 +945,18 @@ void Screen::handleStartBluetoothPinScreen(uint32_t pin)
     setFastFramerate();
 }
 
+void Screen::handleStartFirmwareUpdateScreen()
+{
+    DEBUG_MSG("showing firmware screen\n");
+    showingNormalScreen = false;
+
+    static FrameCallback btFrames[] = {drawFrameFirmware};
+
+    ui.disableAllIndicators();
+    ui.setFrames(btFrames, 1);
+    setFastFramerate();
+}
+
 void Screen::blink()
 {
     setFastFramerate();

src/graphics/Screen.h

@@ -128,6 +128,14 @@ class Screen : public concurrency::OSThread
         enqueueCmd(cmd);
     }
 
+    void startFirmwareUpdateScreen()
+    {
+        ScreenCmd cmd;
+        cmd.cmd = Cmd::START_FIRMWARE_UPDATE_SCREEN;
+        enqueueCmd(cmd);
+    }
+
+
     /// Stops showing the bluetooth PIN screen.
     void stopBluetoothPinScreen() { enqueueCmd(ScreenCmd{.cmd = Cmd::STOP_BLUETOOTH_PIN_SCREEN}); }
 
@@ -233,6 +241,7 @@ class Screen : public concurrency::OSThread
     void handleOnPress();
     void handleStartBluetoothPinScreen(uint32_t pin);
     void handlePrint(const char *text);
+    void handleStartFirmwareUpdateScreen();
 
     /// Rebuilds our list of frames (screens) to default ones.
     void setFrames();

src/mesh/MeshTypes.h

@@ -13,6 +13,7 @@ typedef uint32_t PacketId; // A packet sequence number
 #define ERRNO_OK 0
 #define ERRNO_NO_INTERFACES 33
 #define ERRNO_UNKNOWN 32 // pick something that doesn't conflict with RH_ROUTER_ERROR_UNABLE_TO_DELIVER
+#define ERRNO_DISABLED 34 // the itnerface is disabled
 
 /**
  * the max number of hops a message can pass through, used as the default max for hop_limit in MeshPacket.

src/mesh/RadioInterface.h

@@ -54,6 +54,8 @@ class RadioInterface
     uint32_t shortPacketMsec;
 
   protected:
+    bool disabled = false;
+
     float bw = 125;
     uint8_t sf = 9;
     uint8_t cr = 7;
@@ -98,6 +100,9 @@ class RadioInterface
     /// Prepare hardware for sleep.  Call this _only_ for deep sleep, not needed for light sleep.
     virtual bool sleep() { return true; }
 
+    /// Disable this interface (while disabled, no packets can be sent or received)
+    void disable() { disabled = true; sleep(); }
+
     /**
      * Send a packet (possibly by enquing in a private fifo).  This routine will
      * later free() the packet to pool.  This routine is not allowed to stall.

src/mesh/RadioLibInterface.cpp

@@ -2,8 +2,8 @@
 #include "MeshTypes.h"
 #include "NodeDB.h"
 #include "SPILock.h"
-#include "mesh-pb-constants.h"
 #include "error.h"
+#include "mesh-pb-constants.h"
 #include <configuration.h>
 #include <pb_decode.h>
 #include <pb_encode.h>
@@ -68,7 +68,6 @@ bool RadioLibInterface::canSendImmediately()
     bool busyTx = sendingPacket != NULL;
     bool busyRx = isReceiving && isActivelyReceiving();
 
-
     if (busyTx || busyRx) {
         if (busyTx)
             DEBUG_MSG("Can not send yet, busyTx\n");
@@ -94,6 +93,11 @@ bool RadioLibInterface::canSendImmediately()
 /// bluetooth comms code.  If the txmit queue is empty it might return an error
 ErrorCode RadioLibInterface::send(MeshPacket *p)
 {
+    if (disabled) {
+        packetPool.release(p);
+        return ERRNO_DISABLED;
+    }
+
     // Sometimes when testing it is useful to be able to never turn on the xmitter
 #ifndef LORA_DISABLE_SENDING
     printPacket("enqueuing for send", p);
@@ -119,7 +123,7 @@ ErrorCode RadioLibInterface::send(MeshPacket *p)
     return res;
 #else
     packetPool.release(p);
-    return ERRNO_UNKNOWN;
+    return ERRNO_DISABLED;
 #endif
 }
 
@@ -133,17 +137,17 @@ bool RadioLibInterface::canSleep()
 }
 
 /** Attempt to cancel a previously sent packet.  Returns true if a packet was found we could cancel */
-bool RadioLibInterface::cancelSending(NodeNum from, PacketId id) {
+bool RadioLibInterface::cancelSending(NodeNum from, PacketId id)
+{
     auto p = txQueue.remove(from, id);
     if (p)
         packetPool.release(p); // free the packet we just removed
 
     bool result = (p != NULL);
-    DEBUG_MSG("cancelSending id=0x%x, removed=%d", id, result);
+    DEBUG_MSG("cancelSending id=0x%x, removed=%d\n", id, result);
     return result;
 }
 
-
 /** radio helper thread callback.
 
 We never immediately transmit after any operation (either rx or tx).  Instead we should start receiving and
@@ -296,6 +300,10 @@ void RadioLibInterface::handleReceiveInterrupt()
 void RadioLibInterface::startSend(MeshPacket *txp)
 {
     printPacket("Starting low level send", txp);    
+    if (disabled) {
+        DEBUG_MSG("startSend is dropping tx packet because we are disabled\n");
+        packetPool.release(txp);
+    } else {
         setStandby(); // Cancel any already in process receives
 
         configHardwareForSend(); // must be after setStandby
@@ -308,3 +316,4 @@ void RadioLibInterface::startSend(MeshPacket *txp)
         // Must be done AFTER, starting transmit, because startTransmit clears (possibly stale) interrupt pending register bits
         enableInterrupt(isrTxLevel0);
     }
+}