Error status LEDs shown when device endpoint configuration fails to complete.

[pub/USBasp.git] / Demos / Device / LowLevel / MIDI / MIDI.c

diff --git a/Demos/Device/LowLevel/MIDI/MIDI.c b/Demos/Device/LowLevel/MIDI/MIDI.c
index 6dd38af..856f7db 100644 (file)
--- a/Demos/Device/LowLevel/MIDI/MIDI.c
+++ b/Demos/Device/LowLevel/MIDI/MIDI.c
@@ -90,17 +90,23 @@ void EVENT_USB_Disconnect(void)
  */\r
 void EVENT_USB_ConfigurationChanged(void)\r
 {\r
-       /* Setup MIDI stream endpoints */\r
-       Endpoint_ConfigureEndpoint(MIDI_STREAM_OUT_EPNUM, EP_TYPE_BULK,\r
-                                      ENDPOINT_DIR_OUT, MIDI_STREAM_EPSIZE,\r
-                                  ENDPOINT_BANK_SINGLE);\r
-\r
-       Endpoint_ConfigureEndpoint(MIDI_STREAM_IN_EPNUM, EP_TYPE_BULK,\r
-                                      ENDPOINT_DIR_IN, MIDI_STREAM_EPSIZE,\r
-                                  ENDPOINT_BANK_SINGLE);\r
-\r
        /* Indicate USB connected and ready */\r
        LEDs_SetAllLEDs(LEDMASK_USB_READY);\r
+\r
+       /* Setup MIDI stream endpoints */\r
+       if (!(Endpoint_ConfigureEndpoint(MIDI_STREAM_OUT_EPNUM, EP_TYPE_BULK,\r
+                                            ENDPOINT_DIR_OUT, MIDI_STREAM_EPSIZE,\r
+                                        ENDPOINT_BANK_SINGLE)))\r
+       {\r
+               LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
+       }       \r
+       \r
+       if (!(Endpoint_ConfigureEndpoint(MIDI_STREAM_IN_EPNUM, EP_TYPE_BULK,\r
+                                            ENDPOINT_DIR_IN, MIDI_STREAM_EPSIZE,\r
+                                        ENDPOINT_BANK_SINGLE)))\r
+       {\r
+               LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
+       }\r
 }\r
 \r
 /** Task to handle the generation of MIDI note change events in response to presses of the board joystick, and send them\r
@@ -159,8 +165,9 @@ void MIDI_Task(void)
  */\r
 void SendMIDINoteChange(const uint8_t Pitch, const bool OnOff, const uint8_t CableID, const uint8_t Channel)\r
 {\r
-       /* Wait until endpoint ready for more data */\r
-       while (!(Endpoint_IsReadWriteAllowed()));\r
+       /* If endpoint ready for more data, abort */\r
+       if (!(Endpoint_IsReadWriteAllowed()))\r
+         return;\r
 \r
        /* Check if the message should be a Note On or Note Off command */\r
        uint8_t Command = ((OnOff)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);\r