Added incomplete MIDIToneGenerator project.

[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 8aed527..edfc56f 100644 (file)
--- a/Demos/Device/LowLevel/MIDI/MIDI.c
+++ b/Demos/Device/LowLevel/MIDI/MIDI.c
@@ -1,21 +1,21 @@
 /*\r
              LUFA Library\r
 /*\r
              LUFA Library\r

-     Copyright (C) Dean Camera, 2009.\r
+     Copyright (C) Dean Camera, 2010.\r

               \r
   dean [at] fourwalledcubicle [dot] com\r
       www.fourwalledcubicle.com\r
 */\r
 \r
 /*\r
               \r
   dean [at] fourwalledcubicle [dot] com\r
       www.fourwalledcubicle.com\r
 */\r
 \r
 /*\r

-  Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
-\r
-  Permission to use, copy, modify, and distribute this software\r
-  and its documentation for any purpose and without fee is hereby\r
-  granted, provided that the above copyright notice appear in all\r
-  copies and that both that the copyright notice and this\r
-  permission notice and warranty disclaimer appear in supporting\r
-  documentation, and that the name of the author not be used in\r
-  advertising or publicity pertaining to distribution of the\r
+  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
+\r
+  Permission to use, copy, modify, distribute, and sell this \r
+  software and its documentation for any purpose is hereby granted\r
+  without fee, provided that the above copyright notice appear in \r
+  all copies and that both that the copyright notice and this\r
+  permission notice and warranty disclaimer appear in supporting \r
+  documentation, and that the name of the author not be used in \r
+  advertising or publicity pertaining to distribution of the \r

   software without specific, written prior permission.\r
 \r
   The author disclaim all warranties with regard to this\r
   software without specific, written prior permission.\r
 \r
   The author disclaim all warranties with regard to this\r


@@ -37,7 +37,7 @@
 #include "MIDI.h"\r
 \r
 /** Main program entry point. This routine configures the hardware required by the application, then\r
 #include "MIDI.h"\r
 \r
 /** Main program entry point. This routine configures the hardware required by the application, then\r

- *  starts the scheduler to run the application tasks.\r
+ *  enters a loop to run the application tasks in sequence.\r

  */\r
 int main(void)\r
 {\r
  */\r
 int main(void)\r
 {\r


@@ -70,7 +70,7 @@ void SetupHardware(void)
 }\r
 \r
 /** Event handler for the USB_Connect event. This indicates that the device is enumerating via the status LEDs. */\r
 }\r
 \r
 /** Event handler for the USB_Connect event. This indicates that the device is enumerating via the status LEDs. */\r

-void EVENT_USB_Connect(void)\r
+void EVENT_USB_Device_Connect(void)\r

 {\r
        /* Indicate USB enumerating */\r
        LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);\r
 {\r
        /* Indicate USB enumerating */\r
        LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);\r


@@ -79,7 +79,7 @@ void EVENT_USB_Connect(void)
 /** Event handler for the USB_Disconnect event. This indicates that the device is no longer connected to a host via\r
  *  the status LEDs, disables the sample update and PWM output timers and stops the USB and MIDI management tasks.\r
  */\r
 /** Event handler for the USB_Disconnect event. This indicates that the device is no longer connected to a host via\r
  *  the status LEDs, disables the sample update and PWM output timers and stops the USB and MIDI management tasks.\r
  */\r

-void EVENT_USB_Disconnect(void)\r
+void EVENT_USB_Device_Disconnect(void)\r

 {\r
        /* Indicate USB not ready */\r
        LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);\r
 {\r
        /* Indicate USB not ready */\r
        LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);\r


@@ -88,7 +88,7 @@ void EVENT_USB_Disconnect(void)
 /** Event handler for the USB_ConfigurationChanged event. This is fired when the host set the current configuration\r
  *  of the USB device after enumeration - the device endpoints are configured and the MIDI management task started.\r
  */\r
 /** Event handler for the USB_ConfigurationChanged event. This is fired when the host set the current configuration\r
  *  of the USB device after enumeration - the device endpoints are configured and the MIDI management task started.\r
  */\r

-void EVENT_USB_ConfigurationChanged(void)\r
+void EVENT_USB_Device_ConfigurationChanged(void)\r

 {\r
        /* Indicate USB connected and ready */\r
        LEDs_SetAllLEDs(LEDMASK_USB_READY);\r
 {\r
        /* Indicate USB connected and ready */\r
        LEDs_SetAllLEDs(LEDMASK_USB_READY);\r


@@ -190,7 +190,27 @@ void MIDI_Task(void)
        /* Select the MIDI OUT stream */\r
        Endpoint_SelectEndpoint(MIDI_STREAM_OUT_EPNUM);\r
 \r
        /* Select the MIDI OUT stream */\r
        Endpoint_SelectEndpoint(MIDI_STREAM_OUT_EPNUM);\r
 \r

-       /* Check if endpoint is ready to be read from, if so discard its (unused) data */\r
+       /* Check if a MIDI command has been received */\r

        if (Endpoint_IsOUTReceived())\r
        if (Endpoint_IsOUTReceived())\r

-         Endpoint_ClearOUT();\r
+       {\r
+               USB_MIDI_EventPacket_t MIDIEvent;\r
+                       \r
+               /* Read the MIDI event packet from the endpoint */\r
+               Endpoint_Read_Stream_LE(&MIDIEvent, sizeof(MIDIEvent));\r
+       \r
+               /* Check to see if the sent command is a note on message with a non-zero velocity */\r
+               if ((MIDIEvent.Command == (MIDI_COMMAND_NOTE_ON >> 4)) && (MIDIEvent.Data3 > 0))\r
+               {\r
+                       /* Change LEDs depending on the pitch of the sent note */\r
+                       LEDs_SetAllLEDs(MIDIEvent.Data2 > 64 ? LEDS_LED1 : LEDS_LED2);\r
+               }\r
+               else\r
+               {\r
+                       /* Turn off all LEDs in response to non Note On messages */\r
+                       LEDs_SetAllLEDs(LEDS_NO_LEDS);\r
+               }\r
+       \r
+               /* Clear the endpoint ready for new packet */\r
+               Endpoint_ClearOUT();\r
+       }\r

 }\r
 }\r