Implemented on-demand PLL clock generation for the U4, U6 and U7 series USB AVRs...
[pub/USBasp.git] / Demos / Host / LowLevel / MIDIHost / MIDIHost.c
index e004099..6924fd4 100644 (file)
@@ -1,13 +1,13 @@
 /*
              LUFA Library
 /*
              LUFA Library
-     Copyright (C) Dean Camera, 2010.
+     Copyright (C) Dean Camera, 2011.
 
   dean [at] fourwalledcubicle [dot] com
 
   dean [at] fourwalledcubicle [dot] com
-      www.fourwalledcubicle.com
+           www.lufa-lib.org
 */
 
 /*
 */
 
 /*
-  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+  Copyright 2011  Dean Camera (dean [at] fourwalledcubicle [dot] com)
 
   Permission to use, copy, modify, distribute, and sell this
   software and its documentation for any purpose is hereby granted
 
   Permission to use, copy, modify, distribute, and sell this
   software and its documentation for any purpose is hereby granted
@@ -66,11 +66,14 @@ void SetupHardware(void)
        clock_prescale_set(clock_div_1);
 
        /* Hardware Initialization */
        clock_prescale_set(clock_div_1);
 
        /* Hardware Initialization */
-       SerialStream_Init(9600, false);
+       Serial_Init(9600, false);
        LEDs_Init();
        Buttons_Init();
        Joystick_Init();
        USB_Init();
        LEDs_Init();
        Buttons_Init();
        Joystick_Init();
        USB_Init();
+
+       /* Create a stdio stream for the serial port for stdin and stdout */
+       Serial_CreateStream(NULL);
 }
 
 /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
 }
 
 /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
@@ -102,7 +105,7 @@ void EVENT_USB_Host_DeviceEnumerationComplete(void)
 /** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
 void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
 {
 /** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
 void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
 {
-       USB_ShutDown();
+       USB_Disable();
 
        printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
                                 " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
 
        printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
                                 " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
@@ -181,7 +184,10 @@ void MIDI_Host_Task(void)
                        {
                                MIDI_EventPacket_t MIDIEvent;
 
                        {
                                MIDI_EventPacket_t MIDIEvent;
 
-                               Pipe_Read_Stream_LE(&MIDIEvent, sizeof(MIDIEvent));
+                               Pipe_Read_Stream_LE(&MIDIEvent, sizeof(MIDIEvent), NULL);
+
+                               if (!(Pipe_BytesInPipe()))
+                                 Pipe_ClearIN();
 
                                bool NoteOnEvent  = ((MIDIEvent.Command & 0x0F) == (MIDI_COMMAND_NOTE_ON  >> 4));
                                bool NoteOffEvent = ((MIDIEvent.Command & 0x0F) == (MIDI_COMMAND_NOTE_OFF >> 4));
 
                                bool NoteOnEvent  = ((MIDIEvent.Command & 0x0F) == (MIDI_COMMAND_NOTE_ON  >> 4));
                                bool NoteOffEvent = ((MIDIEvent.Command & 0x0F) == (MIDI_COMMAND_NOTE_OFF >> 4));
@@ -191,20 +197,17 @@ void MIDI_Host_Task(void)
                                        printf_P(PSTR("MIDI Note %s - Channel %d, Pitch %d, Velocity %d\r\n"), NoteOnEvent ? "On" : "Off",
                                                                                                           ((MIDIEvent.Data1 & 0x0F) + 1),
                                                                                                           MIDIEvent.Data2, MIDIEvent.Data3);
                                        printf_P(PSTR("MIDI Note %s - Channel %d, Pitch %d, Velocity %d\r\n"), NoteOnEvent ? "On" : "Off",
                                                                                                           ((MIDIEvent.Data1 & 0x0F) + 1),
                                                                                                           MIDIEvent.Data2, MIDIEvent.Data3);
-                               }
-
-                               Pipe_ClearIN();
+                               }                               
                        }
 
                        Pipe_SelectPipe(MIDI_DATA_OUT_PIPE);
 
                        }
 
                        Pipe_SelectPipe(MIDI_DATA_OUT_PIPE);
 
-                       static uint8_t PrevJoystickStatus;
-
                        if (Pipe_IsOUTReady())
                        {
                                uint8_t MIDICommand = 0;
                                uint8_t MIDIPitch;
 
                        if (Pipe_IsOUTReady())
                        {
                                uint8_t MIDICommand = 0;
                                uint8_t MIDIPitch;
 
+                               static uint8_t PrevJoystickStatus;
                                uint8_t JoystickStatus  = Joystick_GetStatus();
                                uint8_t JoystickChanges = (JoystickStatus ^ PrevJoystickStatus);
 
                                uint8_t JoystickStatus  = Joystick_GetStatus();
                                uint8_t JoystickChanges = (JoystickStatus ^ PrevJoystickStatus);
 
@@ -255,7 +258,7 @@ void MIDI_Host_Task(void)
                                                };
 
                                        /* Write the MIDI event packet to the pipe */
                                                };
 
                                        /* Write the MIDI event packet to the pipe */
-                                       Pipe_Write_Stream_LE(&MIDIEvent, sizeof(MIDIEvent));
+                                       Pipe_Write_Stream_LE(&MIDIEvent, sizeof(MIDIEvent), NULL);
 
                                        /* Send the data in the pipe to the device */
                                        Pipe_ClearOUT();
 
                                        /* Send the data in the pipe to the device */
                                        Pipe_ClearOUT();