/*
LUFA Library
- Copyright (C) Dean Camera, 2011.
+ Copyright (C) Dean Camera, 2013.
dean [at] fourwalledcubicle [dot] com
www.lufa-lib.org
*/
/*
- Copyright 2011 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+ Copyright 2013 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
advertising or publicity pertaining to distribution of the
software without specific, written prior permission.
- The author disclaim all warranties with regard to this
+ The author disclaims all warranties with regard to this
software, including all implied warranties of merchantability
and fitness. In no event shall the author be liable for any
special, indirect or consequential damages or any damages
{
.Config =
{
- .DataINPipeNumber = 1,
- .DataINPipeDoubleBank = false,
-
- .DataOUTPipeNumber = 2,
- .DataOUTPipeDoubleBank = false,
+ .DataINPipe =
+ {
+ .Address = (PIPE_DIR_IN | 1),
+ .Banks = 1,
+ },
+ .DataOUTPipe =
+ {
+ .Address = (PIPE_DIR_OUT | 2),
+ .Banks = 1,
+ },
},
};
puts_P(PSTR(ESC_FG_CYAN "MIDI Host Demo running.\r\n" ESC_FG_WHITE));
LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
- sei();
+ GlobalInterruptEnable();
for (;;)
{
- switch (USB_HostState)
- {
- case HOST_STATE_Addressed:
- LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
-
- uint16_t ConfigDescriptorSize;
- uint8_t ConfigDescriptorData[512];
-
- if (USB_Host_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData,
- sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful)
- {
- puts_P(PSTR("Error Retrieving Configuration Descriptor.\r\n"));
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
- USB_HostState = HOST_STATE_WaitForDeviceRemoval;
- break;
- }
-
- if (MIDI_Host_ConfigurePipes(&Keyboard_MIDI_Interface,
- ConfigDescriptorSize, ConfigDescriptorData) != MIDI_ENUMERROR_NoError)
- {
- puts_P(PSTR("Attached Device Not a Valid MIDI Class Device.\r\n"));
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
- USB_HostState = HOST_STATE_WaitForDeviceRemoval;
- break;
- }
-
- if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
- {
- puts_P(PSTR("Error Setting Device Configuration.\r\n"));
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
- USB_HostState = HOST_STATE_WaitForDeviceRemoval;
- break;
- }
-
- puts_P(PSTR("MIDI Device Enumerated.\r\n"));
- LEDs_SetAllLEDs(LEDMASK_USB_READY);
- USB_HostState = HOST_STATE_Configured;
- break;
- case HOST_STATE_Configured:
- CheckJoystickMovement();
-
- MIDI_EventPacket_t MIDIEvent;
- while (MIDI_Host_ReceiveEventPacket(&Keyboard_MIDI_Interface, &MIDIEvent))
- {
- bool NoteOnEvent = ((MIDIEvent.Command & 0x0F) == (MIDI_COMMAND_NOTE_ON >> 4));
- bool NoteOffEvent = ((MIDIEvent.Command & 0x0F) == (MIDI_COMMAND_NOTE_OFF >> 4));
-
- if (NoteOnEvent || NoteOffEvent)
- {
- 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);
- }
- }
-
- break;
- }
+ JoystickHost_Task();
MIDI_Host_USBTask(&Keyboard_MIDI_Interface);
USB_USBTask();
Serial_CreateStream(NULL);
}
+/** Task to manage an enumerated USB MIDI device once connected, to display received
+ * note events from the host and send note changes in response to the board's joystick.
+ */
+void JoystickHost_Task(void)
+{
+ if (USB_HostState != HOST_STATE_Configured)
+ return;
+
+ MIDI_EventPacket_t MIDIEvent;
+ while (MIDI_Host_ReceiveEventPacket(&Keyboard_MIDI_Interface, &MIDIEvent))
+ {
+ bool NoteOnEvent = (MIDIEvent.Event == MIDI_EVENT(0, MIDI_COMMAND_NOTE_ON));
+ bool NoteOffEvent = (MIDIEvent.Event == MIDI_EVENT(0, MIDI_COMMAND_NOTE_OFF));
+
+ /* Display note events from the host */
+ if (NoteOnEvent || NoteOffEvent)
+ {
+ 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);
+ }
+ }
+
+ CheckJoystickMovement();
+}
+
+/** Checks for movement of the board's joystick, and sends corresponding MIDI note on/off
+ * messages to the host.
+ */
void CheckJoystickMovement(void)
{
static uint8_t PrevJoystickStatus;
MIDICommand = ((JoystickStatus & JOY_LEFT)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3C;
}
-
- if (JoystickChanges & JOY_UP)
+ else if (JoystickChanges & JOY_UP)
{
MIDICommand = ((JoystickStatus & JOY_UP)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3D;
}
-
- if (JoystickChanges & JOY_RIGHT)
+ else if (JoystickChanges & JOY_RIGHT)
{
MIDICommand = ((JoystickStatus & JOY_RIGHT)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3E;
}
-
- if (JoystickChanges & JOY_DOWN)
+ else if (JoystickChanges & JOY_DOWN)
{
MIDICommand = ((JoystickStatus & JOY_DOWN)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3F;
}
-
- if (JoystickChanges & JOY_PRESS)
+ else if (JoystickChanges & JOY_PRESS)
{
MIDICommand = ((JoystickStatus & JOY_PRESS)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3B;
{
MIDI_EventPacket_t MIDIEvent = (MIDI_EventPacket_t)
{
- .CableNumber = 0,
- .Command = (MIDICommand >> 4),
+ .Event = MIDI_EVENT(0, MIDICommand),
.Data1 = MIDICommand | Channel,
.Data2 = MIDIPitch,
*/
void EVENT_USB_Host_DeviceEnumerationComplete(void)
{
+ LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
+
+ uint16_t ConfigDescriptorSize;
+ uint8_t ConfigDescriptorData[512];
+
+ if (USB_Host_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData,
+ sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful)
+ {
+ puts_P(PSTR("Error Retrieving Configuration Descriptor.\r\n"));
+ LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+ return;
+ }
+
+ if (MIDI_Host_ConfigurePipes(&Keyboard_MIDI_Interface,
+ ConfigDescriptorSize, ConfigDescriptorData) != MIDI_ENUMERROR_NoError)
+ {
+ puts_P(PSTR("Attached Device Not a Valid MIDI Class Device.\r\n"));
+ LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+ return;
+ }
+
+ if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
+ {
+ puts_P(PSTR("Error Setting Device Configuration.\r\n"));
+ LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+ return;
+ }
+
+ puts_P(PSTR("MIDI Device Enumerated.\r\n"));
LEDs_SetAllLEDs(LEDMASK_USB_READY);
}
projects / pub / USBasp.git / blobdiff