/*
LUFA Library
- Copyright (C) Dean Camera, 2010.
+ Copyright (C) Dean Camera, 2012.
dean [at] fourwalledcubicle [dot] com
www.lufa-lib.org
*/
/*
- Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+ Copyright 2012 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
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();
clock_prescale_set(clock_div_1);
/* Hardware Initialization */
- SerialStream_Init(9600, false);
+ Serial_Init(9600, false);
LEDs_Init();
Buttons_Init();
Joystick_Init();
USB_Init();
+
+ /* Create a stdio stream for the serial port for stdin and stdout */
+ 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 tbe 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.Command & 0x0F) == (MIDI_COMMAND_NOTE_ON >> 4));
+ bool NoteOffEvent = ((MIDIEvent.Command & 0x0F) == (MIDI_COMMAND_NOTE_OFF >> 4));
+
+ /* 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;
*/
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);
}
/** 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);
projects / pub / USBasp.git / blobdiff