/** Function to manage CDC data transmission and reception to and from the host for the first CDC interface, which sends joystick
* movements to the host as ASCII strings.
*/
void CDC1_Task(void)
{
char* ReportString = NULL;
uint8_t JoyStatus_LCL = Joystick_GetStatus();
static bool ActionSent = false;
/* Device must be connected and configured for the task to run */
if (USB_DeviceState != DEVICE_STATE_Configured)
return;
/* Determine if a joystick action has occurred */
if (JoyStatus_LCL & JOY_UP)
ReportString = "Joystick Up\r\n";
else if (JoyStatus_LCL & JOY_DOWN)
ReportString = "Joystick Down\r\n";
else if (JoyStatus_LCL & JOY_LEFT)
ReportString = "Joystick Left\r\n";
else if (JoyStatus_LCL & JOY_RIGHT)
ReportString = "Joystick Right\r\n";
else if (JoyStatus_LCL & JOY_PRESS)
ReportString = "Joystick Pressed\r\n";
else
ActionSent = false;
/* Flag management - Only allow one string to be sent per action */
if ((ReportString != NULL) && (ActionSent == false) && LineEncoding1.BaudRateBPS)
{
ActionSent = true;
/* Select the Serial Tx Endpoint */
Endpoint_SelectEndpoint(CDC1_TX_EPNUM);
/* Write the String to the Endpoint */
Endpoint_Write_Stream_LE(ReportString, strlen(ReportString), NULL);
/* Finalize the stream transfer to send the last packet */
Endpoint_ClearIN();
/* Wait until the endpoint is ready for another packet */
Endpoint_WaitUntilReady();
/* Send an empty packet to ensure that the host does not buffer data sent to it */
Endpoint_ClearIN();
}
/* Select the Serial Rx Endpoint */
Endpoint_SelectEndpoint(CDC1_RX_EPNUM);
/* Throw away any received data from the host */
if (Endpoint_IsOUTReceived())
Endpoint_ClearOUT();
}
/** Reads the joystick and button status, sending commands to the launcher as needed. */
void Read_Joystick_Status(void)
{
uint8_t JoyStatus_LCL = Joystick_GetStatus();
uint8_t Buttons_LCL = Buttons_GetStatus();
if (Buttons_LCL & BUTTONS_BUTTON1)
Send_Command(CMD_FIRE);
else if (JoyStatus_LCL & JOY_UP)
Send_Command(CMD_UP);
else if (JoyStatus_LCL & JOY_DOWN)
Send_Command(CMD_DOWN);
else if (JoyStatus_LCL & JOY_LEFT)
Send_Command(CMD_LEFT);
else if (JoyStatus_LCL & JOY_RIGHT)
Send_Command(CMD_RIGHT);
else if (CmdState != CMD_STOP)
Send_Command(CMD_STOP);
}
/** HID class driver callback function for the creation of HID reports to the host.
*
* \param[in] HIDInterfaceInfo Pointer to the HID class interface configuration structure being referenced
* \param[in,out] ReportID Report ID requested by the host if non-zero, otherwise callback should set to the generated report ID
* \param[in] ReportType Type of the report to create, either HID_REPORT_ITEM_In or HID_REPORT_ITEM_Feature
* \param[out] ReportData Pointer to a buffer where the created report should be stored
* \param[out] ReportSize Number of bytes written in the report (or zero if no report is to be sent)
*
* \return Boolean true to force the sending of the report, false to let the library determine if it needs to be sent
*/
bool CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo, uint8_t* const ReportID,
const uint8_t ReportType, void* ReportData, uint16_t* const ReportSize)
{
USB_MediaReport_Data_t* MediaReport = (USB_MediaReport_Data_t*)ReportData;
uint8_t JoyStatus_LCL = Joystick_GetStatus();
uint8_t ButtonStatus_LCL = Buttons_GetStatus();
/* Update the Media Control report with the user button presses */
MediaReport->Mute = ((ButtonStatus_LCL & BUTTONS_BUTTON1) ? true : false);
MediaReport->PlayPause = ((JoyStatus_LCL & JOY_PRESS) ? true : false);
MediaReport->VolumeUp = ((JoyStatus_LCL & JOY_UP) ? true : false);
MediaReport->VolumeDown = ((JoyStatus_LCL & JOY_DOWN) ? true : false);
MediaReport->PreviousTrack = ((JoyStatus_LCL & JOY_LEFT) ? true : false);
MediaReport->NextTrack = ((JoyStatus_LCL & JOY_RIGHT) ? true : false);
*ReportSize = sizeof(USB_MediaReport_Data_t);
return false;
}
/* HID class driver callback function for the creation of HID reports to the host */
bool CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t *const HIDInterfaceInfo,
uint8_t *const ReportID,
const uint8_t ReportType,
void *ReportData,
uint16_t *const ReportSize)
{
USB_MouseReport_Data_t *MouseReport = (USB_MouseReport_Data_t *) ReportData;
uint8_t JoyStatus_LCL = Joystick_GetStatus();
uint8_t ButtonStatus_LCL = Buttons_GetStatus();
bool press = false;
if (JoyStatus_LCL & JOY_UP) {
MouseReport->Y = -1;
press = true;
}
else if (JoyStatus_LCL & JOY_DOWN) {
MouseReport->Y = 1;
press = true;
}
if (JoyStatus_LCL & JOY_LEFT) {
MouseReport->X = -1;
press = true;
}
else if (JoyStatus_LCL & JOY_RIGHT) {
MouseReport->X = 1;
press = true;
}
if (JoyStatus_LCL & JOY_PRESS) {
MouseReport->Button |= (1 << 0);
press = true;
}
if (ButtonStatus_LCL & BUTTONS_BUTTON1) {
MouseReport->Button |= (1 << 1);
press = true;
}
*ReportSize = sizeof(USB_MouseReport_Data_t);
return press;
}
/** Mouse task. This generates the next mouse HID report for the host, and transmits it via the
* mouse IN endpoint when the host is ready for more data.
*/
void Mouse_HID_Task(void)
{
uint8_t JoyStatus_LCL = Joystick_GetStatus();
/* Device must be connected and configured for the task to run */
if (USB_DeviceState != DEVICE_STATE_Configured)
return;
/* Check if board button is pressed, if so mouse mode enabled */
if (Buttons_GetStatus() & BUTTONS_BUTTON1)
{
if (JoyStatus_LCL & JOY_UP)
MouseReportData.Y = 1;
else if (JoyStatus_LCL & JOY_DOWN)
MouseReportData.Y = -1;
if (JoyStatus_LCL & JOY_RIGHT)
MouseReportData.X = 1;
else if (JoyStatus_LCL & JOY_LEFT)
MouseReportData.X = -1;
if (JoyStatus_LCL & JOY_PRESS)
MouseReportData.Button = (1 << 0);
}
/* Select the Mouse Report Endpoint */
Endpoint_SelectEndpoint(MOUSE_IN_EPNUM);
/* Check if Mouse Endpoint Ready for Read/Write */
if (Endpoint_IsReadWriteAllowed())
{
/* Write Mouse Report Data */
Endpoint_Write_Stream_LE(&MouseReportData, sizeof(MouseReportData));
/* Finalize the stream transfer to send the last packet */
Endpoint_ClearIN();
/* Clear the report data afterwards */
memset(&MouseReportData, 0, sizeof(MouseReportData));
}
}
int main(void)
{
uint_reg_t Dummy;
/* Buttons Compile Check */
Buttons_Init();
Dummy = Buttons_GetStatus();
Buttons_Disable();
/* Dataflash Compile Check */
Dataflash_Init();
Dataflash_TransferByte(0);
Dataflash_SendByte(0);
Dummy = Dataflash_ReceiveByte();
Dummy = Dataflash_GetSelectedChip();
Dataflash_SelectChip(0);
Dataflash_DeselectChip();
Dataflash_SelectChipFromPage(0);
Dataflash_ToggleSelectedChipCS();
Dataflash_WaitWhileBusy();
Dataflash_SendAddressBytes(0, 0);
/* LEDs Compile Check */
LEDs_Init();
LEDs_TurnOnLEDs(LEDS_ALL_LEDS);
LEDs_TurnOffLEDs(LEDS_ALL_LEDS);
LEDs_SetAllLEDs(LEDS_ALL_LEDS);
LEDs_ChangeLEDs(LEDS_ALL_LEDS, LEDS_NO_LEDS);
LEDs_ToggleLEDs(LEDS_ALL_LEDS);
Dummy = LEDs_GetLEDs();
LEDs_Disable();
/* Joystick Compile Check */
Joystick_Init();
Dummy = Joystick_GetStatus();
Joystick_Disable();
(void)Dummy;
}
/** Fills the given HID report data structure with the next HID report to send to the host.
*
* \param[out] ReportData Pointer to a HID report data structure to be filled
*
* \return Boolean true if the new report differs from the last report, false otherwise
*/
bool GetNextReport(USB_JoystickReport_Data_t* const ReportData)
{
static uint8_t PrevJoyStatus = 0;
static uint8_t PrevButtonStatus = 0;
uint8_t JoyStatus_LCL = Joystick_GetStatus();
uint8_t ButtonStatus_LCL = Buttons_GetStatus();
bool InputChanged = false;
/* Clear the report contents */
memset(ReportData, 0, sizeof(USB_JoystickReport_Data_t));
if (JoyStatus_LCL & JOY_UP)
ReportData->Y = -100;
else if (JoyStatus_LCL & JOY_DOWN)
ReportData->Y = 100;
if (JoyStatus_LCL & JOY_LEFT)
ReportData->X = -100;
else if (JoyStatus_LCL & JOY_RIGHT)
ReportData->X = 100;
if (JoyStatus_LCL & JOY_PRESS)
ReportData->Button |= (1 << 1);
if (ButtonStatus_LCL & BUTTONS_BUTTON1)
ReportData->Button |= (1 << 0);
/* Check if the new report is different to the previous report */
InputChanged = (uint8_t)(PrevJoyStatus ^ JoyStatus_LCL) | (uint8_t)(PrevButtonStatus ^ ButtonStatus_LCL);
/* Save the current joystick status for later comparison */
PrevJoyStatus = JoyStatus_LCL;
PrevButtonStatus = ButtonStatus_LCL;
/* Return whether the new report is different to the previous report or not */
return InputChanged;
}
/** Checks for changes in the position of the board joystick, sending MIDI events to the host upon each change. */
void CheckJoystickMovement(void)
{
static uint8_t PrevJoystickStatus;
uint8_t MIDICommand = 0;
uint8_t MIDIPitch;
/* Get current joystick mask, XOR with previous to detect joystick changes */
uint8_t JoystickStatus = Joystick_GetStatus();
uint8_t JoystickChanges = (JoystickStatus ^ PrevJoystickStatus);
/* Get board button status - if pressed use second virtual cable, otherwise use the first */
uint8_t VirtualCable = (Buttons_GetStatus() & BUTTONS_BUTTON1) ? 1 : 0;
if (JoystickChanges & JOY_LEFT)
{
MIDICommand = ((JoystickStatus & JOY_LEFT)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3C;
}
if (JoystickChanges & JOY_UP)
{
MIDICommand = ((JoystickStatus & JOY_UP)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3D;
}
if (JoystickChanges & JOY_RIGHT)
{
MIDICommand = ((JoystickStatus & JOY_RIGHT)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3E;
}
if (JoystickChanges & JOY_DOWN)
{
MIDICommand = ((JoystickStatus & JOY_DOWN)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3F;
}
if (JoystickChanges & JOY_PRESS)
{
MIDICommand = ((JoystickStatus & JOY_PRESS)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3B;
}
if (MIDICommand)
{
MIDI_EventPacket_t MIDIEvent = (MIDI_EventPacket_t)
{
.Event = MIDI_EVENT(VirtualCable, MIDICommand),
.Data1 = MIDICommand | MIDI_CHANNEL(1),
.Data2 = MIDIPitch,
.Data3 = MIDI_STANDARD_VELOCITY,
};
MIDI_Device_SendEventPacket(&Keyboard_MIDI_Interface, &MIDIEvent);
MIDI_Device_Flush(&Keyboard_MIDI_Interface);
}
PrevJoystickStatus = JoystickStatus;
}
/** Event handler for the library USB Connection event. */
void EVENT_USB_Device_Connect(void)
{
LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
}
/** HID class driver callback function for the creation of HID reports to the host.
*
* \param[in] HIDInterfaceInfo Pointer to the HID class interface configuration structure being referenced
* \param[in,out] ReportID Report ID requested by the host if non-zero, otherwise callback should set to the generated report ID
* \param[in] ReportType Type of the report to create, either HID_REPORT_ITEM_In or HID_REPORT_ITEM_Feature
* \param[out] ReportData Pointer to a buffer where the created report should be stored
* \param[out] ReportSize Number of bytes written in the report (or zero if no report is to be sent
*
* \return Boolean true to force the sending of the report, false to let the library determine if it needs to be sent
*/
bool CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo,
uint8_t* const ReportID,
const uint8_t ReportType,
void* ReportData,
uint16_t* const ReportSize)
{
uint8_t JoyStatus_LCL = Joystick_GetStatus();
uint8_t ButtonStatus_LCL = Buttons_GetStatus();
/* Determine which interface must have its report generated */
if (HIDInterfaceInfo == &Keyboard_HID_Interface)
{
USB_KeyboardReport_Data_t* KeyboardReport = (USB_KeyboardReport_Data_t*)ReportData;
/* If first board button not being held down, no keyboard report */
if (!(ButtonStatus_LCL & BUTTONS_BUTTON1))
return 0;
KeyboardReport->Modifier = HID_KEYBOARD_MODIFER_LEFTSHIFT;
if (JoyStatus_LCL & JOY_UP)
KeyboardReport->KeyCode[0] = 0x04; // A
else if (JoyStatus_LCL & JOY_DOWN)
KeyboardReport->KeyCode[0] = 0x05; // B
if (JoyStatus_LCL & JOY_LEFT)
KeyboardReport->KeyCode[0] = 0x06; // C
else if (JoyStatus_LCL & JOY_RIGHT)
KeyboardReport->KeyCode[0] = 0x07; // D
if (JoyStatus_LCL & JOY_PRESS)
KeyboardReport->KeyCode[0] = 0x08; // E
*ReportSize = sizeof(USB_KeyboardReport_Data_t);
return false;
}
else
{
USB_MouseReport_Data_t* MouseReport = (USB_MouseReport_Data_t*)ReportData;
/* If first board button being held down, no mouse report */
if (ButtonStatus_LCL & BUTTONS_BUTTON1)
return 0;
if (JoyStatus_LCL & JOY_UP)
MouseReport->Y = -1;
else if (JoyStatus_LCL & JOY_DOWN)
MouseReport->Y = 1;
if (JoyStatus_LCL & JOY_LEFT)
MouseReport->X = -1;
else if (JoyStatus_LCL & JOY_RIGHT)
MouseReport->X = 1;
if (JoyStatus_LCL & JOY_PRESS)
MouseReport->Button |= (1 << 0);
*ReportSize = sizeof(USB_MouseReport_Data_t);
return true;
}
}
/** Task to handle the generation of MIDI note change events in response to presses of the board joystick, and send them
* to the host.
*/
void MIDI_Task(void)
{
static uint8_t PrevJoystickStatus;
/* Device must be connected and configured for the task to run */
if (USB_DeviceState != DEVICE_STATE_Configured)
return;
Endpoint_SelectEndpoint(MIDI_STREAM_IN_EPNUM);
if (Endpoint_IsINReady())
{
uint8_t MIDICommand = 0;
uint8_t MIDIPitch;
uint8_t JoystickStatus = Joystick_GetStatus();
uint8_t JoystickChanges = (JoystickStatus ^ PrevJoystickStatus);
/* Get board button status - if pressed use channel 10 (percussion), otherwise use channel 1 */
uint8_t Channel = ((Buttons_GetStatus() & BUTTONS_BUTTON1) ? MIDI_CHANNEL(10) : MIDI_CHANNEL(1));
if (JoystickChanges & JOY_LEFT)
{
MIDICommand = ((JoystickStatus & JOY_LEFT)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3C;
}
if (JoystickChanges & JOY_UP)
{
MIDICommand = ((JoystickStatus & JOY_UP)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3D;
}
if (JoystickChanges & JOY_RIGHT)
{
MIDICommand = ((JoystickStatus & JOY_RIGHT)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3E;
}
if (JoystickChanges & JOY_DOWN)
{
MIDICommand = ((JoystickStatus & JOY_DOWN)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3F;
}
if (JoystickChanges & JOY_PRESS)
{
MIDICommand = ((JoystickStatus & JOY_PRESS)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3B;
}
/* Check if a MIDI command is to be sent */
if (MIDICommand)
{
USB_MIDI_EventPacket_t MIDIEvent = (USB_MIDI_EventPacket_t)
{
.CableNumber = 0,
.Command = (MIDICommand >> 4),
.Data1 = MIDICommand | Channel,
.Data2 = MIDIPitch,
.Data3 = MIDI_STANDARD_VELOCITY,
};
/* Write the MIDI event packet to the endpoint */
Endpoint_Write_Stream_LE(&MIDIEvent, sizeof(MIDIEvent));
/* Send the data in the endpoint to the host */
Endpoint_ClearIN();
}
/* Save previous joystick value for next joystick change detection */
PrevJoystickStatus = JoystickStatus;
}
/* Select the MIDI OUT stream */
Endpoint_SelectEndpoint(MIDI_STREAM_OUT_EPNUM);
/* Check if endpoint is ready to be read from, if so discard its (unused) data */
if (Endpoint_IsOUTReceived())
Endpoint_ClearOUT();
}
/** Task to handle the generation of MIDI note change events in response to presses of the board joystick, and send them
* to the host.
*/
void MIDI_Task(void)
{
static uint8_t PrevJoystickStatus;
/* Device must be connected and configured for the task to run */
if (USB_DeviceState != DEVICE_STATE_Configured)
return;
Endpoint_SelectEndpoint(MIDI_STREAM_IN_EPADDR);
if (Endpoint_IsINReady())
{
uint8_t MIDICommand = 0;
uint8_t MIDIPitch;
uint8_t JoystickStatus = Joystick_GetStatus();
uint8_t JoystickChanges = (JoystickStatus ^ PrevJoystickStatus);
/* Get board button status - if pressed use channel 10 (percussion), otherwise use channel 1 */
uint8_t Channel = ((Buttons_GetStatus() & BUTTONS_BUTTON1) ? MIDI_CHANNEL(10) : MIDI_CHANNEL(1));
if (JoystickChanges & JOY_LEFT)
{
MIDICommand = ((JoystickStatus & JOY_LEFT)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3C;
}
if (JoystickChanges & JOY_UP)
{
MIDICommand = ((JoystickStatus & JOY_UP)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3D;
}
if (JoystickChanges & JOY_RIGHT)
{
MIDICommand = ((JoystickStatus & JOY_RIGHT)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3E;
}
if (JoystickChanges & JOY_DOWN)
{
MIDICommand = ((JoystickStatus & JOY_DOWN)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3F;
}
if (JoystickChanges & JOY_PRESS)
{
MIDICommand = ((JoystickStatus & JOY_PRESS)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3B;
}
/* Check if a MIDI command is to be sent */
if (MIDICommand)
{
MIDI_EventPacket_t MIDIEvent = (MIDI_EventPacket_t)
{
.Event = MIDI_EVENT(0, MIDICommand),
.Data1 = MIDICommand | Channel,
.Data2 = MIDIPitch,
.Data3 = MIDI_STANDARD_VELOCITY,
};
/* Write the MIDI event packet to the endpoint */
Endpoint_Write_Stream_LE(&MIDIEvent, sizeof(MIDIEvent), NULL);
/* Send the data in the endpoint to the host */
Endpoint_ClearIN();
}
/* Save previous joystick value for next joystick change detection */
PrevJoystickStatus = JoystickStatus;
}
/* Select the MIDI OUT stream */
Endpoint_SelectEndpoint(MIDI_STREAM_OUT_EPADDR);
/* Check if a MIDI command has been received */
if (Endpoint_IsOUTReceived())
{
MIDI_EventPacket_t MIDIEvent;
/* Read the MIDI event packet from the endpoint */
Endpoint_Read_Stream_LE(&MIDIEvent, sizeof(MIDIEvent), NULL);
/* Check to see if the sent command is a note on message with a non-zero velocity */
if ((MIDIEvent.Event == MIDI_EVENT(0, MIDI_COMMAND_NOTE_ON)) && (MIDIEvent.Data3 > 0))
{
/* Change LEDs depending on the pitch of the sent note */
LEDs_SetAllLEDs(MIDIEvent.Data2 > 64 ? LEDS_LED1 : LEDS_LED2);
}
else
{
/* Turn off all LEDs in response to non Note On messages */
LEDs_SetAllLEDs(LEDS_NO_LEDS);
}
/* If the endpoint is now empty, clear the bank */
if (!(Endpoint_BytesInEndpoint()))
{
/* Clear the endpoint ready for new packet */
Endpoint_ClearOUT();
}
}
}
/** 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;
uint8_t MIDICommand = 0;
uint8_t MIDIPitch;
/* Get current joystick mask, XOR with previous to detect joystick changes */
uint8_t JoystickStatus = Joystick_GetStatus();
uint8_t JoystickChanges = (JoystickStatus ^ PrevJoystickStatus);
/* Get board button status - if pressed use channel 10 (percussion), otherwise use channel 1 */
uint8_t Channel = ((Buttons_GetStatus() & BUTTONS_BUTTON1) ? MIDI_CHANNEL(10) : MIDI_CHANNEL(1));
if (JoystickChanges & JOY_LEFT)
{
MIDICommand = ((JoystickStatus & JOY_LEFT)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3C;
}
else if (JoystickChanges & JOY_UP)
{
MIDICommand = ((JoystickStatus & JOY_UP)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3D;
}
else if (JoystickChanges & JOY_RIGHT)
{
MIDICommand = ((JoystickStatus & JOY_RIGHT)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3E;
}
else if (JoystickChanges & JOY_DOWN)
{
MIDICommand = ((JoystickStatus & JOY_DOWN)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3F;
}
else if (JoystickChanges & JOY_PRESS)
{
MIDICommand = ((JoystickStatus & JOY_PRESS)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3B;
}
if (MIDICommand)
{
MIDI_EventPacket_t MIDIEvent = (MIDI_EventPacket_t)
{
.Event = MIDI_EVENT(0, MIDICommand),
.Data1 = MIDICommand | Channel,
.Data2 = MIDIPitch,
.Data3 = MIDI_STANDARD_VELOCITY,
};
MIDI_Host_SendEventPacket(&Keyboard_MIDI_Interface, &MIDIEvent);
MIDI_Host_Flush(&Keyboard_MIDI_Interface);
}
PrevJoystickStatus = JoystickStatus;
}
/** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
* starts the library USB task to begin the enumeration and USB management process.
*/
void EVENT_USB_Host_DeviceAttached(void)
{
puts_P(PSTR("Device Attached.\r\n"));
LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
}
/** Task to read in note on/off messages from the attached MIDI device and print it to the serial port.
* When the board joystick or buttons are pressed, note on/off messages are sent to the attached device.
*/
void MIDIHost_Task(void)
{
if (USB_HostState != HOST_STATE_Configured)
return;
Pipe_SelectPipe(MIDI_DATA_IN_PIPE);
Pipe_Unfreeze();
if (Pipe_IsINReceived())
{
MIDI_EventPacket_t MIDIEvent;
Pipe_Read_Stream_LE(&MIDIEvent, sizeof(MIDIEvent), NULL);
if (!(Pipe_BytesInPipe()))
Pipe_ClearIN();
bool NoteOnEvent = (MIDIEvent.Event == MIDI_EVENT(0, MIDI_COMMAND_NOTE_ON));
bool NoteOffEvent = (MIDIEvent.Event == MIDI_EVENT(0, MIDI_COMMAND_NOTE_OFF));
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);
}
}
Pipe_Freeze();
Pipe_SelectPipe(MIDI_DATA_OUT_PIPE);
Pipe_Unfreeze();
if (Pipe_IsOUTReady())
{
uint8_t MIDICommand = 0;
uint8_t MIDIPitch;
static uint8_t PrevJoystickStatus;
uint8_t JoystickStatus = Joystick_GetStatus();
uint8_t JoystickChanges = (JoystickStatus ^ PrevJoystickStatus);
/* Get board button status - if pressed use channel 10 (percussion), otherwise use channel 1 */
uint8_t Channel = ((Buttons_GetStatus() & BUTTONS_BUTTON1) ? MIDI_CHANNEL(10) : MIDI_CHANNEL(1));
if (JoystickChanges & JOY_LEFT)
{
MIDICommand = ((JoystickStatus & JOY_LEFT)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3C;
}
if (JoystickChanges & JOY_UP)
{
MIDICommand = ((JoystickStatus & JOY_UP)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3D;
}
if (JoystickChanges & JOY_RIGHT)
{
MIDICommand = ((JoystickStatus & JOY_RIGHT)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3E;
}
if (JoystickChanges & JOY_DOWN)
{
MIDICommand = ((JoystickStatus & JOY_DOWN)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3F;
}
if (JoystickChanges & JOY_PRESS)
{
MIDICommand = ((JoystickStatus & JOY_PRESS)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
MIDIPitch = 0x3B;
}
/* Check if a MIDI command is to be sent */
if (MIDICommand)
{
MIDI_EventPacket_t MIDIEvent = (MIDI_EventPacket_t)
{
.Event = MIDI_EVENT(0, MIDICommand),
.Data1 = MIDICommand | Channel,
.Data2 = MIDIPitch,
.Data3 = MIDI_STANDARD_VELOCITY,
};
/* Write the MIDI event packet to the pipe */
Pipe_Write_Stream_LE(&MIDIEvent, sizeof(MIDIEvent), NULL);
/* Send the data in the pipe to the device */
Pipe_ClearOUT();
}
Pipe_Freeze();
/* Save previous joystick value for next joystick change detection */
PrevJoystickStatus = JoystickStatus;
}
}
