this software.\r
*/\r
\r
-/** \file\r
- *\r
- * Main source file for the MIDI input demo. This file contains the main tasks of the demo and\r
- * is responsible for the initial application hardware configuration.\r
- */\r
-\r
#include "MIDI.h"\r
\r
-/* Scheduler Task List */\r
-TASK_LIST\r
-{\r
- { .Task = USB_USBTask , .TaskStatus = TASK_STOP },\r
- { .Task = USB_MIDI_Task , .TaskStatus = TASK_STOP },\r
-};\r
+USB_ClassInfo_MIDI_t Keyboard_MIDI_Interface =\r
+ {\r
+ .InterfaceNumber = 0,\r
+\r
+ .DataINEndpointNumber = MIDI_STREAM_IN_EPNUM,\r
+ .DataINEndpointSize = MIDI_STREAM_EPSIZE,\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
- */\r
+ .DataOUTEndpointNumber = MIDI_STREAM_OUT_EPNUM,\r
+ .DataOUTEndpointSize = MIDI_STREAM_EPSIZE,\r
+ };\r
+ \r
int main(void)\r
{\r
+ SetupHardware();\r
+\r
+ LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);\r
+ \r
+ for (;;)\r
+ {\r
+ CheckJoystickMovement();\r
+ \r
+ USB_USBTask();\r
+ }\r
+}\r
+\r
+void SetupHardware(void)\r
+{\r
/* Disable watchdog if enabled by bootloader/fuses */\r
MCUSR &= ~(1 << WDRF);\r
wdt_disable();\r
Joystick_Init();\r
LEDs_Init();\r
Buttons_Init();\r
-\r
- /* Indicate USB not ready */\r
- UpdateStatus(Status_USBNotReady);\r
- \r
- /* Initialize Scheduler so that it can be used */\r
- Scheduler_Init();\r
-\r
- /* Initialize USB Subsystem */\r
USB_Init();\r
-\r
- /* Scheduling - routine never returns, so put this last in the main function */\r
- Scheduler_Start();\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
-{\r
- /* Start USB management task */\r
- Scheduler_SetTaskMode(USB_USBTask, TASK_RUN);\r
-\r
- /* Indicate USB enumerating */\r
- UpdateStatus(Status_USBEnumerating);\r
-}\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
-{\r
- /* Stop running audio and USB management tasks */\r
- Scheduler_SetTaskMode(USB_MIDI_Task, TASK_STOP);\r
- Scheduler_SetTaskMode(USB_USBTask, TASK_STOP);\r
-\r
- /* Indicate USB not ready */\r
- UpdateStatus(Status_USBNotReady);\r
-}\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
-{\r
- /* Setup MIDI stream endpoints */\r
- Endpoint_ConfigureEndpoint(MIDI_STREAM_OUT_EPNUM, EP_TYPE_BULK,\r
- ENDPOINT_DIR_OUT, MIDI_STREAM_EPSIZE,\r
- ENDPOINT_BANK_SINGLE);\r
-\r
- Endpoint_ConfigureEndpoint(MIDI_STREAM_IN_EPNUM, EP_TYPE_BULK,\r
- ENDPOINT_DIR_IN, MIDI_STREAM_EPSIZE,\r
- ENDPOINT_BANK_SINGLE);\r
-\r
- /* Indicate USB connected and ready */\r
- UpdateStatus(Status_USBReady);\r
-\r
- /* Start MIDI task */\r
- Scheduler_SetTaskMode(USB_MIDI_Task, TASK_RUN);\r
}\r
\r
-/** Task to handle the generation of MIDI note change events in response to presses of the board joystick, and send them\r
- * to the host.\r
- */\r
-TASK(USB_MIDI_Task)\r
+void CheckJoystickMovement(void)\r
{\r
static uint8_t PrevJoystickStatus;\r
\r
- /* Select the MIDI IN stream */\r
- Endpoint_SelectEndpoint(MIDI_STREAM_IN_EPNUM);\r
-\r
- /* Check if endpoint is ready to be written to */\r
- if (Endpoint_IsINReady())\r
- {\r
- /* Get current joystick mask, XOR with previous to detect joystick changes */\r
- uint8_t JoystickStatus = Joystick_GetStatus();\r
- uint8_t JoystickChanges = (JoystickStatus ^ PrevJoystickStatus);\r
+ uint8_t MIDICommand = 0;\r
+ uint8_t MIDIPitch;\r
+ \r
+ /* Get current joystick mask, XOR with previous to detect joystick changes */\r
+ uint8_t JoystickStatus = Joystick_GetStatus();\r
+ uint8_t JoystickChanges = (JoystickStatus ^ PrevJoystickStatus);\r
\r
- /* Get board button status - if pressed use channel 10 (percussion), otherwise use channel 1 */\r
- uint8_t Channel = ((Buttons_GetStatus() & BUTTONS_BUTTON1) ? MIDI_CHANNEL(10) : MIDI_CHANNEL(1));\r
-\r
- if (JoystickChanges & JOY_LEFT)\r
- SendMIDINoteChange(0x3C, (JoystickStatus & JOY_LEFT), 0, Channel);\r
-\r
- if (JoystickChanges & JOY_UP)\r
- SendMIDINoteChange(0x3D, (JoystickStatus & JOY_UP), 0, Channel);\r
-\r
- if (JoystickChanges & JOY_RIGHT)\r
- SendMIDINoteChange(0x3E, (JoystickStatus & JOY_RIGHT), 0, Channel);\r
+ /* Get board button status - if pressed use channel 10 (percussion), otherwise use channel 1 */\r
+ uint8_t Channel = ((Buttons_GetStatus() & BUTTONS_BUTTON1) ? MIDI_CHANNEL(10) : MIDI_CHANNEL(1));\r
\r
- if (JoystickChanges & JOY_DOWN)\r
- SendMIDINoteChange(0x3F, (JoystickStatus & JOY_DOWN), 0, Channel);\r
-\r
- if (JoystickChanges & JOY_PRESS)\r
- SendMIDINoteChange(0x3B, (JoystickStatus & JOY_PRESS), 0, Channel);\r
-\r
- /* Save previous joystick value for next joystick change detection */\r
- PrevJoystickStatus = JoystickStatus;\r
+ if (JoystickChanges & JOY_LEFT)\r
+ {\r
+ MIDICommand = ((JoystickStatus & JOY_LEFT)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);\r
+ MIDIPitch = 0x3C;\r
}\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
- if (Endpoint_IsOUTReceived())\r
- Endpoint_ClearOUT();\r
-}\r
+ if (JoystickChanges & JOY_UP)\r
+ {\r
+ MIDICommand = ((JoystickStatus & JOY_UP)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);\r
+ MIDIPitch = 0x3D;\r
+ }\r
\r
-/** Function to manage status updates to the user. This is done via LEDs on the given board, if available, but may be changed to\r
- * log to a serial port, or anything else that is suitable for status updates.\r
- *\r
- * \param CurrentStatus Current status of the system, from the MIDI_StatusCodes_t enum\r
- */\r
-void UpdateStatus(uint8_t CurrentStatus)\r
-{\r
- uint8_t LEDMask = LEDS_NO_LEDS;\r
+ if (JoystickChanges & JOY_RIGHT)\r
+ {\r
+ MIDICommand = ((JoystickStatus & JOY_RIGHT)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);\r
+ MIDIPitch = 0x3E;\r
+ }\r
\r
- /* Set the LED mask to the appropriate LED mask based on the given status code */\r
- switch (CurrentStatus)\r
+ if (JoystickChanges & JOY_DOWN)\r
+ {\r
+ MIDICommand = ((JoystickStatus & JOY_DOWN)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);\r
+ MIDIPitch = 0x3F;\r
+ }\r
+\r
+ if (JoystickChanges & JOY_PRESS)\r
{\r
- case Status_USBNotReady:\r
- LEDMask = (LEDS_LED1);\r
- break;\r
- case Status_USBEnumerating:\r
- LEDMask = (LEDS_LED1 | LEDS_LED2);\r
- break;\r
- case Status_USBReady:\r
- LEDMask = (LEDS_LED2 | LEDS_LED4);\r
- break;\r
+ MIDICommand = ((JoystickStatus & JOY_PRESS)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);\r
+ MIDIPitch = 0x3B;\r
}\r
\r
- /* Set the board LEDs to the new LED mask */\r
- LEDs_SetAllLEDs(LEDMask);\r
+ if (MIDICommand)\r
+ {\r
+ USB_MIDI_EventPacket_t MIDIEvent = (USB_MIDI_EventPacket_t)\r
+ {\r
+ .CableNumber = 0,\r
+ .Command = MIDICommand,\r
+ \r
+ .Data1 = (MIDICommand << 4) | Channel,\r
+ .Data2 = MIDIPitch,\r
+ .Data3 = MIDI_STANDARD_VELOCITY, \r
+ };\r
+ \r
+ USB_MIDI_SendEventPacket(&Keyboard_MIDI_Interface, &MIDIEvent);\r
+ }\r
+\r
+ PrevJoystickStatus = JoystickStatus;\r
}\r
\r
-/** Sends a MIDI note change event (note on or off) to the MIDI output jack, on the given virtual cable ID and channel.\r
- *\r
- * \param Pitch Pitch of the note to turn on or off\r
- * \param OnOff Set to true if the note is on (being held down), or false otherwise\r
- * \param CableID ID of the virtual cable to send the note change to\r
- * \param Channel MIDI channel number to send the note change event to\r
- */\r
-void SendMIDINoteChange(const uint8_t Pitch, const bool OnOff, const uint8_t CableID, const uint8_t Channel)\r
+void EVENT_USB_Connect(void)\r
{\r
- /* Wait until endpoint ready for more data */\r
- while (!(Endpoint_IsReadWriteAllowed()));\r
-\r
- /* Check if the message should be a Note On or Note Off command */\r
- uint8_t Command = ((OnOff)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);\r
+ LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);\r
+}\r
\r
- /* Write the Packet Header to the endpoint */\r
- Endpoint_Write_Byte((CableID << 4) | (Command >> 4));\r
+void EVENT_USB_Disconnect(void)\r
+{\r
+ LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);\r
+}\r
\r
- /* Write the Note On/Off command with the specified channel, pitch and velocity */\r
- Endpoint_Write_Byte(Command | Channel);\r
- Endpoint_Write_Byte(Pitch);\r
- Endpoint_Write_Byte(MIDI_STANDARD_VELOCITY);\r
+void EVENT_USB_ConfigurationChanged(void)\r
+{\r
+ LEDs_SetAllLEDs(LEDMASK_USB_READY);\r
\r
- /* Send the data in the endpoint to the host */\r
- Endpoint_ClearIN();\r
+ if (!(USB_MIDI_ConfigureEndpoints(&Keyboard_MIDI_Interface)))\r
+ LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
}\r
projects / pub / USBasp.git / blobdiff