-/*\r
- LUFA Library\r
- Copyright (C) Dean Camera, 2010.\r
- \r
- dean [at] fourwalledcubicle [dot] com\r
- www.fourwalledcubicle.com\r
-*/\r
-\r
-/*\r
- Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
-\r
- Permission to use, copy, modify, distribute, and sell this \r
- software and its documentation for any purpose is hereby granted\r
- without fee, provided that the above copyright notice appear in \r
- all copies and that both that the copyright notice and this\r
- permission notice and warranty disclaimer appear in supporting \r
- documentation, and that the name of the author not be used in \r
- advertising or publicity pertaining to distribution of the \r
- software without specific, written prior permission.\r
-\r
- The author disclaim all warranties with regard to this\r
- software, including all implied warranties of merchantability\r
- and fitness. In no event shall the author be liable for any\r
- special, indirect or consequential damages or any damages\r
- whatsoever resulting from loss of use, data or profits, whether\r
- in an action of contract, negligence or other tortious action,\r
- arising out of or in connection with the use or performance of\r
- this software.\r
-*/\r
-\r
-/** \file\r
- *\r
- * Main source file for the MIDI demo. This file contains the main tasks of\r
- * the demo and is responsible for the initial application hardware configuration.\r
- */\r
-\r
-#include "MIDIToneGenerator.h"\r
-\r
-/** LUFA MIDI Class driver interface configuration and state information. This structure is\r
- * passed to all MIDI Class driver functions, so that multiple instances of the same class\r
- * within a device can be differentiated from one another.\r
- */\r
-USB_ClassInfo_MIDI_Device_t Keyboard_MIDI_Interface =\r
- {\r
- .Config =\r
- {\r
- .StreamingInterfaceNumber = 1,\r
-\r
- .DataINEndpointNumber = MIDI_STREAM_IN_EPNUM,\r
- .DataINEndpointSize = MIDI_STREAM_EPSIZE,\r
- .DataINEndpointDoubleBank = false,\r
-\r
- .DataOUTEndpointNumber = MIDI_STREAM_OUT_EPNUM,\r
- .DataOUTEndpointSize = MIDI_STREAM_EPSIZE,\r
- .DataOUTEndpointDoubleBank = false,\r
- },\r
- };\r
-\r
-const uint8_t SineTable[] PROGMEM =\r
-{\r
- 0x80, 0x83, 0x86, 0x89, 0x8c, 0x8f, 0x92, 0x95, 0x98, 0x9c, 0x9f, 0xa2, 0xa5, 0xa8, 0xab, 0xae, \r
- 0xb0, 0xb3, 0xb6, 0xb9, 0xbc, 0xbf, 0xc1, 0xc4, 0xc7, 0xc9, 0xcc, 0xce, 0xd1, 0xd3, 0xd5, 0xd8, \r
- 0xda, 0xdc, 0xde, 0xe0, 0xe2, 0xe4, 0xe6, 0xe8, 0xea, 0xec, 0xed, 0xef, 0xf0, 0xf2, 0xf3, 0xf5, \r
- 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfc, 0xfd, 0xfe, 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, \r
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xfe, 0xfd, 0xfc, 0xfc, 0xfb, 0xfa, 0xf9, 0xf8, 0xf7, \r
- 0xf6, 0xf5, 0xf3, 0xf2, 0xf0, 0xef, 0xed, 0xec, 0xea, 0xe8, 0xe6, 0xe4, 0xe2, 0xe0, 0xde, 0xdc, \r
- 0xda, 0xd8, 0xd5, 0xd3, 0xd1, 0xce, 0xcc, 0xc9, 0xc7, 0xc4, 0xc1, 0xbf, 0xbc, 0xb9, 0xb6, 0xb3, \r
- 0xb0, 0xae, 0xab, 0xa8, 0xa5, 0xa2, 0x9f, 0x9c, 0x98, 0x95, 0x92, 0x8f, 0x8c, 0x89, 0x86, 0x83, \r
- 0x80, 0x7c, 0x79, 0x76, 0x73, 0x70, 0x6d, 0x6a, 0x67, 0x63, 0x60, 0x5d, 0x5a, 0x57, 0x54, 0x51, \r
- 0x4f, 0x4c, 0x49, 0x46, 0x43, 0x40, 0x3e, 0x3b, 0x38, 0x36, 0x33, 0x31, 0x2e, 0x2c, 0x2a, 0x27, \r
- 0x25, 0x23, 0x21, 0x1f, 0x1d, 0x1b, 0x19, 0x17, 0x15, 0x13, 0x12, 0x10, 0x0f, 0x0d, 0x0c, 0x0a, \r
- 0x09, 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x03, 0x02, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, \r
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x02, 0x03, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, \r
- 0x09, 0x0a, 0x0c, 0x0d, 0x0f, 0x10, 0x12, 0x13, 0x15, 0x17, 0x19, 0x1b, 0x1d, 0x1f, 0x21, 0x23, \r
- 0x25, 0x27, 0x2a, 0x2c, 0x2e, 0x31, 0x33, 0x36, 0x38, 0x3b, 0x3e, 0x40, 0x43, 0x46, 0x49, 0x4c, \r
- 0x4f, 0x51, 0x54, 0x57, 0x5a, 0x5d, 0x60, 0x63, 0x67, 0x6a, 0x6d, 0x70, 0x73, 0x76, 0x79, 0x7c\r
-};\r
-\r
-struct\r
-{\r
- uint8_t Pitch;\r
- uint8_t Velocity;\r
- \r
- uint8_t CurrentPos;\r
- uint8_t ElapsedTicks;\r
-} ChannelStates[10];\r
-\r
-/** Main program entry point. This routine contains the overall program flow, including initial\r
- * setup of all components and the main program loop.\r
- */\r
-int main(void)\r
-{\r
- SetupHardware();\r
-\r
- LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);\r
- \r
- for (;;)\r
- {\r
- MIDI_EventPacket_t ReceivedMIDIEvent;\r
- if (MIDI_Device_ReceiveEventPacket(&Keyboard_MIDI_Interface, &ReceivedMIDIEvent))\r
- {\r
- if (ReceivedMIDIEvent.Command == (MIDI_COMMAND_NOTE_ON >> 4))\r
- {\r
- ChannelStates[ReceivedMIDIEvent.Data1 & 0x0F].Pitch = ReceivedMIDIEvent.Data2;\r
- ChannelStates[ReceivedMIDIEvent.Data1 & 0x0F].Velocity = ReceivedMIDIEvent.Data3;\r
-\r
- LEDs_SetAllLEDs(LEDS_LED1);\r
- }\r
- else if (ReceivedMIDIEvent.Command == (MIDI_COMMAND_NOTE_OFF >> 4))\r
- {\r
- ChannelStates[ReceivedMIDIEvent.Data1 & 0x0F].Velocity = 0;\r
- \r
- LEDs_SetAllLEDs(LEDS_NO_LEDS);\r
- }\r
- }\r
-\r
- /* Check if the sample reload timer period has elapsed, and that the USB bus is ready for a new sample */\r
- if (TIFR0 & (1 << OCF0A))\r
- {\r
- /* Clear the sample reload timer */\r
- TIFR0 |= (1 << OCF0A);\r
-\r
- uint8_t OutputSample = 0;\r
- \r
- /* Loop through the channels (excluding percussion channel 10) and generate next sample */\r
- for (uint8_t Channel = 0; Channel < 9; Channel++)\r
- {\r
- /* Channel only contributes if it is not muted */\r
- if (ChannelStates[Channel].Velocity)\r
- {\r
- /* Fetch the current sample from the sine lookup table */\r
- uint8_t TableValue = pgm_read_byte(&SineTable[ChannelStates[Channel].CurrentPos]);\r
- \r
- /* Scale sample value by the velocity of the channel */\r
- TableValue = ((uint16_t)TableValue << 6) / ChannelStates[Channel].Velocity;\r
- \r
- /* Add the sample to the output waveform */\r
- OutputSample += TableValue;\r
- }\r
- \r
- /* Calculate next sample table position for this channel */\r
- ChannelStates[Channel].CurrentPos += ChannelStates[Channel].Pitch;\r
- }\r
- \r
- /* Output the sample to the PWM timer */\r
- OCR3A = OutputSample;\r
- }\r
- \r
- MIDI_Device_USBTask(&Keyboard_MIDI_Interface);\r
- USB_USBTask();\r
- }\r
-}\r
-\r
-/** Configures the board hardware and chip peripherals for the demo's functionality. */\r
-void SetupHardware(void)\r
-{\r
- /* Disable watchdog if enabled by bootloader/fuses */\r
- MCUSR &= ~(1 << WDRF);\r
- wdt_disable();\r
-\r
- /* Disable clock division */\r
- clock_prescale_set(clock_div_1);\r
- \r
- /* Hardware Initialization */\r
- LEDs_Init();\r
- USB_Init();\r
-\r
- /* Sample reload timer initialization */\r
- OCR0A = (F_CPU / 8 / AUDIO_SAMPLE_FREQUENCY) - 1;\r
- TCCR0A = (1 << WGM01); // CTC mode\r
- TCCR0B = (1 << CS01); // Fcpu/8 speed\r
-\r
- /* PWM speaker timer initialization */\r
- TCCR3A = ((1 << WGM30) | (1 << COM3A1) | (1 << COM3A0)); // Set on match, clear on TOP\r
- TCCR3B = ((1 << WGM32) | (1 << CS30)); // Fast 8-Bit PWM, Fcpu speed\r
-}\r
-\r
-/** Event handler for the library USB Connection event. */\r
-void EVENT_USB_Device_Connect(void)\r
-{\r
- LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);\r
-\r
- /* Set speaker as output */\r
- DDRC |= (1 << 6);\r
-}\r
-\r
-/** Event handler for the library USB Disconnection event. */\r
-void EVENT_USB_Device_Disconnect(void)\r
-{\r
- LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);\r
-\r
- /* Set speaker as input to reduce current draw */\r
- DDRC &= ~(1 << 6);\r
-}\r
-\r
-/** Event handler for the library USB Configuration Changed event. */\r
-void EVENT_USB_Device_ConfigurationChanged(void)\r
-{\r
- LEDs_SetAllLEDs(LEDMASK_USB_READY);\r
- \r
- if (!(MIDI_Device_ConfigureEndpoints(&Keyboard_MIDI_Interface)))\r
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
-}\r
-\r
-/** Event handler for the library USB Unhandled Control Request event. */\r
-void EVENT_USB_Device_UnhandledControlRequest(void)\r
-{\r
- MIDI_Device_ProcessControlRequest(&Keyboard_MIDI_Interface);\r
-}\r
+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2010.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.fourwalledcubicle.com
+*/
+
+/*
+ Copyright 2010 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
+ without fee, provided that the above copyright notice appear in
+ all copies and that both that the copyright notice and this
+ permission notice and warranty disclaimer appear in supporting
+ documentation, and that the name of the author not be used in
+ advertising or publicity pertaining to distribution of the
+ software without specific, written prior permission.
+
+ The author disclaim 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
+ whatsoever resulting from loss of use, data or profits, whether
+ in an action of contract, negligence or other tortious action,
+ arising out of or in connection with the use or performance of
+ this software.
+*/
+
+/** \file
+ *
+ * Main source file for the MIDI demo. This file contains the main tasks of
+ * the demo and is responsible for the initial application hardware configuration.
+ */
+
+#include "MIDIToneGenerator.h"
+
+/** LUFA MIDI Class driver interface configuration and state information. This structure is
+ * passed to all MIDI Class driver functions, so that multiple instances of the same class
+ * within a device can be differentiated from one another.
+ */
+USB_ClassInfo_MIDI_Device_t Keyboard_MIDI_Interface =
+ {
+ .Config =
+ {
+ .StreamingInterfaceNumber = 1,
+
+ .DataINEndpointNumber = MIDI_STREAM_IN_EPNUM,
+ .DataINEndpointSize = MIDI_STREAM_EPSIZE,
+ .DataINEndpointDoubleBank = false,
+
+ .DataOUTEndpointNumber = MIDI_STREAM_OUT_EPNUM,
+ .DataOUTEndpointSize = MIDI_STREAM_EPSIZE,
+ .DataOUTEndpointDoubleBank = false,
+ },
+ };
+
+const uint8_t SineTable[] PROGMEM =
+{
+ 0x80, 0x83, 0x86, 0x89, 0x8c, 0x8f, 0x92, 0x95, 0x98, 0x9c, 0x9f, 0xa2, 0xa5, 0xa8, 0xab, 0xae,
+ 0xb0, 0xb3, 0xb6, 0xb9, 0xbc, 0xbf, 0xc1, 0xc4, 0xc7, 0xc9, 0xcc, 0xce, 0xd1, 0xd3, 0xd5, 0xd8,
+ 0xda, 0xdc, 0xde, 0xe0, 0xe2, 0xe4, 0xe6, 0xe8, 0xea, 0xec, 0xed, 0xef, 0xf0, 0xf2, 0xf3, 0xf5,
+ 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfc, 0xfd, 0xfe, 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xfe, 0xfd, 0xfc, 0xfc, 0xfb, 0xfa, 0xf9, 0xf8, 0xf7,
+ 0xf6, 0xf5, 0xf3, 0xf2, 0xf0, 0xef, 0xed, 0xec, 0xea, 0xe8, 0xe6, 0xe4, 0xe2, 0xe0, 0xde, 0xdc,
+ 0xda, 0xd8, 0xd5, 0xd3, 0xd1, 0xce, 0xcc, 0xc9, 0xc7, 0xc4, 0xc1, 0xbf, 0xbc, 0xb9, 0xb6, 0xb3,
+ 0xb0, 0xae, 0xab, 0xa8, 0xa5, 0xa2, 0x9f, 0x9c, 0x98, 0x95, 0x92, 0x8f, 0x8c, 0x89, 0x86, 0x83,
+ 0x80, 0x7c, 0x79, 0x76, 0x73, 0x70, 0x6d, 0x6a, 0x67, 0x63, 0x60, 0x5d, 0x5a, 0x57, 0x54, 0x51,
+ 0x4f, 0x4c, 0x49, 0x46, 0x43, 0x40, 0x3e, 0x3b, 0x38, 0x36, 0x33, 0x31, 0x2e, 0x2c, 0x2a, 0x27,
+ 0x25, 0x23, 0x21, 0x1f, 0x1d, 0x1b, 0x19, 0x17, 0x15, 0x13, 0x12, 0x10, 0x0f, 0x0d, 0x0c, 0x0a,
+ 0x09, 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x03, 0x02, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x02, 0x03, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
+ 0x09, 0x0a, 0x0c, 0x0d, 0x0f, 0x10, 0x12, 0x13, 0x15, 0x17, 0x19, 0x1b, 0x1d, 0x1f, 0x21, 0x23,
+ 0x25, 0x27, 0x2a, 0x2c, 0x2e, 0x31, 0x33, 0x36, 0x38, 0x3b, 0x3e, 0x40, 0x43, 0x46, 0x49, 0x4c,
+ 0x4f, 0x51, 0x54, 0x57, 0x5a, 0x5d, 0x60, 0x63, 0x67, 0x6a, 0x6d, 0x70, 0x73, 0x76, 0x79, 0x7c
+};
+
+uint8_t Pitch;
+uint8_t Velocity;
+uint8_t CurrentPos;
+
+/** Main program entry point. This routine contains the overall program flow, including initial
+ * setup of all components and the main program loop.
+ */
+int main(void)
+{
+ SetupHardware();
+
+ LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
+ sei();
+
+ for (;;)
+ {
+ MIDI_EventPacket_t ReceivedMIDIEvent;
+ if (MIDI_Device_ReceiveEventPacket(&Keyboard_MIDI_Interface, &ReceivedMIDIEvent))
+ {
+ if ((ReceivedMIDIEvent.Command == (MIDI_COMMAND_NOTE_ON >> 4)) && ((ReceivedMIDIEvent.Data1 & 0x0F) == 0))
+ {
+ Pitch = ReceivedMIDIEvent.Data2;
+ Velocity = ReceivedMIDIEvent.Data3;
+
+ LEDs_SetAllLEDs(LEDS_LED1);
+ }
+ else if ((ReceivedMIDIEvent.Command == (MIDI_COMMAND_NOTE_OFF >> 4)) && ((ReceivedMIDIEvent.Data1 & 0x0F) == 0))
+ {
+ Velocity = 0;
+
+ LEDs_SetAllLEDs(LEDS_NO_LEDS);
+ }
+ }
+
+ /* Check if the sample reload timer period has elapsed, and that the USB bus is ready for a new sample */
+ if (TIFR0 & (1 << OCF0A))
+ {
+ /* Clear the sample reload timer */
+ TIFR0 |= (1 << OCF0A);
+
+ /* Fetch the current sample from the sine lookup table */
+ OCR3A = Velocity ? pgm_read_byte(&SineTable[CurrentPos]) : 0;
+
+ /* Calculate next sample table position for this channel */
+ CurrentPos += (Pitch >> 1);
+ }
+
+ MIDI_Device_USBTask(&Keyboard_MIDI_Interface);
+ USB_USBTask();
+ }
+}
+
+/** Configures the board hardware and chip peripherals for the demo's functionality. */
+void SetupHardware(void)
+{
+ /* Disable watchdog if enabled by bootloader/fuses */
+ MCUSR &= ~(1 << WDRF);
+ wdt_disable();
+
+ /* Disable clock division */
+ clock_prescale_set(clock_div_1);
+
+ /* Hardware Initialization */
+ LEDs_Init();
+ USB_Init();
+
+ /* Sample reload timer initialization */
+ OCR0A = (F_CPU / 8 / AUDIO_SAMPLE_FREQUENCY) - 1;
+ TCCR0A = (1 << WGM01); // CTC mode
+ TCCR0B = (1 << CS01); // Fcpu/8 speed
+
+ /* PWM speaker timer initialization */
+ TCCR3A = ((1 << WGM30) | (1 << COM3A1) | (1 << COM3A0)); // Set on match, clear on TOP
+ TCCR3B = ((1 << WGM32) | (1 << CS30)); // Fast 8-Bit PWM, F_CPU speed
+}
+
+/** Event handler for the library USB Connection event. */
+void EVENT_USB_Device_Connect(void)
+{
+ LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
+
+ /* Set speaker as output */
+ DDRC |= (1 << 6);
+}
+
+/** Event handler for the library USB Disconnection event. */
+void EVENT_USB_Device_Disconnect(void)
+{
+ LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
+
+ /* Set speaker as input to reduce current draw */
+ DDRC &= ~(1 << 6);
+}
+
+/** Event handler for the library USB Configuration Changed event. */
+void EVENT_USB_Device_ConfigurationChanged(void)
+{
+ bool ConfigSuccess = true;
+
+ ConfigSuccess &= MIDI_Device_ConfigureEndpoints(&Keyboard_MIDI_Interface);
+
+ LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
+}
+
+/** Event handler for the library USB Unhandled Control Request event. */
+void EVENT_USB_Device_UnhandledControlRequest(void)
+{
+ MIDI_Device_ProcessControlRequest(&Keyboard_MIDI_Interface);
+}
projects / pub / USBasp.git / blobdiff