X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/071e02c6b6b4837fa9cf0b6d4c749994e02638d7..ec537fd84d6ad3fd0dfa1b55efa2c2d554c1db48:/Demos/Host/LowLevel/MIDIHost/MIDIHost.c diff --git a/Demos/Host/LowLevel/MIDIHost/MIDIHost.c b/Demos/Host/LowLevel/MIDIHost/MIDIHost.c index 9c8190286..5ff3baa39 100644 --- a/Demos/Host/LowLevel/MIDIHost/MIDIHost.c +++ b/Demos/Host/LowLevel/MIDIHost/MIDIHost.c @@ -1,21 +1,21 @@ /* LUFA Library Copyright (C) Dean Camera, 2010. - + dean [at] fourwalledcubicle [dot] com - www.fourwalledcubicle.com + www.lufa-lib.org */ /* Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) - Permission to use, copy, modify, distribute, and sell this + 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 + 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 + 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 @@ -33,7 +33,7 @@ * Main source file for the MIDIHost demo. This file contains the main tasks of * the demo and is responsible for the initial application hardware configuration. */ - + #include "MIDIHost.h" /** Main program entry point. This routine configures the hardware required by the application, then @@ -114,13 +114,14 @@ void EVENT_USB_Host_HostError(const uint8_t ErrorCode) /** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while * enumerating an attached USB device. */ -void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode, const uint8_t SubErrorCode) +void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode, + const uint8_t SubErrorCode) { printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n" " -- Error Code %d\r\n" " -- Sub Error Code %d\r\n" " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState); - + LEDs_SetAllLEDs(LEDMASK_USB_ERROR); } @@ -136,7 +137,7 @@ void MIDI_Host_Task(void) { case HOST_STATE_Addressed: puts_P(PSTR("Getting Config Data.\r\n")); - + /* Get and process the configuration descriptor data */ if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead) { @@ -146,7 +147,7 @@ void MIDI_Host_Task(void) puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n")); printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode); - + /* Indicate error via status LEDs */ LEDs_SetAllLEDs(LEDMASK_USB_ERROR); @@ -154,7 +155,7 @@ void MIDI_Host_Task(void) USB_HostState = HOST_STATE_WaitForDeviceRemoval; break; } - + /* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */ if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful) { @@ -174,39 +175,39 @@ void MIDI_Host_Task(void) USB_HostState = HOST_STATE_Configured; break; case HOST_STATE_Configured: - Pipe_SelectPipe(MIDI_DATAPIPE_IN); - + Pipe_SelectPipe(MIDI_DATA_IN_PIPE); + if (Pipe_IsINReceived()) { - USB_MIDI_EventPacket_t MIDIEvent; - + MIDI_EventPacket_t MIDIEvent; + Pipe_Read_Stream_LE(&MIDIEvent, sizeof(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); } - - Pipe_ClearIN(); + + if (!(Pipe_BytesInPipe())) + Pipe_ClearIN(); } - - Pipe_SelectPipe(MIDI_DATAPIPE_OUT); - - static uint8_t PrevJoystickStatus; + + Pipe_SelectPipe(MIDI_DATA_OUT_PIPE); 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)); @@ -227,7 +228,7 @@ void MIDI_Host_Task(void) 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); @@ -243,23 +244,23 @@ void MIDI_Host_Task(void) /* Check if a MIDI command is to be sent */ if (MIDICommand) { - USB_MIDI_EventPacket_t MIDIEvent = (USB_MIDI_EventPacket_t) + MIDI_EventPacket_t MIDIEvent = (MIDI_EventPacket_t) { .CableNumber = 0, .Command = (MIDICommand >> 4), - + .Data1 = MIDICommand | Channel, .Data2 = MIDIPitch, - .Data3 = MIDI_STANDARD_VELOCITY, + .Data3 = MIDI_STANDARD_VELOCITY, }; - + /* Write the MIDI event packet to the pipe */ Pipe_Write_Stream_LE(&MIDIEvent, sizeof(MIDIEvent)); - + /* Send the data in the pipe to the device */ Pipe_ClearOUT(); } - + /* Save previous joystick value for next joystick change detection */ PrevJoystickStatus = JoystickStatus; } @@ -267,3 +268,4 @@ void MIDI_Host_Task(void) break; } } +