X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/071e02c6b6b4837fa9cf0b6d4c749994e02638d7..a9abe1fdea5ccf67aaccab6fdde300d6fcf2d15a:/Demos/Host/ClassDriver/MIDIHost/MIDIHost.c?ds=inline diff --git a/Demos/Host/ClassDriver/MIDIHost/MIDIHost.c b/Demos/Host/ClassDriver/MIDIHost/MIDIHost.c index 108c807c6..8293fbd3b 100644 --- a/Demos/Host/ClassDriver/MIDIHost/MIDIHost.c +++ b/Demos/Host/ClassDriver/MIDIHost/MIDIHost.c @@ -1,21 +1,21 @@ /* LUFA Library - Copyright (C) Dean Camera, 2010. - + Copyright (C) Dean Camera, 2012. + dean [at] fourwalledcubicle [dot] com - www.fourwalledcubicle.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 + 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" /** LUFA MIDI Class driver interface configuration and state information. This structure is @@ -46,13 +46,13 @@ USB_ClassInfo_MIDI_Host_t Keyboard_MIDI_Interface = { .DataINPipeNumber = 1, .DataINPipeDoubleBank = false, - + .DataOUTPipeNumber = 2, .DataOUTPipeDoubleBank = false, }, }; - + /** Main program entry point. This routine configures the hardware required by the application, then * enters a loop to run the application tasks in sequence. */ @@ -67,64 +67,8 @@ int main(void) 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; - if (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(); } @@ -141,24 +85,56 @@ void SetupHardware(void) 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; 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)); @@ -167,43 +143,39 @@ void CheckJoystickMovement(void) 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; } - + if (MIDICommand) { 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, }; - + MIDI_Host_SendEventPacket(&Keyboard_MIDI_Interface, &MIDIEvent); MIDI_Host_Flush(&Keyboard_MIDI_Interface); } @@ -234,13 +206,42 @@ void EVENT_USB_Host_DeviceUnattached(void) */ 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); @@ -252,12 +253,14 @@ 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); } +