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midi_usb.h
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/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
2011,2012,2013 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/RT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file midi_usb.h
* @brief MIDI USB Driver macros and structures.
*
* @addtogroup MIDI_USB
* @{
*/
#ifndef_MIDI_USB_H_
#define_MIDI_USB_H_
#if1//HAL_USE_MIDI_USB || defined(__DOXYGEN__)
#include"hal.h"
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/**
* @name MIDI_USB configuration options
* @{
*/
/**
* @brief Midi USB buffers size.
* @details Configuration parameter, the buffer size must be a multiple of
* the USB data endpoint maximum packet size.
* @note The default is 64 bytes for both the transmission and receive
* buffers.
*/
#if !defined(MIDI_USB_BUFFERS_SIZE)|| defined(__DOXYGEN__)
#defineMIDI_USB_BUFFERS_SIZE 64
#endif
/**
* @brief Midi USB number of buffers.
* @note The default is 2 buffers.
*/
#if !defined(MIDI_USB_BUFFERS_NUMBER)|| defined(__DOXYGEN__)
#defineMIDI_USB_BUFFERS_NUMBER 2
#endif
/** @} */
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
#ifHAL_USE_USB==FALSE
#error "Midi USB Driver requires HAL_USE_USB"
#endif
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
/**
* @brief Driver state machine possible states.
*/
typedefenum {
MDU_UNINIT=0,/**< Not initialized. */
MDU_STOP=1,/**< Stopped. */
MDU_READY=2/**< Ready. */
}mdustate_t;
/**
* @brief Structure representing a midi USB driver.
*/
typedefstructMidiUSBDriverMidiUSBDriver;
/**
* @brief Midi USB Driver configuration structure.
* @details An instance of this structure must be passed to @p mduStart()
* in order to configure and start the driver operations.
*/
typedefstruct {
/**
* @brief USB driver to use.
*/
USBDriver*usbp;
/**
* @brief Bulk IN endpoint used for outgoing data transfer.
*/
usbep_tbulk_in;
/**
* @brief Bulk OUT endpoint used for incoming data transfer.
*/
usbep_tbulk_out;
}MidiUSBConfig;
/**
* @brief @p MidiUSBDriver specific data.
*/
#define_midi_usb_driver_data \
_base_asynchronous_channel_data \
/* Driver state.*/ \
mdustate_tstate; \
/* Input buffers queue.*/ \
input_buffers_queue_tibqueue; \
/* Output queue.*/ \
output_buffers_queue_tobqueue; \
/* Input buffer.*/ \
uint8_tib[BQ_BUFFER_SIZE(MIDI_USB_BUFFERS_NUMBER, \
MIDI_USB_BUFFERS_SIZE)]; \
/* Output buffer.*/ \
uint8_tob[BQ_BUFFER_SIZE(MIDI_USB_BUFFERS_NUMBER, \
MIDI_USB_BUFFERS_SIZE)]; \
/* End of the mandatory fields.*/ \
/* Current configuration data.*/ \
constMidiUSBConfig*config;
/**
* @brief @p MidiUSBDriver specific methods.
*/
#define_midi_usb_driver_methods \
_base_asynchronous_channel_methods
/**
* @extends BaseAsynchronousChannelVMT
*
* @brief @p MidiUSBDriver virtual methods table.
*/
structMidiUSBDriverVMT {
_midi_usb_driver_methods
};
/**
* @extends BaseAsynchronousChannel
*
* @brief Full duplex midi driver class.
* @details This class extends @p BaseAsynchronousChannel by adding physical
* I/O queues.
*/
structMidiUSBDriver {
/** @brief Virtual Methods Table.*/
conststructMidiUSBDriverVMT*vmt;
_midi_usb_driver_data
};
/*===========================================================================*/
/* Driver macros. */
/*===========================================================================*/
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#ifdef__cplusplus
extern "C" {
#endif
voidmduInit(void);
voidmduObjectInit(MidiUSBDriver*mdup);
voidmduStart(MidiUSBDriver*mdup,constMidiUSBConfig*config);
voidmduStop(MidiUSBDriver*mdup);
voidmduSuspendHookI(MidiUSBDriver*mdup);
voidmduWakeupHookI(MidiUSBDriver*mdup);
voidmduConfigureHookI(MidiUSBDriver*mdup);
boolmduRequestsHook(USBDriver*usbp);
voidmduSOFHookI(MidiUSBDriver*mdup);
voidmduDataTransmitted(USBDriver*usbp,usbep_tep);
voidmduDataReceived(USBDriver*usbp,usbep_tep);
voidmduInterruptTransmitted(USBDriver*usbp,usbep_tep);
msg_tmduControl(USBDriver*usbp,unsignedintoperation,void*arg);
voidmidi_usb_MidiSend1(uint8_tport,uint8_tb0);
voidmidi_usb_MidiSend2(uint8_tport,uint8_tb0,uint8_tb1);
voidmidi_usb_MidiSend3(uint8_tport,uint8_tb0,uint8_tb1,uint8_tb2);
#ifdef__cplusplus
}
#endif
#endif/* HAL_USE_MIDI_USB */
#endif/* _MIDI_USB_H_ */
/** @} */