X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/d97db1120b2b5911a3ea7d77efb9b913b8727bdb..02dfd7dc3ddf5f485bdd47d45867fa58b569ca2f:/LUFA/Drivers/USB/Class/Host/MIDI.h diff --git a/LUFA/Drivers/USB/Class/Host/MIDI.h b/LUFA/Drivers/USB/Class/Host/MIDI.h index 7b1cba395..fc31d401d 100644 --- a/LUFA/Drivers/USB/Class/Host/MIDI.h +++ b/LUFA/Drivers/USB/Class/Host/MIDI.h @@ -1,188 +1,198 @@ -/* - 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. -*/ - -/** \ingroup Group_USBClassMIDI - * @defgroup Group_USBClassMIDIHost MIDI Class Host Mode Driver - * - * \section Sec_Dependencies Module Source Dependencies - * The following files must be built with any user project that uses this module: - * - LUFA/Drivers/USB/Class/Host/MIDI.c - * - * \section Module Description - * Host Mode USB Class driver framework interface, for the MIDI USB Class driver. - * - * @{ - */ - -#ifndef __MIDI_CLASS_HOST_H__ -#define __MIDI_CLASS_HOST_H__ - - /* Includes: */ - #include "../../USB.h" - #include "../Common/MIDI.h" - - /* Enable C linkage for C++ Compilers: */ - #if defined(__cplusplus) - extern "C" { - #endif - - /* Public Interface - May be used in end-application: */ - /* Type Defines: */ - /** Class state structure. An instance of this structure should be made within the user application, - * and passed to each of the MIDI class driver functions as the MIDIInterfaceInfo parameter. This - * stores each MIDI interface's configuration and state information. - */ - typedef struct - { - const struct - { - uint8_t DataINPipeNumber; /**< Pipe number of the MIDI interface's streaming IN data pipe */ - bool DataINPipeDoubleBank; /** Indicates if the MIDI interface's IN data pipe should use double banking */ - - uint8_t DataOUTPipeNumber; /**< Pipe number of the MIDI interface's streaming OUT data pipe */ - bool DataOUTPipeDoubleBank; /** Indicates if the MIDI interface's OUT data pipe should use double banking */ - } Config; /**< Config data for the USB class interface within the device. All elements in this section - * must be set or the interface will fail to enumerate and operate correctly. - */ - struct - { - bool IsActive; /**< Indicates if the current interface instance is connected to an attached device, valid - * after \ref MIDI_Host_ConfigurePipes() is called and the Host state machine is in the - * Configured state - */ - - uint16_t DataINPipeSize; /**< Size in bytes of the MIDI Streaming Data interface's IN data pipe */ - uint16_t DataOUTPipeSize; /**< Size in bytes of the MIDI Streaming Data interface's OUT data pipe */ - } State; /**< State data for the USB class interface within the device. All elements in this section - * may be set to initial values, but may also be ignored to default to sane values when - * the interface is enumerated. - */ - } USB_ClassInfo_MIDI_Host_t; - - /* Enums: */ - /** Enum for the possible error codes returned by the \ref MIDI_Host_ConfigurePipes() function. */ - enum MIDIHost_EnumerationFailure_ErrorCodes_t - { - MIDI_ENUMERROR_NoError = 0, /**< Configuration Descriptor was processed successfully */ - MIDI_ENUMERROR_InvalidConfigDescriptor = 1, /**< The device returned an invalid Configuration Descriptor */ - MIDI_ENUMERROR_NoStreamingInterfaceFound = 2, /**< A compatible MIDI interface was not found in the device's Configuration Descriptor */ - MIDI_ENUMERROR_EndpointsNotFound = 3, /**< Compatible MIDI data endpoints were not found in the device's MIDI interface */ - }; - - /* Function Prototypes: */ - /** Host interface configuration routine, to configure a given MIDI host interface instance using the Configuration - * Descriptor read from an attached USB device. This function automatically updates the given MIDI Host instance's - * state values and configures the pipes required to communicate with the interface if it is found within the device. - * This should be called once after the stack has enumerated the attached device, while the host state machine is in - * the Addressed state. - * - * \param[in,out] MIDIInterfaceInfo Pointer to a structure containing an MIDI Class host configuration and state - * \param[in] ConfigDescriptorSize Length of the attached device's Configuration Descriptor - * \param[in] DeviceConfigDescriptor Pointer to a buffer containing the attached device's Configuration Descriptor - * - * \return A value from the \ref MIDIHost_EnumerationFailure_ErrorCodes_t enum - */ - uint8_t MIDI_Host_ConfigurePipes(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo, uint16_t ConfigDescriptorSize, - void* DeviceConfigDescriptor) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(3); - - /** Sends a MIDI event packet to the device. If no device is connected, the event packet is discarded. - * - * \note This function must only be called when the Host state machine is in the HOST_STATE_Configured state or the - * call will fail. - * - * \param[in,out] MIDIInterfaceInfo Pointer to a structure containing a MIDI Class configuration and state - * \param[in] Event Pointer to a populated USB_MIDI_EventPacket_t structure containing the MIDI event to send - * - * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum - */ - uint8_t MIDI_Host_SendEventPacket(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo, - MIDI_EventPacket_t* const Event) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2); - - /** Flushes the MIDI send buffer, sending any queued MIDI events to the device. This should be called to override the - * \ref MIDI_Host_SendEventPacket() function's packing behaviour, to flush queued events. Events are queued into the - * pipe bank until either the pipe bank is full, or \ref MIDI_Host_Flush() is called. This allows for multiple MIDI - * events to be packed into a single pipe packet, increasing data throughput. - * - * \param[in,out] MIDIInterfaceInfo Pointer to a structure containing a MIDI Class configuration and state - * - * \return A value from the \ref Pipe_WaitUntilReady_ErrorCodes_t enum - */ - uint8_t MIDI_Host_Flush(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo); - - /** Receives a MIDI event packet from the device. - * - * \note This function must only be called when the Host state machine is in the HOST_STATE_Configured state or the - * call will fail. - * - * \param[in,out] MIDIInterfaceInfo Pointer to a structure containing a MIDI Class configuration and state - * \param[out] Event Pointer to a USB_MIDI_EventPacket_t structure where the received MIDI event is to be placed - * - * \return Boolean true if a MIDI event packet was received, false otherwise - */ - bool MIDI_Host_ReceiveEventPacket(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo, - MIDI_EventPacket_t* const Event) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2); - - /* Inline Functions: */ - /** General management task for a given MIDI host class interface, required for the correct operation of the interface. This should - * be called frequently in the main program loop, before the master USB management task \ref USB_USBTask(). - * - * \param[in,out] MIDIInterfaceInfo Pointer to a structure containing an MIDI Class host configuration and state - */ - static inline void MIDI_Host_USBTask(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo); - static inline void MIDI_Host_USBTask(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo) - { - (void)MIDIInterfaceInfo; - } - - /* Private Interface - For use in library only: */ - #if !defined(__DOXYGEN__) - /* Macros: */ - #define MIDI_STREAMING_CLASS 0x01 - #define MIDI_STREAMING_SUBCLASS 0x03 - #define MIDI_STREAMING_PROTOCOL 0x00 - - #define MIDI_FOUND_DATAPIPE_IN (1 << 0) - #define MIDI_FOUND_DATAPIPE_OUT (1 << 1) - - /* Function Prototypes: */ - #if defined(INCLUDE_FROM_MIDI_CLASS_HOST_C) - static uint8_t DComp_MIDI_Host_NextMIDIStreamingInterface(void* const CurrentDescriptor) ATTR_NON_NULL_PTR_ARG(1); - static uint8_t DComp_MIDI_Host_NextMIDIStreamingDataEndpoint(void* const CurrentDescriptor) ATTR_NON_NULL_PTR_ARG(1); - #endif - #endif - - /* Disable C linkage for C++ Compilers: */ - #if defined(__cplusplus) - } - #endif - -#endif - -/** @} */ +/* + LUFA Library + Copyright (C) Dean Camera, 2011. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2011 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 + * \brief Host mode driver for the library USB MIDI Class driver. + * + * Host mode driver for the library USB MIDI Class driver. + * + * \note This file should not be included directly. It is automatically included as needed by the USB module driver + * dispatch header located in LUFA/Drivers/USB.h. + */ + +/** \ingroup Group_USBClassMIDI + * \defgroup Group_USBClassMIDIHost MIDI Class Host Mode Driver + * + * \section Sec_Dependencies Module Source Dependencies + * The following files must be built with any user project that uses this module: + * - LUFA/Drivers/USB/Class/Host/MIDI.c (Makefile source module name: LUFA_SRC_USBCLASS) + * + * \section Sec_ModDescription Module Description + * Host Mode USB Class driver framework interface, for the MIDI USB Class driver. + * + * @{ + */ + +#ifndef __MIDI_CLASS_HOST_H__ +#define __MIDI_CLASS_HOST_H__ + + /* Includes: */ + #include "../../USB.h" + #include "../Common/MIDI.h" + + /* Enable C linkage for C++ Compilers: */ + #if defined(__cplusplus) + extern "C" { + #endif + + /* Preprocessor Checks: */ + #if !defined(__INCLUDE_FROM_MIDI_DRIVER) + #error Do not include this file directly. Include LUFA/Drivers/USB.h instead. + #endif + + /* Public Interface - May be used in end-application: */ + /* Type Defines: */ + /** \brief MIDI Class Host Mode Configuration and State Structure. + * + * Class state structure. An instance of this structure should be made within the user application, + * and passed to each of the MIDI class driver functions as the \c MIDIInterfaceInfo parameter. This + * stores each MIDI interface's configuration and state information. + */ + typedef struct + { + const struct + { + uint8_t DataINPipeNumber; /**< Pipe number of the MIDI interface's streaming IN data pipe. */ + bool DataINPipeDoubleBank; /**< Indicates if the MIDI interface's IN data pipe should use double banking. */ + + uint8_t DataOUTPipeNumber; /**< Pipe number of the MIDI interface's streaming OUT data pipe. */ + bool DataOUTPipeDoubleBank; /**< Indicates if the MIDI interface's OUT data pipe should use double banking. */ + } Config; /**< Config data for the USB class interface within the device. All elements in this section + * must be set or the interface will fail to enumerate and operate correctly. + */ + struct + { + bool IsActive; /**< Indicates if the current interface instance is connected to an attached device, valid + * after \ref MIDI_Host_ConfigurePipes() is called and the Host state machine is in the + * Configured state. + */ + uint8_t InterfaceNumber; /**< Interface index of the MIDI interface within the attached device. */ + + uint16_t DataINPipeSize; /**< Size in bytes of the MIDI Streaming Data interface's IN data pipe. */ + uint16_t DataOUTPipeSize; /**< Size in bytes of the MIDI Streaming Data interface's OUT data pipe. */ + } State; /**< State data for the USB class interface within the device. All elements in this section + * may be set to initial values, but may also be ignored to default to sane values when + * the interface is enumerated. + */ + } USB_ClassInfo_MIDI_Host_t; + + /* Enums: */ + /** Enum for the possible error codes returned by the \ref MIDI_Host_ConfigurePipes() function. */ + enum MIDI_Host_EnumerationFailure_ErrorCodes_t + { + MIDI_ENUMERROR_NoError = 0, /**< Configuration Descriptor was processed successfully. */ + MIDI_ENUMERROR_InvalidConfigDescriptor = 1, /**< The device returned an invalid Configuration Descriptor. */ + MIDI_ENUMERROR_NoCompatibleInterfaceFound = 2, /**< A compatible MIDI interface was not found in the device's Configuration Descriptor. */ + MIDI_ENUMERROR_PipeConfigurationFailed = 3, /**< One or more pipes for the specified interface could not be configured correctly. */ + }; + + /* Function Prototypes: */ + /** Host interface configuration routine, to configure a given MIDI host interface instance using the Configuration + * Descriptor read from an attached USB device. This function automatically updates the given MIDI Host instance's + * state values and configures the pipes required to communicate with the interface if it is found within the device. + * This should be called once after the stack has enumerated the attached device, while the host state machine is in + * the Addressed state. + * + * \note The pipe index numbers as given in the interface's configuration structure must not overlap with any other + * interface, or pipe bank corruption will occur. Gaps in the allocated pipe numbers or non-sequential indexes + * within a single interface is allowed, but no two interfaces of any type have have interleaved pipe indexes. + * + * \param[in,out] MIDIInterfaceInfo Pointer to a structure containing an MIDI Class host configuration and state. + * \param[in] ConfigDescriptorSize Length of the attached device's Configuration Descriptor. + * \param[in] DeviceConfigDescriptor Pointer to a buffer containing the attached device's Configuration Descriptor. + * + * \return A value from the \ref MIDI_Host_EnumerationFailure_ErrorCodes_t enum. + */ + uint8_t MIDI_Host_ConfigurePipes(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo, + uint16_t ConfigDescriptorSize, + void* DeviceConfigDescriptor) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(3); + + /** General management task for a given MIDI host class interface, required for the correct operation of the interface. This should + * be called frequently in the main program loop, before the master USB management task \ref USB_USBTask(). + * + * \param[in,out] MIDIInterfaceInfo Pointer to a structure containing an MIDI Class host configuration and state. + */ + void MIDI_Host_USBTask(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); + + /** Sends a MIDI event packet to the device. If no device is connected, the event packet is discarded. + * + * \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the + * call will fail. + * + * \param[in,out] MIDIInterfaceInfo Pointer to a structure containing a MIDI Class configuration and state. + * \param[in] Event Pointer to a populated USB_MIDI_EventPacket_t structure containing the MIDI event to send. + * + * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum. + */ + uint8_t MIDI_Host_SendEventPacket(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo, + MIDI_EventPacket_t* const Event) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2); + + /** Flushes the MIDI send buffer, sending any queued MIDI events to the device. This should be called to override the + * \ref MIDI_Host_SendEventPacket() function's packing behaviour, to flush queued events. Events are queued into the + * pipe bank until either the pipe bank is full, or \ref MIDI_Host_Flush() is called. This allows for multiple MIDI + * events to be packed into a single pipe packet, increasing data throughput. + * + * \param[in,out] MIDIInterfaceInfo Pointer to a structure containing a MIDI Class configuration and state. + * + * \return A value from the \ref Pipe_WaitUntilReady_ErrorCodes_t enum. + */ + uint8_t MIDI_Host_Flush(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); + + /** Receives a MIDI event packet from the device. + * + * \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the + * call will fail. + * + * \param[in,out] MIDIInterfaceInfo Pointer to a structure containing a MIDI Class configuration and state. + * \param[out] Event Pointer to a USB_MIDI_EventPacket_t structure where the received MIDI event is to be placed. + * + * \return Boolean \c true if a MIDI event packet was received, \c false otherwise. + */ + bool MIDI_Host_ReceiveEventPacket(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo, + MIDI_EventPacket_t* const Event) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2); + + /* Private Interface - For use in library only: */ + #if !defined(__DOXYGEN__) + /* Function Prototypes: */ + #if defined(__INCLUDE_FROM_MIDI_HOST_C) + static uint8_t DCOMP_MIDI_Host_NextMIDIStreamingInterface(void* const CurrentDescriptor) ATTR_NON_NULL_PTR_ARG(1); + static uint8_t DCOMP_MIDI_Host_NextMIDIStreamingDataEndpoint(void* const CurrentDescriptor) ATTR_NON_NULL_PTR_ARG(1); + #endif + #endif + + /* Disable C linkage for C++ Compilers: */ + #if defined(__cplusplus) + } + #endif + +#endif + +/** @} */ +