/*
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
+ 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
*
* \section Sec_Dependencies Module Source Dependencies
* The following files must be built with any user project that uses this module:
- * - LUFA/Drivers/USB/Class/Device/MIDI.c
+ * - LUFA/Drivers/USB/Class/Device/MIDI.c <i>(Makefile source module name: LUFA_SRC_USBCLASS)</i>
*
* \section Module Description
* Device Mode USB Class driver framework interface, for the MIDI USB Class driver.
{
const struct
{
- uint8_t StreamingInterfaceNumber; /**< Index of the Audio Streaming interface within the device this structure controls */
+ uint8_t StreamingInterfaceNumber; /**< Index of the Audio Streaming interface within the device this structure controls. */
- uint8_t DataINEndpointNumber; /**< Endpoint number of the incoming MIDI data, if available (zero if unused) */
- uint16_t DataINEndpointSize; /**< Size in bytes of the incoming MIDI data endpoint, if available (zero if unused) */
- bool DataINEndpointDoubleBank; /**< Indicates if the MIDI interface's IN data endpoint should use double banking */
+ uint8_t DataINEndpointNumber; /**< Endpoint number of the incoming MIDI data, if available (zero if unused). */
+ uint16_t DataINEndpointSize; /**< Size in bytes of the incoming MIDI data endpoint, if available (zero if unused). */
+ bool DataINEndpointDoubleBank; /**< Indicates if the MIDI interface's IN data endpoint should use double banking. */
- uint8_t DataOUTEndpointNumber; /**< Endpoint number of the outgoing MIDI data, if available (zero if unused) */
- uint16_t DataOUTEndpointSize; /**< Size in bytes of the outgoing MIDI data endpoint, if available (zero if unused) */
- bool DataOUTEndpointDoubleBank; /**< Indicates if the MIDI interface's IN data endpoint should use double banking */
+ uint8_t DataOUTEndpointNumber; /**< Endpoint number of the outgoing MIDI data, if available (zero if unused). */
+ uint16_t DataOUTEndpointSize; /**< Size in bytes of the outgoing MIDI data endpoint, if available (zero if unused). */
+ bool DataOUTEndpointDoubleBank; /**< Indicates if the MIDI interface's IN data endpoint should use double banking. */
} Config; /**< Config data for the USB class interface within the device. All elements in this section
* <b>must</b> be set or the interface will fail to enumerate and operate correctly.
- */
+ */
struct
{
- // No state information for this class yet
+ // No state information for this class
} State; /**< State data for the USB class interface within the device. All elements in this section
* are reset to their defaults when the interface is enumerated.
*/
- } USB_ClassInfo_MIDI_Device_t;
-
+ } USB_ClassInfo_MIDI_Device_t;
+
/* Function Prototypes: */
/** Configures the endpoints of a given MIDI interface, ready for use. This should be linked to the library
* \ref EVENT_USB_Device_ConfigurationChanged() event so that the endpoints are configured when the configuration
* containing the given MIDI interface is selected.
*
- * \param[in,out] MIDIInterfaceInfo Pointer to a structure containing a MIDI Class configuration and state
+ * \note The endpoint index numbers as given in the interface's configuration structure must not overlap with any other
+ * interface, or endpoint bank corruption will occur. Gaps in the allocated endpoint numbers or non-sequential indexes
+ * within a single interface is allowed, but no two interfaces of any type have have interleaved endpoint indexes.
+ *
+ * \param[in,out] MIDIInterfaceInfo Pointer to a structure containing a MIDI Class configuration and state.
*
- * \return Boolean true if the endpoints were successfully configured, false otherwise
+ * \return Boolean true if the endpoints were successfully configured, false otherwise.
*/
bool MIDI_Device_ConfigureEndpoints(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
-
+
/** Sends a MIDI event packet to the host. If no host is connected, the event packet is discarded. Events are queued into the
* endpoint bank until either the endpoint bank is full, or \ref MIDI_Device_Flush() is called. This allows for multiple
* MIDI events to be packed into a single endpoint packet, increasing data throughput.
*
- * \note This function must only be called when the Device state machine is in the DEVICE_STATE_Configured state or
- * the call will fail.
+ * \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
+ * \param[in,out] MIDIInterfaceInfo Pointer to a structure containing a MIDI Class configuration and state.
+ * \param[in] Event Pointer to a populated \ref MIDI_EventPacket_t structure containing the MIDI event to send.
*
- * \return A value from the \ref Endpoint_Stream_RW_ErrorCodes_t enum
+ * \return A value from the \ref Endpoint_Stream_RW_ErrorCodes_t enum.
*/
uint8_t MIDI_Device_SendEventPacket(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo,
- MIDI_EventPacket_t* const Event) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
+ const 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 host. This should be called to override the
* \ref MIDI_Device_SendEventPacket() function's packing behaviour, to flush queued events.
*
- * \param[in,out] MIDIInterfaceInfo Pointer to a structure containing a MIDI Class configuration and state
+ * \param[in,out] MIDIInterfaceInfo Pointer to a structure containing a MIDI Class configuration and state.
*
- * \return A value from the \ref Endpoint_WaitUntilReady_ErrorCodes_t enum
+ * \return A value from the \ref Endpoint_WaitUntilReady_ErrorCodes_t enum.
*/
- uint8_t MIDI_Device_Flush(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo);
+ uint8_t MIDI_Device_Flush(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
/** Receives a MIDI event packet from the host. Events are unpacked from the endpoint, thus if the endpoint bank contains
* multiple MIDI events from the host in the one packet, multiple calls to this function will return each individual event.
*
- * \note This function must only be called when the Device state machine is in the DEVICE_STATE_Configured state or
- * the call will fail.
+ * \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
+ * \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
+ * \return Boolean true if a MIDI event packet was received, false otherwise.
*/
bool MIDI_Device_ReceiveEventPacket(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo,
MIDI_EventPacket_t* const Event) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
/** General management task for a given MIDI 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 a MIDI Class configuration and state
+ * \param[in,out] MIDIInterfaceInfo Pointer to a structure containing a MIDI Class configuration and state.
*/
- static inline void MIDI_Device_USBTask(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo);
+ static inline void MIDI_Device_USBTask(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
static inline void MIDI_Device_USBTask(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo)
{
(void)MIDIInterfaceInfo;
}
-
+
/** Processes incoming control requests from the host, that are directed to the given MIDI class interface. This should be
* linked to the library \ref EVENT_USB_Device_UnhandledControlRequest() event.
*
- * \param[in,out] MIDIInterfaceInfo Pointer to a structure containing a MIDI Class configuration and state
- */
+ * \param[in,out] MIDIInterfaceInfo Pointer to a structure containing a MIDI Class configuration and state.
+ */
static inline void MIDI_Device_ProcessControlRequest(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
static inline void MIDI_Device_ProcessControlRequest(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo)
{
#if defined(__cplusplus)
}
#endif
-
+
#endif
/** @} */
+
projects / pub / USBasp.git / blobdiff