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Finished basic documentation of all device mode class drivers.

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This commit is contained in:
Dean Camera 2009-06-08 11:31:41 +00:00
parent 1c12341cd7
commit ccf5bd19f2
7 changed files with 166 additions and 56 deletions
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61
LUFA/Drivers/USB/Class/Device/MIDI.h
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@ -145,35 +145,72 @@
uint8_t AssociatedJackID[1]; /**< IDs of each jack inside the endpoint */
} USB_MIDI_Jack_Endpoint_t;
/** Type define for a USB MIDI event packet, used to encapsulate sent and received MIDI messages from a USB MIDI interface. */
typedef struct
{
unsigned char Command : 4;
unsigned char CableNumber : 4;
unsigned char Command : 4; /**< MIDI command being sent or received in the event packet */
unsigned char CableNumber : 4; /**< Virtual cable number of the event being sent or received in the given MIDI interface */
uint8_t Data1;
uint8_t Data2;
uint8_t Data3;
uint8_t Data1; /**< First byte of data in the MIDI event */
uint8_t Data2; /**< Second byte of data in the MIDI event */
uint8_t Data3; /**< Third byte of data in the MIDI event */
} USB_MIDI_EventPacket_t;
/** Class state structure. An instance of this structure should be made for each MIDI interface
* within the user application, and passed to each of the MIDI class driver functions as the
* MIDIInterfaceInfo parameter. The contents of this structure should be set to their correct
* values when used, or ommitted to force the library to use default values.
*/
typedef struct
{
uint8_t StreamingInterfaceNumber;
uint8_t StreamingInterfaceNumber; /**< Index of the Audio Streaming interface within the device this structure controls */
uint8_t DataINEndpointNumber;
uint16_t DataINEndpointSize;
uint8_t DataINEndpointNumber; /**< Endpoint number of the incomming MIDI data, if available (zero if unused) */
uint16_t DataINEndpointSize; /**< Size in bytes of the incomming MIDI data endpoint, if available (zero if unused) */
uint8_t DataOUTEndpointNumber;
uint16_t DataOUTEndpointSize;
bool InterfaceEnabled;
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) */
} USB_ClassInfo_MIDI_t;
/* Function Prototypes: */
/** Configures the endpoints of a given MIDI interface, ready for use. This should be linked to the library
* \ref EVENT_USB_ConfigurationChanged() event so that the endpoints are configured when the configuration
* containing the given MIDI interface is selected.
*
* \param MIDIInterfaceInfo Pointer to a structure containing a MIDI Class configuration and state.
*
* \return Boolean true if the endpoints were sucessfully configured, false otherwise
*/
bool USB_MIDI_ConfigureEndpoints(USB_ClassInfo_MIDI_t* MIDIInterfaceInfo);
/** Processes incomming control requests from the host, that are directed to the given MIDI class interface. This should be
* linked to the library \ref EVENT_USB_UnhandledControlPacket() event.
*
* \param MIDIInterfaceInfo Pointer to a structure containing a MIDI Class configuration and state.
*/
void USB_MIDI_ProcessControlPacket(USB_ClassInfo_MIDI_t* MIDIInterfaceInfo);
/** 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 MIDIInterfaceInfo Pointer to a structure containing a MIDI Class configuration and state.
*/
void USB_MIDI_USBTask(USB_ClassInfo_MIDI_t* MIDIInterfaceInfo);
/** Sends a MIDI event packet to the host. If no host is connected, the event packet is discarded.
*
* \param MIDIInterfaceInfo Pointer to a structure containing a MIDI Class configuration and state.
* \param Event Pointer to a populated USB_MIDI_EventPacket_t structure containing the MIDI event to send
*/
void USB_MIDI_SendEventPacket(USB_ClassInfo_MIDI_t* MIDIInterfaceInfo, USB_MIDI_EventPacket_t* Event);
/** Receives a MIDI event packet from the host.
*
* \param MIDIInterfaceInfo Pointer to a structure containing a MIDI Class configuration and state.
* \param 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 USB_MIDI_ReceiveEventPacket(USB_ClassInfo_MIDI_t* MIDIInterfaceInfo, USB_MIDI_EventPacket_t* Event);
/* Disable C linkage for C++ Compilers: */