X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/071e02c6b6b4837fa9cf0b6d4c749994e02638d7..8b053d6ba5dddc5f00fb52873185a2350bef5ce8:/LUFA/Drivers/USB/Class/Device/CDC.h diff --git a/LUFA/Drivers/USB/Class/Device/CDC.h b/LUFA/Drivers/USB/Class/Device/CDC.h index f0351f5d9..37d940092 100644 --- a/LUFA/Drivers/USB/Class/Device/CDC.h +++ b/LUFA/Drivers/USB/Class/Device/CDC.h @@ -54,7 +54,7 @@ * One major issue with CDC-ACM is that it requires two Interface descriptors, * which will upset most hosts when part of a multi-function "Composite" USB * device, as each interface will be loaded into a separate driver instance. To - * conbat this, you should use the "Interface Association Descriptor" addendum to + * combat this, you should use the "Interface Association Descriptor" addendum to * the USB standard which is available on most OSes when creating Composite devices. * * Another major oversight is that there is no mechanism for the host to notify the @@ -99,19 +99,19 @@ { const struct { - uint8_t ControlInterfaceNumber; /**< Interface number of the CDC control interface within the device */ + uint8_t ControlInterfaceNumber; /**< Interface number of the CDC control interface within the device. */ - uint8_t DataINEndpointNumber; /**< Endpoint number of the CDC interface's IN data endpoint */ - uint16_t DataINEndpointSize; /**< Size in bytes of the CDC interface's IN data endpoint */ - bool DataINEndpointDoubleBank; /** Indicates if the CDC interface's IN data endpoint should use double banking */ + uint8_t DataINEndpointNumber; /**< Endpoint number of the CDC interface's IN data endpoint. */ + uint16_t DataINEndpointSize; /**< Size in bytes of the CDC interface's IN data endpoint. */ + bool DataINEndpointDoubleBank; /**< Indicates if the CDC interface's IN data endpoint should use double banking. */ - uint8_t DataOUTEndpointNumber; /**< Endpoint number of the CDC interface's OUT data endpoint */ - uint16_t DataOUTEndpointSize; /**< Size in bytes of the CDC interface's OUT data endpoint */ - bool DataOUTEndpointDoubleBank; /** Indicates if the CDC interface's OUT data endpoint should use double banking */ + uint8_t DataOUTEndpointNumber; /**< Endpoint number of the CDC interface's OUT data endpoint. */ + uint16_t DataOUTEndpointSize; /**< Size in bytes of the CDC interface's OUT data endpoint. */ + bool DataOUTEndpointDoubleBank; /**< Indicates if the CDC interface's OUT data endpoint should use double banking. */ - uint8_t NotificationEndpointNumber; /**< Endpoint number of the CDC interface's IN notification endpoint, if used */ - uint16_t NotificationEndpointSize; /**< Size in bytes of the CDC interface's IN notification endpoint, if used */ - bool NotificationEndpointDoubleBank; /** Indicates if the CDC interface's notification endpoint should use double banking */ + uint8_t NotificationEndpointNumber; /**< Endpoint number of the CDC interface's IN notification endpoint, if used. */ + uint16_t NotificationEndpointSize; /**< Size in bytes of the CDC interface's IN notification endpoint, if used. */ + bool NotificationEndpointDoubleBank; /**< Indicates if the CDC interface's notification endpoint 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. */ @@ -130,14 +130,14 @@ struct { - uint32_t BaudRateBPS; /**< Baud rate of the virtual serial port, in bits per second */ + uint32_t BaudRateBPS; /**< Baud rate of the virtual serial port, in bits per second. */ uint8_t CharFormat; /**< Character format of the virtual serial port, a value from the - * CDCDevice_CDC_LineCodingFormats_t enum + * \ref CDC_LineEncodingFormats_t enum. */ uint8_t ParityType; /**< Parity setting of the virtual serial port, a value from the - * CDCDevice_LineCodingParity_t enum + * \ref CDC_LineEncodingParity_t enum. */ - uint8_t DataBits; /**< Bits of data per character of the virtual serial port */ + uint8_t DataBits; /**< Bits of data per character of the virtual serial port. */ } LineEncoding; /** Line encoding used in the virtual serial port, for the device's information. This is generally * only used if the virtual serial port data is to be reconstructed on a physical UART. */ @@ -151,23 +151,23 @@ * \ref EVENT_USB_Device_ConfigurationChanged() event so that the endpoints are configured when the configuration containing * the given CDC interface is selected. * - * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state + * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC 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 CDC_Device_ConfigureEndpoints(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); /** Processes incoming control requests from the host, that are directed to the given CDC class interface. This should be * linked to the library \ref EVENT_USB_Device_UnhandledControlRequest() event. * - * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state + * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state. */ void CDC_Device_ProcessControlRequest(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); /** General management task for a given CDC 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] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state + * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state. */ void CDC_Device_USBTask(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); @@ -176,7 +176,7 @@ * user program by declaring a handler function with the same name and parameters listed here. The new line encoding * settings are available in the LineEncoding structure inside the CDC interface structure passed as a parameter. * - * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state + * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state. */ void EVENT_CDC_Device_LineEncodingChanged(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); @@ -186,15 +186,15 @@ * are available in the ControlLineStates.HostToDevice value inside the CDC interface structure passed as a parameter, set as * a mask of CDC_CONTROL_LINE_OUT_* masks. * - * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state + * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state. */ void EVENT_CDC_Device_ControLineStateChanged(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); - /** CDC class driver event for a send break request sent to the device from the host. This is generally used to seperate + /** CDC class driver event for a send break request sent to the device from the host. This is generally used to separate * data or to indicate a special condition to the receiving device. * - * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state - * \param[in] Duration Duration of the break that has been sent by the host, in milliseconds + * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state. + * \param[in] Duration Duration of the break that has been sent by the host, in milliseconds. */ void EVENT_CDC_Device_BreakSent(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo, uint8_t Duration) ATTR_NON_NULL_PTR_ARG(1); @@ -203,14 +203,14 @@ * \ref CDC_Device_Flush() function is called to flush the pending data to the host. This allows for multiple bytes 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 Device state machine is in the DEVICE_STATE_Configured state or + * the call will fail. * - * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state - * \param[in] Data Pointer to the string to send to the host - * \param[in] Length Size in bytes of the string to send to the host + * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state. + * \param[in] Data Pointer to the string to send to the host. + * \param[in] Length Size in bytes of the string to send to the host. * - * \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 CDC_Device_SendString(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo, char* const Data, const uint16_t Length) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2); @@ -220,24 +220,24 @@ * \ref CDC_Device_Flush() function is called to flush the pending data to the host. This allows for multiple bytes 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 Device state machine is in the DEVICE_STATE_Configured state or + * the call will fail. * - * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state - * \param[in] Data Byte of data to send to the host + * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state. + * \param[in] Data Byte of data to send to the host. * - * \return A value from the \ref Endpoint_WaitUntilReady_ErrorCodes_t enum + * \return A value from the \ref Endpoint_WaitUntilReady_ErrorCodes_t enum. */ uint8_t CDC_Device_SendByte(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo, const uint8_t Data) ATTR_NON_NULL_PTR_ARG(1); /** Determines the number of bytes received by the CDC interface from the host, waiting to be read. * - * \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 Device state machine is in the DEVICE_STATE_Configured state or + * the call will fail. * - * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state + * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state. * - * \return Total number of buffered bytes received from the host + * \return Total number of buffered bytes received from the host. */ uint16_t CDC_Device_BytesReceived(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); @@ -245,23 +245,23 @@ * returns 0. The \ref CDC_Device_BytesReceived() function should be queried before data is received to ensure that no data * underflow occurs. * - * \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 Device state machine is in the DEVICE_STATE_Configured state or + * the call will fail. * - * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state + * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state. * - * \return Next received byte from the host, or 0 if no data received + * \return Next received byte from the host, or 0 if no data received. */ uint8_t CDC_Device_ReceiveByte(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); /** Flushes any data waiting to be sent, ensuring that the send buffer is cleared. * - * \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 Device state machine is in the DEVICE_STATE_Configured state or + * the call will fail. * - * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state + * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC 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 CDC_Device_Flush(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); @@ -270,14 +270,14 @@ * until they are cleared via a second notification. This should be called each time the CDC class driver's * ControlLineStates.DeviceToHost value is updated to push the new states to the USB host. * - * \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 Device state machine is in the DEVICE_STATE_Configured state or + * the call will fail. * - * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state + * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state. */ void CDC_Device_SendControlLineStateChange(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); - /** Creates a standard characer stream for the given CDC Device instance so that it can be used with all the regular + /** Creates a standard character stream for the given CDC Device instance so that it can be used with all the regular * functions in the avr-libc library that accept a FILE stream as a destination (e.g. fprintf). The created * stream is bidirectional and can be used for both input and output functions. * @@ -289,26 +289,28 @@ * \note The created stream can be given as stdout if desired to direct the standard output from all functions * to the given CDC interface. * - * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state - * \param[in,out] Stream Pointer to a FILE structure where the created stream should be placed + * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state. + * \param[in,out] Stream Pointer to a FILE structure where the created stream should be placed. */ - void CDC_Device_CreateStream(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo, FILE* Stream); + void CDC_Device_CreateStream(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo, FILE* Stream) + ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2); /** Identical to CDC_Device_CreateStream(), except that reads are blocking until the calling stream function terminates * the transfer. While blocking, the USB and CDC service tasks are called repeatedly to maintain USB communications. * - * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state - * \param[in,out] Stream Pointer to a FILE structure where the created stream should be placed + * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state. + * \param[in,out] Stream Pointer to a FILE structure where the created stream should be placed. */ - void CDC_Device_CreateBlockingStream(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo, FILE* Stream); + void CDC_Device_CreateBlockingStream(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo, FILE* Stream) + 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_CDC_CLASS_DEVICE_C) - static int CDC_Device_putchar(char c, FILE* Stream); - static int CDC_Device_getchar(FILE* Stream); - static int CDC_Device_getchar_Blocking(FILE* Stream); + static int CDC_Device_putchar(char c, FILE* Stream) ATTR_NON_NULL_PTR_ARG(2); + static int CDC_Device_getchar(FILE* Stream) ATTR_NON_NULL_PTR_ARG(1); + static int CDC_Device_getchar_Blocking(FILE* Stream) ATTR_NON_NULL_PTR_ARG(1); void CDC_Device_Event_Stub(void); void EVENT_CDC_Device_LineEncodingChanged(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)