X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/b37d77eab32d171ad7b28157a924a4026e2aebd1..77a9df36a77d2523dd2bc24fa17f9f04c6c175c5:/LUFA/Drivers/USB/Class/Device/CDC.h?ds=sidebyside diff --git a/LUFA/Drivers/USB/Class/Device/CDC.h b/LUFA/Drivers/USB/Class/Device/CDC.h index 9d6db767f..6e188ad63 100644 --- a/LUFA/Drivers/USB/Class/Device/CDC.h +++ b/LUFA/Drivers/USB/Class/Device/CDC.h @@ -1,13 +1,13 @@ /* LUFA Library - Copyright (C) Dean Camera, 2010. + Copyright (C) Dean Camera, 2011. dean [at] fourwalledcubicle [dot] com - www.fourwalledcubicle.com + www.lufa-lib.org */ /* - Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) + 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 @@ -38,13 +38,13 @@ */ /** \ingroup Group_USBClassCDC - * @defgroup Group_USBClassCDCDevice CDC Class Device Mode Driver + * \defgroup Group_USBClassCDCDevice CDC Class Device 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/Device/CDC.c (Makefile source module name: LUFA_SRC_USBCLASS) * - * \section Module Description + * \section Sec_ModDescription Module Description * Device Mode USB Class driver framework interface, for the CDC USB Class driver. * * \note There are several major drawbacks to the CDC-ACM standard USB class, however @@ -75,7 +75,6 @@ #include "../Common/CDC.h" #include - #include /* Enable C linkage for C++ Compilers: */ #if defined(__cplusplus) @@ -87,10 +86,6 @@ #error Do not include this file directly. Include LUFA/Drivers/USB.h instead. #endif - #if defined(__INCLUDE_FROM_CDC_DEVICE_C) && defined(NO_STREAM_CALLBACKS) - #error The NO_STREAM_CALLBACKS compile time option cannot be used in projects using the library Class drivers. - #endif - /* Public Interface - May be used in end-application: */ /* Type Defines: */ /** \brief CDC Class Device Mode Configuration and State Structure. @@ -123,10 +118,10 @@ { struct { - uint8_t HostToDevice; /**< Control line states from the host to device, as a set of CDC_CONTROL_LINE_OUT_* + uint8_t HostToDevice; /**< Control line states from the host to device, as a set of \c CDC_CONTROL_LINE_OUT_* * masks. This value is updated each time \ref CDC_Device_USBTask() is called. */ - uint8_t DeviceToHost; /**< Control line states from the device to host, as a set of CDC_CONTROL_LINE_IN_* + uint8_t DeviceToHost; /**< Control line states from the device to host, as a set of \c CDC_CONTROL_LINE_IN_* * masks - to notify the host of changes to these values, call the * \ref CDC_Device_SendControlLineStateChange() function. */ @@ -146,18 +141,14 @@ * \ref EVENT_USB_Device_ConfigurationChanged() event so that the endpoints are configured when the configuration containing * the given CDC interface is selected. * - * \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] 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 \c true if the endpoints were successfully configured, \c 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. + * linked to the library \ref EVENT_USB_Device_ControlRequest() event. * * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state. */ @@ -182,7 +173,7 @@ /** CDC class driver event for a control line state change on a CDC interface. This event fires each time the host requests a * control line state change (containing the virtual serial control line states, such as DTR) and may be hooked in the * user program by declaring a handler function with the same name and parameters listed here. The new control line states - * are available in the ControlLineStates.HostToDevice value inside the CDC interface structure passed as a parameter, set as + * are available in the State.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. @@ -198,23 +189,39 @@ void EVENT_CDC_Device_BreakSent(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo, const uint8_t Duration) ATTR_NON_NULL_PTR_ARG(1); - /** Sends a given string to the attached USB host, if connected. If a host is not connected when the function is called, the - * string is discarded. Bytes will be queued for transmission to the host until either the endpoint bank becomes full, or the - * \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. + /** Sends a given data buffer to the attached USB host, if connected. If a host is not connected when the function is + * called, the string is discarded. Bytes will be queued for transmission to the host until either the endpoint bank + * becomes full, or the \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. * * \pre This function must only be called when the Device state machine is in the \ref 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] Buffer Pointer to a buffer containing the data to send to the device. + * \param[in] Length Length of the data to send to the host. + * + * \return A value from the \ref Endpoint_Stream_RW_ErrorCodes_t enum. + */ + uint8_t CDC_Device_SendData(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo, + const char* const Buffer, + const uint16_t Length) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2); + + /** Sends a given null terminated string to the attached USB host, if connected. If a host is not connected when + * the function is called, the string is discarded. Bytes will be queued for transmission to the host until either + * the endpoint bank becomes full, or the \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. + * + * \pre This function must only be called when the Device state machine is in the \ref 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] String Pointer to the null terminated string to send to the host. * * \return A value from the \ref Endpoint_Stream_RW_ErrorCodes_t enum. */ uint8_t CDC_Device_SendString(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo, - const char* const Data, - const uint16_t Length) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2); + const char* const String) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2); /** Sends a given byte to the attached USB host, if connected. If a host is not connected when the function is called, the * byte is discarded. Bytes will be queued for transmission to the host until either the endpoint bank becomes full, or the @@ -284,16 +291,19 @@ void CDC_Device_SendControlLineStateChange(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); /** 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 + * functions in the standard library that accept a \c FILE stream as a destination (e.g. \c fprintf). The created * stream is bidirectional and can be used for both input and output functions. * * Reading data from this stream is non-blocking, i.e. in most instances, complete strings cannot be read in by a single * fetch, as the endpoint will not be ready at some point in the transmission, aborting the transfer. However, this may - * be used when the read data is processed byte-per-bye (via getc()) or when the user application will implement its own + * be used when the read data is processed byte-per-bye (via \c getc()) or when the user application will implement its own * line buffering. * * \note The created stream can be given as stdout if desired to direct the standard output from all functions * to the given CDC interface. + * \n\n + * + * \note This function is not available on all microcontroller architectures. * * \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. @@ -301,9 +311,11 @@ void CDC_Device_CreateStream(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo, FILE* const 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 + /** Identical to \ref 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. * + * \note This function is not available on all microcontroller architectures. + * * \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. */ @@ -314,12 +326,15 @@ #if !defined(__DOXYGEN__) /* Function Prototypes: */ #if defined(__INCLUDE_FROM_CDC_DEVICE_C) + #if defined(FDEV_SETUP_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); + #endif - void CDC_Device_Event_Stub(void); + void CDC_Device_Event_Stub(void) ATTR_CONST; + void EVENT_CDC_Device_LineEncodingChanged(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo) ATTR_WEAK ATTR_NON_NULL_PTR_ARG(1) ATTR_ALIAS(CDC_Device_Event_Stub); void EVENT_CDC_Device_ControLineStateChanged(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)