X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/deed746d3716d59153e04860c646bfb7b82ca820..77a9df36a77d2523dd2bc24fa17f9f04c6c175c5:/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 37d940092..6e188ad63 100644
--- a/LUFA/Drivers/USB/Class/Device/CDC.h
+++ b/LUFA/Drivers/USB/Class/Device/CDC.h
@@ -1,21 +1,21 @@
/*
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
+ 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
@@ -33,24 +33,24 @@
*
* Device mode driver for the library USB CDC Class driver.
*
- * \note This file should not be included directly. It is automatically included as needed by the class driver
- * dispatch header located in LUFA/Drivers/USB/Class/CDC.h.
+ * \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_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
+ * - 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
* it is very standardized and thus usually available as a built-in driver on
* most platforms, and so is a better choice than a proprietary serial class.
- *
+ *
* 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
@@ -66,7 +66,7 @@
*
* @{
*/
-
+
#ifndef _CDC_CLASS_DEVICE_H_
#define _CDC_CLASS_DEVICE_H_
@@ -75,7 +75,6 @@
#include "../Common/CDC.h"
#include
- #include
/* Enable C linkage for C++ Compilers: */
#if defined(__cplusplus)
@@ -84,9 +83,9 @@
/* Preprocessor Checks: */
#if !defined(__INCLUDE_FROM_CDC_DRIVER)
- #error Do not include this file directly. Include LUFA/Drivers/Class/CDC.h instead.
+ #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 CDC Class Device Mode Configuration and State Structure.
@@ -119,46 +118,37 @@
{
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.
*/
} ControlLineStates; /**< Current states of the virtual serial port's control lines between the device and host. */
- struct
- {
- 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
- * \ref CDC_LineEncodingFormats_t enum.
- */
- uint8_t ParityType; /**< Parity setting of the virtual serial port, a value from the
- * \ref CDC_LineEncodingParity_t enum.
- */
- 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.
- */
+ CDC_LineEncoding_t 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.
+ */
} 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_CDC_Device_t;
-
- /* Function Prototypes: */
+
+ /* Function Prototypes: */
/** Configures the endpoints of a given CDC 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 CDC interface is selected.
*
* \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.
*/
@@ -179,11 +169,11 @@
* \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);
-
+
/** 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.
@@ -196,31 +186,49 @@
* \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);
+ 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] 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 DEVICE_STATE_Configured state or
+ * \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,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, char* const Data, const uint16_t Length)
- ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
-
+ uint8_t CDC_Device_SendString(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
+ 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
- * \ref CDC_Device_Flush() function is called to flush the pending data to the host. This allows for multiple bytes to be
+ * \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 DEVICE_STATE_Configured state or
+ * \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.
@@ -228,11 +236,15 @@
*
* \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.
+ 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. This indicates the number
+ * of bytes in the OUT endpoint bank only, and thus the number of calls to \ref CDC_Device_ReceiveByte() which are guaranteed to
+ * succeed immediately. If multiple bytes are to be received, they should be buffered by the user application, as the endpoint
+ * bank will not be released back to the USB controller until all bytes are read.
*
- * \pre This function must only be called when the Device state machine is in the DEVICE_STATE_Configured state or
+ * \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.
@@ -240,23 +252,24 @@
* \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);
-
+
/** Reads a byte of data from the host. If no data is waiting to be read of if a USB host is not connected, the function
- * returns 0. The \ref CDC_Device_BytesReceived() function should be queried before data is received to ensure that no data
- * underflow occurs.
+ * returns a negative value. The \ref CDC_Device_BytesReceived() function may be queried in advance to determine how many
+ * bytes are currently buffered in the CDC interface's data receive endpoint bank, and thus how many repeated calls to this
+ * function which are guaranteed to succeed.
*
- * \pre This function must only be called when the Device state machine is in the DEVICE_STATE_Configured state or
+ * \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.
*
- * \return Next received byte from the host, or 0 if no data received.
+ * \return Next received byte from the host, or a negative value if no data received.
*/
- uint8_t CDC_Device_ReceiveByte(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
-
+ int16_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.
*
- * \pre This function must only be called when the Device state machine is in the DEVICE_STATE_Configured state or
+ * \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.
@@ -264,13 +277,13 @@
* \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);
-
+
/** Sends a Serial Control Line State Change notification to the host. This should be called when the virtual serial
* control lines (DCD, DSR, etc.) have changed states, or to give BREAK notifications to the host. Line states persist
- * until they are cleared via a second notification. This should be called each time the CDC class driver's
+ * 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.
*
- * \pre This function must only be called when the Device state machine is in the DEVICE_STATE_Configured state or
+ * \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.
@@ -278,56 +291,67 @@
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.
*/
- void CDC_Device_CreateStream(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo, FILE* Stream)
- ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
+ 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.
*/
- void CDC_Device_CreateBlockingStream(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo, FILE* Stream)
- ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
+ void CDC_Device_CreateBlockingStream(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
+ FILE* const 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) ATTR_NON_NULL_PTR_ARG(2);
+ #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) ATTR_CONST;
- void CDC_Device_Event_Stub(void);
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);
+ 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)
- ATTR_WEAK ATTR_NON_NULL_PTR_ARG(1) ATTR_ALIAS(CDC_Device_Event_Stub);
- void EVENT_CDC_Device_BreakSent(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo, uint8_t Duration)
- ATTR_WEAK ATTR_NON_NULL_PTR_ARG(1) ATTR_ALIAS(CDC_Device_Event_Stub);
+ ATTR_WEAK ATTR_NON_NULL_PTR_ARG(1) ATTR_ALIAS(CDC_Device_Event_Stub);
+ void EVENT_CDC_Device_BreakSent(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
+ const uint8_t Duration) ATTR_WEAK ATTR_NON_NULL_PTR_ARG(1)
+ ATTR_ALIAS(CDC_Device_Event_Stub);
#endif
#endif
-
+
/* Disable C linkage for C++ Compilers: */
#if defined(__cplusplus)
}
#endif
-
+
#endif
/** @} */
+