/*
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
* \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
*
* @{
*/
-
+
#ifndef _CDC_CLASS_DEVICE_H_
#define _CDC_CLASS_DEVICE_H_
#if !defined(__INCLUDE_FROM_CDC_DRIVER)
#error Do not include this file directly. Include LUFA/Drivers/Class/CDC.h instead.
#endif
-
+
/* Public Interface - May be used in end-application: */
/* Type Defines: */
/** \brief CDC Class Device Mode Configuration and State Structure.
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.
- */
+ */
} 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.
*/
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
/** 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
+ * \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
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);
-
+
/** 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 \ref DEVICE_STATE_Configured state or
*/
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
* \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 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
* \return Next received byte from the host, or a negative value if no data received.
*/
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 \ref DEVICE_STATE_Configured state or
* \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 \ref DEVICE_STATE_Configured state or
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)
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
/** @} */
+
projects / pub / USBasp.git / blobdiff