diff options
Diffstat (limited to 'LUFA/Drivers/USB/Class/Common/CDC.h')
| -rw-r--r-- | LUFA/Drivers/USB/Class/Common/CDC.h | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/LUFA/Drivers/USB/Class/Common/CDC.h b/LUFA/Drivers/USB/Class/Common/CDC.h new file mode 100644 index 000000000..12f8b8381 --- /dev/null +++ b/LUFA/Drivers/USB/Class/Common/CDC.h @@ -0,0 +1,184 @@ +/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2009.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.fourwalledcubicle.com
+*/
+
+/*
+ Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+ Permission to use, copy, modify, and distribute this software
+ and its documentation for any purpose and without fee is hereby
+ granted, 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
+ software without specific, written prior permission.
+
+ The author disclaim all warranties with regard to this
+ software, including all implied warranties of merchantability
+ and fitness. In no event shall the author be liable for any
+ special, indirect or consequential damages or any damages
+ whatsoever resulting from loss of use, data or profits, whether
+ in an action of contract, negligence or other tortious action,
+ arising out of or in connection with the use or performance of
+ this software.
+*/
+
+/** \ingroup Group_USBClassCDC
+ * @{
+ */
+
+#ifndef _CDC_CLASS_COMMON_H_
+#define _CDC_CLASS_COMMON_H_
+
+ /* Includes: */
+ #include "../../USB.h"
+
+ #include <string.h>
+
+ /* Enable C linkage for C++ Compilers: */
+ #if defined(__cplusplus)
+ extern "C" {
+ #endif
+
+ /* Macros: */
+ /** CDC Class specific request to get the current virtual serial port configuration settings. */
+ #define REQ_GetLineEncoding 0x21
+
+ /** CDC Class specific request to set the current virtual serial port configuration settings. */
+ #define REQ_SetLineEncoding 0x20
+
+ /** CDC Class specific request to set the current virtual serial port handshake line states. */
+ #define REQ_SetControlLineState 0x22
+
+ /** Notification type constant for a change in the virtual serial port handshake line states, for
+ * use with a USB_Notification_Header_t notification structure when sent to the host via the CDC
+ * notification endpoint.
+ */
+ #define NOTIF_SerialState 0x20
+
+ /** Mask for the DTR handshake line for use with the REQ_SetControlLineState class specific request
+ * from the host, to indicate that the DTR line state should be high.
+ */
+ #define CDC_CONTROL_LINE_OUT_DTR (1 << 0)
+
+ /** Mask for the RTS handshake line for use with the REQ_SetControlLineState class specific request
+ * from the host, to indicate that theRTS line state should be high.
+ */
+ #define CDC_CONTROL_LINE_OUT_RTS (1 << 1)
+
+ /** Mask for the DCD handshake line for use with the a NOTIF_SerialState class specific notification
+ * from the device to the host, to indicate that the DCD line state is currently high.
+ */
+ #define CDC_CONTROL_LINE_IN_DCD (1 << 0)
+
+ /** Mask for the DSR handshake line for use with the a NOTIF_SerialState class specific notification
+ * from the device to the host, to indicate that the DSR line state is currently high.
+ */
+ #define CDC_CONTROL_LINE_IN_DSR (1 << 1)
+
+ /** Mask for the BREAK handshake line for use with the a NOTIF_SerialState class specific notification
+ * from the device to the host, to indicate that the BREAK line state is currently high.
+ */
+ #define CDC_CONTROL_LINE_IN_BREAK (1 << 2)
+
+ /** Mask for the RING handshake line for use with the a NOTIF_SerialState class specific notification
+ * from the device to the host, to indicate that the RING line state is currently high.
+ */
+ #define CDC_CONTROL_LINE_IN_RING (1 << 3)
+
+ /** Mask for use with the a NOTIF_SerialState class specific notification from the device to the host,
+ * to indicate that a framing error has occurred on the virtual serial port.
+ */
+ #define CDC_CONTROL_LINE_IN_FRAMEERROR (1 << 4)
+
+ /** Mask for use with the a NOTIF_SerialState class specific notification from the device to the host,
+ * to indicate that a parity error has occurred on the virtual serial port.
+ */
+ #define CDC_CONTROL_LINE_IN_PARITYERROR (1 << 5)
+
+ /** Mask for use with the a NOTIF_SerialState class specific notification from the device to the host,
+ * to indicate that a data overrun error has occurred on the virtual serial port.
+ */
+ #define CDC_CONTROL_LINE_IN_OVERRUNERROR (1 << 6)
+
+ /** Macro to define a CDC class-specific functional descriptor. CDC functional descriptors have a
+ * uniform structure but variable sized data payloads, thus cannot be represented accurately by
+ * a single typedef struct. A macro is used instead so that functional descriptors can be created
+ * easily by specifying the size of the payload. This allows sizeof() to work correctly.
+ *
+ * \param DataSize Size in bytes of the CDC functional descriptor's data payload
+ */
+ #define CDC_FUNCTIONAL_DESCRIPTOR(DataSize) \
+ struct \
+ { \
+ USB_Descriptor_Header_t Header; \
+ uint8_t SubType; \
+ uint8_t Data[DataSize]; \
+ }
+
+ /* Enums: */
+ /** Enum for the possible line encoding formats of a virtual serial port. */
+ enum CDCDevice_CDC_LineCodingFormats_t
+ {
+ CDC_LINEENCODING_OneStopBit = 0, /**< Each frame contains one stop bit */
+ CDC_LINEENCODING_OneAndAHalfStopBits = 1, /**< Each frame contains one and a half stop bits */
+ CDC_LINEENCODING_TwoStopBits = 2, /**< Each frame contains two stop bits */
+ };
+
+ /** Enum for the possible line encoding parity settings of a virtual serial port. */
+ enum CDCDevice_LineCodingParity_t
+ {
+ CDC_PARITY_None = 0, /**< No parity bit mode on each frame */
+ CDC_PARITY_Odd = 1, /**< Odd parity bit mode on each frame */
+ CDC_PARITY_Even = 2, /**< Even parity bit mode on each frame */
+ CDC_PARITY_Mark = 3, /**< Mark parity bit mode on each frame */
+ CDC_PARITY_Space = 4, /**< Space parity bit mode on each frame */
+ };
+
+ /* Type Defines: */
+ /** Class state structure. An instance of this structure should be made for each CDC interface
+ * within the user application, and passed to each of the CDC class driver functions as the
+ * CDCInterfaceInfo 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 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 */
+
+ 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 */
+
+ 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 */
+
+ uint8_t ControlLineState; /**< Current control line states, as set by the 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
+ * CDCDevice_CDC_LineCodingFormats_t enum
+ */
+ uint8_t ParityType; /**< Parity setting of the virtual serial port, a value from the
+ * CDCDevice_LineCodingParity_t enum
+ */
+ uint8_t DataBits; /**< Bits of data per character of the virtual serial port */
+ } LineEncoding;
+ } USB_ClassInfo_CDC_t;
+
+ /* Disable C linkage for C++ Compilers: */
+ #if defined(__cplusplus)
+ }
+ #endif
+
+#endif
+
+/** @} */
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