From afe6ae14023c7040befe73e49d00077d3425c564 Mon Sep 17 00:00:00 2001 From: Dean Camera Date: Sun, 14 Jun 2009 15:55:13 +0000 Subject: Add host mode USB Class driver stubs, add beginnings of a CDC host class driver. Split out common defines/types from class drivers into a seperate common class driver directory. Make central USB Class driver dispatch headers, used for both device and host modes. --- LUFA/Drivers/USB/Class/Common/CDC.h | 184 ++++++++++++++++++++++++++++++++++++ 1 file changed, 184 insertions(+) create mode 100644 LUFA/Drivers/USB/Class/Common/CDC.h (limited to 'LUFA/Drivers/USB/Class/Common/CDC.h') 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 + + /* 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 + +/** @} */ -- cgit v1.2.3