Christina Quast | b123d74 | 2014-12-23 13:03:36 +0100 | [diff] [blame^] | 1 | /* ---------------------------------------------------------------------------- |
| 2 | * ATMEL Microcontroller Software Support |
| 3 | * ---------------------------------------------------------------------------- |
| 4 | * Copyright (c) 2010, Atmel Corporation |
| 5 | * |
| 6 | * All rights reserved. |
| 7 | * |
| 8 | * Redistribution and use in source and binary forms, with or without |
| 9 | * modification, are permitted provided that the following conditions are met: |
| 10 | * |
| 11 | * - Redistributions of source code must retain the above copyright notice, |
| 12 | * this list of conditions and the disclaimer below. |
| 13 | * |
| 14 | * Atmel's name may not be used to endorse or promote products derived from |
| 15 | * this software without specific prior written permission. |
| 16 | * |
| 17 | * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR |
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 19 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE |
| 20 | * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, |
| 23 | * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| 24 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| 25 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
| 26 | * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | * ---------------------------------------------------------------------------- |
| 28 | */ |
| 29 | |
| 30 | /** \file |
| 31 | * |
| 32 | * Definitions and classes for USB CDC class requests |
| 33 | * (mostly for ACM). |
| 34 | * |
| 35 | * \section CDCLineCoding |
| 36 | * |
| 37 | * -# Initialize a CDCLineCoding instance using CDCLineCoding_Initialize. |
| 38 | * -# Send a CDCLineCoding object to the host in response to a GetLineCoding |
| 39 | * request. |
| 40 | * -# Receive a CDCLineCoding object from the host after a SetLineCoding |
| 41 | * request. |
| 42 | * |
| 43 | */ |
| 44 | |
| 45 | #ifndef _CDCREQUESTS_H_ |
| 46 | #define _CDCREQUESTS_H_ |
| 47 | /** \addtogroup usb_cdc |
| 48 | *@{ |
| 49 | */ |
| 50 | |
| 51 | /*---------------------------------------------------------------------------- |
| 52 | * Includes |
| 53 | *----------------------------------------------------------------------------*/ |
| 54 | |
| 55 | #include <stdint.h> |
| 56 | |
| 57 | #include <USBRequests.h> |
| 58 | |
| 59 | /*---------------------------------------------------------------------------- |
| 60 | * Definitions |
| 61 | *----------------------------------------------------------------------------*/ |
| 62 | |
| 63 | /** \addtogroup usb_cdc_request USB CDC Request Codes |
| 64 | * @{ |
| 65 | * This section lists USB CDC Request Codes. |
| 66 | * - \ref CDCGenericRequest_SETLINECODING |
| 67 | * - \ref CDCGenericRequest_GETLINECODING |
| 68 | * - \ref CDCGenericRequest_SETCONTROLLINESTATE |
| 69 | */ |
| 70 | |
| 71 | /** SetLineCoding request code. */ |
| 72 | #define CDCGenericRequest_SETLINECODING 0x20 |
| 73 | /** GetLineCoding request code. */ |
| 74 | #define CDCGenericRequest_GETLINECODING 0x21 |
| 75 | /** SetControlLineState request code. */ |
| 76 | #define CDCGenericRequest_SETCONTROLLINESTATE 0x22 |
| 77 | /** @}*/ |
| 78 | |
| 79 | /** \addtogroup usb_cdc_ctrl_line_state USB CDC ControlLineState bitmap |
| 80 | * @{ |
| 81 | * This section lists CDC ControlLineState bitmap. |
| 82 | * - \ref CDCControlLineState_DTR, CDCControlLineState_DTE_PRESENT |
| 83 | * - \ref CDCControlLineState_RTS, CDCControlLineState_CARRIER_ON |
| 84 | */ |
| 85 | /** Indicates to DCE if DTE is present or not. */ |
| 86 | #define CDCControlLineState_DTE_PRESENT (1 << 0) |
| 87 | /** RS232 signal DTR: Data Terminal Ready. */ |
| 88 | #define CDCControlLineState_DTR (1 << 0) |
| 89 | /** Carrier control for half duplex modems. */ |
| 90 | #define CDCControlLineState_CARRIER_ON (1 << 1) |
| 91 | /** RS232 signal RTS: Request to send. */ |
| 92 | #define CDCControlLineState_RTS (1 << 1) |
| 93 | /** @}*/ |
| 94 | |
| 95 | /** \addtogroup usb_cdc_stop USB CDC LineCoding StopBits |
| 96 | * @{ |
| 97 | * This section lists Stop Bits for CDC Line Coding. |
| 98 | * - \ref CDCLineCoding_ONESTOPBIT |
| 99 | * - \ref CDCLineCoding_ONE5STOPBIT |
| 100 | * - \ref CDCLineCoding_TWOSTOPBITS |
| 101 | */ |
| 102 | /** The transmission protocol uses one stop bit. */ |
| 103 | #define CDCLineCoding_ONESTOPBIT 0 |
| 104 | /** The transmission protocol uses 1.5 stop bit. */ |
| 105 | #define CDCLineCoding_ONE5STOPBIT 1 |
| 106 | /** The transmissin protocol uses two stop bits. */ |
| 107 | #define CDCLineCoding_TWOSTOPBITS 2 |
| 108 | /** @}*/ |
| 109 | |
| 110 | /** \addtogroup usb_cdc_parity USB CDC LineCoding ParityCheckings |
| 111 | * @{ |
| 112 | * This section lists Parity checkings for CDC Line Coding. |
| 113 | * - \ref CDCLineCoding_NOPARITY |
| 114 | * - \ref CDCLineCoding_ODDPARITY |
| 115 | * - \ref CDCLineCoding_EVENPARITY |
| 116 | * - \ref CDCLineCoding_MARKPARITY |
| 117 | * - \ref CDCLineCoding_SPACEPARITY |
| 118 | */ |
| 119 | /** No parity checking. */ |
| 120 | #define CDCLineCoding_NOPARITY 0 |
| 121 | /** Odd parity checking. */ |
| 122 | #define CDCLineCoding_ODDPARITY 1 |
| 123 | /** Even parity checking. */ |
| 124 | #define CDCLineCoding_EVENPARITY 2 |
| 125 | /** Mark parity checking. */ |
| 126 | #define CDCLineCoding_MARKPARITY 3 |
| 127 | /** Space parity checking. */ |
| 128 | #define CDCLineCoding_SPACEPARITY 4 |
| 129 | /** @}*/ |
| 130 | |
| 131 | /*---------------------------------------------------------------------------- |
| 132 | * Types |
| 133 | *----------------------------------------------------------------------------*/ |
| 134 | |
| 135 | #ifdef __ICCARM__ /* IAR */ |
| 136 | #pragma pack(1) /* IAR */ |
| 137 | #define __attribute__(...) /* IAR */ |
| 138 | #endif /* IAR */ |
| 139 | |
| 140 | /** |
| 141 | * \typedef CDCLineCoding |
| 142 | * \brief Format of the data returned when a GetLineCoding request is received. |
| 143 | */ |
| 144 | typedef struct _CDCLineCoding { |
| 145 | |
| 146 | /** Data terminal rate in bits per second. */ |
| 147 | uint32_t dwDTERate; |
| 148 | /** Number of stop bits. |
| 149 | \sa usb_cdc_stop CDC LineCoding StopBits. */ |
| 150 | uint8_t bCharFormat; |
| 151 | /** Type of parity checking used. |
| 152 | \sa usb_cdc_parity CDC LineCoding ParityCheckings. */ |
| 153 | uint8_t bParityType; |
| 154 | /** Number of data bits (5, 6, 7, 8 or 16). */ |
| 155 | uint8_t bDataBits; |
| 156 | |
| 157 | } __attribute__ ((packed)) CDCLineCoding; /* GCC */ |
| 158 | |
| 159 | #ifdef __ICCARM__ /* IAR */ |
| 160 | #pragma pack() /* IAR */ |
| 161 | #endif /* IAR */ |
| 162 | |
| 163 | /*---------------------------------------------------------------------------- |
| 164 | * Functions |
| 165 | *----------------------------------------------------------------------------*/ |
| 166 | |
| 167 | extern uint8_t CDCSetControlLineStateRequest_IsDtePresent( |
| 168 | const USBGenericRequest *request); |
| 169 | |
| 170 | extern uint8_t CDCSetControlLineStateRequest_ActivateCarrier( |
| 171 | const USBGenericRequest *request); |
| 172 | |
| 173 | extern void CDCLineCoding_Initialize(CDCLineCoding *lineCoding, |
| 174 | uint32_t bitrate, |
| 175 | uint8_t stopbits, |
| 176 | uint8_t parity, |
| 177 | uint8_t databits); |
| 178 | |
| 179 | |
| 180 | /**@}*/ |
| 181 | #endif /* #define _CDCREQUESTS_H_ */ |
| 182 | |