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| 2 | mjames | 1 | /** |
| 2 | ****************************************************************************** |
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| 3 | * @file usbd_cdc_if_template.c |
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| 4 | * @author MCD Application Team |
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| 5 | * @version V2.4.2 |
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| 6 | * @date 11-December-2015 |
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| 7 | * @brief Generic media access Layer. |
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| 8 | ****************************************************************************** |
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| 9 | * @attention |
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| 10 | * |
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| 11 | * <h2><center>© COPYRIGHT 2015 STMicroelectronics</center></h2> |
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| 12 | * |
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| 13 | * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License"); |
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| 14 | * You may not use this file except in compliance with the License. |
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| 15 | * You may obtain a copy of the License at: |
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| 16 | * |
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| 17 | * http://www.st.com/software_license_agreement_liberty_v2 |
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| 18 | * |
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| 19 | * Unless required by applicable law or agreed to in writing, software |
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| 20 | * distributed under the License is distributed on an "AS IS" BASIS, |
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| 21 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 22 | * See the License for the specific language governing permissions and |
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| 23 | * limitations under the License. |
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| 24 | * |
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| 25 | ****************************************************************************** |
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| 26 | */ |
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| 27 | |||
| 28 | /* Includes ------------------------------------------------------------------*/ |
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| 29 | #include "usbd_cdc_if_template.h" |
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| 30 | |||
| 31 | /** @addtogroup STM32_USB_DEVICE_LIBRARY |
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| 32 | * @{ |
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| 33 | */ |
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| 34 | |||
| 35 | |||
| 36 | /** @defgroup USBD_CDC |
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| 37 | * @brief usbd core module |
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| 38 | * @{ |
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| 39 | */ |
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| 40 | |||
| 41 | /** @defgroup USBD_CDC_Private_TypesDefinitions |
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| 42 | * @{ |
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| 43 | */ |
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| 44 | /** |
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| 45 | * @} |
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| 46 | */ |
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| 47 | |||
| 48 | |||
| 49 | /** @defgroup USBD_CDC_Private_Defines |
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| 50 | * @{ |
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| 51 | */ |
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| 52 | /** |
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| 53 | * @} |
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| 54 | */ |
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| 55 | |||
| 56 | |||
| 57 | /** @defgroup USBD_CDC_Private_Macros |
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| 58 | * @{ |
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| 59 | */ |
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| 60 | |||
| 61 | /** |
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| 62 | * @} |
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| 63 | */ |
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| 64 | |||
| 65 | |||
| 66 | /** @defgroup USBD_CDC_Private_FunctionPrototypes |
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| 67 | * @{ |
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| 68 | */ |
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| 69 | |||
| 70 | static int8_t TEMPLATE_Init (void); |
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| 71 | static int8_t TEMPLATE_DeInit (void); |
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| 72 | static int8_t TEMPLATE_Control (uint8_t cmd, uint8_t* pbuf, uint16_t length); |
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| 73 | static int8_t TEMPLATE_Receive (uint8_t* pbuf, uint32_t *Len); |
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| 74 | |||
| 75 | USBD_CDC_ItfTypeDef USBD_CDC_Template_fops = |
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| 76 | { |
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| 77 | TEMPLATE_Init, |
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| 78 | TEMPLATE_DeInit, |
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| 79 | TEMPLATE_Control, |
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| 80 | TEMPLATE_Receive |
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| 81 | }; |
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| 82 | |||
| 83 | USBD_CDC_LineCodingTypeDef linecoding = |
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| 84 | { |
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| 85 | 115200, /* baud rate*/ |
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| 86 | 0x00, /* stop bits-1*/ |
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| 87 | 0x00, /* parity - none*/ |
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| 88 | 0x08 /* nb. of bits 8*/ |
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| 89 | }; |
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| 90 | |||
| 91 | /* Private functions ---------------------------------------------------------*/ |
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| 92 | |||
| 93 | /** |
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| 94 | * @brief TEMPLATE_Init |
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| 95 | * Initializes the CDC media low layer |
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| 96 | * @param None |
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| 97 | * @retval Result of the operation: USBD_OK if all operations are OK else USBD_FAIL |
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| 98 | */ |
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| 99 | static int8_t TEMPLATE_Init(void) |
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| 100 | { |
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| 101 | /* |
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| 102 | Add your initialization code here |
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| 103 | */ |
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| 104 | return (0); |
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| 105 | } |
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| 106 | |||
| 107 | /** |
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| 108 | * @brief TEMPLATE_DeInit |
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| 109 | * DeInitializes the CDC media low layer |
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| 110 | * @param None |
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| 111 | * @retval Result of the operation: USBD_OK if all operations are OK else USBD_FAIL |
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| 112 | */ |
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| 113 | static int8_t TEMPLATE_DeInit(void) |
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| 114 | { |
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| 115 | /* |
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| 116 | Add your deinitialization code here |
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| 117 | */ |
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| 118 | return (0); |
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| 119 | } |
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| 120 | |||
| 121 | |||
| 122 | /** |
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| 123 | * @brief TEMPLATE_Control |
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| 124 | * Manage the CDC class requests |
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| 125 | * @param Cmd: Command code |
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| 126 | * @param Buf: Buffer containing command data (request parameters) |
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| 127 | * @param Len: Number of data to be sent (in bytes) |
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| 128 | * @retval Result of the operation: USBD_OK if all operations are OK else USBD_FAIL |
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| 129 | */ |
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| 130 | static int8_t TEMPLATE_Control (uint8_t cmd, uint8_t* pbuf, uint16_t length) |
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| 131 | { |
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| 132 | switch (cmd) |
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| 133 | { |
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| 134 | case CDC_SEND_ENCAPSULATED_COMMAND: |
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| 135 | /* Add your code here */ |
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| 136 | break; |
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| 137 | |||
| 138 | case CDC_GET_ENCAPSULATED_RESPONSE: |
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| 139 | /* Add your code here */ |
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| 140 | break; |
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| 141 | |||
| 142 | case CDC_SET_COMM_FEATURE: |
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| 143 | /* Add your code here */ |
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| 144 | break; |
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| 145 | |||
| 146 | case CDC_GET_COMM_FEATURE: |
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| 147 | /* Add your code here */ |
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| 148 | break; |
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| 149 | |||
| 150 | case CDC_CLEAR_COMM_FEATURE: |
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| 151 | /* Add your code here */ |
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| 152 | break; |
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| 153 | |||
| 154 | case CDC_SET_LINE_CODING: |
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| 155 | linecoding.bitrate = (uint32_t)(pbuf[0] | (pbuf[1] << 8) |\ |
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| 156 | (pbuf[2] << 16) | (pbuf[3] << 24)); |
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| 157 | linecoding.format = pbuf[4]; |
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| 158 | linecoding.paritytype = pbuf[5]; |
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| 159 | linecoding.datatype = pbuf[6]; |
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| 160 | |||
| 161 | /* Add your code here */ |
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| 162 | break; |
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| 163 | |||
| 164 | case CDC_GET_LINE_CODING: |
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| 165 | pbuf[0] = (uint8_t)(linecoding.bitrate); |
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| 166 | pbuf[1] = (uint8_t)(linecoding.bitrate >> 8); |
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| 167 | pbuf[2] = (uint8_t)(linecoding.bitrate >> 16); |
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| 168 | pbuf[3] = (uint8_t)(linecoding.bitrate >> 24); |
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| 169 | pbuf[4] = linecoding.format; |
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| 170 | pbuf[5] = linecoding.paritytype; |
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| 171 | pbuf[6] = linecoding.datatype; |
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| 172 | |||
| 173 | /* Add your code here */ |
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| 174 | break; |
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| 175 | |||
| 176 | case CDC_SET_CONTROL_LINE_STATE: |
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| 177 | /* Add your code here */ |
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| 178 | break; |
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| 179 | |||
| 180 | case CDC_SEND_BREAK: |
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| 181 | /* Add your code here */ |
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| 182 | break; |
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| 183 | |||
| 184 | default: |
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| 185 | break; |
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| 186 | } |
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| 187 | |||
| 188 | return (0); |
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| 189 | } |
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| 190 | |||
| 191 | /** |
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| 192 | * @brief TEMPLATE_Receive |
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| 193 | * Data received over USB OUT endpoint are sent over CDC interface |
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| 194 | * through this function. |
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| 195 | * |
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| 196 | * @note |
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| 197 | * This function will issue a NAK packet on any OUT packet received on |
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| 198 | * USB endpoint untill exiting this function. If you exit this function |
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| 199 | * before transfer is complete on CDC interface (ie. using DMA controller) |
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| 200 | * it will result in receiving more data while previous ones are still |
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| 201 | * not sent. |
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| 202 | * |
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| 203 | * @param Buf: Buffer of data to be received |
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| 204 | * @param Len: Number of data received (in bytes) |
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| 205 | * @retval Result of the operation: USBD_OK if all operations are OK else USBD_FAIL |
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| 206 | */ |
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| 207 | static int8_t TEMPLATE_Receive (uint8_t* Buf, uint32_t *Len) |
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| 208 | { |
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| 209 | |||
| 210 | return (0); |
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| 211 | } |
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| 212 | |||
| 213 | /** |
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| 214 | * @} |
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| 215 | */ |
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| 216 | |||
| 217 | /** |
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| 218 | * @} |
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| 219 | */ |
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| 220 | |||
| 221 | /** |
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| 222 | * @} |
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| 223 | */ |
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| 224 | |||
| 225 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |
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| 226 |