USB CDC library for MBED on STM32
usbd_ioreq.c@0:7cf972f622d3, 2018-09-09 (annotated)
- Committer:
- caoyuan9642
- Date:
- Sun Sep 09 19:03:18 2018 +0000
- Revision:
- 0:7cf972f622d3
usb
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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caoyuan9642 | 0:7cf972f622d3 | 1 | /** |
caoyuan9642 | 0:7cf972f622d3 | 2 | ****************************************************************************** |
caoyuan9642 | 0:7cf972f622d3 | 3 | * @file usbd_ioreq.c |
caoyuan9642 | 0:7cf972f622d3 | 4 | * @author MCD Application Team |
caoyuan9642 | 0:7cf972f622d3 | 5 | * @version V2.4.2 |
caoyuan9642 | 0:7cf972f622d3 | 6 | * @date 11-December-2015 |
caoyuan9642 | 0:7cf972f622d3 | 7 | * @brief This file provides the IO requests APIs for control endpoints. |
caoyuan9642 | 0:7cf972f622d3 | 8 | ****************************************************************************** |
caoyuan9642 | 0:7cf972f622d3 | 9 | * @attention |
caoyuan9642 | 0:7cf972f622d3 | 10 | * |
caoyuan9642 | 0:7cf972f622d3 | 11 | * <h2><center>© COPYRIGHT 2015 STMicroelectronics</center></h2> |
caoyuan9642 | 0:7cf972f622d3 | 12 | * |
caoyuan9642 | 0:7cf972f622d3 | 13 | * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License"); |
caoyuan9642 | 0:7cf972f622d3 | 14 | * You may not use this file except in compliance with the License. |
caoyuan9642 | 0:7cf972f622d3 | 15 | * You may obtain a copy of the License at: |
caoyuan9642 | 0:7cf972f622d3 | 16 | * |
caoyuan9642 | 0:7cf972f622d3 | 17 | * http://www.st.com/software_license_agreement_liberty_v2 |
caoyuan9642 | 0:7cf972f622d3 | 18 | * |
caoyuan9642 | 0:7cf972f622d3 | 19 | * Unless required by applicable law or agreed to in writing, software |
caoyuan9642 | 0:7cf972f622d3 | 20 | * distributed under the License is distributed on an "AS IS" BASIS, |
caoyuan9642 | 0:7cf972f622d3 | 21 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
caoyuan9642 | 0:7cf972f622d3 | 22 | * See the License for the specific language governing permissions and |
caoyuan9642 | 0:7cf972f622d3 | 23 | * limitations under the License. |
caoyuan9642 | 0:7cf972f622d3 | 24 | * |
caoyuan9642 | 0:7cf972f622d3 | 25 | ****************************************************************************** |
caoyuan9642 | 0:7cf972f622d3 | 26 | */ |
caoyuan9642 | 0:7cf972f622d3 | 27 | |
caoyuan9642 | 0:7cf972f622d3 | 28 | /* Includes ------------------------------------------------------------------*/ |
caoyuan9642 | 0:7cf972f622d3 | 29 | #include "usbd_ioreq.h" |
caoyuan9642 | 0:7cf972f622d3 | 30 | |
caoyuan9642 | 0:7cf972f622d3 | 31 | /** @addtogroup STM32_USB_DEVICE_LIBRARY |
caoyuan9642 | 0:7cf972f622d3 | 32 | * @{ |
caoyuan9642 | 0:7cf972f622d3 | 33 | */ |
caoyuan9642 | 0:7cf972f622d3 | 34 | |
caoyuan9642 | 0:7cf972f622d3 | 35 | |
caoyuan9642 | 0:7cf972f622d3 | 36 | /** @defgroup USBD_IOREQ |
caoyuan9642 | 0:7cf972f622d3 | 37 | * @brief control I/O requests module |
caoyuan9642 | 0:7cf972f622d3 | 38 | * @{ |
caoyuan9642 | 0:7cf972f622d3 | 39 | */ |
caoyuan9642 | 0:7cf972f622d3 | 40 | |
caoyuan9642 | 0:7cf972f622d3 | 41 | /** @defgroup USBD_IOREQ_Private_TypesDefinitions |
caoyuan9642 | 0:7cf972f622d3 | 42 | * @{ |
caoyuan9642 | 0:7cf972f622d3 | 43 | */ |
caoyuan9642 | 0:7cf972f622d3 | 44 | /** |
caoyuan9642 | 0:7cf972f622d3 | 45 | * @} |
caoyuan9642 | 0:7cf972f622d3 | 46 | */ |
caoyuan9642 | 0:7cf972f622d3 | 47 | |
caoyuan9642 | 0:7cf972f622d3 | 48 | |
caoyuan9642 | 0:7cf972f622d3 | 49 | /** @defgroup USBD_IOREQ_Private_Defines |
caoyuan9642 | 0:7cf972f622d3 | 50 | * @{ |
caoyuan9642 | 0:7cf972f622d3 | 51 | */ |
caoyuan9642 | 0:7cf972f622d3 | 52 | |
caoyuan9642 | 0:7cf972f622d3 | 53 | /** |
caoyuan9642 | 0:7cf972f622d3 | 54 | * @} |
caoyuan9642 | 0:7cf972f622d3 | 55 | */ |
caoyuan9642 | 0:7cf972f622d3 | 56 | |
caoyuan9642 | 0:7cf972f622d3 | 57 | |
caoyuan9642 | 0:7cf972f622d3 | 58 | /** @defgroup USBD_IOREQ_Private_Macros |
caoyuan9642 | 0:7cf972f622d3 | 59 | * @{ |
caoyuan9642 | 0:7cf972f622d3 | 60 | */ |
caoyuan9642 | 0:7cf972f622d3 | 61 | /** |
caoyuan9642 | 0:7cf972f622d3 | 62 | * @} |
caoyuan9642 | 0:7cf972f622d3 | 63 | */ |
caoyuan9642 | 0:7cf972f622d3 | 64 | |
caoyuan9642 | 0:7cf972f622d3 | 65 | |
caoyuan9642 | 0:7cf972f622d3 | 66 | /** @defgroup USBD_IOREQ_Private_Variables |
caoyuan9642 | 0:7cf972f622d3 | 67 | * @{ |
caoyuan9642 | 0:7cf972f622d3 | 68 | */ |
caoyuan9642 | 0:7cf972f622d3 | 69 | |
caoyuan9642 | 0:7cf972f622d3 | 70 | /** |
caoyuan9642 | 0:7cf972f622d3 | 71 | * @} |
caoyuan9642 | 0:7cf972f622d3 | 72 | */ |
caoyuan9642 | 0:7cf972f622d3 | 73 | |
caoyuan9642 | 0:7cf972f622d3 | 74 | |
caoyuan9642 | 0:7cf972f622d3 | 75 | /** @defgroup USBD_IOREQ_Private_FunctionPrototypes |
caoyuan9642 | 0:7cf972f622d3 | 76 | * @{ |
caoyuan9642 | 0:7cf972f622d3 | 77 | */ |
caoyuan9642 | 0:7cf972f622d3 | 78 | /** |
caoyuan9642 | 0:7cf972f622d3 | 79 | * @} |
caoyuan9642 | 0:7cf972f622d3 | 80 | */ |
caoyuan9642 | 0:7cf972f622d3 | 81 | |
caoyuan9642 | 0:7cf972f622d3 | 82 | |
caoyuan9642 | 0:7cf972f622d3 | 83 | /** @defgroup USBD_IOREQ_Private_Functions |
caoyuan9642 | 0:7cf972f622d3 | 84 | * @{ |
caoyuan9642 | 0:7cf972f622d3 | 85 | */ |
caoyuan9642 | 0:7cf972f622d3 | 86 | |
caoyuan9642 | 0:7cf972f622d3 | 87 | /** |
caoyuan9642 | 0:7cf972f622d3 | 88 | * @brief USBD_CtlSendData |
caoyuan9642 | 0:7cf972f622d3 | 89 | * send data on the ctl pipe |
caoyuan9642 | 0:7cf972f622d3 | 90 | * @param pdev: device instance |
caoyuan9642 | 0:7cf972f622d3 | 91 | * @param buff: pointer to data buffer |
caoyuan9642 | 0:7cf972f622d3 | 92 | * @param len: length of data to be sent |
caoyuan9642 | 0:7cf972f622d3 | 93 | * @retval status |
caoyuan9642 | 0:7cf972f622d3 | 94 | */ |
caoyuan9642 | 0:7cf972f622d3 | 95 | USBD_StatusTypeDef USBD_CtlSendData (USBD_HandleTypeDef *pdev, |
caoyuan9642 | 0:7cf972f622d3 | 96 | uint8_t *pbuf, |
caoyuan9642 | 0:7cf972f622d3 | 97 | uint16_t len) |
caoyuan9642 | 0:7cf972f622d3 | 98 | { |
caoyuan9642 | 0:7cf972f622d3 | 99 | /* Set EP0 State */ |
caoyuan9642 | 0:7cf972f622d3 | 100 | pdev->ep0_state = USBD_EP0_DATA_IN; |
caoyuan9642 | 0:7cf972f622d3 | 101 | pdev->ep_in[0].total_length = len; |
caoyuan9642 | 0:7cf972f622d3 | 102 | pdev->ep_in[0].rem_length = len; |
caoyuan9642 | 0:7cf972f622d3 | 103 | /* Start the transfer */ |
caoyuan9642 | 0:7cf972f622d3 | 104 | USBD_LL_Transmit (pdev, 0x00, pbuf, len); |
caoyuan9642 | 0:7cf972f622d3 | 105 | |
caoyuan9642 | 0:7cf972f622d3 | 106 | return USBD_OK; |
caoyuan9642 | 0:7cf972f622d3 | 107 | } |
caoyuan9642 | 0:7cf972f622d3 | 108 | |
caoyuan9642 | 0:7cf972f622d3 | 109 | /** |
caoyuan9642 | 0:7cf972f622d3 | 110 | * @brief USBD_CtlContinueSendData |
caoyuan9642 | 0:7cf972f622d3 | 111 | * continue sending data on the ctl pipe |
caoyuan9642 | 0:7cf972f622d3 | 112 | * @param pdev: device instance |
caoyuan9642 | 0:7cf972f622d3 | 113 | * @param buff: pointer to data buffer |
caoyuan9642 | 0:7cf972f622d3 | 114 | * @param len: length of data to be sent |
caoyuan9642 | 0:7cf972f622d3 | 115 | * @retval status |
caoyuan9642 | 0:7cf972f622d3 | 116 | */ |
caoyuan9642 | 0:7cf972f622d3 | 117 | USBD_StatusTypeDef USBD_CtlContinueSendData (USBD_HandleTypeDef *pdev, |
caoyuan9642 | 0:7cf972f622d3 | 118 | uint8_t *pbuf, |
caoyuan9642 | 0:7cf972f622d3 | 119 | uint16_t len) |
caoyuan9642 | 0:7cf972f622d3 | 120 | { |
caoyuan9642 | 0:7cf972f622d3 | 121 | /* Start the next transfer */ |
caoyuan9642 | 0:7cf972f622d3 | 122 | USBD_LL_Transmit (pdev, 0x00, pbuf, len); |
caoyuan9642 | 0:7cf972f622d3 | 123 | |
caoyuan9642 | 0:7cf972f622d3 | 124 | return USBD_OK; |
caoyuan9642 | 0:7cf972f622d3 | 125 | } |
caoyuan9642 | 0:7cf972f622d3 | 126 | |
caoyuan9642 | 0:7cf972f622d3 | 127 | /** |
caoyuan9642 | 0:7cf972f622d3 | 128 | * @brief USBD_CtlPrepareRx |
caoyuan9642 | 0:7cf972f622d3 | 129 | * receive data on the ctl pipe |
caoyuan9642 | 0:7cf972f622d3 | 130 | * @param pdev: device instance |
caoyuan9642 | 0:7cf972f622d3 | 131 | * @param buff: pointer to data buffer |
caoyuan9642 | 0:7cf972f622d3 | 132 | * @param len: length of data to be received |
caoyuan9642 | 0:7cf972f622d3 | 133 | * @retval status |
caoyuan9642 | 0:7cf972f622d3 | 134 | */ |
caoyuan9642 | 0:7cf972f622d3 | 135 | USBD_StatusTypeDef USBD_CtlPrepareRx (USBD_HandleTypeDef *pdev, |
caoyuan9642 | 0:7cf972f622d3 | 136 | uint8_t *pbuf, |
caoyuan9642 | 0:7cf972f622d3 | 137 | uint16_t len) |
caoyuan9642 | 0:7cf972f622d3 | 138 | { |
caoyuan9642 | 0:7cf972f622d3 | 139 | /* Set EP0 State */ |
caoyuan9642 | 0:7cf972f622d3 | 140 | pdev->ep0_state = USBD_EP0_DATA_OUT; |
caoyuan9642 | 0:7cf972f622d3 | 141 | pdev->ep_out[0].total_length = len; |
caoyuan9642 | 0:7cf972f622d3 | 142 | pdev->ep_out[0].rem_length = len; |
caoyuan9642 | 0:7cf972f622d3 | 143 | /* Start the transfer */ |
caoyuan9642 | 0:7cf972f622d3 | 144 | USBD_LL_PrepareReceive (pdev, |
caoyuan9642 | 0:7cf972f622d3 | 145 | 0, |
caoyuan9642 | 0:7cf972f622d3 | 146 | pbuf, |
caoyuan9642 | 0:7cf972f622d3 | 147 | len); |
caoyuan9642 | 0:7cf972f622d3 | 148 | |
caoyuan9642 | 0:7cf972f622d3 | 149 | return USBD_OK; |
caoyuan9642 | 0:7cf972f622d3 | 150 | } |
caoyuan9642 | 0:7cf972f622d3 | 151 | |
caoyuan9642 | 0:7cf972f622d3 | 152 | /** |
caoyuan9642 | 0:7cf972f622d3 | 153 | * @brief USBD_CtlContinueRx |
caoyuan9642 | 0:7cf972f622d3 | 154 | * continue receive data on the ctl pipe |
caoyuan9642 | 0:7cf972f622d3 | 155 | * @param pdev: device instance |
caoyuan9642 | 0:7cf972f622d3 | 156 | * @param buff: pointer to data buffer |
caoyuan9642 | 0:7cf972f622d3 | 157 | * @param len: length of data to be received |
caoyuan9642 | 0:7cf972f622d3 | 158 | * @retval status |
caoyuan9642 | 0:7cf972f622d3 | 159 | */ |
caoyuan9642 | 0:7cf972f622d3 | 160 | USBD_StatusTypeDef USBD_CtlContinueRx (USBD_HandleTypeDef *pdev, |
caoyuan9642 | 0:7cf972f622d3 | 161 | uint8_t *pbuf, |
caoyuan9642 | 0:7cf972f622d3 | 162 | uint16_t len) |
caoyuan9642 | 0:7cf972f622d3 | 163 | { |
caoyuan9642 | 0:7cf972f622d3 | 164 | |
caoyuan9642 | 0:7cf972f622d3 | 165 | USBD_LL_PrepareReceive (pdev, |
caoyuan9642 | 0:7cf972f622d3 | 166 | 0, |
caoyuan9642 | 0:7cf972f622d3 | 167 | pbuf, |
caoyuan9642 | 0:7cf972f622d3 | 168 | len); |
caoyuan9642 | 0:7cf972f622d3 | 169 | return USBD_OK; |
caoyuan9642 | 0:7cf972f622d3 | 170 | } |
caoyuan9642 | 0:7cf972f622d3 | 171 | /** |
caoyuan9642 | 0:7cf972f622d3 | 172 | * @brief USBD_CtlSendStatus |
caoyuan9642 | 0:7cf972f622d3 | 173 | * send zero lzngth packet on the ctl pipe |
caoyuan9642 | 0:7cf972f622d3 | 174 | * @param pdev: device instance |
caoyuan9642 | 0:7cf972f622d3 | 175 | * @retval status |
caoyuan9642 | 0:7cf972f622d3 | 176 | */ |
caoyuan9642 | 0:7cf972f622d3 | 177 | USBD_StatusTypeDef USBD_CtlSendStatus (USBD_HandleTypeDef *pdev) |
caoyuan9642 | 0:7cf972f622d3 | 178 | { |
caoyuan9642 | 0:7cf972f622d3 | 179 | |
caoyuan9642 | 0:7cf972f622d3 | 180 | /* Set EP0 State */ |
caoyuan9642 | 0:7cf972f622d3 | 181 | pdev->ep0_state = USBD_EP0_STATUS_IN; |
caoyuan9642 | 0:7cf972f622d3 | 182 | |
caoyuan9642 | 0:7cf972f622d3 | 183 | /* Start the transfer */ |
caoyuan9642 | 0:7cf972f622d3 | 184 | USBD_LL_Transmit (pdev, 0x00, NULL, 0); |
caoyuan9642 | 0:7cf972f622d3 | 185 | |
caoyuan9642 | 0:7cf972f622d3 | 186 | return USBD_OK; |
caoyuan9642 | 0:7cf972f622d3 | 187 | } |
caoyuan9642 | 0:7cf972f622d3 | 188 | |
caoyuan9642 | 0:7cf972f622d3 | 189 | /** |
caoyuan9642 | 0:7cf972f622d3 | 190 | * @brief USBD_CtlReceiveStatus |
caoyuan9642 | 0:7cf972f622d3 | 191 | * receive zero lzngth packet on the ctl pipe |
caoyuan9642 | 0:7cf972f622d3 | 192 | * @param pdev: device instance |
caoyuan9642 | 0:7cf972f622d3 | 193 | * @retval status |
caoyuan9642 | 0:7cf972f622d3 | 194 | */ |
caoyuan9642 | 0:7cf972f622d3 | 195 | USBD_StatusTypeDef USBD_CtlReceiveStatus (USBD_HandleTypeDef *pdev) |
caoyuan9642 | 0:7cf972f622d3 | 196 | { |
caoyuan9642 | 0:7cf972f622d3 | 197 | /* Set EP0 State */ |
caoyuan9642 | 0:7cf972f622d3 | 198 | pdev->ep0_state = USBD_EP0_STATUS_OUT; |
caoyuan9642 | 0:7cf972f622d3 | 199 | |
caoyuan9642 | 0:7cf972f622d3 | 200 | /* Start the transfer */ |
caoyuan9642 | 0:7cf972f622d3 | 201 | USBD_LL_PrepareReceive ( pdev, |
caoyuan9642 | 0:7cf972f622d3 | 202 | 0, |
caoyuan9642 | 0:7cf972f622d3 | 203 | NULL, |
caoyuan9642 | 0:7cf972f622d3 | 204 | 0); |
caoyuan9642 | 0:7cf972f622d3 | 205 | |
caoyuan9642 | 0:7cf972f622d3 | 206 | return USBD_OK; |
caoyuan9642 | 0:7cf972f622d3 | 207 | } |
caoyuan9642 | 0:7cf972f622d3 | 208 | |
caoyuan9642 | 0:7cf972f622d3 | 209 | |
caoyuan9642 | 0:7cf972f622d3 | 210 | /** |
caoyuan9642 | 0:7cf972f622d3 | 211 | * @brief USBD_GetRxCount |
caoyuan9642 | 0:7cf972f622d3 | 212 | * returns the received data length |
caoyuan9642 | 0:7cf972f622d3 | 213 | * @param pdev: device instance |
caoyuan9642 | 0:7cf972f622d3 | 214 | * @param ep_addr: endpoint address |
caoyuan9642 | 0:7cf972f622d3 | 215 | * @retval Rx Data blength |
caoyuan9642 | 0:7cf972f622d3 | 216 | */ |
caoyuan9642 | 0:7cf972f622d3 | 217 | uint16_t USBD_GetRxCount (USBD_HandleTypeDef *pdev , uint8_t ep_addr) |
caoyuan9642 | 0:7cf972f622d3 | 218 | { |
caoyuan9642 | 0:7cf972f622d3 | 219 | return USBD_LL_GetRxDataSize(pdev, ep_addr); |
caoyuan9642 | 0:7cf972f622d3 | 220 | } |
caoyuan9642 | 0:7cf972f622d3 | 221 | |
caoyuan9642 | 0:7cf972f622d3 | 222 | /** |
caoyuan9642 | 0:7cf972f622d3 | 223 | * @} |
caoyuan9642 | 0:7cf972f622d3 | 224 | */ |
caoyuan9642 | 0:7cf972f622d3 | 225 | |
caoyuan9642 | 0:7cf972f622d3 | 226 | |
caoyuan9642 | 0:7cf972f622d3 | 227 | /** |
caoyuan9642 | 0:7cf972f622d3 | 228 | * @} |
caoyuan9642 | 0:7cf972f622d3 | 229 | */ |
caoyuan9642 | 0:7cf972f622d3 | 230 | |
caoyuan9642 | 0:7cf972f622d3 | 231 | |
caoyuan9642 | 0:7cf972f622d3 | 232 | /** |
caoyuan9642 | 0:7cf972f622d3 | 233 | * @} |
caoyuan9642 | 0:7cf972f622d3 | 234 | */ |
caoyuan9642 | 0:7cf972f622d3 | 235 | |
caoyuan9642 | 0:7cf972f622d3 | 236 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |
caoyuan9642 | 0:7cf972f622d3 | 237 |