kopia lustrzana https://github.com/micropython/micropython
869 wiersze
20 KiB
C
869 wiersze
20 KiB
C
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/**
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******************************************************************************
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* @file usbd_req.c
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* @author MCD Application Team
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* @version V1.1.0
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* @date 19-March-2012
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* @brief This file provides the standard USB requests following chapter 9.
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******************************************************************************
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* @attention
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*
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* <h2><center>© COPYRIGHT 2012 STMicroelectronics</center></h2>
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*
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* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
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* You may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.st.com/software_license_agreement_liberty_v2
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "usbd_req.h"
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#include "usbd_ioreq.h"
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#include "usbd_desc.h"
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/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
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* @{
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*/
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/** @defgroup USBD_REQ
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* @brief USB standard requests module
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* @{
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*/
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/** @defgroup USBD_REQ_Private_TypesDefinitions
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* @{
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*/
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/**
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* @}
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*/
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/** @defgroup USBD_REQ_Private_Defines
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* @{
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*/
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/**
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* @}
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*/
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/** @defgroup USBD_REQ_Private_Macros
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* @{
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*/
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/**
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* @}
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*/
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/** @defgroup USBD_REQ_Private_Variables
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* @{
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*/
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extern __IO USB_OTG_DCTL_TypeDef SET_TEST_MODE;
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#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
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#if defined ( __ICCARM__ ) /*!< IAR Compiler */
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#pragma data_alignment=4
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#endif
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#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
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__ALIGN_BEGIN uint32_t USBD_ep_status __ALIGN_END = 0;
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#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
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#if defined ( __ICCARM__ ) /*!< IAR Compiler */
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#pragma data_alignment=4
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#endif
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#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
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__ALIGN_BEGIN uint32_t USBD_default_cfg __ALIGN_END = 0;
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#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
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#if defined ( __ICCARM__ ) /*!< IAR Compiler */
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#pragma data_alignment=4
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#endif
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#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
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__ALIGN_BEGIN uint32_t USBD_cfg_status __ALIGN_END = 0;
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#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
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#if defined ( __ICCARM__ ) /*!< IAR Compiler */
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#pragma data_alignment=4
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#endif
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#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
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__ALIGN_BEGIN uint8_t USBD_StrDesc[USB_MAX_STR_DESC_SIZ] __ALIGN_END ;
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/**
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* @}
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*/
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/** @defgroup USBD_REQ_Private_FunctionPrototypes
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* @{
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*/
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static void USBD_GetDescriptor(USB_OTG_CORE_HANDLE *pdev,
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USB_SETUP_REQ *req);
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static void USBD_SetAddress(USB_OTG_CORE_HANDLE *pdev,
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USB_SETUP_REQ *req);
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static void USBD_SetConfig(USB_OTG_CORE_HANDLE *pdev,
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USB_SETUP_REQ *req);
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static void USBD_GetConfig(USB_OTG_CORE_HANDLE *pdev,
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USB_SETUP_REQ *req);
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static void USBD_GetStatus(USB_OTG_CORE_HANDLE *pdev,
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USB_SETUP_REQ *req);
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static void USBD_SetFeature(USB_OTG_CORE_HANDLE *pdev,
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USB_SETUP_REQ *req);
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static void USBD_ClrFeature(USB_OTG_CORE_HANDLE *pdev,
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USB_SETUP_REQ *req);
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static uint8_t USBD_GetLen(const char *buf);
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/**
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* @}
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*/
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/** @defgroup USBD_REQ_Private_Functions
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* @{
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*/
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/**
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* @brief USBD_StdDevReq
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* Handle standard usb device requests
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* @param pdev: device instance
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* @param req: usb request
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* @retval status
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*/
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USBD_Status USBD_StdDevReq (USB_OTG_CORE_HANDLE *pdev, USB_SETUP_REQ *req)
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{
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USBD_Status ret = USBD_OK;
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switch (req->bRequest)
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{
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case USB_REQ_GET_DESCRIPTOR:
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USBD_GetDescriptor (pdev, req) ;
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break;
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case USB_REQ_SET_ADDRESS:
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USBD_SetAddress(pdev, req);
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break;
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case USB_REQ_SET_CONFIGURATION:
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USBD_SetConfig (pdev , req);
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break;
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case USB_REQ_GET_CONFIGURATION:
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USBD_GetConfig (pdev , req);
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break;
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case USB_REQ_GET_STATUS:
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USBD_GetStatus (pdev , req);
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break;
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case USB_REQ_SET_FEATURE:
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USBD_SetFeature (pdev , req);
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break;
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case USB_REQ_CLEAR_FEATURE:
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USBD_ClrFeature (pdev , req);
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break;
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default:
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USBD_CtlError(pdev , req);
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break;
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}
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return ret;
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}
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/**
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* @brief USBD_StdItfReq
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* Handle standard usb interface requests
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* @param pdev: USB OTG device instance
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* @param req: usb request
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* @retval status
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*/
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USBD_Status USBD_StdItfReq (USB_OTG_CORE_HANDLE *pdev, USB_SETUP_REQ *req)
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{
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USBD_Status ret = USBD_OK;
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switch (pdev->dev.device_status)
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{
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case USB_OTG_CONFIGURED:
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if (LOBYTE(req->wIndex) <= USBD_ITF_MAX_NUM)
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{
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pdev->dev.class_cb->Setup (pdev, req);
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if((req->wLength == 0)&& (ret == USBD_OK))
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{
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USBD_CtlSendStatus(pdev);
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}
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}
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else
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{
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USBD_CtlError(pdev , req);
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}
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break;
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default:
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USBD_CtlError(pdev , req);
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break;
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}
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return ret;
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}
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/**
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* @brief USBD_StdEPReq
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* Handle standard usb endpoint requests
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* @param pdev: USB OTG device instance
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* @param req: usb request
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* @retval status
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*/
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USBD_Status USBD_StdEPReq (USB_OTG_CORE_HANDLE *pdev, USB_SETUP_REQ *req)
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{
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uint8_t ep_addr;
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USBD_Status ret = USBD_OK;
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ep_addr = LOBYTE(req->wIndex);
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switch (req->bRequest)
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{
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case USB_REQ_SET_FEATURE :
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switch (pdev->dev.device_status)
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{
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case USB_OTG_ADDRESSED:
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if ((ep_addr != 0x00) && (ep_addr != 0x80))
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{
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DCD_EP_Stall(pdev , ep_addr);
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}
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break;
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case USB_OTG_CONFIGURED:
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if (req->wValue == USB_FEATURE_EP_HALT)
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{
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if ((ep_addr != 0x00) && (ep_addr != 0x80))
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{
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DCD_EP_Stall(pdev , ep_addr);
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}
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}
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pdev->dev.class_cb->Setup (pdev, req);
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USBD_CtlSendStatus(pdev);
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break;
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default:
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USBD_CtlError(pdev , req);
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break;
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}
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break;
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case USB_REQ_CLEAR_FEATURE :
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switch (pdev->dev.device_status)
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{
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case USB_OTG_ADDRESSED:
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if ((ep_addr != 0x00) && (ep_addr != 0x80))
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{
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DCD_EP_Stall(pdev , ep_addr);
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}
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break;
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case USB_OTG_CONFIGURED:
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if (req->wValue == USB_FEATURE_EP_HALT)
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{
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if ((ep_addr != 0x00) && (ep_addr != 0x80))
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{
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DCD_EP_ClrStall(pdev , ep_addr);
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pdev->dev.class_cb->Setup (pdev, req);
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}
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USBD_CtlSendStatus(pdev);
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}
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break;
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default:
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USBD_CtlError(pdev , req);
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break;
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}
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break;
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case USB_REQ_GET_STATUS:
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switch (pdev->dev.device_status)
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{
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case USB_OTG_ADDRESSED:
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if ((ep_addr != 0x00) && (ep_addr != 0x80))
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{
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DCD_EP_Stall(pdev , ep_addr);
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}
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break;
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case USB_OTG_CONFIGURED:
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if ((ep_addr & 0x80)== 0x80)
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{
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if(pdev->dev.in_ep[ep_addr & 0x7F].is_stall)
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{
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USBD_ep_status = 0x0001;
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}
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else
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{
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USBD_ep_status = 0x0000;
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}
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}
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else if ((ep_addr & 0x80)== 0x00)
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{
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if(pdev->dev.out_ep[ep_addr].is_stall)
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{
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USBD_ep_status = 0x0001;
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}
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else
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{
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USBD_ep_status = 0x0000;
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}
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}
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USBD_CtlSendData (pdev,
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(uint8_t *)&USBD_ep_status,
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2);
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break;
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default:
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USBD_CtlError(pdev , req);
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break;
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}
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break;
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default:
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break;
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}
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return ret;
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}
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/**
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* @brief USBD_GetDescriptor
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* Handle Get Descriptor requests
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* @param pdev: device instance
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* @param req: usb request
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* @retval status
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*/
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static void USBD_GetDescriptor(USB_OTG_CORE_HANDLE *pdev,
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USB_SETUP_REQ *req)
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{
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uint16_t len;
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uint8_t *pbuf;
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switch (req->wValue >> 8)
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{
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case USB_DESC_TYPE_DEVICE:
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pbuf = pdev->dev.usr_device->GetDeviceDescriptor(pdev->cfg.speed, &len);
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if ((req->wLength == 64) ||( pdev->dev.device_status == USB_OTG_DEFAULT))
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{
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len = 8;
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}
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break;
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case USB_DESC_TYPE_CONFIGURATION:
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pbuf = (uint8_t *)pdev->dev.class_cb->GetConfigDescriptor(pdev->cfg.speed, &len);
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#ifdef USB_OTG_HS_CORE
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if((pdev->cfg.speed == USB_OTG_SPEED_FULL )&&
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(pdev->cfg.phy_itface == USB_OTG_ULPI_PHY))
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{
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pbuf = (uint8_t *)pdev->dev.class_cb->GetOtherConfigDescriptor(pdev->cfg.speed, &len);
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}
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#endif
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pbuf[1] = USB_DESC_TYPE_CONFIGURATION;
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pdev->dev.pConfig_descriptor = pbuf;
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break;
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case USB_DESC_TYPE_STRING:
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switch ((uint8_t)(req->wValue))
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{
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case USBD_IDX_LANGID_STR:
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pbuf = pdev->dev.usr_device->GetLangIDStrDescriptor(pdev->cfg.speed, &len);
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break;
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case USBD_IDX_MFC_STR:
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pbuf = pdev->dev.usr_device->GetManufacturerStrDescriptor(pdev->cfg.speed, &len);
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break;
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case USBD_IDX_PRODUCT_STR:
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pbuf = pdev->dev.usr_device->GetProductStrDescriptor(pdev->cfg.speed, &len);
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break;
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case USBD_IDX_SERIAL_STR:
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pbuf = pdev->dev.usr_device->GetSerialStrDescriptor(pdev->cfg.speed, &len);
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break;
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case USBD_IDX_CONFIG_STR:
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pbuf = pdev->dev.usr_device->GetConfigurationStrDescriptor(pdev->cfg.speed, &len);
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break;
|
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case USBD_IDX_INTERFACE_STR:
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pbuf = pdev->dev.usr_device->GetInterfaceStrDescriptor(pdev->cfg.speed, &len);
|
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break;
|
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default:
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#ifdef USB_SUPPORT_USER_STRING_DESC
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pbuf = pdev->dev.class_cb->GetUsrStrDescriptor(pdev->cfg.speed, (req->wValue) , &len);
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break;
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#else
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USBD_CtlError(pdev , req);
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return;
|
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#endif /* USBD_CtlError(pdev , req); */
|
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}
|
||
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break;
|
||
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case USB_DESC_TYPE_DEVICE_QUALIFIER:
|
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|
#ifdef USB_OTG_HS_CORE
|
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if(pdev->cfg.speed == USB_OTG_SPEED_HIGH )
|
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{
|
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pbuf = (uint8_t *)pdev->dev.class_cb->GetConfigDescriptor(pdev->cfg.speed, &len);
|
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USBD_DeviceQualifierDesc[4]= pbuf[14];
|
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USBD_DeviceQualifierDesc[5]= pbuf[15];
|
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USBD_DeviceQualifierDesc[6]= pbuf[16];
|
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pbuf = USBD_DeviceQualifierDesc;
|
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len = USB_LEN_DEV_QUALIFIER_DESC;
|
||
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break;
|
||
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}
|
||
|
else
|
||
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{
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USBD_CtlError(pdev , req);
|
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return;
|
||
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}
|
||
|
#else
|
||
|
USBD_CtlError(pdev , req);
|
||
|
return;
|
||
|
#endif
|
||
|
|
||
|
case USB_DESC_TYPE_OTHER_SPEED_CONFIGURATION:
|
||
|
#ifdef USB_OTG_HS_CORE
|
||
|
|
||
|
if(pdev->cfg.speed == USB_OTG_SPEED_HIGH )
|
||
|
{
|
||
|
pbuf = (uint8_t *)pdev->dev.class_cb->GetOtherConfigDescriptor(pdev->cfg.speed, &len);
|
||
|
pbuf[1] = USB_DESC_TYPE_OTHER_SPEED_CONFIGURATION;
|
||
|
break;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
USBD_CtlError(pdev , req);
|
||
|
return;
|
||
|
}
|
||
|
#else
|
||
|
USBD_CtlError(pdev , req);
|
||
|
return;
|
||
|
#endif
|
||
|
|
||
|
|
||
|
default:
|
||
|
USBD_CtlError(pdev , req);
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
if((len != 0)&& (req->wLength != 0))
|
||
|
{
|
||
|
|
||
|
len = MIN(len , req->wLength);
|
||
|
|
||
|
USBD_CtlSendData (pdev,
|
||
|
pbuf,
|
||
|
len);
|
||
|
}
|
||
|
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief USBD_SetAddress
|
||
|
* Set device address
|
||
|
* @param pdev: device instance
|
||
|
* @param req: usb request
|
||
|
* @retval status
|
||
|
*/
|
||
|
static void USBD_SetAddress(USB_OTG_CORE_HANDLE *pdev,
|
||
|
USB_SETUP_REQ *req)
|
||
|
{
|
||
|
uint8_t dev_addr;
|
||
|
|
||
|
if ((req->wIndex == 0) && (req->wLength == 0))
|
||
|
{
|
||
|
dev_addr = (uint8_t)(req->wValue) & 0x7F;
|
||
|
|
||
|
if (pdev->dev.device_status == USB_OTG_CONFIGURED)
|
||
|
{
|
||
|
USBD_CtlError(pdev , req);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
pdev->dev.device_address = dev_addr;
|
||
|
DCD_EP_SetAddress(pdev, dev_addr);
|
||
|
USBD_CtlSendStatus(pdev);
|
||
|
|
||
|
if (dev_addr != 0)
|
||
|
{
|
||
|
pdev->dev.device_status = USB_OTG_ADDRESSED;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
pdev->dev.device_status = USB_OTG_DEFAULT;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
USBD_CtlError(pdev , req);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief USBD_SetConfig
|
||
|
* Handle Set device configuration request
|
||
|
* @param pdev: device instance
|
||
|
* @param req: usb request
|
||
|
* @retval status
|
||
|
*/
|
||
|
static void USBD_SetConfig(USB_OTG_CORE_HANDLE *pdev,
|
||
|
USB_SETUP_REQ *req)
|
||
|
{
|
||
|
|
||
|
static uint8_t cfgidx;
|
||
|
|
||
|
cfgidx = (uint8_t)(req->wValue);
|
||
|
|
||
|
if (cfgidx > USBD_CFG_MAX_NUM )
|
||
|
{
|
||
|
USBD_CtlError(pdev , req);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
switch (pdev->dev.device_status)
|
||
|
{
|
||
|
case USB_OTG_ADDRESSED:
|
||
|
if (cfgidx)
|
||
|
{
|
||
|
pdev->dev.device_config = cfgidx;
|
||
|
pdev->dev.device_status = USB_OTG_CONFIGURED;
|
||
|
USBD_SetCfg(pdev , cfgidx);
|
||
|
USBD_CtlSendStatus(pdev);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
USBD_CtlSendStatus(pdev);
|
||
|
}
|
||
|
break;
|
||
|
|
||
|
case USB_OTG_CONFIGURED:
|
||
|
if (cfgidx == 0)
|
||
|
{
|
||
|
pdev->dev.device_status = USB_OTG_ADDRESSED;
|
||
|
pdev->dev.device_config = cfgidx;
|
||
|
USBD_ClrCfg(pdev , cfgidx);
|
||
|
USBD_CtlSendStatus(pdev);
|
||
|
|
||
|
}
|
||
|
else if (cfgidx != pdev->dev.device_config)
|
||
|
{
|
||
|
/* Clear old configuration */
|
||
|
USBD_ClrCfg(pdev , pdev->dev.device_config);
|
||
|
|
||
|
/* set new configuration */
|
||
|
pdev->dev.device_config = cfgidx;
|
||
|
USBD_SetCfg(pdev , cfgidx);
|
||
|
USBD_CtlSendStatus(pdev);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
USBD_CtlSendStatus(pdev);
|
||
|
}
|
||
|
break;
|
||
|
|
||
|
default:
|
||
|
USBD_CtlError(pdev , req);
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief USBD_GetConfig
|
||
|
* Handle Get device configuration request
|
||
|
* @param pdev: device instance
|
||
|
* @param req: usb request
|
||
|
* @retval status
|
||
|
*/
|
||
|
static void USBD_GetConfig(USB_OTG_CORE_HANDLE *pdev,
|
||
|
USB_SETUP_REQ *req)
|
||
|
{
|
||
|
|
||
|
if (req->wLength != 1)
|
||
|
{
|
||
|
USBD_CtlError(pdev , req);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
switch (pdev->dev.device_status )
|
||
|
{
|
||
|
case USB_OTG_ADDRESSED:
|
||
|
|
||
|
USBD_CtlSendData (pdev,
|
||
|
(uint8_t *)&USBD_default_cfg,
|
||
|
1);
|
||
|
break;
|
||
|
|
||
|
case USB_OTG_CONFIGURED:
|
||
|
|
||
|
USBD_CtlSendData (pdev,
|
||
|
&pdev->dev.device_config,
|
||
|
1);
|
||
|
break;
|
||
|
|
||
|
default:
|
||
|
USBD_CtlError(pdev , req);
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief USBD_GetStatus
|
||
|
* Handle Get Status request
|
||
|
* @param pdev: device instance
|
||
|
* @param req: usb request
|
||
|
* @retval status
|
||
|
*/
|
||
|
static void USBD_GetStatus(USB_OTG_CORE_HANDLE *pdev,
|
||
|
USB_SETUP_REQ *req)
|
||
|
{
|
||
|
|
||
|
|
||
|
switch (pdev->dev.device_status)
|
||
|
{
|
||
|
case USB_OTG_ADDRESSED:
|
||
|
case USB_OTG_CONFIGURED:
|
||
|
|
||
|
#ifdef USBD_SELF_POWERED
|
||
|
USBD_cfg_status = USB_CONFIG_SELF_POWERED;
|
||
|
#else
|
||
|
USBD_cfg_status = 0x00;
|
||
|
#endif
|
||
|
|
||
|
if (pdev->dev.DevRemoteWakeup)
|
||
|
{
|
||
|
USBD_cfg_status |= USB_CONFIG_REMOTE_WAKEUP;
|
||
|
}
|
||
|
|
||
|
USBD_CtlSendData (pdev,
|
||
|
(uint8_t *)&USBD_cfg_status,
|
||
|
2);
|
||
|
break;
|
||
|
|
||
|
default :
|
||
|
USBD_CtlError(pdev , req);
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
|
||
|
/**
|
||
|
* @brief USBD_SetFeature
|
||
|
* Handle Set device feature request
|
||
|
* @param pdev: device instance
|
||
|
* @param req: usb request
|
||
|
* @retval status
|
||
|
*/
|
||
|
static void USBD_SetFeature(USB_OTG_CORE_HANDLE *pdev,
|
||
|
USB_SETUP_REQ *req)
|
||
|
{
|
||
|
|
||
|
USB_OTG_DCTL_TypeDef dctl;
|
||
|
uint8_t test_mode = 0;
|
||
|
|
||
|
if (req->wValue == USB_FEATURE_REMOTE_WAKEUP)
|
||
|
{
|
||
|
pdev->dev.DevRemoteWakeup = 1;
|
||
|
pdev->dev.class_cb->Setup (pdev, req);
|
||
|
USBD_CtlSendStatus(pdev);
|
||
|
}
|
||
|
|
||
|
else if ((req->wValue == USB_FEATURE_TEST_MODE) &&
|
||
|
((req->wIndex & 0xFF) == 0))
|
||
|
{
|
||
|
dctl.d32 = USB_OTG_READ_REG32(&pdev->regs.DREGS->DCTL);
|
||
|
|
||
|
test_mode = req->wIndex >> 8;
|
||
|
switch (test_mode)
|
||
|
{
|
||
|
case 1: // TEST_J
|
||
|
dctl.b.tstctl = 1;
|
||
|
break;
|
||
|
|
||
|
case 2: // TEST_K
|
||
|
dctl.b.tstctl = 2;
|
||
|
break;
|
||
|
|
||
|
case 3: // TEST_SE0_NAK
|
||
|
dctl.b.tstctl = 3;
|
||
|
break;
|
||
|
|
||
|
case 4: // TEST_PACKET
|
||
|
dctl.b.tstctl = 4;
|
||
|
break;
|
||
|
|
||
|
case 5: // TEST_FORCE_ENABLE
|
||
|
dctl.b.tstctl = 5;
|
||
|
break;
|
||
|
}
|
||
|
SET_TEST_MODE = dctl;
|
||
|
pdev->dev.test_mode = 1;
|
||
|
USBD_CtlSendStatus(pdev);
|
||
|
}
|
||
|
|
||
|
}
|
||
|
|
||
|
|
||
|
/**
|
||
|
* @brief USBD_ClrFeature
|
||
|
* Handle clear device feature request
|
||
|
* @param pdev: device instance
|
||
|
* @param req: usb request
|
||
|
* @retval status
|
||
|
*/
|
||
|
static void USBD_ClrFeature(USB_OTG_CORE_HANDLE *pdev,
|
||
|
USB_SETUP_REQ *req)
|
||
|
{
|
||
|
switch (pdev->dev.device_status)
|
||
|
{
|
||
|
case USB_OTG_ADDRESSED:
|
||
|
case USB_OTG_CONFIGURED:
|
||
|
if (req->wValue == USB_FEATURE_REMOTE_WAKEUP)
|
||
|
{
|
||
|
pdev->dev.DevRemoteWakeup = 0;
|
||
|
pdev->dev.class_cb->Setup (pdev, req);
|
||
|
USBD_CtlSendStatus(pdev);
|
||
|
}
|
||
|
break;
|
||
|
|
||
|
default :
|
||
|
USBD_CtlError(pdev , req);
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief USBD_ParseSetupRequest
|
||
|
* Copy buffer into setup structure
|
||
|
* @param pdev: device instance
|
||
|
* @param req: usb request
|
||
|
* @retval None
|
||
|
*/
|
||
|
|
||
|
void USBD_ParseSetupRequest( USB_OTG_CORE_HANDLE *pdev,
|
||
|
USB_SETUP_REQ *req)
|
||
|
{
|
||
|
req->bmRequest = *(uint8_t *) (pdev->dev.setup_packet);
|
||
|
req->bRequest = *(uint8_t *) (pdev->dev.setup_packet + 1);
|
||
|
req->wValue = SWAPBYTE (pdev->dev.setup_packet + 2);
|
||
|
req->wIndex = SWAPBYTE (pdev->dev.setup_packet + 4);
|
||
|
req->wLength = SWAPBYTE (pdev->dev.setup_packet + 6);
|
||
|
|
||
|
pdev->dev.in_ep[0].ctl_data_len = req->wLength ;
|
||
|
pdev->dev.device_state = USB_OTG_EP0_SETUP;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief USBD_CtlError
|
||
|
* Handle USB low level Error
|
||
|
* @param pdev: device instance
|
||
|
* @param req: usb request
|
||
|
* @retval None
|
||
|
*/
|
||
|
|
||
|
void USBD_CtlError( USB_OTG_CORE_HANDLE *pdev,
|
||
|
USB_SETUP_REQ *req)
|
||
|
{
|
||
|
|
||
|
DCD_EP_Stall(pdev , 0x80);
|
||
|
DCD_EP_Stall(pdev , 0);
|
||
|
USB_OTG_EP0_OutStart(pdev);
|
||
|
}
|
||
|
|
||
|
|
||
|
/**
|
||
|
* @brief USBD_GetString
|
||
|
* Convert Ascii string into unicode one
|
||
|
* @param desc : descriptor buffer
|
||
|
* @param unicode : Formatted string buffer (unicode)
|
||
|
* @param len : descriptor length
|
||
|
* @retval None
|
||
|
*/
|
||
![]() |
void USBD_GetString(const char *desc, uint8_t *unicode, uint16_t *len)
|
||
![]() |
{
|
||
|
uint8_t idx = 0;
|
||
|
|
||
|
if (desc != NULL)
|
||
|
{
|
||
|
*len = USBD_GetLen(desc) * 2 + 2;
|
||
|
unicode[idx++] = *len;
|
||
|
unicode[idx++] = USB_DESC_TYPE_STRING;
|
||
|
|
||
|
while (*desc != NULL)
|
||
|
{
|
||
|
unicode[idx++] = *desc++;
|
||
|
unicode[idx++] = 0x00;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief USBD_GetLen
|
||
|
* return the string length
|
||
|
* @param buf : pointer to the ascii string buffer
|
||
|
* @retval string length
|
||
|
*/
|
||
![]() |
static uint8_t USBD_GetLen(const char *buf)
|
||
![]() |
{
|
||
|
uint8_t len = 0;
|
||
|
|
||
|
while (*buf != NULL)
|
||
|
{
|
||
|
len++;
|
||
|
buf++;
|
||
|
}
|
||
|
|
||
|
return len;
|
||
|
}
|
||
|
/**
|
||
|
* @}
|
||
|
*/
|
||
|
|
||
|
|
||
|
/**
|
||
|
* @}
|
||
|
*/
|
||
|
|
||
|
|
||
|
/**
|
||
|
* @}
|
||
|
*/
|
||
|
|
||
|
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|