217 lines
4.7 KiB
C
217 lines
4.7 KiB
C
/**
|
|
******************************************************************************
|
|
* @file usbd_ioreq.c
|
|
* @author MCD Application Team
|
|
* @brief This file provides the IO requests APIs for control endpoints.
|
|
******************************************************************************
|
|
* @attention
|
|
*
|
|
* <h2><center>© Copyright (c) 2015 STMicroelectronics.
|
|
* All rights reserved.</center></h2>
|
|
*
|
|
* This software component is licensed by ST under Ultimate Liberty license
|
|
* SLA0044, the "License"; You may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at:
|
|
* www.st.com/SLA0044
|
|
*
|
|
******************************************************************************
|
|
*/
|
|
|
|
/* Includes ------------------------------------------------------------------*/
|
|
#include "usbd_ioreq.h"
|
|
|
|
/** @addtogroup STM32_USB_DEVICE_LIBRARY
|
|
* @{
|
|
*/
|
|
|
|
|
|
/** @defgroup USBD_IOREQ
|
|
* @brief control I/O requests module
|
|
* @{
|
|
*/
|
|
|
|
/** @defgroup USBD_IOREQ_Private_TypesDefinitions
|
|
* @{
|
|
*/
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
|
|
/** @defgroup USBD_IOREQ_Private_Defines
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
|
|
/** @defgroup USBD_IOREQ_Private_Macros
|
|
* @{
|
|
*/
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
|
|
/** @defgroup USBD_IOREQ_Private_Variables
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
|
|
/** @defgroup USBD_IOREQ_Private_FunctionPrototypes
|
|
* @{
|
|
*/
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
|
|
/** @defgroup USBD_IOREQ_Private_Functions
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @brief USBD_CtlSendData
|
|
* send data on the ctl pipe
|
|
* @param pdev: device instance
|
|
* @param buff: pointer to data buffer
|
|
* @param len: length of data to be sent
|
|
* @retval status
|
|
*/
|
|
USBD_StatusTypeDef USBD_CtlSendData(USBD_HandleTypeDef *pdev,
|
|
uint8_t *pbuf, uint16_t len)
|
|
{
|
|
/* Set EP0 State */
|
|
pdev->ep0_state = USBD_EP0_DATA_IN;
|
|
pdev->ep_in[0].total_length = len;
|
|
pdev->ep_in[0].rem_length = len;
|
|
|
|
/* Start the transfer */
|
|
USBD_LL_Transmit(pdev, 0x00U, pbuf, len);
|
|
|
|
return USBD_OK;
|
|
}
|
|
|
|
/**
|
|
* @brief USBD_CtlContinueSendData
|
|
* continue sending data on the ctl pipe
|
|
* @param pdev: device instance
|
|
* @param buff: pointer to data buffer
|
|
* @param len: length of data to be sent
|
|
* @retval status
|
|
*/
|
|
USBD_StatusTypeDef USBD_CtlContinueSendData(USBD_HandleTypeDef *pdev,
|
|
uint8_t *pbuf, uint16_t len)
|
|
{
|
|
/* Start the next transfer */
|
|
USBD_LL_Transmit(pdev, 0x00U, pbuf, len);
|
|
|
|
return USBD_OK;
|
|
}
|
|
|
|
/**
|
|
* @brief USBD_CtlPrepareRx
|
|
* receive data on the ctl pipe
|
|
* @param pdev: device instance
|
|
* @param buff: pointer to data buffer
|
|
* @param len: length of data to be received
|
|
* @retval status
|
|
*/
|
|
USBD_StatusTypeDef USBD_CtlPrepareRx(USBD_HandleTypeDef *pdev,
|
|
uint8_t *pbuf, uint16_t len)
|
|
{
|
|
/* Set EP0 State */
|
|
pdev->ep0_state = USBD_EP0_DATA_OUT;
|
|
pdev->ep_out[0].total_length = len;
|
|
pdev->ep_out[0].rem_length = len;
|
|
|
|
/* Start the transfer */
|
|
USBD_LL_PrepareReceive(pdev, 0U, pbuf, len);
|
|
|
|
return USBD_OK;
|
|
}
|
|
|
|
/**
|
|
* @brief USBD_CtlContinueRx
|
|
* continue receive data on the ctl pipe
|
|
* @param pdev: device instance
|
|
* @param buff: pointer to data buffer
|
|
* @param len: length of data to be received
|
|
* @retval status
|
|
*/
|
|
USBD_StatusTypeDef USBD_CtlContinueRx(USBD_HandleTypeDef *pdev,
|
|
uint8_t *pbuf, uint16_t len)
|
|
{
|
|
USBD_LL_PrepareReceive(pdev, 0U, pbuf, len);
|
|
|
|
return USBD_OK;
|
|
}
|
|
|
|
/**
|
|
* @brief USBD_CtlSendStatus
|
|
* send zero lzngth packet on the ctl pipe
|
|
* @param pdev: device instance
|
|
* @retval status
|
|
*/
|
|
USBD_StatusTypeDef USBD_CtlSendStatus(USBD_HandleTypeDef *pdev)
|
|
{
|
|
/* Set EP0 State */
|
|
pdev->ep0_state = USBD_EP0_STATUS_IN;
|
|
|
|
/* Start the transfer */
|
|
USBD_LL_Transmit(pdev, 0x00U, NULL, 0U);
|
|
|
|
return USBD_OK;
|
|
}
|
|
|
|
/**
|
|
* @brief USBD_CtlReceiveStatus
|
|
* receive zero lzngth packet on the ctl pipe
|
|
* @param pdev: device instance
|
|
* @retval status
|
|
*/
|
|
USBD_StatusTypeDef USBD_CtlReceiveStatus(USBD_HandleTypeDef *pdev)
|
|
{
|
|
/* Set EP0 State */
|
|
pdev->ep0_state = USBD_EP0_STATUS_OUT;
|
|
|
|
/* Start the transfer */
|
|
USBD_LL_PrepareReceive(pdev, 0U, NULL, 0U);
|
|
|
|
return USBD_OK;
|
|
}
|
|
|
|
/**
|
|
* @brief USBD_GetRxCount
|
|
* returns the received data length
|
|
* @param pdev: device instance
|
|
* @param ep_addr: endpoint address
|
|
* @retval Rx Data blength
|
|
*/
|
|
uint32_t USBD_GetRxCount(USBD_HandleTypeDef *pdev, uint8_t ep_addr)
|
|
{
|
|
return USBD_LL_GetRxDataSize(pdev, ep_addr);
|
|
}
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|