127 lines
4.9 KiB
C
127 lines
4.9 KiB
C
/******************** (C) COPYRIGHT 2011 STMicroelectronics ********************
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* File Name : usb_sil.c
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* Author : MCD Application Team
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* Version : V3.3.0
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* Date : 21-March-2011
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* Description : Simplified Interface Layer for Global Initialization and
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* Endpoint Rea/Write operations.
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********************************************************************************
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* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
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* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
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* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
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* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
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* CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
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* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
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*******************************************************************************/
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/* Includes ------------------------------------------------------------------*/
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#include "usb_lib.h"
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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/* Extern variables ----------------------------------------------------------*/
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/* Private function prototypes -----------------------------------------------*/
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/* Private functions ---------------------------------------------------------*/
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/*******************************************************************************
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* Function Name : USB_SIL_Init
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* Description : Initialize the USB Device IP and the Endpoint 0.
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* Input : None.
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* Output : None.
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* Return : Status.
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*******************************************************************************/
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uint32_t USB_SIL_Init(void)
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{
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#ifndef STM32F10X_CL
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/* USB interrupts initialization */
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/* clear pending interrupts */
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_SetISTR(0);
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wInterrupt_Mask = IMR_MSK;
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/* set interrupts mask */
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_SetCNTR(wInterrupt_Mask);
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#else
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/* Perform OTG Device initialization procedure (including EP0 init) */
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OTG_DEV_Init();
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#endif /* STM32F10X_CL */
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return 0;
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}
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/*******************************************************************************
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* Function Name : USB_SIL_Write
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* Description : Write a buffer of data to a selected endpoint.
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* Input : - bEpAddr: The address of the non control endpoint.
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* - pBufferPointer: The pointer to the buffer of data to be written
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* to the endpoint.
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* - wBufferSize: Number of data to be written (in bytes).
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* Output : None.
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* Return : Status.
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*******************************************************************************/
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uint32_t USB_SIL_Write(uint8_t bEpAddr, uint8_t* pBufferPointer, uint32_t wBufferSize)
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{
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#ifndef STM32F10X_CL
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/* Use the memory interface function to write to the selected endpoint */
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UserToPMABufferCopy(pBufferPointer, GetEPTxAddr(bEpAddr & 0x7F), wBufferSize);
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/* Update the data length in the control register */
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SetEPTxCount((bEpAddr & 0x7F), wBufferSize);
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#else
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/* Use the PCD interface layer function to write to the selected endpoint */
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PCD_EP_Write (bEpAddr, pBufferPointer, wBufferSize);
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#endif /* STM32F10X_CL */
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return 0;
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}
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/*******************************************************************************
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* Function Name : USB_SIL_Read
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* Description : Write a buffer of data to a selected endpoint.
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* Input : - bEpAddr: The address of the non control endpoint.
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* - pBufferPointer: The pointer to which will be saved the
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* received data buffer.
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* Output : None.
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* Return : Number of received data (in Bytes).
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*******************************************************************************/
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uint32_t USB_SIL_Read(uint8_t bEpAddr, uint8_t* pBufferPointer)
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{
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uint32_t DataLength = 0;
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#ifndef STM32F10X_CL
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/* Get the number of received data on the selected Endpoint */
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DataLength = GetEPRxCount(bEpAddr & 0x7F);
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/* Use the memory interface function to write to the selected endpoint */
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PMAToUserBufferCopy(pBufferPointer, GetEPRxAddr(bEpAddr & 0x7F), DataLength);
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#else
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USB_OTG_EP *ep;
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/* Get the structure pointer of the selected Endpoint */
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ep = PCD_GetOutEP(bEpAddr);
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/* Get the number of received data */
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DataLength = ep->xfer_len;
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/* Use the PCD interface layer function to read the selected endpoint */
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PCD_EP_Read (bEpAddr, pBufferPointer, DataLength);
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#endif /* STM32F10X_CL */
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/* Return the number of received data */
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return DataLength;
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}
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/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/
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