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usb_sil.c
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usb_sil.c
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/******************** (C) COPYRIGHT 2010 STMicroelectronics ********************
* File Name : usb_sil.c
* Author : MCD Application Team
* Version : V3.1.1
* Date : 04/07/2010
* Description : Simplified Interface Layer for Global Initialization and
* Endpoint Rea/Write operations.
********************************************************************************
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
* CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/
/* Includes ------------------------------------------------------------------*/
#include "usb_lib.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Extern variables ----------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/*******************************************************************************
* Function Name : USB_SIL_Init
* Description : Initialize the USB Device IP and the Endpoint 0.
* Input : None.
* Output : None.
* Return : Status.
*******************************************************************************/
uint32_t USB_SIL_Init(void)
{
#ifndef STM32F10X_CL
/* USB interrupts initialization */
/* clear pending interrupts */
_SetISTR(0);
wInterrupt_Mask = IMR_MSK;
/* set interrupts mask */
_SetCNTR(wInterrupt_Mask);
#else
/* Perform OTG Device initialization procedure (including EP0 init) */
OTG_DEV_Init();
#endif /* STM32F10X_CL */
return 0;
}
/*******************************************************************************
* Function Name : USB_SIL_Write
* Description : Write a buffer of data to a selected endpoint.
* Input : - bEpAddr: The address of the non control endpoint.
* - pBufferPointer: The pointer to the buffer of data to be written
* to the endpoint.
* - wBufferSize: Number of data to be written (in bytes).
* Output : None.
* Return : Status.
*******************************************************************************/
uint32_t USB_SIL_Write(uint8_t bEpAddr, uint8_t* pBufferPointer, uint32_t wBufferSize)
{
#ifndef STM32F10X_CL
/* Use the memory interface function to write to the selected endpoint */
UserToPMABufferCopy(pBufferPointer, GetEPTxAddr(bEpAddr & 0x7F), wBufferSize);
/* Update the data length in the control register */
SetEPTxCount((bEpAddr & 0x7F), wBufferSize);
#else
/* Use the PCD interface layer function to write to the selected endpoint */
OTGD_FS_PCD_EP_Write (bEpAddr, pBufferPointer, wBufferSize);
#endif /* STM32F10X_CL */
return 0;
}
/*******************************************************************************
* Function Name : USB_SIL_Read
* Description : Write a buffer of data to a selected endpoint.
* Input : - bEpAddr: The address of the non control endpoint.
* - pBufferPointer: The pointer to which will be saved the
* received data buffer.
* Output : None.
* Return : Number of received data (in Bytes).
*******************************************************************************/
uint32_t USB_SIL_Read(uint8_t bEpAddr, uint8_t* pBufferPointer)
{
uint32_t DataLength = 0;
#ifndef STM32F10X_CL
/* Get the number of received data on the selected Endpoint */
DataLength = GetEPRxCount(bEpAddr & 0x7F);
/* Use the memory interface function to write to the selected endpoint */
PMAToUserBufferCopy(pBufferPointer, GetEPRxAddr(bEpAddr & 0x7F), DataLength);
#else
USB_OTG_EP *ep;
/* Get the structure pointer of the selected Endpoint */
ep = OTGD_FS_PCD_GetOutEP(bEpAddr);
/* Get the number of received data */
DataLength = ep->xfer_len;
/* Use the PCD interface layer function to read the selected endpoint */
OTGD_FS_PCD_EP_Read (bEpAddr, pBufferPointer, DataLength);
#endif /* STM32F10X_CL */
/* Return the number of received data */
return DataLength;
}
/******************* (C) COPYRIGHT 2010 STMicroelectronics *****END OF FILE****/