usb_regs.c

STM32下做的usb转RS232程序

*******************************************************************************/
void ClearEP_CTR_RX(u8 bEpNum)
{
  _ClearEP_CTR_RX(bEpNum);
}
/*******************************************************************************
* Function Name  : ClearEP_CTR_TX
* Description    : Clear the CTR_TX bit.
* Input          : bEpNum: Endpoint Number. 
* Output         : None.
* Return         : None.
*******************************************************************************/
void ClearEP_CTR_TX(u8 bEpNum)
{
  _ClearEP_CTR_TX(bEpNum);
}
/*******************************************************************************
* Function Name  : ToggleDTOG_RX
* Description    : Toggle the DTOG_RX bit.
* Input          : bEpNum: Endpoint Number. 
* Output         : None.
* Return         : None.
*******************************************************************************/
void ToggleDTOG_RX(u8 bEpNum)
{
  _ToggleDTOG_RX(bEpNum);
}
/*******************************************************************************
* Function Name  : ToggleDTOG_TX
* Description    : Toggle the DTOG_TX bit.
* Input          : bEpNum: Endpoint Number. 
* Output         : None.
* Return         : None.
*******************************************************************************/
void ToggleDTOG_TX(u8 bEpNum)
{
  _ToggleDTOG_TX(bEpNum);
}
/*******************************************************************************
* Function Name  : ClearDTOG_RX.
* Description    : Clear the DTOG_RX bit.
* Input          : bEpNum: Endpoint Number. 
* Output         : None.
* Return         : None.
*******************************************************************************/
void ClearDTOG_RX(u8 bEpNum)
{
  _ClearDTOG_RX(bEpNum);
}
/*******************************************************************************
* Function Name  : ClearDTOG_TX.
* Description    : Clear the DTOG_TX bit.
* Input          : bEpNum: Endpoint Number. 
* Output         : None.
* Return         : None.
*******************************************************************************/
void ClearDTOG_TX(u8 bEpNum)
{
  _ClearDTOG_TX(bEpNum);
}
/*******************************************************************************
* Function Name  : SetEPAddress
* Description    : Set the endpoint address.
* Input          : bEpNum: Endpoint Number.
*                  bAddr: New endpoint address.
* Output         : None.
* Return         : None.
*******************************************************************************/
void SetEPAddress(u8 bEpNum, u8 bAddr)
{
  _SetEPAddress(bEpNum, bAddr);
}
/*******************************************************************************
* Function Name  : GetEPAddress
* Description    : Get the endpoint address.
* Input          : bEpNum: Endpoint Number. 
* Output         : None.
* Return         : Endpoint address.
*******************************************************************************/
u8 GetEPAddress(u8 bEpNum)
{
  return(_GetEPAddress(bEpNum));
}
/*******************************************************************************
* Function Name  : SetEPTxAddr
* Description    : Set the endpoint Tx buffer address.
* Input          : bEpNum: Endpoint Number.
*                  wAddr: new address. 
* Output         : None.
* Return         : None.
*******************************************************************************/
void SetEPTxAddr(u8 bEpNum, u16 wAddr)
{
  _SetEPTxAddr(bEpNum, wAddr);
}
/*******************************************************************************
* Function Name  : SetEPRxAddr
* Description    : Set the endpoint Rx buffer address.
* Input          : bEpNum: Endpoint Number.
*                  wAddr: new address.
* Output         : None.
* Return         : None.
*******************************************************************************/
void SetEPRxAddr(u8 bEpNum, u16 wAddr)
{
  _SetEPRxAddr(bEpNum, wAddr);
}
/*******************************************************************************
* Function Name  : GetEPTxAddr
* Description    : Returns the endpoint Tx buffer address.
* Input          : bEpNum: Endpoint Number. 
* Output         : None.
* Return         : Rx buffer address. 
*******************************************************************************/
u16 GetEPTxAddr(u8 bEpNum)
{
  return(_GetEPTxAddr(bEpNum));
}
/*******************************************************************************
* Function Name  : GetEPRxAddr.
* Description    : Returns the endpoint Rx buffer address.
* Input          : bEpNum: Endpoint Number. 
* Output         : None.
* Return         : Rx buffer address.
*******************************************************************************/
u16 GetEPRxAddr(u8 bEpNum)
{
  return(_GetEPRxAddr(bEpNum));
}
/*******************************************************************************
* Function Name  : SetEPTxCount.
* Description    : Set the Tx count.
* Input          : bEpNum: Endpoint Number.
*                  wCount: new count value.
* Output         : None.
* Return         : None.
*******************************************************************************/
void SetEPTxCount(u8 bEpNum, u16 wCount)
{
  _SetEPTxCount(bEpNum, wCount);
}
/*******************************************************************************
* Function Name  : SetEPCountRxReg.
* Description    : Set the Count Rx Register value.
* Input          : *pdwReg: point to the register.
*                  wCount: the new register value.
* Output         : None.
* Return         : None.
*******************************************************************************/
void SetEPCountRxReg(u32 *pdwReg, u16 wCount)
{
  _SetEPCountRxReg(dwReg, wCount);
}
/*******************************************************************************
* Function Name  : SetEPRxCount
* Description    : Set the Rx count.
* Input          : bEpNum: Endpoint Number. 
*                  wCount: the new count value.
* Output         : None.
* Return         : None.
*******************************************************************************/
void SetEPRxCount(u8 bEpNum, u16 wCount)
{
  _SetEPRxCount(bEpNum, wCount);
}
/*******************************************************************************
* Function Name  : GetEPTxCount
* Description    : Get the Tx count.
* Input          : bEpNum: Endpoint Number. 
* Output         : None
* Return         : Tx count value.
*******************************************************************************/
u16 GetEPTxCount(u8 bEpNum)
{
  return(_GetEPTxCount(bEpNum));
}
/*******************************************************************************
* Function Name  : GetEPRxCount
* Description    : Get the Rx count.
* Input          : bEpNum: Endpoint Number. 
* Output         : None.
* Return         : Rx count value.
*******************************************************************************/
u16 GetEPRxCount(u8 bEpNum)
{
  return(_GetEPRxCount(bEpNum));
}
/*******************************************************************************
* Function Name  : SetEPDblBuffAddr
* Description    : Set the addresses of the buffer 0 and 1.
* Input          : bEpNum: Endpoint Number.  
*                  wBuf0Addr: new address of buffer 0. 
*                  wBuf1Addr: new address of buffer 1.
* Output         : None.
* Return         : None.
*******************************************************************************/
void SetEPDblBuffAddr(u8 bEpNum, u16 wBuf0Addr, u16 wBuf1Addr)
{
  _SetEPDblBuffAddr(bEpNum, wBuf0Addr, wBuf1Addr);
}
/*******************************************************************************
* Function Name  : SetEPDblBuf0Addr
* Description    : Set the Buffer 1 address.
* Input          : bEpNum: Endpoint Number
*                  wBuf0Addr: new address.
* Output         : None.
* Return         : None.
*******************************************************************************/
void SetEPDblBuf0Addr(u8 bEpNum, u16 wBuf0Addr)
{
  _SetEPDblBuf0Addr(bEpNum, wBuf0Addr);
}
/*******************************************************************************
* Function Name  : SetEPDblBuf1Addr
* Description    : Set the Buffer 1 address.
* Input          : bEpNum: Endpoint Number
*                  wBuf1Addr: new address.
* Output         : None.
* Return         : None.
*******************************************************************************/
void SetEPDblBuf1Addr(u8 bEpNum, u16 wBuf1Addr)
{
  _SetEPDblBuf1Addr(bEpNum, wBuf1Addr);
}
/*******************************************************************************
* Function Name  : GetEPDblBuf0Addr
* Description    : Returns the address of the Buffer 0.
* Input          : bEpNum: Endpoint Number.
* Output         : None.
* Return         : None.
*******************************************************************************/
u16 GetEPDblBuf0Addr(u8 bEpNum)
{
  return(_GetEPDblBuf0Addr(bEpNum));
}
/*******************************************************************************
* Function Name  : GetEPDblBuf1Addr
* Description    : Returns the address of the Buffer 1.
* Input          : bEpNum: Endpoint Number.
* Output         : None.
* Return         : Address of the Buffer 1.
*******************************************************************************/
u16 GetEPDblBuf1Addr(u8 bEpNum)
{
  return(_GetEPDblBuf1Addr(bEpNum));
}
/*******************************************************************************
* Function Name  : SetEPDblBuffCount
* Description    : Set the number of bytes for a double Buffer 
*                  endpoint.
* Input          : bEpNum,bDir, wCount
* Output         : None.
* Return         : None.
*******************************************************************************/
void SetEPDblBuffCount(u8 bEpNum, u8 bDir, u16 wCount)
{
  _SetEPDblBuffCount(bEpNum, bDir, wCount);
}
/*******************************************************************************
* Function Name  : SetEPDblBuf0Count
* Description    : Set the number of bytes in the buffer 0 of a double Buffer 
*                  endpoint.
* Input          : bEpNum, bDir,  wCount
* Output         : None.
* Return         : None.
*******************************************************************************/
void SetEPDblBuf0Count(u8 bEpNum, u8 bDir, u16 wCount)
{
  _SetEPDblBuf0Count(bEpNum, bDir, wCount);
}
/*******************************************************************************
* Function Name  : SetEPDblBuf1Count
* Description    : Set the number of bytes in the buffer 0 of a double Buffer 
*                  endpoint.
* Input          : bEpNum,  bDir,  wCount
* Output         : None.
* Return         : None.
*******************************************************************************/
void SetEPDblBuf1Count(u8 bEpNum, u8 bDir, u16 wCount)
{
  _SetEPDblBuf1Count(bEpNum, bDir, wCount);
}
/*******************************************************************************
* Function Name  : GetEPDblBuf0Count
* Description    : Returns the number of byte received in the buffer 0 of a double
*                  Buffer endpoint.
* Input          : bEpNum: Endpoint Number.
* Output         : None.
* Return         : Endpoint Buffer 0 count
*******************************************************************************/
u16 GetEPDblBuf0Count(u8 bEpNum)
{
  return(_GetEPDblBuf0Count(bEpNum));
}
/*******************************************************************************
* Function Name  : GetEPDblBuf1Count
* Description    : Returns the number of data received in the buffer 1 of a double
*                  Buffer endpoint.
* Input          : bEpNum: Endpoint Number.
* Output         : None.
* Return         : Endpoint Buffer 1 count.
*******************************************************************************/
u16 GetEPDblBuf1Count(u8 bEpNum)
{
  return(_GetEPDblBuf1Count(bEpNum));
}
/*******************************************************************************
* Function Name  : GetEPDblBufDir
* Description    : gets direction of the double buffered endpoint
* Input          : bEpNum: Endpoint Number. 
* Output         : None.
* Return         : EP_DBUF_OUT, EP_DBUF_IN,
*                  EP_DBUF_ERR if the endpoint counter not yet programmed.
*******************************************************************************/
EP_DBUF_DIR GetEPDblBufDir(u8 bEpNum)
{
  if ((u16)(*_pEPRxCount(bEpNum) & 0xFC00) != 0)
    return(EP_DBUF_OUT);
  else if (((u16)(*_pEPTxCount(bEpNum)) & 0x03FF) != 0)
    return(EP_DBUF_IN);
  else
    return(EP_DBUF_ERR);
}
/*******************************************************************************
* Function Name  : FreeUserBuffer
* Description    : free buffer used from the application realizing it to the line
                   toggles bit SW_BUF in the double buffered endpoint register
* Input          : bEpNum, bDir
* Output         : None.
* Return         : None.
*******************************************************************************/
void FreeUserBuffer(u8 bEpNum, u8 bDir)
{
  if (bDir == EP_DBUF_OUT)
  { /* OUT double buffered endpoint */
    _ToggleDTOG_TX(bEpNum);
  }
  else if (bDir == EP_DBUF_IN)
  { /* IN double buffered endpoint */
    _ToggleDTOG_RX(bEpNum);
  }
}

/*******************************************************************************
* Function Name  : ToWord
* Description    : merge two byte in a word.
* Input          : bh: byte high, bl: bytes low.
* Output         : None.
* Return         : resulted word.
*******************************************************************************/
u16 ToWord(u8 bh, u8 bl)
{
  u16 wRet;
  wRet = (u16)bl | ((u16)bh << 8);
  return(wRet);
}
/*******************************************************************************
* Function Name  : ByteSwap
* Description    : Swap two byte in a word.
* Input          : wSwW: word to Swap.
* Output         : None.
* Return         : resulted word.
*******************************************************************************/
u16 ByteSwap(u16 wSwW)
{
  u8 bTemp;
  u16 wRet;
  bTemp = (u8)(wSwW & 0xff);
  wRet =  (wSwW >> 8) | ((u16)bTemp << 8);
  return(wRet);
}

/******************* (C) COPYRIGHT 2007 STMicroelectronics *****END OF FILE****/