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/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
* File Name : usb_regs.c
* Author : MCD Application Team
* Version : V4.0.0
* Date : 09/29/2008
* Description : Interface functions to USB cell registers.
********************************************************************************
* 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 SOFTWARE 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 : SetCNTR.
* Description : Set the CNTR register value.
* Input : wRegValue: new register value.
* Output : None.
* Return : None.
*******************************************************************************/
void SetCNTR(u16 wRegValue)
{
_SetCNTR(wRegValue);
}
/*******************************************************************************
* Function Name : GetCNTR.
* Description : returns the CNTR register value.
* Input : None.
* Output : None.
* Return : CNTR register Value.
*******************************************************************************/
u16 GetCNTR(void)
{
return(_GetCNTR());
}
/*******************************************************************************
* Function Name : SetISTR.
* Description : Set the ISTR register value.
* Input : wRegValue: new register value.
* Output : None.
* Return : None.
*******************************************************************************/
void SetISTR(u16 wRegValue)
{
_SetISTR(wRegValue);
}
/*******************************************************************************
* Function Name : GetISTR.
* Description : Returns the ISTR register value.
* Input : None.
* Output : None.
* Return : ISTR register Value.
*******************************************************************************/
u16 GetISTR(void)
{
return(_GetISTR());
}
/*******************************************************************************
* Function Name : GetFNR.
* Description : Returns the FNR register value.
* Input : None.
* Output : None.
* Return : FNR register Value.
*******************************************************************************/
u16 GetFNR(void)
{
return(_GetFNR());
}
/*******************************************************************************
* Function Name : SetDADDR.
* Description : Set the DADDR register value.
* Input : wRegValue: new register value.
* Output : None.
* Return : None.
*******************************************************************************/
void SetDADDR(u16 wRegValue)
{
_SetDADDR(wRegValue);
}
/*******************************************************************************
* Function Name : GetDADDR.
* Description : Returns the DADDR register value.
* Input : None.
* Output : None.
* Return : DADDR register Value
*******************************************************************************/
u16 GetDADDR(void)
{
return(_GetDADDR());
}
/*******************************************************************************
* Function Name : SetBTABLE.
* Description : Set the BTABLE.
* Input : wRegValue: New register value.
* Output : None.
* Return : None.
*******************************************************************************/
void SetBTABLE(u16 wRegValue)
{
_SetBTABLE(wRegValue);
}
/*******************************************************************************
* Function Name : GetBTABLE.
* Description : Returns the BTABLE register value.
* Input : None.
* Output : None.
* Return : BTABLE address.
*******************************************************************************/
u16 GetBTABLE(void)
{
return(_GetBTABLE());
}
/*******************************************************************************
* Function Name : SetENDPOINT.
* Description : Setthe Endpoint register value.
* Input : bEpNum: Endpoint Number.
* wRegValue.
* Output : None.
* Return : None.
*******************************************************************************/
void SetENDPOINT(u8 bEpNum, u16 wRegValue)
{
_SetENDPOINT(bEpNum, wRegValue);
}
/*******************************************************************************
* Function Name : GetENDPOINT.
* Description : Return the Endpoint register value.
* Input : bEpNum: Endpoint Number.
* Output : None.
* Return : Endpoint register value.
*******************************************************************************/
u16 GetENDPOINT(u8 bEpNum)
{
return(_GetENDPOINT(bEpNum));
}
/*******************************************************************************
* Function Name : SetEPType.
* Description : sets the type in the endpoint register.
* Input : bEpNum: Endpoint Number.
* wType: type definition.
* Output : None.
* Return : None.
*******************************************************************************/
void SetEPType(u8 bEpNum, u16 wType)
{
_SetEPType(bEpNum, wType);
}
/*******************************************************************************
* Function Name : GetEPType.
* Description : Returns the endpoint type.
* Input : bEpNum: Endpoint Number.
* Output : None.
* Return : Endpoint Type.
*******************************************************************************/
u16 GetEPType(u8 bEpNum)
{
return(_GetEPType(bEpNum));
}
/*******************************************************************************
* Function Name : SetEPTxStatus.
* Description : Set the status of Tx endpoint.
* Input : bEpNum: Endpoint Number.
* wState: new state.
* Output : None.
* Return : None.
*******************************************************************************/
void SetEPTxStatus(u8 bEpNum, u16 wState)
{
_SetEPTxStatus(bEpNum, wState);
}
/*******************************************************************************
* Function Name : SetEPRxStatus.
* Description : Set the status of Rx endpoint.
* Input : bEpNum: Endpoint Number.
* wState: new state.
* Output : None.
* Return : None.
*******************************************************************************/
void SetEPRxStatus(u8 bEpNum, u16 wState)
{
_SetEPRxStatus(bEpNum, wState);
}
/*******************************************************************************
* Function Name : SetDouBleBuffEPStall.
* Description : sets the status for Double Buffer Endpoint to STALL.
* Input : bEpNum: Endpoint Number.
* bDir: Endpoint direction.
* Output : None.
* Return : None.
*******************************************************************************/
void SetDouBleBuffEPStall(u8 bEpNum, u8 bDir)
{
u16 Endpoint_DTOG_Status;
Endpoint_DTOG_Status = GetENDPOINT(bEpNum);
if (bDir == EP_DBUF_OUT)
{ /* OUT double buffered endpoint */
_SetENDPOINT(bEpNum, Endpoint_DTOG_Status & ~EPRX_DTOG1);
}
else if (bDir == EP_DBUF_IN)
{ /* IN double buffered endpoint */
_SetENDPOINT(bEpNum, Endpoint_DTOG_Status & ~EPTX_DTOG1);
}
}
/*******************************************************************************
* Function Name : GetEPTxStatus.
* Description : Returns the endpoint Tx status.
* Input : bEpNum: Endpoint Number.
* Output : None.
* Return : Endpoint TX Status.
*******************************************************************************/
u16 GetEPTxStatus(u8 bEpNum)
{
return(_GetEPTxStatus(bEpNum));
}
/*******************************************************************************
* Function Name : GetEPRxStatus.
* Description : Returns the endpoint Rx status.
* Input : bEpNum: Endpoint Number.
* Output : None.
* Return : Endpoint RX Status.
*******************************************************************************/
u16 GetEPRxStatus(u8 bEpNum)
{
return(_GetEPRxStatus(bEpNum));
}
/*******************************************************************************
* Function Name : SetEPTxValid.
* Description : Valid the endpoint Tx Status.
* Input : bEpNum: Endpoint Number.
* Output : None.
* Return : None.
*******************************************************************************/
void SetEPTxValid(u8 bEpNum)
{
_SetEPTxStatus(bEpNum, EP_TX_VALID);
}
/*******************************************************************************
* Function Name : SetEPRxValid.
* Description : Valid the endpoint Rx Status.
* Input : bEpNum: Endpoint Number.
* Output : None.
* Return : None.
*******************************************************************************/
void SetEPRxValid(u8 bEpNum)
{
_SetEPRxStatus(bEpNum, EP_RX_VALID);
}
/*******************************************************************************
* Function Name : SetEP_KIND.
* Description : Clear the EP_KIND bit.
* Input : bEpNum: Endpoint Number.
* Output : None.
* Return : None.
*******************************************************************************/
void SetEP_KIND(u8 bEpNum)
{
_SetEP_KIND(bEpNum);
}
/*******************************************************************************
* Function Name : ClearEP_KIND.
* Description : set the EP_KIND bit.
* Input : bEpNum: Endpoint Number.
* Output : None.
* Return : None.
*******************************************************************************/
void ClearEP_KIND(u8 bEpNum)
{
_ClearEP_KIND(bEpNum);
}
/*******************************************************************************
* Function Name : Clear_Status_Out.
* Description : Clear the Status Out of the related Endpoint.
* Input : bEpNum: Endpoint Number.
* Output : None.
* Return : None.
*******************************************************************************/
void Clear_Status_Out(u8 bEpNum)
{
_ClearEP_KIND(bEpNum);
}
/*******************************************************************************
* Function Name : Set_Status_Out.
* Description : Set the Status Out of the related Endpoint.
* Input : bEpNum: Endpoint Number.
* Output : None.
* Return : None.
*******************************************************************************/
void Set_Status_Out(u8 bEpNum)
{
_SetEP_KIND(bEpNum);
}
/*******************************************************************************
* Function Name : SetEPDoubleBuff.
* Description : Enable the double buffer feature for the endpoint.
* Input : bEpNum: Endpoint Number.
* Output : None.
* Return : None.
*******************************************************************************/
void SetEPDoubleBuff(u8 bEpNum)
{
_SetEP_KIND(bEpNum);
}
/*******************************************************************************
* Function Name : ClearEPDoubleBuff.
* Description : Disable the double buffer feature for the endpoint.
* Input : bEpNum: Endpoint Number.
* Output : None.
* Return : None.
*******************************************************************************/
void ClearEPDoubleBuff(u8 bEpNum)
{
_ClearEP_KIND(bEpNum);
}
/*******************************************************************************
* Function Name : GetTxStallStatus
* Description : Returns the Stall status of the Tx endpoint.
* Input : bEpNum: Endpoint Number.
* Output : None.
* Return : Tx Stall status.
*******************************************************************************/
u16 GetTxStallStatus(u8 bEpNum)
{
return(_GetTxStallStatus(bEpNum));
}
/*******************************************************************************
* Function Name : GetRxStallStatus
* Description : Returns the Stall status of the Rx endpoint.
* Input : bEpNum: Endpoint Number.
* Output : None.
* Return : Rx Stall status.
*******************************************************************************/
u16 GetRxStallStatus(u8 bEpNum)
{
return(_GetRxStallStatus(bEpNum));
}
/*******************************************************************************
* Function Name : ClearEP_CTR_RX
* Description : Clear the CTR_RX bit.
* Input : bEpNum: Endpoint Number.
* Output : None.
* Return : None.
*******************************************************************************/
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.
*******************************************************************************/
#ifdef STR7xx
void SetEPCountRxReg(u32 *pdwReg, u16 wCount)
{
_SetEPCountRxReg(dwReg, wCount);
}
#endif
/*******************************************************************************
* 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)
{
#ifdef STR7xx /*STR7xx family */
_SetEPDblBuffCount(bEpNum, bDir, wCount);
#endif
#ifdef STR91x /*STR91x family*/
SetEPDblBuf0Count(bEpNum, bDir, wCount);
SetEPDblBuf1Count(bEpNum, bDir, wCount);
#endif
}
/*******************************************************************************
* 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)
{
#ifdef STR7xx /*STR7xx family */
_SetEPDblBuf0Count(bEpNum, bDir, wCount);
#endif
#ifdef STR91x /*STR91x family*/
u32 BLsize = 0;
u32 Blocks;
if (bDir == EP_DBUF_IN)
{
/* IN double bufferd endpoint */
SetEPTxCount(bEpNum, wCount);
}
else if (bDir == EP_DBUF_OUT)
{
/* OUT double bufferd endpoint */
if (wCount < 64)
{
Blocks = wCount >> 1;
}
else
{
BLsize = 0x8000;
Blocks = wCount >> 6;
}
*_pEPBufCount(bEpNum) &= ~0x8000;
*_pEPBufCount(bEpNum) |= BLsize;
*_pEPBufCount(bEpNum) &= ~0x7C00;
*_pEPBufCount(bEpNum) |= Blocks << 10;
*_pEPBufCount(bEpNum) &= 0xFFFFFC00;
}
#endif
}
/*******************************************************************************
* 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)
{
#ifdef STR7xx /*STR7xx family */
_SetEPDblBuf1Count(bEpNum, bDir, wCount);
#endif
#ifdef STR91x /*STR91x family*/
if (bDir == EP_DBUF_IN)
/* IN double buffered endpoint */
{
*_pEPBufCount(bEpNum) &= 0x000FFFF;
*_pEPBufCount(bEpNum) |= (wCount << 16);
}
else if (bDir == EP_DBUF_OUT)
{
/* OUT double buffered endpoint */
_SetEPRxCount(bEpNum, wCount);
}
#endif
}
/*******************************************************************************
* 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));
}
#ifdef STR7xx /*STR7xx family */
/*******************************************************************************
* 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);
}
}
#endif
/*******************************************************************************
* 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);
}
/* DMA Functions only for STR91x */
#ifdef STR91x /*str91x family*/
/*******************************************************************************
* Function Name : SetDMAburstTxSize.
* Description : Configure the Burst Size for a Tx Endpoint.
* Input : DestBsize: Destination Burst Size.
* Output : None.
* Return : None.
*******************************************************************************/
void SetDMABurstTxSize(u8 DestBsize)
{
*DMABSIZE &= ~0xEF;
*DMABSIZE = (DestBsize << 4);
}
/*******************************************************************************
* Function Name : SetDMABurstRxSize.
* Description : Configure the Burst Size for a Rx Endpoint.
* Input : SrcBsize: Source Burst.
* Output : None.
* Return : None.
*******************************************************************************/
void SetDMABurstRxSize(u8 SrcBsize)
{
*DMABSIZE &= ~0x7;
*DMABSIZE = SrcBsize;
}
/*******************************************************************************
* Function Name : DMAUnlinkedModeTxConfig.
* Description : Configure a Tx Endpoint to trigger TX Unlinked DMA request.
* Note : Up to three endpoints could be configured to trigger DMA
request, an index[0:2] must be associated to an endpoint.
* Input : -bEpNum: endpoint number[0:9].
* -index: 0,1 or 2.
* Output : None.
* Return : None.
*******************************************************************************/
void DMAUnlinkedModeTxConfig(u8 bEpNum , u8 index)
{
*DMACR2 &= ~(0x0F << (4 * index));
*DMACR2 |= bEpNum << (4 * index);
}
/*******************************************************************************
* Function Name : DMAUnlinkedModeTxEnable.
* Description : Enable a Tx endpoint to trigger Tx DMA request.
* Input : -index :0,1 or 2 = index associated to endpoint in function
* "DMAUnlinkedModeTxConfig".
* Output : None.
* Return : None.
*******************************************************************************/
void DMAUnlinkedModeTxEnable(u8 index)
{
*DMACR3 &= ~0x01; /*DMA Tx linked mode disabled*/
*DMACR2 &= ~0x3000;
*DMACR2 |= (index + 1) << 12;
}
/*******************************************************************************
* Function Name : DMAUnlinkedModeTxDisable.
* Description : Enable a Tx endpoint to trigger Tx DMA request.
* Input : index :0,1 or 2 = index associated to endpoint in function
* "DMAUnlinkedModeTxConfig".
* Output : None.
* Return : None.
*******************************************************************************/
void DMAUnlinkedModeTxDisable(u8 index)
{
*DMACR2 &= ~0x3000;
}
/*******************************************************************************
* Function Name : DMAUnlinkedModeRxEnable.
* Description : Enable a Rx Endpoint to trigger Rx DMA.
* Input : bEpNum: endpoint number[0:9].
* Output : None.
* Return : None.
*******************************************************************************/
void DMAUnlinkedModeRxEnable(u8 bEpNum)
{
*DMACR3 &= ~0x80; /*DMA Rx linked mode disabled*/
*DMACR1 |= (0x1 << bEpNum);
}
/*******************************************************************************
* Function Name : DMAUnlinkedModeRxDisable.
* Description : Disable a Rx Endpoint to trigger Rx DMA.
* Input : bEpNum: endpoint number[0:9].
* Output : None.
* Return : None.
*******************************************************************************/
void DMAUnlinkedModeRxDisable(u8 bEpNum)
{
*DMACR1 &= ~(0x1 << bEpNum);
}
/*******************************************************************************
* Function Name : DMALinkedModeRxConfig.
* Description : Configure a Rx endpoint to trigger DMA linked request.
* Input : bEpNum: endpoint number[0:9].
* Output : None.
* Return : None.
*******************************************************************************/
void DMALinkedModeRxConfig(u8 bEpNum)
{
*DMACR3 &= ~0x1E00;
*DMACR3 |= bEpNum << 9;
}
/*******************************************************************************
* Function Name : DMALinkedModeTxConfig.
* Description : Configure a Tx endpoint to trigger DMA linked request.
* Input : bEpNum: endpoint number[0:9].
* Output : None.
* Return : None.
*******************************************************************************/
void DMALinkedModeTxConfig(u8 bEpNum)
{
*DMACR3 &= ~0x1E;
*DMACR3 |= bEpNum << 1;
}
/*******************************************************************************
* Function Name : DMALinkedModeRxEnable.
* Description : Enable the DMA Linked Rx mode.
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
void DMALinkedModeRxEnable(void)
{
*DMACR3 |= 0x100;
*DMACR3 |= 0x2000;
}
/*******************************************************************************
* Function Name : DMALinkedModeTxEnable.
* Description : Enable the DMA Linked Tx mode.
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
void DMALinkedModeTxEnable(void)
{
*DMACR3 |= 0x1;
*DMACR3 |= 0x20;
}
/*******************************************************************************
* Function Name : DMALinkedModeRxDisable.
* Description : Disable the DMA Linked Rx mode.
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
void DMALinkedModeRxDisable(void)
{
*DMACR3 &= ~0x100;
*DMACR3 &= ~0x2000;
}
/*******************************************************************************
* Function Name : DMALinkedModeTxDisable.
* Description : Disable the DMA Linked Tx mode.
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
void DMALinkedModeTxDisable(void)
{
*DMACR3 &= ~0x1;
*DMACR3 &= ~0x20;
}
/*******************************************************************************
* Function Name : USB_DMASynchEnable.
* Description : Enable the Synchronization Logic.
* Input : TRUE or FALSE.
* Output : None.
* Return : None.
*******************************************************************************/
void DMASynchEnable(void)
{
*DMACR3 |= 0x40;
}
/*******************************************************************************
* Function Name : USB_DMASynchDisable.
* Description : Disable the Synchronization Logic.
* Input : TRUE or FALSE.
* Output : None.
* Return : None.
*******************************************************************************/
void DMASynchDisable(void)
{
*DMACR3 &= ~0x40;
}
/*******************************************************************************
* Function Name : SetDMALLITxLength.
* Description : Set the DMA LLI Tx length.
* Input : length.
* Output : None.
* Return : None.
*******************************************************************************/
void SetDMALLITxLength(u8 length)
{
*DMALLI &= ~0xFF;
*DMALLI |= length;
}
/*******************************************************************************
* Function Name : SetDMALLIRxLength.
* Description : Set the DMA LLI Rx length.
* Input : length.
* Output : None.
* Return : None.
*******************************************************************************/
void SetDMALLIRxLength(u8 length )
{
*DMALLI &= ~0xFF00;
*DMALLI |= length << 8;
}
/*******************************************************************************
* Function Name : SetDMALLIRxPacketNum.
* Description : Set the LLI_RX_NPACKETS field in USB_DMABSIZE register.
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
void SetDMALLIRxPacketNum(u8 PacketNum)
{
*DMABSIZE &= 0xFF;
*DMABSIZE |= (PacketNum << 8);
}
/*******************************************************************************
* Function Name : GetDMALLIPacketNum.
* Description : gets the LLI_RX_NPACKETS field value.
* Input : None.
* Output : None.
* Return : LLI_RX_NPACKETS field value.
*******************************************************************************/
u8 GetDMALLIRxPacketNum(void)
{
return((u8)(*DMABSIZE & 0xFF00) >> 8);
}
#endif
/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/