/*******************************************************************************
* mvDmaStopAll - Stop any IDMA activity.
*
* DESCRIPTION:
* This function stops any DMA activity.
*
* INPUT:
* None.
*
* OUTPUT:
* None.
*
* RETURN:
* None.
*
*******************************************************************************/
MV_VOID mvDmaStopAll(MV_VOID)
{
MV_U32 dmaChanNum;
for(dmaChanNum = 0; dmaChanNum < MV_IDMA_MAX_CHAN; dmaChanNum++)
{
mvDmaCommandSet(dmaChanNum, MV_STOP);
}
return;
}
/*******************************************************************************
* mvDmaInit - Initialize IDMA engine
*
* DESCRIPTION:
* This function initialize IDMA unit.
* INPUT:
* None.
*
* OUTPUT:
* None.
*
* RETURN:
* MV_ERROR if setting fail.
*******************************************************************************/
MV_VOID mvDmaHalInit(MV_U32 dmaChanNum)
{
MV_U32 i;
/* Abort any DMA activity */
for (i = 0; i < dmaChanNum; i++) {
mvDmaCommandSet(i, MV_STOP);
#if defined(MV_CPU_LE) || defined(MV78XX0)
/* The following must be set */
mvDmaCtrlHighSet(i, (ICCHR_ENDIAN_LITTLE
#if defined(MV_CPU_LE)
| ICCHR_DESC_BYTE_SWAP_EN
#endif /* MV_CPU_LE */
));
#endif /* MV_CPU_LE || MV78XX0 */
}
MV_REG_WRITE(IDMA_CAUSE_REG, 0);
}
/*******************************************************************************
* mvDmaInit - Initialize IDMA engine
*
* DESCRIPTION:
* This function initialize IDMA unit. It set the default address decode
* windows of the unit.
*
* INPUT:
* None.
*
* OUTPUT:
* None.
*
* RETURN:
* MV_ERROR if setting fail.
*******************************************************************************/
MV_STATUS mvDmaInit (MV_VOID)
{
MV_U32 winNum, status;
MV_U32 dmaChanNum;
MV_DMA_DEC_WIN idmaWin;
MV_CPU_DEC_WIN cpuAddrDecWin;
MV_U32 winPrioIndex=0;
/* Initiate IDMA address decode */
/* First disable all address decode windows */
MV_REG_WRITE(IDMA_BASE_ADDR_ENABLE_REG, IBAER_ENABLE_MASK);
/* Go through all windows in user table until table terminator */
for (winNum = 0; ((dmaAddrDecPrioTap[winPrioIndex] != TBL_TERM) &&
(winNum < IDMA_MAX_ADDR_DEC_WIN)); )
{
/* first get attributes from CPU If */
status = mvCpuIfTargetWinGet(dmaAddrDecPrioTap[winPrioIndex],
&cpuAddrDecWin);
if(MV_NO_SUCH == status)
{
winPrioIndex++;
continue;
}
if (MV_OK != status)
{
mvOsPrintf("mvDmaInit: ERR. mvCpuIfTargetWinGet failed\n");
return MV_ERROR;
}
if (cpuAddrDecWin.enable == MV_TRUE)
{
idmaWin.addrWin.baseHigh = cpuAddrDecWin.addrWin.baseHigh;
idmaWin.addrWin.baseLow = cpuAddrDecWin.addrWin.baseLow;
idmaWin.addrWin.size = cpuAddrDecWin.addrWin.size;
idmaWin.enable = MV_TRUE;
idmaWin.target = dmaAddrDecPrioTap[winPrioIndex];
if(MV_OK != mvDmaWinSet(winNum, &idmaWin))
{
return MV_ERROR;
}
winNum++;
}
winPrioIndex++;
}
/* Abort any DMA activity */
for(dmaChanNum = 0; dmaChanNum < MV_IDMA_MAX_CHAN; dmaChanNum++)
{
mvDmaCommandSet(dmaChanNum, MV_STOP);
#if defined(MV_CPU_LE)
/* The following must be set */
mvDmaCtrlHighSet(dmaChanNum,
(ICCHR_ENDIAN_LITTLE | ICCHR_DESC_BYTE_SWAP_EN));
#endif
}
MV_REG_WRITE( IDMA_CAUSE_REG, 0);
return MV_OK;
}
