/**
* Reset MCI HW interface and disable it.
* \param keepSettings Keep old register settings, including
* _MR, _SDCR, _DTOR, _CSTOR, _DMA and _CFG.
*/
void MCI_Reset(Mcid *pMci, uint8_t keepSettings)
{
Hsmci *pMciHw = pMci->pMciHw;
uint32_t mciDis;
assert(pMci);
assert(pMci->pMciHw);
pmc_enable_periph_clk(pMci->mciId);
mciDis = pmc_is_periph_clk_enabled( pMci->mciId );
if (keepSettings)
{
uint32_t mr, sdcr, dtor, cstor;
uint32_t cfg;
mr = pMciHw->HSMCI_MR;
sdcr = pMciHw->HSMCI_SDCR;
dtor = pMciHw->HSMCI_DTOR;
cstor = pMciHw->HSMCI_CSTOR;
cfg = pMciHw->HSMCI_CFG;
MCI_RESET(pMciHw);
MCI_Disable(pMciHw);
pMciHw->HSMCI_MR = mr;
pMciHw->HSMCI_SDCR = sdcr;
pMciHw->HSMCI_DTOR = dtor;
pMciHw->HSMCI_CSTOR = cstor;
pMciHw->HSMCI_CFG = cfg;
}
else
{
MCI_RESET(pMciHw);
MCI_Disable(pMciHw);
}
if ( mciDis )
{
// pmc_disable_periph_clk( pMci->mciId ) ;
}
}
/**
* Reset MCI HW interface and disable it.
* \param keepSettings Keep old register settings, including
* _MR, _SDCR, _DTOR, _CSTOR, _DMA and _CFG.
*/
void MCI_Reset(Mcid *pMci, uint8_t keepSettings)
{
Hsmci *pMciHw = pMci->pMciHw;
uint8_t mciDis;
assert(pMci);
assert(pMci->pMciHw);
PMC_EnablePeripheral(pMci->mciId);
mciDis = PMC_IsPeriphEnabled(pMci->mciId);
if (keepSettings)
{
uint32_t mr, sdcr, dtor, cstor;
uint32_t cfg;
mr = pMciHw->HSMCI_MR;
sdcr = pMciHw->HSMCI_SDCR;
dtor = pMciHw->HSMCI_DTOR;
cstor = pMciHw->HSMCI_CSTOR;
cfg = pMciHw->HSMCI_CFG;
MCI_RESET(pMciHw);
MCI_Disable(pMciHw);
pMciHw->HSMCI_MR = mr;
pMciHw->HSMCI_SDCR = sdcr;
pMciHw->HSMCI_DTOR = dtor;
pMciHw->HSMCI_CSTOR = cstor;
pMciHw->HSMCI_CFG = cfg;
}
else
{
MCI_RESET(pMciHw);
MCI_Disable(pMciHw);
}
if ( mciDis )
{
PMC_DisablePeripheral( pMci->mciId ) ;
}
}
/**
* Initialize MCI driver.
*/
void MCID_Init(sMcid *pMcid,
Hsmci *pMci, uint8_t bID, uint32_t dwMck,
sXdmad *pXdmad,
uint8_t bPolling)
{
uint16_t clkDiv;
assert(pMcid);
assert(pMci);
/* Initialize driver struct */
pMcid->pMciHw = pMci;
pMcid->pCmd = NULL;
pMcid->pXdmad = pXdmad;
pMcid->dwDmaCh = XDMAD_ALLOC_FAILED;
pMcid->dwXfrNdx = 0;
pMcid->dwMck = dwMck;
pMcid->bID = bID;
pMcid->bPolling = bPolling;
pMcid->bState = MCID_IDLE;
_PeripheralEnable( bID );
MCI_RESET( pMci );
MCI_DISABLE ( pMci );
HSMCI_DisableIt( pMci, 0xFFFFFFFF );
HSMCI_ConfigureDataTO( pMci, HSMCI_DTOR_DTOCYC(0xFF)
|HSMCI_DTOR_DTOMUL_1048576 );
HSMCI_ConfigureCompletionTO( pMci , HSMCI_CSTOR_CSTOCYC(0xFF)
|HSMCI_CSTOR_CSTOMUL_1048576 );
/* Set the Mode Register: 400KHz */
clkDiv = (dwMck / (MCI_INITIAL_SPEED << 1)) - 1;
HSMCI_ConfigureMode( pMci, (clkDiv | HSMCI_MR_PWSDIV(0x7)) );
HSMCI_Enable( pMci );
HSMCI_Configure( pMci, HSMCI_CFG_FIFOMODE | HSMCI_CFG_FERRCTRL );
/* Enable DMA */
HSMCI_EnableDma( pMci, 1 );
//_PeripheralDisable( bID );
}
