CSL_Status configSdCard(CSL_MMCSDOpMode opMode) {
CSL_Status status;
Uint16 actCard;
Uint16 clockDiv;
Uint16 rca;
/* Get the clock divider value for the current CPU frequency */
clockDiv = computeClkRate();
/* Initialize MMCSD CSL module */
status = MMC_init();
status = SYS_setEBSR(CSL_EBSR_FIELD_SP0MODE, CSL_EBSR_SP0MODE_0);
status |= SYS_setEBSR(CSL_EBSR_FIELD_SP1MODE, CSL_EBSR_SP1MODE_0);
if (CSL_SOK != status) {
printf("SYS_setEBSR failed\n");
return (status);
}
/* Open MMCSD CSL module */
#ifdef C5515_EZDSP
mmcsdHandle = MMC_open(&pMmcsdContObj, CSL_MMCSD1_INST,
opMode, &status);
#else
mmcsdHandle = MMC_open(&pMmcsdContObj, CSL_MMCSD1_INST, opMode, &status);
#endif
if (mmcsdHandle == NULL) {
printf("MMC_open Failed\n");
return (status);
}
/* Configure the DMA in case of operating mode is set to DMA */
if (opMode == CSL_MMCSD_OPMODE_DMA) {
/* Initialize Dma */
status = DMA_init();
if (status != CSL_SOK) {
printf("DMA_init Failed!\n");
return (status);
}
/* Open Dma channel for MMCSD write */
dmaWrHandle = DMA_open(CSL_DMA_CHAN0, &dmaWrChanObj, &status);
if ((dmaWrHandle == NULL) || (status != CSL_SOK)) {
printf("DMA_open for MMCSD Write Failed!\n");
return (status);
}
/* Open Dma channel for MMCSD read */
dmaRdHandle = DMA_open(CSL_DMA_CHAN1, &dmaRdChanObj, &status);
if ((dmaRdHandle == NULL) || (status != CSL_SOK)) {
printf("DMA_open for MMCSD Read Failed!\n");
return (status);
}
/* Set the DMA handle for MMC read */
status = MMC_setDmaHandle(mmcsdHandle, dmaWrHandle, dmaRdHandle);
if (status != CSL_SOK) {
printf("API: MMC_setDmaHandle for MMCSD Failed\n");
return (status);
}
}
/* Reset the SD card */
status = MMC_sendGoIdle(mmcsdHandle);
if (status != CSL_SOK) {
printf("MMC_sendGoIdle Failed\n");
return (status);
}
/* Check for the card */
status = MMC_selectCard(mmcsdHandle, &mmcCardObj);
if ((status == CSL_ESYS_BADHANDLE) || (status == CSL_ESYS_INVPARAMS)) {
printf("MMC_selectCard Failed\n");
return (status);
}
/* Verify whether the SD card is detected or not */
if (mmcCardObj.cardType == CSL_SD_CARD) {
printf("SD Card detected\n");
/* Check if the card is high capacity card */
if (mmcsdHandle->cardObj->sdHcDetected == TRUE) {
printf("SD card is High Capacity Card\n");
printf("Memory Access will use Block Addressing\n");
} else {
printf("SD card is Standard Capacity Card\n");
printf("Memory Access will use Byte Addressing\n");
}
} else {
if (mmcCardObj.cardType == CSL_CARD_NONE) {
printf("No Card detected\n");
} else {
printf("SD Card not detected\n");
}
printf("Please Insert SD Card\n");
return (CSL_ESYS_FAIL);
}
/* Set the init clock */
status = MMC_sendOpCond(mmcsdHandle, 70);
if (status != CSL_SOK) {
printf("MMC_sendOpCond Failed\n");
return (status);
}
/* Send the card identification Data */
status = SD_sendAllCID(mmcsdHandle, &sdCardIdObj);
if (status != CSL_SOK) {
printf("SD_sendAllCID Failed\n");
return (status);
}
/* Set the Relative Card Address */
status = SD_sendRca(mmcsdHandle, &mmcCardObj, &rca);
if (status != CSL_SOK) {
printf("SD_sendRca Failed\n");
return (status);
}
/* Read the SD Card Specific Data */
status = SD_getCardCsd(mmcsdHandle, &sdCardCsdObj);
if (status != CSL_SOK) {
printf("SD_getCardCsd Failed\n");
return (status);
}
/* Set the card type in internal data structures */
status = MMC_setCardType(&mmcCardObj, CSL_SD_CARD);
if (status != CSL_SOK) {
printf("MMC_setCardType Failed\n");
return (status);
}
/* Set the card pointer in internal data structures */
status = MMC_setCardPtr(mmcsdHandle, &mmcCardObj);
if (status != CSL_SOK) {
printf("MMC_setCardPtr Failed\n");
return (status);
}
/* Get the number of cards */
status = MMC_getNumberOfCards(mmcsdHandle, &actCard);
if (status != CSL_SOK) {
printf("MMC_getNumberOfCards Failed\n");
return (status);
}
/* Set clock for read-write access */
status = MMC_sendOpCond(mmcsdHandle, clockDiv);
if (status != CSL_SOK) {
printf("MMC_sendOpCond Failed\n");
return (status);
}
/* Set Endian mode for read and write operations */
status = MMC_setEndianMode(mmcsdHandle, CSL_MMCSD_ENDIAN_LITTLE,
CSL_MMCSD_ENDIAN_LITTLE);
if (status != CSL_SOK) {
printf("MMC_setEndianMode Failed\n");
return (status);
}
/* Set block length for the memory card
* For high capacity cards setting the block length will have
* no effect
*/
status = MMC_setBlockLength(mmcsdHandle, CSL_MMCSD_BLOCK_LENGTH);
if (status != CSL_SOK) {
printf("MMC_setBlockLength Failed\n");
return (status);
}
return (status);
}
/**
* \brief Tests MMC card operation in POLLED mode
*
* This function configures the MMCSD module in POLLED mode and
* verifies the operation with MMC Card. Function returns failure
* incase of no MMC card is detected.
*
* \param none
*
* \return Test result
*/
CSL_Status CSL_mmcPollTest(void)
{
CSL_Status mmcStatus;
Uint16 looper;
Uint16 actCard;
Uint16 clockDiv;
callBckFun.isr[CSL_MMCSD_ISR_TXMT] = isr_txmt;
callBckFun.isr[CSL_MMCSD_ISR_RCV] = isr_rcv;
/* Initialize data buffers */
for(looper = 0; looper < (BUFFER_MAX_SIZE/2); looper++)
{
gMmcReadBuff[looper] = 0;
gMmcWriteBuff[looper] = looper;
}
/* Get the clock divider value for the current CPU frequency */
clockDiv = computeClkRate();
/* Initialize the CSL MMCSD module */
mmcStatus = MMC_init();
if(mmcStatus != CSL_SOK)
{
printf("API: MMC_init Failed\n");
return(mmcStatus);
}
/* Initialize the config parameter */
mmcConfig.mmcblen = CSL_MMCSD_BLOCK_LENGTH;
mmcConfig.mmcclk = 0x10 |CSL_MMCSD_MMCCLK_CLKEN_ENABLE;
mmcConfig.mmcctl = CSL_MMCSD_MMCCTL_DATEG_F_EDGE;
mmcConfig.mmcim = 0x0;
mmcConfig.mmcnblk = 0x1;
mmcConfig.mmctod = CSL_MMCSD_DATA_RW_TIMEOUT;
mmcConfig.mmctor = CSL_MMCSD_RESPONSE_TIMEOUT;
/* assign the value to setup native structure */
setupNative.blockLen = CSL_MMCSD_BLOCK_LENGTH;
setupNative.cdiv = 0x10;
setupNative.dat3EdgeDetection = CSL_MMCSD_MMCCTL_DATEG_F_EDGE;
setupNative.dataTimeout = CSL_MMCSD_DATA_RW_TIMEOUT;
setupNative.dmaEnable = 0x1;
setupNative.enableClkPin = 0x1;
setupNative.rspTimeout = CSL_MMCSD_RESPONSE_TIMEOUT;
/* Open the MMCSD module in POLLED mode */
#ifdef C5515_EZDSP
mmcsdHandle = MMC_open(&pMmcsdContObj, CSL_MMCSD1_INST,
CSL_MMCSD_OPMODE_POLLED, &mmcStatus);
#else
mmcsdHandle = MMC_open(&pMmcsdContObj, CSL_MMCSD0_INST,
CSL_MMCSD_OPMODE_POLLED, &mmcStatus);
#endif
if(mmcStatus != CSL_SOK)
{
printf("API: MMC_open Failed\n");
return(mmcStatus);
}
else
{
printf("API: MMC_open Successful\n");
}
/* Send CMD0 to the card */
mmcStatus = MMC_sendGoIdle(mmcsdHandle);
if(mmcStatus != CSL_SOK)
{
printf("API: MMC_sendGoIdle Failed\n");
return(mmcStatus);
}
/* Check for the card */
mmcStatus = MMC_selectCard(mmcsdHandle, &mmcCardObj);
if((mmcStatus == CSL_ESYS_BADHANDLE) ||
(mmcStatus == CSL_ESYS_INVPARAMS))
{
printf("API: MMC_selectCard Failed\n");
return(mmcStatus);
}
/* Verify whether the MMC card is detected or not */
if(mmcCardObj.cardType == CSL_MMC_CARD)
{
printf("MMC Card Detected!\n\n");
}
else
{
/* Check if No card is inserted */
if(mmcCardObj.cardType == CSL_CARD_NONE)
{
printf("No Card Detected!\n");
}
else
{
printf("MMC Card not Detected!\n");
}
printf("Please Insert MMC Card!!\n");
return(CSL_ESYS_FAIL);
}
/* Send the card identification Data */
mmcStatus = MMC_sendAllCID(mmcsdHandle, &mmcCardIdObj);
if(mmcStatus != CSL_SOK)
{
printf("API: MMC_sendAllCID Failed\n");
return(mmcStatus);
}
/* Set the Relative Card Address */
mmcStatus = MMC_setRca(mmcsdHandle, &mmcCardObj, 0x0001);
if(mmcStatus != CSL_SOK)
{
printf("API: MMC_setRca Failed\n");
return(CSL_ESYS_FAIL);
}
/* Read the MMC Card Specific Data */
mmcStatus = MMC_getCardCsd(mmcsdHandle, &mmcCardCsdObj);
if(mmcStatus != CSL_SOK)
{
printf("API: MMC_getCardCsd Failed\n");
return(mmcStatus);
}
/* Set the card type in internal data structures */
mmcStatus = MMC_setCardType(&mmcCardObj, CSL_MMC_CARD);
if(mmcStatus != CSL_SOK)
{
printf("API: MMC_setCardType Failed\n");
return(mmcStatus);
}
/* Set the card pointer in internal data structures */
mmcStatus = MMC_setCardPtr(mmcsdHandle, &mmcCardObj);
if(mmcStatus != CSL_SOK)
{
printf("API: MMC_setCardPtr Failed\n");
return(mmcStatus);
}
/* Get the number of cards */
mmcStatus = MMC_getNumberOfCards(mmcsdHandle, &actCard);
if(mmcStatus != CSL_SOK)
{
printf("API: MMC_getNumberOfCards Failed\n");
return(mmcStatus);
}
/* Set the MMC operating clock */
mmcStatus = MMC_sendOpCond(mmcsdHandle, clockDiv);
if(mmcStatus != CSL_SOK)
{
printf("API: MMC_sendOpCond Failed\n");
return(mmcStatus);
}
/* Set the endian mode */
mmcStatus = MMC_setEndianMode(mmcsdHandle, CSL_MMCSD_ENDIAN_LITTLE,
CSL_MMCSD_ENDIAN_LITTLE);
if(mmcStatus != CSL_SOK)
{
printf("API: MMC_setEndianMode Failed\n");
return(mmcStatus);
}
/* Set block length for the memory card
* For high capacity cards setting the block length will have
* no effect
*/
mmcStatus = MMC_setBlockLength(mmcsdHandle, CSL_MMCSD_BLOCK_LENGTH);
if(mmcStatus != CSL_SOK)
{
printf("API: MMC_setBlockLength Failed\n");
return(mmcStatus);
}
/* Write data to the MMC card */
mmcStatus = MMC_write(mmcsdHandle, CARD_START_ADDR, BUFFER_MAX_SIZE,
gMmcWriteBuff);
if(mmcStatus != CSL_SOK)
{
printf("API: MMC_write Failed\n");
return(mmcStatus);
}
else
{
printf("API: MMC_write Successful\n");
}
/* Read data from the MMC card */
mmcStatus = MMC_read(mmcsdHandle, CARD_START_ADDR, BUFFER_MAX_SIZE,
gMmcReadBuff);
if(mmcStatus != CSL_SOK)
{
printf("API: MMC_read Failed\n");
return(mmcStatus);
}
else
{
printf("API: MMC_read Successful\n");
}
/* Deselect the MMC card */
mmcStatus = MMC_deselectCard(mmcsdHandle, &mmcCardObj);
if(mmcStatus != CSL_SOK)
{
printf("API: MMC_deselectCard Failed\n");
return(mmcStatus);
}
/* Following APIs have nothing to do with the test sequence
They are called to verify their basic functionality */
/* Save the MMC status */
mmcStatus = MMC_saveStatus(mmcsdHandle);
if(mmcStatus != CSL_SOK)
{
printf("API: MMC_saveStatus Failed\n");
return(mmcStatus);
}
/* Read the MMC status */
MMC_getStatus(mmcsdHandle, 0xFFFF, &mmcStatus);
if(mmcStatus != CSL_SOK)
{
printf("API: MMC_getStatus Failed\n");
return(mmcStatus);
}
/* Configure the MMC module */
mmcStatus = MMC_config(mmcsdHandle, &mmcConfig);
if(mmcStatus != CSL_SOK)
{
printf("API: MMC_config Failed\n");
return(mmcStatus);
}
/* Read the configurations from the MMC module */
mmcStatus = MMC_getConfig(mmcsdHandle, &mmcConfig);
if(mmcStatus != CSL_SOK)
{
printf("API: MMC_getConfig Failed\n");
return(mmcStatus);
}
/* Setup the MMCSD native structure */
mmcStatus = MMC_setupNative(mmcsdHandle, &setupNative);
if(mmcStatus != CSL_SOK)
{
printf("API: MMC_setupNative Failed\n");
return(mmcStatus);
}
/* Read the Receive Data Ready Status bit */
MMC_drrdy(mmcsdHandle, &mmcStatus);
if(mmcStatus != CSL_SOK)
{
printf("API: MMC_drrdy Failed\n");
return(mmcStatus);
}
/* Read the Transmit Data Ready Status bit */
MMC_dxrdy(mmcsdHandle, &mmcStatus);
if(mmcStatus != CSL_SOK)
{
printf("API: MMC_dxrdy Failed\n");
return(mmcStatus);
}
/* Set the MMCSD Callback functions */
mmcStatus = MMC_setCallBack(mmcsdHandle, &callBckFun);
if(mmcStatus != CSL_SOK)
{
printf("API: MMC_setCallBack Failed\n");
return(mmcStatus);
}
/* Clear the MMCSD card response registers */
mmcStatus = MMC_clearResponse(mmcsdHandle);
if(mmcStatus != CSL_SOK)
{
printf("API: MMC_clearResponse Failed\n");
return(mmcStatus);
}
/* Configure the MMCSD Interrupts */
mmcStatus = MMC_intEnable(mmcsdHandle, 0x0000);
if(mmcStatus != CSL_SOK)
{
printf("API: MMC_intEnable Failed\n");
return(mmcStatus);
}
/* Enable the Data transfer done Interrupt */
mmcStatus = MMC_eventEnable(mmcsdHandle, CSL_MMCSD_EDATDNE_INTERRUPT);
if(mmcStatus != CSL_SOK)
{
printf("API: MMC_eventEnable Failed\n");
return(mmcStatus);
}
/* Disable the Data transfer done Interrupt */
mmcStatus = MMC_eventDisable(mmcsdHandle, CSL_MMCSD_EDATDNE_INTERRUPT);
if(mmcStatus != CSL_SOK)
{
printf("API: MMC_eventDisable Failed\n");
return(mmcStatus);
}
/* Close the MMCSD module */
mmcStatus = MMC_close(mmcsdHandle);
if(mmcStatus != CSL_SOK)
{
printf("API: MMC_close Failed\n");
return(mmcStatus);
}
else
{
printf("API: MMC_close Successful\n");
}
/* Compare the MMC read and write buffers */
for(looper = 0; looper < (BUFFER_MAX_SIZE/2); ++looper)
{
if(gMmcReadBuff[looper] != gMmcWriteBuff[looper])
{
printf("\nBuffer Miss Matched at Position %d\n",looper);
return(CSL_ESYS_FAIL);
}
}
printf("\nMMC Card Read & Write Buffer Matched\n");
return(CSL_SOK);
}
/*
* EZDSP5535_SDCARD_init( )
*
* Initalize SD card interface
*/
Int16 EZDSP5535_SDCARD_init()
{
Uint16 actCard;
Uint16 rca;
/* Initialize the CSL MMCSD module */
// mmcStatus = MMC_init(); // never failed
/* Open the MMCSD module in POLLED mode */
mmcsdHandle = MMC_open(&pMmcsdContObj, CSL_MMCSD0_INST,
CSL_MMCSD_OPMODE_POLLED, &mmcStatus);
if(mmcStatus != CSL_SOK) // open failed
{
return(mmcStatus);
}
/* Send CMD0 to the card */
mmcStatus = MMC_sendGoIdle(mmcsdHandle);
if(mmcStatus != CSL_SOK) // idle failed
{
return(mmcStatus);
}
/* Check for the card */
mmcStatus = MMC_selectCard(mmcsdHandle, &mmcCardObj);
if((mmcStatus == CSL_ESYS_BADHANDLE) ||
(mmcStatus == CSL_ESYS_INVPARAMS)) // select failed
{
return(mmcStatus);
}
/* Set the init clock */
mmcStatus = MMC_sendOpCond(mmcsdHandle, 70);
if(mmcStatus != CSL_SOK) // send op cond failed
{
return(mmcStatus);
}
/* Send the card identification Data */
mmcStatus = SD_sendAllCID(mmcsdHandle, &sdCardIdObj);
if(mmcStatus != CSL_SOK) // send all CID failed
{
return(mmcStatus);
}
/* Set the Relative Card Address */
mmcStatus = SD_sendRca(mmcsdHandle, &mmcCardObj, &rca);
if(mmcStatus != CSL_SOK)
{
return(mmcStatus);
}
/* Read the SD Card Specific Data */
mmcStatus = SD_getCardCsd(mmcsdHandle, &sdCardCsdObj);
if(mmcStatus != CSL_SOK)
{
return(mmcStatus);
}
/* Set bus width - Optional */
mmcStatus = SD_setBusWidth(mmcsdHandle, 1);
if(mmcStatus != CSL_SOK)
{
return(mmcStatus);
}
/* Disable SD card pull-up resistors - Optional */
mmcStatus = SD_configurePullup(mmcsdHandle, 0);
if(mmcStatus != CSL_SOK)
{
return(mmcStatus);
}
/* Set the card type in internal data structures */
mmcStatus = MMC_setCardType(&mmcCardObj, mmcCardObj.cardType);
if(mmcStatus != CSL_SOK)
{
return(mmcStatus);
}
/* Set the card pointer in internal data structures */
mmcStatus = MMC_setCardPtr(mmcsdHandle, &mmcCardObj);
if(mmcStatus != CSL_SOK)
{
return(mmcStatus);
}
/* Get the number of cards */
mmcStatus = MMC_getNumberOfCards(mmcsdHandle, &actCard);
if(mmcStatus != CSL_SOK)
{
return(mmcStatus);
}
/* Set clock for read-write access */
mmcStatus = MMC_sendOpCond(mmcsdHandle, 2);
if(mmcStatus != CSL_SOK)
{
return(mmcStatus);
}
/* Set block length for the memory card
* For high capacity cards setting the block length will have
* no effect
*/
mmcStatus = MMC_setBlockLength(mmcsdHandle, CSL_MMCSD_BLOCK_LENGTH);
if(mmcStatus != CSL_SOK)
return(mmcStatus);
return 0;
}