/* * EZDSP5535_SDCARD_close() * * Close SD card interface */ Int16 EZDSP5535_SDCARD_close() { /* Deselect the SD card */ mmcStatus = MMC_deselectCard(mmcsdHandle, &mmcCardObj); if(mmcStatus != CSL_SOK) return(mmcStatus); /* Clear the MMCSD card response registers */ mmcStatus = MMC_clearResponse(mmcsdHandle); if(mmcStatus != CSL_SOK) return(mmcStatus); /* Send CMD0 to the SD card */ mmcStatus = MMC_sendCmd(mmcsdHandle, 0x00, 0x00, 0xFFFF); if(mmcStatus != CSL_SOK) return(mmcStatus); /* Close the MMCSD module */ mmcStatus = MMC_close(mmcsdHandle); if(mmcStatus != CSL_SOK) return(mmcStatus); return 0; }
/** * \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); }