diff options
Diffstat (limited to 'FreeRTOS-Labs/Source/FreeRTOS-Plus-FAT/portable/Zynq/ff_sddisk.c')
| -rw-r--r-- | FreeRTOS-Labs/Source/FreeRTOS-Plus-FAT/portable/Zynq/ff_sddisk.c | 894 |
1 files changed, 894 insertions, 0 deletions
diff --git a/FreeRTOS-Labs/Source/FreeRTOS-Plus-FAT/portable/Zynq/ff_sddisk.c b/FreeRTOS-Labs/Source/FreeRTOS-Plus-FAT/portable/Zynq/ff_sddisk.c new file mode 100644 index 000000000..f60913f43 --- /dev/null +++ b/FreeRTOS-Labs/Source/FreeRTOS-Plus-FAT/portable/Zynq/ff_sddisk.c @@ -0,0 +1,894 @@ +/*
+ * FreeRTOS+FAT build 191128 - Note: FreeRTOS+FAT is still in the lab!
+ * Copyright (C) 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * Authors include James Walmsley, Hein Tibosch and Richard Barry
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * https://www.FreeRTOS.org
+ *
+ */
+
+/* Standard includes. */
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+#include <stdio.h>
+
+/* Xilinx library includes. */
+#include "xparameters.h"
+#include "xil_types.h"
+#include "xsdps.h" /* SD device driver */
+#include "xsdps_info.h" /* SD info */
+
+/* FreeRTOS includes. */
+#include "FreeRTOS.h"
+#include "task.h"
+#include "semphr.h"
+#include "portmacro.h"
+
+/* FreeRTOS+FAT includes. */
+#include "ff_headers.h"
+#include "ff_sddisk.h"
+#include "ff_sys.h"
+
+#if( ffconfigSDIO_DRIVER_USES_INTERRUPT != 0 )
+ #include "xil_exception.h"
+ #include "xscugic_hw.h"
+#endif /* ffconfigSDIO_DRIVER_USES_INTERRUPT */
+
+#include "uncached_memory.h"
+
+#define sdSIGNATURE 0x41404342
+
+#ifndef ARRAY_SIZE
+ #define ARRAY_SIZE(x) (int) (sizeof(x)/sizeof(x)[0])
+#endif
+
+#define STA_NOINIT 0x01 /* Drive not initialized */
+#define STA_NODISK 0x02 /* No medium in the drive */
+#define STA_PROTECT 0x04 /* Write protected */
+
+#define SD_DEVICE_ID XPAR_XSDPS_0_DEVICE_ID
+#define HIGH_SPEED_SUPPORT 0x01
+#define WIDTH_4_BIT_SUPPORT 0x4
+#define SD_CLK_12_MHZ 12000000
+#define SD_CLK_25_MHZ 25000000
+#define SD_CLK_26_MHZ 26000000
+#define SD_CLK_52_MHZ 52000000
+#define EXT_CSD_DEVICE_TYPE_BYTE 196
+#define EXT_CSD_4_BIT_WIDTH_BYTE 183
+#define EXT_CSD_HIGH_SPEED_BYTE 185
+#define EXT_CSD_DEVICE_TYPE_HIGH_SPEED 0x3
+
+#define HUNDRED_64_BIT 100ULL
+#define BYTES_PER_MB ( 1024ull * 1024ull )
+#define SECTORS_PER_MB ( BYTES_PER_MB / 512ull )
+
+#define XSDPS_INTR_NORMAL_ENABLE ( XSDPS_INTR_CC_MASK | XSDPS_INTR_TC_MASK | \
+ XSDPS_INTR_DMA_MASK | XSDPS_INTR_CARD_INSRT_MASK | XSDPS_INTR_CARD_REM_MASK | \
+ XSDPS_INTR_ERR_MASK )
+
+/* Two defines used to set or clear the interrupt */
+#define INTC_BASE_ADDR XPAR_SCUGIC_CPU_BASEADDR
+#define INTC_DIST_BASE_ADDR XPAR_SCUGIC_DIST_BASEADDR
+
+/* Interupt numbers for SDIO units 0 and 1: */
+#define SCUGIC_SDIO_0_INTR 0x38
+#define SCUGIC_SDIO_1_INTR 0x4F
+
+/* Define a timeout on data transfers for SDIO: */
+#define sdWAIT_INT_TIME_OUT_MS 5000UL
+
+/* Define a short timeout, used during card-detection only (CMD1): */
+#define sdQUICK_WAIT_INT_TIME_OUT_MS 1000UL
+
+/* XSdPs xSDCardInstance; */
+static XSdPs *pxSDCardInstance;
+
+static int sd_disk_status = STA_NOINIT; /* Disk status */
+const int drive_nr = 0;
+static SemaphoreHandle_t xPlusFATMutex;
+#if( ffconfigSDIO_DRIVER_USES_INTERRUPT != 0 )
+ /* Create a semaphore for each of the two memory-card slots. */
+ static SemaphoreHandle_t xSDSemaphores[ 2 ];
+#endif
+
+static int vSDMMC_Init( int iDriveNumber );
+static int vSDMMC_Status( int iDriveNumber );
+
+#if( ffconfigSDIO_DRIVER_USES_INTERRUPT != 0 )
+ static void vInstallInterrupt( void );
+#endif
+
+struct xCACHE_MEMORY_INFO
+{
+ /* Reserve 'uncached' memory for caching sectors, will be passed to the +FAT library. */
+ uint8_t pucCacheMemory[ 0x10000 ];
+ /* Reserve 'uncached' memory for i/o to the SD-card. */
+ uint8_t pucHelpMemory[ 0x40000 ];
+ XSdPs xSDCardInstance;
+};
+
+struct xCACHE_STATS
+{
+ uint32_t xMemcpyReadCount;
+ uint32_t xMemcpyWriteCount;
+ uint32_t xPassReadCount;
+ uint32_t xPassWriteCount;
+ uint32_t xFailReadCount;
+ uint32_t xFailWriteCount;
+};
+
+struct xCACHE_STATS xCacheStats;
+struct xCACHE_MEMORY_INFO *pxCacheMem = NULL;
+
+static const uint8_t *prvStoreSDCardData( const uint8_t *pucBuffer, uint32_t ulByteCount );
+static uint8_t *prvReadSDCardData( uint8_t *pucBuffer, uint32_t ulByteCount );
+
+#if( ffconfigSDIO_DRIVER_USES_INTERRUPT != 0 )
+ void XSdPs_IntrHandler(void *XSdPsPtr);
+#endif /* ffconfigSDIO_DRIVER_USES_INTERRUPT */
+
+static int32_t prvFFRead( uint8_t *pucBuffer, uint32_t ulSectorNumber, uint32_t ulSectorCount, FF_Disk_t *pxDisk )
+{
+int32_t lReturnCode;
+int iResult;
+uint8_t *pucReadBuffer;
+
+ if( ( pxDisk != NULL ) && /*_RB_ Could this be changed to an assert? */
+ ( pxDisk->ulSignature == sdSIGNATURE ) &&
+ ( pxDisk->xStatus.bIsInitialised != pdFALSE ) &&
+ ( ulSectorNumber < pxDisk->ulNumberOfSectors ) &&
+ ( pxDisk->ulNumberOfSectors - ulSectorNumber ) >= ulSectorCount )
+ {
+ iResult = vSDMMC_Status( drive_nr );
+ if( ( iResult & STA_NODISK ) != 0 )
+ {
+ lReturnCode = FF_ERR_DRIVER_NOMEDIUM | FF_ERRFLAG;
+ FF_PRINTF( "prvFFRead: NOMEDIUM\n" );
+ }
+ else if( ( iResult & STA_NOINIT ) != 0 )
+ {
+ lReturnCode = FF_ERR_IOMAN_OUT_OF_BOUNDS_READ | FF_ERRFLAG;
+ FF_PRINTF( "prvFFRead: NOINIT\n" );
+ }
+ else if( ulSectorCount == 0ul )
+ {
+ lReturnCode = 0;
+ }
+ else
+ {
+ /* Convert LBA to byte address if needed */
+ if( pxSDCardInstance->HCS == 0 )
+ {
+ ulSectorNumber *= XSDPS_BLK_SIZE_512_MASK;
+ }
+
+ pucReadBuffer = prvReadSDCardData( pucBuffer, 512UL * ulSectorCount );
+
+ if( ucIsCachedMemory( pucReadBuffer ) != pdFALSE )
+ {
+ xCacheStats.xFailReadCount++;
+ }
+
+ iResult = XSdPs_ReadPolled( pxSDCardInstance, ulSectorNumber, ulSectorCount, pucReadBuffer );
+ if( pucBuffer != pucReadBuffer )
+ {
+ xCacheStats.xMemcpyReadCount++;
+ memcpy( pucBuffer, pucReadBuffer, 512 * ulSectorCount );
+ }
+ else
+ {
+ xCacheStats.xPassReadCount++;
+ }
+ if( iResult == XST_SUCCESS )
+ {
+ lReturnCode = 0l;
+ }
+ else
+ {
+ lReturnCode = FF_ERR_IOMAN_OUT_OF_BOUNDS_READ | FF_ERRFLAG;
+ }
+ }
+ }
+ else
+ {
+ memset( ( void *) pucBuffer, '\0', ulSectorCount * 512 );
+
+ if( pxDisk->xStatus.bIsInitialised != pdFALSE )
+ {
+ FF_PRINTF( "prvFFRead: warning: %lu + %lu > %lu\n", ulSectorNumber, ulSectorCount, pxDisk->ulNumberOfSectors );
+ }
+
+ lReturnCode = FF_ERR_IOMAN_OUT_OF_BOUNDS_READ | FF_ERRFLAG;
+ }
+
+ return lReturnCode;
+}
+/*-----------------------------------------------------------*/
+
+static int32_t prvFFWrite( uint8_t *pucBuffer, uint32_t ulSectorNumber, uint32_t ulSectorCount, FF_Disk_t *pxDisk )
+{
+int32_t lReturnCode;
+
+ if( ( pxDisk != NULL ) &&
+ ( pxDisk->ulSignature == sdSIGNATURE ) &&
+ ( pxDisk->xStatus.bIsInitialised != pdFALSE ) &&
+ ( ulSectorNumber < pxDisk->ulNumberOfSectors ) &&
+ ( ( pxDisk->ulNumberOfSectors - ulSectorNumber ) >= ulSectorCount ) )
+ {
+ int iResult;
+ iResult = vSDMMC_Status(drive_nr);
+
+ if( ( iResult & STA_NODISK ) != 0 )
+ {
+ lReturnCode = FF_ERR_DRIVER_NOMEDIUM | FF_ERRFLAG;
+ FF_PRINTF( "prvFFWrite: NOMEDIUM\n" );
+ }
+ else if( ( iResult & STA_NOINIT ) != 0 )
+ {
+ lReturnCode = FF_ERR_IOMAN_OUT_OF_BOUNDS_WRITE | FF_ERRFLAG;
+ FF_PRINTF( "prvFFWrite: NOINIT\n" );
+ }
+ else
+ {
+ if( ulSectorCount == 0ul )
+ {
+ lReturnCode = 0l;
+ }
+ else
+ {
+ /* Convert LBA to byte address if needed */
+ if (!(pxSDCardInstance->HCS)) ulSectorNumber *= XSDPS_BLK_SIZE_512_MASK;
+
+ pucBuffer = ( uint8_t * )prvStoreSDCardData( pucBuffer, 512UL * ulSectorCount );
+
+ if( ucIsCachedMemory( pucBuffer ) != pdFALSE )
+ {
+ xCacheStats.xFailWriteCount++;
+ }
+
+ iResult = XSdPs_WritePolled( pxSDCardInstance, ulSectorNumber, ulSectorCount, pucBuffer );
+
+ if( iResult == XST_SUCCESS )
+ {
+ lReturnCode = 0;
+ }
+ else
+ {
+ FF_PRINTF( "prvFFWrite[%d]: at 0x%X count %ld : %d\n",
+ (int)drive_nr, (unsigned)ulSectorNumber, ulSectorCount, iResult );
+ lReturnCode = FF_ERR_IOMAN_OUT_OF_BOUNDS_WRITE | FF_ERRFLAG;
+ }
+ }
+ }
+ }
+ else
+ {
+ lReturnCode = FF_ERR_IOMAN_OUT_OF_BOUNDS_WRITE | FF_ERRFLAG;
+ if( pxDisk->xStatus.bIsInitialised )
+ {
+ FF_PRINTF( "prvFFWrite::read: warning: %lu + %lu > %lu\n",
+ ulSectorNumber, ulSectorCount, pxDisk->ulNumberOfSectors );
+ }
+ }
+
+ return lReturnCode;
+}
+/*-----------------------------------------------------------*/
+
+void FF_SDDiskFlush( FF_Disk_t *pxDisk )
+{
+ if( ( pxDisk != NULL ) &&
+ ( pxDisk->xStatus.bIsInitialised != pdFALSE ) &&
+ ( pxDisk->pxIOManager != NULL ) )
+ {
+ FF_FlushCache( pxDisk->pxIOManager );
+ }
+}
+/*-----------------------------------------------------------*/
+
+static const uint8_t *prvStoreSDCardData( const uint8_t *pucBuffer, uint32_t ulByteCount )
+{
+const uint8_t *pucReturn;
+
+ if( ( ucIsCachedMemory( pucBuffer ) != pdFALSE ) && ( ulByteCount <= sizeof( pxCacheMem->pucHelpMemory ) ) )
+ {
+ memcpy( pxCacheMem->pucHelpMemory, pucBuffer, ulByteCount );
+ pucReturn = pxCacheMem->pucHelpMemory;
+ xCacheStats.xMemcpyWriteCount++;
+ }
+ else
+ {
+ pucReturn = pucBuffer;
+ xCacheStats.xPassWriteCount++;
+ }
+
+ return pucReturn;
+}
+/*-----------------------------------------------------------*/
+
+static uint8_t *prvReadSDCardData( uint8_t *pucBuffer, uint32_t ulByteCount )
+{
+uint8_t *pucReturn;
+
+ if( ( ucIsCachedMemory( pucBuffer ) != pdFALSE ) && ( ulByteCount <= sizeof( pxCacheMem->pucHelpMemory ) ) )
+ {
+ pucReturn = pxCacheMem->pucHelpMemory;
+ }
+ else
+ {
+ pucReturn = pucBuffer;
+ }
+
+ return pucReturn;
+}
+/*-----------------------------------------------------------*/
+
+static struct xCACHE_MEMORY_INFO *pucGetSDIOCacheMemory( )
+{
+ if( pxCacheMem == NULL )
+ {
+ pxCacheMem = ( struct xCACHE_MEMORY_INFO * ) pucGetUncachedMemory( sizeof( *pxCacheMem ) );
+ memset( pxCacheMem, '\0', sizeof( *pxCacheMem ) );
+ }
+ return pxCacheMem;
+}
+/*-----------------------------------------------------------*/
+
+/* Initialise the SDIO driver and mount an SD card */
+FF_Disk_t *FF_SDDiskInit( const char *pcName )
+{
+FF_Error_t xFFError;
+BaseType_t xPartitionNumber = 0;
+FF_CreationParameters_t xParameters;
+FF_Disk_t * pxDisk;
+#if( ffconfigSDIO_DRIVER_USES_INTERRUPT != 0 )
+ int iIndex;
+#endif
+
+ pucGetSDIOCacheMemory();
+
+ pxDisk = (FF_Disk_t *)pvPortMalloc( sizeof( *pxDisk ) );
+ if( pxDisk == NULL )
+ {
+ FF_PRINTF( "FF_SDDiskInit: Malloc failed\n" );
+ }
+ else if( pxCacheMem == NULL )
+ {
+ FF_PRINTF( "FF_SDDiskInit: Cached memory failed\n" );
+ }
+ else
+ {
+ pxSDCardInstance = &( pxCacheMem->xSDCardInstance );
+
+ #if( ffconfigSDIO_DRIVER_USES_INTERRUPT != 0 )
+ {
+ for( iIndex = 0; iIndex < ARRAY_SIZE( xSDSemaphores ); iIndex++ )
+ {
+ if( xSDSemaphores[ iIndex ] == NULL )
+ {
+ xSDSemaphores[ iIndex ] = xSemaphoreCreateBinary();
+ configASSERT( xSDSemaphores[ iIndex ] != NULL );
+ }
+ }
+ }
+ #endif
+
+ vSDMMC_Init( 0 );
+
+ /* Initialise the created disk structure. */
+ memset( pxDisk, '\0', sizeof( *pxDisk ) );
+
+ pxDisk->ulNumberOfSectors = myCSD.sd_last_block_address + 1;
+
+ if( xPlusFATMutex == NULL )
+ {
+ xPlusFATMutex = xSemaphoreCreateRecursiveMutex();
+ }
+ pxDisk->ulSignature = sdSIGNATURE;
+
+ if( xPlusFATMutex != NULL)
+ {
+ memset( &xParameters, '\0', sizeof( xParameters ) );
+ xParameters.pucCacheMemory = pxCacheMem->pucCacheMemory;
+ xParameters.ulMemorySize = sizeof( pxCacheMem->pucCacheMemory );
+ xParameters.ulSectorSize = 512;
+ xParameters.fnWriteBlocks = prvFFWrite;
+ xParameters.fnReadBlocks = prvFFRead;
+ xParameters.pxDisk = pxDisk;
+
+ /* prvFFRead()/prvFFWrite() are not re-entrant and must be protected with
+ the use of a semaphore. */
+ xParameters.xBlockDeviceIsReentrant = pdFALSE;
+
+ /* The semaphore will be used to protect critical sections in the +FAT driver,
+ and also to avoid concurrent calls to prvFFRead()/prvFFWrite() from different tasks. */
+ xParameters.pvSemaphore = ( void * ) xPlusFATMutex;
+
+ pxDisk->pxIOManager = FF_CreateIOManger( &xParameters, &xFFError );
+ if( pxDisk->pxIOManager == NULL )
+ {
+ FF_PRINTF( "FF_SDDiskInit: FF_CreateIOManger: %s\n", (const char*)FF_GetErrMessage( xFFError ) );
+ FF_SDDiskDelete( pxDisk );
+ pxDisk = NULL;
+ }
+ else
+ {
+ pxDisk->xStatus.bIsInitialised = pdTRUE;
+ pxDisk->xStatus.bPartitionNumber = xPartitionNumber;
+
+ if( FF_SDDiskMount( pxDisk ) == 0 )
+ {
+ FF_SDDiskDelete( pxDisk );
+ pxDisk = NULL;
+ }
+ else
+ {
+ if( pcName == NULL )
+ {
+ pcName = "/";
+ }
+
+ FF_FS_Add( pcName, pxDisk );
+ FF_PRINTF( "FF_SDDiskInit: Mounted SD-card as root \"%s\"\n", pcName );
+ FF_SDDiskShowPartition( pxDisk );
+ }
+ }
+ }
+ }
+
+ return pxDisk;
+}
+/*-----------------------------------------------------------*/
+
+BaseType_t FF_SDDiskFormat( FF_Disk_t *pxDisk, BaseType_t aPart )
+{
+FF_Error_t xError;
+BaseType_t xReturn = 0;
+
+ FF_SDDiskUnmount( pxDisk );
+ {
+ /* Format the drive */
+ xError = FF_Format( pxDisk, aPart, pdFALSE, pdFALSE); // Try FAT32 with large clusters
+ if( FF_isERR( xError ) )
+ {
+ FF_PRINTF( "FF_SDDiskFormat: %s\n", (const char*)FF_GetErrMessage( xError ) );
+ return 0;
+ }
+ else
+ {
+ FF_PRINTF( "FF_SDDiskFormat: OK, now remounting\n" );
+ pxDisk->xStatus.bPartitionNumber = aPart;
+ xError = FF_SDDiskMount( pxDisk );
+ FF_PRINTF( "FF_SDDiskFormat: rc %08x\n", ( unsigned )xError );
+ if( FF_isERR( xError ) == pdFALSE )
+ {
+ xReturn = 1;
+ FF_SDDiskShowPartition( pxDisk );
+ }
+ }
+ }
+ return xReturn;
+}
+/*-----------------------------------------------------------*/
+
+/* Unmount the volume */
+BaseType_t FF_SDDiskUnmount( FF_Disk_t *pxDisk )
+{
+FF_Error_t xFFError;
+BaseType_t xReturn = 1;
+
+ if( ( pxDisk != NULL ) && ( pxDisk->xStatus.bIsMounted != pdFALSE ) )
+ {
+ pxDisk->xStatus.bIsMounted = pdFALSE;
+ xFFError = FF_Unmount( pxDisk );
+ FF_PRINTF( "FF_SDDiskUnmount: rc %08x\n", ( unsigned )xFFError );
+ if( FF_isERR( xFFError ) )
+ {
+ xReturn = 0;
+ }
+ else
+ {
+ FF_PRINTF( "Drive unmounted\n" );
+ }
+ }
+
+ return xReturn;
+}
+/*-----------------------------------------------------------*/
+
+BaseType_t FF_SDDiskReinit( FF_Disk_t *pxDisk )
+{
+int iStatus = vSDMMC_Init( 0 ); /* Hard coded index. */
+
+ /*_RB_ parameter not used. */
+ ( void ) pxDisk;
+
+ FF_PRINTF( "FF_SDDiskReinit: rc %08x\n", ( unsigned )iStatus );
+ return iStatus;
+}
+/*-----------------------------------------------------------*/
+
+BaseType_t FF_SDDiskMount( FF_Disk_t *pxDisk )
+{
+FF_Error_t xFFError;
+BaseType_t xReturn = 1;
+
+ /* Mount the partition */
+ xFFError = FF_Mount( pxDisk, pxDisk->xStatus.bPartitionNumber );
+
+ if( FF_isERR( xFFError ) )
+ {
+ FF_PRINTF( "FF_SDDiskMount: %08lX\n", xFFError );
+ xReturn = 0;
+ }
+ else
+ {
+ pxDisk->xStatus.bIsMounted = pdTRUE;
+ FF_PRINTF( "****** FreeRTOS+FAT initialized %lu sectors\n", pxDisk->pxIOManager->xPartition.ulTotalSectors );
+ }
+
+ return xReturn;
+}
+/*-----------------------------------------------------------*/
+
+/* Get a pointer to IOMAN, which can be used for all FreeRTOS+FAT functions */
+FF_IOManager_t *sddisk_ioman( FF_Disk_t *pxDisk )
+{
+FF_IOManager_t *pxReturn;
+
+ if( ( pxDisk != NULL ) && ( pxDisk->xStatus.bIsInitialised != pdFALSE ) )
+ {
+ pxReturn = pxDisk->pxIOManager;
+ }
+ else
+ {
+ pxReturn = NULL;
+ }
+ return pxReturn;
+}
+/*-----------------------------------------------------------*/
+
+/* Release all resources */
+BaseType_t FF_SDDiskDelete( FF_Disk_t *pxDisk )
+{
+ if( pxDisk != NULL )
+ {
+ pxDisk->ulSignature = 0;
+ pxDisk->xStatus.bIsInitialised = 0;
+ if( pxDisk->pxIOManager != NULL )
+ {
+ if( FF_Mounted( pxDisk->pxIOManager ) != pdFALSE )
+ {
+ FF_Unmount( pxDisk );
+ }
+ FF_DeleteIOManager( pxDisk->pxIOManager );
+ }
+
+ vPortFree( pxDisk );
+ }
+ return 1;
+}
+/*-----------------------------------------------------------*/
+
+BaseType_t FF_SDDiskShowPartition( FF_Disk_t *pxDisk )
+{
+FF_Error_t xError;
+uint64_t ullFreeSectors;
+uint32_t ulTotalSizeMB, ulFreeSizeMB;
+int iPercentageFree;
+FF_IOManager_t *pxIOManager;
+const char *pcTypeName = "unknown type";
+BaseType_t xReturn = pdPASS;
+
+ if( pxDisk == NULL )
+ {
+ xReturn = pdFAIL;
+ }
+ else
+ {
+ pxIOManager = pxDisk->pxIOManager;
+
+ FF_PRINTF( "Reading FAT and calculating Free Space\n" );
+
+ switch( pxIOManager->xPartition.ucType )
+ {
+ case FF_T_FAT12:
+ pcTypeName = "FAT12";
+ break;
+
+ case FF_T_FAT16:
+ pcTypeName = "FAT16";
+ break;
+
+ case FF_T_FAT32:
+ pcTypeName = "FAT32";
+ break;
+
+ default:
+ pcTypeName = "UNKOWN";
+ break;
+ }
+
+ FF_GetFreeSize( pxIOManager, &xError );
+
+ ullFreeSectors = pxIOManager->xPartition.ulFreeClusterCount * pxIOManager->xPartition.ulSectorsPerCluster;
+ iPercentageFree = ( int ) ( ( HUNDRED_64_BIT * ullFreeSectors + pxIOManager->xPartition.ulDataSectors / 2 ) /
+ ( ( uint64_t )pxIOManager->xPartition.ulDataSectors ) );
+
+ ulTotalSizeMB = pxIOManager->xPartition.ulDataSectors / SECTORS_PER_MB;
+ ulFreeSizeMB = ( uint32_t ) ( ullFreeSectors / SECTORS_PER_MB );
+
+ /* It is better not to use the 64-bit format such as %Lu because it
+ might not be implemented. */
+ FF_PRINTF( "Partition Nr %8u\n", pxDisk->xStatus.bPartitionNumber );
+ FF_PRINTF( "Type %8u (%s)\n", pxIOManager->xPartition.ucType, pcTypeName );
+ FF_PRINTF( "VolLabel '%8s' \n", pxIOManager->xPartition.pcVolumeLabel );
+ FF_PRINTF( "TotalSectors %8lu\n", pxIOManager->xPartition.ulTotalSectors );
+ FF_PRINTF( "DataSectors %8lu\n", pxIOManager->xPartition.ulDataSectors );
+ FF_PRINTF( "SecsPerCluster %8lu\n", pxIOManager->xPartition.ulSectorsPerCluster );
+ FF_PRINTF( "Size %8lu MB\n", ulTotalSizeMB );
+ FF_PRINTF( "FreeSize %8lu MB ( %d perc free )\n", ulFreeSizeMB, iPercentageFree );
+ FF_PRINTF( "BeginLBA %8lu\n", pxIOManager->xPartition.ulBeginLBA );
+ FF_PRINTF( "FATBeginLBA %8lu\n", pxIOManager->xPartition.ulFATBeginLBA );
+ }
+
+ return xReturn;
+}
+/*-----------------------------------------------------------*/
+
+#if( ffconfigSDIO_DRIVER_USES_INTERRUPT != 0 )
+ static void vInstallInterrupt( void )
+ {
+ /* Install an interrupt handler for SDIO_0 */
+ XScuGic_RegisterHandler( INTC_BASE_ADDR, SCUGIC_SDIO_0_INTR,
+ ( Xil_ExceptionHandler )XSdPs_IntrHandler,
+ ( void * )pxSDCardInstance );
+
+ /* Enable this interrupt. */
+ XScuGic_EnableIntr( INTC_DIST_BASE_ADDR, SCUGIC_SDIO_0_INTR );
+
+ /* Choose the signals. */
+ XSdPs_WriteReg16(pxSDCardInstance->Config.BaseAddress,
+ XSDPS_NORM_INTR_SIG_EN_OFFSET,
+ XSDPS_INTR_NORMAL_ENABLE );
+ XSdPs_WriteReg16(pxSDCardInstance->Config.BaseAddress,
+ XSDPS_ERR_INTR_SIG_EN_OFFSET,
+ 0x0 );
+ }
+#endif /* ffconfigSDIO_DRIVER_USES_INTERRUPT */
+/*-----------------------------------------------------------*/
+
+static int vSDMMC_Init( int iDriveNumber )
+{
+int iReturnCode, iStatus;
+XSdPs_Config *SdConfig;
+
+ /*_RB_ Function name not following convention, parameter not used, parameter
+ using plain int type. */
+
+
+ /* Open a do {} while(0) loop to allow the use of break. */
+ do
+ {
+ /* Check if card is in the socket */
+ iStatus = vSDMMC_Status( iDriveNumber );
+ if( ( iStatus & STA_NODISK ) != 0 )
+ {
+ break;
+ }
+
+ /* Assume that the initialisation will fail: set the 'STA_NOINIT' bit. */
+ iStatus |= STA_NOINIT;
+
+ /* Initialize the host controller */
+ SdConfig = XSdPs_LookupConfig(SD_DEVICE_ID);
+ if( SdConfig == NULL )
+ {
+ break;
+ }
+
+ iReturnCode = XSdPs_CfgInitialize(pxSDCardInstance, SdConfig, SdConfig->BaseAddress);
+ if( iReturnCode != XST_SUCCESS )
+ {
+ break;
+ }
+
+ #if( ffconfigSDIO_DRIVER_USES_INTERRUPT != 0 )
+ {
+ vInstallInterrupt();
+ }
+ #endif /* ffconfigSDIO_DRIVER_USES_INTERRUPT */
+ iReturnCode = XSdPs_CardInitialize( pxSDCardInstance );
+ if( iReturnCode != XST_SUCCESS )
+ {
+ break;
+ }
+
+ /* Disk is initialized OK: clear the 'STA_NOINIT' bit. */
+ iStatus &= ~( STA_NOINIT );
+ } while( 0 );
+
+ sd_disk_status = iStatus;
+
+ return iStatus;
+}
+/*-----------------------------------------------------------*/
+
+static int vSDMMC_Status( int iDriveNumber )
+{
+int iStatus = sd_disk_status;
+u32 ulStatusReg;
+
+ /*_RB_ Function name not following convention, parameter not used, parameter
+ using plain int type. */
+ ( void ) iDriveNumber;
+
+ ulStatusReg = XSdPs_GetPresentStatusReg( XPAR_XSDPS_0_BASEADDR );
+ if( ( ulStatusReg & XSDPS_PSR_CARD_INSRT_MASK ) == 0 )
+ {
+ iStatus = STA_NODISK | STA_NOINIT;
+ }
+ else
+ {
+ iStatus &= ~STA_NODISK;
+ if( ( ulStatusReg & XSDPS_PSR_WPS_PL_MASK ) != 0 )
+ {
+ iStatus &= ~STA_PROTECT;
+ }
+ else
+ {
+ iStatus |= STA_PROTECT;
+ }
+ }
+
+ sd_disk_status = iStatus;
+ return iStatus;
+}
+/*-----------------------------------------------------------*/
+
+BaseType_t FF_SDDiskInserted( BaseType_t xDriveNr )
+{
+BaseType_t xReturn;
+int iStatus;
+
+ /* Check if card is in the socket */
+ iStatus = vSDMMC_Status( xDriveNr );
+ if( ( iStatus & STA_NODISK ) != 0 )
+ {
+ xReturn = pdFALSE;
+ }
+ else
+ {
+ xReturn = pdTRUE;
+ }
+
+ return xReturn;
+}
+
+volatile unsigned sd_int_count = 0;
+
+#if( ffconfigSDIO_DRIVER_USES_INTERRUPT != 0 )
+ volatile u32 ulSDInterruptStatus[2];
+
+ void XSdPs_IntrHandler(void *XSdPsPtr)
+ {
+ XSdPs *InstancePtr = (XSdPs *)XSdPsPtr;
+ int iIndex = InstancePtr->Config.DeviceId;
+ uint32_t ulStatusReg;
+
+ configASSERT( iIndex <= 1 );
+ sd_int_count++;
+
+ /* Read the current status. */
+ ulStatusReg = XSdPs_ReadReg( InstancePtr->Config.BaseAddress, XSDPS_NORM_INTR_STS_OFFSET );
+
+ /* Write to clear error bits. */
+ XSdPs_WriteReg( InstancePtr->Config.BaseAddress, XSDPS_NORM_INTR_STS_OFFSET, ulStatusReg );
+
+ /* The new value must be OR-ed, if not the
+ Command Complete (CC) event might get overwritten
+ by the Transfer Complete (TC) event. */
+ ulSDInterruptStatus[ iIndex ] |= ulStatusReg;
+
+ if( ( ulStatusReg & ( XSDPS_INTR_CARD_INSRT_MASK | XSDPS_INTR_CARD_REM_MASK ) ) != 0 )
+ {
+ /* Could wake-up another task. */
+ }
+ if( xSDSemaphores[ iIndex ] != NULL )
+ {
+ BaseType_t xHigherPriorityTaskWoken = pdFALSE;
+
+ xSemaphoreGiveFromISR( xSDSemaphores[ iIndex ], &xHigherPriorityTaskWoken );
+ if( xHigherPriorityTaskWoken != 0 )
+ {
+ portYIELD_FROM_ISR( xHigherPriorityTaskWoken );
+ }
+ }
+ }
+#endif /* ffconfigSDIO_DRIVER_USES_INTERRUPT */
+/*-----------------------------------------------------------*/
+
+#if( ffconfigSDIO_DRIVER_USES_INTERRUPT != 0 )
+ void XSdPs_ClearInterrupt( XSdPs *InstancePtr )
+ {
+ int iIndex = InstancePtr->Config.DeviceId;
+
+ configASSERT( iIndex <= 1 );
+ ulSDInterruptStatus[ iIndex ] = 0;
+ }
+#endif /* ffconfigSDIO_DRIVER_USES_INTERRUPT */
+/*-----------------------------------------------------------*/
+
+#if( ffconfigSDIO_DRIVER_USES_INTERRUPT != 0 )
+ /* Wait for an interrupt and return the 32 bits of the status register.
+ A return value of 0 means: time-out. */
+ u32 XSdPs_WaitInterrupt( XSdPs *InstancePtr, u32 ulMask, u32 ulWait )
+ {
+ u32 ulStatusReg;
+ int iIndex = InstancePtr->Config.DeviceId;
+ TickType_t xRemainingTime = pdMS_TO_TICKS( sdWAIT_INT_TIME_OUT_MS );
+ TimeOut_t xTimeOut;
+
+ if( ulWait == 0UL )
+ {
+ xRemainingTime = pdMS_TO_TICKS( sdQUICK_WAIT_INT_TIME_OUT_MS );
+ }
+
+ configASSERT( iIndex <= 1 );
+ configASSERT( xSDSemaphores[ iIndex ] != 0 );
+ vTaskSetTimeOutState( &xTimeOut );
+ /* Loop until:
+ 1. Expected bit (ulMask) becomes high
+ 2. Time-out reached (normally 2 seconds)
+ */
+ do
+ {
+ if( xRemainingTime != 0 )
+ {
+ xSemaphoreTake( xSDSemaphores[ iIndex ], xRemainingTime );
+ }
+ ulStatusReg = ulSDInterruptStatus[ iIndex ];
+ if( ( ulStatusReg & XSDPS_INTR_ERR_MASK ) != 0 )
+ {
+ break;
+ }
+ }
+ while( ( xTaskCheckForTimeOut( &xTimeOut, &xRemainingTime ) == pdFALSE ) &&
+ ( ( ulStatusReg & ulMask ) == 0 ) );
+
+ if( ( ulStatusReg & ulMask ) == 0 )
+ {
+ ulStatusReg = XSdPs_ReadReg( InstancePtr->Config.BaseAddress, XSDPS_NORM_INTR_STS_OFFSET );
+ if( ulWait != 0UL )
+ {
+ FF_PRINTF( "XSdPs_WaitInterrupt[ %d ]: Got %08lx, expect %08lx ints: %d\n",
+ iIndex,
+ ulStatusReg,
+ ulMask,
+ sd_int_count );
+ }
+ }
+
+ return ulStatusReg;
+ }
+
+#endif /* ffconfigSDIO_DRIVER_USES_INTERRUPT */
+/*-----------------------------------------------------------*/
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