SDFatFS.h

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/*!****************************************************************************
 *  @file       SDFatFS.h
 *
 *  @brief      File Allocation Table File System (FATFS) Driver
 *
 *  The SDFatFS header file should be included in an application as follows:
 *  @code
 *  #include <ti/drivers/SDFatFS.h>
 *  #include <ti/drivers/SD.h>
 *  @endcode
 *
 *  @anchor ti_drivers_SDFatFS_Overview
 *  # Overview #
 *
 *  The SDFatFS driver is designed to hook into FatFs by implementing a
 *  set of functions that FatFs needs to call to perform basic block data
 *  transfers. This driver makes use of the SD driver for lower level disk IO
 *  operations.
 *
 *  The only functions that should be called by the application are the
 *  standard driver framework functions (_open, _close, etc...).
 *
 *  The application may use the FatFs APIs or the standard C
 *  runtime file I/O calls (fopen, fclose, etc...) given that SDFatFS_open has
 *  has been successfully called. After the SDFatFS_close API is called,
 *  ensure the application does NOT make any file I/O calls.
 *
 *  ## Opening the driver #
 *
 *  @code
 *  SDFatFS_Handle handle;
 *
 *  handle = SDFatFS_open(CONFIG_SDFatFS0, driveNum, NULL);
 *  if (handle == NULL) {
 *      //Error opening SDFatFS driver
 *      while (1);
 *  }
 *  @endcode
 *
 *  # Instrumentation #
 *
 *  The SDFatFS driver interface produces log statements if
 *  instrumentation is enabled.
 *
 *  Diagnostics Mask | Log details                   |
 *  ---------------- | -----------                   |
 *  Diags_USER1      | basic operations performed    |
 *  Diags_USER2      | detailed operations performed |
 *  ============================================================================
 */

#ifndef ti_drivers_SDFatFS__include
#define ti_drivers_SDFatFS__include

#include <stdint.h>

#include <ti/drivers/SD.h>

#include <third_party/fatfs/ff.h>
#include <third_party/fatfs/diskio.h>

#ifdef __cplusplus
extern "C" {
#endif

typedef struct {
    uint_fast32_t driveNum;
    DSTATUS       diskState;
    FATFS         filesystem; /* FATFS data object */
    SD_Handle     sdHandle;
} SDFatFS_Object;

typedef struct {
    SDFatFS_Object *object;
} SDFatFS_Config;


typedef SDFatFS_Config *SDFatFS_Handle;

extern SDFatFS_Handle SDFatFS_open(uint_least8_t idx, uint_least8_t drive);

extern void SDFatFS_close(SDFatFS_Handle handle);

extern void SDFatFS_init(void);

#ifdef __cplusplus
}
#endif

#endif /* ti_drivers_SDFatFS__include */