cfs-coffee-arch.h

#ifndef CFS_COFFEE_ARCH_H_INCLUDED
#define CFS_COFFEE_ARCH_H_INCLUDED

#include <stdint.h>
#include "contiki-conf.h"

/* TODO: Make it configurable */
#include "dev/spi-memory.h"
#include "dev/eve-module.h"
#include "board.h" // XXX: DT!! FIXME: Dependency to the project: flash size

/* Page size in bytes */
#define COFFEE_PAGE_SIZE          (EXT_FLASH_PAGE_SIZE)

/* Sector size in bytes */
#define COFFEE_SECTOR_SIZE        (EXT_FLASH_BLOCK_SIZE)

/* Index of the first sector of the FS image on flash */
#ifndef COFFEE_START_SECTOR
  #define COFFEE_START_SECTOR     (0)
#endif

/* Offset in bytes to the first byte of the FS image on flash */
#define COFFEE_START              (COFFEE_START_SECTOR * COFFEE_SECTOR_SIZE)

/* FS image size in bytes */ 
#ifndef COFFEE_SIZE
  #define COFFEE_SIZE             (EXT_FLASH_SIZE - COFFEE_START)
#endif

/* Length of the file name field */
#ifndef COFFEE_NAME_LENGTH
  #define COFFEE_NAME_LENGTH      (32)
#endif

/* These are used internally by the coffee file system */
#ifndef COFFEE_MAX_OPEN_FILES
  #define COFFEE_MAX_OPEN_FILES   (4)
#endif

#ifndef COFFEE_FD_SET_SIZE
  #define COFFEE_FD_SET_SIZE      (8)
#endif

#ifndef COFFEE_DYN_SIZE
  #define COFFEE_DYN_SIZE         (COFFEE_PAGE_SIZE * 4)
#endif

#ifndef COFFEE_LOG_TABLE_LIMIT
  #define COFFEE_LOG_TABLE_LIMIT  (256)
#endif

#ifndef COFFEE_LOG_SIZE
  #define COFFEE_LOG_SIZE         (8192)
#endif

/* Up to 16 MBytes for 256 byte pages */
#define coffee_page_t             uint16_t

#define COFFEE_WRITE(buf, size, offset) \
  flash_write(COFFEE_START + offset, buf, size)

#define COFFEE_READ(buf, size, offset) \
  flash_read(COFFEE_START + offset, buf, size)

#define COFFEE_ERASE(sector) \
  flash_erase(COFFEE_START_SECTOR + sector)

/* Async format status */
enum coffee_async_format_status_t
{
  COFFEE_ASYNC_FORMAT_IDLE,
  COFFEE_ASYNC_FORMAT_ONGOING,
};

void flash_read(uint32_t address, void *data, uint32_t length);

void flash_write(uint32_t address, const void *data, uint32_t length);

#define flash_erase(sector) \
  SpiMemoryEraseBlock(&ExtFlash, sector)

void coffee_async_format(void);

void coffee_async_format_cancel(void);

enum coffee_async_format_status_t coffee_async_format_status(void);

int coffee_file_test(void);

#endif /* CFS_COFFEE_ARCH_H_INCLUDED */