bt-67xx_universal_hw/peripheral_modules/inc/spi_flash.h

#ifndef SPI_FLASH_H
#define SPI_FLASH_H

#include <stdint.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#ifdef PRINTF_STDLIB
#include <stdio.h>
#endif
#ifdef PRINTF_CUSTOM
#include "tinystdio.h"
#endif

#define SPI_FLASH_SECTOR_SIZE		        4096
#define SPI_FLASH_SECTORS_IN_BLOCK_NUMBER   16
#define SPI_FLASH_BLOCK_SIZE                16//4
#define SPI_FLASH_BLOCK_NUMBER		        32

// SPI flash partitioning layout
#define LOG_FLASH_SECTOR_OFFSET	4
#ifdef HARDWARE_BT6711
// assuming 512 sectors
#define ALARM_LOG_FLASH_SECTOR_OFFSET	174
#define SECTOR_COUNT 170
#define FIRMWARE_UPDATE_SECTOR_OFFSET	344
#define FIRMWARE_UPDATE_SECTOR_COUNT	(512 - FIRMWARE_UPDATE_SECTOR_OFFSET)
#else // HARDWARE_BT6711
#define ALARM_LOG_FLASH_SECTOR_OFFSET	258
#define SECTOR_COUNT (spi_flash_desc.sector_count/2 - LOG_FLASH_SECTOR_OFFSET)
#endif // HARDWARE_BT6711

#if defined ( __ICCARM__ )
typedef int ssize_t;
#endif

typedef struct {
	bool present;
//	uint16_t sector_size;
	uint32_t sector_size;
	uint8_t sector_erase_op;
	uint16_t sector_count;
} spi_flash_desc_t;

extern spi_flash_desc_t spi_flash_desc;

extern bool spi_flash_init(void);
extern ssize_t spi_flash_read(int addr, void *buf, size_t len, uint32_t timeout);
extern ssize_t spi_flash_write(int addr, const void *buf, size_t len, uint32_t timeout);
extern int spi_flash_erase_sector(int addr, uint32_t timeout);
extern int spi_flash_chip_erase(uint32_t timeout);
extern bool spi_flash_test(void);
#endif /* SPI_FLASH_H */