disk.h

Go to the documentation of this file.

/*
 * Copyright (c) 2016 Intel Corporation.
 * Copyright (c) 2021 Nordic Semiconductor ASA
 *
 * SPDX-License-Identifier: Apache-2.0
 */

 
#ifndef ZEPHYR_INCLUDE_DRIVERS_DISK_H_
#define ZEPHYR_INCLUDE_DRIVERS_DISK_H_

 
#include <zephyr/kernel.h>
#include <zephyr/types.h>
#include <zephyr/sys/dlist.h>
 
#ifdef __cplusplus
extern "C" {
#endif


#define DISK_IOCTL_GET_SECTOR_COUNT             1
#define DISK_IOCTL_GET_SECTOR_SIZE              2
#define DISK_IOCTL_RESERVED                     3
#define DISK_IOCTL_GET_ERASE_BLOCK_SZ           4
#define DISK_IOCTL_CTRL_SYNC                    5
#define DISK_IOCTL_CTRL_INIT                    6
#define DISK_IOCTL_CTRL_DEINIT                  7


#define DISK_STATUS_OK                  0x00
#define DISK_STATUS_UNINIT              0x01
#define DISK_STATUS_NOMEDIA             0x02
#define DISK_STATUS_WR_PROTECT          0x04
 
struct disk_operations;

struct disk_info {
        sys_dnode_t node;
        const char *name;
        const struct disk_operations *ops;
        const struct device *dev;
        uint16_t refcnt;
};

struct disk_operations {
        int (*init)(struct disk_info *disk);
        int (*status)(struct disk_info *disk);
        int (*read)(struct disk_info *disk, uint8_t *data_buf,
                    uint32_t start_sector, uint32_t num_sector);
        int (*write)(struct disk_info *disk, const uint8_t *data_buf,
                     uint32_t start_sector, uint32_t num_sector);
        int (*erase)(struct disk_info *disk, uint32_t start_sector, uint32_t num_sector);
        int (*ioctl)(struct disk_info *disk, uint8_t cmd, void *buff);
};

int disk_access_register(struct disk_info *disk);

int disk_access_unregister(struct disk_info *disk);
 
#ifdef __cplusplus
}
#endif

 
#endif /* ZEPHYR_INCLUDE_DRIVERS_DISK_H_ */