include: move disk driver interface to own header
Move disk driver interface to own header and separate disk access interface and disk driver interface. Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
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7 changed files with 126 additions and 57 deletions
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@ -8,7 +8,7 @@
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#include <zephyr/types.h>
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#include <sys/__assert.h>
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#include <sys/util.h>
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#include <disk/disk_access.h>
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#include <drivers/disk.h>
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#include <errno.h>
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#include <init.h>
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#include <device.h>
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@ -7,7 +7,7 @@
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#include <string.h>
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#include <zephyr/types.h>
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#include <sys/__assert.h>
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#include <disk/disk_access.h>
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#include <drivers/disk.h>
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#include <errno.h>
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#include <init.h>
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#include <device.h>
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@ -10,7 +10,7 @@
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LOG_MODULE_REGISTER(sdmmc_spi, CONFIG_SDMMC_LOG_LEVEL);
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#include <disk/disk_access.h>
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#include <drivers/disk.h>
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#include <drivers/gpio.h>
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#include <sys/byteorder.h>
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#include <drivers/spi.h>
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@ -7,7 +7,7 @@
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#define DT_DRV_COMPAT st_stm32_sdmmc
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#include <devicetree.h>
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#include <disk/disk_access.h>
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#include <drivers/disk.h>
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#include <drivers/clock_control.h>
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#include <drivers/clock_control/stm32_clock_control.h>
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#include <pinmux/stm32/pinmux_stm32.h>
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@ -7,7 +7,7 @@
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#define DT_DRV_COMPAT nxp_imx_usdhc
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#include <sys/__assert.h>
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#include <disk/disk_access.h>
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#include <drivers/disk.h>
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#include <drivers/gpio.h>
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#include <sys/byteorder.h>
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#include <soc.h>
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@ -6,12 +6,9 @@
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/**
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* @file
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* @brief Disk Access layer APIs and defines
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* @brief Disk Access layer API
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*
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* This file contains APIs for disk access. Apart from disks, various
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* other storage media like Flash and RAM disks may implement this interface to
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* be used by various higher layers(consumers) like USB Mass storage
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* and Filesystems.
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* This file contains APIs for disk access.
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*/
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#ifndef ZEPHYR_INCLUDE_DISK_DISK_ACCESS_H_
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@ -23,54 +20,12 @@
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* @{
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*/
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#include <kernel.h>
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#include <zephyr/types.h>
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#include <sys/dlist.h>
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#include <drivers/disk.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Possible Cmd Codes for disk_ioctl() */
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/* Get the number of sectors in the disk */
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#define DISK_IOCTL_GET_SECTOR_COUNT 1
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/* Get the size of a disk SECTOR in bytes */
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#define DISK_IOCTL_GET_SECTOR_SIZE 2
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/* How many sectors constitute a FLASH Erase block */
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#define DISK_IOCTL_GET_ERASE_BLOCK_SZ 4
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/* Commit any cached read/writes to disk */
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#define DISK_IOCTL_CTRL_SYNC 5
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/* 3 is reserved. It used to be DISK_IOCTL_GET_DISK_SIZE */
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/* Possible return bitmasks for disk_status() */
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#define DISK_STATUS_OK 0x00
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#define DISK_STATUS_UNINIT 0x01
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#define DISK_STATUS_NOMEDIA 0x02
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#define DISK_STATUS_WR_PROTECT 0x04
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struct disk_operations;
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struct disk_info {
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sys_dnode_t node;
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char *name;
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const struct disk_operations *ops;
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/* Disk device associated to this disk.
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*/
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const struct device *dev;
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};
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struct disk_operations {
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int (*init)(struct disk_info *disk);
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int (*status)(struct disk_info *disk);
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int (*read)(struct disk_info *disk, uint8_t *data_buf,
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uint32_t start_sector, uint32_t num_sector);
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int (*write)(struct disk_info *disk, const uint8_t *data_buf,
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uint32_t start_sector, uint32_t num_sector);
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int (*ioctl)(struct disk_info *disk, uint8_t cmd, void *buff);
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};
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/*
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* @brief perform any initialization
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*
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@ -129,10 +84,6 @@ int disk_access_write(const char *pdrv, const uint8_t *data_buf,
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*/
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int disk_access_ioctl(const char *pdrv, uint8_t cmd, void *buff);
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int disk_access_register(struct disk_info *disk);
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int disk_access_unregister(struct disk_info *disk);
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#ifdef __cplusplus
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}
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#endif
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118
include/drivers/disk.h
Normal file
118
include/drivers/disk.h
Normal file
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@ -0,0 +1,118 @@
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/*
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* Copyright (c) 2016 Intel Corporation.
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* Copyright (c) 2021 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @file
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* @brief Disk Driver Interface
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*
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* This file contains interface for disk access. Apart from disks, various
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* other storage media like Flash and RAM disks may implement this interface to
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* be used by various higher layers(consumers) like USB Mass storage
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* and Filesystems.
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*/
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#ifndef ZEPHYR_INCLUDE_DRIVERS_DISK_H_
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#define ZEPHYR_INCLUDE_DRIVERS_DISK_H_
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/**
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* @brief Disk Driver Interface
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* @defgroup disk_driver_interface Disk Driver Interface
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* @{
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*/
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#include <kernel.h>
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#include <zephyr/types.h>
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#include <sys/dlist.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Possible Cmd Codes for disk_ioctl()
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*/
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/** Get the number of sectors in the disk */
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#define DISK_IOCTL_GET_SECTOR_COUNT 1
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/** Get the size of a disk SECTOR in bytes */
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#define DISK_IOCTL_GET_SECTOR_SIZE 2
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/** reserved. It used to be DISK_IOCTL_GET_DISK_SIZE */
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#define DISK_IOCTL_RESERVED 3
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/** How many sectors constitute a FLASH Erase block */
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#define DISK_IOCTL_GET_ERASE_BLOCK_SZ 4
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/** Commit any cached read/writes to disk */
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#define DISK_IOCTL_CTRL_SYNC 5
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/**
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* @brief Possible return bitmasks for disk_status()
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*/
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/** Disk status okay */
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#define DISK_STATUS_OK 0x00
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/** Disk status uninitialized */
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#define DISK_STATUS_UNINIT 0x01
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/** Disk status no media */
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#define DISK_STATUS_NOMEDIA 0x02
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/** Disk status write protected */
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#define DISK_STATUS_WR_PROTECT 0x04
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struct disk_operations;
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/**
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* @brief Disk info
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*/
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struct disk_info {
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/** Internally used list node */
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sys_dnode_t node;
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/** Disk name */
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char *name;
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/** Disk operations */
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const struct disk_operations *ops;
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/** Device associated to this disk */
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const struct device *dev;
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};
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/**
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* @brief Disk operations
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*/
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struct disk_operations {
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int (*init)(struct disk_info *disk);
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int (*status)(struct disk_info *disk);
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int (*read)(struct disk_info *disk, uint8_t *data_buf,
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uint32_t start_sector, uint32_t num_sector);
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int (*write)(struct disk_info *disk, const uint8_t *data_buf,
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uint32_t start_sector, uint32_t num_sector);
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int (*ioctl)(struct disk_info *disk, uint8_t cmd, void *buff);
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};
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/**
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* @brief Register disk
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*
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* @param[in] disk Pointer to the disk info structure
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*
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* @return 0 on success, negative errno code on fail
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*/
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int disk_access_register(struct disk_info *disk);
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/**
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* @brief Unregister disk
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*
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* @param[in] disk Pointer to the disk info structure
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*
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* @return 0 on success, negative errno code on fail
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*/
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int disk_access_unregister(struct disk_info *disk);
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#ifdef __cplusplus
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}
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#endif
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/**
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* @}
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*/
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#endif /* ZEPHYR_INCLUDE_DRIVERS_DISK_H_ */
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