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/*
* Header file for UBI support for U-Boot
*
* Adaptation from kernel to U-Boot
*
* Copyright (C) 2005-2007 Samsung Electronics
* Kyungmin Park <[email protected]>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UBOOT_UBI_H
#define __UBOOT_UBI_H
#include <compiler.h>
#include <linux/compat.h>
#include <malloc.h>
#include <div64.h>
#include <linux/math64.h>
#include <linux/crc32.h>
#include <linux/types.h>
#include <linux/list.h>
#include <linux/rbtree.h>
#include <linux/string.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/ubi.h>
#ifdef CONFIG_CMD_ONENAND
#include <onenand_uboot.h>
#endif
#include <linux/errno.h>
/* build.c */
#define get_device(...)
#define put_device(...)
#define ubi_sysfs_init(...) 0
#define ubi_sysfs_close(...) do { } while (0)
#ifndef __UBIFS_H__
#include "../drivers/mtd/ubi/ubi.h"
#endif
/* functions */
int ubi_mtd_param_parse(const char *val, struct kernel_param *kp);
int ubi_init(void);
void ubi_exit(void);
/**
* ubi_detach() - detach UBI from MTD partition
*
* This function performs the cleanup of the UBI subsystem to make sure the
* MTD partition can be safely used for another purpose, or be attached again
* with ubi_part().
*
* Any mounted UBIFS will be unmounted automatically.
*
* Return: 0
*/
int ubi_detach(void);
/**
* ubi_part() - attach UBI to MTD partition
* @part_name: name of the MTD partition to attach
* @vid_header_offset: VID header offset (string)
*
* This function detaches any existing UBI device, then probes for the
* specified MTD partition, and then scans it to initialize UBI.
*
* @vid_header_offset is optional and is usually set to NULL.
*
* Return: 0 on success, or -ve on error.
*/
int ubi_part(const char *part_name, const char *vid_header_offset);
/**
* ubi_volume_write() - write data to UBI volume
* @volume: name of the volume to write to
* @buf: data buffer to be written
* @offset: start offset for writing
* @size: number of bytes to write
*
* This function writes data to the specific UBI volume. If the offset is zero,
* it initiates a full volume update. Otherwise, it performs an offset-based
* write using LEB changes.
*
* Return: 0 on success, or -ve on error.
*/
int ubi_volume_write(const char *volume, const void *buf, loff_t offset,
size_t size);
/**
* ubi_volume_read() - read data from UBI volume
* @volume: name of the volume to read from
* @buf: buffer to hold the read data
* @offset: start offset for reading
* @size: number of bytes to read
*
* This function reads data from the specified UBI volume. If @size is zero,
* the function reads the entire volume content starting from @offset.
*
* Return: 0 on success, or -ve on error.
*/
int ubi_volume_read(const char *volume, void *buf, loff_t offset, size_t size);
/**
* ubi_create_vol() - create UBI volume
* @volume: name of the volume to create
* @size: size of the volume in bytes
* @dynamic: create dynamic volume if set to true
* @vol_id: volume ID
* @skipcheck: skip CRC check on this volume if set to true
*
* This function creates a new UBI volume with the specified parameters.
* If @size is negative, all available space will be used.
* For volume ID auto assignment, pass %UBI_VOL_NUM_AUTO to @vol_id.
*
* Return: 0 on success, or -ve on error.
*/
int ubi_create_vol(const char *volume, int64_t size, bool dynamic, int vol_id,
bool skipcheck);
/**
* ubi_find_volume() - find UBI volume by name
* @volume: name of the volume to find
*
* This function searches for a UBI volume with the specified name in the
* current UBI device.
*
* Return: pointer to the UBI volume structure, or %NULL if not found.
*/
struct ubi_volume *ubi_find_volume(const char *volume);
/**
* ubi_remove_vol() - remove UBI volume
* @volume: name of the volume to remove
*
* This function removes an existing UBI volume from the current UBI device.
*
* Return: 0 on success, or -ve on error.
*/
int ubi_remove_vol(const char *volume);
extern struct ubi_device *ubi_devices[];
int cmd_ubifs_mount(const char *vol_name);
int cmd_ubifs_umount(void);
#if IS_ENABLED(CONFIG_UBI_BLOCK)
int ubi_bind(struct udevice *dev);
#else
static inline int ubi_bind(struct udevice *dev)
{
return -EOPNOTSUPP;
}
#endif
#endif
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