mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-15 06:33:45 +09:00
![Marek Vasut](/assets/img/avatar_default.png)
cmd_ubi.c: In function ‘ubi_volume_read’: cmd_ubi.c:319:9: warning: variable ‘count_save’ set but not used [-Wunused-but-set-variable] Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Acked-by: Mike Frysinger <vapier@gentoo.org>
629 lines
14 KiB
C
629 lines
14 KiB
C
/*
|
|
* Unsorted Block Image commands
|
|
*
|
|
* Copyright (C) 2008 Samsung Electronics
|
|
* Kyungmin Park <kyungmin.park@samsung.com>
|
|
*
|
|
* Copyright 2008-2009 Stefan Roese <sr@denx.de>, DENX Software Engineering
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <exports.h>
|
|
|
|
#include <nand.h>
|
|
#include <onenand_uboot.h>
|
|
#include <linux/mtd/mtd.h>
|
|
#include <linux/mtd/partitions.h>
|
|
#include <ubi_uboot.h>
|
|
#include <asm/errno.h>
|
|
#include <jffs2/load_kernel.h>
|
|
|
|
#define DEV_TYPE_NONE 0
|
|
#define DEV_TYPE_NAND 1
|
|
#define DEV_TYPE_ONENAND 2
|
|
#define DEV_TYPE_NOR 3
|
|
|
|
/* Private own data */
|
|
static struct ubi_device *ubi;
|
|
static char buffer[80];
|
|
static int ubi_initialized;
|
|
|
|
struct selected_dev {
|
|
char part_name[80];
|
|
int selected;
|
|
int nr;
|
|
struct mtd_info *mtd_info;
|
|
};
|
|
|
|
static struct selected_dev ubi_dev;
|
|
|
|
#ifdef CONFIG_CMD_UBIFS
|
|
int ubifs_is_mounted(void);
|
|
void cmd_ubifs_umount(void);
|
|
#endif
|
|
|
|
static void ubi_dump_vol_info(const struct ubi_volume *vol)
|
|
{
|
|
ubi_msg("volume information dump:");
|
|
ubi_msg("vol_id %d", vol->vol_id);
|
|
ubi_msg("reserved_pebs %d", vol->reserved_pebs);
|
|
ubi_msg("alignment %d", vol->alignment);
|
|
ubi_msg("data_pad %d", vol->data_pad);
|
|
ubi_msg("vol_type %d", vol->vol_type);
|
|
ubi_msg("name_len %d", vol->name_len);
|
|
ubi_msg("usable_leb_size %d", vol->usable_leb_size);
|
|
ubi_msg("used_ebs %d", vol->used_ebs);
|
|
ubi_msg("used_bytes %lld", vol->used_bytes);
|
|
ubi_msg("last_eb_bytes %d", vol->last_eb_bytes);
|
|
ubi_msg("corrupted %d", vol->corrupted);
|
|
ubi_msg("upd_marker %d", vol->upd_marker);
|
|
|
|
if (vol->name_len <= UBI_VOL_NAME_MAX &&
|
|
strnlen(vol->name, vol->name_len + 1) == vol->name_len) {
|
|
ubi_msg("name %s", vol->name);
|
|
} else {
|
|
ubi_msg("the 1st 5 characters of the name: %c%c%c%c%c",
|
|
vol->name[0], vol->name[1], vol->name[2],
|
|
vol->name[3], vol->name[4]);
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
static void display_volume_info(struct ubi_device *ubi)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < (ubi->vtbl_slots + 1); i++) {
|
|
if (!ubi->volumes[i])
|
|
continue; /* Empty record */
|
|
ubi_dump_vol_info(ubi->volumes[i]);
|
|
}
|
|
}
|
|
|
|
static void display_ubi_info(struct ubi_device *ubi)
|
|
{
|
|
ubi_msg("MTD device name: \"%s\"", ubi->mtd->name);
|
|
ubi_msg("MTD device size: %llu MiB", ubi->flash_size >> 20);
|
|
ubi_msg("physical eraseblock size: %d bytes (%d KiB)",
|
|
ubi->peb_size, ubi->peb_size >> 10);
|
|
ubi_msg("logical eraseblock size: %d bytes", ubi->leb_size);
|
|
ubi_msg("number of good PEBs: %d", ubi->good_peb_count);
|
|
ubi_msg("number of bad PEBs: %d", ubi->bad_peb_count);
|
|
ubi_msg("smallest flash I/O unit: %d", ubi->min_io_size);
|
|
ubi_msg("VID header offset: %d (aligned %d)",
|
|
ubi->vid_hdr_offset, ubi->vid_hdr_aloffset);
|
|
ubi_msg("data offset: %d", ubi->leb_start);
|
|
ubi_msg("max. allowed volumes: %d", ubi->vtbl_slots);
|
|
ubi_msg("wear-leveling threshold: %d", CONFIG_MTD_UBI_WL_THRESHOLD);
|
|
ubi_msg("number of internal volumes: %d", UBI_INT_VOL_COUNT);
|
|
ubi_msg("number of user volumes: %d",
|
|
ubi->vol_count - UBI_INT_VOL_COUNT);
|
|
ubi_msg("available PEBs: %d", ubi->avail_pebs);
|
|
ubi_msg("total number of reserved PEBs: %d", ubi->rsvd_pebs);
|
|
ubi_msg("number of PEBs reserved for bad PEB handling: %d",
|
|
ubi->beb_rsvd_pebs);
|
|
ubi_msg("max/mean erase counter: %d/%d", ubi->max_ec, ubi->mean_ec);
|
|
}
|
|
|
|
static int ubi_info(int layout)
|
|
{
|
|
if (layout)
|
|
display_volume_info(ubi);
|
|
else
|
|
display_ubi_info(ubi);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int verify_mkvol_req(const struct ubi_device *ubi,
|
|
const struct ubi_mkvol_req *req)
|
|
{
|
|
int n, err = EINVAL;
|
|
|
|
if (req->bytes < 0 || req->alignment < 0 || req->vol_type < 0 ||
|
|
req->name_len < 0)
|
|
goto bad;
|
|
|
|
if ((req->vol_id < 0 || req->vol_id >= ubi->vtbl_slots) &&
|
|
req->vol_id != UBI_VOL_NUM_AUTO)
|
|
goto bad;
|
|
|
|
if (req->alignment == 0)
|
|
goto bad;
|
|
|
|
if (req->bytes == 0) {
|
|
printf("No space left in UBI device!\n");
|
|
err = ENOMEM;
|
|
goto bad;
|
|
}
|
|
|
|
if (req->vol_type != UBI_DYNAMIC_VOLUME &&
|
|
req->vol_type != UBI_STATIC_VOLUME)
|
|
goto bad;
|
|
|
|
if (req->alignment > ubi->leb_size)
|
|
goto bad;
|
|
|
|
n = req->alignment % ubi->min_io_size;
|
|
if (req->alignment != 1 && n)
|
|
goto bad;
|
|
|
|
if (req->name_len > UBI_VOL_NAME_MAX) {
|
|
printf("Name too long!\n");
|
|
err = ENAMETOOLONG;
|
|
goto bad;
|
|
}
|
|
|
|
return 0;
|
|
bad:
|
|
return err;
|
|
}
|
|
|
|
static int ubi_create_vol(char *volume, int size, int dynamic)
|
|
{
|
|
struct ubi_mkvol_req req;
|
|
int err;
|
|
|
|
if (dynamic)
|
|
req.vol_type = UBI_DYNAMIC_VOLUME;
|
|
else
|
|
req.vol_type = UBI_STATIC_VOLUME;
|
|
|
|
req.vol_id = UBI_VOL_NUM_AUTO;
|
|
req.alignment = 1;
|
|
req.bytes = size;
|
|
|
|
strcpy(req.name, volume);
|
|
req.name_len = strlen(volume);
|
|
req.name[req.name_len] = '\0';
|
|
req.padding1 = 0;
|
|
/* It's duplicated at drivers/mtd/ubi/cdev.c */
|
|
err = verify_mkvol_req(ubi, &req);
|
|
if (err) {
|
|
printf("verify_mkvol_req failed %d\n", err);
|
|
return err;
|
|
}
|
|
printf("Creating %s volume %s of size %d\n",
|
|
dynamic ? "dynamic" : "static", volume, size);
|
|
/* Call real ubi create volume */
|
|
return ubi_create_volume(ubi, &req);
|
|
}
|
|
|
|
static struct ubi_volume *ubi_find_volume(char *volume)
|
|
{
|
|
struct ubi_volume *vol = NULL;
|
|
int i;
|
|
|
|
for (i = 0; i < ubi->vtbl_slots; i++) {
|
|
vol = ubi->volumes[i];
|
|
if (vol && !strcmp(vol->name, volume))
|
|
return vol;
|
|
}
|
|
|
|
printf("Volume %s not found!\n", volume);
|
|
return NULL;
|
|
}
|
|
|
|
static int ubi_remove_vol(char *volume)
|
|
{
|
|
int err, reserved_pebs, i;
|
|
struct ubi_volume *vol;
|
|
|
|
vol = ubi_find_volume(volume);
|
|
if (vol == NULL)
|
|
return ENODEV;
|
|
|
|
printf("Remove UBI volume %s (id %d)\n", vol->name, vol->vol_id);
|
|
|
|
if (ubi->ro_mode) {
|
|
printf("It's read-only mode\n");
|
|
err = EROFS;
|
|
goto out_err;
|
|
}
|
|
|
|
err = ubi_change_vtbl_record(ubi, vol->vol_id, NULL);
|
|
if (err) {
|
|
printf("Error changing Vol tabel record err=%x\n", err);
|
|
goto out_err;
|
|
}
|
|
reserved_pebs = vol->reserved_pebs;
|
|
for (i = 0; i < vol->reserved_pebs; i++) {
|
|
err = ubi_eba_unmap_leb(ubi, vol, i);
|
|
if (err)
|
|
goto out_err;
|
|
}
|
|
|
|
kfree(vol->eba_tbl);
|
|
ubi->volumes[vol->vol_id]->eba_tbl = NULL;
|
|
ubi->volumes[vol->vol_id] = NULL;
|
|
|
|
ubi->rsvd_pebs -= reserved_pebs;
|
|
ubi->avail_pebs += reserved_pebs;
|
|
i = ubi->beb_rsvd_level - ubi->beb_rsvd_pebs;
|
|
if (i > 0) {
|
|
i = ubi->avail_pebs >= i ? i : ubi->avail_pebs;
|
|
ubi->avail_pebs -= i;
|
|
ubi->rsvd_pebs += i;
|
|
ubi->beb_rsvd_pebs += i;
|
|
if (i > 0)
|
|
ubi_msg("reserve more %d PEBs", i);
|
|
}
|
|
ubi->vol_count -= 1;
|
|
|
|
return 0;
|
|
out_err:
|
|
ubi_err("cannot remove volume %s, error %d", volume, err);
|
|
if (err < 0)
|
|
err = -err;
|
|
return err;
|
|
}
|
|
|
|
static int ubi_volume_write(char *volume, void *buf, size_t size)
|
|
{
|
|
int err = 1;
|
|
int rsvd_bytes = 0;
|
|
struct ubi_volume *vol;
|
|
|
|
vol = ubi_find_volume(volume);
|
|
if (vol == NULL)
|
|
return ENODEV;
|
|
|
|
rsvd_bytes = vol->reserved_pebs * (ubi->leb_size - vol->data_pad);
|
|
if (size < 0 || size > rsvd_bytes) {
|
|
printf("size > volume size! Aborting!\n");
|
|
return EINVAL;
|
|
}
|
|
|
|
err = ubi_start_update(ubi, vol, size);
|
|
if (err < 0) {
|
|
printf("Cannot start volume update\n");
|
|
return -err;
|
|
}
|
|
|
|
err = ubi_more_update_data(ubi, vol, buf, size);
|
|
if (err < 0) {
|
|
printf("Couldnt or partially wrote data\n");
|
|
return -err;
|
|
}
|
|
|
|
if (err) {
|
|
size = err;
|
|
|
|
err = ubi_check_volume(ubi, vol->vol_id);
|
|
if (err < 0)
|
|
return -err;
|
|
|
|
if (err) {
|
|
ubi_warn("volume %d on UBI device %d is corrupted",
|
|
vol->vol_id, ubi->ubi_num);
|
|
vol->corrupted = 1;
|
|
}
|
|
|
|
vol->checked = 1;
|
|
ubi_gluebi_updated(vol);
|
|
}
|
|
|
|
printf("%d bytes written to volume %s\n", size, volume);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ubi_volume_read(char *volume, char *buf, size_t size)
|
|
{
|
|
int err, lnum, off, len, tbuf_size;
|
|
void *tbuf;
|
|
unsigned long long tmp;
|
|
struct ubi_volume *vol;
|
|
loff_t offp = 0;
|
|
|
|
vol = ubi_find_volume(volume);
|
|
if (vol == NULL)
|
|
return ENODEV;
|
|
|
|
printf("Read %d bytes from volume %s to %p\n", size, volume, buf);
|
|
|
|
if (vol->updating) {
|
|
printf("updating");
|
|
return EBUSY;
|
|
}
|
|
if (vol->upd_marker) {
|
|
printf("damaged volume, update marker is set");
|
|
return EBADF;
|
|
}
|
|
if (offp == vol->used_bytes)
|
|
return 0;
|
|
|
|
if (size == 0) {
|
|
printf("No size specified -> Using max size (%lld)\n", vol->used_bytes);
|
|
size = vol->used_bytes;
|
|
}
|
|
|
|
if (vol->corrupted)
|
|
printf("read from corrupted volume %d", vol->vol_id);
|
|
if (offp + size > vol->used_bytes)
|
|
size = vol->used_bytes - offp;
|
|
|
|
tbuf_size = vol->usable_leb_size;
|
|
if (size < tbuf_size)
|
|
tbuf_size = ALIGN(size, ubi->min_io_size);
|
|
tbuf = malloc(tbuf_size);
|
|
if (!tbuf) {
|
|
printf("NO MEM\n");
|
|
return ENOMEM;
|
|
}
|
|
len = size > tbuf_size ? tbuf_size : size;
|
|
|
|
tmp = offp;
|
|
off = do_div(tmp, vol->usable_leb_size);
|
|
lnum = tmp;
|
|
do {
|
|
if (off + len >= vol->usable_leb_size)
|
|
len = vol->usable_leb_size - off;
|
|
|
|
err = ubi_eba_read_leb(ubi, vol, lnum, tbuf, off, len, 0);
|
|
if (err) {
|
|
printf("read err %x\n", err);
|
|
err = -err;
|
|
break;
|
|
}
|
|
off += len;
|
|
if (off == vol->usable_leb_size) {
|
|
lnum += 1;
|
|
off -= vol->usable_leb_size;
|
|
}
|
|
|
|
size -= len;
|
|
offp += len;
|
|
|
|
memcpy(buf, tbuf, len);
|
|
|
|
buf += len;
|
|
len = size > tbuf_size ? tbuf_size : size;
|
|
} while (size);
|
|
|
|
free(tbuf);
|
|
return err;
|
|
}
|
|
|
|
static int ubi_dev_scan(struct mtd_info *info, char *ubidev,
|
|
const char *vid_header_offset)
|
|
{
|
|
struct mtd_device *dev;
|
|
struct part_info *part;
|
|
struct mtd_partition mtd_part;
|
|
char ubi_mtd_param_buffer[80];
|
|
u8 pnum;
|
|
int err;
|
|
|
|
if (find_dev_and_part(ubidev, &dev, &pnum, &part) != 0)
|
|
return 1;
|
|
|
|
sprintf(buffer, "mtd=%d", pnum);
|
|
memset(&mtd_part, 0, sizeof(mtd_part));
|
|
mtd_part.name = buffer;
|
|
mtd_part.size = part->size;
|
|
mtd_part.offset = part->offset;
|
|
add_mtd_partitions(info, &mtd_part, 1);
|
|
|
|
strcpy(ubi_mtd_param_buffer, buffer);
|
|
if (vid_header_offset)
|
|
sprintf(ubi_mtd_param_buffer, "mtd=%d,%s", pnum,
|
|
vid_header_offset);
|
|
err = ubi_mtd_param_parse(ubi_mtd_param_buffer, NULL);
|
|
if (err) {
|
|
del_mtd_partitions(info);
|
|
return -err;
|
|
}
|
|
|
|
err = ubi_init();
|
|
if (err) {
|
|
del_mtd_partitions(info);
|
|
return -err;
|
|
}
|
|
|
|
ubi_initialized = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int do_ubi(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
|
|
{
|
|
size_t size = 0;
|
|
ulong addr = 0;
|
|
int err = 0;
|
|
|
|
if (argc < 2)
|
|
return cmd_usage(cmdtp);
|
|
|
|
if (mtdparts_init() != 0) {
|
|
printf("Error initializing mtdparts!\n");
|
|
return 1;
|
|
}
|
|
|
|
if (strcmp(argv[1], "part") == 0) {
|
|
char mtd_dev[16];
|
|
struct mtd_device *dev;
|
|
struct part_info *part;
|
|
const char *vid_header_offset = NULL;
|
|
u8 pnum;
|
|
|
|
/* Print current partition */
|
|
if (argc == 2) {
|
|
if (!ubi_dev.selected) {
|
|
printf("Error, no UBI device/partition selected!\n");
|
|
return 1;
|
|
}
|
|
|
|
printf("Device %d: %s, partition %s\n",
|
|
ubi_dev.nr, ubi_dev.mtd_info->name, ubi_dev.part_name);
|
|
return 0;
|
|
}
|
|
|
|
if (argc < 3)
|
|
return cmd_usage(cmdtp);
|
|
|
|
#ifdef CONFIG_CMD_UBIFS
|
|
/*
|
|
* Automatically unmount UBIFS partition when user
|
|
* changes the UBI device. Otherwise the following
|
|
* UBIFS commands will crash.
|
|
*/
|
|
if (ubifs_is_mounted())
|
|
cmd_ubifs_umount();
|
|
#endif
|
|
|
|
/* todo: get dev number for NAND... */
|
|
ubi_dev.nr = 0;
|
|
|
|
/*
|
|
* Call ubi_exit() before re-initializing the UBI subsystem
|
|
*/
|
|
if (ubi_initialized) {
|
|
ubi_exit();
|
|
del_mtd_partitions(ubi_dev.mtd_info);
|
|
}
|
|
|
|
/*
|
|
* Search the mtd device number where this partition
|
|
* is located
|
|
*/
|
|
if (find_dev_and_part(argv[2], &dev, &pnum, &part)) {
|
|
printf("Partition %s not found!\n", argv[2]);
|
|
return 1;
|
|
}
|
|
sprintf(mtd_dev, "%s%d", MTD_DEV_TYPE(dev->id->type), dev->id->num);
|
|
ubi_dev.mtd_info = get_mtd_device_nm(mtd_dev);
|
|
if (IS_ERR(ubi_dev.mtd_info)) {
|
|
printf("Partition %s not found on device %s!\n", argv[2], mtd_dev);
|
|
return 1;
|
|
}
|
|
|
|
ubi_dev.selected = 1;
|
|
|
|
if (argc > 3)
|
|
vid_header_offset = argv[3];
|
|
strcpy(ubi_dev.part_name, argv[2]);
|
|
err = ubi_dev_scan(ubi_dev.mtd_info, ubi_dev.part_name,
|
|
vid_header_offset);
|
|
if (err) {
|
|
printf("UBI init error %d\n", err);
|
|
ubi_dev.selected = 0;
|
|
return err;
|
|
}
|
|
|
|
ubi = ubi_devices[0];
|
|
|
|
return 0;
|
|
}
|
|
|
|
if ((strcmp(argv[1], "part") != 0) && (!ubi_dev.selected)) {
|
|
printf("Error, no UBI device/partition selected!\n");
|
|
return 1;
|
|
}
|
|
|
|
if (strcmp(argv[1], "info") == 0) {
|
|
int layout = 0;
|
|
if (argc > 2 && !strncmp(argv[2], "l", 1))
|
|
layout = 1;
|
|
return ubi_info(layout);
|
|
}
|
|
|
|
if (strncmp(argv[1], "create", 6) == 0) {
|
|
int dynamic = 1; /* default: dynamic volume */
|
|
|
|
/* Use maximum available size */
|
|
size = 0;
|
|
|
|
/* E.g., create volume size type */
|
|
if (argc == 5) {
|
|
if (strncmp(argv[4], "s", 1) == 0)
|
|
dynamic = 0;
|
|
else if (strncmp(argv[4], "d", 1) != 0) {
|
|
printf("Incorrect type\n");
|
|
return 1;
|
|
}
|
|
argc--;
|
|
}
|
|
/* E.g., create volume size */
|
|
if (argc == 4) {
|
|
size = simple_strtoul(argv[3], NULL, 16);
|
|
argc--;
|
|
}
|
|
/* Use maximum available size */
|
|
if (!size) {
|
|
size = ubi->avail_pebs * ubi->leb_size;
|
|
printf("No size specified -> Using max size (%u)\n", size);
|
|
}
|
|
/* E.g., create volume */
|
|
if (argc == 3)
|
|
return ubi_create_vol(argv[2], size, dynamic);
|
|
}
|
|
|
|
if (strncmp(argv[1], "remove", 6) == 0) {
|
|
/* E.g., remove volume */
|
|
if (argc == 3)
|
|
return ubi_remove_vol(argv[2]);
|
|
}
|
|
|
|
if (strncmp(argv[1], "write", 5) == 0) {
|
|
if (argc < 5) {
|
|
printf("Please see usage\n");
|
|
return 1;
|
|
}
|
|
|
|
addr = simple_strtoul(argv[2], NULL, 16);
|
|
size = simple_strtoul(argv[4], NULL, 16);
|
|
|
|
return ubi_volume_write(argv[3], (void *)addr, size);
|
|
}
|
|
|
|
if (strncmp(argv[1], "read", 4) == 0) {
|
|
size = 0;
|
|
|
|
/* E.g., read volume size */
|
|
if (argc == 5) {
|
|
size = simple_strtoul(argv[4], NULL, 16);
|
|
argc--;
|
|
}
|
|
|
|
/* E.g., read volume */
|
|
if (argc == 4) {
|
|
addr = simple_strtoul(argv[2], NULL, 16);
|
|
argc--;
|
|
}
|
|
|
|
if (argc == 3)
|
|
return ubi_volume_read(argv[3], (char *)addr, size);
|
|
}
|
|
|
|
printf("Please see usage\n");
|
|
return 1;
|
|
}
|
|
|
|
U_BOOT_CMD(
|
|
ubi, 6, 1, do_ubi,
|
|
"ubi commands",
|
|
"part [part] [offset]\n"
|
|
" - Show or set current partition (with optional VID"
|
|
" header offset)\n"
|
|
"ubi info [l[ayout]]"
|
|
" - Display volume and ubi layout information\n"
|
|
"ubi create[vol] volume [size] [type]"
|
|
" - create volume name with size\n"
|
|
"ubi write[vol] address volume size"
|
|
" - Write volume from address with size\n"
|
|
"ubi read[vol] address volume [size]"
|
|
" - Read volume to address with size\n"
|
|
"ubi remove[vol] volume"
|
|
" - Remove volume\n"
|
|
"[Legends]\n"
|
|
" volume: character name\n"
|
|
" size: specified in bytes\n"
|
|
" type: s[tatic] or d[ynamic] (default=dynamic)"
|
|
);
|