--- /dev/null
+/*
+ * 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>
+
+#undef ubi_msg
+#define ubi_msg(fmt, ...) printf("UBI: " fmt "\n", ##__VA_ARGS__)
+
+#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 ubi_check_volumename(const struct ubi_volume *vol, char *name)
+{
+ return strcmp(vol->name, name);
+}
+
+static int ubi_check(char *name)
+{
+ int i;
+
+ for (i = 0; i < (ubi->vtbl_slots + 1); i++) {
+ if (!ubi->volumes[i])
+ continue; /* Empty record */
+
+ if (!ubi_check_volumename(ubi->volumes[i], name))
+ return 0;
+ }
+
+ return -EEXIST;
+}
+
+
+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, int64_t 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 %lld\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;
+}
+
+int ubi_volume_continue_write(char *volume, void *buf, size_t size)
+{
+ int err = 1;
+ struct ubi_volume *vol;
+
+ vol = ubi_find_volume(volume);
+ if (vol == NULL)
+ return ENODEV;
+
+ 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);
+ }
+
+ return 0;
+}
+
+int ubi_volume_begin_write(char *volume, void *buf, size_t size,
+ size_t full_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, full_size);
+ if (err < 0) {
+ printf("Cannot start volume update\n");
+ return -err;
+ }
+
+ return ubi_volume_continue_write(volume, buf, size);
+}
+
+int ubi_volume_write(char *volume, void *buf, size_t size)
+{
+ return ubi_volume_begin_write(volume, buf, size, size);
+}
+
+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;
+
+ 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;
+}
+
+int ubi_part(char *part_name, const char *vid_header_offset)
+{
+ int err = 0;
+ char mtd_dev[16];
+ struct mtd_device *dev;
+ struct part_info *part;
+ u8 pnum;
+
+ if (mtdparts_init() != 0) {
+ printf("Error initializing mtdparts!\n");
+ return 1;
+ }
+
+#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(part_name, &dev, &pnum, &part)) {
+ printf("Partition %s not found!\n", part_name);
+ 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", part_name,
+ mtd_dev);
+ return 1;
+ }
+
+ ubi_dev.selected = 1;
+
+ strcpy(ubi_dev.part_name, part_name);
+ 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;
+}
+
+static int do_ubi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ int64_t size = 0;
+ ulong addr = 0;
+
+ if (argc < 2)
+ return CMD_RET_USAGE;
+
+ if (strcmp(argv[1], "part") == 0) {
+ const char *vid_header_offset = NULL;
+
+ /* 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_RET_USAGE;
+
+ if (argc > 3)
+ vid_header_offset = argv[3];
+
+ return ubi_part(argv[2], vid_header_offset);
+ }
+
+ 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 (strcmp(argv[1], "check") == 0) {
+ if (argc > 2)
+ return ubi_check(argv[2]);
+
+ printf("Error, no volume name passed\n");
+ return 1;
+ }
+
+ 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_strtoull(argv[3], NULL, 16);
+ argc--;
+ }
+ /* Use maximum available size */
+ if (!size) {
+ size = (int64_t)ubi->avail_pebs * ubi->leb_size;
+ printf("No size specified -> Using max size (%lld)\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) {
+ int ret;
+
+ if (argc < 5) {
+ printf("Please see usage\n");
+ return 1;
+ }
+
+ addr = simple_strtoul(argv[2], NULL, 16);
+ size = simple_strtoul(argv[4], NULL, 16);
+
+ if (strlen(argv[1]) == 10 &&
+ strncmp(argv[1] + 5, ".part", 5) == 0) {
+ if (argc < 6) {
+ ret = ubi_volume_continue_write(argv[3],
+ (void *)addr, size);
+ } else {
+ size_t full_size;
+ full_size = simple_strtoul(argv[5], NULL, 16);
+ ret = ubi_volume_begin_write(argv[3],
+ (void *)addr, size, full_size);
+ }
+ } else {
+ ret = ubi_volume_write(argv[3], (void *)addr, size);
+ }
+ if (!ret) {
+ printf("%lld bytes written to volume %s\n", size,
+ argv[3]);
+ }
+
+ return ret;
+ }
+
+ 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) {
+ printf("Read %lld bytes from volume %s to %lx\n", size,
+ argv[3], addr);
+
+ 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 check volumename"
+ " - check if volumename exists\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 write.part address volume size [fullsize]\n"
+ " - Write part of a volume from address\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)"
+);
Code Review / kvmfornfv.git / blobdiff