[J-u-boot.git] / fs / fs.c

/*
 * Copyright (c) 2012, NVIDIA CORPORATION.  All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <config.h>
#include <common.h>
#include <part.h>
#include <ext4fs.h>
#include <fat.h>
#include <fs.h>
#include <sandboxfs.h>
#include <asm/io.h>

DECLARE_GLOBAL_DATA_PTR;

static block_dev_desc_t *fs_dev_desc;
static disk_partition_t fs_partition;
static int fs_type = FS_TYPE_ANY;

static inline int fs_probe_unsupported(block_dev_desc_t *fs_dev_desc,
				      disk_partition_t *fs_partition)
{
	printf("** Unrecognized filesystem type **\n");
	return -1;
}

static inline int fs_ls_unsupported(const char *dirname)
{
	return -1;
}

static inline int fs_exists_unsupported(const char *filename)
{
	return 0;
}

static inline int fs_read_unsupported(const char *filename, void *buf,
				      int offset, int len)
{
	return -1;
}

static inline int fs_write_unsupported(const char *filename, void *buf,
				      int offset, int len)
{
	return -1;
}

static inline void fs_close_unsupported(void)
{
}

struct fstype_info {
	int fstype;
	/*
	 * Is it legal to pass NULL as .probe()'s  fs_dev_desc parameter? This
	 * should be false in most cases. For "virtual" filesystems which
	 * aren't based on a U-Boot block device (e.g. sandbox), this can be
	 * set to true. This should also be true for the dumm entry at the end
	 * of fstypes[], since that is essentially a "virtual" (non-existent)
	 * filesystem.
	 */
	bool null_dev_desc_ok;
	int (*probe)(block_dev_desc_t *fs_dev_desc,
		     disk_partition_t *fs_partition);
	int (*ls)(const char *dirname);
	int (*exists)(const char *filename);
	int (*read)(const char *filename, void *buf, int offset, int len);
	int (*write)(const char *filename, void *buf, int offset, int len);
	void (*close)(void);
};

static struct fstype_info fstypes[] = {
#ifdef CONFIG_FS_FAT
	{
		.fstype = FS_TYPE_FAT,
		.null_dev_desc_ok = false,
		.probe = fat_set_blk_dev,
		.close = fat_close,
		.ls = file_fat_ls,
		.exists = fat_exists,
		.read = fat_read_file,
		.write = fs_write_unsupported,
	},
#endif
#ifdef CONFIG_FS_EXT4
	{
		.fstype = FS_TYPE_EXT,
		.null_dev_desc_ok = false,
		.probe = ext4fs_probe,
		.close = ext4fs_close,
		.ls = ext4fs_ls,
		.exists = ext4fs_exists,
		.read = ext4_read_file,
		.write = fs_write_unsupported,
	},
#endif
#ifdef CONFIG_SANDBOX
	{
		.fstype = FS_TYPE_SANDBOX,
		.null_dev_desc_ok = true,
		.probe = sandbox_fs_set_blk_dev,
		.close = sandbox_fs_close,
		.ls = sandbox_fs_ls,
		.exists = sandbox_fs_exists,
		.read = fs_read_sandbox,
		.write = fs_write_sandbox,
	},
#endif
	{
		.fstype = FS_TYPE_ANY,
		.null_dev_desc_ok = true,
		.probe = fs_probe_unsupported,
		.close = fs_close_unsupported,
		.ls = fs_ls_unsupported,
		.exists = fs_exists_unsupported,
		.read = fs_read_unsupported,
		.write = fs_write_unsupported,
	},
};

static struct fstype_info *fs_get_info(int fstype)
{
	struct fstype_info *info;
	int i;

	for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes) - 1; i++, info++) {
		if (fstype == info->fstype)
			return info;
	}

	/* Return the 'unsupported' sentinel */
	return info;
}

int fs_set_blk_dev(const char *ifname, const char *dev_part_str, int fstype)
{
	struct fstype_info *info;
	int part, i;
#ifdef CONFIG_NEEDS_MANUAL_RELOC
	static int relocated;

	if (!relocated) {
		for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes);
				i++, info++) {
			info->probe += gd->reloc_off;
			info->close += gd->reloc_off;
			info->ls += gd->reloc_off;
			info->read += gd->reloc_off;
			info->write += gd->reloc_off;
		}
		relocated = 1;
	}
#endif

	part = get_device_and_partition(ifname, dev_part_str, &fs_dev_desc,
					&fs_partition, 1);
	if (part < 0)
		return -1;

	for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes); i++, info++) {
		if (fstype != FS_TYPE_ANY && info->fstype != FS_TYPE_ANY &&
				fstype != info->fstype)
			continue;

		if (!fs_dev_desc && !info->null_dev_desc_ok)
			continue;

		if (!info->probe(fs_dev_desc, &fs_partition)) {
			fs_type = info->fstype;
			return 0;
		}
	}

	return -1;
}

static void fs_close(void)
{
	struct fstype_info *info = fs_get_info(fs_type);

	info->close();

	fs_type = FS_TYPE_ANY;
}

int fs_ls(const char *dirname)
{
	int ret;

	struct fstype_info *info = fs_get_info(fs_type);

	ret = info->ls(dirname);

	fs_type = FS_TYPE_ANY;
	fs_close();

	return ret;
}

int fs_exists(const char *filename)
{
	int ret;

	struct fstype_info *info = fs_get_info(fs_type);

	ret = info->exists(filename);

	fs_close();

	return ret;
}

int fs_read(const char *filename, ulong addr, int offset, int len)
{
	struct fstype_info *info = fs_get_info(fs_type);
	void *buf;
	int ret;

	/*
	 * We don't actually know how many bytes are being read, since len==0
	 * means read the whole file.
	 */
	buf = map_sysmem(addr, len);
	ret = info->read(filename, buf, offset, len);
	unmap_sysmem(buf);

	/* If we requested a specific number of bytes, check we got it */
	if (ret >= 0 && len && ret != len) {
		printf("** Unable to read file %s **\n", filename);
		ret = -1;
	}
	fs_close();

	return ret;
}

int fs_write(const char *filename, ulong addr, int offset, int len)
{
	struct fstype_info *info = fs_get_info(fs_type);
	void *buf;
	int ret;

	buf = map_sysmem(addr, len);
	ret = info->write(filename, buf, offset, len);
	unmap_sysmem(buf);

	if (ret >= 0 && ret != len) {
		printf("** Unable to write file %s **\n", filename);
		ret = -1;
	}
	fs_close();

	return ret;
}

int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
		int fstype)
{
	unsigned long addr;
	const char *addr_str;
	const char *filename;
	unsigned long bytes;
	unsigned long pos;
	int len_read;
	unsigned long time;
	char *ep;

	if (argc < 2)
		return CMD_RET_USAGE;
	if (argc > 7)
		return CMD_RET_USAGE;

	if (fs_set_blk_dev(argv[1], (argc >= 3) ? argv[2] : NULL, fstype))
		return 1;

	if (argc >= 4) {
		addr = simple_strtoul(argv[3], &ep, 16);
		if (ep == argv[3] || *ep != '\0')
			return CMD_RET_USAGE;
	} else {
		addr_str = getenv("loadaddr");
		if (addr_str != NULL)
			addr = simple_strtoul(addr_str, NULL, 16);
		else
			addr = CONFIG_SYS_LOAD_ADDR;
	}
	if (argc >= 5) {
		filename = argv[4];
	} else {
		filename = getenv("bootfile");
		if (!filename) {
			puts("** No boot file defined **\n");
			return 1;
		}
	}
	if (argc >= 6)
		bytes = simple_strtoul(argv[5], NULL, 16);
	else
		bytes = 0;
	if (argc >= 7)
		pos = simple_strtoul(argv[6], NULL, 16);
	else
		pos = 0;

	time = get_timer(0);
	len_read = fs_read(filename, addr, pos, bytes);
	time = get_timer(time);
	if (len_read <= 0)
		return 1;

	printf("%d bytes read in %lu ms", len_read, time);
	if (time > 0) {
		puts(" (");
		print_size(len_read / time * 1000, "/s");
		puts(")");
	}
	puts("\n");

	setenv_hex("filesize", len_read);

	return 0;
}

int do_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
	int fstype)
{
	if (argc < 2)
		return CMD_RET_USAGE;
	if (argc > 4)
		return CMD_RET_USAGE;

	if (fs_set_blk_dev(argv[1], (argc >= 3) ? argv[2] : NULL, fstype))
		return 1;

	if (fs_ls(argc >= 4 ? argv[3] : "/"))
		return 1;

	return 0;
}

int file_exists(const char *dev_type, const char *dev_part, const char *file,
		int fstype)
{
	if (fs_set_blk_dev(dev_type, dev_part, fstype))
		return 0;

	return fs_exists(file);
}

int do_save(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
		int fstype)
{
	unsigned long addr;
	const char *filename;
	unsigned long bytes;
	unsigned long pos;
	int len;
	unsigned long time;

	if (argc < 6 || argc > 7)
		return CMD_RET_USAGE;

	if (fs_set_blk_dev(argv[1], argv[2], fstype))
		return 1;

	filename = argv[3];
	addr = simple_strtoul(argv[4], NULL, 16);
	bytes = simple_strtoul(argv[5], NULL, 16);
	if (argc >= 7)
		pos = simple_strtoul(argv[6], NULL, 16);
	else
		pos = 0;

	time = get_timer(0);
	len = fs_write(filename, addr, pos, bytes);
	time = get_timer(time);
	if (len <= 0)
		return 1;

	printf("%d bytes written in %lu ms", len, time);
	if (time > 0) {
		puts(" (");
		print_size(len / time * 1000, "/s");
		puts(")");
	}
	puts("\n");

	return 0;
}
Commit	Line	Data
045fa1e1 SW	1	/*
	2	* Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
	3	*
	4	* This program is free software; you can redistribute it and/or modify it
	5	* under the terms and conditions of the GNU General Public License,
	6	* version 2, as published by the Free Software Foundation.
	7	*
	8	* This program is distributed in the hope it will be useful, but WITHOUT
	9	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	10	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	11	* more details.
	12	*
	13	* You should have received a copy of the GNU General Public License
	14	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	15	*/
	16
	17	#include <config.h>
	18	#include <common.h>
	19	#include <part.h>
	20	#include <ext4fs.h>
	21	#include <fat.h>
	22	#include <fs.h>
92ccc96b	23	#include <sandboxfs.h>
117e0507	24	#include <asm/io.h>
045fa1e1	25
a1b231ce SW	26	DECLARE_GLOBAL_DATA_PTR;
a1b231ce SW	27
045fa1e1 SW	28	static block_dev_desc_t *fs_dev_desc;
	29	static disk_partition_t fs_partition;
	30	static int fs_type = FS_TYPE_ANY;
	31
2ded0d47 SG	32	static inline int fs_probe_unsupported(block_dev_desc_t *fs_dev_desc,
2ded0d47 SG	33	disk_partition_t *fs_partition)
436e2b73 SG	34	{
	35	printf(" Unrecognized filesystem type \n");
	36	return -1;
	37	}
	38
045fa1e1 SW	39	static inline int fs_ls_unsupported(const char *dirname)
045fa1e1 SW	40	{
045fa1e1 SW	41	return -1;
	42	}
	43
6152916a SW	44	static inline int fs_exists_unsupported(const char *filename)
	45	{
	46	return 0;
	47	}
	48
117e0507	49	static inline int fs_read_unsupported(const char filename, void buf,
045fa1e1 SW	50	int offset, int len)
045fa1e1 SW	51	{
045fa1e1 SW	52	return -1;
	53	}
	54
a8f6ab52 SG	55	static inline int fs_write_unsupported(const char filename, void buf,
	56	int offset, int len)
	57	{
	58	return -1;
	59	}
	60
436e2b73 SG	61	static inline void fs_close_unsupported(void)
	62	{
	63	}
	64
436e2b73	65	struct fstype_info {
045fa1e1	66	int fstype;
377202b5 SW	67	/*
	68	* Is it legal to pass NULL as .probe()'s fs_dev_desc parameter? This
	69	* should be false in most cases. For "virtual" filesystems which
	70	* aren't based on a U-Boot block device (e.g. sandbox), this can be
	71	* set to true. This should also be true for the dumm entry at the end
	72	* of fstypes[], since that is essentially a "virtual" (non-existent)
	73	* filesystem.
	74	*/
	75	bool null_dev_desc_ok;
2ded0d47 SG	76	int (probe)(block_dev_desc_t fs_dev_desc,
2ded0d47 SG	77	disk_partition_t *fs_partition);
436e2b73	78	int (ls)(const char dirname);
6152916a	79	int (exists)(const char filename);
117e0507	80	int (read)(const char filename, void *buf, int offset, int len);
a8f6ab52	81	int (write)(const char filename, void *buf, int offset, int len);
436e2b73 SG	82	void (*close)(void);
	83	};
	84
	85	static struct fstype_info fstypes[] = {
	86	#ifdef CONFIG_FS_FAT
045fa1e1 SW	87	{
045fa1e1 SW	88	.fstype = FS_TYPE_FAT,
377202b5	89	.null_dev_desc_ok = false,
e6d52415 SG	90	.probe = fat_set_blk_dev,
e6d52415 SG	91	.close = fat_close,
436e2b73	92	.ls = file_fat_ls,
b7b5f319	93	.exists = fat_exists,
e6d52415	94	.read = fat_read_file,
bd6fb31f	95	.write = fs_write_unsupported,
045fa1e1	96	},
436e2b73 SG	97	#endif
436e2b73 SG	98	#ifdef CONFIG_FS_EXT4
045fa1e1 SW	99	{
045fa1e1 SW	100	.fstype = FS_TYPE_EXT,
377202b5	101	.null_dev_desc_ok = false,
e6d52415 SG	102	.probe = ext4fs_probe,
e6d52415 SG	103	.close = ext4fs_close,
436e2b73	104	.ls = ext4fs_ls,
55af5c93	105	.exists = ext4fs_exists,
e6d52415	106	.read = ext4_read_file,
bd6fb31f	107	.write = fs_write_unsupported,
436e2b73	108	},
92ccc96b SG	109	#endif
	110	#ifdef CONFIG_SANDBOX
	111	{
	112	.fstype = FS_TYPE_SANDBOX,
377202b5	113	.null_dev_desc_ok = true,
92ccc96b SG	114	.probe = sandbox_fs_set_blk_dev,
	115	.close = sandbox_fs_close,
	116	.ls = sandbox_fs_ls,
0a30aa1e	117	.exists = sandbox_fs_exists,
92ccc96b	118	.read = fs_read_sandbox,
7eb2c8d5	119	.write = fs_write_sandbox,
92ccc96b	120	},
436e2b73 SG	121	#endif
	122	{
	123	.fstype = FS_TYPE_ANY,
377202b5	124	.null_dev_desc_ok = true,
436e2b73 SG	125	.probe = fs_probe_unsupported,
	126	.close = fs_close_unsupported,
	127	.ls = fs_ls_unsupported,
6152916a	128	.exists = fs_exists_unsupported,
436e2b73	129	.read = fs_read_unsupported,
a8f6ab52	130	.write = fs_write_unsupported,
045fa1e1 SW	131	},
	132	};
	133
c6f548d2 SG	134	static struct fstype_info *fs_get_info(int fstype)
	135	{
	136	struct fstype_info *info;
	137	int i;
	138
	139	for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes) - 1; i++, info++) {
	140	if (fstype == info->fstype)
	141	return info;
	142	}
	143
	144	/* Return the 'unsupported' sentinel */
	145	return info;
	146	}
	147
045fa1e1 SW	148	int fs_set_blk_dev(const char ifname, const char dev_part_str, int fstype)
045fa1e1 SW	149	{
436e2b73	150	struct fstype_info *info;
045fa1e1	151	int part, i;
a1b231ce SW	152	#ifdef CONFIG_NEEDS_MANUAL_RELOC
	153	static int relocated;
	154
	155	if (!relocated) {
436e2b73 SG	156	for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes);
	157	i++, info++) {
	158	info->probe += gd->reloc_off;
	159	info->close += gd->reloc_off;
	160	info->ls += gd->reloc_off;
	161	info->read += gd->reloc_off;
a8f6ab52	162	info->write += gd->reloc_off;
436e2b73	163	}
a1b231ce SW	164	relocated = 1;
	165	}
	166	#endif
045fa1e1 SW	167
	168	part = get_device_and_partition(ifname, dev_part_str, &fs_dev_desc,
	169	&fs_partition, 1);
	170	if (part < 0)
	171	return -1;
	172
436e2b73 SG	173	for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes); i++, info++) {
	174	if (fstype != FS_TYPE_ANY && info->fstype != FS_TYPE_ANY &&
	175	fstype != info->fstype)
045fa1e1 SW	176	continue;
045fa1e1 SW	177
377202b5 SW	178	if (!fs_dev_desc && !info->null_dev_desc_ok)
	179	continue;
	180
2ded0d47	181	if (!info->probe(fs_dev_desc, &fs_partition)) {
436e2b73	182	fs_type = info->fstype;
045fa1e1 SW	183	return 0;
	184	}
	185	}
	186
045fa1e1 SW	187	return -1;
	188	}
	189
	190	static void fs_close(void)
	191	{
c6f548d2	192	struct fstype_info *info = fs_get_info(fs_type);
045fa1e1	193
c6f548d2	194	info->close();
e6d52415	195
045fa1e1 SW	196	fs_type = FS_TYPE_ANY;
	197	}
	198
	199	int fs_ls(const char *dirname)
	200	{
	201	int ret;
	202
c6f548d2 SG	203	struct fstype_info *info = fs_get_info(fs_type);
	204
	205	ret = info->ls(dirname);
045fa1e1	206
e6d52415	207	fs_type = FS_TYPE_ANY;
045fa1e1 SW	208	fs_close();
	209
	210	return ret;
	211	}
	212
6152916a SW	213	int fs_exists(const char *filename)
	214	{
	215	int ret;
	216
	217	struct fstype_info *info = fs_get_info(fs_type);
	218
	219	ret = info->exists(filename);
	220
	221	fs_close();
	222
	223	return ret;
	224	}
	225
045fa1e1 SW	226	int fs_read(const char *filename, ulong addr, int offset, int len)
045fa1e1 SW	227	{
c6f548d2	228	struct fstype_info *info = fs_get_info(fs_type);
117e0507	229	void *buf;
045fa1e1 SW	230	int ret;
045fa1e1 SW	231
117e0507 SG	232	/*
	233	* We don't actually know how many bytes are being read, since len==0
	234	* means read the whole file.
	235	*/
	236	buf = map_sysmem(addr, len);
	237	ret = info->read(filename, buf, offset, len);
	238	unmap_sysmem(buf);
045fa1e1	239
c6f548d2 SG	240	/* If we requested a specific number of bytes, check we got it */
	241	if (ret >= 0 && len && ret != len) {
	242	printf(" Unable to read file %s \n", filename);
	243	ret = -1;
	244	}
045fa1e1 SW	245	fs_close();
	246
	247	return ret;
	248	}
	249
a8f6ab52 SG	250	int fs_write(const char *filename, ulong addr, int offset, int len)
	251	{
	252	struct fstype_info *info = fs_get_info(fs_type);
	253	void *buf;
	254	int ret;
	255
a8f6ab52 SG	256	buf = map_sysmem(addr, len);
	257	ret = info->write(filename, buf, offset, len);
	258	unmap_sysmem(buf);
	259
bd6fb31f	260	if (ret >= 0 && ret != len) {
a8f6ab52 SG	261	printf(" Unable to write file %s \n", filename);
	262	ret = -1;
	263	}
	264	fs_close();
	265
	266	return ret;
	267	}
	268
f9b55e22	269	int do_load(cmd_tbl_t cmdtp, int flag, int argc, char const argv[],
b770e88a	270	int fstype)
045fa1e1 SW	271	{
	272	unsigned long addr;
	273	const char *addr_str;
	274	const char *filename;
	275	unsigned long bytes;
	276	unsigned long pos;
	277	int len_read;
da1fd96c	278	unsigned long time;
949bbd7c	279	char *ep;
045fa1e1	280
e9b0f99e SW	281	if (argc < 2)
	282	return CMD_RET_USAGE;
	283	if (argc > 7)
045fa1e1 SW	284	return CMD_RET_USAGE;
045fa1e1 SW	285
e9b0f99e	286	if (fs_set_blk_dev(argv[1], (argc >= 3) ? argv[2] : NULL, fstype))
045fa1e1 SW	287	return 1;
	288
	289	if (argc >= 4) {
949bbd7c PM	290	addr = simple_strtoul(argv[3], &ep, 16);
	291	if (ep == argv[3] \|\| *ep != '\0')
	292	return CMD_RET_USAGE;
045fa1e1 SW	293	} else {
	294	addr_str = getenv("loadaddr");
	295	if (addr_str != NULL)
	296	addr = simple_strtoul(addr_str, NULL, 16);
	297	else
	298	addr = CONFIG_SYS_LOAD_ADDR;
	299	}
	300	if (argc >= 5) {
	301	filename = argv[4];
	302	} else {
	303	filename = getenv("bootfile");
	304	if (!filename) {
	305	puts(" No boot file defined \n");
	306	return 1;
	307	}
	308	}
	309	if (argc >= 6)
b770e88a	310	bytes = simple_strtoul(argv[5], NULL, 16);
045fa1e1 SW	311	else
	312	bytes = 0;
	313	if (argc >= 7)
b770e88a	314	pos = simple_strtoul(argv[6], NULL, 16);
045fa1e1 SW	315	else
	316	pos = 0;
	317
da1fd96c	318	time = get_timer(0);
045fa1e1	319	len_read = fs_read(filename, addr, pos, bytes);
da1fd96c	320	time = get_timer(time);
045fa1e1 SW	321	if (len_read <= 0)
	322	return 1;
	323
da1fd96c AB	324	printf("%d bytes read in %lu ms", len_read, time);
	325	if (time > 0) {
	326	puts(" (");
	327	print_size(len_read / time * 1000, "/s");
	328	puts(")");
	329	}
	330	puts("\n");
045fa1e1	331
49c4f037	332	setenv_hex("filesize", len_read);
045fa1e1 SW	333
	334	return 0;
	335	}
	336
	337	int do_ls(cmd_tbl_t cmdtp, int flag, int argc, char const argv[],
	338	int fstype)
	339	{
	340	if (argc < 2)
	341	return CMD_RET_USAGE;
e9b0f99e SW	342	if (argc > 4)
e9b0f99e SW	343	return CMD_RET_USAGE;
045fa1e1 SW	344
	345	if (fs_set_blk_dev(argv[1], (argc >= 3) ? argv[2] : NULL, fstype))
	346	return 1;
	347
e9b0f99e	348	if (fs_ls(argc >= 4 ? argv[3] : "/"))
045fa1e1 SW	349	return 1;
	350
	351	return 0;
	352	}
a8f6ab52	353
6152916a SW	354	int file_exists(const char dev_type, const char dev_part, const char *file,
	355	int fstype)
	356	{
	357	if (fs_set_blk_dev(dev_type, dev_part, fstype))
	358	return 0;
	359
	360	return fs_exists(file);
	361	}
	362
a8f6ab52	363	int do_save(cmd_tbl_t cmdtp, int flag, int argc, char const argv[],
b770e88a	364	int fstype)
a8f6ab52 SG	365	{
	366	unsigned long addr;
	367	const char *filename;
	368	unsigned long bytes;
	369	unsigned long pos;
	370	int len;
	371	unsigned long time;
	372
	373	if (argc < 6 \|\| argc > 7)
	374	return CMD_RET_USAGE;
	375
	376	if (fs_set_blk_dev(argv[1], argv[2], fstype))
	377	return 1;
	378
	379	filename = argv[3];
b770e88a WD	380	addr = simple_strtoul(argv[4], NULL, 16);
b770e88a WD	381	bytes = simple_strtoul(argv[5], NULL, 16);
a8f6ab52	382	if (argc >= 7)
b770e88a	383	pos = simple_strtoul(argv[6], NULL, 16);
a8f6ab52 SG	384	else
	385	pos = 0;
	386
	387	time = get_timer(0);
	388	len = fs_write(filename, addr, pos, bytes);
	389	time = get_timer(time);
	390	if (len <= 0)
	391	return 1;
	392
	393	printf("%d bytes written in %lu ms", len, time);
	394	if (time > 0) {
	395	puts(" (");
	396	print_size(len / time * 1000, "/s");
	397	puts(")");
	398	}
	399	puts("\n");
	400
	401	return 0;
	402	}