2 * Copyright (c) 2010-2012 Semihalf.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
36 #include <dev/nand/nand_dev.h>
39 int nand_read(struct cmd_param *params)
41 struct chip_param_io chip_params;
42 int fd = -1, out_fd = -1, done = 0, ret = 0;
44 int pos, count, mult, block_size;
47 if (!(dev = param_get_string(params, "dev"))) {
48 fprintf(stderr, "You must specify 'dev' parameter\n");
52 if ((out = param_get_string(params, "out"))) {
53 out_fd = open(out, O_WRONLY|O_CREAT);
55 perrorf("Cannot open %s for writing", out);
60 if ((fd = g_open(dev, 1)) == -1) {
61 perrorf("Cannot open %s", dev);
66 if (ioctl(fd, NAND_IO_GET_CHIP_PARAM, &chip_params) == -1) {
67 perrorf("Cannot ioctl(NAND_IO_GET_CHIP_PARAM)");
72 block_size = chip_params.page_size * chip_params.pages_per_block;
74 if (param_has_value(params, "page")) {
75 pos = chip_params.page_size * param_get_int(params, "page");
76 mult = chip_params.page_size;
77 } else if (param_has_value(params, "block")) {
78 pos = block_size * param_get_int(params, "block");
80 } else if (param_has_value(params, "pos")) {
81 pos = param_get_int(params, "pos");
83 if (pos % chip_params.page_size) {
84 fprintf(stderr, "Position must be page-size aligned!\n");
89 fprintf(stderr, "You must specify one of: 'block', 'page',"
95 if (!(param_has_value(params, "count")))
98 count = param_get_int(params, "count") * mult;
100 if (!(buf = malloc(chip_params.page_size))) {
101 perrorf("Cannot allocate buffer [size %x]",
102 chip_params.page_size);
107 lseek(fd, pos, SEEK_SET);
109 while (done < count) {
110 if ((ret = read(fd, buf, chip_params.page_size)) !=
111 (int32_t)chip_params.page_size) {
112 perrorf("read error (read %d bytes)", ret);
118 if ((ret = write(out_fd, buf, chip_params.page_size)) !=
119 (int32_t)chip_params.page_size) {
120 perrorf("write error (written %d bytes)", ret);
125 hexdumpoffset(buf, chip_params.page_size, done);