1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2010-2012 Semihalf.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#include <sys/cdefs.h>
30__FBSDID("$FreeBSD: stable/11/usr.sbin/nandtool/nand_write.c 330449 2018-03-05 07:26:05Z eadler $");
31
32#include <stdio.h>
33#include <stdlib.h>
34#include <unistd.h>
35#include <fcntl.h>
36#include <libgeom.h>
37#include <sys/disk.h>
38#include <dev/nand/nand_dev.h>
39#include "nandtool.h"
40
41int nand_write(struct cmd_param *params)
42{
43	struct chip_param_io chip_params;
44	char *dev, *file;
45	int in_fd = -1, ret = 0, done = 0;
46	int fd, block_size, mult, pos, count;
47	uint8_t *buf = NULL;
48
49	if (!(dev = param_get_string(params, "dev"))) {
50		fprintf(stderr, "Please supply 'dev' argument.\n");
51		return (1);
52	}
53
54	if (!(file = param_get_string(params, "in"))) {
55		fprintf(stderr, "Please supply 'in' argument.\n");
56		return (1);
57	}
58
59	if ((fd = g_open(dev, 1)) == -1) {
60		perrorf("Cannot open %s", dev);
61		return (1);
62	}
63
64	if ((in_fd = open(file, O_RDONLY)) == -1) {
65		perrorf("Cannot open file %s", file);
66		ret = 1;
67		goto out;
68	}
69
70	if (ioctl(fd, NAND_IO_GET_CHIP_PARAM, &chip_params) == -1) {
71		perrorf("Cannot ioctl(NAND_IO_GET_CHIP_PARAM)");
72		ret = 1;
73		goto out;
74	}
75
76	block_size = chip_params.page_size * chip_params.pages_per_block;
77
78	if (param_has_value(params, "page")) {
79		pos = chip_params.page_size * param_get_int(params, "page");
80		mult = chip_params.page_size;
81	} else if (param_has_value(params, "block")) {
82		pos = block_size * param_get_int(params, "block");
83		mult = block_size;
84	} else if (param_has_value(params, "pos")) {
85		pos = param_get_int(params, "pos");
86		mult = 1;
87		if (pos % chip_params.page_size) {
88			fprintf(stderr, "Position must be page-size "
89			    "aligned!\n");
90			ret = 1;
91			goto out;
92		}
93	} else {
94		fprintf(stderr, "You must specify one of: 'block', 'page',"
95		    "'pos' arguments\n");
96		ret = 1;
97		goto out;
98	}
99
100	if (!(param_has_value(params, "count")))
101		count = mult;
102	else
103		count = param_get_int(params, "count") * mult;
104
105	if (!(buf = malloc(chip_params.page_size))) {
106		perrorf("Cannot allocate buffer [size %x]",
107		    chip_params.page_size);
108		ret = 1;
109		goto out;
110	}
111
112	lseek(fd, pos, SEEK_SET);
113
114	while (done < count) {
115		if ((ret = read(in_fd, buf, chip_params.page_size)) !=
116		    (int32_t)chip_params.page_size) {
117			if (ret > 0) {
118				/* End of file ahead, truncate here */
119				break;
120			} else {
121				perrorf("Cannot read from %s", file);
122				ret = 1;
123				goto out;
124			}
125		}
126
127		if ((ret = write(fd, buf, chip_params.page_size)) !=
128		    (int32_t)chip_params.page_size) {
129			ret = 1;
130			goto out;
131		}
132
133		done += ret;
134	}
135
136out:
137	g_close(fd);
138	if (in_fd != -1)
139		close(in_fd);
140	if (buf)
141		free(buf);
142
143	return (ret);
144}
145
146