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("$FreeBSD$"); 31 32#include <stdio.h> 33#include <stdlib.h> 34#include <unistd.h> 35#include <fcntl.h> 36#include <libgeom.h> 37#include <sys/types.h> 38#include <sys/disk.h> 39#include <dev/nand/nand_dev.h> 40#include "nandtool.h" 41 42int nand_read_oob(struct cmd_param *params) 43{ 44 struct chip_param_io chip_params; 45 struct nand_oob_rw req; 46 char *dev, *out; 47 int fd = -1, fd_out = -1, ret = 0; 48 int page; 49 uint8_t *buf = NULL; 50 51 if ((page = param_get_int(params, "page")) < 0) { 52 fprintf(stderr, "You must supply valid 'page' argument.\n"); 53 return (1); 54 } 55 56 if (!(dev = param_get_string(params, "dev"))) { 57 fprintf(stderr, "You must supply 'dev' argument.\n"); 58 return (1); 59 } 60 61 if ((out = param_get_string(params, "out"))) { 62 if ((fd_out = open(out, O_WRONLY | O_CREAT, 0666)) == -1) { 63 perrorf("Cannot open %s", out); 64 ret = 1; 65 goto out; 66 } 67 } 68 69 if ((fd = g_open(dev, 1)) == -1) { 70 perrorf("Cannot open %s", dev); 71 ret = 1; 72 goto out; 73 } 74 75 if (ioctl(fd, NAND_IO_GET_CHIP_PARAM, &chip_params) == -1) { 76 perrorf("Cannot ioctl(NAND_IO_GET_CHIP_PARAM)"); 77 ret = 1; 78 goto out; 79 } 80 81 buf = malloc(chip_params.oob_size); 82 if (buf == NULL) { 83 perrorf("Cannot allocate %d bytes\n", chip_params.oob_size); 84 ret = 1; 85 goto out; 86 } 87 88 req.page = page; 89 req.len = chip_params.oob_size; 90 req.data = buf; 91 92 if (ioctl(fd, NAND_IO_OOB_READ, &req) == -1) { 93 perrorf("Cannot read OOB from %s", dev); 94 ret = 1; 95 goto out; 96 } 97 98 if (fd_out != -1) 99 write(fd_out, buf, chip_params.oob_size); 100 else 101 hexdump(buf, chip_params.oob_size); 102 103out: 104 close(fd_out); 105 106 if (fd != -1) 107 g_close(fd); 108 if (buf) 109 free(buf); 110 111 return (ret); 112} 113 114