1235537Sgber/*- 2235537Sgber * Copyright (c) 2010-2012 Semihalf. 3235537Sgber * All rights reserved. 4235537Sgber * 5235537Sgber * Redistribution and use in source and binary forms, with or without 6235537Sgber * modification, are permitted provided that the following conditions 7235537Sgber * are met: 8235537Sgber * 1. Redistributions of source code must retain the above copyright 9235537Sgber * notice, this list of conditions and the following disclaimer. 10235537Sgber * 2. Redistributions in binary form must reproduce the above copyright 11235537Sgber * notice, this list of conditions and the following disclaimer in the 12235537Sgber * documentation and/or other materials provided with the distribution. 13235537Sgber * 14235537Sgber * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15235537Sgber * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16235537Sgber * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17235537Sgber * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18235537Sgber * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19235537Sgber * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20235537Sgber * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21235537Sgber * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22235537Sgber * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23235537Sgber * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24235537Sgber * SUCH DAMAGE. 25235537Sgber */ 26235537Sgber 27235537Sgber#include <sys/cdefs.h> 28235537Sgber__FBSDID("$FreeBSD: releng/11.0/usr.sbin/nandtool/nand_read.c 235537 2012-05-17 10:11:18Z gber $"); 29235537Sgber 30235537Sgber#include <stdio.h> 31235537Sgber#include <stdlib.h> 32235537Sgber#include <unistd.h> 33235537Sgber#include <fcntl.h> 34235537Sgber#include <libgeom.h> 35235537Sgber#include <sys/disk.h> 36235537Sgber#include <dev/nand/nand_dev.h> 37235537Sgber#include "nandtool.h" 38235537Sgber 39235537Sgberint nand_read(struct cmd_param *params) 40235537Sgber{ 41235537Sgber struct chip_param_io chip_params; 42235537Sgber int fd = -1, out_fd = -1, done = 0, ret = 0; 43235537Sgber char *dev, *out; 44235537Sgber int pos, count, mult, block_size; 45235537Sgber uint8_t *buf = NULL; 46235537Sgber 47235537Sgber if (!(dev = param_get_string(params, "dev"))) { 48235537Sgber fprintf(stderr, "You must specify 'dev' parameter\n"); 49235537Sgber return (1); 50235537Sgber } 51235537Sgber 52235537Sgber if ((out = param_get_string(params, "out"))) { 53235537Sgber out_fd = open(out, O_WRONLY|O_CREAT); 54235537Sgber if (out_fd == -1) { 55235537Sgber perrorf("Cannot open %s for writing", out); 56235537Sgber return (1); 57235537Sgber } 58235537Sgber } 59235537Sgber 60235537Sgber if ((fd = g_open(dev, 1)) == -1) { 61235537Sgber perrorf("Cannot open %s", dev); 62235537Sgber ret = 1; 63235537Sgber goto out; 64235537Sgber } 65235537Sgber 66235537Sgber if (ioctl(fd, NAND_IO_GET_CHIP_PARAM, &chip_params) == -1) { 67235537Sgber perrorf("Cannot ioctl(NAND_IO_GET_CHIP_PARAM)"); 68235537Sgber ret = 1; 69235537Sgber goto out; 70235537Sgber } 71235537Sgber 72235537Sgber block_size = chip_params.page_size * chip_params.pages_per_block; 73235537Sgber 74235537Sgber if (param_has_value(params, "page")) { 75235537Sgber pos = chip_params.page_size * param_get_int(params, "page"); 76235537Sgber mult = chip_params.page_size; 77235537Sgber } else if (param_has_value(params, "block")) { 78235537Sgber pos = block_size * param_get_int(params, "block"); 79235537Sgber mult = block_size; 80235537Sgber } else if (param_has_value(params, "pos")) { 81235537Sgber pos = param_get_int(params, "pos"); 82235537Sgber mult = 1; 83235537Sgber if (pos % chip_params.page_size) { 84235537Sgber fprintf(stderr, "Position must be page-size aligned!\n"); 85235537Sgber ret = 1; 86235537Sgber goto out; 87235537Sgber } 88235537Sgber } else { 89235537Sgber fprintf(stderr, "You must specify one of: 'block', 'page'," 90235537Sgber "'pos' arguments\n"); 91235537Sgber ret = 1; 92235537Sgber goto out; 93235537Sgber } 94235537Sgber 95235537Sgber if (!(param_has_value(params, "count"))) 96235537Sgber count = mult; 97235537Sgber else 98235537Sgber count = param_get_int(params, "count") * mult; 99235537Sgber 100235537Sgber if (!(buf = malloc(chip_params.page_size))) { 101235537Sgber perrorf("Cannot allocate buffer [size %x]", 102235537Sgber chip_params.page_size); 103235537Sgber ret = 1; 104235537Sgber goto out; 105235537Sgber } 106235537Sgber 107235537Sgber lseek(fd, pos, SEEK_SET); 108235537Sgber 109235537Sgber while (done < count) { 110235537Sgber if ((ret = read(fd, buf, chip_params.page_size)) != 111235537Sgber (int32_t)chip_params.page_size) { 112235537Sgber perrorf("read error (read %d bytes)", ret); 113235537Sgber goto out; 114235537Sgber } 115235537Sgber 116235537Sgber if (out_fd != -1) { 117235537Sgber done += ret; 118235537Sgber if ((ret = write(out_fd, buf, chip_params.page_size)) != 119235537Sgber (int32_t)chip_params.page_size) { 120235537Sgber perrorf("write error (written %d bytes)", ret); 121235537Sgber ret = 1; 122235537Sgber goto out; 123235537Sgber } 124235537Sgber } else { 125235537Sgber hexdumpoffset(buf, chip_params.page_size, done); 126235537Sgber done += ret; 127235537Sgber } 128235537Sgber } 129235537Sgber 130235537Sgberout: 131235537Sgber g_close(fd); 132235537Sgber if (out_fd != -1) 133235537Sgber close(out_fd); 134235537Sgber if (buf) 135235537Sgber free(buf); 136235537Sgber 137235537Sgber return (ret); 138235537Sgber} 139235537Sgber 140