2fe0ea7324
If O_CREAT is given, open() needs a mode argument. Follow the umask by passing 0666. Reviewed by: imp MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D13607
142 lines
3.8 KiB
C
142 lines
3.8 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2010-2012 Semihalf.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <libgeom.h>
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#include <sys/disk.h>
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#include <dev/nand/nand_dev.h>
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#include "nandtool.h"
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int nand_read(struct cmd_param *params)
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{
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struct chip_param_io chip_params;
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int fd = -1, out_fd = -1, done = 0, ret = 0;
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char *dev, *out;
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int pos, count, mult, block_size;
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uint8_t *buf = NULL;
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if (!(dev = param_get_string(params, "dev"))) {
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fprintf(stderr, "You must specify 'dev' parameter\n");
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return (1);
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}
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if ((out = param_get_string(params, "out"))) {
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out_fd = open(out, O_WRONLY|O_CREAT, 0666);
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if (out_fd == -1) {
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perrorf("Cannot open %s for writing", out);
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return (1);
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}
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}
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if ((fd = g_open(dev, 1)) == -1) {
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perrorf("Cannot open %s", dev);
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ret = 1;
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goto out;
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}
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if (ioctl(fd, NAND_IO_GET_CHIP_PARAM, &chip_params) == -1) {
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perrorf("Cannot ioctl(NAND_IO_GET_CHIP_PARAM)");
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ret = 1;
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goto out;
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}
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block_size = chip_params.page_size * chip_params.pages_per_block;
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if (param_has_value(params, "page")) {
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pos = chip_params.page_size * param_get_int(params, "page");
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mult = chip_params.page_size;
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} else if (param_has_value(params, "block")) {
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pos = block_size * param_get_int(params, "block");
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mult = block_size;
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} else if (param_has_value(params, "pos")) {
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pos = param_get_int(params, "pos");
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mult = 1;
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if (pos % chip_params.page_size) {
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fprintf(stderr, "Position must be page-size aligned!\n");
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ret = 1;
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goto out;
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}
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} else {
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fprintf(stderr, "You must specify one of: 'block', 'page',"
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"'pos' arguments\n");
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ret = 1;
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goto out;
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}
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if (!(param_has_value(params, "count")))
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count = mult;
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else
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count = param_get_int(params, "count") * mult;
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if (!(buf = malloc(chip_params.page_size))) {
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perrorf("Cannot allocate buffer [size %x]",
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chip_params.page_size);
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ret = 1;
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goto out;
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}
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lseek(fd, pos, SEEK_SET);
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while (done < count) {
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if ((ret = read(fd, buf, chip_params.page_size)) !=
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(int32_t)chip_params.page_size) {
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perrorf("read error (read %d bytes)", ret);
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goto out;
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}
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if (out_fd != -1) {
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done += ret;
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if ((ret = write(out_fd, buf, chip_params.page_size)) !=
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(int32_t)chip_params.page_size) {
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perrorf("write error (written %d bytes)", ret);
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ret = 1;
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goto out;
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}
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} else {
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hexdumpoffset(buf, chip_params.page_size, done);
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done += ret;
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}
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}
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out:
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g_close(fd);
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if (out_fd != -1)
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close(out_fd);
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if (buf)
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free(buf);
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return (ret);
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}
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