6f7c735300
The NAND Flash environment consists of several distinct components: - NAND framework (drivers harness for NAND controllers and NAND chips) - NAND simulator (NANDsim) - NAND file system (NAND FS) - Companion tools and utilities - Documentation (manual pages) This work is still experimental. Please use with caution. Obtained from: Semihalf Supported by: FreeBSD Foundation, Juniper Networks
112 lines
2.9 KiB
C
112 lines
2.9 KiB
C
/*-
|
|
* Copyright (c) 2010-2012 Semihalf.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <fcntl.h>
|
|
#include <libgeom.h>
|
|
#include <sys/types.h>
|
|
#include <sys/disk.h>
|
|
#include <dev/nand/nand_dev.h>
|
|
#include "nandtool.h"
|
|
|
|
int nand_read_oob(struct cmd_param *params)
|
|
{
|
|
struct chip_param_io chip_params;
|
|
struct nand_oob_rw req;
|
|
char *dev, *out;
|
|
int fd = -1, fd_out = -1, ret = 0;
|
|
int page;
|
|
uint8_t *buf = NULL;
|
|
|
|
if ((page = param_get_int(params, "page")) < 0) {
|
|
fprintf(stderr, "You must supply valid 'page' argument.\n");
|
|
return (1);
|
|
}
|
|
|
|
if (!(dev = param_get_string(params, "dev"))) {
|
|
fprintf(stderr, "You must supply 'dev' argument.\n");
|
|
return (1);
|
|
}
|
|
|
|
if ((out = param_get_string(params, "out"))) {
|
|
if ((fd_out = open(out, O_WRONLY | O_CREAT)) == -1) {
|
|
perrorf("Cannot open %s", out);
|
|
ret = 1;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
if ((fd = g_open(dev, 1)) == -1) {
|
|
perrorf("Cannot open %s", dev);
|
|
ret = 1;
|
|
goto out;
|
|
}
|
|
|
|
if (ioctl(fd, NAND_IO_GET_CHIP_PARAM, &chip_params) == -1) {
|
|
perrorf("Cannot ioctl(NAND_IO_GET_CHIP_PARAM)");
|
|
ret = 1;
|
|
goto out;
|
|
}
|
|
|
|
buf = malloc(chip_params.oob_size);
|
|
if (buf == NULL) {
|
|
perrorf("Cannot allocate %d bytes\n", chip_params.oob_size);
|
|
ret = 1;
|
|
goto out;
|
|
}
|
|
|
|
req.page = page;
|
|
req.len = chip_params.oob_size;
|
|
req.data = buf;
|
|
|
|
if (ioctl(fd, NAND_IO_OOB_READ, &req) == -1) {
|
|
perrorf("Cannot read OOB from %s", dev);
|
|
ret = 1;
|
|
goto out;
|
|
}
|
|
|
|
if (fd_out != -1)
|
|
write(fd_out, buf, chip_params.oob_size);
|
|
else
|
|
hexdump(buf, chip_params.oob_size);
|
|
|
|
out:
|
|
close(fd_out);
|
|
|
|
if (fd != -1)
|
|
g_close(fd);
|
|
if (buf)
|
|
free(buf);
|
|
|
|
return (ret);
|
|
}
|
|
|