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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
87 lines
2.7 KiB
C
87 lines
2.7 KiB
C
/*-
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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 <stdint.h>
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#include <string.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_info(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, ret = 0;
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int block_size;
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off_t chip_size, media_size;
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const char *dev;
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if ((dev = param_get_string(params, "dev")) == NULL) {
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fprintf(stderr, "Please supply 'dev' parameter, eg. "
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"'dev=/dev/gnand0'\n");
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return (1);
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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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return (1);
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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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if (ioctl(fd, DIOCGMEDIASIZE, &media_size) == -1) {
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perrorf("Cannot ioctl(DIOCGMEDIASIZE)");
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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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chip_size = block_size * chip_params.blocks;
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printf("Device:\t\t\t%s\n", dev);
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printf("Page size:\t\t%d bytes\n", chip_params.page_size);
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printf("Block size:\t\t%d bytes (%d KB)\n", block_size,
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block_size / 1024);
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printf("OOB size per page:\t%d bytes\n", chip_params.oob_size);
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printf("Chip size:\t\t%jd MB\n", (uintmax_t)(chip_size / 1024 / 1024));
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printf("Slice size:\t\t%jd MB\n",
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(uintmax_t)(media_size / 1024 / 1024));
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out:
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g_close(fd);
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return (ret);
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}
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