Import work done under project/nand (@235533) into head.

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

1 files changed, 86 insertions, 0 deletions

diff --git a/usr.sbin/nandtool/nand_info.c b/usr.sbin/nandtool/nand_info.c
new file mode 100644
index 000000000000..38fe010ae07c
--- /dev/null
+++ b/usr.sbin/nandtool/nand_info.c
@@ -0,0 +1,86 @@
+/*-
+ * 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 <stdint.h>
+#include <string.h>
+#include <libgeom.h>
+#include <sys/disk.h>
+#include <dev/nand/nand_dev.h>
+#include "nandtool.h"
+
+int nand_info(struct cmd_param *params)
+{
+	struct chip_param_io chip_params;
+	int fd = -1, ret = 0;
+	int block_size;
+	off_t chip_size, media_size;
+	const char *dev;
+
+	if ((dev = param_get_string(params, "dev")) == NULL) {
+		fprintf(stderr, "Please supply 'dev' parameter, eg. "
+		    "'dev=/dev/gnand0'\n");
+		return (1);
+	}
+
+	if ((fd = g_open(dev, 1)) == -1) {
+		perrorf("Cannot open %s", dev);
+		return (1);
+	}
+
+	if (ioctl(fd, NAND_IO_GET_CHIP_PARAM, &chip_params) == -1) {
+		perrorf("Cannot ioctl(NAND_IO_GET_CHIP_PARAM)");
+		ret = 1;
+		goto out;
+	}
+
+	if (ioctl(fd, DIOCGMEDIASIZE, &media_size) == -1) {
+		perrorf("Cannot ioctl(DIOCGMEDIASIZE)");
+		ret = 1;
+		goto out;
+	}
+
+	block_size = chip_params.page_size * chip_params.pages_per_block;
+	chip_size = block_size * chip_params.blocks;
+
+	printf("Device:\t\t\t%s\n", dev);
+	printf("Page size:\t\t%d bytes\n", chip_params.page_size);
+	printf("Block size:\t\t%d bytes (%d KB)\n", block_size,
+	    block_size / 1024);
+	printf("OOB size per page:\t%d bytes\n", chip_params.oob_size);
+	printf("Chip size:\t\t%jd MB\n", (uintmax_t)(chip_size / 1024 / 1024));
+	printf("Slice size:\t\t%jd MB\n",
+	    (uintmax_t)(media_size / 1024 / 1024));
+
+out:
+	g_close(fd);
+
+	return (ret);
+}