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, 111 insertions, 0 deletions

diff --git a/usr.sbin/nandtool/nand_readoob.c b/usr.sbin/nandtool/nand_readoob.c
new file mode 100644
index 0000000..37fd14b
--- /dev/null
+++ b/usr.sbin/nandtool/nand_readoob.c
@@ -0,0 +1,111 @@
+/*-
+ * 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);
+}
+