From 7d81790ced345585b1e647ca9d0f6678e7062fa4 Mon Sep 17 00:00:00 2001
From: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Date: Sat, 31 Oct 2015 11:12:01 +0800
Subject: mtd-utils: Restructure the mtd-utils source.

* There is no code modification in this commit, only moving
* the files to proper place.

The user tools looks a little messy as we place almost
the all tools in the root directory of mtd-utils. To make
it more clear, I propose to introduce the following structure
for our source code.

mtd-utils/
	|-- lib
	|-- include
	|-- misc-utils
	|-- jffsX-utils
	|-- nand-utils
	|-- nor-utils
	|-- ubi-utils
	|-- ubifs-utils
	`-- tests

Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 misc-utils/flash_otp_dump.c | 56 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 misc-utils/flash_otp_dump.c

(limited to 'misc-utils/flash_otp_dump.c')

diff --git a/misc-utils/flash_otp_dump.c b/misc-utils/flash_otp_dump.c
new file mode 100644
index 0000000..f0c0fb9
--- /dev/null
+++ b/misc-utils/flash_otp_dump.c
@@ -0,0 +1,56 @@
+/*
+ * flash_otp_dump.c -- display One-Time-Programm data
+ */
+
+#define PROGRAM_NAME "flash_otp_dump"
+
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/ioctl.h>
+
+#include <mtd/mtd-user.h>
+
+int main(int argc,char *argv[])
+{
+	int fd, val, i, offset, ret;
+	unsigned char buf[16];
+
+	if (argc != 3 || (strcmp(argv[1], "-f") && strcmp(argv[1], "-u"))) {
+		fprintf(stderr,"Usage: %s [ -f | -u ] <device>\n", PROGRAM_NAME);
+		return EINVAL;
+	}
+
+	fd = open(argv[2], O_RDONLY);
+	if (fd < 0) {
+		perror(argv[2]);
+		return errno;
+	}
+
+	val = argv[1][1] == 'f' ? MTD_OTP_FACTORY : MTD_OTP_USER;
+	ret = ioctl(fd, OTPSELECT, &val);
+	if (ret < 0) {
+		perror("OTPSELECT");
+		return errno;
+	}
+
+	printf("OTP %s data for %s\n",
+			argv[1][1] == 'f' ? "factory" : "user", argv[2]);
+	offset = 0;
+	while ((ret = read(fd, buf, sizeof(buf)))) {
+		if (ret < 0) {
+			perror("read()");
+			return errno;
+		}
+		printf("0x%04x:", offset);
+		for (i = 0; i < ret; i++)
+			printf(" %02x", buf[i]);
+		printf("\n");
+		offset += ret;
+	}
+
+	close(fd);
+	return 0;
+}
-- 
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