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authorDongsheng Yang <yangds.fnst@cn.fujitsu.com>2015-10-31 11:12:01 +0800
committerBrian Norris <computersforpeace@gmail.com>2015-11-11 14:38:40 -0800
commit7d81790ced345585b1e647ca9d0f6678e7062fa4 (patch)
tree02f61270c7a0fff7bb6b2e28f247a3d2fd6ff490 /misc-utils/flash_otp_info.c
parent344753f2aacb94d98ce238f81fc4a4b6ef6adea9 (diff)
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>
Diffstat (limited to 'misc-utils/flash_otp_info.c')
-rw-r--r--misc-utils/flash_otp_info.c65
1 files changed, 65 insertions, 0 deletions
diff --git a/misc-utils/flash_otp_info.c b/misc-utils/flash_otp_info.c
new file mode 100644
index 0000000..2061797
--- /dev/null
+++ b/misc-utils/flash_otp_info.c
@@ -0,0 +1,65 @@
+/*
+ * flash_otp_info.c -- print info about One-Time-Programm data
+ */
+
+#define PROGRAM_NAME "flash_otp_info"
+
+#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, ret;
+
+ 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;
+ }
+
+ ret = ioctl(fd, OTPGETREGIONCOUNT, &val);
+ if (ret < 0) {
+ perror("OTPGETREGIONCOUNT");
+ return errno;
+ }
+
+ printf("Number of OTP %s blocks on %s: %d\n",
+ argv[1][1] == 'f' ? "factory" : "user", argv[2], val);
+
+ if (val > 0) {
+ struct otp_info info[val];
+
+ ret = ioctl(fd, OTPGETREGIONINFO, &info);
+ if (ret < 0) {
+ perror("OTPGETREGIONCOUNT");
+ return errno;
+ }
+
+ for (i = 0; i < val; i++)
+ printf("block %2d: offset = 0x%04x "
+ "size = %2d bytes %s\n",
+ i, info[i].start, info[i].length,
+ info[i].locked ? "[locked]" : "[unlocked]");
+ }
+
+ close(fd);
+ return 0;
+}