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author | Dongsheng Yang <yangds.fnst@cn.fujitsu.com> | 2015-10-31 11:12:01 +0800 |
---|---|---|
committer | Brian Norris <computersforpeace@gmail.com> | 2015-11-11 14:38:40 -0800 |
commit | 7d81790ced345585b1e647ca9d0f6678e7062fa4 (patch) | |
tree | 02f61270c7a0fff7bb6b2e28f247a3d2fd6ff490 /misc-utils/flash_otp_info.c | |
parent | 344753f2aacb94d98ce238f81fc4a4b6ef6adea9 (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.c | 65 |
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; +} |