1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
/*
* flash_info.c -- print info about a MTD device
*/
#define PROGRAM_NAME "flash_info"
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <time.h>
#include <sys/ioctl.h>
#include <sys/mount.h>
#include "common.h"
#include <mtd/mtd-user.h>
static void usage(int status)
{
fprintf(status ? stderr : stdout,
"Usage: %s <device> [devices]\n",
PROGRAM_NAME);
exit(status);
}
int main(int argc, char *argv[])
{
int fd, i, regcount;
if (argc < 2)
usage(1);
if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help"))
usage(0);
for (i = 1; i < argc; ++i) {
const char *dev = argv[i];
int r;
region_info_t reginfo;
/* Open and size the device */
fd = open(dev, O_RDONLY);
if (fd < 0) {
sys_errmsg("could not open: %s", dev);
continue;
}
if (ioctl(fd, MEMGETREGIONCOUNT, ®count))
continue;
printf("%s: %d erase regions\n", dev, regcount);
for (r = 0; r < regcount; ++r) {
reginfo.regionindex = r;
if (ioctl(fd, MEMGETREGIONINFO, ®info) == 0) {
printf("Region %d is at 0x%x with size 0x%x and "
"has 0x%x blocks\n", r, reginfo.offset,
reginfo.erasesize, reginfo.numblocks);
} else {
warnmsg("can not read region %d from a %d region device",
r, regcount);
}
}
}
return 0;
}
|
