summaryrefslogtreecommitdiffstats
path: root/package/mtd/src/mtd.c
diff options
context:
space:
mode:
Diffstat (limited to 'package/mtd/src/mtd.c')
-rw-r--r--package/mtd/src/mtd.c295
1 files changed, 171 insertions, 124 deletions
diff --git a/package/mtd/src/mtd.c b/package/mtd/src/mtd.c
index 85b069f81..92018c23c 100644
--- a/package/mtd/src/mtd.c
+++ b/package/mtd/src/mtd.c
@@ -28,6 +28,7 @@
#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
+#include <signal.h>
#include <sys/ioctl.h>
#include <sys/syscall.h>
#include <fcntl.h>
@@ -43,7 +44,7 @@
#include <sys/reboot.h>
#include <linux/reboot.h>
-#include "mtd.h"
+#include "mtd-api.h"
#define TRX_MAGIC 0x30524448 /* "HDR0" */
#define BUFSIZE (16 * 1024)
@@ -51,6 +52,8 @@
#define DEBUG
+#define JFFS2_DEFAULT_DIR "tmp"
+
#define SYSTYPE_UNKNOWN 0
#define SYSTYPE_BROADCOM 1
/* to be continued */
@@ -63,16 +66,86 @@ struct trx_header {
uint32_t offsets[3]; /* Offsets of partitions from start of header */
};
-char buf[BUFSIZE];
-int buflen;
+static char buf[BUFSIZE];
+static char *imagefile;
+static int buflen;
int quiet;
+int mtdsize = 0;
+int erasesize = 0;
+
+int mtd_open(const char *mtd)
+{
+ FILE *fp;
+ char dev[PATH_MAX];
+ int i;
+ int ret;
+ int flags = O_RDWR | O_SYNC;
+
+ if ((fp = fopen("/proc/mtd", "r"))) {
+ while (fgets(dev, sizeof(dev), fp)) {
+ if (sscanf(dev, "mtd%d:", &i) && strstr(dev, mtd)) {
+ snprintf(dev, sizeof(dev), "/dev/mtd/%d", i);
+ if ((ret=open(dev, flags))<0) {
+ snprintf(dev, sizeof(dev), "/dev/mtd%d", i);
+ ret=open(dev, flags);
+ }
+ fclose(fp);
+ return ret;
+ }
+ }
+ fclose(fp);
+ }
+
+ return open(mtd, flags);
+}
+
+int mtd_check_open(const char *mtd)
+{
+ struct mtd_info_user mtdInfo;
+ int fd;
+
+ fd = mtd_open(mtd);
+ if(fd < 0) {
+ fprintf(stderr, "Could not open mtd device: %s\n", mtd);
+ return 0;
+ }
+
+ if(ioctl(fd, MEMGETINFO, &mtdInfo)) {
+ fprintf(stderr, "Could not get MTD device info from %s\n", mtd);
+ close(fd);
+ return 0;
+ }
+ mtdsize = mtdInfo.size;
+ erasesize = mtdInfo.erasesize;
+
+ return fd;
+}
+
+int mtd_erase_block(int fd, int offset)
+{
+ struct erase_info_user mtdEraseInfo;
+
+ mtdEraseInfo.start = offset;
+ mtdEraseInfo.length = erasesize;
+ ioctl(fd, MEMUNLOCK, &mtdEraseInfo);
+ if (ioctl (fd, MEMERASE, &mtdEraseInfo) < 0) {
+ fprintf(stderr, "Erasing mtd failed.\n");
+ exit(1);
+ }
+}
+
+int mtd_write_buffer(int fd, char *buf, int offset, int length)
+{
+ lseek(fd, offset, SEEK_SET);
+ write(fd, buf, length);
+}
+
#ifdef target_brcm
-int
+static int
image_check_brcm(int imagefd, const char *mtd)
{
struct trx_header *trx = (struct trx_header *) buf;
- struct mtd_info_user mtdInfo;
int fd;
if (strcmp(mtd, "linux") != 0)
@@ -94,18 +167,13 @@ image_check_brcm(int imagefd, const char *mtd)
}
/* check if image fits to mtd device */
- fd = mtd_open(mtd, O_RDWR | O_SYNC);
+ fd = mtd_check_open(mtd);
if(fd < 0) {
fprintf(stderr, "Could not open mtd device: %s\n", mtd);
exit(1);
}
- if(ioctl(fd, MEMGETINFO, &mtdInfo)) {
- fprintf(stderr, "Could not get MTD device info from %s\n", mtd);
- exit(1);
- }
-
- if(mtdInfo.size < trx->len) {
+ if(mtdsize < trx->len) {
fprintf(stderr, "Image too big for partition: %s\n", mtd);
close(fd);
return 0;
@@ -116,7 +184,7 @@ image_check_brcm(int imagefd, const char *mtd)
}
#endif /* target_brcm */
-int
+static int
image_check(int imagefd, const char *mtd)
{
int fd, systype;
@@ -129,48 +197,35 @@ image_check(int imagefd, const char *mtd)
#endif
}
-int mtd_check(char *mtd)
+static int mtd_check(const char *mtd)
{
- struct mtd_info_user mtdInfo;
int fd;
- fd = mtd_open(mtd, O_RDWR | O_SYNC);
- if(fd < 0) {
- fprintf(stderr, "Could not open mtd device: %s\n", mtd);
+ fd = mtd_check_open(mtd);
+ if (!fd)
return 0;
- }
-
- if(ioctl(fd, MEMGETINFO, &mtdInfo)) {
- fprintf(stderr, "Could not get MTD device info from %s\n", mtd);
- close(fd);
- return 0;
- }
close(fd);
return 1;
}
-int
+static int
mtd_unlock(const char *mtd)
{
int fd;
- struct mtd_info_user mtdInfo;
struct erase_info_user mtdLockInfo;
- fd = mtd_open(mtd, O_RDWR | O_SYNC);
- if(fd < 0) {
+ fd = mtd_check_open(mtd);
+ if(fd <= 0) {
fprintf(stderr, "Could not open mtd device: %s\n", mtd);
exit(1);
}
- if(ioctl(fd, MEMGETINFO, &mtdInfo)) {
- fprintf(stderr, "Could not get MTD device info from %s\n", mtd);
- close(fd);
- exit(1);
- }
+ if (quiet < 2)
+ fprintf(stderr, "Unlocking %s ...\n", mtd);
mtdLockInfo.start = 0;
- mtdLockInfo.length = mtdInfo.size;
+ mtdLockInfo.length = mtdsize;
if(ioctl(fd, MEMUNLOCK, &mtdLockInfo)) {
close(fd);
return 0;
@@ -180,56 +235,26 @@ mtd_unlock(const char *mtd)
return 0;
}
-int
-mtd_open(const char *mtd, int flags)
-{
- FILE *fp;
- char dev[PATH_MAX];
- int i;
- int ret;
-
- if ((fp = fopen("/proc/mtd", "r"))) {
- while (fgets(dev, sizeof(dev), fp)) {
- if (sscanf(dev, "mtd%d:", &i) && strstr(dev, mtd)) {
- snprintf(dev, sizeof(dev), "/dev/mtd/%d", i);
- if ((ret=open(dev, flags))<0) {
- snprintf(dev, sizeof(dev), "/dev/mtd%d", i);
- ret=open(dev, flags);
- }
- fclose(fp);
- return ret;
- }
- }
- fclose(fp);
- }
-
- return open(mtd, flags);
-}
-
-int
+static int
mtd_erase(const char *mtd)
{
int fd;
- struct mtd_info_user mtdInfo;
struct erase_info_user mtdEraseInfo;
- fd = mtd_open(mtd, O_RDWR | O_SYNC);
- if(fd < 0) {
- fprintf(stderr, "Could not open mtd device: %s\n", mtd);
- exit(1);
- }
+ if (quiet < 2)
+ fprintf(stderr, "Erasing %s ...\n", mtd);
- if(ioctl(fd, MEMGETINFO, &mtdInfo)) {
- fprintf(stderr, "Could not get MTD device info from %s\n", mtd);
- close(fd);
+ fd = mtd_check_open(mtd);
+ if(fd <= 0) {
+ fprintf(stderr, "Could not open mtd device: %s\n", mtd);
exit(1);
}
- mtdEraseInfo.length = mtdInfo.erasesize;
+ mtdEraseInfo.length = erasesize;
for (mtdEraseInfo.start = 0;
- mtdEraseInfo.start < mtdInfo.size;
- mtdEraseInfo.start += mtdInfo.erasesize) {
+ mtdEraseInfo.start < mtdsize;
+ mtdEraseInfo.start += erasesize) {
ioctl(fd, MEMUNLOCK, &mtdEraseInfo);
if(ioctl(fd, MEMERASE, &mtdEraseInfo))
@@ -241,46 +266,50 @@ mtd_erase(const char *mtd)
}
-int
+static int
mtd_refresh(const char *mtd)
{
int fd;
- fd = mtd_open(mtd, O_RDWR | O_SYNC);
- if(fd < 0) {
+ if (quiet < 2)
+ fprintf(stderr, "Refreshing mtd partition %s ... ", mtd);
+
+ fd = mtd_check_open(mtd);
+ if(fd <= 0) {
fprintf(stderr, "Could not open mtd device: %s\n", mtd);
exit(1);
}
+
if (ioctl(fd, MTDREFRESH, NULL)) {
fprintf(stderr, "Failed to refresh the MTD device\n");
close(fd);
exit(1);
}
close(fd);
+
+ if (quiet < 2)
+ fprintf(stderr, "\n");
+
return 0;
}
-int
+static int
mtd_write(int imagefd, const char *mtd)
{
int fd, i, result;
size_t r, w, e;
- struct mtd_info_user mtdInfo;
struct erase_info_user mtdEraseInfo;
int ret = 0;
- fd = mtd_open(mtd, O_RDWR | O_SYNC);
+ fd = mtd_check_open(mtd);
if(fd < 0) {
fprintf(stderr, "Could not open mtd device: %s\n", mtd);
exit(1);
}
-
- if(ioctl(fd, MEMGETINFO, &mtdInfo)) {
- fprintf(stderr, "Could not get MTD device info from %s\n", mtd);
- close(fd);
- exit(1);
- }
+ if (quiet < 2)
+ fprintf(stderr, "Writing from %s to %s ... ", imagefile, mtd);
+
r = w = e = 0;
if (!quiet)
fprintf(stderr, " [ ]");
@@ -296,17 +325,13 @@ mtd_write(int imagefd, const char *mtd)
/* need to erase the next block before writing data to it */
while (w > e) {
- mtdEraseInfo.start = e;
- mtdEraseInfo.length = mtdInfo.erasesize;
-
if (!quiet)
fprintf(stderr, "\b\b\b[e]");
+
+ mtd_erase_block(fd, e);
+
/* erase the chunk */
- if (ioctl (fd,MEMERASE,&mtdEraseInfo) < 0) {
- fprintf(stderr, "Erasing mtd failed: %s\n", mtd);
- exit(1);
- }
- e += mtdInfo.erasesize;
+ e += erasesize;
}
if (!quiet)
@@ -327,11 +352,14 @@ mtd_write(int imagefd, const char *mtd)
if (!quiet)
fprintf(stderr, "\b\b\b\b");
+ if (quiet < 2)
+ fprintf(stderr, "\n");
+
close(fd);
return 0;
}
-void usage(void)
+static void usage(void)
{
fprintf(stderr, "Usage: mtd [<options> ...] <command> [<arguments> ...] <device>\n\n"
"The device is in the format of mtdX (eg: mtd4) or its label.\n"
@@ -340,26 +368,44 @@ void usage(void)
" refresh refresh mtd partition\n"
" erase erase all data on device\n"
" write <imagefile>|- write <imagefile> (use - for stdin) to device\n"
+ " jffs2write <file> append <file> to the jffs2 partition on the device\n"
"Following options are available:\n"
" -q quiet mode (once: no [w] on writing,\n"
" twice: no status messages)\n"
" -r reboot after successful command\n"
" -f force write without trx checks\n"
- " -e <device> erase <device> before executing the command\n\n"
+ " -e <device> erase <device> before executing the command\n"
+ " -d <name> directory for jffs2write, defaults to \"tmp\"\n"
+ "\n"
"Example: To write linux.trx to mtd4 labeled as linux and reboot afterwards\n"
" mtd -r write linux.trx linux\n\n");
exit(1);
}
+static void do_reboot(void)
+{
+ fprintf(stderr, "Rebooting ...\n");
+ fflush(stderr);
+
+ /* try regular reboot method first */
+ system("/sbin/reboot");
+ sleep(2);
+
+ /* if we're still alive at this point, force the kernel to reboot */
+ syscall(SYS_reboot,LINUX_REBOOT_MAGIC1,LINUX_REBOOT_MAGIC2,LINUX_REBOOT_CMD_RESTART,NULL);
+}
+
int main (int argc, char **argv)
{
int ch, i, boot, unlock, imagefd, force, unlocked;
- char *erase[MAX_ARGS], *device, *imagefile;
+ char *erase[MAX_ARGS], *device;
+ char *jffs2dir = JFFS2_DEFAULT_DIR;
enum {
CMD_ERASE,
CMD_WRITE,
CMD_UNLOCK,
- CMD_REFRESH
+ CMD_REFRESH,
+ CMD_JFFS2WRITE
} cmd;
erase[0] = NULL;
@@ -368,7 +414,7 @@ int main (int argc, char **argv)
buflen = 0;
quiet = 0;
- while ((ch = getopt(argc, argv, "frqe:")) != -1)
+ while ((ch = getopt(argc, argv, "frqe:d:")) != -1)
switch (ch) {
case 'f':
force = 1;
@@ -387,7 +433,9 @@ int main (int argc, char **argv)
erase[i++] = optarg;
erase[i] = NULL;
break;
-
+ case 'd':
+ jffs2dir = optarg;
+ break;
case '?':
default:
usage();
@@ -434,6 +482,15 @@ int main (int argc, char **argv)
exit(1);
}
}
+ } else if ((strcmp(argv[0], "jffs2write") == 0) && (argc == 3)) {
+ cmd = CMD_JFFS2WRITE;
+ device = argv[2];
+
+ imagefile = argv[1];
+ if (!mtd_check(device)) {
+ fprintf(stderr, "Can't open device for writing!\n");
+ exit(1);
+ }
} else {
usage();
}
@@ -443,53 +500,43 @@ int main (int argc, char **argv)
i = 0;
unlocked = 0;
while (erase[i] != NULL) {
- if (quiet < 2)
- fprintf(stderr, "Unlocking %s ...\n", erase[i]);
mtd_unlock(erase[i]);
- if (quiet < 2)
- fprintf(stderr, "Erasing %s ...\n", erase[i]);
mtd_erase(erase[i]);
if (strcmp(erase[i], device) == 0)
unlocked = 1;
i++;
}
- if (!unlocked) {
- if (quiet < 2)
- fprintf(stderr, "Unlocking %s ...\n", device);
- mtd_unlock(device);
- }
switch (cmd) {
case CMD_UNLOCK:
+ if (!unlocked)
+ mtd_unlock(device);
break;
case CMD_ERASE:
- if (quiet < 2)
- fprintf(stderr, "Erasing %s ...\n", device);
+ if (!unlocked)
+ mtd_unlock(device);
mtd_erase(device);
break;
case CMD_WRITE:
- if (quiet < 2)
- fprintf(stderr, "Writing from %s to %s ... ", imagefile, device);
+ if (!unlocked)
+ mtd_unlock(device);
mtd_write(imagefd, device);
- if (quiet < 2)
- fprintf(stderr, "\n");
+ break;
+ case CMD_JFFS2WRITE:
+ if (!unlocked)
+ mtd_unlock(device);
+ mtd_write_jffs2(device, imagefile, jffs2dir);
break;
case CMD_REFRESH:
- if (quiet < 2)
- fprintf(stderr, "Refreshing mtd partition %s ... ");
mtd_refresh(device);
- if (quiet < 2)
- fprintf(stderr, "\n");
break;
}
sync();
- if (boot) {
- fprintf(stderr, "Rebooting ...\n");
- fflush(stderr);
- syscall(SYS_reboot,LINUX_REBOOT_MAGIC1,LINUX_REBOOT_MAGIC2,LINUX_REBOOT_CMD_RESTART,NULL);
- }
+ if (boot)
+ do_reboot();
+
return 0;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-05 05:28:02 +0000