Update kernel configuration and add profiles and per-profile kernel configuration...

[openwrt.git] / package / mtd / src / mtd.c

diff --git a/package/mtd/src/mtd.c b/package/mtd/src/mtd.c
index 18a73a0..761139f 100644 (file)
--- a/package/mtd/src/mtd.c
+++ b/package/mtd/src/mtd.c
@@ -46,21 +46,9 @@
 #include "mtd-api.h"
 #include "mtd.h"
 
-#ifdef target_brcm47xx
-#define target_brcm 1
-#endif
-
-#define TRX_MAGIC       0x30524448      /* "HDR0" */
 #define MAX_ARGS 8
-
-#define DEBUG
-
 #define JFFS2_DEFAULT_DIR      "" /* directory name without /, empty means root dir */
 
-#define SYSTYPE_UNKNOWN     0
-#define SYSTYPE_BROADCOM    1
-/* to be continued */
-
 struct trx_header {
        uint32_t magic;         /* "HDR0" */
        uint32_t len;           /* Length of file including header */
@@ -77,7 +65,7 @@ int quiet;
 int mtdsize = 0;
 int erasesize = 0;
 
-int mtd_open(const char *mtd)
+int mtd_open(const char *mtd, bool block)
 {
        FILE *fp;
        char dev[PATH_MAX];
@@ -88,9 +76,9 @@ int mtd_open(const char *mtd)
        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);
+                               snprintf(dev, sizeof(dev), "/dev/mtd%s/%d", (block ? "block" : ""), i);
                                if ((ret=open(dev, flags))<0) {
-                                       snprintf(dev, sizeof(dev), "/dev/mtd%d", i);
+                                       snprintf(dev, sizeof(dev), "/dev/mtd%s%d", (block ? "block" : ""), i);
                                        ret=open(dev, flags);
                                }
                                fclose(fp);
@@ -108,7 +96,7 @@ int mtd_check_open(const char *mtd)
        struct mtd_info_user mtdInfo;
        int fd;
 
-       fd = mtd_open(mtd);
+       fd = mtd_open(mtd, false);
        if(fd < 0) {
                fprintf(stderr, "Could not open mtd device: %s\n", mtd);
                return 0;
@@ -136,69 +124,25 @@ int mtd_erase_block(int fd, int offset)
                fprintf(stderr, "Erasing mtd failed.\n");
                exit(1);
        }
+       return 0;
 }
 
 int mtd_write_buffer(int fd, const char *buf, int offset, int length)
 {
        lseek(fd, offset, SEEK_SET);
        write(fd, buf, length);
+       return 0;
 }
 
 
-#ifdef target_brcm
-static int
-image_check_brcm(int imagefd, const char *mtd)
-{
-       struct trx_header *trx = (struct trx_header *) buf;
-       int fd;
-
-       if (strcmp(mtd, "linux") != 0)
-               return 1;
-       
-       buflen = read(imagefd, buf, 32);
-       if (buflen < 32) {
-               fprintf(stdout, "Could not get image header, file too small (%ld bytes)\n", buflen);
-               return 0;
-       }
-
-       if (trx->magic != TRX_MAGIC || trx->len < sizeof(struct trx_header)) {
-               if (quiet < 2) {
-                       fprintf(stderr, "Bad trx header\n");
-                       fprintf(stderr, "This is not the correct file format; refusing to flash.\n"
-                                       "Please specify the correct file or use -f to force.\n");
-               }
-               return 0;
-       }
-
-       /* check if image fits to mtd device */
-       fd = mtd_check_open(mtd);
-       if(fd < 0) {
-               fprintf(stderr, "Could not open mtd device: %s\n", mtd);
-               exit(1);
-       }
-
-       if(mtdsize < trx->len) {
-               fprintf(stderr, "Image too big for partition: %s\n", mtd);
-               close(fd);
-               return 0;
-       }       
-       
-       close(fd);
-       return 1;
-}
-#endif /* target_brcm */
-
 static int
 image_check(int imagefd, const char *mtd)
 {
-       int fd, systype;
-       size_t count;
-       char *c;
-       FILE *f;
-
+       int ret = 1;
 #ifdef target_brcm
-       return image_check_brcm(imagefd, mtd);
+       ret = trx_check(imagefd, mtd, buf, &buflen);
 #endif
+       return ret;
 }
 
 static int mtd_check(const char *mtd)
@@ -303,10 +247,8 @@ mtd_refresh(const char *mtd)
 static int
 mtd_write(int imagefd, const char *mtd)
 {
-       int fd, i, result;
-       size_t r, w, e;
-       struct erase_info_user mtdEraseInfo;
-       int ret = 0;
+       int fd, result;
+       ssize_t r, w, e;
 
        fd = mtd_check_open(mtd);
        if(fd < 0) {
@@ -323,11 +265,25 @@ mtd_write(int imagefd, const char *mtd)
 
        for (;;) {
                /* buffer may contain data already (from trx check) */
-               r = read(imagefd, buf + buflen, erasesize - buflen);
-               if (r < 0)
-                       break;
+               do {
+                       r = read(imagefd, buf + buflen, erasesize - buflen);
+                       if (r < 0) {
+                               if ((errno == EINTR) || (errno == EAGAIN))
+                                       continue;
+                               else {
+                                       perror("read");
+                                       break;
+                               }
+                       }
 
-               buflen += r;
+                       if (r == 0)
+                               break;
+
+                       buflen += r;
+               } while (buflen < erasesize);
+
+               if (buflen == 0)
+                       break;
 
                if (jffs2file) {
                        if (memcmp(buf, JFFS2_EOF, sizeof(JFFS2_EOF)) == 0) {
@@ -336,7 +292,7 @@ mtd_write(int imagefd, const char *mtd)
                                if (quiet < 2)
                                        fprintf(stderr, "\nAppending jffs2 data to from %s to %s...", jffs2file, mtd);
                                /* got an EOF marker - this is the place to add some jffs2 data */
-                               mtd_replace_jffs2(fd, e, jffs2file);
+                               mtd_replace_jffs2(mtd, fd, e, jffs2file);
                                goto done;
                        }
                        /* no EOF marker, make sure we figure out the last inode number
@@ -369,10 +325,6 @@ mtd_write(int imagefd, const char *mtd)
                }
                w += buflen;
 
-               /* not enough data - eof */
-               if (buflen < erasesize)
-                       break;
-
                buflen = 0;
        }
        if (!quiet)
@@ -425,15 +377,15 @@ static void do_reboot(void)
 
 int main (int argc, char **argv)
 {
-       int ch, i, boot, unlock, imagefd, force, unlocked;
-       char *erase[MAX_ARGS], *device;
+       int ch, i, boot, imagefd = 0, force, unlocked;
+       char *erase[MAX_ARGS], *device = NULL;
        enum {
                CMD_ERASE,
                CMD_WRITE,
                CMD_UNLOCK,
                CMD_REFRESH,
                CMD_JFFS2WRITE
-       } cmd;
+       } cmd = -1;
        
        erase[0] = NULL;
        boot = 0;