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-rw-r--r--misc-utils/flashcp.c93
1 files changed, 92 insertions, 1 deletions
diff --git a/misc-utils/flashcp.c b/misc-utils/flashcp.c
index d7b0a59..341c210 100644
--- a/misc-utils/flashcp.c
+++ b/misc-utils/flashcp.c
@@ -67,6 +67,7 @@
#define FLAG_FILENAME 0x04
#define FLAG_DEVICE 0x08
#define FLAG_ERASE_ALL 0x10
+#define FLAG_PARTITION 0x20
/* error levels */
#define LOG_NORMAL 1
@@ -96,6 +97,7 @@ static NORETURN void showusage(bool error)
"\n"
" -h | --help Show this help message\n"
" -v | --verbose Show progress reports\n"
+ " -p | --partition Only copy different block from file to device\n"
" -A | --erase-all Erases the whole device regardless of the image size\n"
" -V | --version Show version information and exit\n"
" <filename> File which you want to copy to flash\n"
@@ -181,10 +183,11 @@ int main (int argc,char *argv[])
for (;;) {
int option_index = 0;
- static const char *short_options = "hvAV";
+ static const char *short_options = "hvpAV";
static const struct option long_options[] = {
{"help", no_argument, 0, 'h'},
{"verbose", no_argument, 0, 'v'},
+ {"partition", no_argument, 0, 'p'},
{"erase-all", no_argument, 0, 'A'},
{"version", no_argument, 0, 'V'},
{0, 0, 0, 0},
@@ -205,6 +208,10 @@ int main (int argc,char *argv[])
flags |= FLAG_VERBOSE;
DEBUG("Got FLAG_VERBOSE\n");
break;
+ case 'p':
+ flags |= FLAG_PARTITION;
+ DEBUG("Got FLAG_PARTITION");
+ break;
case 'A':
flags |= FLAG_ERASE_ALL;
DEBUG("Got FLAG_ERASE_ALL\n");
@@ -257,6 +264,12 @@ int main (int argc,char *argv[])
exit (EXIT_FAILURE);
}
+ /* diff block flashcp */
+ if (flags & FLAG_PARTITION)
+ {
+ goto DIFF_BLOCKS;
+ }
+
/*****************************************************
* erase enough blocks so that we can write the file *
*****************************************************/
@@ -403,4 +416,82 @@ int main (int argc,char *argv[])
DEBUG("Verified %d / %lluk bytes\n",written,(unsigned long long)filestat.st_size);
exit (EXIT_SUCCESS);
+
+ /*********************************************
+ * Copy different blocks from file to device *
+ ********************************************/
+DIFF_BLOCKS:
+ safe_rewind (fil_fd,filename);
+ safe_rewind (dev_fd,device);
+ size = filestat.st_size;
+ i = mtd.erasesize;
+ erase.start = 0;
+ erase.length = (filestat.st_size + mtd.erasesize - 1) / mtd.erasesize;
+ erase.length *= mtd.erasesize;
+ written = 0;
+ unsigned long current_dev_block = 0;
+ int diffBlock = 0;
+ int blocks = erase.length / mtd.erasesize;
+ erase.length = mtd.erasesize;
+
+ if (flags & FLAG_VERBOSE)
+ log_printf (LOG_NORMAL,
+ "\rProcessing blocks: 0/%d (%d%%)", blocks, PERCENTAGE (0,blocks));
+ for (int s = 1; s <= blocks; s++)
+ {
+ if (size < mtd.erasesize) i = size;
+ if (flags & FLAG_VERBOSE)
+ log_printf (LOG_NORMAL,
+ "\rProcessing blocks: %d/%d (%d%%)", s, blocks, PERCENTAGE (s,blocks));
+
+ /* read from filename */
+ safe_read (fil_fd,filename,src,i,flags & FLAG_VERBOSE);
+
+ /* read from device */
+ current_dev_block = lseek(dev_fd, 0, SEEK_CUR);
+ safe_read (dev_fd,device,dest,i,flags & FLAG_VERBOSE);
+
+ /* compare buffers, if not the same, erase and write the block */
+ if (memcmp (src,dest,i))
+ {
+ diffBlock++;
+ /* erase block */
+ lseek(dev_fd, current_dev_block, SEEK_SET);
+ if (ioctl (dev_fd,MEMERASE,&erase) < 0)
+ {
+ log_printf (LOG_NORMAL,"\n");
+ log_printf (LOG_ERROR,
+ "While erasing blocks 0x%.8x-0x%.8x on %s: %m\n",
+ (unsigned int) erase.start,(unsigned int) (erase.start + erase.length),device);
+ exit (EXIT_FAILURE);
+ }
+
+ /* write to device */
+ lseek(dev_fd, current_dev_block, SEEK_SET);
+ result = write (dev_fd,src,i);
+ if (i != result)
+ {
+ if (flags & FLAG_VERBOSE) log_printf (LOG_NORMAL,"\n");
+ if (result < 0)
+ {
+ log_printf (LOG_ERROR,
+ "While writing data to 0x%.8lx-0x%.8lx on %s: %m\n",
+ written,written + i,device);
+ exit (EXIT_FAILURE);
+ }
+ log_printf (LOG_ERROR,
+ "Short write count returned while writing to x%.8zx-0x%.8zx on %s: %zu/%llu bytes written to flash\n",
+ written,written + i,device,written + result,(unsigned long long)filestat.st_size);
+ exit (EXIT_FAILURE);
+ }
+ }
+
+ erase.start += i;
+ written += i;
+ size -= i;
+ }
+
+ if (flags & FLAG_VERBOSE) log_printf (LOG_NORMAL, "\ndiff blocks: %d\n", diffBlock);
+
+ exit (EXIT_SUCCESS);
}