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authorDavid Woodhouse <dwmw2@shinybook.infradead.org>2006-04-11 19:09:16 -0400
committerDavid Woodhouse <dwmw2@shinybook.infradead.org>2006-04-11 19:09:16 -0400
commit72212c137c574b564723327af751c4054c7cfca6 (patch)
tree13be2da9d4be695002d6ea9c396660c986e5fa5c /mtd_debug.c
Initial commit
Diffstat (limited to 'mtd_debug.c')
-rw-r--r--mtd_debug.c445
1 files changed, 445 insertions, 0 deletions
diff --git a/mtd_debug.c b/mtd_debug.c
new file mode 100644
index 0000000..8f5214e
--- /dev/null
+++ b/mtd_debug.c
@@ -0,0 +1,445 @@
+
+/*
+ * Copyright (c) 2d3D, Inc.
+ * Written by Abraham vd Merwe <abraham@2d3d.co.za>
+ * All rights reserved.
+ *
+ * $Id: mtd_debug.c,v 1.5 2004/05/05 11:57:55 dwmw2 Exp $
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the author nor the names of other contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <mtd/mtd-user.h>
+
+/*
+ * MEMGETINFO
+ */
+static int getmeminfo (int fd,struct mtd_info_user *mtd)
+{
+ return (ioctl (fd,MEMGETINFO,mtd));
+}
+
+/*
+ * MEMERASE
+ */
+static int memerase (int fd,struct erase_info_user *erase)
+{
+ return (ioctl (fd,MEMERASE,erase));
+}
+
+/*
+ * MEMGETREGIONCOUNT
+ * MEMGETREGIONINFO
+ */
+static int getregions (int fd,struct region_info_user *regions,int *n)
+{
+ int i,err;
+ err = ioctl (fd,MEMGETREGIONCOUNT,n);
+ if (err) return (err);
+ for (i = 0; i < *n; i++)
+ {
+ regions[i].regionindex = i;
+ err = ioctl (fd,MEMGETREGIONINFO,&regions[i]);
+ if (err) return (err);
+ }
+ return (0);
+}
+
+int erase_flash (int fd,u_int32_t offset,u_int32_t bytes)
+{
+ int err;
+ struct erase_info_user erase;
+ erase.start = offset;
+ erase.length = bytes;
+ err = memerase (fd,&erase);
+ if (err < 0)
+ {
+ perror ("MEMERASE");
+ return (1);
+ }
+ fprintf (stderr,"Erased %d bytes from address 0x%.8x in flash\n",bytes,offset);
+ return (0);
+}
+
+void printsize (u_int32_t x)
+{
+ int i;
+ static const char *flags = "KMGT";
+ printf ("%u ",x);
+ for (i = 0; x >= 1024 && flags[i] != '\0'; i++) x /= 1024;
+ i--;
+ if (i >= 0) printf ("(%u%c)",x,flags[i]);
+}
+
+int flash_to_file (int fd,u_int32_t offset,size_t len,const char *filename)
+{
+ u_int8_t *buf = NULL;
+ int outfd,err;
+ int size = len * sizeof (u_int8_t);
+ int n = len;
+
+ if (offset != lseek (fd,offset,SEEK_SET))
+ {
+ perror ("lseek()");
+ goto err0;
+ }
+ outfd = creat (filename,O_WRONLY);
+ if (outfd < 0)
+ {
+ perror ("creat()");
+ goto err1;
+ }
+
+retry:
+ if ((buf = (u_int8_t *) malloc (size)) == NULL)
+ {
+#define BUF_SIZE (64 * 1024 * sizeof (u_int8_t))
+ fprintf (stderr, "%s: malloc(%#x)\n", __FUNCTION__, size);
+ if (size != BUF_SIZE) {
+ size = BUF_SIZE;
+ fprintf (stderr, "%s: trying buffer size %#x\n", __FUNCTION__, size);
+ goto retry;
+ }
+ perror ("malloc()");
+ goto err0;
+ }
+ do {
+ if (n <= size)
+ size = n;
+ err = read (fd,buf,size);
+ if (err < 0)
+ {
+ fprintf (stderr, "%s: read, size %#x, n %#x\n", __FUNCTION__, size, n);
+ perror ("read()");
+ goto err2;
+ }
+ err = write (outfd,buf,size);
+ if (err < 0)
+ {
+ fprintf (stderr, "%s: write, size %#x, n %#x\n", __FUNCTION__, size, n);
+ perror ("write()");
+ goto err2;
+ }
+ if (err != size)
+ {
+ fprintf (stderr,"Couldn't copy entire buffer to %s. (%d/%d bytes copied)\n",filename,err,size);
+ goto err2;
+ }
+ n -= size;
+ } while (n > 0);
+
+ if (buf != NULL)
+ free (buf);
+ close (outfd);
+ printf ("Copied %d bytes from address 0x%.8x in flash to %s\n",len,offset,filename);
+ return (0);
+
+ err2:
+ close (outfd);
+ err1:
+ if (buf != NULL)
+ free (buf);
+ err0:
+ return (1);
+}
+
+int file_to_flash (int fd,u_int32_t offset,u_int32_t len,const char *filename)
+{
+ u_int8_t *buf = NULL;
+ FILE *fp;
+ int err;
+ int size = len * sizeof (u_int8_t);
+ int n = len;
+
+ if (offset != lseek (fd,offset,SEEK_SET))
+ {
+ perror ("lseek()");
+ return (1);
+ }
+ if ((fp = fopen (filename,"r")) == NULL)
+ {
+ perror ("fopen()");
+ return (1);
+ }
+retry:
+ if ((buf = (u_int8_t *) malloc (size)) == NULL)
+ {
+ fprintf (stderr, "%s: malloc(%#x) failed\n", __FUNCTION__, size);
+ if (size != BUF_SIZE) {
+ size = BUF_SIZE;
+ fprintf (stderr, "%s: trying buffer size %#x\n", __FUNCTION__, size);
+ goto retry;
+ }
+ perror ("malloc()");
+ fclose (fp);
+ return (1);
+ }
+ do {
+ if (n <= size)
+ size = n;
+ if (fread (buf,size,1,fp) != 1 || ferror (fp))
+ {
+ fprintf (stderr, "%s: fread, size %#x, n %#x\n", __FUNCTION__, size, n);
+ perror ("fread()");
+ free (buf);
+ fclose (fp);
+ return (1);
+ }
+ err = write (fd,buf,size);
+ if (err < 0)
+ {
+ fprintf (stderr, "%s: write, size %#x, n %#x\n", __FUNCTION__, size, n);
+ perror ("write()");
+ free (buf);
+ fclose (fp);
+ return (1);
+ }
+ n -= size;
+} while (n > 0);
+
+ if (buf != NULL)
+ free (buf);
+ fclose (fp);
+ printf ("Copied %d bytes from %s to address 0x%.8x in flash\n",len,filename,offset);
+ return (0);
+}
+
+int showinfo (int fd)
+{
+ int i,err,n;
+ struct mtd_info_user mtd;
+ static struct region_info_user region[1024];
+
+ err = getmeminfo (fd,&mtd);
+ if (err < 0)
+ {
+ perror ("MEMGETINFO");
+ return (1);
+ }
+
+ err = getregions (fd,region,&n);
+ if (err < 0)
+ {
+ perror ("MEMGETREGIONCOUNT");
+ return (1);
+ }
+
+ printf ("mtd.type = ");
+ switch (mtd.type)
+ {
+ case MTD_ABSENT:
+ printf ("MTD_ABSENT");
+ break;
+ case MTD_RAM:
+ printf ("MTD_RAM");
+ break;
+ case MTD_ROM:
+ printf ("MTD_ROM");
+ break;
+ case MTD_NORFLASH:
+ printf ("MTD_NORFLASH");
+ break;
+ case MTD_NANDFLASH:
+ printf ("MTD_NANDFLASH");
+ break;
+ case MTD_PEROM:
+ printf ("MTD_PEROM");
+ break;
+ case MTD_OTHER:
+ printf ("MTD_OTHER");
+ break;
+ case MTD_UNKNOWN:
+ printf ("MTD_UNKNOWN");
+ break;
+ default:
+ printf ("(unknown type - new MTD API maybe?)");
+ }
+
+ printf ("\nmtd.flags = ");
+ if (mtd.flags == MTD_CAP_ROM)
+ printf ("MTD_CAP_ROM");
+ else if (mtd.flags == MTD_CAP_RAM)
+ printf ("MTD_CAP_RAM");
+ else if (mtd.flags == MTD_CAP_NORFLASH)
+ printf ("MTD_CAP_NORFLASH");
+ else if (mtd.flags == MTD_CAP_NANDFLASH)
+ printf ("MTD_CAP_NANDFLASH");
+ else if (mtd.flags == MTD_WRITEABLE)
+ printf ("MTD_WRITEABLE");
+ else
+ {
+ int first = 1;
+ static struct
+ {
+ const char *name;
+ int value;
+ } flags[] =
+ {
+ { "MTD_CLEAR_BITS", MTD_CLEAR_BITS },
+ { "MTD_SET_BITS", MTD_SET_BITS },
+ { "MTD_ERASEABLE", MTD_ERASEABLE },
+ { "MTD_WRITEB_WRITEABLE", MTD_WRITEB_WRITEABLE },
+ { "MTD_VOLATILE", MTD_VOLATILE },
+ { "MTD_XIP", MTD_XIP },
+ { "MTD_OOB", MTD_OOB },
+ { "MTD_ECC", MTD_ECC },
+ { NULL, -1 }
+ };
+ for (i = 0; flags[i].name != NULL; i++)
+ if (mtd.flags & flags[i].value)
+ {
+ if (first)
+ {
+ printf (flags[i].name);
+ first = 0;
+ }
+ else printf (" | %s",flags[i].name);
+ }
+ }
+
+ printf ("\nmtd.size = ");
+ printsize (mtd.size);
+
+ printf ("\nmtd.erasesize = ");
+ printsize (mtd.erasesize);
+
+ printf ("\nmtd.oobblock = ");
+ printsize (mtd.oobblock);
+
+ printf ("\nmtd.oobsize = ");
+ printsize (mtd.oobsize);
+
+ printf ("\nmtd.ecctype = ");
+ switch (mtd.ecctype)
+ {
+ case MTD_ECC_NONE:
+ printf ("MTD_ECC_NONE");
+ break;
+ case MTD_ECC_RS_DiskOnChip:
+ printf ("MTD_ECC_RS_DiskOnChip");
+ break;
+ case MTD_ECC_SW:
+ printf ("MTD_ECC_SW");
+ break;
+ default:
+ printf ("(unknown ECC type - new MTD API maybe?)");
+ }
+
+ printf ("\n"
+ "regions = %d\n"
+ "\n",
+ n);
+
+ for (i = 0; i < n; i++)
+ {
+ printf ("region[%d].offset = 0x%.8x\n"
+ "region[%d].erasesize = ",
+ i,region[i].offset,i);
+ printsize (region[i].erasesize);
+ printf ("\nregion[%d].numblocks = %d\n"
+ "region[%d].regionindex = %d\n",
+ i,region[i].numblocks,
+ i,region[i].regionindex);
+ }
+ return (0);
+}
+
+void showusage (const char *progname)
+{
+ fprintf (stderr,
+ "usage: %s info <device>\n"
+ " %s read <device> <offset> <len> <dest-filename>\n"
+ " %s write <device> <offset> <len> <source-filename>\n"
+ " %s erase <device> <offset> <len>\n",
+ progname,
+ progname,
+ progname,
+ progname);
+ exit (1);
+}
+
+#define OPT_INFO 1
+#define OPT_READ 2
+#define OPT_WRITE 3
+#define OPT_ERASE 4
+
+int main (int argc,char *argv[])
+{
+ const char *progname;
+ int err = 0,fd,option = OPT_INFO;
+ int open_flag;
+ (progname = strrchr (argv[0],'/')) ? progname++ : (progname = argv[0]);
+
+ /* parse command-line options */
+ if (argc == 3 && !strcmp (argv[1],"info"))
+ option = OPT_INFO;
+ else if (argc == 6 && !strcmp (argv[1],"read"))
+ option = OPT_READ;
+ else if (argc == 6 && !strcmp (argv[1],"write"))
+ option = OPT_WRITE;
+ else if (argc == 5 && !strcmp (argv[1],"erase"))
+ option = OPT_ERASE;
+ else
+ showusage (progname);
+
+ /* open device */
+ open_flag = (option==OPT_INFO || option==OPT_READ) ? O_RDONLY : O_RDWR;
+ if ((fd = open (argv[2],O_SYNC | open_flag)) < 0)
+ {
+ perror ("open()");
+ exit (1);
+ }
+
+ switch (option)
+ {
+ case OPT_INFO:
+ showinfo (fd);
+ break;
+ case OPT_READ:
+ err = flash_to_file (fd,strtol (argv[3],NULL,0),strtol (argv[4],NULL,0),argv[5]);
+ break;
+ case OPT_WRITE:
+ err = file_to_flash (fd,strtol (argv[3],NULL,0),strtol (argv[4],NULL,0),argv[5]);
+ break;
+ case OPT_ERASE:
+ err = erase_flash (fd,strtol (argv[3],NULL,0),strtol (argv[4],NULL,0));
+ break;
+ }
+
+ /* close device */
+ if (close (fd) < 0)
+ perror ("close()");
+
+ exit (err);
+}
+