add support for netgear dg834 and the almost identical sphairon jdr454wb: new images, automatic boot loader patcher, updated flash script (dlink.pl renamed to adam2flash.pl) - Thanks to Jonathan McDowell (Noodles)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@3221 3c298f89-4303-0410-b956-a3cf2f4a3e73

10 files changed, 471 insertions, 2 deletions

diff --git a/target/linux/image/ar7/Makefile b/target/linux/image/ar7/Makefile
index 38fce6bdfc..3a803cbd8b 100644
--- a/target/linux/image/ar7/Makefile
+++ b/target/linux/image/ar7/Makefile
@@ -83,6 +83,19 @@ $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(FS)-$(1).bin: $(BIN_DIR)/openwrt-$(BOARD
 install: $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(FS)-$(1).bin
 endef
 
+define sercomm_template
+$(BIN_DIR)/openwrt-$(1)-$(KERNEL)-$(FS).bin: $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(FS).bin
+	cat sercomm/adam2.bin "$$^" > "$$@.tmp"
+	dd if=sercomm/$(1) of="$$@.tmp" bs=$$$$((0x3e0000 - 80)) seek=1 conv=notrunc
+	$(STAGING_DIR)/bin/dgfirmware -f -w "$$@" "$$@.tmp"
+	rm -f "$$@.tmp"
+
+install: $(BIN_DIR)/openwrt-$(1)-$(KERNEL)-$(FS).bin
+endef
+
+$(eval $(call sercomm_template,dg834))
+$(eval $(call sercomm_template,jdr454wb))
+
 $(eval $(call pattern_template,AG1B))
 $(eval $(call pattern_template,WA22))
 $(eval $(call pattern_template,WAG2))
diff --git a/target/linux/image/ar7/sercomm/adam2.bin b/target/linux/image/ar7/sercomm/adam2.bin
new file mode 100644
index 0000000000..d4aa0cd2d3
--- /dev/null
+++ b/target/linux/image/ar7/sercomm/adam2.bin
diff --git a/target/linux/image/ar7/sercomm/dg834 b/target/linux/image/ar7/sercomm/dg834
new file mode 100644
index 0000000000..61fe336e85
--- /dev/null
+++ b/target/linux/image/ar7/sercomm/dg834
diff --git a/target/linux/image/ar7/sercomm/jdr454wb b/target/linux/image/ar7/sercomm/jdr454wb
new file mode 100644
index 0000000000..821ff1c1af
--- /dev/null
+++ b/target/linux/image/ar7/sercomm/jdr454wb
diff --git a/target/linux/package/base-files/Makefile b/target/linux/package/base-files/Makefile
index 637904c2e8..cf72eabdac 100644
--- a/target/linux/package/base-files/Makefile
+++ b/target/linux/package/base-files/Makefile
@@ -15,8 +15,21 @@ $(PKG_BUILD_DIR)/.prepared:
 	mkdir -p $(PKG_BUILD_DIR)
 	touch $@
 
+ifeq ($(BOARD),ar7)
+$(PKG_BUILD_DIR)/adam2patcher: src/adam2patcher.c
+	$(TARGET_CC) -o $@ $<
+
+$(PKG_BUILD_DIR)/.built: $(PKG_BUILD_DIR)/adam2patcher
+
+$(IDIR_OPENWRT)/sbin/adam2patcher: $(PKG_BUILD_DIR)/adam2patcher
+	mkdir -p $(IDIR_OPENWRT)/sbin
+	$(CP) $(PKG_BUILD_DIR)/adam2patcher $(IDIR_OPENWRT)/sbin
+
+$(IPKG_OPENWRT): $(IDIR_OPENWRT)/sbin/adam2patcher
+endif
+
 ifeq ($(BOARD),brcm)
-$(PKG_BUILD_DIR)/jffs2root: jffs2root.c
+$(PKG_BUILD_DIR)/jffs2root: src/jffs2root.c
 	$(TARGET_CC) -o $@ $<
 
 $(PKG_BUILD_DIR)/.built: $(PKG_BUILD_DIR)/jffs2root
diff --git a/target/linux/package/base-files/files/ar7-2.4/etc/init.d/S00adam2 b/target/linux/package/base-files/files/ar7-2.4/etc/init.d/S00adam2
new file mode 100755
index 0000000000..0ca4c01453
--- /dev/null
+++ b/target/linux/package/base-files/files/ar7-2.4/etc/init.d/S00adam2
@@ -0,0 +1,8 @@
+#!/bin/sh
+# ADAM2 patcher for Netgear DG834 and compatible
+MD5="$(md5sum /dev/mtdblock/0  | awk '{print $1}')"
+[ "$MD5" = "0530bfdf00ec155f4182afd70da028c1" ] && {
+	mtd unlock adam2
+	/sbin/adam2patcher /dev/mtdblock/0
+}
+rm -f /etc/init.d/S00adam2 /sbin/adam2patcher >&- 2>&-
diff --git a/target/linux/package/base-files/src/adam2patcher.c b/target/linux/package/base-files/src/adam2patcher.c
new file mode 100644
index 0000000000..25a78074a6
--- /dev/null
+++ b/target/linux/package/base-files/src/adam2patcher.c
@@ -0,0 +1,59 @@
+/*
+ * patcher.c - ADAM2 patcher for Netgear DG834 (and compatible)
+ *
+ * Copyright (C) 2006 Felix Fietkau
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <stdint.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <string.h>
+
+#include <sys/ioctl.h>
+
+int main(int argc, char **argv)
+{
+	int fd;
+	char *ptr;
+	uint32_t *i;
+
+	if (argc != 2) {
+		fprintf(stderr, "Usage: %s <filename>\n", argv[0]);
+		exit(1);
+	}
+
+	if (((fd = open(argv[1], O_RDWR)) < 0)
+			|| ((ptr = mmap(0, 128 * 1024, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0)) == (void *) (-1))) {
+		fprintf(stderr, "Can't open file\n");
+		exit(1);
+	}
+
+	i = (uint32_t *) &ptr[0x3944];
+	if (*i == 0x0c000944) {
+		fprintf(stderr, "Unpatched ADAM2 detected. Patching... ");
+		*i = 0x00000000;
+		msync(i, sizeof(*i), MS_SYNC|MS_INVALIDATE);
+		fprintf(stderr, "done!\n");
+	} else if (*i == 0x00000000) {
+		fprintf(stderr, "Patched ADAM2 detected.\n");
+	} else {
+		fprintf(stderr, "Unknown ADAM2 detected. Can't patch!\n");
+	}
+
+	close(fd);		
+}
diff --git a/target/linux/package/base-files/jffs2root.c b/target/linux/package/base-files/src/jffs2root.c
index 14662fc945..14662fc945 100644
--- a/target/linux/package/base-files/jffs2root.c
+++ b/target/linux/package/base-files/src/jffs2root.c
diff --git a/target/utils/Makefile b/target/utils/Makefile
index 753db53deb..5b0f2470b4 100644
--- a/target/utils/Makefile
+++ b/target/utils/Makefile
@@ -1,6 +1,6 @@
 include $(TOPDIR)/rules.mk
 
-TARGETS := addpattern trx motorola-bin
+TARGETS := addpattern trx motorola-bin dgfirmware
 
 UTILS_BUILD_DIR:=$(BUILD_DIR)/target-utils
 
diff --git a/target/utils/src/dgfirmware.c b/target/utils/src/dgfirmware.c
new file mode 100644
index 0000000000..5ff3b69646
--- /dev/null
+++ b/target/utils/src/dgfirmware.c
@@ -0,0 +1,376 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+
+#define IMG_SIZE     0x3e0000
+
+#define KERNEL_START 0x020000
+#define KERNEL_SIZE  0x0b0000
+
+#define ROOTFS_START 0x0d0000
+#define ROOTFS_SIZE  0x30ffb2
+
+char* app_name;
+
+
+
+
+void print_usage(void)
+{
+  fprintf(stderr, "usage: dgfirmware [<opts>] <img>\n");
+  fprintf(stderr, "  <img>               firmware image filename\n");
+  fprintf(stderr, "  <opts>  -h          print this message\n");
+  fprintf(stderr, "          -f          fix the checksum\n");
+  fprintf(stderr, "          -x  <file>  extract the rootfs file to <file>\n");
+  fprintf(stderr, "          -xk <file>  extract the kernel to <file>\n");
+  fprintf(stderr, "          -m  <file>  merge in rootfs fil\e from <file>\n");
+  fprintf(stderr, "          -k  <file>  merge in kernel from <file>\n");
+  fprintf(stderr, "          -w  <file>  write back the modified firmware\n");
+}
+
+
+unsigned char* read_img(const char *fname)
+{
+  FILE *fp;
+  int size;
+  unsigned char *img;
+
+  fp = fopen(fname, "rb");
+  if (fp == NULL) {
+    perror(app_name);
+    exit(-1);
+  }
+
+  fseek(fp, 0, SEEK_END);
+  size = ftell(fp);
+  
+  if (size != IMG_SIZE) {
+    fprintf(stderr, "%s: image file has wrong size\n", app_name);
+    fclose(fp);
+    exit(-1);
+  }
+
+  rewind(fp);
+
+  img = malloc(IMG_SIZE);
+  if (img == NULL) {
+    perror(app_name);
+    fclose(fp);
+    exit(-1);
+  }
+
+  if (fread(img, 1, IMG_SIZE, fp) != IMG_SIZE) {
+    fprintf(stderr, "%s: can't read image file\n", app_name);
+    fclose(fp);
+    exit(-1);
+  }
+
+  fclose(fp);
+  return img;
+}
+
+
+void write_img(unsigned char* img, const char *fname)
+{
+  FILE *fp;
+
+  fp = fopen(fname, "wb");
+  if (fp == NULL) {
+    perror(app_name);
+    exit(-1);
+  }
+
+  if (fwrite(img, 1, IMG_SIZE, fp) != IMG_SIZE) {
+    fprintf(stderr, "%s: can't write image file\n", app_name);
+    fclose(fp);
+    exit(-1);
+  }
+}
+
+
+void write_rootfs(unsigned char* img, const char *fname)
+{
+  FILE *fp;
+
+  fp = fopen(fname, "wb");
+  if (fp == NULL) {
+    perror(app_name);
+    exit(-1);
+  }
+  
+  if (fwrite(img+ROOTFS_START, 1, ROOTFS_SIZE, fp) != ROOTFS_SIZE) {
+    fprintf(stderr, "%s: can't write image file\n", app_name);
+    fclose(fp);
+    exit(-1);
+  }
+}
+
+
+void write_kernel(unsigned char* img, const char *fname)
+{
+  FILE *fp;
+
+  fp = fopen(fname, "wb");
+  if (fp == NULL) {
+    perror(app_name);
+    exit(-1);
+  }
+  
+  if (fwrite(img+KERNEL_START, 1, KERNEL_SIZE, fp) != KERNEL_SIZE) {
+    fprintf(stderr, "%s: can't write kernel file\n", app_name);
+    fclose(fp);
+    exit(-1);
+  }
+}
+
+
+unsigned char* read_rootfs(unsigned char* img, const char *fname)
+{
+  FILE *fp;
+  int size;
+  int i;
+
+  for (i=ROOTFS_START; i<ROOTFS_START+ROOTFS_SIZE; i++)
+    img[i] = 0xff;
+
+  fp = fopen(fname, "rb");
+  if (fp == NULL) {
+    perror(app_name);
+    exit(-1);
+  }
+
+  fseek(fp, 0, SEEK_END);
+  size = ftell(fp);
+  
+  if (size > ROOTFS_SIZE) {
+    fprintf(stderr, "%s: rootfs image file is too big\n", app_name);
+    fclose(fp);
+    exit(-1);
+  }
+
+  rewind(fp);
+
+  if (fread(img+ROOTFS_START, 1, size, fp) != size) {
+    fprintf(stderr, "%s: can't read rootfs image file\n", app_name);
+    fclose(fp);
+    exit(-1);
+  }
+
+  fclose(fp);
+  return img;
+}
+
+
+unsigned char* read_kernel(unsigned char* img, const char *fname)
+{
+  FILE *fp;
+  int size;
+  int i;
+
+  for (i=KERNEL_START; i<KERNEL_START+KERNEL_SIZE; i++)
+    img[i] = 0xff;
+
+  fp = fopen(fname, "rb");
+  if (fp == NULL) {
+    perror(app_name);
+    exit(-1);
+  }
+
+  fseek(fp, 0, SEEK_END);
+  size = ftell(fp);
+  
+  if (size > KERNEL_SIZE) {
+    fprintf(stderr, "%s: kernel binary file is too big\n", app_name);
+    fclose(fp);
+    exit(-1);
+  }
+
+  rewind(fp);
+
+  if (fread(img+KERNEL_START, 1, size, fp) != size) {
+    fprintf(stderr, "%s: can't read kernel file\n", app_name);
+    fclose(fp);
+    exit(-1);
+  }
+
+  fclose(fp);
+  return img;
+}
+
+
+int get_checksum(unsigned char* img)
+{
+  short unsigned s;
+
+  s = img[0x3dfffc] + (img[0x3dfffd]<<8);
+
+  return s;
+}
+
+
+void set_checksum(unsigned char*img, unsigned short sum)
+{
+  img[0x3dfffc] = sum & 0xff;
+  img[0x3dfffd] = (sum>>8) & 0xff;
+}
+
+
+int compute_checksum(unsigned char* img)
+{
+  int i;
+  short s=0;
+
+  for (i=0; i<0x3dfffc; i++)
+    s += img[i];
+
+  return s;
+}
+
+
+int main(int argc, char* argv[])
+{
+  char *img_fname     = NULL;
+  char *rootfs_fname  = NULL;
+  char *kernel_fname  = NULL;
+  char *new_img_fname = NULL;
+
+  int do_fix_checksum = 0;
+  int do_write        = 0;
+  int do_write_rootfs = 0;
+  int do_read_rootfs  = 0;
+  int do_write_kernel = 0;
+  int do_read_kernel  = 0;
+
+  int i;
+  unsigned char *img;
+  unsigned short img_checksum;
+  unsigned short real_checksum;
+
+  app_name = argv[0];
+
+  for (i=1; i<argc; i++) {
+    if (!strcmp(argv[i], "-h")) {
+      print_usage();
+      return 0;
+    }
+    else if (!strcmp(argv[i], "-f")) {
+      do_fix_checksum = 1;
+    }
+    else if (!strcmp(argv[i], "-x")) {
+      if (i+1 >= argc) {
+	fprintf(stderr, "%s: missing argument\n", app_name);
+	return -1;
+      }
+      do_write_rootfs = 1;
+      rootfs_fname = argv[i+1];
+      i++;
+    }
+    else if (!strcmp(argv[i], "-xk")) {
+      if (i+1 >= argc) {
+	fprintf(stderr, "%s: missing argument\n", app_name);
+	return -1;
+      }
+      do_write_kernel = 1;
+      kernel_fname = argv[i+1];
+      i++;
+    }
+    else if (!strcmp(argv[i], "-m")) {
+      if (i+1 >= argc) {
+	fprintf(stderr, "%s: missing argument\n", app_name);
+	return -1;
+      }
+      do_read_rootfs = 1;
+      rootfs_fname = argv[i+1];
+      i++;
+    }
+    else if (!strcmp(argv[i], "-k")) {
+      if (i+1 >= argc) {
+	fprintf(stderr, "%s: missing argument\n", app_name);
+	return -1;
+      }
+      do_read_kernel = 1;
+      kernel_fname = argv[i+1];
+      i++;
+    }
+    else if (!strcmp(argv[i], "-w")) {
+      if (i+1 >= argc) {
+	fprintf(stderr, "%s: missing argument\n", app_name);
+	return -1;
+      }
+      do_write = 1;
+      new_img_fname = argv[i+1];
+      i++;
+    }
+    else if (img_fname != 0) {
+      fprintf(stderr, "%s: too many arguments\n", app_name);
+      return -1;
+    }
+    else {
+      img_fname = argv[i];
+    }
+  }
+
+  if (img_fname == NULL) {
+    fprintf(stderr, "%s: missing argument\n", app_name);
+    return -1;
+  }
+
+  if ((do_read_rootfs && do_write_rootfs) ||
+      (do_read_kernel && do_write_kernel)) {
+    fprintf(stderr, "%s: conflictuous options\n", app_name);
+    return -1;
+  }
+
+  printf ("** Read firmware file\n");
+  img = read_img(img_fname);
+
+  printf ("Firmware product: %s\n", img+0x3dffbd);
+  printf ("Firmware version: 1.%02d.%02d\n", (img[0x3dffeb] & 0x7f), img[0x3dffec]);
+
+  if (do_write_rootfs) {
+    printf ("** Write rootfs file\n");
+    write_rootfs(img, rootfs_fname);
+  }
+
+  if (do_write_kernel) {
+    printf ("** Write kernel file\n");
+    write_kernel(img, kernel_fname);
+  }
+
+  if (do_read_rootfs) {
+    printf ("** Read rootfs file\n");
+    read_rootfs(img, rootfs_fname);
+    do_fix_checksum = 1;
+  }
+
+  if (do_read_kernel) {
+    printf ("** Read kernel file\n");
+    read_kernel(img, kernel_fname);
+    do_fix_checksum = 1;
+  }
+
+  img_checksum = get_checksum(img);
+  real_checksum = compute_checksum(img);
+  
+  printf ("image checksum = %04x\n", img_checksum);
+  printf ("real checksum  = %04x\n", real_checksum);
+
+  if (do_fix_checksum) {
+    if (img_checksum != real_checksum) {
+      printf ("** Bad Checksum, fix it\n");
+      set_checksum(img, real_checksum);
+    }
+    else {
+      printf ("** Checksum is correct, good\n");
+    }
+  }
+
+  if (do_write) {
+    printf ("** Write image file\n");
+    write_img(img, new_img_fname);
+  }
+
+  free(img);
+  return 0;
+}
+