meizu_dfu: supports a single argument to run some code from RAM

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26708 a1c6a512-1295-4272-9138-f99709370657

utils/meizu_dfu/README

@@ -1,10 +1,9 @@
-
 Meizu DFU tool for Linux
 
 This tool can restore the firmware on M3, M6 SP, M6 TP and M6 SL.
+It can also run a single provided file from RAM.
 
 Notes:
 1. SST39VF800.dfu is taken from the official dfu tool provided by Meizu.
 2. updateNAND_BE_070831.dfu is taken from the unofficial dfu tool for M6 SL.
 3. To compile, just run `make'.
-

utils/meizu_dfu/meizu_dfu.c

@@ -43,9 +43,9 @@
 
 void usage()
 {
-  fprintf(stderr, "usage: meizu_dfu m3 <SST39VF800.dfu> <M3.EBN>\n");
+  fprintf(stderr, "usage: meizu_dfu m3 [SST39VF800.dfu] <M3.EBN>\n");
-  fprintf(stderr, "       meizu_dfu m6 <SST39VF800.dfu> <M6.EBN>\n");
+  fprintf(stderr, "       meizu_dfu m6 [SST39VF800.dfu] <M6.EBN>\n");
-  fprintf(stderr, "       meizu_dfu m6sl <updateNAND_BE_070831.dfu> <M6SL.EBN>\n");
+  fprintf(stderr, "       meizu_dfu m6sl [updateNAND_BE_070831.dfu] <M6SL.EBN>\n");
   exit(1);
 }
 
@@ -328,6 +328,9 @@ void dfu_m3_m6(char *file1, char *file2)
   memcpy(attr1.suf_sig, "RON", 3);
   attr1.suf_len = 0x10;
 
+  init_img(&img1, file1, &attr1);
+
+  if (file2) {
     attr2.delay = 1000;
     attr2.pre_off = 0x20;
     attr2.pre_sig = 0x44465543;
@@ -338,8 +341,8 @@ void dfu_m3_m6(char *file1, char *file2)
     memcpy(attr2.suf_sig, "UFD", 3);
     attr2.suf_len = 0x10;
 
-  init_img(&img1, file1, &attr1);
     init_img(&img2, file2, &attr2);
+  }
 
   device = usb_dev_open(USB_VID_SAMSUNG, USB_PID_M3_M6);
 //  usb_mimic_windows();
@@ -347,6 +350,7 @@ void dfu_m3_m6(char *file1, char *file2)
   get_cpu(device);
   send_file(device, &img1);
 
+  if (file2) {
     printf("Wait a sec (literally)...");
     sleep(1);
     printf(" OK\n");
@@ -355,6 +359,8 @@ void dfu_m3_m6(char *file1, char *file2)
     get_cpu(device);
     send_file(device, &img2);
     dfu_detach(device);
+  }
+
   usb_dev_close(device);
 }
 
@@ -374,6 +380,9 @@ void dfu_m6sl(char *file1, char *file2)
   memcpy(attr1.suf_sig, "UFD", 3);
   attr1.suf_len = 0x10;
 
+  init_img(&img1, file1, &attr1);
+
+  if (file2) {
     attr2.delay = 1000;
     attr2.pre_off = 0x20;
     attr2.pre_sig = 0x44465543;
@@ -384,14 +393,15 @@ void dfu_m6sl(char *file1, char *file2)
     memcpy(attr2.suf_sig, "UFD", 3);
     attr2.suf_len = 0x10;
 
-  init_img(&img1, file1, &attr1);
     init_img(&img2, file2, &attr2);
+  }
 
   device = usb_dev_open(USB_VID_SAMSUNG, USB_PID_M6SL);
   get_cpu(device);
   get_cpu(device);
   send_file(device, &img1);
 
+  if (file2) {
     printf("Wait a sec (literally)...");
     sleep(1);
     printf(" OK\n");
@@ -402,23 +412,27 @@ void dfu_m6sl(char *file1, char *file2)
     get_cpu(device);
     send_file(device, &img2);
     dfu_detach(device);
+  }
+
   usb_dev_close(device);
 }
 
 
 int main(int argc, char **argv)
 {
-  if (argc != 4)
+  if (argc < 3 || argc > 4)
     usage();
 
   setvbuf(stdout, NULL, _IONBF, 0);
 
+  char *second_file = (argc == 4) ? argv[3] : NULL;
+
   if (!strcmp(argv[1], "m3"))
-    dfu_m3_m6(argv[2], argv[3]);
+    dfu_m3_m6(argv[2], second_file);
   else if (!strcmp(argv[1], "m6"))
-    dfu_m3_m6(argv[2], argv[3]);
+    dfu_m3_m6(argv[2], second_file);
   else if (!strcmp(argv[1], "m6sl"))
-    dfu_m6sl(argv[2], argv[3]);
+    dfu_m6sl(argv[2], second_file);
   else
     usage();