updater/firmware_gen.c

   1
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include <string.h>
   5
   6 #include <stdint.h>
   7
   8 #include <sys/types.h>
   9 #include <sys/stat.h>
  10 #include <fcntl.h>
  11
  12
  13 #define myfirmware_rawfilename  "./usbasploader.raw"
  14 #define myout                   stdout
  15
  16 int main(int argc, char** argv) {
  17   int fd;
  18   uint16_t b;
  19   uint64_t c;
  20   struct stat fwstat;
  21
  22   fprintf(myout, "\n");
  23   fprintf(myout, "#ifndef FIRMWARE_H_5f27a7e9840141b1aa57eef07c1d939f\n");
  24   fprintf(myout, "#define FIRMWARE_H_5f27a7e9840141b1aa57eef07c1d939f 1\n");
  25   fprintf(myout, "\n");
  26   fprintf(myout, "#include <stdint.h>\n");
  27   fprintf(myout, "#include <avr/io.h>\n");
  28   fprintf(myout, "#include <avr/pgmspace.h>\n");
  29   fprintf(myout, "#include \"../firmware/spminterface.h\"\n");
  30   fprintf(myout, "\n");
  31   fprintf(myout, "//firmware generator generated\n");
  32
  33   fd=open(myfirmware_rawfilename, O_RDONLY);
  34   if (fd > 2) {
  35     fstat(fd, &fwstat);
  36     fprintf(myout, "#define     SIZEOF_new_firmware                                             %llu\n",(long long unsigned int)fwstat.st_size);
  37     fprintf(myout, "const uint16_t firmware[SIZEOF_new_firmware>>1] PROGMEM     =       {");
  38     fprintf(myout, "\n");
  39
  40     c=0;
  41     while (read(fd, &b, 2) == 2) {
  42       c+=2;
  43       fprintf(myout,"0x%04x, ", (unsigned int)b);
  44       if ((c % 20) == 0) fprintf(myout,"\n");
  45     }
  46     if ((c % 20) != 0) fprintf(myout,"\n");
  47     fprintf(myout, "};\n");
  48     fprintf(myout, "const uint8_t *new_firmware =       (void*)&firmware;\n");
  49     fprintf(myout, "\n");
  50
  51     close(fd);
  52   } else {
  53     fprintf(stderr, "error opening %s\n", myfirmware_rawfilename);
  54
  55     fprintf(myout, "#define     SIZEOF_new_firmware                                             0\n");
  56     fprintf(myout, "const uint16_t firmware[SIZEOF_new_firmware>>1] PROGMEM     =       {};\n");
  57     fprintf(myout, "const uint8_t *new_firmware =       (void*)&firmware;\n");
  58     fprintf(myout, "\n");
  59   }
  60
  61   fprintf(myout, "#endif\n");
  62   fprintf(myout, "\n");
  63   return 0;
  64 }