com32/samples/serialinfo.c

   1 /* ----------------------------------------------------------------------- *
   2  *
   3  *   Copyright 2007-2008 H. Peter Anvin - All Rights Reserved
   4  *
   5  *   This program is free software; you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License as published by
   7  *   the Free Software Foundation, Inc., 53 Temple Place Ste 330,
   8  *   Boston MA 02111-1307, USA; either version 2 of the License, or
   9  *   (at your option) any later version; incorporated herein by reference.
  10  *
  11  * ----------------------------------------------------------------------- */
  12
  13 /*
  14  * serialinfo.c
  15  *
  16  * Print serial port info
  17  */
  18
  19 #include <string.h>
  20 #include <stdio.h>
  21 #include <console.h>
  22 #include <syslinux/config.h>
  23
  24 int main(void)
  25 {
  26     const struct syslinux_serial_console_info *si;
  27
  28 #if 0
  29         /* this hangs! */
  30     openconsole(&dev_null_r, &dev_stdcon_w);
  31 #else
  32         /* this works */
  33     openconsole(&dev_rawcon_r, &dev_ansiserial_w);
  34 #endif
  35
  36     si = syslinux_serial_console_info();
  37
  38     printf("Serial port base:    %#06x\n", si->iobase);
  39     printf("Serial port divisor:  %5d", si->divisor);
  40     if (si->divisor)
  41         printf(" (%d baud)", 115200 / si->divisor);
  42     printf("\n" "Flow control bits:    %#05x\n", si->flowctl);
  43
  44     return 0;
  45 }