include/minix/tty.h

   1
   2 #ifndef _MINIX_TTY_H
   3 #define _MINIX_TTY_H
   4
   5 #include <sys/types.h>
   6
   7 #define TTYMAGIC        0xb105
   8
   9 /* A struct that the tty driver can use to pass values to the boot monitor.
  10  * Currently only the value of the origin of the first vty (console), so the
  11  * boot monitor can properly display it when panicing (tty isn't scheduled
  12  * to switch to the first vty). It's written at the end of video memory
  13  * (video memory base + video memory size - sizeof(struct boot_tty_info).
  14  */
  15
  16 struct boot_tty_info {
  17         u16_t   reserved[30];   /* reserved, set to 0 */
  18         u16_t   consorigin;     /* origin in video memory of console */
  19         u16_t   conscursor;     /* position of cursor of console */
  20         u16_t   flags;          /* flags indicating which fields are valid */
  21         u16_t   magic;          /* magic number indicating struct is valid */
  22 };
  23
  24 #define BTIF_CONSORIGIN 0x01    /* consorigin is set */
  25 #define BTIF_CONSCURSOR 0x02    /* conscursor is set */
  26
  27 #endif
  28