console/tty.c

   1 /* tty.c */
   2 /* Copyright 1999 - Joseph Pranevich */
   3
   4 /* This is the console driver for TTY-based consoles, i.e. consoles
   5    without cursor placement, etc. It's also a pretty decent starting
   6    point for other driers.
   7 */
   8
   9 /* When creating new drivers, you need to assign all the functions that
  10    that driver supports into the driver struct. If it is a supplementary
  11    driver, it should make sure to perserve the old values. */
  12
  13 #include "config.h"
  14
  15 #include <stdio.h>
  16
  17 #include "console.h"
  18 #include "windef.h"
  19 void TTY_Start()
  20 {
  21    /* This should be the root driver so we can ignore anything
  22       already in the struct. */
  23
  24    driver.norefresh = FALSE;
  25
  26    driver.write = TTY_Write;
  27    driver.getKeystroke = TTY_GetKeystroke;
  28 }
  29
  30 void TTY_Write(char output, int fg, int bg, int attribute)
  31 {
  32    /* We can discard all extended information. */
  33    fprintf(driver.console_out, "%c", output);
  34 }
  35
  36 void TTY_GetKeystroke(char *scan, char *ch)
  37 {
  38    /* All we have are character input things, nothing for extended */
  39    /* This is just the TTY driver, after all. We'll cope. */
  40    *ch = fgetc(driver.console_in);
  41 }
  42
  43