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 <stdio.h>
  14 #include "console.h"
  15 #include "config.h"
  16 #include "windef.h"
  17 void TTY_Start()
  18 {
  19    /* This should be the root driver so we can ignore anything
  20       already in the struct. */
  21
  22    driver.norefresh = FALSE;
  23
  24    driver.write = TTY_Write;
  25    driver.getKeystroke = TTY_GetKeystroke;
  26 }
  27
  28 void TTY_Write(char output, int fg, int bg, int attribute)
  29 {
  30    /* We can discard all extended information. */
  31    fprintf(driver.console_out, "%c", output);
  32 }
  33
  34 void TTY_GetKeystroke(char *scan, char *ch)
  35 {
  36    /* All we have are character input things, nothing for extended */
  37    /* This is just the TTY driver, after all. We'll cope. */
  38    *ch = fgetc(driver.console_in);
  39 }
  40
  41