arch/mips/arc/arc_con.c

   1 /*
   2  * Wrap-around code for a console using the
   3  * ARC io-routines.
   4  *
   5  * Copyright (c) 1998 Harald Koerfgen
   6  * Copyright (c) 2001 Ralf Baechle
   7  * Copyright (c) 2002 Thiemo Seufer
   8  */
   9 #include <linux/tty.h>
  10 #include <linux/major.h>
  11 #include <linux/init.h>
  12 #include <linux/console.h>
  13 #include <linux/fs.h>
  14 #include <asm/sgialib.h>
  15
  16 static void prom_console_write(struct console *co, const char *s,
  17                                unsigned count)
  18 {
  19         /* Do each character */
  20         while (count--) {
  21                 if (*s == '\n')
  22                         prom_putchar('\r');
  23                 prom_putchar(*s++);
  24         }
  25 }
  26
  27 static int __init prom_console_setup(struct console *co, char *options)
  28 {
  29         return !(prom_flags & PROM_FLAG_USE_AS_CONSOLE);
  30 }
  31
  32 static struct console arc_cons = {
  33         .name           = "arc",
  34         .write          = prom_console_write,
  35         .setup          = prom_console_setup,
  36         .flags          = CON_PRINTBUFFER,
  37         .index          = -1,
  38 };
  39
  40 /*
  41  *    Register console.
  42  */
  43
  44 static int __init arc_console_init(void)
  45 {
  46         register_console(&arc_cons);
  47
  48         return 0;
  49 }
  50 console_initcall(arc_console_init);