1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Wrap-around code for a console using the
4*4882a593Smuzhiyun * ARC io-routines.
5*4882a593Smuzhiyun *
6*4882a593Smuzhiyun * Copyright (c) 1998 Harald Koerfgen
7*4882a593Smuzhiyun * Copyright (c) 2001 Ralf Baechle
8*4882a593Smuzhiyun * Copyright (c) 2002 Thiemo Seufer
9*4882a593Smuzhiyun */
10*4882a593Smuzhiyun #include <linux/tty.h>
11*4882a593Smuzhiyun #include <linux/major.h>
12*4882a593Smuzhiyun #include <linux/init.h>
13*4882a593Smuzhiyun #include <linux/console.h>
14*4882a593Smuzhiyun #include <linux/fs.h>
15*4882a593Smuzhiyun #include <asm/setup.h>
16*4882a593Smuzhiyun #include <asm/sgialib.h>
17*4882a593Smuzhiyun
prom_console_write(struct console * co,const char * s,unsigned count)18*4882a593Smuzhiyun static void prom_console_write(struct console *co, const char *s,
19*4882a593Smuzhiyun unsigned count)
20*4882a593Smuzhiyun {
21*4882a593Smuzhiyun /* Do each character */
22*4882a593Smuzhiyun while (count--) {
23*4882a593Smuzhiyun if (*s == '\n')
24*4882a593Smuzhiyun prom_putchar('\r');
25*4882a593Smuzhiyun prom_putchar(*s++);
26*4882a593Smuzhiyun }
27*4882a593Smuzhiyun }
28*4882a593Smuzhiyun
prom_console_setup(struct console * co,char * options)29*4882a593Smuzhiyun static int prom_console_setup(struct console *co, char *options)
30*4882a593Smuzhiyun {
31*4882a593Smuzhiyun if (prom_flags & PROM_FLAG_USE_AS_CONSOLE)
32*4882a593Smuzhiyun return 0;
33*4882a593Smuzhiyun return -ENODEV;
34*4882a593Smuzhiyun }
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun static struct console arc_cons = {
37*4882a593Smuzhiyun .name = "arc",
38*4882a593Smuzhiyun .write = prom_console_write,
39*4882a593Smuzhiyun .setup = prom_console_setup,
40*4882a593Smuzhiyun .flags = CON_PRINTBUFFER,
41*4882a593Smuzhiyun .index = -1,
42*4882a593Smuzhiyun };
43*4882a593Smuzhiyun
44*4882a593Smuzhiyun /*
45*4882a593Smuzhiyun * Register console.
46*4882a593Smuzhiyun */
47*4882a593Smuzhiyun
arc_console_init(void)48*4882a593Smuzhiyun static int __init arc_console_init(void)
49*4882a593Smuzhiyun {
50*4882a593Smuzhiyun register_console(&arc_cons);
51*4882a593Smuzhiyun
52*4882a593Smuzhiyun return 0;
53*4882a593Smuzhiyun }
54*4882a593Smuzhiyun console_initcall(arc_console_init);
55