arc_con.c
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:1k
- /*
- * Wrap-around code for a console using the
- * ARC io-routines.
- *
- * Copyright (c) 1998 Harald Koerfgen
- * Copyright (c) 2001 Ralf Baechle
- * Copyright (c) 2002 Thiemo Seufer
- */
- #include <linux/tty.h>
- #include <linux/major.h>
- #include <linux/ptrace.h>
- #include <linux/init.h>
- #include <linux/console.h>
- #include <linux/fs.h>
- #include <asm/sgialib.h>
- static void prom_console_write(struct console *co, const char *s,
- unsigned count)
- {
- /* Do each character */
- while (count--) {
- if (*s == 'n')
- prom_putchar('r');
- prom_putchar(*s++);
- }
- }
- static kdev_t prom_console_device(struct console *co)
- {
- return MKDEV(TTY_MAJOR, 64 + co->index);
- }
- static int __init prom_console_setup(struct console *co, char *options)
- {
- if (prom_flags & PROM_FLAG_USE_AS_CONSOLE)
- return 0;
- else
- return 1;
- }
- static struct console arc_cons = {
- name: "ttyS",
- write: prom_console_write,
- device: prom_console_device,
- setup: prom_console_setup,
- flags: CON_PRINTBUFFER,
- index: -1,
- };
- /*
- * Register console.
- */
- void __init arc_console_init(void)
- {
- register_console(&arc_cons);
- }