promcon.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
- * SGI PROM io-routines.
- *
- * Copyright (c) 1999 Ulf Carlsson
- *
- * Derived from DECstation promcon.c
- * Copyright (c) 1998 Harald Koerfgen
- */
- #include <linux/tty.h>
- #include <linux/major.h>
- #include <linux/ptrace.h>
- #include <linux/init.h>
- #include <linux/console.h>
- #include <linux/fs.h>
- static void prom_console_write(struct console *co, const char *s,
- unsigned count)
- {
- extern int CONSOLE_CHANNEL; // The default serial port
- unsigned i;
- for (i = 0; i < count; i++) {
- if (*s == 10)
- serial_putc(CONSOLE_CHANNEL, 13);
- serial_putc(CONSOLE_CHANNEL, *s++);
- }
- }
- int prom_getchar(void)
- {
- return 0;
- }
- static kdev_t prom_console_device(struct console *c)
- {
- return MKDEV(TTY_MAJOR, 64 + c->index);
- }
- static struct console sercons = {
- name: "ttyS",
- write: prom_console_write,
- device: prom_console_device,
- flags: CON_PRINTBUFFER,
- index: -1,
- };
- /*
- * Register console.
- */
- void gal_serial_console_init(void)
- {
- // serial_init();
- //serial_set(115200);
- register_console(&sercons);
- }