/* * sercons.c * choose the right serial device at boot time * * triemer 6-SEP-1998 * sercons.c is designed to allow the three different kinds * of serial devices under the decstation world to co-exist * in the same kernel. The idea here is to abstract * the pieces of the drivers that are common to this file * so that they do not clash at compile time and runtime. * * HK 16-SEP-1998 v0.002 * removed the PROM console as this is not a real serial * device. Added support for PROM console in drivers/char/tty_io.c * instead. Although it may work to enable more than one * console device I strongly recommend to use only one. */ #include <linux/init.h> #include <asm/dec/machtype.h> #ifdef CONFIG_ZS extern int zs_init(void); #endif #ifdef CONFIG_SERIAL_CONSOLE #ifdef CONFIG_ZS extern void zs_serial_console_init(void); #endif #endif /* rs_init - starts up the serial interface - handle normal case of starting up the serial interface */ #ifdef CONFIG_SERIAL int __init rs_init(void) { #ifdef CONFIG_ZS if (IOASIC) return zs_init(); #endif return -ENXIO; } __initcall(rs_init); #endif #ifdef CONFIG_SERIAL_CONSOLE /* serial_console_init handles the special case of starting * up the console on the serial port */ static int __init decserial_console_init(void) { #ifdef CONFIG_ZS if (IOASIC) zs_serial_console_init(); #endif return 0; } console_initcall(decserial_console_init); #endif