1
0
aedrix-kernel/drivers/serial.c

45 lines
1.4 KiB
C
Raw Normal View History

/*
Copyright (C) 2012, Aaron Lindsay <aaron@aclindsay.com>
This file is part of Aedrix.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <init.h>
#include <drivers/serial.h>
struct serial_dev *first_serial_dev;
int serial_register_device(struct serial_dev *sdev) {
if (!first_serial_dev)
first_serial_dev = sdev;
return 0;
}
struct serial_dev *serial_first_device() {
return first_serial_dev;
}
/*
* Initialize the serial sybsystem.
* Note: this is called directly from the kernel initialization as opposed to
* being an initcall because it has to be called before the serial drivers get
* initialized in earlyinitcalls.
*/
void serial_init() {
first_serial_dev = 0;
}