uart_iobus.c revision 160722 
12116Sjkh/*-
22116Sjkh * Copyright 2002 by Peter Grehan. All rights reserved.
32116Sjkh *
42116Sjkh * Redistribution and use in source and binary forms, with or without
52116Sjkh * modification, are permitted provided that the following conditions
62116Sjkh * are met:
72116Sjkh * 1. Redistributions of source code must retain the above copyright
88870Srgrimes *    notice, this list of conditions and the following disclaimer.
92116Sjkh * 2. Redistributions in binary form must reproduce the above copyright
102116Sjkh *    notice, this list of conditions and the following disclaimer in the
112116Sjkh *    documentation and/or other materials provided with the distribution.
122116Sjkh * 3. The name of the author may not be used to endorse or promote products
13176451Sdas *    derived from this software without specific prior written permission.
14176451Sdas *
152116Sjkh * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
162116Sjkh * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
172116Sjkh * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
182116Sjkh * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
192116Sjkh * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
202116Sjkh * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
212116Sjkh * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
222116Sjkh * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
232116Sjkh * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
242116Sjkh * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
252116Sjkh * SUCH DAMAGE.
26160122Sbde *
272116Sjkh * $FreeBSD: head/sys/powerpc/psim/uart_iobus.c 160722 2006-07-26 19:39:55Z marcel $
28160122Sbde */
292116Sjkh
302116Sjkh/*
31160122Sbde * PSIM local bus 16550
322116Sjkh */
33160122Sbde
342116Sjkh#include <sys/param.h>
352116Sjkh#include <sys/systm.h>
362116Sjkh#include <sys/bus.h>
372116Sjkh#include <sys/conf.h>
382116Sjkh#include <sys/kernel.h>
392116Sjkh#include <sys/lock.h>
40260067Skargl#include <sys/malloc.h>
41260067Skargl#include <sys/mutex.h>
422116Sjkh#include <sys/module.h>
432116Sjkh#include <sys/tty.h>
442116Sjkh#include <machine/bus.h>
45270847Skargl#include <sys/timepps.h>
46270845Skargl
472116Sjkh#include <dev/ofw/openfirm.h>
4897413Salfred#include <powerpc/psim/iobusvar.h>
4997413Salfred
502116Sjkh#include <dev/uart/uart.h>
512116Sjkh#include <dev/uart/uart_bus.h>
522116Sjkh
532116Sjkhstatic int uart_iobus_probe(device_t dev);
542116Sjkh
552116Sjkhstatic device_method_t uart_iobus_methods[] = {
562116Sjkh        /* Device interface */
572116Sjkh	DEVMETHOD(device_probe,		uart_iobus_probe),
588870Srgrimes	DEVMETHOD(device_attach,	uart_bus_attach),
592116Sjkh	DEVMETHOD(device_detach,	uart_bus_detach),
602116Sjkh
612116Sjkh	{ 0, 0 }
622116Sjkh};
632116Sjkh
642116Sjkhstatic driver_t uart_iobus_driver = {
65160122Sbde	uart_driver_name,
66160122Sbde	uart_iobus_methods,
67160122Sbde	sizeof(struct uart_softc),
682116Sjkh};
692116Sjkh
702116Sjkhstatic int
712116Sjkhuart_iobus_probe(device_t dev)
722116Sjkh{
732116Sjkh	struct uart_softc *sc;
742116Sjkh	char *type;
75160122Sbde
762116Sjkh	type = iobus_get_name(dev);
77160122Sbde	if (strncmp(type, "com", 3) != 0)
782116Sjkh		return (ENXIO);
792116Sjkh
802116Sjkh	sc = device_get_softc(dev);
81260067Skargl	sc->sc_class = &uart_ns8250_class;
82260067Skargl
83260067Skargl	device_set_desc(dev, "PSIM serial port");
84260067Skargl	return (uart_bus_probe(dev, 0, 0, 0, 0));
85}
86
87DRIVER_MODULE(uart, iobus, uart_iobus_driver, uart_devclass, 0, 0);
88