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/*-
* Copyright (c) 2001 by Thomas Moestl <tmm@FreeBSD.org>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <dev/ofw/ofw_bus.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <machine/resource.h>
#include <machine/ver.h>
#include <dev/uart/uart.h>
#include <dev/uart/uart_bus.h>
#include <dev/uart/uart_cpu.h>
static int uart_ebus_probe(device_t dev);
static device_method_t uart_ebus_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, uart_ebus_probe),
DEVMETHOD(device_attach, uart_bus_attach),
DEVMETHOD(device_detach, uart_bus_detach),
{ 0, 0 }
};
static driver_t uart_ebus_driver = {
uart_driver_name,
uart_ebus_methods,
sizeof(struct uart_softc),
};
static int
uart_ebus_probe(device_t dev)
{
const char *nm, *cmpt;
struct uart_softc *sc;
struct uart_devinfo dummy;
sc = device_get_softc(dev);
sc->sc_class = NULL;
nm = ofw_bus_get_name(dev);
cmpt = ofw_bus_get_compat(dev);
if (cmpt == NULL)
cmpt = "";
if (!strcmp(nm, "lom-console") || !strcmp(nm, "su") ||
!strcmp(nm, "su_pnp") || !strcmp(cmpt, "rsc-console") ||
!strcmp(cmpt, "rsc-control") || !strcmp(cmpt, "su") ||
!strcmp(cmpt, "su16550") || !strcmp(cmpt, "su16552")) {
/*
* On AXi and AXmp boards the NS16550 (used to connect
* keyboard/mouse) share their IRQ lines with the i8042.
* Any IRQ activity (typically during attach) of the
* NS16550 used to connect the keyboard when actually the
* PS/2 keyboard is selected in OFW causes interaction
* with the OBP i8042 driver resulting in a hang and vice
* versa. As RS232 keyboards and mice obviously aren't
* meant to be used in parallel with PS/2 ones on these
* boards don't attach to the NS16550 in case the RS232
* keyboard isn't selected in order to prevent such hangs.
*/
if ((!strcmp(sparc64_model, "SUNW,UltraAX-MP") ||
!strcmp(sparc64_model, "SUNW,UltraSPARC-IIi-Engine")) &&
uart_cpu_getdev(UART_DEV_KEYBOARD, &dummy)) {
device_disable(dev);
return (ENXIO);
}
sc->sc_class = &uart_ns8250_class;
return (uart_bus_probe(dev, 0, 0, 0, 0));
}
return (ENXIO);
}
DRIVER_MODULE(uart, ebus, uart_ebus_driver, uart_devclass, 0, 0);
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