mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-30 12:04:07 +00:00
107 lines
3.5 KiB
C
107 lines
3.5 KiB
C
/*-
|
|
* 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);
|