ba5b7dfd1c
o Fix typo in comment o s/-100/BUS_PROBE_GENERIC/ o s/err/error/ for consistency o Remove non-applicable comment o Allow uart_bus_probe() to return the predefined BUS_PROBE_* contants. In this case: explicitly test for error > 0.
101 lines
2.9 KiB
C
101 lines
2.9 KiB
C
/*-
|
|
* Copyright (c) 2001 M. Warner Losh. All rights reserved.
|
|
* Copyright (c) 2003 Norikatsu Shigemura, Takenori Watanabe 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 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/conf.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/module.h>
|
|
#include <machine/bus.h>
|
|
#include <machine/resource.h>
|
|
|
|
#include <dev/pccard/pccard_cis.h>
|
|
#include <dev/pccard/pccardvar.h>
|
|
|
|
#include <dev/uart/uart.h>
|
|
#include <dev/uart/uart_bus.h>
|
|
|
|
#include "pccarddevs.h"
|
|
|
|
static int uart_pccard_probe(device_t dev);
|
|
static int uart_pccard_attach(device_t dev);
|
|
|
|
static device_method_t uart_pccard_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, uart_pccard_probe),
|
|
DEVMETHOD(device_attach, uart_pccard_attach),
|
|
DEVMETHOD(device_detach, uart_bus_detach),
|
|
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t uart_pccard_driver = {
|
|
uart_driver_name,
|
|
uart_pccard_methods,
|
|
sizeof(struct uart_softc),
|
|
};
|
|
|
|
static int
|
|
uart_pccard_probe(device_t dev)
|
|
{
|
|
int error;
|
|
uint32_t fcn;
|
|
|
|
fcn = PCCARD_FUNCTION_UNSPEC;
|
|
error = pccard_get_function(dev, &fcn);
|
|
if (error != 0)
|
|
return (error);
|
|
/*
|
|
* If a serial card, we are likely the right driver. However,
|
|
* some serial cards are better serviced by other drivers, so
|
|
* allow other drivers to claim it, if they want.
|
|
*/
|
|
if (fcn == PCCARD_FUNCTION_SERIAL)
|
|
return (BUS_PROBE_GENERIC);
|
|
|
|
return (ENXIO);
|
|
}
|
|
|
|
static int
|
|
uart_pccard_attach(device_t dev)
|
|
{
|
|
struct uart_softc *sc;
|
|
int error;
|
|
|
|
sc = device_get_softc(dev);
|
|
sc->sc_class = &uart_ns8250_class;
|
|
|
|
error = uart_bus_probe(dev, 0, 0, 0, 0);
|
|
if (error > 0)
|
|
return (error);
|
|
return (uart_bus_attach(dev));
|
|
}
|
|
|
|
DRIVER_MODULE(uart, pccard, uart_pccard_driver, uart_devclass, 0, 0);
|