3a45066f19
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
/*-
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* Copyright (c) 2001 M. Warner Losh. All rights reserved.
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* Copyright (c) 2003 Norikatsu Shigemura, Takenori Watanabe All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/conf.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <dev/pccard/pccard_cis.h>
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#include <dev/pccard/pccardvar.h>
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#include <dev/uart/uart.h>
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#include <dev/uart/uart_bus.h>
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#include "pccarddevs.h"
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static int uart_pccard_probe(device_t dev);
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static int uart_pccard_attach(device_t dev);
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static device_method_t uart_pccard_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, uart_pccard_probe),
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DEVMETHOD(device_attach, uart_pccard_attach),
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DEVMETHOD(device_detach, uart_bus_detach),
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{ 0, 0 }
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};
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static driver_t uart_pccard_driver = {
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uart_driver_name,
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uart_pccard_methods,
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sizeof(struct uart_softc),
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};
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static int
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uart_pccard_probe(device_t dev)
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{
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int error;
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uint32_t fcn;
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fcn = PCCARD_FUNCTION_UNSPEC;
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error = pccard_get_function(dev, &fcn);
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if (error != 0)
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return (error);
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/*
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* If a serial card, we are likely the right driver. However,
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* some serial cards are better serviced by other drivers, so
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* allow other drivers to claim it, if they want.
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*/
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if (fcn == PCCARD_FUNCTION_SERIAL)
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return (BUS_PROBE_GENERIC);
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return (ENXIO);
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}
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static int
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uart_pccard_attach(device_t dev)
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{
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struct uart_softc *sc;
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int error;
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sc = device_get_softc(dev);
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sc->sc_class = &uart_ns8250_class;
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error = uart_bus_probe(dev, 0, 0, 0, 0);
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if (error > 0)
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return (error);
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return (uart_bus_attach(dev));
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}
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DRIVER_MODULE(uart, pccard, uart_pccard_driver, uart_devclass, 0, 0);
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