freebsd-dev/sys/dev/uart/uart_bus_pccard.c
Warner Losh f6cea53f9d Create a generic PCCARD_PNP_INFO from the MODULE_PNP_INFO building
block. Use it in all the PNP drivers to export either the current PNP
table. For uart, create a custom table and export it using
MODULE_PNP_INFO since it's the only one that matches on function
number.

Differential Review: https://reviews.freebsd.org/D3461
2015-12-11 05:27:56 +00:00

105 lines
3.1 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 uint32_t uart_pccard_function = PCCARD_FUNCTION_SERIAL;
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 == uart_pccard_function)
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);
MODULE_PNP_INFO("U32:function_type;", pccard, uart, &uart_pccard_function,
sizeof(uart_pccard_function), 1);