uart_bus_pccard.c revision 256281
1/*- 2 * Copyright (c) 2001 M. Warner Losh. All rights reserved. 3 * Copyright (c) 2003 Norikatsu Shigemura, Takenori Watanabe All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include <sys/cdefs.h> 27__FBSDID("$FreeBSD: stable/10/sys/dev/uart/uart_bus_pccard.c 151791 2005-10-28 06:27:53Z marcel $"); 28 29#include <sys/param.h> 30#include <sys/systm.h> 31#include <sys/bus.h> 32#include <sys/conf.h> 33#include <sys/kernel.h> 34#include <sys/module.h> 35#include <machine/bus.h> 36#include <machine/resource.h> 37 38#include <dev/pccard/pccard_cis.h> 39#include <dev/pccard/pccardvar.h> 40 41#include <dev/uart/uart.h> 42#include <dev/uart/uart_bus.h> 43 44#include "pccarddevs.h" 45 46static int uart_pccard_probe(device_t dev); 47static int uart_pccard_attach(device_t dev); 48 49static device_method_t uart_pccard_methods[] = { 50 /* Device interface */ 51 DEVMETHOD(device_probe, uart_pccard_probe), 52 DEVMETHOD(device_attach, uart_pccard_attach), 53 DEVMETHOD(device_detach, uart_bus_detach), 54 55 { 0, 0 } 56}; 57 58static driver_t uart_pccard_driver = { 59 uart_driver_name, 60 uart_pccard_methods, 61 sizeof(struct uart_softc), 62}; 63 64static int 65uart_pccard_probe(device_t dev) 66{ 67 int error; 68 uint32_t fcn; 69 70 fcn = PCCARD_FUNCTION_UNSPEC; 71 error = pccard_get_function(dev, &fcn); 72 if (error != 0) 73 return (error); 74 /* 75 * If a serial card, we are likely the right driver. However, 76 * some serial cards are better serviced by other drivers, so 77 * allow other drivers to claim it, if they want. 78 */ 79 if (fcn == PCCARD_FUNCTION_SERIAL) 80 return (BUS_PROBE_GENERIC); 81 82 return (ENXIO); 83} 84 85static int 86uart_pccard_attach(device_t dev) 87{ 88 struct uart_softc *sc; 89 int error; 90 91 sc = device_get_softc(dev); 92 sc->sc_class = &uart_ns8250_class; 93 94 error = uart_bus_probe(dev, 0, 0, 0, 0); 95 if (error > 0) 96 return (error); 97 return (uart_bus_attach(dev)); 98} 99 100DRIVER_MODULE(uart, pccard, uart_pccard_driver, uart_devclass, 0, 0); 101