uart_bus_pccard.c revision 120083
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: head/sys/dev/uart/uart_bus_pccard.c 120083 2003-09-15 04:49:22Z 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/lock.h> 35#include <sys/malloc.h> 36#include <sys/mutex.h> 37#include <sys/module.h> 38#include <sys/tty.h> 39#include <machine/bus_pio.h> 40#include <machine/bus.h> 41#include <machine/resource.h> 42 43#include <dev/pccard/pccardreg.h> 44#include <dev/pccard/pccardvar.h> 45#include <dev/pccard/pccarddevs.h> 46 47#include <dev/uart/uart.h> 48#include <dev/uart/uart_bus.h> 49 50static int uart_pccard_match(device_t self); 51static int uart_pccard_probe(device_t dev); 52 53static device_method_t uart_pccard_methods[] = { 54 /* Device interface */ 55 DEVMETHOD(device_probe, pccard_compat_probe), 56 DEVMETHOD(device_attach, pccard_compat_attach), 57 DEVMETHOD(device_detach, uart_bus_detach), 58 59 /* Card interface */ 60 DEVMETHOD(card_compat_match, uart_pccard_match), 61 DEVMETHOD(card_compat_probe, uart_pccard_probe), 62 DEVMETHOD(card_compat_attach, uart_bus_attach), 63 64 { 0, 0 } 65}; 66 67static driver_t uart_pccard_driver = { 68 uart_driver_name, 69 uart_pccard_methods, 70 sizeof(struct uart_softc), 71}; 72 73static int 74uart_pccard_match(device_t dev) 75{ 76 int error = 0; 77 u_int32_t fcn = PCCARD_FUNCTION_UNSPEC; 78 79 error = pccard_get_function(dev, &fcn); 80 if (error != 0) 81 return (error); 82 /* 83 * If a serial card, we are likely the right driver. However, 84 * some serial cards are better servered by other drivers, so 85 * allow other drivers to claim it, if they want. 86 */ 87 if (fcn == PCCARD_FUNCTION_SERIAL) 88 return (-100); 89 90 return(ENXIO); 91} 92 93static int 94uart_pccard_probe(dev) 95 device_t dev; 96{ 97 struct uart_softc *sc; 98 sc = device_get_softc(dev); 99 sc->sc_class = &uart_ns8250_class; 100 101 /* Do not probe IRQ - pccard doesn't turn on the interrupt line */ 102 /* until bus_setup_intr but how can I do so?*/ 103 return (uart_bus_probe(dev, 0, 0, 0)); 104} 105 106DRIVER_MODULE(uart, pccard, uart_pccard_driver, uart_devclass, 0, 0); 107