1 /*- 2 * Copyright (c) 1991 The Regents of the University of California. 3 * 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 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * $DragonFly: src/sys/dev/serial/sio/sio_pccard.c,v 1.2 2004/02/19 15:48:26 joerg Exp $ 34 */ 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/tty.h> 38 #include <sys/proc.h> 39 #include <sys/module.h> 40 #include <sys/kernel.h> 41 #include <sys/bus.h> 42 #include <machine/bus.h> 43 #include <sys/rman.h> 44 #include <sys/timepps.h> 45 46 #include <machine/resource.h> 47 48 #include "sioreg.h" 49 #include "sio_private.h" 50 51 #include <bus/pccard/pccarddevs.h> 52 #include <bus/pccard/pccardreg.h> 53 #include <bus/pccard/pccardvar.h> 54 55 static int sio_pccard_attach(device_t dev); 56 static int sio_pccard_match(device_t self); 57 static int sio_pccard_detach(device_t dev); 58 static int sio_pccard_probe(device_t dev); 59 60 static device_method_t sio_pccard_methods[] = { 61 /* Device interface */ 62 DEVMETHOD(device_probe, pccard_compat_probe), 63 DEVMETHOD(device_attach, pccard_compat_attach), 64 DEVMETHOD(device_detach, sio_pccard_detach), 65 66 /* Card interface */ 67 DEVMETHOD(card_compat_match, sio_pccard_match), 68 DEVMETHOD(card_compat_probe, sio_pccard_probe), 69 DEVMETHOD(card_compat_attach, sio_pccard_attach), 70 71 { 0, 0 } 72 }; 73 74 static driver_t sio_pccard_driver = { 75 "sio", 76 sio_pccard_methods, 77 sizeof(struct com_s), 78 }; 79 80 static int 81 sio_pccard_match(device_t dev) 82 { 83 int error = 0; 84 u_int32_t fcn = PCCARD_FUNCTION_UNSPEC; 85 86 fcn = pccard_get_function(dev); 87 if (error != 0) 88 return (error); 89 /* 90 * If a serial card, we are likely the right driver. However, 91 * some serial cards are better servered by other drivers, so 92 * allow other drivers to claim it, if they want. 93 */ 94 if (fcn == PCCARD_FUNCTION_SERIAL) 95 return (-100); 96 97 return(ENXIO); 98 } 99 100 static int 101 sio_pccard_probe(dev) 102 device_t dev; 103 { 104 /* Do not probe IRQ - pccard doesn't turn on the interrupt line */ 105 /* until bus_setup_intr */ 106 SET_FLAG(dev, COM_C_NOPROBE); 107 108 return (sioprobe(dev, 0, 0UL)); 109 } 110 111 static int 112 sio_pccard_attach(dev) 113 device_t dev; 114 { 115 return (sioattach(dev, 0, 0UL)); 116 } 117 118 /* 119 * sio_detach - unload the driver and clear the table. 120 * XXX TODO: 121 * This is usually called when the card is ejected, but 122 * can be caused by a modunload of a controller driver. 123 * The idea is to reset the driver's view of the device 124 * and ensure that any driver entry points such as 125 * read and write do not hang. 126 */ 127 static int 128 sio_pccard_detach(dev) 129 device_t dev; 130 { 131 struct com_s *com; 132 133 com = (struct com_s *) device_get_softc(dev); 134 if (com == NULL) { 135 device_printf(dev, "NULL com in siounload\n"); 136 return (0); 137 } 138 com->gone = 1; 139 if (com->irqres) { 140 bus_teardown_intr(dev, com->irqres, com->cookie); 141 bus_release_resource(dev, SYS_RES_IRQ, 0, com->irqres); 142 } 143 if (com->ioportres) 144 bus_release_resource(dev, SYS_RES_IOPORT, 0, com->ioportres); 145 if (com->tp && (com->tp->t_state & TS_ISOPEN)) { 146 device_printf(dev, "still open, forcing close\n"); 147 com->tp->t_gen++; 148 ttyclose(com->tp); 149 ttwakeup(com->tp); 150 ttwwakeup(com->tp); 151 } else { 152 if (com->ibuf != NULL) 153 free(com->ibuf, M_DEVBUF); 154 } 155 device_printf(dev, "unloaded\n"); 156 return (0); 157 } 158 159 DRIVER_MODULE(sio, pccard, sio_pccard_driver, sio_devclass, 0, 0); 160