sys/dev/pcmcia/com_pcmcia.c

   1 /*      $NetBSD: com_pcmcia.c,v 1.60 2009/11/12 20:29:30 dyoung Exp $    */
   2
   3 /*-
   4  * Copyright (c) 1998, 2004 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Charles M. Hannum.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 /*-
  33  * Copyright (c) 1991 The Regents of the University of California.
  34  * All rights reserved.
  35  *
  36  * Redistribution and use in source and binary forms, with or without
  37  * modification, are permitted provided that the following conditions
  38  * are met:
  39  * 1. Redistributions of source code must retain the above copyright
  40  *    notice, this list of conditions and the following disclaimer.
  41  * 2. Redistributions in binary form must reproduce the above copyright
  42  *    notice, this list of conditions and the following disclaimer in the
  43  *    documentation and/or other materials provided with the distribution.
  44  * 3. Neither the name of the University nor the names of its contributors
  45  *    may be used to endorse or promote products derived from this software
  46  *    without specific prior written permission.
  47  *
  48  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  49  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  50  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  51  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  52  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  53  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  54  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  55  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  56  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  57  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  58  * SUCH DAMAGE.
  59  *
  60  *      @(#)com.c       7.5 (Berkeley) 5/16/91
  61  */
  62
  63 #include <sys/cdefs.h>
  64 __KERNEL_RCSID(0, "$NetBSD: com_pcmcia.c,v 1.60 2009/11/12 20:29:30 dyoung Exp $");
  65
  66 #include <sys/param.h>
  67 #include <sys/systm.h>
  68 #include <sys/ioctl.h>
  69 #include <sys/select.h>
  70 #include <sys/tty.h>
  71 #include <sys/proc.h>
  72 #include <sys/conf.h>
  73 #include <sys/file.h>
  74 #include <sys/uio.h>
  75 #include <sys/kernel.h>
  76 #include <sys/syslog.h>
  77 #include <sys/device.h>
  78
  79 #include <sys/intr.h>
  80 #include <sys/bus.h>
  81
  82 #include <dev/pcmcia/pcmciavar.h>
  83 #include <dev/pcmcia/pcmciareg.h>
  84 #include <dev/pcmcia/pcmciadevs.h>
  85
  86 #include <dev/ic/comreg.h>
  87 #include <dev/ic/comvar.h>
  88
  89 #include <dev/isa/isareg.h>
  90
  91 int com_pcmcia_match(device_t, cfdata_t , void *);
  92 int com_pcmcia_validate_config(struct pcmcia_config_entry *);
  93 void com_pcmcia_attach(device_t, device_t, void *);
  94 int com_pcmcia_detach(device_t, int);
  95
  96 int com_pcmcia_enable(struct com_softc *);
  97 void com_pcmcia_disable(struct com_softc *);
  98
  99 struct com_pcmcia_softc {
 100         struct com_softc sc_com;                /* real "com" softc */
 101
 102         /* PCMCIA-specific goo */
 103         struct pcmcia_function *sc_pf;          /* our PCMCIA function */
 104         void *sc_ih;                            /* interrupt handler */
 105         int sc_attached;
 106 };
 107
 108 CFATTACH_DECL_NEW(com_pcmcia, sizeof(struct com_pcmcia_softc),
 109     com_pcmcia_match, com_pcmcia_attach, com_pcmcia_detach, NULL);
 110
 111 static const struct pcmcia_product com_pcmcia_products[] = {
 112         { PCMCIA_VENDOR_INVALID, PCMCIA_PRODUCT_INVALID,
 113           PCMCIA_CIS_MEGAHERTZ_XJ2288 },
 114         { PCMCIA_VENDOR_TDK, PCMCIA_PRODUCT_TDK_BLUETOOTH_PCCARD,
 115           PCMCIA_CIS_INVALID },
 116 };
 117 static const size_t com_pcmcia_nproducts =
 118     sizeof(com_pcmcia_products) / sizeof(com_pcmcia_products[0]);
 119
 120 int
 121 com_pcmcia_match(device_t parent, cfdata_t match, void *aux)
 122 {
 123         int comportmask;
 124         struct pcmcia_attach_args *pa = aux;
 125         struct pcmcia_config_entry *cfe;
 126
 127         /* 1. Does it claim to be a serial device? */
 128         if (pa->pf->function == PCMCIA_FUNCTION_SERIAL)
 129                 return 1;
 130
 131         /* 2. Does it have all four 'standard' port ranges? */
 132         comportmask = 0;
 133         SIMPLEQ_FOREACH(cfe, &pa->pf->cfe_head, cfe_list) {
 134                 switch (cfe->iospace[0].start) {
 135                 case IO_COM1:
 136                         comportmask |= 1;
 137                         break;
 138                 case IO_COM2:
 139                         comportmask |= 2;
 140                         break;
 141                 case IO_COM3:
 142                         comportmask |= 4;
 143                         break;
 144                 case IO_COM4:
 145                         comportmask |= 8;
 146                         break;
 147                 }
 148         }
 149
 150         if (comportmask == 15)
 151                 return 1;
 152
 153         /* 3. Is this a card we know about? */
 154         if (pcmcia_product_lookup(pa, com_pcmcia_products, com_pcmcia_nproducts,
 155             sizeof(com_pcmcia_products[0]), NULL))
 156                 return 1;
 157
 158         return 0;
 159 }
 160
 161 int
 162 com_pcmcia_validate_config(struct pcmcia_config_entry *cfe)
 163 {
 164         if (cfe->iftype != PCMCIA_IFTYPE_IO ||
 165             cfe->num_iospace != 1)
 166                 return (EINVAL);
 167         /* Some cards have a memory space, but we don't use it. */
 168         cfe->num_memspace = 0;
 169         return (0);
 170 }
 171
 172 void
 173 com_pcmcia_attach(device_t parent, device_t self, void *aux)
 174 {
 175         struct com_pcmcia_softc *psc = device_private(self);
 176         struct com_softc *sc = &psc->sc_com;
 177         struct pcmcia_attach_args *pa = aux;
 178         struct pcmcia_config_entry *cfe;
 179         int error;
 180
 181         sc->sc_dev = self;
 182         psc->sc_pf = pa->pf;
 183
 184         error = pcmcia_function_configure(pa->pf, com_pcmcia_validate_config);
 185         if (error) {
 186                 aprint_error_dev(self, "configure failed, error=%d\n", error);
 187                 return;
 188         }
 189
 190         cfe = pa->pf->cfe;
 191         COM_INIT_REGS(sc->sc_regs, cfe->iospace[0].handle.iot,
 192             cfe->iospace[0].handle.ioh, -1);
 193
 194         error = com_pcmcia_enable(sc);
 195         if (error)
 196                 goto fail;
 197
 198         sc->enabled = 1;
 199
 200         sc->sc_frequency = COM_FREQ;
 201
 202         sc->enable = com_pcmcia_enable;
 203         sc->disable = com_pcmcia_disable;
 204
 205         aprint_normal("%s", device_xname(self));
 206
 207         com_attach_subr(sc);
 208
 209         if (!pmf_device_register1(self, com_suspend, com_resume,
 210             com_cleanup))
 211                 aprint_error_dev(self, "couldn't establish power handler\n");
 212
 213         sc->enabled = 0;
 214
 215         psc->sc_attached = 1;
 216         com_pcmcia_disable(sc);
 217         return;
 218
 219 fail:
 220         pcmcia_function_unconfigure(pa->pf);
 221 }
 222
 223 int
 224 com_pcmcia_detach(device_t self, int flags)
 225 {
 226         struct com_pcmcia_softc *psc = device_private(self);
 227         int error;
 228
 229         if (!psc->sc_attached)
 230                 return (0);
 231
 232         if ((error = com_detach(self, flags)) != 0)
 233                 return error;
 234
 235         pmf_device_deregister(self);
 236
 237         pcmcia_function_unconfigure(psc->sc_pf);
 238         return (0);
 239 }
 240
 241 int
 242 com_pcmcia_enable(struct com_softc *sc)
 243 {
 244         struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc;
 245         struct pcmcia_function *pf = psc->sc_pf;
 246         int error;
 247
 248         /* establish the interrupt. */
 249         psc->sc_ih = pcmcia_intr_establish(pf, IPL_SERIAL, comintr, sc);
 250         if (psc->sc_ih == NULL) {
 251                 aprint_error_dev(sc->sc_dev, "couldn't establish interrupt\n");
 252                 return (1);
 253         }
 254
 255         if ((error = pcmcia_function_enable(pf)) != 0) {
 256                 pcmcia_intr_disestablish(pf, psc->sc_ih);
 257                 psc->sc_ih = 0;
 258                 return (error);
 259         }
 260
 261         if ((psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3C562) ||
 262             (psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3CXEM556) ||
 263             (psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3CXEM556INT)) {
 264                 int reg;
 265
 266                 /* turn off the ethernet-disable bit */
 267                 reg = pcmcia_ccr_read(pf, PCMCIA_CCR_OPTION);
 268                 if (reg & 0x08) {
 269                         reg &= ~0x08;
 270                         pcmcia_ccr_write(pf, PCMCIA_CCR_OPTION, reg);
 271                 }
 272         }
 273
 274         return (0);
 275 }
 276
 277 void
 278 com_pcmcia_disable(struct com_softc *sc)
 279 {
 280         struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc;
 281
 282         pcmcia_function_disable(psc->sc_pf);
 283         pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih);
 284         psc->sc_ih = 0;
 285 }