com_pcmcia.c revision 1.46
1 /* $NetBSD: com_pcmcia.c,v 1.46 2004/08/10 18:43:49 mycroft 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /*- 40 * Copyright (c) 1991 The Regents of the University of California. 41 * All rights reserved. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. Neither the name of the University nor the names of its contributors 52 * may be used to endorse or promote products derived from this software 53 * without specific prior written permission. 54 * 55 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 56 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 57 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 58 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 59 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 60 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 61 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 62 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 63 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 64 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 65 * SUCH DAMAGE. 66 * 67 * @(#)com.c 7.5 (Berkeley) 5/16/91 68 */ 69 70 #include <sys/cdefs.h> 71 __KERNEL_RCSID(0, "$NetBSD: com_pcmcia.c,v 1.46 2004/08/10 18:43:49 mycroft Exp $"); 72 73 #include <sys/param.h> 74 #include <sys/systm.h> 75 #include <sys/ioctl.h> 76 #include <sys/select.h> 77 #include <sys/tty.h> 78 #include <sys/proc.h> 79 #include <sys/user.h> 80 #include <sys/conf.h> 81 #include <sys/file.h> 82 #include <sys/uio.h> 83 #include <sys/kernel.h> 84 #include <sys/syslog.h> 85 #include <sys/device.h> 86 87 #include <machine/intr.h> 88 #include <machine/bus.h> 89 90 #include <dev/pcmcia/pcmciavar.h> 91 #include <dev/pcmcia/pcmciareg.h> 92 #include <dev/pcmcia/pcmciadevs.h> 93 94 #include <dev/ic/comreg.h> 95 #include <dev/ic/comvar.h> 96 97 #include <dev/isa/isareg.h> 98 99 struct com_dev { 100 char *cis1_info[4]; 101 }; 102 103 /* Devices that we need to match by CIS strings */ 104 static struct com_dev com_devs[] = { 105 { PCMCIA_CIS_MEGAHERTZ_XJ2288 }, 106 }; 107 108 109 static int com_devs_size = sizeof(com_devs) / sizeof(com_devs[0]); 110 static struct com_dev *com_dev_match __P((struct pcmcia_card *)); 111 112 int com_pcmcia_match __P((struct device *, struct cfdata *, void *)); 113 int com_pcmcia_validate_config __P((struct pcmcia_config_entry *)); 114 void com_pcmcia_attach __P((struct device *, struct device *, void *)); 115 int com_pcmcia_detach __P((struct device *, int)); 116 void com_pcmcia_cleanup __P((void *)); 117 118 int com_pcmcia_enable __P((struct com_softc *)); 119 void com_pcmcia_disable __P((struct com_softc *)); 120 121 struct com_pcmcia_softc { 122 struct com_softc sc_com; /* real "com" softc */ 123 124 /* PCMCIA-specific goo */ 125 struct pcmcia_function *sc_pf; /* our PCMCIA function */ 126 void *sc_ih; /* interrupt handler */ 127 int sc_attached; 128 }; 129 130 CFATTACH_DECL(com_pcmcia, sizeof(struct com_pcmcia_softc), 131 com_pcmcia_match, com_pcmcia_attach, com_pcmcia_detach, com_activate); 132 133 /* Look for pcmcia cards with particular CIS strings */ 134 static struct com_dev * 135 com_dev_match(card) 136 struct pcmcia_card *card; 137 { 138 int i, j; 139 140 for (i = 0; i < com_devs_size; i++) { 141 for (j = 0; j < 4; j++) 142 if (com_devs[i].cis1_info[j] && 143 strcmp(com_devs[i].cis1_info[j], 144 card->cis1_info[j]) != 0) 145 break; 146 if (j == 4) 147 return &com_devs[i]; 148 } 149 150 return NULL; 151 } 152 153 154 int 155 com_pcmcia_match(parent, match, aux) 156 struct device *parent; 157 struct cfdata *match; 158 void *aux; 159 { 160 int comportmask; 161 struct pcmcia_attach_args *pa = aux; 162 struct pcmcia_config_entry *cfe; 163 164 /* 1. Does it claim to be a serial device? */ 165 if (pa->pf->function == PCMCIA_FUNCTION_SERIAL) 166 return 1; 167 168 /* 2. Does it have all four 'standard' port ranges? */ 169 comportmask = 0; 170 SIMPLEQ_FOREACH(cfe, &pa->pf->cfe_head, cfe_list) { 171 switch (cfe->iospace[0].start) { 172 case IO_COM1: 173 comportmask |= 1; 174 break; 175 case IO_COM2: 176 comportmask |= 2; 177 break; 178 case IO_COM3: 179 comportmask |= 4; 180 break; 181 case IO_COM4: 182 comportmask |= 8; 183 break; 184 } 185 } 186 187 if (comportmask == 15) 188 return 1; 189 190 /* 3. Is this a card we know about? */ 191 if (com_dev_match(pa->card) != NULL) 192 return 1; 193 194 return 0; 195 } 196 197 int 198 com_pcmcia_validate_config(cfe) 199 struct pcmcia_config_entry *cfe; 200 { 201 if (cfe->iftype != PCMCIA_IFTYPE_IO || 202 cfe->num_iospace != 1) 203 return (EINVAL); 204 /* Some cards have a memory space, but we don't use it. */ 205 cfe->num_memspace = 0; 206 /* Some cards don't have IO8 in their CIS. */ 207 cfe->flags |= PCMCIA_CFE_IO8; 208 return (0); 209 } 210 211 void 212 com_pcmcia_attach(parent, self, aux) 213 struct device *parent, *self; 214 void *aux; 215 { 216 struct com_pcmcia_softc *psc = (void *) self; 217 struct com_softc *sc = &psc->sc_com; 218 struct pcmcia_attach_args *pa = aux; 219 struct pcmcia_config_entry *cfe; 220 int error; 221 222 psc->sc_pf = pa->pf; 223 224 error = pcmcia_function_configure(pa->pf, com_pcmcia_validate_config); 225 if (error) { 226 aprint_error("%s: configure failed, error=%d\n", self->dv_xname, 227 error); 228 return; 229 } 230 231 cfe = pa->pf->cfe; 232 sc->sc_iot = cfe->iospace[0].handle.iot; 233 sc->sc_ioh = cfe->iospace[0].handle.ioh; 234 235 error = com_pcmcia_enable(sc); 236 if (error) { 237 aprint_error("%s: enable failed, error=%d\n", self->dv_xname, 238 error); 239 goto fail; 240 } 241 242 sc->enabled = 1; 243 244 sc->sc_iobase = -1; 245 sc->sc_frequency = COM_FREQ; 246 247 sc->enable = com_pcmcia_enable; 248 sc->disable = com_pcmcia_disable; 249 250 aprint_normal("%s", self->dv_xname); 251 252 com_attach_subr(sc); 253 254 sc->enabled = 0; 255 256 psc->sc_attached = 1; 257 com_pcmcia_disable(sc); 258 return; 259 260 fail: 261 pcmcia_function_unconfigure(pa->pf); 262 } 263 264 int 265 com_pcmcia_detach(self, flags) 266 struct device *self; 267 int flags; 268 { 269 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) self; 270 int error; 271 272 if (!psc->sc_attached) 273 return (0); 274 275 if ((error = com_detach(self, flags)) != 0) 276 return error; 277 278 pcmcia_function_unconfigure(psc->sc_pf); 279 return (0); 280 } 281 282 int 283 com_pcmcia_enable(sc) 284 struct com_softc *sc; 285 { 286 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc; 287 struct pcmcia_function *pf = psc->sc_pf; 288 int error; 289 290 /* establish the interrupt. */ 291 psc->sc_ih = pcmcia_intr_establish(pf, IPL_SERIAL, comintr, sc); 292 if (psc->sc_ih == NULL) { 293 printf("%s: couldn't establish interrupt\n", 294 sc->sc_dev.dv_xname); 295 return (1); 296 } 297 298 if ((error = pcmcia_function_enable(pf)) != 0) { 299 pcmcia_intr_disestablish(pf, psc->sc_ih); 300 psc->sc_ih = 0; 301 return (error); 302 } 303 304 if ((psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3C562) || 305 (psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3CXEM556) || 306 (psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3CXEM556INT)) { 307 int reg; 308 309 /* turn off the ethernet-disable bit */ 310 reg = pcmcia_ccr_read(pf, PCMCIA_CCR_OPTION); 311 if (reg & 0x08) { 312 reg &= ~0x08; 313 pcmcia_ccr_write(pf, PCMCIA_CCR_OPTION, reg); 314 } 315 } 316 317 return (0); 318 } 319 320 void 321 com_pcmcia_disable(sc) 322 struct com_softc *sc; 323 { 324 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc; 325 326 pcmcia_function_disable(psc->sc_pf); 327 pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih); 328 psc->sc_ih = 0; 329 } 330
Indexes created Tue Oct 28 12:10:06 GMT 2025