com_pcmcia.c revision 1.29
1 /* $NetBSD: com_pcmcia.c,v 1.29 2002/06/01 23:51:00 lukem Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 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. All advertising materials mentioning features or use of this software 52 * must display the following acknowledgement: 53 * This product includes software developed by the University of 54 * California, Berkeley and its contributors. 55 * 4. Neither the name of the University nor the names of its contributors 56 * may be used to endorse or promote products derived from this software 57 * without specific prior written permission. 58 * 59 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 60 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 61 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 62 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 63 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 64 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 65 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 66 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 67 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 68 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 69 * SUCH DAMAGE. 70 * 71 * @(#)com.c 7.5 (Berkeley) 5/16/91 72 */ 73 74 #include <sys/cdefs.h> 75 __KERNEL_RCSID(0, "$NetBSD: com_pcmcia.c,v 1.29 2002/06/01 23:51:00 lukem Exp $"); 76 77 #include <sys/param.h> 78 #include <sys/systm.h> 79 #include <sys/ioctl.h> 80 #include <sys/select.h> 81 #include <sys/tty.h> 82 #include <sys/proc.h> 83 #include <sys/user.h> 84 #include <sys/conf.h> 85 #include <sys/file.h> 86 #include <sys/uio.h> 87 #include <sys/kernel.h> 88 #include <sys/syslog.h> 89 #include <sys/device.h> 90 91 #include <machine/intr.h> 92 #include <machine/bus.h> 93 94 #include <dev/pcmcia/pcmciavar.h> 95 #include <dev/pcmcia/pcmciareg.h> 96 #include <dev/pcmcia/pcmciadevs.h> 97 98 #include <dev/ic/comreg.h> 99 #include <dev/ic/comvar.h> 100 101 #include <dev/isa/isareg.h> 102 103 struct com_dev { 104 char *name; 105 char *cis1_info[4]; 106 }; 107 108 /* Devices that we need to match by CIS strings */ 109 static struct com_dev com_devs[] = { 110 { PCMCIA_STR_MEGAHERTZ_XJ2288, PCMCIA_CIS_MEGAHERTZ_XJ2288 }, 111 }; 112 113 114 static int com_devs_size = sizeof(com_devs) / sizeof(com_devs[0]); 115 static struct com_dev *com_dev_match __P((struct pcmcia_card *)); 116 117 int com_pcmcia_match __P((struct device *, struct cfdata *, void *)); 118 void com_pcmcia_attach __P((struct device *, struct device *, void *)); 119 int com_pcmcia_detach __P((struct device *, int)); 120 void com_pcmcia_cleanup __P((void *)); 121 122 int com_pcmcia_enable __P((struct com_softc *)); 123 void com_pcmcia_disable __P((struct com_softc *)); 124 int com_pcmcia_enable1 __P((struct com_softc *)); 125 void com_pcmcia_disable1 __P((struct com_softc *)); 126 127 struct com_pcmcia_softc { 128 struct com_softc sc_com; /* real "com" softc */ 129 130 /* PCMCIA-specific goo */ 131 struct pcmcia_io_handle sc_pcioh; /* PCMCIA i/o space info */ 132 int sc_io_window; /* our i/o window */ 133 struct pcmcia_function *sc_pf; /* our PCMCIA function */ 134 void *sc_ih; /* interrupt handler */ 135 }; 136 137 struct cfattach com_pcmcia_ca = { 138 sizeof(struct com_pcmcia_softc), com_pcmcia_match, com_pcmcia_attach, 139 com_pcmcia_detach, com_activate 140 }; 141 142 /* Look for pcmcia cards with particular CIS strings */ 143 static struct com_dev * 144 com_dev_match(card) 145 struct pcmcia_card *card; 146 { 147 int i, j; 148 149 for (i = 0; i < com_devs_size; i++) { 150 for (j = 0; j < 4; j++) 151 if (com_devs[i].cis1_info[j] && 152 strcmp(com_devs[i].cis1_info[j], 153 card->cis1_info[j]) != 0) 154 break; 155 if (j == 4) 156 return &com_devs[i]; 157 } 158 159 return NULL; 160 } 161 162 163 int 164 com_pcmcia_match(parent, match, aux) 165 struct device *parent; 166 struct cfdata *match; 167 void *aux; 168 { 169 int comportmask; 170 struct pcmcia_attach_args *pa = aux; 171 struct pcmcia_config_entry *cfe; 172 173 /* 1. Does it claim to be a serial device? */ 174 if (pa->pf->function == PCMCIA_FUNCTION_SERIAL) 175 return 1; 176 177 /* 2. Does it have all four 'standard' port ranges? */ 178 comportmask = 0; 179 SIMPLEQ_FOREACH(cfe, &pa->pf->cfe_head, cfe_list) { 180 switch (cfe->iospace[0].start) { 181 case IO_COM1: 182 comportmask |= 1; 183 break; 184 case IO_COM2: 185 comportmask |= 2; 186 break; 187 case IO_COM3: 188 comportmask |= 4; 189 break; 190 case IO_COM4: 191 comportmask |= 8; 192 break; 193 } 194 } 195 196 if (comportmask == 15) 197 return 1; 198 199 /* 3. Is this a card we know about? */ 200 if (com_dev_match(pa->card) != NULL) 201 return 1; 202 203 return 0; 204 } 205 206 void 207 com_pcmcia_attach(parent, self, aux) 208 struct device *parent, *self; 209 void *aux; 210 { 211 struct com_pcmcia_softc *psc = (void *) self; 212 struct com_softc *sc = &psc->sc_com; 213 struct pcmcia_attach_args *pa = aux; 214 struct pcmcia_config_entry *cfe; 215 int autoalloc = 0; 216 217 psc->sc_pf = pa->pf; 218 219 psc->sc_io_window = -1; 220 221 retry: 222 /* find a cfe we can use */ 223 224 SIMPLEQ_FOREACH(cfe, &pa->pf->cfe_head, cfe_list) { 225 #if 0 226 /* 227 * Some modem cards (e.g. Xircom CM33) also have 228 * mem space. Don't bother with this check. 229 */ 230 if (cfe->num_memspace != 0) 231 continue; 232 #endif 233 234 if (cfe->num_iospace != 1) 235 continue; 236 237 if (autoalloc == 0) { 238 /* 239 * cfe->iomask == 3 is our test for the "generic" 240 * config table entry, which we want to avoid on the 241 * first pass and use exclusively on the second pass. 242 */ 243 if ((cfe->iomask != 3) && 244 (cfe->iospace[0].start != 0)) { 245 if (!pcmcia_io_alloc(pa->pf, 246 cfe->iospace[0].start, 247 cfe->iospace[0].length, 0, 248 &psc->sc_pcioh)) { 249 goto found; 250 } 251 } 252 } else { 253 if (cfe->iomask == 3) { 254 if (!pcmcia_io_alloc(pa->pf, 0, 255 cfe->iospace[0].length, 256 cfe->iospace[0].length, &psc->sc_pcioh)) { 257 goto found; 258 } 259 } 260 } 261 } 262 if (autoalloc == 0) { 263 autoalloc = 1; 264 goto retry; 265 } else if (!cfe) { 266 printf(": can't allocate i/o space\n"); 267 return; 268 } 269 found: 270 /* Enable the card. */ 271 pcmcia_function_init(pa->pf, cfe); 272 if (com_pcmcia_enable1(sc)) 273 printf(": function enable failed\n"); 274 275 sc->enabled = 1; 276 277 /* map in the io space */ 278 279 if (pcmcia_io_map(pa->pf, ((cfe->flags & PCMCIA_CFE_IO16) ? 280 PCMCIA_WIDTH_IO16 : PCMCIA_WIDTH_IO8), 0, psc->sc_pcioh.size, 281 &psc->sc_pcioh, &psc->sc_io_window)) { 282 printf(": can't map i/o space\n"); 283 return; 284 } 285 sc->sc_iot = psc->sc_pcioh.iot; 286 sc->sc_ioh = psc->sc_pcioh.ioh; 287 288 sc->sc_iobase = -1; 289 sc->sc_frequency = COM_FREQ; 290 291 sc->enable = com_pcmcia_enable; 292 sc->disable = com_pcmcia_disable; 293 294 printf(": serial device\n%s", sc->sc_dev.dv_xname); 295 296 com_attach_subr(sc); 297 298 sc->enabled = 0; 299 300 com_pcmcia_disable1(sc); 301 } 302 303 int 304 com_pcmcia_detach(self, flags) 305 struct device *self; 306 int flags; 307 { 308 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) self; 309 int error; 310 311 /* Unmap our i/o window. */ 312 if (psc->sc_io_window == -1) { 313 printf("%s: I/O window not allocated.", 314 psc->sc_com.sc_dev.dv_xname); 315 return 0; 316 } 317 318 if ((error = com_detach(self, flags)) != 0) 319 return error; 320 321 /* Unmap our i/o window. */ 322 pcmcia_io_unmap(psc->sc_pf, psc->sc_io_window); 323 324 /* Free our i/o space. */ 325 pcmcia_io_free(psc->sc_pf, &psc->sc_pcioh); 326 327 return 0; 328 } 329 330 int 331 com_pcmcia_enable(sc) 332 struct com_softc *sc; 333 { 334 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc; 335 struct pcmcia_function *pf = psc->sc_pf; 336 int error; 337 338 if ((error = com_pcmcia_enable1(sc)) != 0) 339 return error; 340 341 /* establish the interrupt. */ 342 psc->sc_ih = pcmcia_intr_establish(pf, IPL_SERIAL, comintr, sc); 343 if (psc->sc_ih == NULL) { 344 printf("%s: couldn't establish interrupt\n", 345 sc->sc_dev.dv_xname); 346 com_pcmcia_disable1(sc); 347 return 1; 348 } 349 return 0; 350 } 351 352 int 353 com_pcmcia_enable1(sc) 354 struct com_softc *sc; 355 { 356 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc; 357 struct pcmcia_function *pf = psc->sc_pf; 358 int ret; 359 360 if ((ret = pcmcia_function_enable(pf)) != 0) 361 return ret; 362 363 if ((psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3C562) || 364 (psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3CXEM556) || 365 (psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3CXEM556INT)) { 366 int reg; 367 368 /* turn off the ethernet-disable bit */ 369 370 reg = pcmcia_ccr_read(pf, PCMCIA_CCR_OPTION); 371 if (reg & 0x08) { 372 reg &= ~0x08; 373 pcmcia_ccr_write(pf, PCMCIA_CCR_OPTION, reg); 374 } 375 } 376 return ret; 377 } 378 379 void 380 com_pcmcia_disable(sc) 381 struct com_softc *sc; 382 { 383 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc; 384 385 pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih); 386 com_pcmcia_disable1(sc); 387 } 388 389 void 390 com_pcmcia_disable1(sc) 391 struct com_softc *sc; 392 { 393 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc; 394 395 pcmcia_function_disable(psc->sc_pf); 396 } 397
Indexes created Mon Sep 29 03:10:08 GMT 2025