1 /* $NetBSD: com_pcmcia.c,v 1.28 2002/04/13 17:06:53 christos 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 1.28 2002/04/13 17:06:53 christos 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 for (cfe = pa->pf->cfe_head.sqh_first; cfe; 180 cfe = cfe->cfe_list.sqe_next) { 181 switch (cfe->iospace[0].start) { 182 case IO_COM1: 183 comportmask |= 1; 184 break; 185 case IO_COM2: 186 comportmask |= 2; 187 break; 188 case IO_COM3: 189 comportmask |= 4; 190 break; 191 case IO_COM4: 192 comportmask |= 8; 193 break; 194 } 195 } 196 197 if (comportmask == 15) 198 return 1; 199 200 /* 3. Is this a card we know about? */ 201 if (com_dev_match(pa->card) != NULL) 202 return 1; 203 204 return 0; 205 } 206 207 void 208 com_pcmcia_attach(parent, self, aux) 209 struct device *parent, *self; 210 void *aux; 211 { 212 struct com_pcmcia_softc *psc = (void *) self; 213 struct com_softc *sc = &psc->sc_com; 214 struct pcmcia_attach_args *pa = aux; 215 struct pcmcia_config_entry *cfe; 216 int autoalloc = 0; 217 218 psc->sc_pf = pa->pf; 219 220 psc->sc_io_window = -1; 221 222 retry: 223 /* find a cfe we can use */ 224 225 for (cfe = pa->pf->cfe_head.sqh_first; cfe; 226 cfe = cfe->cfe_list.sqe_next) { 227 #if 0 228 /* 229 * Some modem cards (e.g. Xircom CM33) also have 230 * mem space. Don't bother with this check. 231 */ 232 if (cfe->num_memspace != 0) 233 continue; 234 #endif 235 236 if (cfe->num_iospace != 1) 237 continue; 238 239 if (autoalloc == 0) { 240 /* 241 * cfe->iomask == 3 is our test for the "generic" 242 * config table entry, which we want to avoid on the 243 * first pass and use exclusively on the second pass. 244 */ 245 if ((cfe->iomask != 3) && 246 (cfe->iospace[0].start != 0)) { 247 if (!pcmcia_io_alloc(pa->pf, 248 cfe->iospace[0].start, 249 cfe->iospace[0].length, 0, 250 &psc->sc_pcioh)) { 251 goto found; 252 } 253 } 254 } else { 255 if (cfe->iomask == 3) { 256 if (!pcmcia_io_alloc(pa->pf, 0, 257 cfe->iospace[0].length, 258 cfe->iospace[0].length, &psc->sc_pcioh)) { 259 goto found; 260 } 261 } 262 } 263 } 264 if (autoalloc == 0) { 265 autoalloc = 1; 266 goto retry; 267 } else if (!cfe) { 268 printf(": can't allocate i/o space\n"); 269 return; 270 } 271 found: 272 /* Enable the card. */ 273 pcmcia_function_init(pa->pf, cfe); 274 if (com_pcmcia_enable1(sc)) 275 printf(": function enable failed\n"); 276 277 sc->enabled = 1; 278 279 /* map in the io space */ 280 281 if (pcmcia_io_map(pa->pf, ((cfe->flags & PCMCIA_CFE_IO16) ? 282 PCMCIA_WIDTH_IO16 : PCMCIA_WIDTH_IO8), 0, psc->sc_pcioh.size, 283 &psc->sc_pcioh, &psc->sc_io_window)) { 284 printf(": can't map i/o space\n"); 285 return; 286 } 287 sc->sc_iot = psc->sc_pcioh.iot; 288 sc->sc_ioh = psc->sc_pcioh.ioh; 289 290 sc->sc_iobase = -1; 291 sc->sc_frequency = COM_FREQ; 292 293 sc->enable = com_pcmcia_enable; 294 sc->disable = com_pcmcia_disable; 295 296 printf(": serial device\n%s", sc->sc_dev.dv_xname); 297 298 com_attach_subr(sc); 299 300 sc->enabled = 0; 301 302 com_pcmcia_disable1(sc); 303 } 304 305 int 306 com_pcmcia_detach(self, flags) 307 struct device *self; 308 int flags; 309 { 310 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) self; 311 int error; 312 313 /* Unmap our i/o window. */ 314 if (psc->sc_io_window == -1) { 315 printf("%s: I/O window not allocated.", 316 psc->sc_com.sc_dev.dv_xname); 317 return 0; 318 } 319 320 if ((error = com_detach(self, flags)) != 0) 321 return error; 322 323 /* Unmap our i/o window. */ 324 pcmcia_io_unmap(psc->sc_pf, psc->sc_io_window); 325 326 /* Free our i/o space. */ 327 pcmcia_io_free(psc->sc_pf, &psc->sc_pcioh); 328 329 return 0; 330 } 331 332 int 333 com_pcmcia_enable(sc) 334 struct com_softc *sc; 335 { 336 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc; 337 struct pcmcia_function *pf = psc->sc_pf; 338 int error; 339 340 if ((error = com_pcmcia_enable1(sc)) != 0) 341 return error; 342 343 /* establish the interrupt. */ 344 psc->sc_ih = pcmcia_intr_establish(pf, IPL_SERIAL, comintr, sc); 345 if (psc->sc_ih == NULL) { 346 printf("%s: couldn't establish interrupt\n", 347 sc->sc_dev.dv_xname); 348 com_pcmcia_disable1(sc); 349 return 1; 350 } 351 return 0; 352 } 353 354 int 355 com_pcmcia_enable1(sc) 356 struct com_softc *sc; 357 { 358 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc; 359 struct pcmcia_function *pf = psc->sc_pf; 360 int ret; 361 362 if ((ret = pcmcia_function_enable(pf)) != 0) 363 return ret; 364 365 if ((psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3C562) || 366 (psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3CXEM556) || 367 (psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3CXEM556INT)) { 368 int reg; 369 370 /* turn off the ethernet-disable bit */ 371 372 reg = pcmcia_ccr_read(pf, PCMCIA_CCR_OPTION); 373 if (reg & 0x08) { 374 reg &= ~0x08; 375 pcmcia_ccr_write(pf, PCMCIA_CCR_OPTION, reg); 376 } 377 } 378 return ret; 379 } 380 381 void 382 com_pcmcia_disable(sc) 383 struct com_softc *sc; 384 { 385 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc; 386 387 pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih); 388 com_pcmcia_disable1(sc); 389 } 390 391 void 392 com_pcmcia_disable1(sc) 393 struct com_softc *sc; 394 { 395 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc; 396 397 pcmcia_function_disable(psc->sc_pf); 398 } 399