com_pcmcia.c revision 1.35
1 /* $NetBSD: com_pcmcia.c,v 1.35 2004/07/06 13:43:00 mycroft 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. 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 1.35 2004/07/06 13:43:00 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 *name; 101 char *cis1_info[4]; 102 }; 103 104 /* Devices that we need to match by CIS strings */ 105 static struct com_dev com_devs[] = { 106 { PCMCIA_STR_MEGAHERTZ_XJ2288, PCMCIA_CIS_MEGAHERTZ_XJ2288 }, 107 }; 108 109 110 static int com_devs_size = sizeof(com_devs) / sizeof(com_devs[0]); 111 static struct com_dev *com_dev_match __P((struct pcmcia_card *)); 112 113 int com_pcmcia_match __P((struct device *, struct cfdata *, void *)); 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 int com_pcmcia_enable1 __P((struct com_softc *)); 121 void com_pcmcia_disable1 __P((struct com_softc *)); 122 123 struct com_pcmcia_softc { 124 struct com_softc sc_com; /* real "com" softc */ 125 126 /* PCMCIA-specific goo */ 127 struct pcmcia_io_handle sc_pcioh; /* PCMCIA i/o space info */ 128 int sc_io_window; /* our i/o window */ 129 struct pcmcia_function *sc_pf; /* our PCMCIA function */ 130 void *sc_ih; /* interrupt handler */ 131 }; 132 133 CFATTACH_DECL(com_pcmcia, sizeof(struct com_pcmcia_softc), 134 com_pcmcia_match, com_pcmcia_attach, com_pcmcia_detach, com_activate); 135 136 /* Look for pcmcia cards with particular CIS strings */ 137 static struct com_dev * 138 com_dev_match(card) 139 struct pcmcia_card *card; 140 { 141 int i, j; 142 143 for (i = 0; i < com_devs_size; i++) { 144 for (j = 0; j < 4; j++) 145 if (com_devs[i].cis1_info[j] && 146 strcmp(com_devs[i].cis1_info[j], 147 card->cis1_info[j]) != 0) 148 break; 149 if (j == 4) 150 return &com_devs[i]; 151 } 152 153 return NULL; 154 } 155 156 157 int 158 com_pcmcia_match(parent, match, aux) 159 struct device *parent; 160 struct cfdata *match; 161 void *aux; 162 { 163 int comportmask; 164 struct pcmcia_attach_args *pa = aux; 165 struct pcmcia_config_entry *cfe; 166 167 /* 1. Does it claim to be a serial device? */ 168 if (pa->pf->function == PCMCIA_FUNCTION_SERIAL) 169 return 1; 170 171 /* 2. Does it have all four 'standard' port ranges? */ 172 comportmask = 0; 173 SIMPLEQ_FOREACH(cfe, &pa->pf->cfe_head, cfe_list) { 174 switch (cfe->iospace[0].start) { 175 case IO_COM1: 176 comportmask |= 1; 177 break; 178 case IO_COM2: 179 comportmask |= 2; 180 break; 181 case IO_COM3: 182 comportmask |= 4; 183 break; 184 case IO_COM4: 185 comportmask |= 8; 186 break; 187 } 188 } 189 190 if (comportmask == 15) 191 return 1; 192 193 /* 3. Is this a card we know about? */ 194 if (com_dev_match(pa->card) != NULL) 195 return 1; 196 197 return 0; 198 } 199 200 void 201 com_pcmcia_attach(parent, self, aux) 202 struct device *parent, *self; 203 void *aux; 204 { 205 struct com_pcmcia_softc *psc = (void *) self; 206 struct com_softc *sc = &psc->sc_com; 207 struct pcmcia_attach_args *pa = aux; 208 struct pcmcia_config_entry *cfe; 209 int autoalloc = 0; 210 211 psc->sc_pf = pa->pf; 212 213 psc->sc_io_window = -1; 214 215 retry: 216 /* find a cfe we can use */ 217 218 SIMPLEQ_FOREACH(cfe, &pa->pf->cfe_head, cfe_list) { 219 #if 0 220 /* 221 * Some modem cards (e.g. Xircom CM33) also have 222 * mem space. Don't bother with this check. 223 */ 224 if (cfe->num_memspace != 0) 225 continue; 226 #endif 227 228 if (cfe->num_iospace != 1) 229 continue; 230 231 if (autoalloc == 0) { 232 /* 233 * cfe->iomask == 3 is our test for the "generic" 234 * config table entry, which we want to avoid on the 235 * first pass and use exclusively on the second pass. 236 */ 237 if ((cfe->iomask != 3) && 238 (cfe->iospace[0].start != 0)) { 239 if (!pcmcia_io_alloc(pa->pf, 240 cfe->iospace[0].start, 241 cfe->iospace[0].length, 242 cfe->iospace[0].length, &psc->sc_pcioh)) { 243 goto found; 244 } 245 } 246 } else { 247 if (cfe->iomask == 3) { 248 if (!pcmcia_io_alloc(pa->pf, 0, 249 cfe->iospace[0].length, 250 cfe->iospace[0].length, &psc->sc_pcioh)) { 251 goto found; 252 } 253 } 254 } 255 } 256 if (autoalloc == 0) { 257 autoalloc = 1; 258 goto retry; 259 } else if (!cfe) { 260 printf(": can't allocate i/o space\n"); 261 return; 262 } 263 found: 264 /* Enable the card. */ 265 pcmcia_function_init(pa->pf, cfe); 266 if (com_pcmcia_enable1(sc)) 267 printf(": function enable failed\n"); 268 269 sc->enabled = 1; 270 271 /* map in the io space */ 272 273 if (pcmcia_io_map(pa->pf, ((cfe->flags & PCMCIA_CFE_IO16) ? 274 PCMCIA_WIDTH_IO16 : PCMCIA_WIDTH_IO8), 0, psc->sc_pcioh.size, 275 &psc->sc_pcioh, &psc->sc_io_window)) { 276 printf(": can't map i/o space\n"); 277 return; 278 } 279 sc->sc_iot = psc->sc_pcioh.iot; 280 sc->sc_ioh = psc->sc_pcioh.ioh; 281 282 sc->sc_iobase = -1; 283 sc->sc_frequency = COM_FREQ; 284 285 sc->enable = com_pcmcia_enable; 286 sc->disable = com_pcmcia_disable; 287 288 printf(": serial device\n%s", sc->sc_dev.dv_xname); 289 290 com_attach_subr(sc); 291 292 sc->enabled = 0; 293 294 com_pcmcia_disable1(sc); 295 } 296 297 int 298 com_pcmcia_detach(self, flags) 299 struct device *self; 300 int flags; 301 { 302 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) self; 303 int error; 304 305 /* Unmap our i/o window. */ 306 if (psc->sc_io_window == -1) { 307 printf("%s: I/O window not allocated.\n", 308 psc->sc_com.sc_dev.dv_xname); 309 return 0; 310 } 311 312 if ((error = com_detach(self, flags)) != 0) 313 return error; 314 315 /* Unmap our i/o window. */ 316 pcmcia_io_unmap(psc->sc_pf, psc->sc_io_window); 317 318 /* Free our i/o space. */ 319 pcmcia_io_free(psc->sc_pf, &psc->sc_pcioh); 320 321 return 0; 322 } 323 324 int 325 com_pcmcia_enable(sc) 326 struct com_softc *sc; 327 { 328 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc; 329 struct pcmcia_function *pf = psc->sc_pf; 330 int error; 331 332 if ((error = com_pcmcia_enable1(sc)) != 0) 333 return error; 334 335 /* establish the interrupt. */ 336 psc->sc_ih = pcmcia_intr_establish(pf, IPL_SERIAL, comintr, sc); 337 if (psc->sc_ih == NULL) { 338 printf("%s: couldn't establish interrupt\n", 339 sc->sc_dev.dv_xname); 340 com_pcmcia_disable1(sc); 341 return 1; 342 } 343 return 0; 344 } 345 346 int 347 com_pcmcia_enable1(sc) 348 struct com_softc *sc; 349 { 350 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc; 351 struct pcmcia_function *pf = psc->sc_pf; 352 int ret; 353 354 if ((ret = pcmcia_function_enable(pf)) != 0) 355 return ret; 356 357 if ((psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3C562) || 358 (psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3CXEM556) || 359 (psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3CXEM556INT)) { 360 int reg; 361 362 /* turn off the ethernet-disable bit */ 363 364 reg = pcmcia_ccr_read(pf, PCMCIA_CCR_OPTION); 365 if (reg & 0x08) { 366 reg &= ~0x08; 367 pcmcia_ccr_write(pf, PCMCIA_CCR_OPTION, reg); 368 } 369 } 370 return ret; 371 } 372 373 void 374 com_pcmcia_disable(sc) 375 struct com_softc *sc; 376 { 377 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc; 378 379 pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih); 380 com_pcmcia_disable1(sc); 381 } 382 383 void 384 com_pcmcia_disable1(sc) 385 struct com_softc *sc; 386 { 387 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc; 388 389 pcmcia_function_disable(psc->sc_pf); 390 } 391
Indexes created Mon Sep 29 03:10:08 GMT 2025