com_pcmcia.c revision 1.18
1 /* $NetBSD: com_pcmcia.c,v 1.18 1998/12/20 03:49:53 nathanw 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/param.h> 75 #include <sys/systm.h> 76 #include <sys/ioctl.h> 77 #include <sys/select.h> 78 #include <sys/tty.h> 79 #include <sys/proc.h> 80 #include <sys/user.h> 81 #include <sys/conf.h> 82 #include <sys/file.h> 83 #include <sys/uio.h> 84 #include <sys/kernel.h> 85 #include <sys/syslog.h> 86 #include <sys/types.h> 87 #include <sys/device.h> 88 89 #include <machine/intr.h> 90 #include <machine/bus.h> 91 92 #include <dev/pcmcia/pcmciavar.h> 93 #include <dev/pcmcia/pcmciareg.h> 94 #include <dev/pcmcia/pcmciadevs.h> 95 96 #include <dev/ic/comreg.h> 97 #include <dev/ic/comvar.h> 98 99 #include <dev/isa/isareg.h> 100 101 struct com_dev { 102 char *name; 103 char *cis1_info[4]; 104 }; 105 106 /* Devices that we need to match by CIS strings */ 107 static struct com_dev com_devs[] = { 108 { PCMCIA_STR_MEGAHERTZ_XJ2288, 109 PCMCIA_CIS_MEGAHERTZ_XJ2288 }, 110 }; 111 112 113 static int com_devs_size = sizeof(com_devs) / sizeof(com_devs[0]); 114 static struct com_dev *com_dev_match __P((struct pcmcia_card *)); 115 116 int com_pcmcia_match __P((struct device *, struct cfdata *, void *)); 117 void com_pcmcia_attach __P((struct device *, struct device *, void *)); 118 int com_pcmcia_detach __P((struct device *, int)); 119 void com_pcmcia_cleanup __P((void *)); 120 121 int com_pcmcia_enable __P((struct com_softc *)); 122 void com_pcmcia_disable __P((struct com_softc *)); 123 int com_pcmcia_enable1 __P((struct com_softc *)); 124 void com_pcmcia_disable1 __P((struct com_softc *)); 125 126 struct com_pcmcia_softc { 127 struct com_softc sc_com; /* real "com" softc */ 128 129 /* PCMCIA-specific goo */ 130 struct pcmcia_io_handle sc_pcioh; /* PCMCIA i/o space info */ 131 int sc_io_window; /* our i/o window */ 132 struct pcmcia_function *sc_pf; /* our PCMCIA function */ 133 void *sc_ih; /* interrupt handler */ 134 }; 135 136 struct cfattach com_pcmcia_ca = { 137 sizeof(struct com_pcmcia_softc), com_pcmcia_match, com_pcmcia_attach, 138 com_pcmcia_detach, com_activate 139 }; 140 141 /* Look for pcmcia cards with particular CIS strings */ 142 static struct com_dev * 143 com_dev_match(card) 144 struct pcmcia_card *card; 145 { 146 int i, j; 147 148 for (i = 0; i < com_devs_size; i++) { 149 for (j = 0; j < 4; j++) 150 if (com_devs[i].cis1_info[j] && 151 strcmp(com_devs[i].cis1_info[j], 152 card->cis1_info[j])) 153 break; 154 if (j == 4) 155 return &com_devs[i]; 156 } 157 158 return NULL; 159 } 160 161 162 int 163 com_pcmcia_match(parent, match, aux) 164 struct device *parent; 165 struct cfdata *match; 166 void *aux; 167 { 168 int comportmask; 169 struct pcmcia_attach_args *pa = aux; 170 struct pcmcia_config_entry *cfe; 171 172 /* 1. Does it claim to be a serial device? */ 173 if (pa->pf->function == PCMCIA_FUNCTION_SERIAL) 174 return 1; 175 176 /* 2. Does it have all four 'standard' port ranges? */ 177 comportmask = 0; 178 for (cfe = pa->pf->cfe_head.sqh_first; cfe; 179 cfe = cfe->cfe_list.sqe_next) { 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 retry: 220 /* find a cfe we can use */ 221 222 for (cfe = pa->pf->cfe_head.sqh_first; cfe; 223 cfe = cfe->cfe_list.sqe_next) { 224 #if 0 225 /* 226 * Some modem cards (e.g. Xircom CM33) also have 227 * mem space. Don't bother with this check. 228 */ 229 if (cfe->num_memspace != 0) 230 continue; 231 #endif 232 233 if (cfe->num_iospace != 1) 234 continue; 235 236 if (autoalloc == 0) { 237 /* 238 * cfe->iomask == 3 is our test for the "generic" config table 239 * entry, which we want to avoid on the first pass and use 240 * exclusively on the second pass. 241 */ 242 if (cfe->iomask != 3) { 243 if (!pcmcia_io_alloc(pa->pf, cfe->iospace[0].start, 244 cfe->iospace[0].length, 245 0, 246 &psc->sc_pcioh)) { 247 goto found; 248 } 249 } 250 } else { 251 if (cfe->iomask == 3) { 252 if (!pcmcia_io_alloc(pa->pf, 0, 253 cfe->iospace[0].length, 254 cfe->iospace[0].length, 255 &psc->sc_pcioh)) { 256 goto found; 257 } 258 } 259 } 260 } 261 if (autoalloc == 0) { 262 autoalloc = 1; 263 goto retry; 264 } else if (!cfe) { 265 printf(": can't allocate i/o space\n"); 266 return; 267 } 268 269 found: 270 sc->sc_iot = psc->sc_pcioh.iot; 271 sc->sc_ioh = psc->sc_pcioh.ioh; 272 273 /* Enable the card. */ 274 pcmcia_function_init(pa->pf, cfe); 275 if (com_pcmcia_enable1(sc)) 276 printf(": function enable failed\n"); 277 278 sc->enabled = 1; 279 280 /* map in the io space */ 281 282 if (pcmcia_io_map(pa->pf, ((cfe->flags & PCMCIA_CFE_IO16) ? 283 PCMCIA_WIDTH_IO16 : PCMCIA_WIDTH_IO8), 0, psc->sc_pcioh.size, 284 &psc->sc_pcioh, &psc->sc_io_window)) { 285 printf(": can't map i/o space\n"); 286 return; 287 } 288 289 sc->sc_iobase = -1; 290 sc->sc_frequency = COM_FREQ; 291 292 sc->enable = com_pcmcia_enable; 293 sc->disable = com_pcmcia_disable; 294 295 printf(": serial device\n%s", sc->sc_dev.dv_xname); 296 297 com_attach_subr(sc); 298 299 sc->enabled = 0; 300 301 com_pcmcia_disable1(sc); 302 } 303 304 int 305 com_pcmcia_detach(self, flags) 306 struct device *self; 307 int flags; 308 { 309 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *)self; 310 int error; 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; 330 331 /* establish the interrupt. */ 332 psc->sc_ih = pcmcia_intr_establish(pf, IPL_SERIAL, comintr, sc); 333 if (psc->sc_ih == NULL) { 334 printf("%s: couldn't establish interrupt\n", 335 sc->sc_dev.dv_xname); 336 return (1); 337 } 338 return com_pcmcia_enable1(sc); 339 } 340 341 int 342 com_pcmcia_enable1(sc) 343 struct com_softc *sc; 344 { 345 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc; 346 struct pcmcia_function *pf = psc->sc_pf; 347 int ret; 348 349 if ((ret = pcmcia_function_enable(pf))) 350 return(ret); 351 352 if (psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3C562) { 353 int reg; 354 355 /* turn off the ethernet-disable bit */ 356 357 reg = pcmcia_ccr_read(pf, PCMCIA_CCR_OPTION); 358 if (reg & 0x08) { 359 reg &= ~0x08; 360 pcmcia_ccr_write(pf, PCMCIA_CCR_OPTION, reg); 361 } 362 } 363 364 return(ret); 365 } 366 367 void 368 com_pcmcia_disable(sc) 369 struct com_softc *sc; 370 { 371 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc; 372 373 com_pcmcia_disable1(sc); 374 pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih); 375 } 376 377 void 378 com_pcmcia_disable1(sc) 379 struct com_softc *sc; 380 { 381 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc; 382 383 pcmcia_function_disable(psc->sc_pf); 384 } 385
Indexes created Mon Sep 29 21:09:56 GMT 2025