com_pcmcia.c revision 1.20
1 /* $NetBSD: com_pcmcia.c,v 1.20 1999/05/23 00:48:46 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/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, PCMCIA_CIS_MEGAHERTZ_XJ2288 }, 109 }; 110 111 112 static int com_devs_size = sizeof(com_devs) / sizeof(com_devs[0]); 113 static struct com_dev *com_dev_match __P((struct pcmcia_card *)); 114 115 int com_pcmcia_match __P((struct device *, struct cfdata *, void *)); 116 void com_pcmcia_attach __P((struct device *, struct device *, void *)); 117 int com_pcmcia_detach __P((struct device *, int)); 118 void com_pcmcia_cleanup __P((void *)); 119 120 int com_pcmcia_enable __P((struct com_softc *)); 121 void com_pcmcia_disable __P((struct com_softc *)); 122 int com_pcmcia_enable1 __P((struct com_softc *)); 123 void com_pcmcia_disable1 __P((struct com_softc *)); 124 125 struct com_pcmcia_softc { 126 struct com_softc sc_com; /* real "com" softc */ 127 128 /* PCMCIA-specific goo */ 129 struct pcmcia_io_handle sc_pcioh; /* PCMCIA i/o space info */ 130 int sc_io_window; /* our i/o window */ 131 struct pcmcia_function *sc_pf; /* our PCMCIA function */ 132 void *sc_ih; /* interrupt handler */ 133 }; 134 135 struct cfattach com_pcmcia_ca = { 136 sizeof(struct com_pcmcia_softc), com_pcmcia_match, com_pcmcia_attach, 137 com_pcmcia_detach, com_activate 138 }; 139 140 /* Look for pcmcia cards with particular CIS strings */ 141 static struct com_dev * 142 com_dev_match(card) 143 struct pcmcia_card *card; 144 { 145 int i, j; 146 147 for (i = 0; i < com_devs_size; i++) { 148 for (j = 0; j < 4; j++) 149 if (com_devs[i].cis1_info[j] && 150 strcmp(com_devs[i].cis1_info[j], 151 card->cis1_info[j]) != 0) 152 break; 153 if (j == 4) 154 return &com_devs[i]; 155 } 156 157 return NULL; 158 } 159 160 161 int 162 com_pcmcia_match(parent, match, aux) 163 struct device *parent; 164 struct cfdata *match; 165 void *aux; 166 { 167 int comportmask; 168 struct pcmcia_attach_args *pa = aux; 169 struct pcmcia_config_entry *cfe; 170 171 /* 1. Does it claim to be a serial device? */ 172 if (pa->pf->function == PCMCIA_FUNCTION_SERIAL) 173 return 1; 174 175 /* 2. Does it have all four 'standard' port ranges? */ 176 comportmask = 0; 177 for (cfe = pa->pf->cfe_head.sqh_first; cfe; 178 cfe = cfe->cfe_list.sqe_next) { 179 switch (cfe->iospace[0].start) { 180 case IO_COM1: 181 comportmask |= 1; 182 break; 183 case IO_COM2: 184 comportmask |= 2; 185 break; 186 case IO_COM3: 187 comportmask |= 4; 188 break; 189 case IO_COM4: 190 comportmask |= 8; 191 break; 192 } 193 } 194 195 if (comportmask == 15) 196 return 1; 197 198 /* 3. Is this a card we know about? */ 199 if (com_dev_match(pa->card) != NULL) 200 return 1; 201 202 return 0; 203 } 204 205 void 206 com_pcmcia_attach(parent, self, aux) 207 struct device *parent, *self; 208 void *aux; 209 { 210 struct com_pcmcia_softc *psc = (void *) self; 211 struct com_softc *sc = &psc->sc_com; 212 struct pcmcia_attach_args *pa = aux; 213 struct pcmcia_config_entry *cfe; 214 int autoalloc = 0; 215 216 psc->sc_pf = pa->pf; 217 218 retry: 219 /* find a cfe we can use */ 220 221 for (cfe = pa->pf->cfe_head.sqh_first; cfe; 222 cfe = cfe->cfe_list.sqe_next) { 223 #if 0 224 /* 225 * Some modem cards (e.g. Xircom CM33) also have 226 * mem space. Don't bother with this check. 227 */ 228 if (cfe->num_memspace != 0) 229 continue; 230 #endif 231 232 if (cfe->num_iospace != 1) 233 continue; 234 235 if (autoalloc == 0) { 236 /* 237 * cfe->iomask == 3 is our test for the "generic" 238 * config table entry, which we want to avoid on the 239 * first pass and use exclusively on the second pass. 240 */ 241 if ((cfe->iomask != 3) && 242 (cfe->iospace[0].start != 0)) { 243 if (!pcmcia_io_alloc(pa->pf, 244 cfe->iospace[0].start, 245 cfe->iospace[0].length, 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, &psc->sc_pcioh)) { 255 goto found; 256 } 257 } 258 } 259 } 260 if (autoalloc == 0) { 261 autoalloc = 1; 262 goto retry; 263 } else if (!cfe) { 264 printf(": can't allocate i/o space\n"); 265 return; 266 } 267 found: 268 sc->sc_iot = psc->sc_pcioh.iot; 269 sc->sc_ioh = psc->sc_pcioh.ioh; 270 271 /* Enable the card. */ 272 pcmcia_function_init(pa->pf, cfe); 273 if (com_pcmcia_enable1(sc)) 274 printf(": function enable failed\n"); 275 276 sc->enabled = 1; 277 278 /* map in the io space */ 279 280 if (pcmcia_io_map(pa->pf, ((cfe->flags & PCMCIA_CFE_IO16) ? 281 PCMCIA_WIDTH_IO16 : PCMCIA_WIDTH_IO8), 0, psc->sc_pcioh.size, 282 &psc->sc_pcioh, &psc->sc_io_window)) { 283 printf(": can't map i/o space\n"); 284 return; 285 } 286 sc->sc_iobase = -1; 287 sc->sc_frequency = COM_FREQ; 288 289 sc->enable = com_pcmcia_enable; 290 sc->disable = com_pcmcia_disable; 291 292 printf(": serial device\n%s", sc->sc_dev.dv_xname); 293 294 com_attach_subr(sc); 295 296 sc->enabled = 0; 297 298 com_pcmcia_disable1(sc); 299 } 300 301 int 302 com_pcmcia_detach(self, flags) 303 struct device *self; 304 int flags; 305 { 306 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) self; 307 int error; 308 309 if ((error = com_detach(self, flags)) != 0) 310 return error; 311 312 /* Unmap our i/o window. */ 313 pcmcia_io_unmap(psc->sc_pf, psc->sc_io_window); 314 315 /* Free our i/o space. */ 316 pcmcia_io_free(psc->sc_pf, &psc->sc_pcioh); 317 318 return 0; 319 } 320 321 int 322 com_pcmcia_enable(sc) 323 struct com_softc *sc; 324 { 325 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc; 326 struct pcmcia_function *pf = psc->sc_pf; 327 328 /* establish the interrupt. */ 329 psc->sc_ih = pcmcia_intr_establish(pf, IPL_SERIAL, comintr, sc); 330 if (psc->sc_ih == NULL) { 331 printf("%s: couldn't establish interrupt\n", 332 sc->sc_dev.dv_xname); 333 return 1; 334 } 335 return com_pcmcia_enable1(sc); 336 } 337 338 int 339 com_pcmcia_enable1(sc) 340 struct com_softc *sc; 341 { 342 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc; 343 struct pcmcia_function *pf = psc->sc_pf; 344 int ret; 345 346 if ((ret = pcmcia_function_enable(pf)) != 0) 347 return ret; 348 349 if ((psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3C562) || 350 (psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3CXEM556)) { 351 int reg; 352 353 /* turn off the ethernet-disable bit */ 354 355 reg = pcmcia_ccr_read(pf, PCMCIA_CCR_OPTION); 356 if (reg & 0x08) { 357 reg &= ~0x08; 358 pcmcia_ccr_write(pf, PCMCIA_CCR_OPTION, reg); 359 } 360 } 361 return ret; 362 } 363 364 void 365 com_pcmcia_disable(sc) 366 struct com_softc *sc; 367 { 368 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc; 369 370 com_pcmcia_disable1(sc); 371 pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih); 372 } 373 374 void 375 com_pcmcia_disable1(sc) 376 struct com_softc *sc; 377 { 378 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc; 379 380 pcmcia_function_disable(psc->sc_pf); 381 } 382
Indexes created Mon Sep 29 03:10:08 GMT 2025