com_pcmcia.c revision 1.22
1 /* $NetBSD: com_pcmcia.c,v 1.22 2001/11/13 07:26:32 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 1.22 2001/11/13 07:26:32 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/types.h> 90 #include <sys/device.h> 91 92 #include <machine/intr.h> 93 #include <machine/bus.h> 94 95 #include <dev/pcmcia/pcmciavar.h> 96 #include <dev/pcmcia/pcmciareg.h> 97 #include <dev/pcmcia/pcmciadevs.h> 98 99 #include <dev/ic/comreg.h> 100 #include <dev/ic/comvar.h> 101 102 #include <dev/isa/isareg.h> 103 104 struct com_dev { 105 char *name; 106 char *cis1_info[4]; 107 }; 108 109 /* Devices that we need to match by CIS strings */ 110 static struct com_dev com_devs[] = { 111 { PCMCIA_STR_MEGAHERTZ_XJ2288, PCMCIA_CIS_MEGAHERTZ_XJ2288 }, 112 }; 113 114 115 static int com_devs_size = sizeof(com_devs) / sizeof(com_devs[0]); 116 static struct com_dev *com_dev_match __P((struct pcmcia_card *)); 117 118 int com_pcmcia_match __P((struct device *, struct cfdata *, void *)); 119 void com_pcmcia_attach __P((struct device *, struct device *, void *)); 120 int com_pcmcia_detach __P((struct device *, int)); 121 void com_pcmcia_cleanup __P((void *)); 122 123 int com_pcmcia_enable __P((struct com_softc *)); 124 void com_pcmcia_disable __P((struct com_softc *)); 125 int com_pcmcia_enable1 __P((struct com_softc *)); 126 void com_pcmcia_disable1 __P((struct com_softc *)); 127 128 struct com_pcmcia_softc { 129 struct com_softc sc_com; /* real "com" softc */ 130 131 /* PCMCIA-specific goo */ 132 struct pcmcia_io_handle sc_pcioh; /* PCMCIA i/o space info */ 133 int sc_io_window; /* our i/o window */ 134 struct pcmcia_function *sc_pf; /* our PCMCIA function */ 135 void *sc_ih; /* interrupt handler */ 136 }; 137 138 struct cfattach com_pcmcia_ca = { 139 sizeof(struct com_pcmcia_softc), com_pcmcia_match, com_pcmcia_attach, 140 com_pcmcia_detach, com_activate 141 }; 142 143 /* Look for pcmcia cards with particular CIS strings */ 144 static struct com_dev * 145 com_dev_match(card) 146 struct pcmcia_card *card; 147 { 148 int i, j; 149 150 for (i = 0; i < com_devs_size; i++) { 151 for (j = 0; j < 4; j++) 152 if (com_devs[i].cis1_info[j] && 153 strcmp(com_devs[i].cis1_info[j], 154 card->cis1_info[j]) != 0) 155 break; 156 if (j == 4) 157 return &com_devs[i]; 158 } 159 160 return NULL; 161 } 162 163 164 int 165 com_pcmcia_match(parent, match, aux) 166 struct device *parent; 167 struct cfdata *match; 168 void *aux; 169 { 170 int comportmask; 171 struct pcmcia_attach_args *pa = aux; 172 struct pcmcia_config_entry *cfe; 173 174 /* 1. Does it claim to be a serial device? */ 175 if (pa->pf->function == PCMCIA_FUNCTION_SERIAL) 176 return 1; 177 178 /* 2. Does it have all four 'standard' port ranges? */ 179 comportmask = 0; 180 for (cfe = pa->pf->cfe_head.sqh_first; cfe; 181 cfe = cfe->cfe_list.sqe_next) { 182 switch (cfe->iospace[0].start) { 183 case IO_COM1: 184 comportmask |= 1; 185 break; 186 case IO_COM2: 187 comportmask |= 2; 188 break; 189 case IO_COM3: 190 comportmask |= 4; 191 break; 192 case IO_COM4: 193 comportmask |= 8; 194 break; 195 } 196 } 197 198 if (comportmask == 15) 199 return 1; 200 201 /* 3. Is this a card we know about? */ 202 if (com_dev_match(pa->card) != NULL) 203 return 1; 204 205 return 0; 206 } 207 208 void 209 com_pcmcia_attach(parent, self, aux) 210 struct device *parent, *self; 211 void *aux; 212 { 213 struct com_pcmcia_softc *psc = (void *) self; 214 struct com_softc *sc = &psc->sc_com; 215 struct pcmcia_attach_args *pa = aux; 216 struct pcmcia_config_entry *cfe; 217 int autoalloc = 0; 218 219 psc->sc_pf = pa->pf; 220 221 retry: 222 /* find a cfe we can use */ 223 224 for (cfe = pa->pf->cfe_head.sqh_first; cfe; 225 cfe = cfe->cfe_list.sqe_next) { 226 #if 0 227 /* 228 * Some modem cards (e.g. Xircom CM33) also have 229 * mem space. Don't bother with this check. 230 */ 231 if (cfe->num_memspace != 0) 232 continue; 233 #endif 234 235 if (cfe->num_iospace != 1) 236 continue; 237 238 if (autoalloc == 0) { 239 /* 240 * cfe->iomask == 3 is our test for the "generic" 241 * config table entry, which we want to avoid on the 242 * first pass and use exclusively on the second pass. 243 */ 244 if ((cfe->iomask != 3) && 245 (cfe->iospace[0].start != 0)) { 246 if (!pcmcia_io_alloc(pa->pf, 247 cfe->iospace[0].start, 248 cfe->iospace[0].length, 0, 249 &psc->sc_pcioh)) { 250 goto found; 251 } 252 } 253 } else { 254 if (cfe->iomask == 3) { 255 if (!pcmcia_io_alloc(pa->pf, 0, 256 cfe->iospace[0].length, 257 cfe->iospace[0].length, &psc->sc_pcioh)) { 258 goto found; 259 } 260 } 261 } 262 } 263 if (autoalloc == 0) { 264 autoalloc = 1; 265 goto retry; 266 } else if (!cfe) { 267 printf(": can't allocate i/o space\n"); 268 return; 269 } 270 found: 271 sc->sc_iot = psc->sc_pcioh.iot; 272 sc->sc_ioh = psc->sc_pcioh.ioh; 273 274 /* Enable the card. */ 275 pcmcia_function_init(pa->pf, cfe); 276 if (com_pcmcia_enable1(sc)) 277 printf(": function enable failed\n"); 278 279 sc->enabled = 1; 280 281 /* map in the io space */ 282 283 if (pcmcia_io_map(pa->pf, ((cfe->flags & PCMCIA_CFE_IO16) ? 284 PCMCIA_WIDTH_IO16 : PCMCIA_WIDTH_IO8), 0, psc->sc_pcioh.size, 285 &psc->sc_pcioh, &psc->sc_io_window)) { 286 printf(": can't map i/o space\n"); 287 return; 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)) != 0) 350 return ret; 351 352 if ((psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3C562) || 353 (psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3CXEM556) || 354 (psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3CXEM556INT)) { 355 int reg; 356 357 /* turn off the ethernet-disable bit */ 358 359 reg = pcmcia_ccr_read(pf, PCMCIA_CCR_OPTION); 360 if (reg & 0x08) { 361 reg &= ~0x08; 362 pcmcia_ccr_write(pf, PCMCIA_CCR_OPTION, reg); 363 } 364 } 365 return ret; 366 } 367 368 void 369 com_pcmcia_disable(sc) 370 struct com_softc *sc; 371 { 372 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc; 373 374 com_pcmcia_disable1(sc); 375 pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih); 376 } 377 378 void 379 com_pcmcia_disable1(sc) 380 struct com_softc *sc; 381 { 382 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc; 383 384 pcmcia_function_disable(psc->sc_pf); 385 } 386
Indexes created Sun Sep 28 16:09:52 GMT 2025