| 1 | /* $NetBSD: pcmcia.c,v 1.94 2011/07/26 22:24:36 dyoung Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Copyright (c) 2004 Charles M. Hannum. All rights reserved. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions |
| 8 | * are met: |
| 9 | * 1. Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * 2. Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
| 14 | * 3. All advertising materials mentioning features or use of this software |
| 15 | * must display the following acknowledgement: |
| 16 | * This product includes software developed by Charles M. Hannum. |
| 17 | * 4. The name of the author may not be used to endorse or promote products |
| 18 | * derived from this software without specific prior written permission. |
| 19 | */ |
| 20 | |
| 21 | /* |
| 22 | * Copyright (c) 1997 Marc Horowitz. All rights reserved. |
| 23 | * |
| 24 | * Redistribution and use in source and binary forms, with or without |
| 25 | * modification, are permitted provided that the following conditions |
| 26 | * are met: |
| 27 | * 1. Redistributions of source code must retain the above copyright |
| 28 | * notice, this list of conditions and the following disclaimer. |
| 29 | * 2. Redistributions in binary form must reproduce the above copyright |
| 30 | * notice, this list of conditions and the following disclaimer in the |
| 31 | * documentation and/or other materials provided with the distribution. |
| 32 | * 3. All advertising materials mentioning features or use of this software |
| 33 | * must display the following acknowledgement: |
| 34 | * This product includes software developed by Marc Horowitz. |
| 35 | * 4. The name of the author may not be used to endorse or promote products |
| 36 | * derived from this software without specific prior written permission. |
| 37 | * |
| 38 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 39 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 40 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 41 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 42 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 43 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 44 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 45 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 46 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 47 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 48 | */ |
| 49 | |
| 50 | #include <sys/cdefs.h> |
| 51 | __KERNEL_RCSID(0, "$NetBSD: pcmcia.c,v 1.94 2011/07/26 22:24:36 dyoung Exp $" ); |
| 52 | |
| 53 | #include "opt_pcmciaverbose.h" |
| 54 | |
| 55 | #include <sys/param.h> |
| 56 | #include <sys/systm.h> |
| 57 | #include <sys/device.h> |
| 58 | |
| 59 | #include <net/if.h> |
| 60 | |
| 61 | #include <dev/pcmcia/pcmciareg.h> |
| 62 | #include <dev/pcmcia/pcmciachip.h> |
| 63 | #include <dev/pcmcia/pcmciavar.h> |
| 64 | #ifdef IT8368E_LEGACY_MODE /* XXX -uch */ |
| 65 | #include <arch/hpcmips/dev/it8368var.h> |
| 66 | #endif |
| 67 | |
| 68 | #include "locators.h" |
| 69 | |
| 70 | #ifdef PCMCIADEBUG |
| 71 | int pcmcia_debug = 0; |
| 72 | #define DPRINTF(arg) if (pcmcia_debug) printf arg |
| 73 | #else |
| 74 | #define DPRINTF(arg) |
| 75 | #endif |
| 76 | |
| 77 | #ifdef PCMCIAVERBOSE |
| 78 | int pcmcia_verbose = 1; |
| 79 | #else |
| 80 | int pcmcia_verbose = 0; |
| 81 | #endif |
| 82 | |
| 83 | int pcmcia_match(device_t, cfdata_t, void *); |
| 84 | void pcmcia_attach(device_t, device_t, void *); |
| 85 | int pcmcia_detach(device_t, int); |
| 86 | int pcmcia_rescan(device_t, const char *, const int *); |
| 87 | void pcmcia_childdetached(device_t, device_t); |
| 88 | int pcmcia_print(void *, const char *); |
| 89 | |
| 90 | CFATTACH_DECL3_NEW(pcmcia, sizeof(struct pcmcia_softc), |
| 91 | pcmcia_match, pcmcia_attach, pcmcia_detach, NULL, |
| 92 | pcmcia_rescan, pcmcia_childdetached, DVF_DETACH_SHUTDOWN); |
| 93 | |
| 94 | int |
| 95 | pcmcia_ccr_read(struct pcmcia_function *pf, int ccr) |
| 96 | { |
| 97 | |
| 98 | return (bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh, |
| 99 | pf->pf_ccr_offset + ccr * 2)); |
| 100 | } |
| 101 | |
| 102 | void |
| 103 | pcmcia_ccr_write(struct pcmcia_function *pf, int ccr, int val) |
| 104 | { |
| 105 | |
| 106 | if (pf->ccr_mask & (1 << ccr)) { |
| 107 | bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh, |
| 108 | pf->pf_ccr_offset + ccr * 2, val); |
| 109 | } |
| 110 | } |
| 111 | |
| 112 | int |
| 113 | pcmcia_match(device_t parent, cfdata_t match, void *aux) |
| 114 | { |
| 115 | struct pcmciabus_attach_args *paa = aux; |
| 116 | |
| 117 | if (strcmp(paa->paa_busname, match->cf_name)) { |
| 118 | return 0; |
| 119 | } |
| 120 | /* if the autoconfiguration got this far, there's a socket here */ |
| 121 | return (1); |
| 122 | } |
| 123 | |
| 124 | void |
| 125 | pcmcia_attach(device_t parent, device_t self, void *aux) |
| 126 | { |
| 127 | struct pcmciabus_attach_args *paa = aux; |
| 128 | struct pcmcia_softc *sc = device_private(self); |
| 129 | |
| 130 | aprint_naive("\n" ); |
| 131 | aprint_normal("\n" ); |
| 132 | |
| 133 | sc->dev = self; |
| 134 | sc->pct = paa->pct; |
| 135 | sc->pch = paa->pch; |
| 136 | |
| 137 | sc->ih = NULL; |
| 138 | |
| 139 | if (!pmf_device_register(self, NULL, NULL)) |
| 140 | aprint_error_dev(self, "couldn't establish power handler\n" ); |
| 141 | } |
| 142 | |
| 143 | int |
| 144 | pcmcia_detach(device_t self, int flags) |
| 145 | { |
| 146 | int rc; |
| 147 | |
| 148 | if ((rc = config_detach_children(self, flags)) != 0) |
| 149 | return rc; |
| 150 | |
| 151 | pmf_device_deregister(self); |
| 152 | return 0; |
| 153 | } |
| 154 | |
| 155 | int |
| 156 | pcmcia_card_attach(device_t dev) |
| 157 | { |
| 158 | struct pcmcia_softc *sc = device_private(dev); |
| 159 | struct pcmcia_function *pf; |
| 160 | int error; |
| 161 | static const int wildcard[PCMCIACF_NLOCS] = { |
| 162 | PCMCIACF_FUNCTION_DEFAULT |
| 163 | }; |
| 164 | |
| 165 | /* |
| 166 | * this is here so that when socket_enable calls gettype, trt happens |
| 167 | */ |
| 168 | SIMPLEQ_FIRST(&sc->card.pf_head) = NULL; |
| 169 | |
| 170 | pcmcia_socket_enable(dev); |
| 171 | |
| 172 | pcmcia_read_cis(sc); |
| 173 | pcmcia_check_cis_quirks(sc); |
| 174 | |
| 175 | #if 1 /* XXX remove this, done below ??? */ |
| 176 | /* |
| 177 | * bail now if the card has no functions, or if there was an error in |
| 178 | * the cis. |
| 179 | */ |
| 180 | if (sc->card.error || |
| 181 | SIMPLEQ_EMPTY(&sc->card.pf_head)) { |
| 182 | printf("%s: card appears to have bogus CIS\n" , |
| 183 | device_xname(sc->dev)); |
| 184 | error = EIO; |
| 185 | goto done; |
| 186 | } |
| 187 | #endif |
| 188 | |
| 189 | if (pcmcia_verbose) |
| 190 | pcmcia_print_cis(sc); |
| 191 | |
| 192 | SIMPLEQ_FOREACH(pf, &sc->card.pf_head, pf_list) { |
| 193 | if (SIMPLEQ_EMPTY(&pf->cfe_head)) |
| 194 | continue; |
| 195 | |
| 196 | #ifdef DIAGNOSTIC |
| 197 | if (pf->child != NULL) { |
| 198 | printf("%s: %s still attached to function %d!\n" , |
| 199 | device_xname(sc->dev), device_xname(pf->child), |
| 200 | pf->number); |
| 201 | panic("pcmcia_card_attach" ); |
| 202 | } |
| 203 | #endif |
| 204 | pf->sc = sc; |
| 205 | pf->child = NULL; |
| 206 | pf->cfe = NULL; |
| 207 | pf->pf_ih = NULL; |
| 208 | } |
| 209 | |
| 210 | error = pcmcia_rescan(dev, "pcmcia" , wildcard); |
| 211 | done: |
| 212 | pcmcia_socket_disable(dev); |
| 213 | return (error); |
| 214 | } |
| 215 | |
| 216 | int |
| 217 | pcmcia_rescan(device_t self, const char *ifattr, |
| 218 | const int *locators) |
| 219 | { |
| 220 | struct pcmcia_softc *sc = device_private(self); |
| 221 | struct pcmcia_function *pf; |
| 222 | struct pcmcia_attach_args paa; |
| 223 | int locs[PCMCIACF_NLOCS]; |
| 224 | |
| 225 | if (sc->card.error || |
| 226 | SIMPLEQ_EMPTY(&sc->card.pf_head)) { |
| 227 | /* XXX silently ignore if no card present? */ |
| 228 | return (EIO); |
| 229 | } |
| 230 | |
| 231 | SIMPLEQ_FOREACH(pf, &sc->card.pf_head, pf_list) { |
| 232 | if (SIMPLEQ_EMPTY(&pf->cfe_head)) |
| 233 | continue; |
| 234 | |
| 235 | if ((locators[PCMCIACF_FUNCTION] != PCMCIACF_FUNCTION_DEFAULT) |
| 236 | && (locators[PCMCIACF_FUNCTION] != pf->number)) |
| 237 | continue; |
| 238 | |
| 239 | if (pf->child) |
| 240 | continue; |
| 241 | |
| 242 | locs[PCMCIACF_FUNCTION] = pf->number; |
| 243 | |
| 244 | paa.manufacturer = sc->card.manufacturer; |
| 245 | paa.product = sc->card.product; |
| 246 | paa.card = &sc->card; |
| 247 | paa.pf = pf; |
| 248 | |
| 249 | pf->child = config_found_sm_loc(self, "pcmcia" , locs, &paa, |
| 250 | pcmcia_print, |
| 251 | config_stdsubmatch); |
| 252 | } |
| 253 | |
| 254 | return (0); |
| 255 | } |
| 256 | |
| 257 | void |
| 258 | pcmcia_card_detach(device_t dev, int flags) |
| 259 | /* flags: DETACH_* flags */ |
| 260 | { |
| 261 | struct pcmcia_softc *sc = device_private(dev); |
| 262 | struct pcmcia_function *pf; |
| 263 | int error; |
| 264 | |
| 265 | /* |
| 266 | * We are running on either the PCMCIA socket's event thread |
| 267 | * or in user context detaching a device by user request. |
| 268 | */ |
| 269 | SIMPLEQ_FOREACH(pf, &sc->card.pf_head, pf_list) { |
| 270 | pf->pf_flags |= PFF_DETACHED; |
| 271 | if (SIMPLEQ_EMPTY(&pf->cfe_head)) |
| 272 | continue; |
| 273 | if (pf->child == NULL) |
| 274 | continue; |
| 275 | DPRINTF(("%s: detaching %s (function %d)\n" , |
| 276 | device_xname(sc->dev), device_xname(pf->child), pf->number)); |
| 277 | if ((error = config_detach(pf->child, flags)) != 0) { |
| 278 | printf("%s: error %d detaching %s (function %d)\n" , |
| 279 | device_xname(sc->dev), error, device_xname(pf->child), |
| 280 | pf->number); |
| 281 | } |
| 282 | } |
| 283 | |
| 284 | if (sc->sc_enabled_count != 0) { |
| 285 | #ifdef DIAGNOSTIC |
| 286 | printf("pcmcia_card_detach: enabled_count should be 0 here??\n" ); |
| 287 | #endif |
| 288 | pcmcia_chip_socket_disable(sc->pct, sc->pch); |
| 289 | sc->sc_enabled_count = 0; |
| 290 | } |
| 291 | } |
| 292 | |
| 293 | void |
| 294 | pcmcia_childdetached(device_t self, device_t child) |
| 295 | { |
| 296 | struct pcmcia_softc *sc = device_private(self); |
| 297 | struct pcmcia_function *pf; |
| 298 | |
| 299 | SIMPLEQ_FOREACH(pf, &sc->card.pf_head, pf_list) { |
| 300 | if (SIMPLEQ_EMPTY(&pf->cfe_head)) |
| 301 | continue; |
| 302 | if (pf->child == child) { |
| 303 | KASSERT(device_locator(child, PCMCIACF_FUNCTION) |
| 304 | == pf->number); |
| 305 | pf->child = NULL; |
| 306 | return; |
| 307 | } |
| 308 | } |
| 309 | |
| 310 | aprint_error_dev(self, "pcmcia_childdetached: %s not found\n" , |
| 311 | device_xname(child)); |
| 312 | } |
| 313 | |
| 314 | void |
| 315 | pcmcia_card_deactivate(device_t dev) |
| 316 | { |
| 317 | struct pcmcia_softc *sc = device_private(dev); |
| 318 | struct pcmcia_function *pf; |
| 319 | |
| 320 | /* |
| 321 | * We're in the chip's card removal interrupt handler. |
| 322 | * Deactivate the child driver. The PCMCIA socket's |
| 323 | * event thread will run later to finish the detach. |
| 324 | */ |
| 325 | SIMPLEQ_FOREACH(pf, &sc->card.pf_head, pf_list) { |
| 326 | if (SIMPLEQ_EMPTY(&pf->cfe_head)) |
| 327 | continue; |
| 328 | if (pf->child == NULL) |
| 329 | continue; |
| 330 | DPRINTF(("%s: deactivating %s (function %d)\n" , |
| 331 | device_xname(sc->dev), device_xname(pf->child), pf->number)); |
| 332 | config_deactivate(pf->child); |
| 333 | } |
| 334 | } |
| 335 | |
| 336 | int |
| 337 | pcmcia_print(void *arg, const char *pnp) |
| 338 | { |
| 339 | struct pcmcia_attach_args *pa = arg; |
| 340 | struct pcmcia_softc *sc = pa->pf->sc; |
| 341 | struct pcmcia_card *card = &sc->card; |
| 342 | char devinfo[256]; |
| 343 | |
| 344 | if (pnp) |
| 345 | aprint_normal("%s" , pnp); |
| 346 | |
| 347 | pcmcia_devinfo(card, !!pnp, devinfo, sizeof(devinfo)); |
| 348 | |
| 349 | aprint_normal(" function %d: %s\n" , pa->pf->number, devinfo); |
| 350 | |
| 351 | return (UNCONF); |
| 352 | } |
| 353 | |
| 354 | void |
| 355 | pcmcia_devinfo(struct pcmcia_card *card, int showhex, char *cp, size_t cplen) |
| 356 | { |
| 357 | int i, n; |
| 358 | |
| 359 | if (cplen > 1) { |
| 360 | *cp++ = '<'; |
| 361 | *cp = '\0'; |
| 362 | cplen--; |
| 363 | } |
| 364 | |
| 365 | for (i = 0; i < 4 && card->cis1_info[i] != NULL && cplen > 1; i++) { |
| 366 | n = snprintf(cp, cplen, "%s%s" , i ? ", " : "" , |
| 367 | card->cis1_info[i]); |
| 368 | cp += n; |
| 369 | if (cplen < n) |
| 370 | return; |
| 371 | cplen -= n; |
| 372 | } |
| 373 | |
| 374 | if (cplen > 1) { |
| 375 | *cp++ = '>'; |
| 376 | *cp = '\0'; |
| 377 | cplen--; |
| 378 | } |
| 379 | |
| 380 | if (showhex && cplen > 1) |
| 381 | snprintf(cp, cplen, " (manufacturer 0x%04x, product 0x%04x)" , |
| 382 | card->manufacturer, card->product); |
| 383 | } |
| 384 | |
| 385 | const void * |
| 386 | pcmcia_product_lookup(struct pcmcia_attach_args *pa, const void *tab, size_t nent, size_t ent_size, pcmcia_product_match_fn matchfn) |
| 387 | { |
| 388 | const struct pcmcia_product *pp; |
| 389 | int n; |
| 390 | int matches; |
| 391 | |
| 392 | #ifdef DIAGNOSTIC |
| 393 | if (sizeof *pp > ent_size) |
| 394 | panic("pcmcia_product_lookup: bogus ent_size %ld" , |
| 395 | (long) ent_size); |
| 396 | #endif |
| 397 | |
| 398 | for (pp = tab, n = nent; n; pp = (const struct pcmcia_product *) |
| 399 | ((const char *)pp + ent_size), n--) { |
| 400 | /* see if it matches vendor/product */ |
| 401 | matches = 0; |
| 402 | if ((pp->pp_vendor != PCMCIA_VENDOR_INVALID && |
| 403 | pp->pp_vendor == pa->manufacturer) && |
| 404 | (pp->pp_product != PCMCIA_PRODUCT_INVALID && |
| 405 | pp->pp_product == pa->product)) |
| 406 | matches = 1; |
| 407 | if ((pp->pp_cisinfo[0] && pa->card->cis1_info[0] && |
| 408 | !strcmp(pp->pp_cisinfo[0], pa->card->cis1_info[0])) && |
| 409 | (pp->pp_cisinfo[1] && pa->card->cis1_info[1] && |
| 410 | !strcmp(pp->pp_cisinfo[1], pa->card->cis1_info[1])) && |
| 411 | (!pp->pp_cisinfo[2] || (pa->card->cis1_info[2] && |
| 412 | !strcmp(pp->pp_cisinfo[2], pa->card->cis1_info[2]))) && |
| 413 | (!pp->pp_cisinfo[3] || (pa->card->cis1_info[3] && |
| 414 | !strcmp(pp->pp_cisinfo[3], pa->card->cis1_info[3])))) |
| 415 | matches = 1; |
| 416 | |
| 417 | /* if a separate match function is given, let it override */ |
| 418 | if (matchfn) |
| 419 | matches = (*matchfn)(pa, pp, matches); |
| 420 | |
| 421 | if (matches) |
| 422 | return (pp); |
| 423 | } |
| 424 | return (0); |
| 425 | } |
| 426 | |
| 427 | void |
| 428 | pcmcia_socket_settype(device_t dev, int type) |
| 429 | { |
| 430 | struct pcmcia_softc *sc = device_private(dev); |
| 431 | |
| 432 | pcmcia_chip_socket_settype(sc->pct, sc->pch, type); |
| 433 | } |
| 434 | |
| 435 | /* |
| 436 | * Initialize a PCMCIA function. May be called as long as the function is |
| 437 | * disabled. |
| 438 | */ |
| 439 | void |
| 440 | pcmcia_function_init(struct pcmcia_function *pf, struct pcmcia_config_entry *cfe) |
| 441 | { |
| 442 | if (pf->pf_flags & PFF_ENABLED) |
| 443 | panic("pcmcia_function_init: function is enabled" ); |
| 444 | |
| 445 | /* Remember which configuration entry we are using. */ |
| 446 | pf->cfe = cfe; |
| 447 | } |
| 448 | |
| 449 | void |
| 450 | pcmcia_socket_enable(device_t dev) |
| 451 | { |
| 452 | struct pcmcia_softc *sc = device_private(dev); |
| 453 | |
| 454 | if (sc->sc_enabled_count++ == 0) |
| 455 | pcmcia_chip_socket_enable(sc->pct, sc->pch); |
| 456 | DPRINTF(("%s: ++enabled_count = %d\n" , device_xname(sc->dev), |
| 457 | sc->sc_enabled_count)); |
| 458 | } |
| 459 | |
| 460 | void |
| 461 | pcmcia_socket_disable(device_t dev) |
| 462 | { |
| 463 | struct pcmcia_softc *sc = device_private(dev); |
| 464 | |
| 465 | if (--sc->sc_enabled_count == 0) |
| 466 | pcmcia_chip_socket_disable(sc->pct, sc->pch); |
| 467 | DPRINTF(("%s: --enabled_count = %d\n" , device_xname(sc->dev), |
| 468 | sc->sc_enabled_count)); |
| 469 | } |
| 470 | |
| 471 | /* Enable a PCMCIA function */ |
| 472 | int |
| 473 | pcmcia_function_enable(struct pcmcia_function *pf) |
| 474 | { |
| 475 | struct pcmcia_softc *sc = pf->sc; |
| 476 | struct pcmcia_function *tmp; |
| 477 | int reg; |
| 478 | int error; |
| 479 | |
| 480 | if (pf->cfe == NULL) |
| 481 | panic("pcmcia_function_enable: function not initialized" ); |
| 482 | |
| 483 | /* |
| 484 | * Increase the reference count on the socket, enabling power, if |
| 485 | * necessary. |
| 486 | */ |
| 487 | pcmcia_socket_enable(sc->dev); |
| 488 | pcmcia_socket_settype(sc->dev, pf->cfe->iftype); |
| 489 | |
| 490 | if (pf->pf_flags & PFF_ENABLED) { |
| 491 | /* |
| 492 | * Don't do anything if we're already enabled. |
| 493 | */ |
| 494 | return (0); |
| 495 | } |
| 496 | |
| 497 | /* |
| 498 | * it's possible for different functions' CCRs to be in the same |
| 499 | * underlying page. Check for that. |
| 500 | */ |
| 501 | |
| 502 | SIMPLEQ_FOREACH(tmp, &sc->card.pf_head, pf_list) { |
| 503 | if ((tmp->pf_flags & PFF_ENABLED) && |
| 504 | (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) && |
| 505 | ((pf->ccr_base + PCMCIA_CCR_SIZE) <= |
| 506 | (tmp->ccr_base - tmp->pf_ccr_offset + |
| 507 | tmp->pf_ccr_realsize))) { |
| 508 | pf->pf_ccrt = tmp->pf_ccrt; |
| 509 | pf->pf_ccrh = tmp->pf_ccrh; |
| 510 | pf->pf_ccr_realsize = tmp->pf_ccr_realsize; |
| 511 | |
| 512 | /* |
| 513 | * pf->pf_ccr_offset = (tmp->pf_ccr_offset - |
| 514 | * tmp->ccr_base) + pf->ccr_base; |
| 515 | */ |
| 516 | pf->pf_ccr_offset = |
| 517 | (tmp->pf_ccr_offset + pf->ccr_base) - |
| 518 | tmp->ccr_base; |
| 519 | pf->pf_ccr_window = tmp->pf_ccr_window; |
| 520 | break; |
| 521 | } |
| 522 | } |
| 523 | |
| 524 | if (tmp == NULL) { |
| 525 | error = pcmcia_mem_alloc(pf, PCMCIA_CCR_SIZE, &pf->pf_pcmh); |
| 526 | if (error) |
| 527 | goto bad; |
| 528 | |
| 529 | error = pcmcia_mem_map(pf, PCMCIA_MEM_ATTR, pf->ccr_base, |
| 530 | PCMCIA_CCR_SIZE, &pf->pf_pcmh, &pf->pf_ccr_offset, |
| 531 | &pf->pf_ccr_window); |
| 532 | if (error) { |
| 533 | pcmcia_mem_free(pf, &pf->pf_pcmh); |
| 534 | goto bad; |
| 535 | } |
| 536 | } |
| 537 | |
| 538 | if (pcmcia_mfc(sc) || 1) { |
| 539 | pcmcia_ccr_write(pf, PCMCIA_CCR_IOBASE0, |
| 540 | (pf->pf_mfc_iobase >> 0) & 0xff); |
| 541 | pcmcia_ccr_write(pf, PCMCIA_CCR_IOBASE1, |
| 542 | (pf->pf_mfc_iobase >> 8) & 0xff); |
| 543 | pcmcia_ccr_write(pf, PCMCIA_CCR_IOBASE2, |
| 544 | (pf->pf_mfc_iobase >> 16) & 0xff); |
| 545 | pcmcia_ccr_write(pf, PCMCIA_CCR_IOBASE3, |
| 546 | (pf->pf_mfc_iobase >> 24) & 0xff); |
| 547 | pcmcia_ccr_write(pf, PCMCIA_CCR_IOLIMIT, |
| 548 | pf->pf_mfc_iomax - pf->pf_mfc_iobase); |
| 549 | } |
| 550 | |
| 551 | reg = 0; |
| 552 | if (pf->cfe->flags & PCMCIA_CFE_AUDIO) |
| 553 | reg |= PCMCIA_CCR_STATUS_AUDIO; |
| 554 | pcmcia_ccr_write(pf, PCMCIA_CCR_STATUS, reg); |
| 555 | |
| 556 | pcmcia_ccr_write(pf, PCMCIA_CCR_SOCKETCOPY, 0); |
| 557 | |
| 558 | reg = (pf->cfe->number & PCMCIA_CCR_OPTION_CFINDEX); |
| 559 | reg |= PCMCIA_CCR_OPTION_LEVIREQ; |
| 560 | if (pcmcia_mfc(sc)) { |
| 561 | reg |= (PCMCIA_CCR_OPTION_FUNC_ENABLE | |
| 562 | PCMCIA_CCR_OPTION_ADDR_DECODE); |
| 563 | if (pf->pf_ih) |
| 564 | reg |= PCMCIA_CCR_OPTION_IREQ_ENABLE; |
| 565 | |
| 566 | } |
| 567 | pcmcia_ccr_write(pf, PCMCIA_CCR_OPTION, reg); |
| 568 | |
| 569 | #ifdef PCMCIADEBUG |
| 570 | if (pcmcia_debug) { |
| 571 | SIMPLEQ_FOREACH(tmp, &sc->card.pf_head, pf_list) { |
| 572 | printf("%s: function %d CCR at %d offset %lx: " |
| 573 | "%x %x %x %x, %x %x %x %x, %x\n" , |
| 574 | device_xname(tmp->sc->dev), tmp->number, |
| 575 | tmp->pf_ccr_window, |
| 576 | (unsigned long) tmp->pf_ccr_offset, |
| 577 | pcmcia_ccr_read(tmp, 0), |
| 578 | pcmcia_ccr_read(tmp, 1), |
| 579 | pcmcia_ccr_read(tmp, 2), |
| 580 | pcmcia_ccr_read(tmp, 3), |
| 581 | |
| 582 | pcmcia_ccr_read(tmp, 5), |
| 583 | pcmcia_ccr_read(tmp, 6), |
| 584 | pcmcia_ccr_read(tmp, 7), |
| 585 | pcmcia_ccr_read(tmp, 8), |
| 586 | |
| 587 | pcmcia_ccr_read(tmp, 9)); |
| 588 | } |
| 589 | } |
| 590 | #endif |
| 591 | |
| 592 | #ifdef IT8368E_LEGACY_MODE |
| 593 | /* return to I/O mode */ |
| 594 | it8368_mode(pf, IT8368_IO_MODE, IT8368_WIDTH_16); |
| 595 | #endif |
| 596 | |
| 597 | pf->pf_flags |= PFF_ENABLED; |
| 598 | return (0); |
| 599 | |
| 600 | bad: |
| 601 | /* |
| 602 | * Decrement the reference count, and power down the socket, if |
| 603 | * necessary. |
| 604 | */ |
| 605 | printf("%s: couldn't map the CCR\n" , device_xname(pf->child)); |
| 606 | pcmcia_socket_disable(sc->dev); |
| 607 | |
| 608 | return (error); |
| 609 | } |
| 610 | |
| 611 | /* Disable PCMCIA function. */ |
| 612 | void |
| 613 | pcmcia_function_disable(struct pcmcia_function *pf) |
| 614 | { |
| 615 | struct pcmcia_softc *sc = pf->sc; |
| 616 | struct pcmcia_function *tmp; |
| 617 | int reg; |
| 618 | |
| 619 | if (pf->cfe == NULL) |
| 620 | panic("pcmcia_function_enable: function not initialized" ); |
| 621 | |
| 622 | if ((pf->pf_flags & PFF_ENABLED) == 0) { |
| 623 | /* |
| 624 | * Don't do anything but decrement if we're already disabled. |
| 625 | */ |
| 626 | goto out; |
| 627 | } |
| 628 | |
| 629 | if (pcmcia_mfc(sc) && |
| 630 | (pf->pf_flags & PFF_DETACHED) == 0) { |
| 631 | reg = pcmcia_ccr_read(pf, PCMCIA_CCR_OPTION); |
| 632 | reg &= ~(PCMCIA_CCR_OPTION_FUNC_ENABLE| |
| 633 | PCMCIA_CCR_OPTION_ADDR_DECODE| |
| 634 | PCMCIA_CCR_OPTION_IREQ_ENABLE); |
| 635 | pcmcia_ccr_write(pf, PCMCIA_CCR_OPTION, reg); |
| 636 | } |
| 637 | |
| 638 | /* |
| 639 | * it's possible for different functions' CCRs to be in the same |
| 640 | * underlying page. Check for that. Note we mark us as disabled |
| 641 | * first to avoid matching ourself. |
| 642 | */ |
| 643 | |
| 644 | pf->pf_flags &= ~PFF_ENABLED; |
| 645 | SIMPLEQ_FOREACH(tmp, &sc->card.pf_head, pf_list) { |
| 646 | if ((tmp->pf_flags & PFF_ENABLED) && |
| 647 | (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) && |
| 648 | ((pf->ccr_base + PCMCIA_CCR_SIZE) <= |
| 649 | (tmp->ccr_base - tmp->pf_ccr_offset + tmp->pf_ccr_realsize))) |
| 650 | break; |
| 651 | } |
| 652 | |
| 653 | /* Not used by anyone else; unmap the CCR. */ |
| 654 | if (tmp == NULL) { |
| 655 | pcmcia_mem_unmap(pf, pf->pf_ccr_window); |
| 656 | pcmcia_mem_free(pf, &pf->pf_pcmh); |
| 657 | } |
| 658 | |
| 659 | out: |
| 660 | /* |
| 661 | * Decrement the reference count, and power down the socket, if |
| 662 | * necessary. |
| 663 | */ |
| 664 | pcmcia_socket_disable(sc->dev); |
| 665 | } |
| 666 | |
| 667 | int |
| 668 | pcmcia_io_map(struct pcmcia_function *pf, int width, struct pcmcia_io_handle *pcihp, int *windowp) |
| 669 | { |
| 670 | struct pcmcia_softc *sc = pf->sc; |
| 671 | int error; |
| 672 | |
| 673 | if (pf->pf_flags & PFF_ENABLED) |
| 674 | printf("pcmcia_io_map: function is enabled!\n" ); |
| 675 | |
| 676 | error = pcmcia_chip_io_map(sc->pct, sc->pch, |
| 677 | width, 0, pcihp->size, pcihp, windowp); |
| 678 | if (error) |
| 679 | return (error); |
| 680 | |
| 681 | /* |
| 682 | * XXX in the multifunction multi-iospace-per-function case, this |
| 683 | * needs to cooperate with io_alloc to make sure that the spaces |
| 684 | * don't overlap, and that the ccr's are set correctly |
| 685 | */ |
| 686 | |
| 687 | if (pcmcia_mfc(sc) || 1) { |
| 688 | bus_addr_t iobase = pcihp->addr; |
| 689 | bus_addr_t iomax = pcihp->addr + pcihp->size - 1; |
| 690 | |
| 691 | DPRINTF(("window iobase %lx iomax %lx\n" , (long)iobase, |
| 692 | (long)iomax)); |
| 693 | if (pf->pf_mfc_iobase == 0) { |
| 694 | pf->pf_mfc_iobase = iobase; |
| 695 | pf->pf_mfc_iomax = iomax; |
| 696 | } else { |
| 697 | if (iobase < pf->pf_mfc_iobase) |
| 698 | pf->pf_mfc_iobase = iobase; |
| 699 | if (iomax > pf->pf_mfc_iomax) |
| 700 | pf->pf_mfc_iomax = iomax; |
| 701 | } |
| 702 | DPRINTF(("function iobase %lx iomax %lx\n" , |
| 703 | (long)pf->pf_mfc_iobase, (long)pf->pf_mfc_iomax)); |
| 704 | } |
| 705 | |
| 706 | return (0); |
| 707 | } |
| 708 | |
| 709 | void |
| 710 | pcmcia_io_unmap(struct pcmcia_function *pf, int window) |
| 711 | { |
| 712 | struct pcmcia_softc *sc = pf->sc; |
| 713 | |
| 714 | if (pf->pf_flags & PFF_ENABLED) |
| 715 | printf("pcmcia_io_unmap: function is enabled!\n" ); |
| 716 | |
| 717 | pcmcia_chip_io_unmap(sc->pct, sc->pch, window); |
| 718 | } |
| 719 | |
| 720 | void * |
| 721 | pcmcia_intr_establish(struct pcmcia_function *pf, int ipl, |
| 722 | int (*ih_fct)(void *), void *ih_arg) |
| 723 | { |
| 724 | |
| 725 | if (pf->pf_flags & PFF_ENABLED) |
| 726 | printf("pcmcia_intr_establish: function is enabled!\n" ); |
| 727 | if (pf->pf_ih) |
| 728 | panic("pcmcia_intr_establish: already done\n" ); |
| 729 | |
| 730 | pf->pf_ih = pcmcia_chip_intr_establish(pf->sc->pct, pf->sc->pch, |
| 731 | pf, ipl, ih_fct, ih_arg); |
| 732 | if (!pf->pf_ih) |
| 733 | aprint_error_dev(pf->child, "interrupt establish failed\n" ); |
| 734 | return (pf->pf_ih); |
| 735 | } |
| 736 | |
| 737 | void |
| 738 | pcmcia_intr_disestablish(struct pcmcia_function *pf, void *ih) |
| 739 | { |
| 740 | |
| 741 | if (pf->pf_flags & PFF_ENABLED) |
| 742 | printf("pcmcia_intr_disestablish: function is enabled!\n" ); |
| 743 | if (!pf->pf_ih) |
| 744 | panic("pcmcia_intr_distestablish: already done\n" ); |
| 745 | |
| 746 | pcmcia_chip_intr_disestablish(pf->sc->pct, pf->sc->pch, ih); |
| 747 | pf->pf_ih = 0; |
| 748 | } |
| 749 | |
| 750 | int |
| 751 | pcmcia_config_alloc(struct pcmcia_function *pf, struct pcmcia_config_entry *cfe) |
| 752 | { |
| 753 | int error = 0; |
| 754 | int n, m; |
| 755 | |
| 756 | for (n = 0; n < cfe->num_iospace; n++) { |
| 757 | bus_addr_t start = cfe->iospace[n].start; |
| 758 | bus_size_t length = cfe->iospace[n].length; |
| 759 | bus_size_t align = cfe->iomask ? (1 << cfe->iomask) : |
| 760 | length; |
| 761 | bus_size_t skew = start & (align - 1); |
| 762 | |
| 763 | if ((start - skew) == 0 && align < 0x400) { |
| 764 | if (skew) |
| 765 | printf("Drats! I need a skew!\n" ); |
| 766 | start = 0; |
| 767 | } |
| 768 | |
| 769 | DPRINTF(("pcmcia_config_alloc: io %d start=%lx length=%lx align=%lx skew=%lx\n" , |
| 770 | n, (long)start, (long)length, (long)align, (long)skew)); |
| 771 | |
| 772 | error = pcmcia_io_alloc(pf, start, length, align, |
| 773 | &cfe->iospace[n].handle); |
| 774 | if (error) |
| 775 | break; |
| 776 | } |
| 777 | if (n < cfe->num_iospace) { |
| 778 | for (m = 0; m < n; m++) |
| 779 | pcmcia_io_free(pf, &cfe->iospace[m].handle); |
| 780 | return (error); |
| 781 | } |
| 782 | |
| 783 | for (n = 0; n < cfe->num_memspace; n++) { |
| 784 | bus_size_t length = cfe->memspace[n].length; |
| 785 | |
| 786 | DPRINTF(("pcmcia_config_alloc: mem %d length %lx\n" , n, |
| 787 | (long)length)); |
| 788 | |
| 789 | error = pcmcia_mem_alloc(pf, length, &cfe->memspace[n].handle); |
| 790 | if (error) |
| 791 | break; |
| 792 | } |
| 793 | if (n < cfe->num_memspace) { |
| 794 | for (m = 0; m < cfe->num_iospace; m++) |
| 795 | pcmcia_io_free(pf, &cfe->iospace[m].handle); |
| 796 | for (m = 0; m < n; m++) |
| 797 | pcmcia_mem_free(pf, &cfe->memspace[m].handle); |
| 798 | return (error); |
| 799 | } |
| 800 | |
| 801 | /* This one's good! */ |
| 802 | return (error); |
| 803 | } |
| 804 | |
| 805 | void |
| 806 | pcmcia_config_free(struct pcmcia_function *pf) |
| 807 | { |
| 808 | struct pcmcia_config_entry *cfe = pf->cfe; |
| 809 | int m; |
| 810 | |
| 811 | for (m = 0; m < cfe->num_iospace; m++) |
| 812 | pcmcia_io_free(pf, &cfe->iospace[m].handle); |
| 813 | for (m = 0; m < cfe->num_memspace; m++) |
| 814 | pcmcia_mem_free(pf, &cfe->memspace[m].handle); |
| 815 | } |
| 816 | |
| 817 | int |
| 818 | pcmcia_config_map(struct pcmcia_function *pf) |
| 819 | { |
| 820 | struct pcmcia_config_entry *cfe = pf->cfe; |
| 821 | int error = 0; |
| 822 | int n, m; |
| 823 | |
| 824 | for (n = 0; n < cfe->num_iospace; n++) { |
| 825 | int width; |
| 826 | |
| 827 | if (cfe->flags & PCMCIA_CFE_IO16) |
| 828 | width = PCMCIA_WIDTH_AUTO; |
| 829 | else |
| 830 | width = PCMCIA_WIDTH_IO8; |
| 831 | error = pcmcia_io_map(pf, width, &cfe->iospace[n].handle, |
| 832 | &cfe->iospace[n].window); |
| 833 | if (error) |
| 834 | break; |
| 835 | } |
| 836 | if (n < cfe->num_iospace) { |
| 837 | for (m = 0; m < n; m++) |
| 838 | pcmcia_io_unmap(pf, cfe->iospace[m].window); |
| 839 | return (error); |
| 840 | } |
| 841 | |
| 842 | for (n = 0; n < cfe->num_memspace; n++) { |
| 843 | bus_size_t length = cfe->memspace[n].length; |
| 844 | int width; |
| 845 | |
| 846 | DPRINTF(("pcmcia_config_alloc: mem %d length %lx\n" , n, |
| 847 | (long)length)); |
| 848 | |
| 849 | /*XXX*/ |
| 850 | width = PCMCIA_WIDTH_MEM8|PCMCIA_MEM_COMMON; |
| 851 | error = pcmcia_mem_map(pf, width, 0, length, |
| 852 | &cfe->memspace[n].handle, &cfe->memspace[n].offset, |
| 853 | &cfe->memspace[n].window); |
| 854 | if (error) |
| 855 | break; |
| 856 | } |
| 857 | if (n < cfe->num_memspace) { |
| 858 | for (m = 0; m < cfe->num_iospace; m++) |
| 859 | pcmcia_io_unmap(pf, cfe->iospace[m].window); |
| 860 | for (m = 0; m < n; m++) |
| 861 | pcmcia_mem_unmap(pf, cfe->memspace[m].window); |
| 862 | return (error); |
| 863 | } |
| 864 | |
| 865 | /* This one's good! */ |
| 866 | return (error); |
| 867 | } |
| 868 | |
| 869 | void |
| 870 | pcmcia_config_unmap(struct pcmcia_function *pf) |
| 871 | { |
| 872 | struct pcmcia_config_entry *cfe = pf->cfe; |
| 873 | int m; |
| 874 | |
| 875 | for (m = 0; m < cfe->num_iospace; m++) |
| 876 | pcmcia_io_unmap(pf, cfe->iospace[m].window); |
| 877 | for (m = 0; m < cfe->num_memspace; m++) |
| 878 | pcmcia_mem_unmap(pf, cfe->memspace[m].window); |
| 879 | } |
| 880 | |
| 881 | int |
| 882 | pcmcia_function_configure(struct pcmcia_function *pf, |
| 883 | int (*validator)(struct pcmcia_config_entry *)) |
| 884 | { |
| 885 | struct pcmcia_config_entry *cfe; |
| 886 | int error = ENOENT; |
| 887 | |
| 888 | SIMPLEQ_FOREACH(cfe, &pf->cfe_head, cfe_list) { |
| 889 | error = validator(cfe); |
| 890 | if (error) |
| 891 | continue; |
| 892 | error = pcmcia_config_alloc(pf, cfe); |
| 893 | if (!error) |
| 894 | break; |
| 895 | } |
| 896 | if (!cfe) { |
| 897 | DPRINTF(("pcmcia_function_configure: no config entry found, error=%d\n" , |
| 898 | error)); |
| 899 | return (error); |
| 900 | } |
| 901 | |
| 902 | /* Remember which configuration entry we are using. */ |
| 903 | pf->cfe = cfe; |
| 904 | |
| 905 | error = pcmcia_config_map(pf); |
| 906 | if (error) { |
| 907 | DPRINTF(("pcmcia_function_configure: map failed, error=%d\n" , |
| 908 | error)); |
| 909 | return (error); |
| 910 | } |
| 911 | |
| 912 | return (0); |
| 913 | } |
| 914 | |
| 915 | void |
| 916 | pcmcia_function_unconfigure(struct pcmcia_function *pf) |
| 917 | { |
| 918 | |
| 919 | pcmcia_config_unmap(pf); |
| 920 | pcmcia_config_free(pf); |
| 921 | } |
| 922 | |