1 /*- 2 * Copyright (c) 2002-2004 M. Warner Losh. 3 * Copyright (c) 2000-2001 Jonathan Chen. 4 * 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 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD: src/sys/dev/pccbb/pccbb_pci.c,v 1.15 2005/10/08 06:58:51 imp Exp $ 28 * $DragonFly: src/sys/dev/pccard/pccbb/pccbb_pci.c,v 1.2 2007/08/14 14:58:44 sephe Exp $ 29 */ 30 31 /*- 32 * Copyright (c) 1998, 1999 and 2000 33 * HAYAKAWA Koichi. All rights reserved. 34 * 35 * Redistribution and use in source and binary forms, with or without 36 * modification, are permitted provided that the following conditions 37 * are met: 38 * 1. Redistributions of source code must retain the above copyright 39 * notice, this list of conditions and the following disclaimer. 40 * 2. Redistributions in binary form must reproduce the above copyright 41 * notice, this list of conditions and the following disclaimer in the 42 * documentation and/or other materials provided with the distribution. 43 * 3. All advertising materials mentioning features or use of this software 44 * must display the following acknowledgement: 45 * This product includes software developed by HAYAKAWA Koichi. 46 * 4. The name of the author may not be used to endorse or promote products 47 * derived from this software without specific prior written permission. 48 * 49 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 50 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 51 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 52 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 53 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 54 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 55 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 56 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 57 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 58 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 59 */ 60 61 /* 62 * Driver for PCI to CardBus Bridge chips 63 * 64 * References: 65 * TI Datasheets: 66 * http://www-s.ti.com/cgi-bin/sc/generic2.cgi?family=PCI+CARDBUS+CONTROLLERS 67 * 68 * Written by Jonathan Chen <jon@freebsd.org> 69 * The author would like to acknowledge: 70 * * HAYAKAWA Koichi: Author of the NetBSD code for the same thing 71 * * Warner Losh: Newbus/newcard guru and author of the pccard side of things 72 * * YAMAMOTO Shigeru: Author of another FreeBSD cardbus driver 73 * * David Cross: Author of the initial ugly hack for a specific cardbus card 74 */ 75 76 #include <sys/param.h> 77 #include <sys/systm.h> 78 #include <sys/proc.h> 79 #include <sys/errno.h> 80 #include <sys/kernel.h> 81 #include <sys/lock.h> 82 #include <sys/malloc.h> 83 #include <sys/sysctl.h> 84 #include <sys/kthread.h> 85 #include <sys/bus.h> 86 #include <sys/rman.h> 87 #include <sys/module.h> 88 89 #include <bus/pci/pcireg.h> 90 #include <bus/pci/pcivar.h> 91 #include <machine/clock.h> 92 93 #include <bus/pccard/pccardreg.h> 94 #include <bus/pccard/pccardvar.h> 95 96 #include <dev/pccard/exca/excareg.h> 97 #include <dev/pccard/exca/excavar.h> 98 99 #include <dev/pccard/pccbb/pccbbreg.h> 100 #include <dev/pccard/pccbb/pccbbvar.h> 101 102 #include "power_if.h" 103 #include "card_if.h" 104 #include "pcib_if.h" 105 106 #define DPRINTF(x) do { if (cbb_debug) kprintf x; } while (0) 107 #define DEVPRINTF(x) do { if (cbb_debug) device_printf x; } while (0) 108 109 #define PCI_MASK_CONFIG(DEV,REG,MASK,SIZE) \ 110 pci_write_config(DEV, REG, pci_read_config(DEV, REG, SIZE) MASK, SIZE) 111 #define PCI_MASK2_CONFIG(DEV,REG,MASK1,MASK2,SIZE) \ 112 pci_write_config(DEV, REG, ( \ 113 pci_read_config(DEV, REG, SIZE) MASK1) MASK2, SIZE) 114 115 static void cbb_chipinit(struct cbb_softc *sc); 116 117 static struct yenta_chipinfo { 118 uint32_t yc_id; 119 const char *yc_name; 120 int yc_chiptype; 121 } yc_chipsets[] = { 122 /* Texas Instruments chips */ 123 {PCIC_ID_TI1031, "TI1031 PCI-PC Card Bridge", CB_TI113X}, 124 {PCIC_ID_TI1130, "TI1130 PCI-CardBus Bridge", CB_TI113X}, 125 {PCIC_ID_TI1131, "TI1131 PCI-CardBus Bridge", CB_TI113X}, 126 127 {PCIC_ID_TI1210, "TI1210 PCI-CardBus Bridge", CB_TI12XX}, 128 {PCIC_ID_TI1211, "TI1211 PCI-CardBus Bridge", CB_TI12XX}, 129 {PCIC_ID_TI1220, "TI1220 PCI-CardBus Bridge", CB_TI12XX}, 130 {PCIC_ID_TI1221, "TI1221 PCI-CardBus Bridge", CB_TI12XX}, 131 {PCIC_ID_TI1225, "TI1225 PCI-CardBus Bridge", CB_TI12XX}, 132 {PCIC_ID_TI1250, "TI1250 PCI-CardBus Bridge", CB_TI125X}, 133 {PCIC_ID_TI1251, "TI1251 PCI-CardBus Bridge", CB_TI125X}, 134 {PCIC_ID_TI1251B,"TI1251B PCI-CardBus Bridge",CB_TI125X}, 135 {PCIC_ID_TI1260, "TI1260 PCI-CardBus Bridge", CB_TI12XX}, 136 {PCIC_ID_TI1260B,"TI1260B PCI-CardBus Bridge",CB_TI12XX}, 137 {PCIC_ID_TI1410, "TI1410 PCI-CardBus Bridge", CB_TI12XX}, 138 {PCIC_ID_TI1420, "TI1420 PCI-CardBus Bridge", CB_TI12XX}, 139 {PCIC_ID_TI1421, "TI1421 PCI-CardBus Bridge", CB_TI12XX}, 140 {PCIC_ID_TI1450, "TI1450 PCI-CardBus Bridge", CB_TI125X}, /*SIC!*/ 141 {PCIC_ID_TI1451, "TI1451 PCI-CardBus Bridge", CB_TI12XX}, 142 {PCIC_ID_TI1510, "TI1510 PCI-CardBus Bridge", CB_TI12XX}, 143 {PCIC_ID_TI1520, "TI1520 PCI-CardBus Bridge", CB_TI12XX}, 144 {PCIC_ID_TI4410, "TI4410 PCI-CardBus Bridge", CB_TI12XX}, 145 {PCIC_ID_TI4450, "TI4450 PCI-CardBus Bridge", CB_TI12XX}, 146 {PCIC_ID_TI4451, "TI4451 PCI-CardBus Bridge", CB_TI12XX}, 147 {PCIC_ID_TI4510, "TI4510 PCI-CardBus Bridge", CB_TI12XX}, 148 {PCIC_ID_TI6411, "TI6411 PCI-CardBus Bridge", CB_TI12XX}, 149 {PCIC_ID_TI6420, "TI6420 PCI-CardBus Bridge", CB_TI12XX}, 150 {PCIC_ID_TI6420SC, "TI6420 PCI-CardBus Bridge", CB_TI12XX}, 151 {PCIC_ID_TI7410, "TI7410 PCI-CardBus Bridge", CB_TI12XX}, 152 {PCIC_ID_TI7510, "TI7510 PCI-CardBus Bridge", CB_TI12XX}, 153 {PCIC_ID_TI7610, "TI7610 PCI-CardBus Bridge", CB_TI12XX}, 154 {PCIC_ID_TI7610M, "TI7610 PCI-CardBus Bridge", CB_TI12XX}, 155 {PCIC_ID_TI7610SD, "TI7610 PCI-CardBus Bridge", CB_TI12XX}, 156 {PCIC_ID_TI7610MS, "TI7610 PCI-CardBus Bridge", CB_TI12XX}, 157 158 /* ENE */ 159 {PCIC_ID_ENE_CB710, "ENE CB710 PCI-CardBus Bridge", CB_TI12XX}, 160 {PCIC_ID_ENE_CB720, "ENE CB720 PCI-CardBus Bridge", CB_TI12XX}, 161 {PCIC_ID_ENE_CB1211, "ENE CB1211 PCI-CardBus Bridge", CB_TI12XX}, 162 {PCIC_ID_ENE_CB1225, "ENE CB1225 PCI-CardBus Bridge", CB_TI12XX}, 163 {PCIC_ID_ENE_CB1410, "ENE CB1410 PCI-CardBus Bridge", CB_TI12XX}, 164 {PCIC_ID_ENE_CB1420, "ENE CB1420 PCI-CardBus Bridge", CB_TI12XX}, 165 166 /* Ricoh chips */ 167 {PCIC_ID_RICOH_RL5C465, "RF5C465 PCI-CardBus Bridge", CB_RF5C46X}, 168 {PCIC_ID_RICOH_RL5C466, "RF5C466 PCI-CardBus Bridge", CB_RF5C46X}, 169 {PCIC_ID_RICOH_RL5C475, "RF5C475 PCI-CardBus Bridge", CB_RF5C47X}, 170 {PCIC_ID_RICOH_RL5C476, "RF5C476 PCI-CardBus Bridge", CB_RF5C47X}, 171 {PCIC_ID_RICOH_RL5C477, "RF5C477 PCI-CardBus Bridge", CB_RF5C47X}, 172 {PCIC_ID_RICOH_RL5C478, "RF5C478 PCI-CardBus Bridge", CB_RF5C47X}, 173 174 /* Toshiba products */ 175 {PCIC_ID_TOPIC95, "ToPIC95 PCI-CardBus Bridge", CB_TOPIC95}, 176 {PCIC_ID_TOPIC95B, "ToPIC95B PCI-CardBus Bridge", CB_TOPIC95}, 177 {PCIC_ID_TOPIC97, "ToPIC97 PCI-CardBus Bridge", CB_TOPIC97}, 178 {PCIC_ID_TOPIC100, "ToPIC100 PCI-CardBus Bridge", CB_TOPIC97}, 179 180 /* Cirrus Logic */ 181 {PCIC_ID_CLPD6832, "CLPD6832 PCI-CardBus Bridge", CB_CIRRUS}, 182 {PCIC_ID_CLPD6833, "CLPD6833 PCI-CardBus Bridge", CB_CIRRUS}, 183 {PCIC_ID_CLPD6834, "CLPD6834 PCI-CardBus Bridge", CB_CIRRUS}, 184 185 /* 02Micro */ 186 {PCIC_ID_OZ6832, "O2Micro OZ6832/6833 PCI-CardBus Bridge", CB_O2MICRO}, 187 {PCIC_ID_OZ6860, "O2Micro OZ6836/6860 PCI-CardBus Bridge", CB_O2MICRO}, 188 {PCIC_ID_OZ6872, "O2Micro OZ6812/6872 PCI-CardBus Bridge", CB_O2MICRO}, 189 {PCIC_ID_OZ6912, "O2Micro OZ6912/6972 PCI-CardBus Bridge", CB_O2MICRO}, 190 {PCIC_ID_OZ6922, "O2Micro OZ6922 PCI-CardBus Bridge", CB_O2MICRO}, 191 {PCIC_ID_OZ6933, "O2Micro OZ6933 PCI-CardBus Bridge", CB_O2MICRO}, 192 {PCIC_ID_OZ711E1, "O2Micro OZ711E1 PCI-CardBus Bridge", CB_O2MICRO}, 193 {PCIC_ID_OZ711EC1, "O2Micro OZ711EC1/M1 PCI-CardBus Bridge", CB_O2MICRO}, 194 {PCIC_ID_OZ711E2, "O2Micro OZ711E2 PCI-CardBus Bridge", CB_O2MICRO}, 195 {PCIC_ID_OZ711M1, "O2Micro OZ711M1 PCI-CardBus Bridge", CB_O2MICRO}, 196 {PCIC_ID_OZ711M2, "O2Micro OZ711M2 PCI-CardBus Bridge", CB_O2MICRO}, 197 {PCIC_ID_OZ711M3, "O2Micro OZ711M3 PCI-CardBus Bridge", CB_O2MICRO}, 198 199 /* SMC */ 200 {PCIC_ID_SMC_34C90, "SMC 34C90 PCI-CardBus Bridge", CB_CIRRUS}, 201 202 /* sentinel */ 203 {0 /* null id */, "unknown", CB_UNKNOWN}, 204 }; 205 206 /************************************************************************/ 207 /* Probe/Attach */ 208 /************************************************************************/ 209 210 static int 211 cbb_chipset(uint32_t pci_id, const char **namep) 212 { 213 struct yenta_chipinfo *ycp; 214 215 for (ycp = yc_chipsets; ycp->yc_id != 0 && pci_id != ycp->yc_id; ++ycp) 216 continue; 217 if (namep != NULL) 218 *namep = ycp->yc_name; 219 return (ycp->yc_chiptype); 220 } 221 222 static int 223 cbb_pci_probe(device_t brdev) 224 { 225 const char *name; 226 uint8_t progif, subclass, class; 227 228 /* 229 * Do we know that we support the chipset? If so, then we 230 * accept the device. 231 */ 232 if (cbb_chipset(pci_get_devid(brdev), &name) != CB_UNKNOWN) { 233 device_set_desc(brdev, name); 234 return (0); 235 } 236 237 /* 238 * We do support generic CardBus bridges. All that we've seen 239 * to date have progif 0 (the Yenta spec, and successors mandate 240 * this). 241 */ 242 class = pci_get_class(brdev); 243 subclass = pci_get_subclass(brdev); 244 progif = pci_get_progif(brdev); 245 if (class == PCIC_BRIDGE && subclass == PCIS_BRIDGE_CARDBUS && 246 progif == 0) { 247 device_set_desc(brdev, "PCI-CardBus Bridge"); 248 return (0); 249 } 250 return (ENXIO); 251 } 252 253 /* 254 * Still need this because the pci code only does power for type 0 255 * header devices. 256 */ 257 static void 258 cbb_powerstate_d0(device_t dev) 259 { 260 u_int32_t membase, irq; 261 262 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) { 263 /* Save important PCI config data. */ 264 membase = pci_read_config(dev, CBBR_SOCKBASE, 4); 265 irq = pci_read_config(dev, PCIR_INTLINE, 4); 266 267 /* Reset the power state. */ 268 device_printf(dev, "chip is in D%d power mode " 269 "-- setting to D0\n", pci_get_powerstate(dev)); 270 271 pci_set_powerstate(dev, PCI_POWERSTATE_D0); 272 273 /* Restore PCI config data. */ 274 pci_write_config(dev, CBBR_SOCKBASE, membase, 4); 275 pci_write_config(dev, PCIR_INTLINE, irq, 4); 276 } 277 } 278 279 /* 280 * Print out the config space 281 */ 282 static void 283 cbb_print_config(device_t dev) 284 { 285 int i; 286 287 device_printf(dev, "PCI Configuration space:"); 288 for (i = 0; i < 256; i += 4) { 289 if (i % 16 == 0) 290 kprintf("\n 0x%02x: ", i); 291 kprintf("0x%08x ", pci_read_config(dev, i, 4)); 292 } 293 kprintf("\n"); 294 } 295 296 static int 297 cbb_pci_attach(device_t brdev) 298 { 299 static int curr_bus_number = 2; /* XXX EVILE BAD (see below) */ 300 301 struct cbb_softc *sc = device_get_softc(brdev); 302 int rid, pribus; 303 device_t parent; 304 305 parent = device_get_parent(brdev); 306 307 sc->chipset = cbb_chipset(pci_get_devid(brdev), NULL); 308 sc->dev = brdev; 309 sc->cbdev = NULL; 310 sc->exca[0].pccarddev = NULL; 311 sc->domain = pci_get_domain(brdev); 312 sc->secbus = pci_read_config(brdev, PCIR_SECBUS_2, 1); 313 sc->subbus = pci_read_config(brdev, PCIR_SUBBUS_2, 1); 314 sc->pribus = pcib_get_bus(parent); 315 SLIST_INIT(&sc->rl); 316 cbb_powerstate_d0(brdev); 317 318 rid = CBBR_SOCKBASE; 319 sc->base_res = bus_alloc_resource_any(brdev, SYS_RES_MEMORY, &rid, 320 RF_ACTIVE); 321 if (!sc->base_res) { 322 device_printf(brdev, "Could not grab register memory\n"); 323 return (ENOMEM); 324 } else { 325 DEVPRINTF((brdev, "Found memory at %08lx\n", 326 rman_get_start(sc->base_res))); 327 } 328 329 sc->bst = rman_get_bustag(sc->base_res); 330 sc->bsh = rman_get_bushandle(sc->base_res); 331 exca_init(&sc->exca[0], brdev, sc->bst, sc->bsh, CBB_EXCA_OFFSET); 332 sc->exca[0].flags |= EXCA_HAS_MEMREG_WIN; 333 sc->exca[0].chipset = EXCA_CARDBUS; 334 sc->chipinit = cbb_chipinit; 335 sc->chipinit(sc); 336 337 /* 338 * This is a gross hack. We should be scanning the entire pci 339 * tree, assigning bus numbers in a way such that we (1) can 340 * reserve 1 extra bus just in case and (2) all sub busses 341 * are in an appropriate range. 342 */ 343 DEVPRINTF((brdev, "Secondary bus is %d\n", sc->secbus)); 344 pribus = pci_read_config(brdev, PCIR_PRIBUS_2, 1); 345 if (sc->secbus == 0 || sc->pribus != pribus) { 346 if (curr_bus_number <= sc->pribus) 347 curr_bus_number = sc->pribus + 1; 348 if (pribus != sc->pribus) { 349 DEVPRINTF((brdev, "Setting primary bus to %d\n", 350 sc->pribus)); 351 pci_write_config(brdev, PCIR_PRIBUS_2, sc->pribus, 1); 352 } 353 sc->secbus = curr_bus_number++; 354 sc->subbus = curr_bus_number++; 355 DEVPRINTF((brdev, "Secondary bus set to %d subbus %d\n", 356 sc->secbus, sc->subbus)); 357 pci_write_config(brdev, PCIR_SECBUS_2, sc->secbus, 1); 358 pci_write_config(brdev, PCIR_SUBBUS_2, sc->subbus, 1); 359 } 360 361 /* attach children */ 362 sc->cbdev = device_add_child(brdev, "cardbus", -1); 363 if (sc->cbdev == NULL) 364 DEVPRINTF((brdev, "WARNING: cannot add cardbus bus.\n")); 365 else if (device_probe_and_attach(sc->cbdev) != 0) 366 DEVPRINTF((brdev, "WARNING: cannot attach cardbus bus!\n")); 367 368 sc->exca[0].pccarddev = device_add_child(brdev, "pccard", -1); 369 if (sc->exca[0].pccarddev == NULL) 370 DEVPRINTF((brdev, "WARNING: cannot add pccard bus.\n")); 371 else if (device_probe_and_attach(sc->exca[0].pccarddev) != 0) 372 DEVPRINTF((brdev, "WARNING: cannot attach pccard bus.\n")); 373 374 /* Map and establish the interrupt. */ 375 rid = 0; 376 sc->irq_res = bus_alloc_resource_any(brdev, SYS_RES_IRQ, &rid, 377 RF_SHAREABLE | RF_ACTIVE); 378 if (sc->irq_res == NULL) { 379 kprintf("cbb: Unable to map IRQ...\n"); 380 goto err; 381 } 382 383 if (bus_setup_intr(brdev, sc->irq_res, INTR_MPSAFE, cbb_intr, sc, 384 &sc->intrhand, NULL)) { 385 device_printf(brdev, "couldn't establish interrupt"); 386 goto err; 387 } 388 389 /* reset 16-bit pcmcia bus */ 390 exca_clrb(&sc->exca[0], EXCA_INTR, EXCA_INTR_RESET); 391 392 /* turn off power */ 393 cbb_power(brdev, CARD_OFF); 394 395 /* CSC Interrupt: Card detect interrupt on */ 396 cbb_setb(sc, CBB_SOCKET_MASK, CBB_SOCKET_MASK_CD); 397 398 /* reset interrupt */ 399 cbb_set(sc, CBB_SOCKET_EVENT, cbb_get(sc, CBB_SOCKET_EVENT)); 400 401 if (bootverbose) 402 cbb_print_config(brdev); 403 404 /* Start the thread */ 405 if (kthread_create(cbb_event_thread, sc, &sc->event_thread, 406 "%s", device_get_nameunit(brdev))) { 407 device_printf(brdev, "unable to create event thread.\n"); 408 panic("cbb_create_event_thread"); 409 } 410 return (0); 411 err: 412 if (sc->irq_res) 413 bus_release_resource(brdev, SYS_RES_IRQ, 0, sc->irq_res); 414 if (sc->base_res) { 415 bus_release_resource(brdev, SYS_RES_MEMORY, CBBR_SOCKBASE, 416 sc->base_res); 417 } 418 return (ENOMEM); 419 } 420 421 static void 422 cbb_chipinit(struct cbb_softc *sc) 423 { 424 uint32_t mux, sysctrl, reg; 425 426 /* Set CardBus latency timer */ 427 if (pci_read_config(sc->dev, PCIR_SECLAT_1, 1) < 0x20) 428 pci_write_config(sc->dev, PCIR_SECLAT_1, 0x20, 1); 429 430 /* Set PCI latency timer */ 431 if (pci_read_config(sc->dev, PCIR_LATTIMER, 1) < 0x20) 432 pci_write_config(sc->dev, PCIR_LATTIMER, 0x20, 1); 433 434 /* Enable memory access */ 435 PCI_MASK_CONFIG(sc->dev, PCIR_COMMAND, 436 | PCIM_CMD_MEMEN 437 | PCIM_CMD_PORTEN 438 | PCIM_CMD_BUSMASTEREN, 2); 439 440 /* disable Legacy IO */ 441 switch (sc->chipset) { 442 case CB_RF5C46X: 443 PCI_MASK_CONFIG(sc->dev, CBBR_BRIDGECTRL, 444 & ~(CBBM_BRIDGECTRL_RL_3E0_EN | 445 CBBM_BRIDGECTRL_RL_3E2_EN), 2); 446 break; 447 default: 448 pci_write_config(sc->dev, CBBR_LEGACY, 0x0, 4); 449 break; 450 } 451 452 /* Use PCI interrupt for interrupt routing */ 453 PCI_MASK2_CONFIG(sc->dev, CBBR_BRIDGECTRL, 454 & ~(CBBM_BRIDGECTRL_MASTER_ABORT | 455 CBBM_BRIDGECTRL_INTR_IREQ_ISA_EN), 456 | CBBM_BRIDGECTRL_WRITE_POST_EN, 457 2); 458 459 /* 460 * XXX this should be a function table, ala OLDCARD. This means 461 * that we could more easily support ISA interrupts for pccard 462 * cards if we had to. 463 */ 464 switch (sc->chipset) { 465 case CB_TI113X: 466 /* 467 * The TI 1031, TI 1130 and TI 1131 all require another bit 468 * be set to enable PCI routing of interrupts, and then 469 * a bit for each of the CSC and Function interrupts we 470 * want routed. 471 */ 472 PCI_MASK_CONFIG(sc->dev, CBBR_CBCTRL, 473 | CBBM_CBCTRL_113X_PCI_INTR | 474 CBBM_CBCTRL_113X_PCI_CSC | CBBM_CBCTRL_113X_PCI_IRQ_EN, 475 1); 476 PCI_MASK_CONFIG(sc->dev, CBBR_DEVCTRL, 477 & ~(CBBM_DEVCTRL_INT_SERIAL | 478 CBBM_DEVCTRL_INT_PCI), 1); 479 break; 480 case CB_TI12XX: 481 /* 482 * Some TI 12xx (and [14][45]xx) based pci cards 483 * sometimes have issues with the MFUNC register not 484 * being initialized due to a bad EEPROM on board. 485 * Laptops that this matters on have this register 486 * properly initialized. 487 * 488 * The TI125X parts have a different register. 489 */ 490 mux = pci_read_config(sc->dev, CBBR_MFUNC, 4); 491 sysctrl = pci_read_config(sc->dev, CBBR_SYSCTRL, 4); 492 if (mux == 0) { 493 mux = (mux & ~CBBM_MFUNC_PIN0) | 494 CBBM_MFUNC_PIN0_INTA; 495 if ((sysctrl & CBBM_SYSCTRL_INTRTIE) == 0) 496 mux = (mux & ~CBBM_MFUNC_PIN1) | 497 CBBM_MFUNC_PIN1_INTB; 498 pci_write_config(sc->dev, CBBR_MFUNC, mux, 4); 499 } 500 /*FALLTHROUGH*/ 501 case CB_TI125X: 502 /* 503 * Disable zoom video. Some machines initialize this 504 * improperly and exerpience has shown that this helps 505 * prevent strange behavior. 506 */ 507 pci_write_config(sc->dev, CBBR_MMCTRL, 0, 4); 508 break; 509 case CB_O2MICRO: 510 /* 511 * Issue #1: INT# generated at the same time as 512 * selected ISA IRQ. When IREQ# or STSCHG# is active, 513 * in addition to the ISA IRQ being generated, INT# 514 * will also be generated at the same time. 515 * 516 * Some of the older controllers have an issue in 517 * which the slot's PCI INT# will be asserted whenever 518 * IREQ# or STSCGH# is asserted even if ExCA registers 519 * 03h or 05h have an ISA IRQ selected. 520 * 521 * The fix for this issue, which will work for any 522 * controller (old or new), is to set ExCA registers 523 * 3Ah (slot 0) & 7Ah (slot 1) bits 7:4 = 1010b. 524 * These bits are undocumented. By setting this 525 * register (of each slot) to '1010xxxxb' a routing of 526 * IREQ# to INTC# and STSCHG# to INTC# is selected. 527 * Since INTC# isn't connected there will be no 528 * unexpected PCI INT when IREQ# or STSCHG# is active. 529 * However, INTA# (slot 0) or INTB# (slot 1) will 530 * still be correctly generated if NO ISA IRQ is 531 * selected (ExCA regs 03h or 05h are cleared). 532 */ 533 reg = exca_getb(&sc->exca[0], EXCA_O2MICRO_CTRL_C); 534 reg = (reg & 0x0f) | 535 EXCA_O2CC_IREQ_INTC | EXCA_O2CC_STSCHG_INTC; 536 exca_putb(&sc->exca[0], EXCA_O2MICRO_CTRL_C, reg); 537 538 break; 539 case CB_TOPIC97: 540 /* 541 * Disable Zoom Video, ToPIC 97, 100. 542 */ 543 pci_write_config(sc->dev, CBBR_TOPIC_ZV_CONTROL, 0, 1); 544 /* 545 * ToPIC 97, 100 546 * At offset 0xa1: INTERRUPT CONTROL register 547 * 0x1: Turn on INT interrupts. 548 */ 549 PCI_MASK_CONFIG(sc->dev, CBBR_TOPIC_INTCTRL, 550 | CBBM_TOPIC_INTCTRL_INTIRQSEL, 1); 551 goto topic_common; 552 case CB_TOPIC95: 553 /* 554 * SOCKETCTRL appears to be TOPIC 95/B specific 555 */ 556 PCI_MASK_CONFIG(sc->dev, CBBR_TOPIC_SOCKETCTRL, 557 | CBBM_TOPIC_SOCKETCTRL_SCR_IRQSEL, 4); 558 559 topic_common:; 560 /* 561 * At offset 0xa0: SLOT CONTROL 562 * 0x80 Enable CardBus Functionality 563 * 0x40 Enable CardBus and PC Card registers 564 * 0x20 Lock ID in exca regs 565 * 0x10 Write protect ID in config regs 566 * Clear the rest of the bits, which defaults the slot 567 * in legacy mode to 0x3e0 and offset 0. (legacy 568 * mode is determined elsewhere) 569 */ 570 pci_write_config(sc->dev, CBBR_TOPIC_SLOTCTRL, 571 CBBM_TOPIC_SLOTCTRL_SLOTON | 572 CBBM_TOPIC_SLOTCTRL_SLOTEN | 573 CBBM_TOPIC_SLOTCTRL_ID_LOCK | 574 CBBM_TOPIC_SLOTCTRL_ID_WP, 1); 575 576 /* 577 * At offset 0xa3 Card Detect Control Register 578 * 0x80 CARDBUS enbale 579 * 0x01 Cleared for hardware change detect 580 */ 581 PCI_MASK2_CONFIG(sc->dev, CBBR_TOPIC_CDC, 582 | CBBM_TOPIC_CDC_CARDBUS, 583 & ~CBBM_TOPIC_CDC_SWDETECT, 4); 584 break; 585 } 586 587 /* 588 * Need to tell ExCA registers to CSC interrupts route via PCI 589 * interrupts. There are two ways to do this. Once is to set 590 * INTR_ENABLE and the other is to set CSC to 0. Since both 591 * methods are mutually compatible, we do both. 592 */ 593 exca_putb(&sc->exca[0], EXCA_INTR, EXCA_INTR_ENABLE); 594 exca_putb(&sc->exca[0], EXCA_CSC_INTR, 0); 595 596 cbb_disable_func_intr(sc); 597 598 /* close all memory and io windows */ 599 pci_write_config(sc->dev, CBBR_MEMBASE0, 0xffffffff, 4); 600 pci_write_config(sc->dev, CBBR_MEMLIMIT0, 0, 4); 601 pci_write_config(sc->dev, CBBR_MEMBASE1, 0xffffffff, 4); 602 pci_write_config(sc->dev, CBBR_MEMLIMIT1, 0, 4); 603 pci_write_config(sc->dev, CBBR_IOBASE0, 0xffffffff, 4); 604 pci_write_config(sc->dev, CBBR_IOLIMIT0, 0, 4); 605 pci_write_config(sc->dev, CBBR_IOBASE1, 0xffffffff, 4); 606 pci_write_config(sc->dev, CBBR_IOLIMIT1, 0, 4); 607 } 608 609 static int 610 cbb_route_interrupt(device_t pcib, device_t dev, int pin) 611 { 612 struct cbb_softc *sc = (struct cbb_softc *)device_get_softc(pcib); 613 614 return (rman_get_start(sc->irq_res)); 615 } 616 617 static device_method_t cbb_methods[] = { 618 /* Device interface */ 619 DEVMETHOD(device_probe, cbb_pci_probe), 620 DEVMETHOD(device_attach, cbb_pci_attach), 621 DEVMETHOD(device_detach, cbb_detach), 622 DEVMETHOD(device_shutdown, cbb_shutdown), 623 DEVMETHOD(device_suspend, cbb_suspend), 624 DEVMETHOD(device_resume, cbb_resume), 625 626 /* bus methods */ 627 DEVMETHOD(bus_print_child, bus_generic_print_child), 628 DEVMETHOD(bus_read_ivar, cbb_read_ivar), 629 DEVMETHOD(bus_write_ivar, cbb_write_ivar), 630 DEVMETHOD(bus_alloc_resource, cbb_alloc_resource), 631 DEVMETHOD(bus_release_resource, cbb_release_resource), 632 DEVMETHOD(bus_activate_resource, cbb_activate_resource), 633 DEVMETHOD(bus_deactivate_resource, cbb_deactivate_resource), 634 DEVMETHOD(bus_driver_added, cbb_driver_added), 635 DEVMETHOD(bus_child_detached, cbb_child_detached), 636 DEVMETHOD(bus_setup_intr, cbb_setup_intr), 637 DEVMETHOD(bus_teardown_intr, cbb_teardown_intr), 638 DEVMETHOD(bus_child_present, cbb_child_present), 639 640 /* 16-bit card interface */ 641 DEVMETHOD(card_set_res_flags, cbb_pcic_set_res_flags), 642 DEVMETHOD(card_set_memory_offset, cbb_pcic_set_memory_offset), 643 644 /* power interface */ 645 DEVMETHOD(power_enable_socket, cbb_power_enable_socket), 646 DEVMETHOD(power_disable_socket, cbb_power_disable_socket), 647 648 /* pcib compatibility interface */ 649 DEVMETHOD(pcib_maxslots, cbb_maxslots), 650 DEVMETHOD(pcib_read_config, cbb_read_config), 651 DEVMETHOD(pcib_write_config, cbb_write_config), 652 DEVMETHOD(pcib_route_interrupt, cbb_route_interrupt), 653 654 {0,0} 655 }; 656 657 static driver_t cbb_driver = { 658 "cbb", 659 cbb_methods, 660 sizeof(struct cbb_softc) 661 }; 662 663 DRIVER_MODULE(cbb, pci, cbb_driver, cbb_devclass, 0, 0); 664 MODULE_DEPEND(cbb, exca, 1, 1, 1); 665