2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2000-2001 Jonathan Chen All rights reserved.
5 * Copyright (c) 2002-2004 M. Warner Losh <imp@FreeBSD.org>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * Copyright (c) 1998, 1999 and 2000
32 * HAYAKAWA Koichi. All rights reserved.
34 * Redistribution and use in source and binary forms, with or without
35 * modification, are permitted provided that the following conditions
37 * 1. Redistributions of source code must retain the above copyright
38 * notice, this list of conditions and the following disclaimer.
39 * 2. Redistributions in binary form must reproduce the above copyright
40 * notice, this list of conditions and the following disclaimer in the
41 * documentation and/or other materials provided with the distribution.
42 * 3. All advertising materials mentioning features or use of this software
43 * must display the following acknowledgement:
44 * This product includes software developed by HAYAKAWA Koichi.
45 * 4. The name of the author may not be used to endorse or promote products
46 * derived from this software without specific prior written permission.
48 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
49 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
50 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
51 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
52 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
53 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
54 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
55 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
56 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
57 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
61 * Driver for PCI to CardBus Bridge chips
65 * http://www-s.ti.com/cgi-bin/sc/generic2.cgi?family=PCI+CARDBUS+CONTROLLERS
67 * Written by Jonathan Chen <jon@freebsd.org>
68 * The author would like to acknowledge:
69 * * HAYAKAWA Koichi: Author of the NetBSD code for the same thing
70 * * Warner Losh: Newbus/newcard guru and author of the pccard side of things
71 * * YAMAMOTO Shigeru: Author of another FreeBSD cardbus driver
72 * * David Cross: Author of the initial ugly hack for a specific cardbus card
75 #include <sys/cdefs.h>
76 __FBSDID("$FreeBSD$");
78 #include <sys/param.h>
79 #include <sys/systm.h>
81 #include <sys/condvar.h>
82 #include <sys/errno.h>
83 #include <sys/kernel.h>
85 #include <sys/malloc.h>
86 #include <sys/mutex.h>
87 #include <sys/sysctl.h>
88 #include <sys/kthread.h>
90 #include <machine/bus.h>
92 #include <machine/resource.h>
93 #include <sys/module.h>
95 #include <dev/pci/pcireg.h>
96 #include <dev/pci/pcivar.h>
97 #include <dev/pci/pcib_private.h>
99 #include <dev/pccard/pccardreg.h>
100 #include <dev/pccard/pccardvar.h>
102 #include <dev/exca/excareg.h>
103 #include <dev/exca/excavar.h>
105 #include <dev/pccbb/pccbbreg.h>
106 #include <dev/pccbb/pccbbvar.h>
108 #include "power_if.h"
112 #define DPRINTF(x) do { if (cbb_debug) printf x; } while (0)
113 #define DEVPRINTF(x) do { if (cbb_debug) device_printf x; } while (0)
115 #define PCI_MASK_CONFIG(DEV,REG,MASK,SIZE) \
116 pci_write_config(DEV, REG, pci_read_config(DEV, REG, SIZE) MASK, SIZE)
117 #define PCI_MASK2_CONFIG(DEV,REG,MASK1,MASK2,SIZE) \
118 pci_write_config(DEV, REG, ( \
119 pci_read_config(DEV, REG, SIZE) MASK1) MASK2, SIZE)
121 static void cbb_chipinit(struct cbb_softc *sc);
122 static int cbb_pci_filt(void *arg);
124 static struct yenta_chipinfo {
129 /* Texas Instruments chips */
130 {PCIC_ID_TI1031, "TI1031 PCI-PC Card Bridge", CB_TI113X},
131 {PCIC_ID_TI1130, "TI1130 PCI-CardBus Bridge", CB_TI113X},
132 {PCIC_ID_TI1131, "TI1131 PCI-CardBus Bridge", CB_TI113X},
134 {PCIC_ID_TI1210, "TI1210 PCI-CardBus Bridge", CB_TI12XX},
135 {PCIC_ID_TI1211, "TI1211 PCI-CardBus Bridge", CB_TI12XX},
136 {PCIC_ID_TI1220, "TI1220 PCI-CardBus Bridge", CB_TI12XX},
137 {PCIC_ID_TI1221, "TI1221 PCI-CardBus Bridge", CB_TI12XX},
138 {PCIC_ID_TI1225, "TI1225 PCI-CardBus Bridge", CB_TI12XX},
139 {PCIC_ID_TI1250, "TI1250 PCI-CardBus Bridge", CB_TI125X},
140 {PCIC_ID_TI1251, "TI1251 PCI-CardBus Bridge", CB_TI125X},
141 {PCIC_ID_TI1251B,"TI1251B PCI-CardBus Bridge",CB_TI125X},
142 {PCIC_ID_TI1260, "TI1260 PCI-CardBus Bridge", CB_TI12XX},
143 {PCIC_ID_TI1260B,"TI1260B PCI-CardBus Bridge",CB_TI12XX},
144 {PCIC_ID_TI1410, "TI1410 PCI-CardBus Bridge", CB_TI12XX},
145 {PCIC_ID_TI1420, "TI1420 PCI-CardBus Bridge", CB_TI12XX},
146 {PCIC_ID_TI1421, "TI1421 PCI-CardBus Bridge", CB_TI12XX},
147 {PCIC_ID_TI1450, "TI1450 PCI-CardBus Bridge", CB_TI125X}, /*SIC!*/
148 {PCIC_ID_TI1451, "TI1451 PCI-CardBus Bridge", CB_TI12XX},
149 {PCIC_ID_TI1510, "TI1510 PCI-CardBus Bridge", CB_TI12XX},
150 {PCIC_ID_TI1520, "TI1520 PCI-CardBus Bridge", CB_TI12XX},
151 {PCIC_ID_TI4410, "TI4410 PCI-CardBus Bridge", CB_TI12XX},
152 {PCIC_ID_TI4450, "TI4450 PCI-CardBus Bridge", CB_TI12XX},
153 {PCIC_ID_TI4451, "TI4451 PCI-CardBus Bridge", CB_TI12XX},
154 {PCIC_ID_TI4510, "TI4510 PCI-CardBus Bridge", CB_TI12XX},
155 {PCIC_ID_TI6411, "TI6411 PCI-CardBus Bridge", CB_TI12XX},
156 {PCIC_ID_TI6420, "TI6420 PCI-CardBus Bridge", CB_TI12XX},
157 {PCIC_ID_TI6420SC, "TI6420 PCI-CardBus Bridge", CB_TI12XX},
158 {PCIC_ID_TI7410, "TI7410 PCI-CardBus Bridge", CB_TI12XX},
159 {PCIC_ID_TI7510, "TI7510 PCI-CardBus Bridge", CB_TI12XX},
160 {PCIC_ID_TI7610, "TI7610 PCI-CardBus Bridge", CB_TI12XX},
161 {PCIC_ID_TI7610M, "TI7610 PCI-CardBus Bridge", CB_TI12XX},
162 {PCIC_ID_TI7610SD, "TI7610 PCI-CardBus Bridge", CB_TI12XX},
163 {PCIC_ID_TI7610MS, "TI7610 PCI-CardBus Bridge", CB_TI12XX},
166 {PCIC_ID_ENE_CB710, "ENE CB710 PCI-CardBus Bridge", CB_TI12XX},
167 {PCIC_ID_ENE_CB720, "ENE CB720 PCI-CardBus Bridge", CB_TI12XX},
168 {PCIC_ID_ENE_CB1211, "ENE CB1211 PCI-CardBus Bridge", CB_TI12XX},
169 {PCIC_ID_ENE_CB1225, "ENE CB1225 PCI-CardBus Bridge", CB_TI12XX},
170 {PCIC_ID_ENE_CB1410, "ENE CB1410 PCI-CardBus Bridge", CB_TI12XX},
171 {PCIC_ID_ENE_CB1420, "ENE CB1420 PCI-CardBus Bridge", CB_TI12XX},
174 {PCIC_ID_RICOH_RL5C465, "RF5C465 PCI-CardBus Bridge", CB_RF5C46X},
175 {PCIC_ID_RICOH_RL5C466, "RF5C466 PCI-CardBus Bridge", CB_RF5C46X},
176 {PCIC_ID_RICOH_RL5C475, "RF5C475 PCI-CardBus Bridge", CB_RF5C47X},
177 {PCIC_ID_RICOH_RL5C476, "RF5C476 PCI-CardBus Bridge", CB_RF5C47X},
178 {PCIC_ID_RICOH_RL5C477, "RF5C477 PCI-CardBus Bridge", CB_RF5C47X},
179 {PCIC_ID_RICOH_RL5C478, "RF5C478 PCI-CardBus Bridge", CB_RF5C47X},
181 /* Toshiba products */
182 {PCIC_ID_TOPIC95, "ToPIC95 PCI-CardBus Bridge", CB_TOPIC95},
183 {PCIC_ID_TOPIC95B, "ToPIC95B PCI-CardBus Bridge", CB_TOPIC95},
184 {PCIC_ID_TOPIC97, "ToPIC97 PCI-CardBus Bridge", CB_TOPIC97},
185 {PCIC_ID_TOPIC100, "ToPIC100 PCI-CardBus Bridge", CB_TOPIC97},
188 {PCIC_ID_CLPD6832, "CLPD6832 PCI-CardBus Bridge", CB_CIRRUS},
189 {PCIC_ID_CLPD6833, "CLPD6833 PCI-CardBus Bridge", CB_CIRRUS},
190 {PCIC_ID_CLPD6834, "CLPD6834 PCI-CardBus Bridge", CB_CIRRUS},
193 {PCIC_ID_OZ6832, "O2Micro OZ6832/6833 PCI-CardBus Bridge", CB_O2MICRO},
194 {PCIC_ID_OZ6860, "O2Micro OZ6836/6860 PCI-CardBus Bridge", CB_O2MICRO},
195 {PCIC_ID_OZ6872, "O2Micro OZ6812/6872 PCI-CardBus Bridge", CB_O2MICRO},
196 {PCIC_ID_OZ6912, "O2Micro OZ6912/6972 PCI-CardBus Bridge", CB_O2MICRO},
197 {PCIC_ID_OZ6922, "O2Micro OZ6922 PCI-CardBus Bridge", CB_O2MICRO},
198 {PCIC_ID_OZ6933, "O2Micro OZ6933 PCI-CardBus Bridge", CB_O2MICRO},
199 {PCIC_ID_OZ711E1, "O2Micro OZ711E1 PCI-CardBus Bridge", CB_O2MICRO},
200 {PCIC_ID_OZ711EC1, "O2Micro OZ711EC1/M1 PCI-CardBus Bridge", CB_O2MICRO},
201 {PCIC_ID_OZ711E2, "O2Micro OZ711E2 PCI-CardBus Bridge", CB_O2MICRO},
202 {PCIC_ID_OZ711M1, "O2Micro OZ711M1 PCI-CardBus Bridge", CB_O2MICRO},
203 {PCIC_ID_OZ711M2, "O2Micro OZ711M2 PCI-CardBus Bridge", CB_O2MICRO},
204 {PCIC_ID_OZ711M3, "O2Micro OZ711M3 PCI-CardBus Bridge", CB_O2MICRO},
207 {PCIC_ID_SMC_34C90, "SMC 34C90 PCI-CardBus Bridge", CB_CIRRUS},
210 {0 /* null id */, "unknown", CB_UNKNOWN},
213 /************************************************************************/
215 /************************************************************************/
218 cbb_chipset(uint32_t pci_id, const char **namep)
220 struct yenta_chipinfo *ycp;
222 for (ycp = yc_chipsets; ycp->yc_id != 0 && pci_id != ycp->yc_id; ++ycp)
225 *namep = ycp->yc_name;
226 return (ycp->yc_chiptype);
230 cbb_pci_probe(device_t brdev)
238 * Do we know that we support the chipset? If so, then we
241 if (cbb_chipset(pci_get_devid(brdev), &name) != CB_UNKNOWN) {
242 device_set_desc(brdev, name);
243 return (BUS_PROBE_DEFAULT);
247 * We do support generic CardBus bridges. All that we've seen
248 * to date have progif 0 (the Yenta spec, and successors mandate
251 baseclass = pci_get_class(brdev);
252 subclass = pci_get_subclass(brdev);
253 progif = pci_get_progif(brdev);
254 if (baseclass == PCIC_BRIDGE &&
255 subclass == PCIS_BRIDGE_CARDBUS && progif == 0) {
256 device_set_desc(brdev, "PCI-CardBus Bridge");
257 return (BUS_PROBE_GENERIC);
263 * Print out the config space
266 cbb_print_config(device_t dev)
270 device_printf(dev, "PCI Configuration space:");
271 for (i = 0; i < 256; i += 4) {
273 printf("\n 0x%02x: ", i);
274 printf("0x%08x ", pci_read_config(dev, i, 4));
280 cbb_pci_attach(device_t brdev)
282 #if !(defined(NEW_PCIB) && defined(PCI_RES_BUS))
283 static int curr_bus_number = 2; /* XXX EVILE BAD (see below) */
286 struct cbb_softc *sc = (struct cbb_softc *)device_get_softc(brdev);
287 struct sysctl_ctx_list *sctx;
288 struct sysctl_oid *soid;
292 parent = device_get_parent(brdev);
293 mtx_init(&sc->mtx, device_get_nameunit(brdev), "cbb", MTX_DEF);
294 sc->chipset = cbb_chipset(pci_get_devid(brdev), NULL);
297 sc->exca[0].pccarddev = NULL;
298 sc->domain = pci_get_domain(brdev);
299 sc->pribus = pcib_get_bus(parent);
300 #if defined(NEW_PCIB) && defined(PCI_RES_BUS)
301 pci_write_config(brdev, PCIR_PRIBUS_2, sc->pribus, 1);
302 pcib_setup_secbus(brdev, &sc->bus, 1);
304 sc->bus.sec = pci_read_config(brdev, PCIR_SECBUS_2, 1);
305 sc->bus.sub = pci_read_config(brdev, PCIR_SUBBUS_2, 1);
310 sc->base_res = bus_alloc_resource_any(brdev, SYS_RES_MEMORY, &rid,
313 device_printf(brdev, "Could not map register memory\n");
314 mtx_destroy(&sc->mtx);
317 DEVPRINTF((brdev, "Found memory at %jx\n",
318 rman_get_start(sc->base_res)));
321 sc->bst = rman_get_bustag(sc->base_res);
322 sc->bsh = rman_get_bushandle(sc->base_res);
323 exca_init(&sc->exca[0], brdev, sc->bst, sc->bsh, CBB_EXCA_OFFSET);
324 sc->exca[0].flags |= EXCA_HAS_MEMREG_WIN;
325 sc->exca[0].chipset = EXCA_CARDBUS;
326 sc->chipinit = cbb_chipinit;
330 sctx = device_get_sysctl_ctx(brdev);
331 soid = device_get_sysctl_tree(brdev);
332 SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "domain",
333 CTLFLAG_RD, &sc->domain, 0, "Domain number");
334 SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "pribus",
335 CTLFLAG_RD, &sc->pribus, 0, "Primary bus number");
336 SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "secbus",
337 CTLFLAG_RD, &sc->bus.sec, 0, "Secondary bus number");
338 SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "subbus",
339 CTLFLAG_RD, &sc->bus.sub, 0, "Subordinate bus number");
341 SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "memory",
342 CTLFLAG_RD, &sc->subbus, 0, "Memory window open");
343 SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "premem",
344 CTLFLAG_RD, &sc->subbus, 0, "Prefetch memory window open");
345 SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "io1",
346 CTLFLAG_RD, &sc->subbus, 0, "io range 1 open");
347 SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "io2",
348 CTLFLAG_RD, &sc->subbus, 0, "io range 2 open");
351 #if !(defined(NEW_PCIB) && defined(PCI_RES_BUS))
353 * This is a gross hack. We should be scanning the entire pci
354 * tree, assigning bus numbers in a way such that we (1) can
355 * reserve 1 extra bus just in case and (2) all sub buses
356 * are in an appropriate range.
358 DEVPRINTF((brdev, "Secondary bus is %d\n", sc->bus.sec));
359 pribus = pci_read_config(brdev, PCIR_PRIBUS_2, 1);
360 if (sc->bus.sec == 0 || sc->pribus != pribus) {
361 if (curr_bus_number <= sc->pribus)
362 curr_bus_number = sc->pribus + 1;
363 if (pribus != sc->pribus) {
364 DEVPRINTF((brdev, "Setting primary bus to %d\n",
366 pci_write_config(brdev, PCIR_PRIBUS_2, sc->pribus, 1);
368 sc->bus.sec = curr_bus_number++;
369 sc->bus.sub = curr_bus_number++;
370 DEVPRINTF((brdev, "Secondary bus set to %d subbus %d\n",
371 sc->bus.sec, sc->bus.sub));
372 pci_write_config(brdev, PCIR_SECBUS_2, sc->bus.sec, 1);
373 pci_write_config(brdev, PCIR_SUBBUS_2, sc->bus.sub, 1);
377 /* attach children */
378 sc->cbdev = device_add_child(brdev, "cardbus", -1);
379 if (sc->cbdev == NULL)
380 DEVPRINTF((brdev, "WARNING: cannot add cardbus bus.\n"));
381 else if (device_probe_and_attach(sc->cbdev) != 0)
382 DEVPRINTF((brdev, "WARNING: cannot attach cardbus bus!\n"));
384 sc->exca[0].pccarddev = device_add_child(brdev, "pccard", -1);
385 if (sc->exca[0].pccarddev == NULL)
386 DEVPRINTF((brdev, "WARNING: cannot add pccard bus.\n"));
387 else if (device_probe_and_attach(sc->exca[0].pccarddev) != 0)
388 DEVPRINTF((brdev, "WARNING: cannot attach pccard bus.\n"));
390 /* Map and establish the interrupt. */
392 sc->irq_res = bus_alloc_resource_any(brdev, SYS_RES_IRQ, &rid,
393 RF_SHAREABLE | RF_ACTIVE);
394 if (sc->irq_res == NULL) {
395 device_printf(brdev, "Unable to map IRQ...\n");
399 if (bus_setup_intr(brdev, sc->irq_res, INTR_TYPE_AV | INTR_MPSAFE,
400 cbb_pci_filt, NULL, sc, &sc->intrhand)) {
401 device_printf(brdev, "couldn't establish interrupt\n");
405 /* reset 16-bit pcmcia bus */
406 exca_clrb(&sc->exca[0], EXCA_INTR, EXCA_INTR_RESET);
409 cbb_power(brdev, CARD_OFF);
411 /* CSC Interrupt: Card detect interrupt on */
412 cbb_setb(sc, CBB_SOCKET_MASK, CBB_SOCKET_MASK_CD);
414 /* reset interrupt */
415 cbb_set(sc, CBB_SOCKET_EVENT, cbb_get(sc, CBB_SOCKET_EVENT));
418 cbb_print_config(brdev);
420 /* Start the thread */
421 if (kproc_create(cbb_event_thread, sc, &sc->event_thread, 0, 0,
422 "%s event thread", device_get_nameunit(brdev))) {
423 device_printf(brdev, "unable to create event thread.\n");
424 panic("cbb_create_event_thread");
426 sc->sc_root_token = root_mount_hold(device_get_nameunit(sc->dev));
430 bus_release_resource(brdev, SYS_RES_IRQ, 0, sc->irq_res);
432 bus_release_resource(brdev, SYS_RES_MEMORY, CBBR_SOCKBASE,
435 mtx_destroy(&sc->mtx);
440 cbb_pci_detach(device_t brdev)
442 #if defined(NEW_PCIB) && defined(PCI_RES_BUS)
443 struct cbb_softc *sc = device_get_softc(brdev);
447 error = cbb_detach(brdev);
448 #if defined(NEW_PCIB) && defined(PCI_RES_BUS)
450 pcib_free_secbus(brdev, &sc->bus);
456 cbb_chipinit(struct cbb_softc *sc)
458 uint32_t mux, sysctrl, reg;
460 /* Set CardBus latency timer */
461 if (pci_read_config(sc->dev, PCIR_SECLAT_2, 1) < 0x20)
462 pci_write_config(sc->dev, PCIR_SECLAT_2, 0x20, 1);
464 /* Set PCI latency timer */
465 if (pci_read_config(sc->dev, PCIR_LATTIMER, 1) < 0x20)
466 pci_write_config(sc->dev, PCIR_LATTIMER, 0x20, 1);
468 /* Enable DMA, memory access for this card and I/O access for children */
469 pci_enable_busmaster(sc->dev);
470 pci_enable_io(sc->dev, SYS_RES_IOPORT);
471 pci_enable_io(sc->dev, SYS_RES_MEMORY);
473 /* disable Legacy IO */
474 switch (sc->chipset) {
476 PCI_MASK_CONFIG(sc->dev, CBBR_BRIDGECTRL,
477 & ~(CBBM_BRIDGECTRL_RL_3E0_EN |
478 CBBM_BRIDGECTRL_RL_3E2_EN), 2);
481 pci_write_config(sc->dev, CBBR_LEGACY, 0x0, 4);
485 /* Use PCI interrupt for interrupt routing */
486 PCI_MASK2_CONFIG(sc->dev, CBBR_BRIDGECTRL,
487 & ~(CBBM_BRIDGECTRL_MASTER_ABORT |
488 CBBM_BRIDGECTRL_INTR_IREQ_ISA_EN),
489 | CBBM_BRIDGECTRL_WRITE_POST_EN,
493 * XXX this should be a function table, ala OLDCARD. This means
494 * that we could more easily support ISA interrupts for pccard
495 * cards if we had to.
497 switch (sc->chipset) {
500 * The TI 1031, TI 1130 and TI 1131 all require another bit
501 * be set to enable PCI routing of interrupts, and then
502 * a bit for each of the CSC and Function interrupts we
505 PCI_MASK_CONFIG(sc->dev, CBBR_CBCTRL,
506 | CBBM_CBCTRL_113X_PCI_INTR |
507 CBBM_CBCTRL_113X_PCI_CSC | CBBM_CBCTRL_113X_PCI_IRQ_EN,
509 PCI_MASK_CONFIG(sc->dev, CBBR_DEVCTRL,
510 & ~(CBBM_DEVCTRL_INT_SERIAL |
511 CBBM_DEVCTRL_INT_PCI), 1);
515 * Some TI 12xx (and [14][45]xx) based pci cards
516 * sometimes have issues with the MFUNC register not
517 * being initialized due to a bad EEPROM on board.
518 * Laptops that this matters on have this register
519 * properly initialized.
521 * The TI125X parts have a different register.
523 * Note: Only the lower two nibbles matter. When set
524 * to 0, the MFUNC{0,1} pins are GPIO, which isn't
525 * going to work out too well because we specifically
526 * program these parts to parallel interrupt signalling
527 * elsewhere. We preserve the upper bits of this
528 * register since changing them have subtle side effects
529 * for different variants of the card and are
530 * extremely difficult to exaustively test.
532 * Also, the TI 1510/1520 changed the default for the MFUNC
533 * register from 0x0 to 0x1000 to enable IRQSER by default.
534 * We want to be careful to avoid overriding that, and the
535 * below test will do that. Should this check prove to be
536 * too permissive, we should just check against 0 and 0x1000
537 * and not touch it otherwise.
539 mux = pci_read_config(sc->dev, CBBR_MFUNC, 4);
540 sysctrl = pci_read_config(sc->dev, CBBR_SYSCTRL, 4);
541 if ((mux & (CBBM_MFUNC_PIN0 | CBBM_MFUNC_PIN1)) == 0) {
542 mux = (mux & ~CBBM_MFUNC_PIN0) |
543 CBBM_MFUNC_PIN0_INTA;
544 if ((sysctrl & CBBM_SYSCTRL_INTRTIE) == 0)
545 mux = (mux & ~CBBM_MFUNC_PIN1) |
546 CBBM_MFUNC_PIN1_INTB;
547 pci_write_config(sc->dev, CBBR_MFUNC, mux, 4);
552 * Disable zoom video. Some machines initialize this
553 * improperly and exerpience has shown that this helps
554 * prevent strange behavior. We don't support zoom
555 * video anyway, so no harm can come from this.
557 pci_write_config(sc->dev, CBBR_MMCTRL, 0, 4);
561 * Issue #1: INT# generated at the same time as
562 * selected ISA IRQ. When IREQ# or STSCHG# is active,
563 * in addition to the ISA IRQ being generated, INT#
564 * will also be generated at the same time.
566 * Some of the older controllers have an issue in
567 * which the slot's PCI INT# will be asserted whenever
568 * IREQ# or STSCGH# is asserted even if ExCA registers
569 * 03h or 05h have an ISA IRQ selected.
571 * The fix for this issue, which will work for any
572 * controller (old or new), is to set ExCA registers
573 * 3Ah (slot 0) & 7Ah (slot 1) bits 7:4 = 1010b.
574 * These bits are undocumented. By setting this
575 * register (of each slot) to '1010xxxxb' a routing of
576 * IREQ# to INTC# and STSCHG# to INTC# is selected.
577 * Since INTC# isn't connected there will be no
578 * unexpected PCI INT when IREQ# or STSCHG# is active.
579 * However, INTA# (slot 0) or INTB# (slot 1) will
580 * still be correctly generated if NO ISA IRQ is
581 * selected (ExCA regs 03h or 05h are cleared).
583 reg = exca_getb(&sc->exca[0], EXCA_O2MICRO_CTRL_C);
585 EXCA_O2CC_IREQ_INTC | EXCA_O2CC_STSCHG_INTC;
586 exca_putb(&sc->exca[0], EXCA_O2MICRO_CTRL_C, reg);
590 * Disable Zoom Video, ToPIC 97, 100.
592 pci_write_config(sc->dev, TOPIC97_ZV_CONTROL, 0, 1);
595 * At offset 0xa1: INTERRUPT CONTROL register
596 * 0x1: Turn on INT interrupts.
598 PCI_MASK_CONFIG(sc->dev, TOPIC_INTCTRL,
599 | TOPIC97_INTCTRL_INTIRQSEL, 1);
602 * Need to assert support for low voltage cards
604 exca_setb(&sc->exca[0], EXCA_TOPIC97_CTRL,
605 EXCA_TOPIC97_CTRL_LV_MASK);
609 * SOCKETCTRL appears to be TOPIC 95/B specific
611 PCI_MASK_CONFIG(sc->dev, TOPIC95_SOCKETCTRL,
612 | TOPIC95_SOCKETCTRL_SCR_IRQSEL, 4);
616 * At offset 0xa0: SLOT CONTROL
617 * 0x80 Enable CardBus Functionality
618 * 0x40 Enable CardBus and PC Card registers
619 * 0x20 Lock ID in exca regs
620 * 0x10 Write protect ID in config regs
621 * Clear the rest of the bits, which defaults the slot
622 * in legacy mode to 0x3e0 and offset 0. (legacy
623 * mode is determined elsewhere)
625 pci_write_config(sc->dev, TOPIC_SLOTCTRL,
626 TOPIC_SLOTCTRL_SLOTON |
627 TOPIC_SLOTCTRL_SLOTEN |
628 TOPIC_SLOTCTRL_ID_LOCK |
629 TOPIC_SLOTCTRL_ID_WP, 1);
632 * At offset 0xa3 Card Detect Control Register
633 * 0x80 CARDBUS enbale
634 * 0x01 Cleared for hardware change detect
636 PCI_MASK2_CONFIG(sc->dev, TOPIC_CDC,
637 | TOPIC_CDC_CARDBUS, & ~TOPIC_CDC_SWDETECT, 4);
642 * Need to tell ExCA registers to CSC interrupts route via PCI
643 * interrupts. There are two ways to do this. One is to set
644 * INTR_ENABLE and the other is to set CSC to 0. Since both
645 * methods are mutually compatible, we do both.
647 exca_putb(&sc->exca[0], EXCA_INTR, EXCA_INTR_ENABLE);
648 exca_putb(&sc->exca[0], EXCA_CSC_INTR, 0);
650 cbb_disable_func_intr(sc);
652 /* close all memory and io windows */
653 pci_write_config(sc->dev, CBBR_MEMBASE0, 0xffffffff, 4);
654 pci_write_config(sc->dev, CBBR_MEMLIMIT0, 0, 4);
655 pci_write_config(sc->dev, CBBR_MEMBASE1, 0xffffffff, 4);
656 pci_write_config(sc->dev, CBBR_MEMLIMIT1, 0, 4);
657 pci_write_config(sc->dev, CBBR_IOBASE0, 0xffffffff, 4);
658 pci_write_config(sc->dev, CBBR_IOLIMIT0, 0, 4);
659 pci_write_config(sc->dev, CBBR_IOBASE1, 0xffffffff, 4);
660 pci_write_config(sc->dev, CBBR_IOLIMIT1, 0, 4);
664 cbb_route_interrupt(device_t pcib, device_t dev, int pin)
666 struct cbb_softc *sc = (struct cbb_softc *)device_get_softc(pcib);
668 return (rman_get_start(sc->irq_res));
672 cbb_pci_shutdown(device_t brdev)
674 struct cbb_softc *sc = (struct cbb_softc *)device_get_softc(brdev);
677 * We're about to pull the rug out from the card, so mark it as
678 * gone to prevent harm.
683 * Place the cards in reset, turn off the interrupts and power
686 PCI_MASK_CONFIG(brdev, CBBR_BRIDGECTRL, |CBBM_BRIDGECTRL_RESET, 2);
687 exca_clrb(&sc->exca[0], EXCA_INTR, EXCA_INTR_RESET);
688 cbb_set(sc, CBB_SOCKET_MASK, 0);
689 cbb_set(sc, CBB_SOCKET_EVENT, 0xffffffff);
690 cbb_power(brdev, CARD_OFF);
693 * For paranoia, turn off all address decoding. Really not needed,
694 * it seems, but it can't hurt
696 exca_putb(&sc->exca[0], EXCA_ADDRWIN_ENABLE, 0);
697 pci_write_config(brdev, CBBR_MEMBASE0, 0, 4);
698 pci_write_config(brdev, CBBR_MEMLIMIT0, 0, 4);
699 pci_write_config(brdev, CBBR_MEMBASE1, 0, 4);
700 pci_write_config(brdev, CBBR_MEMLIMIT1, 0, 4);
701 pci_write_config(brdev, CBBR_IOBASE0, 0, 4);
702 pci_write_config(brdev, CBBR_IOLIMIT0, 0, 4);
703 pci_write_config(brdev, CBBR_IOBASE1, 0, 4);
704 pci_write_config(brdev, CBBR_IOLIMIT1, 0, 4);
709 cbb_pci_filt(void *arg)
711 struct cbb_softc *sc = arg;
714 int retval = FILTER_STRAY;
717 * Some chips also require us to read the old ExCA registe for card
718 * status change when we route CSC vis PCI. This isn't supposed to be
719 * required, but it clears the interrupt state on some chipsets.
720 * Maybe there's a setting that would obviate its need. Maybe we
721 * should test the status bits and deal with them, but so far we've
722 * not found any machines that don't also give us the socket status
725 * This call used to be unconditional. However, further research
726 * suggests that we hit this condition when the card READY interrupt
727 * fired. So now we only read it for 16-bit cards, and we only claim
728 * the interrupt if READY is set. If this still causes problems, then
729 * the next step would be to read this if we have a 16-bit card *OR*
730 * we have no card. We treat the READY signal as if it were the power
731 * completion signal. Some bridges may double signal things here, bit
732 * signalling twice should be OK since we only sleep on the powerintr
733 * in one place and a double wakeup would be benign there.
735 if (sc->flags & CBB_16BIT_CARD) {
736 csc = exca_getb(&sc->exca[0], EXCA_CSC);
737 if (csc & EXCA_CSC_READY) {
738 atomic_add_int(&sc->powerintr, 1);
739 wakeup((void *)&sc->powerintr);
740 retval = FILTER_HANDLED;
745 * Read the socket event. Sometimes, the theory goes, the PCI bus is
746 * so loaded that it cannot satisfy the read request, so we get
747 * garbage back from the following read. We have to filter out the
748 * garbage so that we don't spontaneously reset the card under high
749 * load. PCI isn't supposed to act like this. No doubt this is a bug
750 * in the PCI bridge chipset (or cbb brige) that's being used in
751 * certain amd64 laptops today. Work around the issue by assuming
752 * that any bits we don't know about being set means that we got
755 sockevent = cbb_get(sc, CBB_SOCKET_EVENT);
756 if (sockevent != 0 && (sockevent & ~CBB_SOCKET_EVENT_VALID_MASK) == 0) {
758 * If anything has happened to the socket, we assume that the
759 * card is no longer OK, and we shouldn't call its ISR. We
760 * set cardok as soon as we've attached the card. This helps
761 * in a noisy eject, which happens all too often when users
762 * are ejecting their PC Cards.
764 * We use this method in preference to checking to see if the
765 * card is still there because the check suffers from a race
766 * condition in the bouncing case.
768 #define DELTA (CBB_SOCKET_MASK_CD)
769 if (sockevent & DELTA) {
770 cbb_clrb(sc, CBB_SOCKET_MASK, DELTA);
771 cbb_set(sc, CBB_SOCKET_EVENT, DELTA);
773 cbb_disable_func_intr(sc);
774 wakeup(&sc->intrhand);
779 * Wakeup anybody waiting for a power interrupt. We have to
780 * use atomic_add_int for wakups on other cores.
782 if (sockevent & CBB_SOCKET_EVENT_POWER) {
783 cbb_clrb(sc, CBB_SOCKET_MASK, CBB_SOCKET_EVENT_POWER);
784 cbb_set(sc, CBB_SOCKET_EVENT, CBB_SOCKET_EVENT_POWER);
785 atomic_add_int(&sc->powerintr, 1);
786 wakeup((void *)&sc->powerintr);
790 * Status change interrupts aren't presently used in the
791 * rest of the driver. For now, just ACK them.
793 if (sockevent & CBB_SOCKET_EVENT_CSTS)
794 cbb_set(sc, CBB_SOCKET_EVENT, CBB_SOCKET_EVENT_CSTS);
795 retval = FILTER_HANDLED;
800 #if defined(NEW_PCIB) && defined(PCI_RES_BUS)
801 static struct resource *
802 cbb_pci_alloc_resource(device_t bus, device_t child, int type, int *rid,
803 rman_res_t start, rman_res_t end, rman_res_t count, u_int flags)
805 struct cbb_softc *sc;
807 sc = device_get_softc(bus);
808 if (type == PCI_RES_BUS)
809 return (pcib_alloc_subbus(&sc->bus, child, rid, start, end,
811 return (cbb_alloc_resource(bus, child, type, rid, start, end, count,
816 cbb_pci_adjust_resource(device_t bus, device_t child, int type,
817 struct resource *r, rman_res_t start, rman_res_t end)
819 struct cbb_softc *sc;
821 sc = device_get_softc(bus);
822 if (type == PCI_RES_BUS) {
823 if (!rman_is_region_manager(r, &sc->bus.rman))
825 return (rman_adjust_resource(r, start, end));
827 return (bus_generic_adjust_resource(bus, child, type, r, start, end));
831 cbb_pci_release_resource(device_t bus, device_t child, int type, int rid,
834 struct cbb_softc *sc;
837 sc = device_get_softc(bus);
838 if (type == PCI_RES_BUS) {
839 if (!rman_is_region_manager(r, &sc->bus.rman))
841 if (rman_get_flags(r) & RF_ACTIVE) {
842 error = bus_deactivate_resource(child, type, rid, r);
846 return (rman_release_resource(r));
848 return (cbb_release_resource(bus, child, type, rid, r));
852 /************************************************************************/
853 /* PCI compat methods */
854 /************************************************************************/
857 cbb_maxslots(device_t brdev)
863 cbb_read_config(device_t brdev, u_int b, u_int s, u_int f, u_int reg, int width)
866 * Pass through to the next ppb up the chain (i.e. our grandparent).
868 return (PCIB_READ_CONFIG(device_get_parent(device_get_parent(brdev)),
869 b, s, f, reg, width));
873 cbb_write_config(device_t brdev, u_int b, u_int s, u_int f, u_int reg, uint32_t val,
877 * Pass through to the next ppb up the chain (i.e. our grandparent).
879 PCIB_WRITE_CONFIG(device_get_parent(device_get_parent(brdev)),
880 b, s, f, reg, val, width);
884 cbb_pci_suspend(device_t brdev)
887 struct cbb_softc *sc = device_get_softc(brdev);
889 error = bus_generic_suspend(brdev);
892 cbb_set(sc, CBB_SOCKET_MASK, 0); /* Quiet hardware */
893 sc->cardok = 0; /* Card is bogus now */
898 cbb_pci_resume(device_t brdev)
901 struct cbb_softc *sc = (struct cbb_softc *)device_get_softc(brdev);
905 * In the APM and early ACPI era, BIOSes saved the PCI config
906 * registers. As chips became more complicated, that functionality moved
907 * into the ACPI code / tables. We must therefore, restore the settings
908 * we made here to make sure the device come back. Transitions to Dx
909 * from D0 and back to D0 cause the bridge to lose its config space, so
910 * all the bus mappings and such are preserved.
912 * The PCI layer handles standard PCI registers like the
913 * command register and BARs, but cbb-specific registers are
918 /* reset interrupt -- Do we really need to do this? */
919 tmp = cbb_get(sc, CBB_SOCKET_EVENT);
920 cbb_set(sc, CBB_SOCKET_EVENT, tmp);
922 /* CSC Interrupt: Card detect interrupt on */
923 cbb_setb(sc, CBB_SOCKET_MASK, CBB_SOCKET_MASK_CD);
925 /* Signal the thread to wakeup. */
926 wakeup(&sc->intrhand);
928 error = bus_generic_resume(brdev);
933 static device_method_t cbb_methods[] = {
934 /* Device interface */
935 DEVMETHOD(device_probe, cbb_pci_probe),
936 DEVMETHOD(device_attach, cbb_pci_attach),
937 DEVMETHOD(device_detach, cbb_pci_detach),
938 DEVMETHOD(device_shutdown, cbb_pci_shutdown),
939 DEVMETHOD(device_suspend, cbb_pci_suspend),
940 DEVMETHOD(device_resume, cbb_pci_resume),
943 DEVMETHOD(bus_read_ivar, cbb_read_ivar),
944 DEVMETHOD(bus_write_ivar, cbb_write_ivar),
945 #if defined(NEW_PCIB) && defined(PCI_RES_BUS)
946 DEVMETHOD(bus_alloc_resource, cbb_pci_alloc_resource),
947 DEVMETHOD(bus_adjust_resource, cbb_pci_adjust_resource),
948 DEVMETHOD(bus_release_resource, cbb_pci_release_resource),
950 DEVMETHOD(bus_alloc_resource, cbb_alloc_resource),
951 DEVMETHOD(bus_release_resource, cbb_release_resource),
953 DEVMETHOD(bus_activate_resource, cbb_activate_resource),
954 DEVMETHOD(bus_deactivate_resource, cbb_deactivate_resource),
955 DEVMETHOD(bus_driver_added, cbb_driver_added),
956 DEVMETHOD(bus_child_detached, cbb_child_detached),
957 DEVMETHOD(bus_setup_intr, cbb_setup_intr),
958 DEVMETHOD(bus_teardown_intr, cbb_teardown_intr),
959 DEVMETHOD(bus_child_present, cbb_child_present),
961 /* 16-bit card interface */
962 DEVMETHOD(card_set_res_flags, cbb_pcic_set_res_flags),
963 DEVMETHOD(card_set_memory_offset, cbb_pcic_set_memory_offset),
965 /* power interface */
966 DEVMETHOD(power_enable_socket, cbb_power_enable_socket),
967 DEVMETHOD(power_disable_socket, cbb_power_disable_socket),
969 /* pcib compatibility interface */
970 DEVMETHOD(pcib_maxslots, cbb_maxslots),
971 DEVMETHOD(pcib_read_config, cbb_read_config),
972 DEVMETHOD(pcib_write_config, cbb_write_config),
973 DEVMETHOD(pcib_route_interrupt, cbb_route_interrupt),
978 static driver_t cbb_driver = {
981 sizeof(struct cbb_softc)
984 DRIVER_MODULE(cbb, pci, cbb_driver, cbb_devclass, 0, 0);
985 MODULE_PNP_INFO("W32:vendor/device;D:#", pci, cbb, yc_chipsets,
986 nitems(yc_chipsets) - 1);
987 MODULE_DEPEND(cbb, exca, 1, 1, 1);