2 * Copyright (c) 2002-2004 M. Warner Losh.
3 * Copyright (c) 2000-2001 Jonathan Chen.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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.
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
30 * Copyright (c) 1998, 1999 and 2000
31 * HAYAKAWA Koichi. All rights reserved.
33 * Redistribution and use in source and binary forms, with or without
34 * modification, are permitted provided that the following conditions
36 * 1. Redistributions of source code must retain the above copyright
37 * notice, this list of conditions and the following disclaimer.
38 * 2. Redistributions in binary form must reproduce the above copyright
39 * notice, this list of conditions and the following disclaimer in the
40 * documentation and/or other materials provided with the distribution.
41 * 3. All advertising materials mentioning features or use of this software
42 * must display the following acknowledgement:
43 * This product includes software developed by HAYAKAWA Koichi.
44 * 4. The name of the author may not be used to endorse or promote products
45 * derived from this software without specific prior written permission.
47 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
48 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
49 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
50 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
51 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
52 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
53 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
54 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
55 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
56 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
60 * Driver for PCI to CardBus Bridge chips
61 * and PCI to PCMCIA Bridge chips
62 * and ISA to PCMCIA host adapters
63 * and C Bus to PCMCIA host adapters
67 * http://www-s.ti.com/cgi-bin/sc/generic2.cgi?family=PCI+CARDBUS+CONTROLLERS
69 * Written by Jonathan Chen <jon@freebsd.org>
70 * The author would like to acknowledge:
71 * * HAYAKAWA Koichi: Author of the NetBSD code for the same thing
72 * * Warner Losh: Newbus/newcard guru and author of the pccard side of things
73 * * YAMAMOTO Shigeru: Author of another FreeBSD cardbus driver
74 * * David Cross: Author of the initial ugly hack for a specific cardbus card
77 #include <sys/cdefs.h>
78 __FBSDID("$FreeBSD$");
80 #include <sys/param.h>
82 #include <sys/condvar.h>
83 #include <sys/errno.h>
84 #include <sys/kernel.h>
85 #include <sys/module.h>
86 #include <sys/kthread.h>
87 #include <sys/interrupt.h>
89 #include <sys/malloc.h>
90 #include <sys/mutex.h>
93 #include <sys/sysctl.h>
94 #include <sys/systm.h>
95 #include <machine/bus.h>
96 #include <machine/resource.h>
98 #include <dev/pci/pcireg.h>
99 #include <dev/pci/pcivar.h>
101 #include <dev/pccard/pccardreg.h>
102 #include <dev/pccard/pccardvar.h>
104 #include <dev/exca/excareg.h>
105 #include <dev/exca/excavar.h>
107 #include <dev/pccbb/pccbbreg.h>
108 #include <dev/pccbb/pccbbvar.h>
110 #include "power_if.h"
114 #define DPRINTF(x) do { if (cbb_debug) printf x; } while (0)
115 #define DEVPRINTF(x) do { if (cbb_debug) device_printf x; } while (0)
117 #define PCI_MASK_CONFIG(DEV,REG,MASK,SIZE) \
118 pci_write_config(DEV, REG, pci_read_config(DEV, REG, SIZE) MASK, SIZE)
119 #define PCI_MASK2_CONFIG(DEV,REG,MASK1,MASK2,SIZE) \
120 pci_write_config(DEV, REG, ( \
121 pci_read_config(DEV, REG, SIZE) MASK1) MASK2, SIZE)
123 #define CBB_CARD_PRESENT(s) ((s & CBB_STATE_CD) == 0)
125 #define CBB_START_MEM 0x88000000
126 #define CBB_START_32_IO 0x1000
127 #define CBB_START_16_IO 0x100
129 devclass_t cbb_devclass;
132 SYSCTL_NODE(_hw, OID_AUTO, cbb, CTLFLAG_RD, 0, "CBB parameters");
134 /* There's no way to say TUNEABLE_LONG to get the right types */
135 u_long cbb_start_mem = CBB_START_MEM;
136 TUNABLE_ULONG("hw.cbb.start_memory", &cbb_start_mem);
137 SYSCTL_ULONG(_hw_cbb, OID_AUTO, start_memory, CTLFLAG_RW,
138 &cbb_start_mem, CBB_START_MEM,
139 "Starting address for memory allocations");
141 u_long cbb_start_16_io = CBB_START_16_IO;
142 TUNABLE_ULONG("hw.cbb.start_16_io", &cbb_start_16_io);
143 SYSCTL_ULONG(_hw_cbb, OID_AUTO, start_16_io, CTLFLAG_RW,
144 &cbb_start_16_io, CBB_START_16_IO,
145 "Starting ioport for 16-bit cards");
147 u_long cbb_start_32_io = CBB_START_32_IO;
148 TUNABLE_ULONG("hw.cbb.start_32_io", &cbb_start_32_io);
149 SYSCTL_ULONG(_hw_cbb, OID_AUTO, start_32_io, CTLFLAG_RW,
150 &cbb_start_32_io, CBB_START_32_IO,
151 "Starting ioport for 32-bit cards");
154 TUNABLE_INT("hw.cbb.debug", &cbb_debug);
155 SYSCTL_ULONG(_hw_cbb, OID_AUTO, debug, CTLFLAG_RW, &cbb_debug, 0,
156 "Verbose cardbus bridge debugging");
158 static void cbb_insert(struct cbb_softc *sc);
159 static void cbb_removal(struct cbb_softc *sc);
160 static uint32_t cbb_detect_voltage(device_t brdev);
161 static void cbb_cardbus_reset_power(device_t brdev, device_t child, int on);
162 static int cbb_cardbus_io_open(device_t brdev, int win, uint32_t start,
164 static int cbb_cardbus_mem_open(device_t brdev, int win,
165 uint32_t start, uint32_t end);
166 static void cbb_cardbus_auto_open(struct cbb_softc *sc, int type);
167 static int cbb_cardbus_activate_resource(device_t brdev, device_t child,
168 int type, int rid, struct resource *res);
169 static int cbb_cardbus_deactivate_resource(device_t brdev,
170 device_t child, int type, int rid, struct resource *res);
171 static struct resource *cbb_cardbus_alloc_resource(device_t brdev,
172 device_t child, int type, int *rid, u_long start,
173 u_long end, u_long count, u_int flags);
174 static int cbb_cardbus_release_resource(device_t brdev, device_t child,
175 int type, int rid, struct resource *res);
176 static int cbb_cardbus_power_enable_socket(device_t brdev,
178 static int cbb_cardbus_power_disable_socket(device_t brdev,
180 static int cbb_func_filt(void *arg);
181 static void cbb_func_intr(void *arg);
184 cbb_remove_res(struct cbb_softc *sc, struct resource *res)
186 struct cbb_reslist *rle;
188 SLIST_FOREACH(rle, &sc->rl, link) {
189 if (rle->res == res) {
190 SLIST_REMOVE(&sc->rl, rle, cbb_reslist, link);
197 static struct resource *
198 cbb_find_res(struct cbb_softc *sc, int type, int rid)
200 struct cbb_reslist *rle;
202 SLIST_FOREACH(rle, &sc->rl, link)
203 if (SYS_RES_MEMORY == rle->type && rid == rle->rid)
209 cbb_insert_res(struct cbb_softc *sc, struct resource *res, int type,
212 struct cbb_reslist *rle;
215 * Need to record allocated resource so we can iterate through
218 rle = malloc(sizeof(struct cbb_reslist), M_DEVBUF, M_NOWAIT);
220 panic("cbb_cardbus_alloc_resource: can't record entry!");
224 SLIST_INSERT_HEAD(&sc->rl, rle, link);
228 cbb_destroy_res(struct cbb_softc *sc)
230 struct cbb_reslist *rle;
232 while ((rle = SLIST_FIRST(&sc->rl)) != NULL) {
233 device_printf(sc->dev, "Danger Will Robinson: Resource "
234 "left allocated! This is a bug... "
235 "(rid=%x, type=%d, addr=%lx)\n", rle->rid, rle->type,
236 rman_get_start(rle->res));
237 SLIST_REMOVE_HEAD(&sc->rl, link);
243 * Disable function interrupts by telling the bridge to generate IRQ1
244 * interrupts. These interrupts aren't really generated by the chip, since
245 * IRQ1 is reserved. Some chipsets assert INTA# inappropriately during
246 * initialization, so this helps to work around the problem.
248 * XXX We can't do this workaround for all chipsets, because this
249 * XXX causes interference with the keyboard because somechipsets will
250 * XXX actually signal IRQ1 over their serial interrupt connections to
251 * XXX the south bridge. Disable it it for now.
254 cbb_disable_func_intr(struct cbb_softc *sc)
259 reg = (exca_getb(&sc->exca[0], EXCA_INTR) & ~EXCA_INTR_IRQ_MASK) |
260 EXCA_INTR_IRQ_RESERVED1;
261 exca_putb(&sc->exca[0], EXCA_INTR, reg);
266 * Enable function interrupts. We turn on function interrupts when the card
267 * requests an interrupt. The PCMCIA standard says that we should set
268 * the lower 4 bits to 0 to route via PCI. Note: we call this for both
269 * CardBus and R2 (PC Card) cases, but it should have no effect on CardBus
273 cbb_enable_func_intr(struct cbb_softc *sc)
277 reg = (exca_getb(&sc->exca[0], EXCA_INTR) & ~EXCA_INTR_IRQ_MASK) |
279 exca_putb(&sc->exca[0], EXCA_INTR, reg);
283 cbb_detach(device_t brdev)
285 struct cbb_softc *sc = device_get_softc(brdev);
287 int tmp, tries, error, numdevs;
290 * Before we delete the children (which we have to do because
291 * attach doesn't check for children busses correctly), we have
292 * to detach the children. Even if we didn't need to delete the
293 * children, we have to detach them.
295 error = bus_generic_detach(brdev);
300 * Since the attach routine doesn't search for children before it
301 * attaches them to this device, we must delete them here in order
302 * for the kldload/unload case to work. If we failed to do that, then
303 * we'd get duplicate devices when cbb.ko was reloaded.
307 error = device_get_children(brdev, &devlist, &numdevs);
311 * Try hard to cope with low memory.
313 if (error == ENOMEM) {
314 pause("cbbnomem", 1);
317 } while (tries-- > 0);
318 for (tmp = 0; tmp < numdevs; tmp++)
319 device_delete_child(brdev, devlist[tmp]);
320 free(devlist, M_TEMP);
322 /* Turn off the interrupts */
323 cbb_set(sc, CBB_SOCKET_MASK, 0);
325 /* reset 16-bit pcmcia bus */
326 exca_clrb(&sc->exca[0], EXCA_INTR, EXCA_INTR_RESET);
329 cbb_power(brdev, CARD_OFF);
331 /* Ack the interrupt */
332 cbb_set(sc, CBB_SOCKET_EVENT, 0xffffffff);
335 * Wait for the thread to die. kproc_exit will do a wakeup
336 * on the event thread's struct thread * so that we know it is
337 * safe to proceed. IF the thread is running, set the please
338 * die flag and wait for it to comply. Since the wakeup on
339 * the event thread happens only in kproc_exit, we don't
342 bus_teardown_intr(brdev, sc->irq_res, sc->intrhand);
344 sc->flags |= CBB_KTHREAD_DONE;
345 while (sc->flags & CBB_KTHREAD_RUNNING) {
346 DEVPRINTF((sc->dev, "Waiting for thread to die\n"));
347 wakeup(&sc->intrhand);
348 msleep(sc->event_thread, &sc->mtx, PWAIT, "cbbun", 0);
350 mtx_unlock(&sc->mtx);
352 bus_release_resource(brdev, SYS_RES_IRQ, 0, sc->irq_res);
353 bus_release_resource(brdev, SYS_RES_MEMORY, CBBR_SOCKBASE,
355 mtx_destroy(&sc->mtx);
360 cbb_setup_intr(device_t dev, device_t child, struct resource *irq,
361 int flags, driver_filter_t *filt, driver_intr_t *intr, void *arg,
364 struct cbb_intrhand *ih;
365 struct cbb_softc *sc = device_get_softc(dev);
368 if (filt == NULL && intr == NULL)
370 ih = malloc(sizeof(struct cbb_intrhand), M_DEVBUF, M_NOWAIT);
379 * XXX need to turn on ISA interrupts, if we ever support them, but
380 * XXX for now that's all we need to do.
382 err = BUS_SETUP_INTR(device_get_parent(dev), child, irq, flags,
383 filt ? cbb_func_filt : NULL, intr ? cbb_func_intr : NULL, ih,
389 cbb_enable_func_intr(sc);
395 cbb_teardown_intr(device_t dev, device_t child, struct resource *irq,
398 struct cbb_intrhand *ih;
401 /* XXX Need to do different things for ISA interrupts. */
402 ih = (struct cbb_intrhand *) cookie;
403 err = BUS_TEARDOWN_INTR(device_get_parent(dev), child, irq,
413 cbb_driver_added(device_t brdev, driver_t *driver)
415 struct cbb_softc *sc = device_get_softc(brdev);
422 DEVICE_IDENTIFY(driver, brdev);
423 tmp = device_get_children(brdev, &devlist, &numdevs);
425 device_printf(brdev, "Cannot get children list, no reprobe\n");
428 for (tmp = 0; tmp < numdevs; tmp++) {
430 if (device_get_state(dev) == DS_NOTPRESENT &&
431 device_probe_and_attach(dev) == 0)
434 free(devlist, M_TEMP);
437 wakeup(&sc->intrhand);
441 cbb_child_detached(device_t brdev, device_t child)
443 struct cbb_softc *sc = device_get_softc(brdev);
445 /* I'm not sure we even need this */
446 if (child != sc->cbdev && child != sc->exca[0].pccarddev)
447 device_printf(brdev, "Unknown child detached: %s\n",
448 device_get_nameunit(child));
451 /************************************************************************/
453 /************************************************************************/
456 cbb_event_thread(void *arg)
458 struct cbb_softc *sc = arg;
464 sc->flags |= CBB_KTHREAD_RUNNING;
465 while ((sc->flags & CBB_KTHREAD_DONE) == 0) {
466 mtx_unlock(&sc->mtx);
468 status = cbb_get(sc, CBB_SOCKET_STATE);
469 DPRINTF(("Status is 0x%x\n", status));
470 if (!CBB_CARD_PRESENT(status)) {
471 not_a_card = 0; /* We know card type */
473 } else if (status & CBB_STATE_NOT_A_CARD) {
475 * Up to 10 times, try to rescan the card when we see
476 * NOT_A_CARD. 10 is somehwat arbitrary. When this
477 * pathology hits, there's a ~40% chance each try will
478 * fail. 10 tries takes about 5s and results in a
479 * 99.99% certainty of the results.
481 if (not_a_card++ < 10) {
483 "Not a card bit set, rescanning\n"));
484 cbb_setb(sc, CBB_SOCKET_FORCE, CBB_FORCE_CV_TEST);
486 device_printf(sc->dev,
487 "Can't determine card type\n");
490 not_a_card = 0; /* We know card type */
496 * First time through we need to tell mountroot that we're
499 if (sc->sc_root_token) {
500 root_mount_rel(sc->sc_root_token);
501 sc->sc_root_token = NULL;
505 * Wait until it has been 250ms since the last time we
506 * get an interrupt. We handle the rest of the interrupt
507 * at the top of the loop. Although we clear the bit in the
508 * ISR, we signal sc->cv from the detach path after we've
509 * set the CBB_KTHREAD_DONE bit, so we can't do a simple
512 * In our ISR, we turn off the card changed interrupt. Turn
513 * them back on here before we wait for them to happen. We
514 * turn them on/off so that we can tolerate a large latency
515 * between the time we signal cbb_event_thread and it gets
519 cbb_setb(sc, CBB_SOCKET_MASK, CBB_SOCKET_MASK_CD | CBB_SOCKET_MASK_CSTS);
520 msleep(&sc->intrhand, &sc->mtx, 0, "-", 0);
522 while (err != EWOULDBLOCK &&
523 (sc->flags & CBB_KTHREAD_DONE) == 0)
524 err = msleep(&sc->intrhand, &sc->mtx, 0, "-", hz / 5);
526 DEVPRINTF((sc->dev, "Thread terminating\n"));
527 sc->flags &= ~CBB_KTHREAD_RUNNING;
528 mtx_unlock(&sc->mtx);
532 /************************************************************************/
534 /************************************************************************/
537 cbb_insert(struct cbb_softc *sc)
539 uint32_t sockevent, sockstate;
541 sockevent = cbb_get(sc, CBB_SOCKET_EVENT);
542 sockstate = cbb_get(sc, CBB_SOCKET_STATE);
544 DEVPRINTF((sc->dev, "card inserted: event=0x%08x, state=%08x\n",
545 sockevent, sockstate));
547 if (sockstate & CBB_STATE_R2_CARD) {
548 if (device_is_attached(sc->exca[0].pccarddev)) {
549 sc->flags |= CBB_16BIT_CARD;
550 exca_insert(&sc->exca[0]);
552 device_printf(sc->dev,
553 "16-bit card inserted, but no pccard bus.\n");
555 } else if (sockstate & CBB_STATE_CB_CARD) {
556 if (device_is_attached(sc->cbdev)) {
557 sc->flags &= ~CBB_16BIT_CARD;
558 CARD_ATTACH_CARD(sc->cbdev);
560 device_printf(sc->dev,
561 "CardBus card inserted, but no cardbus bus.\n");
565 * We should power the card down, and try again a couple of
566 * times if this happens. XXX
568 device_printf(sc->dev, "Unsupported card type detected\n");
573 cbb_removal(struct cbb_softc *sc)
576 if (sc->flags & CBB_16BIT_CARD) {
577 exca_removal(&sc->exca[0]);
579 if (device_is_attached(sc->cbdev))
580 CARD_DETACH_CARD(sc->cbdev);
585 /************************************************************************/
586 /* Interrupt Handler */
587 /************************************************************************/
590 cbb_func_filt(void *arg)
592 struct cbb_intrhand *ih = (struct cbb_intrhand *)arg;
593 struct cbb_softc *sc = ih->sc;
596 * Make sure that the card is really there.
599 return (FILTER_STRAY);
600 if (!CBB_CARD_PRESENT(cbb_get(sc, CBB_SOCKET_STATE))) {
602 return (FILTER_HANDLED);
606 * nb: don't have to check for giant or not, since that's done in the
607 * ISR dispatch and one can't hold Giant in a filter anyway...
609 return ((*ih->filt)(ih->arg));
613 cbb_func_intr(void *arg)
615 struct cbb_intrhand *ih = (struct cbb_intrhand *)arg;
616 struct cbb_softc *sc = ih->sc;
619 * While this check may seem redundant, it helps close a race
620 * condition. If the card is ejected after the filter runs, but
621 * before this ISR can be scheduled, then we need to do the same
622 * filtering to prevent the card's ISR from being called. One could
623 * argue that the card's ISR should be able to cope, but experience
624 * has shown they can't always. This mitigates the problem by making
625 * the race quite a bit smaller. Properly written client ISRs should
626 * cope with the card going away in the middle of the ISR. We assume
627 * that drivers that are sophisticated enough to use filters don't
628 * need our protection. This also allows us to ensure they *ARE*
629 * called if their filter said they needed to be called.
631 if (ih->filt == NULL) {
634 if (!CBB_CARD_PRESENT(cbb_get(sc, CBB_SOCKET_STATE))) {
641 * Call the registered ithread interrupt handler. This entire routine
642 * will be called with Giant if this isn't an MP safe driver, or not
643 * if it is. Either way, we don't have to worry.
648 /************************************************************************/
649 /* Generic Power functions */
650 /************************************************************************/
653 cbb_detect_voltage(device_t brdev)
655 struct cbb_softc *sc = device_get_softc(brdev);
657 uint32_t vol = CARD_UKN_CARD;
659 psr = cbb_get(sc, CBB_SOCKET_STATE);
661 if (psr & CBB_STATE_5VCARD && psr & CBB_STATE_5VSOCK)
663 if (psr & CBB_STATE_3VCARD && psr & CBB_STATE_3VSOCK)
665 if (psr & CBB_STATE_XVCARD && psr & CBB_STATE_XVSOCK)
667 if (psr & CBB_STATE_YVCARD && psr & CBB_STATE_YVSOCK)
674 cbb_o2micro_power_hack(struct cbb_softc *sc)
679 * Issue #2: INT# not qualified with IRQ Routing Bit. An
680 * unexpected PCI INT# may be generated during PC Card
681 * initialization even with the IRQ Routing Bit Set with some
684 * This is a two part issue. The first part is that some of
685 * our older controllers have an issue in which the slot's PCI
686 * INT# is NOT qualified by the IRQ routing bit (PCI reg. 3Eh
687 * bit 7). Regardless of the IRQ routing bit, if NO ISA IRQ
688 * is selected (ExCA register 03h bits 3:0, of the slot, are
689 * cleared) we will generate INT# if IREQ# is asserted. The
690 * second part is because some PC Cards prematurally assert
691 * IREQ# before the ExCA registers are fully programmed. This
692 * in turn asserts INT# because ExCA register 03h bits 3:0
693 * (ISA IRQ Select) are not yet programmed.
695 * The fix for this issue, which will work for any controller
696 * (old or new), is to set ExCA register 03h bits 3:0 = 0001b
697 * (select IRQ1), of the slot, before turning on slot power.
698 * Selecting IRQ1 will result in INT# NOT being asserted
699 * (because IRQ1 is selected), and IRQ1 won't be asserted
700 * because our controllers don't generate IRQ1.
702 * Other, non O2Micro controllers will generate irq 1 in some
703 * situations, so we can't do this hack for everybody. Reports of
704 * keyboard controller's interrupts being suppressed occurred when
707 reg = exca_getb(&sc->exca[0], EXCA_INTR);
708 exca_putb(&sc->exca[0], EXCA_INTR, (reg & 0xf0) | 1);
713 * Restore the damage that cbb_o2micro_power_hack does to EXCA_INTR so
714 * we don't have an interrupt storm on power on. This has the efect of
715 * disabling card status change interrupts for the duration of poweron.
718 cbb_o2micro_power_hack2(struct cbb_softc *sc, uint8_t reg)
720 exca_putb(&sc->exca[0], EXCA_INTR, reg);
724 cbb_power(device_t brdev, int volts)
726 uint32_t status, sock_ctrl, reg_ctrl, mask;
727 struct cbb_softc *sc = device_get_softc(brdev);
733 sock_ctrl = cbb_get(sc, CBB_SOCKET_CONTROL);
735 sock_ctrl &= ~CBB_SOCKET_CTRL_VCCMASK;
736 switch (volts & CARD_VCCMASK) {
738 sock_ctrl |= CBB_SOCKET_CTRL_VCC_5V;
742 sock_ctrl |= CBB_SOCKET_CTRL_VCC_3V;
746 sock_ctrl |= CBB_SOCKET_CTRL_VCC_XV;
750 sock_ctrl |= CBB_SOCKET_CTRL_VCC_YV;
756 return (0); /* power NEVER changed */
760 sock_ctrl &= ~CBB_SOCKET_CTRL_VPPMASK;
761 sock_ctrl |= ((sock_ctrl >> 4) & 0x07);
763 if (cbb_get(sc, CBB_SOCKET_CONTROL) == sock_ctrl)
764 return (1); /* no change necessary */
765 DEVPRINTF((sc->dev, "cbb_power: %dV\n", volts));
766 if (volts != 0 && sc->chipset == CB_O2MICRO)
767 reg = cbb_o2micro_power_hack(sc);
770 * We have to mask the card change detect interrupt while we're
771 * messing with the power. It is allowed to bounce while we're
772 * messing with power as things settle down. In addition, we mask off
773 * the card's function interrupt by routing it via the ISA bus. This
774 * bit generally only affects 16-bit cards. Some bridges allow one to
775 * set another bit to have it also affect 32-bit cards. Since 32-bit
776 * cards are required to be better behaved, we don't bother to get
777 * into those bridge specific features.
779 * XXX I wonder if we need to enable the READY bit interrupt in the
780 * EXCA CSC register for 16-bit cards, and disable the CD bit?
782 mask = cbb_get(sc, CBB_SOCKET_MASK);
783 mask |= CBB_SOCKET_MASK_POWER;
784 mask &= ~CBB_SOCKET_MASK_CD;
785 cbb_set(sc, CBB_SOCKET_MASK, mask);
786 PCI_MASK_CONFIG(brdev, CBBR_BRIDGECTRL,
787 |CBBM_BRIDGECTRL_INTR_IREQ_ISA_EN, 2);
788 cbb_set(sc, CBB_SOCKET_CONTROL, sock_ctrl);
793 * We have a shortish timeout of 500ms here. Some bridges do
794 * not generate a POWER_CYCLE event for 16-bit cards. In
795 * those cases, we have to cope the best we can, and having
796 * only a short delay is better than the alternatives.
799 while (!(cbb_get(sc, CBB_SOCKET_STATE) & CBB_STATE_POWER_CYCLE) &&
800 cnt == sc->powerintr && sane-- > 0)
801 msleep(&sc->powerintr, &sc->mtx, 0, "-", hz / 20);
802 mtx_unlock(&sc->mtx);
804 * The TOPIC95B requires a little bit extra time to get its
805 * act together, so delay for an additional 100ms. Also as
806 * documented below, it doesn't seem to set the POWER_CYCLE
807 * bit, so don't whine if it never came on.
809 if (sc->chipset == CB_TOPIC95) {
810 pause("cbb95B", hz / 10);
811 } else if (sane <= 0) {
812 device_printf(sc->dev, "power timeout, doom?\n");
817 * After the power is good, we can turn off the power interrupt.
818 * However, the PC Card standard says that we must delay turning the
819 * CD bit back on for a bit to allow for bouncyness on power down
820 * (recall that we don't wait above for a power down, since we don't
821 * get an interrupt for that). We're called either from the suspend
822 * code in which case we don't want to turn card change on again, or
823 * we're called from the card insertion code, in which case the cbb
824 * thread will turn it on for us before it waits to be woken by a
827 * NB: Topic95B doesn't set the power cycle bit. we assume that
828 * both it and the TOPIC95 behave the same.
830 cbb_clrb(sc, CBB_SOCKET_MASK, CBB_SOCKET_MASK_POWER);
831 status = cbb_get(sc, CBB_SOCKET_STATE);
832 if (on && sc->chipset != CB_TOPIC95) {
833 if ((status & CBB_STATE_POWER_CYCLE) == 0)
834 device_printf(sc->dev, "Power not on?\n");
836 if (status & CBB_STATE_BAD_VCC_REQ) {
837 device_printf(sc->dev, "Bad Vcc requested\n");
839 * Turn off the power, and try again. Retrigger other
840 * active interrupts via force register. From NetBSD
841 * PR 36652, coded by me to description there.
843 sock_ctrl &= ~CBB_SOCKET_CTRL_VCCMASK;
844 sock_ctrl &= ~CBB_SOCKET_CTRL_VPPMASK;
845 cbb_set(sc, CBB_SOCKET_CONTROL, sock_ctrl);
846 status &= ~CBB_STATE_BAD_VCC_REQ;
847 status &= ~CBB_STATE_DATA_LOST;
848 status |= CBB_FORCE_CV_TEST;
849 cbb_set(sc, CBB_SOCKET_FORCE, status);
852 if (sc->chipset == CB_TOPIC97) {
853 reg_ctrl = pci_read_config(sc->dev, TOPIC_REG_CTRL, 4);
854 reg_ctrl &= ~TOPIC97_REG_CTRL_TESTMODE;
856 reg_ctrl |= TOPIC97_REG_CTRL_CLKRUN_ENA;
858 reg_ctrl &= ~TOPIC97_REG_CTRL_CLKRUN_ENA;
859 pci_write_config(sc->dev, TOPIC_REG_CTRL, reg_ctrl, 4);
861 PCI_MASK_CONFIG(brdev, CBBR_BRIDGECTRL,
862 & ~CBBM_BRIDGECTRL_INTR_IREQ_ISA_EN, 2);
865 if (volts != 0 && sc->chipset == CB_O2MICRO)
866 cbb_o2micro_power_hack2(sc, reg);
871 cbb_current_voltage(device_t brdev)
873 struct cbb_softc *sc = device_get_softc(brdev);
876 ctrl = cbb_get(sc, CBB_SOCKET_CONTROL);
877 switch (ctrl & CBB_SOCKET_CTRL_VCCMASK) {
878 case CBB_SOCKET_CTRL_VCC_5V:
880 case CBB_SOCKET_CTRL_VCC_3V:
882 case CBB_SOCKET_CTRL_VCC_XV:
884 case CBB_SOCKET_CTRL_VCC_YV:
891 * detect the voltage for the card, and set it. Since the power
892 * used is the square of the voltage, lower voltages is a big win
893 * and what Windows does (and what Microsoft prefers). The MS paper
894 * also talks about preferring the CIS entry as well, but that has
895 * to be done elsewhere. We also optimize power sequencing here
896 * and don't change things if we're already powered up at a supported
899 * In addition, we power up with OE disabled. We'll set it later
900 * in the power up sequence.
903 cbb_do_power(device_t brdev)
905 struct cbb_softc *sc = device_get_softc(brdev);
906 uint32_t voltage, curpwr;
909 /* Don't enable OE (output enable) until power stable */
910 exca_clrb(&sc->exca[0], EXCA_PWRCTL, EXCA_PWRCTL_OE);
912 voltage = cbb_detect_voltage(brdev);
913 curpwr = cbb_current_voltage(brdev);
914 status = cbb_get(sc, CBB_SOCKET_STATE);
915 if ((status & CBB_STATE_POWER_CYCLE) && (voltage & curpwr))
917 /* Prefer lowest voltage supported */
918 cbb_power(brdev, CARD_OFF);
919 if (voltage & CARD_YV_CARD)
920 cbb_power(brdev, CARD_VCC(YV));
921 else if (voltage & CARD_XV_CARD)
922 cbb_power(brdev, CARD_VCC(XV));
923 else if (voltage & CARD_3V_CARD)
924 cbb_power(brdev, CARD_VCC(3));
925 else if (voltage & CARD_5V_CARD)
926 cbb_power(brdev, CARD_VCC(5));
928 device_printf(brdev, "Unknown card voltage\n");
934 /************************************************************************/
935 /* CardBus power functions */
936 /************************************************************************/
939 cbb_cardbus_reset_power(device_t brdev, device_t child, int on)
941 struct cbb_softc *sc = device_get_softc(brdev);
946 * Asserting reset for 20ms is necessary for most bridges. For some
947 * reason, the Ricoh RF5C47x bridges need it asserted for 400ms. The
948 * root cause of this is unknown, and NetBSD does the same thing.
950 delay = sc->chipset == CB_RF5C47X ? 400 : 20;
951 PCI_MASK_CONFIG(brdev, CBBR_BRIDGECTRL, |CBBM_BRIDGECTRL_RESET, 2);
952 pause("cbbP3", hz * delay / 1000);
955 * If a card exists and we're turning it on, take it out of reset.
956 * After clearing reset, wait up to 1.1s for the first configuration
957 * register (vendor/product) configuration register of device 0.0 to
958 * become != 0xffffffff. The PCMCIA PC Card Host System Specification
959 * says that when powering up the card, the PCI Spec v2.1 must be
960 * followed. In PCI spec v2.2 Table 4-6, Trhfa (Reset High to first
961 * Config Access) is at most 2^25 clocks, or just over 1s. Section
962 * 2.2.1 states any card not ready to participate in bus transactions
963 * must tristate its outputs. Therefore, any access to its
964 * configuration registers must be ignored. In that state, the config
965 * reg will read 0xffffffff. Section 6.2.1 states a vendor id of
966 * 0xffff is invalid, so this can never match a real card. Print a
967 * warning if it never returns a real id. The PCMCIA PC Card
968 * Electrical Spec Section 5.2.7.1 implies only device 0 is present on
969 * a cardbus bus, so that's the only register we check here.
971 if (on && CBB_CARD_PRESENT(cbb_get(sc, CBB_SOCKET_STATE))) {
974 PCI_MASK_CONFIG(brdev, CBBR_BRIDGECTRL,
975 &~CBBM_BRIDGECTRL_RESET, 2);
976 b = pcib_get_bus(child);
979 pause("cbbP4", hz * 2 / 100);
980 } while (PCIB_READ_CONFIG(brdev, b, 0, 0, PCIR_DEVVENDOR, 4) ==
981 0xfffffffful && --count >= 0);
983 device_printf(brdev, "Warning: Bus reset timeout\n");
988 cbb_cardbus_power_enable_socket(device_t brdev, device_t child)
990 struct cbb_softc *sc = device_get_softc(brdev);
993 if (!CBB_CARD_PRESENT(cbb_get(sc, CBB_SOCKET_STATE)))
996 err = cbb_do_power(brdev);
999 cbb_cardbus_reset_power(brdev, child, 1);
1004 cbb_cardbus_power_disable_socket(device_t brdev, device_t child)
1006 cbb_power(brdev, CARD_OFF);
1007 cbb_cardbus_reset_power(brdev, child, 0);
1011 /************************************************************************/
1012 /* CardBus Resource */
1013 /************************************************************************/
1016 cbb_cardbus_io_open(device_t brdev, int win, uint32_t start, uint32_t end)
1021 if ((win < 0) || (win > 1)) {
1023 "cbb_cardbus_io_open: window out of range %d\n", win));
1027 basereg = win * 8 + CBBR_IOBASE0;
1028 limitreg = win * 8 + CBBR_IOLIMIT0;
1030 pci_write_config(brdev, basereg, start, 4);
1031 pci_write_config(brdev, limitreg, end, 4);
1036 cbb_cardbus_mem_open(device_t brdev, int win, uint32_t start, uint32_t end)
1041 if ((win < 0) || (win > 1)) {
1043 "cbb_cardbus_mem_open: window out of range %d\n", win));
1047 basereg = win * 8 + CBBR_MEMBASE0;
1048 limitreg = win * 8 + CBBR_MEMLIMIT0;
1050 pci_write_config(brdev, basereg, start, 4);
1051 pci_write_config(brdev, limitreg, end, 4);
1055 #define START_NONE 0xffffffff
1059 cbb_cardbus_auto_open(struct cbb_softc *sc, int type)
1063 struct cbb_reslist *rle;
1067 starts[0] = starts[1] = START_NONE;
1068 ends[0] = ends[1] = END_NONE;
1070 if (type == SYS_RES_MEMORY)
1071 align = CBB_MEMALIGN;
1072 else if (type == SYS_RES_IOPORT)
1073 align = CBB_IOALIGN;
1077 SLIST_FOREACH(rle, &sc->rl, link) {
1078 if (rle->type != type)
1080 if (rle->res == NULL)
1082 if (!(rman_get_flags(rle->res) & RF_ACTIVE))
1084 if (rman_get_flags(rle->res) & RF_PREFETCHABLE)
1088 if (rman_get_start(rle->res) < starts[i])
1089 starts[i] = rman_get_start(rle->res);
1090 if (rman_get_end(rle->res) > ends[i])
1091 ends[i] = rman_get_end(rle->res);
1093 for (i = 0; i < 2; i++) {
1094 if (starts[i] == START_NONE)
1096 starts[i] &= ~(align - 1);
1097 ends[i] = ((ends[i] + align - 1) & ~(align - 1)) - 1;
1099 if (starts[0] != START_NONE && starts[1] != START_NONE) {
1100 if (starts[0] < starts[1]) {
1101 if (ends[0] > starts[1]) {
1102 device_printf(sc->dev, "Overlapping ranges"
1103 " for prefetch and non-prefetch memory\n");
1107 if (ends[1] > starts[0]) {
1108 device_printf(sc->dev, "Overlapping ranges"
1109 " for prefetch and non-prefetch memory\n");
1115 if (type == SYS_RES_MEMORY) {
1116 cbb_cardbus_mem_open(sc->dev, 0, starts[0], ends[0]);
1117 cbb_cardbus_mem_open(sc->dev, 1, starts[1], ends[1]);
1118 reg = pci_read_config(sc->dev, CBBR_BRIDGECTRL, 2);
1119 reg &= ~(CBBM_BRIDGECTRL_PREFETCH_0 |
1120 CBBM_BRIDGECTRL_PREFETCH_1);
1121 if (starts[1] != START_NONE)
1122 reg |= CBBM_BRIDGECTRL_PREFETCH_1;
1123 pci_write_config(sc->dev, CBBR_BRIDGECTRL, reg, 2);
1125 device_printf(sc->dev, "Opening memory:\n");
1126 if (starts[0] != START_NONE)
1127 device_printf(sc->dev, "Normal: %#x-%#x\n",
1128 starts[0], ends[0]);
1129 if (starts[1] != START_NONE)
1130 device_printf(sc->dev, "Prefetch: %#x-%#x\n",
1131 starts[1], ends[1]);
1133 } else if (type == SYS_RES_IOPORT) {
1134 cbb_cardbus_io_open(sc->dev, 0, starts[0], ends[0]);
1135 cbb_cardbus_io_open(sc->dev, 1, starts[1], ends[1]);
1136 if (bootverbose && starts[0] != START_NONE)
1137 device_printf(sc->dev, "Opening I/O: %#x-%#x\n",
1138 starts[0], ends[0]);
1143 cbb_cardbus_activate_resource(device_t brdev, device_t child, int type,
1144 int rid, struct resource *res)
1148 ret = BUS_ACTIVATE_RESOURCE(device_get_parent(brdev), child,
1152 cbb_cardbus_auto_open(device_get_softc(brdev), type);
1157 cbb_cardbus_deactivate_resource(device_t brdev, device_t child, int type,
1158 int rid, struct resource *res)
1162 ret = BUS_DEACTIVATE_RESOURCE(device_get_parent(brdev), child,
1166 cbb_cardbus_auto_open(device_get_softc(brdev), type);
1170 static struct resource *
1171 cbb_cardbus_alloc_resource(device_t brdev, device_t child, int type,
1172 int *rid, u_long start, u_long end, u_long count, u_int flags)
1174 struct cbb_softc *sc = device_get_softc(brdev);
1176 struct resource *res;
1181 tmp = rman_get_start(sc->irq_res);
1182 if (start > tmp || end < tmp || count != 1) {
1183 device_printf(child, "requested interrupt %ld-%ld,"
1184 "count = %ld not supported by cbb\n",
1189 flags |= RF_SHAREABLE;
1191 case SYS_RES_IOPORT:
1192 if (start <= cbb_start_32_io)
1193 start = cbb_start_32_io;
1196 if (count > (1 << RF_ALIGNMENT(flags)))
1197 flags = (flags & ~RF_ALIGNMENT_MASK) |
1198 rman_make_alignment_flags(count);
1200 case SYS_RES_MEMORY:
1201 if (start <= cbb_start_mem)
1202 start = cbb_start_mem;
1205 if (count < CBB_MEMALIGN)
1206 align = CBB_MEMALIGN;
1209 if (align > (1 << RF_ALIGNMENT(flags)))
1210 flags = (flags & ~RF_ALIGNMENT_MASK) |
1211 rman_make_alignment_flags(align);
1214 res = BUS_ALLOC_RESOURCE(device_get_parent(brdev), child, type, rid,
1215 start, end, count, flags & ~RF_ACTIVE);
1217 printf("cbb alloc res fail type %d rid %x\n", type, *rid);
1220 cbb_insert_res(sc, res, type, *rid);
1221 if (flags & RF_ACTIVE)
1222 if (bus_activate_resource(child, type, *rid, res) != 0) {
1223 bus_release_resource(child, type, *rid, res);
1231 cbb_cardbus_release_resource(device_t brdev, device_t child, int type,
1232 int rid, struct resource *res)
1234 struct cbb_softc *sc = device_get_softc(brdev);
1237 if (rman_get_flags(res) & RF_ACTIVE) {
1238 error = bus_deactivate_resource(child, type, rid, res);
1242 cbb_remove_res(sc, res);
1243 return (BUS_RELEASE_RESOURCE(device_get_parent(brdev), child,
1247 /************************************************************************/
1248 /* PC Card Power Functions */
1249 /************************************************************************/
1252 cbb_pcic_power_enable_socket(device_t brdev, device_t child)
1254 struct cbb_softc *sc = device_get_softc(brdev);
1257 DPRINTF(("cbb_pcic_socket_enable:\n"));
1259 /* power down/up the socket to reset */
1260 err = cbb_do_power(brdev);
1263 exca_reset(&sc->exca[0], child);
1269 cbb_pcic_power_disable_socket(device_t brdev, device_t child)
1271 struct cbb_softc *sc = device_get_softc(brdev);
1273 DPRINTF(("cbb_pcic_socket_disable\n"));
1275 /* Turn off the card's interrupt and leave it in reset, wait 10ms */
1276 exca_putb(&sc->exca[0], EXCA_INTR, 0);
1277 pause("cbbP1", hz / 100);
1279 /* power down the socket */
1280 cbb_power(brdev, CARD_OFF);
1281 exca_putb(&sc->exca[0], EXCA_PWRCTL, 0);
1283 /* wait 300ms until power fails (Tpf). */
1284 pause("cbbP2", hz * 300 / 1000);
1286 /* enable CSC interrupts */
1287 exca_putb(&sc->exca[0], EXCA_INTR, EXCA_INTR_ENABLE);
1291 /************************************************************************/
1293 /************************************************************************/
1296 cbb_power_enable_socket(device_t brdev, device_t child)
1298 struct cbb_softc *sc = device_get_softc(brdev);
1300 if (sc->flags & CBB_16BIT_CARD)
1301 return (cbb_pcic_power_enable_socket(brdev, child));
1302 return (cbb_cardbus_power_enable_socket(brdev, child));
1306 cbb_power_disable_socket(device_t brdev, device_t child)
1308 struct cbb_softc *sc = device_get_softc(brdev);
1309 if (sc->flags & CBB_16BIT_CARD)
1310 return (cbb_pcic_power_disable_socket(brdev, child));
1311 return (cbb_cardbus_power_disable_socket(brdev, child));
1315 cbb_pcic_activate_resource(device_t brdev, device_t child, int type, int rid,
1316 struct resource *res)
1318 struct cbb_softc *sc = device_get_softc(brdev);
1319 return (exca_activate_resource(&sc->exca[0], child, type, rid, res));
1323 cbb_pcic_deactivate_resource(device_t brdev, device_t child, int type,
1324 int rid, struct resource *res)
1326 struct cbb_softc *sc = device_get_softc(brdev);
1327 return (exca_deactivate_resource(&sc->exca[0], child, type, rid, res));
1330 static struct resource *
1331 cbb_pcic_alloc_resource(device_t brdev, device_t child, int type, int *rid,
1332 u_long start, u_long end, u_long count, u_int flags)
1334 struct resource *res = NULL;
1335 struct cbb_softc *sc = device_get_softc(brdev);
1340 case SYS_RES_MEMORY:
1341 if (start < cbb_start_mem)
1342 start = cbb_start_mem;
1345 if (count < CBB_MEMALIGN)
1346 align = CBB_MEMALIGN;
1349 if (align > (1 << RF_ALIGNMENT(flags)))
1350 flags = (flags & ~RF_ALIGNMENT_MASK) |
1351 rman_make_alignment_flags(align);
1353 case SYS_RES_IOPORT:
1354 if (start < cbb_start_16_io)
1355 start = cbb_start_16_io;
1360 tmp = rman_get_start(sc->irq_res);
1361 if (start > tmp || end < tmp || count != 1) {
1362 device_printf(child, "requested interrupt %ld-%ld,"
1363 "count = %ld not supported by cbb\n",
1367 flags |= RF_SHAREABLE;
1368 start = end = rman_get_start(sc->irq_res);
1371 res = BUS_ALLOC_RESOURCE(device_get_parent(brdev), child, type, rid,
1372 start, end, count, flags & ~RF_ACTIVE);
1375 cbb_insert_res(sc, res, type, *rid);
1376 if (flags & RF_ACTIVE) {
1377 if (bus_activate_resource(child, type, *rid, res) != 0) {
1378 bus_release_resource(child, type, *rid, res);
1387 cbb_pcic_release_resource(device_t brdev, device_t child, int type,
1388 int rid, struct resource *res)
1390 struct cbb_softc *sc = device_get_softc(brdev);
1393 if (rman_get_flags(res) & RF_ACTIVE) {
1394 error = bus_deactivate_resource(child, type, rid, res);
1398 cbb_remove_res(sc, res);
1399 return (BUS_RELEASE_RESOURCE(device_get_parent(brdev), child,
1403 /************************************************************************/
1404 /* PC Card methods */
1405 /************************************************************************/
1408 cbb_pcic_set_res_flags(device_t brdev, device_t child, int type, int rid,
1411 struct cbb_softc *sc = device_get_softc(brdev);
1412 struct resource *res;
1414 if (type != SYS_RES_MEMORY)
1416 res = cbb_find_res(sc, type, rid);
1418 device_printf(brdev,
1419 "set_res_flags: specified rid not found\n");
1422 return (exca_mem_set_flags(&sc->exca[0], res, flags));
1426 cbb_pcic_set_memory_offset(device_t brdev, device_t child, int rid,
1427 uint32_t cardaddr, uint32_t *deltap)
1429 struct cbb_softc *sc = device_get_softc(brdev);
1430 struct resource *res;
1432 res = cbb_find_res(sc, SYS_RES_MEMORY, rid);
1434 device_printf(brdev,
1435 "set_memory_offset: specified rid not found\n");
1438 return (exca_mem_set_offset(&sc->exca[0], res, cardaddr, deltap));
1441 /************************************************************************/
1443 /************************************************************************/
1447 cbb_activate_resource(device_t brdev, device_t child, int type, int rid,
1450 struct cbb_softc *sc = device_get_softc(brdev);
1452 if (sc->flags & CBB_16BIT_CARD)
1453 return (cbb_pcic_activate_resource(brdev, child, type, rid, r));
1455 return (cbb_cardbus_activate_resource(brdev, child, type, rid,
1460 cbb_deactivate_resource(device_t brdev, device_t child, int type,
1461 int rid, struct resource *r)
1463 struct cbb_softc *sc = device_get_softc(brdev);
1465 if (sc->flags & CBB_16BIT_CARD)
1466 return (cbb_pcic_deactivate_resource(brdev, child, type,
1469 return (cbb_cardbus_deactivate_resource(brdev, child, type,
1474 cbb_alloc_resource(device_t brdev, device_t child, int type, int *rid,
1475 u_long start, u_long end, u_long count, u_int flags)
1477 struct cbb_softc *sc = device_get_softc(brdev);
1479 if (sc->flags & CBB_16BIT_CARD)
1480 return (cbb_pcic_alloc_resource(brdev, child, type, rid,
1481 start, end, count, flags));
1483 return (cbb_cardbus_alloc_resource(brdev, child, type, rid,
1484 start, end, count, flags));
1488 cbb_release_resource(device_t brdev, device_t child, int type, int rid,
1491 struct cbb_softc *sc = device_get_softc(brdev);
1493 if (sc->flags & CBB_16BIT_CARD)
1494 return (cbb_pcic_release_resource(brdev, child, type,
1497 return (cbb_cardbus_release_resource(brdev, child, type,
1502 cbb_read_ivar(device_t brdev, device_t child, int which, uintptr_t *result)
1504 struct cbb_softc *sc = device_get_softc(brdev);
1507 case PCIB_IVAR_DOMAIN:
1508 *result = sc->domain;
1511 *result = sc->secbus;
1518 cbb_write_ivar(device_t brdev, device_t child, int which, uintptr_t value)
1520 struct cbb_softc *sc = device_get_softc(brdev);
1523 case PCIB_IVAR_DOMAIN:
1533 cbb_suspend(device_t self)
1536 struct cbb_softc *sc = device_get_softc(self);
1538 error = bus_generic_suspend(self);
1541 cbb_set(sc, CBB_SOCKET_MASK, 0); /* Quiet hardware */
1542 sc->cardok = 0; /* Card is bogus now */
1547 cbb_resume(device_t self)
1550 struct cbb_softc *sc = (struct cbb_softc *)device_get_softc(self);
1554 * Some BIOSes will not save the BARs for the pci chips, so we
1555 * must do it ourselves. If the BAR is reset to 0 for an I/O
1556 * device, it will read back as 0x1, so no explicit test for
1557 * memory devices are needed.
1559 * Note: The PCI bus code should do this automatically for us on
1560 * suspend/resume, but until it does, we have to cope.
1562 pci_write_config(self, CBBR_SOCKBASE, rman_get_start(sc->base_res), 4);
1563 DEVPRINTF((self, "PCI Memory allocated: %08lx\n",
1564 rman_get_start(sc->base_res)));
1568 /* reset interrupt -- Do we really need to do this? */
1569 tmp = cbb_get(sc, CBB_SOCKET_EVENT);
1570 cbb_set(sc, CBB_SOCKET_EVENT, tmp);
1572 /* CSC Interrupt: Card detect interrupt on */
1573 cbb_setb(sc, CBB_SOCKET_MASK, CBB_SOCKET_MASK_CD);
1575 /* Signal the thread to wakeup. */
1576 wakeup(&sc->intrhand);
1578 error = bus_generic_resume(self);
1584 cbb_child_present(device_t parent, device_t child)
1586 struct cbb_softc *sc = (struct cbb_softc *)device_get_softc(parent);
1589 sockstate = cbb_get(sc, CBB_SOCKET_STATE);
1590 return (CBB_CARD_PRESENT(sockstate) && sc->cardok);