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 static 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_INT(_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 * We need to act as a power sequencer on startup. Delay 2s/channel
465 * to ensure the other channels have had a chance to come up. We likely
466 * should add a lock that's shared on a per-slot basis so that only
467 * one power event can happen per slot at a time.
469 pause("cbbstart", hz * device_get_unit(sc->dev) * 2);
471 sc->flags |= CBB_KTHREAD_RUNNING;
472 while ((sc->flags & CBB_KTHREAD_DONE) == 0) {
473 mtx_unlock(&sc->mtx);
475 * We take out Giant here because we need it deep,
476 * down in the bowels of the vm system for mapping the
477 * memory we need to read the CIS. In addition, since
478 * we are adding/deleting devices from the dev tree,
479 * and that code isn't MP safe, we have to hold Giant.
482 status = cbb_get(sc, CBB_SOCKET_STATE);
483 DPRINTF(("Status is 0x%x\n", status));
484 if (!CBB_CARD_PRESENT(status)) {
485 not_a_card = 0; /* We know card type */
487 } else if (status & CBB_STATE_NOT_A_CARD) {
489 * Up to 10 times, try to rescan the card when we see
490 * NOT_A_CARD. 10 is somehwat arbitrary. When this
491 * pathology hits, there's a ~40% chance each try will
492 * fail. 10 tries takes about 5s and results in a
493 * 99.99% certainty of the results.
495 if (not_a_card++ < 10) {
497 "Not a card bit set, rescanning\n"));
498 cbb_setb(sc, CBB_SOCKET_FORCE, CBB_FORCE_CV_TEST);
500 device_printf(sc->dev,
501 "Can't determine card type\n");
504 not_a_card = 0; /* We know card type */
510 * First time through we need to tell mountroot that we're
513 if (sc->sc_root_token) {
514 root_mount_rel(sc->sc_root_token);
515 sc->sc_root_token = NULL;
519 * Wait until it has been 250ms since the last time we
520 * get an interrupt. We handle the rest of the interrupt
521 * at the top of the loop. Although we clear the bit in the
522 * ISR, we signal sc->cv from the detach path after we've
523 * set the CBB_KTHREAD_DONE bit, so we can't do a simple
526 * In our ISR, we turn off the card changed interrupt. Turn
527 * them back on here before we wait for them to happen. We
528 * turn them on/off so that we can tolerate a large latency
529 * between the time we signal cbb_event_thread and it gets
533 cbb_setb(sc, CBB_SOCKET_MASK, CBB_SOCKET_MASK_CD | CBB_SOCKET_MASK_CSTS);
534 msleep(&sc->intrhand, &sc->mtx, 0, "-", 0);
536 while (err != EWOULDBLOCK &&
537 (sc->flags & CBB_KTHREAD_DONE) == 0)
538 err = msleep(&sc->intrhand, &sc->mtx, 0, "-", hz / 5);
540 DEVPRINTF((sc->dev, "Thread terminating\n"));
541 sc->flags &= ~CBB_KTHREAD_RUNNING;
542 mtx_unlock(&sc->mtx);
546 /************************************************************************/
548 /************************************************************************/
551 cbb_insert(struct cbb_softc *sc)
553 uint32_t sockevent, sockstate;
555 sockevent = cbb_get(sc, CBB_SOCKET_EVENT);
556 sockstate = cbb_get(sc, CBB_SOCKET_STATE);
558 DEVPRINTF((sc->dev, "card inserted: event=0x%08x, state=%08x\n",
559 sockevent, sockstate));
561 if (sockstate & CBB_STATE_R2_CARD) {
562 if (device_is_attached(sc->exca[0].pccarddev)) {
563 sc->flags |= CBB_16BIT_CARD;
564 exca_insert(&sc->exca[0]);
566 device_printf(sc->dev,
567 "16-bit card inserted, but no pccard bus.\n");
569 } else if (sockstate & CBB_STATE_CB_CARD) {
570 if (device_is_attached(sc->cbdev)) {
571 sc->flags &= ~CBB_16BIT_CARD;
572 CARD_ATTACH_CARD(sc->cbdev);
574 device_printf(sc->dev,
575 "CardBus card inserted, but no cardbus bus.\n");
579 * We should power the card down, and try again a couple of
580 * times if this happens. XXX
582 device_printf(sc->dev, "Unsupported card type detected\n");
587 cbb_removal(struct cbb_softc *sc)
590 if (sc->flags & CBB_16BIT_CARD) {
591 exca_removal(&sc->exca[0]);
593 if (device_is_attached(sc->cbdev))
594 CARD_DETACH_CARD(sc->cbdev);
599 /************************************************************************/
600 /* Interrupt Handler */
601 /************************************************************************/
604 cbb_func_filt(void *arg)
606 struct cbb_intrhand *ih = (struct cbb_intrhand *)arg;
607 struct cbb_softc *sc = ih->sc;
610 * Make sure that the card is really there.
613 return (FILTER_STRAY);
614 if (!CBB_CARD_PRESENT(cbb_get(sc, CBB_SOCKET_STATE))) {
616 return (FILTER_HANDLED);
620 * nb: don't have to check for giant or not, since that's done in the
621 * ISR dispatch and one can't hold Giant in a filter anyway...
623 return ((*ih->filt)(ih->arg));
627 cbb_func_intr(void *arg)
629 struct cbb_intrhand *ih = (struct cbb_intrhand *)arg;
630 struct cbb_softc *sc = ih->sc;
633 * While this check may seem redundant, it helps close a race
634 * condition. If the card is ejected after the filter runs, but
635 * before this ISR can be scheduled, then we need to do the same
636 * filtering to prevent the card's ISR from being called. One could
637 * argue that the card's ISR should be able to cope, but experience
638 * has shown they can't always. This mitigates the problem by making
639 * the race quite a bit smaller. Properly written client ISRs should
640 * cope with the card going away in the middle of the ISR. We assume
641 * that drivers that are sophisticated enough to use filters don't
642 * need our protection. This also allows us to ensure they *ARE*
643 * called if their filter said they needed to be called.
645 if (ih->filt == NULL) {
648 if (!CBB_CARD_PRESENT(cbb_get(sc, CBB_SOCKET_STATE))) {
655 * Call the registered ithread interrupt handler. This entire routine
656 * will be called with Giant if this isn't an MP safe driver, or not
657 * if it is. Either way, we don't have to worry.
662 /************************************************************************/
663 /* Generic Power functions */
664 /************************************************************************/
667 cbb_detect_voltage(device_t brdev)
669 struct cbb_softc *sc = device_get_softc(brdev);
671 uint32_t vol = CARD_UKN_CARD;
673 psr = cbb_get(sc, CBB_SOCKET_STATE);
675 if (psr & CBB_STATE_5VCARD && psr & CBB_STATE_5VSOCK)
677 if (psr & CBB_STATE_3VCARD && psr & CBB_STATE_3VSOCK)
679 if (psr & CBB_STATE_XVCARD && psr & CBB_STATE_XVSOCK)
681 if (psr & CBB_STATE_YVCARD && psr & CBB_STATE_YVSOCK)
688 cbb_o2micro_power_hack(struct cbb_softc *sc)
693 * Issue #2: INT# not qualified with IRQ Routing Bit. An
694 * unexpected PCI INT# may be generated during PC Card
695 * initialization even with the IRQ Routing Bit Set with some
698 * This is a two part issue. The first part is that some of
699 * our older controllers have an issue in which the slot's PCI
700 * INT# is NOT qualified by the IRQ routing bit (PCI reg. 3Eh
701 * bit 7). Regardless of the IRQ routing bit, if NO ISA IRQ
702 * is selected (ExCA register 03h bits 3:0, of the slot, are
703 * cleared) we will generate INT# if IREQ# is asserted. The
704 * second part is because some PC Cards prematurally assert
705 * IREQ# before the ExCA registers are fully programmed. This
706 * in turn asserts INT# because ExCA register 03h bits 3:0
707 * (ISA IRQ Select) are not yet programmed.
709 * The fix for this issue, which will work for any controller
710 * (old or new), is to set ExCA register 03h bits 3:0 = 0001b
711 * (select IRQ1), of the slot, before turning on slot power.
712 * Selecting IRQ1 will result in INT# NOT being asserted
713 * (because IRQ1 is selected), and IRQ1 won't be asserted
714 * because our controllers don't generate IRQ1.
716 * Other, non O2Micro controllers will generate irq 1 in some
717 * situations, so we can't do this hack for everybody. Reports of
718 * keyboard controller's interrupts being suppressed occurred when
721 reg = exca_getb(&sc->exca[0], EXCA_INTR);
722 exca_putb(&sc->exca[0], EXCA_INTR, (reg & 0xf0) | 1);
727 * Restore the damage that cbb_o2micro_power_hack does to EXCA_INTR so
728 * we don't have an interrupt storm on power on. This has the efect of
729 * disabling card status change interrupts for the duration of poweron.
732 cbb_o2micro_power_hack2(struct cbb_softc *sc, uint8_t reg)
734 exca_putb(&sc->exca[0], EXCA_INTR, reg);
738 cbb_power(device_t brdev, int volts)
740 uint32_t status, sock_ctrl, reg_ctrl, mask;
741 struct cbb_softc *sc = device_get_softc(brdev);
747 sock_ctrl = cbb_get(sc, CBB_SOCKET_CONTROL);
749 sock_ctrl &= ~CBB_SOCKET_CTRL_VCCMASK;
750 switch (volts & CARD_VCCMASK) {
752 sock_ctrl |= CBB_SOCKET_CTRL_VCC_5V;
756 sock_ctrl |= CBB_SOCKET_CTRL_VCC_3V;
760 sock_ctrl |= CBB_SOCKET_CTRL_VCC_XV;
764 sock_ctrl |= CBB_SOCKET_CTRL_VCC_YV;
770 return (0); /* power NEVER changed */
774 sock_ctrl &= ~CBB_SOCKET_CTRL_VPPMASK;
775 sock_ctrl |= ((sock_ctrl >> 4) & 0x07);
777 if (cbb_get(sc, CBB_SOCKET_CONTROL) == sock_ctrl)
778 return (1); /* no change necessary */
779 DEVPRINTF((sc->dev, "cbb_power: %dV\n", volts));
780 if (volts != 0 && sc->chipset == CB_O2MICRO)
781 reg = cbb_o2micro_power_hack(sc);
784 * We have to mask the card change detect interrupt while we're
785 * messing with the power. It is allowed to bounce while we're
786 * messing with power as things settle down. In addition, we mask off
787 * the card's function interrupt by routing it via the ISA bus. This
788 * bit generally only affects 16-bit cards. Some bridges allow one to
789 * set another bit to have it also affect 32-bit cards. Since 32-bit
790 * cards are required to be better behaved, we don't bother to get
791 * into those bridge specific features.
793 * XXX I wonder if we need to enable the READY bit interrupt in the
794 * EXCA CSC register for 16-bit cards, and disable the CD bit?
796 mask = cbb_get(sc, CBB_SOCKET_MASK);
797 mask |= CBB_SOCKET_MASK_POWER;
798 mask &= ~CBB_SOCKET_MASK_CD;
799 cbb_set(sc, CBB_SOCKET_MASK, mask);
800 PCI_MASK_CONFIG(brdev, CBBR_BRIDGECTRL,
801 |CBBM_BRIDGECTRL_INTR_IREQ_ISA_EN, 2);
802 cbb_set(sc, CBB_SOCKET_CONTROL, sock_ctrl);
807 * We have a shortish timeout of 500ms here. Some bridges do
808 * not generate a POWER_CYCLE event for 16-bit cards. In
809 * those cases, we have to cope the best we can, and having
810 * only a short delay is better than the alternatives. Others
811 * raise the power cycle a smidge before it is really ready.
812 * We deal with those below.
815 while (!(cbb_get(sc, CBB_SOCKET_STATE) & CBB_STATE_POWER_CYCLE) &&
816 cnt == sc->powerintr && sane-- > 0)
817 msleep(&sc->powerintr, &sc->mtx, 0, "-", hz / 20);
818 mtx_unlock(&sc->mtx);
821 * Relax for 100ms. Some bridges appear to assert this signal
822 * right away, but before the card has stabilized. Other
823 * cards need need more time to cope up reliabily.
824 * Experiments with troublesome setups show this to be a
825 * "cheap" way to enhance reliabilty. We need not do this for
826 * "off" since we don't touch the card after we turn it off.
828 pause("cbbPwr", min(hz / 10, 1));
831 * The TOPIC95B requires a little bit extra time to get its
832 * act together, so delay for an additional 100ms. Also as
833 * documented below, it doesn't seem to set the POWER_CYCLE
834 * bit, so don't whine if it never came on.
836 if (sc->chipset == CB_TOPIC95)
837 pause("cbb95B", hz / 10);
839 device_printf(sc->dev, "power timeout, doom?\n");
843 * After the power is good, we can turn off the power interrupt.
844 * However, the PC Card standard says that we must delay turning the
845 * CD bit back on for a bit to allow for bouncyness on power down
846 * (recall that we don't wait above for a power down, since we don't
847 * get an interrupt for that). We're called either from the suspend
848 * code in which case we don't want to turn card change on again, or
849 * we're called from the card insertion code, in which case the cbb
850 * thread will turn it on for us before it waits to be woken by a
853 * NB: Topic95B doesn't set the power cycle bit. we assume that
854 * both it and the TOPIC95 behave the same.
856 cbb_clrb(sc, CBB_SOCKET_MASK, CBB_SOCKET_MASK_POWER);
857 status = cbb_get(sc, CBB_SOCKET_STATE);
858 if (on && sc->chipset != CB_TOPIC95) {
859 if ((status & CBB_STATE_POWER_CYCLE) == 0)
860 device_printf(sc->dev, "Power not on?\n");
862 if (status & CBB_STATE_BAD_VCC_REQ) {
863 device_printf(sc->dev, "Bad Vcc requested\n");
865 * Turn off the power, and try again. Retrigger other
866 * active interrupts via force register. From NetBSD
867 * PR 36652, coded by me to description there.
869 sock_ctrl &= ~CBB_SOCKET_CTRL_VCCMASK;
870 sock_ctrl &= ~CBB_SOCKET_CTRL_VPPMASK;
871 cbb_set(sc, CBB_SOCKET_CONTROL, sock_ctrl);
872 status &= ~CBB_STATE_BAD_VCC_REQ;
873 status &= ~CBB_STATE_DATA_LOST;
874 status |= CBB_FORCE_CV_TEST;
875 cbb_set(sc, CBB_SOCKET_FORCE, status);
878 if (sc->chipset == CB_TOPIC97) {
879 reg_ctrl = pci_read_config(sc->dev, TOPIC_REG_CTRL, 4);
880 reg_ctrl &= ~TOPIC97_REG_CTRL_TESTMODE;
882 reg_ctrl |= TOPIC97_REG_CTRL_CLKRUN_ENA;
884 reg_ctrl &= ~TOPIC97_REG_CTRL_CLKRUN_ENA;
885 pci_write_config(sc->dev, TOPIC_REG_CTRL, reg_ctrl, 4);
887 PCI_MASK_CONFIG(brdev, CBBR_BRIDGECTRL,
888 & ~CBBM_BRIDGECTRL_INTR_IREQ_ISA_EN, 2);
891 if (volts != 0 && sc->chipset == CB_O2MICRO)
892 cbb_o2micro_power_hack2(sc, reg);
897 cbb_current_voltage(device_t brdev)
899 struct cbb_softc *sc = device_get_softc(brdev);
902 ctrl = cbb_get(sc, CBB_SOCKET_CONTROL);
903 switch (ctrl & CBB_SOCKET_CTRL_VCCMASK) {
904 case CBB_SOCKET_CTRL_VCC_5V:
906 case CBB_SOCKET_CTRL_VCC_3V:
908 case CBB_SOCKET_CTRL_VCC_XV:
910 case CBB_SOCKET_CTRL_VCC_YV:
917 * detect the voltage for the card, and set it. Since the power
918 * used is the square of the voltage, lower voltages is a big win
919 * and what Windows does (and what Microsoft prefers). The MS paper
920 * also talks about preferring the CIS entry as well, but that has
921 * to be done elsewhere. We also optimize power sequencing here
922 * and don't change things if we're already powered up at a supported
925 * In addition, we power up with OE disabled. We'll set it later
926 * in the power up sequence.
929 cbb_do_power(device_t brdev)
931 struct cbb_softc *sc = device_get_softc(brdev);
932 uint32_t voltage, curpwr;
935 /* Don't enable OE (output enable) until power stable */
936 exca_clrb(&sc->exca[0], EXCA_PWRCTL, EXCA_PWRCTL_OE);
938 voltage = cbb_detect_voltage(brdev);
939 curpwr = cbb_current_voltage(brdev);
940 status = cbb_get(sc, CBB_SOCKET_STATE);
941 if ((status & CBB_STATE_POWER_CYCLE) && (voltage & curpwr))
943 /* Prefer lowest voltage supported */
944 cbb_power(brdev, CARD_OFF);
945 if (voltage & CARD_YV_CARD)
946 cbb_power(brdev, CARD_VCC(YV));
947 else if (voltage & CARD_XV_CARD)
948 cbb_power(brdev, CARD_VCC(XV));
949 else if (voltage & CARD_3V_CARD)
950 cbb_power(brdev, CARD_VCC(3));
951 else if (voltage & CARD_5V_CARD)
952 cbb_power(brdev, CARD_VCC(5));
954 device_printf(brdev, "Unknown card voltage\n");
960 /************************************************************************/
961 /* CardBus power functions */
962 /************************************************************************/
965 cbb_cardbus_reset_power(device_t brdev, device_t child, int on)
967 struct cbb_softc *sc = device_get_softc(brdev);
972 * Asserting reset for 20ms is necessary for most bridges. For some
973 * reason, the Ricoh RF5C47x bridges need it asserted for 400ms. The
974 * root cause of this is unknown, and NetBSD does the same thing.
976 delay = sc->chipset == CB_RF5C47X ? 400 : 20;
977 PCI_MASK_CONFIG(brdev, CBBR_BRIDGECTRL, |CBBM_BRIDGECTRL_RESET, 2);
978 pause("cbbP3", hz * delay / 1000);
981 * If a card exists and we're turning it on, take it out of reset.
982 * After clearing reset, wait up to 1.1s for the first configuration
983 * register (vendor/product) configuration register of device 0.0 to
984 * become != 0xffffffff. The PCMCIA PC Card Host System Specification
985 * says that when powering up the card, the PCI Spec v2.1 must be
986 * followed. In PCI spec v2.2 Table 4-6, Trhfa (Reset High to first
987 * Config Access) is at most 2^25 clocks, or just over 1s. Section
988 * 2.2.1 states any card not ready to participate in bus transactions
989 * must tristate its outputs. Therefore, any access to its
990 * configuration registers must be ignored. In that state, the config
991 * reg will read 0xffffffff. Section 6.2.1 states a vendor id of
992 * 0xffff is invalid, so this can never match a real card. Print a
993 * warning if it never returns a real id. The PCMCIA PC Card
994 * Electrical Spec Section 5.2.7.1 implies only device 0 is present on
995 * a cardbus bus, so that's the only register we check here.
997 if (on && CBB_CARD_PRESENT(cbb_get(sc, CBB_SOCKET_STATE))) {
1000 PCI_MASK_CONFIG(brdev, CBBR_BRIDGECTRL,
1001 &~CBBM_BRIDGECTRL_RESET, 2);
1002 b = pcib_get_bus(child);
1005 pause("cbbP4", hz * 2 / 100);
1006 } while (PCIB_READ_CONFIG(brdev, b, 0, 0, PCIR_DEVVENDOR, 4) ==
1007 0xfffffffful && --count >= 0);
1009 device_printf(brdev, "Warning: Bus reset timeout\n");
1014 cbb_cardbus_power_enable_socket(device_t brdev, device_t child)
1016 struct cbb_softc *sc = device_get_softc(brdev);
1019 if (!CBB_CARD_PRESENT(cbb_get(sc, CBB_SOCKET_STATE)))
1022 err = cbb_do_power(brdev);
1025 cbb_cardbus_reset_power(brdev, child, 1);
1030 cbb_cardbus_power_disable_socket(device_t brdev, device_t child)
1032 cbb_power(brdev, CARD_OFF);
1033 cbb_cardbus_reset_power(brdev, child, 0);
1037 /************************************************************************/
1038 /* CardBus Resource */
1039 /************************************************************************/
1042 cbb_cardbus_io_open(device_t brdev, int win, uint32_t start, uint32_t end)
1047 if ((win < 0) || (win > 1)) {
1049 "cbb_cardbus_io_open: window out of range %d\n", win));
1053 basereg = win * 8 + CBBR_IOBASE0;
1054 limitreg = win * 8 + CBBR_IOLIMIT0;
1056 pci_write_config(brdev, basereg, start, 4);
1057 pci_write_config(brdev, limitreg, end, 4);
1062 cbb_cardbus_mem_open(device_t brdev, int win, uint32_t start, uint32_t end)
1067 if ((win < 0) || (win > 1)) {
1069 "cbb_cardbus_mem_open: window out of range %d\n", win));
1073 basereg = win * 8 + CBBR_MEMBASE0;
1074 limitreg = win * 8 + CBBR_MEMLIMIT0;
1076 pci_write_config(brdev, basereg, start, 4);
1077 pci_write_config(brdev, limitreg, end, 4);
1081 #define START_NONE 0xffffffff
1085 cbb_cardbus_auto_open(struct cbb_softc *sc, int type)
1089 struct cbb_reslist *rle;
1093 starts[0] = starts[1] = START_NONE;
1094 ends[0] = ends[1] = END_NONE;
1096 if (type == SYS_RES_MEMORY)
1097 align = CBB_MEMALIGN;
1098 else if (type == SYS_RES_IOPORT)
1099 align = CBB_IOALIGN;
1103 SLIST_FOREACH(rle, &sc->rl, link) {
1104 if (rle->type != type)
1106 if (rle->res == NULL)
1108 if (!(rman_get_flags(rle->res) & RF_ACTIVE))
1110 if (rman_get_flags(rle->res) & RF_PREFETCHABLE)
1114 if (rman_get_start(rle->res) < starts[i])
1115 starts[i] = rman_get_start(rle->res);
1116 if (rman_get_end(rle->res) > ends[i])
1117 ends[i] = rman_get_end(rle->res);
1119 for (i = 0; i < 2; i++) {
1120 if (starts[i] == START_NONE)
1122 starts[i] &= ~(align - 1);
1123 ends[i] = ((ends[i] + align - 1) & ~(align - 1)) - 1;
1125 if (starts[0] != START_NONE && starts[1] != START_NONE) {
1126 if (starts[0] < starts[1]) {
1127 if (ends[0] > starts[1]) {
1128 device_printf(sc->dev, "Overlapping ranges"
1129 " for prefetch and non-prefetch memory\n");
1133 if (ends[1] > starts[0]) {
1134 device_printf(sc->dev, "Overlapping ranges"
1135 " for prefetch and non-prefetch memory\n");
1141 if (type == SYS_RES_MEMORY) {
1142 cbb_cardbus_mem_open(sc->dev, 0, starts[0], ends[0]);
1143 cbb_cardbus_mem_open(sc->dev, 1, starts[1], ends[1]);
1144 reg = pci_read_config(sc->dev, CBBR_BRIDGECTRL, 2);
1145 reg &= ~(CBBM_BRIDGECTRL_PREFETCH_0 |
1146 CBBM_BRIDGECTRL_PREFETCH_1);
1147 if (starts[1] != START_NONE)
1148 reg |= CBBM_BRIDGECTRL_PREFETCH_1;
1149 pci_write_config(sc->dev, CBBR_BRIDGECTRL, reg, 2);
1151 device_printf(sc->dev, "Opening memory:\n");
1152 if (starts[0] != START_NONE)
1153 device_printf(sc->dev, "Normal: %#x-%#x\n",
1154 starts[0], ends[0]);
1155 if (starts[1] != START_NONE)
1156 device_printf(sc->dev, "Prefetch: %#x-%#x\n",
1157 starts[1], ends[1]);
1159 } else if (type == SYS_RES_IOPORT) {
1160 cbb_cardbus_io_open(sc->dev, 0, starts[0], ends[0]);
1161 cbb_cardbus_io_open(sc->dev, 1, starts[1], ends[1]);
1162 if (bootverbose && starts[0] != START_NONE)
1163 device_printf(sc->dev, "Opening I/O: %#x-%#x\n",
1164 starts[0], ends[0]);
1169 cbb_cardbus_activate_resource(device_t brdev, device_t child, int type,
1170 int rid, struct resource *res)
1174 ret = BUS_ACTIVATE_RESOURCE(device_get_parent(brdev), child,
1178 cbb_cardbus_auto_open(device_get_softc(brdev), type);
1183 cbb_cardbus_deactivate_resource(device_t brdev, device_t child, int type,
1184 int rid, struct resource *res)
1188 ret = BUS_DEACTIVATE_RESOURCE(device_get_parent(brdev), child,
1192 cbb_cardbus_auto_open(device_get_softc(brdev), type);
1196 static struct resource *
1197 cbb_cardbus_alloc_resource(device_t brdev, device_t child, int type,
1198 int *rid, u_long start, u_long end, u_long count, u_int flags)
1200 struct cbb_softc *sc = device_get_softc(brdev);
1202 struct resource *res;
1207 tmp = rman_get_start(sc->irq_res);
1208 if (start > tmp || end < tmp || count != 1) {
1209 device_printf(child, "requested interrupt %ld-%ld,"
1210 "count = %ld not supported by cbb\n",
1215 flags |= RF_SHAREABLE;
1217 case SYS_RES_IOPORT:
1218 if (start <= cbb_start_32_io)
1219 start = cbb_start_32_io;
1222 if (count > (1 << RF_ALIGNMENT(flags)))
1223 flags = (flags & ~RF_ALIGNMENT_MASK) |
1224 rman_make_alignment_flags(count);
1226 case SYS_RES_MEMORY:
1227 if (start <= cbb_start_mem)
1228 start = cbb_start_mem;
1231 if (count < CBB_MEMALIGN)
1232 align = CBB_MEMALIGN;
1235 if (align > (1 << RF_ALIGNMENT(flags)))
1236 flags = (flags & ~RF_ALIGNMENT_MASK) |
1237 rman_make_alignment_flags(align);
1240 res = BUS_ALLOC_RESOURCE(device_get_parent(brdev), child, type, rid,
1241 start, end, count, flags & ~RF_ACTIVE);
1243 printf("cbb alloc res fail type %d rid %x\n", type, *rid);
1246 cbb_insert_res(sc, res, type, *rid);
1247 if (flags & RF_ACTIVE)
1248 if (bus_activate_resource(child, type, *rid, res) != 0) {
1249 bus_release_resource(child, type, *rid, res);
1257 cbb_cardbus_release_resource(device_t brdev, device_t child, int type,
1258 int rid, struct resource *res)
1260 struct cbb_softc *sc = device_get_softc(brdev);
1263 if (rman_get_flags(res) & RF_ACTIVE) {
1264 error = bus_deactivate_resource(child, type, rid, res);
1268 cbb_remove_res(sc, res);
1269 return (BUS_RELEASE_RESOURCE(device_get_parent(brdev), child,
1273 /************************************************************************/
1274 /* PC Card Power Functions */
1275 /************************************************************************/
1278 cbb_pcic_power_enable_socket(device_t brdev, device_t child)
1280 struct cbb_softc *sc = device_get_softc(brdev);
1283 DPRINTF(("cbb_pcic_socket_enable:\n"));
1285 /* power down/up the socket to reset */
1286 err = cbb_do_power(brdev);
1289 exca_reset(&sc->exca[0], child);
1295 cbb_pcic_power_disable_socket(device_t brdev, device_t child)
1297 struct cbb_softc *sc = device_get_softc(brdev);
1299 DPRINTF(("cbb_pcic_socket_disable\n"));
1301 /* Turn off the card's interrupt and leave it in reset, wait 10ms */
1302 exca_putb(&sc->exca[0], EXCA_INTR, 0);
1303 pause("cbbP1", hz / 100);
1305 /* power down the socket */
1306 cbb_power(brdev, CARD_OFF);
1307 exca_putb(&sc->exca[0], EXCA_PWRCTL, 0);
1309 /* wait 300ms until power fails (Tpf). */
1310 pause("cbbP2", hz * 300 / 1000);
1312 /* enable CSC interrupts */
1313 exca_putb(&sc->exca[0], EXCA_INTR, EXCA_INTR_ENABLE);
1317 /************************************************************************/
1319 /************************************************************************/
1322 cbb_power_enable_socket(device_t brdev, device_t child)
1324 struct cbb_softc *sc = device_get_softc(brdev);
1326 if (sc->flags & CBB_16BIT_CARD)
1327 return (cbb_pcic_power_enable_socket(brdev, child));
1328 return (cbb_cardbus_power_enable_socket(brdev, child));
1332 cbb_power_disable_socket(device_t brdev, device_t child)
1334 struct cbb_softc *sc = device_get_softc(brdev);
1335 if (sc->flags & CBB_16BIT_CARD)
1336 return (cbb_pcic_power_disable_socket(brdev, child));
1337 return (cbb_cardbus_power_disable_socket(brdev, child));
1341 cbb_pcic_activate_resource(device_t brdev, device_t child, int type, int rid,
1342 struct resource *res)
1344 struct cbb_softc *sc = device_get_softc(brdev);
1345 return (exca_activate_resource(&sc->exca[0], child, type, rid, res));
1349 cbb_pcic_deactivate_resource(device_t brdev, device_t child, int type,
1350 int rid, struct resource *res)
1352 struct cbb_softc *sc = device_get_softc(brdev);
1353 return (exca_deactivate_resource(&sc->exca[0], child, type, rid, res));
1356 static struct resource *
1357 cbb_pcic_alloc_resource(device_t brdev, device_t child, int type, int *rid,
1358 u_long start, u_long end, u_long count, u_int flags)
1360 struct resource *res = NULL;
1361 struct cbb_softc *sc = device_get_softc(brdev);
1366 case SYS_RES_MEMORY:
1367 if (start < cbb_start_mem)
1368 start = cbb_start_mem;
1371 if (count < CBB_MEMALIGN)
1372 align = CBB_MEMALIGN;
1375 if (align > (1 << RF_ALIGNMENT(flags)))
1376 flags = (flags & ~RF_ALIGNMENT_MASK) |
1377 rman_make_alignment_flags(align);
1379 case SYS_RES_IOPORT:
1380 if (start < cbb_start_16_io)
1381 start = cbb_start_16_io;
1386 tmp = rman_get_start(sc->irq_res);
1387 if (start > tmp || end < tmp || count != 1) {
1388 device_printf(child, "requested interrupt %ld-%ld,"
1389 "count = %ld not supported by cbb\n",
1393 flags |= RF_SHAREABLE;
1394 start = end = rman_get_start(sc->irq_res);
1397 res = BUS_ALLOC_RESOURCE(device_get_parent(brdev), child, type, rid,
1398 start, end, count, flags & ~RF_ACTIVE);
1401 cbb_insert_res(sc, res, type, *rid);
1402 if (flags & RF_ACTIVE) {
1403 if (bus_activate_resource(child, type, *rid, res) != 0) {
1404 bus_release_resource(child, type, *rid, res);
1413 cbb_pcic_release_resource(device_t brdev, device_t child, int type,
1414 int rid, struct resource *res)
1416 struct cbb_softc *sc = device_get_softc(brdev);
1419 if (rman_get_flags(res) & RF_ACTIVE) {
1420 error = bus_deactivate_resource(child, type, rid, res);
1424 cbb_remove_res(sc, res);
1425 return (BUS_RELEASE_RESOURCE(device_get_parent(brdev), child,
1429 /************************************************************************/
1430 /* PC Card methods */
1431 /************************************************************************/
1434 cbb_pcic_set_res_flags(device_t brdev, device_t child, int type, int rid,
1437 struct cbb_softc *sc = device_get_softc(brdev);
1438 struct resource *res;
1440 if (type != SYS_RES_MEMORY)
1442 res = cbb_find_res(sc, type, rid);
1444 device_printf(brdev,
1445 "set_res_flags: specified rid not found\n");
1448 return (exca_mem_set_flags(&sc->exca[0], res, flags));
1452 cbb_pcic_set_memory_offset(device_t brdev, device_t child, int rid,
1453 uint32_t cardaddr, uint32_t *deltap)
1455 struct cbb_softc *sc = device_get_softc(brdev);
1456 struct resource *res;
1458 res = cbb_find_res(sc, SYS_RES_MEMORY, rid);
1460 device_printf(brdev,
1461 "set_memory_offset: specified rid not found\n");
1464 return (exca_mem_set_offset(&sc->exca[0], res, cardaddr, deltap));
1467 /************************************************************************/
1469 /************************************************************************/
1473 cbb_activate_resource(device_t brdev, device_t child, int type, int rid,
1476 struct cbb_softc *sc = device_get_softc(brdev);
1478 if (sc->flags & CBB_16BIT_CARD)
1479 return (cbb_pcic_activate_resource(brdev, child, type, rid, r));
1481 return (cbb_cardbus_activate_resource(brdev, child, type, rid,
1486 cbb_deactivate_resource(device_t brdev, device_t child, int type,
1487 int rid, struct resource *r)
1489 struct cbb_softc *sc = device_get_softc(brdev);
1491 if (sc->flags & CBB_16BIT_CARD)
1492 return (cbb_pcic_deactivate_resource(brdev, child, type,
1495 return (cbb_cardbus_deactivate_resource(brdev, child, type,
1500 cbb_alloc_resource(device_t brdev, device_t child, int type, int *rid,
1501 u_long start, u_long end, u_long count, u_int flags)
1503 struct cbb_softc *sc = device_get_softc(brdev);
1505 if (sc->flags & CBB_16BIT_CARD)
1506 return (cbb_pcic_alloc_resource(brdev, child, type, rid,
1507 start, end, count, flags));
1509 return (cbb_cardbus_alloc_resource(brdev, child, type, rid,
1510 start, end, count, flags));
1514 cbb_release_resource(device_t brdev, device_t child, int type, int rid,
1517 struct cbb_softc *sc = device_get_softc(brdev);
1519 if (sc->flags & CBB_16BIT_CARD)
1520 return (cbb_pcic_release_resource(brdev, child, type,
1523 return (cbb_cardbus_release_resource(brdev, child, type,
1528 cbb_read_ivar(device_t brdev, device_t child, int which, uintptr_t *result)
1530 struct cbb_softc *sc = device_get_softc(brdev);
1533 case PCIB_IVAR_DOMAIN:
1534 *result = sc->domain;
1537 *result = sc->secbus;
1544 cbb_write_ivar(device_t brdev, device_t child, int which, uintptr_t value)
1546 struct cbb_softc *sc = device_get_softc(brdev);
1549 case PCIB_IVAR_DOMAIN:
1559 cbb_suspend(device_t self)
1562 struct cbb_softc *sc = device_get_softc(self);
1564 error = bus_generic_suspend(self);
1567 cbb_set(sc, CBB_SOCKET_MASK, 0); /* Quiet hardware */
1568 sc->cardok = 0; /* Card is bogus now */
1573 cbb_resume(device_t self)
1576 struct cbb_softc *sc = (struct cbb_softc *)device_get_softc(self);
1580 * Some BIOSes will not save the BARs for the pci chips, so we
1581 * must do it ourselves. If the BAR is reset to 0 for an I/O
1582 * device, it will read back as 0x1, so no explicit test for
1583 * memory devices are needed.
1585 * Note: The PCI bus code should do this automatically for us on
1586 * suspend/resume, but until it does, we have to cope.
1588 pci_write_config(self, CBBR_SOCKBASE, rman_get_start(sc->base_res), 4);
1589 DEVPRINTF((self, "PCI Memory allocated: %08lx\n",
1590 rman_get_start(sc->base_res)));
1594 /* reset interrupt -- Do we really need to do this? */
1595 tmp = cbb_get(sc, CBB_SOCKET_EVENT);
1596 cbb_set(sc, CBB_SOCKET_EVENT, tmp);
1598 /* CSC Interrupt: Card detect interrupt on */
1599 cbb_setb(sc, CBB_SOCKET_MASK, CBB_SOCKET_MASK_CD);
1601 /* Signal the thread to wakeup. */
1602 wakeup(&sc->intrhand);
1604 error = bus_generic_resume(self);
1610 cbb_child_present(device_t parent, device_t child)
1612 struct cbb_softc *sc = (struct cbb_softc *)device_get_softc(parent);
1615 sockstate = cbb_get(sc, CBB_SOCKET_STATE);
1616 return (CBB_CARD_PRESENT(sockstate) && sc->cardok);