2 * Copyright (c) 2000,2001 Jonathan Chen.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions, and the following disclaimer,
10 * without modification, immediately at the beginning of the file.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in
13 * the documentation and/or other materials provided with the
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 FOR
20 * 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
28 * $FreeBSD: src/sys/dev/cardbus/cardbus.c,v 1.28 2002/11/27 17:30:41 imp Exp $
29 * $DragonFly: src/sys/dev/pccard/cardbus/cardbus.c,v 1.8 2006/10/25 20:56:00 dillon Exp $
35 * much of the bus code was stolen directly from sys/pci/pci.c
36 * (Copyright (c) 1997, Stefan Esser <se@freebsd.org>)
38 * Written by Jonathan Chen <jon@freebsd.org>
41 #include <sys/param.h>
42 #include <sys/systm.h>
43 #include <sys/malloc.h>
44 #include <sys/kernel.h>
45 #include <sys/sysctl.h>
49 #include <sys/pciio.h>
50 #include <bus/pci/pcivar.h>
51 #include <bus/pci/pcireg.h>
52 #include <bus/pci/pci_private.h>
54 #include <dev/pccard/cardbus/cardbusreg.h>
55 #include <dev/pccard/cardbus/cardbusvar.h>
56 #include <dev/pccard/cardbus/cardbus_cis.h>
57 #include <bus/pccard/pccardvar.h>
63 SYSCTL_NODE(_hw, OID_AUTO, cardbus, CTLFLAG_RD, 0, "CardBus parameters");
65 int cardbus_debug = 0;
66 TUNABLE_INT("hw.cardbus.debug", &cardbus_debug);
67 SYSCTL_INT(_hw_cardbus, OID_AUTO, debug, CTLFLAG_RW,
71 int cardbus_cis_debug = 0;
72 TUNABLE_INT("hw.cardbus.cis_debug", &cardbus_cis_debug);
73 SYSCTL_INT(_hw_cardbus, OID_AUTO, cis_debug, CTLFLAG_RW,
74 &cardbus_cis_debug, 0,
77 #define DPRINTF(a) if (cardbus_debug) printf a
78 #define DEVPRINTF(x) if (cardbus_debug) device_printf x
81 static struct resource *cardbus_alloc_resource(device_t cbdev, device_t child,
82 int type, int *rid, u_long start, u_long end, u_long count,
84 static int cardbus_attach(device_t cbdev);
85 static int cardbus_attach_card(device_t cbdev);
86 static int cardbus_child_location_str(device_t cbdev, device_t child,
88 static int cardbus_child_pnpinfo_str(device_t cbdev, device_t child,
90 static __inline void cardbus_clear_command_bit(device_t cbdev, device_t child,
92 static void cardbus_delete_resource(device_t cbdev, device_t child,
94 static void cardbus_delete_resource_method(device_t cbdev, device_t child,
96 static int cardbus_detach(device_t cbdev);
97 static int cardbus_detach_card(device_t cbdev);
98 static void cardbus_device_setup_regs(device_t brdev, int b, int s, int f,
100 static void cardbus_disable_busmaster_method(device_t cbdev, device_t child);
101 static void cardbus_disable_io_method(device_t cbdev, device_t child,
103 static void cardbus_driver_added(device_t cbdev, driver_t *driver);
104 static void cardbus_enable_busmaster_method(device_t cbdev, device_t child);
105 static void cardbus_enable_io_method(device_t cbdev, device_t child,
107 static int cardbus_freecfg(struct cardbus_devinfo *dinfo);
108 static int cardbus_get_powerstate_method(device_t cbdev, device_t child);
109 static int cardbus_get_resource(device_t cbdev, device_t child, int type,
110 int rid, u_long *startp, u_long *countp);
111 static int cardbus_get_resource_method(device_t cbdev, device_t child,
112 int type, int rid, u_long *startp, u_long *countp);
113 static void cardbus_hdrtypedata(device_t brdev, int b, int s, int f,
115 static int cardbus_print_child(device_t cbdev, device_t child);
116 static int cardbus_print_resources(struct resource_list *rl,
117 const char *name, int type, const char *format);
118 static void cardbus_print_verbose(struct cardbus_devinfo *dinfo);
119 static int cardbus_probe(device_t cbdev);
120 static void cardbus_probe_nomatch(device_t cbdev, device_t child);
121 static struct cardbus_devinfo *cardbus_read_device(device_t brdev, int b,
123 static void cardbus_read_extcap(device_t cbdev, pcicfgregs *cfg);
124 static u_int32_t cardbus_read_config_method(device_t cbdev,
125 device_t child, int reg, int width);
126 static int cardbus_read_ivar(device_t cbdev, device_t child, int which,
128 static void cardbus_release_all_resources(device_t cbdev,
129 struct cardbus_devinfo *dinfo);
130 static int cardbus_release_resource(device_t cbdev, device_t child,
131 int type, int rid, struct resource *r);
132 static __inline void cardbus_set_command_bit(device_t cbdev, device_t child,
134 static int cardbus_set_powerstate_method(device_t cbdev, device_t child,
136 static int cardbus_set_resource(device_t cbdev, device_t child, int type,
137 int rid, u_long start, u_long count, struct resource *res);
138 static int cardbus_set_resource_method(device_t cbdev, device_t child,
139 int type, int rid, u_long start, u_long count);
140 static int cardbus_setup_intr(device_t cbdev, device_t child,
141 struct resource *irq, int flags, driver_intr_t *intr,
142 void *arg, void **cookiep, lwkt_serialize_t);
143 static int cardbus_teardown_intr(device_t cbdev, device_t child,
144 struct resource *irq, void *cookie);
145 static void cardbus_write_config_method(device_t cbdev, device_t child,
146 int reg, u_int32_t val, int width);
147 static int cardbus_write_ivar(device_t cbdev, device_t child, int which,
150 /************************************************************************/
152 /************************************************************************/
155 cardbus_probe(device_t cbdev)
157 device_set_desc(cbdev, "CardBus bus");
162 cardbus_attach(device_t cbdev)
168 cardbus_detach(device_t cbdev)
170 cardbus_detach_card(cbdev);
175 cardbus_suspend(device_t self)
177 cardbus_detach_card(self);
182 cardbus_resume(device_t self)
187 /************************************************************************/
188 /* Attach/Detach card */
189 /************************************************************************/
192 cardbus_device_setup_regs(device_t brdev, int b, int s, int f, pcicfgregs *cfg)
194 PCIB_WRITE_CONFIG(brdev, b, s, f, PCIR_INTLINE,
195 pci_get_irq(device_get_parent(brdev)), 1);
196 cfg->intline = PCIB_READ_CONFIG(brdev, b, s, f, PCIR_INTLINE, 1);
198 PCIB_WRITE_CONFIG(brdev, b, s, f, PCIR_CACHELNSZ, 0x08, 1);
199 cfg->cachelnsz = PCIB_READ_CONFIG(brdev, b, s, f, PCIR_CACHELNSZ, 1);
201 PCIB_WRITE_CONFIG(brdev, b, s, f, PCIR_LATTIMER, 0xa8, 1);
202 cfg->lattimer = PCIB_READ_CONFIG(brdev, b, s, f, PCIR_LATTIMER, 1);
204 PCIB_WRITE_CONFIG(brdev, b, s, f, PCIR_MINGNT, 0x14, 1);
205 cfg->mingnt = PCIB_READ_CONFIG(brdev, b, s, f, PCIR_MINGNT, 1);
207 PCIB_WRITE_CONFIG(brdev, b, s, f, PCIR_MAXLAT, 0x14, 1);
208 cfg->maxlat = PCIB_READ_CONFIG(brdev, b, s, f, PCIR_MAXLAT, 1);
212 cardbus_attach_card(device_t cbdev)
214 device_t brdev = device_get_parent(cbdev);
215 int cardattached = 0;
216 static int curr_bus_number = 2; /* XXX EVILE BAD (see below) */
219 cardbus_detach_card(cbdev); /* detach existing cards */
221 POWER_ENABLE_SOCKET(brdev, cbdev);
222 bus = pcib_get_bus(brdev);
226 * Not all BIOSes initialize the secondary bus number properly,
227 * so if the default is bad, we just put one in and hope it
230 bus = curr_bus_number;
231 pci_write_config(brdev, PCIR_SECBUS_2, curr_bus_number, 1);
232 pci_write_config(brdev, PCIR_SUBBUS_2, curr_bus_number + 2, 1);
233 curr_bus_number += 3;
235 /* For each function, set it up and try to attach a driver to it */
236 for (slot = 0; slot <= CARDBUS_SLOTMAX; slot++) {
237 int cardbusfunchigh = 0;
238 for (func = 0; func <= cardbusfunchigh; func++) {
239 struct cardbus_devinfo *dinfo =
240 cardbus_read_device(brdev, bus, slot, func);
244 if (dinfo->pci.cfg.mfdev)
245 cardbusfunchigh = CARDBUS_FUNCMAX;
247 cardbus_device_setup_regs(brdev, bus, slot, func,
249 cardbus_print_verbose(dinfo);
250 dinfo->pci.cfg.dev = device_add_child(cbdev, NULL, -1);
251 if (!dinfo->pci.cfg.dev) {
252 DEVPRINTF((cbdev, "Cannot add child!\n"));
253 cardbus_freecfg(dinfo);
256 resource_list_init(&dinfo->pci.resources);
257 device_set_ivars(dinfo->pci.cfg.dev, dinfo);
258 cardbus_do_cis(cbdev, dinfo->pci.cfg.dev);
259 if (device_probe_and_attach(dinfo->pci.cfg.dev) != 0)
260 cardbus_release_all_resources(cbdev, dinfo);
266 if (cardattached > 0)
268 POWER_DISABLE_SOCKET(brdev, cbdev);
273 cardbus_detach_card(device_t cbdev)
280 device_get_children(cbdev, &devlist, &numdevs);
283 kfree(devlist, M_TEMP);
287 for (tmp = 0; tmp < numdevs; tmp++) {
288 struct cardbus_devinfo *dinfo = device_get_ivars(devlist[tmp]);
289 int status = device_get_state(devlist[tmp]);
291 if (dinfo->pci.cfg.dev != devlist[tmp])
292 device_printf(cbdev, "devinfo dev mismatch\n");
293 if (status == DS_ATTACHED || status == DS_BUSY)
294 device_detach(devlist[tmp]);
295 cardbus_release_all_resources(cbdev, dinfo);
296 device_delete_child(cbdev, devlist[tmp]);
297 cardbus_freecfg(dinfo);
299 POWER_DISABLE_SOCKET(device_get_parent(cbdev), cbdev);
300 kfree(devlist, M_TEMP);
305 cardbus_driver_added(device_t cbdev, driver_t *driver)
310 struct cardbus_devinfo *dinfo;
312 device_get_children(cbdev, &devlist, &numdevs);
314 DEVICE_IDENTIFY(driver, cbdev);
315 POWER_ENABLE_SOCKET(device_get_parent(cbdev), cbdev);
316 for (tmp = 0; tmp < numdevs; tmp++) {
317 if (device_get_state(devlist[tmp]) == DS_NOTPRESENT) {
318 dinfo = device_get_ivars(devlist[tmp]);
320 cardbus_device_setup_regs(brdev, bus, slot, func,
323 cardbus_print_verbose(dinfo);
324 resource_list_init(&dinfo->pci.resources);
325 cardbus_do_cis(cbdev, dinfo->pci.cfg.dev);
326 if (device_probe_and_attach(dinfo->pci.cfg.dev) != 0) {
327 cardbus_release_all_resources(cbdev, dinfo);
332 kfree(devlist, M_TEMP);
335 /************************************************************************/
336 /* PCI-Like config reading (copied from pci.c */
337 /************************************************************************/
339 /* read configuration header into pcicfgrect structure */
342 cardbus_read_extcap(device_t cbdev, pcicfgregs *cfg)
344 #define REG(n, w) PCIB_READ_CONFIG(cbdev, cfg->bus, cfg->slot, cfg->func, n, w)
345 int ptr, nextptr, ptrptr;
347 switch (cfg->hdrtype) {
355 return; /* no extended capabilities support */
357 nextptr = REG(ptrptr, 1); /* sanity check? */
360 * Read capability entries.
362 while (nextptr != 0) {
365 printf("illegal PCI extended capability offset %d\n",
369 /* Find the next entry */
371 nextptr = REG(ptr + 1, 1);
373 /* Process this entry */
374 switch (REG(ptr, 1)) {
375 case 0x01: /* PCI power management */
376 if (cfg->pp_cap == 0) {
377 cfg->pp_cap = REG(ptr + PCIR_POWER_CAP, 2);
378 cfg->pp_status = ptr + PCIR_POWER_STATUS;
379 cfg->pp_pmcsr = ptr + PCIR_POWER_PMCSR;
380 if ((nextptr - ptr) > PCIR_POWER_DATA)
381 cfg->pp_data = ptr + PCIR_POWER_DATA;
391 /* extract header type specific config data */
394 cardbus_hdrtypedata(device_t brdev, int b, int s, int f, pcicfgregs *cfg)
396 #define REG(n, w) PCIB_READ_CONFIG(brdev, b, s, f, n, w)
397 switch (cfg->hdrtype) {
399 cfg->subvendor = REG(PCIR_SUBVEND_0, 2);
400 cfg->subdevice = REG(PCIR_SUBDEV_0, 2);
401 cfg->nummaps = PCI_MAXMAPS_0;
404 cfg->subvendor = REG(PCIR_SUBVEND_1, 2);
405 cfg->subdevice = REG(PCIR_SUBDEV_1, 2);
406 cfg->nummaps = PCI_MAXMAPS_1;
409 cfg->subvendor = REG(PCIR_SUBVEND_2, 2);
410 cfg->subdevice = REG(PCIR_SUBDEV_2, 2);
411 cfg->nummaps = PCI_MAXMAPS_2;
417 static struct cardbus_devinfo *
418 cardbus_read_device(device_t brdev, int b, int s, int f)
420 #define REG(n, w) PCIB_READ_CONFIG(brdev, b, s, f, n, w)
421 pcicfgregs *cfg = NULL;
422 struct cardbus_devinfo *devlist_entry = NULL;
424 if (REG(PCIR_DEVVENDOR, 4) != 0xffffffff) {
425 devlist_entry = kmalloc(sizeof(struct cardbus_devinfo),
426 M_DEVBUF, M_WAITOK | M_ZERO);
427 if (devlist_entry == NULL)
430 cfg = &devlist_entry->pci.cfg;
435 cfg->vendor = REG(PCIR_VENDOR, 2);
436 cfg->device = REG(PCIR_DEVICE, 2);
437 cfg->cmdreg = REG(PCIR_COMMAND, 2);
438 cfg->statreg = REG(PCIR_STATUS, 2);
439 cfg->baseclass = REG(PCIR_CLASS, 1);
440 cfg->subclass = REG(PCIR_SUBCLASS, 1);
441 cfg->progif = REG(PCIR_PROGIF, 1);
442 cfg->revid = REG(PCIR_REVID, 1);
443 cfg->hdrtype = REG(PCIR_HDRTYPE, 1);
444 cfg->cachelnsz = REG(PCIR_CACHELNSZ, 1);
445 cfg->lattimer = REG(PCIR_LATTIMER, 1);
446 cfg->intpin = REG(PCIR_INTPIN, 1);
447 cfg->intline = REG(PCIR_INTLINE, 1);
449 cfg->mingnt = REG(PCIR_MINGNT, 1);
450 cfg->maxlat = REG(PCIR_MAXLAT, 1);
452 cfg->mfdev = (cfg->hdrtype & PCIM_MFDEV) != 0;
453 cfg->hdrtype &= ~PCIM_MFDEV;
455 cardbus_hdrtypedata(brdev, b, s, f, cfg);
457 if (REG(PCIR_STATUS, 2) & PCIM_STATUS_CAPPRESENT)
458 cardbus_read_extcap(brdev, cfg);
460 devlist_entry->pci.conf.pc_sel.pc_bus = cfg->bus;
461 devlist_entry->pci.conf.pc_sel.pc_dev = cfg->slot;
462 devlist_entry->pci.conf.pc_sel.pc_func = cfg->func;
463 devlist_entry->pci.conf.pc_hdr = cfg->hdrtype;
465 devlist_entry->pci.conf.pc_subvendor = cfg->subvendor;
466 devlist_entry->pci.conf.pc_subdevice = cfg->subdevice;
467 devlist_entry->pci.conf.pc_vendor = cfg->vendor;
468 devlist_entry->pci.conf.pc_device = cfg->device;
470 devlist_entry->pci.conf.pc_class = cfg->baseclass;
471 devlist_entry->pci.conf.pc_subclass = cfg->subclass;
472 devlist_entry->pci.conf.pc_progif = cfg->progif;
473 devlist_entry->pci.conf.pc_revid = cfg->revid;
475 return (devlist_entry);
479 /* free pcicfgregs structure and all depending data structures */
482 cardbus_freecfg(struct cardbus_devinfo *dinfo)
484 kfree(dinfo, M_DEVBUF);
490 cardbus_print_verbose(struct cardbus_devinfo *dinfo)
492 if (bootverbose || cardbus_debug > 0)
494 pcicfgregs *cfg = &dinfo->pci.cfg;
496 printf("found->\tvendor=0x%04x, dev=0x%04x, revid=0x%02x\n",
497 cfg->vendor, cfg->device, cfg->revid);
498 printf("\tclass=[%s]%02x-%02x-%02x, hdrtype=0x%02x, mfdev=%d\n",
499 pci_class_to_string(cfg->baseclass),
500 cfg->baseclass, cfg->subclass, cfg->progif,
501 cfg->hdrtype, cfg->mfdev);
502 printf("\tcmdreg=0x%04x, statreg=0x%04x, "
503 "cachelnsz=%d (dwords)\n",
504 cfg->cmdreg, cfg->statreg, cfg->cachelnsz);
505 printf("\tlattimer=0x%02x (%d ns), mingnt=0x%02x (%d ns), "
506 "maxlat=0x%02x (%d ns)\n",
507 cfg->lattimer, cfg->lattimer * 30,
508 cfg->mingnt, cfg->mingnt * 250, cfg->maxlat,
511 printf("\tintpin=%c, irq=%d\n",
512 cfg->intpin + 'a' - 1, cfg->intline);
516 /************************************************************************/
518 /************************************************************************/
521 cardbus_set_resource(device_t cbdev, device_t child, int type, int rid,
522 u_long start, u_long count, struct resource *res)
524 struct cardbus_devinfo *dinfo;
525 struct resource_list *rl;
526 struct resource_list_entry *rle;
528 if (device_get_parent(child) != cbdev)
531 dinfo = device_get_ivars(child);
532 rl = &dinfo->pci.resources;
533 rle = resource_list_find(rl, type, rid);
535 resource_list_add(rl, type, rid, start, start + count - 1,
538 rle = resource_list_find(rl, type, rid);
542 if (rle->res == NULL) {
543 } else if (rle->res->r_dev == cbdev &&
544 (!(rman_get_flags(rle->res) & RF_ACTIVE))) {
546 f = rman_get_flags(rle->res);
547 bus_release_resource(cbdev, type, rid, res);
548 rle->res = bus_alloc_resource(cbdev, type, &rid,
549 start, start + count - 1,
552 device_printf(cbdev, "set_resource: resource busy\n");
556 rle->end = start + count - 1;
561 if (device_get_parent(child) == cbdev)
562 pci_write_config(child, rid, start, 4);
567 cardbus_get_resource(device_t cbdev, device_t child, int type, int rid,
568 u_long *startp, u_long *countp)
570 struct cardbus_devinfo *dinfo;
571 struct resource_list *rl;
572 struct resource_list_entry *rle;
574 if (device_get_parent(child) != cbdev)
577 dinfo = device_get_ivars(child);
578 rl = &dinfo->pci.resources;
579 rle = resource_list_find(rl, type, rid);
583 *startp = rle->start;
585 *countp = rle->count;
590 cardbus_delete_resource(device_t cbdev, device_t child, int type, int rid)
592 struct cardbus_devinfo *dinfo;
593 struct resource_list *rl;
594 struct resource_list_entry *rle;
596 if (device_get_parent(child) != cbdev)
599 dinfo = device_get_ivars(child);
600 rl = &dinfo->pci.resources;
601 rle = resource_list_find(rl, type, rid);
604 if (rle->res->r_dev != cbdev ||
605 rman_get_flags(rle->res) & RF_ACTIVE) {
606 device_printf(cbdev, "delete_resource: "
607 "Resource still owned by child, oops. "
608 "(type=%d, rid=%d, addr=%lx)\n",
610 rman_get_start(rle->res));
613 bus_release_resource(cbdev, type, rid, rle->res);
615 resource_list_delete(rl, type, rid);
617 if (device_get_parent(child) == cbdev)
618 pci_write_config(child, rid, 0, 4);
622 cardbus_set_resource_method(device_t cbdev, device_t child, int type, int rid,
623 u_long start, u_long count)
626 ret = cardbus_set_resource(cbdev, child, type, rid, start, count, NULL);
629 return BUS_SET_RESOURCE(device_get_parent(cbdev), child, type, rid,
634 cardbus_get_resource_method(device_t cbdev, device_t child, int type, int rid,
635 u_long *startp, u_long *countp)
638 ret = cardbus_get_resource(cbdev, child, type, rid, startp, countp);
641 return BUS_GET_RESOURCE(device_get_parent(cbdev), child, type, rid,
646 cardbus_delete_resource_method(device_t cbdev, device_t child,
649 cardbus_delete_resource(cbdev, child, type, rid);
650 BUS_DELETE_RESOURCE(device_get_parent(cbdev), child, type, rid);
654 cardbus_release_all_resources(device_t cbdev, struct cardbus_devinfo *dinfo)
656 struct resource_list_entry *rle;
658 /* Free all allocated resources */
659 SLIST_FOREACH(rle, &dinfo->pci.resources, link) {
661 if (rle->res->r_dev != cbdev)
662 device_printf(cbdev, "release_all_resource: "
663 "Resource still owned by child, oops. "
664 "(type=%d, rid=%d, addr=%lx)\n",
666 rman_get_start(rle->res));
667 BUS_RELEASE_RESOURCE(device_get_parent(cbdev),
673 * zero out config so the card won't acknowledge
674 * access to the space anymore
676 pci_write_config(dinfo->pci.cfg.dev, rle->rid, 0, 4);
679 resource_list_free(&dinfo->pci.resources);
682 static struct resource *
683 cardbus_alloc_resource(device_t cbdev, device_t child, int type,
684 int *rid, u_long start, u_long end, u_long count, u_int flags)
686 struct cardbus_devinfo *dinfo;
687 struct resource_list_entry *rle = 0;
688 int passthrough = (device_get_parent(child) != cbdev);
691 return (BUS_ALLOC_RESOURCE(device_get_parent(cbdev), child,
692 type, rid, start, end, count, flags));
695 dinfo = device_get_ivars(child);
696 rle = resource_list_find(&dinfo->pci.resources, type, *rid);
699 return NULL; /* no resource of that type/rid */
702 device_printf(cbdev, "WARNING: Resource not reserved by bus\n");
705 /* Release the cardbus hold on the resource */
706 if (rle->res->r_dev != cbdev)
708 bus_release_resource(cbdev, type, *rid, rle->res);
713 if (!(flags & RF_ALIGNMENT_MASK))
714 flags |= rman_make_alignment_flags(rle->count);
717 flags |= RF_SHAREABLE;
720 /* Allocate the resource to the child */
721 return resource_list_alloc(&dinfo->pci.resources, cbdev, child,
722 type, rid, rle->start, rle->end, rle->count, flags);
727 cardbus_release_resource(device_t cbdev, device_t child, int type, int rid,
730 struct cardbus_devinfo *dinfo;
731 int passthrough = (device_get_parent(child) != cbdev);
732 struct resource_list_entry *rle = 0;
737 return BUS_RELEASE_RESOURCE(device_get_parent(cbdev), child,
741 dinfo = device_get_ivars(child);
743 * According to the PCI 2.2 spec, devices may share an address
744 * decoder between memory mapped ROM access and memory
745 * mapped register access. To be safe, disable ROM access
746 * whenever it is released.
748 if (rid == CARDBUS_ROM_REG) {
751 rom_reg = pci_read_config(child, rid, 4);
752 rom_reg &= ~CARDBUS_ROM_ENABLE;
753 pci_write_config(child, rid, rom_reg, 4);
756 rle = resource_list_find(&dinfo->pci.resources, type, rid);
759 device_printf(cbdev, "Allocated resource not found\n");
763 device_printf(cbdev, "Allocated resource not recorded\n");
767 ret = BUS_RELEASE_RESOURCE(device_get_parent(cbdev), child,
772 flags = rman_make_alignment_flags(rle->count);
775 flags = RF_SHAREABLE;
780 /* Restore cardbus hold on the resource */
781 rle->res = bus_alloc_resource(cbdev, type, &rid,
782 rle->start, rle->end, rle->count, flags);
783 if (rle->res == NULL)
784 device_printf(cbdev, "release_resource: "
785 "unable to reacquire resource\n");
790 cardbus_setup_intr(device_t cbdev, device_t child, struct resource *irq,
791 int flags, driver_intr_t *intr, void *arg,
792 void **cookiep, lwkt_serialize_t serializer)
796 struct cardbus_devinfo *dinfo;
798 ret = bus_generic_setup_intr(cbdev, child, irq, flags, intr, arg,
799 cookiep, serializer);
803 for (cdev = child; cbdev != device_get_parent(cdev);
804 cdev = device_get_parent(cdev))
806 dinfo = device_get_ivars(cdev);
812 cardbus_teardown_intr(device_t cbdev, device_t child, struct resource *irq,
817 struct cardbus_devinfo *dinfo;
819 ret = bus_generic_teardown_intr(cbdev, child, irq, cookie);
823 for (cdev = child; cbdev != device_get_parent(cdev);
824 cdev = device_get_parent(cdev))
826 dinfo = device_get_ivars(cdev);
832 /************************************************************************/
833 /* Other Bus Methods */
834 /************************************************************************/
837 cardbus_print_resources(struct resource_list *rl, const char *name,
838 int type, const char *format)
840 struct resource_list_entry *rle;
845 /* Yes, this is kinda cheating */
846 SLIST_FOREACH(rle, rl, link) {
847 if (rle->type == type) {
849 retval += printf(" %s ", name);
850 else if (printed > 0)
851 retval += printf(",");
853 retval += printf(format, rle->start);
854 if (rle->count > 1) {
855 retval += printf("-");
856 retval += printf(format, rle->start +
865 cardbus_print_child(device_t cbdev, device_t child)
867 struct cardbus_devinfo *dinfo;
868 struct resource_list *rl;
872 dinfo = device_get_ivars(child);
873 cfg = &dinfo->pci.cfg;
874 rl = &dinfo->pci.resources;
876 retval += bus_print_child_header(cbdev, child);
878 retval += cardbus_print_resources(rl, "port", SYS_RES_IOPORT, "%#lx");
879 retval += cardbus_print_resources(rl, "mem", SYS_RES_MEMORY, "%#lx");
880 retval += cardbus_print_resources(rl, "irq", SYS_RES_IRQ, "%ld");
881 if (device_get_flags(cbdev))
882 retval += printf(" flags %#x", device_get_flags(cbdev));
884 retval += printf(" at device %d.%d", pci_get_slot(child),
885 pci_get_function(child));
887 retval += bus_print_child_footer(cbdev, child);
893 cardbus_probe_nomatch(device_t cbdev, device_t child)
895 struct cardbus_devinfo *dinfo;
898 dinfo = device_get_ivars(child);
899 cfg = &dinfo->pci.cfg;
900 device_printf(cbdev, "<unknown card>");
901 printf(" (vendor=0x%04x, dev=0x%04x)", cfg->vendor, cfg->device);
902 printf(" at %d.%d", pci_get_slot(child), pci_get_function(child));
903 if (cfg->intpin > 0 && cfg->intline != 255) {
904 printf(" irq %d", cfg->intline);
912 cardbus_child_location_str(device_t cbdev, device_t child, char *buf,
915 struct cardbus_devinfo *dinfo;
918 dinfo = device_get_ivars(child);
919 cfg = &dinfo->pci.cfg;
920 snprintf(buf, buflen, "slot=%d function=%d", pci_get_slot(child),
921 pci_get_function(child));
926 cardbus_child_pnpinfo_str(device_t cbdev, device_t child, char *buf,
929 struct cardbus_devinfo *dinfo;
932 dinfo = device_get_ivars(child);
933 cfg = &dinfo->pci.cfg;
934 snprintf(buf, buflen, "vendor=0x%04x device=0x%04x subvendor=0x%04x "
935 "subdevice=0x%04x", cfg->vendor, cfg->device, cfg->subvendor,
941 cardbus_read_ivar(device_t cbdev, device_t child, int which, u_long *result)
943 struct cardbus_devinfo *dinfo;
946 dinfo = device_get_ivars(child);
947 cfg = &dinfo->pci.cfg;
950 case PCI_IVAR_ETHADDR:
952 * The generic accessor doesn't deal with failure, so
953 * we set the return value, then return an error.
955 if ((dinfo->fepresent & (1 << TPL_FUNCE_LAN_NID)) == 0) {
956 *((u_int8_t **) result) = NULL;
959 *((u_int8_t **) result) = dinfo->funce.lan.nid;
961 case PCI_IVAR_SUBVENDOR:
962 *result = cfg->subvendor;
964 case PCI_IVAR_SUBDEVICE:
965 *result = cfg->subdevice;
967 case PCI_IVAR_VENDOR:
968 *result = cfg->vendor;
970 case PCI_IVAR_DEVICE:
971 *result = cfg->device;
974 *result = (cfg->device << 16) | cfg->vendor;
977 *result = cfg->baseclass;
979 case PCI_IVAR_SUBCLASS:
980 *result = cfg->subclass;
982 case PCI_IVAR_PROGIF:
983 *result = cfg->progif;
986 *result = cfg->revid;
988 case PCI_IVAR_INTPIN:
989 *result = cfg->intpin;
992 *result = cfg->intline;
1000 case PCI_IVAR_FUNCTION:
1001 *result = cfg->func;
1010 cardbus_write_ivar(device_t cbdev, device_t child, int which, uintptr_t value)
1012 struct cardbus_devinfo *dinfo;
1015 dinfo = device_get_ivars(child);
1016 cfg = &dinfo->pci.cfg;
1019 case PCI_IVAR_ETHADDR:
1020 case PCI_IVAR_SUBVENDOR:
1021 case PCI_IVAR_SUBDEVICE:
1022 case PCI_IVAR_VENDOR:
1023 case PCI_IVAR_DEVICE:
1024 case PCI_IVAR_DEVID:
1025 case PCI_IVAR_CLASS:
1026 case PCI_IVAR_SUBCLASS:
1027 case PCI_IVAR_PROGIF:
1028 case PCI_IVAR_REVID:
1029 case PCI_IVAR_INTPIN:
1033 case PCI_IVAR_FUNCTION:
1034 return EINVAL; /* disallow for now */
1041 /************************************************************************/
1042 /* Compatibility with PCI bus (XXX: Do we need this?) */
1043 /************************************************************************/
1046 * PCI power manangement
1049 cardbus_set_powerstate_method(device_t cbdev, device_t child, int state)
1051 struct cardbus_devinfo *dinfo = device_get_ivars(child);
1052 pcicfgregs *cfg = &dinfo->pci.cfg;
1056 if (cfg->pp_cap != 0) {
1057 status = PCI_READ_CONFIG(cbdev, child, cfg->pp_status, 2)
1058 & ~PCIM_PSTAT_DMASK;
1061 case PCI_POWERSTATE_D0:
1062 status |= PCIM_PSTAT_D0;
1064 case PCI_POWERSTATE_D1:
1065 if (cfg->pp_cap & PCIM_PCAP_D1SUPP) {
1066 status |= PCIM_PSTAT_D1;
1068 result = EOPNOTSUPP;
1071 case PCI_POWERSTATE_D2:
1072 if (cfg->pp_cap & PCIM_PCAP_D2SUPP) {
1073 status |= PCIM_PSTAT_D2;
1075 result = EOPNOTSUPP;
1078 case PCI_POWERSTATE_D3:
1079 status |= PCIM_PSTAT_D3;
1085 PCI_WRITE_CONFIG(cbdev, child, cfg->pp_status,
1094 cardbus_get_powerstate_method(device_t cbdev, device_t child)
1096 struct cardbus_devinfo *dinfo = device_get_ivars(child);
1097 pcicfgregs *cfg = &dinfo->pci.cfg;
1101 if (cfg->pp_cap != 0) {
1102 status = PCI_READ_CONFIG(cbdev, child, cfg->pp_status, 2);
1103 switch (status & PCIM_PSTAT_DMASK) {
1105 result = PCI_POWERSTATE_D0;
1108 result = PCI_POWERSTATE_D1;
1111 result = PCI_POWERSTATE_D2;
1114 result = PCI_POWERSTATE_D3;
1117 result = PCI_POWERSTATE_UNKNOWN;
1121 /* No support, device is always at D0 */
1122 result = PCI_POWERSTATE_D0;
1128 cardbus_read_config_method(device_t cbdev, device_t child, int reg, int width)
1130 struct cardbus_devinfo *dinfo = device_get_ivars(child);
1131 pcicfgregs *cfg = &dinfo->pci.cfg;
1133 return PCIB_READ_CONFIG(device_get_parent(cbdev),
1134 cfg->bus, cfg->slot, cfg->func, reg, width);
1138 cardbus_write_config_method(device_t cbdev, device_t child, int reg,
1139 u_int32_t val, int width)
1141 struct cardbus_devinfo *dinfo = device_get_ivars(child);
1142 pcicfgregs *cfg = &dinfo->pci.cfg;
1144 PCIB_WRITE_CONFIG(device_get_parent(cbdev),
1145 cfg->bus, cfg->slot, cfg->func, reg, val, width);
1148 static __inline void
1149 cardbus_set_command_bit(device_t cbdev, device_t child, u_int16_t bit)
1153 command = PCI_READ_CONFIG(cbdev, child, PCIR_COMMAND, 2);
1155 PCI_WRITE_CONFIG(cbdev, child, PCIR_COMMAND, command, 2);
1158 static __inline void
1159 cardbus_clear_command_bit(device_t cbdev, device_t child, u_int16_t bit)
1163 command = PCI_READ_CONFIG(cbdev, child, PCIR_COMMAND, 2);
1165 PCI_WRITE_CONFIG(cbdev, child, PCIR_COMMAND, command, 2);
1169 cardbus_enable_busmaster_method(device_t cbdev, device_t child)
1171 cardbus_set_command_bit(cbdev, child, PCIM_CMD_BUSMASTEREN);
1175 cardbus_disable_busmaster_method(device_t cbdev, device_t child)
1177 cardbus_clear_command_bit(cbdev, child, PCIM_CMD_BUSMASTEREN);
1181 cardbus_enable_io_method(device_t cbdev, device_t child, int space)
1184 case SYS_RES_IOPORT:
1185 cardbus_set_command_bit(cbdev, child, PCIM_CMD_PORTEN);
1187 case SYS_RES_MEMORY:
1188 cardbus_set_command_bit(cbdev, child, PCIM_CMD_MEMEN);
1194 cardbus_disable_io_method(device_t cbdev, device_t child, int space)
1197 case SYS_RES_IOPORT:
1198 cardbus_clear_command_bit(cbdev, child, PCIM_CMD_PORTEN);
1200 case SYS_RES_MEMORY:
1201 cardbus_clear_command_bit(cbdev, child, PCIM_CMD_MEMEN);
1206 static device_method_t cardbus_methods[] = {
1207 /* Device interface */
1208 DEVMETHOD(device_probe, cardbus_probe),
1209 DEVMETHOD(device_attach, cardbus_attach),
1210 DEVMETHOD(device_detach, cardbus_detach),
1211 DEVMETHOD(device_shutdown, bus_generic_shutdown),
1212 DEVMETHOD(device_suspend, cardbus_suspend),
1213 DEVMETHOD(device_resume, cardbus_resume),
1216 DEVMETHOD(bus_print_child, cardbus_print_child),
1217 DEVMETHOD(bus_probe_nomatch, cardbus_probe_nomatch),
1218 DEVMETHOD(bus_read_ivar, cardbus_read_ivar),
1219 DEVMETHOD(bus_write_ivar, cardbus_write_ivar),
1220 DEVMETHOD(bus_driver_added, cardbus_driver_added),
1221 DEVMETHOD(bus_alloc_resource, cardbus_alloc_resource),
1222 DEVMETHOD(bus_release_resource, cardbus_release_resource),
1223 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
1224 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
1225 DEVMETHOD(bus_setup_intr, cardbus_setup_intr),
1226 DEVMETHOD(bus_teardown_intr, cardbus_teardown_intr),
1228 DEVMETHOD(bus_set_resource, cardbus_set_resource_method),
1229 DEVMETHOD(bus_get_resource, cardbus_get_resource_method),
1230 DEVMETHOD(bus_delete_resource, cardbus_delete_resource_method),
1231 DEVMETHOD(bus_child_pnpinfo_str, cardbus_child_pnpinfo_str),
1232 DEVMETHOD(bus_child_location_str, cardbus_child_location_str),
1234 /* Card Interface */
1235 DEVMETHOD(card_attach_card, cardbus_attach_card),
1236 DEVMETHOD(card_detach_card, cardbus_detach_card),
1237 DEVMETHOD(card_cis_read, cardbus_cis_read),
1238 DEVMETHOD(card_cis_free, cardbus_cis_free),
1240 /* Cardbus/PCI interface */
1241 DEVMETHOD(pci_read_config, cardbus_read_config_method),
1242 DEVMETHOD(pci_write_config, cardbus_write_config_method),
1243 DEVMETHOD(pci_enable_busmaster, cardbus_enable_busmaster_method),
1244 DEVMETHOD(pci_disable_busmaster, cardbus_disable_busmaster_method),
1245 DEVMETHOD(pci_enable_io, cardbus_enable_io_method),
1246 DEVMETHOD(pci_disable_io, cardbus_disable_io_method),
1247 DEVMETHOD(pci_get_powerstate, cardbus_get_powerstate_method),
1248 DEVMETHOD(pci_set_powerstate, cardbus_set_powerstate_method),
1253 static driver_t cardbus_driver = {
1259 static devclass_t cardbus_devclass;
1261 DRIVER_MODULE(cardbus, cbb, cardbus_driver, cardbus_devclass, 0, 0);
1262 MODULE_VERSION(cardbus, 1);
1263 MODULE_DEPEND(cardbus, exca, 1, 1, 1);
1265 MODULE_DEPEND(cardbus, pccbb, 1, 1, 1);