346 ic->ic_scan_start = ipw_scan_start;
347 ic->ic_scan_end = ipw_scan_end;
348 ic->ic_set_channel = ipw_set_channel;
349 ic->ic_scan_curchan = ipw_scan_curchan;
350 ic->ic_scan_mindwell = ipw_scan_mindwell;
351 ic->ic_raw_xmit = ipw_raw_xmit;
352
353 ic->ic_vap_create = ipw_vap_create;
354 ic->ic_vap_delete = ipw_vap_delete;
355
356 bpfattach(ifp, DLT_IEEE802_11_RADIO,
357 sizeof (struct ieee80211_frame) + sizeof (sc->sc_txtap));
358
359 sc->sc_rxtap_len = sizeof sc->sc_rxtap;
360 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len);
361 sc->sc_rxtap.wr_ihdr.it_present = htole32(IPW_RX_RADIOTAP_PRESENT);
362
363 sc->sc_txtap_len = sizeof sc->sc_txtap;
364 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len);
365 sc->sc_txtap.wt_ihdr.it_present = htole32(IPW_TX_RADIOTAP_PRESENT);
366
367 /*
368 * Add a few sysctl knobs.
369 */
370 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
371 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "radio",
372 CTLTYPE_INT | CTLFLAG_RD, sc, 0, ipw_sysctl_radio, "I",
373 "radio transmitter switch state (0=off, 1=on)");
374
375 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
376 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "stats",
377 CTLTYPE_OPAQUE | CTLFLAG_RD, sc, 0, ipw_sysctl_stats, "S",
378 "statistics");
379
380 /*
381 * Hook our interrupt after all initialization is complete.
382 */
383 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
384 NULL, ipw_intr, sc, &sc->sc_ih);
385 if (error != 0) {
386 device_printf(dev, "could not set up interrupt\n");
387 goto fail4;
388 }
389
390 if (bootverbose)
391 ieee80211_announce(ic);
392
393 return 0;
394fail4:
395 if_free(ifp);
396fail3:
397 ipw_release(sc);
398fail2:
399 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
400fail1:
401 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
402fail:
403 mtx_destroy(&sc->sc_mtx);
404 return ENXIO;
405}
406
407static int
408ipw_detach(device_t dev)
409{
410 struct ipw_softc *sc = device_get_softc(dev);
411 struct ifnet *ifp = sc->sc_ifp;
412 struct ieee80211com *ic = ifp->if_l2com;
413
414 ipw_stop(sc);
415
416 bpfdetach(ifp);
417 ieee80211_ifdetach(ic);
418
419 callout_drain(&sc->sc_wdtimer);
420 taskqueue_drain(taskqueue_fast, &sc->sc_init_task);
421 taskqueue_drain(taskqueue_fast, &sc->sc_scan_task);
422 taskqueue_drain(taskqueue_fast, &sc->sc_bmiss_task);
423
424 ipw_release(sc);
425
426 bus_teardown_intr(dev, sc->irq, sc->sc_ih);
427 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
428
429 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
430
431 if_free(ifp);
432
433 if (sc->sc_firmware != NULL) {
434 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
435 sc->sc_firmware = NULL;
436 }
437
438 mtx_destroy(&sc->sc_mtx);
439
440 return 0;
441}
442
443static struct ieee80211vap *
444ipw_vap_create(struct ieee80211com *ic,
445 const char name[IFNAMSIZ], int unit, int opmode, int flags,
446 const uint8_t bssid[IEEE80211_ADDR_LEN],
447 const uint8_t mac[IEEE80211_ADDR_LEN])
448{
449 struct ifnet *ifp = ic->ic_ifp;
450 struct ipw_softc *sc = ifp->if_softc;
451 struct ipw_vap *ivp;
452 struct ieee80211vap *vap;
453 const struct firmware *fp;
454 const struct ipw_firmware_hdr *hdr;
455 const char *imagename;
456
457 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
458 return NULL;
459
460 switch (opmode) {
461 case IEEE80211_M_STA:
462 imagename = "ipw_bss";
463 break;
464 case IEEE80211_M_IBSS:
465 imagename = "ipw_ibss";
466 break;
467 case IEEE80211_M_MONITOR:
468 imagename = "ipw_monitor";
469 break;
470 default:
471 return NULL;
472 }
473
474 /*
475 * Load firmware image using the firmware(9) subsystem. Doing
476 * this unlocked is ok since we're single-threaded by the
477 * 802.11 layer.
478 */
479 if (sc->sc_firmware == NULL ||
480 strcmp(sc->sc_firmware->name, imagename) != 0) {
481 if (sc->sc_firmware != NULL)
482 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
483 sc->sc_firmware = firmware_get(imagename);
484 }
485 if (sc->sc_firmware == NULL) {
486 device_printf(sc->sc_dev,
487 "could not load firmware image '%s'\n", imagename);
488 return NULL;
489 }
490 fp = sc->sc_firmware;
491 if (fp->datasize < sizeof *hdr) {
492 device_printf(sc->sc_dev,
493 "firmware image too short %zu\n", fp->datasize);
494 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
495 sc->sc_firmware = NULL;
496 return NULL;
497 }
498 hdr = (const struct ipw_firmware_hdr *)fp->data;
499 if (fp->datasize < sizeof *hdr + le32toh(hdr->mainsz) +
500 le32toh(hdr->ucodesz)) {
501 device_printf(sc->sc_dev,
502 "firmware image too short %zu\n", fp->datasize);
503 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
504 sc->sc_firmware = NULL;
505 return NULL;
506 }
507
508 ivp = (struct ipw_vap *) malloc(sizeof(struct ipw_vap),
509 M_80211_VAP, M_NOWAIT | M_ZERO);
510 if (ivp == NULL)
511 return NULL;
512 vap = &ivp->vap;
513
514 TASK_INIT(&ivp->assoc_task, 0, ipw_assoc_task, vap);
515 TASK_INIT(&ivp->disassoc_task, 0, ipw_disassoc_task, vap);
516 TASK_INIT(&ivp->assoc_success_task, 0, ipw_assocsuccess, vap);
517 TASK_INIT(&ivp->assoc_failed_task, 0, ipw_assocfailed, vap);
518 TASK_INIT(&ivp->scandone_task, 0, ipw_scandone, vap);
519
520 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
521 /* override with driver methods */
522 ivp->newstate = vap->iv_newstate;
523 vap->iv_newstate = ipw_newstate;
524
525 /* complete setup */
526 ieee80211_vap_attach(vap, ieee80211_media_change, ipw_media_status);
527 ic->ic_opmode = opmode;
528 return vap;
529}
530
531static void
532ipw_vap_delete(struct ieee80211vap *vap)
533{
534 struct ipw_vap *ivp = IPW_VAP(vap);
535
536 ieee80211_vap_detach(vap);
537 free(ivp, M_80211_VAP);
538}
539
540static int
541ipw_dma_alloc(struct ipw_softc *sc)
542{
543 struct ipw_soft_bd *sbd;
544 struct ipw_soft_hdr *shdr;
545 struct ipw_soft_buf *sbuf;
546 bus_addr_t physaddr;
547 int error, i;
548
549 /*
550 * Allocate and map tx ring.
551 */
552 error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT,
553 BUS_SPACE_MAXADDR, NULL, NULL, IPW_TBD_SZ, 1, IPW_TBD_SZ, 0, NULL,
554 NULL, &sc->tbd_dmat);
555 if (error != 0) {
556 device_printf(sc->sc_dev, "could not create tx ring DMA tag\n");
557 goto fail;
558 }
559
560 error = bus_dmamem_alloc(sc->tbd_dmat, (void **)&sc->tbd_list,
561 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->tbd_map);
562 if (error != 0) {
563 device_printf(sc->sc_dev,
564 "could not allocate tx ring DMA memory\n");
565 goto fail;
566 }
567
568 error = bus_dmamap_load(sc->tbd_dmat, sc->tbd_map, sc->tbd_list,
569 IPW_TBD_SZ, ipw_dma_map_addr, &sc->tbd_phys, 0);
570 if (error != 0) {
571 device_printf(sc->sc_dev, "could not map tx ring DMA memory\n");
572 goto fail;
573 }
574
575 /*
576 * Allocate and map rx ring.
577 */
578 error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT,
579 BUS_SPACE_MAXADDR, NULL, NULL, IPW_RBD_SZ, 1, IPW_RBD_SZ, 0, NULL,
580 NULL, &sc->rbd_dmat);
581 if (error != 0) {
582 device_printf(sc->sc_dev, "could not create rx ring DMA tag\n");
583 goto fail;
584 }
585
586 error = bus_dmamem_alloc(sc->rbd_dmat, (void **)&sc->rbd_list,
587 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->rbd_map);
588 if (error != 0) {
589 device_printf(sc->sc_dev,
590 "could not allocate rx ring DMA memory\n");
591 goto fail;
592 }
593
594 error = bus_dmamap_load(sc->rbd_dmat, sc->rbd_map, sc->rbd_list,
595 IPW_RBD_SZ, ipw_dma_map_addr, &sc->rbd_phys, 0);
596 if (error != 0) {
597 device_printf(sc->sc_dev, "could not map rx ring DMA memory\n");
598 goto fail;
599 }
600
601 /*
602 * Allocate and map status ring.
603 */
604 error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT,
605 BUS_SPACE_MAXADDR, NULL, NULL, IPW_STATUS_SZ, 1, IPW_STATUS_SZ, 0,
606 NULL, NULL, &sc->status_dmat);
607 if (error != 0) {
608 device_printf(sc->sc_dev,
609 "could not create status ring DMA tag\n");
610 goto fail;
611 }
612
613 error = bus_dmamem_alloc(sc->status_dmat, (void **)&sc->status_list,
614 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->status_map);
615 if (error != 0) {
616 device_printf(sc->sc_dev,
617 "could not allocate status ring DMA memory\n");
618 goto fail;
619 }
620
621 error = bus_dmamap_load(sc->status_dmat, sc->status_map,
622 sc->status_list, IPW_STATUS_SZ, ipw_dma_map_addr, &sc->status_phys,
623 0);
624 if (error != 0) {
625 device_printf(sc->sc_dev,
626 "could not map status ring DMA memory\n");
627 goto fail;
628 }
629
630 /*
631 * Allocate command DMA map.
632 */
633 error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT,
634 BUS_SPACE_MAXADDR, NULL, NULL, sizeof (struct ipw_cmd), 1,
635 sizeof (struct ipw_cmd), 0, NULL, NULL, &sc->cmd_dmat);
636 if (error != 0) {
637 device_printf(sc->sc_dev, "could not create command DMA tag\n");
638 goto fail;
639 }
640
641 error = bus_dmamap_create(sc->cmd_dmat, 0, &sc->cmd_map);
642 if (error != 0) {
643 device_printf(sc->sc_dev,
644 "could not create command DMA map\n");
645 goto fail;
646 }
647
648 /*
649 * Allocate headers DMA maps.
650 */
651 error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT,
652 BUS_SPACE_MAXADDR, NULL, NULL, sizeof (struct ipw_hdr), 1,
653 sizeof (struct ipw_hdr), 0, NULL, NULL, &sc->hdr_dmat);
654 if (error != 0) {
655 device_printf(sc->sc_dev, "could not create header DMA tag\n");
656 goto fail;
657 }
658
659 SLIST_INIT(&sc->free_shdr);
660 for (i = 0; i < IPW_NDATA; i++) {
661 shdr = &sc->shdr_list[i];
662 error = bus_dmamap_create(sc->hdr_dmat, 0, &shdr->map);
663 if (error != 0) {
664 device_printf(sc->sc_dev,
665 "could not create header DMA map\n");
666 goto fail;
667 }
668 SLIST_INSERT_HEAD(&sc->free_shdr, shdr, next);
669 }
670
671 /*
672 * Allocate tx buffers DMA maps.
673 */
674 error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT,
675 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, IPW_MAX_NSEG, MCLBYTES, 0,
676 NULL, NULL, &sc->txbuf_dmat);
677 if (error != 0) {
678 device_printf(sc->sc_dev, "could not create tx DMA tag\n");
679 goto fail;
680 }
681
682 SLIST_INIT(&sc->free_sbuf);
683 for (i = 0; i < IPW_NDATA; i++) {
684 sbuf = &sc->tx_sbuf_list[i];
685 error = bus_dmamap_create(sc->txbuf_dmat, 0, &sbuf->map);
686 if (error != 0) {
687 device_printf(sc->sc_dev,
688 "could not create tx DMA map\n");
689 goto fail;
690 }
691 SLIST_INSERT_HEAD(&sc->free_sbuf, sbuf, next);
692 }
693
694 /*
695 * Initialize tx ring.
696 */
697 for (i = 0; i < IPW_NTBD; i++) {
698 sbd = &sc->stbd_list[i];
699 sbd->bd = &sc->tbd_list[i];
700 sbd->type = IPW_SBD_TYPE_NOASSOC;
701 }
702
703 /*
704 * Pre-allocate rx buffers and DMA maps.
705 */
706 error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT,
707 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1, MCLBYTES, 0, NULL,
708 NULL, &sc->rxbuf_dmat);
709 if (error != 0) {
710 device_printf(sc->sc_dev, "could not create rx DMA tag\n");
711 goto fail;
712 }
713
714 for (i = 0; i < IPW_NRBD; i++) {
715 sbd = &sc->srbd_list[i];
716 sbuf = &sc->rx_sbuf_list[i];
717 sbd->bd = &sc->rbd_list[i];
718
719 sbuf->m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
720 if (sbuf->m == NULL) {
721 device_printf(sc->sc_dev,
722 "could not allocate rx mbuf\n");
723 error = ENOMEM;
724 goto fail;
725 }
726
727 error = bus_dmamap_create(sc->rxbuf_dmat, 0, &sbuf->map);
728 if (error != 0) {
729 device_printf(sc->sc_dev,
730 "could not create rx DMA map\n");
731 goto fail;
732 }
733
734 error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map,
735 mtod(sbuf->m, void *), MCLBYTES, ipw_dma_map_addr,
736 &physaddr, 0);
737 if (error != 0) {
738 device_printf(sc->sc_dev,
739 "could not map rx DMA memory\n");
740 goto fail;
741 }
742
743 sbd->type = IPW_SBD_TYPE_DATA;
744 sbd->priv = sbuf;
745 sbd->bd->physaddr = htole32(physaddr);
746 sbd->bd->len = htole32(MCLBYTES);
747 }
748
749 bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE);
750
751 return 0;
752
753fail: ipw_release(sc);
754 return error;
755}
756
757static void
758ipw_release(struct ipw_softc *sc)
759{
760 struct ipw_soft_buf *sbuf;
761 int i;
762
763 if (sc->tbd_dmat != NULL) {
764 if (sc->stbd_list != NULL) {
765 bus_dmamap_unload(sc->tbd_dmat, sc->tbd_map);
766 bus_dmamem_free(sc->tbd_dmat, sc->tbd_list,
767 sc->tbd_map);
768 }
769 bus_dma_tag_destroy(sc->tbd_dmat);
770 }
771
772 if (sc->rbd_dmat != NULL) {
773 if (sc->rbd_list != NULL) {
774 bus_dmamap_unload(sc->rbd_dmat, sc->rbd_map);
775 bus_dmamem_free(sc->rbd_dmat, sc->rbd_list,
776 sc->rbd_map);
777 }
778 bus_dma_tag_destroy(sc->rbd_dmat);
779 }
780
781 if (sc->status_dmat != NULL) {
782 if (sc->status_list != NULL) {
783 bus_dmamap_unload(sc->status_dmat, sc->status_map);
784 bus_dmamem_free(sc->status_dmat, sc->status_list,
785 sc->status_map);
786 }
787 bus_dma_tag_destroy(sc->status_dmat);
788 }
789
790 for (i = 0; i < IPW_NTBD; i++)
791 ipw_release_sbd(sc, &sc->stbd_list[i]);
792
793 if (sc->cmd_dmat != NULL) {
794 bus_dmamap_destroy(sc->cmd_dmat, sc->cmd_map);
795 bus_dma_tag_destroy(sc->cmd_dmat);
796 }
797
798 if (sc->hdr_dmat != NULL) {
799 for (i = 0; i < IPW_NDATA; i++)
800 bus_dmamap_destroy(sc->hdr_dmat, sc->shdr_list[i].map);
801 bus_dma_tag_destroy(sc->hdr_dmat);
802 }
803
804 if (sc->txbuf_dmat != NULL) {
805 for (i = 0; i < IPW_NDATA; i++) {
806 bus_dmamap_destroy(sc->txbuf_dmat,
807 sc->tx_sbuf_list[i].map);
808 }
809 bus_dma_tag_destroy(sc->txbuf_dmat);
810 }
811
812 if (sc->rxbuf_dmat != NULL) {
813 for (i = 0; i < IPW_NRBD; i++) {
814 sbuf = &sc->rx_sbuf_list[i];
815 if (sbuf->m != NULL) {
816 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map,
817 BUS_DMASYNC_POSTREAD);
818 bus_dmamap_unload(sc->rxbuf_dmat, sbuf->map);
819 m_freem(sbuf->m);
820 }
821 bus_dmamap_destroy(sc->rxbuf_dmat, sbuf->map);
822 }
823 bus_dma_tag_destroy(sc->rxbuf_dmat);
824 }
825}
826
827static int
828ipw_shutdown(device_t dev)
829{
830 struct ipw_softc *sc = device_get_softc(dev);
831
832 ipw_stop(sc);
833
834 return 0;
835}
836
837static int
838ipw_suspend(device_t dev)
839{
840 struct ipw_softc *sc = device_get_softc(dev);
841
842 ipw_stop(sc);
843
844 return 0;
845}
846
847static int
848ipw_resume(device_t dev)
849{
850 struct ipw_softc *sc = device_get_softc(dev);
851 struct ifnet *ifp = sc->sc_ifp;
852
853 pci_write_config(dev, 0x41, 0, 1);
854
855 if (ifp->if_flags & IFF_UP)
856 ipw_init(sc);
857
858 return 0;
859}
860
861static int
862ipw_cvtrate(int ipwrate)
863{
864 switch (ipwrate) {
865 case IPW_RATE_DS1: return 2;
866 case IPW_RATE_DS2: return 4;
867 case IPW_RATE_DS5: return 11;
868 case IPW_RATE_DS11: return 22;
869 }
870 return 0;
871}
872
873/*
874 * The firmware automatically adapts the transmit speed. We report its current
875 * value here.
876 */
877static void
878ipw_media_status(struct ifnet *ifp, struct ifmediareq *imr)
879{
880 struct ieee80211vap *vap = ifp->if_softc;
881 struct ieee80211com *ic = vap->iv_ic;
882 struct ipw_softc *sc = ic->ic_ifp->if_softc;
883
884 /* read current transmission rate from adapter */
885 vap->iv_bss->ni_txrate = ipw_cvtrate(
886 ipw_read_table1(sc, IPW_INFO_CURRENT_TX_RATE) & 0xf);
887 ieee80211_media_status(ifp, imr);
888}
889
890static int
891ipw_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
892{
893 struct ipw_vap *ivp = IPW_VAP(vap);
894 struct ieee80211com *ic = vap->iv_ic;
895 struct ifnet *ifp = ic->ic_ifp;
896 struct ipw_softc *sc = ifp->if_softc;
897
898 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__,
899 ieee80211_state_name[vap->iv_state],
900 ieee80211_state_name[nstate], sc->flags));
901
902 switch (nstate) {
903 case IEEE80211_S_RUN:
904 if (ic->ic_opmode == IEEE80211_M_IBSS) {
905 /*
906 * XXX when joining an ibss network we are called
907 * with a SCAN -> RUN transition on scan complete.
908 * Use that to call ipw_auth_and_assoc. On completing
909 * the join we are then called again with an
910 * AUTH -> RUN transition and we want to do nothing.
911 * This is all totally bogus and needs to be redone.
912 */
913 if (vap->iv_state == IEEE80211_S_SCAN) {
914 taskqueue_enqueue(taskqueue_swi,
915 &IPW_VAP(vap)->assoc_task);
916 return EINPROGRESS;
917 }
918 }
919 break;
920
921 case IEEE80211_S_INIT:
922 if (sc->flags & IPW_FLAG_ASSOCIATED)
923 taskqueue_enqueue(taskqueue_swi,
924 &IPW_VAP(vap)->disassoc_task);
925 break;
926
927 case IEEE80211_S_AUTH:
928 taskqueue_enqueue(taskqueue_swi, &IPW_VAP(vap)->assoc_task);
929 return EINPROGRESS;
930
931 case IEEE80211_S_ASSOC:
932 /*
933 * If we are not transitioning from AUTH the resend the
934 * association request.
935 */
936 if (vap->iv_state != IEEE80211_S_AUTH) {
937 taskqueue_enqueue(taskqueue_swi,
938 &IPW_VAP(vap)->assoc_task);
939 return EINPROGRESS;
940 }
941 break;
942
943 default:
944 break;
945 }
946 return ivp->newstate(vap, nstate, arg);
947}
948
949/*
950 * Read 16 bits at address 'addr' from the serial EEPROM.
951 */
952static uint16_t
953ipw_read_prom_word(struct ipw_softc *sc, uint8_t addr)
954{
955 uint32_t tmp;
956 uint16_t val;
957 int n;
958
959 /* clock C once before the first command */
960 IPW_EEPROM_CTL(sc, 0);
961 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
962 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C);
963 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
964
965 /* write start bit (1) */
966 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D);
967 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D | IPW_EEPROM_C);
968
969 /* write READ opcode (10) */
970 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D);
971 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D | IPW_EEPROM_C);
972 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
973 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C);
974
975 /* write address A7-A0 */
976 for (n = 7; n >= 0; n--) {
977 IPW_EEPROM_CTL(sc, IPW_EEPROM_S |
978 (((addr >> n) & 1) << IPW_EEPROM_SHIFT_D));
979 IPW_EEPROM_CTL(sc, IPW_EEPROM_S |
980 (((addr >> n) & 1) << IPW_EEPROM_SHIFT_D) | IPW_EEPROM_C);
981 }
982
983 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
984
985 /* read data Q15-Q0 */
986 val = 0;
987 for (n = 15; n >= 0; n--) {
988 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C);
989 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
990 tmp = MEM_READ_4(sc, IPW_MEM_EEPROM_CTL);
991 val |= ((tmp & IPW_EEPROM_Q) >> IPW_EEPROM_SHIFT_Q) << n;
992 }
993
994 IPW_EEPROM_CTL(sc, 0);
995
996 /* clear Chip Select and clock C */
997 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
998 IPW_EEPROM_CTL(sc, 0);
999 IPW_EEPROM_CTL(sc, IPW_EEPROM_C);
1000
1001 return le16toh(val);
1002}
1003
1004static void
1005ipw_rx_cmd_intr(struct ipw_softc *sc, struct ipw_soft_buf *sbuf)
1006{
1007 struct ipw_cmd *cmd;
1008
1009 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD);
1010
1011 cmd = mtod(sbuf->m, struct ipw_cmd *);
1012
1013 DPRINTFN(9, ("cmd ack'ed %s(%u, %u, %u, %u, %u)\n",
1014 ipw_cmdname(le32toh(cmd->type)), le32toh(cmd->type),
1015 le32toh(cmd->subtype), le32toh(cmd->seq), le32toh(cmd->len),
1016 le32toh(cmd->status)));
1017
1018 sc->flags &= ~IPW_FLAG_BUSY;
1019 wakeup(sc);
1020}
1021
1022static void
1023ipw_assocsuccess(void *arg, int npending)
1024{
1025 struct ieee80211vap *vap = arg;
1026
1027 ieee80211_new_state(vap, IEEE80211_S_RUN, -1);
1028}
1029
1030static void
1031ipw_assocfailed(void *arg, int npending)
1032{
1033 struct ieee80211vap *vap = arg;
1034
1035 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1);
1036}
1037
1038static void
1039ipw_scandone(void *arg, int npending)
1040{
1041 struct ieee80211vap *vap = arg;
1042
1043 ieee80211_scan_done(vap);
1044}
1045
1046static void
1047ipw_bmiss(void *arg, int npending)
1048{
1049 struct ieee80211com *ic = arg;
1050
1051 ieee80211_beacon_miss(ic);
1052}
1053
1054static void
1055ipw_rx_newstate_intr(struct ipw_softc *sc, struct ipw_soft_buf *sbuf)
1056{
1057#define IEEESTATE(vap) ieee80211_state_name[vap->iv_state]
1058 struct ifnet *ifp = sc->sc_ifp;
1059 struct ieee80211com *ic = ifp->if_l2com;
1060 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1061 uint32_t state;
1062
1063 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD);
1064
1065 state = le32toh(*mtod(sbuf->m, uint32_t *));
1066
1067 switch (state) {
1068 case IPW_STATE_ASSOCIATED:
1069 DPRINTFN(2, ("Association succeeded (%s flags 0x%x)\n",
1070 IEEESTATE(vap), sc->flags));
1071 /* XXX suppress state change in case the fw auto-associates */
1072 if ((sc->flags & IPW_FLAG_ASSOCIATING) == 0) {
1073 DPRINTF(("Unexpected association (%s, flags 0x%x)\n",
1074 IEEESTATE(vap), sc->flags));
1075 break;
1076 }
1077 sc->flags &= ~IPW_FLAG_ASSOCIATING;
1078 sc->flags |= IPW_FLAG_ASSOCIATED;
1079 taskqueue_enqueue(taskqueue_swi,
1080 &IPW_VAP(vap)->assoc_success_task);
1081 break;
1082
1083 case IPW_STATE_SCANNING:
1084 DPRINTFN(3, ("Scanning (%s flags 0x%x)\n",
1085 IEEESTATE(vap), sc->flags));
1086 /*
1087 * NB: Check driver state for association on assoc
1088 * loss as the firmware will immediately start to
1089 * scan and we would treat it as a beacon miss if
1090 * we checked the 802.11 layer state.
1091 */
1092 if (sc->flags & IPW_FLAG_ASSOCIATED) {
1093 /* XXX probably need to issue disassoc to fw */
1094 taskqueue_enqueue(taskqueue_swi, &sc->sc_bmiss_task);
1095 }
1096 break;
1097
1098 case IPW_STATE_SCAN_COMPLETE:
1099 /*
1100 * XXX For some reason scan requests generate scan
1101 * started + scan done events before any traffic is
1102 * received (e.g. probe response frames). We work
1103 * around this by marking the HACK flag and skipping
1104 * the first scan complete event.
1105 */
1106 DPRINTFN(3, ("Scan complete (%s flags 0x%x)\n",
1107 IEEESTATE(vap), sc->flags));
1108 if (sc->flags & IPW_FLAG_HACK) {
1109 sc->flags &= ~IPW_FLAG_HACK;
1110 break;
1111 }
1112 if (sc->flags & IPW_FLAG_SCANNING) {
1113 taskqueue_enqueue(taskqueue_swi,
1114 &IPW_VAP(vap)->scandone_task);
1115 sc->flags &= ~IPW_FLAG_SCANNING;
1116 sc->sc_scan_timer = 0;
1117 }
1118 break;
1119
1120 case IPW_STATE_ASSOCIATION_LOST:
1121 DPRINTFN(2, ("Association lost (%s flags 0x%x)\n",
1122 IEEESTATE(vap), sc->flags));
1123 sc->flags &= ~(IPW_FLAG_ASSOCIATING | IPW_FLAG_ASSOCIATED);
1124 if (vap->iv_state == IEEE80211_S_RUN)
1125 taskqueue_enqueue(taskqueue_swi,
1126 &IPW_VAP(vap)->assoc_failed_task);
1127 break;
1128
1129 case IPW_STATE_DISABLED:
1130 /* XXX? is this right? */
1131 sc->flags &= ~(IPW_FLAG_HACK | IPW_FLAG_SCANNING |
1132 IPW_FLAG_ASSOCIATING | IPW_FLAG_ASSOCIATED);
1133 DPRINTFN(2, ("Firmware disabled (%s flags 0x%x)\n",
1134 IEEESTATE(vap), sc->flags));
1135 break;
1136
1137 case IPW_STATE_RADIO_DISABLED:
1138 device_printf(sc->sc_dev, "radio turned off\n");
1139 ieee80211_notify_radio(ic, 0);
1140 ipw_stop_locked(sc);
1141 /* XXX start polling thread to detect radio on */
1142 break;
1143
1144 default:
1145 DPRINTFN(2, ("%s: unhandled state %u %s flags 0x%x\n",
1146 __func__, state, IEEESTATE(vap), sc->flags));
1147 break;
1148 }
1149#undef IEEESTATE
1150}
1151
1152/*
1153 * Set driver state for current channel.
1154 */
1155static void
1156ipw_setcurchan(struct ipw_softc *sc, struct ieee80211_channel *chan)
1157{
1158 struct ifnet *ifp = sc->sc_ifp;
1159 struct ieee80211com *ic = ifp->if_l2com;
1160
1161 ic->ic_curchan = chan;
1162 sc->sc_rxtap.wr_chan_freq = sc->sc_txtap.wt_chan_freq =
1163 htole16(ic->ic_curchan->ic_freq);
1164 sc->sc_rxtap.wr_chan_flags = sc->sc_txtap.wt_chan_flags =
1165 htole16(ic->ic_curchan->ic_flags);
1166}
1167
1168/*
1169 * XXX: Hack to set the current channel to the value advertised in beacons or
1170 * probe responses. Only used during AP detection.
1171 */
1172static void
1173ipw_fix_channel(struct ipw_softc *sc, struct mbuf *m)
1174{
1175 struct ifnet *ifp = sc->sc_ifp;
1176 struct ieee80211com *ic = ifp->if_l2com;
1177 struct ieee80211_channel *c;
1178 struct ieee80211_frame *wh;
1179 uint8_t subtype;
1180 uint8_t *frm, *efrm;
1181
1182 wh = mtod(m, struct ieee80211_frame *);
1183
1184 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
1185 return;
1186
1187 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
1188
1189 if (subtype != IEEE80211_FC0_SUBTYPE_BEACON &&
1190 subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP)
1191 return;
1192
1193 /* XXX use ieee80211_parse_beacon */
1194 frm = (uint8_t *)(wh + 1);
1195 efrm = mtod(m, uint8_t *) + m->m_len;
1196
1197 frm += 12; /* skip tstamp, bintval and capinfo fields */
1198 while (frm < efrm) {
1199 if (*frm == IEEE80211_ELEMID_DSPARMS)
1200#if IEEE80211_CHAN_MAX < 255
1201 if (frm[2] <= IEEE80211_CHAN_MAX)
1202#endif
1203 {
1204 DPRINTF(("Fixing channel to %d\n", frm[2]));
1205 c = ieee80211_find_channel(ic,
1206 ieee80211_ieee2mhz(frm[2], 0),
1207 IEEE80211_CHAN_B);
1208 if (c == NULL)
1209 c = &ic->ic_channels[0];
1210 ipw_setcurchan(sc, c);
1211 }
1212
1213 frm += frm[1] + 2;
1214 }
1215}
1216
1217static void
1218ipw_rx_data_intr(struct ipw_softc *sc, struct ipw_status *status,
1219 struct ipw_soft_bd *sbd, struct ipw_soft_buf *sbuf)
1220{
1221 struct ifnet *ifp = sc->sc_ifp;
1222 struct ieee80211com *ic = ifp->if_l2com;
1223 struct mbuf *mnew, *m;
1224 struct ieee80211_node *ni;
1225 bus_addr_t physaddr;
1226 int error;
1227 IPW_LOCK_DECL;
1228
1229 DPRINTFN(5, ("received frame len=%u, rssi=%u\n", le32toh(status->len),
1230 status->rssi));
1231
1232 if (le32toh(status->len) < sizeof (struct ieee80211_frame_min) ||
1233 le32toh(status->len) > MCLBYTES)
1234 return;
1235
1236 /*
1237 * Try to allocate a new mbuf for this ring element and load it before
1238 * processing the current mbuf. If the ring element cannot be loaded,
1239 * drop the received packet and reuse the old mbuf. In the unlikely
1240 * case that the old mbuf can't be reloaded either, explicitly panic.
1241 */
1242 mnew = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
1243 if (mnew == NULL) {
1244 ifp->if_ierrors++;
1245 return;
1246 }
1247
1248 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD);
1249 bus_dmamap_unload(sc->rxbuf_dmat, sbuf->map);
1250
1251 error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map, mtod(mnew, void *),
1252 MCLBYTES, ipw_dma_map_addr, &physaddr, 0);
1253 if (error != 0) {
1254 m_freem(mnew);
1255
1256 /* try to reload the old mbuf */
1257 error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map,
1258 mtod(sbuf->m, void *), MCLBYTES, ipw_dma_map_addr,
1259 &physaddr, 0);
1260 if (error != 0) {
1261 /* very unlikely that it will fail... */
1262 panic("%s: could not load old rx mbuf",
1263 device_get_name(sc->sc_dev));
1264 }
1265 ifp->if_ierrors++;
1266 return;
1267 }
1268
1269 /*
1270 * New mbuf successfully loaded, update Rx ring and continue
1271 * processing.
1272 */
1273 m = sbuf->m;
1274 sbuf->m = mnew;
1275 sbd->bd->physaddr = htole32(physaddr);
1276
1277 /* finalize mbuf */
1278 m->m_pkthdr.rcvif = ifp;
1279 m->m_pkthdr.len = m->m_len = le32toh(status->len);
1280
1281 if (bpf_peers_present(ifp->if_bpf)) {
1282 struct ipw_rx_radiotap_header *tap = &sc->sc_rxtap;
1283
1284 tap->wr_flags = 0;
1285 tap->wr_antsignal = status->rssi + IPW_RSSI_TO_DBM;
1286 tap->wr_chan_freq = htole16(ic->ic_curchan->ic_freq);
1287 tap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags);
1288
1289 bpf_mtap2(ifp->if_bpf, tap, sc->sc_rxtap_len, m);
1290 }
1291
1292 if (sc->flags & IPW_FLAG_SCANNING)
1293 ipw_fix_channel(sc, m);
1294
1295 IPW_UNLOCK(sc);
1296 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *));
1297 if (ni != NULL) {
1298 (void) ieee80211_input(ni, m, status->rssi, -95, 0);
1299 ieee80211_free_node(ni);
1300 } else
1301 (void) ieee80211_input_all(ic, m, status->rssi, -95, 0);
1302 IPW_LOCK(sc);
1303
1304 bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE);
1305}
1306
1307static void
1308ipw_rx_intr(struct ipw_softc *sc)
1309{
1310 struct ipw_status *status;
1311 struct ipw_soft_bd *sbd;
1312 struct ipw_soft_buf *sbuf;
1313 uint32_t r, i;
1314
1315 if (!(sc->flags & IPW_FLAG_FW_INITED))
1316 return;
1317
1318 r = CSR_READ_4(sc, IPW_CSR_RX_READ);
1319
1320 bus_dmamap_sync(sc->status_dmat, sc->status_map, BUS_DMASYNC_POSTREAD);
1321
1322 for (i = (sc->rxcur + 1) % IPW_NRBD; i != r; i = (i + 1) % IPW_NRBD) {
1323 status = &sc->status_list[i];
1324 sbd = &sc->srbd_list[i];
1325 sbuf = sbd->priv;
1326
1327 switch (le16toh(status->code) & 0xf) {
1328 case IPW_STATUS_CODE_COMMAND:
1329 ipw_rx_cmd_intr(sc, sbuf);
1330 break;
1331
1332 case IPW_STATUS_CODE_NEWSTATE:
1333 ipw_rx_newstate_intr(sc, sbuf);
1334 break;
1335
1336 case IPW_STATUS_CODE_DATA_802_3:
1337 case IPW_STATUS_CODE_DATA_802_11:
1338 ipw_rx_data_intr(sc, status, sbd, sbuf);
1339 break;
1340
1341 case IPW_STATUS_CODE_NOTIFICATION:
1342 DPRINTFN(2, ("notification status, len %u flags 0x%x\n",
1343 le32toh(status->len), status->flags));
1344 /* XXX maybe drive state machine AUTH->ASSOC? */
1345 break;
1346
1347 default:
1348 device_printf(sc->sc_dev, "unexpected status code %u\n",
1349 le16toh(status->code));
1350 }
1351
1352 /* firmware was killed, stop processing received frames */
1353 if (!(sc->flags & IPW_FLAG_FW_INITED))
1354 return;
1355
1356 sbd->bd->flags = 0;
1357 }
1358
1359 bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE);
1360
1361 /* kick the firmware */
1362 sc->rxcur = (r == 0) ? IPW_NRBD - 1 : r - 1;
1363 CSR_WRITE_4(sc, IPW_CSR_RX_WRITE, sc->rxcur);
1364}
1365
1366static void
1367ipw_release_sbd(struct ipw_softc *sc, struct ipw_soft_bd *sbd)
1368{
1369 struct ipw_soft_hdr *shdr;
1370 struct ipw_soft_buf *sbuf;
1371
1372 switch (sbd->type) {
1373 case IPW_SBD_TYPE_COMMAND:
1374 bus_dmamap_sync(sc->cmd_dmat, sc->cmd_map,
1375 BUS_DMASYNC_POSTWRITE);
1376 bus_dmamap_unload(sc->cmd_dmat, sc->cmd_map);
1377 break;
1378
1379 case IPW_SBD_TYPE_HEADER:
1380 shdr = sbd->priv;
1381 bus_dmamap_sync(sc->hdr_dmat, shdr->map, BUS_DMASYNC_POSTWRITE);
1382 bus_dmamap_unload(sc->hdr_dmat, shdr->map);
1383 SLIST_INSERT_HEAD(&sc->free_shdr, shdr, next);
1384 break;
1385
1386 case IPW_SBD_TYPE_DATA:
1387 sbuf = sbd->priv;
1388 bus_dmamap_sync(sc->txbuf_dmat, sbuf->map,
1389 BUS_DMASYNC_POSTWRITE);
1390 bus_dmamap_unload(sc->txbuf_dmat, sbuf->map);
1391 SLIST_INSERT_HEAD(&sc->free_sbuf, sbuf, next);
1392
1393 if (sbuf->m->m_flags & M_TXCB)
1394 ieee80211_process_callback(sbuf->ni, sbuf->m, 0/*XXX*/);
1395 m_freem(sbuf->m);
1396 ieee80211_free_node(sbuf->ni);
1397
1398 sc->sc_tx_timer = 0;
1399 break;
1400 }
1401
1402 sbd->type = IPW_SBD_TYPE_NOASSOC;
1403}
1404
1405static void
1406ipw_tx_intr(struct ipw_softc *sc)
1407{
1408 struct ifnet *ifp = sc->sc_ifp;
1409 struct ipw_soft_bd *sbd;
1410 uint32_t r, i;
1411
1412 if (!(sc->flags & IPW_FLAG_FW_INITED))
1413 return;
1414
1415 r = CSR_READ_4(sc, IPW_CSR_TX_READ);
1416
1417 for (i = (sc->txold + 1) % IPW_NTBD; i != r; i = (i + 1) % IPW_NTBD) {
1418 sbd = &sc->stbd_list[i];
1419
1420 if (sbd->type == IPW_SBD_TYPE_DATA)
1421 ifp->if_opackets++;
1422
1423 ipw_release_sbd(sc, sbd);
1424 sc->txfree++;
1425 }
1426
1427 /* remember what the firmware has processed */
1428 sc->txold = (r == 0) ? IPW_NTBD - 1 : r - 1;
1429
1430 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1431 ipw_start_locked(ifp);
1432}
1433
1434static void
1435ipw_intr(void *arg)
1436{
1437 struct ipw_softc *sc = arg;
1438 uint32_t r;
1439 IPW_LOCK_DECL;
1440
1441 IPW_LOCK(sc);
1442
1443 if ((r = CSR_READ_4(sc, IPW_CSR_INTR)) == 0 || r == 0xffffffff) {
1444 IPW_UNLOCK(sc);
1445 return;
1446 }
1447
1448 /* disable interrupts */
1449 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0);
1450
1451 /* acknowledge all interrupts */
1452 CSR_WRITE_4(sc, IPW_CSR_INTR, r);
1453
1454 if (r & (IPW_INTR_FATAL_ERROR | IPW_INTR_PARITY_ERROR)) {
1455 device_printf(sc->sc_dev, "firmware error\n");
1456 taskqueue_enqueue(taskqueue_swi, &sc->sc_init_task);
1457 r = 0; /* don't process more interrupts */
1458 }
1459
1460 if (r & IPW_INTR_FW_INIT_DONE)
1461 wakeup(sc);
1462
1463 if (r & IPW_INTR_RX_TRANSFER)
1464 ipw_rx_intr(sc);
1465
1466 if (r & IPW_INTR_TX_TRANSFER)
1467 ipw_tx_intr(sc);
1468
1469 /* re-enable interrupts */
1470 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, IPW_INTR_MASK);
1471
1472 IPW_UNLOCK(sc);
1473}
1474
1475static void
1476ipw_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1477{
1478 if (error != 0)
1479 return;
1480
1481 KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
1482
1483 *(bus_addr_t *)arg = segs[0].ds_addr;
1484}
1485
1486static const char *
1487ipw_cmdname(int cmd)
1488{
1489#define N(a) (sizeof(a) / sizeof(a[0]))
1490 static const struct {
1491 int cmd;
1492 const char *name;
1493 } cmds[] = {
1494 { IPW_CMD_ADD_MULTICAST, "ADD_MULTICAST" },
1495 { IPW_CMD_BROADCAST_SCAN, "BROADCAST_SCAN" },
1496 { IPW_CMD_DISABLE, "DISABLE" },
1497 { IPW_CMD_DISABLE_PHY, "DISABLE_PHY" },
1498 { IPW_CMD_ENABLE, "ENABLE" },
1499 { IPW_CMD_PREPARE_POWER_DOWN, "PREPARE_POWER_DOWN" },
1500 { IPW_CMD_SET_BASIC_TX_RATES, "SET_BASIC_TX_RATES" },
1501 { IPW_CMD_SET_BEACON_INTERVAL, "SET_BEACON_INTERVAL" },
1502 { IPW_CMD_SET_CHANNEL, "SET_CHANNEL" },
1503 { IPW_CMD_SET_CONFIGURATION, "SET_CONFIGURATION" },
1504 { IPW_CMD_SET_DESIRED_BSSID, "SET_DESIRED_BSSID" },
1505 { IPW_CMD_SET_ESSID, "SET_ESSID" },
1506 { IPW_CMD_SET_FRAG_THRESHOLD, "SET_FRAG_THRESHOLD" },
1507 { IPW_CMD_SET_MAC_ADDRESS, "SET_MAC_ADDRESS" },
1508 { IPW_CMD_SET_MANDATORY_BSSID, "SET_MANDATORY_BSSID" },
1509 { IPW_CMD_SET_MODE, "SET_MODE" },
1510 { IPW_CMD_SET_MSDU_TX_RATES, "SET_MSDU_TX_RATES" },
1511 { IPW_CMD_SET_POWER_MODE, "SET_POWER_MODE" },
1512 { IPW_CMD_SET_RTS_THRESHOLD, "SET_RTS_THRESHOLD" },
1513 { IPW_CMD_SET_SCAN_OPTIONS, "SET_SCAN_OPTIONS" },
1514 { IPW_CMD_SET_SECURITY_INFO, "SET_SECURITY_INFO" },
1515 { IPW_CMD_SET_TX_POWER_INDEX, "SET_TX_POWER_INDEX" },
1516 { IPW_CMD_SET_TX_RATES, "SET_TX_RATES" },
1517 { IPW_CMD_SET_WEP_FLAGS, "SET_WEP_FLAGS" },
1518 { IPW_CMD_SET_WEP_KEY, "SET_WEP_KEY" },
1519 { IPW_CMD_SET_WEP_KEY_INDEX, "SET_WEP_KEY_INDEX" },
1520 { IPW_CMD_SET_WPA_IE, "SET_WPA_IE" },
1521
1522 };
1523 static char buf[12];
1524 int i;
1525
1526 for (i = 0; i < N(cmds); i++)
1527 if (cmds[i].cmd == cmd)
1528 return cmds[i].name;
1529 snprintf(buf, sizeof(buf), "%u", cmd);
1530 return buf;
1531#undef N
1532}
1533
1534/*
1535 * Send a command to the firmware and wait for the acknowledgement.
1536 */
1537static int
1538ipw_cmd(struct ipw_softc *sc, uint32_t type, void *data, uint32_t len)
1539{
1540 struct ipw_soft_bd *sbd;
1541 bus_addr_t physaddr;
1542 int error;
1543
1544 IPW_LOCK_ASSERT(sc);
1545
1546 if (sc->flags & IPW_FLAG_BUSY) {
1547 device_printf(sc->sc_dev, "%s: %s not sent, busy\n",
1548 __func__, ipw_cmdname(type));
1549 return EAGAIN;
1550 }
1551 sc->flags |= IPW_FLAG_BUSY;
1552
1553 sbd = &sc->stbd_list[sc->txcur];
1554
1555 error = bus_dmamap_load(sc->cmd_dmat, sc->cmd_map, &sc->cmd,
1556 sizeof (struct ipw_cmd), ipw_dma_map_addr, &physaddr, 0);
1557 if (error != 0) {
1558 device_printf(sc->sc_dev, "could not map command DMA memory\n");
1559 sc->flags &= ~IPW_FLAG_BUSY;
1560 return error;
1561 }
1562
1563 sc->cmd.type = htole32(type);
1564 sc->cmd.subtype = 0;
1565 sc->cmd.len = htole32(len);
1566 sc->cmd.seq = 0;
1567 memcpy(sc->cmd.data, data, len);
1568
1569 sbd->type = IPW_SBD_TYPE_COMMAND;
1570 sbd->bd->physaddr = htole32(physaddr);
1571 sbd->bd->len = htole32(sizeof (struct ipw_cmd));
1572 sbd->bd->nfrag = 1;
1573 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_COMMAND |
1574 IPW_BD_FLAG_TX_LAST_FRAGMENT;
1575
1576 bus_dmamap_sync(sc->cmd_dmat, sc->cmd_map, BUS_DMASYNC_PREWRITE);
1577 bus_dmamap_sync(sc->tbd_dmat, sc->tbd_map, BUS_DMASYNC_PREWRITE);
1578
1579#ifdef IPW_DEBUG
1580 if (ipw_debug >= 4) {
1581 printf("sending %s(%u, %u, %u, %u)", ipw_cmdname(type), type,
1582 0, 0, len);
1583 /* Print the data buffer in the higher debug level */
1584 if (ipw_debug >= 9 && len > 0) {
1585 printf(" data: 0x");
1586 for (int i = 1; i <= len; i++)
1587 printf("%1D", (u_char *)data + len - i, "");
1588 }
1589 printf("\n");
1590 }
1591#endif
1592
1593 /* kick firmware */
1594 sc->txfree--;
1595 sc->txcur = (sc->txcur + 1) % IPW_NTBD;
1596 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur);
1597
1598 /* wait at most one second for command to complete */
1599 error = msleep(sc, &sc->sc_mtx, 0, "ipwcmd", hz);
1600 if (error != 0) {
1601 device_printf(sc->sc_dev, "%s: %s failed, timeout (error %u)\n",
1602 __func__, ipw_cmdname(type), error);
1603 sc->flags &= ~IPW_FLAG_BUSY;
1604 return (error);
1605 }
1606 return (0);
1607}
1608
1609static int
1610ipw_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni)
1611{
1612 struct ipw_softc *sc = ifp->if_softc;
1613 struct ieee80211com *ic = ifp->if_l2com;
1614 struct ieee80211_frame *wh;
1615 struct ipw_soft_bd *sbd;
1616 struct ipw_soft_hdr *shdr;
1617 struct ipw_soft_buf *sbuf;
1618 struct ieee80211_key *k;
1619 struct mbuf *mnew;
1620 bus_dma_segment_t segs[IPW_MAX_NSEG];
1621 bus_addr_t physaddr;
1622 int nsegs, error, i;
1623
1624 wh = mtod(m0, struct ieee80211_frame *);
1625
1626 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1627 k = ieee80211_crypto_encap(ni, m0);
1628 if (k == NULL) {
1629 m_freem(m0);
1630 return ENOBUFS;
1631 }
1632 /* packet header may have moved, reset our local pointer */
1633 wh = mtod(m0, struct ieee80211_frame *);
1634 }
1635
1636 if (bpf_peers_present(ifp->if_bpf)) {
1637 struct ipw_tx_radiotap_header *tap = &sc->sc_txtap;
1638
1639 tap->wt_flags = 0;
1640 tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq);
1641 tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags);
1642
1643 bpf_mtap2(ifp->if_bpf, tap, sc->sc_txtap_len, m0);
1644 }
1645
1646 shdr = SLIST_FIRST(&sc->free_shdr);
1647 sbuf = SLIST_FIRST(&sc->free_sbuf);
1648 KASSERT(shdr != NULL && sbuf != NULL, ("empty sw hdr/buf pool"));
1649
1650 shdr->hdr.type = htole32(IPW_HDR_TYPE_SEND);
1651 shdr->hdr.subtype = 0;
1652 shdr->hdr.encrypted = (wh->i_fc[1] & IEEE80211_FC1_WEP) ? 1 : 0;
1653 shdr->hdr.encrypt = 0;
1654 shdr->hdr.keyidx = 0;
1655 shdr->hdr.keysz = 0;
1656 shdr->hdr.fragmentsz = 0;
1657 IEEE80211_ADDR_COPY(shdr->hdr.src_addr, wh->i_addr2);
1658 if (ic->ic_opmode == IEEE80211_M_STA)
1659 IEEE80211_ADDR_COPY(shdr->hdr.dst_addr, wh->i_addr3);
1660 else
1661 IEEE80211_ADDR_COPY(shdr->hdr.dst_addr, wh->i_addr1);
1662
1663 /* trim IEEE802.11 header */
1664 m_adj(m0, sizeof (struct ieee80211_frame));
1665
1666 error = bus_dmamap_load_mbuf_sg(sc->txbuf_dmat, sbuf->map, m0, segs,
1667 &nsegs, 0);
1668 if (error != 0 && error != EFBIG) {
1669 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1670 error);
1671 m_freem(m0);
1672 return error;
1673 }
1674 if (error != 0) {
1675 mnew = m_defrag(m0, M_DONTWAIT);
1676 if (mnew == NULL) {
1677 device_printf(sc->sc_dev,
1678 "could not defragment mbuf\n");
1679 m_freem(m0);
1680 return ENOBUFS;
1681 }
1682 m0 = mnew;
1683
1684 error = bus_dmamap_load_mbuf_sg(sc->txbuf_dmat, sbuf->map, m0,
1685 segs, &nsegs, 0);
1686 if (error != 0) {
1687 device_printf(sc->sc_dev,
1688 "could not map mbuf (error %d)\n", error);
1689 m_freem(m0);
1690 return error;
1691 }
1692 }
1693
1694 error = bus_dmamap_load(sc->hdr_dmat, shdr->map, &shdr->hdr,
1695 sizeof (struct ipw_hdr), ipw_dma_map_addr, &physaddr, 0);
1696 if (error != 0) {
1697 device_printf(sc->sc_dev, "could not map header DMA memory\n");
1698 bus_dmamap_unload(sc->txbuf_dmat, sbuf->map);
1699 m_freem(m0);
1700 return error;
1701 }
1702
1703 SLIST_REMOVE_HEAD(&sc->free_sbuf, next);
1704 SLIST_REMOVE_HEAD(&sc->free_shdr, next);
1705
1706 sbd = &sc->stbd_list[sc->txcur];
1707 sbd->type = IPW_SBD_TYPE_HEADER;
1708 sbd->priv = shdr;
1709 sbd->bd->physaddr = htole32(physaddr);
1710 sbd->bd->len = htole32(sizeof (struct ipw_hdr));
1711 sbd->bd->nfrag = 1 + nsegs;
1712 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_802_3 |
1713 IPW_BD_FLAG_TX_NOT_LAST_FRAGMENT;
1714
1715 DPRINTFN(5, ("sending tx hdr (%u, %u, %u, %u, %6D, %6D)\n",
1716 shdr->hdr.type, shdr->hdr.subtype, shdr->hdr.encrypted,
1717 shdr->hdr.encrypt, shdr->hdr.src_addr, ":", shdr->hdr.dst_addr,
1718 ":"));
1719
1720 sc->txfree--;
1721 sc->txcur = (sc->txcur + 1) % IPW_NTBD;
1722
1723 sbuf->m = m0;
1724 sbuf->ni = ni;
1725
1726 for (i = 0; i < nsegs; i++) {
1727 sbd = &sc->stbd_list[sc->txcur];
1728
1729 sbd->bd->physaddr = htole32(segs[i].ds_addr);
1730 sbd->bd->len = htole32(segs[i].ds_len);
1731 sbd->bd->nfrag = 0;
1732 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_802_3;
1733 if (i == nsegs - 1) {
1734 sbd->type = IPW_SBD_TYPE_DATA;
1735 sbd->priv = sbuf;
1736 sbd->bd->flags |= IPW_BD_FLAG_TX_LAST_FRAGMENT;
1737 } else {
1738 sbd->type = IPW_SBD_TYPE_NOASSOC;
1739 sbd->bd->flags |= IPW_BD_FLAG_TX_NOT_LAST_FRAGMENT;
1740 }
1741
1742 DPRINTFN(5, ("sending fragment (%d)\n", i));
1743
1744 sc->txfree--;
1745 sc->txcur = (sc->txcur + 1) % IPW_NTBD;
1746 }
1747
1748 bus_dmamap_sync(sc->hdr_dmat, shdr->map, BUS_DMASYNC_PREWRITE);
1749 bus_dmamap_sync(sc->txbuf_dmat, sbuf->map, BUS_DMASYNC_PREWRITE);
1750 bus_dmamap_sync(sc->tbd_dmat, sc->tbd_map, BUS_DMASYNC_PREWRITE);
1751
1752 /* kick firmware */
1753 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur);
1754
1755 return 0;
1756}
1757
1758static int
1759ipw_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
1760 const struct ieee80211_bpf_params *params)
1761{
1762 /* no support; just discard */
1763 m_freem(m);
1764 ieee80211_free_node(ni);
1765 return 0;
1766}
1767
1768static void
1769ipw_start(struct ifnet *ifp)
1770{
1771 struct ipw_softc *sc = ifp->if_softc;
1772 IPW_LOCK_DECL;
1773
1774 IPW_LOCK(sc);
1775 ipw_start_locked(ifp);
1776 IPW_UNLOCK(sc);
1777}
1778
1779static void
1780ipw_start_locked(struct ifnet *ifp)
1781{
1782 struct ipw_softc *sc = ifp->if_softc;
1783 struct ieee80211_node *ni;
1784 struct mbuf *m;
1785
1786 IPW_LOCK_ASSERT(sc);
1787
1788 for (;;) {
1789 IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
1790 if (m == NULL)
1791 break;
1792 if (sc->txfree < 1 + IPW_MAX_NSEG) {
1793 IFQ_DRV_PREPEND(&ifp->if_snd, m);
1794 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1795 break;
1796 }
1797 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1798 m = ieee80211_encap(ni, m);
1799 if (m == NULL) {
1800 ieee80211_free_node(ni);
1801 continue;
1802 }
1803 if (ipw_tx_start(ifp, m, ni) != 0) {
1804 ieee80211_free_node(ni);
1805 ifp->if_oerrors++;
1806 break;
1807 }
1808 /* start watchdog timer */
1809 sc->sc_tx_timer = 5;
1810 }
1811}
1812
1813static void
1814ipw_watchdog(void *arg)
1815{
1816 struct ipw_softc *sc = arg;
1817 struct ifnet *ifp = sc->sc_ifp;
1818 struct ieee80211com *ic = ifp->if_l2com;
1819
1820 IPW_LOCK_ASSERT(sc);
1821
1822 if (sc->sc_tx_timer > 0) {
1823 if (--sc->sc_tx_timer == 0) {
1824 if_printf(ifp, "device timeout\n");
1825 ifp->if_oerrors++;
1826 taskqueue_enqueue(taskqueue_swi, &sc->sc_init_task);
1827 }
1828 }
1829 if (sc->sc_scan_timer > 0) {
1830 if (--sc->sc_scan_timer == 0) {
1831 DPRINTFN(3, ("Scan timeout\n"));
1832 /* End the scan */
1833 if (sc->flags & IPW_FLAG_SCANNING) {
1834 ieee80211_scan_done(TAILQ_FIRST(&ic->ic_vaps));
1835 sc->flags &= ~IPW_FLAG_SCANNING;
1836 }
1837 }
1838 }
1839 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1840 callout_reset(&sc->sc_wdtimer, hz, ipw_watchdog, sc);
1841}
1842
1843static int
1844ipw_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
1845{
1846 struct ipw_softc *sc = ifp->if_softc;
1847 struct ieee80211com *ic = ifp->if_l2com;
1848 struct ifreq *ifr = (struct ifreq *) data;
1849 int error = 0, startall = 0;
1850 IPW_LOCK_DECL;
1851
1852 switch (cmd) {
1853 case SIOCSIFFLAGS:
1854 IPW_LOCK(sc);
1855 if (ifp->if_flags & IFF_UP) {
1856 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
1857 ipw_init_locked(sc);
1858 startall = 1;
1859 }
1860 } else {
1861 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1862 ipw_stop_locked(sc);
1863 }
1864 IPW_UNLOCK(sc);
1865 if (startall)
1866 ieee80211_start_all(ic);
1867 break;
1868 case SIOCGIFMEDIA:
1869 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
1870 break;
1871 case SIOCGIFADDR:
1872 error = ether_ioctl(ifp, cmd, data);
1873 break;
1874 default:
1875 error = EINVAL;
1876 break;
1877 }
1878 return error;
1879}
1880
1881static void
1882ipw_stop_master(struct ipw_softc *sc)
1883{
1884 uint32_t tmp;
1885 int ntries;
1886
1887 /* disable interrupts */
1888 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0);
1889
1890 CSR_WRITE_4(sc, IPW_CSR_RST, IPW_RST_STOP_MASTER);
1891 for (ntries = 0; ntries < 50; ntries++) {
1892 if (CSR_READ_4(sc, IPW_CSR_RST) & IPW_RST_MASTER_DISABLED)
1893 break;
1894 DELAY(10);
1895 }
1896 if (ntries == 50)
1897 device_printf(sc->sc_dev, "timeout waiting for master\n");
1898
1899 tmp = CSR_READ_4(sc, IPW_CSR_RST);
1900 CSR_WRITE_4(sc, IPW_CSR_RST, tmp | IPW_RST_PRINCETON_RESET);
1901
1902 /* Clear all flags except the following */
1903 sc->flags &= IPW_FLAG_HAS_RADIO_SWITCH;
1904}
1905
1906static int
1907ipw_reset(struct ipw_softc *sc)
1908{
1909 uint32_t tmp;
1910 int ntries;
1911
1912 ipw_stop_master(sc);
1913
1914 /* move adapter to D0 state */
1915 tmp = CSR_READ_4(sc, IPW_CSR_CTL);
1916 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_INIT);
1917
1918 /* wait for clock stabilization */
1919 for (ntries = 0; ntries < 1000; ntries++) {
1920 if (CSR_READ_4(sc, IPW_CSR_CTL) & IPW_CTL_CLOCK_READY)
1921 break;
1922 DELAY(200);
1923 }
1924 if (ntries == 1000)
1925 return EIO;
1926
1927 tmp = CSR_READ_4(sc, IPW_CSR_RST);
1928 CSR_WRITE_4(sc, IPW_CSR_RST, tmp | IPW_RST_SW_RESET);
1929
1930 DELAY(10);
1931
1932 tmp = CSR_READ_4(sc, IPW_CSR_CTL);
1933 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_INIT);
1934
1935 return 0;
1936}
1937
1938static int
1939ipw_waitfordisable(struct ipw_softc *sc, int waitfor)
1940{
1941 int ms = hz < 1000 ? 1 : hz/10;
1942 int i, error;
1943
1944 for (i = 0; i < 100; i++) {
1945 if (ipw_read_table1(sc, IPW_INFO_CARD_DISABLED) == waitfor)
1946 return 0;
1947 error = msleep(sc, &sc->sc_mtx, PCATCH, __func__, ms);
1948 if (error == 0 || error != EWOULDBLOCK)
1949 return 0;
1950 }
1951 DPRINTF(("%s: timeout waiting for %s\n",
1952 __func__, waitfor ? "disable" : "enable"));
1953 return ETIMEDOUT;
1954}
1955
1956static int
1957ipw_enable(struct ipw_softc *sc)
1958{
1959 int error;
1960
1961 if ((sc->flags & IPW_FLAG_ENABLED) == 0) {
1962 DPRINTF(("Enable adapter\n"));
1963 error = ipw_cmd(sc, IPW_CMD_ENABLE, NULL, 0);
1964 if (error != 0)
1965 return error;
1966 error = ipw_waitfordisable(sc, 0);
1967 if (error != 0)
1968 return error;
1969 sc->flags |= IPW_FLAG_ENABLED;
1970 }
1971 return 0;
1972}
1973
1974static int
1975ipw_disable(struct ipw_softc *sc)
1976{
1977 int error;
1978
1979 if (sc->flags & IPW_FLAG_ENABLED) {
1980 DPRINTF(("Disable adapter\n"));
1981 error = ipw_cmd(sc, IPW_CMD_DISABLE, NULL, 0);
1982 if (error != 0)
1983 return error;
1984 error = ipw_waitfordisable(sc, 1);
1985 if (error != 0)
1986 return error;
1987 sc->flags &= ~IPW_FLAG_ENABLED;
1988 }
1989 return 0;
1990}
1991
1992/*
1993 * Upload the microcode to the device.
1994 */
1995static int
1996ipw_load_ucode(struct ipw_softc *sc, const char *uc, int size)
1997{
1998 int ntries;
1999
2000 MEM_WRITE_4(sc, 0x3000e0, 0x80000000);
2001 CSR_WRITE_4(sc, IPW_CSR_RST, 0);
2002
2003 MEM_WRITE_2(sc, 0x220000, 0x0703);
2004 MEM_WRITE_2(sc, 0x220000, 0x0707);
2005
2006 MEM_WRITE_1(sc, 0x210014, 0x72);
2007 MEM_WRITE_1(sc, 0x210014, 0x72);
2008
2009 MEM_WRITE_1(sc, 0x210000, 0x40);
2010 MEM_WRITE_1(sc, 0x210000, 0x00);
2011 MEM_WRITE_1(sc, 0x210000, 0x40);
2012
2013 MEM_WRITE_MULTI_1(sc, 0x210010, uc, size);
2014
2015 MEM_WRITE_1(sc, 0x210000, 0x00);
2016 MEM_WRITE_1(sc, 0x210000, 0x00);
2017 MEM_WRITE_1(sc, 0x210000, 0x80);
2018
2019 MEM_WRITE_2(sc, 0x220000, 0x0703);
2020 MEM_WRITE_2(sc, 0x220000, 0x0707);
2021
2022 MEM_WRITE_1(sc, 0x210014, 0x72);
2023 MEM_WRITE_1(sc, 0x210014, 0x72);
2024
2025 MEM_WRITE_1(sc, 0x210000, 0x00);
2026 MEM_WRITE_1(sc, 0x210000, 0x80);
2027
2028 for (ntries = 0; ntries < 10; ntries++) {
2029 if (MEM_READ_1(sc, 0x210000) & 1)
2030 break;
2031 DELAY(10);
2032 }
2033 if (ntries == 10) {
2034 device_printf(sc->sc_dev,
2035 "timeout waiting for ucode to initialize\n");
2036 return EIO;
2037 }
2038
2039 MEM_WRITE_4(sc, 0x3000e0, 0);
2040
2041 return 0;
2042}
2043
2044/* set of macros to handle unaligned little endian data in firmware image */
2045#define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24)
2046#define GETLE16(p) ((p)[0] | (p)[1] << 8)
2047static int
2048ipw_load_firmware(struct ipw_softc *sc, const char *fw, int size)
2049{
2050 const uint8_t *p, *end;
2051 uint32_t tmp, dst;
2052 uint16_t len;
2053 int error;
2054
2055 p = fw;
2056 end = fw + size;
2057 while (p < end) {
2058 dst = GETLE32(p); p += 4;
2059 len = GETLE16(p); p += 2;
2060
2061 ipw_write_mem_1(sc, dst, p, len);
2062 p += len;
2063 }
2064
2065 CSR_WRITE_4(sc, IPW_CSR_IO, IPW_IO_GPIO1_ENABLE | IPW_IO_GPIO3_MASK |
2066 IPW_IO_LED_OFF);
2067
2068 /* enable interrupts */
2069 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, IPW_INTR_MASK);
2070
2071 /* kick the firmware */
2072 CSR_WRITE_4(sc, IPW_CSR_RST, 0);
2073
2074 tmp = CSR_READ_4(sc, IPW_CSR_CTL);
2075 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_ALLOW_STANDBY);
2076
2077 /* wait at most one second for firmware initialization to complete */
2078 if ((error = msleep(sc, &sc->sc_mtx, 0, "ipwinit", hz)) != 0) {
2079 device_printf(sc->sc_dev, "timeout waiting for firmware "
2080 "initialization to complete\n");
2081 return error;
2082 }
2083
2084 tmp = CSR_READ_4(sc, IPW_CSR_IO);
2085 CSR_WRITE_4(sc, IPW_CSR_IO, tmp | IPW_IO_GPIO1_MASK |
2086 IPW_IO_GPIO3_MASK);
2087
2088 return 0;
2089}
2090
2091static int
2092ipw_setwepkeys(struct ipw_softc *sc)
2093{
2094 struct ifnet *ifp = sc->sc_ifp;
2095 struct ieee80211com *ic = ifp->if_l2com;
2096 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2097 struct ipw_wep_key wepkey;
2098 struct ieee80211_key *wk;
2099 int error, i;
2100
2101 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2102 wk = &vap->iv_nw_keys[i];
2103
2104 if (wk->wk_cipher == NULL ||
2105 wk->wk_cipher->ic_cipher != IEEE80211_CIPHER_WEP)
2106 continue;
2107
2108 wepkey.idx = i;
2109 wepkey.len = wk->wk_keylen;
2110 memset(wepkey.key, 0, sizeof wepkey.key);
2111 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen);
2112 DPRINTF(("Setting wep key index %u len %u\n", wepkey.idx,
2113 wepkey.len));
2114 error = ipw_cmd(sc, IPW_CMD_SET_WEP_KEY, &wepkey,
2115 sizeof wepkey);
2116 if (error != 0)
2117 return error;
2118 }
2119 return 0;
2120}
2121
2122static int
2123ipw_setwpaie(struct ipw_softc *sc, const void *ie, int ielen)
2124{
2125 struct ipw_wpa_ie wpaie;
2126
2127 memset(&wpaie, 0, sizeof(wpaie));
2128 wpaie.len = htole32(ielen);
2129 /* XXX verify length */
2130 memcpy(&wpaie.ie, ie, ielen);
2131 DPRINTF(("Setting WPA IE\n"));
2132 return ipw_cmd(sc, IPW_CMD_SET_WPA_IE, &wpaie, sizeof(wpaie));
2133}
2134
2135static int
2136ipw_setbssid(struct ipw_softc *sc, uint8_t *bssid)
2137{
2138 static const uint8_t zerobssid[IEEE80211_ADDR_LEN];
2139
2140 if (bssid == NULL || bcmp(bssid, zerobssid, IEEE80211_ADDR_LEN) == 0) {
2141 DPRINTF(("Setting mandatory BSSID to null\n"));
2142 return ipw_cmd(sc, IPW_CMD_SET_MANDATORY_BSSID, NULL, 0);
2143 } else {
2144 DPRINTF(("Setting mandatory BSSID to %6D\n", bssid, ":"));
2145 return ipw_cmd(sc, IPW_CMD_SET_MANDATORY_BSSID,
2146 bssid, IEEE80211_ADDR_LEN);
2147 }
2148}
2149
2150static int
2151ipw_setssid(struct ipw_softc *sc, void *ssid, size_t ssidlen)
2152{
2153 if (ssidlen == 0) {
2154 /*
2155 * A bug in the firmware breaks the ``don't associate''
2156 * bit in the scan options command. To compensate for
2157 * this install a bogus ssid when no ssid is specified
2158 * so the firmware won't try to associate.
2159 */
2160 DPRINTF(("Setting bogus ESSID to WAR firmware bug\n"));
2161 return ipw_cmd(sc, IPW_CMD_SET_ESSID,
2162 "\x18\x19\x20\x21\x22\x23\x24\x25\x26\x27"
2163 "\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f\x30\x31"
2164 "\x32\x33\x34\x35\x36\x37\x38\x39\x3a\x3b"
2165 "\x3c\x3d", IEEE80211_NWID_LEN);
2166 } else {
2167#ifdef IPW_DEBUG
2168 if (ipw_debug > 0) {
2169 printf("Setting ESSID to ");
2170 ieee80211_print_essid(ssid, ssidlen);
2171 printf("\n");
2172 }
2173#endif
2174 return ipw_cmd(sc, IPW_CMD_SET_ESSID, ssid, ssidlen);
2175 }
2176}
2177
2178static int
2179ipw_setscanopts(struct ipw_softc *sc, uint32_t chanmask, uint32_t flags)
2180{
2181 struct ipw_scan_options opts;
2182
2183 DPRINTF(("Scan options: mask 0x%x flags 0x%x\n", chanmask, flags));
2184 opts.channels = htole32(chanmask);
2185 opts.flags = htole32(flags);
2186 return ipw_cmd(sc, IPW_CMD_SET_SCAN_OPTIONS, &opts, sizeof(opts));
2187}
2188
2189/*
2190 * Handler for sc_scan_task. This is a simple wrapper around ipw_scan().
2191 */
2192static void
2193ipw_scan_task(void *context, int pending)
2194{
2195 struct ipw_softc *sc = context;
2196 IPW_LOCK_DECL;
2197
2198 IPW_LOCK(sc);
2199 ipw_scan(sc);
2200 IPW_UNLOCK(sc);
2201}
2202
2203static int
2204ipw_scan(struct ipw_softc *sc)
2205{
2206 uint32_t params;
2207 int error;
2208
2209 DPRINTF(("%s: flags 0x%x\n", __func__, sc->flags));
2210
2211 if (sc->flags & IPW_FLAG_SCANNING)
2212 return (EBUSY);
2213 sc->flags |= IPW_FLAG_SCANNING | IPW_FLAG_HACK;
2214
2215 /* NB: IPW_SCAN_DO_NOT_ASSOCIATE does not work (we set it anyway) */
2216 error = ipw_setscanopts(sc, 0x3fff, IPW_SCAN_DO_NOT_ASSOCIATE);
2217 if (error != 0)
2218 goto done;
2219
2220 /*
2221 * Setup null/bogus ssid so firmware doesn't use any previous
2222 * ssid to try and associate. This is because the ``don't
2223 * associate'' option bit is broken (sigh).
2224 */
2225 error = ipw_setssid(sc, NULL, 0);
2226 if (error != 0)
2227 goto done;
2228
2229 /*
2230 * NB: the adapter may be disabled on association lost;
2231 * if so just re-enable it to kick off scanning.
2232 */
2233 DPRINTF(("Starting scan\n"));
2234 sc->sc_scan_timer = 3;
2235 if (sc->flags & IPW_FLAG_ENABLED) {
2236 params = 0; /* XXX? */
2237 error = ipw_cmd(sc, IPW_CMD_BROADCAST_SCAN,
2238 ¶ms, sizeof(params));
2239 } else
2240 error = ipw_enable(sc);
2241done:
2242 if (error != 0) {
2243 DPRINTF(("Scan failed\n"));
2244 sc->flags &= ~(IPW_FLAG_SCANNING | IPW_FLAG_HACK);
2245 }
2246 return (error);
2247}
2248
2249static int
2250ipw_setchannel(struct ipw_softc *sc, struct ieee80211_channel *chan)
2251{
2252 struct ifnet *ifp = sc->sc_ifp;
2253 struct ieee80211com *ic = ifp->if_l2com;
2254 uint32_t data;
2255 int error;
2256
2257 data = htole32(ieee80211_chan2ieee(ic, chan));
2258 DPRINTF(("Setting channel to %u\n", le32toh(data)));
2259 error = ipw_cmd(sc, IPW_CMD_SET_CHANNEL, &data, sizeof data);
2260 if (error == 0)
2261 ipw_setcurchan(sc, chan);
2262 return error;
2263}
2264
2265static void
2266ipw_assoc_task(void *context, int pending)
2267{
2268 struct ieee80211vap *vap = context;
2269 struct ifnet *ifp = vap->iv_ic->ic_ifp;
2270 struct ieee80211com *ic = ifp->if_l2com;
2271 struct ipw_softc *sc = ifp->if_softc;
2272 struct ieee80211_node *ni = vap->iv_bss;
2273 struct ipw_security security;
2274 uint32_t data;
2275 int error;
2276 IPW_LOCK_DECL;
2277
2278 IPW_LOCK(sc);
2279 error = ipw_disable(sc);
2280 if (error != 0)
2281 goto done;
2282
2283 memset(&security, 0, sizeof security);
2284 security.authmode = (ni->ni_authmode == IEEE80211_AUTH_SHARED) ?
2285 IPW_AUTH_SHARED : IPW_AUTH_OPEN;
2286 security.ciphers = htole32(IPW_CIPHER_NONE);
2287 DPRINTF(("Setting authmode to %u\n", security.authmode));
2288 error = ipw_cmd(sc, IPW_CMD_SET_SECURITY_INFO, &security,
2289 sizeof security);
2290 if (error != 0)
2291 goto done;
2292
2293 data = htole32(vap->iv_rtsthreshold);
2294 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data)));
2295 error = ipw_cmd(sc, IPW_CMD_SET_RTS_THRESHOLD, &data, sizeof data);
2296 if (error != 0)
2297 goto done;
2298
2299 data = htole32(vap->iv_fragthreshold);
2300 DPRINTF(("Setting frag threshold to %u\n", le32toh(data)));
2301 error = ipw_cmd(sc, IPW_CMD_SET_FRAG_THRESHOLD, &data, sizeof data);
2302 if (error != 0)
2303 goto done;
2304
2305 if (vap->iv_flags & IEEE80211_F_PRIVACY) {
2306 error = ipw_setwepkeys(sc);
2307 if (error != 0)
2308 goto done;
2309
2310 if (vap->iv_def_txkey != IEEE80211_KEYIX_NONE) {
2311 data = htole32(vap->iv_def_txkey);
2312 DPRINTF(("Setting wep tx key index to %u\n",
2313 le32toh(data)));
2314 error = ipw_cmd(sc, IPW_CMD_SET_WEP_KEY_INDEX, &data,
2315 sizeof data);
2316 if (error != 0)
2317 goto done;
2318 }
2319 }
2320
2321 data = htole32((vap->iv_flags & IEEE80211_F_PRIVACY) ? IPW_WEPON : 0);
2322 DPRINTF(("Setting wep flags to 0x%x\n", le32toh(data)));
2323 error = ipw_cmd(sc, IPW_CMD_SET_WEP_FLAGS, &data, sizeof data);
2324 if (error != 0)
2325 goto done;
2326
2327 error = ipw_setssid(sc, ni->ni_essid, ni->ni_esslen);
2328 if (error != 0)
2329 goto done;
2330
2331 error = ipw_setbssid(sc, ni->ni_bssid);
2332 if (error != 0)
2333 goto done;
2334
2335 if (vap->iv_appie_assocreq != NULL) {
2336 struct ieee80211_appie *ie = vap->iv_appie_assocreq;
2337 error = ipw_setwpaie(sc, ie->ie_data, ie->ie_len);
2338 if (error != 0)
2339 goto done;
2340 }
2341 if (ic->ic_opmode == IEEE80211_M_IBSS) {
2342 error = ipw_setchannel(sc, ni->ni_chan);
2343 if (error != 0)
2344 goto done;
2345 }
2346
2347 /* lock scan to ap's channel and enable associate */
2348 error = ipw_setscanopts(sc,
2349 1<<(ieee80211_chan2ieee(ic, ni->ni_chan)-1), 0);
2350 if (error != 0)
2351 goto done;
2352
2353 error = ipw_enable(sc); /* finally, enable adapter */
2354 if (error == 0)
2355 sc->flags |= IPW_FLAG_ASSOCIATING;
2356done:
2357 IPW_UNLOCK(sc);
2358}
2359
2360static void
2361ipw_disassoc_task(void *context, int pending)
2362{
2363 struct ieee80211vap *vap = context;
2364 struct ifnet *ifp = vap->iv_ic->ic_ifp;
2365 struct ieee80211_node *ni = vap->iv_bss;
2366 struct ipw_softc *sc = ifp->if_softc;
2367 IPW_LOCK_DECL;
2368
2369 IPW_LOCK(sc);
2370 DPRINTF(("Disassociate from %6D\n", ni->ni_bssid, ":"));
2371 /*
2372 * NB: don't try to do this if ipw_stop_master has
2373 * shutdown the firmware and disabled interrupts.
2374 */
2375 if (sc->flags & IPW_FLAG_FW_INITED) {
2376 sc->flags &= ~IPW_FLAG_ASSOCIATED;
2377 /*
2378 * NB: firmware currently ignores bssid parameter, but
2379 * supply it in case this changes (follow linux driver).
2380 */
2381 (void) ipw_cmd(sc, IPW_CMD_DISASSOCIATE,
2382 ni->ni_bssid, IEEE80211_ADDR_LEN);
2383 }
2384 IPW_UNLOCK(sc);
2385}
2386
2387/*
2388 * Handler for sc_init_task. This is a simple wrapper around ipw_init().
2389 * It is called on firmware panics or on watchdog timeouts.
2390 */
2391static void
2392ipw_init_task(void *context, int pending)
2393{
2394 ipw_init(context);
2395}
2396
2397static void
2398ipw_init(void *priv)
2399{
2400 struct ipw_softc *sc = priv;
2401 struct ifnet *ifp = sc->sc_ifp;
2402 struct ieee80211com *ic = ifp->if_l2com;
2403 IPW_LOCK_DECL;
2404
2405 IPW_LOCK(sc);
2406 ipw_init_locked(sc);
2407 IPW_UNLOCK(sc);
2408
2409 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
2410 ieee80211_start_all(ic); /* start all vap's */
2411}
2412
2413static void
2414ipw_init_locked(struct ipw_softc *sc)
2415{
2416 struct ifnet *ifp = sc->sc_ifp;
2417 struct ieee80211com *ic = ifp->if_l2com;
2418 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2419 const struct firmware *fp;
2420 const struct ipw_firmware_hdr *hdr;
2421 const char *fw;
2422
2423 IPW_LOCK_ASSERT(sc);
2424
2425 DPRINTF(("%s: state %s flags 0x%x\n", __func__,
2426 ieee80211_state_name[vap->iv_state], sc->flags));
2427
2428 /*
2429 * Avoid re-entrant calls. We need to release the mutex in ipw_init()
2430 * when loading the firmware and we don't want to be called during this
2431 * operation.
2432 */
2433 if (sc->flags & IPW_FLAG_INIT_LOCKED)
2434 return;
2435 sc->flags |= IPW_FLAG_INIT_LOCKED;
2436
2437 ipw_stop_locked(sc);
2438
2439 if (ipw_reset(sc) != 0) {
2440 device_printf(sc->sc_dev, "could not reset adapter\n");
2441 goto fail;
2442 }
2443
2444 if (sc->sc_firmware == NULL) {
2445 device_printf(sc->sc_dev, "no firmware\n");
2446 goto fail;
2447 }
2448 /* NB: consistency already checked on load */
2449 fp = sc->sc_firmware;
2450 hdr = (const struct ipw_firmware_hdr *)fp->data;
2451
2452 DPRINTF(("Loading firmware image '%s'\n", fp->name));
2453 fw = (const char *)fp->data + sizeof *hdr + le32toh(hdr->mainsz);
2454 if (ipw_load_ucode(sc, fw, le32toh(hdr->ucodesz)) != 0) {
2455 device_printf(sc->sc_dev, "could not load microcode\n");
2456 goto fail;
2457 }
2458
2459 ipw_stop_master(sc);
2460
2461 /*
2462 * Setup tx, rx and status rings.
2463 */
2464 sc->txold = IPW_NTBD - 1;
2465 sc->txcur = 0;
2466 sc->txfree = IPW_NTBD - 2;
2467 sc->rxcur = IPW_NRBD - 1;
2468
2469 CSR_WRITE_4(sc, IPW_CSR_TX_BASE, sc->tbd_phys);
2470 CSR_WRITE_4(sc, IPW_CSR_TX_SIZE, IPW_NTBD);
2471 CSR_WRITE_4(sc, IPW_CSR_TX_READ, 0);
2472 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur);
2473
2474 CSR_WRITE_4(sc, IPW_CSR_RX_BASE, sc->rbd_phys);
2475 CSR_WRITE_4(sc, IPW_CSR_RX_SIZE, IPW_NRBD);
2476 CSR_WRITE_4(sc, IPW_CSR_RX_READ, 0);
2477 CSR_WRITE_4(sc, IPW_CSR_RX_WRITE, sc->rxcur);
2478
2479 CSR_WRITE_4(sc, IPW_CSR_STATUS_BASE, sc->status_phys);
2480
2481 fw = (const char *)fp->data + sizeof *hdr;
2482 if (ipw_load_firmware(sc, fw, le32toh(hdr->mainsz)) != 0) {
2483 device_printf(sc->sc_dev, "could not load firmware\n");
2484 goto fail;
2485 }
2486
2487 sc->flags |= IPW_FLAG_FW_INITED;
2488
2489 /* retrieve information tables base addresses */
2490 sc->table1_base = CSR_READ_4(sc, IPW_CSR_TABLE1_BASE);
2491 sc->table2_base = CSR_READ_4(sc, IPW_CSR_TABLE2_BASE);
2492
2493 ipw_write_table1(sc, IPW_INFO_LOCK, 0);
2494
2495 if (ipw_config(sc) != 0) {
2496 device_printf(sc->sc_dev, "device configuration failed\n");
2497 goto fail;
2498 }
2499
2500 callout_reset(&sc->sc_wdtimer, hz, ipw_watchdog, sc);
2501 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
2502 ifp->if_drv_flags |= IFF_DRV_RUNNING;
2503
2504 sc->flags &=~ IPW_FLAG_INIT_LOCKED;
2505 return;
2506
2507fail:
2508 ipw_stop_locked(sc);
2509 sc->flags &=~ IPW_FLAG_INIT_LOCKED;
2510}
2511
2512static int
2513ipw_config(struct ipw_softc *sc)
2514{
2515 struct ifnet *ifp = sc->sc_ifp;
2516 struct ieee80211com *ic = ifp->if_l2com;
2517 struct ipw_configuration config;
2518 uint32_t data;
2519 int error;
2520
2521 error = ipw_disable(sc);
2522 if (error != 0)
2523 return error;
2524
2525 switch (ic->ic_opmode) {
2526 case IEEE80211_M_STA:
2527 case IEEE80211_M_HOSTAP:
2528 case IEEE80211_M_WDS: /* XXX */
2529 data = htole32(IPW_MODE_BSS);
2530 break;
2531 case IEEE80211_M_IBSS:
2532 case IEEE80211_M_AHDEMO:
2533 data = htole32(IPW_MODE_IBSS);
2534 break;
2535 case IEEE80211_M_MONITOR:
2536 data = htole32(IPW_MODE_MONITOR);
2537 break;
2538 }
2539 DPRINTF(("Setting mode to %u\n", le32toh(data)));
2540 error = ipw_cmd(sc, IPW_CMD_SET_MODE, &data, sizeof data);
2541 if (error != 0)
2542 return error;
2543
2544 if (ic->ic_opmode == IEEE80211_M_IBSS ||
2545 ic->ic_opmode == IEEE80211_M_MONITOR) {
2546 error = ipw_setchannel(sc, ic->ic_curchan);
2547 if (error != 0)
2548 return error;
2549 }
2550
2551 if (ic->ic_opmode == IEEE80211_M_MONITOR)
2552 return ipw_enable(sc);
2553
2554 config.flags = htole32(IPW_CFG_BSS_MASK | IPW_CFG_IBSS_MASK |
2555 IPW_CFG_PREAMBLE_AUTO | IPW_CFG_802_1x_ENABLE);
2556 if (ic->ic_opmode == IEEE80211_M_IBSS)
2557 config.flags |= htole32(IPW_CFG_IBSS_AUTO_START);
2558 if (ifp->if_flags & IFF_PROMISC)
2559 config.flags |= htole32(IPW_CFG_PROMISCUOUS);
2560 config.bss_chan = htole32(0x3fff); /* channels 1-14 */
2561 config.ibss_chan = htole32(0x7ff); /* channels 1-11 */
2562 DPRINTF(("Setting configuration to 0x%x\n", le32toh(config.flags)));
2563 error = ipw_cmd(sc, IPW_CMD_SET_CONFIGURATION, &config, sizeof config);
2564 if (error != 0)
2565 return error;
2566
2567 data = htole32(0x3); /* 1, 2 */
2568 DPRINTF(("Setting basic tx rates to 0x%x\n", le32toh(data)));
2569 error = ipw_cmd(sc, IPW_CMD_SET_BASIC_TX_RATES, &data, sizeof data);
2570 if (error != 0)
2571 return error;
2572
2573 /* NB: use the same rate set */
2574 DPRINTF(("Setting msdu tx rates to 0x%x\n", le32toh(data)));
2575 error = ipw_cmd(sc, IPW_CMD_SET_MSDU_TX_RATES, &data, sizeof data);
2576 if (error != 0)
2577 return error;
2578
2579 data = htole32(0xf); /* 1, 2, 5.5, 11 */
2580 DPRINTF(("Setting tx rates to 0x%x\n", le32toh(data)));
2581 error = ipw_cmd(sc, IPW_CMD_SET_TX_RATES, &data, sizeof data);
2582 if (error != 0)
2583 return error;
2584
2585 data = htole32(IPW_POWER_MODE_CAM);
2586 DPRINTF(("Setting power mode to %u\n", le32toh(data)));
2587 error = ipw_cmd(sc, IPW_CMD_SET_POWER_MODE, &data, sizeof data);
2588 if (error != 0)
2589 return error;
2590
2591 if (ic->ic_opmode == IEEE80211_M_IBSS) {
2592 data = htole32(32); /* default value */
2593 DPRINTF(("Setting tx power index to %u\n", le32toh(data)));
2594 error = ipw_cmd(sc, IPW_CMD_SET_TX_POWER_INDEX, &data,
2595 sizeof data);
2596 if (error != 0)
2597 return error;
2598 }
2599
2600 return 0;
2601}
2602
2603static void
2604ipw_stop(void *priv)
2605{
2606 struct ipw_softc *sc = priv;
2607 IPW_LOCK_DECL;
2608
2609 IPW_LOCK(sc);
2610 ipw_stop_locked(sc);
2611 IPW_UNLOCK(sc);
2612}
2613
2614static void
2615ipw_stop_locked(struct ipw_softc *sc)
2616{
2617 struct ifnet *ifp = sc->sc_ifp;
2618 int i;
2619
2620 IPW_LOCK_ASSERT(sc);
2621
2622 callout_stop(&sc->sc_wdtimer);
2623 ipw_stop_master(sc);
2624
2625 CSR_WRITE_4(sc, IPW_CSR_RST, IPW_RST_SW_RESET);
2626
2627 /*
2628 * Release tx buffers.
2629 */
2630 for (i = 0; i < IPW_NTBD; i++)
2631 ipw_release_sbd(sc, &sc->stbd_list[i]);
2632
2633 sc->sc_tx_timer = 0;
2634 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
2635}
2636
2637static int
2638ipw_sysctl_stats(SYSCTL_HANDLER_ARGS)
2639{
2640 struct ipw_softc *sc = arg1;
2641 uint32_t i, size, buf[256];
2642
2643 memset(buf, 0, sizeof buf);
2644
2645 if (!(sc->flags & IPW_FLAG_FW_INITED))
2646 return SYSCTL_OUT(req, buf, sizeof buf);
2647
2648 CSR_WRITE_4(sc, IPW_CSR_AUTOINC_ADDR, sc->table1_base);
2649
2650 size = min(CSR_READ_4(sc, IPW_CSR_AUTOINC_DATA), 256);
2651 for (i = 1; i < size; i++)
2652 buf[i] = MEM_READ_4(sc, CSR_READ_4(sc, IPW_CSR_AUTOINC_DATA));
2653
2654 return SYSCTL_OUT(req, buf, size);
2655}
2656
2657static int
2658ipw_sysctl_radio(SYSCTL_HANDLER_ARGS)
2659{
2660 struct ipw_softc *sc = arg1;
2661 int val;
2662
2663 val = !((sc->flags & IPW_FLAG_HAS_RADIO_SWITCH) &&
2664 (CSR_READ_4(sc, IPW_CSR_IO) & IPW_IO_RADIO_DISABLED));
2665
2666 return SYSCTL_OUT(req, &val, sizeof val);
2667}
2668
2669static uint32_t
2670ipw_read_table1(struct ipw_softc *sc, uint32_t off)
2671{
2672 return MEM_READ_4(sc, MEM_READ_4(sc, sc->table1_base + off));
2673}
2674
2675static void
2676ipw_write_table1(struct ipw_softc *sc, uint32_t off, uint32_t info)
2677{
2678 MEM_WRITE_4(sc, MEM_READ_4(sc, sc->table1_base + off), info);
2679}
2680
2681#if 0
2682static int
2683ipw_read_table2(struct ipw_softc *sc, uint32_t off, void *buf, uint32_t *len)
2684{
2685 uint32_t addr, info;
2686 uint16_t count, size;
2687 uint32_t total;
2688
2689 /* addr[4] + count[2] + size[2] */
2690 addr = MEM_READ_4(sc, sc->table2_base + off);
2691 info = MEM_READ_4(sc, sc->table2_base + off + 4);
2692
2693 count = info >> 16;
2694 size = info & 0xffff;
2695 total = count * size;
2696
2697 if (total > *len) {
2698 *len = total;
2699 return EINVAL;
2700 }
2701
2702 *len = total;
2703 ipw_read_mem_1(sc, addr, buf, total);
2704
2705 return 0;
2706}
2707
2708static void
2709ipw_read_mem_1(struct ipw_softc *sc, bus_size_t offset, uint8_t *datap,
2710 bus_size_t count)
2711{
2712 for (; count > 0; offset++, datap++, count--) {
2713 CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, offset & ~3);
2714 *datap = CSR_READ_1(sc, IPW_CSR_INDIRECT_DATA + (offset & 3));
2715 }
2716}
2717#endif
2718
2719static void
2720ipw_write_mem_1(struct ipw_softc *sc, bus_size_t offset, const uint8_t *datap,
2721 bus_size_t count)
2722{
2723 for (; count > 0; offset++, datap++, count--) {
2724 CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, offset & ~3);
2725 CSR_WRITE_1(sc, IPW_CSR_INDIRECT_DATA + (offset & 3), *datap);
2726 }
2727}
2728
2729static void
2730ipw_scan_start(struct ieee80211com *ic)
2731{
2732 struct ifnet *ifp = ic->ic_ifp;
2733 struct ipw_softc *sc = ifp->if_softc;
2734 IPW_LOCK_DECL;
2735
2736 IPW_LOCK(sc);
2737 if (!(sc->flags & IPW_FLAG_SCANNING))
2738 taskqueue_enqueue(taskqueue_swi, &sc->sc_scan_task);
2739 IPW_UNLOCK(sc);
2740}
2741
2742static void
2743ipw_set_channel(struct ieee80211com *ic)
2744{
2745 struct ifnet *ifp = ic->ic_ifp;
2746 struct ipw_softc *sc = ifp->if_softc;
2747 IPW_LOCK_DECL;
2748
2749 IPW_LOCK(sc);
2750 if (ic->ic_opmode == IEEE80211_M_MONITOR) {
2751 ipw_disable(sc);
2752 ipw_setchannel(sc, ic->ic_curchan);
2753 ipw_enable(sc);
2754 }
2755 IPW_UNLOCK(sc);
2756}
2757
2758static void
2759ipw_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)
2760{
2761 /* NB: all channels are scanned at once */
2762}
2763
2764static void
2765ipw_scan_mindwell(struct ieee80211_scan_state *ss)
2766{
2767 /* NB: don't try to abort scan; wait for firmware to finish */
2768}
2769
2770static void
2771ipw_scan_end(struct ieee80211com *ic)
2772{
2773 struct ifnet *ifp = ic->ic_ifp;
2774 struct ipw_softc *sc = ifp->if_softc;
2775 IPW_LOCK_DECL;
2776
2777 IPW_LOCK(sc);
2778 sc->flags &= ~IPW_FLAG_SCANNING;
2779 IPW_UNLOCK(sc);
2780}
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