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