2 * Copyright (c) 2004, 2005
3 * Damien Bergamini <damien.bergamini@free.fr>. All rights reserved.
4 * Copyright (c) 2005-2006 Sam Leffler, Errno Consulting
5 * Copyright (c) 2007 Andrew Thompson <thompsa@FreeBSD.org>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice unmodified, this list of conditions, and the following
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * $FreeBSD: src/sys/dev/iwi/if_iwi.c,v 1.72 2009/07/10 15:28:33 rpaulo Exp $
33 * Intel(R) PRO/Wireless 2200BG/2225BG/2915ABG driver
34 * http://www.intel.com/network/connectivity/products/wireless/prowireless_mobile.htm
37 #include <sys/param.h>
38 #include <sys/sysctl.h>
39 #include <sys/sockio.h>
41 #include <sys/kernel.h>
42 #include <sys/socket.h>
43 #include <sys/systm.h>
44 #include <sys/malloc.h>
46 #include <sys/mutex.h>
47 #include <sys/module.h>
49 #include <sys/endian.h>
51 #include <sys/mount.h>
52 #include <sys/namei.h>
53 #include <sys/linker.h>
54 #include <sys/firmware.h>
55 #include <sys/taskqueue.h>
56 #include <sys/devfs.h>
58 #include <sys/resource.h>
61 #include <bus/pci/pcireg.h>
62 #include <bus/pci/pcivar.h>
66 #include <net/if_arp.h>
67 #include <net/ethernet.h>
68 #include <net/if_dl.h>
69 #include <net/if_media.h>
70 #include <net/if_types.h>
71 #include <net/ifq_var.h>
73 #include <netproto/802_11/ieee80211_var.h>
74 #include <netproto/802_11/ieee80211_radiotap.h>
75 #include <netproto/802_11/ieee80211_input.h>
76 #include <netproto/802_11/ieee80211_regdomain.h>
78 #include <netinet/in.h>
79 #include <netinet/in_systm.h>
80 #include <netinet/in_var.h>
81 #include <netinet/ip.h>
82 #include <netinet/if_ether.h>
84 #include <dev/netif/iwi/if_iwireg.h>
85 #include <dev/netif/iwi/if_iwivar.h>
89 #define DPRINTF(x) do { if (iwi_debug > 0) kprintf x; } while (0)
90 #define DPRINTFN(n, x) do { if (iwi_debug >= (n)) kprintf x; } while (0)
92 SYSCTL_INT(_debug, OID_AUTO, iwi, CTLFLAG_RW, &iwi_debug, 0, "iwi debug level");
94 static const char *iwi_fw_states[] = {
95 "IDLE", /* IWI_FW_IDLE */
96 "LOADING", /* IWI_FW_LOADING */
97 "ASSOCIATING", /* IWI_FW_ASSOCIATING */
98 "DISASSOCIATING", /* IWI_FW_DISASSOCIATING */
99 "SCANNING", /* IWI_FW_SCANNING */
103 #define DPRINTFN(n, x)
106 MODULE_DEPEND(iwi, pci, 1, 1, 1);
107 MODULE_DEPEND(iwi, wlan, 1, 1, 1);
108 MODULE_DEPEND(iwi, firmware, 1, 1, 1);
122 static const struct iwi_ident iwi_ident_table[] = {
123 { 0x8086, 0x4220, "Intel(R) PRO/Wireless 2200BG" },
124 { 0x8086, 0x4221, "Intel(R) PRO/Wireless 2225BG" },
125 { 0x8086, 0x4223, "Intel(R) PRO/Wireless 2915ABG" },
126 { 0x8086, 0x4224, "Intel(R) PRO/Wireless 2915ABG" },
131 static struct ieee80211vap *iwi_vap_create(struct ieee80211com *,
132 const char name[IFNAMSIZ], int unit,
133 enum ieee80211_opmode opmode, int flags,
134 const uint8_t bssid[IEEE80211_ADDR_LEN],
135 const uint8_t mac[IEEE80211_ADDR_LEN]);
136 static void iwi_vap_delete(struct ieee80211vap *);
137 static void iwi_dma_map_addr(void *, bus_dma_segment_t *, int, int);
138 static int iwi_alloc_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *,
140 static void iwi_reset_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *);
141 static void iwi_free_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *);
142 static int iwi_alloc_tx_ring(struct iwi_softc *, struct iwi_tx_ring *,
143 int, bus_addr_t, bus_addr_t);
144 static void iwi_reset_tx_ring(struct iwi_softc *, struct iwi_tx_ring *);
145 static void iwi_free_tx_ring(struct iwi_softc *, struct iwi_tx_ring *);
146 static int iwi_alloc_rx_ring(struct iwi_softc *, struct iwi_rx_ring *,
148 static void iwi_reset_rx_ring(struct iwi_softc *, struct iwi_rx_ring *);
149 static void iwi_free_rx_ring(struct iwi_softc *, struct iwi_rx_ring *);
150 static struct ieee80211_node *iwi_node_alloc(struct ieee80211vap *,
151 const uint8_t [IEEE80211_ADDR_LEN]);
152 static void iwi_node_free(struct ieee80211_node *);
153 static void iwi_media_status(struct ifnet *, struct ifmediareq *);
154 static int iwi_newstate(struct ieee80211vap *, enum ieee80211_state, int);
155 static void iwi_wme_init(struct iwi_softc *);
156 static int iwi_wme_setparams(struct iwi_softc *, struct ieee80211com *);
157 static void iwi_update_wme_task(void *, int);
158 static int iwi_wme_update(struct ieee80211com *);
159 static uint16_t iwi_read_prom_word(struct iwi_softc *, uint8_t);
160 static void iwi_frame_intr(struct iwi_softc *, struct iwi_rx_data *, int,
162 static void iwi_notification_intr(struct iwi_softc *, struct iwi_notif *);
163 static void iwi_rx_intr(struct iwi_softc *);
164 static void iwi_tx_intr(struct iwi_softc *, struct iwi_tx_ring *);
165 static void iwi_intr(void *);
166 static int iwi_cmd(struct iwi_softc *, uint8_t, void *, uint8_t);
167 static void iwi_write_ibssnode(struct iwi_softc *, const u_int8_t [], int);
168 static int iwi_tx_start(struct ifnet *, struct mbuf *,
169 struct ieee80211_node *, int);
170 static int iwi_raw_xmit(struct ieee80211_node *, struct mbuf *,
171 const struct ieee80211_bpf_params *);
172 static void iwi_start_locked(struct ifnet *);
173 static void iwi_start(struct ifnet *, struct ifaltq_subque *);
174 static void iwi_watchdog(void *);
175 static int iwi_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *ucred);
176 static void iwi_stop_master(struct iwi_softc *);
177 static int iwi_reset(struct iwi_softc *);
178 static int iwi_load_ucode(struct iwi_softc *, const struct iwi_fw *);
179 static int iwi_load_firmware(struct iwi_softc *, const struct iwi_fw *);
180 static void iwi_release_fw_dma(struct iwi_softc *sc);
181 static int iwi_config(struct iwi_softc *);
182 static int iwi_get_firmware(struct iwi_softc *, enum ieee80211_opmode);
183 static void iwi_put_firmware(struct iwi_softc *);
184 static int iwi_scanchan(struct iwi_softc *, unsigned long, int);
185 static void iwi_scan_start(struct ieee80211com *);
186 static void iwi_scan_end(struct ieee80211com *);
187 static void iwi_set_channel(struct ieee80211com *);
188 static void iwi_scan_curchan(struct ieee80211_scan_state *, unsigned long maxdwell);
189 static void iwi_scan_mindwell(struct ieee80211_scan_state *);
190 static int iwi_auth_and_assoc(struct iwi_softc *, struct ieee80211vap *);
191 static void iwi_disassoc_task(void *, int);
192 static int iwi_disassociate(struct iwi_softc *, int quiet);
193 static void iwi_init_locked(struct iwi_softc *);
194 static void iwi_init(void *);
195 static int iwi_init_fw_dma(struct iwi_softc *, int);
196 static void iwi_stop_locked(void *);
197 static void iwi_stop(struct iwi_softc *);
198 static void iwi_restart_task(void *, int);
199 static int iwi_getrfkill(struct iwi_softc *);
200 static void iwi_radio_on_task(void *, int);
201 static void iwi_radio_off_task(void *, int);
202 static void iwi_sysctlattach(struct iwi_softc *);
203 static void iwi_led_event(struct iwi_softc *, int);
204 static void iwi_ledattach(struct iwi_softc *);
206 static int iwi_probe(device_t);
207 static int iwi_attach(device_t);
208 static int iwi_detach(device_t);
209 static int iwi_shutdown(device_t);
210 static int iwi_suspend(device_t);
211 static int iwi_resume(device_t);
213 static device_method_t iwi_methods[] = {
214 /* Device interface */
215 DEVMETHOD(device_probe, iwi_probe),
216 DEVMETHOD(device_attach, iwi_attach),
217 DEVMETHOD(device_detach, iwi_detach),
218 DEVMETHOD(device_shutdown, iwi_shutdown),
219 DEVMETHOD(device_suspend, iwi_suspend),
220 DEVMETHOD(device_resume, iwi_resume),
225 static driver_t iwi_driver = {
228 sizeof (struct iwi_softc)
231 static devclass_t iwi_devclass;
233 DRIVER_MODULE(iwi, pci, iwi_driver, iwi_devclass, NULL, NULL);
235 static __inline uint8_t
236 MEM_READ_1(struct iwi_softc *sc, uint32_t addr)
238 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr);
239 return CSR_READ_1(sc, IWI_CSR_INDIRECT_DATA);
242 static __inline uint32_t
243 MEM_READ_4(struct iwi_softc *sc, uint32_t addr)
245 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr);
246 return CSR_READ_4(sc, IWI_CSR_INDIRECT_DATA);
250 iwi_probe(device_t dev)
252 const struct iwi_ident *ident;
254 wlan_serialize_enter();
255 for (ident = iwi_ident_table; ident->name != NULL; ident++) {
256 if (pci_get_vendor(dev) == ident->vendor &&
257 pci_get_device(dev) == ident->device) {
258 device_set_desc(dev, ident->name);
259 wlan_serialize_exit();
263 wlan_serialize_exit();
267 /* Base Address Register */
268 #define IWI_PCI_BAR0 0x10
271 iwi_attach(device_t dev)
273 struct iwi_softc *sc = device_get_softc(dev);
275 struct ieee80211com *ic;
279 uint8_t macaddr[IEEE80211_ADDR_LEN];
281 wlan_serialize_enter();
285 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
287 device_printf(dev, "can not if_alloc()\n");
288 wlan_serialize_exit();
293 devfs_clone_bitmap_init(&sc->sc_unr);
295 TASK_INIT(&sc->sc_radiontask, 0, iwi_radio_on_task, sc);
296 TASK_INIT(&sc->sc_radiofftask, 0, iwi_radio_off_task, sc);
297 TASK_INIT(&sc->sc_restarttask, 0, iwi_restart_task, sc);
298 TASK_INIT(&sc->sc_disassoctask, 0, iwi_disassoc_task, sc);
299 TASK_INIT(&sc->sc_wmetask, 0, iwi_update_wme_task, sc);
301 callout_init(&sc->sc_wdtimer_callout);
302 callout_init(&sc->sc_rftimer_callout);
304 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
305 device_printf(dev, "chip is in D%d power mode "
306 "-- setting to D0\n", pci_get_powerstate(dev));
307 pci_set_powerstate(dev, PCI_POWERSTATE_D0);
310 pci_write_config(dev, 0x41, 0, 1);
312 /* enable bus-mastering */
313 pci_enable_busmaster(dev);
315 sc->mem_rid = IWI_PCI_BAR0;
316 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid,
318 if (sc->mem == NULL) {
319 device_printf(dev, "could not allocate memory resource\n");
323 sc->sc_st = rman_get_bustag(sc->mem);
324 sc->sc_sh = rman_get_bushandle(sc->mem);
327 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
328 RF_ACTIVE | RF_SHAREABLE);
329 if (sc->irq == NULL) {
330 device_printf(dev, "could not allocate interrupt resource\n");
334 if (iwi_reset(sc) != 0) {
335 device_printf(dev, "could not reset adapter\n");
342 if (iwi_alloc_cmd_ring(sc, &sc->cmdq, IWI_CMD_RING_COUNT) != 0) {
343 device_printf(dev, "could not allocate Cmd ring\n");
347 for (i = 0; i < 4; i++) {
348 error = iwi_alloc_tx_ring(sc, &sc->txq[i], IWI_TX_RING_COUNT,
349 IWI_CSR_TX1_RIDX + i * 4,
350 IWI_CSR_TX1_WIDX + i * 4);
352 device_printf(dev, "could not allocate Tx ring %d\n",
358 if (iwi_alloc_rx_ring(sc, &sc->rxq, IWI_RX_RING_COUNT) != 0) {
359 device_printf(dev, "could not allocate Rx ring\n");
366 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
367 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
368 ifp->if_init = iwi_init;
369 ifp->if_ioctl = iwi_ioctl;
370 ifp->if_start = iwi_start;
371 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
373 ifq_set_ready(&ifp->if_snd);
377 ic->ic_opmode = IEEE80211_M_STA;
378 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
380 /* set device capabilities */
382 IEEE80211_C_STA /* station mode supported */
383 | IEEE80211_C_IBSS /* IBSS mode supported */
384 | IEEE80211_C_MONITOR /* monitor mode supported */
385 | IEEE80211_C_PMGT /* power save supported */
386 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
387 | IEEE80211_C_WPA /* 802.11i */
388 | IEEE80211_C_WME /* 802.11e */
390 | IEEE80211_C_BGSCAN /* capable of bg scanning */
394 /* read MAC address from EEPROM */
395 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 0);
396 macaddr[0] = val & 0xff;
397 macaddr[1] = val >> 8;
398 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 1);
399 macaddr[2] = val & 0xff;
400 macaddr[3] = val >> 8;
401 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 2);
402 macaddr[4] = val & 0xff;
403 macaddr[5] = val >> 8;
406 setbit(&bands, IEEE80211_MODE_11B);
407 setbit(&bands, IEEE80211_MODE_11G);
408 if (pci_get_device(dev) >= 0x4223)
409 setbit(&bands, IEEE80211_MODE_11A);
410 ieee80211_init_channels(ic, NULL, &bands);
412 ieee80211_ifattach(ic, macaddr);
413 /* override default methods */
414 ic->ic_node_alloc = iwi_node_alloc;
415 sc->sc_node_free = ic->ic_node_free;
416 ic->ic_node_free = iwi_node_free;
417 ic->ic_raw_xmit = iwi_raw_xmit;
418 ic->ic_scan_start = iwi_scan_start;
419 ic->ic_scan_end = iwi_scan_end;
420 ic->ic_set_channel = iwi_set_channel;
421 ic->ic_scan_curchan = iwi_scan_curchan;
422 ic->ic_scan_mindwell = iwi_scan_mindwell;
423 ic->ic_wme.wme_update = iwi_wme_update;
425 ic->ic_vap_create = iwi_vap_create;
426 ic->ic_vap_delete = iwi_vap_delete;
428 ieee80211_radiotap_attach(ic,
429 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
430 IWI_TX_RADIOTAP_PRESENT,
431 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
432 IWI_RX_RADIOTAP_PRESENT);
434 iwi_sysctlattach(sc);
438 * Hook our interrupt after all initialization is complete.
440 error = bus_setup_intr(dev, sc->irq, INTR_MPSAFE,
441 iwi_intr, sc, &sc->sc_ih, &wlan_global_serializer);
443 device_printf(dev, "could not set up interrupt\n");
448 ieee80211_announce(ic);
450 wlan_serialize_exit();
454 wlan_serialize_exit();
460 iwi_detach(device_t dev)
462 struct iwi_softc *sc = device_get_softc(dev);
463 struct ifnet *ifp = sc->sc_ifp;
464 struct ieee80211com *ic = ifp->if_l2com;
466 wlan_serialize_enter();
468 /* NB: do early to drain any pending tasks */
469 ieee80211_draintask(ic, &sc->sc_radiontask);
470 ieee80211_draintask(ic, &sc->sc_radiofftask);
471 ieee80211_draintask(ic, &sc->sc_restarttask);
472 ieee80211_draintask(ic, &sc->sc_disassoctask);
476 ieee80211_ifdetach(ic);
478 iwi_put_firmware(sc);
479 iwi_release_fw_dma(sc);
481 iwi_free_cmd_ring(sc, &sc->cmdq);
482 iwi_free_tx_ring(sc, &sc->txq[0]);
483 iwi_free_tx_ring(sc, &sc->txq[1]);
484 iwi_free_tx_ring(sc, &sc->txq[2]);
485 iwi_free_tx_ring(sc, &sc->txq[3]);
486 iwi_free_rx_ring(sc, &sc->rxq);
488 bus_teardown_intr(dev, sc->irq, sc->sc_ih);
489 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
491 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
493 devfs_clone_bitmap_uninit(&sc->sc_unr);
497 wlan_serialize_exit();
501 static struct ieee80211vap *
502 iwi_vap_create(struct ieee80211com *ic,
503 const char name[IFNAMSIZ], int unit,
504 enum ieee80211_opmode opmode, int flags,
505 const uint8_t bssid[IEEE80211_ADDR_LEN],
506 const uint8_t mac[IEEE80211_ADDR_LEN])
508 struct ifnet *ifp = ic->ic_ifp;
509 struct iwi_softc *sc = ifp->if_softc;
511 struct ieee80211vap *vap;
514 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
517 * Get firmware image (and possibly dma memory) on mode change.
519 if (iwi_get_firmware(sc, opmode))
521 /* allocate DMA memory for mapping firmware image */
523 if (sc->fw_boot.size > i)
524 i = sc->fw_boot.size;
525 /* XXX do we dma the ucode as well ? */
526 if (sc->fw_uc.size > i)
528 if (iwi_init_fw_dma(sc, i))
531 ivp = (struct iwi_vap *) kmalloc(sizeof(struct iwi_vap),
532 M_80211_VAP, M_WAITOK | M_ZERO);
536 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
537 /* override the default, the setting comes from the linux driver */
538 vap->iv_bmissthreshold = 24;
539 /* override with driver methods */
540 ivp->iwi_newstate = vap->iv_newstate;
541 vap->iv_newstate = iwi_newstate;
544 ieee80211_vap_attach(vap, ieee80211_media_change, iwi_media_status);
545 ic->ic_opmode = opmode;
550 iwi_vap_delete(struct ieee80211vap *vap)
552 struct iwi_vap *ivp = IWI_VAP(vap);
554 ieee80211_vap_detach(vap);
555 kfree(ivp, M_80211_VAP);
559 iwi_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error)
564 KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
566 *(bus_addr_t *)arg = segs[0].ds_addr;
570 iwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring, int count)
576 ring->cur = ring->next = 0;
578 error = bus_dma_tag_create(NULL, 4, 0,
579 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
580 count * IWI_CMD_DESC_SIZE, 1, count * IWI_CMD_DESC_SIZE,
581 0 , &ring->desc_dmat);
583 device_printf(sc->sc_dev, "could not create desc DMA tag\n");
587 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc,
588 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map);
590 device_printf(sc->sc_dev, "could not allocate DMA memory\n");
594 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc,
595 count * IWI_CMD_DESC_SIZE, iwi_dma_map_addr, &ring->physaddr, 0);
597 device_printf(sc->sc_dev, "could not load desc DMA map\n");
603 fail: iwi_free_cmd_ring(sc, ring);
608 iwi_reset_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring)
611 ring->cur = ring->next = 0;
615 iwi_free_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring)
617 if (ring->desc != NULL) {
618 bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
619 BUS_DMASYNC_POSTWRITE);
620 bus_dmamap_unload(ring->desc_dmat, ring->desc_map);
621 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map);
624 if (ring->desc_dmat != NULL)
625 bus_dma_tag_destroy(ring->desc_dmat);
629 iwi_alloc_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring, int count,
630 bus_addr_t csr_ridx, bus_addr_t csr_widx)
636 ring->cur = ring->next = 0;
637 ring->csr_ridx = csr_ridx;
638 ring->csr_widx = csr_widx;
640 error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT,
641 BUS_SPACE_MAXADDR, NULL, NULL, count * IWI_TX_DESC_SIZE, 1,
642 count * IWI_TX_DESC_SIZE, 0, &ring->desc_dmat);
644 device_printf(sc->sc_dev, "could not create desc DMA tag\n");
648 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc,
649 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map);
651 device_printf(sc->sc_dev, "could not allocate DMA memory\n");
655 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc,
656 count * IWI_TX_DESC_SIZE, iwi_dma_map_addr, &ring->physaddr, 0);
658 device_printf(sc->sc_dev, "could not load desc DMA map\n");
662 ring->data = kmalloc(count * sizeof (struct iwi_tx_data), M_DEVBUF,
665 error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT,
666 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, IWI_MAX_NSEG,
667 MCLBYTES, 0, &ring->data_dmat);
669 device_printf(sc->sc_dev, "could not create data DMA tag\n");
673 for (i = 0; i < count; i++) {
674 error = bus_dmamap_create(ring->data_dmat, 0,
677 device_printf(sc->sc_dev, "could not create DMA map\n");
684 fail: iwi_free_tx_ring(sc, ring);
689 iwi_reset_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring)
691 struct iwi_tx_data *data;
694 for (i = 0; i < ring->count; i++) {
695 data = &ring->data[i];
697 if (data->m != NULL) {
698 bus_dmamap_sync(ring->data_dmat, data->map,
699 BUS_DMASYNC_POSTWRITE);
700 bus_dmamap_unload(ring->data_dmat, data->map);
705 if (data->ni != NULL) {
706 ieee80211_free_node(data->ni);
712 ring->cur = ring->next = 0;
716 iwi_free_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring)
718 struct iwi_tx_data *data;
721 if (ring->desc != NULL) {
722 bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
723 BUS_DMASYNC_POSTWRITE);
724 bus_dmamap_unload(ring->desc_dmat, ring->desc_map);
725 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map);
728 if (ring->desc_dmat != NULL)
729 bus_dma_tag_destroy(ring->desc_dmat);
731 if (ring->data != NULL) {
732 for (i = 0; i < ring->count; i++) {
733 data = &ring->data[i];
735 if (data->m != NULL) {
736 bus_dmamap_sync(ring->data_dmat, data->map,
737 BUS_DMASYNC_POSTWRITE);
738 bus_dmamap_unload(ring->data_dmat, data->map);
742 if (data->ni != NULL)
743 ieee80211_free_node(data->ni);
745 if (data->map != NULL)
746 bus_dmamap_destroy(ring->data_dmat, data->map);
749 kfree(ring->data, M_DEVBUF);
752 if (ring->data_dmat != NULL)
753 bus_dma_tag_destroy(ring->data_dmat);
757 iwi_alloc_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring, int count)
759 struct iwi_rx_data *data;
765 ring->data = kmalloc(count * sizeof (struct iwi_rx_data), M_DEVBUF,
768 error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT,
769 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1, MCLBYTES,
770 0, &ring->data_dmat);
772 device_printf(sc->sc_dev, "could not create data DMA tag\n");
776 for (i = 0; i < count; i++) {
777 data = &ring->data[i];
779 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
781 device_printf(sc->sc_dev, "could not create DMA map\n");
785 data->m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
786 if (data->m == NULL) {
787 device_printf(sc->sc_dev,
788 "could not allocate rx mbuf\n");
793 error = bus_dmamap_load(ring->data_dmat, data->map,
794 mtod(data->m, void *), MCLBYTES, iwi_dma_map_addr,
797 device_printf(sc->sc_dev,
798 "could not load rx buf DMA map");
802 data->reg = IWI_CSR_RX_BASE + i * 4;
807 fail: iwi_free_rx_ring(sc, ring);
812 iwi_reset_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring)
818 iwi_free_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring)
820 struct iwi_rx_data *data;
823 if (ring->data != NULL) {
824 for (i = 0; i < ring->count; i++) {
825 data = &ring->data[i];
827 if (data->m != NULL) {
828 bus_dmamap_sync(ring->data_dmat, data->map,
829 BUS_DMASYNC_POSTREAD);
830 bus_dmamap_unload(ring->data_dmat, data->map);
834 if (data->map != NULL)
835 bus_dmamap_destroy(ring->data_dmat, data->map);
838 kfree(ring->data, M_DEVBUF);
841 if (ring->data_dmat != NULL)
842 bus_dma_tag_destroy(ring->data_dmat);
846 iwi_shutdown(device_t dev)
848 struct iwi_softc *sc = device_get_softc(dev);
850 wlan_serialize_enter();
852 iwi_put_firmware(sc); /* ??? XXX */
853 wlan_serialize_exit();
859 iwi_suspend(device_t dev)
861 struct iwi_softc *sc = device_get_softc(dev);
863 wlan_serialize_enter();
865 wlan_serialize_exit();
871 iwi_resume(device_t dev)
873 struct iwi_softc *sc = device_get_softc(dev);
874 struct ifnet *ifp = sc->sc_ifp;
876 wlan_serialize_enter();
877 pci_write_config(dev, 0x41, 0, 1);
879 if (ifp->if_flags & IFF_UP)
882 wlan_serialize_exit();
886 static struct ieee80211_node *
887 iwi_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN])
891 in = kmalloc(sizeof (struct iwi_node), M_80211_NODE, M_NOWAIT | M_ZERO);
894 /* XXX assign sta table entry for adhoc */
901 iwi_node_free(struct ieee80211_node *ni)
903 struct ieee80211com *ic = ni->ni_ic;
904 struct iwi_softc *sc = ic->ic_ifp->if_softc;
905 struct iwi_node *in = (struct iwi_node *)ni;
906 char ethstr[ETHER_ADDRSTRLEN + 1];
908 if (in->in_station != -1) {
909 DPRINTF(("%s mac %s station %u\n", __func__,
910 kether_ntoa(ni->ni_macaddr, ethstr), in->in_station));
911 devfs_clone_bitmap_put(&sc->sc_unr, in->in_station);
914 sc->sc_node_free(ni);
918 * Convert h/w rate code to IEEE rate code.
921 iwi_cvtrate(int iwirate)
924 case IWI_RATE_DS1: return 2;
925 case IWI_RATE_DS2: return 4;
926 case IWI_RATE_DS5: return 11;
927 case IWI_RATE_DS11: return 22;
928 case IWI_RATE_OFDM6: return 12;
929 case IWI_RATE_OFDM9: return 18;
930 case IWI_RATE_OFDM12: return 24;
931 case IWI_RATE_OFDM18: return 36;
932 case IWI_RATE_OFDM24: return 48;
933 case IWI_RATE_OFDM36: return 72;
934 case IWI_RATE_OFDM48: return 96;
935 case IWI_RATE_OFDM54: return 108;
941 * The firmware automatically adapts the transmit speed. We report its current
945 iwi_media_status(struct ifnet *ifp, struct ifmediareq *imr)
947 struct ieee80211vap *vap = ifp->if_softc;
948 struct ieee80211com *ic = vap->iv_ic;
949 struct iwi_softc *sc = ic->ic_ifp->if_softc;
951 /* read current transmission rate from adapter */
952 vap->iv_bss->ni_txrate =
953 iwi_cvtrate(CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE));
954 ieee80211_media_status(ifp, imr);
958 iwi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
960 struct iwi_vap *ivp = IWI_VAP(vap);
961 struct ieee80211com *ic = vap->iv_ic;
962 struct ifnet *ifp = ic->ic_ifp;
963 struct iwi_softc *sc = ifp->if_softc;
965 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__,
966 ieee80211_state_name[vap->iv_state],
967 ieee80211_state_name[nstate], sc->flags));
970 case IEEE80211_S_INIT:
972 * NB: don't try to do this if iwi_stop_master has
973 * shutdown the firmware and disabled interrupts.
975 if (vap->iv_state == IEEE80211_S_RUN &&
976 (sc->flags & IWI_FLAG_FW_INITED))
977 iwi_disassociate(sc, 0);
979 case IEEE80211_S_AUTH:
980 iwi_auth_and_assoc(sc, vap);
982 case IEEE80211_S_RUN:
983 if (vap->iv_opmode == IEEE80211_M_IBSS &&
984 vap->iv_state == IEEE80211_S_SCAN) {
986 * XXX when joining an ibss network we are called
987 * with a SCAN -> RUN transition on scan complete.
988 * Use that to call iwi_auth_and_assoc. On completing
989 * the join we are then called again with an
990 * AUTH -> RUN transition and we want to do nothing.
991 * This is all totally bogus and needs to be redone.
993 iwi_auth_and_assoc(sc, vap);
996 case IEEE80211_S_ASSOC:
998 * If we are transitioning from AUTH then just wait
999 * for the ASSOC status to come back from the firmware.
1000 * Otherwise we need to issue the association request.
1002 if (vap->iv_state == IEEE80211_S_AUTH)
1004 iwi_auth_and_assoc(sc, vap);
1010 return ivp->iwi_newstate(vap, nstate, arg);
1014 * WME parameters coming from IEEE 802.11e specification. These values are
1015 * already declared in ieee80211_proto.c, but they are static so they can't
1018 static const struct wmeParams iwi_wme_cck_params[WME_NUM_AC] = {
1019 { 0, 3, 5, 7, 0 }, /* WME_AC_BE */
1020 { 0, 3, 5, 10, 0 }, /* WME_AC_BK */
1021 { 0, 2, 4, 5, 188 }, /* WME_AC_VI */
1022 { 0, 2, 3, 4, 102 } /* WME_AC_VO */
1025 static const struct wmeParams iwi_wme_ofdm_params[WME_NUM_AC] = {
1026 { 0, 3, 4, 6, 0 }, /* WME_AC_BE */
1027 { 0, 3, 4, 10, 0 }, /* WME_AC_BK */
1028 { 0, 2, 3, 4, 94 }, /* WME_AC_VI */
1029 { 0, 2, 2, 3, 47 } /* WME_AC_VO */
1031 #define IWI_EXP2(v) htole16((1 << (v)) - 1)
1032 #define IWI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v))
1035 iwi_wme_init(struct iwi_softc *sc)
1037 const struct wmeParams *wmep;
1040 memset(sc->wme, 0, sizeof sc->wme);
1041 for (ac = 0; ac < WME_NUM_AC; ac++) {
1042 /* set WME values for CCK modulation */
1043 wmep = &iwi_wme_cck_params[ac];
1044 sc->wme[1].aifsn[ac] = wmep->wmep_aifsn;
1045 sc->wme[1].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin);
1046 sc->wme[1].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax);
1047 sc->wme[1].burst[ac] = IWI_USEC(wmep->wmep_txopLimit);
1048 sc->wme[1].acm[ac] = wmep->wmep_acm;
1050 /* set WME values for OFDM modulation */
1051 wmep = &iwi_wme_ofdm_params[ac];
1052 sc->wme[2].aifsn[ac] = wmep->wmep_aifsn;
1053 sc->wme[2].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin);
1054 sc->wme[2].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax);
1055 sc->wme[2].burst[ac] = IWI_USEC(wmep->wmep_txopLimit);
1056 sc->wme[2].acm[ac] = wmep->wmep_acm;
1061 iwi_wme_setparams(struct iwi_softc *sc, struct ieee80211com *ic)
1063 const struct wmeParams *wmep;
1066 for (ac = 0; ac < WME_NUM_AC; ac++) {
1067 /* set WME values for current operating mode */
1068 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac];
1069 sc->wme[0].aifsn[ac] = wmep->wmep_aifsn;
1070 sc->wme[0].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin);
1071 sc->wme[0].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax);
1072 sc->wme[0].burst[ac] = IWI_USEC(wmep->wmep_txopLimit);
1073 sc->wme[0].acm[ac] = wmep->wmep_acm;
1076 DPRINTF(("Setting WME parameters\n"));
1077 return iwi_cmd(sc, IWI_CMD_SET_WME_PARAMS, sc->wme, sizeof sc->wme);
1083 iwi_update_wme_task(void *arg, int npending)
1085 struct ieee80211com *ic = arg;
1086 struct iwi_softc *sc = ic->ic_ifp->if_softc;
1088 wlan_serialize_enter();
1089 (void) iwi_wme_setparams(sc, ic);
1090 wlan_serialize_exit();
1094 iwi_wme_update(struct ieee80211com *ic)
1096 struct iwi_softc *sc = ic->ic_ifp->if_softc;
1097 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1100 * We may be called to update the WME parameters in
1101 * the adapter at various places. If we're already
1102 * associated then initiate the request immediately;
1103 * otherwise we assume the params will get sent down
1104 * to the adapter as part of the work iwi_auth_and_assoc
1107 if (vap->iv_state == IEEE80211_S_RUN)
1108 ieee80211_runtask(ic, &sc->sc_wmetask);
1113 iwi_wme_setie(struct iwi_softc *sc)
1115 struct ieee80211_wme_info wme;
1117 memset(&wme, 0, sizeof wme);
1118 wme.wme_id = IEEE80211_ELEMID_VENDOR;
1119 wme.wme_len = sizeof (struct ieee80211_wme_info) - 2;
1120 wme.wme_oui[0] = 0x00;
1121 wme.wme_oui[1] = 0x50;
1122 wme.wme_oui[2] = 0xf2;
1123 wme.wme_type = WME_OUI_TYPE;
1124 wme.wme_subtype = WME_INFO_OUI_SUBTYPE;
1125 wme.wme_version = WME_VERSION;
1128 DPRINTF(("Setting WME IE (len=%u)\n", wme.wme_len));
1129 return iwi_cmd(sc, IWI_CMD_SET_WMEIE, &wme, sizeof wme);
1133 * Read 16 bits at address 'addr' from the serial EEPROM.
1136 iwi_read_prom_word(struct iwi_softc *sc, uint8_t addr)
1142 /* clock C once before the first command */
1143 IWI_EEPROM_CTL(sc, 0);
1144 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1145 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C);
1146 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1148 /* write start bit (1) */
1149 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D);
1150 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C);
1152 /* write READ opcode (10) */
1153 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D);
1154 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C);
1155 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1156 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C);
1158 /* write address A7-A0 */
1159 for (n = 7; n >= 0; n--) {
1160 IWI_EEPROM_CTL(sc, IWI_EEPROM_S |
1161 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D));
1162 IWI_EEPROM_CTL(sc, IWI_EEPROM_S |
1163 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D) | IWI_EEPROM_C);
1166 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1168 /* read data Q15-Q0 */
1170 for (n = 15; n >= 0; n--) {
1171 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C);
1172 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1173 tmp = MEM_READ_4(sc, IWI_MEM_EEPROM_CTL);
1174 val |= ((tmp & IWI_EEPROM_Q) >> IWI_EEPROM_SHIFT_Q) << n;
1177 IWI_EEPROM_CTL(sc, 0);
1179 /* clear Chip Select and clock C */
1180 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1181 IWI_EEPROM_CTL(sc, 0);
1182 IWI_EEPROM_CTL(sc, IWI_EEPROM_C);
1188 iwi_setcurchan(struct iwi_softc *sc, int chan)
1190 struct ifnet *ifp = sc->sc_ifp;
1191 struct ieee80211com *ic = ifp->if_l2com;
1194 ieee80211_radiotap_chan_change(ic);
1198 iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i,
1199 struct iwi_frame *frame)
1201 struct ifnet *ifp = sc->sc_ifp;
1202 struct ieee80211com *ic = ifp->if_l2com;
1203 struct mbuf *mnew, *m;
1204 struct ieee80211_node *ni;
1205 int type, error, framelen;
1208 framelen = le16toh(frame->len);
1209 if (framelen < IEEE80211_MIN_LEN || framelen > MCLBYTES) {
1211 * XXX >MCLBYTES is bogus as it means the h/w dma'd
1212 * out of bounds; need to figure out how to limit
1213 * frame size in the firmware
1217 ("drop rx frame len=%u chan=%u rssi=%u rssi_dbm=%u\n",
1218 le16toh(frame->len), frame->chan, frame->rssi,
1223 DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u rssi_dbm=%u\n",
1224 le16toh(frame->len), frame->chan, frame->rssi, frame->rssi_dbm));
1226 if (frame->chan != sc->curchan)
1227 iwi_setcurchan(sc, frame->chan);
1230 * Try to allocate a new mbuf for this ring element and load it before
1231 * processing the current mbuf. If the ring element cannot be loaded,
1232 * drop the received packet and reuse the old mbuf. In the unlikely
1233 * case that the old mbuf can't be reloaded either, explicitly panic.
1235 mnew = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1237 IFNET_STAT_INC(ifp, ierrors, 1);
1241 bus_dmamap_unload(sc->rxq.data_dmat, data->map);
1243 error = bus_dmamap_load(sc->rxq.data_dmat, data->map,
1244 mtod(mnew, void *), MCLBYTES, iwi_dma_map_addr, &data->physaddr,
1249 /* try to reload the old mbuf */
1250 error = bus_dmamap_load(sc->rxq.data_dmat, data->map,
1251 mtod(data->m, void *), MCLBYTES, iwi_dma_map_addr,
1252 &data->physaddr, 0);
1254 /* very unlikely that it will fail... */
1255 panic("%s: could not load old rx mbuf",
1256 device_get_name(sc->sc_dev));
1258 IFNET_STAT_INC(ifp, ierrors, 1);
1263 * New mbuf successfully loaded, update Rx ring and continue
1268 CSR_WRITE_4(sc, data->reg, data->physaddr);
1271 m->m_pkthdr.rcvif = ifp;
1272 m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) +
1273 sizeof (struct iwi_frame) + framelen;
1275 m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame));
1277 rssi = frame->rssi_dbm;
1279 if (ieee80211_radiotap_active(ic)) {
1280 struct iwi_rx_radiotap_header *tap = &sc->sc_rxtap;
1283 tap->wr_antsignal = rssi;
1284 tap->wr_antnoise = nf;
1285 tap->wr_rate = iwi_cvtrate(frame->rate);
1286 tap->wr_antenna = frame->antenna;
1289 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *));
1291 type = ieee80211_input(ni, m, rssi, nf);
1292 ieee80211_free_node(ni);
1294 type = ieee80211_input_all(ic, m, rssi, nf);
1296 if (sc->sc_softled) {
1298 * Blink for any data frame. Otherwise do a
1299 * heartbeat-style blink when idle. The latter
1300 * is mainly for station mode where we depend on
1301 * periodic beacon frames to trigger the poll event.
1303 if (type == IEEE80211_FC0_TYPE_DATA) {
1304 sc->sc_rxrate = frame->rate;
1305 iwi_led_event(sc, IWI_LED_RX);
1306 } else if (ticks - sc->sc_ledevent >= sc->sc_ledidle)
1307 iwi_led_event(sc, IWI_LED_POLL);
1312 * Check for an association response frame to see if QoS
1313 * has been negotiated. We parse just enough to figure
1314 * out if we're supposed to use QoS. The proper solution
1315 * is to pass the frame up so ieee80211_input can do the
1316 * work but that's made hard by how things currently are
1317 * done in the driver.
1320 iwi_checkforqos(struct ieee80211vap *vap,
1321 const struct ieee80211_frame *wh, int len)
1323 #define SUBTYPE(wh) ((wh)->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK)
1324 const uint8_t *frm, *efrm, *wme;
1325 struct ieee80211_node *ni;
1326 uint16_t capinfo, associd;
1328 /* NB: +8 for capinfo, status, associd, and first ie */
1329 if (!(sizeof(*wh)+8 < len && len < IEEE80211_MAX_LEN) ||
1330 SUBTYPE(wh) != IEEE80211_FC0_SUBTYPE_ASSOC_RESP)
1333 * asresp frame format
1334 * [2] capability information
1336 * [2] association ID
1337 * [tlv] supported rates
1338 * [tlv] extended supported rates
1341 frm = (const uint8_t *)&wh[1];
1342 efrm = ((const uint8_t *) wh) + len;
1344 capinfo = le16toh(*(const uint16_t *)frm);
1347 associd = le16toh(*(const uint16_t *)frm);
1351 while (frm < efrm) {
1352 IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1], return);
1354 case IEEE80211_ELEMID_VENDOR:
1363 ni->ni_capinfo = capinfo;
1364 ni->ni_associd = associd;
1366 ni->ni_flags |= IEEE80211_NODE_QOS;
1368 ni->ni_flags &= ~IEEE80211_NODE_QOS;
1373 * Task queue callbacks for iwi_notification_intr used to avoid LOR's.
1377 iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif)
1379 struct ifnet *ifp = sc->sc_ifp;
1380 struct ieee80211com *ic = ifp->if_l2com;
1381 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1382 struct iwi_notif_scan_channel *chan;
1383 struct iwi_notif_scan_complete *scan;
1384 struct iwi_notif_authentication *auth;
1385 struct iwi_notif_association *assoc;
1386 struct iwi_notif_beacon_state *beacon;
1388 switch (notif->type) {
1389 case IWI_NOTIF_TYPE_SCAN_CHANNEL:
1390 chan = (struct iwi_notif_scan_channel *)(notif + 1);
1392 DPRINTFN(3, ("Scan of channel %u complete (%u)\n",
1393 ieee80211_ieee2mhz(chan->nchan, 0), chan->nchan));
1395 /* Reset the timer, the scan is still going */
1396 sc->sc_state_timer = 3;
1399 case IWI_NOTIF_TYPE_SCAN_COMPLETE:
1400 scan = (struct iwi_notif_scan_complete *)(notif + 1);
1402 DPRINTFN(2, ("Scan completed (%u, %u)\n", scan->nchan,
1405 IWI_STATE_END(sc, IWI_FW_SCANNING);
1407 if (scan->status == IWI_SCAN_COMPLETED) {
1408 /* NB: don't need to defer, net80211 does it for us */
1409 ieee80211_scan_next(vap);
1413 case IWI_NOTIF_TYPE_AUTHENTICATION:
1414 auth = (struct iwi_notif_authentication *)(notif + 1);
1415 switch (auth->state) {
1416 case IWI_AUTH_SUCCESS:
1417 DPRINTFN(2, ("Authentication succeeeded\n"));
1418 ieee80211_new_state(vap, IEEE80211_S_ASSOC, -1);
1422 * These are delivered as an unsolicited deauth
1423 * (e.g. due to inactivity) or in response to an
1424 * associate request.
1426 sc->flags &= ~IWI_FLAG_ASSOCIATED;
1427 if (vap->iv_state != IEEE80211_S_RUN) {
1428 DPRINTFN(2, ("Authentication failed\n"));
1429 vap->iv_stats.is_rx_auth_fail++;
1430 IWI_STATE_END(sc, IWI_FW_ASSOCIATING);
1432 DPRINTFN(2, ("Deauthenticated\n"));
1433 vap->iv_stats.is_rx_deauth++;
1435 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1);
1437 case IWI_AUTH_SENT_1:
1438 case IWI_AUTH_RECV_2:
1439 case IWI_AUTH_SEQ1_PASS:
1441 case IWI_AUTH_SEQ1_FAIL:
1442 DPRINTFN(2, ("Initial authentication handshake failed; "
1443 "you probably need shared key\n"));
1444 vap->iv_stats.is_rx_auth_fail++;
1445 IWI_STATE_END(sc, IWI_FW_ASSOCIATING);
1446 /* XXX retry shared key when in auto */
1449 device_printf(sc->sc_dev,
1450 "unknown authentication state %u\n", auth->state);
1455 case IWI_NOTIF_TYPE_ASSOCIATION:
1456 assoc = (struct iwi_notif_association *)(notif + 1);
1457 switch (assoc->state) {
1458 case IWI_AUTH_SUCCESS:
1459 /* re-association, do nothing */
1461 case IWI_ASSOC_SUCCESS:
1462 DPRINTFN(2, ("Association succeeded\n"));
1463 sc->flags |= IWI_FLAG_ASSOCIATED;
1464 IWI_STATE_END(sc, IWI_FW_ASSOCIATING);
1465 iwi_checkforqos(vap,
1466 (const struct ieee80211_frame *)(assoc+1),
1467 le16toh(notif->len) - sizeof(*assoc));
1468 ieee80211_new_state(vap, IEEE80211_S_RUN, -1);
1470 case IWI_ASSOC_INIT:
1471 sc->flags &= ~IWI_FLAG_ASSOCIATED;
1472 switch (sc->fw_state) {
1473 case IWI_FW_ASSOCIATING:
1474 DPRINTFN(2, ("Association failed\n"));
1475 IWI_STATE_END(sc, IWI_FW_ASSOCIATING);
1476 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1);
1479 case IWI_FW_DISASSOCIATING:
1480 DPRINTFN(2, ("Dissassociated\n"));
1481 IWI_STATE_END(sc, IWI_FW_DISASSOCIATING);
1482 vap->iv_stats.is_rx_disassoc++;
1483 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1);
1488 device_printf(sc->sc_dev,
1489 "unknown association state %u\n", assoc->state);
1494 case IWI_NOTIF_TYPE_BEACON:
1495 /* XXX check struct length */
1496 beacon = (struct iwi_notif_beacon_state *)(notif + 1);
1498 DPRINTFN(5, ("Beacon state (%u, %u)\n",
1499 beacon->state, le32toh(beacon->number)));
1501 if (beacon->state == IWI_BEACON_MISS) {
1503 * The firmware notifies us of every beacon miss
1504 * so we need to track the count against the
1505 * configured threshold before notifying the
1507 * XXX try to roam, drop assoc only on much higher count
1509 if (le32toh(beacon->number) >= vap->iv_bmissthreshold) {
1510 DPRINTF(("Beacon miss: %u >= %u\n",
1511 le32toh(beacon->number),
1512 vap->iv_bmissthreshold));
1513 vap->iv_stats.is_beacon_miss++;
1515 * It's pointless to notify the 802.11 layer
1516 * as it'll try to send a probe request (which
1517 * we'll discard) and then timeout and drop us
1518 * into scan state. Instead tell the firmware
1519 * to disassociate and then on completion we'll
1520 * kick the state machine to scan.
1522 ieee80211_runtask(ic, &sc->sc_disassoctask);
1527 case IWI_NOTIF_TYPE_CALIBRATION:
1528 case IWI_NOTIF_TYPE_NOISE:
1529 case IWI_NOTIF_TYPE_LINK_QUALITY:
1530 DPRINTFN(5, ("Notification (%u)\n", notif->type));
1534 DPRINTF(("unknown notification type %u flags 0x%x len %u\n",
1535 notif->type, notif->flags, le16toh(notif->len)));
1541 iwi_rx_intr(struct iwi_softc *sc)
1543 struct iwi_rx_data *data;
1544 struct iwi_hdr *hdr;
1547 hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX);
1549 for (; sc->rxq.cur != hw;) {
1550 data = &sc->rxq.data[sc->rxq.cur];
1552 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
1553 BUS_DMASYNC_POSTREAD);
1555 hdr = mtod(data->m, struct iwi_hdr *);
1557 switch (hdr->type) {
1558 case IWI_HDR_TYPE_FRAME:
1559 iwi_frame_intr(sc, data, sc->rxq.cur,
1560 (struct iwi_frame *)(hdr + 1));
1563 case IWI_HDR_TYPE_NOTIF:
1564 iwi_notification_intr(sc,
1565 (struct iwi_notif *)(hdr + 1));
1569 device_printf(sc->sc_dev, "unknown hdr type %u\n",
1573 DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur));
1575 sc->rxq.cur = (sc->rxq.cur + 1) % IWI_RX_RING_COUNT;
1578 /* tell the firmware what we have processed */
1579 hw = (hw == 0) ? IWI_RX_RING_COUNT - 1 : hw - 1;
1580 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw);
1584 iwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq)
1586 struct ifnet *ifp = sc->sc_ifp;
1587 struct iwi_tx_data *data;
1590 hw = CSR_READ_4(sc, txq->csr_ridx);
1592 for (; txq->next != hw;) {
1593 data = &txq->data[txq->next];
1595 bus_dmamap_sync(txq->data_dmat, data->map,
1596 BUS_DMASYNC_POSTWRITE);
1597 bus_dmamap_unload(txq->data_dmat, data->map);
1598 if (data->m->m_flags & M_TXCB)
1599 ieee80211_process_callback(data->ni, data->m, 0/*XXX*/);
1602 ieee80211_free_node(data->ni);
1605 DPRINTFN(15, ("tx done idx=%u\n", txq->next));
1607 IFNET_STAT_INC(ifp, opackets, 1);
1610 txq->next = (txq->next + 1) % IWI_TX_RING_COUNT;
1613 sc->sc_tx_timer = 0;
1614 ifq_clr_oactive(&ifp->if_snd);
1617 iwi_led_event(sc, IWI_LED_TX);
1619 iwi_start_locked(ifp);
1623 iwi_fatal_error_intr(struct iwi_softc *sc)
1625 struct ifnet *ifp = sc->sc_ifp;
1626 struct ieee80211com *ic = ifp->if_l2com;
1627 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1629 device_printf(sc->sc_dev, "firmware error\n");
1631 ieee80211_cancel_scan(vap);
1632 ieee80211_runtask(ic, &sc->sc_restarttask);
1634 sc->flags &= ~IWI_FLAG_BUSY;
1635 sc->sc_busy_timer = 0;
1640 iwi_radio_off_intr(struct iwi_softc *sc)
1642 struct ifnet *ifp = sc->sc_ifp;
1643 struct ieee80211com *ic = ifp->if_l2com;
1645 ieee80211_runtask(ic, &sc->sc_radiofftask);
1651 struct iwi_softc *sc = arg;
1654 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) {
1658 /* acknowledge interrupts */
1659 CSR_WRITE_4(sc, IWI_CSR_INTR, r);
1661 if (r & IWI_INTR_FATAL_ERROR) {
1662 iwi_fatal_error_intr(sc);
1666 if (r & IWI_INTR_FW_INITED) {
1667 if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR)))
1671 if (r & IWI_INTR_RADIO_OFF)
1672 iwi_radio_off_intr(sc);
1674 if (r & IWI_INTR_CMD_DONE) {
1675 sc->flags &= ~IWI_FLAG_BUSY;
1676 sc->sc_busy_timer = 0;
1680 if (r & IWI_INTR_TX1_DONE)
1681 iwi_tx_intr(sc, &sc->txq[0]);
1683 if (r & IWI_INTR_TX2_DONE)
1684 iwi_tx_intr(sc, &sc->txq[1]);
1686 if (r & IWI_INTR_TX3_DONE)
1687 iwi_tx_intr(sc, &sc->txq[2]);
1689 if (r & IWI_INTR_TX4_DONE)
1690 iwi_tx_intr(sc, &sc->txq[3]);
1692 if (r & IWI_INTR_RX_DONE)
1695 if (r & IWI_INTR_PARITY_ERROR) {
1696 /* XXX rate-limit */
1697 device_printf(sc->sc_dev, "parity error\n");
1702 iwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len)
1704 struct iwi_cmd_desc *desc;
1706 if (sc->flags & IWI_FLAG_BUSY) {
1707 device_printf(sc->sc_dev, "%s: cmd %d not sent, busy\n",
1712 sc->flags |= IWI_FLAG_BUSY;
1713 sc->sc_busy_timer = 2;
1715 desc = &sc->cmdq.desc[sc->cmdq.cur];
1717 desc->hdr.type = IWI_HDR_TYPE_COMMAND;
1718 desc->hdr.flags = IWI_HDR_FLAG_IRQ;
1721 memcpy(desc->data, data, len);
1723 bus_dmamap_sync(sc->cmdq.desc_dmat, sc->cmdq.desc_map,
1724 BUS_DMASYNC_PREWRITE);
1726 DPRINTFN(2, ("sending command idx=%u type=%u len=%u\n", sc->cmdq.cur,
1729 sc->cmdq.cur = (sc->cmdq.cur + 1) % IWI_CMD_RING_COUNT;
1730 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur);
1732 return zsleep(sc, &wlan_global_serializer, 0, "iwicmd", hz);
1736 iwi_write_ibssnode(struct iwi_softc *sc,
1737 const u_int8_t addr[IEEE80211_ADDR_LEN], int entry)
1739 struct iwi_ibssnode node;
1740 char ethstr[ETHER_ADDRSTRLEN + 1];
1742 /* write node information into NIC memory */
1743 memset(&node, 0, sizeof node);
1744 IEEE80211_ADDR_COPY(node.bssid, addr);
1746 DPRINTF(("%s mac %s station %u\n", __func__, kether_ntoa(node.bssid, ethstr), entry));
1748 CSR_WRITE_REGION_1(sc,
1749 IWI_CSR_NODE_BASE + entry * sizeof node,
1750 (uint8_t *)&node, sizeof node);
1754 iwi_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni,
1757 struct iwi_softc *sc = ifp->if_softc;
1758 struct ieee80211vap *vap = ni->ni_vap;
1759 struct ieee80211com *ic = ni->ni_ic;
1760 struct iwi_node *in = (struct iwi_node *)ni;
1761 const struct ieee80211_frame *wh;
1762 struct ieee80211_key *k;
1763 const struct chanAccParams *cap;
1764 struct iwi_tx_ring *txq = &sc->txq[ac];
1765 struct iwi_tx_data *data;
1766 struct iwi_tx_desc *desc;
1768 bus_dma_segment_t segs[IWI_MAX_NSEG];
1769 int error, nsegs, hdrlen, i;
1770 int ismcast, flags, xflags, staid;
1772 wh = mtod(m0, const struct ieee80211_frame *);
1773 /* NB: only data frames use this path */
1774 hdrlen = ieee80211_hdrsize(wh);
1775 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1);
1779 flags |= IWI_DATA_FLAG_NEED_ACK;
1780 if (vap->iv_flags & IEEE80211_F_SHPREAMBLE)
1781 flags |= IWI_DATA_FLAG_SHPREAMBLE;
1782 if (IEEE80211_QOS_HAS_SEQ(wh)) {
1783 xflags |= IWI_DATA_XFLAG_QOS;
1784 cap = &ic->ic_wme.wme_chanParams;
1785 if (!cap->cap_wmeParams[ac].wmep_noackPolicy)
1786 flags &= ~IWI_DATA_FLAG_NEED_ACK;
1790 * This is only used in IBSS mode where the firmware expect an index
1791 * in a h/w table instead of a destination address.
1793 if (vap->iv_opmode == IEEE80211_M_IBSS) {
1795 if (in->in_station == -1) {
1796 in->in_station = devfs_clone_bitmap_get(&sc->sc_unr,
1797 IWI_MAX_IBSSNODE-1);
1798 if (in->in_station == -1) {
1799 /* h/w table is full */
1801 ieee80211_free_node(ni);
1802 IFNET_STAT_INC(ifp, oerrors, 1);
1805 iwi_write_ibssnode(sc,
1806 ni->ni_macaddr, in->in_station);
1808 staid = in->in_station;
1811 * Multicast addresses have no associated node
1812 * so there will be no station entry. We reserve
1813 * entry 0 for one mcast address and use that.
1814 * If there are many being used this will be
1815 * expensive and we'll need to do a better job
1816 * but for now this handles the broadcast case.
1818 if (!IEEE80211_ADDR_EQ(wh->i_addr1, sc->sc_mcast)) {
1819 IEEE80211_ADDR_COPY(sc->sc_mcast, wh->i_addr1);
1820 iwi_write_ibssnode(sc, sc->sc_mcast, 0);
1827 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1828 k = ieee80211_crypto_encap(ni, m0);
1834 /* packet header may have moved, reset our local pointer */
1835 wh = mtod(m0, struct ieee80211_frame *);
1838 if (ieee80211_radiotap_active_vap(vap)) {
1839 struct iwi_tx_radiotap_header *tap = &sc->sc_txtap;
1843 ieee80211_radiotap_tx(vap, m0);
1846 data = &txq->data[txq->cur];
1847 desc = &txq->desc[txq->cur];
1849 /* save and trim IEEE802.11 header */
1850 m_copydata(m0, 0, hdrlen, (caddr_t)&desc->wh);
1853 error = bus_dmamap_load_mbuf_segment(txq->data_dmat, data->map,
1854 m0, segs, 1, &nsegs, BUS_DMA_NOWAIT);
1855 if (error != 0 && error != EFBIG) {
1856 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1862 mnew = m_defrag(m0, M_NOWAIT);
1864 device_printf(sc->sc_dev,
1865 "could not defragment mbuf\n");
1871 error = bus_dmamap_load_mbuf_segment(txq->data_dmat,
1872 data->map, m0, segs, 1, &nsegs, BUS_DMA_NOWAIT);
1874 device_printf(sc->sc_dev,
1875 "could not map mbuf (error %d)\n", error);
1884 desc->hdr.type = IWI_HDR_TYPE_DATA;
1885 desc->hdr.flags = IWI_HDR_FLAG_IRQ;
1886 desc->station = staid;
1887 desc->cmd = IWI_DATA_CMD_TX;
1888 desc->len = htole16(m0->m_pkthdr.len);
1889 desc->flags = flags;
1890 desc->xflags = xflags;
1893 if (vap->iv_flags & IEEE80211_F_PRIVACY)
1894 desc->wep_txkey = vap->iv_def_txkey;
1897 desc->flags |= IWI_DATA_FLAG_NO_WEP;
1899 desc->nseg = htole32(nsegs);
1900 for (i = 0; i < nsegs; i++) {
1901 desc->seg_addr[i] = htole32(segs[i].ds_addr);
1902 desc->seg_len[i] = htole16(segs[i].ds_len);
1905 bus_dmamap_sync(txq->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1906 bus_dmamap_sync(txq->desc_dmat, txq->desc_map, BUS_DMASYNC_PREWRITE);
1908 DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n",
1909 ac, txq->cur, le16toh(desc->len), nsegs));
1912 txq->cur = (txq->cur + 1) % IWI_TX_RING_COUNT;
1913 CSR_WRITE_4(sc, txq->csr_widx, txq->cur);
1919 iwi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
1920 const struct ieee80211_bpf_params *params)
1922 /* no support; just discard */
1924 ieee80211_free_node(ni);
1929 iwi_start_locked(struct ifnet *ifp)
1931 struct iwi_softc *sc = ifp->if_softc;
1933 struct ieee80211_node *ni;
1936 if ((ifp->if_flags & IFF_RUNNING) == 0)
1940 m = ifq_dequeue(&ifp->if_snd);
1943 ac = M_WME_GETAC(m);
1944 if (sc->txq[ac].queued > IWI_TX_RING_COUNT - 8) {
1945 /* there is no place left in this ring; tail drop */
1947 ifq_prepend(&ifp->if_snd, m);
1948 ifq_set_oactive(&ifp->if_snd);
1952 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1953 if (iwi_tx_start(ifp, m, ni, ac) != 0) {
1954 ieee80211_free_node(ni);
1955 IFNET_STAT_INC(ifp, oerrors, 1);
1959 sc->sc_tx_timer = 5;
1964 iwi_start(struct ifnet *ifp, struct ifaltq_subque *ifsq)
1966 ASSERT_ALTQ_SQ_DEFAULT(ifp, ifsq);
1967 iwi_start_locked(ifp);
1971 iwi_watchdog(void *arg)
1973 struct iwi_softc *sc = arg;
1974 struct ifnet *ifp = sc->sc_ifp;
1975 struct ieee80211com *ic = ifp->if_l2com;
1977 wlan_serialize_enter();
1978 if (sc->sc_tx_timer > 0) {
1979 if (--sc->sc_tx_timer == 0) {
1980 if_printf(ifp, "device timeout\n");
1981 IFNET_STAT_INC(ifp, oerrors, 1);
1982 wlan_serialize_exit();
1983 ieee80211_runtask(ic, &sc->sc_restarttask);
1984 wlan_serialize_enter();
1987 if (sc->sc_state_timer > 0) {
1988 if (--sc->sc_state_timer == 0) {
1989 if_printf(ifp, "firmware stuck in state %d, resetting\n",
1991 if (sc->fw_state == IWI_FW_SCANNING) {
1992 struct ieee80211com *ic = ifp->if_l2com;
1993 ieee80211_cancel_scan(TAILQ_FIRST(&ic->ic_vaps));
1995 wlan_serialize_exit();
1996 ieee80211_runtask(ic, &sc->sc_restarttask);
1997 wlan_serialize_enter();
1998 sc->sc_state_timer = 3;
2001 if (sc->sc_busy_timer > 0) {
2002 if (--sc->sc_busy_timer == 0) {
2003 if_printf(ifp, "firmware command timeout, resetting\n");
2004 wlan_serialize_exit();
2005 ieee80211_runtask(ic, &sc->sc_restarttask);
2006 wlan_serialize_enter();
2009 callout_reset(&sc->sc_wdtimer_callout, hz, iwi_watchdog, sc);
2010 wlan_serialize_exit();
2014 iwi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *ucred)
2016 struct iwi_softc *sc = ifp->if_softc;
2017 struct ieee80211com *ic = ifp->if_l2com;
2018 struct ifreq *ifr = (struct ifreq *) data;
2019 int error = 0, startall = 0;
2023 if (ifp->if_flags & IFF_UP) {
2024 if (!(ifp->if_flags & IFF_RUNNING)) {
2025 iwi_init_locked(sc);
2029 if (ifp->if_flags & IFF_RUNNING)
2030 iwi_stop_locked(sc);
2033 ieee80211_start_all(ic);
2036 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
2039 error = ether_ioctl(ifp, cmd, data);
2049 iwi_stop_master(struct iwi_softc *sc)
2054 /* disable interrupts */
2055 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0);
2057 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER);
2058 for (ntries = 0; ntries < 5; ntries++) {
2059 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED)
2064 device_printf(sc->sc_dev, "timeout waiting for master\n");
2066 tmp = CSR_READ_4(sc, IWI_CSR_RST);
2067 CSR_WRITE_4(sc, IWI_CSR_RST, tmp | IWI_RST_PRINCETON_RESET);
2069 sc->flags &= ~IWI_FLAG_FW_INITED;
2073 iwi_reset(struct iwi_softc *sc)
2078 iwi_stop_master(sc);
2080 tmp = CSR_READ_4(sc, IWI_CSR_CTL);
2081 CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_INIT);
2083 CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST);
2085 /* wait for clock stabilization */
2086 for (ntries = 0; ntries < 1000; ntries++) {
2087 if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY)
2091 if (ntries == 1000) {
2092 device_printf(sc->sc_dev,
2093 "timeout waiting for clock stabilization\n");
2097 tmp = CSR_READ_4(sc, IWI_CSR_RST);
2098 CSR_WRITE_4(sc, IWI_CSR_RST, tmp | IWI_RST_SOFT_RESET);
2102 tmp = CSR_READ_4(sc, IWI_CSR_CTL);
2103 CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_INIT);
2105 /* clear NIC memory */
2106 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0);
2107 for (i = 0; i < 0xc000; i++)
2108 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0);
2113 static const struct iwi_firmware_ohdr *
2114 iwi_setup_ofw(struct iwi_softc *sc, struct iwi_fw *fw)
2116 const struct firmware *fp = fw->fp;
2117 const struct iwi_firmware_ohdr *hdr;
2119 if (fp->datasize < sizeof (struct iwi_firmware_ohdr)) {
2120 device_printf(sc->sc_dev, "image '%s' too small\n", fp->name);
2123 hdr = (const struct iwi_firmware_ohdr *)fp->data;
2124 if ((IWI_FW_GET_MAJOR(le32toh(hdr->version)) != IWI_FW_REQ_MAJOR) ||
2125 (IWI_FW_GET_MINOR(le32toh(hdr->version)) != IWI_FW_REQ_MINOR)) {
2126 device_printf(sc->sc_dev, "version for '%s' %d.%d != %d.%d\n",
2127 fp->name, IWI_FW_GET_MAJOR(le32toh(hdr->version)),
2128 IWI_FW_GET_MINOR(le32toh(hdr->version)), IWI_FW_REQ_MAJOR,
2132 fw->data = ((const char *) fp->data) + sizeof(struct iwi_firmware_ohdr);
2133 fw->size = fp->datasize - sizeof(struct iwi_firmware_ohdr);
2134 fw->name = fp->name;
2138 static const struct iwi_firmware_ohdr *
2139 iwi_setup_oucode(struct iwi_softc *sc, struct iwi_fw *fw)
2141 const struct iwi_firmware_ohdr *hdr;
2143 hdr = iwi_setup_ofw(sc, fw);
2144 if (hdr != NULL && le32toh(hdr->mode) != IWI_FW_MODE_UCODE) {
2145 device_printf(sc->sc_dev, "%s is not a ucode image\n",
2153 iwi_getfw(struct iwi_fw *fw, const char *fwname,
2154 struct iwi_fw *uc, const char *ucname)
2156 wlan_assert_serialized();
2157 wlan_serialize_exit();
2159 fw->fp = firmware_get(fwname);
2161 /* NB: pre-3.0 ucode is packaged separately */
2162 if (uc->fp == NULL && fw->fp != NULL && fw->fp->version < 300)
2163 uc->fp = firmware_get(ucname);
2164 wlan_serialize_enter();
2168 * Get the required firmware images if not already loaded.
2169 * Note that we hold firmware images so long as the device
2170 * is marked up in case we need to reload them on device init.
2171 * This is necessary because we re-init the device sometimes
2172 * from a context where we cannot read from the filesystem
2173 * (e.g. from the taskqueue thread when rfkill is re-enabled).
2174 * XXX return 0 on success, 1 on error.
2176 * NB: the order of get'ing and put'ing images here is
2177 * intentional to support handling firmware images bundled
2178 * by operating mode and/or all together in one file with
2179 * the boot firmware as "master".
2182 iwi_get_firmware(struct iwi_softc *sc, enum ieee80211_opmode opmode)
2184 const struct iwi_firmware_hdr *hdr;
2185 const struct firmware *fp;
2187 wlan_serialize_enter();
2189 /* invalidate cached firmware on mode change */
2190 if (sc->fw_mode != opmode)
2191 iwi_put_firmware(sc);
2194 case IEEE80211_M_STA:
2195 iwi_getfw(&sc->fw_fw, "iwi_bss", &sc->fw_uc, "iwi_ucode_bss");
2197 case IEEE80211_M_IBSS:
2198 iwi_getfw(&sc->fw_fw, "iwi_ibss", &sc->fw_uc, "iwi_ucode_ibss");
2200 case IEEE80211_M_MONITOR:
2201 iwi_getfw(&sc->fw_fw, "iwi_monitor",
2202 &sc->fw_uc, "iwi_ucode_monitor");
2205 device_printf(sc->sc_dev, "unknown opmode %d\n", opmode);
2206 wlan_serialize_exit();
2211 device_printf(sc->sc_dev, "could not load firmware\n");
2214 if (fp->version < 300) {
2216 * Firmware prior to 3.0 was packaged as separate
2217 * boot, firmware, and ucode images. Verify the
2218 * ucode image was read in, retrieve the boot image
2219 * if needed, and check version stamps for consistency.
2220 * The version stamps in the data are also checked
2221 * above; this is a bit paranoid but is a cheap
2222 * safeguard against mis-packaging.
2224 if (sc->fw_uc.fp == NULL) {
2225 device_printf(sc->sc_dev, "could not load ucode\n");
2228 if (sc->fw_boot.fp == NULL) {
2229 sc->fw_boot.fp = firmware_get("iwi_boot");
2230 if (sc->fw_boot.fp == NULL) {
2231 device_printf(sc->sc_dev,
2232 "could not load boot firmware\n");
2236 if (sc->fw_boot.fp->version != sc->fw_fw.fp->version ||
2237 sc->fw_boot.fp->version != sc->fw_uc.fp->version) {
2238 device_printf(sc->sc_dev,
2239 "firmware version mismatch: "
2240 "'%s' is %d, '%s' is %d, '%s' is %d\n",
2241 sc->fw_boot.fp->name, sc->fw_boot.fp->version,
2242 sc->fw_uc.fp->name, sc->fw_uc.fp->version,
2243 sc->fw_fw.fp->name, sc->fw_fw.fp->version
2248 * Check and setup each image.
2250 if (iwi_setup_oucode(sc, &sc->fw_uc) == NULL ||
2251 iwi_setup_ofw(sc, &sc->fw_boot) == NULL ||
2252 iwi_setup_ofw(sc, &sc->fw_fw) == NULL)
2256 * Check and setup combined image.
2258 if (fp->datasize < sizeof(struct iwi_firmware_hdr)) {
2259 device_printf(sc->sc_dev, "image '%s' too small\n",
2263 hdr = (const struct iwi_firmware_hdr *)fp->data;
2264 if (fp->datasize < sizeof(*hdr) + le32toh(hdr->bsize) + le32toh(hdr->usize)
2265 + le32toh(hdr->fsize)) {
2266 device_printf(sc->sc_dev, "image '%s' too small (2)\n",
2270 sc->fw_boot.data = ((const char *) fp->data) + sizeof(*hdr);
2271 sc->fw_boot.size = le32toh(hdr->bsize);
2272 sc->fw_boot.name = fp->name;
2273 sc->fw_uc.data = sc->fw_boot.data + sc->fw_boot.size;
2274 sc->fw_uc.size = le32toh(hdr->usize);
2275 sc->fw_uc.name = fp->name;
2276 sc->fw_fw.data = sc->fw_uc.data + sc->fw_uc.size;
2277 sc->fw_fw.size = le32toh(hdr->fsize);
2278 sc->fw_fw.name = fp->name;
2281 device_printf(sc->sc_dev, "boot %d ucode %d fw %d bytes\n",
2282 sc->fw_boot.size, sc->fw_uc.size, sc->fw_fw.size);
2285 sc->fw_mode = opmode;
2286 wlan_serialize_exit();
2289 iwi_put_firmware(sc);
2290 wlan_serialize_exit();
2295 iwi_put_fw(struct iwi_fw *fw)
2297 wlan_assert_serialized();
2298 wlan_serialize_exit();
2299 if (fw->fp != NULL) {
2300 firmware_put(fw->fp, FIRMWARE_UNLOAD);
2303 wlan_serialize_enter();
2310 * Release any cached firmware images.
2313 iwi_put_firmware(struct iwi_softc *sc)
2315 iwi_put_fw(&sc->fw_uc);
2316 iwi_put_fw(&sc->fw_fw);
2317 iwi_put_fw(&sc->fw_boot);
2321 iwi_load_ucode(struct iwi_softc *sc, const struct iwi_fw *fw)
2325 const char *uc = fw->data;
2326 size_t size = fw->size;
2327 int i, ntries, error;
2330 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) |
2331 IWI_RST_STOP_MASTER);
2332 for (ntries = 0; ntries < 5; ntries++) {
2333 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED)
2338 device_printf(sc->sc_dev, "timeout waiting for master\n");
2343 MEM_WRITE_4(sc, 0x3000e0, 0x80000000);
2346 tmp = CSR_READ_4(sc, IWI_CSR_RST);
2347 tmp &= ~IWI_RST_PRINCETON_RESET;
2348 CSR_WRITE_4(sc, IWI_CSR_RST, tmp);
2351 MEM_WRITE_4(sc, 0x3000e0, 0);
2353 MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, 1);
2355 MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, 0);
2357 MEM_WRITE_1(sc, 0x200000, 0x00);
2358 MEM_WRITE_1(sc, 0x200000, 0x40);
2361 /* write microcode into adapter memory */
2362 for (w = (const uint16_t *)uc; size > 0; w++, size -= 2)
2363 MEM_WRITE_2(sc, 0x200010, htole16(*w));
2365 MEM_WRITE_1(sc, 0x200000, 0x00);
2366 MEM_WRITE_1(sc, 0x200000, 0x80);
2368 /* wait until we get an answer */
2369 for (ntries = 0; ntries < 100; ntries++) {
2370 if (MEM_READ_1(sc, 0x200000) & 1)
2374 if (ntries == 100) {
2375 device_printf(sc->sc_dev,
2376 "timeout waiting for ucode to initialize\n");
2381 /* read the answer or the firmware will not initialize properly */
2382 for (i = 0; i < 7; i++)
2383 MEM_READ_4(sc, 0x200004);
2385 MEM_WRITE_1(sc, 0x200000, 0x00);
2391 /* macro to handle unaligned little endian data in firmware image */
2392 #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24)
2395 iwi_load_firmware(struct iwi_softc *sc, const struct iwi_fw *fw)
2398 uint32_t sentinel, ctl, src, dst, sum, len, mlen, tmp;
2401 /* copy firmware image to DMA memory */
2402 memcpy(sc->fw_virtaddr, fw->data, fw->size);
2404 /* make sure the adapter will get up-to-date values */
2405 bus_dmamap_sync(sc->fw_dmat, sc->fw_map, BUS_DMASYNC_PREWRITE);
2407 /* tell the adapter where the command blocks are stored */
2408 MEM_WRITE_4(sc, 0x3000a0, 0x27000);
2411 * Store command blocks into adapter's internal memory using register
2412 * indirections. The adapter will read the firmware image through DMA
2413 * using information stored in command blocks.
2415 src = sc->fw_physaddr;
2416 p = sc->fw_virtaddr;
2418 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000);
2421 dst = GETLE32(p); p += 4; src += 4;
2422 len = GETLE32(p); p += 4; src += 4;
2426 mlen = min(len, IWI_CB_MAXDATALEN);
2428 ctl = IWI_CB_DEFAULT_CTL | mlen;
2429 sum = ctl ^ src ^ dst;
2431 /* write a command block */
2432 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl);
2433 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, src);
2434 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, dst);
2435 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum);
2443 /* write a fictive final command block (sentinel) */
2444 sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR);
2445 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0);
2447 tmp = CSR_READ_4(sc, IWI_CSR_RST);
2448 tmp &= ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER);
2449 CSR_WRITE_4(sc, IWI_CSR_RST, tmp);
2451 /* tell the adapter to start processing command blocks */
2452 MEM_WRITE_4(sc, 0x3000a4, 0x540100);
2454 /* wait until the adapter reaches the sentinel */
2455 for (ntries = 0; ntries < 400; ntries++) {
2456 if (MEM_READ_4(sc, 0x3000d0) >= sentinel)
2460 /* sync dma, just in case */
2461 bus_dmamap_sync(sc->fw_dmat, sc->fw_map, BUS_DMASYNC_POSTWRITE);
2462 if (ntries == 400) {
2463 device_printf(sc->sc_dev,
2464 "timeout processing command blocks for %s firmware\n",
2469 /* we're done with command blocks processing */
2470 MEM_WRITE_4(sc, 0x3000a4, 0x540c00);
2472 /* allow interrupts so we know when the firmware is ready */
2473 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK);
2475 /* tell the adapter to initialize the firmware */
2476 CSR_WRITE_4(sc, IWI_CSR_RST, 0);
2478 tmp = CSR_READ_4(sc, IWI_CSR_CTL);
2479 CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_ALLOW_STANDBY);
2481 /* wait at most one second for firmware initialization to complete */
2482 error = zsleep(sc, &wlan_global_serializer, 0, "iwiinit", hz);
2484 device_printf(sc->sc_dev, "timeout waiting for firmware "
2485 "initialization to complete\n");
2492 iwi_setpowermode(struct iwi_softc *sc, struct ieee80211vap *vap)
2496 if (vap->iv_flags & IEEE80211_F_PMGTON) {
2497 /* XXX set more fine-grained operation */
2498 data = htole32(IWI_POWER_MODE_MAX);
2500 data = htole32(IWI_POWER_MODE_CAM);
2502 DPRINTF(("Setting power mode to %u\n", le32toh(data)));
2503 return iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data);
2507 iwi_setwepkeys(struct iwi_softc *sc, struct ieee80211vap *vap)
2509 struct iwi_wep_key wepkey;
2510 struct ieee80211_key *wk;
2513 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2514 wk = &vap->iv_nw_keys[i];
2516 wepkey.cmd = IWI_WEP_KEY_CMD_SETKEY;
2518 wepkey.len = wk->wk_keylen;
2519 memset(wepkey.key, 0, sizeof wepkey.key);
2520 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen);
2521 DPRINTF(("Setting wep key index %u len %u\n", wepkey.idx,
2523 error = iwi_cmd(sc, IWI_CMD_SET_WEP_KEY, &wepkey,
2532 iwi_config(struct iwi_softc *sc)
2534 struct ifnet *ifp = sc->sc_ifp;
2535 struct ieee80211com *ic = ifp->if_l2com;
2536 struct iwi_configuration config;
2537 struct iwi_rateset rs;
2538 struct iwi_txpower power;
2541 const uint8_t *eaddr = IF_LLADDR(ifp);
2542 char ethstr[ETHER_ADDRSTRLEN + 1];
2544 DPRINTF(("Setting MAC address to %s\n", kether_ntoa(eaddr, ethstr)));
2545 error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, IF_LLADDR(ifp),
2546 IEEE80211_ADDR_LEN);
2550 memset(&config, 0, sizeof config);
2551 config.bluetooth_coexistence = sc->bluetooth;
2552 config.silence_threshold = 0x1e;
2553 config.antenna = sc->antenna;
2554 config.multicast_enabled = 1;
2555 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0;
2556 config.disable_unicast_decryption = 1;
2557 config.disable_multicast_decryption = 1;
2558 DPRINTF(("Configuring adapter\n"));
2559 error = iwi_cmd(sc, IWI_CMD_SET_CONFIG, &config, sizeof config);
2562 if (ic->ic_opmode == IEEE80211_M_IBSS) {
2563 power.mode = IWI_MODE_11B;
2565 for (i = 0; i < 11; i++) {
2566 power.chan[i].chan = i + 1;
2567 power.chan[i].power = IWI_TXPOWER_MAX;
2569 DPRINTF(("Setting .11b channels tx power\n"));
2570 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power);
2574 power.mode = IWI_MODE_11G;
2575 DPRINTF(("Setting .11g channels tx power\n"));
2576 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power);
2581 memset(&rs, 0, sizeof rs);
2582 rs.mode = IWI_MODE_11G;
2583 rs.type = IWI_RATESET_TYPE_SUPPORTED;
2584 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates;
2585 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates,
2587 DPRINTF(("Setting .11bg supported rates (%u)\n", rs.nrates));
2588 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs);
2592 memset(&rs, 0, sizeof rs);
2593 rs.mode = IWI_MODE_11A;
2594 rs.type = IWI_RATESET_TYPE_SUPPORTED;
2595 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates;
2596 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11A].rs_rates,
2598 DPRINTF(("Setting .11a supported rates (%u)\n", rs.nrates));
2599 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs);
2603 data = htole32(karc4random());
2604 DPRINTF(("Setting initialization vector to %u\n", le32toh(data)));
2605 error = iwi_cmd(sc, IWI_CMD_SET_IV, &data, sizeof data);
2609 /* enable adapter */
2610 DPRINTF(("Enabling adapter\n"));
2611 return iwi_cmd(sc, IWI_CMD_ENABLE, NULL, 0);
2614 static __inline void
2615 set_scan_type(struct iwi_scan_ext *scan, int ix, int scan_type)
2617 uint8_t *st = &scan->scan_type[ix / 2];
2619 *st = (*st & 0xf0) | ((scan_type & 0xf) << 0);
2621 *st = (*st & 0x0f) | ((scan_type & 0xf) << 4);
2625 scan_type(const struct ieee80211_scan_state *ss,
2626 const struct ieee80211_channel *chan)
2628 /* We can only set one essid for a directed scan */
2629 if (ss->ss_nssid != 0)
2630 return IWI_SCAN_TYPE_BDIRECTED;
2631 if ((ss->ss_flags & IEEE80211_SCAN_ACTIVE) &&
2632 (chan->ic_flags & IEEE80211_CHAN_PASSIVE) == 0)
2633 return IWI_SCAN_TYPE_BROADCAST;
2634 return IWI_SCAN_TYPE_PASSIVE;
2638 scan_band(const struct ieee80211_channel *c)
2640 return IEEE80211_IS_CHAN_5GHZ(c) ? IWI_CHAN_5GHZ : IWI_CHAN_2GHZ;
2644 * Start a scan on the current channel or all channels.
2647 iwi_scanchan(struct iwi_softc *sc, unsigned long maxdwell, int allchan)
2649 struct ieee80211com *ic;
2650 struct ieee80211_channel *chan;
2651 struct ieee80211_scan_state *ss;
2652 struct iwi_scan_ext scan;
2655 if (sc->fw_state == IWI_FW_SCANNING) {
2657 * This should not happen as we only trigger scan_next after
2660 DPRINTF(("%s: called too early - still scanning\n", __func__));
2663 IWI_STATE_BEGIN(sc, IWI_FW_SCANNING);
2665 ic = sc->sc_ifp->if_l2com;
2668 memset(&scan, 0, sizeof scan);
2669 scan.full_scan_index = htole32(++sc->sc_scangen);
2670 scan.dwell_time[IWI_SCAN_TYPE_PASSIVE] = htole16(maxdwell);
2671 if (ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN) {
2673 * Use very short dwell times for when we send probe request
2674 * frames. Without this bg scans hang. Ideally this should
2675 * be handled with early-termination as done by net80211 but
2676 * that's not feasible (aborting a scan is problematic).
2678 scan.dwell_time[IWI_SCAN_TYPE_BROADCAST] = htole16(30);
2679 scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED] = htole16(30);
2681 scan.dwell_time[IWI_SCAN_TYPE_BROADCAST] = htole16(maxdwell);
2682 scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED] = htole16(maxdwell);
2685 /* We can only set one essid for a directed scan */
2686 if (ss->ss_nssid != 0) {
2687 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ss->ss_ssid[0].ssid,
2688 ss->ss_ssid[0].len);
2694 int i, next, band, b, bstart;
2696 * Convert scan list to run-length encoded channel list
2697 * the firmware requires (preserving the order setup by
2698 * net80211). The first entry in each run specifies the
2699 * band and the count of items in the run.
2701 next = 0; /* next open slot */
2702 bstart = 0; /* NB: not needed, silence compiler */
2703 band = -1; /* NB: impossible value */
2704 KASSERT(ss->ss_last > 0, ("no channels"));
2705 for (i = 0; i < ss->ss_last; i++) {
2706 chan = ss->ss_chans[i];
2707 b = scan_band(chan);
2710 scan.channels[bstart] =
2711 (next - bstart) | band;
2712 /* NB: this allocates a slot for the run-len */
2713 band = b, bstart = next++;
2715 if (next >= IWI_SCAN_CHANNELS) {
2716 DPRINTF(("truncating scan list\n"));
2719 scan.channels[next] = ieee80211_chan2ieee(ic, chan);
2720 set_scan_type(&scan, next, scan_type(ss, chan));
2723 scan.channels[bstart] = (next - bstart) | band;
2725 /* Scan the current channel only */
2726 chan = ic->ic_curchan;
2727 scan.channels[0] = 1 | scan_band(chan);
2728 scan.channels[1] = ieee80211_chan2ieee(ic, chan);
2729 set_scan_type(&scan, 1, scan_type(ss, chan));
2732 if (iwi_debug > 0) {
2733 static const char *scantype[8] =
2734 { "PSTOP", "PASV", "DIR", "BCAST", "BDIR", "5", "6", "7" };
2736 kprintf("Scan request: index %u dwell %d/%d/%d\n"
2737 , le32toh(scan.full_scan_index)
2738 , le16toh(scan.dwell_time[IWI_SCAN_TYPE_PASSIVE])
2739 , le16toh(scan.dwell_time[IWI_SCAN_TYPE_BROADCAST])
2740 , le16toh(scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED])
2744 int run = scan.channels[i];
2747 kprintf("Scan %d %s channels:", run & 0x3f,
2748 run & IWI_CHAN_2GHZ ? "2.4GHz" : "5GHz");
2749 for (run &= 0x3f, i++; run > 0; run--, i++) {
2750 uint8_t type = scan.scan_type[i/2];
2751 kprintf(" %u/%s", scan.channels[i],
2752 scantype[(i & 1 ? type : type>>4) & 7]);
2755 } while (i < IWI_SCAN_CHANNELS);
2759 return (iwi_cmd(sc, IWI_CMD_SCAN_EXT, &scan, sizeof scan));
2763 iwi_set_sensitivity(struct iwi_softc *sc, int8_t rssi_dbm)
2765 struct iwi_sensitivity sens;
2767 DPRINTF(("Setting sensitivity to %d\n", rssi_dbm));
2769 memset(&sens, 0, sizeof sens);
2770 sens.rssi = htole16(rssi_dbm);
2771 return iwi_cmd(sc, IWI_CMD_SET_SENSITIVITY, &sens, sizeof sens);
2775 iwi_auth_and_assoc(struct iwi_softc *sc, struct ieee80211vap *vap)
2777 struct ieee80211com *ic = vap->iv_ic;
2778 struct ifnet *ifp = vap->iv_ifp;
2779 struct ieee80211_node *ni = vap->iv_bss;
2780 struct iwi_configuration config;
2781 struct iwi_associate *assoc = &sc->assoc;
2782 struct iwi_rateset rs;
2786 char ethstr[2][ETHER_ADDRSTRLEN + 1];
2788 if (sc->flags & IWI_FLAG_ASSOCIATED) {
2789 DPRINTF(("Already associated\n"));
2793 IWI_STATE_BEGIN(sc, IWI_FW_ASSOCIATING);
2797 if (IEEE80211_IS_CHAN_A(ic->ic_curchan))
2798 mode = IWI_MODE_11A;
2799 else if (IEEE80211_IS_CHAN_G(ic->ic_curchan))
2800 mode = IWI_MODE_11G;
2801 if (IEEE80211_IS_CHAN_B(ic->ic_curchan))
2802 mode = IWI_MODE_11B;
2804 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) {
2805 memset(&config, 0, sizeof config);
2806 config.bluetooth_coexistence = sc->bluetooth;
2807 config.antenna = sc->antenna;
2808 config.multicast_enabled = 1;
2809 if (mode == IWI_MODE_11G)
2810 config.use_protection = 1;
2811 config.answer_pbreq =
2812 (vap->iv_opmode == IEEE80211_M_IBSS) ? 1 : 0;
2813 config.disable_unicast_decryption = 1;
2814 config.disable_multicast_decryption = 1;
2815 DPRINTF(("Configuring adapter\n"));
2816 error = iwi_cmd(sc, IWI_CMD_SET_CONFIG, &config, sizeof config);
2822 if (iwi_debug > 0) {
2823 kprintf("Setting ESSID to ");
2824 ieee80211_print_essid(ni->ni_essid, ni->ni_esslen);
2828 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen);
2832 error = iwi_setpowermode(sc, vap);
2836 data = htole32(vap->iv_rtsthreshold);
2837 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data)));
2838 error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data);
2842 data = htole32(vap->iv_fragthreshold);
2843 DPRINTF(("Setting fragmentation threshold to %u\n", le32toh(data)));
2844 error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data);
2848 /* the rate set has already been "negotiated" */
2849 memset(&rs, 0, sizeof rs);
2851 rs.type = IWI_RATESET_TYPE_NEGOTIATED;
2852 rs.nrates = ni->ni_rates.rs_nrates;
2853 if (rs.nrates > IWI_RATESET_SIZE) {
2854 DPRINTF(("Truncating negotiated rate set from %u\n",
2856 rs.nrates = IWI_RATESET_SIZE;
2858 memcpy(rs.rates, ni->ni_rates.rs_rates, rs.nrates);
2859 DPRINTF(("Setting negotiated rates (%u)\n", rs.nrates));
2860 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs);
2864 memset(assoc, 0, sizeof *assoc);
2866 if ((vap->iv_flags & IEEE80211_F_WME) && ni->ni_ies.wme_ie != NULL) {
2867 /* NB: don't treat WME setup as failure */
2868 if (iwi_wme_setparams(sc, ic) == 0 && iwi_wme_setie(sc) == 0)
2869 assoc->policy |= htole16(IWI_POLICY_WME);
2870 /* XXX complain on failure? */
2873 if (vap->iv_appie_wpa != NULL) {
2874 struct ieee80211_appie *ie = vap->iv_appie_wpa;
2876 DPRINTF(("Setting optional IE (len=%u)\n", ie->ie_len));
2877 error = iwi_cmd(sc, IWI_CMD_SET_OPTIE, ie->ie_data, ie->ie_len);
2882 error = iwi_set_sensitivity(sc, ic->ic_node_getrssi(ni));
2887 assoc->chan = ic->ic_curchan->ic_ieee;
2889 * NB: do not arrange for shared key auth w/o privacy
2890 * (i.e. a wep key); it causes a firmware error.
2892 if ((vap->iv_flags & IEEE80211_F_PRIVACY) &&
2893 ni->ni_authmode == IEEE80211_AUTH_SHARED) {
2894 assoc->auth = IWI_AUTH_SHARED;
2896 * It's possible to have privacy marked but no default
2897 * key setup. This typically is due to a user app bug
2898 * but if we blindly grab the key the firmware will
2899 * barf so avoid it for now.
2901 if (vap->iv_def_txkey != IEEE80211_KEYIX_NONE)
2902 assoc->auth |= vap->iv_def_txkey << 4;
2904 error = iwi_setwepkeys(sc, vap);
2908 if (vap->iv_flags & IEEE80211_F_WPA)
2909 assoc->policy |= htole16(IWI_POLICY_WPA);
2910 if (vap->iv_opmode == IEEE80211_M_IBSS && ni->ni_tstamp.tsf == 0)
2911 assoc->type = IWI_HC_IBSS_START;
2913 assoc->type = IWI_HC_ASSOC;
2914 memcpy(assoc->tstamp, ni->ni_tstamp.data, 8);
2916 if (vap->iv_opmode == IEEE80211_M_IBSS)
2917 capinfo = IEEE80211_CAPINFO_IBSS;
2919 capinfo = IEEE80211_CAPINFO_ESS;
2920 if (vap->iv_flags & IEEE80211_F_PRIVACY)
2921 capinfo |= IEEE80211_CAPINFO_PRIVACY;
2922 if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) &&
2923 IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan))
2924 capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE;
2925 if (ni->ni_capinfo & IEEE80211_CAPINFO_SHORT_SLOTTIME)
2926 capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME;
2927 assoc->capinfo = htole16(capinfo);
2929 assoc->lintval = htole16(ic->ic_lintval);
2930 assoc->intval = htole16(ni->ni_intval);
2931 IEEE80211_ADDR_COPY(assoc->bssid, ni->ni_bssid);
2932 if (vap->iv_opmode == IEEE80211_M_IBSS)
2933 IEEE80211_ADDR_COPY(assoc->dst, ifp->if_broadcastaddr);
2935 IEEE80211_ADDR_COPY(assoc->dst, ni->ni_bssid);
2937 DPRINTF(("%s bssid %s dst %s channel %u policy 0x%x "
2938 "auth %u capinfo 0x%x lintval %u bintval %u\n",
2939 assoc->type == IWI_HC_IBSS_START ? "Start" : "Join",
2940 kether_ntoa(assoc->bssid, ethstr[0]), kether_ntoa(assoc->dst, ethstr[1]),
2941 assoc->chan, le16toh(assoc->policy), assoc->auth,
2942 le16toh(assoc->capinfo), le16toh(assoc->lintval),
2943 le16toh(assoc->intval)));
2944 error = iwi_cmd(sc, IWI_CMD_ASSOCIATE, assoc, sizeof *assoc);
2947 IWI_STATE_END(sc, IWI_FW_ASSOCIATING);
2953 iwi_disassoc_task(void *arg, int pending)
2955 struct iwi_softc *sc = arg;
2957 wlan_serialize_enter();
2958 iwi_disassociate(sc, 0);
2959 wlan_serialize_exit();
2963 iwi_disassociate(struct iwi_softc *sc, int quiet)
2965 struct iwi_associate *assoc = &sc->assoc;
2966 char ethstr[ETHER_ADDRSTRLEN + 1];
2968 if ((sc->flags & IWI_FLAG_ASSOCIATED) == 0) {
2969 DPRINTF(("Not associated\n"));
2973 IWI_STATE_BEGIN(sc, IWI_FW_DISASSOCIATING);
2976 assoc->type = IWI_HC_DISASSOC_QUIET;
2978 assoc->type = IWI_HC_DISASSOC;
2980 DPRINTF(("Trying to disassociate from %s channel %u\n",
2981 kether_ntoa(assoc->bssid, ethstr), assoc->chan));
2982 return iwi_cmd(sc, IWI_CMD_ASSOCIATE, assoc, sizeof *assoc);
2986 * release dma resources for the firmware
2989 iwi_release_fw_dma(struct iwi_softc *sc)
2991 if (sc->fw_flags & IWI_FW_HAVE_PHY)
2992 bus_dmamap_unload(sc->fw_dmat, sc->fw_map);
2993 if (sc->fw_flags & IWI_FW_HAVE_MAP)
2994 bus_dmamem_free(sc->fw_dmat, sc->fw_virtaddr, sc->fw_map);
2995 if (sc->fw_flags & IWI_FW_HAVE_DMAT)
2996 bus_dma_tag_destroy(sc->fw_dmat);
2999 sc->fw_dma_size = 0;
3002 sc->fw_physaddr = 0;
3003 sc->fw_virtaddr = NULL;
3007 * allocate the dma descriptor for the firmware.
3008 * Return 0 on success, 1 on error.
3009 * Must be called unlocked, protected by IWI_FLAG_FW_LOADING.
3012 iwi_init_fw_dma(struct iwi_softc *sc, int size)
3014 if (sc->fw_dma_size >= size)
3016 if (bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT,
3017 BUS_SPACE_MAXADDR, NULL, NULL, size, 1, size,
3018 0, &sc->fw_dmat) != 0) {
3019 device_printf(sc->sc_dev,
3020 "could not create firmware DMA tag\n");
3023 sc->fw_flags |= IWI_FW_HAVE_DMAT;
3024 if (bus_dmamem_alloc(sc->fw_dmat, &sc->fw_virtaddr, 0,
3025 &sc->fw_map) != 0) {
3026 device_printf(sc->sc_dev,
3027 "could not allocate firmware DMA memory\n");
3030 sc->fw_flags |= IWI_FW_HAVE_MAP;
3031 if (bus_dmamap_load(sc->fw_dmat, sc->fw_map, sc->fw_virtaddr,
3032 size, iwi_dma_map_addr, &sc->fw_physaddr, 0) != 0) {
3033 device_printf(sc->sc_dev, "could not load firmware DMA map\n");
3036 sc->fw_flags |= IWI_FW_HAVE_PHY;
3037 sc->fw_dma_size = size;
3041 iwi_release_fw_dma(sc);
3046 iwi_init_locked(struct iwi_softc *sc)
3048 struct ifnet *ifp = sc->sc_ifp;
3049 struct iwi_rx_data *data;
3052 if (sc->fw_state == IWI_FW_LOADING) {
3053 device_printf(sc->sc_dev, "%s: already loading\n", __func__);
3054 return; /* XXX: condvar? */
3057 iwi_stop_locked(sc);
3059 IWI_STATE_BEGIN(sc, IWI_FW_LOADING);
3061 if (iwi_reset(sc) != 0) {
3062 device_printf(sc->sc_dev, "could not reset adapter\n");
3065 if (iwi_load_firmware(sc, &sc->fw_boot) != 0) {
3066 device_printf(sc->sc_dev,
3067 "could not load boot firmware %s\n", sc->fw_boot.name);
3070 if (iwi_load_ucode(sc, &sc->fw_uc) != 0) {
3071 device_printf(sc->sc_dev,
3072 "could not load microcode %s\n", sc->fw_uc.name);
3076 iwi_stop_master(sc);
3078 CSR_WRITE_4(sc, IWI_CSR_CMD_BASE, sc->cmdq.physaddr);
3079 CSR_WRITE_4(sc, IWI_CSR_CMD_SIZE, sc->cmdq.count);
3080 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur);
3082 CSR_WRITE_4(sc, IWI_CSR_TX1_BASE, sc->txq[0].physaddr);
3083 CSR_WRITE_4(sc, IWI_CSR_TX1_SIZE, sc->txq[0].count);
3084 CSR_WRITE_4(sc, IWI_CSR_TX1_WIDX, sc->txq[0].cur);
3086 CSR_WRITE_4(sc, IWI_CSR_TX2_BASE, sc->txq[1].physaddr);
3087 CSR_WRITE_4(sc, IWI_CSR_TX2_SIZE, sc->txq[1].count);
3088 CSR_WRITE_4(sc, IWI_CSR_TX2_WIDX, sc->txq[1].cur);
3090 CSR_WRITE_4(sc, IWI_CSR_TX3_BASE, sc->txq[2].physaddr);
3091 CSR_WRITE_4(sc, IWI_CSR_TX3_SIZE, sc->txq[2].count);
3092 CSR_WRITE_4(sc, IWI_CSR_TX3_WIDX, sc->txq[2].cur);
3094 CSR_WRITE_4(sc, IWI_CSR_TX4_BASE, sc->txq[3].physaddr);
3095 CSR_WRITE_4(sc, IWI_CSR_TX4_SIZE, sc->txq[3].count);
3096 CSR_WRITE_4(sc, IWI_CSR_TX4_WIDX, sc->txq[3].cur);
3098 for (i = 0; i < sc->rxq.count; i++) {
3099 data = &sc->rxq.data[i];
3100 CSR_WRITE_4(sc, data->reg, data->physaddr);
3103 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, sc->rxq.count - 1);
3105 if (iwi_load_firmware(sc, &sc->fw_fw) != 0) {
3106 device_printf(sc->sc_dev,
3107 "could not load main firmware %s\n", sc->fw_fw.name);
3110 sc->flags |= IWI_FLAG_FW_INITED;
3112 IWI_STATE_END(sc, IWI_FW_LOADING);
3114 if (iwi_config(sc) != 0) {
3115 device_printf(sc->sc_dev, "unable to enable adapter\n");
3119 callout_reset(&sc->sc_wdtimer_callout, hz, iwi_watchdog, sc);
3120 ifq_clr_oactive(&ifp->if_snd);
3121 ifp->if_flags |= IFF_RUNNING;
3124 IWI_STATE_END(sc, IWI_FW_LOADING);
3126 iwi_stop_locked(sc);
3130 iwi_init(void *priv)
3132 struct iwi_softc *sc = priv;
3133 struct ifnet *ifp = sc->sc_ifp;
3134 struct ieee80211com *ic = ifp->if_l2com;
3136 iwi_init_locked(sc);
3138 if (ifp->if_flags & IFF_RUNNING)
3139 ieee80211_start_all(ic);
3143 iwi_stop_locked(void *priv)
3145 struct iwi_softc *sc = priv;
3146 struct ifnet *ifp = sc->sc_ifp;
3148 ifp->if_flags &= ~IFF_RUNNING;
3149 ifq_clr_oactive(&ifp->if_snd);
3151 if (sc->sc_softled) {
3152 callout_stop(&sc->sc_ledtimer_callout);
3153 sc->sc_blinking = 0;
3155 callout_stop(&sc->sc_wdtimer_callout);
3156 callout_stop(&sc->sc_rftimer_callout);
3158 iwi_stop_master(sc);
3160 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_SOFT_RESET);
3163 iwi_reset_cmd_ring(sc, &sc->cmdq);
3164 iwi_reset_tx_ring(sc, &sc->txq[0]);
3165 iwi_reset_tx_ring(sc, &sc->txq[1]);
3166 iwi_reset_tx_ring(sc, &sc->txq[2]);
3167 iwi_reset_tx_ring(sc, &sc->txq[3]);
3168 iwi_reset_rx_ring(sc, &sc->rxq);
3170 sc->sc_tx_timer = 0;
3171 sc->sc_state_timer = 0;
3172 sc->sc_busy_timer = 0;
3173 sc->flags &= ~(IWI_FLAG_BUSY | IWI_FLAG_ASSOCIATED);
3174 sc->fw_state = IWI_FW_IDLE;
3179 iwi_stop(struct iwi_softc *sc)
3181 iwi_stop_locked(sc);
3185 iwi_restart_task(void *arg, int npending)
3187 struct iwi_softc *sc = arg;
3189 wlan_serialize_enter();
3191 wlan_serialize_exit();
3195 * Return whether or not the radio is enabled in hardware
3196 * (i.e. the rfkill switch is "off").
3199 iwi_getrfkill(struct iwi_softc *sc)
3201 return (CSR_READ_4(sc, IWI_CSR_IO) & IWI_IO_RADIO_ENABLED) == 0;
3205 iwi_radio_on_task(void *arg, int pending)
3207 struct iwi_softc *sc = arg;
3208 struct ieee80211com *ic = sc->sc_ifp->if_l2com;
3210 wlan_serialize_enter();
3211 device_printf(sc->sc_dev, "radio turned on\n");
3214 ieee80211_notify_radio(ic, 1);
3215 wlan_serialize_exit();
3219 iwi_rfkill_poll(void *arg)
3221 struct iwi_softc *sc = arg;
3224 * Check for a change in rfkill state. We get an
3225 * interrupt when a radio is disabled but not when
3226 * it is enabled so we must poll for the latter.
3228 if (!iwi_getrfkill(sc)) {
3229 struct ifnet *ifp = sc->sc_ifp;
3230 struct ieee80211com *ic = ifp->if_l2com;
3232 ieee80211_runtask(ic, &sc->sc_radiontask);
3235 callout_reset(&sc->sc_rftimer_callout, 2*hz, iwi_rfkill_poll, sc);
3239 iwi_radio_off_task(void *arg, int pending)
3241 struct iwi_softc *sc = arg;
3242 struct ieee80211com *ic = sc->sc_ifp->if_l2com;
3244 wlan_serialize_enter();
3245 device_printf(sc->sc_dev, "radio turned off\n");
3247 ieee80211_notify_radio(ic, 0);
3249 iwi_stop_locked(sc);
3250 iwi_rfkill_poll(sc);
3251 wlan_serialize_exit();
3255 iwi_sysctl_stats(SYSCTL_HANDLER_ARGS)
3257 struct iwi_softc *sc = arg1;
3258 uint32_t size, buf[128];
3260 memset(buf, 0, sizeof buf);
3262 if (!(sc->flags & IWI_FLAG_FW_INITED))
3263 return SYSCTL_OUT(req, buf, sizeof buf);
3265 size = min(CSR_READ_4(sc, IWI_CSR_TABLE0_SIZE), 128 - 1);
3266 CSR_READ_REGION_4(sc, IWI_CSR_TABLE0_BASE, &buf[1], size);
3268 return SYSCTL_OUT(req, buf, size);
3272 iwi_sysctl_radio(SYSCTL_HANDLER_ARGS)
3274 struct iwi_softc *sc = arg1;
3275 int val = !iwi_getrfkill(sc);
3277 return SYSCTL_OUT(req, &val, sizeof val);
3284 iwi_sysctlattach(struct iwi_softc *sc)
3286 struct sysctl_ctx_list *ctx;
3287 struct sysctl_oid *tree;
3289 ctx = device_get_sysctl_ctx(sc->sc_dev);
3290 tree = device_get_sysctl_tree(sc->sc_dev);
3292 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "radio",
3293 CTLTYPE_INT | CTLFLAG_RD, sc, 0, iwi_sysctl_radio, "I",
3294 "radio transmitter switch state (0=off, 1=on)");
3296 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "stats",
3297 CTLTYPE_OPAQUE | CTLFLAG_RD, sc, 0, iwi_sysctl_stats, "S",
3301 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "bluetooth",
3302 CTLFLAG_RW, &sc->bluetooth, 0, "bluetooth coexistence");
3304 sc->antenna = IWI_ANTENNA_AUTO;
3305 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "antenna",
3306 CTLFLAG_RW, &sc->antenna, 0, "antenna (0=auto)");
3312 * Different cards have different capabilities. Some have three
3313 * led's while others have only one. The linux ipw driver defines
3314 * led's for link state (associated or not), band (11a, 11g, 11b),
3315 * and for link activity. We use one led and vary the blink rate
3316 * according to the tx/rx traffic a la the ath driver.
3319 static __inline uint32_t
3320 iwi_toggle_event(uint32_t r)
3322 return r &~ (IWI_RST_STANDBY | IWI_RST_GATE_ODMA |
3323 IWI_RST_GATE_IDMA | IWI_RST_GATE_ADMA);
3327 iwi_read_event(struct iwi_softc *sc)
3329 return MEM_READ_4(sc, IWI_MEM_EEPROM_EVENT);
3333 iwi_write_event(struct iwi_softc *sc, uint32_t v)
3335 MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, v);
3339 iwi_led_done(void *arg)
3341 struct iwi_softc *sc = arg;
3343 sc->sc_blinking = 0;
3347 * Turn the activity LED off: flip the pin and then set a timer so no
3348 * update will happen for the specified duration.
3351 iwi_led_off(void *arg)
3353 struct iwi_softc *sc = arg;
3356 v = iwi_read_event(sc);
3357 v &= ~sc->sc_ledpin;
3358 iwi_write_event(sc, iwi_toggle_event(v));
3359 callout_reset(&sc->sc_ledtimer_callout, sc->sc_ledoff, iwi_led_done, sc);
3363 * Blink the LED according to the specified on/off times.
3366 iwi_led_blink(struct iwi_softc *sc, int on, int off)
3370 v = iwi_read_event(sc);
3372 iwi_write_event(sc, iwi_toggle_event(v));
3373 sc->sc_blinking = 1;
3374 sc->sc_ledoff = off;
3375 callout_reset(&sc->sc_ledtimer_callout, on, iwi_led_off, sc);
3379 iwi_led_event(struct iwi_softc *sc, int event)
3381 /* NB: on/off times from the Atheros NDIS driver, w/ permission */
3382 static const struct {
3383 u_int rate; /* tx/rx iwi rate */
3384 u_int16_t timeOn; /* LED on time (ms) */
3385 u_int16_t timeOff; /* LED off time (ms) */
3387 { IWI_RATE_OFDM54, 40, 10 },
3388 { IWI_RATE_OFDM48, 44, 11 },
3389 { IWI_RATE_OFDM36, 50, 13 },
3390 { IWI_RATE_OFDM24, 57, 14 },
3391 { IWI_RATE_OFDM18, 67, 16 },
3392 { IWI_RATE_OFDM12, 80, 20 },
3393 { IWI_RATE_DS11, 100, 25 },
3394 { IWI_RATE_OFDM9, 133, 34 },
3395 { IWI_RATE_OFDM6, 160, 40 },
3396 { IWI_RATE_DS5, 200, 50 },
3397 { 6, 240, 58 }, /* XXX 3Mb/s if it existed */
3398 { IWI_RATE_DS2, 267, 66 },
3399 { IWI_RATE_DS1, 400, 100 },
3400 { 0, 500, 130 }, /* unknown rate/polling */
3403 int j = 0; /* XXX silence compiler */
3405 sc->sc_ledevent = ticks; /* time of last event */
3406 if (sc->sc_blinking) /* don't interrupt active blink */
3410 j = NELEM(blinkrates)-1;
3413 /* read current transmission rate from adapter */
3414 txrate = CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE);
3415 if (blinkrates[sc->sc_txrix].rate != txrate) {
3416 for (j = 0; j < NELEM(blinkrates)-1; j++)
3417 if (blinkrates[j].rate == txrate)
3424 if (blinkrates[sc->sc_rxrix].rate != sc->sc_rxrate) {
3425 for (j = 0; j < NELEM(blinkrates)-1; j++)
3426 if (blinkrates[j].rate == sc->sc_rxrate)
3433 /* XXX beware of overflow */
3434 iwi_led_blink(sc, (blinkrates[j].timeOn * hz) / 1000,
3435 (blinkrates[j].timeOff * hz) / 1000);
3439 iwi_sysctl_softled(SYSCTL_HANDLER_ARGS)
3441 struct iwi_softc *sc = arg1;
3442 int softled = sc->sc_softled;
3445 error = sysctl_handle_int(oidp, &softled, 0, req);
3446 if (error || !req->newptr)
3448 softled = (softled != 0);
3449 if (softled != sc->sc_softled) {
3451 uint32_t v = iwi_read_event(sc);
3452 v &= ~sc->sc_ledpin;
3453 iwi_write_event(sc, iwi_toggle_event(v));
3455 sc->sc_softled = softled;
3461 iwi_ledattach(struct iwi_softc *sc)
3463 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev);
3464 struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev);
3466 sc->sc_blinking = 0;
3467 sc->sc_ledstate = 1;
3468 sc->sc_ledidle = (2700*hz)/1000; /* 2.7sec */
3469 callout_init(&sc->sc_ledtimer_callout);
3471 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
3472 "softled", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
3473 iwi_sysctl_softled, "I", "enable/disable software LED support");
3474 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
3475 "ledpin", CTLFLAG_RW, &sc->sc_ledpin, 0,
3476 "pin setting to turn activity LED on");
3477 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
3478 "ledidle", CTLFLAG_RW, &sc->sc_ledidle, 0,
3479 "idle time for inactivity LED (ticks)");
3480 /* XXX for debugging */
3481 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
3482 "nictype", CTLFLAG_RD, &sc->sc_nictype, 0,
3483 "NIC type from EEPROM");
3485 sc->sc_ledpin = IWI_RST_LED_ACTIVITY;
3488 sc->sc_nictype = (iwi_read_prom_word(sc, IWI_EEPROM_NIC) >> 8) & 0xff;
3489 if (sc->sc_nictype == 1) {
3491 * NB: led's are reversed.
3493 sc->sc_ledpin = IWI_RST_LED_ASSOCIATED;
3498 iwi_scan_start(struct ieee80211com *ic)
3504 iwi_set_channel(struct ieee80211com *ic)
3506 struct ifnet *ifp = ic->ic_ifp;
3507 struct iwi_softc *sc = ifp->if_softc;
3508 if (sc->fw_state == IWI_FW_IDLE)
3509 iwi_setcurchan(sc, ic->ic_curchan->ic_ieee);
3513 iwi_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)
3515 struct ieee80211vap *vap = ss->ss_vap;
3516 struct ifnet *ifp = vap->iv_ic->ic_ifp;
3517 struct iwi_softc *sc = ifp->if_softc;
3519 if (iwi_scanchan(sc, maxdwell, 0))
3520 ieee80211_cancel_scan(vap);
3524 iwi_scan_mindwell(struct ieee80211_scan_state *ss)
3526 /* NB: don't try to abort scan; wait for firmware to finish */
3530 iwi_scan_end(struct ieee80211com *ic)
3532 struct ifnet *ifp = ic->ic_ifp;
3533 struct iwi_softc *sc = ifp->if_softc;
3535 sc->flags &= ~IWI_FLAG_CHANNEL_SCAN;
3536 /* NB: make sure we're still scanning */
3537 if (sc->fw_state == IWI_FW_SCANNING)
3538 iwi_cmd(sc, IWI_CMD_ABORT_SCAN, NULL, 0);