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, int opmode, int flags,
133 const uint8_t bssid[IEEE80211_ADDR_LEN],
134 const uint8_t mac[IEEE80211_ADDR_LEN]);
135 static void iwi_vap_delete(struct ieee80211vap *);
136 static void iwi_dma_map_addr(void *, bus_dma_segment_t *, int, int);
137 static int iwi_alloc_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *,
139 static void iwi_reset_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *);
140 static void iwi_free_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *);
141 static int iwi_alloc_tx_ring(struct iwi_softc *, struct iwi_tx_ring *,
142 int, bus_addr_t, bus_addr_t);
143 static void iwi_reset_tx_ring(struct iwi_softc *, struct iwi_tx_ring *);
144 static void iwi_free_tx_ring(struct iwi_softc *, struct iwi_tx_ring *);
145 static int iwi_alloc_rx_ring(struct iwi_softc *, struct iwi_rx_ring *,
147 static void iwi_reset_rx_ring(struct iwi_softc *, struct iwi_rx_ring *);
148 static void iwi_free_rx_ring(struct iwi_softc *, struct iwi_rx_ring *);
149 static struct ieee80211_node *iwi_node_alloc(struct ieee80211vap *,
150 const uint8_t [IEEE80211_ADDR_LEN]);
151 static void iwi_node_free(struct ieee80211_node *);
152 static void iwi_media_status(struct ifnet *, struct ifmediareq *);
153 static int iwi_newstate(struct ieee80211vap *, enum ieee80211_state, int);
154 static void iwi_wme_init(struct iwi_softc *);
155 static int iwi_wme_setparams(struct iwi_softc *, struct ieee80211com *);
156 static void iwi_update_wme_task(void *, int);
157 static int iwi_wme_update(struct ieee80211com *);
158 static uint16_t iwi_read_prom_word(struct iwi_softc *, uint8_t);
159 static void iwi_frame_intr(struct iwi_softc *, struct iwi_rx_data *, int,
161 static void iwi_notification_intr(struct iwi_softc *, struct iwi_notif *);
162 static void iwi_rx_intr(struct iwi_softc *);
163 static void iwi_tx_intr(struct iwi_softc *, struct iwi_tx_ring *);
164 static void iwi_intr(void *);
165 static int iwi_cmd(struct iwi_softc *, uint8_t, void *, uint8_t);
166 static void iwi_write_ibssnode(struct iwi_softc *, const u_int8_t [], int);
167 static int iwi_tx_start(struct ifnet *, struct mbuf *,
168 struct ieee80211_node *, int);
169 static int iwi_raw_xmit(struct ieee80211_node *, struct mbuf *,
170 const struct ieee80211_bpf_params *);
171 static void iwi_start_locked(struct ifnet *);
172 static void iwi_start(struct ifnet *, struct ifaltq_subque *);
173 static void iwi_watchdog(void *);
174 static int iwi_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *ucred);
175 static void iwi_stop_master(struct iwi_softc *);
176 static int iwi_reset(struct iwi_softc *);
177 static int iwi_load_ucode(struct iwi_softc *, const struct iwi_fw *);
178 static int iwi_load_firmware(struct iwi_softc *, const struct iwi_fw *);
179 static void iwi_release_fw_dma(struct iwi_softc *sc);
180 static int iwi_config(struct iwi_softc *);
181 static int iwi_get_firmware(struct iwi_softc *, enum ieee80211_opmode);
182 static void iwi_put_firmware(struct iwi_softc *);
183 static int iwi_scanchan(struct iwi_softc *, unsigned long, int);
184 static void iwi_scan_start(struct ieee80211com *);
185 static void iwi_scan_end(struct ieee80211com *);
186 static void iwi_set_channel(struct ieee80211com *);
187 static void iwi_scan_curchan(struct ieee80211_scan_state *, unsigned long maxdwell);
188 static void iwi_scan_mindwell(struct ieee80211_scan_state *);
189 static int iwi_auth_and_assoc(struct iwi_softc *, struct ieee80211vap *);
190 static void iwi_disassoc_task(void *, int);
191 static int iwi_disassociate(struct iwi_softc *, int quiet);
192 static void iwi_init_locked(struct iwi_softc *);
193 static void iwi_init(void *);
194 static int iwi_init_fw_dma(struct iwi_softc *, int);
195 static void iwi_stop_locked(void *);
196 static void iwi_stop(struct iwi_softc *);
197 static void iwi_restart_task(void *, int);
198 static int iwi_getrfkill(struct iwi_softc *);
199 static void iwi_radio_on_task(void *, int);
200 static void iwi_radio_off_task(void *, int);
201 static void iwi_sysctlattach(struct iwi_softc *);
202 static void iwi_led_event(struct iwi_softc *, int);
203 static void iwi_ledattach(struct iwi_softc *);
205 static int iwi_probe(device_t);
206 static int iwi_attach(device_t);
207 static int iwi_detach(device_t);
208 static int iwi_shutdown(device_t);
209 static int iwi_suspend(device_t);
210 static int iwi_resume(device_t);
212 static device_method_t iwi_methods[] = {
213 /* Device interface */
214 DEVMETHOD(device_probe, iwi_probe),
215 DEVMETHOD(device_attach, iwi_attach),
216 DEVMETHOD(device_detach, iwi_detach),
217 DEVMETHOD(device_shutdown, iwi_shutdown),
218 DEVMETHOD(device_suspend, iwi_suspend),
219 DEVMETHOD(device_resume, iwi_resume),
224 static driver_t iwi_driver = {
227 sizeof (struct iwi_softc)
230 static devclass_t iwi_devclass;
232 DRIVER_MODULE(iwi, pci, iwi_driver, iwi_devclass, NULL, NULL);
234 static __inline uint8_t
235 MEM_READ_1(struct iwi_softc *sc, uint32_t addr)
237 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr);
238 return CSR_READ_1(sc, IWI_CSR_INDIRECT_DATA);
241 static __inline uint32_t
242 MEM_READ_4(struct iwi_softc *sc, uint32_t addr)
244 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr);
245 return CSR_READ_4(sc, IWI_CSR_INDIRECT_DATA);
249 iwi_probe(device_t dev)
251 const struct iwi_ident *ident;
253 wlan_serialize_enter();
254 for (ident = iwi_ident_table; ident->name != NULL; ident++) {
255 if (pci_get_vendor(dev) == ident->vendor &&
256 pci_get_device(dev) == ident->device) {
257 device_set_desc(dev, ident->name);
258 wlan_serialize_exit();
262 wlan_serialize_exit();
266 /* Base Address Register */
267 #define IWI_PCI_BAR0 0x10
270 iwi_attach(device_t dev)
272 struct iwi_softc *sc = device_get_softc(dev);
274 struct ieee80211com *ic;
278 uint8_t macaddr[IEEE80211_ADDR_LEN];
280 wlan_serialize_enter();
284 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
286 device_printf(dev, "can not if_alloc()\n");
287 wlan_serialize_exit();
292 devfs_clone_bitmap_init(&sc->sc_unr);
294 TASK_INIT(&sc->sc_radiontask, 0, iwi_radio_on_task, sc);
295 TASK_INIT(&sc->sc_radiofftask, 0, iwi_radio_off_task, sc);
296 TASK_INIT(&sc->sc_restarttask, 0, iwi_restart_task, sc);
297 TASK_INIT(&sc->sc_disassoctask, 0, iwi_disassoc_task, sc);
298 TASK_INIT(&sc->sc_wmetask, 0, iwi_update_wme_task, sc);
300 callout_init(&sc->sc_wdtimer_callout);
301 callout_init(&sc->sc_rftimer_callout);
303 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
304 device_printf(dev, "chip is in D%d power mode "
305 "-- setting to D0\n", pci_get_powerstate(dev));
306 pci_set_powerstate(dev, PCI_POWERSTATE_D0);
309 pci_write_config(dev, 0x41, 0, 1);
311 /* enable bus-mastering */
312 pci_enable_busmaster(dev);
314 sc->mem_rid = IWI_PCI_BAR0;
315 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid,
317 if (sc->mem == NULL) {
318 device_printf(dev, "could not allocate memory resource\n");
322 sc->sc_st = rman_get_bustag(sc->mem);
323 sc->sc_sh = rman_get_bushandle(sc->mem);
326 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
327 RF_ACTIVE | RF_SHAREABLE);
328 if (sc->irq == NULL) {
329 device_printf(dev, "could not allocate interrupt resource\n");
333 if (iwi_reset(sc) != 0) {
334 device_printf(dev, "could not reset adapter\n");
341 if (iwi_alloc_cmd_ring(sc, &sc->cmdq, IWI_CMD_RING_COUNT) != 0) {
342 device_printf(dev, "could not allocate Cmd ring\n");
346 for (i = 0; i < 4; i++) {
347 error = iwi_alloc_tx_ring(sc, &sc->txq[i], IWI_TX_RING_COUNT,
348 IWI_CSR_TX1_RIDX + i * 4,
349 IWI_CSR_TX1_WIDX + i * 4);
351 device_printf(dev, "could not allocate Tx ring %d\n",
357 if (iwi_alloc_rx_ring(sc, &sc->rxq, IWI_RX_RING_COUNT) != 0) {
358 device_printf(dev, "could not allocate Rx ring\n");
365 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
366 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
367 ifp->if_init = iwi_init;
368 ifp->if_ioctl = iwi_ioctl;
369 ifp->if_start = iwi_start;
370 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
371 ifq_set_ready(&ifp->if_snd);
374 ic->ic_opmode = IEEE80211_M_STA;
375 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
377 /* set device capabilities */
379 IEEE80211_C_STA /* station mode supported */
380 | IEEE80211_C_IBSS /* IBSS mode supported */
381 | IEEE80211_C_MONITOR /* monitor mode supported */
382 | IEEE80211_C_PMGT /* power save supported */
383 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
384 | IEEE80211_C_WPA /* 802.11i */
385 | IEEE80211_C_WME /* 802.11e */
387 | IEEE80211_C_BGSCAN /* capable of bg scanning */
391 /* read MAC address from EEPROM */
392 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 0);
393 macaddr[0] = val & 0xff;
394 macaddr[1] = val >> 8;
395 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 1);
396 macaddr[2] = val & 0xff;
397 macaddr[3] = val >> 8;
398 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 2);
399 macaddr[4] = val & 0xff;
400 macaddr[5] = val >> 8;
403 setbit(&bands, IEEE80211_MODE_11B);
404 setbit(&bands, IEEE80211_MODE_11G);
405 if (pci_get_device(dev) >= 0x4223)
406 setbit(&bands, IEEE80211_MODE_11A);
407 ieee80211_init_channels(ic, NULL, &bands);
409 ieee80211_ifattach(ic, macaddr);
410 /* override default methods */
411 ic->ic_node_alloc = iwi_node_alloc;
412 sc->sc_node_free = ic->ic_node_free;
413 ic->ic_node_free = iwi_node_free;
414 ic->ic_raw_xmit = iwi_raw_xmit;
415 ic->ic_scan_start = iwi_scan_start;
416 ic->ic_scan_end = iwi_scan_end;
417 ic->ic_set_channel = iwi_set_channel;
418 ic->ic_scan_curchan = iwi_scan_curchan;
419 ic->ic_scan_mindwell = iwi_scan_mindwell;
420 ic->ic_wme.wme_update = iwi_wme_update;
422 ic->ic_vap_create = iwi_vap_create;
423 ic->ic_vap_delete = iwi_vap_delete;
425 ieee80211_radiotap_attach(ic,
426 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
427 IWI_TX_RADIOTAP_PRESENT,
428 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
429 IWI_RX_RADIOTAP_PRESENT);
431 iwi_sysctlattach(sc);
435 * Hook our interrupt after all initialization is complete.
437 error = bus_setup_intr(dev, sc->irq, INTR_MPSAFE,
438 iwi_intr, sc, &sc->sc_ih, &wlan_global_serializer);
440 device_printf(dev, "could not set up interrupt\n");
445 ieee80211_announce(ic);
447 wlan_serialize_exit();
451 wlan_serialize_exit();
457 iwi_detach(device_t dev)
459 struct iwi_softc *sc = device_get_softc(dev);
460 struct ifnet *ifp = sc->sc_ifp;
461 struct ieee80211com *ic = ifp->if_l2com;
463 wlan_serialize_enter();
465 /* NB: do early to drain any pending tasks */
466 ieee80211_draintask(ic, &sc->sc_radiontask);
467 ieee80211_draintask(ic, &sc->sc_radiofftask);
468 ieee80211_draintask(ic, &sc->sc_restarttask);
469 ieee80211_draintask(ic, &sc->sc_disassoctask);
473 ieee80211_ifdetach(ic);
475 iwi_put_firmware(sc);
476 iwi_release_fw_dma(sc);
478 iwi_free_cmd_ring(sc, &sc->cmdq);
479 iwi_free_tx_ring(sc, &sc->txq[0]);
480 iwi_free_tx_ring(sc, &sc->txq[1]);
481 iwi_free_tx_ring(sc, &sc->txq[2]);
482 iwi_free_tx_ring(sc, &sc->txq[3]);
483 iwi_free_rx_ring(sc, &sc->rxq);
485 bus_teardown_intr(dev, sc->irq, sc->sc_ih);
486 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
488 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
490 devfs_clone_bitmap_uninit(&sc->sc_unr);
492 if (sc->sc_sysctl_tree != NULL)
493 sysctl_ctx_free(&sc->sc_sysctl_ctx);
497 wlan_serialize_exit();
501 static struct ieee80211vap *
502 iwi_vap_create(struct ieee80211com *ic,
503 const char name[IFNAMSIZ], int unit, int opmode, int flags,
504 const uint8_t bssid[IEEE80211_ADDR_LEN],
505 const uint8_t mac[IEEE80211_ADDR_LEN])
507 struct ifnet *ifp = ic->ic_ifp;
508 struct iwi_softc *sc = ifp->if_softc;
510 struct ieee80211vap *vap;
513 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
516 * Get firmware image (and possibly dma memory) on mode change.
518 if (iwi_get_firmware(sc, opmode))
520 /* allocate DMA memory for mapping firmware image */
522 if (sc->fw_boot.size > i)
523 i = sc->fw_boot.size;
524 /* XXX do we dma the ucode as well ? */
525 if (sc->fw_uc.size > i)
527 if (iwi_init_fw_dma(sc, i))
530 ivp = (struct iwi_vap *) kmalloc(sizeof(struct iwi_vap),
531 M_80211_VAP, M_WAITOK | M_ZERO);
535 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
536 /* override the default, the setting comes from the linux driver */
537 vap->iv_bmissthreshold = 24;
538 /* override with driver methods */
539 ivp->iwi_newstate = vap->iv_newstate;
540 vap->iv_newstate = iwi_newstate;
543 ieee80211_vap_attach(vap, ieee80211_media_change, iwi_media_status);
544 ic->ic_opmode = opmode;
549 iwi_vap_delete(struct ieee80211vap *vap)
551 struct iwi_vap *ivp = IWI_VAP(vap);
553 ieee80211_vap_detach(vap);
554 kfree(ivp, M_80211_VAP);
558 iwi_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error)
563 KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
565 *(bus_addr_t *)arg = segs[0].ds_addr;
569 iwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring, int count)
575 ring->cur = ring->next = 0;
577 error = bus_dma_tag_create(NULL, 4, 0,
578 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
579 count * IWI_CMD_DESC_SIZE, 1, count * IWI_CMD_DESC_SIZE,
580 0 , &ring->desc_dmat);
582 device_printf(sc->sc_dev, "could not create desc DMA tag\n");
586 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc,
587 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map);
589 device_printf(sc->sc_dev, "could not allocate DMA memory\n");
593 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc,
594 count * IWI_CMD_DESC_SIZE, iwi_dma_map_addr, &ring->physaddr, 0);
596 device_printf(sc->sc_dev, "could not load desc DMA map\n");
602 fail: iwi_free_cmd_ring(sc, ring);
607 iwi_reset_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring)
610 ring->cur = ring->next = 0;
614 iwi_free_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring)
616 if (ring->desc != NULL) {
617 bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
618 BUS_DMASYNC_POSTWRITE);
619 bus_dmamap_unload(ring->desc_dmat, ring->desc_map);
620 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map);
623 if (ring->desc_dmat != NULL)
624 bus_dma_tag_destroy(ring->desc_dmat);
628 iwi_alloc_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring, int count,
629 bus_addr_t csr_ridx, bus_addr_t csr_widx)
635 ring->cur = ring->next = 0;
636 ring->csr_ridx = csr_ridx;
637 ring->csr_widx = csr_widx;
639 error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT,
640 BUS_SPACE_MAXADDR, NULL, NULL, count * IWI_TX_DESC_SIZE, 1,
641 count * IWI_TX_DESC_SIZE, 0, &ring->desc_dmat);
643 device_printf(sc->sc_dev, "could not create desc DMA tag\n");
647 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc,
648 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map);
650 device_printf(sc->sc_dev, "could not allocate DMA memory\n");
654 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc,
655 count * IWI_TX_DESC_SIZE, iwi_dma_map_addr, &ring->physaddr, 0);
657 device_printf(sc->sc_dev, "could not load desc DMA map\n");
661 ring->data = kmalloc(count * sizeof (struct iwi_tx_data), M_DEVBUF,
664 error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT,
665 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, IWI_MAX_NSEG,
666 MCLBYTES, 0, &ring->data_dmat);
668 device_printf(sc->sc_dev, "could not create data DMA tag\n");
672 for (i = 0; i < count; i++) {
673 error = bus_dmamap_create(ring->data_dmat, 0,
676 device_printf(sc->sc_dev, "could not create DMA map\n");
683 fail: iwi_free_tx_ring(sc, ring);
688 iwi_reset_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring)
690 struct iwi_tx_data *data;
693 for (i = 0; i < ring->count; i++) {
694 data = &ring->data[i];
696 if (data->m != NULL) {
697 bus_dmamap_sync(ring->data_dmat, data->map,
698 BUS_DMASYNC_POSTWRITE);
699 bus_dmamap_unload(ring->data_dmat, data->map);
704 if (data->ni != NULL) {
705 ieee80211_free_node(data->ni);
711 ring->cur = ring->next = 0;
715 iwi_free_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring)
717 struct iwi_tx_data *data;
720 if (ring->desc != NULL) {
721 bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
722 BUS_DMASYNC_POSTWRITE);
723 bus_dmamap_unload(ring->desc_dmat, ring->desc_map);
724 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map);
727 if (ring->desc_dmat != NULL)
728 bus_dma_tag_destroy(ring->desc_dmat);
730 if (ring->data != NULL) {
731 for (i = 0; i < ring->count; i++) {
732 data = &ring->data[i];
734 if (data->m != NULL) {
735 bus_dmamap_sync(ring->data_dmat, data->map,
736 BUS_DMASYNC_POSTWRITE);
737 bus_dmamap_unload(ring->data_dmat, data->map);
741 if (data->ni != NULL)
742 ieee80211_free_node(data->ni);
744 if (data->map != NULL)
745 bus_dmamap_destroy(ring->data_dmat, data->map);
748 kfree(ring->data, M_DEVBUF);
751 if (ring->data_dmat != NULL)
752 bus_dma_tag_destroy(ring->data_dmat);
756 iwi_alloc_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring, int count)
758 struct iwi_rx_data *data;
764 ring->data = kmalloc(count * sizeof (struct iwi_rx_data), M_DEVBUF,
767 error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT,
768 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1, MCLBYTES,
769 0, &ring->data_dmat);
771 device_printf(sc->sc_dev, "could not create data DMA tag\n");
775 for (i = 0; i < count; i++) {
776 data = &ring->data[i];
778 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
780 device_printf(sc->sc_dev, "could not create DMA map\n");
784 data->m = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
785 if (data->m == NULL) {
786 device_printf(sc->sc_dev,
787 "could not allocate rx mbuf\n");
792 error = bus_dmamap_load(ring->data_dmat, data->map,
793 mtod(data->m, void *), MCLBYTES, iwi_dma_map_addr,
796 device_printf(sc->sc_dev,
797 "could not load rx buf DMA map");
801 data->reg = IWI_CSR_RX_BASE + i * 4;
806 fail: iwi_free_rx_ring(sc, ring);
811 iwi_reset_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring)
817 iwi_free_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring)
819 struct iwi_rx_data *data;
822 if (ring->data != NULL) {
823 for (i = 0; i < ring->count; i++) {
824 data = &ring->data[i];
826 if (data->m != NULL) {
827 bus_dmamap_sync(ring->data_dmat, data->map,
828 BUS_DMASYNC_POSTREAD);
829 bus_dmamap_unload(ring->data_dmat, data->map);
833 if (data->map != NULL)
834 bus_dmamap_destroy(ring->data_dmat, data->map);
837 kfree(ring->data, M_DEVBUF);
840 if (ring->data_dmat != NULL)
841 bus_dma_tag_destroy(ring->data_dmat);
845 iwi_shutdown(device_t dev)
847 struct iwi_softc *sc = device_get_softc(dev);
849 wlan_serialize_enter();
851 iwi_put_firmware(sc); /* ??? XXX */
852 wlan_serialize_exit();
858 iwi_suspend(device_t dev)
860 struct iwi_softc *sc = device_get_softc(dev);
862 wlan_serialize_enter();
864 wlan_serialize_exit();
870 iwi_resume(device_t dev)
872 struct iwi_softc *sc = device_get_softc(dev);
873 struct ifnet *ifp = sc->sc_ifp;
875 wlan_serialize_enter();
876 pci_write_config(dev, 0x41, 0, 1);
878 if (ifp->if_flags & IFF_UP)
881 wlan_serialize_exit();
885 static struct ieee80211_node *
886 iwi_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN])
890 in = kmalloc(sizeof (struct iwi_node), M_80211_NODE, M_NOWAIT | M_ZERO);
893 /* XXX assign sta table entry for adhoc */
900 iwi_node_free(struct ieee80211_node *ni)
902 struct ieee80211com *ic = ni->ni_ic;
903 struct iwi_softc *sc = ic->ic_ifp->if_softc;
904 struct iwi_node *in = (struct iwi_node *)ni;
906 if (in->in_station != -1) {
907 DPRINTF(("%s mac %6D station %u\n", __func__,
908 ni->ni_macaddr, ":", in->in_station));
909 devfs_clone_bitmap_put(&sc->sc_unr, in->in_station);
912 sc->sc_node_free(ni);
916 * Convert h/w rate code to IEEE rate code.
919 iwi_cvtrate(int iwirate)
922 case IWI_RATE_DS1: return 2;
923 case IWI_RATE_DS2: return 4;
924 case IWI_RATE_DS5: return 11;
925 case IWI_RATE_DS11: return 22;
926 case IWI_RATE_OFDM6: return 12;
927 case IWI_RATE_OFDM9: return 18;
928 case IWI_RATE_OFDM12: return 24;
929 case IWI_RATE_OFDM18: return 36;
930 case IWI_RATE_OFDM24: return 48;
931 case IWI_RATE_OFDM36: return 72;
932 case IWI_RATE_OFDM48: return 96;
933 case IWI_RATE_OFDM54: return 108;
939 * The firmware automatically adapts the transmit speed. We report its current
943 iwi_media_status(struct ifnet *ifp, struct ifmediareq *imr)
945 struct ieee80211vap *vap = ifp->if_softc;
946 struct ieee80211com *ic = vap->iv_ic;
947 struct iwi_softc *sc = ic->ic_ifp->if_softc;
949 /* read current transmission rate from adapter */
950 vap->iv_bss->ni_txrate =
951 iwi_cvtrate(CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE));
952 ieee80211_media_status(ifp, imr);
956 iwi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
958 struct iwi_vap *ivp = IWI_VAP(vap);
959 struct ieee80211com *ic = vap->iv_ic;
960 struct ifnet *ifp = ic->ic_ifp;
961 struct iwi_softc *sc = ifp->if_softc;
963 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__,
964 ieee80211_state_name[vap->iv_state],
965 ieee80211_state_name[nstate], sc->flags));
968 case IEEE80211_S_INIT:
970 * NB: don't try to do this if iwi_stop_master has
971 * shutdown the firmware and disabled interrupts.
973 if (vap->iv_state == IEEE80211_S_RUN &&
974 (sc->flags & IWI_FLAG_FW_INITED))
975 iwi_disassociate(sc, 0);
977 case IEEE80211_S_AUTH:
978 iwi_auth_and_assoc(sc, vap);
980 case IEEE80211_S_RUN:
981 if (vap->iv_opmode == IEEE80211_M_IBSS &&
982 vap->iv_state == IEEE80211_S_SCAN) {
984 * XXX when joining an ibss network we are called
985 * with a SCAN -> RUN transition on scan complete.
986 * Use that to call iwi_auth_and_assoc. On completing
987 * the join we are then called again with an
988 * AUTH -> RUN transition and we want to do nothing.
989 * This is all totally bogus and needs to be redone.
991 iwi_auth_and_assoc(sc, vap);
994 case IEEE80211_S_ASSOC:
996 * If we are transitioning from AUTH then just wait
997 * for the ASSOC status to come back from the firmware.
998 * Otherwise we need to issue the association request.
1000 if (vap->iv_state == IEEE80211_S_AUTH)
1002 iwi_auth_and_assoc(sc, vap);
1008 return ivp->iwi_newstate(vap, nstate, arg);
1012 * WME parameters coming from IEEE 802.11e specification. These values are
1013 * already declared in ieee80211_proto.c, but they are static so they can't
1016 static const struct wmeParams iwi_wme_cck_params[WME_NUM_AC] = {
1017 { 0, 3, 5, 7, 0 }, /* WME_AC_BE */
1018 { 0, 3, 5, 10, 0 }, /* WME_AC_BK */
1019 { 0, 2, 4, 5, 188 }, /* WME_AC_VI */
1020 { 0, 2, 3, 4, 102 } /* WME_AC_VO */
1023 static const struct wmeParams iwi_wme_ofdm_params[WME_NUM_AC] = {
1024 { 0, 3, 4, 6, 0 }, /* WME_AC_BE */
1025 { 0, 3, 4, 10, 0 }, /* WME_AC_BK */
1026 { 0, 2, 3, 4, 94 }, /* WME_AC_VI */
1027 { 0, 2, 2, 3, 47 } /* WME_AC_VO */
1029 #define IWI_EXP2(v) htole16((1 << (v)) - 1)
1030 #define IWI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v))
1033 iwi_wme_init(struct iwi_softc *sc)
1035 const struct wmeParams *wmep;
1038 memset(sc->wme, 0, sizeof sc->wme);
1039 for (ac = 0; ac < WME_NUM_AC; ac++) {
1040 /* set WME values for CCK modulation */
1041 wmep = &iwi_wme_cck_params[ac];
1042 sc->wme[1].aifsn[ac] = wmep->wmep_aifsn;
1043 sc->wme[1].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin);
1044 sc->wme[1].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax);
1045 sc->wme[1].burst[ac] = IWI_USEC(wmep->wmep_txopLimit);
1046 sc->wme[1].acm[ac] = wmep->wmep_acm;
1048 /* set WME values for OFDM modulation */
1049 wmep = &iwi_wme_ofdm_params[ac];
1050 sc->wme[2].aifsn[ac] = wmep->wmep_aifsn;
1051 sc->wme[2].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin);
1052 sc->wme[2].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax);
1053 sc->wme[2].burst[ac] = IWI_USEC(wmep->wmep_txopLimit);
1054 sc->wme[2].acm[ac] = wmep->wmep_acm;
1059 iwi_wme_setparams(struct iwi_softc *sc, struct ieee80211com *ic)
1061 const struct wmeParams *wmep;
1064 for (ac = 0; ac < WME_NUM_AC; ac++) {
1065 /* set WME values for current operating mode */
1066 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac];
1067 sc->wme[0].aifsn[ac] = wmep->wmep_aifsn;
1068 sc->wme[0].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin);
1069 sc->wme[0].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax);
1070 sc->wme[0].burst[ac] = IWI_USEC(wmep->wmep_txopLimit);
1071 sc->wme[0].acm[ac] = wmep->wmep_acm;
1074 DPRINTF(("Setting WME parameters\n"));
1075 return iwi_cmd(sc, IWI_CMD_SET_WME_PARAMS, sc->wme, sizeof sc->wme);
1081 iwi_update_wme_task(void *arg, int npending)
1083 struct ieee80211com *ic = arg;
1084 struct iwi_softc *sc = ic->ic_ifp->if_softc;
1086 wlan_serialize_enter();
1087 (void) iwi_wme_setparams(sc, ic);
1088 wlan_serialize_exit();
1092 iwi_wme_update(struct ieee80211com *ic)
1094 struct iwi_softc *sc = ic->ic_ifp->if_softc;
1095 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1098 * We may be called to update the WME parameters in
1099 * the adapter at various places. If we're already
1100 * associated then initiate the request immediately;
1101 * otherwise we assume the params will get sent down
1102 * to the adapter as part of the work iwi_auth_and_assoc
1105 if (vap->iv_state == IEEE80211_S_RUN)
1106 ieee80211_runtask(ic, &sc->sc_wmetask);
1111 iwi_wme_setie(struct iwi_softc *sc)
1113 struct ieee80211_wme_info wme;
1115 memset(&wme, 0, sizeof wme);
1116 wme.wme_id = IEEE80211_ELEMID_VENDOR;
1117 wme.wme_len = sizeof (struct ieee80211_wme_info) - 2;
1118 wme.wme_oui[0] = 0x00;
1119 wme.wme_oui[1] = 0x50;
1120 wme.wme_oui[2] = 0xf2;
1121 wme.wme_type = WME_OUI_TYPE;
1122 wme.wme_subtype = WME_INFO_OUI_SUBTYPE;
1123 wme.wme_version = WME_VERSION;
1126 DPRINTF(("Setting WME IE (len=%u)\n", wme.wme_len));
1127 return iwi_cmd(sc, IWI_CMD_SET_WMEIE, &wme, sizeof wme);
1131 * Read 16 bits at address 'addr' from the serial EEPROM.
1134 iwi_read_prom_word(struct iwi_softc *sc, uint8_t addr)
1140 /* clock C once before the first command */
1141 IWI_EEPROM_CTL(sc, 0);
1142 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1143 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C);
1144 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1146 /* write start bit (1) */
1147 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D);
1148 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C);
1150 /* write READ opcode (10) */
1151 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D);
1152 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C);
1153 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1154 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C);
1156 /* write address A7-A0 */
1157 for (n = 7; n >= 0; n--) {
1158 IWI_EEPROM_CTL(sc, IWI_EEPROM_S |
1159 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D));
1160 IWI_EEPROM_CTL(sc, IWI_EEPROM_S |
1161 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D) | IWI_EEPROM_C);
1164 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1166 /* read data Q15-Q0 */
1168 for (n = 15; n >= 0; n--) {
1169 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C);
1170 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1171 tmp = MEM_READ_4(sc, IWI_MEM_EEPROM_CTL);
1172 val |= ((tmp & IWI_EEPROM_Q) >> IWI_EEPROM_SHIFT_Q) << n;
1175 IWI_EEPROM_CTL(sc, 0);
1177 /* clear Chip Select and clock C */
1178 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1179 IWI_EEPROM_CTL(sc, 0);
1180 IWI_EEPROM_CTL(sc, IWI_EEPROM_C);
1186 iwi_setcurchan(struct iwi_softc *sc, int chan)
1188 struct ifnet *ifp = sc->sc_ifp;
1189 struct ieee80211com *ic = ifp->if_l2com;
1192 ieee80211_radiotap_chan_change(ic);
1196 iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i,
1197 struct iwi_frame *frame)
1199 struct ifnet *ifp = sc->sc_ifp;
1200 struct ieee80211com *ic = ifp->if_l2com;
1201 struct mbuf *mnew, *m;
1202 struct ieee80211_node *ni;
1203 int type, error, framelen;
1206 framelen = le16toh(frame->len);
1207 if (framelen < IEEE80211_MIN_LEN || framelen > MCLBYTES) {
1209 * XXX >MCLBYTES is bogus as it means the h/w dma'd
1210 * out of bounds; need to figure out how to limit
1211 * frame size in the firmware
1215 ("drop rx frame len=%u chan=%u rssi=%u rssi_dbm=%u\n",
1216 le16toh(frame->len), frame->chan, frame->rssi,
1221 DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u rssi_dbm=%u\n",
1222 le16toh(frame->len), frame->chan, frame->rssi, frame->rssi_dbm));
1224 if (frame->chan != sc->curchan)
1225 iwi_setcurchan(sc, frame->chan);
1228 * Try to allocate a new mbuf for this ring element and load it before
1229 * processing the current mbuf. If the ring element cannot be loaded,
1230 * drop the received packet and reuse the old mbuf. In the unlikely
1231 * case that the old mbuf can't be reloaded either, explicitly panic.
1233 mnew = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
1239 bus_dmamap_unload(sc->rxq.data_dmat, data->map);
1241 error = bus_dmamap_load(sc->rxq.data_dmat, data->map,
1242 mtod(mnew, void *), MCLBYTES, iwi_dma_map_addr, &data->physaddr,
1247 /* try to reload the old mbuf */
1248 error = bus_dmamap_load(sc->rxq.data_dmat, data->map,
1249 mtod(data->m, void *), MCLBYTES, iwi_dma_map_addr,
1250 &data->physaddr, 0);
1252 /* very unlikely that it will fail... */
1253 panic("%s: could not load old rx mbuf",
1254 device_get_name(sc->sc_dev));
1261 * New mbuf successfully loaded, update Rx ring and continue
1266 CSR_WRITE_4(sc, data->reg, data->physaddr);
1269 m->m_pkthdr.rcvif = ifp;
1270 m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) +
1271 sizeof (struct iwi_frame) + framelen;
1273 m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame));
1275 rssi = frame->rssi_dbm;
1277 if (ieee80211_radiotap_active(ic)) {
1278 struct iwi_rx_radiotap_header *tap = &sc->sc_rxtap;
1281 tap->wr_antsignal = rssi;
1282 tap->wr_antnoise = nf;
1283 tap->wr_rate = iwi_cvtrate(frame->rate);
1284 tap->wr_antenna = frame->antenna;
1287 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *));
1289 type = ieee80211_input(ni, m, rssi, nf);
1290 ieee80211_free_node(ni);
1292 type = ieee80211_input_all(ic, m, rssi, nf);
1294 if (sc->sc_softled) {
1296 * Blink for any data frame. Otherwise do a
1297 * heartbeat-style blink when idle. The latter
1298 * is mainly for station mode where we depend on
1299 * periodic beacon frames to trigger the poll event.
1301 if (type == IEEE80211_FC0_TYPE_DATA) {
1302 sc->sc_rxrate = frame->rate;
1303 iwi_led_event(sc, IWI_LED_RX);
1304 } else if (ticks - sc->sc_ledevent >= sc->sc_ledidle)
1305 iwi_led_event(sc, IWI_LED_POLL);
1310 * Check for an association response frame to see if QoS
1311 * has been negotiated. We parse just enough to figure
1312 * out if we're supposed to use QoS. The proper solution
1313 * is to pass the frame up so ieee80211_input can do the
1314 * work but that's made hard by how things currently are
1315 * done in the driver.
1318 iwi_checkforqos(struct ieee80211vap *vap,
1319 const struct ieee80211_frame *wh, int len)
1321 #define SUBTYPE(wh) ((wh)->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK)
1322 const uint8_t *frm, *efrm, *wme;
1323 struct ieee80211_node *ni;
1324 uint16_t capinfo, associd;
1326 /* NB: +8 for capinfo, status, associd, and first ie */
1327 if (!(sizeof(*wh)+8 < len && len < IEEE80211_MAX_LEN) ||
1328 SUBTYPE(wh) != IEEE80211_FC0_SUBTYPE_ASSOC_RESP)
1331 * asresp frame format
1332 * [2] capability information
1334 * [2] association ID
1335 * [tlv] supported rates
1336 * [tlv] extended supported rates
1339 frm = (const uint8_t *)&wh[1];
1340 efrm = ((const uint8_t *) wh) + len;
1342 capinfo = le16toh(*(const uint16_t *)frm);
1345 associd = le16toh(*(const uint16_t *)frm);
1349 while (frm < efrm) {
1350 IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1], return);
1352 case IEEE80211_ELEMID_VENDOR:
1361 ni->ni_capinfo = capinfo;
1362 ni->ni_associd = associd;
1364 ni->ni_flags |= IEEE80211_NODE_QOS;
1366 ni->ni_flags &= ~IEEE80211_NODE_QOS;
1371 * Task queue callbacks for iwi_notification_intr used to avoid LOR's.
1375 iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif)
1377 struct ifnet *ifp = sc->sc_ifp;
1378 struct ieee80211com *ic = ifp->if_l2com;
1379 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1380 struct iwi_notif_scan_channel *chan;
1381 struct iwi_notif_scan_complete *scan;
1382 struct iwi_notif_authentication *auth;
1383 struct iwi_notif_association *assoc;
1384 struct iwi_notif_beacon_state *beacon;
1386 switch (notif->type) {
1387 case IWI_NOTIF_TYPE_SCAN_CHANNEL:
1388 chan = (struct iwi_notif_scan_channel *)(notif + 1);
1390 DPRINTFN(3, ("Scan of channel %u complete (%u)\n",
1391 ieee80211_ieee2mhz(chan->nchan, 0), chan->nchan));
1393 /* Reset the timer, the scan is still going */
1394 sc->sc_state_timer = 3;
1397 case IWI_NOTIF_TYPE_SCAN_COMPLETE:
1398 scan = (struct iwi_notif_scan_complete *)(notif + 1);
1400 DPRINTFN(2, ("Scan completed (%u, %u)\n", scan->nchan,
1403 IWI_STATE_END(sc, IWI_FW_SCANNING);
1405 if (scan->status == IWI_SCAN_COMPLETED) {
1406 /* NB: don't need to defer, net80211 does it for us */
1407 ieee80211_scan_next(vap);
1411 case IWI_NOTIF_TYPE_AUTHENTICATION:
1412 auth = (struct iwi_notif_authentication *)(notif + 1);
1413 switch (auth->state) {
1414 case IWI_AUTH_SUCCESS:
1415 DPRINTFN(2, ("Authentication succeeeded\n"));
1416 ieee80211_new_state(vap, IEEE80211_S_ASSOC, -1);
1420 * These are delivered as an unsolicited deauth
1421 * (e.g. due to inactivity) or in response to an
1422 * associate request.
1424 sc->flags &= ~IWI_FLAG_ASSOCIATED;
1425 if (vap->iv_state != IEEE80211_S_RUN) {
1426 DPRINTFN(2, ("Authentication failed\n"));
1427 vap->iv_stats.is_rx_auth_fail++;
1428 IWI_STATE_END(sc, IWI_FW_ASSOCIATING);
1430 DPRINTFN(2, ("Deauthenticated\n"));
1431 vap->iv_stats.is_rx_deauth++;
1433 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1);
1435 case IWI_AUTH_SENT_1:
1436 case IWI_AUTH_RECV_2:
1437 case IWI_AUTH_SEQ1_PASS:
1439 case IWI_AUTH_SEQ1_FAIL:
1440 DPRINTFN(2, ("Initial authentication handshake failed; "
1441 "you probably need shared key\n"));
1442 vap->iv_stats.is_rx_auth_fail++;
1443 IWI_STATE_END(sc, IWI_FW_ASSOCIATING);
1444 /* XXX retry shared key when in auto */
1447 device_printf(sc->sc_dev,
1448 "unknown authentication state %u\n", auth->state);
1453 case IWI_NOTIF_TYPE_ASSOCIATION:
1454 assoc = (struct iwi_notif_association *)(notif + 1);
1455 switch (assoc->state) {
1456 case IWI_AUTH_SUCCESS:
1457 /* re-association, do nothing */
1459 case IWI_ASSOC_SUCCESS:
1460 DPRINTFN(2, ("Association succeeded\n"));
1461 sc->flags |= IWI_FLAG_ASSOCIATED;
1462 IWI_STATE_END(sc, IWI_FW_ASSOCIATING);
1463 iwi_checkforqos(vap,
1464 (const struct ieee80211_frame *)(assoc+1),
1465 le16toh(notif->len) - sizeof(*assoc));
1466 ieee80211_new_state(vap, IEEE80211_S_RUN, -1);
1468 case IWI_ASSOC_INIT:
1469 sc->flags &= ~IWI_FLAG_ASSOCIATED;
1470 switch (sc->fw_state) {
1471 case IWI_FW_ASSOCIATING:
1472 DPRINTFN(2, ("Association failed\n"));
1473 IWI_STATE_END(sc, IWI_FW_ASSOCIATING);
1474 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1);
1477 case IWI_FW_DISASSOCIATING:
1478 DPRINTFN(2, ("Dissassociated\n"));
1479 IWI_STATE_END(sc, IWI_FW_DISASSOCIATING);
1480 vap->iv_stats.is_rx_disassoc++;
1481 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1);
1486 device_printf(sc->sc_dev,
1487 "unknown association state %u\n", assoc->state);
1492 case IWI_NOTIF_TYPE_BEACON:
1493 /* XXX check struct length */
1494 beacon = (struct iwi_notif_beacon_state *)(notif + 1);
1496 DPRINTFN(5, ("Beacon state (%u, %u)\n",
1497 beacon->state, le32toh(beacon->number)));
1499 if (beacon->state == IWI_BEACON_MISS) {
1501 * The firmware notifies us of every beacon miss
1502 * so we need to track the count against the
1503 * configured threshold before notifying the
1505 * XXX try to roam, drop assoc only on much higher count
1507 if (le32toh(beacon->number) >= vap->iv_bmissthreshold) {
1508 DPRINTF(("Beacon miss: %u >= %u\n",
1509 le32toh(beacon->number),
1510 vap->iv_bmissthreshold));
1511 vap->iv_stats.is_beacon_miss++;
1513 * It's pointless to notify the 802.11 layer
1514 * as it'll try to send a probe request (which
1515 * we'll discard) and then timeout and drop us
1516 * into scan state. Instead tell the firmware
1517 * to disassociate and then on completion we'll
1518 * kick the state machine to scan.
1520 ieee80211_runtask(ic, &sc->sc_disassoctask);
1525 case IWI_NOTIF_TYPE_CALIBRATION:
1526 case IWI_NOTIF_TYPE_NOISE:
1527 case IWI_NOTIF_TYPE_LINK_QUALITY:
1528 DPRINTFN(5, ("Notification (%u)\n", notif->type));
1532 DPRINTF(("unknown notification type %u flags 0x%x len %u\n",
1533 notif->type, notif->flags, le16toh(notif->len)));
1539 iwi_rx_intr(struct iwi_softc *sc)
1541 struct iwi_rx_data *data;
1542 struct iwi_hdr *hdr;
1545 hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX);
1547 for (; sc->rxq.cur != hw;) {
1548 data = &sc->rxq.data[sc->rxq.cur];
1550 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
1551 BUS_DMASYNC_POSTREAD);
1553 hdr = mtod(data->m, struct iwi_hdr *);
1555 switch (hdr->type) {
1556 case IWI_HDR_TYPE_FRAME:
1557 iwi_frame_intr(sc, data, sc->rxq.cur,
1558 (struct iwi_frame *)(hdr + 1));
1561 case IWI_HDR_TYPE_NOTIF:
1562 iwi_notification_intr(sc,
1563 (struct iwi_notif *)(hdr + 1));
1567 device_printf(sc->sc_dev, "unknown hdr type %u\n",
1571 DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur));
1573 sc->rxq.cur = (sc->rxq.cur + 1) % IWI_RX_RING_COUNT;
1576 /* tell the firmware what we have processed */
1577 hw = (hw == 0) ? IWI_RX_RING_COUNT - 1 : hw - 1;
1578 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw);
1582 iwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq)
1584 struct ifnet *ifp = sc->sc_ifp;
1585 struct iwi_tx_data *data;
1588 hw = CSR_READ_4(sc, txq->csr_ridx);
1590 for (; txq->next != hw;) {
1591 data = &txq->data[txq->next];
1593 bus_dmamap_sync(txq->data_dmat, data->map,
1594 BUS_DMASYNC_POSTWRITE);
1595 bus_dmamap_unload(txq->data_dmat, data->map);
1596 if (data->m->m_flags & M_TXCB)
1597 ieee80211_process_callback(data->ni, data->m, 0/*XXX*/);
1600 ieee80211_free_node(data->ni);
1603 DPRINTFN(15, ("tx done idx=%u\n", txq->next));
1608 txq->next = (txq->next + 1) % IWI_TX_RING_COUNT;
1611 sc->sc_tx_timer = 0;
1612 ifq_clr_oactive(&ifp->if_snd);
1615 iwi_led_event(sc, IWI_LED_TX);
1617 iwi_start_locked(ifp);
1621 iwi_fatal_error_intr(struct iwi_softc *sc)
1623 struct ifnet *ifp = sc->sc_ifp;
1624 struct ieee80211com *ic = ifp->if_l2com;
1625 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1627 device_printf(sc->sc_dev, "firmware error\n");
1629 ieee80211_cancel_scan(vap);
1630 ieee80211_runtask(ic, &sc->sc_restarttask);
1632 sc->flags &= ~IWI_FLAG_BUSY;
1633 sc->sc_busy_timer = 0;
1638 iwi_radio_off_intr(struct iwi_softc *sc)
1640 struct ifnet *ifp = sc->sc_ifp;
1641 struct ieee80211com *ic = ifp->if_l2com;
1643 ieee80211_runtask(ic, &sc->sc_radiofftask);
1649 struct iwi_softc *sc = arg;
1652 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) {
1656 /* acknowledge interrupts */
1657 CSR_WRITE_4(sc, IWI_CSR_INTR, r);
1659 if (r & IWI_INTR_FATAL_ERROR) {
1660 iwi_fatal_error_intr(sc);
1664 if (r & IWI_INTR_FW_INITED) {
1665 if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR)))
1669 if (r & IWI_INTR_RADIO_OFF)
1670 iwi_radio_off_intr(sc);
1672 if (r & IWI_INTR_CMD_DONE) {
1673 sc->flags &= ~IWI_FLAG_BUSY;
1674 sc->sc_busy_timer = 0;
1678 if (r & IWI_INTR_TX1_DONE)
1679 iwi_tx_intr(sc, &sc->txq[0]);
1681 if (r & IWI_INTR_TX2_DONE)
1682 iwi_tx_intr(sc, &sc->txq[1]);
1684 if (r & IWI_INTR_TX3_DONE)
1685 iwi_tx_intr(sc, &sc->txq[2]);
1687 if (r & IWI_INTR_TX4_DONE)
1688 iwi_tx_intr(sc, &sc->txq[3]);
1690 if (r & IWI_INTR_RX_DONE)
1693 if (r & IWI_INTR_PARITY_ERROR) {
1694 /* XXX rate-limit */
1695 device_printf(sc->sc_dev, "parity error\n");
1700 iwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len)
1702 struct iwi_cmd_desc *desc;
1704 if (sc->flags & IWI_FLAG_BUSY) {
1705 device_printf(sc->sc_dev, "%s: cmd %d not sent, busy\n",
1710 sc->flags |= IWI_FLAG_BUSY;
1711 sc->sc_busy_timer = 2;
1713 desc = &sc->cmdq.desc[sc->cmdq.cur];
1715 desc->hdr.type = IWI_HDR_TYPE_COMMAND;
1716 desc->hdr.flags = IWI_HDR_FLAG_IRQ;
1719 memcpy(desc->data, data, len);
1721 bus_dmamap_sync(sc->cmdq.desc_dmat, sc->cmdq.desc_map,
1722 BUS_DMASYNC_PREWRITE);
1724 DPRINTFN(2, ("sending command idx=%u type=%u len=%u\n", sc->cmdq.cur,
1727 sc->cmdq.cur = (sc->cmdq.cur + 1) % IWI_CMD_RING_COUNT;
1728 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur);
1730 return zsleep(sc, &wlan_global_serializer, 0, "iwicmd", hz);
1734 iwi_write_ibssnode(struct iwi_softc *sc,
1735 const u_int8_t addr[IEEE80211_ADDR_LEN], int entry)
1737 struct iwi_ibssnode node;
1739 /* write node information into NIC memory */
1740 memset(&node, 0, sizeof node);
1741 IEEE80211_ADDR_COPY(node.bssid, addr);
1743 DPRINTF(("%s mac %6D station %u\n", __func__, node.bssid, ":", entry));
1745 CSR_WRITE_REGION_1(sc,
1746 IWI_CSR_NODE_BASE + entry * sizeof node,
1747 (uint8_t *)&node, sizeof node);
1751 iwi_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni,
1754 struct iwi_softc *sc = ifp->if_softc;
1755 struct ieee80211vap *vap = ni->ni_vap;
1756 struct ieee80211com *ic = ni->ni_ic;
1757 struct iwi_node *in = (struct iwi_node *)ni;
1758 const struct ieee80211_frame *wh;
1759 struct ieee80211_key *k;
1760 const struct chanAccParams *cap;
1761 struct iwi_tx_ring *txq = &sc->txq[ac];
1762 struct iwi_tx_data *data;
1763 struct iwi_tx_desc *desc;
1765 bus_dma_segment_t segs[IWI_MAX_NSEG];
1766 int error, nsegs, hdrlen, i;
1767 int ismcast, flags, xflags, staid;
1769 wh = mtod(m0, const struct ieee80211_frame *);
1770 /* NB: only data frames use this path */
1771 hdrlen = ieee80211_hdrsize(wh);
1772 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1);
1776 flags |= IWI_DATA_FLAG_NEED_ACK;
1777 if (vap->iv_flags & IEEE80211_F_SHPREAMBLE)
1778 flags |= IWI_DATA_FLAG_SHPREAMBLE;
1779 if (IEEE80211_QOS_HAS_SEQ(wh)) {
1780 xflags |= IWI_DATA_XFLAG_QOS;
1781 cap = &ic->ic_wme.wme_chanParams;
1782 if (!cap->cap_wmeParams[ac].wmep_noackPolicy)
1783 flags &= ~IWI_DATA_FLAG_NEED_ACK;
1787 * This is only used in IBSS mode where the firmware expect an index
1788 * in a h/w table instead of a destination address.
1790 if (vap->iv_opmode == IEEE80211_M_IBSS) {
1792 if (in->in_station == -1) {
1793 in->in_station = devfs_clone_bitmap_get(&sc->sc_unr,
1794 IWI_MAX_IBSSNODE-1);
1795 if (in->in_station == -1) {
1796 /* h/w table is full */
1798 ieee80211_free_node(ni);
1802 iwi_write_ibssnode(sc,
1803 ni->ni_macaddr, in->in_station);
1805 staid = in->in_station;
1808 * Multicast addresses have no associated node
1809 * so there will be no station entry. We reserve
1810 * entry 0 for one mcast address and use that.
1811 * If there are many being used this will be
1812 * expensive and we'll need to do a better job
1813 * but for now this handles the broadcast case.
1815 if (!IEEE80211_ADDR_EQ(wh->i_addr1, sc->sc_mcast)) {
1816 IEEE80211_ADDR_COPY(sc->sc_mcast, wh->i_addr1);
1817 iwi_write_ibssnode(sc, sc->sc_mcast, 0);
1824 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1825 k = ieee80211_crypto_encap(ni, m0);
1831 /* packet header may have moved, reset our local pointer */
1832 wh = mtod(m0, struct ieee80211_frame *);
1835 if (ieee80211_radiotap_active_vap(vap)) {
1836 struct iwi_tx_radiotap_header *tap = &sc->sc_txtap;
1840 ieee80211_radiotap_tx(vap, m0);
1843 data = &txq->data[txq->cur];
1844 desc = &txq->desc[txq->cur];
1846 /* save and trim IEEE802.11 header */
1847 m_copydata(m0, 0, hdrlen, (caddr_t)&desc->wh);
1850 error = bus_dmamap_load_mbuf_segment(txq->data_dmat, data->map,
1851 m0, segs, 1, &nsegs, BUS_DMA_NOWAIT);
1852 if (error != 0 && error != EFBIG) {
1853 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1859 mnew = m_defrag(m0, MB_DONTWAIT);
1861 device_printf(sc->sc_dev,
1862 "could not defragment mbuf\n");
1868 error = bus_dmamap_load_mbuf_segment(txq->data_dmat,
1869 data->map, m0, segs, 1, &nsegs, BUS_DMA_NOWAIT);
1871 device_printf(sc->sc_dev,
1872 "could not map mbuf (error %d)\n", error);
1881 desc->hdr.type = IWI_HDR_TYPE_DATA;
1882 desc->hdr.flags = IWI_HDR_FLAG_IRQ;
1883 desc->station = staid;
1884 desc->cmd = IWI_DATA_CMD_TX;
1885 desc->len = htole16(m0->m_pkthdr.len);
1886 desc->flags = flags;
1887 desc->xflags = xflags;
1890 if (vap->iv_flags & IEEE80211_F_PRIVACY)
1891 desc->wep_txkey = vap->iv_def_txkey;
1894 desc->flags |= IWI_DATA_FLAG_NO_WEP;
1896 desc->nseg = htole32(nsegs);
1897 for (i = 0; i < nsegs; i++) {
1898 desc->seg_addr[i] = htole32(segs[i].ds_addr);
1899 desc->seg_len[i] = htole16(segs[i].ds_len);
1902 bus_dmamap_sync(txq->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1903 bus_dmamap_sync(txq->desc_dmat, txq->desc_map, BUS_DMASYNC_PREWRITE);
1905 DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n",
1906 ac, txq->cur, le16toh(desc->len), nsegs));
1909 txq->cur = (txq->cur + 1) % IWI_TX_RING_COUNT;
1910 CSR_WRITE_4(sc, txq->csr_widx, txq->cur);
1916 iwi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
1917 const struct ieee80211_bpf_params *params)
1919 /* no support; just discard */
1921 ieee80211_free_node(ni);
1926 iwi_start_locked(struct ifnet *ifp)
1928 struct iwi_softc *sc = ifp->if_softc;
1930 struct ieee80211_node *ni;
1933 if ((ifp->if_flags & IFF_RUNNING) == 0)
1937 m = ifq_dequeue(&ifp->if_snd, NULL);
1940 ac = M_WME_GETAC(m);
1941 if (sc->txq[ac].queued > IWI_TX_RING_COUNT - 8) {
1942 /* there is no place left in this ring; tail drop */
1944 ifq_prepend(&ifp->if_snd, m);
1945 ifq_set_oactive(&ifp->if_snd);
1949 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1950 if (iwi_tx_start(ifp, m, ni, ac) != 0) {
1951 ieee80211_free_node(ni);
1956 sc->sc_tx_timer = 5;
1961 iwi_start(struct ifnet *ifp, struct ifaltq_subque *ifsq)
1963 ASSERT_ALTQ_SQ_DEFAULT(ifp, ifsq);
1964 iwi_start_locked(ifp);
1968 iwi_watchdog(void *arg)
1970 struct iwi_softc *sc = arg;
1971 struct ifnet *ifp = sc->sc_ifp;
1972 struct ieee80211com *ic = ifp->if_l2com;
1974 wlan_serialize_enter();
1975 if (sc->sc_tx_timer > 0) {
1976 if (--sc->sc_tx_timer == 0) {
1977 if_printf(ifp, "device timeout\n");
1979 wlan_serialize_exit();
1980 ieee80211_runtask(ic, &sc->sc_restarttask);
1981 wlan_serialize_enter();
1984 if (sc->sc_state_timer > 0) {
1985 if (--sc->sc_state_timer == 0) {
1986 if_printf(ifp, "firmware stuck in state %d, resetting\n",
1988 if (sc->fw_state == IWI_FW_SCANNING) {
1989 struct ieee80211com *ic = ifp->if_l2com;
1990 ieee80211_cancel_scan(TAILQ_FIRST(&ic->ic_vaps));
1992 wlan_serialize_exit();
1993 ieee80211_runtask(ic, &sc->sc_restarttask);
1994 wlan_serialize_enter();
1995 sc->sc_state_timer = 3;
1998 if (sc->sc_busy_timer > 0) {
1999 if (--sc->sc_busy_timer == 0) {
2000 if_printf(ifp, "firmware command timeout, resetting\n");
2001 wlan_serialize_exit();
2002 ieee80211_runtask(ic, &sc->sc_restarttask);
2003 wlan_serialize_enter();
2006 callout_reset(&sc->sc_wdtimer_callout, hz, iwi_watchdog, sc);
2007 wlan_serialize_exit();
2011 iwi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *ucred)
2013 struct iwi_softc *sc = ifp->if_softc;
2014 struct ieee80211com *ic = ifp->if_l2com;
2015 struct ifreq *ifr = (struct ifreq *) data;
2016 int error = 0, startall = 0;
2020 if (ifp->if_flags & IFF_UP) {
2021 if (!(ifp->if_flags & IFF_RUNNING)) {
2022 iwi_init_locked(sc);
2026 if (ifp->if_flags & IFF_RUNNING)
2027 iwi_stop_locked(sc);
2030 ieee80211_start_all(ic);
2033 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
2036 error = ether_ioctl(ifp, cmd, data);
2046 iwi_stop_master(struct iwi_softc *sc)
2051 /* disable interrupts */
2052 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0);
2054 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER);
2055 for (ntries = 0; ntries < 5; ntries++) {
2056 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED)
2061 device_printf(sc->sc_dev, "timeout waiting for master\n");
2063 tmp = CSR_READ_4(sc, IWI_CSR_RST);
2064 CSR_WRITE_4(sc, IWI_CSR_RST, tmp | IWI_RST_PRINCETON_RESET);
2066 sc->flags &= ~IWI_FLAG_FW_INITED;
2070 iwi_reset(struct iwi_softc *sc)
2075 iwi_stop_master(sc);
2077 tmp = CSR_READ_4(sc, IWI_CSR_CTL);
2078 CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_INIT);
2080 CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST);
2082 /* wait for clock stabilization */
2083 for (ntries = 0; ntries < 1000; ntries++) {
2084 if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY)
2088 if (ntries == 1000) {
2089 device_printf(sc->sc_dev,
2090 "timeout waiting for clock stabilization\n");
2094 tmp = CSR_READ_4(sc, IWI_CSR_RST);
2095 CSR_WRITE_4(sc, IWI_CSR_RST, tmp | IWI_RST_SOFT_RESET);
2099 tmp = CSR_READ_4(sc, IWI_CSR_CTL);
2100 CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_INIT);
2102 /* clear NIC memory */
2103 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0);
2104 for (i = 0; i < 0xc000; i++)
2105 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0);
2110 static const struct iwi_firmware_ohdr *
2111 iwi_setup_ofw(struct iwi_softc *sc, struct iwi_fw *fw)
2113 const struct firmware *fp = fw->fp;
2114 const struct iwi_firmware_ohdr *hdr;
2116 if (fp->datasize < sizeof (struct iwi_firmware_ohdr)) {
2117 device_printf(sc->sc_dev, "image '%s' too small\n", fp->name);
2120 hdr = (const struct iwi_firmware_ohdr *)fp->data;
2121 if ((IWI_FW_GET_MAJOR(le32toh(hdr->version)) != IWI_FW_REQ_MAJOR) ||
2122 (IWI_FW_GET_MINOR(le32toh(hdr->version)) != IWI_FW_REQ_MINOR)) {
2123 device_printf(sc->sc_dev, "version for '%s' %d.%d != %d.%d\n",
2124 fp->name, IWI_FW_GET_MAJOR(le32toh(hdr->version)),
2125 IWI_FW_GET_MINOR(le32toh(hdr->version)), IWI_FW_REQ_MAJOR,
2129 fw->data = ((const char *) fp->data) + sizeof(struct iwi_firmware_ohdr);
2130 fw->size = fp->datasize - sizeof(struct iwi_firmware_ohdr);
2131 fw->name = fp->name;
2135 static const struct iwi_firmware_ohdr *
2136 iwi_setup_oucode(struct iwi_softc *sc, struct iwi_fw *fw)
2138 const struct iwi_firmware_ohdr *hdr;
2140 hdr = iwi_setup_ofw(sc, fw);
2141 if (hdr != NULL && le32toh(hdr->mode) != IWI_FW_MODE_UCODE) {
2142 device_printf(sc->sc_dev, "%s is not a ucode image\n",
2150 iwi_getfw(struct iwi_fw *fw, const char *fwname,
2151 struct iwi_fw *uc, const char *ucname)
2153 wlan_assert_serialized();
2154 wlan_serialize_exit();
2156 fw->fp = firmware_get(fwname);
2158 /* NB: pre-3.0 ucode is packaged separately */
2159 if (uc->fp == NULL && fw->fp != NULL && fw->fp->version < 300)
2160 uc->fp = firmware_get(ucname);
2161 wlan_serialize_enter();
2165 * Get the required firmware images if not already loaded.
2166 * Note that we hold firmware images so long as the device
2167 * is marked up in case we need to reload them on device init.
2168 * This is necessary because we re-init the device sometimes
2169 * from a context where we cannot read from the filesystem
2170 * (e.g. from the taskqueue thread when rfkill is re-enabled).
2171 * XXX return 0 on success, 1 on error.
2173 * NB: the order of get'ing and put'ing images here is
2174 * intentional to support handling firmware images bundled
2175 * by operating mode and/or all together in one file with
2176 * the boot firmware as "master".
2179 iwi_get_firmware(struct iwi_softc *sc, enum ieee80211_opmode opmode)
2181 const struct iwi_firmware_hdr *hdr;
2182 const struct firmware *fp;
2184 wlan_serialize_enter();
2186 /* invalidate cached firmware on mode change */
2187 if (sc->fw_mode != opmode)
2188 iwi_put_firmware(sc);
2191 case IEEE80211_M_STA:
2192 iwi_getfw(&sc->fw_fw, "iwi_bss", &sc->fw_uc, "iwi_ucode_bss");
2194 case IEEE80211_M_IBSS:
2195 iwi_getfw(&sc->fw_fw, "iwi_ibss", &sc->fw_uc, "iwi_ucode_ibss");
2197 case IEEE80211_M_MONITOR:
2198 iwi_getfw(&sc->fw_fw, "iwi_monitor",
2199 &sc->fw_uc, "iwi_ucode_monitor");
2202 device_printf(sc->sc_dev, "unknown opmode %d\n", opmode);
2203 wlan_serialize_exit();
2208 device_printf(sc->sc_dev, "could not load firmware\n");
2211 if (fp->version < 300) {
2213 * Firmware prior to 3.0 was packaged as separate
2214 * boot, firmware, and ucode images. Verify the
2215 * ucode image was read in, retrieve the boot image
2216 * if needed, and check version stamps for consistency.
2217 * The version stamps in the data are also checked
2218 * above; this is a bit paranoid but is a cheap
2219 * safeguard against mis-packaging.
2221 if (sc->fw_uc.fp == NULL) {
2222 device_printf(sc->sc_dev, "could not load ucode\n");
2225 if (sc->fw_boot.fp == NULL) {
2226 sc->fw_boot.fp = firmware_get("iwi_boot");
2227 if (sc->fw_boot.fp == NULL) {
2228 device_printf(sc->sc_dev,
2229 "could not load boot firmware\n");
2233 if (sc->fw_boot.fp->version != sc->fw_fw.fp->version ||
2234 sc->fw_boot.fp->version != sc->fw_uc.fp->version) {
2235 device_printf(sc->sc_dev,
2236 "firmware version mismatch: "
2237 "'%s' is %d, '%s' is %d, '%s' is %d\n",
2238 sc->fw_boot.fp->name, sc->fw_boot.fp->version,
2239 sc->fw_uc.fp->name, sc->fw_uc.fp->version,
2240 sc->fw_fw.fp->name, sc->fw_fw.fp->version
2245 * Check and setup each image.
2247 if (iwi_setup_oucode(sc, &sc->fw_uc) == NULL ||
2248 iwi_setup_ofw(sc, &sc->fw_boot) == NULL ||
2249 iwi_setup_ofw(sc, &sc->fw_fw) == NULL)
2253 * Check and setup combined image.
2255 if (fp->datasize < sizeof(struct iwi_firmware_hdr)) {
2256 device_printf(sc->sc_dev, "image '%s' too small\n",
2260 hdr = (const struct iwi_firmware_hdr *)fp->data;
2261 if (fp->datasize < sizeof(*hdr) + le32toh(hdr->bsize) + le32toh(hdr->usize)
2262 + le32toh(hdr->fsize)) {
2263 device_printf(sc->sc_dev, "image '%s' too small (2)\n",
2267 sc->fw_boot.data = ((const char *) fp->data) + sizeof(*hdr);
2268 sc->fw_boot.size = le32toh(hdr->bsize);
2269 sc->fw_boot.name = fp->name;
2270 sc->fw_uc.data = sc->fw_boot.data + sc->fw_boot.size;
2271 sc->fw_uc.size = le32toh(hdr->usize);
2272 sc->fw_uc.name = fp->name;
2273 sc->fw_fw.data = sc->fw_uc.data + sc->fw_uc.size;
2274 sc->fw_fw.size = le32toh(hdr->fsize);
2275 sc->fw_fw.name = fp->name;
2278 device_printf(sc->sc_dev, "boot %d ucode %d fw %d bytes\n",
2279 sc->fw_boot.size, sc->fw_uc.size, sc->fw_fw.size);
2282 sc->fw_mode = opmode;
2283 wlan_serialize_exit();
2286 iwi_put_firmware(sc);
2287 wlan_serialize_exit();
2292 iwi_put_fw(struct iwi_fw *fw)
2294 wlan_assert_serialized();
2295 wlan_serialize_exit();
2296 if (fw->fp != NULL) {
2297 firmware_put(fw->fp, FIRMWARE_UNLOAD);
2300 wlan_serialize_enter();
2307 * Release any cached firmware images.
2310 iwi_put_firmware(struct iwi_softc *sc)
2312 iwi_put_fw(&sc->fw_uc);
2313 iwi_put_fw(&sc->fw_fw);
2314 iwi_put_fw(&sc->fw_boot);
2318 iwi_load_ucode(struct iwi_softc *sc, const struct iwi_fw *fw)
2322 const char *uc = fw->data;
2323 size_t size = fw->size;
2324 int i, ntries, error;
2327 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) |
2328 IWI_RST_STOP_MASTER);
2329 for (ntries = 0; ntries < 5; ntries++) {
2330 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED)
2335 device_printf(sc->sc_dev, "timeout waiting for master\n");
2340 MEM_WRITE_4(sc, 0x3000e0, 0x80000000);
2343 tmp = CSR_READ_4(sc, IWI_CSR_RST);
2344 tmp &= ~IWI_RST_PRINCETON_RESET;
2345 CSR_WRITE_4(sc, IWI_CSR_RST, tmp);
2348 MEM_WRITE_4(sc, 0x3000e0, 0);
2350 MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, 1);
2352 MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, 0);
2354 MEM_WRITE_1(sc, 0x200000, 0x00);
2355 MEM_WRITE_1(sc, 0x200000, 0x40);
2358 /* write microcode into adapter memory */
2359 for (w = (const uint16_t *)uc; size > 0; w++, size -= 2)
2360 MEM_WRITE_2(sc, 0x200010, htole16(*w));
2362 MEM_WRITE_1(sc, 0x200000, 0x00);
2363 MEM_WRITE_1(sc, 0x200000, 0x80);
2365 /* wait until we get an answer */
2366 for (ntries = 0; ntries < 100; ntries++) {
2367 if (MEM_READ_1(sc, 0x200000) & 1)
2371 if (ntries == 100) {
2372 device_printf(sc->sc_dev,
2373 "timeout waiting for ucode to initialize\n");
2378 /* read the answer or the firmware will not initialize properly */
2379 for (i = 0; i < 7; i++)
2380 MEM_READ_4(sc, 0x200004);
2382 MEM_WRITE_1(sc, 0x200000, 0x00);
2388 /* macro to handle unaligned little endian data in firmware image */
2389 #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24)
2392 iwi_load_firmware(struct iwi_softc *sc, const struct iwi_fw *fw)
2395 uint32_t sentinel, ctl, src, dst, sum, len, mlen, tmp;
2398 /* copy firmware image to DMA memory */
2399 memcpy(sc->fw_virtaddr, fw->data, fw->size);
2401 /* make sure the adapter will get up-to-date values */
2402 bus_dmamap_sync(sc->fw_dmat, sc->fw_map, BUS_DMASYNC_PREWRITE);
2404 /* tell the adapter where the command blocks are stored */
2405 MEM_WRITE_4(sc, 0x3000a0, 0x27000);
2408 * Store command blocks into adapter's internal memory using register
2409 * indirections. The adapter will read the firmware image through DMA
2410 * using information stored in command blocks.
2412 src = sc->fw_physaddr;
2413 p = sc->fw_virtaddr;
2415 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000);
2418 dst = GETLE32(p); p += 4; src += 4;
2419 len = GETLE32(p); p += 4; src += 4;
2423 mlen = min(len, IWI_CB_MAXDATALEN);
2425 ctl = IWI_CB_DEFAULT_CTL | mlen;
2426 sum = ctl ^ src ^ dst;
2428 /* write a command block */
2429 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl);
2430 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, src);
2431 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, dst);
2432 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum);
2440 /* write a fictive final command block (sentinel) */
2441 sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR);
2442 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0);
2444 tmp = CSR_READ_4(sc, IWI_CSR_RST);
2445 tmp &= ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER);
2446 CSR_WRITE_4(sc, IWI_CSR_RST, tmp);
2448 /* tell the adapter to start processing command blocks */
2449 MEM_WRITE_4(sc, 0x3000a4, 0x540100);
2451 /* wait until the adapter reaches the sentinel */
2452 for (ntries = 0; ntries < 400; ntries++) {
2453 if (MEM_READ_4(sc, 0x3000d0) >= sentinel)
2457 /* sync dma, just in case */
2458 bus_dmamap_sync(sc->fw_dmat, sc->fw_map, BUS_DMASYNC_POSTWRITE);
2459 if (ntries == 400) {
2460 device_printf(sc->sc_dev,
2461 "timeout processing command blocks for %s firmware\n",
2466 /* we're done with command blocks processing */
2467 MEM_WRITE_4(sc, 0x3000a4, 0x540c00);
2469 /* allow interrupts so we know when the firmware is ready */
2470 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK);
2472 /* tell the adapter to initialize the firmware */
2473 CSR_WRITE_4(sc, IWI_CSR_RST, 0);
2475 tmp = CSR_READ_4(sc, IWI_CSR_CTL);
2476 CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_ALLOW_STANDBY);
2478 /* wait at most one second for firmware initialization to complete */
2479 error = zsleep(sc, &wlan_global_serializer, 0, "iwiinit", hz);
2481 device_printf(sc->sc_dev, "timeout waiting for firmware "
2482 "initialization to complete\n");
2489 iwi_setpowermode(struct iwi_softc *sc, struct ieee80211vap *vap)
2493 if (vap->iv_flags & IEEE80211_F_PMGTON) {
2494 /* XXX set more fine-grained operation */
2495 data = htole32(IWI_POWER_MODE_MAX);
2497 data = htole32(IWI_POWER_MODE_CAM);
2499 DPRINTF(("Setting power mode to %u\n", le32toh(data)));
2500 return iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data);
2504 iwi_setwepkeys(struct iwi_softc *sc, struct ieee80211vap *vap)
2506 struct iwi_wep_key wepkey;
2507 struct ieee80211_key *wk;
2510 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2511 wk = &vap->iv_nw_keys[i];
2513 wepkey.cmd = IWI_WEP_KEY_CMD_SETKEY;
2515 wepkey.len = wk->wk_keylen;
2516 memset(wepkey.key, 0, sizeof wepkey.key);
2517 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen);
2518 DPRINTF(("Setting wep key index %u len %u\n", wepkey.idx,
2520 error = iwi_cmd(sc, IWI_CMD_SET_WEP_KEY, &wepkey,
2529 iwi_config(struct iwi_softc *sc)
2531 struct ifnet *ifp = sc->sc_ifp;
2532 struct ieee80211com *ic = ifp->if_l2com;
2533 struct iwi_configuration config;
2534 struct iwi_rateset rs;
2535 struct iwi_txpower power;
2538 const uint8_t *eaddr = IF_LLADDR(ifp);
2540 DPRINTF(("Setting MAC address to %6D\n", eaddr, ":"));
2541 error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, IF_LLADDR(ifp),
2542 IEEE80211_ADDR_LEN);
2546 memset(&config, 0, sizeof config);
2547 config.bluetooth_coexistence = sc->bluetooth;
2548 config.silence_threshold = 0x1e;
2549 config.antenna = sc->antenna;
2550 config.multicast_enabled = 1;
2551 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0;
2552 config.disable_unicast_decryption = 1;
2553 config.disable_multicast_decryption = 1;
2554 DPRINTF(("Configuring adapter\n"));
2555 error = iwi_cmd(sc, IWI_CMD_SET_CONFIG, &config, sizeof config);
2558 if (ic->ic_opmode == IEEE80211_M_IBSS) {
2559 power.mode = IWI_MODE_11B;
2561 for (i = 0; i < 11; i++) {
2562 power.chan[i].chan = i + 1;
2563 power.chan[i].power = IWI_TXPOWER_MAX;
2565 DPRINTF(("Setting .11b channels tx power\n"));
2566 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power);
2570 power.mode = IWI_MODE_11G;
2571 DPRINTF(("Setting .11g channels tx power\n"));
2572 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power);
2577 memset(&rs, 0, sizeof rs);
2578 rs.mode = IWI_MODE_11G;
2579 rs.type = IWI_RATESET_TYPE_SUPPORTED;
2580 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates;
2581 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates,
2583 DPRINTF(("Setting .11bg supported rates (%u)\n", rs.nrates));
2584 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs);
2588 memset(&rs, 0, sizeof rs);
2589 rs.mode = IWI_MODE_11A;
2590 rs.type = IWI_RATESET_TYPE_SUPPORTED;
2591 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates;
2592 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11A].rs_rates,
2594 DPRINTF(("Setting .11a supported rates (%u)\n", rs.nrates));
2595 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs);
2599 data = htole32(karc4random());
2600 DPRINTF(("Setting initialization vector to %u\n", le32toh(data)));
2601 error = iwi_cmd(sc, IWI_CMD_SET_IV, &data, sizeof data);
2605 /* enable adapter */
2606 DPRINTF(("Enabling adapter\n"));
2607 return iwi_cmd(sc, IWI_CMD_ENABLE, NULL, 0);
2610 static __inline void
2611 set_scan_type(struct iwi_scan_ext *scan, int ix, int scan_type)
2613 uint8_t *st = &scan->scan_type[ix / 2];
2615 *st = (*st & 0xf0) | ((scan_type & 0xf) << 0);
2617 *st = (*st & 0x0f) | ((scan_type & 0xf) << 4);
2621 scan_type(const struct ieee80211_scan_state *ss,
2622 const struct ieee80211_channel *chan)
2624 /* We can only set one essid for a directed scan */
2625 if (ss->ss_nssid != 0)
2626 return IWI_SCAN_TYPE_BDIRECTED;
2627 if ((ss->ss_flags & IEEE80211_SCAN_ACTIVE) &&
2628 (chan->ic_flags & IEEE80211_CHAN_PASSIVE) == 0)
2629 return IWI_SCAN_TYPE_BROADCAST;
2630 return IWI_SCAN_TYPE_PASSIVE;
2634 scan_band(const struct ieee80211_channel *c)
2636 return IEEE80211_IS_CHAN_5GHZ(c) ? IWI_CHAN_5GHZ : IWI_CHAN_2GHZ;
2640 * Start a scan on the current channel or all channels.
2643 iwi_scanchan(struct iwi_softc *sc, unsigned long maxdwell, int allchan)
2645 struct ieee80211com *ic;
2646 struct ieee80211_channel *chan;
2647 struct ieee80211_scan_state *ss;
2648 struct iwi_scan_ext scan;
2651 if (sc->fw_state == IWI_FW_SCANNING) {
2653 * This should not happen as we only trigger scan_next after
2656 DPRINTF(("%s: called too early - still scanning\n", __func__));
2659 IWI_STATE_BEGIN(sc, IWI_FW_SCANNING);
2661 ic = sc->sc_ifp->if_l2com;
2664 memset(&scan, 0, sizeof scan);
2665 scan.full_scan_index = htole32(++sc->sc_scangen);
2666 scan.dwell_time[IWI_SCAN_TYPE_PASSIVE] = htole16(maxdwell);
2667 if (ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN) {
2669 * Use very short dwell times for when we send probe request
2670 * frames. Without this bg scans hang. Ideally this should
2671 * be handled with early-termination as done by net80211 but
2672 * that's not feasible (aborting a scan is problematic).
2674 scan.dwell_time[IWI_SCAN_TYPE_BROADCAST] = htole16(30);
2675 scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED] = htole16(30);
2677 scan.dwell_time[IWI_SCAN_TYPE_BROADCAST] = htole16(maxdwell);
2678 scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED] = htole16(maxdwell);
2681 /* We can only set one essid for a directed scan */
2682 if (ss->ss_nssid != 0) {
2683 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ss->ss_ssid[0].ssid,
2684 ss->ss_ssid[0].len);
2690 int i, next, band, b, bstart;
2692 * Convert scan list to run-length encoded channel list
2693 * the firmware requires (preserving the order setup by
2694 * net80211). The first entry in each run specifies the
2695 * band and the count of items in the run.
2697 next = 0; /* next open slot */
2698 bstart = 0; /* NB: not needed, silence compiler */
2699 band = -1; /* NB: impossible value */
2700 KASSERT(ss->ss_last > 0, ("no channels"));
2701 for (i = 0; i < ss->ss_last; i++) {
2702 chan = ss->ss_chans[i];
2703 b = scan_band(chan);
2706 scan.channels[bstart] =
2707 (next - bstart) | band;
2708 /* NB: this allocates a slot for the run-len */
2709 band = b, bstart = next++;
2711 if (next >= IWI_SCAN_CHANNELS) {
2712 DPRINTF(("truncating scan list\n"));
2715 scan.channels[next] = ieee80211_chan2ieee(ic, chan);
2716 set_scan_type(&scan, next, scan_type(ss, chan));
2719 scan.channels[bstart] = (next - bstart) | band;
2721 /* Scan the current channel only */
2722 chan = ic->ic_curchan;
2723 scan.channels[0] = 1 | scan_band(chan);
2724 scan.channels[1] = ieee80211_chan2ieee(ic, chan);
2725 set_scan_type(&scan, 1, scan_type(ss, chan));
2728 if (iwi_debug > 0) {
2729 static const char *scantype[8] =
2730 { "PSTOP", "PASV", "DIR", "BCAST", "BDIR", "5", "6", "7" };
2732 kprintf("Scan request: index %u dwell %d/%d/%d\n"
2733 , le32toh(scan.full_scan_index)
2734 , le16toh(scan.dwell_time[IWI_SCAN_TYPE_PASSIVE])
2735 , le16toh(scan.dwell_time[IWI_SCAN_TYPE_BROADCAST])
2736 , le16toh(scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED])
2740 int run = scan.channels[i];
2743 kprintf("Scan %d %s channels:", run & 0x3f,
2744 run & IWI_CHAN_2GHZ ? "2.4GHz" : "5GHz");
2745 for (run &= 0x3f, i++; run > 0; run--, i++) {
2746 uint8_t type = scan.scan_type[i/2];
2747 kprintf(" %u/%s", scan.channels[i],
2748 scantype[(i & 1 ? type : type>>4) & 7]);
2751 } while (i < IWI_SCAN_CHANNELS);
2755 return (iwi_cmd(sc, IWI_CMD_SCAN_EXT, &scan, sizeof scan));
2759 iwi_set_sensitivity(struct iwi_softc *sc, int8_t rssi_dbm)
2761 struct iwi_sensitivity sens;
2763 DPRINTF(("Setting sensitivity to %d\n", rssi_dbm));
2765 memset(&sens, 0, sizeof sens);
2766 sens.rssi = htole16(rssi_dbm);
2767 return iwi_cmd(sc, IWI_CMD_SET_SENSITIVITY, &sens, sizeof sens);
2771 iwi_auth_and_assoc(struct iwi_softc *sc, struct ieee80211vap *vap)
2773 struct ieee80211com *ic = vap->iv_ic;
2774 struct ifnet *ifp = vap->iv_ifp;
2775 struct ieee80211_node *ni = vap->iv_bss;
2776 struct iwi_configuration config;
2777 struct iwi_associate *assoc = &sc->assoc;
2778 struct iwi_rateset rs;
2783 if (sc->flags & IWI_FLAG_ASSOCIATED) {
2784 DPRINTF(("Already associated\n"));
2788 IWI_STATE_BEGIN(sc, IWI_FW_ASSOCIATING);
2792 if (IEEE80211_IS_CHAN_A(ic->ic_curchan))
2793 mode = IWI_MODE_11A;
2794 else if (IEEE80211_IS_CHAN_G(ic->ic_curchan))
2795 mode = IWI_MODE_11G;
2796 if (IEEE80211_IS_CHAN_B(ic->ic_curchan))
2797 mode = IWI_MODE_11B;
2799 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) {
2800 memset(&config, 0, sizeof config);
2801 config.bluetooth_coexistence = sc->bluetooth;
2802 config.antenna = sc->antenna;
2803 config.multicast_enabled = 1;
2804 if (mode == IWI_MODE_11G)
2805 config.use_protection = 1;
2806 config.answer_pbreq =
2807 (vap->iv_opmode == IEEE80211_M_IBSS) ? 1 : 0;
2808 config.disable_unicast_decryption = 1;
2809 config.disable_multicast_decryption = 1;
2810 DPRINTF(("Configuring adapter\n"));
2811 error = iwi_cmd(sc, IWI_CMD_SET_CONFIG, &config, sizeof config);
2817 if (iwi_debug > 0) {
2818 kprintf("Setting ESSID to ");
2819 ieee80211_print_essid(ni->ni_essid, ni->ni_esslen);
2823 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen);
2827 error = iwi_setpowermode(sc, vap);
2831 data = htole32(vap->iv_rtsthreshold);
2832 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data)));
2833 error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data);
2837 data = htole32(vap->iv_fragthreshold);
2838 DPRINTF(("Setting fragmentation threshold to %u\n", le32toh(data)));
2839 error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data);
2843 /* the rate set has already been "negotiated" */
2844 memset(&rs, 0, sizeof rs);
2846 rs.type = IWI_RATESET_TYPE_NEGOTIATED;
2847 rs.nrates = ni->ni_rates.rs_nrates;
2848 if (rs.nrates > IWI_RATESET_SIZE) {
2849 DPRINTF(("Truncating negotiated rate set from %u\n",
2851 rs.nrates = IWI_RATESET_SIZE;
2853 memcpy(rs.rates, ni->ni_rates.rs_rates, rs.nrates);
2854 DPRINTF(("Setting negotiated rates (%u)\n", rs.nrates));
2855 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs);
2859 memset(assoc, 0, sizeof *assoc);
2861 if ((vap->iv_flags & IEEE80211_F_WME) && ni->ni_ies.wme_ie != NULL) {
2862 /* NB: don't treat WME setup as failure */
2863 if (iwi_wme_setparams(sc, ic) == 0 && iwi_wme_setie(sc) == 0)
2864 assoc->policy |= htole16(IWI_POLICY_WME);
2865 /* XXX complain on failure? */
2868 if (vap->iv_appie_wpa != NULL) {
2869 struct ieee80211_appie *ie = vap->iv_appie_wpa;
2871 DPRINTF(("Setting optional IE (len=%u)\n", ie->ie_len));
2872 error = iwi_cmd(sc, IWI_CMD_SET_OPTIE, ie->ie_data, ie->ie_len);
2877 error = iwi_set_sensitivity(sc, ic->ic_node_getrssi(ni));
2882 assoc->chan = ic->ic_curchan->ic_ieee;
2884 * NB: do not arrange for shared key auth w/o privacy
2885 * (i.e. a wep key); it causes a firmware error.
2887 if ((vap->iv_flags & IEEE80211_F_PRIVACY) &&
2888 ni->ni_authmode == IEEE80211_AUTH_SHARED) {
2889 assoc->auth = IWI_AUTH_SHARED;
2891 * It's possible to have privacy marked but no default
2892 * key setup. This typically is due to a user app bug
2893 * but if we blindly grab the key the firmware will
2894 * barf so avoid it for now.
2896 if (vap->iv_def_txkey != IEEE80211_KEYIX_NONE)
2897 assoc->auth |= vap->iv_def_txkey << 4;
2899 error = iwi_setwepkeys(sc, vap);
2903 if (vap->iv_flags & IEEE80211_F_WPA)
2904 assoc->policy |= htole16(IWI_POLICY_WPA);
2905 if (vap->iv_opmode == IEEE80211_M_IBSS && ni->ni_tstamp.tsf == 0)
2906 assoc->type = IWI_HC_IBSS_START;
2908 assoc->type = IWI_HC_ASSOC;
2909 memcpy(assoc->tstamp, ni->ni_tstamp.data, 8);
2911 if (vap->iv_opmode == IEEE80211_M_IBSS)
2912 capinfo = IEEE80211_CAPINFO_IBSS;
2914 capinfo = IEEE80211_CAPINFO_ESS;
2915 if (vap->iv_flags & IEEE80211_F_PRIVACY)
2916 capinfo |= IEEE80211_CAPINFO_PRIVACY;
2917 if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) &&
2918 IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan))
2919 capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE;
2920 if (ni->ni_capinfo & IEEE80211_CAPINFO_SHORT_SLOTTIME)
2921 capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME;
2922 assoc->capinfo = htole16(capinfo);
2924 assoc->lintval = htole16(ic->ic_lintval);
2925 assoc->intval = htole16(ni->ni_intval);
2926 IEEE80211_ADDR_COPY(assoc->bssid, ni->ni_bssid);
2927 if (vap->iv_opmode == IEEE80211_M_IBSS)
2928 IEEE80211_ADDR_COPY(assoc->dst, ifp->if_broadcastaddr);
2930 IEEE80211_ADDR_COPY(assoc->dst, ni->ni_bssid);
2932 DPRINTF(("%s bssid %6D dst %6D channel %u policy 0x%x "
2933 "auth %u capinfo 0x%x lintval %u bintval %u\n",
2934 assoc->type == IWI_HC_IBSS_START ? "Start" : "Join",
2935 assoc->bssid, ":", assoc->dst, ":",
2936 assoc->chan, le16toh(assoc->policy), assoc->auth,
2937 le16toh(assoc->capinfo), le16toh(assoc->lintval),
2938 le16toh(assoc->intval)));
2939 error = iwi_cmd(sc, IWI_CMD_ASSOCIATE, assoc, sizeof *assoc);
2942 IWI_STATE_END(sc, IWI_FW_ASSOCIATING);
2948 iwi_disassoc_task(void *arg, int pending)
2950 struct iwi_softc *sc = arg;
2952 wlan_serialize_enter();
2953 iwi_disassociate(sc, 0);
2954 wlan_serialize_exit();
2958 iwi_disassociate(struct iwi_softc *sc, int quiet)
2960 struct iwi_associate *assoc = &sc->assoc;
2962 if ((sc->flags & IWI_FLAG_ASSOCIATED) == 0) {
2963 DPRINTF(("Not associated\n"));
2967 IWI_STATE_BEGIN(sc, IWI_FW_DISASSOCIATING);
2970 assoc->type = IWI_HC_DISASSOC_QUIET;
2972 assoc->type = IWI_HC_DISASSOC;
2974 DPRINTF(("Trying to disassociate from %6D channel %u\n",
2975 assoc->bssid, ":", assoc->chan));
2976 return iwi_cmd(sc, IWI_CMD_ASSOCIATE, assoc, sizeof *assoc);
2980 * release dma resources for the firmware
2983 iwi_release_fw_dma(struct iwi_softc *sc)
2985 if (sc->fw_flags & IWI_FW_HAVE_PHY)
2986 bus_dmamap_unload(sc->fw_dmat, sc->fw_map);
2987 if (sc->fw_flags & IWI_FW_HAVE_MAP)
2988 bus_dmamem_free(sc->fw_dmat, sc->fw_virtaddr, sc->fw_map);
2989 if (sc->fw_flags & IWI_FW_HAVE_DMAT)
2990 bus_dma_tag_destroy(sc->fw_dmat);
2993 sc->fw_dma_size = 0;
2996 sc->fw_physaddr = 0;
2997 sc->fw_virtaddr = NULL;
3001 * allocate the dma descriptor for the firmware.
3002 * Return 0 on success, 1 on error.
3003 * Must be called unlocked, protected by IWI_FLAG_FW_LOADING.
3006 iwi_init_fw_dma(struct iwi_softc *sc, int size)
3008 if (sc->fw_dma_size >= size)
3010 if (bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT,
3011 BUS_SPACE_MAXADDR, NULL, NULL, size, 1, size,
3012 0, &sc->fw_dmat) != 0) {
3013 device_printf(sc->sc_dev,
3014 "could not create firmware DMA tag\n");
3017 sc->fw_flags |= IWI_FW_HAVE_DMAT;
3018 if (bus_dmamem_alloc(sc->fw_dmat, &sc->fw_virtaddr, 0,
3019 &sc->fw_map) != 0) {
3020 device_printf(sc->sc_dev,
3021 "could not allocate firmware DMA memory\n");
3024 sc->fw_flags |= IWI_FW_HAVE_MAP;
3025 if (bus_dmamap_load(sc->fw_dmat, sc->fw_map, sc->fw_virtaddr,
3026 size, iwi_dma_map_addr, &sc->fw_physaddr, 0) != 0) {
3027 device_printf(sc->sc_dev, "could not load firmware DMA map\n");
3030 sc->fw_flags |= IWI_FW_HAVE_PHY;
3031 sc->fw_dma_size = size;
3035 iwi_release_fw_dma(sc);
3040 iwi_init_locked(struct iwi_softc *sc)
3042 struct ifnet *ifp = sc->sc_ifp;
3043 struct iwi_rx_data *data;
3046 if (sc->fw_state == IWI_FW_LOADING) {
3047 device_printf(sc->sc_dev, "%s: already loading\n", __func__);
3048 return; /* XXX: condvar? */
3051 iwi_stop_locked(sc);
3053 IWI_STATE_BEGIN(sc, IWI_FW_LOADING);
3055 if (iwi_reset(sc) != 0) {
3056 device_printf(sc->sc_dev, "could not reset adapter\n");
3059 if (iwi_load_firmware(sc, &sc->fw_boot) != 0) {
3060 device_printf(sc->sc_dev,
3061 "could not load boot firmware %s\n", sc->fw_boot.name);
3064 if (iwi_load_ucode(sc, &sc->fw_uc) != 0) {
3065 device_printf(sc->sc_dev,
3066 "could not load microcode %s\n", sc->fw_uc.name);
3070 iwi_stop_master(sc);
3072 CSR_WRITE_4(sc, IWI_CSR_CMD_BASE, sc->cmdq.physaddr);
3073 CSR_WRITE_4(sc, IWI_CSR_CMD_SIZE, sc->cmdq.count);
3074 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur);
3076 CSR_WRITE_4(sc, IWI_CSR_TX1_BASE, sc->txq[0].physaddr);
3077 CSR_WRITE_4(sc, IWI_CSR_TX1_SIZE, sc->txq[0].count);
3078 CSR_WRITE_4(sc, IWI_CSR_TX1_WIDX, sc->txq[0].cur);
3080 CSR_WRITE_4(sc, IWI_CSR_TX2_BASE, sc->txq[1].physaddr);
3081 CSR_WRITE_4(sc, IWI_CSR_TX2_SIZE, sc->txq[1].count);
3082 CSR_WRITE_4(sc, IWI_CSR_TX2_WIDX, sc->txq[1].cur);
3084 CSR_WRITE_4(sc, IWI_CSR_TX3_BASE, sc->txq[2].physaddr);
3085 CSR_WRITE_4(sc, IWI_CSR_TX3_SIZE, sc->txq[2].count);
3086 CSR_WRITE_4(sc, IWI_CSR_TX3_WIDX, sc->txq[2].cur);
3088 CSR_WRITE_4(sc, IWI_CSR_TX4_BASE, sc->txq[3].physaddr);
3089 CSR_WRITE_4(sc, IWI_CSR_TX4_SIZE, sc->txq[3].count);
3090 CSR_WRITE_4(sc, IWI_CSR_TX4_WIDX, sc->txq[3].cur);
3092 for (i = 0; i < sc->rxq.count; i++) {
3093 data = &sc->rxq.data[i];
3094 CSR_WRITE_4(sc, data->reg, data->physaddr);
3097 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, sc->rxq.count - 1);
3099 if (iwi_load_firmware(sc, &sc->fw_fw) != 0) {
3100 device_printf(sc->sc_dev,
3101 "could not load main firmware %s\n", sc->fw_fw.name);
3104 sc->flags |= IWI_FLAG_FW_INITED;
3106 IWI_STATE_END(sc, IWI_FW_LOADING);
3108 if (iwi_config(sc) != 0) {
3109 device_printf(sc->sc_dev, "unable to enable adapter\n");
3113 callout_reset(&sc->sc_wdtimer_callout, hz, iwi_watchdog, sc);
3114 ifq_clr_oactive(&ifp->if_snd);
3115 ifp->if_flags |= IFF_RUNNING;
3118 IWI_STATE_END(sc, IWI_FW_LOADING);
3120 iwi_stop_locked(sc);
3124 iwi_init(void *priv)
3126 struct iwi_softc *sc = priv;
3127 struct ifnet *ifp = sc->sc_ifp;
3128 struct ieee80211com *ic = ifp->if_l2com;
3130 iwi_init_locked(sc);
3132 if (ifp->if_flags & IFF_RUNNING)
3133 ieee80211_start_all(ic);
3137 iwi_stop_locked(void *priv)
3139 struct iwi_softc *sc = priv;
3140 struct ifnet *ifp = sc->sc_ifp;
3142 ifp->if_flags &= ~IFF_RUNNING;
3143 ifq_clr_oactive(&ifp->if_snd);
3145 if (sc->sc_softled) {
3146 callout_stop(&sc->sc_ledtimer_callout);
3147 sc->sc_blinking = 0;
3149 callout_stop(&sc->sc_wdtimer_callout);
3150 callout_stop(&sc->sc_rftimer_callout);
3152 iwi_stop_master(sc);
3154 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_SOFT_RESET);
3157 iwi_reset_cmd_ring(sc, &sc->cmdq);
3158 iwi_reset_tx_ring(sc, &sc->txq[0]);
3159 iwi_reset_tx_ring(sc, &sc->txq[1]);
3160 iwi_reset_tx_ring(sc, &sc->txq[2]);
3161 iwi_reset_tx_ring(sc, &sc->txq[3]);
3162 iwi_reset_rx_ring(sc, &sc->rxq);
3164 sc->sc_tx_timer = 0;
3165 sc->sc_state_timer = 0;
3166 sc->sc_busy_timer = 0;
3167 sc->flags &= ~(IWI_FLAG_BUSY | IWI_FLAG_ASSOCIATED);
3168 sc->fw_state = IWI_FW_IDLE;
3173 iwi_stop(struct iwi_softc *sc)
3175 iwi_stop_locked(sc);
3179 iwi_restart_task(void *arg, int npending)
3181 struct iwi_softc *sc = arg;
3183 wlan_serialize_enter();
3185 wlan_serialize_exit();
3189 * Return whether or not the radio is enabled in hardware
3190 * (i.e. the rfkill switch is "off").
3193 iwi_getrfkill(struct iwi_softc *sc)
3195 return (CSR_READ_4(sc, IWI_CSR_IO) & IWI_IO_RADIO_ENABLED) == 0;
3199 iwi_radio_on_task(void *arg, int pending)
3201 struct iwi_softc *sc = arg;
3202 struct ieee80211com *ic = sc->sc_ifp->if_l2com;
3204 wlan_serialize_enter();
3205 device_printf(sc->sc_dev, "radio turned on\n");
3208 ieee80211_notify_radio(ic, 1);
3209 wlan_serialize_exit();
3213 iwi_rfkill_poll(void *arg)
3215 struct iwi_softc *sc = arg;
3218 * Check for a change in rfkill state. We get an
3219 * interrupt when a radio is disabled but not when
3220 * it is enabled so we must poll for the latter.
3222 if (!iwi_getrfkill(sc)) {
3223 struct ifnet *ifp = sc->sc_ifp;
3224 struct ieee80211com *ic = ifp->if_l2com;
3226 ieee80211_runtask(ic, &sc->sc_radiontask);
3229 callout_reset(&sc->sc_rftimer_callout, 2*hz, iwi_rfkill_poll, sc);
3233 iwi_radio_off_task(void *arg, int pending)
3235 struct iwi_softc *sc = arg;
3236 struct ieee80211com *ic = sc->sc_ifp->if_l2com;
3238 wlan_serialize_enter();
3239 device_printf(sc->sc_dev, "radio turned off\n");
3241 ieee80211_notify_radio(ic, 0);
3243 iwi_stop_locked(sc);
3244 iwi_rfkill_poll(sc);
3245 wlan_serialize_exit();
3249 iwi_sysctl_stats(SYSCTL_HANDLER_ARGS)
3251 struct iwi_softc *sc = arg1;
3252 uint32_t size, buf[128];
3254 memset(buf, 0, sizeof buf);
3256 if (!(sc->flags & IWI_FLAG_FW_INITED))
3257 return SYSCTL_OUT(req, buf, sizeof buf);
3259 size = min(CSR_READ_4(sc, IWI_CSR_TABLE0_SIZE), 128 - 1);
3260 CSR_READ_REGION_4(sc, IWI_CSR_TABLE0_BASE, &buf[1], size);
3262 return SYSCTL_OUT(req, buf, size);
3266 iwi_sysctl_radio(SYSCTL_HANDLER_ARGS)
3268 struct iwi_softc *sc = arg1;
3269 int val = !iwi_getrfkill(sc);
3271 return SYSCTL_OUT(req, &val, sizeof val);
3278 iwi_sysctlattach(struct iwi_softc *sc)
3280 struct sysctl_ctx_list *ctx;
3281 struct sysctl_oid *tree;
3283 ctx = &sc->sc_sysctl_ctx;
3284 sysctl_ctx_init(ctx);
3286 tree = SYSCTL_ADD_NODE(ctx, SYSCTL_STATIC_CHILDREN(_hw),
3288 device_get_nameunit(sc->sc_dev),
3291 device_printf(sc->sc_dev, "can't add sysctl node\n");
3295 sc->sc_sysctl_tree = tree;
3297 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "radio",
3298 CTLTYPE_INT | CTLFLAG_RD, sc, 0, iwi_sysctl_radio, "I",
3299 "radio transmitter switch state (0=off, 1=on)");
3301 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "stats",
3302 CTLTYPE_OPAQUE | CTLFLAG_RD, sc, 0, iwi_sysctl_stats, "S",
3306 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "bluetooth",
3307 CTLFLAG_RW, &sc->bluetooth, 0, "bluetooth coexistence");
3309 sc->antenna = IWI_ANTENNA_AUTO;
3310 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "antenna",
3311 CTLFLAG_RW, &sc->antenna, 0, "antenna (0=auto)");
3317 * Different cards have different capabilities. Some have three
3318 * led's while others have only one. The linux ipw driver defines
3319 * led's for link state (associated or not), band (11a, 11g, 11b),
3320 * and for link activity. We use one led and vary the blink rate
3321 * according to the tx/rx traffic a la the ath driver.
3324 static __inline uint32_t
3325 iwi_toggle_event(uint32_t r)
3327 return r &~ (IWI_RST_STANDBY | IWI_RST_GATE_ODMA |
3328 IWI_RST_GATE_IDMA | IWI_RST_GATE_ADMA);
3332 iwi_read_event(struct iwi_softc *sc)
3334 return MEM_READ_4(sc, IWI_MEM_EEPROM_EVENT);
3338 iwi_write_event(struct iwi_softc *sc, uint32_t v)
3340 MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, v);
3344 iwi_led_done(void *arg)
3346 struct iwi_softc *sc = arg;
3348 sc->sc_blinking = 0;
3352 * Turn the activity LED off: flip the pin and then set a timer so no
3353 * update will happen for the specified duration.
3356 iwi_led_off(void *arg)
3358 struct iwi_softc *sc = arg;
3361 v = iwi_read_event(sc);
3362 v &= ~sc->sc_ledpin;
3363 iwi_write_event(sc, iwi_toggle_event(v));
3364 callout_reset(&sc->sc_ledtimer_callout, sc->sc_ledoff, iwi_led_done, sc);
3368 * Blink the LED according to the specified on/off times.
3371 iwi_led_blink(struct iwi_softc *sc, int on, int off)
3375 v = iwi_read_event(sc);
3377 iwi_write_event(sc, iwi_toggle_event(v));
3378 sc->sc_blinking = 1;
3379 sc->sc_ledoff = off;
3380 callout_reset(&sc->sc_ledtimer_callout, on, iwi_led_off, sc);
3384 iwi_led_event(struct iwi_softc *sc, int event)
3386 /* NB: on/off times from the Atheros NDIS driver, w/ permission */
3387 static const struct {
3388 u_int rate; /* tx/rx iwi rate */
3389 u_int16_t timeOn; /* LED on time (ms) */
3390 u_int16_t timeOff; /* LED off time (ms) */
3392 { IWI_RATE_OFDM54, 40, 10 },
3393 { IWI_RATE_OFDM48, 44, 11 },
3394 { IWI_RATE_OFDM36, 50, 13 },
3395 { IWI_RATE_OFDM24, 57, 14 },
3396 { IWI_RATE_OFDM18, 67, 16 },
3397 { IWI_RATE_OFDM12, 80, 20 },
3398 { IWI_RATE_DS11, 100, 25 },
3399 { IWI_RATE_OFDM9, 133, 34 },
3400 { IWI_RATE_OFDM6, 160, 40 },
3401 { IWI_RATE_DS5, 200, 50 },
3402 { 6, 240, 58 }, /* XXX 3Mb/s if it existed */
3403 { IWI_RATE_DS2, 267, 66 },
3404 { IWI_RATE_DS1, 400, 100 },
3405 { 0, 500, 130 }, /* unknown rate/polling */
3408 int j = 0; /* XXX silence compiler */
3410 sc->sc_ledevent = ticks; /* time of last event */
3411 if (sc->sc_blinking) /* don't interrupt active blink */
3415 j = NELEM(blinkrates)-1;
3418 /* read current transmission rate from adapter */
3419 txrate = CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE);
3420 if (blinkrates[sc->sc_txrix].rate != txrate) {
3421 for (j = 0; j < NELEM(blinkrates)-1; j++)
3422 if (blinkrates[j].rate == txrate)
3429 if (blinkrates[sc->sc_rxrix].rate != sc->sc_rxrate) {
3430 for (j = 0; j < NELEM(blinkrates)-1; j++)
3431 if (blinkrates[j].rate == sc->sc_rxrate)
3438 /* XXX beware of overflow */
3439 iwi_led_blink(sc, (blinkrates[j].timeOn * hz) / 1000,
3440 (blinkrates[j].timeOff * hz) / 1000);
3444 iwi_sysctl_softled(SYSCTL_HANDLER_ARGS)
3446 struct iwi_softc *sc = arg1;
3447 int softled = sc->sc_softled;
3450 error = sysctl_handle_int(oidp, &softled, 0, req);
3451 if (error || !req->newptr)
3453 softled = (softled != 0);
3454 if (softled != sc->sc_softled) {
3456 uint32_t v = iwi_read_event(sc);
3457 v &= ~sc->sc_ledpin;
3458 iwi_write_event(sc, iwi_toggle_event(v));
3460 sc->sc_softled = softled;
3466 iwi_ledattach(struct iwi_softc *sc)
3468 struct sysctl_ctx_list *ctx = &sc->sc_sysctl_ctx;
3469 struct sysctl_oid *tree = sc->sc_sysctl_tree;
3471 sc->sc_blinking = 0;
3472 sc->sc_ledstate = 1;
3473 sc->sc_ledidle = (2700*hz)/1000; /* 2.7sec */
3474 callout_init(&sc->sc_ledtimer_callout);
3476 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
3477 "softled", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
3478 iwi_sysctl_softled, "I", "enable/disable software LED support");
3479 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
3480 "ledpin", CTLFLAG_RW, &sc->sc_ledpin, 0,
3481 "pin setting to turn activity LED on");
3482 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
3483 "ledidle", CTLFLAG_RW, &sc->sc_ledidle, 0,
3484 "idle time for inactivity LED (ticks)");
3485 /* XXX for debugging */
3486 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
3487 "nictype", CTLFLAG_RD, &sc->sc_nictype, 0,
3488 "NIC type from EEPROM");
3490 sc->sc_ledpin = IWI_RST_LED_ACTIVITY;
3493 sc->sc_nictype = (iwi_read_prom_word(sc, IWI_EEPROM_NIC) >> 8) & 0xff;
3494 if (sc->sc_nictype == 1) {
3496 * NB: led's are reversed.
3498 sc->sc_ledpin = IWI_RST_LED_ASSOCIATED;
3503 iwi_scan_start(struct ieee80211com *ic)
3509 iwi_set_channel(struct ieee80211com *ic)
3511 struct ifnet *ifp = ic->ic_ifp;
3512 struct iwi_softc *sc = ifp->if_softc;
3513 if (sc->fw_state == IWI_FW_IDLE)
3514 iwi_setcurchan(sc, ic->ic_curchan->ic_ieee);
3518 iwi_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)
3520 struct ieee80211vap *vap = ss->ss_vap;
3521 struct ifnet *ifp = vap->iv_ic->ic_ifp;
3522 struct iwi_softc *sc = ifp->if_softc;
3524 if (iwi_scanchan(sc, maxdwell, 0))
3525 ieee80211_cancel_scan(vap);
3529 iwi_scan_mindwell(struct ieee80211_scan_state *ss)
3531 /* NB: don't try to abort scan; wait for firmware to finish */
3535 iwi_scan_end(struct ieee80211com *ic)
3537 struct ifnet *ifp = ic->ic_ifp;
3538 struct iwi_softc *sc = ifp->if_softc;
3540 sc->flags &= ~IWI_FLAG_CHANNEL_SCAN;
3541 /* NB: make sure we're still scanning */
3542 if (sc->fw_state == IWI_FW_SCANNING)
3543 iwi_cmd(sc, IWI_CMD_ABORT_SCAN, NULL, 0);