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 *);
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,
663 if (ring->data == NULL) {
664 device_printf(sc->sc_dev, "could not allocate soft data\n");
669 error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT,
670 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, IWI_MAX_NSEG,
671 MCLBYTES, 0, &ring->data_dmat);
673 device_printf(sc->sc_dev, "could not create data DMA tag\n");
677 for (i = 0; i < count; i++) {
678 error = bus_dmamap_create(ring->data_dmat, 0,
681 device_printf(sc->sc_dev, "could not create DMA map\n");
688 fail: iwi_free_tx_ring(sc, ring);
693 iwi_reset_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring)
695 struct iwi_tx_data *data;
698 for (i = 0; i < ring->count; i++) {
699 data = &ring->data[i];
701 if (data->m != NULL) {
702 bus_dmamap_sync(ring->data_dmat, data->map,
703 BUS_DMASYNC_POSTWRITE);
704 bus_dmamap_unload(ring->data_dmat, data->map);
709 if (data->ni != NULL) {
710 ieee80211_free_node(data->ni);
716 ring->cur = ring->next = 0;
720 iwi_free_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring)
722 struct iwi_tx_data *data;
725 if (ring->desc != NULL) {
726 bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
727 BUS_DMASYNC_POSTWRITE);
728 bus_dmamap_unload(ring->desc_dmat, ring->desc_map);
729 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map);
732 if (ring->desc_dmat != NULL)
733 bus_dma_tag_destroy(ring->desc_dmat);
735 if (ring->data != NULL) {
736 for (i = 0; i < ring->count; i++) {
737 data = &ring->data[i];
739 if (data->m != NULL) {
740 bus_dmamap_sync(ring->data_dmat, data->map,
741 BUS_DMASYNC_POSTWRITE);
742 bus_dmamap_unload(ring->data_dmat, data->map);
746 if (data->ni != NULL)
747 ieee80211_free_node(data->ni);
749 if (data->map != NULL)
750 bus_dmamap_destroy(ring->data_dmat, data->map);
753 kfree(ring->data, M_DEVBUF);
756 if (ring->data_dmat != NULL)
757 bus_dma_tag_destroy(ring->data_dmat);
761 iwi_alloc_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring, int count)
763 struct iwi_rx_data *data;
769 ring->data = kmalloc(count * sizeof (struct iwi_rx_data), M_DEVBUF,
771 if (ring->data == NULL) {
772 device_printf(sc->sc_dev, "could not allocate soft data\n");
777 error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT,
778 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1, MCLBYTES,
779 0, &ring->data_dmat);
781 device_printf(sc->sc_dev, "could not create data DMA tag\n");
785 for (i = 0; i < count; i++) {
786 data = &ring->data[i];
788 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
790 device_printf(sc->sc_dev, "could not create DMA map\n");
794 data->m = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
795 if (data->m == NULL) {
796 device_printf(sc->sc_dev,
797 "could not allocate rx mbuf\n");
802 error = bus_dmamap_load(ring->data_dmat, data->map,
803 mtod(data->m, void *), MCLBYTES, iwi_dma_map_addr,
806 device_printf(sc->sc_dev,
807 "could not load rx buf DMA map");
811 data->reg = IWI_CSR_RX_BASE + i * 4;
816 fail: iwi_free_rx_ring(sc, ring);
821 iwi_reset_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring)
827 iwi_free_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring)
829 struct iwi_rx_data *data;
832 if (ring->data != NULL) {
833 for (i = 0; i < ring->count; i++) {
834 data = &ring->data[i];
836 if (data->m != NULL) {
837 bus_dmamap_sync(ring->data_dmat, data->map,
838 BUS_DMASYNC_POSTREAD);
839 bus_dmamap_unload(ring->data_dmat, data->map);
843 if (data->map != NULL)
844 bus_dmamap_destroy(ring->data_dmat, data->map);
847 kfree(ring->data, M_DEVBUF);
850 if (ring->data_dmat != NULL)
851 bus_dma_tag_destroy(ring->data_dmat);
855 iwi_shutdown(device_t dev)
857 struct iwi_softc *sc = device_get_softc(dev);
859 wlan_serialize_enter();
861 iwi_put_firmware(sc); /* ??? XXX */
862 wlan_serialize_exit();
868 iwi_suspend(device_t dev)
870 struct iwi_softc *sc = device_get_softc(dev);
872 wlan_serialize_enter();
874 wlan_serialize_exit();
880 iwi_resume(device_t dev)
882 struct iwi_softc *sc = device_get_softc(dev);
883 struct ifnet *ifp = sc->sc_ifp;
885 wlan_serialize_enter();
886 pci_write_config(dev, 0x41, 0, 1);
888 if (ifp->if_flags & IFF_UP)
891 wlan_serialize_exit();
895 static struct ieee80211_node *
896 iwi_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN])
900 in = kmalloc(sizeof (struct iwi_node), M_80211_NODE, M_NOWAIT | M_ZERO);
903 /* XXX assign sta table entry for adhoc */
910 iwi_node_free(struct ieee80211_node *ni)
912 struct ieee80211com *ic = ni->ni_ic;
913 struct iwi_softc *sc = ic->ic_ifp->if_softc;
914 struct iwi_node *in = (struct iwi_node *)ni;
916 if (in->in_station != -1) {
917 DPRINTF(("%s mac %6D station %u\n", __func__,
918 ni->ni_macaddr, ":", in->in_station));
919 devfs_clone_bitmap_put(&sc->sc_unr, in->in_station);
922 sc->sc_node_free(ni);
926 * Convert h/w rate code to IEEE rate code.
929 iwi_cvtrate(int iwirate)
932 case IWI_RATE_DS1: return 2;
933 case IWI_RATE_DS2: return 4;
934 case IWI_RATE_DS5: return 11;
935 case IWI_RATE_DS11: return 22;
936 case IWI_RATE_OFDM6: return 12;
937 case IWI_RATE_OFDM9: return 18;
938 case IWI_RATE_OFDM12: return 24;
939 case IWI_RATE_OFDM18: return 36;
940 case IWI_RATE_OFDM24: return 48;
941 case IWI_RATE_OFDM36: return 72;
942 case IWI_RATE_OFDM48: return 96;
943 case IWI_RATE_OFDM54: return 108;
949 * The firmware automatically adapts the transmit speed. We report its current
953 iwi_media_status(struct ifnet *ifp, struct ifmediareq *imr)
955 struct ieee80211vap *vap = ifp->if_softc;
956 struct ieee80211com *ic = vap->iv_ic;
957 struct iwi_softc *sc = ic->ic_ifp->if_softc;
959 /* read current transmission rate from adapter */
960 vap->iv_bss->ni_txrate =
961 iwi_cvtrate(CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE));
962 ieee80211_media_status(ifp, imr);
966 iwi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
968 struct iwi_vap *ivp = IWI_VAP(vap);
969 struct ieee80211com *ic = vap->iv_ic;
970 struct ifnet *ifp = ic->ic_ifp;
971 struct iwi_softc *sc = ifp->if_softc;
973 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__,
974 ieee80211_state_name[vap->iv_state],
975 ieee80211_state_name[nstate], sc->flags));
978 case IEEE80211_S_INIT:
980 * NB: don't try to do this if iwi_stop_master has
981 * shutdown the firmware and disabled interrupts.
983 if (vap->iv_state == IEEE80211_S_RUN &&
984 (sc->flags & IWI_FLAG_FW_INITED))
985 iwi_disassociate(sc, 0);
987 case IEEE80211_S_AUTH:
988 iwi_auth_and_assoc(sc, vap);
990 case IEEE80211_S_RUN:
991 if (vap->iv_opmode == IEEE80211_M_IBSS &&
992 vap->iv_state == IEEE80211_S_SCAN) {
994 * XXX when joining an ibss network we are called
995 * with a SCAN -> RUN transition on scan complete.
996 * Use that to call iwi_auth_and_assoc. On completing
997 * the join we are then called again with an
998 * AUTH -> RUN transition and we want to do nothing.
999 * This is all totally bogus and needs to be redone.
1001 iwi_auth_and_assoc(sc, vap);
1004 case IEEE80211_S_ASSOC:
1006 * If we are transitioning from AUTH then just wait
1007 * for the ASSOC status to come back from the firmware.
1008 * Otherwise we need to issue the association request.
1010 if (vap->iv_state == IEEE80211_S_AUTH)
1012 iwi_auth_and_assoc(sc, vap);
1018 return ivp->iwi_newstate(vap, nstate, arg);
1022 * WME parameters coming from IEEE 802.11e specification. These values are
1023 * already declared in ieee80211_proto.c, but they are static so they can't
1026 static const struct wmeParams iwi_wme_cck_params[WME_NUM_AC] = {
1027 { 0, 3, 5, 7, 0 }, /* WME_AC_BE */
1028 { 0, 3, 5, 10, 0 }, /* WME_AC_BK */
1029 { 0, 2, 4, 5, 188 }, /* WME_AC_VI */
1030 { 0, 2, 3, 4, 102 } /* WME_AC_VO */
1033 static const struct wmeParams iwi_wme_ofdm_params[WME_NUM_AC] = {
1034 { 0, 3, 4, 6, 0 }, /* WME_AC_BE */
1035 { 0, 3, 4, 10, 0 }, /* WME_AC_BK */
1036 { 0, 2, 3, 4, 94 }, /* WME_AC_VI */
1037 { 0, 2, 2, 3, 47 } /* WME_AC_VO */
1039 #define IWI_EXP2(v) htole16((1 << (v)) - 1)
1040 #define IWI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v))
1043 iwi_wme_init(struct iwi_softc *sc)
1045 const struct wmeParams *wmep;
1048 memset(sc->wme, 0, sizeof sc->wme);
1049 for (ac = 0; ac < WME_NUM_AC; ac++) {
1050 /* set WME values for CCK modulation */
1051 wmep = &iwi_wme_cck_params[ac];
1052 sc->wme[1].aifsn[ac] = wmep->wmep_aifsn;
1053 sc->wme[1].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin);
1054 sc->wme[1].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax);
1055 sc->wme[1].burst[ac] = IWI_USEC(wmep->wmep_txopLimit);
1056 sc->wme[1].acm[ac] = wmep->wmep_acm;
1058 /* set WME values for OFDM modulation */
1059 wmep = &iwi_wme_ofdm_params[ac];
1060 sc->wme[2].aifsn[ac] = wmep->wmep_aifsn;
1061 sc->wme[2].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin);
1062 sc->wme[2].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax);
1063 sc->wme[2].burst[ac] = IWI_USEC(wmep->wmep_txopLimit);
1064 sc->wme[2].acm[ac] = wmep->wmep_acm;
1069 iwi_wme_setparams(struct iwi_softc *sc, struct ieee80211com *ic)
1071 const struct wmeParams *wmep;
1074 for (ac = 0; ac < WME_NUM_AC; ac++) {
1075 /* set WME values for current operating mode */
1076 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac];
1077 sc->wme[0].aifsn[ac] = wmep->wmep_aifsn;
1078 sc->wme[0].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin);
1079 sc->wme[0].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax);
1080 sc->wme[0].burst[ac] = IWI_USEC(wmep->wmep_txopLimit);
1081 sc->wme[0].acm[ac] = wmep->wmep_acm;
1084 DPRINTF(("Setting WME parameters\n"));
1085 return iwi_cmd(sc, IWI_CMD_SET_WME_PARAMS, sc->wme, sizeof sc->wme);
1091 iwi_update_wme_task(void *arg, int npending)
1093 struct ieee80211com *ic = arg;
1094 struct iwi_softc *sc = ic->ic_ifp->if_softc;
1096 wlan_serialize_enter();
1097 (void) iwi_wme_setparams(sc, ic);
1098 wlan_serialize_exit();
1102 iwi_wme_update(struct ieee80211com *ic)
1104 struct iwi_softc *sc = ic->ic_ifp->if_softc;
1105 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1108 * We may be called to update the WME parameters in
1109 * the adapter at various places. If we're already
1110 * associated then initiate the request immediately;
1111 * otherwise we assume the params will get sent down
1112 * to the adapter as part of the work iwi_auth_and_assoc
1115 if (vap->iv_state == IEEE80211_S_RUN)
1116 ieee80211_runtask(ic, &sc->sc_wmetask);
1121 iwi_wme_setie(struct iwi_softc *sc)
1123 struct ieee80211_wme_info wme;
1125 memset(&wme, 0, sizeof wme);
1126 wme.wme_id = IEEE80211_ELEMID_VENDOR;
1127 wme.wme_len = sizeof (struct ieee80211_wme_info) - 2;
1128 wme.wme_oui[0] = 0x00;
1129 wme.wme_oui[1] = 0x50;
1130 wme.wme_oui[2] = 0xf2;
1131 wme.wme_type = WME_OUI_TYPE;
1132 wme.wme_subtype = WME_INFO_OUI_SUBTYPE;
1133 wme.wme_version = WME_VERSION;
1136 DPRINTF(("Setting WME IE (len=%u)\n", wme.wme_len));
1137 return iwi_cmd(sc, IWI_CMD_SET_WMEIE, &wme, sizeof wme);
1141 * Read 16 bits at address 'addr' from the serial EEPROM.
1144 iwi_read_prom_word(struct iwi_softc *sc, uint8_t addr)
1150 /* clock C once before the first command */
1151 IWI_EEPROM_CTL(sc, 0);
1152 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1153 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C);
1154 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1156 /* write start bit (1) */
1157 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D);
1158 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C);
1160 /* write READ opcode (10) */
1161 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D);
1162 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C);
1163 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1164 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C);
1166 /* write address A7-A0 */
1167 for (n = 7; n >= 0; n--) {
1168 IWI_EEPROM_CTL(sc, IWI_EEPROM_S |
1169 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D));
1170 IWI_EEPROM_CTL(sc, IWI_EEPROM_S |
1171 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D) | IWI_EEPROM_C);
1174 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1176 /* read data Q15-Q0 */
1178 for (n = 15; n >= 0; n--) {
1179 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C);
1180 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1181 tmp = MEM_READ_4(sc, IWI_MEM_EEPROM_CTL);
1182 val |= ((tmp & IWI_EEPROM_Q) >> IWI_EEPROM_SHIFT_Q) << n;
1185 IWI_EEPROM_CTL(sc, 0);
1187 /* clear Chip Select and clock C */
1188 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1189 IWI_EEPROM_CTL(sc, 0);
1190 IWI_EEPROM_CTL(sc, IWI_EEPROM_C);
1196 iwi_setcurchan(struct iwi_softc *sc, int chan)
1198 struct ifnet *ifp = sc->sc_ifp;
1199 struct ieee80211com *ic = ifp->if_l2com;
1202 ieee80211_radiotap_chan_change(ic);
1206 iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i,
1207 struct iwi_frame *frame)
1209 struct ifnet *ifp = sc->sc_ifp;
1210 struct ieee80211com *ic = ifp->if_l2com;
1211 struct mbuf *mnew, *m;
1212 struct ieee80211_node *ni;
1213 int type, error, framelen;
1216 framelen = le16toh(frame->len);
1217 if (framelen < IEEE80211_MIN_LEN || framelen > MCLBYTES) {
1219 * XXX >MCLBYTES is bogus as it means the h/w dma'd
1220 * out of bounds; need to figure out how to limit
1221 * frame size in the firmware
1225 ("drop rx frame len=%u chan=%u rssi=%u rssi_dbm=%u\n",
1226 le16toh(frame->len), frame->chan, frame->rssi,
1231 DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u rssi_dbm=%u\n",
1232 le16toh(frame->len), frame->chan, frame->rssi, frame->rssi_dbm));
1234 if (frame->chan != sc->curchan)
1235 iwi_setcurchan(sc, frame->chan);
1238 * Try to allocate a new mbuf for this ring element and load it before
1239 * processing the current mbuf. If the ring element cannot be loaded,
1240 * drop the received packet and reuse the old mbuf. In the unlikely
1241 * case that the old mbuf can't be reloaded either, explicitly panic.
1243 mnew = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
1249 bus_dmamap_unload(sc->rxq.data_dmat, data->map);
1251 error = bus_dmamap_load(sc->rxq.data_dmat, data->map,
1252 mtod(mnew, void *), MCLBYTES, iwi_dma_map_addr, &data->physaddr,
1257 /* try to reload the old mbuf */
1258 error = bus_dmamap_load(sc->rxq.data_dmat, data->map,
1259 mtod(data->m, void *), MCLBYTES, iwi_dma_map_addr,
1260 &data->physaddr, 0);
1262 /* very unlikely that it will fail... */
1263 panic("%s: could not load old rx mbuf",
1264 device_get_name(sc->sc_dev));
1271 * New mbuf successfully loaded, update Rx ring and continue
1276 CSR_WRITE_4(sc, data->reg, data->physaddr);
1279 m->m_pkthdr.rcvif = ifp;
1280 m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) +
1281 sizeof (struct iwi_frame) + framelen;
1283 m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame));
1285 rssi = frame->rssi_dbm;
1287 if (ieee80211_radiotap_active(ic)) {
1288 struct iwi_rx_radiotap_header *tap = &sc->sc_rxtap;
1291 tap->wr_antsignal = rssi;
1292 tap->wr_antnoise = nf;
1293 tap->wr_rate = iwi_cvtrate(frame->rate);
1294 tap->wr_antenna = frame->antenna;
1297 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *));
1299 type = ieee80211_input(ni, m, rssi, nf);
1300 ieee80211_free_node(ni);
1302 type = ieee80211_input_all(ic, m, rssi, nf);
1304 if (sc->sc_softled) {
1306 * Blink for any data frame. Otherwise do a
1307 * heartbeat-style blink when idle. The latter
1308 * is mainly for station mode where we depend on
1309 * periodic beacon frames to trigger the poll event.
1311 if (type == IEEE80211_FC0_TYPE_DATA) {
1312 sc->sc_rxrate = frame->rate;
1313 iwi_led_event(sc, IWI_LED_RX);
1314 } else if (ticks - sc->sc_ledevent >= sc->sc_ledidle)
1315 iwi_led_event(sc, IWI_LED_POLL);
1320 * Check for an association response frame to see if QoS
1321 * has been negotiated. We parse just enough to figure
1322 * out if we're supposed to use QoS. The proper solution
1323 * is to pass the frame up so ieee80211_input can do the
1324 * work but that's made hard by how things currently are
1325 * done in the driver.
1328 iwi_checkforqos(struct ieee80211vap *vap,
1329 const struct ieee80211_frame *wh, int len)
1331 #define SUBTYPE(wh) ((wh)->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK)
1332 const uint8_t *frm, *efrm, *wme;
1333 struct ieee80211_node *ni;
1334 uint16_t capinfo, status, associd;
1336 /* NB: +8 for capinfo, status, associd, and first ie */
1337 if (!(sizeof(*wh)+8 < len && len < IEEE80211_MAX_LEN) ||
1338 SUBTYPE(wh) != IEEE80211_FC0_SUBTYPE_ASSOC_RESP)
1341 * asresp frame format
1342 * [2] capability information
1344 * [2] association ID
1345 * [tlv] supported rates
1346 * [tlv] extended supported rates
1349 frm = (const uint8_t *)&wh[1];
1350 efrm = ((const uint8_t *) wh) + len;
1352 capinfo = le16toh(*(const uint16_t *)frm);
1354 status = le16toh(*(const uint16_t *)frm);
1356 associd = le16toh(*(const uint16_t *)frm);
1360 while (frm < efrm) {
1361 IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1], return);
1363 case IEEE80211_ELEMID_VENDOR:
1372 ni->ni_capinfo = capinfo;
1373 ni->ni_associd = associd;
1375 ni->ni_flags |= IEEE80211_NODE_QOS;
1377 ni->ni_flags &= ~IEEE80211_NODE_QOS;
1382 * Task queue callbacks for iwi_notification_intr used to avoid LOR's.
1386 iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif)
1388 struct ifnet *ifp = sc->sc_ifp;
1389 struct ieee80211com *ic = ifp->if_l2com;
1390 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1391 struct iwi_notif_scan_channel *chan;
1392 struct iwi_notif_scan_complete *scan;
1393 struct iwi_notif_authentication *auth;
1394 struct iwi_notif_association *assoc;
1395 struct iwi_notif_beacon_state *beacon;
1397 switch (notif->type) {
1398 case IWI_NOTIF_TYPE_SCAN_CHANNEL:
1399 chan = (struct iwi_notif_scan_channel *)(notif + 1);
1401 DPRINTFN(3, ("Scan of channel %u complete (%u)\n",
1402 ieee80211_ieee2mhz(chan->nchan, 0), chan->nchan));
1404 /* Reset the timer, the scan is still going */
1405 sc->sc_state_timer = 3;
1408 case IWI_NOTIF_TYPE_SCAN_COMPLETE:
1409 scan = (struct iwi_notif_scan_complete *)(notif + 1);
1411 DPRINTFN(2, ("Scan completed (%u, %u)\n", scan->nchan,
1414 IWI_STATE_END(sc, IWI_FW_SCANNING);
1416 if (scan->status == IWI_SCAN_COMPLETED) {
1417 /* NB: don't need to defer, net80211 does it for us */
1418 ieee80211_scan_next(vap);
1422 case IWI_NOTIF_TYPE_AUTHENTICATION:
1423 auth = (struct iwi_notif_authentication *)(notif + 1);
1424 switch (auth->state) {
1425 case IWI_AUTH_SUCCESS:
1426 DPRINTFN(2, ("Authentication succeeeded\n"));
1427 ieee80211_new_state(vap, IEEE80211_S_ASSOC, -1);
1431 * These are delivered as an unsolicited deauth
1432 * (e.g. due to inactivity) or in response to an
1433 * associate request.
1435 sc->flags &= ~IWI_FLAG_ASSOCIATED;
1436 if (vap->iv_state != IEEE80211_S_RUN) {
1437 DPRINTFN(2, ("Authentication failed\n"));
1438 vap->iv_stats.is_rx_auth_fail++;
1439 IWI_STATE_END(sc, IWI_FW_ASSOCIATING);
1441 DPRINTFN(2, ("Deauthenticated\n"));
1442 vap->iv_stats.is_rx_deauth++;
1444 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1);
1446 case IWI_AUTH_SENT_1:
1447 case IWI_AUTH_RECV_2:
1448 case IWI_AUTH_SEQ1_PASS:
1450 case IWI_AUTH_SEQ1_FAIL:
1451 DPRINTFN(2, ("Initial authentication handshake failed; "
1452 "you probably need shared key\n"));
1453 vap->iv_stats.is_rx_auth_fail++;
1454 IWI_STATE_END(sc, IWI_FW_ASSOCIATING);
1455 /* XXX retry shared key when in auto */
1458 device_printf(sc->sc_dev,
1459 "unknown authentication state %u\n", auth->state);
1464 case IWI_NOTIF_TYPE_ASSOCIATION:
1465 assoc = (struct iwi_notif_association *)(notif + 1);
1466 switch (assoc->state) {
1467 case IWI_AUTH_SUCCESS:
1468 /* re-association, do nothing */
1470 case IWI_ASSOC_SUCCESS:
1471 DPRINTFN(2, ("Association succeeded\n"));
1472 sc->flags |= IWI_FLAG_ASSOCIATED;
1473 IWI_STATE_END(sc, IWI_FW_ASSOCIATING);
1474 iwi_checkforqos(vap,
1475 (const struct ieee80211_frame *)(assoc+1),
1476 le16toh(notif->len) - sizeof(*assoc));
1477 ieee80211_new_state(vap, IEEE80211_S_RUN, -1);
1479 case IWI_ASSOC_INIT:
1480 sc->flags &= ~IWI_FLAG_ASSOCIATED;
1481 switch (sc->fw_state) {
1482 case IWI_FW_ASSOCIATING:
1483 DPRINTFN(2, ("Association failed\n"));
1484 IWI_STATE_END(sc, IWI_FW_ASSOCIATING);
1485 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1);
1488 case IWI_FW_DISASSOCIATING:
1489 DPRINTFN(2, ("Dissassociated\n"));
1490 IWI_STATE_END(sc, IWI_FW_DISASSOCIATING);
1491 vap->iv_stats.is_rx_disassoc++;
1492 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1);
1497 device_printf(sc->sc_dev,
1498 "unknown association state %u\n", assoc->state);
1503 case IWI_NOTIF_TYPE_BEACON:
1504 /* XXX check struct length */
1505 beacon = (struct iwi_notif_beacon_state *)(notif + 1);
1507 DPRINTFN(5, ("Beacon state (%u, %u)\n",
1508 beacon->state, le32toh(beacon->number)));
1510 if (beacon->state == IWI_BEACON_MISS) {
1512 * The firmware notifies us of every beacon miss
1513 * so we need to track the count against the
1514 * configured threshold before notifying the
1516 * XXX try to roam, drop assoc only on much higher count
1518 if (le32toh(beacon->number) >= vap->iv_bmissthreshold) {
1519 DPRINTF(("Beacon miss: %u >= %u\n",
1520 le32toh(beacon->number),
1521 vap->iv_bmissthreshold));
1522 vap->iv_stats.is_beacon_miss++;
1524 * It's pointless to notify the 802.11 layer
1525 * as it'll try to send a probe request (which
1526 * we'll discard) and then timeout and drop us
1527 * into scan state. Instead tell the firmware
1528 * to disassociate and then on completion we'll
1529 * kick the state machine to scan.
1531 ieee80211_runtask(ic, &sc->sc_disassoctask);
1536 case IWI_NOTIF_TYPE_CALIBRATION:
1537 case IWI_NOTIF_TYPE_NOISE:
1538 case IWI_NOTIF_TYPE_LINK_QUALITY:
1539 DPRINTFN(5, ("Notification (%u)\n", notif->type));
1543 DPRINTF(("unknown notification type %u flags 0x%x len %u\n",
1544 notif->type, notif->flags, le16toh(notif->len)));
1550 iwi_rx_intr(struct iwi_softc *sc)
1552 struct iwi_rx_data *data;
1553 struct iwi_hdr *hdr;
1556 hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX);
1558 for (; sc->rxq.cur != hw;) {
1559 data = &sc->rxq.data[sc->rxq.cur];
1561 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
1562 BUS_DMASYNC_POSTREAD);
1564 hdr = mtod(data->m, struct iwi_hdr *);
1566 switch (hdr->type) {
1567 case IWI_HDR_TYPE_FRAME:
1568 iwi_frame_intr(sc, data, sc->rxq.cur,
1569 (struct iwi_frame *)(hdr + 1));
1572 case IWI_HDR_TYPE_NOTIF:
1573 iwi_notification_intr(sc,
1574 (struct iwi_notif *)(hdr + 1));
1578 device_printf(sc->sc_dev, "unknown hdr type %u\n",
1582 DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur));
1584 sc->rxq.cur = (sc->rxq.cur + 1) % IWI_RX_RING_COUNT;
1587 /* tell the firmware what we have processed */
1588 hw = (hw == 0) ? IWI_RX_RING_COUNT - 1 : hw - 1;
1589 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw);
1593 iwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq)
1595 struct ifnet *ifp = sc->sc_ifp;
1596 struct iwi_tx_data *data;
1599 hw = CSR_READ_4(sc, txq->csr_ridx);
1601 for (; txq->next != hw;) {
1602 data = &txq->data[txq->next];
1604 bus_dmamap_sync(txq->data_dmat, data->map,
1605 BUS_DMASYNC_POSTWRITE);
1606 bus_dmamap_unload(txq->data_dmat, data->map);
1607 if (data->m->m_flags & M_TXCB)
1608 ieee80211_process_callback(data->ni, data->m, 0/*XXX*/);
1611 ieee80211_free_node(data->ni);
1614 DPRINTFN(15, ("tx done idx=%u\n", txq->next));
1619 txq->next = (txq->next + 1) % IWI_TX_RING_COUNT;
1622 sc->sc_tx_timer = 0;
1623 ifp->if_flags &= ~IFF_OACTIVE;
1626 iwi_led_event(sc, IWI_LED_TX);
1628 iwi_start_locked(ifp);
1632 iwi_fatal_error_intr(struct iwi_softc *sc)
1634 struct ifnet *ifp = sc->sc_ifp;
1635 struct ieee80211com *ic = ifp->if_l2com;
1636 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1638 device_printf(sc->sc_dev, "firmware error\n");
1640 ieee80211_cancel_scan(vap);
1641 ieee80211_runtask(ic, &sc->sc_restarttask);
1643 sc->flags &= ~IWI_FLAG_BUSY;
1644 sc->sc_busy_timer = 0;
1649 iwi_radio_off_intr(struct iwi_softc *sc)
1651 struct ifnet *ifp = sc->sc_ifp;
1652 struct ieee80211com *ic = ifp->if_l2com;
1654 ieee80211_runtask(ic, &sc->sc_radiofftask);
1660 struct iwi_softc *sc = arg;
1663 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) {
1667 /* acknowledge interrupts */
1668 CSR_WRITE_4(sc, IWI_CSR_INTR, r);
1670 if (r & IWI_INTR_FATAL_ERROR) {
1671 iwi_fatal_error_intr(sc);
1675 if (r & IWI_INTR_FW_INITED) {
1676 if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR)))
1680 if (r & IWI_INTR_RADIO_OFF)
1681 iwi_radio_off_intr(sc);
1683 if (r & IWI_INTR_CMD_DONE) {
1684 sc->flags &= ~IWI_FLAG_BUSY;
1685 sc->sc_busy_timer = 0;
1689 if (r & IWI_INTR_TX1_DONE)
1690 iwi_tx_intr(sc, &sc->txq[0]);
1692 if (r & IWI_INTR_TX2_DONE)
1693 iwi_tx_intr(sc, &sc->txq[1]);
1695 if (r & IWI_INTR_TX3_DONE)
1696 iwi_tx_intr(sc, &sc->txq[2]);
1698 if (r & IWI_INTR_TX4_DONE)
1699 iwi_tx_intr(sc, &sc->txq[3]);
1701 if (r & IWI_INTR_RX_DONE)
1704 if (r & IWI_INTR_PARITY_ERROR) {
1705 /* XXX rate-limit */
1706 device_printf(sc->sc_dev, "parity error\n");
1711 iwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len)
1713 struct iwi_cmd_desc *desc;
1715 if (sc->flags & IWI_FLAG_BUSY) {
1716 device_printf(sc->sc_dev, "%s: cmd %d not sent, busy\n",
1721 sc->flags |= IWI_FLAG_BUSY;
1722 sc->sc_busy_timer = 2;
1724 desc = &sc->cmdq.desc[sc->cmdq.cur];
1726 desc->hdr.type = IWI_HDR_TYPE_COMMAND;
1727 desc->hdr.flags = IWI_HDR_FLAG_IRQ;
1730 memcpy(desc->data, data, len);
1732 bus_dmamap_sync(sc->cmdq.desc_dmat, sc->cmdq.desc_map,
1733 BUS_DMASYNC_PREWRITE);
1735 DPRINTFN(2, ("sending command idx=%u type=%u len=%u\n", sc->cmdq.cur,
1738 sc->cmdq.cur = (sc->cmdq.cur + 1) % IWI_CMD_RING_COUNT;
1739 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur);
1741 return zsleep(sc, &wlan_global_serializer, 0, "iwicmd", hz);
1745 iwi_write_ibssnode(struct iwi_softc *sc,
1746 const u_int8_t addr[IEEE80211_ADDR_LEN], int entry)
1748 struct iwi_ibssnode node;
1750 /* write node information into NIC memory */
1751 memset(&node, 0, sizeof node);
1752 IEEE80211_ADDR_COPY(node.bssid, addr);
1754 DPRINTF(("%s mac %6D station %u\n", __func__, node.bssid, ":", entry));
1756 CSR_WRITE_REGION_1(sc,
1757 IWI_CSR_NODE_BASE + entry * sizeof node,
1758 (uint8_t *)&node, sizeof node);
1762 iwi_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni,
1765 struct iwi_softc *sc = ifp->if_softc;
1766 struct ieee80211vap *vap = ni->ni_vap;
1767 struct ieee80211com *ic = ni->ni_ic;
1768 struct iwi_node *in = (struct iwi_node *)ni;
1769 const struct ieee80211_frame *wh;
1770 struct ieee80211_key *k;
1771 const struct chanAccParams *cap;
1772 struct iwi_tx_ring *txq = &sc->txq[ac];
1773 struct iwi_tx_data *data;
1774 struct iwi_tx_desc *desc;
1776 bus_dma_segment_t segs[IWI_MAX_NSEG];
1777 int error, nsegs, hdrlen, i;
1778 int ismcast, flags, xflags, staid;
1780 wh = mtod(m0, const struct ieee80211_frame *);
1781 /* NB: only data frames use this path */
1782 hdrlen = ieee80211_hdrsize(wh);
1783 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1);
1787 flags |= IWI_DATA_FLAG_NEED_ACK;
1788 if (vap->iv_flags & IEEE80211_F_SHPREAMBLE)
1789 flags |= IWI_DATA_FLAG_SHPREAMBLE;
1790 if (IEEE80211_QOS_HAS_SEQ(wh)) {
1791 xflags |= IWI_DATA_XFLAG_QOS;
1792 cap = &ic->ic_wme.wme_chanParams;
1793 if (!cap->cap_wmeParams[ac].wmep_noackPolicy)
1794 flags &= ~IWI_DATA_FLAG_NEED_ACK;
1798 * This is only used in IBSS mode where the firmware expect an index
1799 * in a h/w table instead of a destination address.
1801 if (vap->iv_opmode == IEEE80211_M_IBSS) {
1803 if (in->in_station == -1) {
1804 in->in_station = devfs_clone_bitmap_get(&sc->sc_unr,
1805 IWI_MAX_IBSSNODE-1);
1806 if (in->in_station == -1) {
1807 /* h/w table is full */
1809 ieee80211_free_node(ni);
1813 iwi_write_ibssnode(sc,
1814 ni->ni_macaddr, in->in_station);
1816 staid = in->in_station;
1819 * Multicast addresses have no associated node
1820 * so there will be no station entry. We reserve
1821 * entry 0 for one mcast address and use that.
1822 * If there are many being used this will be
1823 * expensive and we'll need to do a better job
1824 * but for now this handles the broadcast case.
1826 if (!IEEE80211_ADDR_EQ(wh->i_addr1, sc->sc_mcast)) {
1827 IEEE80211_ADDR_COPY(sc->sc_mcast, wh->i_addr1);
1828 iwi_write_ibssnode(sc, sc->sc_mcast, 0);
1835 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1836 k = ieee80211_crypto_encap(ni, m0);
1842 /* packet header may have moved, reset our local pointer */
1843 wh = mtod(m0, struct ieee80211_frame *);
1846 if (ieee80211_radiotap_active_vap(vap)) {
1847 struct iwi_tx_radiotap_header *tap = &sc->sc_txtap;
1851 ieee80211_radiotap_tx(vap, m0);
1854 data = &txq->data[txq->cur];
1855 desc = &txq->desc[txq->cur];
1857 /* save and trim IEEE802.11 header */
1858 m_copydata(m0, 0, hdrlen, (caddr_t)&desc->wh);
1861 error = bus_dmamap_load_mbuf_segment(txq->data_dmat, data->map,
1862 m0, segs, 1, &nsegs, BUS_DMA_NOWAIT);
1863 if (error != 0 && error != EFBIG) {
1864 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1870 mnew = m_defrag(m0, MB_DONTWAIT);
1872 device_printf(sc->sc_dev,
1873 "could not defragment mbuf\n");
1879 error = bus_dmamap_load_mbuf_segment(txq->data_dmat,
1880 data->map, m0, segs, 1, &nsegs, BUS_DMA_NOWAIT);
1882 device_printf(sc->sc_dev,
1883 "could not map mbuf (error %d)\n", error);
1892 desc->hdr.type = IWI_HDR_TYPE_DATA;
1893 desc->hdr.flags = IWI_HDR_FLAG_IRQ;
1894 desc->station = staid;
1895 desc->cmd = IWI_DATA_CMD_TX;
1896 desc->len = htole16(m0->m_pkthdr.len);
1897 desc->flags = flags;
1898 desc->xflags = xflags;
1901 if (vap->iv_flags & IEEE80211_F_PRIVACY)
1902 desc->wep_txkey = vap->iv_def_txkey;
1905 desc->flags |= IWI_DATA_FLAG_NO_WEP;
1907 desc->nseg = htole32(nsegs);
1908 for (i = 0; i < nsegs; i++) {
1909 desc->seg_addr[i] = htole32(segs[i].ds_addr);
1910 desc->seg_len[i] = htole16(segs[i].ds_len);
1913 bus_dmamap_sync(txq->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1914 bus_dmamap_sync(txq->desc_dmat, txq->desc_map, BUS_DMASYNC_PREWRITE);
1916 DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n",
1917 ac, txq->cur, le16toh(desc->len), nsegs));
1920 txq->cur = (txq->cur + 1) % IWI_TX_RING_COUNT;
1921 CSR_WRITE_4(sc, txq->csr_widx, txq->cur);
1927 iwi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
1928 const struct ieee80211_bpf_params *params)
1930 /* no support; just discard */
1932 ieee80211_free_node(ni);
1937 iwi_start_locked(struct ifnet *ifp)
1939 struct iwi_softc *sc = ifp->if_softc;
1941 struct ieee80211_node *ni;
1944 if ((ifp->if_flags & IFF_RUNNING) == 0)
1948 IF_DEQUEUE(&ifp->if_snd, m);
1951 ac = M_WME_GETAC(m);
1952 if (sc->txq[ac].queued > IWI_TX_RING_COUNT - 8) {
1953 /* there is no place left in this ring; tail drop */
1955 IF_PREPEND(&ifp->if_snd, m);
1956 ifp->if_flags |= IFF_OACTIVE;
1960 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1961 if (iwi_tx_start(ifp, m, ni, ac) != 0) {
1962 ieee80211_free_node(ni);
1967 sc->sc_tx_timer = 5;
1972 iwi_start(struct ifnet *ifp)
1974 iwi_start_locked(ifp);
1978 iwi_watchdog(void *arg)
1980 struct iwi_softc *sc = arg;
1981 struct ifnet *ifp = sc->sc_ifp;
1982 struct ieee80211com *ic = ifp->if_l2com;
1984 wlan_serialize_enter();
1985 if (sc->sc_tx_timer > 0) {
1986 if (--sc->sc_tx_timer == 0) {
1987 if_printf(ifp, "device timeout\n");
1989 wlan_serialize_exit();
1990 ieee80211_runtask(ic, &sc->sc_restarttask);
1991 wlan_serialize_enter();
1994 if (sc->sc_state_timer > 0) {
1995 if (--sc->sc_state_timer == 0) {
1996 if_printf(ifp, "firmware stuck in state %d, resetting\n",
1998 if (sc->fw_state == IWI_FW_SCANNING) {
1999 struct ieee80211com *ic = ifp->if_l2com;
2000 ieee80211_cancel_scan(TAILQ_FIRST(&ic->ic_vaps));
2002 wlan_serialize_exit();
2003 ieee80211_runtask(ic, &sc->sc_restarttask);
2004 wlan_serialize_enter();
2005 sc->sc_state_timer = 3;
2008 if (sc->sc_busy_timer > 0) {
2009 if (--sc->sc_busy_timer == 0) {
2010 if_printf(ifp, "firmware command timeout, resetting\n");
2011 wlan_serialize_exit();
2012 ieee80211_runtask(ic, &sc->sc_restarttask);
2013 wlan_serialize_enter();
2016 callout_reset(&sc->sc_wdtimer_callout, hz, iwi_watchdog, sc);
2017 wlan_serialize_exit();
2021 iwi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *ucred)
2023 struct iwi_softc *sc = ifp->if_softc;
2024 struct ieee80211com *ic = ifp->if_l2com;
2025 struct ifreq *ifr = (struct ifreq *) data;
2026 int error = 0, startall = 0;
2030 if (ifp->if_flags & IFF_UP) {
2031 if (!(ifp->if_flags & IFF_RUNNING)) {
2032 iwi_init_locked(sc);
2036 if (ifp->if_flags & IFF_RUNNING)
2037 iwi_stop_locked(sc);
2040 ieee80211_start_all(ic);
2043 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
2046 error = ether_ioctl(ifp, cmd, data);
2056 iwi_stop_master(struct iwi_softc *sc)
2061 /* disable interrupts */
2062 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0);
2064 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER);
2065 for (ntries = 0; ntries < 5; ntries++) {
2066 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED)
2071 device_printf(sc->sc_dev, "timeout waiting for master\n");
2073 tmp = CSR_READ_4(sc, IWI_CSR_RST);
2074 CSR_WRITE_4(sc, IWI_CSR_RST, tmp | IWI_RST_PRINCETON_RESET);
2076 sc->flags &= ~IWI_FLAG_FW_INITED;
2080 iwi_reset(struct iwi_softc *sc)
2085 iwi_stop_master(sc);
2087 tmp = CSR_READ_4(sc, IWI_CSR_CTL);
2088 CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_INIT);
2090 CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST);
2092 /* wait for clock stabilization */
2093 for (ntries = 0; ntries < 1000; ntries++) {
2094 if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY)
2098 if (ntries == 1000) {
2099 device_printf(sc->sc_dev,
2100 "timeout waiting for clock stabilization\n");
2104 tmp = CSR_READ_4(sc, IWI_CSR_RST);
2105 CSR_WRITE_4(sc, IWI_CSR_RST, tmp | IWI_RST_SOFT_RESET);
2109 tmp = CSR_READ_4(sc, IWI_CSR_CTL);
2110 CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_INIT);
2112 /* clear NIC memory */
2113 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0);
2114 for (i = 0; i < 0xc000; i++)
2115 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0);
2120 static const struct iwi_firmware_ohdr *
2121 iwi_setup_ofw(struct iwi_softc *sc, struct iwi_fw *fw)
2123 const struct firmware *fp = fw->fp;
2124 const struct iwi_firmware_ohdr *hdr;
2126 if (fp->datasize < sizeof (struct iwi_firmware_ohdr)) {
2127 device_printf(sc->sc_dev, "image '%s' too small\n", fp->name);
2130 hdr = (const struct iwi_firmware_ohdr *)fp->data;
2131 if ((IWI_FW_GET_MAJOR(le32toh(hdr->version)) != IWI_FW_REQ_MAJOR) ||
2132 (IWI_FW_GET_MINOR(le32toh(hdr->version)) != IWI_FW_REQ_MINOR)) {
2133 device_printf(sc->sc_dev, "version for '%s' %d.%d != %d.%d\n",
2134 fp->name, IWI_FW_GET_MAJOR(le32toh(hdr->version)),
2135 IWI_FW_GET_MINOR(le32toh(hdr->version)), IWI_FW_REQ_MAJOR,
2139 fw->data = ((const char *) fp->data) + sizeof(struct iwi_firmware_ohdr);
2140 fw->size = fp->datasize - sizeof(struct iwi_firmware_ohdr);
2141 fw->name = fp->name;
2145 static const struct iwi_firmware_ohdr *
2146 iwi_setup_oucode(struct iwi_softc *sc, struct iwi_fw *fw)
2148 const struct iwi_firmware_ohdr *hdr;
2150 hdr = iwi_setup_ofw(sc, fw);
2151 if (hdr != NULL && le32toh(hdr->mode) != IWI_FW_MODE_UCODE) {
2152 device_printf(sc->sc_dev, "%s is not a ucode image\n",
2160 iwi_getfw(struct iwi_fw *fw, const char *fwname,
2161 struct iwi_fw *uc, const char *ucname)
2163 wlan_assert_serialized();
2164 wlan_serialize_exit();
2166 fw->fp = firmware_get(fwname);
2168 /* NB: pre-3.0 ucode is packaged separately */
2169 if (uc->fp == NULL && fw->fp != NULL && fw->fp->version < 300)
2170 uc->fp = firmware_get(ucname);
2171 wlan_serialize_enter();
2175 * Get the required firmware images if not already loaded.
2176 * Note that we hold firmware images so long as the device
2177 * is marked up in case we need to reload them on device init.
2178 * This is necessary because we re-init the device sometimes
2179 * from a context where we cannot read from the filesystem
2180 * (e.g. from the taskqueue thread when rfkill is re-enabled).
2181 * XXX return 0 on success, 1 on error.
2183 * NB: the order of get'ing and put'ing images here is
2184 * intentional to support handling firmware images bundled
2185 * by operating mode and/or all together in one file with
2186 * the boot firmware as "master".
2189 iwi_get_firmware(struct iwi_softc *sc, enum ieee80211_opmode opmode)
2191 const struct iwi_firmware_hdr *hdr;
2192 const struct firmware *fp;
2194 wlan_serialize_enter();
2196 /* invalidate cached firmware on mode change */
2197 if (sc->fw_mode != opmode)
2198 iwi_put_firmware(sc);
2201 case IEEE80211_M_STA:
2202 iwi_getfw(&sc->fw_fw, "iwi_bss", &sc->fw_uc, "iwi_ucode_bss");
2204 case IEEE80211_M_IBSS:
2205 iwi_getfw(&sc->fw_fw, "iwi_ibss", &sc->fw_uc, "iwi_ucode_ibss");
2207 case IEEE80211_M_MONITOR:
2208 iwi_getfw(&sc->fw_fw, "iwi_monitor",
2209 &sc->fw_uc, "iwi_ucode_monitor");
2212 device_printf(sc->sc_dev, "unknown opmode %d\n", opmode);
2213 wlan_serialize_exit();
2218 device_printf(sc->sc_dev, "could not load firmware\n");
2221 if (fp->version < 300) {
2223 * Firmware prior to 3.0 was packaged as separate
2224 * boot, firmware, and ucode images. Verify the
2225 * ucode image was read in, retrieve the boot image
2226 * if needed, and check version stamps for consistency.
2227 * The version stamps in the data are also checked
2228 * above; this is a bit paranoid but is a cheap
2229 * safeguard against mis-packaging.
2231 if (sc->fw_uc.fp == NULL) {
2232 device_printf(sc->sc_dev, "could not load ucode\n");
2235 if (sc->fw_boot.fp == NULL) {
2236 sc->fw_boot.fp = firmware_get("iwi_boot");
2237 if (sc->fw_boot.fp == NULL) {
2238 device_printf(sc->sc_dev,
2239 "could not load boot firmware\n");
2243 if (sc->fw_boot.fp->version != sc->fw_fw.fp->version ||
2244 sc->fw_boot.fp->version != sc->fw_uc.fp->version) {
2245 device_printf(sc->sc_dev,
2246 "firmware version mismatch: "
2247 "'%s' is %d, '%s' is %d, '%s' is %d\n",
2248 sc->fw_boot.fp->name, sc->fw_boot.fp->version,
2249 sc->fw_uc.fp->name, sc->fw_uc.fp->version,
2250 sc->fw_fw.fp->name, sc->fw_fw.fp->version
2255 * Check and setup each image.
2257 if (iwi_setup_oucode(sc, &sc->fw_uc) == NULL ||
2258 iwi_setup_ofw(sc, &sc->fw_boot) == NULL ||
2259 iwi_setup_ofw(sc, &sc->fw_fw) == NULL)
2263 * Check and setup combined image.
2265 if (fp->datasize < sizeof(struct iwi_firmware_hdr)) {
2266 device_printf(sc->sc_dev, "image '%s' too small\n",
2270 hdr = (const struct iwi_firmware_hdr *)fp->data;
2271 if (fp->datasize < sizeof(*hdr) + le32toh(hdr->bsize) + le32toh(hdr->usize)
2272 + le32toh(hdr->fsize)) {
2273 device_printf(sc->sc_dev, "image '%s' too small (2)\n",
2277 sc->fw_boot.data = ((const char *) fp->data) + sizeof(*hdr);
2278 sc->fw_boot.size = le32toh(hdr->bsize);
2279 sc->fw_boot.name = fp->name;
2280 sc->fw_uc.data = sc->fw_boot.data + sc->fw_boot.size;
2281 sc->fw_uc.size = le32toh(hdr->usize);
2282 sc->fw_uc.name = fp->name;
2283 sc->fw_fw.data = sc->fw_uc.data + sc->fw_uc.size;
2284 sc->fw_fw.size = le32toh(hdr->fsize);
2285 sc->fw_fw.name = fp->name;
2288 device_printf(sc->sc_dev, "boot %d ucode %d fw %d bytes\n",
2289 sc->fw_boot.size, sc->fw_uc.size, sc->fw_fw.size);
2292 sc->fw_mode = opmode;
2293 wlan_serialize_exit();
2296 iwi_put_firmware(sc);
2297 wlan_serialize_exit();
2302 iwi_put_fw(struct iwi_fw *fw)
2304 wlan_assert_serialized();
2305 wlan_serialize_exit();
2306 if (fw->fp != NULL) {
2307 firmware_put(fw->fp, FIRMWARE_UNLOAD);
2310 wlan_serialize_enter();
2317 * Release any cached firmware images.
2320 iwi_put_firmware(struct iwi_softc *sc)
2322 iwi_put_fw(&sc->fw_uc);
2323 iwi_put_fw(&sc->fw_fw);
2324 iwi_put_fw(&sc->fw_boot);
2328 iwi_load_ucode(struct iwi_softc *sc, const struct iwi_fw *fw)
2332 const char *uc = fw->data;
2333 size_t size = fw->size;
2334 int i, ntries, error;
2337 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) |
2338 IWI_RST_STOP_MASTER);
2339 for (ntries = 0; ntries < 5; ntries++) {
2340 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED)
2345 device_printf(sc->sc_dev, "timeout waiting for master\n");
2350 MEM_WRITE_4(sc, 0x3000e0, 0x80000000);
2353 tmp = CSR_READ_4(sc, IWI_CSR_RST);
2354 tmp &= ~IWI_RST_PRINCETON_RESET;
2355 CSR_WRITE_4(sc, IWI_CSR_RST, tmp);
2358 MEM_WRITE_4(sc, 0x3000e0, 0);
2360 MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, 1);
2362 MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, 0);
2364 MEM_WRITE_1(sc, 0x200000, 0x00);
2365 MEM_WRITE_1(sc, 0x200000, 0x40);
2368 /* write microcode into adapter memory */
2369 for (w = (const uint16_t *)uc; size > 0; w++, size -= 2)
2370 MEM_WRITE_2(sc, 0x200010, htole16(*w));
2372 MEM_WRITE_1(sc, 0x200000, 0x00);
2373 MEM_WRITE_1(sc, 0x200000, 0x80);
2375 /* wait until we get an answer */
2376 for (ntries = 0; ntries < 100; ntries++) {
2377 if (MEM_READ_1(sc, 0x200000) & 1)
2381 if (ntries == 100) {
2382 device_printf(sc->sc_dev,
2383 "timeout waiting for ucode to initialize\n");
2388 /* read the answer or the firmware will not initialize properly */
2389 for (i = 0; i < 7; i++)
2390 MEM_READ_4(sc, 0x200004);
2392 MEM_WRITE_1(sc, 0x200000, 0x00);
2398 /* macro to handle unaligned little endian data in firmware image */
2399 #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24)
2402 iwi_load_firmware(struct iwi_softc *sc, const struct iwi_fw *fw)
2405 uint32_t sentinel, ctl, src, dst, sum, len, mlen, tmp;
2408 /* copy firmware image to DMA memory */
2409 memcpy(sc->fw_virtaddr, fw->data, fw->size);
2411 /* make sure the adapter will get up-to-date values */
2412 bus_dmamap_sync(sc->fw_dmat, sc->fw_map, BUS_DMASYNC_PREWRITE);
2414 /* tell the adapter where the command blocks are stored */
2415 MEM_WRITE_4(sc, 0x3000a0, 0x27000);
2418 * Store command blocks into adapter's internal memory using register
2419 * indirections. The adapter will read the firmware image through DMA
2420 * using information stored in command blocks.
2422 src = sc->fw_physaddr;
2423 p = sc->fw_virtaddr;
2425 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000);
2428 dst = GETLE32(p); p += 4; src += 4;
2429 len = GETLE32(p); p += 4; src += 4;
2433 mlen = min(len, IWI_CB_MAXDATALEN);
2435 ctl = IWI_CB_DEFAULT_CTL | mlen;
2436 sum = ctl ^ src ^ dst;
2438 /* write a command block */
2439 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl);
2440 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, src);
2441 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, dst);
2442 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum);
2450 /* write a fictive final command block (sentinel) */
2451 sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR);
2452 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0);
2454 tmp = CSR_READ_4(sc, IWI_CSR_RST);
2455 tmp &= ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER);
2456 CSR_WRITE_4(sc, IWI_CSR_RST, tmp);
2458 /* tell the adapter to start processing command blocks */
2459 MEM_WRITE_4(sc, 0x3000a4, 0x540100);
2461 /* wait until the adapter reaches the sentinel */
2462 for (ntries = 0; ntries < 400; ntries++) {
2463 if (MEM_READ_4(sc, 0x3000d0) >= sentinel)
2467 /* sync dma, just in case */
2468 bus_dmamap_sync(sc->fw_dmat, sc->fw_map, BUS_DMASYNC_POSTWRITE);
2469 if (ntries == 400) {
2470 device_printf(sc->sc_dev,
2471 "timeout processing command blocks for %s firmware\n",
2476 /* we're done with command blocks processing */
2477 MEM_WRITE_4(sc, 0x3000a4, 0x540c00);
2479 /* allow interrupts so we know when the firmware is ready */
2480 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK);
2482 /* tell the adapter to initialize the firmware */
2483 CSR_WRITE_4(sc, IWI_CSR_RST, 0);
2485 tmp = CSR_READ_4(sc, IWI_CSR_CTL);
2486 CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_ALLOW_STANDBY);
2488 /* wait at most one second for firmware initialization to complete */
2489 error = zsleep(sc, &wlan_global_serializer, 0, "iwiinit", hz);
2491 device_printf(sc->sc_dev, "timeout waiting for firmware "
2492 "initialization to complete\n");
2499 iwi_setpowermode(struct iwi_softc *sc, struct ieee80211vap *vap)
2503 if (vap->iv_flags & IEEE80211_F_PMGTON) {
2504 /* XXX set more fine-grained operation */
2505 data = htole32(IWI_POWER_MODE_MAX);
2507 data = htole32(IWI_POWER_MODE_CAM);
2509 DPRINTF(("Setting power mode to %u\n", le32toh(data)));
2510 return iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data);
2514 iwi_setwepkeys(struct iwi_softc *sc, struct ieee80211vap *vap)
2516 struct iwi_wep_key wepkey;
2517 struct ieee80211_key *wk;
2520 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2521 wk = &vap->iv_nw_keys[i];
2523 wepkey.cmd = IWI_WEP_KEY_CMD_SETKEY;
2525 wepkey.len = wk->wk_keylen;
2526 memset(wepkey.key, 0, sizeof wepkey.key);
2527 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen);
2528 DPRINTF(("Setting wep key index %u len %u\n", wepkey.idx,
2530 error = iwi_cmd(sc, IWI_CMD_SET_WEP_KEY, &wepkey,
2539 iwi_config(struct iwi_softc *sc)
2541 struct ifnet *ifp = sc->sc_ifp;
2542 struct ieee80211com *ic = ifp->if_l2com;
2543 struct iwi_configuration config;
2544 struct iwi_rateset rs;
2545 struct iwi_txpower power;
2548 const uint8_t *eaddr = IF_LLADDR(ifp);
2550 DPRINTF(("Setting MAC address to %6D\n", eaddr, ":"));
2551 error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, IF_LLADDR(ifp),
2552 IEEE80211_ADDR_LEN);
2556 memset(&config, 0, sizeof config);
2557 config.bluetooth_coexistence = sc->bluetooth;
2558 config.silence_threshold = 0x1e;
2559 config.antenna = sc->antenna;
2560 config.multicast_enabled = 1;
2561 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0;
2562 config.disable_unicast_decryption = 1;
2563 config.disable_multicast_decryption = 1;
2564 DPRINTF(("Configuring adapter\n"));
2565 error = iwi_cmd(sc, IWI_CMD_SET_CONFIG, &config, sizeof config);
2568 if (ic->ic_opmode == IEEE80211_M_IBSS) {
2569 power.mode = IWI_MODE_11B;
2571 for (i = 0; i < 11; i++) {
2572 power.chan[i].chan = i + 1;
2573 power.chan[i].power = IWI_TXPOWER_MAX;
2575 DPRINTF(("Setting .11b channels tx power\n"));
2576 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power);
2580 power.mode = IWI_MODE_11G;
2581 DPRINTF(("Setting .11g channels tx power\n"));
2582 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power);
2587 memset(&rs, 0, sizeof rs);
2588 rs.mode = IWI_MODE_11G;
2589 rs.type = IWI_RATESET_TYPE_SUPPORTED;
2590 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates;
2591 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates,
2593 DPRINTF(("Setting .11bg supported rates (%u)\n", rs.nrates));
2594 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs);
2598 memset(&rs, 0, sizeof rs);
2599 rs.mode = IWI_MODE_11A;
2600 rs.type = IWI_RATESET_TYPE_SUPPORTED;
2601 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates;
2602 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11A].rs_rates,
2604 DPRINTF(("Setting .11a supported rates (%u)\n", rs.nrates));
2605 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs);
2609 data = htole32(karc4random());
2610 DPRINTF(("Setting initialization vector to %u\n", le32toh(data)));
2611 error = iwi_cmd(sc, IWI_CMD_SET_IV, &data, sizeof data);
2615 /* enable adapter */
2616 DPRINTF(("Enabling adapter\n"));
2617 return iwi_cmd(sc, IWI_CMD_ENABLE, NULL, 0);
2620 static __inline void
2621 set_scan_type(struct iwi_scan_ext *scan, int ix, int scan_type)
2623 uint8_t *st = &scan->scan_type[ix / 2];
2625 *st = (*st & 0xf0) | ((scan_type & 0xf) << 0);
2627 *st = (*st & 0x0f) | ((scan_type & 0xf) << 4);
2631 scan_type(const struct ieee80211_scan_state *ss,
2632 const struct ieee80211_channel *chan)
2634 /* We can only set one essid for a directed scan */
2635 if (ss->ss_nssid != 0)
2636 return IWI_SCAN_TYPE_BDIRECTED;
2637 if ((ss->ss_flags & IEEE80211_SCAN_ACTIVE) &&
2638 (chan->ic_flags & IEEE80211_CHAN_PASSIVE) == 0)
2639 return IWI_SCAN_TYPE_BROADCAST;
2640 return IWI_SCAN_TYPE_PASSIVE;
2644 scan_band(const struct ieee80211_channel *c)
2646 return IEEE80211_IS_CHAN_5GHZ(c) ? IWI_CHAN_5GHZ : IWI_CHAN_2GHZ;
2650 * Start a scan on the current channel or all channels.
2653 iwi_scanchan(struct iwi_softc *sc, unsigned long maxdwell, int allchan)
2655 struct ieee80211com *ic;
2656 struct ieee80211_channel *chan;
2657 struct ieee80211_scan_state *ss;
2658 struct iwi_scan_ext scan;
2661 if (sc->fw_state == IWI_FW_SCANNING) {
2663 * This should not happen as we only trigger scan_next after
2666 DPRINTF(("%s: called too early - still scanning\n", __func__));
2669 IWI_STATE_BEGIN(sc, IWI_FW_SCANNING);
2671 ic = sc->sc_ifp->if_l2com;
2674 memset(&scan, 0, sizeof scan);
2675 scan.full_scan_index = htole32(++sc->sc_scangen);
2676 scan.dwell_time[IWI_SCAN_TYPE_PASSIVE] = htole16(maxdwell);
2677 if (ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN) {
2679 * Use very short dwell times for when we send probe request
2680 * frames. Without this bg scans hang. Ideally this should
2681 * be handled with early-termination as done by net80211 but
2682 * that's not feasible (aborting a scan is problematic).
2684 scan.dwell_time[IWI_SCAN_TYPE_BROADCAST] = htole16(30);
2685 scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED] = htole16(30);
2687 scan.dwell_time[IWI_SCAN_TYPE_BROADCAST] = htole16(maxdwell);
2688 scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED] = htole16(maxdwell);
2691 /* We can only set one essid for a directed scan */
2692 if (ss->ss_nssid != 0) {
2693 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ss->ss_ssid[0].ssid,
2694 ss->ss_ssid[0].len);
2700 int i, next, band, b, bstart;
2702 * Convert scan list to run-length encoded channel list
2703 * the firmware requires (preserving the order setup by
2704 * net80211). The first entry in each run specifies the
2705 * band and the count of items in the run.
2707 next = 0; /* next open slot */
2708 bstart = 0; /* NB: not needed, silence compiler */
2709 band = -1; /* NB: impossible value */
2710 KASSERT(ss->ss_last > 0, ("no channels"));
2711 for (i = 0; i < ss->ss_last; i++) {
2712 chan = ss->ss_chans[i];
2713 b = scan_band(chan);
2716 scan.channels[bstart] =
2717 (next - bstart) | band;
2718 /* NB: this allocates a slot for the run-len */
2719 band = b, bstart = next++;
2721 if (next >= IWI_SCAN_CHANNELS) {
2722 DPRINTF(("truncating scan list\n"));
2725 scan.channels[next] = ieee80211_chan2ieee(ic, chan);
2726 set_scan_type(&scan, next, scan_type(ss, chan));
2729 scan.channels[bstart] = (next - bstart) | band;
2731 /* Scan the current channel only */
2732 chan = ic->ic_curchan;
2733 scan.channels[0] = 1 | scan_band(chan);
2734 scan.channels[1] = ieee80211_chan2ieee(ic, chan);
2735 set_scan_type(&scan, 1, scan_type(ss, chan));
2738 if (iwi_debug > 0) {
2739 static const char *scantype[8] =
2740 { "PSTOP", "PASV", "DIR", "BCAST", "BDIR", "5", "6", "7" };
2742 kprintf("Scan request: index %u dwell %d/%d/%d\n"
2743 , le32toh(scan.full_scan_index)
2744 , le16toh(scan.dwell_time[IWI_SCAN_TYPE_PASSIVE])
2745 , le16toh(scan.dwell_time[IWI_SCAN_TYPE_BROADCAST])
2746 , le16toh(scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED])
2750 int run = scan.channels[i];
2753 kprintf("Scan %d %s channels:", run & 0x3f,
2754 run & IWI_CHAN_2GHZ ? "2.4GHz" : "5GHz");
2755 for (run &= 0x3f, i++; run > 0; run--, i++) {
2756 uint8_t type = scan.scan_type[i/2];
2757 kprintf(" %u/%s", scan.channels[i],
2758 scantype[(i & 1 ? type : type>>4) & 7]);
2761 } while (i < IWI_SCAN_CHANNELS);
2765 return (iwi_cmd(sc, IWI_CMD_SCAN_EXT, &scan, sizeof scan));
2769 iwi_set_sensitivity(struct iwi_softc *sc, int8_t rssi_dbm)
2771 struct iwi_sensitivity sens;
2773 DPRINTF(("Setting sensitivity to %d\n", rssi_dbm));
2775 memset(&sens, 0, sizeof sens);
2776 sens.rssi = htole16(rssi_dbm);
2777 return iwi_cmd(sc, IWI_CMD_SET_SENSITIVITY, &sens, sizeof sens);
2781 iwi_auth_and_assoc(struct iwi_softc *sc, struct ieee80211vap *vap)
2783 struct ieee80211com *ic = vap->iv_ic;
2784 struct ifnet *ifp = vap->iv_ifp;
2785 struct ieee80211_node *ni = vap->iv_bss;
2786 struct iwi_configuration config;
2787 struct iwi_associate *assoc = &sc->assoc;
2788 struct iwi_rateset rs;
2793 if (sc->flags & IWI_FLAG_ASSOCIATED) {
2794 DPRINTF(("Already associated\n"));
2798 IWI_STATE_BEGIN(sc, IWI_FW_ASSOCIATING);
2802 if (IEEE80211_IS_CHAN_A(ic->ic_curchan))
2803 mode = IWI_MODE_11A;
2804 else if (IEEE80211_IS_CHAN_G(ic->ic_curchan))
2805 mode = IWI_MODE_11G;
2806 if (IEEE80211_IS_CHAN_B(ic->ic_curchan))
2807 mode = IWI_MODE_11B;
2809 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) {
2810 memset(&config, 0, sizeof config);
2811 config.bluetooth_coexistence = sc->bluetooth;
2812 config.antenna = sc->antenna;
2813 config.multicast_enabled = 1;
2814 if (mode == IWI_MODE_11G)
2815 config.use_protection = 1;
2816 config.answer_pbreq =
2817 (vap->iv_opmode == IEEE80211_M_IBSS) ? 1 : 0;
2818 config.disable_unicast_decryption = 1;
2819 config.disable_multicast_decryption = 1;
2820 DPRINTF(("Configuring adapter\n"));
2821 error = iwi_cmd(sc, IWI_CMD_SET_CONFIG, &config, sizeof config);
2827 if (iwi_debug > 0) {
2828 kprintf("Setting ESSID to ");
2829 ieee80211_print_essid(ni->ni_essid, ni->ni_esslen);
2833 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen);
2837 error = iwi_setpowermode(sc, vap);
2841 data = htole32(vap->iv_rtsthreshold);
2842 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data)));
2843 error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data);
2847 data = htole32(vap->iv_fragthreshold);
2848 DPRINTF(("Setting fragmentation threshold to %u\n", le32toh(data)));
2849 error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data);
2853 /* the rate set has already been "negotiated" */
2854 memset(&rs, 0, sizeof rs);
2856 rs.type = IWI_RATESET_TYPE_NEGOTIATED;
2857 rs.nrates = ni->ni_rates.rs_nrates;
2858 if (rs.nrates > IWI_RATESET_SIZE) {
2859 DPRINTF(("Truncating negotiated rate set from %u\n",
2861 rs.nrates = IWI_RATESET_SIZE;
2863 memcpy(rs.rates, ni->ni_rates.rs_rates, rs.nrates);
2864 DPRINTF(("Setting negotiated rates (%u)\n", rs.nrates));
2865 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs);
2869 memset(assoc, 0, sizeof *assoc);
2871 if ((vap->iv_flags & IEEE80211_F_WME) && ni->ni_ies.wme_ie != NULL) {
2872 /* NB: don't treat WME setup as failure */
2873 if (iwi_wme_setparams(sc, ic) == 0 && iwi_wme_setie(sc) == 0)
2874 assoc->policy |= htole16(IWI_POLICY_WME);
2875 /* XXX complain on failure? */
2878 if (vap->iv_appie_wpa != NULL) {
2879 struct ieee80211_appie *ie = vap->iv_appie_wpa;
2881 DPRINTF(("Setting optional IE (len=%u)\n", ie->ie_len));
2882 error = iwi_cmd(sc, IWI_CMD_SET_OPTIE, ie->ie_data, ie->ie_len);
2887 error = iwi_set_sensitivity(sc, ic->ic_node_getrssi(ni));
2892 assoc->chan = ic->ic_curchan->ic_ieee;
2894 * NB: do not arrange for shared key auth w/o privacy
2895 * (i.e. a wep key); it causes a firmware error.
2897 if ((vap->iv_flags & IEEE80211_F_PRIVACY) &&
2898 ni->ni_authmode == IEEE80211_AUTH_SHARED) {
2899 assoc->auth = IWI_AUTH_SHARED;
2901 * It's possible to have privacy marked but no default
2902 * key setup. This typically is due to a user app bug
2903 * but if we blindly grab the key the firmware will
2904 * barf so avoid it for now.
2906 if (vap->iv_def_txkey != IEEE80211_KEYIX_NONE)
2907 assoc->auth |= vap->iv_def_txkey << 4;
2909 error = iwi_setwepkeys(sc, vap);
2913 if (vap->iv_flags & IEEE80211_F_WPA)
2914 assoc->policy |= htole16(IWI_POLICY_WPA);
2915 if (vap->iv_opmode == IEEE80211_M_IBSS && ni->ni_tstamp.tsf == 0)
2916 assoc->type = IWI_HC_IBSS_START;
2918 assoc->type = IWI_HC_ASSOC;
2919 memcpy(assoc->tstamp, ni->ni_tstamp.data, 8);
2921 if (vap->iv_opmode == IEEE80211_M_IBSS)
2922 capinfo = IEEE80211_CAPINFO_IBSS;
2924 capinfo = IEEE80211_CAPINFO_ESS;
2925 if (vap->iv_flags & IEEE80211_F_PRIVACY)
2926 capinfo |= IEEE80211_CAPINFO_PRIVACY;
2927 if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) &&
2928 IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan))
2929 capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE;
2930 if (ni->ni_capinfo & IEEE80211_CAPINFO_SHORT_SLOTTIME)
2931 capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME;
2932 assoc->capinfo = htole16(capinfo);
2934 assoc->lintval = htole16(ic->ic_lintval);
2935 assoc->intval = htole16(ni->ni_intval);
2936 IEEE80211_ADDR_COPY(assoc->bssid, ni->ni_bssid);
2937 if (vap->iv_opmode == IEEE80211_M_IBSS)
2938 IEEE80211_ADDR_COPY(assoc->dst, ifp->if_broadcastaddr);
2940 IEEE80211_ADDR_COPY(assoc->dst, ni->ni_bssid);
2942 DPRINTF(("%s bssid %6D dst %6D channel %u policy 0x%x "
2943 "auth %u capinfo 0x%x lintval %u bintval %u\n",
2944 assoc->type == IWI_HC_IBSS_START ? "Start" : "Join",
2945 assoc->bssid, ":", assoc->dst, ":",
2946 assoc->chan, le16toh(assoc->policy), assoc->auth,
2947 le16toh(assoc->capinfo), le16toh(assoc->lintval),
2948 le16toh(assoc->intval)));
2949 error = iwi_cmd(sc, IWI_CMD_ASSOCIATE, assoc, sizeof *assoc);
2952 IWI_STATE_END(sc, IWI_FW_ASSOCIATING);
2958 iwi_disassoc_task(void *arg, int pending)
2960 struct iwi_softc *sc = arg;
2962 wlan_serialize_enter();
2963 iwi_disassociate(sc, 0);
2964 wlan_serialize_exit();
2968 iwi_disassociate(struct iwi_softc *sc, int quiet)
2970 struct iwi_associate *assoc = &sc->assoc;
2972 if ((sc->flags & IWI_FLAG_ASSOCIATED) == 0) {
2973 DPRINTF(("Not associated\n"));
2977 IWI_STATE_BEGIN(sc, IWI_FW_DISASSOCIATING);
2980 assoc->type = IWI_HC_DISASSOC_QUIET;
2982 assoc->type = IWI_HC_DISASSOC;
2984 DPRINTF(("Trying to disassociate from %6D channel %u\n",
2985 assoc->bssid, ":", assoc->chan));
2986 return iwi_cmd(sc, IWI_CMD_ASSOCIATE, assoc, sizeof *assoc);
2990 * release dma resources for the firmware
2993 iwi_release_fw_dma(struct iwi_softc *sc)
2995 if (sc->fw_flags & IWI_FW_HAVE_PHY)
2996 bus_dmamap_unload(sc->fw_dmat, sc->fw_map);
2997 if (sc->fw_flags & IWI_FW_HAVE_MAP)
2998 bus_dmamem_free(sc->fw_dmat, sc->fw_virtaddr, sc->fw_map);
2999 if (sc->fw_flags & IWI_FW_HAVE_DMAT)
3000 bus_dma_tag_destroy(sc->fw_dmat);
3003 sc->fw_dma_size = 0;
3006 sc->fw_physaddr = 0;
3007 sc->fw_virtaddr = NULL;
3011 * allocate the dma descriptor for the firmware.
3012 * Return 0 on success, 1 on error.
3013 * Must be called unlocked, protected by IWI_FLAG_FW_LOADING.
3016 iwi_init_fw_dma(struct iwi_softc *sc, int size)
3018 if (sc->fw_dma_size >= size)
3020 if (bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT,
3021 BUS_SPACE_MAXADDR, NULL, NULL, size, 1, size,
3022 0, &sc->fw_dmat) != 0) {
3023 device_printf(sc->sc_dev,
3024 "could not create firmware DMA tag\n");
3027 sc->fw_flags |= IWI_FW_HAVE_DMAT;
3028 if (bus_dmamem_alloc(sc->fw_dmat, &sc->fw_virtaddr, 0,
3029 &sc->fw_map) != 0) {
3030 device_printf(sc->sc_dev,
3031 "could not allocate firmware DMA memory\n");
3034 sc->fw_flags |= IWI_FW_HAVE_MAP;
3035 if (bus_dmamap_load(sc->fw_dmat, sc->fw_map, sc->fw_virtaddr,
3036 size, iwi_dma_map_addr, &sc->fw_physaddr, 0) != 0) {
3037 device_printf(sc->sc_dev, "could not load firmware DMA map\n");
3040 sc->fw_flags |= IWI_FW_HAVE_PHY;
3041 sc->fw_dma_size = size;
3045 iwi_release_fw_dma(sc);
3050 iwi_init_locked(struct iwi_softc *sc)
3052 struct ifnet *ifp = sc->sc_ifp;
3053 struct iwi_rx_data *data;
3056 if (sc->fw_state == IWI_FW_LOADING) {
3057 device_printf(sc->sc_dev, "%s: already loading\n", __func__);
3058 return; /* XXX: condvar? */
3061 iwi_stop_locked(sc);
3063 IWI_STATE_BEGIN(sc, IWI_FW_LOADING);
3065 if (iwi_reset(sc) != 0) {
3066 device_printf(sc->sc_dev, "could not reset adapter\n");
3069 if (iwi_load_firmware(sc, &sc->fw_boot) != 0) {
3070 device_printf(sc->sc_dev,
3071 "could not load boot firmware %s\n", sc->fw_boot.name);
3074 if (iwi_load_ucode(sc, &sc->fw_uc) != 0) {
3075 device_printf(sc->sc_dev,
3076 "could not load microcode %s\n", sc->fw_uc.name);
3080 iwi_stop_master(sc);
3082 CSR_WRITE_4(sc, IWI_CSR_CMD_BASE, sc->cmdq.physaddr);
3083 CSR_WRITE_4(sc, IWI_CSR_CMD_SIZE, sc->cmdq.count);
3084 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur);
3086 CSR_WRITE_4(sc, IWI_CSR_TX1_BASE, sc->txq[0].physaddr);
3087 CSR_WRITE_4(sc, IWI_CSR_TX1_SIZE, sc->txq[0].count);
3088 CSR_WRITE_4(sc, IWI_CSR_TX1_WIDX, sc->txq[0].cur);
3090 CSR_WRITE_4(sc, IWI_CSR_TX2_BASE, sc->txq[1].physaddr);
3091 CSR_WRITE_4(sc, IWI_CSR_TX2_SIZE, sc->txq[1].count);
3092 CSR_WRITE_4(sc, IWI_CSR_TX2_WIDX, sc->txq[1].cur);
3094 CSR_WRITE_4(sc, IWI_CSR_TX3_BASE, sc->txq[2].physaddr);
3095 CSR_WRITE_4(sc, IWI_CSR_TX3_SIZE, sc->txq[2].count);
3096 CSR_WRITE_4(sc, IWI_CSR_TX3_WIDX, sc->txq[2].cur);
3098 CSR_WRITE_4(sc, IWI_CSR_TX4_BASE, sc->txq[3].physaddr);
3099 CSR_WRITE_4(sc, IWI_CSR_TX4_SIZE, sc->txq[3].count);
3100 CSR_WRITE_4(sc, IWI_CSR_TX4_WIDX, sc->txq[3].cur);
3102 for (i = 0; i < sc->rxq.count; i++) {
3103 data = &sc->rxq.data[i];
3104 CSR_WRITE_4(sc, data->reg, data->physaddr);
3107 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, sc->rxq.count - 1);
3109 if (iwi_load_firmware(sc, &sc->fw_fw) != 0) {
3110 device_printf(sc->sc_dev,
3111 "could not load main firmware %s\n", sc->fw_fw.name);
3114 sc->flags |= IWI_FLAG_FW_INITED;
3116 IWI_STATE_END(sc, IWI_FW_LOADING);
3118 if (iwi_config(sc) != 0) {
3119 device_printf(sc->sc_dev, "unable to enable adapter\n");
3123 callout_reset(&sc->sc_wdtimer_callout, hz, iwi_watchdog, sc);
3124 ifp->if_flags &= ~IFF_OACTIVE;
3125 ifp->if_flags |= IFF_RUNNING;
3128 IWI_STATE_END(sc, IWI_FW_LOADING);
3130 iwi_stop_locked(sc);
3134 iwi_init(void *priv)
3136 struct iwi_softc *sc = priv;
3137 struct ifnet *ifp = sc->sc_ifp;
3138 struct ieee80211com *ic = ifp->if_l2com;
3140 iwi_init_locked(sc);
3142 if (ifp->if_flags & IFF_RUNNING)
3143 ieee80211_start_all(ic);
3147 iwi_stop_locked(void *priv)
3149 struct iwi_softc *sc = priv;
3150 struct ifnet *ifp = sc->sc_ifp;
3152 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
3154 if (sc->sc_softled) {
3155 callout_stop(&sc->sc_ledtimer_callout);
3156 sc->sc_blinking = 0;
3158 callout_stop(&sc->sc_wdtimer_callout);
3159 callout_stop(&sc->sc_rftimer_callout);
3161 iwi_stop_master(sc);
3163 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_SOFT_RESET);
3166 iwi_reset_cmd_ring(sc, &sc->cmdq);
3167 iwi_reset_tx_ring(sc, &sc->txq[0]);
3168 iwi_reset_tx_ring(sc, &sc->txq[1]);
3169 iwi_reset_tx_ring(sc, &sc->txq[2]);
3170 iwi_reset_tx_ring(sc, &sc->txq[3]);
3171 iwi_reset_rx_ring(sc, &sc->rxq);
3173 sc->sc_tx_timer = 0;
3174 sc->sc_state_timer = 0;
3175 sc->sc_busy_timer = 0;
3176 sc->flags &= ~(IWI_FLAG_BUSY | IWI_FLAG_ASSOCIATED);
3177 sc->fw_state = IWI_FW_IDLE;
3182 iwi_stop(struct iwi_softc *sc)
3184 iwi_stop_locked(sc);
3188 iwi_restart_task(void *arg, int npending)
3190 struct iwi_softc *sc = arg;
3192 wlan_serialize_enter();
3194 wlan_serialize_exit();
3198 * Return whether or not the radio is enabled in hardware
3199 * (i.e. the rfkill switch is "off").
3202 iwi_getrfkill(struct iwi_softc *sc)
3204 return (CSR_READ_4(sc, IWI_CSR_IO) & IWI_IO_RADIO_ENABLED) == 0;
3208 iwi_radio_on_task(void *arg, int pending)
3210 struct iwi_softc *sc = arg;
3211 struct ieee80211com *ic = sc->sc_ifp->if_l2com;
3213 wlan_serialize_enter();
3214 device_printf(sc->sc_dev, "radio turned on\n");
3217 ieee80211_notify_radio(ic, 1);
3218 wlan_serialize_exit();
3222 iwi_rfkill_poll(void *arg)
3224 struct iwi_softc *sc = arg;
3227 * Check for a change in rfkill state. We get an
3228 * interrupt when a radio is disabled but not when
3229 * it is enabled so we must poll for the latter.
3231 if (!iwi_getrfkill(sc)) {
3232 struct ifnet *ifp = sc->sc_ifp;
3233 struct ieee80211com *ic = ifp->if_l2com;
3235 ieee80211_runtask(ic, &sc->sc_radiontask);
3238 callout_reset(&sc->sc_rftimer_callout, 2*hz, iwi_rfkill_poll, sc);
3242 iwi_radio_off_task(void *arg, int pending)
3244 struct iwi_softc *sc = arg;
3245 struct ieee80211com *ic = sc->sc_ifp->if_l2com;
3247 wlan_serialize_enter();
3248 device_printf(sc->sc_dev, "radio turned off\n");
3250 ieee80211_notify_radio(ic, 0);
3252 iwi_stop_locked(sc);
3253 iwi_rfkill_poll(sc);
3254 wlan_serialize_exit();
3258 iwi_sysctl_stats(SYSCTL_HANDLER_ARGS)
3260 struct iwi_softc *sc = arg1;
3261 uint32_t size, buf[128];
3263 memset(buf, 0, sizeof buf);
3265 if (!(sc->flags & IWI_FLAG_FW_INITED))
3266 return SYSCTL_OUT(req, buf, sizeof buf);
3268 size = min(CSR_READ_4(sc, IWI_CSR_TABLE0_SIZE), 128 - 1);
3269 CSR_READ_REGION_4(sc, IWI_CSR_TABLE0_BASE, &buf[1], size);
3271 return SYSCTL_OUT(req, buf, size);
3275 iwi_sysctl_radio(SYSCTL_HANDLER_ARGS)
3277 struct iwi_softc *sc = arg1;
3278 int val = !iwi_getrfkill(sc);
3280 return SYSCTL_OUT(req, &val, sizeof val);
3287 iwi_sysctlattach(struct iwi_softc *sc)
3289 struct sysctl_ctx_list *ctx;
3290 struct sysctl_oid *tree;
3292 ctx = &sc->sc_sysctl_ctx;
3293 sysctl_ctx_init(ctx);
3295 tree = SYSCTL_ADD_NODE(ctx, SYSCTL_STATIC_CHILDREN(_hw),
3297 device_get_nameunit(sc->sc_dev),
3300 device_printf(sc->sc_dev, "can't add sysctl node\n");
3304 sc->sc_sysctl_tree = tree;
3306 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "radio",
3307 CTLTYPE_INT | CTLFLAG_RD, sc, 0, iwi_sysctl_radio, "I",
3308 "radio transmitter switch state (0=off, 1=on)");
3310 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "stats",
3311 CTLTYPE_OPAQUE | CTLFLAG_RD, sc, 0, iwi_sysctl_stats, "S",
3315 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "bluetooth",
3316 CTLFLAG_RW, &sc->bluetooth, 0, "bluetooth coexistence");
3318 sc->antenna = IWI_ANTENNA_AUTO;
3319 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "antenna",
3320 CTLFLAG_RW, &sc->antenna, 0, "antenna (0=auto)");
3326 * Different cards have different capabilities. Some have three
3327 * led's while others have only one. The linux ipw driver defines
3328 * led's for link state (associated or not), band (11a, 11g, 11b),
3329 * and for link activity. We use one led and vary the blink rate
3330 * according to the tx/rx traffic a la the ath driver.
3333 static __inline uint32_t
3334 iwi_toggle_event(uint32_t r)
3336 return r &~ (IWI_RST_STANDBY | IWI_RST_GATE_ODMA |
3337 IWI_RST_GATE_IDMA | IWI_RST_GATE_ADMA);
3341 iwi_read_event(struct iwi_softc *sc)
3343 return MEM_READ_4(sc, IWI_MEM_EEPROM_EVENT);
3347 iwi_write_event(struct iwi_softc *sc, uint32_t v)
3349 MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, v);
3353 iwi_led_done(void *arg)
3355 struct iwi_softc *sc = arg;
3357 sc->sc_blinking = 0;
3361 * Turn the activity LED off: flip the pin and then set a timer so no
3362 * update will happen for the specified duration.
3365 iwi_led_off(void *arg)
3367 struct iwi_softc *sc = arg;
3370 v = iwi_read_event(sc);
3371 v &= ~sc->sc_ledpin;
3372 iwi_write_event(sc, iwi_toggle_event(v));
3373 callout_reset(&sc->sc_ledtimer_callout, sc->sc_ledoff, iwi_led_done, sc);
3377 * Blink the LED according to the specified on/off times.
3380 iwi_led_blink(struct iwi_softc *sc, int on, int off)
3384 v = iwi_read_event(sc);
3386 iwi_write_event(sc, iwi_toggle_event(v));
3387 sc->sc_blinking = 1;
3388 sc->sc_ledoff = off;
3389 callout_reset(&sc->sc_ledtimer_callout, on, iwi_led_off, sc);
3393 iwi_led_event(struct iwi_softc *sc, int event)
3395 /* NB: on/off times from the Atheros NDIS driver, w/ permission */
3396 static const struct {
3397 u_int rate; /* tx/rx iwi rate */
3398 u_int16_t timeOn; /* LED on time (ms) */
3399 u_int16_t timeOff; /* LED off time (ms) */
3401 { IWI_RATE_OFDM54, 40, 10 },
3402 { IWI_RATE_OFDM48, 44, 11 },
3403 { IWI_RATE_OFDM36, 50, 13 },
3404 { IWI_RATE_OFDM24, 57, 14 },
3405 { IWI_RATE_OFDM18, 67, 16 },
3406 { IWI_RATE_OFDM12, 80, 20 },
3407 { IWI_RATE_DS11, 100, 25 },
3408 { IWI_RATE_OFDM9, 133, 34 },
3409 { IWI_RATE_OFDM6, 160, 40 },
3410 { IWI_RATE_DS5, 200, 50 },
3411 { 6, 240, 58 }, /* XXX 3Mb/s if it existed */
3412 { IWI_RATE_DS2, 267, 66 },
3413 { IWI_RATE_DS1, 400, 100 },
3414 { 0, 500, 130 }, /* unknown rate/polling */
3417 int j = 0; /* XXX silence compiler */
3419 sc->sc_ledevent = ticks; /* time of last event */
3420 if (sc->sc_blinking) /* don't interrupt active blink */
3424 j = NELEM(blinkrates)-1;
3427 /* read current transmission rate from adapter */
3428 txrate = CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE);
3429 if (blinkrates[sc->sc_txrix].rate != txrate) {
3430 for (j = 0; j < NELEM(blinkrates)-1; j++)
3431 if (blinkrates[j].rate == txrate)
3438 if (blinkrates[sc->sc_rxrix].rate != sc->sc_rxrate) {
3439 for (j = 0; j < NELEM(blinkrates)-1; j++)
3440 if (blinkrates[j].rate == sc->sc_rxrate)
3447 /* XXX beware of overflow */
3448 iwi_led_blink(sc, (blinkrates[j].timeOn * hz) / 1000,
3449 (blinkrates[j].timeOff * hz) / 1000);
3453 iwi_sysctl_softled(SYSCTL_HANDLER_ARGS)
3455 struct iwi_softc *sc = arg1;
3456 int softled = sc->sc_softled;
3459 error = sysctl_handle_int(oidp, &softled, 0, req);
3460 if (error || !req->newptr)
3462 softled = (softled != 0);
3463 if (softled != sc->sc_softled) {
3465 uint32_t v = iwi_read_event(sc);
3466 v &= ~sc->sc_ledpin;
3467 iwi_write_event(sc, iwi_toggle_event(v));
3469 sc->sc_softled = softled;
3475 iwi_ledattach(struct iwi_softc *sc)
3477 struct sysctl_ctx_list *ctx = &sc->sc_sysctl_ctx;
3478 struct sysctl_oid *tree = sc->sc_sysctl_tree;
3480 sc->sc_blinking = 0;
3481 sc->sc_ledstate = 1;
3482 sc->sc_ledidle = (2700*hz)/1000; /* 2.7sec */
3483 callout_init(&sc->sc_ledtimer_callout);
3485 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
3486 "softled", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
3487 iwi_sysctl_softled, "I", "enable/disable software LED support");
3488 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
3489 "ledpin", CTLFLAG_RW, &sc->sc_ledpin, 0,
3490 "pin setting to turn activity LED on");
3491 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
3492 "ledidle", CTLFLAG_RW, &sc->sc_ledidle, 0,
3493 "idle time for inactivity LED (ticks)");
3494 /* XXX for debugging */
3495 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
3496 "nictype", CTLFLAG_RD, &sc->sc_nictype, 0,
3497 "NIC type from EEPROM");
3499 sc->sc_ledpin = IWI_RST_LED_ACTIVITY;
3502 sc->sc_nictype = (iwi_read_prom_word(sc, IWI_EEPROM_NIC) >> 8) & 0xff;
3503 if (sc->sc_nictype == 1) {
3505 * NB: led's are reversed.
3507 sc->sc_ledpin = IWI_RST_LED_ASSOCIATED;
3512 iwi_scan_start(struct ieee80211com *ic)
3518 iwi_set_channel(struct ieee80211com *ic)
3520 struct ifnet *ifp = ic->ic_ifp;
3521 struct iwi_softc *sc = ifp->if_softc;
3522 if (sc->fw_state == IWI_FW_IDLE)
3523 iwi_setcurchan(sc, ic->ic_curchan->ic_ieee);
3527 iwi_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)
3529 struct ieee80211vap *vap = ss->ss_vap;
3530 struct ifnet *ifp = vap->iv_ic->ic_ifp;
3531 struct iwi_softc *sc = ifp->if_softc;
3533 if (iwi_scanchan(sc, maxdwell, 0))
3534 ieee80211_cancel_scan(vap);
3538 iwi_scan_mindwell(struct ieee80211_scan_state *ss)
3540 /* NB: don't try to abort scan; wait for firmware to finish */
3544 iwi_scan_end(struct ieee80211com *ic)
3546 struct ifnet *ifp = ic->ic_ifp;
3547 struct iwi_softc *sc = ifp->if_softc;
3549 sc->flags &= ~IWI_FLAG_CHANNEL_SCAN;
3550 /* NB: make sure we're still scanning */
3551 if (sc->fw_state == IWI_FW_SCANNING)
3552 iwi_cmd(sc, IWI_CMD_ABORT_SCAN, NULL, 0);