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 * __FBSDID("$FreeBSD: src/sys/dev/iwi/if_iwi.c,v 1.72 2009/07/10 15:28:33 rpaulo Exp $");
32 #include <sys/cdefs.h>
35 * Intel(R) PRO/Wireless 2200BG/2225BG/2915ABG driver
36 * http://www.intel.com/network/connectivity/products/wireless/prowireless_mobile.htm
39 #include <sys/param.h>
40 #include <sys/sysctl.h>
41 #include <sys/sockio.h>
43 #include <sys/kernel.h>
44 #include <sys/socket.h>
45 #include <sys/systm.h>
46 #include <sys/malloc.h>
48 #include <sys/mutex.h>
49 #include <sys/module.h>
51 #include <sys/endian.h>
53 #include <sys/mount.h>
54 #include <sys/namei.h>
55 #include <sys/linker.h>
56 #include <sys/firmware.h>
57 #include <sys/taskqueue.h>
58 #include <sys/devfs.h>
60 #include <sys/resource.h>
63 #include <bus/pci/pcireg.h>
64 #include <bus/pci/pcivar.h>
68 #include <net/if_arp.h>
69 #include <net/ethernet.h>
70 #include <net/if_dl.h>
71 #include <net/if_media.h>
72 #include <net/if_types.h>
73 #include <net/ifq_var.h>
75 #include <netproto/802_11/ieee80211_var.h>
76 #include <netproto/802_11/ieee80211_radiotap.h>
77 #include <netproto/802_11/ieee80211_input.h>
78 #include <netproto/802_11/ieee80211_regdomain.h>
80 #include <netinet/in.h>
81 #include <netinet/in_systm.h>
82 #include <netinet/in_var.h>
83 #include <netinet/ip.h>
84 #include <netinet/if_ether.h>
86 #include <dev/netif/iwi/if_iwireg.h>
87 #include <dev/netif/iwi/if_iwivar.h>
91 #define DPRINTF(x) do { if (iwi_debug > 0) kprintf x; } while (0)
92 #define DPRINTFN(n, x) do { if (iwi_debug >= (n)) kprintf x; } while (0)
94 SYSCTL_INT(_debug, OID_AUTO, iwi, CTLFLAG_RW, &iwi_debug, 0, "iwi debug level");
96 static const char *iwi_fw_states[] = {
97 "IDLE", /* IWI_FW_IDLE */
98 "LOADING", /* IWI_FW_LOADING */
99 "ASSOCIATING", /* IWI_FW_ASSOCIATING */
100 "DISASSOCIATING", /* IWI_FW_DISASSOCIATING */
101 "SCANNING", /* IWI_FW_SCANNING */
105 #define DPRINTFN(n, x)
108 MODULE_DEPEND(iwi, pci, 1, 1, 1);
109 MODULE_DEPEND(iwi, wlan, 1, 1, 1);
110 MODULE_DEPEND(iwi, firmware, 1, 1, 1);
124 static const struct iwi_ident iwi_ident_table[] = {
125 { 0x8086, 0x4220, "Intel(R) PRO/Wireless 2200BG" },
126 { 0x8086, 0x4221, "Intel(R) PRO/Wireless 2225BG" },
127 { 0x8086, 0x4223, "Intel(R) PRO/Wireless 2915ABG" },
128 { 0x8086, 0x4224, "Intel(R) PRO/Wireless 2915ABG" },
133 static struct ieee80211vap *iwi_vap_create(struct ieee80211com *,
134 const char name[IFNAMSIZ], int unit, int opmode, int flags,
135 const uint8_t bssid[IEEE80211_ADDR_LEN],
136 const uint8_t mac[IEEE80211_ADDR_LEN]);
137 static void iwi_vap_delete(struct ieee80211vap *);
138 static void iwi_dma_map_addr(void *, bus_dma_segment_t *, int, int);
139 static int iwi_alloc_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *,
141 static void iwi_reset_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *);
142 static void iwi_free_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *);
143 static int iwi_alloc_tx_ring(struct iwi_softc *, struct iwi_tx_ring *,
144 int, bus_addr_t, bus_addr_t);
145 static void iwi_reset_tx_ring(struct iwi_softc *, struct iwi_tx_ring *);
146 static void iwi_free_tx_ring(struct iwi_softc *, struct iwi_tx_ring *);
147 static int iwi_alloc_rx_ring(struct iwi_softc *, struct iwi_rx_ring *,
149 static void iwi_reset_rx_ring(struct iwi_softc *, struct iwi_rx_ring *);
150 static void iwi_free_rx_ring(struct iwi_softc *, struct iwi_rx_ring *);
151 static struct ieee80211_node *iwi_node_alloc(struct ieee80211vap *,
152 const uint8_t [IEEE80211_ADDR_LEN]);
153 static void iwi_node_free(struct ieee80211_node *);
154 static void iwi_media_status(struct ifnet *, struct ifmediareq *);
155 static int iwi_newstate(struct ieee80211vap *, enum ieee80211_state, int);
156 static void iwi_wme_init(struct iwi_softc *);
157 static int iwi_wme_setparams(struct iwi_softc *, struct ieee80211com *);
158 static void iwi_update_wme(void *, int);
159 static int iwi_wme_update(struct ieee80211com *);
160 static uint16_t iwi_read_prom_word(struct iwi_softc *, uint8_t);
161 static void iwi_frame_intr(struct iwi_softc *, struct iwi_rx_data *, int,
163 static void iwi_notification_intr(struct iwi_softc *, struct iwi_notif *);
164 static void iwi_rx_intr(struct iwi_softc *);
165 static void iwi_tx_intr(struct iwi_softc *, struct iwi_tx_ring *);
166 static void iwi_intr(void *);
167 static int iwi_cmd(struct iwi_softc *, uint8_t, void *, uint8_t);
168 static void iwi_write_ibssnode(struct iwi_softc *, const u_int8_t [], int);
169 static int iwi_tx_start(struct ifnet *, struct mbuf *,
170 struct ieee80211_node *, int);
171 static int iwi_raw_xmit(struct ieee80211_node *, struct mbuf *,
172 const struct ieee80211_bpf_params *);
173 static void iwi_start_locked(struct ifnet *);
174 static void iwi_start(struct ifnet *);
175 static void iwi_watchdog(void *);
176 static int iwi_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *ucred);
177 static void iwi_stop_master(struct iwi_softc *);
178 static int iwi_reset(struct iwi_softc *);
179 static int iwi_load_ucode(struct iwi_softc *, const struct iwi_fw *);
180 static int iwi_load_firmware(struct iwi_softc *, const struct iwi_fw *);
181 static void iwi_release_fw_dma(struct iwi_softc *sc);
182 static int iwi_config(struct iwi_softc *);
183 static int iwi_get_firmware(struct iwi_softc *, enum ieee80211_opmode);
184 static void iwi_put_firmware(struct iwi_softc *);
185 static int iwi_scanchan(struct iwi_softc *, unsigned long, int);
186 static void iwi_scan_start(struct ieee80211com *);
187 static void iwi_scan_end(struct ieee80211com *);
188 static void iwi_set_channel(struct ieee80211com *);
189 static void iwi_scan_curchan(struct ieee80211_scan_state *, unsigned long maxdwell);
190 static void iwi_scan_mindwell(struct ieee80211_scan_state *);
191 static int iwi_auth_and_assoc(struct iwi_softc *, struct ieee80211vap *);
192 static void iwi_disassoc(void *, int);
193 static int iwi_disassociate(struct iwi_softc *, int quiet);
194 static void iwi_init_locked(struct iwi_softc *);
195 static void iwi_init(void *);
196 static int iwi_init_fw_dma(struct iwi_softc *, int);
197 static void iwi_stop_locked(void *);
198 static void iwi_stop(struct iwi_softc *);
199 static void iwi_restart(void *, int);
200 static int iwi_getrfkill(struct iwi_softc *);
201 static void iwi_radio_on(void *, int);
202 static void iwi_radio_off(void *, int);
203 static void iwi_sysctlattach(struct iwi_softc *);
204 static void iwi_led_event(struct iwi_softc *, int);
205 static void iwi_ledattach(struct iwi_softc *);
207 static int iwi_probe(device_t);
208 static int iwi_attach(device_t);
209 static int iwi_detach(device_t);
210 static int iwi_shutdown(device_t);
211 static int iwi_suspend(device_t);
212 static int iwi_resume(device_t);
214 static device_method_t iwi_methods[] = {
215 /* Device interface */
216 DEVMETHOD(device_probe, iwi_probe),
217 DEVMETHOD(device_attach, iwi_attach),
218 DEVMETHOD(device_detach, iwi_detach),
219 DEVMETHOD(device_shutdown, iwi_shutdown),
220 DEVMETHOD(device_suspend, iwi_suspend),
221 DEVMETHOD(device_resume, iwi_resume),
226 static driver_t iwi_driver = {
229 sizeof (struct iwi_softc)
232 static devclass_t iwi_devclass;
234 DRIVER_MODULE(iwi, pci, iwi_driver, iwi_devclass, 0, 0);
236 static __inline uint8_t
237 MEM_READ_1(struct iwi_softc *sc, uint32_t addr)
239 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr);
240 return CSR_READ_1(sc, IWI_CSR_INDIRECT_DATA);
243 static __inline uint32_t
244 MEM_READ_4(struct iwi_softc *sc, uint32_t addr)
246 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr);
247 return CSR_READ_4(sc, IWI_CSR_INDIRECT_DATA);
251 iwi_probe(device_t dev)
253 const struct iwi_ident *ident;
255 for (ident = iwi_ident_table; ident->name != NULL; ident++) {
256 if (pci_get_vendor(dev) == ident->vendor &&
257 pci_get_device(dev) == ident->device) {
258 device_set_desc(dev, ident->name);
265 /* Base Address Register */
266 #define IWI_PCI_BAR0 0x10
269 iwi_attach(device_t dev)
271 struct iwi_softc *sc = device_get_softc(dev);
273 struct ieee80211com *ic;
277 uint8_t macaddr[IEEE80211_ADDR_LEN];
281 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
283 device_printf(dev, "can not if_alloc()\n");
290 devfs_clone_bitmap_init(&sc->sc_unr);
292 TASK_INIT(&sc->sc_radiontask, 0, iwi_radio_on, sc);
293 TASK_INIT(&sc->sc_radiofftask, 0, iwi_radio_off, sc);
294 TASK_INIT(&sc->sc_restarttask, 0, iwi_restart, sc);
295 TASK_INIT(&sc->sc_disassoctask, 0, iwi_disassoc, sc);
296 TASK_INIT(&sc->sc_wmetask, 0, iwi_update_wme, sc);
298 callout_init(&sc->sc_wdtimer);
299 callout_init(&sc->sc_rftimer);
301 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
302 device_printf(dev, "chip is in D%d power mode "
303 "-- setting to D0\n", pci_get_powerstate(dev));
304 pci_set_powerstate(dev, PCI_POWERSTATE_D0);
307 pci_write_config(dev, 0x41, 0, 1);
309 /* enable bus-mastering */
310 pci_enable_busmaster(dev);
312 sc->mem_rid = IWI_PCI_BAR0;
313 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid,
315 if (sc->mem == NULL) {
316 device_printf(dev, "could not allocate memory resource\n");
320 sc->sc_st = rman_get_bustag(sc->mem);
321 sc->sc_sh = rman_get_bushandle(sc->mem);
324 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
325 RF_ACTIVE | RF_SHAREABLE);
326 if (sc->irq == NULL) {
327 device_printf(dev, "could not allocate interrupt resource\n");
331 if (iwi_reset(sc) != 0) {
332 device_printf(dev, "could not reset adapter\n");
339 if (iwi_alloc_cmd_ring(sc, &sc->cmdq, IWI_CMD_RING_COUNT) != 0) {
340 device_printf(dev, "could not allocate Cmd ring\n");
344 for (i = 0; i < 4; i++) {
345 error = iwi_alloc_tx_ring(sc, &sc->txq[i], IWI_TX_RING_COUNT,
346 IWI_CSR_TX1_RIDX + i * 4,
347 IWI_CSR_TX1_WIDX + i * 4);
349 device_printf(dev, "could not allocate Tx ring %d\n",
355 if (iwi_alloc_rx_ring(sc, &sc->rxq, IWI_RX_RING_COUNT) != 0) {
356 device_printf(dev, "could not allocate Rx ring\n");
363 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
364 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
365 ifp->if_init = iwi_init;
366 ifp->if_ioctl = iwi_ioctl;
367 ifp->if_start = iwi_start;
368 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
369 ifq_set_ready(&ifp->if_snd);
372 ic->ic_opmode = IEEE80211_M_STA;
373 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
375 /* set device capabilities */
377 IEEE80211_C_STA /* station mode supported */
378 | IEEE80211_C_IBSS /* IBSS mode supported */
379 | IEEE80211_C_MONITOR /* monitor mode supported */
380 | IEEE80211_C_PMGT /* power save supported */
381 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
382 | IEEE80211_C_WPA /* 802.11i */
383 | IEEE80211_C_WME /* 802.11e */
385 | IEEE80211_C_BGSCAN /* capable of bg scanning */
389 /* read MAC address from EEPROM */
390 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 0);
391 macaddr[0] = val & 0xff;
392 macaddr[1] = val >> 8;
393 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 1);
394 macaddr[2] = val & 0xff;
395 macaddr[3] = val >> 8;
396 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 2);
397 macaddr[4] = val & 0xff;
398 macaddr[5] = val >> 8;
401 setbit(&bands, IEEE80211_MODE_11B);
402 setbit(&bands, IEEE80211_MODE_11G);
403 if (pci_get_device(dev) >= 0x4223)
404 setbit(&bands, IEEE80211_MODE_11A);
405 ieee80211_init_channels(ic, NULL, &bands);
407 ieee80211_ifattach(ic, macaddr);
408 /* override default methods */
409 ic->ic_node_alloc = iwi_node_alloc;
410 sc->sc_node_free = ic->ic_node_free;
411 ic->ic_node_free = iwi_node_free;
412 ic->ic_raw_xmit = iwi_raw_xmit;
413 ic->ic_scan_start = iwi_scan_start;
414 ic->ic_scan_end = iwi_scan_end;
415 ic->ic_set_channel = iwi_set_channel;
416 ic->ic_scan_curchan = iwi_scan_curchan;
417 ic->ic_scan_mindwell = iwi_scan_mindwell;
418 ic->ic_wme.wme_update = iwi_wme_update;
420 ic->ic_vap_create = iwi_vap_create;
421 ic->ic_vap_delete = iwi_vap_delete;
423 ieee80211_radiotap_attach(ic,
424 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
425 IWI_TX_RADIOTAP_PRESENT,
426 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
427 IWI_RX_RADIOTAP_PRESENT);
429 iwi_sysctlattach(sc);
433 * Hook our interrupt after all initialization is complete.
435 error = bus_setup_intr(dev, sc->irq, INTR_MPSAFE,
436 iwi_intr, sc, &sc->sc_ih, NULL);
438 device_printf(dev, "could not set up interrupt\n");
443 ieee80211_announce(ic);
453 iwi_detach(device_t dev)
455 struct iwi_softc *sc = device_get_softc(dev);
456 struct ifnet *ifp = sc->sc_ifp;
457 struct ieee80211com *ic = ifp->if_l2com;
459 /* NB: do early to drain any pending tasks */
460 ieee80211_draintask(ic, &sc->sc_radiontask);
461 ieee80211_draintask(ic, &sc->sc_radiofftask);
462 ieee80211_draintask(ic, &sc->sc_restarttask);
463 ieee80211_draintask(ic, &sc->sc_disassoctask);
467 ieee80211_ifdetach(ic);
469 iwi_put_firmware(sc);
470 iwi_release_fw_dma(sc);
472 iwi_free_cmd_ring(sc, &sc->cmdq);
473 iwi_free_tx_ring(sc, &sc->txq[0]);
474 iwi_free_tx_ring(sc, &sc->txq[1]);
475 iwi_free_tx_ring(sc, &sc->txq[2]);
476 iwi_free_tx_ring(sc, &sc->txq[3]);
477 iwi_free_rx_ring(sc, &sc->rxq);
479 bus_teardown_intr(dev, sc->irq, sc->sc_ih);
480 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
482 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
484 devfs_clone_bitmap_uninit(&sc->sc_unr);
486 if (sc->sc_sysctl_tree != NULL)
487 sysctl_ctx_free(&sc->sc_sysctl_ctx);
489 IWI_LOCK_DESTROY(sc);
496 static struct ieee80211vap *
497 iwi_vap_create(struct ieee80211com *ic,
498 const char name[IFNAMSIZ], int unit, int opmode, int flags,
499 const uint8_t bssid[IEEE80211_ADDR_LEN],
500 const uint8_t mac[IEEE80211_ADDR_LEN])
502 struct ifnet *ifp = ic->ic_ifp;
503 struct iwi_softc *sc = ifp->if_softc;
505 struct ieee80211vap *vap;
508 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
511 * Get firmware image (and possibly dma memory) on mode change.
513 if (iwi_get_firmware(sc, opmode))
515 /* allocate DMA memory for mapping firmware image */
517 if (sc->fw_boot.size > i)
518 i = sc->fw_boot.size;
519 /* XXX do we dma the ucode as well ? */
520 if (sc->fw_uc.size > i)
522 if (iwi_init_fw_dma(sc, i))
525 ivp = (struct iwi_vap *) kmalloc(sizeof(struct iwi_vap),
526 M_80211_VAP, M_WAITOK | M_ZERO);
530 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
531 /* override the default, the setting comes from the linux driver */
532 vap->iv_bmissthreshold = 24;
533 /* override with driver methods */
534 ivp->iwi_newstate = vap->iv_newstate;
535 vap->iv_newstate = iwi_newstate;
538 ieee80211_vap_attach(vap, ieee80211_media_change, iwi_media_status);
539 ic->ic_opmode = opmode;
544 iwi_vap_delete(struct ieee80211vap *vap)
546 struct iwi_vap *ivp = IWI_VAP(vap);
548 ieee80211_vap_detach(vap);
549 kfree(ivp, M_80211_VAP);
553 iwi_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error)
558 KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
560 *(bus_addr_t *)arg = segs[0].ds_addr;
564 iwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring, int count)
570 ring->cur = ring->next = 0;
572 error = bus_dma_tag_create(NULL, 4, 0,
573 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
574 count * IWI_CMD_DESC_SIZE, 1, count * IWI_CMD_DESC_SIZE,
575 0 , &ring->desc_dmat);
577 device_printf(sc->sc_dev, "could not create desc DMA tag\n");
581 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc,
582 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map);
584 device_printf(sc->sc_dev, "could not allocate DMA memory\n");
588 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc,
589 count * IWI_CMD_DESC_SIZE, iwi_dma_map_addr, &ring->physaddr, 0);
591 device_printf(sc->sc_dev, "could not load desc DMA map\n");
597 fail: iwi_free_cmd_ring(sc, ring);
602 iwi_reset_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring)
605 ring->cur = ring->next = 0;
609 iwi_free_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring)
611 if (ring->desc != NULL) {
612 bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
613 BUS_DMASYNC_POSTWRITE);
614 bus_dmamap_unload(ring->desc_dmat, ring->desc_map);
615 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map);
618 if (ring->desc_dmat != NULL)
619 bus_dma_tag_destroy(ring->desc_dmat);
623 iwi_alloc_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring, int count,
624 bus_addr_t csr_ridx, bus_addr_t csr_widx)
630 ring->cur = ring->next = 0;
631 ring->csr_ridx = csr_ridx;
632 ring->csr_widx = csr_widx;
634 error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT,
635 BUS_SPACE_MAXADDR, NULL, NULL, count * IWI_TX_DESC_SIZE, 1,
636 count * IWI_TX_DESC_SIZE, 0, &ring->desc_dmat);
638 device_printf(sc->sc_dev, "could not create desc DMA tag\n");
642 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc,
643 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map);
645 device_printf(sc->sc_dev, "could not allocate DMA memory\n");
649 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc,
650 count * IWI_TX_DESC_SIZE, iwi_dma_map_addr, &ring->physaddr, 0);
652 device_printf(sc->sc_dev, "could not load desc DMA map\n");
656 ring->data = kmalloc(count * sizeof (struct iwi_tx_data), M_DEVBUF,
658 if (ring->data == NULL) {
659 device_printf(sc->sc_dev, "could not allocate soft data\n");
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,
766 if (ring->data == NULL) {
767 device_printf(sc->sc_dev, "could not allocate soft data\n");
772 error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT,
773 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1, MCLBYTES,
774 0, &ring->data_dmat);
776 device_printf(sc->sc_dev, "could not create data DMA tag\n");
780 for (i = 0; i < count; i++) {
781 data = &ring->data[i];
783 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
785 device_printf(sc->sc_dev, "could not create DMA map\n");
789 data->m = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
790 if (data->m == NULL) {
791 device_printf(sc->sc_dev,
792 "could not allocate rx mbuf\n");
797 error = bus_dmamap_load(ring->data_dmat, data->map,
798 mtod(data->m, void *), MCLBYTES, iwi_dma_map_addr,
801 device_printf(sc->sc_dev,
802 "could not load rx buf DMA map");
806 data->reg = IWI_CSR_RX_BASE + i * 4;
811 fail: iwi_free_rx_ring(sc, ring);
816 iwi_reset_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring)
822 iwi_free_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring)
824 struct iwi_rx_data *data;
827 if (ring->data != NULL) {
828 for (i = 0; i < ring->count; i++) {
829 data = &ring->data[i];
831 if (data->m != NULL) {
832 bus_dmamap_sync(ring->data_dmat, data->map,
833 BUS_DMASYNC_POSTREAD);
834 bus_dmamap_unload(ring->data_dmat, data->map);
838 if (data->map != NULL)
839 bus_dmamap_destroy(ring->data_dmat, data->map);
842 kfree(ring->data, M_DEVBUF);
845 if (ring->data_dmat != NULL)
846 bus_dma_tag_destroy(ring->data_dmat);
850 iwi_shutdown(device_t dev)
852 struct iwi_softc *sc = device_get_softc(dev);
855 iwi_put_firmware(sc); /* ??? XXX */
861 iwi_suspend(device_t dev)
863 struct iwi_softc *sc = device_get_softc(dev);
871 iwi_resume(device_t dev)
873 struct iwi_softc *sc = device_get_softc(dev);
874 struct ifnet *ifp = sc->sc_ifp;
876 pci_write_config(dev, 0x41, 0, 1);
878 if (ifp->if_flags & IFF_UP)
884 static struct ieee80211_node *
885 iwi_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN])
889 in = kmalloc(sizeof (struct iwi_node), M_80211_NODE, M_NOWAIT | M_ZERO);
892 /* XXX assign sta table entry for adhoc */
899 iwi_node_free(struct ieee80211_node *ni)
901 struct ieee80211com *ic = ni->ni_ic;
902 struct iwi_softc *sc = ic->ic_ifp->if_softc;
903 struct iwi_node *in = (struct iwi_node *)ni;
905 if (in->in_station != -1) {
906 DPRINTF(("%s mac %6D station %u\n", __func__,
907 ni->ni_macaddr, ":", in->in_station));
908 devfs_clone_bitmap_put(&sc->sc_unr, in->in_station);
911 sc->sc_node_free(ni);
915 * Convert h/w rate code to IEEE rate code.
918 iwi_cvtrate(int iwirate)
921 case IWI_RATE_DS1: return 2;
922 case IWI_RATE_DS2: return 4;
923 case IWI_RATE_DS5: return 11;
924 case IWI_RATE_DS11: return 22;
925 case IWI_RATE_OFDM6: return 12;
926 case IWI_RATE_OFDM9: return 18;
927 case IWI_RATE_OFDM12: return 24;
928 case IWI_RATE_OFDM18: return 36;
929 case IWI_RATE_OFDM24: return 48;
930 case IWI_RATE_OFDM36: return 72;
931 case IWI_RATE_OFDM48: return 96;
932 case IWI_RATE_OFDM54: return 108;
938 * The firmware automatically adapts the transmit speed. We report its current
942 iwi_media_status(struct ifnet *ifp, struct ifmediareq *imr)
944 struct ieee80211vap *vap = ifp->if_softc;
945 struct ieee80211com *ic = vap->iv_ic;
946 struct iwi_softc *sc = ic->ic_ifp->if_softc;
948 /* read current transmission rate from adapter */
949 vap->iv_bss->ni_txrate =
950 iwi_cvtrate(CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE));
951 ieee80211_media_status(ifp, imr);
955 iwi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
957 struct iwi_vap *ivp = IWI_VAP(vap);
958 struct ieee80211com *ic = vap->iv_ic;
959 struct ifnet *ifp = ic->ic_ifp;
960 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));
967 IEEE80211_UNLOCK(ic);
970 case IEEE80211_S_INIT:
972 * NB: don't try to do this if iwi_stop_master has
973 * shutdown the firmware and disabled interrupts.
975 if (vap->iv_state == IEEE80211_S_RUN &&
976 (sc->flags & IWI_FLAG_FW_INITED))
977 iwi_disassociate(sc, 0);
979 case IEEE80211_S_AUTH:
980 iwi_auth_and_assoc(sc, vap);
982 case IEEE80211_S_RUN:
983 if (vap->iv_opmode == IEEE80211_M_IBSS &&
984 vap->iv_state == IEEE80211_S_SCAN) {
986 * XXX when joining an ibss network we are called
987 * with a SCAN -> RUN transition on scan complete.
988 * Use that to call iwi_auth_and_assoc. On completing
989 * the join we are then called again with an
990 * AUTH -> RUN transition and we want to do nothing.
991 * This is all totally bogus and needs to be redone.
993 iwi_auth_and_assoc(sc, vap);
996 case IEEE80211_S_ASSOC:
998 * If we are transitioning from AUTH then just wait
999 * for the ASSOC status to come back from the firmware.
1000 * Otherwise we need to issue the association request.
1002 if (vap->iv_state == IEEE80211_S_AUTH)
1004 iwi_auth_and_assoc(sc, vap);
1011 return ivp->iwi_newstate(vap, nstate, arg);
1015 * WME parameters coming from IEEE 802.11e specification. These values are
1016 * already declared in ieee80211_proto.c, but they are static so they can't
1019 static const struct wmeParams iwi_wme_cck_params[WME_NUM_AC] = {
1020 { 0, 3, 5, 7, 0 }, /* WME_AC_BE */
1021 { 0, 3, 5, 10, 0 }, /* WME_AC_BK */
1022 { 0, 2, 4, 5, 188 }, /* WME_AC_VI */
1023 { 0, 2, 3, 4, 102 } /* WME_AC_VO */
1026 static const struct wmeParams iwi_wme_ofdm_params[WME_NUM_AC] = {
1027 { 0, 3, 4, 6, 0 }, /* WME_AC_BE */
1028 { 0, 3, 4, 10, 0 }, /* WME_AC_BK */
1029 { 0, 2, 3, 4, 94 }, /* WME_AC_VI */
1030 { 0, 2, 2, 3, 47 } /* WME_AC_VO */
1032 #define IWI_EXP2(v) htole16((1 << (v)) - 1)
1033 #define IWI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v))
1036 iwi_wme_init(struct iwi_softc *sc)
1038 const struct wmeParams *wmep;
1041 memset(sc->wme, 0, sizeof sc->wme);
1042 for (ac = 0; ac < WME_NUM_AC; ac++) {
1043 /* set WME values for CCK modulation */
1044 wmep = &iwi_wme_cck_params[ac];
1045 sc->wme[1].aifsn[ac] = wmep->wmep_aifsn;
1046 sc->wme[1].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin);
1047 sc->wme[1].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax);
1048 sc->wme[1].burst[ac] = IWI_USEC(wmep->wmep_txopLimit);
1049 sc->wme[1].acm[ac] = wmep->wmep_acm;
1051 /* set WME values for OFDM modulation */
1052 wmep = &iwi_wme_ofdm_params[ac];
1053 sc->wme[2].aifsn[ac] = wmep->wmep_aifsn;
1054 sc->wme[2].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin);
1055 sc->wme[2].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax);
1056 sc->wme[2].burst[ac] = IWI_USEC(wmep->wmep_txopLimit);
1057 sc->wme[2].acm[ac] = wmep->wmep_acm;
1062 iwi_wme_setparams(struct iwi_softc *sc, struct ieee80211com *ic)
1064 const struct wmeParams *wmep;
1067 for (ac = 0; ac < WME_NUM_AC; ac++) {
1068 /* set WME values for current operating mode */
1069 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac];
1070 sc->wme[0].aifsn[ac] = wmep->wmep_aifsn;
1071 sc->wme[0].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin);
1072 sc->wme[0].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax);
1073 sc->wme[0].burst[ac] = IWI_USEC(wmep->wmep_txopLimit);
1074 sc->wme[0].acm[ac] = wmep->wmep_acm;
1077 DPRINTF(("Setting WME parameters\n"));
1078 return iwi_cmd(sc, IWI_CMD_SET_WME_PARAMS, sc->wme, sizeof sc->wme);
1084 iwi_update_wme(void *arg, int npending)
1086 struct ieee80211com *ic = arg;
1087 struct iwi_softc *sc = ic->ic_ifp->if_softc;
1091 (void) iwi_wme_setparams(sc, ic);
1096 iwi_wme_update(struct ieee80211com *ic)
1098 struct iwi_softc *sc = ic->ic_ifp->if_softc;
1099 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1102 * We may be called to update the WME parameters in
1103 * the adapter at various places. If we're already
1104 * associated then initiate the request immediately;
1105 * otherwise we assume the params will get sent down
1106 * to the adapter as part of the work iwi_auth_and_assoc
1109 if (vap->iv_state == IEEE80211_S_RUN)
1110 ieee80211_runtask(ic, &sc->sc_wmetask);
1115 iwi_wme_setie(struct iwi_softc *sc)
1117 struct ieee80211_wme_info wme;
1119 memset(&wme, 0, sizeof wme);
1120 wme.wme_id = IEEE80211_ELEMID_VENDOR;
1121 wme.wme_len = sizeof (struct ieee80211_wme_info) - 2;
1122 wme.wme_oui[0] = 0x00;
1123 wme.wme_oui[1] = 0x50;
1124 wme.wme_oui[2] = 0xf2;
1125 wme.wme_type = WME_OUI_TYPE;
1126 wme.wme_subtype = WME_INFO_OUI_SUBTYPE;
1127 wme.wme_version = WME_VERSION;
1130 DPRINTF(("Setting WME IE (len=%u)\n", wme.wme_len));
1131 return iwi_cmd(sc, IWI_CMD_SET_WMEIE, &wme, sizeof wme);
1135 * Read 16 bits at address 'addr' from the serial EEPROM.
1138 iwi_read_prom_word(struct iwi_softc *sc, uint8_t addr)
1144 /* clock C once before the first command */
1145 IWI_EEPROM_CTL(sc, 0);
1146 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1147 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C);
1148 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1150 /* write start bit (1) */
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);
1154 /* write READ opcode (10) */
1155 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D);
1156 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C);
1157 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1158 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C);
1160 /* write address A7-A0 */
1161 for (n = 7; n >= 0; n--) {
1162 IWI_EEPROM_CTL(sc, IWI_EEPROM_S |
1163 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D));
1164 IWI_EEPROM_CTL(sc, IWI_EEPROM_S |
1165 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D) | IWI_EEPROM_C);
1168 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1170 /* read data Q15-Q0 */
1172 for (n = 15; n >= 0; n--) {
1173 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C);
1174 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1175 tmp = MEM_READ_4(sc, IWI_MEM_EEPROM_CTL);
1176 val |= ((tmp & IWI_EEPROM_Q) >> IWI_EEPROM_SHIFT_Q) << n;
1179 IWI_EEPROM_CTL(sc, 0);
1181 /* clear Chip Select and clock C */
1182 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1183 IWI_EEPROM_CTL(sc, 0);
1184 IWI_EEPROM_CTL(sc, IWI_EEPROM_C);
1190 iwi_setcurchan(struct iwi_softc *sc, int chan)
1192 struct ifnet *ifp = sc->sc_ifp;
1193 struct ieee80211com *ic = ifp->if_l2com;
1196 ieee80211_radiotap_chan_change(ic);
1200 iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i,
1201 struct iwi_frame *frame)
1203 struct ifnet *ifp = sc->sc_ifp;
1204 struct ieee80211com *ic = ifp->if_l2com;
1205 struct mbuf *mnew, *m;
1206 struct ieee80211_node *ni;
1207 int type, error, framelen;
1211 framelen = le16toh(frame->len);
1212 if (framelen < IEEE80211_MIN_LEN || framelen > MCLBYTES) {
1214 * XXX >MCLBYTES is bogus as it means the h/w dma'd
1215 * out of bounds; need to figure out how to limit
1216 * frame size in the firmware
1220 ("drop rx frame len=%u chan=%u rssi=%u rssi_dbm=%u\n",
1221 le16toh(frame->len), frame->chan, frame->rssi,
1226 DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u rssi_dbm=%u\n",
1227 le16toh(frame->len), frame->chan, frame->rssi, frame->rssi_dbm));
1229 if (frame->chan != sc->curchan)
1230 iwi_setcurchan(sc, frame->chan);
1233 * Try to allocate a new mbuf for this ring element and load it before
1234 * processing the current mbuf. If the ring element cannot be loaded,
1235 * drop the received packet and reuse the old mbuf. In the unlikely
1236 * case that the old mbuf can't be reloaded either, explicitly panic.
1238 mnew = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
1244 bus_dmamap_unload(sc->rxq.data_dmat, data->map);
1246 error = bus_dmamap_load(sc->rxq.data_dmat, data->map,
1247 mtod(mnew, void *), MCLBYTES, iwi_dma_map_addr, &data->physaddr,
1252 /* try to reload the old mbuf */
1253 error = bus_dmamap_load(sc->rxq.data_dmat, data->map,
1254 mtod(data->m, void *), MCLBYTES, iwi_dma_map_addr,
1255 &data->physaddr, 0);
1257 /* very unlikely that it will fail... */
1258 panic("%s: could not load old rx mbuf",
1259 device_get_name(sc->sc_dev));
1266 * New mbuf successfully loaded, update Rx ring and continue
1271 CSR_WRITE_4(sc, data->reg, data->physaddr);
1274 m->m_pkthdr.rcvif = ifp;
1275 m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) +
1276 sizeof (struct iwi_frame) + framelen;
1278 m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame));
1280 rssi = frame->rssi_dbm;
1282 if (ieee80211_radiotap_active(ic)) {
1283 struct iwi_rx_radiotap_header *tap = &sc->sc_rxtap;
1286 tap->wr_antsignal = rssi;
1287 tap->wr_antnoise = nf;
1288 tap->wr_rate = iwi_cvtrate(frame->rate);
1289 tap->wr_antenna = frame->antenna;
1293 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *));
1295 type = ieee80211_input(ni, m, rssi, nf);
1296 ieee80211_free_node(ni);
1298 type = ieee80211_input_all(ic, m, rssi, nf);
1301 if (sc->sc_softled) {
1303 * Blink for any data frame. Otherwise do a
1304 * heartbeat-style blink when idle. The latter
1305 * is mainly for station mode where we depend on
1306 * periodic beacon frames to trigger the poll event.
1308 if (type == IEEE80211_FC0_TYPE_DATA) {
1309 sc->sc_rxrate = frame->rate;
1310 iwi_led_event(sc, IWI_LED_RX);
1311 } else if (ticks - sc->sc_ledevent >= sc->sc_ledidle)
1312 iwi_led_event(sc, IWI_LED_POLL);
1317 * Check for an association response frame to see if QoS
1318 * has been negotiated. We parse just enough to figure
1319 * out if we're supposed to use QoS. The proper solution
1320 * is to pass the frame up so ieee80211_input can do the
1321 * work but that's made hard by how things currently are
1322 * done in the driver.
1325 iwi_checkforqos(struct ieee80211vap *vap,
1326 const struct ieee80211_frame *wh, int len)
1328 #define SUBTYPE(wh) ((wh)->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK)
1329 const uint8_t *frm, *efrm, *wme;
1330 struct ieee80211_node *ni;
1331 uint16_t capinfo, status, associd;
1333 /* NB: +8 for capinfo, status, associd, and first ie */
1334 if (!(sizeof(*wh)+8 < len && len < IEEE80211_MAX_LEN) ||
1335 SUBTYPE(wh) != IEEE80211_FC0_SUBTYPE_ASSOC_RESP)
1338 * asresp frame format
1339 * [2] capability information
1341 * [2] association ID
1342 * [tlv] supported rates
1343 * [tlv] extended supported rates
1346 frm = (const uint8_t *)&wh[1];
1347 efrm = ((const uint8_t *) wh) + len;
1349 capinfo = le16toh(*(const uint16_t *)frm);
1351 status = le16toh(*(const uint16_t *)frm);
1353 associd = le16toh(*(const uint16_t *)frm);
1357 while (frm < efrm) {
1358 IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1], return);
1360 case IEEE80211_ELEMID_VENDOR:
1369 ni->ni_capinfo = capinfo;
1370 ni->ni_associd = associd;
1372 ni->ni_flags |= IEEE80211_NODE_QOS;
1374 ni->ni_flags &= ~IEEE80211_NODE_QOS;
1379 * Task queue callbacks for iwi_notification_intr used to avoid LOR's.
1383 iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif)
1385 struct ifnet *ifp = sc->sc_ifp;
1386 struct ieee80211com *ic = ifp->if_l2com;
1387 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1388 struct iwi_notif_scan_channel *chan;
1389 struct iwi_notif_scan_complete *scan;
1390 struct iwi_notif_authentication *auth;
1391 struct iwi_notif_association *assoc;
1392 struct iwi_notif_beacon_state *beacon;
1394 switch (notif->type) {
1395 case IWI_NOTIF_TYPE_SCAN_CHANNEL:
1396 chan = (struct iwi_notif_scan_channel *)(notif + 1);
1398 DPRINTFN(3, ("Scan of channel %u complete (%u)\n",
1399 ieee80211_ieee2mhz(chan->nchan, 0), chan->nchan));
1401 /* Reset the timer, the scan is still going */
1402 sc->sc_state_timer = 3;
1405 case IWI_NOTIF_TYPE_SCAN_COMPLETE:
1406 scan = (struct iwi_notif_scan_complete *)(notif + 1);
1408 DPRINTFN(2, ("Scan completed (%u, %u)\n", scan->nchan,
1411 IWI_STATE_END(sc, IWI_FW_SCANNING);
1413 if (scan->status == IWI_SCAN_COMPLETED) {
1414 /* NB: don't need to defer, net80211 does it for us */
1415 ieee80211_scan_next(vap);
1419 case IWI_NOTIF_TYPE_AUTHENTICATION:
1420 auth = (struct iwi_notif_authentication *)(notif + 1);
1421 switch (auth->state) {
1422 case IWI_AUTH_SUCCESS:
1423 DPRINTFN(2, ("Authentication succeeeded\n"));
1424 ieee80211_new_state(vap, IEEE80211_S_ASSOC, -1);
1428 * These are delivered as an unsolicited deauth
1429 * (e.g. due to inactivity) or in response to an
1430 * associate request.
1432 sc->flags &= ~IWI_FLAG_ASSOCIATED;
1433 if (vap->iv_state != IEEE80211_S_RUN) {
1434 DPRINTFN(2, ("Authentication failed\n"));
1435 vap->iv_stats.is_rx_auth_fail++;
1436 IWI_STATE_END(sc, IWI_FW_ASSOCIATING);
1438 DPRINTFN(2, ("Deauthenticated\n"));
1439 vap->iv_stats.is_rx_deauth++;
1441 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1);
1443 case IWI_AUTH_SENT_1:
1444 case IWI_AUTH_RECV_2:
1445 case IWI_AUTH_SEQ1_PASS:
1447 case IWI_AUTH_SEQ1_FAIL:
1448 DPRINTFN(2, ("Initial authentication handshake failed; "
1449 "you probably need shared key\n"));
1450 vap->iv_stats.is_rx_auth_fail++;
1451 IWI_STATE_END(sc, IWI_FW_ASSOCIATING);
1452 /* XXX retry shared key when in auto */
1455 device_printf(sc->sc_dev,
1456 "unknown authentication state %u\n", auth->state);
1461 case IWI_NOTIF_TYPE_ASSOCIATION:
1462 assoc = (struct iwi_notif_association *)(notif + 1);
1463 switch (assoc->state) {
1464 case IWI_AUTH_SUCCESS:
1465 /* re-association, do nothing */
1467 case IWI_ASSOC_SUCCESS:
1468 DPRINTFN(2, ("Association succeeded\n"));
1469 sc->flags |= IWI_FLAG_ASSOCIATED;
1470 IWI_STATE_END(sc, IWI_FW_ASSOCIATING);
1471 iwi_checkforqos(vap,
1472 (const struct ieee80211_frame *)(assoc+1),
1473 le16toh(notif->len) - sizeof(*assoc));
1474 ieee80211_new_state(vap, IEEE80211_S_RUN, -1);
1476 case IWI_ASSOC_INIT:
1477 sc->flags &= ~IWI_FLAG_ASSOCIATED;
1478 switch (sc->fw_state) {
1479 case IWI_FW_ASSOCIATING:
1480 DPRINTFN(2, ("Association failed\n"));
1481 IWI_STATE_END(sc, IWI_FW_ASSOCIATING);
1482 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1);
1485 case IWI_FW_DISASSOCIATING:
1486 DPRINTFN(2, ("Dissassociated\n"));
1487 IWI_STATE_END(sc, IWI_FW_DISASSOCIATING);
1488 vap->iv_stats.is_rx_disassoc++;
1489 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1);
1494 device_printf(sc->sc_dev,
1495 "unknown association state %u\n", assoc->state);
1500 case IWI_NOTIF_TYPE_BEACON:
1501 /* XXX check struct length */
1502 beacon = (struct iwi_notif_beacon_state *)(notif + 1);
1504 DPRINTFN(5, ("Beacon state (%u, %u)\n",
1505 beacon->state, le32toh(beacon->number)));
1507 if (beacon->state == IWI_BEACON_MISS) {
1509 * The firmware notifies us of every beacon miss
1510 * so we need to track the count against the
1511 * configured threshold before notifying the
1513 * XXX try to roam, drop assoc only on much higher count
1515 if (le32toh(beacon->number) >= vap->iv_bmissthreshold) {
1516 DPRINTF(("Beacon miss: %u >= %u\n",
1517 le32toh(beacon->number),
1518 vap->iv_bmissthreshold));
1519 vap->iv_stats.is_beacon_miss++;
1521 * It's pointless to notify the 802.11 layer
1522 * as it'll try to send a probe request (which
1523 * we'll discard) and then timeout and drop us
1524 * into scan state. Instead tell the firmware
1525 * to disassociate and then on completion we'll
1526 * kick the state machine to scan.
1528 ieee80211_runtask(ic, &sc->sc_disassoctask);
1533 case IWI_NOTIF_TYPE_CALIBRATION:
1534 case IWI_NOTIF_TYPE_NOISE:
1535 case IWI_NOTIF_TYPE_LINK_QUALITY:
1536 DPRINTFN(5, ("Notification (%u)\n", notif->type));
1540 DPRINTF(("unknown notification type %u flags 0x%x len %u\n",
1541 notif->type, notif->flags, le16toh(notif->len)));
1547 iwi_rx_intr(struct iwi_softc *sc)
1549 struct iwi_rx_data *data;
1550 struct iwi_hdr *hdr;
1553 hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX);
1555 for (; sc->rxq.cur != hw;) {
1556 data = &sc->rxq.data[sc->rxq.cur];
1558 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
1559 BUS_DMASYNC_POSTREAD);
1561 hdr = mtod(data->m, struct iwi_hdr *);
1563 switch (hdr->type) {
1564 case IWI_HDR_TYPE_FRAME:
1565 iwi_frame_intr(sc, data, sc->rxq.cur,
1566 (struct iwi_frame *)(hdr + 1));
1569 case IWI_HDR_TYPE_NOTIF:
1570 iwi_notification_intr(sc,
1571 (struct iwi_notif *)(hdr + 1));
1575 device_printf(sc->sc_dev, "unknown hdr type %u\n",
1579 DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur));
1581 sc->rxq.cur = (sc->rxq.cur + 1) % IWI_RX_RING_COUNT;
1584 /* tell the firmware what we have processed */
1585 hw = (hw == 0) ? IWI_RX_RING_COUNT - 1 : hw - 1;
1586 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw);
1590 iwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq)
1592 struct ifnet *ifp = sc->sc_ifp;
1593 struct iwi_tx_data *data;
1596 hw = CSR_READ_4(sc, txq->csr_ridx);
1598 for (; txq->next != hw;) {
1599 data = &txq->data[txq->next];
1601 bus_dmamap_sync(txq->data_dmat, data->map,
1602 BUS_DMASYNC_POSTWRITE);
1603 bus_dmamap_unload(txq->data_dmat, data->map);
1604 if (data->m->m_flags & M_TXCB)
1605 ieee80211_process_callback(data->ni, data->m, 0/*XXX*/);
1608 ieee80211_free_node(data->ni);
1611 DPRINTFN(15, ("tx done idx=%u\n", txq->next));
1616 txq->next = (txq->next + 1) % IWI_TX_RING_COUNT;
1619 sc->sc_tx_timer = 0;
1620 ifp->if_flags &= ~IFF_OACTIVE;
1623 iwi_led_event(sc, IWI_LED_TX);
1625 iwi_start_locked(ifp);
1629 iwi_fatal_error_intr(struct iwi_softc *sc)
1631 struct ifnet *ifp = sc->sc_ifp;
1632 struct ieee80211com *ic = ifp->if_l2com;
1633 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1635 device_printf(sc->sc_dev, "firmware error\n");
1637 ieee80211_cancel_scan(vap);
1638 ieee80211_runtask(ic, &sc->sc_restarttask);
1640 sc->flags &= ~IWI_FLAG_BUSY;
1641 sc->sc_busy_timer = 0;
1646 iwi_radio_off_intr(struct iwi_softc *sc)
1648 struct ifnet *ifp = sc->sc_ifp;
1649 struct ieee80211com *ic = ifp->if_l2com;
1651 ieee80211_runtask(ic, &sc->sc_radiofftask);
1657 struct iwi_softc *sc = arg;
1663 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) {
1668 /* acknowledge interrupts */
1669 CSR_WRITE_4(sc, IWI_CSR_INTR, r);
1671 if (r & IWI_INTR_FATAL_ERROR) {
1672 iwi_fatal_error_intr(sc);
1676 if (r & IWI_INTR_FW_INITED) {
1677 if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR)))
1681 if (r & IWI_INTR_RADIO_OFF)
1682 iwi_radio_off_intr(sc);
1684 if (r & IWI_INTR_CMD_DONE) {
1685 sc->flags &= ~IWI_FLAG_BUSY;
1686 sc->sc_busy_timer = 0;
1690 if (r & IWI_INTR_TX1_DONE)
1691 iwi_tx_intr(sc, &sc->txq[0]);
1693 if (r & IWI_INTR_TX2_DONE)
1694 iwi_tx_intr(sc, &sc->txq[1]);
1696 if (r & IWI_INTR_TX3_DONE)
1697 iwi_tx_intr(sc, &sc->txq[2]);
1699 if (r & IWI_INTR_TX4_DONE)
1700 iwi_tx_intr(sc, &sc->txq[3]);
1702 if (r & IWI_INTR_RX_DONE)
1705 if (r & IWI_INTR_PARITY_ERROR) {
1706 /* XXX rate-limit */
1707 device_printf(sc->sc_dev, "parity error\n");
1714 iwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len)
1716 struct iwi_cmd_desc *desc;
1718 IWI_LOCK_ASSERT(sc);
1720 if (sc->flags & IWI_FLAG_BUSY) {
1721 device_printf(sc->sc_dev, "%s: cmd %d not sent, busy\n",
1726 sc->flags |= IWI_FLAG_BUSY;
1727 sc->sc_busy_timer = 2;
1729 desc = &sc->cmdq.desc[sc->cmdq.cur];
1731 desc->hdr.type = IWI_HDR_TYPE_COMMAND;
1732 desc->hdr.flags = IWI_HDR_FLAG_IRQ;
1735 memcpy(desc->data, data, len);
1737 bus_dmamap_sync(sc->cmdq.desc_dmat, sc->cmdq.desc_map,
1738 BUS_DMASYNC_PREWRITE);
1740 DPRINTFN(2, ("sending command idx=%u type=%u len=%u\n", sc->cmdq.cur,
1743 sc->cmdq.cur = (sc->cmdq.cur + 1) % IWI_CMD_RING_COUNT;
1744 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur);
1746 return lksleep(sc, &sc->sc_lock, PINTERLOCKED, "iwicmd", hz);
1750 iwi_write_ibssnode(struct iwi_softc *sc,
1751 const u_int8_t addr[IEEE80211_ADDR_LEN], int entry)
1753 struct iwi_ibssnode node;
1755 /* write node information into NIC memory */
1756 memset(&node, 0, sizeof node);
1757 IEEE80211_ADDR_COPY(node.bssid, addr);
1759 DPRINTF(("%s mac %6D station %u\n", __func__, node.bssid, ":", entry));
1761 CSR_WRITE_REGION_1(sc,
1762 IWI_CSR_NODE_BASE + entry * sizeof node,
1763 (uint8_t *)&node, sizeof node);
1767 iwi_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni,
1770 struct iwi_softc *sc = ifp->if_softc;
1771 struct ieee80211vap *vap = ni->ni_vap;
1772 struct ieee80211com *ic = ni->ni_ic;
1773 struct iwi_node *in = (struct iwi_node *)ni;
1774 const struct ieee80211_frame *wh;
1775 struct ieee80211_key *k;
1776 const struct chanAccParams *cap;
1777 struct iwi_tx_ring *txq = &sc->txq[ac];
1778 struct iwi_tx_data *data;
1779 struct iwi_tx_desc *desc;
1781 bus_dma_segment_t segs[IWI_MAX_NSEG];
1782 int error, nsegs, hdrlen, i;
1783 int ismcast, flags, xflags, staid;
1785 IWI_LOCK_ASSERT(sc);
1786 wh = mtod(m0, const struct ieee80211_frame *);
1787 /* NB: only data frames use this path */
1788 hdrlen = ieee80211_hdrsize(wh);
1789 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1);
1793 flags |= IWI_DATA_FLAG_NEED_ACK;
1794 if (vap->iv_flags & IEEE80211_F_SHPREAMBLE)
1795 flags |= IWI_DATA_FLAG_SHPREAMBLE;
1796 if (IEEE80211_QOS_HAS_SEQ(wh)) {
1797 xflags |= IWI_DATA_XFLAG_QOS;
1798 cap = &ic->ic_wme.wme_chanParams;
1799 if (!cap->cap_wmeParams[ac].wmep_noackPolicy)
1800 flags &= ~IWI_DATA_FLAG_NEED_ACK;
1804 * This is only used in IBSS mode where the firmware expect an index
1805 * in a h/w table instead of a destination address.
1807 if (vap->iv_opmode == IEEE80211_M_IBSS) {
1809 if (in->in_station == -1) {
1810 in->in_station = devfs_clone_bitmap_get(&sc->sc_unr,
1811 IWI_MAX_IBSSNODE-1);
1812 if (in->in_station == -1) {
1813 /* h/w table is full */
1815 ieee80211_free_node(ni);
1819 iwi_write_ibssnode(sc,
1820 ni->ni_macaddr, in->in_station);
1822 staid = in->in_station;
1825 * Multicast addresses have no associated node
1826 * so there will be no station entry. We reserve
1827 * entry 0 for one mcast address and use that.
1828 * If there are many being used this will be
1829 * expensive and we'll need to do a better job
1830 * but for now this handles the broadcast case.
1832 if (!IEEE80211_ADDR_EQ(wh->i_addr1, sc->sc_mcast)) {
1833 IEEE80211_ADDR_COPY(sc->sc_mcast, wh->i_addr1);
1834 iwi_write_ibssnode(sc, sc->sc_mcast, 0);
1841 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1842 k = ieee80211_crypto_encap(ni, m0);
1848 /* packet header may have moved, reset our local pointer */
1849 wh = mtod(m0, struct ieee80211_frame *);
1852 if (ieee80211_radiotap_active_vap(vap)) {
1853 struct iwi_tx_radiotap_header *tap = &sc->sc_txtap;
1857 ieee80211_radiotap_tx(vap, m0);
1860 data = &txq->data[txq->cur];
1861 desc = &txq->desc[txq->cur];
1863 /* save and trim IEEE802.11 header */
1864 m_copydata(m0, 0, hdrlen, (caddr_t)&desc->wh);
1867 error = bus_dmamap_load_mbuf_segment(txq->data_dmat, data->map,
1868 m0, segs, 1, &nsegs, BUS_DMA_NOWAIT);
1869 if (error != 0 && error != EFBIG) {
1870 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1876 mnew = m_defrag(m0, MB_DONTWAIT);
1878 device_printf(sc->sc_dev,
1879 "could not defragment mbuf\n");
1885 error = bus_dmamap_load_mbuf_segment(txq->data_dmat,
1886 data->map, m0, segs, 1, &nsegs, BUS_DMA_NOWAIT);
1888 device_printf(sc->sc_dev,
1889 "could not map mbuf (error %d)\n", error);
1898 desc->hdr.type = IWI_HDR_TYPE_DATA;
1899 desc->hdr.flags = IWI_HDR_FLAG_IRQ;
1900 desc->station = staid;
1901 desc->cmd = IWI_DATA_CMD_TX;
1902 desc->len = htole16(m0->m_pkthdr.len);
1903 desc->flags = flags;
1904 desc->xflags = xflags;
1907 if (vap->iv_flags & IEEE80211_F_PRIVACY)
1908 desc->wep_txkey = vap->iv_def_txkey;
1911 desc->flags |= IWI_DATA_FLAG_NO_WEP;
1913 desc->nseg = htole32(nsegs);
1914 for (i = 0; i < nsegs; i++) {
1915 desc->seg_addr[i] = htole32(segs[i].ds_addr);
1916 desc->seg_len[i] = htole16(segs[i].ds_len);
1919 bus_dmamap_sync(txq->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1920 bus_dmamap_sync(txq->desc_dmat, txq->desc_map, BUS_DMASYNC_PREWRITE);
1922 DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n",
1923 ac, txq->cur, le16toh(desc->len), nsegs));
1926 txq->cur = (txq->cur + 1) % IWI_TX_RING_COUNT;
1927 CSR_WRITE_4(sc, txq->csr_widx, txq->cur);
1933 iwi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
1934 const struct ieee80211_bpf_params *params)
1936 /* no support; just discard */
1938 ieee80211_free_node(ni);
1943 iwi_start_locked(struct ifnet *ifp)
1945 struct iwi_softc *sc = ifp->if_softc;
1947 struct ieee80211_node *ni;
1950 IWI_LOCK_ASSERT(sc);
1952 if ((ifp->if_flags & IFF_RUNNING) == 0)
1956 IF_DEQUEUE(&ifp->if_snd, m);
1959 ac = M_WME_GETAC(m);
1960 if (sc->txq[ac].queued > IWI_TX_RING_COUNT - 8) {
1961 /* there is no place left in this ring; tail drop */
1963 IF_PREPEND(&ifp->if_snd, m);
1964 ifp->if_flags |= IFF_OACTIVE;
1968 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1969 if (iwi_tx_start(ifp, m, ni, ac) != 0) {
1970 ieee80211_free_node(ni);
1975 sc->sc_tx_timer = 5;
1980 iwi_start(struct ifnet *ifp)
1982 struct iwi_softc *sc;
1988 iwi_start_locked(ifp);
1993 iwi_watchdog(void *arg)
1995 struct iwi_softc *sc = arg;
1996 struct ifnet *ifp = sc->sc_ifp;
1997 struct ieee80211com *ic = ifp->if_l2com;
2001 if (sc->sc_tx_timer > 0) {
2002 if (--sc->sc_tx_timer == 0) {
2003 if_printf(ifp, "device timeout\n");
2005 ieee80211_runtask(ic, &sc->sc_restarttask);
2008 if (sc->sc_state_timer > 0) {
2009 if (--sc->sc_state_timer == 0) {
2010 if_printf(ifp, "firmware stuck in state %d, resetting\n",
2012 if (sc->fw_state == IWI_FW_SCANNING) {
2013 struct ieee80211com *ic = ifp->if_l2com;
2014 ieee80211_cancel_scan(TAILQ_FIRST(&ic->ic_vaps));
2016 ieee80211_runtask(ic, &sc->sc_restarttask);
2017 sc->sc_state_timer = 3;
2020 if (sc->sc_busy_timer > 0) {
2021 if (--sc->sc_busy_timer == 0) {
2022 if_printf(ifp, "firmware command timeout, resetting\n");
2023 ieee80211_runtask(ic, &sc->sc_restarttask);
2026 callout_reset(&sc->sc_wdtimer, hz, iwi_watchdog, sc);
2031 iwi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *ucred)
2033 struct iwi_softc *sc = ifp->if_softc;
2034 struct ieee80211com *ic = ifp->if_l2com;
2035 struct ifreq *ifr = (struct ifreq *) data;
2036 int error = 0, startall = 0;
2042 if (ifp->if_flags & IFF_UP) {
2043 if (!(ifp->if_flags & IFF_RUNNING)) {
2044 iwi_init_locked(sc);
2048 if (ifp->if_flags & IFF_RUNNING)
2049 iwi_stop_locked(sc);
2053 ieee80211_start_all(ic);
2056 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
2059 error = ether_ioctl(ifp, cmd, data);
2069 iwi_stop_master(struct iwi_softc *sc)
2074 /* disable interrupts */
2075 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0);
2077 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER);
2078 for (ntries = 0; ntries < 5; ntries++) {
2079 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED)
2084 device_printf(sc->sc_dev, "timeout waiting for master\n");
2086 tmp = CSR_READ_4(sc, IWI_CSR_RST);
2087 CSR_WRITE_4(sc, IWI_CSR_RST, tmp | IWI_RST_PRINCETON_RESET);
2089 sc->flags &= ~IWI_FLAG_FW_INITED;
2093 iwi_reset(struct iwi_softc *sc)
2098 iwi_stop_master(sc);
2100 tmp = CSR_READ_4(sc, IWI_CSR_CTL);
2101 CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_INIT);
2103 CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST);
2105 /* wait for clock stabilization */
2106 for (ntries = 0; ntries < 1000; ntries++) {
2107 if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY)
2111 if (ntries == 1000) {
2112 device_printf(sc->sc_dev,
2113 "timeout waiting for clock stabilization\n");
2117 tmp = CSR_READ_4(sc, IWI_CSR_RST);
2118 CSR_WRITE_4(sc, IWI_CSR_RST, tmp | IWI_RST_SOFT_RESET);
2122 tmp = CSR_READ_4(sc, IWI_CSR_CTL);
2123 CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_INIT);
2125 /* clear NIC memory */
2126 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0);
2127 for (i = 0; i < 0xc000; i++)
2128 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0);
2133 static const struct iwi_firmware_ohdr *
2134 iwi_setup_ofw(struct iwi_softc *sc, struct iwi_fw *fw)
2136 const struct firmware *fp = fw->fp;
2137 const struct iwi_firmware_ohdr *hdr;
2139 if (fp->datasize < sizeof (struct iwi_firmware_ohdr)) {
2140 device_printf(sc->sc_dev, "image '%s' too small\n", fp->name);
2143 hdr = (const struct iwi_firmware_ohdr *)fp->data;
2144 if ((IWI_FW_GET_MAJOR(le32toh(hdr->version)) != IWI_FW_REQ_MAJOR) ||
2145 (IWI_FW_GET_MINOR(le32toh(hdr->version)) != IWI_FW_REQ_MINOR)) {
2146 device_printf(sc->sc_dev, "version for '%s' %d.%d != %d.%d\n",
2147 fp->name, IWI_FW_GET_MAJOR(le32toh(hdr->version)),
2148 IWI_FW_GET_MINOR(le32toh(hdr->version)), IWI_FW_REQ_MAJOR,
2152 fw->data = ((const char *) fp->data) + sizeof(struct iwi_firmware_ohdr);
2153 fw->size = fp->datasize - sizeof(struct iwi_firmware_ohdr);
2154 fw->name = fp->name;
2158 static const struct iwi_firmware_ohdr *
2159 iwi_setup_oucode(struct iwi_softc *sc, struct iwi_fw *fw)
2161 const struct iwi_firmware_ohdr *hdr;
2163 hdr = iwi_setup_ofw(sc, fw);
2164 if (hdr != NULL && le32toh(hdr->mode) != IWI_FW_MODE_UCODE) {
2165 device_printf(sc->sc_dev, "%s is not a ucode image\n",
2173 iwi_getfw(struct iwi_fw *fw, const char *fwname,
2174 struct iwi_fw *uc, const char *ucname)
2177 fw->fp = firmware_get(fwname);
2179 /* NB: pre-3.0 ucode is packaged separately */
2180 if (uc->fp == NULL && fw->fp != NULL && fw->fp->version < 300)
2181 uc->fp = firmware_get(ucname);
2185 * Get the required firmware images if not already loaded.
2186 * Note that we hold firmware images so long as the device
2187 * is marked up in case we need to reload them on device init.
2188 * This is necessary because we re-init the device sometimes
2189 * from a context where we cannot read from the filesystem
2190 * (e.g. from the taskqueue thread when rfkill is re-enabled).
2191 * XXX return 0 on success, 1 on error.
2193 * NB: the order of get'ing and put'ing images here is
2194 * intentional to support handling firmware images bundled
2195 * by operating mode and/or all together in one file with
2196 * the boot firmware as "master".
2199 iwi_get_firmware(struct iwi_softc *sc, enum ieee80211_opmode opmode)
2201 const struct iwi_firmware_hdr *hdr;
2202 const struct firmware *fp;
2204 /* invalidate cached firmware on mode change */
2205 if (sc->fw_mode != opmode)
2206 iwi_put_firmware(sc);
2209 case IEEE80211_M_STA:
2210 iwi_getfw(&sc->fw_fw, "iwi_bss", &sc->fw_uc, "iwi_ucode_bss");
2212 case IEEE80211_M_IBSS:
2213 iwi_getfw(&sc->fw_fw, "iwi_ibss", &sc->fw_uc, "iwi_ucode_ibss");
2215 case IEEE80211_M_MONITOR:
2216 iwi_getfw(&sc->fw_fw, "iwi_monitor",
2217 &sc->fw_uc, "iwi_ucode_monitor");
2220 device_printf(sc->sc_dev, "unknown opmode %d\n", opmode);
2225 device_printf(sc->sc_dev, "could not load firmware\n");
2228 if (fp->version < 300) {
2230 * Firmware prior to 3.0 was packaged as separate
2231 * boot, firmware, and ucode images. Verify the
2232 * ucode image was read in, retrieve the boot image
2233 * if needed, and check version stamps for consistency.
2234 * The version stamps in the data are also checked
2235 * above; this is a bit paranoid but is a cheap
2236 * safeguard against mis-packaging.
2238 if (sc->fw_uc.fp == NULL) {
2239 device_printf(sc->sc_dev, "could not load ucode\n");
2242 if (sc->fw_boot.fp == NULL) {
2243 sc->fw_boot.fp = firmware_get("iwi_boot");
2244 if (sc->fw_boot.fp == NULL) {
2245 device_printf(sc->sc_dev,
2246 "could not load boot firmware\n");
2250 if (sc->fw_boot.fp->version != sc->fw_fw.fp->version ||
2251 sc->fw_boot.fp->version != sc->fw_uc.fp->version) {
2252 device_printf(sc->sc_dev,
2253 "firmware version mismatch: "
2254 "'%s' is %d, '%s' is %d, '%s' is %d\n",
2255 sc->fw_boot.fp->name, sc->fw_boot.fp->version,
2256 sc->fw_uc.fp->name, sc->fw_uc.fp->version,
2257 sc->fw_fw.fp->name, sc->fw_fw.fp->version
2262 * Check and setup each image.
2264 if (iwi_setup_oucode(sc, &sc->fw_uc) == NULL ||
2265 iwi_setup_ofw(sc, &sc->fw_boot) == NULL ||
2266 iwi_setup_ofw(sc, &sc->fw_fw) == NULL)
2270 * Check and setup combined image.
2272 if (fp->datasize < sizeof(struct iwi_firmware_hdr)) {
2273 device_printf(sc->sc_dev, "image '%s' too small\n",
2277 hdr = (const struct iwi_firmware_hdr *)fp->data;
2278 if (fp->datasize < sizeof(*hdr) + le32toh(hdr->bsize) + le32toh(hdr->usize)
2279 + le32toh(hdr->fsize)) {
2280 device_printf(sc->sc_dev, "image '%s' too small (2)\n",
2284 sc->fw_boot.data = ((const char *) fp->data) + sizeof(*hdr);
2285 sc->fw_boot.size = le32toh(hdr->bsize);
2286 sc->fw_boot.name = fp->name;
2287 sc->fw_uc.data = sc->fw_boot.data + sc->fw_boot.size;
2288 sc->fw_uc.size = le32toh(hdr->usize);
2289 sc->fw_uc.name = fp->name;
2290 sc->fw_fw.data = sc->fw_uc.data + sc->fw_uc.size;
2291 sc->fw_fw.size = le32toh(hdr->fsize);
2292 sc->fw_fw.name = fp->name;
2295 device_printf(sc->sc_dev, "boot %d ucode %d fw %d bytes\n",
2296 sc->fw_boot.size, sc->fw_uc.size, sc->fw_fw.size);
2299 sc->fw_mode = opmode;
2302 iwi_put_firmware(sc);
2307 iwi_put_fw(struct iwi_fw *fw)
2309 if (fw->fp != NULL) {
2310 firmware_put(fw->fp, FIRMWARE_UNLOAD);
2319 * Release any cached firmware images.
2322 iwi_put_firmware(struct iwi_softc *sc)
2324 iwi_put_fw(&sc->fw_uc);
2325 iwi_put_fw(&sc->fw_fw);
2326 iwi_put_fw(&sc->fw_boot);
2330 iwi_load_ucode(struct iwi_softc *sc, const struct iwi_fw *fw)
2334 const char *uc = fw->data;
2335 size_t size = fw->size;
2336 int i, ntries, error;
2338 IWI_LOCK_ASSERT(sc);
2340 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) |
2341 IWI_RST_STOP_MASTER);
2342 for (ntries = 0; ntries < 5; ntries++) {
2343 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED)
2348 device_printf(sc->sc_dev, "timeout waiting for master\n");
2353 MEM_WRITE_4(sc, 0x3000e0, 0x80000000);
2356 tmp = CSR_READ_4(sc, IWI_CSR_RST);
2357 tmp &= ~IWI_RST_PRINCETON_RESET;
2358 CSR_WRITE_4(sc, IWI_CSR_RST, tmp);
2361 MEM_WRITE_4(sc, 0x3000e0, 0);
2363 MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, 1);
2365 MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, 0);
2367 MEM_WRITE_1(sc, 0x200000, 0x00);
2368 MEM_WRITE_1(sc, 0x200000, 0x40);
2371 /* write microcode into adapter memory */
2372 for (w = (const uint16_t *)uc; size > 0; w++, size -= 2)
2373 MEM_WRITE_2(sc, 0x200010, htole16(*w));
2375 MEM_WRITE_1(sc, 0x200000, 0x00);
2376 MEM_WRITE_1(sc, 0x200000, 0x80);
2378 /* wait until we get an answer */
2379 for (ntries = 0; ntries < 100; ntries++) {
2380 if (MEM_READ_1(sc, 0x200000) & 1)
2384 if (ntries == 100) {
2385 device_printf(sc->sc_dev,
2386 "timeout waiting for ucode to initialize\n");
2391 /* read the answer or the firmware will not initialize properly */
2392 for (i = 0; i < 7; i++)
2393 MEM_READ_4(sc, 0x200004);
2395 MEM_WRITE_1(sc, 0x200000, 0x00);
2401 /* macro to handle unaligned little endian data in firmware image */
2402 #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24)
2405 iwi_load_firmware(struct iwi_softc *sc, const struct iwi_fw *fw)
2408 uint32_t sentinel, ctl, src, dst, sum, len, mlen, tmp;
2411 IWI_LOCK_ASSERT(sc);
2413 /* copy firmware image to DMA memory */
2414 memcpy(sc->fw_virtaddr, fw->data, fw->size);
2416 /* make sure the adapter will get up-to-date values */
2417 bus_dmamap_sync(sc->fw_dmat, sc->fw_map, BUS_DMASYNC_PREWRITE);
2419 /* tell the adapter where the command blocks are stored */
2420 MEM_WRITE_4(sc, 0x3000a0, 0x27000);
2423 * Store command blocks into adapter's internal memory using register
2424 * indirections. The adapter will read the firmware image through DMA
2425 * using information stored in command blocks.
2427 src = sc->fw_physaddr;
2428 p = sc->fw_virtaddr;
2430 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000);
2433 dst = GETLE32(p); p += 4; src += 4;
2434 len = GETLE32(p); p += 4; src += 4;
2438 mlen = min(len, IWI_CB_MAXDATALEN);
2440 ctl = IWI_CB_DEFAULT_CTL | mlen;
2441 sum = ctl ^ src ^ dst;
2443 /* write a command block */
2444 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl);
2445 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, src);
2446 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, dst);
2447 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum);
2455 /* write a fictive final command block (sentinel) */
2456 sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR);
2457 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0);
2459 tmp = CSR_READ_4(sc, IWI_CSR_RST);
2460 tmp &= ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER);
2461 CSR_WRITE_4(sc, IWI_CSR_RST, tmp);
2463 /* tell the adapter to start processing command blocks */
2464 MEM_WRITE_4(sc, 0x3000a4, 0x540100);
2466 /* wait until the adapter reaches the sentinel */
2467 for (ntries = 0; ntries < 400; ntries++) {
2468 if (MEM_READ_4(sc, 0x3000d0) >= sentinel)
2472 /* sync dma, just in case */
2473 bus_dmamap_sync(sc->fw_dmat, sc->fw_map, BUS_DMASYNC_POSTWRITE);
2474 if (ntries == 400) {
2475 device_printf(sc->sc_dev,
2476 "timeout processing command blocks for %s firmware\n",
2481 /* we're done with command blocks processing */
2482 MEM_WRITE_4(sc, 0x3000a4, 0x540c00);
2484 /* allow interrupts so we know when the firmware is ready */
2485 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK);
2487 /* tell the adapter to initialize the firmware */
2488 CSR_WRITE_4(sc, IWI_CSR_RST, 0);
2490 tmp = CSR_READ_4(sc, IWI_CSR_CTL);
2491 CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_ALLOW_STANDBY);
2493 /* wait at most one second for firmware initialization to complete */
2494 error = tsleep(sc, 0, "iwiinit", hz);
2496 device_printf(sc->sc_dev, "timeout waiting for firmware "
2497 "initialization to complete\n");
2504 iwi_setpowermode(struct iwi_softc *sc, struct ieee80211vap *vap)
2508 if (vap->iv_flags & IEEE80211_F_PMGTON) {
2509 /* XXX set more fine-grained operation */
2510 data = htole32(IWI_POWER_MODE_MAX);
2512 data = htole32(IWI_POWER_MODE_CAM);
2514 DPRINTF(("Setting power mode to %u\n", le32toh(data)));
2515 return iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data);
2519 iwi_setwepkeys(struct iwi_softc *sc, struct ieee80211vap *vap)
2521 struct iwi_wep_key wepkey;
2522 struct ieee80211_key *wk;
2525 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2526 wk = &vap->iv_nw_keys[i];
2528 wepkey.cmd = IWI_WEP_KEY_CMD_SETKEY;
2530 wepkey.len = wk->wk_keylen;
2531 memset(wepkey.key, 0, sizeof wepkey.key);
2532 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen);
2533 DPRINTF(("Setting wep key index %u len %u\n", wepkey.idx,
2535 error = iwi_cmd(sc, IWI_CMD_SET_WEP_KEY, &wepkey,
2544 iwi_config(struct iwi_softc *sc)
2546 struct ifnet *ifp = sc->sc_ifp;
2547 struct ieee80211com *ic = ifp->if_l2com;
2548 struct iwi_configuration config;
2549 struct iwi_rateset rs;
2550 struct iwi_txpower power;
2553 const uint8_t *eaddr = IF_LLADDR(ifp);
2555 IWI_LOCK_ASSERT(sc);
2557 DPRINTF(("Setting MAC address to %6D\n", eaddr, ":"));
2558 error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, IF_LLADDR(ifp),
2559 IEEE80211_ADDR_LEN);
2563 memset(&config, 0, sizeof config);
2564 config.bluetooth_coexistence = sc->bluetooth;
2565 config.silence_threshold = 0x1e;
2566 config.antenna = sc->antenna;
2567 config.multicast_enabled = 1;
2568 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0;
2569 config.disable_unicast_decryption = 1;
2570 config.disable_multicast_decryption = 1;
2571 DPRINTF(("Configuring adapter\n"));
2572 error = iwi_cmd(sc, IWI_CMD_SET_CONFIG, &config, sizeof config);
2575 if (ic->ic_opmode == IEEE80211_M_IBSS) {
2576 power.mode = IWI_MODE_11B;
2578 for (i = 0; i < 11; i++) {
2579 power.chan[i].chan = i + 1;
2580 power.chan[i].power = IWI_TXPOWER_MAX;
2582 DPRINTF(("Setting .11b channels tx power\n"));
2583 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power);
2587 power.mode = IWI_MODE_11G;
2588 DPRINTF(("Setting .11g channels tx power\n"));
2589 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power);
2594 memset(&rs, 0, sizeof rs);
2595 rs.mode = IWI_MODE_11G;
2596 rs.type = IWI_RATESET_TYPE_SUPPORTED;
2597 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates;
2598 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates,
2600 DPRINTF(("Setting .11bg supported rates (%u)\n", rs.nrates));
2601 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs);
2605 memset(&rs, 0, sizeof rs);
2606 rs.mode = IWI_MODE_11A;
2607 rs.type = IWI_RATESET_TYPE_SUPPORTED;
2608 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates;
2609 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11A].rs_rates,
2611 DPRINTF(("Setting .11a supported rates (%u)\n", rs.nrates));
2612 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs);
2616 data = htole32(karc4random());
2617 DPRINTF(("Setting initialization vector to %u\n", le32toh(data)));
2618 error = iwi_cmd(sc, IWI_CMD_SET_IV, &data, sizeof data);
2622 /* enable adapter */
2623 DPRINTF(("Enabling adapter\n"));
2624 return iwi_cmd(sc, IWI_CMD_ENABLE, NULL, 0);
2627 static __inline void
2628 set_scan_type(struct iwi_scan_ext *scan, int ix, int scan_type)
2630 uint8_t *st = &scan->scan_type[ix / 2];
2632 *st = (*st & 0xf0) | ((scan_type & 0xf) << 0);
2634 *st = (*st & 0x0f) | ((scan_type & 0xf) << 4);
2638 scan_type(const struct ieee80211_scan_state *ss,
2639 const struct ieee80211_channel *chan)
2641 /* We can only set one essid for a directed scan */
2642 if (ss->ss_nssid != 0)
2643 return IWI_SCAN_TYPE_BDIRECTED;
2644 if ((ss->ss_flags & IEEE80211_SCAN_ACTIVE) &&
2645 (chan->ic_flags & IEEE80211_CHAN_PASSIVE) == 0)
2646 return IWI_SCAN_TYPE_BROADCAST;
2647 return IWI_SCAN_TYPE_PASSIVE;
2651 scan_band(const struct ieee80211_channel *c)
2653 return IEEE80211_IS_CHAN_5GHZ(c) ? IWI_CHAN_5GHZ : IWI_CHAN_2GHZ;
2657 * Start a scan on the current channel or all channels.
2660 iwi_scanchan(struct iwi_softc *sc, unsigned long maxdwell, int allchan)
2662 struct ieee80211com *ic;
2663 struct ieee80211_channel *chan;
2664 struct ieee80211_scan_state *ss;
2665 struct iwi_scan_ext scan;
2668 IWI_LOCK_ASSERT(sc);
2669 if (sc->fw_state == IWI_FW_SCANNING) {
2671 * This should not happen as we only trigger scan_next after
2674 DPRINTF(("%s: called too early - still scanning\n", __func__));
2677 IWI_STATE_BEGIN(sc, IWI_FW_SCANNING);
2679 ic = sc->sc_ifp->if_l2com;
2682 memset(&scan, 0, sizeof scan);
2683 scan.full_scan_index = htole32(++sc->sc_scangen);
2684 scan.dwell_time[IWI_SCAN_TYPE_PASSIVE] = htole16(maxdwell);
2685 if (ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN) {
2687 * Use very short dwell times for when we send probe request
2688 * frames. Without this bg scans hang. Ideally this should
2689 * be handled with early-termination as done by net80211 but
2690 * that's not feasible (aborting a scan is problematic).
2692 scan.dwell_time[IWI_SCAN_TYPE_BROADCAST] = htole16(30);
2693 scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED] = htole16(30);
2695 scan.dwell_time[IWI_SCAN_TYPE_BROADCAST] = htole16(maxdwell);
2696 scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED] = htole16(maxdwell);
2699 /* We can only set one essid for a directed scan */
2700 if (ss->ss_nssid != 0) {
2701 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ss->ss_ssid[0].ssid,
2702 ss->ss_ssid[0].len);
2708 int i, next, band, b, bstart;
2710 * Convert scan list to run-length encoded channel list
2711 * the firmware requires (preserving the order setup by
2712 * net80211). The first entry in each run specifies the
2713 * band and the count of items in the run.
2715 next = 0; /* next open slot */
2716 bstart = 0; /* NB: not needed, silence compiler */
2717 band = -1; /* NB: impossible value */
2718 KASSERT(ss->ss_last > 0, ("no channels"));
2719 for (i = 0; i < ss->ss_last; i++) {
2720 chan = ss->ss_chans[i];
2721 b = scan_band(chan);
2724 scan.channels[bstart] =
2725 (next - bstart) | band;
2726 /* NB: this allocates a slot for the run-len */
2727 band = b, bstart = next++;
2729 if (next >= IWI_SCAN_CHANNELS) {
2730 DPRINTF(("truncating scan list\n"));
2733 scan.channels[next] = ieee80211_chan2ieee(ic, chan);
2734 set_scan_type(&scan, next, scan_type(ss, chan));
2737 scan.channels[bstart] = (next - bstart) | band;
2739 /* Scan the current channel only */
2740 chan = ic->ic_curchan;
2741 scan.channels[0] = 1 | scan_band(chan);
2742 scan.channels[1] = ieee80211_chan2ieee(ic, chan);
2743 set_scan_type(&scan, 1, scan_type(ss, chan));
2746 if (iwi_debug > 0) {
2747 static const char *scantype[8] =
2748 { "PSTOP", "PASV", "DIR", "BCAST", "BDIR", "5", "6", "7" };
2750 kprintf("Scan request: index %u dwell %d/%d/%d\n"
2751 , le32toh(scan.full_scan_index)
2752 , le16toh(scan.dwell_time[IWI_SCAN_TYPE_PASSIVE])
2753 , le16toh(scan.dwell_time[IWI_SCAN_TYPE_BROADCAST])
2754 , le16toh(scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED])
2758 int run = scan.channels[i];
2761 kprintf("Scan %d %s channels:", run & 0x3f,
2762 run & IWI_CHAN_2GHZ ? "2.4GHz" : "5GHz");
2763 for (run &= 0x3f, i++; run > 0; run--, i++) {
2764 uint8_t type = scan.scan_type[i/2];
2765 kprintf(" %u/%s", scan.channels[i],
2766 scantype[(i & 1 ? type : type>>4) & 7]);
2769 } while (i < IWI_SCAN_CHANNELS);
2773 return (iwi_cmd(sc, IWI_CMD_SCAN_EXT, &scan, sizeof scan));
2777 iwi_set_sensitivity(struct iwi_softc *sc, int8_t rssi_dbm)
2779 struct iwi_sensitivity sens;
2781 DPRINTF(("Setting sensitivity to %d\n", rssi_dbm));
2783 memset(&sens, 0, sizeof sens);
2784 sens.rssi = htole16(rssi_dbm);
2785 return iwi_cmd(sc, IWI_CMD_SET_SENSITIVITY, &sens, sizeof sens);
2789 iwi_auth_and_assoc(struct iwi_softc *sc, struct ieee80211vap *vap)
2791 struct ieee80211com *ic = vap->iv_ic;
2792 struct ifnet *ifp = vap->iv_ifp;
2793 struct ieee80211_node *ni = vap->iv_bss;
2794 struct iwi_configuration config;
2795 struct iwi_associate *assoc = &sc->assoc;
2796 struct iwi_rateset rs;
2801 IWI_LOCK_ASSERT(sc);
2803 if (sc->flags & IWI_FLAG_ASSOCIATED) {
2804 DPRINTF(("Already associated\n"));
2808 IWI_STATE_BEGIN(sc, IWI_FW_ASSOCIATING);
2812 if (IEEE80211_IS_CHAN_A(ic->ic_curchan))
2813 mode = IWI_MODE_11A;
2814 else if (IEEE80211_IS_CHAN_G(ic->ic_curchan))
2815 mode = IWI_MODE_11G;
2816 if (IEEE80211_IS_CHAN_B(ic->ic_curchan))
2817 mode = IWI_MODE_11B;
2819 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) {
2820 memset(&config, 0, sizeof config);
2821 config.bluetooth_coexistence = sc->bluetooth;
2822 config.antenna = sc->antenna;
2823 config.multicast_enabled = 1;
2824 if (mode == IWI_MODE_11G)
2825 config.use_protection = 1;
2826 config.answer_pbreq =
2827 (vap->iv_opmode == IEEE80211_M_IBSS) ? 1 : 0;
2828 config.disable_unicast_decryption = 1;
2829 config.disable_multicast_decryption = 1;
2830 DPRINTF(("Configuring adapter\n"));
2831 error = iwi_cmd(sc, IWI_CMD_SET_CONFIG, &config, sizeof config);
2837 if (iwi_debug > 0) {
2838 kprintf("Setting ESSID to ");
2839 ieee80211_print_essid(ni->ni_essid, ni->ni_esslen);
2843 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen);
2847 error = iwi_setpowermode(sc, vap);
2851 data = htole32(vap->iv_rtsthreshold);
2852 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data)));
2853 error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data);
2857 data = htole32(vap->iv_fragthreshold);
2858 DPRINTF(("Setting fragmentation threshold to %u\n", le32toh(data)));
2859 error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data);
2863 /* the rate set has already been "negotiated" */
2864 memset(&rs, 0, sizeof rs);
2866 rs.type = IWI_RATESET_TYPE_NEGOTIATED;
2867 rs.nrates = ni->ni_rates.rs_nrates;
2868 if (rs.nrates > IWI_RATESET_SIZE) {
2869 DPRINTF(("Truncating negotiated rate set from %u\n",
2871 rs.nrates = IWI_RATESET_SIZE;
2873 memcpy(rs.rates, ni->ni_rates.rs_rates, rs.nrates);
2874 DPRINTF(("Setting negotiated rates (%u)\n", rs.nrates));
2875 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs);
2879 memset(assoc, 0, sizeof *assoc);
2881 if ((vap->iv_flags & IEEE80211_F_WME) && ni->ni_ies.wme_ie != NULL) {
2882 /* NB: don't treat WME setup as failure */
2883 if (iwi_wme_setparams(sc, ic) == 0 && iwi_wme_setie(sc) == 0)
2884 assoc->policy |= htole16(IWI_POLICY_WME);
2885 /* XXX complain on failure? */
2888 if (vap->iv_appie_wpa != NULL) {
2889 struct ieee80211_appie *ie = vap->iv_appie_wpa;
2891 DPRINTF(("Setting optional IE (len=%u)\n", ie->ie_len));
2892 error = iwi_cmd(sc, IWI_CMD_SET_OPTIE, ie->ie_data, ie->ie_len);
2897 error = iwi_set_sensitivity(sc, ic->ic_node_getrssi(ni));
2902 assoc->chan = ic->ic_curchan->ic_ieee;
2904 * NB: do not arrange for shared key auth w/o privacy
2905 * (i.e. a wep key); it causes a firmware error.
2907 if ((vap->iv_flags & IEEE80211_F_PRIVACY) &&
2908 ni->ni_authmode == IEEE80211_AUTH_SHARED) {
2909 assoc->auth = IWI_AUTH_SHARED;
2911 * It's possible to have privacy marked but no default
2912 * key setup. This typically is due to a user app bug
2913 * but if we blindly grab the key the firmware will
2914 * barf so avoid it for now.
2916 if (vap->iv_def_txkey != IEEE80211_KEYIX_NONE)
2917 assoc->auth |= vap->iv_def_txkey << 4;
2919 error = iwi_setwepkeys(sc, vap);
2923 if (vap->iv_flags & IEEE80211_F_WPA)
2924 assoc->policy |= htole16(IWI_POLICY_WPA);
2925 if (vap->iv_opmode == IEEE80211_M_IBSS && ni->ni_tstamp.tsf == 0)
2926 assoc->type = IWI_HC_IBSS_START;
2928 assoc->type = IWI_HC_ASSOC;
2929 memcpy(assoc->tstamp, ni->ni_tstamp.data, 8);
2931 if (vap->iv_opmode == IEEE80211_M_IBSS)
2932 capinfo = IEEE80211_CAPINFO_IBSS;
2934 capinfo = IEEE80211_CAPINFO_ESS;
2935 if (vap->iv_flags & IEEE80211_F_PRIVACY)
2936 capinfo |= IEEE80211_CAPINFO_PRIVACY;
2937 if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) &&
2938 IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan))
2939 capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE;
2940 if (ni->ni_capinfo & IEEE80211_CAPINFO_SHORT_SLOTTIME)
2941 capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME;
2942 assoc->capinfo = htole16(capinfo);
2944 assoc->lintval = htole16(ic->ic_lintval);
2945 assoc->intval = htole16(ni->ni_intval);
2946 IEEE80211_ADDR_COPY(assoc->bssid, ni->ni_bssid);
2947 if (vap->iv_opmode == IEEE80211_M_IBSS)
2948 IEEE80211_ADDR_COPY(assoc->dst, ifp->if_broadcastaddr);
2950 IEEE80211_ADDR_COPY(assoc->dst, ni->ni_bssid);
2952 DPRINTF(("%s bssid %6D dst %6D channel %u policy 0x%x "
2953 "auth %u capinfo 0x%x lintval %u bintval %u\n",
2954 assoc->type == IWI_HC_IBSS_START ? "Start" : "Join",
2955 assoc->bssid, ":", assoc->dst, ":",
2956 assoc->chan, le16toh(assoc->policy), assoc->auth,
2957 le16toh(assoc->capinfo), le16toh(assoc->lintval),
2958 le16toh(assoc->intval)));
2959 error = iwi_cmd(sc, IWI_CMD_ASSOCIATE, assoc, sizeof *assoc);
2962 IWI_STATE_END(sc, IWI_FW_ASSOCIATING);
2968 iwi_disassoc(void *arg, int pending)
2970 struct iwi_softc *sc = arg;
2974 iwi_disassociate(sc, 0);
2979 iwi_disassociate(struct iwi_softc *sc, int quiet)
2981 struct iwi_associate *assoc = &sc->assoc;
2983 if ((sc->flags & IWI_FLAG_ASSOCIATED) == 0) {
2984 DPRINTF(("Not associated\n"));
2988 IWI_STATE_BEGIN(sc, IWI_FW_DISASSOCIATING);
2991 assoc->type = IWI_HC_DISASSOC_QUIET;
2993 assoc->type = IWI_HC_DISASSOC;
2995 DPRINTF(("Trying to disassociate from %6D channel %u\n",
2996 assoc->bssid, ":", assoc->chan));
2997 return iwi_cmd(sc, IWI_CMD_ASSOCIATE, assoc, sizeof *assoc);
3001 * release dma resources for the firmware
3004 iwi_release_fw_dma(struct iwi_softc *sc)
3006 if (sc->fw_flags & IWI_FW_HAVE_PHY)
3007 bus_dmamap_unload(sc->fw_dmat, sc->fw_map);
3008 if (sc->fw_flags & IWI_FW_HAVE_MAP)
3009 bus_dmamem_free(sc->fw_dmat, sc->fw_virtaddr, sc->fw_map);
3010 if (sc->fw_flags & IWI_FW_HAVE_DMAT)
3011 bus_dma_tag_destroy(sc->fw_dmat);
3014 sc->fw_dma_size = 0;
3017 sc->fw_physaddr = 0;
3018 sc->fw_virtaddr = NULL;
3022 * allocate the dma descriptor for the firmware.
3023 * Return 0 on success, 1 on error.
3024 * Must be called unlocked, protected by IWI_FLAG_FW_LOADING.
3027 iwi_init_fw_dma(struct iwi_softc *sc, int size)
3029 if (sc->fw_dma_size >= size)
3031 if (bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT,
3032 BUS_SPACE_MAXADDR, NULL, NULL, size, 1, size,
3033 0, &sc->fw_dmat) != 0) {
3034 device_printf(sc->sc_dev,
3035 "could not create firmware DMA tag\n");
3038 sc->fw_flags |= IWI_FW_HAVE_DMAT;
3039 if (bus_dmamem_alloc(sc->fw_dmat, &sc->fw_virtaddr, 0,
3040 &sc->fw_map) != 0) {
3041 device_printf(sc->sc_dev,
3042 "could not allocate firmware DMA memory\n");
3045 sc->fw_flags |= IWI_FW_HAVE_MAP;
3046 if (bus_dmamap_load(sc->fw_dmat, sc->fw_map, sc->fw_virtaddr,
3047 size, iwi_dma_map_addr, &sc->fw_physaddr, 0) != 0) {
3048 device_printf(sc->sc_dev, "could not load firmware DMA map\n");
3051 sc->fw_flags |= IWI_FW_HAVE_PHY;
3052 sc->fw_dma_size = size;
3056 iwi_release_fw_dma(sc);
3061 iwi_init_locked(struct iwi_softc *sc)
3063 struct ifnet *ifp = sc->sc_ifp;
3064 struct iwi_rx_data *data;
3067 IWI_LOCK_ASSERT(sc);
3069 if (sc->fw_state == IWI_FW_LOADING) {
3070 device_printf(sc->sc_dev, "%s: already loading\n", __func__);
3071 return; /* XXX: condvar? */
3074 iwi_stop_locked(sc);
3076 IWI_STATE_BEGIN(sc, IWI_FW_LOADING);
3078 if (iwi_reset(sc) != 0) {
3079 device_printf(sc->sc_dev, "could not reset adapter\n");
3082 if (iwi_load_firmware(sc, &sc->fw_boot) != 0) {
3083 device_printf(sc->sc_dev,
3084 "could not load boot firmware %s\n", sc->fw_boot.name);
3087 if (iwi_load_ucode(sc, &sc->fw_uc) != 0) {
3088 device_printf(sc->sc_dev,
3089 "could not load microcode %s\n", sc->fw_uc.name);
3093 iwi_stop_master(sc);
3095 CSR_WRITE_4(sc, IWI_CSR_CMD_BASE, sc->cmdq.physaddr);
3096 CSR_WRITE_4(sc, IWI_CSR_CMD_SIZE, sc->cmdq.count);
3097 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur);
3099 CSR_WRITE_4(sc, IWI_CSR_TX1_BASE, sc->txq[0].physaddr);
3100 CSR_WRITE_4(sc, IWI_CSR_TX1_SIZE, sc->txq[0].count);
3101 CSR_WRITE_4(sc, IWI_CSR_TX1_WIDX, sc->txq[0].cur);
3103 CSR_WRITE_4(sc, IWI_CSR_TX2_BASE, sc->txq[1].physaddr);
3104 CSR_WRITE_4(sc, IWI_CSR_TX2_SIZE, sc->txq[1].count);
3105 CSR_WRITE_4(sc, IWI_CSR_TX2_WIDX, sc->txq[1].cur);
3107 CSR_WRITE_4(sc, IWI_CSR_TX3_BASE, sc->txq[2].physaddr);
3108 CSR_WRITE_4(sc, IWI_CSR_TX3_SIZE, sc->txq[2].count);
3109 CSR_WRITE_4(sc, IWI_CSR_TX3_WIDX, sc->txq[2].cur);
3111 CSR_WRITE_4(sc, IWI_CSR_TX4_BASE, sc->txq[3].physaddr);
3112 CSR_WRITE_4(sc, IWI_CSR_TX4_SIZE, sc->txq[3].count);
3113 CSR_WRITE_4(sc, IWI_CSR_TX4_WIDX, sc->txq[3].cur);
3115 for (i = 0; i < sc->rxq.count; i++) {
3116 data = &sc->rxq.data[i];
3117 CSR_WRITE_4(sc, data->reg, data->physaddr);
3120 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, sc->rxq.count - 1);
3122 if (iwi_load_firmware(sc, &sc->fw_fw) != 0) {
3123 device_printf(sc->sc_dev,
3124 "could not load main firmware %s\n", sc->fw_fw.name);
3127 sc->flags |= IWI_FLAG_FW_INITED;
3129 IWI_STATE_END(sc, IWI_FW_LOADING);
3131 if (iwi_config(sc) != 0) {
3132 device_printf(sc->sc_dev, "unable to enable adapter\n");
3136 callout_reset(&sc->sc_wdtimer, hz, iwi_watchdog, sc);
3137 ifp->if_flags &= ~IFF_OACTIVE;
3138 ifp->if_flags |= IFF_RUNNING;
3141 IWI_STATE_END(sc, IWI_FW_LOADING);
3143 iwi_stop_locked(sc);
3147 iwi_init(void *priv)
3149 struct iwi_softc *sc = priv;
3150 struct ifnet *ifp = sc->sc_ifp;
3151 struct ieee80211com *ic = ifp->if_l2com;
3155 iwi_init_locked(sc);
3158 if (ifp->if_flags & IFF_RUNNING)
3159 ieee80211_start_all(ic);
3163 iwi_stop_locked(void *priv)
3165 struct iwi_softc *sc = priv;
3166 struct ifnet *ifp = sc->sc_ifp;
3168 IWI_LOCK_ASSERT(sc);
3170 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
3172 if (sc->sc_softled) {
3173 callout_stop(&sc->sc_ledtimer);
3174 sc->sc_blinking = 0;
3176 callout_stop(&sc->sc_wdtimer);
3177 callout_stop(&sc->sc_rftimer);
3179 iwi_stop_master(sc);
3181 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_SOFT_RESET);
3184 iwi_reset_cmd_ring(sc, &sc->cmdq);
3185 iwi_reset_tx_ring(sc, &sc->txq[0]);
3186 iwi_reset_tx_ring(sc, &sc->txq[1]);
3187 iwi_reset_tx_ring(sc, &sc->txq[2]);
3188 iwi_reset_tx_ring(sc, &sc->txq[3]);
3189 iwi_reset_rx_ring(sc, &sc->rxq);
3191 sc->sc_tx_timer = 0;
3192 sc->sc_state_timer = 0;
3193 sc->sc_busy_timer = 0;
3194 sc->flags &= ~(IWI_FLAG_BUSY | IWI_FLAG_ASSOCIATED);
3195 sc->fw_state = IWI_FW_IDLE;
3200 iwi_stop(struct iwi_softc *sc)
3205 iwi_stop_locked(sc);
3210 iwi_restart(void *arg, int npending)
3212 struct iwi_softc *sc = arg;
3218 * Return whether or not the radio is enabled in hardware
3219 * (i.e. the rfkill switch is "off").
3222 iwi_getrfkill(struct iwi_softc *sc)
3224 return (CSR_READ_4(sc, IWI_CSR_IO) & IWI_IO_RADIO_ENABLED) == 0;
3228 iwi_radio_on(void *arg, int pending)
3230 struct iwi_softc *sc = arg;
3231 struct ieee80211com *ic = sc->sc_ifp->if_l2com;
3233 device_printf(sc->sc_dev, "radio turned on\n");
3236 ieee80211_notify_radio(ic, 1);
3240 iwi_rfkill_poll(void *arg)
3242 struct iwi_softc *sc = arg;
3244 IWI_LOCK_ASSERT(sc);
3247 * Check for a change in rfkill state. We get an
3248 * interrupt when a radio is disabled but not when
3249 * it is enabled so we must poll for the latter.
3251 if (!iwi_getrfkill(sc)) {
3252 struct ifnet *ifp = sc->sc_ifp;
3253 struct ieee80211com *ic = ifp->if_l2com;
3255 ieee80211_runtask(ic, &sc->sc_radiontask);
3258 callout_reset(&sc->sc_rftimer, 2*hz, iwi_rfkill_poll, sc);
3262 iwi_radio_off(void *arg, int pending)
3264 struct iwi_softc *sc = arg;
3265 struct ieee80211com *ic = sc->sc_ifp->if_l2com;
3268 device_printf(sc->sc_dev, "radio turned off\n");
3270 ieee80211_notify_radio(ic, 0);
3273 iwi_stop_locked(sc);
3274 iwi_rfkill_poll(sc);
3279 iwi_sysctl_stats(SYSCTL_HANDLER_ARGS)
3281 struct iwi_softc *sc = arg1;
3282 uint32_t size, buf[128];
3284 memset(buf, 0, sizeof buf);
3286 if (!(sc->flags & IWI_FLAG_FW_INITED))
3287 return SYSCTL_OUT(req, buf, sizeof buf);
3289 size = min(CSR_READ_4(sc, IWI_CSR_TABLE0_SIZE), 128 - 1);
3290 CSR_READ_REGION_4(sc, IWI_CSR_TABLE0_BASE, &buf[1], size);
3292 return SYSCTL_OUT(req, buf, size);
3296 iwi_sysctl_radio(SYSCTL_HANDLER_ARGS)
3298 struct iwi_softc *sc = arg1;
3299 int val = !iwi_getrfkill(sc);
3301 return SYSCTL_OUT(req, &val, sizeof val);
3308 iwi_sysctlattach(struct iwi_softc *sc)
3310 struct sysctl_ctx_list *ctx;
3311 struct sysctl_oid *tree;
3313 ctx = &sc->sc_sysctl_ctx;
3314 sysctl_ctx_init(ctx);
3316 tree = SYSCTL_ADD_NODE(ctx, SYSCTL_STATIC_CHILDREN(_hw),
3318 device_get_nameunit(sc->sc_dev),
3321 device_printf(sc->sc_dev, "can't add sysctl node\n");
3325 sc->sc_sysctl_tree = tree;
3327 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "radio",
3328 CTLTYPE_INT | CTLFLAG_RD, sc, 0, iwi_sysctl_radio, "I",
3329 "radio transmitter switch state (0=off, 1=on)");
3331 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "stats",
3332 CTLTYPE_OPAQUE | CTLFLAG_RD, sc, 0, iwi_sysctl_stats, "S",
3336 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "bluetooth",
3337 CTLFLAG_RW, &sc->bluetooth, 0, "bluetooth coexistence");
3339 sc->antenna = IWI_ANTENNA_AUTO;
3340 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "antenna",
3341 CTLFLAG_RW, &sc->antenna, 0, "antenna (0=auto)");
3347 * Different cards have different capabilities. Some have three
3348 * led's while others have only one. The linux ipw driver defines
3349 * led's for link state (associated or not), band (11a, 11g, 11b),
3350 * and for link activity. We use one led and vary the blink rate
3351 * according to the tx/rx traffic a la the ath driver.
3354 static __inline uint32_t
3355 iwi_toggle_event(uint32_t r)
3357 return r &~ (IWI_RST_STANDBY | IWI_RST_GATE_ODMA |
3358 IWI_RST_GATE_IDMA | IWI_RST_GATE_ADMA);
3362 iwi_read_event(struct iwi_softc *sc)
3364 return MEM_READ_4(sc, IWI_MEM_EEPROM_EVENT);
3368 iwi_write_event(struct iwi_softc *sc, uint32_t v)
3370 MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, v);
3374 iwi_led_done(void *arg)
3376 struct iwi_softc *sc = arg;
3378 sc->sc_blinking = 0;
3382 * Turn the activity LED off: flip the pin and then set a timer so no
3383 * update will happen for the specified duration.
3386 iwi_led_off(void *arg)
3388 struct iwi_softc *sc = arg;
3391 v = iwi_read_event(sc);
3392 v &= ~sc->sc_ledpin;
3393 iwi_write_event(sc, iwi_toggle_event(v));
3394 callout_reset(&sc->sc_ledtimer, sc->sc_ledoff, iwi_led_done, sc);
3398 * Blink the LED according to the specified on/off times.
3401 iwi_led_blink(struct iwi_softc *sc, int on, int off)
3405 v = iwi_read_event(sc);
3407 iwi_write_event(sc, iwi_toggle_event(v));
3408 sc->sc_blinking = 1;
3409 sc->sc_ledoff = off;
3410 callout_reset(&sc->sc_ledtimer, on, iwi_led_off, sc);
3414 iwi_led_event(struct iwi_softc *sc, int event)
3416 #define N(a) (sizeof(a)/sizeof(a[0]))
3417 /* NB: on/off times from the Atheros NDIS driver, w/ permission */
3418 static const struct {
3419 u_int rate; /* tx/rx iwi rate */
3420 u_int16_t timeOn; /* LED on time (ms) */
3421 u_int16_t timeOff; /* LED off time (ms) */
3423 { IWI_RATE_OFDM54, 40, 10 },
3424 { IWI_RATE_OFDM48, 44, 11 },
3425 { IWI_RATE_OFDM36, 50, 13 },
3426 { IWI_RATE_OFDM24, 57, 14 },
3427 { IWI_RATE_OFDM18, 67, 16 },
3428 { IWI_RATE_OFDM12, 80, 20 },
3429 { IWI_RATE_DS11, 100, 25 },
3430 { IWI_RATE_OFDM9, 133, 34 },
3431 { IWI_RATE_OFDM6, 160, 40 },
3432 { IWI_RATE_DS5, 200, 50 },
3433 { 6, 240, 58 }, /* XXX 3Mb/s if it existed */
3434 { IWI_RATE_DS2, 267, 66 },
3435 { IWI_RATE_DS1, 400, 100 },
3436 { 0, 500, 130 }, /* unknown rate/polling */
3439 int j = 0; /* XXX silence compiler */
3441 sc->sc_ledevent = ticks; /* time of last event */
3442 if (sc->sc_blinking) /* don't interrupt active blink */
3446 j = N(blinkrates)-1;
3449 /* read current transmission rate from adapter */
3450 txrate = CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE);
3451 if (blinkrates[sc->sc_txrix].rate != txrate) {
3452 for (j = 0; j < N(blinkrates)-1; j++)
3453 if (blinkrates[j].rate == txrate)
3460 if (blinkrates[sc->sc_rxrix].rate != sc->sc_rxrate) {
3461 for (j = 0; j < N(blinkrates)-1; j++)
3462 if (blinkrates[j].rate == sc->sc_rxrate)
3469 /* XXX beware of overflow */
3470 iwi_led_blink(sc, (blinkrates[j].timeOn * hz) / 1000,
3471 (blinkrates[j].timeOff * hz) / 1000);
3476 iwi_sysctl_softled(SYSCTL_HANDLER_ARGS)
3478 struct iwi_softc *sc = arg1;
3479 int softled = sc->sc_softled;
3482 error = sysctl_handle_int(oidp, &softled, 0, req);
3483 if (error || !req->newptr)
3485 softled = (softled != 0);
3486 if (softled != sc->sc_softled) {
3488 uint32_t v = iwi_read_event(sc);
3489 v &= ~sc->sc_ledpin;
3490 iwi_write_event(sc, iwi_toggle_event(v));
3492 sc->sc_softled = softled;
3498 iwi_ledattach(struct iwi_softc *sc)
3500 struct sysctl_ctx_list *ctx = &sc->sc_sysctl_ctx;
3501 struct sysctl_oid *tree = sc->sc_sysctl_tree;
3503 sc->sc_blinking = 0;
3504 sc->sc_ledstate = 1;
3505 sc->sc_ledidle = (2700*hz)/1000; /* 2.7sec */
3506 callout_init(&sc->sc_ledtimer);
3508 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
3509 "softled", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
3510 iwi_sysctl_softled, "I", "enable/disable software LED support");
3511 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
3512 "ledpin", CTLFLAG_RW, &sc->sc_ledpin, 0,
3513 "pin setting to turn activity LED on");
3514 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
3515 "ledidle", CTLFLAG_RW, &sc->sc_ledidle, 0,
3516 "idle time for inactivity LED (ticks)");
3517 /* XXX for debugging */
3518 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
3519 "nictype", CTLFLAG_RD, &sc->sc_nictype, 0,
3520 "NIC type from EEPROM");
3522 sc->sc_ledpin = IWI_RST_LED_ACTIVITY;
3525 sc->sc_nictype = (iwi_read_prom_word(sc, IWI_EEPROM_NIC) >> 8) & 0xff;
3526 if (sc->sc_nictype == 1) {
3528 * NB: led's are reversed.
3530 sc->sc_ledpin = IWI_RST_LED_ASSOCIATED;
3535 iwi_scan_start(struct ieee80211com *ic)
3541 iwi_set_channel(struct ieee80211com *ic)
3543 struct ifnet *ifp = ic->ic_ifp;
3544 struct iwi_softc *sc = ifp->if_softc;
3545 if (sc->fw_state == IWI_FW_IDLE)
3546 iwi_setcurchan(sc, ic->ic_curchan->ic_ieee);
3550 iwi_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)
3552 struct ieee80211vap *vap = ss->ss_vap;
3553 struct ifnet *ifp = vap->iv_ic->ic_ifp;
3554 struct iwi_softc *sc = ifp->if_softc;
3558 if (iwi_scanchan(sc, maxdwell, 0))
3559 ieee80211_cancel_scan(vap);
3564 iwi_scan_mindwell(struct ieee80211_scan_state *ss)
3566 /* NB: don't try to abort scan; wait for firmware to finish */
3570 iwi_scan_end(struct ieee80211com *ic)
3572 struct ifnet *ifp = ic->ic_ifp;
3573 struct iwi_softc *sc = ifp->if_softc;
3577 sc->flags &= ~IWI_FLAG_CHANNEL_SCAN;
3578 /* NB: make sure we're still scanning */
3579 if (sc->fw_state == IWI_FW_SCANNING)
3580 iwi_cmd(sc, IWI_CMD_ABORT_SCAN, NULL, 0);