2 * Copyright (c) 2006,2007
3 * Damien Bergamini <damien.bergamini@free.fr>
4 * Benjamin Close <Benjamin.Close@clearchain.com>
5 * Copyright (c) 2015 Andriy Voskoboinyk <avos@FreeBSD.org>
7 * Permission to use, copy, modify, and distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20 #include <sys/cdefs.h>
21 __FBSDID("$FreeBSD$");
24 * Driver for Intel PRO/Wireless 3945ABG 802.11 network adapters.
26 * The 3945ABG network adapter doesn't use traditional hardware as
27 * many other adaptors do. Instead at run time the eeprom is set into a known
28 * state and told to load boot firmware. The boot firmware loads an init and a
29 * main binary firmware image into SRAM on the card via DMA.
30 * Once the firmware is loaded, the driver/hw then
31 * communicate by way of circular dma rings via the SRAM to the firmware.
33 * There is 6 memory rings. 1 command ring, 1 rx data ring & 4 tx data rings.
34 * The 4 tx data rings allow for prioritization QoS.
36 * The rx data ring consists of 32 dma buffers. Two registers are used to
37 * indicate where in the ring the driver and the firmware are up to. The
38 * driver sets the initial read index (reg1) and the initial write index (reg2),
39 * the firmware updates the read index (reg1) on rx of a packet and fires an
40 * interrupt. The driver then processes the buffers starting at reg1 indicating
41 * to the firmware which buffers have been accessed by updating reg2. At the
42 * same time allocating new memory for the processed buffer.
44 * A similar thing happens with the tx rings. The difference is the firmware
45 * stop processing buffers once the queue is full and until confirmation
46 * of a successful transmition (tx_done) has occurred.
48 * The command ring operates in the same manner as the tx queues.
50 * All communication direct to the card (ie eeprom) is classed as Stage1
53 * All communication via the firmware to the card is classed as State2.
54 * The firmware consists of 2 parts. A bootstrap firmware and a runtime
55 * firmware. The bootstrap firmware and runtime firmware are loaded
56 * from host memory via dma to the card then told to execute. From this point
57 * on the majority of communications between the driver and the card goes
64 #include <sys/param.h>
65 #include <sys/sysctl.h>
66 #include <sys/sockio.h>
68 #include <sys/kernel.h>
69 #include <sys/socket.h>
70 #include <sys/systm.h>
71 #include <sys/malloc.h>
72 #include <sys/queue.h>
73 #include <sys/taskqueue.h>
74 #include <sys/module.h>
76 #include <sys/endian.h>
77 #include <sys/linker.h>
78 #include <sys/firmware.h>
80 #include <machine/bus.h>
81 #include <machine/resource.h>
84 #include <dev/pci/pcireg.h>
85 #include <dev/pci/pcivar.h>
89 #include <net/if_var.h>
90 #include <net/if_arp.h>
91 #include <net/ethernet.h>
92 #include <net/if_dl.h>
93 #include <net/if_media.h>
94 #include <net/if_types.h>
96 #include <netinet/in.h>
97 #include <netinet/in_systm.h>
98 #include <netinet/in_var.h>
99 #include <netinet/if_ether.h>
100 #include <netinet/ip.h>
102 #include <net80211/ieee80211_var.h>
103 #include <net80211/ieee80211_radiotap.h>
104 #include <net80211/ieee80211_regdomain.h>
105 #include <net80211/ieee80211_ratectl.h>
107 #include <dev/wpi/if_wpireg.h>
108 #include <dev/wpi/if_wpivar.h>
109 #include <dev/wpi/if_wpi_debug.h>
118 static const struct wpi_ident wpi_ident_table[] = {
119 /* The below entries support ABG regardless of the subid */
120 { 0x8086, 0x4222, 0x0, "Intel(R) PRO/Wireless 3945ABG" },
121 { 0x8086, 0x4227, 0x0, "Intel(R) PRO/Wireless 3945ABG" },
122 /* The below entries only support BG */
123 { 0x8086, 0x4222, 0x1005, "Intel(R) PRO/Wireless 3945BG" },
124 { 0x8086, 0x4222, 0x1034, "Intel(R) PRO/Wireless 3945BG" },
125 { 0x8086, 0x4227, 0x1014, "Intel(R) PRO/Wireless 3945BG" },
126 { 0x8086, 0x4222, 0x1044, "Intel(R) PRO/Wireless 3945BG" },
130 static int wpi_probe(device_t);
131 static int wpi_attach(device_t);
132 static void wpi_radiotap_attach(struct wpi_softc *);
133 static void wpi_sysctlattach(struct wpi_softc *);
134 static void wpi_init_beacon(struct wpi_vap *);
135 static struct ieee80211vap *wpi_vap_create(struct ieee80211com *,
136 const char [IFNAMSIZ], int, enum ieee80211_opmode, int,
137 const uint8_t [IEEE80211_ADDR_LEN],
138 const uint8_t [IEEE80211_ADDR_LEN]);
139 static void wpi_vap_delete(struct ieee80211vap *);
140 static int wpi_detach(device_t);
141 static int wpi_shutdown(device_t);
142 static int wpi_suspend(device_t);
143 static int wpi_resume(device_t);
144 static int wpi_nic_lock(struct wpi_softc *);
145 static int wpi_read_prom_data(struct wpi_softc *, uint32_t, void *, int);
146 static void wpi_dma_map_addr(void *, bus_dma_segment_t *, int, int);
147 static int wpi_dma_contig_alloc(struct wpi_softc *, struct wpi_dma_info *,
148 void **, bus_size_t, bus_size_t);
149 static void wpi_dma_contig_free(struct wpi_dma_info *);
150 static int wpi_alloc_shared(struct wpi_softc *);
151 static void wpi_free_shared(struct wpi_softc *);
152 static int wpi_alloc_fwmem(struct wpi_softc *);
153 static void wpi_free_fwmem(struct wpi_softc *);
154 static int wpi_alloc_rx_ring(struct wpi_softc *);
155 static void wpi_update_rx_ring(struct wpi_softc *);
156 static void wpi_update_rx_ring_ps(struct wpi_softc *);
157 static void wpi_reset_rx_ring(struct wpi_softc *);
158 static void wpi_free_rx_ring(struct wpi_softc *);
159 static int wpi_alloc_tx_ring(struct wpi_softc *, struct wpi_tx_ring *,
161 static void wpi_update_tx_ring(struct wpi_softc *, struct wpi_tx_ring *);
162 static void wpi_update_tx_ring_ps(struct wpi_softc *,
163 struct wpi_tx_ring *);
164 static void wpi_reset_tx_ring(struct wpi_softc *, struct wpi_tx_ring *);
165 static void wpi_free_tx_ring(struct wpi_softc *, struct wpi_tx_ring *);
166 static int wpi_read_eeprom(struct wpi_softc *,
167 uint8_t macaddr[IEEE80211_ADDR_LEN]);
168 static uint32_t wpi_eeprom_channel_flags(struct wpi_eeprom_chan *);
169 static void wpi_read_eeprom_band(struct wpi_softc *, uint8_t, int, int *,
170 struct ieee80211_channel[]);
171 static int wpi_read_eeprom_channels(struct wpi_softc *, uint8_t);
172 static struct wpi_eeprom_chan *wpi_find_eeprom_channel(struct wpi_softc *,
173 struct ieee80211_channel *);
174 static void wpi_getradiocaps(struct ieee80211com *, int, int *,
175 struct ieee80211_channel[]);
176 static int wpi_setregdomain(struct ieee80211com *,
177 struct ieee80211_regdomain *, int,
178 struct ieee80211_channel[]);
179 static int wpi_read_eeprom_group(struct wpi_softc *, uint8_t);
180 static struct ieee80211_node *wpi_node_alloc(struct ieee80211vap *,
181 const uint8_t mac[IEEE80211_ADDR_LEN]);
182 static void wpi_node_free(struct ieee80211_node *);
183 static void wpi_ibss_recv_mgmt(struct ieee80211_node *, struct mbuf *, int,
184 const struct ieee80211_rx_stats *,
186 static void wpi_restore_node(void *, struct ieee80211_node *);
187 static void wpi_restore_node_table(struct wpi_softc *, struct wpi_vap *);
188 static int wpi_newstate(struct ieee80211vap *, enum ieee80211_state, int);
189 static void wpi_calib_timeout(void *);
190 static void wpi_rx_done(struct wpi_softc *, struct wpi_rx_desc *,
191 struct wpi_rx_data *);
192 static void wpi_rx_statistics(struct wpi_softc *, struct wpi_rx_desc *,
193 struct wpi_rx_data *);
194 static void wpi_tx_done(struct wpi_softc *, struct wpi_rx_desc *);
195 static void wpi_cmd_done(struct wpi_softc *, struct wpi_rx_desc *);
196 static void wpi_notif_intr(struct wpi_softc *);
197 static void wpi_wakeup_intr(struct wpi_softc *);
199 static void wpi_debug_registers(struct wpi_softc *);
201 static void wpi_fatal_intr(struct wpi_softc *);
202 static void wpi_intr(void *);
203 static void wpi_free_txfrags(struct wpi_softc *, uint16_t);
204 static int wpi_cmd2(struct wpi_softc *, struct wpi_buf *);
205 static int wpi_tx_data(struct wpi_softc *, struct mbuf *,
206 struct ieee80211_node *);
207 static int wpi_tx_data_raw(struct wpi_softc *, struct mbuf *,
208 struct ieee80211_node *,
209 const struct ieee80211_bpf_params *);
210 static int wpi_raw_xmit(struct ieee80211_node *, struct mbuf *,
211 const struct ieee80211_bpf_params *);
212 static int wpi_transmit(struct ieee80211com *, struct mbuf *);
213 static void wpi_watchdog_rfkill(void *);
214 static void wpi_scan_timeout(void *);
215 static void wpi_tx_timeout(void *);
216 static void wpi_parent(struct ieee80211com *);
217 static int wpi_cmd(struct wpi_softc *, uint8_t, const void *, uint16_t,
219 static int wpi_mrr_setup(struct wpi_softc *);
220 static int wpi_add_node(struct wpi_softc *, struct ieee80211_node *);
221 static int wpi_add_broadcast_node(struct wpi_softc *, int);
222 static int wpi_add_ibss_node(struct wpi_softc *, struct ieee80211_node *);
223 static void wpi_del_node(struct wpi_softc *, struct ieee80211_node *);
224 static int wpi_updateedca(struct ieee80211com *);
225 static void wpi_set_promisc(struct wpi_softc *);
226 static void wpi_update_promisc(struct ieee80211com *);
227 static void wpi_update_mcast(struct ieee80211com *);
228 static void wpi_set_led(struct wpi_softc *, uint8_t, uint8_t, uint8_t);
229 static int wpi_set_timing(struct wpi_softc *, struct ieee80211_node *);
230 static void wpi_power_calibration(struct wpi_softc *);
231 static int wpi_set_txpower(struct wpi_softc *, int);
232 static int wpi_get_power_index(struct wpi_softc *,
233 struct wpi_power_group *, uint8_t, int, int);
234 static int wpi_set_pslevel(struct wpi_softc *, uint8_t, int, int);
235 static int wpi_send_btcoex(struct wpi_softc *);
236 static int wpi_send_rxon(struct wpi_softc *, int, int);
237 static int wpi_config(struct wpi_softc *);
238 static uint16_t wpi_get_active_dwell_time(struct wpi_softc *,
239 struct ieee80211_channel *, uint8_t);
240 static uint16_t wpi_limit_dwell(struct wpi_softc *, uint16_t);
241 static uint16_t wpi_get_passive_dwell_time(struct wpi_softc *,
242 struct ieee80211_channel *);
243 static uint32_t wpi_get_scan_pause_time(uint32_t, uint16_t);
244 static int wpi_scan(struct wpi_softc *, struct ieee80211_channel *);
245 static int wpi_auth(struct wpi_softc *, struct ieee80211vap *);
246 static int wpi_config_beacon(struct wpi_vap *);
247 static int wpi_setup_beacon(struct wpi_softc *, struct ieee80211_node *);
248 static void wpi_update_beacon(struct ieee80211vap *, int);
249 static void wpi_newassoc(struct ieee80211_node *, int);
250 static int wpi_run(struct wpi_softc *, struct ieee80211vap *);
251 static int wpi_load_key(struct ieee80211_node *,
252 const struct ieee80211_key *);
253 static void wpi_load_key_cb(void *, struct ieee80211_node *);
254 static int wpi_set_global_keys(struct ieee80211_node *);
255 static int wpi_del_key(struct ieee80211_node *,
256 const struct ieee80211_key *);
257 static void wpi_del_key_cb(void *, struct ieee80211_node *);
258 static int wpi_process_key(struct ieee80211vap *,
259 const struct ieee80211_key *, int);
260 static int wpi_key_set(struct ieee80211vap *,
261 const struct ieee80211_key *);
262 static int wpi_key_delete(struct ieee80211vap *,
263 const struct ieee80211_key *);
264 static int wpi_post_alive(struct wpi_softc *);
265 static int wpi_load_bootcode(struct wpi_softc *, const uint8_t *,
267 static int wpi_load_firmware(struct wpi_softc *);
268 static int wpi_read_firmware(struct wpi_softc *);
269 static void wpi_unload_firmware(struct wpi_softc *);
270 static int wpi_clock_wait(struct wpi_softc *);
271 static int wpi_apm_init(struct wpi_softc *);
272 static void wpi_apm_stop_master(struct wpi_softc *);
273 static void wpi_apm_stop(struct wpi_softc *);
274 static void wpi_nic_config(struct wpi_softc *);
275 static int wpi_hw_init(struct wpi_softc *);
276 static void wpi_hw_stop(struct wpi_softc *);
277 static void wpi_radio_on(void *, int);
278 static void wpi_radio_off(void *, int);
279 static int wpi_init(struct wpi_softc *);
280 static void wpi_stop_locked(struct wpi_softc *);
281 static void wpi_stop(struct wpi_softc *);
282 static void wpi_scan_start(struct ieee80211com *);
283 static void wpi_scan_end(struct ieee80211com *);
284 static void wpi_set_channel(struct ieee80211com *);
285 static void wpi_scan_curchan(struct ieee80211_scan_state *, unsigned long);
286 static void wpi_scan_mindwell(struct ieee80211_scan_state *);
288 static device_method_t wpi_methods[] = {
289 /* Device interface */
290 DEVMETHOD(device_probe, wpi_probe),
291 DEVMETHOD(device_attach, wpi_attach),
292 DEVMETHOD(device_detach, wpi_detach),
293 DEVMETHOD(device_shutdown, wpi_shutdown),
294 DEVMETHOD(device_suspend, wpi_suspend),
295 DEVMETHOD(device_resume, wpi_resume),
300 static driver_t wpi_driver = {
303 sizeof (struct wpi_softc)
305 static devclass_t wpi_devclass;
307 DRIVER_MODULE(wpi, pci, wpi_driver, wpi_devclass, NULL, NULL);
309 MODULE_VERSION(wpi, 1);
311 MODULE_DEPEND(wpi, pci, 1, 1, 1);
312 MODULE_DEPEND(wpi, wlan, 1, 1, 1);
313 MODULE_DEPEND(wpi, firmware, 1, 1, 1);
316 wpi_probe(device_t dev)
318 const struct wpi_ident *ident;
320 for (ident = wpi_ident_table; ident->name != NULL; ident++) {
321 if (pci_get_vendor(dev) == ident->vendor &&
322 pci_get_device(dev) == ident->device) {
323 device_set_desc(dev, ident->name);
324 return (BUS_PROBE_DEFAULT);
331 wpi_attach(device_t dev)
333 struct wpi_softc *sc = (struct wpi_softc *)device_get_softc(dev);
334 struct ieee80211com *ic;
339 const struct wpi_ident *ident;
345 error = resource_int_value(device_get_name(sc->sc_dev),
346 device_get_unit(sc->sc_dev), "debug", &(sc->sc_debug));
353 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
356 * Get the offset of the PCI Express Capability Structure in PCI
357 * Configuration Space.
359 error = pci_find_cap(dev, PCIY_EXPRESS, &sc->sc_cap_off);
361 device_printf(dev, "PCIe capability structure not found!\n");
366 * Some card's only support 802.11b/g not a, check to see if
367 * this is one such card. A 0x0 in the subdevice table indicates
368 * the entire subdevice range is to be ignored.
371 for (ident = wpi_ident_table; ident->name != NULL; ident++) {
372 if (ident->subdevice &&
373 pci_get_subdevice(dev) == ident->subdevice) {
380 /* Clear device-specific "PCI retry timeout" register (41h). */
381 pci_write_config(dev, 0x41, 0, 1);
383 /* Enable bus-mastering. */
384 pci_enable_busmaster(dev);
387 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
389 if (sc->mem == NULL) {
390 device_printf(dev, "can't map mem space\n");
393 sc->sc_st = rman_get_bustag(sc->mem);
394 sc->sc_sh = rman_get_bushandle(sc->mem);
397 if (pci_alloc_msi(dev, &rid) == 0)
401 /* Install interrupt handler. */
402 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE |
403 (rid != 0 ? 0 : RF_SHAREABLE));
404 if (sc->irq == NULL) {
405 device_printf(dev, "can't map interrupt\n");
411 WPI_TX_LOCK_INIT(sc);
412 WPI_RXON_LOCK_INIT(sc);
413 WPI_NT_LOCK_INIT(sc);
414 WPI_TXQ_LOCK_INIT(sc);
415 WPI_TXQ_STATE_LOCK_INIT(sc);
417 /* Allocate DMA memory for firmware transfers. */
418 if ((error = wpi_alloc_fwmem(sc)) != 0) {
420 "could not allocate memory for firmware, error %d\n",
425 /* Allocate shared page. */
426 if ((error = wpi_alloc_shared(sc)) != 0) {
427 device_printf(dev, "could not allocate shared page\n");
431 /* Allocate TX rings - 4 for QoS purposes, 1 for commands. */
432 for (i = 0; i < WPI_DRV_NTXQUEUES; i++) {
433 if ((error = wpi_alloc_tx_ring(sc, &sc->txq[i], i)) != 0) {
435 "could not allocate TX ring %d, error %d\n", i,
441 /* Allocate RX ring. */
442 if ((error = wpi_alloc_rx_ring(sc)) != 0) {
443 device_printf(dev, "could not allocate RX ring, error %d\n",
448 /* Clear pending interrupts. */
449 WPI_WRITE(sc, WPI_INT, 0xffffffff);
453 ic->ic_name = device_get_nameunit(dev);
454 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
455 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
457 /* Set device capabilities. */
459 IEEE80211_C_STA /* station mode supported */
460 | IEEE80211_C_IBSS /* IBSS mode supported */
461 | IEEE80211_C_HOSTAP /* Host access point mode */
462 | IEEE80211_C_MONITOR /* monitor mode supported */
463 | IEEE80211_C_AHDEMO /* adhoc demo mode */
464 | IEEE80211_C_BGSCAN /* capable of bg scanning */
465 | IEEE80211_C_TXFRAG /* handle tx frags */
466 | IEEE80211_C_TXPMGT /* tx power management */
467 | IEEE80211_C_SHSLOT /* short slot time supported */
468 | IEEE80211_C_WPA /* 802.11i */
469 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
470 | IEEE80211_C_WME /* 802.11e */
471 | IEEE80211_C_PMGT /* Station-side power mgmt */
475 IEEE80211_CRYPTO_AES_CCM;
478 * Read in the eeprom and also setup the channels for
479 * net80211. We don't set the rates as net80211 does this for us
481 if ((error = wpi_read_eeprom(sc, ic->ic_macaddr)) != 0) {
482 device_printf(dev, "could not read EEPROM, error %d\n",
489 device_printf(sc->sc_dev, "Regulatory Domain: %.4s\n",
491 device_printf(sc->sc_dev, "Hardware Type: %c\n",
492 sc->type > 1 ? 'B': '?');
493 device_printf(sc->sc_dev, "Hardware Revision: %c\n",
494 ((sc->rev & 0xf0) == 0xd0) ? 'D': '?');
495 device_printf(sc->sc_dev, "SKU %s support 802.11a\n",
496 supportsa ? "does" : "does not");
498 /* XXX hw_config uses the PCIDEV for the Hardware rev. Must
499 check what sc->rev really represents - benjsc 20070615 */
503 ieee80211_ifattach(ic);
504 ic->ic_vap_create = wpi_vap_create;
505 ic->ic_vap_delete = wpi_vap_delete;
506 ic->ic_parent = wpi_parent;
507 ic->ic_raw_xmit = wpi_raw_xmit;
508 ic->ic_transmit = wpi_transmit;
509 ic->ic_node_alloc = wpi_node_alloc;
510 sc->sc_node_free = ic->ic_node_free;
511 ic->ic_node_free = wpi_node_free;
512 ic->ic_wme.wme_update = wpi_updateedca;
513 ic->ic_update_promisc = wpi_update_promisc;
514 ic->ic_update_mcast = wpi_update_mcast;
515 ic->ic_newassoc = wpi_newassoc;
516 ic->ic_scan_start = wpi_scan_start;
517 ic->ic_scan_end = wpi_scan_end;
518 ic->ic_set_channel = wpi_set_channel;
519 ic->ic_scan_curchan = wpi_scan_curchan;
520 ic->ic_scan_mindwell = wpi_scan_mindwell;
521 ic->ic_getradiocaps = wpi_getradiocaps;
522 ic->ic_setregdomain = wpi_setregdomain;
524 sc->sc_update_rx_ring = wpi_update_rx_ring;
525 sc->sc_update_tx_ring = wpi_update_tx_ring;
527 wpi_radiotap_attach(sc);
529 /* Setup Tx status flags (constant). */
530 sc->sc_txs.flags = IEEE80211_RATECTL_STATUS_PKTLEN |
531 IEEE80211_RATECTL_STATUS_SHORT_RETRY |
532 IEEE80211_RATECTL_STATUS_LONG_RETRY;
534 callout_init_mtx(&sc->calib_to, &sc->rxon_mtx, 0);
535 callout_init_mtx(&sc->scan_timeout, &sc->rxon_mtx, 0);
536 callout_init_mtx(&sc->tx_timeout, &sc->txq_state_mtx, 0);
537 callout_init_mtx(&sc->watchdog_rfkill, &sc->sc_mtx, 0);
538 TASK_INIT(&sc->sc_radiooff_task, 0, wpi_radio_off, sc);
539 TASK_INIT(&sc->sc_radioon_task, 0, wpi_radio_on, sc);
541 wpi_sysctlattach(sc);
544 * Hook our interrupt after all initialization is complete.
546 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
547 NULL, wpi_intr, sc, &sc->sc_ih);
549 device_printf(dev, "can't establish interrupt, error %d\n",
555 ieee80211_announce(ic);
558 if (sc->sc_debug & WPI_DEBUG_HW)
559 ieee80211_announce_channels(ic);
562 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
565 fail: wpi_detach(dev);
566 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
571 * Attach the interface to 802.11 radiotap.
574 wpi_radiotap_attach(struct wpi_softc *sc)
576 struct wpi_rx_radiotap_header *rxtap = &sc->sc_rxtap;
577 struct wpi_tx_radiotap_header *txtap = &sc->sc_txtap;
579 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
580 ieee80211_radiotap_attach(&sc->sc_ic,
581 &txtap->wt_ihdr, sizeof(*txtap), WPI_TX_RADIOTAP_PRESENT,
582 &rxtap->wr_ihdr, sizeof(*rxtap), WPI_RX_RADIOTAP_PRESENT);
583 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
587 wpi_sysctlattach(struct wpi_softc *sc)
590 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev);
591 struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev);
593 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
594 "debug", CTLFLAG_RW, &sc->sc_debug, sc->sc_debug,
595 "control debugging printfs");
600 wpi_init_beacon(struct wpi_vap *wvp)
602 struct wpi_buf *bcn = &wvp->wv_bcbuf;
603 struct wpi_cmd_beacon *cmd = (struct wpi_cmd_beacon *)&bcn->data;
605 cmd->id = WPI_ID_BROADCAST;
606 cmd->ofdm_mask = 0xff;
607 cmd->cck_mask = 0x0f;
608 cmd->lifetime = htole32(WPI_LIFETIME_INFINITE);
611 * XXX WPI_TX_AUTO_SEQ seems to be ignored - workaround this issue
612 * XXX by using WPI_TX_NEED_ACK instead (with some side effects).
614 cmd->flags = htole32(WPI_TX_NEED_ACK | WPI_TX_INSERT_TSTAMP);
616 bcn->code = WPI_CMD_SET_BEACON;
617 bcn->ac = WPI_CMD_QUEUE_NUM;
618 bcn->size = sizeof(struct wpi_cmd_beacon);
621 static struct ieee80211vap *
622 wpi_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
623 enum ieee80211_opmode opmode, int flags,
624 const uint8_t bssid[IEEE80211_ADDR_LEN],
625 const uint8_t mac[IEEE80211_ADDR_LEN])
628 struct ieee80211vap *vap;
630 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
633 wvp = malloc(sizeof(struct wpi_vap), M_80211_VAP, M_WAITOK | M_ZERO);
635 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid);
637 if (opmode == IEEE80211_M_IBSS || opmode == IEEE80211_M_HOSTAP) {
638 WPI_VAP_LOCK_INIT(wvp);
639 wpi_init_beacon(wvp);
642 /* Override with driver methods. */
643 vap->iv_key_set = wpi_key_set;
644 vap->iv_key_delete = wpi_key_delete;
645 if (opmode == IEEE80211_M_IBSS) {
646 wvp->wv_recv_mgmt = vap->iv_recv_mgmt;
647 vap->iv_recv_mgmt = wpi_ibss_recv_mgmt;
649 wvp->wv_newstate = vap->iv_newstate;
650 vap->iv_newstate = wpi_newstate;
651 vap->iv_update_beacon = wpi_update_beacon;
652 vap->iv_max_aid = WPI_ID_IBSS_MAX - WPI_ID_IBSS_MIN + 1;
654 ieee80211_ratectl_init(vap);
655 /* Complete setup. */
656 ieee80211_vap_attach(vap, ieee80211_media_change,
657 ieee80211_media_status, mac);
658 ic->ic_opmode = opmode;
663 wpi_vap_delete(struct ieee80211vap *vap)
665 struct wpi_vap *wvp = WPI_VAP(vap);
666 struct wpi_buf *bcn = &wvp->wv_bcbuf;
667 enum ieee80211_opmode opmode = vap->iv_opmode;
669 ieee80211_ratectl_deinit(vap);
670 ieee80211_vap_detach(vap);
672 if (opmode == IEEE80211_M_IBSS || opmode == IEEE80211_M_HOSTAP) {
676 WPI_VAP_LOCK_DESTROY(wvp);
679 free(wvp, M_80211_VAP);
683 wpi_detach(device_t dev)
685 struct wpi_softc *sc = device_get_softc(dev);
686 struct ieee80211com *ic = &sc->sc_ic;
689 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
691 if (ic->ic_vap_create == wpi_vap_create) {
692 ieee80211_draintask(ic, &sc->sc_radioon_task);
693 ieee80211_draintask(ic, &sc->sc_radiooff_task);
697 callout_drain(&sc->watchdog_rfkill);
698 callout_drain(&sc->tx_timeout);
699 callout_drain(&sc->scan_timeout);
700 callout_drain(&sc->calib_to);
701 ieee80211_ifdetach(ic);
704 /* Uninstall interrupt handler. */
705 if (sc->irq != NULL) {
706 bus_teardown_intr(dev, sc->irq, sc->sc_ih);
707 bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(sc->irq),
709 pci_release_msi(dev);
712 if (sc->txq[0].data_dmat) {
713 /* Free DMA resources. */
714 for (qid = 0; qid < WPI_DRV_NTXQUEUES; qid++)
715 wpi_free_tx_ring(sc, &sc->txq[qid]);
717 wpi_free_rx_ring(sc);
725 bus_release_resource(dev, SYS_RES_MEMORY,
726 rman_get_rid(sc->mem), sc->mem);
728 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
729 WPI_TXQ_STATE_LOCK_DESTROY(sc);
730 WPI_TXQ_LOCK_DESTROY(sc);
731 WPI_NT_LOCK_DESTROY(sc);
732 WPI_RXON_LOCK_DESTROY(sc);
733 WPI_TX_LOCK_DESTROY(sc);
734 WPI_LOCK_DESTROY(sc);
739 wpi_shutdown(device_t dev)
741 struct wpi_softc *sc = device_get_softc(dev);
748 wpi_suspend(device_t dev)
750 struct wpi_softc *sc = device_get_softc(dev);
751 struct ieee80211com *ic = &sc->sc_ic;
753 ieee80211_suspend_all(ic);
758 wpi_resume(device_t dev)
760 struct wpi_softc *sc = device_get_softc(dev);
761 struct ieee80211com *ic = &sc->sc_ic;
763 /* Clear device-specific "PCI retry timeout" register (41h). */
764 pci_write_config(dev, 0x41, 0, 1);
766 ieee80211_resume_all(ic);
771 * Grab exclusive access to NIC memory.
774 wpi_nic_lock(struct wpi_softc *sc)
778 /* Request exclusive access to NIC. */
779 WPI_SETBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ);
781 /* Spin until we actually get the lock. */
782 for (ntries = 0; ntries < 1000; ntries++) {
783 if ((WPI_READ(sc, WPI_GP_CNTRL) &
784 (WPI_GP_CNTRL_MAC_ACCESS_ENA | WPI_GP_CNTRL_SLEEP)) ==
785 WPI_GP_CNTRL_MAC_ACCESS_ENA)
790 device_printf(sc->sc_dev, "could not lock memory\n");
796 * Release lock on NIC memory.
799 wpi_nic_unlock(struct wpi_softc *sc)
801 WPI_CLRBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ);
804 static __inline uint32_t
805 wpi_prph_read(struct wpi_softc *sc, uint32_t addr)
807 WPI_WRITE(sc, WPI_PRPH_RADDR, WPI_PRPH_DWORD | addr);
808 WPI_BARRIER_READ_WRITE(sc);
809 return WPI_READ(sc, WPI_PRPH_RDATA);
813 wpi_prph_write(struct wpi_softc *sc, uint32_t addr, uint32_t data)
815 WPI_WRITE(sc, WPI_PRPH_WADDR, WPI_PRPH_DWORD | addr);
816 WPI_BARRIER_WRITE(sc);
817 WPI_WRITE(sc, WPI_PRPH_WDATA, data);
821 wpi_prph_setbits(struct wpi_softc *sc, uint32_t addr, uint32_t mask)
823 wpi_prph_write(sc, addr, wpi_prph_read(sc, addr) | mask);
827 wpi_prph_clrbits(struct wpi_softc *sc, uint32_t addr, uint32_t mask)
829 wpi_prph_write(sc, addr, wpi_prph_read(sc, addr) & ~mask);
833 wpi_prph_write_region_4(struct wpi_softc *sc, uint32_t addr,
834 const uint32_t *data, uint32_t count)
836 for (; count != 0; count--, data++, addr += 4)
837 wpi_prph_write(sc, addr, *data);
840 static __inline uint32_t
841 wpi_mem_read(struct wpi_softc *sc, uint32_t addr)
843 WPI_WRITE(sc, WPI_MEM_RADDR, addr);
844 WPI_BARRIER_READ_WRITE(sc);
845 return WPI_READ(sc, WPI_MEM_RDATA);
849 wpi_mem_read_region_4(struct wpi_softc *sc, uint32_t addr, uint32_t *data,
852 for (; count > 0; count--, addr += 4)
853 *data++ = wpi_mem_read(sc, addr);
857 wpi_read_prom_data(struct wpi_softc *sc, uint32_t addr, void *data, int count)
863 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
865 if ((error = wpi_nic_lock(sc)) != 0)
868 for (; count > 0; count -= 2, addr++) {
869 WPI_WRITE(sc, WPI_EEPROM, addr << 2);
870 for (ntries = 0; ntries < 10; ntries++) {
871 val = WPI_READ(sc, WPI_EEPROM);
872 if (val & WPI_EEPROM_READ_VALID)
877 device_printf(sc->sc_dev,
878 "timeout reading ROM at 0x%x\n", addr);
888 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
894 wpi_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
898 KASSERT(nsegs == 1, ("too many DMA segments, %d should be 1", nsegs));
899 *(bus_addr_t *)arg = segs[0].ds_addr;
903 * Allocates a contiguous block of dma memory of the requested size and
907 wpi_dma_contig_alloc(struct wpi_softc *sc, struct wpi_dma_info *dma,
908 void **kvap, bus_size_t size, bus_size_t alignment)
915 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), alignment,
916 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, size,
917 1, size, 0, NULL, NULL, &dma->tag);
921 error = bus_dmamem_alloc(dma->tag, (void **)&dma->vaddr,
922 BUS_DMA_NOWAIT | BUS_DMA_ZERO | BUS_DMA_COHERENT, &dma->map);
926 error = bus_dmamap_load(dma->tag, dma->map, dma->vaddr, size,
927 wpi_dma_map_addr, &dma->paddr, BUS_DMA_NOWAIT);
931 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
938 fail: wpi_dma_contig_free(dma);
943 wpi_dma_contig_free(struct wpi_dma_info *dma)
945 if (dma->vaddr != NULL) {
946 bus_dmamap_sync(dma->tag, dma->map,
947 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
948 bus_dmamap_unload(dma->tag, dma->map);
949 bus_dmamem_free(dma->tag, dma->vaddr, dma->map);
952 if (dma->tag != NULL) {
953 bus_dma_tag_destroy(dma->tag);
959 * Allocate a shared page between host and NIC.
962 wpi_alloc_shared(struct wpi_softc *sc)
964 /* Shared buffer must be aligned on a 4KB boundary. */
965 return wpi_dma_contig_alloc(sc, &sc->shared_dma,
966 (void **)&sc->shared, sizeof (struct wpi_shared), 4096);
970 wpi_free_shared(struct wpi_softc *sc)
972 wpi_dma_contig_free(&sc->shared_dma);
976 * Allocate DMA-safe memory for firmware transfer.
979 wpi_alloc_fwmem(struct wpi_softc *sc)
981 /* Must be aligned on a 16-byte boundary. */
982 return wpi_dma_contig_alloc(sc, &sc->fw_dma, NULL,
983 WPI_FW_TEXT_MAXSZ + WPI_FW_DATA_MAXSZ, 16);
987 wpi_free_fwmem(struct wpi_softc *sc)
989 wpi_dma_contig_free(&sc->fw_dma);
993 wpi_alloc_rx_ring(struct wpi_softc *sc)
995 struct wpi_rx_ring *ring = &sc->rxq;
1002 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
1004 /* Allocate RX descriptors (16KB aligned.) */
1005 size = WPI_RX_RING_COUNT * sizeof (uint32_t);
1006 error = wpi_dma_contig_alloc(sc, &ring->desc_dma,
1007 (void **)&ring->desc, size, WPI_RING_DMA_ALIGN);
1009 device_printf(sc->sc_dev,
1010 "%s: could not allocate RX ring DMA memory, error %d\n",
1015 /* Create RX buffer DMA tag. */
1016 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
1017 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
1018 MJUMPAGESIZE, 1, MJUMPAGESIZE, 0, NULL, NULL, &ring->data_dmat);
1020 device_printf(sc->sc_dev,
1021 "%s: could not create RX buf DMA tag, error %d\n",
1027 * Allocate and map RX buffers.
1029 for (i = 0; i < WPI_RX_RING_COUNT; i++) {
1030 struct wpi_rx_data *data = &ring->data[i];
1033 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
1035 device_printf(sc->sc_dev,
1036 "%s: could not create RX buf DMA map, error %d\n",
1041 data->m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE);
1042 if (data->m == NULL) {
1043 device_printf(sc->sc_dev,
1044 "%s: could not allocate RX mbuf\n", __func__);
1049 error = bus_dmamap_load(ring->data_dmat, data->map,
1050 mtod(data->m, void *), MJUMPAGESIZE, wpi_dma_map_addr,
1051 &paddr, BUS_DMA_NOWAIT);
1052 if (error != 0 && error != EFBIG) {
1053 device_printf(sc->sc_dev,
1054 "%s: can't map mbuf (error %d)\n", __func__,
1059 /* Set physical address of RX buffer. */
1060 ring->desc[i] = htole32(paddr);
1063 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
1064 BUS_DMASYNC_PREWRITE);
1066 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
1070 fail: wpi_free_rx_ring(sc);
1072 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
1078 wpi_update_rx_ring(struct wpi_softc *sc)
1080 WPI_WRITE(sc, WPI_FH_RX_WPTR, sc->rxq.cur & ~7);
1084 wpi_update_rx_ring_ps(struct wpi_softc *sc)
1086 struct wpi_rx_ring *ring = &sc->rxq;
1088 if (ring->update != 0) {
1089 /* Wait for INT_WAKEUP event. */
1094 WPI_SETBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ);
1095 if (WPI_READ(sc, WPI_GP_CNTRL) & WPI_GP_CNTRL_SLEEP) {
1096 DPRINTF(sc, WPI_DEBUG_PWRSAVE, "%s: wakeup request\n",
1100 wpi_update_rx_ring(sc);
1101 WPI_CLRBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ);
1107 wpi_reset_rx_ring(struct wpi_softc *sc)
1109 struct wpi_rx_ring *ring = &sc->rxq;
1112 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
1114 if (wpi_nic_lock(sc) == 0) {
1115 WPI_WRITE(sc, WPI_FH_RX_CONFIG, 0);
1116 for (ntries = 0; ntries < 1000; ntries++) {
1117 if (WPI_READ(sc, WPI_FH_RX_STATUS) &
1118 WPI_FH_RX_STATUS_IDLE)
1130 wpi_free_rx_ring(struct wpi_softc *sc)
1132 struct wpi_rx_ring *ring = &sc->rxq;
1135 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
1137 wpi_dma_contig_free(&ring->desc_dma);
1139 for (i = 0; i < WPI_RX_RING_COUNT; i++) {
1140 struct wpi_rx_data *data = &ring->data[i];
1142 if (data->m != NULL) {
1143 bus_dmamap_sync(ring->data_dmat, data->map,
1144 BUS_DMASYNC_POSTREAD);
1145 bus_dmamap_unload(ring->data_dmat, data->map);
1149 if (data->map != NULL)
1150 bus_dmamap_destroy(ring->data_dmat, data->map);
1152 if (ring->data_dmat != NULL) {
1153 bus_dma_tag_destroy(ring->data_dmat);
1154 ring->data_dmat = NULL;
1159 wpi_alloc_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring, uint8_t qid)
1171 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
1173 /* Allocate TX descriptors (16KB aligned.) */
1174 size = WPI_TX_RING_COUNT * sizeof (struct wpi_tx_desc);
1175 error = wpi_dma_contig_alloc(sc, &ring->desc_dma, (void **)&ring->desc,
1176 size, WPI_RING_DMA_ALIGN);
1178 device_printf(sc->sc_dev,
1179 "%s: could not allocate TX ring DMA memory, error %d\n",
1184 /* Update shared area with ring physical address. */
1185 sc->shared->txbase[qid] = htole32(ring->desc_dma.paddr);
1186 bus_dmamap_sync(sc->shared_dma.tag, sc->shared_dma.map,
1187 BUS_DMASYNC_PREWRITE);
1189 size = WPI_TX_RING_COUNT * sizeof (struct wpi_tx_cmd);
1190 error = wpi_dma_contig_alloc(sc, &ring->cmd_dma, (void **)&ring->cmd,
1193 device_printf(sc->sc_dev,
1194 "%s: could not allocate TX cmd DMA memory, error %d\n",
1199 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
1200 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES,
1201 WPI_MAX_SCATTER - 1, MCLBYTES, 0, NULL, NULL, &ring->data_dmat);
1203 device_printf(sc->sc_dev,
1204 "%s: could not create TX buf DMA tag, error %d\n",
1209 paddr = ring->cmd_dma.paddr;
1210 for (i = 0; i < WPI_TX_RING_COUNT; i++) {
1211 struct wpi_tx_data *data = &ring->data[i];
1213 data->cmd_paddr = paddr;
1214 paddr += sizeof (struct wpi_tx_cmd);
1216 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
1218 device_printf(sc->sc_dev,
1219 "%s: could not create TX buf DMA map, error %d\n",
1225 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
1229 fail: wpi_free_tx_ring(sc, ring);
1230 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
1235 wpi_update_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring)
1237 WPI_WRITE(sc, WPI_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur);
1241 wpi_update_tx_ring_ps(struct wpi_softc *sc, struct wpi_tx_ring *ring)
1244 if (ring->update != 0) {
1245 /* Wait for INT_WAKEUP event. */
1249 WPI_SETBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ);
1250 if (WPI_READ(sc, WPI_GP_CNTRL) & WPI_GP_CNTRL_SLEEP) {
1251 DPRINTF(sc, WPI_DEBUG_PWRSAVE, "%s (%d): requesting wakeup\n",
1252 __func__, ring->qid);
1255 wpi_update_tx_ring(sc, ring);
1256 WPI_CLRBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ);
1261 wpi_reset_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring)
1265 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
1267 for (i = 0; i < WPI_TX_RING_COUNT; i++) {
1268 struct wpi_tx_data *data = &ring->data[i];
1270 if (data->m != NULL) {
1271 bus_dmamap_sync(ring->data_dmat, data->map,
1272 BUS_DMASYNC_POSTWRITE);
1273 bus_dmamap_unload(ring->data_dmat, data->map);
1277 if (data->ni != NULL) {
1278 ieee80211_free_node(data->ni);
1282 /* Clear TX descriptors. */
1283 memset(ring->desc, 0, ring->desc_dma.size);
1284 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
1285 BUS_DMASYNC_PREWRITE);
1293 wpi_free_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring)
1297 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
1299 wpi_dma_contig_free(&ring->desc_dma);
1300 wpi_dma_contig_free(&ring->cmd_dma);
1302 for (i = 0; i < WPI_TX_RING_COUNT; i++) {
1303 struct wpi_tx_data *data = &ring->data[i];
1305 if (data->m != NULL) {
1306 bus_dmamap_sync(ring->data_dmat, data->map,
1307 BUS_DMASYNC_POSTWRITE);
1308 bus_dmamap_unload(ring->data_dmat, data->map);
1311 if (data->map != NULL)
1312 bus_dmamap_destroy(ring->data_dmat, data->map);
1314 if (ring->data_dmat != NULL) {
1315 bus_dma_tag_destroy(ring->data_dmat);
1316 ring->data_dmat = NULL;
1321 * Extract various information from EEPROM.
1324 wpi_read_eeprom(struct wpi_softc *sc, uint8_t macaddr[IEEE80211_ADDR_LEN])
1326 #define WPI_CHK(res) do { \
1327 if ((error = res) != 0) \
1333 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
1335 /* Adapter has to be powered on for EEPROM access to work. */
1336 if ((error = wpi_apm_init(sc)) != 0) {
1337 device_printf(sc->sc_dev,
1338 "%s: could not power ON adapter, error %d\n", __func__,
1343 if ((WPI_READ(sc, WPI_EEPROM_GP) & 0x6) == 0) {
1344 device_printf(sc->sc_dev, "bad EEPROM signature\n");
1348 /* Clear HW ownership of EEPROM. */
1349 WPI_CLRBITS(sc, WPI_EEPROM_GP, WPI_EEPROM_GP_IF_OWNER);
1351 /* Read the hardware capabilities, revision and SKU type. */
1352 WPI_CHK(wpi_read_prom_data(sc, WPI_EEPROM_SKU_CAP, &sc->cap,
1354 WPI_CHK(wpi_read_prom_data(sc, WPI_EEPROM_REVISION, &sc->rev,
1356 WPI_CHK(wpi_read_prom_data(sc, WPI_EEPROM_TYPE, &sc->type,
1359 sc->rev = le16toh(sc->rev);
1360 DPRINTF(sc, WPI_DEBUG_EEPROM, "cap=%x rev=%x type=%x\n", sc->cap,
1363 /* Read the regulatory domain (4 ASCII characters.) */
1364 WPI_CHK(wpi_read_prom_data(sc, WPI_EEPROM_DOMAIN, sc->domain,
1365 sizeof(sc->domain)));
1367 /* Read MAC address. */
1368 WPI_CHK(wpi_read_prom_data(sc, WPI_EEPROM_MAC, macaddr,
1369 IEEE80211_ADDR_LEN));
1371 /* Read the list of authorized channels. */
1372 for (i = 0; i < WPI_CHAN_BANDS_COUNT; i++)
1373 WPI_CHK(wpi_read_eeprom_channels(sc, i));
1375 /* Read the list of TX power groups. */
1376 for (i = 0; i < WPI_POWER_GROUPS_COUNT; i++)
1377 WPI_CHK(wpi_read_eeprom_group(sc, i));
1379 fail: wpi_apm_stop(sc); /* Power OFF adapter. */
1381 DPRINTF(sc, WPI_DEBUG_TRACE, error ? TRACE_STR_END_ERR : TRACE_STR_END,
1389 * Translate EEPROM flags to net80211.
1392 wpi_eeprom_channel_flags(struct wpi_eeprom_chan *channel)
1397 if ((channel->flags & WPI_EEPROM_CHAN_ACTIVE) == 0)
1398 nflags |= IEEE80211_CHAN_PASSIVE;
1399 if ((channel->flags & WPI_EEPROM_CHAN_IBSS) == 0)
1400 nflags |= IEEE80211_CHAN_NOADHOC;
1401 if (channel->flags & WPI_EEPROM_CHAN_RADAR) {
1402 nflags |= IEEE80211_CHAN_DFS;
1403 /* XXX apparently IBSS may still be marked */
1404 nflags |= IEEE80211_CHAN_NOADHOC;
1407 /* XXX HOSTAP uses WPI_MODE_IBSS */
1408 if (nflags & IEEE80211_CHAN_NOADHOC)
1409 nflags |= IEEE80211_CHAN_NOHOSTAP;
1415 wpi_read_eeprom_band(struct wpi_softc *sc, uint8_t n, int maxchans,
1416 int *nchans, struct ieee80211_channel chans[])
1418 struct wpi_eeprom_chan *channels = sc->eeprom_channels[n];
1419 const struct wpi_chan_band *band = &wpi_bands[n];
1421 uint8_t bands[IEEE80211_MODE_BYTES];
1425 memset(bands, 0, sizeof(bands));
1428 setbit(bands, IEEE80211_MODE_11B);
1429 setbit(bands, IEEE80211_MODE_11G);
1431 setbit(bands, IEEE80211_MODE_11A);
1433 for (i = 0; i < band->nchan; i++) {
1434 if (!(channels[i].flags & WPI_EEPROM_CHAN_VALID)) {
1435 DPRINTF(sc, WPI_DEBUG_EEPROM,
1436 "Channel Not Valid: %d, band %d\n",
1441 chan = band->chan[i];
1442 nflags = wpi_eeprom_channel_flags(&channels[i]);
1443 error = ieee80211_add_channel(chans, maxchans, nchans,
1444 chan, 0, channels[i].maxpwr, nflags, bands);
1448 /* Save maximum allowed TX power for this channel. */
1449 sc->maxpwr[chan] = channels[i].maxpwr;
1451 DPRINTF(sc, WPI_DEBUG_EEPROM,
1452 "adding chan %d flags=0x%x maxpwr=%d, offset %d\n",
1453 chan, channels[i].flags, sc->maxpwr[chan], *nchans);
1458 * Read the eeprom to find out what channels are valid for the given
1459 * band and update net80211 with what we find.
1462 wpi_read_eeprom_channels(struct wpi_softc *sc, uint8_t n)
1464 struct ieee80211com *ic = &sc->sc_ic;
1465 const struct wpi_chan_band *band = &wpi_bands[n];
1468 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
1470 error = wpi_read_prom_data(sc, band->addr, &sc->eeprom_channels[n],
1471 band->nchan * sizeof (struct wpi_eeprom_chan));
1473 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
1477 wpi_read_eeprom_band(sc, n, IEEE80211_CHAN_MAX, &ic->ic_nchans,
1480 ieee80211_sort_channels(ic->ic_channels, ic->ic_nchans);
1482 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
1487 static struct wpi_eeprom_chan *
1488 wpi_find_eeprom_channel(struct wpi_softc *sc, struct ieee80211_channel *c)
1492 for (j = 0; j < WPI_CHAN_BANDS_COUNT; j++)
1493 for (i = 0; i < wpi_bands[j].nchan; i++)
1494 if (wpi_bands[j].chan[i] == c->ic_ieee &&
1495 ((j == 0) ^ IEEE80211_IS_CHAN_A(c)) == 1)
1496 return &sc->eeprom_channels[j][i];
1502 wpi_getradiocaps(struct ieee80211com *ic,
1503 int maxchans, int *nchans, struct ieee80211_channel chans[])
1505 struct wpi_softc *sc = ic->ic_softc;
1508 /* Parse the list of authorized channels. */
1509 for (i = 0; i < WPI_CHAN_BANDS_COUNT && *nchans < maxchans; i++)
1510 wpi_read_eeprom_band(sc, i, maxchans, nchans, chans);
1514 * Enforce flags read from EEPROM.
1517 wpi_setregdomain(struct ieee80211com *ic, struct ieee80211_regdomain *rd,
1518 int nchan, struct ieee80211_channel chans[])
1520 struct wpi_softc *sc = ic->ic_softc;
1523 for (i = 0; i < nchan; i++) {
1524 struct ieee80211_channel *c = &chans[i];
1525 struct wpi_eeprom_chan *channel;
1527 channel = wpi_find_eeprom_channel(sc, c);
1528 if (channel == NULL) {
1529 ic_printf(ic, "%s: invalid channel %u freq %u/0x%x\n",
1530 __func__, c->ic_ieee, c->ic_freq, c->ic_flags);
1533 c->ic_flags |= wpi_eeprom_channel_flags(channel);
1540 wpi_read_eeprom_group(struct wpi_softc *sc, uint8_t n)
1542 struct wpi_power_group *group = &sc->groups[n];
1543 struct wpi_eeprom_group rgroup;
1546 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
1548 if ((error = wpi_read_prom_data(sc, WPI_EEPROM_POWER_GRP + n * 32,
1549 &rgroup, sizeof rgroup)) != 0) {
1550 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
1554 /* Save TX power group information. */
1555 group->chan = rgroup.chan;
1556 group->maxpwr = rgroup.maxpwr;
1557 /* Retrieve temperature at which the samples were taken. */
1558 group->temp = (int16_t)le16toh(rgroup.temp);
1560 DPRINTF(sc, WPI_DEBUG_EEPROM,
1561 "power group %d: chan=%d maxpwr=%d temp=%d\n", n, group->chan,
1562 group->maxpwr, group->temp);
1564 for (i = 0; i < WPI_SAMPLES_COUNT; i++) {
1565 group->samples[i].index = rgroup.samples[i].index;
1566 group->samples[i].power = rgroup.samples[i].power;
1568 DPRINTF(sc, WPI_DEBUG_EEPROM,
1569 "\tsample %d: index=%d power=%d\n", i,
1570 group->samples[i].index, group->samples[i].power);
1573 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
1578 static __inline uint8_t
1579 wpi_add_node_entry_adhoc(struct wpi_softc *sc)
1581 uint8_t newid = WPI_ID_IBSS_MIN;
1583 for (; newid <= WPI_ID_IBSS_MAX; newid++) {
1584 if ((sc->nodesmsk & (1 << newid)) == 0) {
1585 sc->nodesmsk |= 1 << newid;
1590 return WPI_ID_UNDEFINED;
1593 static __inline uint8_t
1594 wpi_add_node_entry_sta(struct wpi_softc *sc)
1596 sc->nodesmsk |= 1 << WPI_ID_BSS;
1602 wpi_check_node_entry(struct wpi_softc *sc, uint8_t id)
1604 if (id == WPI_ID_UNDEFINED)
1607 return (sc->nodesmsk >> id) & 1;
1610 static __inline void
1611 wpi_clear_node_table(struct wpi_softc *sc)
1616 static __inline void
1617 wpi_del_node_entry(struct wpi_softc *sc, uint8_t id)
1619 sc->nodesmsk &= ~(1 << id);
1622 static struct ieee80211_node *
1623 wpi_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN])
1625 struct wpi_node *wn;
1627 wn = malloc(sizeof (struct wpi_node), M_80211_NODE,
1633 wn->id = WPI_ID_UNDEFINED;
1639 wpi_node_free(struct ieee80211_node *ni)
1641 struct wpi_softc *sc = ni->ni_ic->ic_softc;
1642 struct wpi_node *wn = WPI_NODE(ni);
1644 if (wn->id != WPI_ID_UNDEFINED) {
1646 if (wpi_check_node_entry(sc, wn->id)) {
1647 wpi_del_node_entry(sc, wn->id);
1648 wpi_del_node(sc, ni);
1653 sc->sc_node_free(ni);
1657 wpi_check_bss_filter(struct wpi_softc *sc)
1659 return (sc->rxon.filter & htole32(WPI_FILTER_BSS)) != 0;
1663 wpi_ibss_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, int subtype,
1664 const struct ieee80211_rx_stats *rxs,
1667 struct ieee80211vap *vap = ni->ni_vap;
1668 struct wpi_softc *sc = vap->iv_ic->ic_softc;
1669 struct wpi_vap *wvp = WPI_VAP(vap);
1670 uint64_t ni_tstamp, rx_tstamp;
1672 wvp->wv_recv_mgmt(ni, m, subtype, rxs, rssi, nf);
1674 if (vap->iv_state == IEEE80211_S_RUN &&
1675 (subtype == IEEE80211_FC0_SUBTYPE_BEACON ||
1676 subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP)) {
1677 ni_tstamp = le64toh(ni->ni_tstamp.tsf);
1678 rx_tstamp = le64toh(sc->rx_tstamp);
1680 if (ni_tstamp >= rx_tstamp) {
1681 DPRINTF(sc, WPI_DEBUG_STATE,
1682 "ibss merge, tsf %ju tstamp %ju\n",
1683 (uintmax_t)rx_tstamp, (uintmax_t)ni_tstamp);
1684 (void) ieee80211_ibss_merge(ni);
1690 wpi_restore_node(void *arg, struct ieee80211_node *ni)
1692 struct wpi_softc *sc = arg;
1693 struct wpi_node *wn = WPI_NODE(ni);
1697 if (wn->id != WPI_ID_UNDEFINED) {
1698 wn->id = WPI_ID_UNDEFINED;
1699 if ((error = wpi_add_ibss_node(sc, ni)) != 0) {
1700 device_printf(sc->sc_dev,
1701 "%s: could not add IBSS node, error %d\n",
1709 wpi_restore_node_table(struct wpi_softc *sc, struct wpi_vap *wvp)
1711 struct ieee80211com *ic = &sc->sc_ic;
1713 /* Set group keys once. */
1718 ieee80211_iterate_nodes(&ic->ic_sta, wpi_restore_node, sc);
1719 ieee80211_crypto_reload_keys(ic);
1723 * Called by net80211 when ever there is a change to 80211 state machine
1726 wpi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
1728 struct wpi_vap *wvp = WPI_VAP(vap);
1729 struct ieee80211com *ic = vap->iv_ic;
1730 struct wpi_softc *sc = ic->ic_softc;
1733 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
1736 if (nstate > IEEE80211_S_INIT && sc->sc_running == 0) {
1737 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
1744 DPRINTF(sc, WPI_DEBUG_STATE, "%s: %s -> %s\n", __func__,
1745 ieee80211_state_name[vap->iv_state],
1746 ieee80211_state_name[nstate]);
1748 if (vap->iv_state == IEEE80211_S_RUN && nstate < IEEE80211_S_RUN) {
1749 if ((error = wpi_set_pslevel(sc, 0, 0, 1)) != 0) {
1750 device_printf(sc->sc_dev,
1751 "%s: could not set power saving level\n",
1756 wpi_set_led(sc, WPI_LED_LINK, 1, 0);
1760 case IEEE80211_S_SCAN:
1762 if (wpi_check_bss_filter(sc) != 0) {
1763 sc->rxon.filter &= ~htole32(WPI_FILTER_BSS);
1764 if ((error = wpi_send_rxon(sc, 0, 1)) != 0) {
1765 device_printf(sc->sc_dev,
1766 "%s: could not send RXON\n", __func__);
1769 WPI_RXON_UNLOCK(sc);
1772 case IEEE80211_S_ASSOC:
1773 if (vap->iv_state != IEEE80211_S_RUN)
1776 case IEEE80211_S_AUTH:
1778 * NB: do not optimize AUTH -> AUTH state transmission -
1779 * this will break powersave with non-QoS AP!
1783 * The node must be registered in the firmware before auth.
1784 * Also the associd must be cleared on RUN -> ASSOC
1787 if ((error = wpi_auth(sc, vap)) != 0) {
1788 device_printf(sc->sc_dev,
1789 "%s: could not move to AUTH state, error %d\n",
1794 case IEEE80211_S_RUN:
1796 * RUN -> RUN transition:
1797 * STA mode: Just restart the timers.
1798 * IBSS mode: Process IBSS merge.
1800 if (vap->iv_state == IEEE80211_S_RUN) {
1801 if (vap->iv_opmode != IEEE80211_M_IBSS) {
1803 wpi_calib_timeout(sc);
1804 WPI_RXON_UNLOCK(sc);
1808 * Drop the BSS_FILTER bit
1809 * (there is no another way to change bssid).
1812 sc->rxon.filter &= ~htole32(WPI_FILTER_BSS);
1813 if ((error = wpi_send_rxon(sc, 0, 1)) != 0) {
1814 device_printf(sc->sc_dev,
1815 "%s: could not send RXON\n",
1818 WPI_RXON_UNLOCK(sc);
1820 /* Restore all what was lost. */
1821 wpi_restore_node_table(sc, wvp);
1823 /* XXX set conditionally? */
1829 * !RUN -> RUN requires setting the association id
1830 * which is done with a firmware cmd. We also defer
1831 * starting the timers until that work is done.
1833 if ((error = wpi_run(sc, vap)) != 0) {
1834 device_printf(sc->sc_dev,
1835 "%s: could not move to RUN state\n", __func__);
1843 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
1847 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
1849 return wvp->wv_newstate(vap, nstate, arg);
1853 wpi_calib_timeout(void *arg)
1855 struct wpi_softc *sc = arg;
1857 if (wpi_check_bss_filter(sc) == 0)
1860 wpi_power_calibration(sc);
1862 callout_reset(&sc->calib_to, 60*hz, wpi_calib_timeout, sc);
1865 static __inline uint8_t
1866 rate2plcp(const uint8_t rate)
1869 case 12: return 0xd;
1870 case 18: return 0xf;
1871 case 24: return 0x5;
1872 case 36: return 0x7;
1873 case 48: return 0x9;
1874 case 72: return 0xb;
1875 case 96: return 0x1;
1876 case 108: return 0x3;
1880 case 22: return 110;
1885 static __inline uint8_t
1886 plcp2rate(const uint8_t plcp)
1889 case 0xd: return 12;
1890 case 0xf: return 18;
1891 case 0x5: return 24;
1892 case 0x7: return 36;
1893 case 0x9: return 48;
1894 case 0xb: return 72;
1895 case 0x1: return 96;
1896 case 0x3: return 108;
1900 case 110: return 22;
1905 /* Quickly determine if a given rate is CCK or OFDM. */
1906 #define WPI_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22)
1909 wpi_rx_done(struct wpi_softc *sc, struct wpi_rx_desc *desc,
1910 struct wpi_rx_data *data)
1912 struct ieee80211com *ic = &sc->sc_ic;
1913 struct wpi_rx_ring *ring = &sc->rxq;
1914 struct wpi_rx_stat *stat;
1915 struct wpi_rx_head *head;
1916 struct wpi_rx_tail *tail;
1917 struct ieee80211_frame *wh;
1918 struct ieee80211_node *ni;
1919 struct mbuf *m, *m1;
1925 stat = (struct wpi_rx_stat *)(desc + 1);
1927 if (__predict_false(stat->len > WPI_STAT_MAXLEN)) {
1928 device_printf(sc->sc_dev, "invalid RX statistic header\n");
1932 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTREAD);
1933 head = (struct wpi_rx_head *)((caddr_t)(stat + 1) + stat->len);
1934 len = le16toh(head->len);
1935 tail = (struct wpi_rx_tail *)((caddr_t)(head + 1) + len);
1936 flags = le32toh(tail->flags);
1938 DPRINTF(sc, WPI_DEBUG_RECV, "%s: idx %d len %d stat len %u rssi %d"
1939 " rate %x chan %d tstamp %ju\n", __func__, ring->cur,
1940 le32toh(desc->len), len, (int8_t)stat->rssi,
1941 head->plcp, head->chan, (uintmax_t)le64toh(tail->tstamp));
1943 /* Discard frames with a bad FCS early. */
1944 if ((flags & WPI_RX_NOERROR) != WPI_RX_NOERROR) {
1945 DPRINTF(sc, WPI_DEBUG_RECV, "%s: RX flags error %x\n",
1949 /* Discard frames that are too short. */
1950 if (len < sizeof (struct ieee80211_frame_ack)) {
1951 DPRINTF(sc, WPI_DEBUG_RECV, "%s: frame too short: %d\n",
1956 m1 = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE);
1957 if (__predict_false(m1 == NULL)) {
1958 DPRINTF(sc, WPI_DEBUG_ANY, "%s: no mbuf to restock ring\n",
1962 bus_dmamap_unload(ring->data_dmat, data->map);
1964 error = bus_dmamap_load(ring->data_dmat, data->map, mtod(m1, void *),
1965 MJUMPAGESIZE, wpi_dma_map_addr, &paddr, BUS_DMA_NOWAIT);
1966 if (__predict_false(error != 0 && error != EFBIG)) {
1967 device_printf(sc->sc_dev,
1968 "%s: bus_dmamap_load failed, error %d\n", __func__, error);
1971 /* Try to reload the old mbuf. */
1972 error = bus_dmamap_load(ring->data_dmat, data->map,
1973 mtod(data->m, void *), MJUMPAGESIZE, wpi_dma_map_addr,
1974 &paddr, BUS_DMA_NOWAIT);
1975 if (error != 0 && error != EFBIG) {
1976 panic("%s: could not load old RX mbuf", __func__);
1978 /* Physical address may have changed. */
1979 ring->desc[ring->cur] = htole32(paddr);
1980 bus_dmamap_sync(ring->data_dmat, ring->desc_dma.map,
1981 BUS_DMASYNC_PREWRITE);
1987 /* Update RX descriptor. */
1988 ring->desc[ring->cur] = htole32(paddr);
1989 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
1990 BUS_DMASYNC_PREWRITE);
1992 /* Finalize mbuf. */
1993 m->m_data = (caddr_t)(head + 1);
1994 m->m_pkthdr.len = m->m_len = len;
1996 /* Grab a reference to the source node. */
1997 wh = mtod(m, struct ieee80211_frame *);
1999 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) &&
2000 (flags & WPI_RX_CIPHER_MASK) == WPI_RX_CIPHER_CCMP) {
2001 /* Check whether decryption was successful or not. */
2002 if ((flags & WPI_RX_DECRYPT_MASK) != WPI_RX_DECRYPT_OK) {
2003 DPRINTF(sc, WPI_DEBUG_RECV,
2004 "CCMP decryption failed 0x%x\n", flags);
2007 m->m_flags |= M_WEP;
2010 if (len >= sizeof(struct ieee80211_frame_min))
2011 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh);
2015 sc->rx_tstamp = tail->tstamp;
2017 if (ieee80211_radiotap_active(ic)) {
2018 struct wpi_rx_radiotap_header *tap = &sc->sc_rxtap;
2021 if (head->flags & htole16(WPI_STAT_FLAG_SHPREAMBLE))
2022 tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
2023 tap->wr_dbm_antsignal = (int8_t)(stat->rssi + WPI_RSSI_OFFSET);
2024 tap->wr_dbm_antnoise = WPI_RSSI_OFFSET;
2025 tap->wr_tsft = tail->tstamp;
2026 tap->wr_antenna = (le16toh(head->flags) >> 4) & 0xf;
2027 tap->wr_rate = plcp2rate(head->plcp);
2032 /* Send the frame to the 802.11 layer. */
2034 (void)ieee80211_input(ni, m, stat->rssi, WPI_RSSI_OFFSET);
2035 /* Node is no longer needed. */
2036 ieee80211_free_node(ni);
2038 (void)ieee80211_input_all(ic, m, stat->rssi, WPI_RSSI_OFFSET);
2046 fail1: counter_u64_add(ic->ic_ierrors, 1);
2050 wpi_rx_statistics(struct wpi_softc *sc, struct wpi_rx_desc *desc,
2051 struct wpi_rx_data *data)
2057 wpi_tx_done(struct wpi_softc *sc, struct wpi_rx_desc *desc)
2059 struct ieee80211_ratectl_tx_status *txs = &sc->sc_txs;
2060 struct wpi_tx_ring *ring = &sc->txq[desc->qid & 0x3];
2061 struct wpi_tx_data *data = &ring->data[desc->idx];
2062 struct wpi_tx_stat *stat = (struct wpi_tx_stat *)(desc + 1);
2064 struct ieee80211_node *ni;
2065 uint32_t status = le32toh(stat->status);
2067 KASSERT(data->ni != NULL, ("no node"));
2068 KASSERT(data->m != NULL, ("no mbuf"));
2070 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
2072 DPRINTF(sc, WPI_DEBUG_XMIT, "%s: "
2073 "qid %d idx %d retries %d btkillcnt %d rate %x duration %d "
2074 "status %x\n", __func__, desc->qid, desc->idx, stat->ackfailcnt,
2075 stat->btkillcnt, stat->rate, le32toh(stat->duration), status);
2077 /* Unmap and free mbuf. */
2078 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTWRITE);
2079 bus_dmamap_unload(ring->data_dmat, data->map);
2080 m = data->m, data->m = NULL;
2081 ni = data->ni, data->ni = NULL;
2083 /* Restore frame header. */
2084 KASSERT(M_LEADINGSPACE(m) >= data->hdrlen, ("no frame header!"));
2085 M_PREPEND(m, data->hdrlen, M_NOWAIT);
2086 KASSERT(m != NULL, ("%s: m is NULL\n", __func__));
2089 * Update rate control statistics for the node.
2091 txs->pktlen = m->m_pkthdr.len;
2092 txs->short_retries = stat->rtsfailcnt;
2093 txs->long_retries = stat->ackfailcnt / WPI_NTRIES_DEFAULT;
2094 if (!(status & WPI_TX_STATUS_FAIL))
2095 txs->status = IEEE80211_RATECTL_TX_SUCCESS;
2097 switch (status & 0xff) {
2098 case WPI_TX_STATUS_FAIL_SHORT_LIMIT:
2099 txs->status = IEEE80211_RATECTL_TX_FAIL_SHORT;
2101 case WPI_TX_STATUS_FAIL_LONG_LIMIT:
2102 txs->status = IEEE80211_RATECTL_TX_FAIL_LONG;
2104 case WPI_TX_STATUS_FAIL_LIFE_EXPIRE:
2105 txs->status = IEEE80211_RATECTL_TX_FAIL_EXPIRED;
2108 txs->status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED;
2113 ieee80211_ratectl_tx_complete(ni, txs);
2114 ieee80211_tx_complete(ni, m, (status & WPI_TX_STATUS_FAIL) != 0);
2116 WPI_TXQ_STATE_LOCK(sc);
2117 if (--ring->queued > 0)
2118 callout_reset(&sc->tx_timeout, 5*hz, wpi_tx_timeout, sc);
2120 callout_stop(&sc->tx_timeout);
2121 WPI_TXQ_STATE_UNLOCK(sc);
2123 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
2127 * Process a "command done" firmware notification. This is where we wakeup
2128 * processes waiting for a synchronous command completion.
2131 wpi_cmd_done(struct wpi_softc *sc, struct wpi_rx_desc *desc)
2133 struct wpi_tx_ring *ring = &sc->txq[WPI_CMD_QUEUE_NUM];
2134 struct wpi_tx_data *data;
2135 struct wpi_tx_cmd *cmd;
2137 DPRINTF(sc, WPI_DEBUG_CMD, "cmd notification qid %x idx %d flags %x "
2138 "type %s len %d\n", desc->qid, desc->idx,
2139 desc->flags, wpi_cmd_str(desc->type),
2140 le32toh(desc->len));
2142 if ((desc->qid & WPI_RX_DESC_QID_MSK) != WPI_CMD_QUEUE_NUM)
2143 return; /* Not a command ack. */
2145 KASSERT(ring->queued == 0, ("ring->queued must be 0"));
2147 data = &ring->data[desc->idx];
2148 cmd = &ring->cmd[desc->idx];
2150 /* If the command was mapped in an mbuf, free it. */
2151 if (data->m != NULL) {
2152 bus_dmamap_sync(ring->data_dmat, data->map,
2153 BUS_DMASYNC_POSTWRITE);
2154 bus_dmamap_unload(ring->data_dmat, data->map);
2161 if (desc->type == WPI_CMD_SET_POWER_MODE) {
2162 struct wpi_pmgt_cmd *pcmd = (struct wpi_pmgt_cmd *)cmd->data;
2164 bus_dmamap_sync(ring->data_dmat, ring->cmd_dma.map,
2165 BUS_DMASYNC_POSTREAD);
2168 if (le16toh(pcmd->flags) & WPI_PS_ALLOW_SLEEP) {
2169 sc->sc_update_rx_ring = wpi_update_rx_ring_ps;
2170 sc->sc_update_tx_ring = wpi_update_tx_ring_ps;
2172 sc->sc_update_rx_ring = wpi_update_rx_ring;
2173 sc->sc_update_tx_ring = wpi_update_tx_ring;
2180 wpi_notif_intr(struct wpi_softc *sc)
2182 struct ieee80211com *ic = &sc->sc_ic;
2183 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2186 bus_dmamap_sync(sc->shared_dma.tag, sc->shared_dma.map,
2187 BUS_DMASYNC_POSTREAD);
2189 hw = le32toh(sc->shared->next) & 0xfff;
2190 hw = (hw == 0) ? WPI_RX_RING_COUNT - 1 : hw - 1;
2192 while (sc->rxq.cur != hw) {
2193 sc->rxq.cur = (sc->rxq.cur + 1) % WPI_RX_RING_COUNT;
2195 struct wpi_rx_data *data = &sc->rxq.data[sc->rxq.cur];
2196 struct wpi_rx_desc *desc;
2198 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2199 BUS_DMASYNC_POSTREAD);
2200 desc = mtod(data->m, struct wpi_rx_desc *);
2202 DPRINTF(sc, WPI_DEBUG_NOTIFY,
2203 "%s: cur=%d; qid %x idx %d flags %x type %d(%s) len %d\n",
2204 __func__, sc->rxq.cur, desc->qid, desc->idx, desc->flags,
2205 desc->type, wpi_cmd_str(desc->type), le32toh(desc->len));
2207 if (!(desc->qid & WPI_UNSOLICITED_RX_NOTIF)) {
2208 /* Reply to a command. */
2209 wpi_cmd_done(sc, desc);
2212 switch (desc->type) {
2214 /* An 802.11 frame has been received. */
2215 wpi_rx_done(sc, desc, data);
2217 if (__predict_false(sc->sc_running == 0)) {
2218 /* wpi_stop() was called. */
2225 /* An 802.11 frame has been transmitted. */
2226 wpi_tx_done(sc, desc);
2229 case WPI_RX_STATISTICS:
2230 case WPI_BEACON_STATISTICS:
2231 wpi_rx_statistics(sc, desc, data);
2234 case WPI_BEACON_MISSED:
2236 struct wpi_beacon_missed *miss =
2237 (struct wpi_beacon_missed *)(desc + 1);
2238 uint32_t expected, misses, received, threshold;
2240 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2241 BUS_DMASYNC_POSTREAD);
2243 misses = le32toh(miss->consecutive);
2244 expected = le32toh(miss->expected);
2245 received = le32toh(miss->received);
2246 threshold = MAX(2, vap->iv_bmissthreshold);
2248 DPRINTF(sc, WPI_DEBUG_BMISS,
2249 "%s: beacons missed %u(%u) (received %u/%u)\n",
2250 __func__, misses, le32toh(miss->total), received,
2253 if (misses >= threshold ||
2254 (received == 0 && expected >= threshold)) {
2256 if (callout_pending(&sc->scan_timeout)) {
2257 wpi_cmd(sc, WPI_CMD_SCAN_ABORT, NULL,
2260 WPI_RXON_UNLOCK(sc);
2261 if (vap->iv_state == IEEE80211_S_RUN &&
2262 (ic->ic_flags & IEEE80211_F_SCAN) == 0)
2263 ieee80211_beacon_miss(ic);
2269 case WPI_BEACON_SENT:
2271 struct wpi_tx_stat *stat =
2272 (struct wpi_tx_stat *)(desc + 1);
2273 uint64_t *tsf = (uint64_t *)(stat + 1);
2274 uint32_t *mode = (uint32_t *)(tsf + 1);
2276 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2277 BUS_DMASYNC_POSTREAD);
2279 DPRINTF(sc, WPI_DEBUG_BEACON,
2280 "beacon sent: rts %u, ack %u, btkill %u, rate %u, "
2281 "duration %u, status %x, tsf %ju, mode %x\n",
2282 stat->rtsfailcnt, stat->ackfailcnt,
2283 stat->btkillcnt, stat->rate, le32toh(stat->duration),
2284 le32toh(stat->status), le64toh(*tsf),
2292 struct wpi_ucode_info *uc =
2293 (struct wpi_ucode_info *)(desc + 1);
2295 /* The microcontroller is ready. */
2296 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2297 BUS_DMASYNC_POSTREAD);
2298 DPRINTF(sc, WPI_DEBUG_RESET,
2299 "microcode alive notification version=%d.%d "
2300 "subtype=%x alive=%x\n", uc->major, uc->minor,
2301 uc->subtype, le32toh(uc->valid));
2303 if (le32toh(uc->valid) != 1) {
2304 device_printf(sc->sc_dev,
2305 "microcontroller initialization failed\n");
2306 wpi_stop_locked(sc);
2309 /* Save the address of the error log in SRAM. */
2310 sc->errptr = le32toh(uc->errptr);
2313 case WPI_STATE_CHANGED:
2315 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2316 BUS_DMASYNC_POSTREAD);
2318 uint32_t *status = (uint32_t *)(desc + 1);
2320 DPRINTF(sc, WPI_DEBUG_STATE, "state changed to %x\n",
2323 if (le32toh(*status) & 1) {
2325 wpi_clear_node_table(sc);
2327 ieee80211_runtask(ic,
2328 &sc->sc_radiooff_task);
2334 case WPI_START_SCAN:
2336 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2337 BUS_DMASYNC_POSTREAD);
2339 struct wpi_start_scan *scan =
2340 (struct wpi_start_scan *)(desc + 1);
2341 DPRINTF(sc, WPI_DEBUG_SCAN,
2342 "%s: scanning channel %d status %x\n",
2343 __func__, scan->chan, le32toh(scan->status));
2350 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2351 BUS_DMASYNC_POSTREAD);
2353 struct wpi_stop_scan *scan =
2354 (struct wpi_stop_scan *)(desc + 1);
2356 DPRINTF(sc, WPI_DEBUG_SCAN,
2357 "scan finished nchan=%d status=%d chan=%d\n",
2358 scan->nchan, scan->status, scan->chan);
2361 callout_stop(&sc->scan_timeout);
2362 WPI_RXON_UNLOCK(sc);
2363 if (scan->status == WPI_SCAN_ABORTED)
2364 ieee80211_cancel_scan(vap);
2366 ieee80211_scan_next(vap);
2371 if (sc->rxq.cur % 8 == 0) {
2372 /* Tell the firmware what we have processed. */
2373 sc->sc_update_rx_ring(sc);
2379 * Process an INT_WAKEUP interrupt raised when the microcontroller wakes up
2380 * from power-down sleep mode.
2383 wpi_wakeup_intr(struct wpi_softc *sc)
2387 DPRINTF(sc, WPI_DEBUG_PWRSAVE,
2388 "%s: ucode wakeup from power-down sleep\n", __func__);
2390 /* Wakeup RX and TX rings. */
2391 if (sc->rxq.update) {
2393 wpi_update_rx_ring(sc);
2396 for (qid = 0; qid < WPI_DRV_NTXQUEUES; qid++) {
2397 struct wpi_tx_ring *ring = &sc->txq[qid];
2401 wpi_update_tx_ring(sc, ring);
2404 WPI_CLRBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ);
2409 * This function prints firmware registers
2413 wpi_debug_registers(struct wpi_softc *sc)
2416 static const uint32_t csr_tbl[] = {
2433 static const uint32_t prph_tbl[] = {
2440 DPRINTF(sc, WPI_DEBUG_REGISTER,"%s","\n");
2442 for (i = 0; i < nitems(csr_tbl); i++) {
2443 DPRINTF(sc, WPI_DEBUG_REGISTER, " %-18s: 0x%08x ",
2444 wpi_get_csr_string(csr_tbl[i]), WPI_READ(sc, csr_tbl[i]));
2446 if ((i + 1) % 2 == 0)
2447 DPRINTF(sc, WPI_DEBUG_REGISTER, "\n");
2449 DPRINTF(sc, WPI_DEBUG_REGISTER, "\n\n");
2451 if (wpi_nic_lock(sc) == 0) {
2452 for (i = 0; i < nitems(prph_tbl); i++) {
2453 DPRINTF(sc, WPI_DEBUG_REGISTER, " %-18s: 0x%08x ",
2454 wpi_get_prph_string(prph_tbl[i]),
2455 wpi_prph_read(sc, prph_tbl[i]));
2457 if ((i + 1) % 2 == 0)
2458 DPRINTF(sc, WPI_DEBUG_REGISTER, "\n");
2460 DPRINTF(sc, WPI_DEBUG_REGISTER, "\n");
2463 DPRINTF(sc, WPI_DEBUG_REGISTER,
2464 "Cannot access internal registers.\n");
2470 * Dump the error log of the firmware when a firmware panic occurs. Although
2471 * we can't debug the firmware because it is neither open source nor free, it
2472 * can help us to identify certain classes of problems.
2475 wpi_fatal_intr(struct wpi_softc *sc)
2477 struct wpi_fw_dump dump;
2478 uint32_t i, offset, count;
2480 /* Check that the error log address is valid. */
2481 if (sc->errptr < WPI_FW_DATA_BASE ||
2482 sc->errptr + sizeof (dump) >
2483 WPI_FW_DATA_BASE + WPI_FW_DATA_MAXSZ) {
2484 printf("%s: bad firmware error log address 0x%08x\n", __func__,
2488 if (wpi_nic_lock(sc) != 0) {
2489 printf("%s: could not read firmware error log\n", __func__);
2492 /* Read number of entries in the log. */
2493 count = wpi_mem_read(sc, sc->errptr);
2494 if (count == 0 || count * sizeof (dump) > WPI_FW_DATA_MAXSZ) {
2495 printf("%s: invalid count field (count = %u)\n", __func__,
2500 /* Skip "count" field. */
2501 offset = sc->errptr + sizeof (uint32_t);
2502 printf("firmware error log (count = %u):\n", count);
2503 for (i = 0; i < count; i++) {
2504 wpi_mem_read_region_4(sc, offset, (uint32_t *)&dump,
2505 sizeof (dump) / sizeof (uint32_t));
2507 printf(" error type = \"%s\" (0x%08X)\n",
2508 (dump.desc < nitems(wpi_fw_errmsg)) ?
2509 wpi_fw_errmsg[dump.desc] : "UNKNOWN",
2511 printf(" error data = 0x%08X\n",
2513 printf(" branch link = 0x%08X%08X\n",
2514 dump.blink[0], dump.blink[1]);
2515 printf(" interrupt link = 0x%08X%08X\n",
2516 dump.ilink[0], dump.ilink[1]);
2517 printf(" time = %u\n", dump.time);
2519 offset += sizeof (dump);
2522 /* Dump driver status (TX and RX rings) while we're here. */
2523 printf("driver status:\n");
2525 for (i = 0; i < WPI_DRV_NTXQUEUES; i++) {
2526 struct wpi_tx_ring *ring = &sc->txq[i];
2527 printf(" tx ring %2d: qid=%-2d cur=%-3d queued=%-3d\n",
2528 i, ring->qid, ring->cur, ring->queued);
2531 printf(" rx ring: cur=%d\n", sc->rxq.cur);
2537 struct wpi_softc *sc = arg;
2542 /* Disable interrupts. */
2543 WPI_WRITE(sc, WPI_INT_MASK, 0);
2545 r1 = WPI_READ(sc, WPI_INT);
2547 if (__predict_false(r1 == 0xffffffff ||
2548 (r1 & 0xfffffff0) == 0xa5a5a5a0))
2549 goto end; /* Hardware gone! */
2551 r2 = WPI_READ(sc, WPI_FH_INT);
2553 DPRINTF(sc, WPI_DEBUG_INTR, "%s: reg1=0x%08x reg2=0x%08x\n", __func__,
2556 if (r1 == 0 && r2 == 0)
2557 goto done; /* Interrupt not for us. */
2559 /* Acknowledge interrupts. */
2560 WPI_WRITE(sc, WPI_INT, r1);
2561 WPI_WRITE(sc, WPI_FH_INT, r2);
2563 if (__predict_false(r1 & (WPI_INT_SW_ERR | WPI_INT_HW_ERR))) {
2564 struct ieee80211com *ic = &sc->sc_ic;
2566 device_printf(sc->sc_dev, "fatal firmware error\n");
2568 wpi_debug_registers(sc);
2571 DPRINTF(sc, WPI_DEBUG_HW,
2572 "(%s)\n", (r1 & WPI_INT_SW_ERR) ? "(Software Error)" :
2573 "(Hardware Error)");
2574 ieee80211_restart_all(ic);
2578 if ((r1 & (WPI_INT_FH_RX | WPI_INT_SW_RX)) ||
2579 (r2 & WPI_FH_INT_RX))
2582 if (r1 & WPI_INT_ALIVE)
2583 wakeup(sc); /* Firmware is alive. */
2585 if (r1 & WPI_INT_WAKEUP)
2586 wpi_wakeup_intr(sc);
2589 /* Re-enable interrupts. */
2590 if (__predict_true(sc->sc_running))
2591 WPI_WRITE(sc, WPI_INT_MASK, WPI_INT_MASK_DEF);
2593 end: WPI_UNLOCK(sc);
2597 wpi_free_txfrags(struct wpi_softc *sc, uint16_t ac)
2599 struct wpi_tx_ring *ring;
2600 struct wpi_tx_data *data;
2604 ring = &sc->txq[ac];
2606 while (ring->pending != 0) {
2608 cur = (ring->cur + ring->pending) % WPI_TX_RING_COUNT;
2609 data = &ring->data[cur];
2611 bus_dmamap_sync(ring->data_dmat, data->map,
2612 BUS_DMASYNC_POSTWRITE);
2613 bus_dmamap_unload(ring->data_dmat, data->map);
2617 ieee80211_node_decref(data->ni);
2625 wpi_cmd2(struct wpi_softc *sc, struct wpi_buf *buf)
2627 struct ieee80211_frame *wh;
2628 struct wpi_tx_cmd *cmd;
2629 struct wpi_tx_data *data;
2630 struct wpi_tx_desc *desc;
2631 struct wpi_tx_ring *ring;
2633 bus_dma_segment_t *seg, segs[WPI_MAX_SCATTER];
2636 int error, i, nsegs, totlen, frag;
2640 KASSERT(buf->size <= sizeof(buf->data), ("buffer overflow"));
2642 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
2644 if (__predict_false(sc->sc_running == 0)) {
2645 /* wpi_stop() was called */
2650 wh = mtod(buf->m, struct ieee80211_frame *);
2651 hdrlen = ieee80211_anyhdrsize(wh);
2652 totlen = buf->m->m_pkthdr.len;
2653 frag = ((buf->m->m_flags & (M_FRAG | M_LASTFRAG)) == M_FRAG);
2655 if (__predict_false(totlen < sizeof(struct ieee80211_frame_min))) {
2661 /* First segment length must be a multiple of 4. */
2662 pad = 4 - (hdrlen & 3);
2666 ring = &sc->txq[buf->ac];
2667 cur = (ring->cur + ring->pending) % WPI_TX_RING_COUNT;
2668 desc = &ring->desc[cur];
2669 data = &ring->data[cur];
2671 /* Prepare TX firmware command. */
2672 cmd = &ring->cmd[cur];
2673 cmd->code = buf->code;
2675 cmd->qid = ring->qid;
2678 memcpy(cmd->data, buf->data, buf->size);
2680 /* Save and trim IEEE802.11 header. */
2681 memcpy((uint8_t *)(cmd->data + buf->size), wh, hdrlen);
2682 m_adj(buf->m, hdrlen);
2684 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, buf->m,
2685 segs, &nsegs, BUS_DMA_NOWAIT);
2686 if (error != 0 && error != EFBIG) {
2687 device_printf(sc->sc_dev,
2688 "%s: can't map mbuf (error %d)\n", __func__, error);
2692 /* Too many DMA segments, linearize mbuf. */
2693 m1 = m_collapse(buf->m, M_NOWAIT, WPI_MAX_SCATTER - 1);
2695 device_printf(sc->sc_dev,
2696 "%s: could not defrag mbuf\n", __func__);
2702 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map,
2703 buf->m, segs, &nsegs, BUS_DMA_NOWAIT);
2704 if (__predict_false(error != 0)) {
2705 /* XXX fix this (applicable to the iwn(4) too) */
2707 * NB: Do not return error;
2708 * original mbuf does not exist anymore.
2710 device_printf(sc->sc_dev,
2711 "%s: can't map mbuf (error %d)\n", __func__,
2713 if (ring->qid < WPI_CMD_QUEUE_NUM) {
2714 if_inc_counter(buf->ni->ni_vap->iv_ifp,
2715 IFCOUNTER_OERRORS, 1);
2717 ieee80211_free_node(buf->ni);
2725 KASSERT(nsegs < WPI_MAX_SCATTER,
2726 ("too many DMA segments, nsegs (%d) should be less than %d",
2727 nsegs, WPI_MAX_SCATTER));
2731 data->hdrlen = hdrlen;
2733 DPRINTF(sc, WPI_DEBUG_XMIT, "%s: qid %d idx %d len %d nsegs %d\n",
2734 __func__, ring->qid, cur, totlen, nsegs);
2736 /* Fill TX descriptor. */
2737 desc->nsegs = WPI_PAD32(totlen + pad) << 4 | (1 + nsegs);
2738 /* First DMA segment is used by the TX command. */
2739 desc->segs[0].addr = htole32(data->cmd_paddr);
2740 desc->segs[0].len = htole32(4 + buf->size + hdrlen + pad);
2741 /* Other DMA segments are for data payload. */
2743 for (i = 1; i <= nsegs; i++) {
2744 desc->segs[i].addr = htole32(seg->ds_addr);
2745 desc->segs[i].len = htole32(seg->ds_len);
2749 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
2750 bus_dmamap_sync(ring->data_dmat, ring->cmd_dma.map,
2751 BUS_DMASYNC_PREWRITE);
2752 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
2753 BUS_DMASYNC_PREWRITE);
2758 if (ring->qid < WPI_CMD_QUEUE_NUM) {
2759 WPI_TXQ_STATE_LOCK(sc);
2760 ring->queued += ring->pending;
2761 callout_reset(&sc->tx_timeout, 5*hz, wpi_tx_timeout,
2763 WPI_TXQ_STATE_UNLOCK(sc);
2767 ring->cur = (ring->cur + ring->pending) % WPI_TX_RING_COUNT;
2769 sc->sc_update_tx_ring(sc, ring);
2771 ieee80211_node_incref(data->ni);
2773 end: DPRINTF(sc, WPI_DEBUG_TRACE, error ? TRACE_STR_END_ERR : TRACE_STR_END,
2782 * Construct the data packet for a transmit buffer.
2785 wpi_tx_data(struct wpi_softc *sc, struct mbuf *m, struct ieee80211_node *ni)
2787 const struct ieee80211_txparam *tp = ni->ni_txparms;
2788 struct ieee80211vap *vap = ni->ni_vap;
2789 struct ieee80211com *ic = ni->ni_ic;
2790 struct wpi_node *wn = WPI_NODE(ni);
2791 struct ieee80211_frame *wh;
2792 struct ieee80211_key *k = NULL;
2793 struct wpi_buf tx_data;
2794 struct wpi_cmd_data *tx = (struct wpi_cmd_data *)&tx_data.data;
2797 uint8_t tid, type, rate;
2798 int swcrypt, ismcast, totlen;
2800 wh = mtod(m, struct ieee80211_frame *);
2801 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
2802 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1);
2805 /* Select EDCA Access Category and TX ring for this frame. */
2806 if (IEEE80211_QOS_HAS_SEQ(wh)) {
2807 qos = ((const struct ieee80211_qosframe *)wh)->i_qos[0];
2808 tid = qos & IEEE80211_QOS_TID;
2813 ac = M_WME_GETAC(m);
2815 /* Choose a TX rate index. */
2816 if (type == IEEE80211_FC0_TYPE_MGT ||
2817 type == IEEE80211_FC0_TYPE_CTL ||
2818 (m->m_flags & M_EAPOL) != 0)
2819 rate = tp->mgmtrate;
2821 rate = tp->mcastrate;
2822 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE)
2823 rate = tp->ucastrate;
2825 /* XXX pass pktlen */
2826 (void) ieee80211_ratectl_rate(ni, NULL, 0);
2827 rate = ni->ni_txrate;
2830 /* Encrypt the frame if need be. */
2831 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
2832 /* Retrieve key for TX. */
2833 k = ieee80211_crypto_encap(ni, m);
2837 swcrypt = k->wk_flags & IEEE80211_KEY_SWCRYPT;
2839 /* 802.11 header may have moved. */
2840 wh = mtod(m, struct ieee80211_frame *);
2842 totlen = m->m_pkthdr.len;
2844 if (ieee80211_radiotap_active_vap(vap)) {
2845 struct wpi_tx_radiotap_header *tap = &sc->sc_txtap;
2848 tap->wt_rate = rate;
2850 tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP;
2851 if (wh->i_fc[1] & IEEE80211_FC1_MORE_FRAG)
2852 tap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG;
2854 ieee80211_radiotap_tx(vap, m);
2859 /* Unicast frame, check if an ACK is expected. */
2860 if (!qos || (qos & IEEE80211_QOS_ACKPOLICY) !=
2861 IEEE80211_QOS_ACKPOLICY_NOACK)
2862 flags |= WPI_TX_NEED_ACK;
2865 if (!IEEE80211_QOS_HAS_SEQ(wh))
2866 flags |= WPI_TX_AUTO_SEQ;
2867 if (wh->i_fc[1] & IEEE80211_FC1_MORE_FRAG)
2868 flags |= WPI_TX_MORE_FRAG;
2870 /* Check if frame must be protected using RTS/CTS or CTS-to-self. */
2872 /* NB: Group frames are sent using CCK in 802.11b/g. */
2873 if (totlen + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) {
2874 flags |= WPI_TX_NEED_RTS;
2875 } else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
2876 WPI_RATE_IS_OFDM(rate)) {
2877 if (ic->ic_protmode == IEEE80211_PROT_CTSONLY)
2878 flags |= WPI_TX_NEED_CTS;
2879 else if (ic->ic_protmode == IEEE80211_PROT_RTSCTS)
2880 flags |= WPI_TX_NEED_RTS;
2883 if (flags & (WPI_TX_NEED_RTS | WPI_TX_NEED_CTS))
2884 flags |= WPI_TX_FULL_TXOP;
2887 memset(tx, 0, sizeof (struct wpi_cmd_data));
2888 if (type == IEEE80211_FC0_TYPE_MGT) {
2889 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
2891 /* Tell HW to set timestamp in probe responses. */
2892 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP)
2893 flags |= WPI_TX_INSERT_TSTAMP;
2894 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ ||
2895 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ)
2896 tx->timeout = htole16(3);
2898 tx->timeout = htole16(2);
2901 if (ismcast || type != IEEE80211_FC0_TYPE_DATA)
2902 tx->id = WPI_ID_BROADCAST;
2904 if (wn->id == WPI_ID_UNDEFINED) {
2905 device_printf(sc->sc_dev,
2906 "%s: undefined node id\n", __func__);
2914 switch (k->wk_cipher->ic_cipher) {
2915 case IEEE80211_CIPHER_AES_CCM:
2916 tx->security = WPI_CIPHER_CCMP;
2923 memcpy(tx->key, k->wk_key, k->wk_keylen);
2926 if (wh->i_fc[1] & IEEE80211_FC1_MORE_FRAG) {
2927 struct mbuf *next = m->m_nextpkt;
2929 tx->lnext = htole16(next->m_pkthdr.len);
2930 tx->fnext = htole32(tx->security |
2931 (flags & WPI_TX_NEED_ACK) |
2932 WPI_NEXT_STA_ID(tx->id));
2935 tx->len = htole16(totlen);
2936 tx->flags = htole32(flags);
2937 tx->plcp = rate2plcp(rate);
2939 tx->lifetime = htole32(WPI_LIFETIME_INFINITE);
2940 tx->ofdm_mask = 0xff;
2941 tx->cck_mask = 0x0f;
2943 tx->data_ntries = tp->maxretry;
2947 tx_data.size = sizeof(struct wpi_cmd_data);
2948 tx_data.code = WPI_CMD_TX_DATA;
2951 return wpi_cmd2(sc, &tx_data);
2955 wpi_tx_data_raw(struct wpi_softc *sc, struct mbuf *m,
2956 struct ieee80211_node *ni, const struct ieee80211_bpf_params *params)
2958 struct ieee80211vap *vap = ni->ni_vap;
2959 struct ieee80211_key *k = NULL;
2960 struct ieee80211_frame *wh;
2961 struct wpi_buf tx_data;
2962 struct wpi_cmd_data *tx = (struct wpi_cmd_data *)&tx_data.data;
2964 uint8_t ac, type, rate;
2965 int swcrypt, totlen;
2967 wh = mtod(m, struct ieee80211_frame *);
2968 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
2971 ac = params->ibp_pri & 3;
2973 /* Choose a TX rate index. */
2974 rate = params->ibp_rate0;
2977 if (!IEEE80211_QOS_HAS_SEQ(wh))
2978 flags |= WPI_TX_AUTO_SEQ;
2979 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
2980 flags |= WPI_TX_NEED_ACK;
2981 if (params->ibp_flags & IEEE80211_BPF_RTS)
2982 flags |= WPI_TX_NEED_RTS;
2983 if (params->ibp_flags & IEEE80211_BPF_CTS)
2984 flags |= WPI_TX_NEED_CTS;
2985 if (flags & (WPI_TX_NEED_RTS | WPI_TX_NEED_CTS))
2986 flags |= WPI_TX_FULL_TXOP;
2988 /* Encrypt the frame if need be. */
2989 if (params->ibp_flags & IEEE80211_BPF_CRYPTO) {
2990 /* Retrieve key for TX. */
2991 k = ieee80211_crypto_encap(ni, m);
2995 swcrypt = k->wk_flags & IEEE80211_KEY_SWCRYPT;
2997 /* 802.11 header may have moved. */
2998 wh = mtod(m, struct ieee80211_frame *);
3000 totlen = m->m_pkthdr.len;
3002 if (ieee80211_radiotap_active_vap(vap)) {
3003 struct wpi_tx_radiotap_header *tap = &sc->sc_txtap;
3006 tap->wt_rate = rate;
3007 if (params->ibp_flags & IEEE80211_BPF_CRYPTO)
3008 tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP;
3010 ieee80211_radiotap_tx(vap, m);
3013 memset(tx, 0, sizeof (struct wpi_cmd_data));
3014 if (type == IEEE80211_FC0_TYPE_MGT) {
3015 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
3017 /* Tell HW to set timestamp in probe responses. */
3018 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP)
3019 flags |= WPI_TX_INSERT_TSTAMP;
3020 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ ||
3021 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ)
3022 tx->timeout = htole16(3);
3024 tx->timeout = htole16(2);
3028 switch (k->wk_cipher->ic_cipher) {
3029 case IEEE80211_CIPHER_AES_CCM:
3030 tx->security = WPI_CIPHER_CCMP;
3037 memcpy(tx->key, k->wk_key, k->wk_keylen);
3040 tx->len = htole16(totlen);
3041 tx->flags = htole32(flags);
3042 tx->plcp = rate2plcp(rate);
3043 tx->id = WPI_ID_BROADCAST;
3044 tx->lifetime = htole32(WPI_LIFETIME_INFINITE);
3045 tx->rts_ntries = params->ibp_try1;
3046 tx->data_ntries = params->ibp_try0;
3050 tx_data.size = sizeof(struct wpi_cmd_data);
3051 tx_data.code = WPI_CMD_TX_DATA;
3054 return wpi_cmd2(sc, &tx_data);
3058 wpi_tx_ring_free_space(struct wpi_softc *sc, uint16_t ac)
3060 struct wpi_tx_ring *ring = &sc->txq[ac];
3063 WPI_TXQ_STATE_LOCK(sc);
3064 retval = WPI_TX_RING_HIMARK - ring->queued;
3065 WPI_TXQ_STATE_UNLOCK(sc);
3071 wpi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
3072 const struct ieee80211_bpf_params *params)
3074 struct ieee80211com *ic = ni->ni_ic;
3075 struct wpi_softc *sc = ic->ic_softc;
3079 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
3081 ac = M_WME_GETAC(m);
3085 /* NB: no fragments here */
3086 if (sc->sc_running == 0 || wpi_tx_ring_free_space(sc, ac) < 1) {
3087 error = sc->sc_running ? ENOBUFS : ENETDOWN;
3091 if (params == NULL) {
3093 * Legacy path; interpret frame contents to decide
3094 * precisely how to send the frame.
3096 error = wpi_tx_data(sc, m, ni);
3099 * Caller supplied explicit parameters to use in
3100 * sending the frame.
3102 error = wpi_tx_data_raw(sc, m, ni, params);
3105 unlock: WPI_TX_UNLOCK(sc);
3109 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
3114 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
3120 wpi_transmit(struct ieee80211com *ic, struct mbuf *m)
3122 struct wpi_softc *sc = ic->ic_softc;
3123 struct ieee80211_node *ni;
3129 DPRINTF(sc, WPI_DEBUG_XMIT, "%s: called\n", __func__);
3131 /* Check if interface is up & running. */
3132 if (__predict_false(sc->sc_running == 0)) {
3138 for (mnext = m->m_nextpkt; mnext != NULL; mnext = mnext->m_nextpkt)
3141 /* Check for available space. */
3142 ac = M_WME_GETAC(m);
3143 if (wpi_tx_ring_free_space(sc, ac) < nmbufs) {
3149 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
3151 mnext = m->m_nextpkt;
3152 if (wpi_tx_data(sc, m, ni) != 0) {
3153 if_inc_counter(ni->ni_vap->iv_ifp, IFCOUNTER_OERRORS,
3155 wpi_free_txfrags(sc, ac);
3156 ieee80211_free_mbuf(m);
3157 ieee80211_free_node(ni);
3160 } while((m = mnext) != NULL);
3162 DPRINTF(sc, WPI_DEBUG_XMIT, "%s: done\n", __func__);
3164 unlock: WPI_TX_UNLOCK(sc);
3170 wpi_watchdog_rfkill(void *arg)
3172 struct wpi_softc *sc = arg;
3173 struct ieee80211com *ic = &sc->sc_ic;
3175 DPRINTF(sc, WPI_DEBUG_WATCHDOG, "RFkill Watchdog: tick\n");
3177 /* No need to lock firmware memory. */
3178 if ((wpi_prph_read(sc, WPI_APMG_RFKILL) & 0x1) == 0) {
3179 /* Radio kill switch is still off. */
3180 callout_reset(&sc->watchdog_rfkill, hz, wpi_watchdog_rfkill,
3183 ieee80211_runtask(ic, &sc->sc_radioon_task);
3187 wpi_scan_timeout(void *arg)
3189 struct wpi_softc *sc = arg;
3190 struct ieee80211com *ic = &sc->sc_ic;
3192 ic_printf(ic, "scan timeout\n");
3193 ieee80211_restart_all(ic);
3197 wpi_tx_timeout(void *arg)
3199 struct wpi_softc *sc = arg;
3200 struct ieee80211com *ic = &sc->sc_ic;
3202 ic_printf(ic, "device timeout\n");
3203 ieee80211_restart_all(ic);
3207 wpi_parent(struct ieee80211com *ic)
3209 struct wpi_softc *sc = ic->ic_softc;
3210 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3212 if (ic->ic_nrunning > 0) {
3213 if (wpi_init(sc) == 0) {
3214 ieee80211_notify_radio(ic, 1);
3215 ieee80211_start_all(ic);
3217 ieee80211_notify_radio(ic, 0);
3218 ieee80211_stop(vap);
3221 ieee80211_notify_radio(ic, 0);
3227 * Send a command to the firmware.
3230 wpi_cmd(struct wpi_softc *sc, uint8_t code, const void *buf, uint16_t size,
3233 struct wpi_tx_ring *ring = &sc->txq[WPI_CMD_QUEUE_NUM];
3234 struct wpi_tx_desc *desc;
3235 struct wpi_tx_data *data;
3236 struct wpi_tx_cmd *cmd;
3244 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
3246 if (__predict_false(sc->sc_running == 0)) {
3247 /* wpi_stop() was called */
3248 if (code == WPI_CMD_SCAN)
3257 WPI_LOCK_ASSERT(sc);
3259 DPRINTF(sc, WPI_DEBUG_CMD, "%s: cmd %s size %u async %d\n",
3260 __func__, wpi_cmd_str(code), size, async);
3262 desc = &ring->desc[ring->cur];
3263 data = &ring->data[ring->cur];
3266 if (size > sizeof cmd->data) {
3267 /* Command is too large to fit in a descriptor. */
3268 if (totlen > MCLBYTES) {
3272 m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE);
3277 cmd = mtod(m, struct wpi_tx_cmd *);
3278 error = bus_dmamap_load(ring->data_dmat, data->map, cmd,
3279 totlen, wpi_dma_map_addr, &paddr, BUS_DMA_NOWAIT);
3286 cmd = &ring->cmd[ring->cur];
3287 paddr = data->cmd_paddr;
3292 cmd->qid = ring->qid;
3293 cmd->idx = ring->cur;
3294 memcpy(cmd->data, buf, size);
3296 desc->nsegs = 1 + (WPI_PAD32(size) << 4);
3297 desc->segs[0].addr = htole32(paddr);
3298 desc->segs[0].len = htole32(totlen);
3300 if (size > sizeof cmd->data) {
3301 bus_dmamap_sync(ring->data_dmat, data->map,
3302 BUS_DMASYNC_PREWRITE);
3304 bus_dmamap_sync(ring->data_dmat, ring->cmd_dma.map,
3305 BUS_DMASYNC_PREWRITE);
3307 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
3308 BUS_DMASYNC_PREWRITE);
3310 /* Kick command ring. */
3311 ring->cur = (ring->cur + 1) % WPI_TX_RING_COUNT;
3312 sc->sc_update_tx_ring(sc, ring);
3314 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
3318 return async ? 0 : mtx_sleep(cmd, &sc->sc_mtx, PCATCH, "wpicmd", hz);
3320 fail: DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
3328 * Configure HW multi-rate retries.
3331 wpi_mrr_setup(struct wpi_softc *sc)
3333 struct ieee80211com *ic = &sc->sc_ic;
3334 struct wpi_mrr_setup mrr;
3338 /* CCK rates (not used with 802.11a). */
3339 for (i = WPI_RIDX_CCK1; i <= WPI_RIDX_CCK11; i++) {
3340 mrr.rates[i].flags = 0;
3341 mrr.rates[i].plcp = wpi_ridx_to_plcp[i];
3342 /* Fallback to the immediate lower CCK rate (if any.) */
3344 (i == WPI_RIDX_CCK1) ? WPI_RIDX_CCK1 : i - 1;
3345 /* Try twice at this rate before falling back to "next". */
3346 mrr.rates[i].ntries = WPI_NTRIES_DEFAULT;
3348 /* OFDM rates (not used with 802.11b). */
3349 for (i = WPI_RIDX_OFDM6; i <= WPI_RIDX_OFDM54; i++) {
3350 mrr.rates[i].flags = 0;
3351 mrr.rates[i].plcp = wpi_ridx_to_plcp[i];
3352 /* Fallback to the immediate lower rate (if any.) */
3353 /* We allow fallback from OFDM/6 to CCK/2 in 11b/g mode. */
3354 mrr.rates[i].next = (i == WPI_RIDX_OFDM6) ?
3355 ((ic->ic_curmode == IEEE80211_MODE_11A) ?
3356 WPI_RIDX_OFDM6 : WPI_RIDX_CCK2) :
3358 /* Try twice at this rate before falling back to "next". */
3359 mrr.rates[i].ntries = WPI_NTRIES_DEFAULT;
3361 /* Setup MRR for control frames. */
3362 mrr.which = htole32(WPI_MRR_CTL);
3363 error = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof mrr, 0);
3365 device_printf(sc->sc_dev,
3366 "could not setup MRR for control frames\n");
3369 /* Setup MRR for data frames. */
3370 mrr.which = htole32(WPI_MRR_DATA);
3371 error = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof mrr, 0);
3373 device_printf(sc->sc_dev,
3374 "could not setup MRR for data frames\n");
3381 wpi_add_node(struct wpi_softc *sc, struct ieee80211_node *ni)
3383 struct ieee80211com *ic = ni->ni_ic;
3384 struct wpi_vap *wvp = WPI_VAP(ni->ni_vap);
3385 struct wpi_node *wn = WPI_NODE(ni);
3386 struct wpi_node_info node;
3389 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3391 if (wn->id == WPI_ID_UNDEFINED)
3394 memset(&node, 0, sizeof node);
3395 IEEE80211_ADDR_COPY(node.macaddr, ni->ni_macaddr);
3397 node.plcp = (ic->ic_curmode == IEEE80211_MODE_11A) ?
3398 wpi_ridx_to_plcp[WPI_RIDX_OFDM6] : wpi_ridx_to_plcp[WPI_RIDX_CCK1];
3399 node.action = htole32(WPI_ACTION_SET_RATE);
3400 node.antenna = WPI_ANTENNA_BOTH;
3402 DPRINTF(sc, WPI_DEBUG_NODE, "%s: adding node %d (%s)\n", __func__,
3403 wn->id, ether_sprintf(ni->ni_macaddr));
3405 error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 1);
3407 device_printf(sc->sc_dev,
3408 "%s: wpi_cmd() call failed with error code %d\n", __func__,
3413 if (wvp->wv_gtk != 0) {
3414 error = wpi_set_global_keys(ni);
3416 device_printf(sc->sc_dev,
3417 "%s: error while setting global keys\n", __func__);
3426 * Broadcast node is used to send group-addressed and management frames.
3429 wpi_add_broadcast_node(struct wpi_softc *sc, int async)
3431 struct ieee80211com *ic = &sc->sc_ic;
3432 struct wpi_node_info node;
3434 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3436 memset(&node, 0, sizeof node);
3437 IEEE80211_ADDR_COPY(node.macaddr, ieee80211broadcastaddr);
3438 node.id = WPI_ID_BROADCAST;
3439 node.plcp = (ic->ic_curmode == IEEE80211_MODE_11A) ?
3440 wpi_ridx_to_plcp[WPI_RIDX_OFDM6] : wpi_ridx_to_plcp[WPI_RIDX_CCK1];
3441 node.action = htole32(WPI_ACTION_SET_RATE);
3442 node.antenna = WPI_ANTENNA_BOTH;
3444 DPRINTF(sc, WPI_DEBUG_NODE, "%s: adding broadcast node\n", __func__);
3446 return wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, async);
3450 wpi_add_sta_node(struct wpi_softc *sc, struct ieee80211_node *ni)
3452 struct wpi_node *wn = WPI_NODE(ni);
3455 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3457 wn->id = wpi_add_node_entry_sta(sc);
3459 if ((error = wpi_add_node(sc, ni)) != 0) {
3460 wpi_del_node_entry(sc, wn->id);
3461 wn->id = WPI_ID_UNDEFINED;
3469 wpi_add_ibss_node(struct wpi_softc *sc, struct ieee80211_node *ni)
3471 struct wpi_node *wn = WPI_NODE(ni);
3474 KASSERT(wn->id == WPI_ID_UNDEFINED,
3475 ("the node %d was added before", wn->id));
3477 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3479 if ((wn->id = wpi_add_node_entry_adhoc(sc)) == WPI_ID_UNDEFINED) {
3480 device_printf(sc->sc_dev, "%s: h/w table is full\n", __func__);
3484 if ((error = wpi_add_node(sc, ni)) != 0) {
3485 wpi_del_node_entry(sc, wn->id);
3486 wn->id = WPI_ID_UNDEFINED;
3494 wpi_del_node(struct wpi_softc *sc, struct ieee80211_node *ni)
3496 struct wpi_node *wn = WPI_NODE(ni);
3497 struct wpi_cmd_del_node node;
3500 KASSERT(wn->id != WPI_ID_UNDEFINED, ("undefined node id passed"));
3502 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3504 memset(&node, 0, sizeof node);
3505 IEEE80211_ADDR_COPY(node.macaddr, ni->ni_macaddr);
3508 DPRINTF(sc, WPI_DEBUG_NODE, "%s: deleting node %d (%s)\n", __func__,
3509 wn->id, ether_sprintf(ni->ni_macaddr));
3511 error = wpi_cmd(sc, WPI_CMD_DEL_NODE, &node, sizeof node, 1);
3513 device_printf(sc->sc_dev,
3514 "%s: could not delete node %u, error %d\n", __func__,
3520 wpi_updateedca(struct ieee80211com *ic)
3522 #define WPI_EXP2(x) ((1 << (x)) - 1) /* CWmin = 2^ECWmin - 1 */
3523 struct wpi_softc *sc = ic->ic_softc;
3524 struct chanAccParams chp;
3525 struct wpi_edca_params cmd;
3528 ieee80211_wme_ic_getparams(ic, &chp);
3530 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
3532 memset(&cmd, 0, sizeof cmd);
3533 cmd.flags = htole32(WPI_EDCA_UPDATE);
3534 for (aci = 0; aci < WME_NUM_AC; aci++) {
3535 const struct wmeParams *ac = &chp.cap_wmeParams[aci];
3536 cmd.ac[aci].aifsn = ac->wmep_aifsn;
3537 cmd.ac[aci].cwmin = htole16(WPI_EXP2(ac->wmep_logcwmin));
3538 cmd.ac[aci].cwmax = htole16(WPI_EXP2(ac->wmep_logcwmax));
3539 cmd.ac[aci].txoplimit =
3540 htole16(IEEE80211_TXOP_TO_US(ac->wmep_txopLimit));
3542 DPRINTF(sc, WPI_DEBUG_EDCA,
3543 "setting WME for queue %d aifsn=%d cwmin=%d cwmax=%d "
3544 "txoplimit=%d\n", aci, cmd.ac[aci].aifsn,
3545 cmd.ac[aci].cwmin, cmd.ac[aci].cwmax,
3546 cmd.ac[aci].txoplimit);
3548 error = wpi_cmd(sc, WPI_CMD_EDCA_PARAMS, &cmd, sizeof cmd, 1);
3550 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
3557 wpi_set_promisc(struct wpi_softc *sc)
3559 struct ieee80211com *ic = &sc->sc_ic;
3560 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3561 uint32_t promisc_filter;
3563 promisc_filter = WPI_FILTER_CTL;
3564 if (vap != NULL && vap->iv_opmode != IEEE80211_M_HOSTAP)
3565 promisc_filter |= WPI_FILTER_PROMISC;
3567 if (ic->ic_promisc > 0)
3568 sc->rxon.filter |= htole32(promisc_filter);
3570 sc->rxon.filter &= ~htole32(promisc_filter);
3574 wpi_update_promisc(struct ieee80211com *ic)
3576 struct wpi_softc *sc = ic->ic_softc;
3579 if (sc->sc_running == 0) {
3586 wpi_set_promisc(sc);
3588 if (wpi_send_rxon(sc, 1, 1) != 0) {
3589 device_printf(sc->sc_dev, "%s: could not send RXON\n",
3592 WPI_RXON_UNLOCK(sc);
3596 wpi_update_mcast(struct ieee80211com *ic)
3602 wpi_set_led(struct wpi_softc *sc, uint8_t which, uint8_t off, uint8_t on)
3604 struct wpi_cmd_led led;
3606 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3609 led.unit = htole32(100000); /* on/off in unit of 100ms */
3612 (void)wpi_cmd(sc, WPI_CMD_SET_LED, &led, sizeof led, 1);
3616 wpi_set_timing(struct wpi_softc *sc, struct ieee80211_node *ni)
3618 struct wpi_cmd_timing cmd;
3621 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3623 memset(&cmd, 0, sizeof cmd);
3624 memcpy(&cmd.tstamp, ni->ni_tstamp.data, sizeof (uint64_t));
3625 cmd.bintval = htole16(ni->ni_intval);
3626 cmd.lintval = htole16(10);
3628 /* Compute remaining time until next beacon. */
3629 val = (uint64_t)ni->ni_intval * IEEE80211_DUR_TU;
3630 mod = le64toh(cmd.tstamp) % val;
3631 cmd.binitval = htole32((uint32_t)(val - mod));
3633 DPRINTF(sc, WPI_DEBUG_RESET, "timing bintval=%u tstamp=%ju, init=%u\n",
3634 ni->ni_intval, le64toh(cmd.tstamp), (uint32_t)(val - mod));
3636 return wpi_cmd(sc, WPI_CMD_TIMING, &cmd, sizeof cmd, 1);
3640 * This function is called periodically (every 60 seconds) to adjust output
3641 * power to temperature changes.
3644 wpi_power_calibration(struct wpi_softc *sc)
3648 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3650 /* Update sensor data. */
3651 temp = (int)WPI_READ(sc, WPI_UCODE_GP2);
3652 DPRINTF(sc, WPI_DEBUG_TEMP, "Temp in calibration is: %d\n", temp);
3654 /* Sanity-check read value. */
3655 if (temp < -260 || temp > 25) {
3656 /* This can't be correct, ignore. */
3657 DPRINTF(sc, WPI_DEBUG_TEMP,
3658 "out-of-range temperature reported: %d\n", temp);
3662 DPRINTF(sc, WPI_DEBUG_TEMP, "temperature %d->%d\n", sc->temp, temp);
3664 /* Adjust Tx power if need be. */
3665 if (abs(temp - sc->temp) <= 6)
3670 if (wpi_set_txpower(sc, 1) != 0) {
3671 /* just warn, too bad for the automatic calibration... */
3672 device_printf(sc->sc_dev,"could not adjust Tx power\n");
3677 * Set TX power for current channel.
3680 wpi_set_txpower(struct wpi_softc *sc, int async)
3682 struct wpi_power_group *group;
3683 struct wpi_cmd_txpower cmd;
3685 int idx, is_chan_5ghz, i;
3687 /* Retrieve current channel from last RXON. */
3688 chan = sc->rxon.chan;
3689 is_chan_5ghz = (sc->rxon.flags & htole32(WPI_RXON_24GHZ)) == 0;
3691 /* Find the TX power group to which this channel belongs. */
3693 for (group = &sc->groups[1]; group < &sc->groups[4]; group++)
3694 if (chan <= group->chan)
3697 group = &sc->groups[0];
3699 memset(&cmd, 0, sizeof cmd);
3700 cmd.band = is_chan_5ghz ? WPI_BAND_5GHZ : WPI_BAND_2GHZ;
3701 cmd.chan = htole16(chan);
3703 /* Set TX power for all OFDM and CCK rates. */
3704 for (i = 0; i <= WPI_RIDX_MAX ; i++) {
3705 /* Retrieve TX power for this channel/rate. */
3706 idx = wpi_get_power_index(sc, group, chan, is_chan_5ghz, i);
3708 cmd.rates[i].plcp = wpi_ridx_to_plcp[i];
3711 cmd.rates[i].rf_gain = wpi_rf_gain_5ghz[idx];
3712 cmd.rates[i].dsp_gain = wpi_dsp_gain_5ghz[idx];
3714 cmd.rates[i].rf_gain = wpi_rf_gain_2ghz[idx];
3715 cmd.rates[i].dsp_gain = wpi_dsp_gain_2ghz[idx];
3717 DPRINTF(sc, WPI_DEBUG_TEMP,
3718 "chan %d/ridx %d: power index %d\n", chan, i, idx);
3721 return wpi_cmd(sc, WPI_CMD_TXPOWER, &cmd, sizeof cmd, async);
3725 * Determine Tx power index for a given channel/rate combination.
3726 * This takes into account the regulatory information from EEPROM and the
3727 * current temperature.
3730 wpi_get_power_index(struct wpi_softc *sc, struct wpi_power_group *group,
3731 uint8_t chan, int is_chan_5ghz, int ridx)
3733 /* Fixed-point arithmetic division using a n-bit fractional part. */
3734 #define fdivround(a, b, n) \
3735 ((((1 << n) * (a)) / (b) + (1 << n) / 2) / (1 << n))
3737 /* Linear interpolation. */
3738 #define interpolate(x, x1, y1, x2, y2, n) \
3739 ((y1) + fdivround(((x) - (x1)) * ((y2) - (y1)), (x2) - (x1), n))
3741 struct wpi_power_sample *sample;
3744 /* Default TX power is group maximum TX power minus 3dB. */
3745 pwr = group->maxpwr / 2;
3747 /* Decrease TX power for highest OFDM rates to reduce distortion. */
3749 case WPI_RIDX_OFDM36:
3750 pwr -= is_chan_5ghz ? 5 : 0;
3752 case WPI_RIDX_OFDM48:
3753 pwr -= is_chan_5ghz ? 10 : 7;
3755 case WPI_RIDX_OFDM54:
3756 pwr -= is_chan_5ghz ? 12 : 9;
3760 /* Never exceed the channel maximum allowed TX power. */
3761 pwr = min(pwr, sc->maxpwr[chan]);
3763 /* Retrieve TX power index into gain tables from samples. */
3764 for (sample = group->samples; sample < &group->samples[3]; sample++)
3765 if (pwr > sample[1].power)
3767 /* Fixed-point linear interpolation using a 19-bit fractional part. */
3768 idx = interpolate(pwr, sample[0].power, sample[0].index,
3769 sample[1].power, sample[1].index, 19);
3772 * Adjust power index based on current temperature:
3773 * - if cooler than factory-calibrated: decrease output power
3774 * - if warmer than factory-calibrated: increase output power
3776 idx -= (sc->temp - group->temp) * 11 / 100;
3778 /* Decrease TX power for CCK rates (-5dB). */
3779 if (ridx >= WPI_RIDX_CCK1)
3782 /* Make sure idx stays in a valid range. */
3785 if (idx > WPI_MAX_PWR_INDEX)
3786 return WPI_MAX_PWR_INDEX;
3794 * Set STA mode power saving level (between 0 and 5).
3795 * Level 0 is CAM (Continuously Aware Mode), 5 is for maximum power saving.
3798 wpi_set_pslevel(struct wpi_softc *sc, uint8_t dtim, int level, int async)
3800 struct wpi_pmgt_cmd cmd;
3801 const struct wpi_pmgt *pmgt;
3806 DPRINTF(sc, WPI_DEBUG_PWRSAVE,
3807 "%s: dtim=%d, level=%d, async=%d\n",
3808 __func__, dtim, level, async);
3810 /* Select which PS parameters to use. */
3812 pmgt = &wpi_pmgt[0][level];
3814 pmgt = &wpi_pmgt[1][level];
3816 memset(&cmd, 0, sizeof cmd);
3817 if (level != 0) /* not CAM */
3818 cmd.flags |= htole16(WPI_PS_ALLOW_SLEEP);
3819 /* Retrieve PCIe Active State Power Management (ASPM). */
3820 reg = pci_read_config(sc->sc_dev, sc->sc_cap_off + PCIER_LINK_CTL, 1);
3821 if (!(reg & PCIEM_LINK_CTL_ASPMC_L0S)) /* L0s Entry disabled. */
3822 cmd.flags |= htole16(WPI_PS_PCI_PMGT);
3824 cmd.rxtimeout = htole32(pmgt->rxtimeout * IEEE80211_DUR_TU);
3825 cmd.txtimeout = htole32(pmgt->txtimeout * IEEE80211_DUR_TU);
3831 skip_dtim = pmgt->skip_dtim;
3833 if (skip_dtim != 0) {
3834 cmd.flags |= htole16(WPI_PS_SLEEP_OVER_DTIM);
3835 max = pmgt->intval[4];
3836 if (max == (uint32_t)-1)
3837 max = dtim * (skip_dtim + 1);
3838 else if (max > dtim)
3839 max = rounddown(max, dtim);
3843 for (i = 0; i < 5; i++)
3844 cmd.intval[i] = htole32(MIN(max, pmgt->intval[i]));
3846 return wpi_cmd(sc, WPI_CMD_SET_POWER_MODE, &cmd, sizeof cmd, async);
3850 wpi_send_btcoex(struct wpi_softc *sc)
3852 struct wpi_bluetooth cmd;
3854 memset(&cmd, 0, sizeof cmd);
3855 cmd.flags = WPI_BT_COEX_MODE_4WIRE;
3856 cmd.lead_time = WPI_BT_LEAD_TIME_DEF;
3857 cmd.max_kill = WPI_BT_MAX_KILL_DEF;
3858 DPRINTF(sc, WPI_DEBUG_RESET, "%s: configuring bluetooth coexistence\n",
3860 return wpi_cmd(sc, WPI_CMD_BT_COEX, &cmd, sizeof(cmd), 0);
3864 wpi_send_rxon(struct wpi_softc *sc, int assoc, int async)
3869 WPI_RXON_LOCK_ASSERT(sc);
3871 if (assoc && wpi_check_bss_filter(sc) != 0) {
3872 struct wpi_assoc rxon_assoc;
3874 rxon_assoc.flags = sc->rxon.flags;
3875 rxon_assoc.filter = sc->rxon.filter;
3876 rxon_assoc.ofdm_mask = sc->rxon.ofdm_mask;
3877 rxon_assoc.cck_mask = sc->rxon.cck_mask;
3878 rxon_assoc.reserved = 0;
3880 error = wpi_cmd(sc, WPI_CMD_RXON_ASSOC, &rxon_assoc,
3881 sizeof (struct wpi_assoc), async);
3883 device_printf(sc->sc_dev,
3884 "RXON_ASSOC command failed, error %d\n", error);
3890 error = wpi_cmd(sc, WPI_CMD_RXON, &sc->rxon,
3891 sizeof (struct wpi_rxon), async);
3893 wpi_clear_node_table(sc);
3896 error = wpi_cmd(sc, WPI_CMD_RXON, &sc->rxon,
3897 sizeof (struct wpi_rxon), async);
3899 wpi_clear_node_table(sc);
3903 device_printf(sc->sc_dev,
3904 "RXON command failed, error %d\n", error);
3908 /* Add broadcast node. */
3909 error = wpi_add_broadcast_node(sc, async);
3911 device_printf(sc->sc_dev,
3912 "could not add broadcast node, error %d\n", error);
3917 /* Configuration has changed, set Tx power accordingly. */
3918 if ((error = wpi_set_txpower(sc, async)) != 0) {
3919 device_printf(sc->sc_dev,
3920 "%s: could not set TX power, error %d\n", __func__, error);
3928 * Configure the card to listen to a particular channel, this transisions the
3929 * card in to being able to receive frames from remote devices.
3932 wpi_config(struct wpi_softc *sc)
3934 struct ieee80211com *ic = &sc->sc_ic;
3935 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3936 struct ieee80211_channel *c = ic->ic_curchan;
3939 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
3941 /* Set power saving level to CAM during initialization. */
3942 if ((error = wpi_set_pslevel(sc, 0, 0, 0)) != 0) {
3943 device_printf(sc->sc_dev,
3944 "%s: could not set power saving level\n", __func__);
3948 /* Configure bluetooth coexistence. */
3949 if ((error = wpi_send_btcoex(sc)) != 0) {
3950 device_printf(sc->sc_dev,
3951 "could not configure bluetooth coexistence\n");
3955 /* Configure adapter. */
3956 memset(&sc->rxon, 0, sizeof (struct wpi_rxon));
3957 IEEE80211_ADDR_COPY(sc->rxon.myaddr, vap->iv_myaddr);
3959 /* Set default channel. */
3960 sc->rxon.chan = ieee80211_chan2ieee(ic, c);
3961 sc->rxon.flags = htole32(WPI_RXON_TSF | WPI_RXON_CTS_TO_SELF);
3962 if (IEEE80211_IS_CHAN_2GHZ(c))
3963 sc->rxon.flags |= htole32(WPI_RXON_AUTO | WPI_RXON_24GHZ);
3965 sc->rxon.filter = WPI_FILTER_MULTICAST;
3966 switch (ic->ic_opmode) {
3967 case IEEE80211_M_STA:
3968 sc->rxon.mode = WPI_MODE_STA;
3970 case IEEE80211_M_IBSS:
3971 sc->rxon.mode = WPI_MODE_IBSS;
3972 sc->rxon.filter |= WPI_FILTER_BEACON;
3974 case IEEE80211_M_HOSTAP:
3975 /* XXX workaround for beaconing */
3976 sc->rxon.mode = WPI_MODE_IBSS;
3977 sc->rxon.filter |= WPI_FILTER_ASSOC | WPI_FILTER_PROMISC;
3979 case IEEE80211_M_AHDEMO:
3980 sc->rxon.mode = WPI_MODE_HOSTAP;
3982 case IEEE80211_M_MONITOR:
3983 sc->rxon.mode = WPI_MODE_MONITOR;
3986 device_printf(sc->sc_dev, "unknown opmode %d\n",
3990 sc->rxon.filter = htole32(sc->rxon.filter);
3991 wpi_set_promisc(sc);
3992 sc->rxon.cck_mask = 0x0f; /* not yet negotiated */
3993 sc->rxon.ofdm_mask = 0xff; /* not yet negotiated */
3995 if ((error = wpi_send_rxon(sc, 0, 0)) != 0) {
3996 device_printf(sc->sc_dev, "%s: could not send RXON\n",
4001 /* Setup rate scalling. */
4002 if ((error = wpi_mrr_setup(sc)) != 0) {
4003 device_printf(sc->sc_dev, "could not setup MRR, error %d\n",
4008 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
4014 wpi_get_active_dwell_time(struct wpi_softc *sc,
4015 struct ieee80211_channel *c, uint8_t n_probes)
4017 /* No channel? Default to 2GHz settings. */
4018 if (c == NULL || IEEE80211_IS_CHAN_2GHZ(c)) {
4019 return (WPI_ACTIVE_DWELL_TIME_2GHZ +
4020 WPI_ACTIVE_DWELL_FACTOR_2GHZ * (n_probes + 1));
4023 /* 5GHz dwell time. */
4024 return (WPI_ACTIVE_DWELL_TIME_5GHZ +
4025 WPI_ACTIVE_DWELL_FACTOR_5GHZ * (n_probes + 1));
4029 * Limit the total dwell time.
4031 * Returns the dwell time in milliseconds.
4034 wpi_limit_dwell(struct wpi_softc *sc, uint16_t dwell_time)
4036 struct ieee80211com *ic = &sc->sc_ic;
4037 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
4038 uint16_t bintval = 0;
4040 /* bintval is in TU (1.024mS) */
4042 bintval = vap->iv_bss->ni_intval;
4045 * If it's non-zero, we should calculate the minimum of
4046 * it and the DWELL_BASE.
4048 * XXX Yes, the math should take into account that bintval
4049 * is 1.024mS, not 1mS..
4052 DPRINTF(sc, WPI_DEBUG_SCAN, "%s: bintval=%d\n", __func__,
4054 return (MIN(dwell_time, bintval - WPI_CHANNEL_TUNE_TIME * 2));
4057 /* No association context? Default. */
4062 wpi_get_passive_dwell_time(struct wpi_softc *sc, struct ieee80211_channel *c)
4066 if (c == NULL || IEEE80211_IS_CHAN_2GHZ(c))
4067 passive = WPI_PASSIVE_DWELL_BASE + WPI_PASSIVE_DWELL_TIME_2GHZ;
4069 passive = WPI_PASSIVE_DWELL_BASE + WPI_PASSIVE_DWELL_TIME_5GHZ;
4071 /* Clamp to the beacon interval if we're associated. */
4072 return (wpi_limit_dwell(sc, passive));
4076 wpi_get_scan_pause_time(uint32_t time, uint16_t bintval)
4078 uint32_t mod = (time % bintval) * IEEE80211_DUR_TU;
4079 uint32_t nbeacons = time / bintval;
4081 if (mod > WPI_PAUSE_MAX_TIME)
4082 mod = WPI_PAUSE_MAX_TIME;
4084 return WPI_PAUSE_SCAN(nbeacons, mod);
4088 * Send a scan request to the firmware.
4091 wpi_scan(struct wpi_softc *sc, struct ieee80211_channel *c)
4093 struct ieee80211com *ic = &sc->sc_ic;
4094 struct ieee80211_scan_state *ss = ic->ic_scan;
4095 struct ieee80211vap *vap = ss->ss_vap;
4096 struct wpi_scan_hdr *hdr;
4097 struct wpi_cmd_data *tx;
4098 struct wpi_scan_essid *essids;
4099 struct wpi_scan_chan *chan;
4100 struct ieee80211_frame *wh;
4101 struct ieee80211_rateset *rs;
4102 uint16_t bintval, buflen, dwell_active, dwell_passive;
4103 uint8_t *buf, *frm, i, nssid;
4106 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
4109 * We are absolutely not allowed to send a scan command when another
4110 * scan command is pending.
4112 if (callout_pending(&sc->scan_timeout)) {
4113 device_printf(sc->sc_dev, "%s: called whilst scanning!\n",
4119 bgscan = wpi_check_bss_filter(sc);
4120 bintval = vap->iv_bss->ni_intval;
4122 bintval < WPI_QUIET_TIME_DEFAULT + WPI_CHANNEL_TUNE_TIME * 2) {
4127 buf = malloc(WPI_SCAN_MAXSZ, M_DEVBUF, M_NOWAIT | M_ZERO);
4129 device_printf(sc->sc_dev,
4130 "%s: could not allocate buffer for scan command\n",
4135 hdr = (struct wpi_scan_hdr *)buf;
4138 * Move to the next channel if no packets are received within 10 msecs
4139 * after sending the probe request.
4141 hdr->quiet_time = htole16(WPI_QUIET_TIME_DEFAULT);
4142 hdr->quiet_threshold = htole16(1);
4146 * Max needs to be greater than active and passive and quiet!
4147 * It's also in microseconds!
4149 hdr->max_svc = htole32(250 * IEEE80211_DUR_TU);
4150 hdr->pause_svc = htole32(wpi_get_scan_pause_time(100,
4154 hdr->filter = htole32(WPI_FILTER_MULTICAST | WPI_FILTER_BEACON);
4156 tx = (struct wpi_cmd_data *)(hdr + 1);
4157 tx->flags = htole32(WPI_TX_AUTO_SEQ);
4158 tx->id = WPI_ID_BROADCAST;
4159 tx->lifetime = htole32(WPI_LIFETIME_INFINITE);
4161 if (IEEE80211_IS_CHAN_5GHZ(c)) {
4162 /* Send probe requests at 6Mbps. */
4163 tx->plcp = wpi_ridx_to_plcp[WPI_RIDX_OFDM6];
4164 rs = &ic->ic_sup_rates[IEEE80211_MODE_11A];
4166 hdr->flags = htole32(WPI_RXON_24GHZ | WPI_RXON_AUTO);
4167 /* Send probe requests at 1Mbps. */
4168 tx->plcp = wpi_ridx_to_plcp[WPI_RIDX_CCK1];
4169 rs = &ic->ic_sup_rates[IEEE80211_MODE_11G];
4172 essids = (struct wpi_scan_essid *)(tx + 1);
4173 nssid = MIN(ss->ss_nssid, WPI_SCAN_MAX_ESSIDS);
4174 for (i = 0; i < nssid; i++) {
4175 essids[i].id = IEEE80211_ELEMID_SSID;
4176 essids[i].len = MIN(ss->ss_ssid[i].len, IEEE80211_NWID_LEN);
4177 memcpy(essids[i].data, ss->ss_ssid[i].ssid, essids[i].len);
4179 if (sc->sc_debug & WPI_DEBUG_SCAN) {
4180 printf("Scanning Essid: ");
4181 ieee80211_print_essid(essids[i].data, essids[i].len);
4188 * Build a probe request frame. Most of the following code is a
4189 * copy & paste of what is done in net80211.
4191 wh = (struct ieee80211_frame *)(essids + WPI_SCAN_MAX_ESSIDS);
4192 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT |
4193 IEEE80211_FC0_SUBTYPE_PROBE_REQ;
4194 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS;
4195 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr);
4196 IEEE80211_ADDR_COPY(wh->i_addr2, vap->iv_myaddr);
4197 IEEE80211_ADDR_COPY(wh->i_addr3, ieee80211broadcastaddr);
4199 frm = (uint8_t *)(wh + 1);
4200 frm = ieee80211_add_ssid(frm, NULL, 0);
4201 frm = ieee80211_add_rates(frm, rs);
4202 if (rs->rs_nrates > IEEE80211_RATE_SIZE)
4203 frm = ieee80211_add_xrates(frm, rs);
4205 /* Set length of probe request. */
4206 tx->len = htole16(frm - (uint8_t *)wh);
4209 * Construct information about the channel that we
4210 * want to scan. The firmware expects this to be directly
4211 * after the scan probe request
4213 chan = (struct wpi_scan_chan *)frm;
4214 chan->chan = ieee80211_chan2ieee(ic, c);
4217 hdr->crc_threshold = WPI_SCAN_CRC_TH_DEFAULT;
4218 chan->flags |= WPI_CHAN_NPBREQS(nssid);
4220 hdr->crc_threshold = WPI_SCAN_CRC_TH_NEVER;
4222 if (!IEEE80211_IS_CHAN_PASSIVE(c))
4223 chan->flags |= WPI_CHAN_ACTIVE;
4226 * Calculate the active/passive dwell times.
4228 dwell_active = wpi_get_active_dwell_time(sc, c, nssid);
4229 dwell_passive = wpi_get_passive_dwell_time(sc, c);
4231 /* Make sure they're valid. */
4232 if (dwell_active > dwell_passive)
4233 dwell_active = dwell_passive;
4235 chan->active = htole16(dwell_active);
4236 chan->passive = htole16(dwell_passive);
4238 chan->dsp_gain = 0x6e; /* Default level */
4240 if (IEEE80211_IS_CHAN_5GHZ(c))
4241 chan->rf_gain = 0x3b;
4243 chan->rf_gain = 0x28;
4245 DPRINTF(sc, WPI_DEBUG_SCAN, "Scanning %u Passive: %d\n",
4246 chan->chan, IEEE80211_IS_CHAN_PASSIVE(c));
4250 if (hdr->nchan == 1 && sc->rxon.chan == chan->chan) {
4251 /* XXX Force probe request transmission. */
4252 memcpy(chan + 1, chan, sizeof (struct wpi_scan_chan));
4256 /* Reduce unnecessary delay. */
4258 chan->passive = chan->active = hdr->quiet_time;
4265 buflen = (uint8_t *)chan - buf;
4266 hdr->len = htole16(buflen);
4268 DPRINTF(sc, WPI_DEBUG_CMD, "sending scan command nchan=%d\n",
4270 error = wpi_cmd(sc, WPI_CMD_SCAN, buf, buflen, 1);
4271 free(buf, M_DEVBUF);
4276 callout_reset(&sc->scan_timeout, 5*hz, wpi_scan_timeout, sc);
4278 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
4282 fail: DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
4288 wpi_auth(struct wpi_softc *sc, struct ieee80211vap *vap)
4290 struct ieee80211com *ic = vap->iv_ic;
4291 struct ieee80211_node *ni = vap->iv_bss;
4292 struct ieee80211_channel *c = ni->ni_chan;
4297 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
4299 /* Update adapter configuration. */
4300 sc->rxon.associd = 0;
4301 sc->rxon.filter &= ~htole32(WPI_FILTER_BSS);
4302 IEEE80211_ADDR_COPY(sc->rxon.bssid, ni->ni_bssid);
4303 sc->rxon.chan = ieee80211_chan2ieee(ic, c);
4304 sc->rxon.flags = htole32(WPI_RXON_TSF | WPI_RXON_CTS_TO_SELF);
4305 if (IEEE80211_IS_CHAN_2GHZ(c))
4306 sc->rxon.flags |= htole32(WPI_RXON_AUTO | WPI_RXON_24GHZ);
4307 if (ic->ic_flags & IEEE80211_F_SHSLOT)
4308 sc->rxon.flags |= htole32(WPI_RXON_SHSLOT);
4309 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
4310 sc->rxon.flags |= htole32(WPI_RXON_SHPREAMBLE);
4311 if (IEEE80211_IS_CHAN_A(c)) {
4312 sc->rxon.cck_mask = 0;
4313 sc->rxon.ofdm_mask = 0x15;
4314 } else if (IEEE80211_IS_CHAN_B(c)) {
4315 sc->rxon.cck_mask = 0x03;
4316 sc->rxon.ofdm_mask = 0;
4318 /* Assume 802.11b/g. */
4319 sc->rxon.cck_mask = 0x0f;
4320 sc->rxon.ofdm_mask = 0x15;
4323 DPRINTF(sc, WPI_DEBUG_STATE, "rxon chan %d flags %x cck %x ofdm %x\n",
4324 sc->rxon.chan, sc->rxon.flags, sc->rxon.cck_mask,
4325 sc->rxon.ofdm_mask);
4327 if ((error = wpi_send_rxon(sc, 0, 1)) != 0) {
4328 device_printf(sc->sc_dev, "%s: could not send RXON\n",
4332 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
4334 WPI_RXON_UNLOCK(sc);
4340 wpi_config_beacon(struct wpi_vap *wvp)
4342 struct ieee80211vap *vap = &wvp->wv_vap;
4343 struct ieee80211com *ic = vap->iv_ic;
4344 struct ieee80211_beacon_offsets *bo = &vap->iv_bcn_off;
4345 struct wpi_buf *bcn = &wvp->wv_bcbuf;
4346 struct wpi_softc *sc = ic->ic_softc;
4347 struct wpi_cmd_beacon *cmd = (struct wpi_cmd_beacon *)&bcn->data;
4348 struct ieee80211_tim_ie *tie;
4353 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4355 WPI_VAP_LOCK_ASSERT(wvp);
4357 cmd->len = htole16(bcn->m->m_pkthdr.len);
4358 cmd->plcp = (ic->ic_curmode == IEEE80211_MODE_11A) ?
4359 wpi_ridx_to_plcp[WPI_RIDX_OFDM6] : wpi_ridx_to_plcp[WPI_RIDX_CCK1];
4361 /* XXX seems to be unused */
4362 if (*(bo->bo_tim) == IEEE80211_ELEMID_TIM) {
4363 tie = (struct ieee80211_tim_ie *) bo->bo_tim;
4364 ptr = mtod(bcn->m, uint8_t *);
4366 cmd->tim = htole16(bo->bo_tim - ptr);
4367 cmd->timsz = tie->tim_len;
4370 /* Necessary for recursion in ieee80211_beacon_update(). */
4372 bcn->m = m_dup(m, M_NOWAIT);
4373 if (bcn->m == NULL) {
4374 device_printf(sc->sc_dev,
4375 "%s: could not copy beacon frame\n", __func__);
4380 if ((error = wpi_cmd2(sc, bcn)) != 0) {
4381 device_printf(sc->sc_dev,
4382 "%s: could not update beacon frame, error %d", __func__,
4394 wpi_setup_beacon(struct wpi_softc *sc, struct ieee80211_node *ni)
4396 struct ieee80211vap *vap = ni->ni_vap;
4397 struct wpi_vap *wvp = WPI_VAP(vap);
4398 struct wpi_buf *bcn = &wvp->wv_bcbuf;
4402 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4404 if (ni->ni_chan == IEEE80211_CHAN_ANYC)
4407 m = ieee80211_beacon_alloc(ni);
4409 device_printf(sc->sc_dev,
4410 "%s: could not allocate beacon frame\n", __func__);
4420 error = wpi_config_beacon(wvp);
4421 WPI_VAP_UNLOCK(wvp);
4427 wpi_update_beacon(struct ieee80211vap *vap, int item)
4429 struct wpi_softc *sc = vap->iv_ic->ic_softc;
4430 struct wpi_vap *wvp = WPI_VAP(vap);
4431 struct wpi_buf *bcn = &wvp->wv_bcbuf;
4432 struct ieee80211_beacon_offsets *bo = &vap->iv_bcn_off;
4433 struct ieee80211_node *ni = vap->iv_bss;
4436 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
4439 if (bcn->m == NULL) {
4440 bcn->m = ieee80211_beacon_alloc(ni);
4441 if (bcn->m == NULL) {
4442 device_printf(sc->sc_dev,
4443 "%s: could not allocate beacon frame\n", __func__);
4445 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR,
4448 WPI_VAP_UNLOCK(wvp);
4452 WPI_VAP_UNLOCK(wvp);
4454 if (item == IEEE80211_BEACON_TIM)
4455 mcast = 1; /* TODO */
4457 setbit(bo->bo_flags, item);
4458 ieee80211_beacon_update(ni, bcn->m, mcast);
4461 wpi_config_beacon(wvp);
4462 WPI_VAP_UNLOCK(wvp);
4464 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
4468 wpi_newassoc(struct ieee80211_node *ni, int isnew)
4470 struct ieee80211vap *vap = ni->ni_vap;
4471 struct wpi_softc *sc = ni->ni_ic->ic_softc;
4472 struct wpi_node *wn = WPI_NODE(ni);
4477 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4479 if (vap->iv_opmode != IEEE80211_M_STA && wn->id == WPI_ID_UNDEFINED) {
4480 if ((error = wpi_add_ibss_node(sc, ni)) != 0) {
4481 device_printf(sc->sc_dev,
4482 "%s: could not add IBSS node, error %d\n",
4490 wpi_run(struct wpi_softc *sc, struct ieee80211vap *vap)
4492 struct ieee80211com *ic = vap->iv_ic;
4493 struct ieee80211_node *ni = vap->iv_bss;
4494 struct ieee80211_channel *c = ni->ni_chan;
4497 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
4499 if (vap->iv_opmode == IEEE80211_M_MONITOR) {
4500 /* Link LED blinks while monitoring. */
4501 wpi_set_led(sc, WPI_LED_LINK, 5, 5);
4505 /* XXX kernel panic workaround */
4506 if (c == IEEE80211_CHAN_ANYC) {
4507 device_printf(sc->sc_dev, "%s: incomplete configuration\n",
4512 if ((error = wpi_set_timing(sc, ni)) != 0) {
4513 device_printf(sc->sc_dev,
4514 "%s: could not set timing, error %d\n", __func__, error);
4518 /* Update adapter configuration. */
4520 IEEE80211_ADDR_COPY(sc->rxon.bssid, ni->ni_bssid);
4521 sc->rxon.associd = htole16(IEEE80211_NODE_AID(ni));
4522 sc->rxon.chan = ieee80211_chan2ieee(ic, c);
4523 sc->rxon.flags = htole32(WPI_RXON_TSF | WPI_RXON_CTS_TO_SELF);
4524 if (IEEE80211_IS_CHAN_2GHZ(c))
4525 sc->rxon.flags |= htole32(WPI_RXON_AUTO | WPI_RXON_24GHZ);
4526 if (ic->ic_flags & IEEE80211_F_SHSLOT)
4527 sc->rxon.flags |= htole32(WPI_RXON_SHSLOT);
4528 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
4529 sc->rxon.flags |= htole32(WPI_RXON_SHPREAMBLE);
4530 if (IEEE80211_IS_CHAN_A(c)) {
4531 sc->rxon.cck_mask = 0;
4532 sc->rxon.ofdm_mask = 0x15;
4533 } else if (IEEE80211_IS_CHAN_B(c)) {
4534 sc->rxon.cck_mask = 0x03;
4535 sc->rxon.ofdm_mask = 0;
4537 /* Assume 802.11b/g. */
4538 sc->rxon.cck_mask = 0x0f;
4539 sc->rxon.ofdm_mask = 0x15;
4541 sc->rxon.filter |= htole32(WPI_FILTER_BSS);
4543 DPRINTF(sc, WPI_DEBUG_STATE, "rxon chan %d flags %x\n",
4544 sc->rxon.chan, sc->rxon.flags);
4546 if ((error = wpi_send_rxon(sc, 0, 1)) != 0) {
4547 device_printf(sc->sc_dev, "%s: could not send RXON\n",
4552 /* Start periodic calibration timer. */
4553 callout_reset(&sc->calib_to, 60*hz, wpi_calib_timeout, sc);
4555 WPI_RXON_UNLOCK(sc);
4557 if (vap->iv_opmode == IEEE80211_M_IBSS ||
4558 vap->iv_opmode == IEEE80211_M_HOSTAP) {
4559 if ((error = wpi_setup_beacon(sc, ni)) != 0) {
4560 device_printf(sc->sc_dev,
4561 "%s: could not setup beacon, error %d\n", __func__,
4567 if (vap->iv_opmode == IEEE80211_M_STA) {
4570 error = wpi_add_sta_node(sc, ni);
4573 device_printf(sc->sc_dev,
4574 "%s: could not add BSS node, error %d\n", __func__,
4580 /* Link LED always on while associated. */
4581 wpi_set_led(sc, WPI_LED_LINK, 0, 1);
4583 /* Enable power-saving mode if requested by user. */
4584 if ((vap->iv_flags & IEEE80211_F_PMGTON) &&
4585 vap->iv_opmode != IEEE80211_M_IBSS)
4586 (void)wpi_set_pslevel(sc, 0, 3, 1);
4588 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
4594 wpi_load_key(struct ieee80211_node *ni, const struct ieee80211_key *k)
4596 const struct ieee80211_cipher *cip = k->wk_cipher;
4597 struct ieee80211vap *vap = ni->ni_vap;
4598 struct wpi_softc *sc = ni->ni_ic->ic_softc;
4599 struct wpi_node *wn = WPI_NODE(ni);
4600 struct wpi_node_info node;
4604 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4606 if (wpi_check_node_entry(sc, wn->id) == 0) {
4607 device_printf(sc->sc_dev, "%s: node does not exist\n",
4612 switch (cip->ic_cipher) {
4613 case IEEE80211_CIPHER_AES_CCM:
4614 kflags = WPI_KFLAG_CCMP;
4618 device_printf(sc->sc_dev, "%s: unknown cipher %d\n", __func__,
4623 kflags |= WPI_KFLAG_KID(k->wk_keyix);
4624 if (k->wk_flags & IEEE80211_KEY_GROUP)
4625 kflags |= WPI_KFLAG_MULTICAST;
4627 memset(&node, 0, sizeof node);
4629 node.control = WPI_NODE_UPDATE;
4630 node.flags = WPI_FLAG_KEY_SET;
4631 node.kflags = htole16(kflags);
4632 memcpy(node.key, k->wk_key, k->wk_keylen);
4634 DPRINTF(sc, WPI_DEBUG_KEY,
4635 "%s: setting %s key id %d for node %d (%s)\n", __func__,
4636 (kflags & WPI_KFLAG_MULTICAST) ? "group" : "ucast", k->wk_keyix,
4637 node.id, ether_sprintf(ni->ni_macaddr));
4639 error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 1);
4641 device_printf(sc->sc_dev, "can't update node info, error %d\n",
4646 if (!(kflags & WPI_KFLAG_MULTICAST) && &vap->iv_nw_keys[0] <= k &&
4647 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]) {
4648 kflags |= WPI_KFLAG_MULTICAST;
4649 node.kflags = htole16(kflags);
4658 wpi_load_key_cb(void *arg, struct ieee80211_node *ni)
4660 const struct ieee80211_key *k = arg;
4661 struct ieee80211vap *vap = ni->ni_vap;
4662 struct wpi_softc *sc = ni->ni_ic->ic_softc;
4663 struct wpi_node *wn = WPI_NODE(ni);
4666 if (vap->iv_bss == ni && wn->id == WPI_ID_UNDEFINED)
4670 error = wpi_load_key(ni, k);
4674 device_printf(sc->sc_dev, "%s: error while setting key\n",
4680 wpi_set_global_keys(struct ieee80211_node *ni)
4682 struct ieee80211vap *vap = ni->ni_vap;
4683 struct ieee80211_key *wk = &vap->iv_nw_keys[0];
4686 for (; wk < &vap->iv_nw_keys[IEEE80211_WEP_NKID] && error; wk++)
4687 if (wk->wk_keyix != IEEE80211_KEYIX_NONE)
4688 error = wpi_load_key(ni, wk);
4694 wpi_del_key(struct ieee80211_node *ni, const struct ieee80211_key *k)
4696 struct ieee80211vap *vap = ni->ni_vap;
4697 struct wpi_softc *sc = ni->ni_ic->ic_softc;
4698 struct wpi_node *wn = WPI_NODE(ni);
4699 struct wpi_node_info node;
4703 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4705 if (wpi_check_node_entry(sc, wn->id) == 0) {
4706 DPRINTF(sc, WPI_DEBUG_KEY, "%s: node was removed\n", __func__);
4707 return 1; /* Nothing to do. */
4710 kflags = WPI_KFLAG_KID(k->wk_keyix);
4711 if (k->wk_flags & IEEE80211_KEY_GROUP)
4712 kflags |= WPI_KFLAG_MULTICAST;
4714 memset(&node, 0, sizeof node);
4716 node.control = WPI_NODE_UPDATE;
4717 node.flags = WPI_FLAG_KEY_SET;
4718 node.kflags = htole16(kflags);
4720 DPRINTF(sc, WPI_DEBUG_KEY, "%s: deleting %s key %d for node %d (%s)\n",
4721 __func__, (kflags & WPI_KFLAG_MULTICAST) ? "group" : "ucast",
4722 k->wk_keyix, node.id, ether_sprintf(ni->ni_macaddr));
4724 error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 1);
4726 device_printf(sc->sc_dev, "can't update node info, error %d\n",
4731 if (!(kflags & WPI_KFLAG_MULTICAST) && &vap->iv_nw_keys[0] <= k &&
4732 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]) {
4733 kflags |= WPI_KFLAG_MULTICAST;
4734 node.kflags = htole16(kflags);
4743 wpi_del_key_cb(void *arg, struct ieee80211_node *ni)
4745 const struct ieee80211_key *k = arg;
4746 struct ieee80211vap *vap = ni->ni_vap;
4747 struct wpi_softc *sc = ni->ni_ic->ic_softc;
4748 struct wpi_node *wn = WPI_NODE(ni);
4751 if (vap->iv_bss == ni && wn->id == WPI_ID_UNDEFINED)
4755 error = wpi_del_key(ni, k);
4759 device_printf(sc->sc_dev, "%s: error while deleting key\n",
4765 wpi_process_key(struct ieee80211vap *vap, const struct ieee80211_key *k,
4768 struct ieee80211com *ic = vap->iv_ic;
4769 struct wpi_softc *sc = ic->ic_softc;
4770 struct wpi_vap *wvp = WPI_VAP(vap);
4771 struct ieee80211_node *ni;
4772 int error, ni_ref = 0;
4774 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4776 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) {
4781 if (!(k->wk_flags & IEEE80211_KEY_RECV)) {
4782 /* XMIT keys are handled in wpi_tx_data(). */
4786 /* Handle group keys. */
4787 if (&vap->iv_nw_keys[0] <= k &&
4788 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]) {
4791 wvp->wv_gtk |= WPI_VAP_KEY(k->wk_keyix);
4793 wvp->wv_gtk &= ~WPI_VAP_KEY(k->wk_keyix);
4796 if (vap->iv_state == IEEE80211_S_RUN) {
4797 ieee80211_iterate_nodes(&ic->ic_sta,
4798 set ? wpi_load_key_cb : wpi_del_key_cb,
4799 __DECONST(void *, k));
4805 switch (vap->iv_opmode) {
4806 case IEEE80211_M_STA:
4810 case IEEE80211_M_IBSS:
4811 case IEEE80211_M_AHDEMO:
4812 case IEEE80211_M_HOSTAP:
4813 ni = ieee80211_find_vap_node(&ic->ic_sta, vap, k->wk_macaddr);
4815 return 0; /* should not happen */
4821 device_printf(sc->sc_dev, "%s: unknown opmode %d\n", __func__,
4828 error = wpi_load_key(ni, k);
4830 error = wpi_del_key(ni, k);
4834 ieee80211_node_decref(ni);
4840 wpi_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k)
4842 return wpi_process_key(vap, k, 1);
4846 wpi_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k)
4848 return wpi_process_key(vap, k, 0);
4852 * This function is called after the runtime firmware notifies us of its
4853 * readiness (called in a process context).
4856 wpi_post_alive(struct wpi_softc *sc)
4860 /* Check (again) that the radio is not disabled. */
4861 if ((error = wpi_nic_lock(sc)) != 0)
4864 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4866 /* NB: Runtime firmware must be up and running. */
4867 if (!(wpi_prph_read(sc, WPI_APMG_RFKILL) & 1)) {
4868 device_printf(sc->sc_dev,
4869 "RF switch: radio disabled (%s)\n", __func__);
4871 return EPERM; /* :-) */
4875 /* Wait for thermal sensor to calibrate. */
4876 for (ntries = 0; ntries < 1000; ntries++) {
4877 if ((sc->temp = (int)WPI_READ(sc, WPI_UCODE_GP2)) != 0)
4882 if (ntries == 1000) {
4883 device_printf(sc->sc_dev,
4884 "timeout waiting for thermal sensor calibration\n");
4888 DPRINTF(sc, WPI_DEBUG_TEMP, "temperature %d\n", sc->temp);
4893 * The firmware boot code is small and is intended to be copied directly into
4894 * the NIC internal memory (no DMA transfer).
4897 wpi_load_bootcode(struct wpi_softc *sc, const uint8_t *ucode, uint32_t size)
4901 DPRINTF(sc, WPI_DEBUG_HW, "Loading microcode size 0x%x\n", size);
4903 size /= sizeof (uint32_t);
4905 if ((error = wpi_nic_lock(sc)) != 0)
4908 /* Copy microcode image into NIC memory. */
4909 wpi_prph_write_region_4(sc, WPI_BSM_SRAM_BASE,
4910 (const uint32_t *)ucode, size);
4912 wpi_prph_write(sc, WPI_BSM_WR_MEM_SRC, 0);
4913 wpi_prph_write(sc, WPI_BSM_WR_MEM_DST, WPI_FW_TEXT_BASE);
4914 wpi_prph_write(sc, WPI_BSM_WR_DWCOUNT, size);
4916 /* Start boot load now. */
4917 wpi_prph_write(sc, WPI_BSM_WR_CTRL, WPI_BSM_WR_CTRL_START);
4919 /* Wait for transfer to complete. */
4920 for (ntries = 0; ntries < 1000; ntries++) {
4921 uint32_t status = WPI_READ(sc, WPI_FH_TX_STATUS);
4922 DPRINTF(sc, WPI_DEBUG_HW,
4923 "firmware status=0x%x, val=0x%x, result=0x%x\n", status,
4924 WPI_FH_TX_STATUS_IDLE(6),
4925 status & WPI_FH_TX_STATUS_IDLE(6));
4926 if (status & WPI_FH_TX_STATUS_IDLE(6)) {
4927 DPRINTF(sc, WPI_DEBUG_HW,
4928 "Status Match! - ntries = %d\n", ntries);
4933 if (ntries == 1000) {
4934 device_printf(sc->sc_dev, "%s: could not load boot firmware\n",
4940 /* Enable boot after power up. */
4941 wpi_prph_write(sc, WPI_BSM_WR_CTRL, WPI_BSM_WR_CTRL_START_EN);
4948 wpi_load_firmware(struct wpi_softc *sc)
4950 struct wpi_fw_info *fw = &sc->fw;
4951 struct wpi_dma_info *dma = &sc->fw_dma;
4954 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4956 /* Copy initialization sections into pre-allocated DMA-safe memory. */
4957 memcpy(dma->vaddr, fw->init.data, fw->init.datasz);
4958 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
4959 memcpy(dma->vaddr + WPI_FW_DATA_MAXSZ, fw->init.text, fw->init.textsz);
4960 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
4962 /* Tell adapter where to find initialization sections. */
4963 if ((error = wpi_nic_lock(sc)) != 0)
4965 wpi_prph_write(sc, WPI_BSM_DRAM_DATA_ADDR, dma->paddr);
4966 wpi_prph_write(sc, WPI_BSM_DRAM_DATA_SIZE, fw->init.datasz);
4967 wpi_prph_write(sc, WPI_BSM_DRAM_TEXT_ADDR,
4968 dma->paddr + WPI_FW_DATA_MAXSZ);
4969 wpi_prph_write(sc, WPI_BSM_DRAM_TEXT_SIZE, fw->init.textsz);
4972 /* Load firmware boot code. */
4973 error = wpi_load_bootcode(sc, fw->boot.text, fw->boot.textsz);
4975 device_printf(sc->sc_dev, "%s: could not load boot firmware\n",
4980 /* Now press "execute". */
4981 WPI_WRITE(sc, WPI_RESET, 0);
4983 /* Wait at most one second for first alive notification. */
4984 if ((error = mtx_sleep(sc, &sc->sc_mtx, PCATCH, "wpiinit", hz)) != 0) {
4985 device_printf(sc->sc_dev,
4986 "%s: timeout waiting for adapter to initialize, error %d\n",
4991 /* Copy runtime sections into pre-allocated DMA-safe memory. */
4992 memcpy(dma->vaddr, fw->main.data, fw->main.datasz);
4993 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
4994 memcpy(dma->vaddr + WPI_FW_DATA_MAXSZ, fw->main.text, fw->main.textsz);
4995 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
4997 /* Tell adapter where to find runtime sections. */
4998 if ((error = wpi_nic_lock(sc)) != 0)
5000 wpi_prph_write(sc, WPI_BSM_DRAM_DATA_ADDR, dma->paddr);
5001 wpi_prph_write(sc, WPI_BSM_DRAM_DATA_SIZE, fw->main.datasz);
5002 wpi_prph_write(sc, WPI_BSM_DRAM_TEXT_ADDR,
5003 dma->paddr + WPI_FW_DATA_MAXSZ);
5004 wpi_prph_write(sc, WPI_BSM_DRAM_TEXT_SIZE,
5005 WPI_FW_UPDATED | fw->main.textsz);
5012 wpi_read_firmware(struct wpi_softc *sc)
5014 const struct firmware *fp;
5015 struct wpi_fw_info *fw = &sc->fw;
5016 const struct wpi_firmware_hdr *hdr;
5019 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
5021 DPRINTF(sc, WPI_DEBUG_FIRMWARE,
5022 "Attempting Loading Firmware from %s module\n", WPI_FW_NAME);
5025 fp = firmware_get(WPI_FW_NAME);
5029 device_printf(sc->sc_dev,
5030 "could not load firmware image '%s'\n", WPI_FW_NAME);
5036 if (fp->datasize < sizeof (struct wpi_firmware_hdr)) {
5037 device_printf(sc->sc_dev,
5038 "firmware file too short: %zu bytes\n", fp->datasize);
5043 fw->size = fp->datasize;
5044 fw->data = (const uint8_t *)fp->data;
5046 /* Extract firmware header information. */
5047 hdr = (const struct wpi_firmware_hdr *)fw->data;
5049 /* | RUNTIME FIRMWARE | INIT FIRMWARE | BOOT FW |
5050 |HDR|<--TEXT-->|<--DATA-->|<--TEXT-->|<--DATA-->|<--TEXT-->| */
5052 fw->main.textsz = le32toh(hdr->rtextsz);
5053 fw->main.datasz = le32toh(hdr->rdatasz);
5054 fw->init.textsz = le32toh(hdr->itextsz);
5055 fw->init.datasz = le32toh(hdr->idatasz);
5056 fw->boot.textsz = le32toh(hdr->btextsz);
5057 fw->boot.datasz = 0;
5059 /* Sanity-check firmware header. */
5060 if (fw->main.textsz > WPI_FW_TEXT_MAXSZ ||
5061 fw->main.datasz > WPI_FW_DATA_MAXSZ ||
5062 fw->init.textsz > WPI_FW_TEXT_MAXSZ ||
5063 fw->init.datasz > WPI_FW_DATA_MAXSZ ||
5064 fw->boot.textsz > WPI_FW_BOOT_TEXT_MAXSZ ||
5065 (fw->boot.textsz & 3) != 0) {
5066 device_printf(sc->sc_dev, "invalid firmware header\n");
5071 /* Check that all firmware sections fit. */
5072 if (fw->size < sizeof (*hdr) + fw->main.textsz + fw->main.datasz +
5073 fw->init.textsz + fw->init.datasz + fw->boot.textsz) {
5074 device_printf(sc->sc_dev,
5075 "firmware file too short: %zu bytes\n", fw->size);
5080 /* Get pointers to firmware sections. */
5081 fw->main.text = (const uint8_t *)(hdr + 1);
5082 fw->main.data = fw->main.text + fw->main.textsz;
5083 fw->init.text = fw->main.data + fw->main.datasz;
5084 fw->init.data = fw->init.text + fw->init.textsz;
5085 fw->boot.text = fw->init.data + fw->init.datasz;
5087 DPRINTF(sc, WPI_DEBUG_FIRMWARE,
5088 "Firmware Version: Major %d, Minor %d, Driver %d, \n"
5089 "runtime (text: %u, data: %u) init (text: %u, data %u) "
5090 "boot (text %u)\n", hdr->major, hdr->minor, le32toh(hdr->driver),
5091 fw->main.textsz, fw->main.datasz,
5092 fw->init.textsz, fw->init.datasz, fw->boot.textsz);
5094 DPRINTF(sc, WPI_DEBUG_FIRMWARE, "fw->main.text %p\n", fw->main.text);
5095 DPRINTF(sc, WPI_DEBUG_FIRMWARE, "fw->main.data %p\n", fw->main.data);
5096 DPRINTF(sc, WPI_DEBUG_FIRMWARE, "fw->init.text %p\n", fw->init.text);
5097 DPRINTF(sc, WPI_DEBUG_FIRMWARE, "fw->init.data %p\n", fw->init.data);
5098 DPRINTF(sc, WPI_DEBUG_FIRMWARE, "fw->boot.text %p\n", fw->boot.text);
5102 fail: wpi_unload_firmware(sc);
5107 * Free the referenced firmware image
5110 wpi_unload_firmware(struct wpi_softc *sc)
5112 if (sc->fw_fp != NULL) {
5113 firmware_put(sc->fw_fp, FIRMWARE_UNLOAD);
5119 wpi_clock_wait(struct wpi_softc *sc)
5123 /* Set "initialization complete" bit. */
5124 WPI_SETBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_INIT_DONE);
5126 /* Wait for clock stabilization. */
5127 for (ntries = 0; ntries < 2500; ntries++) {
5128 if (WPI_READ(sc, WPI_GP_CNTRL) & WPI_GP_CNTRL_MAC_CLOCK_READY)
5132 device_printf(sc->sc_dev,
5133 "%s: timeout waiting for clock stabilization\n", __func__);
5139 wpi_apm_init(struct wpi_softc *sc)
5144 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
5146 /* Disable L0s exit timer (NMI bug workaround). */
5147 WPI_SETBITS(sc, WPI_GIO_CHICKEN, WPI_GIO_CHICKEN_DIS_L0S_TIMER);
5148 /* Don't wait for ICH L0s (ICH bug workaround). */
5149 WPI_SETBITS(sc, WPI_GIO_CHICKEN, WPI_GIO_CHICKEN_L1A_NO_L0S_RX);
5151 /* Set FH wait threshold to max (HW bug under stress workaround). */
5152 WPI_SETBITS(sc, WPI_DBG_HPET_MEM, 0xffff0000);
5154 /* Retrieve PCIe Active State Power Management (ASPM). */
5155 reg = pci_read_config(sc->sc_dev, sc->sc_cap_off + PCIER_LINK_CTL, 1);
5156 /* Workaround for HW instability in PCIe L0->L0s->L1 transition. */
5157 if (reg & PCIEM_LINK_CTL_ASPMC_L1) /* L1 Entry enabled. */
5158 WPI_SETBITS(sc, WPI_GIO, WPI_GIO_L0S_ENA);
5160 WPI_CLRBITS(sc, WPI_GIO, WPI_GIO_L0S_ENA);
5162 WPI_SETBITS(sc, WPI_ANA_PLL, WPI_ANA_PLL_INIT);
5164 /* Wait for clock stabilization before accessing prph. */
5165 if ((error = wpi_clock_wait(sc)) != 0)
5168 if ((error = wpi_nic_lock(sc)) != 0)
5171 wpi_prph_write(sc, WPI_APMG_CLK_DIS, 0x00000400);
5172 wpi_prph_clrbits(sc, WPI_APMG_PS, 0x00000200);
5174 /* Enable DMA and BSM (Bootstrap State Machine). */
5175 wpi_prph_write(sc, WPI_APMG_CLK_EN,
5176 WPI_APMG_CLK_CTRL_DMA_CLK_RQT | WPI_APMG_CLK_CTRL_BSM_CLK_RQT);
5178 /* Disable L1-Active. */
5179 wpi_prph_setbits(sc, WPI_APMG_PCI_STT, WPI_APMG_PCI_STT_L1A_DIS);
5186 wpi_apm_stop_master(struct wpi_softc *sc)
5190 /* Stop busmaster DMA activity. */
5191 WPI_SETBITS(sc, WPI_RESET, WPI_RESET_STOP_MASTER);
5193 if ((WPI_READ(sc, WPI_GP_CNTRL) & WPI_GP_CNTRL_PS_MASK) ==
5194 WPI_GP_CNTRL_MAC_PS)
5195 return; /* Already asleep. */
5197 for (ntries = 0; ntries < 100; ntries++) {
5198 if (WPI_READ(sc, WPI_RESET) & WPI_RESET_MASTER_DISABLED)
5202 device_printf(sc->sc_dev, "%s: timeout waiting for master\n",
5207 wpi_apm_stop(struct wpi_softc *sc)
5209 wpi_apm_stop_master(sc);
5211 /* Reset the entire device. */
5212 WPI_SETBITS(sc, WPI_RESET, WPI_RESET_SW);
5214 /* Clear "initialization complete" bit. */
5215 WPI_CLRBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_INIT_DONE);
5219 wpi_nic_config(struct wpi_softc *sc)
5223 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
5225 /* voodoo from the Linux "driver".. */
5226 rev = pci_read_config(sc->sc_dev, PCIR_REVID, 1);
5227 if ((rev & 0xc0) == 0x40)
5228 WPI_SETBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_ALM_MB);
5229 else if (!(rev & 0x80))
5230 WPI_SETBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_ALM_MM);
5232 if (sc->cap == 0x80)
5233 WPI_SETBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_SKU_MRC);
5235 if ((sc->rev & 0xf0) == 0xd0)
5236 WPI_SETBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_REV_D);
5238 WPI_CLRBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_REV_D);
5241 WPI_SETBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_TYPE_B);
5245 wpi_hw_init(struct wpi_softc *sc)
5250 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
5252 /* Clear pending interrupts. */
5253 WPI_WRITE(sc, WPI_INT, 0xffffffff);
5255 if ((error = wpi_apm_init(sc)) != 0) {
5256 device_printf(sc->sc_dev,
5257 "%s: could not power ON adapter, error %d\n", __func__,
5262 /* Select VMAIN power source. */
5263 if ((error = wpi_nic_lock(sc)) != 0)
5265 wpi_prph_clrbits(sc, WPI_APMG_PS, WPI_APMG_PS_PWR_SRC_MASK);
5267 /* Spin until VMAIN gets selected. */
5268 for (ntries = 0; ntries < 5000; ntries++) {
5269 if (WPI_READ(sc, WPI_GPIO_IN) & WPI_GPIO_IN_VMAIN)
5273 if (ntries == 5000) {
5274 device_printf(sc->sc_dev, "timeout selecting power source\n");
5278 /* Perform adapter initialization. */
5281 /* Initialize RX ring. */
5282 if ((error = wpi_nic_lock(sc)) != 0)
5284 /* Set physical address of RX ring. */
5285 WPI_WRITE(sc, WPI_FH_RX_BASE, sc->rxq.desc_dma.paddr);
5286 /* Set physical address of RX read pointer. */
5287 WPI_WRITE(sc, WPI_FH_RX_RPTR_ADDR, sc->shared_dma.paddr +
5288 offsetof(struct wpi_shared, next));
5289 WPI_WRITE(sc, WPI_FH_RX_WPTR, 0);
5291 WPI_WRITE(sc, WPI_FH_RX_CONFIG,
5292 WPI_FH_RX_CONFIG_DMA_ENA |
5293 WPI_FH_RX_CONFIG_RDRBD_ENA |
5294 WPI_FH_RX_CONFIG_WRSTATUS_ENA |
5295 WPI_FH_RX_CONFIG_MAXFRAG |
5296 WPI_FH_RX_CONFIG_NRBD(WPI_RX_RING_COUNT_LOG) |
5297 WPI_FH_RX_CONFIG_IRQ_DST_HOST |
5298 WPI_FH_RX_CONFIG_IRQ_TIMEOUT(1));
5299 (void)WPI_READ(sc, WPI_FH_RSSR_TBL); /* barrier */
5301 WPI_WRITE(sc, WPI_FH_RX_WPTR, (WPI_RX_RING_COUNT - 1) & ~7);
5303 /* Initialize TX rings. */
5304 if ((error = wpi_nic_lock(sc)) != 0)
5306 wpi_prph_write(sc, WPI_ALM_SCHED_MODE, 2); /* bypass mode */
5307 wpi_prph_write(sc, WPI_ALM_SCHED_ARASTAT, 1); /* enable RA0 */
5308 /* Enable all 6 TX rings. */
5309 wpi_prph_write(sc, WPI_ALM_SCHED_TXFACT, 0x3f);
5310 wpi_prph_write(sc, WPI_ALM_SCHED_SBYPASS_MODE1, 0x10000);
5311 wpi_prph_write(sc, WPI_ALM_SCHED_SBYPASS_MODE2, 0x30002);
5312 wpi_prph_write(sc, WPI_ALM_SCHED_TXF4MF, 4);
5313 wpi_prph_write(sc, WPI_ALM_SCHED_TXF5MF, 5);
5314 /* Set physical address of TX rings. */
5315 WPI_WRITE(sc, WPI_FH_TX_BASE, sc->shared_dma.paddr);
5316 WPI_WRITE(sc, WPI_FH_MSG_CONFIG, 0xffff05a5);
5318 /* Enable all DMA channels. */
5319 for (chnl = 0; chnl < WPI_NDMACHNLS; chnl++) {
5320 WPI_WRITE(sc, WPI_FH_CBBC_CTRL(chnl), 0);
5321 WPI_WRITE(sc, WPI_FH_CBBC_BASE(chnl), 0);
5322 WPI_WRITE(sc, WPI_FH_TX_CONFIG(chnl), 0x80200008);
5325 (void)WPI_READ(sc, WPI_FH_TX_BASE); /* barrier */
5327 /* Clear "radio off" and "commands blocked" bits. */
5328 WPI_WRITE(sc, WPI_UCODE_GP1_CLR, WPI_UCODE_GP1_RFKILL);
5329 WPI_WRITE(sc, WPI_UCODE_GP1_CLR, WPI_UCODE_GP1_CMD_BLOCKED);
5331 /* Clear pending interrupts. */
5332 WPI_WRITE(sc, WPI_INT, 0xffffffff);
5333 /* Enable interrupts. */
5334 WPI_WRITE(sc, WPI_INT_MASK, WPI_INT_MASK_DEF);
5336 /* _Really_ make sure "radio off" bit is cleared! */
5337 WPI_WRITE(sc, WPI_UCODE_GP1_CLR, WPI_UCODE_GP1_RFKILL);
5338 WPI_WRITE(sc, WPI_UCODE_GP1_CLR, WPI_UCODE_GP1_RFKILL);
5340 if ((error = wpi_load_firmware(sc)) != 0) {
5341 device_printf(sc->sc_dev,
5342 "%s: could not load firmware, error %d\n", __func__,
5346 /* Wait at most one second for firmware alive notification. */
5347 if ((error = mtx_sleep(sc, &sc->sc_mtx, PCATCH, "wpiinit", hz)) != 0) {
5348 device_printf(sc->sc_dev,
5349 "%s: timeout waiting for adapter to initialize, error %d\n",
5354 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
5356 /* Do post-firmware initialization. */
5357 return wpi_post_alive(sc);
5361 wpi_hw_stop(struct wpi_softc *sc)
5366 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
5368 if (WPI_READ(sc, WPI_UCODE_GP1) & WPI_UCODE_GP1_MAC_SLEEP)
5371 WPI_WRITE(sc, WPI_RESET, WPI_RESET_NEVO);
5373 /* Disable interrupts. */
5374 WPI_WRITE(sc, WPI_INT_MASK, 0);
5375 WPI_WRITE(sc, WPI_INT, 0xffffffff);
5376 WPI_WRITE(sc, WPI_FH_INT, 0xffffffff);
5378 /* Make sure we no longer hold the NIC lock. */
5381 if (wpi_nic_lock(sc) == 0) {
5382 /* Stop TX scheduler. */
5383 wpi_prph_write(sc, WPI_ALM_SCHED_MODE, 0);
5384 wpi_prph_write(sc, WPI_ALM_SCHED_TXFACT, 0);
5386 /* Stop all DMA channels. */
5387 for (chnl = 0; chnl < WPI_NDMACHNLS; chnl++) {
5388 WPI_WRITE(sc, WPI_FH_TX_CONFIG(chnl), 0);
5389 for (ntries = 0; ntries < 200; ntries++) {
5390 if (WPI_READ(sc, WPI_FH_TX_STATUS) &
5391 WPI_FH_TX_STATUS_IDLE(chnl))
5400 wpi_reset_rx_ring(sc);
5402 /* Reset all TX rings. */
5403 for (qid = 0; qid < WPI_DRV_NTXQUEUES; qid++)
5404 wpi_reset_tx_ring(sc, &sc->txq[qid]);
5406 if (wpi_nic_lock(sc) == 0) {
5407 wpi_prph_write(sc, WPI_APMG_CLK_DIS,
5408 WPI_APMG_CLK_CTRL_DMA_CLK_RQT);
5412 /* Power OFF adapter. */
5417 wpi_radio_on(void *arg0, int pending)
5419 struct wpi_softc *sc = arg0;
5420 struct ieee80211com *ic = &sc->sc_ic;
5421 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
5423 device_printf(sc->sc_dev, "RF switch: radio enabled\n");
5426 callout_stop(&sc->watchdog_rfkill);
5430 ieee80211_init(vap);
5434 wpi_radio_off(void *arg0, int pending)
5436 struct wpi_softc *sc = arg0;
5437 struct ieee80211com *ic = &sc->sc_ic;
5438 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
5440 device_printf(sc->sc_dev, "RF switch: radio disabled\n");
5442 ieee80211_notify_radio(ic, 0);
5445 ieee80211_stop(vap);
5448 callout_reset(&sc->watchdog_rfkill, hz, wpi_watchdog_rfkill, sc);
5453 wpi_init(struct wpi_softc *sc)
5459 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
5461 if (sc->sc_running != 0)
5464 /* Check that the radio is not disabled by hardware switch. */
5465 if (!(WPI_READ(sc, WPI_GP_CNTRL) & WPI_GP_CNTRL_RFKILL)) {
5466 device_printf(sc->sc_dev,
5467 "RF switch: radio disabled (%s)\n", __func__);
5468 callout_reset(&sc->watchdog_rfkill, hz, wpi_watchdog_rfkill,
5470 error = EINPROGRESS;
5474 /* Read firmware images from the filesystem. */
5475 if ((error = wpi_read_firmware(sc)) != 0) {
5476 device_printf(sc->sc_dev,
5477 "%s: could not read firmware, error %d\n", __func__,
5484 /* Initialize hardware and upload firmware. */
5485 error = wpi_hw_init(sc);
5486 wpi_unload_firmware(sc);
5488 device_printf(sc->sc_dev,
5489 "%s: could not initialize hardware, error %d\n", __func__,
5494 /* Configure adapter now that it is ready. */
5495 if ((error = wpi_config(sc)) != 0) {
5496 device_printf(sc->sc_dev,
5497 "%s: could not configure device, error %d\n", __func__,
5502 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
5508 fail: wpi_stop_locked(sc);
5510 end: DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
5517 wpi_stop_locked(struct wpi_softc *sc)
5520 WPI_LOCK_ASSERT(sc);
5522 if (sc->sc_running == 0)
5531 WPI_TXQ_STATE_LOCK(sc);
5532 callout_stop(&sc->tx_timeout);
5533 WPI_TXQ_STATE_UNLOCK(sc);
5536 callout_stop(&sc->scan_timeout);
5537 callout_stop(&sc->calib_to);
5538 WPI_RXON_UNLOCK(sc);
5540 /* Power OFF hardware. */
5545 wpi_stop(struct wpi_softc *sc)
5548 wpi_stop_locked(sc);
5553 * Callback from net80211 to start a scan.
5556 wpi_scan_start(struct ieee80211com *ic)
5558 struct wpi_softc *sc = ic->ic_softc;
5560 wpi_set_led(sc, WPI_LED_LINK, 20, 2);
5564 * Callback from net80211 to terminate a scan.
5567 wpi_scan_end(struct ieee80211com *ic)
5569 struct wpi_softc *sc = ic->ic_softc;
5570 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
5572 if (vap->iv_state == IEEE80211_S_RUN)
5573 wpi_set_led(sc, WPI_LED_LINK, 0, 1);
5577 * Called by the net80211 framework to indicate to the driver
5578 * that the channel should be changed
5581 wpi_set_channel(struct ieee80211com *ic)
5583 const struct ieee80211_channel *c = ic->ic_curchan;
5584 struct wpi_softc *sc = ic->ic_softc;
5587 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
5590 sc->sc_rxtap.wr_chan_freq = htole16(c->ic_freq);
5591 sc->sc_rxtap.wr_chan_flags = htole16(c->ic_flags);
5594 sc->sc_txtap.wt_chan_freq = htole16(c->ic_freq);
5595 sc->sc_txtap.wt_chan_flags = htole16(c->ic_flags);
5599 * Only need to set the channel in Monitor mode. AP scanning and auth
5600 * are already taken care of by their respective firmware commands.
5602 if (ic->ic_opmode == IEEE80211_M_MONITOR) {
5604 sc->rxon.chan = ieee80211_chan2ieee(ic, c);
5605 if (IEEE80211_IS_CHAN_2GHZ(c)) {
5606 sc->rxon.flags |= htole32(WPI_RXON_AUTO |
5609 sc->rxon.flags &= ~htole32(WPI_RXON_AUTO |
5612 if ((error = wpi_send_rxon(sc, 0, 1)) != 0)
5613 device_printf(sc->sc_dev,
5614 "%s: error %d setting channel\n", __func__,
5616 WPI_RXON_UNLOCK(sc);
5621 * Called by net80211 to indicate that we need to scan the current
5622 * channel. The channel is previously be set via the wpi_set_channel
5626 wpi_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)
5628 struct ieee80211vap *vap = ss->ss_vap;
5629 struct ieee80211com *ic = vap->iv_ic;
5630 struct wpi_softc *sc = ic->ic_softc;
5634 error = wpi_scan(sc, ic->ic_curchan);
5635 WPI_RXON_UNLOCK(sc);
5637 ieee80211_cancel_scan(vap);
5641 * Called by the net80211 framework to indicate
5642 * the minimum dwell time has been met, terminate the scan.
5643 * We don't actually terminate the scan as the firmware will notify
5644 * us when it's finished and we have no way to interrupt it.
5647 wpi_scan_mindwell(struct ieee80211_scan_state *ss)
5649 /* NB: don't try to abort scan; wait for firmware to finish */