2 * Copyright (c) 2006,2007
3 * Damien Bergamini <damien.bergamini@free.fr>
4 * Benjamin Close <Benjamin.Close@clearchain.com>
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19 #include <sys/cdefs.h>
20 __FBSDID("$FreeBSD$");
23 * Driver for Intel PRO/Wireless 3945ABG 802.11 network adapters.
25 * The 3945ABG network adapter doesn't use traditional hardware as
26 * many other adaptors do. Instead at run time the eeprom is set into a known
27 * state and told to load boot firmware. The boot firmware loads an init and a
28 * main binary firmware image into SRAM on the card via DMA.
29 * Once the firmware is loaded, the driver/hw then
30 * communicate by way of circular dma rings via the SRAM to the firmware.
32 * There is 6 memory rings. 1 command ring, 1 rx data ring & 4 tx data rings.
33 * The 4 tx data rings allow for prioritization QoS.
35 * The rx data ring consists of 32 dma buffers. Two registers are used to
36 * indicate where in the ring the driver and the firmware are up to. The
37 * driver sets the initial read index (reg1) and the initial write index (reg2),
38 * the firmware updates the read index (reg1) on rx of a packet and fires an
39 * interrupt. The driver then processes the buffers starting at reg1 indicating
40 * to the firmware which buffers have been accessed by updating reg2. At the
41 * same time allocating new memory for the processed buffer.
43 * A similar thing happens with the tx rings. The difference is the firmware
44 * stop processing buffers once the queue is full and until confirmation
45 * of a successful transmition (tx_done) has occurred.
47 * The command ring operates in the same manner as the tx queues.
49 * All communication direct to the card (ie eeprom) is classed as Stage1
52 * All communication via the firmware to the card is classed as State2.
53 * The firmware consists of 2 parts. A bootstrap firmware and a runtime
54 * firmware. The bootstrap firmware and runtime firmware are loaded
55 * from host memory via dma to the card then told to execute. From this point
56 * on the majority of communications between the driver and the card goes
63 #include <sys/param.h>
64 #include <sys/sysctl.h>
65 #include <sys/sockio.h>
67 #include <sys/kernel.h>
68 #include <sys/socket.h>
69 #include <sys/systm.h>
70 #include <sys/malloc.h>
71 #include <sys/queue.h>
72 #include <sys/taskqueue.h>
73 #include <sys/module.h>
75 #include <sys/endian.h>
76 #include <sys/linker.h>
77 #include <sys/firmware.h>
79 #include <machine/bus.h>
80 #include <machine/resource.h>
83 #include <dev/pci/pcireg.h>
84 #include <dev/pci/pcivar.h>
88 #include <net/if_var.h>
89 #include <net/if_arp.h>
90 #include <net/ethernet.h>
91 #include <net/if_dl.h>
92 #include <net/if_media.h>
93 #include <net/if_types.h>
95 #include <netinet/in.h>
96 #include <netinet/in_systm.h>
97 #include <netinet/in_var.h>
98 #include <netinet/if_ether.h>
99 #include <netinet/ip.h>
101 #include <net80211/ieee80211_var.h>
102 #include <net80211/ieee80211_radiotap.h>
103 #include <net80211/ieee80211_regdomain.h>
104 #include <net80211/ieee80211_ratectl.h>
106 #include <dev/wpi/if_wpireg.h>
107 #include <dev/wpi/if_wpivar.h>
108 #include <dev/wpi/if_wpi_debug.h>
117 static const struct wpi_ident wpi_ident_table[] = {
118 /* The below entries support ABG regardless of the subid */
119 { 0x8086, 0x4222, 0x0, "Intel(R) PRO/Wireless 3945ABG" },
120 { 0x8086, 0x4227, 0x0, "Intel(R) PRO/Wireless 3945ABG" },
121 /* The below entries only support BG */
122 { 0x8086, 0x4222, 0x1005, "Intel(R) PRO/Wireless 3945BG" },
123 { 0x8086, 0x4222, 0x1034, "Intel(R) PRO/Wireless 3945BG" },
124 { 0x8086, 0x4227, 0x1014, "Intel(R) PRO/Wireless 3945BG" },
125 { 0x8086, 0x4222, 0x1044, "Intel(R) PRO/Wireless 3945BG" },
129 static int wpi_probe(device_t);
130 static int wpi_attach(device_t);
131 static void wpi_radiotap_attach(struct wpi_softc *);
132 static void wpi_sysctlattach(struct wpi_softc *);
133 static void wpi_init_beacon(struct wpi_vap *);
134 static struct ieee80211vap *wpi_vap_create(struct ieee80211com *,
135 const char [IFNAMSIZ], int, enum ieee80211_opmode, int,
136 const uint8_t [IEEE80211_ADDR_LEN],
137 const uint8_t [IEEE80211_ADDR_LEN]);
138 static void wpi_vap_delete(struct ieee80211vap *);
139 static int wpi_detach(device_t);
140 static int wpi_shutdown(device_t);
141 static int wpi_suspend(device_t);
142 static int wpi_resume(device_t);
143 static int wpi_nic_lock(struct wpi_softc *);
144 static int wpi_read_prom_data(struct wpi_softc *, uint32_t, void *, int);
145 static void wpi_dma_map_addr(void *, bus_dma_segment_t *, int, int);
146 static int wpi_dma_contig_alloc(struct wpi_softc *, struct wpi_dma_info *,
147 void **, bus_size_t, bus_size_t);
148 static void wpi_dma_contig_free(struct wpi_dma_info *);
149 static int wpi_alloc_shared(struct wpi_softc *);
150 static void wpi_free_shared(struct wpi_softc *);
151 static int wpi_alloc_fwmem(struct wpi_softc *);
152 static void wpi_free_fwmem(struct wpi_softc *);
153 static int wpi_alloc_rx_ring(struct wpi_softc *);
154 static void wpi_update_rx_ring(struct wpi_softc *);
155 static void wpi_update_rx_ring_ps(struct wpi_softc *);
156 static void wpi_reset_rx_ring(struct wpi_softc *);
157 static void wpi_free_rx_ring(struct wpi_softc *);
158 static int wpi_alloc_tx_ring(struct wpi_softc *, struct wpi_tx_ring *,
160 static void wpi_update_tx_ring(struct wpi_softc *, struct wpi_tx_ring *);
161 static void wpi_update_tx_ring_ps(struct wpi_softc *,
162 struct wpi_tx_ring *);
163 static void wpi_reset_tx_ring(struct wpi_softc *, struct wpi_tx_ring *);
164 static void wpi_free_tx_ring(struct wpi_softc *, struct wpi_tx_ring *);
165 static int wpi_read_eeprom(struct wpi_softc *,
166 uint8_t macaddr[IEEE80211_ADDR_LEN]);
167 static uint32_t wpi_eeprom_channel_flags(struct wpi_eeprom_chan *);
168 static void wpi_read_eeprom_band(struct wpi_softc *, int);
169 static int wpi_read_eeprom_channels(struct wpi_softc *, int);
170 static struct wpi_eeprom_chan *wpi_find_eeprom_channel(struct wpi_softc *,
171 struct ieee80211_channel *);
172 static int wpi_setregdomain(struct ieee80211com *,
173 struct ieee80211_regdomain *, int,
174 struct ieee80211_channel[]);
175 static int wpi_read_eeprom_group(struct wpi_softc *, int);
176 static int wpi_add_node_entry_adhoc(struct wpi_softc *);
177 static struct ieee80211_node *wpi_node_alloc(struct ieee80211vap *,
178 const uint8_t mac[IEEE80211_ADDR_LEN]);
179 static void wpi_node_free(struct ieee80211_node *);
180 static void wpi_recv_mgmt(struct ieee80211_node *, struct mbuf *, int,
181 const struct ieee80211_rx_stats *,
183 static void wpi_restore_node(void *, struct ieee80211_node *);
184 static void wpi_restore_node_table(struct wpi_softc *, struct wpi_vap *);
185 static int wpi_newstate(struct ieee80211vap *, enum ieee80211_state, int);
186 static void wpi_calib_timeout(void *);
187 static void wpi_rx_done(struct wpi_softc *, struct wpi_rx_desc *,
188 struct wpi_rx_data *);
189 static void wpi_rx_statistics(struct wpi_softc *, struct wpi_rx_desc *,
190 struct wpi_rx_data *);
191 static void wpi_tx_done(struct wpi_softc *, struct wpi_rx_desc *);
192 static void wpi_cmd_done(struct wpi_softc *, struct wpi_rx_desc *);
193 static void wpi_notif_intr(struct wpi_softc *);
194 static void wpi_wakeup_intr(struct wpi_softc *);
196 static void wpi_debug_registers(struct wpi_softc *);
198 static void wpi_fatal_intr(struct wpi_softc *);
199 static void wpi_intr(void *);
200 static int wpi_cmd2(struct wpi_softc *, struct wpi_buf *);
201 static int wpi_tx_data(struct wpi_softc *, struct mbuf *,
202 struct ieee80211_node *);
203 static int wpi_tx_data_raw(struct wpi_softc *, struct mbuf *,
204 struct ieee80211_node *,
205 const struct ieee80211_bpf_params *);
206 static int wpi_raw_xmit(struct ieee80211_node *, struct mbuf *,
207 const struct ieee80211_bpf_params *);
208 static void wpi_start(struct ifnet *);
209 static void wpi_start_task(void *, int);
210 static void wpi_watchdog_rfkill(void *);
211 static void wpi_scan_timeout(void *);
212 static void wpi_tx_timeout(void *);
213 static int wpi_ioctl(struct ifnet *, u_long, caddr_t);
214 static int wpi_cmd(struct wpi_softc *, int, const void *, size_t, int);
215 static int wpi_mrr_setup(struct wpi_softc *);
216 static int wpi_add_node(struct wpi_softc *, struct ieee80211_node *);
217 static int wpi_add_broadcast_node(struct wpi_softc *, int);
218 static int wpi_add_ibss_node(struct wpi_softc *, struct ieee80211_node *);
219 static void wpi_del_node(struct wpi_softc *, struct ieee80211_node *);
220 static int wpi_updateedca(struct ieee80211com *);
221 static void wpi_set_promisc(struct wpi_softc *);
222 static void wpi_update_promisc(struct ieee80211com *);
223 static void wpi_update_mcast(struct ieee80211com *);
224 static void wpi_set_led(struct wpi_softc *, uint8_t, uint8_t, uint8_t);
225 static int wpi_set_timing(struct wpi_softc *, struct ieee80211_node *);
226 static void wpi_power_calibration(struct wpi_softc *);
227 static int wpi_set_txpower(struct wpi_softc *, int);
228 static int wpi_get_power_index(struct wpi_softc *,
229 struct wpi_power_group *, uint8_t, int, int);
230 static int wpi_set_pslevel(struct wpi_softc *, uint8_t, int, int);
231 static int wpi_send_btcoex(struct wpi_softc *);
232 static int wpi_send_rxon(struct wpi_softc *, int, int);
233 static int wpi_config(struct wpi_softc *);
234 static uint16_t wpi_get_active_dwell_time(struct wpi_softc *,
235 struct ieee80211_channel *, uint8_t);
236 static uint16_t wpi_limit_dwell(struct wpi_softc *, uint16_t);
237 static uint16_t wpi_get_passive_dwell_time(struct wpi_softc *,
238 struct ieee80211_channel *);
239 static uint32_t wpi_get_scan_pause_time(uint32_t, uint16_t);
240 static int wpi_scan(struct wpi_softc *, struct ieee80211_channel *);
241 static int wpi_auth(struct wpi_softc *, struct ieee80211vap *);
242 static int wpi_config_beacon(struct wpi_vap *);
243 static int wpi_setup_beacon(struct wpi_softc *, struct ieee80211_node *);
244 static void wpi_update_beacon(struct ieee80211vap *, int);
245 static void wpi_newassoc(struct ieee80211_node *, int);
246 static int wpi_run(struct wpi_softc *, struct ieee80211vap *);
247 static int wpi_load_key(struct ieee80211_node *,
248 const struct ieee80211_key *);
249 static void wpi_load_key_cb(void *, struct ieee80211_node *);
250 static int wpi_set_global_keys(struct ieee80211_node *);
251 static int wpi_del_key(struct ieee80211_node *,
252 const struct ieee80211_key *);
253 static void wpi_del_key_cb(void *, struct ieee80211_node *);
254 static int wpi_process_key(struct ieee80211vap *,
255 const struct ieee80211_key *, int);
256 static int wpi_key_set(struct ieee80211vap *,
257 const struct ieee80211_key *,
258 const uint8_t mac[IEEE80211_ADDR_LEN]);
259 static int wpi_key_delete(struct ieee80211vap *,
260 const struct ieee80211_key *);
261 static int wpi_post_alive(struct wpi_softc *);
262 static int wpi_load_bootcode(struct wpi_softc *, const uint8_t *, int);
263 static int wpi_load_firmware(struct wpi_softc *);
264 static int wpi_read_firmware(struct wpi_softc *);
265 static void wpi_unload_firmware(struct wpi_softc *);
266 static int wpi_clock_wait(struct wpi_softc *);
267 static int wpi_apm_init(struct wpi_softc *);
268 static void wpi_apm_stop_master(struct wpi_softc *);
269 static void wpi_apm_stop(struct wpi_softc *);
270 static void wpi_nic_config(struct wpi_softc *);
271 static int wpi_hw_init(struct wpi_softc *);
272 static void wpi_hw_stop(struct wpi_softc *);
273 static void wpi_radio_on(void *, int);
274 static void wpi_radio_off(void *, int);
275 static void wpi_init(void *);
276 static void wpi_stop_locked(struct wpi_softc *);
277 static void wpi_stop(struct wpi_softc *);
278 static void wpi_scan_start(struct ieee80211com *);
279 static void wpi_scan_end(struct ieee80211com *);
280 static void wpi_set_channel(struct ieee80211com *);
281 static void wpi_scan_curchan(struct ieee80211_scan_state *, unsigned long);
282 static void wpi_scan_mindwell(struct ieee80211_scan_state *);
283 static void wpi_hw_reset(void *, int);
285 static device_method_t wpi_methods[] = {
286 /* Device interface */
287 DEVMETHOD(device_probe, wpi_probe),
288 DEVMETHOD(device_attach, wpi_attach),
289 DEVMETHOD(device_detach, wpi_detach),
290 DEVMETHOD(device_shutdown, wpi_shutdown),
291 DEVMETHOD(device_suspend, wpi_suspend),
292 DEVMETHOD(device_resume, wpi_resume),
297 static driver_t wpi_driver = {
300 sizeof (struct wpi_softc)
302 static devclass_t wpi_devclass;
304 DRIVER_MODULE(wpi, pci, wpi_driver, wpi_devclass, NULL, NULL);
306 MODULE_VERSION(wpi, 1);
308 MODULE_DEPEND(wpi, pci, 1, 1, 1);
309 MODULE_DEPEND(wpi, wlan, 1, 1, 1);
310 MODULE_DEPEND(wpi, firmware, 1, 1, 1);
313 wpi_probe(device_t dev)
315 const struct wpi_ident *ident;
317 for (ident = wpi_ident_table; ident->name != NULL; ident++) {
318 if (pci_get_vendor(dev) == ident->vendor &&
319 pci_get_device(dev) == ident->device) {
320 device_set_desc(dev, ident->name);
321 return (BUS_PROBE_DEFAULT);
328 wpi_attach(device_t dev)
330 struct wpi_softc *sc = (struct wpi_softc *)device_get_softc(dev);
331 struct ieee80211com *ic;
336 const struct wpi_ident *ident;
338 uint8_t macaddr[IEEE80211_ADDR_LEN];
343 error = resource_int_value(device_get_name(sc->sc_dev),
344 device_get_unit(sc->sc_dev), "debug", &(sc->sc_debug));
351 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
354 * Get the offset of the PCI Express Capability Structure in PCI
355 * Configuration Space.
357 error = pci_find_cap(dev, PCIY_EXPRESS, &sc->sc_cap_off);
359 device_printf(dev, "PCIe capability structure not found!\n");
364 * Some card's only support 802.11b/g not a, check to see if
365 * this is one such card. A 0x0 in the subdevice table indicates
366 * the entire subdevice range is to be ignored.
369 for (ident = wpi_ident_table; ident->name != NULL; ident++) {
370 if (ident->subdevice &&
371 pci_get_subdevice(dev) == ident->subdevice) {
378 /* Clear device-specific "PCI retry timeout" register (41h). */
379 pci_write_config(dev, 0x41, 0, 1);
381 /* Enable bus-mastering. */
382 pci_enable_busmaster(dev);
385 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
387 if (sc->mem == NULL) {
388 device_printf(dev, "can't map mem space\n");
391 sc->sc_st = rman_get_bustag(sc->mem);
392 sc->sc_sh = rman_get_bushandle(sc->mem);
396 if (pci_alloc_msi(dev, &i) == 0)
398 /* Install interrupt handler. */
399 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE |
400 (rid != 0 ? 0 : RF_SHAREABLE));
401 if (sc->irq == NULL) {
402 device_printf(dev, "can't map interrupt\n");
408 WPI_TX_LOCK_INIT(sc);
409 WPI_RXON_LOCK_INIT(sc);
410 WPI_NT_LOCK_INIT(sc);
411 WPI_TXQ_LOCK_INIT(sc);
412 WPI_TXQ_STATE_LOCK_INIT(sc);
414 /* Allocate DMA memory for firmware transfers. */
415 if ((error = wpi_alloc_fwmem(sc)) != 0) {
417 "could not allocate memory for firmware, error %d\n",
422 /* Allocate shared page. */
423 if ((error = wpi_alloc_shared(sc)) != 0) {
424 device_printf(dev, "could not allocate shared page\n");
428 /* Allocate TX rings - 4 for QoS purposes, 1 for commands. */
429 for (i = 0; i < WPI_NTXQUEUES; i++) {
430 if ((error = wpi_alloc_tx_ring(sc, &sc->txq[i], i)) != 0) {
432 "could not allocate TX ring %d, error %d\n", i,
438 /* Allocate RX ring. */
439 if ((error = wpi_alloc_rx_ring(sc)) != 0) {
440 device_printf(dev, "could not allocate RX ring, error %d\n",
445 /* Clear pending interrupts. */
446 WPI_WRITE(sc, WPI_INT, 0xffffffff);
448 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
450 device_printf(dev, "can not allocate ifnet structure\n");
457 ic->ic_name = device_get_nameunit(dev);
458 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
459 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
461 /* Set device capabilities. */
463 IEEE80211_C_STA /* station mode supported */
464 | IEEE80211_C_IBSS /* IBSS mode supported */
465 | IEEE80211_C_HOSTAP /* Host access point mode */
466 | IEEE80211_C_MONITOR /* monitor mode supported */
467 | IEEE80211_C_AHDEMO /* adhoc demo mode */
468 | IEEE80211_C_BGSCAN /* capable of bg scanning */
469 | IEEE80211_C_TXPMGT /* tx power management */
470 | IEEE80211_C_SHSLOT /* short slot time supported */
471 | IEEE80211_C_WPA /* 802.11i */
472 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
473 | IEEE80211_C_WME /* 802.11e */
474 | IEEE80211_C_PMGT /* Station-side power mgmt */
478 IEEE80211_CRYPTO_AES_CCM;
481 * Read in the eeprom and also setup the channels for
482 * net80211. We don't set the rates as net80211 does this for us
484 if ((error = wpi_read_eeprom(sc, macaddr)) != 0) {
485 device_printf(dev, "could not read EEPROM, error %d\n",
492 device_printf(sc->sc_dev, "Regulatory Domain: %.4s\n",
494 device_printf(sc->sc_dev, "Hardware Type: %c\n",
495 sc->type > 1 ? 'B': '?');
496 device_printf(sc->sc_dev, "Hardware Revision: %c\n",
497 ((sc->rev & 0xf0) == 0xd0) ? 'D': '?');
498 device_printf(sc->sc_dev, "SKU %s support 802.11a\n",
499 supportsa ? "does" : "does not");
501 /* XXX hw_config uses the PCIDEV for the Hardware rev. Must
502 check what sc->rev really represents - benjsc 20070615 */
506 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
508 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
509 ifp->if_init = wpi_init;
510 ifp->if_ioctl = wpi_ioctl;
511 ifp->if_start = wpi_start;
512 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
513 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
514 IFQ_SET_READY(&ifp->if_snd);
516 ieee80211_ifattach(ic, macaddr);
517 ic->ic_vap_create = wpi_vap_create;
518 ic->ic_vap_delete = wpi_vap_delete;
519 ic->ic_raw_xmit = wpi_raw_xmit;
520 ic->ic_node_alloc = wpi_node_alloc;
521 sc->sc_node_free = ic->ic_node_free;
522 ic->ic_node_free = wpi_node_free;
523 ic->ic_wme.wme_update = wpi_updateedca;
524 ic->ic_update_promisc = wpi_update_promisc;
525 ic->ic_update_mcast = wpi_update_mcast;
526 ic->ic_newassoc = wpi_newassoc;
527 ic->ic_scan_start = wpi_scan_start;
528 ic->ic_scan_end = wpi_scan_end;
529 ic->ic_set_channel = wpi_set_channel;
530 ic->ic_scan_curchan = wpi_scan_curchan;
531 ic->ic_scan_mindwell = wpi_scan_mindwell;
532 ic->ic_setregdomain = wpi_setregdomain;
534 sc->sc_update_rx_ring = wpi_update_rx_ring;
535 sc->sc_update_tx_ring = wpi_update_tx_ring;
537 wpi_radiotap_attach(sc);
539 callout_init_mtx(&sc->calib_to, &sc->rxon_mtx, 0);
540 callout_init_mtx(&sc->scan_timeout, &sc->rxon_mtx, 0);
541 callout_init_mtx(&sc->tx_timeout, &sc->txq_state_mtx, 0);
542 callout_init_mtx(&sc->watchdog_rfkill, &sc->sc_mtx, 0);
543 TASK_INIT(&sc->sc_reinittask, 0, wpi_hw_reset, sc);
544 TASK_INIT(&sc->sc_radiooff_task, 0, wpi_radio_off, sc);
545 TASK_INIT(&sc->sc_radioon_task, 0, wpi_radio_on, sc);
546 TASK_INIT(&sc->sc_start_task, 0, wpi_start_task, sc);
548 sc->sc_tq = taskqueue_create("wpi_taskq", M_WAITOK,
549 taskqueue_thread_enqueue, &sc->sc_tq);
550 error = taskqueue_start_threads(&sc->sc_tq, 1, 0, "wpi_taskq");
552 device_printf(dev, "can't start threads, error %d\n", error);
556 wpi_sysctlattach(sc);
559 * Hook our interrupt after all initialization is complete.
561 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
562 NULL, wpi_intr, sc, &sc->sc_ih);
564 device_printf(dev, "can't establish interrupt, error %d\n",
570 ieee80211_announce(ic);
573 if (sc->sc_debug & WPI_DEBUG_HW)
574 ieee80211_announce_channels(ic);
577 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
580 fail: wpi_detach(dev);
581 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
586 * Attach the interface to 802.11 radiotap.
589 wpi_radiotap_attach(struct wpi_softc *sc)
591 struct ifnet *ifp = sc->sc_ifp;
592 struct ieee80211com *ic = ifp->if_l2com;
593 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
594 ieee80211_radiotap_attach(ic,
595 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
596 WPI_TX_RADIOTAP_PRESENT,
597 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
598 WPI_RX_RADIOTAP_PRESENT);
599 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
603 wpi_sysctlattach(struct wpi_softc *sc)
606 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev);
607 struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev);
609 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
610 "debug", CTLFLAG_RW, &sc->sc_debug, sc->sc_debug,
611 "control debugging printfs");
616 wpi_init_beacon(struct wpi_vap *wvp)
618 struct wpi_buf *bcn = &wvp->wv_bcbuf;
619 struct wpi_cmd_beacon *cmd = (struct wpi_cmd_beacon *)&bcn->data;
621 cmd->id = WPI_ID_BROADCAST;
622 cmd->ofdm_mask = 0xff;
623 cmd->cck_mask = 0x0f;
624 cmd->lifetime = htole32(WPI_LIFETIME_INFINITE);
627 * XXX WPI_TX_AUTO_SEQ seems to be ignored - workaround this issue
628 * XXX by using WPI_TX_NEED_ACK instead (with some side effects).
630 cmd->flags = htole32(WPI_TX_NEED_ACK | WPI_TX_INSERT_TSTAMP);
632 bcn->code = WPI_CMD_SET_BEACON;
633 bcn->ac = WPI_CMD_QUEUE_NUM;
634 bcn->size = sizeof(struct wpi_cmd_beacon);
637 static struct ieee80211vap *
638 wpi_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
639 enum ieee80211_opmode opmode, int flags,
640 const uint8_t bssid[IEEE80211_ADDR_LEN],
641 const uint8_t mac[IEEE80211_ADDR_LEN])
644 struct ieee80211vap *vap;
646 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
649 wvp = (struct wpi_vap *) malloc(sizeof(struct wpi_vap),
650 M_80211_VAP, M_NOWAIT | M_ZERO);
654 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
656 if (opmode == IEEE80211_M_IBSS || opmode == IEEE80211_M_HOSTAP) {
657 WPI_VAP_LOCK_INIT(wvp);
658 wpi_init_beacon(wvp);
661 /* Override with driver methods. */
662 vap->iv_key_set = wpi_key_set;
663 vap->iv_key_delete = wpi_key_delete;
664 wvp->wv_recv_mgmt = vap->iv_recv_mgmt;
665 vap->iv_recv_mgmt = wpi_recv_mgmt;
666 wvp->wv_newstate = vap->iv_newstate;
667 vap->iv_newstate = wpi_newstate;
668 vap->iv_update_beacon = wpi_update_beacon;
669 vap->iv_max_aid = WPI_ID_IBSS_MAX - WPI_ID_IBSS_MIN + 1;
671 ieee80211_ratectl_init(vap);
672 /* Complete setup. */
673 ieee80211_vap_attach(vap, ieee80211_media_change,
674 ieee80211_media_status);
675 ic->ic_opmode = opmode;
680 wpi_vap_delete(struct ieee80211vap *vap)
682 struct wpi_vap *wvp = WPI_VAP(vap);
683 struct wpi_buf *bcn = &wvp->wv_bcbuf;
684 enum ieee80211_opmode opmode = vap->iv_opmode;
686 ieee80211_ratectl_deinit(vap);
687 ieee80211_vap_detach(vap);
689 if (opmode == IEEE80211_M_IBSS || opmode == IEEE80211_M_HOSTAP) {
693 WPI_VAP_LOCK_DESTROY(wvp);
696 free(wvp, M_80211_VAP);
700 wpi_detach(device_t dev)
702 struct wpi_softc *sc = device_get_softc(dev);
703 struct ifnet *ifp = sc->sc_ifp;
704 struct ieee80211com *ic;
707 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
712 ieee80211_draintask(ic, &sc->sc_radioon_task);
713 ieee80211_draintask(ic, &sc->sc_start_task);
717 taskqueue_drain_all(sc->sc_tq);
718 taskqueue_free(sc->sc_tq);
720 callout_drain(&sc->watchdog_rfkill);
721 callout_drain(&sc->tx_timeout);
722 callout_drain(&sc->scan_timeout);
723 callout_drain(&sc->calib_to);
724 ieee80211_ifdetach(ic);
727 /* Uninstall interrupt handler. */
728 if (sc->irq != NULL) {
729 bus_teardown_intr(dev, sc->irq, sc->sc_ih);
730 bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(sc->irq),
732 pci_release_msi(dev);
735 if (sc->txq[0].data_dmat) {
736 /* Free DMA resources. */
737 for (qid = 0; qid < WPI_NTXQUEUES; qid++)
738 wpi_free_tx_ring(sc, &sc->txq[qid]);
740 wpi_free_rx_ring(sc);
748 bus_release_resource(dev, SYS_RES_MEMORY,
749 rman_get_rid(sc->mem), sc->mem);
754 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
755 WPI_TXQ_STATE_LOCK_DESTROY(sc);
756 WPI_TXQ_LOCK_DESTROY(sc);
757 WPI_NT_LOCK_DESTROY(sc);
758 WPI_RXON_LOCK_DESTROY(sc);
759 WPI_TX_LOCK_DESTROY(sc);
760 WPI_LOCK_DESTROY(sc);
765 wpi_shutdown(device_t dev)
767 struct wpi_softc *sc = device_get_softc(dev);
774 wpi_suspend(device_t dev)
776 struct wpi_softc *sc = device_get_softc(dev);
777 struct ieee80211com *ic = sc->sc_ifp->if_l2com;
779 ieee80211_suspend_all(ic);
784 wpi_resume(device_t dev)
786 struct wpi_softc *sc = device_get_softc(dev);
787 struct ieee80211com *ic = sc->sc_ifp->if_l2com;
789 /* Clear device-specific "PCI retry timeout" register (41h). */
790 pci_write_config(dev, 0x41, 0, 1);
792 ieee80211_resume_all(ic);
797 * Grab exclusive access to NIC memory.
800 wpi_nic_lock(struct wpi_softc *sc)
804 /* Request exclusive access to NIC. */
805 WPI_SETBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ);
807 /* Spin until we actually get the lock. */
808 for (ntries = 0; ntries < 1000; ntries++) {
809 if ((WPI_READ(sc, WPI_GP_CNTRL) &
810 (WPI_GP_CNTRL_MAC_ACCESS_ENA | WPI_GP_CNTRL_SLEEP)) ==
811 WPI_GP_CNTRL_MAC_ACCESS_ENA)
816 device_printf(sc->sc_dev, "could not lock memory\n");
822 * Release lock on NIC memory.
825 wpi_nic_unlock(struct wpi_softc *sc)
827 WPI_CLRBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ);
830 static __inline uint32_t
831 wpi_prph_read(struct wpi_softc *sc, uint32_t addr)
833 WPI_WRITE(sc, WPI_PRPH_RADDR, WPI_PRPH_DWORD | addr);
834 WPI_BARRIER_READ_WRITE(sc);
835 return WPI_READ(sc, WPI_PRPH_RDATA);
839 wpi_prph_write(struct wpi_softc *sc, uint32_t addr, uint32_t data)
841 WPI_WRITE(sc, WPI_PRPH_WADDR, WPI_PRPH_DWORD | addr);
842 WPI_BARRIER_WRITE(sc);
843 WPI_WRITE(sc, WPI_PRPH_WDATA, data);
847 wpi_prph_setbits(struct wpi_softc *sc, uint32_t addr, uint32_t mask)
849 wpi_prph_write(sc, addr, wpi_prph_read(sc, addr) | mask);
853 wpi_prph_clrbits(struct wpi_softc *sc, uint32_t addr, uint32_t mask)
855 wpi_prph_write(sc, addr, wpi_prph_read(sc, addr) & ~mask);
859 wpi_prph_write_region_4(struct wpi_softc *sc, uint32_t addr,
860 const uint32_t *data, int count)
862 for (; count > 0; count--, data++, addr += 4)
863 wpi_prph_write(sc, addr, *data);
866 static __inline uint32_t
867 wpi_mem_read(struct wpi_softc *sc, uint32_t addr)
869 WPI_WRITE(sc, WPI_MEM_RADDR, addr);
870 WPI_BARRIER_READ_WRITE(sc);
871 return WPI_READ(sc, WPI_MEM_RDATA);
875 wpi_mem_read_region_4(struct wpi_softc *sc, uint32_t addr, uint32_t *data,
878 for (; count > 0; count--, addr += 4)
879 *data++ = wpi_mem_read(sc, addr);
883 wpi_read_prom_data(struct wpi_softc *sc, uint32_t addr, void *data, int count)
889 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
891 if ((error = wpi_nic_lock(sc)) != 0)
894 for (; count > 0; count -= 2, addr++) {
895 WPI_WRITE(sc, WPI_EEPROM, addr << 2);
896 for (ntries = 0; ntries < 10; ntries++) {
897 val = WPI_READ(sc, WPI_EEPROM);
898 if (val & WPI_EEPROM_READ_VALID)
903 device_printf(sc->sc_dev,
904 "timeout reading ROM at 0x%x\n", addr);
914 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
920 wpi_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
924 KASSERT(nsegs == 1, ("too many DMA segments, %d should be 1", nsegs));
925 *(bus_addr_t *)arg = segs[0].ds_addr;
929 * Allocates a contiguous block of dma memory of the requested size and
933 wpi_dma_contig_alloc(struct wpi_softc *sc, struct wpi_dma_info *dma,
934 void **kvap, bus_size_t size, bus_size_t alignment)
941 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), alignment,
942 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, size,
943 1, size, BUS_DMA_NOWAIT, NULL, NULL, &dma->tag);
947 error = bus_dmamem_alloc(dma->tag, (void **)&dma->vaddr,
948 BUS_DMA_NOWAIT | BUS_DMA_ZERO | BUS_DMA_COHERENT, &dma->map);
952 error = bus_dmamap_load(dma->tag, dma->map, dma->vaddr, size,
953 wpi_dma_map_addr, &dma->paddr, BUS_DMA_NOWAIT);
957 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
964 fail: wpi_dma_contig_free(dma);
969 wpi_dma_contig_free(struct wpi_dma_info *dma)
971 if (dma->vaddr != NULL) {
972 bus_dmamap_sync(dma->tag, dma->map,
973 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
974 bus_dmamap_unload(dma->tag, dma->map);
975 bus_dmamem_free(dma->tag, dma->vaddr, dma->map);
978 if (dma->tag != NULL) {
979 bus_dma_tag_destroy(dma->tag);
985 * Allocate a shared page between host and NIC.
988 wpi_alloc_shared(struct wpi_softc *sc)
990 /* Shared buffer must be aligned on a 4KB boundary. */
991 return wpi_dma_contig_alloc(sc, &sc->shared_dma,
992 (void **)&sc->shared, sizeof (struct wpi_shared), 4096);
996 wpi_free_shared(struct wpi_softc *sc)
998 wpi_dma_contig_free(&sc->shared_dma);
1002 * Allocate DMA-safe memory for firmware transfer.
1005 wpi_alloc_fwmem(struct wpi_softc *sc)
1007 /* Must be aligned on a 16-byte boundary. */
1008 return wpi_dma_contig_alloc(sc, &sc->fw_dma, NULL,
1009 WPI_FW_TEXT_MAXSZ + WPI_FW_DATA_MAXSZ, 16);
1013 wpi_free_fwmem(struct wpi_softc *sc)
1015 wpi_dma_contig_free(&sc->fw_dma);
1019 wpi_alloc_rx_ring(struct wpi_softc *sc)
1021 struct wpi_rx_ring *ring = &sc->rxq;
1028 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
1030 /* Allocate RX descriptors (16KB aligned.) */
1031 size = WPI_RX_RING_COUNT * sizeof (uint32_t);
1032 error = wpi_dma_contig_alloc(sc, &ring->desc_dma,
1033 (void **)&ring->desc, size, WPI_RING_DMA_ALIGN);
1035 device_printf(sc->sc_dev,
1036 "%s: could not allocate RX ring DMA memory, error %d\n",
1041 /* Create RX buffer DMA tag. */
1042 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
1043 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
1044 MJUMPAGESIZE, 1, MJUMPAGESIZE, BUS_DMA_NOWAIT, NULL, NULL,
1047 device_printf(sc->sc_dev,
1048 "%s: could not create RX buf DMA tag, error %d\n",
1054 * Allocate and map RX buffers.
1056 for (i = 0; i < WPI_RX_RING_COUNT; i++) {
1057 struct wpi_rx_data *data = &ring->data[i];
1060 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
1062 device_printf(sc->sc_dev,
1063 "%s: could not create RX buf DMA map, error %d\n",
1068 data->m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE);
1069 if (data->m == NULL) {
1070 device_printf(sc->sc_dev,
1071 "%s: could not allocate RX mbuf\n", __func__);
1076 error = bus_dmamap_load(ring->data_dmat, data->map,
1077 mtod(data->m, void *), MJUMPAGESIZE, wpi_dma_map_addr,
1078 &paddr, BUS_DMA_NOWAIT);
1079 if (error != 0 && error != EFBIG) {
1080 device_printf(sc->sc_dev,
1081 "%s: can't map mbuf (error %d)\n", __func__,
1086 /* Set physical address of RX buffer. */
1087 ring->desc[i] = htole32(paddr);
1090 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
1091 BUS_DMASYNC_PREWRITE);
1093 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
1097 fail: wpi_free_rx_ring(sc);
1099 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
1105 wpi_update_rx_ring(struct wpi_softc *sc)
1107 WPI_WRITE(sc, WPI_FH_RX_WPTR, sc->rxq.cur & ~7);
1111 wpi_update_rx_ring_ps(struct wpi_softc *sc)
1113 struct wpi_rx_ring *ring = &sc->rxq;
1115 if (ring->update != 0) {
1116 /* Wait for INT_WAKEUP event. */
1120 WPI_SETBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ);
1121 if (WPI_READ(sc, WPI_GP_CNTRL) & WPI_GP_CNTRL_SLEEP) {
1122 DPRINTF(sc, WPI_DEBUG_PWRSAVE, "%s: wakeup request\n",
1126 wpi_update_rx_ring(sc);
1127 WPI_CLRBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ);
1132 wpi_reset_rx_ring(struct wpi_softc *sc)
1134 struct wpi_rx_ring *ring = &sc->rxq;
1137 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
1139 if (wpi_nic_lock(sc) == 0) {
1140 WPI_WRITE(sc, WPI_FH_RX_CONFIG, 0);
1141 for (ntries = 0; ntries < 1000; ntries++) {
1142 if (WPI_READ(sc, WPI_FH_RX_STATUS) &
1143 WPI_FH_RX_STATUS_IDLE)
1155 wpi_free_rx_ring(struct wpi_softc *sc)
1157 struct wpi_rx_ring *ring = &sc->rxq;
1160 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
1162 wpi_dma_contig_free(&ring->desc_dma);
1164 for (i = 0; i < WPI_RX_RING_COUNT; i++) {
1165 struct wpi_rx_data *data = &ring->data[i];
1167 if (data->m != NULL) {
1168 bus_dmamap_sync(ring->data_dmat, data->map,
1169 BUS_DMASYNC_POSTREAD);
1170 bus_dmamap_unload(ring->data_dmat, data->map);
1174 if (data->map != NULL)
1175 bus_dmamap_destroy(ring->data_dmat, data->map);
1177 if (ring->data_dmat != NULL) {
1178 bus_dma_tag_destroy(ring->data_dmat);
1179 ring->data_dmat = NULL;
1184 wpi_alloc_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring, int qid)
1195 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
1197 /* Allocate TX descriptors (16KB aligned.) */
1198 size = WPI_TX_RING_COUNT * sizeof (struct wpi_tx_desc);
1199 error = wpi_dma_contig_alloc(sc, &ring->desc_dma, (void **)&ring->desc,
1200 size, WPI_RING_DMA_ALIGN);
1202 device_printf(sc->sc_dev,
1203 "%s: could not allocate TX ring DMA memory, error %d\n",
1208 /* Update shared area with ring physical address. */
1209 sc->shared->txbase[qid] = htole32(ring->desc_dma.paddr);
1210 bus_dmamap_sync(sc->shared_dma.tag, sc->shared_dma.map,
1211 BUS_DMASYNC_PREWRITE);
1214 * We only use rings 0 through 4 (4 EDCA + cmd) so there is no need
1215 * to allocate commands space for other rings.
1216 * XXX Do we really need to allocate descriptors for other rings?
1218 if (qid > WPI_CMD_QUEUE_NUM) {
1219 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
1223 size = WPI_TX_RING_COUNT * sizeof (struct wpi_tx_cmd);
1224 error = wpi_dma_contig_alloc(sc, &ring->cmd_dma, (void **)&ring->cmd,
1227 device_printf(sc->sc_dev,
1228 "%s: could not allocate TX cmd DMA memory, error %d\n",
1233 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
1234 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES,
1235 WPI_MAX_SCATTER - 1, MCLBYTES, BUS_DMA_NOWAIT, NULL, NULL,
1238 device_printf(sc->sc_dev,
1239 "%s: could not create TX buf DMA tag, error %d\n",
1244 paddr = ring->cmd_dma.paddr;
1245 for (i = 0; i < WPI_TX_RING_COUNT; i++) {
1246 struct wpi_tx_data *data = &ring->data[i];
1248 data->cmd_paddr = paddr;
1249 paddr += sizeof (struct wpi_tx_cmd);
1251 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
1253 device_printf(sc->sc_dev,
1254 "%s: could not create TX buf DMA map, error %d\n",
1260 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
1264 fail: wpi_free_tx_ring(sc, ring);
1265 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
1270 wpi_update_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring)
1272 WPI_WRITE(sc, WPI_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur);
1276 wpi_update_tx_ring_ps(struct wpi_softc *sc, struct wpi_tx_ring *ring)
1279 if (ring->update != 0) {
1280 /* Wait for INT_WAKEUP event. */
1284 WPI_SETBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ);
1285 if (WPI_READ(sc, WPI_GP_CNTRL) & WPI_GP_CNTRL_SLEEP) {
1286 DPRINTF(sc, WPI_DEBUG_PWRSAVE, "%s (%d): requesting wakeup\n",
1287 __func__, ring->qid);
1290 wpi_update_tx_ring(sc, ring);
1291 WPI_CLRBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ);
1296 wpi_reset_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring)
1300 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
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);
1312 if (data->ni != NULL) {
1313 ieee80211_free_node(data->ni);
1317 /* Clear TX descriptors. */
1318 memset(ring->desc, 0, ring->desc_dma.size);
1319 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
1320 BUS_DMASYNC_PREWRITE);
1321 sc->qfullmsk &= ~(1 << ring->qid);
1328 wpi_free_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring)
1332 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
1334 wpi_dma_contig_free(&ring->desc_dma);
1335 wpi_dma_contig_free(&ring->cmd_dma);
1337 for (i = 0; i < WPI_TX_RING_COUNT; i++) {
1338 struct wpi_tx_data *data = &ring->data[i];
1340 if (data->m != NULL) {
1341 bus_dmamap_sync(ring->data_dmat, data->map,
1342 BUS_DMASYNC_POSTWRITE);
1343 bus_dmamap_unload(ring->data_dmat, data->map);
1346 if (data->map != NULL)
1347 bus_dmamap_destroy(ring->data_dmat, data->map);
1349 if (ring->data_dmat != NULL) {
1350 bus_dma_tag_destroy(ring->data_dmat);
1351 ring->data_dmat = NULL;
1356 * Extract various information from EEPROM.
1359 wpi_read_eeprom(struct wpi_softc *sc, uint8_t macaddr[IEEE80211_ADDR_LEN])
1361 #define WPI_CHK(res) do { \
1362 if ((error = res) != 0) \
1367 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
1369 /* Adapter has to be powered on for EEPROM access to work. */
1370 if ((error = wpi_apm_init(sc)) != 0) {
1371 device_printf(sc->sc_dev,
1372 "%s: could not power ON adapter, error %d\n", __func__,
1377 if ((WPI_READ(sc, WPI_EEPROM_GP) & 0x6) == 0) {
1378 device_printf(sc->sc_dev, "bad EEPROM signature\n");
1382 /* Clear HW ownership of EEPROM. */
1383 WPI_CLRBITS(sc, WPI_EEPROM_GP, WPI_EEPROM_GP_IF_OWNER);
1385 /* Read the hardware capabilities, revision and SKU type. */
1386 WPI_CHK(wpi_read_prom_data(sc, WPI_EEPROM_SKU_CAP, &sc->cap,
1388 WPI_CHK(wpi_read_prom_data(sc, WPI_EEPROM_REVISION, &sc->rev,
1390 WPI_CHK(wpi_read_prom_data(sc, WPI_EEPROM_TYPE, &sc->type,
1393 sc->rev = le16toh(sc->rev);
1394 DPRINTF(sc, WPI_DEBUG_EEPROM, "cap=%x rev=%x type=%x\n", sc->cap,
1397 /* Read the regulatory domain (4 ASCII characters.) */
1398 WPI_CHK(wpi_read_prom_data(sc, WPI_EEPROM_DOMAIN, sc->domain,
1399 sizeof(sc->domain)));
1401 /* Read MAC address. */
1402 WPI_CHK(wpi_read_prom_data(sc, WPI_EEPROM_MAC, macaddr,
1403 IEEE80211_ADDR_LEN));
1405 /* Read the list of authorized channels. */
1406 for (i = 0; i < WPI_CHAN_BANDS_COUNT; i++)
1407 WPI_CHK(wpi_read_eeprom_channels(sc, i));
1409 /* Read the list of TX power groups. */
1410 for (i = 0; i < WPI_POWER_GROUPS_COUNT; i++)
1411 WPI_CHK(wpi_read_eeprom_group(sc, i));
1413 fail: wpi_apm_stop(sc); /* Power OFF adapter. */
1415 DPRINTF(sc, WPI_DEBUG_TRACE, error ? TRACE_STR_END_ERR : TRACE_STR_END,
1423 * Translate EEPROM flags to net80211.
1426 wpi_eeprom_channel_flags(struct wpi_eeprom_chan *channel)
1431 if ((channel->flags & WPI_EEPROM_CHAN_ACTIVE) == 0)
1432 nflags |= IEEE80211_CHAN_PASSIVE;
1433 if ((channel->flags & WPI_EEPROM_CHAN_IBSS) == 0)
1434 nflags |= IEEE80211_CHAN_NOADHOC;
1435 if (channel->flags & WPI_EEPROM_CHAN_RADAR) {
1436 nflags |= IEEE80211_CHAN_DFS;
1437 /* XXX apparently IBSS may still be marked */
1438 nflags |= IEEE80211_CHAN_NOADHOC;
1441 /* XXX HOSTAP uses WPI_MODE_IBSS */
1442 if (nflags & IEEE80211_CHAN_NOADHOC)
1443 nflags |= IEEE80211_CHAN_NOHOSTAP;
1449 wpi_read_eeprom_band(struct wpi_softc *sc, int n)
1451 struct ifnet *ifp = sc->sc_ifp;
1452 struct ieee80211com *ic = ifp->if_l2com;
1453 struct wpi_eeprom_chan *channels = sc->eeprom_channels[n];
1454 const struct wpi_chan_band *band = &wpi_bands[n];
1455 struct ieee80211_channel *c;
1459 for (i = 0; i < band->nchan; i++) {
1460 if (!(channels[i].flags & WPI_EEPROM_CHAN_VALID)) {
1461 DPRINTF(sc, WPI_DEBUG_EEPROM,
1462 "Channel Not Valid: %d, band %d\n",
1467 chan = band->chan[i];
1468 nflags = wpi_eeprom_channel_flags(&channels[i]);
1470 c = &ic->ic_channels[ic->ic_nchans++];
1472 c->ic_maxregpower = channels[i].maxpwr;
1473 c->ic_maxpower = 2*c->ic_maxregpower;
1475 if (n == 0) { /* 2GHz band */
1476 c->ic_freq = ieee80211_ieee2mhz(chan,
1479 /* G =>'s B is supported */
1480 c->ic_flags = IEEE80211_CHAN_B | nflags;
1481 c = &ic->ic_channels[ic->ic_nchans++];
1483 c->ic_flags = IEEE80211_CHAN_G | nflags;
1484 } else { /* 5GHz band */
1485 c->ic_freq = ieee80211_ieee2mhz(chan,
1488 c->ic_flags = IEEE80211_CHAN_A | nflags;
1491 /* Save maximum allowed TX power for this channel. */
1492 sc->maxpwr[chan] = channels[i].maxpwr;
1494 DPRINTF(sc, WPI_DEBUG_EEPROM,
1495 "adding chan %d (%dMHz) flags=0x%x maxpwr=%d passive=%d,"
1496 " offset %d\n", chan, c->ic_freq,
1497 channels[i].flags, sc->maxpwr[chan],
1498 IEEE80211_IS_CHAN_PASSIVE(c), ic->ic_nchans);
1503 * Read the eeprom to find out what channels are valid for the given
1504 * band and update net80211 with what we find.
1507 wpi_read_eeprom_channels(struct wpi_softc *sc, int n)
1509 struct ifnet *ifp = sc->sc_ifp;
1510 struct ieee80211com *ic = ifp->if_l2com;
1511 const struct wpi_chan_band *band = &wpi_bands[n];
1514 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
1516 error = wpi_read_prom_data(sc, band->addr, &sc->eeprom_channels[n],
1517 band->nchan * sizeof (struct wpi_eeprom_chan));
1519 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
1523 wpi_read_eeprom_band(sc, n);
1525 ieee80211_sort_channels(ic->ic_channels, ic->ic_nchans);
1527 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
1532 static struct wpi_eeprom_chan *
1533 wpi_find_eeprom_channel(struct wpi_softc *sc, struct ieee80211_channel *c)
1537 for (j = 0; j < WPI_CHAN_BANDS_COUNT; j++)
1538 for (i = 0; i < wpi_bands[j].nchan; i++)
1539 if (wpi_bands[j].chan[i] == c->ic_ieee)
1540 return &sc->eeprom_channels[j][i];
1546 * Enforce flags read from EEPROM.
1549 wpi_setregdomain(struct ieee80211com *ic, struct ieee80211_regdomain *rd,
1550 int nchan, struct ieee80211_channel chans[])
1552 struct wpi_softc *sc = ic->ic_softc;
1555 for (i = 0; i < nchan; i++) {
1556 struct ieee80211_channel *c = &chans[i];
1557 struct wpi_eeprom_chan *channel;
1559 channel = wpi_find_eeprom_channel(sc, c);
1560 if (channel == NULL) {
1561 if_printf(ic->ic_ifp,
1562 "%s: invalid channel %u freq %u/0x%x\n",
1563 __func__, c->ic_ieee, c->ic_freq, c->ic_flags);
1566 c->ic_flags |= wpi_eeprom_channel_flags(channel);
1573 wpi_read_eeprom_group(struct wpi_softc *sc, int n)
1575 struct wpi_power_group *group = &sc->groups[n];
1576 struct wpi_eeprom_group rgroup;
1579 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
1581 if ((error = wpi_read_prom_data(sc, WPI_EEPROM_POWER_GRP + n * 32,
1582 &rgroup, sizeof rgroup)) != 0) {
1583 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
1587 /* Save TX power group information. */
1588 group->chan = rgroup.chan;
1589 group->maxpwr = rgroup.maxpwr;
1590 /* Retrieve temperature at which the samples were taken. */
1591 group->temp = (int16_t)le16toh(rgroup.temp);
1593 DPRINTF(sc, WPI_DEBUG_EEPROM,
1594 "power group %d: chan=%d maxpwr=%d temp=%d\n", n, group->chan,
1595 group->maxpwr, group->temp);
1597 for (i = 0; i < WPI_SAMPLES_COUNT; i++) {
1598 group->samples[i].index = rgroup.samples[i].index;
1599 group->samples[i].power = rgroup.samples[i].power;
1601 DPRINTF(sc, WPI_DEBUG_EEPROM,
1602 "\tsample %d: index=%d power=%d\n", i,
1603 group->samples[i].index, group->samples[i].power);
1606 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
1612 wpi_add_node_entry_adhoc(struct wpi_softc *sc)
1614 int newid = WPI_ID_IBSS_MIN;
1616 for (; newid <= WPI_ID_IBSS_MAX; newid++) {
1617 if ((sc->nodesmsk & (1 << newid)) == 0) {
1618 sc->nodesmsk |= 1 << newid;
1623 return WPI_ID_UNDEFINED;
1627 wpi_add_node_entry_sta(struct wpi_softc *sc)
1629 sc->nodesmsk |= 1 << WPI_ID_BSS;
1635 wpi_check_node_entry(struct wpi_softc *sc, uint8_t id)
1637 if (id == WPI_ID_UNDEFINED)
1640 return (sc->nodesmsk >> id) & 1;
1643 static __inline void
1644 wpi_clear_node_table(struct wpi_softc *sc)
1649 static __inline void
1650 wpi_del_node_entry(struct wpi_softc *sc, uint8_t id)
1652 sc->nodesmsk &= ~(1 << id);
1655 static struct ieee80211_node *
1656 wpi_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN])
1658 struct wpi_node *wn;
1660 wn = malloc(sizeof (struct wpi_node), M_80211_NODE,
1666 wn->id = WPI_ID_UNDEFINED;
1672 wpi_node_free(struct ieee80211_node *ni)
1674 struct ieee80211com *ic = ni->ni_ic;
1675 struct wpi_softc *sc = ic->ic_softc;
1676 struct wpi_node *wn = WPI_NODE(ni);
1678 if (wn->id != WPI_ID_UNDEFINED) {
1680 if (wpi_check_node_entry(sc, wn->id)) {
1681 wpi_del_node_entry(sc, wn->id);
1682 wpi_del_node(sc, ni);
1687 sc->sc_node_free(ni);
1691 wpi_check_bss_filter(struct wpi_softc *sc)
1693 return (sc->rxon.filter & htole32(WPI_FILTER_BSS)) != 0;
1697 wpi_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, int subtype,
1698 const struct ieee80211_rx_stats *rxs,
1701 struct ieee80211vap *vap = ni->ni_vap;
1702 struct wpi_softc *sc = vap->iv_ic->ic_softc;
1703 struct wpi_vap *wvp = WPI_VAP(vap);
1704 uint64_t ni_tstamp, rx_tstamp;
1706 wvp->wv_recv_mgmt(ni, m, subtype, rxs, rssi, nf);
1708 if (vap->iv_opmode == IEEE80211_M_IBSS &&
1709 vap->iv_state == IEEE80211_S_RUN &&
1710 (subtype == IEEE80211_FC0_SUBTYPE_BEACON ||
1711 subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP)) {
1712 ni_tstamp = le64toh(ni->ni_tstamp.tsf);
1713 rx_tstamp = le64toh(sc->rx_tstamp);
1715 if (ni_tstamp >= rx_tstamp) {
1716 DPRINTF(sc, WPI_DEBUG_STATE,
1717 "ibss merge, tsf %ju tstamp %ju\n",
1718 (uintmax_t)rx_tstamp, (uintmax_t)ni_tstamp);
1719 (void) ieee80211_ibss_merge(ni);
1725 wpi_restore_node(void *arg, struct ieee80211_node *ni)
1727 struct wpi_softc *sc = arg;
1728 struct wpi_node *wn = WPI_NODE(ni);
1732 if (wn->id != WPI_ID_UNDEFINED) {
1733 wn->id = WPI_ID_UNDEFINED;
1734 if ((error = wpi_add_ibss_node(sc, ni)) != 0) {
1735 device_printf(sc->sc_dev,
1736 "%s: could not add IBSS node, error %d\n",
1744 wpi_restore_node_table(struct wpi_softc *sc, struct wpi_vap *wvp)
1746 struct ieee80211com *ic = sc->sc_ifp->if_l2com;
1748 /* Set group keys once. */
1753 ieee80211_iterate_nodes(&ic->ic_sta, wpi_restore_node, sc);
1754 ieee80211_crypto_reload_keys(ic);
1758 * Called by net80211 when ever there is a change to 80211 state machine
1761 wpi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
1763 struct wpi_vap *wvp = WPI_VAP(vap);
1764 struct ieee80211com *ic = vap->iv_ic;
1765 struct wpi_softc *sc = ic->ic_softc;
1768 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
1770 DPRINTF(sc, WPI_DEBUG_STATE, "%s: %s -> %s\n", __func__,
1771 ieee80211_state_name[vap->iv_state],
1772 ieee80211_state_name[nstate]);
1774 if (vap->iv_state == IEEE80211_S_RUN && nstate < IEEE80211_S_RUN) {
1775 if ((error = wpi_set_pslevel(sc, 0, 0, 1)) != 0) {
1776 device_printf(sc->sc_dev,
1777 "%s: could not set power saving level\n",
1782 wpi_set_led(sc, WPI_LED_LINK, 1, 0);
1786 case IEEE80211_S_SCAN:
1788 if (wpi_check_bss_filter(sc) != 0) {
1789 sc->rxon.filter &= ~htole32(WPI_FILTER_BSS);
1790 if ((error = wpi_send_rxon(sc, 0, 1)) != 0) {
1791 device_printf(sc->sc_dev,
1792 "%s: could not send RXON\n", __func__);
1795 WPI_RXON_UNLOCK(sc);
1798 case IEEE80211_S_ASSOC:
1799 if (vap->iv_state != IEEE80211_S_RUN)
1802 case IEEE80211_S_AUTH:
1804 * NB: do not optimize AUTH -> AUTH state transmission -
1805 * this will break powersave with non-QoS AP!
1809 * The node must be registered in the firmware before auth.
1810 * Also the associd must be cleared on RUN -> ASSOC
1813 if ((error = wpi_auth(sc, vap)) != 0) {
1814 device_printf(sc->sc_dev,
1815 "%s: could not move to AUTH state, error %d\n",
1820 case IEEE80211_S_RUN:
1822 * RUN -> RUN transition:
1823 * STA mode: Just restart the timers.
1824 * IBSS mode: Process IBSS merge.
1826 if (vap->iv_state == IEEE80211_S_RUN) {
1827 if (vap->iv_opmode != IEEE80211_M_IBSS) {
1829 wpi_calib_timeout(sc);
1830 WPI_RXON_UNLOCK(sc);
1834 * Drop the BSS_FILTER bit
1835 * (there is no another way to change bssid).
1838 sc->rxon.filter &= ~htole32(WPI_FILTER_BSS);
1839 if ((error = wpi_send_rxon(sc, 0, 1)) != 0) {
1840 device_printf(sc->sc_dev,
1841 "%s: could not send RXON\n",
1844 WPI_RXON_UNLOCK(sc);
1846 /* Restore all what was lost. */
1847 wpi_restore_node_table(sc, wvp);
1849 /* XXX set conditionally? */
1855 * !RUN -> RUN requires setting the association id
1856 * which is done with a firmware cmd. We also defer
1857 * starting the timers until that work is done.
1859 if ((error = wpi_run(sc, vap)) != 0) {
1860 device_printf(sc->sc_dev,
1861 "%s: could not move to RUN state\n", __func__);
1869 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
1873 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
1875 return wvp->wv_newstate(vap, nstate, arg);
1879 wpi_calib_timeout(void *arg)
1881 struct wpi_softc *sc = arg;
1883 if (wpi_check_bss_filter(sc) == 0)
1886 wpi_power_calibration(sc);
1888 callout_reset(&sc->calib_to, 60*hz, wpi_calib_timeout, sc);
1891 static __inline uint8_t
1892 rate2plcp(const uint8_t rate)
1895 case 12: return 0xd;
1896 case 18: return 0xf;
1897 case 24: return 0x5;
1898 case 36: return 0x7;
1899 case 48: return 0x9;
1900 case 72: return 0xb;
1901 case 96: return 0x1;
1902 case 108: return 0x3;
1906 case 22: return 110;
1911 static __inline uint8_t
1912 plcp2rate(const uint8_t plcp)
1915 case 0xd: return 12;
1916 case 0xf: return 18;
1917 case 0x5: return 24;
1918 case 0x7: return 36;
1919 case 0x9: return 48;
1920 case 0xb: return 72;
1921 case 0x1: return 96;
1922 case 0x3: return 108;
1926 case 110: return 22;
1931 /* Quickly determine if a given rate is CCK or OFDM. */
1932 #define WPI_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22)
1935 wpi_rx_done(struct wpi_softc *sc, struct wpi_rx_desc *desc,
1936 struct wpi_rx_data *data)
1938 struct ifnet *ifp = sc->sc_ifp;
1939 struct ieee80211com *ic = ifp->if_l2com;
1940 struct wpi_rx_ring *ring = &sc->rxq;
1941 struct wpi_rx_stat *stat;
1942 struct wpi_rx_head *head;
1943 struct wpi_rx_tail *tail;
1944 struct ieee80211_frame *wh;
1945 struct ieee80211_node *ni;
1946 struct mbuf *m, *m1;
1952 stat = (struct wpi_rx_stat *)(desc + 1);
1954 if (stat->len > WPI_STAT_MAXLEN) {
1955 device_printf(sc->sc_dev, "invalid RX statistic header\n");
1959 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTREAD);
1960 head = (struct wpi_rx_head *)((caddr_t)(stat + 1) + stat->len);
1961 len = le16toh(head->len);
1962 tail = (struct wpi_rx_tail *)((caddr_t)(head + 1) + len);
1963 flags = le32toh(tail->flags);
1965 DPRINTF(sc, WPI_DEBUG_RECV, "%s: idx %d len %d stat len %u rssi %d"
1966 " rate %x chan %d tstamp %ju\n", __func__, ring->cur,
1967 le32toh(desc->len), len, (int8_t)stat->rssi,
1968 head->plcp, head->chan, (uintmax_t)le64toh(tail->tstamp));
1970 /* Discard frames with a bad FCS early. */
1971 if ((flags & WPI_RX_NOERROR) != WPI_RX_NOERROR) {
1972 DPRINTF(sc, WPI_DEBUG_RECV, "%s: RX flags error %x\n",
1976 /* Discard frames that are too short. */
1977 if (len < sizeof (struct ieee80211_frame_ack)) {
1978 DPRINTF(sc, WPI_DEBUG_RECV, "%s: frame too short: %d\n",
1983 m1 = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE);
1985 DPRINTF(sc, WPI_DEBUG_ANY, "%s: no mbuf to restock ring\n",
1989 bus_dmamap_unload(ring->data_dmat, data->map);
1991 error = bus_dmamap_load(ring->data_dmat, data->map, mtod(m1, void *),
1992 MJUMPAGESIZE, wpi_dma_map_addr, &paddr, BUS_DMA_NOWAIT);
1993 if (error != 0 && error != EFBIG) {
1994 device_printf(sc->sc_dev,
1995 "%s: bus_dmamap_load failed, error %d\n", __func__, error);
1998 /* Try to reload the old mbuf. */
1999 error = bus_dmamap_load(ring->data_dmat, data->map,
2000 mtod(data->m, void *), MJUMPAGESIZE, wpi_dma_map_addr,
2001 &paddr, BUS_DMA_NOWAIT);
2002 if (error != 0 && error != EFBIG) {
2003 panic("%s: could not load old RX mbuf", __func__);
2005 /* Physical address may have changed. */
2006 ring->desc[ring->cur] = htole32(paddr);
2007 bus_dmamap_sync(ring->data_dmat, ring->desc_dma.map,
2008 BUS_DMASYNC_PREWRITE);
2014 /* Update RX descriptor. */
2015 ring->desc[ring->cur] = htole32(paddr);
2016 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
2017 BUS_DMASYNC_PREWRITE);
2019 /* Finalize mbuf. */
2020 m->m_pkthdr.rcvif = ifp;
2021 m->m_data = (caddr_t)(head + 1);
2022 m->m_pkthdr.len = m->m_len = len;
2024 /* Grab a reference to the source node. */
2025 wh = mtod(m, struct ieee80211_frame *);
2027 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) &&
2028 (flags & WPI_RX_CIPHER_MASK) == WPI_RX_CIPHER_CCMP) {
2029 /* Check whether decryption was successful or not. */
2030 if ((flags & WPI_RX_DECRYPT_MASK) != WPI_RX_DECRYPT_OK) {
2031 DPRINTF(sc, WPI_DEBUG_RECV,
2032 "CCMP decryption failed 0x%x\n", flags);
2035 m->m_flags |= M_WEP;
2038 if (len >= sizeof(struct ieee80211_frame_min))
2039 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh);
2043 sc->rx_tstamp = tail->tstamp;
2045 if (ieee80211_radiotap_active(ic)) {
2046 struct wpi_rx_radiotap_header *tap = &sc->sc_rxtap;
2049 if (head->flags & htole16(WPI_STAT_FLAG_SHPREAMBLE))
2050 tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
2051 tap->wr_dbm_antsignal = (int8_t)(stat->rssi + WPI_RSSI_OFFSET);
2052 tap->wr_dbm_antnoise = WPI_RSSI_OFFSET;
2053 tap->wr_tsft = tail->tstamp;
2054 tap->wr_antenna = (le16toh(head->flags) >> 4) & 0xf;
2055 tap->wr_rate = plcp2rate(head->plcp);
2060 /* Send the frame to the 802.11 layer. */
2062 (void)ieee80211_input(ni, m, stat->rssi, WPI_RSSI_OFFSET);
2063 /* Node is no longer needed. */
2064 ieee80211_free_node(ni);
2066 (void)ieee80211_input_all(ic, m, stat->rssi, WPI_RSSI_OFFSET);
2074 fail1: if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
2078 wpi_rx_statistics(struct wpi_softc *sc, struct wpi_rx_desc *desc,
2079 struct wpi_rx_data *data)
2085 wpi_tx_done(struct wpi_softc *sc, struct wpi_rx_desc *desc)
2087 struct ifnet *ifp = sc->sc_ifp;
2088 struct wpi_tx_ring *ring = &sc->txq[desc->qid & 0x3];
2089 struct wpi_tx_data *data = &ring->data[desc->idx];
2090 struct wpi_tx_stat *stat = (struct wpi_tx_stat *)(desc + 1);
2092 struct ieee80211_node *ni;
2093 struct ieee80211vap *vap;
2094 struct ieee80211com *ic;
2095 uint32_t status = le32toh(stat->status);
2096 int ackfailcnt = stat->ackfailcnt / WPI_NTRIES_DEFAULT;
2098 KASSERT(data->ni != NULL, ("no node"));
2099 KASSERT(data->m != NULL, ("no mbuf"));
2101 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
2103 DPRINTF(sc, WPI_DEBUG_XMIT, "%s: "
2104 "qid %d idx %d retries %d btkillcnt %d rate %x duration %d "
2105 "status %x\n", __func__, desc->qid, desc->idx, stat->ackfailcnt,
2106 stat->btkillcnt, stat->rate, le32toh(stat->duration), status);
2108 /* Unmap and free mbuf. */
2109 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTWRITE);
2110 bus_dmamap_unload(ring->data_dmat, data->map);
2111 m = data->m, data->m = NULL;
2112 ni = data->ni, data->ni = NULL;
2117 * Update rate control statistics for the node.
2119 if (status & WPI_TX_STATUS_FAIL) {
2120 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
2121 ieee80211_ratectl_tx_complete(vap, ni,
2122 IEEE80211_RATECTL_TX_FAILURE, &ackfailcnt, NULL);
2124 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
2125 ieee80211_ratectl_tx_complete(vap, ni,
2126 IEEE80211_RATECTL_TX_SUCCESS, &ackfailcnt, NULL);
2129 ieee80211_tx_complete(ni, m, (status & WPI_TX_STATUS_FAIL) != 0);
2131 WPI_TXQ_STATE_LOCK(sc);
2133 if (ring->queued > 0) {
2134 callout_reset(&sc->tx_timeout, 5*hz, wpi_tx_timeout, sc);
2136 if (sc->qfullmsk != 0 &&
2137 ring->queued < WPI_TX_RING_LOMARK) {
2138 sc->qfullmsk &= ~(1 << ring->qid);
2139 IF_LOCK(&ifp->if_snd);
2140 if (sc->qfullmsk == 0 &&
2141 (ifp->if_drv_flags & IFF_DRV_OACTIVE)) {
2142 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
2143 IF_UNLOCK(&ifp->if_snd);
2144 ieee80211_runtask(ic, &sc->sc_start_task);
2146 IF_UNLOCK(&ifp->if_snd);
2149 callout_stop(&sc->tx_timeout);
2150 WPI_TXQ_STATE_UNLOCK(sc);
2152 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
2156 * Process a "command done" firmware notification. This is where we wakeup
2157 * processes waiting for a synchronous command completion.
2160 wpi_cmd_done(struct wpi_softc *sc, struct wpi_rx_desc *desc)
2162 struct wpi_tx_ring *ring = &sc->txq[WPI_CMD_QUEUE_NUM];
2163 struct wpi_tx_data *data;
2165 DPRINTF(sc, WPI_DEBUG_CMD, "cmd notification qid %x idx %d flags %x "
2166 "type %s len %d\n", desc->qid, desc->idx,
2167 desc->flags, wpi_cmd_str(desc->type),
2168 le32toh(desc->len));
2170 if ((desc->qid & WPI_RX_DESC_QID_MSK) != WPI_CMD_QUEUE_NUM)
2171 return; /* Not a command ack. */
2173 KASSERT(ring->queued == 0, ("ring->queued must be 0"));
2175 data = &ring->data[desc->idx];
2177 /* If the command was mapped in an mbuf, free it. */
2178 if (data->m != NULL) {
2179 bus_dmamap_sync(ring->data_dmat, data->map,
2180 BUS_DMASYNC_POSTWRITE);
2181 bus_dmamap_unload(ring->data_dmat, data->map);
2186 wakeup(&ring->cmd[desc->idx]);
2188 if (desc->type == WPI_CMD_SET_POWER_MODE) {
2190 if (sc->sc_flags & WPI_PS_PATH) {
2191 sc->sc_update_rx_ring = wpi_update_rx_ring_ps;
2192 sc->sc_update_tx_ring = wpi_update_tx_ring_ps;
2194 sc->sc_update_rx_ring = wpi_update_rx_ring;
2195 sc->sc_update_tx_ring = wpi_update_tx_ring;
2202 wpi_notif_intr(struct wpi_softc *sc)
2204 struct ifnet *ifp = sc->sc_ifp;
2205 struct ieee80211com *ic = ifp->if_l2com;
2206 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2209 bus_dmamap_sync(sc->shared_dma.tag, sc->shared_dma.map,
2210 BUS_DMASYNC_POSTREAD);
2212 hw = le32toh(sc->shared->next) & 0xfff;
2213 hw = (hw == 0) ? WPI_RX_RING_COUNT - 1 : hw - 1;
2215 while (sc->rxq.cur != hw) {
2216 sc->rxq.cur = (sc->rxq.cur + 1) % WPI_RX_RING_COUNT;
2218 struct wpi_rx_data *data = &sc->rxq.data[sc->rxq.cur];
2219 struct wpi_rx_desc *desc;
2221 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2222 BUS_DMASYNC_POSTREAD);
2223 desc = mtod(data->m, struct wpi_rx_desc *);
2225 DPRINTF(sc, WPI_DEBUG_NOTIFY,
2226 "%s: cur=%d; qid %x idx %d flags %x type %d(%s) len %d\n",
2227 __func__, sc->rxq.cur, desc->qid, desc->idx, desc->flags,
2228 desc->type, wpi_cmd_str(desc->type), le32toh(desc->len));
2230 if (!(desc->qid & WPI_UNSOLICITED_RX_NOTIF)) {
2231 /* Reply to a command. */
2232 wpi_cmd_done(sc, desc);
2235 switch (desc->type) {
2237 /* An 802.11 frame has been received. */
2238 wpi_rx_done(sc, desc, data);
2240 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
2241 /* wpi_stop() was called. */
2248 /* An 802.11 frame has been transmitted. */
2249 wpi_tx_done(sc, desc);
2252 case WPI_RX_STATISTICS:
2253 case WPI_BEACON_STATISTICS:
2254 wpi_rx_statistics(sc, desc, data);
2257 case WPI_BEACON_MISSED:
2259 struct wpi_beacon_missed *miss =
2260 (struct wpi_beacon_missed *)(desc + 1);
2261 uint32_t expected, misses, received, threshold;
2263 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2264 BUS_DMASYNC_POSTREAD);
2266 misses = le32toh(miss->consecutive);
2267 expected = le32toh(miss->expected);
2268 received = le32toh(miss->received);
2269 threshold = MAX(2, vap->iv_bmissthreshold);
2271 DPRINTF(sc, WPI_DEBUG_BMISS,
2272 "%s: beacons missed %u(%u) (received %u/%u)\n",
2273 __func__, misses, le32toh(miss->total), received,
2276 if (misses >= threshold ||
2277 (received == 0 && expected >= threshold)) {
2279 if (callout_pending(&sc->scan_timeout)) {
2280 wpi_cmd(sc, WPI_CMD_SCAN_ABORT, NULL,
2283 WPI_RXON_UNLOCK(sc);
2284 if (vap->iv_state == IEEE80211_S_RUN &&
2285 (ic->ic_flags & IEEE80211_F_SCAN) == 0)
2286 ieee80211_beacon_miss(ic);
2292 case WPI_BEACON_SENT:
2294 struct wpi_tx_stat *stat =
2295 (struct wpi_tx_stat *)(desc + 1);
2296 uint64_t *tsf = (uint64_t *)(stat + 1);
2297 uint32_t *mode = (uint32_t *)(tsf + 1);
2299 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2300 BUS_DMASYNC_POSTREAD);
2302 DPRINTF(sc, WPI_DEBUG_BEACON,
2303 "beacon sent: rts %u, ack %u, btkill %u, rate %u, "
2304 "duration %u, status %x, tsf %ju, mode %x\n",
2305 stat->rtsfailcnt, stat->ackfailcnt,
2306 stat->btkillcnt, stat->rate, le32toh(stat->duration),
2307 le32toh(stat->status), *tsf, *mode);
2314 struct wpi_ucode_info *uc =
2315 (struct wpi_ucode_info *)(desc + 1);
2317 /* The microcontroller is ready. */
2318 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2319 BUS_DMASYNC_POSTREAD);
2320 DPRINTF(sc, WPI_DEBUG_RESET,
2321 "microcode alive notification version=%d.%d "
2322 "subtype=%x alive=%x\n", uc->major, uc->minor,
2323 uc->subtype, le32toh(uc->valid));
2325 if (le32toh(uc->valid) != 1) {
2326 device_printf(sc->sc_dev,
2327 "microcontroller initialization failed\n");
2328 wpi_stop_locked(sc);
2330 /* Save the address of the error log in SRAM. */
2331 sc->errptr = le32toh(uc->errptr);
2334 case WPI_STATE_CHANGED:
2336 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2337 BUS_DMASYNC_POSTREAD);
2339 uint32_t *status = (uint32_t *)(desc + 1);
2341 DPRINTF(sc, WPI_DEBUG_STATE, "state changed to %x\n",
2344 if (le32toh(*status) & 1) {
2346 wpi_clear_node_table(sc);
2348 taskqueue_enqueue(sc->sc_tq,
2349 &sc->sc_radiooff_task);
2355 case WPI_START_SCAN:
2357 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2358 BUS_DMASYNC_POSTREAD);
2360 struct wpi_start_scan *scan =
2361 (struct wpi_start_scan *)(desc + 1);
2362 DPRINTF(sc, WPI_DEBUG_SCAN,
2363 "%s: scanning channel %d status %x\n",
2364 __func__, scan->chan, le32toh(scan->status));
2371 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2372 BUS_DMASYNC_POSTREAD);
2374 struct wpi_stop_scan *scan =
2375 (struct wpi_stop_scan *)(desc + 1);
2377 DPRINTF(sc, WPI_DEBUG_SCAN,
2378 "scan finished nchan=%d status=%d chan=%d\n",
2379 scan->nchan, scan->status, scan->chan);
2382 callout_stop(&sc->scan_timeout);
2383 WPI_RXON_UNLOCK(sc);
2384 if (scan->status == WPI_SCAN_ABORTED)
2385 ieee80211_cancel_scan(vap);
2387 ieee80211_scan_next(vap);
2392 if (sc->rxq.cur % 8 == 0) {
2393 /* Tell the firmware what we have processed. */
2394 sc->sc_update_rx_ring(sc);
2400 * Process an INT_WAKEUP interrupt raised when the microcontroller wakes up
2401 * from power-down sleep mode.
2404 wpi_wakeup_intr(struct wpi_softc *sc)
2408 DPRINTF(sc, WPI_DEBUG_PWRSAVE,
2409 "%s: ucode wakeup from power-down sleep\n", __func__);
2411 /* Wakeup RX and TX rings. */
2412 if (sc->rxq.update) {
2414 wpi_update_rx_ring(sc);
2417 for (qid = 0; qid < WPI_DRV_NTXQUEUES; qid++) {
2418 struct wpi_tx_ring *ring = &sc->txq[qid];
2422 wpi_update_tx_ring(sc, ring);
2425 WPI_CLRBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ);
2430 * This function prints firmware registers
2434 wpi_debug_registers(struct wpi_softc *sc)
2437 static const uint32_t csr_tbl[] = {
2454 static const uint32_t prph_tbl[] = {
2461 DPRINTF(sc, WPI_DEBUG_REGISTER,"%s","\n");
2463 for (i = 0; i < nitems(csr_tbl); i++) {
2464 DPRINTF(sc, WPI_DEBUG_REGISTER, " %-18s: 0x%08x ",
2465 wpi_get_csr_string(csr_tbl[i]), WPI_READ(sc, csr_tbl[i]));
2467 if ((i + 1) % 2 == 0)
2468 DPRINTF(sc, WPI_DEBUG_REGISTER, "\n");
2470 DPRINTF(sc, WPI_DEBUG_REGISTER, "\n\n");
2472 if (wpi_nic_lock(sc) == 0) {
2473 for (i = 0; i < nitems(prph_tbl); i++) {
2474 DPRINTF(sc, WPI_DEBUG_REGISTER, " %-18s: 0x%08x ",
2475 wpi_get_prph_string(prph_tbl[i]),
2476 wpi_prph_read(sc, prph_tbl[i]));
2478 if ((i + 1) % 2 == 0)
2479 DPRINTF(sc, WPI_DEBUG_REGISTER, "\n");
2481 DPRINTF(sc, WPI_DEBUG_REGISTER, "\n");
2484 DPRINTF(sc, WPI_DEBUG_REGISTER,
2485 "Cannot access internal registers.\n");
2491 * Dump the error log of the firmware when a firmware panic occurs. Although
2492 * we can't debug the firmware because it is neither open source nor free, it
2493 * can help us to identify certain classes of problems.
2496 wpi_fatal_intr(struct wpi_softc *sc)
2498 struct wpi_fw_dump dump;
2499 uint32_t i, offset, count;
2501 /* Check that the error log address is valid. */
2502 if (sc->errptr < WPI_FW_DATA_BASE ||
2503 sc->errptr + sizeof (dump) >
2504 WPI_FW_DATA_BASE + WPI_FW_DATA_MAXSZ) {
2505 printf("%s: bad firmware error log address 0x%08x\n", __func__,
2509 if (wpi_nic_lock(sc) != 0) {
2510 printf("%s: could not read firmware error log\n", __func__);
2513 /* Read number of entries in the log. */
2514 count = wpi_mem_read(sc, sc->errptr);
2515 if (count == 0 || count * sizeof (dump) > WPI_FW_DATA_MAXSZ) {
2516 printf("%s: invalid count field (count = %u)\n", __func__,
2521 /* Skip "count" field. */
2522 offset = sc->errptr + sizeof (uint32_t);
2523 printf("firmware error log (count = %u):\n", count);
2524 for (i = 0; i < count; i++) {
2525 wpi_mem_read_region_4(sc, offset, (uint32_t *)&dump,
2526 sizeof (dump) / sizeof (uint32_t));
2528 printf(" error type = \"%s\" (0x%08X)\n",
2529 (dump.desc < nitems(wpi_fw_errmsg)) ?
2530 wpi_fw_errmsg[dump.desc] : "UNKNOWN",
2532 printf(" error data = 0x%08X\n",
2534 printf(" branch link = 0x%08X%08X\n",
2535 dump.blink[0], dump.blink[1]);
2536 printf(" interrupt link = 0x%08X%08X\n",
2537 dump.ilink[0], dump.ilink[1]);
2538 printf(" time = %u\n", dump.time);
2540 offset += sizeof (dump);
2543 /* Dump driver status (TX and RX rings) while we're here. */
2544 printf("driver status:\n");
2546 for (i = 0; i < WPI_DRV_NTXQUEUES; i++) {
2547 struct wpi_tx_ring *ring = &sc->txq[i];
2548 printf(" tx ring %2d: qid=%-2d cur=%-3d queued=%-3d\n",
2549 i, ring->qid, ring->cur, ring->queued);
2552 printf(" rx ring: cur=%d\n", sc->rxq.cur);
2558 struct wpi_softc *sc = arg;
2559 struct ifnet *ifp = sc->sc_ifp;
2564 /* Disable interrupts. */
2565 WPI_WRITE(sc, WPI_INT_MASK, 0);
2567 r1 = WPI_READ(sc, WPI_INT);
2569 if (r1 == 0xffffffff || (r1 & 0xfffffff0) == 0xa5a5a5a0)
2570 goto end; /* Hardware gone! */
2572 r2 = WPI_READ(sc, WPI_FH_INT);
2574 DPRINTF(sc, WPI_DEBUG_INTR, "%s: reg1=0x%08x reg2=0x%08x\n", __func__,
2577 if (r1 == 0 && r2 == 0)
2578 goto done; /* Interrupt not for us. */
2580 /* Acknowledge interrupts. */
2581 WPI_WRITE(sc, WPI_INT, r1);
2582 WPI_WRITE(sc, WPI_FH_INT, r2);
2584 if (r1 & (WPI_INT_SW_ERR | WPI_INT_HW_ERR)) {
2585 device_printf(sc->sc_dev, "fatal firmware error\n");
2587 wpi_debug_registers(sc);
2590 DPRINTF(sc, WPI_DEBUG_HW,
2591 "(%s)\n", (r1 & WPI_INT_SW_ERR) ? "(Software Error)" :
2592 "(Hardware Error)");
2593 taskqueue_enqueue(sc->sc_tq, &sc->sc_reinittask);
2597 if ((r1 & (WPI_INT_FH_RX | WPI_INT_SW_RX)) ||
2598 (r2 & WPI_FH_INT_RX))
2601 if (r1 & WPI_INT_ALIVE)
2602 wakeup(sc); /* Firmware is alive. */
2604 if (r1 & WPI_INT_WAKEUP)
2605 wpi_wakeup_intr(sc);
2608 /* Re-enable interrupts. */
2609 if (ifp->if_flags & IFF_UP)
2610 WPI_WRITE(sc, WPI_INT_MASK, WPI_INT_MASK_DEF);
2612 end: WPI_UNLOCK(sc);
2616 wpi_cmd2(struct wpi_softc *sc, struct wpi_buf *buf)
2618 struct ifnet *ifp = sc->sc_ifp;
2619 struct ieee80211_frame *wh;
2620 struct wpi_tx_cmd *cmd;
2621 struct wpi_tx_data *data;
2622 struct wpi_tx_desc *desc;
2623 struct wpi_tx_ring *ring;
2625 bus_dma_segment_t *seg, segs[WPI_MAX_SCATTER];
2626 int error, i, hdrlen, nsegs, totlen, pad;
2630 KASSERT(buf->size <= sizeof(buf->data), ("buffer overflow"));
2632 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
2634 if (sc->txq_active == 0) {
2635 /* wpi_stop() was called */
2640 wh = mtod(buf->m, struct ieee80211_frame *);
2641 hdrlen = ieee80211_anyhdrsize(wh);
2642 totlen = buf->m->m_pkthdr.len;
2645 /* First segment length must be a multiple of 4. */
2646 pad = 4 - (hdrlen & 3);
2650 ring = &sc->txq[buf->ac];
2651 desc = &ring->desc[ring->cur];
2652 data = &ring->data[ring->cur];
2654 /* Prepare TX firmware command. */
2655 cmd = &ring->cmd[ring->cur];
2656 cmd->code = buf->code;
2658 cmd->qid = ring->qid;
2659 cmd->idx = ring->cur;
2661 memcpy(cmd->data, buf->data, buf->size);
2663 /* Save and trim IEEE802.11 header. */
2664 memcpy((uint8_t *)(cmd->data + buf->size), wh, hdrlen);
2665 m_adj(buf->m, hdrlen);
2667 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, buf->m,
2668 segs, &nsegs, BUS_DMA_NOWAIT);
2669 if (error != 0 && error != EFBIG) {
2670 device_printf(sc->sc_dev,
2671 "%s: can't map mbuf (error %d)\n", __func__, error);
2675 /* Too many DMA segments, linearize mbuf. */
2676 m1 = m_collapse(buf->m, M_NOWAIT, WPI_MAX_SCATTER - 1);
2678 device_printf(sc->sc_dev,
2679 "%s: could not defrag mbuf\n", __func__);
2685 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map,
2686 buf->m, segs, &nsegs, BUS_DMA_NOWAIT);
2688 device_printf(sc->sc_dev,
2689 "%s: can't map mbuf (error %d)\n", __func__,
2695 KASSERT(nsegs < WPI_MAX_SCATTER,
2696 ("too many DMA segments, nsegs (%d) should be less than %d",
2697 nsegs, WPI_MAX_SCATTER));
2702 DPRINTF(sc, WPI_DEBUG_XMIT, "%s: qid %d idx %d len %d nsegs %d\n",
2703 __func__, ring->qid, ring->cur, totlen, nsegs);
2705 /* Fill TX descriptor. */
2706 desc->nsegs = WPI_PAD32(totlen + pad) << 4 | (1 + nsegs);
2707 /* First DMA segment is used by the TX command. */
2708 desc->segs[0].addr = htole32(data->cmd_paddr);
2709 desc->segs[0].len = htole32(4 + buf->size + hdrlen + pad);
2710 /* Other DMA segments are for data payload. */
2712 for (i = 1; i <= nsegs; i++) {
2713 desc->segs[i].addr = htole32(seg->ds_addr);
2714 desc->segs[i].len = htole32(seg->ds_len);
2718 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
2719 bus_dmamap_sync(ring->data_dmat, ring->cmd_dma.map,
2720 BUS_DMASYNC_PREWRITE);
2721 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
2722 BUS_DMASYNC_PREWRITE);
2725 ring->cur = (ring->cur + 1) % WPI_TX_RING_COUNT;
2726 sc->sc_update_tx_ring(sc, ring);
2728 if (ring->qid < WPI_CMD_QUEUE_NUM) {
2729 /* Mark TX ring as full if we reach a certain threshold. */
2730 WPI_TXQ_STATE_LOCK(sc);
2731 if (++ring->queued > WPI_TX_RING_HIMARK) {
2732 sc->qfullmsk |= 1 << ring->qid;
2734 IF_LOCK(&ifp->if_snd);
2735 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
2736 IF_UNLOCK(&ifp->if_snd);
2739 callout_reset(&sc->tx_timeout, 5*hz, wpi_tx_timeout, sc);
2740 WPI_TXQ_STATE_UNLOCK(sc);
2743 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
2749 fail: m_freem(buf->m);
2751 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
2759 * Construct the data packet for a transmit buffer.
2762 wpi_tx_data(struct wpi_softc *sc, struct mbuf *m, struct ieee80211_node *ni)
2764 const struct ieee80211_txparam *tp;
2765 struct ieee80211vap *vap = ni->ni_vap;
2766 struct ieee80211com *ic = ni->ni_ic;
2767 struct wpi_node *wn = WPI_NODE(ni);
2768 struct ieee80211_channel *chan;
2769 struct ieee80211_frame *wh;
2770 struct ieee80211_key *k = NULL;
2771 struct wpi_buf tx_data;
2772 struct wpi_cmd_data *tx = (struct wpi_cmd_data *)&tx_data.data;
2776 int ac, error, swcrypt, rate, ismcast, totlen;
2778 wh = mtod(m, struct ieee80211_frame *);
2779 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
2780 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1);
2782 /* Select EDCA Access Category and TX ring for this frame. */
2783 if (IEEE80211_QOS_HAS_SEQ(wh)) {
2784 qos = ((const struct ieee80211_qosframe *)wh)->i_qos[0];
2785 tid = qos & IEEE80211_QOS_TID;
2790 ac = M_WME_GETAC(m);
2792 chan = (ni->ni_chan != IEEE80211_CHAN_ANYC) ?
2793 ni->ni_chan : ic->ic_curchan;
2794 tp = &vap->iv_txparms[ieee80211_chan2mode(chan)];
2796 /* Choose a TX rate index. */
2797 if (type == IEEE80211_FC0_TYPE_MGT)
2798 rate = tp->mgmtrate;
2800 rate = tp->mcastrate;
2801 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE)
2802 rate = tp->ucastrate;
2803 else if (m->m_flags & M_EAPOL)
2804 rate = tp->mgmtrate;
2806 /* XXX pass pktlen */
2807 (void) ieee80211_ratectl_rate(ni, NULL, 0);
2808 rate = ni->ni_txrate;
2811 /* Encrypt the frame if need be. */
2812 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
2813 /* Retrieve key for TX. */
2814 k = ieee80211_crypto_encap(ni, m);
2819 swcrypt = k->wk_flags & IEEE80211_KEY_SWCRYPT;
2821 /* 802.11 header may have moved. */
2822 wh = mtod(m, struct ieee80211_frame *);
2824 totlen = m->m_pkthdr.len;
2826 if (ieee80211_radiotap_active_vap(vap)) {
2827 struct wpi_tx_radiotap_header *tap = &sc->sc_txtap;
2830 tap->wt_rate = rate;
2832 tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP;
2834 ieee80211_radiotap_tx(vap, m);
2839 /* Unicast frame, check if an ACK is expected. */
2840 if (!qos || (qos & IEEE80211_QOS_ACKPOLICY) !=
2841 IEEE80211_QOS_ACKPOLICY_NOACK)
2842 flags |= WPI_TX_NEED_ACK;
2845 if (!IEEE80211_QOS_HAS_SEQ(wh))
2846 flags |= WPI_TX_AUTO_SEQ;
2847 if (wh->i_fc[1] & IEEE80211_FC1_MORE_FRAG)
2848 flags |= WPI_TX_MORE_FRAG; /* Cannot happen yet. */
2850 /* Check if frame must be protected using RTS/CTS or CTS-to-self. */
2852 /* NB: Group frames are sent using CCK in 802.11b/g. */
2853 if (totlen + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) {
2854 flags |= WPI_TX_NEED_RTS;
2855 } else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
2856 WPI_RATE_IS_OFDM(rate)) {
2857 if (ic->ic_protmode == IEEE80211_PROT_CTSONLY)
2858 flags |= WPI_TX_NEED_CTS;
2859 else if (ic->ic_protmode == IEEE80211_PROT_RTSCTS)
2860 flags |= WPI_TX_NEED_RTS;
2863 if (flags & (WPI_TX_NEED_RTS | WPI_TX_NEED_CTS))
2864 flags |= WPI_TX_FULL_TXOP;
2867 memset(tx, 0, sizeof (struct wpi_cmd_data));
2868 if (type == IEEE80211_FC0_TYPE_MGT) {
2869 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
2871 /* Tell HW to set timestamp in probe responses. */
2872 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP)
2873 flags |= WPI_TX_INSERT_TSTAMP;
2874 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ ||
2875 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ)
2876 tx->timeout = htole16(3);
2878 tx->timeout = htole16(2);
2881 if (ismcast || type != IEEE80211_FC0_TYPE_DATA)
2882 tx->id = WPI_ID_BROADCAST;
2884 if (wn->id == WPI_ID_UNDEFINED) {
2885 device_printf(sc->sc_dev,
2886 "%s: undefined node id\n", __func__);
2894 if (k != NULL && !swcrypt) {
2895 switch (k->wk_cipher->ic_cipher) {
2896 case IEEE80211_CIPHER_AES_CCM:
2897 tx->security = WPI_CIPHER_CCMP;
2904 memcpy(tx->key, k->wk_key, k->wk_keylen);
2907 tx->len = htole16(totlen);
2908 tx->flags = htole32(flags);
2909 tx->plcp = rate2plcp(rate);
2911 tx->lifetime = htole32(WPI_LIFETIME_INFINITE);
2912 tx->ofdm_mask = 0xff;
2913 tx->cck_mask = 0x0f;
2915 tx->data_ntries = tp->maxretry;
2919 tx_data.size = sizeof(struct wpi_cmd_data);
2920 tx_data.code = WPI_CMD_TX_DATA;
2923 return wpi_cmd2(sc, &tx_data);
2930 wpi_tx_data_raw(struct wpi_softc *sc, struct mbuf *m,
2931 struct ieee80211_node *ni, const struct ieee80211_bpf_params *params)
2933 struct ieee80211vap *vap = ni->ni_vap;
2934 struct ieee80211_key *k = NULL;
2935 struct ieee80211_frame *wh;
2936 struct wpi_buf tx_data;
2937 struct wpi_cmd_data *tx = (struct wpi_cmd_data *)&tx_data.data;
2940 int ac, rate, swcrypt, totlen;
2942 wh = mtod(m, struct ieee80211_frame *);
2943 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
2945 ac = params->ibp_pri & 3;
2947 /* Choose a TX rate index. */
2948 rate = params->ibp_rate0;
2951 if (!IEEE80211_QOS_HAS_SEQ(wh))
2952 flags |= WPI_TX_AUTO_SEQ;
2953 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
2954 flags |= WPI_TX_NEED_ACK;
2955 if (params->ibp_flags & IEEE80211_BPF_RTS)
2956 flags |= WPI_TX_NEED_RTS;
2957 if (params->ibp_flags & IEEE80211_BPF_CTS)
2958 flags |= WPI_TX_NEED_CTS;
2959 if (flags & (WPI_TX_NEED_RTS | WPI_TX_NEED_CTS))
2960 flags |= WPI_TX_FULL_TXOP;
2962 /* Encrypt the frame if need be. */
2963 if (params->ibp_flags & IEEE80211_BPF_CRYPTO) {
2964 /* Retrieve key for TX. */
2965 k = ieee80211_crypto_encap(ni, m);
2970 swcrypt = k->wk_flags & IEEE80211_KEY_SWCRYPT;
2972 /* 802.11 header may have moved. */
2973 wh = mtod(m, struct ieee80211_frame *);
2975 totlen = m->m_pkthdr.len;
2977 if (ieee80211_radiotap_active_vap(vap)) {
2978 struct wpi_tx_radiotap_header *tap = &sc->sc_txtap;
2981 tap->wt_rate = rate;
2982 if (params->ibp_flags & IEEE80211_BPF_CRYPTO)
2983 tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP;
2985 ieee80211_radiotap_tx(vap, m);
2988 memset(tx, 0, sizeof (struct wpi_cmd_data));
2989 if (type == IEEE80211_FC0_TYPE_MGT) {
2990 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
2992 /* Tell HW to set timestamp in probe responses. */
2993 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP)
2994 flags |= WPI_TX_INSERT_TSTAMP;
2995 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ ||
2996 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ)
2997 tx->timeout = htole16(3);
2999 tx->timeout = htole16(2);
3002 if (k != NULL && !swcrypt) {
3003 switch (k->wk_cipher->ic_cipher) {
3004 case IEEE80211_CIPHER_AES_CCM:
3005 tx->security = WPI_CIPHER_CCMP;
3012 memcpy(tx->key, k->wk_key, k->wk_keylen);
3015 tx->len = htole16(totlen);
3016 tx->flags = htole32(flags);
3017 tx->plcp = rate2plcp(rate);
3018 tx->id = WPI_ID_BROADCAST;
3019 tx->lifetime = htole32(WPI_LIFETIME_INFINITE);
3020 tx->rts_ntries = params->ibp_try1;
3021 tx->data_ntries = params->ibp_try0;
3025 tx_data.size = sizeof(struct wpi_cmd_data);
3026 tx_data.code = WPI_CMD_TX_DATA;
3029 return wpi_cmd2(sc, &tx_data);
3033 wpi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
3034 const struct ieee80211_bpf_params *params)
3036 struct ieee80211com *ic = ni->ni_ic;
3037 struct ifnet *ifp = ic->ic_ifp;
3038 struct wpi_softc *sc = ic->ic_softc;
3041 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
3043 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
3044 ieee80211_free_node(ni);
3050 if (params == NULL) {
3052 * Legacy path; interpret frame contents to decide
3053 * precisely how to send the frame.
3055 error = wpi_tx_data(sc, m, ni);
3058 * Caller supplied explicit parameters to use in
3059 * sending the frame.
3061 error = wpi_tx_data_raw(sc, m, ni, params);
3066 /* NB: m is reclaimed on tx failure */
3067 ieee80211_free_node(ni);
3068 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
3070 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
3075 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
3081 * Process data waiting to be sent on the IFNET output queue
3084 wpi_start(struct ifnet *ifp)
3086 struct wpi_softc *sc = ifp->if_softc;
3087 struct ieee80211_node *ni;
3091 DPRINTF(sc, WPI_DEBUG_XMIT, "%s: called\n", __func__);
3094 IF_LOCK(&ifp->if_snd);
3095 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0 ||
3096 (ifp->if_drv_flags & IFF_DRV_OACTIVE)) {
3097 IF_UNLOCK(&ifp->if_snd);
3100 IF_UNLOCK(&ifp->if_snd);
3102 IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
3105 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
3106 if (wpi_tx_data(sc, m, ni) != 0) {
3107 ieee80211_free_node(ni);
3108 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
3112 DPRINTF(sc, WPI_DEBUG_XMIT, "%s: done\n", __func__);
3117 wpi_start_task(void *arg0, int pending)
3119 struct wpi_softc *sc = arg0;
3120 struct ifnet *ifp = sc->sc_ifp;
3126 wpi_watchdog_rfkill(void *arg)
3128 struct wpi_softc *sc = arg;
3129 struct ifnet *ifp = sc->sc_ifp;
3130 struct ieee80211com *ic = ifp->if_l2com;
3132 DPRINTF(sc, WPI_DEBUG_WATCHDOG, "RFkill Watchdog: tick\n");
3134 /* No need to lock firmware memory. */
3135 if ((wpi_prph_read(sc, WPI_APMG_RFKILL) & 0x1) == 0) {
3136 /* Radio kill switch is still off. */
3137 callout_reset(&sc->watchdog_rfkill, hz, wpi_watchdog_rfkill,
3140 ieee80211_runtask(ic, &sc->sc_radioon_task);
3144 wpi_scan_timeout(void *arg)
3146 struct wpi_softc *sc = arg;
3147 struct ifnet *ifp = sc->sc_ifp;
3149 if_printf(ifp, "scan timeout\n");
3150 taskqueue_enqueue(sc->sc_tq, &sc->sc_reinittask);
3154 wpi_tx_timeout(void *arg)
3156 struct wpi_softc *sc = arg;
3157 struct ifnet *ifp = sc->sc_ifp;
3159 if_printf(ifp, "device timeout\n");
3160 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
3161 taskqueue_enqueue(sc->sc_tq, &sc->sc_reinittask);
3165 wpi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
3167 struct wpi_softc *sc = ifp->if_softc;
3168 struct ieee80211com *ic = ifp->if_l2com;
3169 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3170 struct ifreq *ifr = (struct ifreq *) data;
3175 error = ether_ioctl(ifp, cmd, data);
3178 if (ifp->if_flags & IFF_UP) {
3181 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0 &&
3183 ieee80211_stop(vap);
3184 } else if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0)
3188 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
3198 * Send a command to the firmware.
3201 wpi_cmd(struct wpi_softc *sc, int code, const void *buf, size_t size,
3204 struct wpi_tx_ring *ring = &sc->txq[WPI_CMD_QUEUE_NUM];
3205 struct wpi_tx_desc *desc;
3206 struct wpi_tx_data *data;
3207 struct wpi_tx_cmd *cmd;
3214 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
3216 if (sc->txq_active == 0) {
3217 /* wpi_stop() was called */
3223 WPI_LOCK_ASSERT(sc);
3225 DPRINTF(sc, WPI_DEBUG_CMD, "%s: cmd %s size %zu async %d\n",
3226 __func__, wpi_cmd_str(code), size, async);
3228 desc = &ring->desc[ring->cur];
3229 data = &ring->data[ring->cur];
3232 if (size > sizeof cmd->data) {
3233 /* Command is too large to fit in a descriptor. */
3234 if (totlen > MCLBYTES) {
3238 m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE);
3243 cmd = mtod(m, struct wpi_tx_cmd *);
3244 error = bus_dmamap_load(ring->data_dmat, data->map, cmd,
3245 totlen, wpi_dma_map_addr, &paddr, BUS_DMA_NOWAIT);
3252 cmd = &ring->cmd[ring->cur];
3253 paddr = data->cmd_paddr;
3258 cmd->qid = ring->qid;
3259 cmd->idx = ring->cur;
3260 memcpy(cmd->data, buf, size);
3262 desc->nsegs = 1 + (WPI_PAD32(size) << 4);
3263 desc->segs[0].addr = htole32(paddr);
3264 desc->segs[0].len = htole32(totlen);
3266 if (size > sizeof cmd->data) {
3267 bus_dmamap_sync(ring->data_dmat, data->map,
3268 BUS_DMASYNC_PREWRITE);
3270 bus_dmamap_sync(ring->data_dmat, ring->cmd_dma.map,
3271 BUS_DMASYNC_PREWRITE);
3273 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
3274 BUS_DMASYNC_PREWRITE);
3276 /* Kick command ring. */
3277 ring->cur = (ring->cur + 1) % WPI_TX_RING_COUNT;
3278 sc->sc_update_tx_ring(sc, ring);
3280 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
3287 return mtx_sleep(cmd, &sc->sc_mtx, PCATCH, "wpicmd", hz);
3289 fail: DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
3297 * Configure HW multi-rate retries.
3300 wpi_mrr_setup(struct wpi_softc *sc)
3302 struct ifnet *ifp = sc->sc_ifp;
3303 struct ieee80211com *ic = ifp->if_l2com;
3304 struct wpi_mrr_setup mrr;
3307 /* CCK rates (not used with 802.11a). */
3308 for (i = WPI_RIDX_CCK1; i <= WPI_RIDX_CCK11; i++) {
3309 mrr.rates[i].flags = 0;
3310 mrr.rates[i].plcp = wpi_ridx_to_plcp[i];
3311 /* Fallback to the immediate lower CCK rate (if any.) */
3313 (i == WPI_RIDX_CCK1) ? WPI_RIDX_CCK1 : i - 1;
3314 /* Try twice at this rate before falling back to "next". */
3315 mrr.rates[i].ntries = WPI_NTRIES_DEFAULT;
3317 /* OFDM rates (not used with 802.11b). */
3318 for (i = WPI_RIDX_OFDM6; i <= WPI_RIDX_OFDM54; i++) {
3319 mrr.rates[i].flags = 0;
3320 mrr.rates[i].plcp = wpi_ridx_to_plcp[i];
3321 /* Fallback to the immediate lower rate (if any.) */
3322 /* We allow fallback from OFDM/6 to CCK/2 in 11b/g mode. */
3323 mrr.rates[i].next = (i == WPI_RIDX_OFDM6) ?
3324 ((ic->ic_curmode == IEEE80211_MODE_11A) ?
3325 WPI_RIDX_OFDM6 : WPI_RIDX_CCK2) :
3327 /* Try twice at this rate before falling back to "next". */
3328 mrr.rates[i].ntries = WPI_NTRIES_DEFAULT;
3330 /* Setup MRR for control frames. */
3331 mrr.which = htole32(WPI_MRR_CTL);
3332 error = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof mrr, 0);
3334 device_printf(sc->sc_dev,
3335 "could not setup MRR for control frames\n");
3338 /* Setup MRR for data frames. */
3339 mrr.which = htole32(WPI_MRR_DATA);
3340 error = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof mrr, 0);
3342 device_printf(sc->sc_dev,
3343 "could not setup MRR for data frames\n");
3350 wpi_add_node(struct wpi_softc *sc, struct ieee80211_node *ni)
3352 struct ieee80211com *ic = ni->ni_ic;
3353 struct wpi_vap *wvp = WPI_VAP(ni->ni_vap);
3354 struct wpi_node *wn = WPI_NODE(ni);
3355 struct wpi_node_info node;
3358 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3360 if (wn->id == WPI_ID_UNDEFINED)
3363 memset(&node, 0, sizeof node);
3364 IEEE80211_ADDR_COPY(node.macaddr, ni->ni_macaddr);
3366 node.plcp = (ic->ic_curmode == IEEE80211_MODE_11A) ?
3367 wpi_ridx_to_plcp[WPI_RIDX_OFDM6] : wpi_ridx_to_plcp[WPI_RIDX_CCK1];
3368 node.action = htole32(WPI_ACTION_SET_RATE);
3369 node.antenna = WPI_ANTENNA_BOTH;
3371 DPRINTF(sc, WPI_DEBUG_NODE, "%s: adding node %d (%s)\n", __func__,
3372 wn->id, ether_sprintf(ni->ni_macaddr));
3374 error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 1);
3376 device_printf(sc->sc_dev,
3377 "%s: wpi_cmd() call failed with error code %d\n", __func__,
3382 if (wvp->wv_gtk != 0) {
3383 error = wpi_set_global_keys(ni);
3385 device_printf(sc->sc_dev,
3386 "%s: error while setting global keys\n", __func__);
3395 * Broadcast node is used to send group-addressed and management frames.
3398 wpi_add_broadcast_node(struct wpi_softc *sc, int async)
3400 struct ifnet *ifp = sc->sc_ifp;
3401 struct ieee80211com *ic = ifp->if_l2com;
3402 struct wpi_node_info node;
3404 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3406 memset(&node, 0, sizeof node);
3407 IEEE80211_ADDR_COPY(node.macaddr, ifp->if_broadcastaddr);
3408 node.id = WPI_ID_BROADCAST;
3409 node.plcp = (ic->ic_curmode == IEEE80211_MODE_11A) ?
3410 wpi_ridx_to_plcp[WPI_RIDX_OFDM6] : wpi_ridx_to_plcp[WPI_RIDX_CCK1];
3411 node.action = htole32(WPI_ACTION_SET_RATE);
3412 node.antenna = WPI_ANTENNA_BOTH;
3414 DPRINTF(sc, WPI_DEBUG_NODE, "%s: adding broadcast node\n", __func__);
3416 return wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, async);
3420 wpi_add_sta_node(struct wpi_softc *sc, struct ieee80211_node *ni)
3422 struct wpi_node *wn = WPI_NODE(ni);
3425 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3427 wn->id = wpi_add_node_entry_sta(sc);
3429 if ((error = wpi_add_node(sc, ni)) != 0) {
3430 wpi_del_node_entry(sc, wn->id);
3431 wn->id = WPI_ID_UNDEFINED;
3439 wpi_add_ibss_node(struct wpi_softc *sc, struct ieee80211_node *ni)
3441 struct wpi_node *wn = WPI_NODE(ni);
3444 KASSERT(wn->id == WPI_ID_UNDEFINED,
3445 ("the node %d was added before", wn->id));
3447 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3449 if ((wn->id = wpi_add_node_entry_adhoc(sc)) == WPI_ID_UNDEFINED) {
3450 device_printf(sc->sc_dev, "%s: h/w table is full\n", __func__);
3454 if ((error = wpi_add_node(sc, ni)) != 0) {
3455 wpi_del_node_entry(sc, wn->id);
3456 wn->id = WPI_ID_UNDEFINED;
3464 wpi_del_node(struct wpi_softc *sc, struct ieee80211_node *ni)
3466 struct wpi_node *wn = WPI_NODE(ni);
3467 struct wpi_cmd_del_node node;
3470 KASSERT(wn->id != WPI_ID_UNDEFINED, ("undefined node id passed"));
3472 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3474 memset(&node, 0, sizeof node);
3475 IEEE80211_ADDR_COPY(node.macaddr, ni->ni_macaddr);
3478 DPRINTF(sc, WPI_DEBUG_NODE, "%s: deleting node %d (%s)\n", __func__,
3479 wn->id, ether_sprintf(ni->ni_macaddr));
3481 error = wpi_cmd(sc, WPI_CMD_DEL_NODE, &node, sizeof node, 1);
3483 device_printf(sc->sc_dev,
3484 "%s: could not delete node %u, error %d\n", __func__,
3490 wpi_updateedca(struct ieee80211com *ic)
3492 #define WPI_EXP2(x) ((1 << (x)) - 1) /* CWmin = 2^ECWmin - 1 */
3493 struct wpi_softc *sc = ic->ic_softc;
3494 struct wpi_edca_params cmd;
3497 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
3499 memset(&cmd, 0, sizeof cmd);
3500 cmd.flags = htole32(WPI_EDCA_UPDATE);
3501 for (aci = 0; aci < WME_NUM_AC; aci++) {
3502 const struct wmeParams *ac =
3503 &ic->ic_wme.wme_chanParams.cap_wmeParams[aci];
3504 cmd.ac[aci].aifsn = ac->wmep_aifsn;
3505 cmd.ac[aci].cwmin = htole16(WPI_EXP2(ac->wmep_logcwmin));
3506 cmd.ac[aci].cwmax = htole16(WPI_EXP2(ac->wmep_logcwmax));
3507 cmd.ac[aci].txoplimit =
3508 htole16(IEEE80211_TXOP_TO_US(ac->wmep_txopLimit));
3510 DPRINTF(sc, WPI_DEBUG_EDCA,
3511 "setting WME for queue %d aifsn=%d cwmin=%d cwmax=%d "
3512 "txoplimit=%d\n", aci, cmd.ac[aci].aifsn,
3513 cmd.ac[aci].cwmin, cmd.ac[aci].cwmax,
3514 cmd.ac[aci].txoplimit);
3516 error = wpi_cmd(sc, WPI_CMD_EDCA_PARAMS, &cmd, sizeof cmd, 1);
3518 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
3525 wpi_set_promisc(struct wpi_softc *sc)
3527 struct ifnet *ifp = sc->sc_ifp;
3528 struct ieee80211com *ic = ifp->if_l2com;
3529 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3530 uint32_t promisc_filter;
3532 promisc_filter = WPI_FILTER_CTL;
3533 if (vap != NULL && vap->iv_opmode != IEEE80211_M_HOSTAP)
3534 promisc_filter |= WPI_FILTER_PROMISC;
3536 if (ifp->if_flags & IFF_PROMISC)
3537 sc->rxon.filter |= htole32(promisc_filter);
3539 sc->rxon.filter &= ~htole32(promisc_filter);
3543 wpi_update_promisc(struct ieee80211com *ic)
3545 struct wpi_softc *sc = ic->ic_softc;
3548 wpi_set_promisc(sc);
3550 if (wpi_send_rxon(sc, 1, 1) != 0) {
3551 device_printf(sc->sc_dev, "%s: could not send RXON\n",
3554 WPI_RXON_UNLOCK(sc);
3558 wpi_update_mcast(struct ieee80211com *ic)
3564 wpi_set_led(struct wpi_softc *sc, uint8_t which, uint8_t off, uint8_t on)
3566 struct wpi_cmd_led led;
3568 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3571 led.unit = htole32(100000); /* on/off in unit of 100ms */
3574 (void)wpi_cmd(sc, WPI_CMD_SET_LED, &led, sizeof led, 1);
3578 wpi_set_timing(struct wpi_softc *sc, struct ieee80211_node *ni)
3580 struct wpi_cmd_timing cmd;
3583 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3585 memset(&cmd, 0, sizeof cmd);
3586 memcpy(&cmd.tstamp, ni->ni_tstamp.data, sizeof (uint64_t));
3587 cmd.bintval = htole16(ni->ni_intval);
3588 cmd.lintval = htole16(10);
3590 /* Compute remaining time until next beacon. */
3591 val = (uint64_t)ni->ni_intval * IEEE80211_DUR_TU;
3592 mod = le64toh(cmd.tstamp) % val;
3593 cmd.binitval = htole32((uint32_t)(val - mod));
3595 DPRINTF(sc, WPI_DEBUG_RESET, "timing bintval=%u tstamp=%ju, init=%u\n",
3596 ni->ni_intval, le64toh(cmd.tstamp), (uint32_t)(val - mod));
3598 return wpi_cmd(sc, WPI_CMD_TIMING, &cmd, sizeof cmd, 1);
3602 * This function is called periodically (every 60 seconds) to adjust output
3603 * power to temperature changes.
3606 wpi_power_calibration(struct wpi_softc *sc)
3610 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3612 /* Update sensor data. */
3613 temp = (int)WPI_READ(sc, WPI_UCODE_GP2);
3614 DPRINTF(sc, WPI_DEBUG_TEMP, "Temp in calibration is: %d\n", temp);
3616 /* Sanity-check read value. */
3617 if (temp < -260 || temp > 25) {
3618 /* This can't be correct, ignore. */
3619 DPRINTF(sc, WPI_DEBUG_TEMP,
3620 "out-of-range temperature reported: %d\n", temp);
3624 DPRINTF(sc, WPI_DEBUG_TEMP, "temperature %d->%d\n", sc->temp, temp);
3626 /* Adjust Tx power if need be. */
3627 if (abs(temp - sc->temp) <= 6)
3632 if (wpi_set_txpower(sc, 1) != 0) {
3633 /* just warn, too bad for the automatic calibration... */
3634 device_printf(sc->sc_dev,"could not adjust Tx power\n");
3639 * Set TX power for current channel.
3642 wpi_set_txpower(struct wpi_softc *sc, int async)
3644 struct wpi_power_group *group;
3645 struct wpi_cmd_txpower cmd;
3647 int idx, is_chan_5ghz, i;
3649 /* Retrieve current channel from last RXON. */
3650 chan = sc->rxon.chan;
3651 is_chan_5ghz = (sc->rxon.flags & htole32(WPI_RXON_24GHZ)) == 0;
3653 /* Find the TX power group to which this channel belongs. */
3655 for (group = &sc->groups[1]; group < &sc->groups[4]; group++)
3656 if (chan <= group->chan)
3659 group = &sc->groups[0];
3661 memset(&cmd, 0, sizeof cmd);
3662 cmd.band = is_chan_5ghz ? WPI_BAND_5GHZ : WPI_BAND_2GHZ;
3663 cmd.chan = htole16(chan);
3665 /* Set TX power for all OFDM and CCK rates. */
3666 for (i = 0; i <= WPI_RIDX_MAX ; i++) {
3667 /* Retrieve TX power for this channel/rate. */
3668 idx = wpi_get_power_index(sc, group, chan, is_chan_5ghz, i);
3670 cmd.rates[i].plcp = wpi_ridx_to_plcp[i];
3673 cmd.rates[i].rf_gain = wpi_rf_gain_5ghz[idx];
3674 cmd.rates[i].dsp_gain = wpi_dsp_gain_5ghz[idx];
3676 cmd.rates[i].rf_gain = wpi_rf_gain_2ghz[idx];
3677 cmd.rates[i].dsp_gain = wpi_dsp_gain_2ghz[idx];
3679 DPRINTF(sc, WPI_DEBUG_TEMP,
3680 "chan %d/ridx %d: power index %d\n", chan, i, idx);
3683 return wpi_cmd(sc, WPI_CMD_TXPOWER, &cmd, sizeof cmd, async);
3687 * Determine Tx power index for a given channel/rate combination.
3688 * This takes into account the regulatory information from EEPROM and the
3689 * current temperature.
3692 wpi_get_power_index(struct wpi_softc *sc, struct wpi_power_group *group,
3693 uint8_t chan, int is_chan_5ghz, int ridx)
3695 /* Fixed-point arithmetic division using a n-bit fractional part. */
3696 #define fdivround(a, b, n) \
3697 ((((1 << n) * (a)) / (b) + (1 << n) / 2) / (1 << n))
3699 /* Linear interpolation. */
3700 #define interpolate(x, x1, y1, x2, y2, n) \
3701 ((y1) + fdivround(((x) - (x1)) * ((y2) - (y1)), (x2) - (x1), n))
3703 struct wpi_power_sample *sample;
3706 /* Default TX power is group maximum TX power minus 3dB. */
3707 pwr = group->maxpwr / 2;
3709 /* Decrease TX power for highest OFDM rates to reduce distortion. */
3711 case WPI_RIDX_OFDM36:
3712 pwr -= is_chan_5ghz ? 5 : 0;
3714 case WPI_RIDX_OFDM48:
3715 pwr -= is_chan_5ghz ? 10 : 7;
3717 case WPI_RIDX_OFDM54:
3718 pwr -= is_chan_5ghz ? 12 : 9;
3722 /* Never exceed the channel maximum allowed TX power. */
3723 pwr = min(pwr, sc->maxpwr[chan]);
3725 /* Retrieve TX power index into gain tables from samples. */
3726 for (sample = group->samples; sample < &group->samples[3]; sample++)
3727 if (pwr > sample[1].power)
3729 /* Fixed-point linear interpolation using a 19-bit fractional part. */
3730 idx = interpolate(pwr, sample[0].power, sample[0].index,
3731 sample[1].power, sample[1].index, 19);
3734 * Adjust power index based on current temperature:
3735 * - if cooler than factory-calibrated: decrease output power
3736 * - if warmer than factory-calibrated: increase output power
3738 idx -= (sc->temp - group->temp) * 11 / 100;
3740 /* Decrease TX power for CCK rates (-5dB). */
3741 if (ridx >= WPI_RIDX_CCK1)
3744 /* Make sure idx stays in a valid range. */
3747 if (idx > WPI_MAX_PWR_INDEX)
3748 return WPI_MAX_PWR_INDEX;
3756 * Set STA mode power saving level (between 0 and 5).
3757 * Level 0 is CAM (Continuously Aware Mode), 5 is for maximum power saving.
3760 wpi_set_pslevel(struct wpi_softc *sc, uint8_t dtim, int level, int async)
3762 struct wpi_pmgt_cmd cmd;
3763 const struct wpi_pmgt *pmgt;
3764 uint32_t max, skip_dtim;
3768 DPRINTF(sc, WPI_DEBUG_PWRSAVE,
3769 "%s: dtim=%d, level=%d, async=%d\n",
3770 __func__, dtim, level, async);
3772 /* Select which PS parameters to use. */
3774 pmgt = &wpi_pmgt[0][level];
3776 pmgt = &wpi_pmgt[1][level];
3778 memset(&cmd, 0, sizeof cmd);
3780 if (level != 0) { /* not CAM */
3781 cmd.flags |= htole16(WPI_PS_ALLOW_SLEEP);
3782 sc->sc_flags |= WPI_PS_PATH;
3784 sc->sc_flags &= ~WPI_PS_PATH;
3786 /* Retrieve PCIe Active State Power Management (ASPM). */
3787 reg = pci_read_config(sc->sc_dev, sc->sc_cap_off + 0x10, 1);
3788 if (!(reg & 0x1)) /* L0s Entry disabled. */
3789 cmd.flags |= htole16(WPI_PS_PCI_PMGT);
3791 cmd.rxtimeout = htole32(pmgt->rxtimeout * IEEE80211_DUR_TU);
3792 cmd.txtimeout = htole32(pmgt->txtimeout * IEEE80211_DUR_TU);
3798 skip_dtim = pmgt->skip_dtim;
3800 if (skip_dtim != 0) {
3801 cmd.flags |= htole16(WPI_PS_SLEEP_OVER_DTIM);
3802 max = pmgt->intval[4];
3803 if (max == (uint32_t)-1)
3804 max = dtim * (skip_dtim + 1);
3805 else if (max > dtim)
3806 max = (max / dtim) * dtim;
3810 for (i = 0; i < 5; i++)
3811 cmd.intval[i] = htole32(MIN(max, pmgt->intval[i]));
3813 return wpi_cmd(sc, WPI_CMD_SET_POWER_MODE, &cmd, sizeof cmd, async);
3817 wpi_send_btcoex(struct wpi_softc *sc)
3819 struct wpi_bluetooth cmd;
3821 memset(&cmd, 0, sizeof cmd);
3822 cmd.flags = WPI_BT_COEX_MODE_4WIRE;
3823 cmd.lead_time = WPI_BT_LEAD_TIME_DEF;
3824 cmd.max_kill = WPI_BT_MAX_KILL_DEF;
3825 DPRINTF(sc, WPI_DEBUG_RESET, "%s: configuring bluetooth coexistence\n",
3827 return wpi_cmd(sc, WPI_CMD_BT_COEX, &cmd, sizeof(cmd), 0);
3831 wpi_send_rxon(struct wpi_softc *sc, int assoc, int async)
3836 WPI_RXON_LOCK_ASSERT(sc);
3838 if (assoc && wpi_check_bss_filter(sc) != 0) {
3839 struct wpi_assoc rxon_assoc;
3841 rxon_assoc.flags = sc->rxon.flags;
3842 rxon_assoc.filter = sc->rxon.filter;
3843 rxon_assoc.ofdm_mask = sc->rxon.ofdm_mask;
3844 rxon_assoc.cck_mask = sc->rxon.cck_mask;
3845 rxon_assoc.reserved = 0;
3847 error = wpi_cmd(sc, WPI_CMD_RXON_ASSOC, &rxon_assoc,
3848 sizeof (struct wpi_assoc), async);
3850 device_printf(sc->sc_dev,
3851 "RXON_ASSOC command failed, error %d\n", error);
3857 error = wpi_cmd(sc, WPI_CMD_RXON, &sc->rxon,
3858 sizeof (struct wpi_rxon), async);
3860 wpi_clear_node_table(sc);
3863 error = wpi_cmd(sc, WPI_CMD_RXON, &sc->rxon,
3864 sizeof (struct wpi_rxon), async);
3866 wpi_clear_node_table(sc);
3870 device_printf(sc->sc_dev,
3871 "RXON command failed, error %d\n", error);
3875 /* Add broadcast node. */
3876 error = wpi_add_broadcast_node(sc, async);
3878 device_printf(sc->sc_dev,
3879 "could not add broadcast node, error %d\n", error);
3884 /* Configuration has changed, set Tx power accordingly. */
3885 if ((error = wpi_set_txpower(sc, async)) != 0) {
3886 device_printf(sc->sc_dev,
3887 "%s: could not set TX power, error %d\n", __func__, error);
3895 * Configure the card to listen to a particular channel, this transisions the
3896 * card in to being able to receive frames from remote devices.
3899 wpi_config(struct wpi_softc *sc)
3901 struct ifnet *ifp = sc->sc_ifp;
3902 struct ieee80211com *ic = ifp->if_l2com;
3903 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3904 struct ieee80211_channel *c = ic->ic_curchan;
3907 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
3909 /* Set power saving level to CAM during initialization. */
3910 if ((error = wpi_set_pslevel(sc, 0, 0, 0)) != 0) {
3911 device_printf(sc->sc_dev,
3912 "%s: could not set power saving level\n", __func__);
3916 /* Configure bluetooth coexistence. */
3917 if ((error = wpi_send_btcoex(sc)) != 0) {
3918 device_printf(sc->sc_dev,
3919 "could not configure bluetooth coexistence\n");
3923 /* Configure adapter. */
3924 memset(&sc->rxon, 0, sizeof (struct wpi_rxon));
3925 IEEE80211_ADDR_COPY(sc->rxon.myaddr, vap->iv_myaddr);
3927 /* Set default channel. */
3928 sc->rxon.chan = ieee80211_chan2ieee(ic, c);
3929 sc->rxon.flags = htole32(WPI_RXON_TSF | WPI_RXON_CTS_TO_SELF);
3930 if (IEEE80211_IS_CHAN_2GHZ(c))
3931 sc->rxon.flags |= htole32(WPI_RXON_AUTO | WPI_RXON_24GHZ);
3933 sc->rxon.filter = WPI_FILTER_MULTICAST;
3934 switch (ic->ic_opmode) {
3935 case IEEE80211_M_STA:
3936 sc->rxon.mode = WPI_MODE_STA;
3938 case IEEE80211_M_IBSS:
3939 sc->rxon.mode = WPI_MODE_IBSS;
3940 sc->rxon.filter |= WPI_FILTER_BEACON;
3942 case IEEE80211_M_HOSTAP:
3943 /* XXX workaround for beaconing */
3944 sc->rxon.mode = WPI_MODE_IBSS;
3945 sc->rxon.filter |= WPI_FILTER_ASSOC | WPI_FILTER_PROMISC;
3947 case IEEE80211_M_AHDEMO:
3948 sc->rxon.mode = WPI_MODE_HOSTAP;
3950 case IEEE80211_M_MONITOR:
3951 sc->rxon.mode = WPI_MODE_MONITOR;
3954 device_printf(sc->sc_dev, "unknown opmode %d\n",
3958 sc->rxon.filter = htole32(sc->rxon.filter);
3959 wpi_set_promisc(sc);
3960 sc->rxon.cck_mask = 0x0f; /* not yet negotiated */
3961 sc->rxon.ofdm_mask = 0xff; /* not yet negotiated */
3963 /* XXX Current configuration may be unusable. */
3964 if (IEEE80211_IS_CHAN_NOADHOC(c) && sc->rxon.mode == WPI_MODE_IBSS) {
3965 device_printf(sc->sc_dev,
3966 "%s: invalid channel (%d) selected for IBSS mode\n",
3967 __func__, ieee80211_chan2ieee(ic, c));
3971 if ((error = wpi_send_rxon(sc, 0, 0)) != 0) {
3972 device_printf(sc->sc_dev, "%s: could not send RXON\n",
3977 /* Setup rate scalling. */
3978 if ((error = wpi_mrr_setup(sc)) != 0) {
3979 device_printf(sc->sc_dev, "could not setup MRR, error %d\n",
3984 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
3990 wpi_get_active_dwell_time(struct wpi_softc *sc,
3991 struct ieee80211_channel *c, uint8_t n_probes)
3993 /* No channel? Default to 2GHz settings. */
3994 if (c == NULL || IEEE80211_IS_CHAN_2GHZ(c)) {
3995 return (WPI_ACTIVE_DWELL_TIME_2GHZ +
3996 WPI_ACTIVE_DWELL_FACTOR_2GHZ * (n_probes + 1));
3999 /* 5GHz dwell time. */
4000 return (WPI_ACTIVE_DWELL_TIME_5GHZ +
4001 WPI_ACTIVE_DWELL_FACTOR_5GHZ * (n_probes + 1));
4005 * Limit the total dwell time.
4007 * Returns the dwell time in milliseconds.
4010 wpi_limit_dwell(struct wpi_softc *sc, uint16_t dwell_time)
4012 struct ieee80211com *ic = sc->sc_ifp->if_l2com;
4013 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
4016 /* bintval is in TU (1.024mS) */
4018 bintval = vap->iv_bss->ni_intval;
4021 * If it's non-zero, we should calculate the minimum of
4022 * it and the DWELL_BASE.
4024 * XXX Yes, the math should take into account that bintval
4025 * is 1.024mS, not 1mS..
4028 DPRINTF(sc, WPI_DEBUG_SCAN, "%s: bintval=%d\n", __func__,
4030 return (MIN(dwell_time, bintval - WPI_CHANNEL_TUNE_TIME * 2));
4033 /* No association context? Default. */
4038 wpi_get_passive_dwell_time(struct wpi_softc *sc, struct ieee80211_channel *c)
4042 if (c == NULL || IEEE80211_IS_CHAN_2GHZ(c))
4043 passive = WPI_PASSIVE_DWELL_BASE + WPI_PASSIVE_DWELL_TIME_2GHZ;
4045 passive = WPI_PASSIVE_DWELL_BASE + WPI_PASSIVE_DWELL_TIME_5GHZ;
4047 /* Clamp to the beacon interval if we're associated. */
4048 return (wpi_limit_dwell(sc, passive));
4052 wpi_get_scan_pause_time(uint32_t time, uint16_t bintval)
4054 uint32_t mod = (time % bintval) * IEEE80211_DUR_TU;
4055 uint32_t nbeacons = time / bintval;
4057 if (mod > WPI_PAUSE_MAX_TIME)
4058 mod = WPI_PAUSE_MAX_TIME;
4060 return WPI_PAUSE_SCAN(nbeacons, mod);
4064 * Send a scan request to the firmware.
4067 wpi_scan(struct wpi_softc *sc, struct ieee80211_channel *c)
4069 struct ifnet *ifp = sc->sc_ifp;
4070 struct ieee80211com *ic = ifp->if_l2com;
4071 struct ieee80211_scan_state *ss = ic->ic_scan;
4072 struct ieee80211vap *vap = ss->ss_vap;
4073 struct wpi_scan_hdr *hdr;
4074 struct wpi_cmd_data *tx;
4075 struct wpi_scan_essid *essids;
4076 struct wpi_scan_chan *chan;
4077 struct ieee80211_frame *wh;
4078 struct ieee80211_rateset *rs;
4079 uint16_t dwell_active, dwell_passive;
4081 int bgscan, bintval, buflen, error, i, nssid;
4083 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
4086 * We are absolutely not allowed to send a scan command when another
4087 * scan command is pending.
4089 if (callout_pending(&sc->scan_timeout)) {
4090 device_printf(sc->sc_dev, "%s: called whilst scanning!\n",
4096 bgscan = wpi_check_bss_filter(sc);
4097 bintval = vap->iv_bss->ni_intval;
4099 bintval < WPI_QUIET_TIME_DEFAULT + WPI_CHANNEL_TUNE_TIME * 2) {
4104 buf = malloc(WPI_SCAN_MAXSZ, M_DEVBUF, M_NOWAIT | M_ZERO);
4106 device_printf(sc->sc_dev,
4107 "%s: could not allocate buffer for scan command\n",
4112 hdr = (struct wpi_scan_hdr *)buf;
4115 * Move to the next channel if no packets are received within 10 msecs
4116 * after sending the probe request.
4118 hdr->quiet_time = htole16(WPI_QUIET_TIME_DEFAULT);
4119 hdr->quiet_threshold = htole16(1);
4123 * Max needs to be greater than active and passive and quiet!
4124 * It's also in microseconds!
4126 hdr->max_svc = htole32(250 * IEEE80211_DUR_TU);
4127 hdr->pause_svc = htole32(wpi_get_scan_pause_time(100,
4131 hdr->filter = htole32(WPI_FILTER_MULTICAST | WPI_FILTER_BEACON);
4133 tx = (struct wpi_cmd_data *)(hdr + 1);
4134 tx->flags = htole32(WPI_TX_AUTO_SEQ);
4135 tx->id = WPI_ID_BROADCAST;
4136 tx->lifetime = htole32(WPI_LIFETIME_INFINITE);
4138 if (IEEE80211_IS_CHAN_5GHZ(c)) {
4139 /* Send probe requests at 6Mbps. */
4140 tx->plcp = wpi_ridx_to_plcp[WPI_RIDX_OFDM6];
4141 rs = &ic->ic_sup_rates[IEEE80211_MODE_11A];
4143 hdr->flags = htole32(WPI_RXON_24GHZ | WPI_RXON_AUTO);
4144 /* Send probe requests at 1Mbps. */
4145 tx->plcp = wpi_ridx_to_plcp[WPI_RIDX_CCK1];
4146 rs = &ic->ic_sup_rates[IEEE80211_MODE_11G];
4149 essids = (struct wpi_scan_essid *)(tx + 1);
4150 nssid = MIN(ss->ss_nssid, WPI_SCAN_MAX_ESSIDS);
4151 for (i = 0; i < nssid; i++) {
4152 essids[i].id = IEEE80211_ELEMID_SSID;
4153 essids[i].len = MIN(ss->ss_ssid[i].len, IEEE80211_NWID_LEN);
4154 memcpy(essids[i].data, ss->ss_ssid[i].ssid, essids[i].len);
4156 if (sc->sc_debug & WPI_DEBUG_SCAN) {
4157 printf("Scanning Essid: ");
4158 ieee80211_print_essid(essids[i].data, essids[i].len);
4165 * Build a probe request frame. Most of the following code is a
4166 * copy & paste of what is done in net80211.
4168 wh = (struct ieee80211_frame *)(essids + WPI_SCAN_MAX_ESSIDS);
4169 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT |
4170 IEEE80211_FC0_SUBTYPE_PROBE_REQ;
4171 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS;
4172 IEEE80211_ADDR_COPY(wh->i_addr1, ifp->if_broadcastaddr);
4173 IEEE80211_ADDR_COPY(wh->i_addr2, vap->iv_myaddr);
4174 IEEE80211_ADDR_COPY(wh->i_addr3, ifp->if_broadcastaddr);
4175 *(uint16_t *)&wh->i_dur[0] = 0; /* filled by h/w */
4176 *(uint16_t *)&wh->i_seq[0] = 0; /* filled by h/w */
4178 frm = (uint8_t *)(wh + 1);
4179 frm = ieee80211_add_ssid(frm, NULL, 0);
4180 frm = ieee80211_add_rates(frm, rs);
4181 if (rs->rs_nrates > IEEE80211_RATE_SIZE)
4182 frm = ieee80211_add_xrates(frm, rs);
4184 /* Set length of probe request. */
4185 tx->len = htole16(frm - (uint8_t *)wh);
4188 * Construct information about the channel that we
4189 * want to scan. The firmware expects this to be directly
4190 * after the scan probe request
4192 chan = (struct wpi_scan_chan *)frm;
4193 chan->chan = htole16(ieee80211_chan2ieee(ic, c));
4196 hdr->crc_threshold = WPI_SCAN_CRC_TH_DEFAULT;
4197 chan->flags |= WPI_CHAN_NPBREQS(nssid);
4199 hdr->crc_threshold = WPI_SCAN_CRC_TH_NEVER;
4201 if (!IEEE80211_IS_CHAN_PASSIVE(c))
4202 chan->flags |= WPI_CHAN_ACTIVE;
4205 * Calculate the active/passive dwell times.
4208 dwell_active = wpi_get_active_dwell_time(sc, c, nssid);
4209 dwell_passive = wpi_get_passive_dwell_time(sc, c);
4211 /* Make sure they're valid. */
4212 if (dwell_active > dwell_passive)
4213 dwell_active = dwell_passive;
4215 chan->active = htole16(dwell_active);
4216 chan->passive = htole16(dwell_passive);
4218 chan->dsp_gain = 0x6e; /* Default level */
4220 if (IEEE80211_IS_CHAN_5GHZ(c))
4221 chan->rf_gain = 0x3b;
4223 chan->rf_gain = 0x28;
4225 DPRINTF(sc, WPI_DEBUG_SCAN, "Scanning %u Passive: %d\n",
4226 chan->chan, IEEE80211_IS_CHAN_PASSIVE(c));
4230 if (hdr->nchan == 1 && sc->rxon.chan == chan->chan) {
4231 /* XXX Force probe request transmission. */
4232 memcpy(chan + 1, chan, sizeof (struct wpi_scan_chan));
4236 /* Reduce unnecessary delay. */
4238 chan->passive = chan->active = hdr->quiet_time;
4245 buflen = (uint8_t *)chan - buf;
4246 hdr->len = htole16(buflen);
4248 DPRINTF(sc, WPI_DEBUG_CMD, "sending scan command nchan=%d\n",
4250 error = wpi_cmd(sc, WPI_CMD_SCAN, buf, buflen, 1);
4251 free(buf, M_DEVBUF);
4256 callout_reset(&sc->scan_timeout, 5*hz, wpi_scan_timeout, sc);
4258 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
4262 fail: DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
4268 wpi_auth(struct wpi_softc *sc, struct ieee80211vap *vap)
4270 struct ieee80211com *ic = vap->iv_ic;
4271 struct ieee80211_node *ni = vap->iv_bss;
4272 struct ieee80211_channel *c = ni->ni_chan;
4277 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
4279 /* Update adapter configuration. */
4280 sc->rxon.associd = 0;
4281 sc->rxon.filter &= ~htole32(WPI_FILTER_BSS);
4282 IEEE80211_ADDR_COPY(sc->rxon.bssid, ni->ni_bssid);
4283 sc->rxon.chan = ieee80211_chan2ieee(ic, c);
4284 sc->rxon.flags = htole32(WPI_RXON_TSF | WPI_RXON_CTS_TO_SELF);
4285 if (IEEE80211_IS_CHAN_2GHZ(c))
4286 sc->rxon.flags |= htole32(WPI_RXON_AUTO | WPI_RXON_24GHZ);
4287 if (ic->ic_flags & IEEE80211_F_SHSLOT)
4288 sc->rxon.flags |= htole32(WPI_RXON_SHSLOT);
4289 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
4290 sc->rxon.flags |= htole32(WPI_RXON_SHPREAMBLE);
4291 if (IEEE80211_IS_CHAN_A(c)) {
4292 sc->rxon.cck_mask = 0;
4293 sc->rxon.ofdm_mask = 0x15;
4294 } else if (IEEE80211_IS_CHAN_B(c)) {
4295 sc->rxon.cck_mask = 0x03;
4296 sc->rxon.ofdm_mask = 0;
4298 /* Assume 802.11b/g. */
4299 sc->rxon.cck_mask = 0x0f;
4300 sc->rxon.ofdm_mask = 0x15;
4303 DPRINTF(sc, WPI_DEBUG_STATE, "rxon chan %d flags %x cck %x ofdm %x\n",
4304 sc->rxon.chan, sc->rxon.flags, sc->rxon.cck_mask,
4305 sc->rxon.ofdm_mask);
4307 if ((error = wpi_send_rxon(sc, 0, 1)) != 0) {
4308 device_printf(sc->sc_dev, "%s: could not send RXON\n",
4312 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
4314 WPI_RXON_UNLOCK(sc);
4320 wpi_config_beacon(struct wpi_vap *wvp)
4322 struct ieee80211com *ic = wvp->wv_vap.iv_ic;
4323 struct ieee80211_beacon_offsets *bo = &wvp->wv_boff;
4324 struct wpi_buf *bcn = &wvp->wv_bcbuf;
4325 struct wpi_softc *sc = ic->ic_softc;
4326 struct wpi_cmd_beacon *cmd = (struct wpi_cmd_beacon *)&bcn->data;
4327 struct ieee80211_tim_ie *tie;
4332 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4334 WPI_VAP_LOCK_ASSERT(wvp);
4336 cmd->len = htole16(bcn->m->m_pkthdr.len);
4337 cmd->plcp = (ic->ic_curmode == IEEE80211_MODE_11A) ?
4338 wpi_ridx_to_plcp[WPI_RIDX_OFDM6] : wpi_ridx_to_plcp[WPI_RIDX_CCK1];
4340 /* XXX seems to be unused */
4341 if (*(bo->bo_tim) == IEEE80211_ELEMID_TIM) {
4342 tie = (struct ieee80211_tim_ie *) bo->bo_tim;
4343 ptr = mtod(bcn->m, uint8_t *);
4345 cmd->tim = htole16(bo->bo_tim - ptr);
4346 cmd->timsz = tie->tim_len;
4349 /* Necessary for recursion in ieee80211_beacon_update(). */
4351 bcn->m = m_dup(m, M_NOWAIT);
4352 if (bcn->m == NULL) {
4353 device_printf(sc->sc_dev,
4354 "%s: could not copy beacon frame\n", __func__);
4359 if ((error = wpi_cmd2(sc, bcn)) != 0) {
4360 device_printf(sc->sc_dev,
4361 "%s: could not update beacon frame, error %d", __func__,
4372 wpi_setup_beacon(struct wpi_softc *sc, struct ieee80211_node *ni)
4374 struct wpi_vap *wvp = WPI_VAP(ni->ni_vap);
4375 struct wpi_buf *bcn = &wvp->wv_bcbuf;
4376 struct ieee80211_beacon_offsets *bo = &wvp->wv_boff;
4380 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4382 if (ni->ni_chan == IEEE80211_CHAN_ANYC)
4385 m = ieee80211_beacon_alloc(ni, bo);
4387 device_printf(sc->sc_dev,
4388 "%s: could not allocate beacon frame\n", __func__);
4398 error = wpi_config_beacon(wvp);
4399 WPI_VAP_UNLOCK(wvp);
4405 wpi_update_beacon(struct ieee80211vap *vap, int item)
4407 struct wpi_softc *sc = vap->iv_ic->ic_softc;
4408 struct wpi_vap *wvp = WPI_VAP(vap);
4409 struct wpi_buf *bcn = &wvp->wv_bcbuf;
4410 struct ieee80211_beacon_offsets *bo = &wvp->wv_boff;
4411 struct ieee80211_node *ni = vap->iv_bss;
4414 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
4417 if (bcn->m == NULL) {
4418 bcn->m = ieee80211_beacon_alloc(ni, bo);
4419 if (bcn->m == NULL) {
4420 device_printf(sc->sc_dev,
4421 "%s: could not allocate beacon frame\n", __func__);
4423 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR,
4426 WPI_VAP_UNLOCK(wvp);
4430 WPI_VAP_UNLOCK(wvp);
4432 if (item == IEEE80211_BEACON_TIM)
4433 mcast = 1; /* TODO */
4435 setbit(bo->bo_flags, item);
4436 ieee80211_beacon_update(ni, bo, bcn->m, mcast);
4439 wpi_config_beacon(wvp);
4440 WPI_VAP_UNLOCK(wvp);
4442 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
4446 wpi_newassoc(struct ieee80211_node *ni, int isnew)
4448 struct ieee80211vap *vap = ni->ni_vap;
4449 struct wpi_softc *sc = ni->ni_ic->ic_softc;
4450 struct wpi_node *wn = WPI_NODE(ni);
4455 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4457 if (vap->iv_opmode != IEEE80211_M_STA && wn->id == WPI_ID_UNDEFINED) {
4458 if ((error = wpi_add_ibss_node(sc, ni)) != 0) {
4459 device_printf(sc->sc_dev,
4460 "%s: could not add IBSS node, error %d\n",
4468 wpi_run(struct wpi_softc *sc, struct ieee80211vap *vap)
4470 struct ieee80211com *ic = vap->iv_ic;
4471 struct ieee80211_node *ni = vap->iv_bss;
4472 struct ieee80211_channel *c = ni->ni_chan;
4475 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
4477 if (vap->iv_opmode == IEEE80211_M_MONITOR) {
4478 /* Link LED blinks while monitoring. */
4479 wpi_set_led(sc, WPI_LED_LINK, 5, 5);
4483 /* XXX kernel panic workaround */
4484 if (c == IEEE80211_CHAN_ANYC) {
4485 device_printf(sc->sc_dev, "%s: incomplete configuration\n",
4490 if ((error = wpi_set_timing(sc, ni)) != 0) {
4491 device_printf(sc->sc_dev,
4492 "%s: could not set timing, error %d\n", __func__, error);
4496 /* Update adapter configuration. */
4498 IEEE80211_ADDR_COPY(sc->rxon.bssid, ni->ni_bssid);
4499 sc->rxon.associd = htole16(IEEE80211_NODE_AID(ni));
4500 sc->rxon.chan = ieee80211_chan2ieee(ic, c);
4501 sc->rxon.flags = htole32(WPI_RXON_TSF | WPI_RXON_CTS_TO_SELF);
4502 if (IEEE80211_IS_CHAN_2GHZ(c))
4503 sc->rxon.flags |= htole32(WPI_RXON_AUTO | WPI_RXON_24GHZ);
4504 if (ic->ic_flags & IEEE80211_F_SHSLOT)
4505 sc->rxon.flags |= htole32(WPI_RXON_SHSLOT);
4506 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
4507 sc->rxon.flags |= htole32(WPI_RXON_SHPREAMBLE);
4508 if (IEEE80211_IS_CHAN_A(c)) {
4509 sc->rxon.cck_mask = 0;
4510 sc->rxon.ofdm_mask = 0x15;
4511 } else if (IEEE80211_IS_CHAN_B(c)) {
4512 sc->rxon.cck_mask = 0x03;
4513 sc->rxon.ofdm_mask = 0;
4515 /* Assume 802.11b/g. */
4516 sc->rxon.cck_mask = 0x0f;
4517 sc->rxon.ofdm_mask = 0x15;
4519 sc->rxon.filter |= htole32(WPI_FILTER_BSS);
4521 DPRINTF(sc, WPI_DEBUG_STATE, "rxon chan %d flags %x\n",
4522 sc->rxon.chan, sc->rxon.flags);
4524 if ((error = wpi_send_rxon(sc, 0, 1)) != 0) {
4525 device_printf(sc->sc_dev, "%s: could not send RXON\n",
4530 /* Start periodic calibration timer. */
4531 callout_reset(&sc->calib_to, 60*hz, wpi_calib_timeout, sc);
4533 WPI_RXON_UNLOCK(sc);
4535 if (vap->iv_opmode == IEEE80211_M_IBSS ||
4536 vap->iv_opmode == IEEE80211_M_HOSTAP) {
4537 if ((error = wpi_setup_beacon(sc, ni)) != 0) {
4538 device_printf(sc->sc_dev,
4539 "%s: could not setup beacon, error %d\n", __func__,
4545 if (vap->iv_opmode == IEEE80211_M_STA) {
4548 error = wpi_add_sta_node(sc, ni);
4551 device_printf(sc->sc_dev,
4552 "%s: could not add BSS node, error %d\n", __func__,
4558 /* Link LED always on while associated. */
4559 wpi_set_led(sc, WPI_LED_LINK, 0, 1);
4561 /* Enable power-saving mode if requested by user. */
4562 if ((vap->iv_flags & IEEE80211_F_PMGTON) &&
4563 vap->iv_opmode != IEEE80211_M_IBSS)
4564 (void)wpi_set_pslevel(sc, 0, 3, 1);
4566 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
4572 wpi_load_key(struct ieee80211_node *ni, const struct ieee80211_key *k)
4574 const struct ieee80211_cipher *cip = k->wk_cipher;
4575 struct ieee80211vap *vap = ni->ni_vap;
4576 struct wpi_softc *sc = ni->ni_ic->ic_softc;
4577 struct wpi_node *wn = WPI_NODE(ni);
4578 struct wpi_node_info node;
4582 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4584 if (wpi_check_node_entry(sc, wn->id) == 0) {
4585 device_printf(sc->sc_dev, "%s: node does not exist\n",
4590 switch (cip->ic_cipher) {
4591 case IEEE80211_CIPHER_AES_CCM:
4592 kflags = WPI_KFLAG_CCMP;
4596 device_printf(sc->sc_dev, "%s: unknown cipher %d\n", __func__,
4601 kflags |= WPI_KFLAG_KID(k->wk_keyix);
4602 if (k->wk_flags & IEEE80211_KEY_GROUP)
4603 kflags |= WPI_KFLAG_MULTICAST;
4605 memset(&node, 0, sizeof node);
4607 node.control = WPI_NODE_UPDATE;
4608 node.flags = WPI_FLAG_KEY_SET;
4609 node.kflags = htole16(kflags);
4610 memcpy(node.key, k->wk_key, k->wk_keylen);
4612 DPRINTF(sc, WPI_DEBUG_KEY,
4613 "%s: setting %s key id %d for node %d (%s)\n", __func__,
4614 (kflags & WPI_KFLAG_MULTICAST) ? "group" : "ucast", k->wk_keyix,
4615 node.id, ether_sprintf(ni->ni_macaddr));
4617 error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 1);
4619 device_printf(sc->sc_dev, "can't update node info, error %d\n",
4624 if (!(kflags & WPI_KFLAG_MULTICAST) && &vap->iv_nw_keys[0] <= k &&
4625 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]) {
4626 kflags |= WPI_KFLAG_MULTICAST;
4627 node.kflags = htole16(kflags);
4636 wpi_load_key_cb(void *arg, struct ieee80211_node *ni)
4638 const struct ieee80211_key *k = arg;
4639 struct ieee80211vap *vap = ni->ni_vap;
4640 struct wpi_softc *sc = ni->ni_ic->ic_softc;
4641 struct wpi_node *wn = WPI_NODE(ni);
4644 if (vap->iv_bss == ni && wn->id == WPI_ID_UNDEFINED)
4648 error = wpi_load_key(ni, k);
4652 device_printf(sc->sc_dev, "%s: error while setting key\n",
4658 wpi_set_global_keys(struct ieee80211_node *ni)
4660 struct ieee80211vap *vap = ni->ni_vap;
4661 struct ieee80211_key *wk = &vap->iv_nw_keys[0];
4664 for (; wk < &vap->iv_nw_keys[IEEE80211_WEP_NKID] && error; wk++)
4665 if (wk->wk_keyix != IEEE80211_KEYIX_NONE)
4666 error = wpi_load_key(ni, wk);
4672 wpi_del_key(struct ieee80211_node *ni, const struct ieee80211_key *k)
4674 struct ieee80211vap *vap = ni->ni_vap;
4675 struct wpi_softc *sc = ni->ni_ic->ic_softc;
4676 struct wpi_node *wn = WPI_NODE(ni);
4677 struct wpi_node_info node;
4681 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4683 if (wpi_check_node_entry(sc, wn->id) == 0) {
4684 DPRINTF(sc, WPI_DEBUG_KEY, "%s: node was removed\n", __func__);
4685 return 1; /* Nothing to do. */
4688 kflags = WPI_KFLAG_KID(k->wk_keyix);
4689 if (k->wk_flags & IEEE80211_KEY_GROUP)
4690 kflags |= WPI_KFLAG_MULTICAST;
4692 memset(&node, 0, sizeof node);
4694 node.control = WPI_NODE_UPDATE;
4695 node.flags = WPI_FLAG_KEY_SET;
4696 node.kflags = htole16(kflags);
4698 DPRINTF(sc, WPI_DEBUG_KEY, "%s: deleting %s key %d for node %d (%s)\n",
4699 __func__, (kflags & WPI_KFLAG_MULTICAST) ? "group" : "ucast",
4700 k->wk_keyix, node.id, ether_sprintf(ni->ni_macaddr));
4702 error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 1);
4704 device_printf(sc->sc_dev, "can't update node info, error %d\n",
4709 if (!(kflags & WPI_KFLAG_MULTICAST) && &vap->iv_nw_keys[0] <= k &&
4710 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]) {
4711 kflags |= WPI_KFLAG_MULTICAST;
4712 node.kflags = htole16(kflags);
4721 wpi_del_key_cb(void *arg, struct ieee80211_node *ni)
4723 const struct ieee80211_key *k = arg;
4724 struct ieee80211vap *vap = ni->ni_vap;
4725 struct wpi_softc *sc = ni->ni_ic->ic_softc;
4726 struct wpi_node *wn = WPI_NODE(ni);
4729 if (vap->iv_bss == ni && wn->id == WPI_ID_UNDEFINED)
4733 error = wpi_del_key(ni, k);
4737 device_printf(sc->sc_dev, "%s: error while deleting key\n",
4743 wpi_process_key(struct ieee80211vap *vap, const struct ieee80211_key *k,
4746 struct ieee80211com *ic = vap->iv_ic;
4747 struct wpi_softc *sc = ic->ic_softc;
4748 struct wpi_vap *wvp = WPI_VAP(vap);
4749 struct ieee80211_node *ni;
4750 int error, ni_ref = 0;
4752 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4754 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) {
4759 if (!(k->wk_flags & IEEE80211_KEY_RECV)) {
4760 /* XMIT keys are handled in wpi_tx_data(). */
4764 /* Handle group keys. */
4765 if (&vap->iv_nw_keys[0] <= k &&
4766 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]) {
4769 wvp->wv_gtk |= WPI_VAP_KEY(k->wk_keyix);
4771 wvp->wv_gtk &= ~WPI_VAP_KEY(k->wk_keyix);
4774 if (vap->iv_state == IEEE80211_S_RUN) {
4775 ieee80211_iterate_nodes(&ic->ic_sta,
4776 set ? wpi_load_key_cb : wpi_del_key_cb,
4777 __DECONST(void *, k));
4783 switch (vap->iv_opmode) {
4784 case IEEE80211_M_STA:
4788 case IEEE80211_M_IBSS:
4789 case IEEE80211_M_AHDEMO:
4790 case IEEE80211_M_HOSTAP:
4791 ni = ieee80211_find_vap_node(&ic->ic_sta, vap, k->wk_macaddr);
4793 return 0; /* should not happen */
4799 device_printf(sc->sc_dev, "%s: unknown opmode %d\n", __func__,
4806 error = wpi_load_key(ni, k);
4808 error = wpi_del_key(ni, k);
4812 ieee80211_node_decref(ni);
4818 wpi_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k,
4819 const uint8_t mac[IEEE80211_ADDR_LEN])
4821 return wpi_process_key(vap, k, 1);
4825 wpi_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k)
4827 return wpi_process_key(vap, k, 0);
4831 * This function is called after the runtime firmware notifies us of its
4832 * readiness (called in a process context).
4835 wpi_post_alive(struct wpi_softc *sc)
4839 /* Check (again) that the radio is not disabled. */
4840 if ((error = wpi_nic_lock(sc)) != 0)
4843 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4845 /* NB: Runtime firmware must be up and running. */
4846 if (!(wpi_prph_read(sc, WPI_APMG_RFKILL) & 1)) {
4847 device_printf(sc->sc_dev,
4848 "RF switch: radio disabled (%s)\n", __func__);
4850 return EPERM; /* :-) */
4854 /* Wait for thermal sensor to calibrate. */
4855 for (ntries = 0; ntries < 1000; ntries++) {
4856 if ((sc->temp = (int)WPI_READ(sc, WPI_UCODE_GP2)) != 0)
4861 if (ntries == 1000) {
4862 device_printf(sc->sc_dev,
4863 "timeout waiting for thermal sensor calibration\n");
4867 DPRINTF(sc, WPI_DEBUG_TEMP, "temperature %d\n", sc->temp);
4872 * The firmware boot code is small and is intended to be copied directly into
4873 * the NIC internal memory (no DMA transfer).
4876 wpi_load_bootcode(struct wpi_softc *sc, const uint8_t *ucode, int size)
4880 DPRINTF(sc, WPI_DEBUG_HW, "Loading microcode size 0x%x\n", size);
4882 size /= sizeof (uint32_t);
4884 if ((error = wpi_nic_lock(sc)) != 0)
4887 /* Copy microcode image into NIC memory. */
4888 wpi_prph_write_region_4(sc, WPI_BSM_SRAM_BASE,
4889 (const uint32_t *)ucode, size);
4891 wpi_prph_write(sc, WPI_BSM_WR_MEM_SRC, 0);
4892 wpi_prph_write(sc, WPI_BSM_WR_MEM_DST, WPI_FW_TEXT_BASE);
4893 wpi_prph_write(sc, WPI_BSM_WR_DWCOUNT, size);
4895 /* Start boot load now. */
4896 wpi_prph_write(sc, WPI_BSM_WR_CTRL, WPI_BSM_WR_CTRL_START);
4898 /* Wait for transfer to complete. */
4899 for (ntries = 0; ntries < 1000; ntries++) {
4900 uint32_t status = WPI_READ(sc, WPI_FH_TX_STATUS);
4901 DPRINTF(sc, WPI_DEBUG_HW,
4902 "firmware status=0x%x, val=0x%x, result=0x%x\n", status,
4903 WPI_FH_TX_STATUS_IDLE(6),
4904 status & WPI_FH_TX_STATUS_IDLE(6));
4905 if (status & WPI_FH_TX_STATUS_IDLE(6)) {
4906 DPRINTF(sc, WPI_DEBUG_HW,
4907 "Status Match! - ntries = %d\n", ntries);
4912 if (ntries == 1000) {
4913 device_printf(sc->sc_dev, "%s: could not load boot firmware\n",
4919 /* Enable boot after power up. */
4920 wpi_prph_write(sc, WPI_BSM_WR_CTRL, WPI_BSM_WR_CTRL_START_EN);
4927 wpi_load_firmware(struct wpi_softc *sc)
4929 struct wpi_fw_info *fw = &sc->fw;
4930 struct wpi_dma_info *dma = &sc->fw_dma;
4933 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4935 /* Copy initialization sections into pre-allocated DMA-safe memory. */
4936 memcpy(dma->vaddr, fw->init.data, fw->init.datasz);
4937 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
4938 memcpy(dma->vaddr + WPI_FW_DATA_MAXSZ, fw->init.text, fw->init.textsz);
4939 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
4941 /* Tell adapter where to find initialization sections. */
4942 if ((error = wpi_nic_lock(sc)) != 0)
4944 wpi_prph_write(sc, WPI_BSM_DRAM_DATA_ADDR, dma->paddr);
4945 wpi_prph_write(sc, WPI_BSM_DRAM_DATA_SIZE, fw->init.datasz);
4946 wpi_prph_write(sc, WPI_BSM_DRAM_TEXT_ADDR,
4947 dma->paddr + WPI_FW_DATA_MAXSZ);
4948 wpi_prph_write(sc, WPI_BSM_DRAM_TEXT_SIZE, fw->init.textsz);
4951 /* Load firmware boot code. */
4952 error = wpi_load_bootcode(sc, fw->boot.text, fw->boot.textsz);
4954 device_printf(sc->sc_dev, "%s: could not load boot firmware\n",
4959 /* Now press "execute". */
4960 WPI_WRITE(sc, WPI_RESET, 0);
4962 /* Wait at most one second for first alive notification. */
4963 if ((error = mtx_sleep(sc, &sc->sc_mtx, PCATCH, "wpiinit", hz)) != 0) {
4964 device_printf(sc->sc_dev,
4965 "%s: timeout waiting for adapter to initialize, error %d\n",
4970 /* Copy runtime sections into pre-allocated DMA-safe memory. */
4971 memcpy(dma->vaddr, fw->main.data, fw->main.datasz);
4972 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
4973 memcpy(dma->vaddr + WPI_FW_DATA_MAXSZ, fw->main.text, fw->main.textsz);
4974 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
4976 /* Tell adapter where to find runtime sections. */
4977 if ((error = wpi_nic_lock(sc)) != 0)
4979 wpi_prph_write(sc, WPI_BSM_DRAM_DATA_ADDR, dma->paddr);
4980 wpi_prph_write(sc, WPI_BSM_DRAM_DATA_SIZE, fw->main.datasz);
4981 wpi_prph_write(sc, WPI_BSM_DRAM_TEXT_ADDR,
4982 dma->paddr + WPI_FW_DATA_MAXSZ);
4983 wpi_prph_write(sc, WPI_BSM_DRAM_TEXT_SIZE,
4984 WPI_FW_UPDATED | fw->main.textsz);
4991 wpi_read_firmware(struct wpi_softc *sc)
4993 const struct firmware *fp;
4994 struct wpi_fw_info *fw = &sc->fw;
4995 const struct wpi_firmware_hdr *hdr;
4998 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
5000 DPRINTF(sc, WPI_DEBUG_FIRMWARE,
5001 "Attempting Loading Firmware from %s module\n", WPI_FW_NAME);
5004 fp = firmware_get(WPI_FW_NAME);
5008 device_printf(sc->sc_dev,
5009 "could not load firmware image '%s'\n", WPI_FW_NAME);
5015 if (fp->datasize < sizeof (struct wpi_firmware_hdr)) {
5016 device_printf(sc->sc_dev,
5017 "firmware file too short: %zu bytes\n", fp->datasize);
5022 fw->size = fp->datasize;
5023 fw->data = (const uint8_t *)fp->data;
5025 /* Extract firmware header information. */
5026 hdr = (const struct wpi_firmware_hdr *)fw->data;
5028 /* | RUNTIME FIRMWARE | INIT FIRMWARE | BOOT FW |
5029 |HDR|<--TEXT-->|<--DATA-->|<--TEXT-->|<--DATA-->|<--TEXT-->| */
5031 fw->main.textsz = le32toh(hdr->rtextsz);
5032 fw->main.datasz = le32toh(hdr->rdatasz);
5033 fw->init.textsz = le32toh(hdr->itextsz);
5034 fw->init.datasz = le32toh(hdr->idatasz);
5035 fw->boot.textsz = le32toh(hdr->btextsz);
5036 fw->boot.datasz = 0;
5038 /* Sanity-check firmware header. */
5039 if (fw->main.textsz > WPI_FW_TEXT_MAXSZ ||
5040 fw->main.datasz > WPI_FW_DATA_MAXSZ ||
5041 fw->init.textsz > WPI_FW_TEXT_MAXSZ ||
5042 fw->init.datasz > WPI_FW_DATA_MAXSZ ||
5043 fw->boot.textsz > WPI_FW_BOOT_TEXT_MAXSZ ||
5044 (fw->boot.textsz & 3) != 0) {
5045 device_printf(sc->sc_dev, "invalid firmware header\n");
5050 /* Check that all firmware sections fit. */
5051 if (fw->size < sizeof (*hdr) + fw->main.textsz + fw->main.datasz +
5052 fw->init.textsz + fw->init.datasz + fw->boot.textsz) {
5053 device_printf(sc->sc_dev,
5054 "firmware file too short: %zu bytes\n", fw->size);
5059 /* Get pointers to firmware sections. */
5060 fw->main.text = (const uint8_t *)(hdr + 1);
5061 fw->main.data = fw->main.text + fw->main.textsz;
5062 fw->init.text = fw->main.data + fw->main.datasz;
5063 fw->init.data = fw->init.text + fw->init.textsz;
5064 fw->boot.text = fw->init.data + fw->init.datasz;
5066 DPRINTF(sc, WPI_DEBUG_FIRMWARE,
5067 "Firmware Version: Major %d, Minor %d, Driver %d, \n"
5068 "runtime (text: %u, data: %u) init (text: %u, data %u) "
5069 "boot (text %u)\n", hdr->major, hdr->minor, le32toh(hdr->driver),
5070 fw->main.textsz, fw->main.datasz,
5071 fw->init.textsz, fw->init.datasz, fw->boot.textsz);
5073 DPRINTF(sc, WPI_DEBUG_FIRMWARE, "fw->main.text %p\n", fw->main.text);
5074 DPRINTF(sc, WPI_DEBUG_FIRMWARE, "fw->main.data %p\n", fw->main.data);
5075 DPRINTF(sc, WPI_DEBUG_FIRMWARE, "fw->init.text %p\n", fw->init.text);
5076 DPRINTF(sc, WPI_DEBUG_FIRMWARE, "fw->init.data %p\n", fw->init.data);
5077 DPRINTF(sc, WPI_DEBUG_FIRMWARE, "fw->boot.text %p\n", fw->boot.text);
5081 fail: wpi_unload_firmware(sc);
5086 * Free the referenced firmware image
5089 wpi_unload_firmware(struct wpi_softc *sc)
5091 if (sc->fw_fp != NULL) {
5092 firmware_put(sc->fw_fp, FIRMWARE_UNLOAD);
5098 wpi_clock_wait(struct wpi_softc *sc)
5102 /* Set "initialization complete" bit. */
5103 WPI_SETBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_INIT_DONE);
5105 /* Wait for clock stabilization. */
5106 for (ntries = 0; ntries < 2500; ntries++) {
5107 if (WPI_READ(sc, WPI_GP_CNTRL) & WPI_GP_CNTRL_MAC_CLOCK_READY)
5111 device_printf(sc->sc_dev,
5112 "%s: timeout waiting for clock stabilization\n", __func__);
5118 wpi_apm_init(struct wpi_softc *sc)
5123 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
5125 /* Disable L0s exit timer (NMI bug workaround). */
5126 WPI_SETBITS(sc, WPI_GIO_CHICKEN, WPI_GIO_CHICKEN_DIS_L0S_TIMER);
5127 /* Don't wait for ICH L0s (ICH bug workaround). */
5128 WPI_SETBITS(sc, WPI_GIO_CHICKEN, WPI_GIO_CHICKEN_L1A_NO_L0S_RX);
5130 /* Set FH wait threshold to max (HW bug under stress workaround). */
5131 WPI_SETBITS(sc, WPI_DBG_HPET_MEM, 0xffff0000);
5133 /* Retrieve PCIe Active State Power Management (ASPM). */
5134 reg = pci_read_config(sc->sc_dev, sc->sc_cap_off + 0x10, 1);
5135 /* Workaround for HW instability in PCIe L0->L0s->L1 transition. */
5136 if (reg & 0x02) /* L1 Entry enabled. */
5137 WPI_SETBITS(sc, WPI_GIO, WPI_GIO_L0S_ENA);
5139 WPI_CLRBITS(sc, WPI_GIO, WPI_GIO_L0S_ENA);
5141 WPI_SETBITS(sc, WPI_ANA_PLL, WPI_ANA_PLL_INIT);
5143 /* Wait for clock stabilization before accessing prph. */
5144 if ((error = wpi_clock_wait(sc)) != 0)
5147 if ((error = wpi_nic_lock(sc)) != 0)
5150 wpi_prph_write(sc, WPI_APMG_CLK_DIS, 0x00000400);
5151 wpi_prph_clrbits(sc, WPI_APMG_PS, 0x00000200);
5153 /* Enable DMA and BSM (Bootstrap State Machine). */
5154 wpi_prph_write(sc, WPI_APMG_CLK_EN,
5155 WPI_APMG_CLK_CTRL_DMA_CLK_RQT | WPI_APMG_CLK_CTRL_BSM_CLK_RQT);
5157 /* Disable L1-Active. */
5158 wpi_prph_setbits(sc, WPI_APMG_PCI_STT, WPI_APMG_PCI_STT_L1A_DIS);
5165 wpi_apm_stop_master(struct wpi_softc *sc)
5169 /* Stop busmaster DMA activity. */
5170 WPI_SETBITS(sc, WPI_RESET, WPI_RESET_STOP_MASTER);
5172 if ((WPI_READ(sc, WPI_GP_CNTRL) & WPI_GP_CNTRL_PS_MASK) ==
5173 WPI_GP_CNTRL_MAC_PS)
5174 return; /* Already asleep. */
5176 for (ntries = 0; ntries < 100; ntries++) {
5177 if (WPI_READ(sc, WPI_RESET) & WPI_RESET_MASTER_DISABLED)
5181 device_printf(sc->sc_dev, "%s: timeout waiting for master\n",
5186 wpi_apm_stop(struct wpi_softc *sc)
5188 wpi_apm_stop_master(sc);
5190 /* Reset the entire device. */
5191 WPI_SETBITS(sc, WPI_RESET, WPI_RESET_SW);
5193 /* Clear "initialization complete" bit. */
5194 WPI_CLRBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_INIT_DONE);
5198 wpi_nic_config(struct wpi_softc *sc)
5202 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
5204 /* voodoo from the Linux "driver".. */
5205 rev = pci_read_config(sc->sc_dev, PCIR_REVID, 1);
5206 if ((rev & 0xc0) == 0x40)
5207 WPI_SETBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_ALM_MB);
5208 else if (!(rev & 0x80))
5209 WPI_SETBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_ALM_MM);
5211 if (sc->cap == 0x80)
5212 WPI_SETBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_SKU_MRC);
5214 if ((sc->rev & 0xf0) == 0xd0)
5215 WPI_SETBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_REV_D);
5217 WPI_CLRBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_REV_D);
5220 WPI_SETBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_TYPE_B);
5224 wpi_hw_init(struct wpi_softc *sc)
5226 int chnl, ntries, error;
5228 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
5230 /* Clear pending interrupts. */
5231 WPI_WRITE(sc, WPI_INT, 0xffffffff);
5233 if ((error = wpi_apm_init(sc)) != 0) {
5234 device_printf(sc->sc_dev,
5235 "%s: could not power ON adapter, error %d\n", __func__,
5240 /* Select VMAIN power source. */
5241 if ((error = wpi_nic_lock(sc)) != 0)
5243 wpi_prph_clrbits(sc, WPI_APMG_PS, WPI_APMG_PS_PWR_SRC_MASK);
5245 /* Spin until VMAIN gets selected. */
5246 for (ntries = 0; ntries < 5000; ntries++) {
5247 if (WPI_READ(sc, WPI_GPIO_IN) & WPI_GPIO_IN_VMAIN)
5251 if (ntries == 5000) {
5252 device_printf(sc->sc_dev, "timeout selecting power source\n");
5256 /* Perform adapter initialization. */
5259 /* Initialize RX ring. */
5260 if ((error = wpi_nic_lock(sc)) != 0)
5262 /* Set physical address of RX ring. */
5263 WPI_WRITE(sc, WPI_FH_RX_BASE, sc->rxq.desc_dma.paddr);
5264 /* Set physical address of RX read pointer. */
5265 WPI_WRITE(sc, WPI_FH_RX_RPTR_ADDR, sc->shared_dma.paddr +
5266 offsetof(struct wpi_shared, next));
5267 WPI_WRITE(sc, WPI_FH_RX_WPTR, 0);
5269 WPI_WRITE(sc, WPI_FH_RX_CONFIG,
5270 WPI_FH_RX_CONFIG_DMA_ENA |
5271 WPI_FH_RX_CONFIG_RDRBD_ENA |
5272 WPI_FH_RX_CONFIG_WRSTATUS_ENA |
5273 WPI_FH_RX_CONFIG_MAXFRAG |
5274 WPI_FH_RX_CONFIG_NRBD(WPI_RX_RING_COUNT_LOG) |
5275 WPI_FH_RX_CONFIG_IRQ_DST_HOST |
5276 WPI_FH_RX_CONFIG_IRQ_TIMEOUT(1));
5277 (void)WPI_READ(sc, WPI_FH_RSSR_TBL); /* barrier */
5279 WPI_WRITE(sc, WPI_FH_RX_WPTR, (WPI_RX_RING_COUNT - 1) & ~7);
5281 /* Initialize TX rings. */
5282 if ((error = wpi_nic_lock(sc)) != 0)
5284 wpi_prph_write(sc, WPI_ALM_SCHED_MODE, 2); /* bypass mode */
5285 wpi_prph_write(sc, WPI_ALM_SCHED_ARASTAT, 1); /* enable RA0 */
5286 /* Enable all 6 TX rings. */
5287 wpi_prph_write(sc, WPI_ALM_SCHED_TXFACT, 0x3f);
5288 wpi_prph_write(sc, WPI_ALM_SCHED_SBYPASS_MODE1, 0x10000);
5289 wpi_prph_write(sc, WPI_ALM_SCHED_SBYPASS_MODE2, 0x30002);
5290 wpi_prph_write(sc, WPI_ALM_SCHED_TXF4MF, 4);
5291 wpi_prph_write(sc, WPI_ALM_SCHED_TXF5MF, 5);
5292 /* Set physical address of TX rings. */
5293 WPI_WRITE(sc, WPI_FH_TX_BASE, sc->shared_dma.paddr);
5294 WPI_WRITE(sc, WPI_FH_MSG_CONFIG, 0xffff05a5);
5296 /* Enable all DMA channels. */
5297 for (chnl = 0; chnl < WPI_NDMACHNLS; chnl++) {
5298 WPI_WRITE(sc, WPI_FH_CBBC_CTRL(chnl), 0);
5299 WPI_WRITE(sc, WPI_FH_CBBC_BASE(chnl), 0);
5300 WPI_WRITE(sc, WPI_FH_TX_CONFIG(chnl), 0x80200008);
5303 (void)WPI_READ(sc, WPI_FH_TX_BASE); /* barrier */
5305 /* Clear "radio off" and "commands blocked" bits. */
5306 WPI_WRITE(sc, WPI_UCODE_GP1_CLR, WPI_UCODE_GP1_RFKILL);
5307 WPI_WRITE(sc, WPI_UCODE_GP1_CLR, WPI_UCODE_GP1_CMD_BLOCKED);
5309 /* Clear pending interrupts. */
5310 WPI_WRITE(sc, WPI_INT, 0xffffffff);
5311 /* Enable interrupts. */
5312 WPI_WRITE(sc, WPI_INT_MASK, WPI_INT_MASK_DEF);
5314 /* _Really_ make sure "radio off" bit is cleared! */
5315 WPI_WRITE(sc, WPI_UCODE_GP1_CLR, WPI_UCODE_GP1_RFKILL);
5316 WPI_WRITE(sc, WPI_UCODE_GP1_CLR, WPI_UCODE_GP1_RFKILL);
5318 if ((error = wpi_load_firmware(sc)) != 0) {
5319 device_printf(sc->sc_dev,
5320 "%s: could not load firmware, error %d\n", __func__,
5324 /* Wait at most one second for firmware alive notification. */
5325 if ((error = mtx_sleep(sc, &sc->sc_mtx, PCATCH, "wpiinit", hz)) != 0) {
5326 device_printf(sc->sc_dev,
5327 "%s: timeout waiting for adapter to initialize, error %d\n",
5332 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
5334 /* Do post-firmware initialization. */
5335 return wpi_post_alive(sc);
5339 wpi_hw_stop(struct wpi_softc *sc)
5341 int chnl, qid, ntries;
5343 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
5345 if (WPI_READ(sc, WPI_UCODE_GP1) & WPI_UCODE_GP1_MAC_SLEEP)
5348 WPI_WRITE(sc, WPI_RESET, WPI_RESET_NEVO);
5350 /* Disable interrupts. */
5351 WPI_WRITE(sc, WPI_INT_MASK, 0);
5352 WPI_WRITE(sc, WPI_INT, 0xffffffff);
5353 WPI_WRITE(sc, WPI_FH_INT, 0xffffffff);
5355 /* Make sure we no longer hold the NIC lock. */
5358 if (wpi_nic_lock(sc) == 0) {
5359 /* Stop TX scheduler. */
5360 wpi_prph_write(sc, WPI_ALM_SCHED_MODE, 0);
5361 wpi_prph_write(sc, WPI_ALM_SCHED_TXFACT, 0);
5363 /* Stop all DMA channels. */
5364 for (chnl = 0; chnl < WPI_NDMACHNLS; chnl++) {
5365 WPI_WRITE(sc, WPI_FH_TX_CONFIG(chnl), 0);
5366 for (ntries = 0; ntries < 200; ntries++) {
5367 if (WPI_READ(sc, WPI_FH_TX_STATUS) &
5368 WPI_FH_TX_STATUS_IDLE(chnl))
5377 wpi_reset_rx_ring(sc);
5379 /* Reset all TX rings. */
5380 for (qid = 0; qid < WPI_NTXQUEUES; qid++)
5381 wpi_reset_tx_ring(sc, &sc->txq[qid]);
5383 if (wpi_nic_lock(sc) == 0) {
5384 wpi_prph_write(sc, WPI_APMG_CLK_DIS,
5385 WPI_APMG_CLK_CTRL_DMA_CLK_RQT);
5389 /* Power OFF adapter. */
5394 wpi_radio_on(void *arg0, int pending)
5396 struct wpi_softc *sc = arg0;
5397 struct ifnet *ifp = sc->sc_ifp;
5398 struct ieee80211com *ic = ifp->if_l2com;
5399 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
5401 device_printf(sc->sc_dev, "RF switch: radio enabled\n");
5405 ieee80211_init(vap);
5408 if (WPI_READ(sc, WPI_GP_CNTRL) & WPI_GP_CNTRL_RFKILL) {
5410 callout_stop(&sc->watchdog_rfkill);
5416 wpi_radio_off(void *arg0, int pending)
5418 struct wpi_softc *sc = arg0;
5419 struct ifnet *ifp = sc->sc_ifp;
5420 struct ieee80211com *ic = ifp->if_l2com;
5421 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
5423 device_printf(sc->sc_dev, "RF switch: radio disabled\n");
5427 ieee80211_stop(vap);
5430 callout_reset(&sc->watchdog_rfkill, hz, wpi_watchdog_rfkill, sc);
5437 struct wpi_softc *sc = arg;
5438 struct ifnet *ifp = sc->sc_ifp;
5439 struct ieee80211com *ic = ifp->if_l2com;
5444 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
5446 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0)
5449 /* Check that the radio is not disabled by hardware switch. */
5450 if (!(WPI_READ(sc, WPI_GP_CNTRL) & WPI_GP_CNTRL_RFKILL)) {
5451 device_printf(sc->sc_dev,
5452 "RF switch: radio disabled (%s)\n", __func__);
5453 callout_reset(&sc->watchdog_rfkill, hz, wpi_watchdog_rfkill,
5458 /* Read firmware images from the filesystem. */
5459 if ((error = wpi_read_firmware(sc)) != 0) {
5460 device_printf(sc->sc_dev,
5461 "%s: could not read firmware, error %d\n", __func__,
5466 /* Initialize hardware and upload firmware. */
5467 error = wpi_hw_init(sc);
5468 wpi_unload_firmware(sc);
5470 device_printf(sc->sc_dev,
5471 "%s: could not initialize hardware, error %d\n", __func__,
5476 /* Configure adapter now that it is ready. */
5478 if ((error = wpi_config(sc)) != 0) {
5479 device_printf(sc->sc_dev,
5480 "%s: could not configure device, error %d\n", __func__,
5485 IF_LOCK(&ifp->if_snd);
5486 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
5487 ifp->if_drv_flags |= IFF_DRV_RUNNING;
5488 IF_UNLOCK(&ifp->if_snd);
5490 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
5494 ieee80211_start_all(ic);
5498 fail: wpi_stop_locked(sc);
5499 end: DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
5504 wpi_stop_locked(struct wpi_softc *sc)
5506 struct ifnet *ifp = sc->sc_ifp;
5508 WPI_LOCK_ASSERT(sc);
5514 WPI_TXQ_STATE_LOCK(sc);
5515 callout_stop(&sc->tx_timeout);
5516 WPI_TXQ_STATE_UNLOCK(sc);
5519 callout_stop(&sc->scan_timeout);
5520 callout_stop(&sc->calib_to);
5521 WPI_RXON_UNLOCK(sc);
5523 IF_LOCK(&ifp->if_snd);
5524 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
5525 IF_UNLOCK(&ifp->if_snd);
5527 /* Power OFF hardware. */
5532 wpi_stop(struct wpi_softc *sc)
5535 wpi_stop_locked(sc);
5540 * Callback from net80211 to start a scan.
5543 wpi_scan_start(struct ieee80211com *ic)
5545 struct wpi_softc *sc = ic->ic_softc;
5547 wpi_set_led(sc, WPI_LED_LINK, 20, 2);
5551 * Callback from net80211 to terminate a scan.
5554 wpi_scan_end(struct ieee80211com *ic)
5556 struct wpi_softc *sc = ic->ic_softc;
5557 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
5559 if (vap->iv_state == IEEE80211_S_RUN)
5560 wpi_set_led(sc, WPI_LED_LINK, 0, 1);
5564 * Called by the net80211 framework to indicate to the driver
5565 * that the channel should be changed
5568 wpi_set_channel(struct ieee80211com *ic)
5570 const struct ieee80211_channel *c = ic->ic_curchan;
5571 struct wpi_softc *sc = ic->ic_softc;
5574 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
5577 sc->sc_rxtap.wr_chan_freq = htole16(c->ic_freq);
5578 sc->sc_rxtap.wr_chan_flags = htole16(c->ic_flags);
5581 sc->sc_txtap.wt_chan_freq = htole16(c->ic_freq);
5582 sc->sc_txtap.wt_chan_flags = htole16(c->ic_flags);
5586 * Only need to set the channel in Monitor mode. AP scanning and auth
5587 * are already taken care of by their respective firmware commands.
5589 if (ic->ic_opmode == IEEE80211_M_MONITOR) {
5591 sc->rxon.chan = ieee80211_chan2ieee(ic, c);
5592 if (IEEE80211_IS_CHAN_2GHZ(c)) {
5593 sc->rxon.flags |= htole32(WPI_RXON_AUTO |
5596 sc->rxon.flags &= ~htole32(WPI_RXON_AUTO |
5599 if ((error = wpi_send_rxon(sc, 0, 1)) != 0)
5600 device_printf(sc->sc_dev,
5601 "%s: error %d setting channel\n", __func__,
5603 WPI_RXON_UNLOCK(sc);
5608 * Called by net80211 to indicate that we need to scan the current
5609 * channel. The channel is previously be set via the wpi_set_channel
5613 wpi_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)
5615 struct ieee80211vap *vap = ss->ss_vap;
5616 struct ieee80211com *ic = vap->iv_ic;
5617 struct wpi_softc *sc = ic->ic_softc;
5621 error = wpi_scan(sc, ic->ic_curchan);
5622 WPI_RXON_UNLOCK(sc);
5624 ieee80211_cancel_scan(vap);
5628 * Called by the net80211 framework to indicate
5629 * the minimum dwell time has been met, terminate the scan.
5630 * We don't actually terminate the scan as the firmware will notify
5631 * us when it's finished and we have no way to interrupt it.
5634 wpi_scan_mindwell(struct ieee80211_scan_state *ss)
5636 /* NB: don't try to abort scan; wait for firmware to finish */
5640 wpi_hw_reset(void *arg, int pending)
5642 struct wpi_softc *sc = arg;
5643 struct ifnet *ifp = sc->sc_ifp;
5644 struct ieee80211com *ic = ifp->if_l2com;
5645 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
5647 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
5649 if (vap != NULL && (ic->ic_flags & IEEE80211_F_SCAN))
5650 ieee80211_cancel_scan(vap);
5654 ieee80211_stop(vap);
5657 ieee80211_init(vap);