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_reset_rx_ring(struct wpi_softc *);
156 static void wpi_free_rx_ring(struct wpi_softc *);
157 static int wpi_alloc_tx_ring(struct wpi_softc *, struct wpi_tx_ring *,
159 static void wpi_update_tx_ring(struct wpi_softc *, struct wpi_tx_ring *);
160 static void wpi_reset_tx_ring(struct wpi_softc *, struct wpi_tx_ring *);
161 static void wpi_free_tx_ring(struct wpi_softc *, struct wpi_tx_ring *);
162 static int wpi_read_eeprom(struct wpi_softc *,
163 uint8_t macaddr[IEEE80211_ADDR_LEN]);
164 static uint32_t wpi_eeprom_channel_flags(struct wpi_eeprom_chan *);
165 static void wpi_read_eeprom_band(struct wpi_softc *, int);
166 static int wpi_read_eeprom_channels(struct wpi_softc *, int);
167 static struct wpi_eeprom_chan *wpi_find_eeprom_channel(struct wpi_softc *,
168 struct ieee80211_channel *);
169 static int wpi_setregdomain(struct ieee80211com *,
170 struct ieee80211_regdomain *, int,
171 struct ieee80211_channel[]);
172 static int wpi_read_eeprom_group(struct wpi_softc *, int);
173 static int wpi_add_node_entry_adhoc(struct wpi_softc *);
174 static void wpi_node_free(struct ieee80211_node *);
175 static struct ieee80211_node *wpi_node_alloc(struct ieee80211vap *,
176 const uint8_t mac[IEEE80211_ADDR_LEN]);
177 static int wpi_newstate(struct ieee80211vap *, enum ieee80211_state, int);
178 static void wpi_calib_timeout(void *);
179 static void wpi_rx_done(struct wpi_softc *, struct wpi_rx_desc *,
180 struct wpi_rx_data *);
181 static void wpi_rx_statistics(struct wpi_softc *, struct wpi_rx_desc *,
182 struct wpi_rx_data *);
183 static void wpi_tx_done(struct wpi_softc *, struct wpi_rx_desc *);
184 static void wpi_cmd_done(struct wpi_softc *, struct wpi_rx_desc *);
185 static void wpi_notif_intr(struct wpi_softc *);
186 static void wpi_wakeup_intr(struct wpi_softc *);
188 static void wpi_debug_registers(struct wpi_softc *);
190 static void wpi_fatal_intr(struct wpi_softc *);
191 static void wpi_intr(void *);
192 static int wpi_cmd2(struct wpi_softc *, struct wpi_buf *);
193 static int wpi_tx_data(struct wpi_softc *, struct mbuf *,
194 struct ieee80211_node *);
195 static int wpi_tx_data_raw(struct wpi_softc *, struct mbuf *,
196 struct ieee80211_node *,
197 const struct ieee80211_bpf_params *);
198 static int wpi_raw_xmit(struct ieee80211_node *, struct mbuf *,
199 const struct ieee80211_bpf_params *);
200 static void wpi_start(struct ifnet *);
201 static void wpi_start_task(void *, int);
202 static void wpi_watchdog_rfkill(void *);
203 static void wpi_scan_timeout(void *);
204 static void wpi_tx_timeout(void *);
205 static int wpi_ioctl(struct ifnet *, u_long, caddr_t);
206 static int wpi_cmd(struct wpi_softc *, int, const void *, size_t, int);
207 static int wpi_mrr_setup(struct wpi_softc *);
208 static int wpi_add_node(struct wpi_softc *, struct ieee80211_node *);
209 static int wpi_add_broadcast_node(struct wpi_softc *, int);
210 static int wpi_add_ibss_node(struct wpi_softc *, struct ieee80211_node *);
211 static void wpi_del_node(struct wpi_softc *, struct ieee80211_node *);
212 static int wpi_updateedca(struct ieee80211com *);
213 static void wpi_set_promisc(struct wpi_softc *);
214 static void wpi_update_promisc(struct ifnet *);
215 static void wpi_update_mcast(struct ifnet *);
216 static void wpi_set_led(struct wpi_softc *, uint8_t, uint8_t, uint8_t);
217 static int wpi_set_timing(struct wpi_softc *, struct ieee80211_node *);
218 static void wpi_power_calibration(struct wpi_softc *);
219 static int wpi_set_txpower(struct wpi_softc *, int);
220 static int wpi_get_power_index(struct wpi_softc *,
221 struct wpi_power_group *, uint8_t, int, int);
222 static int wpi_set_pslevel(struct wpi_softc *, uint8_t, int, int);
223 static int wpi_send_btcoex(struct wpi_softc *);
224 static int wpi_send_rxon(struct wpi_softc *, int, int);
225 static int wpi_config(struct wpi_softc *);
226 static uint16_t wpi_get_active_dwell_time(struct wpi_softc *,
227 struct ieee80211_channel *, uint8_t);
228 static uint16_t wpi_limit_dwell(struct wpi_softc *, uint16_t);
229 static uint16_t wpi_get_passive_dwell_time(struct wpi_softc *,
230 struct ieee80211_channel *);
231 static uint32_t wpi_get_scan_pause_time(uint32_t, uint16_t);
232 static int wpi_scan(struct wpi_softc *, struct ieee80211_channel *);
233 static int wpi_auth(struct wpi_softc *, struct ieee80211vap *);
234 static int wpi_config_beacon(struct wpi_vap *);
235 static int wpi_setup_beacon(struct wpi_softc *, struct ieee80211_node *);
236 static void wpi_update_beacon(struct ieee80211vap *, int);
237 static void wpi_newassoc(struct ieee80211_node *, int);
238 static int wpi_run(struct wpi_softc *, struct ieee80211vap *);
239 static int wpi_load_key(struct ieee80211_node *,
240 const struct ieee80211_key *);
241 static void wpi_load_key_cb(void *, struct ieee80211_node *);
242 static int wpi_set_global_keys(struct ieee80211_node *);
243 static int wpi_del_key(struct ieee80211_node *,
244 const struct ieee80211_key *);
245 static void wpi_del_key_cb(void *, struct ieee80211_node *);
246 static int wpi_process_key(struct ieee80211vap *,
247 const struct ieee80211_key *, int);
248 static int wpi_key_set(struct ieee80211vap *,
249 const struct ieee80211_key *,
250 const uint8_t mac[IEEE80211_ADDR_LEN]);
251 static int wpi_key_delete(struct ieee80211vap *,
252 const struct ieee80211_key *);
253 static int wpi_post_alive(struct wpi_softc *);
254 static int wpi_load_bootcode(struct wpi_softc *, const uint8_t *, int);
255 static int wpi_load_firmware(struct wpi_softc *);
256 static int wpi_read_firmware(struct wpi_softc *);
257 static void wpi_unload_firmware(struct wpi_softc *);
258 static int wpi_clock_wait(struct wpi_softc *);
259 static int wpi_apm_init(struct wpi_softc *);
260 static void wpi_apm_stop_master(struct wpi_softc *);
261 static void wpi_apm_stop(struct wpi_softc *);
262 static void wpi_nic_config(struct wpi_softc *);
263 static int wpi_hw_init(struct wpi_softc *);
264 static void wpi_hw_stop(struct wpi_softc *);
265 static void wpi_radio_on(void *, int);
266 static void wpi_radio_off(void *, int);
267 static void wpi_init(void *);
268 static void wpi_stop_locked(struct wpi_softc *);
269 static void wpi_stop(struct wpi_softc *);
270 static void wpi_scan_start(struct ieee80211com *);
271 static void wpi_scan_end(struct ieee80211com *);
272 static void wpi_set_channel(struct ieee80211com *);
273 static void wpi_scan_curchan(struct ieee80211_scan_state *, unsigned long);
274 static void wpi_scan_mindwell(struct ieee80211_scan_state *);
275 static void wpi_hw_reset(void *, int);
277 static device_method_t wpi_methods[] = {
278 /* Device interface */
279 DEVMETHOD(device_probe, wpi_probe),
280 DEVMETHOD(device_attach, wpi_attach),
281 DEVMETHOD(device_detach, wpi_detach),
282 DEVMETHOD(device_shutdown, wpi_shutdown),
283 DEVMETHOD(device_suspend, wpi_suspend),
284 DEVMETHOD(device_resume, wpi_resume),
289 static driver_t wpi_driver = {
292 sizeof (struct wpi_softc)
294 static devclass_t wpi_devclass;
296 DRIVER_MODULE(wpi, pci, wpi_driver, wpi_devclass, NULL, NULL);
298 MODULE_VERSION(wpi, 1);
300 MODULE_DEPEND(wpi, pci, 1, 1, 1);
301 MODULE_DEPEND(wpi, wlan, 1, 1, 1);
302 MODULE_DEPEND(wpi, firmware, 1, 1, 1);
305 wpi_probe(device_t dev)
307 const struct wpi_ident *ident;
309 for (ident = wpi_ident_table; ident->name != NULL; ident++) {
310 if (pci_get_vendor(dev) == ident->vendor &&
311 pci_get_device(dev) == ident->device) {
312 device_set_desc(dev, ident->name);
313 return (BUS_PROBE_DEFAULT);
320 wpi_attach(device_t dev)
322 struct wpi_softc *sc = (struct wpi_softc *)device_get_softc(dev);
323 struct ieee80211com *ic;
328 const struct wpi_ident *ident;
330 uint8_t macaddr[IEEE80211_ADDR_LEN];
335 error = resource_int_value(device_get_name(sc->sc_dev),
336 device_get_unit(sc->sc_dev), "debug", &(sc->sc_debug));
343 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
346 * Get the offset of the PCI Express Capability Structure in PCI
347 * Configuration Space.
349 error = pci_find_cap(dev, PCIY_EXPRESS, &sc->sc_cap_off);
351 device_printf(dev, "PCIe capability structure not found!\n");
356 * Some card's only support 802.11b/g not a, check to see if
357 * this is one such card. A 0x0 in the subdevice table indicates
358 * the entire subdevice range is to be ignored.
361 for (ident = wpi_ident_table; ident->name != NULL; ident++) {
362 if (ident->subdevice &&
363 pci_get_subdevice(dev) == ident->subdevice) {
370 /* Clear device-specific "PCI retry timeout" register (41h). */
371 pci_write_config(dev, 0x41, 0, 1);
373 /* Enable bus-mastering. */
374 pci_enable_busmaster(dev);
377 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
379 if (sc->mem == NULL) {
380 device_printf(dev, "can't map mem space\n");
383 sc->sc_st = rman_get_bustag(sc->mem);
384 sc->sc_sh = rman_get_bushandle(sc->mem);
388 if (pci_alloc_msi(dev, &i) == 0)
390 /* Install interrupt handler. */
391 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE |
392 (rid != 0 ? 0 : RF_SHAREABLE));
393 if (sc->irq == NULL) {
394 device_printf(dev, "can't map interrupt\n");
400 WPI_TX_LOCK_INIT(sc);
401 WPI_RXON_LOCK_INIT(sc);
402 WPI_NT_LOCK_INIT(sc);
403 WPI_TXQ_LOCK_INIT(sc);
404 WPI_TXQ_STATE_LOCK_INIT(sc);
406 /* Allocate DMA memory for firmware transfers. */
407 if ((error = wpi_alloc_fwmem(sc)) != 0) {
409 "could not allocate memory for firmware, error %d\n",
414 /* Allocate shared page. */
415 if ((error = wpi_alloc_shared(sc)) != 0) {
416 device_printf(dev, "could not allocate shared page\n");
420 /* Allocate TX rings - 4 for QoS purposes, 1 for commands. */
421 for (i = 0; i < WPI_NTXQUEUES; i++) {
422 if ((error = wpi_alloc_tx_ring(sc, &sc->txq[i], i)) != 0) {
424 "could not allocate TX ring %d, error %d\n", i,
430 /* Allocate RX ring. */
431 if ((error = wpi_alloc_rx_ring(sc)) != 0) {
432 device_printf(dev, "could not allocate RX ring, error %d\n",
437 /* Clear pending interrupts. */
438 WPI_WRITE(sc, WPI_INT, 0xffffffff);
440 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
442 device_printf(dev, "can not allocate ifnet structure\n");
448 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
449 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
451 /* Set device capabilities. */
453 IEEE80211_C_STA /* station mode supported */
454 | IEEE80211_C_IBSS /* IBSS mode supported */
455 | IEEE80211_C_HOSTAP /* Host access point mode */
456 | IEEE80211_C_MONITOR /* monitor mode supported */
457 | IEEE80211_C_AHDEMO /* adhoc demo mode */
458 | IEEE80211_C_BGSCAN /* capable of bg scanning */
459 | IEEE80211_C_TXPMGT /* tx power management */
460 | IEEE80211_C_SHSLOT /* short slot time supported */
461 | IEEE80211_C_WPA /* 802.11i */
462 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
463 | IEEE80211_C_WME /* 802.11e */
464 | IEEE80211_C_PMGT /* Station-side power mgmt */
468 IEEE80211_CRYPTO_AES_CCM;
471 * Read in the eeprom and also setup the channels for
472 * net80211. We don't set the rates as net80211 does this for us
474 if ((error = wpi_read_eeprom(sc, macaddr)) != 0) {
475 device_printf(dev, "could not read EEPROM, error %d\n",
482 device_printf(sc->sc_dev, "Regulatory Domain: %.4s\n",
484 device_printf(sc->sc_dev, "Hardware Type: %c\n",
485 sc->type > 1 ? 'B': '?');
486 device_printf(sc->sc_dev, "Hardware Revision: %c\n",
487 ((sc->rev & 0xf0) == 0xd0) ? 'D': '?');
488 device_printf(sc->sc_dev, "SKU %s support 802.11a\n",
489 supportsa ? "does" : "does not");
491 /* XXX hw_config uses the PCIDEV for the Hardware rev. Must
492 check what sc->rev really represents - benjsc 20070615 */
496 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
498 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
499 ifp->if_init = wpi_init;
500 ifp->if_ioctl = wpi_ioctl;
501 ifp->if_start = wpi_start;
502 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
503 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
504 IFQ_SET_READY(&ifp->if_snd);
506 ieee80211_ifattach(ic, macaddr);
507 ic->ic_vap_create = wpi_vap_create;
508 ic->ic_vap_delete = wpi_vap_delete;
509 ic->ic_raw_xmit = wpi_raw_xmit;
510 ic->ic_node_alloc = wpi_node_alloc;
511 sc->sc_node_free = ic->ic_node_free;
512 ic->ic_node_free = wpi_node_free;
513 ic->ic_wme.wme_update = wpi_updateedca;
514 ic->ic_update_promisc = wpi_update_promisc;
515 ic->ic_update_mcast = wpi_update_mcast;
516 ic->ic_newassoc = wpi_newassoc;
517 ic->ic_scan_start = wpi_scan_start;
518 ic->ic_scan_end = wpi_scan_end;
519 ic->ic_set_channel = wpi_set_channel;
520 ic->ic_scan_curchan = wpi_scan_curchan;
521 ic->ic_scan_mindwell = wpi_scan_mindwell;
522 ic->ic_setregdomain = wpi_setregdomain;
524 wpi_radiotap_attach(sc);
526 callout_init_mtx(&sc->calib_to, &sc->rxon_mtx, 0);
527 callout_init_mtx(&sc->scan_timeout, &sc->rxon_mtx, 0);
528 callout_init_mtx(&sc->tx_timeout, &sc->txq_state_mtx, 0);
529 callout_init_mtx(&sc->watchdog_rfkill, &sc->sc_mtx, 0);
530 TASK_INIT(&sc->sc_reinittask, 0, wpi_hw_reset, sc);
531 TASK_INIT(&sc->sc_radiooff_task, 0, wpi_radio_off, sc);
532 TASK_INIT(&sc->sc_radioon_task, 0, wpi_radio_on, sc);
533 TASK_INIT(&sc->sc_start_task, 0, wpi_start_task, sc);
535 sc->sc_tq = taskqueue_create("wpi_taskq", M_WAITOK,
536 taskqueue_thread_enqueue, &sc->sc_tq);
537 error = taskqueue_start_threads(&sc->sc_tq, 1, 0, "wpi_taskq");
539 device_printf(dev, "can't start threads, error %d\n", error);
543 wpi_sysctlattach(sc);
546 * Hook our interrupt after all initialization is complete.
548 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
549 NULL, wpi_intr, sc, &sc->sc_ih);
551 device_printf(dev, "can't establish interrupt, error %d\n",
557 ieee80211_announce(ic);
560 if (sc->sc_debug & WPI_DEBUG_HW)
561 ieee80211_announce_channels(ic);
564 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
567 fail: wpi_detach(dev);
568 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
573 * Attach the interface to 802.11 radiotap.
576 wpi_radiotap_attach(struct wpi_softc *sc)
578 struct ifnet *ifp = sc->sc_ifp;
579 struct ieee80211com *ic = ifp->if_l2com;
580 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
581 ieee80211_radiotap_attach(ic,
582 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
583 WPI_TX_RADIOTAP_PRESENT,
584 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
585 WPI_RX_RADIOTAP_PRESENT);
586 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
590 wpi_sysctlattach(struct wpi_softc *sc)
593 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev);
594 struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev);
596 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
597 "debug", CTLFLAG_RW, &sc->sc_debug, sc->sc_debug,
598 "control debugging printfs");
603 wpi_init_beacon(struct wpi_vap *wvp)
605 struct wpi_buf *bcn = &wvp->wv_bcbuf;
606 struct wpi_cmd_beacon *cmd = (struct wpi_cmd_beacon *)&bcn->data;
608 cmd->id = WPI_ID_BROADCAST;
609 cmd->ofdm_mask = 0xff;
610 cmd->cck_mask = 0x0f;
611 cmd->lifetime = htole32(WPI_LIFETIME_INFINITE);
612 cmd->flags = htole32(WPI_TX_AUTO_SEQ | WPI_TX_INSERT_TSTAMP);
614 bcn->code = WPI_CMD_SET_BEACON;
615 bcn->ac = WPI_CMD_QUEUE_NUM;
616 bcn->size = sizeof(struct wpi_cmd_beacon);
619 static struct ieee80211vap *
620 wpi_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
621 enum ieee80211_opmode opmode, int flags,
622 const uint8_t bssid[IEEE80211_ADDR_LEN],
623 const uint8_t mac[IEEE80211_ADDR_LEN])
626 struct ieee80211vap *vap;
628 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
631 wvp = (struct wpi_vap *) malloc(sizeof(struct wpi_vap),
632 M_80211_VAP, M_NOWAIT | M_ZERO);
636 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
638 if (opmode == IEEE80211_M_IBSS || opmode == IEEE80211_M_HOSTAP) {
639 WPI_VAP_LOCK_INIT(wvp);
640 wpi_init_beacon(wvp);
643 /* Override with driver methods. */
644 vap->iv_key_set = wpi_key_set;
645 vap->iv_key_delete = wpi_key_delete;
646 wvp->wv_newstate = vap->iv_newstate;
647 vap->iv_newstate = wpi_newstate;
648 vap->iv_update_beacon = wpi_update_beacon;
649 vap->iv_max_aid = WPI_ID_IBSS_MAX - WPI_ID_IBSS_MIN + 1;
651 ieee80211_ratectl_init(vap);
652 /* Complete setup. */
653 ieee80211_vap_attach(vap, ieee80211_media_change,
654 ieee80211_media_status);
655 ic->ic_opmode = opmode;
660 wpi_vap_delete(struct ieee80211vap *vap)
662 struct wpi_vap *wvp = WPI_VAP(vap);
663 struct wpi_buf *bcn = &wvp->wv_bcbuf;
664 enum ieee80211_opmode opmode = vap->iv_opmode;
666 ieee80211_ratectl_deinit(vap);
667 ieee80211_vap_detach(vap);
669 if (opmode == IEEE80211_M_IBSS || opmode == IEEE80211_M_HOSTAP) {
673 WPI_VAP_LOCK_DESTROY(wvp);
676 free(wvp, M_80211_VAP);
680 wpi_detach(device_t dev)
682 struct wpi_softc *sc = device_get_softc(dev);
683 struct ifnet *ifp = sc->sc_ifp;
684 struct ieee80211com *ic;
687 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
692 ieee80211_draintask(ic, &sc->sc_radioon_task);
693 ieee80211_draintask(ic, &sc->sc_start_task);
697 taskqueue_drain_all(sc->sc_tq);
698 taskqueue_free(sc->sc_tq);
700 callout_drain(&sc->watchdog_rfkill);
701 callout_drain(&sc->tx_timeout);
702 callout_drain(&sc->scan_timeout);
703 callout_drain(&sc->calib_to);
704 ieee80211_ifdetach(ic);
707 /* Uninstall interrupt handler. */
708 if (sc->irq != NULL) {
709 bus_teardown_intr(dev, sc->irq, sc->sc_ih);
710 bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(sc->irq),
712 pci_release_msi(dev);
715 if (sc->txq[0].data_dmat) {
716 /* Free DMA resources. */
717 for (qid = 0; qid < WPI_NTXQUEUES; qid++)
718 wpi_free_tx_ring(sc, &sc->txq[qid]);
720 wpi_free_rx_ring(sc);
728 bus_release_resource(dev, SYS_RES_MEMORY,
729 rman_get_rid(sc->mem), sc->mem);
734 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
735 WPI_TXQ_STATE_LOCK_DESTROY(sc);
736 WPI_TXQ_LOCK_DESTROY(sc);
737 WPI_NT_LOCK_DESTROY(sc);
738 WPI_RXON_LOCK_DESTROY(sc);
739 WPI_TX_LOCK_DESTROY(sc);
740 WPI_LOCK_DESTROY(sc);
745 wpi_shutdown(device_t dev)
747 struct wpi_softc *sc = device_get_softc(dev);
754 wpi_suspend(device_t dev)
756 struct wpi_softc *sc = device_get_softc(dev);
757 struct ieee80211com *ic = sc->sc_ifp->if_l2com;
759 ieee80211_suspend_all(ic);
764 wpi_resume(device_t dev)
766 struct wpi_softc *sc = device_get_softc(dev);
767 struct ieee80211com *ic = sc->sc_ifp->if_l2com;
769 /* Clear device-specific "PCI retry timeout" register (41h). */
770 pci_write_config(dev, 0x41, 0, 1);
772 ieee80211_resume_all(ic);
777 * Grab exclusive access to NIC memory.
780 wpi_nic_lock(struct wpi_softc *sc)
784 /* Request exclusive access to NIC. */
785 WPI_SETBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ);
787 /* Spin until we actually get the lock. */
788 for (ntries = 0; ntries < 1000; ntries++) {
789 if ((WPI_READ(sc, WPI_GP_CNTRL) &
790 (WPI_GP_CNTRL_MAC_ACCESS_ENA | WPI_GP_CNTRL_SLEEP)) ==
791 WPI_GP_CNTRL_MAC_ACCESS_ENA)
796 device_printf(sc->sc_dev, "could not lock memory\n");
802 * Release lock on NIC memory.
805 wpi_nic_unlock(struct wpi_softc *sc)
807 WPI_CLRBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ);
810 static __inline uint32_t
811 wpi_prph_read(struct wpi_softc *sc, uint32_t addr)
813 WPI_WRITE(sc, WPI_PRPH_RADDR, WPI_PRPH_DWORD | addr);
814 WPI_BARRIER_READ_WRITE(sc);
815 return WPI_READ(sc, WPI_PRPH_RDATA);
819 wpi_prph_write(struct wpi_softc *sc, uint32_t addr, uint32_t data)
821 WPI_WRITE(sc, WPI_PRPH_WADDR, WPI_PRPH_DWORD | addr);
822 WPI_BARRIER_WRITE(sc);
823 WPI_WRITE(sc, WPI_PRPH_WDATA, data);
827 wpi_prph_setbits(struct wpi_softc *sc, uint32_t addr, uint32_t mask)
829 wpi_prph_write(sc, addr, wpi_prph_read(sc, addr) | mask);
833 wpi_prph_clrbits(struct wpi_softc *sc, uint32_t addr, uint32_t mask)
835 wpi_prph_write(sc, addr, wpi_prph_read(sc, addr) & ~mask);
839 wpi_prph_write_region_4(struct wpi_softc *sc, uint32_t addr,
840 const uint32_t *data, int count)
842 for (; count > 0; count--, data++, addr += 4)
843 wpi_prph_write(sc, addr, *data);
846 static __inline uint32_t
847 wpi_mem_read(struct wpi_softc *sc, uint32_t addr)
849 WPI_WRITE(sc, WPI_MEM_RADDR, addr);
850 WPI_BARRIER_READ_WRITE(sc);
851 return WPI_READ(sc, WPI_MEM_RDATA);
855 wpi_mem_read_region_4(struct wpi_softc *sc, uint32_t addr, uint32_t *data,
858 for (; count > 0; count--, addr += 4)
859 *data++ = wpi_mem_read(sc, addr);
863 wpi_read_prom_data(struct wpi_softc *sc, uint32_t addr, void *data, int count)
869 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
871 if ((error = wpi_nic_lock(sc)) != 0)
874 for (; count > 0; count -= 2, addr++) {
875 WPI_WRITE(sc, WPI_EEPROM, addr << 2);
876 for (ntries = 0; ntries < 10; ntries++) {
877 val = WPI_READ(sc, WPI_EEPROM);
878 if (val & WPI_EEPROM_READ_VALID)
883 device_printf(sc->sc_dev,
884 "timeout reading ROM at 0x%x\n", addr);
894 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
900 wpi_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
904 KASSERT(nsegs == 1, ("too many DMA segments, %d should be 1", nsegs));
905 *(bus_addr_t *)arg = segs[0].ds_addr;
909 * Allocates a contiguous block of dma memory of the requested size and
913 wpi_dma_contig_alloc(struct wpi_softc *sc, struct wpi_dma_info *dma,
914 void **kvap, bus_size_t size, bus_size_t alignment)
921 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), alignment,
922 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, size,
923 1, size, BUS_DMA_NOWAIT, NULL, NULL, &dma->tag);
927 error = bus_dmamem_alloc(dma->tag, (void **)&dma->vaddr,
928 BUS_DMA_NOWAIT | BUS_DMA_ZERO | BUS_DMA_COHERENT, &dma->map);
932 error = bus_dmamap_load(dma->tag, dma->map, dma->vaddr, size,
933 wpi_dma_map_addr, &dma->paddr, BUS_DMA_NOWAIT);
937 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
944 fail: wpi_dma_contig_free(dma);
949 wpi_dma_contig_free(struct wpi_dma_info *dma)
951 if (dma->vaddr != NULL) {
952 bus_dmamap_sync(dma->tag, dma->map,
953 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
954 bus_dmamap_unload(dma->tag, dma->map);
955 bus_dmamem_free(dma->tag, dma->vaddr, dma->map);
958 if (dma->tag != NULL) {
959 bus_dma_tag_destroy(dma->tag);
965 * Allocate a shared page between host and NIC.
968 wpi_alloc_shared(struct wpi_softc *sc)
970 /* Shared buffer must be aligned on a 4KB boundary. */
971 return wpi_dma_contig_alloc(sc, &sc->shared_dma,
972 (void **)&sc->shared, sizeof (struct wpi_shared), 4096);
976 wpi_free_shared(struct wpi_softc *sc)
978 wpi_dma_contig_free(&sc->shared_dma);
982 * Allocate DMA-safe memory for firmware transfer.
985 wpi_alloc_fwmem(struct wpi_softc *sc)
987 /* Must be aligned on a 16-byte boundary. */
988 return wpi_dma_contig_alloc(sc, &sc->fw_dma, NULL,
989 WPI_FW_TEXT_MAXSZ + WPI_FW_DATA_MAXSZ, 16);
993 wpi_free_fwmem(struct wpi_softc *sc)
995 wpi_dma_contig_free(&sc->fw_dma);
999 wpi_alloc_rx_ring(struct wpi_softc *sc)
1001 struct wpi_rx_ring *ring = &sc->rxq;
1008 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
1010 /* Allocate RX descriptors (16KB aligned.) */
1011 size = WPI_RX_RING_COUNT * sizeof (uint32_t);
1012 error = wpi_dma_contig_alloc(sc, &ring->desc_dma,
1013 (void **)&ring->desc, size, WPI_RING_DMA_ALIGN);
1015 device_printf(sc->sc_dev,
1016 "%s: could not allocate RX ring DMA memory, error %d\n",
1021 /* Create RX buffer DMA tag. */
1022 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
1023 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
1024 MJUMPAGESIZE, 1, MJUMPAGESIZE, BUS_DMA_NOWAIT, NULL, NULL,
1027 device_printf(sc->sc_dev,
1028 "%s: could not create RX buf DMA tag, error %d\n",
1034 * Allocate and map RX buffers.
1036 for (i = 0; i < WPI_RX_RING_COUNT; i++) {
1037 struct wpi_rx_data *data = &ring->data[i];
1040 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
1042 device_printf(sc->sc_dev,
1043 "%s: could not create RX buf DMA map, error %d\n",
1048 data->m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE);
1049 if (data->m == NULL) {
1050 device_printf(sc->sc_dev,
1051 "%s: could not allocate RX mbuf\n", __func__);
1056 error = bus_dmamap_load(ring->data_dmat, data->map,
1057 mtod(data->m, void *), MJUMPAGESIZE, wpi_dma_map_addr,
1058 &paddr, BUS_DMA_NOWAIT);
1059 if (error != 0 && error != EFBIG) {
1060 device_printf(sc->sc_dev,
1061 "%s: can't map mbuf (error %d)\n", __func__,
1066 /* Set physical address of RX buffer. */
1067 ring->desc[i] = htole32(paddr);
1070 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
1071 BUS_DMASYNC_PREWRITE);
1073 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
1077 fail: wpi_free_rx_ring(sc);
1079 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
1085 wpi_update_rx_ring(struct wpi_softc *sc)
1087 struct wpi_rx_ring *ring = &sc->rxq;
1089 if (ring->update != 0) {
1090 /* Wait for INT_WAKEUP event. */
1094 if (WPI_READ(sc, WPI_UCODE_GP1) & WPI_UCODE_GP1_MAC_SLEEP) {
1095 DPRINTF(sc, WPI_DEBUG_PWRSAVE, "%s: wakeup request\n",
1098 WPI_SETBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ);
1101 WPI_WRITE(sc, WPI_FH_RX_WPTR, ring->cur & ~7);
1105 wpi_reset_rx_ring(struct wpi_softc *sc)
1107 struct wpi_rx_ring *ring = &sc->rxq;
1110 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
1112 if (wpi_nic_lock(sc) == 0) {
1113 WPI_WRITE(sc, WPI_FH_RX_CONFIG, 0);
1114 for (ntries = 0; ntries < 1000; ntries++) {
1115 if (WPI_READ(sc, WPI_FH_RX_STATUS) &
1116 WPI_FH_RX_STATUS_IDLE)
1128 wpi_free_rx_ring(struct wpi_softc *sc)
1130 struct wpi_rx_ring *ring = &sc->rxq;
1133 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
1135 wpi_dma_contig_free(&ring->desc_dma);
1137 for (i = 0; i < WPI_RX_RING_COUNT; i++) {
1138 struct wpi_rx_data *data = &ring->data[i];
1140 if (data->m != NULL) {
1141 bus_dmamap_sync(ring->data_dmat, data->map,
1142 BUS_DMASYNC_POSTREAD);
1143 bus_dmamap_unload(ring->data_dmat, data->map);
1147 if (data->map != NULL)
1148 bus_dmamap_destroy(ring->data_dmat, data->map);
1150 if (ring->data_dmat != NULL) {
1151 bus_dma_tag_destroy(ring->data_dmat);
1152 ring->data_dmat = NULL;
1157 wpi_alloc_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring, int qid)
1168 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
1170 /* Allocate TX descriptors (16KB aligned.) */
1171 size = WPI_TX_RING_COUNT * sizeof (struct wpi_tx_desc);
1172 error = wpi_dma_contig_alloc(sc, &ring->desc_dma, (void **)&ring->desc,
1173 size, WPI_RING_DMA_ALIGN);
1175 device_printf(sc->sc_dev,
1176 "%s: could not allocate TX ring DMA memory, error %d\n",
1181 /* Update shared area with ring physical address. */
1182 sc->shared->txbase[qid] = htole32(ring->desc_dma.paddr);
1183 bus_dmamap_sync(sc->shared_dma.tag, sc->shared_dma.map,
1184 BUS_DMASYNC_PREWRITE);
1187 * We only use rings 0 through 4 (4 EDCA + cmd) so there is no need
1188 * to allocate commands space for other rings.
1189 * XXX Do we really need to allocate descriptors for other rings?
1191 if (qid > WPI_CMD_QUEUE_NUM) {
1192 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
1196 size = WPI_TX_RING_COUNT * sizeof (struct wpi_tx_cmd);
1197 error = wpi_dma_contig_alloc(sc, &ring->cmd_dma, (void **)&ring->cmd,
1200 device_printf(sc->sc_dev,
1201 "%s: could not allocate TX cmd DMA memory, error %d\n",
1206 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
1207 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES,
1208 WPI_MAX_SCATTER - 1, MCLBYTES, BUS_DMA_NOWAIT, NULL, NULL,
1211 device_printf(sc->sc_dev,
1212 "%s: could not create TX buf DMA tag, error %d\n",
1217 paddr = ring->cmd_dma.paddr;
1218 for (i = 0; i < WPI_TX_RING_COUNT; i++) {
1219 struct wpi_tx_data *data = &ring->data[i];
1221 data->cmd_paddr = paddr;
1222 paddr += sizeof (struct wpi_tx_cmd);
1224 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
1226 device_printf(sc->sc_dev,
1227 "%s: could not create TX buf DMA map, error %d\n",
1233 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
1237 fail: wpi_free_tx_ring(sc, ring);
1238 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
1243 wpi_update_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring)
1245 if (ring->update != 0) {
1246 /* Wait for INT_WAKEUP event. */
1250 if (WPI_READ(sc, WPI_UCODE_GP1) & WPI_UCODE_GP1_MAC_SLEEP) {
1251 DPRINTF(sc, WPI_DEBUG_PWRSAVE, "%s (%d): requesting wakeup\n",
1252 __func__, ring->qid);
1254 WPI_SETBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ);
1257 WPI_WRITE(sc, WPI_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur);
1261 wpi_reset_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring)
1265 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
1267 for (i = 0; i < WPI_TX_RING_COUNT; i++) {
1268 struct wpi_tx_data *data = &ring->data[i];
1270 if (data->m != NULL) {
1271 bus_dmamap_sync(ring->data_dmat, data->map,
1272 BUS_DMASYNC_POSTWRITE);
1273 bus_dmamap_unload(ring->data_dmat, data->map);
1278 /* Clear TX descriptors. */
1279 memset(ring->desc, 0, ring->desc_dma.size);
1280 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
1281 BUS_DMASYNC_PREWRITE);
1282 sc->qfullmsk &= ~(1 << ring->qid);
1289 wpi_free_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring)
1293 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
1295 wpi_dma_contig_free(&ring->desc_dma);
1296 wpi_dma_contig_free(&ring->cmd_dma);
1298 for (i = 0; i < WPI_TX_RING_COUNT; i++) {
1299 struct wpi_tx_data *data = &ring->data[i];
1301 if (data->m != NULL) {
1302 bus_dmamap_sync(ring->data_dmat, data->map,
1303 BUS_DMASYNC_POSTWRITE);
1304 bus_dmamap_unload(ring->data_dmat, data->map);
1307 if (data->map != NULL)
1308 bus_dmamap_destroy(ring->data_dmat, data->map);
1310 if (ring->data_dmat != NULL) {
1311 bus_dma_tag_destroy(ring->data_dmat);
1312 ring->data_dmat = NULL;
1317 * Extract various information from EEPROM.
1320 wpi_read_eeprom(struct wpi_softc *sc, uint8_t macaddr[IEEE80211_ADDR_LEN])
1322 #define WPI_CHK(res) do { \
1323 if ((error = res) != 0) \
1328 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
1330 /* Adapter has to be powered on for EEPROM access to work. */
1331 if ((error = wpi_apm_init(sc)) != 0) {
1332 device_printf(sc->sc_dev,
1333 "%s: could not power ON adapter, error %d\n", __func__,
1338 if ((WPI_READ(sc, WPI_EEPROM_GP) & 0x6) == 0) {
1339 device_printf(sc->sc_dev, "bad EEPROM signature\n");
1343 /* Clear HW ownership of EEPROM. */
1344 WPI_CLRBITS(sc, WPI_EEPROM_GP, WPI_EEPROM_GP_IF_OWNER);
1346 /* Read the hardware capabilities, revision and SKU type. */
1347 WPI_CHK(wpi_read_prom_data(sc, WPI_EEPROM_SKU_CAP, &sc->cap,
1349 WPI_CHK(wpi_read_prom_data(sc, WPI_EEPROM_REVISION, &sc->rev,
1351 WPI_CHK(wpi_read_prom_data(sc, WPI_EEPROM_TYPE, &sc->type,
1354 sc->rev = le16toh(sc->rev);
1355 DPRINTF(sc, WPI_DEBUG_EEPROM, "cap=%x rev=%x type=%x\n", sc->cap,
1358 /* Read the regulatory domain (4 ASCII characters.) */
1359 WPI_CHK(wpi_read_prom_data(sc, WPI_EEPROM_DOMAIN, sc->domain,
1360 sizeof(sc->domain)));
1362 /* Read MAC address. */
1363 WPI_CHK(wpi_read_prom_data(sc, WPI_EEPROM_MAC, macaddr,
1364 IEEE80211_ADDR_LEN));
1366 /* Read the list of authorized channels. */
1367 for (i = 0; i < WPI_CHAN_BANDS_COUNT; i++)
1368 WPI_CHK(wpi_read_eeprom_channels(sc, i));
1370 /* Read the list of TX power groups. */
1371 for (i = 0; i < WPI_POWER_GROUPS_COUNT; i++)
1372 WPI_CHK(wpi_read_eeprom_group(sc, i));
1374 fail: wpi_apm_stop(sc); /* Power OFF adapter. */
1376 DPRINTF(sc, WPI_DEBUG_TRACE, error ? TRACE_STR_END_ERR : TRACE_STR_END,
1384 * Translate EEPROM flags to net80211.
1387 wpi_eeprom_channel_flags(struct wpi_eeprom_chan *channel)
1392 if ((channel->flags & WPI_EEPROM_CHAN_ACTIVE) == 0)
1393 nflags |= IEEE80211_CHAN_PASSIVE;
1394 if ((channel->flags & WPI_EEPROM_CHAN_IBSS) == 0)
1395 nflags |= IEEE80211_CHAN_NOADHOC;
1396 if (channel->flags & WPI_EEPROM_CHAN_RADAR) {
1397 nflags |= IEEE80211_CHAN_DFS;
1398 /* XXX apparently IBSS may still be marked */
1399 nflags |= IEEE80211_CHAN_NOADHOC;
1402 /* XXX HOSTAP uses WPI_MODE_IBSS */
1403 if (nflags & IEEE80211_CHAN_NOADHOC)
1404 nflags |= IEEE80211_CHAN_NOHOSTAP;
1410 wpi_read_eeprom_band(struct wpi_softc *sc, int n)
1412 struct ifnet *ifp = sc->sc_ifp;
1413 struct ieee80211com *ic = ifp->if_l2com;
1414 struct wpi_eeprom_chan *channels = sc->eeprom_channels[n];
1415 const struct wpi_chan_band *band = &wpi_bands[n];
1416 struct ieee80211_channel *c;
1420 for (i = 0; i < band->nchan; i++) {
1421 if (!(channels[i].flags & WPI_EEPROM_CHAN_VALID)) {
1422 DPRINTF(sc, WPI_DEBUG_EEPROM,
1423 "Channel Not Valid: %d, band %d\n",
1428 chan = band->chan[i];
1429 nflags = wpi_eeprom_channel_flags(&channels[i]);
1431 c = &ic->ic_channels[ic->ic_nchans++];
1433 c->ic_maxregpower = channels[i].maxpwr;
1434 c->ic_maxpower = 2*c->ic_maxregpower;
1436 if (n == 0) { /* 2GHz band */
1437 c->ic_freq = ieee80211_ieee2mhz(chan,
1440 /* G =>'s B is supported */
1441 c->ic_flags = IEEE80211_CHAN_B | nflags;
1442 c = &ic->ic_channels[ic->ic_nchans++];
1444 c->ic_flags = IEEE80211_CHAN_G | nflags;
1445 } else { /* 5GHz band */
1446 c->ic_freq = ieee80211_ieee2mhz(chan,
1449 c->ic_flags = IEEE80211_CHAN_A | nflags;
1452 /* Save maximum allowed TX power for this channel. */
1453 sc->maxpwr[chan] = channels[i].maxpwr;
1455 DPRINTF(sc, WPI_DEBUG_EEPROM,
1456 "adding chan %d (%dMHz) flags=0x%x maxpwr=%d passive=%d,"
1457 " offset %d\n", chan, c->ic_freq,
1458 channels[i].flags, sc->maxpwr[chan],
1459 IEEE80211_IS_CHAN_PASSIVE(c), ic->ic_nchans);
1464 * Read the eeprom to find out what channels are valid for the given
1465 * band and update net80211 with what we find.
1468 wpi_read_eeprom_channels(struct wpi_softc *sc, int n)
1470 struct ifnet *ifp = sc->sc_ifp;
1471 struct ieee80211com *ic = ifp->if_l2com;
1472 const struct wpi_chan_band *band = &wpi_bands[n];
1475 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
1477 error = wpi_read_prom_data(sc, band->addr, &sc->eeprom_channels[n],
1478 band->nchan * sizeof (struct wpi_eeprom_chan));
1480 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
1484 wpi_read_eeprom_band(sc, n);
1486 ieee80211_sort_channels(ic->ic_channels, ic->ic_nchans);
1488 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
1493 static struct wpi_eeprom_chan *
1494 wpi_find_eeprom_channel(struct wpi_softc *sc, struct ieee80211_channel *c)
1498 for (j = 0; j < WPI_CHAN_BANDS_COUNT; j++)
1499 for (i = 0; i < wpi_bands[j].nchan; i++)
1500 if (wpi_bands[j].chan[i] == c->ic_ieee)
1501 return &sc->eeprom_channels[j][i];
1507 * Enforce flags read from EEPROM.
1510 wpi_setregdomain(struct ieee80211com *ic, struct ieee80211_regdomain *rd,
1511 int nchan, struct ieee80211_channel chans[])
1513 struct ifnet *ifp = ic->ic_ifp;
1514 struct wpi_softc *sc = ifp->if_softc;
1517 for (i = 0; i < nchan; i++) {
1518 struct ieee80211_channel *c = &chans[i];
1519 struct wpi_eeprom_chan *channel;
1521 channel = wpi_find_eeprom_channel(sc, c);
1522 if (channel == NULL) {
1523 if_printf(ic->ic_ifp,
1524 "%s: invalid channel %u freq %u/0x%x\n",
1525 __func__, c->ic_ieee, c->ic_freq, c->ic_flags);
1528 c->ic_flags |= wpi_eeprom_channel_flags(channel);
1535 wpi_read_eeprom_group(struct wpi_softc *sc, int n)
1537 struct wpi_power_group *group = &sc->groups[n];
1538 struct wpi_eeprom_group rgroup;
1541 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
1543 if ((error = wpi_read_prom_data(sc, WPI_EEPROM_POWER_GRP + n * 32,
1544 &rgroup, sizeof rgroup)) != 0) {
1545 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
1549 /* Save TX power group information. */
1550 group->chan = rgroup.chan;
1551 group->maxpwr = rgroup.maxpwr;
1552 /* Retrieve temperature at which the samples were taken. */
1553 group->temp = (int16_t)le16toh(rgroup.temp);
1555 DPRINTF(sc, WPI_DEBUG_EEPROM,
1556 "power group %d: chan=%d maxpwr=%d temp=%d\n", n, group->chan,
1557 group->maxpwr, group->temp);
1559 for (i = 0; i < WPI_SAMPLES_COUNT; i++) {
1560 group->samples[i].index = rgroup.samples[i].index;
1561 group->samples[i].power = rgroup.samples[i].power;
1563 DPRINTF(sc, WPI_DEBUG_EEPROM,
1564 "\tsample %d: index=%d power=%d\n", i,
1565 group->samples[i].index, group->samples[i].power);
1568 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
1574 wpi_add_node_entry_adhoc(struct wpi_softc *sc)
1576 int newid = WPI_ID_IBSS_MIN;
1578 for (; newid <= WPI_ID_IBSS_MAX; newid++) {
1579 if ((sc->nodesmsk & (1 << newid)) == 0) {
1580 sc->nodesmsk |= 1 << newid;
1585 return WPI_ID_UNDEFINED;
1589 wpi_add_node_entry_sta(struct wpi_softc *sc)
1591 sc->nodesmsk |= 1 << WPI_ID_BSS;
1597 wpi_check_node_entry(struct wpi_softc *sc, uint8_t id)
1599 if (id == WPI_ID_UNDEFINED)
1602 return (sc->nodesmsk >> id) & 1;
1605 static __inline void
1606 wpi_clear_node_table(struct wpi_softc *sc)
1611 static __inline void
1612 wpi_del_node_entry(struct wpi_softc *sc, uint8_t id)
1614 sc->nodesmsk &= ~(1 << id);
1617 static struct ieee80211_node *
1618 wpi_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN])
1620 struct wpi_node *wn;
1622 wn = malloc(sizeof (struct wpi_node), M_80211_NODE,
1628 wn->id = WPI_ID_UNDEFINED;
1634 wpi_node_free(struct ieee80211_node *ni)
1636 struct ieee80211com *ic = ni->ni_ic;
1637 struct wpi_softc *sc = ic->ic_ifp->if_softc;
1638 struct wpi_node *wn = WPI_NODE(ni);
1640 if (wn->id != WPI_ID_UNDEFINED) {
1642 if (wpi_check_node_entry(sc, wn->id)) {
1643 wpi_del_node_entry(sc, wn->id);
1644 wpi_del_node(sc, ni);
1649 sc->sc_node_free(ni);
1653 wpi_check_bss_filter(struct wpi_softc *sc)
1655 return (sc->rxon.filter & htole32(WPI_FILTER_BSS)) != 0;
1659 * Called by net80211 when ever there is a change to 80211 state machine
1662 wpi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
1664 struct wpi_vap *wvp = WPI_VAP(vap);
1665 struct ieee80211com *ic = vap->iv_ic;
1666 struct ifnet *ifp = ic->ic_ifp;
1667 struct wpi_softc *sc = ifp->if_softc;
1670 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
1672 DPRINTF(sc, WPI_DEBUG_STATE, "%s: %s -> %s\n", __func__,
1673 ieee80211_state_name[vap->iv_state],
1674 ieee80211_state_name[nstate]);
1676 if (vap->iv_state == IEEE80211_S_RUN && nstate < IEEE80211_S_RUN) {
1677 if ((error = wpi_set_pslevel(sc, 0, 0, 1)) != 0) {
1678 device_printf(sc->sc_dev,
1679 "%s: could not set power saving level\n",
1684 wpi_set_led(sc, WPI_LED_LINK, 1, 0);
1688 case IEEE80211_S_SCAN:
1690 if (wpi_check_bss_filter(sc) != 0) {
1691 sc->rxon.filter &= ~htole32(WPI_FILTER_BSS);
1692 if ((error = wpi_send_rxon(sc, 0, 1)) != 0) {
1693 device_printf(sc->sc_dev,
1694 "%s: could not send RXON\n", __func__);
1697 WPI_RXON_UNLOCK(sc);
1700 case IEEE80211_S_ASSOC:
1701 if (vap->iv_state != IEEE80211_S_RUN)
1704 case IEEE80211_S_AUTH:
1706 * The node must be registered in the firmware before auth.
1707 * Also the associd must be cleared on RUN -> ASSOC
1710 if ((error = wpi_auth(sc, vap)) != 0) {
1711 device_printf(sc->sc_dev,
1712 "%s: could not move to AUTH state, error %d\n",
1717 case IEEE80211_S_RUN:
1719 * RUN -> RUN transition; Just restart the timers.
1721 if (vap->iv_state == IEEE80211_S_RUN) {
1723 wpi_calib_timeout(sc);
1724 WPI_RXON_UNLOCK(sc);
1729 * !RUN -> RUN requires setting the association id
1730 * which is done with a firmware cmd. We also defer
1731 * starting the timers until that work is done.
1733 if ((error = wpi_run(sc, vap)) != 0) {
1734 device_printf(sc->sc_dev,
1735 "%s: could not move to RUN state\n", __func__);
1743 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
1747 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
1749 return wvp->wv_newstate(vap, nstate, arg);
1753 wpi_calib_timeout(void *arg)
1755 struct wpi_softc *sc = arg;
1757 if (wpi_check_bss_filter(sc) == 0)
1760 wpi_power_calibration(sc);
1762 callout_reset(&sc->calib_to, 60*hz, wpi_calib_timeout, sc);
1765 static __inline uint8_t
1766 rate2plcp(const uint8_t rate)
1769 case 12: return 0xd;
1770 case 18: return 0xf;
1771 case 24: return 0x5;
1772 case 36: return 0x7;
1773 case 48: return 0x9;
1774 case 72: return 0xb;
1775 case 96: return 0x1;
1776 case 108: return 0x3;
1780 case 22: return 110;
1785 static __inline uint8_t
1786 plcp2rate(const uint8_t plcp)
1789 case 0xd: return 12;
1790 case 0xf: return 18;
1791 case 0x5: return 24;
1792 case 0x7: return 36;
1793 case 0x9: return 48;
1794 case 0xb: return 72;
1795 case 0x1: return 96;
1796 case 0x3: return 108;
1800 case 110: return 22;
1805 /* Quickly determine if a given rate is CCK or OFDM. */
1806 #define WPI_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22)
1809 wpi_rx_done(struct wpi_softc *sc, struct wpi_rx_desc *desc,
1810 struct wpi_rx_data *data)
1812 struct ifnet *ifp = sc->sc_ifp;
1813 struct ieee80211com *ic = ifp->if_l2com;
1814 struct wpi_rx_ring *ring = &sc->rxq;
1815 struct wpi_rx_stat *stat;
1816 struct wpi_rx_head *head;
1817 struct wpi_rx_tail *tail;
1818 struct ieee80211_frame *wh;
1819 struct ieee80211_node *ni;
1820 struct mbuf *m, *m1;
1826 stat = (struct wpi_rx_stat *)(desc + 1);
1828 if (stat->len > WPI_STAT_MAXLEN) {
1829 device_printf(sc->sc_dev, "invalid RX statistic header\n");
1833 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTREAD);
1834 head = (struct wpi_rx_head *)((caddr_t)(stat + 1) + stat->len);
1835 len = le16toh(head->len);
1836 tail = (struct wpi_rx_tail *)((caddr_t)(head + 1) + len);
1837 flags = le32toh(tail->flags);
1839 DPRINTF(sc, WPI_DEBUG_RECV, "%s: idx %d len %d stat len %u rssi %d"
1840 " rate %x chan %d tstamp %ju\n", __func__, ring->cur,
1841 le32toh(desc->len), len, (int8_t)stat->rssi,
1842 head->plcp, head->chan, (uintmax_t)le64toh(tail->tstamp));
1844 /* Discard frames with a bad FCS early. */
1845 if ((flags & WPI_RX_NOERROR) != WPI_RX_NOERROR) {
1846 DPRINTF(sc, WPI_DEBUG_RECV, "%s: RX flags error %x\n",
1850 /* Discard frames that are too short. */
1851 if (len < sizeof (*wh)) {
1852 DPRINTF(sc, WPI_DEBUG_RECV, "%s: frame too short: %d\n",
1857 m1 = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE);
1859 DPRINTF(sc, WPI_DEBUG_ANY, "%s: no mbuf to restock ring\n",
1863 bus_dmamap_unload(ring->data_dmat, data->map);
1865 error = bus_dmamap_load(ring->data_dmat, data->map, mtod(m1, void *),
1866 MJUMPAGESIZE, wpi_dma_map_addr, &paddr, BUS_DMA_NOWAIT);
1867 if (error != 0 && error != EFBIG) {
1868 device_printf(sc->sc_dev,
1869 "%s: bus_dmamap_load failed, error %d\n", __func__, error);
1872 /* Try to reload the old mbuf. */
1873 error = bus_dmamap_load(ring->data_dmat, data->map,
1874 mtod(data->m, void *), MJUMPAGESIZE, wpi_dma_map_addr,
1875 &paddr, BUS_DMA_NOWAIT);
1876 if (error != 0 && error != EFBIG) {
1877 panic("%s: could not load old RX mbuf", __func__);
1879 /* Physical address may have changed. */
1880 ring->desc[ring->cur] = htole32(paddr);
1881 bus_dmamap_sync(ring->data_dmat, ring->desc_dma.map,
1882 BUS_DMASYNC_PREWRITE);
1888 /* Update RX descriptor. */
1889 ring->desc[ring->cur] = htole32(paddr);
1890 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
1891 BUS_DMASYNC_PREWRITE);
1893 /* Finalize mbuf. */
1894 m->m_pkthdr.rcvif = ifp;
1895 m->m_data = (caddr_t)(head + 1);
1896 m->m_pkthdr.len = m->m_len = len;
1898 /* Grab a reference to the source node. */
1899 wh = mtod(m, struct ieee80211_frame *);
1901 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) &&
1902 (flags & WPI_RX_CIPHER_MASK) == WPI_RX_CIPHER_CCMP) {
1903 /* Check whether decryption was successful or not. */
1904 if ((flags & WPI_RX_DECRYPT_MASK) != WPI_RX_DECRYPT_OK) {
1905 DPRINTF(sc, WPI_DEBUG_RECV,
1906 "CCMP decryption failed 0x%x\n", flags);
1909 m->m_flags |= M_WEP;
1912 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh);
1914 if (ieee80211_radiotap_active(ic)) {
1915 struct wpi_rx_radiotap_header *tap = &sc->sc_rxtap;
1918 if (head->flags & htole16(WPI_STAT_FLAG_SHPREAMBLE))
1919 tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
1920 tap->wr_dbm_antsignal = (int8_t)(stat->rssi + WPI_RSSI_OFFSET);
1921 tap->wr_dbm_antnoise = WPI_RSSI_OFFSET;
1922 tap->wr_tsft = tail->tstamp;
1923 tap->wr_antenna = (le16toh(head->flags) >> 4) & 0xf;
1924 tap->wr_rate = plcp2rate(head->plcp);
1929 /* Send the frame to the 802.11 layer. */
1931 (void)ieee80211_input(ni, m, stat->rssi, WPI_RSSI_OFFSET);
1932 /* Node is no longer needed. */
1933 ieee80211_free_node(ni);
1935 (void)ieee80211_input_all(ic, m, stat->rssi, WPI_RSSI_OFFSET);
1943 fail1: if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
1947 wpi_rx_statistics(struct wpi_softc *sc, struct wpi_rx_desc *desc,
1948 struct wpi_rx_data *data)
1954 wpi_tx_done(struct wpi_softc *sc, struct wpi_rx_desc *desc)
1956 struct ifnet *ifp = sc->sc_ifp;
1957 struct wpi_tx_ring *ring = &sc->txq[desc->qid & 0x3];
1958 struct wpi_tx_data *data = &ring->data[desc->idx];
1959 struct wpi_tx_stat *stat = (struct wpi_tx_stat *)(desc + 1);
1961 struct ieee80211_node *ni;
1962 struct ieee80211vap *vap;
1963 struct ieee80211com *ic;
1964 uint32_t status = le32toh(stat->status);
1965 int ackfailcnt = stat->ackfailcnt / WPI_NTRIES_DEFAULT;
1967 KASSERT(data->ni != NULL, ("no node"));
1968 KASSERT(data->m != NULL, ("no mbuf"));
1970 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
1972 DPRINTF(sc, WPI_DEBUG_XMIT, "%s: "
1973 "qid %d idx %d retries %d btkillcnt %d rate %x duration %d "
1974 "status %x\n", __func__, desc->qid, desc->idx, stat->ackfailcnt,
1975 stat->btkillcnt, stat->rate, le32toh(stat->duration), status);
1977 /* Unmap and free mbuf. */
1978 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTWRITE);
1979 bus_dmamap_unload(ring->data_dmat, data->map);
1980 m = data->m, data->m = NULL;
1981 ni = data->ni, data->ni = NULL;
1986 * Update rate control statistics for the node.
1988 if (status & WPI_TX_STATUS_FAIL) {
1989 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
1990 ieee80211_ratectl_tx_complete(vap, ni,
1991 IEEE80211_RATECTL_TX_FAILURE, &ackfailcnt, NULL);
1993 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
1994 ieee80211_ratectl_tx_complete(vap, ni,
1995 IEEE80211_RATECTL_TX_SUCCESS, &ackfailcnt, NULL);
1998 ieee80211_tx_complete(ni, m, (status & WPI_TX_STATUS_FAIL) != 0);
2000 WPI_TXQ_STATE_LOCK(sc);
2002 if (ring->queued > 0) {
2003 callout_reset(&sc->tx_timeout, 5*hz, wpi_tx_timeout, sc);
2005 if (sc->qfullmsk != 0 &&
2006 ring->queued < WPI_TX_RING_LOMARK) {
2007 sc->qfullmsk &= ~(1 << ring->qid);
2008 IF_LOCK(&ifp->if_snd);
2009 if (sc->qfullmsk == 0 &&
2010 (ifp->if_drv_flags & IFF_DRV_OACTIVE)) {
2011 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
2012 IF_UNLOCK(&ifp->if_snd);
2013 ieee80211_runtask(ic, &sc->sc_start_task);
2015 IF_UNLOCK(&ifp->if_snd);
2018 callout_stop(&sc->tx_timeout);
2019 WPI_TXQ_STATE_UNLOCK(sc);
2021 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
2025 * Process a "command done" firmware notification. This is where we wakeup
2026 * processes waiting for a synchronous command completion.
2029 wpi_cmd_done(struct wpi_softc *sc, struct wpi_rx_desc *desc)
2031 struct wpi_tx_ring *ring = &sc->txq[WPI_CMD_QUEUE_NUM];
2032 struct wpi_tx_data *data;
2034 DPRINTF(sc, WPI_DEBUG_CMD, "cmd notification qid %x idx %d flags %x "
2035 "type %s len %d\n", desc->qid, desc->idx,
2036 desc->flags, wpi_cmd_str(desc->type),
2037 le32toh(desc->len));
2039 if ((desc->qid & WPI_RX_DESC_QID_MSK) != WPI_CMD_QUEUE_NUM)
2040 return; /* Not a command ack. */
2042 KASSERT(ring->queued == 0, ("ring->queued must be 0"));
2044 data = &ring->data[desc->idx];
2046 /* If the command was mapped in an mbuf, free it. */
2047 if (data->m != NULL) {
2048 bus_dmamap_sync(ring->data_dmat, data->map,
2049 BUS_DMASYNC_POSTWRITE);
2050 bus_dmamap_unload(ring->data_dmat, data->map);
2055 wakeup(&ring->cmd[desc->idx]);
2059 wpi_notif_intr(struct wpi_softc *sc)
2061 struct ifnet *ifp = sc->sc_ifp;
2062 struct ieee80211com *ic = ifp->if_l2com;
2063 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2066 bus_dmamap_sync(sc->shared_dma.tag, sc->shared_dma.map,
2067 BUS_DMASYNC_POSTREAD);
2069 hw = le32toh(sc->shared->next);
2070 hw = (hw == 0) ? WPI_RX_RING_COUNT - 1 : hw - 1;
2072 while (sc->rxq.cur != hw) {
2073 sc->rxq.cur = (sc->rxq.cur + 1) % WPI_RX_RING_COUNT;
2075 struct wpi_rx_data *data = &sc->rxq.data[sc->rxq.cur];
2076 struct wpi_rx_desc *desc;
2078 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2079 BUS_DMASYNC_POSTREAD);
2080 desc = mtod(data->m, struct wpi_rx_desc *);
2082 DPRINTF(sc, WPI_DEBUG_NOTIFY,
2083 "%s: cur=%d; qid %x idx %d flags %x type %d(%s) len %d\n",
2084 __func__, sc->rxq.cur, desc->qid, desc->idx, desc->flags,
2085 desc->type, wpi_cmd_str(desc->type), le32toh(desc->len));
2087 if (!(desc->qid & WPI_UNSOLICITED_RX_NOTIF)) {
2088 /* Reply to a command. */
2089 wpi_cmd_done(sc, desc);
2092 switch (desc->type) {
2094 /* An 802.11 frame has been received. */
2095 wpi_rx_done(sc, desc, data);
2097 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
2098 /* wpi_stop() was called. */
2105 /* An 802.11 frame has been transmitted. */
2106 wpi_tx_done(sc, desc);
2109 case WPI_RX_STATISTICS:
2110 case WPI_BEACON_STATISTICS:
2111 wpi_rx_statistics(sc, desc, data);
2114 case WPI_BEACON_MISSED:
2116 struct wpi_beacon_missed *miss =
2117 (struct wpi_beacon_missed *)(desc + 1);
2118 uint32_t expected, misses, received, threshold;
2120 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2121 BUS_DMASYNC_POSTREAD);
2123 misses = le32toh(miss->consecutive);
2124 expected = le32toh(miss->expected);
2125 received = le32toh(miss->received);
2126 threshold = MAX(2, vap->iv_bmissthreshold);
2128 DPRINTF(sc, WPI_DEBUG_BMISS,
2129 "%s: beacons missed %u(%u) (received %u/%u)\n",
2130 __func__, misses, le32toh(miss->total), received,
2133 if (vap->iv_state == IEEE80211_S_RUN &&
2134 (ic->ic_flags & IEEE80211_F_SCAN) == 0 &&
2135 (misses >= threshold ||
2136 (received == 0 && expected >= threshold)))
2137 ieee80211_beacon_miss(ic);
2143 struct wpi_ucode_info *uc =
2144 (struct wpi_ucode_info *)(desc + 1);
2146 /* The microcontroller is ready. */
2147 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2148 BUS_DMASYNC_POSTREAD);
2149 DPRINTF(sc, WPI_DEBUG_RESET,
2150 "microcode alive notification version=%d.%d "
2151 "subtype=%x alive=%x\n", uc->major, uc->minor,
2152 uc->subtype, le32toh(uc->valid));
2154 if (le32toh(uc->valid) != 1) {
2155 device_printf(sc->sc_dev,
2156 "microcontroller initialization failed\n");
2157 wpi_stop_locked(sc);
2159 /* Save the address of the error log in SRAM. */
2160 sc->errptr = le32toh(uc->errptr);
2163 case WPI_STATE_CHANGED:
2165 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2166 BUS_DMASYNC_POSTREAD);
2168 uint32_t *status = (uint32_t *)(desc + 1);
2170 DPRINTF(sc, WPI_DEBUG_STATE, "state changed to %x\n",
2173 if (le32toh(*status) & 1) {
2175 wpi_clear_node_table(sc);
2177 taskqueue_enqueue(sc->sc_tq,
2178 &sc->sc_radiooff_task);
2183 case WPI_START_SCAN:
2185 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2186 BUS_DMASYNC_POSTREAD);
2188 struct wpi_start_scan *scan =
2189 (struct wpi_start_scan *)(desc + 1);
2190 DPRINTF(sc, WPI_DEBUG_SCAN,
2191 "%s: scanning channel %d status %x\n",
2192 __func__, scan->chan, le32toh(scan->status));
2198 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2199 BUS_DMASYNC_POSTREAD);
2201 struct wpi_stop_scan *scan =
2202 (struct wpi_stop_scan *)(desc + 1);
2203 DPRINTF(sc, WPI_DEBUG_SCAN,
2204 "scan finished nchan=%d status=%d chan=%d\n",
2205 scan->nchan, scan->status, scan->chan);
2208 callout_stop(&sc->scan_timeout);
2209 WPI_RXON_UNLOCK(sc);
2210 ieee80211_scan_next(vap);
2215 if (sc->rxq.cur % 8 == 0) {
2216 /* Tell the firmware what we have processed. */
2217 wpi_update_rx_ring(sc);
2223 * Process an INT_WAKEUP interrupt raised when the microcontroller wakes up
2224 * from power-down sleep mode.
2227 wpi_wakeup_intr(struct wpi_softc *sc)
2231 DPRINTF(sc, WPI_DEBUG_PWRSAVE,
2232 "%s: ucode wakeup from power-down sleep\n", __func__);
2234 /* Wakeup RX and TX rings. */
2235 if (sc->rxq.update) {
2237 wpi_update_rx_ring(sc);
2240 for (qid = 0; qid < WPI_DRV_NTXQUEUES; qid++) {
2241 struct wpi_tx_ring *ring = &sc->txq[qid];
2245 wpi_update_tx_ring(sc, ring);
2250 WPI_CLRBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ);
2254 * This function prints firmware registers
2258 wpi_debug_registers(struct wpi_softc *sc)
2260 #define COUNTOF(array) (sizeof(array) / sizeof(array[0]))
2262 static const uint32_t csr_tbl[] = {
2279 static const uint32_t prph_tbl[] = {
2286 DPRINTF(sc, WPI_DEBUG_REGISTER,"%s","\n");
2288 for (i = 0; i < COUNTOF(csr_tbl); i++) {
2289 DPRINTF(sc, WPI_DEBUG_REGISTER, " %-18s: 0x%08x ",
2290 wpi_get_csr_string(csr_tbl[i]), WPI_READ(sc, csr_tbl[i]));
2292 if ((i + 1) % 2 == 0)
2293 DPRINTF(sc, WPI_DEBUG_REGISTER, "\n");
2295 DPRINTF(sc, WPI_DEBUG_REGISTER, "\n\n");
2297 if (wpi_nic_lock(sc) == 0) {
2298 for (i = 0; i < COUNTOF(prph_tbl); i++) {
2299 DPRINTF(sc, WPI_DEBUG_REGISTER, " %-18s: 0x%08x ",
2300 wpi_get_prph_string(prph_tbl[i]),
2301 wpi_prph_read(sc, prph_tbl[i]));
2303 if ((i + 1) % 2 == 0)
2304 DPRINTF(sc, WPI_DEBUG_REGISTER, "\n");
2306 DPRINTF(sc, WPI_DEBUG_REGISTER, "\n");
2309 DPRINTF(sc, WPI_DEBUG_REGISTER,
2310 "Cannot access internal registers.\n");
2317 * Dump the error log of the firmware when a firmware panic occurs. Although
2318 * we can't debug the firmware because it is neither open source nor free, it
2319 * can help us to identify certain classes of problems.
2322 wpi_fatal_intr(struct wpi_softc *sc)
2324 struct wpi_fw_dump dump;
2325 uint32_t i, offset, count;
2326 const uint32_t size_errmsg =
2327 (sizeof (wpi_fw_errmsg) / sizeof ((wpi_fw_errmsg)[0]));
2329 /* Check that the error log address is valid. */
2330 if (sc->errptr < WPI_FW_DATA_BASE ||
2331 sc->errptr + sizeof (dump) >
2332 WPI_FW_DATA_BASE + WPI_FW_DATA_MAXSZ) {
2333 printf("%s: bad firmware error log address 0x%08x\n", __func__,
2337 if (wpi_nic_lock(sc) != 0) {
2338 printf("%s: could not read firmware error log\n", __func__);
2341 /* Read number of entries in the log. */
2342 count = wpi_mem_read(sc, sc->errptr);
2343 if (count == 0 || count * sizeof (dump) > WPI_FW_DATA_MAXSZ) {
2344 printf("%s: invalid count field (count = %u)\n", __func__,
2349 /* Skip "count" field. */
2350 offset = sc->errptr + sizeof (uint32_t);
2351 printf("firmware error log (count = %u):\n", count);
2352 for (i = 0; i < count; i++) {
2353 wpi_mem_read_region_4(sc, offset, (uint32_t *)&dump,
2354 sizeof (dump) / sizeof (uint32_t));
2356 printf(" error type = \"%s\" (0x%08X)\n",
2357 (dump.desc < size_errmsg) ?
2358 wpi_fw_errmsg[dump.desc] : "UNKNOWN",
2360 printf(" error data = 0x%08X\n",
2362 printf(" branch link = 0x%08X%08X\n",
2363 dump.blink[0], dump.blink[1]);
2364 printf(" interrupt link = 0x%08X%08X\n",
2365 dump.ilink[0], dump.ilink[1]);
2366 printf(" time = %u\n", dump.time);
2368 offset += sizeof (dump);
2371 /* Dump driver status (TX and RX rings) while we're here. */
2372 printf("driver status:\n");
2374 for (i = 0; i < WPI_DRV_NTXQUEUES; i++) {
2375 struct wpi_tx_ring *ring = &sc->txq[i];
2376 printf(" tx ring %2d: qid=%-2d cur=%-3d queued=%-3d\n",
2377 i, ring->qid, ring->cur, ring->queued);
2380 printf(" rx ring: cur=%d\n", sc->rxq.cur);
2386 struct wpi_softc *sc = arg;
2387 struct ifnet *ifp = sc->sc_ifp;
2392 /* Disable interrupts. */
2393 WPI_WRITE(sc, WPI_INT_MASK, 0);
2395 r1 = WPI_READ(sc, WPI_INT);
2397 if (r1 == 0xffffffff || (r1 & 0xfffffff0) == 0xa5a5a5a0)
2398 goto end; /* Hardware gone! */
2400 r2 = WPI_READ(sc, WPI_FH_INT);
2402 DPRINTF(sc, WPI_DEBUG_INTR, "%s: reg1=0x%08x reg2=0x%08x\n", __func__,
2405 if (r1 == 0 && r2 == 0)
2406 goto done; /* Interrupt not for us. */
2408 /* Acknowledge interrupts. */
2409 WPI_WRITE(sc, WPI_INT, r1);
2410 WPI_WRITE(sc, WPI_FH_INT, r2);
2412 if (r1 & (WPI_INT_SW_ERR | WPI_INT_HW_ERR)) {
2413 device_printf(sc->sc_dev, "fatal firmware error\n");
2415 wpi_debug_registers(sc);
2418 DPRINTF(sc, WPI_DEBUG_HW,
2419 "(%s)\n", (r1 & WPI_INT_SW_ERR) ? "(Software Error)" :
2420 "(Hardware Error)");
2421 taskqueue_enqueue(sc->sc_tq, &sc->sc_reinittask);
2425 if ((r1 & (WPI_INT_FH_RX | WPI_INT_SW_RX)) ||
2426 (r2 & WPI_FH_INT_RX))
2429 if (r1 & WPI_INT_ALIVE)
2430 wakeup(sc); /* Firmware is alive. */
2432 if (r1 & WPI_INT_WAKEUP)
2433 wpi_wakeup_intr(sc);
2436 /* Re-enable interrupts. */
2437 if (ifp->if_flags & IFF_UP)
2438 WPI_WRITE(sc, WPI_INT_MASK, WPI_INT_MASK_DEF);
2440 end: WPI_UNLOCK(sc);
2444 wpi_cmd2(struct wpi_softc *sc, struct wpi_buf *buf)
2446 struct ifnet *ifp = sc->sc_ifp;
2447 struct ieee80211_frame *wh;
2448 struct wpi_tx_cmd *cmd;
2449 struct wpi_tx_data *data;
2450 struct wpi_tx_desc *desc;
2451 struct wpi_tx_ring *ring;
2453 bus_dma_segment_t *seg, segs[WPI_MAX_SCATTER];
2454 int error, i, hdrlen, nsegs, totlen, pad;
2458 KASSERT(buf->size <= sizeof(buf->data), ("buffer overflow"));
2460 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
2462 if (sc->txq_active == 0) {
2463 /* wpi_stop() was called */
2468 wh = mtod(buf->m, struct ieee80211_frame *);
2469 hdrlen = ieee80211_anyhdrsize(wh);
2470 totlen = buf->m->m_pkthdr.len;
2473 /* First segment length must be a multiple of 4. */
2474 pad = 4 - (hdrlen & 3);
2478 ring = &sc->txq[buf->ac];
2479 desc = &ring->desc[ring->cur];
2480 data = &ring->data[ring->cur];
2482 /* Prepare TX firmware command. */
2483 cmd = &ring->cmd[ring->cur];
2484 cmd->code = buf->code;
2486 cmd->qid = ring->qid;
2487 cmd->idx = ring->cur;
2489 memcpy(cmd->data, buf->data, buf->size);
2491 /* Save and trim IEEE802.11 header. */
2492 memcpy((uint8_t *)(cmd->data + buf->size), wh, hdrlen);
2493 m_adj(buf->m, hdrlen);
2495 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, buf->m,
2496 segs, &nsegs, BUS_DMA_NOWAIT);
2497 if (error != 0 && error != EFBIG) {
2498 device_printf(sc->sc_dev,
2499 "%s: can't map mbuf (error %d)\n", __func__, error);
2503 /* Too many DMA segments, linearize mbuf. */
2504 m1 = m_collapse(buf->m, M_NOWAIT, WPI_MAX_SCATTER - 1);
2506 device_printf(sc->sc_dev,
2507 "%s: could not defrag mbuf\n", __func__);
2513 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map,
2514 buf->m, segs, &nsegs, BUS_DMA_NOWAIT);
2516 device_printf(sc->sc_dev,
2517 "%s: can't map mbuf (error %d)\n", __func__,
2523 KASSERT(nsegs < WPI_MAX_SCATTER,
2524 ("too many DMA segments, nsegs (%d) should be less than %d",
2525 nsegs, WPI_MAX_SCATTER));
2530 DPRINTF(sc, WPI_DEBUG_XMIT, "%s: qid %d idx %d len %d nsegs %d\n",
2531 __func__, ring->qid, ring->cur, totlen, nsegs);
2533 /* Fill TX descriptor. */
2534 desc->nsegs = WPI_PAD32(totlen + pad) << 4 | (1 + nsegs);
2535 /* First DMA segment is used by the TX command. */
2536 desc->segs[0].addr = htole32(data->cmd_paddr);
2537 desc->segs[0].len = htole32(4 + buf->size + hdrlen + pad);
2538 /* Other DMA segments are for data payload. */
2540 for (i = 1; i <= nsegs; i++) {
2541 desc->segs[i].addr = htole32(seg->ds_addr);
2542 desc->segs[i].len = htole32(seg->ds_len);
2546 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
2547 bus_dmamap_sync(ring->data_dmat, ring->cmd_dma.map,
2548 BUS_DMASYNC_PREWRITE);
2549 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
2550 BUS_DMASYNC_PREWRITE);
2553 ring->cur = (ring->cur + 1) % WPI_TX_RING_COUNT;
2554 wpi_update_tx_ring(sc, ring);
2556 if (ring->qid < WPI_CMD_QUEUE_NUM) {
2557 /* Mark TX ring as full if we reach a certain threshold. */
2558 WPI_TXQ_STATE_LOCK(sc);
2559 if (++ring->queued > WPI_TX_RING_HIMARK) {
2560 sc->qfullmsk |= 1 << ring->qid;
2562 IF_LOCK(&ifp->if_snd);
2563 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
2564 IF_UNLOCK(&ifp->if_snd);
2567 callout_reset(&sc->tx_timeout, 5*hz, wpi_tx_timeout, sc);
2568 WPI_TXQ_STATE_UNLOCK(sc);
2571 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
2577 fail: m_freem(buf->m);
2579 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
2587 * Construct the data packet for a transmit buffer.
2590 wpi_tx_data(struct wpi_softc *sc, struct mbuf *m, struct ieee80211_node *ni)
2592 const struct ieee80211_txparam *tp;
2593 struct ieee80211vap *vap = ni->ni_vap;
2594 struct ieee80211com *ic = ni->ni_ic;
2595 struct wpi_node *wn = WPI_NODE(ni);
2596 struct ieee80211_channel *chan;
2597 struct ieee80211_frame *wh;
2598 struct ieee80211_key *k = NULL;
2599 struct wpi_buf tx_data;
2600 struct wpi_cmd_data *tx = (struct wpi_cmd_data *)&tx_data.data;
2604 int ac, error, swcrypt, rate, ismcast, totlen;
2606 wh = mtod(m, struct ieee80211_frame *);
2607 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
2608 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1);
2610 /* Select EDCA Access Category and TX ring for this frame. */
2611 if (IEEE80211_QOS_HAS_SEQ(wh)) {
2612 qos = ((const struct ieee80211_qosframe *)wh)->i_qos[0];
2613 tid = qos & IEEE80211_QOS_TID;
2618 ac = M_WME_GETAC(m);
2620 chan = (ni->ni_chan != IEEE80211_CHAN_ANYC) ?
2621 ni->ni_chan : ic->ic_curchan;
2622 tp = &vap->iv_txparms[ieee80211_chan2mode(chan)];
2624 /* Choose a TX rate index. */
2625 if (type == IEEE80211_FC0_TYPE_MGT)
2626 rate = tp->mgmtrate;
2628 rate = tp->mcastrate;
2629 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE)
2630 rate = tp->ucastrate;
2631 else if (m->m_flags & M_EAPOL)
2632 rate = tp->mgmtrate;
2634 /* XXX pass pktlen */
2635 (void) ieee80211_ratectl_rate(ni, NULL, 0);
2636 rate = ni->ni_txrate;
2639 /* Encrypt the frame if need be. */
2640 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
2641 /* Retrieve key for TX. */
2642 k = ieee80211_crypto_encap(ni, m);
2647 swcrypt = k->wk_flags & IEEE80211_KEY_SWCRYPT;
2649 /* 802.11 header may have moved. */
2650 wh = mtod(m, struct ieee80211_frame *);
2652 totlen = m->m_pkthdr.len;
2654 if (ieee80211_radiotap_active_vap(vap)) {
2655 struct wpi_tx_radiotap_header *tap = &sc->sc_txtap;
2658 tap->wt_rate = rate;
2660 tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP;
2662 ieee80211_radiotap_tx(vap, m);
2667 /* Unicast frame, check if an ACK is expected. */
2668 if (!qos || (qos & IEEE80211_QOS_ACKPOLICY) !=
2669 IEEE80211_QOS_ACKPOLICY_NOACK)
2670 flags |= WPI_TX_NEED_ACK;
2673 if (wh->i_fc[1] & IEEE80211_FC1_MORE_FRAG)
2674 flags |= WPI_TX_MORE_FRAG; /* Cannot happen yet. */
2676 /* Check if frame must be protected using RTS/CTS or CTS-to-self. */
2678 /* NB: Group frames are sent using CCK in 802.11b/g. */
2679 if (totlen + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) {
2680 flags |= WPI_TX_NEED_RTS;
2681 } else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
2682 WPI_RATE_IS_OFDM(rate)) {
2683 if (ic->ic_protmode == IEEE80211_PROT_CTSONLY)
2684 flags |= WPI_TX_NEED_CTS;
2685 else if (ic->ic_protmode == IEEE80211_PROT_RTSCTS)
2686 flags |= WPI_TX_NEED_RTS;
2689 if (flags & (WPI_TX_NEED_RTS | WPI_TX_NEED_CTS))
2690 flags |= WPI_TX_FULL_TXOP;
2693 memset(tx, 0, sizeof (struct wpi_cmd_data));
2694 if (type == IEEE80211_FC0_TYPE_MGT) {
2695 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
2697 /* Tell HW to set timestamp in probe responses. */
2698 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP)
2699 flags |= WPI_TX_INSERT_TSTAMP;
2700 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ ||
2701 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ)
2702 tx->timeout = htole16(3);
2704 tx->timeout = htole16(2);
2707 if (ismcast || type != IEEE80211_FC0_TYPE_DATA)
2708 tx->id = WPI_ID_BROADCAST;
2710 if (wn->id == WPI_ID_UNDEFINED) {
2711 device_printf(sc->sc_dev,
2712 "%s: undefined node id\n", __func__);
2720 if (k != NULL && !swcrypt) {
2721 switch (k->wk_cipher->ic_cipher) {
2722 case IEEE80211_CIPHER_AES_CCM:
2723 tx->security = WPI_CIPHER_CCMP;
2730 memcpy(tx->key, k->wk_key, k->wk_keylen);
2733 tx->len = htole16(totlen);
2734 tx->flags = htole32(flags);
2735 tx->plcp = rate2plcp(rate);
2737 tx->lifetime = htole32(WPI_LIFETIME_INFINITE);
2738 tx->ofdm_mask = 0xff;
2739 tx->cck_mask = 0x0f;
2741 tx->data_ntries = tp->maxretry;
2745 tx_data.size = sizeof(struct wpi_cmd_data);
2746 tx_data.code = WPI_CMD_TX_DATA;
2749 return wpi_cmd2(sc, &tx_data);
2756 wpi_tx_data_raw(struct wpi_softc *sc, struct mbuf *m,
2757 struct ieee80211_node *ni, const struct ieee80211_bpf_params *params)
2759 struct ieee80211vap *vap = ni->ni_vap;
2760 struct ieee80211_key *k = NULL;
2761 struct ieee80211_frame *wh;
2762 struct wpi_buf tx_data;
2763 struct wpi_cmd_data *tx = (struct wpi_cmd_data *)&tx_data.data;
2766 int ac, rate, swcrypt, totlen;
2768 wh = mtod(m, struct ieee80211_frame *);
2769 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
2771 ac = params->ibp_pri & 3;
2773 /* Choose a TX rate index. */
2774 rate = params->ibp_rate0;
2777 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
2778 flags |= WPI_TX_NEED_ACK;
2779 if (params->ibp_flags & IEEE80211_BPF_RTS)
2780 flags |= WPI_TX_NEED_RTS;
2781 if (params->ibp_flags & IEEE80211_BPF_CTS)
2782 flags |= WPI_TX_NEED_CTS;
2783 if (flags & (WPI_TX_NEED_RTS | WPI_TX_NEED_CTS))
2784 flags |= WPI_TX_FULL_TXOP;
2786 /* Encrypt the frame if need be. */
2787 if (params->ibp_flags & IEEE80211_BPF_CRYPTO) {
2788 /* Retrieve key for TX. */
2789 k = ieee80211_crypto_encap(ni, m);
2794 swcrypt = k->wk_flags & IEEE80211_KEY_SWCRYPT;
2796 /* 802.11 header may have moved. */
2797 wh = mtod(m, struct ieee80211_frame *);
2799 totlen = m->m_pkthdr.len;
2801 if (ieee80211_radiotap_active_vap(vap)) {
2802 struct wpi_tx_radiotap_header *tap = &sc->sc_txtap;
2805 tap->wt_rate = rate;
2806 if (params->ibp_flags & IEEE80211_BPF_CRYPTO)
2807 tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP;
2809 ieee80211_radiotap_tx(vap, m);
2812 memset(tx, 0, sizeof (struct wpi_cmd_data));
2813 if (type == IEEE80211_FC0_TYPE_MGT) {
2814 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
2816 /* Tell HW to set timestamp in probe responses. */
2817 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP)
2818 flags |= WPI_TX_INSERT_TSTAMP;
2819 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ ||
2820 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ)
2821 tx->timeout = htole16(3);
2823 tx->timeout = htole16(2);
2826 if (k != NULL && !swcrypt) {
2827 switch (k->wk_cipher->ic_cipher) {
2828 case IEEE80211_CIPHER_AES_CCM:
2829 tx->security = WPI_CIPHER_CCMP;
2836 memcpy(tx->key, k->wk_key, k->wk_keylen);
2839 tx->len = htole16(totlen);
2840 tx->flags = htole32(flags);
2841 tx->plcp = rate2plcp(rate);
2842 tx->id = WPI_ID_BROADCAST;
2843 tx->lifetime = htole32(WPI_LIFETIME_INFINITE);
2844 tx->rts_ntries = params->ibp_try1;
2845 tx->data_ntries = params->ibp_try0;
2849 tx_data.size = sizeof(struct wpi_cmd_data);
2850 tx_data.code = WPI_CMD_TX_DATA;
2853 return wpi_cmd2(sc, &tx_data);
2857 wpi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
2858 const struct ieee80211_bpf_params *params)
2860 struct ieee80211com *ic = ni->ni_ic;
2861 struct ifnet *ifp = ic->ic_ifp;
2862 struct wpi_softc *sc = ifp->if_softc;
2865 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
2867 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
2868 ieee80211_free_node(ni);
2874 if (params == NULL) {
2876 * Legacy path; interpret frame contents to decide
2877 * precisely how to send the frame.
2879 error = wpi_tx_data(sc, m, ni);
2882 * Caller supplied explicit parameters to use in
2883 * sending the frame.
2885 error = wpi_tx_data_raw(sc, m, ni, params);
2890 /* NB: m is reclaimed on tx failure */
2891 ieee80211_free_node(ni);
2892 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
2894 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
2899 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
2905 * Process data waiting to be sent on the IFNET output queue
2908 wpi_start(struct ifnet *ifp)
2910 struct wpi_softc *sc = ifp->if_softc;
2911 struct ieee80211_node *ni;
2915 DPRINTF(sc, WPI_DEBUG_XMIT, "%s: called\n", __func__);
2918 IF_LOCK(&ifp->if_snd);
2919 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0 ||
2920 (ifp->if_drv_flags & IFF_DRV_OACTIVE)) {
2921 IF_UNLOCK(&ifp->if_snd);
2924 IF_UNLOCK(&ifp->if_snd);
2926 IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
2929 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
2930 if (wpi_tx_data(sc, m, ni) != 0) {
2931 ieee80211_free_node(ni);
2932 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
2936 DPRINTF(sc, WPI_DEBUG_XMIT, "%s: done\n", __func__);
2941 wpi_start_task(void *arg0, int pending)
2943 struct wpi_softc *sc = arg0;
2944 struct ifnet *ifp = sc->sc_ifp;
2950 wpi_watchdog_rfkill(void *arg)
2952 struct wpi_softc *sc = arg;
2953 struct ifnet *ifp = sc->sc_ifp;
2954 struct ieee80211com *ic = ifp->if_l2com;
2956 DPRINTF(sc, WPI_DEBUG_WATCHDOG, "RFkill Watchdog: tick\n");
2958 /* No need to lock firmware memory. */
2959 if ((wpi_prph_read(sc, WPI_APMG_RFKILL) & 0x1) == 0) {
2960 /* Radio kill switch is still off. */
2961 callout_reset(&sc->watchdog_rfkill, hz, wpi_watchdog_rfkill,
2964 ieee80211_runtask(ic, &sc->sc_radioon_task);
2968 wpi_scan_timeout(void *arg)
2970 struct wpi_softc *sc = arg;
2971 struct ifnet *ifp = sc->sc_ifp;
2973 if_printf(ifp, "scan timeout\n");
2974 taskqueue_enqueue(sc->sc_tq, &sc->sc_reinittask);
2978 wpi_tx_timeout(void *arg)
2980 struct wpi_softc *sc = arg;
2981 struct ifnet *ifp = sc->sc_ifp;
2983 if_printf(ifp, "device timeout\n");
2984 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
2985 taskqueue_enqueue(sc->sc_tq, &sc->sc_reinittask);
2989 wpi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
2991 struct wpi_softc *sc = ifp->if_softc;
2992 struct ieee80211com *ic = ifp->if_l2com;
2993 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2994 struct ifreq *ifr = (struct ifreq *) data;
2999 error = ether_ioctl(ifp, cmd, data);
3002 if (ifp->if_flags & IFF_UP) {
3005 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0 &&
3007 ieee80211_stop(vap);
3008 } else if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0)
3012 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
3022 * Send a command to the firmware.
3025 wpi_cmd(struct wpi_softc *sc, int code, const void *buf, size_t size,
3028 struct wpi_tx_ring *ring = &sc->txq[WPI_CMD_QUEUE_NUM];
3029 struct wpi_tx_desc *desc;
3030 struct wpi_tx_data *data;
3031 struct wpi_tx_cmd *cmd;
3038 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
3040 if (sc->txq_active == 0) {
3041 /* wpi_stop() was called */
3047 WPI_LOCK_ASSERT(sc);
3049 DPRINTF(sc, WPI_DEBUG_CMD, "%s: cmd %s size %zu async %d\n",
3050 __func__, wpi_cmd_str(code), size, async);
3052 desc = &ring->desc[ring->cur];
3053 data = &ring->data[ring->cur];
3056 if (size > sizeof cmd->data) {
3057 /* Command is too large to fit in a descriptor. */
3058 if (totlen > MCLBYTES) {
3062 m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE);
3067 cmd = mtod(m, struct wpi_tx_cmd *);
3068 error = bus_dmamap_load(ring->data_dmat, data->map, cmd,
3069 totlen, wpi_dma_map_addr, &paddr, BUS_DMA_NOWAIT);
3076 cmd = &ring->cmd[ring->cur];
3077 paddr = data->cmd_paddr;
3082 cmd->qid = ring->qid;
3083 cmd->idx = ring->cur;
3084 memcpy(cmd->data, buf, size);
3086 desc->nsegs = 1 + (WPI_PAD32(size) << 4);
3087 desc->segs[0].addr = htole32(paddr);
3088 desc->segs[0].len = htole32(totlen);
3090 if (size > sizeof cmd->data) {
3091 bus_dmamap_sync(ring->data_dmat, data->map,
3092 BUS_DMASYNC_PREWRITE);
3094 bus_dmamap_sync(ring->data_dmat, ring->cmd_dma.map,
3095 BUS_DMASYNC_PREWRITE);
3097 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
3098 BUS_DMASYNC_PREWRITE);
3100 /* Kick command ring. */
3101 ring->cur = (ring->cur + 1) % WPI_TX_RING_COUNT;
3102 wpi_update_tx_ring(sc, ring);
3104 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
3111 return mtx_sleep(cmd, &sc->sc_mtx, PCATCH, "wpicmd", hz);
3113 fail: DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
3121 * Configure HW multi-rate retries.
3124 wpi_mrr_setup(struct wpi_softc *sc)
3126 struct ifnet *ifp = sc->sc_ifp;
3127 struct ieee80211com *ic = ifp->if_l2com;
3128 struct wpi_mrr_setup mrr;
3131 /* CCK rates (not used with 802.11a). */
3132 for (i = WPI_RIDX_CCK1; i <= WPI_RIDX_CCK11; i++) {
3133 mrr.rates[i].flags = 0;
3134 mrr.rates[i].plcp = wpi_ridx_to_plcp[i];
3135 /* Fallback to the immediate lower CCK rate (if any.) */
3137 (i == WPI_RIDX_CCK1) ? WPI_RIDX_CCK1 : i - 1;
3138 /* Try twice at this rate before falling back to "next". */
3139 mrr.rates[i].ntries = WPI_NTRIES_DEFAULT;
3141 /* OFDM rates (not used with 802.11b). */
3142 for (i = WPI_RIDX_OFDM6; i <= WPI_RIDX_OFDM54; i++) {
3143 mrr.rates[i].flags = 0;
3144 mrr.rates[i].plcp = wpi_ridx_to_plcp[i];
3145 /* Fallback to the immediate lower rate (if any.) */
3146 /* We allow fallback from OFDM/6 to CCK/2 in 11b/g mode. */
3147 mrr.rates[i].next = (i == WPI_RIDX_OFDM6) ?
3148 ((ic->ic_curmode == IEEE80211_MODE_11A) ?
3149 WPI_RIDX_OFDM6 : WPI_RIDX_CCK2) :
3151 /* Try twice at this rate before falling back to "next". */
3152 mrr.rates[i].ntries = WPI_NTRIES_DEFAULT;
3154 /* Setup MRR for control frames. */
3155 mrr.which = htole32(WPI_MRR_CTL);
3156 error = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof mrr, 0);
3158 device_printf(sc->sc_dev,
3159 "could not setup MRR for control frames\n");
3162 /* Setup MRR for data frames. */
3163 mrr.which = htole32(WPI_MRR_DATA);
3164 error = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof mrr, 0);
3166 device_printf(sc->sc_dev,
3167 "could not setup MRR for data frames\n");
3174 wpi_add_node(struct wpi_softc *sc, struct ieee80211_node *ni)
3176 struct ieee80211com *ic = ni->ni_ic;
3177 struct wpi_vap *wvp = WPI_VAP(ni->ni_vap);
3178 struct wpi_node *wn = WPI_NODE(ni);
3179 struct wpi_node_info node;
3182 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3184 if (wn->id == WPI_ID_UNDEFINED)
3187 memset(&node, 0, sizeof node);
3188 IEEE80211_ADDR_COPY(node.macaddr, ni->ni_macaddr);
3190 node.plcp = (ic->ic_curmode == IEEE80211_MODE_11A) ?
3191 wpi_ridx_to_plcp[WPI_RIDX_OFDM6] : wpi_ridx_to_plcp[WPI_RIDX_CCK1];
3192 node.action = htole32(WPI_ACTION_SET_RATE);
3193 node.antenna = WPI_ANTENNA_BOTH;
3195 DPRINTF(sc, WPI_DEBUG_NODE, "%s: adding node %d (%s)\n", __func__,
3196 wn->id, ether_sprintf(ni->ni_macaddr));
3198 error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 1);
3200 device_printf(sc->sc_dev,
3201 "%s: wpi_cmd() call failed with error code %d\n", __func__,
3206 if (wvp->wv_gtk != 0) {
3207 error = wpi_set_global_keys(ni);
3209 device_printf(sc->sc_dev,
3210 "%s: error while setting global keys\n", __func__);
3219 * Broadcast node is used to send group-addressed and management frames.
3222 wpi_add_broadcast_node(struct wpi_softc *sc, int async)
3224 struct ifnet *ifp = sc->sc_ifp;
3225 struct ieee80211com *ic = ifp->if_l2com;
3226 struct wpi_node_info node;
3228 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3230 memset(&node, 0, sizeof node);
3231 IEEE80211_ADDR_COPY(node.macaddr, ifp->if_broadcastaddr);
3232 node.id = WPI_ID_BROADCAST;
3233 node.plcp = (ic->ic_curmode == IEEE80211_MODE_11A) ?
3234 wpi_ridx_to_plcp[WPI_RIDX_OFDM6] : wpi_ridx_to_plcp[WPI_RIDX_CCK1];
3235 node.action = htole32(WPI_ACTION_SET_RATE);
3236 node.antenna = WPI_ANTENNA_BOTH;
3238 DPRINTF(sc, WPI_DEBUG_NODE, "%s: adding broadcast node\n", __func__);
3240 return wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, async);
3244 wpi_add_sta_node(struct wpi_softc *sc, struct ieee80211_node *ni)
3246 struct wpi_node *wn = WPI_NODE(ni);
3249 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3251 wn->id = wpi_add_node_entry_sta(sc);
3253 if ((error = wpi_add_node(sc, ni)) != 0) {
3254 wpi_del_node_entry(sc, wn->id);
3255 wn->id = WPI_ID_UNDEFINED;
3263 wpi_add_ibss_node(struct wpi_softc *sc, struct ieee80211_node *ni)
3265 struct wpi_node *wn = WPI_NODE(ni);
3268 KASSERT(wn->id == WPI_ID_UNDEFINED,
3269 ("the node %d was added before", wn->id));
3271 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3273 if ((wn->id = wpi_add_node_entry_adhoc(sc)) == WPI_ID_UNDEFINED) {
3274 device_printf(sc->sc_dev, "%s: h/w table is full\n", __func__);
3278 if ((error = wpi_add_node(sc, ni)) != 0) {
3279 wpi_del_node_entry(sc, wn->id);
3280 wn->id = WPI_ID_UNDEFINED;
3288 wpi_del_node(struct wpi_softc *sc, struct ieee80211_node *ni)
3290 struct wpi_node *wn = WPI_NODE(ni);
3291 struct wpi_cmd_del_node node;
3294 KASSERT(wn->id != WPI_ID_UNDEFINED, ("undefined node id passed"));
3296 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3298 memset(&node, 0, sizeof node);
3299 IEEE80211_ADDR_COPY(node.macaddr, ni->ni_macaddr);
3302 DPRINTF(sc, WPI_DEBUG_NODE, "%s: deleting node %d (%s)\n", __func__,
3303 wn->id, ether_sprintf(ni->ni_macaddr));
3305 error = wpi_cmd(sc, WPI_CMD_DEL_NODE, &node, sizeof node, 1);
3307 device_printf(sc->sc_dev,
3308 "%s: could not delete node %u, error %d\n", __func__,
3314 wpi_updateedca(struct ieee80211com *ic)
3316 #define WPI_EXP2(x) ((1 << (x)) - 1) /* CWmin = 2^ECWmin - 1 */
3317 struct wpi_softc *sc = ic->ic_ifp->if_softc;
3318 struct wpi_edca_params cmd;
3321 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
3323 memset(&cmd, 0, sizeof cmd);
3324 cmd.flags = htole32(WPI_EDCA_UPDATE);
3325 for (aci = 0; aci < WME_NUM_AC; aci++) {
3326 const struct wmeParams *ac =
3327 &ic->ic_wme.wme_chanParams.cap_wmeParams[aci];
3328 cmd.ac[aci].aifsn = ac->wmep_aifsn;
3329 cmd.ac[aci].cwmin = htole16(WPI_EXP2(ac->wmep_logcwmin));
3330 cmd.ac[aci].cwmax = htole16(WPI_EXP2(ac->wmep_logcwmax));
3331 cmd.ac[aci].txoplimit =
3332 htole16(IEEE80211_TXOP_TO_US(ac->wmep_txopLimit));
3334 DPRINTF(sc, WPI_DEBUG_EDCA,
3335 "setting WME for queue %d aifsn=%d cwmin=%d cwmax=%d "
3336 "txoplimit=%d\n", aci, cmd.ac[aci].aifsn,
3337 cmd.ac[aci].cwmin, cmd.ac[aci].cwmax,
3338 cmd.ac[aci].txoplimit);
3340 error = wpi_cmd(sc, WPI_CMD_EDCA_PARAMS, &cmd, sizeof cmd, 1);
3342 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
3349 wpi_set_promisc(struct wpi_softc *sc)
3351 struct ifnet *ifp = sc->sc_ifp;
3352 struct ieee80211com *ic = ifp->if_l2com;
3353 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3354 uint32_t promisc_filter;
3356 promisc_filter = WPI_FILTER_CTL;
3357 if (vap != NULL && vap->iv_opmode != IEEE80211_M_HOSTAP)
3358 promisc_filter |= WPI_FILTER_PROMISC;
3360 if (ifp->if_flags & IFF_PROMISC)
3361 sc->rxon.filter |= htole32(promisc_filter);
3363 sc->rxon.filter &= ~htole32(promisc_filter);
3367 wpi_update_promisc(struct ifnet *ifp)
3369 struct wpi_softc *sc = ifp->if_softc;
3372 wpi_set_promisc(sc);
3374 if (wpi_send_rxon(sc, 1, 1) != 0) {
3375 device_printf(sc->sc_dev, "%s: could not send RXON\n",
3378 WPI_RXON_UNLOCK(sc);
3382 wpi_update_mcast(struct ifnet *ifp)
3388 wpi_set_led(struct wpi_softc *sc, uint8_t which, uint8_t off, uint8_t on)
3390 struct wpi_cmd_led led;
3392 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3395 led.unit = htole32(100000); /* on/off in unit of 100ms */
3398 (void)wpi_cmd(sc, WPI_CMD_SET_LED, &led, sizeof led, 1);
3402 wpi_set_timing(struct wpi_softc *sc, struct ieee80211_node *ni)
3404 struct wpi_cmd_timing cmd;
3407 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3409 memset(&cmd, 0, sizeof cmd);
3410 memcpy(&cmd.tstamp, ni->ni_tstamp.data, sizeof (uint64_t));
3411 cmd.bintval = htole16(ni->ni_intval);
3412 cmd.lintval = htole16(10);
3414 /* Compute remaining time until next beacon. */
3415 val = (uint64_t)ni->ni_intval * IEEE80211_DUR_TU;
3416 mod = le64toh(cmd.tstamp) % val;
3417 cmd.binitval = htole32((uint32_t)(val - mod));
3419 DPRINTF(sc, WPI_DEBUG_RESET, "timing bintval=%u tstamp=%ju, init=%u\n",
3420 ni->ni_intval, le64toh(cmd.tstamp), (uint32_t)(val - mod));
3422 return wpi_cmd(sc, WPI_CMD_TIMING, &cmd, sizeof cmd, 1);
3426 * This function is called periodically (every 60 seconds) to adjust output
3427 * power to temperature changes.
3430 wpi_power_calibration(struct wpi_softc *sc)
3434 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3436 /* Update sensor data. */
3437 temp = (int)WPI_READ(sc, WPI_UCODE_GP2);
3438 DPRINTF(sc, WPI_DEBUG_TEMP, "Temp in calibration is: %d\n", temp);
3440 /* Sanity-check read value. */
3441 if (temp < -260 || temp > 25) {
3442 /* This can't be correct, ignore. */
3443 DPRINTF(sc, WPI_DEBUG_TEMP,
3444 "out-of-range temperature reported: %d\n", temp);
3448 DPRINTF(sc, WPI_DEBUG_TEMP, "temperature %d->%d\n", sc->temp, temp);
3450 /* Adjust Tx power if need be. */
3451 if (abs(temp - sc->temp) <= 6)
3456 if (wpi_set_txpower(sc, 1) != 0) {
3457 /* just warn, too bad for the automatic calibration... */
3458 device_printf(sc->sc_dev,"could not adjust Tx power\n");
3463 * Set TX power for current channel.
3466 wpi_set_txpower(struct wpi_softc *sc, int async)
3468 struct wpi_power_group *group;
3469 struct wpi_cmd_txpower cmd;
3471 int idx, is_chan_5ghz, i;
3473 /* Retrieve current channel from last RXON. */
3474 chan = sc->rxon.chan;
3475 is_chan_5ghz = (sc->rxon.flags & htole32(WPI_RXON_24GHZ)) == 0;
3477 /* Find the TX power group to which this channel belongs. */
3479 for (group = &sc->groups[1]; group < &sc->groups[4]; group++)
3480 if (chan <= group->chan)
3483 group = &sc->groups[0];
3485 memset(&cmd, 0, sizeof cmd);
3486 cmd.band = is_chan_5ghz ? WPI_BAND_5GHZ : WPI_BAND_2GHZ;
3487 cmd.chan = htole16(chan);
3489 /* Set TX power for all OFDM and CCK rates. */
3490 for (i = 0; i <= WPI_RIDX_MAX ; i++) {
3491 /* Retrieve TX power for this channel/rate. */
3492 idx = wpi_get_power_index(sc, group, chan, is_chan_5ghz, i);
3494 cmd.rates[i].plcp = wpi_ridx_to_plcp[i];
3497 cmd.rates[i].rf_gain = wpi_rf_gain_5ghz[idx];
3498 cmd.rates[i].dsp_gain = wpi_dsp_gain_5ghz[idx];
3500 cmd.rates[i].rf_gain = wpi_rf_gain_2ghz[idx];
3501 cmd.rates[i].dsp_gain = wpi_dsp_gain_2ghz[idx];
3503 DPRINTF(sc, WPI_DEBUG_TEMP,
3504 "chan %d/ridx %d: power index %d\n", chan, i, idx);
3507 return wpi_cmd(sc, WPI_CMD_TXPOWER, &cmd, sizeof cmd, async);
3511 * Determine Tx power index for a given channel/rate combination.
3512 * This takes into account the regulatory information from EEPROM and the
3513 * current temperature.
3516 wpi_get_power_index(struct wpi_softc *sc, struct wpi_power_group *group,
3517 uint8_t chan, int is_chan_5ghz, int ridx)
3519 /* Fixed-point arithmetic division using a n-bit fractional part. */
3520 #define fdivround(a, b, n) \
3521 ((((1 << n) * (a)) / (b) + (1 << n) / 2) / (1 << n))
3523 /* Linear interpolation. */
3524 #define interpolate(x, x1, y1, x2, y2, n) \
3525 ((y1) + fdivround(((x) - (x1)) * ((y2) - (y1)), (x2) - (x1), n))
3527 struct wpi_power_sample *sample;
3530 /* Default TX power is group maximum TX power minus 3dB. */
3531 pwr = group->maxpwr / 2;
3533 /* Decrease TX power for highest OFDM rates to reduce distortion. */
3535 case WPI_RIDX_OFDM36:
3536 pwr -= is_chan_5ghz ? 5 : 0;
3538 case WPI_RIDX_OFDM48:
3539 pwr -= is_chan_5ghz ? 10 : 7;
3541 case WPI_RIDX_OFDM54:
3542 pwr -= is_chan_5ghz ? 12 : 9;
3546 /* Never exceed the channel maximum allowed TX power. */
3547 pwr = min(pwr, sc->maxpwr[chan]);
3549 /* Retrieve TX power index into gain tables from samples. */
3550 for (sample = group->samples; sample < &group->samples[3]; sample++)
3551 if (pwr > sample[1].power)
3553 /* Fixed-point linear interpolation using a 19-bit fractional part. */
3554 idx = interpolate(pwr, sample[0].power, sample[0].index,
3555 sample[1].power, sample[1].index, 19);
3558 * Adjust power index based on current temperature:
3559 * - if cooler than factory-calibrated: decrease output power
3560 * - if warmer than factory-calibrated: increase output power
3562 idx -= (sc->temp - group->temp) * 11 / 100;
3564 /* Decrease TX power for CCK rates (-5dB). */
3565 if (ridx >= WPI_RIDX_CCK1)
3568 /* Make sure idx stays in a valid range. */
3571 if (idx > WPI_MAX_PWR_INDEX)
3572 return WPI_MAX_PWR_INDEX;
3580 * Set STA mode power saving level (between 0 and 5).
3581 * Level 0 is CAM (Continuously Aware Mode), 5 is for maximum power saving.
3584 wpi_set_pslevel(struct wpi_softc *sc, uint8_t dtim, int level, int async)
3586 struct wpi_pmgt_cmd cmd;
3587 const struct wpi_pmgt *pmgt;
3588 uint32_t max, skip_dtim;
3592 DPRINTF(sc, WPI_DEBUG_PWRSAVE,
3593 "%s: dtim=%d, level=%d, async=%d\n",
3594 __func__, dtim, level, async);
3596 /* Select which PS parameters to use. */
3598 pmgt = &wpi_pmgt[0][level];
3600 pmgt = &wpi_pmgt[1][level];
3602 memset(&cmd, 0, sizeof cmd);
3603 if (level != 0) /* not CAM */
3604 cmd.flags |= htole16(WPI_PS_ALLOW_SLEEP);
3605 /* Retrieve PCIe Active State Power Management (ASPM). */
3606 reg = pci_read_config(sc->sc_dev, sc->sc_cap_off + 0x10, 1);
3607 if (!(reg & 0x1)) /* L0s Entry disabled. */
3608 cmd.flags |= htole16(WPI_PS_PCI_PMGT);
3610 cmd.rxtimeout = htole32(pmgt->rxtimeout * IEEE80211_DUR_TU);
3611 cmd.txtimeout = htole32(pmgt->txtimeout * IEEE80211_DUR_TU);
3617 skip_dtim = pmgt->skip_dtim;
3619 if (skip_dtim != 0) {
3620 cmd.flags |= htole16(WPI_PS_SLEEP_OVER_DTIM);
3621 max = pmgt->intval[4];
3622 if (max == (uint32_t)-1)
3623 max = dtim * (skip_dtim + 1);
3624 else if (max > dtim)
3625 max = (max / dtim) * dtim;
3629 for (i = 0; i < 5; i++)
3630 cmd.intval[i] = htole32(MIN(max, pmgt->intval[i]));
3632 return wpi_cmd(sc, WPI_CMD_SET_POWER_MODE, &cmd, sizeof cmd, async);
3636 wpi_send_btcoex(struct wpi_softc *sc)
3638 struct wpi_bluetooth cmd;
3640 memset(&cmd, 0, sizeof cmd);
3641 cmd.flags = WPI_BT_COEX_MODE_4WIRE;
3642 cmd.lead_time = WPI_BT_LEAD_TIME_DEF;
3643 cmd.max_kill = WPI_BT_MAX_KILL_DEF;
3644 DPRINTF(sc, WPI_DEBUG_RESET, "%s: configuring bluetooth coexistence\n",
3646 return wpi_cmd(sc, WPI_CMD_BT_COEX, &cmd, sizeof(cmd), 0);
3650 wpi_send_rxon(struct wpi_softc *sc, int assoc, int async)
3655 WPI_RXON_LOCK_ASSERT(sc);
3657 if (assoc && wpi_check_bss_filter(sc) != 0) {
3658 struct wpi_assoc rxon_assoc;
3660 rxon_assoc.flags = sc->rxon.flags;
3661 rxon_assoc.filter = sc->rxon.filter;
3662 rxon_assoc.ofdm_mask = sc->rxon.ofdm_mask;
3663 rxon_assoc.cck_mask = sc->rxon.cck_mask;
3664 rxon_assoc.reserved = 0;
3666 error = wpi_cmd(sc, WPI_CMD_RXON_ASSOC, &rxon_assoc,
3667 sizeof (struct wpi_assoc), async);
3669 device_printf(sc->sc_dev,
3670 "RXON_ASSOC command failed, error %d\n", error);
3676 error = wpi_cmd(sc, WPI_CMD_RXON, &sc->rxon,
3677 sizeof (struct wpi_rxon), async);
3679 wpi_clear_node_table(sc);
3682 error = wpi_cmd(sc, WPI_CMD_RXON, &sc->rxon,
3683 sizeof (struct wpi_rxon), async);
3685 wpi_clear_node_table(sc);
3689 device_printf(sc->sc_dev,
3690 "RXON command failed, error %d\n", error);
3694 /* Add broadcast node. */
3695 error = wpi_add_broadcast_node(sc, async);
3697 device_printf(sc->sc_dev,
3698 "could not add broadcast node, error %d\n", error);
3703 /* Configuration has changed, set Tx power accordingly. */
3704 if ((error = wpi_set_txpower(sc, async)) != 0) {
3705 device_printf(sc->sc_dev,
3706 "%s: could not set TX power, error %d\n", __func__, error);
3714 * Configure the card to listen to a particular channel, this transisions the
3715 * card in to being able to receive frames from remote devices.
3718 wpi_config(struct wpi_softc *sc)
3720 struct ifnet *ifp = sc->sc_ifp;
3721 struct ieee80211com *ic = ifp->if_l2com;
3722 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3723 struct ieee80211_channel *c = ic->ic_curchan;
3726 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
3728 /* Set power saving level to CAM during initialization. */
3729 if ((error = wpi_set_pslevel(sc, 0, 0, 0)) != 0) {
3730 device_printf(sc->sc_dev,
3731 "%s: could not set power saving level\n", __func__);
3735 /* Configure bluetooth coexistence. */
3736 if ((error = wpi_send_btcoex(sc)) != 0) {
3737 device_printf(sc->sc_dev,
3738 "could not configure bluetooth coexistence\n");
3742 /* Configure adapter. */
3743 memset(&sc->rxon, 0, sizeof (struct wpi_rxon));
3744 IEEE80211_ADDR_COPY(sc->rxon.myaddr, vap->iv_myaddr);
3746 /* Set default channel. */
3747 sc->rxon.chan = ieee80211_chan2ieee(ic, c);
3748 sc->rxon.flags = htole32(WPI_RXON_TSF | WPI_RXON_CTS_TO_SELF);
3749 if (IEEE80211_IS_CHAN_2GHZ(c))
3750 sc->rxon.flags |= htole32(WPI_RXON_AUTO | WPI_RXON_24GHZ);
3752 sc->rxon.filter = WPI_FILTER_MULTICAST;
3753 switch (ic->ic_opmode) {
3754 case IEEE80211_M_STA:
3755 sc->rxon.mode = WPI_MODE_STA;
3757 case IEEE80211_M_IBSS:
3758 sc->rxon.mode = WPI_MODE_IBSS;
3759 sc->rxon.filter |= WPI_FILTER_BEACON;
3761 case IEEE80211_M_HOSTAP:
3762 /* XXX workaround for beaconing */
3763 sc->rxon.mode = WPI_MODE_IBSS;
3764 sc->rxon.filter |= WPI_FILTER_ASSOC | WPI_FILTER_PROMISC;
3766 case IEEE80211_M_AHDEMO:
3767 /* XXX workaround for passive channels selection */
3768 sc->rxon.mode = WPI_MODE_HOSTAP;
3770 case IEEE80211_M_MONITOR:
3771 sc->rxon.mode = WPI_MODE_MONITOR;
3774 device_printf(sc->sc_dev, "unknown opmode %d\n",
3778 sc->rxon.filter = htole32(sc->rxon.filter);
3779 wpi_set_promisc(sc);
3780 sc->rxon.cck_mask = 0x0f; /* not yet negotiated */
3781 sc->rxon.ofdm_mask = 0xff; /* not yet negotiated */
3783 /* XXX Current configuration may be unusable. */
3784 if (IEEE80211_IS_CHAN_NOADHOC(c) && sc->rxon.mode == WPI_MODE_IBSS) {
3785 device_printf(sc->sc_dev,
3786 "%s: invalid channel (%d) selected for IBSS mode\n",
3787 __func__, ieee80211_chan2ieee(ic, c));
3791 if ((error = wpi_send_rxon(sc, 0, 0)) != 0) {
3792 device_printf(sc->sc_dev, "%s: could not send RXON\n",
3797 /* Setup rate scalling. */
3798 if ((error = wpi_mrr_setup(sc)) != 0) {
3799 device_printf(sc->sc_dev, "could not setup MRR, error %d\n",
3804 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
3810 wpi_get_active_dwell_time(struct wpi_softc *sc,
3811 struct ieee80211_channel *c, uint8_t n_probes)
3813 /* No channel? Default to 2GHz settings. */
3814 if (c == NULL || IEEE80211_IS_CHAN_2GHZ(c)) {
3815 return (WPI_ACTIVE_DWELL_TIME_2GHZ +
3816 WPI_ACTIVE_DWELL_FACTOR_2GHZ * (n_probes + 1));
3819 /* 5GHz dwell time. */
3820 return (WPI_ACTIVE_DWELL_TIME_5GHZ +
3821 WPI_ACTIVE_DWELL_FACTOR_5GHZ * (n_probes + 1));
3825 * Limit the total dwell time.
3827 * Returns the dwell time in milliseconds.
3830 wpi_limit_dwell(struct wpi_softc *sc, uint16_t dwell_time)
3832 struct ieee80211com *ic = sc->sc_ifp->if_l2com;
3833 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3836 /* bintval is in TU (1.024mS) */
3838 bintval = vap->iv_bss->ni_intval;
3841 * If it's non-zero, we should calculate the minimum of
3842 * it and the DWELL_BASE.
3844 * XXX Yes, the math should take into account that bintval
3845 * is 1.024mS, not 1mS..
3848 DPRINTF(sc, WPI_DEBUG_SCAN, "%s: bintval=%d\n", __func__,
3850 return (MIN(dwell_time, bintval - WPI_CHANNEL_TUNE_TIME * 2));
3853 /* No association context? Default. */
3858 wpi_get_passive_dwell_time(struct wpi_softc *sc, struct ieee80211_channel *c)
3862 if (c == NULL || IEEE80211_IS_CHAN_2GHZ(c))
3863 passive = WPI_PASSIVE_DWELL_BASE + WPI_PASSIVE_DWELL_TIME_2GHZ;
3865 passive = WPI_PASSIVE_DWELL_BASE + WPI_PASSIVE_DWELL_TIME_5GHZ;
3867 /* Clamp to the beacon interval if we're associated. */
3868 return (wpi_limit_dwell(sc, passive));
3872 wpi_get_scan_pause_time(uint32_t time, uint16_t bintval)
3874 uint32_t mod = (time % bintval) * IEEE80211_DUR_TU;
3875 uint32_t nbeacons = time / bintval;
3877 if (mod > WPI_PAUSE_MAX_TIME)
3878 mod = WPI_PAUSE_MAX_TIME;
3880 return WPI_PAUSE_SCAN(nbeacons, mod);
3884 * Send a scan request to the firmware.
3887 wpi_scan(struct wpi_softc *sc, struct ieee80211_channel *c)
3889 struct ifnet *ifp = sc->sc_ifp;
3890 struct ieee80211com *ic = ifp->if_l2com;
3891 struct ieee80211_scan_state *ss = ic->ic_scan;
3892 struct ieee80211vap *vap = ss->ss_vap;
3893 struct wpi_scan_hdr *hdr;
3894 struct wpi_cmd_data *tx;
3895 struct wpi_scan_essid *essids;
3896 struct wpi_scan_chan *chan;
3897 struct ieee80211_frame *wh;
3898 struct ieee80211_rateset *rs;
3899 uint16_t dwell_active, dwell_passive;
3901 int bgscan, bintval, buflen, error, i, nssid;
3903 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
3906 * We are absolutely not allowed to send a scan command when another
3907 * scan command is pending.
3909 if (callout_pending(&sc->scan_timeout)) {
3910 device_printf(sc->sc_dev, "%s: called whilst scanning!\n",
3916 bgscan = wpi_check_bss_filter(sc);
3917 bintval = vap->iv_bss->ni_intval;
3919 bintval < WPI_QUIET_TIME_DEFAULT + WPI_CHANNEL_TUNE_TIME * 2) {
3924 buf = malloc(WPI_SCAN_MAXSZ, M_DEVBUF, M_NOWAIT | M_ZERO);
3926 device_printf(sc->sc_dev,
3927 "%s: could not allocate buffer for scan command\n",
3932 hdr = (struct wpi_scan_hdr *)buf;
3935 * Move to the next channel if no packets are received within 10 msecs
3936 * after sending the probe request.
3938 hdr->quiet_time = htole16(WPI_QUIET_TIME_DEFAULT);
3939 hdr->quiet_threshold = htole16(1);
3943 * Max needs to be greater than active and passive and quiet!
3944 * It's also in microseconds!
3946 hdr->max_svc = htole32(250 * IEEE80211_DUR_TU);
3947 hdr->pause_svc = htole32(wpi_get_scan_pause_time(100,
3951 hdr->filter = htole32(WPI_FILTER_MULTICAST | WPI_FILTER_BEACON);
3953 tx = (struct wpi_cmd_data *)(hdr + 1);
3954 tx->flags = htole32(WPI_TX_AUTO_SEQ);
3955 tx->id = WPI_ID_BROADCAST;
3956 tx->lifetime = htole32(WPI_LIFETIME_INFINITE);
3958 if (IEEE80211_IS_CHAN_5GHZ(c)) {
3959 /* Send probe requests at 6Mbps. */
3960 tx->plcp = wpi_ridx_to_plcp[WPI_RIDX_OFDM6];
3961 rs = &ic->ic_sup_rates[IEEE80211_MODE_11A];
3963 hdr->flags = htole32(WPI_RXON_24GHZ | WPI_RXON_AUTO);
3964 /* Send probe requests at 1Mbps. */
3965 tx->plcp = wpi_ridx_to_plcp[WPI_RIDX_CCK1];
3966 rs = &ic->ic_sup_rates[IEEE80211_MODE_11G];
3969 essids = (struct wpi_scan_essid *)(tx + 1);
3970 nssid = MIN(ss->ss_nssid, WPI_SCAN_MAX_ESSIDS);
3971 for (i = 0; i < nssid; i++) {
3972 essids[i].id = IEEE80211_ELEMID_SSID;
3973 essids[i].len = MIN(ss->ss_ssid[i].len, IEEE80211_NWID_LEN);
3974 memcpy(essids[i].data, ss->ss_ssid[i].ssid, essids[i].len);
3976 if (sc->sc_debug & WPI_DEBUG_SCAN) {
3977 printf("Scanning Essid: ");
3978 ieee80211_print_essid(essids[i].data, essids[i].len);
3985 * Build a probe request frame. Most of the following code is a
3986 * copy & paste of what is done in net80211.
3988 wh = (struct ieee80211_frame *)(essids + WPI_SCAN_MAX_ESSIDS);
3989 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT |
3990 IEEE80211_FC0_SUBTYPE_PROBE_REQ;
3991 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS;
3992 IEEE80211_ADDR_COPY(wh->i_addr1, ifp->if_broadcastaddr);
3993 IEEE80211_ADDR_COPY(wh->i_addr2, vap->iv_myaddr);
3994 IEEE80211_ADDR_COPY(wh->i_addr3, ifp->if_broadcastaddr);
3995 *(uint16_t *)&wh->i_dur[0] = 0; /* filled by h/w */
3996 *(uint16_t *)&wh->i_seq[0] = 0; /* filled by h/w */
3998 frm = (uint8_t *)(wh + 1);
3999 frm = ieee80211_add_ssid(frm, NULL, 0);
4000 frm = ieee80211_add_rates(frm, rs);
4001 if (rs->rs_nrates > IEEE80211_RATE_SIZE)
4002 frm = ieee80211_add_xrates(frm, rs);
4004 /* Set length of probe request. */
4005 tx->len = htole16(frm - (uint8_t *)wh);
4008 * Construct information about the channel that we
4009 * want to scan. The firmware expects this to be directly
4010 * after the scan probe request
4012 chan = (struct wpi_scan_chan *)frm;
4013 chan->chan = htole16(ieee80211_chan2ieee(ic, c));
4016 hdr->crc_threshold = WPI_SCAN_CRC_TH_DEFAULT;
4017 chan->flags |= WPI_CHAN_NPBREQS(nssid);
4019 hdr->crc_threshold = WPI_SCAN_CRC_TH_NEVER;
4021 if (!IEEE80211_IS_CHAN_PASSIVE(c))
4022 chan->flags |= WPI_CHAN_ACTIVE;
4025 * Calculate the active/passive dwell times.
4028 dwell_active = wpi_get_active_dwell_time(sc, c, nssid);
4029 dwell_passive = wpi_get_passive_dwell_time(sc, c);
4031 /* Make sure they're valid. */
4032 if (dwell_active > dwell_passive)
4033 dwell_active = dwell_passive;
4035 chan->active = htole16(dwell_active);
4036 chan->passive = htole16(dwell_passive);
4038 chan->dsp_gain = 0x6e; /* Default level */
4040 if (IEEE80211_IS_CHAN_5GHZ(c))
4041 chan->rf_gain = 0x3b;
4043 chan->rf_gain = 0x28;
4045 DPRINTF(sc, WPI_DEBUG_SCAN, "Scanning %u Passive: %d\n",
4046 chan->chan, IEEE80211_IS_CHAN_PASSIVE(c));
4050 if (hdr->nchan == 1 && sc->rxon.chan == chan->chan) {
4051 /* XXX Force probe request transmission. */
4052 memcpy(chan + 1, chan, sizeof (struct wpi_scan_chan));
4056 /* Reduce unnecessary delay. */
4058 chan->passive = chan->active = hdr->quiet_time;
4065 buflen = (uint8_t *)chan - buf;
4066 hdr->len = htole16(buflen);
4068 DPRINTF(sc, WPI_DEBUG_CMD, "sending scan command nchan=%d\n",
4070 error = wpi_cmd(sc, WPI_CMD_SCAN, buf, buflen, 1);
4071 free(buf, M_DEVBUF);
4076 callout_reset(&sc->scan_timeout, 5*hz, wpi_scan_timeout, sc);
4078 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
4082 fail: DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
4088 wpi_auth(struct wpi_softc *sc, struct ieee80211vap *vap)
4090 struct ieee80211com *ic = vap->iv_ic;
4091 struct ieee80211_node *ni = vap->iv_bss;
4092 struct ieee80211_channel *c = ni->ni_chan;
4097 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
4099 /* Update adapter configuration. */
4100 sc->rxon.associd = 0;
4101 sc->rxon.filter &= ~htole32(WPI_FILTER_BSS);
4102 IEEE80211_ADDR_COPY(sc->rxon.bssid, ni->ni_bssid);
4103 sc->rxon.chan = ieee80211_chan2ieee(ic, c);
4104 sc->rxon.flags = htole32(WPI_RXON_TSF | WPI_RXON_CTS_TO_SELF);
4105 if (IEEE80211_IS_CHAN_2GHZ(c))
4106 sc->rxon.flags |= htole32(WPI_RXON_AUTO | WPI_RXON_24GHZ);
4107 if (ic->ic_flags & IEEE80211_F_SHSLOT)
4108 sc->rxon.flags |= htole32(WPI_RXON_SHSLOT);
4109 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
4110 sc->rxon.flags |= htole32(WPI_RXON_SHPREAMBLE);
4111 if (IEEE80211_IS_CHAN_A(c)) {
4112 sc->rxon.cck_mask = 0;
4113 sc->rxon.ofdm_mask = 0x15;
4114 } else if (IEEE80211_IS_CHAN_B(c)) {
4115 sc->rxon.cck_mask = 0x03;
4116 sc->rxon.ofdm_mask = 0;
4118 /* Assume 802.11b/g. */
4119 sc->rxon.cck_mask = 0x0f;
4120 sc->rxon.ofdm_mask = 0x15;
4123 DPRINTF(sc, WPI_DEBUG_STATE, "rxon chan %d flags %x cck %x ofdm %x\n",
4124 sc->rxon.chan, sc->rxon.flags, sc->rxon.cck_mask,
4125 sc->rxon.ofdm_mask);
4127 if ((error = wpi_send_rxon(sc, 0, 1)) != 0) {
4128 device_printf(sc->sc_dev, "%s: could not send RXON\n",
4132 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
4134 WPI_RXON_UNLOCK(sc);
4140 wpi_config_beacon(struct wpi_vap *wvp)
4142 struct ieee80211com *ic = wvp->wv_vap.iv_ic;
4143 struct ieee80211_beacon_offsets *bo = &wvp->wv_boff;
4144 struct wpi_buf *bcn = &wvp->wv_bcbuf;
4145 struct wpi_softc *sc = ic->ic_ifp->if_softc;
4146 struct wpi_cmd_beacon *cmd = (struct wpi_cmd_beacon *)&bcn->data;
4147 struct ieee80211_tim_ie *tie;
4152 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4154 WPI_VAP_LOCK_ASSERT(wvp);
4156 cmd->len = htole16(bcn->m->m_pkthdr.len);
4157 cmd->plcp = (ic->ic_curmode == IEEE80211_MODE_11A) ?
4158 wpi_ridx_to_plcp[WPI_RIDX_OFDM6] : wpi_ridx_to_plcp[WPI_RIDX_CCK1];
4160 /* XXX seems to be unused */
4161 if (*(bo->bo_tim) == IEEE80211_ELEMID_TIM) {
4162 tie = (struct ieee80211_tim_ie *) bo->bo_tim;
4163 ptr = mtod(bcn->m, uint8_t *);
4165 cmd->tim = htole16(bo->bo_tim - ptr);
4166 cmd->timsz = tie->tim_len;
4169 /* Necessary for recursion in ieee80211_beacon_update(). */
4171 bcn->m = m_dup(m, M_NOWAIT);
4172 if (bcn->m == NULL) {
4173 device_printf(sc->sc_dev,
4174 "%s: could not copy beacon frame\n", __func__);
4179 if ((error = wpi_cmd2(sc, bcn)) != 0) {
4180 device_printf(sc->sc_dev,
4181 "%s: could not update beacon frame, error %d", __func__,
4192 wpi_setup_beacon(struct wpi_softc *sc, struct ieee80211_node *ni)
4194 struct wpi_vap *wvp = WPI_VAP(ni->ni_vap);
4195 struct wpi_buf *bcn = &wvp->wv_bcbuf;
4196 struct ieee80211_beacon_offsets *bo = &wvp->wv_boff;
4200 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4202 if (ni->ni_chan == IEEE80211_CHAN_ANYC)
4205 m = ieee80211_beacon_alloc(ni, bo);
4207 device_printf(sc->sc_dev,
4208 "%s: could not allocate beacon frame\n", __func__);
4218 error = wpi_config_beacon(wvp);
4219 WPI_VAP_UNLOCK(wvp);
4225 wpi_update_beacon(struct ieee80211vap *vap, int item)
4227 struct wpi_softc *sc = vap->iv_ic->ic_ifp->if_softc;
4228 struct wpi_vap *wvp = WPI_VAP(vap);
4229 struct wpi_buf *bcn = &wvp->wv_bcbuf;
4230 struct ieee80211_beacon_offsets *bo = &wvp->wv_boff;
4231 struct ieee80211_node *ni = vap->iv_bss;
4234 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
4237 if (bcn->m == NULL) {
4238 bcn->m = ieee80211_beacon_alloc(ni, bo);
4239 if (bcn->m == NULL) {
4240 device_printf(sc->sc_dev,
4241 "%s: could not allocate beacon frame\n", __func__);
4243 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR,
4246 WPI_VAP_UNLOCK(wvp);
4250 WPI_VAP_UNLOCK(wvp);
4252 if (item == IEEE80211_BEACON_TIM)
4253 mcast = 1; /* TODO */
4255 setbit(bo->bo_flags, item);
4256 ieee80211_beacon_update(ni, bo, bcn->m, mcast);
4259 wpi_config_beacon(wvp);
4260 WPI_VAP_UNLOCK(wvp);
4262 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
4266 wpi_newassoc(struct ieee80211_node *ni, int isnew)
4268 struct ieee80211vap *vap = ni->ni_vap;
4269 struct wpi_softc *sc = ni->ni_ic->ic_ifp->if_softc;
4270 struct wpi_node *wn = WPI_NODE(ni);
4275 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4277 if (vap->iv_opmode != IEEE80211_M_STA && wn->id == WPI_ID_UNDEFINED) {
4278 if ((error = wpi_add_ibss_node(sc, ni)) != 0) {
4279 device_printf(sc->sc_dev,
4280 "%s: could not add IBSS node, error %d\n",
4288 wpi_run(struct wpi_softc *sc, struct ieee80211vap *vap)
4290 struct ieee80211com *ic = vap->iv_ic;
4291 struct ieee80211_node *ni = vap->iv_bss;
4292 struct ieee80211_channel *c = ni->ni_chan;
4295 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
4297 if (vap->iv_opmode == IEEE80211_M_MONITOR) {
4298 /* Link LED blinks while monitoring. */
4299 wpi_set_led(sc, WPI_LED_LINK, 5, 5);
4303 /* XXX kernel panic workaround */
4304 if (c == IEEE80211_CHAN_ANYC) {
4305 device_printf(sc->sc_dev, "%s: incomplete configuration\n",
4310 if ((error = wpi_set_timing(sc, ni)) != 0) {
4311 device_printf(sc->sc_dev,
4312 "%s: could not set timing, error %d\n", __func__, error);
4316 /* Update adapter configuration. */
4318 IEEE80211_ADDR_COPY(sc->rxon.bssid, ni->ni_bssid);
4319 sc->rxon.associd = htole16(IEEE80211_NODE_AID(ni));
4320 sc->rxon.chan = ieee80211_chan2ieee(ic, c);
4321 sc->rxon.flags = htole32(WPI_RXON_TSF | WPI_RXON_CTS_TO_SELF);
4322 if (IEEE80211_IS_CHAN_2GHZ(c))
4323 sc->rxon.flags |= htole32(WPI_RXON_AUTO | WPI_RXON_24GHZ);
4324 if (ic->ic_flags & IEEE80211_F_SHSLOT)
4325 sc->rxon.flags |= htole32(WPI_RXON_SHSLOT);
4326 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
4327 sc->rxon.flags |= htole32(WPI_RXON_SHPREAMBLE);
4328 if (IEEE80211_IS_CHAN_A(c)) {
4329 sc->rxon.cck_mask = 0;
4330 sc->rxon.ofdm_mask = 0x15;
4331 } else if (IEEE80211_IS_CHAN_B(c)) {
4332 sc->rxon.cck_mask = 0x03;
4333 sc->rxon.ofdm_mask = 0;
4335 /* Assume 802.11b/g. */
4336 sc->rxon.cck_mask = 0x0f;
4337 sc->rxon.ofdm_mask = 0x15;
4339 sc->rxon.filter |= htole32(WPI_FILTER_BSS);
4341 DPRINTF(sc, WPI_DEBUG_STATE, "rxon chan %d flags %x\n",
4342 sc->rxon.chan, sc->rxon.flags);
4344 if ((error = wpi_send_rxon(sc, 0, 1)) != 0) {
4345 device_printf(sc->sc_dev, "%s: could not send RXON\n",
4350 /* Start periodic calibration timer. */
4351 callout_reset(&sc->calib_to, 60*hz, wpi_calib_timeout, sc);
4353 WPI_RXON_UNLOCK(sc);
4355 if (vap->iv_opmode == IEEE80211_M_IBSS ||
4356 vap->iv_opmode == IEEE80211_M_HOSTAP) {
4357 if ((error = wpi_setup_beacon(sc, ni)) != 0) {
4358 device_printf(sc->sc_dev,
4359 "%s: could not setup beacon, error %d\n", __func__,
4365 if (vap->iv_opmode == IEEE80211_M_STA) {
4368 error = wpi_add_sta_node(sc, ni);
4371 device_printf(sc->sc_dev,
4372 "%s: could not add BSS node, error %d\n", __func__,
4378 /* Link LED always on while associated. */
4379 wpi_set_led(sc, WPI_LED_LINK, 0, 1);
4381 /* Enable power-saving mode if requested by user. */
4382 if ((vap->iv_flags & IEEE80211_F_PMGTON) &&
4383 vap->iv_opmode != IEEE80211_M_IBSS)
4384 (void)wpi_set_pslevel(sc, 0, 3, 1);
4386 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
4392 wpi_load_key(struct ieee80211_node *ni, const struct ieee80211_key *k)
4394 const struct ieee80211_cipher *cip = k->wk_cipher;
4395 struct ieee80211vap *vap = ni->ni_vap;
4396 struct wpi_softc *sc = ni->ni_ic->ic_ifp->if_softc;
4397 struct wpi_node *wn = WPI_NODE(ni);
4398 struct wpi_node_info node;
4402 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4404 if (wpi_check_node_entry(sc, wn->id) == 0) {
4405 device_printf(sc->sc_dev, "%s: node does not exist\n",
4410 switch (cip->ic_cipher) {
4411 case IEEE80211_CIPHER_AES_CCM:
4412 kflags = WPI_KFLAG_CCMP;
4416 device_printf(sc->sc_dev, "%s: unknown cipher %d\n", __func__,
4421 kflags |= WPI_KFLAG_KID(k->wk_keyix);
4422 if (k->wk_flags & IEEE80211_KEY_GROUP)
4423 kflags |= WPI_KFLAG_MULTICAST;
4425 memset(&node, 0, sizeof node);
4427 node.control = WPI_NODE_UPDATE;
4428 node.flags = WPI_FLAG_KEY_SET;
4429 node.kflags = htole16(kflags);
4430 memcpy(node.key, k->wk_key, k->wk_keylen);
4432 DPRINTF(sc, WPI_DEBUG_KEY,
4433 "%s: setting %s key id %d for node %d (%s)\n", __func__,
4434 (kflags & WPI_KFLAG_MULTICAST) ? "group" : "ucast", k->wk_keyix,
4435 node.id, ether_sprintf(ni->ni_macaddr));
4437 error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 1);
4439 device_printf(sc->sc_dev, "can't update node info, error %d\n",
4444 if (!(kflags & WPI_KFLAG_MULTICAST) && &vap->iv_nw_keys[0] <= k &&
4445 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]) {
4446 kflags |= WPI_KFLAG_MULTICAST;
4447 node.kflags = htole16(kflags);
4456 wpi_load_key_cb(void *arg, struct ieee80211_node *ni)
4458 const struct ieee80211_key *k = arg;
4459 struct ieee80211vap *vap = ni->ni_vap;
4460 struct wpi_softc *sc = ni->ni_ic->ic_ifp->if_softc;
4461 struct wpi_node *wn = WPI_NODE(ni);
4464 if (vap->iv_bss == ni && wn->id == WPI_ID_UNDEFINED)
4468 error = wpi_load_key(ni, k);
4472 device_printf(sc->sc_dev, "%s: error while setting key\n",
4478 wpi_set_global_keys(struct ieee80211_node *ni)
4480 struct ieee80211vap *vap = ni->ni_vap;
4481 struct ieee80211_key *wk = &vap->iv_nw_keys[0];
4484 for (; wk < &vap->iv_nw_keys[IEEE80211_WEP_NKID] && error; wk++)
4485 if (wk->wk_keyix != IEEE80211_KEYIX_NONE)
4486 error = wpi_load_key(ni, wk);
4492 wpi_del_key(struct ieee80211_node *ni, const struct ieee80211_key *k)
4494 struct ieee80211vap *vap = ni->ni_vap;
4495 struct wpi_softc *sc = ni->ni_ic->ic_ifp->if_softc;
4496 struct wpi_node *wn = WPI_NODE(ni);
4497 struct wpi_node_info node;
4501 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4503 if (wpi_check_node_entry(sc, wn->id) == 0) {
4504 DPRINTF(sc, WPI_DEBUG_KEY, "%s: node was removed\n", __func__);
4505 return 1; /* Nothing to do. */
4508 kflags = WPI_KFLAG_KID(k->wk_keyix);
4509 if (k->wk_flags & IEEE80211_KEY_GROUP)
4510 kflags |= WPI_KFLAG_MULTICAST;
4512 memset(&node, 0, sizeof node);
4514 node.control = WPI_NODE_UPDATE;
4515 node.flags = WPI_FLAG_KEY_SET;
4516 node.kflags = htole16(kflags);
4518 DPRINTF(sc, WPI_DEBUG_KEY, "%s: deleting %s key %d for node %d (%s)\n",
4519 __func__, (kflags & WPI_KFLAG_MULTICAST) ? "group" : "ucast",
4520 k->wk_keyix, node.id, ether_sprintf(ni->ni_macaddr));
4522 error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 1);
4524 device_printf(sc->sc_dev, "can't update node info, error %d\n",
4529 if (!(kflags & WPI_KFLAG_MULTICAST) && &vap->iv_nw_keys[0] <= k &&
4530 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]) {
4531 kflags |= WPI_KFLAG_MULTICAST;
4532 node.kflags = htole16(kflags);
4541 wpi_del_key_cb(void *arg, struct ieee80211_node *ni)
4543 const struct ieee80211_key *k = arg;
4544 struct ieee80211vap *vap = ni->ni_vap;
4545 struct wpi_softc *sc = ni->ni_ic->ic_ifp->if_softc;
4546 struct wpi_node *wn = WPI_NODE(ni);
4549 if (vap->iv_bss == ni && wn->id == WPI_ID_UNDEFINED)
4553 error = wpi_del_key(ni, k);
4557 device_printf(sc->sc_dev, "%s: error while deleting key\n",
4563 wpi_process_key(struct ieee80211vap *vap, const struct ieee80211_key *k,
4566 struct ieee80211com *ic = vap->iv_ic;
4567 struct wpi_softc *sc = ic->ic_ifp->if_softc;
4568 struct wpi_vap *wvp = WPI_VAP(vap);
4569 struct ieee80211_node *ni;
4570 int error, ni_ref = 0;
4572 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4574 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) {
4579 if (!(k->wk_flags & IEEE80211_KEY_RECV)) {
4580 /* XMIT keys are handled in wpi_tx_data(). */
4584 /* Handle group keys. */
4585 if (&vap->iv_nw_keys[0] <= k &&
4586 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]) {
4589 wvp->wv_gtk |= WPI_VAP_KEY(k->wk_keyix);
4591 wvp->wv_gtk &= ~WPI_VAP_KEY(k->wk_keyix);
4594 if (vap->iv_state == IEEE80211_S_RUN) {
4595 ieee80211_iterate_nodes(&ic->ic_sta,
4596 set ? wpi_load_key_cb : wpi_del_key_cb,
4597 __DECONST(void *, k));
4603 switch (vap->iv_opmode) {
4604 case IEEE80211_M_STA:
4608 case IEEE80211_M_IBSS:
4609 case IEEE80211_M_AHDEMO:
4610 case IEEE80211_M_HOSTAP:
4611 ni = ieee80211_find_vap_node(&ic->ic_sta, vap, k->wk_macaddr);
4613 return 0; /* should not happen */
4619 device_printf(sc->sc_dev, "%s: unknown opmode %d\n", __func__,
4626 error = wpi_load_key(ni, k);
4628 error = wpi_del_key(ni, k);
4632 ieee80211_node_decref(ni);
4638 wpi_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k,
4639 const uint8_t mac[IEEE80211_ADDR_LEN])
4641 return wpi_process_key(vap, k, 1);
4645 wpi_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k)
4647 return wpi_process_key(vap, k, 0);
4651 * This function is called after the runtime firmware notifies us of its
4652 * readiness (called in a process context).
4655 wpi_post_alive(struct wpi_softc *sc)
4659 /* Check (again) that the radio is not disabled. */
4660 if ((error = wpi_nic_lock(sc)) != 0)
4663 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4665 /* NB: Runtime firmware must be up and running. */
4666 if (!(wpi_prph_read(sc, WPI_APMG_RFKILL) & 1)) {
4667 device_printf(sc->sc_dev,
4668 "RF switch: radio disabled (%s)\n", __func__);
4670 return EPERM; /* :-) */
4674 /* Wait for thermal sensor to calibrate. */
4675 for (ntries = 0; ntries < 1000; ntries++) {
4676 if ((sc->temp = (int)WPI_READ(sc, WPI_UCODE_GP2)) != 0)
4681 if (ntries == 1000) {
4682 device_printf(sc->sc_dev,
4683 "timeout waiting for thermal sensor calibration\n");
4687 DPRINTF(sc, WPI_DEBUG_TEMP, "temperature %d\n", sc->temp);
4692 * The firmware boot code is small and is intended to be copied directly into
4693 * the NIC internal memory (no DMA transfer).
4696 wpi_load_bootcode(struct wpi_softc *sc, const uint8_t *ucode, int size)
4700 DPRINTF(sc, WPI_DEBUG_HW, "Loading microcode size 0x%x\n", size);
4702 size /= sizeof (uint32_t);
4704 if ((error = wpi_nic_lock(sc)) != 0)
4707 /* Copy microcode image into NIC memory. */
4708 wpi_prph_write_region_4(sc, WPI_BSM_SRAM_BASE,
4709 (const uint32_t *)ucode, size);
4711 wpi_prph_write(sc, WPI_BSM_WR_MEM_SRC, 0);
4712 wpi_prph_write(sc, WPI_BSM_WR_MEM_DST, WPI_FW_TEXT_BASE);
4713 wpi_prph_write(sc, WPI_BSM_WR_DWCOUNT, size);
4715 /* Start boot load now. */
4716 wpi_prph_write(sc, WPI_BSM_WR_CTRL, WPI_BSM_WR_CTRL_START);
4718 /* Wait for transfer to complete. */
4719 for (ntries = 0; ntries < 1000; ntries++) {
4720 uint32_t status = WPI_READ(sc, WPI_FH_TX_STATUS);
4721 DPRINTF(sc, WPI_DEBUG_HW,
4722 "firmware status=0x%x, val=0x%x, result=0x%x\n", status,
4723 WPI_FH_TX_STATUS_IDLE(6),
4724 status & WPI_FH_TX_STATUS_IDLE(6));
4725 if (status & WPI_FH_TX_STATUS_IDLE(6)) {
4726 DPRINTF(sc, WPI_DEBUG_HW,
4727 "Status Match! - ntries = %d\n", ntries);
4732 if (ntries == 1000) {
4733 device_printf(sc->sc_dev, "%s: could not load boot firmware\n",
4739 /* Enable boot after power up. */
4740 wpi_prph_write(sc, WPI_BSM_WR_CTRL, WPI_BSM_WR_CTRL_START_EN);
4747 wpi_load_firmware(struct wpi_softc *sc)
4749 struct wpi_fw_info *fw = &sc->fw;
4750 struct wpi_dma_info *dma = &sc->fw_dma;
4753 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4755 /* Copy initialization sections into pre-allocated DMA-safe memory. */
4756 memcpy(dma->vaddr, fw->init.data, fw->init.datasz);
4757 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
4758 memcpy(dma->vaddr + WPI_FW_DATA_MAXSZ, fw->init.text, fw->init.textsz);
4759 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
4761 /* Tell adapter where to find initialization sections. */
4762 if ((error = wpi_nic_lock(sc)) != 0)
4764 wpi_prph_write(sc, WPI_BSM_DRAM_DATA_ADDR, dma->paddr);
4765 wpi_prph_write(sc, WPI_BSM_DRAM_DATA_SIZE, fw->init.datasz);
4766 wpi_prph_write(sc, WPI_BSM_DRAM_TEXT_ADDR,
4767 dma->paddr + WPI_FW_DATA_MAXSZ);
4768 wpi_prph_write(sc, WPI_BSM_DRAM_TEXT_SIZE, fw->init.textsz);
4771 /* Load firmware boot code. */
4772 error = wpi_load_bootcode(sc, fw->boot.text, fw->boot.textsz);
4774 device_printf(sc->sc_dev, "%s: could not load boot firmware\n",
4779 /* Now press "execute". */
4780 WPI_WRITE(sc, WPI_RESET, 0);
4782 /* Wait at most one second for first alive notification. */
4783 if ((error = mtx_sleep(sc, &sc->sc_mtx, PCATCH, "wpiinit", hz)) != 0) {
4784 device_printf(sc->sc_dev,
4785 "%s: timeout waiting for adapter to initialize, error %d\n",
4790 /* Copy runtime sections into pre-allocated DMA-safe memory. */
4791 memcpy(dma->vaddr, fw->main.data, fw->main.datasz);
4792 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
4793 memcpy(dma->vaddr + WPI_FW_DATA_MAXSZ, fw->main.text, fw->main.textsz);
4794 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
4796 /* Tell adapter where to find runtime sections. */
4797 if ((error = wpi_nic_lock(sc)) != 0)
4799 wpi_prph_write(sc, WPI_BSM_DRAM_DATA_ADDR, dma->paddr);
4800 wpi_prph_write(sc, WPI_BSM_DRAM_DATA_SIZE, fw->main.datasz);
4801 wpi_prph_write(sc, WPI_BSM_DRAM_TEXT_ADDR,
4802 dma->paddr + WPI_FW_DATA_MAXSZ);
4803 wpi_prph_write(sc, WPI_BSM_DRAM_TEXT_SIZE,
4804 WPI_FW_UPDATED | fw->main.textsz);
4811 wpi_read_firmware(struct wpi_softc *sc)
4813 const struct firmware *fp;
4814 struct wpi_fw_info *fw = &sc->fw;
4815 const struct wpi_firmware_hdr *hdr;
4818 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4820 DPRINTF(sc, WPI_DEBUG_FIRMWARE,
4821 "Attempting Loading Firmware from %s module\n", WPI_FW_NAME);
4824 fp = firmware_get(WPI_FW_NAME);
4828 device_printf(sc->sc_dev,
4829 "could not load firmware image '%s'\n", WPI_FW_NAME);
4835 if (fp->datasize < sizeof (struct wpi_firmware_hdr)) {
4836 device_printf(sc->sc_dev,
4837 "firmware file too short: %zu bytes\n", fp->datasize);
4842 fw->size = fp->datasize;
4843 fw->data = (const uint8_t *)fp->data;
4845 /* Extract firmware header information. */
4846 hdr = (const struct wpi_firmware_hdr *)fw->data;
4848 /* | RUNTIME FIRMWARE | INIT FIRMWARE | BOOT FW |
4849 |HDR|<--TEXT-->|<--DATA-->|<--TEXT-->|<--DATA-->|<--TEXT-->| */
4851 fw->main.textsz = le32toh(hdr->rtextsz);
4852 fw->main.datasz = le32toh(hdr->rdatasz);
4853 fw->init.textsz = le32toh(hdr->itextsz);
4854 fw->init.datasz = le32toh(hdr->idatasz);
4855 fw->boot.textsz = le32toh(hdr->btextsz);
4856 fw->boot.datasz = 0;
4858 /* Sanity-check firmware header. */
4859 if (fw->main.textsz > WPI_FW_TEXT_MAXSZ ||
4860 fw->main.datasz > WPI_FW_DATA_MAXSZ ||
4861 fw->init.textsz > WPI_FW_TEXT_MAXSZ ||
4862 fw->init.datasz > WPI_FW_DATA_MAXSZ ||
4863 fw->boot.textsz > WPI_FW_BOOT_TEXT_MAXSZ ||
4864 (fw->boot.textsz & 3) != 0) {
4865 device_printf(sc->sc_dev, "invalid firmware header\n");
4870 /* Check that all firmware sections fit. */
4871 if (fw->size < sizeof (*hdr) + fw->main.textsz + fw->main.datasz +
4872 fw->init.textsz + fw->init.datasz + fw->boot.textsz) {
4873 device_printf(sc->sc_dev,
4874 "firmware file too short: %zu bytes\n", fw->size);
4879 /* Get pointers to firmware sections. */
4880 fw->main.text = (const uint8_t *)(hdr + 1);
4881 fw->main.data = fw->main.text + fw->main.textsz;
4882 fw->init.text = fw->main.data + fw->main.datasz;
4883 fw->init.data = fw->init.text + fw->init.textsz;
4884 fw->boot.text = fw->init.data + fw->init.datasz;
4886 DPRINTF(sc, WPI_DEBUG_FIRMWARE,
4887 "Firmware Version: Major %d, Minor %d, Driver %d, \n"
4888 "runtime (text: %u, data: %u) init (text: %u, data %u) "
4889 "boot (text %u)\n", hdr->major, hdr->minor, le32toh(hdr->driver),
4890 fw->main.textsz, fw->main.datasz,
4891 fw->init.textsz, fw->init.datasz, fw->boot.textsz);
4893 DPRINTF(sc, WPI_DEBUG_FIRMWARE, "fw->main.text %p\n", fw->main.text);
4894 DPRINTF(sc, WPI_DEBUG_FIRMWARE, "fw->main.data %p\n", fw->main.data);
4895 DPRINTF(sc, WPI_DEBUG_FIRMWARE, "fw->init.text %p\n", fw->init.text);
4896 DPRINTF(sc, WPI_DEBUG_FIRMWARE, "fw->init.data %p\n", fw->init.data);
4897 DPRINTF(sc, WPI_DEBUG_FIRMWARE, "fw->boot.text %p\n", fw->boot.text);
4901 fail: wpi_unload_firmware(sc);
4906 * Free the referenced firmware image
4909 wpi_unload_firmware(struct wpi_softc *sc)
4911 if (sc->fw_fp != NULL) {
4912 firmware_put(sc->fw_fp, FIRMWARE_UNLOAD);
4918 wpi_clock_wait(struct wpi_softc *sc)
4922 /* Set "initialization complete" bit. */
4923 WPI_SETBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_INIT_DONE);
4925 /* Wait for clock stabilization. */
4926 for (ntries = 0; ntries < 2500; ntries++) {
4927 if (WPI_READ(sc, WPI_GP_CNTRL) & WPI_GP_CNTRL_MAC_CLOCK_READY)
4931 device_printf(sc->sc_dev,
4932 "%s: timeout waiting for clock stabilization\n", __func__);
4938 wpi_apm_init(struct wpi_softc *sc)
4943 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4945 /* Disable L0s exit timer (NMI bug workaround). */
4946 WPI_SETBITS(sc, WPI_GIO_CHICKEN, WPI_GIO_CHICKEN_DIS_L0S_TIMER);
4947 /* Don't wait for ICH L0s (ICH bug workaround). */
4948 WPI_SETBITS(sc, WPI_GIO_CHICKEN, WPI_GIO_CHICKEN_L1A_NO_L0S_RX);
4950 /* Set FH wait threshold to max (HW bug under stress workaround). */
4951 WPI_SETBITS(sc, WPI_DBG_HPET_MEM, 0xffff0000);
4953 /* Retrieve PCIe Active State Power Management (ASPM). */
4954 reg = pci_read_config(sc->sc_dev, sc->sc_cap_off + 0x10, 1);
4955 /* Workaround for HW instability in PCIe L0->L0s->L1 transition. */
4956 if (reg & 0x02) /* L1 Entry enabled. */
4957 WPI_SETBITS(sc, WPI_GIO, WPI_GIO_L0S_ENA);
4959 WPI_CLRBITS(sc, WPI_GIO, WPI_GIO_L0S_ENA);
4961 WPI_SETBITS(sc, WPI_ANA_PLL, WPI_ANA_PLL_INIT);
4963 /* Wait for clock stabilization before accessing prph. */
4964 if ((error = wpi_clock_wait(sc)) != 0)
4967 if ((error = wpi_nic_lock(sc)) != 0)
4970 wpi_prph_write(sc, WPI_APMG_CLK_DIS, 0x00000400);
4971 wpi_prph_clrbits(sc, WPI_APMG_PS, 0x00000200);
4973 /* Enable DMA and BSM (Bootstrap State Machine). */
4974 wpi_prph_write(sc, WPI_APMG_CLK_EN,
4975 WPI_APMG_CLK_CTRL_DMA_CLK_RQT | WPI_APMG_CLK_CTRL_BSM_CLK_RQT);
4977 /* Disable L1-Active. */
4978 wpi_prph_setbits(sc, WPI_APMG_PCI_STT, WPI_APMG_PCI_STT_L1A_DIS);
4985 wpi_apm_stop_master(struct wpi_softc *sc)
4989 /* Stop busmaster DMA activity. */
4990 WPI_SETBITS(sc, WPI_RESET, WPI_RESET_STOP_MASTER);
4992 if ((WPI_READ(sc, WPI_GP_CNTRL) & WPI_GP_CNTRL_PS_MASK) ==
4993 WPI_GP_CNTRL_MAC_PS)
4994 return; /* Already asleep. */
4996 for (ntries = 0; ntries < 100; ntries++) {
4997 if (WPI_READ(sc, WPI_RESET) & WPI_RESET_MASTER_DISABLED)
5001 device_printf(sc->sc_dev, "%s: timeout waiting for master\n",
5006 wpi_apm_stop(struct wpi_softc *sc)
5008 wpi_apm_stop_master(sc);
5010 /* Reset the entire device. */
5011 WPI_SETBITS(sc, WPI_RESET, WPI_RESET_SW);
5013 /* Clear "initialization complete" bit. */
5014 WPI_CLRBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_INIT_DONE);
5018 wpi_nic_config(struct wpi_softc *sc)
5022 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
5024 /* voodoo from the Linux "driver".. */
5025 rev = pci_read_config(sc->sc_dev, PCIR_REVID, 1);
5026 if ((rev & 0xc0) == 0x40)
5027 WPI_SETBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_ALM_MB);
5028 else if (!(rev & 0x80))
5029 WPI_SETBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_ALM_MM);
5031 if (sc->cap == 0x80)
5032 WPI_SETBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_SKU_MRC);
5034 if ((sc->rev & 0xf0) == 0xd0)
5035 WPI_SETBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_REV_D);
5037 WPI_CLRBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_REV_D);
5040 WPI_SETBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_TYPE_B);
5044 wpi_hw_init(struct wpi_softc *sc)
5046 int chnl, ntries, error;
5048 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
5050 /* Clear pending interrupts. */
5051 WPI_WRITE(sc, WPI_INT, 0xffffffff);
5053 if ((error = wpi_apm_init(sc)) != 0) {
5054 device_printf(sc->sc_dev,
5055 "%s: could not power ON adapter, error %d\n", __func__,
5060 /* Select VMAIN power source. */
5061 if ((error = wpi_nic_lock(sc)) != 0)
5063 wpi_prph_clrbits(sc, WPI_APMG_PS, WPI_APMG_PS_PWR_SRC_MASK);
5065 /* Spin until VMAIN gets selected. */
5066 for (ntries = 0; ntries < 5000; ntries++) {
5067 if (WPI_READ(sc, WPI_GPIO_IN) & WPI_GPIO_IN_VMAIN)
5071 if (ntries == 5000) {
5072 device_printf(sc->sc_dev, "timeout selecting power source\n");
5076 /* Perform adapter initialization. */
5079 /* Initialize RX ring. */
5080 if ((error = wpi_nic_lock(sc)) != 0)
5082 /* Set physical address of RX ring. */
5083 WPI_WRITE(sc, WPI_FH_RX_BASE, sc->rxq.desc_dma.paddr);
5084 /* Set physical address of RX read pointer. */
5085 WPI_WRITE(sc, WPI_FH_RX_RPTR_ADDR, sc->shared_dma.paddr +
5086 offsetof(struct wpi_shared, next));
5087 WPI_WRITE(sc, WPI_FH_RX_WPTR, 0);
5089 WPI_WRITE(sc, WPI_FH_RX_CONFIG,
5090 WPI_FH_RX_CONFIG_DMA_ENA |
5091 WPI_FH_RX_CONFIG_RDRBD_ENA |
5092 WPI_FH_RX_CONFIG_WRSTATUS_ENA |
5093 WPI_FH_RX_CONFIG_MAXFRAG |
5094 WPI_FH_RX_CONFIG_NRBD(WPI_RX_RING_COUNT_LOG) |
5095 WPI_FH_RX_CONFIG_IRQ_DST_HOST |
5096 WPI_FH_RX_CONFIG_IRQ_TIMEOUT(1));
5097 (void)WPI_READ(sc, WPI_FH_RSSR_TBL); /* barrier */
5099 WPI_WRITE(sc, WPI_FH_RX_WPTR, (WPI_RX_RING_COUNT - 1) & ~7);
5101 /* Initialize TX rings. */
5102 if ((error = wpi_nic_lock(sc)) != 0)
5104 wpi_prph_write(sc, WPI_ALM_SCHED_MODE, 2); /* bypass mode */
5105 wpi_prph_write(sc, WPI_ALM_SCHED_ARASTAT, 1); /* enable RA0 */
5106 /* Enable all 6 TX rings. */
5107 wpi_prph_write(sc, WPI_ALM_SCHED_TXFACT, 0x3f);
5108 wpi_prph_write(sc, WPI_ALM_SCHED_SBYPASS_MODE1, 0x10000);
5109 wpi_prph_write(sc, WPI_ALM_SCHED_SBYPASS_MODE2, 0x30002);
5110 wpi_prph_write(sc, WPI_ALM_SCHED_TXF4MF, 4);
5111 wpi_prph_write(sc, WPI_ALM_SCHED_TXF5MF, 5);
5112 /* Set physical address of TX rings. */
5113 WPI_WRITE(sc, WPI_FH_TX_BASE, sc->shared_dma.paddr);
5114 WPI_WRITE(sc, WPI_FH_MSG_CONFIG, 0xffff05a5);
5116 /* Enable all DMA channels. */
5117 for (chnl = 0; chnl < WPI_NDMACHNLS; chnl++) {
5118 WPI_WRITE(sc, WPI_FH_CBBC_CTRL(chnl), 0);
5119 WPI_WRITE(sc, WPI_FH_CBBC_BASE(chnl), 0);
5120 WPI_WRITE(sc, WPI_FH_TX_CONFIG(chnl), 0x80200008);
5123 (void)WPI_READ(sc, WPI_FH_TX_BASE); /* barrier */
5125 /* Clear "radio off" and "commands blocked" bits. */
5126 WPI_WRITE(sc, WPI_UCODE_GP1_CLR, WPI_UCODE_GP1_RFKILL);
5127 WPI_WRITE(sc, WPI_UCODE_GP1_CLR, WPI_UCODE_GP1_CMD_BLOCKED);
5129 /* Clear pending interrupts. */
5130 WPI_WRITE(sc, WPI_INT, 0xffffffff);
5131 /* Enable interrupts. */
5132 WPI_WRITE(sc, WPI_INT_MASK, WPI_INT_MASK_DEF);
5134 /* _Really_ make sure "radio off" bit is cleared! */
5135 WPI_WRITE(sc, WPI_UCODE_GP1_CLR, WPI_UCODE_GP1_RFKILL);
5136 WPI_WRITE(sc, WPI_UCODE_GP1_CLR, WPI_UCODE_GP1_RFKILL);
5138 if ((error = wpi_load_firmware(sc)) != 0) {
5139 device_printf(sc->sc_dev,
5140 "%s: could not load firmware, error %d\n", __func__,
5144 /* Wait at most one second for firmware alive notification. */
5145 if ((error = mtx_sleep(sc, &sc->sc_mtx, PCATCH, "wpiinit", hz)) != 0) {
5146 device_printf(sc->sc_dev,
5147 "%s: timeout waiting for adapter to initialize, error %d\n",
5152 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
5154 /* Do post-firmware initialization. */
5155 return wpi_post_alive(sc);
5159 wpi_hw_stop(struct wpi_softc *sc)
5161 int chnl, qid, ntries;
5163 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
5165 if (WPI_READ(sc, WPI_UCODE_GP1) & WPI_UCODE_GP1_MAC_SLEEP)
5168 WPI_WRITE(sc, WPI_RESET, WPI_RESET_NEVO);
5170 /* Disable interrupts. */
5171 WPI_WRITE(sc, WPI_INT_MASK, 0);
5172 WPI_WRITE(sc, WPI_INT, 0xffffffff);
5173 WPI_WRITE(sc, WPI_FH_INT, 0xffffffff);
5175 /* Make sure we no longer hold the NIC lock. */
5178 if (wpi_nic_lock(sc) == 0) {
5179 /* Stop TX scheduler. */
5180 wpi_prph_write(sc, WPI_ALM_SCHED_MODE, 0);
5181 wpi_prph_write(sc, WPI_ALM_SCHED_TXFACT, 0);
5183 /* Stop all DMA channels. */
5184 for (chnl = 0; chnl < WPI_NDMACHNLS; chnl++) {
5185 WPI_WRITE(sc, WPI_FH_TX_CONFIG(chnl), 0);
5186 for (ntries = 0; ntries < 200; ntries++) {
5187 if (WPI_READ(sc, WPI_FH_TX_STATUS) &
5188 WPI_FH_TX_STATUS_IDLE(chnl))
5197 wpi_reset_rx_ring(sc);
5199 /* Reset all TX rings. */
5200 for (qid = 0; qid < WPI_NTXQUEUES; qid++)
5201 wpi_reset_tx_ring(sc, &sc->txq[qid]);
5203 if (wpi_nic_lock(sc) == 0) {
5204 wpi_prph_write(sc, WPI_APMG_CLK_DIS,
5205 WPI_APMG_CLK_CTRL_DMA_CLK_RQT);
5209 /* Power OFF adapter. */
5214 wpi_radio_on(void *arg0, int pending)
5216 struct wpi_softc *sc = arg0;
5217 struct ifnet *ifp = sc->sc_ifp;
5218 struct ieee80211com *ic = ifp->if_l2com;
5219 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
5221 device_printf(sc->sc_dev, "RF switch: radio enabled\n");
5225 ieee80211_init(vap);
5228 if (WPI_READ(sc, WPI_GP_CNTRL) & WPI_GP_CNTRL_RFKILL) {
5230 callout_stop(&sc->watchdog_rfkill);
5236 wpi_radio_off(void *arg0, int pending)
5238 struct wpi_softc *sc = arg0;
5239 struct ifnet *ifp = sc->sc_ifp;
5240 struct ieee80211com *ic = ifp->if_l2com;
5241 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
5243 device_printf(sc->sc_dev, "RF switch: radio disabled\n");
5247 ieee80211_stop(vap);
5250 callout_reset(&sc->watchdog_rfkill, hz, wpi_watchdog_rfkill, sc);
5257 struct wpi_softc *sc = arg;
5258 struct ifnet *ifp = sc->sc_ifp;
5259 struct ieee80211com *ic = ifp->if_l2com;
5264 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
5266 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0)
5269 /* Check that the radio is not disabled by hardware switch. */
5270 if (!(WPI_READ(sc, WPI_GP_CNTRL) & WPI_GP_CNTRL_RFKILL)) {
5271 device_printf(sc->sc_dev,
5272 "RF switch: radio disabled (%s)\n", __func__);
5273 callout_reset(&sc->watchdog_rfkill, hz, wpi_watchdog_rfkill,
5278 /* Read firmware images from the filesystem. */
5279 if ((error = wpi_read_firmware(sc)) != 0) {
5280 device_printf(sc->sc_dev,
5281 "%s: could not read firmware, error %d\n", __func__,
5286 /* Initialize hardware and upload firmware. */
5287 error = wpi_hw_init(sc);
5288 wpi_unload_firmware(sc);
5290 device_printf(sc->sc_dev,
5291 "%s: could not initialize hardware, error %d\n", __func__,
5296 /* Configure adapter now that it is ready. */
5298 if ((error = wpi_config(sc)) != 0) {
5299 device_printf(sc->sc_dev,
5300 "%s: could not configure device, error %d\n", __func__,
5305 IF_LOCK(&ifp->if_snd);
5306 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
5307 ifp->if_drv_flags |= IFF_DRV_RUNNING;
5308 IF_UNLOCK(&ifp->if_snd);
5310 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
5314 ieee80211_start_all(ic);
5318 fail: wpi_stop_locked(sc);
5319 end: DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
5324 wpi_stop_locked(struct wpi_softc *sc)
5326 struct ifnet *ifp = sc->sc_ifp;
5328 WPI_LOCK_ASSERT(sc);
5334 WPI_TXQ_STATE_LOCK(sc);
5335 callout_stop(&sc->tx_timeout);
5336 WPI_TXQ_STATE_UNLOCK(sc);
5339 callout_stop(&sc->scan_timeout);
5340 callout_stop(&sc->calib_to);
5341 WPI_RXON_UNLOCK(sc);
5343 IF_LOCK(&ifp->if_snd);
5344 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
5345 IF_UNLOCK(&ifp->if_snd);
5347 /* Power OFF hardware. */
5352 wpi_stop(struct wpi_softc *sc)
5355 wpi_stop_locked(sc);
5360 * Callback from net80211 to start a scan.
5363 wpi_scan_start(struct ieee80211com *ic)
5365 struct wpi_softc *sc = ic->ic_ifp->if_softc;
5367 wpi_set_led(sc, WPI_LED_LINK, 20, 2);
5371 * Callback from net80211 to terminate a scan.
5374 wpi_scan_end(struct ieee80211com *ic)
5376 struct ifnet *ifp = ic->ic_ifp;
5377 struct wpi_softc *sc = ifp->if_softc;
5378 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
5380 if (vap->iv_state == IEEE80211_S_RUN)
5381 wpi_set_led(sc, WPI_LED_LINK, 0, 1);
5385 * Called by the net80211 framework to indicate to the driver
5386 * that the channel should be changed
5389 wpi_set_channel(struct ieee80211com *ic)
5391 const struct ieee80211_channel *c = ic->ic_curchan;
5392 struct ifnet *ifp = ic->ic_ifp;
5393 struct wpi_softc *sc = ifp->if_softc;
5396 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
5399 sc->sc_rxtap.wr_chan_freq = htole16(c->ic_freq);
5400 sc->sc_rxtap.wr_chan_flags = htole16(c->ic_flags);
5403 sc->sc_txtap.wt_chan_freq = htole16(c->ic_freq);
5404 sc->sc_txtap.wt_chan_flags = htole16(c->ic_flags);
5408 * Only need to set the channel in Monitor mode. AP scanning and auth
5409 * are already taken care of by their respective firmware commands.
5411 if (ic->ic_opmode == IEEE80211_M_MONITOR) {
5413 sc->rxon.chan = ieee80211_chan2ieee(ic, c);
5414 if (IEEE80211_IS_CHAN_2GHZ(c)) {
5415 sc->rxon.flags |= htole32(WPI_RXON_AUTO |
5418 sc->rxon.flags &= ~htole32(WPI_RXON_AUTO |
5421 if ((error = wpi_send_rxon(sc, 0, 1)) != 0)
5422 device_printf(sc->sc_dev,
5423 "%s: error %d setting channel\n", __func__,
5425 WPI_RXON_UNLOCK(sc);
5430 * Called by net80211 to indicate that we need to scan the current
5431 * channel. The channel is previously be set via the wpi_set_channel
5435 wpi_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)
5437 struct ieee80211vap *vap = ss->ss_vap;
5438 struct ieee80211com *ic = vap->iv_ic;
5439 struct wpi_softc *sc = ic->ic_ifp->if_softc;
5443 error = wpi_scan(sc, ic->ic_curchan);
5444 WPI_RXON_UNLOCK(sc);
5446 ieee80211_cancel_scan(vap);
5450 * Called by the net80211 framework to indicate
5451 * the minimum dwell time has been met, terminate the scan.
5452 * We don't actually terminate the scan as the firmware will notify
5453 * us when it's finished and we have no way to interrupt it.
5456 wpi_scan_mindwell(struct ieee80211_scan_state *ss)
5458 /* NB: don't try to abort scan; wait for firmware to finish */
5462 wpi_hw_reset(void *arg, int pending)
5464 struct wpi_softc *sc = arg;
5465 struct ifnet *ifp = sc->sc_ifp;
5466 struct ieee80211com *ic = ifp->if_l2com;
5467 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
5469 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
5471 if (vap != NULL && (ic->ic_flags & IEEE80211_F_SCAN))
5472 ieee80211_cancel_scan(vap);
5476 ieee80211_stop(vap);
5479 ieee80211_init(vap);