2 * Copyright (c) 2007-2009
3 * Damien Bergamini <damien.bergamini@free.fr>
5 * Benjamin Close <benjsc@FreeBSD.org>
6 * Copyright (c) 2008 Sam Leffler, Errno Consulting
8 * Permission to use, copy, modify, and distribute this software for any
9 * purpose with or without fee is hereby granted, provided that the above
10 * copyright notice and this permission notice appear in all copies.
12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
22 * Driver for Intel WiFi Link 4965 and 1000/5000/6000 Series 802.11 network
28 #include <sys/param.h>
29 #include <sys/sockio.h>
30 #include <sys/sysctl.h>
32 #include <sys/kernel.h>
33 #include <sys/socket.h>
34 #include <sys/systm.h>
35 #include <sys/malloc.h>
38 #include <sys/endian.h>
39 #include <sys/firmware.h>
40 #include <sys/limits.h>
41 #include <sys/module.h>
42 #include <sys/queue.h>
43 #include <sys/taskqueue.h>
44 #include <sys/libkern.h>
47 #include <sys/resource.h>
48 #include <machine/clock.h>
50 #include <bus/pci/pcireg.h>
51 #include <bus/pci/pcivar.h>
55 #include <net/if_arp.h>
56 #include <net/ifq_var.h>
57 #include <net/ethernet.h>
58 #include <net/if_dl.h>
59 #include <net/if_media.h>
60 #include <net/if_types.h>
62 #include <netinet/in.h>
63 #include <netinet/in_systm.h>
64 #include <netinet/in_var.h>
65 #include <netinet/if_ether.h>
66 #include <netinet/ip.h>
68 #include <netproto/802_11/ieee80211_var.h>
69 #include <netproto/802_11/ieee80211_radiotap.h>
70 #include <netproto/802_11/ieee80211_regdomain.h>
71 #include <netproto/802_11/ieee80211_ratectl.h>
73 #include "if_iwnreg.h"
74 #include "if_iwnvar.h"
76 static int iwn_probe(device_t);
77 static int iwn_attach(device_t);
78 static const struct iwn_hal *iwn_hal_attach(struct iwn_softc *);
79 static void iwn_radiotap_attach(struct iwn_softc *);
80 static struct ieee80211vap *iwn_vap_create(struct ieee80211com *,
81 const char name[IFNAMSIZ], int unit, int opmode,
82 int flags, const uint8_t bssid[IEEE80211_ADDR_LEN],
83 const uint8_t mac[IEEE80211_ADDR_LEN]);
84 static void iwn_vap_delete(struct ieee80211vap *);
85 static int iwn_cleanup(device_t);
86 static int iwn_detach(device_t);
87 static int iwn_nic_lock(struct iwn_softc *);
88 static int iwn_eeprom_lock(struct iwn_softc *);
89 static int iwn_init_otprom(struct iwn_softc *);
90 static int iwn_read_prom_data(struct iwn_softc *, uint32_t, void *, int);
91 static void iwn_dma_map_addr(void *, bus_dma_segment_t *, int, int);
92 static int iwn_dma_contig_alloc(struct iwn_softc *, struct iwn_dma_info *,
93 void **, bus_size_t, bus_size_t, int);
94 static void iwn_dma_contig_free(struct iwn_dma_info *);
95 static int iwn_alloc_sched(struct iwn_softc *);
96 static void iwn_free_sched(struct iwn_softc *);
97 static int iwn_alloc_kw(struct iwn_softc *);
98 static void iwn_free_kw(struct iwn_softc *);
99 static int iwn_alloc_ict(struct iwn_softc *);
100 static void iwn_free_ict(struct iwn_softc *);
101 static int iwn_alloc_fwmem(struct iwn_softc *);
102 static void iwn_free_fwmem(struct iwn_softc *);
103 static int iwn_alloc_rx_ring(struct iwn_softc *, struct iwn_rx_ring *);
104 static void iwn_reset_rx_ring(struct iwn_softc *, struct iwn_rx_ring *);
105 static void iwn_free_rx_ring(struct iwn_softc *, struct iwn_rx_ring *);
106 static int iwn_alloc_tx_ring(struct iwn_softc *, struct iwn_tx_ring *,
108 static void iwn_reset_tx_ring(struct iwn_softc *, struct iwn_tx_ring *);
109 static void iwn_free_tx_ring(struct iwn_softc *, struct iwn_tx_ring *);
110 static void iwn5000_ict_reset(struct iwn_softc *);
111 static int iwn_read_eeprom(struct iwn_softc *,
112 uint8_t macaddr[IEEE80211_ADDR_LEN]);
113 static void iwn4965_read_eeprom(struct iwn_softc *);
114 static void iwn4965_print_power_group(struct iwn_softc *, int);
115 static void iwn5000_read_eeprom(struct iwn_softc *);
116 static uint32_t iwn_eeprom_channel_flags(struct iwn_eeprom_chan *);
117 static void iwn_read_eeprom_band(struct iwn_softc *, int);
119 static void iwn_read_eeprom_ht40(struct iwn_softc *, int);
121 static void iwn_read_eeprom_channels(struct iwn_softc *, int,
123 static void iwn_read_eeprom_enhinfo(struct iwn_softc *);
124 static struct ieee80211_node *iwn_node_alloc(struct ieee80211vap *,
125 const uint8_t mac[IEEE80211_ADDR_LEN]);
126 static void iwn_newassoc(struct ieee80211_node *, int);
127 static int iwn_media_change(struct ifnet *);
128 static int iwn_newstate(struct ieee80211vap *, enum ieee80211_state, int);
129 static void iwn_rx_phy(struct iwn_softc *, struct iwn_rx_desc *,
130 struct iwn_rx_data *);
131 static void iwn_timer_timeout(void *);
132 static void iwn_calib_reset(struct iwn_softc *);
133 static void iwn_rx_done(struct iwn_softc *, struct iwn_rx_desc *,
134 struct iwn_rx_data *);
136 static void iwn_rx_compressed_ba(struct iwn_softc *, struct iwn_rx_desc *,
137 struct iwn_rx_data *);
139 static void iwn5000_rx_calib_results(struct iwn_softc *,
140 struct iwn_rx_desc *, struct iwn_rx_data *);
141 static void iwn_rx_statistics(struct iwn_softc *, struct iwn_rx_desc *,
142 struct iwn_rx_data *);
143 static void iwn4965_tx_done(struct iwn_softc *, struct iwn_rx_desc *,
144 struct iwn_rx_data *);
145 static void iwn5000_tx_done(struct iwn_softc *, struct iwn_rx_desc *,
146 struct iwn_rx_data *);
147 static void iwn_tx_done(struct iwn_softc *, struct iwn_rx_desc *, int,
149 static void iwn_cmd_done(struct iwn_softc *, struct iwn_rx_desc *);
150 static void iwn_notif_intr(struct iwn_softc *);
151 static void iwn_wakeup_intr(struct iwn_softc *);
152 static void iwn_rftoggle_intr(struct iwn_softc *);
153 static void iwn_fatal_intr(struct iwn_softc *);
154 static void iwn_intr(void *);
155 static void iwn4965_update_sched(struct iwn_softc *, int, int, uint8_t,
157 static void iwn5000_update_sched(struct iwn_softc *, int, int, uint8_t,
160 static void iwn5000_reset_sched(struct iwn_softc *, int, int);
162 static uint8_t iwn_plcp_signal(int);
163 static int iwn_tx_data(struct iwn_softc *, struct mbuf *,
164 struct ieee80211_node *, struct iwn_tx_ring *);
165 static int iwn_raw_xmit(struct ieee80211_node *, struct mbuf *,
166 const struct ieee80211_bpf_params *);
167 static void iwn_start(struct ifnet *);
168 static void iwn_start_locked(struct ifnet *);
169 static void iwn_watchdog(struct iwn_softc *sc);
170 static int iwn_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
171 static int iwn_cmd(struct iwn_softc *, int, const void *, int, int);
172 static int iwn4965_add_node(struct iwn_softc *, struct iwn_node_info *,
174 static int iwn5000_add_node(struct iwn_softc *, struct iwn_node_info *,
176 static int iwn_set_link_quality(struct iwn_softc *, uint8_t, int);
177 static int iwn_add_broadcast_node(struct iwn_softc *, int);
178 static int iwn_wme_update(struct ieee80211com *);
179 static void iwn_update_mcast(struct ifnet *);
180 static void iwn_set_led(struct iwn_softc *, uint8_t, uint8_t, uint8_t);
181 static int iwn_set_critical_temp(struct iwn_softc *);
182 static int iwn_set_timing(struct iwn_softc *, struct ieee80211_node *);
183 static void iwn4965_power_calibration(struct iwn_softc *, int);
184 static int iwn4965_set_txpower(struct iwn_softc *,
185 struct ieee80211_channel *, int);
186 static int iwn5000_set_txpower(struct iwn_softc *,
187 struct ieee80211_channel *, int);
188 static int iwn4965_get_rssi(struct iwn_softc *, struct iwn_rx_stat *);
189 static int iwn5000_get_rssi(struct iwn_softc *, struct iwn_rx_stat *);
190 static int iwn_get_noise(const struct iwn_rx_general_stats *);
191 static int iwn4965_get_temperature(struct iwn_softc *);
192 static int iwn5000_get_temperature(struct iwn_softc *);
193 static int iwn_init_sensitivity(struct iwn_softc *);
194 static void iwn_collect_noise(struct iwn_softc *,
195 const struct iwn_rx_general_stats *);
196 static int iwn4965_init_gains(struct iwn_softc *);
197 static int iwn5000_init_gains(struct iwn_softc *);
198 static int iwn4965_set_gains(struct iwn_softc *);
199 static int iwn5000_set_gains(struct iwn_softc *);
200 static void iwn_tune_sensitivity(struct iwn_softc *,
201 const struct iwn_rx_stats *);
202 static int iwn_send_sensitivity(struct iwn_softc *);
203 static int iwn_set_pslevel(struct iwn_softc *, int, int, int);
204 static int iwn_config(struct iwn_softc *);
205 static int iwn_scan(struct iwn_softc *);
206 static int iwn_auth(struct iwn_softc *, struct ieee80211vap *vap);
207 static int iwn_run(struct iwn_softc *, struct ieee80211vap *vap);
209 static int iwn_ampdu_rx_start(struct ieee80211com *,
210 struct ieee80211_node *, uint8_t);
211 static void iwn_ampdu_rx_stop(struct ieee80211com *,
212 struct ieee80211_node *, uint8_t);
213 static int iwn_ampdu_tx_start(struct ieee80211com *,
214 struct ieee80211_node *, uint8_t);
215 static void iwn_ampdu_tx_stop(struct ieee80211com *,
216 struct ieee80211_node *, uint8_t);
217 static void iwn4965_ampdu_tx_start(struct iwn_softc *,
218 struct ieee80211_node *, uint8_t, uint16_t);
219 static void iwn4965_ampdu_tx_stop(struct iwn_softc *, uint8_t, uint16_t);
220 static void iwn5000_ampdu_tx_start(struct iwn_softc *,
221 struct ieee80211_node *, uint8_t, uint16_t);
222 static void iwn5000_ampdu_tx_stop(struct iwn_softc *, uint8_t, uint16_t);
224 static int iwn5000_query_calibration(struct iwn_softc *);
225 static int iwn5000_send_calibration(struct iwn_softc *);
226 static int iwn5000_send_wimax_coex(struct iwn_softc *);
227 static int iwn4965_post_alive(struct iwn_softc *);
228 static int iwn5000_post_alive(struct iwn_softc *);
229 static int iwn4965_load_bootcode(struct iwn_softc *, const uint8_t *,
231 static int iwn4965_load_firmware(struct iwn_softc *);
232 static int iwn5000_load_firmware_section(struct iwn_softc *, uint32_t,
233 const uint8_t *, int);
234 static int iwn5000_load_firmware(struct iwn_softc *);
235 static int iwn_read_firmware(struct iwn_softc *);
236 static int iwn_clock_wait(struct iwn_softc *);
237 static int iwn_apm_init(struct iwn_softc *);
238 static void iwn_apm_stop_master(struct iwn_softc *);
239 static void iwn_apm_stop(struct iwn_softc *);
240 static int iwn4965_nic_config(struct iwn_softc *);
241 static int iwn5000_nic_config(struct iwn_softc *);
242 static int iwn_hw_prepare(struct iwn_softc *);
243 static int iwn_hw_init(struct iwn_softc *);
244 static void iwn_hw_stop(struct iwn_softc *);
245 static void iwn_init_locked(struct iwn_softc *);
246 static void iwn_init(void *);
247 static void iwn_stop_locked(struct iwn_softc *);
248 static void iwn_stop(struct iwn_softc *);
249 static void iwn_scan_start(struct ieee80211com *);
250 static void iwn_scan_end(struct ieee80211com *);
251 static void iwn_set_channel(struct ieee80211com *);
252 static void iwn_scan_curchan(struct ieee80211_scan_state *, unsigned long);
253 static void iwn_scan_mindwell(struct ieee80211_scan_state *);
254 static struct iwn_eeprom_chan *iwn_find_eeprom_channel(struct iwn_softc *,
255 struct ieee80211_channel *);
256 static int iwn_setregdomain(struct ieee80211com *,
257 struct ieee80211_regdomain *, int,
258 struct ieee80211_channel []);
259 static void iwn_hw_reset(void *, int);
260 static void iwn_radio_on(void *, int);
261 static void iwn_radio_off(void *, int);
262 static void iwn_sysctlattach(struct iwn_softc *);
263 static int iwn_shutdown(device_t);
264 static int iwn_suspend(device_t);
265 static int iwn_resume(device_t);
270 IWN_DEBUG_XMIT = 0x00000001, /* basic xmit operation */
271 IWN_DEBUG_RECV = 0x00000002, /* basic recv operation */
272 IWN_DEBUG_STATE = 0x00000004, /* 802.11 state transitions */
273 IWN_DEBUG_TXPOW = 0x00000008, /* tx power processing */
274 IWN_DEBUG_RESET = 0x00000010, /* reset processing */
275 IWN_DEBUG_OPS = 0x00000020, /* iwn_ops processing */
276 IWN_DEBUG_BEACON = 0x00000040, /* beacon handling */
277 IWN_DEBUG_WATCHDOG = 0x00000080, /* watchdog timeout */
278 IWN_DEBUG_INTR = 0x00000100, /* ISR */
279 IWN_DEBUG_CALIBRATE = 0x00000200, /* periodic calibration */
280 IWN_DEBUG_NODE = 0x00000400, /* node management */
281 IWN_DEBUG_LED = 0x00000800, /* led management */
282 IWN_DEBUG_CMD = 0x00001000, /* cmd submission */
283 IWN_DEBUG_FATAL = 0x80000000, /* fatal errors */
284 IWN_DEBUG_ANY = 0xffffffff
287 #define DPRINTF(sc, m, fmt, ...) do { \
288 if (sc->sc_debug & (m)) \
289 kprintf(fmt, __VA_ARGS__); \
292 static const char *iwn_intr_str(uint8_t);
294 #define DPRINTF(sc, m, fmt, ...) do { (void) sc; } while (0)
303 static const struct iwn_ident iwn_ident_table [] = {
304 { 0x8086, 0x4229, "Intel(R) PRO/Wireless 4965BGN" },
305 { 0x8086, 0x422D, "Intel(R) PRO/Wireless 4965BGN" },
306 { 0x8086, 0x4230, "Intel(R) PRO/Wireless 4965BGN" },
307 { 0x8086, 0x4233, "Intel(R) PRO/Wireless 4965BGN" },
308 { 0x8086, 0x4232, "Intel(R) PRO/Wireless 5100" },
309 { 0x8086, 0x4237, "Intel(R) PRO/Wireless 5100" },
310 { 0x8086, 0x423C, "Intel(R) PRO/Wireless 5150" },
311 { 0x8086, 0x423D, "Intel(R) PRO/Wireless 5150" },
312 { 0x8086, 0x4235, "Intel(R) PRO/Wireless 5300" },
313 { 0x8086, 0x4236, "Intel(R) PRO/Wireless 5300" },
314 { 0x8086, 0x423A, "Intel(R) PRO/Wireless 5350" },
315 { 0x8086, 0x423B, "Intel(R) PRO/Wireless 5350" },
316 { 0x8086, 0x0083, "Intel(R) PRO/Wireless 1000" },
317 { 0x8086, 0x0084, "Intel(R) PRO/Wireless 1000" },
318 { 0x8086, 0x008D, "Intel(R) PRO/Wireless 6000" },
319 { 0x8086, 0x008E, "Intel(R) PRO/Wireless 6000" },
320 { 0x8086, 0x4238, "Intel(R) PRO/Wireless 6000" },
321 { 0x8086, 0x4239, "Intel(R) PRO/Wireless 6000" },
322 { 0x8086, 0x422B, "Intel(R) PRO/Wireless 6000" },
323 { 0x8086, 0x422C, "Intel(R) PRO/Wireless 6000" },
324 { 0x8086, 0x0086, "Intel(R) PRO/Wireless 6050" },
325 { 0x8086, 0x0087, "Intel(R) PRO/Wireless 6050" },
329 static const struct iwn_hal iwn4965_hal = {
330 iwn4965_load_firmware,
334 iwn4965_update_sched,
335 iwn4965_get_temperature,
343 iwn4965_ampdu_tx_start,
344 iwn4965_ampdu_tx_stop,
348 IWN4965_ID_BROADCAST,
351 IWN4965_FW_TEXT_MAXSZ,
352 IWN4965_FW_DATA_MAXSZ,
357 static const struct iwn_hal iwn5000_hal = {
358 iwn5000_load_firmware,
362 iwn5000_update_sched,
363 iwn5000_get_temperature,
371 iwn5000_ampdu_tx_start,
372 iwn5000_ampdu_tx_stop,
376 IWN5000_ID_BROADCAST,
379 IWN5000_FW_TEXT_MAXSZ,
380 IWN5000_FW_DATA_MAXSZ,
386 iwn_probe(device_t dev)
388 const struct iwn_ident *ident;
390 for (ident = iwn_ident_table; ident->name != NULL; ident++) {
391 if (pci_get_vendor(dev) == ident->vendor &&
392 pci_get_device(dev) == ident->device) {
393 device_set_desc(dev, ident->name);
401 iwn_attach(device_t dev)
403 struct iwn_softc *sc = (struct iwn_softc *)device_get_softc(dev);
404 struct ieee80211com *ic;
406 const struct iwn_hal *hal;
408 int i, error, result;
409 uint8_t macaddr[IEEE80211_ADDR_LEN];
414 if (bus_dma_tag_create(sc->sc_dmat,
416 BUS_SPACE_MAXADDR_32BIT,
424 device_printf(dev, "cannot allocate DMA tag\n");
431 /* prepare sysctl tree for use in sub modules */
432 sysctl_ctx_init(&sc->sc_sysctl_ctx);
433 sc->sc_sysctl_tree = SYSCTL_ADD_NODE(&sc->sc_sysctl_ctx,
434 SYSCTL_STATIC_CHILDREN(_hw),
436 device_get_nameunit(sc->sc_dev),
440 * Get the offset of the PCI Express Capability Structure in PCI
441 * Configuration Space.
443 error = pci_find_extcap(dev, PCIY_EXPRESS, &sc->sc_cap_off);
445 device_printf(dev, "PCIe capability structure not found!\n");
449 /* Clear device-specific "PCI retry timeout" register (41h). */
450 pci_write_config(dev, 0x41, 0, 1);
452 /* Hardware bug workaround. */
453 tmp = pci_read_config(dev, PCIR_COMMAND, 1);
454 if (tmp & PCIM_CMD_INTxDIS) {
455 DPRINTF(sc, IWN_DEBUG_RESET, "%s: PCIe INTx Disable set\n",
457 tmp &= ~PCIM_CMD_INTxDIS;
458 pci_write_config(dev, PCIR_COMMAND, tmp, 1);
461 /* Enable bus-mastering. */
462 pci_enable_busmaster(dev);
464 sc->mem_rid = PCIR_BAR(0);
465 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid,
467 if (sc->mem == NULL ) {
468 device_printf(dev, "could not allocate memory resources\n");
473 sc->sc_st = rman_get_bustag(sc->mem);
474 sc->sc_sh = rman_get_bushandle(sc->mem);
476 if ((result = pci_msi_count(dev)) == 1 &&
477 pci_alloc_msi(dev, &result) == 0)
479 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
480 RF_ACTIVE | RF_SHAREABLE);
481 if (sc->irq == NULL) {
482 device_printf(dev, "could not allocate interrupt resource\n");
488 callout_init(&sc->sc_timer_to);
489 TASK_INIT(&sc->sc_reinit_task, 0, iwn_hw_reset, sc );
490 TASK_INIT(&sc->sc_radioon_task, 0, iwn_radio_on, sc );
491 TASK_INIT(&sc->sc_radiooff_task, 0, iwn_radio_off, sc );
493 /* Attach Hardware Abstraction Layer. */
494 hal = iwn_hal_attach(sc);
496 error = ENXIO; /* XXX: Wrong error code? */
500 error = iwn_hw_prepare(sc);
502 device_printf(dev, "hardware not ready, error %d\n", error);
506 /* Allocate DMA memory for firmware transfers. */
507 error = iwn_alloc_fwmem(sc);
510 "could not allocate memory for firmware, error %d\n",
515 /* Allocate "Keep Warm" page. */
516 error = iwn_alloc_kw(sc);
519 "could not allocate \"Keep Warm\" page, error %d\n", error);
523 /* Allocate ICT table for 5000 Series. */
524 if (sc->hw_type != IWN_HW_REV_TYPE_4965 &&
525 (error = iwn_alloc_ict(sc)) != 0) {
527 "%s: could not allocate ICT table, error %d\n",
532 /* Allocate TX scheduler "rings". */
533 error = iwn_alloc_sched(sc);
536 "could not allocate TX scheduler rings, error %d\n",
541 /* Allocate TX rings (16 on 4965AGN, 20 on 5000). */
542 for (i = 0; i < hal->ntxqs; i++) {
543 error = iwn_alloc_tx_ring(sc, &sc->txq[i], i);
546 "could not allocate Tx ring %d, error %d\n",
552 /* Allocate RX ring. */
553 error = iwn_alloc_rx_ring(sc, &sc->rxq);
556 "could not allocate Rx ring, error %d\n", error);
560 /* Clear pending interrupts. */
561 IWN_WRITE(sc, IWN_INT, 0xffffffff);
563 /* Count the number of available chains. */
565 ((sc->txchainmask >> 2) & 1) +
566 ((sc->txchainmask >> 1) & 1) +
567 ((sc->txchainmask >> 0) & 1);
569 ((sc->rxchainmask >> 2) & 1) +
570 ((sc->rxchainmask >> 1) & 1) +
571 ((sc->rxchainmask >> 0) & 1);
573 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
575 device_printf(dev, "can not allocate ifnet structure\n");
581 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
582 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
584 /* Set device capabilities. */
586 IEEE80211_C_STA /* station mode supported */
587 | IEEE80211_C_MONITOR /* monitor mode supported */
588 | IEEE80211_C_TXPMGT /* tx power management */
589 | IEEE80211_C_SHSLOT /* short slot time supported */
591 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
592 | IEEE80211_C_BGSCAN /* background scanning */
594 | IEEE80211_C_IBSS /* ibss/adhoc mode */
596 | IEEE80211_C_WME /* WME */
599 /* XXX disable until HT channel setup works */
601 IEEE80211_HTCAP_SMPS_ENA /* SM PS mode enabled */
602 | IEEE80211_HTCAP_CHWIDTH40 /* 40MHz channel width */
603 | IEEE80211_HTCAP_SHORTGI20 /* short GI in 20MHz */
604 | IEEE80211_HTCAP_SHORTGI40 /* short GI in 40MHz */
605 | IEEE80211_HTCAP_RXSTBC_2STREAM/* 1-2 spatial streams */
606 | IEEE80211_HTCAP_MAXAMSDU_3839 /* max A-MSDU length */
607 /* s/w capabilities */
608 | IEEE80211_HTC_HT /* HT operation */
609 | IEEE80211_HTC_AMPDU /* tx A-MPDU */
610 | IEEE80211_HTC_AMSDU /* tx A-MSDU */
613 /* Set HT capabilities. */
615 #if IWN_RBUF_SIZE == 8192
616 IEEE80211_HTCAP_AMSDU7935 |
618 IEEE80211_HTCAP_CBW20_40 |
619 IEEE80211_HTCAP_SGI20 |
620 IEEE80211_HTCAP_SGI40;
621 if (sc->hw_type != IWN_HW_REV_TYPE_4965)
622 ic->ic_htcaps |= IEEE80211_HTCAP_GF;
623 if (sc->hw_type == IWN_HW_REV_TYPE_6050)
624 ic->ic_htcaps |= IEEE80211_HTCAP_SMPS_DYN;
626 ic->ic_htcaps |= IEEE80211_HTCAP_SMPS_DIS;
629 /* Read MAC address, channels, etc from EEPROM. */
630 error = iwn_read_eeprom(sc, macaddr);
632 device_printf(dev, "could not read EEPROM, error %d\n",
637 device_printf(sc->sc_dev, "MIMO %dT%dR, %.4s, address %6D\n",
638 sc->ntxchains, sc->nrxchains, sc->eeprom_domain,
642 /* Set supported HT rates. */
643 ic->ic_sup_mcs[0] = 0xff;
644 if (sc->nrxchains > 1)
645 ic->ic_sup_mcs[1] = 0xff;
646 if (sc->nrxchains > 2)
647 ic->ic_sup_mcs[2] = 0xff;
650 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
652 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
653 ifp->if_init = iwn_init;
654 ifp->if_ioctl = iwn_ioctl;
655 ifp->if_start = iwn_start;
656 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
657 ifq_set_ready(&ifp->if_snd);
659 ieee80211_ifattach(ic, macaddr);
660 ic->ic_vap_create = iwn_vap_create;
661 ic->ic_vap_delete = iwn_vap_delete;
662 ic->ic_raw_xmit = iwn_raw_xmit;
663 ic->ic_node_alloc = iwn_node_alloc;
664 ic->ic_newassoc = iwn_newassoc;
665 ic->ic_wme.wme_update = iwn_wme_update;
666 ic->ic_update_mcast = iwn_update_mcast;
667 ic->ic_scan_start = iwn_scan_start;
668 ic->ic_scan_end = iwn_scan_end;
669 ic->ic_set_channel = iwn_set_channel;
670 ic->ic_scan_curchan = iwn_scan_curchan;
671 ic->ic_scan_mindwell = iwn_scan_mindwell;
672 ic->ic_setregdomain = iwn_setregdomain;
674 ic->ic_ampdu_rx_start = iwn_ampdu_rx_start;
675 ic->ic_ampdu_rx_stop = iwn_ampdu_rx_stop;
676 ic->ic_ampdu_tx_start = iwn_ampdu_tx_start;
677 ic->ic_ampdu_tx_stop = iwn_ampdu_tx_stop;
680 iwn_radiotap_attach(sc);
681 iwn_sysctlattach(sc);
684 * Hook our interrupt after all initialization is complete.
686 error = bus_setup_intr(dev, sc->irq, INTR_MPSAFE,
687 iwn_intr, sc, &sc->sc_ih, NULL);
689 device_printf(dev, "could not set up interrupt, error %d\n",
694 ieee80211_announce(ic);
701 static const struct iwn_hal *
702 iwn_hal_attach(struct iwn_softc *sc)
704 sc->hw_type = (IWN_READ(sc, IWN_HW_REV) >> 4) & 0xf;
706 switch (sc->hw_type) {
707 case IWN_HW_REV_TYPE_4965:
708 sc->sc_hal = &iwn4965_hal;
709 sc->limits = &iwn4965_sensitivity_limits;
710 sc->fwname = "iwn4965fw";
711 sc->txchainmask = IWN_ANT_AB;
712 sc->rxchainmask = IWN_ANT_ABC;
714 case IWN_HW_REV_TYPE_5100:
715 sc->sc_hal = &iwn5000_hal;
716 sc->limits = &iwn5000_sensitivity_limits;
717 sc->fwname = "iwn5000fw";
718 sc->txchainmask = IWN_ANT_B;
719 sc->rxchainmask = IWN_ANT_AB;
721 case IWN_HW_REV_TYPE_5150:
722 sc->sc_hal = &iwn5000_hal;
723 sc->limits = &iwn5150_sensitivity_limits;
724 sc->fwname = "iwn5150fw";
725 sc->txchainmask = IWN_ANT_A;
726 sc->rxchainmask = IWN_ANT_AB;
728 case IWN_HW_REV_TYPE_5300:
729 case IWN_HW_REV_TYPE_5350:
730 sc->sc_hal = &iwn5000_hal;
731 sc->limits = &iwn5000_sensitivity_limits;
732 sc->fwname = "iwn5000fw";
733 sc->txchainmask = IWN_ANT_ABC;
734 sc->rxchainmask = IWN_ANT_ABC;
736 case IWN_HW_REV_TYPE_1000:
737 sc->sc_hal = &iwn5000_hal;
738 sc->limits = &iwn1000_sensitivity_limits;
739 sc->fwname = "iwn1000fw";
740 sc->txchainmask = IWN_ANT_A;
741 sc->rxchainmask = IWN_ANT_AB;
743 case IWN_HW_REV_TYPE_6000:
744 sc->sc_hal = &iwn5000_hal;
745 sc->limits = &iwn6000_sensitivity_limits;
746 sc->fwname = "iwn6000fw";
747 switch (pci_get_device(sc->sc_dev)) {
750 sc->sc_flags |= IWN_FLAG_INTERNAL_PA;
751 sc->txchainmask = IWN_ANT_BC;
752 sc->rxchainmask = IWN_ANT_BC;
755 sc->txchainmask = IWN_ANT_ABC;
756 sc->rxchainmask = IWN_ANT_ABC;
760 case IWN_HW_REV_TYPE_6050:
761 sc->sc_hal = &iwn5000_hal;
762 sc->limits = &iwn6000_sensitivity_limits;
763 sc->fwname = "iwn6000fw";
764 sc->txchainmask = IWN_ANT_AB;
765 sc->rxchainmask = IWN_ANT_AB;
768 device_printf(sc->sc_dev, "adapter type %d not supported\n",
776 * Attach the interface to 802.11 radiotap.
779 iwn_radiotap_attach(struct iwn_softc *sc)
781 struct ifnet *ifp = sc->sc_ifp;
782 struct ieee80211com *ic = ifp->if_l2com;
784 ieee80211_radiotap_attach(ic,
785 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
786 IWN_TX_RADIOTAP_PRESENT,
787 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
788 IWN_RX_RADIOTAP_PRESENT);
791 static struct ieee80211vap *
792 iwn_vap_create(struct ieee80211com *ic,
793 const char name[IFNAMSIZ], int unit, int opmode, int flags,
794 const uint8_t bssid[IEEE80211_ADDR_LEN],
795 const uint8_t mac[IEEE80211_ADDR_LEN])
798 struct ieee80211vap *vap;
800 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
802 ivp = (struct iwn_vap *) kmalloc(sizeof(struct iwn_vap),
803 M_80211_VAP, M_INTWAIT | M_ZERO);
807 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
808 vap->iv_bmissthreshold = 10; /* override default */
809 /* Override with driver methods. */
810 ivp->iv_newstate = vap->iv_newstate;
811 vap->iv_newstate = iwn_newstate;
813 ieee80211_ratectl_init(vap);
814 /* Complete setup. */
815 ieee80211_vap_attach(vap, iwn_media_change, ieee80211_media_status);
816 ic->ic_opmode = opmode;
821 iwn_vap_delete(struct ieee80211vap *vap)
823 struct iwn_vap *ivp = IWN_VAP(vap);
825 ieee80211_ratectl_deinit(vap);
826 ieee80211_vap_detach(vap);
827 kfree(ivp, M_80211_VAP);
831 iwn_cleanup(device_t dev)
833 struct iwn_softc *sc = device_get_softc(dev);
834 struct ifnet *ifp = sc->sc_ifp;
835 struct ieee80211com *ic;
841 ieee80211_draintask(ic, &sc->sc_reinit_task);
842 ieee80211_draintask(ic, &sc->sc_radioon_task);
843 ieee80211_draintask(ic, &sc->sc_radiooff_task);
846 callout_stop(&sc->sc_timer_to);
847 ieee80211_ifdetach(ic);
850 /* Free DMA resources. */
851 iwn_free_rx_ring(sc, &sc->rxq);
852 if (sc->sc_hal != NULL)
853 for (i = 0; i < sc->sc_hal->ntxqs; i++)
854 iwn_free_tx_ring(sc, &sc->txq[i]);
861 if (sc->irq != NULL) {
862 bus_teardown_intr(dev, sc->irq, sc->sc_ih);
863 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
864 if (sc->irq_rid == 1)
865 pci_release_msi(dev);
869 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
874 IWN_LOCK_DESTROY(sc);
879 iwn_detach(device_t dev)
881 struct iwn_softc *sc = (struct iwn_softc *)device_get_softc(dev);
884 bus_dma_tag_destroy(sc->sc_dmat);
889 iwn_nic_lock(struct iwn_softc *sc)
893 /* Request exclusive access to NIC. */
894 IWN_SETBITS(sc, IWN_GP_CNTRL, IWN_GP_CNTRL_MAC_ACCESS_REQ);
896 /* Spin until we actually get the lock. */
897 for (ntries = 0; ntries < 1000; ntries++) {
898 if ((IWN_READ(sc, IWN_GP_CNTRL) &
899 (IWN_GP_CNTRL_MAC_ACCESS_ENA | IWN_GP_CNTRL_SLEEP)) ==
900 IWN_GP_CNTRL_MAC_ACCESS_ENA)
908 iwn_nic_unlock(struct iwn_softc *sc)
910 IWN_CLRBITS(sc, IWN_GP_CNTRL, IWN_GP_CNTRL_MAC_ACCESS_REQ);
913 static __inline uint32_t
914 iwn_prph_read(struct iwn_softc *sc, uint32_t addr)
916 IWN_WRITE(sc, IWN_PRPH_RADDR, IWN_PRPH_DWORD | addr);
917 IWN_BARRIER_READ_WRITE(sc);
918 return IWN_READ(sc, IWN_PRPH_RDATA);
922 iwn_prph_write(struct iwn_softc *sc, uint32_t addr, uint32_t data)
924 IWN_WRITE(sc, IWN_PRPH_WADDR, IWN_PRPH_DWORD | addr);
925 IWN_BARRIER_WRITE(sc);
926 IWN_WRITE(sc, IWN_PRPH_WDATA, data);
930 iwn_prph_setbits(struct iwn_softc *sc, uint32_t addr, uint32_t mask)
932 iwn_prph_write(sc, addr, iwn_prph_read(sc, addr) | mask);
936 iwn_prph_clrbits(struct iwn_softc *sc, uint32_t addr, uint32_t mask)
938 iwn_prph_write(sc, addr, iwn_prph_read(sc, addr) & ~mask);
942 iwn_prph_write_region_4(struct iwn_softc *sc, uint32_t addr,
943 const uint32_t *data, int count)
945 for (; count > 0; count--, data++, addr += 4)
946 iwn_prph_write(sc, addr, *data);
949 static __inline uint32_t
950 iwn_mem_read(struct iwn_softc *sc, uint32_t addr)
952 IWN_WRITE(sc, IWN_MEM_RADDR, addr);
953 IWN_BARRIER_READ_WRITE(sc);
954 return IWN_READ(sc, IWN_MEM_RDATA);
958 iwn_mem_write(struct iwn_softc *sc, uint32_t addr, uint32_t data)
960 IWN_WRITE(sc, IWN_MEM_WADDR, addr);
961 IWN_BARRIER_WRITE(sc);
962 IWN_WRITE(sc, IWN_MEM_WDATA, data);
966 iwn_mem_write_2(struct iwn_softc *sc, uint32_t addr, uint16_t data)
970 tmp = iwn_mem_read(sc, addr & ~3);
972 tmp = (tmp & 0x0000ffff) | data << 16;
974 tmp = (tmp & 0xffff0000) | data;
975 iwn_mem_write(sc, addr & ~3, tmp);
979 iwn_mem_read_region_4(struct iwn_softc *sc, uint32_t addr, uint32_t *data,
982 for (; count > 0; count--, addr += 4)
983 *data++ = iwn_mem_read(sc, addr);
987 iwn_mem_set_region_4(struct iwn_softc *sc, uint32_t addr, uint32_t val,
990 for (; count > 0; count--, addr += 4)
991 iwn_mem_write(sc, addr, val);
995 iwn_eeprom_lock(struct iwn_softc *sc)
999 for (i = 0; i < 100; i++) {
1000 /* Request exclusive access to EEPROM. */
1001 IWN_SETBITS(sc, IWN_HW_IF_CONFIG,
1002 IWN_HW_IF_CONFIG_EEPROM_LOCKED);
1004 /* Spin until we actually get the lock. */
1005 for (ntries = 0; ntries < 100; ntries++) {
1006 if (IWN_READ(sc, IWN_HW_IF_CONFIG) &
1007 IWN_HW_IF_CONFIG_EEPROM_LOCKED)
1015 static __inline void
1016 iwn_eeprom_unlock(struct iwn_softc *sc)
1018 IWN_CLRBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_EEPROM_LOCKED);
1022 * Initialize access by host to One Time Programmable ROM.
1023 * NB: This kind of ROM can be found on 1000 or 6000 Series only.
1026 iwn_init_otprom(struct iwn_softc *sc)
1028 uint16_t prev, base, next;
1031 /* Wait for clock stabilization before accessing prph. */
1032 error = iwn_clock_wait(sc);
1036 error = iwn_nic_lock(sc);
1039 iwn_prph_setbits(sc, IWN_APMG_PS, IWN_APMG_PS_RESET_REQ);
1041 iwn_prph_clrbits(sc, IWN_APMG_PS, IWN_APMG_PS_RESET_REQ);
1044 /* Set auto clock gate disable bit for HW with OTP shadow RAM. */
1045 if (sc->hw_type != IWN_HW_REV_TYPE_1000) {
1046 IWN_SETBITS(sc, IWN_DBG_LINK_PWR_MGMT,
1047 IWN_RESET_LINK_PWR_MGMT_DIS);
1049 IWN_CLRBITS(sc, IWN_EEPROM_GP, IWN_EEPROM_GP_IF_OWNER);
1050 /* Clear ECC status. */
1051 IWN_SETBITS(sc, IWN_OTP_GP,
1052 IWN_OTP_GP_ECC_CORR_STTS | IWN_OTP_GP_ECC_UNCORR_STTS);
1055 * Find the block before last block (contains the EEPROM image)
1056 * for HW without OTP shadow RAM.
1058 if (sc->hw_type == IWN_HW_REV_TYPE_1000) {
1059 /* Switch to absolute addressing mode. */
1060 IWN_CLRBITS(sc, IWN_OTP_GP, IWN_OTP_GP_RELATIVE_ACCESS);
1062 for (count = 0; count < IWN1000_OTP_NBLOCKS; count++) {
1063 error = iwn_read_prom_data(sc, base, &next, 2);
1066 if (next == 0) /* End of linked-list. */
1069 base = le16toh(next);
1071 if (count == 0 || count == IWN1000_OTP_NBLOCKS)
1073 /* Skip "next" word. */
1074 sc->prom_base = prev + 1;
1080 iwn_read_prom_data(struct iwn_softc *sc, uint32_t addr, void *data, int count)
1084 uint8_t *out = data;
1086 addr += sc->prom_base;
1087 for (; count > 0; count -= 2, addr++) {
1088 IWN_WRITE(sc, IWN_EEPROM, addr << 2);
1089 for (ntries = 0; ntries < 10; ntries++) {
1090 val = IWN_READ(sc, IWN_EEPROM);
1091 if (val & IWN_EEPROM_READ_VALID)
1096 device_printf(sc->sc_dev,
1097 "timeout reading ROM at 0x%x\n", addr);
1100 if (sc->sc_flags & IWN_FLAG_HAS_OTPROM) {
1101 /* OTPROM, check for ECC errors. */
1102 tmp = IWN_READ(sc, IWN_OTP_GP);
1103 if (tmp & IWN_OTP_GP_ECC_UNCORR_STTS) {
1104 device_printf(sc->sc_dev,
1105 "OTPROM ECC error at 0x%x\n", addr);
1108 if (tmp & IWN_OTP_GP_ECC_CORR_STTS) {
1109 /* Correctable ECC error, clear bit. */
1110 IWN_SETBITS(sc, IWN_OTP_GP,
1111 IWN_OTP_GP_ECC_CORR_STTS);
1122 iwn_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
1126 KASSERT(nsegs == 1, ("too many DMA segments, %d should be 1", nsegs));
1127 *(bus_addr_t *)arg = segs[0].ds_addr;
1131 iwn_dma_contig_alloc(struct iwn_softc *sc, struct iwn_dma_info *dma,
1132 void **kvap, bus_size_t size, bus_size_t alignment, int flags)
1139 error = bus_dma_tag_create(sc->sc_dmat, alignment,
1140 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, size,
1141 1, size, flags, &dma->tag);
1143 device_printf(sc->sc_dev,
1144 "%s: bus_dma_tag_create failed, error %d\n",
1148 error = bus_dmamem_alloc(dma->tag, (void **)&dma->vaddr,
1149 flags | BUS_DMA_ZERO, &dma->map);
1151 device_printf(sc->sc_dev,
1152 "%s: bus_dmamem_alloc failed, error %d\n", __func__, error);
1155 error = bus_dmamap_load(dma->tag, dma->map, dma->vaddr,
1156 size, iwn_dma_map_addr, &dma->paddr, flags);
1158 device_printf(sc->sc_dev,
1159 "%s: bus_dmamap_load failed, error %d\n", __func__, error);
1167 iwn_dma_contig_free(dma);
1172 iwn_dma_contig_free(struct iwn_dma_info *dma)
1174 if (dma->tag != NULL) {
1175 if (dma->map != NULL) {
1176 if (dma->paddr == 0) {
1177 bus_dmamap_sync(dma->tag, dma->map,
1178 BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
1179 bus_dmamap_unload(dma->tag, dma->map);
1181 bus_dmamem_free(dma->tag, &dma->vaddr, dma->map);
1183 bus_dma_tag_destroy(dma->tag);
1188 iwn_alloc_sched(struct iwn_softc *sc)
1190 /* TX scheduler rings must be aligned on a 1KB boundary. */
1191 return iwn_dma_contig_alloc(sc, &sc->sched_dma,
1192 (void **)&sc->sched, sc->sc_hal->schedsz, 1024, BUS_DMA_NOWAIT);
1196 iwn_free_sched(struct iwn_softc *sc)
1198 iwn_dma_contig_free(&sc->sched_dma);
1202 iwn_alloc_kw(struct iwn_softc *sc)
1204 /* "Keep Warm" page must be aligned on a 4KB boundary. */
1205 return iwn_dma_contig_alloc(sc, &sc->kw_dma, NULL, 4096, 4096,
1210 iwn_free_kw(struct iwn_softc *sc)
1212 iwn_dma_contig_free(&sc->kw_dma);
1216 iwn_alloc_ict(struct iwn_softc *sc)
1218 /* ICT table must be aligned on a 4KB boundary. */
1219 return iwn_dma_contig_alloc(sc, &sc->ict_dma,
1220 (void **)&sc->ict, IWN_ICT_SIZE, 4096, BUS_DMA_NOWAIT);
1224 iwn_free_ict(struct iwn_softc *sc)
1226 iwn_dma_contig_free(&sc->ict_dma);
1230 iwn_alloc_fwmem(struct iwn_softc *sc)
1232 /* Must be aligned on a 16-byte boundary. */
1233 return iwn_dma_contig_alloc(sc, &sc->fw_dma, NULL,
1234 sc->sc_hal->fwsz, 16, BUS_DMA_NOWAIT);
1238 iwn_free_fwmem(struct iwn_softc *sc)
1240 iwn_dma_contig_free(&sc->fw_dma);
1244 iwn_alloc_rx_ring(struct iwn_softc *sc, struct iwn_rx_ring *ring)
1251 /* Allocate RX descriptors (256-byte aligned). */
1252 size = IWN_RX_RING_COUNT * sizeof (uint32_t);
1253 error = iwn_dma_contig_alloc(sc, &ring->desc_dma,
1254 (void **)&ring->desc, size, 256, BUS_DMA_NOWAIT);
1256 device_printf(sc->sc_dev,
1257 "%s: could not allocate Rx ring DMA memory, error %d\n",
1262 error = bus_dma_tag_create(sc->sc_dmat, 1, 0,
1263 BUS_SPACE_MAXADDR_32BIT,
1264 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1,
1265 MCLBYTES, BUS_DMA_NOWAIT, &ring->data_dmat);
1267 device_printf(sc->sc_dev,
1268 "%s: bus_dma_tag_create_failed, error %d\n",
1273 /* Allocate RX status area (16-byte aligned). */
1274 error = iwn_dma_contig_alloc(sc, &ring->stat_dma,
1275 (void **)&ring->stat, sizeof (struct iwn_rx_status),
1276 16, BUS_DMA_NOWAIT);
1278 device_printf(sc->sc_dev,
1279 "%s: could not allocate Rx status DMA memory, error %d\n",
1285 * Allocate and map RX buffers.
1287 for (i = 0; i < IWN_RX_RING_COUNT; i++) {
1288 struct iwn_rx_data *data = &ring->data[i];
1291 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
1293 device_printf(sc->sc_dev,
1294 "%s: bus_dmamap_create failed, error %d\n",
1299 data->m = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
1300 if (data->m == NULL) {
1301 device_printf(sc->sc_dev,
1302 "%s: could not allocate rx mbuf\n", __func__);
1308 error = bus_dmamap_load(ring->data_dmat, data->map,
1309 mtod(data->m, caddr_t), MCLBYTES,
1310 iwn_dma_map_addr, &paddr, BUS_DMA_NOWAIT);
1311 if (error != 0 && error != EFBIG) {
1312 device_printf(sc->sc_dev,
1313 "%s: bus_dmamap_load failed, error %d\n",
1316 error = ENOMEM; /* XXX unique code */
1319 bus_dmamap_sync(ring->data_dmat, data->map,
1320 BUS_DMASYNC_PREWRITE);
1322 /* Set physical address of RX buffer (256-byte aligned). */
1323 ring->desc[i] = htole32(paddr >> 8);
1325 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
1326 BUS_DMASYNC_PREWRITE);
1329 iwn_free_rx_ring(sc, ring);
1334 iwn_reset_rx_ring(struct iwn_softc *sc, struct iwn_rx_ring *ring)
1338 if (iwn_nic_lock(sc) == 0) {
1339 IWN_WRITE(sc, IWN_FH_RX_CONFIG, 0);
1340 for (ntries = 0; ntries < 1000; ntries++) {
1341 if (IWN_READ(sc, IWN_FH_RX_STATUS) &
1342 IWN_FH_RX_STATUS_IDLE)
1349 DPRINTF(sc, IWN_DEBUG_ANY, "%s\n",
1350 "timeout resetting Rx ring");
1354 sc->last_rx_valid = 0;
1358 iwn_free_rx_ring(struct iwn_softc *sc, struct iwn_rx_ring *ring)
1362 iwn_dma_contig_free(&ring->desc_dma);
1363 iwn_dma_contig_free(&ring->stat_dma);
1365 for (i = 0; i < IWN_RX_RING_COUNT; i++) {
1366 struct iwn_rx_data *data = &ring->data[i];
1368 if (data->m != NULL) {
1369 bus_dmamap_sync(ring->data_dmat, data->map,
1370 BUS_DMASYNC_POSTREAD);
1371 bus_dmamap_unload(ring->data_dmat, data->map);
1374 if (data->map != NULL)
1375 bus_dmamap_destroy(ring->data_dmat, data->map);
1380 iwn_alloc_tx_ring(struct iwn_softc *sc, struct iwn_tx_ring *ring, int qid)
1390 /* Allocate TX descriptors (256-byte aligned.) */
1391 size = IWN_TX_RING_COUNT * sizeof(struct iwn_tx_desc);
1392 error = iwn_dma_contig_alloc(sc, &ring->desc_dma,
1393 (void **)&ring->desc, size, 256, BUS_DMA_NOWAIT);
1395 device_printf(sc->sc_dev,
1396 "%s: could not allocate TX ring DMA memory, error %d\n",
1402 * We only use rings 0 through 4 (4 EDCA + cmd) so there is no need
1403 * to allocate commands space for other rings.
1408 size = IWN_TX_RING_COUNT * sizeof(struct iwn_tx_cmd);
1409 error = iwn_dma_contig_alloc(sc, &ring->cmd_dma,
1410 (void **)&ring->cmd, size, 4, BUS_DMA_NOWAIT);
1412 device_printf(sc->sc_dev,
1413 "%s: could not allocate TX cmd DMA memory, error %d\n",
1418 error = bus_dma_tag_create(sc->sc_dmat, 1, 0,
1419 BUS_SPACE_MAXADDR_32BIT,
1420 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, IWN_MAX_SCATTER - 1,
1421 MCLBYTES, BUS_DMA_NOWAIT, &ring->data_dmat);
1423 device_printf(sc->sc_dev,
1424 "%s: bus_dma_tag_create_failed, error %d\n",
1429 paddr = ring->cmd_dma.paddr;
1430 for (i = 0; i < IWN_TX_RING_COUNT; i++) {
1431 struct iwn_tx_data *data = &ring->data[i];
1433 data->cmd_paddr = paddr;
1434 data->scratch_paddr = paddr + 12;
1435 paddr += sizeof (struct iwn_tx_cmd);
1437 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
1439 device_printf(sc->sc_dev,
1440 "%s: bus_dmamap_create failed, error %d\n",
1444 bus_dmamap_sync(ring->data_dmat, data->map,
1445 BUS_DMASYNC_PREWRITE);
1449 iwn_free_tx_ring(sc, ring);
1454 iwn_reset_tx_ring(struct iwn_softc *sc, struct iwn_tx_ring *ring)
1458 for (i = 0; i < IWN_TX_RING_COUNT; i++) {
1459 struct iwn_tx_data *data = &ring->data[i];
1461 if (data->m != NULL) {
1462 bus_dmamap_unload(ring->data_dmat, data->map);
1467 /* Clear TX descriptors. */
1468 memset(ring->desc, 0, ring->desc_dma.size);
1469 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
1470 BUS_DMASYNC_PREWRITE);
1471 sc->qfullmsk &= ~(1 << ring->qid);
1477 iwn_free_tx_ring(struct iwn_softc *sc, struct iwn_tx_ring *ring)
1481 iwn_dma_contig_free(&ring->desc_dma);
1482 iwn_dma_contig_free(&ring->cmd_dma);
1484 for (i = 0; i < IWN_TX_RING_COUNT; i++) {
1485 struct iwn_tx_data *data = &ring->data[i];
1487 if (data->m != NULL) {
1488 bus_dmamap_sync(ring->data_dmat, data->map,
1489 BUS_DMASYNC_POSTWRITE);
1490 bus_dmamap_unload(ring->data_dmat, data->map);
1493 if (data->map != NULL)
1494 bus_dmamap_destroy(ring->data_dmat, data->map);
1499 iwn5000_ict_reset(struct iwn_softc *sc)
1501 /* Disable interrupts. */
1502 IWN_WRITE(sc, IWN_INT_MASK, 0);
1504 /* Reset ICT table. */
1505 memset(sc->ict, 0, IWN_ICT_SIZE);
1508 /* Set physical address of ICT table (4KB aligned.) */
1509 DPRINTF(sc, IWN_DEBUG_RESET, "%s: enabling ICT\n", __func__);
1510 IWN_WRITE(sc, IWN_DRAM_INT_TBL, IWN_DRAM_INT_TBL_ENABLE |
1511 IWN_DRAM_INT_TBL_WRAP_CHECK | sc->ict_dma.paddr >> 12);
1513 /* Enable periodic RX interrupt. */
1514 sc->int_mask |= IWN_INT_RX_PERIODIC;
1515 /* Switch to ICT interrupt mode in driver. */
1516 sc->sc_flags |= IWN_FLAG_USE_ICT;
1518 /* Re-enable interrupts. */
1519 IWN_WRITE(sc, IWN_INT, 0xffffffff);
1520 IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask);
1524 iwn_read_eeprom(struct iwn_softc *sc, uint8_t macaddr[IEEE80211_ADDR_LEN])
1526 const struct iwn_hal *hal = sc->sc_hal;
1530 /* Check whether adapter has an EEPROM or an OTPROM. */
1531 if (sc->hw_type >= IWN_HW_REV_TYPE_1000 &&
1532 (IWN_READ(sc, IWN_OTP_GP) & IWN_OTP_GP_DEV_SEL_OTP))
1533 sc->sc_flags |= IWN_FLAG_HAS_OTPROM;
1534 DPRINTF(sc, IWN_DEBUG_RESET, "%s found\n",
1535 (sc->sc_flags & IWN_FLAG_HAS_OTPROM) ? "OTPROM" : "EEPROM");
1537 /* Adapter has to be powered on for EEPROM access to work. */
1538 error = iwn_apm_init(sc);
1540 device_printf(sc->sc_dev,
1541 "%s: could not power ON adapter, error %d\n",
1546 if ((IWN_READ(sc, IWN_EEPROM_GP) & 0x7) == 0) {
1547 device_printf(sc->sc_dev, "%s: bad ROM signature\n", __func__);
1550 error = iwn_eeprom_lock(sc);
1552 device_printf(sc->sc_dev,
1553 "%s: could not lock ROM, error %d\n",
1558 if (sc->sc_flags & IWN_FLAG_HAS_OTPROM) {
1559 error = iwn_init_otprom(sc);
1561 device_printf(sc->sc_dev,
1562 "%s: could not initialize OTPROM, error %d\n",
1568 iwn_read_prom_data(sc, IWN_EEPROM_RFCFG, &val, 2);
1569 sc->rfcfg = le16toh(val);
1570 DPRINTF(sc, IWN_DEBUG_RESET, "radio config=0x%04x\n", sc->rfcfg);
1572 /* Read MAC address. */
1573 iwn_read_prom_data(sc, IWN_EEPROM_MAC, macaddr, 6);
1575 /* Read adapter-specific information from EEPROM. */
1576 hal->read_eeprom(sc);
1578 iwn_apm_stop(sc); /* Power OFF adapter. */
1580 iwn_eeprom_unlock(sc);
1585 iwn4965_read_eeprom(struct iwn_softc *sc)
1591 /* Read regulatory domain (4 ASCII characters.) */
1592 iwn_read_prom_data(sc, IWN4965_EEPROM_DOMAIN, sc->eeprom_domain, 4);
1594 /* Read the list of authorized channels (20MHz ones only.) */
1595 for (i = 0; i < 5; i++) {
1596 addr = iwn4965_regulatory_bands[i];
1597 iwn_read_eeprom_channels(sc, i, addr);
1600 /* Read maximum allowed TX power for 2GHz and 5GHz bands. */
1601 iwn_read_prom_data(sc, IWN4965_EEPROM_MAXPOW, &val, 2);
1602 sc->maxpwr2GHz = val & 0xff;
1603 sc->maxpwr5GHz = val >> 8;
1604 /* Check that EEPROM values are within valid range. */
1605 if (sc->maxpwr5GHz < 20 || sc->maxpwr5GHz > 50)
1606 sc->maxpwr5GHz = 38;
1607 if (sc->maxpwr2GHz < 20 || sc->maxpwr2GHz > 50)
1608 sc->maxpwr2GHz = 38;
1609 DPRINTF(sc, IWN_DEBUG_RESET, "maxpwr 2GHz=%d 5GHz=%d\n",
1610 sc->maxpwr2GHz, sc->maxpwr5GHz);
1612 /* Read samples for each TX power group. */
1613 iwn_read_prom_data(sc, IWN4965_EEPROM_BANDS, sc->bands,
1616 /* Read voltage at which samples were taken. */
1617 iwn_read_prom_data(sc, IWN4965_EEPROM_VOLTAGE, &val, 2);
1618 sc->eeprom_voltage = (int16_t)le16toh(val);
1619 DPRINTF(sc, IWN_DEBUG_RESET, "voltage=%d (in 0.3V)\n",
1620 sc->eeprom_voltage);
1623 /* Print samples. */
1624 if (sc->sc_debug & IWN_DEBUG_ANY) {
1625 for (i = 0; i < IWN_NBANDS; i++)
1626 iwn4965_print_power_group(sc, i);
1633 iwn4965_print_power_group(struct iwn_softc *sc, int i)
1635 struct iwn4965_eeprom_band *band = &sc->bands[i];
1636 struct iwn4965_eeprom_chan_samples *chans = band->chans;
1639 kprintf("===band %d===\n", i);
1640 kprintf("chan lo=%d, chan hi=%d\n", band->lo, band->hi);
1641 kprintf("chan1 num=%d\n", chans[0].num);
1642 for (c = 0; c < 2; c++) {
1643 for (j = 0; j < IWN_NSAMPLES; j++) {
1644 kprintf("chain %d, sample %d: temp=%d gain=%d "
1645 "power=%d pa_det=%d\n", c, j,
1646 chans[0].samples[c][j].temp,
1647 chans[0].samples[c][j].gain,
1648 chans[0].samples[c][j].power,
1649 chans[0].samples[c][j].pa_det);
1652 kprintf("chan2 num=%d\n", chans[1].num);
1653 for (c = 0; c < 2; c++) {
1654 for (j = 0; j < IWN_NSAMPLES; j++) {
1655 kprintf("chain %d, sample %d: temp=%d gain=%d "
1656 "power=%d pa_det=%d\n", c, j,
1657 chans[1].samples[c][j].temp,
1658 chans[1].samples[c][j].gain,
1659 chans[1].samples[c][j].power,
1660 chans[1].samples[c][j].pa_det);
1667 iwn5000_read_eeprom(struct iwn_softc *sc)
1669 struct iwn5000_eeprom_calib_hdr hdr;
1671 uint32_t addr, base;
1675 /* Read regulatory domain (4 ASCII characters.) */
1676 iwn_read_prom_data(sc, IWN5000_EEPROM_REG, &val, 2);
1677 base = le16toh(val);
1678 iwn_read_prom_data(sc, base + IWN5000_EEPROM_DOMAIN,
1679 sc->eeprom_domain, 4);
1681 /* Read the list of authorized channels (20MHz ones only.) */
1682 for (i = 0; i < 5; i++) {
1683 addr = base + iwn5000_regulatory_bands[i];
1684 iwn_read_eeprom_channels(sc, i, addr);
1687 /* Read enhanced TX power information for 6000 Series. */
1688 if (sc->hw_type >= IWN_HW_REV_TYPE_6000)
1689 iwn_read_eeprom_enhinfo(sc);
1691 iwn_read_prom_data(sc, IWN5000_EEPROM_CAL, &val, 2);
1692 base = le16toh(val);
1693 iwn_read_prom_data(sc, base, &hdr, sizeof hdr);
1694 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
1695 "%s: calib version=%u pa type=%u voltage=%u\n",
1696 __func__, hdr.version, hdr.pa_type, le16toh(hdr.volt));
1697 sc->calib_ver = hdr.version;
1699 if (sc->hw_type == IWN_HW_REV_TYPE_5150) {
1700 /* Compute temperature offset. */
1701 iwn_read_prom_data(sc, base + IWN5000_EEPROM_TEMP, &val, 2);
1702 temp = le16toh(val);
1703 iwn_read_prom_data(sc, base + IWN5000_EEPROM_VOLT, &val, 2);
1704 volt = le16toh(val);
1705 sc->temp_off = temp - (volt / -5);
1706 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "temp=%d volt=%d offset=%dK\n",
1707 temp, volt, sc->temp_off);
1709 /* Read crystal calibration. */
1710 iwn_read_prom_data(sc, base + IWN5000_EEPROM_CRYSTAL,
1711 &sc->eeprom_crystal, sizeof (uint32_t));
1712 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "crystal calibration 0x%08x\n",
1713 le32toh(sc->eeprom_crystal));
1718 * Translate EEPROM flags to net80211.
1721 iwn_eeprom_channel_flags(struct iwn_eeprom_chan *channel)
1726 if ((channel->flags & IWN_EEPROM_CHAN_ACTIVE) == 0)
1727 nflags |= IEEE80211_CHAN_PASSIVE;
1728 if ((channel->flags & IWN_EEPROM_CHAN_IBSS) == 0)
1729 nflags |= IEEE80211_CHAN_NOADHOC;
1730 if (channel->flags & IWN_EEPROM_CHAN_RADAR) {
1731 nflags |= IEEE80211_CHAN_DFS;
1732 /* XXX apparently IBSS may still be marked */
1733 nflags |= IEEE80211_CHAN_NOADHOC;
1740 iwn_read_eeprom_band(struct iwn_softc *sc, int n)
1742 struct ifnet *ifp = sc->sc_ifp;
1743 struct ieee80211com *ic = ifp->if_l2com;
1744 struct iwn_eeprom_chan *channels = sc->eeprom_channels[n];
1745 const struct iwn_chan_band *band = &iwn_bands[n];
1746 struct ieee80211_channel *c;
1747 int i, chan, nflags;
1749 for (i = 0; i < band->nchan; i++) {
1750 if (!(channels[i].flags & IWN_EEPROM_CHAN_VALID)) {
1751 DPRINTF(sc, IWN_DEBUG_RESET,
1752 "skip chan %d flags 0x%x maxpwr %d\n",
1753 band->chan[i], channels[i].flags,
1754 channels[i].maxpwr);
1757 chan = band->chan[i];
1758 nflags = iwn_eeprom_channel_flags(&channels[i]);
1760 DPRINTF(sc, IWN_DEBUG_RESET,
1761 "add chan %d flags 0x%x maxpwr %d\n",
1762 chan, channels[i].flags, channels[i].maxpwr);
1764 c = &ic->ic_channels[ic->ic_nchans++];
1766 c->ic_maxregpower = channels[i].maxpwr;
1767 c->ic_maxpower = 2*c->ic_maxregpower;
1769 /* Save maximum allowed TX power for this channel. */
1770 sc->maxpwr[chan] = channels[i].maxpwr;
1772 if (n == 0) { /* 2GHz band */
1773 c->ic_freq = ieee80211_ieee2mhz(chan,
1776 /* G =>'s B is supported */
1777 c->ic_flags = IEEE80211_CHAN_B | nflags;
1779 c = &ic->ic_channels[ic->ic_nchans++];
1781 c->ic_flags = IEEE80211_CHAN_G | nflags;
1782 } else { /* 5GHz band */
1783 c->ic_freq = ieee80211_ieee2mhz(chan,
1785 c->ic_flags = IEEE80211_CHAN_A | nflags;
1786 sc->sc_flags |= IWN_FLAG_HAS_5GHZ;
1789 /* XXX no constraints on using HT20 */
1790 /* add HT20, HT40 added separately */
1791 c = &ic->ic_channels[ic->ic_nchans++];
1793 c->ic_flags |= IEEE80211_CHAN_HT20;
1794 /* XXX NARROW =>'s 1/2 and 1/4 width? */
1801 iwn_read_eeprom_ht40(struct iwn_softc *sc, int n)
1803 struct ifnet *ifp = sc->sc_ifp;
1804 struct ieee80211com *ic = ifp->if_l2com;
1805 struct iwn_eeprom_chan *channels = sc->eeprom_channels[n];
1806 const struct iwn_chan_band *band = &iwn_bands[n];
1807 struct ieee80211_channel *c, *cent, *extc;
1810 for (i = 0; i < band->nchan; i++) {
1811 if (!(channels[i].flags & IWN_EEPROM_CHAN_VALID) ||
1812 !(channels[i].flags & IWN_EEPROM_CHAN_WIDE)) {
1813 DPRINTF(sc, IWN_DEBUG_RESET,
1814 "skip chan %d flags 0x%x maxpwr %d\n",
1815 band->chan[i], channels[i].flags,
1816 channels[i].maxpwr);
1820 * Each entry defines an HT40 channel pair; find the
1821 * center channel, then the extension channel above.
1823 cent = ieee80211_find_channel_byieee(ic, band->chan[i],
1824 band->flags & ~IEEE80211_CHAN_HT);
1825 if (cent == NULL) { /* XXX shouldn't happen */
1826 device_printf(sc->sc_dev,
1827 "%s: no entry for channel %d\n",
1828 __func__, band->chan[i]);
1831 extc = ieee80211_find_channel(ic, cent->ic_freq+20,
1832 band->flags & ~IEEE80211_CHAN_HT);
1834 DPRINTF(sc, IWN_DEBUG_RESET,
1835 "skip chan %d, extension channel not found\n",
1840 DPRINTF(sc, IWN_DEBUG_RESET,
1841 "add ht40 chan %d flags 0x%x maxpwr %d\n",
1842 band->chan[i], channels[i].flags, channels[i].maxpwr);
1844 c = &ic->ic_channels[ic->ic_nchans++];
1846 c->ic_extieee = extc->ic_ieee;
1847 c->ic_flags &= ~IEEE80211_CHAN_HT;
1848 c->ic_flags |= IEEE80211_CHAN_HT40U;
1849 c = &ic->ic_channels[ic->ic_nchans++];
1851 c->ic_extieee = cent->ic_ieee;
1852 c->ic_flags &= ~IEEE80211_CHAN_HT;
1853 c->ic_flags |= IEEE80211_CHAN_HT40D;
1859 iwn_read_eeprom_channels(struct iwn_softc *sc, int n, uint32_t addr)
1861 struct ifnet *ifp = sc->sc_ifp;
1862 struct ieee80211com *ic = ifp->if_l2com;
1864 iwn_read_prom_data(sc, addr, &sc->eeprom_channels[n],
1865 iwn_bands[n].nchan * sizeof (struct iwn_eeprom_chan));
1868 iwn_read_eeprom_band(sc, n);
1871 iwn_read_eeprom_ht40(sc, n);
1873 ieee80211_sort_channels(ic->ic_channels, ic->ic_nchans);
1876 #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
1879 iwn_read_eeprom_enhinfo(struct iwn_softc *sc)
1881 struct iwn_eeprom_enhinfo enhinfo[35];
1886 iwn_read_prom_data(sc, IWN5000_EEPROM_REG, &val, 2);
1887 base = le16toh(val);
1888 iwn_read_prom_data(sc, base + IWN6000_EEPROM_ENHINFO,
1889 enhinfo, sizeof enhinfo);
1891 memset(sc->enh_maxpwr, 0, sizeof sc->enh_maxpwr);
1892 for (i = 0; i < nitems(enhinfo); i++) {
1893 if (enhinfo[i].chan == 0 || enhinfo[i].reserved != 0)
1894 continue; /* Skip invalid entries. */
1897 if (sc->txchainmask & IWN_ANT_A)
1898 maxpwr = MAX(maxpwr, enhinfo[i].chain[0]);
1899 if (sc->txchainmask & IWN_ANT_B)
1900 maxpwr = MAX(maxpwr, enhinfo[i].chain[1]);
1901 if (sc->txchainmask & IWN_ANT_C)
1902 maxpwr = MAX(maxpwr, enhinfo[i].chain[2]);
1903 if (sc->ntxchains == 2)
1904 maxpwr = MAX(maxpwr, enhinfo[i].mimo2);
1905 else if (sc->ntxchains == 3)
1906 maxpwr = MAX(maxpwr, enhinfo[i].mimo3);
1907 maxpwr /= 2; /* Convert half-dBm to dBm. */
1909 DPRINTF(sc, IWN_DEBUG_RESET, "enhinfo %d, maxpwr=%d\n", i,
1911 sc->enh_maxpwr[i] = maxpwr;
1915 static struct ieee80211_node *
1916 iwn_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN])
1918 return kmalloc(sizeof (struct iwn_node), M_80211_NODE,M_INTWAIT | M_ZERO);
1922 iwn_newassoc(struct ieee80211_node *ni, int isnew)
1926 ieee80211_ratectl_node_deinit(ni);
1929 ieee80211_ratectl_node_init(ni);
1933 iwn_media_change(struct ifnet *ifp)
1935 int error = ieee80211_media_change(ifp);
1936 /* NB: only the fixed rate can change and that doesn't need a reset */
1937 return (error == ENETRESET ? 0 : error);
1941 iwn_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
1943 struct iwn_vap *ivp = IWN_VAP(vap);
1944 struct ieee80211com *ic = vap->iv_ic;
1945 struct iwn_softc *sc = ic->ic_ifp->if_softc;
1948 DPRINTF(sc, IWN_DEBUG_STATE, "%s: %s -> %s\n", __func__,
1949 ieee80211_state_name[vap->iv_state],
1950 ieee80211_state_name[nstate]);
1952 IEEE80211_UNLOCK(ic);
1954 callout_stop(&sc->sc_timer_to);
1956 if (nstate == IEEE80211_S_AUTH && vap->iv_state != IEEE80211_S_AUTH) {
1957 /* !AUTH -> AUTH requires adapter config */
1958 /* Reset state to handle reassociations correctly. */
1959 sc->rxon.associd = 0;
1960 sc->rxon.filter &= ~htole32(IWN_FILTER_BSS);
1961 iwn_calib_reset(sc);
1962 error = iwn_auth(sc, vap);
1964 if (nstate == IEEE80211_S_RUN && vap->iv_state != IEEE80211_S_RUN) {
1966 * !RUN -> RUN requires setting the association id
1967 * which is done with a firmware cmd. We also defer
1968 * starting the timers until that work is done.
1970 error = iwn_run(sc, vap);
1972 if (nstate == IEEE80211_S_RUN) {
1974 * RUN -> RUN transition; just restart the timers.
1976 iwn_calib_reset(sc);
1980 return ivp->iv_newstate(vap, nstate, arg);
1984 * Process an RX_PHY firmware notification. This is usually immediately
1985 * followed by an MPDU_RX_DONE notification.
1988 iwn_rx_phy(struct iwn_softc *sc, struct iwn_rx_desc *desc,
1989 struct iwn_rx_data *data)
1991 struct iwn_rx_stat *stat = (struct iwn_rx_stat *)(desc + 1);
1993 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: received PHY stats\n", __func__);
1994 bus_dmamap_sync(sc->rxq.data_dmat, data->map, BUS_DMASYNC_POSTREAD);
1996 /* Save RX statistics, they will be used on MPDU_RX_DONE. */
1997 memcpy(&sc->last_rx_stat, stat, sizeof (*stat));
1998 sc->last_rx_valid = 1;
2002 iwn_timer_timeout(void *arg)
2004 struct iwn_softc *sc = arg;
2009 if (sc->calib_cnt && --sc->calib_cnt == 0) {
2010 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s\n",
2011 "send statistics request");
2012 (void) iwn_cmd(sc, IWN_CMD_GET_STATISTICS, &flags,
2014 sc->calib_cnt = 60; /* do calibration every 60s */
2016 iwn_watchdog(sc); /* NB: piggyback tx watchdog */
2017 callout_reset(&sc->sc_timer_to, hz, iwn_timer_timeout, sc);
2022 iwn_calib_reset(struct iwn_softc *sc)
2024 callout_reset(&sc->sc_timer_to, hz, iwn_timer_timeout, sc);
2025 sc->calib_cnt = 60; /* do calibration every 60s */
2029 * Process an RX_DONE (4965AGN only) or MPDU_RX_DONE firmware notification.
2030 * Each MPDU_RX_DONE notification must be preceded by an RX_PHY one.
2033 iwn_rx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc,
2034 struct iwn_rx_data *data)
2036 const struct iwn_hal *hal = sc->sc_hal;
2037 struct ifnet *ifp = sc->sc_ifp;
2038 struct ieee80211com *ic = ifp->if_l2com;
2039 struct iwn_rx_ring *ring = &sc->rxq;
2040 struct ieee80211_frame *wh;
2041 struct ieee80211_node *ni;
2042 struct mbuf *m, *m1;
2043 struct iwn_rx_stat *stat;
2047 int error, len, rssi, nf;
2049 if (desc->type == IWN_MPDU_RX_DONE) {
2050 /* Check for prior RX_PHY notification. */
2051 if (!sc->last_rx_valid) {
2052 DPRINTF(sc, IWN_DEBUG_ANY,
2053 "%s: missing RX_PHY\n", __func__);
2057 sc->last_rx_valid = 0;
2058 stat = &sc->last_rx_stat;
2060 stat = (struct iwn_rx_stat *)(desc + 1);
2062 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTREAD);
2064 if (stat->cfg_phy_len > IWN_STAT_MAXLEN) {
2065 device_printf(sc->sc_dev,
2066 "%s: invalid rx statistic header, len %d\n",
2067 __func__, stat->cfg_phy_len);
2071 if (desc->type == IWN_MPDU_RX_DONE) {
2072 struct iwn_rx_mpdu *mpdu = (struct iwn_rx_mpdu *)(desc + 1);
2073 head = (caddr_t)(mpdu + 1);
2074 len = le16toh(mpdu->len);
2076 head = (caddr_t)(stat + 1) + stat->cfg_phy_len;
2077 len = le16toh(stat->len);
2080 flags = le32toh(*(uint32_t *)(head + len));
2082 /* Discard frames with a bad FCS early. */
2083 if ((flags & IWN_RX_NOERROR) != IWN_RX_NOERROR) {
2084 DPRINTF(sc, IWN_DEBUG_RECV, "%s: rx flags error %x\n",
2089 /* Discard frames that are too short. */
2090 if (len < sizeof (*wh)) {
2091 DPRINTF(sc, IWN_DEBUG_RECV, "%s: frame too short: %d\n",
2097 /* XXX don't need mbuf, just dma buffer */
2098 m1 = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
2100 DPRINTF(sc, IWN_DEBUG_ANY, "%s: no mbuf to restock ring\n",
2105 bus_dmamap_unload(ring->data_dmat, data->map);
2107 error = bus_dmamap_load(ring->data_dmat, data->map,
2108 mtod(m1, caddr_t), MCLBYTES,
2109 iwn_dma_map_addr, &paddr, BUS_DMA_NOWAIT);
2110 if (error != 0 && error != EFBIG) {
2111 device_printf(sc->sc_dev,
2112 "%s: bus_dmamap_load failed, error %d\n", __func__, error);
2120 /* Update RX descriptor. */
2121 ring->desc[ring->cur] = htole32(paddr >> 8);
2122 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
2123 BUS_DMASYNC_PREWRITE);
2125 /* Finalize mbuf. */
2126 m->m_pkthdr.rcvif = ifp;
2128 m->m_pkthdr.len = m->m_len = len;
2130 rssi = hal->get_rssi(sc, stat);
2132 /* Grab a reference to the source node. */
2133 wh = mtod(m, struct ieee80211_frame *);
2134 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh);
2135 nf = (ni != NULL && ni->ni_vap->iv_state == IEEE80211_S_RUN &&
2136 (ic->ic_flags & IEEE80211_F_SCAN) == 0) ? sc->noise : -95;
2138 if (ieee80211_radiotap_active(ic)) {
2139 struct iwn_rx_radiotap_header *tap = &sc->sc_rxtap;
2141 tap->wr_tsft = htole64(stat->tstamp);
2143 if (stat->flags & htole16(IWN_STAT_FLAG_SHPREAMBLE))
2144 tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
2145 switch (stat->rate) {
2147 case 10: tap->wr_rate = 2; break;
2148 case 20: tap->wr_rate = 4; break;
2149 case 55: tap->wr_rate = 11; break;
2150 case 110: tap->wr_rate = 22; break;
2152 case 0xd: tap->wr_rate = 12; break;
2153 case 0xf: tap->wr_rate = 18; break;
2154 case 0x5: tap->wr_rate = 24; break;
2155 case 0x7: tap->wr_rate = 36; break;
2156 case 0x9: tap->wr_rate = 48; break;
2157 case 0xb: tap->wr_rate = 72; break;
2158 case 0x1: tap->wr_rate = 96; break;
2159 case 0x3: tap->wr_rate = 108; break;
2160 /* Unknown rate: should not happen. */
2161 default: tap->wr_rate = 0;
2163 tap->wr_dbm_antsignal = rssi;
2164 tap->wr_dbm_antnoise = nf;
2169 /* Send the frame to the 802.11 layer. */
2171 (void) ieee80211_input(ni, m, rssi - nf, nf);
2172 /* Node is no longer needed. */
2173 ieee80211_free_node(ni);
2175 (void) ieee80211_input_all(ic, m, rssi - nf, nf);
2181 /* Process an incoming Compressed BlockAck. */
2183 iwn_rx_compressed_ba(struct iwn_softc *sc, struct iwn_rx_desc *desc,
2184 struct iwn_rx_data *data)
2186 struct iwn_compressed_ba *ba = (struct iwn_compressed_ba *)(desc + 1);
2187 struct iwn_tx_ring *txq;
2189 txq = &sc->txq[letoh16(ba->qid)];
2195 * Process a CALIBRATION_RESULT notification sent by the initialization
2196 * firmware on response to a CMD_CALIB_CONFIG command (5000 only.)
2199 iwn5000_rx_calib_results(struct iwn_softc *sc, struct iwn_rx_desc *desc,
2200 struct iwn_rx_data *data)
2202 struct iwn_phy_calib *calib = (struct iwn_phy_calib *)(desc + 1);
2205 /* Runtime firmware should not send such a notification. */
2206 if (sc->sc_flags & IWN_FLAG_CALIB_DONE)
2209 bus_dmamap_sync(sc->rxq.data_dmat, data->map, BUS_DMASYNC_POSTREAD);
2210 len = (le32toh(desc->len) & 0x3fff) - 4;
2212 switch (calib->code) {
2213 case IWN5000_PHY_CALIB_DC:
2214 if (sc->hw_type == IWN_HW_REV_TYPE_5150 ||
2215 sc->hw_type == IWN_HW_REV_TYPE_6050)
2218 case IWN5000_PHY_CALIB_LO:
2221 case IWN5000_PHY_CALIB_TX_IQ:
2224 case IWN5000_PHY_CALIB_TX_IQ_PERIODIC:
2225 if (sc->hw_type < IWN_HW_REV_TYPE_6000 &&
2226 sc->hw_type != IWN_HW_REV_TYPE_5150)
2229 case IWN5000_PHY_CALIB_BASE_BAND:
2233 if (idx == -1) /* Ignore other results. */
2236 /* Save calibration result. */
2237 if (sc->calibcmd[idx].buf != NULL)
2238 kfree(sc->calibcmd[idx].buf, M_DEVBUF);
2239 sc->calibcmd[idx].buf = kmalloc(len, M_DEVBUF, M_INTWAIT);
2240 if (sc->calibcmd[idx].buf == NULL) {
2241 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
2242 "not enough memory for calibration result %d\n",
2246 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
2247 "saving calibration result code=%d len=%d\n", calib->code, len);
2248 sc->calibcmd[idx].len = len;
2249 memcpy(sc->calibcmd[idx].buf, calib, len);
2253 * Process an RX_STATISTICS or BEACON_STATISTICS firmware notification.
2254 * The latter is sent by the firmware after each received beacon.
2257 iwn_rx_statistics(struct iwn_softc *sc, struct iwn_rx_desc *desc,
2258 struct iwn_rx_data *data)
2260 const struct iwn_hal *hal = sc->sc_hal;
2261 struct ifnet *ifp = sc->sc_ifp;
2262 struct ieee80211com *ic = ifp->if_l2com;
2263 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2264 struct iwn_calib_state *calib = &sc->calib;
2265 struct iwn_stats *stats = (struct iwn_stats *)(desc + 1);
2268 /* Beacon stats are meaningful only when associated and not scanning. */
2269 if (vap->iv_state != IEEE80211_S_RUN ||
2270 (ic->ic_flags & IEEE80211_F_SCAN))
2273 bus_dmamap_sync(sc->rxq.data_dmat, data->map, BUS_DMASYNC_POSTREAD);
2274 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: cmd %d\n", __func__, desc->type);
2275 iwn_calib_reset(sc); /* Reset TX power calibration timeout. */
2277 /* Test if temperature has changed. */
2278 if (stats->general.temp != sc->rawtemp) {
2279 /* Convert "raw" temperature to degC. */
2280 sc->rawtemp = stats->general.temp;
2281 temp = hal->get_temperature(sc);
2282 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: temperature %d\n",
2285 /* Update TX power if need be (4965AGN only.) */
2286 if (sc->hw_type == IWN_HW_REV_TYPE_4965)
2287 iwn4965_power_calibration(sc, temp);
2290 if (desc->type != IWN_BEACON_STATISTICS)
2291 return; /* Reply to a statistics request. */
2293 sc->noise = iwn_get_noise(&stats->rx.general);
2294 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: noise %d\n", __func__, sc->noise);
2296 /* Test that RSSI and noise are present in stats report. */
2297 if (le32toh(stats->rx.general.flags) != 1) {
2298 DPRINTF(sc, IWN_DEBUG_ANY, "%s\n",
2299 "received statistics without RSSI");
2303 if (calib->state == IWN_CALIB_STATE_ASSOC)
2304 iwn_collect_noise(sc, &stats->rx.general);
2305 else if (calib->state == IWN_CALIB_STATE_RUN)
2306 iwn_tune_sensitivity(sc, &stats->rx);
2310 * Process a TX_DONE firmware notification. Unfortunately, the 4965AGN
2311 * and 5000 adapters have different incompatible TX status formats.
2314 iwn4965_tx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc,
2315 struct iwn_rx_data *data)
2317 struct iwn4965_tx_stat *stat = (struct iwn4965_tx_stat *)(desc + 1);
2318 struct iwn_tx_ring *ring = &sc->txq[desc->qid & 0xf];
2320 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: "
2321 "qid %d idx %d retries %d nkill %d rate %x duration %d status %x\n",
2322 __func__, desc->qid, desc->idx, stat->ackfailcnt,
2323 stat->btkillcnt, stat->rate, le16toh(stat->duration),
2324 le32toh(stat->status));
2326 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTREAD);
2327 iwn_tx_done(sc, desc, stat->ackfailcnt, le32toh(stat->status) & 0xff);
2331 iwn5000_tx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc,
2332 struct iwn_rx_data *data)
2334 struct iwn5000_tx_stat *stat = (struct iwn5000_tx_stat *)(desc + 1);
2335 struct iwn_tx_ring *ring = &sc->txq[desc->qid & 0xf];
2337 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: "
2338 "qid %d idx %d retries %d nkill %d rate %x duration %d status %x\n",
2339 __func__, desc->qid, desc->idx, stat->ackfailcnt,
2340 stat->btkillcnt, stat->rate, le16toh(stat->duration),
2341 le32toh(stat->status));
2344 /* Reset TX scheduler slot. */
2345 iwn5000_reset_sched(sc, desc->qid & 0xf, desc->idx);
2348 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTREAD);
2349 iwn_tx_done(sc, desc, stat->ackfailcnt, le16toh(stat->status) & 0xff);
2353 * Adapter-independent backend for TX_DONE firmware notifications.
2356 iwn_tx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc, int ackfailcnt,
2359 struct ifnet *ifp = sc->sc_ifp;
2360 struct iwn_tx_ring *ring = &sc->txq[desc->qid & 0xf];
2361 struct iwn_tx_data *data = &ring->data[desc->idx];
2363 struct ieee80211_node *ni;
2364 struct ieee80211vap *vap;
2366 KASSERT(data->ni != NULL, ("no node"));
2368 /* Unmap and free mbuf. */
2369 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTWRITE);
2370 bus_dmamap_unload(ring->data_dmat, data->map);
2371 m = data->m, data->m = NULL;
2372 ni = data->ni, data->ni = NULL;
2375 if (m->m_flags & M_TXCB) {
2377 * Channels marked for "radar" require traffic to be received
2378 * to unlock before we can transmit. Until traffic is seen
2379 * any attempt to transmit is returned immediately with status
2380 * set to IWN_TX_FAIL_TX_LOCKED. Unfortunately this can easily
2381 * happen on first authenticate after scanning. To workaround
2382 * this we ignore a failure of this sort in AUTH state so the
2383 * 802.11 layer will fall back to using a timeout to wait for
2384 * the AUTH reply. This allows the firmware time to see
2385 * traffic so a subsequent retry of AUTH succeeds. It's
2386 * unclear why the firmware does not maintain state for
2387 * channels recently visited as this would allow immediate
2388 * use of the channel after a scan (where we see traffic).
2390 if (status == IWN_TX_FAIL_TX_LOCKED &&
2391 ni->ni_vap->iv_state == IEEE80211_S_AUTH)
2392 ieee80211_process_callback(ni, m, 0);
2394 ieee80211_process_callback(ni, m,
2395 (status & IWN_TX_FAIL) != 0);
2399 * Update rate control statistics for the node.
2401 if (status & 0x80) {
2403 ieee80211_ratectl_tx_complete(vap, ni,
2404 IEEE80211_RATECTL_TX_FAILURE, &ackfailcnt, NULL);
2406 ieee80211_ratectl_tx_complete(vap, ni,
2407 IEEE80211_RATECTL_TX_SUCCESS, &ackfailcnt, NULL);
2410 ieee80211_free_node(ni);
2412 sc->sc_tx_timer = 0;
2413 if (--ring->queued < IWN_TX_RING_LOMARK) {
2414 sc->qfullmsk &= ~(1 << ring->qid);
2415 if (sc->qfullmsk == 0 &&
2416 (ifp->if_flags & IFF_OACTIVE)) {
2417 ifp->if_flags &= ~IFF_OACTIVE;
2418 iwn_start_locked(ifp);
2424 * Process a "command done" firmware notification. This is where we wakeup
2425 * processes waiting for a synchronous command completion.
2428 iwn_cmd_done(struct iwn_softc *sc, struct iwn_rx_desc *desc)
2430 struct iwn_tx_ring *ring = &sc->txq[4];
2431 struct iwn_tx_data *data;
2433 if ((desc->qid & 0xf) != 4)
2434 return; /* Not a command ack. */
2436 data = &ring->data[desc->idx];
2438 /* If the command was mapped in an mbuf, free it. */
2439 if (data->m != NULL) {
2440 bus_dmamap_unload(ring->data_dmat, data->map);
2444 wakeup(&ring->desc[desc->idx]);
2448 * Process an INT_FH_RX or INT_SW_RX interrupt.
2451 iwn_notif_intr(struct iwn_softc *sc)
2453 struct ifnet *ifp = sc->sc_ifp;
2454 struct ieee80211com *ic = ifp->if_l2com;
2455 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2458 bus_dmamap_sync(sc->rxq.stat_dma.tag, sc->rxq.stat_dma.map,
2459 BUS_DMASYNC_POSTREAD);
2461 hw = le16toh(sc->rxq.stat->closed_count) & 0xfff;
2462 while (sc->rxq.cur != hw) {
2463 struct iwn_rx_data *data = &sc->rxq.data[sc->rxq.cur];
2464 struct iwn_rx_desc *desc;
2466 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2467 BUS_DMASYNC_POSTREAD);
2468 desc = mtod(data->m, struct iwn_rx_desc *);
2470 DPRINTF(sc, IWN_DEBUG_RECV,
2471 "%s: qid %x idx %d flags %x type %d(%s) len %d\n",
2472 __func__, desc->qid & 0xf, desc->idx, desc->flags,
2473 desc->type, iwn_intr_str(desc->type),
2474 le16toh(desc->len));
2476 if (!(desc->qid & 0x80)) /* Reply to a command. */
2477 iwn_cmd_done(sc, desc);
2479 switch (desc->type) {
2481 iwn_rx_phy(sc, desc, data);
2484 case IWN_RX_DONE: /* 4965AGN only. */
2485 case IWN_MPDU_RX_DONE:
2486 /* An 802.11 frame has been received. */
2487 iwn_rx_done(sc, desc, data);
2491 case IWN_RX_COMPRESSED_BA:
2492 /* A Compressed BlockAck has been received. */
2493 iwn_rx_compressed_ba(sc, desc, data);
2498 /* An 802.11 frame has been transmitted. */
2499 sc->sc_hal->tx_done(sc, desc, data);
2502 case IWN_RX_STATISTICS:
2503 case IWN_BEACON_STATISTICS:
2504 iwn_rx_statistics(sc, desc, data);
2507 case IWN_BEACON_MISSED:
2509 struct iwn_beacon_missed *miss =
2510 (struct iwn_beacon_missed *)(desc + 1);
2513 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2514 BUS_DMASYNC_POSTREAD);
2515 misses = le32toh(miss->consecutive);
2517 /* XXX not sure why we're notified w/ zero */
2520 DPRINTF(sc, IWN_DEBUG_STATE,
2521 "%s: beacons missed %d/%d\n", __func__,
2522 misses, le32toh(miss->total));
2525 * If more than 5 consecutive beacons are missed,
2526 * reinitialize the sensitivity state machine.
2528 if (vap->iv_state == IEEE80211_S_RUN && misses > 5)
2529 (void) iwn_init_sensitivity(sc);
2530 if (misses >= vap->iv_bmissthreshold) {
2532 ieee80211_beacon_miss(ic);
2539 struct iwn_ucode_info *uc =
2540 (struct iwn_ucode_info *)(desc + 1);
2542 /* The microcontroller is ready. */
2543 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2544 BUS_DMASYNC_POSTREAD);
2545 DPRINTF(sc, IWN_DEBUG_RESET,
2546 "microcode alive notification version=%d.%d "
2547 "subtype=%x alive=%x\n", uc->major, uc->minor,
2548 uc->subtype, le32toh(uc->valid));
2550 if (le32toh(uc->valid) != 1) {
2551 device_printf(sc->sc_dev,
2552 "microcontroller initialization failed");
2555 if (uc->subtype == IWN_UCODE_INIT) {
2556 /* Save microcontroller report. */
2557 memcpy(&sc->ucode_info, uc, sizeof (*uc));
2559 /* Save the address of the error log in SRAM. */
2560 sc->errptr = le32toh(uc->errptr);
2563 case IWN_STATE_CHANGED:
2565 uint32_t *status = (uint32_t *)(desc + 1);
2568 * State change allows hardware switch change to be
2569 * noted. However, we handle this in iwn_intr as we
2570 * get both the enable/disble intr.
2572 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2573 BUS_DMASYNC_POSTREAD);
2574 DPRINTF(sc, IWN_DEBUG_INTR, "state changed to %x\n",
2578 case IWN_START_SCAN:
2580 struct iwn_start_scan *scan =
2581 (struct iwn_start_scan *)(desc + 1);
2583 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2584 BUS_DMASYNC_POSTREAD);
2585 DPRINTF(sc, IWN_DEBUG_ANY,
2586 "%s: scanning channel %d status %x\n",
2587 __func__, scan->chan, le32toh(scan->status));
2592 struct iwn_stop_scan *scan =
2593 (struct iwn_stop_scan *)(desc + 1);
2595 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2596 BUS_DMASYNC_POSTREAD);
2597 DPRINTF(sc, IWN_DEBUG_STATE,
2598 "scan finished nchan=%d status=%d chan=%d\n",
2599 scan->nchan, scan->status, scan->chan);
2602 ieee80211_scan_next(vap);
2606 case IWN5000_CALIBRATION_RESULT:
2607 iwn5000_rx_calib_results(sc, desc, data);
2610 case IWN5000_CALIBRATION_DONE:
2611 sc->sc_flags |= IWN_FLAG_CALIB_DONE;
2616 sc->rxq.cur = (sc->rxq.cur + 1) % IWN_RX_RING_COUNT;
2619 /* Tell the firmware what we have processed. */
2620 hw = (hw == 0) ? IWN_RX_RING_COUNT - 1 : hw - 1;
2621 IWN_WRITE(sc, IWN_FH_RX_WPTR, hw & ~7);
2625 * Process an INT_WAKEUP interrupt raised when the microcontroller wakes up
2626 * from power-down sleep mode.
2629 iwn_wakeup_intr(struct iwn_softc *sc)
2633 DPRINTF(sc, IWN_DEBUG_RESET, "%s: ucode wakeup from power-down sleep\n",
2636 /* Wakeup RX and TX rings. */
2637 IWN_WRITE(sc, IWN_FH_RX_WPTR, sc->rxq.cur & ~7);
2638 for (qid = 0; qid < sc->sc_hal->ntxqs; qid++) {
2639 struct iwn_tx_ring *ring = &sc->txq[qid];
2640 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | ring->cur);
2645 iwn_rftoggle_intr(struct iwn_softc *sc)
2647 struct ifnet *ifp = sc->sc_ifp;
2648 struct ieee80211com *ic = ifp->if_l2com;
2649 uint32_t tmp = IWN_READ(sc, IWN_GP_CNTRL);
2651 IWN_LOCK_ASSERT(sc);
2653 device_printf(sc->sc_dev, "RF switch: radio %s\n",
2654 (tmp & IWN_GP_CNTRL_RFKILL) ? "enabled" : "disabled");
2655 if (tmp & IWN_GP_CNTRL_RFKILL)
2656 ieee80211_runtask(ic, &sc->sc_radioon_task);
2658 ieee80211_runtask(ic, &sc->sc_radiooff_task);
2662 * Dump the error log of the firmware when a firmware panic occurs. Although
2663 * we can't debug the firmware because it is neither open source nor free, it
2664 * can help us to identify certain classes of problems.
2667 iwn_fatal_intr(struct iwn_softc *sc)
2669 const struct iwn_hal *hal = sc->sc_hal;
2670 struct iwn_fw_dump dump;
2673 IWN_LOCK_ASSERT(sc);
2675 /* Force a complete recalibration on next init. */
2676 sc->sc_flags &= ~IWN_FLAG_CALIB_DONE;
2678 /* Check that the error log address is valid. */
2679 if (sc->errptr < IWN_FW_DATA_BASE ||
2680 sc->errptr + sizeof (dump) >
2681 IWN_FW_DATA_BASE + hal->fw_data_maxsz) {
2682 kprintf("%s: bad firmware error log address 0x%08x\n",
2683 __func__, sc->errptr);
2686 if (iwn_nic_lock(sc) != 0) {
2687 kprintf("%s: could not read firmware error log\n",
2691 /* Read firmware error log from SRAM. */
2692 iwn_mem_read_region_4(sc, sc->errptr, (uint32_t *)&dump,
2693 sizeof (dump) / sizeof (uint32_t));
2696 if (dump.valid == 0) {
2697 kprintf("%s: firmware error log is empty\n",
2701 kprintf("firmware error log:\n");
2702 kprintf(" error type = \"%s\" (0x%08X)\n",
2703 (dump.id < nitems(iwn_fw_errmsg)) ?
2704 iwn_fw_errmsg[dump.id] : "UNKNOWN",
2706 kprintf(" program counter = 0x%08X\n", dump.pc);
2707 kprintf(" source line = 0x%08X\n", dump.src_line);
2708 kprintf(" error data = 0x%08X%08X\n",
2709 dump.error_data[0], dump.error_data[1]);
2710 kprintf(" branch link = 0x%08X%08X\n",
2711 dump.branch_link[0], dump.branch_link[1]);
2712 kprintf(" interrupt link = 0x%08X%08X\n",
2713 dump.interrupt_link[0], dump.interrupt_link[1]);
2714 kprintf(" time = %u\n", dump.time[0]);
2716 /* Dump driver status (TX and RX rings) while we're here. */
2717 kprintf("driver status:\n");
2718 for (i = 0; i < hal->ntxqs; i++) {
2719 struct iwn_tx_ring *ring = &sc->txq[i];
2720 kprintf(" tx ring %2d: qid=%-2d cur=%-3d queued=%-3d\n",
2721 i, ring->qid, ring->cur, ring->queued);
2723 kprintf(" rx ring: cur=%d\n", sc->rxq.cur);
2729 struct iwn_softc *sc = arg;
2730 struct ifnet *ifp = sc->sc_ifp;
2731 uint32_t r1, r2, tmp;
2735 /* Disable interrupts. */
2736 IWN_WRITE(sc, IWN_INT_MASK, 0);
2738 /* Read interrupts from ICT (fast) or from registers (slow). */
2739 if (sc->sc_flags & IWN_FLAG_USE_ICT) {
2741 while (sc->ict[sc->ict_cur] != 0) {
2742 tmp |= sc->ict[sc->ict_cur];
2743 sc->ict[sc->ict_cur] = 0; /* Acknowledge. */
2744 sc->ict_cur = (sc->ict_cur + 1) % IWN_ICT_COUNT;
2747 if (tmp == 0xffffffff) /* Shouldn't happen. */
2749 else if (tmp & 0xc0000) /* Workaround a HW bug. */
2751 r1 = (tmp & 0xff00) << 16 | (tmp & 0xff);
2752 r2 = 0; /* Unused. */
2754 r1 = IWN_READ(sc, IWN_INT);
2755 if (r1 == 0xffffffff || (r1 & 0xfffffff0) == 0xa5a5a5a0)
2756 return; /* Hardware gone! */
2757 r2 = IWN_READ(sc, IWN_FH_INT);
2760 DPRINTF(sc, IWN_DEBUG_INTR, "interrupt reg1=%x reg2=%x\n", r1, r2);
2762 if (r1 == 0 && r2 == 0)
2763 goto done; /* Interrupt not for us. */
2765 /* Acknowledge interrupts. */
2766 IWN_WRITE(sc, IWN_INT, r1);
2767 if (!(sc->sc_flags & IWN_FLAG_USE_ICT))
2768 IWN_WRITE(sc, IWN_FH_INT, r2);
2770 if (r1 & IWN_INT_RF_TOGGLED) {
2771 iwn_rftoggle_intr(sc);
2774 if (r1 & IWN_INT_CT_REACHED) {
2775 device_printf(sc->sc_dev, "%s: critical temperature reached!\n",
2778 if (r1 & (IWN_INT_SW_ERR | IWN_INT_HW_ERR)) {
2780 ifp->if_flags &= ~IFF_UP;
2781 iwn_stop_locked(sc);
2784 if ((r1 & (IWN_INT_FH_RX | IWN_INT_SW_RX | IWN_INT_RX_PERIODIC)) ||
2785 (r2 & IWN_FH_INT_RX)) {
2786 if (sc->sc_flags & IWN_FLAG_USE_ICT) {
2787 if (r1 & (IWN_INT_FH_RX | IWN_INT_SW_RX))
2788 IWN_WRITE(sc, IWN_FH_INT, IWN_FH_INT_RX);
2789 IWN_WRITE_1(sc, IWN_INT_PERIODIC,
2790 IWN_INT_PERIODIC_DIS);
2792 if (r1 & (IWN_INT_FH_RX | IWN_INT_SW_RX)) {
2793 IWN_WRITE_1(sc, IWN_INT_PERIODIC,
2794 IWN_INT_PERIODIC_ENA);
2800 if ((r1 & IWN_INT_FH_TX) || (r2 & IWN_FH_INT_TX)) {
2801 if (sc->sc_flags & IWN_FLAG_USE_ICT)
2802 IWN_WRITE(sc, IWN_FH_INT, IWN_FH_INT_TX);
2803 wakeup(sc); /* FH DMA transfer completed. */
2806 if (r1 & IWN_INT_ALIVE)
2807 wakeup(sc); /* Firmware is alive. */
2809 if (r1 & IWN_INT_WAKEUP)
2810 iwn_wakeup_intr(sc);
2813 /* Re-enable interrupts. */
2814 if (ifp->if_flags & IFF_UP)
2815 IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask);
2822 * Update TX scheduler ring when transmitting an 802.11 frame (4965AGN and
2823 * 5000 adapters use a slightly different format.)
2826 iwn4965_update_sched(struct iwn_softc *sc, int qid, int idx, uint8_t id,
2829 uint16_t *w = &sc->sched[qid * IWN4965_SCHED_COUNT + idx];
2831 *w = htole16(len + 8);
2832 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map,
2833 BUS_DMASYNC_PREWRITE);
2834 if (idx < IWN_SCHED_WINSZ) {
2835 *(w + IWN_TX_RING_COUNT) = *w;
2836 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map,
2837 BUS_DMASYNC_PREWRITE);
2842 iwn5000_update_sched(struct iwn_softc *sc, int qid, int idx, uint8_t id,
2845 uint16_t *w = &sc->sched[qid * IWN5000_SCHED_COUNT + idx];
2847 *w = htole16(id << 12 | (len + 8));
2849 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map,
2850 BUS_DMASYNC_PREWRITE);
2851 if (idx < IWN_SCHED_WINSZ) {
2852 *(w + IWN_TX_RING_COUNT) = *w;
2853 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map,
2854 BUS_DMASYNC_PREWRITE);
2860 iwn5000_reset_sched(struct iwn_softc *sc, int qid, int idx)
2862 uint16_t *w = &sc->sched[qid * IWN5000_SCHED_COUNT + idx];
2864 *w = (*w & htole16(0xf000)) | htole16(1);
2865 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map,
2866 BUS_DMASYNC_PREWRITE);
2867 if (idx < IWN_SCHED_WINSZ) {
2868 *(w + IWN_TX_RING_COUNT) = *w;
2869 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map,
2870 BUS_DMASYNC_PREWRITE);
2876 iwn_plcp_signal(int rate) {
2879 for (i = 0; i < IWN_RIDX_MAX + 1; i++) {
2880 if (rate == iwn_rates[i].rate)
2888 iwn_tx_data(struct iwn_softc *sc, struct mbuf *m, struct ieee80211_node *ni,
2889 struct iwn_tx_ring *ring)
2891 const struct iwn_hal *hal = sc->sc_hal;
2892 const struct ieee80211_txparam *tp;
2893 const struct iwn_rate *rinfo;
2894 struct ieee80211vap *vap = ni->ni_vap;
2895 struct ieee80211com *ic = ni->ni_ic;
2896 struct iwn_node *wn = (void *)ni;
2897 struct iwn_tx_desc *desc;
2898 struct iwn_tx_data *data;
2899 struct iwn_tx_cmd *cmd;
2900 struct iwn_cmd_data *tx;
2901 struct ieee80211_frame *wh;
2902 struct ieee80211_key *k = NULL;
2904 bus_dma_segment_t segs[IWN_MAX_SCATTER];
2907 int totlen, error, pad, nsegs = 0, i, rate;
2908 uint8_t ridx, type, txant;
2910 IWN_LOCK_ASSERT(sc);
2912 wh = mtod(m, struct ieee80211_frame *);
2913 hdrlen = ieee80211_anyhdrsize(wh);
2914 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
2916 desc = &ring->desc[ring->cur];
2917 data = &ring->data[ring->cur];
2919 /* Choose a TX rate index. */
2920 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)];
2921 if (type == IEEE80211_FC0_TYPE_MGT)
2922 rate = tp->mgmtrate;
2923 else if (IEEE80211_IS_MULTICAST(wh->i_addr1))
2924 rate = tp->mcastrate;
2925 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE)
2926 rate = tp->ucastrate;
2928 /* XXX pass pktlen */
2929 ieee80211_ratectl_rate(ni, NULL, 0);
2931 rate = ni->ni_txrate;
2933 ridx = iwn_plcp_signal(rate);
2934 rinfo = &iwn_rates[ridx];
2936 /* Encrypt the frame if need be. */
2937 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
2938 k = ieee80211_crypto_encap(ni, m);
2943 /* Packet header may have moved, reset our local pointer. */
2944 wh = mtod(m, struct ieee80211_frame *);
2946 totlen = m->m_pkthdr.len;
2948 if (ieee80211_radiotap_active_vap(vap)) {
2949 struct iwn_tx_radiotap_header *tap = &sc->sc_txtap;
2952 tap->wt_rate = rinfo->rate;
2954 tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP;
2956 ieee80211_radiotap_tx(vap, m);
2959 /* Prepare TX firmware command. */
2960 cmd = &ring->cmd[ring->cur];
2961 cmd->code = IWN_CMD_TX_DATA;
2963 cmd->qid = ring->qid;
2964 cmd->idx = ring->cur;
2966 tx = (struct iwn_cmd_data *)cmd->data;
2967 /* NB: No need to clear tx, all fields are reinitialized here. */
2968 tx->scratch = 0; /* clear "scratch" area */
2971 if (!IEEE80211_IS_MULTICAST(wh->i_addr1))
2972 flags |= IWN_TX_NEED_ACK;
2974 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) ==
2975 (IEEE80211_FC0_TYPE_CTL | IEEE80211_FC0_SUBTYPE_BAR))
2976 flags |= IWN_TX_IMM_BA; /* Cannot happen yet. */
2978 if (wh->i_fc[1] & IEEE80211_FC1_MORE_FRAG)
2979 flags |= IWN_TX_MORE_FRAG; /* Cannot happen yet. */
2981 /* Check if frame must be protected using RTS/CTS or CTS-to-self. */
2982 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
2983 /* NB: Group frames are sent using CCK in 802.11b/g. */
2984 if (totlen + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) {
2985 flags |= IWN_TX_NEED_RTS;
2986 } else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
2987 ridx >= IWN_RIDX_OFDM6) {
2988 if (ic->ic_protmode == IEEE80211_PROT_CTSONLY)
2989 flags |= IWN_TX_NEED_CTS;
2990 else if (ic->ic_protmode == IEEE80211_PROT_RTSCTS)
2991 flags |= IWN_TX_NEED_RTS;
2993 if (flags & (IWN_TX_NEED_RTS | IWN_TX_NEED_CTS)) {
2994 if (sc->hw_type != IWN_HW_REV_TYPE_4965) {
2995 /* 5000 autoselects RTS/CTS or CTS-to-self. */
2996 flags &= ~(IWN_TX_NEED_RTS | IWN_TX_NEED_CTS);
2997 flags |= IWN_TX_NEED_PROTECTION;
2999 flags |= IWN_TX_FULL_TXOP;
3003 if (IEEE80211_IS_MULTICAST(wh->i_addr1) ||
3004 type != IEEE80211_FC0_TYPE_DATA)
3005 tx->id = hal->broadcast_id;
3009 if (type == IEEE80211_FC0_TYPE_MGT) {
3010 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
3012 /* Tell HW to set timestamp in probe responses. */
3013 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP)
3014 flags |= IWN_TX_INSERT_TSTAMP;
3016 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ ||
3017 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ)
3018 tx->timeout = htole16(3);
3020 tx->timeout = htole16(2);
3022 tx->timeout = htole16(0);
3025 /* First segment length must be a multiple of 4. */
3026 flags |= IWN_TX_NEED_PADDING;
3027 pad = 4 - (hdrlen & 3);
3031 tx->len = htole16(totlen);
3033 tx->rts_ntries = 60;
3034 tx->data_ntries = 15;
3035 tx->lifetime = htole32(IWN_LIFETIME_INFINITE);
3036 tx->plcp = rinfo->plcp;
3037 tx->rflags = rinfo->flags;
3038 if (tx->id == hal->broadcast_id) {
3039 /* Group or management frame. */
3041 /* XXX Alternate between antenna A and B? */
3042 txant = IWN_LSB(sc->txchainmask);
3043 tx->rflags |= IWN_RFLAG_ANT(txant);
3045 tx->linkq = IWN_RIDX_OFDM54 - ridx;
3046 flags |= IWN_TX_LINKQ; /* enable MRR */
3049 /* Set physical address of "scratch area". */
3050 tx->loaddr = htole32(IWN_LOADDR(data->scratch_paddr));
3051 tx->hiaddr = IWN_HIADDR(data->scratch_paddr);
3053 /* Copy 802.11 header in TX command. */
3054 memcpy((uint8_t *)(tx + 1), wh, hdrlen);
3056 /* Trim 802.11 header. */
3059 tx->flags = htole32(flags);
3062 error = bus_dmamap_load_mbuf_segment(ring->data_dmat, data->map,
3063 m, segs, IWN_MAX_SCATTER - 1, &nsegs, BUS_DMA_NOWAIT);
3064 if (error == EFBIG) {
3065 /* too many fragments, linearize */
3066 mnew = m_defrag(m, MB_DONTWAIT);
3068 device_printf(sc->sc_dev,
3069 "%s: could not defrag mbuf\n", __func__);
3074 error = bus_dmamap_load_mbuf_segment(ring->data_dmat,
3075 data->map, m, segs, IWN_MAX_SCATTER - 1, &nsegs, BUS_DMA_NOWAIT);
3078 device_printf(sc->sc_dev,
3079 "%s: bus_dmamap_load_mbuf_segment failed, error %d\n",
3089 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: qid %d idx %d len %d nsegs %d\n",
3090 __func__, ring->qid, ring->cur, m->m_pkthdr.len, nsegs);
3092 /* Fill TX descriptor. */
3093 desc->nsegs = 1 + nsegs;
3094 /* First DMA segment is used by the TX command. */
3095 desc->segs[0].addr = htole32(IWN_LOADDR(data->cmd_paddr));
3096 desc->segs[0].len = htole16(IWN_HIADDR(data->cmd_paddr) |
3097 (4 + sizeof (*tx) + hdrlen + pad) << 4);
3098 /* Other DMA segments are for data payload. */
3099 for (i = 1; i <= nsegs; i++) {
3100 desc->segs[i].addr = htole32(IWN_LOADDR(segs[i - 1].ds_addr));
3101 desc->segs[i].len = htole16(IWN_HIADDR(segs[i - 1].ds_addr) |
3102 segs[i - 1].ds_len << 4);
3105 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
3106 bus_dmamap_sync(ring->data_dmat, ring->cmd_dma.map,
3107 BUS_DMASYNC_PREWRITE);
3108 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
3109 BUS_DMASYNC_PREWRITE);
3112 /* Update TX scheduler. */
3113 hal->update_sched(sc, ring->qid, ring->cur, tx->id, totlen);
3117 ring->cur = (ring->cur + 1) % IWN_TX_RING_COUNT;
3118 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur);
3120 /* Mark TX ring as full if we reach a certain threshold. */
3121 if (++ring->queued > IWN_TX_RING_HIMARK)
3122 sc->qfullmsk |= 1 << ring->qid;
3128 iwn_tx_data_raw(struct iwn_softc *sc, struct mbuf *m,
3129 struct ieee80211_node *ni, struct iwn_tx_ring *ring,
3130 const struct ieee80211_bpf_params *params)
3132 const struct iwn_hal *hal = sc->sc_hal;
3133 const struct iwn_rate *rinfo;
3134 struct ifnet *ifp = sc->sc_ifp;
3135 struct ieee80211vap *vap = ni->ni_vap;
3136 struct ieee80211com *ic = ifp->if_l2com;
3137 struct iwn_tx_cmd *cmd;
3138 struct iwn_cmd_data *tx;
3139 struct ieee80211_frame *wh;
3140 struct iwn_tx_desc *desc;
3141 struct iwn_tx_data *data;
3144 bus_dma_segment_t segs[IWN_MAX_SCATTER];
3147 int totlen, error, pad, nsegs = 0, i, rate;
3148 uint8_t ridx, type, txant;
3150 IWN_LOCK_ASSERT(sc);
3152 wh = mtod(m, struct ieee80211_frame *);
3153 hdrlen = ieee80211_anyhdrsize(wh);
3154 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
3156 desc = &ring->desc[ring->cur];
3157 data = &ring->data[ring->cur];
3159 /* Choose a TX rate index. */
3160 rate = params->ibp_rate0;
3161 if (!ieee80211_isratevalid(ic->ic_rt, rate)) {
3162 /* XXX fall back to mcast/mgmt rate? */
3166 ridx = iwn_plcp_signal(rate);
3167 rinfo = &iwn_rates[ridx];
3169 totlen = m->m_pkthdr.len;
3171 /* Prepare TX firmware command. */
3172 cmd = &ring->cmd[ring->cur];
3173 cmd->code = IWN_CMD_TX_DATA;
3175 cmd->qid = ring->qid;
3176 cmd->idx = ring->cur;
3178 tx = (struct iwn_cmd_data *)cmd->data;
3179 /* NB: No need to clear tx, all fields are reinitialized here. */
3180 tx->scratch = 0; /* clear "scratch" area */
3183 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
3184 flags |= IWN_TX_NEED_ACK;
3185 if (params->ibp_flags & IEEE80211_BPF_RTS) {
3186 if (sc->hw_type != IWN_HW_REV_TYPE_4965) {
3187 /* 5000 autoselects RTS/CTS or CTS-to-self. */
3188 flags &= ~IWN_TX_NEED_RTS;
3189 flags |= IWN_TX_NEED_PROTECTION;
3191 flags |= IWN_TX_NEED_RTS | IWN_TX_FULL_TXOP;
3193 if (params->ibp_flags & IEEE80211_BPF_CTS) {
3194 if (sc->hw_type != IWN_HW_REV_TYPE_4965) {
3195 /* 5000 autoselects RTS/CTS or CTS-to-self. */
3196 flags &= ~IWN_TX_NEED_CTS;
3197 flags |= IWN_TX_NEED_PROTECTION;
3199 flags |= IWN_TX_NEED_CTS | IWN_TX_FULL_TXOP;
3201 if (type == IEEE80211_FC0_TYPE_MGT) {
3202 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
3204 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP)
3205 flags |= IWN_TX_INSERT_TSTAMP;
3207 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ ||
3208 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ)
3209 tx->timeout = htole16(3);
3211 tx->timeout = htole16(2);
3213 tx->timeout = htole16(0);
3216 /* First segment length must be a multiple of 4. */
3217 flags |= IWN_TX_NEED_PADDING;
3218 pad = 4 - (hdrlen & 3);
3222 if (ieee80211_radiotap_active_vap(vap)) {
3223 struct iwn_tx_radiotap_header *tap = &sc->sc_txtap;
3226 tap->wt_rate = rate;
3228 ieee80211_radiotap_tx(vap, m);
3231 tx->len = htole16(totlen);
3233 tx->id = hal->broadcast_id;
3234 tx->rts_ntries = params->ibp_try1;
3235 tx->data_ntries = params->ibp_try0;
3236 tx->lifetime = htole32(IWN_LIFETIME_INFINITE);
3237 tx->plcp = rinfo->plcp;
3238 tx->rflags = rinfo->flags;
3239 /* Group or management frame. */
3241 txant = IWN_LSB(sc->txchainmask);
3242 tx->rflags |= IWN_RFLAG_ANT(txant);
3243 /* Set physical address of "scratch area". */
3244 paddr = ring->cmd_dma.paddr + ring->cur * sizeof (struct iwn_tx_cmd);
3245 tx->loaddr = htole32(IWN_LOADDR(paddr));
3246 tx->hiaddr = IWN_HIADDR(paddr);
3248 /* Copy 802.11 header in TX command. */
3249 memcpy((uint8_t *)(tx + 1), wh, hdrlen);
3251 /* Trim 802.11 header. */
3254 tx->flags = htole32(flags);
3257 error = bus_dmamap_load_mbuf_segment(ring->data_dmat, data->map,
3258 m, segs, IWN_MAX_SCATTER - 1, &nsegs, BUS_DMA_NOWAIT);
3259 if (error == EFBIG) {
3260 /* Too many fragments, linearize. */
3261 mnew = m_defrag(m, MB_DONTWAIT);
3263 device_printf(sc->sc_dev,
3264 "%s: could not defrag mbuf\n", __func__);
3269 error = bus_dmamap_load_mbuf_segment(ring->data_dmat,
3270 data->map, m, segs, IWN_MAX_SCATTER - 1, &nsegs, BUS_DMA_NOWAIT);
3273 device_printf(sc->sc_dev,
3274 "%s: bus_dmamap_load_mbuf_segment failed, error %d\n",
3284 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: qid %d idx %d len %d nsegs %d\n",
3285 __func__, ring->qid, ring->cur, m->m_pkthdr.len, nsegs);
3287 /* Fill TX descriptor. */
3288 desc->nsegs = 1 + nsegs;
3289 /* First DMA segment is used by the TX command. */
3290 desc->segs[0].addr = htole32(IWN_LOADDR(data->cmd_paddr));
3291 desc->segs[0].len = htole16(IWN_HIADDR(data->cmd_paddr) |
3292 (4 + sizeof (*tx) + hdrlen + pad) << 4);
3293 /* Other DMA segments are for data payload. */
3294 for (i = 1; i <= nsegs; i++) {
3295 desc->segs[i].addr = htole32(IWN_LOADDR(segs[i - 1].ds_addr));
3296 desc->segs[i].len = htole16(IWN_HIADDR(segs[i - 1].ds_addr) |
3297 segs[i - 1].ds_len << 4);
3300 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
3301 bus_dmamap_sync(ring->data_dmat, ring->cmd_dma.map,
3302 BUS_DMASYNC_PREWRITE);
3303 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
3304 BUS_DMASYNC_PREWRITE);
3307 /* Update TX scheduler. */
3308 hal->update_sched(sc, ring->qid, ring->cur, tx->id, totlen);
3312 ring->cur = (ring->cur + 1) % IWN_TX_RING_COUNT;
3313 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur);
3315 /* Mark TX ring as full if we reach a certain threshold. */
3316 if (++ring->queued > IWN_TX_RING_HIMARK)
3317 sc->qfullmsk |= 1 << ring->qid;
3323 iwn_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
3324 const struct ieee80211_bpf_params *params)
3326 struct ieee80211com *ic = ni->ni_ic;
3327 struct ifnet *ifp = ic->ic_ifp;
3328 struct iwn_softc *sc = ifp->if_softc;
3329 struct iwn_tx_ring *txq;
3332 if ((ifp->if_flags & IFF_RUNNING) == 0) {
3333 ieee80211_free_node(ni);
3340 txq = &sc->txq[M_WME_GETAC(m)];
3342 txq = &sc->txq[params->ibp_pri & 3];
3344 if (params == NULL) {
3346 * Legacy path; interpret frame contents to decide
3347 * precisely how to send the frame.
3349 error = iwn_tx_data(sc, m, ni, txq);
3352 * Caller supplied explicit parameters to use in
3353 * sending the frame.
3355 error = iwn_tx_data_raw(sc, m, ni, txq, params);
3358 /* NB: m is reclaimed on tx failure */
3359 ieee80211_free_node(ni);
3367 iwn_start(struct ifnet *ifp)
3369 struct iwn_softc *sc = ifp->if_softc;
3372 iwn_start_locked(ifp);
3377 iwn_start_locked(struct ifnet *ifp)
3379 struct iwn_softc *sc = ifp->if_softc;
3380 struct ieee80211_node *ni;
3381 struct iwn_tx_ring *txq;
3385 IWN_LOCK_ASSERT(sc);
3388 if (sc->qfullmsk != 0) {
3389 ifp->if_flags |= IFF_OACTIVE;
3392 m = ifq_dequeue(&ifp->if_snd, NULL);
3395 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
3396 pri = M_WME_GETAC(m);
3397 txq = &sc->txq[pri];
3398 if (iwn_tx_data(sc, m, ni, txq) != 0) {
3400 ieee80211_free_node(ni);
3403 sc->sc_tx_timer = 5;
3408 iwn_watchdog(struct iwn_softc *sc)
3410 if (sc->sc_tx_timer > 0 && --sc->sc_tx_timer == 0) {
3411 struct ifnet *ifp = sc->sc_ifp;
3412 struct ieee80211com *ic = ifp->if_l2com;
3414 if_printf(ifp, "device timeout\n");
3415 ieee80211_runtask(ic, &sc->sc_reinit_task);
3420 iwn_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *ucred)
3422 struct iwn_softc *sc = ifp->if_softc;
3423 struct ieee80211com *ic = ifp->if_l2com;
3424 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3425 struct ifreq *ifr = (struct ifreq *) data;
3426 int error = 0, startall = 0, stop = 0;
3431 if (ifp->if_flags & IFF_UP) {
3432 if (!(ifp->if_flags & IFF_RUNNING)) {
3433 iwn_init_locked(sc);
3434 if (IWN_READ(sc, IWN_GP_CNTRL) & IWN_GP_CNTRL_RFKILL)
3440 if (ifp->if_flags & IFF_RUNNING)
3441 iwn_stop_locked(sc);
3445 ieee80211_start_all(ic);
3446 else if (vap != NULL && stop)
3447 ieee80211_stop(vap);
3450 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
3453 error = ether_ioctl(ifp, cmd, data);
3463 * Send a command to the firmware.
3466 iwn_cmd(struct iwn_softc *sc, int code, const void *buf, int size, int async)
3468 struct iwn_tx_ring *ring = &sc->txq[4];
3469 struct iwn_tx_desc *desc;
3470 struct iwn_tx_data *data;
3471 struct iwn_tx_cmd *cmd;
3476 IWN_LOCK_ASSERT(sc);
3478 desc = &ring->desc[ring->cur];
3479 data = &ring->data[ring->cur];
3482 if (size > sizeof cmd->data) {
3483 /* Command is too large to fit in a descriptor. */
3484 if (totlen > MCLBYTES)
3486 m = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
3489 cmd = mtod(m, struct iwn_tx_cmd *);
3490 error = bus_dmamap_load(ring->data_dmat, data->map, cmd,
3491 totlen, iwn_dma_map_addr, &paddr, BUS_DMA_NOWAIT);
3498 cmd = &ring->cmd[ring->cur];
3499 paddr = data->cmd_paddr;
3504 cmd->qid = ring->qid;
3505 cmd->idx = ring->cur;
3506 memcpy(cmd->data, buf, size);
3509 desc->segs[0].addr = htole32(IWN_LOADDR(paddr));
3510 desc->segs[0].len = htole16(IWN_HIADDR(paddr) | totlen << 4);
3512 DPRINTF(sc, IWN_DEBUG_CMD, "%s: %s (0x%x) flags %d qid %d idx %d\n",
3513 __func__, iwn_intr_str(cmd->code), cmd->code,
3514 cmd->flags, cmd->qid, cmd->idx);
3516 if (size > sizeof cmd->data) {
3517 bus_dmamap_sync(ring->data_dmat, data->map,
3518 BUS_DMASYNC_PREWRITE);
3520 bus_dmamap_sync(ring->data_dmat, ring->cmd_dma.map,
3521 BUS_DMASYNC_PREWRITE);
3523 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
3524 BUS_DMASYNC_PREWRITE);
3527 /* Update TX scheduler. */
3528 sc->sc_hal->update_sched(sc, ring->qid, ring->cur, 0, 0);
3531 /* Kick command ring. */
3532 ring->cur = (ring->cur + 1) % IWN_TX_RING_COUNT;
3533 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur);
3535 return async ? 0 : tsleep(desc, 0, "iwncmd", hz);
3539 iwn4965_add_node(struct iwn_softc *sc, struct iwn_node_info *node, int async)
3541 struct iwn4965_node_info hnode;
3545 * We use the node structure for 5000 Series internally (it is
3546 * a superset of the one for 4965AGN). We thus copy the common
3547 * fields before sending the command.
3549 src = (caddr_t)node;
3550 dst = (caddr_t)&hnode;
3551 memcpy(dst, src, 48);
3552 /* Skip TSC, RX MIC and TX MIC fields from ``src''. */
3553 memcpy(dst + 48, src + 72, 20);
3554 return iwn_cmd(sc, IWN_CMD_ADD_NODE, &hnode, sizeof hnode, async);
3558 iwn5000_add_node(struct iwn_softc *sc, struct iwn_node_info *node, int async)
3560 /* Direct mapping. */
3561 return iwn_cmd(sc, IWN_CMD_ADD_NODE, node, sizeof (*node), async);
3565 static const uint8_t iwn_ridx_to_plcp[] = {
3566 10, 20, 55, 110, /* CCK */
3567 0xd, 0xf, 0x5, 0x7, 0x9, 0xb, 0x1, 0x3, 0x3 /* OFDM R1-R4 */
3569 static const uint8_t iwn_siso_mcs_to_plcp[] = {
3570 0, 0, 0, 0, /* CCK */
3571 0, 0, 1, 2, 3, 4, 5, 6, 7 /* HT */
3573 static const uint8_t iwn_mimo_mcs_to_plcp[] = {
3574 0, 0, 0, 0, /* CCK */
3575 8, 8, 9, 10, 11, 12, 13, 14, 15 /* HT */
3578 static const uint8_t iwn_prev_ridx[] = {
3579 /* NB: allow fallback from CCK11 to OFDM9 and from OFDM6 to CCK5 */
3580 0, 0, 1, 5, /* CCK */
3581 2, 4, 3, 6, 7, 8, 9, 10, 10 /* OFDM */
3585 * Configure hardware link parameters for the specified
3586 * node operating on the specified channel.
3589 iwn_set_link_quality(struct iwn_softc *sc, uint8_t id, int async)
3591 struct ifnet *ifp = sc->sc_ifp;
3592 struct ieee80211com *ic = ifp->if_l2com;
3593 struct iwn_cmd_link_quality linkq;
3594 const struct iwn_rate *rinfo;
3596 uint8_t txant, ridx;
3598 /* Use the first valid TX antenna. */
3599 txant = IWN_LSB(sc->txchainmask);
3601 memset(&linkq, 0, sizeof linkq);
3603 linkq.antmsk_1stream = txant;
3604 linkq.antmsk_2stream = IWN_ANT_AB;
3605 linkq.ampdu_max = 31;
3606 linkq.ampdu_threshold = 3;
3607 linkq.ampdu_limit = htole16(4000); /* 4ms */
3610 if (IEEE80211_IS_CHAN_HT(c))
3614 if (id == IWN_ID_BSS)
3615 ridx = IWN_RIDX_OFDM54;
3616 else if (IEEE80211_IS_CHAN_A(ic->ic_curchan))
3617 ridx = IWN_RIDX_OFDM6;
3619 ridx = IWN_RIDX_CCK1;
3621 for (i = 0; i < IWN_MAX_TX_RETRIES; i++) {
3622 rinfo = &iwn_rates[ridx];
3624 if (IEEE80211_IS_CHAN_HT40(c)) {
3625 linkq.retry[i].plcp = iwn_mimo_mcs_to_plcp[ridx]
3627 linkq.retry[i].rflags = IWN_RFLAG_HT
3630 } else if (IEEE80211_IS_CHAN_HT(c)) {
3631 linkq.retry[i].plcp = iwn_siso_mcs_to_plcp[ridx]
3633 linkq.retry[i].rflags = IWN_RFLAG_HT;
3638 linkq.retry[i].plcp = rinfo->plcp;
3639 linkq.retry[i].rflags = rinfo->flags;
3641 linkq.retry[i].rflags |= IWN_RFLAG_ANT(txant);
3642 ridx = iwn_prev_ridx[ridx];
3645 if (sc->sc_debug & IWN_DEBUG_STATE) {
3646 kprintf("%s: set link quality for node %d, mimo %d ssmask %d\n",
3647 __func__, id, linkq.mimo, linkq.antmsk_1stream);
3648 kprintf("%s:", __func__);
3649 for (i = 0; i < IWN_MAX_TX_RETRIES; i++)
3650 kprintf(" %d:%x", linkq.retry[i].plcp,
3651 linkq.retry[i].rflags);
3655 return iwn_cmd(sc, IWN_CMD_LINK_QUALITY, &linkq, sizeof linkq, async);
3659 * Broadcast node is used to send group-addressed and management frames.
3662 iwn_add_broadcast_node(struct iwn_softc *sc, int async)
3664 const struct iwn_hal *hal = sc->sc_hal;
3665 struct ifnet *ifp = sc->sc_ifp;
3666 struct iwn_node_info node;
3669 memset(&node, 0, sizeof node);
3670 IEEE80211_ADDR_COPY(node.macaddr, ifp->if_broadcastaddr);
3671 node.id = hal->broadcast_id;
3672 DPRINTF(sc, IWN_DEBUG_RESET, "%s: adding broadcast node\n", __func__);
3673 error = hal->add_node(sc, &node, async);
3677 error = iwn_set_link_quality(sc, hal->broadcast_id, async);
3682 iwn_wme_update(struct ieee80211com *ic)
3684 #define IWN_EXP2(x) ((1 << (x)) - 1) /* CWmin = 2^ECWmin - 1 */
3685 #define IWN_TXOP_TO_US(v) (v<<5)
3686 struct iwn_softc *sc = ic->ic_ifp->if_softc;
3687 struct iwn_edca_params cmd;
3690 memset(&cmd, 0, sizeof cmd);
3691 cmd.flags = htole32(IWN_EDCA_UPDATE);
3692 for (i = 0; i < WME_NUM_AC; i++) {
3693 const struct wmeParams *wmep =
3694 &ic->ic_wme.wme_chanParams.cap_wmeParams[i];
3695 cmd.ac[i].aifsn = wmep->wmep_aifsn;
3696 cmd.ac[i].cwmin = htole16(IWN_EXP2(wmep->wmep_logcwmin));
3697 cmd.ac[i].cwmax = htole16(IWN_EXP2(wmep->wmep_logcwmax));
3698 cmd.ac[i].txoplimit =
3699 htole16(IWN_TXOP_TO_US(wmep->wmep_txopLimit));
3701 IEEE80211_UNLOCK(ic);
3703 (void) iwn_cmd(sc, IWN_CMD_EDCA_PARAMS, &cmd, sizeof cmd, 1 /*async*/);
3707 #undef IWN_TXOP_TO_US
3712 iwn_update_mcast(struct ifnet *ifp)
3718 iwn_set_led(struct iwn_softc *sc, uint8_t which, uint8_t off, uint8_t on)
3720 struct iwn_cmd_led led;
3722 /* Clear microcode LED ownership. */
3723 IWN_CLRBITS(sc, IWN_LED, IWN_LED_BSM_CTRL);
3726 led.unit = htole32(10000); /* on/off in unit of 100ms */
3729 (void)iwn_cmd(sc, IWN_CMD_SET_LED, &led, sizeof led, 1);
3733 * Set the critical temperature at which the firmware will stop the radio
3737 iwn_set_critical_temp(struct iwn_softc *sc)
3739 struct iwn_critical_temp crit;
3742 IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_CTEMP_STOP_RF);
3744 if (sc->hw_type == IWN_HW_REV_TYPE_5150)
3745 temp = (IWN_CTOK(110) - sc->temp_off) * -5;
3746 else if (sc->hw_type == IWN_HW_REV_TYPE_4965)
3747 temp = IWN_CTOK(110);
3750 memset(&crit, 0, sizeof crit);
3751 crit.tempR = htole32(temp);
3752 DPRINTF(sc, IWN_DEBUG_RESET, "setting critical temp to %d\n",
3754 return iwn_cmd(sc, IWN_CMD_SET_CRITICAL_TEMP, &crit, sizeof crit, 0);
3758 iwn_set_timing(struct iwn_softc *sc, struct ieee80211_node *ni)
3760 struct iwn_cmd_timing cmd;
3763 memset(&cmd, 0, sizeof cmd);
3764 memcpy(&cmd.tstamp, ni->ni_tstamp.data, sizeof (uint64_t));
3765 cmd.bintval = htole16(ni->ni_intval);
3766 cmd.lintval = htole16(10);
3768 /* Compute remaining time until next beacon. */
3769 val = (uint64_t)ni->ni_intval * 1024; /* msecs -> usecs */
3770 mod = le64toh(cmd.tstamp) % val;
3771 cmd.binitval = htole32((uint32_t)(val - mod));
3773 DPRINTF(sc, IWN_DEBUG_RESET, "timing bintval=%u tstamp=%ju, init=%u\n",
3774 ni->ni_intval, le64toh(cmd.tstamp), (uint32_t)(val - mod));
3776 return iwn_cmd(sc, IWN_CMD_TIMING, &cmd, sizeof cmd, 1);
3780 iwn4965_power_calibration(struct iwn_softc *sc, int temp)
3782 struct ifnet *ifp = sc->sc_ifp;
3783 struct ieee80211com *ic = ifp->if_l2com;
3785 /* Adjust TX power if need be (delta >= 3 degC.) */
3786 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: temperature %d->%d\n",
3787 __func__, sc->temp, temp);
3788 if (abs(temp - sc->temp) >= 3) {
3789 /* Record temperature of last calibration. */
3791 (void)iwn4965_set_txpower(sc, ic->ic_bsschan, 1);
3796 * Set TX power for current channel (each rate has its own power settings).
3797 * This function takes into account the regulatory information from EEPROM,
3798 * the current temperature and the current voltage.
3801 iwn4965_set_txpower(struct iwn_softc *sc, struct ieee80211_channel *ch,
3804 /* Fixed-point arithmetic division using a n-bit fractional part. */
3805 #define fdivround(a, b, n) \
3806 ((((1 << n) * (a)) / (b) + (1 << n) / 2) / (1 << n))
3807 /* Linear interpolation. */
3808 #define interpolate(x, x1, y1, x2, y2, n) \
3809 ((y1) + fdivround(((int)(x) - (x1)) * ((y2) - (y1)), (x2) - (x1), n))
3811 static const int tdiv[IWN_NATTEN_GROUPS] = { 9, 8, 8, 8, 6 };
3812 struct ifnet *ifp = sc->sc_ifp;
3813 struct ieee80211com *ic = ifp->if_l2com;
3814 struct iwn_ucode_info *uc = &sc->ucode_info;
3815 struct iwn4965_cmd_txpower cmd;
3816 struct iwn4965_eeprom_chan_samples *chans;
3817 int32_t vdiff, tdiff;
3818 int i, c, grp, maxpwr;
3819 const uint8_t *rf_gain, *dsp_gain;
3822 /* Retrieve channel number. */
3823 chan = ieee80211_chan2ieee(ic, ch);
3824 DPRINTF(sc, IWN_DEBUG_RESET, "setting TX power for channel %d\n",
3827 memset(&cmd, 0, sizeof cmd);
3828 cmd.band = IEEE80211_IS_CHAN_5GHZ(ch) ? 0 : 1;
3831 if (IEEE80211_IS_CHAN_5GHZ(ch)) {
3832 maxpwr = sc->maxpwr5GHz;
3833 rf_gain = iwn4965_rf_gain_5ghz;
3834 dsp_gain = iwn4965_dsp_gain_5ghz;
3836 maxpwr = sc->maxpwr2GHz;
3837 rf_gain = iwn4965_rf_gain_2ghz;
3838 dsp_gain = iwn4965_dsp_gain_2ghz;
3841 /* Compute voltage compensation. */
3842 vdiff = ((int32_t)le32toh(uc->volt) - sc->eeprom_voltage) / 7;
3847 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW,
3848 "%s: voltage compensation=%d (UCODE=%d, EEPROM=%d)\n",
3849 __func__, vdiff, le32toh(uc->volt), sc->eeprom_voltage);
3851 /* Get channel attenuation group. */
3852 if (chan <= 20) /* 1-20 */
3854 else if (chan <= 43) /* 34-43 */
3856 else if (chan <= 70) /* 44-70 */
3858 else if (chan <= 124) /* 71-124 */
3862 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW,
3863 "%s: chan %d, attenuation group=%d\n", __func__, chan, grp);
3865 /* Get channel sub-band. */
3866 for (i = 0; i < IWN_NBANDS; i++)
3867 if (sc->bands[i].lo != 0 &&
3868 sc->bands[i].lo <= chan && chan <= sc->bands[i].hi)
3870 if (i == IWN_NBANDS) /* Can't happen in real-life. */
3872 chans = sc->bands[i].chans;
3873 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW,
3874 "%s: chan %d sub-band=%d\n", __func__, chan, i);
3876 for (c = 0; c < 2; c++) {
3877 uint8_t power, gain, temp;
3878 int maxchpwr, pwr, ridx, idx;
3880 power = interpolate(chan,
3881 chans[0].num, chans[0].samples[c][1].power,
3882 chans[1].num, chans[1].samples[c][1].power, 1);
3883 gain = interpolate(chan,
3884 chans[0].num, chans[0].samples[c][1].gain,
3885 chans[1].num, chans[1].samples[c][1].gain, 1);
3886 temp = interpolate(chan,
3887 chans[0].num, chans[0].samples[c][1].temp,
3888 chans[1].num, chans[1].samples[c][1].temp, 1);
3889 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW,
3890 "%s: Tx chain %d: power=%d gain=%d temp=%d\n",
3891 __func__, c, power, gain, temp);
3893 /* Compute temperature compensation. */
3894 tdiff = ((sc->temp - temp) * 2) / tdiv[grp];
3895 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW,
3896 "%s: temperature compensation=%d (current=%d, EEPROM=%d)\n",
3897 __func__, tdiff, sc->temp, temp);
3899 for (ridx = 0; ridx <= IWN_RIDX_MAX; ridx++) {
3900 /* Convert dBm to half-dBm. */
3901 maxchpwr = sc->maxpwr[chan] * 2;
3903 maxchpwr -= 6; /* MIMO 2T: -3dB */
3907 /* Adjust TX power based on rate. */
3908 if ((ridx % 8) == 5)
3909 pwr -= 15; /* OFDM48: -7.5dB */
3910 else if ((ridx % 8) == 6)
3911 pwr -= 17; /* OFDM54: -8.5dB */
3912 else if ((ridx % 8) == 7)
3913 pwr -= 20; /* OFDM60: -10dB */
3915 pwr -= 10; /* Others: -5dB */
3917 /* Do not exceed channel max TX power. */
3921 idx = gain - (pwr - power) - tdiff - vdiff;
3922 if ((ridx / 8) & 1) /* MIMO */
3923 idx += (int32_t)le32toh(uc->atten[grp][c]);
3926 idx += 9; /* 5GHz */
3927 if (ridx == IWN_RIDX_MAX)
3930 /* Make sure idx stays in a valid range. */
3933 else if (idx > IWN4965_MAX_PWR_INDEX)
3934 idx = IWN4965_MAX_PWR_INDEX;
3936 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW,
3937 "%s: Tx chain %d, rate idx %d: power=%d\n",
3938 __func__, c, ridx, idx);
3939 cmd.power[ridx].rf_gain[c] = rf_gain[idx];
3940 cmd.power[ridx].dsp_gain[c] = dsp_gain[idx];
3944 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW,
3945 "%s: set tx power for chan %d\n", __func__, chan);
3946 return iwn_cmd(sc, IWN_CMD_TXPOWER, &cmd, sizeof cmd, async);
3953 iwn5000_set_txpower(struct iwn_softc *sc, struct ieee80211_channel *ch,
3956 struct iwn5000_cmd_txpower cmd;
3959 * TX power calibration is handled automatically by the firmware
3962 memset(&cmd, 0, sizeof cmd);
3963 cmd.global_limit = 2 * IWN5000_TXPOWER_MAX_DBM; /* 16 dBm */
3964 cmd.flags = IWN5000_TXPOWER_NO_CLOSED;
3965 cmd.srv_limit = IWN5000_TXPOWER_AUTO;
3966 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: setting TX power\n", __func__);
3967 return iwn_cmd(sc, IWN_CMD_TXPOWER_DBM, &cmd, sizeof cmd, async);
3971 * Retrieve the maximum RSSI (in dBm) among receivers.
3974 iwn4965_get_rssi(struct iwn_softc *sc, struct iwn_rx_stat *stat)
3976 struct iwn4965_rx_phystat *phy = (void *)stat->phybuf;
3980 mask = (le16toh(phy->antenna) >> 4) & IWN_ANT_ABC;
3981 agc = (le16toh(phy->agc) >> 7) & 0x7f;
3985 if (mask & IWN_ANT_A) /* Ant A */
3986 rssi = max(rssi, phy->rssi[0]);
3987 if (mask & IWN_ATH_B) /* Ant B */
3988 rssi = max(rssi, phy->rssi[2]);
3989 if (mask & IWN_ANT_C) /* Ant C */
3990 rssi = max(rssi, phy->rssi[4]);
3992 rssi = max(rssi, phy->rssi[0]);
3993 rssi = max(rssi, phy->rssi[2]);
3994 rssi = max(rssi, phy->rssi[4]);
3997 DPRINTF(sc, IWN_DEBUG_RECV, "%s: agc %d mask 0x%x rssi %d %d %d "
3998 "result %d\n", __func__, agc, mask,
3999 phy->rssi[0], phy->rssi[2], phy->rssi[4],
4000 rssi - agc - IWN_RSSI_TO_DBM);
4001 return rssi - agc - IWN_RSSI_TO_DBM;
4005 iwn5000_get_rssi(struct iwn_softc *sc, struct iwn_rx_stat *stat)
4007 struct iwn5000_rx_phystat *phy = (void *)stat->phybuf;
4011 agc = (le32toh(phy->agc) >> 9) & 0x7f;
4013 rssi = MAX(le16toh(phy->rssi[0]) & 0xff,
4014 le16toh(phy->rssi[1]) & 0xff);
4015 rssi = MAX(le16toh(phy->rssi[2]) & 0xff, rssi);
4017 DPRINTF(sc, IWN_DEBUG_RECV, "%s: agc %d rssi %d %d %d "
4018 "result %d\n", __func__, agc,
4019 phy->rssi[0], phy->rssi[1], phy->rssi[2],
4020 rssi - agc - IWN_RSSI_TO_DBM);
4021 return rssi - agc - IWN_RSSI_TO_DBM;
4025 * Retrieve the average noise (in dBm) among receivers.
4028 iwn_get_noise(const struct iwn_rx_general_stats *stats)
4030 int i, total, nbant, noise;
4033 for (i = 0; i < 3; i++) {
4034 if ((noise = le32toh(stats->noise[i]) & 0xff) == 0)
4039 /* There should be at least one antenna but check anyway. */
4040 return (nbant == 0) ? -127 : (total / nbant) - 107;
4044 * Compute temperature (in degC) from last received statistics.
4047 iwn4965_get_temperature(struct iwn_softc *sc)
4049 struct iwn_ucode_info *uc = &sc->ucode_info;
4050 int32_t r1, r2, r3, r4, temp;
4052 r1 = le32toh(uc->temp[0].chan20MHz);
4053 r2 = le32toh(uc->temp[1].chan20MHz);
4054 r3 = le32toh(uc->temp[2].chan20MHz);
4055 r4 = le32toh(sc->rawtemp);
4057 if (r1 == r3) /* Prevents division by 0 (should not happen.) */
4060 /* Sign-extend 23-bit R4 value to 32-bit. */
4061 r4 = (r4 << 8) >> 8;
4062 /* Compute temperature in Kelvin. */
4063 temp = (259 * (r4 - r2)) / (r3 - r1);
4064 temp = (temp * 97) / 100 + 8;
4066 DPRINTF(sc, IWN_DEBUG_ANY, "temperature %dK/%dC\n", temp,
4068 return IWN_KTOC(temp);
4072 iwn5000_get_temperature(struct iwn_softc *sc)
4077 * Temperature is not used by the driver for 5000 Series because
4078 * TX power calibration is handled by firmware. We export it to
4079 * users through the sensor framework though.
4081 temp = le32toh(sc->rawtemp);
4082 if (sc->hw_type == IWN_HW_REV_TYPE_5150) {
4083 temp = (temp / -5) + sc->temp_off;
4084 temp = IWN_KTOC(temp);
4090 * Initialize sensitivity calibration state machine.
4093 iwn_init_sensitivity(struct iwn_softc *sc)
4095 const struct iwn_hal *hal = sc->sc_hal;
4096 struct iwn_calib_state *calib = &sc->calib;
4100 /* Reset calibration state machine. */
4101 memset(calib, 0, sizeof (*calib));
4102 calib->state = IWN_CALIB_STATE_INIT;
4103 calib->cck_state = IWN_CCK_STATE_HIFA;
4104 /* Set initial correlation values. */
4105 calib->ofdm_x1 = sc->limits->min_ofdm_x1;
4106 calib->ofdm_mrc_x1 = sc->limits->min_ofdm_mrc_x1;
4107 calib->ofdm_x4 = sc->limits->min_ofdm_x4;
4108 calib->ofdm_mrc_x4 = sc->limits->min_ofdm_mrc_x4;
4109 calib->cck_x4 = 125;
4110 calib->cck_mrc_x4 = sc->limits->min_cck_mrc_x4;
4111 calib->energy_cck = sc->limits->energy_cck;
4113 /* Write initial sensitivity. */
4114 error = iwn_send_sensitivity(sc);
4118 /* Write initial gains. */
4119 error = hal->init_gains(sc);
4123 /* Request statistics at each beacon interval. */
4125 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: calibrate phy\n", __func__);
4126 return iwn_cmd(sc, IWN_CMD_GET_STATISTICS, &flags, sizeof flags, 1);
4130 * Collect noise and RSSI statistics for the first 20 beacons received
4131 * after association and use them to determine connected antennas and
4132 * to set differential gains.
4135 iwn_collect_noise(struct iwn_softc *sc,
4136 const struct iwn_rx_general_stats *stats)
4138 const struct iwn_hal *hal = sc->sc_hal;
4139 struct iwn_calib_state *calib = &sc->calib;
4143 /* Accumulate RSSI and noise for all 3 antennas. */
4144 for (i = 0; i < 3; i++) {
4145 calib->rssi[i] += le32toh(stats->rssi[i]) & 0xff;
4146 calib->noise[i] += le32toh(stats->noise[i]) & 0xff;
4148 /* NB: We update differential gains only once after 20 beacons. */
4149 if (++calib->nbeacons < 20)
4152 /* Determine highest average RSSI. */
4153 val = MAX(calib->rssi[0], calib->rssi[1]);
4154 val = MAX(calib->rssi[2], val);
4156 /* Determine which antennas are connected. */
4157 sc->chainmask = sc->rxchainmask;
4158 for (i = 0; i < 3; i++)
4159 if (val - calib->rssi[i] > 15 * 20)
4160 sc->chainmask &= ~(1 << i);
4162 /* If none of the TX antennas are connected, keep at least one. */
4163 if ((sc->chainmask & sc->txchainmask) == 0)
4164 sc->chainmask |= IWN_LSB(sc->txchainmask);
4166 (void)hal->set_gains(sc);
4167 calib->state = IWN_CALIB_STATE_RUN;
4170 /* XXX Disable RX chains with no antennas connected. */
4171 sc->rxon.rxchain = htole16(IWN_RXCHAIN_SEL(sc->chainmask));
4172 (void)iwn_cmd(sc, IWN_CMD_RXON, &sc->rxon, hal->rxonsz, 1);
4177 /* Enable power-saving mode if requested by user. */
4178 if (sc->sc_ic.ic_flags & IEEE80211_F_PMGTON)
4179 (void)iwn_set_pslevel(sc, 0, 3, 1);
4184 iwn4965_init_gains(struct iwn_softc *sc)
4186 struct iwn_phy_calib_gain cmd;
4188 memset(&cmd, 0, sizeof cmd);
4189 cmd.code = IWN4965_PHY_CALIB_DIFF_GAIN;
4190 /* Differential gains initially set to 0 for all 3 antennas. */
4191 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
4192 "%s: setting initial differential gains\n", __func__);
4193 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1);
4197 iwn5000_init_gains(struct iwn_softc *sc)
4199 struct iwn_phy_calib cmd;
4201 memset(&cmd, 0, sizeof cmd);
4202 cmd.code = IWN5000_PHY_CALIB_RESET_NOISE_GAIN;
4205 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
4206 "%s: setting initial differential gains\n", __func__);
4207 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1);
4211 iwn4965_set_gains(struct iwn_softc *sc)
4213 struct iwn_calib_state *calib = &sc->calib;
4214 struct iwn_phy_calib_gain cmd;
4215 int i, delta, noise;
4217 /* Get minimal noise among connected antennas. */
4218 noise = INT_MAX; /* NB: There's at least one antenna. */
4219 for (i = 0; i < 3; i++)
4220 if (sc->chainmask & (1 << i))
4221 noise = MIN(calib->noise[i], noise);
4223 memset(&cmd, 0, sizeof cmd);
4224 cmd.code = IWN4965_PHY_CALIB_DIFF_GAIN;
4225 /* Set differential gains for connected antennas. */
4226 for (i = 0; i < 3; i++) {
4227 if (sc->chainmask & (1 << i)) {
4228 /* Compute attenuation (in unit of 1.5dB). */
4229 delta = (noise - (int32_t)calib->noise[i]) / 30;
4230 /* NB: delta <= 0 */
4231 /* Limit to [-4.5dB,0]. */
4232 cmd.gain[i] = MIN(abs(delta), 3);
4234 cmd.gain[i] |= 1 << 2; /* sign bit */
4237 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
4238 "setting differential gains Ant A/B/C: %x/%x/%x (%x)\n",
4239 cmd.gain[0], cmd.gain[1], cmd.gain[2], sc->chainmask);
4240 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1);
4244 iwn5000_set_gains(struct iwn_softc *sc)
4246 struct iwn_calib_state *calib = &sc->calib;
4247 struct iwn_phy_calib_gain cmd;
4248 int i, ant, delta, div;
4250 /* We collected 20 beacons and !=6050 need a 1.5 factor. */
4251 div = (sc->hw_type == IWN_HW_REV_TYPE_6050) ? 20 : 30;
4253 memset(&cmd, 0, sizeof cmd);
4254 cmd.code = IWN5000_PHY_CALIB_NOISE_GAIN;
4257 /* Get first available RX antenna as referential. */
4258 ant = IWN_LSB(sc->rxchainmask);
4259 /* Set differential gains for other antennas. */
4260 for (i = ant + 1; i < 3; i++) {
4261 if (sc->chainmask & (1 << i)) {
4262 /* The delta is relative to antenna "ant". */
4263 delta = ((int32_t)calib->noise[ant] -
4264 (int32_t)calib->noise[i]) / div;
4265 /* Limit to [-4.5dB,+4.5dB]. */
4266 cmd.gain[i - 1] = MIN(abs(delta), 3);
4268 cmd.gain[i - 1] |= 1 << 2; /* sign bit */
4271 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
4272 "setting differential gains Ant B/C: %x/%x (%x)\n",
4273 cmd.gain[0], cmd.gain[1], sc->chainmask);
4274 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1);
4278 * Tune RF RX sensitivity based on the number of false alarms detected
4279 * during the last beacon period.
4282 iwn_tune_sensitivity(struct iwn_softc *sc, const struct iwn_rx_stats *stats)
4284 #define inc(val, inc, max) \
4285 if ((val) < (max)) { \
4286 if ((val) < (max) - (inc)) \
4292 #define dec(val, dec, min) \
4293 if ((val) > (min)) { \
4294 if ((val) > (min) + (dec)) \
4301 const struct iwn_sensitivity_limits *limits = sc->limits;
4302 struct iwn_calib_state *calib = &sc->calib;
4303 uint32_t val, rxena, fa;
4304 uint32_t energy[3], energy_min;
4305 uint8_t noise[3], noise_ref;
4306 int i, needs_update = 0;
4308 /* Check that we've been enabled long enough. */
4309 rxena = le32toh(stats->general.load);
4313 /* Compute number of false alarms since last call for OFDM. */
4314 fa = le32toh(stats->ofdm.bad_plcp) - calib->bad_plcp_ofdm;
4315 fa += le32toh(stats->ofdm.fa) - calib->fa_ofdm;
4316 fa *= 200 * 1024; /* 200TU */
4318 /* Save counters values for next call. */
4319 calib->bad_plcp_ofdm = le32toh(stats->ofdm.bad_plcp);
4320 calib->fa_ofdm = le32toh(stats->ofdm.fa);
4322 if (fa > 50 * rxena) {
4323 /* High false alarm count, decrease sensitivity. */
4324 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
4325 "%s: OFDM high false alarm count: %u\n", __func__, fa);
4326 inc(calib->ofdm_x1, 1, limits->max_ofdm_x1);
4327 inc(calib->ofdm_mrc_x1, 1, limits->max_ofdm_mrc_x1);
4328 inc(calib->ofdm_x4, 1, limits->max_ofdm_x4);
4329 inc(calib->ofdm_mrc_x4, 1, limits->max_ofdm_mrc_x4);
4331 } else if (fa < 5 * rxena) {
4332 /* Low false alarm count, increase sensitivity. */
4333 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
4334 "%s: OFDM low false alarm count: %u\n", __func__, fa);
4335 dec(calib->ofdm_x1, 1, limits->min_ofdm_x1);
4336 dec(calib->ofdm_mrc_x1, 1, limits->min_ofdm_mrc_x1);
4337 dec(calib->ofdm_x4, 1, limits->min_ofdm_x4);
4338 dec(calib->ofdm_mrc_x4, 1, limits->min_ofdm_mrc_x4);
4341 /* Compute maximum noise among 3 receivers. */
4342 for (i = 0; i < 3; i++)
4343 noise[i] = (le32toh(stats->general.noise[i]) >> 8) & 0xff;
4344 val = MAX(noise[0], noise[1]);
4345 val = MAX(noise[2], val);
4346 /* Insert it into our samples table. */
4347 calib->noise_samples[calib->cur_noise_sample] = val;
4348 calib->cur_noise_sample = (calib->cur_noise_sample + 1) % 20;
4350 /* Compute maximum noise among last 20 samples. */
4351 noise_ref = calib->noise_samples[0];
4352 for (i = 1; i < 20; i++)
4353 noise_ref = MAX(noise_ref, calib->noise_samples[i]);
4355 /* Compute maximum energy among 3 receivers. */
4356 for (i = 0; i < 3; i++)
4357 energy[i] = le32toh(stats->general.energy[i]);
4358 val = MIN(energy[0], energy[1]);
4359 val = MIN(energy[2], val);
4360 /* Insert it into our samples table. */
4361 calib->energy_samples[calib->cur_energy_sample] = val;
4362 calib->cur_energy_sample = (calib->cur_energy_sample + 1) % 10;
4364 /* Compute minimum energy among last 10 samples. */
4365 energy_min = calib->energy_samples[0];
4366 for (i = 1; i < 10; i++)
4367 energy_min = MAX(energy_min, calib->energy_samples[i]);
4370 /* Compute number of false alarms since last call for CCK. */
4371 fa = le32toh(stats->cck.bad_plcp) - calib->bad_plcp_cck;
4372 fa += le32toh(stats->cck.fa) - calib->fa_cck;
4373 fa *= 200 * 1024; /* 200TU */
4375 /* Save counters values for next call. */
4376 calib->bad_plcp_cck = le32toh(stats->cck.bad_plcp);
4377 calib->fa_cck = le32toh(stats->cck.fa);
4379 if (fa > 50 * rxena) {
4380 /* High false alarm count, decrease sensitivity. */
4381 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
4382 "%s: CCK high false alarm count: %u\n", __func__, fa);
4383 calib->cck_state = IWN_CCK_STATE_HIFA;
4386 if (calib->cck_x4 > 160) {
4387 calib->noise_ref = noise_ref;
4388 if (calib->energy_cck > 2)
4389 dec(calib->energy_cck, 2, energy_min);
4391 if (calib->cck_x4 < 160) {
4392 calib->cck_x4 = 161;
4395 inc(calib->cck_x4, 3, limits->max_cck_x4);
4397 inc(calib->cck_mrc_x4, 3, limits->max_cck_mrc_x4);
4399 } else if (fa < 5 * rxena) {
4400 /* Low false alarm count, increase sensitivity. */
4401 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
4402 "%s: CCK low false alarm count: %u\n", __func__, fa);
4403 calib->cck_state = IWN_CCK_STATE_LOFA;
4406 if (calib->cck_state != IWN_CCK_STATE_INIT &&
4407 (((int32_t)calib->noise_ref - (int32_t)noise_ref) > 2 ||
4408 calib->low_fa > 100)) {
4409 inc(calib->energy_cck, 2, limits->min_energy_cck);
4410 dec(calib->cck_x4, 3, limits->min_cck_x4);
4411 dec(calib->cck_mrc_x4, 3, limits->min_cck_mrc_x4);
4414 /* Not worth to increase or decrease sensitivity. */
4415 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
4416 "%s: CCK normal false alarm count: %u\n", __func__, fa);
4418 calib->noise_ref = noise_ref;
4420 if (calib->cck_state == IWN_CCK_STATE_HIFA) {
4421 /* Previous interval had many false alarms. */
4422 dec(calib->energy_cck, 8, energy_min);
4424 calib->cck_state = IWN_CCK_STATE_INIT;
4428 (void)iwn_send_sensitivity(sc);
4434 iwn_send_sensitivity(struct iwn_softc *sc)
4436 struct iwn_calib_state *calib = &sc->calib;
4437 struct iwn_sensitivity_cmd cmd;
4439 memset(&cmd, 0, sizeof cmd);
4440 cmd.which = IWN_SENSITIVITY_WORKTBL;
4441 /* OFDM modulation. */
4442 cmd.corr_ofdm_x1 = htole16(calib->ofdm_x1);
4443 cmd.corr_ofdm_mrc_x1 = htole16(calib->ofdm_mrc_x1);
4444 cmd.corr_ofdm_x4 = htole16(calib->ofdm_x4);
4445 cmd.corr_ofdm_mrc_x4 = htole16(calib->ofdm_mrc_x4);
4446 cmd.energy_ofdm = htole16(sc->limits->energy_ofdm);
4447 cmd.energy_ofdm_th = htole16(62);
4448 /* CCK modulation. */
4449 cmd.corr_cck_x4 = htole16(calib->cck_x4);
4450 cmd.corr_cck_mrc_x4 = htole16(calib->cck_mrc_x4);
4451 cmd.energy_cck = htole16(calib->energy_cck);
4452 /* Barker modulation: use default values. */
4453 cmd.corr_barker = htole16(190);
4454 cmd.corr_barker_mrc = htole16(390);
4456 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
4457 "%s: set sensitivity %d/%d/%d/%d/%d/%d/%d\n", __func__,
4458 calib->ofdm_x1, calib->ofdm_mrc_x1, calib->ofdm_x4,
4459 calib->ofdm_mrc_x4, calib->cck_x4,
4460 calib->cck_mrc_x4, calib->energy_cck);
4461 return iwn_cmd(sc, IWN_CMD_SET_SENSITIVITY, &cmd, sizeof cmd, 1);
4465 * Set STA mode power saving level (between 0 and 5).
4466 * Level 0 is CAM (Continuously Aware Mode), 5 is for maximum power saving.
4469 iwn_set_pslevel(struct iwn_softc *sc, int dtim, int level, int async)
4471 const struct iwn_pmgt *pmgt;
4472 struct iwn_pmgt_cmd cmd;
4473 uint32_t max, skip_dtim;
4477 /* Select which PS parameters to use. */
4479 pmgt = &iwn_pmgt[0][level];
4480 else if (dtim <= 10)
4481 pmgt = &iwn_pmgt[1][level];
4483 pmgt = &iwn_pmgt[2][level];
4485 memset(&cmd, 0, sizeof cmd);
4486 if (level != 0) /* not CAM */
4487 cmd.flags |= htole16(IWN_PS_ALLOW_SLEEP);
4489 cmd.flags |= htole16(IWN_PS_FAST_PD);
4490 /* Retrieve PCIe Active State Power Management (ASPM). */
4491 tmp = pci_read_config(sc->sc_dev, sc->sc_cap_off + 0x10, 1);
4492 if (!(tmp & 0x1)) /* L0s Entry disabled. */
4493 cmd.flags |= htole16(IWN_PS_PCI_PMGT);
4494 cmd.rxtimeout = htole32(pmgt->rxtimeout * 1024);
4495 cmd.txtimeout = htole32(pmgt->txtimeout * 1024);
4501 skip_dtim = pmgt->skip_dtim;
4502 if (skip_dtim != 0) {
4503 cmd.flags |= htole16(IWN_PS_SLEEP_OVER_DTIM);
4504 max = pmgt->intval[4];
4505 if (max == (uint32_t)-1)
4506 max = dtim * (skip_dtim + 1);
4507 else if (max > dtim)
4508 max = (max / dtim) * dtim;
4511 for (i = 0; i < 5; i++)
4512 cmd.intval[i] = htole32(MIN(max, pmgt->intval[i]));
4514 DPRINTF(sc, IWN_DEBUG_RESET, "setting power saving level to %d\n",
4516 return iwn_cmd(sc, IWN_CMD_SET_POWER_MODE, &cmd, sizeof cmd, async);
4520 iwn_config(struct iwn_softc *sc)
4522 const struct iwn_hal *hal = sc->sc_hal;
4523 struct ifnet *ifp = sc->sc_ifp;
4524 struct ieee80211com *ic = ifp->if_l2com;
4525 struct iwn_bluetooth bluetooth;
4530 /* Configure valid TX chains for 5000 Series. */
4531 if (sc->hw_type != IWN_HW_REV_TYPE_4965) {
4532 txmask = htole32(sc->txchainmask);
4533 DPRINTF(sc, IWN_DEBUG_RESET,
4534 "%s: configuring valid TX chains 0x%x\n", __func__, txmask);
4535 error = iwn_cmd(sc, IWN5000_CMD_TX_ANT_CONFIG, &txmask,
4538 device_printf(sc->sc_dev,
4539 "%s: could not configure valid TX chains, "
4540 "error %d\n", __func__, error);
4545 /* Configure bluetooth coexistence. */
4546 memset(&bluetooth, 0, sizeof bluetooth);
4547 bluetooth.flags = IWN_BT_COEX_CHAN_ANN | IWN_BT_COEX_BT_PRIO;
4548 bluetooth.lead_time = IWN_BT_LEAD_TIME_DEF;
4549 bluetooth.max_kill = IWN_BT_MAX_KILL_DEF;
4550 DPRINTF(sc, IWN_DEBUG_RESET, "%s: config bluetooth coexistence\n",
4552 error = iwn_cmd(sc, IWN_CMD_BT_COEX, &bluetooth, sizeof bluetooth, 0);
4554 device_printf(sc->sc_dev,
4555 "%s: could not configure bluetooth coexistence, error %d\n",
4560 /* Set mode, channel, RX filter and enable RX. */
4561 memset(&sc->rxon, 0, sizeof (struct iwn_rxon));
4562 IEEE80211_ADDR_COPY(sc->rxon.myaddr, IF_LLADDR(ifp));
4563 IEEE80211_ADDR_COPY(sc->rxon.wlap, IF_LLADDR(ifp));
4564 sc->rxon.chan = ieee80211_chan2ieee(ic, ic->ic_curchan);
4565 sc->rxon.flags = htole32(IWN_RXON_TSF | IWN_RXON_CTS_TO_SELF);
4566 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan))
4567 sc->rxon.flags |= htole32(IWN_RXON_AUTO | IWN_RXON_24GHZ);
4568 switch (ic->ic_opmode) {
4569 case IEEE80211_M_STA:
4570 sc->rxon.mode = IWN_MODE_STA;
4571 sc->rxon.filter = htole32(IWN_FILTER_MULTICAST);
4573 case IEEE80211_M_MONITOR:
4574 sc->rxon.mode = IWN_MODE_MONITOR;
4575 sc->rxon.filter = htole32(IWN_FILTER_MULTICAST |
4576 IWN_FILTER_CTL | IWN_FILTER_PROMISC);
4579 /* Should not get there. */
4582 sc->rxon.cck_mask = 0x0f; /* not yet negotiated */
4583 sc->rxon.ofdm_mask = 0xff; /* not yet negotiated */
4584 sc->rxon.ht_single_mask = 0xff;
4585 sc->rxon.ht_dual_mask = 0xff;
4586 sc->rxon.ht_triple_mask = 0xff;
4588 IWN_RXCHAIN_VALID(sc->rxchainmask) |
4589 IWN_RXCHAIN_MIMO_COUNT(2) |
4590 IWN_RXCHAIN_IDLE_COUNT(2);
4591 sc->rxon.rxchain = htole16(rxchain);
4592 DPRINTF(sc, IWN_DEBUG_RESET, "%s: setting configuration\n", __func__);
4593 error = iwn_cmd(sc, IWN_CMD_RXON, &sc->rxon, hal->rxonsz, 0);
4595 device_printf(sc->sc_dev,
4596 "%s: RXON command failed\n", __func__);
4600 error = iwn_add_broadcast_node(sc, 0);
4602 device_printf(sc->sc_dev,
4603 "%s: could not add broadcast node\n", __func__);
4607 /* Configuration has changed, set TX power accordingly. */
4608 error = hal->set_txpower(sc, ic->ic_curchan, 0);
4610 device_printf(sc->sc_dev,
4611 "%s: could not set TX power\n", __func__);
4615 error = iwn_set_critical_temp(sc);
4617 device_printf(sc->sc_dev,
4618 "%s: ccould not set critical temperature\n", __func__);
4622 /* Set power saving level to CAM during initialization. */
4623 error = iwn_set_pslevel(sc, 0, 0, 0);
4625 device_printf(sc->sc_dev,
4626 "%s: could not set power saving level\n", __func__);
4633 iwn_scan(struct iwn_softc *sc)
4635 struct ifnet *ifp = sc->sc_ifp;
4636 struct ieee80211com *ic = ifp->if_l2com;
4637 struct ieee80211_scan_state *ss = ic->ic_scan; /*XXX*/
4638 struct iwn_scan_hdr *hdr;
4639 struct iwn_cmd_data *tx;
4640 struct iwn_scan_essid *essid;
4641 struct iwn_scan_chan *chan;
4642 struct ieee80211_frame *wh;
4643 struct ieee80211_rateset *rs;
4644 struct ieee80211_channel *c;
4645 int buflen, error, nrates;
4647 uint8_t *buf, *frm, txant;
4649 buf = kmalloc(IWN_SCAN_MAXSZ, M_DEVBUF, M_INTWAIT | M_ZERO);
4651 device_printf(sc->sc_dev,
4652 "%s: could not allocate buffer for scan command\n",
4656 hdr = (struct iwn_scan_hdr *)buf;
4659 * Move to the next channel if no frames are received within 10ms
4660 * after sending the probe request.
4662 hdr->quiet_time = htole16(10); /* timeout in milliseconds */
4663 hdr->quiet_threshold = htole16(1); /* min # of packets */
4665 /* Select antennas for scanning. */
4667 IWN_RXCHAIN_VALID(sc->rxchainmask) |
4668 IWN_RXCHAIN_FORCE_MIMO_SEL(sc->rxchainmask) |
4669 IWN_RXCHAIN_DRIVER_FORCE;
4670 if (IEEE80211_IS_CHAN_A(ic->ic_curchan) &&
4671 sc->hw_type == IWN_HW_REV_TYPE_4965) {
4672 /* Ant A must be avoided in 5GHz because of an HW bug. */
4673 rxchain |= IWN_RXCHAIN_FORCE_SEL(IWN_ANT_BC);
4674 } else /* Use all available RX antennas. */
4675 rxchain |= IWN_RXCHAIN_FORCE_SEL(sc->rxchainmask);
4676 hdr->rxchain = htole16(rxchain);
4677 hdr->filter = htole32(IWN_FILTER_MULTICAST | IWN_FILTER_BEACON);
4679 tx = (struct iwn_cmd_data *)(hdr + 1);
4680 tx->flags = htole32(IWN_TX_AUTO_SEQ);
4681 tx->id = sc->sc_hal->broadcast_id;
4682 tx->lifetime = htole32(IWN_LIFETIME_INFINITE);
4684 if (IEEE80211_IS_CHAN_A(ic->ic_curchan)) {
4685 /* Send probe requests at 6Mbps. */
4686 tx->plcp = iwn_rates[IWN_RIDX_OFDM6].plcp;
4687 rs = &ic->ic_sup_rates[IEEE80211_MODE_11A];
4689 hdr->flags = htole32(IWN_RXON_24GHZ | IWN_RXON_AUTO);
4690 /* Send probe requests at 1Mbps. */
4691 tx->plcp = iwn_rates[IWN_RIDX_CCK1].plcp;
4692 tx->rflags = IWN_RFLAG_CCK;
4693 rs = &ic->ic_sup_rates[IEEE80211_MODE_11G];
4695 /* Use the first valid TX antenna. */
4696 txant = IWN_LSB(sc->txchainmask);
4697 tx->rflags |= IWN_RFLAG_ANT(txant);
4699 essid = (struct iwn_scan_essid *)(tx + 1);
4700 if (ss->ss_ssid[0].len != 0) {
4701 essid[0].id = IEEE80211_ELEMID_SSID;
4702 essid[0].len = ss->ss_ssid[0].len;
4703 memcpy(essid[0].data, ss->ss_ssid[0].ssid, ss->ss_ssid[0].len);
4707 * Build a probe request frame. Most of the following code is a
4708 * copy & paste of what is done in net80211.
4710 wh = (struct ieee80211_frame *)(essid + 20);
4711 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT |
4712 IEEE80211_FC0_SUBTYPE_PROBE_REQ;
4713 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS;
4714 IEEE80211_ADDR_COPY(wh->i_addr1, ifp->if_broadcastaddr);
4715 IEEE80211_ADDR_COPY(wh->i_addr2, IF_LLADDR(ifp));
4716 IEEE80211_ADDR_COPY(wh->i_addr3, ifp->if_broadcastaddr);
4717 *(uint16_t *)&wh->i_dur[0] = 0; /* filled by HW */
4718 *(uint16_t *)&wh->i_seq[0] = 0; /* filled by HW */
4720 frm = (uint8_t *)(wh + 1);
4723 *frm++ = IEEE80211_ELEMID_SSID;
4724 *frm++ = ss->ss_ssid[0].len;
4725 memcpy(frm, ss->ss_ssid[0].ssid, ss->ss_ssid[0].len);
4726 frm += ss->ss_ssid[0].len;
4728 /* Add supported rates IE. */
4729 *frm++ = IEEE80211_ELEMID_RATES;
4730 nrates = rs->rs_nrates;
4731 if (nrates > IEEE80211_RATE_SIZE)
4732 nrates = IEEE80211_RATE_SIZE;
4734 memcpy(frm, rs->rs_rates, nrates);
4737 /* Add supported xrates IE. */
4738 if (rs->rs_nrates > IEEE80211_RATE_SIZE) {
4739 nrates = rs->rs_nrates - IEEE80211_RATE_SIZE;
4740 *frm++ = IEEE80211_ELEMID_XRATES;
4741 *frm++ = (uint8_t)nrates;
4742 memcpy(frm, rs->rs_rates + IEEE80211_RATE_SIZE, nrates);
4746 /* Set length of probe request. */
4747 tx->len = htole16(frm - (uint8_t *)wh);
4750 chan = (struct iwn_scan_chan *)frm;
4751 chan->chan = htole16(ieee80211_chan2ieee(ic, c));
4753 if (ss->ss_nssid > 0)
4754 chan->flags |= htole32(IWN_CHAN_NPBREQS(1));
4755 chan->dsp_gain = 0x6e;
4756 if (IEEE80211_IS_CHAN_5GHZ(c) &&
4757 !(c->ic_flags & IEEE80211_CHAN_PASSIVE)) {
4758 chan->rf_gain = 0x3b;
4759 chan->active = htole16(24);
4760 chan->passive = htole16(110);
4761 chan->flags |= htole32(IWN_CHAN_ACTIVE);
4762 } else if (IEEE80211_IS_CHAN_5GHZ(c)) {
4763 chan->rf_gain = 0x3b;
4764 chan->active = htole16(24);
4765 if (sc->rxon.associd)
4766 chan->passive = htole16(78);
4768 chan->passive = htole16(110);
4769 hdr->crc_threshold = 0xffff;
4770 } else if (!(c->ic_flags & IEEE80211_CHAN_PASSIVE)) {
4771 chan->rf_gain = 0x28;
4772 chan->active = htole16(36);
4773 chan->passive = htole16(120);
4774 chan->flags |= htole32(IWN_CHAN_ACTIVE);
4776 chan->rf_gain = 0x28;
4777 chan->active = htole16(36);
4778 if (sc->rxon.associd)
4779 chan->passive = htole16(88);
4781 chan->passive = htole16(120);
4782 hdr->crc_threshold = 0xffff;
4785 DPRINTF(sc, IWN_DEBUG_STATE,
4786 "%s: chan %u flags 0x%x rf_gain 0x%x "
4787 "dsp_gain 0x%x active 0x%x passive 0x%x\n", __func__,
4788 chan->chan, chan->flags, chan->rf_gain, chan->dsp_gain,
4789 chan->active, chan->passive);
4793 buflen = (uint8_t *)chan - buf;
4794 hdr->len = htole16(buflen);
4796 DPRINTF(sc, IWN_DEBUG_STATE, "sending scan command nchan=%d\n",
4798 error = iwn_cmd(sc, IWN_CMD_SCAN, buf, buflen, 1);
4799 kfree(buf, M_DEVBUF);
4804 iwn_auth(struct iwn_softc *sc, struct ieee80211vap *vap)
4806 const struct iwn_hal *hal = sc->sc_hal;
4807 struct ifnet *ifp = sc->sc_ifp;
4808 struct ieee80211com *ic = ifp->if_l2com;
4809 struct ieee80211_node *ni = vap->iv_bss;
4812 sc->calib.state = IWN_CALIB_STATE_INIT;
4814 /* Update adapter configuration. */
4815 IEEE80211_ADDR_COPY(sc->rxon.bssid, ni->ni_bssid);
4816 sc->rxon.chan = htole16(ieee80211_chan2ieee(ic, ni->ni_chan));
4817 sc->rxon.flags = htole32(IWN_RXON_TSF | IWN_RXON_CTS_TO_SELF);
4818 if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan))
4819 sc->rxon.flags |= htole32(IWN_RXON_AUTO | IWN_RXON_24GHZ);
4820 if (ic->ic_flags & IEEE80211_F_SHSLOT)
4821 sc->rxon.flags |= htole32(IWN_RXON_SHSLOT);
4822 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
4823 sc->rxon.flags |= htole32(IWN_RXON_SHPREAMBLE);
4824 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) {
4825 sc->rxon.cck_mask = 0;
4826 sc->rxon.ofdm_mask = 0x15;
4827 } else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) {
4828 sc->rxon.cck_mask = 0x03;
4829 sc->rxon.ofdm_mask = 0;
4831 /* XXX assume 802.11b/g */
4832 sc->rxon.cck_mask = 0x0f;
4833 sc->rxon.ofdm_mask = 0x15;
4835 DPRINTF(sc, IWN_DEBUG_STATE,
4836 "%s: config chan %d mode %d flags 0x%x cck 0x%x ofdm 0x%x "
4837 "ht_single 0x%x ht_dual 0x%x rxchain 0x%x "
4838 "myaddr %6D wlap %6D bssid %6D associd %d filter 0x%x\n",
4840 le16toh(sc->rxon.chan), sc->rxon.mode, le32toh(sc->rxon.flags),
4841 sc->rxon.cck_mask, sc->rxon.ofdm_mask,
4842 sc->rxon.ht_single_mask, sc->rxon.ht_dual_mask,
4843 le16toh(sc->rxon.rxchain),
4844 sc->rxon.myaddr, ":", sc->rxon.wlap, ":", sc->rxon.bssid, ":",
4845 le16toh(sc->rxon.associd), le32toh(sc->rxon.filter));
4846 error = iwn_cmd(sc, IWN_CMD_RXON, &sc->rxon, hal->rxonsz, 1);
4848 device_printf(sc->sc_dev,
4849 "%s: RXON command failed, error %d\n", __func__, error);
4853 /* Configuration has changed, set TX power accordingly. */
4854 error = hal->set_txpower(sc, ni->ni_chan, 1);
4856 device_printf(sc->sc_dev,
4857 "%s: could not set Tx power, error %d\n", __func__, error);
4861 * Reconfiguring RXON clears the firmware nodes table so we must
4862 * add the broadcast node again.
4864 error = iwn_add_broadcast_node(sc, 1);
4866 device_printf(sc->sc_dev,
4867 "%s: could not add broadcast node, error %d\n",
4875 * Configure the adapter for associated state.
4878 iwn_run(struct iwn_softc *sc, struct ieee80211vap *vap)
4880 #define MS(v,x) (((v) & x) >> x##_S)
4881 const struct iwn_hal *hal = sc->sc_hal;
4882 struct ifnet *ifp = sc->sc_ifp;
4883 struct ieee80211com *ic = ifp->if_l2com;
4884 struct ieee80211_node *ni = vap->iv_bss;
4885 struct iwn_node_info node;
4888 sc->calib.state = IWN_CALIB_STATE_INIT;
4890 if (ic->ic_opmode == IEEE80211_M_MONITOR) {
4891 /* Link LED blinks while monitoring. */
4892 iwn_set_led(sc, IWN_LED_LINK, 5, 5);
4895 error = iwn_set_timing(sc, ni);
4897 device_printf(sc->sc_dev,
4898 "%s: could not set timing, error %d\n", __func__, error);
4902 /* Update adapter configuration. */
4903 IEEE80211_ADDR_COPY(sc->rxon.bssid, ni->ni_bssid);
4904 sc->rxon.chan = htole16(ieee80211_chan2ieee(ic, ni->ni_chan));
4905 sc->rxon.associd = htole16(IEEE80211_AID(ni->ni_associd));
4906 /* Short preamble and slot time are negotiated when associating. */
4907 sc->rxon.flags &= ~htole32(IWN_RXON_SHPREAMBLE | IWN_RXON_SHSLOT);
4908 sc->rxon.flags |= htole32(IWN_RXON_TSF | IWN_RXON_CTS_TO_SELF);
4909 if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan))
4910 sc->rxon.flags |= htole32(IWN_RXON_AUTO | IWN_RXON_24GHZ);
4912 sc->rxon.flags &= ~htole32(IWN_RXON_AUTO | IWN_RXON_24GHZ);
4913 if (ic->ic_flags & IEEE80211_F_SHSLOT)
4914 sc->rxon.flags |= htole32(IWN_RXON_SHSLOT);
4915 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
4916 sc->rxon.flags |= htole32(IWN_RXON_SHPREAMBLE);
4917 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) {
4918 sc->rxon.cck_mask = 0;
4919 sc->rxon.ofdm_mask = 0x15;
4920 } else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) {
4921 sc->rxon.cck_mask = 0x03;
4922 sc->rxon.ofdm_mask = 0;
4924 /* XXX assume 802.11b/g */
4925 sc->rxon.cck_mask = 0x0f;
4926 sc->rxon.ofdm_mask = 0x15;
4929 if (IEEE80211_IS_CHAN_HT(ni->ni_chan)) {
4930 sc->rxon.flags &= ~htole32(IWN_RXON_HT);
4931 if (IEEE80211_IS_CHAN_HT40U(ni->ni_chan))
4932 sc->rxon.flags |= htole32(IWN_RXON_HT40U);
4933 else if (IEEE80211_IS_CHAN_HT40D(ni->ni_chan))
4934 sc->rxon.flags |= htole32(IWN_RXON_HT40D);
4936 sc->rxon.flags |= htole32(IWN_RXON_HT20);
4937 sc->rxon.rxchain = htole16(
4938 IWN_RXCHAIN_VALID(3)
4939 | IWN_RXCHAIN_MIMO_COUNT(3)
4940 | IWN_RXCHAIN_IDLE_COUNT(1)
4941 | IWN_RXCHAIN_MIMO_FORCE);
4943 maxrxampdu = MS(ni->ni_htparam, IEEE80211_HTCAP_MAXRXAMPDU);
4944 ampdudensity = MS(ni->ni_htparam, IEEE80211_HTCAP_MPDUDENSITY);
4946 maxrxampdu = ampdudensity = 0;
4948 sc->rxon.filter |= htole32(IWN_FILTER_BSS);
4950 DPRINTF(sc, IWN_DEBUG_STATE,
4951 "%s: config chan %d mode %d flags 0x%x cck 0x%x ofdm 0x%x "
4952 "ht_single 0x%x ht_dual 0x%x rxchain 0x%x "
4953 "myaddr %6D wlap %6D bssid %6D associd %d filter 0x%x\n",
4955 le16toh(sc->rxon.chan), sc->rxon.mode, le32toh(sc->rxon.flags),
4956 sc->rxon.cck_mask, sc->rxon.ofdm_mask,
4957 sc->rxon.ht_single_mask, sc->rxon.ht_dual_mask,
4958 le16toh(sc->rxon.rxchain),
4959 sc->rxon.myaddr, ":", sc->rxon.wlap, ":", sc->rxon.bssid, ":",
4960 le16toh(sc->rxon.associd), le32toh(sc->rxon.filter));
4961 error = iwn_cmd(sc, IWN_CMD_RXON, &sc->rxon, hal->rxonsz, 1);
4963 device_printf(sc->sc_dev,
4964 "%s: could not update configuration, error %d\n",
4969 /* Configuration has changed, set TX power accordingly. */
4970 error = hal->set_txpower(sc, ni->ni_chan, 1);
4972 device_printf(sc->sc_dev,
4973 "%s: could not set Tx power, error %d\n", __func__, error);
4978 memset(&node, 0, sizeof node);
4979 IEEE80211_ADDR_COPY(node.macaddr, ni->ni_macaddr);
4980 node.id = IWN_ID_BSS;
4982 node.htflags = htole32(IWN_AMDPU_SIZE_FACTOR(3) |
4983 IWN_AMDPU_DENSITY(5)); /* 2us */
4985 DPRINTF(sc, IWN_DEBUG_STATE, "%s: add BSS node, id %d htflags 0x%x\n",
4986 __func__, node.id, le32toh(node.htflags));
4987 error = hal->add_node(sc, &node, 1);
4989 device_printf(sc->sc_dev, "could not add BSS node\n");
4992 DPRINTF(sc, IWN_DEBUG_STATE, "setting link quality for node %d\n",
4994 error = iwn_set_link_quality(sc, node.id, 1);
4996 device_printf(sc->sc_dev,
4997 "%s: could not setup MRR for node %d, error %d\n",
4998 __func__, node.id, error);
5002 error = iwn_init_sensitivity(sc);
5004 device_printf(sc->sc_dev,
5005 "%s: could not set sensitivity, error %d\n",
5010 /* Start periodic calibration timer. */
5011 sc->calib.state = IWN_CALIB_STATE_ASSOC;
5012 iwn_calib_reset(sc);
5014 /* Link LED always on while associated. */
5015 iwn_set_led(sc, IWN_LED_LINK, 0, 1);
5023 * This function is called by upper layer when an ADDBA request is received
5024 * from another STA and before the ADDBA response is sent.
5027 iwn_ampdu_rx_start(struct ieee80211com *ic, struct ieee80211_node *ni,
5030 struct ieee80211_rx_ba *ba = &ni->ni_rx_ba[tid];
5031 struct iwn_softc *sc = ic->ic_softc;
5032 struct iwn_node *wn = (void *)ni;
5033 struct iwn_node_info node;
5035 memset(&node, 0, sizeof node);
5037 node.control = IWN_NODE_UPDATE;
5038 node.flags = IWN_FLAG_SET_ADDBA;
5039 node.addba_tid = tid;
5040 node.addba_ssn = htole16(ba->ba_winstart);
5041 DPRINTF(sc, IWN_DEBUG_RECV, "ADDBA RA=%d TID=%d SSN=%d\n",
5042 wn->id, tid, ba->ba_winstart));
5043 return sc->sc_hal->add_node(sc, &node, 1);
5047 * This function is called by upper layer on teardown of an HT-immediate
5048 * Block Ack agreement (eg. uppon receipt of a DELBA frame.)
5051 iwn_ampdu_rx_stop(struct ieee80211com *ic, struct ieee80211_node *ni,
5054 struct iwn_softc *sc = ic->ic_softc;
5055 struct iwn_node *wn = (void *)ni;
5056 struct iwn_node_info node;
5058 memset(&node, 0, sizeof node);
5060 node.control = IWN_NODE_UPDATE;
5061 node.flags = IWN_FLAG_SET_DELBA;
5062 node.delba_tid = tid;
5063 DPRINTF(sc, IWN_DEBUG_RECV, "DELBA RA=%d TID=%d\n", wn->id, tid);
5064 (void)sc->sc_hal->add_node(sc, &node, 1);
5068 * This function is called by upper layer when an ADDBA response is received
5072 iwn_ampdu_tx_start(struct ieee80211com *ic, struct ieee80211_node *ni,
5075 struct ieee80211_tx_ba *ba = &ni->ni_tx_ba[tid];
5076 struct iwn_softc *sc = ic->ic_softc;
5077 const struct iwn_hal *hal = sc->sc_hal;
5078 struct iwn_node *wn = (void *)ni;
5079 struct iwn_node_info node;
5082 /* Enable TX for the specified RA/TID. */
5083 wn->disable_tid &= ~(1 << tid);
5084 memset(&node, 0, sizeof node);
5086 node.control = IWN_NODE_UPDATE;
5087 node.flags = IWN_FLAG_SET_DISABLE_TID;
5088 node.disable_tid = htole16(wn->disable_tid);
5089 error = hal->add_node(sc, &node, 1);
5093 if ((error = iwn_nic_lock(sc)) != 0)
5095 hal->ampdu_tx_start(sc, ni, tid, ba->ba_winstart);
5101 iwn_ampdu_tx_stop(struct ieee80211com *ic, struct ieee80211_node *ni,
5104 struct ieee80211_tx_ba *ba = &ni->ni_tx_ba[tid];
5105 struct iwn_softc *sc = ic->ic_softc;
5108 error = iwn_nic_lock(sc);
5111 sc->sc_hal->ampdu_tx_stop(sc, tid, ba->ba_winstart);
5116 iwn4965_ampdu_tx_start(struct iwn_softc *sc, struct ieee80211_node *ni,
5117 uint8_t tid, uint16_t ssn)
5119 struct iwn_node *wn = (void *)ni;
5122 /* Stop TX scheduler while we're changing its configuration. */
5123 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid),
5124 IWN4965_TXQ_STATUS_CHGACT);
5126 /* Assign RA/TID translation to the queue. */
5127 iwn_mem_write_2(sc, sc->sched_base + IWN4965_SCHED_TRANS_TBL(qid),
5130 /* Enable chain-building mode for the queue. */
5131 iwn_prph_setbits(sc, IWN4965_SCHED_QCHAIN_SEL, 1 << qid);
5133 /* Set starting sequence number from the ADDBA request. */
5134 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | (ssn & 0xff));
5135 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_RDPTR(qid), ssn);
5137 /* Set scheduler window size. */
5138 iwn_mem_write(sc, sc->sched_base + IWN4965_SCHED_QUEUE_OFFSET(qid),
5140 /* Set scheduler frame limit. */
5141 iwn_mem_write(sc, sc->sched_base + IWN4965_SCHED_QUEUE_OFFSET(qid) + 4,
5142 IWN_SCHED_LIMIT << 16);
5144 /* Enable interrupts for the queue. */
5145 iwn_prph_setbits(sc, IWN4965_SCHED_INTR_MASK, 1 << qid);
5147 /* Mark the queue as active. */
5148 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid),
5149 IWN4965_TXQ_STATUS_ACTIVE | IWN4965_TXQ_STATUS_AGGR_ENA |
5150 iwn_tid2fifo[tid] << 1);
5154 iwn4965_ampdu_tx_stop(struct iwn_softc *sc, uint8_t tid, uint16_t ssn)
5158 /* Stop TX scheduler while we're changing its configuration. */
5159 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid),
5160 IWN4965_TXQ_STATUS_CHGACT);
5162 /* Set starting sequence number from the ADDBA request. */
5163 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | (ssn & 0xff));
5164 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_RDPTR(qid), ssn);
5166 /* Disable interrupts for the queue. */
5167 iwn_prph_clrbits(sc, IWN4965_SCHED_INTR_MASK, 1 << qid);
5169 /* Mark the queue as inactive. */
5170 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid),
5171 IWN4965_TXQ_STATUS_INACTIVE | iwn_tid2fifo[tid] << 1);
5175 iwn5000_ampdu_tx_start(struct iwn_softc *sc, struct ieee80211_node *ni,
5176 uint8_t tid, uint16_t ssn)
5178 struct iwn_node *wn = (void *)ni;
5181 /* Stop TX scheduler while we're changing its configuration. */
5182 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid),
5183 IWN5000_TXQ_STATUS_CHGACT);
5185 /* Assign RA/TID translation to the queue. */
5186 iwn_mem_write_2(sc, sc->sched_base + IWN5000_SCHED_TRANS_TBL(qid),
5189 /* Enable chain-building mode for the queue. */
5190 iwn_prph_setbits(sc, IWN5000_SCHED_QCHAIN_SEL, 1 << qid);
5192 /* Enable aggregation for the queue. */
5193 iwn_prph_setbits(sc, IWN5000_SCHED_AGGR_SEL, 1 << qid);
5195 /* Set starting sequence number from the ADDBA request. */
5196 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | (ssn & 0xff));
5197 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_RDPTR(qid), ssn);
5199 /* Set scheduler window size and frame limit. */
5200 iwn_mem_write(sc, sc->sched_base + IWN5000_SCHED_QUEUE_OFFSET(qid) + 4,
5201 IWN_SCHED_LIMIT << 16 | IWN_SCHED_WINSZ);
5203 /* Enable interrupts for the queue. */
5204 iwn_prph_setbits(sc, IWN5000_SCHED_INTR_MASK, 1 << qid);
5206 /* Mark the queue as active. */
5207 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid),
5208 IWN5000_TXQ_STATUS_ACTIVE | iwn_tid2fifo[tid]);
5212 iwn5000_ampdu_tx_stop(struct iwn_softc *sc, uint8_t tid, uint16_t ssn)
5216 /* Stop TX scheduler while we're changing its configuration. */
5217 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid),
5218 IWN5000_TXQ_STATUS_CHGACT);
5220 /* Disable aggregation for the queue. */
5221 iwn_prph_clrbits(sc, IWN5000_SCHED_AGGR_SEL, 1 << qid);
5223 /* Set starting sequence number from the ADDBA request. */
5224 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | (ssn & 0xff));
5225 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_RDPTR(qid), ssn);
5227 /* Disable interrupts for the queue. */
5228 iwn_prph_clrbits(sc, IWN5000_SCHED_INTR_MASK, 1 << qid);
5230 /* Mark the queue as inactive. */
5231 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid),
5232 IWN5000_TXQ_STATUS_INACTIVE | iwn_tid2fifo[tid]);
5237 * Query calibration tables from the initialization firmware. We do this
5238 * only once at first boot. Called from a process context.
5241 iwn5000_query_calibration(struct iwn_softc *sc)
5243 struct iwn5000_calib_config cmd;
5246 memset(&cmd, 0, sizeof cmd);
5247 cmd.ucode.once.enable = 0xffffffff;
5248 cmd.ucode.once.start = 0xffffffff;
5249 cmd.ucode.once.send = 0xffffffff;
5250 cmd.ucode.flags = 0xffffffff;
5251 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: sending calibration query\n",
5253 error = iwn_cmd(sc, IWN5000_CMD_CALIB_CONFIG, &cmd, sizeof cmd, 0);
5257 /* Wait at most two seconds for calibration to complete. */
5258 if (!(sc->sc_flags & IWN_FLAG_CALIB_DONE))
5259 error = tsleep(sc, 0, "iwninit", 2 * hz);
5264 * Send calibration results to the runtime firmware. These results were
5265 * obtained on first boot from the initialization firmware.
5268 iwn5000_send_calibration(struct iwn_softc *sc)
5272 for (idx = 0; idx < 5; idx++) {
5273 if (sc->calibcmd[idx].buf == NULL)
5274 continue; /* No results available. */
5275 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
5276 "send calibration result idx=%d len=%d\n",
5277 idx, sc->calibcmd[idx].len);
5278 error = iwn_cmd(sc, IWN_CMD_PHY_CALIB, sc->calibcmd[idx].buf,
5279 sc->calibcmd[idx].len, 0);
5281 device_printf(sc->sc_dev,
5282 "%s: could not send calibration result, error %d\n",
5291 iwn5000_send_wimax_coex(struct iwn_softc *sc)
5293 struct iwn5000_wimax_coex wimax;
5296 if (sc->hw_type == IWN_HW_REV_TYPE_6050) {
5297 /* Enable WiMAX coexistence for combo adapters. */
5299 IWN_WIMAX_COEX_ASSOC_WA_UNMASK |
5300 IWN_WIMAX_COEX_UNASSOC_WA_UNMASK |
5301 IWN_WIMAX_COEX_STA_TABLE_VALID |
5302 IWN_WIMAX_COEX_ENABLE;
5303 memcpy(wimax.events, iwn6050_wimax_events,
5304 sizeof iwn6050_wimax_events);
5308 /* Disable WiMAX coexistence. */
5310 memset(wimax.events, 0, sizeof wimax.events);
5312 DPRINTF(sc, IWN_DEBUG_RESET, "%s: Configuring WiMAX coexistence\n",
5314 return iwn_cmd(sc, IWN5000_CMD_WIMAX_COEX, &wimax, sizeof wimax, 0);
5318 * This function is called after the runtime firmware notifies us of its
5319 * readiness (called in a process context.)
5322 iwn4965_post_alive(struct iwn_softc *sc)
5326 if ((error = iwn_nic_lock(sc)) != 0)
5329 /* Clear TX scheduler state in SRAM. */
5330 sc->sched_base = iwn_prph_read(sc, IWN_SCHED_SRAM_ADDR);
5331 iwn_mem_set_region_4(sc, sc->sched_base + IWN4965_SCHED_CTX_OFF, 0,
5332 IWN4965_SCHED_CTX_LEN / sizeof (uint32_t));
5334 /* Set physical address of TX scheduler rings (1KB aligned.) */
5335 iwn_prph_write(sc, IWN4965_SCHED_DRAM_ADDR, sc->sched_dma.paddr >> 10);
5337 IWN_SETBITS(sc, IWN_FH_TX_CHICKEN, IWN_FH_TX_CHICKEN_SCHED_RETRY);
5339 /* Disable chain mode for all our 16 queues. */
5340 iwn_prph_write(sc, IWN4965_SCHED_QCHAIN_SEL, 0);
5342 for (qid = 0; qid < IWN4965_NTXQUEUES; qid++) {
5343 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_RDPTR(qid), 0);
5344 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | 0);
5346 /* Set scheduler window size. */
5347 iwn_mem_write(sc, sc->sched_base +
5348 IWN4965_SCHED_QUEUE_OFFSET(qid), IWN_SCHED_WINSZ);
5349 /* Set scheduler frame limit. */
5350 iwn_mem_write(sc, sc->sched_base +
5351 IWN4965_SCHED_QUEUE_OFFSET(qid) + 4,
5352 IWN_SCHED_LIMIT << 16);
5355 /* Enable interrupts for all our 16 queues. */
5356 iwn_prph_write(sc, IWN4965_SCHED_INTR_MASK, 0xffff);
5357 /* Identify TX FIFO rings (0-7). */
5358 iwn_prph_write(sc, IWN4965_SCHED_TXFACT, 0xff);
5360 /* Mark TX rings (4 EDCA + cmd + 2 HCCA) as active. */
5361 for (qid = 0; qid < 7; qid++) {
5362 static uint8_t qid2fifo[] = { 3, 2, 1, 0, 4, 5, 6 };
5363 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid),
5364 IWN4965_TXQ_STATUS_ACTIVE | qid2fifo[qid] << 1);
5371 * This function is called after the initialization or runtime firmware
5372 * notifies us of its readiness (called in a process context.)
5375 iwn5000_post_alive(struct iwn_softc *sc)
5379 /* Switch to using ICT interrupt mode. */
5380 iwn5000_ict_reset(sc);
5382 error = iwn_nic_lock(sc);
5386 /* Clear TX scheduler state in SRAM. */
5387 sc->sched_base = iwn_prph_read(sc, IWN_SCHED_SRAM_ADDR);
5388 iwn_mem_set_region_4(sc, sc->sched_base + IWN5000_SCHED_CTX_OFF, 0,
5389 IWN5000_SCHED_CTX_LEN / sizeof (uint32_t));
5391 /* Set physical address of TX scheduler rings (1KB aligned.) */
5392 iwn_prph_write(sc, IWN5000_SCHED_DRAM_ADDR, sc->sched_dma.paddr >> 10);
5394 IWN_SETBITS(sc, IWN_FH_TX_CHICKEN, IWN_FH_TX_CHICKEN_SCHED_RETRY);
5396 /* Enable chain mode for all queues, except command queue. */
5397 iwn_prph_write(sc, IWN5000_SCHED_QCHAIN_SEL, 0xfffef);
5398 iwn_prph_write(sc, IWN5000_SCHED_AGGR_SEL, 0);
5400 for (qid = 0; qid < IWN5000_NTXQUEUES; qid++) {
5401 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_RDPTR(qid), 0);
5402 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | 0);
5404 iwn_mem_write(sc, sc->sched_base +
5405 IWN5000_SCHED_QUEUE_OFFSET(qid), 0);
5406 /* Set scheduler window size and frame limit. */
5407 iwn_mem_write(sc, sc->sched_base +
5408 IWN5000_SCHED_QUEUE_OFFSET(qid) + 4,
5409 IWN_SCHED_LIMIT << 16 | IWN_SCHED_WINSZ);
5412 /* Enable interrupts for all our 20 queues. */
5413 iwn_prph_write(sc, IWN5000_SCHED_INTR_MASK, 0xfffff);
5414 /* Identify TX FIFO rings (0-7). */
5415 iwn_prph_write(sc, IWN5000_SCHED_TXFACT, 0xff);
5417 /* Mark TX rings (4 EDCA + cmd + 2 HCCA) as active. */
5418 for (qid = 0; qid < 7; qid++) {
5419 static uint8_t qid2fifo[] = { 3, 2, 1, 0, 7, 5, 6 };
5420 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid),
5421 IWN5000_TXQ_STATUS_ACTIVE | qid2fifo[qid]);
5425 /* Configure WiMAX coexistence for combo adapters. */
5426 error = iwn5000_send_wimax_coex(sc);
5428 device_printf(sc->sc_dev,
5429 "%s: could not configure WiMAX coexistence, error %d\n",
5433 if (sc->hw_type != IWN_HW_REV_TYPE_5150) {
5434 struct iwn5000_phy_calib_crystal cmd;
5436 /* Perform crystal calibration. */
5437 memset(&cmd, 0, sizeof cmd);
5438 cmd.code = IWN5000_PHY_CALIB_CRYSTAL;
5441 cmd.cap_pin[0] = le32toh(sc->eeprom_crystal) & 0xff;
5442 cmd.cap_pin[1] = (le32toh(sc->eeprom_crystal) >> 16) & 0xff;
5443 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
5444 "sending crystal calibration %d, %d\n",
5445 cmd.cap_pin[0], cmd.cap_pin[1]);
5446 error = iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 0);
5448 device_printf(sc->sc_dev,
5449 "%s: crystal calibration failed, error %d\n",
5454 if (!(sc->sc_flags & IWN_FLAG_CALIB_DONE)) {
5455 /* Query calibration from the initialization firmware. */
5456 error = iwn5000_query_calibration(sc);
5458 device_printf(sc->sc_dev,
5459 "%s: could not query calibration, error %d\n",
5464 * We have the calibration results now, reboot with the
5465 * runtime firmware (call ourselves recursively!)
5468 error = iwn_hw_init(sc);
5470 /* Send calibration results to runtime firmware. */
5471 error = iwn5000_send_calibration(sc);
5477 * The firmware boot code is small and is intended to be copied directly into
5478 * the NIC internal memory (no DMA transfer.)
5481 iwn4965_load_bootcode(struct iwn_softc *sc, const uint8_t *ucode, int size)
5485 size /= sizeof (uint32_t);
5487 error = iwn_nic_lock(sc);
5491 /* Copy microcode image into NIC memory. */
5492 iwn_prph_write_region_4(sc, IWN_BSM_SRAM_BASE,
5493 (const uint32_t *)ucode, size);
5495 iwn_prph_write(sc, IWN_BSM_WR_MEM_SRC, 0);
5496 iwn_prph_write(sc, IWN_BSM_WR_MEM_DST, IWN_FW_TEXT_BASE);
5497 iwn_prph_write(sc, IWN_BSM_WR_DWCOUNT, size);
5499 /* Start boot load now. */
5500 iwn_prph_write(sc, IWN_BSM_WR_CTRL, IWN_BSM_WR_CTRL_START);
5502 /* Wait for transfer to complete. */
5503 for (ntries = 0; ntries < 1000; ntries++) {
5504 if (!(iwn_prph_read(sc, IWN_BSM_WR_CTRL) &
5505 IWN_BSM_WR_CTRL_START))
5509 if (ntries == 1000) {
5510 device_printf(sc->sc_dev, "%s: could not load boot firmware\n",
5516 /* Enable boot after power up. */
5517 iwn_prph_write(sc, IWN_BSM_WR_CTRL, IWN_BSM_WR_CTRL_START_EN);
5524 iwn4965_load_firmware(struct iwn_softc *sc)
5526 struct iwn_fw_info *fw = &sc->fw;
5527 struct iwn_dma_info *dma = &sc->fw_dma;
5530 /* Copy initialization sections into pre-allocated DMA-safe memory. */
5531 memcpy(dma->vaddr, fw->init.data, fw->init.datasz);
5532 bus_dmamap_sync(sc->fw_dma.tag, dma->map, BUS_DMASYNC_PREWRITE);
5533 memcpy(dma->vaddr + IWN4965_FW_DATA_MAXSZ,
5534 fw->init.text, fw->init.textsz);
5535 bus_dmamap_sync(sc->fw_dma.tag, dma->map, BUS_DMASYNC_PREWRITE);
5537 /* Tell adapter where to find initialization sections. */
5538 error = iwn_nic_lock(sc);
5541 iwn_prph_write(sc, IWN_BSM_DRAM_DATA_ADDR, dma->paddr >> 4);
5542 iwn_prph_write(sc, IWN_BSM_DRAM_DATA_SIZE, fw->init.datasz);
5543 iwn_prph_write(sc, IWN_BSM_DRAM_TEXT_ADDR,
5544 (dma->paddr + IWN4965_FW_DATA_MAXSZ) >> 4);
5545 iwn_prph_write(sc, IWN_BSM_DRAM_TEXT_SIZE, fw->init.textsz);
5548 /* Load firmware boot code. */
5549 error = iwn4965_load_bootcode(sc, fw->boot.text, fw->boot.textsz);
5551 device_printf(sc->sc_dev, "%s: could not load boot firmware\n",
5555 /* Now press "execute". */
5556 IWN_WRITE(sc, IWN_RESET, 0);
5558 /* Wait at most one second for first alive notification. */
5559 error = tsleep(sc, 0, "iwninit", hz);
5561 device_printf(sc->sc_dev,
5562 "%s: timeout waiting for adapter to initialize, error %d\n",
5567 /* Retrieve current temperature for initial TX power calibration. */
5568 sc->rawtemp = sc->ucode_info.temp[3].chan20MHz;
5569 sc->temp = iwn4965_get_temperature(sc);
5571 /* Copy runtime sections into pre-allocated DMA-safe memory. */
5572 memcpy(dma->vaddr, fw->main.data, fw->main.datasz);
5573 bus_dmamap_sync(sc->fw_dma.tag, dma->map, BUS_DMASYNC_PREWRITE);
5574 memcpy(dma->vaddr + IWN4965_FW_DATA_MAXSZ,
5575 fw->main.text, fw->main.textsz);
5576 bus_dmamap_sync(sc->fw_dma.tag, dma->map, BUS_DMASYNC_PREWRITE);
5578 /* Tell adapter where to find runtime sections. */
5579 error = iwn_nic_lock(sc);
5583 iwn_prph_write(sc, IWN_BSM_DRAM_DATA_ADDR, dma->paddr >> 4);
5584 iwn_prph_write(sc, IWN_BSM_DRAM_DATA_SIZE, fw->main.datasz);
5585 iwn_prph_write(sc, IWN_BSM_DRAM_TEXT_ADDR,
5586 (dma->paddr + IWN4965_FW_DATA_MAXSZ) >> 4);
5587 iwn_prph_write(sc, IWN_BSM_DRAM_TEXT_SIZE,
5588 IWN_FW_UPDATED | fw->main.textsz);
5595 iwn5000_load_firmware_section(struct iwn_softc *sc, uint32_t dst,
5596 const uint8_t *section, int size)
5598 struct iwn_dma_info *dma = &sc->fw_dma;
5601 /* Copy firmware section into pre-allocated DMA-safe memory. */
5602 memcpy(dma->vaddr, section, size);
5603 bus_dmamap_sync(sc->fw_dma.tag, dma->map, BUS_DMASYNC_PREWRITE);
5605 error = iwn_nic_lock(sc);
5609 IWN_WRITE(sc, IWN_FH_TX_CONFIG(IWN_SRVC_DMACHNL),
5610 IWN_FH_TX_CONFIG_DMA_PAUSE);
5612 IWN_WRITE(sc, IWN_FH_SRAM_ADDR(IWN_SRVC_DMACHNL), dst);
5613 IWN_WRITE(sc, IWN_FH_TFBD_CTRL0(IWN_SRVC_DMACHNL),
5614 IWN_LOADDR(dma->paddr));
5615 IWN_WRITE(sc, IWN_FH_TFBD_CTRL1(IWN_SRVC_DMACHNL),
5616 IWN_HIADDR(dma->paddr) << 28 | size);
5617 IWN_WRITE(sc, IWN_FH_TXBUF_STATUS(IWN_SRVC_DMACHNL),
5618 IWN_FH_TXBUF_STATUS_TBNUM(1) |
5619 IWN_FH_TXBUF_STATUS_TBIDX(1) |
5620 IWN_FH_TXBUF_STATUS_TFBD_VALID);
5622 /* Kick Flow Handler to start DMA transfer. */
5623 IWN_WRITE(sc, IWN_FH_TX_CONFIG(IWN_SRVC_DMACHNL),
5624 IWN_FH_TX_CONFIG_DMA_ENA | IWN_FH_TX_CONFIG_CIRQ_HOST_ENDTFD);
5628 /* Wait at most five seconds for FH DMA transfer to complete. */
5629 return tsleep(sc, 0, "iwninit", hz);
5633 iwn5000_load_firmware(struct iwn_softc *sc)
5635 struct iwn_fw_part *fw;
5638 /* Load the initialization firmware on first boot only. */
5639 fw = (sc->sc_flags & IWN_FLAG_CALIB_DONE) ?
5640 &sc->fw.main : &sc->fw.init;
5642 error = iwn5000_load_firmware_section(sc, IWN_FW_TEXT_BASE,
5643 fw->text, fw->textsz);
5645 device_printf(sc->sc_dev,
5646 "%s: could not load firmware %s section, error %d\n",
5647 __func__, ".text", error);
5650 error = iwn5000_load_firmware_section(sc, IWN_FW_DATA_BASE,
5651 fw->data, fw->datasz);
5653 device_printf(sc->sc_dev,
5654 "%s: could not load firmware %s section, error %d\n",
5655 __func__, ".data", error);
5659 /* Now press "execute". */
5660 IWN_WRITE(sc, IWN_RESET, 0);
5665 iwn_read_firmware(struct iwn_softc *sc)
5667 const struct iwn_hal *hal = sc->sc_hal;
5668 struct iwn_fw_info *fw = &sc->fw;
5669 const uint32_t *ptr;
5675 /* Read firmware image from filesystem. */
5676 sc->fw_fp = firmware_get(sc->fwname);
5677 if (sc->fw_fp == NULL) {
5678 device_printf(sc->sc_dev,
5679 "%s: could not load firmare image \"%s\"\n", __func__,
5686 size = sc->fw_fp->datasize;
5688 device_printf(sc->sc_dev,
5689 "%s: truncated firmware header: %zu bytes\n",
5694 /* Process firmware header. */
5695 ptr = (const uint32_t *)sc->fw_fp->data;
5696 rev = le32toh(*ptr++);
5697 /* Check firmware API version. */
5698 if (IWN_FW_API(rev) <= 1) {
5699 device_printf(sc->sc_dev,
5700 "%s: bad firmware, need API version >=2\n", __func__);
5703 if (IWN_FW_API(rev) >= 3) {
5704 /* Skip build number (version 2 header). */
5708 fw->main.textsz = le32toh(*ptr++);
5709 fw->main.datasz = le32toh(*ptr++);
5710 fw->init.textsz = le32toh(*ptr++);
5711 fw->init.datasz = le32toh(*ptr++);
5712 fw->boot.textsz = le32toh(*ptr++);
5715 /* Sanity-check firmware header. */
5716 if (fw->main.textsz > hal->fw_text_maxsz ||
5717 fw->main.datasz > hal->fw_data_maxsz ||
5718 fw->init.textsz > hal->fw_text_maxsz ||
5719 fw->init.datasz > hal->fw_data_maxsz ||
5720 fw->boot.textsz > IWN_FW_BOOT_TEXT_MAXSZ ||
5721 (fw->boot.textsz & 3) != 0) {
5722 device_printf(sc->sc_dev, "%s: invalid firmware header\n",
5727 /* Check that all firmware sections fit. */
5728 if (fw->main.textsz + fw->main.datasz + fw->init.textsz +
5729 fw->init.datasz + fw->boot.textsz > size) {
5730 device_printf(sc->sc_dev,
5731 "%s: firmware file too short: %zu bytes\n",
5736 /* Get pointers to firmware sections. */
5737 fw->main.text = (const uint8_t *)ptr;
5738 fw->main.data = fw->main.text + fw->main.textsz;
5739 fw->init.text = fw->main.data + fw->main.datasz;
5740 fw->init.data = fw->init.text + fw->init.textsz;
5741 fw->boot.text = fw->init.data + fw->init.datasz;
5747 iwn_clock_wait(struct iwn_softc *sc)
5751 /* Set "initialization complete" bit. */
5752 IWN_SETBITS(sc, IWN_GP_CNTRL, IWN_GP_CNTRL_INIT_DONE);
5754 /* Wait for clock stabilization. */
5755 for (ntries = 0; ntries < 2500; ntries++) {
5756 if (IWN_READ(sc, IWN_GP_CNTRL) & IWN_GP_CNTRL_MAC_CLOCK_READY)
5760 device_printf(sc->sc_dev,
5761 "%s: timeout waiting for clock stabilization\n", __func__);
5766 iwn_apm_init(struct iwn_softc *sc)
5771 /* Disable L0s exit timer (NMI bug workaround.) */
5772 IWN_SETBITS(sc, IWN_GIO_CHICKEN, IWN_GIO_CHICKEN_DIS_L0S_TIMER);
5773 /* Don't wait for ICH L0s (ICH bug workaround.) */
5774 IWN_SETBITS(sc, IWN_GIO_CHICKEN, IWN_GIO_CHICKEN_L1A_NO_L0S_RX);
5776 /* Set FH wait threshold to max (HW bug under stress workaround.) */
5777 IWN_SETBITS(sc, IWN_DBG_HPET_MEM, 0xffff0000);
5779 /* Enable HAP INTA to move adapter from L1a to L0s. */
5780 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_HAP_WAKE_L1A);
5782 /* Retrieve PCIe Active State Power Management (ASPM). */
5783 tmp = pci_read_config(sc->sc_dev, sc->sc_cap_off + 0x10, 1);
5784 /* Workaround for HW instability in PCIe L0->L0s->L1 transition. */
5785 if (tmp & 0x02) /* L1 Entry enabled. */
5786 IWN_SETBITS(sc, IWN_GIO, IWN_GIO_L0S_ENA);
5788 IWN_CLRBITS(sc, IWN_GIO, IWN_GIO_L0S_ENA);
5790 if (sc->hw_type != IWN_HW_REV_TYPE_4965 &&
5791 sc->hw_type != IWN_HW_REV_TYPE_6000 &&
5792 sc->hw_type != IWN_HW_REV_TYPE_6050)
5793 IWN_SETBITS(sc, IWN_ANA_PLL, IWN_ANA_PLL_INIT);
5795 /* Wait for clock stabilization before accessing prph. */
5796 error = iwn_clock_wait(sc);
5800 error = iwn_nic_lock(sc);
5804 if (sc->hw_type == IWN_HW_REV_TYPE_4965) {
5805 /* Enable DMA and BSM (Bootstrap State Machine.) */
5806 iwn_prph_write(sc, IWN_APMG_CLK_EN,
5807 IWN_APMG_CLK_CTRL_DMA_CLK_RQT |
5808 IWN_APMG_CLK_CTRL_BSM_CLK_RQT);
5811 iwn_prph_write(sc, IWN_APMG_CLK_EN,
5812 IWN_APMG_CLK_CTRL_DMA_CLK_RQT);
5816 /* Disable L1-Active. */
5817 iwn_prph_setbits(sc, IWN_APMG_PCI_STT, IWN_APMG_PCI_STT_L1A_DIS);
5824 iwn_apm_stop_master(struct iwn_softc *sc)
5828 /* Stop busmaster DMA activity. */
5829 IWN_SETBITS(sc, IWN_RESET, IWN_RESET_STOP_MASTER);
5830 for (ntries = 0; ntries < 100; ntries++) {
5831 if (IWN_READ(sc, IWN_RESET) & IWN_RESET_MASTER_DISABLED)
5835 device_printf(sc->sc_dev, "%s: timeout waiting for master\n",
5840 iwn_apm_stop(struct iwn_softc *sc)
5842 iwn_apm_stop_master(sc);
5844 /* Reset the entire device. */
5845 IWN_SETBITS(sc, IWN_RESET, IWN_RESET_SW);
5847 /* Clear "initialization complete" bit. */
5848 IWN_CLRBITS(sc, IWN_GP_CNTRL, IWN_GP_CNTRL_INIT_DONE);
5852 iwn4965_nic_config(struct iwn_softc *sc)
5854 if (IWN_RFCFG_TYPE(sc->rfcfg) == 1) {
5856 * I don't believe this to be correct but this is what the
5857 * vendor driver is doing. Probably the bits should not be
5858 * shifted in IWN_RFCFG_*.
5860 IWN_SETBITS(sc, IWN_HW_IF_CONFIG,
5861 IWN_RFCFG_TYPE(sc->rfcfg) |
5862 IWN_RFCFG_STEP(sc->rfcfg) |
5863 IWN_RFCFG_DASH(sc->rfcfg));
5865 IWN_SETBITS(sc, IWN_HW_IF_CONFIG,
5866 IWN_HW_IF_CONFIG_RADIO_SI | IWN_HW_IF_CONFIG_MAC_SI);
5871 iwn5000_nic_config(struct iwn_softc *sc)
5876 if (IWN_RFCFG_TYPE(sc->rfcfg) < 3) {
5877 IWN_SETBITS(sc, IWN_HW_IF_CONFIG,
5878 IWN_RFCFG_TYPE(sc->rfcfg) |
5879 IWN_RFCFG_STEP(sc->rfcfg) |
5880 IWN_RFCFG_DASH(sc->rfcfg));
5882 IWN_SETBITS(sc, IWN_HW_IF_CONFIG,
5883 IWN_HW_IF_CONFIG_RADIO_SI | IWN_HW_IF_CONFIG_MAC_SI);
5885 error = iwn_nic_lock(sc);
5888 iwn_prph_setbits(sc, IWN_APMG_PS, IWN_APMG_PS_EARLY_PWROFF_DIS);
5890 if (sc->hw_type == IWN_HW_REV_TYPE_1000) {
5892 * Select first Switching Voltage Regulator (1.32V) to
5893 * solve a stability issue related to noisy DC2DC line
5894 * in the silicon of 1000 Series.
5896 tmp = iwn_prph_read(sc, IWN_APMG_DIGITAL_SVR);
5897 tmp &= ~IWN_APMG_DIGITAL_SVR_VOLTAGE_MASK;
5898 tmp |= IWN_APMG_DIGITAL_SVR_VOLTAGE_1_32;
5899 iwn_prph_write(sc, IWN_APMG_DIGITAL_SVR, tmp);
5903 if (sc->sc_flags & IWN_FLAG_INTERNAL_PA) {
5904 /* Use internal power amplifier only. */
5905 IWN_WRITE(sc, IWN_GP_DRIVER, IWN_GP_DRIVER_RADIO_2X2_IPA);
5907 if (sc->hw_type == IWN_HW_REV_TYPE_6050 && sc->calib_ver >= 6) {
5908 /* Indicate that ROM calibration version is >=6. */
5909 IWN_SETBITS(sc, IWN_GP_DRIVER, IWN_GP_DRIVER_CALIB_VER6);
5915 * Take NIC ownership over Intel Active Management Technology (AMT).
5918 iwn_hw_prepare(struct iwn_softc *sc)
5922 /* Check if hardware is ready. */
5923 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_NIC_READY);
5924 for (ntries = 0; ntries < 5; ntries++) {
5925 if (IWN_READ(sc, IWN_HW_IF_CONFIG) &
5926 IWN_HW_IF_CONFIG_NIC_READY)
5931 /* Hardware not ready, force into ready state. */
5932 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_PREPARE);
5933 for (ntries = 0; ntries < 15000; ntries++) {
5934 if (!(IWN_READ(sc, IWN_HW_IF_CONFIG) &
5935 IWN_HW_IF_CONFIG_PREPARE_DONE))
5939 if (ntries == 15000)
5942 /* Hardware should be ready now. */
5943 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_NIC_READY);
5944 for (ntries = 0; ntries < 5; ntries++) {
5945 if (IWN_READ(sc, IWN_HW_IF_CONFIG) &
5946 IWN_HW_IF_CONFIG_NIC_READY)
5954 iwn_hw_init(struct iwn_softc *sc)
5956 const struct iwn_hal *hal = sc->sc_hal;
5957 int error, chnl, qid;
5959 /* Clear pending interrupts. */
5960 IWN_WRITE(sc, IWN_INT, 0xffffffff);
5962 error = iwn_apm_init(sc);
5964 device_printf(sc->sc_dev,
5965 "%s: could not power ON adapter, error %d\n",
5970 /* Select VMAIN power source. */
5971 error = iwn_nic_lock(sc);
5974 iwn_prph_clrbits(sc, IWN_APMG_PS, IWN_APMG_PS_PWR_SRC_MASK);
5977 /* Perform adapter-specific initialization. */
5978 error = hal->nic_config(sc);
5982 /* Initialize RX ring. */
5983 error = iwn_nic_lock(sc);
5986 IWN_WRITE(sc, IWN_FH_RX_CONFIG, 0);
5987 IWN_WRITE(sc, IWN_FH_RX_WPTR, 0);
5988 /* Set physical address of RX ring (256-byte aligned.) */
5989 IWN_WRITE(sc, IWN_FH_RX_BASE, sc->rxq.desc_dma.paddr >> 8);
5990 /* Set physical address of RX status (16-byte aligned.) */
5991 IWN_WRITE(sc, IWN_FH_STATUS_WPTR, sc->rxq.stat_dma.paddr >> 4);
5993 IWN_WRITE(sc, IWN_FH_RX_CONFIG,
5994 IWN_FH_RX_CONFIG_ENA |
5995 IWN_FH_RX_CONFIG_IGN_RXF_EMPTY | /* HW bug workaround */
5996 IWN_FH_RX_CONFIG_IRQ_DST_HOST |
5997 IWN_FH_RX_CONFIG_SINGLE_FRAME |
5998 IWN_FH_RX_CONFIG_RB_TIMEOUT(0) |
5999 IWN_FH_RX_CONFIG_NRBD(IWN_RX_RING_COUNT_LOG));
6001 IWN_WRITE(sc, IWN_FH_RX_WPTR, (IWN_RX_RING_COUNT - 1) & ~7);
6003 error = iwn_nic_lock(sc);
6007 /* Initialize TX scheduler. */
6008 iwn_prph_write(sc, hal->sched_txfact_addr, 0);
6010 /* Set physical address of "keep warm" page (16-byte aligned.) */
6011 IWN_WRITE(sc, IWN_FH_KW_ADDR, sc->kw_dma.paddr >> 4);
6013 /* Initialize TX rings. */
6014 for (qid = 0; qid < hal->ntxqs; qid++) {
6015 struct iwn_tx_ring *txq = &sc->txq[qid];
6017 /* Set physical address of TX ring (256-byte aligned.) */
6018 IWN_WRITE(sc, IWN_FH_CBBC_QUEUE(qid),
6019 txq->desc_dma.paddr >> 8);
6023 /* Enable DMA channels. */
6024 for (chnl = 0; chnl < hal->ndmachnls; chnl++) {
6025 IWN_WRITE(sc, IWN_FH_TX_CONFIG(chnl),
6026 IWN_FH_TX_CONFIG_DMA_ENA |
6027 IWN_FH_TX_CONFIG_DMA_CREDIT_ENA);
6030 /* Clear "radio off" and "commands blocked" bits. */
6031 IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_RFKILL);
6032 IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_CMD_BLOCKED);
6034 /* Clear pending interrupts. */
6035 IWN_WRITE(sc, IWN_INT, 0xffffffff);
6036 /* Enable interrupt coalescing. */
6037 IWN_WRITE(sc, IWN_INT_COALESCING, 512 / 8);
6038 /* Enable interrupts. */
6039 IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask);
6041 /* _Really_ make sure "radio off" bit is cleared! */
6042 IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_RFKILL);
6043 IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_RFKILL);
6045 error = hal->load_firmware(sc);