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, 0x4236, "Intel(R) PRO/Wireless 5350" },
315 { 0x8086, 0x423A, "Intel(R) PRO/Wireless 5350" },
316 { 0x8086, 0x423B, "Intel(R) PRO/Wireless 5350" },
317 { 0x8086, 0x0083, "Intel(R) PRO/Wireless 1000" },
318 { 0x8086, 0x0084, "Intel(R) PRO/Wireless 1000" },
319 { 0x8086, 0x008D, "Intel(R) PRO/Wireless 6000" },
320 { 0x8086, 0x008E, "Intel(R) PRO/Wireless 6000" },
321 { 0x8086, 0x4238, "Intel(R) PRO/Wireless 6000" },
322 { 0x8086, 0x4239, "Intel(R) PRO/Wireless 6000" },
323 { 0x8086, 0x422B, "Intel(R) PRO/Wireless 6000" },
324 { 0x8086, 0x422C, "Intel(R) PRO/Wireless 6000" },
325 { 0x8086, 0x0086, "Intel(R) PRO/Wireless 6050" },
326 { 0x8086, 0x0087, "Intel(R) PRO/Wireless 6050" },
330 static const struct iwn_hal iwn4965_hal = {
331 iwn4965_load_firmware,
335 iwn4965_update_sched,
336 iwn4965_get_temperature,
344 iwn4965_ampdu_tx_start,
345 iwn4965_ampdu_tx_stop,
349 IWN4965_ID_BROADCAST,
352 IWN4965_FW_TEXT_MAXSZ,
353 IWN4965_FW_DATA_MAXSZ,
358 static const struct iwn_hal iwn5000_hal = {
359 iwn5000_load_firmware,
363 iwn5000_update_sched,
364 iwn5000_get_temperature,
372 iwn5000_ampdu_tx_start,
373 iwn5000_ampdu_tx_stop,
377 IWN5000_ID_BROADCAST,
380 IWN5000_FW_TEXT_MAXSZ,
381 IWN5000_FW_DATA_MAXSZ,
387 iwn_probe(device_t dev)
389 const struct iwn_ident *ident;
391 for (ident = iwn_ident_table; ident->name != NULL; ident++) {
392 if (pci_get_vendor(dev) == ident->vendor &&
393 pci_get_device(dev) == ident->device) {
394 device_set_desc(dev, ident->name);
402 iwn_attach(device_t dev)
404 struct iwn_softc *sc = (struct iwn_softc *)device_get_softc(dev);
405 struct ieee80211com *ic;
407 const struct iwn_hal *hal;
409 int i, error, result;
410 uint8_t macaddr[IEEE80211_ADDR_LEN];
415 if (bus_dma_tag_create(sc->sc_dmat,
417 BUS_SPACE_MAXADDR_32BIT,
425 device_printf(dev, "cannot allocate DMA tag\n");
432 /* prepare sysctl tree for use in sub modules */
433 sysctl_ctx_init(&sc->sc_sysctl_ctx);
434 sc->sc_sysctl_tree = SYSCTL_ADD_NODE(&sc->sc_sysctl_ctx,
435 SYSCTL_STATIC_CHILDREN(_hw),
437 device_get_nameunit(sc->sc_dev),
441 * Get the offset of the PCI Express Capability Structure in PCI
442 * Configuration Space.
444 error = pci_find_extcap(dev, PCIY_EXPRESS, &sc->sc_cap_off);
446 device_printf(dev, "PCIe capability structure not found!\n");
450 /* Clear device-specific "PCI retry timeout" register (41h). */
451 pci_write_config(dev, 0x41, 0, 1);
453 /* Hardware bug workaround. */
454 tmp = pci_read_config(dev, PCIR_COMMAND, 1);
455 if (tmp & PCIM_CMD_INTxDIS) {
456 DPRINTF(sc, IWN_DEBUG_RESET, "%s: PCIe INTx Disable set\n",
458 tmp &= ~PCIM_CMD_INTxDIS;
459 pci_write_config(dev, PCIR_COMMAND, tmp, 1);
462 /* Enable bus-mastering. */
463 pci_enable_busmaster(dev);
465 sc->mem_rid = PCIR_BAR(0);
466 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid,
468 if (sc->mem == NULL ) {
469 device_printf(dev, "could not allocate memory resources\n");
474 sc->sc_st = rman_get_bustag(sc->mem);
475 sc->sc_sh = rman_get_bushandle(sc->mem);
477 if ((result = pci_msi_count(dev)) == 1 &&
478 pci_alloc_msi(dev, &result) == 0)
480 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
481 RF_ACTIVE | RF_SHAREABLE);
482 if (sc->irq == NULL) {
483 device_printf(dev, "could not allocate interrupt resource\n");
489 callout_init(&sc->sc_timer_to);
490 TASK_INIT(&sc->sc_reinit_task, 0, iwn_hw_reset, sc );
491 TASK_INIT(&sc->sc_radioon_task, 0, iwn_radio_on, sc );
492 TASK_INIT(&sc->sc_radiooff_task, 0, iwn_radio_off, sc );
494 /* Attach Hardware Abstraction Layer. */
495 hal = iwn_hal_attach(sc);
497 error = ENXIO; /* XXX: Wrong error code? */
501 error = iwn_hw_prepare(sc);
503 device_printf(dev, "hardware not ready, error %d\n", error);
507 /* Allocate DMA memory for firmware transfers. */
508 error = iwn_alloc_fwmem(sc);
511 "could not allocate memory for firmware, error %d\n",
516 /* Allocate "Keep Warm" page. */
517 error = iwn_alloc_kw(sc);
520 "could not allocate \"Keep Warm\" page, error %d\n", error);
524 /* Allocate ICT table for 5000 Series. */
525 if (sc->hw_type != IWN_HW_REV_TYPE_4965 &&
526 (error = iwn_alloc_ict(sc)) != 0) {
528 "%s: could not allocate ICT table, error %d\n",
533 /* Allocate TX scheduler "rings". */
534 error = iwn_alloc_sched(sc);
537 "could not allocate TX scheduler rings, error %d\n",
542 /* Allocate TX rings (16 on 4965AGN, 20 on 5000). */
543 for (i = 0; i < hal->ntxqs; i++) {
544 error = iwn_alloc_tx_ring(sc, &sc->txq[i], i);
547 "could not allocate Tx ring %d, error %d\n",
553 /* Allocate RX ring. */
554 error = iwn_alloc_rx_ring(sc, &sc->rxq);
557 "could not allocate Rx ring, error %d\n", error);
561 /* Clear pending interrupts. */
562 IWN_WRITE(sc, IWN_INT, 0xffffffff);
564 /* Count the number of available chains. */
566 ((sc->txchainmask >> 2) & 1) +
567 ((sc->txchainmask >> 1) & 1) +
568 ((sc->txchainmask >> 0) & 1);
570 ((sc->rxchainmask >> 2) & 1) +
571 ((sc->rxchainmask >> 1) & 1) +
572 ((sc->rxchainmask >> 0) & 1);
574 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
576 device_printf(dev, "can not allocate ifnet structure\n");
582 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
583 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
585 /* Set device capabilities. */
587 IEEE80211_C_STA /* station mode supported */
588 | IEEE80211_C_MONITOR /* monitor mode supported */
589 | IEEE80211_C_TXPMGT /* tx power management */
590 | IEEE80211_C_SHSLOT /* short slot time supported */
592 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
593 | IEEE80211_C_BGSCAN /* background scanning */
595 | IEEE80211_C_IBSS /* ibss/adhoc mode */
597 | IEEE80211_C_WME /* WME */
600 /* XXX disable until HT channel setup works */
602 IEEE80211_HTCAP_SMPS_ENA /* SM PS mode enabled */
603 | IEEE80211_HTCAP_CHWIDTH40 /* 40MHz channel width */
604 | IEEE80211_HTCAP_SHORTGI20 /* short GI in 20MHz */
605 | IEEE80211_HTCAP_SHORTGI40 /* short GI in 40MHz */
606 | IEEE80211_HTCAP_RXSTBC_2STREAM/* 1-2 spatial streams */
607 | IEEE80211_HTCAP_MAXAMSDU_3839 /* max A-MSDU length */
608 /* s/w capabilities */
609 | IEEE80211_HTC_HT /* HT operation */
610 | IEEE80211_HTC_AMPDU /* tx A-MPDU */
611 | IEEE80211_HTC_AMSDU /* tx A-MSDU */
614 /* Set HT capabilities. */
616 #if IWN_RBUF_SIZE == 8192
617 IEEE80211_HTCAP_AMSDU7935 |
619 IEEE80211_HTCAP_CBW20_40 |
620 IEEE80211_HTCAP_SGI20 |
621 IEEE80211_HTCAP_SGI40;
622 if (sc->hw_type != IWN_HW_REV_TYPE_4965)
623 ic->ic_htcaps |= IEEE80211_HTCAP_GF;
624 if (sc->hw_type == IWN_HW_REV_TYPE_6050)
625 ic->ic_htcaps |= IEEE80211_HTCAP_SMPS_DYN;
627 ic->ic_htcaps |= IEEE80211_HTCAP_SMPS_DIS;
630 /* Read MAC address, channels, etc from EEPROM. */
631 error = iwn_read_eeprom(sc, macaddr);
633 device_printf(dev, "could not read EEPROM, error %d\n",
638 device_printf(sc->sc_dev, "MIMO %dT%dR, %.4s, address %6D\n",
639 sc->ntxchains, sc->nrxchains, sc->eeprom_domain,
643 /* Set supported HT rates. */
644 ic->ic_sup_mcs[0] = 0xff;
645 if (sc->nrxchains > 1)
646 ic->ic_sup_mcs[1] = 0xff;
647 if (sc->nrxchains > 2)
648 ic->ic_sup_mcs[2] = 0xff;
651 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
653 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
654 ifp->if_init = iwn_init;
655 ifp->if_ioctl = iwn_ioctl;
656 ifp->if_start = iwn_start;
657 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
658 ifq_set_ready(&ifp->if_snd);
660 ieee80211_ifattach(ic, macaddr);
661 ic->ic_vap_create = iwn_vap_create;
662 ic->ic_vap_delete = iwn_vap_delete;
663 ic->ic_raw_xmit = iwn_raw_xmit;
664 ic->ic_node_alloc = iwn_node_alloc;
665 ic->ic_newassoc = iwn_newassoc;
666 ic->ic_wme.wme_update = iwn_wme_update;
667 ic->ic_update_mcast = iwn_update_mcast;
668 ic->ic_scan_start = iwn_scan_start;
669 ic->ic_scan_end = iwn_scan_end;
670 ic->ic_set_channel = iwn_set_channel;
671 ic->ic_scan_curchan = iwn_scan_curchan;
672 ic->ic_scan_mindwell = iwn_scan_mindwell;
673 ic->ic_setregdomain = iwn_setregdomain;
675 ic->ic_ampdu_rx_start = iwn_ampdu_rx_start;
676 ic->ic_ampdu_rx_stop = iwn_ampdu_rx_stop;
677 ic->ic_ampdu_tx_start = iwn_ampdu_tx_start;
678 ic->ic_ampdu_tx_stop = iwn_ampdu_tx_stop;
681 iwn_radiotap_attach(sc);
682 iwn_sysctlattach(sc);
685 * Hook our interrupt after all initialization is complete.
687 error = bus_setup_intr(dev, sc->irq, INTR_MPSAFE,
688 iwn_intr, sc, &sc->sc_ih, ifp->if_serializer);
690 device_printf(dev, "could not set up interrupt, error %d\n",
695 ieee80211_announce(ic);
702 static const struct iwn_hal *
703 iwn_hal_attach(struct iwn_softc *sc)
705 sc->hw_type = (IWN_READ(sc, IWN_HW_REV) >> 4) & 0xf;
707 switch (sc->hw_type) {
708 case IWN_HW_REV_TYPE_4965:
709 sc->sc_hal = &iwn4965_hal;
710 sc->limits = &iwn4965_sensitivity_limits;
711 sc->fwname = "iwn4965fw";
712 sc->txchainmask = IWN_ANT_AB;
713 sc->rxchainmask = IWN_ANT_ABC;
715 case IWN_HW_REV_TYPE_5100:
716 sc->sc_hal = &iwn5000_hal;
717 sc->limits = &iwn5000_sensitivity_limits;
718 sc->fwname = "iwn5000fw";
719 sc->txchainmask = IWN_ANT_B;
720 sc->rxchainmask = IWN_ANT_AB;
722 case IWN_HW_REV_TYPE_5150:
723 sc->sc_hal = &iwn5000_hal;
724 sc->limits = &iwn5150_sensitivity_limits;
725 sc->fwname = "iwn5150fw";
726 sc->txchainmask = IWN_ANT_A;
727 sc->rxchainmask = IWN_ANT_AB;
729 case IWN_HW_REV_TYPE_5300:
730 case IWN_HW_REV_TYPE_5350:
731 sc->sc_hal = &iwn5000_hal;
732 sc->limits = &iwn5000_sensitivity_limits;
733 sc->fwname = "iwn5000fw";
734 sc->txchainmask = IWN_ANT_ABC;
735 sc->rxchainmask = IWN_ANT_ABC;
737 case IWN_HW_REV_TYPE_1000:
738 sc->sc_hal = &iwn5000_hal;
739 sc->limits = &iwn1000_sensitivity_limits;
740 sc->fwname = "iwn1000fw";
741 sc->txchainmask = IWN_ANT_A;
742 sc->rxchainmask = IWN_ANT_AB;
744 case IWN_HW_REV_TYPE_6000:
745 sc->sc_hal = &iwn5000_hal;
746 sc->limits = &iwn6000_sensitivity_limits;
747 sc->fwname = "iwn6000fw";
748 switch (pci_get_device(sc->sc_dev)) {
751 sc->sc_flags |= IWN_FLAG_INTERNAL_PA;
752 sc->txchainmask = IWN_ANT_BC;
753 sc->rxchainmask = IWN_ANT_BC;
756 sc->txchainmask = IWN_ANT_ABC;
757 sc->rxchainmask = IWN_ANT_ABC;
761 case IWN_HW_REV_TYPE_6050:
762 sc->sc_hal = &iwn5000_hal;
763 sc->limits = &iwn6000_sensitivity_limits;
764 sc->fwname = "iwn6000fw";
765 sc->txchainmask = IWN_ANT_AB;
766 sc->rxchainmask = IWN_ANT_AB;
769 device_printf(sc->sc_dev, "adapter type %d not supported\n",
777 * Attach the interface to 802.11 radiotap.
780 iwn_radiotap_attach(struct iwn_softc *sc)
782 struct ifnet *ifp = sc->sc_ifp;
783 struct ieee80211com *ic = ifp->if_l2com;
785 ieee80211_radiotap_attach(ic,
786 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
787 IWN_TX_RADIOTAP_PRESENT,
788 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
789 IWN_RX_RADIOTAP_PRESENT);
792 static struct ieee80211vap *
793 iwn_vap_create(struct ieee80211com *ic,
794 const char name[IFNAMSIZ], int unit, int opmode, int flags,
795 const uint8_t bssid[IEEE80211_ADDR_LEN],
796 const uint8_t mac[IEEE80211_ADDR_LEN])
799 struct ieee80211vap *vap;
801 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
803 ivp = (struct iwn_vap *) kmalloc(sizeof(struct iwn_vap),
804 M_80211_VAP, M_INTWAIT | M_ZERO);
808 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
809 vap->iv_bmissthreshold = 10; /* override default */
810 /* Override with driver methods. */
811 ivp->iv_newstate = vap->iv_newstate;
812 vap->iv_newstate = iwn_newstate;
814 ieee80211_ratectl_init(vap);
815 /* Complete setup. */
816 ieee80211_vap_attach(vap, iwn_media_change, ieee80211_media_status);
817 ic->ic_opmode = opmode;
822 iwn_vap_delete(struct ieee80211vap *vap)
824 struct iwn_vap *ivp = IWN_VAP(vap);
826 ieee80211_ratectl_deinit(vap);
827 ieee80211_vap_detach(vap);
828 kfree(ivp, M_80211_VAP);
832 iwn_cleanup(device_t dev)
834 struct iwn_softc *sc = device_get_softc(dev);
835 struct ifnet *ifp = sc->sc_ifp;
836 struct ieee80211com *ic;
842 ieee80211_draintask(ic, &sc->sc_reinit_task);
843 ieee80211_draintask(ic, &sc->sc_radioon_task);
844 ieee80211_draintask(ic, &sc->sc_radiooff_task);
847 callout_stop(&sc->sc_timer_to);
848 ieee80211_ifdetach(ic);
851 /* Free DMA resources. */
852 iwn_free_rx_ring(sc, &sc->rxq);
853 if (sc->sc_hal != NULL)
854 for (i = 0; i < sc->sc_hal->ntxqs; i++)
855 iwn_free_tx_ring(sc, &sc->txq[i]);
862 if (sc->irq != NULL) {
863 bus_teardown_intr(dev, sc->irq, sc->sc_ih);
864 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
865 if (sc->irq_rid == 1)
866 pci_release_msi(dev);
870 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
875 IWN_LOCK_DESTROY(sc);
880 iwn_detach(device_t dev)
882 struct iwn_softc *sc = (struct iwn_softc *)device_get_softc(dev);
885 bus_dma_tag_destroy(sc->sc_dmat);
890 iwn_nic_lock(struct iwn_softc *sc)
894 /* Request exclusive access to NIC. */
895 IWN_SETBITS(sc, IWN_GP_CNTRL, IWN_GP_CNTRL_MAC_ACCESS_REQ);
897 /* Spin until we actually get the lock. */
898 for (ntries = 0; ntries < 1000; ntries++) {
899 if ((IWN_READ(sc, IWN_GP_CNTRL) &
900 (IWN_GP_CNTRL_MAC_ACCESS_ENA | IWN_GP_CNTRL_SLEEP)) ==
901 IWN_GP_CNTRL_MAC_ACCESS_ENA)
909 iwn_nic_unlock(struct iwn_softc *sc)
911 IWN_CLRBITS(sc, IWN_GP_CNTRL, IWN_GP_CNTRL_MAC_ACCESS_REQ);
914 static __inline uint32_t
915 iwn_prph_read(struct iwn_softc *sc, uint32_t addr)
917 IWN_WRITE(sc, IWN_PRPH_RADDR, IWN_PRPH_DWORD | addr);
918 IWN_BARRIER_READ_WRITE(sc);
919 return IWN_READ(sc, IWN_PRPH_RDATA);
923 iwn_prph_write(struct iwn_softc *sc, uint32_t addr, uint32_t data)
925 IWN_WRITE(sc, IWN_PRPH_WADDR, IWN_PRPH_DWORD | addr);
926 IWN_BARRIER_WRITE(sc);
927 IWN_WRITE(sc, IWN_PRPH_WDATA, data);
931 iwn_prph_setbits(struct iwn_softc *sc, uint32_t addr, uint32_t mask)
933 iwn_prph_write(sc, addr, iwn_prph_read(sc, addr) | mask);
937 iwn_prph_clrbits(struct iwn_softc *sc, uint32_t addr, uint32_t mask)
939 iwn_prph_write(sc, addr, iwn_prph_read(sc, addr) & ~mask);
943 iwn_prph_write_region_4(struct iwn_softc *sc, uint32_t addr,
944 const uint32_t *data, int count)
946 for (; count > 0; count--, data++, addr += 4)
947 iwn_prph_write(sc, addr, *data);
950 static __inline uint32_t
951 iwn_mem_read(struct iwn_softc *sc, uint32_t addr)
953 IWN_WRITE(sc, IWN_MEM_RADDR, addr);
954 IWN_BARRIER_READ_WRITE(sc);
955 return IWN_READ(sc, IWN_MEM_RDATA);
959 iwn_mem_write(struct iwn_softc *sc, uint32_t addr, uint32_t data)
961 IWN_WRITE(sc, IWN_MEM_WADDR, addr);
962 IWN_BARRIER_WRITE(sc);
963 IWN_WRITE(sc, IWN_MEM_WDATA, data);
967 iwn_mem_write_2(struct iwn_softc *sc, uint32_t addr, uint16_t data)
971 tmp = iwn_mem_read(sc, addr & ~3);
973 tmp = (tmp & 0x0000ffff) | data << 16;
975 tmp = (tmp & 0xffff0000) | data;
976 iwn_mem_write(sc, addr & ~3, tmp);
980 iwn_mem_read_region_4(struct iwn_softc *sc, uint32_t addr, uint32_t *data,
983 for (; count > 0; count--, addr += 4)
984 *data++ = iwn_mem_read(sc, addr);
988 iwn_mem_set_region_4(struct iwn_softc *sc, uint32_t addr, uint32_t val,
991 for (; count > 0; count--, addr += 4)
992 iwn_mem_write(sc, addr, val);
996 iwn_eeprom_lock(struct iwn_softc *sc)
1000 for (i = 0; i < 100; i++) {
1001 /* Request exclusive access to EEPROM. */
1002 IWN_SETBITS(sc, IWN_HW_IF_CONFIG,
1003 IWN_HW_IF_CONFIG_EEPROM_LOCKED);
1005 /* Spin until we actually get the lock. */
1006 for (ntries = 0; ntries < 100; ntries++) {
1007 if (IWN_READ(sc, IWN_HW_IF_CONFIG) &
1008 IWN_HW_IF_CONFIG_EEPROM_LOCKED)
1016 static __inline void
1017 iwn_eeprom_unlock(struct iwn_softc *sc)
1019 IWN_CLRBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_EEPROM_LOCKED);
1023 * Initialize access by host to One Time Programmable ROM.
1024 * NB: This kind of ROM can be found on 1000 or 6000 Series only.
1027 iwn_init_otprom(struct iwn_softc *sc)
1029 uint16_t prev, base, next;
1032 /* Wait for clock stabilization before accessing prph. */
1033 error = iwn_clock_wait(sc);
1037 error = iwn_nic_lock(sc);
1040 iwn_prph_setbits(sc, IWN_APMG_PS, IWN_APMG_PS_RESET_REQ);
1042 iwn_prph_clrbits(sc, IWN_APMG_PS, IWN_APMG_PS_RESET_REQ);
1045 /* Set auto clock gate disable bit for HW with OTP shadow RAM. */
1046 if (sc->hw_type != IWN_HW_REV_TYPE_1000) {
1047 IWN_SETBITS(sc, IWN_DBG_LINK_PWR_MGMT,
1048 IWN_RESET_LINK_PWR_MGMT_DIS);
1050 IWN_CLRBITS(sc, IWN_EEPROM_GP, IWN_EEPROM_GP_IF_OWNER);
1051 /* Clear ECC status. */
1052 IWN_SETBITS(sc, IWN_OTP_GP,
1053 IWN_OTP_GP_ECC_CORR_STTS | IWN_OTP_GP_ECC_UNCORR_STTS);
1056 * Find the block before last block (contains the EEPROM image)
1057 * for HW without OTP shadow RAM.
1059 if (sc->hw_type == IWN_HW_REV_TYPE_1000) {
1060 /* Switch to absolute addressing mode. */
1061 IWN_CLRBITS(sc, IWN_OTP_GP, IWN_OTP_GP_RELATIVE_ACCESS);
1063 for (count = 0; count < IWN1000_OTP_NBLOCKS; count++) {
1064 error = iwn_read_prom_data(sc, base, &next, 2);
1067 if (next == 0) /* End of linked-list. */
1070 base = le16toh(next);
1072 if (count == 0 || count == IWN1000_OTP_NBLOCKS)
1074 /* Skip "next" word. */
1075 sc->prom_base = prev + 1;
1081 iwn_read_prom_data(struct iwn_softc *sc, uint32_t addr, void *data, int count)
1085 uint8_t *out = data;
1087 addr += sc->prom_base;
1088 for (; count > 0; count -= 2, addr++) {
1089 IWN_WRITE(sc, IWN_EEPROM, addr << 2);
1090 for (ntries = 0; ntries < 10; ntries++) {
1091 val = IWN_READ(sc, IWN_EEPROM);
1092 if (val & IWN_EEPROM_READ_VALID)
1097 device_printf(sc->sc_dev,
1098 "timeout reading ROM at 0x%x\n", addr);
1101 if (sc->sc_flags & IWN_FLAG_HAS_OTPROM) {
1102 /* OTPROM, check for ECC errors. */
1103 tmp = IWN_READ(sc, IWN_OTP_GP);
1104 if (tmp & IWN_OTP_GP_ECC_UNCORR_STTS) {
1105 device_printf(sc->sc_dev,
1106 "OTPROM ECC error at 0x%x\n", addr);
1109 if (tmp & IWN_OTP_GP_ECC_CORR_STTS) {
1110 /* Correctable ECC error, clear bit. */
1111 IWN_SETBITS(sc, IWN_OTP_GP,
1112 IWN_OTP_GP_ECC_CORR_STTS);
1123 iwn_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
1127 KASSERT(nsegs == 1, ("too many DMA segments, %d should be 1", nsegs));
1128 *(bus_addr_t *)arg = segs[0].ds_addr;
1132 iwn_dma_contig_alloc(struct iwn_softc *sc, struct iwn_dma_info *dma,
1133 void **kvap, bus_size_t size, bus_size_t alignment, int flags)
1140 error = bus_dma_tag_create(sc->sc_dmat, alignment,
1141 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, size,
1142 1, size, flags, &dma->tag);
1144 device_printf(sc->sc_dev,
1145 "%s: bus_dma_tag_create failed, error %d\n",
1149 error = bus_dmamem_alloc(dma->tag, (void **)&dma->vaddr,
1150 flags | BUS_DMA_ZERO, &dma->map);
1152 device_printf(sc->sc_dev,
1153 "%s: bus_dmamem_alloc failed, error %d\n", __func__, error);
1156 error = bus_dmamap_load(dma->tag, dma->map, dma->vaddr,
1157 size, iwn_dma_map_addr, &dma->paddr, flags);
1159 device_printf(sc->sc_dev,
1160 "%s: bus_dmamap_load failed, error %d\n", __func__, error);
1168 iwn_dma_contig_free(dma);
1173 iwn_dma_contig_free(struct iwn_dma_info *dma)
1175 if (dma->tag != NULL) {
1176 if (dma->map != NULL) {
1177 if (dma->paddr == 0) {
1178 bus_dmamap_sync(dma->tag, dma->map,
1179 BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
1180 bus_dmamap_unload(dma->tag, dma->map);
1182 bus_dmamem_free(dma->tag, &dma->vaddr, dma->map);
1184 bus_dma_tag_destroy(dma->tag);
1189 iwn_alloc_sched(struct iwn_softc *sc)
1191 /* TX scheduler rings must be aligned on a 1KB boundary. */
1192 return iwn_dma_contig_alloc(sc, &sc->sched_dma,
1193 (void **)&sc->sched, sc->sc_hal->schedsz, 1024, BUS_DMA_NOWAIT);
1197 iwn_free_sched(struct iwn_softc *sc)
1199 iwn_dma_contig_free(&sc->sched_dma);
1203 iwn_alloc_kw(struct iwn_softc *sc)
1205 /* "Keep Warm" page must be aligned on a 4KB boundary. */
1206 return iwn_dma_contig_alloc(sc, &sc->kw_dma, NULL, 4096, 4096,
1211 iwn_free_kw(struct iwn_softc *sc)
1213 iwn_dma_contig_free(&sc->kw_dma);
1217 iwn_alloc_ict(struct iwn_softc *sc)
1219 /* ICT table must be aligned on a 4KB boundary. */
1220 return iwn_dma_contig_alloc(sc, &sc->ict_dma,
1221 (void **)&sc->ict, IWN_ICT_SIZE, 4096, BUS_DMA_NOWAIT);
1225 iwn_free_ict(struct iwn_softc *sc)
1227 iwn_dma_contig_free(&sc->ict_dma);
1231 iwn_alloc_fwmem(struct iwn_softc *sc)
1233 /* Must be aligned on a 16-byte boundary. */
1234 return iwn_dma_contig_alloc(sc, &sc->fw_dma, NULL,
1235 sc->sc_hal->fwsz, 16, BUS_DMA_NOWAIT);
1239 iwn_free_fwmem(struct iwn_softc *sc)
1241 iwn_dma_contig_free(&sc->fw_dma);
1245 iwn_alloc_rx_ring(struct iwn_softc *sc, struct iwn_rx_ring *ring)
1252 /* Allocate RX descriptors (256-byte aligned). */
1253 size = IWN_RX_RING_COUNT * sizeof (uint32_t);
1254 error = iwn_dma_contig_alloc(sc, &ring->desc_dma,
1255 (void **)&ring->desc, size, 256, BUS_DMA_NOWAIT);
1257 device_printf(sc->sc_dev,
1258 "%s: could not allocate Rx ring DMA memory, error %d\n",
1263 error = bus_dma_tag_create(sc->sc_dmat, 1, 0,
1264 BUS_SPACE_MAXADDR_32BIT,
1265 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1,
1266 MCLBYTES, BUS_DMA_NOWAIT, &ring->data_dmat);
1268 device_printf(sc->sc_dev,
1269 "%s: bus_dma_tag_create_failed, error %d\n",
1274 /* Allocate RX status area (16-byte aligned). */
1275 error = iwn_dma_contig_alloc(sc, &ring->stat_dma,
1276 (void **)&ring->stat, sizeof (struct iwn_rx_status),
1277 16, BUS_DMA_NOWAIT);
1279 device_printf(sc->sc_dev,
1280 "%s: could not allocate Rx status DMA memory, error %d\n",
1286 * Allocate and map RX buffers.
1288 for (i = 0; i < IWN_RX_RING_COUNT; i++) {
1289 struct iwn_rx_data *data = &ring->data[i];
1292 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
1294 device_printf(sc->sc_dev,
1295 "%s: bus_dmamap_create failed, error %d\n",
1300 data->m = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
1301 if (data->m == NULL) {
1302 device_printf(sc->sc_dev,
1303 "%s: could not allocate rx mbuf\n", __func__);
1309 error = bus_dmamap_load(ring->data_dmat, data->map,
1310 mtod(data->m, caddr_t), MCLBYTES,
1311 iwn_dma_map_addr, &paddr, BUS_DMA_NOWAIT);
1312 if (error != 0 && error != EFBIG) {
1313 device_printf(sc->sc_dev,
1314 "%s: bus_dmamap_load failed, error %d\n",
1317 error = ENOMEM; /* XXX unique code */
1320 bus_dmamap_sync(ring->data_dmat, data->map,
1321 BUS_DMASYNC_PREWRITE);
1323 /* Set physical address of RX buffer (256-byte aligned). */
1324 ring->desc[i] = htole32(paddr >> 8);
1326 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
1327 BUS_DMASYNC_PREWRITE);
1330 iwn_free_rx_ring(sc, ring);
1335 iwn_reset_rx_ring(struct iwn_softc *sc, struct iwn_rx_ring *ring)
1339 if (iwn_nic_lock(sc) == 0) {
1340 IWN_WRITE(sc, IWN_FH_RX_CONFIG, 0);
1341 for (ntries = 0; ntries < 1000; ntries++) {
1342 if (IWN_READ(sc, IWN_FH_RX_STATUS) &
1343 IWN_FH_RX_STATUS_IDLE)
1350 DPRINTF(sc, IWN_DEBUG_ANY, "%s\n",
1351 "timeout resetting Rx ring");
1355 sc->last_rx_valid = 0;
1359 iwn_free_rx_ring(struct iwn_softc *sc, struct iwn_rx_ring *ring)
1363 iwn_dma_contig_free(&ring->desc_dma);
1364 iwn_dma_contig_free(&ring->stat_dma);
1366 for (i = 0; i < IWN_RX_RING_COUNT; i++) {
1367 struct iwn_rx_data *data = &ring->data[i];
1369 if (data->m != NULL) {
1370 bus_dmamap_sync(ring->data_dmat, data->map,
1371 BUS_DMASYNC_POSTREAD);
1372 bus_dmamap_unload(ring->data_dmat, data->map);
1375 if (data->map != NULL)
1376 bus_dmamap_destroy(ring->data_dmat, data->map);
1381 iwn_alloc_tx_ring(struct iwn_softc *sc, struct iwn_tx_ring *ring, int qid)
1391 /* Allocate TX descriptors (256-byte aligned.) */
1392 size = IWN_TX_RING_COUNT * sizeof(struct iwn_tx_desc);
1393 error = iwn_dma_contig_alloc(sc, &ring->desc_dma,
1394 (void **)&ring->desc, size, 256, BUS_DMA_NOWAIT);
1396 device_printf(sc->sc_dev,
1397 "%s: could not allocate TX ring DMA memory, error %d\n",
1403 * We only use rings 0 through 4 (4 EDCA + cmd) so there is no need
1404 * to allocate commands space for other rings.
1409 size = IWN_TX_RING_COUNT * sizeof(struct iwn_tx_cmd);
1410 error = iwn_dma_contig_alloc(sc, &ring->cmd_dma,
1411 (void **)&ring->cmd, size, 4, BUS_DMA_NOWAIT);
1413 device_printf(sc->sc_dev,
1414 "%s: could not allocate TX cmd DMA memory, error %d\n",
1419 error = bus_dma_tag_create(sc->sc_dmat, 1, 0,
1420 BUS_SPACE_MAXADDR_32BIT,
1421 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, IWN_MAX_SCATTER - 1,
1422 MCLBYTES, BUS_DMA_NOWAIT, &ring->data_dmat);
1424 device_printf(sc->sc_dev,
1425 "%s: bus_dma_tag_create_failed, error %d\n",
1430 paddr = ring->cmd_dma.paddr;
1431 for (i = 0; i < IWN_TX_RING_COUNT; i++) {
1432 struct iwn_tx_data *data = &ring->data[i];
1434 data->cmd_paddr = paddr;
1435 data->scratch_paddr = paddr + 12;
1436 paddr += sizeof (struct iwn_tx_cmd);
1438 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
1440 device_printf(sc->sc_dev,
1441 "%s: bus_dmamap_create failed, error %d\n",
1445 bus_dmamap_sync(ring->data_dmat, data->map,
1446 BUS_DMASYNC_PREWRITE);
1450 iwn_free_tx_ring(sc, ring);
1455 iwn_reset_tx_ring(struct iwn_softc *sc, struct iwn_tx_ring *ring)
1459 for (i = 0; i < IWN_TX_RING_COUNT; i++) {
1460 struct iwn_tx_data *data = &ring->data[i];
1462 if (data->m != NULL) {
1463 bus_dmamap_unload(ring->data_dmat, data->map);
1468 /* Clear TX descriptors. */
1469 memset(ring->desc, 0, ring->desc_dma.size);
1470 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
1471 BUS_DMASYNC_PREWRITE);
1472 sc->qfullmsk &= ~(1 << ring->qid);
1478 iwn_free_tx_ring(struct iwn_softc *sc, struct iwn_tx_ring *ring)
1482 iwn_dma_contig_free(&ring->desc_dma);
1483 iwn_dma_contig_free(&ring->cmd_dma);
1485 for (i = 0; i < IWN_TX_RING_COUNT; i++) {
1486 struct iwn_tx_data *data = &ring->data[i];
1488 if (data->m != NULL) {
1489 bus_dmamap_sync(ring->data_dmat, data->map,
1490 BUS_DMASYNC_POSTWRITE);
1491 bus_dmamap_unload(ring->data_dmat, data->map);
1494 if (data->map != NULL)
1495 bus_dmamap_destroy(ring->data_dmat, data->map);
1500 iwn5000_ict_reset(struct iwn_softc *sc)
1502 /* Disable interrupts. */
1503 IWN_WRITE(sc, IWN_INT_MASK, 0);
1505 /* Reset ICT table. */
1506 memset(sc->ict, 0, IWN_ICT_SIZE);
1509 /* Set physical address of ICT table (4KB aligned.) */
1510 DPRINTF(sc, IWN_DEBUG_RESET, "%s: enabling ICT\n", __func__);
1511 IWN_WRITE(sc, IWN_DRAM_INT_TBL, IWN_DRAM_INT_TBL_ENABLE |
1512 IWN_DRAM_INT_TBL_WRAP_CHECK | sc->ict_dma.paddr >> 12);
1514 /* Enable periodic RX interrupt. */
1515 sc->int_mask |= IWN_INT_RX_PERIODIC;
1516 /* Switch to ICT interrupt mode in driver. */
1517 sc->sc_flags |= IWN_FLAG_USE_ICT;
1519 /* Re-enable interrupts. */
1520 IWN_WRITE(sc, IWN_INT, 0xffffffff);
1521 IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask);
1525 iwn_read_eeprom(struct iwn_softc *sc, uint8_t macaddr[IEEE80211_ADDR_LEN])
1527 const struct iwn_hal *hal = sc->sc_hal;
1531 /* Check whether adapter has an EEPROM or an OTPROM. */
1532 if (sc->hw_type >= IWN_HW_REV_TYPE_1000 &&
1533 (IWN_READ(sc, IWN_OTP_GP) & IWN_OTP_GP_DEV_SEL_OTP))
1534 sc->sc_flags |= IWN_FLAG_HAS_OTPROM;
1535 DPRINTF(sc, IWN_DEBUG_RESET, "%s found\n",
1536 (sc->sc_flags & IWN_FLAG_HAS_OTPROM) ? "OTPROM" : "EEPROM");
1538 /* Adapter has to be powered on for EEPROM access to work. */
1539 error = iwn_apm_init(sc);
1541 device_printf(sc->sc_dev,
1542 "%s: could not power ON adapter, error %d\n",
1547 if ((IWN_READ(sc, IWN_EEPROM_GP) & 0x7) == 0) {
1548 device_printf(sc->sc_dev, "%s: bad ROM signature\n", __func__);
1551 error = iwn_eeprom_lock(sc);
1553 device_printf(sc->sc_dev,
1554 "%s: could not lock ROM, error %d\n",
1559 if (sc->sc_flags & IWN_FLAG_HAS_OTPROM) {
1560 error = iwn_init_otprom(sc);
1562 device_printf(sc->sc_dev,
1563 "%s: could not initialize OTPROM, error %d\n",
1569 iwn_read_prom_data(sc, IWN_EEPROM_RFCFG, &val, 2);
1570 sc->rfcfg = le16toh(val);
1571 DPRINTF(sc, IWN_DEBUG_RESET, "radio config=0x%04x\n", sc->rfcfg);
1573 /* Read MAC address. */
1574 iwn_read_prom_data(sc, IWN_EEPROM_MAC, macaddr, 6);
1576 /* Read adapter-specific information from EEPROM. */
1577 hal->read_eeprom(sc);
1579 iwn_apm_stop(sc); /* Power OFF adapter. */
1581 iwn_eeprom_unlock(sc);
1586 iwn4965_read_eeprom(struct iwn_softc *sc)
1592 /* Read regulatory domain (4 ASCII characters.) */
1593 iwn_read_prom_data(sc, IWN4965_EEPROM_DOMAIN, sc->eeprom_domain, 4);
1595 /* Read the list of authorized channels (20MHz ones only.) */
1596 for (i = 0; i < 5; i++) {
1597 addr = iwn4965_regulatory_bands[i];
1598 iwn_read_eeprom_channels(sc, i, addr);
1601 /* Read maximum allowed TX power for 2GHz and 5GHz bands. */
1602 iwn_read_prom_data(sc, IWN4965_EEPROM_MAXPOW, &val, 2);
1603 sc->maxpwr2GHz = val & 0xff;
1604 sc->maxpwr5GHz = val >> 8;
1605 /* Check that EEPROM values are within valid range. */
1606 if (sc->maxpwr5GHz < 20 || sc->maxpwr5GHz > 50)
1607 sc->maxpwr5GHz = 38;
1608 if (sc->maxpwr2GHz < 20 || sc->maxpwr2GHz > 50)
1609 sc->maxpwr2GHz = 38;
1610 DPRINTF(sc, IWN_DEBUG_RESET, "maxpwr 2GHz=%d 5GHz=%d\n",
1611 sc->maxpwr2GHz, sc->maxpwr5GHz);
1613 /* Read samples for each TX power group. */
1614 iwn_read_prom_data(sc, IWN4965_EEPROM_BANDS, sc->bands,
1617 /* Read voltage at which samples were taken. */
1618 iwn_read_prom_data(sc, IWN4965_EEPROM_VOLTAGE, &val, 2);
1619 sc->eeprom_voltage = (int16_t)le16toh(val);
1620 DPRINTF(sc, IWN_DEBUG_RESET, "voltage=%d (in 0.3V)\n",
1621 sc->eeprom_voltage);
1624 /* Print samples. */
1625 if (sc->sc_debug & IWN_DEBUG_ANY) {
1626 for (i = 0; i < IWN_NBANDS; i++)
1627 iwn4965_print_power_group(sc, i);
1634 iwn4965_print_power_group(struct iwn_softc *sc, int i)
1636 struct iwn4965_eeprom_band *band = &sc->bands[i];
1637 struct iwn4965_eeprom_chan_samples *chans = band->chans;
1640 kprintf("===band %d===\n", i);
1641 kprintf("chan lo=%d, chan hi=%d\n", band->lo, band->hi);
1642 kprintf("chan1 num=%d\n", chans[0].num);
1643 for (c = 0; c < 2; c++) {
1644 for (j = 0; j < IWN_NSAMPLES; j++) {
1645 kprintf("chain %d, sample %d: temp=%d gain=%d "
1646 "power=%d pa_det=%d\n", c, j,
1647 chans[0].samples[c][j].temp,
1648 chans[0].samples[c][j].gain,
1649 chans[0].samples[c][j].power,
1650 chans[0].samples[c][j].pa_det);
1653 kprintf("chan2 num=%d\n", chans[1].num);
1654 for (c = 0; c < 2; c++) {
1655 for (j = 0; j < IWN_NSAMPLES; j++) {
1656 kprintf("chain %d, sample %d: temp=%d gain=%d "
1657 "power=%d pa_det=%d\n", c, j,
1658 chans[1].samples[c][j].temp,
1659 chans[1].samples[c][j].gain,
1660 chans[1].samples[c][j].power,
1661 chans[1].samples[c][j].pa_det);
1668 iwn5000_read_eeprom(struct iwn_softc *sc)
1670 struct iwn5000_eeprom_calib_hdr hdr;
1672 uint32_t addr, base;
1676 /* Read regulatory domain (4 ASCII characters.) */
1677 iwn_read_prom_data(sc, IWN5000_EEPROM_REG, &val, 2);
1678 base = le16toh(val);
1679 iwn_read_prom_data(sc, base + IWN5000_EEPROM_DOMAIN,
1680 sc->eeprom_domain, 4);
1682 /* Read the list of authorized channels (20MHz ones only.) */
1683 for (i = 0; i < 5; i++) {
1684 addr = base + iwn5000_regulatory_bands[i];
1685 iwn_read_eeprom_channels(sc, i, addr);
1688 /* Read enhanced TX power information for 6000 Series. */
1689 if (sc->hw_type >= IWN_HW_REV_TYPE_6000)
1690 iwn_read_eeprom_enhinfo(sc);
1692 iwn_read_prom_data(sc, IWN5000_EEPROM_CAL, &val, 2);
1693 base = le16toh(val);
1694 iwn_read_prom_data(sc, base, &hdr, sizeof hdr);
1695 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
1696 "%s: calib version=%u pa type=%u voltage=%u\n",
1697 __func__, hdr.version, hdr.pa_type, le16toh(hdr.volt));
1698 sc->calib_ver = hdr.version;
1700 if (sc->hw_type == IWN_HW_REV_TYPE_5150) {
1701 /* Compute temperature offset. */
1702 iwn_read_prom_data(sc, base + IWN5000_EEPROM_TEMP, &val, 2);
1703 temp = le16toh(val);
1704 iwn_read_prom_data(sc, base + IWN5000_EEPROM_VOLT, &val, 2);
1705 volt = le16toh(val);
1706 sc->temp_off = temp - (volt / -5);
1707 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "temp=%d volt=%d offset=%dK\n",
1708 temp, volt, sc->temp_off);
1710 /* Read crystal calibration. */
1711 iwn_read_prom_data(sc, base + IWN5000_EEPROM_CRYSTAL,
1712 &sc->eeprom_crystal, sizeof (uint32_t));
1713 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "crystal calibration 0x%08x\n",
1714 le32toh(sc->eeprom_crystal));
1719 * Translate EEPROM flags to net80211.
1722 iwn_eeprom_channel_flags(struct iwn_eeprom_chan *channel)
1727 if ((channel->flags & IWN_EEPROM_CHAN_ACTIVE) == 0)
1728 nflags |= IEEE80211_CHAN_PASSIVE;
1729 if ((channel->flags & IWN_EEPROM_CHAN_IBSS) == 0)
1730 nflags |= IEEE80211_CHAN_NOADHOC;
1731 if (channel->flags & IWN_EEPROM_CHAN_RADAR) {
1732 nflags |= IEEE80211_CHAN_DFS;
1733 /* XXX apparently IBSS may still be marked */
1734 nflags |= IEEE80211_CHAN_NOADHOC;
1741 iwn_read_eeprom_band(struct iwn_softc *sc, int n)
1743 struct ifnet *ifp = sc->sc_ifp;
1744 struct ieee80211com *ic = ifp->if_l2com;
1745 struct iwn_eeprom_chan *channels = sc->eeprom_channels[n];
1746 const struct iwn_chan_band *band = &iwn_bands[n];
1747 struct ieee80211_channel *c;
1748 int i, chan, nflags;
1750 for (i = 0; i < band->nchan; i++) {
1751 if (!(channels[i].flags & IWN_EEPROM_CHAN_VALID)) {
1752 DPRINTF(sc, IWN_DEBUG_RESET,
1753 "skip chan %d flags 0x%x maxpwr %d\n",
1754 band->chan[i], channels[i].flags,
1755 channels[i].maxpwr);
1758 chan = band->chan[i];
1759 nflags = iwn_eeprom_channel_flags(&channels[i]);
1761 DPRINTF(sc, IWN_DEBUG_RESET,
1762 "add chan %d flags 0x%x maxpwr %d\n",
1763 chan, channels[i].flags, channels[i].maxpwr);
1765 c = &ic->ic_channels[ic->ic_nchans++];
1767 c->ic_maxregpower = channels[i].maxpwr;
1768 c->ic_maxpower = 2*c->ic_maxregpower;
1770 /* Save maximum allowed TX power for this channel. */
1771 sc->maxpwr[chan] = channels[i].maxpwr;
1773 if (n == 0) { /* 2GHz band */
1774 c->ic_freq = ieee80211_ieee2mhz(chan,
1777 /* G =>'s B is supported */
1778 c->ic_flags = IEEE80211_CHAN_B | nflags;
1780 c = &ic->ic_channels[ic->ic_nchans++];
1782 c->ic_flags = IEEE80211_CHAN_G | nflags;
1783 } else { /* 5GHz band */
1784 c->ic_freq = ieee80211_ieee2mhz(chan,
1786 c->ic_flags = IEEE80211_CHAN_A | nflags;
1787 sc->sc_flags |= IWN_FLAG_HAS_5GHZ;
1790 /* XXX no constraints on using HT20 */
1791 /* add HT20, HT40 added separately */
1792 c = &ic->ic_channels[ic->ic_nchans++];
1794 c->ic_flags |= IEEE80211_CHAN_HT20;
1795 /* XXX NARROW =>'s 1/2 and 1/4 width? */
1802 iwn_read_eeprom_ht40(struct iwn_softc *sc, int n)
1804 struct ifnet *ifp = sc->sc_ifp;
1805 struct ieee80211com *ic = ifp->if_l2com;
1806 struct iwn_eeprom_chan *channels = sc->eeprom_channels[n];
1807 const struct iwn_chan_band *band = &iwn_bands[n];
1808 struct ieee80211_channel *c, *cent, *extc;
1811 for (i = 0; i < band->nchan; i++) {
1812 if (!(channels[i].flags & IWN_EEPROM_CHAN_VALID) ||
1813 !(channels[i].flags & IWN_EEPROM_CHAN_WIDE)) {
1814 DPRINTF(sc, IWN_DEBUG_RESET,
1815 "skip chan %d flags 0x%x maxpwr %d\n",
1816 band->chan[i], channels[i].flags,
1817 channels[i].maxpwr);
1821 * Each entry defines an HT40 channel pair; find the
1822 * center channel, then the extension channel above.
1824 cent = ieee80211_find_channel_byieee(ic, band->chan[i],
1825 band->flags & ~IEEE80211_CHAN_HT);
1826 if (cent == NULL) { /* XXX shouldn't happen */
1827 device_printf(sc->sc_dev,
1828 "%s: no entry for channel %d\n",
1829 __func__, band->chan[i]);
1832 extc = ieee80211_find_channel(ic, cent->ic_freq+20,
1833 band->flags & ~IEEE80211_CHAN_HT);
1835 DPRINTF(sc, IWN_DEBUG_RESET,
1836 "skip chan %d, extension channel not found\n",
1841 DPRINTF(sc, IWN_DEBUG_RESET,
1842 "add ht40 chan %d flags 0x%x maxpwr %d\n",
1843 band->chan[i], channels[i].flags, channels[i].maxpwr);
1845 c = &ic->ic_channels[ic->ic_nchans++];
1847 c->ic_extieee = extc->ic_ieee;
1848 c->ic_flags &= ~IEEE80211_CHAN_HT;
1849 c->ic_flags |= IEEE80211_CHAN_HT40U;
1850 c = &ic->ic_channels[ic->ic_nchans++];
1852 c->ic_extieee = cent->ic_ieee;
1853 c->ic_flags &= ~IEEE80211_CHAN_HT;
1854 c->ic_flags |= IEEE80211_CHAN_HT40D;
1860 iwn_read_eeprom_channels(struct iwn_softc *sc, int n, uint32_t addr)
1862 struct ifnet *ifp = sc->sc_ifp;
1863 struct ieee80211com *ic = ifp->if_l2com;
1865 iwn_read_prom_data(sc, addr, &sc->eeprom_channels[n],
1866 iwn_bands[n].nchan * sizeof (struct iwn_eeprom_chan));
1869 iwn_read_eeprom_band(sc, n);
1872 iwn_read_eeprom_ht40(sc, n);
1874 ieee80211_sort_channels(ic->ic_channels, ic->ic_nchans);
1877 #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
1880 iwn_read_eeprom_enhinfo(struct iwn_softc *sc)
1882 struct iwn_eeprom_enhinfo enhinfo[35];
1887 iwn_read_prom_data(sc, IWN5000_EEPROM_REG, &val, 2);
1888 base = le16toh(val);
1889 iwn_read_prom_data(sc, base + IWN6000_EEPROM_ENHINFO,
1890 enhinfo, sizeof enhinfo);
1892 memset(sc->enh_maxpwr, 0, sizeof sc->enh_maxpwr);
1893 for (i = 0; i < nitems(enhinfo); i++) {
1894 if (enhinfo[i].chan == 0 || enhinfo[i].reserved != 0)
1895 continue; /* Skip invalid entries. */
1898 if (sc->txchainmask & IWN_ANT_A)
1899 maxpwr = MAX(maxpwr, enhinfo[i].chain[0]);
1900 if (sc->txchainmask & IWN_ANT_B)
1901 maxpwr = MAX(maxpwr, enhinfo[i].chain[1]);
1902 if (sc->txchainmask & IWN_ANT_C)
1903 maxpwr = MAX(maxpwr, enhinfo[i].chain[2]);
1904 if (sc->ntxchains == 2)
1905 maxpwr = MAX(maxpwr, enhinfo[i].mimo2);
1906 else if (sc->ntxchains == 3)
1907 maxpwr = MAX(maxpwr, enhinfo[i].mimo3);
1908 maxpwr /= 2; /* Convert half-dBm to dBm. */
1910 DPRINTF(sc, IWN_DEBUG_RESET, "enhinfo %d, maxpwr=%d\n", i,
1912 sc->enh_maxpwr[i] = maxpwr;
1916 static struct ieee80211_node *
1917 iwn_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN])
1919 return kmalloc(sizeof (struct iwn_node), M_80211_NODE,M_INTWAIT | M_ZERO);
1923 iwn_newassoc(struct ieee80211_node *ni, int isnew)
1927 ieee80211_ratectl_node_deinit(ni);
1930 ieee80211_ratectl_node_init(ni);
1934 iwn_media_change(struct ifnet *ifp)
1936 int error = ieee80211_media_change(ifp);
1937 /* NB: only the fixed rate can change and that doesn't need a reset */
1938 return (error == ENETRESET ? 0 : error);
1942 iwn_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
1944 struct iwn_vap *ivp = IWN_VAP(vap);
1945 struct ieee80211com *ic = vap->iv_ic;
1946 struct iwn_softc *sc = ic->ic_ifp->if_softc;
1949 DPRINTF(sc, IWN_DEBUG_STATE, "%s: %s -> %s\n", __func__,
1950 ieee80211_state_name[vap->iv_state],
1951 ieee80211_state_name[nstate]);
1953 IEEE80211_UNLOCK(ic);
1955 callout_stop(&sc->sc_timer_to);
1957 if (nstate == IEEE80211_S_AUTH && vap->iv_state != IEEE80211_S_AUTH) {
1958 /* !AUTH -> AUTH requires adapter config */
1959 /* Reset state to handle reassociations correctly. */
1960 sc->rxon.associd = 0;
1961 sc->rxon.filter &= ~htole32(IWN_FILTER_BSS);
1962 iwn_calib_reset(sc);
1963 error = iwn_auth(sc, vap);
1965 if (nstate == IEEE80211_S_RUN && vap->iv_state != IEEE80211_S_RUN) {
1967 * !RUN -> RUN requires setting the association id
1968 * which is done with a firmware cmd. We also defer
1969 * starting the timers until that work is done.
1971 error = iwn_run(sc, vap);
1973 if (nstate == IEEE80211_S_RUN) {
1975 * RUN -> RUN transition; just restart the timers.
1977 iwn_calib_reset(sc);
1981 return ivp->iv_newstate(vap, nstate, arg);
1985 * Process an RX_PHY firmware notification. This is usually immediately
1986 * followed by an MPDU_RX_DONE notification.
1989 iwn_rx_phy(struct iwn_softc *sc, struct iwn_rx_desc *desc,
1990 struct iwn_rx_data *data)
1992 struct iwn_rx_stat *stat = (struct iwn_rx_stat *)(desc + 1);
1994 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: received PHY stats\n", __func__);
1995 bus_dmamap_sync(sc->rxq.data_dmat, data->map, BUS_DMASYNC_POSTREAD);
1997 /* Save RX statistics, they will be used on MPDU_RX_DONE. */
1998 memcpy(&sc->last_rx_stat, stat, sizeof (*stat));
1999 sc->last_rx_valid = 1;
2003 iwn_timer_timeout(void *arg)
2005 struct iwn_softc *sc = arg;
2010 if (sc->calib_cnt && --sc->calib_cnt == 0) {
2011 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s\n",
2012 "send statistics request");
2013 (void) iwn_cmd(sc, IWN_CMD_GET_STATISTICS, &flags,
2015 sc->calib_cnt = 60; /* do calibration every 60s */
2017 iwn_watchdog(sc); /* NB: piggyback tx watchdog */
2018 callout_reset(&sc->sc_timer_to, hz, iwn_timer_timeout, sc);
2023 iwn_calib_reset(struct iwn_softc *sc)
2025 callout_reset(&sc->sc_timer_to, hz, iwn_timer_timeout, sc);
2026 sc->calib_cnt = 60; /* do calibration every 60s */
2030 * Process an RX_DONE (4965AGN only) or MPDU_RX_DONE firmware notification.
2031 * Each MPDU_RX_DONE notification must be preceded by an RX_PHY one.
2034 iwn_rx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc,
2035 struct iwn_rx_data *data)
2037 const struct iwn_hal *hal = sc->sc_hal;
2038 struct ifnet *ifp = sc->sc_ifp;
2039 struct ieee80211com *ic = ifp->if_l2com;
2040 struct iwn_rx_ring *ring = &sc->rxq;
2041 struct ieee80211_frame *wh;
2042 struct ieee80211_node *ni;
2043 struct mbuf *m, *m1;
2044 struct iwn_rx_stat *stat;
2048 int error, len, rssi, nf;
2050 if (desc->type == IWN_MPDU_RX_DONE) {
2051 /* Check for prior RX_PHY notification. */
2052 if (!sc->last_rx_valid) {
2053 DPRINTF(sc, IWN_DEBUG_ANY,
2054 "%s: missing RX_PHY\n", __func__);
2058 sc->last_rx_valid = 0;
2059 stat = &sc->last_rx_stat;
2061 stat = (struct iwn_rx_stat *)(desc + 1);
2063 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTREAD);
2065 if (stat->cfg_phy_len > IWN_STAT_MAXLEN) {
2066 device_printf(sc->sc_dev,
2067 "%s: invalid rx statistic header, len %d\n",
2068 __func__, stat->cfg_phy_len);
2072 if (desc->type == IWN_MPDU_RX_DONE) {
2073 struct iwn_rx_mpdu *mpdu = (struct iwn_rx_mpdu *)(desc + 1);
2074 head = (caddr_t)(mpdu + 1);
2075 len = le16toh(mpdu->len);
2077 head = (caddr_t)(stat + 1) + stat->cfg_phy_len;
2078 len = le16toh(stat->len);
2081 flags = le32toh(*(uint32_t *)(head + len));
2083 /* Discard frames with a bad FCS early. */
2084 if ((flags & IWN_RX_NOERROR) != IWN_RX_NOERROR) {
2085 DPRINTF(sc, IWN_DEBUG_RECV, "%s: rx flags error %x\n",
2090 /* Discard frames that are too short. */
2091 if (len < sizeof (*wh)) {
2092 DPRINTF(sc, IWN_DEBUG_RECV, "%s: frame too short: %d\n",
2098 /* XXX don't need mbuf, just dma buffer */
2099 m1 = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
2101 DPRINTF(sc, IWN_DEBUG_ANY, "%s: no mbuf to restock ring\n",
2106 bus_dmamap_unload(ring->data_dmat, data->map);
2108 error = bus_dmamap_load(ring->data_dmat, data->map,
2109 mtod(m1, caddr_t), MCLBYTES,
2110 iwn_dma_map_addr, &paddr, BUS_DMA_NOWAIT);
2111 if (error != 0 && error != EFBIG) {
2112 device_printf(sc->sc_dev,
2113 "%s: bus_dmamap_load failed, error %d\n", __func__, error);
2121 /* Update RX descriptor. */
2122 ring->desc[ring->cur] = htole32(paddr >> 8);
2123 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
2124 BUS_DMASYNC_PREWRITE);
2126 /* Finalize mbuf. */
2127 m->m_pkthdr.rcvif = ifp;
2129 m->m_pkthdr.len = m->m_len = len;
2131 rssi = hal->get_rssi(sc, stat);
2133 /* Grab a reference to the source node. */
2134 wh = mtod(m, struct ieee80211_frame *);
2135 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh);
2136 nf = (ni != NULL && ni->ni_vap->iv_state == IEEE80211_S_RUN &&
2137 (ic->ic_flags & IEEE80211_F_SCAN) == 0) ? sc->noise : -95;
2139 if (ieee80211_radiotap_active(ic)) {
2140 struct iwn_rx_radiotap_header *tap = &sc->sc_rxtap;
2142 tap->wr_tsft = htole64(stat->tstamp);
2144 if (stat->flags & htole16(IWN_STAT_FLAG_SHPREAMBLE))
2145 tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
2146 switch (stat->rate) {
2148 case 10: tap->wr_rate = 2; break;
2149 case 20: tap->wr_rate = 4; break;
2150 case 55: tap->wr_rate = 11; break;
2151 case 110: tap->wr_rate = 22; break;
2153 case 0xd: tap->wr_rate = 12; break;
2154 case 0xf: tap->wr_rate = 18; break;
2155 case 0x5: tap->wr_rate = 24; break;
2156 case 0x7: tap->wr_rate = 36; break;
2157 case 0x9: tap->wr_rate = 48; break;
2158 case 0xb: tap->wr_rate = 72; break;
2159 case 0x1: tap->wr_rate = 96; break;
2160 case 0x3: tap->wr_rate = 108; break;
2161 /* Unknown rate: should not happen. */
2162 default: tap->wr_rate = 0;
2164 tap->wr_dbm_antsignal = rssi;
2165 tap->wr_dbm_antnoise = nf;
2170 /* Send the frame to the 802.11 layer. */
2172 (void) ieee80211_input(ni, m, rssi - nf, nf);
2173 /* Node is no longer needed. */
2174 ieee80211_free_node(ni);
2176 (void) ieee80211_input_all(ic, m, rssi - nf, nf);
2182 /* Process an incoming Compressed BlockAck. */
2184 iwn_rx_compressed_ba(struct iwn_softc *sc, struct iwn_rx_desc *desc,
2185 struct iwn_rx_data *data)
2187 struct iwn_compressed_ba *ba = (struct iwn_compressed_ba *)(desc + 1);
2188 struct iwn_tx_ring *txq;
2190 txq = &sc->txq[letoh16(ba->qid)];
2196 * Process a CALIBRATION_RESULT notification sent by the initialization
2197 * firmware on response to a CMD_CALIB_CONFIG command (5000 only.)
2200 iwn5000_rx_calib_results(struct iwn_softc *sc, struct iwn_rx_desc *desc,
2201 struct iwn_rx_data *data)
2203 struct iwn_phy_calib *calib = (struct iwn_phy_calib *)(desc + 1);
2206 /* Runtime firmware should not send such a notification. */
2207 if (sc->sc_flags & IWN_FLAG_CALIB_DONE)
2210 bus_dmamap_sync(sc->rxq.data_dmat, data->map, BUS_DMASYNC_POSTREAD);
2211 len = (le32toh(desc->len) & 0x3fff) - 4;
2213 switch (calib->code) {
2214 case IWN5000_PHY_CALIB_DC:
2215 if (sc->hw_type == IWN_HW_REV_TYPE_5150 ||
2216 sc->hw_type == IWN_HW_REV_TYPE_6050)
2219 case IWN5000_PHY_CALIB_LO:
2222 case IWN5000_PHY_CALIB_TX_IQ:
2225 case IWN5000_PHY_CALIB_TX_IQ_PERIODIC:
2226 if (sc->hw_type < IWN_HW_REV_TYPE_6000 &&
2227 sc->hw_type != IWN_HW_REV_TYPE_5150)
2230 case IWN5000_PHY_CALIB_BASE_BAND:
2234 if (idx == -1) /* Ignore other results. */
2237 /* Save calibration result. */
2238 if (sc->calibcmd[idx].buf != NULL)
2239 kfree(sc->calibcmd[idx].buf, M_DEVBUF);
2240 sc->calibcmd[idx].buf = kmalloc(len, M_DEVBUF, M_INTWAIT);
2241 if (sc->calibcmd[idx].buf == NULL) {
2242 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
2243 "not enough memory for calibration result %d\n",
2247 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
2248 "saving calibration result code=%d len=%d\n", calib->code, len);
2249 sc->calibcmd[idx].len = len;
2250 memcpy(sc->calibcmd[idx].buf, calib, len);
2254 * Process an RX_STATISTICS or BEACON_STATISTICS firmware notification.
2255 * The latter is sent by the firmware after each received beacon.
2258 iwn_rx_statistics(struct iwn_softc *sc, struct iwn_rx_desc *desc,
2259 struct iwn_rx_data *data)
2261 const struct iwn_hal *hal = sc->sc_hal;
2262 struct ifnet *ifp = sc->sc_ifp;
2263 struct ieee80211com *ic = ifp->if_l2com;
2264 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2265 struct iwn_calib_state *calib = &sc->calib;
2266 struct iwn_stats *stats = (struct iwn_stats *)(desc + 1);
2269 /* Beacon stats are meaningful only when associated and not scanning. */
2270 if (vap->iv_state != IEEE80211_S_RUN ||
2271 (ic->ic_flags & IEEE80211_F_SCAN))
2274 bus_dmamap_sync(sc->rxq.data_dmat, data->map, BUS_DMASYNC_POSTREAD);
2275 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: cmd %d\n", __func__, desc->type);
2276 iwn_calib_reset(sc); /* Reset TX power calibration timeout. */
2278 /* Test if temperature has changed. */
2279 if (stats->general.temp != sc->rawtemp) {
2280 /* Convert "raw" temperature to degC. */
2281 sc->rawtemp = stats->general.temp;
2282 temp = hal->get_temperature(sc);
2283 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: temperature %d\n",
2286 /* Update TX power if need be (4965AGN only.) */
2287 if (sc->hw_type == IWN_HW_REV_TYPE_4965)
2288 iwn4965_power_calibration(sc, temp);
2291 if (desc->type != IWN_BEACON_STATISTICS)
2292 return; /* Reply to a statistics request. */
2294 sc->noise = iwn_get_noise(&stats->rx.general);
2295 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: noise %d\n", __func__, sc->noise);
2297 /* Test that RSSI and noise are present in stats report. */
2298 if (le32toh(stats->rx.general.flags) != 1) {
2299 DPRINTF(sc, IWN_DEBUG_ANY, "%s\n",
2300 "received statistics without RSSI");
2304 if (calib->state == IWN_CALIB_STATE_ASSOC)
2305 iwn_collect_noise(sc, &stats->rx.general);
2306 else if (calib->state == IWN_CALIB_STATE_RUN)
2307 iwn_tune_sensitivity(sc, &stats->rx);
2311 * Process a TX_DONE firmware notification. Unfortunately, the 4965AGN
2312 * and 5000 adapters have different incompatible TX status formats.
2315 iwn4965_tx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc,
2316 struct iwn_rx_data *data)
2318 struct iwn4965_tx_stat *stat = (struct iwn4965_tx_stat *)(desc + 1);
2319 struct iwn_tx_ring *ring = &sc->txq[desc->qid & 0xf];
2321 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: "
2322 "qid %d idx %d retries %d nkill %d rate %x duration %d status %x\n",
2323 __func__, desc->qid, desc->idx, stat->ackfailcnt,
2324 stat->btkillcnt, stat->rate, le16toh(stat->duration),
2325 le32toh(stat->status));
2327 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTREAD);
2328 iwn_tx_done(sc, desc, stat->ackfailcnt, le32toh(stat->status) & 0xff);
2332 iwn5000_tx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc,
2333 struct iwn_rx_data *data)
2335 struct iwn5000_tx_stat *stat = (struct iwn5000_tx_stat *)(desc + 1);
2336 struct iwn_tx_ring *ring = &sc->txq[desc->qid & 0xf];
2338 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: "
2339 "qid %d idx %d retries %d nkill %d rate %x duration %d status %x\n",
2340 __func__, desc->qid, desc->idx, stat->ackfailcnt,
2341 stat->btkillcnt, stat->rate, le16toh(stat->duration),
2342 le32toh(stat->status));
2345 /* Reset TX scheduler slot. */
2346 iwn5000_reset_sched(sc, desc->qid & 0xf, desc->idx);
2349 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTREAD);
2350 iwn_tx_done(sc, desc, stat->ackfailcnt, le16toh(stat->status) & 0xff);
2354 * Adapter-independent backend for TX_DONE firmware notifications.
2357 iwn_tx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc, int ackfailcnt,
2360 struct ifnet *ifp = sc->sc_ifp;
2361 struct iwn_tx_ring *ring = &sc->txq[desc->qid & 0xf];
2362 struct iwn_tx_data *data = &ring->data[desc->idx];
2364 struct ieee80211_node *ni;
2365 struct ieee80211vap *vap;
2367 KASSERT(data->ni != NULL, ("no node"));
2369 /* Unmap and free mbuf. */
2370 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTWRITE);
2371 bus_dmamap_unload(ring->data_dmat, data->map);
2372 m = data->m, data->m = NULL;
2373 ni = data->ni, data->ni = NULL;
2376 if (m->m_flags & M_TXCB) {
2378 * Channels marked for "radar" require traffic to be received
2379 * to unlock before we can transmit. Until traffic is seen
2380 * any attempt to transmit is returned immediately with status
2381 * set to IWN_TX_FAIL_TX_LOCKED. Unfortunately this can easily
2382 * happen on first authenticate after scanning. To workaround
2383 * this we ignore a failure of this sort in AUTH state so the
2384 * 802.11 layer will fall back to using a timeout to wait for
2385 * the AUTH reply. This allows the firmware time to see
2386 * traffic so a subsequent retry of AUTH succeeds. It's
2387 * unclear why the firmware does not maintain state for
2388 * channels recently visited as this would allow immediate
2389 * use of the channel after a scan (where we see traffic).
2391 if (status == IWN_TX_FAIL_TX_LOCKED &&
2392 ni->ni_vap->iv_state == IEEE80211_S_AUTH)
2393 ieee80211_process_callback(ni, m, 0);
2395 ieee80211_process_callback(ni, m,
2396 (status & IWN_TX_FAIL) != 0);
2400 * Update rate control statistics for the node.
2402 if (status & 0x80) {
2404 ieee80211_ratectl_tx_complete(vap, ni,
2405 IEEE80211_RATECTL_TX_FAILURE, &ackfailcnt, NULL);
2407 ieee80211_ratectl_tx_complete(vap, ni,
2408 IEEE80211_RATECTL_TX_SUCCESS, &ackfailcnt, NULL);
2411 ieee80211_free_node(ni);
2413 sc->sc_tx_timer = 0;
2414 if (--ring->queued < IWN_TX_RING_LOMARK) {
2415 sc->qfullmsk &= ~(1 << ring->qid);
2416 if (sc->qfullmsk == 0 &&
2417 (ifp->if_flags & IFF_OACTIVE)) {
2418 ifp->if_flags &= ~IFF_OACTIVE;
2419 iwn_start_locked(ifp);
2425 * Process a "command done" firmware notification. This is where we wakeup
2426 * processes waiting for a synchronous command completion.
2429 iwn_cmd_done(struct iwn_softc *sc, struct iwn_rx_desc *desc)
2431 struct iwn_tx_ring *ring = &sc->txq[4];
2432 struct iwn_tx_data *data;
2434 if ((desc->qid & 0xf) != 4)
2435 return; /* Not a command ack. */
2437 data = &ring->data[desc->idx];
2439 /* If the command was mapped in an mbuf, free it. */
2440 if (data->m != NULL) {
2441 bus_dmamap_unload(ring->data_dmat, data->map);
2445 wakeup(&ring->desc[desc->idx]);
2449 * Process an INT_FH_RX or INT_SW_RX interrupt.
2452 iwn_notif_intr(struct iwn_softc *sc)
2454 struct ifnet *ifp = sc->sc_ifp;
2455 struct ieee80211com *ic = ifp->if_l2com;
2456 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2459 bus_dmamap_sync(sc->rxq.stat_dma.tag, sc->rxq.stat_dma.map,
2460 BUS_DMASYNC_POSTREAD);
2462 hw = le16toh(sc->rxq.stat->closed_count) & 0xfff;
2463 while (sc->rxq.cur != hw) {
2464 struct iwn_rx_data *data = &sc->rxq.data[sc->rxq.cur];
2465 struct iwn_rx_desc *desc;
2467 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2468 BUS_DMASYNC_POSTREAD);
2469 desc = mtod(data->m, struct iwn_rx_desc *);
2471 DPRINTF(sc, IWN_DEBUG_RECV,
2472 "%s: qid %x idx %d flags %x type %d(%s) len %d\n",
2473 __func__, desc->qid & 0xf, desc->idx, desc->flags,
2474 desc->type, iwn_intr_str(desc->type),
2475 le16toh(desc->len));
2477 if (!(desc->qid & 0x80)) /* Reply to a command. */
2478 iwn_cmd_done(sc, desc);
2480 switch (desc->type) {
2482 iwn_rx_phy(sc, desc, data);
2485 case IWN_RX_DONE: /* 4965AGN only. */
2486 case IWN_MPDU_RX_DONE:
2487 /* An 802.11 frame has been received. */
2488 iwn_rx_done(sc, desc, data);
2492 case IWN_RX_COMPRESSED_BA:
2493 /* A Compressed BlockAck has been received. */
2494 iwn_rx_compressed_ba(sc, desc, data);
2499 /* An 802.11 frame has been transmitted. */
2500 sc->sc_hal->tx_done(sc, desc, data);
2503 case IWN_RX_STATISTICS:
2504 case IWN_BEACON_STATISTICS:
2505 iwn_rx_statistics(sc, desc, data);
2508 case IWN_BEACON_MISSED:
2510 struct iwn_beacon_missed *miss =
2511 (struct iwn_beacon_missed *)(desc + 1);
2514 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2515 BUS_DMASYNC_POSTREAD);
2516 misses = le32toh(miss->consecutive);
2518 /* XXX not sure why we're notified w/ zero */
2521 DPRINTF(sc, IWN_DEBUG_STATE,
2522 "%s: beacons missed %d/%d\n", __func__,
2523 misses, le32toh(miss->total));
2526 * If more than 5 consecutive beacons are missed,
2527 * reinitialize the sensitivity state machine.
2529 if (vap->iv_state == IEEE80211_S_RUN && misses > 5)
2530 (void) iwn_init_sensitivity(sc);
2531 if (misses >= vap->iv_bmissthreshold) {
2533 ieee80211_beacon_miss(ic);
2540 struct iwn_ucode_info *uc =
2541 (struct iwn_ucode_info *)(desc + 1);
2543 /* The microcontroller is ready. */
2544 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2545 BUS_DMASYNC_POSTREAD);
2546 DPRINTF(sc, IWN_DEBUG_RESET,
2547 "microcode alive notification version=%d.%d "
2548 "subtype=%x alive=%x\n", uc->major, uc->minor,
2549 uc->subtype, le32toh(uc->valid));
2551 if (le32toh(uc->valid) != 1) {
2552 device_printf(sc->sc_dev,
2553 "microcontroller initialization failed");
2556 if (uc->subtype == IWN_UCODE_INIT) {
2557 /* Save microcontroller report. */
2558 memcpy(&sc->ucode_info, uc, sizeof (*uc));
2560 /* Save the address of the error log in SRAM. */
2561 sc->errptr = le32toh(uc->errptr);
2564 case IWN_STATE_CHANGED:
2566 uint32_t *status = (uint32_t *)(desc + 1);
2569 * State change allows hardware switch change to be
2570 * noted. However, we handle this in iwn_intr as we
2571 * get both the enable/disble intr.
2573 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2574 BUS_DMASYNC_POSTREAD);
2575 DPRINTF(sc, IWN_DEBUG_INTR, "state changed to %x\n",
2579 case IWN_START_SCAN:
2581 struct iwn_start_scan *scan =
2582 (struct iwn_start_scan *)(desc + 1);
2584 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2585 BUS_DMASYNC_POSTREAD);
2586 DPRINTF(sc, IWN_DEBUG_ANY,
2587 "%s: scanning channel %d status %x\n",
2588 __func__, scan->chan, le32toh(scan->status));
2593 struct iwn_stop_scan *scan =
2594 (struct iwn_stop_scan *)(desc + 1);
2596 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2597 BUS_DMASYNC_POSTREAD);
2598 DPRINTF(sc, IWN_DEBUG_STATE,
2599 "scan finished nchan=%d status=%d chan=%d\n",
2600 scan->nchan, scan->status, scan->chan);
2603 ieee80211_scan_next(vap);
2607 case IWN5000_CALIBRATION_RESULT:
2608 iwn5000_rx_calib_results(sc, desc, data);
2611 case IWN5000_CALIBRATION_DONE:
2612 sc->sc_flags |= IWN_FLAG_CALIB_DONE;
2617 sc->rxq.cur = (sc->rxq.cur + 1) % IWN_RX_RING_COUNT;
2620 /* Tell the firmware what we have processed. */
2621 hw = (hw == 0) ? IWN_RX_RING_COUNT - 1 : hw - 1;
2622 IWN_WRITE(sc, IWN_FH_RX_WPTR, hw & ~7);
2626 * Process an INT_WAKEUP interrupt raised when the microcontroller wakes up
2627 * from power-down sleep mode.
2630 iwn_wakeup_intr(struct iwn_softc *sc)
2634 DPRINTF(sc, IWN_DEBUG_RESET, "%s: ucode wakeup from power-down sleep\n",
2637 /* Wakeup RX and TX rings. */
2638 IWN_WRITE(sc, IWN_FH_RX_WPTR, sc->rxq.cur & ~7);
2639 for (qid = 0; qid < sc->sc_hal->ntxqs; qid++) {
2640 struct iwn_tx_ring *ring = &sc->txq[qid];
2641 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | ring->cur);
2646 iwn_rftoggle_intr(struct iwn_softc *sc)
2648 struct ifnet *ifp = sc->sc_ifp;
2649 struct ieee80211com *ic = ifp->if_l2com;
2650 uint32_t tmp = IWN_READ(sc, IWN_GP_CNTRL);
2652 IWN_LOCK_ASSERT(sc);
2654 device_printf(sc->sc_dev, "RF switch: radio %s\n",
2655 (tmp & IWN_GP_CNTRL_RFKILL) ? "enabled" : "disabled");
2656 if (tmp & IWN_GP_CNTRL_RFKILL)
2657 ieee80211_runtask(ic, &sc->sc_radioon_task);
2659 ieee80211_runtask(ic, &sc->sc_radiooff_task);
2663 * Dump the error log of the firmware when a firmware panic occurs. Although
2664 * we can't debug the firmware because it is neither open source nor free, it
2665 * can help us to identify certain classes of problems.
2668 iwn_fatal_intr(struct iwn_softc *sc)
2670 const struct iwn_hal *hal = sc->sc_hal;
2671 struct iwn_fw_dump dump;
2674 IWN_LOCK_ASSERT(sc);
2676 /* Force a complete recalibration on next init. */
2677 sc->sc_flags &= ~IWN_FLAG_CALIB_DONE;
2679 /* Check that the error log address is valid. */
2680 if (sc->errptr < IWN_FW_DATA_BASE ||
2681 sc->errptr + sizeof (dump) >
2682 IWN_FW_DATA_BASE + hal->fw_data_maxsz) {
2683 kprintf("%s: bad firmware error log address 0x%08x\n",
2684 __func__, sc->errptr);
2687 if (iwn_nic_lock(sc) != 0) {
2688 kprintf("%s: could not read firmware error log\n",
2692 /* Read firmware error log from SRAM. */
2693 iwn_mem_read_region_4(sc, sc->errptr, (uint32_t *)&dump,
2694 sizeof (dump) / sizeof (uint32_t));
2697 if (dump.valid == 0) {
2698 kprintf("%s: firmware error log is empty\n",
2702 kprintf("firmware error log:\n");
2703 kprintf(" error type = \"%s\" (0x%08X)\n",
2704 (dump.id < nitems(iwn_fw_errmsg)) ?
2705 iwn_fw_errmsg[dump.id] : "UNKNOWN",
2707 kprintf(" program counter = 0x%08X\n", dump.pc);
2708 kprintf(" source line = 0x%08X\n", dump.src_line);
2709 kprintf(" error data = 0x%08X%08X\n",
2710 dump.error_data[0], dump.error_data[1]);
2711 kprintf(" branch link = 0x%08X%08X\n",
2712 dump.branch_link[0], dump.branch_link[1]);
2713 kprintf(" interrupt link = 0x%08X%08X\n",
2714 dump.interrupt_link[0], dump.interrupt_link[1]);
2715 kprintf(" time = %u\n", dump.time[0]);
2717 /* Dump driver status (TX and RX rings) while we're here. */
2718 kprintf("driver status:\n");
2719 for (i = 0; i < hal->ntxqs; i++) {
2720 struct iwn_tx_ring *ring = &sc->txq[i];
2721 kprintf(" tx ring %2d: qid=%-2d cur=%-3d queued=%-3d\n",
2722 i, ring->qid, ring->cur, ring->queued);
2724 kprintf(" rx ring: cur=%d\n", sc->rxq.cur);
2730 struct iwn_softc *sc = arg;
2731 struct ifnet *ifp = sc->sc_ifp;
2732 uint32_t r1, r2, tmp;
2734 /* Disable interrupts. */
2735 IWN_WRITE(sc, IWN_INT_MASK, 0);
2737 /* Read interrupts from ICT (fast) or from registers (slow). */
2738 if (sc->sc_flags & IWN_FLAG_USE_ICT) {
2740 while (sc->ict[sc->ict_cur] != 0) {
2741 tmp |= sc->ict[sc->ict_cur];
2742 sc->ict[sc->ict_cur] = 0; /* Acknowledge. */
2743 sc->ict_cur = (sc->ict_cur + 1) % IWN_ICT_COUNT;
2746 if (tmp == 0xffffffff) /* Shouldn't happen. */
2748 else if (tmp & 0xc0000) /* Workaround a HW bug. */
2750 r1 = (tmp & 0xff00) << 16 | (tmp & 0xff);
2751 r2 = 0; /* Unused. */
2753 r1 = IWN_READ(sc, IWN_INT);
2754 if (r1 == 0xffffffff || (r1 & 0xfffffff0) == 0xa5a5a5a0)
2755 return; /* Hardware gone! */
2756 r2 = IWN_READ(sc, IWN_FH_INT);
2759 DPRINTF(sc, IWN_DEBUG_INTR, "interrupt reg1=%x reg2=%x\n", r1, r2);
2761 if (r1 == 0 && r2 == 0)
2762 goto done; /* Interrupt not for us. */
2764 /* Acknowledge interrupts. */
2765 IWN_WRITE(sc, IWN_INT, r1);
2766 if (!(sc->sc_flags & IWN_FLAG_USE_ICT))
2767 IWN_WRITE(sc, IWN_FH_INT, r2);
2769 if (r1 & IWN_INT_RF_TOGGLED) {
2770 iwn_rftoggle_intr(sc);
2773 if (r1 & IWN_INT_CT_REACHED) {
2774 device_printf(sc->sc_dev, "%s: critical temperature reached!\n",
2777 if (r1 & (IWN_INT_SW_ERR | IWN_INT_HW_ERR)) {
2779 ifp->if_flags &= ~IFF_UP;
2780 iwn_stop_locked(sc);
2783 if ((r1 & (IWN_INT_FH_RX | IWN_INT_SW_RX | IWN_INT_RX_PERIODIC)) ||
2784 (r2 & IWN_FH_INT_RX)) {
2785 if (sc->sc_flags & IWN_FLAG_USE_ICT) {
2786 if (r1 & (IWN_INT_FH_RX | IWN_INT_SW_RX))
2787 IWN_WRITE(sc, IWN_FH_INT, IWN_FH_INT_RX);
2788 IWN_WRITE_1(sc, IWN_INT_PERIODIC,
2789 IWN_INT_PERIODIC_DIS);
2791 if (r1 & (IWN_INT_FH_RX | IWN_INT_SW_RX)) {
2792 IWN_WRITE_1(sc, IWN_INT_PERIODIC,
2793 IWN_INT_PERIODIC_ENA);
2799 if ((r1 & IWN_INT_FH_TX) || (r2 & IWN_FH_INT_TX)) {
2800 if (sc->sc_flags & IWN_FLAG_USE_ICT)
2801 IWN_WRITE(sc, IWN_FH_INT, IWN_FH_INT_TX);
2802 wakeup(sc); /* FH DMA transfer completed. */
2805 if (r1 & IWN_INT_ALIVE)
2806 wakeup(sc); /* Firmware is alive. */
2808 if (r1 & IWN_INT_WAKEUP)
2809 iwn_wakeup_intr(sc);
2812 /* Re-enable interrupts. */
2813 if (ifp->if_flags & IFF_UP)
2814 IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask);
2819 * Update TX scheduler ring when transmitting an 802.11 frame (4965AGN and
2820 * 5000 adapters use a slightly different format.)
2823 iwn4965_update_sched(struct iwn_softc *sc, int qid, int idx, uint8_t id,
2826 uint16_t *w = &sc->sched[qid * IWN4965_SCHED_COUNT + idx];
2828 *w = htole16(len + 8);
2829 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map,
2830 BUS_DMASYNC_PREWRITE);
2831 if (idx < IWN_SCHED_WINSZ) {
2832 *(w + IWN_TX_RING_COUNT) = *w;
2833 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map,
2834 BUS_DMASYNC_PREWRITE);
2839 iwn5000_update_sched(struct iwn_softc *sc, int qid, int idx, uint8_t id,
2842 uint16_t *w = &sc->sched[qid * IWN5000_SCHED_COUNT + idx];
2844 *w = htole16(id << 12 | (len + 8));
2846 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map,
2847 BUS_DMASYNC_PREWRITE);
2848 if (idx < IWN_SCHED_WINSZ) {
2849 *(w + IWN_TX_RING_COUNT) = *w;
2850 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map,
2851 BUS_DMASYNC_PREWRITE);
2857 iwn5000_reset_sched(struct iwn_softc *sc, int qid, int idx)
2859 uint16_t *w = &sc->sched[qid * IWN5000_SCHED_COUNT + idx];
2861 *w = (*w & htole16(0xf000)) | htole16(1);
2862 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map,
2863 BUS_DMASYNC_PREWRITE);
2864 if (idx < IWN_SCHED_WINSZ) {
2865 *(w + IWN_TX_RING_COUNT) = *w;
2866 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map,
2867 BUS_DMASYNC_PREWRITE);
2873 iwn_plcp_signal(int rate) {
2876 for (i = 0; i < IWN_RIDX_MAX + 1; i++) {
2877 if (rate == iwn_rates[i].rate)
2885 iwn_tx_data(struct iwn_softc *sc, struct mbuf *m, struct ieee80211_node *ni,
2886 struct iwn_tx_ring *ring)
2888 const struct iwn_hal *hal = sc->sc_hal;
2889 const struct ieee80211_txparam *tp;
2890 const struct iwn_rate *rinfo;
2891 struct ieee80211vap *vap = ni->ni_vap;
2892 struct ieee80211com *ic = ni->ni_ic;
2893 struct iwn_node *wn = (void *)ni;
2894 struct iwn_tx_desc *desc;
2895 struct iwn_tx_data *data;
2896 struct iwn_tx_cmd *cmd;
2897 struct iwn_cmd_data *tx;
2898 struct ieee80211_frame *wh;
2899 struct ieee80211_key *k = NULL;
2901 bus_dma_segment_t segs[IWN_MAX_SCATTER];
2904 int totlen, error, pad, nsegs = 0, i, rate;
2905 uint8_t ridx, type, txant;
2907 IWN_LOCK_ASSERT(sc);
2909 wh = mtod(m, struct ieee80211_frame *);
2910 hdrlen = ieee80211_anyhdrsize(wh);
2911 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
2913 desc = &ring->desc[ring->cur];
2914 data = &ring->data[ring->cur];
2916 /* Choose a TX rate index. */
2917 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)];
2918 if (type == IEEE80211_FC0_TYPE_MGT)
2919 rate = tp->mgmtrate;
2920 else if (IEEE80211_IS_MULTICAST(wh->i_addr1))
2921 rate = tp->mcastrate;
2922 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE)
2923 rate = tp->ucastrate;
2925 /* XXX pass pktlen */
2926 ieee80211_ratectl_rate(ni, NULL, 0);
2928 rate = ni->ni_txrate;
2930 ridx = iwn_plcp_signal(rate);
2931 rinfo = &iwn_rates[ridx];
2933 /* Encrypt the frame if need be. */
2934 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
2935 k = ieee80211_crypto_encap(ni, m);
2940 /* Packet header may have moved, reset our local pointer. */
2941 wh = mtod(m, struct ieee80211_frame *);
2943 totlen = m->m_pkthdr.len;
2945 if (ieee80211_radiotap_active_vap(vap)) {
2946 struct iwn_tx_radiotap_header *tap = &sc->sc_txtap;
2949 tap->wt_rate = rinfo->rate;
2951 tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP;
2953 ieee80211_radiotap_tx(vap, m);
2956 /* Prepare TX firmware command. */
2957 cmd = &ring->cmd[ring->cur];
2958 cmd->code = IWN_CMD_TX_DATA;
2960 cmd->qid = ring->qid;
2961 cmd->idx = ring->cur;
2963 tx = (struct iwn_cmd_data *)cmd->data;
2964 /* NB: No need to clear tx, all fields are reinitialized here. */
2965 tx->scratch = 0; /* clear "scratch" area */
2968 if (!IEEE80211_IS_MULTICAST(wh->i_addr1))
2969 flags |= IWN_TX_NEED_ACK;
2971 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) ==
2972 (IEEE80211_FC0_TYPE_CTL | IEEE80211_FC0_SUBTYPE_BAR))
2973 flags |= IWN_TX_IMM_BA; /* Cannot happen yet. */
2975 if (wh->i_fc[1] & IEEE80211_FC1_MORE_FRAG)
2976 flags |= IWN_TX_MORE_FRAG; /* Cannot happen yet. */
2978 /* Check if frame must be protected using RTS/CTS or CTS-to-self. */
2979 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
2980 /* NB: Group frames are sent using CCK in 802.11b/g. */
2981 if (totlen + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) {
2982 flags |= IWN_TX_NEED_RTS;
2983 } else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
2984 ridx >= IWN_RIDX_OFDM6) {
2985 if (ic->ic_protmode == IEEE80211_PROT_CTSONLY)
2986 flags |= IWN_TX_NEED_CTS;
2987 else if (ic->ic_protmode == IEEE80211_PROT_RTSCTS)
2988 flags |= IWN_TX_NEED_RTS;
2990 if (flags & (IWN_TX_NEED_RTS | IWN_TX_NEED_CTS)) {
2991 if (sc->hw_type != IWN_HW_REV_TYPE_4965) {
2992 /* 5000 autoselects RTS/CTS or CTS-to-self. */
2993 flags &= ~(IWN_TX_NEED_RTS | IWN_TX_NEED_CTS);
2994 flags |= IWN_TX_NEED_PROTECTION;
2996 flags |= IWN_TX_FULL_TXOP;
3000 if (IEEE80211_IS_MULTICAST(wh->i_addr1) ||
3001 type != IEEE80211_FC0_TYPE_DATA)
3002 tx->id = hal->broadcast_id;
3006 if (type == IEEE80211_FC0_TYPE_MGT) {
3007 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
3009 /* Tell HW to set timestamp in probe responses. */
3010 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP)
3011 flags |= IWN_TX_INSERT_TSTAMP;
3013 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ ||
3014 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ)
3015 tx->timeout = htole16(3);
3017 tx->timeout = htole16(2);
3019 tx->timeout = htole16(0);
3022 /* First segment length must be a multiple of 4. */
3023 flags |= IWN_TX_NEED_PADDING;
3024 pad = 4 - (hdrlen & 3);
3028 tx->len = htole16(totlen);
3030 tx->rts_ntries = 60;
3031 tx->data_ntries = 15;
3032 tx->lifetime = htole32(IWN_LIFETIME_INFINITE);
3033 tx->plcp = rinfo->plcp;
3034 tx->rflags = rinfo->flags;
3035 if (tx->id == hal->broadcast_id) {
3036 /* Group or management frame. */
3038 /* XXX Alternate between antenna A and B? */
3039 txant = IWN_LSB(sc->txchainmask);
3040 tx->rflags |= IWN_RFLAG_ANT(txant);
3043 flags |= IWN_TX_LINKQ; /* enable MRR */
3046 /* Set physical address of "scratch area". */
3047 tx->loaddr = htole32(IWN_LOADDR(data->scratch_paddr));
3048 tx->hiaddr = IWN_HIADDR(data->scratch_paddr);
3050 /* Copy 802.11 header in TX command. */
3051 memcpy((uint8_t *)(tx + 1), wh, hdrlen);
3053 /* Trim 802.11 header. */
3056 tx->flags = htole32(flags);
3059 error = bus_dmamap_load_mbuf_segment(ring->data_dmat, data->map,
3060 m, segs, IWN_MAX_SCATTER - 1, &nsegs, BUS_DMA_NOWAIT);
3061 if (error == EFBIG) {
3062 /* too many fragments, linearize */
3063 mnew = m_defrag(m, MB_DONTWAIT);
3065 device_printf(sc->sc_dev,
3066 "%s: could not defrag mbuf\n", __func__);
3071 error = bus_dmamap_load_mbuf_segment(ring->data_dmat,
3072 data->map, m, segs, IWN_MAX_SCATTER - 1, &nsegs, BUS_DMA_NOWAIT);
3075 device_printf(sc->sc_dev,
3076 "%s: bus_dmamap_load_mbuf_segment failed, error %d\n",
3086 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: qid %d idx %d len %d nsegs %d\n",
3087 __func__, ring->qid, ring->cur, m->m_pkthdr.len, nsegs);
3089 /* Fill TX descriptor. */
3090 desc->nsegs = 1 + nsegs;
3091 /* First DMA segment is used by the TX command. */
3092 desc->segs[0].addr = htole32(IWN_LOADDR(data->cmd_paddr));
3093 desc->segs[0].len = htole16(IWN_HIADDR(data->cmd_paddr) |
3094 (4 + sizeof (*tx) + hdrlen + pad) << 4);
3095 /* Other DMA segments are for data payload. */
3096 for (i = 1; i <= nsegs; i++) {
3097 desc->segs[i].addr = htole32(IWN_LOADDR(segs[i - 1].ds_addr));
3098 desc->segs[i].len = htole16(IWN_HIADDR(segs[i - 1].ds_addr) |
3099 segs[i - 1].ds_len << 4);
3102 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
3103 bus_dmamap_sync(ring->data_dmat, ring->cmd_dma.map,
3104 BUS_DMASYNC_PREWRITE);
3105 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
3106 BUS_DMASYNC_PREWRITE);
3109 /* Update TX scheduler. */
3110 hal->update_sched(sc, ring->qid, ring->cur, tx->id, totlen);
3114 ring->cur = (ring->cur + 1) % IWN_TX_RING_COUNT;
3115 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur);
3117 /* Mark TX ring as full if we reach a certain threshold. */
3118 if (++ring->queued > IWN_TX_RING_HIMARK)
3119 sc->qfullmsk |= 1 << ring->qid;
3125 iwn_tx_data_raw(struct iwn_softc *sc, struct mbuf *m,
3126 struct ieee80211_node *ni, struct iwn_tx_ring *ring,
3127 const struct ieee80211_bpf_params *params)
3129 const struct iwn_hal *hal = sc->sc_hal;
3130 const struct iwn_rate *rinfo;
3131 struct ifnet *ifp = sc->sc_ifp;
3132 struct ieee80211vap *vap = ni->ni_vap;
3133 struct ieee80211com *ic = ifp->if_l2com;
3134 struct iwn_tx_cmd *cmd;
3135 struct iwn_cmd_data *tx;
3136 struct ieee80211_frame *wh;
3137 struct iwn_tx_desc *desc;
3138 struct iwn_tx_data *data;
3141 bus_dma_segment_t segs[IWN_MAX_SCATTER];
3144 int totlen, error, pad, nsegs = 0, i, rate;
3145 uint8_t ridx, type, txant;
3147 IWN_LOCK_ASSERT(sc);
3149 wh = mtod(m, struct ieee80211_frame *);
3150 hdrlen = ieee80211_anyhdrsize(wh);
3151 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
3153 desc = &ring->desc[ring->cur];
3154 data = &ring->data[ring->cur];
3156 /* Choose a TX rate index. */
3157 rate = params->ibp_rate0;
3158 if (!ieee80211_isratevalid(ic->ic_rt, rate)) {
3159 /* XXX fall back to mcast/mgmt rate? */
3163 ridx = iwn_plcp_signal(rate);
3164 rinfo = &iwn_rates[ridx];
3166 totlen = m->m_pkthdr.len;
3168 /* Prepare TX firmware command. */
3169 cmd = &ring->cmd[ring->cur];
3170 cmd->code = IWN_CMD_TX_DATA;
3172 cmd->qid = ring->qid;
3173 cmd->idx = ring->cur;
3175 tx = (struct iwn_cmd_data *)cmd->data;
3176 /* NB: No need to clear tx, all fields are reinitialized here. */
3177 tx->scratch = 0; /* clear "scratch" area */
3180 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
3181 flags |= IWN_TX_NEED_ACK;
3182 if (params->ibp_flags & IEEE80211_BPF_RTS) {
3183 if (sc->hw_type != IWN_HW_REV_TYPE_4965) {
3184 /* 5000 autoselects RTS/CTS or CTS-to-self. */
3185 flags &= ~IWN_TX_NEED_RTS;
3186 flags |= IWN_TX_NEED_PROTECTION;
3188 flags |= IWN_TX_NEED_RTS | IWN_TX_FULL_TXOP;
3190 if (params->ibp_flags & IEEE80211_BPF_CTS) {
3191 if (sc->hw_type != IWN_HW_REV_TYPE_4965) {
3192 /* 5000 autoselects RTS/CTS or CTS-to-self. */
3193 flags &= ~IWN_TX_NEED_CTS;
3194 flags |= IWN_TX_NEED_PROTECTION;
3196 flags |= IWN_TX_NEED_CTS | IWN_TX_FULL_TXOP;
3198 if (type == IEEE80211_FC0_TYPE_MGT) {
3199 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
3201 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP)
3202 flags |= IWN_TX_INSERT_TSTAMP;
3204 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ ||
3205 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ)
3206 tx->timeout = htole16(3);
3208 tx->timeout = htole16(2);
3210 tx->timeout = htole16(0);
3213 /* First segment length must be a multiple of 4. */
3214 flags |= IWN_TX_NEED_PADDING;
3215 pad = 4 - (hdrlen & 3);
3219 if (ieee80211_radiotap_active_vap(vap)) {
3220 struct iwn_tx_radiotap_header *tap = &sc->sc_txtap;
3223 tap->wt_rate = rate;
3225 ieee80211_radiotap_tx(vap, m);
3228 tx->len = htole16(totlen);
3230 tx->id = hal->broadcast_id;
3231 tx->rts_ntries = params->ibp_try1;
3232 tx->data_ntries = params->ibp_try0;
3233 tx->lifetime = htole32(IWN_LIFETIME_INFINITE);
3234 tx->plcp = rinfo->plcp;
3235 tx->rflags = rinfo->flags;
3236 /* Group or management frame. */
3238 txant = IWN_LSB(sc->txchainmask);
3239 tx->rflags |= IWN_RFLAG_ANT(txant);
3240 /* Set physical address of "scratch area". */
3241 paddr = ring->cmd_dma.paddr + ring->cur * sizeof (struct iwn_tx_cmd);
3242 tx->loaddr = htole32(IWN_LOADDR(paddr));
3243 tx->hiaddr = IWN_HIADDR(paddr);
3245 /* Copy 802.11 header in TX command. */
3246 memcpy((uint8_t *)(tx + 1), wh, hdrlen);
3248 /* Trim 802.11 header. */
3251 tx->flags = htole32(flags);
3254 error = bus_dmamap_load_mbuf_segment(ring->data_dmat, data->map,
3255 m, segs, IWN_MAX_SCATTER - 1, &nsegs, BUS_DMA_NOWAIT);
3256 if (error == EFBIG) {
3257 /* Too many fragments, linearize. */
3258 mnew = m_defrag(m, MB_DONTWAIT);
3260 device_printf(sc->sc_dev,
3261 "%s: could not defrag mbuf\n", __func__);
3266 error = bus_dmamap_load_mbuf_segment(ring->data_dmat,
3267 data->map, m, segs, IWN_MAX_SCATTER - 1, &nsegs, BUS_DMA_NOWAIT);
3270 device_printf(sc->sc_dev,
3271 "%s: bus_dmamap_load_mbuf_segment failed, error %d\n",
3281 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: qid %d idx %d len %d nsegs %d\n",
3282 __func__, ring->qid, ring->cur, m->m_pkthdr.len, nsegs);
3284 /* Fill TX descriptor. */
3285 desc->nsegs = 1 + nsegs;
3286 /* First DMA segment is used by the TX command. */
3287 desc->segs[0].addr = htole32(IWN_LOADDR(data->cmd_paddr));
3288 desc->segs[0].len = htole16(IWN_HIADDR(data->cmd_paddr) |
3289 (4 + sizeof (*tx) + hdrlen + pad) << 4);
3290 /* Other DMA segments are for data payload. */
3291 for (i = 1; i <= nsegs; i++) {
3292 desc->segs[i].addr = htole32(IWN_LOADDR(segs[i - 1].ds_addr));
3293 desc->segs[i].len = htole16(IWN_HIADDR(segs[i - 1].ds_addr) |
3294 segs[i - 1].ds_len << 4);
3297 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
3298 bus_dmamap_sync(ring->data_dmat, ring->cmd_dma.map,
3299 BUS_DMASYNC_PREWRITE);
3300 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
3301 BUS_DMASYNC_PREWRITE);
3304 /* Update TX scheduler. */
3305 hal->update_sched(sc, ring->qid, ring->cur, tx->id, totlen);
3309 ring->cur = (ring->cur + 1) % IWN_TX_RING_COUNT;
3310 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur);
3312 /* Mark TX ring as full if we reach a certain threshold. */
3313 if (++ring->queued > IWN_TX_RING_HIMARK)
3314 sc->qfullmsk |= 1 << ring->qid;
3320 iwn_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
3321 const struct ieee80211_bpf_params *params)
3323 struct ieee80211com *ic = ni->ni_ic;
3324 struct ifnet *ifp = ic->ic_ifp;
3325 struct iwn_softc *sc = ifp->if_softc;
3326 struct iwn_tx_ring *txq;
3329 if ((ifp->if_flags & IFF_RUNNING) == 0) {
3330 ieee80211_free_node(ni);
3337 txq = &sc->txq[M_WME_GETAC(m)];
3339 txq = &sc->txq[params->ibp_pri & 3];
3341 if (params == NULL) {
3343 * Legacy path; interpret frame contents to decide
3344 * precisely how to send the frame.
3346 error = iwn_tx_data(sc, m, ni, txq);
3349 * Caller supplied explicit parameters to use in
3350 * sending the frame.
3352 error = iwn_tx_data_raw(sc, m, ni, txq, params);
3355 /* NB: m is reclaimed on tx failure */
3356 ieee80211_free_node(ni);
3364 iwn_start(struct ifnet *ifp)
3366 struct iwn_softc *sc = ifp->if_softc;
3368 IWN_LOCK_ASSERT(sc);
3370 iwn_start_locked(ifp);
3374 iwn_start_locked(struct ifnet *ifp)
3376 struct iwn_softc *sc = ifp->if_softc;
3377 struct ieee80211_node *ni;
3378 struct iwn_tx_ring *txq;
3382 IWN_LOCK_ASSERT(sc);
3385 if (sc->qfullmsk != 0) {
3386 ifp->if_flags |= IFF_OACTIVE;
3389 m = ifq_dequeue(&ifp->if_snd, NULL);
3392 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
3393 pri = M_WME_GETAC(m);
3394 txq = &sc->txq[pri];
3395 if (iwn_tx_data(sc, m, ni, txq) != 0) {
3397 ieee80211_free_node(ni);
3400 sc->sc_tx_timer = 5;
3405 iwn_watchdog(struct iwn_softc *sc)
3407 if (sc->sc_tx_timer > 0 && --sc->sc_tx_timer == 0) {
3408 struct ifnet *ifp = sc->sc_ifp;
3409 struct ieee80211com *ic = ifp->if_l2com;
3411 if_printf(ifp, "device timeout\n");
3412 ieee80211_runtask(ic, &sc->sc_reinit_task);
3417 iwn_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *ucred)
3419 struct iwn_softc *sc = ifp->if_softc;
3420 struct ieee80211com *ic = ifp->if_l2com;
3421 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3422 struct ifreq *ifr = (struct ifreq *) data;
3423 int error = 0, startall = 0, stop = 0;
3428 if (ifp->if_flags & IFF_UP) {
3429 if (!(ifp->if_flags & IFF_RUNNING)) {
3430 iwn_init_locked(sc);
3431 if (IWN_READ(sc, IWN_GP_CNTRL) & IWN_GP_CNTRL_RFKILL)
3437 if (ifp->if_flags & IFF_RUNNING)
3438 iwn_stop_locked(sc);
3442 ieee80211_start_all(ic);
3443 else if (vap != NULL && stop)
3444 ieee80211_stop(vap);
3447 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
3450 error = ether_ioctl(ifp, cmd, data);
3460 * Send a command to the firmware.
3463 iwn_cmd(struct iwn_softc *sc, int code, const void *buf, int size, int async)
3465 struct iwn_tx_ring *ring = &sc->txq[4];
3466 struct iwn_tx_desc *desc;
3467 struct iwn_tx_data *data;
3468 struct iwn_tx_cmd *cmd;
3473 IWN_LOCK_ASSERT(sc);
3475 desc = &ring->desc[ring->cur];
3476 data = &ring->data[ring->cur];
3479 if (size > sizeof cmd->data) {
3480 /* Command is too large to fit in a descriptor. */
3481 if (totlen > MCLBYTES)
3483 m = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
3486 cmd = mtod(m, struct iwn_tx_cmd *);
3487 error = bus_dmamap_load(ring->data_dmat, data->map, cmd,
3488 totlen, iwn_dma_map_addr, &paddr, BUS_DMA_NOWAIT);
3495 cmd = &ring->cmd[ring->cur];
3496 paddr = data->cmd_paddr;
3501 cmd->qid = ring->qid;
3502 cmd->idx = ring->cur;
3503 memcpy(cmd->data, buf, size);
3506 desc->segs[0].addr = htole32(IWN_LOADDR(paddr));
3507 desc->segs[0].len = htole16(IWN_HIADDR(paddr) | totlen << 4);
3509 DPRINTF(sc, IWN_DEBUG_CMD, "%s: %s (0x%x) flags %d qid %d idx %d\n",
3510 __func__, iwn_intr_str(cmd->code), cmd->code,
3511 cmd->flags, cmd->qid, cmd->idx);
3513 if (size > sizeof cmd->data) {
3514 bus_dmamap_sync(ring->data_dmat, data->map,
3515 BUS_DMASYNC_PREWRITE);
3517 bus_dmamap_sync(ring->data_dmat, ring->cmd_dma.map,
3518 BUS_DMASYNC_PREWRITE);
3520 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
3521 BUS_DMASYNC_PREWRITE);
3524 /* Update TX scheduler. */
3525 sc->sc_hal->update_sched(sc, ring->qid, ring->cur, 0, 0);
3528 /* Kick command ring. */
3529 ring->cur = (ring->cur + 1) % IWN_TX_RING_COUNT;
3530 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur);
3532 return async ? 0 : zsleep(desc, sc->sc_ifp->if_serializer, 0, "iwncmd", hz);
3536 iwn4965_add_node(struct iwn_softc *sc, struct iwn_node_info *node, int async)
3538 struct iwn4965_node_info hnode;
3542 * We use the node structure for 5000 Series internally (it is
3543 * a superset of the one for 4965AGN). We thus copy the common
3544 * fields before sending the command.
3546 src = (caddr_t)node;
3547 dst = (caddr_t)&hnode;
3548 memcpy(dst, src, 48);
3549 /* Skip TSC, RX MIC and TX MIC fields from ``src''. */
3550 memcpy(dst + 48, src + 72, 20);
3551 return iwn_cmd(sc, IWN_CMD_ADD_NODE, &hnode, sizeof hnode, async);
3555 iwn5000_add_node(struct iwn_softc *sc, struct iwn_node_info *node, int async)
3557 /* Direct mapping. */
3558 return iwn_cmd(sc, IWN_CMD_ADD_NODE, node, sizeof (*node), async);
3562 static const uint8_t iwn_ridx_to_plcp[] = {
3563 10, 20, 55, 110, /* CCK */
3564 0xd, 0xf, 0x5, 0x7, 0x9, 0xb, 0x1, 0x3, 0x3 /* OFDM R1-R4 */
3566 static const uint8_t iwn_siso_mcs_to_plcp[] = {
3567 0, 0, 0, 0, /* CCK */
3568 0, 0, 1, 2, 3, 4, 5, 6, 7 /* HT */
3570 static const uint8_t iwn_mimo_mcs_to_plcp[] = {
3571 0, 0, 0, 0, /* CCK */
3572 8, 8, 9, 10, 11, 12, 13, 14, 15 /* HT */
3575 static const uint8_t iwn_prev_ridx[] = {
3576 /* NB: allow fallback from CCK11 to OFDM9 and from OFDM6 to CCK5 */
3577 0, 0, 1, 5, /* CCK */
3578 2, 4, 3, 6, 7, 8, 9, 10, 10 /* OFDM */
3582 * Configure hardware link parameters for the specified
3583 * node operating on the specified channel.
3586 iwn_set_link_quality(struct iwn_softc *sc, uint8_t id, int async)
3588 struct ifnet *ifp = sc->sc_ifp;
3589 struct ieee80211com *ic = ifp->if_l2com;
3590 struct iwn_cmd_link_quality linkq;
3591 const struct iwn_rate *rinfo;
3593 uint8_t txant, ridx;
3595 /* Use the first valid TX antenna. */
3596 txant = IWN_LSB(sc->txchainmask);
3598 memset(&linkq, 0, sizeof linkq);
3600 linkq.antmsk_1stream = txant;
3601 linkq.antmsk_2stream = IWN_ANT_AB;
3602 linkq.ampdu_max = 31;
3603 linkq.ampdu_threshold = 3;
3604 linkq.ampdu_limit = htole16(4000); /* 4ms */
3607 if (IEEE80211_IS_CHAN_HT(c))
3611 if (id == IWN_ID_BSS)
3612 ridx = IWN_RIDX_OFDM54;
3613 else if (IEEE80211_IS_CHAN_A(ic->ic_curchan))
3614 ridx = IWN_RIDX_OFDM6;
3616 ridx = IWN_RIDX_CCK1;
3618 for (i = 0; i < IWN_MAX_TX_RETRIES; i++) {
3619 rinfo = &iwn_rates[ridx];
3621 if (IEEE80211_IS_CHAN_HT40(c)) {
3622 linkq.retry[i].plcp = iwn_mimo_mcs_to_plcp[ridx]
3624 linkq.retry[i].rflags = IWN_RFLAG_HT
3627 } else if (IEEE80211_IS_CHAN_HT(c)) {
3628 linkq.retry[i].plcp = iwn_siso_mcs_to_plcp[ridx]
3630 linkq.retry[i].rflags = IWN_RFLAG_HT;
3635 linkq.retry[i].plcp = rinfo->plcp;
3636 linkq.retry[i].rflags = rinfo->flags;
3638 linkq.retry[i].rflags |= IWN_RFLAG_ANT(txant);
3639 ridx = iwn_prev_ridx[ridx];
3642 if (sc->sc_debug & IWN_DEBUG_STATE) {
3643 kprintf("%s: set link quality for node %d, mimo %d ssmask %d\n",
3644 __func__, id, linkq.mimo, linkq.antmsk_1stream);
3645 kprintf("%s:", __func__);
3646 for (i = 0; i < IWN_MAX_TX_RETRIES; i++)
3647 kprintf(" %d:%x", linkq.retry[i].plcp,
3648 linkq.retry[i].rflags);
3652 return iwn_cmd(sc, IWN_CMD_LINK_QUALITY, &linkq, sizeof linkq, async);
3656 * Broadcast node is used to send group-addressed and management frames.
3659 iwn_add_broadcast_node(struct iwn_softc *sc, int async)
3661 const struct iwn_hal *hal = sc->sc_hal;
3662 struct ifnet *ifp = sc->sc_ifp;
3663 struct iwn_node_info node;
3666 memset(&node, 0, sizeof node);
3667 IEEE80211_ADDR_COPY(node.macaddr, ifp->if_broadcastaddr);
3668 node.id = hal->broadcast_id;
3669 DPRINTF(sc, IWN_DEBUG_RESET, "%s: adding broadcast node\n", __func__);
3670 error = hal->add_node(sc, &node, async);
3674 error = iwn_set_link_quality(sc, hal->broadcast_id, async);
3679 iwn_wme_update(struct ieee80211com *ic)
3681 #define IWN_EXP2(x) ((1 << (x)) - 1) /* CWmin = 2^ECWmin - 1 */
3682 #define IWN_TXOP_TO_US(v) (v<<5)
3683 struct iwn_softc *sc = ic->ic_ifp->if_softc;
3684 struct iwn_edca_params cmd;
3687 memset(&cmd, 0, sizeof cmd);
3688 cmd.flags = htole32(IWN_EDCA_UPDATE);
3689 for (i = 0; i < WME_NUM_AC; i++) {
3690 const struct wmeParams *wmep =
3691 &ic->ic_wme.wme_chanParams.cap_wmeParams[i];
3692 cmd.ac[i].aifsn = wmep->wmep_aifsn;
3693 cmd.ac[i].cwmin = htole16(IWN_EXP2(wmep->wmep_logcwmin));
3694 cmd.ac[i].cwmax = htole16(IWN_EXP2(wmep->wmep_logcwmax));
3695 cmd.ac[i].txoplimit =
3696 htole16(IWN_TXOP_TO_US(wmep->wmep_txopLimit));
3698 IEEE80211_UNLOCK(ic);
3700 (void) iwn_cmd(sc, IWN_CMD_EDCA_PARAMS, &cmd, sizeof cmd, 1 /*async*/);
3704 #undef IWN_TXOP_TO_US
3709 iwn_update_mcast(struct ifnet *ifp)
3715 iwn_set_led(struct iwn_softc *sc, uint8_t which, uint8_t off, uint8_t on)
3717 struct iwn_cmd_led led;
3719 /* Clear microcode LED ownership. */
3720 IWN_CLRBITS(sc, IWN_LED, IWN_LED_BSM_CTRL);
3723 led.unit = htole32(10000); /* on/off in unit of 100ms */
3726 (void)iwn_cmd(sc, IWN_CMD_SET_LED, &led, sizeof led, 1);
3730 * Set the critical temperature at which the firmware will stop the radio
3734 iwn_set_critical_temp(struct iwn_softc *sc)
3736 struct iwn_critical_temp crit;
3739 IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_CTEMP_STOP_RF);
3741 if (sc->hw_type == IWN_HW_REV_TYPE_5150)
3742 temp = (IWN_CTOK(110) - sc->temp_off) * -5;
3743 else if (sc->hw_type == IWN_HW_REV_TYPE_4965)
3744 temp = IWN_CTOK(110);
3747 memset(&crit, 0, sizeof crit);
3748 crit.tempR = htole32(temp);
3749 DPRINTF(sc, IWN_DEBUG_RESET, "setting critical temp to %d\n",
3751 return iwn_cmd(sc, IWN_CMD_SET_CRITICAL_TEMP, &crit, sizeof crit, 0);
3755 iwn_set_timing(struct iwn_softc *sc, struct ieee80211_node *ni)
3757 struct iwn_cmd_timing cmd;
3760 memset(&cmd, 0, sizeof cmd);
3761 memcpy(&cmd.tstamp, ni->ni_tstamp.data, sizeof (uint64_t));
3762 cmd.bintval = htole16(ni->ni_intval);
3763 cmd.lintval = htole16(10);
3765 /* Compute remaining time until next beacon. */
3766 val = (uint64_t)ni->ni_intval * 1024; /* msecs -> usecs */
3767 mod = le64toh(cmd.tstamp) % val;
3768 cmd.binitval = htole32((uint32_t)(val - mod));
3770 DPRINTF(sc, IWN_DEBUG_RESET, "timing bintval=%u tstamp=%ju, init=%u\n",
3771 ni->ni_intval, le64toh(cmd.tstamp), (uint32_t)(val - mod));
3773 return iwn_cmd(sc, IWN_CMD_TIMING, &cmd, sizeof cmd, 1);
3777 iwn4965_power_calibration(struct iwn_softc *sc, int temp)
3779 struct ifnet *ifp = sc->sc_ifp;
3780 struct ieee80211com *ic = ifp->if_l2com;
3782 /* Adjust TX power if need be (delta >= 3 degC.) */
3783 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: temperature %d->%d\n",
3784 __func__, sc->temp, temp);
3785 if (abs(temp - sc->temp) >= 3) {
3786 /* Record temperature of last calibration. */
3788 (void)iwn4965_set_txpower(sc, ic->ic_bsschan, 1);
3793 * Set TX power for current channel (each rate has its own power settings).
3794 * This function takes into account the regulatory information from EEPROM,
3795 * the current temperature and the current voltage.
3798 iwn4965_set_txpower(struct iwn_softc *sc, struct ieee80211_channel *ch,
3801 /* Fixed-point arithmetic division using a n-bit fractional part. */
3802 #define fdivround(a, b, n) \
3803 ((((1 << n) * (a)) / (b) + (1 << n) / 2) / (1 << n))
3804 /* Linear interpolation. */
3805 #define interpolate(x, x1, y1, x2, y2, n) \
3806 ((y1) + fdivround(((int)(x) - (x1)) * ((y2) - (y1)), (x2) - (x1), n))
3808 static const int tdiv[IWN_NATTEN_GROUPS] = { 9, 8, 8, 8, 6 };
3809 struct ifnet *ifp = sc->sc_ifp;
3810 struct ieee80211com *ic = ifp->if_l2com;
3811 struct iwn_ucode_info *uc = &sc->ucode_info;
3812 struct iwn4965_cmd_txpower cmd;
3813 struct iwn4965_eeprom_chan_samples *chans;
3814 int32_t vdiff, tdiff;
3815 int i, c, grp, maxpwr;
3816 const uint8_t *rf_gain, *dsp_gain;
3819 /* Retrieve channel number. */
3820 chan = ieee80211_chan2ieee(ic, ch);
3821 DPRINTF(sc, IWN_DEBUG_RESET, "setting TX power for channel %d\n",
3824 memset(&cmd, 0, sizeof cmd);
3825 cmd.band = IEEE80211_IS_CHAN_5GHZ(ch) ? 0 : 1;
3828 if (IEEE80211_IS_CHAN_5GHZ(ch)) {
3829 maxpwr = sc->maxpwr5GHz;
3830 rf_gain = iwn4965_rf_gain_5ghz;
3831 dsp_gain = iwn4965_dsp_gain_5ghz;
3833 maxpwr = sc->maxpwr2GHz;
3834 rf_gain = iwn4965_rf_gain_2ghz;
3835 dsp_gain = iwn4965_dsp_gain_2ghz;
3838 /* Compute voltage compensation. */
3839 vdiff = ((int32_t)le32toh(uc->volt) - sc->eeprom_voltage) / 7;
3844 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW,
3845 "%s: voltage compensation=%d (UCODE=%d, EEPROM=%d)\n",
3846 __func__, vdiff, le32toh(uc->volt), sc->eeprom_voltage);
3848 /* Get channel attenuation group. */
3849 if (chan <= 20) /* 1-20 */
3851 else if (chan <= 43) /* 34-43 */
3853 else if (chan <= 70) /* 44-70 */
3855 else if (chan <= 124) /* 71-124 */
3859 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW,
3860 "%s: chan %d, attenuation group=%d\n", __func__, chan, grp);
3862 /* Get channel sub-band. */
3863 for (i = 0; i < IWN_NBANDS; i++)
3864 if (sc->bands[i].lo != 0 &&
3865 sc->bands[i].lo <= chan && chan <= sc->bands[i].hi)
3867 if (i == IWN_NBANDS) /* Can't happen in real-life. */
3869 chans = sc->bands[i].chans;
3870 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW,
3871 "%s: chan %d sub-band=%d\n", __func__, chan, i);
3873 for (c = 0; c < 2; c++) {
3874 uint8_t power, gain, temp;
3875 int maxchpwr, pwr, ridx, idx;
3877 power = interpolate(chan,
3878 chans[0].num, chans[0].samples[c][1].power,
3879 chans[1].num, chans[1].samples[c][1].power, 1);
3880 gain = interpolate(chan,
3881 chans[0].num, chans[0].samples[c][1].gain,
3882 chans[1].num, chans[1].samples[c][1].gain, 1);
3883 temp = interpolate(chan,
3884 chans[0].num, chans[0].samples[c][1].temp,
3885 chans[1].num, chans[1].samples[c][1].temp, 1);
3886 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW,
3887 "%s: Tx chain %d: power=%d gain=%d temp=%d\n",
3888 __func__, c, power, gain, temp);
3890 /* Compute temperature compensation. */
3891 tdiff = ((sc->temp - temp) * 2) / tdiv[grp];
3892 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW,
3893 "%s: temperature compensation=%d (current=%d, EEPROM=%d)\n",
3894 __func__, tdiff, sc->temp, temp);
3896 for (ridx = 0; ridx <= IWN_RIDX_MAX; ridx++) {
3897 /* Convert dBm to half-dBm. */
3898 maxchpwr = sc->maxpwr[chan] * 2;
3900 maxchpwr -= 6; /* MIMO 2T: -3dB */
3904 /* Adjust TX power based on rate. */
3905 if ((ridx % 8) == 5)
3906 pwr -= 15; /* OFDM48: -7.5dB */
3907 else if ((ridx % 8) == 6)
3908 pwr -= 17; /* OFDM54: -8.5dB */
3909 else if ((ridx % 8) == 7)
3910 pwr -= 20; /* OFDM60: -10dB */
3912 pwr -= 10; /* Others: -5dB */
3914 /* Do not exceed channel max TX power. */
3918 idx = gain - (pwr - power) - tdiff - vdiff;
3919 if ((ridx / 8) & 1) /* MIMO */
3920 idx += (int32_t)le32toh(uc->atten[grp][c]);
3923 idx += 9; /* 5GHz */
3924 if (ridx == IWN_RIDX_MAX)
3927 /* Make sure idx stays in a valid range. */
3930 else if (idx > IWN4965_MAX_PWR_INDEX)
3931 idx = IWN4965_MAX_PWR_INDEX;
3933 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW,
3934 "%s: Tx chain %d, rate idx %d: power=%d\n",
3935 __func__, c, ridx, idx);
3936 cmd.power[ridx].rf_gain[c] = rf_gain[idx];
3937 cmd.power[ridx].dsp_gain[c] = dsp_gain[idx];
3941 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW,
3942 "%s: set tx power for chan %d\n", __func__, chan);
3943 return iwn_cmd(sc, IWN_CMD_TXPOWER, &cmd, sizeof cmd, async);
3950 iwn5000_set_txpower(struct iwn_softc *sc, struct ieee80211_channel *ch,
3953 struct iwn5000_cmd_txpower cmd;
3956 * TX power calibration is handled automatically by the firmware
3959 memset(&cmd, 0, sizeof cmd);
3960 cmd.global_limit = 2 * IWN5000_TXPOWER_MAX_DBM; /* 16 dBm */
3961 cmd.flags = IWN5000_TXPOWER_NO_CLOSED;
3962 cmd.srv_limit = IWN5000_TXPOWER_AUTO;
3963 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: setting TX power\n", __func__);
3964 return iwn_cmd(sc, IWN_CMD_TXPOWER_DBM, &cmd, sizeof cmd, async);
3968 * Retrieve the maximum RSSI (in dBm) among receivers.
3971 iwn4965_get_rssi(struct iwn_softc *sc, struct iwn_rx_stat *stat)
3973 struct iwn4965_rx_phystat *phy = (void *)stat->phybuf;
3977 mask = (le16toh(phy->antenna) >> 4) & IWN_ANT_ABC;
3978 agc = (le16toh(phy->agc) >> 7) & 0x7f;
3982 if (mask & IWN_ANT_A) /* Ant A */
3983 rssi = max(rssi, phy->rssi[0]);
3984 if (mask & IWN_ATH_B) /* Ant B */
3985 rssi = max(rssi, phy->rssi[2]);
3986 if (mask & IWN_ANT_C) /* Ant C */
3987 rssi = max(rssi, phy->rssi[4]);
3989 rssi = max(rssi, phy->rssi[0]);
3990 rssi = max(rssi, phy->rssi[2]);
3991 rssi = max(rssi, phy->rssi[4]);
3994 DPRINTF(sc, IWN_DEBUG_RECV, "%s: agc %d mask 0x%x rssi %d %d %d "
3995 "result %d\n", __func__, agc, mask,
3996 phy->rssi[0], phy->rssi[2], phy->rssi[4],
3997 rssi - agc - IWN_RSSI_TO_DBM);
3998 return rssi - agc - IWN_RSSI_TO_DBM;
4002 iwn5000_get_rssi(struct iwn_softc *sc, struct iwn_rx_stat *stat)
4004 struct iwn5000_rx_phystat *phy = (void *)stat->phybuf;
4008 agc = (le32toh(phy->agc) >> 9) & 0x7f;
4010 rssi = MAX(le16toh(phy->rssi[0]) & 0xff,
4011 le16toh(phy->rssi[1]) & 0xff);
4012 rssi = MAX(le16toh(phy->rssi[2]) & 0xff, rssi);
4014 DPRINTF(sc, IWN_DEBUG_RECV, "%s: agc %d rssi %d %d %d "
4015 "result %d\n", __func__, agc,
4016 phy->rssi[0], phy->rssi[1], phy->rssi[2],
4017 rssi - agc - IWN_RSSI_TO_DBM);
4018 return rssi - agc - IWN_RSSI_TO_DBM;
4022 * Retrieve the average noise (in dBm) among receivers.
4025 iwn_get_noise(const struct iwn_rx_general_stats *stats)
4027 int i, total, nbant, noise;
4030 for (i = 0; i < 3; i++) {
4031 if ((noise = le32toh(stats->noise[i]) & 0xff) == 0)
4036 /* There should be at least one antenna but check anyway. */
4037 return (nbant == 0) ? -127 : (total / nbant) - 107;
4041 * Compute temperature (in degC) from last received statistics.
4044 iwn4965_get_temperature(struct iwn_softc *sc)
4046 struct iwn_ucode_info *uc = &sc->ucode_info;
4047 int32_t r1, r2, r3, r4, temp;
4049 r1 = le32toh(uc->temp[0].chan20MHz);
4050 r2 = le32toh(uc->temp[1].chan20MHz);
4051 r3 = le32toh(uc->temp[2].chan20MHz);
4052 r4 = le32toh(sc->rawtemp);
4054 if (r1 == r3) /* Prevents division by 0 (should not happen.) */
4057 /* Sign-extend 23-bit R4 value to 32-bit. */
4058 r4 = (r4 << 8) >> 8;
4059 /* Compute temperature in Kelvin. */
4060 temp = (259 * (r4 - r2)) / (r3 - r1);
4061 temp = (temp * 97) / 100 + 8;
4063 DPRINTF(sc, IWN_DEBUG_ANY, "temperature %dK/%dC\n", temp,
4065 return IWN_KTOC(temp);
4069 iwn5000_get_temperature(struct iwn_softc *sc)
4074 * Temperature is not used by the driver for 5000 Series because
4075 * TX power calibration is handled by firmware. We export it to
4076 * users through the sensor framework though.
4078 temp = le32toh(sc->rawtemp);
4079 if (sc->hw_type == IWN_HW_REV_TYPE_5150) {
4080 temp = (temp / -5) + sc->temp_off;
4081 temp = IWN_KTOC(temp);
4087 * Initialize sensitivity calibration state machine.
4090 iwn_init_sensitivity(struct iwn_softc *sc)
4092 const struct iwn_hal *hal = sc->sc_hal;
4093 struct iwn_calib_state *calib = &sc->calib;
4097 /* Reset calibration state machine. */
4098 memset(calib, 0, sizeof (*calib));
4099 calib->state = IWN_CALIB_STATE_INIT;
4100 calib->cck_state = IWN_CCK_STATE_HIFA;
4101 /* Set initial correlation values. */
4102 calib->ofdm_x1 = sc->limits->min_ofdm_x1;
4103 calib->ofdm_mrc_x1 = sc->limits->min_ofdm_mrc_x1;
4104 calib->ofdm_x4 = sc->limits->min_ofdm_x4;
4105 calib->ofdm_mrc_x4 = sc->limits->min_ofdm_mrc_x4;
4106 calib->cck_x4 = 125;
4107 calib->cck_mrc_x4 = sc->limits->min_cck_mrc_x4;
4108 calib->energy_cck = sc->limits->energy_cck;
4110 /* Write initial sensitivity. */
4111 error = iwn_send_sensitivity(sc);
4115 /* Write initial gains. */
4116 error = hal->init_gains(sc);
4120 /* Request statistics at each beacon interval. */
4122 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: calibrate phy\n", __func__);
4123 return iwn_cmd(sc, IWN_CMD_GET_STATISTICS, &flags, sizeof flags, 1);
4127 * Collect noise and RSSI statistics for the first 20 beacons received
4128 * after association and use them to determine connected antennas and
4129 * to set differential gains.
4132 iwn_collect_noise(struct iwn_softc *sc,
4133 const struct iwn_rx_general_stats *stats)
4135 const struct iwn_hal *hal = sc->sc_hal;
4136 struct iwn_calib_state *calib = &sc->calib;
4140 /* Accumulate RSSI and noise for all 3 antennas. */
4141 for (i = 0; i < 3; i++) {
4142 calib->rssi[i] += le32toh(stats->rssi[i]) & 0xff;
4143 calib->noise[i] += le32toh(stats->noise[i]) & 0xff;
4145 /* NB: We update differential gains only once after 20 beacons. */
4146 if (++calib->nbeacons < 20)
4149 /* Determine highest average RSSI. */
4150 val = MAX(calib->rssi[0], calib->rssi[1]);
4151 val = MAX(calib->rssi[2], val);
4153 /* Determine which antennas are connected. */
4155 for (i = 0; i < 3; i++)
4156 if (val - calib->rssi[i] <= 15 * 20)
4157 sc->chainmask |= 1 << i;
4158 /* If none of the TX antennas are connected, keep at least one. */
4159 if ((sc->chainmask & sc->txchainmask) == 0)
4160 sc->chainmask |= IWN_LSB(sc->txchainmask);
4162 (void)hal->set_gains(sc);
4163 calib->state = IWN_CALIB_STATE_RUN;
4166 /* XXX Disable RX chains with no antennas connected. */
4167 sc->rxon.rxchain = htole16(IWN_RXCHAIN_SEL(sc->chainmask));
4168 (void)iwn_cmd(sc, IWN_CMD_RXON, &sc->rxon, hal->rxonsz, 1);
4173 /* Enable power-saving mode if requested by user. */
4174 if (sc->sc_ic.ic_flags & IEEE80211_F_PMGTON)
4175 (void)iwn_set_pslevel(sc, 0, 3, 1);
4180 iwn4965_init_gains(struct iwn_softc *sc)
4182 struct iwn_phy_calib_gain cmd;
4184 memset(&cmd, 0, sizeof cmd);
4185 cmd.code = IWN4965_PHY_CALIB_DIFF_GAIN;
4186 /* Differential gains initially set to 0 for all 3 antennas. */
4187 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
4188 "%s: setting initial differential gains\n", __func__);
4189 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1);
4193 iwn5000_init_gains(struct iwn_softc *sc)
4195 struct iwn_phy_calib cmd;
4197 memset(&cmd, 0, sizeof cmd);
4198 cmd.code = IWN5000_PHY_CALIB_RESET_NOISE_GAIN;
4201 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
4202 "%s: setting initial differential gains\n", __func__);
4203 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1);
4207 iwn4965_set_gains(struct iwn_softc *sc)
4209 struct iwn_calib_state *calib = &sc->calib;
4210 struct iwn_phy_calib_gain cmd;
4211 int i, delta, noise;
4213 /* Get minimal noise among connected antennas. */
4214 noise = INT_MAX; /* NB: There's at least one antenna. */
4215 for (i = 0; i < 3; i++)
4216 if (sc->chainmask & (1 << i))
4217 noise = MIN(calib->noise[i], noise);
4219 memset(&cmd, 0, sizeof cmd);
4220 cmd.code = IWN4965_PHY_CALIB_DIFF_GAIN;
4221 /* Set differential gains for connected antennas. */
4222 for (i = 0; i < 3; i++) {
4223 if (sc->chainmask & (1 << i)) {
4224 /* Compute attenuation (in unit of 1.5dB). */
4225 delta = (noise - (int32_t)calib->noise[i]) / 30;
4226 /* NB: delta <= 0 */
4227 /* Limit to [-4.5dB,0]. */
4228 cmd.gain[i] = MIN(abs(delta), 3);
4230 cmd.gain[i] |= 1 << 2; /* sign bit */
4233 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
4234 "setting differential gains Ant A/B/C: %x/%x/%x (%x)\n",
4235 cmd.gain[0], cmd.gain[1], cmd.gain[2], sc->chainmask);
4236 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1);
4240 iwn5000_set_gains(struct iwn_softc *sc)
4242 struct iwn_calib_state *calib = &sc->calib;
4243 struct iwn_phy_calib_gain cmd;
4244 int i, ant, delta, div;
4246 /* We collected 20 beacons and !=6050 need a 1.5 factor. */
4247 div = (sc->hw_type == IWN_HW_REV_TYPE_6050) ? 20 : 30;
4249 memset(&cmd, 0, sizeof cmd);
4250 cmd.code = IWN5000_PHY_CALIB_NOISE_GAIN;
4253 /* Get first available RX antenna as referential. */
4254 ant = IWN_LSB(sc->rxchainmask);
4255 /* Set differential gains for other antennas. */
4256 for (i = ant + 1; i < 3; i++) {
4257 if (sc->chainmask & (1 << i)) {
4258 /* The delta is relative to antenna "ant". */
4259 delta = ((int32_t)calib->noise[ant] -
4260 (int32_t)calib->noise[i]) / div;
4261 /* Limit to [-4.5dB,+4.5dB]. */
4262 cmd.gain[i - 1] = MIN(abs(delta), 3);
4264 cmd.gain[i - 1] |= 1 << 2; /* sign bit */
4267 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
4268 "setting differential gains Ant B/C: %x/%x (%x)\n",
4269 cmd.gain[0], cmd.gain[1], sc->chainmask);
4270 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1);
4274 * Tune RF RX sensitivity based on the number of false alarms detected
4275 * during the last beacon period.
4278 iwn_tune_sensitivity(struct iwn_softc *sc, const struct iwn_rx_stats *stats)
4280 #define inc(val, inc, max) \
4281 if ((val) < (max)) { \
4282 if ((val) < (max) - (inc)) \
4288 #define dec(val, dec, min) \
4289 if ((val) > (min)) { \
4290 if ((val) > (min) + (dec)) \
4297 const struct iwn_sensitivity_limits *limits = sc->limits;
4298 struct iwn_calib_state *calib = &sc->calib;
4299 uint32_t val, rxena, fa;
4300 uint32_t energy[3], energy_min;
4301 uint8_t noise[3], noise_ref;
4302 int i, needs_update = 0;
4304 /* Check that we've been enabled long enough. */
4305 rxena = le32toh(stats->general.load);
4309 /* Compute number of false alarms since last call for OFDM. */
4310 fa = le32toh(stats->ofdm.bad_plcp) - calib->bad_plcp_ofdm;
4311 fa += le32toh(stats->ofdm.fa) - calib->fa_ofdm;
4312 fa *= 200 * 1024; /* 200TU */
4314 /* Save counters values for next call. */
4315 calib->bad_plcp_ofdm = le32toh(stats->ofdm.bad_plcp);
4316 calib->fa_ofdm = le32toh(stats->ofdm.fa);
4318 if (fa > 50 * rxena) {
4319 /* High false alarm count, decrease sensitivity. */
4320 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
4321 "%s: OFDM high false alarm count: %u\n", __func__, fa);
4322 inc(calib->ofdm_x1, 1, limits->max_ofdm_x1);
4323 inc(calib->ofdm_mrc_x1, 1, limits->max_ofdm_mrc_x1);
4324 inc(calib->ofdm_x4, 1, limits->max_ofdm_x4);
4325 inc(calib->ofdm_mrc_x4, 1, limits->max_ofdm_mrc_x4);
4327 } else if (fa < 5 * rxena) {
4328 /* Low false alarm count, increase sensitivity. */
4329 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
4330 "%s: OFDM low false alarm count: %u\n", __func__, fa);
4331 dec(calib->ofdm_x1, 1, limits->min_ofdm_x1);
4332 dec(calib->ofdm_mrc_x1, 1, limits->min_ofdm_mrc_x1);
4333 dec(calib->ofdm_x4, 1, limits->min_ofdm_x4);
4334 dec(calib->ofdm_mrc_x4, 1, limits->min_ofdm_mrc_x4);
4337 /* Compute maximum noise among 3 receivers. */
4338 for (i = 0; i < 3; i++)
4339 noise[i] = (le32toh(stats->general.noise[i]) >> 8) & 0xff;
4340 val = MAX(noise[0], noise[1]);
4341 val = MAX(noise[2], val);
4342 /* Insert it into our samples table. */
4343 calib->noise_samples[calib->cur_noise_sample] = val;
4344 calib->cur_noise_sample = (calib->cur_noise_sample + 1) % 20;
4346 /* Compute maximum noise among last 20 samples. */
4347 noise_ref = calib->noise_samples[0];
4348 for (i = 1; i < 20; i++)
4349 noise_ref = MAX(noise_ref, calib->noise_samples[i]);
4351 /* Compute maximum energy among 3 receivers. */
4352 for (i = 0; i < 3; i++)
4353 energy[i] = le32toh(stats->general.energy[i]);
4354 val = MIN(energy[0], energy[1]);
4355 val = MIN(energy[2], val);
4356 /* Insert it into our samples table. */
4357 calib->energy_samples[calib->cur_energy_sample] = val;
4358 calib->cur_energy_sample = (calib->cur_energy_sample + 1) % 10;
4360 /* Compute minimum energy among last 10 samples. */
4361 energy_min = calib->energy_samples[0];
4362 for (i = 1; i < 10; i++)
4363 energy_min = MAX(energy_min, calib->energy_samples[i]);
4366 /* Compute number of false alarms since last call for CCK. */
4367 fa = le32toh(stats->cck.bad_plcp) - calib->bad_plcp_cck;
4368 fa += le32toh(stats->cck.fa) - calib->fa_cck;
4369 fa *= 200 * 1024; /* 200TU */
4371 /* Save counters values for next call. */
4372 calib->bad_plcp_cck = le32toh(stats->cck.bad_plcp);
4373 calib->fa_cck = le32toh(stats->cck.fa);
4375 if (fa > 50 * rxena) {
4376 /* High false alarm count, decrease sensitivity. */
4377 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
4378 "%s: CCK high false alarm count: %u\n", __func__, fa);
4379 calib->cck_state = IWN_CCK_STATE_HIFA;
4382 if (calib->cck_x4 > 160) {
4383 calib->noise_ref = noise_ref;
4384 if (calib->energy_cck > 2)
4385 dec(calib->energy_cck, 2, energy_min);
4387 if (calib->cck_x4 < 160) {
4388 calib->cck_x4 = 161;
4391 inc(calib->cck_x4, 3, limits->max_cck_x4);
4393 inc(calib->cck_mrc_x4, 3, limits->max_cck_mrc_x4);
4395 } else if (fa < 5 * rxena) {
4396 /* Low false alarm count, increase sensitivity. */
4397 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
4398 "%s: CCK low false alarm count: %u\n", __func__, fa);
4399 calib->cck_state = IWN_CCK_STATE_LOFA;
4402 if (calib->cck_state != IWN_CCK_STATE_INIT &&
4403 (((int32_t)calib->noise_ref - (int32_t)noise_ref) > 2 ||
4404 calib->low_fa > 100)) {
4405 inc(calib->energy_cck, 2, limits->min_energy_cck);
4406 dec(calib->cck_x4, 3, limits->min_cck_x4);
4407 dec(calib->cck_mrc_x4, 3, limits->min_cck_mrc_x4);
4410 /* Not worth to increase or decrease sensitivity. */
4411 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
4412 "%s: CCK normal false alarm count: %u\n", __func__, fa);
4414 calib->noise_ref = noise_ref;
4416 if (calib->cck_state == IWN_CCK_STATE_HIFA) {
4417 /* Previous interval had many false alarms. */
4418 dec(calib->energy_cck, 8, energy_min);
4420 calib->cck_state = IWN_CCK_STATE_INIT;
4424 (void)iwn_send_sensitivity(sc);
4430 iwn_send_sensitivity(struct iwn_softc *sc)
4432 struct iwn_calib_state *calib = &sc->calib;
4433 struct iwn_sensitivity_cmd cmd;
4435 memset(&cmd, 0, sizeof cmd);
4436 cmd.which = IWN_SENSITIVITY_WORKTBL;
4437 /* OFDM modulation. */
4438 cmd.corr_ofdm_x1 = htole16(calib->ofdm_x1);
4439 cmd.corr_ofdm_mrc_x1 = htole16(calib->ofdm_mrc_x1);
4440 cmd.corr_ofdm_x4 = htole16(calib->ofdm_x4);
4441 cmd.corr_ofdm_mrc_x4 = htole16(calib->ofdm_mrc_x4);
4442 cmd.energy_ofdm = htole16(sc->limits->energy_ofdm);
4443 cmd.energy_ofdm_th = htole16(62);
4444 /* CCK modulation. */
4445 cmd.corr_cck_x4 = htole16(calib->cck_x4);
4446 cmd.corr_cck_mrc_x4 = htole16(calib->cck_mrc_x4);
4447 cmd.energy_cck = htole16(calib->energy_cck);
4448 /* Barker modulation: use default values. */
4449 cmd.corr_barker = htole16(190);
4450 cmd.corr_barker_mrc = htole16(390);
4452 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
4453 "%s: set sensitivity %d/%d/%d/%d/%d/%d/%d\n", __func__,
4454 calib->ofdm_x1, calib->ofdm_mrc_x1, calib->ofdm_x4,
4455 calib->ofdm_mrc_x4, calib->cck_x4,
4456 calib->cck_mrc_x4, calib->energy_cck);
4457 return iwn_cmd(sc, IWN_CMD_SET_SENSITIVITY, &cmd, sizeof cmd, 1);
4461 * Set STA mode power saving level (between 0 and 5).
4462 * Level 0 is CAM (Continuously Aware Mode), 5 is for maximum power saving.
4465 iwn_set_pslevel(struct iwn_softc *sc, int dtim, int level, int async)
4467 const struct iwn_pmgt *pmgt;
4468 struct iwn_pmgt_cmd cmd;
4469 uint32_t max, skip_dtim;
4473 /* Select which PS parameters to use. */
4475 pmgt = &iwn_pmgt[0][level];
4476 else if (dtim <= 10)
4477 pmgt = &iwn_pmgt[1][level];
4479 pmgt = &iwn_pmgt[2][level];
4481 memset(&cmd, 0, sizeof cmd);
4482 if (level != 0) /* not CAM */
4483 cmd.flags |= htole16(IWN_PS_ALLOW_SLEEP);
4485 cmd.flags |= htole16(IWN_PS_FAST_PD);
4486 /* Retrieve PCIe Active State Power Management (ASPM). */
4487 tmp = pci_read_config(sc->sc_dev, sc->sc_cap_off + 0x10, 1);
4488 if (!(tmp & 0x1)) /* L0s Entry disabled. */
4489 cmd.flags |= htole16(IWN_PS_PCI_PMGT);
4490 cmd.rxtimeout = htole32(pmgt->rxtimeout * 1024);
4491 cmd.txtimeout = htole32(pmgt->txtimeout * 1024);
4497 skip_dtim = pmgt->skip_dtim;
4498 if (skip_dtim != 0) {
4499 cmd.flags |= htole16(IWN_PS_SLEEP_OVER_DTIM);
4500 max = pmgt->intval[4];
4501 if (max == (uint32_t)-1)
4502 max = dtim * (skip_dtim + 1);
4503 else if (max > dtim)
4504 max = (max / dtim) * dtim;
4507 for (i = 0; i < 5; i++)
4508 cmd.intval[i] = htole32(MIN(max, pmgt->intval[i]));
4510 DPRINTF(sc, IWN_DEBUG_RESET, "setting power saving level to %d\n",
4512 return iwn_cmd(sc, IWN_CMD_SET_POWER_MODE, &cmd, sizeof cmd, async);
4516 iwn_config(struct iwn_softc *sc)
4518 const struct iwn_hal *hal = sc->sc_hal;
4519 struct ifnet *ifp = sc->sc_ifp;
4520 struct ieee80211com *ic = ifp->if_l2com;
4521 struct iwn_bluetooth bluetooth;
4526 /* Configure valid TX chains for 5000 Series. */
4527 if (sc->hw_type != IWN_HW_REV_TYPE_4965) {
4528 txmask = htole32(sc->txchainmask);
4529 DPRINTF(sc, IWN_DEBUG_RESET,
4530 "%s: configuring valid TX chains 0x%x\n", __func__, txmask);
4531 error = iwn_cmd(sc, IWN5000_CMD_TX_ANT_CONFIG, &txmask,
4534 device_printf(sc->sc_dev,
4535 "%s: could not configure valid TX chains, "
4536 "error %d\n", __func__, error);
4541 /* Configure bluetooth coexistence. */
4542 memset(&bluetooth, 0, sizeof bluetooth);
4543 bluetooth.flags = IWN_BT_COEX_CHAN_ANN | IWN_BT_COEX_BT_PRIO;
4544 bluetooth.lead_time = IWN_BT_LEAD_TIME_DEF;
4545 bluetooth.max_kill = IWN_BT_MAX_KILL_DEF;
4546 DPRINTF(sc, IWN_DEBUG_RESET, "%s: config bluetooth coexistence\n",
4548 error = iwn_cmd(sc, IWN_CMD_BT_COEX, &bluetooth, sizeof bluetooth, 0);
4550 device_printf(sc->sc_dev,
4551 "%s: could not configure bluetooth coexistence, error %d\n",
4556 /* Set mode, channel, RX filter and enable RX. */
4557 memset(&sc->rxon, 0, sizeof (struct iwn_rxon));
4558 IEEE80211_ADDR_COPY(sc->rxon.myaddr, IF_LLADDR(ifp));
4559 IEEE80211_ADDR_COPY(sc->rxon.wlap, IF_LLADDR(ifp));
4560 sc->rxon.chan = ieee80211_chan2ieee(ic, ic->ic_curchan);
4561 sc->rxon.flags = htole32(IWN_RXON_TSF | IWN_RXON_CTS_TO_SELF);
4562 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan))
4563 sc->rxon.flags |= htole32(IWN_RXON_AUTO | IWN_RXON_24GHZ);
4564 switch (ic->ic_opmode) {
4565 case IEEE80211_M_STA:
4566 sc->rxon.mode = IWN_MODE_STA;
4567 sc->rxon.filter = htole32(IWN_FILTER_MULTICAST);
4569 case IEEE80211_M_MONITOR:
4570 sc->rxon.mode = IWN_MODE_MONITOR;
4571 sc->rxon.filter = htole32(IWN_FILTER_MULTICAST |
4572 IWN_FILTER_CTL | IWN_FILTER_PROMISC);
4575 /* Should not get there. */
4578 sc->rxon.cck_mask = 0x0f; /* not yet negotiated */
4579 sc->rxon.ofdm_mask = 0xff; /* not yet negotiated */
4580 sc->rxon.ht_single_mask = 0xff;
4581 sc->rxon.ht_dual_mask = 0xff;
4582 sc->rxon.ht_triple_mask = 0xff;
4584 IWN_RXCHAIN_VALID(sc->rxchainmask) |
4585 IWN_RXCHAIN_MIMO_COUNT(2) |
4586 IWN_RXCHAIN_IDLE_COUNT(2);
4587 sc->rxon.rxchain = htole16(rxchain);
4588 DPRINTF(sc, IWN_DEBUG_RESET, "%s: setting configuration\n", __func__);
4589 error = iwn_cmd(sc, IWN_CMD_RXON, &sc->rxon, hal->rxonsz, 0);
4591 device_printf(sc->sc_dev,
4592 "%s: RXON command failed\n", __func__);
4596 error = iwn_add_broadcast_node(sc, 0);
4598 device_printf(sc->sc_dev,
4599 "%s: could not add broadcast node\n", __func__);
4603 /* Configuration has changed, set TX power accordingly. */
4604 error = hal->set_txpower(sc, ic->ic_curchan, 0);
4606 device_printf(sc->sc_dev,
4607 "%s: could not set TX power\n", __func__);
4611 error = iwn_set_critical_temp(sc);
4613 device_printf(sc->sc_dev,
4614 "%s: ccould not set critical temperature\n", __func__);
4618 /* Set power saving level to CAM during initialization. */
4619 error = iwn_set_pslevel(sc, 0, 0, 0);
4621 device_printf(sc->sc_dev,
4622 "%s: could not set power saving level\n", __func__);
4629 iwn_scan(struct iwn_softc *sc)
4631 struct ifnet *ifp = sc->sc_ifp;
4632 struct ieee80211com *ic = ifp->if_l2com;
4633 struct ieee80211_scan_state *ss = ic->ic_scan; /*XXX*/
4634 struct iwn_scan_hdr *hdr;
4635 struct iwn_cmd_data *tx;
4636 struct iwn_scan_essid *essid;
4637 struct iwn_scan_chan *chan;
4638 struct ieee80211_frame *wh;
4639 struct ieee80211_rateset *rs;
4640 struct ieee80211_channel *c;
4641 int buflen, error, nrates;
4643 uint8_t *buf, *frm, txant;
4645 buf = kmalloc(IWN_SCAN_MAXSZ, M_DEVBUF, M_INTWAIT | M_ZERO);
4647 device_printf(sc->sc_dev,
4648 "%s: could not allocate buffer for scan command\n",
4652 hdr = (struct iwn_scan_hdr *)buf;
4655 * Move to the next channel if no frames are received within 10ms
4656 * after sending the probe request.
4658 hdr->quiet_time = htole16(10); /* timeout in milliseconds */
4659 hdr->quiet_threshold = htole16(1); /* min # of packets */
4661 /* Select antennas for scanning. */
4663 IWN_RXCHAIN_VALID(sc->rxchainmask) |
4664 IWN_RXCHAIN_FORCE_MIMO_SEL(sc->rxchainmask) |
4665 IWN_RXCHAIN_DRIVER_FORCE;
4666 if (IEEE80211_IS_CHAN_A(ic->ic_curchan) &&
4667 sc->hw_type == IWN_HW_REV_TYPE_4965) {
4668 /* Ant A must be avoided in 5GHz because of an HW bug. */
4669 rxchain |= IWN_RXCHAIN_FORCE_SEL(IWN_ANT_BC);
4670 } else /* Use all available RX antennas. */
4671 rxchain |= IWN_RXCHAIN_FORCE_SEL(sc->rxchainmask);
4672 hdr->rxchain = htole16(rxchain);
4673 hdr->filter = htole32(IWN_FILTER_MULTICAST | IWN_FILTER_BEACON);
4675 tx = (struct iwn_cmd_data *)(hdr + 1);
4676 tx->flags = htole32(IWN_TX_AUTO_SEQ);
4677 tx->id = sc->sc_hal->broadcast_id;
4678 tx->lifetime = htole32(IWN_LIFETIME_INFINITE);
4680 if (IEEE80211_IS_CHAN_A(ic->ic_curchan)) {
4681 /* Send probe requests at 6Mbps. */
4682 tx->plcp = iwn_rates[IWN_RIDX_OFDM6].plcp;
4683 rs = &ic->ic_sup_rates[IEEE80211_MODE_11A];
4685 hdr->flags = htole32(IWN_RXON_24GHZ | IWN_RXON_AUTO);
4686 /* Send probe requests at 1Mbps. */
4687 tx->plcp = iwn_rates[IWN_RIDX_CCK1].plcp;
4688 tx->rflags = IWN_RFLAG_CCK;
4689 rs = &ic->ic_sup_rates[IEEE80211_MODE_11G];
4691 /* Use the first valid TX antenna. */
4692 txant = IWN_LSB(sc->txchainmask);
4693 tx->rflags |= IWN_RFLAG_ANT(txant);
4695 essid = (struct iwn_scan_essid *)(tx + 1);
4696 if (ss->ss_ssid[0].len != 0) {
4697 essid[0].id = IEEE80211_ELEMID_SSID;
4698 essid[0].len = ss->ss_ssid[0].len;
4699 memcpy(essid[0].data, ss->ss_ssid[0].ssid, ss->ss_ssid[0].len);
4703 * Build a probe request frame. Most of the following code is a
4704 * copy & paste of what is done in net80211.
4706 wh = (struct ieee80211_frame *)(essid + 20);
4707 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT |
4708 IEEE80211_FC0_SUBTYPE_PROBE_REQ;
4709 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS;
4710 IEEE80211_ADDR_COPY(wh->i_addr1, ifp->if_broadcastaddr);
4711 IEEE80211_ADDR_COPY(wh->i_addr2, IF_LLADDR(ifp));
4712 IEEE80211_ADDR_COPY(wh->i_addr3, ifp->if_broadcastaddr);
4713 *(uint16_t *)&wh->i_dur[0] = 0; /* filled by HW */
4714 *(uint16_t *)&wh->i_seq[0] = 0; /* filled by HW */
4716 frm = (uint8_t *)(wh + 1);
4719 *frm++ = IEEE80211_ELEMID_SSID;
4720 *frm++ = ss->ss_ssid[0].len;
4721 memcpy(frm, ss->ss_ssid[0].ssid, ss->ss_ssid[0].len);
4722 frm += ss->ss_ssid[0].len;
4724 /* Add supported rates IE. */
4725 *frm++ = IEEE80211_ELEMID_RATES;
4726 nrates = rs->rs_nrates;
4727 if (nrates > IEEE80211_RATE_SIZE)
4728 nrates = IEEE80211_RATE_SIZE;
4730 memcpy(frm, rs->rs_rates, nrates);
4733 /* Add supported xrates IE. */
4734 if (rs->rs_nrates > IEEE80211_RATE_SIZE) {
4735 nrates = rs->rs_nrates - IEEE80211_RATE_SIZE;
4736 *frm++ = IEEE80211_ELEMID_XRATES;
4737 *frm++ = (uint8_t)nrates;
4738 memcpy(frm, rs->rs_rates + IEEE80211_RATE_SIZE, nrates);
4742 /* Set length of probe request. */
4743 tx->len = htole16(frm - (uint8_t *)wh);
4746 chan = (struct iwn_scan_chan *)frm;
4747 chan->chan = htole16(ieee80211_chan2ieee(ic, c));
4749 if (ss->ss_nssid > 0)
4750 chan->flags |= htole32(IWN_CHAN_NPBREQS(1));
4751 chan->dsp_gain = 0x6e;
4752 if (IEEE80211_IS_CHAN_5GHZ(c) &&
4753 !(c->ic_flags & IEEE80211_CHAN_PASSIVE)) {
4754 chan->rf_gain = 0x3b;
4755 chan->active = htole16(24);
4756 chan->passive = htole16(110);
4757 chan->flags |= htole32(IWN_CHAN_ACTIVE);
4758 } else if (IEEE80211_IS_CHAN_5GHZ(c)) {
4759 chan->rf_gain = 0x3b;
4760 chan->active = htole16(24);
4761 if (sc->rxon.associd)
4762 chan->passive = htole16(78);
4764 chan->passive = htole16(110);
4765 hdr->crc_threshold = 0xffff;
4766 } else if (!(c->ic_flags & IEEE80211_CHAN_PASSIVE)) {
4767 chan->rf_gain = 0x28;
4768 chan->active = htole16(36);
4769 chan->passive = htole16(120);
4770 chan->flags |= htole32(IWN_CHAN_ACTIVE);
4772 chan->rf_gain = 0x28;
4773 chan->active = htole16(36);
4774 if (sc->rxon.associd)
4775 chan->passive = htole16(88);
4777 chan->passive = htole16(120);
4778 hdr->crc_threshold = 0xffff;
4781 DPRINTF(sc, IWN_DEBUG_STATE,
4782 "%s: chan %u flags 0x%x rf_gain 0x%x "
4783 "dsp_gain 0x%x active 0x%x passive 0x%x\n", __func__,
4784 chan->chan, chan->flags, chan->rf_gain, chan->dsp_gain,
4785 chan->active, chan->passive);
4789 buflen = (uint8_t *)chan - buf;
4790 hdr->len = htole16(buflen);
4792 DPRINTF(sc, IWN_DEBUG_STATE, "sending scan command nchan=%d\n",
4794 error = iwn_cmd(sc, IWN_CMD_SCAN, buf, buflen, 1);
4795 kfree(buf, M_DEVBUF);
4800 iwn_auth(struct iwn_softc *sc, struct ieee80211vap *vap)
4802 const struct iwn_hal *hal = sc->sc_hal;
4803 struct ifnet *ifp = sc->sc_ifp;
4804 struct ieee80211com *ic = ifp->if_l2com;
4805 struct ieee80211_node *ni = vap->iv_bss;
4808 sc->calib.state = IWN_CALIB_STATE_INIT;
4810 /* Update adapter configuration. */
4811 IEEE80211_ADDR_COPY(sc->rxon.bssid, ni->ni_bssid);
4812 sc->rxon.chan = htole16(ieee80211_chan2ieee(ic, ni->ni_chan));
4813 sc->rxon.flags = htole32(IWN_RXON_TSF | IWN_RXON_CTS_TO_SELF);
4814 if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan))
4815 sc->rxon.flags |= htole32(IWN_RXON_AUTO | IWN_RXON_24GHZ);
4816 if (ic->ic_flags & IEEE80211_F_SHSLOT)
4817 sc->rxon.flags |= htole32(IWN_RXON_SHSLOT);
4818 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
4819 sc->rxon.flags |= htole32(IWN_RXON_SHPREAMBLE);
4820 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) {
4821 sc->rxon.cck_mask = 0;
4822 sc->rxon.ofdm_mask = 0x15;
4823 } else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) {
4824 sc->rxon.cck_mask = 0x03;
4825 sc->rxon.ofdm_mask = 0;
4827 /* XXX assume 802.11b/g */
4828 sc->rxon.cck_mask = 0x0f;
4829 sc->rxon.ofdm_mask = 0x15;
4831 DPRINTF(sc, IWN_DEBUG_STATE,
4832 "%s: config chan %d mode %d flags 0x%x cck 0x%x ofdm 0x%x "
4833 "ht_single 0x%x ht_dual 0x%x rxchain 0x%x "
4834 "myaddr %6D wlap %6D bssid %6D associd %d filter 0x%x\n",
4836 le16toh(sc->rxon.chan), sc->rxon.mode, le32toh(sc->rxon.flags),
4837 sc->rxon.cck_mask, sc->rxon.ofdm_mask,
4838 sc->rxon.ht_single_mask, sc->rxon.ht_dual_mask,
4839 le16toh(sc->rxon.rxchain),
4840 sc->rxon.myaddr, ":", sc->rxon.wlap, ":", sc->rxon.bssid, ":",
4841 le16toh(sc->rxon.associd), le32toh(sc->rxon.filter));
4842 error = iwn_cmd(sc, IWN_CMD_RXON, &sc->rxon, hal->rxonsz, 1);
4844 device_printf(sc->sc_dev,
4845 "%s: RXON command failed, error %d\n", __func__, error);
4849 /* Configuration has changed, set TX power accordingly. */
4850 error = hal->set_txpower(sc, ni->ni_chan, 1);
4852 device_printf(sc->sc_dev,
4853 "%s: could not set Tx power, error %d\n", __func__, error);
4857 * Reconfiguring RXON clears the firmware nodes table so we must
4858 * add the broadcast node again.
4860 error = iwn_add_broadcast_node(sc, 1);
4862 device_printf(sc->sc_dev,
4863 "%s: could not add broadcast node, error %d\n",
4871 * Configure the adapter for associated state.
4874 iwn_run(struct iwn_softc *sc, struct ieee80211vap *vap)
4876 #define MS(v,x) (((v) & x) >> x##_S)
4877 const struct iwn_hal *hal = sc->sc_hal;
4878 struct ifnet *ifp = sc->sc_ifp;
4879 struct ieee80211com *ic = ifp->if_l2com;
4880 struct ieee80211_node *ni = vap->iv_bss;
4881 struct iwn_node_info node;
4884 sc->calib.state = IWN_CALIB_STATE_INIT;
4886 if (ic->ic_opmode == IEEE80211_M_MONITOR) {
4887 /* Link LED blinks while monitoring. */
4888 iwn_set_led(sc, IWN_LED_LINK, 5, 5);
4891 error = iwn_set_timing(sc, ni);
4893 device_printf(sc->sc_dev,
4894 "%s: could not set timing, error %d\n", __func__, error);
4898 /* Update adapter configuration. */
4899 IEEE80211_ADDR_COPY(sc->rxon.bssid, ni->ni_bssid);
4900 sc->rxon.chan = htole16(ieee80211_chan2ieee(ic, ni->ni_chan));
4901 sc->rxon.associd = htole16(IEEE80211_AID(ni->ni_associd));
4902 /* Short preamble and slot time are negotiated when associating. */
4903 sc->rxon.flags &= ~htole32(IWN_RXON_SHPREAMBLE | IWN_RXON_SHSLOT);
4904 sc->rxon.flags |= htole32(IWN_RXON_TSF | IWN_RXON_CTS_TO_SELF);
4905 if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan))
4906 sc->rxon.flags |= htole32(IWN_RXON_AUTO | IWN_RXON_24GHZ);
4908 sc->rxon.flags &= ~htole32(IWN_RXON_AUTO | IWN_RXON_24GHZ);
4909 if (ic->ic_flags & IEEE80211_F_SHSLOT)
4910 sc->rxon.flags |= htole32(IWN_RXON_SHSLOT);
4911 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
4912 sc->rxon.flags |= htole32(IWN_RXON_SHPREAMBLE);
4913 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) {
4914 sc->rxon.cck_mask = 0;
4915 sc->rxon.ofdm_mask = 0x15;
4916 } else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) {
4917 sc->rxon.cck_mask = 0x03;
4918 sc->rxon.ofdm_mask = 0;
4920 /* XXX assume 802.11b/g */
4921 sc->rxon.cck_mask = 0x0f;
4922 sc->rxon.ofdm_mask = 0x15;
4925 if (IEEE80211_IS_CHAN_HT(ni->ni_chan)) {
4926 sc->rxon.flags &= ~htole32(IWN_RXON_HT);
4927 if (IEEE80211_IS_CHAN_HT40U(ni->ni_chan))
4928 sc->rxon.flags |= htole32(IWN_RXON_HT40U);
4929 else if (IEEE80211_IS_CHAN_HT40D(ni->ni_chan))
4930 sc->rxon.flags |= htole32(IWN_RXON_HT40D);
4932 sc->rxon.flags |= htole32(IWN_RXON_HT20);
4933 sc->rxon.rxchain = htole16(
4934 IWN_RXCHAIN_VALID(3)
4935 | IWN_RXCHAIN_MIMO_COUNT(3)
4936 | IWN_RXCHAIN_IDLE_COUNT(1)
4937 | IWN_RXCHAIN_MIMO_FORCE);
4939 maxrxampdu = MS(ni->ni_htparam, IEEE80211_HTCAP_MAXRXAMPDU);
4940 ampdudensity = MS(ni->ni_htparam, IEEE80211_HTCAP_MPDUDENSITY);
4942 maxrxampdu = ampdudensity = 0;
4944 sc->rxon.filter |= htole32(IWN_FILTER_BSS);
4946 DPRINTF(sc, IWN_DEBUG_STATE,
4947 "%s: config chan %d mode %d flags 0x%x cck 0x%x ofdm 0x%x "
4948 "ht_single 0x%x ht_dual 0x%x rxchain 0x%x "
4949 "myaddr %6D wlap %6D bssid %6D associd %d filter 0x%x\n",
4951 le16toh(sc->rxon.chan), sc->rxon.mode, le32toh(sc->rxon.flags),
4952 sc->rxon.cck_mask, sc->rxon.ofdm_mask,
4953 sc->rxon.ht_single_mask, sc->rxon.ht_dual_mask,
4954 le16toh(sc->rxon.rxchain),
4955 sc->rxon.myaddr, ":", sc->rxon.wlap, ":", sc->rxon.bssid, ":",
4956 le16toh(sc->rxon.associd), le32toh(sc->rxon.filter));
4957 error = iwn_cmd(sc, IWN_CMD_RXON, &sc->rxon, hal->rxonsz, 1);
4959 device_printf(sc->sc_dev,
4960 "%s: could not update configuration, error %d\n",
4965 /* Configuration has changed, set TX power accordingly. */
4966 error = hal->set_txpower(sc, ni->ni_chan, 1);
4968 device_printf(sc->sc_dev,
4969 "%s: could not set Tx power, error %d\n", __func__, error);
4974 memset(&node, 0, sizeof node);
4975 IEEE80211_ADDR_COPY(node.macaddr, ni->ni_macaddr);
4976 node.id = IWN_ID_BSS;
4978 node.htflags = htole32(IWN_AMDPU_SIZE_FACTOR(3) |
4979 IWN_AMDPU_DENSITY(5)); /* 2us */
4981 DPRINTF(sc, IWN_DEBUG_STATE, "%s: add BSS node, id %d htflags 0x%x\n",
4982 __func__, node.id, le32toh(node.htflags));
4983 error = hal->add_node(sc, &node, 1);
4985 device_printf(sc->sc_dev, "could not add BSS node\n");
4988 DPRINTF(sc, IWN_DEBUG_STATE, "setting link quality for node %d\n",
4990 error = iwn_set_link_quality(sc, node.id, 1);
4992 device_printf(sc->sc_dev,
4993 "%s: could not setup MRR for node %d, error %d\n",
4994 __func__, node.id, error);
4998 error = iwn_init_sensitivity(sc);
5000 device_printf(sc->sc_dev,
5001 "%s: could not set sensitivity, error %d\n",
5006 /* Start periodic calibration timer. */
5007 sc->calib.state = IWN_CALIB_STATE_ASSOC;
5008 iwn_calib_reset(sc);
5010 /* Link LED always on while associated. */
5011 iwn_set_led(sc, IWN_LED_LINK, 0, 1);
5019 * This function is called by upper layer when an ADDBA request is received
5020 * from another STA and before the ADDBA response is sent.
5023 iwn_ampdu_rx_start(struct ieee80211com *ic, struct ieee80211_node *ni,
5026 struct ieee80211_rx_ba *ba = &ni->ni_rx_ba[tid];
5027 struct iwn_softc *sc = ic->ic_softc;
5028 struct iwn_node *wn = (void *)ni;
5029 struct iwn_node_info node;
5031 memset(&node, 0, sizeof node);
5033 node.control = IWN_NODE_UPDATE;
5034 node.flags = IWN_FLAG_SET_ADDBA;
5035 node.addba_tid = tid;
5036 node.addba_ssn = htole16(ba->ba_winstart);
5037 DPRINTF(sc, IWN_DEBUG_RECV, "ADDBA RA=%d TID=%d SSN=%d\n",
5038 wn->id, tid, ba->ba_winstart));
5039 return sc->sc_hal->add_node(sc, &node, 1);
5043 * This function is called by upper layer on teardown of an HT-immediate
5044 * Block Ack agreement (eg. uppon receipt of a DELBA frame.)
5047 iwn_ampdu_rx_stop(struct ieee80211com *ic, struct ieee80211_node *ni,
5050 struct iwn_softc *sc = ic->ic_softc;
5051 struct iwn_node *wn = (void *)ni;
5052 struct iwn_node_info node;
5054 memset(&node, 0, sizeof node);
5056 node.control = IWN_NODE_UPDATE;
5057 node.flags = IWN_FLAG_SET_DELBA;
5058 node.delba_tid = tid;
5059 DPRINTF(sc, IWN_DEBUG_RECV, "DELBA RA=%d TID=%d\n", wn->id, tid);
5060 (void)sc->sc_hal->add_node(sc, &node, 1);
5064 * This function is called by upper layer when an ADDBA response is received
5068 iwn_ampdu_tx_start(struct ieee80211com *ic, struct ieee80211_node *ni,
5071 struct ieee80211_tx_ba *ba = &ni->ni_tx_ba[tid];
5072 struct iwn_softc *sc = ic->ic_softc;
5073 const struct iwn_hal *hal = sc->sc_hal;
5074 struct iwn_node *wn = (void *)ni;
5075 struct iwn_node_info node;
5078 /* Enable TX for the specified RA/TID. */
5079 wn->disable_tid &= ~(1 << tid);
5080 memset(&node, 0, sizeof node);
5082 node.control = IWN_NODE_UPDATE;
5083 node.flags = IWN_FLAG_SET_DISABLE_TID;
5084 node.disable_tid = htole16(wn->disable_tid);
5085 error = hal->add_node(sc, &node, 1);
5089 if ((error = iwn_nic_lock(sc)) != 0)
5091 hal->ampdu_tx_start(sc, ni, tid, ba->ba_winstart);
5097 iwn_ampdu_tx_stop(struct ieee80211com *ic, struct ieee80211_node *ni,
5100 struct ieee80211_tx_ba *ba = &ni->ni_tx_ba[tid];
5101 struct iwn_softc *sc = ic->ic_softc;
5104 error = iwn_nic_lock(sc);
5107 sc->sc_hal->ampdu_tx_stop(sc, tid, ba->ba_winstart);
5112 iwn4965_ampdu_tx_start(struct iwn_softc *sc, struct ieee80211_node *ni,
5113 uint8_t tid, uint16_t ssn)
5115 struct iwn_node *wn = (void *)ni;
5118 /* Stop TX scheduler while we're changing its configuration. */
5119 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid),
5120 IWN4965_TXQ_STATUS_CHGACT);
5122 /* Assign RA/TID translation to the queue. */
5123 iwn_mem_write_2(sc, sc->sched_base + IWN4965_SCHED_TRANS_TBL(qid),
5126 /* Enable chain-building mode for the queue. */
5127 iwn_prph_setbits(sc, IWN4965_SCHED_QCHAIN_SEL, 1 << qid);
5129 /* Set starting sequence number from the ADDBA request. */
5130 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | (ssn & 0xff));
5131 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_RDPTR(qid), ssn);
5133 /* Set scheduler window size. */
5134 iwn_mem_write(sc, sc->sched_base + IWN4965_SCHED_QUEUE_OFFSET(qid),
5136 /* Set scheduler frame limit. */
5137 iwn_mem_write(sc, sc->sched_base + IWN4965_SCHED_QUEUE_OFFSET(qid) + 4,
5138 IWN_SCHED_LIMIT << 16);
5140 /* Enable interrupts for the queue. */
5141 iwn_prph_setbits(sc, IWN4965_SCHED_INTR_MASK, 1 << qid);
5143 /* Mark the queue as active. */
5144 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid),
5145 IWN4965_TXQ_STATUS_ACTIVE | IWN4965_TXQ_STATUS_AGGR_ENA |
5146 iwn_tid2fifo[tid] << 1);
5150 iwn4965_ampdu_tx_stop(struct iwn_softc *sc, uint8_t tid, uint16_t ssn)
5154 /* Stop TX scheduler while we're changing its configuration. */
5155 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid),
5156 IWN4965_TXQ_STATUS_CHGACT);
5158 /* Set starting sequence number from the ADDBA request. */
5159 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | (ssn & 0xff));
5160 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_RDPTR(qid), ssn);
5162 /* Disable interrupts for the queue. */
5163 iwn_prph_clrbits(sc, IWN4965_SCHED_INTR_MASK, 1 << qid);
5165 /* Mark the queue as inactive. */
5166 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid),
5167 IWN4965_TXQ_STATUS_INACTIVE | iwn_tid2fifo[tid] << 1);
5171 iwn5000_ampdu_tx_start(struct iwn_softc *sc, struct ieee80211_node *ni,
5172 uint8_t tid, uint16_t ssn)
5174 struct iwn_node *wn = (void *)ni;
5177 /* Stop TX scheduler while we're changing its configuration. */
5178 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid),
5179 IWN5000_TXQ_STATUS_CHGACT);
5181 /* Assign RA/TID translation to the queue. */
5182 iwn_mem_write_2(sc, sc->sched_base + IWN5000_SCHED_TRANS_TBL(qid),
5185 /* Enable chain-building mode for the queue. */
5186 iwn_prph_setbits(sc, IWN5000_SCHED_QCHAIN_SEL, 1 << qid);
5188 /* Enable aggregation for the queue. */
5189 iwn_prph_setbits(sc, IWN5000_SCHED_AGGR_SEL, 1 << qid);
5191 /* Set starting sequence number from the ADDBA request. */
5192 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | (ssn & 0xff));
5193 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_RDPTR(qid), ssn);
5195 /* Set scheduler window size and frame limit. */
5196 iwn_mem_write(sc, sc->sched_base + IWN5000_SCHED_QUEUE_OFFSET(qid) + 4,
5197 IWN_SCHED_LIMIT << 16 | IWN_SCHED_WINSZ);
5199 /* Enable interrupts for the queue. */
5200 iwn_prph_setbits(sc, IWN5000_SCHED_INTR_MASK, 1 << qid);
5202 /* Mark the queue as active. */
5203 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid),
5204 IWN5000_TXQ_STATUS_ACTIVE | iwn_tid2fifo[tid]);
5208 iwn5000_ampdu_tx_stop(struct iwn_softc *sc, uint8_t tid, uint16_t ssn)
5212 /* Stop TX scheduler while we're changing its configuration. */
5213 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid),
5214 IWN5000_TXQ_STATUS_CHGACT);
5216 /* Disable aggregation for the queue. */
5217 iwn_prph_clrbits(sc, IWN5000_SCHED_AGGR_SEL, 1 << qid);
5219 /* Set starting sequence number from the ADDBA request. */
5220 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | (ssn & 0xff));
5221 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_RDPTR(qid), ssn);
5223 /* Disable interrupts for the queue. */
5224 iwn_prph_clrbits(sc, IWN5000_SCHED_INTR_MASK, 1 << qid);
5226 /* Mark the queue as inactive. */
5227 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid),
5228 IWN5000_TXQ_STATUS_INACTIVE | iwn_tid2fifo[tid]);
5233 * Query calibration tables from the initialization firmware. We do this
5234 * only once at first boot. Called from a process context.
5237 iwn5000_query_calibration(struct iwn_softc *sc)
5239 struct iwn5000_calib_config cmd;
5242 memset(&cmd, 0, sizeof cmd);
5243 cmd.ucode.once.enable = 0xffffffff;
5244 cmd.ucode.once.start = 0xffffffff;
5245 cmd.ucode.once.send = 0xffffffff;
5246 cmd.ucode.flags = 0xffffffff;
5247 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: sending calibration query\n",
5249 error = iwn_cmd(sc, IWN5000_CMD_CALIB_CONFIG, &cmd, sizeof cmd, 0);
5253 /* Wait at most two seconds for calibration to complete. */
5254 if (!(sc->sc_flags & IWN_FLAG_CALIB_DONE))
5255 error = zsleep(sc, sc->sc_ifp->if_serializer, 0, "iwninit", 2 * hz);
5260 * Send calibration results to the runtime firmware. These results were
5261 * obtained on first boot from the initialization firmware.
5264 iwn5000_send_calibration(struct iwn_softc *sc)
5268 for (idx = 0; idx < 5; idx++) {
5269 if (sc->calibcmd[idx].buf == NULL)
5270 continue; /* No results available. */
5271 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
5272 "send calibration result idx=%d len=%d\n",
5273 idx, sc->calibcmd[idx].len);
5274 error = iwn_cmd(sc, IWN_CMD_PHY_CALIB, sc->calibcmd[idx].buf,
5275 sc->calibcmd[idx].len, 0);
5277 device_printf(sc->sc_dev,
5278 "%s: could not send calibration result, error %d\n",
5287 iwn5000_send_wimax_coex(struct iwn_softc *sc)
5289 struct iwn5000_wimax_coex wimax;
5292 if (sc->hw_type == IWN_HW_REV_TYPE_6050) {
5293 /* Enable WiMAX coexistence for combo adapters. */
5295 IWN_WIMAX_COEX_ASSOC_WA_UNMASK |
5296 IWN_WIMAX_COEX_UNASSOC_WA_UNMASK |
5297 IWN_WIMAX_COEX_STA_TABLE_VALID |
5298 IWN_WIMAX_COEX_ENABLE;
5299 memcpy(wimax.events, iwn6050_wimax_events,
5300 sizeof iwn6050_wimax_events);
5304 /* Disable WiMAX coexistence. */
5306 memset(wimax.events, 0, sizeof wimax.events);
5308 DPRINTF(sc, IWN_DEBUG_RESET, "%s: Configuring WiMAX coexistence\n",
5310 return iwn_cmd(sc, IWN5000_CMD_WIMAX_COEX, &wimax, sizeof wimax, 0);
5314 * This function is called after the runtime firmware notifies us of its
5315 * readiness (called in a process context.)
5318 iwn4965_post_alive(struct iwn_softc *sc)
5322 if ((error = iwn_nic_lock(sc)) != 0)
5325 /* Clear TX scheduler state in SRAM. */
5326 sc->sched_base = iwn_prph_read(sc, IWN_SCHED_SRAM_ADDR);
5327 iwn_mem_set_region_4(sc, sc->sched_base + IWN4965_SCHED_CTX_OFF, 0,
5328 IWN4965_SCHED_CTX_LEN / sizeof (uint32_t));
5330 /* Set physical address of TX scheduler rings (1KB aligned.) */
5331 iwn_prph_write(sc, IWN4965_SCHED_DRAM_ADDR, sc->sched_dma.paddr >> 10);
5333 IWN_SETBITS(sc, IWN_FH_TX_CHICKEN, IWN_FH_TX_CHICKEN_SCHED_RETRY);
5335 /* Disable chain mode for all our 16 queues. */
5336 iwn_prph_write(sc, IWN4965_SCHED_QCHAIN_SEL, 0);
5338 for (qid = 0; qid < IWN4965_NTXQUEUES; qid++) {
5339 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_RDPTR(qid), 0);
5340 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | 0);
5342 /* Set scheduler window size. */
5343 iwn_mem_write(sc, sc->sched_base +
5344 IWN4965_SCHED_QUEUE_OFFSET(qid), IWN_SCHED_WINSZ);
5345 /* Set scheduler frame limit. */
5346 iwn_mem_write(sc, sc->sched_base +
5347 IWN4965_SCHED_QUEUE_OFFSET(qid) + 4,
5348 IWN_SCHED_LIMIT << 16);
5351 /* Enable interrupts for all our 16 queues. */
5352 iwn_prph_write(sc, IWN4965_SCHED_INTR_MASK, 0xffff);
5353 /* Identify TX FIFO rings (0-7). */
5354 iwn_prph_write(sc, IWN4965_SCHED_TXFACT, 0xff);
5356 /* Mark TX rings (4 EDCA + cmd + 2 HCCA) as active. */
5357 for (qid = 0; qid < 7; qid++) {
5358 static uint8_t qid2fifo[] = { 3, 2, 1, 0, 4, 5, 6 };
5359 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid),
5360 IWN4965_TXQ_STATUS_ACTIVE | qid2fifo[qid] << 1);
5367 * This function is called after the initialization or runtime firmware
5368 * notifies us of its readiness (called in a process context.)
5371 iwn5000_post_alive(struct iwn_softc *sc)
5375 /* Switch to using ICT interrupt mode. */
5376 iwn5000_ict_reset(sc);
5378 error = iwn_nic_lock(sc);
5382 /* Clear TX scheduler state in SRAM. */
5383 sc->sched_base = iwn_prph_read(sc, IWN_SCHED_SRAM_ADDR);
5384 iwn_mem_set_region_4(sc, sc->sched_base + IWN5000_SCHED_CTX_OFF, 0,
5385 IWN5000_SCHED_CTX_LEN / sizeof (uint32_t));
5387 /* Set physical address of TX scheduler rings (1KB aligned.) */
5388 iwn_prph_write(sc, IWN5000_SCHED_DRAM_ADDR, sc->sched_dma.paddr >> 10);
5390 IWN_SETBITS(sc, IWN_FH_TX_CHICKEN, IWN_FH_TX_CHICKEN_SCHED_RETRY);
5392 /* Enable chain mode for all queues, except command queue. */
5393 iwn_prph_write(sc, IWN5000_SCHED_QCHAIN_SEL, 0xfffef);
5394 iwn_prph_write(sc, IWN5000_SCHED_AGGR_SEL, 0);
5396 for (qid = 0; qid < IWN5000_NTXQUEUES; qid++) {
5397 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_RDPTR(qid), 0);
5398 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | 0);
5400 iwn_mem_write(sc, sc->sched_base +
5401 IWN5000_SCHED_QUEUE_OFFSET(qid), 0);
5402 /* Set scheduler window size and frame limit. */
5403 iwn_mem_write(sc, sc->sched_base +
5404 IWN5000_SCHED_QUEUE_OFFSET(qid) + 4,
5405 IWN_SCHED_LIMIT << 16 | IWN_SCHED_WINSZ);
5408 /* Enable interrupts for all our 20 queues. */
5409 iwn_prph_write(sc, IWN5000_SCHED_INTR_MASK, 0xfffff);
5410 /* Identify TX FIFO rings (0-7). */
5411 iwn_prph_write(sc, IWN5000_SCHED_TXFACT, 0xff);
5413 /* Mark TX rings (4 EDCA + cmd + 2 HCCA) as active. */
5414 for (qid = 0; qid < 7; qid++) {
5415 static uint8_t qid2fifo[] = { 3, 2, 1, 0, 7, 5, 6 };
5416 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid),
5417 IWN5000_TXQ_STATUS_ACTIVE | qid2fifo[qid]);
5421 /* Configure WiMAX coexistence for combo adapters. */
5422 error = iwn5000_send_wimax_coex(sc);
5424 device_printf(sc->sc_dev,
5425 "%s: could not configure WiMAX coexistence, error %d\n",
5429 if (sc->hw_type != IWN_HW_REV_TYPE_5150) {
5430 struct iwn5000_phy_calib_crystal cmd;
5432 /* Perform crystal calibration. */
5433 memset(&cmd, 0, sizeof cmd);
5434 cmd.code = IWN5000_PHY_CALIB_CRYSTAL;
5437 cmd.cap_pin[0] = le32toh(sc->eeprom_crystal) & 0xff;
5438 cmd.cap_pin[1] = (le32toh(sc->eeprom_crystal) >> 16) & 0xff;
5439 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
5440 "sending crystal calibration %d, %d\n",
5441 cmd.cap_pin[0], cmd.cap_pin[1]);
5442 error = iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 0);
5444 device_printf(sc->sc_dev,
5445 "%s: crystal calibration failed, error %d\n",
5450 if (!(sc->sc_flags & IWN_FLAG_CALIB_DONE)) {
5451 /* Query calibration from the initialization firmware. */
5452 error = iwn5000_query_calibration(sc);
5454 device_printf(sc->sc_dev,
5455 "%s: could not query calibration, error %d\n",
5460 * We have the calibration results now, reboot with the
5461 * runtime firmware (call ourselves recursively!)
5464 error = iwn_hw_init(sc);
5466 /* Send calibration results to runtime firmware. */
5467 error = iwn5000_send_calibration(sc);
5473 * The firmware boot code is small and is intended to be copied directly into
5474 * the NIC internal memory (no DMA transfer.)
5477 iwn4965_load_bootcode(struct iwn_softc *sc, const uint8_t *ucode, int size)
5481 size /= sizeof (uint32_t);
5483 error = iwn_nic_lock(sc);
5487 /* Copy microcode image into NIC memory. */
5488 iwn_prph_write_region_4(sc, IWN_BSM_SRAM_BASE,
5489 (const uint32_t *)ucode, size);
5491 iwn_prph_write(sc, IWN_BSM_WR_MEM_SRC, 0);
5492 iwn_prph_write(sc, IWN_BSM_WR_MEM_DST, IWN_FW_TEXT_BASE);
5493 iwn_prph_write(sc, IWN_BSM_WR_DWCOUNT, size);
5495 /* Start boot load now. */
5496 iwn_prph_write(sc, IWN_BSM_WR_CTRL, IWN_BSM_WR_CTRL_START);
5498 /* Wait for transfer to complete. */
5499 for (ntries = 0; ntries < 1000; ntries++) {
5500 if (!(iwn_prph_read(sc, IWN_BSM_WR_CTRL) &
5501 IWN_BSM_WR_CTRL_START))
5505 if (ntries == 1000) {
5506 device_printf(sc->sc_dev, "%s: could not load boot firmware\n",
5512 /* Enable boot after power up. */
5513 iwn_prph_write(sc, IWN_BSM_WR_CTRL, IWN_BSM_WR_CTRL_START_EN);
5520 iwn4965_load_firmware(struct iwn_softc *sc)
5522 struct iwn_fw_info *fw = &sc->fw;
5523 struct iwn_dma_info *dma = &sc->fw_dma;
5526 /* Copy initialization sections into pre-allocated DMA-safe memory. */
5527 memcpy(dma->vaddr, fw->init.data, fw->init.datasz);
5528 bus_dmamap_sync(sc->fw_dma.tag, dma->map, BUS_DMASYNC_PREWRITE);
5529 memcpy(dma->vaddr + IWN4965_FW_DATA_MAXSZ,
5530 fw->init.text, fw->init.textsz);
5531 bus_dmamap_sync(sc->fw_dma.tag, dma->map, BUS_DMASYNC_PREWRITE);
5533 /* Tell adapter where to find initialization sections. */
5534 error = iwn_nic_lock(sc);
5537 iwn_prph_write(sc, IWN_BSM_DRAM_DATA_ADDR, dma->paddr >> 4);
5538 iwn_prph_write(sc, IWN_BSM_DRAM_DATA_SIZE, fw->init.datasz);
5539 iwn_prph_write(sc, IWN_BSM_DRAM_TEXT_ADDR,
5540 (dma->paddr + IWN4965_FW_DATA_MAXSZ) >> 4);
5541 iwn_prph_write(sc, IWN_BSM_DRAM_TEXT_SIZE, fw->init.textsz);
5544 /* Load firmware boot code. */
5545 error = iwn4965_load_bootcode(sc, fw->boot.text, fw->boot.textsz);
5547 device_printf(sc->sc_dev, "%s: could not load boot firmware\n",
5551 /* Now press "execute". */
5552 IWN_WRITE(sc, IWN_RESET, 0);
5554 /* Wait at most one second for first alive notification. */
5555 error = zsleep(sc, sc->sc_ifp->if_serializer, 0, "iwninit", hz);
5557 device_printf(sc->sc_dev,
5558 "%s: timeout waiting for adapter to initialize, error %d\n",
5563 /* Retrieve current temperature for initial TX power calibration. */
5564 sc->rawtemp = sc->ucode_info.temp[3].chan20MHz;
5565 sc->temp = iwn4965_get_temperature(sc);
5567 /* Copy runtime sections into pre-allocated DMA-safe memory. */
5568 memcpy(dma->vaddr, fw->main.data, fw->main.datasz);
5569 bus_dmamap_sync(sc->fw_dma.tag, dma->map, BUS_DMASYNC_PREWRITE);
5570 memcpy(dma->vaddr + IWN4965_FW_DATA_MAXSZ,
5571 fw->main.text, fw->main.textsz);
5572 bus_dmamap_sync(sc->fw_dma.tag, dma->map, BUS_DMASYNC_PREWRITE);
5574 /* Tell adapter where to find runtime sections. */
5575 error = iwn_nic_lock(sc);
5579 iwn_prph_write(sc, IWN_BSM_DRAM_DATA_ADDR, dma->paddr >> 4);
5580 iwn_prph_write(sc, IWN_BSM_DRAM_DATA_SIZE, fw->main.datasz);
5581 iwn_prph_write(sc, IWN_BSM_DRAM_TEXT_ADDR,
5582 (dma->paddr + IWN4965_FW_DATA_MAXSZ) >> 4);
5583 iwn_prph_write(sc, IWN_BSM_DRAM_TEXT_SIZE,
5584 IWN_FW_UPDATED | fw->main.textsz);
5591 iwn5000_load_firmware_section(struct iwn_softc *sc, uint32_t dst,
5592 const uint8_t *section, int size)
5594 struct iwn_dma_info *dma = &sc->fw_dma;
5597 /* Copy firmware section into pre-allocated DMA-safe memory. */
5598 memcpy(dma->vaddr, section, size);
5599 bus_dmamap_sync(sc->fw_dma.tag, dma->map, BUS_DMASYNC_PREWRITE);
5601 error = iwn_nic_lock(sc);
5605 IWN_WRITE(sc, IWN_FH_TX_CONFIG(IWN_SRVC_DMACHNL),
5606 IWN_FH_TX_CONFIG_DMA_PAUSE);
5608 IWN_WRITE(sc, IWN_FH_SRAM_ADDR(IWN_SRVC_DMACHNL), dst);
5609 IWN_WRITE(sc, IWN_FH_TFBD_CTRL0(IWN_SRVC_DMACHNL),
5610 IWN_LOADDR(dma->paddr));
5611 IWN_WRITE(sc, IWN_FH_TFBD_CTRL1(IWN_SRVC_DMACHNL),
5612 IWN_HIADDR(dma->paddr) << 28 | size);
5613 IWN_WRITE(sc, IWN_FH_TXBUF_STATUS(IWN_SRVC_DMACHNL),
5614 IWN_FH_TXBUF_STATUS_TBNUM(1) |
5615 IWN_FH_TXBUF_STATUS_TBIDX(1) |
5616 IWN_FH_TXBUF_STATUS_TFBD_VALID);
5618 /* Kick Flow Handler to start DMA transfer. */
5619 IWN_WRITE(sc, IWN_FH_TX_CONFIG(IWN_SRVC_DMACHNL),
5620 IWN_FH_TX_CONFIG_DMA_ENA | IWN_FH_TX_CONFIG_CIRQ_HOST_ENDTFD);
5624 /* Wait at most five seconds for FH DMA transfer to complete. */
5625 return zsleep(sc, sc->sc_ifp->if_serializer, 0, "iwninit", hz);
5629 iwn5000_load_firmware(struct iwn_softc *sc)
5631 struct iwn_fw_part *fw;
5634 /* Load the initialization firmware on first boot only. */
5635 fw = (sc->sc_flags & IWN_FLAG_CALIB_DONE) ?
5636 &sc->fw.main : &sc->fw.init;
5638 error = iwn5000_load_firmware_section(sc, IWN_FW_TEXT_BASE,
5639 fw->text, fw->textsz);
5641 device_printf(sc->sc_dev,
5642 "%s: could not load firmware %s section, error %d\n",
5643 __func__, ".text", error);
5646 error = iwn5000_load_firmware_section(sc, IWN_FW_DATA_BASE,
5647 fw->data, fw->datasz);
5649 device_printf(sc->sc_dev,
5650 "%s: could not load firmware %s section, error %d\n",
5651 __func__, ".data", error);
5655 /* Now press "execute". */
5656 IWN_WRITE(sc, IWN_RESET, 0);
5661 iwn_read_firmware(struct iwn_softc *sc)
5663 const struct iwn_hal *hal = sc->sc_hal;
5664 struct iwn_fw_info *fw = &sc->fw;
5665 const uint32_t *ptr;
5671 /* Read firmware image from filesystem. */
5672 sc->fw_fp = firmware_get(sc->fwname);
5673 if (sc->fw_fp == NULL) {
5674 device_printf(sc->sc_dev,
5675 "%s: could not load firmare image \"%s\"\n", __func__,
5682 size = sc->fw_fp->datasize;
5684 device_printf(sc->sc_dev,
5685 "%s: truncated firmware header: %zu bytes\n",
5690 /* Process firmware header. */
5691 ptr = (const uint32_t *)sc->fw_fp->data;
5692 rev = le32toh(*ptr++);
5693 /* Check firmware API version. */
5694 if (IWN_FW_API(rev) <= 1) {
5695 device_printf(sc->sc_dev,
5696 "%s: bad firmware, need API version >=2\n", __func__);
5699 if (IWN_FW_API(rev) >= 3) {
5700 /* Skip build number (version 2 header). */
5704 fw->main.textsz = le32toh(*ptr++);
5705 fw->main.datasz = le32toh(*ptr++);
5706 fw->init.textsz = le32toh(*ptr++);
5707 fw->init.datasz = le32toh(*ptr++);
5708 fw->boot.textsz = le32toh(*ptr++);
5711 /* Sanity-check firmware header. */
5712 if (fw->main.textsz > hal->fw_text_maxsz ||
5713 fw->main.datasz > hal->fw_data_maxsz ||
5714 fw->init.textsz > hal->fw_text_maxsz ||
5715 fw->init.datasz > hal->fw_data_maxsz ||
5716 fw->boot.textsz > IWN_FW_BOOT_TEXT_MAXSZ ||
5717 (fw->boot.textsz & 3) != 0) {
5718 device_printf(sc->sc_dev, "%s: invalid firmware header\n",
5723 /* Check that all firmware sections fit. */
5724 if (fw->main.textsz + fw->main.datasz + fw->init.textsz +
5725 fw->init.datasz + fw->boot.textsz > size) {
5726 device_printf(sc->sc_dev,
5727 "%s: firmware file too short: %zu bytes\n",
5732 /* Get pointers to firmware sections. */
5733 fw->main.text = (const uint8_t *)ptr;
5734 fw->main.data = fw->main.text + fw->main.textsz;
5735 fw->init.text = fw->main.data + fw->main.datasz;
5736 fw->init.data = fw->init.text + fw->init.textsz;
5737 fw->boot.text = fw->init.data + fw->init.datasz;
5743 iwn_clock_wait(struct iwn_softc *sc)
5747 /* Set "initialization complete" bit. */
5748 IWN_SETBITS(sc, IWN_GP_CNTRL, IWN_GP_CNTRL_INIT_DONE);
5750 /* Wait for clock stabilization. */
5751 for (ntries = 0; ntries < 2500; ntries++) {
5752 if (IWN_READ(sc, IWN_GP_CNTRL) & IWN_GP_CNTRL_MAC_CLOCK_READY)
5756 device_printf(sc->sc_dev,
5757 "%s: timeout waiting for clock stabilization\n", __func__);
5762 iwn_apm_init(struct iwn_softc *sc)
5767 /* Disable L0s exit timer (NMI bug workaround.) */
5768 IWN_SETBITS(sc, IWN_GIO_CHICKEN, IWN_GIO_CHICKEN_DIS_L0S_TIMER);
5769 /* Don't wait for ICH L0s (ICH bug workaround.) */
5770 IWN_SETBITS(sc, IWN_GIO_CHICKEN, IWN_GIO_CHICKEN_L1A_NO_L0S_RX);
5772 /* Set FH wait threshold to max (HW bug under stress workaround.) */
5773 IWN_SETBITS(sc, IWN_DBG_HPET_MEM, 0xffff0000);
5775 /* Enable HAP INTA to move adapter from L1a to L0s. */
5776 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_HAP_WAKE_L1A);
5778 /* Retrieve PCIe Active State Power Management (ASPM). */
5779 tmp = pci_read_config(sc->sc_dev, sc->sc_cap_off + 0x10, 1);
5780 /* Workaround for HW instability in PCIe L0->L0s->L1 transition. */
5781 if (tmp & 0x02) /* L1 Entry enabled. */
5782 IWN_SETBITS(sc, IWN_GIO, IWN_GIO_L0S_ENA);
5784 IWN_CLRBITS(sc, IWN_GIO, IWN_GIO_L0S_ENA);
5786 if (sc->hw_type != IWN_HW_REV_TYPE_4965 &&
5787 sc->hw_type != IWN_HW_REV_TYPE_6000 &&
5788 sc->hw_type != IWN_HW_REV_TYPE_6050)
5789 IWN_SETBITS(sc, IWN_ANA_PLL, IWN_ANA_PLL_INIT);
5791 /* Wait for clock stabilization before accessing prph. */
5792 error = iwn_clock_wait(sc);
5796 error = iwn_nic_lock(sc);
5800 if (sc->hw_type == IWN_HW_REV_TYPE_4965) {
5801 /* Enable DMA and BSM (Bootstrap State Machine.) */
5802 iwn_prph_write(sc, IWN_APMG_CLK_EN,
5803 IWN_APMG_CLK_CTRL_DMA_CLK_RQT |
5804 IWN_APMG_CLK_CTRL_BSM_CLK_RQT);
5807 iwn_prph_write(sc, IWN_APMG_CLK_EN,
5808 IWN_APMG_CLK_CTRL_DMA_CLK_RQT);
5812 /* Disable L1-Active. */
5813 iwn_prph_setbits(sc, IWN_APMG_PCI_STT, IWN_APMG_PCI_STT_L1A_DIS);
5820 iwn_apm_stop_master(struct iwn_softc *sc)
5824 /* Stop busmaster DMA activity. */
5825 IWN_SETBITS(sc, IWN_RESET, IWN_RESET_STOP_MASTER);
5826 for (ntries = 0; ntries < 100; ntries++) {
5827 if (IWN_READ(sc, IWN_RESET) & IWN_RESET_MASTER_DISABLED)
5831 device_printf(sc->sc_dev, "%s: timeout waiting for master\n",
5836 iwn_apm_stop(struct iwn_softc *sc)
5838 iwn_apm_stop_master(sc);
5840 /* Reset the entire device. */
5841 IWN_SETBITS(sc, IWN_RESET, IWN_RESET_SW);
5843 /* Clear "initialization complete" bit. */
5844 IWN_CLRBITS(sc, IWN_GP_CNTRL, IWN_GP_CNTRL_INIT_DONE);
5848 iwn4965_nic_config(struct iwn_softc *sc)
5850 if (IWN_RFCFG_TYPE(sc->rfcfg) == 1) {
5852 * I don't believe this to be correct but this is what the
5853 * vendor driver is doing. Probably the bits should not be
5854 * shifted in IWN_RFCFG_*.
5856 IWN_SETBITS(sc, IWN_HW_IF_CONFIG,
5857 IWN_RFCFG_TYPE(sc->rfcfg) |
5858 IWN_RFCFG_STEP(sc->rfcfg) |
5859 IWN_RFCFG_DASH(sc->rfcfg));
5861 IWN_SETBITS(sc, IWN_HW_IF_CONFIG,
5862 IWN_HW_IF_CONFIG_RADIO_SI | IWN_HW_IF_CONFIG_MAC_SI);
5867 iwn5000_nic_config(struct iwn_softc *sc)
5872 if (IWN_RFCFG_TYPE(sc->rfcfg) < 3) {
5873 IWN_SETBITS(sc, IWN_HW_IF_CONFIG,
5874 IWN_RFCFG_TYPE(sc->rfcfg) |
5875 IWN_RFCFG_STEP(sc->rfcfg) |
5876 IWN_RFCFG_DASH(sc->rfcfg));
5878 IWN_SETBITS(sc, IWN_HW_IF_CONFIG,
5879 IWN_HW_IF_CONFIG_RADIO_SI | IWN_HW_IF_CONFIG_MAC_SI);
5881 error = iwn_nic_lock(sc);
5884 iwn_prph_setbits(sc, IWN_APMG_PS, IWN_APMG_PS_EARLY_PWROFF_DIS);
5886 if (sc->hw_type == IWN_HW_REV_TYPE_1000) {
5888 * Select first Switching Voltage Regulator (1.32V) to
5889 * solve a stability issue related to noisy DC2DC line
5890 * in the silicon of 1000 Series.
5892 tmp = iwn_prph_read(sc, IWN_APMG_DIGITAL_SVR);
5893 tmp &= ~IWN_APMG_DIGITAL_SVR_VOLTAGE_MASK;
5894 tmp |= IWN_APMG_DIGITAL_SVR_VOLTAGE_1_32;
5895 iwn_prph_write(sc, IWN_APMG_DIGITAL_SVR, tmp);
5899 if (sc->sc_flags & IWN_FLAG_INTERNAL_PA) {
5900 /* Use internal power amplifier only. */
5901 IWN_WRITE(sc, IWN_GP_DRIVER, IWN_GP_DRIVER_RADIO_2X2_IPA);
5903 if (sc->hw_type == IWN_HW_REV_TYPE_6050 && sc->calib_ver >= 6) {
5904 /* Indicate that ROM calibration version is >=6. */
5905 IWN_SETBITS(sc, IWN_GP_DRIVER, IWN_GP_DRIVER_CALIB_VER6);
5911 * Take NIC ownership over Intel Active Management Technology (AMT).
5914 iwn_hw_prepare(struct iwn_softc *sc)
5918 /* Check if hardware is ready. */
5919 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_NIC_READY);
5920 for (ntries = 0; ntries < 5; ntries++) {
5921 if (IWN_READ(sc, IWN_HW_IF_CONFIG) &
5922 IWN_HW_IF_CONFIG_NIC_READY)
5927 /* Hardware not ready, force into ready state. */
5928 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_PREPARE);
5929 for (ntries = 0; ntries < 15000; ntries++) {
5930 if (!(IWN_READ(sc, IWN_HW_IF_CONFIG) &
5931 IWN_HW_IF_CONFIG_PREPARE_DONE))
5935 if (ntries == 15000)
5938 /* Hardware should be ready now. */
5939 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_NIC_READY);
5940 for (ntries = 0; ntries < 5; ntries++) {
5941 if (IWN_READ(sc, IWN_HW_IF_CONFIG) &
5942 IWN_HW_IF_CONFIG_NIC_READY)
5950 iwn_hw_init(struct iwn_softc *sc)
5952 const struct iwn_hal *hal = sc->sc_hal;
5953 int error, chnl, qid;
5955 /* Clear pending interrupts. */
5956 IWN_WRITE(sc, IWN_INT, 0xffffffff);
5958 error = iwn_apm_init(sc);
5960 device_printf(sc->sc_dev,
5961 "%s: could not power ON adapter, error %d\n",
5966 /* Select VMAIN power source. */
5967 error = iwn_nic_lock(sc);
5970 iwn_prph_clrbits(sc, IWN_APMG_PS, IWN_APMG_PS_PWR_SRC_MASK);
5973 /* Perform adapter-specific initialization. */
5974 error = hal->nic_config(sc);
5978 /* Initialize RX ring. */
5979 error = iwn_nic_lock(sc);
5982 IWN_WRITE(sc, IWN_FH_RX_CONFIG, 0);
5983 IWN_WRITE(sc, IWN_FH_RX_WPTR, 0);
5984 /* Set physical address of RX ring (256-byte aligned.) */
5985 IWN_WRITE(sc, IWN_FH_RX_BASE, sc->rxq.desc_dma.paddr >> 8);
5986 /* Set physical address of RX status (16-byte aligned.) */
5987 IWN_WRITE(sc, IWN_FH_STATUS_WPTR, sc->rxq.stat_dma.paddr >> 4);
5989 IWN_WRITE(sc, IWN_FH_RX_CONFIG,
5990 IWN_FH_RX_CONFIG_ENA |
5991 IWN_FH_RX_CONFIG_IGN_RXF_EMPTY | /* HW bug workaround */
5992 IWN_FH_RX_CONFIG_IRQ_DST_HOST |
5993 IWN_FH_RX_CONFIG_SINGLE_FRAME |
5994 IWN_FH_RX_CONFIG_RB_TIMEOUT(0) |
5995 IWN_FH_RX_CONFIG_NRBD(IWN_RX_RING_COUNT_LOG));
5997 IWN_WRITE(sc, IWN_FH_RX_WPTR, (IWN_RX_RING_COUNT - 1) & ~7);
5999 error = iwn_nic_lock(sc);
6003 /* Initialize TX scheduler. */
6004 iwn_prph_write(sc, hal->sched_txfact_addr, 0);
6006 /* Set physical address of "keep warm" page (16-byte aligned.) */
6007 IWN_WRITE(sc, IWN_FH_KW_ADDR, sc->kw_dma.paddr >> 4);
6009 /* Initialize TX rings. */
6010 for (qid = 0; qid < hal->ntxqs; qid++) {
6011 struct iwn_tx_ring *txq = &sc->txq[qid];
6013 /* Set physical address of TX ring (256-byte aligned.) */
6014 IWN_WRITE(sc, IWN_FH_CBBC_QUEUE(qid),
6015 txq->desc_dma.paddr >> 8);
6019 /* Enable DMA channels. */
6020 for (chnl = 0; chnl < hal->ndmachnls; chnl++) {
6021 IWN_WRITE(sc, IWN_FH_TX_CONFIG(chnl),
6022 IWN_FH_TX_CONFIG_DMA_ENA |
6023 IWN_FH_TX_CONFIG_DMA_CREDIT_ENA);
6026 /* Clear "radio off" and "commands blocked" bits. */
6027 IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_RFKILL);
6028 IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_CMD_BLOCKED);
6030 /* Clear pending interrupts. */
6031 IWN_WRITE(sc, IWN_INT, 0xffffffff);
6032 /* Enable interrupt coalescing. */
6033 IWN_WRITE(sc, IWN_INT_COALESCING, 512 / 8);
6034 /* Enable interrupts. */
6035 IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask);