FreeBSD/Linux Kernel Cross Reference
sys/dev/iwn/if_iwn.c
1 /*-
2 * Copyright (c) 2007-2009 Damien Bergamini <damien.bergamini@free.fr>
3 * Copyright (c) 2008 Benjamin Close <benjsc@FreeBSD.org>
4 * Copyright (c) 2008 Sam Leffler, Errno Consulting
5 * Copyright (c) 2011 Intel Corporation
6 * Copyright (c) 2013 Cedric GROSS <c.gross@kreiz-it.fr>
7 * Copyright (c) 2013 Adrian Chadd <adrian@FreeBSD.org>
8 *
9 * Permission to use, copy, modify, and distribute this software for any
10 * purpose with or without fee is hereby granted, provided that the above
11 * copyright notice and this permission notice appear in all copies.
12 *
13 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
14 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
15 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
16 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
17 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
18 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
19 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20 */
21
22 /*
23 * Driver for Intel WiFi Link 4965 and 1000/5000/6000 Series 802.11 network
24 * adapters.
25 */
26
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD: releng/11.2/sys/dev/iwn/if_iwn.c 314574 2017-03-03 00:47:42Z avos $");
29
30 #include "opt_wlan.h"
31 #include "opt_iwn.h"
32
33 #include <sys/param.h>
34 #include <sys/sockio.h>
35 #include <sys/sysctl.h>
36 #include <sys/mbuf.h>
37 #include <sys/kernel.h>
38 #include <sys/socket.h>
39 #include <sys/systm.h>
40 #include <sys/malloc.h>
41 #include <sys/bus.h>
42 #include <sys/conf.h>
43 #include <sys/rman.h>
44 #include <sys/endian.h>
45 #include <sys/firmware.h>
46 #include <sys/limits.h>
47 #include <sys/module.h>
48 #include <sys/priv.h>
49 #include <sys/queue.h>
50 #include <sys/taskqueue.h>
51
52 #include <machine/bus.h>
53 #include <machine/resource.h>
54 #include <machine/clock.h>
55
56 #include <dev/pci/pcireg.h>
57 #include <dev/pci/pcivar.h>
58
59 #include <net/if.h>
60 #include <net/if_var.h>
61 #include <net/if_dl.h>
62 #include <net/if_media.h>
63
64 #include <netinet/in.h>
65 #include <netinet/if_ether.h>
66
67 #include <net80211/ieee80211_var.h>
68 #include <net80211/ieee80211_radiotap.h>
69 #include <net80211/ieee80211_regdomain.h>
70 #include <net80211/ieee80211_ratectl.h>
71
72 #include <dev/iwn/if_iwnreg.h>
73 #include <dev/iwn/if_iwnvar.h>
74 #include <dev/iwn/if_iwn_devid.h>
75 #include <dev/iwn/if_iwn_chip_cfg.h>
76 #include <dev/iwn/if_iwn_debug.h>
77 #include <dev/iwn/if_iwn_ioctl.h>
78
79 struct iwn_ident {
80 uint16_t vendor;
81 uint16_t device;
82 const char *name;
83 };
84
85 static const struct iwn_ident iwn_ident_table[] = {
86 { 0x8086, IWN_DID_6x05_1, "Intel Centrino Advanced-N 6205" },
87 { 0x8086, IWN_DID_1000_1, "Intel Centrino Wireless-N 1000" },
88 { 0x8086, IWN_DID_1000_2, "Intel Centrino Wireless-N 1000" },
89 { 0x8086, IWN_DID_6x05_2, "Intel Centrino Advanced-N 6205" },
90 { 0x8086, IWN_DID_6050_1, "Intel Centrino Advanced-N + WiMAX 6250" },
91 { 0x8086, IWN_DID_6050_2, "Intel Centrino Advanced-N + WiMAX 6250" },
92 { 0x8086, IWN_DID_x030_1, "Intel Centrino Wireless-N 1030" },
93 { 0x8086, IWN_DID_x030_2, "Intel Centrino Wireless-N 1030" },
94 { 0x8086, IWN_DID_x030_3, "Intel Centrino Advanced-N 6230" },
95 { 0x8086, IWN_DID_x030_4, "Intel Centrino Advanced-N 6230" },
96 { 0x8086, IWN_DID_6150_1, "Intel Centrino Wireless-N + WiMAX 6150" },
97 { 0x8086, IWN_DID_6150_2, "Intel Centrino Wireless-N + WiMAX 6150" },
98 { 0x8086, IWN_DID_2x00_1, "Intel(R) Centrino(R) Wireless-N 2200 BGN" },
99 { 0x8086, IWN_DID_2x00_2, "Intel(R) Centrino(R) Wireless-N 2200 BGN" },
100 /* XXX 2200D is IWN_SDID_2x00_4; there's no way to express this here! */
101 { 0x8086, IWN_DID_2x30_1, "Intel Centrino Wireless-N 2230" },
102 { 0x8086, IWN_DID_2x30_2, "Intel Centrino Wireless-N 2230" },
103 { 0x8086, IWN_DID_130_1, "Intel Centrino Wireless-N 130" },
104 { 0x8086, IWN_DID_130_2, "Intel Centrino Wireless-N 130" },
105 { 0x8086, IWN_DID_100_1, "Intel Centrino Wireless-N 100" },
106 { 0x8086, IWN_DID_100_2, "Intel Centrino Wireless-N 100" },
107 { 0x8086, IWN_DID_105_1, "Intel Centrino Wireless-N 105" },
108 { 0x8086, IWN_DID_105_2, "Intel Centrino Wireless-N 105" },
109 { 0x8086, IWN_DID_135_1, "Intel Centrino Wireless-N 135" },
110 { 0x8086, IWN_DID_135_2, "Intel Centrino Wireless-N 135" },
111 { 0x8086, IWN_DID_4965_1, "Intel Wireless WiFi Link 4965" },
112 { 0x8086, IWN_DID_6x00_1, "Intel Centrino Ultimate-N 6300" },
113 { 0x8086, IWN_DID_6x00_2, "Intel Centrino Advanced-N 6200" },
114 { 0x8086, IWN_DID_4965_2, "Intel Wireless WiFi Link 4965" },
115 { 0x8086, IWN_DID_4965_3, "Intel Wireless WiFi Link 4965" },
116 { 0x8086, IWN_DID_5x00_1, "Intel WiFi Link 5100" },
117 { 0x8086, IWN_DID_4965_4, "Intel Wireless WiFi Link 4965" },
118 { 0x8086, IWN_DID_5x00_3, "Intel Ultimate N WiFi Link 5300" },
119 { 0x8086, IWN_DID_5x00_4, "Intel Ultimate N WiFi Link 5300" },
120 { 0x8086, IWN_DID_5x00_2, "Intel WiFi Link 5100" },
121 { 0x8086, IWN_DID_6x00_3, "Intel Centrino Ultimate-N 6300" },
122 { 0x8086, IWN_DID_6x00_4, "Intel Centrino Advanced-N 6200" },
123 { 0x8086, IWN_DID_5x50_1, "Intel WiMAX/WiFi Link 5350" },
124 { 0x8086, IWN_DID_5x50_2, "Intel WiMAX/WiFi Link 5350" },
125 { 0x8086, IWN_DID_5x50_3, "Intel WiMAX/WiFi Link 5150" },
126 { 0x8086, IWN_DID_5x50_4, "Intel WiMAX/WiFi Link 5150" },
127 { 0x8086, IWN_DID_6035_1, "Intel Centrino Advanced 6235" },
128 { 0x8086, IWN_DID_6035_2, "Intel Centrino Advanced 6235" },
129 { 0, 0, NULL }
130 };
131
132 static int iwn_probe(device_t);
133 static int iwn_attach(device_t);
134 static int iwn4965_attach(struct iwn_softc *, uint16_t);
135 static int iwn5000_attach(struct iwn_softc *, uint16_t);
136 static int iwn_config_specific(struct iwn_softc *, uint16_t);
137 static void iwn_radiotap_attach(struct iwn_softc *);
138 static void iwn_sysctlattach(struct iwn_softc *);
139 static struct ieee80211vap *iwn_vap_create(struct ieee80211com *,
140 const char [IFNAMSIZ], int, enum ieee80211_opmode, int,
141 const uint8_t [IEEE80211_ADDR_LEN],
142 const uint8_t [IEEE80211_ADDR_LEN]);
143 static void iwn_vap_delete(struct ieee80211vap *);
144 static int iwn_detach(device_t);
145 static int iwn_shutdown(device_t);
146 static int iwn_suspend(device_t);
147 static int iwn_resume(device_t);
148 static int iwn_nic_lock(struct iwn_softc *);
149 static int iwn_eeprom_lock(struct iwn_softc *);
150 static int iwn_init_otprom(struct iwn_softc *);
151 static int iwn_read_prom_data(struct iwn_softc *, uint32_t, void *, int);
152 static void iwn_dma_map_addr(void *, bus_dma_segment_t *, int, int);
153 static int iwn_dma_contig_alloc(struct iwn_softc *, struct iwn_dma_info *,
154 void **, bus_size_t, bus_size_t);
155 static void iwn_dma_contig_free(struct iwn_dma_info *);
156 static int iwn_alloc_sched(struct iwn_softc *);
157 static void iwn_free_sched(struct iwn_softc *);
158 static int iwn_alloc_kw(struct iwn_softc *);
159 static void iwn_free_kw(struct iwn_softc *);
160 static int iwn_alloc_ict(struct iwn_softc *);
161 static void iwn_free_ict(struct iwn_softc *);
162 static int iwn_alloc_fwmem(struct iwn_softc *);
163 static void iwn_free_fwmem(struct iwn_softc *);
164 static int iwn_alloc_rx_ring(struct iwn_softc *, struct iwn_rx_ring *);
165 static void iwn_reset_rx_ring(struct iwn_softc *, struct iwn_rx_ring *);
166 static void iwn_free_rx_ring(struct iwn_softc *, struct iwn_rx_ring *);
167 static int iwn_alloc_tx_ring(struct iwn_softc *, struct iwn_tx_ring *,
168 int);
169 static void iwn_reset_tx_ring(struct iwn_softc *, struct iwn_tx_ring *);
170 static void iwn_free_tx_ring(struct iwn_softc *, struct iwn_tx_ring *);
171 static void iwn5000_ict_reset(struct iwn_softc *);
172 static int iwn_read_eeprom(struct iwn_softc *,
173 uint8_t macaddr[IEEE80211_ADDR_LEN]);
174 static void iwn4965_read_eeprom(struct iwn_softc *);
175 #ifdef IWN_DEBUG
176 static void iwn4965_print_power_group(struct iwn_softc *, int);
177 #endif
178 static void iwn5000_read_eeprom(struct iwn_softc *);
179 static uint32_t iwn_eeprom_channel_flags(struct iwn_eeprom_chan *);
180 static void iwn_read_eeprom_band(struct iwn_softc *, int, int, int *,
181 struct ieee80211_channel[]);
182 static void iwn_read_eeprom_ht40(struct iwn_softc *, int, int, int *,
183 struct ieee80211_channel[]);
184 static void iwn_read_eeprom_channels(struct iwn_softc *, int, uint32_t);
185 static struct iwn_eeprom_chan *iwn_find_eeprom_channel(struct iwn_softc *,
186 struct ieee80211_channel *);
187 static void iwn_getradiocaps(struct ieee80211com *, int, int *,
188 struct ieee80211_channel[]);
189 static int iwn_setregdomain(struct ieee80211com *,
190 struct ieee80211_regdomain *, int,
191 struct ieee80211_channel[]);
192 static void iwn_read_eeprom_enhinfo(struct iwn_softc *);
193 static struct ieee80211_node *iwn_node_alloc(struct ieee80211vap *,
194 const uint8_t mac[IEEE80211_ADDR_LEN]);
195 static void iwn_newassoc(struct ieee80211_node *, int);
196 static int iwn_media_change(struct ifnet *);
197 static int iwn_newstate(struct ieee80211vap *, enum ieee80211_state, int);
198 static void iwn_calib_timeout(void *);
199 static void iwn_rx_phy(struct iwn_softc *, struct iwn_rx_desc *,
200 struct iwn_rx_data *);
201 static void iwn_rx_done(struct iwn_softc *, struct iwn_rx_desc *,
202 struct iwn_rx_data *);
203 static void iwn_rx_compressed_ba(struct iwn_softc *, struct iwn_rx_desc *,
204 struct iwn_rx_data *);
205 static void iwn5000_rx_calib_results(struct iwn_softc *,
206 struct iwn_rx_desc *, struct iwn_rx_data *);
207 static void iwn_rx_statistics(struct iwn_softc *, struct iwn_rx_desc *,
208 struct iwn_rx_data *);
209 static void iwn4965_tx_done(struct iwn_softc *, struct iwn_rx_desc *,
210 struct iwn_rx_data *);
211 static void iwn5000_tx_done(struct iwn_softc *, struct iwn_rx_desc *,
212 struct iwn_rx_data *);
213 static void iwn_tx_done(struct iwn_softc *, struct iwn_rx_desc *, int,
214 uint8_t);
215 static void iwn_ampdu_tx_done(struct iwn_softc *, int, int, int, int, void *);
216 static void iwn_cmd_done(struct iwn_softc *, struct iwn_rx_desc *);
217 static void iwn_notif_intr(struct iwn_softc *);
218 static void iwn_wakeup_intr(struct iwn_softc *);
219 static void iwn_rftoggle_intr(struct iwn_softc *);
220 static void iwn_fatal_intr(struct iwn_softc *);
221 static void iwn_intr(void *);
222 static void iwn4965_update_sched(struct iwn_softc *, int, int, uint8_t,
223 uint16_t);
224 static void iwn5000_update_sched(struct iwn_softc *, int, int, uint8_t,
225 uint16_t);
226 #ifdef notyet
227 static void iwn5000_reset_sched(struct iwn_softc *, int, int);
228 #endif
229 static int iwn_tx_data(struct iwn_softc *, struct mbuf *,
230 struct ieee80211_node *);
231 static int iwn_tx_data_raw(struct iwn_softc *, struct mbuf *,
232 struct ieee80211_node *,
233 const struct ieee80211_bpf_params *params);
234 static void iwn_xmit_task(void *arg0, int pending);
235 static int iwn_raw_xmit(struct ieee80211_node *, struct mbuf *,
236 const struct ieee80211_bpf_params *);
237 static int iwn_transmit(struct ieee80211com *, struct mbuf *);
238 static void iwn_scan_timeout(void *);
239 static void iwn_watchdog(void *);
240 static int iwn_ioctl(struct ieee80211com *, u_long , void *);
241 static void iwn_parent(struct ieee80211com *);
242 static int iwn_cmd(struct iwn_softc *, int, const void *, int, int);
243 static int iwn4965_add_node(struct iwn_softc *, struct iwn_node_info *,
244 int);
245 static int iwn5000_add_node(struct iwn_softc *, struct iwn_node_info *,
246 int);
247 static int iwn_set_link_quality(struct iwn_softc *,
248 struct ieee80211_node *);
249 static int iwn_add_broadcast_node(struct iwn_softc *, int);
250 static int iwn_updateedca(struct ieee80211com *);
251 static void iwn_update_mcast(struct ieee80211com *);
252 static void iwn_set_led(struct iwn_softc *, uint8_t, uint8_t, uint8_t);
253 static int iwn_set_critical_temp(struct iwn_softc *);
254 static int iwn_set_timing(struct iwn_softc *, struct ieee80211_node *);
255 static void iwn4965_power_calibration(struct iwn_softc *, int);
256 static int iwn4965_set_txpower(struct iwn_softc *,
257 struct ieee80211_channel *, int);
258 static int iwn5000_set_txpower(struct iwn_softc *,
259 struct ieee80211_channel *, int);
260 static int iwn4965_get_rssi(struct iwn_softc *, struct iwn_rx_stat *);
261 static int iwn5000_get_rssi(struct iwn_softc *, struct iwn_rx_stat *);
262 static int iwn_get_noise(const struct iwn_rx_general_stats *);
263 static int iwn4965_get_temperature(struct iwn_softc *);
264 static int iwn5000_get_temperature(struct iwn_softc *);
265 static int iwn_init_sensitivity(struct iwn_softc *);
266 static void iwn_collect_noise(struct iwn_softc *,
267 const struct iwn_rx_general_stats *);
268 static int iwn4965_init_gains(struct iwn_softc *);
269 static int iwn5000_init_gains(struct iwn_softc *);
270 static int iwn4965_set_gains(struct iwn_softc *);
271 static int iwn5000_set_gains(struct iwn_softc *);
272 static void iwn_tune_sensitivity(struct iwn_softc *,
273 const struct iwn_rx_stats *);
274 static void iwn_save_stats_counters(struct iwn_softc *,
275 const struct iwn_stats *);
276 static int iwn_send_sensitivity(struct iwn_softc *);
277 static void iwn_check_rx_recovery(struct iwn_softc *, struct iwn_stats *);
278 static int iwn_set_pslevel(struct iwn_softc *, int, int, int);
279 static int iwn_send_btcoex(struct iwn_softc *);
280 static int iwn_send_advanced_btcoex(struct iwn_softc *);
281 static int iwn5000_runtime_calib(struct iwn_softc *);
282 static int iwn_config(struct iwn_softc *);
283 static int iwn_scan(struct iwn_softc *, struct ieee80211vap *,
284 struct ieee80211_scan_state *, struct ieee80211_channel *);
285 static int iwn_auth(struct iwn_softc *, struct ieee80211vap *vap);
286 static int iwn_run(struct iwn_softc *, struct ieee80211vap *vap);
287 static int iwn_ampdu_rx_start(struct ieee80211_node *,
288 struct ieee80211_rx_ampdu *, int, int, int);
289 static void iwn_ampdu_rx_stop(struct ieee80211_node *,
290 struct ieee80211_rx_ampdu *);
291 static int iwn_addba_request(struct ieee80211_node *,
292 struct ieee80211_tx_ampdu *, int, int, int);
293 static int iwn_addba_response(struct ieee80211_node *,
294 struct ieee80211_tx_ampdu *, int, int, int);
295 static int iwn_ampdu_tx_start(struct ieee80211com *,
296 struct ieee80211_node *, uint8_t);
297 static void iwn_ampdu_tx_stop(struct ieee80211_node *,
298 struct ieee80211_tx_ampdu *);
299 static void iwn4965_ampdu_tx_start(struct iwn_softc *,
300 struct ieee80211_node *, int, uint8_t, uint16_t);
301 static void iwn4965_ampdu_tx_stop(struct iwn_softc *, int,
302 uint8_t, uint16_t);
303 static void iwn5000_ampdu_tx_start(struct iwn_softc *,
304 struct ieee80211_node *, int, uint8_t, uint16_t);
305 static void iwn5000_ampdu_tx_stop(struct iwn_softc *, int,
306 uint8_t, uint16_t);
307 static int iwn5000_query_calibration(struct iwn_softc *);
308 static int iwn5000_send_calibration(struct iwn_softc *);
309 static int iwn5000_send_wimax_coex(struct iwn_softc *);
310 static int iwn5000_crystal_calib(struct iwn_softc *);
311 static int iwn5000_temp_offset_calib(struct iwn_softc *);
312 static int iwn5000_temp_offset_calibv2(struct iwn_softc *);
313 static int iwn4965_post_alive(struct iwn_softc *);
314 static int iwn5000_post_alive(struct iwn_softc *);
315 static int iwn4965_load_bootcode(struct iwn_softc *, const uint8_t *,
316 int);
317 static int iwn4965_load_firmware(struct iwn_softc *);
318 static int iwn5000_load_firmware_section(struct iwn_softc *, uint32_t,
319 const uint8_t *, int);
320 static int iwn5000_load_firmware(struct iwn_softc *);
321 static int iwn_read_firmware_leg(struct iwn_softc *,
322 struct iwn_fw_info *);
323 static int iwn_read_firmware_tlv(struct iwn_softc *,
324 struct iwn_fw_info *, uint16_t);
325 static int iwn_read_firmware(struct iwn_softc *);
326 static void iwn_unload_firmware(struct iwn_softc *);
327 static int iwn_clock_wait(struct iwn_softc *);
328 static int iwn_apm_init(struct iwn_softc *);
329 static void iwn_apm_stop_master(struct iwn_softc *);
330 static void iwn_apm_stop(struct iwn_softc *);
331 static int iwn4965_nic_config(struct iwn_softc *);
332 static int iwn5000_nic_config(struct iwn_softc *);
333 static int iwn_hw_prepare(struct iwn_softc *);
334 static int iwn_hw_init(struct iwn_softc *);
335 static void iwn_hw_stop(struct iwn_softc *);
336 static void iwn_radio_on(void *, int);
337 static void iwn_radio_off(void *, int);
338 static void iwn_panicked(void *, int);
339 static void iwn_init_locked(struct iwn_softc *);
340 static void iwn_init(struct iwn_softc *);
341 static void iwn_stop_locked(struct iwn_softc *);
342 static void iwn_stop(struct iwn_softc *);
343 static void iwn_scan_start(struct ieee80211com *);
344 static void iwn_scan_end(struct ieee80211com *);
345 static void iwn_set_channel(struct ieee80211com *);
346 static void iwn_scan_curchan(struct ieee80211_scan_state *, unsigned long);
347 static void iwn_scan_mindwell(struct ieee80211_scan_state *);
348 #ifdef IWN_DEBUG
349 static char *iwn_get_csr_string(int);
350 static void iwn_debug_register(struct iwn_softc *);
351 #endif
352
353 static device_method_t iwn_methods[] = {
354 /* Device interface */
355 DEVMETHOD(device_probe, iwn_probe),
356 DEVMETHOD(device_attach, iwn_attach),
357 DEVMETHOD(device_detach, iwn_detach),
358 DEVMETHOD(device_shutdown, iwn_shutdown),
359 DEVMETHOD(device_suspend, iwn_suspend),
360 DEVMETHOD(device_resume, iwn_resume),
361
362 DEVMETHOD_END
363 };
364
365 static driver_t iwn_driver = {
366 "iwn",
367 iwn_methods,
368 sizeof(struct iwn_softc)
369 };
370 static devclass_t iwn_devclass;
371
372 DRIVER_MODULE(iwn, pci, iwn_driver, iwn_devclass, NULL, NULL);
373
374 MODULE_VERSION(iwn, 1);
375
376 MODULE_DEPEND(iwn, firmware, 1, 1, 1);
377 MODULE_DEPEND(iwn, pci, 1, 1, 1);
378 MODULE_DEPEND(iwn, wlan, 1, 1, 1);
379
380 static d_ioctl_t iwn_cdev_ioctl;
381 static d_open_t iwn_cdev_open;
382 static d_close_t iwn_cdev_close;
383
384 static struct cdevsw iwn_cdevsw = {
385 .d_version = D_VERSION,
386 .d_flags = 0,
387 .d_open = iwn_cdev_open,
388 .d_close = iwn_cdev_close,
389 .d_ioctl = iwn_cdev_ioctl,
390 .d_name = "iwn",
391 };
392
393 static int
394 iwn_probe(device_t dev)
395 {
396 const struct iwn_ident *ident;
397
398 for (ident = iwn_ident_table; ident->name != NULL; ident++) {
399 if (pci_get_vendor(dev) == ident->vendor &&
400 pci_get_device(dev) == ident->device) {
401 device_set_desc(dev, ident->name);
402 return (BUS_PROBE_DEFAULT);
403 }
404 }
405 return ENXIO;
406 }
407
408 static int
409 iwn_is_3stream_device(struct iwn_softc *sc)
410 {
411 /* XXX for now only 5300, until the 5350 can be tested */
412 if (sc->hw_type == IWN_HW_REV_TYPE_5300)
413 return (1);
414 return (0);
415 }
416
417 static int
418 iwn_attach(device_t dev)
419 {
420 struct iwn_softc *sc = device_get_softc(dev);
421 struct ieee80211com *ic;
422 int i, error, rid;
423
424 sc->sc_dev = dev;
425
426 #ifdef IWN_DEBUG
427 error = resource_int_value(device_get_name(sc->sc_dev),
428 device_get_unit(sc->sc_dev), "debug", &(sc->sc_debug));
429 if (error != 0)
430 sc->sc_debug = 0;
431 #else
432 sc->sc_debug = 0;
433 #endif
434
435 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: begin\n",__func__);
436
437 /*
438 * Get the offset of the PCI Express Capability Structure in PCI
439 * Configuration Space.
440 */
441 error = pci_find_cap(dev, PCIY_EXPRESS, &sc->sc_cap_off);
442 if (error != 0) {
443 device_printf(dev, "PCIe capability structure not found!\n");
444 return error;
445 }
446
447 /* Clear device-specific "PCI retry timeout" register (41h). */
448 pci_write_config(dev, 0x41, 0, 1);
449
450 /* Enable bus-mastering. */
451 pci_enable_busmaster(dev);
452
453 rid = PCIR_BAR(0);
454 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
455 RF_ACTIVE);
456 if (sc->mem == NULL) {
457 device_printf(dev, "can't map mem space\n");
458 error = ENOMEM;
459 return error;
460 }
461 sc->sc_st = rman_get_bustag(sc->mem);
462 sc->sc_sh = rman_get_bushandle(sc->mem);
463
464 i = 1;
465 rid = 0;
466 if (pci_alloc_msi(dev, &i) == 0)
467 rid = 1;
468 /* Install interrupt handler. */
469 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE |
470 (rid != 0 ? 0 : RF_SHAREABLE));
471 if (sc->irq == NULL) {
472 device_printf(dev, "can't map interrupt\n");
473 error = ENOMEM;
474 goto fail;
475 }
476
477 IWN_LOCK_INIT(sc);
478
479 /* Read hardware revision and attach. */
480 sc->hw_type = (IWN_READ(sc, IWN_HW_REV) >> IWN_HW_REV_TYPE_SHIFT)
481 & IWN_HW_REV_TYPE_MASK;
482 sc->subdevice_id = pci_get_subdevice(dev);
483
484 /*
485 * 4965 versus 5000 and later have different methods.
486 * Let's set those up first.
487 */
488 if (sc->hw_type == IWN_HW_REV_TYPE_4965)
489 error = iwn4965_attach(sc, pci_get_device(dev));
490 else
491 error = iwn5000_attach(sc, pci_get_device(dev));
492 if (error != 0) {
493 device_printf(dev, "could not attach device, error %d\n",
494 error);
495 goto fail;
496 }
497
498 /*
499 * Next, let's setup the various parameters of each NIC.
500 */
501 error = iwn_config_specific(sc, pci_get_device(dev));
502 if (error != 0) {
503 device_printf(dev, "could not attach device, error %d\n",
504 error);
505 goto fail;
506 }
507
508 if ((error = iwn_hw_prepare(sc)) != 0) {
509 device_printf(dev, "hardware not ready, error %d\n", error);
510 goto fail;
511 }
512
513 /* Allocate DMA memory for firmware transfers. */
514 if ((error = iwn_alloc_fwmem(sc)) != 0) {
515 device_printf(dev,
516 "could not allocate memory for firmware, error %d\n",
517 error);
518 goto fail;
519 }
520
521 /* Allocate "Keep Warm" page. */
522 if ((error = iwn_alloc_kw(sc)) != 0) {
523 device_printf(dev,
524 "could not allocate keep warm page, error %d\n", error);
525 goto fail;
526 }
527
528 /* Allocate ICT table for 5000 Series. */
529 if (sc->hw_type != IWN_HW_REV_TYPE_4965 &&
530 (error = iwn_alloc_ict(sc)) != 0) {
531 device_printf(dev, "could not allocate ICT table, error %d\n",
532 error);
533 goto fail;
534 }
535
536 /* Allocate TX scheduler "rings". */
537 if ((error = iwn_alloc_sched(sc)) != 0) {
538 device_printf(dev,
539 "could not allocate TX scheduler rings, error %d\n", error);
540 goto fail;
541 }
542
543 /* Allocate TX rings (16 on 4965AGN, 20 on >=5000). */
544 for (i = 0; i < sc->ntxqs; i++) {
545 if ((error = iwn_alloc_tx_ring(sc, &sc->txq[i], i)) != 0) {
546 device_printf(dev,
547 "could not allocate TX ring %d, error %d\n", i,
548 error);
549 goto fail;
550 }
551 }
552
553 /* Allocate RX ring. */
554 if ((error = iwn_alloc_rx_ring(sc, &sc->rxq)) != 0) {
555 device_printf(dev, "could not allocate RX ring, error %d\n",
556 error);
557 goto fail;
558 }
559
560 /* Clear pending interrupts. */
561 IWN_WRITE(sc, IWN_INT, 0xffffffff);
562
563 ic = &sc->sc_ic;
564 ic->ic_softc = sc;
565 ic->ic_name = device_get_nameunit(dev);
566 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
567 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
568
569 /* Set device capabilities. */
570 ic->ic_caps =
571 IEEE80211_C_STA /* station mode supported */
572 | IEEE80211_C_MONITOR /* monitor mode supported */
573 #if 0
574 | IEEE80211_C_BGSCAN /* background scanning */
575 #endif
576 | IEEE80211_C_TXPMGT /* tx power management */
577 | IEEE80211_C_SHSLOT /* short slot time supported */
578 | IEEE80211_C_WPA
579 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
580 #if 0
581 | IEEE80211_C_IBSS /* ibss/adhoc mode */
582 #endif
583 | IEEE80211_C_WME /* WME */
584 | IEEE80211_C_PMGT /* Station-side power mgmt */
585 ;
586
587 /* Read MAC address, channels, etc from EEPROM. */
588 if ((error = iwn_read_eeprom(sc, ic->ic_macaddr)) != 0) {
589 device_printf(dev, "could not read EEPROM, error %d\n",
590 error);
591 goto fail;
592 }
593
594 /* Count the number of available chains. */
595 sc->ntxchains =
596 ((sc->txchainmask >> 2) & 1) +
597 ((sc->txchainmask >> 1) & 1) +
598 ((sc->txchainmask >> 0) & 1);
599 sc->nrxchains =
600 ((sc->rxchainmask >> 2) & 1) +
601 ((sc->rxchainmask >> 1) & 1) +
602 ((sc->rxchainmask >> 0) & 1);
603 if (bootverbose) {
604 device_printf(dev, "MIMO %dT%dR, %.4s, address %6D\n",
605 sc->ntxchains, sc->nrxchains, sc->eeprom_domain,
606 ic->ic_macaddr, ":");
607 }
608
609 if (sc->sc_flags & IWN_FLAG_HAS_11N) {
610 ic->ic_rxstream = sc->nrxchains;
611 ic->ic_txstream = sc->ntxchains;
612
613 /*
614 * Some of the 3 antenna devices (ie, the 4965) only supports
615 * 2x2 operation. So correct the number of streams if
616 * it's not a 3-stream device.
617 */
618 if (! iwn_is_3stream_device(sc)) {
619 if (ic->ic_rxstream > 2)
620 ic->ic_rxstream = 2;
621 if (ic->ic_txstream > 2)
622 ic->ic_txstream = 2;
623 }
624
625 ic->ic_htcaps =
626 IEEE80211_HTCAP_SMPS_OFF /* SMPS mode disabled */
627 | IEEE80211_HTCAP_SHORTGI20 /* short GI in 20MHz */
628 | IEEE80211_HTCAP_CHWIDTH40 /* 40MHz channel width*/
629 | IEEE80211_HTCAP_SHORTGI40 /* short GI in 40MHz */
630 #ifdef notyet
631 | IEEE80211_HTCAP_GREENFIELD
632 #if IWN_RBUF_SIZE == 8192
633 | IEEE80211_HTCAP_MAXAMSDU_7935 /* max A-MSDU length */
634 #else
635 | IEEE80211_HTCAP_MAXAMSDU_3839 /* max A-MSDU length */
636 #endif
637 #endif
638 /* s/w capabilities */
639 | IEEE80211_HTC_HT /* HT operation */
640 | IEEE80211_HTC_AMPDU /* tx A-MPDU */
641 #ifdef notyet
642 | IEEE80211_HTC_AMSDU /* tx A-MSDU */
643 #endif
644 ;
645 }
646
647 ieee80211_ifattach(ic);
648 ic->ic_vap_create = iwn_vap_create;
649 ic->ic_ioctl = iwn_ioctl;
650 ic->ic_parent = iwn_parent;
651 ic->ic_vap_delete = iwn_vap_delete;
652 ic->ic_transmit = iwn_transmit;
653 ic->ic_raw_xmit = iwn_raw_xmit;
654 ic->ic_node_alloc = iwn_node_alloc;
655 sc->sc_ampdu_rx_start = ic->ic_ampdu_rx_start;
656 ic->ic_ampdu_rx_start = iwn_ampdu_rx_start;
657 sc->sc_ampdu_rx_stop = ic->ic_ampdu_rx_stop;
658 ic->ic_ampdu_rx_stop = iwn_ampdu_rx_stop;
659 sc->sc_addba_request = ic->ic_addba_request;
660 ic->ic_addba_request = iwn_addba_request;
661 sc->sc_addba_response = ic->ic_addba_response;
662 ic->ic_addba_response = iwn_addba_response;
663 sc->sc_addba_stop = ic->ic_addba_stop;
664 ic->ic_addba_stop = iwn_ampdu_tx_stop;
665 ic->ic_newassoc = iwn_newassoc;
666 ic->ic_wme.wme_update = iwn_updateedca;
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_getradiocaps = iwn_getradiocaps;
674 ic->ic_setregdomain = iwn_setregdomain;
675
676 iwn_radiotap_attach(sc);
677
678 callout_init_mtx(&sc->calib_to, &sc->sc_mtx, 0);
679 callout_init_mtx(&sc->scan_timeout, &sc->sc_mtx, 0);
680 callout_init_mtx(&sc->watchdog_to, &sc->sc_mtx, 0);
681 TASK_INIT(&sc->sc_radioon_task, 0, iwn_radio_on, sc);
682 TASK_INIT(&sc->sc_radiooff_task, 0, iwn_radio_off, sc);
683 TASK_INIT(&sc->sc_panic_task, 0, iwn_panicked, sc);
684 TASK_INIT(&sc->sc_xmit_task, 0, iwn_xmit_task, sc);
685
686 mbufq_init(&sc->sc_xmit_queue, 1024);
687
688 sc->sc_tq = taskqueue_create("iwn_taskq", M_WAITOK,
689 taskqueue_thread_enqueue, &sc->sc_tq);
690 error = taskqueue_start_threads(&sc->sc_tq, 1, 0, "iwn_taskq");
691 if (error != 0) {
692 device_printf(dev, "can't start threads, error %d\n", error);
693 goto fail;
694 }
695
696 iwn_sysctlattach(sc);
697
698 /*
699 * Hook our interrupt after all initialization is complete.
700 */
701 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
702 NULL, iwn_intr, sc, &sc->sc_ih);
703 if (error != 0) {
704 device_printf(dev, "can't establish interrupt, error %d\n",
705 error);
706 goto fail;
707 }
708
709 #if 0
710 device_printf(sc->sc_dev, "%s: rx_stats=%d, rx_stats_bt=%d\n",
711 __func__,
712 sizeof(struct iwn_stats),
713 sizeof(struct iwn_stats_bt));
714 #endif
715
716 if (bootverbose)
717 ieee80211_announce(ic);
718 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
719
720 /* Add debug ioctl right at the end */
721 sc->sc_cdev = make_dev(&iwn_cdevsw, device_get_unit(dev),
722 UID_ROOT, GID_WHEEL, 0600, "%s", device_get_nameunit(dev));
723 if (sc->sc_cdev == NULL) {
724 device_printf(dev, "failed to create debug character device\n");
725 } else {
726 sc->sc_cdev->si_drv1 = sc;
727 }
728 return 0;
729 fail:
730 iwn_detach(dev);
731 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end in error\n",__func__);
732 return error;
733 }
734
735 /*
736 * Define specific configuration based on device id and subdevice id
737 * pid : PCI device id
738 */
739 static int
740 iwn_config_specific(struct iwn_softc *sc, uint16_t pid)
741 {
742
743 switch (pid) {
744 /* 4965 series */
745 case IWN_DID_4965_1:
746 case IWN_DID_4965_2:
747 case IWN_DID_4965_3:
748 case IWN_DID_4965_4:
749 sc->base_params = &iwn4965_base_params;
750 sc->limits = &iwn4965_sensitivity_limits;
751 sc->fwname = "iwn4965fw";
752 /* Override chains masks, ROM is known to be broken. */
753 sc->txchainmask = IWN_ANT_AB;
754 sc->rxchainmask = IWN_ANT_ABC;
755 /* Enable normal btcoex */
756 sc->sc_flags |= IWN_FLAG_BTCOEX;
757 break;
758 /* 1000 Series */
759 case IWN_DID_1000_1:
760 case IWN_DID_1000_2:
761 switch(sc->subdevice_id) {
762 case IWN_SDID_1000_1:
763 case IWN_SDID_1000_2:
764 case IWN_SDID_1000_3:
765 case IWN_SDID_1000_4:
766 case IWN_SDID_1000_5:
767 case IWN_SDID_1000_6:
768 case IWN_SDID_1000_7:
769 case IWN_SDID_1000_8:
770 case IWN_SDID_1000_9:
771 case IWN_SDID_1000_10:
772 case IWN_SDID_1000_11:
773 case IWN_SDID_1000_12:
774 sc->limits = &iwn1000_sensitivity_limits;
775 sc->base_params = &iwn1000_base_params;
776 sc->fwname = "iwn1000fw";
777 break;
778 default:
779 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
780 "0x%04x rev %d not supported (subdevice)\n", pid,
781 sc->subdevice_id,sc->hw_type);
782 return ENOTSUP;
783 }
784 break;
785 /* 6x00 Series */
786 case IWN_DID_6x00_2:
787 case IWN_DID_6x00_4:
788 case IWN_DID_6x00_1:
789 case IWN_DID_6x00_3:
790 sc->fwname = "iwn6000fw";
791 sc->limits = &iwn6000_sensitivity_limits;
792 switch(sc->subdevice_id) {
793 case IWN_SDID_6x00_1:
794 case IWN_SDID_6x00_2:
795 case IWN_SDID_6x00_8:
796 //iwl6000_3agn_cfg
797 sc->base_params = &iwn_6000_base_params;
798 break;
799 case IWN_SDID_6x00_3:
800 case IWN_SDID_6x00_6:
801 case IWN_SDID_6x00_9:
802 ////iwl6000i_2agn
803 case IWN_SDID_6x00_4:
804 case IWN_SDID_6x00_7:
805 case IWN_SDID_6x00_10:
806 //iwl6000i_2abg_cfg
807 case IWN_SDID_6x00_5:
808 //iwl6000i_2bg_cfg
809 sc->base_params = &iwn_6000i_base_params;
810 sc->sc_flags |= IWN_FLAG_INTERNAL_PA;
811 sc->txchainmask = IWN_ANT_BC;
812 sc->rxchainmask = IWN_ANT_BC;
813 break;
814 default:
815 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
816 "0x%04x rev %d not supported (subdevice)\n", pid,
817 sc->subdevice_id,sc->hw_type);
818 return ENOTSUP;
819 }
820 break;
821 /* 6x05 Series */
822 case IWN_DID_6x05_1:
823 case IWN_DID_6x05_2:
824 switch(sc->subdevice_id) {
825 case IWN_SDID_6x05_1:
826 case IWN_SDID_6x05_4:
827 case IWN_SDID_6x05_6:
828 //iwl6005_2agn_cfg
829 case IWN_SDID_6x05_2:
830 case IWN_SDID_6x05_5:
831 case IWN_SDID_6x05_7:
832 //iwl6005_2abg_cfg
833 case IWN_SDID_6x05_3:
834 //iwl6005_2bg_cfg
835 case IWN_SDID_6x05_8:
836 case IWN_SDID_6x05_9:
837 //iwl6005_2agn_sff_cfg
838 case IWN_SDID_6x05_10:
839 //iwl6005_2agn_d_cfg
840 case IWN_SDID_6x05_11:
841 //iwl6005_2agn_mow1_cfg
842 case IWN_SDID_6x05_12:
843 //iwl6005_2agn_mow2_cfg
844 sc->fwname = "iwn6000g2afw";
845 sc->limits = &iwn6000_sensitivity_limits;
846 sc->base_params = &iwn_6000g2_base_params;
847 break;
848 default:
849 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
850 "0x%04x rev %d not supported (subdevice)\n", pid,
851 sc->subdevice_id,sc->hw_type);
852 return ENOTSUP;
853 }
854 break;
855 /* 6x35 Series */
856 case IWN_DID_6035_1:
857 case IWN_DID_6035_2:
858 switch(sc->subdevice_id) {
859 case IWN_SDID_6035_1:
860 case IWN_SDID_6035_2:
861 case IWN_SDID_6035_3:
862 case IWN_SDID_6035_4:
863 sc->fwname = "iwn6000g2bfw";
864 sc->limits = &iwn6235_sensitivity_limits;
865 sc->base_params = &iwn_6235_base_params;
866 break;
867 default:
868 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
869 "0x%04x rev %d not supported (subdevice)\n", pid,
870 sc->subdevice_id,sc->hw_type);
871 return ENOTSUP;
872 }
873 break;
874 /* 6x50 WiFi/WiMax Series */
875 case IWN_DID_6050_1:
876 case IWN_DID_6050_2:
877 switch(sc->subdevice_id) {
878 case IWN_SDID_6050_1:
879 case IWN_SDID_6050_3:
880 case IWN_SDID_6050_5:
881 //iwl6050_2agn_cfg
882 case IWN_SDID_6050_2:
883 case IWN_SDID_6050_4:
884 case IWN_SDID_6050_6:
885 //iwl6050_2abg_cfg
886 sc->fwname = "iwn6050fw";
887 sc->txchainmask = IWN_ANT_AB;
888 sc->rxchainmask = IWN_ANT_AB;
889 sc->limits = &iwn6000_sensitivity_limits;
890 sc->base_params = &iwn_6050_base_params;
891 break;
892 default:
893 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
894 "0x%04x rev %d not supported (subdevice)\n", pid,
895 sc->subdevice_id,sc->hw_type);
896 return ENOTSUP;
897 }
898 break;
899 /* 6150 WiFi/WiMax Series */
900 case IWN_DID_6150_1:
901 case IWN_DID_6150_2:
902 switch(sc->subdevice_id) {
903 case IWN_SDID_6150_1:
904 case IWN_SDID_6150_3:
905 case IWN_SDID_6150_5:
906 // iwl6150_bgn_cfg
907 case IWN_SDID_6150_2:
908 case IWN_SDID_6150_4:
909 case IWN_SDID_6150_6:
910 //iwl6150_bg_cfg
911 sc->fwname = "iwn6050fw";
912 sc->limits = &iwn6000_sensitivity_limits;
913 sc->base_params = &iwn_6150_base_params;
914 break;
915 default:
916 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
917 "0x%04x rev %d not supported (subdevice)\n", pid,
918 sc->subdevice_id,sc->hw_type);
919 return ENOTSUP;
920 }
921 break;
922 /* 6030 Series and 1030 Series */
923 case IWN_DID_x030_1:
924 case IWN_DID_x030_2:
925 case IWN_DID_x030_3:
926 case IWN_DID_x030_4:
927 switch(sc->subdevice_id) {
928 case IWN_SDID_x030_1:
929 case IWN_SDID_x030_3:
930 case IWN_SDID_x030_5:
931 // iwl1030_bgn_cfg
932 case IWN_SDID_x030_2:
933 case IWN_SDID_x030_4:
934 case IWN_SDID_x030_6:
935 //iwl1030_bg_cfg
936 case IWN_SDID_x030_7:
937 case IWN_SDID_x030_10:
938 case IWN_SDID_x030_14:
939 //iwl6030_2agn_cfg
940 case IWN_SDID_x030_8:
941 case IWN_SDID_x030_11:
942 case IWN_SDID_x030_15:
943 // iwl6030_2bgn_cfg
944 case IWN_SDID_x030_9:
945 case IWN_SDID_x030_12:
946 case IWN_SDID_x030_16:
947 // iwl6030_2abg_cfg
948 case IWN_SDID_x030_13:
949 //iwl6030_2bg_cfg
950 sc->fwname = "iwn6000g2bfw";
951 sc->limits = &iwn6000_sensitivity_limits;
952 sc->base_params = &iwn_6000g2b_base_params;
953 break;
954 default:
955 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
956 "0x%04x rev %d not supported (subdevice)\n", pid,
957 sc->subdevice_id,sc->hw_type);
958 return ENOTSUP;
959 }
960 break;
961 /* 130 Series WiFi */
962 /* XXX: This series will need adjustment for rate.
963 * see rx_with_siso_diversity in linux kernel
964 */
965 case IWN_DID_130_1:
966 case IWN_DID_130_2:
967 switch(sc->subdevice_id) {
968 case IWN_SDID_130_1:
969 case IWN_SDID_130_3:
970 case IWN_SDID_130_5:
971 //iwl130_bgn_cfg
972 case IWN_SDID_130_2:
973 case IWN_SDID_130_4:
974 case IWN_SDID_130_6:
975 //iwl130_bg_cfg
976 sc->fwname = "iwn6000g2bfw";
977 sc->limits = &iwn6000_sensitivity_limits;
978 sc->base_params = &iwn_6000g2b_base_params;
979 break;
980 default:
981 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
982 "0x%04x rev %d not supported (subdevice)\n", pid,
983 sc->subdevice_id,sc->hw_type);
984 return ENOTSUP;
985 }
986 break;
987 /* 100 Series WiFi */
988 case IWN_DID_100_1:
989 case IWN_DID_100_2:
990 switch(sc->subdevice_id) {
991 case IWN_SDID_100_1:
992 case IWN_SDID_100_2:
993 case IWN_SDID_100_3:
994 case IWN_SDID_100_4:
995 case IWN_SDID_100_5:
996 case IWN_SDID_100_6:
997 sc->limits = &iwn1000_sensitivity_limits;
998 sc->base_params = &iwn1000_base_params;
999 sc->fwname = "iwn100fw";
1000 break;
1001 default:
1002 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
1003 "0x%04x rev %d not supported (subdevice)\n", pid,
1004 sc->subdevice_id,sc->hw_type);
1005 return ENOTSUP;
1006 }
1007 break;
1008
1009 /* 105 Series */
1010 /* XXX: This series will need adjustment for rate.
1011 * see rx_with_siso_diversity in linux kernel
1012 */
1013 case IWN_DID_105_1:
1014 case IWN_DID_105_2:
1015 switch(sc->subdevice_id) {
1016 case IWN_SDID_105_1:
1017 case IWN_SDID_105_2:
1018 case IWN_SDID_105_3:
1019 //iwl105_bgn_cfg
1020 case IWN_SDID_105_4:
1021 //iwl105_bgn_d_cfg
1022 sc->limits = &iwn2030_sensitivity_limits;
1023 sc->base_params = &iwn2000_base_params;
1024 sc->fwname = "iwn105fw";
1025 break;
1026 default:
1027 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
1028 "0x%04x rev %d not supported (subdevice)\n", pid,
1029 sc->subdevice_id,sc->hw_type);
1030 return ENOTSUP;
1031 }
1032 break;
1033
1034 /* 135 Series */
1035 /* XXX: This series will need adjustment for rate.
1036 * see rx_with_siso_diversity in linux kernel
1037 */
1038 case IWN_DID_135_1:
1039 case IWN_DID_135_2:
1040 switch(sc->subdevice_id) {
1041 case IWN_SDID_135_1:
1042 case IWN_SDID_135_2:
1043 case IWN_SDID_135_3:
1044 sc->limits = &iwn2030_sensitivity_limits;
1045 sc->base_params = &iwn2030_base_params;
1046 sc->fwname = "iwn135fw";
1047 break;
1048 default:
1049 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
1050 "0x%04x rev %d not supported (subdevice)\n", pid,
1051 sc->subdevice_id,sc->hw_type);
1052 return ENOTSUP;
1053 }
1054 break;
1055
1056 /* 2x00 Series */
1057 case IWN_DID_2x00_1:
1058 case IWN_DID_2x00_2:
1059 switch(sc->subdevice_id) {
1060 case IWN_SDID_2x00_1:
1061 case IWN_SDID_2x00_2:
1062 case IWN_SDID_2x00_3:
1063 //iwl2000_2bgn_cfg
1064 case IWN_SDID_2x00_4:
1065 //iwl2000_2bgn_d_cfg
1066 sc->limits = &iwn2030_sensitivity_limits;
1067 sc->base_params = &iwn2000_base_params;
1068 sc->fwname = "iwn2000fw";
1069 break;
1070 default:
1071 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
1072 "0x%04x rev %d not supported (subdevice) \n",
1073 pid, sc->subdevice_id, sc->hw_type);
1074 return ENOTSUP;
1075 }
1076 break;
1077 /* 2x30 Series */
1078 case IWN_DID_2x30_1:
1079 case IWN_DID_2x30_2:
1080 switch(sc->subdevice_id) {
1081 case IWN_SDID_2x30_1:
1082 case IWN_SDID_2x30_3:
1083 case IWN_SDID_2x30_5:
1084 //iwl100_bgn_cfg
1085 case IWN_SDID_2x30_2:
1086 case IWN_SDID_2x30_4:
1087 case IWN_SDID_2x30_6:
1088 //iwl100_bg_cfg
1089 sc->limits = &iwn2030_sensitivity_limits;
1090 sc->base_params = &iwn2030_base_params;
1091 sc->fwname = "iwn2030fw";
1092 break;
1093 default:
1094 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
1095 "0x%04x rev %d not supported (subdevice)\n", pid,
1096 sc->subdevice_id,sc->hw_type);
1097 return ENOTSUP;
1098 }
1099 break;
1100 /* 5x00 Series */
1101 case IWN_DID_5x00_1:
1102 case IWN_DID_5x00_2:
1103 case IWN_DID_5x00_3:
1104 case IWN_DID_5x00_4:
1105 sc->limits = &iwn5000_sensitivity_limits;
1106 sc->base_params = &iwn5000_base_params;
1107 sc->fwname = "iwn5000fw";
1108 switch(sc->subdevice_id) {
1109 case IWN_SDID_5x00_1:
1110 case IWN_SDID_5x00_2:
1111 case IWN_SDID_5x00_3:
1112 case IWN_SDID_5x00_4:
1113 case IWN_SDID_5x00_9:
1114 case IWN_SDID_5x00_10:
1115 case IWN_SDID_5x00_11:
1116 case IWN_SDID_5x00_12:
1117 case IWN_SDID_5x00_17:
1118 case IWN_SDID_5x00_18:
1119 case IWN_SDID_5x00_19:
1120 case IWN_SDID_5x00_20:
1121 //iwl5100_agn_cfg
1122 sc->txchainmask = IWN_ANT_B;
1123 sc->rxchainmask = IWN_ANT_AB;
1124 break;
1125 case IWN_SDID_5x00_5:
1126 case IWN_SDID_5x00_6:
1127 case IWN_SDID_5x00_13:
1128 case IWN_SDID_5x00_14:
1129 case IWN_SDID_5x00_21:
1130 case IWN_SDID_5x00_22:
1131 //iwl5100_bgn_cfg
1132 sc->txchainmask = IWN_ANT_B;
1133 sc->rxchainmask = IWN_ANT_AB;
1134 break;
1135 case IWN_SDID_5x00_7:
1136 case IWN_SDID_5x00_8:
1137 case IWN_SDID_5x00_15:
1138 case IWN_SDID_5x00_16:
1139 case IWN_SDID_5x00_23:
1140 case IWN_SDID_5x00_24:
1141 //iwl5100_abg_cfg
1142 sc->txchainmask = IWN_ANT_B;
1143 sc->rxchainmask = IWN_ANT_AB;
1144 break;
1145 case IWN_SDID_5x00_25:
1146 case IWN_SDID_5x00_26:
1147 case IWN_SDID_5x00_27:
1148 case IWN_SDID_5x00_28:
1149 case IWN_SDID_5x00_29:
1150 case IWN_SDID_5x00_30:
1151 case IWN_SDID_5x00_31:
1152 case IWN_SDID_5x00_32:
1153 case IWN_SDID_5x00_33:
1154 case IWN_SDID_5x00_34:
1155 case IWN_SDID_5x00_35:
1156 case IWN_SDID_5x00_36:
1157 //iwl5300_agn_cfg
1158 sc->txchainmask = IWN_ANT_ABC;
1159 sc->rxchainmask = IWN_ANT_ABC;
1160 break;
1161 default:
1162 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
1163 "0x%04x rev %d not supported (subdevice)\n", pid,
1164 sc->subdevice_id,sc->hw_type);
1165 return ENOTSUP;
1166 }
1167 break;
1168 /* 5x50 Series */
1169 case IWN_DID_5x50_1:
1170 case IWN_DID_5x50_2:
1171 case IWN_DID_5x50_3:
1172 case IWN_DID_5x50_4:
1173 sc->limits = &iwn5000_sensitivity_limits;
1174 sc->base_params = &iwn5000_base_params;
1175 sc->fwname = "iwn5000fw";
1176 switch(sc->subdevice_id) {
1177 case IWN_SDID_5x50_1:
1178 case IWN_SDID_5x50_2:
1179 case IWN_SDID_5x50_3:
1180 //iwl5350_agn_cfg
1181 sc->limits = &iwn5000_sensitivity_limits;
1182 sc->base_params = &iwn5000_base_params;
1183 sc->fwname = "iwn5000fw";
1184 break;
1185 case IWN_SDID_5x50_4:
1186 case IWN_SDID_5x50_5:
1187 case IWN_SDID_5x50_8:
1188 case IWN_SDID_5x50_9:
1189 case IWN_SDID_5x50_10:
1190 case IWN_SDID_5x50_11:
1191 //iwl5150_agn_cfg
1192 case IWN_SDID_5x50_6:
1193 case IWN_SDID_5x50_7:
1194 case IWN_SDID_5x50_12:
1195 case IWN_SDID_5x50_13:
1196 //iwl5150_abg_cfg
1197 sc->limits = &iwn5000_sensitivity_limits;
1198 sc->fwname = "iwn5150fw";
1199 sc->base_params = &iwn_5x50_base_params;
1200 break;
1201 default:
1202 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :"
1203 "0x%04x rev %d not supported (subdevice)\n", pid,
1204 sc->subdevice_id,sc->hw_type);
1205 return ENOTSUP;
1206 }
1207 break;
1208 default:
1209 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id : 0x%04x"
1210 "rev 0x%08x not supported (device)\n", pid, sc->subdevice_id,
1211 sc->hw_type);
1212 return ENOTSUP;
1213 }
1214 return 0;
1215 }
1216
1217 static int
1218 iwn4965_attach(struct iwn_softc *sc, uint16_t pid)
1219 {
1220 struct iwn_ops *ops = &sc->ops;
1221
1222 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
1223 ops->load_firmware = iwn4965_load_firmware;
1224 ops->read_eeprom = iwn4965_read_eeprom;
1225 ops->post_alive = iwn4965_post_alive;
1226 ops->nic_config = iwn4965_nic_config;
1227 ops->update_sched = iwn4965_update_sched;
1228 ops->get_temperature = iwn4965_get_temperature;
1229 ops->get_rssi = iwn4965_get_rssi;
1230 ops->set_txpower = iwn4965_set_txpower;
1231 ops->init_gains = iwn4965_init_gains;
1232 ops->set_gains = iwn4965_set_gains;
1233 ops->add_node = iwn4965_add_node;
1234 ops->tx_done = iwn4965_tx_done;
1235 ops->ampdu_tx_start = iwn4965_ampdu_tx_start;
1236 ops->ampdu_tx_stop = iwn4965_ampdu_tx_stop;
1237 sc->ntxqs = IWN4965_NTXQUEUES;
1238 sc->firstaggqueue = IWN4965_FIRSTAGGQUEUE;
1239 sc->ndmachnls = IWN4965_NDMACHNLS;
1240 sc->broadcast_id = IWN4965_ID_BROADCAST;
1241 sc->rxonsz = IWN4965_RXONSZ;
1242 sc->schedsz = IWN4965_SCHEDSZ;
1243 sc->fw_text_maxsz = IWN4965_FW_TEXT_MAXSZ;
1244 sc->fw_data_maxsz = IWN4965_FW_DATA_MAXSZ;
1245 sc->fwsz = IWN4965_FWSZ;
1246 sc->sched_txfact_addr = IWN4965_SCHED_TXFACT;
1247 sc->limits = &iwn4965_sensitivity_limits;
1248 sc->fwname = "iwn4965fw";
1249 /* Override chains masks, ROM is known to be broken. */
1250 sc->txchainmask = IWN_ANT_AB;
1251 sc->rxchainmask = IWN_ANT_ABC;
1252 /* Enable normal btcoex */
1253 sc->sc_flags |= IWN_FLAG_BTCOEX;
1254
1255 DPRINTF(sc, IWN_DEBUG_TRACE, "%s: end\n",__func__);
1256
1257 return 0;
1258 }
1259
1260 static int
1261 iwn5000_attach(struct iwn_softc *sc, uint16_t pid)
1262 {
1263 struct iwn_ops *ops = &sc->ops;
1264
1265 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
1266
1267 ops->load_firmware = iwn5000_load_firmware;
1268 ops->read_eeprom = iwn5000_read_eeprom;
1269 ops->post_alive = iwn5000_post_alive;
1270 ops->nic_config = iwn5000_nic_config;
1271 ops->update_sched = iwn5000_update_sched;
1272 ops->get_temperature = iwn5000_get_temperature;
1273 ops->get_rssi = iwn5000_get_rssi;
1274 ops->set_txpower = iwn5000_set_txpower;
1275 ops->init_gains = iwn5000_init_gains;
1276 ops->set_gains = iwn5000_set_gains;
1277 ops->add_node = iwn5000_add_node;
1278 ops->tx_done = iwn5000_tx_done;
1279 ops->ampdu_tx_start = iwn5000_ampdu_tx_start;
1280 ops->ampdu_tx_stop = iwn5000_ampdu_tx_stop;
1281 sc->ntxqs = IWN5000_NTXQUEUES;
1282 sc->firstaggqueue = IWN5000_FIRSTAGGQUEUE;
1283 sc->ndmachnls = IWN5000_NDMACHNLS;
1284 sc->broadcast_id = IWN5000_ID_BROADCAST;
1285 sc->rxonsz = IWN5000_RXONSZ;
1286 sc->schedsz = IWN5000_SCHEDSZ;
1287 sc->fw_text_maxsz = IWN5000_FW_TEXT_MAXSZ;
1288 sc->fw_data_maxsz = IWN5000_FW_DATA_MAXSZ;
1289 sc->fwsz = IWN5000_FWSZ;
1290 sc->sched_txfact_addr = IWN5000_SCHED_TXFACT;
1291 sc->reset_noise_gain = IWN5000_PHY_CALIB_RESET_NOISE_GAIN;
1292 sc->noise_gain = IWN5000_PHY_CALIB_NOISE_GAIN;
1293
1294 return 0;
1295 }
1296
1297 /*
1298 * Attach the interface to 802.11 radiotap.
1299 */
1300 static void
1301 iwn_radiotap_attach(struct iwn_softc *sc)
1302 {
1303
1304 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
1305 ieee80211_radiotap_attach(&sc->sc_ic,
1306 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
1307 IWN_TX_RADIOTAP_PRESENT,
1308 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
1309 IWN_RX_RADIOTAP_PRESENT);
1310 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__);
1311 }
1312
1313 static void
1314 iwn_sysctlattach(struct iwn_softc *sc)
1315 {
1316 #ifdef IWN_DEBUG
1317 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev);
1318 struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev);
1319
1320 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
1321 "debug", CTLFLAG_RW, &sc->sc_debug, sc->sc_debug,
1322 "control debugging printfs");
1323 #endif
1324 }
1325
1326 static struct ieee80211vap *
1327 iwn_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
1328 enum ieee80211_opmode opmode, int flags,
1329 const uint8_t bssid[IEEE80211_ADDR_LEN],
1330 const uint8_t mac[IEEE80211_ADDR_LEN])
1331 {
1332 struct iwn_softc *sc = ic->ic_softc;
1333 struct iwn_vap *ivp;
1334 struct ieee80211vap *vap;
1335
1336 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
1337 return NULL;
1338
1339 ivp = malloc(sizeof(struct iwn_vap), M_80211_VAP, M_WAITOK | M_ZERO);
1340 vap = &ivp->iv_vap;
1341 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid);
1342 ivp->ctx = IWN_RXON_BSS_CTX;
1343 vap->iv_bmissthreshold = 10; /* override default */
1344 /* Override with driver methods. */
1345 ivp->iv_newstate = vap->iv_newstate;
1346 vap->iv_newstate = iwn_newstate;
1347 sc->ivap[IWN_RXON_BSS_CTX] = vap;
1348
1349 ieee80211_ratectl_init(vap);
1350 /* Complete setup. */
1351 ieee80211_vap_attach(vap, iwn_media_change, ieee80211_media_status,
1352 mac);
1353 ic->ic_opmode = opmode;
1354 return vap;
1355 }
1356
1357 static void
1358 iwn_vap_delete(struct ieee80211vap *vap)
1359 {
1360 struct iwn_vap *ivp = IWN_VAP(vap);
1361
1362 ieee80211_ratectl_deinit(vap);
1363 ieee80211_vap_detach(vap);
1364 free(ivp, M_80211_VAP);
1365 }
1366
1367 static void
1368 iwn_xmit_queue_drain(struct iwn_softc *sc)
1369 {
1370 struct mbuf *m;
1371 struct ieee80211_node *ni;
1372
1373 IWN_LOCK_ASSERT(sc);
1374 while ((m = mbufq_dequeue(&sc->sc_xmit_queue)) != NULL) {
1375 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
1376 ieee80211_free_node(ni);
1377 m_freem(m);
1378 }
1379 }
1380
1381 static int
1382 iwn_xmit_queue_enqueue(struct iwn_softc *sc, struct mbuf *m)
1383 {
1384
1385 IWN_LOCK_ASSERT(sc);
1386 return (mbufq_enqueue(&sc->sc_xmit_queue, m));
1387 }
1388
1389 static int
1390 iwn_detach(device_t dev)
1391 {
1392 struct iwn_softc *sc = device_get_softc(dev);
1393 int qid;
1394
1395 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
1396
1397 if (sc->sc_ic.ic_softc != NULL) {
1398 /* Free the mbuf queue and node references */
1399 IWN_LOCK(sc);
1400 iwn_xmit_queue_drain(sc);
1401 IWN_UNLOCK(sc);
1402
1403 ieee80211_draintask(&sc->sc_ic, &sc->sc_radioon_task);
1404 ieee80211_draintask(&sc->sc_ic, &sc->sc_radiooff_task);
1405 iwn_stop(sc);
1406
1407 taskqueue_drain_all(sc->sc_tq);
1408 taskqueue_free(sc->sc_tq);
1409
1410 callout_drain(&sc->watchdog_to);
1411 callout_drain(&sc->scan_timeout);
1412 callout_drain(&sc->calib_to);
1413 ieee80211_ifdetach(&sc->sc_ic);
1414 }
1415
1416 /* Uninstall interrupt handler. */
1417 if (sc->irq != NULL) {
1418 bus_teardown_intr(dev, sc->irq, sc->sc_ih);
1419 bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(sc->irq),
1420 sc->irq);
1421 pci_release_msi(dev);
1422 }
1423
1424 /* Free DMA resources. */
1425 iwn_free_rx_ring(sc, &sc->rxq);
1426 for (qid = 0; qid < sc->ntxqs; qid++)
1427 iwn_free_tx_ring(sc, &sc->txq[qid]);
1428 iwn_free_sched(sc);
1429 iwn_free_kw(sc);
1430 if (sc->ict != NULL)
1431 iwn_free_ict(sc);
1432 iwn_free_fwmem(sc);
1433
1434 if (sc->mem != NULL)
1435 bus_release_resource(dev, SYS_RES_MEMORY,
1436 rman_get_rid(sc->mem), sc->mem);
1437
1438 if (sc->sc_cdev) {
1439 destroy_dev(sc->sc_cdev);
1440 sc->sc_cdev = NULL;
1441 }
1442
1443 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n", __func__);
1444 IWN_LOCK_DESTROY(sc);
1445 return 0;
1446 }
1447
1448 static int
1449 iwn_shutdown(device_t dev)
1450 {
1451 struct iwn_softc *sc = device_get_softc(dev);
1452
1453 iwn_stop(sc);
1454 return 0;
1455 }
1456
1457 static int
1458 iwn_suspend(device_t dev)
1459 {
1460 struct iwn_softc *sc = device_get_softc(dev);
1461
1462 ieee80211_suspend_all(&sc->sc_ic);
1463 return 0;
1464 }
1465
1466 static int
1467 iwn_resume(device_t dev)
1468 {
1469 struct iwn_softc *sc = device_get_softc(dev);
1470
1471 /* Clear device-specific "PCI retry timeout" register (41h). */
1472 pci_write_config(dev, 0x41, 0, 1);
1473
1474 ieee80211_resume_all(&sc->sc_ic);
1475 return 0;
1476 }
1477
1478 static int
1479 iwn_nic_lock(struct iwn_softc *sc)
1480 {
1481 int ntries;
1482
1483 /* Request exclusive access to NIC. */
1484 IWN_SETBITS(sc, IWN_GP_CNTRL, IWN_GP_CNTRL_MAC_ACCESS_REQ);
1485
1486 /* Spin until we actually get the lock. */
1487 for (ntries = 0; ntries < 1000; ntries++) {
1488 if ((IWN_READ(sc, IWN_GP_CNTRL) &
1489 (IWN_GP_CNTRL_MAC_ACCESS_ENA | IWN_GP_CNTRL_SLEEP)) ==
1490 IWN_GP_CNTRL_MAC_ACCESS_ENA)
1491 return 0;
1492 DELAY(10);
1493 }
1494 return ETIMEDOUT;
1495 }
1496
1497 static __inline void
1498 iwn_nic_unlock(struct iwn_softc *sc)
1499 {
1500 IWN_CLRBITS(sc, IWN_GP_CNTRL, IWN_GP_CNTRL_MAC_ACCESS_REQ);
1501 }
1502
1503 static __inline uint32_t
1504 iwn_prph_read(struct iwn_softc *sc, uint32_t addr)
1505 {
1506 IWN_WRITE(sc, IWN_PRPH_RADDR, IWN_PRPH_DWORD | addr);
1507 IWN_BARRIER_READ_WRITE(sc);
1508 return IWN_READ(sc, IWN_PRPH_RDATA);
1509 }
1510
1511 static __inline void
1512 iwn_prph_write(struct iwn_softc *sc, uint32_t addr, uint32_t data)
1513 {
1514 IWN_WRITE(sc, IWN_PRPH_WADDR, IWN_PRPH_DWORD | addr);
1515 IWN_BARRIER_WRITE(sc);
1516 IWN_WRITE(sc, IWN_PRPH_WDATA, data);
1517 }
1518
1519 static __inline void
1520 iwn_prph_setbits(struct iwn_softc *sc, uint32_t addr, uint32_t mask)
1521 {
1522 iwn_prph_write(sc, addr, iwn_prph_read(sc, addr) | mask);
1523 }
1524
1525 static __inline void
1526 iwn_prph_clrbits(struct iwn_softc *sc, uint32_t addr, uint32_t mask)
1527 {
1528 iwn_prph_write(sc, addr, iwn_prph_read(sc, addr) & ~mask);
1529 }
1530
1531 static __inline void
1532 iwn_prph_write_region_4(struct iwn_softc *sc, uint32_t addr,
1533 const uint32_t *data, int count)
1534 {
1535 for (; count > 0; count--, data++, addr += 4)
1536 iwn_prph_write(sc, addr, *data);
1537 }
1538
1539 static __inline uint32_t
1540 iwn_mem_read(struct iwn_softc *sc, uint32_t addr)
1541 {
1542 IWN_WRITE(sc, IWN_MEM_RADDR, addr);
1543 IWN_BARRIER_READ_WRITE(sc);
1544 return IWN_READ(sc, IWN_MEM_RDATA);
1545 }
1546
1547 static __inline void
1548 iwn_mem_write(struct iwn_softc *sc, uint32_t addr, uint32_t data)
1549 {
1550 IWN_WRITE(sc, IWN_MEM_WADDR, addr);
1551 IWN_BARRIER_WRITE(sc);
1552 IWN_WRITE(sc, IWN_MEM_WDATA, data);
1553 }
1554
1555 static __inline void
1556 iwn_mem_write_2(struct iwn_softc *sc, uint32_t addr, uint16_t data)
1557 {
1558 uint32_t tmp;
1559
1560 tmp = iwn_mem_read(sc, addr & ~3);
1561 if (addr & 3)
1562 tmp = (tmp & 0x0000ffff) | data << 16;
1563 else
1564 tmp = (tmp & 0xffff0000) | data;
1565 iwn_mem_write(sc, addr & ~3, tmp);
1566 }
1567
1568 static __inline void
1569 iwn_mem_read_region_4(struct iwn_softc *sc, uint32_t addr, uint32_t *data,
1570 int count)
1571 {
1572 for (; count > 0; count--, addr += 4)
1573 *data++ = iwn_mem_read(sc, addr);
1574 }
1575
1576 static __inline void
1577 iwn_mem_set_region_4(struct iwn_softc *sc, uint32_t addr, uint32_t val,
1578 int count)
1579 {
1580 for (; count > 0; count--, addr += 4)
1581 iwn_mem_write(sc, addr, val);
1582 }
1583
1584 static int
1585 iwn_eeprom_lock(struct iwn_softc *sc)
1586 {
1587 int i, ntries;
1588
1589 for (i = 0; i < 100; i++) {
1590 /* Request exclusive access to EEPROM. */
1591 IWN_SETBITS(sc, IWN_HW_IF_CONFIG,
1592 IWN_HW_IF_CONFIG_EEPROM_LOCKED);
1593
1594 /* Spin until we actually get the lock. */
1595 for (ntries = 0; ntries < 100; ntries++) {
1596 if (IWN_READ(sc, IWN_HW_IF_CONFIG) &
1597 IWN_HW_IF_CONFIG_EEPROM_LOCKED)
1598 return 0;
1599 DELAY(10);
1600 }
1601 }
1602 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end timeout\n", __func__);
1603 return ETIMEDOUT;
1604 }
1605
1606 static __inline void
1607 iwn_eeprom_unlock(struct iwn_softc *sc)
1608 {
1609 IWN_CLRBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_EEPROM_LOCKED);
1610 }
1611
1612 /*
1613 * Initialize access by host to One Time Programmable ROM.
1614 * NB: This kind of ROM can be found on 1000 or 6000 Series only.
1615 */
1616 static int
1617 iwn_init_otprom(struct iwn_softc *sc)
1618 {
1619 uint16_t prev, base, next;
1620 int count, error;
1621
1622 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
1623
1624 /* Wait for clock stabilization before accessing prph. */
1625 if ((error = iwn_clock_wait(sc)) != 0)
1626 return error;
1627
1628 if ((error = iwn_nic_lock(sc)) != 0)
1629 return error;
1630 iwn_prph_setbits(sc, IWN_APMG_PS, IWN_APMG_PS_RESET_REQ);
1631 DELAY(5);
1632 iwn_prph_clrbits(sc, IWN_APMG_PS, IWN_APMG_PS_RESET_REQ);
1633 iwn_nic_unlock(sc);
1634
1635 /* Set auto clock gate disable bit for HW with OTP shadow RAM. */
1636 if (sc->base_params->shadow_ram_support) {
1637 IWN_SETBITS(sc, IWN_DBG_LINK_PWR_MGMT,
1638 IWN_RESET_LINK_PWR_MGMT_DIS);
1639 }
1640 IWN_CLRBITS(sc, IWN_EEPROM_GP, IWN_EEPROM_GP_IF_OWNER);
1641 /* Clear ECC status. */
1642 IWN_SETBITS(sc, IWN_OTP_GP,
1643 IWN_OTP_GP_ECC_CORR_STTS | IWN_OTP_GP_ECC_UNCORR_STTS);
1644
1645 /*
1646 * Find the block before last block (contains the EEPROM image)
1647 * for HW without OTP shadow RAM.
1648 */
1649 if (! sc->base_params->shadow_ram_support) {
1650 /* Switch to absolute addressing mode. */
1651 IWN_CLRBITS(sc, IWN_OTP_GP, IWN_OTP_GP_RELATIVE_ACCESS);
1652 base = prev = 0;
1653 for (count = 0; count < sc->base_params->max_ll_items;
1654 count++) {
1655 error = iwn_read_prom_data(sc, base, &next, 2);
1656 if (error != 0)
1657 return error;
1658 if (next == 0) /* End of linked-list. */
1659 break;
1660 prev = base;
1661 base = le16toh(next);
1662 }
1663 if (count == 0 || count == sc->base_params->max_ll_items)
1664 return EIO;
1665 /* Skip "next" word. */
1666 sc->prom_base = prev + 1;
1667 }
1668
1669 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__);
1670
1671 return 0;
1672 }
1673
1674 static int
1675 iwn_read_prom_data(struct iwn_softc *sc, uint32_t addr, void *data, int count)
1676 {
1677 uint8_t *out = data;
1678 uint32_t val, tmp;
1679 int ntries;
1680
1681 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
1682
1683 addr += sc->prom_base;
1684 for (; count > 0; count -= 2, addr++) {
1685 IWN_WRITE(sc, IWN_EEPROM, addr << 2);
1686 for (ntries = 0; ntries < 10; ntries++) {
1687 val = IWN_READ(sc, IWN_EEPROM);
1688 if (val & IWN_EEPROM_READ_VALID)
1689 break;
1690 DELAY(5);
1691 }
1692 if (ntries == 10) {
1693 device_printf(sc->sc_dev,
1694 "timeout reading ROM at 0x%x\n", addr);
1695 return ETIMEDOUT;
1696 }
1697 if (sc->sc_flags & IWN_FLAG_HAS_OTPROM) {
1698 /* OTPROM, check for ECC errors. */
1699 tmp = IWN_READ(sc, IWN_OTP_GP);
1700 if (tmp & IWN_OTP_GP_ECC_UNCORR_STTS) {
1701 device_printf(sc->sc_dev,
1702 "OTPROM ECC error at 0x%x\n", addr);
1703 return EIO;
1704 }
1705 if (tmp & IWN_OTP_GP_ECC_CORR_STTS) {
1706 /* Correctable ECC error, clear bit. */
1707 IWN_SETBITS(sc, IWN_OTP_GP,
1708 IWN_OTP_GP_ECC_CORR_STTS);
1709 }
1710 }
1711 *out++ = val >> 16;
1712 if (count > 1)
1713 *out++ = val >> 24;
1714 }
1715
1716 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__);
1717
1718 return 0;
1719 }
1720
1721 static void
1722 iwn_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
1723 {
1724 if (error != 0)
1725 return;
1726 KASSERT(nsegs == 1, ("too many DMA segments, %d should be 1", nsegs));
1727 *(bus_addr_t *)arg = segs[0].ds_addr;
1728 }
1729
1730 static int
1731 iwn_dma_contig_alloc(struct iwn_softc *sc, struct iwn_dma_info *dma,
1732 void **kvap, bus_size_t size, bus_size_t alignment)
1733 {
1734 int error;
1735
1736 dma->tag = NULL;
1737 dma->size = size;
1738
1739 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), alignment,
1740 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, size,
1741 1, size, 0, NULL, NULL, &dma->tag);
1742 if (error != 0)
1743 goto fail;
1744
1745 error = bus_dmamem_alloc(dma->tag, (void **)&dma->vaddr,
1746 BUS_DMA_NOWAIT | BUS_DMA_ZERO | BUS_DMA_COHERENT, &dma->map);
1747 if (error != 0)
1748 goto fail;
1749
1750 error = bus_dmamap_load(dma->tag, dma->map, dma->vaddr, size,
1751 iwn_dma_map_addr, &dma->paddr, BUS_DMA_NOWAIT);
1752 if (error != 0)
1753 goto fail;
1754
1755 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
1756
1757 if (kvap != NULL)
1758 *kvap = dma->vaddr;
1759
1760 return 0;
1761
1762 fail: iwn_dma_contig_free(dma);
1763 return error;
1764 }
1765
1766 static void
1767 iwn_dma_contig_free(struct iwn_dma_info *dma)
1768 {
1769 if (dma->vaddr != NULL) {
1770 bus_dmamap_sync(dma->tag, dma->map,
1771 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
1772 bus_dmamap_unload(dma->tag, dma->map);
1773 bus_dmamem_free(dma->tag, dma->vaddr, dma->map);
1774 dma->vaddr = NULL;
1775 }
1776 if (dma->tag != NULL) {
1777 bus_dma_tag_destroy(dma->tag);
1778 dma->tag = NULL;
1779 }
1780 }
1781
1782 static int
1783 iwn_alloc_sched(struct iwn_softc *sc)
1784 {
1785 /* TX scheduler rings must be aligned on a 1KB boundary. */
1786 return iwn_dma_contig_alloc(sc, &sc->sched_dma, (void **)&sc->sched,
1787 sc->schedsz, 1024);
1788 }
1789
1790 static void
1791 iwn_free_sched(struct iwn_softc *sc)
1792 {
1793 iwn_dma_contig_free(&sc->sched_dma);
1794 }
1795
1796 static int
1797 iwn_alloc_kw(struct iwn_softc *sc)
1798 {
1799 /* "Keep Warm" page must be aligned on a 4KB boundary. */
1800 return iwn_dma_contig_alloc(sc, &sc->kw_dma, NULL, 4096, 4096);
1801 }
1802
1803 static void
1804 iwn_free_kw(struct iwn_softc *sc)
1805 {
1806 iwn_dma_contig_free(&sc->kw_dma);
1807 }
1808
1809 static int
1810 iwn_alloc_ict(struct iwn_softc *sc)
1811 {
1812 /* ICT table must be aligned on a 4KB boundary. */
1813 return iwn_dma_contig_alloc(sc, &sc->ict_dma, (void **)&sc->ict,
1814 IWN_ICT_SIZE, 4096);
1815 }
1816
1817 static void
1818 iwn_free_ict(struct iwn_softc *sc)
1819 {
1820 iwn_dma_contig_free(&sc->ict_dma);
1821 }
1822
1823 static int
1824 iwn_alloc_fwmem(struct iwn_softc *sc)
1825 {
1826 /* Must be aligned on a 16-byte boundary. */
1827 return iwn_dma_contig_alloc(sc, &sc->fw_dma, NULL, sc->fwsz, 16);
1828 }
1829
1830 static void
1831 iwn_free_fwmem(struct iwn_softc *sc)
1832 {
1833 iwn_dma_contig_free(&sc->fw_dma);
1834 }
1835
1836 static int
1837 iwn_alloc_rx_ring(struct iwn_softc *sc, struct iwn_rx_ring *ring)
1838 {
1839 bus_size_t size;
1840 int i, error;
1841
1842 ring->cur = 0;
1843
1844 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
1845
1846 /* Allocate RX descriptors (256-byte aligned). */
1847 size = IWN_RX_RING_COUNT * sizeof (uint32_t);
1848 error = iwn_dma_contig_alloc(sc, &ring->desc_dma, (void **)&ring->desc,
1849 size, 256);
1850 if (error != 0) {
1851 device_printf(sc->sc_dev,
1852 "%s: could not allocate RX ring DMA memory, error %d\n",
1853 __func__, error);
1854 goto fail;
1855 }
1856
1857 /* Allocate RX status area (16-byte aligned). */
1858 error = iwn_dma_contig_alloc(sc, &ring->stat_dma, (void **)&ring->stat,
1859 sizeof (struct iwn_rx_status), 16);
1860 if (error != 0) {
1861 device_printf(sc->sc_dev,
1862 "%s: could not allocate RX status DMA memory, error %d\n",
1863 __func__, error);
1864 goto fail;
1865 }
1866
1867 /* Create RX buffer DMA tag. */
1868 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
1869 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
1870 IWN_RBUF_SIZE, 1, IWN_RBUF_SIZE, 0, NULL, NULL, &ring->data_dmat);
1871 if (error != 0) {
1872 device_printf(sc->sc_dev,
1873 "%s: could not create RX buf DMA tag, error %d\n",
1874 __func__, error);
1875 goto fail;
1876 }
1877
1878 /*
1879 * Allocate and map RX buffers.
1880 */
1881 for (i = 0; i < IWN_RX_RING_COUNT; i++) {
1882 struct iwn_rx_data *data = &ring->data[i];
1883 bus_addr_t paddr;
1884
1885 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
1886 if (error != 0) {
1887 device_printf(sc->sc_dev,
1888 "%s: could not create RX buf DMA map, error %d\n",
1889 __func__, error);
1890 goto fail;
1891 }
1892
1893 data->m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR,
1894 IWN_RBUF_SIZE);
1895 if (data->m == NULL) {
1896 device_printf(sc->sc_dev,
1897 "%s: could not allocate RX mbuf\n", __func__);
1898 error = ENOBUFS;
1899 goto fail;
1900 }
1901
1902 error = bus_dmamap_load(ring->data_dmat, data->map,
1903 mtod(data->m, void *), IWN_RBUF_SIZE, iwn_dma_map_addr,
1904 &paddr, BUS_DMA_NOWAIT);
1905 if (error != 0 && error != EFBIG) {
1906 device_printf(sc->sc_dev,
1907 "%s: can't map mbuf, error %d\n", __func__,
1908 error);
1909 goto fail;
1910 }
1911
1912 bus_dmamap_sync(ring->data_dmat, data->map,
1913 BUS_DMASYNC_PREREAD);
1914
1915 /* Set physical address of RX buffer (256-byte aligned). */
1916 ring->desc[i] = htole32(paddr >> 8);
1917 }
1918
1919 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
1920 BUS_DMASYNC_PREWRITE);
1921
1922 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
1923
1924 return 0;
1925
1926 fail: iwn_free_rx_ring(sc, ring);
1927
1928 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end in error\n",__func__);
1929
1930 return error;
1931 }
1932
1933 static void
1934 iwn_reset_rx_ring(struct iwn_softc *sc, struct iwn_rx_ring *ring)
1935 {
1936 int ntries;
1937
1938 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
1939
1940 if (iwn_nic_lock(sc) == 0) {
1941 IWN_WRITE(sc, IWN_FH_RX_CONFIG, 0);
1942 for (ntries = 0; ntries < 1000; ntries++) {
1943 if (IWN_READ(sc, IWN_FH_RX_STATUS) &
1944 IWN_FH_RX_STATUS_IDLE)
1945 break;
1946 DELAY(10);
1947 }
1948 iwn_nic_unlock(sc);
1949 }
1950 ring->cur = 0;
1951 sc->last_rx_valid = 0;
1952 }
1953
1954 static void
1955 iwn_free_rx_ring(struct iwn_softc *sc, struct iwn_rx_ring *ring)
1956 {
1957 int i;
1958
1959 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s \n", __func__);
1960
1961 iwn_dma_contig_free(&ring->desc_dma);
1962 iwn_dma_contig_free(&ring->stat_dma);
1963
1964 for (i = 0; i < IWN_RX_RING_COUNT; i++) {
1965 struct iwn_rx_data *data = &ring->data[i];
1966
1967 if (data->m != NULL) {
1968 bus_dmamap_sync(ring->data_dmat, data->map,
1969 BUS_DMASYNC_POSTREAD);
1970 bus_dmamap_unload(ring->data_dmat, data->map);
1971 m_freem(data->m);
1972 data->m = NULL;
1973 }
1974 if (data->map != NULL)
1975 bus_dmamap_destroy(ring->data_dmat, data->map);
1976 }
1977 if (ring->data_dmat != NULL) {
1978 bus_dma_tag_destroy(ring->data_dmat);
1979 ring->data_dmat = NULL;
1980 }
1981 }
1982
1983 static int
1984 iwn_alloc_tx_ring(struct iwn_softc *sc, struct iwn_tx_ring *ring, int qid)
1985 {
1986 bus_addr_t paddr;
1987 bus_size_t size;
1988 int i, error;
1989
1990 ring->qid = qid;
1991 ring->queued = 0;
1992 ring->cur = 0;
1993
1994 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
1995
1996 /* Allocate TX descriptors (256-byte aligned). */
1997 size = IWN_TX_RING_COUNT * sizeof (struct iwn_tx_desc);
1998 error = iwn_dma_contig_alloc(sc, &ring->desc_dma, (void **)&ring->desc,
1999 size, 256);
2000 if (error != 0) {
2001 device_printf(sc->sc_dev,
2002 "%s: could not allocate TX ring DMA memory, error %d\n",
2003 __func__, error);
2004 goto fail;
2005 }
2006
2007 size = IWN_TX_RING_COUNT * sizeof (struct iwn_tx_cmd);
2008 error = iwn_dma_contig_alloc(sc, &ring->cmd_dma, (void **)&ring->cmd,
2009 size, 4);
2010 if (error != 0) {
2011 device_printf(sc->sc_dev,
2012 "%s: could not allocate TX cmd DMA memory, error %d\n",
2013 __func__, error);
2014 goto fail;
2015 }
2016
2017 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
2018 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES,
2019 IWN_MAX_SCATTER - 1, MCLBYTES, 0, NULL, NULL, &ring->data_dmat);
2020 if (error != 0) {
2021 device_printf(sc->sc_dev,
2022 "%s: could not create TX buf DMA tag, error %d\n",
2023 __func__, error);
2024 goto fail;
2025 }
2026
2027 paddr = ring->cmd_dma.paddr;
2028 for (i = 0; i < IWN_TX_RING_COUNT; i++) {
2029 struct iwn_tx_data *data = &ring->data[i];
2030
2031 data->cmd_paddr = paddr;
2032 data->scratch_paddr = paddr + 12;
2033 paddr += sizeof (struct iwn_tx_cmd);
2034
2035 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
2036 if (error != 0) {
2037 device_printf(sc->sc_dev,
2038 "%s: could not create TX buf DMA map, error %d\n",
2039 __func__, error);
2040 goto fail;
2041 }
2042 }
2043
2044 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__);
2045
2046 return 0;
2047
2048 fail: iwn_free_tx_ring(sc, ring);
2049 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end in error\n", __func__);
2050 return error;
2051 }
2052
2053 static void
2054 iwn_reset_tx_ring(struct iwn_softc *sc, struct iwn_tx_ring *ring)
2055 {
2056 int i;
2057
2058 DPRINTF(sc, IWN_DEBUG_TRACE, "->doing %s \n", __func__);
2059
2060 for (i = 0; i < IWN_TX_RING_COUNT; i++) {
2061 struct iwn_tx_data *data = &ring->data[i];
2062
2063 if (data->m != NULL) {
2064 bus_dmamap_sync(ring->data_dmat, data->map,
2065 BUS_DMASYNC_POSTWRITE);
2066 bus_dmamap_unload(ring->data_dmat, data->map);
2067 m_freem(data->m);
2068 data->m = NULL;
2069 }
2070 if (data->ni != NULL) {
2071 ieee80211_free_node(data->ni);
2072 data->ni = NULL;
2073 }
2074 }
2075 /* Clear TX descriptors. */
2076 memset(ring->desc, 0, ring->desc_dma.size);
2077 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
2078 BUS_DMASYNC_PREWRITE);
2079 sc->qfullmsk &= ~(1 << ring->qid);
2080 ring->queued = 0;
2081 ring->cur = 0;
2082 }
2083
2084 static void
2085 iwn_free_tx_ring(struct iwn_softc *sc, struct iwn_tx_ring *ring)
2086 {
2087 int i;
2088
2089 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s \n", __func__);
2090
2091 iwn_dma_contig_free(&ring->desc_dma);
2092 iwn_dma_contig_free(&ring->cmd_dma);
2093
2094 for (i = 0; i < IWN_TX_RING_COUNT; i++) {
2095 struct iwn_tx_data *data = &ring->data[i];
2096
2097 if (data->m != NULL) {
2098 bus_dmamap_sync(ring->data_dmat, data->map,
2099 BUS_DMASYNC_POSTWRITE);
2100 bus_dmamap_unload(ring->data_dmat, data->map);
2101 m_freem(data->m);
2102 }
2103 if (data->map != NULL)
2104 bus_dmamap_destroy(ring->data_dmat, data->map);
2105 }
2106 if (ring->data_dmat != NULL) {
2107 bus_dma_tag_destroy(ring->data_dmat);
2108 ring->data_dmat = NULL;
2109 }
2110 }
2111
2112 static void
2113 iwn5000_ict_reset(struct iwn_softc *sc)
2114 {
2115 /* Disable interrupts. */
2116 IWN_WRITE(sc, IWN_INT_MASK, 0);
2117
2118 /* Reset ICT table. */
2119 memset(sc->ict, 0, IWN_ICT_SIZE);
2120 sc->ict_cur = 0;
2121
2122 bus_dmamap_sync(sc->ict_dma.tag, sc->ict_dma.map,
2123 BUS_DMASYNC_PREWRITE);
2124
2125 /* Set physical address of ICT table (4KB aligned). */
2126 DPRINTF(sc, IWN_DEBUG_RESET, "%s: enabling ICT\n", __func__);
2127 IWN_WRITE(sc, IWN_DRAM_INT_TBL, IWN_DRAM_INT_TBL_ENABLE |
2128 IWN_DRAM_INT_TBL_WRAP_CHECK | sc->ict_dma.paddr >> 12);
2129
2130 /* Enable periodic RX interrupt. */
2131 sc->int_mask |= IWN_INT_RX_PERIODIC;
2132 /* Switch to ICT interrupt mode in driver. */
2133 sc->sc_flags |= IWN_FLAG_USE_ICT;
2134
2135 /* Re-enable interrupts. */
2136 IWN_WRITE(sc, IWN_INT, 0xffffffff);
2137 IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask);
2138 }
2139
2140 static int
2141 iwn_read_eeprom(struct iwn_softc *sc, uint8_t macaddr[IEEE80211_ADDR_LEN])
2142 {
2143 struct iwn_ops *ops = &sc->ops;
2144 uint16_t val;
2145 int error;
2146
2147 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
2148
2149 /* Check whether adapter has an EEPROM or an OTPROM. */
2150 if (sc->hw_type >= IWN_HW_REV_TYPE_1000 &&
2151 (IWN_READ(sc, IWN_OTP_GP) & IWN_OTP_GP_DEV_SEL_OTP))
2152 sc->sc_flags |= IWN_FLAG_HAS_OTPROM;
2153 DPRINTF(sc, IWN_DEBUG_RESET, "%s found\n",
2154 (sc->sc_flags & IWN_FLAG_HAS_OTPROM) ? "OTPROM" : "EEPROM");
2155
2156 /* Adapter has to be powered on for EEPROM access to work. */
2157 if ((error = iwn_apm_init(sc)) != 0) {
2158 device_printf(sc->sc_dev,
2159 "%s: could not power ON adapter, error %d\n", __func__,
2160 error);
2161 return error;
2162 }
2163
2164 if ((IWN_READ(sc, IWN_EEPROM_GP) & 0x7) == 0) {
2165 device_printf(sc->sc_dev, "%s: bad ROM signature\n", __func__);
2166 return EIO;
2167 }
2168 if ((error = iwn_eeprom_lock(sc)) != 0) {
2169 device_printf(sc->sc_dev, "%s: could not lock ROM, error %d\n",
2170 __func__, error);
2171 return error;
2172 }
2173 if (sc->sc_flags & IWN_FLAG_HAS_OTPROM) {
2174 if ((error = iwn_init_otprom(sc)) != 0) {
2175 device_printf(sc->sc_dev,
2176 "%s: could not initialize OTPROM, error %d\n",
2177 __func__, error);
2178 return error;
2179 }
2180 }
2181
2182 iwn_read_prom_data(sc, IWN_EEPROM_SKU_CAP, &val, 2);
2183 DPRINTF(sc, IWN_DEBUG_RESET, "SKU capabilities=0x%04x\n", le16toh(val));
2184 /* Check if HT support is bonded out. */
2185 if (val & htole16(IWN_EEPROM_SKU_CAP_11N))
2186 sc->sc_flags |= IWN_FLAG_HAS_11N;
2187
2188 iwn_read_prom_data(sc, IWN_EEPROM_RFCFG, &val, 2);
2189 sc->rfcfg = le16toh(val);
2190 DPRINTF(sc, IWN_DEBUG_RESET, "radio config=0x%04x\n", sc->rfcfg);
2191 /* Read Tx/Rx chains from ROM unless it's known to be broken. */
2192 if (sc->txchainmask == 0)
2193 sc->txchainmask = IWN_RFCFG_TXANTMSK(sc->rfcfg);
2194 if (sc->rxchainmask == 0)
2195 sc->rxchainmask = IWN_RFCFG_RXANTMSK(sc->rfcfg);
2196
2197 /* Read MAC address. */
2198 iwn_read_prom_data(sc, IWN_EEPROM_MAC, macaddr, 6);
2199
2200 /* Read adapter-specific information from EEPROM. */
2201 ops->read_eeprom(sc);
2202
2203 iwn_apm_stop(sc); /* Power OFF adapter. */
2204
2205 iwn_eeprom_unlock(sc);
2206
2207 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__);
2208
2209 return 0;
2210 }
2211
2212 static void
2213 iwn4965_read_eeprom(struct iwn_softc *sc)
2214 {
2215 uint32_t addr;
2216 uint16_t val;
2217 int i;
2218
2219 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
2220
2221 /* Read regulatory domain (4 ASCII characters). */
2222 iwn_read_prom_data(sc, IWN4965_EEPROM_DOMAIN, sc->eeprom_domain, 4);
2223
2224 /* Read the list of authorized channels (20MHz & 40MHz). */
2225 for (i = 0; i < IWN_NBANDS - 1; i++) {
2226 addr = iwn4965_regulatory_bands[i];
2227 iwn_read_eeprom_channels(sc, i, addr);
2228 }
2229
2230 /* Read maximum allowed TX power for 2GHz and 5GHz bands. */
2231 iwn_read_prom_data(sc, IWN4965_EEPROM_MAXPOW, &val, 2);
2232 sc->maxpwr2GHz = val & 0xff;
2233 sc->maxpwr5GHz = val >> 8;
2234 /* Check that EEPROM values are within valid range. */
2235 if (sc->maxpwr5GHz < 20 || sc->maxpwr5GHz > 50)
2236 sc->maxpwr5GHz = 38;
2237 if (sc->maxpwr2GHz < 20 || sc->maxpwr2GHz > 50)
2238 sc->maxpwr2GHz = 38;
2239 DPRINTF(sc, IWN_DEBUG_RESET, "maxpwr 2GHz=%d 5GHz=%d\n",
2240 sc->maxpwr2GHz, sc->maxpwr5GHz);
2241
2242 /* Read samples for each TX power group. */
2243 iwn_read_prom_data(sc, IWN4965_EEPROM_BANDS, sc->bands,
2244 sizeof sc->bands);
2245
2246 /* Read voltage at which samples were taken. */
2247 iwn_read_prom_data(sc, IWN4965_EEPROM_VOLTAGE, &val, 2);
2248 sc->eeprom_voltage = (int16_t)le16toh(val);
2249 DPRINTF(sc, IWN_DEBUG_RESET, "voltage=%d (in 0.3V)\n",
2250 sc->eeprom_voltage);
2251
2252 #ifdef IWN_DEBUG
2253 /* Print samples. */
2254 if (sc->sc_debug & IWN_DEBUG_ANY) {
2255 for (i = 0; i < IWN_NBANDS - 1; i++)
2256 iwn4965_print_power_group(sc, i);
2257 }
2258 #endif
2259
2260 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__);
2261 }
2262
2263 #ifdef IWN_DEBUG
2264 static void
2265 iwn4965_print_power_group(struct iwn_softc *sc, int i)
2266 {
2267 struct iwn4965_eeprom_band *band = &sc->bands[i];
2268 struct iwn4965_eeprom_chan_samples *chans = band->chans;
2269 int j, c;
2270
2271 printf("===band %d===\n", i);
2272 printf("chan lo=%d, chan hi=%d\n", band->lo, band->hi);
2273 printf("chan1 num=%d\n", chans[0].num);
2274 for (c = 0; c < 2; c++) {
2275 for (j = 0; j < IWN_NSAMPLES; j++) {
2276 printf("chain %d, sample %d: temp=%d gain=%d "
2277 "power=%d pa_det=%d\n", c, j,
2278 chans[0].samples[c][j].temp,
2279 chans[0].samples[c][j].gain,
2280 chans[0].samples[c][j].power,
2281 chans[0].samples[c][j].pa_det);
2282 }
2283 }
2284 printf("chan2 num=%d\n", chans[1].num);
2285 for (c = 0; c < 2; c++) {
2286 for (j = 0; j < IWN_NSAMPLES; j++) {
2287 printf("chain %d, sample %d: temp=%d gain=%d "
2288 "power=%d pa_det=%d\n", c, j,
2289 chans[1].samples[c][j].temp,
2290 chans[1].samples[c][j].gain,
2291 chans[1].samples[c][j].power,
2292 chans[1].samples[c][j].pa_det);
2293 }
2294 }
2295 }
2296 #endif
2297
2298 static void
2299 iwn5000_read_eeprom(struct iwn_softc *sc)
2300 {
2301 struct iwn5000_eeprom_calib_hdr hdr;
2302 int32_t volt;
2303 uint32_t base, addr;
2304 uint16_t val;
2305 int i;
2306
2307 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
2308
2309 /* Read regulatory domain (4 ASCII characters). */
2310 iwn_read_prom_data(sc, IWN5000_EEPROM_REG, &val, 2);
2311 base = le16toh(val);
2312 iwn_read_prom_data(sc, base + IWN5000_EEPROM_DOMAIN,
2313 sc->eeprom_domain, 4);
2314
2315 /* Read the list of authorized channels (20MHz & 40MHz). */
2316 for (i = 0; i < IWN_NBANDS - 1; i++) {
2317 addr = base + sc->base_params->regulatory_bands[i];
2318 iwn_read_eeprom_channels(sc, i, addr);
2319 }
2320
2321 /* Read enhanced TX power information for 6000 Series. */
2322 if (sc->base_params->enhanced_TX_power)
2323 iwn_read_eeprom_enhinfo(sc);
2324
2325 iwn_read_prom_data(sc, IWN5000_EEPROM_CAL, &val, 2);
2326 base = le16toh(val);
2327 iwn_read_prom_data(sc, base, &hdr, sizeof hdr);
2328 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
2329 "%s: calib version=%u pa type=%u voltage=%u\n", __func__,
2330 hdr.version, hdr.pa_type, le16toh(hdr.volt));
2331 sc->calib_ver = hdr.version;
2332
2333 if (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_TEMP_OFFSETv2) {
2334 sc->eeprom_voltage = le16toh(hdr.volt);
2335 iwn_read_prom_data(sc, base + IWN5000_EEPROM_TEMP, &val, 2);
2336 sc->eeprom_temp_high=le16toh(val);
2337 iwn_read_prom_data(sc, base + IWN5000_EEPROM_VOLT, &val, 2);
2338 sc->eeprom_temp = le16toh(val);
2339 }
2340
2341 if (sc->hw_type == IWN_HW_REV_TYPE_5150) {
2342 /* Compute temperature offset. */
2343 iwn_read_prom_data(sc, base + IWN5000_EEPROM_TEMP, &val, 2);
2344 sc->eeprom_temp = le16toh(val);
2345 iwn_read_prom_data(sc, base + IWN5000_EEPROM_VOLT, &val, 2);
2346 volt = le16toh(val);
2347 sc->temp_off = sc->eeprom_temp - (volt / -5);
2348 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "temp=%d volt=%d offset=%dK\n",
2349 sc->eeprom_temp, volt, sc->temp_off);
2350 } else {
2351 /* Read crystal calibration. */
2352 iwn_read_prom_data(sc, base + IWN5000_EEPROM_CRYSTAL,
2353 &sc->eeprom_crystal, sizeof (uint32_t));
2354 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "crystal calibration 0x%08x\n",
2355 le32toh(sc->eeprom_crystal));
2356 }
2357
2358 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__);
2359
2360 }
2361
2362 /*
2363 * Translate EEPROM flags to net80211.
2364 */
2365 static uint32_t
2366 iwn_eeprom_channel_flags(struct iwn_eeprom_chan *channel)
2367 {
2368 uint32_t nflags;
2369
2370 nflags = 0;
2371 if ((channel->flags & IWN_EEPROM_CHAN_ACTIVE) == 0)
2372 nflags |= IEEE80211_CHAN_PASSIVE;
2373 if ((channel->flags & IWN_EEPROM_CHAN_IBSS) == 0)
2374 nflags |= IEEE80211_CHAN_NOADHOC;
2375 if (channel->flags & IWN_EEPROM_CHAN_RADAR) {
2376 nflags |= IEEE80211_CHAN_DFS;
2377 /* XXX apparently IBSS may still be marked */
2378 nflags |= IEEE80211_CHAN_NOADHOC;
2379 }
2380
2381 return nflags;
2382 }
2383
2384 static void
2385 iwn_read_eeprom_band(struct iwn_softc *sc, int n, int maxchans, int *nchans,
2386 struct ieee80211_channel chans[])
2387 {
2388 struct iwn_eeprom_chan *channels = sc->eeprom_channels[n];
2389 const struct iwn_chan_band *band = &iwn_bands[n];
2390 uint8_t bands[IEEE80211_MODE_BYTES];
2391 uint8_t chan;
2392 int i, error, nflags;
2393
2394 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
2395
2396 memset(bands, 0, sizeof(bands));
2397 if (n == 0) {
2398 setbit(bands, IEEE80211_MODE_11B);
2399 setbit(bands, IEEE80211_MODE_11G);
2400 if (sc->sc_flags & IWN_FLAG_HAS_11N)
2401 setbit(bands, IEEE80211_MODE_11NG);
2402 } else {
2403 setbit(bands, IEEE80211_MODE_11A);
2404 if (sc->sc_flags & IWN_FLAG_HAS_11N)
2405 setbit(bands, IEEE80211_MODE_11NA);
2406 }
2407
2408 for (i = 0; i < band->nchan; i++) {
2409 if (!(channels[i].flags & IWN_EEPROM_CHAN_VALID)) {
2410 DPRINTF(sc, IWN_DEBUG_RESET,
2411 "skip chan %d flags 0x%x maxpwr %d\n",
2412 band->chan[i], channels[i].flags,
2413 channels[i].maxpwr);
2414 continue;
2415 }
2416
2417 chan = band->chan[i];
2418 nflags = iwn_eeprom_channel_flags(&channels[i]);
2419 error = ieee80211_add_channel(chans, maxchans, nchans,
2420 chan, 0, channels[i].maxpwr, nflags, bands);
2421 if (error != 0)
2422 break;
2423
2424 /* Save maximum allowed TX power for this channel. */
2425 /* XXX wrong */
2426 sc->maxpwr[chan] = channels[i].maxpwr;
2427
2428 DPRINTF(sc, IWN_DEBUG_RESET,
2429 "add chan %d flags 0x%x maxpwr %d\n", chan,
2430 channels[i].flags, channels[i].maxpwr);
2431 }
2432
2433 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__);
2434
2435 }
2436
2437 static void
2438 iwn_read_eeprom_ht40(struct iwn_softc *sc, int n, int maxchans, int *nchans,
2439 struct ieee80211_channel chans[])
2440 {
2441 struct iwn_eeprom_chan *channels = sc->eeprom_channels[n];
2442 const struct iwn_chan_band *band = &iwn_bands[n];
2443 uint8_t chan;
2444 int i, error, nflags;
2445
2446 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s start\n", __func__);
2447
2448 if (!(sc->sc_flags & IWN_FLAG_HAS_11N)) {
2449 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end no 11n\n", __func__);
2450 return;
2451 }
2452
2453 for (i = 0; i < band->nchan; i++) {
2454 if (!(channels[i].flags & IWN_EEPROM_CHAN_VALID)) {
2455 DPRINTF(sc, IWN_DEBUG_RESET,
2456 "skip chan %d flags 0x%x maxpwr %d\n",
2457 band->chan[i], channels[i].flags,
2458 channels[i].maxpwr);
2459 continue;
2460 }
2461
2462 chan = band->chan[i];
2463 nflags = iwn_eeprom_channel_flags(&channels[i]);
2464 nflags |= (n == 5 ? IEEE80211_CHAN_G : IEEE80211_CHAN_A);
2465 error = ieee80211_add_channel_ht40(chans, maxchans, nchans,
2466 chan, channels[i].maxpwr, nflags);
2467 switch (error) {
2468 case EINVAL:
2469 device_printf(sc->sc_dev,
2470 "%s: no entry for channel %d\n", __func__, chan);
2471 continue;
2472 case ENOENT:
2473 DPRINTF(sc, IWN_DEBUG_RESET,
2474 "%s: skip chan %d, extension channel not found\n",
2475 __func__, chan);
2476 continue;
2477 case ENOBUFS:
2478 device_printf(sc->sc_dev,
2479 "%s: channel table is full!\n", __func__);
2480 break;
2481 case 0:
2482 DPRINTF(sc, IWN_DEBUG_RESET,
2483 "add ht40 chan %d flags 0x%x maxpwr %d\n",
2484 chan, channels[i].flags, channels[i].maxpwr);
2485 /* FALLTHROUGH */
2486 default:
2487 break;
2488 }
2489 }
2490
2491 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__);
2492
2493 }
2494
2495 static void
2496 iwn_read_eeprom_channels(struct iwn_softc *sc, int n, uint32_t addr)
2497 {
2498 struct ieee80211com *ic = &sc->sc_ic;
2499
2500 iwn_read_prom_data(sc, addr, &sc->eeprom_channels[n],
2501 iwn_bands[n].nchan * sizeof (struct iwn_eeprom_chan));
2502
2503 if (n < 5) {
2504 iwn_read_eeprom_band(sc, n, IEEE80211_CHAN_MAX, &ic->ic_nchans,
2505 ic->ic_channels);
2506 } else {
2507 iwn_read_eeprom_ht40(sc, n, IEEE80211_CHAN_MAX, &ic->ic_nchans,
2508 ic->ic_channels);
2509 }
2510 ieee80211_sort_channels(ic->ic_channels, ic->ic_nchans);
2511 }
2512
2513 static struct iwn_eeprom_chan *
2514 iwn_find_eeprom_channel(struct iwn_softc *sc, struct ieee80211_channel *c)
2515 {
2516 int band, chan, i, j;
2517
2518 if (IEEE80211_IS_CHAN_HT40(c)) {
2519 band = IEEE80211_IS_CHAN_5GHZ(c) ? 6 : 5;
2520 if (IEEE80211_IS_CHAN_HT40D(c))
2521 chan = c->ic_extieee;
2522 else
2523 chan = c->ic_ieee;
2524 for (i = 0; i < iwn_bands[band].nchan; i++) {
2525 if (iwn_bands[band].chan[i] == chan)
2526 return &sc->eeprom_channels[band][i];
2527 }
2528 } else {
2529 for (j = 0; j < 5; j++) {
2530 for (i = 0; i < iwn_bands[j].nchan; i++) {
2531 if (iwn_bands[j].chan[i] == c->ic_ieee &&
2532 ((j == 0) ^ IEEE80211_IS_CHAN_A(c)) == 1)
2533 return &sc->eeprom_channels[j][i];
2534 }
2535 }
2536 }
2537 return NULL;
2538 }
2539
2540 static void
2541 iwn_getradiocaps(struct ieee80211com *ic,
2542 int maxchans, int *nchans, struct ieee80211_channel chans[])
2543 {
2544 struct iwn_softc *sc = ic->ic_softc;
2545 int i;
2546
2547 /* Parse the list of authorized channels. */
2548 for (i = 0; i < 5 && *nchans < maxchans; i++)
2549 iwn_read_eeprom_band(sc, i, maxchans, nchans, chans);
2550 for (i = 5; i < IWN_NBANDS - 1 && *nchans < maxchans; i++)
2551 iwn_read_eeprom_ht40(sc, i, maxchans, nchans, chans);
2552 }
2553
2554 /*
2555 * Enforce flags read from EEPROM.
2556 */
2557 static int
2558 iwn_setregdomain(struct ieee80211com *ic, struct ieee80211_regdomain *rd,
2559 int nchan, struct ieee80211_channel chans[])
2560 {
2561 struct iwn_softc *sc = ic->ic_softc;
2562 int i;
2563
2564 for (i = 0; i < nchan; i++) {
2565 struct ieee80211_channel *c = &chans[i];
2566 struct iwn_eeprom_chan *channel;
2567
2568 channel = iwn_find_eeprom_channel(sc, c);
2569 if (channel == NULL) {
2570 ic_printf(ic, "%s: invalid channel %u freq %u/0x%x\n",
2571 __func__, c->ic_ieee, c->ic_freq, c->ic_flags);
2572 return EINVAL;
2573 }
2574 c->ic_flags |= iwn_eeprom_channel_flags(channel);
2575 }
2576
2577 return 0;
2578 }
2579
2580 static void
2581 iwn_read_eeprom_enhinfo(struct iwn_softc *sc)
2582 {
2583 struct iwn_eeprom_enhinfo enhinfo[35];
2584 struct ieee80211com *ic = &sc->sc_ic;
2585 struct ieee80211_channel *c;
2586 uint16_t val, base;
2587 int8_t maxpwr;
2588 uint8_t flags;
2589 int i, j;
2590
2591 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
2592
2593 iwn_read_prom_data(sc, IWN5000_EEPROM_REG, &val, 2);
2594 base = le16toh(val);
2595 iwn_read_prom_data(sc, base + IWN6000_EEPROM_ENHINFO,
2596 enhinfo, sizeof enhinfo);
2597
2598 for (i = 0; i < nitems(enhinfo); i++) {
2599 flags = enhinfo[i].flags;
2600 if (!(flags & IWN_ENHINFO_VALID))
2601 continue; /* Skip invalid entries. */
2602
2603 maxpwr = 0;
2604 if (sc->txchainmask & IWN_ANT_A)
2605 maxpwr = MAX(maxpwr, enhinfo[i].chain[0]);
2606 if (sc->txchainmask & IWN_ANT_B)
2607 maxpwr = MAX(maxpwr, enhinfo[i].chain[1]);
2608 if (sc->txchainmask & IWN_ANT_C)
2609 maxpwr = MAX(maxpwr, enhinfo[i].chain[2]);
2610 if (sc->ntxchains == 2)
2611 maxpwr = MAX(maxpwr, enhinfo[i].mimo2);
2612 else if (sc->ntxchains == 3)
2613 maxpwr = MAX(maxpwr, enhinfo[i].mimo3);
2614
2615 for (j = 0; j < ic->ic_nchans; j++) {
2616 c = &ic->ic_channels[j];
2617 if ((flags & IWN_ENHINFO_5GHZ)) {
2618 if (!IEEE80211_IS_CHAN_A(c))
2619 continue;
2620 } else if ((flags & IWN_ENHINFO_OFDM)) {
2621 if (!IEEE80211_IS_CHAN_G(c))
2622 continue;
2623 } else if (!IEEE80211_IS_CHAN_B(c))
2624 continue;
2625 if ((flags & IWN_ENHINFO_HT40)) {
2626 if (!IEEE80211_IS_CHAN_HT40(c))
2627 continue;
2628 } else {
2629 if (IEEE80211_IS_CHAN_HT40(c))
2630 continue;
2631 }
2632 if (enhinfo[i].chan != 0 &&
2633 enhinfo[i].chan != c->ic_ieee)
2634 continue;
2635
2636 DPRINTF(sc, IWN_DEBUG_RESET,
2637 "channel %d(%x), maxpwr %d\n", c->ic_ieee,
2638 c->ic_flags, maxpwr / 2);
2639 c->ic_maxregpower = maxpwr / 2;
2640 c->ic_maxpower = maxpwr;
2641 }
2642 }
2643
2644 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__);
2645
2646 }
2647
2648 static struct ieee80211_node *
2649 iwn_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN])
2650 {
2651 return malloc(sizeof (struct iwn_node), M_80211_NODE,M_NOWAIT | M_ZERO);
2652 }
2653
2654 static __inline int
2655 rate2plcp(int rate)
2656 {
2657 switch (rate & 0xff) {
2658 case 12: return 0xd;
2659 case 18: return 0xf;
2660 case 24: return 0x5;
2661 case 36: return 0x7;
2662 case 48: return 0x9;
2663 case 72: return 0xb;
2664 case 96: return 0x1;
2665 case 108: return 0x3;
2666 case 2: return 10;
2667 case 4: return 20;
2668 case 11: return 55;
2669 case 22: return 110;
2670 }
2671 return 0;
2672 }
2673
2674 static int
2675 iwn_get_1stream_tx_antmask(struct iwn_softc *sc)
2676 {
2677
2678 return IWN_LSB(sc->txchainmask);
2679 }
2680
2681 static int
2682 iwn_get_2stream_tx_antmask(struct iwn_softc *sc)
2683 {
2684 int tx;
2685
2686 /*
2687 * The '2 stream' setup is a bit .. odd.
2688 *
2689 * For NICs that support only 1 antenna, default to IWN_ANT_AB or
2690 * the firmware panics (eg Intel 5100.)
2691 *
2692 * For NICs that support two antennas, we use ANT_AB.
2693 *
2694 * For NICs that support three antennas, we use the two that
2695 * wasn't the default one.
2696 *
2697 * XXX TODO: if bluetooth (full concurrent) is enabled, restrict
2698 * this to only one antenna.
2699 */
2700
2701 /* Default - transmit on the other antennas */
2702 tx = (sc->txchainmask & ~IWN_LSB(sc->txchainmask));
2703
2704 /* Now, if it's zero, set it to IWN_ANT_AB, so to not panic firmware */
2705 if (tx == 0)
2706 tx = IWN_ANT_AB;
2707
2708 /*
2709 * If the NIC is a two-stream TX NIC, configure the TX mask to
2710 * the default chainmask
2711 */
2712 else if (sc->ntxchains == 2)
2713 tx = sc->txchainmask;
2714
2715 return (tx);
2716 }
2717
2718
2719
2720 /*
2721 * Calculate the required PLCP value from the given rate,
2722 * to the given node.
2723 *
2724 * This will take the node configuration (eg 11n, rate table
2725 * setup, etc) into consideration.
2726 */
2727 static uint32_t
2728 iwn_rate_to_plcp(struct iwn_softc *sc, struct ieee80211_node *ni,
2729 uint8_t rate)
2730 {
2731 struct ieee80211com *ic = ni->ni_ic;
2732 uint32_t plcp = 0;
2733 int ridx;
2734
2735 /*
2736 * If it's an MCS rate, let's set the plcp correctly
2737 * and set the relevant flags based on the node config.
2738 */
2739 if (rate & IEEE80211_RATE_MCS) {
2740 /*
2741 * Set the initial PLCP value to be between 0->31 for
2742 * MCS 0 -> MCS 31, then set the "I'm an MCS rate!"
2743 * flag.
2744 */
2745 plcp = IEEE80211_RV(rate) | IWN_RFLAG_MCS;
2746
2747 /*
2748 * XXX the following should only occur if both
2749 * the local configuration _and_ the remote node
2750 * advertise these capabilities. Thus this code
2751 * may need fixing!
2752 */
2753
2754 /*
2755 * Set the channel width and guard interval.
2756 */
2757 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) {
2758 plcp |= IWN_RFLAG_HT40;
2759 if (ni->ni_htcap & IEEE80211_HTCAP_SHORTGI40)
2760 plcp |= IWN_RFLAG_SGI;
2761 } else if (ni->ni_htcap & IEEE80211_HTCAP_SHORTGI20) {
2762 plcp |= IWN_RFLAG_SGI;
2763 }
2764
2765 /*
2766 * Ensure the selected rate matches the link quality
2767 * table entries being used.
2768 */
2769 if (rate > 0x8f)
2770 plcp |= IWN_RFLAG_ANT(sc->txchainmask);
2771 else if (rate > 0x87)
2772 plcp |= IWN_RFLAG_ANT(iwn_get_2stream_tx_antmask(sc));
2773 else
2774 plcp |= IWN_RFLAG_ANT(iwn_get_1stream_tx_antmask(sc));
2775 } else {
2776 /*
2777 * Set the initial PLCP - fine for both
2778 * OFDM and CCK rates.
2779 */
2780 plcp = rate2plcp(rate);
2781
2782 /* Set CCK flag if it's CCK */
2783
2784 /* XXX It would be nice to have a method
2785 * to map the ridx -> phy table entry
2786 * so we could just query that, rather than
2787 * this hack to check against IWN_RIDX_OFDM6.
2788 */
2789 ridx = ieee80211_legacy_rate_lookup(ic->ic_rt,
2790 rate & IEEE80211_RATE_VAL);
2791 if (ridx < IWN_RIDX_OFDM6 &&
2792 IEEE80211_IS_CHAN_2GHZ(ni->ni_chan))
2793 plcp |= IWN_RFLAG_CCK;
2794
2795 /* Set antenna configuration */
2796 /* XXX TODO: is this the right antenna to use for legacy? */
2797 plcp |= IWN_RFLAG_ANT(iwn_get_1stream_tx_antmask(sc));
2798 }
2799
2800 DPRINTF(sc, IWN_DEBUG_TXRATE, "%s: rate=0x%02x, plcp=0x%08x\n",
2801 __func__,
2802 rate,
2803 plcp);
2804
2805 return (htole32(plcp));
2806 }
2807
2808 static void
2809 iwn_newassoc(struct ieee80211_node *ni, int isnew)
2810 {
2811 /* Doesn't do anything at the moment */
2812 }
2813
2814 static int
2815 iwn_media_change(struct ifnet *ifp)
2816 {
2817 int error;
2818
2819 error = ieee80211_media_change(ifp);
2820 /* NB: only the fixed rate can change and that doesn't need a reset */
2821 return (error == ENETRESET ? 0 : error);
2822 }
2823
2824 static int
2825 iwn_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
2826 {
2827 struct iwn_vap *ivp = IWN_VAP(vap);
2828 struct ieee80211com *ic = vap->iv_ic;
2829 struct iwn_softc *sc = ic->ic_softc;
2830 int error = 0;
2831
2832 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
2833
2834 DPRINTF(sc, IWN_DEBUG_STATE, "%s: %s -> %s\n", __func__,
2835 ieee80211_state_name[vap->iv_state], ieee80211_state_name[nstate]);
2836
2837 IEEE80211_UNLOCK(ic);
2838 IWN_LOCK(sc);
2839 callout_stop(&sc->calib_to);
2840
2841 sc->rxon = &sc->rx_on[IWN_RXON_BSS_CTX];
2842
2843 switch (nstate) {
2844 case IEEE80211_S_ASSOC:
2845 if (vap->iv_state != IEEE80211_S_RUN)
2846 break;
2847 /* FALLTHROUGH */
2848 case IEEE80211_S_AUTH:
2849 if (vap->iv_state == IEEE80211_S_AUTH)
2850 break;
2851
2852 /*
2853 * !AUTH -> AUTH transition requires state reset to handle
2854 * reassociations correctly.
2855 */
2856 sc->rxon->associd = 0;
2857 sc->rxon->filter &= ~htole32(IWN_FILTER_BSS);
2858 sc->calib.state = IWN_CALIB_STATE_INIT;
2859
2860 /* Wait until we hear a beacon before we transmit */
2861 if (IEEE80211_IS_CHAN_PASSIVE(ic->ic_curchan))
2862 sc->sc_beacon_wait = 1;
2863
2864 if ((error = iwn_auth(sc, vap)) != 0) {
2865 device_printf(sc->sc_dev,
2866 "%s: could not move to auth state\n", __func__);
2867 }
2868 break;
2869
2870 case IEEE80211_S_RUN:
2871 /*
2872 * RUN -> RUN transition; Just restart the timers.
2873 */
2874 if (vap->iv_state == IEEE80211_S_RUN) {
2875 sc->calib_cnt = 0;
2876 break;
2877 }
2878
2879 /* Wait until we hear a beacon before we transmit */
2880 if (IEEE80211_IS_CHAN_PASSIVE(ic->ic_curchan))
2881 sc->sc_beacon_wait = 1;
2882
2883 /*
2884 * !RUN -> RUN requires setting the association id
2885 * which is done with a firmware cmd. We also defer
2886 * starting the timers until that work is done.
2887 */
2888 if ((error = iwn_run(sc, vap)) != 0) {
2889 device_printf(sc->sc_dev,
2890 "%s: could not move to run state\n", __func__);
2891 }
2892 break;
2893
2894 case IEEE80211_S_INIT:
2895 sc->calib.state = IWN_CALIB_STATE_INIT;
2896 /*
2897 * Purge the xmit queue so we don't have old frames
2898 * during a new association attempt.
2899 */
2900 sc->sc_beacon_wait = 0;
2901 iwn_xmit_queue_drain(sc);
2902 break;
2903
2904 default:
2905 break;
2906 }
2907 IWN_UNLOCK(sc);
2908 IEEE80211_LOCK(ic);
2909 if (error != 0){
2910 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end in error\n", __func__);
2911 return error;
2912 }
2913
2914 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
2915
2916 return ivp->iv_newstate(vap, nstate, arg);
2917 }
2918
2919 static void
2920 iwn_calib_timeout(void *arg)
2921 {
2922 struct iwn_softc *sc = arg;
2923
2924 IWN_LOCK_ASSERT(sc);
2925
2926 /* Force automatic TX power calibration every 60 secs. */
2927 if (++sc->calib_cnt >= 120) {
2928 uint32_t flags = 0;
2929
2930 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s\n",
2931 "sending request for statistics");
2932 (void)iwn_cmd(sc, IWN_CMD_GET_STATISTICS, &flags,
2933 sizeof flags, 1);
2934 sc->calib_cnt = 0;
2935 }
2936 callout_reset(&sc->calib_to, msecs_to_ticks(500), iwn_calib_timeout,
2937 sc);
2938 }
2939
2940 /*
2941 * Process an RX_PHY firmware notification. This is usually immediately
2942 * followed by an MPDU_RX_DONE notification.
2943 */
2944 static void
2945 iwn_rx_phy(struct iwn_softc *sc, struct iwn_rx_desc *desc,
2946 struct iwn_rx_data *data)
2947 {
2948 struct iwn_rx_stat *stat = (struct iwn_rx_stat *)(desc + 1);
2949
2950 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: received PHY stats\n", __func__);
2951 bus_dmamap_sync(sc->rxq.data_dmat, data->map, BUS_DMASYNC_POSTREAD);
2952
2953 /* Save RX statistics, they will be used on MPDU_RX_DONE. */
2954 memcpy(&sc->last_rx_stat, stat, sizeof (*stat));
2955 sc->last_rx_valid = 1;
2956 }
2957
2958 /*
2959 * Process an RX_DONE (4965AGN only) or MPDU_RX_DONE firmware notification.
2960 * Each MPDU_RX_DONE notification must be preceded by an RX_PHY one.
2961 */
2962 static void
2963 iwn_rx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc,
2964 struct iwn_rx_data *data)
2965 {
2966 struct iwn_ops *ops = &sc->ops;
2967 struct ieee80211com *ic = &sc->sc_ic;
2968 struct iwn_rx_ring *ring = &sc->rxq;
2969 struct ieee80211_frame *wh;
2970 struct ieee80211_node *ni;
2971 struct mbuf *m, *m1;
2972 struct iwn_rx_stat *stat;
2973 caddr_t head;
2974 bus_addr_t paddr;
2975 uint32_t flags;
2976 int error, len, rssi, nf;
2977
2978 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
2979
2980 if (desc->type == IWN_MPDU_RX_DONE) {
2981 /* Check for prior RX_PHY notification. */
2982 if (!sc->last_rx_valid) {
2983 DPRINTF(sc, IWN_DEBUG_ANY,
2984 "%s: missing RX_PHY\n", __func__);
2985 return;
2986 }
2987 stat = &sc->last_rx_stat;
2988 } else
2989 stat = (struct iwn_rx_stat *)(desc + 1);
2990
2991 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTREAD);
2992
2993 if (stat->cfg_phy_len > IWN_STAT_MAXLEN) {
2994 device_printf(sc->sc_dev,
2995 "%s: invalid RX statistic header, len %d\n", __func__,
2996 stat->cfg_phy_len);
2997 return;
2998 }
2999 if (desc->type == IWN_MPDU_RX_DONE) {
3000 struct iwn_rx_mpdu *mpdu = (struct iwn_rx_mpdu *)(desc + 1);
3001 head = (caddr_t)(mpdu + 1);
3002 len = le16toh(mpdu->len);
3003 } else {
3004 head = (caddr_t)(stat + 1) + stat->cfg_phy_len;
3005 len = le16toh(stat->len);
3006 }
3007
3008 flags = le32toh(*(uint32_t *)(head + len));
3009
3010 /* Discard frames with a bad FCS early. */
3011 if ((flags & IWN_RX_NOERROR) != IWN_RX_NOERROR) {
3012 DPRINTF(sc, IWN_DEBUG_RECV, "%s: RX flags error %x\n",
3013 __func__, flags);
3014 counter_u64_add(ic->ic_ierrors, 1);
3015 return;
3016 }
3017 /* Discard frames that are too short. */
3018 if (len < sizeof (struct ieee80211_frame_ack)) {
3019 DPRINTF(sc, IWN_DEBUG_RECV, "%s: frame too short: %d\n",
3020 __func__, len);
3021 counter_u64_add(ic->ic_ierrors, 1);
3022 return;
3023 }
3024
3025 m1 = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, IWN_RBUF_SIZE);
3026 if (m1 == NULL) {
3027 DPRINTF(sc, IWN_DEBUG_ANY, "%s: no mbuf to restock ring\n",
3028 __func__);
3029 counter_u64_add(ic->ic_ierrors, 1);
3030 return;
3031 }
3032 bus_dmamap_unload(ring->data_dmat, data->map);
3033
3034 error = bus_dmamap_load(ring->data_dmat, data->map, mtod(m1, void *),
3035 IWN_RBUF_SIZE, iwn_dma_map_addr, &paddr, BUS_DMA_NOWAIT);
3036 if (error != 0 && error != EFBIG) {
3037 device_printf(sc->sc_dev,
3038 "%s: bus_dmamap_load failed, error %d\n", __func__, error);
3039 m_freem(m1);
3040
3041 /* Try to reload the old mbuf. */
3042 error = bus_dmamap_load(ring->data_dmat, data->map,
3043 mtod(data->m, void *), IWN_RBUF_SIZE, iwn_dma_map_addr,
3044 &paddr, BUS_DMA_NOWAIT);
3045 if (error != 0 && error != EFBIG) {
3046 panic("%s: could not load old RX mbuf", __func__);
3047 }
3048 bus_dmamap_sync(ring->data_dmat, data->map,
3049 BUS_DMASYNC_PREREAD);
3050 /* Physical address may have changed. */
3051 ring->desc[ring->cur] = htole32(paddr >> 8);
3052 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
3053 BUS_DMASYNC_PREWRITE);
3054 counter_u64_add(ic->ic_ierrors, 1);
3055 return;
3056 }
3057
3058 bus_dmamap_sync(ring->data_dmat, data->map,
3059 BUS_DMASYNC_PREREAD);
3060
3061 m = data->m;
3062 data->m = m1;
3063 /* Update RX descriptor. */
3064 ring->desc[ring->cur] = htole32(paddr >> 8);
3065 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
3066 BUS_DMASYNC_PREWRITE);
3067
3068 /* Finalize mbuf. */
3069 m->m_data = head;
3070 m->m_pkthdr.len = m->m_len = len;
3071
3072 /* Grab a reference to the source node. */
3073 wh = mtod(m, struct ieee80211_frame *);
3074 if (len >= sizeof(struct ieee80211_frame_min))
3075 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh);
3076 else
3077 ni = NULL;
3078 nf = (ni != NULL && ni->ni_vap->iv_state == IEEE80211_S_RUN &&
3079 (ic->ic_flags & IEEE80211_F_SCAN) == 0) ? sc->noise : -95;
3080
3081 rssi = ops->get_rssi(sc, stat);
3082
3083 if (ieee80211_radiotap_active(ic)) {
3084 struct iwn_rx_radiotap_header *tap = &sc->sc_rxtap;
3085
3086 tap->wr_flags = 0;
3087 if (stat->flags & htole16(IWN_STAT_FLAG_SHPREAMBLE))
3088 tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
3089 tap->wr_dbm_antsignal = (int8_t)rssi;
3090 tap->wr_dbm_antnoise = (int8_t)nf;
3091 tap->wr_tsft = stat->tstamp;
3092 switch (stat->rate) {
3093 /* CCK rates. */
3094 case 10: tap->wr_rate = 2; break;
3095 case 20: tap->wr_rate = 4; break;
3096 case 55: tap->wr_rate = 11; break;
3097 case 110: tap->wr_rate = 22; break;
3098 /* OFDM rates. */
3099 case 0xd: tap->wr_rate = 12; break;
3100 case 0xf: tap->wr_rate = 18; break;
3101 case 0x5: tap->wr_rate = 24; break;
3102 case 0x7: tap->wr_rate = 36; break;
3103 case 0x9: tap->wr_rate = 48; break;
3104 case 0xb: tap->wr_rate = 72; break;
3105 case 0x1: tap->wr_rate = 96; break;
3106 case 0x3: tap->wr_rate = 108; break;
3107 /* Unknown rate: should not happen. */
3108 default: tap->wr_rate = 0;
3109 }
3110 }
3111
3112 /*
3113 * If it's a beacon and we're waiting, then do the
3114 * wakeup. This should unblock raw_xmit/start.
3115 */
3116 if (sc->sc_beacon_wait) {
3117 uint8_t type, subtype;
3118 /* NB: Re-assign wh */
3119 wh = mtod(m, struct ieee80211_frame *);
3120 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
3121 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
3122 /*
3123 * This assumes at this point we've received our own
3124 * beacon.
3125 */
3126 DPRINTF(sc, IWN_DEBUG_TRACE,
3127 "%s: beacon_wait, type=%d, subtype=%d\n",
3128 __func__, type, subtype);
3129 if (type == IEEE80211_FC0_TYPE_MGT &&
3130 subtype == IEEE80211_FC0_SUBTYPE_BEACON) {
3131 DPRINTF(sc, IWN_DEBUG_TRACE | IWN_DEBUG_XMIT,
3132 "%s: waking things up\n", __func__);
3133 /* queue taskqueue to transmit! */
3134 taskqueue_enqueue(sc->sc_tq, &sc->sc_xmit_task);
3135 }
3136 }
3137
3138 IWN_UNLOCK(sc);
3139
3140 /* Send the frame to the 802.11 layer. */
3141 if (ni != NULL) {
3142 if (ni->ni_flags & IEEE80211_NODE_HT)
3143 m->m_flags |= M_AMPDU;
3144 (void)ieee80211_input(ni, m, rssi - nf, nf);
3145 /* Node is no longer needed. */
3146 ieee80211_free_node(ni);
3147 } else
3148 (void)ieee80211_input_all(ic, m, rssi - nf, nf);
3149
3150 IWN_LOCK(sc);
3151
3152 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
3153
3154 }
3155
3156 /* Process an incoming Compressed BlockAck. */
3157 static void
3158 iwn_rx_compressed_ba(struct iwn_softc *sc, struct iwn_rx_desc *desc,
3159 struct iwn_rx_data *data)
3160 {
3161 struct iwn_ops *ops = &sc->ops;
3162 struct iwn_node *wn;
3163 struct ieee80211_node *ni;
3164 struct iwn_compressed_ba *ba = (struct iwn_compressed_ba *)(desc + 1);
3165 struct iwn_tx_ring *txq;
3166 struct iwn_tx_data *txdata;
3167 struct ieee80211_tx_ampdu *tap;
3168 struct mbuf *m;
3169 uint64_t bitmap;
3170 uint16_t ssn;
3171 uint8_t tid;
3172 int ackfailcnt = 0, i, lastidx, qid, *res, shift;
3173 int tx_ok = 0, tx_err = 0;
3174
3175 DPRINTF(sc, IWN_DEBUG_TRACE | IWN_DEBUG_XMIT, "->%s begin\n", __func__);
3176
3177 bus_dmamap_sync(sc->rxq.data_dmat, data->map, BUS_DMASYNC_POSTREAD);
3178
3179 qid = le16toh(ba->qid);
3180 txq = &sc->txq[ba->qid];
3181 tap = sc->qid2tap[ba->qid];
3182 tid = tap->txa_tid;
3183 wn = (void *)tap->txa_ni;
3184
3185 res = NULL;
3186 ssn = 0;
3187 if (!IEEE80211_AMPDU_RUNNING(tap)) {
3188 res = tap->txa_private;
3189 ssn = tap->txa_start & 0xfff;
3190 }
3191
3192 for (lastidx = le16toh(ba->ssn) & 0xff; txq->read != lastidx;) {
3193 txdata = &txq->data[txq->read];
3194
3195 /* Unmap and free mbuf. */
3196 bus_dmamap_sync(txq->data_dmat, txdata->map,
3197 BUS_DMASYNC_POSTWRITE);
3198 bus_dmamap_unload(txq->data_dmat, txdata->map);
3199 m = txdata->m, txdata->m = NULL;
3200 ni = txdata->ni, txdata->ni = NULL;
3201
3202 KASSERT(ni != NULL, ("no node"));
3203 KASSERT(m != NULL, ("no mbuf"));
3204
3205 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: freeing m=%p\n", __func__, m);
3206 ieee80211_tx_complete(ni, m, 1);
3207
3208 txq->queued--;
3209 txq->read = (txq->read + 1) % IWN_TX_RING_COUNT;
3210 }
3211
3212 if (txq->queued == 0 && res != NULL) {
3213 iwn_nic_lock(sc);
3214 ops->ampdu_tx_stop(sc, qid, tid, ssn);
3215 iwn_nic_unlock(sc);
3216 sc->qid2tap[qid] = NULL;
3217 free(res, M_DEVBUF);
3218 return;
3219 }
3220
3221 if (wn->agg[tid].bitmap == 0)
3222 return;
3223
3224 shift = wn->agg[tid].startidx - ((le16toh(ba->seq) >> 4) & 0xff);
3225 if (shift < 0)
3226 shift += 0x100;
3227
3228 if (wn->agg[tid].nframes > (64 - shift))
3229 return;
3230
3231 /*
3232 * Walk the bitmap and calculate how many successful and failed
3233 * attempts are made.
3234 *
3235 * Yes, the rate control code doesn't know these are A-MPDU
3236 * subframes and that it's okay to fail some of these.
3237 */
3238 ni = tap->txa_ni;
3239 bitmap = (le64toh(ba->bitmap) >> shift) & wn->agg[tid].bitmap;
3240 for (i = 0; bitmap; i++) {
3241 if ((bitmap & 1) == 0) {
3242 tx_err ++;
3243 ieee80211_ratectl_tx_complete(ni->ni_vap, ni,
3244 IEEE80211_RATECTL_TX_FAILURE, &ackfailcnt, NULL);
3245 } else {
3246 tx_ok ++;
3247 ieee80211_ratectl_tx_complete(ni->ni_vap, ni,
3248 IEEE80211_RATECTL_TX_SUCCESS, &ackfailcnt, NULL);
3249 }
3250 bitmap >>= 1;
3251 }
3252
3253 DPRINTF(sc, IWN_DEBUG_TRACE | IWN_DEBUG_XMIT,
3254 "->%s: end; %d ok; %d err\n",__func__, tx_ok, tx_err);
3255
3256 }
3257
3258 /*
3259 * Process a CALIBRATION_RESULT notification sent by the initialization
3260 * firmware on response to a CMD_CALIB_CONFIG command (5000 only).
3261 */
3262 static void
3263 iwn5000_rx_calib_results(struct iwn_softc *sc, struct iwn_rx_desc *desc,
3264 struct iwn_rx_data *data)
3265 {
3266 struct iwn_phy_calib *calib = (struct iwn_phy_calib *)(desc + 1);
3267 int len, idx = -1;
3268
3269 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
3270
3271 /* Runtime firmware should not send such a notification. */
3272 if (sc->sc_flags & IWN_FLAG_CALIB_DONE){
3273 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s received after clib done\n",
3274 __func__);
3275 return;
3276 }
3277 len = (le32toh(desc->len) & 0x3fff) - 4;
3278 bus_dmamap_sync(sc->rxq.data_dmat, data->map, BUS_DMASYNC_POSTREAD);
3279
3280 switch (calib->code) {
3281 case IWN5000_PHY_CALIB_DC:
3282 if (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_DC)
3283 idx = 0;
3284 break;
3285 case IWN5000_PHY_CALIB_LO:
3286 if (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_LO)
3287 idx = 1;
3288 break;
3289 case IWN5000_PHY_CALIB_TX_IQ:
3290 if (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_TX_IQ)
3291 idx = 2;
3292 break;
3293 case IWN5000_PHY_CALIB_TX_IQ_PERIODIC:
3294 if (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_TX_IQ_PERIODIC)
3295 idx = 3;
3296 break;
3297 case IWN5000_PHY_CALIB_BASE_BAND:
3298 if (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_BASE_BAND)
3299 idx = 4;
3300 break;
3301 }
3302 if (idx == -1) /* Ignore other results. */
3303 return;
3304
3305 /* Save calibration result. */
3306 if (sc->calibcmd[idx].buf != NULL)
3307 free(sc->calibcmd[idx].buf, M_DEVBUF);
3308 sc->calibcmd[idx].buf = malloc(len, M_DEVBUF, M_NOWAIT);
3309 if (sc->calibcmd[idx].buf == NULL) {
3310 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
3311 "not enough memory for calibration result %d\n",
3312 calib->code);
3313 return;
3314 }
3315 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
3316 "saving calibration result idx=%d, code=%d len=%d\n", idx, calib->code, len);
3317 sc->calibcmd[idx].len = len;
3318 memcpy(sc->calibcmd[idx].buf, calib, len);
3319 }
3320
3321 static void
3322 iwn_stats_update(struct iwn_softc *sc, struct iwn_calib_state *calib,
3323 struct iwn_stats *stats, int len)
3324 {
3325 struct iwn_stats_bt *stats_bt;
3326 struct iwn_stats *lstats;
3327
3328 /*
3329 * First - check whether the length is the bluetooth or normal.
3330 *
3331 * If it's normal - just copy it and bump out.
3332 * Otherwise we have to convert things.
3333 */
3334
3335 if (len == sizeof(struct iwn_stats) + 4) {
3336 memcpy(&sc->last_stat, stats, sizeof(struct iwn_stats));
3337 sc->last_stat_valid = 1;
3338 return;
3339 }
3340
3341 /*
3342 * If it's not the bluetooth size - log, then just copy.
3343 */
3344 if (len != sizeof(struct iwn_stats_bt) + 4) {
3345 DPRINTF(sc, IWN_DEBUG_STATS,
3346 "%s: size of rx statistics (%d) not an expected size!\n",
3347 __func__,
3348 len);
3349 memcpy(&sc->last_stat, stats, sizeof(struct iwn_stats));
3350 sc->last_stat_valid = 1;
3351 return;
3352 }
3353
3354 /*
3355 * Ok. Time to copy.
3356 */
3357 stats_bt = (struct iwn_stats_bt *) stats;
3358 lstats = &sc->last_stat;
3359
3360 /* flags */
3361 lstats->flags = stats_bt->flags;
3362 /* rx_bt */
3363 memcpy(&lstats->rx.ofdm, &stats_bt->rx_bt.ofdm,
3364 sizeof(struct iwn_rx_phy_stats));
3365 memcpy(&lstats->rx.cck, &stats_bt->rx_bt.cck,
3366 sizeof(struct iwn_rx_phy_stats));
3367 memcpy(&lstats->rx.general, &stats_bt->rx_bt.general_bt.common,
3368 sizeof(struct iwn_rx_general_stats));
3369 memcpy(&lstats->rx.ht, &stats_bt->rx_bt.ht,
3370 sizeof(struct iwn_rx_ht_phy_stats));
3371 /* tx */
3372 memcpy(&lstats->tx, &stats_bt->tx,
3373 sizeof(struct iwn_tx_stats));
3374 /* general */
3375 memcpy(&lstats->general, &stats_bt->general,
3376 sizeof(struct iwn_general_stats));
3377
3378 /* XXX TODO: Squirrel away the extra bluetooth stats somewhere */
3379 sc->last_stat_valid = 1;
3380 }
3381
3382 /*
3383 * Process an RX_STATISTICS or BEACON_STATISTICS firmware notification.
3384 * The latter is sent by the firmware after each received beacon.
3385 */
3386 static void
3387 iwn_rx_statistics(struct iwn_softc *sc, struct iwn_rx_desc *desc,
3388 struct iwn_rx_data *data)
3389 {
3390 struct iwn_ops *ops = &sc->ops;
3391 struct ieee80211com *ic = &sc->sc_ic;
3392 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3393 struct iwn_calib_state *calib = &sc->calib;
3394 struct iwn_stats *stats = (struct iwn_stats *)(desc + 1);
3395 struct iwn_stats *lstats;
3396 int temp;
3397
3398 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
3399
3400 /* Ignore statistics received during a scan. */
3401 if (vap->iv_state != IEEE80211_S_RUN ||
3402 (ic->ic_flags & IEEE80211_F_SCAN)){
3403 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s received during calib\n",
3404 __func__);
3405 return;
3406 }
3407
3408 bus_dmamap_sync(sc->rxq.data_dmat, data->map, BUS_DMASYNC_POSTREAD);
3409
3410 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_STATS,
3411 "%s: received statistics, cmd %d, len %d\n",
3412 __func__, desc->type, le16toh(desc->len));
3413 sc->calib_cnt = 0; /* Reset TX power calibration timeout. */
3414
3415 /*
3416 * Collect/track general statistics for reporting.
3417 *
3418 * This takes care of ensuring that the bluetooth sized message
3419 * will be correctly converted to the legacy sized message.
3420 */
3421 iwn_stats_update(sc, calib, stats, le16toh(desc->len));
3422
3423 /*
3424 * And now, let's take a reference of it to use!
3425 */
3426 lstats = &sc->last_stat;
3427
3428 /* Test if temperature has changed. */
3429 if (lstats->general.temp != sc->rawtemp) {
3430 /* Convert "raw" temperature to degC. */
3431 sc->rawtemp = stats->general.temp;
3432 temp = ops->get_temperature(sc);
3433 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: temperature %d\n",
3434 __func__, temp);
3435
3436 /* Update TX power if need be (4965AGN only). */
3437 if (sc->hw_type == IWN_HW_REV_TYPE_4965)
3438 iwn4965_power_calibration(sc, temp);
3439 }
3440
3441 if (desc->type != IWN_BEACON_STATISTICS)
3442 return; /* Reply to a statistics request. */
3443
3444 sc->noise = iwn_get_noise(&lstats->rx.general);
3445 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: noise %d\n", __func__, sc->noise);
3446
3447 /* Test that RSSI and noise are present in stats report. */
3448 if (le32toh(lstats->rx.general.flags) != 1) {
3449 DPRINTF(sc, IWN_DEBUG_ANY, "%s\n",
3450 "received statistics without RSSI");
3451 return;
3452 }
3453
3454 if (calib->state == IWN_CALIB_STATE_ASSOC)
3455 iwn_collect_noise(sc, &lstats->rx.general);
3456 else if (calib->state == IWN_CALIB_STATE_RUN) {
3457 iwn_tune_sensitivity(sc, &lstats->rx);
3458 /*
3459 * XXX TODO: Only run the RX recovery if we're associated!
3460 */
3461 iwn_check_rx_recovery(sc, lstats);
3462 iwn_save_stats_counters(sc, lstats);
3463 }
3464
3465 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
3466 }
3467
3468 /*
3469 * Save the relevant statistic counters for the next calibration
3470 * pass.
3471 */
3472 static void
3473 iwn_save_stats_counters(struct iwn_softc *sc, const struct iwn_stats *rs)
3474 {
3475 struct iwn_calib_state *calib = &sc->calib;
3476
3477 /* Save counters values for next call. */
3478 calib->bad_plcp_cck = le32toh(rs->rx.cck.bad_plcp);
3479 calib->fa_cck = le32toh(rs->rx.cck.fa);
3480 calib->bad_plcp_ht = le32toh(rs->rx.ht.bad_plcp);
3481 calib->bad_plcp_ofdm = le32toh(rs->rx.ofdm.bad_plcp);
3482 calib->fa_ofdm = le32toh(rs->rx.ofdm.fa);
3483
3484 /* Last time we received these tick values */
3485 sc->last_calib_ticks = ticks;
3486 }
3487
3488 /*
3489 * Process a TX_DONE firmware notification. Unfortunately, the 4965AGN
3490 * and 5000 adapters have different incompatible TX status formats.
3491 */
3492 static void
3493 iwn4965_tx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc,
3494 struct iwn_rx_data *data)
3495 {
3496 struct iwn4965_tx_stat *stat = (struct iwn4965_tx_stat *)(desc + 1);
3497 struct iwn_tx_ring *ring;
3498 int qid;
3499
3500 qid = desc->qid & 0xf;
3501 ring = &sc->txq[qid];
3502
3503 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: "
3504 "qid %d idx %d RTS retries %d ACK retries %d nkill %d rate %x duration %d status %x\n",
3505 __func__, desc->qid, desc->idx,
3506 stat->rtsfailcnt,
3507 stat->ackfailcnt,
3508 stat->btkillcnt,
3509 stat->rate, le16toh(stat->duration),
3510 le32toh(stat->status));
3511
3512 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTREAD);
3513 if (qid >= sc->firstaggqueue) {
3514 iwn_ampdu_tx_done(sc, qid, desc->idx, stat->nframes,
3515 stat->ackfailcnt, &stat->status);
3516 } else {
3517 iwn_tx_done(sc, desc, stat->ackfailcnt,
3518 le32toh(stat->status) & 0xff);
3519 }
3520 }
3521
3522 static void
3523 iwn5000_tx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc,
3524 struct iwn_rx_data *data)
3525 {
3526 struct iwn5000_tx_stat *stat = (struct iwn5000_tx_stat *)(desc + 1);
3527 struct iwn_tx_ring *ring;
3528 int qid;
3529
3530 qid = desc->qid & 0xf;
3531 ring = &sc->txq[qid];
3532
3533 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: "
3534 "qid %d idx %d RTS retries %d ACK retries %d nkill %d rate %x duration %d status %x\n",
3535 __func__, desc->qid, desc->idx,
3536 stat->rtsfailcnt,
3537 stat->ackfailcnt,
3538 stat->btkillcnt,
3539 stat->rate, le16toh(stat->duration),
3540 le32toh(stat->status));
3541
3542 #ifdef notyet
3543 /* Reset TX scheduler slot. */
3544 iwn5000_reset_sched(sc, desc->qid & 0xf, desc->idx);
3545 #endif
3546
3547 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTREAD);
3548 if (qid >= sc->firstaggqueue) {
3549 iwn_ampdu_tx_done(sc, qid, desc->idx, stat->nframes,
3550 stat->ackfailcnt, &stat->status);
3551 } else {
3552 iwn_tx_done(sc, desc, stat->ackfailcnt,
3553 le16toh(stat->status) & 0xff);
3554 }
3555 }
3556
3557 /*
3558 * Adapter-independent backend for TX_DONE firmware notifications.
3559 */
3560 static void
3561 iwn_tx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc, int ackfailcnt,
3562 uint8_t status)
3563 {
3564 struct iwn_tx_ring *ring = &sc->txq[desc->qid & 0xf];
3565 struct iwn_tx_data *data = &ring->data[desc->idx];
3566 struct mbuf *m;
3567 struct ieee80211_node *ni;
3568 struct ieee80211vap *vap;
3569
3570 KASSERT(data->ni != NULL, ("no node"));
3571
3572 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
3573
3574 /* Unmap and free mbuf. */
3575 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTWRITE);
3576 bus_dmamap_unload(ring->data_dmat, data->map);
3577 m = data->m, data->m = NULL;
3578 ni = data->ni, data->ni = NULL;
3579 vap = ni->ni_vap;
3580
3581 /*
3582 * Update rate control statistics for the node.
3583 */
3584 if (status & IWN_TX_FAIL)
3585 ieee80211_ratectl_tx_complete(vap, ni,
3586 IEEE80211_RATECTL_TX_FAILURE, &ackfailcnt, NULL);
3587 else
3588 ieee80211_ratectl_tx_complete(vap, ni,
3589 IEEE80211_RATECTL_TX_SUCCESS, &ackfailcnt, NULL);
3590
3591 /*
3592 * Channels marked for "radar" require traffic to be received
3593 * to unlock before we can transmit. Until traffic is seen
3594 * any attempt to transmit is returned immediately with status
3595 * set to IWN_TX_FAIL_TX_LOCKED. Unfortunately this can easily
3596 * happen on first authenticate after scanning. To workaround
3597 * this we ignore a failure of this sort in AUTH state so the
3598 * 802.11 layer will fall back to using a timeout to wait for
3599 * the AUTH reply. This allows the firmware time to see
3600 * traffic so a subsequent retry of AUTH succeeds. It's
3601 * unclear why the firmware does not maintain state for
3602 * channels recently visited as this would allow immediate
3603 * use of the channel after a scan (where we see traffic).
3604 */
3605 if (status == IWN_TX_FAIL_TX_LOCKED &&
3606 ni->ni_vap->iv_state == IEEE80211_S_AUTH)
3607 ieee80211_tx_complete(ni, m, 0);
3608 else
3609 ieee80211_tx_complete(ni, m,
3610 (status & IWN_TX_FAIL) != 0);
3611
3612 sc->sc_tx_timer = 0;
3613 if (--ring->queued < IWN_TX_RING_LOMARK)
3614 sc->qfullmsk &= ~(1 << ring->qid);
3615
3616 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
3617 }
3618
3619 /*
3620 * Process a "command done" firmware notification. This is where we wakeup
3621 * processes waiting for a synchronous command completion.
3622 */
3623 static void
3624 iwn_cmd_done(struct iwn_softc *sc, struct iwn_rx_desc *desc)
3625 {
3626 struct iwn_tx_ring *ring;
3627 struct iwn_tx_data *data;
3628 int cmd_queue_num;
3629
3630 if (sc->sc_flags & IWN_FLAG_PAN_SUPPORT)
3631 cmd_queue_num = IWN_PAN_CMD_QUEUE;
3632 else
3633 cmd_queue_num = IWN_CMD_QUEUE_NUM;
3634
3635 if ((desc->qid & IWN_RX_DESC_QID_MSK) != cmd_queue_num)
3636 return; /* Not a command ack. */
3637
3638 ring = &sc->txq[cmd_queue_num];
3639 data = &ring->data[desc->idx];
3640
3641 /* If the command was mapped in an mbuf, free it. */
3642 if (data->m != NULL) {
3643 bus_dmamap_sync(ring->data_dmat, data->map,
3644 BUS_DMASYNC_POSTWRITE);
3645 bus_dmamap_unload(ring->data_dmat, data->map);
3646 m_freem(data->m);
3647 data->m = NULL;
3648 }
3649 wakeup(&ring->desc[desc->idx]);
3650 }
3651
3652 static void
3653 iwn_ampdu_tx_done(struct iwn_softc *sc, int qid, int idx, int nframes,
3654 int ackfailcnt, void *stat)
3655 {
3656 struct iwn_ops *ops = &sc->ops;
3657 struct iwn_tx_ring *ring = &sc->txq[qid];
3658 struct iwn_tx_data *data;
3659 struct mbuf *m;
3660 struct iwn_node *wn;
3661 struct ieee80211_node *ni;
3662 struct ieee80211_tx_ampdu *tap;
3663 uint64_t bitmap;
3664 uint32_t *status = stat;
3665 uint16_t *aggstatus = stat;
3666 uint16_t ssn;
3667 uint8_t tid;
3668 int bit, i, lastidx, *res, seqno, shift, start;
3669
3670 /* XXX TODO: status is le16 field! Grr */
3671
3672 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
3673 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: nframes=%d, status=0x%08x\n",
3674 __func__,
3675 nframes,
3676 *status);
3677
3678 tap = sc->qid2tap[qid];
3679 tid = tap->txa_tid;
3680 wn = (void *)tap->txa_ni;
3681 ni = tap->txa_ni;
3682
3683 /*
3684 * XXX TODO: ACK and RTS failures would be nice here!
3685 */
3686
3687 /*
3688 * A-MPDU single frame status - if we failed to transmit it
3689 * in A-MPDU, then it may be a permanent failure.
3690 *
3691 * XXX TODO: check what the Linux iwlwifi driver does here;
3692 * there's some permanent and temporary failures that may be
3693 * handled differently.
3694 */
3695 if (nframes == 1) {
3696 if ((*status & 0xff) != 1 && (*status & 0xff) != 2) {
3697 #ifdef NOT_YET
3698 printf("ieee80211_send_bar()\n");
3699 #endif
3700 /*
3701 * If we completely fail a transmit, make sure a
3702 * notification is pushed up to the rate control
3703 * layer.
3704 */
3705 ieee80211_ratectl_tx_complete(ni->ni_vap,
3706 ni,
3707 IEEE80211_RATECTL_TX_FAILURE,
3708 &ackfailcnt,
3709 NULL);
3710 } else {
3711 /*
3712 * If nframes=1, then we won't be getting a BA for
3713 * this frame. Ensure that we correctly update the
3714 * rate control code with how many retries were
3715 * needed to send it.
3716 */
3717 ieee80211_ratectl_tx_complete(ni->ni_vap,
3718 ni,
3719 IEEE80211_RATECTL_TX_SUCCESS,
3720 &ackfailcnt,
3721 NULL);
3722 }
3723 }
3724
3725 bitmap = 0;
3726 start = idx;
3727 for (i = 0; i < nframes; i++) {
3728 if (le16toh(aggstatus[i * 2]) & 0xc)
3729 continue;
3730
3731 idx = le16toh(aggstatus[2*i + 1]) & 0xff;
3732 bit = idx - start;
3733 shift = 0;
3734 if (bit >= 64) {
3735 shift = 0x100 - idx + start;
3736 bit = 0;
3737 start = idx;
3738 } else if (bit <= -64)
3739 bit = 0x100 - start + idx;
3740 else if (bit < 0) {
3741 shift = start - idx;
3742 start = idx;
3743 bit = 0;
3744 }
3745 bitmap = bitmap << shift;
3746 bitmap |= 1ULL << bit;
3747 }
3748 tap = sc->qid2tap[qid];
3749 tid = tap->txa_tid;
3750 wn = (void *)tap->txa_ni;
3751 wn->agg[tid].bitmap = bitmap;
3752 wn->agg[tid].startidx = start;
3753 wn->agg[tid].nframes = nframes;
3754
3755 res = NULL;
3756 ssn = 0;
3757 if (!IEEE80211_AMPDU_RUNNING(tap)) {
3758 res = tap->txa_private;
3759 ssn = tap->txa_start & 0xfff;
3760 }
3761
3762 /* This is going nframes DWORDS into the descriptor? */
3763 seqno = le32toh(*(status + nframes)) & 0xfff;
3764 for (lastidx = (seqno & 0xff); ring->read != lastidx;) {
3765 data = &ring->data[ring->read];
3766
3767 /* Unmap and free mbuf. */
3768 bus_dmamap_sync(ring->data_dmat, data->map,
3769 BUS_DMASYNC_POSTWRITE);
3770 bus_dmamap_unload(ring->data_dmat, data->map);
3771 m = data->m, data->m = NULL;
3772 ni = data->ni, data->ni = NULL;
3773
3774 KASSERT(ni != NULL, ("no node"));
3775 KASSERT(m != NULL, ("no mbuf"));
3776 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: freeing m=%p\n", __func__, m);
3777 ieee80211_tx_complete(ni, m, 1);
3778
3779 ring->queued--;
3780 ring->read = (ring->read + 1) % IWN_TX_RING_COUNT;
3781 }
3782
3783 if (ring->queued == 0 && res != NULL) {
3784 iwn_nic_lock(sc);
3785 ops->ampdu_tx_stop(sc, qid, tid, ssn);
3786 iwn_nic_unlock(sc);
3787 sc->qid2tap[qid] = NULL;
3788 free(res, M_DEVBUF);
3789 return;
3790 }
3791
3792 sc->sc_tx_timer = 0;
3793 if (ring->queued < IWN_TX_RING_LOMARK)
3794 sc->qfullmsk &= ~(1 << ring->qid);
3795
3796 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
3797 }
3798
3799 /*
3800 * Process an INT_FH_RX or INT_SW_RX interrupt.
3801 */
3802 static void
3803 iwn_notif_intr(struct iwn_softc *sc)
3804 {
3805 struct iwn_ops *ops = &sc->ops;
3806 struct ieee80211com *ic = &sc->sc_ic;
3807 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3808 uint16_t hw;
3809
3810 bus_dmamap_sync(sc->rxq.stat_dma.tag, sc->rxq.stat_dma.map,
3811 BUS_DMASYNC_POSTREAD);
3812
3813 hw = le16toh(sc->rxq.stat->closed_count) & 0xfff;
3814 while (sc->rxq.cur != hw) {
3815 struct iwn_rx_data *data = &sc->rxq.data[sc->rxq.cur];
3816 struct iwn_rx_desc *desc;
3817
3818 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
3819 BUS_DMASYNC_POSTREAD);
3820 desc = mtod(data->m, struct iwn_rx_desc *);
3821
3822 DPRINTF(sc, IWN_DEBUG_RECV,
3823 "%s: cur=%d; qid %x idx %d flags %x type %d(%s) len %d\n",
3824 __func__, sc->rxq.cur, desc->qid & 0xf, desc->idx, desc->flags,
3825 desc->type, iwn_intr_str(desc->type),
3826 le16toh(desc->len));
3827
3828 if (!(desc->qid & IWN_UNSOLICITED_RX_NOTIF)) /* Reply to a command. */
3829 iwn_cmd_done(sc, desc);
3830
3831 switch (desc->type) {
3832 case IWN_RX_PHY:
3833 iwn_rx_phy(sc, desc, data);
3834 break;
3835
3836 case IWN_RX_DONE: /* 4965AGN only. */
3837 case IWN_MPDU_RX_DONE:
3838 /* An 802.11 frame has been received. */
3839 iwn_rx_done(sc, desc, data);
3840 break;
3841
3842 case IWN_RX_COMPRESSED_BA:
3843 /* A Compressed BlockAck has been received. */
3844 iwn_rx_compressed_ba(sc, desc, data);
3845 break;
3846
3847 case IWN_TX_DONE:
3848 /* An 802.11 frame has been transmitted. */
3849 ops->tx_done(sc, desc, data);
3850 break;
3851
3852 case IWN_RX_STATISTICS:
3853 case IWN_BEACON_STATISTICS:
3854 iwn_rx_statistics(sc, desc, data);
3855 break;
3856
3857 case IWN_BEACON_MISSED:
3858 {
3859 struct iwn_beacon_missed *miss =
3860 (struct iwn_beacon_missed *)(desc + 1);
3861 int misses;
3862
3863 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
3864 BUS_DMASYNC_POSTREAD);
3865 misses = le32toh(miss->consecutive);
3866
3867 DPRINTF(sc, IWN_DEBUG_STATE,
3868 "%s: beacons missed %d/%d\n", __func__,
3869 misses, le32toh(miss->total));
3870 /*
3871 * If more than 5 consecutive beacons are missed,
3872 * reinitialize the sensitivity state machine.
3873 */
3874 if (vap->iv_state == IEEE80211_S_RUN &&
3875 (ic->ic_flags & IEEE80211_F_SCAN) == 0) {
3876 if (misses > 5)
3877 (void)iwn_init_sensitivity(sc);
3878 if (misses >= vap->iv_bmissthreshold) {
3879 IWN_UNLOCK(sc);
3880 ieee80211_beacon_miss(ic);
3881 IWN_LOCK(sc);
3882 }
3883 }
3884 break;
3885 }
3886 case IWN_UC_READY:
3887 {
3888 struct iwn_ucode_info *uc =
3889 (struct iwn_ucode_info *)(desc + 1);
3890
3891 /* The microcontroller is ready. */
3892 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
3893 BUS_DMASYNC_POSTREAD);
3894 DPRINTF(sc, IWN_DEBUG_RESET,
3895 "microcode alive notification version=%d.%d "
3896 "subtype=%x alive=%x\n", uc->major, uc->minor,
3897 uc->subtype, le32toh(uc->valid));
3898
3899 if (le32toh(uc->valid) != 1) {
3900 device_printf(sc->sc_dev,
3901 "microcontroller initialization failed");
3902 break;
3903 }
3904 if (uc->subtype == IWN_UCODE_INIT) {
3905 /* Save microcontroller report. */
3906 memcpy(&sc->ucode_info, uc, sizeof (*uc));
3907 }
3908 /* Save the address of the error log in SRAM. */
3909 sc->errptr = le32toh(uc->errptr);
3910 break;
3911 }
3912 case IWN_STATE_CHANGED:
3913 {
3914 /*
3915 * State change allows hardware switch change to be
3916 * noted. However, we handle this in iwn_intr as we
3917 * get both the enable/disble intr.
3918 */
3919 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
3920 BUS_DMASYNC_POSTREAD);
3921 #ifdef IWN_DEBUG
3922 uint32_t *status = (uint32_t *)(desc + 1);
3923 DPRINTF(sc, IWN_DEBUG_INTR | IWN_DEBUG_STATE,
3924 "state changed to %x\n",
3925 le32toh(*status));
3926 #endif
3927 break;
3928 }
3929 case IWN_START_SCAN:
3930 {
3931 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
3932 BUS_DMASYNC_POSTREAD);
3933 #ifdef IWN_DEBUG
3934 struct iwn_start_scan *scan =
3935 (struct iwn_start_scan *)(desc + 1);
3936 DPRINTF(sc, IWN_DEBUG_ANY,
3937 "%s: scanning channel %d status %x\n",
3938 __func__, scan->chan, le32toh(scan->status));
3939 #endif
3940 break;
3941 }
3942 case IWN_STOP_SCAN:
3943 {
3944 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
3945 BUS_DMASYNC_POSTREAD);
3946 #ifdef IWN_DEBUG
3947 struct iwn_stop_scan *scan =
3948 (struct iwn_stop_scan *)(desc + 1);
3949 DPRINTF(sc, IWN_DEBUG_STATE | IWN_DEBUG_SCAN,
3950 "scan finished nchan=%d status=%d chan=%d\n",
3951 scan->nchan, scan->status, scan->chan);
3952 #endif
3953 sc->sc_is_scanning = 0;
3954 callout_stop(&sc->scan_timeout);
3955 IWN_UNLOCK(sc);
3956 ieee80211_scan_next(vap);
3957 IWN_LOCK(sc);
3958 break;
3959 }
3960 case IWN5000_CALIBRATION_RESULT:
3961 iwn5000_rx_calib_results(sc, desc, data);
3962 break;
3963
3964 case IWN5000_CALIBRATION_DONE:
3965 sc->sc_flags |= IWN_FLAG_CALIB_DONE;
3966 wakeup(sc);
3967 break;
3968 }
3969
3970 sc->rxq.cur = (sc->rxq.cur + 1) % IWN_RX_RING_COUNT;
3971 }
3972
3973 /* Tell the firmware what we have processed. */
3974 hw = (hw == 0) ? IWN_RX_RING_COUNT - 1 : hw - 1;
3975 IWN_WRITE(sc, IWN_FH_RX_WPTR, hw & ~7);
3976 }
3977
3978 /*
3979 * Process an INT_WAKEUP interrupt raised when the microcontroller wakes up
3980 * from power-down sleep mode.
3981 */
3982 static void
3983 iwn_wakeup_intr(struct iwn_softc *sc)
3984 {
3985 int qid;
3986
3987 DPRINTF(sc, IWN_DEBUG_RESET, "%s: ucode wakeup from power-down sleep\n",
3988 __func__);
3989
3990 /* Wakeup RX and TX rings. */
3991 IWN_WRITE(sc, IWN_FH_RX_WPTR, sc->rxq.cur & ~7);
3992 for (qid = 0; qid < sc->ntxqs; qid++) {
3993 struct iwn_tx_ring *ring = &sc->txq[qid];
3994 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | ring->cur);
3995 }
3996 }
3997
3998 static void
3999 iwn_rftoggle_intr(struct iwn_softc *sc)
4000 {
4001 struct ieee80211com *ic = &sc->sc_ic;
4002 uint32_t tmp = IWN_READ(sc, IWN_GP_CNTRL);
4003
4004 IWN_LOCK_ASSERT(sc);
4005
4006 device_printf(sc->sc_dev, "RF switch: radio %s\n",
4007 (tmp & IWN_GP_CNTRL_RFKILL) ? "enabled" : "disabled");
4008 if (tmp & IWN_GP_CNTRL_RFKILL)
4009 ieee80211_runtask(ic, &sc->sc_radioon_task);
4010 else
4011 ieee80211_runtask(ic, &sc->sc_radiooff_task);
4012 }
4013
4014 /*
4015 * Dump the error log of the firmware when a firmware panic occurs. Although
4016 * we can't debug the firmware because it is neither open source nor free, it
4017 * can help us to identify certain classes of problems.
4018 */
4019 static void
4020 iwn_fatal_intr(struct iwn_softc *sc)
4021 {
4022 struct iwn_fw_dump dump;
4023 int i;
4024
4025 IWN_LOCK_ASSERT(sc);
4026
4027 /* Force a complete recalibration on next init. */
4028 sc->sc_flags &= ~IWN_FLAG_CALIB_DONE;
4029
4030 /* Check that the error log address is valid. */
4031 if (sc->errptr < IWN_FW_DATA_BASE ||
4032 sc->errptr + sizeof (dump) >
4033 IWN_FW_DATA_BASE + sc->fw_data_maxsz) {
4034 printf("%s: bad firmware error log address 0x%08x\n", __func__,
4035 sc->errptr);
4036 return;
4037 }
4038 if (iwn_nic_lock(sc) != 0) {
4039 printf("%s: could not read firmware error log\n", __func__);
4040 return;
4041 }
4042 /* Read firmware error log from SRAM. */
4043 iwn_mem_read_region_4(sc, sc->errptr, (uint32_t *)&dump,
4044 sizeof (dump) / sizeof (uint32_t));
4045 iwn_nic_unlock(sc);
4046
4047 if (dump.valid == 0) {
4048 printf("%s: firmware error log is empty\n", __func__);
4049 return;
4050 }
4051 printf("firmware error log:\n");
4052 printf(" error type = \"%s\" (0x%08X)\n",
4053 (dump.id < nitems(iwn_fw_errmsg)) ?
4054 iwn_fw_errmsg[dump.id] : "UNKNOWN",
4055 dump.id);
4056 printf(" program counter = 0x%08X\n", dump.pc);
4057 printf(" source line = 0x%08X\n", dump.src_line);
4058 printf(" error data = 0x%08X%08X\n",
4059 dump.error_data[0], dump.error_data[1]);
4060 printf(" branch link = 0x%08X%08X\n",
4061 dump.branch_link[0], dump.branch_link[1]);
4062 printf(" interrupt link = 0x%08X%08X\n",
4063 dump.interrupt_link[0], dump.interrupt_link[1]);
4064 printf(" time = %u\n", dump.time[0]);
4065
4066 /* Dump driver status (TX and RX rings) while we're here. */
4067 printf("driver status:\n");
4068 for (i = 0; i < sc->ntxqs; i++) {
4069 struct iwn_tx_ring *ring = &sc->txq[i];
4070 printf(" tx ring %2d: qid=%-2d cur=%-3d queued=%-3d\n",
4071 i, ring->qid, ring->cur, ring->queued);
4072 }
4073 printf(" rx ring: cur=%d\n", sc->rxq.cur);
4074 }
4075
4076 static void
4077 iwn_intr(void *arg)
4078 {
4079 struct iwn_softc *sc = arg;
4080 uint32_t r1, r2, tmp;
4081
4082 IWN_LOCK(sc);
4083
4084 /* Disable interrupts. */
4085 IWN_WRITE(sc, IWN_INT_MASK, 0);
4086
4087 /* Read interrupts from ICT (fast) or from registers (slow). */
4088 if (sc->sc_flags & IWN_FLAG_USE_ICT) {
4089 bus_dmamap_sync(sc->ict_dma.tag, sc->ict_dma.map,
4090 BUS_DMASYNC_POSTREAD);
4091 tmp = 0;
4092 while (sc->ict[sc->ict_cur] != 0) {
4093 tmp |= sc->ict[sc->ict_cur];
4094 sc->ict[sc->ict_cur] = 0; /* Acknowledge. */
4095 sc->ict_cur = (sc->ict_cur + 1) % IWN_ICT_COUNT;
4096 }
4097 tmp = le32toh(tmp);
4098 if (tmp == 0xffffffff) /* Shouldn't happen. */
4099 tmp = 0;
4100 else if (tmp & 0xc0000) /* Workaround a HW bug. */
4101 tmp |= 0x8000;
4102 r1 = (tmp & 0xff00) << 16 | (tmp & 0xff);
4103 r2 = 0; /* Unused. */
4104 } else {
4105 r1 = IWN_READ(sc, IWN_INT);
4106 if (r1 == 0xffffffff || (r1 & 0xfffffff0) == 0xa5a5a5a0) {
4107 IWN_UNLOCK(sc);
4108 return; /* Hardware gone! */
4109 }
4110 r2 = IWN_READ(sc, IWN_FH_INT);
4111 }
4112
4113 DPRINTF(sc, IWN_DEBUG_INTR, "interrupt reg1=0x%08x reg2=0x%08x\n"
4114 , r1, r2);
4115
4116 if (r1 == 0 && r2 == 0)
4117 goto done; /* Interrupt not for us. */
4118
4119 /* Acknowledge interrupts. */
4120 IWN_WRITE(sc, IWN_INT, r1);
4121 if (!(sc->sc_flags & IWN_FLAG_USE_ICT))
4122 IWN_WRITE(sc, IWN_FH_INT, r2);
4123
4124 if (r1 & IWN_INT_RF_TOGGLED) {
4125 iwn_rftoggle_intr(sc);
4126 goto done;
4127 }
4128 if (r1 & IWN_INT_CT_REACHED) {
4129 device_printf(sc->sc_dev, "%s: critical temperature reached!\n",
4130 __func__);
4131 }
4132 if (r1 & (IWN_INT_SW_ERR | IWN_INT_HW_ERR)) {
4133 device_printf(sc->sc_dev, "%s: fatal firmware error\n",
4134 __func__);
4135 #ifdef IWN_DEBUG
4136 iwn_debug_register(sc);
4137 #endif
4138 /* Dump firmware error log and stop. */
4139 iwn_fatal_intr(sc);
4140
4141 taskqueue_enqueue(sc->sc_tq, &sc->sc_panic_task);
4142 goto done;
4143 }
4144 if ((r1 & (IWN_INT_FH_RX | IWN_INT_SW_RX | IWN_INT_RX_PERIODIC)) ||
4145 (r2 & IWN_FH_INT_RX)) {
4146 if (sc->sc_flags & IWN_FLAG_USE_ICT) {
4147 if (r1 & (IWN_INT_FH_RX | IWN_INT_SW_RX))
4148 IWN_WRITE(sc, IWN_FH_INT, IWN_FH_INT_RX);
4149 IWN_WRITE_1(sc, IWN_INT_PERIODIC,
4150 IWN_INT_PERIODIC_DIS);
4151 iwn_notif_intr(sc);
4152 if (r1 & (IWN_INT_FH_RX | IWN_INT_SW_RX)) {
4153 IWN_WRITE_1(sc, IWN_INT_PERIODIC,
4154 IWN_INT_PERIODIC_ENA);
4155 }
4156 } else
4157 iwn_notif_intr(sc);
4158 }
4159
4160 if ((r1 & IWN_INT_FH_TX) || (r2 & IWN_FH_INT_TX)) {
4161 if (sc->sc_flags & IWN_FLAG_USE_ICT)
4162 IWN_WRITE(sc, IWN_FH_INT, IWN_FH_INT_TX);
4163 wakeup(sc); /* FH DMA transfer completed. */
4164 }
4165
4166 if (r1 & IWN_INT_ALIVE)
4167 wakeup(sc); /* Firmware is alive. */
4168
4169 if (r1 & IWN_INT_WAKEUP)
4170 iwn_wakeup_intr(sc);
4171
4172 done:
4173 /* Re-enable interrupts. */
4174 if (sc->sc_flags & IWN_FLAG_RUNNING)
4175 IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask);
4176
4177 IWN_UNLOCK(sc);
4178 }
4179
4180 /*
4181 * Update TX scheduler ring when transmitting an 802.11 frame (4965AGN and
4182 * 5000 adapters use a slightly different format).
4183 */
4184 static void
4185 iwn4965_update_sched(struct iwn_softc *sc, int qid, int idx, uint8_t id,
4186 uint16_t len)
4187 {
4188 uint16_t *w = &sc->sched[qid * IWN4965_SCHED_COUNT + idx];
4189
4190 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
4191
4192 *w = htole16(len + 8);
4193 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map,
4194 BUS_DMASYNC_PREWRITE);
4195 if (idx < IWN_SCHED_WINSZ) {
4196 *(w + IWN_TX_RING_COUNT) = *w;
4197 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map,
4198 BUS_DMASYNC_PREWRITE);
4199 }
4200 }
4201
4202 static void
4203 iwn5000_update_sched(struct iwn_softc *sc, int qid, int idx, uint8_t id,
4204 uint16_t len)
4205 {
4206 uint16_t *w = &sc->sched[qid * IWN5000_SCHED_COUNT + idx];
4207
4208 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
4209
4210 *w = htole16(id << 12 | (len + 8));
4211 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map,
4212 BUS_DMASYNC_PREWRITE);
4213 if (idx < IWN_SCHED_WINSZ) {
4214 *(w + IWN_TX_RING_COUNT) = *w;
4215 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map,
4216 BUS_DMASYNC_PREWRITE);
4217 }
4218 }
4219
4220 #ifdef notyet
4221 static void
4222 iwn5000_reset_sched(struct iwn_softc *sc, int qid, int idx)
4223 {
4224 uint16_t *w = &sc->sched[qid * IWN5000_SCHED_COUNT + idx];
4225
4226 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
4227
4228 *w = (*w & htole16(0xf000)) | htole16(1);
4229 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map,
4230 BUS_DMASYNC_PREWRITE);
4231 if (idx < IWN_SCHED_WINSZ) {
4232 *(w + IWN_TX_RING_COUNT) = *w;
4233 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map,
4234 BUS_DMASYNC_PREWRITE);
4235 }
4236 }
4237 #endif
4238
4239 /*
4240 * Check whether OFDM 11g protection will be enabled for the given rate.
4241 *
4242 * The original driver code only enabled protection for OFDM rates.
4243 * It didn't check to see whether it was operating in 11a or 11bg mode.
4244 */
4245 static int
4246 iwn_check_rate_needs_protection(struct iwn_softc *sc,
4247 struct ieee80211vap *vap, uint8_t rate)
4248 {
4249 struct ieee80211com *ic = vap->iv_ic;
4250
4251 /*
4252 * Not in 2GHz mode? Then there's no need to enable OFDM
4253 * 11bg protection.
4254 */
4255 if (! IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) {
4256 return (0);
4257 }
4258
4259 /*
4260 * 11bg protection not enabled? Then don't use it.
4261 */
4262 if ((ic->ic_flags & IEEE80211_F_USEPROT) == 0)
4263 return (0);
4264
4265 /*
4266 * If it's an 11n rate - no protection.
4267 * We'll do it via a specific 11n check.
4268 */
4269 if (rate & IEEE80211_RATE_MCS) {
4270 return (0);
4271 }
4272
4273 /*
4274 * Do a rate table lookup. If the PHY is CCK,
4275 * don't do protection.
4276 */
4277 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_CCK)
4278 return (0);
4279
4280 /*
4281 * Yup, enable protection.
4282 */
4283 return (1);
4284 }
4285
4286 /*
4287 * return a value between 0 and IWN_MAX_TX_RETRIES-1 as an index into
4288 * the link quality table that reflects this particular entry.
4289 */
4290 static int
4291 iwn_tx_rate_to_linkq_offset(struct iwn_softc *sc, struct ieee80211_node *ni,
4292 uint8_t rate)
4293 {
4294 struct ieee80211_rateset *rs;
4295 int is_11n;
4296 int nr;
4297 int i;
4298 uint8_t cmp_rate;
4299
4300 /*
4301 * Figure out if we're using 11n or not here.
4302 */
4303 if (IEEE80211_IS_CHAN_HT(ni->ni_chan) && ni->ni_htrates.rs_nrates > 0)
4304 is_11n = 1;
4305 else
4306 is_11n = 0;
4307
4308 /*
4309 * Use the correct rate table.
4310 */
4311 if (is_11n) {
4312 rs = (struct ieee80211_rateset *) &ni->ni_htrates;
4313 nr = ni->ni_htrates.rs_nrates;
4314 } else {
4315 rs = &ni->ni_rates;
4316 nr = rs->rs_nrates;
4317 }
4318
4319 /*
4320 * Find the relevant link quality entry in the table.
4321 */
4322 for (i = 0; i < nr && i < IWN_MAX_TX_RETRIES - 1 ; i++) {
4323 /*
4324 * The link quality table index starts at 0 == highest
4325 * rate, so we walk the rate table backwards.
4326 */
4327 cmp_rate = rs->rs_rates[(nr - 1) - i];
4328 if (rate & IEEE80211_RATE_MCS)
4329 cmp_rate |= IEEE80211_RATE_MCS;
4330
4331 #if 0
4332 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: idx %d: nr=%d, rate=0x%02x, rateentry=0x%02x\n",
4333 __func__,
4334 i,
4335 nr,
4336 rate,
4337 cmp_rate);
4338 #endif
4339
4340 if (cmp_rate == rate)
4341 return (i);
4342 }
4343
4344 /* Failed? Start at the end */
4345 return (IWN_MAX_TX_RETRIES - 1);
4346 }
4347
4348 static int
4349 iwn_tx_data(struct iwn_softc *sc, struct mbuf *m, struct ieee80211_node *ni)
4350 {
4351 struct iwn_ops *ops = &sc->ops;
4352 const struct ieee80211_txparam *tp;
4353 struct ieee80211vap *vap = ni->ni_vap;
4354 struct ieee80211com *ic = ni->ni_ic;
4355 struct iwn_node *wn = (void *)ni;
4356 struct iwn_tx_ring *ring;
4357 struct iwn_tx_desc *desc;
4358 struct iwn_tx_data *data;
4359 struct iwn_tx_cmd *cmd;
4360 struct iwn_cmd_data *tx;
4361 struct ieee80211_frame *wh;
4362 struct ieee80211_key *k = NULL;
4363 struct mbuf *m1;
4364 uint32_t flags;
4365 uint16_t qos;
4366 u_int hdrlen;
4367 bus_dma_segment_t *seg, segs[IWN_MAX_SCATTER];
4368 uint8_t tid, type;
4369 int ac, i, totlen, error, pad, nsegs = 0, rate;
4370
4371 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
4372
4373 IWN_LOCK_ASSERT(sc);
4374
4375 wh = mtod(m, struct ieee80211_frame *);
4376 hdrlen = ieee80211_anyhdrsize(wh);
4377 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
4378
4379 /* Select EDCA Access Category and TX ring for this frame. */
4380 if (IEEE80211_QOS_HAS_SEQ(wh)) {
4381 qos = ((const struct ieee80211_qosframe *)wh)->i_qos[0];
4382 tid = qos & IEEE80211_QOS_TID;
4383 } else {
4384 qos = 0;
4385 tid = 0;
4386 }
4387 ac = M_WME_GETAC(m);
4388 if (m->m_flags & M_AMPDU_MPDU) {
4389 uint16_t seqno;
4390 struct ieee80211_tx_ampdu *tap = &ni->ni_tx_ampdu[ac];
4391
4392 if (!IEEE80211_AMPDU_RUNNING(tap)) {
4393 return EINVAL;
4394 }
4395
4396 /*
4397 * Queue this frame to the hardware ring that we've
4398 * negotiated AMPDU TX on.
4399 *
4400 * Note that the sequence number must match the TX slot
4401 * being used!
4402 */
4403 ac = *(int *)tap->txa_private;
4404 seqno = ni->ni_txseqs[tid];
4405 *(uint16_t *)wh->i_seq =
4406 htole16(seqno << IEEE80211_SEQ_SEQ_SHIFT);
4407 ring = &sc->txq[ac];
4408 if ((seqno % 256) != ring->cur) {
4409 device_printf(sc->sc_dev,
4410 "%s: m=%p: seqno (%d) (%d) != ring index (%d) !\n",
4411 __func__,
4412 m,
4413 seqno,
4414 seqno % 256,
4415 ring->cur);
4416 }
4417 ni->ni_txseqs[tid]++;
4418 }
4419 ring = &sc->txq[ac];
4420 desc = &ring->desc[ring->cur];
4421 data = &ring->data[ring->cur];
4422
4423 /* Choose a TX rate index. */
4424 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)];
4425 if (type == IEEE80211_FC0_TYPE_MGT)
4426 rate = tp->mgmtrate;
4427 else if (IEEE80211_IS_MULTICAST(wh->i_addr1))
4428 rate = tp->mcastrate;
4429 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE)
4430 rate = tp->ucastrate;
4431 else if (m->m_flags & M_EAPOL)
4432 rate = tp->mgmtrate;
4433 else {
4434 /* XXX pass pktlen */
4435 (void) ieee80211_ratectl_rate(ni, NULL, 0);
4436 rate = ni->ni_txrate;
4437 }
4438
4439 /* Encrypt the frame if need be. */
4440 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
4441 /* Retrieve key for TX. */
4442 k = ieee80211_crypto_encap(ni, m);
4443 if (k == NULL) {
4444 return ENOBUFS;
4445 }
4446 /* 802.11 header may have moved. */
4447 wh = mtod(m, struct ieee80211_frame *);
4448 }
4449 totlen = m->m_pkthdr.len;
4450
4451 if (ieee80211_radiotap_active_vap(vap)) {
4452 struct iwn_tx_radiotap_header *tap = &sc->sc_txtap;
4453
4454 tap->wt_flags = 0;
4455 tap->wt_rate = rate;
4456 if (k != NULL)
4457 tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP;
4458
4459 ieee80211_radiotap_tx(vap, m);
4460 }
4461
4462 /* Prepare TX firmware command. */
4463 cmd = &ring->cmd[ring->cur];
4464 cmd->code = IWN_CMD_TX_DATA;
4465 cmd->flags = 0;
4466 cmd->qid = ring->qid;
4467 cmd->idx = ring->cur;
4468
4469 tx = (struct iwn_cmd_data *)cmd->data;
4470 /* NB: No need to clear tx, all fields are reinitialized here. */
4471 tx->scratch = 0; /* clear "scratch" area */
4472
4473 flags = 0;
4474 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
4475 /* Unicast frame, check if an ACK is expected. */
4476 if (!qos || (qos & IEEE80211_QOS_ACKPOLICY) !=
4477 IEEE80211_QOS_ACKPOLICY_NOACK)
4478 flags |= IWN_TX_NEED_ACK;
4479 }
4480 if ((wh->i_fc[0] &
4481 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) ==
4482 (IEEE80211_FC0_TYPE_CTL | IEEE80211_FC0_SUBTYPE_BAR))
4483 flags |= IWN_TX_IMM_BA; /* Cannot happen yet. */
4484
4485 if (wh->i_fc[1] & IEEE80211_FC1_MORE_FRAG)
4486 flags |= IWN_TX_MORE_FRAG; /* Cannot happen yet. */
4487
4488 /* Check if frame must be protected using RTS/CTS or CTS-to-self. */
4489 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
4490 /* NB: Group frames are sent using CCK in 802.11b/g. */
4491 if (totlen + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) {
4492 flags |= IWN_TX_NEED_RTS;
4493 } else if (iwn_check_rate_needs_protection(sc, vap, rate)) {
4494 if (ic->ic_protmode == IEEE80211_PROT_CTSONLY)
4495 flags |= IWN_TX_NEED_CTS;
4496 else if (ic->ic_protmode == IEEE80211_PROT_RTSCTS)
4497 flags |= IWN_TX_NEED_RTS;
4498 } else if ((rate & IEEE80211_RATE_MCS) &&
4499 (ic->ic_htprotmode == IEEE80211_PROT_RTSCTS)) {
4500 flags |= IWN_TX_NEED_RTS;
4501 }
4502
4503 /* XXX HT protection? */
4504
4505 if (flags & (IWN_TX_NEED_RTS | IWN_TX_NEED_CTS)) {
4506 if (sc->hw_type != IWN_HW_REV_TYPE_4965) {
4507 /* 5000 autoselects RTS/CTS or CTS-to-self. */
4508 flags &= ~(IWN_TX_NEED_RTS | IWN_TX_NEED_CTS);
4509 flags |= IWN_TX_NEED_PROTECTION;
4510 } else
4511 flags |= IWN_TX_FULL_TXOP;
4512 }
4513 }
4514
4515 if (IEEE80211_IS_MULTICAST(wh->i_addr1) ||
4516 type != IEEE80211_FC0_TYPE_DATA)
4517 tx->id = sc->broadcast_id;
4518 else
4519 tx->id = wn->id;
4520
4521 if (type == IEEE80211_FC0_TYPE_MGT) {
4522 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
4523
4524 /* Tell HW to set timestamp in probe responses. */
4525 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP)
4526 flags |= IWN_TX_INSERT_TSTAMP;
4527 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ ||
4528 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ)
4529 tx->timeout = htole16(3);
4530 else
4531 tx->timeout = htole16(2);
4532 } else
4533 tx->timeout = htole16(0);
4534
4535 if (hdrlen & 3) {
4536 /* First segment length must be a multiple of 4. */
4537 flags |= IWN_TX_NEED_PADDING;
4538 pad = 4 - (hdrlen & 3);
4539 } else
4540 pad = 0;
4541
4542 tx->len = htole16(totlen);
4543 tx->tid = tid;
4544 tx->rts_ntries = 60;
4545 tx->data_ntries = 15;
4546 tx->lifetime = htole32(IWN_LIFETIME_INFINITE);
4547 tx->rate = iwn_rate_to_plcp(sc, ni, rate);
4548 if (tx->id == sc->broadcast_id) {
4549 /* Group or management frame. */
4550 tx->linkq = 0;
4551 } else {
4552 tx->linkq = iwn_tx_rate_to_linkq_offset(sc, ni, rate);
4553 flags |= IWN_TX_LINKQ; /* enable MRR */
4554 }
4555
4556 /* Set physical address of "scratch area". */
4557 tx->loaddr = htole32(IWN_LOADDR(data->scratch_paddr));
4558 tx->hiaddr = IWN_HIADDR(data->scratch_paddr);
4559
4560 /* Copy 802.11 header in TX command. */
4561 memcpy((uint8_t *)(tx + 1), wh, hdrlen);
4562
4563 /* Trim 802.11 header. */
4564 m_adj(m, hdrlen);
4565 tx->security = 0;
4566 tx->flags = htole32(flags);
4567
4568 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, m, segs,
4569 &nsegs, BUS_DMA_NOWAIT);
4570 if (error != 0) {
4571 if (error != EFBIG) {
4572 device_printf(sc->sc_dev,
4573 "%s: can't map mbuf (error %d)\n", __func__, error);
4574 return error;
4575 }
4576 /* Too many DMA segments, linearize mbuf. */
4577 m1 = m_collapse(m, M_NOWAIT, IWN_MAX_SCATTER - 1);
4578 if (m1 == NULL) {
4579 device_printf(sc->sc_dev,
4580 "%s: could not defrag mbuf\n", __func__);
4581 return ENOBUFS;
4582 }
4583 m = m1;
4584
4585 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, m,
4586 segs, &nsegs, BUS_DMA_NOWAIT);
4587 if (error != 0) {
4588 device_printf(sc->sc_dev,
4589 "%s: can't map mbuf (error %d)\n", __func__, error);
4590 return error;
4591 }
4592 }
4593
4594 data->m = m;
4595 data->ni = ni;
4596
4597 DPRINTF(sc, IWN_DEBUG_XMIT,
4598 "%s: qid %d idx %d len %d nsegs %d flags 0x%08x rate 0x%04x plcp 0x%08x\n",
4599 __func__,
4600 ring->qid,
4601 ring->cur,
4602 m->m_pkthdr.len,
4603 nsegs,
4604 flags,
4605 rate,
4606 tx->rate);
4607
4608 /* Fill TX descriptor. */
4609 desc->nsegs = 1;
4610 if (m->m_len != 0)
4611 desc->nsegs += nsegs;
4612 /* First DMA segment is used by the TX command. */
4613 desc->segs[0].addr = htole32(IWN_LOADDR(data->cmd_paddr));
4614 desc->segs[0].len = htole16(IWN_HIADDR(data->cmd_paddr) |
4615 (4 + sizeof (*tx) + hdrlen + pad) << 4);
4616 /* Other DMA segments are for data payload. */
4617 seg = &segs[0];
4618 for (i = 1; i <= nsegs; i++) {
4619 desc->segs[i].addr = htole32(IWN_LOADDR(seg->ds_addr));
4620 desc->segs[i].len = htole16(IWN_HIADDR(seg->ds_addr) |
4621 seg->ds_len << 4);
4622 seg++;
4623 }
4624
4625 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
4626 bus_dmamap_sync(ring->cmd_dma.tag, ring->cmd_dma.map,
4627 BUS_DMASYNC_PREWRITE);
4628 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
4629 BUS_DMASYNC_PREWRITE);
4630
4631 /* Update TX scheduler. */
4632 if (ring->qid >= sc->firstaggqueue)
4633 ops->update_sched(sc, ring->qid, ring->cur, tx->id, totlen);
4634
4635 /* Kick TX ring. */
4636 ring->cur = (ring->cur + 1) % IWN_TX_RING_COUNT;
4637 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur);
4638
4639 /* Mark TX ring as full if we reach a certain threshold. */
4640 if (++ring->queued > IWN_TX_RING_HIMARK)
4641 sc->qfullmsk |= 1 << ring->qid;
4642
4643 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
4644
4645 return 0;
4646 }
4647
4648 static int
4649 iwn_tx_data_raw(struct iwn_softc *sc, struct mbuf *m,
4650 struct ieee80211_node *ni, const struct ieee80211_bpf_params *params)
4651 {
4652 struct iwn_ops *ops = &sc->ops;
4653 struct ieee80211vap *vap = ni->ni_vap;
4654 struct iwn_tx_cmd *cmd;
4655 struct iwn_cmd_data *tx;
4656 struct ieee80211_frame *wh;
4657 struct iwn_tx_ring *ring;
4658 struct iwn_tx_desc *desc;
4659 struct iwn_tx_data *data;
4660 struct mbuf *m1;
4661 bus_dma_segment_t *seg, segs[IWN_MAX_SCATTER];
4662 uint32_t flags;
4663 u_int hdrlen;
4664 int ac, totlen, error, pad, nsegs = 0, i, rate;
4665 uint8_t type;
4666
4667 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
4668
4669 IWN_LOCK_ASSERT(sc);
4670
4671 wh = mtod(m, struct ieee80211_frame *);
4672 hdrlen = ieee80211_anyhdrsize(wh);
4673 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
4674
4675 ac = params->ibp_pri & 3;
4676
4677 ring = &sc->txq[ac];
4678 desc = &ring->desc[ring->cur];
4679 data = &ring->data[ring->cur];
4680
4681 /* Choose a TX rate. */
4682 rate = params->ibp_rate0;
4683 totlen = m->m_pkthdr.len;
4684
4685 /* Prepare TX firmware command. */
4686 cmd = &ring->cmd[ring->cur];
4687 cmd->code = IWN_CMD_TX_DATA;
4688 cmd->flags = 0;
4689 cmd->qid = ring->qid;
4690 cmd->idx = ring->cur;
4691
4692 tx = (struct iwn_cmd_data *)cmd->data;
4693 /* NB: No need to clear tx, all fields are reinitialized here. */
4694 tx->scratch = 0; /* clear "scratch" area */
4695
4696 flags = 0;
4697 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
4698 flags |= IWN_TX_NEED_ACK;
4699 if (params->ibp_flags & IEEE80211_BPF_RTS) {
4700 if (sc->hw_type != IWN_HW_REV_TYPE_4965) {
4701 /* 5000 autoselects RTS/CTS or CTS-to-self. */
4702 flags &= ~IWN_TX_NEED_RTS;
4703 flags |= IWN_TX_NEED_PROTECTION;
4704 } else
4705 flags |= IWN_TX_NEED_RTS | IWN_TX_FULL_TXOP;
4706 }
4707 if (params->ibp_flags & IEEE80211_BPF_CTS) {
4708 if (sc->hw_type != IWN_HW_REV_TYPE_4965) {
4709 /* 5000 autoselects RTS/CTS or CTS-to-self. */
4710 flags &= ~IWN_TX_NEED_CTS;
4711 flags |= IWN_TX_NEED_PROTECTION;
4712 } else
4713 flags |= IWN_TX_NEED_CTS | IWN_TX_FULL_TXOP;
4714 }
4715 if (type == IEEE80211_FC0_TYPE_MGT) {
4716 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
4717
4718 /* Tell HW to set timestamp in probe responses. */
4719 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP)
4720 flags |= IWN_TX_INSERT_TSTAMP;
4721
4722 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ ||
4723 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ)
4724 tx->timeout = htole16(3);
4725 else
4726 tx->timeout = htole16(2);
4727 } else
4728 tx->timeout = htole16(0);
4729
4730 if (hdrlen & 3) {
4731 /* First segment length must be a multiple of 4. */
4732 flags |= IWN_TX_NEED_PADDING;
4733 pad = 4 - (hdrlen & 3);
4734 } else
4735 pad = 0;
4736
4737 if (ieee80211_radiotap_active_vap(vap)) {
4738 struct iwn_tx_radiotap_header *tap = &sc->sc_txtap;
4739
4740 tap->wt_flags = 0;
4741 tap->wt_rate = rate;
4742
4743 ieee80211_radiotap_tx(vap, m);
4744 }
4745
4746 tx->len = htole16(totlen);
4747 tx->tid = 0;
4748 tx->id = sc->broadcast_id;
4749 tx->rts_ntries = params->ibp_try1;
4750 tx->data_ntries = params->ibp_try0;
4751 tx->lifetime = htole32(IWN_LIFETIME_INFINITE);
4752 tx->rate = iwn_rate_to_plcp(sc, ni, rate);
4753
4754 /* Group or management frame. */
4755 tx->linkq = 0;
4756
4757 /* Set physical address of "scratch area". */
4758 tx->loaddr = htole32(IWN_LOADDR(data->scratch_paddr));
4759 tx->hiaddr = IWN_HIADDR(data->scratch_paddr);
4760
4761 /* Copy 802.11 header in TX command. */
4762 memcpy((uint8_t *)(tx + 1), wh, hdrlen);
4763
4764 /* Trim 802.11 header. */
4765 m_adj(m, hdrlen);
4766 tx->security = 0;
4767 tx->flags = htole32(flags);
4768
4769 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, m, segs,
4770 &nsegs, BUS_DMA_NOWAIT);
4771 if (error != 0) {
4772 if (error != EFBIG) {
4773 device_printf(sc->sc_dev,
4774 "%s: can't map mbuf (error %d)\n", __func__, error);
4775 return error;
4776 }
4777 /* Too many DMA segments, linearize mbuf. */
4778 m1 = m_collapse(m, M_NOWAIT, IWN_MAX_SCATTER - 1);
4779 if (m1 == NULL) {
4780 device_printf(sc->sc_dev,
4781 "%s: could not defrag mbuf\n", __func__);
4782 return ENOBUFS;
4783 }
4784 m = m1;
4785
4786 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, m,
4787 segs, &nsegs, BUS_DMA_NOWAIT);
4788 if (error != 0) {
4789 device_printf(sc->sc_dev,
4790 "%s: can't map mbuf (error %d)\n", __func__, error);
4791 return error;
4792 }
4793 }
4794
4795 data->m = m;
4796 data->ni = ni;
4797
4798 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: qid %d idx %d len %d nsegs %d\n",
4799 __func__, ring->qid, ring->cur, m->m_pkthdr.len, nsegs);
4800
4801 /* Fill TX descriptor. */
4802 desc->nsegs = 1;
4803 if (m->m_len != 0)
4804 desc->nsegs += nsegs;
4805 /* First DMA segment is used by the TX command. */
4806 desc->segs[0].addr = htole32(IWN_LOADDR(data->cmd_paddr));
4807 desc->segs[0].len = htole16(IWN_HIADDR(data->cmd_paddr) |
4808 (4 + sizeof (*tx) + hdrlen + pad) << 4);
4809 /* Other DMA segments are for data payload. */
4810 seg = &segs[0];
4811 for (i = 1; i <= nsegs; i++) {
4812 desc->segs[i].addr = htole32(IWN_LOADDR(seg->ds_addr));
4813 desc->segs[i].len = htole16(IWN_HIADDR(seg->ds_addr) |
4814 seg->ds_len << 4);
4815 seg++;
4816 }
4817
4818 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
4819 bus_dmamap_sync(ring->cmd_dma.tag, ring->cmd_dma.map,
4820 BUS_DMASYNC_PREWRITE);
4821 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
4822 BUS_DMASYNC_PREWRITE);
4823
4824 /* Update TX scheduler. */
4825 if (ring->qid >= sc->firstaggqueue)
4826 ops->update_sched(sc, ring->qid, ring->cur, tx->id, totlen);
4827
4828 /* Kick TX ring. */
4829 ring->cur = (ring->cur + 1) % IWN_TX_RING_COUNT;
4830 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur);
4831
4832 /* Mark TX ring as full if we reach a certain threshold. */
4833 if (++ring->queued > IWN_TX_RING_HIMARK)
4834 sc->qfullmsk |= 1 << ring->qid;
4835
4836 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
4837
4838 return 0;
4839 }
4840
4841 static void
4842 iwn_xmit_task(void *arg0, int pending)
4843 {
4844 struct iwn_softc *sc = arg0;
4845 struct ieee80211_node *ni;
4846 struct mbuf *m;
4847 int error;
4848 struct ieee80211_bpf_params p;
4849 int have_p;
4850
4851 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: called\n", __func__);
4852
4853 IWN_LOCK(sc);
4854 /*
4855 * Dequeue frames, attempt to transmit,
4856 * then disable beaconwait when we're done.
4857 */
4858 while ((m = mbufq_dequeue(&sc->sc_xmit_queue)) != NULL) {
4859 have_p = 0;
4860 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
4861
4862 /* Get xmit params if appropriate */
4863 if (ieee80211_get_xmit_params(m, &p) == 0)
4864 have_p = 1;
4865
4866 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: m=%p, have_p=%d\n",
4867 __func__, m, have_p);
4868
4869 /* If we have xmit params, use them */
4870 if (have_p)
4871 error = iwn_tx_data_raw(sc, m, ni, &p);
4872 else
4873 error = iwn_tx_data(sc, m, ni);
4874
4875 if (error != 0) {
4876 if_inc_counter(ni->ni_vap->iv_ifp,
4877 IFCOUNTER_OERRORS, 1);
4878 ieee80211_free_node(ni);
4879 m_freem(m);
4880 }
4881 }
4882
4883 sc->sc_beacon_wait = 0;
4884 IWN_UNLOCK(sc);
4885 }
4886
4887 /*
4888 * raw frame xmit - free node/reference if failed.
4889 */
4890 static int
4891 iwn_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
4892 const struct ieee80211_bpf_params *params)
4893 {
4894 struct ieee80211com *ic = ni->ni_ic;
4895 struct iwn_softc *sc = ic->ic_softc;
4896 int error = 0;
4897
4898 DPRINTF(sc, IWN_DEBUG_XMIT | IWN_DEBUG_TRACE, "->%s begin\n", __func__);
4899
4900 IWN_LOCK(sc);
4901 if ((sc->sc_flags & IWN_FLAG_RUNNING) == 0) {
4902 m_freem(m);
4903 IWN_UNLOCK(sc);
4904 return (ENETDOWN);
4905 }
4906
4907 /* queue frame if we have to */
4908 if (sc->sc_beacon_wait) {
4909 if (iwn_xmit_queue_enqueue(sc, m) != 0) {
4910 m_freem(m);
4911 IWN_UNLOCK(sc);
4912 return (ENOBUFS);
4913 }
4914 /* Queued, so just return OK */
4915 IWN_UNLOCK(sc);
4916 return (0);
4917 }
4918
4919 if (params == NULL) {
4920 /*
4921 * Legacy path; interpret frame contents to decide
4922 * precisely how to send the frame.
4923 */
4924 error = iwn_tx_data(sc, m, ni);
4925 } else {
4926 /*
4927 * Caller supplied explicit parameters to use in
4928 * sending the frame.
4929 */
4930 error = iwn_tx_data_raw(sc, m, ni, params);
4931 }
4932 if (error == 0)
4933 sc->sc_tx_timer = 5;
4934 else
4935 m_freem(m);
4936
4937 IWN_UNLOCK(sc);
4938
4939 DPRINTF(sc, IWN_DEBUG_TRACE | IWN_DEBUG_XMIT, "->%s: end\n",__func__);
4940
4941 return (error);
4942 }
4943
4944 /*
4945 * transmit - don't free mbuf if failed; don't free node ref if failed.
4946 */
4947 static int
4948 iwn_transmit(struct ieee80211com *ic, struct mbuf *m)
4949 {
4950 struct iwn_softc *sc = ic->ic_softc;
4951 struct ieee80211_node *ni;
4952 int error;
4953
4954 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
4955
4956 IWN_LOCK(sc);
4957 if ((sc->sc_flags & IWN_FLAG_RUNNING) == 0 || sc->sc_beacon_wait) {
4958 IWN_UNLOCK(sc);
4959 return (ENXIO);
4960 }
4961
4962 if (sc->qfullmsk) {
4963 IWN_UNLOCK(sc);
4964 return (ENOBUFS);
4965 }
4966
4967 error = iwn_tx_data(sc, m, ni);
4968 if (!error)
4969 sc->sc_tx_timer = 5;
4970 IWN_UNLOCK(sc);
4971 return (error);
4972 }
4973
4974 static void
4975 iwn_scan_timeout(void *arg)
4976 {
4977 struct iwn_softc *sc = arg;
4978 struct ieee80211com *ic = &sc->sc_ic;
4979
4980 ic_printf(ic, "scan timeout\n");
4981 ieee80211_restart_all(ic);
4982 }
4983
4984 static void
4985 iwn_watchdog(void *arg)
4986 {
4987 struct iwn_softc *sc = arg;
4988 struct ieee80211com *ic = &sc->sc_ic;
4989
4990 IWN_LOCK_ASSERT(sc);
4991
4992 KASSERT(sc->sc_flags & IWN_FLAG_RUNNING, ("not running"));
4993
4994 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
4995
4996 if (sc->sc_tx_timer > 0) {
4997 if (--sc->sc_tx_timer == 0) {
4998 ic_printf(ic, "device timeout\n");
4999 ieee80211_restart_all(ic);
5000 return;
5001 }
5002 }
5003 callout_reset(&sc->watchdog_to, hz, iwn_watchdog, sc);
5004 }
5005
5006 static int
5007 iwn_cdev_open(struct cdev *dev, int flags, int type, struct thread *td)
5008 {
5009
5010 return (0);
5011 }
5012
5013 static int
5014 iwn_cdev_close(struct cdev *dev, int flags, int type, struct thread *td)
5015 {
5016
5017 return (0);
5018 }
5019
5020 static int
5021 iwn_cdev_ioctl(struct cdev *dev, unsigned long cmd, caddr_t data, int fflag,
5022 struct thread *td)
5023 {
5024 int rc;
5025 struct iwn_softc *sc = dev->si_drv1;
5026 struct iwn_ioctl_data *d;
5027
5028 rc = priv_check(td, PRIV_DRIVER);
5029 if (rc != 0)
5030 return (0);
5031
5032 switch (cmd) {
5033 case SIOCGIWNSTATS:
5034 d = (struct iwn_ioctl_data *) data;
5035 IWN_LOCK(sc);
5036 /* XXX validate permissions/memory/etc? */
5037 rc = copyout(&sc->last_stat, d->dst_addr, sizeof(struct iwn_stats));
5038 IWN_UNLOCK(sc);
5039 break;
5040 case SIOCZIWNSTATS:
5041 IWN_LOCK(sc);
5042 memset(&sc->last_stat, 0, sizeof(struct iwn_stats));
5043 IWN_UNLOCK(sc);
5044 break;
5045 default:
5046 rc = EINVAL;
5047 break;
5048 }
5049 return (rc);
5050 }
5051
5052 static int
5053 iwn_ioctl(struct ieee80211com *ic, u_long cmd, void *data)
5054 {
5055
5056 return (ENOTTY);
5057 }
5058
5059 static void
5060 iwn_parent(struct ieee80211com *ic)
5061 {
5062 struct iwn_softc *sc = ic->ic_softc;
5063 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
5064 int startall = 0, stop = 0;
5065
5066 IWN_LOCK(sc);
5067 if (ic->ic_nrunning > 0) {
5068 if (!(sc->sc_flags & IWN_FLAG_RUNNING)) {
5069 iwn_init_locked(sc);
5070 if (IWN_READ(sc, IWN_GP_CNTRL) & IWN_GP_CNTRL_RFKILL)
5071 startall = 1;
5072 else
5073 stop = 1;
5074 }
5075 } else if (sc->sc_flags & IWN_FLAG_RUNNING)
5076 iwn_stop_locked(sc);
5077 IWN_UNLOCK(sc);
5078 if (startall)
5079 ieee80211_start_all(ic);
5080 else if (vap != NULL && stop)
5081 ieee80211_stop(vap);
5082 }
5083
5084 /*
5085 * Send a command to the firmware.
5086 */
5087 static int
5088 iwn_cmd(struct iwn_softc *sc, int code, const void *buf, int size, int async)
5089 {
5090 struct iwn_tx_ring *ring;
5091 struct iwn_tx_desc *desc;
5092 struct iwn_tx_data *data;
5093 struct iwn_tx_cmd *cmd;
5094 struct mbuf *m;
5095 bus_addr_t paddr;
5096 int totlen, error;
5097 int cmd_queue_num;
5098
5099 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
5100
5101 if (async == 0)
5102 IWN_LOCK_ASSERT(sc);
5103
5104 if (sc->sc_flags & IWN_FLAG_PAN_SUPPORT)
5105 cmd_queue_num = IWN_PAN_CMD_QUEUE;
5106 else
5107 cmd_queue_num = IWN_CMD_QUEUE_NUM;
5108
5109 ring = &sc->txq[cmd_queue_num];
5110 desc = &ring->desc[ring->cur];
5111 data = &ring->data[ring->cur];
5112 totlen = 4 + size;
5113
5114 if (size > sizeof cmd->data) {
5115 /* Command is too large to fit in a descriptor. */
5116 if (totlen > MCLBYTES)
5117 return EINVAL;
5118 m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE);
5119 if (m == NULL)
5120 return ENOMEM;
5121 cmd = mtod(m, struct iwn_tx_cmd *);
5122 error = bus_dmamap_load(ring->data_dmat, data->map, cmd,
5123 totlen, iwn_dma_map_addr, &paddr, BUS_DMA_NOWAIT);
5124 if (error != 0) {
5125 m_freem(m);
5126 return error;
5127 }
5128 data->m = m;
5129 } else {
5130 cmd = &ring->cmd[ring->cur];
5131 paddr = data->cmd_paddr;
5132 }
5133
5134 cmd->code = code;
5135 cmd->flags = 0;
5136 cmd->qid = ring->qid;
5137 cmd->idx = ring->cur;
5138 memcpy(cmd->data, buf, size);
5139
5140 desc->nsegs = 1;
5141 desc->segs[0].addr = htole32(IWN_LOADDR(paddr));
5142 desc->segs[0].len = htole16(IWN_HIADDR(paddr) | totlen << 4);
5143
5144 DPRINTF(sc, IWN_DEBUG_CMD, "%s: %s (0x%x) flags %d qid %d idx %d\n",
5145 __func__, iwn_intr_str(cmd->code), cmd->code,
5146 cmd->flags, cmd->qid, cmd->idx);
5147
5148 if (size > sizeof cmd->data) {
5149 bus_dmamap_sync(ring->data_dmat, data->map,
5150 BUS_DMASYNC_PREWRITE);
5151 } else {
5152 bus_dmamap_sync(ring->cmd_dma.tag, ring->cmd_dma.map,
5153 BUS_DMASYNC_PREWRITE);
5154 }
5155 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
5156 BUS_DMASYNC_PREWRITE);
5157
5158 /* Kick command ring. */
5159 ring->cur = (ring->cur + 1) % IWN_TX_RING_COUNT;
5160 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur);
5161
5162 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
5163
5164 return async ? 0 : msleep(desc, &sc->sc_mtx, PCATCH, "iwncmd", hz);
5165 }
5166
5167 static int
5168 iwn4965_add_node(struct iwn_softc *sc, struct iwn_node_info *node, int async)
5169 {
5170 struct iwn4965_node_info hnode;
5171 caddr_t src, dst;
5172
5173 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
5174
5175 /*
5176 * We use the node structure for 5000 Series internally (it is
5177 * a superset of the one for 4965AGN). We thus copy the common
5178 * fields before sending the command.
5179 */
5180 src = (caddr_t)node;
5181 dst = (caddr_t)&hnode;
5182 memcpy(dst, src, 48);
5183 /* Skip TSC, RX MIC and TX MIC fields from ``src''. */
5184 memcpy(dst + 48, src + 72, 20);
5185 return iwn_cmd(sc, IWN_CMD_ADD_NODE, &hnode, sizeof hnode, async);
5186 }
5187
5188 static int
5189 iwn5000_add_node(struct iwn_softc *sc, struct iwn_node_info *node, int async)
5190 {
5191
5192 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
5193
5194 /* Direct mapping. */
5195 return iwn_cmd(sc, IWN_CMD_ADD_NODE, node, sizeof (*node), async);
5196 }
5197
5198 static int
5199 iwn_set_link_quality(struct iwn_softc *sc, struct ieee80211_node *ni)
5200 {
5201 struct iwn_node *wn = (void *)ni;
5202 struct ieee80211_rateset *rs;
5203 struct iwn_cmd_link_quality linkq;
5204 int i, rate, txrate;
5205 int is_11n;
5206
5207 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
5208
5209 memset(&linkq, 0, sizeof linkq);
5210 linkq.id = wn->id;
5211 linkq.antmsk_1stream = iwn_get_1stream_tx_antmask(sc);
5212 linkq.antmsk_2stream = iwn_get_2stream_tx_antmask(sc);
5213
5214 linkq.ampdu_max = 32; /* XXX negotiated? */
5215 linkq.ampdu_threshold = 3;
5216 linkq.ampdu_limit = htole16(4000); /* 4ms */
5217
5218 DPRINTF(sc, IWN_DEBUG_XMIT,
5219 "%s: 1stream antenna=0x%02x, 2stream antenna=0x%02x, ntxstreams=%d\n",
5220 __func__,
5221 linkq.antmsk_1stream,
5222 linkq.antmsk_2stream,
5223 sc->ntxchains);
5224
5225 /*
5226 * Are we using 11n rates? Ensure the channel is
5227 * 11n _and_ we have some 11n rates, or don't
5228 * try.
5229 */
5230 if (IEEE80211_IS_CHAN_HT(ni->ni_chan) && ni->ni_htrates.rs_nrates > 0) {
5231 rs = (struct ieee80211_rateset *) &ni->ni_htrates;
5232 is_11n = 1;
5233 } else {
5234 rs = &ni->ni_rates;
5235 is_11n = 0;
5236 }
5237
5238 /* Start at highest available bit-rate. */
5239 /*
5240 * XXX this is all very dirty!
5241 */
5242 if (is_11n)
5243 txrate = ni->ni_htrates.rs_nrates - 1;
5244 else
5245 txrate = rs->rs_nrates - 1;
5246 for (i = 0; i < IWN_MAX_TX_RETRIES; i++) {
5247 uint32_t plcp;
5248
5249 /*
5250 * XXX TODO: ensure the last two slots are the two lowest
5251 * rate entries, just for now.
5252 */
5253 if (i == 14 || i == 15)
5254 txrate = 0;
5255
5256 if (is_11n)
5257 rate = IEEE80211_RATE_MCS | rs->rs_rates[txrate];
5258 else
5259 rate = IEEE80211_RV(rs->rs_rates[txrate]);
5260
5261 /* Do rate -> PLCP config mapping */
5262 plcp = iwn_rate_to_plcp(sc, ni, rate);
5263 linkq.retry[i] = plcp;
5264 DPRINTF(sc, IWN_DEBUG_XMIT,
5265 "%s: i=%d, txrate=%d, rate=0x%02x, plcp=0x%08x\n",
5266 __func__,
5267 i,
5268 txrate,
5269 rate,
5270 le32toh(plcp));
5271
5272 /*
5273 * The mimo field is an index into the table which
5274 * indicates the first index where it and subsequent entries
5275 * will not be using MIMO.
5276 *
5277 * Since we're filling linkq from 0..15 and we're filling
5278 * from the highest MCS rates to the lowest rates, if we
5279 * _are_ doing a dual-stream rate, set mimo to idx+1 (ie,
5280 * the next entry.) That way if the next entry is a non-MIMO
5281 * entry, we're already pointing at it.
5282 */
5283 if ((le32toh(plcp) & IWN_RFLAG_MCS) &&
5284 IEEE80211_RV(le32toh(plcp)) > 7)
5285 linkq.mimo = i + 1;
5286
5287 /* Next retry at immediate lower bit-rate. */
5288 if (txrate > 0)
5289 txrate--;
5290 }
5291 /*
5292 * If we reached the end of the list and indeed we hit
5293 * all MIMO rates (eg 5300 doing MCS23-15) then yes,
5294 * set mimo to 15. Setting it to 16 panics the firmware.
5295 */
5296 if (linkq.mimo > 15)
5297 linkq.mimo = 15;
5298
5299 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: mimo = %d\n", __func__, linkq.mimo);
5300
5301 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
5302
5303 return iwn_cmd(sc, IWN_CMD_LINK_QUALITY, &linkq, sizeof linkq, 1);
5304 }
5305
5306 /*
5307 * Broadcast node is used to send group-addressed and management frames.
5308 */
5309 static int
5310 iwn_add_broadcast_node(struct iwn_softc *sc, int async)
5311 {
5312 struct iwn_ops *ops = &sc->ops;
5313 struct ieee80211com *ic = &sc->sc_ic;
5314 struct iwn_node_info node;
5315 struct iwn_cmd_link_quality linkq;
5316 uint8_t txant;
5317 int i, error;
5318
5319 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
5320
5321 sc->rxon = &sc->rx_on[IWN_RXON_BSS_CTX];
5322
5323 memset(&node, 0, sizeof node);
5324 IEEE80211_ADDR_COPY(node.macaddr, ieee80211broadcastaddr);
5325 node.id = sc->broadcast_id;
5326 DPRINTF(sc, IWN_DEBUG_RESET, "%s: adding broadcast node\n", __func__);
5327 if ((error = ops->add_node(sc, &node, async)) != 0)
5328 return error;
5329
5330 /* Use the first valid TX antenna. */
5331 txant = IWN_LSB(sc->txchainmask);
5332
5333 memset(&linkq, 0, sizeof linkq);
5334 linkq.id = sc->broadcast_id;
5335 linkq.antmsk_1stream = iwn_get_1stream_tx_antmask(sc);
5336 linkq.antmsk_2stream = iwn_get_2stream_tx_antmask(sc);
5337 linkq.ampdu_max = 64;
5338 linkq.ampdu_threshold = 3;
5339 linkq.ampdu_limit = htole16(4000); /* 4ms */
5340
5341 /* Use lowest mandatory bit-rate. */
5342 /* XXX rate table lookup? */
5343 if (IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan))
5344 linkq.retry[0] = htole32(0xd);
5345 else
5346 linkq.retry[0] = htole32(10 | IWN_RFLAG_CCK);
5347 linkq.retry[0] |= htole32(IWN_RFLAG_ANT(txant));
5348 /* Use same bit-rate for all TX retries. */
5349 for (i = 1; i < IWN_MAX_TX_RETRIES; i++) {
5350 linkq.retry[i] = linkq.retry[0];
5351 }
5352
5353 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
5354
5355 return iwn_cmd(sc, IWN_CMD_LINK_QUALITY, &linkq, sizeof linkq, async);
5356 }
5357
5358 static int
5359 iwn_updateedca(struct ieee80211com *ic)
5360 {
5361 #define IWN_EXP2(x) ((1 << (x)) - 1) /* CWmin = 2^ECWmin - 1 */
5362 struct iwn_softc *sc = ic->ic_softc;
5363 struct iwn_edca_params cmd;
5364 int aci;
5365
5366 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
5367
5368 memset(&cmd, 0, sizeof cmd);
5369 cmd.flags = htole32(IWN_EDCA_UPDATE);
5370
5371 IEEE80211_LOCK(ic);
5372 for (aci = 0; aci < WME_NUM_AC; aci++) {
5373 const struct wmeParams *ac =
5374 &ic->ic_wme.wme_chanParams.cap_wmeParams[aci];
5375 cmd.ac[aci].aifsn = ac->wmep_aifsn;
5376 cmd.ac[aci].cwmin = htole16(IWN_EXP2(ac->wmep_logcwmin));
5377 cmd.ac[aci].cwmax = htole16(IWN_EXP2(ac->wmep_logcwmax));
5378 cmd.ac[aci].txoplimit =
5379 htole16(IEEE80211_TXOP_TO_US(ac->wmep_txopLimit));
5380 }
5381 IEEE80211_UNLOCK(ic);
5382
5383 IWN_LOCK(sc);
5384 (void)iwn_cmd(sc, IWN_CMD_EDCA_PARAMS, &cmd, sizeof cmd, 1);
5385 IWN_UNLOCK(sc);
5386
5387 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
5388
5389 return 0;
5390 #undef IWN_EXP2
5391 }
5392
5393 static void
5394 iwn_update_mcast(struct ieee80211com *ic)
5395 {
5396 /* Ignore */
5397 }
5398
5399 static void
5400 iwn_set_led(struct iwn_softc *sc, uint8_t which, uint8_t off, uint8_t on)
5401 {
5402 struct iwn_cmd_led led;
5403
5404 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
5405
5406 #if 0
5407 /* XXX don't set LEDs during scan? */
5408 if (sc->sc_is_scanning)
5409 return;
5410 #endif
5411
5412 /* Clear microcode LED ownership. */
5413 IWN_CLRBITS(sc, IWN_LED, IWN_LED_BSM_CTRL);
5414
5415 led.which = which;
5416 led.unit = htole32(10000); /* on/off in unit of 100ms */
5417 led.off = off;
5418 led.on = on;
5419 (void)iwn_cmd(sc, IWN_CMD_SET_LED, &led, sizeof led, 1);
5420 }
5421
5422 /*
5423 * Set the critical temperature at which the firmware will stop the radio
5424 * and notify us.
5425 */
5426 static int
5427 iwn_set_critical_temp(struct iwn_softc *sc)
5428 {
5429 struct iwn_critical_temp crit;
5430 int32_t temp;
5431
5432 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
5433
5434 IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_CTEMP_STOP_RF);
5435
5436 if (sc->hw_type == IWN_HW_REV_TYPE_5150)
5437 temp = (IWN_CTOK(110) - sc->temp_off) * -5;
5438 else if (sc->hw_type == IWN_HW_REV_TYPE_4965)
5439 temp = IWN_CTOK(110);
5440 else
5441 temp = 110;
5442 memset(&crit, 0, sizeof crit);
5443 crit.tempR = htole32(temp);
5444 DPRINTF(sc, IWN_DEBUG_RESET, "setting critical temp to %d\n", temp);
5445 return iwn_cmd(sc, IWN_CMD_SET_CRITICAL_TEMP, &crit, sizeof crit, 0);
5446 }
5447
5448 static int
5449 iwn_set_timing(struct iwn_softc *sc, struct ieee80211_node *ni)
5450 {
5451 struct iwn_cmd_timing cmd;
5452 uint64_t val, mod;
5453
5454 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
5455
5456 memset(&cmd, 0, sizeof cmd);
5457 memcpy(&cmd.tstamp, ni->ni_tstamp.data, sizeof (uint64_t));
5458 cmd.bintval = htole16(ni->ni_intval);
5459 cmd.lintval = htole16(10);
5460
5461 /* Compute remaining time until next beacon. */
5462 val = (uint64_t)ni->ni_intval * IEEE80211_DUR_TU;
5463 mod = le64toh(cmd.tstamp) % val;
5464 cmd.binitval = htole32((uint32_t)(val - mod));
5465
5466 DPRINTF(sc, IWN_DEBUG_RESET, "timing bintval=%u tstamp=%ju, init=%u\n",
5467 ni->ni_intval, le64toh(cmd.tstamp), (uint32_t)(val - mod));
5468
5469 return iwn_cmd(sc, IWN_CMD_TIMING, &cmd, sizeof cmd, 1);
5470 }
5471
5472 static void
5473 iwn4965_power_calibration(struct iwn_softc *sc, int temp)
5474 {
5475 struct ieee80211com *ic = &sc->sc_ic;
5476
5477 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
5478
5479 /* Adjust TX power if need be (delta >= 3 degC). */
5480 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: temperature %d->%d\n",
5481 __func__, sc->temp, temp);
5482 if (abs(temp - sc->temp) >= 3) {
5483 /* Record temperature of last calibration. */
5484 sc->temp = temp;
5485 (void)iwn4965_set_txpower(sc, ic->ic_bsschan, 1);
5486 }
5487 }
5488
5489 /*
5490 * Set TX power for current channel (each rate has its own power settings).
5491 * This function takes into account the regulatory information from EEPROM,
5492 * the current temperature and the current voltage.
5493 */
5494 static int
5495 iwn4965_set_txpower(struct iwn_softc *sc, struct ieee80211_channel *ch,
5496 int async)
5497 {
5498 /* Fixed-point arithmetic division using a n-bit fractional part. */
5499 #define fdivround(a, b, n) \
5500 ((((1 << n) * (a)) / (b) + (1 << n) / 2) / (1 << n))
5501 /* Linear interpolation. */
5502 #define interpolate(x, x1, y1, x2, y2, n) \
5503 ((y1) + fdivround(((int)(x) - (x1)) * ((y2) - (y1)), (x2) - (x1), n))
5504
5505 static const int tdiv[IWN_NATTEN_GROUPS] = { 9, 8, 8, 8, 6 };
5506 struct iwn_ucode_info *uc = &sc->ucode_info;
5507 struct iwn4965_cmd_txpower cmd;
5508 struct iwn4965_eeprom_chan_samples *chans;
5509 const uint8_t *rf_gain, *dsp_gain;
5510 int32_t vdiff, tdiff;
5511 int i, c, grp, maxpwr;
5512 uint8_t chan;
5513
5514 sc->rxon = &sc->rx_on[IWN_RXON_BSS_CTX];
5515 /* Retrieve current channel from last RXON. */
5516 chan = sc->rxon->chan;
5517 DPRINTF(sc, IWN_DEBUG_RESET, "setting TX power for channel %d\n",
5518 chan);
5519
5520 memset(&cmd, 0, sizeof cmd);
5521 cmd.band = IEEE80211_IS_CHAN_5GHZ(ch) ? 0 : 1;
5522 cmd.chan = chan;
5523
5524 if (IEEE80211_IS_CHAN_5GHZ(ch)) {
5525 maxpwr = sc->maxpwr5GHz;
5526 rf_gain = iwn4965_rf_gain_5ghz;
5527 dsp_gain = iwn4965_dsp_gain_5ghz;
5528 } else {
5529 maxpwr = sc->maxpwr2GHz;
5530 rf_gain = iwn4965_rf_gain_2ghz;
5531 dsp_gain = iwn4965_dsp_gain_2ghz;
5532 }
5533
5534 /* Compute voltage compensation. */
5535 vdiff = ((int32_t)le32toh(uc->volt) - sc->eeprom_voltage) / 7;
5536 if (vdiff > 0)
5537 vdiff *= 2;
5538 if (abs(vdiff) > 2)
5539 vdiff = 0;
5540 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW,
5541 "%s: voltage compensation=%d (UCODE=%d, EEPROM=%d)\n",
5542 __func__, vdiff, le32toh(uc->volt), sc->eeprom_voltage);
5543
5544 /* Get channel attenuation group. */
5545 if (chan <= 20) /* 1-20 */
5546 grp = 4;
5547 else if (chan <= 43) /* 34-43 */
5548 grp = 0;
5549 else if (chan <= 70) /* 44-70 */
5550 grp = 1;
5551 else if (chan <= 124) /* 71-124 */
5552 grp = 2;
5553 else /* 125-200 */
5554 grp = 3;
5555 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW,
5556 "%s: chan %d, attenuation group=%d\n", __func__, chan, grp);
5557
5558 /* Get channel sub-band. */
5559 for (i = 0; i < IWN_NBANDS; i++)
5560 if (sc->bands[i].lo != 0 &&
5561 sc->bands[i].lo <= chan && chan <= sc->bands[i].hi)
5562 break;
5563 if (i == IWN_NBANDS) /* Can't happen in real-life. */
5564 return EINVAL;
5565 chans = sc->bands[i].chans;
5566 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW,
5567 "%s: chan %d sub-band=%d\n", __func__, chan, i);
5568
5569 for (c = 0; c < 2; c++) {
5570 uint8_t power, gain, temp;
5571 int maxchpwr, pwr, ridx, idx;
5572
5573 power = interpolate(chan,
5574 chans[0].num, chans[0].samples[c][1].power,
5575 chans[1].num, chans[1].samples[c][1].power, 1);
5576 gain = interpolate(chan,
5577 chans[0].num, chans[0].samples[c][1].gain,
5578 chans[1].num, chans[1].samples[c][1].gain, 1);
5579 temp = interpolate(chan,
5580 chans[0].num, chans[0].samples[c][1].temp,
5581 chans[1].num, chans[1].samples[c][1].temp, 1);
5582 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW,
5583 "%s: Tx chain %d: power=%d gain=%d temp=%d\n",
5584 __func__, c, power, gain, temp);
5585
5586 /* Compute temperature compensation. */
5587 tdiff = ((sc->temp - temp) * 2) / tdiv[grp];
5588 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW,
5589 "%s: temperature compensation=%d (current=%d, EEPROM=%d)\n",
5590 __func__, tdiff, sc->temp, temp);
5591
5592 for (ridx = 0; ridx <= IWN_RIDX_MAX; ridx++) {
5593 /* Convert dBm to half-dBm. */
5594 maxchpwr = sc->maxpwr[chan] * 2;
5595 if ((ridx / 8) & 1)
5596 maxchpwr -= 6; /* MIMO 2T: -3dB */
5597
5598 pwr = maxpwr;
5599
5600 /* Adjust TX power based on rate. */
5601 if ((ridx % 8) == 5)
5602 pwr -= 15; /* OFDM48: -7.5dB */
5603 else if ((ridx % 8) == 6)
5604 pwr -= 17; /* OFDM54: -8.5dB */
5605 else if ((ridx % 8) == 7)
5606 pwr -= 20; /* OFDM60: -10dB */
5607 else
5608 pwr -= 10; /* Others: -5dB */
5609
5610 /* Do not exceed channel max TX power. */
5611 if (pwr > maxchpwr)
5612 pwr = maxchpwr;
5613
5614 idx = gain - (pwr - power) - tdiff - vdiff;
5615 if ((ridx / 8) & 1) /* MIMO */
5616 idx += (int32_t)le32toh(uc->atten[grp][c]);
5617
5618 if (cmd.band == 0)
5619 idx += 9; /* 5GHz */
5620 if (ridx == IWN_RIDX_MAX)
5621 idx += 5; /* CCK */
5622
5623 /* Make sure idx stays in a valid range. */
5624 if (idx < 0)
5625 idx = 0;
5626 else if (idx > IWN4965_MAX_PWR_INDEX)
5627 idx = IWN4965_MAX_PWR_INDEX;
5628
5629 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW,
5630 "%s: Tx chain %d, rate idx %d: power=%d\n",
5631 __func__, c, ridx, idx);
5632 cmd.power[ridx].rf_gain[c] = rf_gain[idx];
5633 cmd.power[ridx].dsp_gain[c] = dsp_gain[idx];
5634 }
5635 }
5636
5637 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW,
5638 "%s: set tx power for chan %d\n", __func__, chan);
5639 return iwn_cmd(sc, IWN_CMD_TXPOWER, &cmd, sizeof cmd, async);
5640
5641 #undef interpolate
5642 #undef fdivround
5643 }
5644
5645 static int
5646 iwn5000_set_txpower(struct iwn_softc *sc, struct ieee80211_channel *ch,
5647 int async)
5648 {
5649 struct iwn5000_cmd_txpower cmd;
5650 int cmdid;
5651
5652 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
5653
5654 /*
5655 * TX power calibration is handled automatically by the firmware
5656 * for 5000 Series.
5657 */
5658 memset(&cmd, 0, sizeof cmd);
5659 cmd.global_limit = 2 * IWN5000_TXPOWER_MAX_DBM; /* 16 dBm */
5660 cmd.flags = IWN5000_TXPOWER_NO_CLOSED;
5661 cmd.srv_limit = IWN5000_TXPOWER_AUTO;
5662 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_XMIT,
5663 "%s: setting TX power; rev=%d\n",
5664 __func__,
5665 IWN_UCODE_API(sc->ucode_rev));
5666 if (IWN_UCODE_API(sc->ucode_rev) == 1)
5667 cmdid = IWN_CMD_TXPOWER_DBM_V1;
5668 else
5669 cmdid = IWN_CMD_TXPOWER_DBM;
5670 return iwn_cmd(sc, cmdid, &cmd, sizeof cmd, async);
5671 }
5672
5673 /*
5674 * Retrieve the maximum RSSI (in dBm) among receivers.
5675 */
5676 static int
5677 iwn4965_get_rssi(struct iwn_softc *sc, struct iwn_rx_stat *stat)
5678 {
5679 struct iwn4965_rx_phystat *phy = (void *)stat->phybuf;
5680 uint8_t mask, agc;
5681 int rssi;
5682
5683 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
5684
5685 mask = (le16toh(phy->antenna) >> 4) & IWN_ANT_ABC;
5686 agc = (le16toh(phy->agc) >> 7) & 0x7f;
5687
5688 rssi = 0;
5689 if (mask & IWN_ANT_A)
5690 rssi = MAX(rssi, phy->rssi[0]);
5691 if (mask & IWN_ANT_B)
5692 rssi = MAX(rssi, phy->rssi[2]);
5693 if (mask & IWN_ANT_C)
5694 rssi = MAX(rssi, phy->rssi[4]);
5695
5696 DPRINTF(sc, IWN_DEBUG_RECV,
5697 "%s: agc %d mask 0x%x rssi %d %d %d result %d\n", __func__, agc,
5698 mask, phy->rssi[0], phy->rssi[2], phy->rssi[4],
5699 rssi - agc - IWN_RSSI_TO_DBM);
5700 return rssi - agc - IWN_RSSI_TO_DBM;
5701 }
5702
5703 static int
5704 iwn5000_get_rssi(struct iwn_softc *sc, struct iwn_rx_stat *stat)
5705 {
5706 struct iwn5000_rx_phystat *phy = (void *)stat->phybuf;
5707 uint8_t agc;
5708 int rssi;
5709
5710 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
5711
5712 agc = (le32toh(phy->agc) >> 9) & 0x7f;
5713
5714 rssi = MAX(le16toh(phy->rssi[0]) & 0xff,
5715 le16toh(phy->rssi[1]) & 0xff);
5716 rssi = MAX(le16toh(phy->rssi[2]) & 0xff, rssi);
5717
5718 DPRINTF(sc, IWN_DEBUG_RECV,
5719 "%s: agc %d rssi %d %d %d result %d\n", __func__, agc,
5720 phy->rssi[0], phy->rssi[1], phy->rssi[2],
5721 rssi - agc - IWN_RSSI_TO_DBM);
5722 return rssi - agc - IWN_RSSI_TO_DBM;
5723 }
5724
5725 /*
5726 * Retrieve the average noise (in dBm) among receivers.
5727 */
5728 static int
5729 iwn_get_noise(const struct iwn_rx_general_stats *stats)
5730 {
5731 int i, total, nbant, noise;
5732
5733 total = nbant = 0;
5734 for (i = 0; i < 3; i++) {
5735 if ((noise = le32toh(stats->noise[i]) & 0xff) == 0)
5736 continue;
5737 total += noise;
5738 nbant++;
5739 }
5740 /* There should be at least one antenna but check anyway. */
5741 return (nbant == 0) ? -127 : (total / nbant) - 107;
5742 }
5743
5744 /*
5745 * Compute temperature (in degC) from last received statistics.
5746 */
5747 static int
5748 iwn4965_get_temperature(struct iwn_softc *sc)
5749 {
5750 struct iwn_ucode_info *uc = &sc->ucode_info;
5751 int32_t r1, r2, r3, r4, temp;
5752
5753 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
5754
5755 r1 = le32toh(uc->temp[0].chan20MHz);
5756 r2 = le32toh(uc->temp[1].chan20MHz);
5757 r3 = le32toh(uc->temp[2].chan20MHz);
5758 r4 = le32toh(sc->rawtemp);
5759
5760 if (r1 == r3) /* Prevents division by 0 (should not happen). */
5761 return 0;
5762
5763 /* Sign-extend 23-bit R4 value to 32-bit. */
5764 r4 = ((r4 & 0xffffff) ^ 0x800000) - 0x800000;
5765 /* Compute temperature in Kelvin. */
5766 temp = (259 * (r4 - r2)) / (r3 - r1);
5767 temp = (temp * 97) / 100 + 8;
5768
5769 DPRINTF(sc, IWN_DEBUG_ANY, "temperature %dK/%dC\n", temp,
5770 IWN_KTOC(temp));
5771 return IWN_KTOC(temp);
5772 }
5773
5774 static int
5775 iwn5000_get_temperature(struct iwn_softc *sc)
5776 {
5777 int32_t temp;
5778
5779 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
5780
5781 /*
5782 * Temperature is not used by the driver for 5000 Series because
5783 * TX power calibration is handled by firmware.
5784 */
5785 temp = le32toh(sc->rawtemp);
5786 if (sc->hw_type == IWN_HW_REV_TYPE_5150) {
5787 temp = (temp / -5) + sc->temp_off;
5788 temp = IWN_KTOC(temp);
5789 }
5790 return temp;
5791 }
5792
5793 /*
5794 * Initialize sensitivity calibration state machine.
5795 */
5796 static int
5797 iwn_init_sensitivity(struct iwn_softc *sc)
5798 {
5799 struct iwn_ops *ops = &sc->ops;
5800 struct iwn_calib_state *calib = &sc->calib;
5801 uint32_t flags;
5802 int error;
5803
5804 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
5805
5806 /* Reset calibration state machine. */
5807 memset(calib, 0, sizeof (*calib));
5808 calib->state = IWN_CALIB_STATE_INIT;
5809 calib->cck_state = IWN_CCK_STATE_HIFA;
5810 /* Set initial correlation values. */
5811 calib->ofdm_x1 = sc->limits->min_ofdm_x1;
5812 calib->ofdm_mrc_x1 = sc->limits->min_ofdm_mrc_x1;
5813 calib->ofdm_x4 = sc->limits->min_ofdm_x4;
5814 calib->ofdm_mrc_x4 = sc->limits->min_ofdm_mrc_x4;
5815 calib->cck_x4 = 125;
5816 calib->cck_mrc_x4 = sc->limits->min_cck_mrc_x4;
5817 calib->energy_cck = sc->limits->energy_cck;
5818
5819 /* Write initial sensitivity. */
5820 if ((error = iwn_send_sensitivity(sc)) != 0)
5821 return error;
5822
5823 /* Write initial gains. */
5824 if ((error = ops->init_gains(sc)) != 0)
5825 return error;
5826
5827 /* Request statistics at each beacon interval. */
5828 flags = 0;
5829 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: sending request for statistics\n",
5830 __func__);
5831 return iwn_cmd(sc, IWN_CMD_GET_STATISTICS, &flags, sizeof flags, 1);
5832 }
5833
5834 /*
5835 * Collect noise and RSSI statistics for the first 20 beacons received
5836 * after association and use them to determine connected antennas and
5837 * to set differential gains.
5838 */
5839 static void
5840 iwn_collect_noise(struct iwn_softc *sc,
5841 const struct iwn_rx_general_stats *stats)
5842 {
5843 struct iwn_ops *ops = &sc->ops;
5844 struct iwn_calib_state *calib = &sc->calib;
5845 struct ieee80211com *ic = &sc->sc_ic;
5846 uint32_t val;
5847 int i;
5848
5849 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
5850
5851 /* Accumulate RSSI and noise for all 3 antennas. */
5852 for (i = 0; i < 3; i++) {
5853 calib->rssi[i] += le32toh(stats->rssi[i]) & 0xff;
5854 calib->noise[i] += le32toh(stats->noise[i]) & 0xff;
5855 }
5856 /* NB: We update differential gains only once after 20 beacons. */
5857 if (++calib->nbeacons < 20)
5858 return;
5859
5860 /* Determine highest average RSSI. */
5861 val = MAX(calib->rssi[0], calib->rssi[1]);
5862 val = MAX(calib->rssi[2], val);
5863
5864 /* Determine which antennas are connected. */
5865 sc->chainmask = sc->rxchainmask;
5866 for (i = 0; i < 3; i++)
5867 if (val - calib->rssi[i] > 15 * 20)
5868 sc->chainmask &= ~(1 << i);
5869 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_XMIT,
5870 "%s: RX chains mask: theoretical=0x%x, actual=0x%x\n",
5871 __func__, sc->rxchainmask, sc->chainmask);
5872
5873 /* If none of the TX antennas are connected, keep at least one. */
5874 if ((sc->chainmask & sc->txchainmask) == 0)
5875 sc->chainmask |= IWN_LSB(sc->txchainmask);
5876
5877 (void)ops->set_gains(sc);
5878 calib->state = IWN_CALIB_STATE_RUN;
5879
5880 #ifdef notyet
5881 /* XXX Disable RX chains with no antennas connected. */
5882 sc->rxon->rxchain = htole16(IWN_RXCHAIN_SEL(sc->chainmask));
5883 if (sc->sc_is_scanning)
5884 device_printf(sc->sc_dev,
5885 "%s: is_scanning set, before RXON\n",
5886 __func__);
5887 (void)iwn_cmd(sc, IWN_CMD_RXON, sc->rxon, sc->rxonsz, 1);
5888 #endif
5889
5890 /* Enable power-saving mode if requested by user. */
5891 if (ic->ic_flags & IEEE80211_F_PMGTON)
5892 (void)iwn_set_pslevel(sc, 0, 3, 1);
5893
5894 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
5895
5896 }
5897
5898 static int
5899 iwn4965_init_gains(struct iwn_softc *sc)
5900 {
5901 struct iwn_phy_calib_gain cmd;
5902
5903 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
5904
5905 memset(&cmd, 0, sizeof cmd);
5906 cmd.code = IWN4965_PHY_CALIB_DIFF_GAIN;
5907 /* Differential gains initially set to 0 for all 3 antennas. */
5908 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
5909 "%s: setting initial differential gains\n", __func__);
5910 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1);
5911 }
5912
5913 static int
5914 iwn5000_init_gains(struct iwn_softc *sc)
5915 {
5916 struct iwn_phy_calib cmd;
5917
5918 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
5919
5920 memset(&cmd, 0, sizeof cmd);
5921 cmd.code = sc->reset_noise_gain;
5922 cmd.ngroups = 1;
5923 cmd.isvalid = 1;
5924 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
5925 "%s: setting initial differential gains\n", __func__);
5926 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1);
5927 }
5928
5929 static int
5930 iwn4965_set_gains(struct iwn_softc *sc)
5931 {
5932 struct iwn_calib_state *calib = &sc->calib;
5933 struct iwn_phy_calib_gain cmd;
5934 int i, delta, noise;
5935
5936 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
5937
5938 /* Get minimal noise among connected antennas. */
5939 noise = INT_MAX; /* NB: There's at least one antenna. */
5940 for (i = 0; i < 3; i++)
5941 if (sc->chainmask & (1 << i))
5942 noise = MIN(calib->noise[i], noise);
5943
5944 memset(&cmd, 0, sizeof cmd);
5945 cmd.code = IWN4965_PHY_CALIB_DIFF_GAIN;
5946 /* Set differential gains for connected antennas. */
5947 for (i = 0; i < 3; i++) {
5948 if (sc->chainmask & (1 << i)) {
5949 /* Compute attenuation (in unit of 1.5dB). */
5950 delta = (noise - (int32_t)calib->noise[i]) / 30;
5951 /* NB: delta <= 0 */
5952 /* Limit to [-4.5dB,0]. */
5953 cmd.gain[i] = MIN(abs(delta), 3);
5954 if (delta < 0)
5955 cmd.gain[i] |= 1 << 2; /* sign bit */
5956 }
5957 }
5958 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
5959 "setting differential gains Ant A/B/C: %x/%x/%x (%x)\n",
5960 cmd.gain[0], cmd.gain[1], cmd.gain[2], sc->chainmask);
5961 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1);
5962 }
5963
5964 static int
5965 iwn5000_set_gains(struct iwn_softc *sc)
5966 {
5967 struct iwn_calib_state *calib = &sc->calib;
5968 struct iwn_phy_calib_gain cmd;
5969 int i, ant, div, delta;
5970
5971 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
5972
5973 /* We collected 20 beacons and !=6050 need a 1.5 factor. */
5974 div = (sc->hw_type == IWN_HW_REV_TYPE_6050) ? 20 : 30;
5975
5976 memset(&cmd, 0, sizeof cmd);
5977 cmd.code = sc->noise_gain;
5978 cmd.ngroups = 1;
5979 cmd.isvalid = 1;
5980 /* Get first available RX antenna as referential. */
5981 ant = IWN_LSB(sc->rxchainmask);
5982 /* Set differential gains for other antennas. */
5983 for (i = ant + 1; i < 3; i++) {
5984 if (sc->chainmask & (1 << i)) {
5985 /* The delta is relative to antenna "ant". */
5986 delta = ((int32_t)calib->noise[ant] -
5987 (int32_t)calib->noise[i]) / div;
5988 /* Limit to [-4.5dB,+4.5dB]. */
5989 cmd.gain[i - 1] = MIN(abs(delta), 3);
5990 if (delta < 0)
5991 cmd.gain[i - 1] |= 1 << 2; /* sign bit */
5992 }
5993 }
5994 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_XMIT,
5995 "setting differential gains Ant B/C: %x/%x (%x)\n",
5996 cmd.gain[0], cmd.gain[1], sc->chainmask);
5997 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1);
5998 }
5999
6000 /*
6001 * Tune RF RX sensitivity based on the number of false alarms detected
6002 * during the last beacon period.
6003 */
6004 static void
6005 iwn_tune_sensitivity(struct iwn_softc *sc, const struct iwn_rx_stats *stats)
6006 {
6007 #define inc(val, inc, max) \
6008 if ((val) < (max)) { \
6009 if ((val) < (max) - (inc)) \
6010 (val) += (inc); \
6011 else \
6012 (val) = (max); \
6013 needs_update = 1; \
6014 }
6015 #define dec(val, dec, min) \
6016 if ((val) > (min)) { \
6017 if ((val) > (min) + (dec)) \
6018 (val) -= (dec); \
6019 else \
6020 (val) = (min); \
6021 needs_update = 1; \
6022 }
6023
6024 const struct iwn_sensitivity_limits *limits = sc->limits;
6025 struct iwn_calib_state *calib = &sc->calib;
6026 uint32_t val, rxena, fa;
6027 uint32_t energy[3], energy_min;
6028 uint8_t noise[3], noise_ref;
6029 int i, needs_update = 0;
6030
6031 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
6032
6033 /* Check that we've been enabled long enough. */
6034 if ((rxena = le32toh(stats->general.load)) == 0){
6035 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end not so long\n", __func__);
6036 return;
6037 }
6038
6039 /* Compute number of false alarms since last call for OFDM. */
6040 fa = le32toh(stats->ofdm.bad_plcp) - calib->bad_plcp_ofdm;
6041 fa += le32toh(stats->ofdm.fa) - calib->fa_ofdm;
6042 fa *= 200 * IEEE80211_DUR_TU; /* 200TU */
6043
6044 if (fa > 50 * rxena) {
6045 /* High false alarm count, decrease sensitivity. */
6046 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
6047 "%s: OFDM high false alarm count: %u\n", __func__, fa);
6048 inc(calib->ofdm_x1, 1, limits->max_ofdm_x1);
6049 inc(calib->ofdm_mrc_x1, 1, limits->max_ofdm_mrc_x1);
6050 inc(calib->ofdm_x4, 1, limits->max_ofdm_x4);
6051 inc(calib->ofdm_mrc_x4, 1, limits->max_ofdm_mrc_x4);
6052
6053 } else if (fa < 5 * rxena) {
6054 /* Low false alarm count, increase sensitivity. */
6055 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
6056 "%s: OFDM low false alarm count: %u\n", __func__, fa);
6057 dec(calib->ofdm_x1, 1, limits->min_ofdm_x1);
6058 dec(calib->ofdm_mrc_x1, 1, limits->min_ofdm_mrc_x1);
6059 dec(calib->ofdm_x4, 1, limits->min_ofdm_x4);
6060 dec(calib->ofdm_mrc_x4, 1, limits->min_ofdm_mrc_x4);
6061 }
6062
6063 /* Compute maximum noise among 3 receivers. */
6064 for (i = 0; i < 3; i++)
6065 noise[i] = (le32toh(stats->general.noise[i]) >> 8) & 0xff;
6066 val = MAX(noise[0], noise[1]);
6067 val = MAX(noise[2], val);
6068 /* Insert it into our samples table. */
6069 calib->noise_samples[calib->cur_noise_sample] = val;
6070 calib->cur_noise_sample = (calib->cur_noise_sample + 1) % 20;
6071
6072 /* Compute maximum noise among last 20 samples. */
6073 noise_ref = calib->noise_samples[0];
6074 for (i = 1; i < 20; i++)
6075 noise_ref = MAX(noise_ref, calib->noise_samples[i]);
6076
6077 /* Compute maximum energy among 3 receivers. */
6078 for (i = 0; i < 3; i++)
6079 energy[i] = le32toh(stats->general.energy[i]);
6080 val = MIN(energy[0], energy[1]);
6081 val = MIN(energy[2], val);
6082 /* Insert it into our samples table. */
6083 calib->energy_samples[calib->cur_energy_sample] = val;
6084 calib->cur_energy_sample = (calib->cur_energy_sample + 1) % 10;
6085
6086 /* Compute minimum energy among last 10 samples. */
6087 energy_min = calib->energy_samples[0];
6088 for (i = 1; i < 10; i++)
6089 energy_min = MAX(energy_min, calib->energy_samples[i]);
6090 energy_min += 6;
6091
6092 /* Compute number of false alarms since last call for CCK. */
6093 fa = le32toh(stats->cck.bad_plcp) - calib->bad_plcp_cck;
6094 fa += le32toh(stats->cck.fa) - calib->fa_cck;
6095 fa *= 200 * IEEE80211_DUR_TU; /* 200TU */
6096
6097 if (fa > 50 * rxena) {
6098 /* High false alarm count, decrease sensitivity. */
6099 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
6100 "%s: CCK high false alarm count: %u\n", __func__, fa);
6101 calib->cck_state = IWN_CCK_STATE_HIFA;
6102 calib->low_fa = 0;
6103
6104 if (calib->cck_x4 > 160) {
6105 calib->noise_ref = noise_ref;
6106 if (calib->energy_cck > 2)
6107 dec(calib->energy_cck, 2, energy_min);
6108 }
6109 if (calib->cck_x4 < 160) {
6110 calib->cck_x4 = 161;
6111 needs_update = 1;
6112 } else
6113 inc(calib->cck_x4, 3, limits->max_cck_x4);
6114
6115 inc(calib->cck_mrc_x4, 3, limits->max_cck_mrc_x4);
6116
6117 } else if (fa < 5 * rxena) {
6118 /* Low false alarm count, increase sensitivity. */
6119 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
6120 "%s: CCK low false alarm count: %u\n", __func__, fa);
6121 calib->cck_state = IWN_CCK_STATE_LOFA;
6122 calib->low_fa++;
6123
6124 if (calib->cck_state != IWN_CCK_STATE_INIT &&
6125 (((int32_t)calib->noise_ref - (int32_t)noise_ref) > 2 ||
6126 calib->low_fa > 100)) {
6127 inc(calib->energy_cck, 2, limits->min_energy_cck);
6128 dec(calib->cck_x4, 3, limits->min_cck_x4);
6129 dec(calib->cck_mrc_x4, 3, limits->min_cck_mrc_x4);
6130 }
6131 } else {
6132 /* Not worth to increase or decrease sensitivity. */
6133 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
6134 "%s: CCK normal false alarm count: %u\n", __func__, fa);
6135 calib->low_fa = 0;
6136 calib->noise_ref = noise_ref;
6137
6138 if (calib->cck_state == IWN_CCK_STATE_HIFA) {
6139 /* Previous interval had many false alarms. */
6140 dec(calib->energy_cck, 8, energy_min);
6141 }
6142 calib->cck_state = IWN_CCK_STATE_INIT;
6143 }
6144
6145 if (needs_update)
6146 (void)iwn_send_sensitivity(sc);
6147
6148 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
6149
6150 #undef dec
6151 #undef inc
6152 }
6153
6154 static int
6155 iwn_send_sensitivity(struct iwn_softc *sc)
6156 {
6157 struct iwn_calib_state *calib = &sc->calib;
6158 struct iwn_enhanced_sensitivity_cmd cmd;
6159 int len;
6160
6161 memset(&cmd, 0, sizeof cmd);
6162 len = sizeof (struct iwn_sensitivity_cmd);
6163 cmd.which = IWN_SENSITIVITY_WORKTBL;
6164 /* OFDM modulation. */
6165 cmd.corr_ofdm_x1 = htole16(calib->ofdm_x1);
6166 cmd.corr_ofdm_mrc_x1 = htole16(calib->ofdm_mrc_x1);
6167 cmd.corr_ofdm_x4 = htole16(calib->ofdm_x4);
6168 cmd.corr_ofdm_mrc_x4 = htole16(calib->ofdm_mrc_x4);
6169 cmd.energy_ofdm = htole16(sc->limits->energy_ofdm);
6170 cmd.energy_ofdm_th = htole16(62);
6171 /* CCK modulation. */
6172 cmd.corr_cck_x4 = htole16(calib->cck_x4);
6173 cmd.corr_cck_mrc_x4 = htole16(calib->cck_mrc_x4);
6174 cmd.energy_cck = htole16(calib->energy_cck);
6175 /* Barker modulation: use default values. */
6176 cmd.corr_barker = htole16(190);
6177 cmd.corr_barker_mrc = htole16(sc->limits->barker_mrc);
6178
6179 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
6180 "%s: set sensitivity %d/%d/%d/%d/%d/%d/%d\n", __func__,
6181 calib->ofdm_x1, calib->ofdm_mrc_x1, calib->ofdm_x4,
6182 calib->ofdm_mrc_x4, calib->cck_x4,
6183 calib->cck_mrc_x4, calib->energy_cck);
6184
6185 if (!(sc->sc_flags & IWN_FLAG_ENH_SENS))
6186 goto send;
6187 /* Enhanced sensitivity settings. */
6188 len = sizeof (struct iwn_enhanced_sensitivity_cmd);
6189 cmd.ofdm_det_slope_mrc = htole16(668);
6190 cmd.ofdm_det_icept_mrc = htole16(4);
6191 cmd.ofdm_det_slope = htole16(486);
6192 cmd.ofdm_det_icept = htole16(37);
6193 cmd.cck_det_slope_mrc = htole16(853);
6194 cmd.cck_det_icept_mrc = htole16(4);
6195 cmd.cck_det_slope = htole16(476);
6196 cmd.cck_det_icept = htole16(99);
6197 send:
6198 return iwn_cmd(sc, IWN_CMD_SET_SENSITIVITY, &cmd, len, 1);
6199 }
6200
6201 /*
6202 * Look at the increase of PLCP errors over time; if it exceeds
6203 * a programmed threshold then trigger an RF retune.
6204 */
6205 static void
6206 iwn_check_rx_recovery(struct iwn_softc *sc, struct iwn_stats *rs)
6207 {
6208 int32_t delta_ofdm, delta_ht, delta_cck;
6209 struct iwn_calib_state *calib = &sc->calib;
6210 int delta_ticks, cur_ticks;
6211 int delta_msec;
6212 int thresh;
6213
6214 /*
6215 * Calculate the difference between the current and
6216 * previous statistics.
6217 */
6218 delta_cck = le32toh(rs->rx.cck.bad_plcp) - calib->bad_plcp_cck;
6219 delta_ofdm = le32toh(rs->rx.ofdm.bad_plcp) - calib->bad_plcp_ofdm;
6220 delta_ht = le32toh(rs->rx.ht.bad_plcp) - calib->bad_plcp_ht;
6221
6222 /*
6223 * Calculate the delta in time between successive statistics
6224 * messages. Yes, it can roll over; so we make sure that
6225 * this doesn't happen.
6226 *
6227 * XXX go figure out what to do about rollover
6228 * XXX go figure out what to do if ticks rolls over to -ve instead!
6229 * XXX go stab signed integer overflow undefined-ness in the face.
6230 */
6231 cur_ticks = ticks;
6232 delta_ticks = cur_ticks - sc->last_calib_ticks;
6233
6234 /*
6235 * If any are negative, then the firmware likely reset; so just
6236 * bail. We'll pick this up next time.
6237 */
6238 if (delta_cck < 0 || delta_ofdm < 0 || delta_ht < 0 || delta_ticks < 0)
6239 return;
6240
6241 /*
6242 * delta_ticks is in ticks; we need to convert it up to milliseconds
6243 * so we can do some useful math with it.
6244 */
6245 delta_msec = ticks_to_msecs(delta_ticks);
6246
6247 /*
6248 * Calculate what our threshold is given the current delta_msec.
6249 */
6250 thresh = sc->base_params->plcp_err_threshold * delta_msec;
6251
6252 DPRINTF(sc, IWN_DEBUG_STATE,
6253 "%s: time delta: %d; cck=%d, ofdm=%d, ht=%d, total=%d, thresh=%d\n",
6254 __func__,
6255 delta_msec,
6256 delta_cck,
6257 delta_ofdm,
6258 delta_ht,
6259 (delta_msec + delta_cck + delta_ofdm + delta_ht),
6260 thresh);
6261
6262 /*
6263 * If we need a retune, then schedule a single channel scan
6264 * to a channel that isn't the currently active one!
6265 *
6266 * The math from linux iwlwifi:
6267 *
6268 * if ((delta * 100 / msecs) > threshold)
6269 */
6270 if (thresh > 0 && (delta_cck + delta_ofdm + delta_ht) * 100 > thresh) {
6271 DPRINTF(sc, IWN_DEBUG_ANY,
6272 "%s: PLCP error threshold raw (%d) comparison (%d) "
6273 "over limit (%d); retune!\n",
6274 __func__,
6275 (delta_cck + delta_ofdm + delta_ht),
6276 (delta_cck + delta_ofdm + delta_ht) * 100,
6277 thresh);
6278 }
6279 }
6280
6281 /*
6282 * Set STA mode power saving level (between 0 and 5).
6283 * Level 0 is CAM (Continuously Aware Mode), 5 is for maximum power saving.
6284 */
6285 static int
6286 iwn_set_pslevel(struct iwn_softc *sc, int dtim, int level, int async)
6287 {
6288 struct iwn_pmgt_cmd cmd;
6289 const struct iwn_pmgt *pmgt;
6290 uint32_t max, skip_dtim;
6291 uint32_t reg;
6292 int i;
6293
6294 DPRINTF(sc, IWN_DEBUG_PWRSAVE,
6295 "%s: dtim=%d, level=%d, async=%d\n",
6296 __func__,
6297 dtim,
6298 level,
6299 async);
6300
6301 /* Select which PS parameters to use. */
6302 if (dtim <= 2)
6303 pmgt = &iwn_pmgt[0][level];
6304 else if (dtim <= 10)
6305 pmgt = &iwn_pmgt[1][level];
6306 else
6307 pmgt = &iwn_pmgt[2][level];
6308
6309 memset(&cmd, 0, sizeof cmd);
6310 if (level != 0) /* not CAM */
6311 cmd.flags |= htole16(IWN_PS_ALLOW_SLEEP);
6312 if (level == 5)
6313 cmd.flags |= htole16(IWN_PS_FAST_PD);
6314 /* Retrieve PCIe Active State Power Management (ASPM). */
6315 reg = pci_read_config(sc->sc_dev, sc->sc_cap_off + PCIER_LINK_CTL, 4);
6316 if (!(reg & PCIEM_LINK_CTL_ASPMC_L0S)) /* L0s Entry disabled. */
6317 cmd.flags |= htole16(IWN_PS_PCI_PMGT);
6318 cmd.rxtimeout = htole32(pmgt->rxtimeout * 1024);
6319 cmd.txtimeout = htole32(pmgt->txtimeout * 1024);
6320
6321 if (dtim == 0) {
6322 dtim = 1;
6323 skip_dtim = 0;
6324 } else
6325 skip_dtim = pmgt->skip_dtim;
6326 if (skip_dtim != 0) {
6327 cmd.flags |= htole16(IWN_PS_SLEEP_OVER_DTIM);
6328 max = pmgt->intval[4];
6329 if (max == (uint32_t)-1)
6330 max = dtim * (skip_dtim + 1);
6331 else if (max > dtim)
6332 max = rounddown(max, dtim);
6333 } else
6334 max = dtim;
6335 for (i = 0; i < 5; i++)
6336 cmd.intval[i] = htole32(MIN(max, pmgt->intval[i]));
6337
6338 DPRINTF(sc, IWN_DEBUG_RESET, "setting power saving level to %d\n",
6339 level);
6340 return iwn_cmd(sc, IWN_CMD_SET_POWER_MODE, &cmd, sizeof cmd, async);
6341 }
6342
6343 static int
6344 iwn_send_btcoex(struct iwn_softc *sc)
6345 {
6346 struct iwn_bluetooth cmd;
6347
6348 memset(&cmd, 0, sizeof cmd);
6349 cmd.flags = IWN_BT_COEX_CHAN_ANN | IWN_BT_COEX_BT_PRIO;
6350 cmd.lead_time = IWN_BT_LEAD_TIME_DEF;
6351 cmd.max_kill = IWN_BT_MAX_KILL_DEF;
6352 DPRINTF(sc, IWN_DEBUG_RESET, "%s: configuring bluetooth coexistence\n",
6353 __func__);
6354 return iwn_cmd(sc, IWN_CMD_BT_COEX, &cmd, sizeof(cmd), 0);
6355 }
6356
6357 static int
6358 iwn_send_advanced_btcoex(struct iwn_softc *sc)
6359 {
6360 static const uint32_t btcoex_3wire[12] = {
6361 0xaaaaaaaa, 0xaaaaaaaa, 0xaeaaaaaa, 0xaaaaaaaa,
6362 0xcc00ff28, 0x0000aaaa, 0xcc00aaaa, 0x0000aaaa,
6363 0xc0004000, 0x00004000, 0xf0005000, 0xf0005000,
6364 };
6365 struct iwn6000_btcoex_config btconfig;
6366 struct iwn2000_btcoex_config btconfig2k;
6367 struct iwn_btcoex_priotable btprio;
6368 struct iwn_btcoex_prot btprot;
6369 int error, i;
6370 uint8_t flags;
6371
6372 memset(&btconfig, 0, sizeof btconfig);
6373 memset(&btconfig2k, 0, sizeof btconfig2k);
6374
6375 flags = IWN_BT_FLAG_COEX6000_MODE_3W <<
6376 IWN_BT_FLAG_COEX6000_MODE_SHIFT; // Done as is in linux kernel 3.2
6377
6378 if (sc->base_params->bt_sco_disable)
6379 flags &= ~IWN_BT_FLAG_SYNC_2_BT_DISABLE;
6380 else
6381 flags |= IWN_BT_FLAG_SYNC_2_BT_DISABLE;
6382
6383 flags |= IWN_BT_FLAG_COEX6000_CHAN_INHIBITION;
6384
6385 /* Default flags result is 145 as old value */
6386
6387 /*
6388 * Flags value has to be review. Values must change if we
6389 * which to disable it
6390 */
6391 if (sc->base_params->bt_session_2) {
6392 btconfig2k.flags = flags;
6393 btconfig2k.max_kill = 5;
6394 btconfig2k.bt3_t7_timer = 1;
6395 btconfig2k.kill_ack = htole32(0xffff0000);
6396 btconfig2k.kill_cts = htole32(0xffff0000);
6397 btconfig2k.sample_time = 2;
6398 btconfig2k.bt3_t2_timer = 0xc;
6399
6400 for (i = 0; i < 12; i++)
6401 btconfig2k.lookup_table[i] = htole32(btcoex_3wire[i]);
6402 btconfig2k.valid = htole16(0xff);
6403 btconfig2k.prio_boost = htole32(0xf0);
6404 DPRINTF(sc, IWN_DEBUG_RESET,
6405 "%s: configuring advanced bluetooth coexistence"
6406 " session 2, flags : 0x%x\n",
6407 __func__,
6408 flags);
6409 error = iwn_cmd(sc, IWN_CMD_BT_COEX, &btconfig2k,
6410 sizeof(btconfig2k), 1);
6411 } else {
6412 btconfig.flags = flags;
6413 btconfig.max_kill = 5;
6414 btconfig.bt3_t7_timer = 1;
6415 btconfig.kill_ack = htole32(0xffff0000);
6416 btconfig.kill_cts = htole32(0xffff0000);
6417 btconfig.sample_time = 2;
6418 btconfig.bt3_t2_timer = 0xc;
6419
6420 for (i = 0; i < 12; i++)
6421 btconfig.lookup_table[i] = htole32(btcoex_3wire[i]);
6422 btconfig.valid = htole16(0xff);
6423 btconfig.prio_boost = 0xf0;
6424 DPRINTF(sc, IWN_DEBUG_RESET,
6425 "%s: configuring advanced bluetooth coexistence,"
6426 " flags : 0x%x\n",
6427 __func__,
6428 flags);
6429 error = iwn_cmd(sc, IWN_CMD_BT_COEX, &btconfig,
6430 sizeof(btconfig), 1);
6431 }
6432
6433 if (error != 0)
6434 return error;
6435
6436 memset(&btprio, 0, sizeof btprio);
6437 btprio.calib_init1 = 0x6;
6438 btprio.calib_init2 = 0x7;
6439 btprio.calib_periodic_low1 = 0x2;
6440 btprio.calib_periodic_low2 = 0x3;
6441 btprio.calib_periodic_high1 = 0x4;
6442 btprio.calib_periodic_high2 = 0x5;
6443 btprio.dtim = 0x6;
6444 btprio.scan52 = 0x8;
6445 btprio.scan24 = 0xa;
6446 error = iwn_cmd(sc, IWN_CMD_BT_COEX_PRIOTABLE, &btprio, sizeof(btprio),
6447 1);
6448 if (error != 0)
6449 return error;
6450
6451 /* Force BT state machine change. */
6452 memset(&btprot, 0, sizeof btprot);
6453 btprot.open = 1;
6454 btprot.type = 1;
6455 error = iwn_cmd(sc, IWN_CMD_BT_COEX_PROT, &btprot, sizeof(btprot), 1);
6456 if (error != 0)
6457 return error;
6458 btprot.open = 0;
6459 return iwn_cmd(sc, IWN_CMD_BT_COEX_PROT, &btprot, sizeof(btprot), 1);
6460 }
6461
6462 static int
6463 iwn5000_runtime_calib(struct iwn_softc *sc)
6464 {
6465 struct iwn5000_calib_config cmd;
6466
6467 memset(&cmd, 0, sizeof cmd);
6468 cmd.ucode.once.enable = 0xffffffff;
6469 cmd.ucode.once.start = IWN5000_CALIB_DC;
6470 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
6471 "%s: configuring runtime calibration\n", __func__);
6472 return iwn_cmd(sc, IWN5000_CMD_CALIB_CONFIG, &cmd, sizeof(cmd), 0);
6473 }
6474
6475 static uint32_t
6476 iwn_get_rxon_ht_flags(struct iwn_softc *sc, struct ieee80211_channel *c)
6477 {
6478 struct ieee80211com *ic = &sc->sc_ic;
6479 uint32_t htflags = 0;
6480
6481 if (! IEEE80211_IS_CHAN_HT(c))
6482 return (0);
6483
6484 htflags |= IWN_RXON_HT_PROTMODE(ic->ic_curhtprotmode);
6485
6486 if (IEEE80211_IS_CHAN_HT40(c)) {
6487 switch (ic->ic_curhtprotmode) {
6488 case IEEE80211_HTINFO_OPMODE_HT20PR:
6489 htflags |= IWN_RXON_HT_MODEPURE40;
6490 break;
6491 default:
6492 htflags |= IWN_RXON_HT_MODEMIXED;
6493 break;
6494 }
6495 }
6496 if (IEEE80211_IS_CHAN_HT40D(c))
6497 htflags |= IWN_RXON_HT_HT40MINUS;
6498
6499 return (htflags);
6500 }
6501
6502 static int
6503 iwn_config(struct iwn_softc *sc)
6504 {
6505 struct iwn_ops *ops = &sc->ops;
6506 struct ieee80211com *ic = &sc->sc_ic;
6507 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
6508 const uint8_t *macaddr;
6509 uint32_t txmask;
6510 uint16_t rxchain;
6511 int error;
6512
6513 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
6514
6515 if ((sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_TEMP_OFFSET)
6516 && (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_TEMP_OFFSETv2)) {
6517 device_printf(sc->sc_dev,"%s: temp_offset and temp_offsetv2 are"
6518 " exclusive each together. Review NIC config file. Conf"
6519 " : 0x%08x Flags : 0x%08x \n", __func__,
6520 sc->base_params->calib_need,
6521 (IWN_FLG_NEED_PHY_CALIB_TEMP_OFFSET |
6522 IWN_FLG_NEED_PHY_CALIB_TEMP_OFFSETv2));
6523 return (EINVAL);
6524 }
6525
6526 /* Compute temperature calib if needed. Will be send by send calib */
6527 if (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_TEMP_OFFSET) {
6528 error = iwn5000_temp_offset_calib(sc);
6529 if (error != 0) {
6530 device_printf(sc->sc_dev,
6531 "%s: could not set temperature offset\n", __func__);
6532 return (error);
6533 }
6534 } else if (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_TEMP_OFFSETv2) {
6535 error = iwn5000_temp_offset_calibv2(sc);
6536 if (error != 0) {
6537 device_printf(sc->sc_dev,
6538 "%s: could not compute temperature offset v2\n",
6539 __func__);
6540 return (error);
6541 }
6542 }
6543
6544 if (sc->hw_type == IWN_HW_REV_TYPE_6050) {
6545 /* Configure runtime DC calibration. */
6546 error = iwn5000_runtime_calib(sc);
6547 if (error != 0) {
6548 device_printf(sc->sc_dev,
6549 "%s: could not configure runtime calibration\n",
6550 __func__);
6551 return error;
6552 }
6553 }
6554
6555 /* Configure valid TX chains for >=5000 Series. */
6556 if (sc->hw_type != IWN_HW_REV_TYPE_4965 &&
6557 IWN_UCODE_API(sc->ucode_rev) > 1) {
6558 txmask = htole32(sc->txchainmask);
6559 DPRINTF(sc, IWN_DEBUG_RESET | IWN_DEBUG_XMIT,
6560 "%s: configuring valid TX chains 0x%x\n", __func__, txmask);
6561 error = iwn_cmd(sc, IWN5000_CMD_TX_ANT_CONFIG, &txmask,
6562 sizeof txmask, 0);
6563 if (error != 0) {
6564 device_printf(sc->sc_dev,
6565 "%s: could not configure valid TX chains, "
6566 "error %d\n", __func__, error);
6567 return error;
6568 }
6569 }
6570
6571 /* Configure bluetooth coexistence. */
6572 error = 0;
6573
6574 /* Configure bluetooth coexistence if needed. */
6575 if (sc->base_params->bt_mode == IWN_BT_ADVANCED)
6576 error = iwn_send_advanced_btcoex(sc);
6577 if (sc->base_params->bt_mode == IWN_BT_SIMPLE)
6578 error = iwn_send_btcoex(sc);
6579
6580 if (error != 0) {
6581 device_printf(sc->sc_dev,
6582 "%s: could not configure bluetooth coexistence, error %d\n",
6583 __func__, error);
6584 return error;
6585 }
6586
6587 /* Set mode, channel, RX filter and enable RX. */
6588 sc->rxon = &sc->rx_on[IWN_RXON_BSS_CTX];
6589 memset(sc->rxon, 0, sizeof (struct iwn_rxon));
6590 macaddr = vap ? vap->iv_myaddr : ic->ic_macaddr;
6591 IEEE80211_ADDR_COPY(sc->rxon->myaddr, macaddr);
6592 IEEE80211_ADDR_COPY(sc->rxon->wlap, macaddr);
6593 sc->rxon->chan = ieee80211_chan2ieee(ic, ic->ic_curchan);
6594 sc->rxon->flags = htole32(IWN_RXON_TSF | IWN_RXON_CTS_TO_SELF);
6595 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan))
6596 sc->rxon->flags |= htole32(IWN_RXON_AUTO | IWN_RXON_24GHZ);
6597 switch (ic->ic_opmode) {
6598 case IEEE80211_M_STA:
6599 sc->rxon->mode = IWN_MODE_STA;
6600 sc->rxon->filter = htole32(IWN_FILTER_MULTICAST);
6601 break;
6602 case IEEE80211_M_MONITOR:
6603 sc->rxon->mode = IWN_MODE_MONITOR;
6604 sc->rxon->filter = htole32(IWN_FILTER_MULTICAST |
6605 IWN_FILTER_CTL | IWN_FILTER_PROMISC);
6606 break;
6607 default:
6608 /* Should not get there. */
6609 break;
6610 }
6611 sc->rxon->cck_mask = 0x0f; /* not yet negotiated */
6612 sc->rxon->ofdm_mask = 0xff; /* not yet negotiated */
6613 sc->rxon->ht_single_mask = 0xff;
6614 sc->rxon->ht_dual_mask = 0xff;
6615 sc->rxon->ht_triple_mask = 0xff;
6616 /*
6617 * In active association mode, ensure that
6618 * all the receive chains are enabled.
6619 *
6620 * Since we're not yet doing SMPS, don't allow the
6621 * number of idle RX chains to be less than the active
6622 * number.
6623 */
6624 rxchain =
6625 IWN_RXCHAIN_VALID(sc->rxchainmask) |
6626 IWN_RXCHAIN_MIMO_COUNT(sc->nrxchains) |
6627 IWN_RXCHAIN_IDLE_COUNT(sc->nrxchains);
6628 sc->rxon->rxchain = htole16(rxchain);
6629 DPRINTF(sc, IWN_DEBUG_RESET | IWN_DEBUG_XMIT,
6630 "%s: rxchainmask=0x%x, nrxchains=%d\n",
6631 __func__,
6632 sc->rxchainmask,
6633 sc->nrxchains);
6634
6635 sc->rxon->flags |= htole32(iwn_get_rxon_ht_flags(sc, ic->ic_curchan));
6636
6637 DPRINTF(sc, IWN_DEBUG_RESET,
6638 "%s: setting configuration; flags=0x%08x\n",
6639 __func__, le32toh(sc->rxon->flags));
6640 if (sc->sc_is_scanning)
6641 device_printf(sc->sc_dev,
6642 "%s: is_scanning set, before RXON\n",
6643 __func__);
6644 error = iwn_cmd(sc, IWN_CMD_RXON, sc->rxon, sc->rxonsz, 0);
6645 if (error != 0) {
6646 device_printf(sc->sc_dev, "%s: RXON command failed\n",
6647 __func__);
6648 return error;
6649 }
6650
6651 if ((error = iwn_add_broadcast_node(sc, 0)) != 0) {
6652 device_printf(sc->sc_dev, "%s: could not add broadcast node\n",
6653 __func__);
6654 return error;
6655 }
6656
6657 /* Configuration has changed, set TX power accordingly. */
6658 if ((error = ops->set_txpower(sc, ic->ic_curchan, 0)) != 0) {
6659 device_printf(sc->sc_dev, "%s: could not set TX power\n",
6660 __func__);
6661 return error;
6662 }
6663
6664 if ((error = iwn_set_critical_temp(sc)) != 0) {
6665 device_printf(sc->sc_dev,
6666 "%s: could not set critical temperature\n", __func__);
6667 return error;
6668 }
6669
6670 /* Set power saving level to CAM during initialization. */
6671 if ((error = iwn_set_pslevel(sc, 0, 0, 0)) != 0) {
6672 device_printf(sc->sc_dev,
6673 "%s: could not set power saving level\n", __func__);
6674 return error;
6675 }
6676
6677 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
6678
6679 return 0;
6680 }
6681
6682 static uint16_t
6683 iwn_get_active_dwell_time(struct iwn_softc *sc,
6684 struct ieee80211_channel *c, uint8_t n_probes)
6685 {
6686 /* No channel? Default to 2GHz settings */
6687 if (c == NULL || IEEE80211_IS_CHAN_2GHZ(c)) {
6688 return (IWN_ACTIVE_DWELL_TIME_2GHZ +
6689 IWN_ACTIVE_DWELL_FACTOR_2GHZ * (n_probes + 1));
6690 }
6691
6692 /* 5GHz dwell time */
6693 return (IWN_ACTIVE_DWELL_TIME_5GHZ +
6694 IWN_ACTIVE_DWELL_FACTOR_5GHZ * (n_probes + 1));
6695 }
6696
6697 /*
6698 * Limit the total dwell time to 85% of the beacon interval.
6699 *
6700 * Returns the dwell time in milliseconds.
6701 */
6702 static uint16_t
6703 iwn_limit_dwell(struct iwn_softc *sc, uint16_t dwell_time)
6704 {
6705 struct ieee80211com *ic = &sc->sc_ic;
6706 struct ieee80211vap *vap = NULL;
6707 int bintval = 0;
6708
6709 /* bintval is in TU (1.024mS) */
6710 if (! TAILQ_EMPTY(&ic->ic_vaps)) {
6711 vap = TAILQ_FIRST(&ic->ic_vaps);
6712 bintval = vap->iv_bss->ni_intval;
6713 }
6714
6715 /*
6716 * If it's non-zero, we should calculate the minimum of
6717 * it and the DWELL_BASE.
6718 *
6719 * XXX Yes, the math should take into account that bintval
6720 * is 1.024mS, not 1mS..
6721 */
6722 if (bintval > 0) {
6723 DPRINTF(sc, IWN_DEBUG_SCAN,
6724 "%s: bintval=%d\n",
6725 __func__,
6726 bintval);
6727 return (MIN(IWN_PASSIVE_DWELL_BASE, ((bintval * 85) / 100)));
6728 }
6729
6730 /* No association context? Default */
6731 return (IWN_PASSIVE_DWELL_BASE);
6732 }
6733
6734 static uint16_t
6735 iwn_get_passive_dwell_time(struct iwn_softc *sc, struct ieee80211_channel *c)
6736 {
6737 uint16_t passive;
6738
6739 if (c == NULL || IEEE80211_IS_CHAN_2GHZ(c)) {
6740 passive = IWN_PASSIVE_DWELL_BASE + IWN_PASSIVE_DWELL_TIME_2GHZ;
6741 } else {
6742 passive = IWN_PASSIVE_DWELL_BASE + IWN_PASSIVE_DWELL_TIME_5GHZ;
6743 }
6744
6745 /* Clamp to the beacon interval if we're associated */
6746 return (iwn_limit_dwell(sc, passive));
6747 }
6748
6749 static int
6750 iwn_scan(struct iwn_softc *sc, struct ieee80211vap *vap,
6751 struct ieee80211_scan_state *ss, struct ieee80211_channel *c)
6752 {
6753 struct ieee80211com *ic = &sc->sc_ic;
6754 struct ieee80211_node *ni = vap->iv_bss;
6755 struct iwn_scan_hdr *hdr;
6756 struct iwn_cmd_data *tx;
6757 struct iwn_scan_essid *essid;
6758 struct iwn_scan_chan *chan;
6759 struct ieee80211_frame *wh;
6760 struct ieee80211_rateset *rs;
6761 uint8_t *buf, *frm;
6762 uint16_t rxchain;
6763 uint8_t txant;
6764 int buflen, error;
6765 int is_active;
6766 uint16_t dwell_active, dwell_passive;
6767 uint32_t extra, scan_service_time;
6768
6769 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
6770
6771 /*
6772 * We are absolutely not allowed to send a scan command when another
6773 * scan command is pending.
6774 */
6775 if (sc->sc_is_scanning) {
6776 device_printf(sc->sc_dev, "%s: called whilst scanning!\n",
6777 __func__);
6778 return (EAGAIN);
6779 }
6780
6781 /* Assign the scan channel */
6782 c = ic->ic_curchan;
6783
6784 sc->rxon = &sc->rx_on[IWN_RXON_BSS_CTX];
6785 buf = malloc(IWN_SCAN_MAXSZ, M_DEVBUF, M_NOWAIT | M_ZERO);
6786 if (buf == NULL) {
6787 device_printf(sc->sc_dev,
6788 "%s: could not allocate buffer for scan command\n",
6789 __func__);
6790 return ENOMEM;
6791 }
6792 hdr = (struct iwn_scan_hdr *)buf;
6793 /*
6794 * Move to the next channel if no frames are received within 10ms
6795 * after sending the probe request.
6796 */
6797 hdr->quiet_time = htole16(10); /* timeout in milliseconds */
6798 hdr->quiet_threshold = htole16(1); /* min # of packets */
6799 /*
6800 * Max needs to be greater than active and passive and quiet!
6801 * It's also in microseconds!
6802 */
6803 hdr->max_svc = htole32(250 * 1024);
6804
6805 /*
6806 * Reset scan: interval=100
6807 * Normal scan: interval=becaon interval
6808 * suspend_time: 100 (TU)
6809 *
6810 */
6811 extra = (100 /* suspend_time */ / 100 /* beacon interval */) << 22;
6812 //scan_service_time = extra | ((100 /* susp */ % 100 /* int */) * 1024);
6813 scan_service_time = (4 << 22) | (100 * 1024); /* Hardcode for now! */
6814 hdr->pause_svc = htole32(scan_service_time);
6815
6816 /* Select antennas for scanning. */
6817 rxchain =
6818 IWN_RXCHAIN_VALID(sc->rxchainmask) |
6819 IWN_RXCHAIN_FORCE_MIMO_SEL(sc->rxchainmask) |
6820 IWN_RXCHAIN_DRIVER_FORCE;
6821 if (IEEE80211_IS_CHAN_A(c) &&
6822 sc->hw_type == IWN_HW_REV_TYPE_4965) {
6823 /* Ant A must be avoided in 5GHz because of an HW bug. */
6824 rxchain |= IWN_RXCHAIN_FORCE_SEL(IWN_ANT_B);
6825 } else /* Use all available RX antennas. */
6826 rxchain |= IWN_RXCHAIN_FORCE_SEL(sc->rxchainmask);
6827 hdr->rxchain = htole16(rxchain);
6828 hdr->filter = htole32(IWN_FILTER_MULTICAST | IWN_FILTER_BEACON);
6829
6830 tx = (struct iwn_cmd_data *)(hdr + 1);
6831 tx->flags = htole32(IWN_TX_AUTO_SEQ);
6832 tx->id = sc->broadcast_id;
6833 tx->lifetime = htole32(IWN_LIFETIME_INFINITE);
6834
6835 if (IEEE80211_IS_CHAN_5GHZ(c)) {
6836 /* Send probe requests at 6Mbps. */
6837 tx->rate = htole32(0xd);
6838 rs = &ic->ic_sup_rates[IEEE80211_MODE_11A];
6839 } else {
6840 hdr->flags = htole32(IWN_RXON_24GHZ | IWN_RXON_AUTO);
6841 if (sc->hw_type == IWN_HW_REV_TYPE_4965 &&
6842 sc->rxon->associd && sc->rxon->chan > 14)
6843 tx->rate = htole32(0xd);
6844 else {
6845 /* Send probe requests at 1Mbps. */
6846 tx->rate = htole32(10 | IWN_RFLAG_CCK);
6847 }
6848 rs = &ic->ic_sup_rates[IEEE80211_MODE_11G];
6849 }
6850 /* Use the first valid TX antenna. */
6851 txant = IWN_LSB(sc->txchainmask);
6852 tx->rate |= htole32(IWN_RFLAG_ANT(txant));
6853
6854 /*
6855 * Only do active scanning if we're announcing a probe request
6856 * for a given SSID (or more, if we ever add it to the driver.)
6857 */
6858 is_active = 0;
6859
6860 /*
6861 * If we're scanning for a specific SSID, add it to the command.
6862 *
6863 * XXX maybe look at adding support for scanning multiple SSIDs?
6864 */
6865 essid = (struct iwn_scan_essid *)(tx + 1);
6866 if (ss != NULL) {
6867 if (ss->ss_ssid[0].len != 0) {
6868 essid[0].id = IEEE80211_ELEMID_SSID;
6869 essid[0].len = ss->ss_ssid[0].len;
6870 memcpy(essid[0].data, ss->ss_ssid[0].ssid, ss->ss_ssid[0].len);
6871 }
6872
6873 DPRINTF(sc, IWN_DEBUG_SCAN, "%s: ssid_len=%d, ssid=%*s\n",
6874 __func__,
6875 ss->ss_ssid[0].len,
6876 ss->ss_ssid[0].len,
6877 ss->ss_ssid[0].ssid);
6878
6879 if (ss->ss_nssid > 0)
6880 is_active = 1;
6881 }
6882
6883 /*
6884 * Build a probe request frame. Most of the following code is a
6885 * copy & paste of what is done in net80211.
6886 */
6887 wh = (struct ieee80211_frame *)(essid + 20);
6888 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT |
6889 IEEE80211_FC0_SUBTYPE_PROBE_REQ;
6890 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS;
6891 IEEE80211_ADDR_COPY(wh->i_addr1, vap->iv_ifp->if_broadcastaddr);
6892 IEEE80211_ADDR_COPY(wh->i_addr2, IF_LLADDR(vap->iv_ifp));
6893 IEEE80211_ADDR_COPY(wh->i_addr3, vap->iv_ifp->if_broadcastaddr);
6894 *(uint16_t *)&wh->i_dur[0] = 0; /* filled by HW */
6895 *(uint16_t *)&wh->i_seq[0] = 0; /* filled by HW */
6896
6897 frm = (uint8_t *)(wh + 1);
6898 frm = ieee80211_add_ssid(frm, NULL, 0);
6899 frm = ieee80211_add_rates(frm, rs);
6900 if (rs->rs_nrates > IEEE80211_RATE_SIZE)
6901 frm = ieee80211_add_xrates(frm, rs);
6902 if (ic->ic_htcaps & IEEE80211_HTC_HT)
6903 frm = ieee80211_add_htcap(frm, ni);
6904
6905 /* Set length of probe request. */
6906 tx->len = htole16(frm - (uint8_t *)wh);
6907
6908 /*
6909 * If active scanning is requested but a certain channel is
6910 * marked passive, we can do active scanning if we detect
6911 * transmissions.
6912 *
6913 * There is an issue with some firmware versions that triggers
6914 * a sysassert on a "good CRC threshold" of zero (== disabled),
6915 * on a radar channel even though this means that we should NOT
6916 * send probes.
6917 *
6918 * The "good CRC threshold" is the number of frames that we
6919 * need to receive during our dwell time on a channel before
6920 * sending out probes -- setting this to a huge value will
6921 * mean we never reach it, but at the same time work around
6922 * the aforementioned issue. Thus use IWL_GOOD_CRC_TH_NEVER
6923 * here instead of IWL_GOOD_CRC_TH_DISABLED.
6924 *
6925 * This was fixed in later versions along with some other
6926 * scan changes, and the threshold behaves as a flag in those
6927 * versions.
6928 */
6929
6930 /*
6931 * If we're doing active scanning, set the crc_threshold
6932 * to a suitable value. This is different to active veruss
6933 * passive scanning depending upon the channel flags; the
6934 * firmware will obey that particular check for us.
6935 */
6936 if (sc->tlv_feature_flags & IWN_UCODE_TLV_FLAGS_NEWSCAN)
6937 hdr->crc_threshold = is_active ?
6938 IWN_GOOD_CRC_TH_DEFAULT : IWN_GOOD_CRC_TH_DISABLED;
6939 else
6940 hdr->crc_threshold = is_active ?
6941 IWN_GOOD_CRC_TH_DEFAULT : IWN_GOOD_CRC_TH_NEVER;
6942
6943 chan = (struct iwn_scan_chan *)frm;
6944 chan->chan = htole16(ieee80211_chan2ieee(ic, c));
6945 chan->flags = 0;
6946 if (ss->ss_nssid > 0)
6947 chan->flags |= htole32(IWN_CHAN_NPBREQS(1));
6948 chan->dsp_gain = 0x6e;
6949
6950 /*
6951 * Set the passive/active flag depending upon the channel mode.
6952 * XXX TODO: take the is_active flag into account as well?
6953 */
6954 if (c->ic_flags & IEEE80211_CHAN_PASSIVE)
6955 chan->flags |= htole32(IWN_CHAN_PASSIVE);
6956 else
6957 chan->flags |= htole32(IWN_CHAN_ACTIVE);
6958
6959 /*
6960 * Calculate the active/passive dwell times.
6961 */
6962
6963 dwell_active = iwn_get_active_dwell_time(sc, c, ss->ss_nssid);
6964 dwell_passive = iwn_get_passive_dwell_time(sc, c);
6965
6966 /* Make sure they're valid */
6967 if (dwell_passive <= dwell_active)
6968 dwell_passive = dwell_active + 1;
6969
6970 chan->active = htole16(dwell_active);
6971 chan->passive = htole16(dwell_passive);
6972
6973 if (IEEE80211_IS_CHAN_5GHZ(c))
6974 chan->rf_gain = 0x3b;
6975 else
6976 chan->rf_gain = 0x28;
6977
6978 DPRINTF(sc, IWN_DEBUG_STATE,
6979 "%s: chan %u flags 0x%x rf_gain 0x%x "
6980 "dsp_gain 0x%x active %d passive %d scan_svc_time %d crc 0x%x "
6981 "isactive=%d numssid=%d\n", __func__,
6982 chan->chan, chan->flags, chan->rf_gain, chan->dsp_gain,
6983 dwell_active, dwell_passive, scan_service_time,
6984 hdr->crc_threshold, is_active, ss->ss_nssid);
6985
6986 hdr->nchan++;
6987 chan++;
6988 buflen = (uint8_t *)chan - buf;
6989 hdr->len = htole16(buflen);
6990
6991 if (sc->sc_is_scanning) {
6992 device_printf(sc->sc_dev,
6993 "%s: called with is_scanning set!\n",
6994 __func__);
6995 }
6996 sc->sc_is_scanning = 1;
6997
6998 DPRINTF(sc, IWN_DEBUG_STATE, "sending scan command nchan=%d\n",
6999 hdr->nchan);
7000 error = iwn_cmd(sc, IWN_CMD_SCAN, buf, buflen, 1);
7001 free(buf, M_DEVBUF);
7002 if (error == 0)
7003 callout_reset(&sc->scan_timeout, 5*hz, iwn_scan_timeout, sc);
7004
7005 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
7006
7007 return error;
7008 }
7009
7010 static int
7011 iwn_auth(struct iwn_softc *sc, struct ieee80211vap *vap)
7012 {
7013 struct iwn_ops *ops = &sc->ops;
7014 struct ieee80211com *ic = &sc->sc_ic;
7015 struct ieee80211_node *ni = vap->iv_bss;
7016 int error;
7017
7018 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
7019
7020 sc->rxon = &sc->rx_on[IWN_RXON_BSS_CTX];
7021 /* Update adapter configuration. */
7022 IEEE80211_ADDR_COPY(sc->rxon->bssid, ni->ni_bssid);
7023 sc->rxon->chan = ieee80211_chan2ieee(ic, ni->ni_chan);
7024 sc->rxon->flags = htole32(IWN_RXON_TSF | IWN_RXON_CTS_TO_SELF);
7025 if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan))
7026 sc->rxon->flags |= htole32(IWN_RXON_AUTO | IWN_RXON_24GHZ);
7027 if (ic->ic_flags & IEEE80211_F_SHSLOT)
7028 sc->rxon->flags |= htole32(IWN_RXON_SHSLOT);
7029 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
7030 sc->rxon->flags |= htole32(IWN_RXON_SHPREAMBLE);
7031 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) {
7032 sc->rxon->cck_mask = 0;
7033 sc->rxon->ofdm_mask = 0x15;
7034 } else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) {
7035 sc->rxon->cck_mask = 0x03;
7036 sc->rxon->ofdm_mask = 0;
7037 } else {
7038 /* Assume 802.11b/g. */
7039 sc->rxon->cck_mask = 0x03;
7040 sc->rxon->ofdm_mask = 0x15;
7041 }
7042
7043 /* try HT */
7044 sc->rxon->flags |= htole32(iwn_get_rxon_ht_flags(sc, ic->ic_curchan));
7045
7046 DPRINTF(sc, IWN_DEBUG_STATE, "rxon chan %d flags %x cck %x ofdm %x\n",
7047 sc->rxon->chan, sc->rxon->flags, sc->rxon->cck_mask,
7048 sc->rxon->ofdm_mask);
7049 if (sc->sc_is_scanning)
7050 device_printf(sc->sc_dev,
7051 "%s: is_scanning set, before RXON\n",
7052 __func__);
7053 error = iwn_cmd(sc, IWN_CMD_RXON, sc->rxon, sc->rxonsz, 1);
7054 if (error != 0) {
7055 device_printf(sc->sc_dev, "%s: RXON command failed, error %d\n",
7056 __func__, error);
7057 return error;
7058 }
7059
7060 /* Configuration has changed, set TX power accordingly. */
7061 if ((error = ops->set_txpower(sc, ni->ni_chan, 1)) != 0) {
7062 device_printf(sc->sc_dev,
7063 "%s: could not set TX power, error %d\n", __func__, error);
7064 return error;
7065 }
7066 /*
7067 * Reconfiguring RXON clears the firmware nodes table so we must
7068 * add the broadcast node again.
7069 */
7070 if ((error = iwn_add_broadcast_node(sc, 1)) != 0) {
7071 device_printf(sc->sc_dev,
7072 "%s: could not add broadcast node, error %d\n", __func__,
7073 error);
7074 return error;
7075 }
7076
7077 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
7078
7079 return 0;
7080 }
7081
7082 static int
7083 iwn_run(struct iwn_softc *sc, struct ieee80211vap *vap)
7084 {
7085 struct iwn_ops *ops = &sc->ops;
7086 struct ieee80211com *ic = &sc->sc_ic;
7087 struct ieee80211_node *ni = vap->iv_bss;
7088 struct iwn_node_info node;
7089 int error;
7090
7091 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
7092
7093 sc->rxon = &sc->rx_on[IWN_RXON_BSS_CTX];
7094 if (ic->ic_opmode == IEEE80211_M_MONITOR) {
7095 /* Link LED blinks while monitoring. */
7096 iwn_set_led(sc, IWN_LED_LINK, 5, 5);
7097 return 0;
7098 }
7099 if ((error = iwn_set_timing(sc, ni)) != 0) {
7100 device_printf(sc->sc_dev,
7101 "%s: could not set timing, error %d\n", __func__, error);
7102 return error;
7103 }
7104
7105 /* Update adapter configuration. */
7106 IEEE80211_ADDR_COPY(sc->rxon->bssid, ni->ni_bssid);
7107 sc->rxon->associd = htole16(IEEE80211_AID(ni->ni_associd));
7108 sc->rxon->chan = ieee80211_chan2ieee(ic, ni->ni_chan);
7109 sc->rxon->flags = htole32(IWN_RXON_TSF | IWN_RXON_CTS_TO_SELF);
7110 if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan))
7111 sc->rxon->flags |= htole32(IWN_RXON_AUTO | IWN_RXON_24GHZ);
7112 if (ic->ic_flags & IEEE80211_F_SHSLOT)
7113 sc->rxon->flags |= htole32(IWN_RXON_SHSLOT);
7114 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
7115 sc->rxon->flags |= htole32(IWN_RXON_SHPREAMBLE);
7116 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) {
7117 sc->rxon->cck_mask = 0;
7118 sc->rxon->ofdm_mask = 0x15;
7119 } else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) {
7120 sc->rxon->cck_mask = 0x03;
7121 sc->rxon->ofdm_mask = 0;
7122 } else {
7123 /* Assume 802.11b/g. */
7124 sc->rxon->cck_mask = 0x0f;
7125 sc->rxon->ofdm_mask = 0x15;
7126 }
7127 /* try HT */
7128 sc->rxon->flags |= htole32(iwn_get_rxon_ht_flags(sc, ni->ni_chan));
7129 sc->rxon->filter |= htole32(IWN_FILTER_BSS);
7130 DPRINTF(sc, IWN_DEBUG_STATE, "rxon chan %d flags %x, curhtprotmode=%d\n",
7131 sc->rxon->chan, le32toh(sc->rxon->flags), ic->ic_curhtprotmode);
7132 if (sc->sc_is_scanning)
7133 device_printf(sc->sc_dev,
7134 "%s: is_scanning set, before RXON\n",
7135 __func__);
7136 error = iwn_cmd(sc, IWN_CMD_RXON, sc->rxon, sc->rxonsz, 1);
7137 if (error != 0) {
7138 device_printf(sc->sc_dev,
7139 "%s: could not update configuration, error %d\n", __func__,
7140 error);
7141 return error;
7142 }
7143
7144 /* Configuration has changed, set TX power accordingly. */
7145 if ((error = ops->set_txpower(sc, ni->ni_chan, 1)) != 0) {
7146 device_printf(sc->sc_dev,
7147 "%s: could not set TX power, error %d\n", __func__, error);
7148 return error;
7149 }
7150
7151 /* Fake a join to initialize the TX rate. */
7152 ((struct iwn_node *)ni)->id = IWN_ID_BSS;
7153 iwn_newassoc(ni, 1);
7154
7155 /* Add BSS node. */
7156 memset(&node, 0, sizeof node);
7157 IEEE80211_ADDR_COPY(node.macaddr, ni->ni_macaddr);
7158 node.id = IWN_ID_BSS;
7159 if (IEEE80211_IS_CHAN_HT(ni->ni_chan)) {
7160 switch (ni->ni_htcap & IEEE80211_HTCAP_SMPS) {
7161 case IEEE80211_HTCAP_SMPS_ENA:
7162 node.htflags |= htole32(IWN_SMPS_MIMO_DIS);
7163 break;
7164 case IEEE80211_HTCAP_SMPS_DYNAMIC:
7165 node.htflags |= htole32(IWN_SMPS_MIMO_PROT);
7166 break;
7167 }
7168 node.htflags |= htole32(IWN_AMDPU_SIZE_FACTOR(3) |
7169 IWN_AMDPU_DENSITY(5)); /* 4us */
7170 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan))
7171 node.htflags |= htole32(IWN_NODE_HT40);
7172 }
7173 DPRINTF(sc, IWN_DEBUG_STATE, "%s: adding BSS node\n", __func__);
7174 error = ops->add_node(sc, &node, 1);
7175 if (error != 0) {
7176 device_printf(sc->sc_dev,
7177 "%s: could not add BSS node, error %d\n", __func__, error);
7178 return error;
7179 }
7180 DPRINTF(sc, IWN_DEBUG_STATE, "%s: setting link quality for node %d\n",
7181 __func__, node.id);
7182 if ((error = iwn_set_link_quality(sc, ni)) != 0) {
7183 device_printf(sc->sc_dev,
7184 "%s: could not setup link quality for node %d, error %d\n",
7185 __func__, node.id, error);
7186 return error;
7187 }
7188
7189 if ((error = iwn_init_sensitivity(sc)) != 0) {
7190 device_printf(sc->sc_dev,
7191 "%s: could not set sensitivity, error %d\n", __func__,
7192 error);
7193 return error;
7194 }
7195 /* Start periodic calibration timer. */
7196 sc->calib.state = IWN_CALIB_STATE_ASSOC;
7197 sc->calib_cnt = 0;
7198 callout_reset(&sc->calib_to, msecs_to_ticks(500), iwn_calib_timeout,
7199 sc);
7200
7201 /* Link LED always on while associated. */
7202 iwn_set_led(sc, IWN_LED_LINK, 0, 1);
7203
7204 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
7205
7206 return 0;
7207 }
7208
7209 /*
7210 * This function is called by upper layer when an ADDBA request is received
7211 * from another STA and before the ADDBA response is sent.
7212 */
7213 static int
7214 iwn_ampdu_rx_start(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap,
7215 int baparamset, int batimeout, int baseqctl)
7216 {
7217 #define MS(_v, _f) (((_v) & _f) >> _f##_S)
7218 struct iwn_softc *sc = ni->ni_ic->ic_softc;
7219 struct iwn_ops *ops = &sc->ops;
7220 struct iwn_node *wn = (void *)ni;
7221 struct iwn_node_info node;
7222 uint16_t ssn;
7223 uint8_t tid;
7224 int error;
7225
7226 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
7227
7228 tid = MS(le16toh(baparamset), IEEE80211_BAPS_TID);
7229 ssn = MS(le16toh(baseqctl), IEEE80211_BASEQ_START);
7230
7231 memset(&node, 0, sizeof node);
7232 node.id = wn->id;
7233 node.control = IWN_NODE_UPDATE;
7234 node.flags = IWN_FLAG_SET_ADDBA;
7235 node.addba_tid = tid;
7236 node.addba_ssn = htole16(ssn);
7237 DPRINTF(sc, IWN_DEBUG_RECV, "ADDBA RA=%d TID=%d SSN=%d\n",
7238 wn->id, tid, ssn);
7239 error = ops->add_node(sc, &node, 1);
7240 if (error != 0)
7241 return error;
7242 return sc->sc_ampdu_rx_start(ni, rap, baparamset, batimeout, baseqctl);
7243 #undef MS
7244 }
7245
7246 /*
7247 * This function is called by upper layer on teardown of an HT-immediate
7248 * Block Ack agreement (eg. uppon receipt of a DELBA frame).
7249 */
7250 static void
7251 iwn_ampdu_rx_stop(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap)
7252 {
7253 struct ieee80211com *ic = ni->ni_ic;
7254 struct iwn_softc *sc = ic->ic_softc;
7255 struct iwn_ops *ops = &sc->ops;
7256 struct iwn_node *wn = (void *)ni;
7257 struct iwn_node_info node;
7258 uint8_t tid;
7259
7260 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
7261
7262 /* XXX: tid as an argument */
7263 for (tid = 0; tid < WME_NUM_TID; tid++) {
7264 if (&ni->ni_rx_ampdu[tid] == rap)
7265 break;
7266 }
7267
7268 memset(&node, 0, sizeof node);
7269 node.id = wn->id;
7270 node.control = IWN_NODE_UPDATE;
7271 node.flags = IWN_FLAG_SET_DELBA;
7272 node.delba_tid = tid;
7273 DPRINTF(sc, IWN_DEBUG_RECV, "DELBA RA=%d TID=%d\n", wn->id, tid);
7274 (void)ops->add_node(sc, &node, 1);
7275 sc->sc_ampdu_rx_stop(ni, rap);
7276 }
7277
7278 static int
7279 iwn_addba_request(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap,
7280 int dialogtoken, int baparamset, int batimeout)
7281 {
7282 struct iwn_softc *sc = ni->ni_ic->ic_softc;
7283 int qid;
7284
7285 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
7286
7287 for (qid = sc->firstaggqueue; qid < sc->ntxqs; qid++) {
7288 if (sc->qid2tap[qid] == NULL)
7289 break;
7290 }
7291 if (qid == sc->ntxqs) {
7292 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: not free aggregation queue\n",
7293 __func__);
7294 return 0;
7295 }
7296 tap->txa_private = malloc(sizeof(int), M_DEVBUF, M_NOWAIT);
7297 if (tap->txa_private == NULL) {
7298 device_printf(sc->sc_dev,
7299 "%s: failed to alloc TX aggregation structure\n", __func__);
7300 return 0;
7301 }
7302 sc->qid2tap[qid] = tap;
7303 *(int *)tap->txa_private = qid;
7304 return sc->sc_addba_request(ni, tap, dialogtoken, baparamset,
7305 batimeout);
7306 }
7307
7308 static int
7309 iwn_addba_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap,
7310 int code, int baparamset, int batimeout)
7311 {
7312 struct iwn_softc *sc = ni->ni_ic->ic_softc;
7313 int qid = *(int *)tap->txa_private;
7314 uint8_t tid = tap->txa_tid;
7315 int ret;
7316
7317 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
7318
7319 if (code == IEEE80211_STATUS_SUCCESS) {
7320 ni->ni_txseqs[tid] = tap->txa_start & 0xfff;
7321 ret = iwn_ampdu_tx_start(ni->ni_ic, ni, tid);
7322 if (ret != 1)
7323 return ret;
7324 } else {
7325 sc->qid2tap[qid] = NULL;
7326 free(tap->txa_private, M_DEVBUF);
7327 tap->txa_private = NULL;
7328 }
7329 return sc->sc_addba_response(ni, tap, code, baparamset, batimeout);
7330 }
7331
7332 /*
7333 * This function is called by upper layer when an ADDBA response is received
7334 * from another STA.
7335 */
7336 static int
7337 iwn_ampdu_tx_start(struct ieee80211com *ic, struct ieee80211_node *ni,
7338 uint8_t tid)
7339 {
7340 struct ieee80211_tx_ampdu *tap = &ni->ni_tx_ampdu[tid];
7341 struct iwn_softc *sc = ni->ni_ic->ic_softc;
7342 struct iwn_ops *ops = &sc->ops;
7343 struct iwn_node *wn = (void *)ni;
7344 struct iwn_node_info node;
7345 int error, qid;
7346
7347 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
7348
7349 /* Enable TX for the specified RA/TID. */
7350 wn->disable_tid &= ~(1 << tid);
7351 memset(&node, 0, sizeof node);
7352 node.id = wn->id;
7353 node.control = IWN_NODE_UPDATE;
7354 node.flags = IWN_FLAG_SET_DISABLE_TID;
7355 node.disable_tid = htole16(wn->disable_tid);
7356 error = ops->add_node(sc, &node, 1);
7357 if (error != 0)
7358 return 0;
7359
7360 if ((error = iwn_nic_lock(sc)) != 0)
7361 return 0;
7362 qid = *(int *)tap->txa_private;
7363 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: ra=%d tid=%d ssn=%d qid=%d\n",
7364 __func__, wn->id, tid, tap->txa_start, qid);
7365 ops->ampdu_tx_start(sc, ni, qid, tid, tap->txa_start & 0xfff);
7366 iwn_nic_unlock(sc);
7367
7368 iwn_set_link_quality(sc, ni);
7369 return 1;
7370 }
7371
7372 static void
7373 iwn_ampdu_tx_stop(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap)
7374 {
7375 struct iwn_softc *sc = ni->ni_ic->ic_softc;
7376 struct iwn_ops *ops = &sc->ops;
7377 uint8_t tid = tap->txa_tid;
7378 int qid;
7379
7380 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
7381
7382 sc->sc_addba_stop(ni, tap);
7383
7384 if (tap->txa_private == NULL)
7385 return;
7386
7387 qid = *(int *)tap->txa_private;
7388 if (sc->txq[qid].queued != 0)
7389 return;
7390 if (iwn_nic_lock(sc) != 0)
7391 return;
7392 ops->ampdu_tx_stop(sc, qid, tid, tap->txa_start & 0xfff);
7393 iwn_nic_unlock(sc);
7394 sc->qid2tap[qid] = NULL;
7395 free(tap->txa_private, M_DEVBUF);
7396 tap->txa_private = NULL;
7397 }
7398
7399 static void
7400 iwn4965_ampdu_tx_start(struct iwn_softc *sc, struct ieee80211_node *ni,
7401 int qid, uint8_t tid, uint16_t ssn)
7402 {
7403 struct iwn_node *wn = (void *)ni;
7404
7405 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
7406
7407 /* Stop TX scheduler while we're changing its configuration. */
7408 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid),
7409 IWN4965_TXQ_STATUS_CHGACT);
7410
7411 /* Assign RA/TID translation to the queue. */
7412 iwn_mem_write_2(sc, sc->sched_base + IWN4965_SCHED_TRANS_TBL(qid),
7413 wn->id << 4 | tid);
7414
7415 /* Enable chain-building mode for the queue. */
7416 iwn_prph_setbits(sc, IWN4965_SCHED_QCHAIN_SEL, 1 << qid);
7417
7418 /* Set starting sequence number from the ADDBA request. */
7419 sc->txq[qid].cur = sc->txq[qid].read = (ssn & 0xff);
7420 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | (ssn & 0xff));
7421 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_RDPTR(qid), ssn);
7422
7423 /* Set scheduler window size. */
7424 iwn_mem_write(sc, sc->sched_base + IWN4965_SCHED_QUEUE_OFFSET(qid),
7425 IWN_SCHED_WINSZ);
7426 /* Set scheduler frame limit. */
7427 iwn_mem_write(sc, sc->sched_base + IWN4965_SCHED_QUEUE_OFFSET(qid) + 4,
7428 IWN_SCHED_LIMIT << 16);
7429
7430 /* Enable interrupts for the queue. */
7431 iwn_prph_setbits(sc, IWN4965_SCHED_INTR_MASK, 1 << qid);
7432
7433 /* Mark the queue as active. */
7434 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid),
7435 IWN4965_TXQ_STATUS_ACTIVE | IWN4965_TXQ_STATUS_AGGR_ENA |
7436 iwn_tid2fifo[tid] << 1);
7437 }
7438
7439 static void
7440 iwn4965_ampdu_tx_stop(struct iwn_softc *sc, int qid, uint8_t tid, uint16_t ssn)
7441 {
7442 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
7443
7444 /* Stop TX scheduler while we're changing its configuration. */
7445 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid),
7446 IWN4965_TXQ_STATUS_CHGACT);
7447
7448 /* Set starting sequence number from the ADDBA request. */
7449 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | (ssn & 0xff));
7450 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_RDPTR(qid), ssn);
7451
7452 /* Disable interrupts for the queue. */
7453 iwn_prph_clrbits(sc, IWN4965_SCHED_INTR_MASK, 1 << qid);
7454
7455 /* Mark the queue as inactive. */
7456 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid),
7457 IWN4965_TXQ_STATUS_INACTIVE | iwn_tid2fifo[tid] << 1);
7458 }
7459
7460 static void
7461 iwn5000_ampdu_tx_start(struct iwn_softc *sc, struct ieee80211_node *ni,
7462 int qid, uint8_t tid, uint16_t ssn)
7463 {
7464 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
7465
7466 struct iwn_node *wn = (void *)ni;
7467
7468 /* Stop TX scheduler while we're changing its configuration. */
7469 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid),
7470 IWN5000_TXQ_STATUS_CHGACT);
7471
7472 /* Assign RA/TID translation to the queue. */
7473 iwn_mem_write_2(sc, sc->sched_base + IWN5000_SCHED_TRANS_TBL(qid),
7474 wn->id << 4 | tid);
7475
7476 /* Enable chain-building mode for the queue. */
7477 iwn_prph_setbits(sc, IWN5000_SCHED_QCHAIN_SEL, 1 << qid);
7478
7479 /* Enable aggregation for the queue. */
7480 iwn_prph_setbits(sc, IWN5000_SCHED_AGGR_SEL, 1 << qid);
7481
7482 /* Set starting sequence number from the ADDBA request. */
7483 sc->txq[qid].cur = sc->txq[qid].read = (ssn & 0xff);
7484 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | (ssn & 0xff));
7485 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_RDPTR(qid), ssn);
7486
7487 /* Set scheduler window size and frame limit. */
7488 iwn_mem_write(sc, sc->sched_base + IWN5000_SCHED_QUEUE_OFFSET(qid) + 4,
7489 IWN_SCHED_LIMIT << 16 | IWN_SCHED_WINSZ);
7490
7491 /* Enable interrupts for the queue. */
7492 iwn_prph_setbits(sc, IWN5000_SCHED_INTR_MASK, 1 << qid);
7493
7494 /* Mark the queue as active. */
7495 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid),
7496 IWN5000_TXQ_STATUS_ACTIVE | iwn_tid2fifo[tid]);
7497 }
7498
7499 static void
7500 iwn5000_ampdu_tx_stop(struct iwn_softc *sc, int qid, uint8_t tid, uint16_t ssn)
7501 {
7502 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
7503
7504 /* Stop TX scheduler while we're changing its configuration. */
7505 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid),
7506 IWN5000_TXQ_STATUS_CHGACT);
7507
7508 /* Disable aggregation for the queue. */
7509 iwn_prph_clrbits(sc, IWN5000_SCHED_AGGR_SEL, 1 << qid);
7510
7511 /* Set starting sequence number from the ADDBA request. */
7512 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | (ssn & 0xff));
7513 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_RDPTR(qid), ssn);
7514
7515 /* Disable interrupts for the queue. */
7516 iwn_prph_clrbits(sc, IWN5000_SCHED_INTR_MASK, 1 << qid);
7517
7518 /* Mark the queue as inactive. */
7519 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid),
7520 IWN5000_TXQ_STATUS_INACTIVE | iwn_tid2fifo[tid]);
7521 }
7522
7523 /*
7524 * Query calibration tables from the initialization firmware. We do this
7525 * only once at first boot. Called from a process context.
7526 */
7527 static int
7528 iwn5000_query_calibration(struct iwn_softc *sc)
7529 {
7530 struct iwn5000_calib_config cmd;
7531 int error;
7532
7533 memset(&cmd, 0, sizeof cmd);
7534 cmd.ucode.once.enable = htole32(0xffffffff);
7535 cmd.ucode.once.start = htole32(0xffffffff);
7536 cmd.ucode.once.send = htole32(0xffffffff);
7537 cmd.ucode.flags = htole32(0xffffffff);
7538 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: sending calibration query\n",
7539 __func__);
7540 error = iwn_cmd(sc, IWN5000_CMD_CALIB_CONFIG, &cmd, sizeof cmd, 0);
7541 if (error != 0)
7542 return error;
7543
7544 /* Wait at most two seconds for calibration to complete. */
7545 if (!(sc->sc_flags & IWN_FLAG_CALIB_DONE))
7546 error = msleep(sc, &sc->sc_mtx, PCATCH, "iwncal", 2 * hz);
7547 return error;
7548 }
7549
7550 /*
7551 * Send calibration results to the runtime firmware. These results were
7552 * obtained on first boot from the initialization firmware.
7553 */
7554 static int
7555 iwn5000_send_calibration(struct iwn_softc *sc)
7556 {
7557 int idx, error;
7558
7559 for (idx = 0; idx < IWN5000_PHY_CALIB_MAX_RESULT; idx++) {
7560 if (!(sc->base_params->calib_need & (1<<idx))) {
7561 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
7562 "No need of calib %d\n",
7563 idx);
7564 continue; /* no need for this calib */
7565 }
7566 if (sc->calibcmd[idx].buf == NULL) {
7567 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
7568 "Need calib idx : %d but no available data\n",
7569 idx);
7570 continue;
7571 }
7572
7573 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
7574 "send calibration result idx=%d len=%d\n", idx,
7575 sc->calibcmd[idx].len);
7576 error = iwn_cmd(sc, IWN_CMD_PHY_CALIB, sc->calibcmd[idx].buf,
7577 sc->calibcmd[idx].len, 0);
7578 if (error != 0) {
7579 device_printf(sc->sc_dev,
7580 "%s: could not send calibration result, error %d\n",
7581 __func__, error);
7582 return error;
7583 }
7584 }
7585 return 0;
7586 }
7587
7588 static int
7589 iwn5000_send_wimax_coex(struct iwn_softc *sc)
7590 {
7591 struct iwn5000_wimax_coex wimax;
7592
7593 #if 0
7594 if (sc->hw_type == IWN_HW_REV_TYPE_6050) {
7595 /* Enable WiMAX coexistence for combo adapters. */
7596 wimax.flags =
7597 IWN_WIMAX_COEX_ASSOC_WA_UNMASK |
7598 IWN_WIMAX_COEX_UNASSOC_WA_UNMASK |
7599 IWN_WIMAX_COEX_STA_TABLE_VALID |
7600 IWN_WIMAX_COEX_ENABLE;
7601 memcpy(wimax.events, iwn6050_wimax_events,
7602 sizeof iwn6050_wimax_events);
7603 } else
7604 #endif
7605 {
7606 /* Disable WiMAX coexistence. */
7607 wimax.flags = 0;
7608 memset(wimax.events, 0, sizeof wimax.events);
7609 }
7610 DPRINTF(sc, IWN_DEBUG_RESET, "%s: Configuring WiMAX coexistence\n",
7611 __func__);
7612 return iwn_cmd(sc, IWN5000_CMD_WIMAX_COEX, &wimax, sizeof wimax, 0);
7613 }
7614
7615 static int
7616 iwn5000_crystal_calib(struct iwn_softc *sc)
7617 {
7618 struct iwn5000_phy_calib_crystal cmd;
7619
7620 memset(&cmd, 0, sizeof cmd);
7621 cmd.code = IWN5000_PHY_CALIB_CRYSTAL;
7622 cmd.ngroups = 1;
7623 cmd.isvalid = 1;
7624 cmd.cap_pin[0] = le32toh(sc->eeprom_crystal) & 0xff;
7625 cmd.cap_pin[1] = (le32toh(sc->eeprom_crystal) >> 16) & 0xff;
7626 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "sending crystal calibration %d, %d\n",
7627 cmd.cap_pin[0], cmd.cap_pin[1]);
7628 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 0);
7629 }
7630
7631 static int
7632 iwn5000_temp_offset_calib(struct iwn_softc *sc)
7633 {
7634 struct iwn5000_phy_calib_temp_offset cmd;
7635
7636 memset(&cmd, 0, sizeof cmd);
7637 cmd.code = IWN5000_PHY_CALIB_TEMP_OFFSET;
7638 cmd.ngroups = 1;
7639 cmd.isvalid = 1;
7640 if (sc->eeprom_temp != 0)
7641 cmd.offset = htole16(sc->eeprom_temp);
7642 else
7643 cmd.offset = htole16(IWN_DEFAULT_TEMP_OFFSET);
7644 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "setting radio sensor offset to %d\n",
7645 le16toh(cmd.offset));
7646 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 0);
7647 }
7648
7649 static int
7650 iwn5000_temp_offset_calibv2(struct iwn_softc *sc)
7651 {
7652 struct iwn5000_phy_calib_temp_offsetv2 cmd;
7653
7654 memset(&cmd, 0, sizeof cmd);
7655 cmd.code = IWN5000_PHY_CALIB_TEMP_OFFSET;
7656 cmd.ngroups = 1;
7657 cmd.isvalid = 1;
7658 if (sc->eeprom_temp != 0) {
7659 cmd.offset_low = htole16(sc->eeprom_temp);
7660 cmd.offset_high = htole16(sc->eeprom_temp_high);
7661 } else {
7662 cmd.offset_low = htole16(IWN_DEFAULT_TEMP_OFFSET);
7663 cmd.offset_high = htole16(IWN_DEFAULT_TEMP_OFFSET);
7664 }
7665 cmd.burnt_voltage_ref = htole16(sc->eeprom_voltage);
7666
7667 DPRINTF(sc, IWN_DEBUG_CALIBRATE,
7668 "setting radio sensor low offset to %d, high offset to %d, voltage to %d\n",
7669 le16toh(cmd.offset_low),
7670 le16toh(cmd.offset_high),
7671 le16toh(cmd.burnt_voltage_ref));
7672
7673 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 0);
7674 }
7675
7676 /*
7677 * This function is called after the runtime firmware notifies us of its
7678 * readiness (called in a process context).
7679 */
7680 static int
7681 iwn4965_post_alive(struct iwn_softc *sc)
7682 {
7683 int error, qid;
7684
7685 if ((error = iwn_nic_lock(sc)) != 0)
7686 return error;
7687
7688 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
7689
7690 /* Clear TX scheduler state in SRAM. */
7691 sc->sched_base = iwn_prph_read(sc, IWN_SCHED_SRAM_ADDR);
7692 iwn_mem_set_region_4(sc, sc->sched_base + IWN4965_SCHED_CTX_OFF, 0,
7693 IWN4965_SCHED_CTX_LEN / sizeof (uint32_t));
7694
7695 /* Set physical address of TX scheduler rings (1KB aligned). */
7696 iwn_prph_write(sc, IWN4965_SCHED_DRAM_ADDR, sc->sched_dma.paddr >> 10);
7697
7698 IWN_SETBITS(sc, IWN_FH_TX_CHICKEN, IWN_FH_TX_CHICKEN_SCHED_RETRY);
7699
7700 /* Disable chain mode for all our 16 queues. */
7701 iwn_prph_write(sc, IWN4965_SCHED_QCHAIN_SEL, 0);
7702
7703 for (qid = 0; qid < IWN4965_NTXQUEUES; qid++) {
7704 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_RDPTR(qid), 0);
7705 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | 0);
7706
7707 /* Set scheduler window size. */
7708 iwn_mem_write(sc, sc->sched_base +
7709 IWN4965_SCHED_QUEUE_OFFSET(qid), IWN_SCHED_WINSZ);
7710 /* Set scheduler frame limit. */
7711 iwn_mem_write(sc, sc->sched_base +
7712 IWN4965_SCHED_QUEUE_OFFSET(qid) + 4,
7713 IWN_SCHED_LIMIT << 16);
7714 }
7715
7716 /* Enable interrupts for all our 16 queues. */
7717 iwn_prph_write(sc, IWN4965_SCHED_INTR_MASK, 0xffff);
7718 /* Identify TX FIFO rings (0-7). */
7719 iwn_prph_write(sc, IWN4965_SCHED_TXFACT, 0xff);
7720
7721 /* Mark TX rings (4 EDCA + cmd + 2 HCCA) as active. */
7722 for (qid = 0; qid < 7; qid++) {
7723 static uint8_t qid2fifo[] = { 3, 2, 1, 0, 4, 5, 6 };
7724 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid),
7725 IWN4965_TXQ_STATUS_ACTIVE | qid2fifo[qid] << 1);
7726 }
7727 iwn_nic_unlock(sc);
7728 return 0;
7729 }
7730
7731 /*
7732 * This function is called after the initialization or runtime firmware
7733 * notifies us of its readiness (called in a process context).
7734 */
7735 static int
7736 iwn5000_post_alive(struct iwn_softc *sc)
7737 {
7738 int error, qid;
7739
7740 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
7741
7742 /* Switch to using ICT interrupt mode. */
7743 iwn5000_ict_reset(sc);
7744
7745 if ((error = iwn_nic_lock(sc)) != 0){
7746 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end in error\n", __func__);
7747 return error;
7748 }
7749
7750 /* Clear TX scheduler state in SRAM. */
7751 sc->sched_base = iwn_prph_read(sc, IWN_SCHED_SRAM_ADDR);
7752 iwn_mem_set_region_4(sc, sc->sched_base + IWN5000_SCHED_CTX_OFF, 0,
7753 IWN5000_SCHED_CTX_LEN / sizeof (uint32_t));
7754
7755 /* Set physical address of TX scheduler rings (1KB aligned). */
7756 iwn_prph_write(sc, IWN5000_SCHED_DRAM_ADDR, sc->sched_dma.paddr >> 10);
7757
7758 IWN_SETBITS(sc, IWN_FH_TX_CHICKEN, IWN_FH_TX_CHICKEN_SCHED_RETRY);
7759
7760 /* Enable chain mode for all queues, except command queue. */
7761 if (sc->sc_flags & IWN_FLAG_PAN_SUPPORT)
7762 iwn_prph_write(sc, IWN5000_SCHED_QCHAIN_SEL, 0xfffdf);
7763 else
7764 iwn_prph_write(sc, IWN5000_SCHED_QCHAIN_SEL, 0xfffef);
7765 iwn_prph_write(sc, IWN5000_SCHED_AGGR_SEL, 0);
7766
7767 for (qid = 0; qid < IWN5000_NTXQUEUES; qid++) {
7768 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_RDPTR(qid), 0);
7769 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | 0);
7770
7771 iwn_mem_write(sc, sc->sched_base +
7772 IWN5000_SCHED_QUEUE_OFFSET(qid), 0);
7773 /* Set scheduler window size and frame limit. */
7774 iwn_mem_write(sc, sc->sched_base +
7775 IWN5000_SCHED_QUEUE_OFFSET(qid) + 4,
7776 IWN_SCHED_LIMIT << 16 | IWN_SCHED_WINSZ);
7777 }
7778
7779 /* Enable interrupts for all our 20 queues. */
7780 iwn_prph_write(sc, IWN5000_SCHED_INTR_MASK, 0xfffff);
7781 /* Identify TX FIFO rings (0-7). */
7782 iwn_prph_write(sc, IWN5000_SCHED_TXFACT, 0xff);
7783
7784 /* Mark TX rings (4 EDCA + cmd + 2 HCCA) as active. */
7785 if (sc->sc_flags & IWN_FLAG_PAN_SUPPORT) {
7786 /* Mark TX rings as active. */
7787 for (qid = 0; qid < 11; qid++) {
7788 static uint8_t qid2fifo[] = { 3, 2, 1, 0, 0, 4, 2, 5, 4, 7, 5 };
7789 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid),
7790 IWN5000_TXQ_STATUS_ACTIVE | qid2fifo[qid]);
7791 }
7792 } else {
7793 /* Mark TX rings (4 EDCA + cmd + 2 HCCA) as active. */
7794 for (qid = 0; qid < 7; qid++) {
7795 static uint8_t qid2fifo[] = { 3, 2, 1, 0, 7, 5, 6 };
7796 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid),
7797 IWN5000_TXQ_STATUS_ACTIVE | qid2fifo[qid]);
7798 }
7799 }
7800 iwn_nic_unlock(sc);
7801
7802 /* Configure WiMAX coexistence for combo adapters. */
7803 error = iwn5000_send_wimax_coex(sc);
7804 if (error != 0) {
7805 device_printf(sc->sc_dev,
7806 "%s: could not configure WiMAX coexistence, error %d\n",
7807 __func__, error);
7808 return error;
7809 }
7810 if (sc->hw_type != IWN_HW_REV_TYPE_5150) {
7811 /* Perform crystal calibration. */
7812 error = iwn5000_crystal_calib(sc);
7813 if (error != 0) {
7814 device_printf(sc->sc_dev,
7815 "%s: crystal calibration failed, error %d\n",
7816 __func__, error);
7817 return error;
7818 }
7819 }
7820 if (!(sc->sc_flags & IWN_FLAG_CALIB_DONE)) {
7821 /* Query calibration from the initialization firmware. */
7822 if ((error = iwn5000_query_calibration(sc)) != 0) {
7823 device_printf(sc->sc_dev,
7824 "%s: could not query calibration, error %d\n",
7825 __func__, error);
7826 return error;
7827 }
7828 /*
7829 * We have the calibration results now, reboot with the
7830 * runtime firmware (call ourselves recursively!)
7831 */
7832 iwn_hw_stop(sc);
7833 error = iwn_hw_init(sc);
7834 } else {
7835 /* Send calibration results to runtime firmware. */
7836 error = iwn5000_send_calibration(sc);
7837 }
7838
7839 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
7840
7841 return error;
7842 }
7843
7844 /*
7845 * The firmware boot code is small and is intended to be copied directly into
7846 * the NIC internal memory (no DMA transfer).
7847 */
7848 static int
7849 iwn4965_load_bootcode(struct iwn_softc *sc, const uint8_t *ucode, int size)
7850 {
7851 int error, ntries;
7852
7853 size /= sizeof (uint32_t);
7854
7855 if ((error = iwn_nic_lock(sc)) != 0)
7856 return error;
7857
7858 /* Copy microcode image into NIC memory. */
7859 iwn_prph_write_region_4(sc, IWN_BSM_SRAM_BASE,
7860 (const uint32_t *)ucode, size);
7861
7862 iwn_prph_write(sc, IWN_BSM_WR_MEM_SRC, 0);
7863 iwn_prph_write(sc, IWN_BSM_WR_MEM_DST, IWN_FW_TEXT_BASE);
7864 iwn_prph_write(sc, IWN_BSM_WR_DWCOUNT, size);
7865
7866 /* Start boot load now. */
7867 iwn_prph_write(sc, IWN_BSM_WR_CTRL, IWN_BSM_WR_CTRL_START);
7868
7869 /* Wait for transfer to complete. */
7870 for (ntries = 0; ntries < 1000; ntries++) {
7871 if (!(iwn_prph_read(sc, IWN_BSM_WR_CTRL) &
7872 IWN_BSM_WR_CTRL_START))
7873 break;
7874 DELAY(10);
7875 }
7876 if (ntries == 1000) {
7877 device_printf(sc->sc_dev, "%s: could not load boot firmware\n",
7878 __func__);
7879 iwn_nic_unlock(sc);
7880 return ETIMEDOUT;
7881 }
7882
7883 /* Enable boot after power up. */
7884 iwn_prph_write(sc, IWN_BSM_WR_CTRL, IWN_BSM_WR_CTRL_START_EN);
7885
7886 iwn_nic_unlock(sc);
7887 return 0;
7888 }
7889
7890 static int
7891 iwn4965_load_firmware(struct iwn_softc *sc)
7892 {
7893 struct iwn_fw_info *fw = &sc->fw;
7894 struct iwn_dma_info *dma = &sc->fw_dma;
7895 int error;
7896
7897 /* Copy initialization sections into pre-allocated DMA-safe memory. */
7898 memcpy(dma->vaddr, fw->init.data, fw->init.datasz);
7899 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
7900 memcpy(dma->vaddr + IWN4965_FW_DATA_MAXSZ,
7901 fw->init.text, fw->init.textsz);
7902 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
7903
7904 /* Tell adapter where to find initialization sections. */
7905 if ((error = iwn_nic_lock(sc)) != 0)
7906 return error;
7907 iwn_prph_write(sc, IWN_BSM_DRAM_DATA_ADDR, dma->paddr >> 4);
7908 iwn_prph_write(sc, IWN_BSM_DRAM_DATA_SIZE, fw->init.datasz);
7909 iwn_prph_write(sc, IWN_BSM_DRAM_TEXT_ADDR,
7910 (dma->paddr + IWN4965_FW_DATA_MAXSZ) >> 4);
7911 iwn_prph_write(sc, IWN_BSM_DRAM_TEXT_SIZE, fw->init.textsz);
7912 iwn_nic_unlock(sc);
7913
7914 /* Load firmware boot code. */
7915 error = iwn4965_load_bootcode(sc, fw->boot.text, fw->boot.textsz);
7916 if (error != 0) {
7917 device_printf(sc->sc_dev, "%s: could not load boot firmware\n",
7918 __func__);
7919 return error;
7920 }
7921 /* Now press "execute". */
7922 IWN_WRITE(sc, IWN_RESET, 0);
7923
7924 /* Wait at most one second for first alive notification. */
7925 if ((error = msleep(sc, &sc->sc_mtx, PCATCH, "iwninit", hz)) != 0) {
7926 device_printf(sc->sc_dev,
7927 "%s: timeout waiting for adapter to initialize, error %d\n",
7928 __func__, error);
7929 return error;
7930 }
7931
7932 /* Retrieve current temperature for initial TX power calibration. */
7933 sc->rawtemp = sc->ucode_info.temp[3].chan20MHz;
7934 sc->temp = iwn4965_get_temperature(sc);
7935
7936 /* Copy runtime sections into pre-allocated DMA-safe memory. */
7937 memcpy(dma->vaddr, fw->main.data, fw->main.datasz);
7938 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
7939 memcpy(dma->vaddr + IWN4965_FW_DATA_MAXSZ,
7940 fw->main.text, fw->main.textsz);
7941 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
7942
7943 /* Tell adapter where to find runtime sections. */
7944 if ((error = iwn_nic_lock(sc)) != 0)
7945 return error;
7946 iwn_prph_write(sc, IWN_BSM_DRAM_DATA_ADDR, dma->paddr >> 4);
7947 iwn_prph_write(sc, IWN_BSM_DRAM_DATA_SIZE, fw->main.datasz);
7948 iwn_prph_write(sc, IWN_BSM_DRAM_TEXT_ADDR,
7949 (dma->paddr + IWN4965_FW_DATA_MAXSZ) >> 4);
7950 iwn_prph_write(sc, IWN_BSM_DRAM_TEXT_SIZE,
7951 IWN_FW_UPDATED | fw->main.textsz);
7952 iwn_nic_unlock(sc);
7953
7954 return 0;
7955 }
7956
7957 static int
7958 iwn5000_load_firmware_section(struct iwn_softc *sc, uint32_t dst,
7959 const uint8_t *section, int size)
7960 {
7961 struct iwn_dma_info *dma = &sc->fw_dma;
7962 int error;
7963
7964 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
7965
7966 /* Copy firmware section into pre-allocated DMA-safe memory. */
7967 memcpy(dma->vaddr, section, size);
7968 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
7969
7970 if ((error = iwn_nic_lock(sc)) != 0)
7971 return error;
7972
7973 IWN_WRITE(sc, IWN_FH_TX_CONFIG(IWN_SRVC_DMACHNL),
7974 IWN_FH_TX_CONFIG_DMA_PAUSE);
7975
7976 IWN_WRITE(sc, IWN_FH_SRAM_ADDR(IWN_SRVC_DMACHNL), dst);
7977 IWN_WRITE(sc, IWN_FH_TFBD_CTRL0(IWN_SRVC_DMACHNL),
7978 IWN_LOADDR(dma->paddr));
7979 IWN_WRITE(sc, IWN_FH_TFBD_CTRL1(IWN_SRVC_DMACHNL),
7980 IWN_HIADDR(dma->paddr) << 28 | size);
7981 IWN_WRITE(sc, IWN_FH_TXBUF_STATUS(IWN_SRVC_DMACHNL),
7982 IWN_FH_TXBUF_STATUS_TBNUM(1) |
7983 IWN_FH_TXBUF_STATUS_TBIDX(1) |
7984 IWN_FH_TXBUF_STATUS_TFBD_VALID);
7985
7986 /* Kick Flow Handler to start DMA transfer. */
7987 IWN_WRITE(sc, IWN_FH_TX_CONFIG(IWN_SRVC_DMACHNL),
7988 IWN_FH_TX_CONFIG_DMA_ENA | IWN_FH_TX_CONFIG_CIRQ_HOST_ENDTFD);
7989
7990 iwn_nic_unlock(sc);
7991
7992 /* Wait at most five seconds for FH DMA transfer to complete. */
7993 return msleep(sc, &sc->sc_mtx, PCATCH, "iwninit", 5 * hz);
7994 }
7995
7996 static int
7997 iwn5000_load_firmware(struct iwn_softc *sc)
7998 {
7999 struct iwn_fw_part *fw;
8000 int error;
8001
8002 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
8003
8004 /* Load the initialization firmware on first boot only. */
8005 fw = (sc->sc_flags & IWN_FLAG_CALIB_DONE) ?
8006 &sc->fw.main : &sc->fw.init;
8007
8008 error = iwn5000_load_firmware_section(sc, IWN_FW_TEXT_BASE,
8009 fw->text, fw->textsz);
8010 if (error != 0) {
8011 device_printf(sc->sc_dev,
8012 "%s: could not load firmware %s section, error %d\n",
8013 __func__, ".text", error);
8014 return error;
8015 }
8016 error = iwn5000_load_firmware_section(sc, IWN_FW_DATA_BASE,
8017 fw->data, fw->datasz);
8018 if (error != 0) {
8019 device_printf(sc->sc_dev,
8020 "%s: could not load firmware %s section, error %d\n",
8021 __func__, ".data", error);
8022 return error;
8023 }
8024
8025 /* Now press "execute". */
8026 IWN_WRITE(sc, IWN_RESET, 0);
8027 return 0;
8028 }
8029
8030 /*
8031 * Extract text and data sections from a legacy firmware image.
8032 */
8033 static int
8034 iwn_read_firmware_leg(struct iwn_softc *sc, struct iwn_fw_info *fw)
8035 {
8036 const uint32_t *ptr;
8037 size_t hdrlen = 24;
8038 uint32_t rev;
8039
8040 ptr = (const uint32_t *)fw->data;
8041 rev = le32toh(*ptr++);
8042
8043 sc->ucode_rev = rev;
8044
8045 /* Check firmware API version. */
8046 if (IWN_FW_API(rev) <= 1) {
8047 device_printf(sc->sc_dev,
8048 "%s: bad firmware, need API version >=2\n", __func__);
8049 return EINVAL;
8050 }
8051 if (IWN_FW_API(rev) >= 3) {
8052 /* Skip build number (version 2 header). */
8053 hdrlen += 4;
8054 ptr++;
8055 }
8056 if (fw->size < hdrlen) {
8057 device_printf(sc->sc_dev, "%s: firmware too short: %zu bytes\n",
8058 __func__, fw->size);
8059 return EINVAL;
8060 }
8061 fw->main.textsz = le32toh(*ptr++);
8062 fw->main.datasz = le32toh(*ptr++);
8063 fw->init.textsz = le32toh(*ptr++);
8064 fw->init.datasz = le32toh(*ptr++);
8065 fw->boot.textsz = le32toh(*ptr++);
8066
8067 /* Check that all firmware sections fit. */
8068 if (fw->size < hdrlen + fw->main.textsz + fw->main.datasz +
8069 fw->init.textsz + fw->init.datasz + fw->boot.textsz) {
8070 device_printf(sc->sc_dev, "%s: firmware too short: %zu bytes\n",
8071 __func__, fw->size);
8072 return EINVAL;
8073 }
8074
8075 /* Get pointers to firmware sections. */
8076 fw->main.text = (const uint8_t *)ptr;
8077 fw->main.data = fw->main.text + fw->main.textsz;
8078 fw->init.text = fw->main.data + fw->main.datasz;
8079 fw->init.data = fw->init.text + fw->init.textsz;
8080 fw->boot.text = fw->init.data + fw->init.datasz;
8081 return 0;
8082 }
8083
8084 /*
8085 * Extract text and data sections from a TLV firmware image.
8086 */
8087 static int
8088 iwn_read_firmware_tlv(struct iwn_softc *sc, struct iwn_fw_info *fw,
8089 uint16_t alt)
8090 {
8091 const struct iwn_fw_tlv_hdr *hdr;
8092 const struct iwn_fw_tlv *tlv;
8093 const uint8_t *ptr, *end;
8094 uint64_t altmask;
8095 uint32_t len, tmp;
8096
8097 if (fw->size < sizeof (*hdr)) {
8098 device_printf(sc->sc_dev, "%s: firmware too short: %zu bytes\n",
8099 __func__, fw->size);
8100 return EINVAL;
8101 }
8102 hdr = (const struct iwn_fw_tlv_hdr *)fw->data;
8103 if (hdr->signature != htole32(IWN_FW_SIGNATURE)) {
8104 device_printf(sc->sc_dev, "%s: bad firmware signature 0x%08x\n",
8105 __func__, le32toh(hdr->signature));
8106 return EINVAL;
8107 }
8108 DPRINTF(sc, IWN_DEBUG_RESET, "FW: \"%.64s\", build 0x%x\n", hdr->descr,
8109 le32toh(hdr->build));
8110 sc->ucode_rev = le32toh(hdr->rev);
8111
8112 /*
8113 * Select the closest supported alternative that is less than
8114 * or equal to the specified one.
8115 */
8116 altmask = le64toh(hdr->altmask);
8117 while (alt > 0 && !(altmask & (1ULL << alt)))
8118 alt--; /* Downgrade. */
8119 DPRINTF(sc, IWN_DEBUG_RESET, "using alternative %d\n", alt);
8120
8121 ptr = (const uint8_t *)(hdr + 1);
8122 end = (const uint8_t *)(fw->data + fw->size);
8123
8124 /* Parse type-length-value fields. */
8125 while (ptr + sizeof (*tlv) <= end) {
8126 tlv = (const struct iwn_fw_tlv *)ptr;
8127 len = le32toh(tlv->len);
8128
8129 ptr += sizeof (*tlv);
8130 if (ptr + len > end) {
8131 device_printf(sc->sc_dev,
8132 "%s: firmware too short: %zu bytes\n", __func__,
8133 fw->size);
8134 return EINVAL;
8135 }
8136 /* Skip other alternatives. */
8137 if (tlv->alt != 0 && tlv->alt != htole16(alt))
8138 goto next;
8139
8140 switch (le16toh(tlv->type)) {
8141 case IWN_FW_TLV_MAIN_TEXT:
8142 fw->main.text = ptr;
8143 fw->main.textsz = len;
8144 break;
8145 case IWN_FW_TLV_MAIN_DATA:
8146 fw->main.data = ptr;
8147 fw->main.datasz = len;
8148 break;
8149 case IWN_FW_TLV_INIT_TEXT:
8150 fw->init.text = ptr;
8151 fw->init.textsz = len;
8152 break;
8153 case IWN_FW_TLV_INIT_DATA:
8154 fw->init.data = ptr;
8155 fw->init.datasz = len;
8156 break;
8157 case IWN_FW_TLV_BOOT_TEXT:
8158 fw->boot.text = ptr;
8159 fw->boot.textsz = len;
8160 break;
8161 case IWN_FW_TLV_ENH_SENS:
8162 if (!len)
8163 sc->sc_flags |= IWN_FLAG_ENH_SENS;
8164 break;
8165 case IWN_FW_TLV_PHY_CALIB:
8166 tmp = le32toh(*ptr);
8167 if (tmp < 253) {
8168 sc->reset_noise_gain = tmp;
8169 sc->noise_gain = tmp + 1;
8170 }
8171 break;
8172 case IWN_FW_TLV_PAN:
8173 sc->sc_flags |= IWN_FLAG_PAN_SUPPORT;
8174 DPRINTF(sc, IWN_DEBUG_RESET,
8175 "PAN Support found: %d\n", 1);
8176 break;
8177 case IWN_FW_TLV_FLAGS:
8178 if (len < sizeof(uint32_t))
8179 break;
8180 if (len % sizeof(uint32_t))
8181 break;
8182 sc->tlv_feature_flags = le32toh(*ptr);
8183 DPRINTF(sc, IWN_DEBUG_RESET,
8184 "%s: feature: 0x%08x\n",
8185 __func__,
8186 sc->tlv_feature_flags);
8187 break;
8188 case IWN_FW_TLV_PBREQ_MAXLEN:
8189 case IWN_FW_TLV_RUNT_EVTLOG_PTR:
8190 case IWN_FW_TLV_RUNT_EVTLOG_SIZE:
8191 case IWN_FW_TLV_RUNT_ERRLOG_PTR:
8192 case IWN_FW_TLV_INIT_EVTLOG_PTR:
8193 case IWN_FW_TLV_INIT_EVTLOG_SIZE:
8194 case IWN_FW_TLV_INIT_ERRLOG_PTR:
8195 case IWN_FW_TLV_WOWLAN_INST:
8196 case IWN_FW_TLV_WOWLAN_DATA:
8197 DPRINTF(sc, IWN_DEBUG_RESET,
8198 "TLV type %d recognized but not handled\n",
8199 le16toh(tlv->type));
8200 break;
8201 default:
8202 DPRINTF(sc, IWN_DEBUG_RESET,
8203 "TLV type %d not handled\n", le16toh(tlv->type));
8204 break;
8205 }
8206 next: /* TLV fields are 32-bit aligned. */
8207 ptr += (len + 3) & ~3;
8208 }
8209 return 0;
8210 }
8211
8212 static int
8213 iwn_read_firmware(struct iwn_softc *sc)
8214 {
8215 struct iwn_fw_info *fw = &sc->fw;
8216 int error;
8217
8218 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
8219
8220 IWN_UNLOCK(sc);
8221
8222 memset(fw, 0, sizeof (*fw));
8223
8224 /* Read firmware image from filesystem. */
8225 sc->fw_fp = firmware_get(sc->fwname);
8226 if (sc->fw_fp == NULL) {
8227 device_printf(sc->sc_dev, "%s: could not read firmware %s\n",
8228 __func__, sc->fwname);
8229 IWN_LOCK(sc);
8230 return EINVAL;
8231 }
8232 IWN_LOCK(sc);
8233
8234 fw->size = sc->fw_fp->datasize;
8235 fw->data = (const uint8_t *)sc->fw_fp->data;
8236 if (fw->size < sizeof (uint32_t)) {
8237 device_printf(sc->sc_dev, "%s: firmware too short: %zu bytes\n",
8238 __func__, fw->size);
8239 error = EINVAL;
8240 goto fail;
8241 }
8242
8243 /* Retrieve text and data sections. */
8244 if (*(const uint32_t *)fw->data != 0) /* Legacy image. */
8245 error = iwn_read_firmware_leg(sc, fw);
8246 else
8247 error = iwn_read_firmware_tlv(sc, fw, 1);
8248 if (error != 0) {
8249 device_printf(sc->sc_dev,
8250 "%s: could not read firmware sections, error %d\n",
8251 __func__, error);
8252 goto fail;
8253 }
8254
8255 device_printf(sc->sc_dev, "%s: ucode rev=0x%08x\n", __func__, sc->ucode_rev);
8256
8257 /* Make sure text and data sections fit in hardware memory. */
8258 if (fw->main.textsz > sc->fw_text_maxsz ||
8259 fw->main.datasz > sc->fw_data_maxsz ||
8260 fw->init.textsz > sc->fw_text_maxsz ||
8261 fw->init.datasz > sc->fw_data_maxsz ||
8262 fw->boot.textsz > IWN_FW_BOOT_TEXT_MAXSZ ||
8263 (fw->boot.textsz & 3) != 0) {
8264 device_printf(sc->sc_dev, "%s: firmware sections too large\n",
8265 __func__);
8266 error = EINVAL;
8267 goto fail;
8268 }
8269
8270 /* We can proceed with loading the firmware. */
8271 return 0;
8272
8273 fail: iwn_unload_firmware(sc);
8274 return error;
8275 }
8276
8277 static void
8278 iwn_unload_firmware(struct iwn_softc *sc)
8279 {
8280 firmware_put(sc->fw_fp, FIRMWARE_UNLOAD);
8281 sc->fw_fp = NULL;
8282 }
8283
8284 static int
8285 iwn_clock_wait(struct iwn_softc *sc)
8286 {
8287 int ntries;
8288
8289 /* Set "initialization complete" bit. */
8290 IWN_SETBITS(sc, IWN_GP_CNTRL, IWN_GP_CNTRL_INIT_DONE);
8291
8292 /* Wait for clock stabilization. */
8293 for (ntries = 0; ntries < 2500; ntries++) {
8294 if (IWN_READ(sc, IWN_GP_CNTRL) & IWN_GP_CNTRL_MAC_CLOCK_READY)
8295 return 0;
8296 DELAY(10);
8297 }
8298 device_printf(sc->sc_dev,
8299 "%s: timeout waiting for clock stabilization\n", __func__);
8300 return ETIMEDOUT;
8301 }
8302
8303 static int
8304 iwn_apm_init(struct iwn_softc *sc)
8305 {
8306 uint32_t reg;
8307 int error;
8308
8309 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
8310
8311 /* Disable L0s exit timer (NMI bug workaround). */
8312 IWN_SETBITS(sc, IWN_GIO_CHICKEN, IWN_GIO_CHICKEN_DIS_L0S_TIMER);
8313 /* Don't wait for ICH L0s (ICH bug workaround). */
8314 IWN_SETBITS(sc, IWN_GIO_CHICKEN, IWN_GIO_CHICKEN_L1A_NO_L0S_RX);
8315
8316 /* Set FH wait threshold to max (HW bug under stress workaround). */
8317 IWN_SETBITS(sc, IWN_DBG_HPET_MEM, 0xffff0000);
8318
8319 /* Enable HAP INTA to move adapter from L1a to L0s. */
8320 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_HAP_WAKE_L1A);
8321
8322 /* Retrieve PCIe Active State Power Management (ASPM). */
8323 reg = pci_read_config(sc->sc_dev, sc->sc_cap_off + PCIER_LINK_CTL, 4);
8324 /* Workaround for HW instability in PCIe L0->L0s->L1 transition. */
8325 if (reg & PCIEM_LINK_CTL_ASPMC_L1) /* L1 Entry enabled. */
8326 IWN_SETBITS(sc, IWN_GIO, IWN_GIO_L0S_ENA);
8327 else
8328 IWN_CLRBITS(sc, IWN_GIO, IWN_GIO_L0S_ENA);
8329
8330 if (sc->base_params->pll_cfg_val)
8331 IWN_SETBITS(sc, IWN_ANA_PLL, sc->base_params->pll_cfg_val);
8332
8333 /* Wait for clock stabilization before accessing prph. */
8334 if ((error = iwn_clock_wait(sc)) != 0)
8335 return error;
8336
8337 if ((error = iwn_nic_lock(sc)) != 0)
8338 return error;
8339 if (sc->hw_type == IWN_HW_REV_TYPE_4965) {
8340 /* Enable DMA and BSM (Bootstrap State Machine). */
8341 iwn_prph_write(sc, IWN_APMG_CLK_EN,
8342 IWN_APMG_CLK_CTRL_DMA_CLK_RQT |
8343 IWN_APMG_CLK_CTRL_BSM_CLK_RQT);
8344 } else {
8345 /* Enable DMA. */
8346 iwn_prph_write(sc, IWN_APMG_CLK_EN,
8347 IWN_APMG_CLK_CTRL_DMA_CLK_RQT);
8348 }
8349 DELAY(20);
8350 /* Disable L1-Active. */
8351 iwn_prph_setbits(sc, IWN_APMG_PCI_STT, IWN_APMG_PCI_STT_L1A_DIS);
8352 iwn_nic_unlock(sc);
8353
8354 return 0;
8355 }
8356
8357 static void
8358 iwn_apm_stop_master(struct iwn_softc *sc)
8359 {
8360 int ntries;
8361
8362 /* Stop busmaster DMA activity. */
8363 IWN_SETBITS(sc, IWN_RESET, IWN_RESET_STOP_MASTER);
8364 for (ntries = 0; ntries < 100; ntries++) {
8365 if (IWN_READ(sc, IWN_RESET) & IWN_RESET_MASTER_DISABLED)
8366 return;
8367 DELAY(10);
8368 }
8369 device_printf(sc->sc_dev, "%s: timeout waiting for master\n", __func__);
8370 }
8371
8372 static void
8373 iwn_apm_stop(struct iwn_softc *sc)
8374 {
8375 iwn_apm_stop_master(sc);
8376
8377 /* Reset the entire device. */
8378 IWN_SETBITS(sc, IWN_RESET, IWN_RESET_SW);
8379 DELAY(10);
8380 /* Clear "initialization complete" bit. */
8381 IWN_CLRBITS(sc, IWN_GP_CNTRL, IWN_GP_CNTRL_INIT_DONE);
8382 }
8383
8384 static int
8385 iwn4965_nic_config(struct iwn_softc *sc)
8386 {
8387 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
8388
8389 if (IWN_RFCFG_TYPE(sc->rfcfg) == 1) {
8390 /*
8391 * I don't believe this to be correct but this is what the
8392 * vendor driver is doing. Probably the bits should not be
8393 * shifted in IWN_RFCFG_*.
8394 */
8395 IWN_SETBITS(sc, IWN_HW_IF_CONFIG,
8396 IWN_RFCFG_TYPE(sc->rfcfg) |
8397 IWN_RFCFG_STEP(sc->rfcfg) |
8398 IWN_RFCFG_DASH(sc->rfcfg));
8399 }
8400 IWN_SETBITS(sc, IWN_HW_IF_CONFIG,
8401 IWN_HW_IF_CONFIG_RADIO_SI | IWN_HW_IF_CONFIG_MAC_SI);
8402 return 0;
8403 }
8404
8405 static int
8406 iwn5000_nic_config(struct iwn_softc *sc)
8407 {
8408 uint32_t tmp;
8409 int error;
8410
8411 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
8412
8413 if (IWN_RFCFG_TYPE(sc->rfcfg) < 3) {
8414 IWN_SETBITS(sc, IWN_HW_IF_CONFIG,
8415 IWN_RFCFG_TYPE(sc->rfcfg) |
8416 IWN_RFCFG_STEP(sc->rfcfg) |
8417 IWN_RFCFG_DASH(sc->rfcfg));
8418 }
8419 IWN_SETBITS(sc, IWN_HW_IF_CONFIG,
8420 IWN_HW_IF_CONFIG_RADIO_SI | IWN_HW_IF_CONFIG_MAC_SI);
8421
8422 if ((error = iwn_nic_lock(sc)) != 0)
8423 return error;
8424 iwn_prph_setbits(sc, IWN_APMG_PS, IWN_APMG_PS_EARLY_PWROFF_DIS);
8425
8426 if (sc->hw_type == IWN_HW_REV_TYPE_1000) {
8427 /*
8428 * Select first Switching Voltage Regulator (1.32V) to
8429 * solve a stability issue related to noisy DC2DC line
8430 * in the silicon of 1000 Series.
8431 */
8432 tmp = iwn_prph_read(sc, IWN_APMG_DIGITAL_SVR);
8433 tmp &= ~IWN_APMG_DIGITAL_SVR_VOLTAGE_MASK;
8434 tmp |= IWN_APMG_DIGITAL_SVR_VOLTAGE_1_32;
8435 iwn_prph_write(sc, IWN_APMG_DIGITAL_SVR, tmp);
8436 }
8437 iwn_nic_unlock(sc);
8438
8439 if (sc->sc_flags & IWN_FLAG_INTERNAL_PA) {
8440 /* Use internal power amplifier only. */
8441 IWN_WRITE(sc, IWN_GP_DRIVER, IWN_GP_DRIVER_RADIO_2X2_IPA);
8442 }
8443 if (sc->base_params->additional_nic_config && sc->calib_ver >= 6) {
8444 /* Indicate that ROM calibration version is >=6. */
8445 IWN_SETBITS(sc, IWN_GP_DRIVER, IWN_GP_DRIVER_CALIB_VER6);
8446 }
8447 if (sc->base_params->additional_gp_drv_bit)
8448 IWN_SETBITS(sc, IWN_GP_DRIVER,
8449 sc->base_params->additional_gp_drv_bit);
8450 return 0;
8451 }
8452
8453 /*
8454 * Take NIC ownership over Intel Active Management Technology (AMT).
8455 */
8456 static int
8457 iwn_hw_prepare(struct iwn_softc *sc)
8458 {
8459 int ntries;
8460
8461 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
8462
8463 /* Check if hardware is ready. */
8464 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_NIC_READY);
8465 for (ntries = 0; ntries < 5; ntries++) {
8466 if (IWN_READ(sc, IWN_HW_IF_CONFIG) &
8467 IWN_HW_IF_CONFIG_NIC_READY)
8468 return 0;
8469 DELAY(10);
8470 }
8471
8472 /* Hardware not ready, force into ready state. */
8473 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_PREPARE);
8474 for (ntries = 0; ntries < 15000; ntries++) {
8475 if (!(IWN_READ(sc, IWN_HW_IF_CONFIG) &
8476 IWN_HW_IF_CONFIG_PREPARE_DONE))
8477 break;
8478 DELAY(10);
8479 }
8480 if (ntries == 15000)
8481 return ETIMEDOUT;
8482
8483 /* Hardware should be ready now. */
8484 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_NIC_READY);
8485 for (ntries = 0; ntries < 5; ntries++) {
8486 if (IWN_READ(sc, IWN_HW_IF_CONFIG) &
8487 IWN_HW_IF_CONFIG_NIC_READY)
8488 return 0;
8489 DELAY(10);
8490 }
8491 return ETIMEDOUT;
8492 }
8493
8494 static int
8495 iwn_hw_init(struct iwn_softc *sc)
8496 {
8497 struct iwn_ops *ops = &sc->ops;
8498 int error, chnl, qid;
8499
8500 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
8501
8502 /* Clear pending interrupts. */
8503 IWN_WRITE(sc, IWN_INT, 0xffffffff);
8504
8505 if ((error = iwn_apm_init(sc)) != 0) {
8506 device_printf(sc->sc_dev,
8507 "%s: could not power ON adapter, error %d\n", __func__,
8508 error);
8509 return error;
8510 }
8511
8512 /* Select VMAIN power source. */
8513 if ((error = iwn_nic_lock(sc)) != 0)
8514 return error;
8515 iwn_prph_clrbits(sc, IWN_APMG_PS, IWN_APMG_PS_PWR_SRC_MASK);
8516 iwn_nic_unlock(sc);
8517
8518 /* Perform adapter-specific initialization. */
8519 if ((error = ops->nic_config(sc)) != 0)
8520 return error;
8521
8522 /* Initialize RX ring. */
8523 if ((error = iwn_nic_lock(sc)) != 0)
8524 return error;
8525 IWN_WRITE(sc, IWN_FH_RX_CONFIG, 0);
8526 IWN_WRITE(sc, IWN_FH_RX_WPTR, 0);
8527 /* Set physical address of RX ring (256-byte aligned). */
8528 IWN_WRITE(sc, IWN_FH_RX_BASE, sc->rxq.desc_dma.paddr >> 8);
8529 /* Set physical address of RX status (16-byte aligned). */
8530 IWN_WRITE(sc, IWN_FH_STATUS_WPTR, sc->rxq.stat_dma.paddr >> 4);
8531 /* Enable RX. */
8532 IWN_WRITE(sc, IWN_FH_RX_CONFIG,
8533 IWN_FH_RX_CONFIG_ENA |
8534 IWN_FH_RX_CONFIG_IGN_RXF_EMPTY | /* HW bug workaround */
8535 IWN_FH_RX_CONFIG_IRQ_DST_HOST |
8536 IWN_FH_RX_CONFIG_SINGLE_FRAME |
8537 IWN_FH_RX_CONFIG_RB_TIMEOUT(0) |
8538 IWN_FH_RX_CONFIG_NRBD(IWN_RX_RING_COUNT_LOG));
8539 iwn_nic_unlock(sc);
8540 IWN_WRITE(sc, IWN_FH_RX_WPTR, (IWN_RX_RING_COUNT - 1) & ~7);
8541
8542 if ((error = iwn_nic_lock(sc)) != 0)
8543 return error;
8544
8545 /* Initialize TX scheduler. */
8546 iwn_prph_write(sc, sc->sched_txfact_addr, 0);
8547
8548 /* Set physical address of "keep warm" page (16-byte aligned). */
8549 IWN_WRITE(sc, IWN_FH_KW_ADDR, sc->kw_dma.paddr >> 4);
8550
8551 /* Initialize TX rings. */
8552 for (qid = 0; qid < sc->ntxqs; qid++) {
8553 struct iwn_tx_ring *txq = &sc->txq[qid];
8554
8555 /* Set physical address of TX ring (256-byte aligned). */
8556 IWN_WRITE(sc, IWN_FH_CBBC_QUEUE(qid),
8557 txq->desc_dma.paddr >> 8);
8558 }
8559 iwn_nic_unlock(sc);
8560
8561 /* Enable DMA channels. */
8562 for (chnl = 0; chnl < sc->ndmachnls; chnl++) {
8563 IWN_WRITE(sc, IWN_FH_TX_CONFIG(chnl),
8564 IWN_FH_TX_CONFIG_DMA_ENA |
8565 IWN_FH_TX_CONFIG_DMA_CREDIT_ENA);
8566 }
8567
8568 /* Clear "radio off" and "commands blocked" bits. */
8569 IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_RFKILL);
8570 IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_CMD_BLOCKED);
8571
8572 /* Clear pending interrupts. */
8573 IWN_WRITE(sc, IWN_INT, 0xffffffff);
8574 /* Enable interrupt coalescing. */
8575 IWN_WRITE(sc, IWN_INT_COALESCING, 512 / 8);
8576 /* Enable interrupts. */
8577 IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask);
8578
8579 /* _Really_ make sure "radio off" bit is cleared! */
8580 IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_RFKILL);
8581 IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_RFKILL);
8582
8583 /* Enable shadow registers. */
8584 if (sc->base_params->shadow_reg_enable)
8585 IWN_SETBITS(sc, IWN_SHADOW_REG_CTRL, 0x800fffff);
8586
8587 if ((error = ops->load_firmware(sc)) != 0) {
8588 device_printf(sc->sc_dev,
8589 "%s: could not load firmware, error %d\n", __func__,
8590 error);
8591 return error;
8592 }
8593 /* Wait at most one second for firmware alive notification. */
8594 if ((error = msleep(sc, &sc->sc_mtx, PCATCH, "iwninit", hz)) != 0) {
8595 device_printf(sc->sc_dev,
8596 "%s: timeout waiting for adapter to initialize, error %d\n",
8597 __func__, error);
8598 return error;
8599 }
8600 /* Do post-firmware initialization. */
8601
8602 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
8603
8604 return ops->post_alive(sc);
8605 }
8606
8607 static void
8608 iwn_hw_stop(struct iwn_softc *sc)
8609 {
8610 int chnl, qid, ntries;
8611
8612 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
8613
8614 IWN_WRITE(sc, IWN_RESET, IWN_RESET_NEVO);
8615
8616 /* Disable interrupts. */
8617 IWN_WRITE(sc, IWN_INT_MASK, 0);
8618 IWN_WRITE(sc, IWN_INT, 0xffffffff);
8619 IWN_WRITE(sc, IWN_FH_INT, 0xffffffff);
8620 sc->sc_flags &= ~IWN_FLAG_USE_ICT;
8621
8622 /* Make sure we no longer hold the NIC lock. */
8623 iwn_nic_unlock(sc);
8624
8625 /* Stop TX scheduler. */
8626 iwn_prph_write(sc, sc->sched_txfact_addr, 0);
8627
8628 /* Stop all DMA channels. */
8629 if (iwn_nic_lock(sc) == 0) {
8630 for (chnl = 0; chnl < sc->ndmachnls; chnl++) {
8631 IWN_WRITE(sc, IWN_FH_TX_CONFIG(chnl), 0);
8632 for (ntries = 0; ntries < 200; ntries++) {
8633 if (IWN_READ(sc, IWN_FH_TX_STATUS) &
8634 IWN_FH_TX_STATUS_IDLE(chnl))
8635 break;
8636 DELAY(10);
8637 }
8638 }
8639 iwn_nic_unlock(sc);
8640 }
8641
8642 /* Stop RX ring. */
8643 iwn_reset_rx_ring(sc, &sc->rxq);
8644
8645 /* Reset all TX rings. */
8646 for (qid = 0; qid < sc->ntxqs; qid++)
8647 iwn_reset_tx_ring(sc, &sc->txq[qid]);
8648
8649 if (iwn_nic_lock(sc) == 0) {
8650 iwn_prph_write(sc, IWN_APMG_CLK_DIS,
8651 IWN_APMG_CLK_CTRL_DMA_CLK_RQT);
8652 iwn_nic_unlock(sc);
8653 }
8654 DELAY(5);
8655 /* Power OFF adapter. */
8656 iwn_apm_stop(sc);
8657 }
8658
8659 static void
8660 iwn_radio_on(void *arg0, int pending)
8661 {
8662 struct iwn_softc *sc = arg0;
8663 struct ieee80211com *ic = &sc->sc_ic;
8664 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
8665
8666 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
8667
8668 if (vap != NULL) {
8669 iwn_init(sc);
8670 ieee80211_init(vap);
8671 }
8672 }
8673
8674 static void
8675 iwn_radio_off(void *arg0, int pending)
8676 {
8677 struct iwn_softc *sc = arg0;
8678 struct ieee80211com *ic = &sc->sc_ic;
8679 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
8680
8681 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
8682
8683 iwn_stop(sc);
8684 if (vap != NULL)
8685 ieee80211_stop(vap);
8686
8687 /* Enable interrupts to get RF toggle notification. */
8688 IWN_LOCK(sc);
8689 IWN_WRITE(sc, IWN_INT, 0xffffffff);
8690 IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask);
8691 IWN_UNLOCK(sc);
8692 }
8693
8694 static void
8695 iwn_panicked(void *arg0, int pending)
8696 {
8697 struct iwn_softc *sc = arg0;
8698 struct ieee80211com *ic = &sc->sc_ic;
8699 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
8700 #if 0
8701 int error;
8702 #endif
8703
8704 if (vap == NULL) {
8705 printf("%s: null vap\n", __func__);
8706 return;
8707 }
8708
8709 device_printf(sc->sc_dev, "%s: controller panicked, iv_state = %d; "
8710 "restarting\n", __func__, vap->iv_state);
8711
8712 /*
8713 * This is not enough work. We need to also reinitialise
8714 * the correct transmit state for aggregation enabled queues,
8715 * which has a very specific requirement of
8716 * ring index = 802.11 seqno % 256. If we don't do this (which
8717 * we definitely don't!) then the firmware will just panic again.
8718 */
8719 #if 1
8720 ieee80211_restart_all(ic);
8721 #else
8722 IWN_LOCK(sc);
8723
8724 iwn_stop_locked(sc);
8725 iwn_init_locked(sc);
8726 if (vap->iv_state >= IEEE80211_S_AUTH &&
8727 (error = iwn_auth(sc, vap)) != 0) {
8728 device_printf(sc->sc_dev,
8729 "%s: could not move to auth state\n", __func__);
8730 }
8731 if (vap->iv_state >= IEEE80211_S_RUN &&
8732 (error = iwn_run(sc, vap)) != 0) {
8733 device_printf(sc->sc_dev,
8734 "%s: could not move to run state\n", __func__);
8735 }
8736
8737 IWN_UNLOCK(sc);
8738 #endif
8739 }
8740
8741 static void
8742 iwn_init_locked(struct iwn_softc *sc)
8743 {
8744 int error;
8745
8746 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
8747
8748 IWN_LOCK_ASSERT(sc);
8749
8750 sc->sc_flags |= IWN_FLAG_RUNNING;
8751
8752 if ((error = iwn_hw_prepare(sc)) != 0) {
8753 device_printf(sc->sc_dev, "%s: hardware not ready, error %d\n",
8754 __func__, error);
8755 goto fail;
8756 }
8757
8758 /* Initialize interrupt mask to default value. */
8759 sc->int_mask = IWN_INT_MASK_DEF;
8760 sc->sc_flags &= ~IWN_FLAG_USE_ICT;
8761
8762 /* Check that the radio is not disabled by hardware switch. */
8763 if (!(IWN_READ(sc, IWN_GP_CNTRL) & IWN_GP_CNTRL_RFKILL)) {
8764 device_printf(sc->sc_dev,
8765 "radio is disabled by hardware switch\n");
8766 /* Enable interrupts to get RF toggle notifications. */
8767 IWN_WRITE(sc, IWN_INT, 0xffffffff);
8768 IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask);
8769 return;
8770 }
8771
8772 /* Read firmware images from the filesystem. */
8773 if ((error = iwn_read_firmware(sc)) != 0) {
8774 device_printf(sc->sc_dev,
8775 "%s: could not read firmware, error %d\n", __func__,
8776 error);
8777 goto fail;
8778 }
8779
8780 /* Initialize hardware and upload firmware. */
8781 error = iwn_hw_init(sc);
8782 iwn_unload_firmware(sc);
8783 if (error != 0) {
8784 device_printf(sc->sc_dev,
8785 "%s: could not initialize hardware, error %d\n", __func__,
8786 error);
8787 goto fail;
8788 }
8789
8790 /* Configure adapter now that it is ready. */
8791 if ((error = iwn_config(sc)) != 0) {
8792 device_printf(sc->sc_dev,
8793 "%s: could not configure device, error %d\n", __func__,
8794 error);
8795 goto fail;
8796 }
8797
8798 callout_reset(&sc->watchdog_to, hz, iwn_watchdog, sc);
8799
8800 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__);
8801
8802 return;
8803
8804 fail:
8805 sc->sc_flags &= ~IWN_FLAG_RUNNING;
8806 iwn_stop_locked(sc);
8807 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end in error\n",__func__);
8808 }
8809
8810 static void
8811 iwn_init(struct iwn_softc *sc)
8812 {
8813
8814 IWN_LOCK(sc);
8815 iwn_init_locked(sc);
8816 IWN_UNLOCK(sc);
8817
8818 if (sc->sc_flags & IWN_FLAG_RUNNING)
8819 ieee80211_start_all(&sc->sc_ic);
8820 }
8821
8822 static void
8823 iwn_stop_locked(struct iwn_softc *sc)
8824 {
8825
8826 IWN_LOCK_ASSERT(sc);
8827
8828 sc->sc_is_scanning = 0;
8829 sc->sc_tx_timer = 0;
8830 callout_stop(&sc->watchdog_to);
8831 callout_stop(&sc->scan_timeout);
8832 callout_stop(&sc->calib_to);
8833 sc->sc_flags &= ~IWN_FLAG_RUNNING;
8834
8835 /* Power OFF hardware. */
8836 iwn_hw_stop(sc);
8837 }
8838
8839 static void
8840 iwn_stop(struct iwn_softc *sc)
8841 {
8842 IWN_LOCK(sc);
8843 iwn_stop_locked(sc);
8844 IWN_UNLOCK(sc);
8845 }
8846
8847 /*
8848 * Callback from net80211 to start a scan.
8849 */
8850 static void
8851 iwn_scan_start(struct ieee80211com *ic)
8852 {
8853 struct iwn_softc *sc = ic->ic_softc;
8854
8855 IWN_LOCK(sc);
8856 /* make the link LED blink while we're scanning */
8857 iwn_set_led(sc, IWN_LED_LINK, 20, 2);
8858 IWN_UNLOCK(sc);
8859 }
8860
8861 /*
8862 * Callback from net80211 to terminate a scan.
8863 */
8864 static void
8865 iwn_scan_end(struct ieee80211com *ic)
8866 {
8867 struct iwn_softc *sc = ic->ic_softc;
8868 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
8869
8870 IWN_LOCK(sc);
8871 if (vap->iv_state == IEEE80211_S_RUN) {
8872 /* Set link LED to ON status if we are associated */
8873 iwn_set_led(sc, IWN_LED_LINK, 0, 1);
8874 }
8875 IWN_UNLOCK(sc);
8876 }
8877
8878 /*
8879 * Callback from net80211 to force a channel change.
8880 */
8881 static void
8882 iwn_set_channel(struct ieee80211com *ic)
8883 {
8884 const struct ieee80211_channel *c = ic->ic_curchan;
8885 struct iwn_softc *sc = ic->ic_softc;
8886 int error;
8887
8888 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__);
8889
8890 IWN_LOCK(sc);
8891 sc->sc_rxtap.wr_chan_freq = htole16(c->ic_freq);
8892 sc->sc_rxtap.wr_chan_flags = htole16(c->ic_flags);
8893 sc->sc_txtap.wt_chan_freq = htole16(c->ic_freq);
8894 sc->sc_txtap.wt_chan_flags = htole16(c->ic_flags);
8895
8896 /*
8897 * Only need to set the channel in Monitor mode. AP scanning and auth
8898 * are already taken care of by their respective firmware commands.
8899 */
8900 if (ic->ic_opmode == IEEE80211_M_MONITOR) {
8901 error = iwn_config(sc);
8902 if (error != 0)
8903 device_printf(sc->sc_dev,
8904 "%s: error %d settting channel\n", __func__, error);
8905 }
8906 IWN_UNLOCK(sc);
8907 }
8908
8909 /*
8910 * Callback from net80211 to start scanning of the current channel.
8911 */
8912 static void
8913 iwn_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)
8914 {
8915 struct ieee80211vap *vap = ss->ss_vap;
8916 struct ieee80211com *ic = vap->iv_ic;
8917 struct iwn_softc *sc = ic->ic_softc;
8918 int error;
8919
8920 IWN_LOCK(sc);
8921 error = iwn_scan(sc, vap, ss, ic->ic_curchan);
8922 IWN_UNLOCK(sc);
8923 if (error != 0)
8924 ieee80211_cancel_scan(vap);
8925 }
8926
8927 /*
8928 * Callback from net80211 to handle the minimum dwell time being met.
8929 * The intent is to terminate the scan but we just let the firmware
8930 * notify us when it's finished as we have no safe way to abort it.
8931 */
8932 static void
8933 iwn_scan_mindwell(struct ieee80211_scan_state *ss)
8934 {
8935 /* NB: don't try to abort scan; wait for firmware to finish */
8936 }
8937 #ifdef IWN_DEBUG
8938 #define IWN_DESC(x) case x: return #x
8939
8940 /*
8941 * Translate CSR code to string
8942 */
8943 static char *iwn_get_csr_string(int csr)
8944 {
8945 switch (csr) {
8946 IWN_DESC(IWN_HW_IF_CONFIG);
8947 IWN_DESC(IWN_INT_COALESCING);
8948 IWN_DESC(IWN_INT);
8949 IWN_DESC(IWN_INT_MASK);
8950 IWN_DESC(IWN_FH_INT);
8951 IWN_DESC(IWN_GPIO_IN);
8952 IWN_DESC(IWN_RESET);
8953 IWN_DESC(IWN_GP_CNTRL);
8954 IWN_DESC(IWN_HW_REV);
8955 IWN_DESC(IWN_EEPROM);
8956 IWN_DESC(IWN_EEPROM_GP);
8957 IWN_DESC(IWN_OTP_GP);
8958 IWN_DESC(IWN_GIO);
8959 IWN_DESC(IWN_GP_UCODE);
8960 IWN_DESC(IWN_GP_DRIVER);
8961 IWN_DESC(IWN_UCODE_GP1);
8962 IWN_DESC(IWN_UCODE_GP2);
8963 IWN_DESC(IWN_LED);
8964 IWN_DESC(IWN_DRAM_INT_TBL);
8965 IWN_DESC(IWN_GIO_CHICKEN);
8966 IWN_DESC(IWN_ANA_PLL);
8967 IWN_DESC(IWN_HW_REV_WA);
8968 IWN_DESC(IWN_DBG_HPET_MEM);
8969 default:
8970 return "UNKNOWN CSR";
8971 }
8972 }
8973
8974 /*
8975 * This function print firmware register
8976 */
8977 static void
8978 iwn_debug_register(struct iwn_softc *sc)
8979 {
8980 int i;
8981 static const uint32_t csr_tbl[] = {
8982 IWN_HW_IF_CONFIG,
8983 IWN_INT_COALESCING,
8984 IWN_INT,
8985 IWN_INT_MASK,
8986 IWN_FH_INT,
8987 IWN_GPIO_IN,
8988 IWN_RESET,
8989 IWN_GP_CNTRL,
8990 IWN_HW_REV,
8991 IWN_EEPROM,
8992 IWN_EEPROM_GP,
8993 IWN_OTP_GP,
8994 IWN_GIO,
8995 IWN_GP_UCODE,
8996 IWN_GP_DRIVER,
8997 IWN_UCODE_GP1,
8998 IWN_UCODE_GP2,
8999 IWN_LED,
9000 IWN_DRAM_INT_TBL,
9001 IWN_GIO_CHICKEN,
9002 IWN_ANA_PLL,
9003 IWN_HW_REV_WA,
9004 IWN_DBG_HPET_MEM,
9005 };
9006 DPRINTF(sc, IWN_DEBUG_REGISTER,
9007 "CSR values: (2nd byte of IWN_INT_COALESCING is IWN_INT_PERIODIC)%s",
9008 "\n");
9009 for (i = 0; i < nitems(csr_tbl); i++){
9010 DPRINTF(sc, IWN_DEBUG_REGISTER," %10s: 0x%08x ",
9011 iwn_get_csr_string(csr_tbl[i]), IWN_READ(sc, csr_tbl[i]));
9012 if ((i+1) % 3 == 0)
9013 DPRINTF(sc, IWN_DEBUG_REGISTER,"%s","\n");
9014 }
9015 DPRINTF(sc, IWN_DEBUG_REGISTER,"%s","\n");
9016 }
9017 #endif
9018
9019
Cache object: 17ea943841ffafa0a39bbf0ca32b9397
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