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Merge remote-tracking branch 'asoc/topic/tlv320aic32x4' into asoc-next
[deliverable/linux.git] / drivers / net / wireless / realtek / rtlwifi / base.c
1 /******************************************************************************
2 *
3 * Copyright(c) 2009-2012 Realtek Corporation.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * The full GNU General Public License is included in this distribution in the
15 * file called LICENSE.
16 *
17 * Contact Information:
18 * wlanfae <wlanfae@realtek.com>
19 * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
20 * Hsinchu 300, Taiwan.
21 *
22 * Larry Finger <Larry.Finger@lwfinger.net>
23 *
24 *****************************************************************************/
25
26 #include "wifi.h"
27 #include "rc.h"
28 #include "base.h"
29 #include "efuse.h"
30 #include "cam.h"
31 #include "ps.h"
32 #include "regd.h"
33 #include "pci.h"
34 #include <linux/ip.h>
35 #include <linux/module.h>
36 #include <linux/udp.h>
37
38 /*
39 *NOTICE!!!: This file will be very big, we should
40 *keep it clear under following roles:
41 *
42 *This file include following parts, so, if you add new
43 *functions into this file, please check which part it
44 *should includes. or check if you should add new part
45 *for this file:
46 *
47 *1) mac80211 init functions
48 *2) tx information functions
49 *3) functions called by core.c
50 *4) wq & timer callback functions
51 *5) frame process functions
52 *6) IOT functions
53 *7) sysfs functions
54 *8) vif functions
55 *9) ...
56 */
57
58 /*********************************************************
59 *
60 * mac80211 init functions
61 *
62 *********************************************************/
63 static struct ieee80211_channel rtl_channeltable_2g[] = {
64 {.center_freq = 2412, .hw_value = 1,},
65 {.center_freq = 2417, .hw_value = 2,},
66 {.center_freq = 2422, .hw_value = 3,},
67 {.center_freq = 2427, .hw_value = 4,},
68 {.center_freq = 2432, .hw_value = 5,},
69 {.center_freq = 2437, .hw_value = 6,},
70 {.center_freq = 2442, .hw_value = 7,},
71 {.center_freq = 2447, .hw_value = 8,},
72 {.center_freq = 2452, .hw_value = 9,},
73 {.center_freq = 2457, .hw_value = 10,},
74 {.center_freq = 2462, .hw_value = 11,},
75 {.center_freq = 2467, .hw_value = 12,},
76 {.center_freq = 2472, .hw_value = 13,},
77 {.center_freq = 2484, .hw_value = 14,},
78 };
79
80 static struct ieee80211_channel rtl_channeltable_5g[] = {
81 {.center_freq = 5180, .hw_value = 36,},
82 {.center_freq = 5200, .hw_value = 40,},
83 {.center_freq = 5220, .hw_value = 44,},
84 {.center_freq = 5240, .hw_value = 48,},
85 {.center_freq = 5260, .hw_value = 52,},
86 {.center_freq = 5280, .hw_value = 56,},
87 {.center_freq = 5300, .hw_value = 60,},
88 {.center_freq = 5320, .hw_value = 64,},
89 {.center_freq = 5500, .hw_value = 100,},
90 {.center_freq = 5520, .hw_value = 104,},
91 {.center_freq = 5540, .hw_value = 108,},
92 {.center_freq = 5560, .hw_value = 112,},
93 {.center_freq = 5580, .hw_value = 116,},
94 {.center_freq = 5600, .hw_value = 120,},
95 {.center_freq = 5620, .hw_value = 124,},
96 {.center_freq = 5640, .hw_value = 128,},
97 {.center_freq = 5660, .hw_value = 132,},
98 {.center_freq = 5680, .hw_value = 136,},
99 {.center_freq = 5700, .hw_value = 140,},
100 {.center_freq = 5745, .hw_value = 149,},
101 {.center_freq = 5765, .hw_value = 153,},
102 {.center_freq = 5785, .hw_value = 157,},
103 {.center_freq = 5805, .hw_value = 161,},
104 {.center_freq = 5825, .hw_value = 165,},
105 };
106
107 static struct ieee80211_rate rtl_ratetable_2g[] = {
108 {.bitrate = 10, .hw_value = 0x00,},
109 {.bitrate = 20, .hw_value = 0x01,},
110 {.bitrate = 55, .hw_value = 0x02,},
111 {.bitrate = 110, .hw_value = 0x03,},
112 {.bitrate = 60, .hw_value = 0x04,},
113 {.bitrate = 90, .hw_value = 0x05,},
114 {.bitrate = 120, .hw_value = 0x06,},
115 {.bitrate = 180, .hw_value = 0x07,},
116 {.bitrate = 240, .hw_value = 0x08,},
117 {.bitrate = 360, .hw_value = 0x09,},
118 {.bitrate = 480, .hw_value = 0x0a,},
119 {.bitrate = 540, .hw_value = 0x0b,},
120 };
121
122 static struct ieee80211_rate rtl_ratetable_5g[] = {
123 {.bitrate = 60, .hw_value = 0x04,},
124 {.bitrate = 90, .hw_value = 0x05,},
125 {.bitrate = 120, .hw_value = 0x06,},
126 {.bitrate = 180, .hw_value = 0x07,},
127 {.bitrate = 240, .hw_value = 0x08,},
128 {.bitrate = 360, .hw_value = 0x09,},
129 {.bitrate = 480, .hw_value = 0x0a,},
130 {.bitrate = 540, .hw_value = 0x0b,},
131 };
132
133 static const struct ieee80211_supported_band rtl_band_2ghz = {
134 .band = IEEE80211_BAND_2GHZ,
135
136 .channels = rtl_channeltable_2g,
137 .n_channels = ARRAY_SIZE(rtl_channeltable_2g),
138
139 .bitrates = rtl_ratetable_2g,
140 .n_bitrates = ARRAY_SIZE(rtl_ratetable_2g),
141
142 .ht_cap = {0},
143 };
144
145 static struct ieee80211_supported_band rtl_band_5ghz = {
146 .band = IEEE80211_BAND_5GHZ,
147
148 .channels = rtl_channeltable_5g,
149 .n_channels = ARRAY_SIZE(rtl_channeltable_5g),
150
151 .bitrates = rtl_ratetable_5g,
152 .n_bitrates = ARRAY_SIZE(rtl_ratetable_5g),
153
154 .ht_cap = {0},
155 };
156
157 static const u8 tid_to_ac[] = {
158 2, /* IEEE80211_AC_BE */
159 3, /* IEEE80211_AC_BK */
160 3, /* IEEE80211_AC_BK */
161 2, /* IEEE80211_AC_BE */
162 1, /* IEEE80211_AC_VI */
163 1, /* IEEE80211_AC_VI */
164 0, /* IEEE80211_AC_VO */
165 0, /* IEEE80211_AC_VO */
166 };
167
168 u8 rtl_tid_to_ac(u8 tid)
169 {
170 return tid_to_ac[tid];
171 }
172 EXPORT_SYMBOL_GPL(rtl_tid_to_ac);
173
174 static void _rtl_init_hw_ht_capab(struct ieee80211_hw *hw,
175 struct ieee80211_sta_ht_cap *ht_cap)
176 {
177 struct rtl_priv *rtlpriv = rtl_priv(hw);
178 struct rtl_phy *rtlphy = &(rtlpriv->phy);
179
180 ht_cap->ht_supported = true;
181 ht_cap->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
182 IEEE80211_HT_CAP_SGI_40 |
183 IEEE80211_HT_CAP_SGI_20 |
184 IEEE80211_HT_CAP_DSSSCCK40 | IEEE80211_HT_CAP_MAX_AMSDU;
185
186 if (rtlpriv->rtlhal.disable_amsdu_8k)
187 ht_cap->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
188
189 /*
190 *Maximum length of AMPDU that the STA can receive.
191 *Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
192 */
193 ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
194
195 /*Minimum MPDU start spacing , */
196 ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
197
198 ht_cap->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
199
200 /*hw->wiphy->bands[IEEE80211_BAND_2GHZ]
201 *base on ant_num
202 *rx_mask: RX mask
203 *if rx_ant = 1 rx_mask[0]= 0xff;==>MCS0-MCS7
204 *if rx_ant = 2 rx_mask[1]= 0xff;==>MCS8-MCS15
205 *if rx_ant >= 3 rx_mask[2]= 0xff;
206 *if BW_40 rx_mask[4]= 0x01;
207 *highest supported RX rate
208 */
209 if (rtlpriv->dm.supp_phymode_switch) {
210 RT_TRACE(rtlpriv, COMP_INIT, DBG_EMERG,
211 "Support phy mode switch\n");
212
213 ht_cap->mcs.rx_mask[0] = 0xFF;
214 ht_cap->mcs.rx_mask[1] = 0xFF;
215 ht_cap->mcs.rx_mask[4] = 0x01;
216
217 ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
218 } else {
219 if (get_rf_type(rtlphy) == RF_1T2R ||
220 get_rf_type(rtlphy) == RF_2T2R) {
221 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
222 "1T2R or 2T2R\n");
223 ht_cap->mcs.rx_mask[0] = 0xFF;
224 ht_cap->mcs.rx_mask[1] = 0xFF;
225 ht_cap->mcs.rx_mask[4] = 0x01;
226
227 ht_cap->mcs.rx_highest =
228 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
229 } else if (get_rf_type(rtlphy) == RF_1T1R) {
230 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "1T1R\n");
231
232 ht_cap->mcs.rx_mask[0] = 0xFF;
233 ht_cap->mcs.rx_mask[1] = 0x00;
234 ht_cap->mcs.rx_mask[4] = 0x01;
235
236 ht_cap->mcs.rx_highest =
237 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS7);
238 }
239 }
240 }
241
242 static void _rtl_init_hw_vht_capab(struct ieee80211_hw *hw,
243 struct ieee80211_sta_vht_cap *vht_cap)
244 {
245 struct rtl_priv *rtlpriv = rtl_priv(hw);
246 struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
247
248 if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE) {
249 u16 mcs_map;
250
251 vht_cap->vht_supported = true;
252 vht_cap->cap =
253 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895 |
254 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 |
255 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
256 IEEE80211_VHT_CAP_SHORT_GI_80 |
257 IEEE80211_VHT_CAP_TXSTBC |
258 IEEE80211_VHT_CAP_RXSTBC_1 |
259 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
260 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
261 IEEE80211_VHT_CAP_HTC_VHT |
262 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
263 IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
264 IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN |
265 0;
266
267 mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
268 IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
269 IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
270 IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
271 IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
272 IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
273 IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
274 IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;
275
276 vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
277 vht_cap->vht_mcs.rx_highest =
278 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9);
279 vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
280 vht_cap->vht_mcs.tx_highest =
281 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9);
282 } else if (rtlhal->hw_type == HARDWARE_TYPE_RTL8821AE) {
283 u16 mcs_map;
284
285 vht_cap->vht_supported = true;
286 vht_cap->cap =
287 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895 |
288 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 |
289 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
290 IEEE80211_VHT_CAP_SHORT_GI_80 |
291 IEEE80211_VHT_CAP_TXSTBC |
292 IEEE80211_VHT_CAP_RXSTBC_1 |
293 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
294 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
295 IEEE80211_VHT_CAP_HTC_VHT |
296 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
297 IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
298 IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN |
299 0;
300
301 mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
302 IEEE80211_VHT_MCS_NOT_SUPPORTED << 2 |
303 IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
304 IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
305 IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
306 IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
307 IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
308 IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;
309
310 vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
311 vht_cap->vht_mcs.rx_highest =
312 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9);
313 vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
314 vht_cap->vht_mcs.tx_highest =
315 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9);
316 }
317 }
318
319 static void _rtl_init_mac80211(struct ieee80211_hw *hw)
320 {
321 struct rtl_priv *rtlpriv = rtl_priv(hw);
322 struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
323 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
324 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
325 struct ieee80211_supported_band *sband;
326
327 if (rtlhal->macphymode == SINGLEMAC_SINGLEPHY &&
328 rtlhal->bandset == BAND_ON_BOTH) {
329 /* 1: 2.4 G bands */
330 /* <1> use mac->bands as mem for hw->wiphy->bands */
331 sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]);
332
333 /* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ]
334 * to default value(1T1R) */
335 memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]), &rtl_band_2ghz,
336 sizeof(struct ieee80211_supported_band));
337
338 /* <3> init ht cap base on ant_num */
339 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
340
341 /* <4> set mac->sband to wiphy->sband */
342 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
343
344 /* 2: 5 G bands */
345 /* <1> use mac->bands as mem for hw->wiphy->bands */
346 sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]);
347
348 /* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ]
349 * to default value(1T1R) */
350 memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]), &rtl_band_5ghz,
351 sizeof(struct ieee80211_supported_band));
352
353 /* <3> init ht cap base on ant_num */
354 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
355
356 _rtl_init_hw_vht_capab(hw, &sband->vht_cap);
357 /* <4> set mac->sband to wiphy->sband */
358 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
359 } else {
360 if (rtlhal->current_bandtype == BAND_ON_2_4G) {
361 /* <1> use mac->bands as mem for hw->wiphy->bands */
362 sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]);
363
364 /* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ]
365 * to default value(1T1R) */
366 memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]),
367 &rtl_band_2ghz,
368 sizeof(struct ieee80211_supported_band));
369
370 /* <3> init ht cap base on ant_num */
371 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
372
373 /* <4> set mac->sband to wiphy->sband */
374 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
375 } else if (rtlhal->current_bandtype == BAND_ON_5G) {
376 /* <1> use mac->bands as mem for hw->wiphy->bands */
377 sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]);
378
379 /* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ]
380 * to default value(1T1R) */
381 memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]),
382 &rtl_band_5ghz,
383 sizeof(struct ieee80211_supported_band));
384
385 /* <3> init ht cap base on ant_num */
386 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
387
388 _rtl_init_hw_vht_capab(hw, &sband->vht_cap);
389 /* <4> set mac->sband to wiphy->sband */
390 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
391 } else {
392 RT_TRACE(rtlpriv, COMP_INIT, DBG_EMERG, "Err BAND %d\n",
393 rtlhal->current_bandtype);
394 }
395 }
396 /* <5> set hw caps */
397 ieee80211_hw_set(hw, SIGNAL_DBM);
398 ieee80211_hw_set(hw, RX_INCLUDES_FCS);
399 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
400 ieee80211_hw_set(hw, CONNECTION_MONITOR);
401 ieee80211_hw_set(hw, MFP_CAPABLE);
402 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
403
404 /* swlps or hwlps has been set in diff chip in init_sw_vars */
405 if (rtlpriv->psc.swctrl_lps) {
406 ieee80211_hw_set(hw, SUPPORTS_PS);
407 ieee80211_hw_set(hw, PS_NULLFUNC_STACK);
408 }
409 hw->wiphy->interface_modes =
410 BIT(NL80211_IFTYPE_AP) |
411 BIT(NL80211_IFTYPE_STATION) |
412 BIT(NL80211_IFTYPE_ADHOC) |
413 BIT(NL80211_IFTYPE_MESH_POINT) |
414 BIT(NL80211_IFTYPE_P2P_CLIENT) |
415 BIT(NL80211_IFTYPE_P2P_GO);
416 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
417
418 hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
419
420 hw->wiphy->rts_threshold = 2347;
421
422 hw->queues = AC_MAX;
423 hw->extra_tx_headroom = RTL_TX_HEADER_SIZE;
424
425 /* TODO: Correct this value for our hw */
426 /* TODO: define these hard code value */
427 hw->max_listen_interval = 10;
428 hw->max_rate_tries = 4;
429 /* hw->max_rates = 1; */
430 hw->sta_data_size = sizeof(struct rtl_sta_info);
431
432 /* wowlan is not supported by kernel if CONFIG_PM is not defined */
433 #ifdef CONFIG_PM
434 if (rtlpriv->psc.wo_wlan_mode) {
435 if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_MAGIC_PACKET)
436 rtlpriv->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT;
437 if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_PATTERN_MATCH) {
438 rtlpriv->wowlan.n_patterns =
439 MAX_SUPPORT_WOL_PATTERN_NUM;
440 rtlpriv->wowlan.pattern_min_len = MIN_WOL_PATTERN_SIZE;
441 rtlpriv->wowlan.pattern_max_len = MAX_WOL_PATTERN_SIZE;
442 }
443 hw->wiphy->wowlan = &rtlpriv->wowlan;
444 }
445 #endif
446
447 /* <6> mac address */
448 if (is_valid_ether_addr(rtlefuse->dev_addr)) {
449 SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr);
450 } else {
451 u8 rtlmac1[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 };
452 get_random_bytes((rtlmac1 + (ETH_ALEN - 1)), 1);
453 SET_IEEE80211_PERM_ADDR(hw, rtlmac1);
454 }
455 }
456
457 static void _rtl_init_deferred_work(struct ieee80211_hw *hw)
458 {
459 struct rtl_priv *rtlpriv = rtl_priv(hw);
460
461 /* <1> timer */
462 setup_timer(&rtlpriv->works.watchdog_timer,
463 rtl_watch_dog_timer_callback, (unsigned long)hw);
464 setup_timer(&rtlpriv->works.dualmac_easyconcurrent_retrytimer,
465 rtl_easy_concurrent_retrytimer_callback, (unsigned long)hw);
466 /* <2> work queue */
467 rtlpriv->works.hw = hw;
468 rtlpriv->works.rtl_wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name);
469 INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
470 (void *)rtl_watchdog_wq_callback);
471 INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,
472 (void *)rtl_ips_nic_off_wq_callback);
473 INIT_DELAYED_WORK(&rtlpriv->works.ps_work,
474 (void *)rtl_swlps_wq_callback);
475 INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq,
476 (void *)rtl_swlps_rfon_wq_callback);
477 INIT_DELAYED_WORK(&rtlpriv->works.fwevt_wq,
478 (void *)rtl_fwevt_wq_callback);
479
480 }
481
482 void rtl_deinit_deferred_work(struct ieee80211_hw *hw)
483 {
484 struct rtl_priv *rtlpriv = rtl_priv(hw);
485
486 del_timer_sync(&rtlpriv->works.watchdog_timer);
487
488 cancel_delayed_work(&rtlpriv->works.watchdog_wq);
489 cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq);
490 cancel_delayed_work(&rtlpriv->works.ps_work);
491 cancel_delayed_work(&rtlpriv->works.ps_rfon_wq);
492 cancel_delayed_work(&rtlpriv->works.fwevt_wq);
493 }
494 EXPORT_SYMBOL_GPL(rtl_deinit_deferred_work);
495
496 void rtl_init_rfkill(struct ieee80211_hw *hw)
497 {
498 struct rtl_priv *rtlpriv = rtl_priv(hw);
499
500 bool radio_state;
501 bool blocked;
502 u8 valid = 0;
503
504 /*set init state to on */
505 rtlpriv->rfkill.rfkill_state = true;
506 wiphy_rfkill_set_hw_state(hw->wiphy, 0);
507
508 radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
509
510 if (valid) {
511 pr_info("rtlwifi: wireless switch is %s\n",
512 rtlpriv->rfkill.rfkill_state ? "on" : "off");
513
514 rtlpriv->rfkill.rfkill_state = radio_state;
515
516 blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1;
517 wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
518 }
519
520 wiphy_rfkill_start_polling(hw->wiphy);
521 }
522 EXPORT_SYMBOL(rtl_init_rfkill);
523
524 void rtl_deinit_rfkill(struct ieee80211_hw *hw)
525 {
526 wiphy_rfkill_stop_polling(hw->wiphy);
527 }
528 EXPORT_SYMBOL_GPL(rtl_deinit_rfkill);
529
530 int rtl_init_core(struct ieee80211_hw *hw)
531 {
532 struct rtl_priv *rtlpriv = rtl_priv(hw);
533 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
534
535 /* <1> init mac80211 */
536 _rtl_init_mac80211(hw);
537 rtlmac->hw = hw;
538
539 /* <2> rate control register */
540 hw->rate_control_algorithm = "rtl_rc";
541
542 /*
543 * <3> init CRDA must come after init
544 * mac80211 hw in _rtl_init_mac80211.
545 */
546 if (rtl_regd_init(hw, rtl_reg_notifier)) {
547 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "REGD init failed\n");
548 return 1;
549 }
550
551 /* <4> locks */
552 mutex_init(&rtlpriv->locks.conf_mutex);
553 spin_lock_init(&rtlpriv->locks.ips_lock);
554 spin_lock_init(&rtlpriv->locks.irq_th_lock);
555 spin_lock_init(&rtlpriv->locks.h2c_lock);
556 spin_lock_init(&rtlpriv->locks.rf_ps_lock);
557 spin_lock_init(&rtlpriv->locks.rf_lock);
558 spin_lock_init(&rtlpriv->locks.waitq_lock);
559 spin_lock_init(&rtlpriv->locks.entry_list_lock);
560 spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock);
561 spin_lock_init(&rtlpriv->locks.check_sendpkt_lock);
562 spin_lock_init(&rtlpriv->locks.fw_ps_lock);
563 spin_lock_init(&rtlpriv->locks.lps_lock);
564 spin_lock_init(&rtlpriv->locks.iqk_lock);
565 /* <5> init list */
566 INIT_LIST_HEAD(&rtlpriv->entry_list);
567
568 rtlmac->link_state = MAC80211_NOLINK;
569
570 /* <6> init deferred work */
571 _rtl_init_deferred_work(hw);
572
573 return 0;
574 }
575 EXPORT_SYMBOL_GPL(rtl_init_core);
576
577 void rtl_deinit_core(struct ieee80211_hw *hw)
578 {
579 }
580 EXPORT_SYMBOL_GPL(rtl_deinit_core);
581
582 void rtl_init_rx_config(struct ieee80211_hw *hw)
583 {
584 struct rtl_priv *rtlpriv = rtl_priv(hw);
585 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
586
587 rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf));
588 }
589 EXPORT_SYMBOL_GPL(rtl_init_rx_config);
590
591 /*********************************************************
592 *
593 * tx information functions
594 *
595 *********************************************************/
596 static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw,
597 struct rtl_tcb_desc *tcb_desc,
598 struct ieee80211_tx_info *info)
599 {
600 struct rtl_priv *rtlpriv = rtl_priv(hw);
601 u8 rate_flag = info->control.rates[0].flags;
602
603 tcb_desc->use_shortpreamble = false;
604
605 /* 1M can only use Long Preamble. 11B spec */
606 if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M])
607 return;
608 else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
609 tcb_desc->use_shortpreamble = true;
610
611 return;
612 }
613
614 static void _rtl_query_shortgi(struct ieee80211_hw *hw,
615 struct ieee80211_sta *sta,
616 struct rtl_tcb_desc *tcb_desc,
617 struct ieee80211_tx_info *info)
618 {
619 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
620 u8 rate_flag = info->control.rates[0].flags;
621 u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0;
622 u8 sgi_80 = 0, bw_80 = 0;
623 tcb_desc->use_shortgi = false;
624
625 if (sta == NULL)
626 return;
627
628 sgi_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40;
629 sgi_20 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20;
630 sgi_80 = sta->vht_cap.cap & IEEE80211_VHT_CAP_SHORT_GI_80;
631
632 if ((!sta->ht_cap.ht_supported) && (!sta->vht_cap.vht_supported))
633 return;
634
635 if (!sgi_40 && !sgi_20)
636 return;
637
638 if (mac->opmode == NL80211_IFTYPE_STATION) {
639 bw_40 = mac->bw_40;
640 bw_80 = mac->bw_80;
641 } else if (mac->opmode == NL80211_IFTYPE_AP ||
642 mac->opmode == NL80211_IFTYPE_ADHOC ||
643 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
644 bw_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40;
645 bw_80 = sta->vht_cap.vht_supported;
646 }
647
648 if (bw_80) {
649 if (sgi_80)
650 tcb_desc->use_shortgi = true;
651 else
652 tcb_desc->use_shortgi = false;
653 } else {
654 if (bw_40 && sgi_40)
655 tcb_desc->use_shortgi = true;
656 else if (!bw_40 && sgi_20)
657 tcb_desc->use_shortgi = true;
658 }
659
660 if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI))
661 tcb_desc->use_shortgi = false;
662 }
663
664 static void _rtl_query_protection_mode(struct ieee80211_hw *hw,
665 struct rtl_tcb_desc *tcb_desc,
666 struct ieee80211_tx_info *info)
667 {
668 struct rtl_priv *rtlpriv = rtl_priv(hw);
669 u8 rate_flag = info->control.rates[0].flags;
670
671 /* Common Settings */
672 tcb_desc->rts_stbc = false;
673 tcb_desc->cts_enable = false;
674 tcb_desc->rts_sc = 0;
675 tcb_desc->rts_bw = false;
676 tcb_desc->rts_use_shortpreamble = false;
677 tcb_desc->rts_use_shortgi = false;
678
679 if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) {
680 /* Use CTS-to-SELF in protection mode. */
681 tcb_desc->rts_enable = true;
682 tcb_desc->cts_enable = true;
683 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
684 } else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) {
685 /* Use RTS-CTS in protection mode. */
686 tcb_desc->rts_enable = true;
687 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
688 }
689 }
690
691 static void _rtl_txrate_selectmode(struct ieee80211_hw *hw,
692 struct ieee80211_sta *sta,
693 struct rtl_tcb_desc *tcb_desc)
694 {
695 struct rtl_priv *rtlpriv = rtl_priv(hw);
696 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
697 struct rtl_sta_info *sta_entry = NULL;
698 u8 ratr_index = 7;
699
700 if (sta) {
701 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
702 ratr_index = sta_entry->ratr_index;
703 }
704 if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) {
705 if (mac->opmode == NL80211_IFTYPE_STATION) {
706 tcb_desc->ratr_index = 0;
707 } else if (mac->opmode == NL80211_IFTYPE_ADHOC ||
708 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
709 if (tcb_desc->multicast || tcb_desc->broadcast) {
710 tcb_desc->hw_rate =
711 rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M];
712 tcb_desc->use_driver_rate = 1;
713 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
714 } else {
715 tcb_desc->ratr_index = ratr_index;
716 }
717 } else if (mac->opmode == NL80211_IFTYPE_AP) {
718 tcb_desc->ratr_index = ratr_index;
719 }
720 }
721
722 if (rtlpriv->dm.useramask) {
723 tcb_desc->ratr_index = ratr_index;
724 /* TODO we will differentiate adhoc and station future */
725 if (mac->opmode == NL80211_IFTYPE_STATION ||
726 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
727 tcb_desc->mac_id = 0;
728
729 if (mac->mode == WIRELESS_MODE_AC_5G)
730 tcb_desc->ratr_index =
731 RATR_INX_WIRELESS_AC_5N;
732 else if (mac->mode == WIRELESS_MODE_AC_24G)
733 tcb_desc->ratr_index =
734 RATR_INX_WIRELESS_AC_24N;
735 else if (mac->mode == WIRELESS_MODE_N_24G)
736 tcb_desc->ratr_index = RATR_INX_WIRELESS_NGB;
737 else if (mac->mode == WIRELESS_MODE_N_5G)
738 tcb_desc->ratr_index = RATR_INX_WIRELESS_NG;
739 else if (mac->mode & WIRELESS_MODE_G)
740 tcb_desc->ratr_index = RATR_INX_WIRELESS_GB;
741 else if (mac->mode & WIRELESS_MODE_B)
742 tcb_desc->ratr_index = RATR_INX_WIRELESS_B;
743 else if (mac->mode & WIRELESS_MODE_A)
744 tcb_desc->ratr_index = RATR_INX_WIRELESS_G;
745
746 } else if (mac->opmode == NL80211_IFTYPE_AP ||
747 mac->opmode == NL80211_IFTYPE_ADHOC) {
748 if (NULL != sta) {
749 if (sta->aid > 0)
750 tcb_desc->mac_id = sta->aid + 1;
751 else
752 tcb_desc->mac_id = 1;
753 } else {
754 tcb_desc->mac_id = 0;
755 }
756 }
757 }
758 }
759
760 static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw,
761 struct ieee80211_sta *sta,
762 struct rtl_tcb_desc *tcb_desc)
763 {
764 struct rtl_priv *rtlpriv = rtl_priv(hw);
765 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
766
767 tcb_desc->packet_bw = false;
768 if (!sta)
769 return;
770 if (mac->opmode == NL80211_IFTYPE_AP ||
771 mac->opmode == NL80211_IFTYPE_ADHOC ||
772 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
773 if (!(sta->ht_cap.ht_supported) ||
774 !(sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))
775 return;
776 } else if (mac->opmode == NL80211_IFTYPE_STATION) {
777 if (!mac->bw_40 || !(sta->ht_cap.ht_supported))
778 return;
779 }
780 if (tcb_desc->multicast || tcb_desc->broadcast)
781 return;
782
783 /*use legency rate, shall use 20MHz */
784 if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M])
785 return;
786
787 tcb_desc->packet_bw = HT_CHANNEL_WIDTH_20_40;
788
789 if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8812AE ||
790 rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8821AE) {
791 if (mac->opmode == NL80211_IFTYPE_AP ||
792 mac->opmode == NL80211_IFTYPE_ADHOC ||
793 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
794 if (!(sta->vht_cap.vht_supported))
795 return;
796 } else if (mac->opmode == NL80211_IFTYPE_STATION) {
797 if (!mac->bw_80 ||
798 !(sta->vht_cap.vht_supported))
799 return;
800 }
801 if (tcb_desc->hw_rate <=
802 rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15])
803 return;
804 tcb_desc->packet_bw = HT_CHANNEL_WIDTH_80;
805 }
806 }
807
808 static u8 _rtl_get_vht_highest_n_rate(struct ieee80211_hw *hw,
809 struct ieee80211_sta *sta)
810 {
811 struct rtl_priv *rtlpriv = rtl_priv(hw);
812 struct rtl_phy *rtlphy = &(rtlpriv->phy);
813 u8 hw_rate;
814 u16 tx_mcs_map = le16_to_cpu(sta->vht_cap.vht_mcs.tx_mcs_map);
815
816 if ((get_rf_type(rtlphy) == RF_2T2R) &&
817 (tx_mcs_map & 0x000c) != 0x000c) {
818 if ((tx_mcs_map & 0x000c) >> 2 ==
819 IEEE80211_VHT_MCS_SUPPORT_0_7)
820 hw_rate =
821 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS7];
822 else if ((tx_mcs_map & 0x000c) >> 2 ==
823 IEEE80211_VHT_MCS_SUPPORT_0_8)
824 hw_rate =
825 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
826 else
827 hw_rate =
828 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
829 } else {
830 if ((tx_mcs_map & 0x0003) ==
831 IEEE80211_VHT_MCS_SUPPORT_0_7)
832 hw_rate =
833 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS7];
834 else if ((tx_mcs_map & 0x0003) ==
835 IEEE80211_VHT_MCS_SUPPORT_0_8)
836 hw_rate =
837 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
838 else
839 hw_rate =
840 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
841 }
842
843 return hw_rate;
844 }
845
846 static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw,
847 struct ieee80211_sta *sta)
848 {
849 struct rtl_priv *rtlpriv = rtl_priv(hw);
850 struct rtl_phy *rtlphy = &rtlpriv->phy;
851 u8 hw_rate;
852
853 if ((get_rf_type(rtlphy) == RF_2T2R) &&
854 (sta->ht_cap.mcs.rx_mask[1] != 0))
855 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15];
856 else
857 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7];
858
859 return hw_rate;
860 }
861
862 /* mac80211's rate_idx is like this:
863 *
864 * 2.4G band:rx_status->band == IEEE80211_BAND_2GHZ
865 *
866 * B/G rate:
867 * (rx_status->flag & RX_FLAG_HT) = 0,
868 * DESC_RATE1M-->DESC_RATE54M ==> idx is 0-->11,
869 *
870 * N rate:
871 * (rx_status->flag & RX_FLAG_HT) = 1,
872 * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
873 *
874 * 5G band:rx_status->band == IEEE80211_BAND_5GHZ
875 * A rate:
876 * (rx_status->flag & RX_FLAG_HT) = 0,
877 * DESC_RATE6M-->DESC_RATE54M ==> idx is 0-->7,
878 *
879 * N rate:
880 * (rx_status->flag & RX_FLAG_HT) = 1,
881 * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
882 *
883 * VHT rates:
884 * DESC_RATEVHT1SS_MCS0-->DESC_RATEVHT1SS_MCS9 ==> idx is 0-->9
885 * DESC_RATEVHT2SS_MCS0-->DESC_RATEVHT2SS_MCS9 ==> idx is 0-->9
886 */
887 int rtlwifi_rate_mapping(struct ieee80211_hw *hw, bool isht, bool isvht,
888 u8 desc_rate)
889 {
890 int rate_idx;
891
892 if (isvht) {
893 switch (desc_rate) {
894 case DESC_RATEVHT1SS_MCS0:
895 rate_idx = 0;
896 break;
897 case DESC_RATEVHT1SS_MCS1:
898 rate_idx = 1;
899 break;
900 case DESC_RATEVHT1SS_MCS2:
901 rate_idx = 2;
902 break;
903 case DESC_RATEVHT1SS_MCS3:
904 rate_idx = 3;
905 break;
906 case DESC_RATEVHT1SS_MCS4:
907 rate_idx = 4;
908 break;
909 case DESC_RATEVHT1SS_MCS5:
910 rate_idx = 5;
911 break;
912 case DESC_RATEVHT1SS_MCS6:
913 rate_idx = 6;
914 break;
915 case DESC_RATEVHT1SS_MCS7:
916 rate_idx = 7;
917 break;
918 case DESC_RATEVHT1SS_MCS8:
919 rate_idx = 8;
920 break;
921 case DESC_RATEVHT1SS_MCS9:
922 rate_idx = 9;
923 break;
924 case DESC_RATEVHT2SS_MCS0:
925 rate_idx = 0;
926 break;
927 case DESC_RATEVHT2SS_MCS1:
928 rate_idx = 1;
929 break;
930 case DESC_RATEVHT2SS_MCS2:
931 rate_idx = 2;
932 break;
933 case DESC_RATEVHT2SS_MCS3:
934 rate_idx = 3;
935 break;
936 case DESC_RATEVHT2SS_MCS4:
937 rate_idx = 4;
938 break;
939 case DESC_RATEVHT2SS_MCS5:
940 rate_idx = 5;
941 break;
942 case DESC_RATEVHT2SS_MCS6:
943 rate_idx = 6;
944 break;
945 case DESC_RATEVHT2SS_MCS7:
946 rate_idx = 7;
947 break;
948 case DESC_RATEVHT2SS_MCS8:
949 rate_idx = 8;
950 break;
951 case DESC_RATEVHT2SS_MCS9:
952 rate_idx = 9;
953 break;
954 default:
955 rate_idx = 0;
956 break;
957 }
958 return rate_idx;
959 }
960 if (false == isht) {
961 if (IEEE80211_BAND_2GHZ == hw->conf.chandef.chan->band) {
962 switch (desc_rate) {
963 case DESC_RATE1M:
964 rate_idx = 0;
965 break;
966 case DESC_RATE2M:
967 rate_idx = 1;
968 break;
969 case DESC_RATE5_5M:
970 rate_idx = 2;
971 break;
972 case DESC_RATE11M:
973 rate_idx = 3;
974 break;
975 case DESC_RATE6M:
976 rate_idx = 4;
977 break;
978 case DESC_RATE9M:
979 rate_idx = 5;
980 break;
981 case DESC_RATE12M:
982 rate_idx = 6;
983 break;
984 case DESC_RATE18M:
985 rate_idx = 7;
986 break;
987 case DESC_RATE24M:
988 rate_idx = 8;
989 break;
990 case DESC_RATE36M:
991 rate_idx = 9;
992 break;
993 case DESC_RATE48M:
994 rate_idx = 10;
995 break;
996 case DESC_RATE54M:
997 rate_idx = 11;
998 break;
999 default:
1000 rate_idx = 0;
1001 break;
1002 }
1003 } else {
1004 switch (desc_rate) {
1005 case DESC_RATE6M:
1006 rate_idx = 0;
1007 break;
1008 case DESC_RATE9M:
1009 rate_idx = 1;
1010 break;
1011 case DESC_RATE12M:
1012 rate_idx = 2;
1013 break;
1014 case DESC_RATE18M:
1015 rate_idx = 3;
1016 break;
1017 case DESC_RATE24M:
1018 rate_idx = 4;
1019 break;
1020 case DESC_RATE36M:
1021 rate_idx = 5;
1022 break;
1023 case DESC_RATE48M:
1024 rate_idx = 6;
1025 break;
1026 case DESC_RATE54M:
1027 rate_idx = 7;
1028 break;
1029 default:
1030 rate_idx = 0;
1031 break;
1032 }
1033 }
1034 } else {
1035 switch (desc_rate) {
1036 case DESC_RATEMCS0:
1037 rate_idx = 0;
1038 break;
1039 case DESC_RATEMCS1:
1040 rate_idx = 1;
1041 break;
1042 case DESC_RATEMCS2:
1043 rate_idx = 2;
1044 break;
1045 case DESC_RATEMCS3:
1046 rate_idx = 3;
1047 break;
1048 case DESC_RATEMCS4:
1049 rate_idx = 4;
1050 break;
1051 case DESC_RATEMCS5:
1052 rate_idx = 5;
1053 break;
1054 case DESC_RATEMCS6:
1055 rate_idx = 6;
1056 break;
1057 case DESC_RATEMCS7:
1058 rate_idx = 7;
1059 break;
1060 case DESC_RATEMCS8:
1061 rate_idx = 8;
1062 break;
1063 case DESC_RATEMCS9:
1064 rate_idx = 9;
1065 break;
1066 case DESC_RATEMCS10:
1067 rate_idx = 10;
1068 break;
1069 case DESC_RATEMCS11:
1070 rate_idx = 11;
1071 break;
1072 case DESC_RATEMCS12:
1073 rate_idx = 12;
1074 break;
1075 case DESC_RATEMCS13:
1076 rate_idx = 13;
1077 break;
1078 case DESC_RATEMCS14:
1079 rate_idx = 14;
1080 break;
1081 case DESC_RATEMCS15:
1082 rate_idx = 15;
1083 break;
1084 default:
1085 rate_idx = 0;
1086 break;
1087 }
1088 }
1089 return rate_idx;
1090 }
1091 EXPORT_SYMBOL(rtlwifi_rate_mapping);
1092
1093 void rtl_get_tcb_desc(struct ieee80211_hw *hw,
1094 struct ieee80211_tx_info *info,
1095 struct ieee80211_sta *sta,
1096 struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc)
1097 {
1098 struct rtl_priv *rtlpriv = rtl_priv(hw);
1099 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
1100 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1101 struct ieee80211_rate *txrate;
1102 __le16 fc = rtl_get_fc(skb);
1103
1104 txrate = ieee80211_get_tx_rate(hw, info);
1105 if (txrate)
1106 tcb_desc->hw_rate = txrate->hw_value;
1107
1108 if (ieee80211_is_data(fc)) {
1109 /*
1110 *we set data rate INX 0
1111 *in rtl_rc.c if skb is special data or
1112 *mgt which need low data rate.
1113 */
1114
1115 /*
1116 *So tcb_desc->hw_rate is just used for
1117 *special data and mgt frames
1118 */
1119 if (info->control.rates[0].idx == 0 ||
1120 ieee80211_is_nullfunc(fc)) {
1121 tcb_desc->use_driver_rate = true;
1122 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
1123
1124 tcb_desc->disable_ratefallback = 1;
1125 } else {
1126 /*
1127 *because hw will nerver use hw_rate
1128 *when tcb_desc->use_driver_rate = false
1129 *so we never set highest N rate here,
1130 *and N rate will all be controlled by FW
1131 *when tcb_desc->use_driver_rate = false
1132 */
1133 if (sta && sta->vht_cap.vht_supported) {
1134 tcb_desc->hw_rate =
1135 _rtl_get_vht_highest_n_rate(hw, sta);
1136 } else {
1137 if (sta && (sta->ht_cap.ht_supported)) {
1138 tcb_desc->hw_rate =
1139 _rtl_get_highest_n_rate(hw, sta);
1140 } else {
1141 if (rtlmac->mode == WIRELESS_MODE_B) {
1142 tcb_desc->hw_rate =
1143 rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M];
1144 } else {
1145 tcb_desc->hw_rate =
1146 rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M];
1147 }
1148 }
1149 }
1150 }
1151
1152 if (is_multicast_ether_addr(ieee80211_get_DA(hdr)))
1153 tcb_desc->multicast = 1;
1154 else if (is_broadcast_ether_addr(ieee80211_get_DA(hdr)))
1155 tcb_desc->broadcast = 1;
1156
1157 _rtl_txrate_selectmode(hw, sta, tcb_desc);
1158 _rtl_query_bandwidth_mode(hw, sta, tcb_desc);
1159 _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info);
1160 _rtl_query_shortgi(hw, sta, tcb_desc, info);
1161 _rtl_query_protection_mode(hw, tcb_desc, info);
1162 } else {
1163 tcb_desc->use_driver_rate = true;
1164 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
1165 tcb_desc->disable_ratefallback = 1;
1166 tcb_desc->mac_id = 0;
1167 tcb_desc->packet_bw = false;
1168 }
1169 }
1170 EXPORT_SYMBOL(rtl_get_tcb_desc);
1171
1172 bool rtl_tx_mgmt_proc(struct ieee80211_hw *hw, struct sk_buff *skb)
1173 {
1174 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1175 struct rtl_priv *rtlpriv = rtl_priv(hw);
1176 __le16 fc = rtl_get_fc(skb);
1177
1178 if (rtlpriv->dm.supp_phymode_switch &&
1179 mac->link_state < MAC80211_LINKED &&
1180 (ieee80211_is_auth(fc) || ieee80211_is_probe_req(fc))) {
1181 if (rtlpriv->cfg->ops->chk_switch_dmdp)
1182 rtlpriv->cfg->ops->chk_switch_dmdp(hw);
1183 }
1184 if (ieee80211_is_auth(fc)) {
1185 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n");
1186 rtl_ips_nic_on(hw);
1187
1188 mac->link_state = MAC80211_LINKING;
1189 /* Dul mac */
1190 rtlpriv->phy.need_iqk = true;
1191
1192 }
1193
1194 return true;
1195 }
1196 EXPORT_SYMBOL_GPL(rtl_tx_mgmt_proc);
1197
1198 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw, u8 *sa,
1199 u8 *bssid, u16 tid);
1200
1201 static void process_agg_start(struct ieee80211_hw *hw,
1202 struct ieee80211_hdr *hdr, u16 tid)
1203 {
1204 struct rtl_priv *rtlpriv = rtl_priv(hw);
1205 struct ieee80211_rx_status rx_status = { 0 };
1206 struct sk_buff *skb_delba = NULL;
1207
1208 skb_delba = rtl_make_del_ba(hw, hdr->addr2, hdr->addr3, tid);
1209 if (skb_delba) {
1210 rx_status.freq = hw->conf.chandef.chan->center_freq;
1211 rx_status.band = hw->conf.chandef.chan->band;
1212 rx_status.flag |= RX_FLAG_DECRYPTED;
1213 rx_status.flag |= RX_FLAG_MACTIME_START;
1214 rx_status.rate_idx = 0;
1215 rx_status.signal = 50 + 10;
1216 memcpy(IEEE80211_SKB_RXCB(skb_delba),
1217 &rx_status, sizeof(rx_status));
1218 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG,
1219 "fake del\n",
1220 skb_delba->data,
1221 skb_delba->len);
1222 ieee80211_rx_irqsafe(hw, skb_delba);
1223 }
1224 }
1225
1226 bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
1227 {
1228 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1229 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1230 struct rtl_priv *rtlpriv = rtl_priv(hw);
1231 __le16 fc = rtl_get_fc(skb);
1232 u8 *act = (u8 *)(((u8 *)skb->data + MAC80211_3ADDR_LEN));
1233 u8 category;
1234
1235 if (!ieee80211_is_action(fc))
1236 return true;
1237
1238 category = *act;
1239 act++;
1240 switch (category) {
1241 case ACT_CAT_BA:
1242 switch (*act) {
1243 case ACT_ADDBAREQ:
1244 if (mac->act_scanning)
1245 return false;
1246
1247 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1248 "%s ACT_ADDBAREQ From :%pM\n",
1249 is_tx ? "Tx" : "Rx", hdr->addr2);
1250 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, "req\n",
1251 skb->data, skb->len);
1252 if (!is_tx) {
1253 struct ieee80211_sta *sta = NULL;
1254 struct rtl_sta_info *sta_entry = NULL;
1255 struct rtl_tid_data *tid_data;
1256 struct ieee80211_mgmt *mgmt = (void *)skb->data;
1257 u16 capab = 0, tid = 0;
1258
1259 rcu_read_lock();
1260 sta = rtl_find_sta(hw, hdr->addr3);
1261 if (sta == NULL) {
1262 RT_TRACE(rtlpriv, COMP_SEND | COMP_RECV,
1263 DBG_DMESG, "sta is NULL\n");
1264 rcu_read_unlock();
1265 return true;
1266 }
1267
1268 sta_entry =
1269 (struct rtl_sta_info *)sta->drv_priv;
1270 if (!sta_entry) {
1271 rcu_read_unlock();
1272 return true;
1273 }
1274 capab =
1275 le16_to_cpu(mgmt->u.action.u.addba_req.capab);
1276 tid = (capab &
1277 IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
1278 tid_data = &sta_entry->tids[tid];
1279 if (tid_data->agg.rx_agg_state ==
1280 RTL_RX_AGG_START)
1281 process_agg_start(hw, hdr, tid);
1282 rcu_read_unlock();
1283 }
1284 break;
1285 case ACT_ADDBARSP:
1286 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1287 "%s ACT_ADDBARSP From :%pM\n",
1288 is_tx ? "Tx" : "Rx", hdr->addr2);
1289 break;
1290 case ACT_DELBA:
1291 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1292 "ACT_ADDBADEL From :%pM\n", hdr->addr2);
1293 break;
1294 }
1295 break;
1296 default:
1297 break;
1298 }
1299
1300 return true;
1301 }
1302 EXPORT_SYMBOL_GPL(rtl_action_proc);
1303
1304 static void setup_arp_tx(struct rtl_priv *rtlpriv, struct rtl_ps_ctl *ppsc)
1305 {
1306 rtlpriv->ra.is_special_data = true;
1307 if (rtlpriv->cfg->ops->get_btc_status())
1308 rtlpriv->btcoexist.btc_ops->btc_special_packet_notify(
1309 rtlpriv, 1);
1310 rtlpriv->enter_ps = false;
1311 schedule_work(&rtlpriv->works.lps_change_work);
1312 ppsc->last_delaylps_stamp_jiffies = jiffies;
1313 }
1314
1315 /*should call before software enc*/
1316 u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx,
1317 bool is_enc)
1318 {
1319 struct rtl_priv *rtlpriv = rtl_priv(hw);
1320 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1321 __le16 fc = rtl_get_fc(skb);
1322 u16 ether_type;
1323 u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb);
1324 u8 encrypt_header_len = 0;
1325 u8 offset;
1326 const struct iphdr *ip;
1327
1328 if (!ieee80211_is_data(fc))
1329 goto end;
1330
1331 switch (rtlpriv->sec.pairwise_enc_algorithm) {
1332 case WEP40_ENCRYPTION:
1333 case WEP104_ENCRYPTION:
1334 encrypt_header_len = 4;/*WEP_IV_LEN*/
1335 break;
1336 case TKIP_ENCRYPTION:
1337 encrypt_header_len = 8;/*TKIP_IV_LEN*/
1338 break;
1339 case AESCCMP_ENCRYPTION:
1340 encrypt_header_len = 8;/*CCMP_HDR_LEN;*/
1341 break;
1342 default:
1343 break;
1344 }
1345
1346 offset = mac_hdr_len + SNAP_SIZE;
1347 if (is_enc)
1348 offset += encrypt_header_len;
1349 ether_type = be16_to_cpup((__be16 *)(skb->data + offset));
1350
1351 if (ETH_P_IP == ether_type) {
1352 ip = (struct iphdr *)((u8 *)skb->data + offset +
1353 PROTOC_TYPE_SIZE);
1354 if (IPPROTO_UDP == ip->protocol) {
1355 struct udphdr *udp = (struct udphdr *)((u8 *)ip +
1356 (ip->ihl << 2));
1357 if (((((u8 *)udp)[1] == 68) &&
1358 (((u8 *)udp)[3] == 67)) ||
1359 ((((u8 *)udp)[1] == 67) &&
1360 (((u8 *)udp)[3] == 68))) {
1361 /* 68 : UDP BOOTP client
1362 * 67 : UDP BOOTP server
1363 */
1364 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV),
1365 DBG_DMESG, "dhcp %s !!\n",
1366 (is_tx) ? "Tx" : "Rx");
1367
1368 if (is_tx)
1369 setup_arp_tx(rtlpriv, ppsc);
1370 return true;
1371 }
1372 }
1373 } else if (ETH_P_ARP == ether_type) {
1374 if (is_tx)
1375 setup_arp_tx(rtlpriv, ppsc);
1376
1377 return true;
1378 } else if (ETH_P_PAE == ether_type) {
1379 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1380 "802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx");
1381
1382 if (is_tx) {
1383 rtlpriv->ra.is_special_data = true;
1384 rtlpriv->enter_ps = false;
1385 schedule_work(&rtlpriv->works.lps_change_work);
1386 ppsc->last_delaylps_stamp_jiffies = jiffies;
1387 }
1388
1389 return true;
1390 } else if (ETH_P_IPV6 == ether_type) {
1391 /* TODO: Handle any IPv6 cases that need special handling.
1392 * For now, always return false
1393 */
1394 goto end;
1395 }
1396
1397 end:
1398 rtlpriv->ra.is_special_data = false;
1399 return false;
1400 }
1401 EXPORT_SYMBOL_GPL(rtl_is_special_data);
1402
1403 /*********************************************************
1404 *
1405 * functions called by core.c
1406 *
1407 *********************************************************/
1408 int rtl_tx_agg_start(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1409 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
1410 {
1411 struct rtl_priv *rtlpriv = rtl_priv(hw);
1412 struct rtl_tid_data *tid_data;
1413 struct rtl_sta_info *sta_entry = NULL;
1414
1415 if (sta == NULL)
1416 return -EINVAL;
1417
1418 if (unlikely(tid >= MAX_TID_COUNT))
1419 return -EINVAL;
1420
1421 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1422 if (!sta_entry)
1423 return -ENXIO;
1424 tid_data = &sta_entry->tids[tid];
1425
1426 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1427 "on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1428 tid_data->seq_number);
1429
1430 *ssn = tid_data->seq_number;
1431 tid_data->agg.agg_state = RTL_AGG_START;
1432
1433 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1434 return 0;
1435 }
1436
1437 int rtl_tx_agg_stop(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1438 struct ieee80211_sta *sta, u16 tid)
1439 {
1440 struct rtl_priv *rtlpriv = rtl_priv(hw);
1441 struct rtl_tid_data *tid_data;
1442 struct rtl_sta_info *sta_entry = NULL;
1443
1444 if (sta == NULL)
1445 return -EINVAL;
1446
1447 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1448 "on ra = %pM tid = %d\n", sta->addr, tid);
1449
1450 if (unlikely(tid >= MAX_TID_COUNT))
1451 return -EINVAL;
1452
1453 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1454 tid_data = &sta_entry->tids[tid];
1455 sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP;
1456
1457 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1458 return 0;
1459 }
1460
1461 int rtl_rx_agg_start(struct ieee80211_hw *hw,
1462 struct ieee80211_sta *sta, u16 tid)
1463 {
1464 struct rtl_priv *rtlpriv = rtl_priv(hw);
1465 struct rtl_tid_data *tid_data;
1466 struct rtl_sta_info *sta_entry = NULL;
1467
1468 if (sta == NULL)
1469 return -EINVAL;
1470
1471 if (unlikely(tid >= MAX_TID_COUNT))
1472 return -EINVAL;
1473
1474 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1475 if (!sta_entry)
1476 return -ENXIO;
1477 tid_data = &sta_entry->tids[tid];
1478
1479 RT_TRACE(rtlpriv, COMP_RECV, DBG_DMESG,
1480 "on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1481 tid_data->seq_number);
1482
1483 tid_data->agg.rx_agg_state = RTL_RX_AGG_START;
1484 return 0;
1485 }
1486
1487 int rtl_rx_agg_stop(struct ieee80211_hw *hw,
1488 struct ieee80211_sta *sta, u16 tid)
1489 {
1490 struct rtl_priv *rtlpriv = rtl_priv(hw);
1491 struct rtl_sta_info *sta_entry = NULL;
1492
1493 if (sta == NULL)
1494 return -EINVAL;
1495
1496 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1497 "on ra = %pM tid = %d\n", sta->addr, tid);
1498
1499 if (unlikely(tid >= MAX_TID_COUNT))
1500 return -EINVAL;
1501
1502 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1503 sta_entry->tids[tid].agg.rx_agg_state = RTL_RX_AGG_STOP;
1504
1505 return 0;
1506 }
1507 int rtl_tx_agg_oper(struct ieee80211_hw *hw,
1508 struct ieee80211_sta *sta, u16 tid)
1509 {
1510 struct rtl_priv *rtlpriv = rtl_priv(hw);
1511 struct rtl_sta_info *sta_entry = NULL;
1512
1513 if (sta == NULL)
1514 return -EINVAL;
1515
1516 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1517 "on ra = %pM tid = %d\n", sta->addr, tid);
1518
1519 if (unlikely(tid >= MAX_TID_COUNT))
1520 return -EINVAL;
1521
1522 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1523 sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL;
1524
1525 return 0;
1526 }
1527
1528 /*********************************************************
1529 *
1530 * wq & timer callback functions
1531 *
1532 *********************************************************/
1533 /* this function is used for roaming */
1534 void rtl_beacon_statistic(struct ieee80211_hw *hw, struct sk_buff *skb)
1535 {
1536 struct rtl_priv *rtlpriv = rtl_priv(hw);
1537 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1538
1539 if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION)
1540 return;
1541
1542 if (rtlpriv->mac80211.link_state < MAC80211_LINKED)
1543 return;
1544
1545 /* check if this really is a beacon */
1546 if (!ieee80211_is_beacon(hdr->frame_control) &&
1547 !ieee80211_is_probe_resp(hdr->frame_control))
1548 return;
1549
1550 /* min. beacon length + FCS_LEN */
1551 if (skb->len <= 40 + FCS_LEN)
1552 return;
1553
1554 /* and only beacons from the associated BSSID, please */
1555 if (!ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid))
1556 return;
1557
1558 rtlpriv->link_info.bcn_rx_inperiod++;
1559 }
1560 EXPORT_SYMBOL_GPL(rtl_beacon_statistic);
1561
1562 void rtl_watchdog_wq_callback(void *data)
1563 {
1564 struct rtl_works *rtlworks = container_of_dwork_rtl(data,
1565 struct rtl_works,
1566 watchdog_wq);
1567 struct ieee80211_hw *hw = rtlworks->hw;
1568 struct rtl_priv *rtlpriv = rtl_priv(hw);
1569 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1570 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1571 bool busytraffic = false;
1572 bool tx_busy_traffic = false;
1573 bool rx_busy_traffic = false;
1574 bool higher_busytraffic = false;
1575 bool higher_busyrxtraffic = false;
1576 u8 idx, tid;
1577 u32 rx_cnt_inp4eriod = 0;
1578 u32 tx_cnt_inp4eriod = 0;
1579 u32 aver_rx_cnt_inperiod = 0;
1580 u32 aver_tx_cnt_inperiod = 0;
1581 u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0};
1582 u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0};
1583
1584 if (is_hal_stop(rtlhal))
1585 return;
1586
1587 /* <1> Determine if action frame is allowed */
1588 if (mac->link_state > MAC80211_NOLINK) {
1589 if (mac->cnt_after_linked < 20)
1590 mac->cnt_after_linked++;
1591 } else {
1592 mac->cnt_after_linked = 0;
1593 }
1594
1595 /* <2> to check if traffic busy, if
1596 * busytraffic we don't change channel
1597 */
1598 if (mac->link_state >= MAC80211_LINKED) {
1599
1600 /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */
1601 for (idx = 0; idx <= 2; idx++) {
1602 rtlpriv->link_info.num_rx_in4period[idx] =
1603 rtlpriv->link_info.num_rx_in4period[idx + 1];
1604 rtlpriv->link_info.num_tx_in4period[idx] =
1605 rtlpriv->link_info.num_tx_in4period[idx + 1];
1606 }
1607 rtlpriv->link_info.num_rx_in4period[3] =
1608 rtlpriv->link_info.num_rx_inperiod;
1609 rtlpriv->link_info.num_tx_in4period[3] =
1610 rtlpriv->link_info.num_tx_inperiod;
1611 for (idx = 0; idx <= 3; idx++) {
1612 rx_cnt_inp4eriod +=
1613 rtlpriv->link_info.num_rx_in4period[idx];
1614 tx_cnt_inp4eriod +=
1615 rtlpriv->link_info.num_tx_in4period[idx];
1616 }
1617 aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4;
1618 aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4;
1619
1620 /* (2) check traffic busy */
1621 if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) {
1622 busytraffic = true;
1623 if (aver_rx_cnt_inperiod > aver_tx_cnt_inperiod)
1624 rx_busy_traffic = true;
1625 else
1626 tx_busy_traffic = false;
1627 }
1628
1629 /* Higher Tx/Rx data. */
1630 if (aver_rx_cnt_inperiod > 4000 ||
1631 aver_tx_cnt_inperiod > 4000) {
1632 higher_busytraffic = true;
1633
1634 /* Extremely high Rx data. */
1635 if (aver_rx_cnt_inperiod > 5000)
1636 higher_busyrxtraffic = true;
1637 }
1638
1639 /* check every tid's tx traffic */
1640 for (tid = 0; tid <= 7; tid++) {
1641 for (idx = 0; idx <= 2; idx++)
1642 rtlpriv->link_info.tidtx_in4period[tid][idx] =
1643 rtlpriv->link_info.tidtx_in4period[tid]
1644 [idx + 1];
1645 rtlpriv->link_info.tidtx_in4period[tid][3] =
1646 rtlpriv->link_info.tidtx_inperiod[tid];
1647
1648 for (idx = 0; idx <= 3; idx++)
1649 tidtx_inp4eriod[tid] +=
1650 rtlpriv->link_info.tidtx_in4period[tid][idx];
1651 aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4;
1652 if (aver_tidtx_inperiod[tid] > 5000)
1653 rtlpriv->link_info.higher_busytxtraffic[tid] =
1654 true;
1655 else
1656 rtlpriv->link_info.higher_busytxtraffic[tid] =
1657 false;
1658 }
1659
1660 if (((rtlpriv->link_info.num_rx_inperiod +
1661 rtlpriv->link_info.num_tx_inperiod) > 8) ||
1662 (rtlpriv->link_info.num_rx_inperiod > 2))
1663 rtl_lps_enter(hw);
1664 else
1665 rtl_lps_leave(hw);
1666 }
1667
1668 rtlpriv->link_info.num_rx_inperiod = 0;
1669 rtlpriv->link_info.num_tx_inperiod = 0;
1670 for (tid = 0; tid <= 7; tid++)
1671 rtlpriv->link_info.tidtx_inperiod[tid] = 0;
1672
1673 rtlpriv->link_info.busytraffic = busytraffic;
1674 rtlpriv->link_info.higher_busytraffic = higher_busytraffic;
1675 rtlpriv->link_info.rx_busy_traffic = rx_busy_traffic;
1676 rtlpriv->link_info.tx_busy_traffic = tx_busy_traffic;
1677 rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic;
1678
1679 /* <3> DM */
1680 if (!rtlpriv->cfg->mod_params->disable_watchdog)
1681 rtlpriv->cfg->ops->dm_watchdog(hw);
1682
1683 /* <4> roaming */
1684 if (mac->link_state == MAC80211_LINKED &&
1685 mac->opmode == NL80211_IFTYPE_STATION) {
1686 if ((rtlpriv->link_info.bcn_rx_inperiod +
1687 rtlpriv->link_info.num_rx_inperiod) == 0) {
1688 rtlpriv->link_info.roam_times++;
1689 RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG,
1690 "AP off for %d s\n",
1691 (rtlpriv->link_info.roam_times * 2));
1692
1693 /* if we can't recv beacon for 10s,
1694 * we should reconnect this AP
1695 */
1696 if (rtlpriv->link_info.roam_times >= 5) {
1697 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1698 "AP off, try to reconnect now\n");
1699 rtlpriv->link_info.roam_times = 0;
1700 ieee80211_connection_loss(
1701 rtlpriv->mac80211.vif);
1702 }
1703 } else {
1704 rtlpriv->link_info.roam_times = 0;
1705 }
1706 }
1707
1708 if (rtlpriv->cfg->ops->get_btc_status())
1709 rtlpriv->btcoexist.btc_ops->btc_periodical(rtlpriv);
1710
1711 rtlpriv->link_info.bcn_rx_inperiod = 0;
1712 }
1713
1714 void rtl_watch_dog_timer_callback(unsigned long data)
1715 {
1716 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
1717 struct rtl_priv *rtlpriv = rtl_priv(hw);
1718
1719 queue_delayed_work(rtlpriv->works.rtl_wq,
1720 &rtlpriv->works.watchdog_wq, 0);
1721
1722 mod_timer(&rtlpriv->works.watchdog_timer,
1723 jiffies + MSECS(RTL_WATCH_DOG_TIME));
1724 }
1725 void rtl_fwevt_wq_callback(void *data)
1726 {
1727 struct rtl_works *rtlworks =
1728 container_of_dwork_rtl(data, struct rtl_works, fwevt_wq);
1729 struct ieee80211_hw *hw = rtlworks->hw;
1730 struct rtl_priv *rtlpriv = rtl_priv(hw);
1731
1732 rtlpriv->cfg->ops->c2h_command_handle(hw);
1733 }
1734 void rtl_easy_concurrent_retrytimer_callback(unsigned long data)
1735 {
1736 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
1737 struct rtl_priv *rtlpriv = rtl_priv(hw);
1738 struct rtl_priv *buddy_priv = rtlpriv->buddy_priv;
1739
1740 if (buddy_priv == NULL)
1741 return;
1742
1743 rtlpriv->cfg->ops->dualmac_easy_concurrent(hw);
1744 }
1745 /*********************************************************
1746 *
1747 * frame process functions
1748 *
1749 *********************************************************/
1750 u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie)
1751 {
1752 struct ieee80211_mgmt *mgmt = (void *)data;
1753 u8 *pos, *end;
1754
1755 pos = (u8 *)mgmt->u.beacon.variable;
1756 end = data + len;
1757 while (pos < end) {
1758 if (pos + 2 + pos[1] > end)
1759 return NULL;
1760
1761 if (pos[0] == ie)
1762 return pos;
1763
1764 pos += 2 + pos[1];
1765 }
1766 return NULL;
1767 }
1768
1769 /* when we use 2 rx ants we send IEEE80211_SMPS_OFF */
1770 /* when we use 1 rx ant we send IEEE80211_SMPS_STATIC */
1771 static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw,
1772 enum ieee80211_smps_mode smps,
1773 u8 *da, u8 *bssid)
1774 {
1775 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1776 struct sk_buff *skb;
1777 struct ieee80211_mgmt *action_frame;
1778
1779 /* 27 = header + category + action + smps mode */
1780 skb = dev_alloc_skb(27 + hw->extra_tx_headroom);
1781 if (!skb)
1782 return NULL;
1783
1784 skb_reserve(skb, hw->extra_tx_headroom);
1785 action_frame = (void *)skb_put(skb, 27);
1786 memset(action_frame, 0, 27);
1787 memcpy(action_frame->da, da, ETH_ALEN);
1788 memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN);
1789 memcpy(action_frame->bssid, bssid, ETH_ALEN);
1790 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1791 IEEE80211_STYPE_ACTION);
1792 action_frame->u.action.category = WLAN_CATEGORY_HT;
1793 action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS;
1794 switch (smps) {
1795 case IEEE80211_SMPS_AUTOMATIC:/* 0 */
1796 case IEEE80211_SMPS_NUM_MODES:/* 4 */
1797 WARN_ON(1);
1798 /* Here will get a 'MISSING_BREAK' in Coverity Test, just ignore it.
1799 * According to Kernel Code, here is right.
1800 */
1801 case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/
1802 action_frame->u.action.u.ht_smps.smps_control =
1803 WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */
1804 break;
1805 case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/
1806 action_frame->u.action.u.ht_smps.smps_control =
1807 WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */
1808 break;
1809 case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/
1810 action_frame->u.action.u.ht_smps.smps_control =
1811 WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */
1812 break;
1813 }
1814
1815 return skb;
1816 }
1817
1818 int rtl_send_smps_action(struct ieee80211_hw *hw,
1819 struct ieee80211_sta *sta,
1820 enum ieee80211_smps_mode smps)
1821 {
1822 struct rtl_priv *rtlpriv = rtl_priv(hw);
1823 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1824 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1825 struct sk_buff *skb = NULL;
1826 struct rtl_tcb_desc tcb_desc;
1827 u8 bssid[ETH_ALEN] = {0};
1828
1829 memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
1830
1831 if (rtlpriv->mac80211.act_scanning)
1832 goto err_free;
1833
1834 if (!sta)
1835 goto err_free;
1836
1837 if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
1838 goto err_free;
1839
1840 if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
1841 goto err_free;
1842
1843 if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP)
1844 memcpy(bssid, rtlpriv->efuse.dev_addr, ETH_ALEN);
1845 else
1846 memcpy(bssid, rtlpriv->mac80211.bssid, ETH_ALEN);
1847
1848 skb = rtl_make_smps_action(hw, smps, sta->addr, bssid);
1849 /* this is a type = mgmt * stype = action frame */
1850 if (skb) {
1851 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1852 struct rtl_sta_info *sta_entry =
1853 (struct rtl_sta_info *) sta->drv_priv;
1854 sta_entry->mimo_ps = smps;
1855 /* rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0); */
1856
1857 info->control.rates[0].idx = 0;
1858 info->band = hw->conf.chandef.chan->band;
1859 rtlpriv->intf_ops->adapter_tx(hw, sta, skb, &tcb_desc);
1860 }
1861 return 1;
1862
1863 err_free:
1864 return 0;
1865 }
1866 EXPORT_SYMBOL(rtl_send_smps_action);
1867
1868 void rtl_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation)
1869 {
1870 struct rtl_priv *rtlpriv = rtl_priv(hw);
1871 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1872 enum io_type iotype;
1873
1874 if (!is_hal_stop(rtlhal)) {
1875 switch (operation) {
1876 case SCAN_OPT_BACKUP:
1877 iotype = IO_CMD_PAUSE_DM_BY_SCAN;
1878 rtlpriv->cfg->ops->set_hw_reg(hw,
1879 HW_VAR_IO_CMD,
1880 (u8 *)&iotype);
1881 break;
1882 case SCAN_OPT_RESTORE:
1883 iotype = IO_CMD_RESUME_DM_BY_SCAN;
1884 rtlpriv->cfg->ops->set_hw_reg(hw,
1885 HW_VAR_IO_CMD,
1886 (u8 *)&iotype);
1887 break;
1888 default:
1889 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1890 "Unknown Scan Backup operation.\n");
1891 break;
1892 }
1893 }
1894 }
1895 EXPORT_SYMBOL(rtl_phy_scan_operation_backup);
1896
1897 /* because mac80211 have issues when can receive del ba
1898 * so here we just make a fake del_ba if we receive a ba_req
1899 * but rx_agg was opened to let mac80211 release some ba
1900 * related resources, so please this del_ba for tx
1901 */
1902 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw,
1903 u8 *sa, u8 *bssid, u16 tid)
1904 {
1905 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1906 struct sk_buff *skb;
1907 struct ieee80211_mgmt *action_frame;
1908 u16 params;
1909
1910 /* 27 = header + category + action + smps mode */
1911 skb = dev_alloc_skb(34 + hw->extra_tx_headroom);
1912 if (!skb)
1913 return NULL;
1914
1915 skb_reserve(skb, hw->extra_tx_headroom);
1916 action_frame = (void *)skb_put(skb, 34);
1917 memset(action_frame, 0, 34);
1918 memcpy(action_frame->sa, sa, ETH_ALEN);
1919 memcpy(action_frame->da, rtlefuse->dev_addr, ETH_ALEN);
1920 memcpy(action_frame->bssid, bssid, ETH_ALEN);
1921 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1922 IEEE80211_STYPE_ACTION);
1923 action_frame->u.action.category = WLAN_CATEGORY_BACK;
1924 action_frame->u.action.u.delba.action_code = WLAN_ACTION_DELBA;
1925 params = (u16)(1 << 11); /* bit 11 initiator */
1926 params |= (u16)(tid << 12); /* bit 15:12 TID number */
1927
1928 action_frame->u.action.u.delba.params = cpu_to_le16(params);
1929 action_frame->u.action.u.delba.reason_code =
1930 cpu_to_le16(WLAN_REASON_QSTA_TIMEOUT);
1931
1932 return skb;
1933 }
1934
1935 /*********************************************************
1936 *
1937 * IOT functions
1938 *
1939 *********************************************************/
1940 static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw,
1941 struct octet_string vendor_ie)
1942 {
1943 struct rtl_priv *rtlpriv = rtl_priv(hw);
1944 bool matched = false;
1945 static u8 athcap_1[] = { 0x00, 0x03, 0x7F };
1946 static u8 athcap_2[] = { 0x00, 0x13, 0x74 };
1947 static u8 broadcap_1[] = { 0x00, 0x10, 0x18 };
1948 static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 };
1949 static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 };
1950 static u8 racap[] = { 0x00, 0x0c, 0x43 };
1951 static u8 ciscocap[] = { 0x00, 0x40, 0x96 };
1952 static u8 marvcap[] = { 0x00, 0x50, 0x43 };
1953
1954 if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 ||
1955 memcmp(vendor_ie.octet, athcap_2, 3) == 0) {
1956 rtlpriv->mac80211.vendor = PEER_ATH;
1957 matched = true;
1958 } else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 ||
1959 memcmp(vendor_ie.octet, broadcap_2, 3) == 0 ||
1960 memcmp(vendor_ie.octet, broadcap_3, 3) == 0) {
1961 rtlpriv->mac80211.vendor = PEER_BROAD;
1962 matched = true;
1963 } else if (memcmp(vendor_ie.octet, racap, 3) == 0) {
1964 rtlpriv->mac80211.vendor = PEER_RAL;
1965 matched = true;
1966 } else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) {
1967 rtlpriv->mac80211.vendor = PEER_CISCO;
1968 matched = true;
1969 } else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) {
1970 rtlpriv->mac80211.vendor = PEER_MARV;
1971 matched = true;
1972 }
1973
1974 return matched;
1975 }
1976
1977 static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data,
1978 unsigned int len)
1979 {
1980 struct ieee80211_mgmt *mgmt = (void *)data;
1981 struct octet_string vendor_ie;
1982 u8 *pos, *end;
1983
1984 pos = (u8 *)mgmt->u.beacon.variable;
1985 end = data + len;
1986 while (pos < end) {
1987 if (pos[0] == 221) {
1988 vendor_ie.length = pos[1];
1989 vendor_ie.octet = &pos[2];
1990 if (rtl_chk_vendor_ouisub(hw, vendor_ie))
1991 return true;
1992 }
1993
1994 if (pos + 2 + pos[1] > end)
1995 return false;
1996
1997 pos += 2 + pos[1];
1998 }
1999 return false;
2000 }
2001
2002 void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len)
2003 {
2004 struct rtl_priv *rtlpriv = rtl_priv(hw);
2005 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
2006 struct ieee80211_hdr *hdr = (void *)data;
2007 u32 vendor = PEER_UNKNOWN;
2008
2009 static u8 ap3_1[3] = { 0x00, 0x14, 0xbf };
2010 static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 };
2011 static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e };
2012 static u8 ap4_1[3] = { 0x00, 0x90, 0xcc };
2013 static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e };
2014 static u8 ap4_3[3] = { 0x00, 0x18, 0x02 };
2015 static u8 ap4_4[3] = { 0x00, 0x17, 0x3f };
2016 static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf };
2017 static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 };
2018 static u8 ap5_2[3] = { 0x00, 0x21, 0x91 };
2019 static u8 ap5_3[3] = { 0x00, 0x24, 0x01 };
2020 static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 };
2021 static u8 ap5_5[3] = { 0x00, 0x17, 0x9A };
2022 static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 };
2023 static u8 ap6_1[3] = { 0x00, 0x17, 0x94 };
2024 static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 };
2025
2026 if (mac->opmode != NL80211_IFTYPE_STATION)
2027 return;
2028
2029 if (mac->link_state == MAC80211_NOLINK) {
2030 mac->vendor = PEER_UNKNOWN;
2031 return;
2032 }
2033
2034 if (mac->cnt_after_linked > 2)
2035 return;
2036
2037 /* check if this really is a beacon */
2038 if (!ieee80211_is_beacon(hdr->frame_control))
2039 return;
2040
2041 /* min. beacon length + FCS_LEN */
2042 if (len <= 40 + FCS_LEN)
2043 return;
2044
2045 /* and only beacons from the associated BSSID, please */
2046 if (!ether_addr_equal_64bits(hdr->addr3, rtlpriv->mac80211.bssid))
2047 return;
2048
2049 if (rtl_find_221_ie(hw, data, len))
2050 vendor = mac->vendor;
2051
2052 if ((memcmp(mac->bssid, ap5_1, 3) == 0) ||
2053 (memcmp(mac->bssid, ap5_2, 3) == 0) ||
2054 (memcmp(mac->bssid, ap5_3, 3) == 0) ||
2055 (memcmp(mac->bssid, ap5_4, 3) == 0) ||
2056 (memcmp(mac->bssid, ap5_5, 3) == 0) ||
2057 (memcmp(mac->bssid, ap5_6, 3) == 0) ||
2058 vendor == PEER_ATH) {
2059 vendor = PEER_ATH;
2060 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ath find\n");
2061 } else if ((memcmp(mac->bssid, ap4_4, 3) == 0) ||
2062 (memcmp(mac->bssid, ap4_5, 3) == 0) ||
2063 (memcmp(mac->bssid, ap4_1, 3) == 0) ||
2064 (memcmp(mac->bssid, ap4_2, 3) == 0) ||
2065 (memcmp(mac->bssid, ap4_3, 3) == 0) ||
2066 vendor == PEER_RAL) {
2067 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ral find\n");
2068 vendor = PEER_RAL;
2069 } else if (memcmp(mac->bssid, ap6_1, 3) == 0 ||
2070 vendor == PEER_CISCO) {
2071 vendor = PEER_CISCO;
2072 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>cisco find\n");
2073 } else if ((memcmp(mac->bssid, ap3_1, 3) == 0) ||
2074 (memcmp(mac->bssid, ap3_2, 3) == 0) ||
2075 (memcmp(mac->bssid, ap3_3, 3) == 0) ||
2076 vendor == PEER_BROAD) {
2077 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>broad find\n");
2078 vendor = PEER_BROAD;
2079 } else if (memcmp(mac->bssid, ap7_1, 3) == 0 ||
2080 vendor == PEER_MARV) {
2081 vendor = PEER_MARV;
2082 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>marv find\n");
2083 }
2084
2085 mac->vendor = vendor;
2086 }
2087 EXPORT_SYMBOL_GPL(rtl_recognize_peer);
2088
2089 /*********************************************************
2090 *
2091 * sysfs functions
2092 *
2093 *********************************************************/
2094 static ssize_t rtl_show_debug_level(struct device *d,
2095 struct device_attribute *attr, char *buf)
2096 {
2097 struct ieee80211_hw *hw = dev_get_drvdata(d);
2098 struct rtl_priv *rtlpriv = rtl_priv(hw);
2099
2100 return sprintf(buf, "0x%08X\n", rtlpriv->dbg.global_debuglevel);
2101 }
2102
2103 static ssize_t rtl_store_debug_level(struct device *d,
2104 struct device_attribute *attr,
2105 const char *buf, size_t count)
2106 {
2107 struct ieee80211_hw *hw = dev_get_drvdata(d);
2108 struct rtl_priv *rtlpriv = rtl_priv(hw);
2109 unsigned long val;
2110 int ret;
2111
2112 ret = kstrtoul(buf, 0, &val);
2113 if (ret) {
2114 RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG,
2115 "%s is not in hex or decimal form.\n", buf);
2116 } else {
2117 rtlpriv->dbg.global_debuglevel = val;
2118 RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG,
2119 "debuglevel:%x\n",
2120 rtlpriv->dbg.global_debuglevel);
2121 }
2122
2123 return strnlen(buf, count);
2124 }
2125
2126 static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
2127 rtl_show_debug_level, rtl_store_debug_level);
2128
2129 static struct attribute *rtl_sysfs_entries[] = {
2130
2131 &dev_attr_debug_level.attr,
2132
2133 NULL
2134 };
2135
2136 /*
2137 * "name" is folder name witch will be
2138 * put in device directory like :
2139 * sys/devices/pci0000:00/0000:00:1c.4/
2140 * 0000:06:00.0/rtl_sysfs
2141 */
2142 struct attribute_group rtl_attribute_group = {
2143 .name = "rtlsysfs",
2144 .attrs = rtl_sysfs_entries,
2145 };
2146 EXPORT_SYMBOL_GPL(rtl_attribute_group);
2147
2148 MODULE_AUTHOR("lizhaoming <chaoming_li@realsil.com.cn>");
2149 MODULE_AUTHOR("Realtek WlanFAE <wlanfae@realtek.com>");
2150 MODULE_AUTHOR("Larry Finger <Larry.FInger@lwfinger.net>");
2151 MODULE_LICENSE("GPL");
2152 MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");
2153
2154 struct rtl_global_var rtl_global_var = {};
2155 EXPORT_SYMBOL_GPL(rtl_global_var);
2156
2157 static int __init rtl_core_module_init(void)
2158 {
2159 if (rtl_rate_control_register())
2160 pr_err("rtl: Unable to register rtl_rc, use default RC !!\n");
2161
2162 /* init some global vars */
2163 INIT_LIST_HEAD(&rtl_global_var.glb_priv_list);
2164 spin_lock_init(&rtl_global_var.glb_list_lock);
2165
2166 return 0;
2167 }
2168
2169 static void __exit rtl_core_module_exit(void)
2170 {
2171 /*RC*/
2172 rtl_rate_control_unregister();
2173 }
2174
2175 module_init(rtl_core_module_init);
2176 module_exit(rtl_core_module_exit);
Linux kernel - Deliverables
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