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 = NL80211_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 = NL80211_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[NL80211_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 		pr_info("Support phy mode switch\n");
211 
212 		ht_cap->mcs.rx_mask[0] = 0xFF;
213 		ht_cap->mcs.rx_mask[1] = 0xFF;
214 		ht_cap->mcs.rx_mask[4] = 0x01;
215 
216 		ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
217 	} else {
218 		if (get_rf_type(rtlphy) == RF_1T2R ||
219 		    get_rf_type(rtlphy) == RF_2T2R) {
220 			RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
221 				 "1T2R or 2T2R\n");
222 			ht_cap->mcs.rx_mask[0] = 0xFF;
223 			ht_cap->mcs.rx_mask[1] = 0xFF;
224 			ht_cap->mcs.rx_mask[4] = 0x01;
225 
226 			ht_cap->mcs.rx_highest =
227 				 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
228 		} else if (get_rf_type(rtlphy) == RF_1T1R) {
229 			RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "1T1R\n");
230 
231 			ht_cap->mcs.rx_mask[0] = 0xFF;
232 			ht_cap->mcs.rx_mask[1] = 0x00;
233 			ht_cap->mcs.rx_mask[4] = 0x01;
234 
235 			ht_cap->mcs.rx_highest =
236 				 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS7);
237 		}
238 	}
239 }
240 
241 static void _rtl_init_hw_vht_capab(struct ieee80211_hw *hw,
242 				   struct ieee80211_sta_vht_cap *vht_cap)
243 {
244 	struct rtl_priv *rtlpriv = rtl_priv(hw);
245 	struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
246 
247 	if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE) {
248 		u16 mcs_map;
249 
250 		vht_cap->vht_supported = true;
251 		vht_cap->cap =
252 			IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
253 			IEEE80211_VHT_CAP_SHORT_GI_80 |
254 			IEEE80211_VHT_CAP_TXSTBC |
255 			IEEE80211_VHT_CAP_RXSTBC_1 |
256 			IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
257 			IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
258 			IEEE80211_VHT_CAP_HTC_VHT |
259 			IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
260 			IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
261 			IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN |
262 			0;
263 
264 		mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
265 			IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
266 			IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
267 			IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
268 			IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
269 			IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
270 			IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
271 			IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;
272 
273 		vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
274 		vht_cap->vht_mcs.rx_highest =
275 			cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9);
276 		vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
277 		vht_cap->vht_mcs.tx_highest =
278 			cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9);
279 	} else if (rtlhal->hw_type == HARDWARE_TYPE_RTL8821AE) {
280 		u16 mcs_map;
281 
282 		vht_cap->vht_supported = true;
283 		vht_cap->cap =
284 			IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
285 			IEEE80211_VHT_CAP_SHORT_GI_80 |
286 			IEEE80211_VHT_CAP_TXSTBC |
287 			IEEE80211_VHT_CAP_RXSTBC_1 |
288 			IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
289 			IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
290 			IEEE80211_VHT_CAP_HTC_VHT |
291 			IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
292 			IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
293 			IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN |
294 			0;
295 
296 		mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
297 			IEEE80211_VHT_MCS_NOT_SUPPORTED << 2 |
298 			IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
299 			IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
300 			IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
301 			IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
302 			IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
303 			IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;
304 
305 		vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
306 		vht_cap->vht_mcs.rx_highest =
307 			cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9);
308 		vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
309 		vht_cap->vht_mcs.tx_highest =
310 			cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9);
311 	}
312 }
313 
314 static void _rtl_init_mac80211(struct ieee80211_hw *hw)
315 {
316 	struct rtl_priv *rtlpriv = rtl_priv(hw);
317 	struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
318 	struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
319 	struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
320 	struct ieee80211_supported_band *sband;
321 
322 	if (rtlhal->macphymode == SINGLEMAC_SINGLEPHY &&
323 	    rtlhal->bandset == BAND_ON_BOTH) {
324 		/* 1: 2.4 G bands */
325 		/* <1> use  mac->bands as mem for hw->wiphy->bands */
326 		sband = &(rtlmac->bands[NL80211_BAND_2GHZ]);
327 
328 		/* <2> set hw->wiphy->bands[NL80211_BAND_2GHZ]
329 		 * to default value(1T1R) */
330 		memcpy(&(rtlmac->bands[NL80211_BAND_2GHZ]), &rtl_band_2ghz,
331 				sizeof(struct ieee80211_supported_band));
332 
333 		/* <3> init ht cap base on ant_num */
334 		_rtl_init_hw_ht_capab(hw, &sband->ht_cap);
335 
336 		/* <4> set mac->sband to wiphy->sband */
337 		hw->wiphy->bands[NL80211_BAND_2GHZ] = sband;
338 
339 		/* 2: 5 G bands */
340 		/* <1> use  mac->bands as mem for hw->wiphy->bands */
341 		sband = &(rtlmac->bands[NL80211_BAND_5GHZ]);
342 
343 		/* <2> set hw->wiphy->bands[NL80211_BAND_5GHZ]
344 		 * to default value(1T1R) */
345 		memcpy(&(rtlmac->bands[NL80211_BAND_5GHZ]), &rtl_band_5ghz,
346 				sizeof(struct ieee80211_supported_band));
347 
348 		/* <3> init ht cap base on ant_num */
349 		_rtl_init_hw_ht_capab(hw, &sband->ht_cap);
350 
351 		_rtl_init_hw_vht_capab(hw, &sband->vht_cap);
352 		/* <4> set mac->sband to wiphy->sband */
353 		hw->wiphy->bands[NL80211_BAND_5GHZ] = sband;
354 	} else {
355 		if (rtlhal->current_bandtype == BAND_ON_2_4G) {
356 			/* <1> use  mac->bands as mem for hw->wiphy->bands */
357 			sband = &(rtlmac->bands[NL80211_BAND_2GHZ]);
358 
359 			/* <2> set hw->wiphy->bands[NL80211_BAND_2GHZ]
360 			 * to default value(1T1R) */
361 			memcpy(&(rtlmac->bands[NL80211_BAND_2GHZ]),
362 			       &rtl_band_2ghz,
363 			       sizeof(struct ieee80211_supported_band));
364 
365 			/* <3> init ht cap base on ant_num */
366 			_rtl_init_hw_ht_capab(hw, &sband->ht_cap);
367 
368 			/* <4> set mac->sband to wiphy->sband */
369 			hw->wiphy->bands[NL80211_BAND_2GHZ] = sband;
370 		} else if (rtlhal->current_bandtype == BAND_ON_5G) {
371 			/* <1> use  mac->bands as mem for hw->wiphy->bands */
372 			sband = &(rtlmac->bands[NL80211_BAND_5GHZ]);
373 
374 			/* <2> set hw->wiphy->bands[NL80211_BAND_5GHZ]
375 			 * to default value(1T1R) */
376 			memcpy(&(rtlmac->bands[NL80211_BAND_5GHZ]),
377 			       &rtl_band_5ghz,
378 			       sizeof(struct ieee80211_supported_band));
379 
380 			/* <3> init ht cap base on ant_num */
381 			_rtl_init_hw_ht_capab(hw, &sband->ht_cap);
382 
383 			_rtl_init_hw_vht_capab(hw, &sband->vht_cap);
384 			/* <4> set mac->sband to wiphy->sband */
385 			hw->wiphy->bands[NL80211_BAND_5GHZ] = sband;
386 		} else {
387 			pr_err("Err BAND %d\n",
388 			       rtlhal->current_bandtype);
389 		}
390 	}
391 	/* <5> set hw caps */
392 	ieee80211_hw_set(hw, SIGNAL_DBM);
393 	ieee80211_hw_set(hw, RX_INCLUDES_FCS);
394 	ieee80211_hw_set(hw, AMPDU_AGGREGATION);
395 	ieee80211_hw_set(hw, CONNECTION_MONITOR);
396 	ieee80211_hw_set(hw, MFP_CAPABLE);
397 	ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
398 
399 	/* swlps or hwlps has been set in diff chip in init_sw_vars */
400 	if (rtlpriv->psc.swctrl_lps) {
401 		ieee80211_hw_set(hw, SUPPORTS_PS);
402 		ieee80211_hw_set(hw, PS_NULLFUNC_STACK);
403 	}
404 	if (rtlpriv->psc.fwctrl_lps) {
405 		ieee80211_hw_set(hw, SUPPORTS_PS);
406 		ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
407 	}
408 	hw->wiphy->interface_modes =
409 	    BIT(NL80211_IFTYPE_AP) |
410 	    BIT(NL80211_IFTYPE_STATION) |
411 	    BIT(NL80211_IFTYPE_ADHOC) |
412 	    BIT(NL80211_IFTYPE_MESH_POINT) |
413 	    BIT(NL80211_IFTYPE_P2P_CLIENT) |
414 	    BIT(NL80211_IFTYPE_P2P_GO);
415 	hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
416 
417 	hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
418 
419 	hw->wiphy->rts_threshold = 2347;
420 
421 	hw->queues = AC_MAX;
422 	hw->extra_tx_headroom = RTL_TX_HEADER_SIZE;
423 
424 	/* TODO: Correct this value for our hw */
425 	hw->max_listen_interval = MAX_LISTEN_INTERVAL;
426 	hw->max_rate_tries = MAX_RATE_TRIES;
427 	/* hw->max_rates = 1; */
428 	hw->sta_data_size = sizeof(struct rtl_sta_info);
429 
430 /* wowlan is not supported by kernel if CONFIG_PM is not defined */
431 #ifdef CONFIG_PM
432 	if (rtlpriv->psc.wo_wlan_mode) {
433 		if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_MAGIC_PACKET)
434 			rtlpriv->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT;
435 		if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_PATTERN_MATCH) {
436 			rtlpriv->wowlan.n_patterns =
437 				MAX_SUPPORT_WOL_PATTERN_NUM;
438 			rtlpriv->wowlan.pattern_min_len = MIN_WOL_PATTERN_SIZE;
439 			rtlpriv->wowlan.pattern_max_len = MAX_WOL_PATTERN_SIZE;
440 		}
441 		hw->wiphy->wowlan = &rtlpriv->wowlan;
442 	}
443 #endif
444 
445 	/* <6> mac address */
446 	if (is_valid_ether_addr(rtlefuse->dev_addr)) {
447 		SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr);
448 	} else {
449 		u8 rtlmac1[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 };
450 		get_random_bytes((rtlmac1 + (ETH_ALEN - 1)), 1);
451 		SET_IEEE80211_PERM_ADDR(hw, rtlmac1);
452 	}
453 }
454 
455 static void _rtl_init_deferred_work(struct ieee80211_hw *hw)
456 {
457 	struct rtl_priv *rtlpriv = rtl_priv(hw);
458 
459 	/* <1> timer */
460 	timer_setup(&rtlpriv->works.watchdog_timer,
461 		    rtl_watch_dog_timer_callback, 0);
462 	timer_setup(&rtlpriv->works.dualmac_easyconcurrent_retrytimer,
463 		    rtl_easy_concurrent_retrytimer_callback, 0);
464 	/* <2> work queue */
465 	rtlpriv->works.hw = hw;
466 	rtlpriv->works.rtl_wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name);
467 	INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
468 			  (void *)rtl_watchdog_wq_callback);
469 	INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,
470 			  (void *)rtl_ips_nic_off_wq_callback);
471 	INIT_DELAYED_WORK(&rtlpriv->works.ps_work,
472 			  (void *)rtl_swlps_wq_callback);
473 	INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq,
474 			  (void *)rtl_swlps_rfon_wq_callback);
475 	INIT_DELAYED_WORK(&rtlpriv->works.fwevt_wq,
476 			  (void *)rtl_fwevt_wq_callback);
477 	INIT_DELAYED_WORK(&rtlpriv->works.c2hcmd_wq,
478 			  (void *)rtl_c2hcmd_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 	cancel_delayed_work(&rtlpriv->works.c2hcmd_wq);
494 }
495 EXPORT_SYMBOL_GPL(rtl_deinit_deferred_work);
496 
497 void rtl_init_rfkill(struct ieee80211_hw *hw)
498 {
499 	struct rtl_priv *rtlpriv = rtl_priv(hw);
500 
501 	bool radio_state;
502 	bool blocked;
503 	u8 valid = 0;
504 
505 	/*set init state to on */
506 	rtlpriv->rfkill.rfkill_state = true;
507 	wiphy_rfkill_set_hw_state(hw->wiphy, 0);
508 
509 	radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
510 
511 	if (valid) {
512 		pr_info("rtlwifi: wireless switch is %s\n",
513 			rtlpriv->rfkill.rfkill_state ? "on" : "off");
514 
515 		rtlpriv->rfkill.rfkill_state = radio_state;
516 
517 		blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1;
518 		wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
519 	}
520 
521 	wiphy_rfkill_start_polling(hw->wiphy);
522 }
523 EXPORT_SYMBOL(rtl_init_rfkill);
524 
525 void rtl_deinit_rfkill(struct ieee80211_hw *hw)
526 {
527 	wiphy_rfkill_stop_polling(hw->wiphy);
528 }
529 EXPORT_SYMBOL_GPL(rtl_deinit_rfkill);
530 
531 int rtl_init_core(struct ieee80211_hw *hw)
532 {
533 	struct rtl_priv *rtlpriv = rtl_priv(hw);
534 	struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
535 
536 	/* <1> init mac80211 */
537 	_rtl_init_mac80211(hw);
538 	rtlmac->hw = hw;
539 
540 	/* <2> rate control register */
541 	hw->rate_control_algorithm = "rtl_rc";
542 
543 	/*
544 	 * <3> init CRDA must come after init
545 	 * mac80211 hw  in _rtl_init_mac80211.
546 	 */
547 	if (rtl_regd_init(hw, rtl_reg_notifier)) {
548 		pr_err("REGD init failed\n");
549 		return 1;
550 	}
551 
552 	/* <4> locks */
553 	mutex_init(&rtlpriv->locks.conf_mutex);
554 	spin_lock_init(&rtlpriv->locks.ips_lock);
555 	spin_lock_init(&rtlpriv->locks.irq_th_lock);
556 	spin_lock_init(&rtlpriv->locks.h2c_lock);
557 	spin_lock_init(&rtlpriv->locks.rf_ps_lock);
558 	spin_lock_init(&rtlpriv->locks.rf_lock);
559 	spin_lock_init(&rtlpriv->locks.waitq_lock);
560 	spin_lock_init(&rtlpriv->locks.entry_list_lock);
561 	spin_lock_init(&rtlpriv->locks.c2hcmd_lock);
562 	spin_lock_init(&rtlpriv->locks.scan_list_lock);
563 	spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock);
564 	spin_lock_init(&rtlpriv->locks.check_sendpkt_lock);
565 	spin_lock_init(&rtlpriv->locks.fw_ps_lock);
566 	spin_lock_init(&rtlpriv->locks.lps_lock);
567 	spin_lock_init(&rtlpriv->locks.iqk_lock);
568 	/* <5> init list */
569 	INIT_LIST_HEAD(&rtlpriv->entry_list);
570 	INIT_LIST_HEAD(&rtlpriv->c2hcmd_list);
571 	INIT_LIST_HEAD(&rtlpriv->scan_list.list);
572 
573 	rtlmac->link_state = MAC80211_NOLINK;
574 
575 	/* <6> init deferred work */
576 	_rtl_init_deferred_work(hw);
577 
578 	return 0;
579 }
580 EXPORT_SYMBOL_GPL(rtl_init_core);
581 
582 static void rtl_free_entries_from_scan_list(struct ieee80211_hw *hw);
583 
584 void rtl_deinit_core(struct ieee80211_hw *hw)
585 {
586 	rtl_c2hcmd_launcher(hw, 0);
587 	rtl_free_entries_from_scan_list(hw);
588 }
589 EXPORT_SYMBOL_GPL(rtl_deinit_core);
590 
591 void rtl_init_rx_config(struct ieee80211_hw *hw)
592 {
593 	struct rtl_priv *rtlpriv = rtl_priv(hw);
594 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
595 
596 	rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf));
597 }
598 EXPORT_SYMBOL_GPL(rtl_init_rx_config);
599 
600 /*********************************************************
601  *
602  * tx information functions
603  *
604  *********************************************************/
605 static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw,
606 					  struct rtl_tcb_desc *tcb_desc,
607 					  struct ieee80211_tx_info *info)
608 {
609 	struct rtl_priv *rtlpriv = rtl_priv(hw);
610 	u8 rate_flag = info->control.rates[0].flags;
611 
612 	tcb_desc->use_shortpreamble = false;
613 
614 	/* 1M can only use Long Preamble. 11B spec */
615 	if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M])
616 		return;
617 	else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
618 		tcb_desc->use_shortpreamble = true;
619 
620 	return;
621 }
622 
623 static void _rtl_query_shortgi(struct ieee80211_hw *hw,
624 			       struct ieee80211_sta *sta,
625 			       struct rtl_tcb_desc *tcb_desc,
626 			       struct ieee80211_tx_info *info)
627 {
628 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
629 	u8 rate_flag = info->control.rates[0].flags;
630 	u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0;
631 	u8 sgi_80 = 0, bw_80 = 0;
632 	tcb_desc->use_shortgi = false;
633 
634 	if (sta == NULL)
635 		return;
636 
637 	sgi_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40;
638 	sgi_20 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20;
639 	sgi_80 = sta->vht_cap.cap & IEEE80211_VHT_CAP_SHORT_GI_80;
640 
641 	if ((!sta->ht_cap.ht_supported) && (!sta->vht_cap.vht_supported))
642 		return;
643 
644 	if (!sgi_40 && !sgi_20)
645 		return;
646 
647 	if (mac->opmode == NL80211_IFTYPE_STATION) {
648 		bw_40 = mac->bw_40;
649 		bw_80 = mac->bw_80;
650 	} else if (mac->opmode == NL80211_IFTYPE_AP ||
651 		 mac->opmode == NL80211_IFTYPE_ADHOC ||
652 		 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
653 		bw_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40;
654 		bw_80 = sta->vht_cap.vht_supported;
655 	}
656 
657 	if (bw_80) {
658 		if (sgi_80)
659 			tcb_desc->use_shortgi = true;
660 		else
661 			tcb_desc->use_shortgi = false;
662 	} else {
663 		if (bw_40 && sgi_40)
664 			tcb_desc->use_shortgi = true;
665 		else if (!bw_40 && sgi_20)
666 			tcb_desc->use_shortgi = true;
667 	}
668 
669 	if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI))
670 		tcb_desc->use_shortgi = false;
671 }
672 
673 static void _rtl_query_protection_mode(struct ieee80211_hw *hw,
674 				       struct rtl_tcb_desc *tcb_desc,
675 				       struct ieee80211_tx_info *info)
676 {
677 	struct rtl_priv *rtlpriv = rtl_priv(hw);
678 	u8 rate_flag = info->control.rates[0].flags;
679 
680 	/* Common Settings */
681 	tcb_desc->rts_stbc = false;
682 	tcb_desc->cts_enable = false;
683 	tcb_desc->rts_sc = 0;
684 	tcb_desc->rts_bw = false;
685 	tcb_desc->rts_use_shortpreamble = false;
686 	tcb_desc->rts_use_shortgi = false;
687 
688 	if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) {
689 		/* Use CTS-to-SELF in protection mode. */
690 		tcb_desc->rts_enable = true;
691 		tcb_desc->cts_enable = true;
692 		tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
693 	} else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) {
694 		/* Use RTS-CTS in protection mode. */
695 		tcb_desc->rts_enable = true;
696 		tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
697 	}
698 }
699 
700 static void _rtl_txrate_selectmode(struct ieee80211_hw *hw,
701 				   struct ieee80211_sta *sta,
702 				   struct rtl_tcb_desc *tcb_desc)
703 {
704 	struct rtl_priv *rtlpriv = rtl_priv(hw);
705 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
706 	struct rtl_sta_info *sta_entry = NULL;
707 	u8 ratr_index = 7;
708 
709 	if (sta) {
710 		sta_entry = (struct rtl_sta_info *) sta->drv_priv;
711 		ratr_index = sta_entry->ratr_index;
712 	}
713 	if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) {
714 		if (mac->opmode == NL80211_IFTYPE_STATION) {
715 			tcb_desc->ratr_index = 0;
716 		} else if (mac->opmode == NL80211_IFTYPE_ADHOC ||
717 				mac->opmode == NL80211_IFTYPE_MESH_POINT) {
718 			if (tcb_desc->multicast || tcb_desc->broadcast) {
719 				tcb_desc->hw_rate =
720 				    rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M];
721 				tcb_desc->use_driver_rate = 1;
722 				tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
723 			} else {
724 				tcb_desc->ratr_index = ratr_index;
725 			}
726 		} else if (mac->opmode == NL80211_IFTYPE_AP) {
727 			tcb_desc->ratr_index = ratr_index;
728 		}
729 	}
730 
731 	if (rtlpriv->dm.useramask) {
732 		tcb_desc->ratr_index = ratr_index;
733 		/* TODO we will differentiate adhoc and station future  */
734 		if (mac->opmode == NL80211_IFTYPE_STATION ||
735 		    mac->opmode == NL80211_IFTYPE_MESH_POINT) {
736 			tcb_desc->mac_id = 0;
737 
738 			if (mac->mode == WIRELESS_MODE_AC_5G)
739 				tcb_desc->ratr_index =
740 					RATR_INX_WIRELESS_AC_5N;
741 			else if (mac->mode == WIRELESS_MODE_AC_24G)
742 				tcb_desc->ratr_index =
743 					RATR_INX_WIRELESS_AC_24N;
744 			else if (mac->mode == WIRELESS_MODE_N_24G)
745 				tcb_desc->ratr_index = RATR_INX_WIRELESS_NGB;
746 			else if (mac->mode == WIRELESS_MODE_N_5G)
747 				tcb_desc->ratr_index = RATR_INX_WIRELESS_NG;
748 			else if (mac->mode & WIRELESS_MODE_G)
749 				tcb_desc->ratr_index = RATR_INX_WIRELESS_GB;
750 			else if (mac->mode & WIRELESS_MODE_B)
751 				tcb_desc->ratr_index = RATR_INX_WIRELESS_B;
752 			else if (mac->mode & WIRELESS_MODE_A)
753 				tcb_desc->ratr_index = RATR_INX_WIRELESS_G;
754 
755 		} else if (mac->opmode == NL80211_IFTYPE_AP ||
756 			mac->opmode == NL80211_IFTYPE_ADHOC) {
757 			if (NULL != sta) {
758 				if (sta->aid > 0)
759 					tcb_desc->mac_id = sta->aid + 1;
760 				else
761 					tcb_desc->mac_id = 1;
762 			} else {
763 				tcb_desc->mac_id = 0;
764 			}
765 		}
766 	}
767 }
768 
769 static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw,
770 				      struct ieee80211_sta *sta,
771 				      struct rtl_tcb_desc *tcb_desc)
772 {
773 	struct rtl_priv *rtlpriv = rtl_priv(hw);
774 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
775 
776 	tcb_desc->packet_bw = false;
777 	if (!sta)
778 		return;
779 	if (mac->opmode == NL80211_IFTYPE_AP ||
780 	    mac->opmode == NL80211_IFTYPE_ADHOC ||
781 	    mac->opmode == NL80211_IFTYPE_MESH_POINT) {
782 		if (!(sta->ht_cap.ht_supported) ||
783 		    !(sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))
784 			return;
785 	} else if (mac->opmode == NL80211_IFTYPE_STATION) {
786 		if (!mac->bw_40 || !(sta->ht_cap.ht_supported))
787 			return;
788 	}
789 	if (tcb_desc->multicast || tcb_desc->broadcast)
790 		return;
791 
792 	/*use legency rate, shall use 20MHz */
793 	if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M])
794 		return;
795 
796 	tcb_desc->packet_bw = HT_CHANNEL_WIDTH_20_40;
797 
798 	if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8812AE ||
799 	    rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8821AE) {
800 		if (mac->opmode == NL80211_IFTYPE_AP ||
801 		    mac->opmode == NL80211_IFTYPE_ADHOC ||
802 		    mac->opmode == NL80211_IFTYPE_MESH_POINT) {
803 			if (!(sta->vht_cap.vht_supported))
804 				return;
805 		} else if (mac->opmode == NL80211_IFTYPE_STATION) {
806 			if (!mac->bw_80 ||
807 			    !(sta->vht_cap.vht_supported))
808 				return;
809 		}
810 		if (tcb_desc->hw_rate <=
811 			rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15])
812 			return;
813 		tcb_desc->packet_bw = HT_CHANNEL_WIDTH_80;
814 	}
815 }
816 
817 static u8 _rtl_get_vht_highest_n_rate(struct ieee80211_hw *hw,
818 				      struct ieee80211_sta *sta)
819 {
820 	struct rtl_priv *rtlpriv = rtl_priv(hw);
821 	struct rtl_phy *rtlphy = &(rtlpriv->phy);
822 	u8 hw_rate;
823 	u16 tx_mcs_map = le16_to_cpu(sta->vht_cap.vht_mcs.tx_mcs_map);
824 
825 	if ((get_rf_type(rtlphy) == RF_2T2R) &&
826 	    (tx_mcs_map & 0x000c) != 0x000c) {
827 		if ((tx_mcs_map & 0x000c) >> 2 ==
828 			IEEE80211_VHT_MCS_SUPPORT_0_7)
829 			hw_rate =
830 			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS7];
831 		else if ((tx_mcs_map  & 0x000c) >> 2 ==
832 			IEEE80211_VHT_MCS_SUPPORT_0_8)
833 			hw_rate =
834 			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS8];
835 		else
836 			hw_rate =
837 			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
838 	} else {
839 		if ((tx_mcs_map  & 0x0003) ==
840 			IEEE80211_VHT_MCS_SUPPORT_0_7)
841 			hw_rate =
842 			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS7];
843 		else if ((tx_mcs_map  & 0x0003) ==
844 			IEEE80211_VHT_MCS_SUPPORT_0_8)
845 			hw_rate =
846 			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS8];
847 		else
848 			hw_rate =
849 			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
850 	}
851 
852 	return hw_rate;
853 }
854 
855 static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw,
856 				  struct ieee80211_sta *sta)
857 {
858 	struct rtl_priv *rtlpriv = rtl_priv(hw);
859 	struct rtl_phy *rtlphy = &rtlpriv->phy;
860 	u8 hw_rate;
861 
862 	if ((get_rf_type(rtlphy) == RF_2T2R) &&
863 	    (sta->ht_cap.mcs.rx_mask[1] != 0))
864 		hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15];
865 	else
866 		hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7];
867 
868 	return hw_rate;
869 }
870 
871 /* mac80211's rate_idx is like this:
872  *
873  * 2.4G band:rx_status->band == NL80211_BAND_2GHZ
874  *
875  * B/G rate:
876  * (rx_status->flag & RX_FLAG_HT) = 0,
877  * DESC_RATE1M-->DESC_RATE54M ==> idx is 0-->11,
878  *
879  * N rate:
880  * (rx_status->flag & RX_FLAG_HT) = 1,
881  * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
882  *
883  * 5G band:rx_status->band == NL80211_BAND_5GHZ
884  * A rate:
885  * (rx_status->flag & RX_FLAG_HT) = 0,
886  * DESC_RATE6M-->DESC_RATE54M ==> idx is 0-->7,
887  *
888  * N rate:
889  * (rx_status->flag & RX_FLAG_HT) = 1,
890  * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
891  *
892  * VHT rates:
893  * DESC_RATEVHT1SS_MCS0-->DESC_RATEVHT1SS_MCS9 ==> idx is 0-->9
894  * DESC_RATEVHT2SS_MCS0-->DESC_RATEVHT2SS_MCS9 ==> idx is 0-->9
895  */
896 int rtlwifi_rate_mapping(struct ieee80211_hw *hw, bool isht, bool isvht,
897 			 u8 desc_rate)
898 {
899 	int rate_idx;
900 
901 	if (isvht) {
902 		switch (desc_rate) {
903 		case DESC_RATEVHT1SS_MCS0:
904 			rate_idx = 0;
905 			break;
906 		case DESC_RATEVHT1SS_MCS1:
907 			rate_idx = 1;
908 			break;
909 		case DESC_RATEVHT1SS_MCS2:
910 			rate_idx = 2;
911 			break;
912 		case DESC_RATEVHT1SS_MCS3:
913 			rate_idx = 3;
914 			break;
915 		case DESC_RATEVHT1SS_MCS4:
916 			rate_idx = 4;
917 			break;
918 		case DESC_RATEVHT1SS_MCS5:
919 			rate_idx = 5;
920 			break;
921 		case DESC_RATEVHT1SS_MCS6:
922 			rate_idx = 6;
923 			break;
924 		case DESC_RATEVHT1SS_MCS7:
925 			rate_idx = 7;
926 			break;
927 		case DESC_RATEVHT1SS_MCS8:
928 			rate_idx = 8;
929 			break;
930 		case DESC_RATEVHT1SS_MCS9:
931 			rate_idx = 9;
932 			break;
933 		case DESC_RATEVHT2SS_MCS0:
934 			rate_idx = 0;
935 			break;
936 		case DESC_RATEVHT2SS_MCS1:
937 			rate_idx = 1;
938 			break;
939 		case DESC_RATEVHT2SS_MCS2:
940 			rate_idx = 2;
941 			break;
942 		case DESC_RATEVHT2SS_MCS3:
943 			rate_idx = 3;
944 			break;
945 		case DESC_RATEVHT2SS_MCS4:
946 			rate_idx = 4;
947 			break;
948 		case DESC_RATEVHT2SS_MCS5:
949 			rate_idx = 5;
950 			break;
951 		case DESC_RATEVHT2SS_MCS6:
952 			rate_idx = 6;
953 			break;
954 		case DESC_RATEVHT2SS_MCS7:
955 			rate_idx = 7;
956 			break;
957 		case DESC_RATEVHT2SS_MCS8:
958 			rate_idx = 8;
959 			break;
960 		case DESC_RATEVHT2SS_MCS9:
961 			rate_idx = 9;
962 			break;
963 		default:
964 			rate_idx = 0;
965 			break;
966 		}
967 		return rate_idx;
968 	}
969 	if (false == isht) {
970 		if (NL80211_BAND_2GHZ == hw->conf.chandef.chan->band) {
971 			switch (desc_rate) {
972 			case DESC_RATE1M:
973 				rate_idx = 0;
974 				break;
975 			case DESC_RATE2M:
976 				rate_idx = 1;
977 				break;
978 			case DESC_RATE5_5M:
979 				rate_idx = 2;
980 				break;
981 			case DESC_RATE11M:
982 				rate_idx = 3;
983 				break;
984 			case DESC_RATE6M:
985 				rate_idx = 4;
986 				break;
987 			case DESC_RATE9M:
988 				rate_idx = 5;
989 				break;
990 			case DESC_RATE12M:
991 				rate_idx = 6;
992 				break;
993 			case DESC_RATE18M:
994 				rate_idx = 7;
995 				break;
996 			case DESC_RATE24M:
997 				rate_idx = 8;
998 				break;
999 			case DESC_RATE36M:
1000 				rate_idx = 9;
1001 				break;
1002 			case DESC_RATE48M:
1003 				rate_idx = 10;
1004 				break;
1005 			case DESC_RATE54M:
1006 				rate_idx = 11;
1007 				break;
1008 			default:
1009 				rate_idx = 0;
1010 				break;
1011 			}
1012 		} else {
1013 			switch (desc_rate) {
1014 			case DESC_RATE6M:
1015 				rate_idx = 0;
1016 				break;
1017 			case DESC_RATE9M:
1018 				rate_idx = 1;
1019 				break;
1020 			case DESC_RATE12M:
1021 				rate_idx = 2;
1022 				break;
1023 			case DESC_RATE18M:
1024 				rate_idx = 3;
1025 				break;
1026 			case DESC_RATE24M:
1027 				rate_idx = 4;
1028 				break;
1029 			case DESC_RATE36M:
1030 				rate_idx = 5;
1031 				break;
1032 			case DESC_RATE48M:
1033 				rate_idx = 6;
1034 				break;
1035 			case DESC_RATE54M:
1036 				rate_idx = 7;
1037 				break;
1038 			default:
1039 				rate_idx = 0;
1040 				break;
1041 			}
1042 		}
1043 	} else {
1044 		switch (desc_rate) {
1045 		case DESC_RATEMCS0:
1046 			rate_idx = 0;
1047 			break;
1048 		case DESC_RATEMCS1:
1049 			rate_idx = 1;
1050 			break;
1051 		case DESC_RATEMCS2:
1052 			rate_idx = 2;
1053 			break;
1054 		case DESC_RATEMCS3:
1055 			rate_idx = 3;
1056 			break;
1057 		case DESC_RATEMCS4:
1058 			rate_idx = 4;
1059 			break;
1060 		case DESC_RATEMCS5:
1061 			rate_idx = 5;
1062 			break;
1063 		case DESC_RATEMCS6:
1064 			rate_idx = 6;
1065 			break;
1066 		case DESC_RATEMCS7:
1067 			rate_idx = 7;
1068 			break;
1069 		case DESC_RATEMCS8:
1070 			rate_idx = 8;
1071 			break;
1072 		case DESC_RATEMCS9:
1073 			rate_idx = 9;
1074 			break;
1075 		case DESC_RATEMCS10:
1076 			rate_idx = 10;
1077 			break;
1078 		case DESC_RATEMCS11:
1079 			rate_idx = 11;
1080 			break;
1081 		case DESC_RATEMCS12:
1082 			rate_idx = 12;
1083 			break;
1084 		case DESC_RATEMCS13:
1085 			rate_idx = 13;
1086 			break;
1087 		case DESC_RATEMCS14:
1088 			rate_idx = 14;
1089 			break;
1090 		case DESC_RATEMCS15:
1091 			rate_idx = 15;
1092 			break;
1093 		default:
1094 			rate_idx = 0;
1095 			break;
1096 		}
1097 	}
1098 	return rate_idx;
1099 }
1100 EXPORT_SYMBOL(rtlwifi_rate_mapping);
1101 
1102 static u8 _rtl_get_tx_hw_rate(struct ieee80211_hw *hw,
1103 			      struct ieee80211_tx_info *info)
1104 {
1105 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1106 	struct ieee80211_tx_rate *r = &info->status.rates[0];
1107 	struct ieee80211_rate *txrate;
1108 	u8 hw_value = 0x0;
1109 
1110 	if (r->flags & IEEE80211_TX_RC_MCS) {
1111 		/* HT MCS0-15 */
1112 		hw_value = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15] - 15 +
1113 			   r->idx;
1114 	} else if (r->flags & IEEE80211_TX_RC_VHT_MCS) {
1115 		/* VHT MCS0-9, NSS */
1116 		if (ieee80211_rate_get_vht_nss(r) == 2)
1117 			hw_value = rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
1118 		else
1119 			hw_value = rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
1120 
1121 		hw_value = hw_value - 9 + ieee80211_rate_get_vht_mcs(r);
1122 	} else {
1123 		/* legacy */
1124 		txrate = ieee80211_get_tx_rate(hw, info);
1125 
1126 		if (txrate)
1127 			hw_value = txrate->hw_value;
1128 	}
1129 
1130 	/* check 5G band */
1131 	if (rtlpriv->rtlhal.current_bandtype == BAND_ON_5G &&
1132 	    hw_value < rtlpriv->cfg->maps[RTL_RC_OFDM_RATE6M])
1133 		hw_value = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE6M];
1134 
1135 	return hw_value;
1136 }
1137 
1138 void rtl_get_tcb_desc(struct ieee80211_hw *hw,
1139 		      struct ieee80211_tx_info *info,
1140 		      struct ieee80211_sta *sta,
1141 		      struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc)
1142 {
1143 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1144 	struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
1145 	struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1146 
1147 	__le16 fc = rtl_get_fc(skb);
1148 
1149 	tcb_desc->hw_rate = _rtl_get_tx_hw_rate(hw, info);
1150 
1151 	if (rtl_is_tx_report_skb(hw, skb))
1152 		tcb_desc->use_spe_rpt = 1;
1153 
1154 	if (ieee80211_is_data(fc)) {
1155 		/*
1156 		 *we set data rate INX 0
1157 		 *in rtl_rc.c   if skb is special data or
1158 		 *mgt which need low data rate.
1159 		 */
1160 
1161 		/*
1162 		 *So tcb_desc->hw_rate is just used for
1163 		 *special data and mgt frames
1164 		 */
1165 		if (info->control.rates[0].idx == 0 ||
1166 				ieee80211_is_nullfunc(fc)) {
1167 			tcb_desc->use_driver_rate = true;
1168 			tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
1169 
1170 			tcb_desc->disable_ratefallback = 1;
1171 		} else {
1172 			/*
1173 			 *because hw will nerver use hw_rate
1174 			 *when tcb_desc->use_driver_rate = false
1175 			 *so we never set highest N rate here,
1176 			 *and N rate will all be controlled by FW
1177 			 *when tcb_desc->use_driver_rate = false
1178 			 */
1179 			if (sta && sta->vht_cap.vht_supported) {
1180 				tcb_desc->hw_rate =
1181 				_rtl_get_vht_highest_n_rate(hw, sta);
1182 			} else {
1183 				if (sta && (sta->ht_cap.ht_supported)) {
1184 					tcb_desc->hw_rate =
1185 						_rtl_get_highest_n_rate(hw, sta);
1186 				} else {
1187 					if (rtlmac->mode == WIRELESS_MODE_B) {
1188 						tcb_desc->hw_rate =
1189 						    rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M];
1190 					} else {
1191 						tcb_desc->hw_rate =
1192 						    rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M];
1193 					}
1194 				}
1195 			}
1196 		}
1197 
1198 		if (is_multicast_ether_addr(hdr->addr1))
1199 			tcb_desc->multicast = 1;
1200 		else if (is_broadcast_ether_addr(hdr->addr1))
1201 			tcb_desc->broadcast = 1;
1202 
1203 		_rtl_txrate_selectmode(hw, sta, tcb_desc);
1204 		_rtl_query_bandwidth_mode(hw, sta, tcb_desc);
1205 		_rtl_qurey_shortpreamble_mode(hw, tcb_desc, info);
1206 		_rtl_query_shortgi(hw, sta, tcb_desc, info);
1207 		_rtl_query_protection_mode(hw, tcb_desc, info);
1208 	} else {
1209 		tcb_desc->use_driver_rate = true;
1210 		tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
1211 		tcb_desc->disable_ratefallback = 1;
1212 		tcb_desc->mac_id = 0;
1213 		tcb_desc->packet_bw = false;
1214 	}
1215 }
1216 EXPORT_SYMBOL(rtl_get_tcb_desc);
1217 
1218 bool rtl_tx_mgmt_proc(struct ieee80211_hw *hw, struct sk_buff *skb)
1219 {
1220 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1221 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1222 	__le16 fc = rtl_get_fc(skb);
1223 
1224 	if (rtlpriv->dm.supp_phymode_switch &&
1225 	    mac->link_state < MAC80211_LINKED &&
1226 	    (ieee80211_is_auth(fc) || ieee80211_is_probe_req(fc))) {
1227 		if (rtlpriv->cfg->ops->chk_switch_dmdp)
1228 			rtlpriv->cfg->ops->chk_switch_dmdp(hw);
1229 	}
1230 	if (ieee80211_is_auth(fc)) {
1231 		RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n");
1232 		rtl_ips_nic_on(hw);
1233 
1234 		mac->link_state = MAC80211_LINKING;
1235 		/* Dul mac */
1236 		rtlpriv->phy.need_iqk = true;
1237 
1238 	}
1239 
1240 	return true;
1241 }
1242 EXPORT_SYMBOL_GPL(rtl_tx_mgmt_proc);
1243 
1244 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw, u8 *sa,
1245 				u8 *bssid, u16 tid);
1246 
1247 static void process_agg_start(struct ieee80211_hw *hw,
1248 			      struct ieee80211_hdr *hdr, u16 tid)
1249 {
1250 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1251 	struct ieee80211_rx_status rx_status = { 0 };
1252 	struct sk_buff *skb_delba = NULL;
1253 
1254 	skb_delba = rtl_make_del_ba(hw, hdr->addr2, hdr->addr3, tid);
1255 	if (skb_delba) {
1256 		rx_status.freq = hw->conf.chandef.chan->center_freq;
1257 		rx_status.band = hw->conf.chandef.chan->band;
1258 		rx_status.flag |= RX_FLAG_DECRYPTED;
1259 		rx_status.flag |= RX_FLAG_MACTIME_START;
1260 		rx_status.rate_idx = 0;
1261 		rx_status.signal = 50 + 10;
1262 		memcpy(IEEE80211_SKB_RXCB(skb_delba),
1263 		       &rx_status, sizeof(rx_status));
1264 		RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG,
1265 			      "fake del\n",
1266 			      skb_delba->data,
1267 			      skb_delba->len);
1268 		ieee80211_rx_irqsafe(hw, skb_delba);
1269 	}
1270 }
1271 
1272 bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
1273 {
1274 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1275 	struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1276 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1277 	__le16 fc = rtl_get_fc(skb);
1278 	u8 *act = (u8 *)(((u8 *)skb->data + MAC80211_3ADDR_LEN));
1279 	u8 category;
1280 
1281 	if (!ieee80211_is_action(fc))
1282 		return true;
1283 
1284 	category = *act;
1285 	act++;
1286 	switch (category) {
1287 	case ACT_CAT_BA:
1288 		switch (*act) {
1289 		case ACT_ADDBAREQ:
1290 			if (mac->act_scanning)
1291 				return false;
1292 
1293 			RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1294 				"%s ACT_ADDBAREQ From :%pM\n",
1295 				is_tx ? "Tx" : "Rx", hdr->addr2);
1296 			RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, "req\n",
1297 				skb->data, skb->len);
1298 			if (!is_tx) {
1299 				struct ieee80211_sta *sta = NULL;
1300 				struct rtl_sta_info *sta_entry = NULL;
1301 				struct rtl_tid_data *tid_data;
1302 				struct ieee80211_mgmt *mgmt = (void *)skb->data;
1303 				u16 capab = 0, tid = 0;
1304 
1305 				rcu_read_lock();
1306 				sta = rtl_find_sta(hw, hdr->addr3);
1307 				if (sta == NULL) {
1308 					RT_TRACE(rtlpriv, COMP_SEND | COMP_RECV,
1309 						 DBG_DMESG, "sta is NULL\n");
1310 					rcu_read_unlock();
1311 					return true;
1312 				}
1313 
1314 				sta_entry =
1315 					(struct rtl_sta_info *)sta->drv_priv;
1316 				if (!sta_entry) {
1317 					rcu_read_unlock();
1318 					return true;
1319 				}
1320 				capab =
1321 				  le16_to_cpu(mgmt->u.action.u.addba_req.capab);
1322 				tid = (capab &
1323 				       IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
1324 				tid_data = &sta_entry->tids[tid];
1325 				if (tid_data->agg.rx_agg_state ==
1326 				    RTL_RX_AGG_START)
1327 					process_agg_start(hw, hdr, tid);
1328 				rcu_read_unlock();
1329 			}
1330 			break;
1331 		case ACT_ADDBARSP:
1332 			RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1333 				 "%s ACT_ADDBARSP From :%pM\n",
1334 				  is_tx ? "Tx" : "Rx", hdr->addr2);
1335 			break;
1336 		case ACT_DELBA:
1337 			RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1338 				 "ACT_ADDBADEL From :%pM\n", hdr->addr2);
1339 			break;
1340 		}
1341 		break;
1342 	default:
1343 		break;
1344 	}
1345 
1346 	return true;
1347 }
1348 EXPORT_SYMBOL_GPL(rtl_action_proc);
1349 
1350 static void setup_special_tx(struct rtl_priv *rtlpriv, struct rtl_ps_ctl *ppsc,
1351 			     int type)
1352 {
1353 	struct ieee80211_hw *hw = rtlpriv->hw;
1354 
1355 	rtlpriv->ra.is_special_data = true;
1356 	if (rtlpriv->cfg->ops->get_btc_status())
1357 		rtlpriv->btcoexist.btc_ops->btc_special_packet_notify(
1358 					rtlpriv, type);
1359 	rtl_lps_leave(hw);
1360 	ppsc->last_delaylps_stamp_jiffies = jiffies;
1361 }
1362 
1363 static const u8 *rtl_skb_ether_type_ptr(struct ieee80211_hw *hw,
1364 					struct sk_buff *skb, bool is_enc)
1365 {
1366 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1367 	u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb);
1368 	u8 encrypt_header_len = 0;
1369 	u8 offset;
1370 
1371 	switch (rtlpriv->sec.pairwise_enc_algorithm) {
1372 	case WEP40_ENCRYPTION:
1373 	case WEP104_ENCRYPTION:
1374 		encrypt_header_len = 4;/*WEP_IV_LEN*/
1375 		break;
1376 	case TKIP_ENCRYPTION:
1377 		encrypt_header_len = 8;/*TKIP_IV_LEN*/
1378 		break;
1379 	case AESCCMP_ENCRYPTION:
1380 		encrypt_header_len = 8;/*CCMP_HDR_LEN;*/
1381 		break;
1382 	default:
1383 		break;
1384 	}
1385 
1386 	offset = mac_hdr_len + SNAP_SIZE;
1387 	if (is_enc)
1388 		offset += encrypt_header_len;
1389 
1390 	return skb->data + offset;
1391 }
1392 
1393 /*should call before software enc*/
1394 u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx,
1395 		       bool is_enc)
1396 {
1397 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1398 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1399 	__le16 fc = rtl_get_fc(skb);
1400 	u16 ether_type;
1401 	const u8 *ether_type_ptr;
1402 	const struct iphdr *ip;
1403 
1404 	if (!ieee80211_is_data(fc))
1405 		goto end;
1406 
1407 	ether_type_ptr = rtl_skb_ether_type_ptr(hw, skb, is_enc);
1408 	ether_type = be16_to_cpup((__be16 *)ether_type_ptr);
1409 
1410 	if (ETH_P_IP == ether_type) {
1411 		ip = (struct iphdr *)((u8 *)ether_type_ptr +
1412 		     PROTOC_TYPE_SIZE);
1413 		if (IPPROTO_UDP == ip->protocol) {
1414 			struct udphdr *udp = (struct udphdr *)((u8 *)ip +
1415 							       (ip->ihl << 2));
1416 			if (((((u8 *)udp)[1] == 68) &&
1417 			     (((u8 *)udp)[3] == 67)) ||
1418 			    ((((u8 *)udp)[1] == 67) &&
1419 			     (((u8 *)udp)[3] == 68))) {
1420 				/* 68 : UDP BOOTP client
1421 				 * 67 : UDP BOOTP server
1422 				 */
1423 				RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV),
1424 					 DBG_DMESG, "dhcp %s !!\n",
1425 					 (is_tx) ? "Tx" : "Rx");
1426 
1427 				if (is_tx)
1428 					setup_special_tx(rtlpriv, ppsc,
1429 							 PACKET_DHCP);
1430 
1431 				return true;
1432 			}
1433 		}
1434 	} else if (ETH_P_ARP == ether_type) {
1435 		if (is_tx)
1436 			setup_special_tx(rtlpriv, ppsc, PACKET_ARP);
1437 
1438 		return true;
1439 	} else if (ETH_P_PAE == ether_type) {
1440 		/* EAPOL is seens as in-4way */
1441 		rtlpriv->btcoexist.btc_info.in_4way = true;
1442 		rtlpriv->btcoexist.btc_info.in_4way_ts = jiffies;
1443 	rtlpriv->btcoexist.btc_info.in_4way_ts = jiffies;
1444 
1445 		RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1446 			 "802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx");
1447 
1448 		if (is_tx) {
1449 			rtlpriv->ra.is_special_data = true;
1450 			rtl_lps_leave(hw);
1451 			ppsc->last_delaylps_stamp_jiffies = jiffies;
1452 
1453 			setup_special_tx(rtlpriv, ppsc, PACKET_EAPOL);
1454 		}
1455 
1456 		return true;
1457 	} else if (ETH_P_IPV6 == ether_type) {
1458 		/* TODO: Handle any IPv6 cases that need special handling.
1459 		 * For now, always return false
1460 		 */
1461 		goto end;
1462 	}
1463 
1464 end:
1465 	rtlpriv->ra.is_special_data = false;
1466 	return false;
1467 }
1468 EXPORT_SYMBOL_GPL(rtl_is_special_data);
1469 
1470 bool rtl_is_tx_report_skb(struct ieee80211_hw *hw, struct sk_buff *skb)
1471 {
1472 	u16 ether_type;
1473 	const u8 *ether_type_ptr;
1474 
1475 	ether_type_ptr = rtl_skb_ether_type_ptr(hw, skb, true);
1476 	ether_type = be16_to_cpup((__be16 *)ether_type_ptr);
1477 
1478 	/* EAPOL */
1479 	if (ether_type == ETH_P_PAE)
1480 		return true;
1481 
1482 	return false;
1483 }
1484 
1485 static u16 rtl_get_tx_report_sn(struct ieee80211_hw *hw)
1486 {
1487 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1488 	struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1489 	u16 sn;
1490 
1491 	sn = atomic_inc_return(&tx_report->sn) & 0x0FFF;
1492 
1493 	tx_report->last_sent_sn = sn;
1494 	tx_report->last_sent_time = jiffies;
1495 
1496 	RT_TRACE(rtlpriv, COMP_TX_REPORT, DBG_DMESG,
1497 		 "Send TX-Report sn=0x%X\n", sn);
1498 
1499 	return sn;
1500 }
1501 
1502 void rtl_get_tx_report(struct rtl_tcb_desc *ptcb_desc, u8 *pdesc,
1503 		       struct ieee80211_hw *hw)
1504 {
1505 	if (ptcb_desc->use_spe_rpt) {
1506 		u16 sn = rtl_get_tx_report_sn(hw);
1507 
1508 		SET_TX_DESC_SPE_RPT(pdesc, 1);
1509 		SET_TX_DESC_SW_DEFINE(pdesc, sn);
1510 	}
1511 }
1512 EXPORT_SYMBOL_GPL(rtl_get_tx_report);
1513 
1514 void rtl_tx_report_handler(struct ieee80211_hw *hw, u8 *tmp_buf, u8 c2h_cmd_len)
1515 {
1516 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1517 	struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1518 	u16 sn;
1519 
1520 	sn = ((tmp_buf[7] & 0x0F) << 8) | tmp_buf[6];
1521 
1522 	tx_report->last_recv_sn = sn;
1523 
1524 	RT_TRACE(rtlpriv, COMP_TX_REPORT, DBG_DMESG,
1525 		 "Recv TX-Report st=0x%02X sn=0x%X retry=0x%X\n",
1526 		 tmp_buf[0], sn, tmp_buf[2]);
1527 }
1528 EXPORT_SYMBOL_GPL(rtl_tx_report_handler);
1529 
1530 bool rtl_check_tx_report_acked(struct ieee80211_hw *hw)
1531 {
1532 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1533 	struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1534 
1535 	if (tx_report->last_sent_sn == tx_report->last_recv_sn)
1536 		return true;
1537 
1538 	if (time_before(tx_report->last_sent_time + 3 * HZ, jiffies)) {
1539 		RT_TRACE(rtlpriv, COMP_TX_REPORT, DBG_WARNING,
1540 			 "Check TX-Report timeout!!\n");
1541 		return true;	/* 3 sec. (timeout) seen as acked */
1542 	}
1543 
1544 	return false;
1545 }
1546 
1547 void rtl_wait_tx_report_acked(struct ieee80211_hw *hw, u32 wait_ms)
1548 {
1549 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1550 	int i;
1551 
1552 	for (i = 0; i < wait_ms; i++) {
1553 		if (rtl_check_tx_report_acked(hw))
1554 			break;
1555 		usleep_range(1000, 2000);
1556 		RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1557 			 "Wait 1ms (%d/%d) to disable key.\n", i, wait_ms);
1558 	}
1559 }
1560 
1561 u32 rtl_get_hal_edca_param(struct ieee80211_hw *hw,
1562 			   struct ieee80211_vif *vif,
1563 			   enum wireless_mode wirelessmode,
1564 			   struct ieee80211_tx_queue_params *param)
1565 {
1566 	u32 reg = 0;
1567 	u8 sifstime = 10;
1568 	u8 slottime = 20;
1569 
1570 	/* AIFS = AIFSN * slot time + SIFS */
1571 	switch (wirelessmode) {
1572 	case WIRELESS_MODE_A:
1573 	case WIRELESS_MODE_N_24G:
1574 	case WIRELESS_MODE_N_5G:
1575 	case WIRELESS_MODE_AC_5G:
1576 	case WIRELESS_MODE_AC_24G:
1577 		sifstime = 16;
1578 		slottime = 9;
1579 		break;
1580 	case WIRELESS_MODE_G:
1581 		slottime = (vif->bss_conf.use_short_slot ? 9 : 20);
1582 		break;
1583 	default:
1584 		break;
1585 	}
1586 
1587 	reg |= (param->txop & 0x7FF) << 16;
1588 	reg |= (fls(param->cw_max) & 0xF) << 12;
1589 	reg |= (fls(param->cw_min) & 0xF) << 8;
1590 	reg |= (param->aifs & 0x0F) * slottime + sifstime;
1591 
1592 	return reg;
1593 }
1594 EXPORT_SYMBOL_GPL(rtl_get_hal_edca_param);
1595 
1596 /*********************************************************
1597  *
1598  * functions called by core.c
1599  *
1600  *********************************************************/
1601 int rtl_tx_agg_start(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1602 		     struct ieee80211_sta *sta, u16 tid, u16 *ssn)
1603 {
1604 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1605 	struct rtl_tid_data *tid_data;
1606 	struct rtl_sta_info *sta_entry = NULL;
1607 
1608 	if (sta == NULL)
1609 		return -EINVAL;
1610 
1611 	if (unlikely(tid >= MAX_TID_COUNT))
1612 		return -EINVAL;
1613 
1614 	sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1615 	if (!sta_entry)
1616 		return -ENXIO;
1617 	tid_data = &sta_entry->tids[tid];
1618 
1619 	RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1620 		 "on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1621 		 *ssn);
1622 
1623 	tid_data->agg.agg_state = RTL_AGG_START;
1624 
1625 	ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1626 	return 0;
1627 }
1628 
1629 int rtl_tx_agg_stop(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1630 		    struct ieee80211_sta *sta, u16 tid)
1631 {
1632 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1633 	struct rtl_sta_info *sta_entry = NULL;
1634 
1635 	if (sta == NULL)
1636 		return -EINVAL;
1637 
1638 	RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1639 		 "on ra = %pM tid = %d\n", sta->addr, tid);
1640 
1641 	if (unlikely(tid >= MAX_TID_COUNT))
1642 		return -EINVAL;
1643 
1644 	sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1645 	sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP;
1646 
1647 	ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1648 	return 0;
1649 }
1650 
1651 int rtl_rx_agg_start(struct ieee80211_hw *hw,
1652 		     struct ieee80211_sta *sta, u16 tid)
1653 {
1654 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1655 	struct rtl_tid_data *tid_data;
1656 	struct rtl_sta_info *sta_entry = NULL;
1657 	u8 reject_agg;
1658 
1659 	if (sta == NULL)
1660 		return -EINVAL;
1661 
1662 	if (unlikely(tid >= MAX_TID_COUNT))
1663 		return -EINVAL;
1664 
1665 	if (rtlpriv->cfg->ops->get_btc_status()) {
1666 		rtlpriv->btcoexist.btc_ops->btc_get_ampdu_cfg(rtlpriv,
1667 							      &reject_agg,
1668 							      NULL, NULL);
1669 		if (reject_agg)
1670 			return -EINVAL;
1671 	}
1672 
1673 	sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1674 	if (!sta_entry)
1675 		return -ENXIO;
1676 	tid_data = &sta_entry->tids[tid];
1677 
1678 	RT_TRACE(rtlpriv, COMP_RECV, DBG_DMESG,
1679 		 "on ra = %pM tid = %d\n", sta->addr, tid);
1680 
1681 	tid_data->agg.rx_agg_state = RTL_RX_AGG_START;
1682 	return 0;
1683 }
1684 
1685 int rtl_rx_agg_stop(struct ieee80211_hw *hw,
1686 		    struct ieee80211_sta *sta, u16 tid)
1687 {
1688 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1689 	struct rtl_sta_info *sta_entry = NULL;
1690 
1691 	if (sta == NULL)
1692 		return -EINVAL;
1693 
1694 	RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1695 		 "on ra = %pM tid = %d\n", sta->addr, tid);
1696 
1697 	if (unlikely(tid >= MAX_TID_COUNT))
1698 		return -EINVAL;
1699 
1700 	sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1701 	sta_entry->tids[tid].agg.rx_agg_state = RTL_RX_AGG_STOP;
1702 
1703 	return 0;
1704 }
1705 int rtl_tx_agg_oper(struct ieee80211_hw *hw,
1706 		struct ieee80211_sta *sta, u16 tid)
1707 {
1708 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1709 	struct rtl_sta_info *sta_entry = NULL;
1710 
1711 	if (sta == NULL)
1712 		return -EINVAL;
1713 
1714 	RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1715 		 "on ra = %pM tid = %d\n", sta->addr, tid);
1716 
1717 	if (unlikely(tid >= MAX_TID_COUNT))
1718 		return -EINVAL;
1719 
1720 	sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1721 	sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL;
1722 
1723 	return 0;
1724 }
1725 
1726 void rtl_rx_ampdu_apply(struct rtl_priv *rtlpriv)
1727 {
1728 	struct rtl_btc_ops *btc_ops = rtlpriv->btcoexist.btc_ops;
1729 	u8 reject_agg, ctrl_agg_size = 0, agg_size;
1730 
1731 	if (rtlpriv->cfg->ops->get_btc_status())
1732 		btc_ops->btc_get_ampdu_cfg(rtlpriv, &reject_agg,
1733 					   &ctrl_agg_size, &agg_size);
1734 
1735 	RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_DMESG,
1736 		 "Set RX AMPDU: coex - reject=%d, ctrl_agg_size=%d, size=%d",
1737 		 reject_agg, ctrl_agg_size, agg_size);
1738 
1739 	rtlpriv->hw->max_rx_aggregation_subframes =
1740 		(ctrl_agg_size ? agg_size : IEEE80211_MAX_AMPDU_BUF);
1741 }
1742 EXPORT_SYMBOL(rtl_rx_ampdu_apply);
1743 
1744 /*********************************************************
1745  *
1746  * wq & timer callback functions
1747  *
1748  *********************************************************/
1749 /* this function is used for roaming */
1750 void rtl_beacon_statistic(struct ieee80211_hw *hw, struct sk_buff *skb)
1751 {
1752 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1753 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1754 
1755 	if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION)
1756 		return;
1757 
1758 	if (rtlpriv->mac80211.link_state < MAC80211_LINKED)
1759 		return;
1760 
1761 	/* check if this really is a beacon */
1762 	if (!ieee80211_is_beacon(hdr->frame_control) &&
1763 	    !ieee80211_is_probe_resp(hdr->frame_control))
1764 		return;
1765 
1766 	/* min. beacon length + FCS_LEN */
1767 	if (skb->len <= 40 + FCS_LEN)
1768 		return;
1769 
1770 	/* and only beacons from the associated BSSID, please */
1771 	if (!ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid))
1772 		return;
1773 
1774 	rtlpriv->link_info.bcn_rx_inperiod++;
1775 }
1776 EXPORT_SYMBOL_GPL(rtl_beacon_statistic);
1777 
1778 static void rtl_free_entries_from_scan_list(struct ieee80211_hw *hw)
1779 {
1780 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1781 	struct rtl_bssid_entry *entry, *next;
1782 
1783 	list_for_each_entry_safe(entry, next, &rtlpriv->scan_list.list, list) {
1784 		list_del(&entry->list);
1785 		kfree(entry);
1786 		rtlpriv->scan_list.num--;
1787 	}
1788 }
1789 
1790 void rtl_scan_list_expire(struct ieee80211_hw *hw)
1791 {
1792 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1793 	struct rtl_bssid_entry *entry, *next;
1794 	unsigned long flags;
1795 
1796 	spin_lock_irqsave(&rtlpriv->locks.scan_list_lock, flags);
1797 
1798 	list_for_each_entry_safe(entry, next, &rtlpriv->scan_list.list, list) {
1799 		/* 180 seconds */
1800 		if (jiffies_to_msecs(jiffies - entry->age) < 180000)
1801 			continue;
1802 
1803 		list_del(&entry->list);
1804 		rtlpriv->scan_list.num--;
1805 
1806 		RT_TRACE(rtlpriv, COMP_SCAN, DBG_LOUD,
1807 			 "BSSID=%pM is expire in scan list (total=%d)\n",
1808 			 entry->bssid, rtlpriv->scan_list.num);
1809 		kfree(entry);
1810 	}
1811 
1812 	spin_unlock_irqrestore(&rtlpriv->locks.scan_list_lock, flags);
1813 
1814 	rtlpriv->btcoexist.btc_info.ap_num = rtlpriv->scan_list.num;
1815 }
1816 
1817 void rtl_collect_scan_list(struct ieee80211_hw *hw, struct sk_buff *skb)
1818 {
1819 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1820 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1821 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1822 	unsigned long flags;
1823 
1824 	struct rtl_bssid_entry *entry;
1825 	bool entry_found = false;
1826 
1827 	/* check if it is scanning */
1828 	if (!mac->act_scanning)
1829 		return;
1830 
1831 	/* check if this really is a beacon */
1832 	if (!ieee80211_is_beacon(hdr->frame_control) &&
1833 	    !ieee80211_is_probe_resp(hdr->frame_control))
1834 		return;
1835 
1836 	spin_lock_irqsave(&rtlpriv->locks.scan_list_lock, flags);
1837 
1838 	list_for_each_entry(entry, &rtlpriv->scan_list.list, list) {
1839 		if (memcmp(entry->bssid, hdr->addr3, ETH_ALEN) == 0) {
1840 			list_del_init(&entry->list);
1841 			entry_found = true;
1842 			RT_TRACE(rtlpriv, COMP_SCAN, DBG_LOUD,
1843 				 "Update BSSID=%pM to scan list (total=%d)\n",
1844 				 hdr->addr3, rtlpriv->scan_list.num);
1845 			break;
1846 		}
1847 	}
1848 
1849 	if (!entry_found) {
1850 		entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
1851 
1852 		if (!entry)
1853 			goto label_err;
1854 
1855 		memcpy(entry->bssid, hdr->addr3, ETH_ALEN);
1856 		rtlpriv->scan_list.num++;
1857 
1858 		RT_TRACE(rtlpriv, COMP_SCAN, DBG_LOUD,
1859 			 "Add BSSID=%pM to scan list (total=%d)\n",
1860 			 hdr->addr3, rtlpriv->scan_list.num);
1861 	}
1862 
1863 	entry->age = jiffies;
1864 
1865 	list_add_tail(&entry->list, &rtlpriv->scan_list.list);
1866 
1867 label_err:
1868 	spin_unlock_irqrestore(&rtlpriv->locks.scan_list_lock, flags);
1869 }
1870 EXPORT_SYMBOL(rtl_collect_scan_list);
1871 
1872 void rtl_watchdog_wq_callback(void *data)
1873 {
1874 	struct rtl_works *rtlworks = container_of_dwork_rtl(data,
1875 							    struct rtl_works,
1876 							    watchdog_wq);
1877 	struct ieee80211_hw *hw = rtlworks->hw;
1878 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1879 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1880 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1881 	bool busytraffic = false;
1882 	bool tx_busy_traffic = false;
1883 	bool rx_busy_traffic = false;
1884 	bool higher_busytraffic = false;
1885 	bool higher_busyrxtraffic = false;
1886 	u8 idx, tid;
1887 	u32 rx_cnt_inp4eriod = 0;
1888 	u32 tx_cnt_inp4eriod = 0;
1889 	u32 aver_rx_cnt_inperiod = 0;
1890 	u32 aver_tx_cnt_inperiod = 0;
1891 	u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0};
1892 	u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0};
1893 
1894 	if (is_hal_stop(rtlhal))
1895 		return;
1896 
1897 	/* <1> Determine if action frame is allowed */
1898 	if (mac->link_state > MAC80211_NOLINK) {
1899 		if (mac->cnt_after_linked < 20)
1900 			mac->cnt_after_linked++;
1901 	} else {
1902 		mac->cnt_after_linked = 0;
1903 	}
1904 
1905 	/* <2> to check if traffic busy, if
1906 	 * busytraffic we don't change channel
1907 	 */
1908 	if (mac->link_state >= MAC80211_LINKED) {
1909 
1910 		/* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */
1911 		for (idx = 0; idx <= 2; idx++) {
1912 			rtlpriv->link_info.num_rx_in4period[idx] =
1913 			    rtlpriv->link_info.num_rx_in4period[idx + 1];
1914 			rtlpriv->link_info.num_tx_in4period[idx] =
1915 			    rtlpriv->link_info.num_tx_in4period[idx + 1];
1916 		}
1917 		rtlpriv->link_info.num_rx_in4period[3] =
1918 		    rtlpriv->link_info.num_rx_inperiod;
1919 		rtlpriv->link_info.num_tx_in4period[3] =
1920 		    rtlpriv->link_info.num_tx_inperiod;
1921 		for (idx = 0; idx <= 3; idx++) {
1922 			rx_cnt_inp4eriod +=
1923 			    rtlpriv->link_info.num_rx_in4period[idx];
1924 			tx_cnt_inp4eriod +=
1925 			    rtlpriv->link_info.num_tx_in4period[idx];
1926 		}
1927 		aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4;
1928 		aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4;
1929 
1930 		/* (2) check traffic busy */
1931 		if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) {
1932 			busytraffic = true;
1933 			if (aver_rx_cnt_inperiod > aver_tx_cnt_inperiod)
1934 				rx_busy_traffic = true;
1935 			else
1936 				tx_busy_traffic = false;
1937 		}
1938 
1939 		/* Higher Tx/Rx data. */
1940 		if (aver_rx_cnt_inperiod > 4000 ||
1941 		    aver_tx_cnt_inperiod > 4000) {
1942 			higher_busytraffic = true;
1943 
1944 			/* Extremely high Rx data. */
1945 			if (aver_rx_cnt_inperiod > 5000)
1946 				higher_busyrxtraffic = true;
1947 		}
1948 
1949 		/* check every tid's tx traffic */
1950 		for (tid = 0; tid <= 7; tid++) {
1951 			for (idx = 0; idx <= 2; idx++)
1952 				rtlpriv->link_info.tidtx_in4period[tid][idx] =
1953 					rtlpriv->link_info.tidtx_in4period[tid]
1954 					[idx + 1];
1955 			rtlpriv->link_info.tidtx_in4period[tid][3] =
1956 				rtlpriv->link_info.tidtx_inperiod[tid];
1957 
1958 			for (idx = 0; idx <= 3; idx++)
1959 				tidtx_inp4eriod[tid] +=
1960 				   rtlpriv->link_info.tidtx_in4period[tid][idx];
1961 			aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4;
1962 			if (aver_tidtx_inperiod[tid] > 5000)
1963 				rtlpriv->link_info.higher_busytxtraffic[tid] =
1964 									true;
1965 			else
1966 				rtlpriv->link_info.higher_busytxtraffic[tid] =
1967 									false;
1968 		}
1969 
1970 		/* PS is controlled by coex. */
1971 		if (rtlpriv->cfg->ops->get_btc_status() &&
1972 		    rtlpriv->btcoexist.btc_ops->btc_is_bt_ctrl_lps(rtlpriv))
1973 			goto label_lps_done;
1974 
1975 		if (((rtlpriv->link_info.num_rx_inperiod +
1976 		      rtlpriv->link_info.num_tx_inperiod) > 8) ||
1977 		    (rtlpriv->link_info.num_rx_inperiod > 2))
1978 			rtl_lps_leave(hw);
1979 		else
1980 			rtl_lps_enter(hw);
1981 
1982 label_lps_done:
1983 		;
1984 	}
1985 
1986 	rtlpriv->link_info.num_rx_inperiod = 0;
1987 	rtlpriv->link_info.num_tx_inperiod = 0;
1988 	for (tid = 0; tid <= 7; tid++)
1989 		rtlpriv->link_info.tidtx_inperiod[tid] = 0;
1990 
1991 	rtlpriv->link_info.busytraffic = busytraffic;
1992 	rtlpriv->link_info.higher_busytraffic = higher_busytraffic;
1993 	rtlpriv->link_info.rx_busy_traffic = rx_busy_traffic;
1994 	rtlpriv->link_info.tx_busy_traffic = tx_busy_traffic;
1995 	rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic;
1996 
1997 	rtlpriv->stats.txbytesunicast_inperiod =
1998 		rtlpriv->stats.txbytesunicast -
1999 		rtlpriv->stats.txbytesunicast_last;
2000 	rtlpriv->stats.rxbytesunicast_inperiod =
2001 		rtlpriv->stats.rxbytesunicast -
2002 		rtlpriv->stats.rxbytesunicast_last;
2003 	rtlpriv->stats.txbytesunicast_last = rtlpriv->stats.txbytesunicast;
2004 	rtlpriv->stats.rxbytesunicast_last = rtlpriv->stats.rxbytesunicast;
2005 
2006 	rtlpriv->stats.txbytesunicast_inperiod_tp =
2007 		(u32)(rtlpriv->stats.txbytesunicast_inperiod * 8 / 2 /
2008 		1024 / 1024);
2009 	rtlpriv->stats.rxbytesunicast_inperiod_tp =
2010 		(u32)(rtlpriv->stats.rxbytesunicast_inperiod * 8 / 2 /
2011 		1024 / 1024);
2012 
2013 	/* <3> DM */
2014 	if (!rtlpriv->cfg->mod_params->disable_watchdog)
2015 		rtlpriv->cfg->ops->dm_watchdog(hw);
2016 
2017 	/* <4> roaming */
2018 	if (mac->link_state == MAC80211_LINKED &&
2019 	    mac->opmode == NL80211_IFTYPE_STATION) {
2020 		if ((rtlpriv->link_info.bcn_rx_inperiod +
2021 		    rtlpriv->link_info.num_rx_inperiod) == 0) {
2022 			rtlpriv->link_info.roam_times++;
2023 			RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG,
2024 				 "AP off for %d s\n",
2025 				(rtlpriv->link_info.roam_times * 2));
2026 
2027 			/* if we can't recv beacon for 10s,
2028 			 * we should reconnect this AP
2029 			 */
2030 			if (rtlpriv->link_info.roam_times >= 5) {
2031 				pr_err("AP off, try to reconnect now\n");
2032 				rtlpriv->link_info.roam_times = 0;
2033 				ieee80211_connection_loss(
2034 					rtlpriv->mac80211.vif);
2035 			}
2036 		} else {
2037 			rtlpriv->link_info.roam_times = 0;
2038 		}
2039 	}
2040 
2041 	if (rtlpriv->cfg->ops->get_btc_status())
2042 		rtlpriv->btcoexist.btc_ops->btc_periodical(rtlpriv);
2043 
2044 	if (rtlpriv->btcoexist.btc_info.in_4way) {
2045 		if (time_after(jiffies, rtlpriv->btcoexist.btc_info.in_4way_ts +
2046 			       msecs_to_jiffies(IN_4WAY_TIMEOUT_TIME)))
2047 			rtlpriv->btcoexist.btc_info.in_4way = false;
2048 	}
2049 
2050 	rtlpriv->link_info.bcn_rx_inperiod = 0;
2051 
2052 	/* <6> scan list */
2053 	rtl_scan_list_expire(hw);
2054 }
2055 
2056 void rtl_watch_dog_timer_callback(struct timer_list *t)
2057 {
2058 	struct rtl_priv *rtlpriv = from_timer(rtlpriv, t, works.watchdog_timer);
2059 
2060 	queue_delayed_work(rtlpriv->works.rtl_wq,
2061 			   &rtlpriv->works.watchdog_wq, 0);
2062 
2063 	mod_timer(&rtlpriv->works.watchdog_timer,
2064 		  jiffies + MSECS(RTL_WATCH_DOG_TIME));
2065 }
2066 void rtl_fwevt_wq_callback(void *data)
2067 {
2068 	struct rtl_works *rtlworks =
2069 		container_of_dwork_rtl(data, struct rtl_works, fwevt_wq);
2070 	struct ieee80211_hw *hw = rtlworks->hw;
2071 	struct rtl_priv *rtlpriv = rtl_priv(hw);
2072 
2073 	rtlpriv->cfg->ops->c2h_command_handle(hw);
2074 }
2075 
2076 void rtl_c2hcmd_enqueue(struct ieee80211_hw *hw, u8 tag, u8 len, u8 *val)
2077 {
2078 	struct rtl_priv *rtlpriv = rtl_priv(hw);
2079 	unsigned long flags;
2080 	struct rtl_c2hcmd *c2hcmd;
2081 
2082 	c2hcmd = kmalloc(sizeof(*c2hcmd),
2083 			 in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
2084 
2085 	if (!c2hcmd)
2086 		goto label_err;
2087 
2088 	c2hcmd->val = kmalloc(len,
2089 			      in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
2090 
2091 	if (!c2hcmd->val)
2092 		goto label_err2;
2093 
2094 	/* fill data */
2095 	c2hcmd->tag = tag;
2096 	c2hcmd->len = len;
2097 	memcpy(c2hcmd->val, val, len);
2098 
2099 	/* enqueue */
2100 	spin_lock_irqsave(&rtlpriv->locks.c2hcmd_lock, flags);
2101 
2102 	list_add_tail(&c2hcmd->list, &rtlpriv->c2hcmd_list);
2103 
2104 	spin_unlock_irqrestore(&rtlpriv->locks.c2hcmd_lock, flags);
2105 
2106 	/* wake up wq */
2107 	queue_delayed_work(rtlpriv->works.rtl_wq, &rtlpriv->works.c2hcmd_wq, 0);
2108 
2109 	return;
2110 
2111 label_err2:
2112 	kfree(c2hcmd);
2113 
2114 label_err:
2115 	RT_TRACE(rtlpriv, COMP_CMD, DBG_WARNING,
2116 		 "C2H cmd enqueue fail.\n");
2117 }
2118 EXPORT_SYMBOL(rtl_c2hcmd_enqueue);
2119 
2120 void rtl_c2hcmd_launcher(struct ieee80211_hw *hw, int exec)
2121 {
2122 	struct rtl_priv *rtlpriv = rtl_priv(hw);
2123 	unsigned long flags;
2124 	struct rtl_c2hcmd *c2hcmd;
2125 	int i;
2126 
2127 	for (i = 0; i < 200; i++) {
2128 		/* dequeue a task */
2129 		spin_lock_irqsave(&rtlpriv->locks.c2hcmd_lock, flags);
2130 
2131 		c2hcmd = list_first_entry_or_null(&rtlpriv->c2hcmd_list,
2132 						  struct rtl_c2hcmd, list);
2133 
2134 		if (c2hcmd)
2135 			list_del(&c2hcmd->list);
2136 
2137 		spin_unlock_irqrestore(&rtlpriv->locks.c2hcmd_lock, flags);
2138 
2139 		/* do it */
2140 		if (!c2hcmd)
2141 			break;
2142 
2143 		if (rtlpriv->cfg->ops->c2h_content_parsing && exec)
2144 			rtlpriv->cfg->ops->c2h_content_parsing(hw,
2145 					c2hcmd->tag, c2hcmd->len, c2hcmd->val);
2146 
2147 		/* free */
2148 		kfree(c2hcmd->val);
2149 
2150 		kfree(c2hcmd);
2151 	}
2152 }
2153 
2154 void rtl_c2hcmd_wq_callback(void *data)
2155 {
2156 	struct rtl_works *rtlworks = container_of_dwork_rtl(data,
2157 							    struct rtl_works,
2158 							    c2hcmd_wq);
2159 	struct ieee80211_hw *hw = rtlworks->hw;
2160 
2161 	rtl_c2hcmd_launcher(hw, 1);
2162 }
2163 
2164 void rtl_easy_concurrent_retrytimer_callback(struct timer_list *t)
2165 {
2166 	struct rtl_priv *rtlpriv =
2167 		from_timer(rtlpriv, t, works.dualmac_easyconcurrent_retrytimer);
2168 	struct ieee80211_hw *hw = rtlpriv->hw;
2169 	struct rtl_priv *buddy_priv = rtlpriv->buddy_priv;
2170 
2171 	if (buddy_priv == NULL)
2172 		return;
2173 
2174 	rtlpriv->cfg->ops->dualmac_easy_concurrent(hw);
2175 }
2176 /*********************************************************
2177  *
2178  * frame process functions
2179  *
2180  *********************************************************/
2181 u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie)
2182 {
2183 	struct ieee80211_mgmt *mgmt = (void *)data;
2184 	u8 *pos, *end;
2185 
2186 	pos = (u8 *)mgmt->u.beacon.variable;
2187 	end = data + len;
2188 	while (pos < end) {
2189 		if (pos + 2 + pos[1] > end)
2190 			return NULL;
2191 
2192 		if (pos[0] == ie)
2193 			return pos;
2194 
2195 		pos += 2 + pos[1];
2196 	}
2197 	return NULL;
2198 }
2199 
2200 /* when we use 2 rx ants we send IEEE80211_SMPS_OFF */
2201 /* when we use 1 rx ant we send IEEE80211_SMPS_STATIC */
2202 static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw,
2203 				     enum ieee80211_smps_mode smps,
2204 				     u8 *da, u8 *bssid)
2205 {
2206 	struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
2207 	struct sk_buff *skb;
2208 	struct ieee80211_mgmt *action_frame;
2209 
2210 	/* 27 = header + category + action + smps mode */
2211 	skb = dev_alloc_skb(27 + hw->extra_tx_headroom);
2212 	if (!skb)
2213 		return NULL;
2214 
2215 	skb_reserve(skb, hw->extra_tx_headroom);
2216 	action_frame = skb_put_zero(skb, 27);
2217 	memcpy(action_frame->da, da, ETH_ALEN);
2218 	memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN);
2219 	memcpy(action_frame->bssid, bssid, ETH_ALEN);
2220 	action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2221 						  IEEE80211_STYPE_ACTION);
2222 	action_frame->u.action.category = WLAN_CATEGORY_HT;
2223 	action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS;
2224 	switch (smps) {
2225 	case IEEE80211_SMPS_AUTOMATIC:/* 0 */
2226 	case IEEE80211_SMPS_NUM_MODES:/* 4 */
2227 		WARN_ON(1);
2228 	/* Here will get a 'MISSING_BREAK' in Coverity Test, just ignore it.
2229 	 * According to Kernel Code, here is right.
2230 	 */
2231 	case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/
2232 		action_frame->u.action.u.ht_smps.smps_control =
2233 				WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */
2234 		break;
2235 	case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/
2236 		action_frame->u.action.u.ht_smps.smps_control =
2237 				WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */
2238 		break;
2239 	case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/
2240 		action_frame->u.action.u.ht_smps.smps_control =
2241 				WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */
2242 		break;
2243 	}
2244 
2245 	return skb;
2246 }
2247 
2248 int rtl_send_smps_action(struct ieee80211_hw *hw,
2249 			 struct ieee80211_sta *sta,
2250 			 enum ieee80211_smps_mode smps)
2251 {
2252 	struct rtl_priv *rtlpriv = rtl_priv(hw);
2253 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
2254 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
2255 	struct sk_buff *skb = NULL;
2256 	struct rtl_tcb_desc tcb_desc;
2257 	u8 bssid[ETH_ALEN] = {0};
2258 
2259 	memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
2260 
2261 	if (rtlpriv->mac80211.act_scanning)
2262 		goto err_free;
2263 
2264 	if (!sta)
2265 		goto err_free;
2266 
2267 	if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
2268 		goto err_free;
2269 
2270 	if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
2271 		goto err_free;
2272 
2273 	if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP)
2274 		memcpy(bssid, rtlpriv->efuse.dev_addr, ETH_ALEN);
2275 	else
2276 		memcpy(bssid, rtlpriv->mac80211.bssid, ETH_ALEN);
2277 
2278 	skb = rtl_make_smps_action(hw, smps, sta->addr, bssid);
2279 	/* this is a type = mgmt * stype = action frame */
2280 	if (skb) {
2281 		struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
2282 		struct rtl_sta_info *sta_entry =
2283 			(struct rtl_sta_info *) sta->drv_priv;
2284 		sta_entry->mimo_ps = smps;
2285 		/* rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0, true); */
2286 
2287 		info->control.rates[0].idx = 0;
2288 		info->band = hw->conf.chandef.chan->band;
2289 		rtlpriv->intf_ops->adapter_tx(hw, sta, skb, &tcb_desc);
2290 	}
2291 	return 1;
2292 
2293 err_free:
2294 	return 0;
2295 }
2296 EXPORT_SYMBOL(rtl_send_smps_action);
2297 
2298 void rtl_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation)
2299 {
2300 	struct rtl_priv *rtlpriv = rtl_priv(hw);
2301 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
2302 	enum io_type iotype;
2303 
2304 	if (!is_hal_stop(rtlhal)) {
2305 		switch (operation) {
2306 		case SCAN_OPT_BACKUP:
2307 			iotype = IO_CMD_PAUSE_DM_BY_SCAN;
2308 			rtlpriv->cfg->ops->set_hw_reg(hw,
2309 						      HW_VAR_IO_CMD,
2310 						      (u8 *)&iotype);
2311 			break;
2312 		case SCAN_OPT_RESTORE:
2313 			iotype = IO_CMD_RESUME_DM_BY_SCAN;
2314 			rtlpriv->cfg->ops->set_hw_reg(hw,
2315 						      HW_VAR_IO_CMD,
2316 						      (u8 *)&iotype);
2317 			break;
2318 		default:
2319 			pr_err("Unknown Scan Backup operation.\n");
2320 			break;
2321 		}
2322 	}
2323 }
2324 EXPORT_SYMBOL(rtl_phy_scan_operation_backup);
2325 
2326 /* because mac80211 have issues when can receive del ba
2327  * so here we just make a fake del_ba if we receive a ba_req
2328  * but rx_agg was opened to let mac80211 release some ba
2329  * related resources, so please this del_ba for tx
2330  */
2331 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw,
2332 				u8 *sa, u8 *bssid, u16 tid)
2333 {
2334 	struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
2335 	struct sk_buff *skb;
2336 	struct ieee80211_mgmt *action_frame;
2337 	u16 params;
2338 
2339 	/* 27 = header + category + action + smps mode */
2340 	skb = dev_alloc_skb(34 + hw->extra_tx_headroom);
2341 	if (!skb)
2342 		return NULL;
2343 
2344 	skb_reserve(skb, hw->extra_tx_headroom);
2345 	action_frame = skb_put_zero(skb, 34);
2346 	memcpy(action_frame->sa, sa, ETH_ALEN);
2347 	memcpy(action_frame->da, rtlefuse->dev_addr, ETH_ALEN);
2348 	memcpy(action_frame->bssid, bssid, ETH_ALEN);
2349 	action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2350 						  IEEE80211_STYPE_ACTION);
2351 	action_frame->u.action.category = WLAN_CATEGORY_BACK;
2352 	action_frame->u.action.u.delba.action_code = WLAN_ACTION_DELBA;
2353 	params = (u16)(1 << 11);	/* bit 11 initiator */
2354 	params |= (u16)(tid << 12);	/* bit 15:12 TID number */
2355 
2356 	action_frame->u.action.u.delba.params = cpu_to_le16(params);
2357 	action_frame->u.action.u.delba.reason_code =
2358 		cpu_to_le16(WLAN_REASON_QSTA_TIMEOUT);
2359 
2360 	return skb;
2361 }
2362 
2363 /*********************************************************
2364  *
2365  * IOT functions
2366  *
2367  *********************************************************/
2368 static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw,
2369 				  struct octet_string vendor_ie)
2370 {
2371 	struct rtl_priv *rtlpriv = rtl_priv(hw);
2372 	bool matched = false;
2373 	static u8 athcap_1[] = { 0x00, 0x03, 0x7F };
2374 	static u8 athcap_2[] = { 0x00, 0x13, 0x74 };
2375 	static u8 broadcap_1[] = { 0x00, 0x10, 0x18 };
2376 	static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 };
2377 	static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 };
2378 	static u8 racap[] = { 0x00, 0x0c, 0x43 };
2379 	static u8 ciscocap[] = { 0x00, 0x40, 0x96 };
2380 	static u8 marvcap[] = { 0x00, 0x50, 0x43 };
2381 
2382 	if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 ||
2383 		memcmp(vendor_ie.octet, athcap_2, 3) == 0) {
2384 		rtlpriv->mac80211.vendor = PEER_ATH;
2385 		matched = true;
2386 	} else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 ||
2387 		memcmp(vendor_ie.octet, broadcap_2, 3) == 0 ||
2388 		memcmp(vendor_ie.octet, broadcap_3, 3) == 0) {
2389 		rtlpriv->mac80211.vendor = PEER_BROAD;
2390 		matched = true;
2391 	} else if (memcmp(vendor_ie.octet, racap, 3) == 0) {
2392 		rtlpriv->mac80211.vendor = PEER_RAL;
2393 		matched = true;
2394 	} else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) {
2395 		rtlpriv->mac80211.vendor = PEER_CISCO;
2396 		matched = true;
2397 	} else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) {
2398 		rtlpriv->mac80211.vendor = PEER_MARV;
2399 		matched = true;
2400 	}
2401 
2402 	return matched;
2403 }
2404 
2405 static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data,
2406 		unsigned int len)
2407 {
2408 	struct ieee80211_mgmt *mgmt = (void *)data;
2409 	struct octet_string vendor_ie;
2410 	u8 *pos, *end;
2411 
2412 	pos = (u8 *)mgmt->u.beacon.variable;
2413 	end = data + len;
2414 	while (pos < end) {
2415 		if (pos[0] == 221) {
2416 			vendor_ie.length = pos[1];
2417 			vendor_ie.octet = &pos[2];
2418 			if (rtl_chk_vendor_ouisub(hw, vendor_ie))
2419 				return true;
2420 		}
2421 
2422 		if (pos + 2 + pos[1] > end)
2423 			return false;
2424 
2425 		pos += 2 + pos[1];
2426 	}
2427 	return false;
2428 }
2429 
2430 void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len)
2431 {
2432 	struct rtl_priv *rtlpriv = rtl_priv(hw);
2433 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
2434 	struct ieee80211_hdr *hdr = (void *)data;
2435 	u32 vendor = PEER_UNKNOWN;
2436 
2437 	static u8 ap3_1[3] = { 0x00, 0x14, 0xbf };
2438 	static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 };
2439 	static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e };
2440 	static u8 ap4_1[3] = { 0x00, 0x90, 0xcc };
2441 	static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e };
2442 	static u8 ap4_3[3] = { 0x00, 0x18, 0x02 };
2443 	static u8 ap4_4[3] = { 0x00, 0x17, 0x3f };
2444 	static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf };
2445 	static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 };
2446 	static u8 ap5_2[3] = { 0x00, 0x21, 0x91 };
2447 	static u8 ap5_3[3] = { 0x00, 0x24, 0x01 };
2448 	static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 };
2449 	static u8 ap5_5[3] = { 0x00, 0x17, 0x9A };
2450 	static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 };
2451 	static u8 ap6_1[3] = { 0x00, 0x17, 0x94 };
2452 	static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 };
2453 
2454 	if (mac->opmode != NL80211_IFTYPE_STATION)
2455 		return;
2456 
2457 	if (mac->link_state == MAC80211_NOLINK) {
2458 		mac->vendor = PEER_UNKNOWN;
2459 		return;
2460 	}
2461 
2462 	if (mac->cnt_after_linked > 2)
2463 		return;
2464 
2465 	/* check if this really is a beacon */
2466 	if (!ieee80211_is_beacon(hdr->frame_control))
2467 		return;
2468 
2469 	/* min. beacon length + FCS_LEN */
2470 	if (len <= 40 + FCS_LEN)
2471 		return;
2472 
2473 	/* and only beacons from the associated BSSID, please */
2474 	if (!ether_addr_equal_64bits(hdr->addr3, rtlpriv->mac80211.bssid))
2475 		return;
2476 
2477 	if (rtl_find_221_ie(hw, data, len))
2478 		vendor = mac->vendor;
2479 
2480 	if ((memcmp(mac->bssid, ap5_1, 3) == 0) ||
2481 		(memcmp(mac->bssid, ap5_2, 3) == 0) ||
2482 		(memcmp(mac->bssid, ap5_3, 3) == 0) ||
2483 		(memcmp(mac->bssid, ap5_4, 3) == 0) ||
2484 		(memcmp(mac->bssid, ap5_5, 3) == 0) ||
2485 		(memcmp(mac->bssid, ap5_6, 3) == 0) ||
2486 		vendor == PEER_ATH) {
2487 		vendor = PEER_ATH;
2488 		RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ath find\n");
2489 	} else if ((memcmp(mac->bssid, ap4_4, 3) == 0) ||
2490 		(memcmp(mac->bssid, ap4_5, 3) == 0) ||
2491 		(memcmp(mac->bssid, ap4_1, 3) == 0) ||
2492 		(memcmp(mac->bssid, ap4_2, 3) == 0) ||
2493 		(memcmp(mac->bssid, ap4_3, 3) == 0) ||
2494 		vendor == PEER_RAL) {
2495 		RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ral find\n");
2496 		vendor = PEER_RAL;
2497 	} else if (memcmp(mac->bssid, ap6_1, 3) == 0 ||
2498 		vendor == PEER_CISCO) {
2499 		vendor = PEER_CISCO;
2500 		RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>cisco find\n");
2501 	} else if ((memcmp(mac->bssid, ap3_1, 3) == 0) ||
2502 		(memcmp(mac->bssid, ap3_2, 3) == 0) ||
2503 		(memcmp(mac->bssid, ap3_3, 3) == 0) ||
2504 		vendor == PEER_BROAD) {
2505 		RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>broad find\n");
2506 		vendor = PEER_BROAD;
2507 	} else if (memcmp(mac->bssid, ap7_1, 3) == 0 ||
2508 		vendor == PEER_MARV) {
2509 		vendor = PEER_MARV;
2510 		RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>marv find\n");
2511 	}
2512 
2513 	mac->vendor = vendor;
2514 }
2515 EXPORT_SYMBOL_GPL(rtl_recognize_peer);
2516 
2517 MODULE_AUTHOR("lizhaoming	<chaoming_li@realsil.com.cn>");
2518 MODULE_AUTHOR("Realtek WlanFAE	<wlanfae@realtek.com>");
2519 MODULE_AUTHOR("Larry Finger	<Larry.FInger@lwfinger.net>");
2520 MODULE_LICENSE("GPL");
2521 MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");
2522 
2523 struct rtl_global_var rtl_global_var = {};
2524 EXPORT_SYMBOL_GPL(rtl_global_var);
2525 
2526 static int __init rtl_core_module_init(void)
2527 {
2528 	if (rtl_rate_control_register())
2529 		pr_err("rtl: Unable to register rtl_rc, use default RC !!\n");
2530 
2531 	/* init some global vars */
2532 	INIT_LIST_HEAD(&rtl_global_var.glb_priv_list);
2533 	spin_lock_init(&rtl_global_var.glb_list_lock);
2534 
2535 	return 0;
2536 }
2537 
2538 static void __exit rtl_core_module_exit(void)
2539 {
2540 	/*RC*/
2541 	rtl_rate_control_unregister();
2542 }
2543 
2544 module_init(rtl_core_module_init);
2545 module_exit(rtl_core_module_exit);
2546