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 		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[NL80211_BAND_2GHZ]);
332 
333 		/* <2> set hw->wiphy->bands[NL80211_BAND_2GHZ]
334 		 * to default value(1T1R) */
335 		memcpy(&(rtlmac->bands[NL80211_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[NL80211_BAND_2GHZ] = sband;
343 
344 		/* 2: 5 G bands */
345 		/* <1> use  mac->bands as mem for hw->wiphy->bands */
346 		sband = &(rtlmac->bands[NL80211_BAND_5GHZ]);
347 
348 		/* <2> set hw->wiphy->bands[NL80211_BAND_5GHZ]
349 		 * to default value(1T1R) */
350 		memcpy(&(rtlmac->bands[NL80211_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[NL80211_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[NL80211_BAND_2GHZ]);
363 
364 			/* <2> set hw->wiphy->bands[NL80211_BAND_2GHZ]
365 			 * to default value(1T1R) */
366 			memcpy(&(rtlmac->bands[NL80211_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[NL80211_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[NL80211_BAND_5GHZ]);
378 
379 			/* <2> set hw->wiphy->bands[NL80211_BAND_5GHZ]
380 			 * to default value(1T1R) */
381 			memcpy(&(rtlmac->bands[NL80211_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[NL80211_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 == NL80211_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 == NL80211_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 (NL80211_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_leave(hw);
1664 		else
1665 			rtl_lps_enter(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);
2177