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1 /******************************************************************************
2  *
3  * Copyright(c) 2009-2012  Realtek Corporation.
4  *
5  * This program is free software; you can redistribute it and/or modify it
6  * under the terms of version 2 of the GNU General Public License as
7  * published by the Free Software Foundation.
8  *
9  * This program is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
12  * more details.
13  *
14  * The full GNU General Public License is included in this distribution in the
15  * file called LICENSE.
16  *
17  * Contact Information:
18  * wlanfae <wlanfae@realtek.com>
19  * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
20  * Hsinchu 300, Taiwan.
21  *
22  * Larry Finger <Larry.Finger@lwfinger.net>
23  *
24  *****************************************************************************/
25 
26 #include "wifi.h"
27 #include "rc.h"
28 #include "base.h"
29 #include "efuse.h"
30 #include "cam.h"
31 #include "ps.h"
32 #include "regd.h"
33 #include "pci.h"
34 #include <linux/ip.h>
35 #include <linux/module.h>
36 #include <linux/udp.h>
37 
38 /*
39  *NOTICE!!!: This file will be very big, we should
40  *keep it clear under following roles:
41  *
42  *This file include following parts, so, if you add new
43  *functions into this file, please check which part it
44  *should includes. or check if you should add new part
45  *for this file:
46  *
47  *1) mac80211 init functions
48  *2) tx information functions
49  *3) functions called by core.c
50  *4) wq & timer callback functions
51  *5) frame process functions
52  *6) IOT functions
53  *7) sysfs functions
54  *8) vif functions
55  *9) ...
56  */
57 
58 /*********************************************************
59  *
60  * mac80211 init functions
61  *
62  *********************************************************/
63 static struct ieee80211_channel rtl_channeltable_2g[] = {
64 	{.center_freq = 2412, .hw_value = 1,},
65 	{.center_freq = 2417, .hw_value = 2,},
66 	{.center_freq = 2422, .hw_value = 3,},
67 	{.center_freq = 2427, .hw_value = 4,},
68 	{.center_freq = 2432, .hw_value = 5,},
69 	{.center_freq = 2437, .hw_value = 6,},
70 	{.center_freq = 2442, .hw_value = 7,},
71 	{.center_freq = 2447, .hw_value = 8,},
72 	{.center_freq = 2452, .hw_value = 9,},
73 	{.center_freq = 2457, .hw_value = 10,},
74 	{.center_freq = 2462, .hw_value = 11,},
75 	{.center_freq = 2467, .hw_value = 12,},
76 	{.center_freq = 2472, .hw_value = 13,},
77 	{.center_freq = 2484, .hw_value = 14,},
78 };
79 
80 static struct ieee80211_channel rtl_channeltable_5g[] = {
81 	{.center_freq = 5180, .hw_value = 36,},
82 	{.center_freq = 5200, .hw_value = 40,},
83 	{.center_freq = 5220, .hw_value = 44,},
84 	{.center_freq = 5240, .hw_value = 48,},
85 	{.center_freq = 5260, .hw_value = 52,},
86 	{.center_freq = 5280, .hw_value = 56,},
87 	{.center_freq = 5300, .hw_value = 60,},
88 	{.center_freq = 5320, .hw_value = 64,},
89 	{.center_freq = 5500, .hw_value = 100,},
90 	{.center_freq = 5520, .hw_value = 104,},
91 	{.center_freq = 5540, .hw_value = 108,},
92 	{.center_freq = 5560, .hw_value = 112,},
93 	{.center_freq = 5580, .hw_value = 116,},
94 	{.center_freq = 5600, .hw_value = 120,},
95 	{.center_freq = 5620, .hw_value = 124,},
96 	{.center_freq = 5640, .hw_value = 128,},
97 	{.center_freq = 5660, .hw_value = 132,},
98 	{.center_freq = 5680, .hw_value = 136,},
99 	{.center_freq = 5700, .hw_value = 140,},
100 	{.center_freq = 5745, .hw_value = 149,},
101 	{.center_freq = 5765, .hw_value = 153,},
102 	{.center_freq = 5785, .hw_value = 157,},
103 	{.center_freq = 5805, .hw_value = 161,},
104 	{.center_freq = 5825, .hw_value = 165,},
105 };
106 
107 static struct ieee80211_rate rtl_ratetable_2g[] = {
108 	{.bitrate = 10, .hw_value = 0x00,},
109 	{.bitrate = 20, .hw_value = 0x01,},
110 	{.bitrate = 55, .hw_value = 0x02,},
111 	{.bitrate = 110, .hw_value = 0x03,},
112 	{.bitrate = 60, .hw_value = 0x04,},
113 	{.bitrate = 90, .hw_value = 0x05,},
114 	{.bitrate = 120, .hw_value = 0x06,},
115 	{.bitrate = 180, .hw_value = 0x07,},
116 	{.bitrate = 240, .hw_value = 0x08,},
117 	{.bitrate = 360, .hw_value = 0x09,},
118 	{.bitrate = 480, .hw_value = 0x0a,},
119 	{.bitrate = 540, .hw_value = 0x0b,},
120 };
121 
122 static struct ieee80211_rate rtl_ratetable_5g[] = {
123 	{.bitrate = 60, .hw_value = 0x04,},
124 	{.bitrate = 90, .hw_value = 0x05,},
125 	{.bitrate = 120, .hw_value = 0x06,},
126 	{.bitrate = 180, .hw_value = 0x07,},
127 	{.bitrate = 240, .hw_value = 0x08,},
128 	{.bitrate = 360, .hw_value = 0x09,},
129 	{.bitrate = 480, .hw_value = 0x0a,},
130 	{.bitrate = 540, .hw_value = 0x0b,},
131 };
132 
133 static const struct ieee80211_supported_band rtl_band_2ghz = {
134 	.band = IEEE80211_BAND_2GHZ,
135 
136 	.channels = rtl_channeltable_2g,
137 	.n_channels = ARRAY_SIZE(rtl_channeltable_2g),
138 
139 	.bitrates = rtl_ratetable_2g,
140 	.n_bitrates = ARRAY_SIZE(rtl_ratetable_2g),
141 
142 	.ht_cap = {0},
143 };
144 
145 static struct ieee80211_supported_band rtl_band_5ghz = {
146 	.band = IEEE80211_BAND_5GHZ,
147 
148 	.channels = rtl_channeltable_5g,
149 	.n_channels = ARRAY_SIZE(rtl_channeltable_5g),
150 
151 	.bitrates = rtl_ratetable_5g,
152 	.n_bitrates = ARRAY_SIZE(rtl_ratetable_5g),
153 
154 	.ht_cap = {0},
155 };
156 
157 static const u8 tid_to_ac[] = {
158 	2, /* IEEE80211_AC_BE */
159 	3, /* IEEE80211_AC_BK */
160 	3, /* IEEE80211_AC_BK */
161 	2, /* IEEE80211_AC_BE */
162 	1, /* IEEE80211_AC_VI */
163 	1, /* IEEE80211_AC_VI */
164 	0, /* IEEE80211_AC_VO */
165 	0, /* IEEE80211_AC_VO */
166 };
167 
rtl_tid_to_ac(u8 tid)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 
_rtl_init_hw_ht_capab(struct ieee80211_hw * hw,struct ieee80211_sta_ht_cap * ht_cap)174 static void _rtl_init_hw_ht_capab(struct ieee80211_hw *hw,
175 				  struct ieee80211_sta_ht_cap *ht_cap)
176 {
177 	struct rtl_priv *rtlpriv = rtl_priv(hw);
178 	struct rtl_phy *rtlphy = &(rtlpriv->phy);
179 
180 	ht_cap->ht_supported = true;
181 	ht_cap->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
182 	    IEEE80211_HT_CAP_SGI_40 |
183 	    IEEE80211_HT_CAP_SGI_20 |
184 	    IEEE80211_HT_CAP_DSSSCCK40 | IEEE80211_HT_CAP_MAX_AMSDU;
185 
186 	if (rtlpriv->rtlhal.disable_amsdu_8k)
187 		ht_cap->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
188 
189 	/*
190 	 *Maximum length of AMPDU that the STA can receive.
191 	 *Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
192 	 */
193 	ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
194 
195 	/*Minimum MPDU start spacing , */
196 	ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
197 
198 	ht_cap->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
199 
200 	/*hw->wiphy->bands[IEEE80211_BAND_2GHZ]
201 	 *base on ant_num
202 	 *rx_mask: RX mask
203 	 *if rx_ant = 1 rx_mask[0]= 0xff;==>MCS0-MCS7
204 	 *if rx_ant = 2 rx_mask[1]= 0xff;==>MCS8-MCS15
205 	 *if rx_ant >= 3 rx_mask[2]= 0xff;
206 	 *if BW_40 rx_mask[4]= 0x01;
207 	 *highest supported RX rate
208 	 */
209 	if (rtlpriv->dm.supp_phymode_switch) {
210 		RT_TRACE(rtlpriv, COMP_INIT, DBG_EMERG,
211 			 "Support phy mode switch\n");
212 
213 		ht_cap->mcs.rx_mask[0] = 0xFF;
214 		ht_cap->mcs.rx_mask[1] = 0xFF;
215 		ht_cap->mcs.rx_mask[4] = 0x01;
216 
217 		ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
218 	} else {
219 		if (get_rf_type(rtlphy) == RF_1T2R ||
220 		    get_rf_type(rtlphy) == RF_2T2R) {
221 			RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
222 				 "1T2R or 2T2R\n");
223 			ht_cap->mcs.rx_mask[0] = 0xFF;
224 			ht_cap->mcs.rx_mask[1] = 0xFF;
225 			ht_cap->mcs.rx_mask[4] = 0x01;
226 
227 			ht_cap->mcs.rx_highest =
228 				 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
229 		} else if (get_rf_type(rtlphy) == RF_1T1R) {
230 			RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "1T1R\n");
231 
232 			ht_cap->mcs.rx_mask[0] = 0xFF;
233 			ht_cap->mcs.rx_mask[1] = 0x00;
234 			ht_cap->mcs.rx_mask[4] = 0x01;
235 
236 			ht_cap->mcs.rx_highest =
237 				 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS7);
238 		}
239 	}
240 }
241 
_rtl_init_hw_vht_capab(struct ieee80211_hw * hw,struct ieee80211_sta_vht_cap * vht_cap)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 
_rtl_init_mac80211(struct ieee80211_hw * hw)319 static void _rtl_init_mac80211(struct ieee80211_hw *hw)
320 {
321 	struct rtl_priv *rtlpriv = rtl_priv(hw);
322 	struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
323 	struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
324 	struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
325 	struct ieee80211_supported_band *sband;
326 
327 	if (rtlhal->macphymode == SINGLEMAC_SINGLEPHY &&
328 	    rtlhal->bandset == BAND_ON_BOTH) {
329 		/* 1: 2.4 G bands */
330 		/* <1> use  mac->bands as mem for hw->wiphy->bands */
331 		sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]);
332 
333 		/* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ]
334 		 * to default value(1T1R) */
335 		memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]), &rtl_band_2ghz,
336 				sizeof(struct ieee80211_supported_band));
337 
338 		/* <3> init ht cap base on ant_num */
339 		_rtl_init_hw_ht_capab(hw, &sband->ht_cap);
340 
341 		/* <4> set mac->sband to wiphy->sband */
342 		hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
343 
344 		/* 2: 5 G bands */
345 		/* <1> use  mac->bands as mem for hw->wiphy->bands */
346 		sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]);
347 
348 		/* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ]
349 		 * to default value(1T1R) */
350 		memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]), &rtl_band_5ghz,
351 				sizeof(struct ieee80211_supported_band));
352 
353 		/* <3> init ht cap base on ant_num */
354 		_rtl_init_hw_ht_capab(hw, &sband->ht_cap);
355 
356 		_rtl_init_hw_vht_capab(hw, &sband->vht_cap);
357 		/* <4> set mac->sband to wiphy->sband */
358 		hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
359 	} else {
360 		if (rtlhal->current_bandtype == BAND_ON_2_4G) {
361 			/* <1> use  mac->bands as mem for hw->wiphy->bands */
362 			sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]);
363 
364 			/* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ]
365 			 * to default value(1T1R) */
366 			memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]),
367 			       &rtl_band_2ghz,
368 			       sizeof(struct ieee80211_supported_band));
369 
370 			/* <3> init ht cap base on ant_num */
371 			_rtl_init_hw_ht_capab(hw, &sband->ht_cap);
372 
373 			/* <4> set mac->sband to wiphy->sband */
374 			hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
375 		} else if (rtlhal->current_bandtype == BAND_ON_5G) {
376 			/* <1> use  mac->bands as mem for hw->wiphy->bands */
377 			sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]);
378 
379 			/* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ]
380 			 * to default value(1T1R) */
381 			memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]),
382 			       &rtl_band_5ghz,
383 			       sizeof(struct ieee80211_supported_band));
384 
385 			/* <3> init ht cap base on ant_num */
386 			_rtl_init_hw_ht_capab(hw, &sband->ht_cap);
387 
388 			_rtl_init_hw_vht_capab(hw, &sband->vht_cap);
389 			/* <4> set mac->sband to wiphy->sband */
390 			hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
391 		} else {
392 			RT_TRACE(rtlpriv, COMP_INIT, DBG_EMERG, "Err BAND %d\n",
393 				 rtlhal->current_bandtype);
394 		}
395 	}
396 	/* <5> set hw caps */
397 	hw->flags = IEEE80211_HW_SIGNAL_DBM |
398 	    IEEE80211_HW_RX_INCLUDES_FCS |
399 	    IEEE80211_HW_AMPDU_AGGREGATION |
400 	    IEEE80211_HW_CONNECTION_MONITOR |
401 	    /* IEEE80211_HW_SUPPORTS_CQM_RSSI | */
402 	    IEEE80211_HW_MFP_CAPABLE |
403 	    IEEE80211_HW_REPORTS_TX_ACK_STATUS | 0;
404 
405 	/* swlps or hwlps has been set in diff chip in init_sw_vars */
406 	if (rtlpriv->psc.swctrl_lps)
407 		hw->flags |= IEEE80211_HW_SUPPORTS_PS |
408 			IEEE80211_HW_PS_NULLFUNC_STACK |
409 			/* IEEE80211_HW_SUPPORTS_DYNAMIC_PS | */
410 			0;
411 	hw->wiphy->interface_modes =
412 	    BIT(NL80211_IFTYPE_AP) |
413 	    BIT(NL80211_IFTYPE_STATION) |
414 	    BIT(NL80211_IFTYPE_ADHOC) |
415 	    BIT(NL80211_IFTYPE_MESH_POINT) |
416 	    BIT(NL80211_IFTYPE_P2P_CLIENT) |
417 	    BIT(NL80211_IFTYPE_P2P_GO);
418 	hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
419 
420 	hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
421 
422 	hw->wiphy->rts_threshold = 2347;
423 
424 	hw->queues = AC_MAX;
425 	hw->extra_tx_headroom = RTL_TX_HEADER_SIZE;
426 
427 	/* TODO: Correct this value for our hw */
428 	/* TODO: define these hard code value */
429 	hw->max_listen_interval = 10;
430 	hw->max_rate_tries = 4;
431 	/* hw->max_rates = 1; */
432 	hw->sta_data_size = sizeof(struct rtl_sta_info);
433 
434 /* wowlan is not supported by kernel if CONFIG_PM is not defined */
435 #ifdef CONFIG_PM
436 	if (rtlpriv->psc.wo_wlan_mode) {
437 		if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_MAGIC_PACKET)
438 			rtlpriv->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT;
439 		if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_PATTERN_MATCH) {
440 			rtlpriv->wowlan.n_patterns =
441 				MAX_SUPPORT_WOL_PATTERN_NUM;
442 			rtlpriv->wowlan.pattern_min_len = MIN_WOL_PATTERN_SIZE;
443 			rtlpriv->wowlan.pattern_max_len = MAX_WOL_PATTERN_SIZE;
444 		}
445 		hw->wiphy->wowlan = &rtlpriv->wowlan;
446 	}
447 #endif
448 
449 	/* <6> mac address */
450 	if (is_valid_ether_addr(rtlefuse->dev_addr)) {
451 		SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr);
452 	} else {
453 		u8 rtlmac1[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 };
454 		get_random_bytes((rtlmac1 + (ETH_ALEN - 1)), 1);
455 		SET_IEEE80211_PERM_ADDR(hw, rtlmac1);
456 	}
457 }
458 
_rtl_init_deferred_work(struct ieee80211_hw * hw)459 static void _rtl_init_deferred_work(struct ieee80211_hw *hw)
460 {
461 	struct rtl_priv *rtlpriv = rtl_priv(hw);
462 
463 	/* <1> timer */
464 	setup_timer(&rtlpriv->works.watchdog_timer,
465 		    rtl_watch_dog_timer_callback, (unsigned long)hw);
466 	setup_timer(&rtlpriv->works.dualmac_easyconcurrent_retrytimer,
467 		    rtl_easy_concurrent_retrytimer_callback, (unsigned long)hw);
468 	/* <2> work queue */
469 	rtlpriv->works.hw = hw;
470 	rtlpriv->works.rtl_wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name);
471 	INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
472 			  (void *)rtl_watchdog_wq_callback);
473 	INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,
474 			  (void *)rtl_ips_nic_off_wq_callback);
475 	INIT_DELAYED_WORK(&rtlpriv->works.ps_work,
476 			  (void *)rtl_swlps_wq_callback);
477 	INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq,
478 			  (void *)rtl_swlps_rfon_wq_callback);
479 	INIT_DELAYED_WORK(&rtlpriv->works.fwevt_wq,
480 			  (void *)rtl_fwevt_wq_callback);
481 
482 }
483 
rtl_deinit_deferred_work(struct ieee80211_hw * hw)484 void rtl_deinit_deferred_work(struct ieee80211_hw *hw)
485 {
486 	struct rtl_priv *rtlpriv = rtl_priv(hw);
487 
488 	del_timer_sync(&rtlpriv->works.watchdog_timer);
489 
490 	cancel_delayed_work(&rtlpriv->works.watchdog_wq);
491 	cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq);
492 	cancel_delayed_work(&rtlpriv->works.ps_work);
493 	cancel_delayed_work(&rtlpriv->works.ps_rfon_wq);
494 	cancel_delayed_work(&rtlpriv->works.fwevt_wq);
495 }
496 EXPORT_SYMBOL_GPL(rtl_deinit_deferred_work);
497 
rtl_init_rfkill(struct ieee80211_hw * hw)498 void rtl_init_rfkill(struct ieee80211_hw *hw)
499 {
500 	struct rtl_priv *rtlpriv = rtl_priv(hw);
501 
502 	bool radio_state;
503 	bool blocked;
504 	u8 valid = 0;
505 
506 	/*set init state to on */
507 	rtlpriv->rfkill.rfkill_state = true;
508 	wiphy_rfkill_set_hw_state(hw->wiphy, 0);
509 
510 	radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
511 
512 	if (valid) {
513 		pr_info("rtlwifi: wireless switch is %s\n",
514 			rtlpriv->rfkill.rfkill_state ? "on" : "off");
515 
516 		rtlpriv->rfkill.rfkill_state = radio_state;
517 
518 		blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1;
519 		wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
520 	}
521 
522 	wiphy_rfkill_start_polling(hw->wiphy);
523 }
524 EXPORT_SYMBOL(rtl_init_rfkill);
525 
rtl_deinit_rfkill(struct ieee80211_hw * hw)526 void rtl_deinit_rfkill(struct ieee80211_hw *hw)
527 {
528 	wiphy_rfkill_stop_polling(hw->wiphy);
529 }
530 EXPORT_SYMBOL_GPL(rtl_deinit_rfkill);
531 
rtl_init_core(struct ieee80211_hw * hw)532 int rtl_init_core(struct ieee80211_hw *hw)
533 {
534 	struct rtl_priv *rtlpriv = rtl_priv(hw);
535 	struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
536 
537 	/* <1> init mac80211 */
538 	_rtl_init_mac80211(hw);
539 	rtlmac->hw = hw;
540 
541 	/* <2> rate control register */
542 	hw->rate_control_algorithm = "rtl_rc";
543 
544 	/*
545 	 * <3> init CRDA must come after init
546 	 * mac80211 hw  in _rtl_init_mac80211.
547 	 */
548 	if (rtl_regd_init(hw, rtl_reg_notifier)) {
549 		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "REGD init failed\n");
550 		return 1;
551 	}
552 
553 	/* <4> locks */
554 	mutex_init(&rtlpriv->locks.conf_mutex);
555 	spin_lock_init(&rtlpriv->locks.ips_lock);
556 	spin_lock_init(&rtlpriv->locks.irq_th_lock);
557 	spin_lock_init(&rtlpriv->locks.h2c_lock);
558 	spin_lock_init(&rtlpriv->locks.rf_ps_lock);
559 	spin_lock_init(&rtlpriv->locks.rf_lock);
560 	spin_lock_init(&rtlpriv->locks.waitq_lock);
561 	spin_lock_init(&rtlpriv->locks.entry_list_lock);
562 	spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock);
563 	spin_lock_init(&rtlpriv->locks.check_sendpkt_lock);
564 	spin_lock_init(&rtlpriv->locks.fw_ps_lock);
565 	spin_lock_init(&rtlpriv->locks.lps_lock);
566 	spin_lock_init(&rtlpriv->locks.iqk_lock);
567 	/* <5> init list */
568 	INIT_LIST_HEAD(&rtlpriv->entry_list);
569 
570 	rtlmac->link_state = MAC80211_NOLINK;
571 
572 	/* <6> init deferred work */
573 	_rtl_init_deferred_work(hw);
574 
575 	return 0;
576 }
577 EXPORT_SYMBOL_GPL(rtl_init_core);
578 
rtl_deinit_core(struct ieee80211_hw * hw)579 void rtl_deinit_core(struct ieee80211_hw *hw)
580 {
581 }
582 EXPORT_SYMBOL_GPL(rtl_deinit_core);
583 
rtl_init_rx_config(struct ieee80211_hw * hw)584 void rtl_init_rx_config(struct ieee80211_hw *hw)
585 {
586 	struct rtl_priv *rtlpriv = rtl_priv(hw);
587 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
588 
589 	rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf));
590 }
591 EXPORT_SYMBOL_GPL(rtl_init_rx_config);
592 
593 /*********************************************************
594  *
595  * tx information functions
596  *
597  *********************************************************/
_rtl_qurey_shortpreamble_mode(struct ieee80211_hw * hw,struct rtl_tcb_desc * tcb_desc,struct ieee80211_tx_info * info)598 static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw,
599 					  struct rtl_tcb_desc *tcb_desc,
600 					  struct ieee80211_tx_info *info)
601 {
602 	struct rtl_priv *rtlpriv = rtl_priv(hw);
603 	u8 rate_flag = info->control.rates[0].flags;
604 
605 	tcb_desc->use_shortpreamble = false;
606 
607 	/* 1M can only use Long Preamble. 11B spec */
608 	if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M])
609 		return;
610 	else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
611 		tcb_desc->use_shortpreamble = true;
612 
613 	return;
614 }
615 
_rtl_query_shortgi(struct ieee80211_hw * hw,struct ieee80211_sta * sta,struct rtl_tcb_desc * tcb_desc,struct ieee80211_tx_info * info)616 static void _rtl_query_shortgi(struct ieee80211_hw *hw,
617 			       struct ieee80211_sta *sta,
618 			       struct rtl_tcb_desc *tcb_desc,
619 			       struct ieee80211_tx_info *info)
620 {
621 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
622 	u8 rate_flag = info->control.rates[0].flags;
623 	u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0;
624 	u8 sgi_80 = 0, bw_80 = 0;
625 	tcb_desc->use_shortgi = false;
626 
627 	if (sta == NULL)
628 		return;
629 
630 	sgi_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40;
631 	sgi_20 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20;
632 	sgi_80 = sta->vht_cap.cap & IEEE80211_VHT_CAP_SHORT_GI_80;
633 
634 	if ((!sta->ht_cap.ht_supported) && (!sta->vht_cap.vht_supported))
635 		return;
636 
637 	if (!sgi_40 && !sgi_20)
638 		return;
639 
640 	if (mac->opmode == NL80211_IFTYPE_STATION) {
641 		bw_40 = mac->bw_40;
642 		bw_80 = mac->bw_80;
643 	} else if (mac->opmode == NL80211_IFTYPE_AP ||
644 		 mac->opmode == NL80211_IFTYPE_ADHOC ||
645 		 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
646 		bw_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40;
647 		bw_80 = sta->vht_cap.vht_supported;
648 	}
649 
650 	if (bw_80) {
651 		if (sgi_80)
652 			tcb_desc->use_shortgi = true;
653 		else
654 			tcb_desc->use_shortgi = false;
655 	} else {
656 		if (bw_40 && sgi_40)
657 			tcb_desc->use_shortgi = true;
658 		else if (!bw_40 && sgi_20)
659 			tcb_desc->use_shortgi = true;
660 	}
661 
662 	if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI))
663 		tcb_desc->use_shortgi = false;
664 }
665 
_rtl_query_protection_mode(struct ieee80211_hw * hw,struct rtl_tcb_desc * tcb_desc,struct ieee80211_tx_info * info)666 static void _rtl_query_protection_mode(struct ieee80211_hw *hw,
667 				       struct rtl_tcb_desc *tcb_desc,
668 				       struct ieee80211_tx_info *info)
669 {
670 	struct rtl_priv *rtlpriv = rtl_priv(hw);
671 	u8 rate_flag = info->control.rates[0].flags;
672 
673 	/* Common Settings */
674 	tcb_desc->rts_stbc = false;
675 	tcb_desc->cts_enable = false;
676 	tcb_desc->rts_sc = 0;
677 	tcb_desc->rts_bw = false;
678 	tcb_desc->rts_use_shortpreamble = false;
679 	tcb_desc->rts_use_shortgi = false;
680 
681 	if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) {
682 		/* Use CTS-to-SELF in protection mode. */
683 		tcb_desc->rts_enable = true;
684 		tcb_desc->cts_enable = true;
685 		tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
686 	} else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) {
687 		/* Use RTS-CTS in protection mode. */
688 		tcb_desc->rts_enable = true;
689 		tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
690 	}
691 }
692 
_rtl_txrate_selectmode(struct ieee80211_hw * hw,struct ieee80211_sta * sta,struct rtl_tcb_desc * tcb_desc)693 static void _rtl_txrate_selectmode(struct ieee80211_hw *hw,
694 				   struct ieee80211_sta *sta,
695 				   struct rtl_tcb_desc *tcb_desc)
696 {
697 	struct rtl_priv *rtlpriv = rtl_priv(hw);
698 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
699 	struct rtl_sta_info *sta_entry = NULL;
700 	u8 ratr_index = 7;
701 
702 	if (sta) {
703 		sta_entry = (struct rtl_sta_info *) sta->drv_priv;
704 		ratr_index = sta_entry->ratr_index;
705 	}
706 	if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) {
707 		if (mac->opmode == NL80211_IFTYPE_STATION) {
708 			tcb_desc->ratr_index = 0;
709 		} else if (mac->opmode == NL80211_IFTYPE_ADHOC ||
710 				mac->opmode == NL80211_IFTYPE_MESH_POINT) {
711 			if (tcb_desc->multicast || tcb_desc->broadcast) {
712 				tcb_desc->hw_rate =
713 				    rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M];
714 				tcb_desc->use_driver_rate = 1;
715 				tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
716 			} else {
717 				tcb_desc->ratr_index = ratr_index;
718 			}
719 		} else if (mac->opmode == NL80211_IFTYPE_AP) {
720 			tcb_desc->ratr_index = ratr_index;
721 		}
722 	}
723 
724 	if (rtlpriv->dm.useramask) {
725 		tcb_desc->ratr_index = ratr_index;
726 		/* TODO we will differentiate adhoc and station future  */
727 		if (mac->opmode == NL80211_IFTYPE_STATION ||
728 		    mac->opmode == NL80211_IFTYPE_MESH_POINT) {
729 			tcb_desc->mac_id = 0;
730 
731 			if (mac->mode == WIRELESS_MODE_AC_5G)
732 				tcb_desc->ratr_index =
733 					RATR_INX_WIRELESS_AC_5N;
734 			else if (mac->mode == WIRELESS_MODE_AC_24G)
735 				tcb_desc->ratr_index =
736 					RATR_INX_WIRELESS_AC_24N;
737 			else if (mac->mode == WIRELESS_MODE_N_24G)
738 				tcb_desc->ratr_index = RATR_INX_WIRELESS_NGB;
739 			else if (mac->mode == WIRELESS_MODE_N_5G)
740 				tcb_desc->ratr_index = RATR_INX_WIRELESS_NG;
741 			else if (mac->mode & WIRELESS_MODE_G)
742 				tcb_desc->ratr_index = RATR_INX_WIRELESS_GB;
743 			else if (mac->mode & WIRELESS_MODE_B)
744 				tcb_desc->ratr_index = RATR_INX_WIRELESS_B;
745 			else if (mac->mode & WIRELESS_MODE_A)
746 				tcb_desc->ratr_index = RATR_INX_WIRELESS_G;
747 
748 		} else if (mac->opmode == NL80211_IFTYPE_AP ||
749 			mac->opmode == NL80211_IFTYPE_ADHOC) {
750 			if (NULL != sta) {
751 				if (sta->aid > 0)
752 					tcb_desc->mac_id = sta->aid + 1;
753 				else
754 					tcb_desc->mac_id = 1;
755 			} else {
756 				tcb_desc->mac_id = 0;
757 			}
758 		}
759 	}
760 }
761 
_rtl_query_bandwidth_mode(struct ieee80211_hw * hw,struct ieee80211_sta * sta,struct rtl_tcb_desc * tcb_desc)762 static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw,
763 				      struct ieee80211_sta *sta,
764 				      struct rtl_tcb_desc *tcb_desc)
765 {
766 	struct rtl_priv *rtlpriv = rtl_priv(hw);
767 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
768 
769 	tcb_desc->packet_bw = false;
770 	if (!sta)
771 		return;
772 	if (mac->opmode == NL80211_IFTYPE_AP ||
773 	    mac->opmode == NL80211_IFTYPE_ADHOC ||
774 	    mac->opmode == NL80211_IFTYPE_MESH_POINT) {
775 		if (!(sta->ht_cap.ht_supported) ||
776 		    !(sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))
777 			return;
778 	} else if (mac->opmode == NL80211_IFTYPE_STATION) {
779 		if (!mac->bw_40 || !(sta->ht_cap.ht_supported))
780 			return;
781 	}
782 	if (tcb_desc->multicast || tcb_desc->broadcast)
783 		return;
784 
785 	/*use legency rate, shall use 20MHz */
786 	if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M])
787 		return;
788 
789 	tcb_desc->packet_bw = HT_CHANNEL_WIDTH_20_40;
790 
791 	if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8812AE ||
792 	    rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8821AE) {
793 		if (mac->opmode == NL80211_IFTYPE_AP ||
794 		    mac->opmode == NL80211_IFTYPE_ADHOC ||
795 		    mac->opmode == NL80211_IFTYPE_MESH_POINT) {
796 			if (!(sta->vht_cap.vht_supported))
797 				return;
798 		} else if (mac->opmode == NL80211_IFTYPE_STATION) {
799 			if (!mac->bw_80 ||
800 			    !(sta->vht_cap.vht_supported))
801 				return;
802 		}
803 		if (tcb_desc->hw_rate <=
804 			rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15])
805 			return;
806 		tcb_desc->packet_bw = HT_CHANNEL_WIDTH_80;
807 	}
808 }
809 
_rtl_get_vht_highest_n_rate(struct ieee80211_hw * hw,struct ieee80211_sta * sta)810 static u8 _rtl_get_vht_highest_n_rate(struct ieee80211_hw *hw,
811 				      struct ieee80211_sta *sta)
812 {
813 	struct rtl_priv *rtlpriv = rtl_priv(hw);
814 	struct rtl_phy *rtlphy = &(rtlpriv->phy);
815 	u8 hw_rate;
816 	u16 tx_mcs_map = le16_to_cpu(sta->vht_cap.vht_mcs.tx_mcs_map);
817 
818 	if ((get_rf_type(rtlphy) == RF_2T2R) &&
819 	    (tx_mcs_map & 0x000c) != 0x000c) {
820 		if ((tx_mcs_map & 0x000c) >> 2 ==
821 			IEEE80211_VHT_MCS_SUPPORT_0_7)
822 			hw_rate =
823 			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS7];
824 		else if ((tx_mcs_map  & 0x000c) >> 2 ==
825 			IEEE80211_VHT_MCS_SUPPORT_0_8)
826 			hw_rate =
827 			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
828 		else
829 			hw_rate =
830 			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
831 	} else {
832 		if ((tx_mcs_map  & 0x0003) ==
833 			IEEE80211_VHT_MCS_SUPPORT_0_7)
834 			hw_rate =
835 			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS7];
836 		else if ((tx_mcs_map  & 0x0003) ==
837 			IEEE80211_VHT_MCS_SUPPORT_0_8)
838 			hw_rate =
839 			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
840 		else
841 			hw_rate =
842 			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
843 	}
844 
845 	return hw_rate;
846 }
847 
_rtl_get_highest_n_rate(struct ieee80211_hw * hw,struct ieee80211_sta * sta)848 static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw,
849 				  struct ieee80211_sta *sta)
850 {
851 	struct rtl_priv *rtlpriv = rtl_priv(hw);
852 	struct rtl_phy *rtlphy = &rtlpriv->phy;
853 	u8 hw_rate;
854 
855 	if ((get_rf_type(rtlphy) == RF_2T2R) &&
856 	    (sta->ht_cap.mcs.rx_mask[1] != 0))
857 		hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15];
858 	else
859 		hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7];
860 
861 	return hw_rate;
862 }
863 
864 /* mac80211's rate_idx is like this:
865  *
866  * 2.4G band:rx_status->band == IEEE80211_BAND_2GHZ
867  *
868  * B/G rate:
869  * (rx_status->flag & RX_FLAG_HT) = 0,
870  * DESC92_RATE1M-->DESC92_RATE54M ==> idx is 0-->11,
871  *
872  * N rate:
873  * (rx_status->flag & RX_FLAG_HT) = 1,
874  * DESC92_RATEMCS0-->DESC92_RATEMCS15 ==> idx is 0-->15
875  *
876  * 5G band:rx_status->band == IEEE80211_BAND_5GHZ
877  * A rate:
878  * (rx_status->flag & RX_FLAG_HT) = 0,
879  * DESC92_RATE6M-->DESC92_RATE54M ==> idx is 0-->7,
880  *
881  * N rate:
882  * (rx_status->flag & RX_FLAG_HT) = 1,
883  * DESC92_RATEMCS0-->DESC92_RATEMCS15 ==> idx is 0-->15
884  */
rtlwifi_rate_mapping(struct ieee80211_hw * hw,bool isht,u8 desc_rate,bool first_ampdu)885 int rtlwifi_rate_mapping(struct ieee80211_hw *hw,
886 			 bool isht, u8 desc_rate, bool first_ampdu)
887 {
888 	int rate_idx;
889 
890 	if (false == isht) {
891 		if (IEEE80211_BAND_2GHZ == hw->conf.chandef.chan->band) {
892 			switch (desc_rate) {
893 			case DESC92_RATE1M:
894 				rate_idx = 0;
895 				break;
896 			case DESC92_RATE2M:
897 				rate_idx = 1;
898 				break;
899 			case DESC92_RATE5_5M:
900 				rate_idx = 2;
901 				break;
902 			case DESC92_RATE11M:
903 				rate_idx = 3;
904 				break;
905 			case DESC92_RATE6M:
906 				rate_idx = 4;
907 				break;
908 			case DESC92_RATE9M:
909 				rate_idx = 5;
910 				break;
911 			case DESC92_RATE12M:
912 				rate_idx = 6;
913 				break;
914 			case DESC92_RATE18M:
915 				rate_idx = 7;
916 				break;
917 			case DESC92_RATE24M:
918 				rate_idx = 8;
919 				break;
920 			case DESC92_RATE36M:
921 				rate_idx = 9;
922 				break;
923 			case DESC92_RATE48M:
924 				rate_idx = 10;
925 				break;
926 			case DESC92_RATE54M:
927 				rate_idx = 11;
928 				break;
929 			default:
930 				rate_idx = 0;
931 				break;
932 			}
933 		} else {
934 			switch (desc_rate) {
935 			case DESC92_RATE6M:
936 				rate_idx = 0;
937 				break;
938 			case DESC92_RATE9M:
939 				rate_idx = 1;
940 				break;
941 			case DESC92_RATE12M:
942 				rate_idx = 2;
943 				break;
944 			case DESC92_RATE18M:
945 				rate_idx = 3;
946 				break;
947 			case DESC92_RATE24M:
948 				rate_idx = 4;
949 				break;
950 			case DESC92_RATE36M:
951 				rate_idx = 5;
952 				break;
953 			case DESC92_RATE48M:
954 				rate_idx = 6;
955 				break;
956 			case DESC92_RATE54M:
957 				rate_idx = 7;
958 				break;
959 			default:
960 				rate_idx = 0;
961 				break;
962 			}
963 		}
964 	} else {
965 		switch (desc_rate) {
966 		case DESC92_RATEMCS0:
967 			rate_idx = 0;
968 			break;
969 		case DESC92_RATEMCS1:
970 			rate_idx = 1;
971 			break;
972 		case DESC92_RATEMCS2:
973 			rate_idx = 2;
974 			break;
975 		case DESC92_RATEMCS3:
976 			rate_idx = 3;
977 			break;
978 		case DESC92_RATEMCS4:
979 			rate_idx = 4;
980 			break;
981 		case DESC92_RATEMCS5:
982 			rate_idx = 5;
983 			break;
984 		case DESC92_RATEMCS6:
985 			rate_idx = 6;
986 			break;
987 		case DESC92_RATEMCS7:
988 			rate_idx = 7;
989 			break;
990 		case DESC92_RATEMCS8:
991 			rate_idx = 8;
992 			break;
993 		case DESC92_RATEMCS9:
994 			rate_idx = 9;
995 			break;
996 		case DESC92_RATEMCS10:
997 			rate_idx = 10;
998 			break;
999 		case DESC92_RATEMCS11:
1000 			rate_idx = 11;
1001 			break;
1002 		case DESC92_RATEMCS12:
1003 			rate_idx = 12;
1004 			break;
1005 		case DESC92_RATEMCS13:
1006 			rate_idx = 13;
1007 			break;
1008 		case DESC92_RATEMCS14:
1009 			rate_idx = 14;
1010 			break;
1011 		case DESC92_RATEMCS15:
1012 			rate_idx = 15;
1013 			break;
1014 		default:
1015 			rate_idx = 0;
1016 			break;
1017 		}
1018 	}
1019 	return rate_idx;
1020 }
1021 EXPORT_SYMBOL(rtlwifi_rate_mapping);
1022 
rtl_get_tcb_desc(struct ieee80211_hw * hw,struct ieee80211_tx_info * info,struct ieee80211_sta * sta,struct sk_buff * skb,struct rtl_tcb_desc * tcb_desc)1023 void rtl_get_tcb_desc(struct ieee80211_hw *hw,
1024 		      struct ieee80211_tx_info *info,
1025 		      struct ieee80211_sta *sta,
1026 		      struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc)
1027 {
1028 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1029 	struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
1030 	struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1031 	struct ieee80211_rate *txrate;
1032 	__le16 fc = rtl_get_fc(skb);
1033 
1034 	txrate = ieee80211_get_tx_rate(hw, info);
1035 	if (txrate)
1036 		tcb_desc->hw_rate = txrate->hw_value;
1037 
1038 	if (ieee80211_is_data(fc)) {
1039 		/*
1040 		 *we set data rate INX 0
1041 		 *in rtl_rc.c   if skb is special data or
1042 		 *mgt which need low data rate.
1043 		 */
1044 
1045 		/*
1046 		 *So tcb_desc->hw_rate is just used for
1047 		 *special data and mgt frames
1048 		 */
1049 		if (info->control.rates[0].idx == 0 ||
1050 				ieee80211_is_nullfunc(fc)) {
1051 			tcb_desc->use_driver_rate = true;
1052 			tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
1053 
1054 			tcb_desc->disable_ratefallback = 1;
1055 		} else {
1056 			/*
1057 			 *because hw will nerver use hw_rate
1058 			 *when tcb_desc->use_driver_rate = false
1059 			 *so we never set highest N rate here,
1060 			 *and N rate will all be controlled by FW
1061 			 *when tcb_desc->use_driver_rate = false
1062 			 */
1063 			if (sta && sta->vht_cap.vht_supported) {
1064 				tcb_desc->hw_rate =
1065 				_rtl_get_vht_highest_n_rate(hw, sta);
1066 			} else {
1067 				if (sta && (sta->ht_cap.ht_supported)) {
1068 					tcb_desc->hw_rate =
1069 						_rtl_get_highest_n_rate(hw, sta);
1070 				} else {
1071 					if (rtlmac->mode == WIRELESS_MODE_B) {
1072 						tcb_desc->hw_rate =
1073 						    rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M];
1074 					} else {
1075 						tcb_desc->hw_rate =
1076 						    rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M];
1077 					}
1078 				}
1079 			}
1080 		}
1081 
1082 		if (is_multicast_ether_addr(ieee80211_get_DA(hdr)))
1083 			tcb_desc->multicast = 1;
1084 		else if (is_broadcast_ether_addr(ieee80211_get_DA(hdr)))
1085 			tcb_desc->broadcast = 1;
1086 
1087 		_rtl_txrate_selectmode(hw, sta, tcb_desc);
1088 		_rtl_query_bandwidth_mode(hw, sta, tcb_desc);
1089 		_rtl_qurey_shortpreamble_mode(hw, tcb_desc, info);
1090 		_rtl_query_shortgi(hw, sta, tcb_desc, info);
1091 		_rtl_query_protection_mode(hw, tcb_desc, info);
1092 	} else {
1093 		tcb_desc->use_driver_rate = true;
1094 		tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
1095 		tcb_desc->disable_ratefallback = 1;
1096 		tcb_desc->mac_id = 0;
1097 		tcb_desc->packet_bw = false;
1098 	}
1099 }
1100 EXPORT_SYMBOL(rtl_get_tcb_desc);
1101 
rtl_tx_mgmt_proc(struct ieee80211_hw * hw,struct sk_buff * skb)1102 bool rtl_tx_mgmt_proc(struct ieee80211_hw *hw, struct sk_buff *skb)
1103 {
1104 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1105 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1106 	__le16 fc = rtl_get_fc(skb);
1107 
1108 	if (rtlpriv->dm.supp_phymode_switch &&
1109 	    mac->link_state < MAC80211_LINKED &&
1110 	    (ieee80211_is_auth(fc) || ieee80211_is_probe_req(fc))) {
1111 		if (rtlpriv->cfg->ops->chk_switch_dmdp)
1112 			rtlpriv->cfg->ops->chk_switch_dmdp(hw);
1113 	}
1114 	if (ieee80211_is_auth(fc)) {
1115 		RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n");
1116 		rtl_ips_nic_on(hw);
1117 
1118 		mac->link_state = MAC80211_LINKING;
1119 		/* Dul mac */
1120 		rtlpriv->phy.need_iqk = true;
1121 
1122 	}
1123 
1124 	return true;
1125 }
1126 EXPORT_SYMBOL_GPL(rtl_tx_mgmt_proc);
1127 
1128 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw, u8 *sa,
1129 				u8 *bssid, u16 tid);
1130 
process_agg_start(struct ieee80211_hw * hw,struct ieee80211_hdr * hdr,u16 tid)1131 static void process_agg_start(struct ieee80211_hw *hw,
1132 			      struct ieee80211_hdr *hdr, u16 tid)
1133 {
1134 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1135 	struct ieee80211_rx_status rx_status = { 0 };
1136 	struct sk_buff *skb_delba = NULL;
1137 
1138 	skb_delba = rtl_make_del_ba(hw, hdr->addr2, hdr->addr3, tid);
1139 	if (skb_delba) {
1140 		rx_status.freq = hw->conf.chandef.chan->center_freq;
1141 		rx_status.band = hw->conf.chandef.chan->band;
1142 		rx_status.flag |= RX_FLAG_DECRYPTED;
1143 		rx_status.flag |= RX_FLAG_MACTIME_START;
1144 		rx_status.rate_idx = 0;
1145 		rx_status.signal = 50 + 10;
1146 		memcpy(IEEE80211_SKB_RXCB(skb_delba),
1147 		       &rx_status, sizeof(rx_status));
1148 		RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG,
1149 			      "fake del\n",
1150 			      skb_delba->data,
1151 			      skb_delba->len);
1152 		ieee80211_rx_irqsafe(hw, skb_delba);
1153 	}
1154 }
1155 
rtl_action_proc(struct ieee80211_hw * hw,struct sk_buff * skb,u8 is_tx)1156 bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
1157 {
1158 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1159 	struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1160 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1161 	__le16 fc = rtl_get_fc(skb);
1162 	u8 *act = (u8 *)(((u8 *)skb->data + MAC80211_3ADDR_LEN));
1163 	u8 category;
1164 
1165 	if (!ieee80211_is_action(fc))
1166 		return true;
1167 
1168 	category = *act;
1169 	act++;
1170 	switch (category) {
1171 	case ACT_CAT_BA:
1172 		switch (*act) {
1173 		case ACT_ADDBAREQ:
1174 			if (mac->act_scanning)
1175 				return false;
1176 
1177 			RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1178 				"%s ACT_ADDBAREQ From :%pM\n",
1179 				is_tx ? "Tx" : "Rx", hdr->addr2);
1180 			RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, "req\n",
1181 				skb->data, skb->len);
1182 			if (!is_tx) {
1183 				struct ieee80211_sta *sta = NULL;
1184 				struct rtl_sta_info *sta_entry = NULL;
1185 				struct rtl_tid_data *tid_data;
1186 				struct ieee80211_mgmt *mgmt = (void *)skb->data;
1187 				u16 capab = 0, tid = 0;
1188 
1189 				rcu_read_lock();
1190 				sta = rtl_find_sta(hw, hdr->addr3);
1191 				if (sta == NULL) {
1192 					RT_TRACE(rtlpriv, COMP_SEND | COMP_RECV,
1193 						 DBG_DMESG, "sta is NULL\n");
1194 					rcu_read_unlock();
1195 					return true;
1196 				}
1197 
1198 				sta_entry =
1199 					(struct rtl_sta_info *)sta->drv_priv;
1200 				if (!sta_entry) {
1201 					rcu_read_unlock();
1202 					return true;
1203 				}
1204 				capab =
1205 				  le16_to_cpu(mgmt->u.action.u.addba_req.capab);
1206 				tid = (capab &
1207 				       IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
1208 				tid_data = &sta_entry->tids[tid];
1209 				if (tid_data->agg.rx_agg_state ==
1210 				    RTL_RX_AGG_START)
1211 					process_agg_start(hw, hdr, tid);
1212 				rcu_read_unlock();
1213 			}
1214 			break;
1215 		case ACT_ADDBARSP:
1216 			RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1217 				 "%s ACT_ADDBARSP From :%pM\n",
1218 				  is_tx ? "Tx" : "Rx", hdr->addr2);
1219 			break;
1220 		case ACT_DELBA:
1221 			RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1222 				 "ACT_ADDBADEL From :%pM\n", hdr->addr2);
1223 			break;
1224 		}
1225 		break;
1226 	default:
1227 		break;
1228 	}
1229 
1230 	return true;
1231 }
1232 EXPORT_SYMBOL_GPL(rtl_action_proc);
1233 
setup_arp_tx(struct rtl_priv * rtlpriv,struct rtl_ps_ctl * ppsc)1234 static void setup_arp_tx(struct rtl_priv *rtlpriv, struct rtl_ps_ctl *ppsc)
1235 {
1236 	rtlpriv->ra.is_special_data = true;
1237 	if (rtlpriv->cfg->ops->get_btc_status())
1238 		rtlpriv->btcoexist.btc_ops->btc_special_packet_notify(
1239 					rtlpriv, 1);
1240 	rtlpriv->enter_ps = false;
1241 	schedule_work(&rtlpriv->works.lps_change_work);
1242 	ppsc->last_delaylps_stamp_jiffies = jiffies;
1243 }
1244 
1245 /*should call before software enc*/
rtl_is_special_data(struct ieee80211_hw * hw,struct sk_buff * skb,u8 is_tx)1246 u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
1247 {
1248 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1249 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1250 	__le16 fc = rtl_get_fc(skb);
1251 	u16 ether_type;
1252 	u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb);
1253 	u8 encrypt_header_len = 0;
1254 	u8 offset;
1255 	const struct iphdr *ip;
1256 
1257 	if (!ieee80211_is_data(fc))
1258 		goto end;
1259 
1260 	switch (rtlpriv->sec.pairwise_enc_algorithm) {
1261 	case WEP40_ENCRYPTION:
1262 	case WEP104_ENCRYPTION:
1263 		encrypt_header_len = 4;/*WEP_IV_LEN*/
1264 		break;
1265 	case TKIP_ENCRYPTION:
1266 		encrypt_header_len = 8;/*TKIP_IV_LEN*/
1267 		break;
1268 	case AESCCMP_ENCRYPTION:
1269 		encrypt_header_len = 8;/*CCMP_HDR_LEN;*/
1270 		break;
1271 	default:
1272 		break;
1273 	}
1274 
1275 	offset = mac_hdr_len + SNAP_SIZE + encrypt_header_len;
1276 	ether_type = be16_to_cpup((__be16 *)(skb->data + offset));
1277 
1278 	if (ETH_P_IP == ether_type) {
1279 		ip = (struct iphdr *)((u8 *)skb->data + offset +
1280 		     PROTOC_TYPE_SIZE);
1281 		if (IPPROTO_UDP == ip->protocol) {
1282 			struct udphdr *udp = (struct udphdr *)((u8 *)ip +
1283 							       (ip->ihl << 2));
1284 			if (((((u8 *)udp)[1] == 68) &&
1285 			     (((u8 *)udp)[3] == 67)) ||
1286 			    ((((u8 *)udp)[1] == 67) &&
1287 			     (((u8 *)udp)[3] == 68))) {
1288 				/* 68 : UDP BOOTP client
1289 				 * 67 : UDP BOOTP server
1290 				 */
1291 				RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV),
1292 					 DBG_DMESG, "dhcp %s !!\n",
1293 					 (is_tx) ? "Tx" : "Rx");
1294 
1295 				if (is_tx)
1296 					setup_arp_tx(rtlpriv, ppsc);
1297 				return true;
1298 			}
1299 		}
1300 	} else if (ETH_P_ARP == ether_type) {
1301 		if (is_tx)
1302 			setup_arp_tx(rtlpriv, ppsc);
1303 
1304 		return true;
1305 	} else if (ETH_P_PAE == ether_type) {
1306 		RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1307 			 "802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx");
1308 
1309 		if (is_tx) {
1310 			rtlpriv->ra.is_special_data = true;
1311 			rtlpriv->enter_ps = false;
1312 			schedule_work(&rtlpriv->works.lps_change_work);
1313 			ppsc->last_delaylps_stamp_jiffies = jiffies;
1314 		}
1315 
1316 		return true;
1317 	} else if (ETH_P_IPV6 == ether_type) {
1318 		/* TODO: Handle any IPv6 cases that need special handling.
1319 		 * For now, always return false
1320 		 */
1321 		goto end;
1322 	}
1323 
1324 end:
1325 	rtlpriv->ra.is_special_data = false;
1326 	return false;
1327 }
1328 EXPORT_SYMBOL_GPL(rtl_is_special_data);
1329 
1330 /*********************************************************
1331  *
1332  * functions called by core.c
1333  *
1334  *********************************************************/
rtl_tx_agg_start(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u16 tid,u16 * ssn)1335 int rtl_tx_agg_start(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1336 		     struct ieee80211_sta *sta, u16 tid, u16 *ssn)
1337 {
1338 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1339 	struct rtl_tid_data *tid_data;
1340 	struct rtl_sta_info *sta_entry = NULL;
1341 
1342 	if (sta == NULL)
1343 		return -EINVAL;
1344 
1345 	if (unlikely(tid >= MAX_TID_COUNT))
1346 		return -EINVAL;
1347 
1348 	sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1349 	if (!sta_entry)
1350 		return -ENXIO;
1351 	tid_data = &sta_entry->tids[tid];
1352 
1353 	RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1354 		 "on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1355 		 tid_data->seq_number);
1356 
1357 	*ssn = tid_data->seq_number;
1358 	tid_data->agg.agg_state = RTL_AGG_START;
1359 
1360 	ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1361 	return 0;
1362 }
1363 
rtl_tx_agg_stop(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u16 tid)1364 int rtl_tx_agg_stop(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1365 		    struct ieee80211_sta *sta, u16 tid)
1366 {
1367 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1368 	struct rtl_tid_data *tid_data;
1369 	struct rtl_sta_info *sta_entry = NULL;
1370 
1371 	if (sta == NULL)
1372 		return -EINVAL;
1373 
1374 	RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1375 		 "on ra = %pM tid = %d\n", sta->addr, tid);
1376 
1377 	if (unlikely(tid >= MAX_TID_COUNT))
1378 		return -EINVAL;
1379 
1380 	sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1381 	tid_data = &sta_entry->tids[tid];
1382 	sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP;
1383 
1384 	ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1385 	return 0;
1386 }
1387 
rtl_rx_agg_start(struct ieee80211_hw * hw,struct ieee80211_sta * sta,u16 tid)1388 int rtl_rx_agg_start(struct ieee80211_hw *hw,
1389 		     struct ieee80211_sta *sta, u16 tid)
1390 {
1391 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1392 	struct rtl_tid_data *tid_data;
1393 	struct rtl_sta_info *sta_entry = NULL;
1394 
1395 	if (sta == NULL)
1396 		return -EINVAL;
1397 
1398 	if (unlikely(tid >= MAX_TID_COUNT))
1399 		return -EINVAL;
1400 
1401 	sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1402 	if (!sta_entry)
1403 		return -ENXIO;
1404 	tid_data = &sta_entry->tids[tid];
1405 
1406 	RT_TRACE(rtlpriv, COMP_RECV, DBG_DMESG,
1407 		 "on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1408 		 tid_data->seq_number);
1409 
1410 	tid_data->agg.rx_agg_state = RTL_RX_AGG_START;
1411 	return 0;
1412 }
1413 
rtl_rx_agg_stop(struct ieee80211_hw * hw,struct ieee80211_sta * sta,u16 tid)1414 int rtl_rx_agg_stop(struct ieee80211_hw *hw,
1415 		    struct ieee80211_sta *sta, u16 tid)
1416 {
1417 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1418 	struct rtl_sta_info *sta_entry = NULL;
1419 
1420 	if (sta == NULL)
1421 		return -EINVAL;
1422 
1423 	RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1424 		 "on ra = %pM tid = %d\n", sta->addr, tid);
1425 
1426 	if (unlikely(tid >= MAX_TID_COUNT))
1427 		return -EINVAL;
1428 
1429 	sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1430 	sta_entry->tids[tid].agg.rx_agg_state = RTL_RX_AGG_STOP;
1431 
1432 	return 0;
1433 }
rtl_tx_agg_oper(struct ieee80211_hw * hw,struct ieee80211_sta * sta,u16 tid)1434 int rtl_tx_agg_oper(struct ieee80211_hw *hw,
1435 		struct ieee80211_sta *sta, u16 tid)
1436 {
1437 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1438 	struct rtl_sta_info *sta_entry = NULL;
1439 
1440 	if (sta == NULL)
1441 		return -EINVAL;
1442 
1443 	RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1444 		 "on ra = %pM tid = %d\n", sta->addr, tid);
1445 
1446 	if (unlikely(tid >= MAX_TID_COUNT))
1447 		return -EINVAL;
1448 
1449 	sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1450 	sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL;
1451 
1452 	return 0;
1453 }
1454 
1455 /*********************************************************
1456  *
1457  * wq & timer callback functions
1458  *
1459  *********************************************************/
1460 /* this function is used for roaming */
rtl_beacon_statistic(struct ieee80211_hw * hw,struct sk_buff * skb)1461 void rtl_beacon_statistic(struct ieee80211_hw *hw, struct sk_buff *skb)
1462 {
1463 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1464 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1465 
1466 	if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION)
1467 		return;
1468 
1469 	if (rtlpriv->mac80211.link_state < MAC80211_LINKED)
1470 		return;
1471 
1472 	/* check if this really is a beacon */
1473 	if (!ieee80211_is_beacon(hdr->frame_control) &&
1474 	    !ieee80211_is_probe_resp(hdr->frame_control))
1475 		return;
1476 
1477 	/* min. beacon length + FCS_LEN */
1478 	if (skb->len <= 40 + FCS_LEN)
1479 		return;
1480 
1481 	/* and only beacons from the associated BSSID, please */
1482 	if (!ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid))
1483 		return;
1484 
1485 	rtlpriv->link_info.bcn_rx_inperiod++;
1486 }
1487 EXPORT_SYMBOL_GPL(rtl_beacon_statistic);
1488 
rtl_watchdog_wq_callback(void * data)1489 void rtl_watchdog_wq_callback(void *data)
1490 {
1491 	struct rtl_works *rtlworks = container_of_dwork_rtl(data,
1492 							    struct rtl_works,
1493 							    watchdog_wq);
1494 	struct ieee80211_hw *hw = rtlworks->hw;
1495 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1496 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1497 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1498 	bool busytraffic = false;
1499 	bool tx_busy_traffic = false;
1500 	bool rx_busy_traffic = false;
1501 	bool higher_busytraffic = false;
1502 	bool higher_busyrxtraffic = false;
1503 	u8 idx, tid;
1504 	u32 rx_cnt_inp4eriod = 0;
1505 	u32 tx_cnt_inp4eriod = 0;
1506 	u32 aver_rx_cnt_inperiod = 0;
1507 	u32 aver_tx_cnt_inperiod = 0;
1508 	u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0};
1509 	u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0};
1510 
1511 	if (is_hal_stop(rtlhal))
1512 		return;
1513 
1514 	/* <1> Determine if action frame is allowed */
1515 	if (mac->link_state > MAC80211_NOLINK) {
1516 		if (mac->cnt_after_linked < 20)
1517 			mac->cnt_after_linked++;
1518 	} else {
1519 		mac->cnt_after_linked = 0;
1520 	}
1521 
1522 	/* <2> to check if traffic busy, if
1523 	 * busytraffic we don't change channel
1524 	 */
1525 	if (mac->link_state >= MAC80211_LINKED) {
1526 
1527 		/* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */
1528 		for (idx = 0; idx <= 2; idx++) {
1529 			rtlpriv->link_info.num_rx_in4period[idx] =
1530 			    rtlpriv->link_info.num_rx_in4period[idx + 1];
1531 			rtlpriv->link_info.num_tx_in4period[idx] =
1532 			    rtlpriv->link_info.num_tx_in4period[idx + 1];
1533 		}
1534 		rtlpriv->link_info.num_rx_in4period[3] =
1535 		    rtlpriv->link_info.num_rx_inperiod;
1536 		rtlpriv->link_info.num_tx_in4period[3] =
1537 		    rtlpriv->link_info.num_tx_inperiod;
1538 		for (idx = 0; idx <= 3; idx++) {
1539 			rx_cnt_inp4eriod +=
1540 			    rtlpriv->link_info.num_rx_in4period[idx];
1541 			tx_cnt_inp4eriod +=
1542 			    rtlpriv->link_info.num_tx_in4period[idx];
1543 		}
1544 		aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4;
1545 		aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4;
1546 
1547 		/* (2) check traffic busy */
1548 		if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) {
1549 			busytraffic = true;
1550 			if (aver_rx_cnt_inperiod > aver_tx_cnt_inperiod)
1551 				rx_busy_traffic = true;
1552 			else
1553 				tx_busy_traffic = false;
1554 		}
1555 
1556 		/* Higher Tx/Rx data. */
1557 		if (aver_rx_cnt_inperiod > 4000 ||
1558 		    aver_tx_cnt_inperiod > 4000) {
1559 			higher_busytraffic = true;
1560 
1561 			/* Extremely high Rx data. */
1562 			if (aver_rx_cnt_inperiod > 5000)
1563 				higher_busyrxtraffic = true;
1564 		}
1565 
1566 		/* check every tid's tx traffic */
1567 		for (tid = 0; tid <= 7; tid++) {
1568 			for (idx = 0; idx <= 2; idx++)
1569 				rtlpriv->link_info.tidtx_in4period[tid][idx] =
1570 					rtlpriv->link_info.tidtx_in4period[tid]
1571 					[idx + 1];
1572 			rtlpriv->link_info.tidtx_in4period[tid][3] =
1573 				rtlpriv->link_info.tidtx_inperiod[tid];
1574 
1575 			for (idx = 0; idx <= 3; idx++)
1576 				tidtx_inp4eriod[tid] +=
1577 				   rtlpriv->link_info.tidtx_in4period[tid][idx];
1578 			aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4;
1579 			if (aver_tidtx_inperiod[tid] > 5000)
1580 				rtlpriv->link_info.higher_busytxtraffic[tid] =
1581 									true;
1582 			else
1583 				rtlpriv->link_info.higher_busytxtraffic[tid] =
1584 									false;
1585 		}
1586 
1587 		if (((rtlpriv->link_info.num_rx_inperiod +
1588 		      rtlpriv->link_info.num_tx_inperiod) > 8) ||
1589 		    (rtlpriv->link_info.num_rx_inperiod > 2))
1590 			rtl_lps_leave(hw);
1591 		else
1592 			rtl_lps_enter(hw);
1593 	}
1594 
1595 	rtlpriv->link_info.num_rx_inperiod = 0;
1596 	rtlpriv->link_info.num_tx_inperiod = 0;
1597 	for (tid = 0; tid <= 7; tid++)
1598 		rtlpriv->link_info.tidtx_inperiod[tid] = 0;
1599 
1600 	rtlpriv->link_info.busytraffic = busytraffic;
1601 	rtlpriv->link_info.higher_busytraffic = higher_busytraffic;
1602 	rtlpriv->link_info.rx_busy_traffic = rx_busy_traffic;
1603 	rtlpriv->link_info.tx_busy_traffic = tx_busy_traffic;
1604 	rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic;
1605 
1606 	/* <3> DM */
1607 	if (!rtlpriv->cfg->mod_params->disable_watchdog)
1608 		rtlpriv->cfg->ops->dm_watchdog(hw);
1609 
1610 	/* <4> roaming */
1611 	if (mac->link_state == MAC80211_LINKED &&
1612 	    mac->opmode == NL80211_IFTYPE_STATION) {
1613 		if ((rtlpriv->link_info.bcn_rx_inperiod +
1614 		    rtlpriv->link_info.num_rx_inperiod) == 0) {
1615 			rtlpriv->link_info.roam_times++;
1616 			RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG,
1617 				 "AP off for %d s\n",
1618 				(rtlpriv->link_info.roam_times * 2));
1619 
1620 			/* if we can't recv beacon for 10s,
1621 			 * we should reconnect this AP
1622 			 */
1623 			if (rtlpriv->link_info.roam_times >= 5) {
1624 				RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1625 					 "AP off, try to reconnect now\n");
1626 				rtlpriv->link_info.roam_times = 0;
1627 				ieee80211_connection_loss(
1628 					rtlpriv->mac80211.vif);
1629 			}
1630 		} else {
1631 			rtlpriv->link_info.roam_times = 0;
1632 		}
1633 	}
1634 
1635 	if (rtlpriv->cfg->ops->get_btc_status())
1636 		rtlpriv->btcoexist.btc_ops->btc_periodical(rtlpriv);
1637 
1638 	rtlpriv->link_info.bcn_rx_inperiod = 0;
1639 }
1640 
rtl_watch_dog_timer_callback(unsigned long data)1641 void rtl_watch_dog_timer_callback(unsigned long data)
1642 {
1643 	struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
1644 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1645 
1646 	queue_delayed_work(rtlpriv->works.rtl_wq,
1647 			   &rtlpriv->works.watchdog_wq, 0);
1648 
1649 	mod_timer(&rtlpriv->works.watchdog_timer,
1650 		  jiffies + MSECS(RTL_WATCH_DOG_TIME));
1651 }
rtl_fwevt_wq_callback(void * data)1652 void rtl_fwevt_wq_callback(void *data)
1653 {
1654 	struct rtl_works *rtlworks =
1655 		container_of_dwork_rtl(data, struct rtl_works, fwevt_wq);
1656 	struct ieee80211_hw *hw = rtlworks->hw;
1657 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1658 
1659 	rtlpriv->cfg->ops->c2h_command_handle(hw);
1660 }
rtl_easy_concurrent_retrytimer_callback(unsigned long data)1661 void rtl_easy_concurrent_retrytimer_callback(unsigned long data)
1662 {
1663 	struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
1664 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1665 	struct rtl_priv *buddy_priv = rtlpriv->buddy_priv;
1666 
1667 	if (buddy_priv == NULL)
1668 		return;
1669 
1670 	rtlpriv->cfg->ops->dualmac_easy_concurrent(hw);
1671 }
1672 /*********************************************************
1673  *
1674  * frame process functions
1675  *
1676  *********************************************************/
rtl_find_ie(u8 * data,unsigned int len,u8 ie)1677 u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie)
1678 {
1679 	struct ieee80211_mgmt *mgmt = (void *)data;
1680 	u8 *pos, *end;
1681 
1682 	pos = (u8 *)mgmt->u.beacon.variable;
1683 	end = data + len;
1684 	while (pos < end) {
1685 		if (pos + 2 + pos[1] > end)
1686 			return NULL;
1687 
1688 		if (pos[0] == ie)
1689 			return pos;
1690 
1691 		pos += 2 + pos[1];
1692 	}
1693 	return NULL;
1694 }
1695 
1696 /* when we use 2 rx ants we send IEEE80211_SMPS_OFF */
1697 /* when we use 1 rx ant we send IEEE80211_SMPS_STATIC */
rtl_make_smps_action(struct ieee80211_hw * hw,enum ieee80211_smps_mode smps,u8 * da,u8 * bssid)1698 static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw,
1699 				     enum ieee80211_smps_mode smps,
1700 				     u8 *da, u8 *bssid)
1701 {
1702 	struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1703 	struct sk_buff *skb;
1704 	struct ieee80211_mgmt *action_frame;
1705 
1706 	/* 27 = header + category + action + smps mode */
1707 	skb = dev_alloc_skb(27 + hw->extra_tx_headroom);
1708 	if (!skb)
1709 		return NULL;
1710 
1711 	skb_reserve(skb, hw->extra_tx_headroom);
1712 	action_frame = (void *)skb_put(skb, 27);
1713 	memset(action_frame, 0, 27);
1714 	memcpy(action_frame->da, da, ETH_ALEN);
1715 	memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN);
1716 	memcpy(action_frame->bssid, bssid, ETH_ALEN);
1717 	action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1718 						  IEEE80211_STYPE_ACTION);
1719 	action_frame->u.action.category = WLAN_CATEGORY_HT;
1720 	action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS;
1721 	switch (smps) {
1722 	case IEEE80211_SMPS_AUTOMATIC:/* 0 */
1723 	case IEEE80211_SMPS_NUM_MODES:/* 4 */
1724 		WARN_ON(1);
1725 	/* Here will get a 'MISSING_BREAK' in Coverity Test, just ignore it.
1726 	 * According to Kernel Code, here is right.
1727 	 */
1728 	case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/
1729 		action_frame->u.action.u.ht_smps.smps_control =
1730 				WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */
1731 		break;
1732 	case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/
1733 		action_frame->u.action.u.ht_smps.smps_control =
1734 				WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */
1735 		break;
1736 	case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/
1737 		action_frame->u.action.u.ht_smps.smps_control =
1738 				WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */
1739 		break;
1740 	}
1741 
1742 	return skb;
1743 }
1744 
rtl_send_smps_action(struct ieee80211_hw * hw,struct ieee80211_sta * sta,enum ieee80211_smps_mode smps)1745 int rtl_send_smps_action(struct ieee80211_hw *hw,
1746 			 struct ieee80211_sta *sta,
1747 			 enum ieee80211_smps_mode smps)
1748 {
1749 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1750 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1751 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1752 	struct sk_buff *skb = NULL;
1753 	struct rtl_tcb_desc tcb_desc;
1754 	u8 bssid[ETH_ALEN] = {0};
1755 
1756 	memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
1757 
1758 	if (rtlpriv->mac80211.act_scanning)
1759 		goto err_free;
1760 
1761 	if (!sta)
1762 		goto err_free;
1763 
1764 	if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
1765 		goto err_free;
1766 
1767 	if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
1768 		goto err_free;
1769 
1770 	if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP)
1771 		memcpy(bssid, rtlpriv->efuse.dev_addr, ETH_ALEN);
1772 	else
1773 		memcpy(bssid, rtlpriv->mac80211.bssid, ETH_ALEN);
1774 
1775 	skb = rtl_make_smps_action(hw, smps, sta->addr, bssid);
1776 	/* this is a type = mgmt * stype = action frame */
1777 	if (skb) {
1778 		struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1779 		struct rtl_sta_info *sta_entry =
1780 			(struct rtl_sta_info *) sta->drv_priv;
1781 		sta_entry->mimo_ps = smps;
1782 		/* rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0); */
1783 
1784 		info->control.rates[0].idx = 0;
1785 		info->band = hw->conf.chandef.chan->band;
1786 		rtlpriv->intf_ops->adapter_tx(hw, sta, skb, &tcb_desc);
1787 	}
1788 	return 1;
1789 
1790 err_free:
1791 	return 0;
1792 }
1793 EXPORT_SYMBOL(rtl_send_smps_action);
1794 
rtl_phy_scan_operation_backup(struct ieee80211_hw * hw,u8 operation)1795 void rtl_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation)
1796 {
1797 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1798 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1799 	enum io_type iotype;
1800 
1801 	if (!is_hal_stop(rtlhal)) {
1802 		switch (operation) {
1803 		case SCAN_OPT_BACKUP:
1804 			iotype = IO_CMD_PAUSE_DM_BY_SCAN;
1805 			rtlpriv->cfg->ops->set_hw_reg(hw,
1806 						      HW_VAR_IO_CMD,
1807 						      (u8 *)&iotype);
1808 			break;
1809 		case SCAN_OPT_RESTORE:
1810 			iotype = IO_CMD_RESUME_DM_BY_SCAN;
1811 			rtlpriv->cfg->ops->set_hw_reg(hw,
1812 						      HW_VAR_IO_CMD,
1813 						      (u8 *)&iotype);
1814 			break;
1815 		default:
1816 			RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1817 				 "Unknown Scan Backup operation.\n");
1818 			break;
1819 		}
1820 	}
1821 }
1822 EXPORT_SYMBOL(rtl_phy_scan_operation_backup);
1823 
1824 /* because mac80211 have issues when can receive del ba
1825  * so here we just make a fake del_ba if we receive a ba_req
1826  * but rx_agg was opened to let mac80211 release some ba
1827  * related resources, so please this del_ba for tx
1828  */
rtl_make_del_ba(struct ieee80211_hw * hw,u8 * sa,u8 * bssid,u16 tid)1829 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw,
1830 				u8 *sa, u8 *bssid, u16 tid)
1831 {
1832 	struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1833 	struct sk_buff *skb;
1834 	struct ieee80211_mgmt *action_frame;
1835 	u16 params;
1836 
1837 	/* 27 = header + category + action + smps mode */
1838 	skb = dev_alloc_skb(34 + hw->extra_tx_headroom);
1839 	if (!skb)
1840 		return NULL;
1841 
1842 	skb_reserve(skb, hw->extra_tx_headroom);
1843 	action_frame = (void *)skb_put(skb, 34);
1844 	memset(action_frame, 0, 34);
1845 	memcpy(action_frame->sa, sa, ETH_ALEN);
1846 	memcpy(action_frame->da, rtlefuse->dev_addr, ETH_ALEN);
1847 	memcpy(action_frame->bssid, bssid, ETH_ALEN);
1848 	action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1849 						  IEEE80211_STYPE_ACTION);
1850 	action_frame->u.action.category = WLAN_CATEGORY_BACK;
1851 	action_frame->u.action.u.delba.action_code = WLAN_ACTION_DELBA;
1852 	params = (u16)(1 << 11);	/* bit 11 initiator */
1853 	params |= (u16)(tid << 12);	/* bit 15:12 TID number */
1854 
1855 	action_frame->u.action.u.delba.params = cpu_to_le16(params);
1856 	action_frame->u.action.u.delba.reason_code =
1857 		cpu_to_le16(WLAN_REASON_QSTA_TIMEOUT);
1858 
1859 	return skb;
1860 }
1861 
1862 /*********************************************************
1863  *
1864  * IOT functions
1865  *
1866  *********************************************************/
rtl_chk_vendor_ouisub(struct ieee80211_hw * hw,struct octet_string vendor_ie)1867 static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw,
1868 				  struct octet_string vendor_ie)
1869 {
1870 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1871 	bool matched = false;
1872 	static u8 athcap_1[] = { 0x00, 0x03, 0x7F };
1873 	static u8 athcap_2[] = { 0x00, 0x13, 0x74 };
1874 	static u8 broadcap_1[] = { 0x00, 0x10, 0x18 };
1875 	static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 };
1876 	static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 };
1877 	static u8 racap[] = { 0x00, 0x0c, 0x43 };
1878 	static u8 ciscocap[] = { 0x00, 0x40, 0x96 };
1879 	static u8 marvcap[] = { 0x00, 0x50, 0x43 };
1880 
1881 	if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 ||
1882 		memcmp(vendor_ie.octet, athcap_2, 3) == 0) {
1883 		rtlpriv->mac80211.vendor = PEER_ATH;
1884 		matched = true;
1885 	} else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 ||
1886 		memcmp(vendor_ie.octet, broadcap_2, 3) == 0 ||
1887 		memcmp(vendor_ie.octet, broadcap_3, 3) == 0) {
1888 		rtlpriv->mac80211.vendor = PEER_BROAD;
1889 		matched = true;
1890 	} else if (memcmp(vendor_ie.octet, racap, 3) == 0) {
1891 		rtlpriv->mac80211.vendor = PEER_RAL;
1892 		matched = true;
1893 	} else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) {
1894 		rtlpriv->mac80211.vendor = PEER_CISCO;
1895 		matched = true;
1896 	} else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) {
1897 		rtlpriv->mac80211.vendor = PEER_MARV;
1898 		matched = true;
1899 	}
1900 
1901 	return matched;
1902 }
1903 
rtl_find_221_ie(struct ieee80211_hw * hw,u8 * data,unsigned int len)1904 static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data,
1905 		unsigned int len)
1906 {
1907 	struct ieee80211_mgmt *mgmt = (void *)data;
1908 	struct octet_string vendor_ie;
1909 	u8 *pos, *end;
1910 
1911 	pos = (u8 *)mgmt->u.beacon.variable;
1912 	end = data + len;
1913 	while (pos < end) {
1914 		if (pos[0] == 221) {
1915 			vendor_ie.length = pos[1];
1916 			vendor_ie.octet = &pos[2];
1917 			if (rtl_chk_vendor_ouisub(hw, vendor_ie))
1918 				return true;
1919 		}
1920 
1921 		if (pos + 2 + pos[1] > end)
1922 			return false;
1923 
1924 		pos += 2 + pos[1];
1925 	}
1926 	return false;
1927 }
1928 
rtl_recognize_peer(struct ieee80211_hw * hw,u8 * data,unsigned int len)1929 void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len)
1930 {
1931 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1932 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1933 	struct ieee80211_hdr *hdr = (void *)data;
1934 	u32 vendor = PEER_UNKNOWN;
1935 
1936 	static u8 ap3_1[3] = { 0x00, 0x14, 0xbf };
1937 	static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 };
1938 	static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e };
1939 	static u8 ap4_1[3] = { 0x00, 0x90, 0xcc };
1940 	static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e };
1941 	static u8 ap4_3[3] = { 0x00, 0x18, 0x02 };
1942 	static u8 ap4_4[3] = { 0x00, 0x17, 0x3f };
1943 	static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf };
1944 	static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 };
1945 	static u8 ap5_2[3] = { 0x00, 0x21, 0x91 };
1946 	static u8 ap5_3[3] = { 0x00, 0x24, 0x01 };
1947 	static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 };
1948 	static u8 ap5_5[3] = { 0x00, 0x17, 0x9A };
1949 	static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 };
1950 	static u8 ap6_1[3] = { 0x00, 0x17, 0x94 };
1951 	static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 };
1952 
1953 	if (mac->opmode != NL80211_IFTYPE_STATION)
1954 		return;
1955 
1956 	if (mac->link_state == MAC80211_NOLINK) {
1957 		mac->vendor = PEER_UNKNOWN;
1958 		return;
1959 	}
1960 
1961 	if (mac->cnt_after_linked > 2)
1962 		return;
1963 
1964 	/* check if this really is a beacon */
1965 	if (!ieee80211_is_beacon(hdr->frame_control))
1966 		return;
1967 
1968 	/* min. beacon length + FCS_LEN */
1969 	if (len <= 40 + FCS_LEN)
1970 		return;
1971 
1972 	/* and only beacons from the associated BSSID, please */
1973 	if (!ether_addr_equal_64bits(hdr->addr3, rtlpriv->mac80211.bssid))
1974 		return;
1975 
1976 	if (rtl_find_221_ie(hw, data, len))
1977 		vendor = mac->vendor;
1978 
1979 	if ((memcmp(mac->bssid, ap5_1, 3) == 0) ||
1980 		(memcmp(mac->bssid, ap5_2, 3) == 0) ||
1981 		(memcmp(mac->bssid, ap5_3, 3) == 0) ||
1982 		(memcmp(mac->bssid, ap5_4, 3) == 0) ||
1983 		(memcmp(mac->bssid, ap5_5, 3) == 0) ||
1984 		(memcmp(mac->bssid, ap5_6, 3) == 0) ||
1985 		vendor == PEER_ATH) {
1986 		vendor = PEER_ATH;
1987 		RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ath find\n");
1988 	} else if ((memcmp(mac->bssid, ap4_4, 3) == 0) ||
1989 		(memcmp(mac->bssid, ap4_5, 3) == 0) ||
1990 		(memcmp(mac->bssid, ap4_1, 3) == 0) ||
1991 		(memcmp(mac->bssid, ap4_2, 3) == 0) ||
1992 		(memcmp(mac->bssid, ap4_3, 3) == 0) ||
1993 		vendor == PEER_RAL) {
1994 		RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ral find\n");
1995 		vendor = PEER_RAL;
1996 	} else if (memcmp(mac->bssid, ap6_1, 3) == 0 ||
1997 		vendor == PEER_CISCO) {
1998 		vendor = PEER_CISCO;
1999 		RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>cisco find\n");
2000 	} else if ((memcmp(mac->bssid, ap3_1, 3) == 0) ||
2001 		(memcmp(mac->bssid, ap3_2, 3) == 0) ||
2002 		(memcmp(mac->bssid, ap3_3, 3) == 0) ||
2003 		vendor == PEER_BROAD) {
2004 		RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>broad find\n");
2005 		vendor = PEER_BROAD;
2006 	} else if (memcmp(mac->bssid, ap7_1, 3) == 0 ||
2007 		vendor == PEER_MARV) {
2008 		vendor = PEER_MARV;
2009 		RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>marv find\n");
2010 	}
2011 
2012 	mac->vendor = vendor;
2013 }
2014 EXPORT_SYMBOL_GPL(rtl_recognize_peer);
2015 
2016 /*********************************************************
2017  *
2018  * sysfs functions
2019  *
2020  *********************************************************/
rtl_show_debug_level(struct device * d,struct device_attribute * attr,char * buf)2021 static ssize_t rtl_show_debug_level(struct device *d,
2022 				    struct device_attribute *attr, char *buf)
2023 {
2024 	struct ieee80211_hw *hw = dev_get_drvdata(d);
2025 	struct rtl_priv *rtlpriv = rtl_priv(hw);
2026 
2027 	return sprintf(buf, "0x%08X\n", rtlpriv->dbg.global_debuglevel);
2028 }
2029 
rtl_store_debug_level(struct device * d,struct device_attribute * attr,const char * buf,size_t count)2030 static ssize_t rtl_store_debug_level(struct device *d,
2031 				     struct device_attribute *attr,
2032 				     const char *buf, size_t count)
2033 {
2034 	struct ieee80211_hw *hw = dev_get_drvdata(d);
2035 	struct rtl_priv *rtlpriv = rtl_priv(hw);
2036 	unsigned long val;
2037 	int ret;
2038 
2039 	ret = kstrtoul(buf, 0, &val);
2040 	if (ret) {
2041 		RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG,
2042 			 "%s is not in hex or decimal form.\n", buf);
2043 	} else {
2044 		rtlpriv->dbg.global_debuglevel = val;
2045 		RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG,
2046 			 "debuglevel:%x\n",
2047 			 rtlpriv->dbg.global_debuglevel);
2048 	}
2049 
2050 	return strnlen(buf, count);
2051 }
2052 
2053 static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
2054 		   rtl_show_debug_level, rtl_store_debug_level);
2055 
2056 static struct attribute *rtl_sysfs_entries[] = {
2057 
2058 	&dev_attr_debug_level.attr,
2059 
2060 	NULL
2061 };
2062 
2063 /*
2064  * "name" is folder name witch will be
2065  * put in device directory like :
2066  * sys/devices/pci0000:00/0000:00:1c.4/
2067  * 0000:06:00.0/rtl_sysfs
2068  */
2069 struct attribute_group rtl_attribute_group = {
2070 	.name = "rtlsysfs",
2071 	.attrs = rtl_sysfs_entries,
2072 };
2073 EXPORT_SYMBOL_GPL(rtl_attribute_group);
2074 
2075 MODULE_AUTHOR("lizhaoming	<chaoming_li@realsil.com.cn>");
2076 MODULE_AUTHOR("Realtek WlanFAE	<wlanfae@realtek.com>");
2077 MODULE_AUTHOR("Larry Finger	<Larry.FInger@lwfinger.net>");
2078 MODULE_LICENSE("GPL");
2079 MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");
2080 
2081 struct rtl_global_var rtl_global_var = {};
2082 EXPORT_SYMBOL_GPL(rtl_global_var);
2083 
rtl_core_module_init(void)2084 static int __init rtl_core_module_init(void)
2085 {
2086 	if (rtl_rate_control_register())
2087 		pr_err("rtl: Unable to register rtl_rc, use default RC !!\n");
2088 
2089 	/* init some global vars */
2090 	INIT_LIST_HEAD(&rtl_global_var.glb_priv_list);
2091 	spin_lock_init(&rtl_global_var.glb_list_lock);
2092 
2093 	return 0;
2094 }
2095 
rtl_core_module_exit(void)2096 static void __exit rtl_core_module_exit(void)
2097 {
2098 	/*RC*/
2099 	rtl_rate_control_unregister();
2100 }
2101 
2102 module_init(rtl_core_module_init);
2103 module_exit(rtl_core_module_exit);
2104