1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 2009-2012  Realtek Corporation.*/
3 
4 #include "wifi.h"
5 #include "rc.h"
6 #include "base.h"
7 #include "efuse.h"
8 #include "cam.h"
9 #include "ps.h"
10 #include "regd.h"
11 #include "pci.h"
12 #include <linux/ip.h>
13 #include <linux/module.h>
14 #include <linux/udp.h>
15 
16 /*
17  *NOTICE!!!: This file will be very big, we should
18  *keep it clear under following roles:
19  *
20  *This file include following parts, so, if you add new
21  *functions into this file, please check which part it
22  *should includes. or check if you should add new part
23  *for this file:
24  *
25  *1) mac80211 init functions
26  *2) tx information functions
27  *3) functions called by core.c
28  *4) wq & timer callback functions
29  *5) frame process functions
30  *6) IOT functions
31  *7) sysfs functions
32  *8) vif functions
33  *9) ...
34  */
35 
36 /*********************************************************
37  *
38  * mac80211 init functions
39  *
40  *********************************************************/
41 static struct ieee80211_channel rtl_channeltable_2g[] = {
42 	{.center_freq = 2412, .hw_value = 1,},
43 	{.center_freq = 2417, .hw_value = 2,},
44 	{.center_freq = 2422, .hw_value = 3,},
45 	{.center_freq = 2427, .hw_value = 4,},
46 	{.center_freq = 2432, .hw_value = 5,},
47 	{.center_freq = 2437, .hw_value = 6,},
48 	{.center_freq = 2442, .hw_value = 7,},
49 	{.center_freq = 2447, .hw_value = 8,},
50 	{.center_freq = 2452, .hw_value = 9,},
51 	{.center_freq = 2457, .hw_value = 10,},
52 	{.center_freq = 2462, .hw_value = 11,},
53 	{.center_freq = 2467, .hw_value = 12,},
54 	{.center_freq = 2472, .hw_value = 13,},
55 	{.center_freq = 2484, .hw_value = 14,},
56 };
57 
58 static struct ieee80211_channel rtl_channeltable_5g[] = {
59 	{.center_freq = 5180, .hw_value = 36,},
60 	{.center_freq = 5200, .hw_value = 40,},
61 	{.center_freq = 5220, .hw_value = 44,},
62 	{.center_freq = 5240, .hw_value = 48,},
63 	{.center_freq = 5260, .hw_value = 52,},
64 	{.center_freq = 5280, .hw_value = 56,},
65 	{.center_freq = 5300, .hw_value = 60,},
66 	{.center_freq = 5320, .hw_value = 64,},
67 	{.center_freq = 5500, .hw_value = 100,},
68 	{.center_freq = 5520, .hw_value = 104,},
69 	{.center_freq = 5540, .hw_value = 108,},
70 	{.center_freq = 5560, .hw_value = 112,},
71 	{.center_freq = 5580, .hw_value = 116,},
72 	{.center_freq = 5600, .hw_value = 120,},
73 	{.center_freq = 5620, .hw_value = 124,},
74 	{.center_freq = 5640, .hw_value = 128,},
75 	{.center_freq = 5660, .hw_value = 132,},
76 	{.center_freq = 5680, .hw_value = 136,},
77 	{.center_freq = 5700, .hw_value = 140,},
78 	{.center_freq = 5745, .hw_value = 149,},
79 	{.center_freq = 5765, .hw_value = 153,},
80 	{.center_freq = 5785, .hw_value = 157,},
81 	{.center_freq = 5805, .hw_value = 161,},
82 	{.center_freq = 5825, .hw_value = 165,},
83 };
84 
85 static struct ieee80211_rate rtl_ratetable_2g[] = {
86 	{.bitrate = 10, .hw_value = 0x00,},
87 	{.bitrate = 20, .hw_value = 0x01,},
88 	{.bitrate = 55, .hw_value = 0x02,},
89 	{.bitrate = 110, .hw_value = 0x03,},
90 	{.bitrate = 60, .hw_value = 0x04,},
91 	{.bitrate = 90, .hw_value = 0x05,},
92 	{.bitrate = 120, .hw_value = 0x06,},
93 	{.bitrate = 180, .hw_value = 0x07,},
94 	{.bitrate = 240, .hw_value = 0x08,},
95 	{.bitrate = 360, .hw_value = 0x09,},
96 	{.bitrate = 480, .hw_value = 0x0a,},
97 	{.bitrate = 540, .hw_value = 0x0b,},
98 };
99 
100 static struct ieee80211_rate rtl_ratetable_5g[] = {
101 	{.bitrate = 60, .hw_value = 0x04,},
102 	{.bitrate = 90, .hw_value = 0x05,},
103 	{.bitrate = 120, .hw_value = 0x06,},
104 	{.bitrate = 180, .hw_value = 0x07,},
105 	{.bitrate = 240, .hw_value = 0x08,},
106 	{.bitrate = 360, .hw_value = 0x09,},
107 	{.bitrate = 480, .hw_value = 0x0a,},
108 	{.bitrate = 540, .hw_value = 0x0b,},
109 };
110 
111 static const struct ieee80211_supported_band rtl_band_2ghz = {
112 	.band = NL80211_BAND_2GHZ,
113 
114 	.channels = rtl_channeltable_2g,
115 	.n_channels = ARRAY_SIZE(rtl_channeltable_2g),
116 
117 	.bitrates = rtl_ratetable_2g,
118 	.n_bitrates = ARRAY_SIZE(rtl_ratetable_2g),
119 
120 	.ht_cap = {0},
121 };
122 
123 static struct ieee80211_supported_band rtl_band_5ghz = {
124 	.band = NL80211_BAND_5GHZ,
125 
126 	.channels = rtl_channeltable_5g,
127 	.n_channels = ARRAY_SIZE(rtl_channeltable_5g),
128 
129 	.bitrates = rtl_ratetable_5g,
130 	.n_bitrates = ARRAY_SIZE(rtl_ratetable_5g),
131 
132 	.ht_cap = {0},
133 };
134 
135 static const u8 tid_to_ac[] = {
136 	2, /* IEEE80211_AC_BE */
137 	3, /* IEEE80211_AC_BK */
138 	3, /* IEEE80211_AC_BK */
139 	2, /* IEEE80211_AC_BE */
140 	1, /* IEEE80211_AC_VI */
141 	1, /* IEEE80211_AC_VI */
142 	0, /* IEEE80211_AC_VO */
143 	0, /* IEEE80211_AC_VO */
144 };
145 
rtl_tid_to_ac(u8 tid)146 u8 rtl_tid_to_ac(u8 tid)
147 {
148 	return tid_to_ac[tid];
149 }
150 EXPORT_SYMBOL_GPL(rtl_tid_to_ac);
151 
_rtl_init_hw_ht_capab(struct ieee80211_hw * hw,struct ieee80211_sta_ht_cap * ht_cap)152 static void _rtl_init_hw_ht_capab(struct ieee80211_hw *hw,
153 				  struct ieee80211_sta_ht_cap *ht_cap)
154 {
155 	struct rtl_priv *rtlpriv = rtl_priv(hw);
156 	struct rtl_phy *rtlphy = &(rtlpriv->phy);
157 
158 	ht_cap->ht_supported = true;
159 	ht_cap->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
160 	    IEEE80211_HT_CAP_SGI_40 |
161 	    IEEE80211_HT_CAP_SGI_20 |
162 	    IEEE80211_HT_CAP_DSSSCCK40 | IEEE80211_HT_CAP_MAX_AMSDU;
163 
164 	if (rtlpriv->rtlhal.disable_amsdu_8k)
165 		ht_cap->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
166 
167 	/*
168 	 *Maximum length of AMPDU that the STA can receive.
169 	 *Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
170 	 */
171 	ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
172 
173 	/*Minimum MPDU start spacing , */
174 	ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
175 
176 	ht_cap->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
177 
178 	/*hw->wiphy->bands[NL80211_BAND_2GHZ]
179 	 *base on ant_num
180 	 *rx_mask: RX mask
181 	 *if rx_ant = 1 rx_mask[0]= 0xff;==>MCS0-MCS7
182 	 *if rx_ant = 2 rx_mask[1]= 0xff;==>MCS8-MCS15
183 	 *if rx_ant >= 3 rx_mask[2]= 0xff;
184 	 *if BW_40 rx_mask[4]= 0x01;
185 	 *highest supported RX rate
186 	 */
187 	if (rtlpriv->dm.supp_phymode_switch) {
188 		pr_info("Support phy mode switch\n");
189 
190 		ht_cap->mcs.rx_mask[0] = 0xFF;
191 		ht_cap->mcs.rx_mask[1] = 0xFF;
192 		ht_cap->mcs.rx_mask[4] = 0x01;
193 
194 		ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
195 	} else {
196 		if (get_rf_type(rtlphy) == RF_1T2R ||
197 		    get_rf_type(rtlphy) == RF_2T2R) {
198 			rtl_dbg(rtlpriv, COMP_INIT, DBG_DMESG,
199 				"1T2R or 2T2R\n");
200 			ht_cap->mcs.rx_mask[0] = 0xFF;
201 			ht_cap->mcs.rx_mask[1] = 0xFF;
202 			ht_cap->mcs.rx_mask[4] = 0x01;
203 
204 			ht_cap->mcs.rx_highest =
205 				 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
206 		} else if (get_rf_type(rtlphy) == RF_1T1R) {
207 			rtl_dbg(rtlpriv, COMP_INIT, DBG_DMESG, "1T1R\n");
208 
209 			ht_cap->mcs.rx_mask[0] = 0xFF;
210 			ht_cap->mcs.rx_mask[1] = 0x00;
211 			ht_cap->mcs.rx_mask[4] = 0x01;
212 
213 			ht_cap->mcs.rx_highest =
214 				 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS7);
215 		}
216 	}
217 }
218 
_rtl_init_hw_vht_capab(struct ieee80211_hw * hw,struct ieee80211_sta_vht_cap * vht_cap)219 static void _rtl_init_hw_vht_capab(struct ieee80211_hw *hw,
220 				   struct ieee80211_sta_vht_cap *vht_cap)
221 {
222 	struct rtl_priv *rtlpriv = rtl_priv(hw);
223 	struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
224 
225 	if (!(rtlpriv->cfg->spec_ver & RTL_SPEC_SUPPORT_VHT))
226 		return;
227 
228 	if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE ||
229 	    rtlhal->hw_type == HARDWARE_TYPE_RTL8822BE) {
230 		u16 mcs_map;
231 
232 		vht_cap->vht_supported = true;
233 		vht_cap->cap =
234 			IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
235 			IEEE80211_VHT_CAP_SHORT_GI_80 |
236 			IEEE80211_VHT_CAP_TXSTBC |
237 			IEEE80211_VHT_CAP_RXSTBC_1 |
238 			IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
239 			IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
240 			IEEE80211_VHT_CAP_HTC_VHT |
241 			IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
242 			IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
243 			IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN |
244 			0;
245 
246 		mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
247 			IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
248 			IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
249 			IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
250 			IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
251 			IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
252 			IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
253 			IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;
254 
255 		vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
256 		vht_cap->vht_mcs.rx_highest =
257 			cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9);
258 		vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
259 		vht_cap->vht_mcs.tx_highest =
260 			cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9);
261 	} else if (rtlhal->hw_type == HARDWARE_TYPE_RTL8821AE) {
262 		u16 mcs_map;
263 
264 		vht_cap->vht_supported = true;
265 		vht_cap->cap =
266 			IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
267 			IEEE80211_VHT_CAP_SHORT_GI_80 |
268 			IEEE80211_VHT_CAP_TXSTBC |
269 			IEEE80211_VHT_CAP_RXSTBC_1 |
270 			IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
271 			IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
272 			IEEE80211_VHT_CAP_HTC_VHT |
273 			IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
274 			IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
275 			IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN |
276 			0;
277 
278 		mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
279 			IEEE80211_VHT_MCS_NOT_SUPPORTED << 2 |
280 			IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
281 			IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
282 			IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
283 			IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
284 			IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
285 			IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;
286 
287 		vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
288 		vht_cap->vht_mcs.rx_highest =
289 			cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9);
290 		vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
291 		vht_cap->vht_mcs.tx_highest =
292 			cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9);
293 	}
294 }
295 
_rtl_init_mac80211(struct ieee80211_hw * hw)296 static void _rtl_init_mac80211(struct ieee80211_hw *hw)
297 {
298 	struct rtl_priv *rtlpriv = rtl_priv(hw);
299 	struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
300 	struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
301 	struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
302 	struct ieee80211_supported_band *sband;
303 
304 	if (rtlhal->macphymode == SINGLEMAC_SINGLEPHY &&
305 	    rtlhal->bandset == BAND_ON_BOTH) {
306 		/* 1: 2.4 G bands */
307 		/* <1> use  mac->bands as mem for hw->wiphy->bands */
308 		sband = &(rtlmac->bands[NL80211_BAND_2GHZ]);
309 
310 		/* <2> set hw->wiphy->bands[NL80211_BAND_2GHZ]
311 		 * to default value(1T1R) */
312 		memcpy(&(rtlmac->bands[NL80211_BAND_2GHZ]), &rtl_band_2ghz,
313 				sizeof(struct ieee80211_supported_band));
314 
315 		/* <3> init ht cap base on ant_num */
316 		_rtl_init_hw_ht_capab(hw, &sband->ht_cap);
317 
318 		/* <4> set mac->sband to wiphy->sband */
319 		hw->wiphy->bands[NL80211_BAND_2GHZ] = sband;
320 
321 		/* 2: 5 G bands */
322 		/* <1> use  mac->bands as mem for hw->wiphy->bands */
323 		sband = &(rtlmac->bands[NL80211_BAND_5GHZ]);
324 
325 		/* <2> set hw->wiphy->bands[NL80211_BAND_5GHZ]
326 		 * to default value(1T1R) */
327 		memcpy(&(rtlmac->bands[NL80211_BAND_5GHZ]), &rtl_band_5ghz,
328 				sizeof(struct ieee80211_supported_band));
329 
330 		/* <3> init ht cap base on ant_num */
331 		_rtl_init_hw_ht_capab(hw, &sband->ht_cap);
332 
333 		_rtl_init_hw_vht_capab(hw, &sband->vht_cap);
334 		/* <4> set mac->sband to wiphy->sband */
335 		hw->wiphy->bands[NL80211_BAND_5GHZ] = sband;
336 	} else {
337 		if (rtlhal->current_bandtype == BAND_ON_2_4G) {
338 			/* <1> use  mac->bands as mem for hw->wiphy->bands */
339 			sband = &(rtlmac->bands[NL80211_BAND_2GHZ]);
340 
341 			/* <2> set hw->wiphy->bands[NL80211_BAND_2GHZ]
342 			 * to default value(1T1R) */
343 			memcpy(&(rtlmac->bands[NL80211_BAND_2GHZ]),
344 			       &rtl_band_2ghz,
345 			       sizeof(struct ieee80211_supported_band));
346 
347 			/* <3> init ht cap base on ant_num */
348 			_rtl_init_hw_ht_capab(hw, &sband->ht_cap);
349 
350 			/* <4> set mac->sband to wiphy->sband */
351 			hw->wiphy->bands[NL80211_BAND_2GHZ] = sband;
352 		} else if (rtlhal->current_bandtype == BAND_ON_5G) {
353 			/* <1> use  mac->bands as mem for hw->wiphy->bands */
354 			sband = &(rtlmac->bands[NL80211_BAND_5GHZ]);
355 
356 			/* <2> set hw->wiphy->bands[NL80211_BAND_5GHZ]
357 			 * to default value(1T1R) */
358 			memcpy(&(rtlmac->bands[NL80211_BAND_5GHZ]),
359 			       &rtl_band_5ghz,
360 			       sizeof(struct ieee80211_supported_band));
361 
362 			/* <3> init ht cap base on ant_num */
363 			_rtl_init_hw_ht_capab(hw, &sband->ht_cap);
364 
365 			_rtl_init_hw_vht_capab(hw, &sband->vht_cap);
366 			/* <4> set mac->sband to wiphy->sband */
367 			hw->wiphy->bands[NL80211_BAND_5GHZ] = sband;
368 		} else {
369 			pr_err("Err BAND %d\n",
370 			       rtlhal->current_bandtype);
371 		}
372 	}
373 	/* <5> set hw caps */
374 	ieee80211_hw_set(hw, SIGNAL_DBM);
375 	ieee80211_hw_set(hw, RX_INCLUDES_FCS);
376 	ieee80211_hw_set(hw, AMPDU_AGGREGATION);
377 	ieee80211_hw_set(hw, MFP_CAPABLE);
378 	ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
379 	ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
380 	ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
381 
382 	/* swlps or hwlps has been set in diff chip in init_sw_vars */
383 	if (rtlpriv->psc.swctrl_lps) {
384 		ieee80211_hw_set(hw, SUPPORTS_PS);
385 		ieee80211_hw_set(hw, PS_NULLFUNC_STACK);
386 	}
387 	if (rtlpriv->psc.fwctrl_lps) {
388 		ieee80211_hw_set(hw, SUPPORTS_PS);
389 		ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
390 	}
391 	hw->wiphy->interface_modes =
392 	    BIT(NL80211_IFTYPE_AP) |
393 	    BIT(NL80211_IFTYPE_STATION) |
394 	    BIT(NL80211_IFTYPE_ADHOC) |
395 	    BIT(NL80211_IFTYPE_MESH_POINT) |
396 	    BIT(NL80211_IFTYPE_P2P_CLIENT) |
397 	    BIT(NL80211_IFTYPE_P2P_GO);
398 	hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
399 
400 	hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
401 
402 	hw->wiphy->rts_threshold = 2347;
403 
404 	hw->queues = AC_MAX;
405 	hw->extra_tx_headroom = RTL_TX_HEADER_SIZE;
406 
407 	/* TODO: Correct this value for our hw */
408 	hw->max_listen_interval = MAX_LISTEN_INTERVAL;
409 	hw->max_rate_tries = MAX_RATE_TRIES;
410 	/* hw->max_rates = 1; */
411 	hw->sta_data_size = sizeof(struct rtl_sta_info);
412 
413 /* wowlan is not supported by kernel if CONFIG_PM is not defined */
414 #ifdef CONFIG_PM
415 	if (rtlpriv->psc.wo_wlan_mode) {
416 		if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_MAGIC_PACKET)
417 			rtlpriv->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT;
418 		if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_PATTERN_MATCH) {
419 			rtlpriv->wowlan.n_patterns =
420 				MAX_SUPPORT_WOL_PATTERN_NUM;
421 			rtlpriv->wowlan.pattern_min_len = MIN_WOL_PATTERN_SIZE;
422 			rtlpriv->wowlan.pattern_max_len = MAX_WOL_PATTERN_SIZE;
423 		}
424 		hw->wiphy->wowlan = &rtlpriv->wowlan;
425 	}
426 #endif
427 
428 	/* <6> mac address */
429 	if (is_valid_ether_addr(rtlefuse->dev_addr)) {
430 		SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr);
431 	} else {
432 		u8 rtlmac1[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 };
433 
434 		get_random_bytes((rtlmac1 + (ETH_ALEN - 1)), 1);
435 		SET_IEEE80211_PERM_ADDR(hw, rtlmac1);
436 	}
437 }
438 
439 static void rtl_watchdog_wq_callback(struct work_struct *work);
440 static void rtl_fwevt_wq_callback(struct work_struct *work);
441 static void rtl_c2hcmd_wq_callback(struct work_struct *work);
442 
_rtl_init_deferred_work(struct ieee80211_hw * hw)443 static int _rtl_init_deferred_work(struct ieee80211_hw *hw)
444 {
445 	struct rtl_priv *rtlpriv = rtl_priv(hw);
446 	struct workqueue_struct *wq;
447 
448 	wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name);
449 	if (!wq)
450 		return -ENOMEM;
451 
452 	/* <1> timer */
453 	timer_setup(&rtlpriv->works.watchdog_timer,
454 		    rtl_watch_dog_timer_callback, 0);
455 	timer_setup(&rtlpriv->works.dualmac_easyconcurrent_retrytimer,
456 		    rtl_easy_concurrent_retrytimer_callback, 0);
457 	/* <2> work queue */
458 	rtlpriv->works.hw = hw;
459 	rtlpriv->works.rtl_wq = wq;
460 
461 	INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
462 			  rtl_watchdog_wq_callback);
463 	INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,
464 			  rtl_ips_nic_off_wq_callback);
465 	INIT_DELAYED_WORK(&rtlpriv->works.ps_work, rtl_swlps_wq_callback);
466 	INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq,
467 			  rtl_swlps_rfon_wq_callback);
468 	INIT_DELAYED_WORK(&rtlpriv->works.fwevt_wq, rtl_fwevt_wq_callback);
469 	INIT_DELAYED_WORK(&rtlpriv->works.c2hcmd_wq, rtl_c2hcmd_wq_callback);
470 	return 0;
471 }
472 
rtl_deinit_deferred_work(struct ieee80211_hw * hw,bool ips_wq)473 void rtl_deinit_deferred_work(struct ieee80211_hw *hw, bool ips_wq)
474 {
475 	struct rtl_priv *rtlpriv = rtl_priv(hw);
476 
477 	del_timer_sync(&rtlpriv->works.watchdog_timer);
478 
479 	cancel_delayed_work_sync(&rtlpriv->works.watchdog_wq);
480 	if (ips_wq)
481 		cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq);
482 	else
483 		cancel_delayed_work_sync(&rtlpriv->works.ips_nic_off_wq);
484 	cancel_delayed_work_sync(&rtlpriv->works.ps_work);
485 	cancel_delayed_work_sync(&rtlpriv->works.ps_rfon_wq);
486 	cancel_delayed_work_sync(&rtlpriv->works.fwevt_wq);
487 	cancel_delayed_work_sync(&rtlpriv->works.c2hcmd_wq);
488 }
489 EXPORT_SYMBOL_GPL(rtl_deinit_deferred_work);
490 
rtl_init_rfkill(struct ieee80211_hw * hw)491 void rtl_init_rfkill(struct ieee80211_hw *hw)
492 {
493 	struct rtl_priv *rtlpriv = rtl_priv(hw);
494 
495 	bool radio_state;
496 	bool blocked;
497 	u8 valid = 0;
498 
499 	/*set init state to on */
500 	rtlpriv->rfkill.rfkill_state = true;
501 	wiphy_rfkill_set_hw_state(hw->wiphy, 0);
502 
503 	radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
504 
505 	if (valid) {
506 		pr_info("rtlwifi: wireless switch is %s\n",
507 			rtlpriv->rfkill.rfkill_state ? "on" : "off");
508 
509 		rtlpriv->rfkill.rfkill_state = radio_state;
510 
511 		blocked = rtlpriv->rfkill.rfkill_state != 1;
512 		wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
513 	}
514 
515 	wiphy_rfkill_start_polling(hw->wiphy);
516 }
517 EXPORT_SYMBOL(rtl_init_rfkill);
518 
rtl_deinit_rfkill(struct ieee80211_hw * hw)519 void rtl_deinit_rfkill(struct ieee80211_hw *hw)
520 {
521 	wiphy_rfkill_stop_polling(hw->wiphy);
522 }
523 EXPORT_SYMBOL_GPL(rtl_deinit_rfkill);
524 
rtl_init_core(struct ieee80211_hw * hw)525 int rtl_init_core(struct ieee80211_hw *hw)
526 {
527 	struct rtl_priv *rtlpriv = rtl_priv(hw);
528 	struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
529 
530 	/* <1> init mac80211 */
531 	_rtl_init_mac80211(hw);
532 	rtlmac->hw = hw;
533 
534 	/* <2> rate control register */
535 	hw->rate_control_algorithm = "rtl_rc";
536 
537 	/*
538 	 * <3> init CRDA must come after init
539 	 * mac80211 hw  in _rtl_init_mac80211.
540 	 */
541 	if (rtl_regd_init(hw, rtl_reg_notifier)) {
542 		pr_err("REGD init failed\n");
543 		return 1;
544 	}
545 
546 	/* <4> locks */
547 	mutex_init(&rtlpriv->locks.conf_mutex);
548 	mutex_init(&rtlpriv->locks.ips_mutex);
549 	mutex_init(&rtlpriv->locks.lps_mutex);
550 	spin_lock_init(&rtlpriv->locks.irq_th_lock);
551 	spin_lock_init(&rtlpriv->locks.h2c_lock);
552 	spin_lock_init(&rtlpriv->locks.rf_ps_lock);
553 	spin_lock_init(&rtlpriv->locks.rf_lock);
554 	spin_lock_init(&rtlpriv->locks.waitq_lock);
555 	spin_lock_init(&rtlpriv->locks.entry_list_lock);
556 	spin_lock_init(&rtlpriv->locks.scan_list_lock);
557 	spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock);
558 	spin_lock_init(&rtlpriv->locks.fw_ps_lock);
559 	spin_lock_init(&rtlpriv->locks.iqk_lock);
560 	/* <5> init list */
561 	INIT_LIST_HEAD(&rtlpriv->entry_list);
562 	INIT_LIST_HEAD(&rtlpriv->scan_list.list);
563 	skb_queue_head_init(&rtlpriv->tx_report.queue);
564 	skb_queue_head_init(&rtlpriv->c2hcmd_queue);
565 
566 	rtlmac->link_state = MAC80211_NOLINK;
567 
568 	/* <6> init deferred work */
569 	return _rtl_init_deferred_work(hw);
570 }
571 EXPORT_SYMBOL_GPL(rtl_init_core);
572 
573 static void rtl_free_entries_from_scan_list(struct ieee80211_hw *hw);
574 static void rtl_free_entries_from_ack_queue(struct ieee80211_hw *hw,
575 					    bool timeout);
576 
rtl_deinit_core(struct ieee80211_hw * hw)577 void rtl_deinit_core(struct ieee80211_hw *hw)
578 {
579 	rtl_c2hcmd_launcher(hw, 0);
580 	rtl_free_entries_from_scan_list(hw);
581 	rtl_free_entries_from_ack_queue(hw, false);
582 }
583 EXPORT_SYMBOL_GPL(rtl_deinit_core);
584 
rtl_init_rx_config(struct ieee80211_hw * hw)585 void rtl_init_rx_config(struct ieee80211_hw *hw)
586 {
587 	struct rtl_priv *rtlpriv = rtl_priv(hw);
588 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
589 
590 	rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf));
591 }
592 EXPORT_SYMBOL_GPL(rtl_init_rx_config);
593 
594 /*********************************************************
595  *
596  * tx information functions
597  *
598  *********************************************************/
_rtl_qurey_shortpreamble_mode(struct ieee80211_hw * hw,struct rtl_tcb_desc * tcb_desc,struct ieee80211_tx_info * info)599 static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw,
600 					  struct rtl_tcb_desc *tcb_desc,
601 					  struct ieee80211_tx_info *info)
602 {
603 	struct rtl_priv *rtlpriv = rtl_priv(hw);
604 	u8 rate_flag = info->control.rates[0].flags;
605 
606 	tcb_desc->use_shortpreamble = false;
607 
608 	/* 1M can only use Long Preamble. 11B spec */
609 	if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M])
610 		return;
611 	else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
612 		tcb_desc->use_shortpreamble = true;
613 
614 	return;
615 }
616 
_rtl_query_shortgi(struct ieee80211_hw * hw,struct ieee80211_sta * sta,struct rtl_tcb_desc * tcb_desc,struct ieee80211_tx_info * info)617 static void _rtl_query_shortgi(struct ieee80211_hw *hw,
618 			       struct ieee80211_sta *sta,
619 			       struct rtl_tcb_desc *tcb_desc,
620 			       struct ieee80211_tx_info *info)
621 {
622 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
623 	u8 rate_flag = info->control.rates[0].flags;
624 	u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0;
625 	u8 sgi_80 = 0, bw_80 = 0;
626 
627 	tcb_desc->use_shortgi = false;
628 
629 	if (sta == NULL)
630 		return;
631 
632 	sgi_40 = sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SGI_40;
633 	sgi_20 = sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SGI_20;
634 	sgi_80 = sta->deflink.vht_cap.cap & IEEE80211_VHT_CAP_SHORT_GI_80;
635 
636 	if (!sta->deflink.ht_cap.ht_supported &&
637 	    !sta->deflink.vht_cap.vht_supported)
638 		return;
639 
640 	if (!sgi_40 && !sgi_20)
641 		return;
642 
643 	if (mac->opmode == NL80211_IFTYPE_STATION) {
644 		bw_40 = mac->bw_40;
645 		bw_80 = mac->bw_80;
646 	} else if (mac->opmode == NL80211_IFTYPE_AP ||
647 		 mac->opmode == NL80211_IFTYPE_ADHOC ||
648 		 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
649 		bw_40 = sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40;
650 		bw_80 = sta->deflink.vht_cap.vht_supported;
651 	}
652 
653 	if (bw_80) {
654 		if (sgi_80)
655 			tcb_desc->use_shortgi = true;
656 		else
657 			tcb_desc->use_shortgi = false;
658 	} else {
659 		if (bw_40 && sgi_40)
660 			tcb_desc->use_shortgi = true;
661 		else if (!bw_40 && sgi_20)
662 			tcb_desc->use_shortgi = true;
663 	}
664 
665 	if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI))
666 		tcb_desc->use_shortgi = false;
667 }
668 
_rtl_query_protection_mode(struct ieee80211_hw * hw,struct rtl_tcb_desc * tcb_desc,struct ieee80211_tx_info * info)669 static void _rtl_query_protection_mode(struct ieee80211_hw *hw,
670 				       struct rtl_tcb_desc *tcb_desc,
671 				       struct ieee80211_tx_info *info)
672 {
673 	struct rtl_priv *rtlpriv = rtl_priv(hw);
674 	u8 rate_flag = info->control.rates[0].flags;
675 
676 	/* Common Settings */
677 	tcb_desc->rts_stbc = false;
678 	tcb_desc->cts_enable = false;
679 	tcb_desc->rts_sc = 0;
680 	tcb_desc->rts_bw = false;
681 	tcb_desc->rts_use_shortpreamble = false;
682 	tcb_desc->rts_use_shortgi = false;
683 
684 	if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) {
685 		/* Use CTS-to-SELF in protection mode. */
686 		tcb_desc->rts_enable = true;
687 		tcb_desc->cts_enable = true;
688 		tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
689 	} else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) {
690 		/* Use RTS-CTS in protection mode. */
691 		tcb_desc->rts_enable = true;
692 		tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
693 	}
694 }
695 
rtl_mrate_idx_to_arfr_id(struct ieee80211_hw * hw,u8 rate_index,enum wireless_mode wirelessmode)696 u8 rtl_mrate_idx_to_arfr_id(struct ieee80211_hw *hw, u8 rate_index,
697 			    enum wireless_mode wirelessmode)
698 {
699 	struct rtl_priv *rtlpriv = rtl_priv(hw);
700 	struct rtl_phy *rtlphy = &rtlpriv->phy;
701 	u8 ret = 0;
702 
703 	switch (rate_index) {
704 	case RATR_INX_WIRELESS_NGB:
705 		if (rtlphy->rf_type == RF_1T1R)
706 			ret = RATEID_IDX_BGN_40M_1SS;
707 		else
708 			ret = RATEID_IDX_BGN_40M_2SS;
709 		; break;
710 	case RATR_INX_WIRELESS_N:
711 	case RATR_INX_WIRELESS_NG:
712 		if (rtlphy->rf_type == RF_1T1R)
713 			ret = RATEID_IDX_GN_N1SS;
714 		else
715 			ret = RATEID_IDX_GN_N2SS;
716 		; break;
717 	case RATR_INX_WIRELESS_NB:
718 		if (rtlphy->rf_type == RF_1T1R)
719 			ret = RATEID_IDX_BGN_20M_1SS_BN;
720 		else
721 			ret = RATEID_IDX_BGN_20M_2SS_BN;
722 		; break;
723 	case RATR_INX_WIRELESS_GB:
724 		ret = RATEID_IDX_BG;
725 		break;
726 	case RATR_INX_WIRELESS_G:
727 		ret = RATEID_IDX_G;
728 		break;
729 	case RATR_INX_WIRELESS_B:
730 		ret = RATEID_IDX_B;
731 		break;
732 	case RATR_INX_WIRELESS_MC:
733 		if (wirelessmode == WIRELESS_MODE_B ||
734 		    wirelessmode == WIRELESS_MODE_G ||
735 		    wirelessmode == WIRELESS_MODE_N_24G ||
736 		    wirelessmode == WIRELESS_MODE_AC_24G)
737 			ret = RATEID_IDX_BG;
738 		else
739 			ret = RATEID_IDX_G;
740 		break;
741 	case RATR_INX_WIRELESS_AC_5N:
742 		if (rtlphy->rf_type == RF_1T1R)
743 			ret = RATEID_IDX_VHT_1SS;
744 		else
745 			ret = RATEID_IDX_VHT_2SS;
746 		break;
747 	case RATR_INX_WIRELESS_AC_24N:
748 		if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_80) {
749 			if (rtlphy->rf_type == RF_1T1R)
750 				ret = RATEID_IDX_VHT_1SS;
751 			else
752 				ret = RATEID_IDX_VHT_2SS;
753 		} else {
754 			if (rtlphy->rf_type == RF_1T1R)
755 				ret = RATEID_IDX_MIX1;
756 			else
757 				ret = RATEID_IDX_MIX2;
758 		}
759 		break;
760 	default:
761 		ret = RATEID_IDX_BGN_40M_2SS;
762 		break;
763 	}
764 	return ret;
765 }
766 EXPORT_SYMBOL(rtl_mrate_idx_to_arfr_id);
767 
_rtl_txrate_selectmode(struct ieee80211_hw * hw,struct ieee80211_sta * sta,struct rtl_tcb_desc * tcb_desc)768 static void _rtl_txrate_selectmode(struct ieee80211_hw *hw,
769 				   struct ieee80211_sta *sta,
770 				   struct rtl_tcb_desc *tcb_desc)
771 {
772 #define SET_RATE_ID(rate_id)					\
773 	({typeof(rate_id) _id = rate_id;			\
774 	  ((rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID) ?	\
775 		rtl_mrate_idx_to_arfr_id(hw, _id,		\
776 			(sta_entry ? sta_entry->wireless_mode :	\
777 			 WIRELESS_MODE_G)) :			\
778 		_id); })
779 
780 	struct rtl_priv *rtlpriv = rtl_priv(hw);
781 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
782 	struct rtl_sta_info *sta_entry = NULL;
783 	u8 ratr_index = SET_RATE_ID(RATR_INX_WIRELESS_MC);
784 
785 	if (sta) {
786 		sta_entry = (struct rtl_sta_info *) sta->drv_priv;
787 		ratr_index = sta_entry->ratr_index;
788 	}
789 	if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) {
790 		if (mac->opmode == NL80211_IFTYPE_STATION) {
791 			tcb_desc->ratr_index = 0;
792 		} else if (mac->opmode == NL80211_IFTYPE_ADHOC ||
793 				mac->opmode == NL80211_IFTYPE_MESH_POINT) {
794 			if (tcb_desc->multicast || tcb_desc->broadcast) {
795 				tcb_desc->hw_rate =
796 				    rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M];
797 				tcb_desc->use_driver_rate = 1;
798 				tcb_desc->ratr_index =
799 					SET_RATE_ID(RATR_INX_WIRELESS_MC);
800 			} else {
801 				tcb_desc->ratr_index = ratr_index;
802 			}
803 		} else if (mac->opmode == NL80211_IFTYPE_AP) {
804 			tcb_desc->ratr_index = ratr_index;
805 		}
806 	}
807 
808 	if (rtlpriv->dm.useramask) {
809 		tcb_desc->ratr_index = ratr_index;
810 		/* TODO we will differentiate adhoc and station future  */
811 		if (mac->opmode == NL80211_IFTYPE_STATION ||
812 		    mac->opmode == NL80211_IFTYPE_MESH_POINT) {
813 			tcb_desc->mac_id = 0;
814 
815 			if (sta &&
816 			    (rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID))
817 				;	/* use sta_entry->ratr_index */
818 			else if (mac->mode == WIRELESS_MODE_AC_5G)
819 				tcb_desc->ratr_index =
820 					SET_RATE_ID(RATR_INX_WIRELESS_AC_5N);
821 			else if (mac->mode == WIRELESS_MODE_AC_24G)
822 				tcb_desc->ratr_index =
823 					SET_RATE_ID(RATR_INX_WIRELESS_AC_24N);
824 			else if (mac->mode == WIRELESS_MODE_N_24G)
825 				tcb_desc->ratr_index =
826 					SET_RATE_ID(RATR_INX_WIRELESS_NGB);
827 			else if (mac->mode == WIRELESS_MODE_N_5G)
828 				tcb_desc->ratr_index =
829 					SET_RATE_ID(RATR_INX_WIRELESS_NG);
830 			else if (mac->mode & WIRELESS_MODE_G)
831 				tcb_desc->ratr_index =
832 					SET_RATE_ID(RATR_INX_WIRELESS_GB);
833 			else if (mac->mode & WIRELESS_MODE_B)
834 				tcb_desc->ratr_index =
835 					SET_RATE_ID(RATR_INX_WIRELESS_B);
836 			else if (mac->mode & WIRELESS_MODE_A)
837 				tcb_desc->ratr_index =
838 					SET_RATE_ID(RATR_INX_WIRELESS_G);
839 
840 		} else if (mac->opmode == NL80211_IFTYPE_AP ||
841 			mac->opmode == NL80211_IFTYPE_ADHOC) {
842 			if (NULL != sta) {
843 				if (sta->aid > 0)
844 					tcb_desc->mac_id = sta->aid + 1;
845 				else
846 					tcb_desc->mac_id = 1;
847 			} else {
848 				tcb_desc->mac_id = 0;
849 			}
850 		}
851 	}
852 #undef SET_RATE_ID
853 }
854 
_rtl_query_bandwidth_mode(struct ieee80211_hw * hw,struct ieee80211_sta * sta,struct rtl_tcb_desc * tcb_desc)855 static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw,
856 				      struct ieee80211_sta *sta,
857 				      struct rtl_tcb_desc *tcb_desc)
858 {
859 	struct rtl_priv *rtlpriv = rtl_priv(hw);
860 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
861 
862 	tcb_desc->packet_bw = false;
863 	if (!sta)
864 		return;
865 	if (mac->opmode == NL80211_IFTYPE_AP ||
866 	    mac->opmode == NL80211_IFTYPE_ADHOC ||
867 	    mac->opmode == NL80211_IFTYPE_MESH_POINT) {
868 		if (!(sta->deflink.ht_cap.ht_supported) ||
869 		    !(sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))
870 			return;
871 	} else if (mac->opmode == NL80211_IFTYPE_STATION) {
872 		if (!mac->bw_40 || !(sta->deflink.ht_cap.ht_supported))
873 			return;
874 	}
875 	if (tcb_desc->multicast || tcb_desc->broadcast)
876 		return;
877 
878 	/*use legency rate, shall use 20MHz */
879 	if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M])
880 		return;
881 
882 	tcb_desc->packet_bw = HT_CHANNEL_WIDTH_20_40;
883 
884 	if (rtlpriv->cfg->spec_ver & RTL_SPEC_SUPPORT_VHT) {
885 		if (mac->opmode == NL80211_IFTYPE_AP ||
886 		    mac->opmode == NL80211_IFTYPE_ADHOC ||
887 		    mac->opmode == NL80211_IFTYPE_MESH_POINT) {
888 			if (!(sta->deflink.vht_cap.vht_supported))
889 				return;
890 		} else if (mac->opmode == NL80211_IFTYPE_STATION) {
891 			if (!mac->bw_80 ||
892 			    !(sta->deflink.vht_cap.vht_supported))
893 				return;
894 		}
895 		if (tcb_desc->hw_rate <=
896 			rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15])
897 			return;
898 		tcb_desc->packet_bw = HT_CHANNEL_WIDTH_80;
899 	}
900 }
901 
_rtl_get_vht_highest_n_rate(struct ieee80211_hw * hw,struct ieee80211_sta * sta)902 static u8 _rtl_get_vht_highest_n_rate(struct ieee80211_hw *hw,
903 				      struct ieee80211_sta *sta)
904 {
905 	struct rtl_priv *rtlpriv = rtl_priv(hw);
906 	struct rtl_phy *rtlphy = &(rtlpriv->phy);
907 	u8 hw_rate;
908 	u16 tx_mcs_map = le16_to_cpu(sta->deflink.vht_cap.vht_mcs.tx_mcs_map);
909 
910 	if ((get_rf_type(rtlphy) == RF_2T2R) &&
911 	    (tx_mcs_map & 0x000c) != 0x000c) {
912 		if ((tx_mcs_map & 0x000c) >> 2 ==
913 			IEEE80211_VHT_MCS_SUPPORT_0_7)
914 			hw_rate =
915 			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS7];
916 		else if ((tx_mcs_map  & 0x000c) >> 2 ==
917 			IEEE80211_VHT_MCS_SUPPORT_0_8)
918 			hw_rate =
919 			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS8];
920 		else
921 			hw_rate =
922 			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
923 	} else {
924 		if ((tx_mcs_map  & 0x0003) ==
925 			IEEE80211_VHT_MCS_SUPPORT_0_7)
926 			hw_rate =
927 			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS7];
928 		else if ((tx_mcs_map  & 0x0003) ==
929 			IEEE80211_VHT_MCS_SUPPORT_0_8)
930 			hw_rate =
931 			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS8];
932 		else
933 			hw_rate =
934 			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
935 	}
936 
937 	return hw_rate;
938 }
939 
_rtl_get_highest_n_rate(struct ieee80211_hw * hw,struct ieee80211_sta * sta)940 static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw,
941 				  struct ieee80211_sta *sta)
942 {
943 	struct rtl_priv *rtlpriv = rtl_priv(hw);
944 	struct rtl_phy *rtlphy = &rtlpriv->phy;
945 	u8 hw_rate;
946 
947 	if (get_rf_type(rtlphy) == RF_2T2R &&
948 	    sta->deflink.ht_cap.mcs.rx_mask[1] != 0)
949 		hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15];
950 	else
951 		hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7];
952 
953 	return hw_rate;
954 }
955 
956 /* mac80211's rate_idx is like this:
957  *
958  * 2.4G band:rx_status->band == NL80211_BAND_2GHZ
959  *
960  * B/G rate:
961  * (rx_status->flag & RX_FLAG_HT) = 0,
962  * DESC_RATE1M-->DESC_RATE54M ==> idx is 0-->11,
963  *
964  * N rate:
965  * (rx_status->flag & RX_FLAG_HT) = 1,
966  * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
967  *
968  * 5G band:rx_status->band == NL80211_BAND_5GHZ
969  * A rate:
970  * (rx_status->flag & RX_FLAG_HT) = 0,
971  * DESC_RATE6M-->DESC_RATE54M ==> idx is 0-->7,
972  *
973  * N rate:
974  * (rx_status->flag & RX_FLAG_HT) = 1,
975  * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
976  *
977  * VHT rates:
978  * DESC_RATEVHT1SS_MCS0-->DESC_RATEVHT1SS_MCS9 ==> idx is 0-->9
979  * DESC_RATEVHT2SS_MCS0-->DESC_RATEVHT2SS_MCS9 ==> idx is 0-->9
980  */
rtlwifi_rate_mapping(struct ieee80211_hw * hw,bool isht,bool isvht,u8 desc_rate)981 int rtlwifi_rate_mapping(struct ieee80211_hw *hw, bool isht, bool isvht,
982 			 u8 desc_rate)
983 {
984 	int rate_idx;
985 
986 	if (isvht) {
987 		switch (desc_rate) {
988 		case DESC_RATEVHT1SS_MCS0:
989 			rate_idx = 0;
990 			break;
991 		case DESC_RATEVHT1SS_MCS1:
992 			rate_idx = 1;
993 			break;
994 		case DESC_RATEVHT1SS_MCS2:
995 			rate_idx = 2;
996 			break;
997 		case DESC_RATEVHT1SS_MCS3:
998 			rate_idx = 3;
999 			break;
1000 		case DESC_RATEVHT1SS_MCS4:
1001 			rate_idx = 4;
1002 			break;
1003 		case DESC_RATEVHT1SS_MCS5:
1004 			rate_idx = 5;
1005 			break;
1006 		case DESC_RATEVHT1SS_MCS6:
1007 			rate_idx = 6;
1008 			break;
1009 		case DESC_RATEVHT1SS_MCS7:
1010 			rate_idx = 7;
1011 			break;
1012 		case DESC_RATEVHT1SS_MCS8:
1013 			rate_idx = 8;
1014 			break;
1015 		case DESC_RATEVHT1SS_MCS9:
1016 			rate_idx = 9;
1017 			break;
1018 		case DESC_RATEVHT2SS_MCS0:
1019 			rate_idx = 0;
1020 			break;
1021 		case DESC_RATEVHT2SS_MCS1:
1022 			rate_idx = 1;
1023 			break;
1024 		case DESC_RATEVHT2SS_MCS2:
1025 			rate_idx = 2;
1026 			break;
1027 		case DESC_RATEVHT2SS_MCS3:
1028 			rate_idx = 3;
1029 			break;
1030 		case DESC_RATEVHT2SS_MCS4:
1031 			rate_idx = 4;
1032 			break;
1033 		case DESC_RATEVHT2SS_MCS5:
1034 			rate_idx = 5;
1035 			break;
1036 		case DESC_RATEVHT2SS_MCS6:
1037 			rate_idx = 6;
1038 			break;
1039 		case DESC_RATEVHT2SS_MCS7:
1040 			rate_idx = 7;
1041 			break;
1042 		case DESC_RATEVHT2SS_MCS8:
1043 			rate_idx = 8;
1044 			break;
1045 		case DESC_RATEVHT2SS_MCS9:
1046 			rate_idx = 9;
1047 			break;
1048 		default:
1049 			rate_idx = 0;
1050 			break;
1051 		}
1052 		return rate_idx;
1053 	}
1054 	if (false == isht) {
1055 		if (NL80211_BAND_2GHZ == hw->conf.chandef.chan->band) {
1056 			switch (desc_rate) {
1057 			case DESC_RATE1M:
1058 				rate_idx = 0;
1059 				break;
1060 			case DESC_RATE2M:
1061 				rate_idx = 1;
1062 				break;
1063 			case DESC_RATE5_5M:
1064 				rate_idx = 2;
1065 				break;
1066 			case DESC_RATE11M:
1067 				rate_idx = 3;
1068 				break;
1069 			case DESC_RATE6M:
1070 				rate_idx = 4;
1071 				break;
1072 			case DESC_RATE9M:
1073 				rate_idx = 5;
1074 				break;
1075 			case DESC_RATE12M:
1076 				rate_idx = 6;
1077 				break;
1078 			case DESC_RATE18M:
1079 				rate_idx = 7;
1080 				break;
1081 			case DESC_RATE24M:
1082 				rate_idx = 8;
1083 				break;
1084 			case DESC_RATE36M:
1085 				rate_idx = 9;
1086 				break;
1087 			case DESC_RATE48M:
1088 				rate_idx = 10;
1089 				break;
1090 			case DESC_RATE54M:
1091 				rate_idx = 11;
1092 				break;
1093 			default:
1094 				rate_idx = 0;
1095 				break;
1096 			}
1097 		} else {
1098 			switch (desc_rate) {
1099 			case DESC_RATE6M:
1100 				rate_idx = 0;
1101 				break;
1102 			case DESC_RATE9M:
1103 				rate_idx = 1;
1104 				break;
1105 			case DESC_RATE12M:
1106 				rate_idx = 2;
1107 				break;
1108 			case DESC_RATE18M:
1109 				rate_idx = 3;
1110 				break;
1111 			case DESC_RATE24M:
1112 				rate_idx = 4;
1113 				break;
1114 			case DESC_RATE36M:
1115 				rate_idx = 5;
1116 				break;
1117 			case DESC_RATE48M:
1118 				rate_idx = 6;
1119 				break;
1120 			case DESC_RATE54M:
1121 				rate_idx = 7;
1122 				break;
1123 			default:
1124 				rate_idx = 0;
1125 				break;
1126 			}
1127 		}
1128 	} else {
1129 		switch (desc_rate) {
1130 		case DESC_RATEMCS0:
1131 			rate_idx = 0;
1132 			break;
1133 		case DESC_RATEMCS1:
1134 			rate_idx = 1;
1135 			break;
1136 		case DESC_RATEMCS2:
1137 			rate_idx = 2;
1138 			break;
1139 		case DESC_RATEMCS3:
1140 			rate_idx = 3;
1141 			break;
1142 		case DESC_RATEMCS4:
1143 			rate_idx = 4;
1144 			break;
1145 		case DESC_RATEMCS5:
1146 			rate_idx = 5;
1147 			break;
1148 		case DESC_RATEMCS6:
1149 			rate_idx = 6;
1150 			break;
1151 		case DESC_RATEMCS7:
1152 			rate_idx = 7;
1153 			break;
1154 		case DESC_RATEMCS8:
1155 			rate_idx = 8;
1156 			break;
1157 		case DESC_RATEMCS9:
1158 			rate_idx = 9;
1159 			break;
1160 		case DESC_RATEMCS10:
1161 			rate_idx = 10;
1162 			break;
1163 		case DESC_RATEMCS11:
1164 			rate_idx = 11;
1165 			break;
1166 		case DESC_RATEMCS12:
1167 			rate_idx = 12;
1168 			break;
1169 		case DESC_RATEMCS13:
1170 			rate_idx = 13;
1171 			break;
1172 		case DESC_RATEMCS14:
1173 			rate_idx = 14;
1174 			break;
1175 		case DESC_RATEMCS15:
1176 			rate_idx = 15;
1177 			break;
1178 		default:
1179 			rate_idx = 0;
1180 			break;
1181 		}
1182 	}
1183 	return rate_idx;
1184 }
1185 EXPORT_SYMBOL(rtlwifi_rate_mapping);
1186 
_rtl_get_tx_hw_rate(struct ieee80211_hw * hw,struct ieee80211_tx_info * info)1187 static u8 _rtl_get_tx_hw_rate(struct ieee80211_hw *hw,
1188 			      struct ieee80211_tx_info *info)
1189 {
1190 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1191 	struct ieee80211_tx_rate *r = &info->status.rates[0];
1192 	struct ieee80211_rate *txrate;
1193 	u8 hw_value = 0x0;
1194 
1195 	if (r->flags & IEEE80211_TX_RC_MCS) {
1196 		/* HT MCS0-15 */
1197 		hw_value = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15] - 15 +
1198 			   r->idx;
1199 	} else if (r->flags & IEEE80211_TX_RC_VHT_MCS) {
1200 		/* VHT MCS0-9, NSS */
1201 		if (ieee80211_rate_get_vht_nss(r) == 2)
1202 			hw_value = rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
1203 		else
1204 			hw_value = rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
1205 
1206 		hw_value = hw_value - 9 + ieee80211_rate_get_vht_mcs(r);
1207 	} else {
1208 		/* legacy */
1209 		txrate = ieee80211_get_tx_rate(hw, info);
1210 
1211 		if (txrate)
1212 			hw_value = txrate->hw_value;
1213 	}
1214 
1215 	/* check 5G band */
1216 	if (rtlpriv->rtlhal.current_bandtype == BAND_ON_5G &&
1217 	    hw_value < rtlpriv->cfg->maps[RTL_RC_OFDM_RATE6M])
1218 		hw_value = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE6M];
1219 
1220 	return hw_value;
1221 }
1222 
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)1223 void rtl_get_tcb_desc(struct ieee80211_hw *hw,
1224 		      struct ieee80211_tx_info *info,
1225 		      struct ieee80211_sta *sta,
1226 		      struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc)
1227 {
1228 #define SET_RATE_ID(rate_id)					\
1229 	({typeof(rate_id) _id = rate_id;			\
1230 	  ((rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID) ?	\
1231 		rtl_mrate_idx_to_arfr_id(hw, _id,		\
1232 			(sta_entry ? sta_entry->wireless_mode :	\
1233 			 WIRELESS_MODE_G)) :			\
1234 		_id); })
1235 
1236 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1237 	struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
1238 	struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1239 	struct rtl_sta_info *sta_entry =
1240 		(sta ? (struct rtl_sta_info *)sta->drv_priv : NULL);
1241 
1242 	__le16 fc = rtl_get_fc(skb);
1243 
1244 	tcb_desc->hw_rate = _rtl_get_tx_hw_rate(hw, info);
1245 
1246 	if (rtl_is_tx_report_skb(hw, skb))
1247 		tcb_desc->use_spe_rpt = 1;
1248 
1249 	if (ieee80211_is_data(fc)) {
1250 		/*
1251 		 *we set data rate INX 0
1252 		 *in rtl_rc.c   if skb is special data or
1253 		 *mgt which need low data rate.
1254 		 */
1255 
1256 		/*
1257 		 *So tcb_desc->hw_rate is just used for
1258 		 *special data and mgt frames
1259 		 */
1260 		if (info->control.rates[0].idx == 0 ||
1261 				ieee80211_is_nullfunc(fc)) {
1262 			tcb_desc->use_driver_rate = true;
1263 			tcb_desc->ratr_index =
1264 					SET_RATE_ID(RATR_INX_WIRELESS_MC);
1265 
1266 			tcb_desc->disable_ratefallback = 1;
1267 		} else {
1268 			/*
1269 			 *because hw will nerver use hw_rate
1270 			 *when tcb_desc->use_driver_rate = false
1271 			 *so we never set highest N rate here,
1272 			 *and N rate will all be controlled by FW
1273 			 *when tcb_desc->use_driver_rate = false
1274 			 */
1275 			if (sta && sta->deflink.vht_cap.vht_supported) {
1276 				tcb_desc->hw_rate =
1277 				_rtl_get_vht_highest_n_rate(hw, sta);
1278 			} else {
1279 				if (sta && sta->deflink.ht_cap.ht_supported) {
1280 					tcb_desc->hw_rate =
1281 						_rtl_get_highest_n_rate(hw, sta);
1282 				} else {
1283 					if (rtlmac->mode == WIRELESS_MODE_B) {
1284 						tcb_desc->hw_rate =
1285 						    rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M];
1286 					} else {
1287 						tcb_desc->hw_rate =
1288 						    rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M];
1289 					}
1290 				}
1291 			}
1292 		}
1293 
1294 		if (is_multicast_ether_addr(hdr->addr1))
1295 			tcb_desc->multicast = 1;
1296 		else if (is_broadcast_ether_addr(hdr->addr1))
1297 			tcb_desc->broadcast = 1;
1298 
1299 		_rtl_txrate_selectmode(hw, sta, tcb_desc);
1300 		_rtl_query_bandwidth_mode(hw, sta, tcb_desc);
1301 		_rtl_qurey_shortpreamble_mode(hw, tcb_desc, info);
1302 		_rtl_query_shortgi(hw, sta, tcb_desc, info);
1303 		_rtl_query_protection_mode(hw, tcb_desc, info);
1304 	} else {
1305 		tcb_desc->use_driver_rate = true;
1306 		tcb_desc->ratr_index = SET_RATE_ID(RATR_INX_WIRELESS_MC);
1307 		tcb_desc->disable_ratefallback = 1;
1308 		tcb_desc->mac_id = 0;
1309 		tcb_desc->packet_bw = false;
1310 	}
1311 #undef SET_RATE_ID
1312 }
1313 EXPORT_SYMBOL(rtl_get_tcb_desc);
1314 
rtl_tx_mgmt_proc(struct ieee80211_hw * hw,struct sk_buff * skb)1315 bool rtl_tx_mgmt_proc(struct ieee80211_hw *hw, struct sk_buff *skb)
1316 {
1317 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1318 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1319 	__le16 fc = rtl_get_fc(skb);
1320 
1321 	if (rtlpriv->dm.supp_phymode_switch &&
1322 	    mac->link_state < MAC80211_LINKED &&
1323 	    (ieee80211_is_auth(fc) || ieee80211_is_probe_req(fc))) {
1324 		if (rtlpriv->cfg->ops->chk_switch_dmdp)
1325 			rtlpriv->cfg->ops->chk_switch_dmdp(hw);
1326 	}
1327 	if (ieee80211_is_auth(fc)) {
1328 		rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n");
1329 
1330 		mac->link_state = MAC80211_LINKING;
1331 		/* Dul mac */
1332 		rtlpriv->phy.need_iqk = true;
1333 
1334 	}
1335 
1336 	return true;
1337 }
1338 EXPORT_SYMBOL_GPL(rtl_tx_mgmt_proc);
1339 
1340 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw, u8 *sa,
1341 				u8 *bssid, u16 tid);
1342 
process_agg_start(struct ieee80211_hw * hw,struct ieee80211_hdr * hdr,u16 tid)1343 static void process_agg_start(struct ieee80211_hw *hw,
1344 			      struct ieee80211_hdr *hdr, u16 tid)
1345 {
1346 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1347 	struct ieee80211_rx_status rx_status = { 0 };
1348 	struct sk_buff *skb_delba = NULL;
1349 
1350 	skb_delba = rtl_make_del_ba(hw, hdr->addr2, hdr->addr3, tid);
1351 	if (skb_delba) {
1352 		rx_status.freq = hw->conf.chandef.chan->center_freq;
1353 		rx_status.band = hw->conf.chandef.chan->band;
1354 		rx_status.flag |= RX_FLAG_DECRYPTED;
1355 		rx_status.flag |= RX_FLAG_MACTIME_START;
1356 		rx_status.rate_idx = 0;
1357 		rx_status.signal = 50 + 10;
1358 		memcpy(IEEE80211_SKB_RXCB(skb_delba),
1359 		       &rx_status, sizeof(rx_status));
1360 		RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG,
1361 			      "fake del\n",
1362 			      skb_delba->data,
1363 			      skb_delba->len);
1364 		ieee80211_rx_irqsafe(hw, skb_delba);
1365 	}
1366 }
1367 
rtl_action_proc(struct ieee80211_hw * hw,struct sk_buff * skb,u8 is_tx)1368 bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
1369 {
1370 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1371 	struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1372 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1373 	__le16 fc = rtl_get_fc(skb);
1374 	u8 *act = (u8 *)(((u8 *)skb->data + MAC80211_3ADDR_LEN));
1375 	u8 category;
1376 
1377 	if (!ieee80211_is_action(fc))
1378 		return true;
1379 
1380 	category = *act;
1381 	act++;
1382 	switch (category) {
1383 	case ACT_CAT_BA:
1384 		switch (*act) {
1385 		case ACT_ADDBAREQ:
1386 			if (mac->act_scanning)
1387 				return false;
1388 
1389 			rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1390 				"%s ACT_ADDBAREQ From :%pM\n",
1391 				is_tx ? "Tx" : "Rx", hdr->addr2);
1392 			RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, "req\n",
1393 				skb->data, skb->len);
1394 			if (!is_tx) {
1395 				struct ieee80211_sta *sta = NULL;
1396 				struct rtl_sta_info *sta_entry = NULL;
1397 				struct rtl_tid_data *tid_data;
1398 				struct ieee80211_mgmt *mgmt = (void *)skb->data;
1399 				u16 capab = 0, tid = 0;
1400 
1401 				rcu_read_lock();
1402 				sta = rtl_find_sta(hw, hdr->addr3);
1403 				if (sta == NULL) {
1404 					rtl_dbg(rtlpriv, COMP_SEND | COMP_RECV,
1405 						DBG_DMESG, "sta is NULL\n");
1406 					rcu_read_unlock();
1407 					return true;
1408 				}
1409 
1410 				sta_entry =
1411 					(struct rtl_sta_info *)sta->drv_priv;
1412 				if (!sta_entry) {
1413 					rcu_read_unlock();
1414 					return true;
1415 				}
1416 				capab =
1417 				  le16_to_cpu(mgmt->u.action.u.addba_req.capab);
1418 				tid = (capab &
1419 				       IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
1420 				if (tid >= MAX_TID_COUNT) {
1421 					rcu_read_unlock();
1422 					return true;
1423 				}
1424 				tid_data = &sta_entry->tids[tid];
1425 				if (tid_data->agg.rx_agg_state ==
1426 				    RTL_RX_AGG_START)
1427 					process_agg_start(hw, hdr, tid);
1428 				rcu_read_unlock();
1429 			}
1430 			break;
1431 		case ACT_ADDBARSP:
1432 			rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1433 				"%s ACT_ADDBARSP From :%pM\n",
1434 				is_tx ? "Tx" : "Rx", hdr->addr2);
1435 			break;
1436 		case ACT_DELBA:
1437 			rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1438 				"ACT_ADDBADEL From :%pM\n", hdr->addr2);
1439 			break;
1440 		}
1441 		break;
1442 	default:
1443 		break;
1444 	}
1445 
1446 	return true;
1447 }
1448 EXPORT_SYMBOL_GPL(rtl_action_proc);
1449 
setup_special_tx(struct rtl_priv * rtlpriv,struct rtl_ps_ctl * ppsc,int type)1450 static void setup_special_tx(struct rtl_priv *rtlpriv, struct rtl_ps_ctl *ppsc,
1451 			     int type)
1452 {
1453 	struct ieee80211_hw *hw = rtlpriv->hw;
1454 
1455 	rtlpriv->ra.is_special_data = true;
1456 	if (rtlpriv->cfg->ops->get_btc_status())
1457 		rtlpriv->btcoexist.btc_ops->btc_special_packet_notify(
1458 					rtlpriv, type);
1459 	rtl_lps_leave(hw, false);
1460 	ppsc->last_delaylps_stamp_jiffies = jiffies;
1461 }
1462 
rtl_skb_ether_type_ptr(struct ieee80211_hw * hw,struct sk_buff * skb,bool is_enc)1463 static const u8 *rtl_skb_ether_type_ptr(struct ieee80211_hw *hw,
1464 					struct sk_buff *skb, bool is_enc)
1465 {
1466 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1467 	u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb);
1468 	u8 encrypt_header_len = 0;
1469 	u8 offset;
1470 
1471 	switch (rtlpriv->sec.pairwise_enc_algorithm) {
1472 	case WEP40_ENCRYPTION:
1473 	case WEP104_ENCRYPTION:
1474 		encrypt_header_len = 4;/*WEP_IV_LEN*/
1475 		break;
1476 	case TKIP_ENCRYPTION:
1477 		encrypt_header_len = 8;/*TKIP_IV_LEN*/
1478 		break;
1479 	case AESCCMP_ENCRYPTION:
1480 		encrypt_header_len = 8;/*CCMP_HDR_LEN;*/
1481 		break;
1482 	default:
1483 		break;
1484 	}
1485 
1486 	offset = mac_hdr_len + SNAP_SIZE;
1487 	if (is_enc)
1488 		offset += encrypt_header_len;
1489 
1490 	return skb->data + offset;
1491 }
1492 
1493 /*should call before software enc*/
rtl_is_special_data(struct ieee80211_hw * hw,struct sk_buff * skb,u8 is_tx,bool is_enc)1494 u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx,
1495 		       bool is_enc)
1496 {
1497 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1498 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1499 	__le16 fc = rtl_get_fc(skb);
1500 	u16 ether_type;
1501 	const u8 *ether_type_ptr;
1502 	const struct iphdr *ip;
1503 
1504 	if (!ieee80211_is_data(fc))
1505 		goto end;
1506 
1507 	ether_type_ptr = rtl_skb_ether_type_ptr(hw, skb, is_enc);
1508 	ether_type = be16_to_cpup((__be16 *)ether_type_ptr);
1509 
1510 	if (ETH_P_IP == ether_type) {
1511 		ip = (struct iphdr *)((u8 *)ether_type_ptr +
1512 		     PROTOC_TYPE_SIZE);
1513 		if (IPPROTO_UDP == ip->protocol) {
1514 			struct udphdr *udp = (struct udphdr *)((u8 *)ip +
1515 							       (ip->ihl << 2));
1516 			if (((((u8 *)udp)[1] == 68) &&
1517 			     (((u8 *)udp)[3] == 67)) ||
1518 			    ((((u8 *)udp)[1] == 67) &&
1519 			     (((u8 *)udp)[3] == 68))) {
1520 				/* 68 : UDP BOOTP client
1521 				 * 67 : UDP BOOTP server
1522 				 */
1523 				rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV),
1524 					DBG_DMESG, "dhcp %s !!\n",
1525 					(is_tx) ? "Tx" : "Rx");
1526 
1527 				if (is_tx)
1528 					setup_special_tx(rtlpriv, ppsc,
1529 							 PACKET_DHCP);
1530 
1531 				return true;
1532 			}
1533 		}
1534 	} else if (ETH_P_ARP == ether_type) {
1535 		if (is_tx)
1536 			setup_special_tx(rtlpriv, ppsc, PACKET_ARP);
1537 
1538 		return true;
1539 	} else if (ETH_P_PAE == ether_type) {
1540 		/* EAPOL is seens as in-4way */
1541 		rtlpriv->btcoexist.btc_info.in_4way = true;
1542 		rtlpriv->btcoexist.btc_info.in_4way_ts = jiffies;
1543 
1544 		rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1545 			"802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx");
1546 
1547 		if (is_tx) {
1548 			rtlpriv->ra.is_special_data = true;
1549 			rtl_lps_leave(hw, false);
1550 			ppsc->last_delaylps_stamp_jiffies = jiffies;
1551 
1552 			setup_special_tx(rtlpriv, ppsc, PACKET_EAPOL);
1553 		}
1554 
1555 		return true;
1556 	} else if (ETH_P_IPV6 == ether_type) {
1557 		/* TODO: Handle any IPv6 cases that need special handling.
1558 		 * For now, always return false
1559 		 */
1560 		goto end;
1561 	}
1562 
1563 end:
1564 	rtlpriv->ra.is_special_data = false;
1565 	return false;
1566 }
1567 EXPORT_SYMBOL_GPL(rtl_is_special_data);
1568 
rtl_tx_ackqueue(struct ieee80211_hw * hw,struct sk_buff * skb)1569 void rtl_tx_ackqueue(struct ieee80211_hw *hw, struct sk_buff *skb)
1570 {
1571 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1572 	struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1573 
1574 	__skb_queue_tail(&tx_report->queue, skb);
1575 }
1576 EXPORT_SYMBOL_GPL(rtl_tx_ackqueue);
1577 
rtl_tx_status(struct ieee80211_hw * hw,struct sk_buff * skb,bool ack)1578 static void rtl_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb,
1579 			  bool ack)
1580 {
1581 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1582 	struct ieee80211_tx_info *info;
1583 
1584 	info = IEEE80211_SKB_CB(skb);
1585 	ieee80211_tx_info_clear_status(info);
1586 	if (ack) {
1587 		rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_LOUD,
1588 			"tx report: ack\n");
1589 		info->flags |= IEEE80211_TX_STAT_ACK;
1590 	} else {
1591 		rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_LOUD,
1592 			"tx report: not ack\n");
1593 		info->flags &= ~IEEE80211_TX_STAT_ACK;
1594 	}
1595 	ieee80211_tx_status_irqsafe(hw, skb);
1596 }
1597 
rtl_is_tx_report_skb(struct ieee80211_hw * hw,struct sk_buff * skb)1598 bool rtl_is_tx_report_skb(struct ieee80211_hw *hw, struct sk_buff *skb)
1599 {
1600 	u16 ether_type;
1601 	const u8 *ether_type_ptr;
1602 	__le16 fc = rtl_get_fc(skb);
1603 
1604 	ether_type_ptr = rtl_skb_ether_type_ptr(hw, skb, true);
1605 	ether_type = be16_to_cpup((__be16 *)ether_type_ptr);
1606 
1607 	if (ether_type == ETH_P_PAE || ieee80211_is_nullfunc(fc))
1608 		return true;
1609 
1610 	return false;
1611 }
1612 
rtl_get_tx_report_sn(struct ieee80211_hw * hw,struct rtlwifi_tx_info * tx_info)1613 static u16 rtl_get_tx_report_sn(struct ieee80211_hw *hw,
1614 				struct rtlwifi_tx_info *tx_info)
1615 {
1616 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1617 	struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1618 	u16 sn;
1619 
1620 	/* SW_DEFINE[11:8] are reserved (driver fills zeros)
1621 	 * SW_DEFINE[7:2] are used by driver
1622 	 * SW_DEFINE[1:0] are reserved for firmware (driver fills zeros)
1623 	 */
1624 	sn = (atomic_inc_return(&tx_report->sn) & 0x003F) << 2;
1625 
1626 	tx_report->last_sent_sn = sn;
1627 	tx_report->last_sent_time = jiffies;
1628 	tx_info->sn = sn;
1629 	tx_info->send_time = tx_report->last_sent_time;
1630 	rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_DMESG,
1631 		"Send TX-Report sn=0x%X\n", sn);
1632 
1633 	return sn;
1634 }
1635 
rtl_set_tx_report(struct rtl_tcb_desc * ptcb_desc,u8 * pdesc,struct ieee80211_hw * hw,struct rtlwifi_tx_info * tx_info)1636 void rtl_set_tx_report(struct rtl_tcb_desc *ptcb_desc, u8 *pdesc,
1637 		       struct ieee80211_hw *hw, struct rtlwifi_tx_info *tx_info)
1638 {
1639 	if (ptcb_desc->use_spe_rpt) {
1640 		u16 sn = rtl_get_tx_report_sn(hw, tx_info);
1641 
1642 		SET_TX_DESC_SPE_RPT(pdesc, 1);
1643 		SET_TX_DESC_SW_DEFINE(pdesc, sn);
1644 	}
1645 }
1646 EXPORT_SYMBOL_GPL(rtl_set_tx_report);
1647 
rtl_tx_report_handler(struct ieee80211_hw * hw,u8 * tmp_buf,u8 c2h_cmd_len)1648 void rtl_tx_report_handler(struct ieee80211_hw *hw, u8 *tmp_buf, u8 c2h_cmd_len)
1649 {
1650 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1651 	struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1652 	struct rtlwifi_tx_info *tx_info;
1653 	struct sk_buff_head *queue = &tx_report->queue;
1654 	struct sk_buff *skb;
1655 	u16 sn;
1656 	u8 st, retry;
1657 
1658 	if (rtlpriv->cfg->spec_ver & RTL_SPEC_EXT_C2H) {
1659 		sn = GET_TX_REPORT_SN_V2(tmp_buf);
1660 		st = GET_TX_REPORT_ST_V2(tmp_buf);
1661 		retry = GET_TX_REPORT_RETRY_V2(tmp_buf);
1662 	} else {
1663 		sn = GET_TX_REPORT_SN_V1(tmp_buf);
1664 		st = GET_TX_REPORT_ST_V1(tmp_buf);
1665 		retry = GET_TX_REPORT_RETRY_V1(tmp_buf);
1666 	}
1667 
1668 	tx_report->last_recv_sn = sn;
1669 
1670 	skb_queue_walk(queue, skb) {
1671 		tx_info = rtl_tx_skb_cb_info(skb);
1672 		if (tx_info->sn == sn) {
1673 			skb_unlink(skb, queue);
1674 			rtl_tx_status(hw, skb, st == 0);
1675 			break;
1676 		}
1677 	}
1678 	rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_DMESG,
1679 		"Recv TX-Report st=0x%02X sn=0x%X retry=0x%X\n",
1680 		st, sn, retry);
1681 }
1682 EXPORT_SYMBOL_GPL(rtl_tx_report_handler);
1683 
rtl_check_tx_report_acked(struct ieee80211_hw * hw)1684 bool rtl_check_tx_report_acked(struct ieee80211_hw *hw)
1685 {
1686 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1687 	struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1688 
1689 	if (tx_report->last_sent_sn == tx_report->last_recv_sn)
1690 		return true;
1691 
1692 	if (time_before(tx_report->last_sent_time + 3 * HZ, jiffies)) {
1693 		rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_WARNING,
1694 			"Check TX-Report timeout!! s_sn=0x%X r_sn=0x%X\n",
1695 			tx_report->last_sent_sn, tx_report->last_recv_sn);
1696 		return true;	/* 3 sec. (timeout) seen as acked */
1697 	}
1698 
1699 	return false;
1700 }
1701 
rtl_wait_tx_report_acked(struct ieee80211_hw * hw,u32 wait_ms)1702 void rtl_wait_tx_report_acked(struct ieee80211_hw *hw, u32 wait_ms)
1703 {
1704 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1705 	int i;
1706 
1707 	for (i = 0; i < wait_ms; i++) {
1708 		if (rtl_check_tx_report_acked(hw))
1709 			break;
1710 		usleep_range(1000, 2000);
1711 		rtl_dbg(rtlpriv, COMP_SEC, DBG_DMESG,
1712 			"Wait 1ms (%d/%d) to disable key.\n", i, wait_ms);
1713 	}
1714 }
1715 
rtl_get_hal_edca_param(struct ieee80211_hw * hw,struct ieee80211_vif * vif,enum wireless_mode wirelessmode,struct ieee80211_tx_queue_params * param)1716 u32 rtl_get_hal_edca_param(struct ieee80211_hw *hw,
1717 			   struct ieee80211_vif *vif,
1718 			   enum wireless_mode wirelessmode,
1719 			   struct ieee80211_tx_queue_params *param)
1720 {
1721 	u32 reg = 0;
1722 	u8 sifstime = 10;
1723 	u8 slottime = 20;
1724 
1725 	/* AIFS = AIFSN * slot time + SIFS */
1726 	switch (wirelessmode) {
1727 	case WIRELESS_MODE_A:
1728 	case WIRELESS_MODE_N_24G:
1729 	case WIRELESS_MODE_N_5G:
1730 	case WIRELESS_MODE_AC_5G:
1731 	case WIRELESS_MODE_AC_24G:
1732 		sifstime = 16;
1733 		slottime = 9;
1734 		break;
1735 	case WIRELESS_MODE_G:
1736 		slottime = (vif->bss_conf.use_short_slot ? 9 : 20);
1737 		break;
1738 	default:
1739 		break;
1740 	}
1741 
1742 	reg |= (param->txop & 0x7FF) << 16;
1743 	reg |= (fls(param->cw_max) & 0xF) << 12;
1744 	reg |= (fls(param->cw_min) & 0xF) << 8;
1745 	reg |= (param->aifs & 0x0F) * slottime + sifstime;
1746 
1747 	return reg;
1748 }
1749 EXPORT_SYMBOL_GPL(rtl_get_hal_edca_param);
1750 
1751 /*********************************************************
1752  *
1753  * functions called by core.c
1754  *
1755  *********************************************************/
rtl_tx_agg_start(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u16 tid,u16 * ssn)1756 int rtl_tx_agg_start(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1757 		     struct ieee80211_sta *sta, u16 tid, u16 *ssn)
1758 {
1759 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1760 	struct rtl_tid_data *tid_data;
1761 	struct rtl_sta_info *sta_entry = NULL;
1762 
1763 	if (sta == NULL)
1764 		return -EINVAL;
1765 
1766 	if (unlikely(tid >= MAX_TID_COUNT))
1767 		return -EINVAL;
1768 
1769 	sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1770 	if (!sta_entry)
1771 		return -ENXIO;
1772 	tid_data = &sta_entry->tids[tid];
1773 
1774 	rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG,
1775 		"on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1776 		*ssn);
1777 
1778 	tid_data->agg.agg_state = RTL_AGG_START;
1779 
1780 	return IEEE80211_AMPDU_TX_START_IMMEDIATE;
1781 }
1782 
rtl_tx_agg_stop(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u16 tid)1783 int rtl_tx_agg_stop(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1784 		    struct ieee80211_sta *sta, u16 tid)
1785 {
1786 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1787 	struct rtl_sta_info *sta_entry = NULL;
1788 
1789 	if (sta == NULL)
1790 		return -EINVAL;
1791 
1792 	rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG,
1793 		"on ra = %pM tid = %d\n", sta->addr, tid);
1794 
1795 	if (unlikely(tid >= MAX_TID_COUNT))
1796 		return -EINVAL;
1797 
1798 	sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1799 	sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP;
1800 
1801 	ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1802 	return 0;
1803 }
1804 
rtl_rx_agg_start(struct ieee80211_hw * hw,struct ieee80211_sta * sta,u16 tid)1805 int rtl_rx_agg_start(struct ieee80211_hw *hw,
1806 		     struct ieee80211_sta *sta, u16 tid)
1807 {
1808 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1809 	struct rtl_tid_data *tid_data;
1810 	struct rtl_sta_info *sta_entry = NULL;
1811 	u8 reject_agg;
1812 
1813 	if (sta == NULL)
1814 		return -EINVAL;
1815 
1816 	if (unlikely(tid >= MAX_TID_COUNT))
1817 		return -EINVAL;
1818 
1819 	if (rtlpriv->cfg->ops->get_btc_status()) {
1820 		rtlpriv->btcoexist.btc_ops->btc_get_ampdu_cfg(rtlpriv,
1821 							      &reject_agg,
1822 							      NULL, NULL);
1823 		if (reject_agg)
1824 			return -EINVAL;
1825 	}
1826 
1827 	sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1828 	if (!sta_entry)
1829 		return -ENXIO;
1830 	tid_data = &sta_entry->tids[tid];
1831 
1832 	rtl_dbg(rtlpriv, COMP_RECV, DBG_DMESG,
1833 		"on ra = %pM tid = %d\n", sta->addr, tid);
1834 
1835 	tid_data->agg.rx_agg_state = RTL_RX_AGG_START;
1836 	return 0;
1837 }
1838 
rtl_rx_agg_stop(struct ieee80211_hw * hw,struct ieee80211_sta * sta,u16 tid)1839 int rtl_rx_agg_stop(struct ieee80211_hw *hw,
1840 		    struct ieee80211_sta *sta, u16 tid)
1841 {
1842 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1843 	struct rtl_sta_info *sta_entry = NULL;
1844 
1845 	if (sta == NULL)
1846 		return -EINVAL;
1847 
1848 	rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG,
1849 		"on ra = %pM tid = %d\n", sta->addr, tid);
1850 
1851 	if (unlikely(tid >= MAX_TID_COUNT))
1852 		return -EINVAL;
1853 
1854 	sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1855 	sta_entry->tids[tid].agg.rx_agg_state = RTL_RX_AGG_STOP;
1856 
1857 	return 0;
1858 }
1859 
rtl_tx_agg_oper(struct ieee80211_hw * hw,struct ieee80211_sta * sta,u16 tid)1860 int rtl_tx_agg_oper(struct ieee80211_hw *hw,
1861 		struct ieee80211_sta *sta, u16 tid)
1862 {
1863 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1864 	struct rtl_sta_info *sta_entry = NULL;
1865 
1866 	if (sta == NULL)
1867 		return -EINVAL;
1868 
1869 	rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG,
1870 		"on ra = %pM tid = %d\n", sta->addr, tid);
1871 
1872 	if (unlikely(tid >= MAX_TID_COUNT))
1873 		return -EINVAL;
1874 
1875 	sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1876 	sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL;
1877 
1878 	return 0;
1879 }
1880 
rtl_rx_ampdu_apply(struct rtl_priv * rtlpriv)1881 void rtl_rx_ampdu_apply(struct rtl_priv *rtlpriv)
1882 {
1883 	struct rtl_btc_ops *btc_ops = rtlpriv->btcoexist.btc_ops;
1884 	u8 reject_agg = 0, ctrl_agg_size = 0, agg_size = 0;
1885 
1886 	if (rtlpriv->cfg->ops->get_btc_status())
1887 		btc_ops->btc_get_ampdu_cfg(rtlpriv, &reject_agg,
1888 					   &ctrl_agg_size, &agg_size);
1889 
1890 	rtl_dbg(rtlpriv, COMP_BT_COEXIST, DBG_DMESG,
1891 		"Set RX AMPDU: coex - reject=%d, ctrl_agg_size=%d, size=%d",
1892 		reject_agg, ctrl_agg_size, agg_size);
1893 
1894 	rtlpriv->hw->max_rx_aggregation_subframes =
1895 		(ctrl_agg_size ? agg_size : IEEE80211_MAX_AMPDU_BUF_HT);
1896 }
1897 EXPORT_SYMBOL(rtl_rx_ampdu_apply);
1898 
1899 /*********************************************************
1900  *
1901  * wq & timer callback functions
1902  *
1903  *********************************************************/
1904 /* this function is used for roaming */
rtl_beacon_statistic(struct ieee80211_hw * hw,struct sk_buff * skb)1905 void rtl_beacon_statistic(struct ieee80211_hw *hw, struct sk_buff *skb)
1906 {
1907 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1908 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1909 
1910 	if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION)
1911 		return;
1912 
1913 	if (rtlpriv->mac80211.link_state < MAC80211_LINKED)
1914 		return;
1915 
1916 	/* check if this really is a beacon */
1917 	if (!ieee80211_is_beacon(hdr->frame_control) &&
1918 	    !ieee80211_is_probe_resp(hdr->frame_control))
1919 		return;
1920 
1921 	/* min. beacon length + FCS_LEN */
1922 	if (skb->len <= 40 + FCS_LEN)
1923 		return;
1924 
1925 	/* and only beacons from the associated BSSID, please */
1926 	if (!ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid))
1927 		return;
1928 
1929 	rtlpriv->link_info.bcn_rx_inperiod++;
1930 }
1931 EXPORT_SYMBOL_GPL(rtl_beacon_statistic);
1932 
rtl_free_entries_from_scan_list(struct ieee80211_hw * hw)1933 static void rtl_free_entries_from_scan_list(struct ieee80211_hw *hw)
1934 {
1935 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1936 	struct rtl_bssid_entry *entry, *next;
1937 
1938 	list_for_each_entry_safe(entry, next, &rtlpriv->scan_list.list, list) {
1939 		list_del(&entry->list);
1940 		kfree(entry);
1941 		rtlpriv->scan_list.num--;
1942 	}
1943 }
1944 
rtl_free_entries_from_ack_queue(struct ieee80211_hw * hw,bool chk_timeout)1945 static void rtl_free_entries_from_ack_queue(struct ieee80211_hw *hw,
1946 					    bool chk_timeout)
1947 {
1948 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1949 	struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1950 	struct sk_buff_head *queue = &tx_report->queue;
1951 	struct sk_buff *skb, *tmp;
1952 	struct rtlwifi_tx_info *tx_info;
1953 
1954 	skb_queue_walk_safe(queue, skb, tmp) {
1955 		tx_info = rtl_tx_skb_cb_info(skb);
1956 		if (chk_timeout &&
1957 		    time_after(tx_info->send_time + HZ, jiffies))
1958 			continue;
1959 		skb_unlink(skb, queue);
1960 		rtl_tx_status(hw, skb, false);
1961 	}
1962 }
1963 
rtl_scan_list_expire(struct ieee80211_hw * hw)1964 void rtl_scan_list_expire(struct ieee80211_hw *hw)
1965 {
1966 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1967 	struct rtl_bssid_entry *entry, *next;
1968 	unsigned long flags;
1969 
1970 	spin_lock_irqsave(&rtlpriv->locks.scan_list_lock, flags);
1971 
1972 	list_for_each_entry_safe(entry, next, &rtlpriv->scan_list.list, list) {
1973 		/* 180 seconds */
1974 		if (jiffies_to_msecs(jiffies - entry->age) < 180000)
1975 			continue;
1976 
1977 		list_del(&entry->list);
1978 		rtlpriv->scan_list.num--;
1979 
1980 		rtl_dbg(rtlpriv, COMP_SCAN, DBG_LOUD,
1981 			"BSSID=%pM is expire in scan list (total=%d)\n",
1982 			entry->bssid, rtlpriv->scan_list.num);
1983 		kfree(entry);
1984 	}
1985 
1986 	spin_unlock_irqrestore(&rtlpriv->locks.scan_list_lock, flags);
1987 
1988 	rtlpriv->btcoexist.btc_info.ap_num = rtlpriv->scan_list.num;
1989 }
1990 
rtl_collect_scan_list(struct ieee80211_hw * hw,struct sk_buff * skb)1991 void rtl_collect_scan_list(struct ieee80211_hw *hw, struct sk_buff *skb)
1992 {
1993 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1994 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1995 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1996 	unsigned long flags;
1997 
1998 	struct rtl_bssid_entry *entry = NULL, *iter;
1999 
2000 	/* check if it is scanning */
2001 	if (!mac->act_scanning)
2002 		return;
2003 
2004 	/* check if this really is a beacon */
2005 	if (!ieee80211_is_beacon(hdr->frame_control) &&
2006 	    !ieee80211_is_probe_resp(hdr->frame_control))
2007 		return;
2008 
2009 	spin_lock_irqsave(&rtlpriv->locks.scan_list_lock, flags);
2010 
2011 	list_for_each_entry(iter, &rtlpriv->scan_list.list, list) {
2012 		if (memcmp(iter->bssid, hdr->addr3, ETH_ALEN) == 0) {
2013 			list_del_init(&iter->list);
2014 			entry = iter;
2015 			rtl_dbg(rtlpriv, COMP_SCAN, DBG_LOUD,
2016 				"Update BSSID=%pM to scan list (total=%d)\n",
2017 				hdr->addr3, rtlpriv->scan_list.num);
2018 			break;
2019 		}
2020 	}
2021 
2022 	if (!entry) {
2023 		entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
2024 
2025 		if (!entry)
2026 			goto label_err;
2027 
2028 		memcpy(entry->bssid, hdr->addr3, ETH_ALEN);
2029 		rtlpriv->scan_list.num++;
2030 
2031 		rtl_dbg(rtlpriv, COMP_SCAN, DBG_LOUD,
2032 			"Add BSSID=%pM to scan list (total=%d)\n",
2033 			hdr->addr3, rtlpriv->scan_list.num);
2034 	}
2035 
2036 	entry->age = jiffies;
2037 
2038 	list_add_tail(&entry->list, &rtlpriv->scan_list.list);
2039 
2040 label_err:
2041 	spin_unlock_irqrestore(&rtlpriv->locks.scan_list_lock, flags);
2042 }
2043 EXPORT_SYMBOL(rtl_collect_scan_list);
2044 
rtl_watchdog_wq_callback(struct work_struct * work)2045 static void rtl_watchdog_wq_callback(struct work_struct *work)
2046 {
2047 	struct rtl_works *rtlworks = container_of(work, struct rtl_works,
2048 						  watchdog_wq.work);
2049 	struct ieee80211_hw *hw = rtlworks->hw;
2050 	struct rtl_priv *rtlpriv = rtl_priv(hw);
2051 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
2052 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
2053 	bool busytraffic = false;
2054 	bool tx_busy_traffic = false;
2055 	bool rx_busy_traffic = false;
2056 	bool higher_busytraffic = false;
2057 	bool higher_busyrxtraffic = false;
2058 	u8 idx, tid;
2059 	u32 rx_cnt_inp4eriod = 0;
2060 	u32 tx_cnt_inp4eriod = 0;
2061 	u32 aver_rx_cnt_inperiod = 0;
2062 	u32 aver_tx_cnt_inperiod = 0;
2063 	u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0};
2064 	u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0};
2065 
2066 	if (is_hal_stop(rtlhal))
2067 		return;
2068 
2069 	/* <1> Determine if action frame is allowed */
2070 	if (mac->link_state > MAC80211_NOLINK) {
2071 		if (mac->cnt_after_linked < 20)
2072 			mac->cnt_after_linked++;
2073 	} else {
2074 		mac->cnt_after_linked = 0;
2075 	}
2076 
2077 	/* <2> to check if traffic busy, if
2078 	 * busytraffic we don't change channel
2079 	 */
2080 	if (mac->link_state >= MAC80211_LINKED) {
2081 		/* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */
2082 		for (idx = 0; idx <= 2; idx++) {
2083 			rtlpriv->link_info.num_rx_in4period[idx] =
2084 			    rtlpriv->link_info.num_rx_in4period[idx + 1];
2085 			rtlpriv->link_info.num_tx_in4period[idx] =
2086 			    rtlpriv->link_info.num_tx_in4period[idx + 1];
2087 		}
2088 		rtlpriv->link_info.num_rx_in4period[3] =
2089 		    rtlpriv->link_info.num_rx_inperiod;
2090 		rtlpriv->link_info.num_tx_in4period[3] =
2091 		    rtlpriv->link_info.num_tx_inperiod;
2092 		for (idx = 0; idx <= 3; idx++) {
2093 			rx_cnt_inp4eriod +=
2094 			    rtlpriv->link_info.num_rx_in4period[idx];
2095 			tx_cnt_inp4eriod +=
2096 			    rtlpriv->link_info.num_tx_in4period[idx];
2097 		}
2098 		aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4;
2099 		aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4;
2100 
2101 		/* (2) check traffic busy */
2102 		if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) {
2103 			busytraffic = true;
2104 			if (aver_rx_cnt_inperiod > aver_tx_cnt_inperiod)
2105 				rx_busy_traffic = true;
2106 			else
2107 				tx_busy_traffic = false;
2108 		}
2109 
2110 		/* Higher Tx/Rx data. */
2111 		if (aver_rx_cnt_inperiod > 4000 ||
2112 		    aver_tx_cnt_inperiod > 4000) {
2113 			higher_busytraffic = true;
2114 
2115 			/* Extremely high Rx data. */
2116 			if (aver_rx_cnt_inperiod > 5000)
2117 				higher_busyrxtraffic = true;
2118 		}
2119 
2120 		/* check every tid's tx traffic */
2121 		for (tid = 0; tid <= 7; tid++) {
2122 			for (idx = 0; idx <= 2; idx++)
2123 				rtlpriv->link_info.tidtx_in4period[tid][idx] =
2124 					rtlpriv->link_info.tidtx_in4period[tid]
2125 					[idx + 1];
2126 			rtlpriv->link_info.tidtx_in4period[tid][3] =
2127 				rtlpriv->link_info.tidtx_inperiod[tid];
2128 
2129 			for (idx = 0; idx <= 3; idx++)
2130 				tidtx_inp4eriod[tid] +=
2131 				   rtlpriv->link_info.tidtx_in4period[tid][idx];
2132 			aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4;
2133 			if (aver_tidtx_inperiod[tid] > 5000)
2134 				rtlpriv->link_info.higher_busytxtraffic[tid] =
2135 									true;
2136 			else
2137 				rtlpriv->link_info.higher_busytxtraffic[tid] =
2138 									false;
2139 		}
2140 
2141 		/* PS is controlled by coex. */
2142 		if (rtlpriv->cfg->ops->get_btc_status() &&
2143 		    rtlpriv->btcoexist.btc_ops->btc_is_bt_ctrl_lps(rtlpriv))
2144 			goto label_lps_done;
2145 
2146 		if (rtlpriv->link_info.num_rx_inperiod +
2147 		      rtlpriv->link_info.num_tx_inperiod > 8 ||
2148 		    rtlpriv->link_info.num_rx_inperiod > 2)
2149 			rtl_lps_leave(hw, true);
2150 		else
2151 			rtl_lps_enter(hw, true);
2152 
2153 label_lps_done:
2154 		;
2155 	}
2156 
2157 	for (tid = 0; tid <= 7; tid++)
2158 		rtlpriv->link_info.tidtx_inperiod[tid] = 0;
2159 
2160 	rtlpriv->link_info.busytraffic = busytraffic;
2161 	rtlpriv->link_info.higher_busytraffic = higher_busytraffic;
2162 	rtlpriv->link_info.rx_busy_traffic = rx_busy_traffic;
2163 	rtlpriv->link_info.tx_busy_traffic = tx_busy_traffic;
2164 	rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic;
2165 
2166 	rtlpriv->stats.txbytesunicast_inperiod =
2167 		rtlpriv->stats.txbytesunicast -
2168 		rtlpriv->stats.txbytesunicast_last;
2169 	rtlpriv->stats.rxbytesunicast_inperiod =
2170 		rtlpriv->stats.rxbytesunicast -
2171 		rtlpriv->stats.rxbytesunicast_last;
2172 	rtlpriv->stats.txbytesunicast_last = rtlpriv->stats.txbytesunicast;
2173 	rtlpriv->stats.rxbytesunicast_last = rtlpriv->stats.rxbytesunicast;
2174 
2175 	rtlpriv->stats.txbytesunicast_inperiod_tp =
2176 		(u32)(rtlpriv->stats.txbytesunicast_inperiod * 8 / 2 /
2177 		1024 / 1024);
2178 	rtlpriv->stats.rxbytesunicast_inperiod_tp =
2179 		(u32)(rtlpriv->stats.rxbytesunicast_inperiod * 8 / 2 /
2180 		1024 / 1024);
2181 
2182 	/* <3> DM */
2183 	if (!rtlpriv->cfg->mod_params->disable_watchdog)
2184 		rtlpriv->cfg->ops->dm_watchdog(hw);
2185 
2186 	/* <4> roaming */
2187 	if (mac->link_state == MAC80211_LINKED &&
2188 	    mac->opmode == NL80211_IFTYPE_STATION) {
2189 		if ((rtlpriv->link_info.bcn_rx_inperiod +
2190 		    rtlpriv->link_info.num_rx_inperiod) == 0) {
2191 			rtlpriv->link_info.roam_times++;
2192 			rtl_dbg(rtlpriv, COMP_ERR, DBG_DMESG,
2193 				"AP off for %d s\n",
2194 				(rtlpriv->link_info.roam_times * 2));
2195 
2196 			/* if we can't recv beacon for 10s,
2197 			 * we should reconnect this AP
2198 			 */
2199 			if (rtlpriv->link_info.roam_times >= 5) {
2200 				pr_err("AP off, try to reconnect now\n");
2201 				rtlpriv->link_info.roam_times = 0;
2202 				ieee80211_connection_loss(
2203 					rtlpriv->mac80211.vif);
2204 			}
2205 		} else {
2206 			rtlpriv->link_info.roam_times = 0;
2207 		}
2208 	}
2209 
2210 	if (rtlpriv->cfg->ops->get_btc_status())
2211 		rtlpriv->btcoexist.btc_ops->btc_periodical(rtlpriv);
2212 
2213 	if (rtlpriv->btcoexist.btc_info.in_4way) {
2214 		if (time_after(jiffies, rtlpriv->btcoexist.btc_info.in_4way_ts +
2215 			       msecs_to_jiffies(IN_4WAY_TIMEOUT_TIME)))
2216 			rtlpriv->btcoexist.btc_info.in_4way = false;
2217 	}
2218 
2219 	rtlpriv->link_info.num_rx_inperiod = 0;
2220 	rtlpriv->link_info.num_tx_inperiod = 0;
2221 	rtlpriv->link_info.bcn_rx_inperiod = 0;
2222 
2223 	/* <6> scan list */
2224 	rtl_scan_list_expire(hw);
2225 
2226 	/* <7> check ack queue */
2227 	rtl_free_entries_from_ack_queue(hw, true);
2228 }
2229 
rtl_watch_dog_timer_callback(struct timer_list * t)2230 void rtl_watch_dog_timer_callback(struct timer_list *t)
2231 {
2232 	struct rtl_priv *rtlpriv = from_timer(rtlpriv, t, works.watchdog_timer);
2233 
2234 	queue_delayed_work(rtlpriv->works.rtl_wq,
2235 			   &rtlpriv->works.watchdog_wq, 0);
2236 
2237 	mod_timer(&rtlpriv->works.watchdog_timer,
2238 		  jiffies + MSECS(RTL_WATCH_DOG_TIME));
2239 }
2240 
rtl_fwevt_wq_callback(struct work_struct * work)2241 static void rtl_fwevt_wq_callback(struct work_struct *work)
2242 {
2243 	struct rtl_works *rtlworks = container_of(work, struct rtl_works,
2244 						  fwevt_wq.work);
2245 	struct ieee80211_hw *hw = rtlworks->hw;
2246 	struct rtl_priv *rtlpriv = rtl_priv(hw);
2247 
2248 	rtlpriv->cfg->ops->c2h_command_handle(hw);
2249 }
2250 
2251 static void rtl_c2h_content_parsing(struct ieee80211_hw *hw,
2252 				    struct sk_buff *skb);
2253 
rtl_c2h_fast_cmd(struct ieee80211_hw * hw,struct sk_buff * skb)2254 static bool rtl_c2h_fast_cmd(struct ieee80211_hw *hw, struct sk_buff *skb)
2255 {
2256 	u8 cmd_id = GET_C2H_CMD_ID(skb->data);
2257 
2258 	switch (cmd_id) {
2259 	case C2H_BT_MP:
2260 		return true;
2261 	default:
2262 		break;
2263 	}
2264 
2265 	return false;
2266 }
2267 
rtl_c2hcmd_enqueue(struct ieee80211_hw * hw,struct sk_buff * skb)2268 void rtl_c2hcmd_enqueue(struct ieee80211_hw *hw, struct sk_buff *skb)
2269 {
2270 	struct rtl_priv *rtlpriv = rtl_priv(hw);
2271 
2272 	if (rtl_c2h_fast_cmd(hw, skb)) {
2273 		rtl_c2h_content_parsing(hw, skb);
2274 		kfree_skb(skb);
2275 		return;
2276 	}
2277 
2278 	/* enqueue */
2279 	skb_queue_tail(&rtlpriv->c2hcmd_queue, skb);
2280 
2281 	/* wake up wq */
2282 	queue_delayed_work(rtlpriv->works.rtl_wq, &rtlpriv->works.c2hcmd_wq, 0);
2283 }
2284 EXPORT_SYMBOL(rtl_c2hcmd_enqueue);
2285 
rtl_c2h_content_parsing(struct ieee80211_hw * hw,struct sk_buff * skb)2286 static void rtl_c2h_content_parsing(struct ieee80211_hw *hw,
2287 				    struct sk_buff *skb)
2288 {
2289 	struct rtl_priv *rtlpriv = rtl_priv(hw);
2290 	struct rtl_hal_ops *hal_ops = rtlpriv->cfg->ops;
2291 	const struct rtl_btc_ops *btc_ops = rtlpriv->btcoexist.btc_ops;
2292 	u8 cmd_id, cmd_len;
2293 	u8 *cmd_buf = NULL;
2294 
2295 	cmd_id = GET_C2H_CMD_ID(skb->data);
2296 	cmd_len = skb->len - C2H_DATA_OFFSET;
2297 	cmd_buf = GET_C2H_DATA_PTR(skb->data);
2298 
2299 	switch (cmd_id) {
2300 	case C2H_DBG:
2301 		rtl_dbg(rtlpriv, COMP_FW, DBG_LOUD, "[C2H], C2H_DBG!!\n");
2302 		break;
2303 	case C2H_TXBF:
2304 		rtl_dbg(rtlpriv, COMP_FW, DBG_TRACE,
2305 			"[C2H], C2H_TXBF!!\n");
2306 		break;
2307 	case C2H_TX_REPORT:
2308 		rtl_tx_report_handler(hw, cmd_buf, cmd_len);
2309 		break;
2310 	case C2H_RA_RPT:
2311 		if (hal_ops->c2h_ra_report_handler)
2312 			hal_ops->c2h_ra_report_handler(hw, cmd_buf, cmd_len);
2313 		break;
2314 	case C2H_BT_INFO:
2315 		rtl_dbg(rtlpriv, COMP_FW, DBG_TRACE,
2316 			"[C2H], C2H_BT_INFO!!\n");
2317 		if (rtlpriv->cfg->ops->get_btc_status())
2318 			btc_ops->btc_btinfo_notify(rtlpriv, cmd_buf, cmd_len);
2319 		break;
2320 	case C2H_BT_MP:
2321 		rtl_dbg(rtlpriv, COMP_FW, DBG_TRACE,
2322 			"[C2H], C2H_BT_MP!!\n");
2323 		if (rtlpriv->cfg->ops->get_btc_status())
2324 			btc_ops->btc_btmpinfo_notify(rtlpriv, cmd_buf, cmd_len);
2325 		break;
2326 	default:
2327 		rtl_dbg(rtlpriv, COMP_FW, DBG_TRACE,
2328 			"[C2H], Unknown packet!! cmd_id(%#X)!\n", cmd_id);
2329 		break;
2330 	}
2331 }
2332 
rtl_c2hcmd_launcher(struct ieee80211_hw * hw,int exec)2333 void rtl_c2hcmd_launcher(struct ieee80211_hw *hw, int exec)
2334 {
2335 	struct rtl_priv *rtlpriv = rtl_priv(hw);
2336 	struct sk_buff *skb;
2337 	int i;
2338 
2339 	for (i = 0; i < 200; i++) {
2340 		/* dequeue a task */
2341 		skb = skb_dequeue(&rtlpriv->c2hcmd_queue);
2342 
2343 		/* do it */
2344 		if (!skb)
2345 			break;
2346 
2347 		rtl_dbg(rtlpriv, COMP_FW, DBG_DMESG, "C2H rx_desc_shift=%d\n",
2348 			*((u8 *)skb->cb));
2349 		RT_PRINT_DATA(rtlpriv, COMP_FW, DBG_DMESG,
2350 			      "C2H data: ", skb->data, skb->len);
2351 
2352 		if (exec)
2353 			rtl_c2h_content_parsing(hw, skb);
2354 
2355 		/* free */
2356 		dev_kfree_skb_any(skb);
2357 	}
2358 }
2359 
rtl_c2hcmd_wq_callback(struct work_struct * work)2360 static void rtl_c2hcmd_wq_callback(struct work_struct *work)
2361 {
2362 	struct rtl_works *rtlworks = container_of(work, struct rtl_works,
2363 						  c2hcmd_wq.work);
2364 	struct ieee80211_hw *hw = rtlworks->hw;
2365 
2366 	rtl_c2hcmd_launcher(hw, 1);
2367 }
2368 
rtl_easy_concurrent_retrytimer_callback(struct timer_list * t)2369 void rtl_easy_concurrent_retrytimer_callback(struct timer_list *t)
2370 {
2371 	struct rtl_priv *rtlpriv =
2372 		from_timer(rtlpriv, t, works.dualmac_easyconcurrent_retrytimer);
2373 	struct ieee80211_hw *hw = rtlpriv->hw;
2374 	struct rtl_priv *buddy_priv = rtlpriv->buddy_priv;
2375 
2376 	if (buddy_priv == NULL)
2377 		return;
2378 
2379 	rtlpriv->cfg->ops->dualmac_easy_concurrent(hw);
2380 }
2381 
2382 /*********************************************************
2383  *
2384  * frame process functions
2385  *
2386  *********************************************************/
rtl_find_ie(u8 * data,unsigned int len,u8 ie)2387 u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie)
2388 {
2389 	struct ieee80211_mgmt *mgmt = (void *)data;
2390 	u8 *pos, *end;
2391 
2392 	pos = (u8 *)mgmt->u.beacon.variable;
2393 	end = data + len;
2394 	while (pos < end) {
2395 		if (pos + 2 + pos[1] > end)
2396 			return NULL;
2397 
2398 		if (pos[0] == ie)
2399 			return pos;
2400 
2401 		pos += 2 + pos[1];
2402 	}
2403 	return NULL;
2404 }
2405 
2406 /* when we use 2 rx ants we send IEEE80211_SMPS_OFF */
2407 /* 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)2408 static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw,
2409 				     enum ieee80211_smps_mode smps,
2410 				     u8 *da, u8 *bssid)
2411 {
2412 	struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
2413 	struct sk_buff *skb;
2414 	struct ieee80211_mgmt *action_frame;
2415 
2416 	/* 27 = header + category + action + smps mode */
2417 	skb = dev_alloc_skb(27 + hw->extra_tx_headroom);
2418 	if (!skb)
2419 		return NULL;
2420 
2421 	skb_reserve(skb, hw->extra_tx_headroom);
2422 	action_frame = skb_put_zero(skb, 27);
2423 	memcpy(action_frame->da, da, ETH_ALEN);
2424 	memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN);
2425 	memcpy(action_frame->bssid, bssid, ETH_ALEN);
2426 	action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2427 						  IEEE80211_STYPE_ACTION);
2428 	action_frame->u.action.category = WLAN_CATEGORY_HT;
2429 	action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS;
2430 	switch (smps) {
2431 	case IEEE80211_SMPS_AUTOMATIC:/* 0 */
2432 	case IEEE80211_SMPS_NUM_MODES:/* 4 */
2433 		WARN_ON(1);
2434 		fallthrough;
2435 	case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/
2436 		action_frame->u.action.u.ht_smps.smps_control =
2437 				WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */
2438 		break;
2439 	case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/
2440 		action_frame->u.action.u.ht_smps.smps_control =
2441 				WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */
2442 		break;
2443 	case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/
2444 		action_frame->u.action.u.ht_smps.smps_control =
2445 				WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */
2446 		break;
2447 	}
2448 
2449 	return skb;
2450 }
2451 
rtl_send_smps_action(struct ieee80211_hw * hw,struct ieee80211_sta * sta,enum ieee80211_smps_mode smps)2452 int rtl_send_smps_action(struct ieee80211_hw *hw,
2453 			 struct ieee80211_sta *sta,
2454 			 enum ieee80211_smps_mode smps)
2455 {
2456 	struct rtl_priv *rtlpriv = rtl_priv(hw);
2457 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
2458 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
2459 	struct sk_buff *skb = NULL;
2460 	struct rtl_tcb_desc tcb_desc;
2461 	u8 bssid[ETH_ALEN] = {0};
2462 
2463 	memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
2464 
2465 	if (rtlpriv->mac80211.act_scanning)
2466 		goto err_free;
2467 
2468 	if (!sta)
2469 		goto err_free;
2470 
2471 	if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
2472 		goto err_free;
2473 
2474 	if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
2475 		goto err_free;
2476 
2477 	if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP)
2478 		memcpy(bssid, rtlpriv->efuse.dev_addr, ETH_ALEN);
2479 	else
2480 		memcpy(bssid, rtlpriv->mac80211.bssid, ETH_ALEN);
2481 
2482 	skb = rtl_make_smps_action(hw, smps, sta->addr, bssid);
2483 	/* this is a type = mgmt * stype = action frame */
2484 	if (skb) {
2485 		struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
2486 		struct rtl_sta_info *sta_entry =
2487 			(struct rtl_sta_info *) sta->drv_priv;
2488 		sta_entry->mimo_ps = smps;
2489 		/* rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0, true); */
2490 
2491 		info->control.rates[0].idx = 0;
2492 		info->band = hw->conf.chandef.chan->band;
2493 		rtlpriv->intf_ops->adapter_tx(hw, sta, skb, &tcb_desc);
2494 	}
2495 	return 1;
2496 
2497 err_free:
2498 	return 0;
2499 }
2500 EXPORT_SYMBOL(rtl_send_smps_action);
2501 
rtl_phy_scan_operation_backup(struct ieee80211_hw * hw,u8 operation)2502 void rtl_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation)
2503 {
2504 	struct rtl_priv *rtlpriv = rtl_priv(hw);
2505 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
2506 	enum io_type iotype;
2507 
2508 	if (!is_hal_stop(rtlhal)) {
2509 		switch (operation) {
2510 		case SCAN_OPT_BACKUP:
2511 			iotype = IO_CMD_PAUSE_DM_BY_SCAN;
2512 			rtlpriv->cfg->ops->set_hw_reg(hw,
2513 						      HW_VAR_IO_CMD,
2514 						      (u8 *)&iotype);
2515 			break;
2516 		case SCAN_OPT_RESTORE:
2517 			iotype = IO_CMD_RESUME_DM_BY_SCAN;
2518 			rtlpriv->cfg->ops->set_hw_reg(hw,
2519 						      HW_VAR_IO_CMD,
2520 						      (u8 *)&iotype);
2521 			break;
2522 		default:
2523 			pr_err("Unknown Scan Backup operation.\n");
2524 			break;
2525 		}
2526 	}
2527 }
2528 EXPORT_SYMBOL(rtl_phy_scan_operation_backup);
2529 
2530 /* because mac80211 have issues when can receive del ba
2531  * so here we just make a fake del_ba if we receive a ba_req
2532  * but rx_agg was opened to let mac80211 release some ba
2533  * related resources, so please this del_ba for tx
2534  */
rtl_make_del_ba(struct ieee80211_hw * hw,u8 * sa,u8 * bssid,u16 tid)2535 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw,
2536 				u8 *sa, u8 *bssid, u16 tid)
2537 {
2538 	struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
2539 	struct sk_buff *skb;
2540 	struct ieee80211_mgmt *action_frame;
2541 	u16 params;
2542 
2543 	/* 27 = header + category + action + smps mode */
2544 	skb = dev_alloc_skb(34 + hw->extra_tx_headroom);
2545 	if (!skb)
2546 		return NULL;
2547 
2548 	skb_reserve(skb, hw->extra_tx_headroom);
2549 	action_frame = skb_put_zero(skb, 34);
2550 	memcpy(action_frame->sa, sa, ETH_ALEN);
2551 	memcpy(action_frame->da, rtlefuse->dev_addr, ETH_ALEN);
2552 	memcpy(action_frame->bssid, bssid, ETH_ALEN);
2553 	action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2554 						  IEEE80211_STYPE_ACTION);
2555 	action_frame->u.action.category = WLAN_CATEGORY_BACK;
2556 	action_frame->u.action.u.delba.action_code = WLAN_ACTION_DELBA;
2557 	params = (u16)(1 << 11);	/* bit 11 initiator */
2558 	params |= (u16)(tid << 12);	/* bit 15:12 TID number */
2559 
2560 	action_frame->u.action.u.delba.params = cpu_to_le16(params);
2561 	action_frame->u.action.u.delba.reason_code =
2562 		cpu_to_le16(WLAN_REASON_QSTA_TIMEOUT);
2563 
2564 	return skb;
2565 }
2566 
2567 /*********************************************************
2568  *
2569  * IOT functions
2570  *
2571  *********************************************************/
rtl_chk_vendor_ouisub(struct ieee80211_hw * hw,struct octet_string vendor_ie)2572 static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw,
2573 				  struct octet_string vendor_ie)
2574 {
2575 	struct rtl_priv *rtlpriv = rtl_priv(hw);
2576 	bool matched = false;
2577 	static u8 athcap_1[] = { 0x00, 0x03, 0x7F };
2578 	static u8 athcap_2[] = { 0x00, 0x13, 0x74 };
2579 	static u8 broadcap_1[] = { 0x00, 0x10, 0x18 };
2580 	static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 };
2581 	static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 };
2582 	static u8 racap[] = { 0x00, 0x0c, 0x43 };
2583 	static u8 ciscocap[] = { 0x00, 0x40, 0x96 };
2584 	static u8 marvcap[] = { 0x00, 0x50, 0x43 };
2585 
2586 	if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 ||
2587 		memcmp(vendor_ie.octet, athcap_2, 3) == 0) {
2588 		rtlpriv->mac80211.vendor = PEER_ATH;
2589 		matched = true;
2590 	} else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 ||
2591 		memcmp(vendor_ie.octet, broadcap_2, 3) == 0 ||
2592 		memcmp(vendor_ie.octet, broadcap_3, 3) == 0) {
2593 		rtlpriv->mac80211.vendor = PEER_BROAD;
2594 		matched = true;
2595 	} else if (memcmp(vendor_ie.octet, racap, 3) == 0) {
2596 		rtlpriv->mac80211.vendor = PEER_RAL;
2597 		matched = true;
2598 	} else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) {
2599 		rtlpriv->mac80211.vendor = PEER_CISCO;
2600 		matched = true;
2601 	} else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) {
2602 		rtlpriv->mac80211.vendor = PEER_MARV;
2603 		matched = true;
2604 	}
2605 
2606 	return matched;
2607 }
2608 
rtl_find_221_ie(struct ieee80211_hw * hw,u8 * data,unsigned int len)2609 static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data,
2610 		unsigned int len)
2611 {
2612 	struct ieee80211_mgmt *mgmt = (void *)data;
2613 	struct octet_string vendor_ie;
2614 	u8 *pos, *end;
2615 
2616 	pos = (u8 *)mgmt->u.beacon.variable;
2617 	end = data + len;
2618 	while (pos < end) {
2619 		if (pos[0] == 221) {
2620 			vendor_ie.length = pos[1];
2621 			vendor_ie.octet = &pos[2];
2622 			if (rtl_chk_vendor_ouisub(hw, vendor_ie))
2623 				return true;
2624 		}
2625 
2626 		if (pos + 2 + pos[1] > end)
2627 			return false;
2628 
2629 		pos += 2 + pos[1];
2630 	}
2631 	return false;
2632 }
2633 
rtl_recognize_peer(struct ieee80211_hw * hw,u8 * data,unsigned int len)2634 void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len)
2635 {
2636 	struct rtl_priv *rtlpriv = rtl_priv(hw);
2637 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
2638 	struct ieee80211_hdr *hdr = (void *)data;
2639 	u32 vendor = PEER_UNKNOWN;
2640 
2641 	static u8 ap3_1[3] = { 0x00, 0x14, 0xbf };
2642 	static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 };
2643 	static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e };
2644 	static u8 ap4_1[3] = { 0x00, 0x90, 0xcc };
2645 	static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e };
2646 	static u8 ap4_3[3] = { 0x00, 0x18, 0x02 };
2647 	static u8 ap4_4[3] = { 0x00, 0x17, 0x3f };
2648 	static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf };
2649 	static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 };
2650 	static u8 ap5_2[3] = { 0x00, 0x21, 0x91 };
2651 	static u8 ap5_3[3] = { 0x00, 0x24, 0x01 };
2652 	static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 };
2653 	static u8 ap5_5[3] = { 0x00, 0x17, 0x9A };
2654 	static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 };
2655 	static u8 ap6_1[3] = { 0x00, 0x17, 0x94 };
2656 	static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 };
2657 
2658 	if (mac->opmode != NL80211_IFTYPE_STATION)
2659 		return;
2660 
2661 	if (mac->link_state == MAC80211_NOLINK) {
2662 		mac->vendor = PEER_UNKNOWN;
2663 		return;
2664 	}
2665 
2666 	if (mac->cnt_after_linked > 2)
2667 		return;
2668 
2669 	/* check if this really is a beacon */
2670 	if (!ieee80211_is_beacon(hdr->frame_control))
2671 		return;
2672 
2673 	/* min. beacon length + FCS_LEN */
2674 	if (len <= 40 + FCS_LEN)
2675 		return;
2676 
2677 	/* and only beacons from the associated BSSID, please */
2678 	if (!ether_addr_equal_64bits(hdr->addr3, rtlpriv->mac80211.bssid))
2679 		return;
2680 
2681 	if (rtl_find_221_ie(hw, data, len))
2682 		vendor = mac->vendor;
2683 
2684 	if ((memcmp(mac->bssid, ap5_1, 3) == 0) ||
2685 		(memcmp(mac->bssid, ap5_2, 3) == 0) ||
2686 		(memcmp(mac->bssid, ap5_3, 3) == 0) ||
2687 		(memcmp(mac->bssid, ap5_4, 3) == 0) ||
2688 		(memcmp(mac->bssid, ap5_5, 3) == 0) ||
2689 		(memcmp(mac->bssid, ap5_6, 3) == 0) ||
2690 		vendor == PEER_ATH) {
2691 		vendor = PEER_ATH;
2692 		rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ath find\n");
2693 	} else if ((memcmp(mac->bssid, ap4_4, 3) == 0) ||
2694 		(memcmp(mac->bssid, ap4_5, 3) == 0) ||
2695 		(memcmp(mac->bssid, ap4_1, 3) == 0) ||
2696 		(memcmp(mac->bssid, ap4_2, 3) == 0) ||
2697 		(memcmp(mac->bssid, ap4_3, 3) == 0) ||
2698 		vendor == PEER_RAL) {
2699 		rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ral find\n");
2700 		vendor = PEER_RAL;
2701 	} else if (memcmp(mac->bssid, ap6_1, 3) == 0 ||
2702 		vendor == PEER_CISCO) {
2703 		vendor = PEER_CISCO;
2704 		rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>cisco find\n");
2705 	} else if ((memcmp(mac->bssid, ap3_1, 3) == 0) ||
2706 		(memcmp(mac->bssid, ap3_2, 3) == 0) ||
2707 		(memcmp(mac->bssid, ap3_3, 3) == 0) ||
2708 		vendor == PEER_BROAD) {
2709 		rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>broad find\n");
2710 		vendor = PEER_BROAD;
2711 	} else if (memcmp(mac->bssid, ap7_1, 3) == 0 ||
2712 		vendor == PEER_MARV) {
2713 		vendor = PEER_MARV;
2714 		rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>marv find\n");
2715 	}
2716 
2717 	mac->vendor = vendor;
2718 }
2719 EXPORT_SYMBOL_GPL(rtl_recognize_peer);
2720 
2721 MODULE_AUTHOR("lizhaoming	<chaoming_li@realsil.com.cn>");
2722 MODULE_AUTHOR("Realtek WlanFAE	<wlanfae@realtek.com>");
2723 MODULE_AUTHOR("Larry Finger	<Larry.FInger@lwfinger.net>");
2724 MODULE_LICENSE("GPL");
2725 MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");
2726 
2727 struct rtl_global_var rtl_global_var = {};
2728 EXPORT_SYMBOL_GPL(rtl_global_var);
2729 
rtl_core_module_init(void)2730 static int __init rtl_core_module_init(void)
2731 {
2732 	BUILD_BUG_ON(TX_PWR_BY_RATE_NUM_RATE < TX_PWR_BY_RATE_NUM_SECTION);
2733 	BUILD_BUG_ON(MAX_RATE_SECTION_NUM != MAX_RATE_SECTION);
2734 	BUILD_BUG_ON(MAX_BASE_NUM_IN_PHY_REG_PG_24G != MAX_RATE_SECTION);
2735 	BUILD_BUG_ON(MAX_BASE_NUM_IN_PHY_REG_PG_5G != (MAX_RATE_SECTION - 1));
2736 
2737 	if (rtl_rate_control_register())
2738 		pr_err("rtl: Unable to register rtl_rc, use default RC !!\n");
2739 
2740 	/* add debugfs */
2741 	rtl_debugfs_add_topdir();
2742 
2743 	/* init some global vars */
2744 	INIT_LIST_HEAD(&rtl_global_var.glb_priv_list);
2745 	spin_lock_init(&rtl_global_var.glb_list_lock);
2746 
2747 	return 0;
2748 }
2749 
rtl_core_module_exit(void)2750 static void __exit rtl_core_module_exit(void)
2751 {
2752 	/*RC*/
2753 	rtl_rate_control_unregister();
2754 
2755 	/* remove debugfs */
2756 	rtl_debugfs_remove_topdir();
2757 }
2758 
2759 module_init(rtl_core_module_init);
2760 module_exit(rtl_core_module_exit);
2761