xref: /linux/drivers/net/wireless/realtek/rtlwifi/base.c (revision a1ff5a7d78a036d6c2178ee5acd6ba4946243800)
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 
456 	/* <2> work queue */
457 	rtlpriv->works.hw = hw;
458 	rtlpriv->works.rtl_wq = wq;
459 
460 	INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
461 			  rtl_watchdog_wq_callback);
462 	INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,
463 			  rtl_ips_nic_off_wq_callback);
464 	INIT_DELAYED_WORK(&rtlpriv->works.ps_work, rtl_swlps_wq_callback);
465 	INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq,
466 			  rtl_swlps_rfon_wq_callback);
467 	INIT_DELAYED_WORK(&rtlpriv->works.fwevt_wq, rtl_fwevt_wq_callback);
468 	INIT_DELAYED_WORK(&rtlpriv->works.c2hcmd_wq, rtl_c2hcmd_wq_callback);
469 	return 0;
470 }
471 
rtl_deinit_deferred_work(struct ieee80211_hw * hw,bool ips_wq)472 void rtl_deinit_deferred_work(struct ieee80211_hw *hw, bool ips_wq)
473 {
474 	struct rtl_priv *rtlpriv = rtl_priv(hw);
475 
476 	del_timer_sync(&rtlpriv->works.watchdog_timer);
477 
478 	cancel_delayed_work_sync(&rtlpriv->works.watchdog_wq);
479 	if (ips_wq)
480 		cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq);
481 	else
482 		cancel_delayed_work_sync(&rtlpriv->works.ips_nic_off_wq);
483 	cancel_delayed_work_sync(&rtlpriv->works.ps_work);
484 	cancel_delayed_work_sync(&rtlpriv->works.ps_rfon_wq);
485 	cancel_delayed_work_sync(&rtlpriv->works.fwevt_wq);
486 	cancel_delayed_work_sync(&rtlpriv->works.c2hcmd_wq);
487 }
488 EXPORT_SYMBOL_GPL(rtl_deinit_deferred_work);
489 
rtl_init_rfkill(struct ieee80211_hw * hw)490 void rtl_init_rfkill(struct ieee80211_hw *hw)
491 {
492 	struct rtl_priv *rtlpriv = rtl_priv(hw);
493 
494 	bool radio_state;
495 	bool blocked;
496 	u8 valid = 0;
497 
498 	/*set init state to on */
499 	rtlpriv->rfkill.rfkill_state = true;
500 	wiphy_rfkill_set_hw_state(hw->wiphy, 0);
501 
502 	radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
503 
504 	if (valid) {
505 		pr_info("rtlwifi: wireless switch is %s\n",
506 			rtlpriv->rfkill.rfkill_state ? "on" : "off");
507 
508 		rtlpriv->rfkill.rfkill_state = radio_state;
509 
510 		blocked = rtlpriv->rfkill.rfkill_state != 1;
511 		wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
512 	}
513 
514 	wiphy_rfkill_start_polling(hw->wiphy);
515 }
516 EXPORT_SYMBOL(rtl_init_rfkill);
517 
rtl_deinit_rfkill(struct ieee80211_hw * hw)518 void rtl_deinit_rfkill(struct ieee80211_hw *hw)
519 {
520 	wiphy_rfkill_stop_polling(hw->wiphy);
521 }
522 EXPORT_SYMBOL_GPL(rtl_deinit_rfkill);
523 
rtl_init_core(struct ieee80211_hw * hw)524 int rtl_init_core(struct ieee80211_hw *hw)
525 {
526 	struct rtl_priv *rtlpriv = rtl_priv(hw);
527 	struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
528 
529 	/* <1> init mac80211 */
530 	_rtl_init_mac80211(hw);
531 	rtlmac->hw = hw;
532 
533 	/* <2> rate control register */
534 	hw->rate_control_algorithm = "rtl_rc";
535 
536 	/*
537 	 * <3> init CRDA must come after init
538 	 * mac80211 hw  in _rtl_init_mac80211.
539 	 */
540 	if (rtl_regd_init(hw, rtl_reg_notifier)) {
541 		pr_err("REGD init failed\n");
542 		return 1;
543 	}
544 
545 	/* <4> locks */
546 	mutex_init(&rtlpriv->locks.conf_mutex);
547 	mutex_init(&rtlpriv->locks.ips_mutex);
548 	mutex_init(&rtlpriv->locks.lps_mutex);
549 	spin_lock_init(&rtlpriv->locks.irq_th_lock);
550 	spin_lock_init(&rtlpriv->locks.h2c_lock);
551 	spin_lock_init(&rtlpriv->locks.rf_ps_lock);
552 	spin_lock_init(&rtlpriv->locks.rf_lock);
553 	spin_lock_init(&rtlpriv->locks.waitq_lock);
554 	spin_lock_init(&rtlpriv->locks.entry_list_lock);
555 	spin_lock_init(&rtlpriv->locks.scan_list_lock);
556 	spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock);
557 	spin_lock_init(&rtlpriv->locks.fw_ps_lock);
558 	spin_lock_init(&rtlpriv->locks.iqk_lock);
559 	/* <5> init list */
560 	INIT_LIST_HEAD(&rtlpriv->entry_list);
561 	INIT_LIST_HEAD(&rtlpriv->scan_list.list);
562 	skb_queue_head_init(&rtlpriv->tx_report.queue);
563 	skb_queue_head_init(&rtlpriv->c2hcmd_queue);
564 
565 	rtlmac->link_state = MAC80211_NOLINK;
566 
567 	/* <6> init deferred work */
568 	return _rtl_init_deferred_work(hw);
569 }
570 EXPORT_SYMBOL_GPL(rtl_init_core);
571 
572 static void rtl_free_entries_from_scan_list(struct ieee80211_hw *hw);
573 static void rtl_free_entries_from_ack_queue(struct ieee80211_hw *hw,
574 					    bool timeout);
575 
rtl_deinit_core(struct ieee80211_hw * hw)576 void rtl_deinit_core(struct ieee80211_hw *hw)
577 {
578 	rtl_c2hcmd_launcher(hw, 0);
579 	rtl_free_entries_from_scan_list(hw);
580 	rtl_free_entries_from_ack_queue(hw, false);
581 }
582 EXPORT_SYMBOL_GPL(rtl_deinit_core);
583 
rtl_init_rx_config(struct ieee80211_hw * hw)584 void rtl_init_rx_config(struct ieee80211_hw *hw)
585 {
586 	struct rtl_priv *rtlpriv = rtl_priv(hw);
587 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
588 
589 	rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf));
590 }
591 EXPORT_SYMBOL_GPL(rtl_init_rx_config);
592 
593 /*********************************************************
594  *
595  * tx information functions
596  *
597  *********************************************************/
_rtl_qurey_shortpreamble_mode(struct ieee80211_hw * hw,struct rtl_tcb_desc * tcb_desc,struct ieee80211_tx_info * info)598 static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw,
599 					  struct rtl_tcb_desc *tcb_desc,
600 					  struct ieee80211_tx_info *info)
601 {
602 	struct rtl_priv *rtlpriv = rtl_priv(hw);
603 	u8 rate_flag = info->control.rates[0].flags;
604 
605 	tcb_desc->use_shortpreamble = false;
606 
607 	/* 1M can only use Long Preamble. 11B spec */
608 	if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M])
609 		return;
610 	else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
611 		tcb_desc->use_shortpreamble = true;
612 
613 	return;
614 }
615 
_rtl_query_shortgi(struct ieee80211_hw * hw,struct ieee80211_sta * sta,struct rtl_tcb_desc * tcb_desc,struct ieee80211_tx_info * info)616 static void _rtl_query_shortgi(struct ieee80211_hw *hw,
617 			       struct ieee80211_sta *sta,
618 			       struct rtl_tcb_desc *tcb_desc,
619 			       struct ieee80211_tx_info *info)
620 {
621 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
622 	u8 rate_flag = info->control.rates[0].flags;
623 	u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0;
624 	u8 sgi_80 = 0, bw_80 = 0;
625 
626 	tcb_desc->use_shortgi = false;
627 
628 	if (sta == NULL)
629 		return;
630 
631 	sgi_40 = sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SGI_40;
632 	sgi_20 = sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SGI_20;
633 	sgi_80 = sta->deflink.vht_cap.cap & IEEE80211_VHT_CAP_SHORT_GI_80;
634 
635 	if (!sta->deflink.ht_cap.ht_supported &&
636 	    !sta->deflink.vht_cap.vht_supported)
637 		return;
638 
639 	if (!sgi_40 && !sgi_20)
640 		return;
641 
642 	if (mac->opmode == NL80211_IFTYPE_STATION) {
643 		bw_40 = mac->bw_40;
644 		bw_80 = mac->bw_80;
645 	} else if (mac->opmode == NL80211_IFTYPE_AP ||
646 		 mac->opmode == NL80211_IFTYPE_ADHOC ||
647 		 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
648 		bw_40 = sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40;
649 		bw_80 = sta->deflink.vht_cap.vht_supported;
650 	}
651 
652 	if (bw_80) {
653 		if (sgi_80)
654 			tcb_desc->use_shortgi = true;
655 		else
656 			tcb_desc->use_shortgi = false;
657 	} else {
658 		if (bw_40 && sgi_40)
659 			tcb_desc->use_shortgi = true;
660 		else if (!bw_40 && sgi_20)
661 			tcb_desc->use_shortgi = true;
662 	}
663 
664 	if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI))
665 		tcb_desc->use_shortgi = false;
666 }
667 
_rtl_query_protection_mode(struct ieee80211_hw * hw,struct rtl_tcb_desc * tcb_desc,struct ieee80211_tx_info * info)668 static void _rtl_query_protection_mode(struct ieee80211_hw *hw,
669 				       struct rtl_tcb_desc *tcb_desc,
670 				       struct ieee80211_tx_info *info)
671 {
672 	struct rtl_priv *rtlpriv = rtl_priv(hw);
673 	u8 rate_flag = info->control.rates[0].flags;
674 
675 	/* Common Settings */
676 	tcb_desc->rts_stbc = false;
677 	tcb_desc->cts_enable = false;
678 	tcb_desc->rts_sc = 0;
679 	tcb_desc->rts_bw = false;
680 	tcb_desc->rts_use_shortpreamble = false;
681 	tcb_desc->rts_use_shortgi = false;
682 
683 	if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) {
684 		/* Use CTS-to-SELF in protection mode. */
685 		tcb_desc->rts_enable = true;
686 		tcb_desc->cts_enable = true;
687 		tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
688 	} else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) {
689 		/* Use RTS-CTS in protection mode. */
690 		tcb_desc->rts_enable = true;
691 		tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
692 	}
693 }
694 
rtl_mrate_idx_to_arfr_id(struct ieee80211_hw * hw,u8 rate_index,enum wireless_mode wirelessmode)695 u8 rtl_mrate_idx_to_arfr_id(struct ieee80211_hw *hw, u8 rate_index,
696 			    enum wireless_mode wirelessmode)
697 {
698 	struct rtl_priv *rtlpriv = rtl_priv(hw);
699 	struct rtl_phy *rtlphy = &rtlpriv->phy;
700 	u8 ret = 0;
701 
702 	switch (rate_index) {
703 	case RATR_INX_WIRELESS_NGB:
704 		if (rtlphy->rf_type == RF_1T1R)
705 			ret = RATEID_IDX_BGN_40M_1SS;
706 		else
707 			ret = RATEID_IDX_BGN_40M_2SS;
708 		; break;
709 	case RATR_INX_WIRELESS_N:
710 	case RATR_INX_WIRELESS_NG:
711 		if (rtlphy->rf_type == RF_1T1R)
712 			ret = RATEID_IDX_GN_N1SS;
713 		else
714 			ret = RATEID_IDX_GN_N2SS;
715 		; break;
716 	case RATR_INX_WIRELESS_NB:
717 		if (rtlphy->rf_type == RF_1T1R)
718 			ret = RATEID_IDX_BGN_20M_1SS_BN;
719 		else
720 			ret = RATEID_IDX_BGN_20M_2SS_BN;
721 		; break;
722 	case RATR_INX_WIRELESS_GB:
723 		ret = RATEID_IDX_BG;
724 		break;
725 	case RATR_INX_WIRELESS_G:
726 		ret = RATEID_IDX_G;
727 		break;
728 	case RATR_INX_WIRELESS_B:
729 		ret = RATEID_IDX_B;
730 		break;
731 	case RATR_INX_WIRELESS_MC:
732 		if (wirelessmode == WIRELESS_MODE_B ||
733 		    wirelessmode == WIRELESS_MODE_G ||
734 		    wirelessmode == WIRELESS_MODE_N_24G ||
735 		    wirelessmode == WIRELESS_MODE_AC_24G)
736 			ret = RATEID_IDX_BG;
737 		else
738 			ret = RATEID_IDX_G;
739 		break;
740 	case RATR_INX_WIRELESS_AC_5N:
741 		if (rtlphy->rf_type == RF_1T1R)
742 			ret = RATEID_IDX_VHT_1SS;
743 		else
744 			ret = RATEID_IDX_VHT_2SS;
745 		break;
746 	case RATR_INX_WIRELESS_AC_24N:
747 		if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_80) {
748 			if (rtlphy->rf_type == RF_1T1R)
749 				ret = RATEID_IDX_VHT_1SS;
750 			else
751 				ret = RATEID_IDX_VHT_2SS;
752 		} else {
753 			if (rtlphy->rf_type == RF_1T1R)
754 				ret = RATEID_IDX_MIX1;
755 			else
756 				ret = RATEID_IDX_MIX2;
757 		}
758 		break;
759 	default:
760 		ret = RATEID_IDX_BGN_40M_2SS;
761 		break;
762 	}
763 	return ret;
764 }
765 EXPORT_SYMBOL(rtl_mrate_idx_to_arfr_id);
766 
_rtl_txrate_selectmode(struct ieee80211_hw * hw,struct ieee80211_sta * sta,struct rtl_tcb_desc * tcb_desc)767 static void _rtl_txrate_selectmode(struct ieee80211_hw *hw,
768 				   struct ieee80211_sta *sta,
769 				   struct rtl_tcb_desc *tcb_desc)
770 {
771 #define SET_RATE_ID(rate_id)					\
772 	({typeof(rate_id) _id = rate_id;			\
773 	  ((rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID) ?	\
774 		rtl_mrate_idx_to_arfr_id(hw, _id,		\
775 			(sta_entry ? sta_entry->wireless_mode :	\
776 			 WIRELESS_MODE_G)) :			\
777 		_id); })
778 
779 	struct rtl_priv *rtlpriv = rtl_priv(hw);
780 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
781 	struct rtl_sta_info *sta_entry = NULL;
782 	u8 ratr_index = SET_RATE_ID(RATR_INX_WIRELESS_MC);
783 
784 	if (sta) {
785 		sta_entry = (struct rtl_sta_info *) sta->drv_priv;
786 		ratr_index = sta_entry->ratr_index;
787 	}
788 	if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) {
789 		if (mac->opmode == NL80211_IFTYPE_STATION) {
790 			tcb_desc->ratr_index = 0;
791 		} else if (mac->opmode == NL80211_IFTYPE_ADHOC ||
792 				mac->opmode == NL80211_IFTYPE_MESH_POINT) {
793 			if (tcb_desc->multicast || tcb_desc->broadcast) {
794 				tcb_desc->hw_rate =
795 				    rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M];
796 				tcb_desc->use_driver_rate = 1;
797 				tcb_desc->ratr_index =
798 					SET_RATE_ID(RATR_INX_WIRELESS_MC);
799 			} else {
800 				tcb_desc->ratr_index = ratr_index;
801 			}
802 		} else if (mac->opmode == NL80211_IFTYPE_AP) {
803 			tcb_desc->ratr_index = ratr_index;
804 		}
805 	}
806 
807 	if (rtlpriv->dm.useramask) {
808 		tcb_desc->ratr_index = ratr_index;
809 		/* TODO we will differentiate adhoc and station future  */
810 		if (mac->opmode == NL80211_IFTYPE_STATION ||
811 		    mac->opmode == NL80211_IFTYPE_MESH_POINT) {
812 			tcb_desc->mac_id = 0;
813 
814 			if (sta &&
815 			    (rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID))
816 				;	/* use sta_entry->ratr_index */
817 			else if (mac->mode == WIRELESS_MODE_AC_5G)
818 				tcb_desc->ratr_index =
819 					SET_RATE_ID(RATR_INX_WIRELESS_AC_5N);
820 			else if (mac->mode == WIRELESS_MODE_AC_24G)
821 				tcb_desc->ratr_index =
822 					SET_RATE_ID(RATR_INX_WIRELESS_AC_24N);
823 			else if (mac->mode == WIRELESS_MODE_N_24G)
824 				tcb_desc->ratr_index =
825 					SET_RATE_ID(RATR_INX_WIRELESS_NGB);
826 			else if (mac->mode == WIRELESS_MODE_N_5G)
827 				tcb_desc->ratr_index =
828 					SET_RATE_ID(RATR_INX_WIRELESS_NG);
829 			else if (mac->mode & WIRELESS_MODE_G)
830 				tcb_desc->ratr_index =
831 					SET_RATE_ID(RATR_INX_WIRELESS_GB);
832 			else if (mac->mode & WIRELESS_MODE_B)
833 				tcb_desc->ratr_index =
834 					SET_RATE_ID(RATR_INX_WIRELESS_B);
835 			else if (mac->mode & WIRELESS_MODE_A)
836 				tcb_desc->ratr_index =
837 					SET_RATE_ID(RATR_INX_WIRELESS_G);
838 
839 		} else if (mac->opmode == NL80211_IFTYPE_AP ||
840 			mac->opmode == NL80211_IFTYPE_ADHOC) {
841 			if (NULL != sta) {
842 				if (sta->aid > 0)
843 					tcb_desc->mac_id = sta->aid + 1;
844 				else
845 					tcb_desc->mac_id = 1;
846 			} else {
847 				tcb_desc->mac_id = 0;
848 			}
849 		}
850 	}
851 #undef SET_RATE_ID
852 }
853 
_rtl_query_bandwidth_mode(struct ieee80211_hw * hw,struct ieee80211_sta * sta,struct rtl_tcb_desc * tcb_desc)854 static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw,
855 				      struct ieee80211_sta *sta,
856 				      struct rtl_tcb_desc *tcb_desc)
857 {
858 	struct rtl_priv *rtlpriv = rtl_priv(hw);
859 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
860 
861 	tcb_desc->packet_bw = false;
862 	if (!sta)
863 		return;
864 	if (mac->opmode == NL80211_IFTYPE_AP ||
865 	    mac->opmode == NL80211_IFTYPE_ADHOC ||
866 	    mac->opmode == NL80211_IFTYPE_MESH_POINT) {
867 		if (!(sta->deflink.ht_cap.ht_supported) ||
868 		    !(sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))
869 			return;
870 	} else if (mac->opmode == NL80211_IFTYPE_STATION) {
871 		if (!mac->bw_40 || !(sta->deflink.ht_cap.ht_supported))
872 			return;
873 	}
874 	if (tcb_desc->multicast || tcb_desc->broadcast)
875 		return;
876 
877 	/*use legency rate, shall use 20MHz */
878 	if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M])
879 		return;
880 
881 	tcb_desc->packet_bw = HT_CHANNEL_WIDTH_20_40;
882 
883 	if (rtlpriv->cfg->spec_ver & RTL_SPEC_SUPPORT_VHT) {
884 		if (mac->opmode == NL80211_IFTYPE_AP ||
885 		    mac->opmode == NL80211_IFTYPE_ADHOC ||
886 		    mac->opmode == NL80211_IFTYPE_MESH_POINT) {
887 			if (!(sta->deflink.vht_cap.vht_supported))
888 				return;
889 		} else if (mac->opmode == NL80211_IFTYPE_STATION) {
890 			if (!mac->bw_80 ||
891 			    !(sta->deflink.vht_cap.vht_supported))
892 				return;
893 		}
894 		if (tcb_desc->hw_rate <=
895 			rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15])
896 			return;
897 		tcb_desc->packet_bw = HT_CHANNEL_WIDTH_80;
898 	}
899 }
900 
_rtl_get_vht_highest_n_rate(struct ieee80211_hw * hw,struct ieee80211_sta * sta)901 static u8 _rtl_get_vht_highest_n_rate(struct ieee80211_hw *hw,
902 				      struct ieee80211_sta *sta)
903 {
904 	struct rtl_priv *rtlpriv = rtl_priv(hw);
905 	struct rtl_phy *rtlphy = &(rtlpriv->phy);
906 	u8 hw_rate;
907 	u16 tx_mcs_map = le16_to_cpu(sta->deflink.vht_cap.vht_mcs.tx_mcs_map);
908 
909 	if ((get_rf_type(rtlphy) == RF_2T2R) &&
910 	    (tx_mcs_map & 0x000c) != 0x000c) {
911 		if ((tx_mcs_map & 0x000c) >> 2 ==
912 			IEEE80211_VHT_MCS_SUPPORT_0_7)
913 			hw_rate =
914 			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS7];
915 		else if ((tx_mcs_map  & 0x000c) >> 2 ==
916 			IEEE80211_VHT_MCS_SUPPORT_0_8)
917 			hw_rate =
918 			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS8];
919 		else
920 			hw_rate =
921 			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
922 	} else {
923 		if ((tx_mcs_map  & 0x0003) ==
924 			IEEE80211_VHT_MCS_SUPPORT_0_7)
925 			hw_rate =
926 			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS7];
927 		else if ((tx_mcs_map  & 0x0003) ==
928 			IEEE80211_VHT_MCS_SUPPORT_0_8)
929 			hw_rate =
930 			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS8];
931 		else
932 			hw_rate =
933 			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
934 	}
935 
936 	return hw_rate;
937 }
938 
_rtl_get_highest_n_rate(struct ieee80211_hw * hw,struct ieee80211_sta * sta)939 static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw,
940 				  struct ieee80211_sta *sta)
941 {
942 	struct rtl_priv *rtlpriv = rtl_priv(hw);
943 	struct rtl_phy *rtlphy = &rtlpriv->phy;
944 	u8 hw_rate;
945 
946 	if (get_rf_type(rtlphy) == RF_2T2R &&
947 	    sta->deflink.ht_cap.mcs.rx_mask[1] != 0)
948 		hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15];
949 	else
950 		hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7];
951 
952 	return hw_rate;
953 }
954 
955 /* mac80211's rate_idx is like this:
956  *
957  * 2.4G band:rx_status->band == NL80211_BAND_2GHZ
958  *
959  * B/G rate:
960  * (rx_status->flag & RX_FLAG_HT) = 0,
961  * DESC_RATE1M-->DESC_RATE54M ==> idx is 0-->11,
962  *
963  * N rate:
964  * (rx_status->flag & RX_FLAG_HT) = 1,
965  * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
966  *
967  * 5G band:rx_status->band == NL80211_BAND_5GHZ
968  * A rate:
969  * (rx_status->flag & RX_FLAG_HT) = 0,
970  * DESC_RATE6M-->DESC_RATE54M ==> idx is 0-->7,
971  *
972  * N rate:
973  * (rx_status->flag & RX_FLAG_HT) = 1,
974  * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
975  *
976  * VHT rates:
977  * DESC_RATEVHT1SS_MCS0-->DESC_RATEVHT1SS_MCS9 ==> idx is 0-->9
978  * DESC_RATEVHT2SS_MCS0-->DESC_RATEVHT2SS_MCS9 ==> idx is 0-->9
979  */
rtlwifi_rate_mapping(struct ieee80211_hw * hw,bool isht,bool isvht,u8 desc_rate)980 int rtlwifi_rate_mapping(struct ieee80211_hw *hw, bool isht, bool isvht,
981 			 u8 desc_rate)
982 {
983 	int rate_idx;
984 
985 	if (isvht) {
986 		switch (desc_rate) {
987 		case DESC_RATEVHT1SS_MCS0:
988 			rate_idx = 0;
989 			break;
990 		case DESC_RATEVHT1SS_MCS1:
991 			rate_idx = 1;
992 			break;
993 		case DESC_RATEVHT1SS_MCS2:
994 			rate_idx = 2;
995 			break;
996 		case DESC_RATEVHT1SS_MCS3:
997 			rate_idx = 3;
998 			break;
999 		case DESC_RATEVHT1SS_MCS4:
1000 			rate_idx = 4;
1001 			break;
1002 		case DESC_RATEVHT1SS_MCS5:
1003 			rate_idx = 5;
1004 			break;
1005 		case DESC_RATEVHT1SS_MCS6:
1006 			rate_idx = 6;
1007 			break;
1008 		case DESC_RATEVHT1SS_MCS7:
1009 			rate_idx = 7;
1010 			break;
1011 		case DESC_RATEVHT1SS_MCS8:
1012 			rate_idx = 8;
1013 			break;
1014 		case DESC_RATEVHT1SS_MCS9:
1015 			rate_idx = 9;
1016 			break;
1017 		case DESC_RATEVHT2SS_MCS0:
1018 			rate_idx = 0;
1019 			break;
1020 		case DESC_RATEVHT2SS_MCS1:
1021 			rate_idx = 1;
1022 			break;
1023 		case DESC_RATEVHT2SS_MCS2:
1024 			rate_idx = 2;
1025 			break;
1026 		case DESC_RATEVHT2SS_MCS3:
1027 			rate_idx = 3;
1028 			break;
1029 		case DESC_RATEVHT2SS_MCS4:
1030 			rate_idx = 4;
1031 			break;
1032 		case DESC_RATEVHT2SS_MCS5:
1033 			rate_idx = 5;
1034 			break;
1035 		case DESC_RATEVHT2SS_MCS6:
1036 			rate_idx = 6;
1037 			break;
1038 		case DESC_RATEVHT2SS_MCS7:
1039 			rate_idx = 7;
1040 			break;
1041 		case DESC_RATEVHT2SS_MCS8:
1042 			rate_idx = 8;
1043 			break;
1044 		case DESC_RATEVHT2SS_MCS9:
1045 			rate_idx = 9;
1046 			break;
1047 		default:
1048 			rate_idx = 0;
1049 			break;
1050 		}
1051 		return rate_idx;
1052 	}
1053 	if (false == isht) {
1054 		if (NL80211_BAND_2GHZ == hw->conf.chandef.chan->band) {
1055 			switch (desc_rate) {
1056 			case DESC_RATE1M:
1057 				rate_idx = 0;
1058 				break;
1059 			case DESC_RATE2M:
1060 				rate_idx = 1;
1061 				break;
1062 			case DESC_RATE5_5M:
1063 				rate_idx = 2;
1064 				break;
1065 			case DESC_RATE11M:
1066 				rate_idx = 3;
1067 				break;
1068 			case DESC_RATE6M:
1069 				rate_idx = 4;
1070 				break;
1071 			case DESC_RATE9M:
1072 				rate_idx = 5;
1073 				break;
1074 			case DESC_RATE12M:
1075 				rate_idx = 6;
1076 				break;
1077 			case DESC_RATE18M:
1078 				rate_idx = 7;
1079 				break;
1080 			case DESC_RATE24M:
1081 				rate_idx = 8;
1082 				break;
1083 			case DESC_RATE36M:
1084 				rate_idx = 9;
1085 				break;
1086 			case DESC_RATE48M:
1087 				rate_idx = 10;
1088 				break;
1089 			case DESC_RATE54M:
1090 				rate_idx = 11;
1091 				break;
1092 			default:
1093 				rate_idx = 0;
1094 				break;
1095 			}
1096 		} else {
1097 			switch (desc_rate) {
1098 			case DESC_RATE6M:
1099 				rate_idx = 0;
1100 				break;
1101 			case DESC_RATE9M:
1102 				rate_idx = 1;
1103 				break;
1104 			case DESC_RATE12M:
1105 				rate_idx = 2;
1106 				break;
1107 			case DESC_RATE18M:
1108 				rate_idx = 3;
1109 				break;
1110 			case DESC_RATE24M:
1111 				rate_idx = 4;
1112 				break;
1113 			case DESC_RATE36M:
1114 				rate_idx = 5;
1115 				break;
1116 			case DESC_RATE48M:
1117 				rate_idx = 6;
1118 				break;
1119 			case DESC_RATE54M:
1120 				rate_idx = 7;
1121 				break;
1122 			default:
1123 				rate_idx = 0;
1124 				break;
1125 			}
1126 		}
1127 	} else {
1128 		switch (desc_rate) {
1129 		case DESC_RATEMCS0:
1130 			rate_idx = 0;
1131 			break;
1132 		case DESC_RATEMCS1:
1133 			rate_idx = 1;
1134 			break;
1135 		case DESC_RATEMCS2:
1136 			rate_idx = 2;
1137 			break;
1138 		case DESC_RATEMCS3:
1139 			rate_idx = 3;
1140 			break;
1141 		case DESC_RATEMCS4:
1142 			rate_idx = 4;
1143 			break;
1144 		case DESC_RATEMCS5:
1145 			rate_idx = 5;
1146 			break;
1147 		case DESC_RATEMCS6:
1148 			rate_idx = 6;
1149 			break;
1150 		case DESC_RATEMCS7:
1151 			rate_idx = 7;
1152 			break;
1153 		case DESC_RATEMCS8:
1154 			rate_idx = 8;
1155 			break;
1156 		case DESC_RATEMCS9:
1157 			rate_idx = 9;
1158 			break;
1159 		case DESC_RATEMCS10:
1160 			rate_idx = 10;
1161 			break;
1162 		case DESC_RATEMCS11:
1163 			rate_idx = 11;
1164 			break;
1165 		case DESC_RATEMCS12:
1166 			rate_idx = 12;
1167 			break;
1168 		case DESC_RATEMCS13:
1169 			rate_idx = 13;
1170 			break;
1171 		case DESC_RATEMCS14:
1172 			rate_idx = 14;
1173 			break;
1174 		case DESC_RATEMCS15:
1175 			rate_idx = 15;
1176 			break;
1177 		default:
1178 			rate_idx = 0;
1179 			break;
1180 		}
1181 	}
1182 	return rate_idx;
1183 }
1184 EXPORT_SYMBOL(rtlwifi_rate_mapping);
1185 
_rtl_get_tx_hw_rate(struct ieee80211_hw * hw,struct ieee80211_tx_info * info)1186 static u8 _rtl_get_tx_hw_rate(struct ieee80211_hw *hw,
1187 			      struct ieee80211_tx_info *info)
1188 {
1189 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1190 	struct ieee80211_tx_rate *r = &info->status.rates[0];
1191 	struct ieee80211_rate *txrate;
1192 	u8 hw_value = 0x0;
1193 
1194 	if (r->flags & IEEE80211_TX_RC_MCS) {
1195 		/* HT MCS0-15 */
1196 		hw_value = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15] - 15 +
1197 			   r->idx;
1198 	} else if (r->flags & IEEE80211_TX_RC_VHT_MCS) {
1199 		/* VHT MCS0-9, NSS */
1200 		if (ieee80211_rate_get_vht_nss(r) == 2)
1201 			hw_value = rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
1202 		else
1203 			hw_value = rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
1204 
1205 		hw_value = hw_value - 9 + ieee80211_rate_get_vht_mcs(r);
1206 	} else {
1207 		/* legacy */
1208 		txrate = ieee80211_get_tx_rate(hw, info);
1209 
1210 		if (txrate)
1211 			hw_value = txrate->hw_value;
1212 	}
1213 
1214 	/* check 5G band */
1215 	if (rtlpriv->rtlhal.current_bandtype == BAND_ON_5G &&
1216 	    hw_value < rtlpriv->cfg->maps[RTL_RC_OFDM_RATE6M])
1217 		hw_value = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE6M];
1218 
1219 	return hw_value;
1220 }
1221 
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)1222 void rtl_get_tcb_desc(struct ieee80211_hw *hw,
1223 		      struct ieee80211_tx_info *info,
1224 		      struct ieee80211_sta *sta,
1225 		      struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc)
1226 {
1227 #define SET_RATE_ID(rate_id)					\
1228 	({typeof(rate_id) _id = rate_id;			\
1229 	  ((rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID) ?	\
1230 		rtl_mrate_idx_to_arfr_id(hw, _id,		\
1231 			(sta_entry ? sta_entry->wireless_mode :	\
1232 			 WIRELESS_MODE_G)) :			\
1233 		_id); })
1234 
1235 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1236 	struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
1237 	struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1238 	struct rtl_sta_info *sta_entry =
1239 		(sta ? (struct rtl_sta_info *)sta->drv_priv : NULL);
1240 
1241 	__le16 fc = rtl_get_fc(skb);
1242 
1243 	tcb_desc->hw_rate = _rtl_get_tx_hw_rate(hw, info);
1244 
1245 	if (rtl_is_tx_report_skb(hw, skb))
1246 		tcb_desc->use_spe_rpt = 1;
1247 
1248 	if (ieee80211_is_data(fc)) {
1249 		/*
1250 		 *we set data rate INX 0
1251 		 *in rtl_rc.c   if skb is special data or
1252 		 *mgt which need low data rate.
1253 		 */
1254 
1255 		/*
1256 		 *So tcb_desc->hw_rate is just used for
1257 		 *special data and mgt frames
1258 		 */
1259 		if (info->control.rates[0].idx == 0 ||
1260 				ieee80211_is_nullfunc(fc)) {
1261 			tcb_desc->use_driver_rate = true;
1262 			tcb_desc->ratr_index =
1263 					SET_RATE_ID(RATR_INX_WIRELESS_MC);
1264 
1265 			tcb_desc->disable_ratefallback = 1;
1266 		} else {
1267 			/*
1268 			 *because hw will nerver use hw_rate
1269 			 *when tcb_desc->use_driver_rate = false
1270 			 *so we never set highest N rate here,
1271 			 *and N rate will all be controlled by FW
1272 			 *when tcb_desc->use_driver_rate = false
1273 			 */
1274 			if (sta && sta->deflink.vht_cap.vht_supported) {
1275 				tcb_desc->hw_rate =
1276 				_rtl_get_vht_highest_n_rate(hw, sta);
1277 			} else {
1278 				if (sta && sta->deflink.ht_cap.ht_supported) {
1279 					tcb_desc->hw_rate =
1280 						_rtl_get_highest_n_rate(hw, sta);
1281 				} else {
1282 					if (rtlmac->mode == WIRELESS_MODE_B) {
1283 						tcb_desc->hw_rate =
1284 						    rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M];
1285 					} else {
1286 						tcb_desc->hw_rate =
1287 						    rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M];
1288 					}
1289 				}
1290 			}
1291 		}
1292 
1293 		if (is_multicast_ether_addr(hdr->addr1))
1294 			tcb_desc->multicast = 1;
1295 		else if (is_broadcast_ether_addr(hdr->addr1))
1296 			tcb_desc->broadcast = 1;
1297 
1298 		_rtl_txrate_selectmode(hw, sta, tcb_desc);
1299 		_rtl_query_bandwidth_mode(hw, sta, tcb_desc);
1300 		_rtl_qurey_shortpreamble_mode(hw, tcb_desc, info);
1301 		_rtl_query_shortgi(hw, sta, tcb_desc, info);
1302 		_rtl_query_protection_mode(hw, tcb_desc, info);
1303 	} else {
1304 		tcb_desc->use_driver_rate = true;
1305 		tcb_desc->ratr_index = SET_RATE_ID(RATR_INX_WIRELESS_MC);
1306 		tcb_desc->disable_ratefallback = 1;
1307 		tcb_desc->mac_id = 0;
1308 		tcb_desc->packet_bw = false;
1309 	}
1310 #undef SET_RATE_ID
1311 }
1312 EXPORT_SYMBOL(rtl_get_tcb_desc);
1313 
rtl_tx_mgmt_proc(struct ieee80211_hw * hw,struct sk_buff * skb)1314 bool rtl_tx_mgmt_proc(struct ieee80211_hw *hw, struct sk_buff *skb)
1315 {
1316 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1317 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1318 	__le16 fc = rtl_get_fc(skb);
1319 
1320 	if (ieee80211_is_auth(fc)) {
1321 		rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n");
1322 
1323 		mac->link_state = MAC80211_LINKING;
1324 		/* Dul mac */
1325 		rtlpriv->phy.need_iqk = true;
1326 
1327 	}
1328 
1329 	return true;
1330 }
1331 EXPORT_SYMBOL_GPL(rtl_tx_mgmt_proc);
1332 
1333 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw, u8 *sa,
1334 				u8 *bssid, u16 tid);
1335 
process_agg_start(struct ieee80211_hw * hw,struct ieee80211_hdr * hdr,u16 tid)1336 static void process_agg_start(struct ieee80211_hw *hw,
1337 			      struct ieee80211_hdr *hdr, u16 tid)
1338 {
1339 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1340 	struct ieee80211_rx_status rx_status = { 0 };
1341 	struct sk_buff *skb_delba = NULL;
1342 
1343 	skb_delba = rtl_make_del_ba(hw, hdr->addr2, hdr->addr3, tid);
1344 	if (skb_delba) {
1345 		rx_status.freq = hw->conf.chandef.chan->center_freq;
1346 		rx_status.band = hw->conf.chandef.chan->band;
1347 		rx_status.flag |= RX_FLAG_DECRYPTED;
1348 		rx_status.flag |= RX_FLAG_MACTIME_START;
1349 		rx_status.rate_idx = 0;
1350 		rx_status.signal = 50 + 10;
1351 		memcpy(IEEE80211_SKB_RXCB(skb_delba),
1352 		       &rx_status, sizeof(rx_status));
1353 		RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG,
1354 			      "fake del\n",
1355 			      skb_delba->data,
1356 			      skb_delba->len);
1357 		ieee80211_rx_irqsafe(hw, skb_delba);
1358 	}
1359 }
1360 
rtl_action_proc(struct ieee80211_hw * hw,struct sk_buff * skb,u8 is_tx)1361 bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
1362 {
1363 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1364 	struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1365 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1366 	__le16 fc = rtl_get_fc(skb);
1367 	u8 *act = (u8 *)(((u8 *)skb->data + MAC80211_3ADDR_LEN));
1368 	u8 category;
1369 
1370 	if (!ieee80211_is_action(fc))
1371 		return true;
1372 
1373 	category = *act;
1374 	act++;
1375 	switch (category) {
1376 	case ACT_CAT_BA:
1377 		switch (*act) {
1378 		case ACT_ADDBAREQ:
1379 			if (mac->act_scanning)
1380 				return false;
1381 
1382 			rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1383 				"%s ACT_ADDBAREQ From :%pM\n",
1384 				is_tx ? "Tx" : "Rx", hdr->addr2);
1385 			RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, "req\n",
1386 				skb->data, skb->len);
1387 			if (!is_tx) {
1388 				struct ieee80211_sta *sta = NULL;
1389 				struct rtl_sta_info *sta_entry = NULL;
1390 				struct rtl_tid_data *tid_data;
1391 				struct ieee80211_mgmt *mgmt = (void *)skb->data;
1392 				u16 capab = 0, tid = 0;
1393 
1394 				rcu_read_lock();
1395 				sta = rtl_find_sta(hw, hdr->addr3);
1396 				if (sta == NULL) {
1397 					rtl_dbg(rtlpriv, COMP_SEND | COMP_RECV,
1398 						DBG_DMESG, "sta is NULL\n");
1399 					rcu_read_unlock();
1400 					return true;
1401 				}
1402 
1403 				sta_entry =
1404 					(struct rtl_sta_info *)sta->drv_priv;
1405 				capab =
1406 				  le16_to_cpu(mgmt->u.action.u.addba_req.capab);
1407 				tid = (capab &
1408 				       IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
1409 				if (tid >= MAX_TID_COUNT) {
1410 					rcu_read_unlock();
1411 					return true;
1412 				}
1413 				tid_data = &sta_entry->tids[tid];
1414 				if (tid_data->agg.rx_agg_state ==
1415 				    RTL_RX_AGG_START)
1416 					process_agg_start(hw, hdr, tid);
1417 				rcu_read_unlock();
1418 			}
1419 			break;
1420 		case ACT_ADDBARSP:
1421 			rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1422 				"%s ACT_ADDBARSP From :%pM\n",
1423 				is_tx ? "Tx" : "Rx", hdr->addr2);
1424 			break;
1425 		case ACT_DELBA:
1426 			rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1427 				"ACT_ADDBADEL From :%pM\n", hdr->addr2);
1428 			break;
1429 		}
1430 		break;
1431 	default:
1432 		break;
1433 	}
1434 
1435 	return true;
1436 }
1437 EXPORT_SYMBOL_GPL(rtl_action_proc);
1438 
setup_special_tx(struct rtl_priv * rtlpriv,struct rtl_ps_ctl * ppsc,int type)1439 static void setup_special_tx(struct rtl_priv *rtlpriv, struct rtl_ps_ctl *ppsc,
1440 			     int type)
1441 {
1442 	struct ieee80211_hw *hw = rtlpriv->hw;
1443 
1444 	rtlpriv->ra.is_special_data = true;
1445 	if (rtlpriv->cfg->ops->get_btc_status())
1446 		rtlpriv->btcoexist.btc_ops->btc_special_packet_notify(
1447 					rtlpriv, type);
1448 	rtl_lps_leave(hw, false);
1449 	ppsc->last_delaylps_stamp_jiffies = jiffies;
1450 }
1451 
rtl_skb_ether_type_ptr(struct ieee80211_hw * hw,struct sk_buff * skb,bool is_enc)1452 static const u8 *rtl_skb_ether_type_ptr(struct ieee80211_hw *hw,
1453 					struct sk_buff *skb, bool is_enc)
1454 {
1455 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1456 	u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb);
1457 	u8 encrypt_header_len = 0;
1458 	u8 offset;
1459 
1460 	switch (rtlpriv->sec.pairwise_enc_algorithm) {
1461 	case WEP40_ENCRYPTION:
1462 	case WEP104_ENCRYPTION:
1463 		encrypt_header_len = 4;/*WEP_IV_LEN*/
1464 		break;
1465 	case TKIP_ENCRYPTION:
1466 		encrypt_header_len = 8;/*TKIP_IV_LEN*/
1467 		break;
1468 	case AESCCMP_ENCRYPTION:
1469 		encrypt_header_len = 8;/*CCMP_HDR_LEN;*/
1470 		break;
1471 	default:
1472 		break;
1473 	}
1474 
1475 	offset = mac_hdr_len + SNAP_SIZE;
1476 	if (is_enc)
1477 		offset += encrypt_header_len;
1478 
1479 	return skb->data + offset;
1480 }
1481 
1482 /*should call before software enc*/
rtl_is_special_data(struct ieee80211_hw * hw,struct sk_buff * skb,u8 is_tx,bool is_enc)1483 u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx,
1484 		       bool is_enc)
1485 {
1486 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1487 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1488 	__le16 fc = rtl_get_fc(skb);
1489 	u16 ether_type;
1490 	const u8 *ether_type_ptr;
1491 	const struct iphdr *ip;
1492 
1493 	if (!ieee80211_is_data(fc))
1494 		goto end;
1495 
1496 	ether_type_ptr = rtl_skb_ether_type_ptr(hw, skb, is_enc);
1497 	ether_type = be16_to_cpup((__be16 *)ether_type_ptr);
1498 
1499 	if (ETH_P_IP == ether_type) {
1500 		ip = (struct iphdr *)((u8 *)ether_type_ptr +
1501 		     PROTOC_TYPE_SIZE);
1502 		if (IPPROTO_UDP == ip->protocol) {
1503 			struct udphdr *udp = (struct udphdr *)((u8 *)ip +
1504 							       (ip->ihl << 2));
1505 			if (((((u8 *)udp)[1] == 68) &&
1506 			     (((u8 *)udp)[3] == 67)) ||
1507 			    ((((u8 *)udp)[1] == 67) &&
1508 			     (((u8 *)udp)[3] == 68))) {
1509 				/* 68 : UDP BOOTP client
1510 				 * 67 : UDP BOOTP server
1511 				 */
1512 				rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV),
1513 					DBG_DMESG, "dhcp %s !!\n",
1514 					(is_tx) ? "Tx" : "Rx");
1515 
1516 				if (is_tx)
1517 					setup_special_tx(rtlpriv, ppsc,
1518 							 PACKET_DHCP);
1519 
1520 				return true;
1521 			}
1522 		}
1523 	} else if (ETH_P_ARP == ether_type) {
1524 		if (is_tx)
1525 			setup_special_tx(rtlpriv, ppsc, PACKET_ARP);
1526 
1527 		return true;
1528 	} else if (ETH_P_PAE == ether_type) {
1529 		/* EAPOL is seens as in-4way */
1530 		rtlpriv->btcoexist.btc_info.in_4way = true;
1531 		rtlpriv->btcoexist.btc_info.in_4way_ts = jiffies;
1532 
1533 		rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1534 			"802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx");
1535 
1536 		if (is_tx) {
1537 			rtlpriv->ra.is_special_data = true;
1538 			rtl_lps_leave(hw, false);
1539 			ppsc->last_delaylps_stamp_jiffies = jiffies;
1540 
1541 			setup_special_tx(rtlpriv, ppsc, PACKET_EAPOL);
1542 		}
1543 
1544 		return true;
1545 	} else if (ETH_P_IPV6 == ether_type) {
1546 		/* TODO: Handle any IPv6 cases that need special handling.
1547 		 * For now, always return false
1548 		 */
1549 		goto end;
1550 	}
1551 
1552 end:
1553 	rtlpriv->ra.is_special_data = false;
1554 	return false;
1555 }
1556 EXPORT_SYMBOL_GPL(rtl_is_special_data);
1557 
rtl_tx_ackqueue(struct ieee80211_hw * hw,struct sk_buff * skb)1558 void rtl_tx_ackqueue(struct ieee80211_hw *hw, struct sk_buff *skb)
1559 {
1560 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1561 	struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1562 
1563 	__skb_queue_tail(&tx_report->queue, skb);
1564 }
1565 EXPORT_SYMBOL_GPL(rtl_tx_ackqueue);
1566 
rtl_tx_status(struct ieee80211_hw * hw,struct sk_buff * skb,bool ack)1567 static void rtl_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb,
1568 			  bool ack)
1569 {
1570 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1571 	struct ieee80211_tx_info *info;
1572 
1573 	info = IEEE80211_SKB_CB(skb);
1574 	ieee80211_tx_info_clear_status(info);
1575 	if (ack) {
1576 		rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_LOUD,
1577 			"tx report: ack\n");
1578 		info->flags |= IEEE80211_TX_STAT_ACK;
1579 	} else {
1580 		rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_LOUD,
1581 			"tx report: not ack\n");
1582 		info->flags &= ~IEEE80211_TX_STAT_ACK;
1583 	}
1584 	ieee80211_tx_status_irqsafe(hw, skb);
1585 }
1586 
rtl_is_tx_report_skb(struct ieee80211_hw * hw,struct sk_buff * skb)1587 bool rtl_is_tx_report_skb(struct ieee80211_hw *hw, struct sk_buff *skb)
1588 {
1589 	u16 ether_type;
1590 	const u8 *ether_type_ptr;
1591 	__le16 fc = rtl_get_fc(skb);
1592 
1593 	ether_type_ptr = rtl_skb_ether_type_ptr(hw, skb, true);
1594 	ether_type = be16_to_cpup((__be16 *)ether_type_ptr);
1595 
1596 	if (ether_type == ETH_P_PAE || ieee80211_is_nullfunc(fc))
1597 		return true;
1598 
1599 	return false;
1600 }
1601 
rtl_get_tx_report_sn(struct ieee80211_hw * hw,struct rtlwifi_tx_info * tx_info)1602 static u16 rtl_get_tx_report_sn(struct ieee80211_hw *hw,
1603 				struct rtlwifi_tx_info *tx_info)
1604 {
1605 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1606 	struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1607 	u16 sn;
1608 
1609 	/* SW_DEFINE[11:8] are reserved (driver fills zeros)
1610 	 * SW_DEFINE[7:2] are used by driver
1611 	 * SW_DEFINE[1:0] are reserved for firmware (driver fills zeros)
1612 	 */
1613 	sn = (atomic_inc_return(&tx_report->sn) & 0x003F) << 2;
1614 
1615 	tx_report->last_sent_sn = sn;
1616 	tx_report->last_sent_time = jiffies;
1617 	tx_info->sn = sn;
1618 	tx_info->send_time = tx_report->last_sent_time;
1619 	rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_DMESG,
1620 		"Send TX-Report sn=0x%X\n", sn);
1621 
1622 	return sn;
1623 }
1624 
rtl_set_tx_report(struct rtl_tcb_desc * ptcb_desc,u8 * pdesc,struct ieee80211_hw * hw,struct rtlwifi_tx_info * tx_info)1625 void rtl_set_tx_report(struct rtl_tcb_desc *ptcb_desc, u8 *pdesc,
1626 		       struct ieee80211_hw *hw, struct rtlwifi_tx_info *tx_info)
1627 {
1628 	if (ptcb_desc->use_spe_rpt) {
1629 		u16 sn = rtl_get_tx_report_sn(hw, tx_info);
1630 
1631 		SET_TX_DESC_SPE_RPT(pdesc, 1);
1632 		SET_TX_DESC_SW_DEFINE(pdesc, sn);
1633 	}
1634 }
1635 EXPORT_SYMBOL_GPL(rtl_set_tx_report);
1636 
rtl_tx_report_handler(struct ieee80211_hw * hw,u8 * tmp_buf,u8 c2h_cmd_len)1637 void rtl_tx_report_handler(struct ieee80211_hw *hw, u8 *tmp_buf, u8 c2h_cmd_len)
1638 {
1639 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1640 	struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1641 	struct rtlwifi_tx_info *tx_info;
1642 	struct sk_buff_head *queue = &tx_report->queue;
1643 	struct sk_buff *skb;
1644 	u16 sn;
1645 	u8 st, retry;
1646 
1647 	if (rtlpriv->cfg->spec_ver & RTL_SPEC_EXT_C2H) {
1648 		sn = GET_TX_REPORT_SN_V2(tmp_buf);
1649 		st = GET_TX_REPORT_ST_V2(tmp_buf);
1650 		retry = GET_TX_REPORT_RETRY_V2(tmp_buf);
1651 	} else {
1652 		sn = GET_TX_REPORT_SN_V1(tmp_buf);
1653 		st = GET_TX_REPORT_ST_V1(tmp_buf);
1654 		retry = GET_TX_REPORT_RETRY_V1(tmp_buf);
1655 	}
1656 
1657 	tx_report->last_recv_sn = sn;
1658 
1659 	skb_queue_walk(queue, skb) {
1660 		tx_info = rtl_tx_skb_cb_info(skb);
1661 		if (tx_info->sn == sn) {
1662 			skb_unlink(skb, queue);
1663 			rtl_tx_status(hw, skb, st == 0);
1664 			break;
1665 		}
1666 	}
1667 	rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_DMESG,
1668 		"Recv TX-Report st=0x%02X sn=0x%X retry=0x%X\n",
1669 		st, sn, retry);
1670 }
1671 EXPORT_SYMBOL_GPL(rtl_tx_report_handler);
1672 
rtl_check_tx_report_acked(struct ieee80211_hw * hw)1673 bool rtl_check_tx_report_acked(struct ieee80211_hw *hw)
1674 {
1675 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1676 	struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1677 
1678 	if (tx_report->last_sent_sn == tx_report->last_recv_sn)
1679 		return true;
1680 
1681 	if (time_before(tx_report->last_sent_time + 3 * HZ, jiffies)) {
1682 		rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_WARNING,
1683 			"Check TX-Report timeout!! s_sn=0x%X r_sn=0x%X\n",
1684 			tx_report->last_sent_sn, tx_report->last_recv_sn);
1685 		return true;	/* 3 sec. (timeout) seen as acked */
1686 	}
1687 
1688 	return false;
1689 }
1690 
rtl_wait_tx_report_acked(struct ieee80211_hw * hw,u32 wait_ms)1691 void rtl_wait_tx_report_acked(struct ieee80211_hw *hw, u32 wait_ms)
1692 {
1693 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1694 	int i;
1695 
1696 	for (i = 0; i < wait_ms; i++) {
1697 		if (rtl_check_tx_report_acked(hw))
1698 			break;
1699 		usleep_range(1000, 2000);
1700 		rtl_dbg(rtlpriv, COMP_SEC, DBG_DMESG,
1701 			"Wait 1ms (%d/%d) to disable key.\n", i, wait_ms);
1702 	}
1703 }
1704 
rtl_get_hal_edca_param(struct ieee80211_hw * hw,struct ieee80211_vif * vif,enum wireless_mode wirelessmode,struct ieee80211_tx_queue_params * param)1705 u32 rtl_get_hal_edca_param(struct ieee80211_hw *hw,
1706 			   struct ieee80211_vif *vif,
1707 			   enum wireless_mode wirelessmode,
1708 			   struct ieee80211_tx_queue_params *param)
1709 {
1710 	u32 reg = 0;
1711 	u8 sifstime = 10;
1712 	u8 slottime = 20;
1713 
1714 	/* AIFS = AIFSN * slot time + SIFS */
1715 	switch (wirelessmode) {
1716 	case WIRELESS_MODE_A:
1717 	case WIRELESS_MODE_N_24G:
1718 	case WIRELESS_MODE_N_5G:
1719 	case WIRELESS_MODE_AC_5G:
1720 	case WIRELESS_MODE_AC_24G:
1721 		sifstime = 16;
1722 		slottime = 9;
1723 		break;
1724 	case WIRELESS_MODE_G:
1725 		slottime = (vif->bss_conf.use_short_slot ? 9 : 20);
1726 		break;
1727 	default:
1728 		break;
1729 	}
1730 
1731 	reg |= (param->txop & 0x7FF) << 16;
1732 	reg |= (fls(param->cw_max) & 0xF) << 12;
1733 	reg |= (fls(param->cw_min) & 0xF) << 8;
1734 	reg |= (param->aifs & 0x0F) * slottime + sifstime;
1735 
1736 	return reg;
1737 }
1738 EXPORT_SYMBOL_GPL(rtl_get_hal_edca_param);
1739 
1740 /*********************************************************
1741  *
1742  * functions called by core.c
1743  *
1744  *********************************************************/
rtl_tx_agg_start(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u16 tid,u16 * ssn)1745 int rtl_tx_agg_start(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1746 		     struct ieee80211_sta *sta, u16 tid, u16 *ssn)
1747 {
1748 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1749 	struct rtl_tid_data *tid_data;
1750 	struct rtl_sta_info *sta_entry = NULL;
1751 
1752 	if (sta == NULL)
1753 		return -EINVAL;
1754 
1755 	if (unlikely(tid >= MAX_TID_COUNT))
1756 		return -EINVAL;
1757 
1758 	sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1759 	tid_data = &sta_entry->tids[tid];
1760 
1761 	rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG,
1762 		"on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1763 		*ssn);
1764 
1765 	tid_data->agg.agg_state = RTL_AGG_START;
1766 
1767 	return IEEE80211_AMPDU_TX_START_IMMEDIATE;
1768 }
1769 
rtl_tx_agg_stop(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u16 tid)1770 int rtl_tx_agg_stop(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1771 		    struct ieee80211_sta *sta, u16 tid)
1772 {
1773 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1774 	struct rtl_sta_info *sta_entry = NULL;
1775 
1776 	if (sta == NULL)
1777 		return -EINVAL;
1778 
1779 	rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG,
1780 		"on ra = %pM tid = %d\n", sta->addr, tid);
1781 
1782 	if (unlikely(tid >= MAX_TID_COUNT))
1783 		return -EINVAL;
1784 
1785 	sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1786 	sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP;
1787 
1788 	ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1789 	return 0;
1790 }
1791 
rtl_rx_agg_start(struct ieee80211_hw * hw,struct ieee80211_sta * sta,u16 tid)1792 int rtl_rx_agg_start(struct ieee80211_hw *hw,
1793 		     struct ieee80211_sta *sta, u16 tid)
1794 {
1795 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1796 	struct rtl_tid_data *tid_data;
1797 	struct rtl_sta_info *sta_entry = NULL;
1798 	u8 reject_agg;
1799 
1800 	if (sta == NULL)
1801 		return -EINVAL;
1802 
1803 	if (unlikely(tid >= MAX_TID_COUNT))
1804 		return -EINVAL;
1805 
1806 	if (rtlpriv->cfg->ops->get_btc_status()) {
1807 		rtlpriv->btcoexist.btc_ops->btc_get_ampdu_cfg(rtlpriv,
1808 							      &reject_agg,
1809 							      NULL, NULL);
1810 		if (reject_agg)
1811 			return -EINVAL;
1812 	}
1813 
1814 	sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1815 	tid_data = &sta_entry->tids[tid];
1816 
1817 	rtl_dbg(rtlpriv, COMP_RECV, DBG_DMESG,
1818 		"on ra = %pM tid = %d\n", sta->addr, tid);
1819 
1820 	tid_data->agg.rx_agg_state = RTL_RX_AGG_START;
1821 	return 0;
1822 }
1823 
rtl_rx_agg_stop(struct ieee80211_hw * hw,struct ieee80211_sta * sta,u16 tid)1824 int rtl_rx_agg_stop(struct ieee80211_hw *hw,
1825 		    struct ieee80211_sta *sta, u16 tid)
1826 {
1827 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1828 	struct rtl_sta_info *sta_entry = NULL;
1829 
1830 	if (sta == NULL)
1831 		return -EINVAL;
1832 
1833 	rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG,
1834 		"on ra = %pM tid = %d\n", sta->addr, tid);
1835 
1836 	if (unlikely(tid >= MAX_TID_COUNT))
1837 		return -EINVAL;
1838 
1839 	sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1840 	sta_entry->tids[tid].agg.rx_agg_state = RTL_RX_AGG_STOP;
1841 
1842 	return 0;
1843 }
1844 
rtl_tx_agg_oper(struct ieee80211_hw * hw,struct ieee80211_sta * sta,u16 tid)1845 int rtl_tx_agg_oper(struct ieee80211_hw *hw,
1846 		struct ieee80211_sta *sta, u16 tid)
1847 {
1848 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1849 	struct rtl_sta_info *sta_entry = NULL;
1850 
1851 	if (sta == NULL)
1852 		return -EINVAL;
1853 
1854 	rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG,
1855 		"on ra = %pM tid = %d\n", sta->addr, tid);
1856 
1857 	if (unlikely(tid >= MAX_TID_COUNT))
1858 		return -EINVAL;
1859 
1860 	sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1861 	sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL;
1862 
1863 	return 0;
1864 }
1865 
rtl_rx_ampdu_apply(struct rtl_priv * rtlpriv)1866 void rtl_rx_ampdu_apply(struct rtl_priv *rtlpriv)
1867 {
1868 	struct rtl_btc_ops *btc_ops = rtlpriv->btcoexist.btc_ops;
1869 	u8 reject_agg = 0, ctrl_agg_size = 0, agg_size = 0;
1870 
1871 	if (rtlpriv->cfg->ops->get_btc_status())
1872 		btc_ops->btc_get_ampdu_cfg(rtlpriv, &reject_agg,
1873 					   &ctrl_agg_size, &agg_size);
1874 
1875 	rtl_dbg(rtlpriv, COMP_BT_COEXIST, DBG_DMESG,
1876 		"Set RX AMPDU: coex - reject=%d, ctrl_agg_size=%d, size=%d",
1877 		reject_agg, ctrl_agg_size, agg_size);
1878 
1879 	rtlpriv->hw->max_rx_aggregation_subframes =
1880 		(ctrl_agg_size ? agg_size : IEEE80211_MAX_AMPDU_BUF_HT);
1881 }
1882 EXPORT_SYMBOL(rtl_rx_ampdu_apply);
1883 
1884 /*********************************************************
1885  *
1886  * wq & timer callback functions
1887  *
1888  *********************************************************/
1889 /* this function is used for roaming */
rtl_beacon_statistic(struct ieee80211_hw * hw,struct sk_buff * skb)1890 void rtl_beacon_statistic(struct ieee80211_hw *hw, struct sk_buff *skb)
1891 {
1892 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1893 	struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1894 
1895 	if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION)
1896 		return;
1897 
1898 	if (rtlpriv->mac80211.link_state < MAC80211_LINKED)
1899 		return;
1900 
1901 	/* check if this really is a beacon */
1902 	if (!ieee80211_is_beacon(hdr->frame_control) &&
1903 	    !ieee80211_is_probe_resp(hdr->frame_control))
1904 		return;
1905 
1906 	/* min. beacon length + FCS_LEN */
1907 	if (skb->len <= 40 + FCS_LEN)
1908 		return;
1909 
1910 	/* and only beacons from the associated BSSID, please */
1911 	if (!ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid))
1912 		return;
1913 
1914 	rtlpriv->link_info.bcn_rx_inperiod++;
1915 }
1916 EXPORT_SYMBOL_GPL(rtl_beacon_statistic);
1917 
rtl_free_entries_from_scan_list(struct ieee80211_hw * hw)1918 static void rtl_free_entries_from_scan_list(struct ieee80211_hw *hw)
1919 {
1920 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1921 	struct rtl_bssid_entry *entry, *next;
1922 
1923 	list_for_each_entry_safe(entry, next, &rtlpriv->scan_list.list, list) {
1924 		list_del(&entry->list);
1925 		kfree(entry);
1926 		rtlpriv->scan_list.num--;
1927 	}
1928 }
1929 
rtl_free_entries_from_ack_queue(struct ieee80211_hw * hw,bool chk_timeout)1930 static void rtl_free_entries_from_ack_queue(struct ieee80211_hw *hw,
1931 					    bool chk_timeout)
1932 {
1933 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1934 	struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1935 	struct sk_buff_head *queue = &tx_report->queue;
1936 	struct sk_buff *skb, *tmp;
1937 	struct rtlwifi_tx_info *tx_info;
1938 
1939 	skb_queue_walk_safe(queue, skb, tmp) {
1940 		tx_info = rtl_tx_skb_cb_info(skb);
1941 		if (chk_timeout &&
1942 		    time_after(tx_info->send_time + HZ, jiffies))
1943 			continue;
1944 		skb_unlink(skb, queue);
1945 		rtl_tx_status(hw, skb, false);
1946 	}
1947 }
1948 
rtl_scan_list_expire(struct ieee80211_hw * hw)1949 void rtl_scan_list_expire(struct ieee80211_hw *hw)
1950 {
1951 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1952 	struct rtl_bssid_entry *entry, *next;
1953 	unsigned long flags;
1954 
1955 	spin_lock_irqsave(&rtlpriv->locks.scan_list_lock, flags);
1956 
1957 	list_for_each_entry_safe(entry, next, &rtlpriv->scan_list.list, list) {
1958 		/* 180 seconds */
1959 		if (jiffies_to_msecs(jiffies - entry->age) < 180000)
1960 			continue;
1961 
1962 		list_del(&entry->list);
1963 		rtlpriv->scan_list.num--;
1964 
1965 		rtl_dbg(rtlpriv, COMP_SCAN, DBG_LOUD,
1966 			"BSSID=%pM is expire in scan list (total=%d)\n",
1967 			entry->bssid, rtlpriv->scan_list.num);
1968 		kfree(entry);
1969 	}
1970 
1971 	spin_unlock_irqrestore(&rtlpriv->locks.scan_list_lock, flags);
1972 
1973 	rtlpriv->btcoexist.btc_info.ap_num = rtlpriv->scan_list.num;
1974 }
1975 
rtl_collect_scan_list(struct ieee80211_hw * hw,struct sk_buff * skb)1976 void rtl_collect_scan_list(struct ieee80211_hw *hw, struct sk_buff *skb)
1977 {
1978 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1979 	struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1980 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1981 	unsigned long flags;
1982 
1983 	struct rtl_bssid_entry *entry = NULL, *iter;
1984 
1985 	/* check if it is scanning */
1986 	if (!mac->act_scanning)
1987 		return;
1988 
1989 	/* check if this really is a beacon */
1990 	if (!ieee80211_is_beacon(hdr->frame_control) &&
1991 	    !ieee80211_is_probe_resp(hdr->frame_control))
1992 		return;
1993 
1994 	spin_lock_irqsave(&rtlpriv->locks.scan_list_lock, flags);
1995 
1996 	list_for_each_entry(iter, &rtlpriv->scan_list.list, list) {
1997 		if (memcmp(iter->bssid, hdr->addr3, ETH_ALEN) == 0) {
1998 			list_del_init(&iter->list);
1999 			entry = iter;
2000 			rtl_dbg(rtlpriv, COMP_SCAN, DBG_LOUD,
2001 				"Update BSSID=%pM to scan list (total=%d)\n",
2002 				hdr->addr3, rtlpriv->scan_list.num);
2003 			break;
2004 		}
2005 	}
2006 
2007 	if (!entry) {
2008 		entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
2009 
2010 		if (!entry)
2011 			goto label_err;
2012 
2013 		memcpy(entry->bssid, hdr->addr3, ETH_ALEN);
2014 		rtlpriv->scan_list.num++;
2015 
2016 		rtl_dbg(rtlpriv, COMP_SCAN, DBG_LOUD,
2017 			"Add BSSID=%pM to scan list (total=%d)\n",
2018 			hdr->addr3, rtlpriv->scan_list.num);
2019 	}
2020 
2021 	entry->age = jiffies;
2022 
2023 	list_add_tail(&entry->list, &rtlpriv->scan_list.list);
2024 
2025 label_err:
2026 	spin_unlock_irqrestore(&rtlpriv->locks.scan_list_lock, flags);
2027 }
2028 EXPORT_SYMBOL(rtl_collect_scan_list);
2029 
rtl_watchdog_wq_callback(struct work_struct * work)2030 static void rtl_watchdog_wq_callback(struct work_struct *work)
2031 {
2032 	struct rtl_works *rtlworks = container_of(work, struct rtl_works,
2033 						  watchdog_wq.work);
2034 	struct ieee80211_hw *hw = rtlworks->hw;
2035 	struct rtl_priv *rtlpriv = rtl_priv(hw);
2036 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
2037 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
2038 	bool busytraffic = false;
2039 	bool tx_busy_traffic = false;
2040 	bool rx_busy_traffic = false;
2041 	bool higher_busytraffic = false;
2042 	bool higher_busyrxtraffic = false;
2043 	u8 idx, tid;
2044 	u32 rx_cnt_inp4eriod = 0;
2045 	u32 tx_cnt_inp4eriod = 0;
2046 	u32 aver_rx_cnt_inperiod = 0;
2047 	u32 aver_tx_cnt_inperiod = 0;
2048 	u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0};
2049 	u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0};
2050 
2051 	if (is_hal_stop(rtlhal))
2052 		return;
2053 
2054 	/* <1> Determine if action frame is allowed */
2055 	if (mac->link_state > MAC80211_NOLINK) {
2056 		if (mac->cnt_after_linked < 20)
2057 			mac->cnt_after_linked++;
2058 	} else {
2059 		mac->cnt_after_linked = 0;
2060 	}
2061 
2062 	/* <2> to check if traffic busy, if
2063 	 * busytraffic we don't change channel
2064 	 */
2065 	if (mac->link_state >= MAC80211_LINKED) {
2066 		/* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */
2067 		for (idx = 0; idx <= 2; idx++) {
2068 			rtlpriv->link_info.num_rx_in4period[idx] =
2069 			    rtlpriv->link_info.num_rx_in4period[idx + 1];
2070 			rtlpriv->link_info.num_tx_in4period[idx] =
2071 			    rtlpriv->link_info.num_tx_in4period[idx + 1];
2072 		}
2073 		rtlpriv->link_info.num_rx_in4period[3] =
2074 		    rtlpriv->link_info.num_rx_inperiod;
2075 		rtlpriv->link_info.num_tx_in4period[3] =
2076 		    rtlpriv->link_info.num_tx_inperiod;
2077 		for (idx = 0; idx <= 3; idx++) {
2078 			rx_cnt_inp4eriod +=
2079 			    rtlpriv->link_info.num_rx_in4period[idx];
2080 			tx_cnt_inp4eriod +=
2081 			    rtlpriv->link_info.num_tx_in4period[idx];
2082 		}
2083 		aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4;
2084 		aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4;
2085 
2086 		/* (2) check traffic busy */
2087 		if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) {
2088 			busytraffic = true;
2089 			if (aver_rx_cnt_inperiod > aver_tx_cnt_inperiod)
2090 				rx_busy_traffic = true;
2091 			else
2092 				tx_busy_traffic = false;
2093 		}
2094 
2095 		/* Higher Tx/Rx data. */
2096 		if (aver_rx_cnt_inperiod > 4000 ||
2097 		    aver_tx_cnt_inperiod > 4000) {
2098 			higher_busytraffic = true;
2099 
2100 			/* Extremely high Rx data. */
2101 			if (aver_rx_cnt_inperiod > 5000)
2102 				higher_busyrxtraffic = true;
2103 		}
2104 
2105 		/* check every tid's tx traffic */
2106 		for (tid = 0; tid <= 7; tid++) {
2107 			for (idx = 0; idx <= 2; idx++)
2108 				rtlpriv->link_info.tidtx_in4period[tid][idx] =
2109 					rtlpriv->link_info.tidtx_in4period[tid]
2110 					[idx + 1];
2111 			rtlpriv->link_info.tidtx_in4period[tid][3] =
2112 				rtlpriv->link_info.tidtx_inperiod[tid];
2113 
2114 			for (idx = 0; idx <= 3; idx++)
2115 				tidtx_inp4eriod[tid] +=
2116 				   rtlpriv->link_info.tidtx_in4period[tid][idx];
2117 			aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4;
2118 			if (aver_tidtx_inperiod[tid] > 5000)
2119 				rtlpriv->link_info.higher_busytxtraffic[tid] =
2120 									true;
2121 			else
2122 				rtlpriv->link_info.higher_busytxtraffic[tid] =
2123 									false;
2124 		}
2125 
2126 		/* PS is controlled by coex. */
2127 		if (rtlpriv->cfg->ops->get_btc_status() &&
2128 		    rtlpriv->btcoexist.btc_ops->btc_is_bt_ctrl_lps(rtlpriv))
2129 			goto label_lps_done;
2130 
2131 		if (rtlpriv->link_info.num_rx_inperiod +
2132 		      rtlpriv->link_info.num_tx_inperiod > 8 ||
2133 		    rtlpriv->link_info.num_rx_inperiod > 2)
2134 			rtl_lps_leave(hw, true);
2135 		else
2136 			rtl_lps_enter(hw, true);
2137 
2138 label_lps_done:
2139 		;
2140 	}
2141 
2142 	for (tid = 0; tid <= 7; tid++)
2143 		rtlpriv->link_info.tidtx_inperiod[tid] = 0;
2144 
2145 	rtlpriv->link_info.busytraffic = busytraffic;
2146 	rtlpriv->link_info.higher_busytraffic = higher_busytraffic;
2147 	rtlpriv->link_info.rx_busy_traffic = rx_busy_traffic;
2148 	rtlpriv->link_info.tx_busy_traffic = tx_busy_traffic;
2149 	rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic;
2150 
2151 	rtlpriv->stats.txbytesunicast_inperiod =
2152 		rtlpriv->stats.txbytesunicast -
2153 		rtlpriv->stats.txbytesunicast_last;
2154 	rtlpriv->stats.rxbytesunicast_inperiod =
2155 		rtlpriv->stats.rxbytesunicast -
2156 		rtlpriv->stats.rxbytesunicast_last;
2157 	rtlpriv->stats.txbytesunicast_last = rtlpriv->stats.txbytesunicast;
2158 	rtlpriv->stats.rxbytesunicast_last = rtlpriv->stats.rxbytesunicast;
2159 
2160 	rtlpriv->stats.txbytesunicast_inperiod_tp =
2161 		(u32)(rtlpriv->stats.txbytesunicast_inperiod * 8 / 2 /
2162 		1024 / 1024);
2163 	rtlpriv->stats.rxbytesunicast_inperiod_tp =
2164 		(u32)(rtlpriv->stats.rxbytesunicast_inperiod * 8 / 2 /
2165 		1024 / 1024);
2166 
2167 	/* <3> DM */
2168 	if (!rtlpriv->cfg->mod_params->disable_watchdog)
2169 		rtlpriv->cfg->ops->dm_watchdog(hw);
2170 
2171 	/* <4> roaming */
2172 	if (mac->link_state == MAC80211_LINKED &&
2173 	    mac->opmode == NL80211_IFTYPE_STATION) {
2174 		if ((rtlpriv->link_info.bcn_rx_inperiod +
2175 		    rtlpriv->link_info.num_rx_inperiod) == 0) {
2176 			rtlpriv->link_info.roam_times++;
2177 			rtl_dbg(rtlpriv, COMP_ERR, DBG_DMESG,
2178 				"AP off for %d s\n",
2179 				(rtlpriv->link_info.roam_times * 2));
2180 
2181 			/* if we can't recv beacon for 10s,
2182 			 * we should reconnect this AP
2183 			 */
2184 			if (rtlpriv->link_info.roam_times >= 5) {
2185 				pr_err("AP off, try to reconnect now\n");
2186 				rtlpriv->link_info.roam_times = 0;
2187 				ieee80211_connection_loss(
2188 					rtlpriv->mac80211.vif);
2189 			}
2190 		} else {
2191 			rtlpriv->link_info.roam_times = 0;
2192 		}
2193 	}
2194 
2195 	if (rtlpriv->cfg->ops->get_btc_status())
2196 		rtlpriv->btcoexist.btc_ops->btc_periodical(rtlpriv);
2197 
2198 	if (rtlpriv->btcoexist.btc_info.in_4way) {
2199 		if (time_after(jiffies, rtlpriv->btcoexist.btc_info.in_4way_ts +
2200 			       msecs_to_jiffies(IN_4WAY_TIMEOUT_TIME)))
2201 			rtlpriv->btcoexist.btc_info.in_4way = false;
2202 	}
2203 
2204 	rtlpriv->link_info.num_rx_inperiod = 0;
2205 	rtlpriv->link_info.num_tx_inperiod = 0;
2206 	rtlpriv->link_info.bcn_rx_inperiod = 0;
2207 
2208 	/* <6> scan list */
2209 	rtl_scan_list_expire(hw);
2210 
2211 	/* <7> check ack queue */
2212 	rtl_free_entries_from_ack_queue(hw, true);
2213 }
2214 
rtl_watch_dog_timer_callback(struct timer_list * t)2215 void rtl_watch_dog_timer_callback(struct timer_list *t)
2216 {
2217 	struct rtl_priv *rtlpriv = from_timer(rtlpriv, t, works.watchdog_timer);
2218 
2219 	queue_delayed_work(rtlpriv->works.rtl_wq,
2220 			   &rtlpriv->works.watchdog_wq, 0);
2221 
2222 	mod_timer(&rtlpriv->works.watchdog_timer,
2223 		  jiffies + MSECS(RTL_WATCH_DOG_TIME));
2224 }
2225 
rtl_fwevt_wq_callback(struct work_struct * work)2226 static void rtl_fwevt_wq_callback(struct work_struct *work)
2227 {
2228 	struct rtl_works *rtlworks = container_of(work, struct rtl_works,
2229 						  fwevt_wq.work);
2230 	struct ieee80211_hw *hw = rtlworks->hw;
2231 	struct rtl_priv *rtlpriv = rtl_priv(hw);
2232 
2233 	rtlpriv->cfg->ops->c2h_command_handle(hw);
2234 }
2235 
2236 static void rtl_c2h_content_parsing(struct ieee80211_hw *hw,
2237 				    struct sk_buff *skb);
2238 
rtl_c2h_fast_cmd(struct ieee80211_hw * hw,struct sk_buff * skb)2239 static bool rtl_c2h_fast_cmd(struct ieee80211_hw *hw, struct sk_buff *skb)
2240 {
2241 	u8 cmd_id = GET_C2H_CMD_ID(skb->data);
2242 
2243 	switch (cmd_id) {
2244 	case C2H_BT_MP:
2245 		return true;
2246 	default:
2247 		break;
2248 	}
2249 
2250 	return false;
2251 }
2252 
rtl_c2hcmd_enqueue(struct ieee80211_hw * hw,struct sk_buff * skb)2253 void rtl_c2hcmd_enqueue(struct ieee80211_hw *hw, struct sk_buff *skb)
2254 {
2255 	struct rtl_priv *rtlpriv = rtl_priv(hw);
2256 
2257 	if (rtl_c2h_fast_cmd(hw, skb)) {
2258 		rtl_c2h_content_parsing(hw, skb);
2259 		kfree_skb(skb);
2260 		return;
2261 	}
2262 
2263 	/* enqueue */
2264 	skb_queue_tail(&rtlpriv->c2hcmd_queue, skb);
2265 
2266 	/* wake up wq */
2267 	queue_delayed_work(rtlpriv->works.rtl_wq, &rtlpriv->works.c2hcmd_wq, 0);
2268 }
2269 EXPORT_SYMBOL(rtl_c2hcmd_enqueue);
2270 
rtl_c2h_content_parsing(struct ieee80211_hw * hw,struct sk_buff * skb)2271 static void rtl_c2h_content_parsing(struct ieee80211_hw *hw,
2272 				    struct sk_buff *skb)
2273 {
2274 	struct rtl_priv *rtlpriv = rtl_priv(hw);
2275 	const struct rtl_hal_ops *hal_ops = rtlpriv->cfg->ops;
2276 	const struct rtl_btc_ops *btc_ops = rtlpriv->btcoexist.btc_ops;
2277 	u8 cmd_id, cmd_len;
2278 	u8 *cmd_buf = NULL;
2279 
2280 	cmd_id = GET_C2H_CMD_ID(skb->data);
2281 	cmd_len = skb->len - C2H_DATA_OFFSET;
2282 	cmd_buf = GET_C2H_DATA_PTR(skb->data);
2283 
2284 	switch (cmd_id) {
2285 	case C2H_DBG:
2286 		rtl_dbg(rtlpriv, COMP_FW, DBG_LOUD, "[C2H], C2H_DBG!!\n");
2287 		break;
2288 	case C2H_TXBF:
2289 		rtl_dbg(rtlpriv, COMP_FW, DBG_TRACE,
2290 			"[C2H], C2H_TXBF!!\n");
2291 		break;
2292 	case C2H_TX_REPORT:
2293 		rtl_tx_report_handler(hw, cmd_buf, cmd_len);
2294 		break;
2295 	case C2H_RA_RPT:
2296 		if (hal_ops->c2h_ra_report_handler)
2297 			hal_ops->c2h_ra_report_handler(hw, cmd_buf, cmd_len);
2298 		break;
2299 	case C2H_BT_INFO:
2300 		rtl_dbg(rtlpriv, COMP_FW, DBG_TRACE,
2301 			"[C2H], C2H_BT_INFO!!\n");
2302 		if (rtlpriv->cfg->ops->get_btc_status())
2303 			btc_ops->btc_btinfo_notify(rtlpriv, cmd_buf, cmd_len);
2304 		break;
2305 	case C2H_BT_MP:
2306 		rtl_dbg(rtlpriv, COMP_FW, DBG_TRACE,
2307 			"[C2H], C2H_BT_MP!!\n");
2308 		if (rtlpriv->cfg->ops->get_btc_status())
2309 			btc_ops->btc_btmpinfo_notify(rtlpriv, cmd_buf, cmd_len);
2310 		break;
2311 	default:
2312 		rtl_dbg(rtlpriv, COMP_FW, DBG_TRACE,
2313 			"[C2H], Unknown packet!! cmd_id(%#X)!\n", cmd_id);
2314 		break;
2315 	}
2316 }
2317 
rtl_c2hcmd_launcher(struct ieee80211_hw * hw,int exec)2318 void rtl_c2hcmd_launcher(struct ieee80211_hw *hw, int exec)
2319 {
2320 	struct rtl_priv *rtlpriv = rtl_priv(hw);
2321 	struct sk_buff *skb;
2322 	int i;
2323 
2324 	for (i = 0; i < 200; i++) {
2325 		/* dequeue a task */
2326 		skb = skb_dequeue(&rtlpriv->c2hcmd_queue);
2327 
2328 		/* do it */
2329 		if (!skb)
2330 			break;
2331 
2332 		rtl_dbg(rtlpriv, COMP_FW, DBG_DMESG, "C2H rx_desc_shift=%d\n",
2333 			*((u8 *)skb->cb));
2334 		RT_PRINT_DATA(rtlpriv, COMP_FW, DBG_DMESG,
2335 			      "C2H data: ", skb->data, skb->len);
2336 
2337 		if (exec)
2338 			rtl_c2h_content_parsing(hw, skb);
2339 
2340 		/* free */
2341 		dev_kfree_skb_any(skb);
2342 	}
2343 }
2344 
rtl_c2hcmd_wq_callback(struct work_struct * work)2345 static void rtl_c2hcmd_wq_callback(struct work_struct *work)
2346 {
2347 	struct rtl_works *rtlworks = container_of(work, struct rtl_works,
2348 						  c2hcmd_wq.work);
2349 	struct ieee80211_hw *hw = rtlworks->hw;
2350 
2351 	rtl_c2hcmd_launcher(hw, 1);
2352 }
2353 
2354 /*********************************************************
2355  *
2356  * frame process functions
2357  *
2358  *********************************************************/
rtl_find_ie(u8 * data,unsigned int len,u8 ie)2359 u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie)
2360 {
2361 	struct ieee80211_mgmt *mgmt = (void *)data;
2362 	u8 *pos, *end;
2363 
2364 	pos = (u8 *)mgmt->u.beacon.variable;
2365 	end = data + len;
2366 	while (pos < end) {
2367 		if (pos + 2 + pos[1] > end)
2368 			return NULL;
2369 
2370 		if (pos[0] == ie)
2371 			return pos;
2372 
2373 		pos += 2 + pos[1];
2374 	}
2375 	return NULL;
2376 }
2377 
2378 /* when we use 2 rx ants we send IEEE80211_SMPS_OFF */
2379 /* 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)2380 static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw,
2381 				     enum ieee80211_smps_mode smps,
2382 				     u8 *da, u8 *bssid)
2383 {
2384 	struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
2385 	struct sk_buff *skb;
2386 	struct ieee80211_mgmt *action_frame;
2387 
2388 	/* 27 = header + category + action + smps mode */
2389 	skb = dev_alloc_skb(27 + hw->extra_tx_headroom);
2390 	if (!skb)
2391 		return NULL;
2392 
2393 	skb_reserve(skb, hw->extra_tx_headroom);
2394 	action_frame = skb_put_zero(skb, 27);
2395 	memcpy(action_frame->da, da, ETH_ALEN);
2396 	memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN);
2397 	memcpy(action_frame->bssid, bssid, ETH_ALEN);
2398 	action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2399 						  IEEE80211_STYPE_ACTION);
2400 	action_frame->u.action.category = WLAN_CATEGORY_HT;
2401 	action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS;
2402 	switch (smps) {
2403 	case IEEE80211_SMPS_AUTOMATIC:/* 0 */
2404 	case IEEE80211_SMPS_NUM_MODES:/* 4 */
2405 		WARN_ON(1);
2406 		fallthrough;
2407 	case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/
2408 		action_frame->u.action.u.ht_smps.smps_control =
2409 				WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */
2410 		break;
2411 	case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/
2412 		action_frame->u.action.u.ht_smps.smps_control =
2413 				WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */
2414 		break;
2415 	case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/
2416 		action_frame->u.action.u.ht_smps.smps_control =
2417 				WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */
2418 		break;
2419 	}
2420 
2421 	return skb;
2422 }
2423 
rtl_send_smps_action(struct ieee80211_hw * hw,struct ieee80211_sta * sta,enum ieee80211_smps_mode smps)2424 int rtl_send_smps_action(struct ieee80211_hw *hw,
2425 			 struct ieee80211_sta *sta,
2426 			 enum ieee80211_smps_mode smps)
2427 {
2428 	struct rtl_priv *rtlpriv = rtl_priv(hw);
2429 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
2430 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
2431 	struct sk_buff *skb = NULL;
2432 	struct rtl_tcb_desc tcb_desc;
2433 	u8 bssid[ETH_ALEN] = {0};
2434 
2435 	memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
2436 
2437 	if (rtlpriv->mac80211.act_scanning)
2438 		goto err_free;
2439 
2440 	if (!sta)
2441 		goto err_free;
2442 
2443 	if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
2444 		goto err_free;
2445 
2446 	if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
2447 		goto err_free;
2448 
2449 	if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP)
2450 		memcpy(bssid, rtlpriv->efuse.dev_addr, ETH_ALEN);
2451 	else
2452 		memcpy(bssid, rtlpriv->mac80211.bssid, ETH_ALEN);
2453 
2454 	skb = rtl_make_smps_action(hw, smps, sta->addr, bssid);
2455 	/* this is a type = mgmt * stype = action frame */
2456 	if (skb) {
2457 		struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
2458 		struct rtl_sta_info *sta_entry =
2459 			(struct rtl_sta_info *) sta->drv_priv;
2460 		sta_entry->mimo_ps = smps;
2461 		/* rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0, true); */
2462 
2463 		info->control.rates[0].idx = 0;
2464 		info->band = hw->conf.chandef.chan->band;
2465 		rtlpriv->intf_ops->adapter_tx(hw, sta, skb, &tcb_desc);
2466 	}
2467 	return 1;
2468 
2469 err_free:
2470 	return 0;
2471 }
2472 EXPORT_SYMBOL(rtl_send_smps_action);
2473 
rtl_phy_scan_operation_backup(struct ieee80211_hw * hw,u8 operation)2474 void rtl_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation)
2475 {
2476 	struct rtl_priv *rtlpriv = rtl_priv(hw);
2477 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
2478 	enum io_type iotype;
2479 
2480 	if (!is_hal_stop(rtlhal)) {
2481 		switch (operation) {
2482 		case SCAN_OPT_BACKUP:
2483 			iotype = IO_CMD_PAUSE_DM_BY_SCAN;
2484 			rtlpriv->cfg->ops->set_hw_reg(hw,
2485 						      HW_VAR_IO_CMD,
2486 						      (u8 *)&iotype);
2487 			break;
2488 		case SCAN_OPT_RESTORE:
2489 			iotype = IO_CMD_RESUME_DM_BY_SCAN;
2490 			rtlpriv->cfg->ops->set_hw_reg(hw,
2491 						      HW_VAR_IO_CMD,
2492 						      (u8 *)&iotype);
2493 			break;
2494 		default:
2495 			pr_err("Unknown Scan Backup operation.\n");
2496 			break;
2497 		}
2498 	}
2499 }
2500 EXPORT_SYMBOL(rtl_phy_scan_operation_backup);
2501 
2502 /* because mac80211 have issues when can receive del ba
2503  * so here we just make a fake del_ba if we receive a ba_req
2504  * but rx_agg was opened to let mac80211 release some ba
2505  * related resources, so please this del_ba for tx
2506  */
rtl_make_del_ba(struct ieee80211_hw * hw,u8 * sa,u8 * bssid,u16 tid)2507 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw,
2508 				u8 *sa, u8 *bssid, u16 tid)
2509 {
2510 	struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
2511 	struct sk_buff *skb;
2512 	struct ieee80211_mgmt *action_frame;
2513 	u16 params;
2514 
2515 	/* 27 = header + category + action + smps mode */
2516 	skb = dev_alloc_skb(34 + hw->extra_tx_headroom);
2517 	if (!skb)
2518 		return NULL;
2519 
2520 	skb_reserve(skb, hw->extra_tx_headroom);
2521 	action_frame = skb_put_zero(skb, 34);
2522 	memcpy(action_frame->sa, sa, ETH_ALEN);
2523 	memcpy(action_frame->da, rtlefuse->dev_addr, ETH_ALEN);
2524 	memcpy(action_frame->bssid, bssid, ETH_ALEN);
2525 	action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2526 						  IEEE80211_STYPE_ACTION);
2527 	action_frame->u.action.category = WLAN_CATEGORY_BACK;
2528 	action_frame->u.action.u.delba.action_code = WLAN_ACTION_DELBA;
2529 	params = (u16)(1 << 11);	/* bit 11 initiator */
2530 	params |= (u16)(tid << 12);	/* bit 15:12 TID number */
2531 
2532 	action_frame->u.action.u.delba.params = cpu_to_le16(params);
2533 	action_frame->u.action.u.delba.reason_code =
2534 		cpu_to_le16(WLAN_REASON_QSTA_TIMEOUT);
2535 
2536 	return skb;
2537 }
2538 
2539 /*********************************************************
2540  *
2541  * IOT functions
2542  *
2543  *********************************************************/
rtl_chk_vendor_ouisub(struct ieee80211_hw * hw,struct octet_string vendor_ie)2544 static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw,
2545 				  struct octet_string vendor_ie)
2546 {
2547 	struct rtl_priv *rtlpriv = rtl_priv(hw);
2548 	bool matched = false;
2549 	static u8 athcap_1[] = { 0x00, 0x03, 0x7F };
2550 	static u8 athcap_2[] = { 0x00, 0x13, 0x74 };
2551 	static u8 broadcap_1[] = { 0x00, 0x10, 0x18 };
2552 	static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 };
2553 	static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 };
2554 	static u8 racap[] = { 0x00, 0x0c, 0x43 };
2555 	static u8 ciscocap[] = { 0x00, 0x40, 0x96 };
2556 	static u8 marvcap[] = { 0x00, 0x50, 0x43 };
2557 
2558 	if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 ||
2559 		memcmp(vendor_ie.octet, athcap_2, 3) == 0) {
2560 		rtlpriv->mac80211.vendor = PEER_ATH;
2561 		matched = true;
2562 	} else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 ||
2563 		memcmp(vendor_ie.octet, broadcap_2, 3) == 0 ||
2564 		memcmp(vendor_ie.octet, broadcap_3, 3) == 0) {
2565 		rtlpriv->mac80211.vendor = PEER_BROAD;
2566 		matched = true;
2567 	} else if (memcmp(vendor_ie.octet, racap, 3) == 0) {
2568 		rtlpriv->mac80211.vendor = PEER_RAL;
2569 		matched = true;
2570 	} else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) {
2571 		rtlpriv->mac80211.vendor = PEER_CISCO;
2572 		matched = true;
2573 	} else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) {
2574 		rtlpriv->mac80211.vendor = PEER_MARV;
2575 		matched = true;
2576 	}
2577 
2578 	return matched;
2579 }
2580 
rtl_find_221_ie(struct ieee80211_hw * hw,u8 * data,unsigned int len)2581 static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data,
2582 		unsigned int len)
2583 {
2584 	struct ieee80211_mgmt *mgmt = (void *)data;
2585 	struct octet_string vendor_ie;
2586 	u8 *pos, *end;
2587 
2588 	pos = (u8 *)mgmt->u.beacon.variable;
2589 	end = data + len;
2590 	while (pos < end) {
2591 		if (pos[0] == 221) {
2592 			vendor_ie.length = pos[1];
2593 			vendor_ie.octet = &pos[2];
2594 			if (rtl_chk_vendor_ouisub(hw, vendor_ie))
2595 				return true;
2596 		}
2597 
2598 		if (pos + 2 + pos[1] > end)
2599 			return false;
2600 
2601 		pos += 2 + pos[1];
2602 	}
2603 	return false;
2604 }
2605 
rtl_recognize_peer(struct ieee80211_hw * hw,u8 * data,unsigned int len)2606 void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len)
2607 {
2608 	struct rtl_priv *rtlpriv = rtl_priv(hw);
2609 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
2610 	struct ieee80211_hdr *hdr = (void *)data;
2611 	u32 vendor = PEER_UNKNOWN;
2612 
2613 	static u8 ap3_1[3] = { 0x00, 0x14, 0xbf };
2614 	static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 };
2615 	static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e };
2616 	static u8 ap4_1[3] = { 0x00, 0x90, 0xcc };
2617 	static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e };
2618 	static u8 ap4_3[3] = { 0x00, 0x18, 0x02 };
2619 	static u8 ap4_4[3] = { 0x00, 0x17, 0x3f };
2620 	static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf };
2621 	static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 };
2622 	static u8 ap5_2[3] = { 0x00, 0x21, 0x91 };
2623 	static u8 ap5_3[3] = { 0x00, 0x24, 0x01 };
2624 	static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 };
2625 	static u8 ap5_5[3] = { 0x00, 0x17, 0x9A };
2626 	static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 };
2627 	static u8 ap6_1[3] = { 0x00, 0x17, 0x94 };
2628 	static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 };
2629 
2630 	if (mac->opmode != NL80211_IFTYPE_STATION)
2631 		return;
2632 
2633 	if (mac->link_state == MAC80211_NOLINK) {
2634 		mac->vendor = PEER_UNKNOWN;
2635 		return;
2636 	}
2637 
2638 	if (mac->cnt_after_linked > 2)
2639 		return;
2640 
2641 	/* check if this really is a beacon */
2642 	if (!ieee80211_is_beacon(hdr->frame_control))
2643 		return;
2644 
2645 	/* min. beacon length + FCS_LEN */
2646 	if (len <= 40 + FCS_LEN)
2647 		return;
2648 
2649 	/* and only beacons from the associated BSSID, please */
2650 	if (!ether_addr_equal_64bits(hdr->addr3, rtlpriv->mac80211.bssid))
2651 		return;
2652 
2653 	if (rtl_find_221_ie(hw, data, len))
2654 		vendor = mac->vendor;
2655 
2656 	if ((memcmp(mac->bssid, ap5_1, 3) == 0) ||
2657 		(memcmp(mac->bssid, ap5_2, 3) == 0) ||
2658 		(memcmp(mac->bssid, ap5_3, 3) == 0) ||
2659 		(memcmp(mac->bssid, ap5_4, 3) == 0) ||
2660 		(memcmp(mac->bssid, ap5_5, 3) == 0) ||
2661 		(memcmp(mac->bssid, ap5_6, 3) == 0) ||
2662 		vendor == PEER_ATH) {
2663 		vendor = PEER_ATH;
2664 		rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ath find\n");
2665 	} else if ((memcmp(mac->bssid, ap4_4, 3) == 0) ||
2666 		(memcmp(mac->bssid, ap4_5, 3) == 0) ||
2667 		(memcmp(mac->bssid, ap4_1, 3) == 0) ||
2668 		(memcmp(mac->bssid, ap4_2, 3) == 0) ||
2669 		(memcmp(mac->bssid, ap4_3, 3) == 0) ||
2670 		vendor == PEER_RAL) {
2671 		rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ral find\n");
2672 		vendor = PEER_RAL;
2673 	} else if (memcmp(mac->bssid, ap6_1, 3) == 0 ||
2674 		vendor == PEER_CISCO) {
2675 		vendor = PEER_CISCO;
2676 		rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>cisco find\n");
2677 	} else if ((memcmp(mac->bssid, ap3_1, 3) == 0) ||
2678 		(memcmp(mac->bssid, ap3_2, 3) == 0) ||
2679 		(memcmp(mac->bssid, ap3_3, 3) == 0) ||
2680 		vendor == PEER_BROAD) {
2681 		rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>broad find\n");
2682 		vendor = PEER_BROAD;
2683 	} else if (memcmp(mac->bssid, ap7_1, 3) == 0 ||
2684 		vendor == PEER_MARV) {
2685 		vendor = PEER_MARV;
2686 		rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>marv find\n");
2687 	}
2688 
2689 	mac->vendor = vendor;
2690 }
2691 EXPORT_SYMBOL_GPL(rtl_recognize_peer);
2692 
2693 MODULE_AUTHOR("lizhaoming	<chaoming_li@realsil.com.cn>");
2694 MODULE_AUTHOR("Realtek WlanFAE	<wlanfae@realtek.com>");
2695 MODULE_AUTHOR("Larry Finger	<Larry.FInger@lwfinger.net>");
2696 MODULE_LICENSE("GPL");
2697 MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");
2698 
2699 struct rtl_global_var rtl_global_var = {};
2700 EXPORT_SYMBOL_GPL(rtl_global_var);
2701 
rtl_core_module_init(void)2702 static int __init rtl_core_module_init(void)
2703 {
2704 	BUILD_BUG_ON(TX_PWR_BY_RATE_NUM_RATE < TX_PWR_BY_RATE_NUM_SECTION);
2705 	BUILD_BUG_ON(MAX_RATE_SECTION_NUM != MAX_RATE_SECTION);
2706 	BUILD_BUG_ON(MAX_BASE_NUM_IN_PHY_REG_PG_24G != MAX_RATE_SECTION);
2707 	BUILD_BUG_ON(MAX_BASE_NUM_IN_PHY_REG_PG_5G != (MAX_RATE_SECTION - 1));
2708 
2709 	if (rtl_rate_control_register())
2710 		pr_err("rtl: Unable to register rtl_rc, use default RC !!\n");
2711 
2712 	/* add debugfs */
2713 	rtl_debugfs_add_topdir();
2714 
2715 	/* init some global vars */
2716 	INIT_LIST_HEAD(&rtl_global_var.glb_priv_list);
2717 	spin_lock_init(&rtl_global_var.glb_list_lock);
2718 
2719 	return 0;
2720 }
2721 
rtl_core_module_exit(void)2722 static void __exit rtl_core_module_exit(void)
2723 {
2724 	/*RC*/
2725 	rtl_rate_control_unregister();
2726 
2727 	/* remove debugfs */
2728 	rtl_debugfs_remove_topdir();
2729 }
2730 
2731 module_init(rtl_core_module_init);
2732 module_exit(rtl_core_module_exit);
2733