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xtensa: support DMA buffers in high memory
[cris-mirror.git] / drivers / net / wireless / realtek / rtlwifi / base.c
blobd6c03bd5cc65e2aa96ef6b2fd25b5d97b20a9652
1 /******************************************************************************
2 *
3 * Copyright(c) 2009-2012 Realtek Corporation.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * The full GNU General Public License is included in this distribution in the
15 * file called LICENSE.
16 *
17 * Contact Information:
18 * wlanfae <wlanfae@realtek.com>
19 * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
20 * Hsinchu 300, Taiwan.
21 *
22 * Larry Finger <Larry.Finger@lwfinger.net>
23 *
24 *****************************************************************************/
25
26 #include "wifi.h"
27 #include "rc.h"
28 #include "base.h"
29 #include "efuse.h"
30 #include "cam.h"
31 #include "ps.h"
32 #include "regd.h"
33 #include "pci.h"
34 #include <linux/ip.h>
35 #include <linux/module.h>
36 #include <linux/udp.h>
37
38 /*
39 *NOTICE!!!: This file will be very big, we should
40 *keep it clear under following roles:
41 *
42 *This file include following parts, so, if you add new
43 *functions into this file, please check which part it
44 *should includes. or check if you should add new part
45 *for this file:
46 *
47 *1) mac80211 init functions
48 *2) tx information functions
49 *3) functions called by core.c
50 *4) wq & timer callback functions
51 *5) frame process functions
52 *6) IOT functions
53 *7) sysfs functions
54 *8) vif functions
55 *9) ...
56 */
57
58 /*********************************************************
59 *
60 * mac80211 init functions
61 *
62 *********************************************************/
63 static struct ieee80211_channel rtl_channeltable_2g[] = {
64 {.center_freq = 2412, .hw_value = 1,},
65 {.center_freq = 2417, .hw_value = 2,},
66 {.center_freq = 2422, .hw_value = 3,},
67 {.center_freq = 2427, .hw_value = 4,},
68 {.center_freq = 2432, .hw_value = 5,},
69 {.center_freq = 2437, .hw_value = 6,},
70 {.center_freq = 2442, .hw_value = 7,},
71 {.center_freq = 2447, .hw_value = 8,},
72 {.center_freq = 2452, .hw_value = 9,},
73 {.center_freq = 2457, .hw_value = 10,},
74 {.center_freq = 2462, .hw_value = 11,},
75 {.center_freq = 2467, .hw_value = 12,},
76 {.center_freq = 2472, .hw_value = 13,},
77 {.center_freq = 2484, .hw_value = 14,},
78 };
79
80 static struct ieee80211_channel rtl_channeltable_5g[] = {
81 {.center_freq = 5180, .hw_value = 36,},
82 {.center_freq = 5200, .hw_value = 40,},
83 {.center_freq = 5220, .hw_value = 44,},
84 {.center_freq = 5240, .hw_value = 48,},
85 {.center_freq = 5260, .hw_value = 52,},
86 {.center_freq = 5280, .hw_value = 56,},
87 {.center_freq = 5300, .hw_value = 60,},
88 {.center_freq = 5320, .hw_value = 64,},
89 {.center_freq = 5500, .hw_value = 100,},
90 {.center_freq = 5520, .hw_value = 104,},
91 {.center_freq = 5540, .hw_value = 108,},
92 {.center_freq = 5560, .hw_value = 112,},
93 {.center_freq = 5580, .hw_value = 116,},
94 {.center_freq = 5600, .hw_value = 120,},
95 {.center_freq = 5620, .hw_value = 124,},
96 {.center_freq = 5640, .hw_value = 128,},
97 {.center_freq = 5660, .hw_value = 132,},
98 {.center_freq = 5680, .hw_value = 136,},
99 {.center_freq = 5700, .hw_value = 140,},
100 {.center_freq = 5745, .hw_value = 149,},
101 {.center_freq = 5765, .hw_value = 153,},
102 {.center_freq = 5785, .hw_value = 157,},
103 {.center_freq = 5805, .hw_value = 161,},
104 {.center_freq = 5825, .hw_value = 165,},
105 };
106
107 static struct ieee80211_rate rtl_ratetable_2g[] = {
108 {.bitrate = 10, .hw_value = 0x00,},
109 {.bitrate = 20, .hw_value = 0x01,},
110 {.bitrate = 55, .hw_value = 0x02,},
111 {.bitrate = 110, .hw_value = 0x03,},
112 {.bitrate = 60, .hw_value = 0x04,},
113 {.bitrate = 90, .hw_value = 0x05,},
114 {.bitrate = 120, .hw_value = 0x06,},
115 {.bitrate = 180, .hw_value = 0x07,},
116 {.bitrate = 240, .hw_value = 0x08,},
117 {.bitrate = 360, .hw_value = 0x09,},
118 {.bitrate = 480, .hw_value = 0x0a,},
119 {.bitrate = 540, .hw_value = 0x0b,},
120 };
121
122 static struct ieee80211_rate rtl_ratetable_5g[] = {
123 {.bitrate = 60, .hw_value = 0x04,},
124 {.bitrate = 90, .hw_value = 0x05,},
125 {.bitrate = 120, .hw_value = 0x06,},
126 {.bitrate = 180, .hw_value = 0x07,},
127 {.bitrate = 240, .hw_value = 0x08,},
128 {.bitrate = 360, .hw_value = 0x09,},
129 {.bitrate = 480, .hw_value = 0x0a,},
130 {.bitrate = 540, .hw_value = 0x0b,},
131 };
132
133 static const struct ieee80211_supported_band rtl_band_2ghz = {
134 .band = NL80211_BAND_2GHZ,
135
136 .channels = rtl_channeltable_2g,
137 .n_channels = ARRAY_SIZE(rtl_channeltable_2g),
138
139 .bitrates = rtl_ratetable_2g,
140 .n_bitrates = ARRAY_SIZE(rtl_ratetable_2g),
141
142 .ht_cap = {0},
143 };
144
145 static struct ieee80211_supported_band rtl_band_5ghz = {
146 .band = NL80211_BAND_5GHZ,
147
148 .channels = rtl_channeltable_5g,
149 .n_channels = ARRAY_SIZE(rtl_channeltable_5g),
150
151 .bitrates = rtl_ratetable_5g,
152 .n_bitrates = ARRAY_SIZE(rtl_ratetable_5g),
153
154 .ht_cap = {0},
155 };
156
157 static const u8 tid_to_ac[] = {
158 2, /* IEEE80211_AC_BE */
159 3, /* IEEE80211_AC_BK */
160 3, /* IEEE80211_AC_BK */
161 2, /* IEEE80211_AC_BE */
162 1, /* IEEE80211_AC_VI */
163 1, /* IEEE80211_AC_VI */
164 0, /* IEEE80211_AC_VO */
165 0, /* IEEE80211_AC_VO */
166 };
167
168 u8 rtl_tid_to_ac(u8 tid)
169 {
170 return tid_to_ac[tid];
171 }
172 EXPORT_SYMBOL_GPL(rtl_tid_to_ac);
173
174 static void _rtl_init_hw_ht_capab(struct ieee80211_hw *hw,
175 struct ieee80211_sta_ht_cap *ht_cap)
176 {
177 struct rtl_priv *rtlpriv = rtl_priv(hw);
178 struct rtl_phy *rtlphy = &(rtlpriv->phy);
179
180 ht_cap->ht_supported = true;
181 ht_cap->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
182 IEEE80211_HT_CAP_SGI_40 |
183 IEEE80211_HT_CAP_SGI_20 |
184 IEEE80211_HT_CAP_DSSSCCK40 | IEEE80211_HT_CAP_MAX_AMSDU;
185
186 if (rtlpriv->rtlhal.disable_amsdu_8k)
187 ht_cap->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
188
189 /*
190 *Maximum length of AMPDU that the STA can receive.
191 *Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
192 */
193 ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
194
195 /*Minimum MPDU start spacing , */
196 ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
197
198 ht_cap->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
199
200 /*hw->wiphy->bands[NL80211_BAND_2GHZ]
201 *base on ant_num
202 *rx_mask: RX mask
203 *if rx_ant = 1 rx_mask[0]= 0xff;==>MCS0-MCS7
204 *if rx_ant = 2 rx_mask[1]= 0xff;==>MCS8-MCS15
205 *if rx_ant >= 3 rx_mask[2]= 0xff;
206 *if BW_40 rx_mask[4]= 0x01;
207 *highest supported RX rate
208 */
209 if (rtlpriv->dm.supp_phymode_switch) {
210 pr_info("Support phy mode switch\n");
211
212 ht_cap->mcs.rx_mask[0] = 0xFF;
213 ht_cap->mcs.rx_mask[1] = 0xFF;
214 ht_cap->mcs.rx_mask[4] = 0x01;
215
216 ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
217 } else {
218 if (get_rf_type(rtlphy) == RF_1T2R ||
219 get_rf_type(rtlphy) == RF_2T2R) {
220 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
221 "1T2R or 2T2R\n");
222 ht_cap->mcs.rx_mask[0] = 0xFF;
223 ht_cap->mcs.rx_mask[1] = 0xFF;
224 ht_cap->mcs.rx_mask[4] = 0x01;
225
226 ht_cap->mcs.rx_highest =
227 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
228 } else if (get_rf_type(rtlphy) == RF_1T1R) {
229 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "1T1R\n");
230
231 ht_cap->mcs.rx_mask[0] = 0xFF;
232 ht_cap->mcs.rx_mask[1] = 0x00;
233 ht_cap->mcs.rx_mask[4] = 0x01;
234
235 ht_cap->mcs.rx_highest =
236 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS7);
237 }
238 }
239 }
240
241 static void _rtl_init_hw_vht_capab(struct ieee80211_hw *hw,
242 struct ieee80211_sta_vht_cap *vht_cap)
243 {
244 struct rtl_priv *rtlpriv = rtl_priv(hw);
245 struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
246
247 if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE ||
248 rtlhal->hw_type == HARDWARE_TYPE_RTL8822BE) {
249 u16 mcs_map;
250
251 vht_cap->vht_supported = true;
252 vht_cap->cap =
253 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
254 IEEE80211_VHT_CAP_SHORT_GI_80 |
255 IEEE80211_VHT_CAP_TXSTBC |
256 IEEE80211_VHT_CAP_RXSTBC_1 |
257 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
258 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
259 IEEE80211_VHT_CAP_HTC_VHT |
260 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
261 IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
262 IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN |
263 0;
264
265 mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
266 IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
267 IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
268 IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
269 IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
270 IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
271 IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
272 IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;
273
274 vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
275 vht_cap->vht_mcs.rx_highest =
276 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9);
277 vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
278 vht_cap->vht_mcs.tx_highest =
279 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9);
280 } else if (rtlhal->hw_type == HARDWARE_TYPE_RTL8821AE) {
281 u16 mcs_map;
282
283 vht_cap->vht_supported = true;
284 vht_cap->cap =
285 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
286 IEEE80211_VHT_CAP_SHORT_GI_80 |
287 IEEE80211_VHT_CAP_TXSTBC |
288 IEEE80211_VHT_CAP_RXSTBC_1 |
289 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
290 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
291 IEEE80211_VHT_CAP_HTC_VHT |
292 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
293 IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
294 IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN |
295 0;
296
297 mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
298 IEEE80211_VHT_MCS_NOT_SUPPORTED << 2 |
299 IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
300 IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
301 IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
302 IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
303 IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
304 IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;
305
306 vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
307 vht_cap->vht_mcs.rx_highest =
308 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9);
309 vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
310 vht_cap->vht_mcs.tx_highest =
311 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9);
312 }
313 }
314
315 static void _rtl_init_mac80211(struct ieee80211_hw *hw)
316 {
317 struct rtl_priv *rtlpriv = rtl_priv(hw);
318 struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
319 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
320 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
321 struct ieee80211_supported_band *sband;
322
323 if (rtlhal->macphymode == SINGLEMAC_SINGLEPHY &&
324 rtlhal->bandset == BAND_ON_BOTH) {
325 /* 1: 2.4 G bands */
326 /* <1> use mac->bands as mem for hw->wiphy->bands */
327 sband = &(rtlmac->bands[NL80211_BAND_2GHZ]);
328
329 /* <2> set hw->wiphy->bands[NL80211_BAND_2GHZ]
330 * to default value(1T1R) */
331 memcpy(&(rtlmac->bands[NL80211_BAND_2GHZ]), &rtl_band_2ghz,
332 sizeof(struct ieee80211_supported_band));
333
334 /* <3> init ht cap base on ant_num */
335 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
336
337 /* <4> set mac->sband to wiphy->sband */
338 hw->wiphy->bands[NL80211_BAND_2GHZ] = sband;
339
340 /* 2: 5 G bands */
341 /* <1> use mac->bands as mem for hw->wiphy->bands */
342 sband = &(rtlmac->bands[NL80211_BAND_5GHZ]);
343
344 /* <2> set hw->wiphy->bands[NL80211_BAND_5GHZ]
345 * to default value(1T1R) */
346 memcpy(&(rtlmac->bands[NL80211_BAND_5GHZ]), &rtl_band_5ghz,
347 sizeof(struct ieee80211_supported_band));
348
349 /* <3> init ht cap base on ant_num */
350 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
351
352 _rtl_init_hw_vht_capab(hw, &sband->vht_cap);
353 /* <4> set mac->sband to wiphy->sband */
354 hw->wiphy->bands[NL80211_BAND_5GHZ] = sband;
355 } else {
356 if (rtlhal->current_bandtype == BAND_ON_2_4G) {
357 /* <1> use mac->bands as mem for hw->wiphy->bands */
358 sband = &(rtlmac->bands[NL80211_BAND_2GHZ]);
359
360 /* <2> set hw->wiphy->bands[NL80211_BAND_2GHZ]
361 * to default value(1T1R) */
362 memcpy(&(rtlmac->bands[NL80211_BAND_2GHZ]),
363 &rtl_band_2ghz,
364 sizeof(struct ieee80211_supported_band));
365
366 /* <3> init ht cap base on ant_num */
367 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
368
369 /* <4> set mac->sband to wiphy->sband */
370 hw->wiphy->bands[NL80211_BAND_2GHZ] = sband;
371 } else if (rtlhal->current_bandtype == BAND_ON_5G) {
372 /* <1> use mac->bands as mem for hw->wiphy->bands */
373 sband = &(rtlmac->bands[NL80211_BAND_5GHZ]);
374
375 /* <2> set hw->wiphy->bands[NL80211_BAND_5GHZ]
376 * to default value(1T1R) */
377 memcpy(&(rtlmac->bands[NL80211_BAND_5GHZ]),
378 &rtl_band_5ghz,
379 sizeof(struct ieee80211_supported_band));
380
381 /* <3> init ht cap base on ant_num */
382 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
383
384 _rtl_init_hw_vht_capab(hw, &sband->vht_cap);
385 /* <4> set mac->sband to wiphy->sband */
386 hw->wiphy->bands[NL80211_BAND_5GHZ] = sband;
387 } else {
388 pr_err("Err BAND %d\n",
389 rtlhal->current_bandtype);
390 }
391 }
392 /* <5> set hw caps */
393 ieee80211_hw_set(hw, SIGNAL_DBM);
394 ieee80211_hw_set(hw, RX_INCLUDES_FCS);
395 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
396 ieee80211_hw_set(hw, CONNECTION_MONITOR);
397 ieee80211_hw_set(hw, MFP_CAPABLE);
398 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
399 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
400
401 /* swlps or hwlps has been set in diff chip in init_sw_vars */
402 if (rtlpriv->psc.swctrl_lps) {
403 ieee80211_hw_set(hw, SUPPORTS_PS);
404 ieee80211_hw_set(hw, PS_NULLFUNC_STACK);
405 }
406 if (rtlpriv->psc.fwctrl_lps) {
407 ieee80211_hw_set(hw, SUPPORTS_PS);
408 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
409 }
410 hw->wiphy->interface_modes =
411 BIT(NL80211_IFTYPE_AP) |
412 BIT(NL80211_IFTYPE_STATION) |
413 BIT(NL80211_IFTYPE_ADHOC) |
414 BIT(NL80211_IFTYPE_MESH_POINT) |
415 BIT(NL80211_IFTYPE_P2P_CLIENT) |
416 BIT(NL80211_IFTYPE_P2P_GO);
417 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
418
419 hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
420
421 hw->wiphy->rts_threshold = 2347;
422
423 hw->queues = AC_MAX;
424 hw->extra_tx_headroom = RTL_TX_HEADER_SIZE;
425
426 /* TODO: Correct this value for our hw */
427 hw->max_listen_interval = MAX_LISTEN_INTERVAL;
428 hw->max_rate_tries = MAX_RATE_TRIES;
429 /* hw->max_rates = 1; */
430 hw->sta_data_size = sizeof(struct rtl_sta_info);
431
432 /* wowlan is not supported by kernel if CONFIG_PM is not defined */
433 #ifdef CONFIG_PM
434 if (rtlpriv->psc.wo_wlan_mode) {
435 if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_MAGIC_PACKET)
436 rtlpriv->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT;
437 if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_PATTERN_MATCH) {
438 rtlpriv->wowlan.n_patterns =
439 MAX_SUPPORT_WOL_PATTERN_NUM;
440 rtlpriv->wowlan.pattern_min_len = MIN_WOL_PATTERN_SIZE;
441 rtlpriv->wowlan.pattern_max_len = MAX_WOL_PATTERN_SIZE;
442 }
443 hw->wiphy->wowlan = &rtlpriv->wowlan;
444 }
445 #endif
446
447 /* <6> mac address */
448 if (is_valid_ether_addr(rtlefuse->dev_addr)) {
449 SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr);
450 } else {
451 u8 rtlmac1[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 };
452 get_random_bytes((rtlmac1 + (ETH_ALEN - 1)), 1);
453 SET_IEEE80211_PERM_ADDR(hw, rtlmac1);
454 }
455 }
456
457 static void _rtl_init_deferred_work(struct ieee80211_hw *hw)
458 {
459 struct rtl_priv *rtlpriv = rtl_priv(hw);
460
461 /* <1> timer */
462 timer_setup(&rtlpriv->works.watchdog_timer,
463 rtl_watch_dog_timer_callback, 0);
464 timer_setup(&rtlpriv->works.dualmac_easyconcurrent_retrytimer,
465 rtl_easy_concurrent_retrytimer_callback, 0);
466 /* <2> work queue */
467 rtlpriv->works.hw = hw;
468 rtlpriv->works.rtl_wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name);
469 INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
470 (void *)rtl_watchdog_wq_callback);
471 INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,
472 (void *)rtl_ips_nic_off_wq_callback);
473 INIT_DELAYED_WORK(&rtlpriv->works.ps_work,
474 (void *)rtl_swlps_wq_callback);
475 INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq,
476 (void *)rtl_swlps_rfon_wq_callback);
477 INIT_DELAYED_WORK(&rtlpriv->works.fwevt_wq,
478 (void *)rtl_fwevt_wq_callback);
479 INIT_DELAYED_WORK(&rtlpriv->works.c2hcmd_wq,
480 (void *)rtl_c2hcmd_wq_callback);
481
482 }
483
484 void rtl_deinit_deferred_work(struct ieee80211_hw *hw)
485 {
486 struct rtl_priv *rtlpriv = rtl_priv(hw);
487
488 del_timer_sync(&rtlpriv->works.watchdog_timer);
489
490 cancel_delayed_work(&rtlpriv->works.watchdog_wq);
491 cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq);
492 cancel_delayed_work(&rtlpriv->works.ps_work);
493 cancel_delayed_work(&rtlpriv->works.ps_rfon_wq);
494 cancel_delayed_work(&rtlpriv->works.fwevt_wq);
495 cancel_delayed_work(&rtlpriv->works.c2hcmd_wq);
496 }
497 EXPORT_SYMBOL_GPL(rtl_deinit_deferred_work);
498
499 void rtl_init_rfkill(struct ieee80211_hw *hw)
500 {
501 struct rtl_priv *rtlpriv = rtl_priv(hw);
502
503 bool radio_state;
504 bool blocked;
505 u8 valid = 0;
506
507 /*set init state to on */
508 rtlpriv->rfkill.rfkill_state = true;
509 wiphy_rfkill_set_hw_state(hw->wiphy, 0);
510
511 radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
512
513 if (valid) {
514 pr_info("rtlwifi: wireless switch is %s\n",
515 rtlpriv->rfkill.rfkill_state ? "on" : "off");
516
517 rtlpriv->rfkill.rfkill_state = radio_state;
518
519 blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1;
520 wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
521 }
522
523 wiphy_rfkill_start_polling(hw->wiphy);
524 }
525 EXPORT_SYMBOL(rtl_init_rfkill);
526
527 void rtl_deinit_rfkill(struct ieee80211_hw *hw)
528 {
529 wiphy_rfkill_stop_polling(hw->wiphy);
530 }
531 EXPORT_SYMBOL_GPL(rtl_deinit_rfkill);
532
533 int rtl_init_core(struct ieee80211_hw *hw)
534 {
535 struct rtl_priv *rtlpriv = rtl_priv(hw);
536 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
537
538 /* <1> init mac80211 */
539 _rtl_init_mac80211(hw);
540 rtlmac->hw = hw;
541
542 /* <2> rate control register */
543 hw->rate_control_algorithm = "rtl_rc";
544
545 /*
546 * <3> init CRDA must come after init
547 * mac80211 hw in _rtl_init_mac80211.
548 */
549 if (rtl_regd_init(hw, rtl_reg_notifier)) {
550 pr_err("REGD init failed\n");
551 return 1;
552 }
553
554 /* <4> locks */
555 mutex_init(&rtlpriv->locks.conf_mutex);
556 mutex_init(&rtlpriv->locks.ips_mutex);
557 mutex_init(&rtlpriv->locks.lps_mutex);
558 spin_lock_init(&rtlpriv->locks.irq_th_lock);
559 spin_lock_init(&rtlpriv->locks.h2c_lock);
560 spin_lock_init(&rtlpriv->locks.rf_ps_lock);
561 spin_lock_init(&rtlpriv->locks.rf_lock);
562 spin_lock_init(&rtlpriv->locks.waitq_lock);
563 spin_lock_init(&rtlpriv->locks.entry_list_lock);
564 spin_lock_init(&rtlpriv->locks.c2hcmd_lock);
565 spin_lock_init(&rtlpriv->locks.scan_list_lock);
566 spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock);
567 spin_lock_init(&rtlpriv->locks.fw_ps_lock);
568 spin_lock_init(&rtlpriv->locks.iqk_lock);
569 /* <5> init list */
570 INIT_LIST_HEAD(&rtlpriv->entry_list);
571 INIT_LIST_HEAD(&rtlpriv->c2hcmd_list);
572 INIT_LIST_HEAD(&rtlpriv->scan_list.list);
573
574 rtlmac->link_state = MAC80211_NOLINK;
575
576 /* <6> init deferred work */
577 _rtl_init_deferred_work(hw);
578
579 return 0;
580 }
581 EXPORT_SYMBOL_GPL(rtl_init_core);
582
583 static void rtl_free_entries_from_scan_list(struct ieee80211_hw *hw);
584
585 void rtl_deinit_core(struct ieee80211_hw *hw)
586 {
587 rtl_c2hcmd_launcher(hw, 0);
588 rtl_free_entries_from_scan_list(hw);
589 }
590 EXPORT_SYMBOL_GPL(rtl_deinit_core);
591
592 void rtl_init_rx_config(struct ieee80211_hw *hw)
593 {
594 struct rtl_priv *rtlpriv = rtl_priv(hw);
595 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
596
597 rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf));
598 }
599 EXPORT_SYMBOL_GPL(rtl_init_rx_config);
600
601 /*********************************************************
602 *
603 * tx information functions
604 *
605 *********************************************************/
606 static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw,
607 struct rtl_tcb_desc *tcb_desc,
608 struct ieee80211_tx_info *info)
609 {
610 struct rtl_priv *rtlpriv = rtl_priv(hw);
611 u8 rate_flag = info->control.rates[0].flags;
612
613 tcb_desc->use_shortpreamble = false;
614
615 /* 1M can only use Long Preamble. 11B spec */
616 if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M])
617 return;
618 else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
619 tcb_desc->use_shortpreamble = true;
620
621 return;
622 }
623
624 static void _rtl_query_shortgi(struct ieee80211_hw *hw,
625 struct ieee80211_sta *sta,
626 struct rtl_tcb_desc *tcb_desc,
627 struct ieee80211_tx_info *info)
628 {
629 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
630 u8 rate_flag = info->control.rates[0].flags;
631 u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0;
632 u8 sgi_80 = 0, bw_80 = 0;
633 tcb_desc->use_shortgi = false;
634
635 if (sta == NULL)
636 return;
637
638 sgi_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40;
639 sgi_20 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20;
640 sgi_80 = sta->vht_cap.cap & IEEE80211_VHT_CAP_SHORT_GI_80;
641
642 if ((!sta->ht_cap.ht_supported) && (!sta->vht_cap.vht_supported))
643 return;
644
645 if (!sgi_40 && !sgi_20)
646 return;
647
648 if (mac->opmode == NL80211_IFTYPE_STATION) {
649 bw_40 = mac->bw_40;
650 bw_80 = mac->bw_80;
651 } else if (mac->opmode == NL80211_IFTYPE_AP ||
652 mac->opmode == NL80211_IFTYPE_ADHOC ||
653 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
654 bw_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40;
655 bw_80 = sta->vht_cap.vht_supported;
656 }
657
658 if (bw_80) {
659 if (sgi_80)
660 tcb_desc->use_shortgi = true;
661 else
662 tcb_desc->use_shortgi = false;
663 } else {
664 if (bw_40 && sgi_40)
665 tcb_desc->use_shortgi = true;
666 else if (!bw_40 && sgi_20)
667 tcb_desc->use_shortgi = true;
668 }
669
670 if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI))
671 tcb_desc->use_shortgi = false;
672 }
673
674 static void _rtl_query_protection_mode(struct ieee80211_hw *hw,
675 struct rtl_tcb_desc *tcb_desc,
676 struct ieee80211_tx_info *info)
677 {
678 struct rtl_priv *rtlpriv = rtl_priv(hw);
679 u8 rate_flag = info->control.rates[0].flags;
680
681 /* Common Settings */
682 tcb_desc->rts_stbc = false;
683 tcb_desc->cts_enable = false;
684 tcb_desc->rts_sc = 0;
685 tcb_desc->rts_bw = false;
686 tcb_desc->rts_use_shortpreamble = false;
687 tcb_desc->rts_use_shortgi = false;
688
689 if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) {
690 /* Use CTS-to-SELF in protection mode. */
691 tcb_desc->rts_enable = true;
692 tcb_desc->cts_enable = true;
693 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
694 } else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) {
695 /* Use RTS-CTS in protection mode. */
696 tcb_desc->rts_enable = true;
697 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
698 }
699 }
700
701 u8 rtl_mrate_idx_to_arfr_id(struct ieee80211_hw *hw, u8 rate_index,
702 enum wireless_mode wirelessmode)
703 {
704 struct rtl_priv *rtlpriv = rtl_priv(hw);
705 struct rtl_phy *rtlphy = &rtlpriv->phy;
706 u8 ret = 0;
707
708 switch (rate_index) {
709 case RATR_INX_WIRELESS_NGB:
710 if (rtlphy->rf_type == RF_1T1R)
711 ret = RATEID_IDX_BGN_40M_1SS;
712 else
713 ret = RATEID_IDX_BGN_40M_2SS;
714 ; break;
715 case RATR_INX_WIRELESS_N:
716 case RATR_INX_WIRELESS_NG:
717 if (rtlphy->rf_type == RF_1T1R)
718 ret = RATEID_IDX_GN_N1SS;
719 else
720 ret = RATEID_IDX_GN_N2SS;
721 ; break;
722 case RATR_INX_WIRELESS_NB:
723 if (rtlphy->rf_type == RF_1T1R)
724 ret = RATEID_IDX_BGN_20M_1SS_BN;
725 else
726 ret = RATEID_IDX_BGN_20M_2SS_BN;
727 ; break;
728 case RATR_INX_WIRELESS_GB:
729 ret = RATEID_IDX_BG;
730 break;
731 case RATR_INX_WIRELESS_G:
732 ret = RATEID_IDX_G;
733 break;
734 case RATR_INX_WIRELESS_B:
735 ret = RATEID_IDX_B;
736 break;
737 case RATR_INX_WIRELESS_MC:
738 if (wirelessmode == WIRELESS_MODE_B ||
739 wirelessmode == WIRELESS_MODE_G ||
740 wirelessmode == WIRELESS_MODE_N_24G ||
741 wirelessmode == WIRELESS_MODE_AC_24G)
742 ret = RATEID_IDX_BG;
743 else
744 ret = RATEID_IDX_G;
745 break;
746 case RATR_INX_WIRELESS_AC_5N:
747 if (rtlphy->rf_type == RF_1T1R)
748 ret = RATEID_IDX_VHT_1SS;
749 else
750 ret = RATEID_IDX_VHT_2SS;
751 break;
752 case RATR_INX_WIRELESS_AC_24N:
753 if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_80) {
754 if (rtlphy->rf_type == RF_1T1R)
755 ret = RATEID_IDX_VHT_1SS;
756 else
757 ret = RATEID_IDX_VHT_2SS;
758 } else {
759 if (rtlphy->rf_type == RF_1T1R)
760 ret = RATEID_IDX_MIX1;
761 else
762 ret = RATEID_IDX_MIX2;
763 }
764 break;
765 default:
766 ret = RATEID_IDX_BGN_40M_2SS;
767 break;
768 }
769 return ret;
770 }
771 EXPORT_SYMBOL(rtl_mrate_idx_to_arfr_id);
772
773 static void _rtl_txrate_selectmode(struct ieee80211_hw *hw,
774 struct ieee80211_sta *sta,
775 struct rtl_tcb_desc *tcb_desc)
776 {
777 #define SET_RATE_ID(rate_id) \
778 ({typeof(rate_id) _id = rate_id; \
779 ((rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID) ? \
780 rtl_mrate_idx_to_arfr_id(hw, _id, \
781 (sta_entry ? sta_entry->wireless_mode : \
782 WIRELESS_MODE_G)) : \
783 _id); })
784
785 struct rtl_priv *rtlpriv = rtl_priv(hw);
786 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
787 struct rtl_sta_info *sta_entry = NULL;
788 u8 ratr_index = SET_RATE_ID(RATR_INX_WIRELESS_MC);
789
790 if (sta) {
791 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
792 ratr_index = sta_entry->ratr_index;
793 }
794 if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) {
795 if (mac->opmode == NL80211_IFTYPE_STATION) {
796 tcb_desc->ratr_index = 0;
797 } else if (mac->opmode == NL80211_IFTYPE_ADHOC ||
798 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
799 if (tcb_desc->multicast || tcb_desc->broadcast) {
800 tcb_desc->hw_rate =
801 rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M];
802 tcb_desc->use_driver_rate = 1;
803 tcb_desc->ratr_index =
804 SET_RATE_ID(RATR_INX_WIRELESS_MC);
805 } else {
806 tcb_desc->ratr_index = ratr_index;
807 }
808 } else if (mac->opmode == NL80211_IFTYPE_AP) {
809 tcb_desc->ratr_index = ratr_index;
810 }
811 }
812
813 if (rtlpriv->dm.useramask) {
814 tcb_desc->ratr_index = ratr_index;
815 /* TODO we will differentiate adhoc and station future */
816 if (mac->opmode == NL80211_IFTYPE_STATION ||
817 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
818 tcb_desc->mac_id = 0;
819
820 if (sta &&
821 (rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID))
822 ; /* use sta_entry->ratr_index */
823 else if (mac->mode == WIRELESS_MODE_AC_5G)
824 tcb_desc->ratr_index =
825 SET_RATE_ID(RATR_INX_WIRELESS_AC_5N);
826 else if (mac->mode == WIRELESS_MODE_AC_24G)
827 tcb_desc->ratr_index =
828 SET_RATE_ID(RATR_INX_WIRELESS_AC_24N);
829 else if (mac->mode == WIRELESS_MODE_N_24G)
830 tcb_desc->ratr_index =
831 SET_RATE_ID(RATR_INX_WIRELESS_NGB);
832 else if (mac->mode == WIRELESS_MODE_N_5G)
833 tcb_desc->ratr_index =
834 SET_RATE_ID(RATR_INX_WIRELESS_NG);
835 else if (mac->mode & WIRELESS_MODE_G)
836 tcb_desc->ratr_index =
837 SET_RATE_ID(RATR_INX_WIRELESS_GB);
838 else if (mac->mode & WIRELESS_MODE_B)
839 tcb_desc->ratr_index =
840 SET_RATE_ID(RATR_INX_WIRELESS_B);
841 else if (mac->mode & WIRELESS_MODE_A)
842 tcb_desc->ratr_index =
843 SET_RATE_ID(RATR_INX_WIRELESS_G);
844
845 } else if (mac->opmode == NL80211_IFTYPE_AP ||
846 mac->opmode == NL80211_IFTYPE_ADHOC) {
847 if (NULL != sta) {
848 if (sta->aid > 0)
849 tcb_desc->mac_id = sta->aid + 1;
850 else
851 tcb_desc->mac_id = 1;
852 } else {
853 tcb_desc->mac_id = 0;
854 }
855 }
856 }
857 #undef SET_RATE_ID
858 }
859
860 static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw,
861 struct ieee80211_sta *sta,
862 struct rtl_tcb_desc *tcb_desc)
863 {
864 struct rtl_priv *rtlpriv = rtl_priv(hw);
865 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
866
867 tcb_desc->packet_bw = false;
868 if (!sta)
869 return;
870 if (mac->opmode == NL80211_IFTYPE_AP ||
871 mac->opmode == NL80211_IFTYPE_ADHOC ||
872 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
873 if (!(sta->ht_cap.ht_supported) ||
874 !(sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))
875 return;
876 } else if (mac->opmode == NL80211_IFTYPE_STATION) {
877 if (!mac->bw_40 || !(sta->ht_cap.ht_supported))
878 return;
879 }
880 if (tcb_desc->multicast || tcb_desc->broadcast)
881 return;
882
883 /*use legency rate, shall use 20MHz */
884 if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M])
885 return;
886
887 tcb_desc->packet_bw = HT_CHANNEL_WIDTH_20_40;
888
889 if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8812AE ||
890 rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8821AE) {
891 if (mac->opmode == NL80211_IFTYPE_AP ||
892 mac->opmode == NL80211_IFTYPE_ADHOC ||
893 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
894 if (!(sta->vht_cap.vht_supported))
895 return;
896 } else if (mac->opmode == NL80211_IFTYPE_STATION) {
897 if (!mac->bw_80 ||
898 !(sta->vht_cap.vht_supported))
899 return;
900 }
901 if (tcb_desc->hw_rate <=
902 rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15])
903 return;
904 tcb_desc->packet_bw = HT_CHANNEL_WIDTH_80;
905 }
906 }
907
908 static u8 _rtl_get_vht_highest_n_rate(struct ieee80211_hw *hw,
909 struct ieee80211_sta *sta)
910 {
911 struct rtl_priv *rtlpriv = rtl_priv(hw);
912 struct rtl_phy *rtlphy = &(rtlpriv->phy);
913 u8 hw_rate;
914 u16 tx_mcs_map = le16_to_cpu(sta->vht_cap.vht_mcs.tx_mcs_map);
915
916 if ((get_rf_type(rtlphy) == RF_2T2R) &&
917 (tx_mcs_map & 0x000c) != 0x000c) {
918 if ((tx_mcs_map & 0x000c) >> 2 ==
919 IEEE80211_VHT_MCS_SUPPORT_0_7)
920 hw_rate =
921 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS7];
922 else if ((tx_mcs_map & 0x000c) >> 2 ==
923 IEEE80211_VHT_MCS_SUPPORT_0_8)
924 hw_rate =
925 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS8];
926 else
927 hw_rate =
928 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
929 } else {
930 if ((tx_mcs_map & 0x0003) ==
931 IEEE80211_VHT_MCS_SUPPORT_0_7)
932 hw_rate =
933 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS7];
934 else if ((tx_mcs_map & 0x0003) ==
935 IEEE80211_VHT_MCS_SUPPORT_0_8)
936 hw_rate =
937 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS8];
938 else
939 hw_rate =
940 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
941 }
942
943 return hw_rate;
944 }
945
946 static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw,
947 struct ieee80211_sta *sta)
948 {
949 struct rtl_priv *rtlpriv = rtl_priv(hw);
950 struct rtl_phy *rtlphy = &rtlpriv->phy;
951 u8 hw_rate;
952
953 if (get_rf_type(rtlphy) == RF_2T2R &&
954 sta->ht_cap.mcs.rx_mask[1] != 0)
955 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15];
956 else
957 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7];
958
959 return hw_rate;
960 }
961
962 /* mac80211's rate_idx is like this:
963 *
964 * 2.4G band:rx_status->band == NL80211_BAND_2GHZ
965 *
966 * B/G rate:
967 * (rx_status->flag & RX_FLAG_HT) = 0,
968 * DESC_RATE1M-->DESC_RATE54M ==> idx is 0-->11,
969 *
970 * N rate:
971 * (rx_status->flag & RX_FLAG_HT) = 1,
972 * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
973 *
974 * 5G band:rx_status->band == NL80211_BAND_5GHZ
975 * A rate:
976 * (rx_status->flag & RX_FLAG_HT) = 0,
977 * DESC_RATE6M-->DESC_RATE54M ==> idx is 0-->7,
978 *
979 * N rate:
980 * (rx_status->flag & RX_FLAG_HT) = 1,
981 * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
982 *
983 * VHT rates:
984 * DESC_RATEVHT1SS_MCS0-->DESC_RATEVHT1SS_MCS9 ==> idx is 0-->9
985 * DESC_RATEVHT2SS_MCS0-->DESC_RATEVHT2SS_MCS9 ==> idx is 0-->9
986 */
987 int rtlwifi_rate_mapping(struct ieee80211_hw *hw, bool isht, bool isvht,
988 u8 desc_rate)
989 {
990 int rate_idx;
991
992 if (isvht) {
993 switch (desc_rate) {
994 case DESC_RATEVHT1SS_MCS0:
995 rate_idx = 0;
996 break;
997 case DESC_RATEVHT1SS_MCS1:
998 rate_idx = 1;
999 break;
1000 case DESC_RATEVHT1SS_MCS2:
1001 rate_idx = 2;
1002 break;
1003 case DESC_RATEVHT1SS_MCS3:
1004 rate_idx = 3;
1005 break;
1006 case DESC_RATEVHT1SS_MCS4:
1007 rate_idx = 4;
1008 break;
1009 case DESC_RATEVHT1SS_MCS5:
1010 rate_idx = 5;
1011 break;
1012 case DESC_RATEVHT1SS_MCS6:
1013 rate_idx = 6;
1014 break;
1015 case DESC_RATEVHT1SS_MCS7:
1016 rate_idx = 7;
1017 break;
1018 case DESC_RATEVHT1SS_MCS8:
1019 rate_idx = 8;
1020 break;
1021 case DESC_RATEVHT1SS_MCS9:
1022 rate_idx = 9;
1023 break;
1024 case DESC_RATEVHT2SS_MCS0:
1025 rate_idx = 0;
1026 break;
1027 case DESC_RATEVHT2SS_MCS1:
1028 rate_idx = 1;
1029 break;
1030 case DESC_RATEVHT2SS_MCS2:
1031 rate_idx = 2;
1032 break;
1033 case DESC_RATEVHT2SS_MCS3:
1034 rate_idx = 3;
1035 break;
1036 case DESC_RATEVHT2SS_MCS4:
1037 rate_idx = 4;
1038 break;
1039 case DESC_RATEVHT2SS_MCS5:
1040 rate_idx = 5;
1041 break;
1042 case DESC_RATEVHT2SS_MCS6:
1043 rate_idx = 6;
1044 break;
1045 case DESC_RATEVHT2SS_MCS7:
1046 rate_idx = 7;
1047 break;
1048 case DESC_RATEVHT2SS_MCS8:
1049 rate_idx = 8;
1050 break;
1051 case DESC_RATEVHT2SS_MCS9:
1052 rate_idx = 9;
1053 break;
1054 default:
1055 rate_idx = 0;
1056 break;
1057 }
1058 return rate_idx;
1059 }
1060 if (false == isht) {
1061 if (NL80211_BAND_2GHZ == hw->conf.chandef.chan->band) {
1062 switch (desc_rate) {
1063 case DESC_RATE1M:
1064 rate_idx = 0;
1065 break;
1066 case DESC_RATE2M:
1067 rate_idx = 1;
1068 break;
1069 case DESC_RATE5_5M:
1070 rate_idx = 2;
1071 break;
1072 case DESC_RATE11M:
1073 rate_idx = 3;
1074 break;
1075 case DESC_RATE6M:
1076 rate_idx = 4;
1077 break;
1078 case DESC_RATE9M:
1079 rate_idx = 5;
1080 break;
1081 case DESC_RATE12M:
1082 rate_idx = 6;
1083 break;
1084 case DESC_RATE18M:
1085 rate_idx = 7;
1086 break;
1087 case DESC_RATE24M:
1088 rate_idx = 8;
1089 break;
1090 case DESC_RATE36M:
1091 rate_idx = 9;
1092 break;
1093 case DESC_RATE48M:
1094 rate_idx = 10;
1095 break;
1096 case DESC_RATE54M:
1097 rate_idx = 11;
1098 break;
1099 default:
1100 rate_idx = 0;
1101 break;
1102 }
1103 } else {
1104 switch (desc_rate) {
1105 case DESC_RATE6M:
1106 rate_idx = 0;
1107 break;
1108 case DESC_RATE9M:
1109 rate_idx = 1;
1110 break;
1111 case DESC_RATE12M:
1112 rate_idx = 2;
1113 break;
1114 case DESC_RATE18M:
1115 rate_idx = 3;
1116 break;
1117 case DESC_RATE24M:
1118 rate_idx = 4;
1119 break;
1120 case DESC_RATE36M:
1121 rate_idx = 5;
1122 break;
1123 case DESC_RATE48M:
1124 rate_idx = 6;
1125 break;
1126 case DESC_RATE54M:
1127 rate_idx = 7;
1128 break;
1129 default:
1130 rate_idx = 0;
1131 break;
1132 }
1133 }
1134 } else {
1135 switch (desc_rate) {
1136 case DESC_RATEMCS0:
1137 rate_idx = 0;
1138 break;
1139 case DESC_RATEMCS1:
1140 rate_idx = 1;
1141 break;
1142 case DESC_RATEMCS2:
1143 rate_idx = 2;
1144 break;
1145 case DESC_RATEMCS3:
1146 rate_idx = 3;
1147 break;
1148 case DESC_RATEMCS4:
1149 rate_idx = 4;
1150 break;
1151 case DESC_RATEMCS5:
1152 rate_idx = 5;
1153 break;
1154 case DESC_RATEMCS6:
1155 rate_idx = 6;
1156 break;
1157 case DESC_RATEMCS7:
1158 rate_idx = 7;
1159 break;
1160 case DESC_RATEMCS8:
1161 rate_idx = 8;
1162 break;
1163 case DESC_RATEMCS9:
1164 rate_idx = 9;
1165 break;
1166 case DESC_RATEMCS10:
1167 rate_idx = 10;
1168 break;
1169 case DESC_RATEMCS11:
1170 rate_idx = 11;
1171 break;
1172 case DESC_RATEMCS12:
1173 rate_idx = 12;
1174 break;
1175 case DESC_RATEMCS13:
1176 rate_idx = 13;
1177 break;
1178 case DESC_RATEMCS14:
1179 rate_idx = 14;
1180 break;
1181 case DESC_RATEMCS15:
1182 rate_idx = 15;
1183 break;
1184 default:
1185 rate_idx = 0;
1186 break;
1187 }
1188 }
1189 return rate_idx;
1190 }
1191 EXPORT_SYMBOL(rtlwifi_rate_mapping);
1192
1193 static u8 _rtl_get_tx_hw_rate(struct ieee80211_hw *hw,
1194 struct ieee80211_tx_info *info)
1195 {
1196 struct rtl_priv *rtlpriv = rtl_priv(hw);
1197 struct ieee80211_tx_rate *r = &info->status.rates[0];
1198 struct ieee80211_rate *txrate;
1199 u8 hw_value = 0x0;
1200
1201 if (r->flags & IEEE80211_TX_RC_MCS) {
1202 /* HT MCS0-15 */
1203 hw_value = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15] - 15 +
1204 r->idx;
1205 } else if (r->flags & IEEE80211_TX_RC_VHT_MCS) {
1206 /* VHT MCS0-9, NSS */
1207 if (ieee80211_rate_get_vht_nss(r) == 2)
1208 hw_value = rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
1209 else
1210 hw_value = rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
1211
1212 hw_value = hw_value - 9 + ieee80211_rate_get_vht_mcs(r);
1213 } else {
1214 /* legacy */
1215 txrate = ieee80211_get_tx_rate(hw, info);
1216
1217 if (txrate)
1218 hw_value = txrate->hw_value;
1219 }
1220
1221 /* check 5G band */
1222 if (rtlpriv->rtlhal.current_bandtype == BAND_ON_5G &&
1223 hw_value < rtlpriv->cfg->maps[RTL_RC_OFDM_RATE6M])
1224 hw_value = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE6M];
1225
1226 return hw_value;
1227 }
1228
1229 void rtl_get_tcb_desc(struct ieee80211_hw *hw,
1230 struct ieee80211_tx_info *info,
1231 struct ieee80211_sta *sta,
1232 struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc)
1233 {
1234 #define SET_RATE_ID(rate_id) \
1235 ({typeof(rate_id) _id = rate_id; \
1236 ((rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID) ? \
1237 rtl_mrate_idx_to_arfr_id(hw, _id, \
1238 (sta_entry ? sta_entry->wireless_mode : \
1239 WIRELESS_MODE_G)) : \
1240 _id); })
1241
1242 struct rtl_priv *rtlpriv = rtl_priv(hw);
1243 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
1244 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1245 struct rtl_sta_info *sta_entry =
1246 (sta ? (struct rtl_sta_info *)sta->drv_priv : NULL);
1247
1248 __le16 fc = rtl_get_fc(skb);
1249
1250 tcb_desc->hw_rate = _rtl_get_tx_hw_rate(hw, info);
1251
1252 if (rtl_is_tx_report_skb(hw, skb))
1253 tcb_desc->use_spe_rpt = 1;
1254
1255 if (ieee80211_is_data(fc)) {
1256 /*
1257 *we set data rate INX 0
1258 *in rtl_rc.c if skb is special data or
1259 *mgt which need low data rate.
1260 */
1261
1262 /*
1263 *So tcb_desc->hw_rate is just used for
1264 *special data and mgt frames
1265 */
1266 if (info->control.rates[0].idx == 0 ||
1267 ieee80211_is_nullfunc(fc)) {
1268 tcb_desc->use_driver_rate = true;
1269 tcb_desc->ratr_index =
1270 SET_RATE_ID(RATR_INX_WIRELESS_MC);
1271
1272 tcb_desc->disable_ratefallback = 1;
1273 } else {
1274 /*
1275 *because hw will nerver use hw_rate
1276 *when tcb_desc->use_driver_rate = false
1277 *so we never set highest N rate here,
1278 *and N rate will all be controlled by FW
1279 *when tcb_desc->use_driver_rate = false
1280 */
1281 if (sta && sta->vht_cap.vht_supported) {
1282 tcb_desc->hw_rate =
1283 _rtl_get_vht_highest_n_rate(hw, sta);
1284 } else {
1285 if (sta && sta->ht_cap.ht_supported) {
1286 tcb_desc->hw_rate =
1287 _rtl_get_highest_n_rate(hw, sta);
1288 } else {
1289 if (rtlmac->mode == WIRELESS_MODE_B) {
1290 tcb_desc->hw_rate =
1291 rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M];
1292 } else {
1293 tcb_desc->hw_rate =
1294 rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M];
1295 }
1296 }
1297 }
1298 }
1299
1300 if (is_multicast_ether_addr(hdr->addr1))
1301 tcb_desc->multicast = 1;
1302 else if (is_broadcast_ether_addr(hdr->addr1))
1303 tcb_desc->broadcast = 1;
1304
1305 _rtl_txrate_selectmode(hw, sta, tcb_desc);
1306 _rtl_query_bandwidth_mode(hw, sta, tcb_desc);
1307 _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info);
1308 _rtl_query_shortgi(hw, sta, tcb_desc, info);
1309 _rtl_query_protection_mode(hw, tcb_desc, info);
1310 } else {
1311 tcb_desc->use_driver_rate = true;
1312 tcb_desc->ratr_index = SET_RATE_ID(RATR_INX_WIRELESS_MC);
1313 tcb_desc->disable_ratefallback = 1;
1314 tcb_desc->mac_id = 0;
1315 tcb_desc->packet_bw = false;
1316 }
1317 #undef SET_RATE_ID
1318 }
1319 EXPORT_SYMBOL(rtl_get_tcb_desc);
1320
1321 bool rtl_tx_mgmt_proc(struct ieee80211_hw *hw, struct sk_buff *skb)
1322 {
1323 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1324 struct rtl_priv *rtlpriv = rtl_priv(hw);
1325 __le16 fc = rtl_get_fc(skb);
1326
1327 if (rtlpriv->dm.supp_phymode_switch &&
1328 mac->link_state < MAC80211_LINKED &&
1329 (ieee80211_is_auth(fc) || ieee80211_is_probe_req(fc))) {
1330 if (rtlpriv->cfg->ops->chk_switch_dmdp)
1331 rtlpriv->cfg->ops->chk_switch_dmdp(hw);
1332 }
1333 if (ieee80211_is_auth(fc)) {
1334 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n");
1335
1336 mac->link_state = MAC80211_LINKING;
1337 /* Dul mac */
1338 rtlpriv->phy.need_iqk = true;
1339
1340 }
1341
1342 return true;
1343 }
1344 EXPORT_SYMBOL_GPL(rtl_tx_mgmt_proc);
1345
1346 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw, u8 *sa,
1347 u8 *bssid, u16 tid);
1348
1349 static void process_agg_start(struct ieee80211_hw *hw,
1350 struct ieee80211_hdr *hdr, u16 tid)
1351 {
1352 struct rtl_priv *rtlpriv = rtl_priv(hw);
1353 struct ieee80211_rx_status rx_status = { 0 };
1354 struct sk_buff *skb_delba = NULL;
1355
1356 skb_delba = rtl_make_del_ba(hw, hdr->addr2, hdr->addr3, tid);
1357 if (skb_delba) {
1358 rx_status.freq = hw->conf.chandef.chan->center_freq;
1359 rx_status.band = hw->conf.chandef.chan->band;
1360 rx_status.flag |= RX_FLAG_DECRYPTED;
1361 rx_status.flag |= RX_FLAG_MACTIME_START;
1362 rx_status.rate_idx = 0;
1363 rx_status.signal = 50 + 10;
1364 memcpy(IEEE80211_SKB_RXCB(skb_delba),
1365 &rx_status, sizeof(rx_status));
1366 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG,
1367 "fake del\n",
1368 skb_delba->data,
1369 skb_delba->len);
1370 ieee80211_rx_irqsafe(hw, skb_delba);
1371 }
1372 }
1373
1374 bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
1375 {
1376 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1377 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1378 struct rtl_priv *rtlpriv = rtl_priv(hw);
1379 __le16 fc = rtl_get_fc(skb);
1380 u8 *act = (u8 *)(((u8 *)skb->data + MAC80211_3ADDR_LEN));
1381 u8 category;
1382
1383 if (!ieee80211_is_action(fc))
1384 return true;
1385
1386 category = *act;
1387 act++;
1388 switch (category) {
1389 case ACT_CAT_BA:
1390 switch (*act) {
1391 case ACT_ADDBAREQ:
1392 if (mac->act_scanning)
1393 return false;
1394
1395 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1396 "%s ACT_ADDBAREQ From :%pM\n",
1397 is_tx ? "Tx" : "Rx", hdr->addr2);
1398 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, "req\n",
1399 skb->data, skb->len);
1400 if (!is_tx) {
1401 struct ieee80211_sta *sta = NULL;
1402 struct rtl_sta_info *sta_entry = NULL;
1403 struct rtl_tid_data *tid_data;
1404 struct ieee80211_mgmt *mgmt = (void *)skb->data;
1405 u16 capab = 0, tid = 0;
1406
1407 rcu_read_lock();
1408 sta = rtl_find_sta(hw, hdr->addr3);
1409 if (sta == NULL) {
1410 RT_TRACE(rtlpriv, COMP_SEND | COMP_RECV,
1411 DBG_DMESG, "sta is NULL\n");
1412 rcu_read_unlock();
1413 return true;
1414 }
1415
1416 sta_entry =
1417 (struct rtl_sta_info *)sta->drv_priv;
1418 if (!sta_entry) {
1419 rcu_read_unlock();
1420 return true;
1421 }
1422 capab =
1423 le16_to_cpu(mgmt->u.action.u.addba_req.capab);
1424 tid = (capab &
1425 IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
1426 if (tid >= MAX_TID_COUNT) {
1427 rcu_read_unlock();
1428 return true;
1429 }
1430 tid_data = &sta_entry->tids[tid];
1431 if (tid_data->agg.rx_agg_state ==
1432 RTL_RX_AGG_START)
1433 process_agg_start(hw, hdr, tid);
1434 rcu_read_unlock();
1435 }
1436 break;
1437 case ACT_ADDBARSP:
1438 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1439 "%s ACT_ADDBARSP From :%pM\n",
1440 is_tx ? "Tx" : "Rx", hdr->addr2);
1441 break;
1442 case ACT_DELBA:
1443 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1444 "ACT_ADDBADEL From :%pM\n", hdr->addr2);
1445 break;
1446 }
1447 break;
1448 default:
1449 break;
1450 }
1451
1452 return true;
1453 }
1454 EXPORT_SYMBOL_GPL(rtl_action_proc);
1455
1456 static void setup_special_tx(struct rtl_priv *rtlpriv, struct rtl_ps_ctl *ppsc,
1457 int type)
1458 {
1459 struct ieee80211_hw *hw = rtlpriv->hw;
1460
1461 rtlpriv->ra.is_special_data = true;
1462 if (rtlpriv->cfg->ops->get_btc_status())
1463 rtlpriv->btcoexist.btc_ops->btc_special_packet_notify(
1464 rtlpriv, type);
1465 rtl_lps_leave(hw);
1466 ppsc->last_delaylps_stamp_jiffies = jiffies;
1467 }
1468
1469 static const u8 *rtl_skb_ether_type_ptr(struct ieee80211_hw *hw,
1470 struct sk_buff *skb, bool is_enc)
1471 {
1472 struct rtl_priv *rtlpriv = rtl_priv(hw);
1473 u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb);
1474 u8 encrypt_header_len = 0;
1475 u8 offset;
1476
1477 switch (rtlpriv->sec.pairwise_enc_algorithm) {
1478 case WEP40_ENCRYPTION:
1479 case WEP104_ENCRYPTION:
1480 encrypt_header_len = 4;/*WEP_IV_LEN*/
1481 break;
1482 case TKIP_ENCRYPTION:
1483 encrypt_header_len = 8;/*TKIP_IV_LEN*/
1484 break;
1485 case AESCCMP_ENCRYPTION:
1486 encrypt_header_len = 8;/*CCMP_HDR_LEN;*/
1487 break;
1488 default:
1489 break;
1490 }
1491
1492 offset = mac_hdr_len + SNAP_SIZE;
1493 if (is_enc)
1494 offset += encrypt_header_len;
1495
1496 return skb->data + offset;
1497 }
1498
1499 /*should call before software enc*/
1500 u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx,
1501 bool is_enc)
1502 {
1503 struct rtl_priv *rtlpriv = rtl_priv(hw);
1504 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1505 __le16 fc = rtl_get_fc(skb);
1506 u16 ether_type;
1507 const u8 *ether_type_ptr;
1508 const struct iphdr *ip;
1509
1510 if (!ieee80211_is_data(fc))
1511 goto end;
1512
1513 ether_type_ptr = rtl_skb_ether_type_ptr(hw, skb, is_enc);
1514 ether_type = be16_to_cpup((__be16 *)ether_type_ptr);
1515
1516 if (ETH_P_IP == ether_type) {
1517 ip = (struct iphdr *)((u8 *)ether_type_ptr +
1518 PROTOC_TYPE_SIZE);
1519 if (IPPROTO_UDP == ip->protocol) {
1520 struct udphdr *udp = (struct udphdr *)((u8 *)ip +
1521 (ip->ihl << 2));
1522 if (((((u8 *)udp)[1] == 68) &&
1523 (((u8 *)udp)[3] == 67)) ||
1524 ((((u8 *)udp)[1] == 67) &&
1525 (((u8 *)udp)[3] == 68))) {
1526 /* 68 : UDP BOOTP client
1527 * 67 : UDP BOOTP server
1528 */
1529 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV),
1530 DBG_DMESG, "dhcp %s !!\n",
1531 (is_tx) ? "Tx" : "Rx");
1532
1533 if (is_tx)
1534 setup_special_tx(rtlpriv, ppsc,
1535 PACKET_DHCP);
1536
1537 return true;
1538 }
1539 }
1540 } else if (ETH_P_ARP == ether_type) {
1541 if (is_tx)
1542 setup_special_tx(rtlpriv, ppsc, PACKET_ARP);
1543
1544 return true;
1545 } else if (ETH_P_PAE == ether_type) {
1546 /* EAPOL is seens as in-4way */
1547 rtlpriv->btcoexist.btc_info.in_4way = true;
1548 rtlpriv->btcoexist.btc_info.in_4way_ts = jiffies;
1549 rtlpriv->btcoexist.btc_info.in_4way_ts = jiffies;
1550
1551 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1552 "802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx");
1553
1554 if (is_tx) {
1555 rtlpriv->ra.is_special_data = true;
1556 rtl_lps_leave(hw);
1557 ppsc->last_delaylps_stamp_jiffies = jiffies;
1558
1559 setup_special_tx(rtlpriv, ppsc, PACKET_EAPOL);
1560 }
1561
1562 return true;
1563 } else if (ETH_P_IPV6 == ether_type) {
1564 /* TODO: Handle any IPv6 cases that need special handling.
1565 * For now, always return false
1566 */
1567 goto end;
1568 }
1569
1570 end:
1571 rtlpriv->ra.is_special_data = false;
1572 return false;
1573 }
1574 EXPORT_SYMBOL_GPL(rtl_is_special_data);
1575
1576 bool rtl_is_tx_report_skb(struct ieee80211_hw *hw, struct sk_buff *skb)
1577 {
1578 u16 ether_type;
1579 const u8 *ether_type_ptr;
1580
1581 ether_type_ptr = rtl_skb_ether_type_ptr(hw, skb, true);
1582 ether_type = be16_to_cpup((__be16 *)ether_type_ptr);
1583
1584 /* EAPOL */
1585 if (ether_type == ETH_P_PAE)
1586 return true;
1587
1588 return false;
1589 }
1590
1591 static u16 rtl_get_tx_report_sn(struct ieee80211_hw *hw)
1592 {
1593 struct rtl_priv *rtlpriv = rtl_priv(hw);
1594 struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1595 u16 sn;
1596
1597 sn = atomic_inc_return(&tx_report->sn) & 0x0FFF;
1598
1599 tx_report->last_sent_sn = sn;
1600 tx_report->last_sent_time = jiffies;
1601
1602 RT_TRACE(rtlpriv, COMP_TX_REPORT, DBG_DMESG,
1603 "Send TX-Report sn=0x%X\n", sn);
1604
1605 return sn;
1606 }
1607
1608 void rtl_get_tx_report(struct rtl_tcb_desc *ptcb_desc, u8 *pdesc,
1609 struct ieee80211_hw *hw)
1610 {
1611 if (ptcb_desc->use_spe_rpt) {
1612 u16 sn = rtl_get_tx_report_sn(hw);
1613
1614 SET_TX_DESC_SPE_RPT(pdesc, 1);
1615 SET_TX_DESC_SW_DEFINE(pdesc, sn);
1616 }
1617 }
1618 EXPORT_SYMBOL_GPL(rtl_get_tx_report);
1619
1620 void rtl_tx_report_handler(struct ieee80211_hw *hw, u8 *tmp_buf, u8 c2h_cmd_len)
1621 {
1622 struct rtl_priv *rtlpriv = rtl_priv(hw);
1623 struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1624 u16 sn;
1625
1626 sn = ((tmp_buf[7] & 0x0F) << 8) | tmp_buf[6];
1627
1628 tx_report->last_recv_sn = sn;
1629
1630 RT_TRACE(rtlpriv, COMP_TX_REPORT, DBG_DMESG,
1631 "Recv TX-Report st=0x%02X sn=0x%X retry=0x%X\n",
1632 tmp_buf[0], sn, tmp_buf[2]);
1633 }
1634 EXPORT_SYMBOL_GPL(rtl_tx_report_handler);
1635
1636 bool rtl_check_tx_report_acked(struct ieee80211_hw *hw)
1637 {
1638 struct rtl_priv *rtlpriv = rtl_priv(hw);
1639 struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1640
1641 if (tx_report->last_sent_sn == tx_report->last_recv_sn)
1642 return true;
1643
1644 if (time_before(tx_report->last_sent_time + 3 * HZ, jiffies)) {
1645 RT_TRACE(rtlpriv, COMP_TX_REPORT, DBG_WARNING,
1646 "Check TX-Report timeout!!\n");
1647 return true; /* 3 sec. (timeout) seen as acked */
1648 }
1649
1650 return false;
1651 }
1652
1653 void rtl_wait_tx_report_acked(struct ieee80211_hw *hw, u32 wait_ms)
1654 {
1655 struct rtl_priv *rtlpriv = rtl_priv(hw);
1656 int i;
1657
1658 for (i = 0; i < wait_ms; i++) {
1659 if (rtl_check_tx_report_acked(hw))
1660 break;
1661 usleep_range(1000, 2000);
1662 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1663 "Wait 1ms (%d/%d) to disable key.\n", i, wait_ms);
1664 }
1665 }
1666
1667 u32 rtl_get_hal_edca_param(struct ieee80211_hw *hw,
1668 struct ieee80211_vif *vif,
1669 enum wireless_mode wirelessmode,
1670 struct ieee80211_tx_queue_params *param)
1671 {
1672 u32 reg = 0;
1673 u8 sifstime = 10;
1674 u8 slottime = 20;
1675
1676 /* AIFS = AIFSN * slot time + SIFS */
1677 switch (wirelessmode) {
1678 case WIRELESS_MODE_A:
1679 case WIRELESS_MODE_N_24G:
1680 case WIRELESS_MODE_N_5G:
1681 case WIRELESS_MODE_AC_5G:
1682 case WIRELESS_MODE_AC_24G:
1683 sifstime = 16;
1684 slottime = 9;
1685 break;
1686 case WIRELESS_MODE_G:
1687 slottime = (vif->bss_conf.use_short_slot ? 9 : 20);
1688 break;
1689 default:
1690 break;
1691 }
1692
1693 reg |= (param->txop & 0x7FF) << 16;
1694 reg |= (fls(param->cw_max) & 0xF) << 12;
1695 reg |= (fls(param->cw_min) & 0xF) << 8;
1696 reg |= (param->aifs & 0x0F) * slottime + sifstime;
1697
1698 return reg;
1699 }
1700 EXPORT_SYMBOL_GPL(rtl_get_hal_edca_param);
1701
1702 /*********************************************************
1703 *
1704 * functions called by core.c
1705 *
1706 *********************************************************/
1707 int rtl_tx_agg_start(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1708 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
1709 {
1710 struct rtl_priv *rtlpriv = rtl_priv(hw);
1711 struct rtl_tid_data *tid_data;
1712 struct rtl_sta_info *sta_entry = NULL;
1713
1714 if (sta == NULL)
1715 return -EINVAL;
1716
1717 if (unlikely(tid >= MAX_TID_COUNT))
1718 return -EINVAL;
1719
1720 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1721 if (!sta_entry)
1722 return -ENXIO;
1723 tid_data = &sta_entry->tids[tid];
1724
1725 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1726 "on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1727 *ssn);
1728
1729 tid_data->agg.agg_state = RTL_AGG_START;
1730
1731 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1732 return 0;
1733 }
1734
1735 int rtl_tx_agg_stop(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1736 struct ieee80211_sta *sta, u16 tid)
1737 {
1738 struct rtl_priv *rtlpriv = rtl_priv(hw);
1739 struct rtl_sta_info *sta_entry = NULL;
1740
1741 if (sta == NULL)
1742 return -EINVAL;
1743
1744 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1745 "on ra = %pM tid = %d\n", sta->addr, tid);
1746
1747 if (unlikely(tid >= MAX_TID_COUNT))
1748 return -EINVAL;
1749
1750 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1751 sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP;
1752
1753 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1754 return 0;
1755 }
1756
1757 int rtl_rx_agg_start(struct ieee80211_hw *hw,
1758 struct ieee80211_sta *sta, u16 tid)
1759 {
1760 struct rtl_priv *rtlpriv = rtl_priv(hw);
1761 struct rtl_tid_data *tid_data;
1762 struct rtl_sta_info *sta_entry = NULL;
1763 u8 reject_agg;
1764
1765 if (sta == NULL)
1766 return -EINVAL;
1767
1768 if (unlikely(tid >= MAX_TID_COUNT))
1769 return -EINVAL;
1770
1771 if (rtlpriv->cfg->ops->get_btc_status()) {
1772 rtlpriv->btcoexist.btc_ops->btc_get_ampdu_cfg(rtlpriv,
1773 &reject_agg,
1774 NULL, NULL);
1775 if (reject_agg)
1776 return -EINVAL;
1777 }
1778
1779 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1780 if (!sta_entry)
1781 return -ENXIO;
1782 tid_data = &sta_entry->tids[tid];
1783
1784 RT_TRACE(rtlpriv, COMP_RECV, DBG_DMESG,
1785 "on ra = %pM tid = %d\n", sta->addr, tid);
1786
1787 tid_data->agg.rx_agg_state = RTL_RX_AGG_START;
1788 return 0;
1789 }
1790
1791 int rtl_rx_agg_stop(struct ieee80211_hw *hw,
1792 struct ieee80211_sta *sta, u16 tid)
1793 {
1794 struct rtl_priv *rtlpriv = rtl_priv(hw);
1795 struct rtl_sta_info *sta_entry = NULL;
1796
1797 if (sta == NULL)
1798 return -EINVAL;
1799
1800 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1801 "on ra = %pM tid = %d\n", sta->addr, tid);
1802
1803 if (unlikely(tid >= MAX_TID_COUNT))
1804 return -EINVAL;
1805
1806 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1807 sta_entry->tids[tid].agg.rx_agg_state = RTL_RX_AGG_STOP;
1808
1809 return 0;
1810 }
1811 int rtl_tx_agg_oper(struct ieee80211_hw *hw,
1812 struct ieee80211_sta *sta, u16 tid)
1813 {
1814 struct rtl_priv *rtlpriv = rtl_priv(hw);
1815 struct rtl_sta_info *sta_entry = NULL;
1816
1817 if (sta == NULL)
1818 return -EINVAL;
1819
1820 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1821 "on ra = %pM tid = %d\n", sta->addr, tid);
1822
1823 if (unlikely(tid >= MAX_TID_COUNT))
1824 return -EINVAL;
1825
1826 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1827 sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL;
1828
1829 return 0;
1830 }
1831
1832 void rtl_rx_ampdu_apply(struct rtl_priv *rtlpriv)
1833 {
1834 struct rtl_btc_ops *btc_ops = rtlpriv->btcoexist.btc_ops;
1835 u8 reject_agg = 0, ctrl_agg_size = 0, agg_size = 0;
1836
1837 if (rtlpriv->cfg->ops->get_btc_status())
1838 btc_ops->btc_get_ampdu_cfg(rtlpriv, &reject_agg,
1839 &ctrl_agg_size, &agg_size);
1840
1841 RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_DMESG,
1842 "Set RX AMPDU: coex - reject=%d, ctrl_agg_size=%d, size=%d",
1843 reject_agg, ctrl_agg_size, agg_size);
1844
1845 rtlpriv->hw->max_rx_aggregation_subframes =
1846 (ctrl_agg_size ? agg_size : IEEE80211_MAX_AMPDU_BUF);
1847 }
1848 EXPORT_SYMBOL(rtl_rx_ampdu_apply);
1849
1850 /*********************************************************
1851 *
1852 * wq & timer callback functions
1853 *
1854 *********************************************************/
1855 /* this function is used for roaming */
1856 void rtl_beacon_statistic(struct ieee80211_hw *hw, struct sk_buff *skb)
1857 {
1858 struct rtl_priv *rtlpriv = rtl_priv(hw);
1859 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1860
1861 if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION)
1862 return;
1863
1864 if (rtlpriv->mac80211.link_state < MAC80211_LINKED)
1865 return;
1866
1867 /* check if this really is a beacon */
1868 if (!ieee80211_is_beacon(hdr->frame_control) &&
1869 !ieee80211_is_probe_resp(hdr->frame_control))
1870 return;
1871
1872 /* min. beacon length + FCS_LEN */
1873 if (skb->len <= 40 + FCS_LEN)
1874 return;
1875
1876 /* and only beacons from the associated BSSID, please */
1877 if (!ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid))
1878 return;
1879
1880 rtlpriv->link_info.bcn_rx_inperiod++;
1881 }
1882 EXPORT_SYMBOL_GPL(rtl_beacon_statistic);
1883
1884 static void rtl_free_entries_from_scan_list(struct ieee80211_hw *hw)
1885 {
1886 struct rtl_priv *rtlpriv = rtl_priv(hw);
1887 struct rtl_bssid_entry *entry, *next;
1888
1889 list_for_each_entry_safe(entry, next, &rtlpriv->scan_list.list, list) {
1890 list_del(&entry->list);
1891 kfree(entry);
1892 rtlpriv->scan_list.num--;
1893 }
1894 }
1895
1896 void rtl_scan_list_expire(struct ieee80211_hw *hw)
1897 {
1898 struct rtl_priv *rtlpriv = rtl_priv(hw);
1899 struct rtl_bssid_entry *entry, *next;
1900 unsigned long flags;
1901
1902 spin_lock_irqsave(&rtlpriv->locks.scan_list_lock, flags);
1903
1904 list_for_each_entry_safe(entry, next, &rtlpriv->scan_list.list, list) {
1905 /* 180 seconds */
1906 if (jiffies_to_msecs(jiffies - entry->age) < 180000)
1907 continue;
1908
1909 list_del(&entry->list);
1910 rtlpriv->scan_list.num--;
1911
1912 RT_TRACE(rtlpriv, COMP_SCAN, DBG_LOUD,
1913 "BSSID=%pM is expire in scan list (total=%d)\n",
1914 entry->bssid, rtlpriv->scan_list.num);
1915 kfree(entry);
1916 }
1917
1918 spin_unlock_irqrestore(&rtlpriv->locks.scan_list_lock, flags);
1919
1920 rtlpriv->btcoexist.btc_info.ap_num = rtlpriv->scan_list.num;
1921 }
1922
1923 void rtl_collect_scan_list(struct ieee80211_hw *hw, struct sk_buff *skb)
1924 {
1925 struct rtl_priv *rtlpriv = rtl_priv(hw);
1926 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1927 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1928 unsigned long flags;
1929
1930 struct rtl_bssid_entry *entry;
1931 bool entry_found = false;
1932
1933 /* check if it is scanning */
1934 if (!mac->act_scanning)
1935 return;
1936
1937 /* check if this really is a beacon */
1938 if (!ieee80211_is_beacon(hdr->frame_control) &&
1939 !ieee80211_is_probe_resp(hdr->frame_control))
1940 return;
1941
1942 spin_lock_irqsave(&rtlpriv->locks.scan_list_lock, flags);
1943
1944 list_for_each_entry(entry, &rtlpriv->scan_list.list, list) {
1945 if (memcmp(entry->bssid, hdr->addr3, ETH_ALEN) == 0) {
1946 list_del_init(&entry->list);
1947 entry_found = true;
1948 RT_TRACE(rtlpriv, COMP_SCAN, DBG_LOUD,
1949 "Update BSSID=%pM to scan list (total=%d)\n",
1950 hdr->addr3, rtlpriv->scan_list.num);
1951 break;
1952 }
1953 }
1954
1955 if (!entry_found) {
1956 entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
1957
1958 if (!entry)
1959 goto label_err;
1960
1961 memcpy(entry->bssid, hdr->addr3, ETH_ALEN);
1962 rtlpriv->scan_list.num++;
1963
1964 RT_TRACE(rtlpriv, COMP_SCAN, DBG_LOUD,
1965 "Add BSSID=%pM to scan list (total=%d)\n",
1966 hdr->addr3, rtlpriv->scan_list.num);
1967 }
1968
1969 entry->age = jiffies;
1970
1971 list_add_tail(&entry->list, &rtlpriv->scan_list.list);
1972
1973 label_err:
1974 spin_unlock_irqrestore(&rtlpriv->locks.scan_list_lock, flags);
1975 }
1976 EXPORT_SYMBOL(rtl_collect_scan_list);
1977
1978 void rtl_watchdog_wq_callback(void *data)
1979 {
1980 struct rtl_works *rtlworks = container_of_dwork_rtl(data,
1981 struct rtl_works,
1982 watchdog_wq);
1983 struct ieee80211_hw *hw = rtlworks->hw;
1984 struct rtl_priv *rtlpriv = rtl_priv(hw);
1985 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1986 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1987 bool busytraffic = false;
1988 bool tx_busy_traffic = false;
1989 bool rx_busy_traffic = false;
1990 bool higher_busytraffic = false;
1991 bool higher_busyrxtraffic = false;
1992 u8 idx, tid;
1993 u32 rx_cnt_inp4eriod = 0;
1994 u32 tx_cnt_inp4eriod = 0;
1995 u32 aver_rx_cnt_inperiod = 0;
1996 u32 aver_tx_cnt_inperiod = 0;
1997 u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0};
1998 u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0};
1999
2000 if (is_hal_stop(rtlhal))
2001 return;
2002
2003 /* <1> Determine if action frame is allowed */
2004 if (mac->link_state > MAC80211_NOLINK) {
2005 if (mac->cnt_after_linked < 20)
2006 mac->cnt_after_linked++;
2007 } else {
2008 mac->cnt_after_linked = 0;
2009 }
2010
2011 /* <2> to check if traffic busy, if
2012 * busytraffic we don't change channel
2013 */
2014 if (mac->link_state >= MAC80211_LINKED) {
2015
2016 /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */
2017 for (idx = 0; idx <= 2; idx++) {
2018 rtlpriv->link_info.num_rx_in4period[idx] =
2019 rtlpriv->link_info.num_rx_in4period[idx + 1];
2020 rtlpriv->link_info.num_tx_in4period[idx] =
2021 rtlpriv->link_info.num_tx_in4period[idx + 1];
2022 }
2023 rtlpriv->link_info.num_rx_in4period[3] =
2024 rtlpriv->link_info.num_rx_inperiod;
2025 rtlpriv->link_info.num_tx_in4period[3] =
2026 rtlpriv->link_info.num_tx_inperiod;
2027 for (idx = 0; idx <= 3; idx++) {
2028 rx_cnt_inp4eriod +=
2029 rtlpriv->link_info.num_rx_in4period[idx];
2030 tx_cnt_inp4eriod +=
2031 rtlpriv->link_info.num_tx_in4period[idx];
2032 }
2033 aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4;
2034 aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4;
2035
2036 /* (2) check traffic busy */
2037 if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) {
2038 busytraffic = true;
2039 if (aver_rx_cnt_inperiod > aver_tx_cnt_inperiod)
2040 rx_busy_traffic = true;
2041 else
2042 tx_busy_traffic = false;
2043 }
2044
2045 /* Higher Tx/Rx data. */
2046 if (aver_rx_cnt_inperiod > 4000 ||
2047 aver_tx_cnt_inperiod > 4000) {
2048 higher_busytraffic = true;
2049
2050 /* Extremely high Rx data. */
2051 if (aver_rx_cnt_inperiod > 5000)
2052 higher_busyrxtraffic = true;
2053 }
2054
2055 /* check every tid's tx traffic */
2056 for (tid = 0; tid <= 7; tid++) {
2057 for (idx = 0; idx <= 2; idx++)
2058 rtlpriv->link_info.tidtx_in4period[tid][idx] =
2059 rtlpriv->link_info.tidtx_in4period[tid]
2060 [idx + 1];
2061 rtlpriv->link_info.tidtx_in4period[tid][3] =
2062 rtlpriv->link_info.tidtx_inperiod[tid];
2063
2064 for (idx = 0; idx <= 3; idx++)
2065 tidtx_inp4eriod[tid] +=
2066 rtlpriv->link_info.tidtx_in4period[tid][idx];
2067 aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4;
2068 if (aver_tidtx_inperiod[tid] > 5000)
2069 rtlpriv->link_info.higher_busytxtraffic[tid] =
2070 true;
2071 else
2072 rtlpriv->link_info.higher_busytxtraffic[tid] =
2073 false;
2074 }
2075
2076 /* PS is controlled by coex. */
2077 if (rtlpriv->cfg->ops->get_btc_status() &&
2078 rtlpriv->btcoexist.btc_ops->btc_is_bt_ctrl_lps(rtlpriv))
2079 goto label_lps_done;
2080
2081 if (rtlpriv->link_info.num_rx_inperiod +
2082 rtlpriv->link_info.num_tx_inperiod > 8 ||
2083 rtlpriv->link_info.num_rx_inperiod > 2)
2084 rtl_lps_leave(hw);
2085 else
2086 rtl_lps_enter(hw);
2087
2088 label_lps_done:
2089 ;
2090 }
2091
2092 rtlpriv->link_info.num_rx_inperiod = 0;
2093 rtlpriv->link_info.num_tx_inperiod = 0;
2094 for (tid = 0; tid <= 7; tid++)
2095 rtlpriv->link_info.tidtx_inperiod[tid] = 0;
2096
2097 rtlpriv->link_info.busytraffic = busytraffic;
2098 rtlpriv->link_info.higher_busytraffic = higher_busytraffic;
2099 rtlpriv->link_info.rx_busy_traffic = rx_busy_traffic;
2100 rtlpriv->link_info.tx_busy_traffic = tx_busy_traffic;
2101 rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic;
2102
2103 rtlpriv->stats.txbytesunicast_inperiod =
2104 rtlpriv->stats.txbytesunicast -
2105 rtlpriv->stats.txbytesunicast_last;
2106 rtlpriv->stats.rxbytesunicast_inperiod =
2107 rtlpriv->stats.rxbytesunicast -
2108 rtlpriv->stats.rxbytesunicast_last;
2109 rtlpriv->stats.txbytesunicast_last = rtlpriv->stats.txbytesunicast;
2110 rtlpriv->stats.rxbytesunicast_last = rtlpriv->stats.rxbytesunicast;
2111
2112 rtlpriv->stats.txbytesunicast_inperiod_tp =
2113 (u32)(rtlpriv->stats.txbytesunicast_inperiod * 8 / 2 /
2114 1024 / 1024);
2115 rtlpriv->stats.rxbytesunicast_inperiod_tp =
2116 (u32)(rtlpriv->stats.rxbytesunicast_inperiod * 8 / 2 /
2117 1024 / 1024);
2118
2119 /* <3> DM */
2120 if (!rtlpriv->cfg->mod_params->disable_watchdog)
2121 rtlpriv->cfg->ops->dm_watchdog(hw);
2122
2123 /* <4> roaming */
2124 if (mac->link_state == MAC80211_LINKED &&
2125 mac->opmode == NL80211_IFTYPE_STATION) {
2126 if ((rtlpriv->link_info.bcn_rx_inperiod +
2127 rtlpriv->link_info.num_rx_inperiod) == 0) {
2128 rtlpriv->link_info.roam_times++;
2129 RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG,
2130 "AP off for %d s\n",
2131 (rtlpriv->link_info.roam_times * 2));
2132
2133 /* if we can't recv beacon for 10s,
2134 * we should reconnect this AP
2135 */
2136 if (rtlpriv->link_info.roam_times >= 5) {
2137 pr_err("AP off, try to reconnect now\n");
2138 rtlpriv->link_info.roam_times = 0;
2139 ieee80211_connection_loss(
2140 rtlpriv->mac80211.vif);
2141 }
2142 } else {
2143 rtlpriv->link_info.roam_times = 0;
2144 }
2145 }
2146
2147 if (rtlpriv->cfg->ops->get_btc_status())
2148 rtlpriv->btcoexist.btc_ops->btc_periodical(rtlpriv);
2149
2150 if (rtlpriv->btcoexist.btc_info.in_4way) {
2151 if (time_after(jiffies, rtlpriv->btcoexist.btc_info.in_4way_ts +
2152 msecs_to_jiffies(IN_4WAY_TIMEOUT_TIME)))
2153 rtlpriv->btcoexist.btc_info.in_4way = false;
2154 }
2155
2156 rtlpriv->link_info.bcn_rx_inperiod = 0;
2157
2158 /* <6> scan list */
2159 rtl_scan_list_expire(hw);
2160 }
2161
2162 void rtl_watch_dog_timer_callback(struct timer_list *t)
2163 {
2164 struct rtl_priv *rtlpriv = from_timer(rtlpriv, t, works.watchdog_timer);
2165
2166 queue_delayed_work(rtlpriv->works.rtl_wq,
2167 &rtlpriv->works.watchdog_wq, 0);
2168
2169 mod_timer(&rtlpriv->works.watchdog_timer,
2170 jiffies + MSECS(RTL_WATCH_DOG_TIME));
2171 }
2172 void rtl_fwevt_wq_callback(void *data)
2173 {
2174 struct rtl_works *rtlworks =
2175 container_of_dwork_rtl(data, struct rtl_works, fwevt_wq);
2176 struct ieee80211_hw *hw = rtlworks->hw;
2177 struct rtl_priv *rtlpriv = rtl_priv(hw);
2178
2179 rtlpriv->cfg->ops->c2h_command_handle(hw);
2180 }
2181
2182 void rtl_c2hcmd_enqueue(struct ieee80211_hw *hw, u8 tag, u8 len, u8 *val)
2183 {
2184 struct rtl_priv *rtlpriv = rtl_priv(hw);
2185 unsigned long flags;
2186 struct rtl_c2hcmd *c2hcmd;
2187
2188 c2hcmd = kmalloc(sizeof(*c2hcmd),
2189 in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
2190
2191 if (!c2hcmd)
2192 goto label_err;
2193
2194 c2hcmd->val = kmalloc(len,
2195 in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
2196
2197 if (!c2hcmd->val)
2198 goto label_err2;
2199
2200 /* fill data */
2201 c2hcmd->tag = tag;
2202 c2hcmd->len = len;
2203 memcpy(c2hcmd->val, val, len);
2204
2205 /* enqueue */
2206 spin_lock_irqsave(&rtlpriv->locks.c2hcmd_lock, flags);
2207
2208 list_add_tail(&c2hcmd->list, &rtlpriv->c2hcmd_list);
2209
2210 spin_unlock_irqrestore(&rtlpriv->locks.c2hcmd_lock, flags);
2211
2212 /* wake up wq */
2213 queue_delayed_work(rtlpriv->works.rtl_wq, &rtlpriv->works.c2hcmd_wq, 0);
2214
2215 return;
2216
2217 label_err2:
2218 kfree(c2hcmd);
2219
2220 label_err:
2221 RT_TRACE(rtlpriv, COMP_CMD, DBG_WARNING,
2222 "C2H cmd enqueue fail.\n");
2223 }
2224 EXPORT_SYMBOL(rtl_c2hcmd_enqueue);
2225
2226 void rtl_c2hcmd_launcher(struct ieee80211_hw *hw, int exec)
2227 {
2228 struct rtl_priv *rtlpriv = rtl_priv(hw);
2229 unsigned long flags;
2230 struct rtl_c2hcmd *c2hcmd;
2231 int i;
2232
2233 for (i = 0; i < 200; i++) {
2234 /* dequeue a task */
2235 spin_lock_irqsave(&rtlpriv->locks.c2hcmd_lock, flags);
2236
2237 c2hcmd = list_first_entry_or_null(&rtlpriv->c2hcmd_list,
2238 struct rtl_c2hcmd, list);
2239
2240 if (c2hcmd)
2241 list_del(&c2hcmd->list);
2242
2243 spin_unlock_irqrestore(&rtlpriv->locks.c2hcmd_lock, flags);
2244
2245 /* do it */
2246 if (!c2hcmd)
2247 break;
2248
2249 if (rtlpriv->cfg->ops->c2h_content_parsing && exec)
2250 rtlpriv->cfg->ops->c2h_content_parsing(hw,
2251 c2hcmd->tag, c2hcmd->len, c2hcmd->val);
2252
2253 /* free */
2254 kfree(c2hcmd->val);
2255
2256 kfree(c2hcmd);
2257 }
2258 }
2259
2260 void rtl_c2hcmd_wq_callback(void *data)
2261 {
2262 struct rtl_works *rtlworks = container_of_dwork_rtl(data,
2263 struct rtl_works,
2264 c2hcmd_wq);
2265 struct ieee80211_hw *hw = rtlworks->hw;
2266
2267 rtl_c2hcmd_launcher(hw, 1);
2268 }
2269
2270 void rtl_easy_concurrent_retrytimer_callback(struct timer_list *t)
2271 {
2272 struct rtl_priv *rtlpriv =
2273 from_timer(rtlpriv, t, works.dualmac_easyconcurrent_retrytimer);
2274 struct ieee80211_hw *hw = rtlpriv->hw;
2275 struct rtl_priv *buddy_priv = rtlpriv->buddy_priv;
2276
2277 if (buddy_priv == NULL)
2278 return;
2279
2280 rtlpriv->cfg->ops->dualmac_easy_concurrent(hw);
2281 }
2282 /*********************************************************
2283 *
2284 * frame process functions
2285 *
2286 *********************************************************/
2287 u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie)
2288 {
2289 struct ieee80211_mgmt *mgmt = (void *)data;
2290 u8 *pos, *end;
2291
2292 pos = (u8 *)mgmt->u.beacon.variable;
2293 end = data + len;
2294 while (pos < end) {
2295 if (pos + 2 + pos[1] > end)
2296 return NULL;
2297
2298 if (pos[0] == ie)
2299 return pos;
2300
2301 pos += 2 + pos[1];
2302 }
2303 return NULL;
2304 }
2305
2306 /* when we use 2 rx ants we send IEEE80211_SMPS_OFF */
2307 /* when we use 1 rx ant we send IEEE80211_SMPS_STATIC */
2308 static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw,
2309 enum ieee80211_smps_mode smps,
2310 u8 *da, u8 *bssid)
2311 {
2312 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
2313 struct sk_buff *skb;
2314 struct ieee80211_mgmt *action_frame;
2315
2316 /* 27 = header + category + action + smps mode */
2317 skb = dev_alloc_skb(27 + hw->extra_tx_headroom);
2318 if (!skb)
2319 return NULL;
2320
2321 skb_reserve(skb, hw->extra_tx_headroom);
2322 action_frame = skb_put_zero(skb, 27);
2323 memcpy(action_frame->da, da, ETH_ALEN);
2324 memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN);
2325 memcpy(action_frame->bssid, bssid, ETH_ALEN);
2326 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2327 IEEE80211_STYPE_ACTION);
2328 action_frame->u.action.category = WLAN_CATEGORY_HT;
2329 action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS;
2330 switch (smps) {
2331 case IEEE80211_SMPS_AUTOMATIC:/* 0 */
2332 case IEEE80211_SMPS_NUM_MODES:/* 4 */
2333 WARN_ON(1);
2334 /* fall through */
2335 case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/
2336 action_frame->u.action.u.ht_smps.smps_control =
2337 WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */
2338 break;
2339 case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/
2340 action_frame->u.action.u.ht_smps.smps_control =
2341 WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */
2342 break;
2343 case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/
2344 action_frame->u.action.u.ht_smps.smps_control =
2345 WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */
2346 break;
2347 }
2348
2349 return skb;
2350 }
2351
2352 int rtl_send_smps_action(struct ieee80211_hw *hw,
2353 struct ieee80211_sta *sta,
2354 enum ieee80211_smps_mode smps)
2355 {
2356 struct rtl_priv *rtlpriv = rtl_priv(hw);
2357 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
2358 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
2359 struct sk_buff *skb = NULL;
2360 struct rtl_tcb_desc tcb_desc;
2361 u8 bssid[ETH_ALEN] = {0};
2362
2363 memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
2364
2365 if (rtlpriv->mac80211.act_scanning)
2366 goto err_free;
2367
2368 if (!sta)
2369 goto err_free;
2370
2371 if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
2372 goto err_free;
2373
2374 if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
2375 goto err_free;
2376
2377 if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP)
2378 memcpy(bssid, rtlpriv->efuse.dev_addr, ETH_ALEN);
2379 else
2380 memcpy(bssid, rtlpriv->mac80211.bssid, ETH_ALEN);
2381
2382 skb = rtl_make_smps_action(hw, smps, sta->addr, bssid);
2383 /* this is a type = mgmt * stype = action frame */
2384 if (skb) {
2385 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
2386 struct rtl_sta_info *sta_entry =
2387 (struct rtl_sta_info *) sta->drv_priv;
2388 sta_entry->mimo_ps = smps;
2389 /* rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0, true); */
2390
2391 info->control.rates[0].idx = 0;
2392 info->band = hw->conf.chandef.chan->band;
2393 rtlpriv->intf_ops->adapter_tx(hw, sta, skb, &tcb_desc);
2394 }
2395 return 1;
2396
2397 err_free:
2398 return 0;
2399 }
2400 EXPORT_SYMBOL(rtl_send_smps_action);
2401
2402 void rtl_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation)
2403 {
2404 struct rtl_priv *rtlpriv = rtl_priv(hw);
2405 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
2406 enum io_type iotype;
2407
2408 if (!is_hal_stop(rtlhal)) {
2409 switch (operation) {
2410 case SCAN_OPT_BACKUP:
2411 iotype = IO_CMD_PAUSE_DM_BY_SCAN;
2412 rtlpriv->cfg->ops->set_hw_reg(hw,
2413 HW_VAR_IO_CMD,
2414 (u8 *)&iotype);
2415 break;
2416 case SCAN_OPT_RESTORE:
2417 iotype = IO_CMD_RESUME_DM_BY_SCAN;
2418 rtlpriv->cfg->ops->set_hw_reg(hw,
2419 HW_VAR_IO_CMD,
2420 (u8 *)&iotype);
2421 break;
2422 default:
2423 pr_err("Unknown Scan Backup operation.\n");
2424 break;
2425 }
2426 }
2427 }
2428 EXPORT_SYMBOL(rtl_phy_scan_operation_backup);
2429
2430 /* because mac80211 have issues when can receive del ba
2431 * so here we just make a fake del_ba if we receive a ba_req
2432 * but rx_agg was opened to let mac80211 release some ba
2433 * related resources, so please this del_ba for tx
2434 */
2435 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw,
2436 u8 *sa, u8 *bssid, u16 tid)
2437 {
2438 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
2439 struct sk_buff *skb;
2440 struct ieee80211_mgmt *action_frame;
2441 u16 params;
2442
2443 /* 27 = header + category + action + smps mode */
2444 skb = dev_alloc_skb(34 + hw->extra_tx_headroom);
2445 if (!skb)
2446 return NULL;
2447
2448 skb_reserve(skb, hw->extra_tx_headroom);
2449 action_frame = skb_put_zero(skb, 34);
2450 memcpy(action_frame->sa, sa, ETH_ALEN);
2451 memcpy(action_frame->da, rtlefuse->dev_addr, ETH_ALEN);
2452 memcpy(action_frame->bssid, bssid, ETH_ALEN);
2453 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2454 IEEE80211_STYPE_ACTION);
2455 action_frame->u.action.category = WLAN_CATEGORY_BACK;
2456 action_frame->u.action.u.delba.action_code = WLAN_ACTION_DELBA;
2457 params = (u16)(1 << 11); /* bit 11 initiator */
2458 params |= (u16)(tid << 12); /* bit 15:12 TID number */
2459
2460 action_frame->u.action.u.delba.params = cpu_to_le16(params);
2461 action_frame->u.action.u.delba.reason_code =
2462 cpu_to_le16(WLAN_REASON_QSTA_TIMEOUT);
2463
2464 return skb;
2465 }
2466
2467 /*********************************************************
2468 *
2469 * IOT functions
2470 *
2471 *********************************************************/
2472 static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw,
2473 struct octet_string vendor_ie)
2474 {
2475 struct rtl_priv *rtlpriv = rtl_priv(hw);
2476 bool matched = false;
2477 static u8 athcap_1[] = { 0x00, 0x03, 0x7F };
2478 static u8 athcap_2[] = { 0x00, 0x13, 0x74 };
2479 static u8 broadcap_1[] = { 0x00, 0x10, 0x18 };
2480 static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 };
2481 static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 };
2482 static u8 racap[] = { 0x00, 0x0c, 0x43 };
2483 static u8 ciscocap[] = { 0x00, 0x40, 0x96 };
2484 static u8 marvcap[] = { 0x00, 0x50, 0x43 };
2485
2486 if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 ||
2487 memcmp(vendor_ie.octet, athcap_2, 3) == 0) {
2488 rtlpriv->mac80211.vendor = PEER_ATH;
2489 matched = true;
2490 } else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 ||
2491 memcmp(vendor_ie.octet, broadcap_2, 3) == 0 ||
2492 memcmp(vendor_ie.octet, broadcap_3, 3) == 0) {
2493 rtlpriv->mac80211.vendor = PEER_BROAD;
2494 matched = true;
2495 } else if (memcmp(vendor_ie.octet, racap, 3) == 0) {
2496 rtlpriv->mac80211.vendor = PEER_RAL;
2497 matched = true;
2498 } else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) {
2499 rtlpriv->mac80211.vendor = PEER_CISCO;
2500 matched = true;
2501 } else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) {
2502 rtlpriv->mac80211.vendor = PEER_MARV;
2503 matched = true;
2504 }
2505
2506 return matched;
2507 }
2508
2509 static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data,
2510 unsigned int len)
2511 {
2512 struct ieee80211_mgmt *mgmt = (void *)data;
2513 struct octet_string vendor_ie;
2514 u8 *pos, *end;
2515
2516 pos = (u8 *)mgmt->u.beacon.variable;
2517 end = data + len;
2518 while (pos < end) {
2519 if (pos[0] == 221) {
2520 vendor_ie.length = pos[1];
2521 vendor_ie.octet = &pos[2];
2522 if (rtl_chk_vendor_ouisub(hw, vendor_ie))
2523 return true;
2524 }
2525
2526 if (pos + 2 + pos[1] > end)
2527 return false;
2528
2529 pos += 2 + pos[1];
2530 }
2531 return false;
2532 }
2533
2534 void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len)
2535 {
2536 struct rtl_priv *rtlpriv = rtl_priv(hw);
2537 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
2538 struct ieee80211_hdr *hdr = (void *)data;
2539 u32 vendor = PEER_UNKNOWN;
2540
2541 static u8 ap3_1[3] = { 0x00, 0x14, 0xbf };
2542 static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 };
2543 static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e };
2544 static u8 ap4_1[3] = { 0x00, 0x90, 0xcc };
2545 static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e };
2546 static u8 ap4_3[3] = { 0x00, 0x18, 0x02 };
2547 static u8 ap4_4[3] = { 0x00, 0x17, 0x3f };
2548 static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf };
2549 static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 };
2550 static u8 ap5_2[3] = { 0x00, 0x21, 0x91 };
2551 static u8 ap5_3[3] = { 0x00, 0x24, 0x01 };
2552 static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 };
2553 static u8 ap5_5[3] = { 0x00, 0x17, 0x9A };
2554 static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 };
2555 static u8 ap6_1[3] = { 0x00, 0x17, 0x94 };
2556 static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 };
2557
2558 if (mac->opmode != NL80211_IFTYPE_STATION)
2559 return;
2560
2561 if (mac->link_state == MAC80211_NOLINK) {
2562 mac->vendor = PEER_UNKNOWN;
2563 return;
2564 }
2565
2566 if (mac->cnt_after_linked > 2)
2567 return;
2568
2569 /* check if this really is a beacon */
2570 if (!ieee80211_is_beacon(hdr->frame_control))
2571 return;
2572
2573 /* min. beacon length + FCS_LEN */
2574 if (len <= 40 + FCS_LEN)
2575 return;
2576
2577 /* and only beacons from the associated BSSID, please */
2578 if (!ether_addr_equal_64bits(hdr->addr3, rtlpriv->mac80211.bssid))
2579 return;
2580
2581 if (rtl_find_221_ie(hw, data, len))
2582 vendor = mac->vendor;
2583
2584 if ((memcmp(mac->bssid, ap5_1, 3) == 0) ||
2585 (memcmp(mac->bssid, ap5_2, 3) == 0) ||
2586 (memcmp(mac->bssid, ap5_3, 3) == 0) ||
2587 (memcmp(mac->bssid, ap5_4, 3) == 0) ||
2588 (memcmp(mac->bssid, ap5_5, 3) == 0) ||
2589 (memcmp(mac->bssid, ap5_6, 3) == 0) ||
2590 vendor == PEER_ATH) {
2591 vendor = PEER_ATH;
2592 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ath find\n");
2593 } else if ((memcmp(mac->bssid, ap4_4, 3) == 0) ||
2594 (memcmp(mac->bssid, ap4_5, 3) == 0) ||
2595 (memcmp(mac->bssid, ap4_1, 3) == 0) ||
2596 (memcmp(mac->bssid, ap4_2, 3) == 0) ||
2597 (memcmp(mac->bssid, ap4_3, 3) == 0) ||
2598 vendor == PEER_RAL) {
2599 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ral find\n");
2600 vendor = PEER_RAL;
2601 } else if (memcmp(mac->bssid, ap6_1, 3) == 0 ||
2602 vendor == PEER_CISCO) {
2603 vendor = PEER_CISCO;
2604 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>cisco find\n");
2605 } else if ((memcmp(mac->bssid, ap3_1, 3) == 0) ||
2606 (memcmp(mac->bssid, ap3_2, 3) == 0) ||
2607 (memcmp(mac->bssid, ap3_3, 3) == 0) ||
2608 vendor == PEER_BROAD) {
2609 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>broad find\n");
2610 vendor = PEER_BROAD;
2611 } else if (memcmp(mac->bssid, ap7_1, 3) == 0 ||
2612 vendor == PEER_MARV) {
2613 vendor = PEER_MARV;
2614 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>marv find\n");
2615 }
2616
2617 mac->vendor = vendor;
2618 }
2619 EXPORT_SYMBOL_GPL(rtl_recognize_peer);
2620
2621 MODULE_AUTHOR("lizhaoming <chaoming_li@realsil.com.cn>");
2622 MODULE_AUTHOR("Realtek WlanFAE <wlanfae@realtek.com>");
2623 MODULE_AUTHOR("Larry Finger <Larry.FInger@lwfinger.net>");
2624 MODULE_LICENSE("GPL");
2625 MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");
2626
2627 struct rtl_global_var rtl_global_var = {};
2628 EXPORT_SYMBOL_GPL(rtl_global_var);
2629
2630 static int __init rtl_core_module_init(void)
2631 {
2632 if (rtl_rate_control_register())
2633 pr_err("rtl: Unable to register rtl_rc, use default RC !!\n");
2634
2635 /* add debugfs */
2636 rtl_debugfs_add_topdir();
2637
2638 /* init some global vars */
2639 INIT_LIST_HEAD(&rtl_global_var.glb_priv_list);
2640 spin_lock_init(&rtl_global_var.glb_list_lock);
2641
2642 return 0;
2643 }
2644
2645 static void __exit rtl_core_module_exit(void)
2646 {
2647 /*RC*/
2648 rtl_rate_control_unregister();
2649
2650 /* remove debugfs */
2651 rtl_debugfs_remove_topdir();
2652 }
2653
2654 module_init(rtl_core_module_init);
2655 module_exit(rtl_core_module_exit);
CRIS linux kernel tree