1 /******************************************************************************
2 *
3 * Copyright(c) 2009-2012 Realtek Corporation.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * The full GNU General Public License is included in this distribution in the
15 * file called LICENSE.
16 *
17 * Contact Information:
18 * wlanfae <wlanfae@realtek.com>
19 * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
20 * Hsinchu 300, Taiwan.
21 *
22 * Larry Finger <Larry.Finger@lwfinger.net>
23 *
24 *****************************************************************************/
25
26 #include "wifi.h"
27 #include "rc.h"
28 #include "base.h"
29 #include "efuse.h"
30 #include "cam.h"
31 #include "ps.h"
32 #include "regd.h"
33 #include "pci.h"
34 #include <linux/ip.h>
35 #include <linux/module.h>
36 #include <linux/udp.h>
37
38 /*
39 *NOTICE!!!: This file will be very big, we should
40 *keep it clear under following roles:
41 *
42 *This file include following parts, so, if you add new
43 *functions into this file, please check which part it
44 *should includes. or check if you should add new part
45 *for this file:
46 *
47 *1) mac80211 init functions
48 *2) tx information functions
49 *3) functions called by core.c
50 *4) wq & timer callback functions
51 *5) frame process functions
52 *6) IOT functions
53 *7) sysfs functions
54 *8) vif functions
55 *9) ...
56 */
57
58 /*********************************************************
59 *
60 * mac80211 init functions
61 *
62 *********************************************************/
63 static struct ieee80211_channel rtl_channeltable_2g[] = {
64 {.center_freq = 2412, .hw_value = 1,},
65 {.center_freq = 2417, .hw_value = 2,},
66 {.center_freq = 2422, .hw_value = 3,},
67 {.center_freq = 2427, .hw_value = 4,},
68 {.center_freq = 2432, .hw_value = 5,},
69 {.center_freq = 2437, .hw_value = 6,},
70 {.center_freq = 2442, .hw_value = 7,},
71 {.center_freq = 2447, .hw_value = 8,},
72 {.center_freq = 2452, .hw_value = 9,},
73 {.center_freq = 2457, .hw_value = 10,},
74 {.center_freq = 2462, .hw_value = 11,},
75 {.center_freq = 2467, .hw_value = 12,},
76 {.center_freq = 2472, .hw_value = 13,},
77 {.center_freq = 2484, .hw_value = 14,},
78 };
79
80 static struct ieee80211_channel rtl_channeltable_5g[] = {
81 {.center_freq = 5180, .hw_value = 36,},
82 {.center_freq = 5200, .hw_value = 40,},
83 {.center_freq = 5220, .hw_value = 44,},
84 {.center_freq = 5240, .hw_value = 48,},
85 {.center_freq = 5260, .hw_value = 52,},
86 {.center_freq = 5280, .hw_value = 56,},
87 {.center_freq = 5300, .hw_value = 60,},
88 {.center_freq = 5320, .hw_value = 64,},
89 {.center_freq = 5500, .hw_value = 100,},
90 {.center_freq = 5520, .hw_value = 104,},
91 {.center_freq = 5540, .hw_value = 108,},
92 {.center_freq = 5560, .hw_value = 112,},
93 {.center_freq = 5580, .hw_value = 116,},
94 {.center_freq = 5600, .hw_value = 120,},
95 {.center_freq = 5620, .hw_value = 124,},
96 {.center_freq = 5640, .hw_value = 128,},
97 {.center_freq = 5660, .hw_value = 132,},
98 {.center_freq = 5680, .hw_value = 136,},
99 {.center_freq = 5700, .hw_value = 140,},
100 {.center_freq = 5745, .hw_value = 149,},
101 {.center_freq = 5765, .hw_value = 153,},
102 {.center_freq = 5785, .hw_value = 157,},
103 {.center_freq = 5805, .hw_value = 161,},
104 {.center_freq = 5825, .hw_value = 165,},
105 };
106
107 static struct ieee80211_rate rtl_ratetable_2g[] = {
108 {.bitrate = 10, .hw_value = 0x00,},
109 {.bitrate = 20, .hw_value = 0x01,},
110 {.bitrate = 55, .hw_value = 0x02,},
111 {.bitrate = 110, .hw_value = 0x03,},
112 {.bitrate = 60, .hw_value = 0x04,},
113 {.bitrate = 90, .hw_value = 0x05,},
114 {.bitrate = 120, .hw_value = 0x06,},
115 {.bitrate = 180, .hw_value = 0x07,},
116 {.bitrate = 240, .hw_value = 0x08,},
117 {.bitrate = 360, .hw_value = 0x09,},
118 {.bitrate = 480, .hw_value = 0x0a,},
119 {.bitrate = 540, .hw_value = 0x0b,},
120 };
121
122 static struct ieee80211_rate rtl_ratetable_5g[] = {
123 {.bitrate = 60, .hw_value = 0x04,},
124 {.bitrate = 90, .hw_value = 0x05,},
125 {.bitrate = 120, .hw_value = 0x06,},
126 {.bitrate = 180, .hw_value = 0x07,},
127 {.bitrate = 240, .hw_value = 0x08,},
128 {.bitrate = 360, .hw_value = 0x09,},
129 {.bitrate = 480, .hw_value = 0x0a,},
130 {.bitrate = 540, .hw_value = 0x0b,},
131 };
132
133 static const struct ieee80211_supported_band rtl_band_2ghz = {
134 .band = IEEE80211_BAND_2GHZ,
135
136 .channels = rtl_channeltable_2g,
137 .n_channels = ARRAY_SIZE(rtl_channeltable_2g),
138
139 .bitrates = rtl_ratetable_2g,
140 .n_bitrates = ARRAY_SIZE(rtl_ratetable_2g),
141
142 .ht_cap = {0},
143 };
144
145 static struct ieee80211_supported_band rtl_band_5ghz = {
146 .band = IEEE80211_BAND_5GHZ,
147
148 .channels = rtl_channeltable_5g,
149 .n_channels = ARRAY_SIZE(rtl_channeltable_5g),
150
151 .bitrates = rtl_ratetable_5g,
152 .n_bitrates = ARRAY_SIZE(rtl_ratetable_5g),
153
154 .ht_cap = {0},
155 };
156
157 static const u8 tid_to_ac[] = {
158 2, /* IEEE80211_AC_BE */
159 3, /* IEEE80211_AC_BK */
160 3, /* IEEE80211_AC_BK */
161 2, /* IEEE80211_AC_BE */
162 1, /* IEEE80211_AC_VI */
163 1, /* IEEE80211_AC_VI */
164 0, /* IEEE80211_AC_VO */
165 0, /* IEEE80211_AC_VO */
166 };
167
rtl_tid_to_ac(u8 tid)168 u8 rtl_tid_to_ac(u8 tid)
169 {
170 return tid_to_ac[tid];
171 }
172 EXPORT_SYMBOL_GPL(rtl_tid_to_ac);
173
_rtl_init_hw_ht_capab(struct ieee80211_hw * hw,struct ieee80211_sta_ht_cap * ht_cap)174 static void _rtl_init_hw_ht_capab(struct ieee80211_hw *hw,
175 struct ieee80211_sta_ht_cap *ht_cap)
176 {
177 struct rtl_priv *rtlpriv = rtl_priv(hw);
178 struct rtl_phy *rtlphy = &(rtlpriv->phy);
179
180 ht_cap->ht_supported = true;
181 ht_cap->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
182 IEEE80211_HT_CAP_SGI_40 |
183 IEEE80211_HT_CAP_SGI_20 |
184 IEEE80211_HT_CAP_DSSSCCK40 | IEEE80211_HT_CAP_MAX_AMSDU;
185
186 if (rtlpriv->rtlhal.disable_amsdu_8k)
187 ht_cap->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
188
189 /*
190 *Maximum length of AMPDU that the STA can receive.
191 *Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
192 */
193 ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
194
195 /*Minimum MPDU start spacing , */
196 ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
197
198 ht_cap->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
199
200 /*hw->wiphy->bands[IEEE80211_BAND_2GHZ]
201 *base on ant_num
202 *rx_mask: RX mask
203 *if rx_ant = 1 rx_mask[0]= 0xff;==>MCS0-MCS7
204 *if rx_ant = 2 rx_mask[1]= 0xff;==>MCS8-MCS15
205 *if rx_ant >= 3 rx_mask[2]= 0xff;
206 *if BW_40 rx_mask[4]= 0x01;
207 *highest supported RX rate
208 */
209 if (rtlpriv->dm.supp_phymode_switch) {
210 RT_TRACE(rtlpriv, COMP_INIT, DBG_EMERG,
211 "Support phy mode switch\n");
212
213 ht_cap->mcs.rx_mask[0] = 0xFF;
214 ht_cap->mcs.rx_mask[1] = 0xFF;
215 ht_cap->mcs.rx_mask[4] = 0x01;
216
217 ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
218 } else {
219 if (get_rf_type(rtlphy) == RF_1T2R ||
220 get_rf_type(rtlphy) == RF_2T2R) {
221 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
222 "1T2R or 2T2R\n");
223 ht_cap->mcs.rx_mask[0] = 0xFF;
224 ht_cap->mcs.rx_mask[1] = 0xFF;
225 ht_cap->mcs.rx_mask[4] = 0x01;
226
227 ht_cap->mcs.rx_highest =
228 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
229 } else if (get_rf_type(rtlphy) == RF_1T1R) {
230 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "1T1R\n");
231
232 ht_cap->mcs.rx_mask[0] = 0xFF;
233 ht_cap->mcs.rx_mask[1] = 0x00;
234 ht_cap->mcs.rx_mask[4] = 0x01;
235
236 ht_cap->mcs.rx_highest =
237 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS7);
238 }
239 }
240 }
241
_rtl_init_hw_vht_capab(struct ieee80211_hw * hw,struct ieee80211_sta_vht_cap * vht_cap)242 static void _rtl_init_hw_vht_capab(struct ieee80211_hw *hw,
243 struct ieee80211_sta_vht_cap *vht_cap)
244 {
245 struct rtl_priv *rtlpriv = rtl_priv(hw);
246 struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
247
248 if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE) {
249 u16 mcs_map;
250
251 vht_cap->vht_supported = true;
252 vht_cap->cap =
253 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895 |
254 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 |
255 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
256 IEEE80211_VHT_CAP_SHORT_GI_80 |
257 IEEE80211_VHT_CAP_TXSTBC |
258 IEEE80211_VHT_CAP_RXSTBC_1 |
259 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
260 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
261 IEEE80211_VHT_CAP_HTC_VHT |
262 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
263 IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
264 IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN |
265 0;
266
267 mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
268 IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
269 IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
270 IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
271 IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
272 IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
273 IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
274 IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;
275
276 vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
277 vht_cap->vht_mcs.rx_highest =
278 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9);
279 vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
280 vht_cap->vht_mcs.tx_highest =
281 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9);
282 } else if (rtlhal->hw_type == HARDWARE_TYPE_RTL8821AE) {
283 u16 mcs_map;
284
285 vht_cap->vht_supported = true;
286 vht_cap->cap =
287 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895 |
288 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 |
289 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
290 IEEE80211_VHT_CAP_SHORT_GI_80 |
291 IEEE80211_VHT_CAP_TXSTBC |
292 IEEE80211_VHT_CAP_RXSTBC_1 |
293 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
294 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
295 IEEE80211_VHT_CAP_HTC_VHT |
296 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
297 IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
298 IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN |
299 0;
300
301 mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
302 IEEE80211_VHT_MCS_NOT_SUPPORTED << 2 |
303 IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
304 IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
305 IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
306 IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
307 IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
308 IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;
309
310 vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
311 vht_cap->vht_mcs.rx_highest =
312 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9);
313 vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
314 vht_cap->vht_mcs.tx_highest =
315 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9);
316 }
317 }
318
_rtl_init_mac80211(struct ieee80211_hw * hw)319 static void _rtl_init_mac80211(struct ieee80211_hw *hw)
320 {
321 struct rtl_priv *rtlpriv = rtl_priv(hw);
322 struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
323 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
324 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
325 struct ieee80211_supported_band *sband;
326
327 if (rtlhal->macphymode == SINGLEMAC_SINGLEPHY &&
328 rtlhal->bandset == BAND_ON_BOTH) {
329 /* 1: 2.4 G bands */
330 /* <1> use mac->bands as mem for hw->wiphy->bands */
331 sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]);
332
333 /* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ]
334 * to default value(1T1R) */
335 memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]), &rtl_band_2ghz,
336 sizeof(struct ieee80211_supported_band));
337
338 /* <3> init ht cap base on ant_num */
339 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
340
341 /* <4> set mac->sband to wiphy->sband */
342 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
343
344 /* 2: 5 G bands */
345 /* <1> use mac->bands as mem for hw->wiphy->bands */
346 sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]);
347
348 /* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ]
349 * to default value(1T1R) */
350 memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]), &rtl_band_5ghz,
351 sizeof(struct ieee80211_supported_band));
352
353 /* <3> init ht cap base on ant_num */
354 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
355
356 _rtl_init_hw_vht_capab(hw, &sband->vht_cap);
357 /* <4> set mac->sband to wiphy->sband */
358 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
359 } else {
360 if (rtlhal->current_bandtype == BAND_ON_2_4G) {
361 /* <1> use mac->bands as mem for hw->wiphy->bands */
362 sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]);
363
364 /* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ]
365 * to default value(1T1R) */
366 memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]),
367 &rtl_band_2ghz,
368 sizeof(struct ieee80211_supported_band));
369
370 /* <3> init ht cap base on ant_num */
371 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
372
373 /* <4> set mac->sband to wiphy->sband */
374 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
375 } else if (rtlhal->current_bandtype == BAND_ON_5G) {
376 /* <1> use mac->bands as mem for hw->wiphy->bands */
377 sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]);
378
379 /* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ]
380 * to default value(1T1R) */
381 memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]),
382 &rtl_band_5ghz,
383 sizeof(struct ieee80211_supported_band));
384
385 /* <3> init ht cap base on ant_num */
386 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
387
388 _rtl_init_hw_vht_capab(hw, &sband->vht_cap);
389 /* <4> set mac->sband to wiphy->sband */
390 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
391 } else {
392 RT_TRACE(rtlpriv, COMP_INIT, DBG_EMERG, "Err BAND %d\n",
393 rtlhal->current_bandtype);
394 }
395 }
396 /* <5> set hw caps */
397 ieee80211_hw_set(hw, SIGNAL_DBM);
398 ieee80211_hw_set(hw, RX_INCLUDES_FCS);
399 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
400 ieee80211_hw_set(hw, CONNECTION_MONITOR);
401 ieee80211_hw_set(hw, MFP_CAPABLE);
402 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
403
404 /* swlps or hwlps has been set in diff chip in init_sw_vars */
405 if (rtlpriv->psc.swctrl_lps) {
406 ieee80211_hw_set(hw, SUPPORTS_PS);
407 ieee80211_hw_set(hw, PS_NULLFUNC_STACK);
408 }
409 hw->wiphy->interface_modes =
410 BIT(NL80211_IFTYPE_AP) |
411 BIT(NL80211_IFTYPE_STATION) |
412 BIT(NL80211_IFTYPE_ADHOC) |
413 BIT(NL80211_IFTYPE_MESH_POINT) |
414 BIT(NL80211_IFTYPE_P2P_CLIENT) |
415 BIT(NL80211_IFTYPE_P2P_GO);
416 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
417
418 hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
419
420 hw->wiphy->rts_threshold = 2347;
421
422 hw->queues = AC_MAX;
423 hw->extra_tx_headroom = RTL_TX_HEADER_SIZE;
424
425 /* TODO: Correct this value for our hw */
426 /* TODO: define these hard code value */
427 hw->max_listen_interval = 10;
428 hw->max_rate_tries = 4;
429 /* hw->max_rates = 1; */
430 hw->sta_data_size = sizeof(struct rtl_sta_info);
431
432 /* wowlan is not supported by kernel if CONFIG_PM is not defined */
433 #ifdef CONFIG_PM
434 if (rtlpriv->psc.wo_wlan_mode) {
435 if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_MAGIC_PACKET)
436 rtlpriv->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT;
437 if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_PATTERN_MATCH) {
438 rtlpriv->wowlan.n_patterns =
439 MAX_SUPPORT_WOL_PATTERN_NUM;
440 rtlpriv->wowlan.pattern_min_len = MIN_WOL_PATTERN_SIZE;
441 rtlpriv->wowlan.pattern_max_len = MAX_WOL_PATTERN_SIZE;
442 }
443 hw->wiphy->wowlan = &rtlpriv->wowlan;
444 }
445 #endif
446
447 /* <6> mac address */
448 if (is_valid_ether_addr(rtlefuse->dev_addr)) {
449 SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr);
450 } else {
451 u8 rtlmac1[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 };
452 get_random_bytes((rtlmac1 + (ETH_ALEN - 1)), 1);
453 SET_IEEE80211_PERM_ADDR(hw, rtlmac1);
454 }
455 }
456
_rtl_init_deferred_work(struct ieee80211_hw * hw)457 static int _rtl_init_deferred_work(struct ieee80211_hw *hw)
458 {
459 struct rtl_priv *rtlpriv = rtl_priv(hw);
460 struct workqueue_struct *wq;
461
462 wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name);
463 if (!wq)
464 return -ENOMEM;
465
466 /* <1> timer */
467 setup_timer(&rtlpriv->works.watchdog_timer,
468 rtl_watch_dog_timer_callback, (unsigned long)hw);
469 setup_timer(&rtlpriv->works.dualmac_easyconcurrent_retrytimer,
470 rtl_easy_concurrent_retrytimer_callback, (unsigned long)hw);
471 /* <2> work queue */
472 rtlpriv->works.hw = hw;
473 rtlpriv->works.rtl_wq = wq;
474
475 INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
476 (void *)rtl_watchdog_wq_callback);
477 INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,
478 (void *)rtl_ips_nic_off_wq_callback);
479 INIT_DELAYED_WORK(&rtlpriv->works.ps_work,
480 (void *)rtl_swlps_wq_callback);
481 INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq,
482 (void *)rtl_swlps_rfon_wq_callback);
483 INIT_DELAYED_WORK(&rtlpriv->works.fwevt_wq,
484 (void *)rtl_fwevt_wq_callback);
485 return 0;
486 }
487
rtl_deinit_deferred_work(struct ieee80211_hw * hw)488 void rtl_deinit_deferred_work(struct ieee80211_hw *hw)
489 {
490 struct rtl_priv *rtlpriv = rtl_priv(hw);
491
492 del_timer_sync(&rtlpriv->works.watchdog_timer);
493
494 cancel_delayed_work(&rtlpriv->works.watchdog_wq);
495 cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq);
496 cancel_delayed_work(&rtlpriv->works.ps_work);
497 cancel_delayed_work(&rtlpriv->works.ps_rfon_wq);
498 cancel_delayed_work(&rtlpriv->works.fwevt_wq);
499 }
500 EXPORT_SYMBOL_GPL(rtl_deinit_deferred_work);
501
rtl_init_rfkill(struct ieee80211_hw * hw)502 void rtl_init_rfkill(struct ieee80211_hw *hw)
503 {
504 struct rtl_priv *rtlpriv = rtl_priv(hw);
505
506 bool radio_state;
507 bool blocked;
508 u8 valid = 0;
509
510 /*set init state to on */
511 rtlpriv->rfkill.rfkill_state = true;
512 wiphy_rfkill_set_hw_state(hw->wiphy, 0);
513
514 radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
515
516 if (valid) {
517 pr_info("rtlwifi: wireless switch is %s\n",
518 rtlpriv->rfkill.rfkill_state ? "on" : "off");
519
520 rtlpriv->rfkill.rfkill_state = radio_state;
521
522 blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1;
523 wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
524 }
525
526 wiphy_rfkill_start_polling(hw->wiphy);
527 }
528 EXPORT_SYMBOL(rtl_init_rfkill);
529
rtl_deinit_rfkill(struct ieee80211_hw * hw)530 void rtl_deinit_rfkill(struct ieee80211_hw *hw)
531 {
532 wiphy_rfkill_stop_polling(hw->wiphy);
533 }
534 EXPORT_SYMBOL_GPL(rtl_deinit_rfkill);
535
rtl_init_core(struct ieee80211_hw * hw)536 int rtl_init_core(struct ieee80211_hw *hw)
537 {
538 struct rtl_priv *rtlpriv = rtl_priv(hw);
539 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
540
541 /* <1> init mac80211 */
542 _rtl_init_mac80211(hw);
543 rtlmac->hw = hw;
544
545 /* <2> rate control register */
546 hw->rate_control_algorithm = "rtl_rc";
547
548 /*
549 * <3> init CRDA must come after init
550 * mac80211 hw in _rtl_init_mac80211.
551 */
552 if (rtl_regd_init(hw, rtl_reg_notifier)) {
553 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "REGD init failed\n");
554 return 1;
555 }
556
557 /* <4> locks */
558 mutex_init(&rtlpriv->locks.conf_mutex);
559 spin_lock_init(&rtlpriv->locks.ips_lock);
560 spin_lock_init(&rtlpriv->locks.irq_th_lock);
561 spin_lock_init(&rtlpriv->locks.h2c_lock);
562 spin_lock_init(&rtlpriv->locks.rf_ps_lock);
563 spin_lock_init(&rtlpriv->locks.rf_lock);
564 spin_lock_init(&rtlpriv->locks.waitq_lock);
565 spin_lock_init(&rtlpriv->locks.entry_list_lock);
566 spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock);
567 spin_lock_init(&rtlpriv->locks.check_sendpkt_lock);
568 spin_lock_init(&rtlpriv->locks.fw_ps_lock);
569 spin_lock_init(&rtlpriv->locks.lps_lock);
570 spin_lock_init(&rtlpriv->locks.iqk_lock);
571 /* <5> init list */
572 INIT_LIST_HEAD(&rtlpriv->entry_list);
573
574 rtlmac->link_state = MAC80211_NOLINK;
575
576 /* <6> init deferred work */
577 return _rtl_init_deferred_work(hw);
578 }
579 EXPORT_SYMBOL_GPL(rtl_init_core);
580
rtl_deinit_core(struct ieee80211_hw * hw)581 void rtl_deinit_core(struct ieee80211_hw *hw)
582 {
583 }
584 EXPORT_SYMBOL_GPL(rtl_deinit_core);
585
rtl_init_rx_config(struct ieee80211_hw * hw)586 void rtl_init_rx_config(struct ieee80211_hw *hw)
587 {
588 struct rtl_priv *rtlpriv = rtl_priv(hw);
589 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
590
591 rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf));
592 }
593 EXPORT_SYMBOL_GPL(rtl_init_rx_config);
594
595 /*********************************************************
596 *
597 * tx information functions
598 *
599 *********************************************************/
_rtl_qurey_shortpreamble_mode(struct ieee80211_hw * hw,struct rtl_tcb_desc * tcb_desc,struct ieee80211_tx_info * info)600 static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw,
601 struct rtl_tcb_desc *tcb_desc,
602 struct ieee80211_tx_info *info)
603 {
604 struct rtl_priv *rtlpriv = rtl_priv(hw);
605 u8 rate_flag = info->control.rates[0].flags;
606
607 tcb_desc->use_shortpreamble = false;
608
609 /* 1M can only use Long Preamble. 11B spec */
610 if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M])
611 return;
612 else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
613 tcb_desc->use_shortpreamble = true;
614
615 return;
616 }
617
_rtl_query_shortgi(struct ieee80211_hw * hw,struct ieee80211_sta * sta,struct rtl_tcb_desc * tcb_desc,struct ieee80211_tx_info * info)618 static void _rtl_query_shortgi(struct ieee80211_hw *hw,
619 struct ieee80211_sta *sta,
620 struct rtl_tcb_desc *tcb_desc,
621 struct ieee80211_tx_info *info)
622 {
623 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
624 u8 rate_flag = info->control.rates[0].flags;
625 u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0;
626 u8 sgi_80 = 0, bw_80 = 0;
627 tcb_desc->use_shortgi = false;
628
629 if (sta == NULL)
630 return;
631
632 sgi_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40;
633 sgi_20 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20;
634 sgi_80 = sta->vht_cap.cap & IEEE80211_VHT_CAP_SHORT_GI_80;
635
636 if ((!sta->ht_cap.ht_supported) && (!sta->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->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40;
649 bw_80 = sta->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_txrate_selectmode(struct ieee80211_hw * hw,struct ieee80211_sta * sta,struct rtl_tcb_desc * tcb_desc)695 static void _rtl_txrate_selectmode(struct ieee80211_hw *hw,
696 struct ieee80211_sta *sta,
697 struct rtl_tcb_desc *tcb_desc)
698 {
699 struct rtl_priv *rtlpriv = rtl_priv(hw);
700 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
701 struct rtl_sta_info *sta_entry = NULL;
702 u8 ratr_index = 7;
703
704 if (sta) {
705 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
706 ratr_index = sta_entry->ratr_index;
707 }
708 if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) {
709 if (mac->opmode == NL80211_IFTYPE_STATION) {
710 tcb_desc->ratr_index = 0;
711 } else if (mac->opmode == NL80211_IFTYPE_ADHOC ||
712 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
713 if (tcb_desc->multicast || tcb_desc->broadcast) {
714 tcb_desc->hw_rate =
715 rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M];
716 tcb_desc->use_driver_rate = 1;
717 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
718 } else {
719 tcb_desc->ratr_index = ratr_index;
720 }
721 } else if (mac->opmode == NL80211_IFTYPE_AP) {
722 tcb_desc->ratr_index = ratr_index;
723 }
724 }
725
726 if (rtlpriv->dm.useramask) {
727 tcb_desc->ratr_index = ratr_index;
728 /* TODO we will differentiate adhoc and station future */
729 if (mac->opmode == NL80211_IFTYPE_STATION ||
730 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
731 tcb_desc->mac_id = 0;
732
733 if (mac->mode == WIRELESS_MODE_AC_5G)
734 tcb_desc->ratr_index =
735 RATR_INX_WIRELESS_AC_5N;
736 else if (mac->mode == WIRELESS_MODE_AC_24G)
737 tcb_desc->ratr_index =
738 RATR_INX_WIRELESS_AC_24N;
739 else if (mac->mode == WIRELESS_MODE_N_24G)
740 tcb_desc->ratr_index = RATR_INX_WIRELESS_NGB;
741 else if (mac->mode == WIRELESS_MODE_N_5G)
742 tcb_desc->ratr_index = RATR_INX_WIRELESS_NG;
743 else if (mac->mode & WIRELESS_MODE_G)
744 tcb_desc->ratr_index = RATR_INX_WIRELESS_GB;
745 else if (mac->mode & WIRELESS_MODE_B)
746 tcb_desc->ratr_index = RATR_INX_WIRELESS_B;
747 else if (mac->mode & WIRELESS_MODE_A)
748 tcb_desc->ratr_index = RATR_INX_WIRELESS_G;
749
750 } else if (mac->opmode == NL80211_IFTYPE_AP ||
751 mac->opmode == NL80211_IFTYPE_ADHOC) {
752 if (NULL != sta) {
753 if (sta->aid > 0)
754 tcb_desc->mac_id = sta->aid + 1;
755 else
756 tcb_desc->mac_id = 1;
757 } else {
758 tcb_desc->mac_id = 0;
759 }
760 }
761 }
762 }
763
_rtl_query_bandwidth_mode(struct ieee80211_hw * hw,struct ieee80211_sta * sta,struct rtl_tcb_desc * tcb_desc)764 static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw,
765 struct ieee80211_sta *sta,
766 struct rtl_tcb_desc *tcb_desc)
767 {
768 struct rtl_priv *rtlpriv = rtl_priv(hw);
769 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
770
771 tcb_desc->packet_bw = false;
772 if (!sta)
773 return;
774 if (mac->opmode == NL80211_IFTYPE_AP ||
775 mac->opmode == NL80211_IFTYPE_ADHOC ||
776 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
777 if (!(sta->ht_cap.ht_supported) ||
778 !(sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))
779 return;
780 } else if (mac->opmode == NL80211_IFTYPE_STATION) {
781 if (!mac->bw_40 || !(sta->ht_cap.ht_supported))
782 return;
783 }
784 if (tcb_desc->multicast || tcb_desc->broadcast)
785 return;
786
787 /*use legency rate, shall use 20MHz */
788 if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M])
789 return;
790
791 tcb_desc->packet_bw = HT_CHANNEL_WIDTH_20_40;
792
793 if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8812AE ||
794 rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8821AE) {
795 if (mac->opmode == NL80211_IFTYPE_AP ||
796 mac->opmode == NL80211_IFTYPE_ADHOC ||
797 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
798 if (!(sta->vht_cap.vht_supported))
799 return;
800 } else if (mac->opmode == NL80211_IFTYPE_STATION) {
801 if (!mac->bw_80 ||
802 !(sta->vht_cap.vht_supported))
803 return;
804 }
805 if (tcb_desc->hw_rate <=
806 rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15])
807 return;
808 tcb_desc->packet_bw = HT_CHANNEL_WIDTH_80;
809 }
810 }
811
_rtl_get_vht_highest_n_rate(struct ieee80211_hw * hw,struct ieee80211_sta * sta)812 static u8 _rtl_get_vht_highest_n_rate(struct ieee80211_hw *hw,
813 struct ieee80211_sta *sta)
814 {
815 struct rtl_priv *rtlpriv = rtl_priv(hw);
816 struct rtl_phy *rtlphy = &(rtlpriv->phy);
817 u8 hw_rate;
818 u16 tx_mcs_map = le16_to_cpu(sta->vht_cap.vht_mcs.tx_mcs_map);
819
820 if ((get_rf_type(rtlphy) == RF_2T2R) &&
821 (tx_mcs_map & 0x000c) != 0x000c) {
822 if ((tx_mcs_map & 0x000c) >> 2 ==
823 IEEE80211_VHT_MCS_SUPPORT_0_7)
824 hw_rate =
825 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS7];
826 else if ((tx_mcs_map & 0x000c) >> 2 ==
827 IEEE80211_VHT_MCS_SUPPORT_0_8)
828 hw_rate =
829 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
830 else
831 hw_rate =
832 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
833 } else {
834 if ((tx_mcs_map & 0x0003) ==
835 IEEE80211_VHT_MCS_SUPPORT_0_7)
836 hw_rate =
837 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS7];
838 else if ((tx_mcs_map & 0x0003) ==
839 IEEE80211_VHT_MCS_SUPPORT_0_8)
840 hw_rate =
841 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
842 else
843 hw_rate =
844 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
845 }
846
847 return hw_rate;
848 }
849
_rtl_get_highest_n_rate(struct ieee80211_hw * hw,struct ieee80211_sta * sta)850 static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw,
851 struct ieee80211_sta *sta)
852 {
853 struct rtl_priv *rtlpriv = rtl_priv(hw);
854 struct rtl_phy *rtlphy = &rtlpriv->phy;
855 u8 hw_rate;
856
857 if ((get_rf_type(rtlphy) == RF_2T2R) &&
858 (sta->ht_cap.mcs.rx_mask[1] != 0))
859 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15];
860 else
861 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7];
862
863 return hw_rate;
864 }
865
866 /* mac80211's rate_idx is like this:
867 *
868 * 2.4G band:rx_status->band == IEEE80211_BAND_2GHZ
869 *
870 * B/G rate:
871 * (rx_status->flag & RX_FLAG_HT) = 0,
872 * DESC_RATE1M-->DESC_RATE54M ==> idx is 0-->11,
873 *
874 * N rate:
875 * (rx_status->flag & RX_FLAG_HT) = 1,
876 * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
877 *
878 * 5G band:rx_status->band == IEEE80211_BAND_5GHZ
879 * A rate:
880 * (rx_status->flag & RX_FLAG_HT) = 0,
881 * DESC_RATE6M-->DESC_RATE54M ==> idx is 0-->7,
882 *
883 * N rate:
884 * (rx_status->flag & RX_FLAG_HT) = 1,
885 * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
886 *
887 * VHT rates:
888 * DESC_RATEVHT1SS_MCS0-->DESC_RATEVHT1SS_MCS9 ==> idx is 0-->9
889 * DESC_RATEVHT2SS_MCS0-->DESC_RATEVHT2SS_MCS9 ==> idx is 0-->9
890 */
rtlwifi_rate_mapping(struct ieee80211_hw * hw,bool isht,bool isvht,u8 desc_rate)891 int rtlwifi_rate_mapping(struct ieee80211_hw *hw, bool isht, bool isvht,
892 u8 desc_rate)
893 {
894 int rate_idx;
895
896 if (isvht) {
897 switch (desc_rate) {
898 case DESC_RATEVHT1SS_MCS0:
899 rate_idx = 0;
900 break;
901 case DESC_RATEVHT1SS_MCS1:
902 rate_idx = 1;
903 break;
904 case DESC_RATEVHT1SS_MCS2:
905 rate_idx = 2;
906 break;
907 case DESC_RATEVHT1SS_MCS3:
908 rate_idx = 3;
909 break;
910 case DESC_RATEVHT1SS_MCS4:
911 rate_idx = 4;
912 break;
913 case DESC_RATEVHT1SS_MCS5:
914 rate_idx = 5;
915 break;
916 case DESC_RATEVHT1SS_MCS6:
917 rate_idx = 6;
918 break;
919 case DESC_RATEVHT1SS_MCS7:
920 rate_idx = 7;
921 break;
922 case DESC_RATEVHT1SS_MCS8:
923 rate_idx = 8;
924 break;
925 case DESC_RATEVHT1SS_MCS9:
926 rate_idx = 9;
927 break;
928 case DESC_RATEVHT2SS_MCS0:
929 rate_idx = 0;
930 break;
931 case DESC_RATEVHT2SS_MCS1:
932 rate_idx = 1;
933 break;
934 case DESC_RATEVHT2SS_MCS2:
935 rate_idx = 2;
936 break;
937 case DESC_RATEVHT2SS_MCS3:
938 rate_idx = 3;
939 break;
940 case DESC_RATEVHT2SS_MCS4:
941 rate_idx = 4;
942 break;
943 case DESC_RATEVHT2SS_MCS5:
944 rate_idx = 5;
945 break;
946 case DESC_RATEVHT2SS_MCS6:
947 rate_idx = 6;
948 break;
949 case DESC_RATEVHT2SS_MCS7:
950 rate_idx = 7;
951 break;
952 case DESC_RATEVHT2SS_MCS8:
953 rate_idx = 8;
954 break;
955 case DESC_RATEVHT2SS_MCS9:
956 rate_idx = 9;
957 break;
958 default:
959 rate_idx = 0;
960 break;
961 }
962 return rate_idx;
963 }
964 if (false == isht) {
965 if (IEEE80211_BAND_2GHZ == hw->conf.chandef.chan->band) {
966 switch (desc_rate) {
967 case DESC_RATE1M:
968 rate_idx = 0;
969 break;
970 case DESC_RATE2M:
971 rate_idx = 1;
972 break;
973 case DESC_RATE5_5M:
974 rate_idx = 2;
975 break;
976 case DESC_RATE11M:
977 rate_idx = 3;
978 break;
979 case DESC_RATE6M:
980 rate_idx = 4;
981 break;
982 case DESC_RATE9M:
983 rate_idx = 5;
984 break;
985 case DESC_RATE12M:
986 rate_idx = 6;
987 break;
988 case DESC_RATE18M:
989 rate_idx = 7;
990 break;
991 case DESC_RATE24M:
992 rate_idx = 8;
993 break;
994 case DESC_RATE36M:
995 rate_idx = 9;
996 break;
997 case DESC_RATE48M:
998 rate_idx = 10;
999 break;
1000 case DESC_RATE54M:
1001 rate_idx = 11;
1002 break;
1003 default:
1004 rate_idx = 0;
1005 break;
1006 }
1007 } else {
1008 switch (desc_rate) {
1009 case DESC_RATE6M:
1010 rate_idx = 0;
1011 break;
1012 case DESC_RATE9M:
1013 rate_idx = 1;
1014 break;
1015 case DESC_RATE12M:
1016 rate_idx = 2;
1017 break;
1018 case DESC_RATE18M:
1019 rate_idx = 3;
1020 break;
1021 case DESC_RATE24M:
1022 rate_idx = 4;
1023 break;
1024 case DESC_RATE36M:
1025 rate_idx = 5;
1026 break;
1027 case DESC_RATE48M:
1028 rate_idx = 6;
1029 break;
1030 case DESC_RATE54M:
1031 rate_idx = 7;
1032 break;
1033 default:
1034 rate_idx = 0;
1035 break;
1036 }
1037 }
1038 } else {
1039 switch (desc_rate) {
1040 case DESC_RATEMCS0:
1041 rate_idx = 0;
1042 break;
1043 case DESC_RATEMCS1:
1044 rate_idx = 1;
1045 break;
1046 case DESC_RATEMCS2:
1047 rate_idx = 2;
1048 break;
1049 case DESC_RATEMCS3:
1050 rate_idx = 3;
1051 break;
1052 case DESC_RATEMCS4:
1053 rate_idx = 4;
1054 break;
1055 case DESC_RATEMCS5:
1056 rate_idx = 5;
1057 break;
1058 case DESC_RATEMCS6:
1059 rate_idx = 6;
1060 break;
1061 case DESC_RATEMCS7:
1062 rate_idx = 7;
1063 break;
1064 case DESC_RATEMCS8:
1065 rate_idx = 8;
1066 break;
1067 case DESC_RATEMCS9:
1068 rate_idx = 9;
1069 break;
1070 case DESC_RATEMCS10:
1071 rate_idx = 10;
1072 break;
1073 case DESC_RATEMCS11:
1074 rate_idx = 11;
1075 break;
1076 case DESC_RATEMCS12:
1077 rate_idx = 12;
1078 break;
1079 case DESC_RATEMCS13:
1080 rate_idx = 13;
1081 break;
1082 case DESC_RATEMCS14:
1083 rate_idx = 14;
1084 break;
1085 case DESC_RATEMCS15:
1086 rate_idx = 15;
1087 break;
1088 default:
1089 rate_idx = 0;
1090 break;
1091 }
1092 }
1093 return rate_idx;
1094 }
1095 EXPORT_SYMBOL(rtlwifi_rate_mapping);
1096
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)1097 void rtl_get_tcb_desc(struct ieee80211_hw *hw,
1098 struct ieee80211_tx_info *info,
1099 struct ieee80211_sta *sta,
1100 struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc)
1101 {
1102 struct rtl_priv *rtlpriv = rtl_priv(hw);
1103 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
1104 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1105 struct ieee80211_rate *txrate;
1106 __le16 fc = rtl_get_fc(skb);
1107
1108 txrate = ieee80211_get_tx_rate(hw, info);
1109 if (txrate)
1110 tcb_desc->hw_rate = txrate->hw_value;
1111
1112 if (ieee80211_is_data(fc)) {
1113 /*
1114 *we set data rate INX 0
1115 *in rtl_rc.c if skb is special data or
1116 *mgt which need low data rate.
1117 */
1118
1119 /*
1120 *So tcb_desc->hw_rate is just used for
1121 *special data and mgt frames
1122 */
1123 if (info->control.rates[0].idx == 0 ||
1124 ieee80211_is_nullfunc(fc)) {
1125 tcb_desc->use_driver_rate = true;
1126 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
1127
1128 tcb_desc->disable_ratefallback = 1;
1129 } else {
1130 /*
1131 *because hw will nerver use hw_rate
1132 *when tcb_desc->use_driver_rate = false
1133 *so we never set highest N rate here,
1134 *and N rate will all be controlled by FW
1135 *when tcb_desc->use_driver_rate = false
1136 */
1137 if (sta && sta->vht_cap.vht_supported) {
1138 tcb_desc->hw_rate =
1139 _rtl_get_vht_highest_n_rate(hw, sta);
1140 } else {
1141 if (sta && (sta->ht_cap.ht_supported)) {
1142 tcb_desc->hw_rate =
1143 _rtl_get_highest_n_rate(hw, sta);
1144 } else {
1145 if (rtlmac->mode == WIRELESS_MODE_B) {
1146 tcb_desc->hw_rate =
1147 rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M];
1148 } else {
1149 tcb_desc->hw_rate =
1150 rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M];
1151 }
1152 }
1153 }
1154 }
1155
1156 if (is_multicast_ether_addr(ieee80211_get_DA(hdr)))
1157 tcb_desc->multicast = 1;
1158 else if (is_broadcast_ether_addr(ieee80211_get_DA(hdr)))
1159 tcb_desc->broadcast = 1;
1160
1161 _rtl_txrate_selectmode(hw, sta, tcb_desc);
1162 _rtl_query_bandwidth_mode(hw, sta, tcb_desc);
1163 _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info);
1164 _rtl_query_shortgi(hw, sta, tcb_desc, info);
1165 _rtl_query_protection_mode(hw, tcb_desc, info);
1166 } else {
1167 tcb_desc->use_driver_rate = true;
1168 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
1169 tcb_desc->disable_ratefallback = 1;
1170 tcb_desc->mac_id = 0;
1171 tcb_desc->packet_bw = false;
1172 }
1173 }
1174 EXPORT_SYMBOL(rtl_get_tcb_desc);
1175
rtl_tx_mgmt_proc(struct ieee80211_hw * hw,struct sk_buff * skb)1176 bool rtl_tx_mgmt_proc(struct ieee80211_hw *hw, struct sk_buff *skb)
1177 {
1178 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1179 struct rtl_priv *rtlpriv = rtl_priv(hw);
1180 __le16 fc = rtl_get_fc(skb);
1181
1182 if (rtlpriv->dm.supp_phymode_switch &&
1183 mac->link_state < MAC80211_LINKED &&
1184 (ieee80211_is_auth(fc) || ieee80211_is_probe_req(fc))) {
1185 if (rtlpriv->cfg->ops->chk_switch_dmdp)
1186 rtlpriv->cfg->ops->chk_switch_dmdp(hw);
1187 }
1188 if (ieee80211_is_auth(fc)) {
1189 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n");
1190 rtl_ips_nic_on(hw);
1191
1192 mac->link_state = MAC80211_LINKING;
1193 /* Dul mac */
1194 rtlpriv->phy.need_iqk = true;
1195
1196 }
1197
1198 return true;
1199 }
1200 EXPORT_SYMBOL_GPL(rtl_tx_mgmt_proc);
1201
1202 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw, u8 *sa,
1203 u8 *bssid, u16 tid);
1204
process_agg_start(struct ieee80211_hw * hw,struct ieee80211_hdr * hdr,u16 tid)1205 static void process_agg_start(struct ieee80211_hw *hw,
1206 struct ieee80211_hdr *hdr, u16 tid)
1207 {
1208 struct rtl_priv *rtlpriv = rtl_priv(hw);
1209 struct ieee80211_rx_status rx_status = { 0 };
1210 struct sk_buff *skb_delba = NULL;
1211
1212 skb_delba = rtl_make_del_ba(hw, hdr->addr2, hdr->addr3, tid);
1213 if (skb_delba) {
1214 rx_status.freq = hw->conf.chandef.chan->center_freq;
1215 rx_status.band = hw->conf.chandef.chan->band;
1216 rx_status.flag |= RX_FLAG_DECRYPTED;
1217 rx_status.flag |= RX_FLAG_MACTIME_START;
1218 rx_status.rate_idx = 0;
1219 rx_status.signal = 50 + 10;
1220 memcpy(IEEE80211_SKB_RXCB(skb_delba),
1221 &rx_status, sizeof(rx_status));
1222 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG,
1223 "fake del\n",
1224 skb_delba->data,
1225 skb_delba->len);
1226 ieee80211_rx_irqsafe(hw, skb_delba);
1227 }
1228 }
1229
rtl_action_proc(struct ieee80211_hw * hw,struct sk_buff * skb,u8 is_tx)1230 bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
1231 {
1232 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1233 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1234 struct rtl_priv *rtlpriv = rtl_priv(hw);
1235 __le16 fc = rtl_get_fc(skb);
1236 u8 *act = (u8 *)(((u8 *)skb->data + MAC80211_3ADDR_LEN));
1237 u8 category;
1238
1239 if (!ieee80211_is_action(fc))
1240 return true;
1241
1242 category = *act;
1243 act++;
1244 switch (category) {
1245 case ACT_CAT_BA:
1246 switch (*act) {
1247 case ACT_ADDBAREQ:
1248 if (mac->act_scanning)
1249 return false;
1250
1251 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1252 "%s ACT_ADDBAREQ From :%pM\n",
1253 is_tx ? "Tx" : "Rx", hdr->addr2);
1254 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, "req\n",
1255 skb->data, skb->len);
1256 if (!is_tx) {
1257 struct ieee80211_sta *sta = NULL;
1258 struct rtl_sta_info *sta_entry = NULL;
1259 struct rtl_tid_data *tid_data;
1260 struct ieee80211_mgmt *mgmt = (void *)skb->data;
1261 u16 capab = 0, tid = 0;
1262
1263 rcu_read_lock();
1264 sta = rtl_find_sta(hw, hdr->addr3);
1265 if (sta == NULL) {
1266 RT_TRACE(rtlpriv, COMP_SEND | COMP_RECV,
1267 DBG_DMESG, "sta is NULL\n");
1268 rcu_read_unlock();
1269 return true;
1270 }
1271
1272 sta_entry =
1273 (struct rtl_sta_info *)sta->drv_priv;
1274 if (!sta_entry) {
1275 rcu_read_unlock();
1276 return true;
1277 }
1278 capab =
1279 le16_to_cpu(mgmt->u.action.u.addba_req.capab);
1280 tid = (capab &
1281 IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
1282 tid_data = &sta_entry->tids[tid];
1283 if (tid_data->agg.rx_agg_state ==
1284 RTL_RX_AGG_START)
1285 process_agg_start(hw, hdr, tid);
1286 rcu_read_unlock();
1287 }
1288 break;
1289 case ACT_ADDBARSP:
1290 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1291 "%s ACT_ADDBARSP From :%pM\n",
1292 is_tx ? "Tx" : "Rx", hdr->addr2);
1293 break;
1294 case ACT_DELBA:
1295 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1296 "ACT_ADDBADEL From :%pM\n", hdr->addr2);
1297 break;
1298 }
1299 break;
1300 default:
1301 break;
1302 }
1303
1304 return true;
1305 }
1306 EXPORT_SYMBOL_GPL(rtl_action_proc);
1307
setup_arp_tx(struct rtl_priv * rtlpriv,struct rtl_ps_ctl * ppsc)1308 static void setup_arp_tx(struct rtl_priv *rtlpriv, struct rtl_ps_ctl *ppsc)
1309 {
1310 struct ieee80211_hw *hw = rtlpriv->hw;
1311
1312 rtlpriv->ra.is_special_data = true;
1313 if (rtlpriv->cfg->ops->get_btc_status())
1314 rtlpriv->btcoexist.btc_ops->btc_special_packet_notify(
1315 rtlpriv, 1);
1316 rtl_lps_leave(hw);
1317 ppsc->last_delaylps_stamp_jiffies = jiffies;
1318 }
1319
1320 /*should call before software enc*/
rtl_is_special_data(struct ieee80211_hw * hw,struct sk_buff * skb,u8 is_tx,bool is_enc)1321 u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx,
1322 bool is_enc)
1323 {
1324 struct rtl_priv *rtlpriv = rtl_priv(hw);
1325 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1326 __le16 fc = rtl_get_fc(skb);
1327 u16 ether_type;
1328 u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb);
1329 u8 encrypt_header_len = 0;
1330 u8 offset;
1331 const struct iphdr *ip;
1332
1333 if (!ieee80211_is_data(fc))
1334 goto end;
1335
1336 switch (rtlpriv->sec.pairwise_enc_algorithm) {
1337 case WEP40_ENCRYPTION:
1338 case WEP104_ENCRYPTION:
1339 encrypt_header_len = 4;/*WEP_IV_LEN*/
1340 break;
1341 case TKIP_ENCRYPTION:
1342 encrypt_header_len = 8;/*TKIP_IV_LEN*/
1343 break;
1344 case AESCCMP_ENCRYPTION:
1345 encrypt_header_len = 8;/*CCMP_HDR_LEN;*/
1346 break;
1347 default:
1348 break;
1349 }
1350
1351 offset = mac_hdr_len + SNAP_SIZE;
1352 if (is_enc)
1353 offset += encrypt_header_len;
1354 ether_type = be16_to_cpup((__be16 *)(skb->data + offset));
1355
1356 if (ETH_P_IP == ether_type) {
1357 ip = (struct iphdr *)((u8 *)skb->data + offset +
1358 PROTOC_TYPE_SIZE);
1359 if (IPPROTO_UDP == ip->protocol) {
1360 struct udphdr *udp = (struct udphdr *)((u8 *)ip +
1361 (ip->ihl << 2));
1362 if (((((u8 *)udp)[1] == 68) &&
1363 (((u8 *)udp)[3] == 67)) ||
1364 ((((u8 *)udp)[1] == 67) &&
1365 (((u8 *)udp)[3] == 68))) {
1366 /* 68 : UDP BOOTP client
1367 * 67 : UDP BOOTP server
1368 */
1369 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV),
1370 DBG_DMESG, "dhcp %s !!\n",
1371 (is_tx) ? "Tx" : "Rx");
1372
1373 if (is_tx)
1374 setup_arp_tx(rtlpriv, ppsc);
1375 return true;
1376 }
1377 }
1378 } else if (ETH_P_ARP == ether_type) {
1379 if (is_tx)
1380 setup_arp_tx(rtlpriv, ppsc);
1381
1382 return true;
1383 } else if (ETH_P_PAE == ether_type) {
1384 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1385 "802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx");
1386
1387 if (is_tx) {
1388 rtlpriv->ra.is_special_data = true;
1389 rtl_lps_leave(hw);
1390 ppsc->last_delaylps_stamp_jiffies = jiffies;
1391 }
1392
1393 return true;
1394 } else if (ETH_P_IPV6 == ether_type) {
1395 /* TODO: Handle any IPv6 cases that need special handling.
1396 * For now, always return false
1397 */
1398 goto end;
1399 }
1400
1401 end:
1402 rtlpriv->ra.is_special_data = false;
1403 return false;
1404 }
1405 EXPORT_SYMBOL_GPL(rtl_is_special_data);
1406
1407 /*********************************************************
1408 *
1409 * functions called by core.c
1410 *
1411 *********************************************************/
rtl_tx_agg_start(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u16 tid,u16 * ssn)1412 int rtl_tx_agg_start(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1413 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
1414 {
1415 struct rtl_priv *rtlpriv = rtl_priv(hw);
1416 struct rtl_tid_data *tid_data;
1417 struct rtl_sta_info *sta_entry = NULL;
1418
1419 if (sta == NULL)
1420 return -EINVAL;
1421
1422 if (unlikely(tid >= MAX_TID_COUNT))
1423 return -EINVAL;
1424
1425 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1426 if (!sta_entry)
1427 return -ENXIO;
1428 tid_data = &sta_entry->tids[tid];
1429
1430 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1431 "on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1432 tid_data->seq_number);
1433
1434 *ssn = tid_data->seq_number;
1435 tid_data->agg.agg_state = RTL_AGG_START;
1436
1437 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1438 return 0;
1439 }
1440
rtl_tx_agg_stop(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u16 tid)1441 int rtl_tx_agg_stop(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1442 struct ieee80211_sta *sta, u16 tid)
1443 {
1444 struct rtl_priv *rtlpriv = rtl_priv(hw);
1445 struct rtl_tid_data *tid_data;
1446 struct rtl_sta_info *sta_entry = NULL;
1447
1448 if (sta == NULL)
1449 return -EINVAL;
1450
1451 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1452 "on ra = %pM tid = %d\n", sta->addr, tid);
1453
1454 if (unlikely(tid >= MAX_TID_COUNT))
1455 return -EINVAL;
1456
1457 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1458 tid_data = &sta_entry->tids[tid];
1459 sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP;
1460
1461 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1462 return 0;
1463 }
1464
rtl_rx_agg_start(struct ieee80211_hw * hw,struct ieee80211_sta * sta,u16 tid)1465 int rtl_rx_agg_start(struct ieee80211_hw *hw,
1466 struct ieee80211_sta *sta, u16 tid)
1467 {
1468 struct rtl_priv *rtlpriv = rtl_priv(hw);
1469 struct rtl_tid_data *tid_data;
1470 struct rtl_sta_info *sta_entry = NULL;
1471
1472 if (sta == NULL)
1473 return -EINVAL;
1474
1475 if (unlikely(tid >= MAX_TID_COUNT))
1476 return -EINVAL;
1477
1478 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1479 if (!sta_entry)
1480 return -ENXIO;
1481 tid_data = &sta_entry->tids[tid];
1482
1483 RT_TRACE(rtlpriv, COMP_RECV, DBG_DMESG,
1484 "on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1485 tid_data->seq_number);
1486
1487 tid_data->agg.rx_agg_state = RTL_RX_AGG_START;
1488 return 0;
1489 }
1490
rtl_rx_agg_stop(struct ieee80211_hw * hw,struct ieee80211_sta * sta,u16 tid)1491 int rtl_rx_agg_stop(struct ieee80211_hw *hw,
1492 struct ieee80211_sta *sta, u16 tid)
1493 {
1494 struct rtl_priv *rtlpriv = rtl_priv(hw);
1495 struct rtl_sta_info *sta_entry = NULL;
1496
1497 if (sta == NULL)
1498 return -EINVAL;
1499
1500 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1501 "on ra = %pM tid = %d\n", sta->addr, tid);
1502
1503 if (unlikely(tid >= MAX_TID_COUNT))
1504 return -EINVAL;
1505
1506 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1507 sta_entry->tids[tid].agg.rx_agg_state = RTL_RX_AGG_STOP;
1508
1509 return 0;
1510 }
rtl_tx_agg_oper(struct ieee80211_hw * hw,struct ieee80211_sta * sta,u16 tid)1511 int rtl_tx_agg_oper(struct ieee80211_hw *hw,
1512 struct ieee80211_sta *sta, u16 tid)
1513 {
1514 struct rtl_priv *rtlpriv = rtl_priv(hw);
1515 struct rtl_sta_info *sta_entry = NULL;
1516
1517 if (sta == NULL)
1518 return -EINVAL;
1519
1520 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1521 "on ra = %pM tid = %d\n", sta->addr, tid);
1522
1523 if (unlikely(tid >= MAX_TID_COUNT))
1524 return -EINVAL;
1525
1526 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1527 sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL;
1528
1529 return 0;
1530 }
1531
1532 /*********************************************************
1533 *
1534 * wq & timer callback functions
1535 *
1536 *********************************************************/
1537 /* this function is used for roaming */
rtl_beacon_statistic(struct ieee80211_hw * hw,struct sk_buff * skb)1538 void rtl_beacon_statistic(struct ieee80211_hw *hw, struct sk_buff *skb)
1539 {
1540 struct rtl_priv *rtlpriv = rtl_priv(hw);
1541 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1542
1543 if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION)
1544 return;
1545
1546 if (rtlpriv->mac80211.link_state < MAC80211_LINKED)
1547 return;
1548
1549 /* check if this really is a beacon */
1550 if (!ieee80211_is_beacon(hdr->frame_control) &&
1551 !ieee80211_is_probe_resp(hdr->frame_control))
1552 return;
1553
1554 /* min. beacon length + FCS_LEN */
1555 if (skb->len <= 40 + FCS_LEN)
1556 return;
1557
1558 /* and only beacons from the associated BSSID, please */
1559 if (!ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid))
1560 return;
1561
1562 rtlpriv->link_info.bcn_rx_inperiod++;
1563 }
1564 EXPORT_SYMBOL_GPL(rtl_beacon_statistic);
1565
rtl_watchdog_wq_callback(void * data)1566 void rtl_watchdog_wq_callback(void *data)
1567 {
1568 struct rtl_works *rtlworks = container_of_dwork_rtl(data,
1569 struct rtl_works,
1570 watchdog_wq);
1571 struct ieee80211_hw *hw = rtlworks->hw;
1572 struct rtl_priv *rtlpriv = rtl_priv(hw);
1573 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1574 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1575 bool busytraffic = false;
1576 bool tx_busy_traffic = false;
1577 bool rx_busy_traffic = false;
1578 bool higher_busytraffic = false;
1579 bool higher_busyrxtraffic = false;
1580 u8 idx, tid;
1581 u32 rx_cnt_inp4eriod = 0;
1582 u32 tx_cnt_inp4eriod = 0;
1583 u32 aver_rx_cnt_inperiod = 0;
1584 u32 aver_tx_cnt_inperiod = 0;
1585 u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0};
1586 u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0};
1587
1588 if (is_hal_stop(rtlhal))
1589 return;
1590
1591 /* <1> Determine if action frame is allowed */
1592 if (mac->link_state > MAC80211_NOLINK) {
1593 if (mac->cnt_after_linked < 20)
1594 mac->cnt_after_linked++;
1595 } else {
1596 mac->cnt_after_linked = 0;
1597 }
1598
1599 /* <2> to check if traffic busy, if
1600 * busytraffic we don't change channel
1601 */
1602 if (mac->link_state >= MAC80211_LINKED) {
1603
1604 /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */
1605 for (idx = 0; idx <= 2; idx++) {
1606 rtlpriv->link_info.num_rx_in4period[idx] =
1607 rtlpriv->link_info.num_rx_in4period[idx + 1];
1608 rtlpriv->link_info.num_tx_in4period[idx] =
1609 rtlpriv->link_info.num_tx_in4period[idx + 1];
1610 }
1611 rtlpriv->link_info.num_rx_in4period[3] =
1612 rtlpriv->link_info.num_rx_inperiod;
1613 rtlpriv->link_info.num_tx_in4period[3] =
1614 rtlpriv->link_info.num_tx_inperiod;
1615 for (idx = 0; idx <= 3; idx++) {
1616 rx_cnt_inp4eriod +=
1617 rtlpriv->link_info.num_rx_in4period[idx];
1618 tx_cnt_inp4eriod +=
1619 rtlpriv->link_info.num_tx_in4period[idx];
1620 }
1621 aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4;
1622 aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4;
1623
1624 /* (2) check traffic busy */
1625 if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) {
1626 busytraffic = true;
1627 if (aver_rx_cnt_inperiod > aver_tx_cnt_inperiod)
1628 rx_busy_traffic = true;
1629 else
1630 tx_busy_traffic = false;
1631 }
1632
1633 /* Higher Tx/Rx data. */
1634 if (aver_rx_cnt_inperiod > 4000 ||
1635 aver_tx_cnt_inperiod > 4000) {
1636 higher_busytraffic = true;
1637
1638 /* Extremely high Rx data. */
1639 if (aver_rx_cnt_inperiod > 5000)
1640 higher_busyrxtraffic = true;
1641 }
1642
1643 /* check every tid's tx traffic */
1644 for (tid = 0; tid <= 7; tid++) {
1645 for (idx = 0; idx <= 2; idx++)
1646 rtlpriv->link_info.tidtx_in4period[tid][idx] =
1647 rtlpriv->link_info.tidtx_in4period[tid]
1648 [idx + 1];
1649 rtlpriv->link_info.tidtx_in4period[tid][3] =
1650 rtlpriv->link_info.tidtx_inperiod[tid];
1651
1652 for (idx = 0; idx <= 3; idx++)
1653 tidtx_inp4eriod[tid] +=
1654 rtlpriv->link_info.tidtx_in4period[tid][idx];
1655 aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4;
1656 if (aver_tidtx_inperiod[tid] > 5000)
1657 rtlpriv->link_info.higher_busytxtraffic[tid] =
1658 true;
1659 else
1660 rtlpriv->link_info.higher_busytxtraffic[tid] =
1661 false;
1662 }
1663
1664 if (((rtlpriv->link_info.num_rx_inperiod +
1665 rtlpriv->link_info.num_tx_inperiod) > 8) ||
1666 (rtlpriv->link_info.num_rx_inperiod > 2))
1667 rtl_lps_leave(hw);
1668 else
1669 rtl_lps_enter(hw);
1670 }
1671
1672 rtlpriv->link_info.num_rx_inperiod = 0;
1673 rtlpriv->link_info.num_tx_inperiod = 0;
1674 for (tid = 0; tid <= 7; tid++)
1675 rtlpriv->link_info.tidtx_inperiod[tid] = 0;
1676
1677 rtlpriv->link_info.busytraffic = busytraffic;
1678 rtlpriv->link_info.higher_busytraffic = higher_busytraffic;
1679 rtlpriv->link_info.rx_busy_traffic = rx_busy_traffic;
1680 rtlpriv->link_info.tx_busy_traffic = tx_busy_traffic;
1681 rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic;
1682
1683 /* <3> DM */
1684 if (!rtlpriv->cfg->mod_params->disable_watchdog)
1685 rtlpriv->cfg->ops->dm_watchdog(hw);
1686
1687 /* <4> roaming */
1688 if (mac->link_state == MAC80211_LINKED &&
1689 mac->opmode == NL80211_IFTYPE_STATION) {
1690 if ((rtlpriv->link_info.bcn_rx_inperiod +
1691 rtlpriv->link_info.num_rx_inperiod) == 0) {
1692 rtlpriv->link_info.roam_times++;
1693 RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG,
1694 "AP off for %d s\n",
1695 (rtlpriv->link_info.roam_times * 2));
1696
1697 /* if we can't recv beacon for 10s,
1698 * we should reconnect this AP
1699 */
1700 if (rtlpriv->link_info.roam_times >= 5) {
1701 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1702 "AP off, try to reconnect now\n");
1703 rtlpriv->link_info.roam_times = 0;
1704 ieee80211_connection_loss(
1705 rtlpriv->mac80211.vif);
1706 }
1707 } else {
1708 rtlpriv->link_info.roam_times = 0;
1709 }
1710 }
1711
1712 if (rtlpriv->cfg->ops->get_btc_status())
1713 rtlpriv->btcoexist.btc_ops->btc_periodical(rtlpriv);
1714
1715 rtlpriv->link_info.bcn_rx_inperiod = 0;
1716 }
1717
rtl_watch_dog_timer_callback(unsigned long data)1718 void rtl_watch_dog_timer_callback(unsigned long data)
1719 {
1720 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
1721 struct rtl_priv *rtlpriv = rtl_priv(hw);
1722
1723 queue_delayed_work(rtlpriv->works.rtl_wq,
1724 &rtlpriv->works.watchdog_wq, 0);
1725
1726 mod_timer(&rtlpriv->works.watchdog_timer,
1727 jiffies + MSECS(RTL_WATCH_DOG_TIME));
1728 }
rtl_fwevt_wq_callback(void * data)1729 void rtl_fwevt_wq_callback(void *data)
1730 {
1731 struct rtl_works *rtlworks =
1732 container_of_dwork_rtl(data, struct rtl_works, fwevt_wq);
1733 struct ieee80211_hw *hw = rtlworks->hw;
1734 struct rtl_priv *rtlpriv = rtl_priv(hw);
1735
1736 rtlpriv->cfg->ops->c2h_command_handle(hw);
1737 }
rtl_easy_concurrent_retrytimer_callback(unsigned long data)1738 void rtl_easy_concurrent_retrytimer_callback(unsigned long data)
1739 {
1740 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
1741 struct rtl_priv *rtlpriv = rtl_priv(hw);
1742 struct rtl_priv *buddy_priv = rtlpriv->buddy_priv;
1743
1744 if (buddy_priv == NULL)
1745 return;
1746
1747 rtlpriv->cfg->ops->dualmac_easy_concurrent(hw);
1748 }
1749 /*********************************************************
1750 *
1751 * frame process functions
1752 *
1753 *********************************************************/
rtl_find_ie(u8 * data,unsigned int len,u8 ie)1754 u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie)
1755 {
1756 struct ieee80211_mgmt *mgmt = (void *)data;
1757 u8 *pos, *end;
1758
1759 pos = (u8 *)mgmt->u.beacon.variable;
1760 end = data + len;
1761 while (pos < end) {
1762 if (pos + 2 + pos[1] > end)
1763 return NULL;
1764
1765 if (pos[0] == ie)
1766 return pos;
1767
1768 pos += 2 + pos[1];
1769 }
1770 return NULL;
1771 }
1772
1773 /* when we use 2 rx ants we send IEEE80211_SMPS_OFF */
1774 /* 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)1775 static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw,
1776 enum ieee80211_smps_mode smps,
1777 u8 *da, u8 *bssid)
1778 {
1779 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1780 struct sk_buff *skb;
1781 struct ieee80211_mgmt *action_frame;
1782
1783 /* 27 = header + category + action + smps mode */
1784 skb = dev_alloc_skb(27 + hw->extra_tx_headroom);
1785 if (!skb)
1786 return NULL;
1787
1788 skb_reserve(skb, hw->extra_tx_headroom);
1789 action_frame = (void *)skb_put(skb, 27);
1790 memset(action_frame, 0, 27);
1791 memcpy(action_frame->da, da, ETH_ALEN);
1792 memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN);
1793 memcpy(action_frame->bssid, bssid, ETH_ALEN);
1794 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1795 IEEE80211_STYPE_ACTION);
1796 action_frame->u.action.category = WLAN_CATEGORY_HT;
1797 action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS;
1798 switch (smps) {
1799 case IEEE80211_SMPS_AUTOMATIC:/* 0 */
1800 case IEEE80211_SMPS_NUM_MODES:/* 4 */
1801 WARN_ON(1);
1802 /* Here will get a 'MISSING_BREAK' in Coverity Test, just ignore it.
1803 * According to Kernel Code, here is right.
1804 */
1805 case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/
1806 action_frame->u.action.u.ht_smps.smps_control =
1807 WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */
1808 break;
1809 case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/
1810 action_frame->u.action.u.ht_smps.smps_control =
1811 WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */
1812 break;
1813 case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/
1814 action_frame->u.action.u.ht_smps.smps_control =
1815 WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */
1816 break;
1817 }
1818
1819 return skb;
1820 }
1821
rtl_send_smps_action(struct ieee80211_hw * hw,struct ieee80211_sta * sta,enum ieee80211_smps_mode smps)1822 int rtl_send_smps_action(struct ieee80211_hw *hw,
1823 struct ieee80211_sta *sta,
1824 enum ieee80211_smps_mode smps)
1825 {
1826 struct rtl_priv *rtlpriv = rtl_priv(hw);
1827 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1828 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1829 struct sk_buff *skb = NULL;
1830 struct rtl_tcb_desc tcb_desc;
1831 u8 bssid[ETH_ALEN] = {0};
1832
1833 memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
1834
1835 if (rtlpriv->mac80211.act_scanning)
1836 goto err_free;
1837
1838 if (!sta)
1839 goto err_free;
1840
1841 if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
1842 goto err_free;
1843
1844 if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
1845 goto err_free;
1846
1847 if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP)
1848 memcpy(bssid, rtlpriv->efuse.dev_addr, ETH_ALEN);
1849 else
1850 memcpy(bssid, rtlpriv->mac80211.bssid, ETH_ALEN);
1851
1852 skb = rtl_make_smps_action(hw, smps, sta->addr, bssid);
1853 /* this is a type = mgmt * stype = action frame */
1854 if (skb) {
1855 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1856 struct rtl_sta_info *sta_entry =
1857 (struct rtl_sta_info *) sta->drv_priv;
1858 sta_entry->mimo_ps = smps;
1859 /* rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0); */
1860
1861 info->control.rates[0].idx = 0;
1862 info->band = hw->conf.chandef.chan->band;
1863 rtlpriv->intf_ops->adapter_tx(hw, sta, skb, &tcb_desc);
1864 }
1865 return 1;
1866
1867 err_free:
1868 return 0;
1869 }
1870 EXPORT_SYMBOL(rtl_send_smps_action);
1871
rtl_phy_scan_operation_backup(struct ieee80211_hw * hw,u8 operation)1872 void rtl_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation)
1873 {
1874 struct rtl_priv *rtlpriv = rtl_priv(hw);
1875 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1876 enum io_type iotype;
1877
1878 if (!is_hal_stop(rtlhal)) {
1879 switch (operation) {
1880 case SCAN_OPT_BACKUP:
1881 iotype = IO_CMD_PAUSE_DM_BY_SCAN;
1882 rtlpriv->cfg->ops->set_hw_reg(hw,
1883 HW_VAR_IO_CMD,
1884 (u8 *)&iotype);
1885 break;
1886 case SCAN_OPT_RESTORE:
1887 iotype = IO_CMD_RESUME_DM_BY_SCAN;
1888 rtlpriv->cfg->ops->set_hw_reg(hw,
1889 HW_VAR_IO_CMD,
1890 (u8 *)&iotype);
1891 break;
1892 default:
1893 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1894 "Unknown Scan Backup operation.\n");
1895 break;
1896 }
1897 }
1898 }
1899 EXPORT_SYMBOL(rtl_phy_scan_operation_backup);
1900
1901 /* because mac80211 have issues when can receive del ba
1902 * so here we just make a fake del_ba if we receive a ba_req
1903 * but rx_agg was opened to let mac80211 release some ba
1904 * related resources, so please this del_ba for tx
1905 */
rtl_make_del_ba(struct ieee80211_hw * hw,u8 * sa,u8 * bssid,u16 tid)1906 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw,
1907 u8 *sa, u8 *bssid, u16 tid)
1908 {
1909 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1910 struct sk_buff *skb;
1911 struct ieee80211_mgmt *action_frame;
1912 u16 params;
1913
1914 /* 27 = header + category + action + smps mode */
1915 skb = dev_alloc_skb(34 + hw->extra_tx_headroom);
1916 if (!skb)
1917 return NULL;
1918
1919 skb_reserve(skb, hw->extra_tx_headroom);
1920 action_frame = (void *)skb_put(skb, 34);
1921 memset(action_frame, 0, 34);
1922 memcpy(action_frame->sa, sa, ETH_ALEN);
1923 memcpy(action_frame->da, rtlefuse->dev_addr, ETH_ALEN);
1924 memcpy(action_frame->bssid, bssid, ETH_ALEN);
1925 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1926 IEEE80211_STYPE_ACTION);
1927 action_frame->u.action.category = WLAN_CATEGORY_BACK;
1928 action_frame->u.action.u.delba.action_code = WLAN_ACTION_DELBA;
1929 params = (u16)(1 << 11); /* bit 11 initiator */
1930 params |= (u16)(tid << 12); /* bit 15:12 TID number */
1931
1932 action_frame->u.action.u.delba.params = cpu_to_le16(params);
1933 action_frame->u.action.u.delba.reason_code =
1934 cpu_to_le16(WLAN_REASON_QSTA_TIMEOUT);
1935
1936 return skb;
1937 }
1938
1939 /*********************************************************
1940 *
1941 * IOT functions
1942 *
1943 *********************************************************/
rtl_chk_vendor_ouisub(struct ieee80211_hw * hw,struct octet_string vendor_ie)1944 static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw,
1945 struct octet_string vendor_ie)
1946 {
1947 struct rtl_priv *rtlpriv = rtl_priv(hw);
1948 bool matched = false;
1949 static u8 athcap_1[] = { 0x00, 0x03, 0x7F };
1950 static u8 athcap_2[] = { 0x00, 0x13, 0x74 };
1951 static u8 broadcap_1[] = { 0x00, 0x10, 0x18 };
1952 static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 };
1953 static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 };
1954 static u8 racap[] = { 0x00, 0x0c, 0x43 };
1955 static u8 ciscocap[] = { 0x00, 0x40, 0x96 };
1956 static u8 marvcap[] = { 0x00, 0x50, 0x43 };
1957
1958 if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 ||
1959 memcmp(vendor_ie.octet, athcap_2, 3) == 0) {
1960 rtlpriv->mac80211.vendor = PEER_ATH;
1961 matched = true;
1962 } else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 ||
1963 memcmp(vendor_ie.octet, broadcap_2, 3) == 0 ||
1964 memcmp(vendor_ie.octet, broadcap_3, 3) == 0) {
1965 rtlpriv->mac80211.vendor = PEER_BROAD;
1966 matched = true;
1967 } else if (memcmp(vendor_ie.octet, racap, 3) == 0) {
1968 rtlpriv->mac80211.vendor = PEER_RAL;
1969 matched = true;
1970 } else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) {
1971 rtlpriv->mac80211.vendor = PEER_CISCO;
1972 matched = true;
1973 } else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) {
1974 rtlpriv->mac80211.vendor = PEER_MARV;
1975 matched = true;
1976 }
1977
1978 return matched;
1979 }
1980
rtl_find_221_ie(struct ieee80211_hw * hw,u8 * data,unsigned int len)1981 static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data,
1982 unsigned int len)
1983 {
1984 struct ieee80211_mgmt *mgmt = (void *)data;
1985 struct octet_string vendor_ie;
1986 u8 *pos, *end;
1987
1988 pos = (u8 *)mgmt->u.beacon.variable;
1989 end = data + len;
1990 while (pos < end) {
1991 if (pos[0] == 221) {
1992 vendor_ie.length = pos[1];
1993 vendor_ie.octet = &pos[2];
1994 if (rtl_chk_vendor_ouisub(hw, vendor_ie))
1995 return true;
1996 }
1997
1998 if (pos + 2 + pos[1] > end)
1999 return false;
2000
2001 pos += 2 + pos[1];
2002 }
2003 return false;
2004 }
2005
rtl_recognize_peer(struct ieee80211_hw * hw,u8 * data,unsigned int len)2006 void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len)
2007 {
2008 struct rtl_priv *rtlpriv = rtl_priv(hw);
2009 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
2010 struct ieee80211_hdr *hdr = (void *)data;
2011 u32 vendor = PEER_UNKNOWN;
2012
2013 static u8 ap3_1[3] = { 0x00, 0x14, 0xbf };
2014 static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 };
2015 static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e };
2016 static u8 ap4_1[3] = { 0x00, 0x90, 0xcc };
2017 static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e };
2018 static u8 ap4_3[3] = { 0x00, 0x18, 0x02 };
2019 static u8 ap4_4[3] = { 0x00, 0x17, 0x3f };
2020 static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf };
2021 static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 };
2022 static u8 ap5_2[3] = { 0x00, 0x21, 0x91 };
2023 static u8 ap5_3[3] = { 0x00, 0x24, 0x01 };
2024 static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 };
2025 static u8 ap5_5[3] = { 0x00, 0x17, 0x9A };
2026 static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 };
2027 static u8 ap6_1[3] = { 0x00, 0x17, 0x94 };
2028 static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 };
2029
2030 if (mac->opmode != NL80211_IFTYPE_STATION)
2031 return;
2032
2033 if (mac->link_state == MAC80211_NOLINK) {
2034 mac->vendor = PEER_UNKNOWN;
2035 return;
2036 }
2037
2038 if (mac->cnt_after_linked > 2)
2039 return;
2040
2041 /* check if this really is a beacon */
2042 if (!ieee80211_is_beacon(hdr->frame_control))
2043 return;
2044
2045 /* min. beacon length + FCS_LEN */
2046 if (len <= 40 + FCS_LEN)
2047 return;
2048
2049 /* and only beacons from the associated BSSID, please */
2050 if (!ether_addr_equal_64bits(hdr->addr3, rtlpriv->mac80211.bssid))
2051 return;
2052
2053 if (rtl_find_221_ie(hw, data, len))
2054 vendor = mac->vendor;
2055
2056 if ((memcmp(mac->bssid, ap5_1, 3) == 0) ||
2057 (memcmp(mac->bssid, ap5_2, 3) == 0) ||
2058 (memcmp(mac->bssid, ap5_3, 3) == 0) ||
2059 (memcmp(mac->bssid, ap5_4, 3) == 0) ||
2060 (memcmp(mac->bssid, ap5_5, 3) == 0) ||
2061 (memcmp(mac->bssid, ap5_6, 3) == 0) ||
2062 vendor == PEER_ATH) {
2063 vendor = PEER_ATH;
2064 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ath find\n");
2065 } else if ((memcmp(mac->bssid, ap4_4, 3) == 0) ||
2066 (memcmp(mac->bssid, ap4_5, 3) == 0) ||
2067 (memcmp(mac->bssid, ap4_1, 3) == 0) ||
2068 (memcmp(mac->bssid, ap4_2, 3) == 0) ||
2069 (memcmp(mac->bssid, ap4_3, 3) == 0) ||
2070 vendor == PEER_RAL) {
2071 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ral find\n");
2072 vendor = PEER_RAL;
2073 } else if (memcmp(mac->bssid, ap6_1, 3) == 0 ||
2074 vendor == PEER_CISCO) {
2075 vendor = PEER_CISCO;
2076 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>cisco find\n");
2077 } else if ((memcmp(mac->bssid, ap3_1, 3) == 0) ||
2078 (memcmp(mac->bssid, ap3_2, 3) == 0) ||
2079 (memcmp(mac->bssid, ap3_3, 3) == 0) ||
2080 vendor == PEER_BROAD) {
2081 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>broad find\n");
2082 vendor = PEER_BROAD;
2083 } else if (memcmp(mac->bssid, ap7_1, 3) == 0 ||
2084 vendor == PEER_MARV) {
2085 vendor = PEER_MARV;
2086 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>marv find\n");
2087 }
2088
2089 mac->vendor = vendor;
2090 }
2091 EXPORT_SYMBOL_GPL(rtl_recognize_peer);
2092
2093 /*********************************************************
2094 *
2095 * sysfs functions
2096 *
2097 *********************************************************/
rtl_show_debug_level(struct device * d,struct device_attribute * attr,char * buf)2098 static ssize_t rtl_show_debug_level(struct device *d,
2099 struct device_attribute *attr, char *buf)
2100 {
2101 struct ieee80211_hw *hw = dev_get_drvdata(d);
2102 struct rtl_priv *rtlpriv = rtl_priv(hw);
2103
2104 return sprintf(buf, "0x%08X\n", rtlpriv->dbg.global_debuglevel);
2105 }
2106
rtl_store_debug_level(struct device * d,struct device_attribute * attr,const char * buf,size_t count)2107 static ssize_t rtl_store_debug_level(struct device *d,
2108 struct device_attribute *attr,
2109 const char *buf, size_t count)
2110 {
2111 struct ieee80211_hw *hw = dev_get_drvdata(d);
2112 struct rtl_priv *rtlpriv = rtl_priv(hw);
2113 unsigned long val;
2114 int ret;
2115
2116 ret = kstrtoul(buf, 0, &val);
2117 if (ret) {
2118 RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG,
2119 "%s is not in hex or decimal form.\n", buf);
2120 } else {
2121 rtlpriv->dbg.global_debuglevel = val;
2122 RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG,
2123 "debuglevel:%x\n",
2124 rtlpriv->dbg.global_debuglevel);
2125 }
2126
2127 return strnlen(buf, count);
2128 }
2129
2130 static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
2131 rtl_show_debug_level, rtl_store_debug_level);
2132
2133 static struct attribute *rtl_sysfs_entries[] = {
2134
2135 &dev_attr_debug_level.attr,
2136
2137 NULL
2138 };
2139
2140 /*
2141 * "name" is folder name witch will be
2142 * put in device directory like :
2143 * sys/devices/pci0000:00/0000:00:1c.4/
2144 * 0000:06:00.0/rtl_sysfs
2145 */
2146 struct attribute_group rtl_attribute_group = {
2147 .name = "rtlsysfs",
2148 .attrs = rtl_sysfs_entries,
2149 };
2150 EXPORT_SYMBOL_GPL(rtl_attribute_group);
2151
2152 MODULE_AUTHOR("lizhaoming <chaoming_li@realsil.com.cn>");
2153 MODULE_AUTHOR("Realtek WlanFAE <wlanfae@realtek.com>");
2154 MODULE_AUTHOR("Larry Finger <Larry.FInger@lwfinger.net>");
2155 MODULE_LICENSE("GPL");
2156 MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");
2157
2158 struct rtl_global_var rtl_global_var = {};
2159 EXPORT_SYMBOL_GPL(rtl_global_var);
2160
rtl_core_module_init(void)2161 static int __init rtl_core_module_init(void)
2162 {
2163 if (rtl_rate_control_register())
2164 pr_err("rtl: Unable to register rtl_rc, use default RC !!\n");
2165
2166 /* init some global vars */
2167 INIT_LIST_HEAD(&rtl_global_var.glb_priv_list);
2168 spin_lock_init(&rtl_global_var.glb_list_lock);
2169
2170 return 0;
2171 }
2172
rtl_core_module_exit(void)2173 static void __exit rtl_core_module_exit(void)
2174 {
2175 /*RC*/
2176 rtl_rate_control_unregister();
2177 }
2178
2179 module_init(rtl_core_module_init);
2180 module_exit(rtl_core_module_exit);
2181