1 // SPDX-License-Identifier: ISC
2 /* Copyright (C) 2019 MediaTek Inc.
3 *
4 * Author: Ryder Lee <ryder.lee@mediatek.com>
5 * Roy Luo <royluo@google.com>
6 * Felix Fietkau <nbd@nbd.name>
7 * Lorenzo Bianconi <lorenzo@kernel.org>
8 */
9
10 #include <linux/etherdevice.h>
11 #include <linux/timekeeping.h>
12 #include "mt7615.h"
13 #include "../trace.h"
14 #include "../dma.h"
15 #include "mt7615_trace.h"
16 #include "mac.h"
17
18 #define to_rssi(field, rxv) ((FIELD_GET(field, rxv) - 220) / 2)
19
20 static const struct mt7615_dfs_radar_spec etsi_radar_specs = {
21 .pulse_th = { 40, -10, -80, 800, 3360, 128, 5200 },
22 .radar_pattern = {
23 [5] = { 1, 0, 6, 32, 28, 0, 17, 990, 5010, 1, 1 },
24 [6] = { 1, 0, 9, 32, 28, 0, 27, 615, 5010, 1, 1 },
25 [7] = { 1, 0, 15, 32, 28, 0, 27, 240, 445, 1, 1 },
26 [8] = { 1, 0, 12, 32, 28, 0, 42, 240, 510, 1, 1 },
27 [9] = { 1, 1, 0, 0, 0, 0, 14, 2490, 3343, 0, 0, 12, 32, 28 },
28 [10] = { 1, 1, 0, 0, 0, 0, 14, 2490, 3343, 0, 0, 15, 32, 24 },
29 [11] = { 1, 1, 0, 0, 0, 0, 14, 823, 2510, 0, 0, 18, 32, 28 },
30 [12] = { 1, 1, 0, 0, 0, 0, 14, 823, 2510, 0, 0, 27, 32, 24 },
31 },
32 };
33
34 static const struct mt7615_dfs_radar_spec fcc_radar_specs = {
35 .pulse_th = { 40, -10, -80, 800, 3360, 128, 5200 },
36 .radar_pattern = {
37 [0] = { 1, 0, 9, 32, 28, 0, 13, 508, 3076, 1, 1 },
38 [1] = { 1, 0, 12, 32, 28, 0, 17, 140, 240, 1, 1 },
39 [2] = { 1, 0, 8, 32, 28, 0, 22, 190, 510, 1, 1 },
40 [3] = { 1, 0, 6, 32, 28, 0, 32, 190, 510, 1, 1 },
41 [4] = { 1, 0, 9, 255, 28, 0, 13, 323, 343, 1, 32 },
42 },
43 };
44
45 static const struct mt7615_dfs_radar_spec jp_radar_specs = {
46 .pulse_th = { 40, -10, -80, 800, 3360, 128, 5200 },
47 .radar_pattern = {
48 [0] = { 1, 0, 8, 32, 28, 0, 13, 508, 3076, 1, 1 },
49 [1] = { 1, 0, 12, 32, 28, 0, 17, 140, 240, 1, 1 },
50 [2] = { 1, 0, 8, 32, 28, 0, 22, 190, 510, 1, 1 },
51 [3] = { 1, 0, 6, 32, 28, 0, 32, 190, 510, 1, 1 },
52 [4] = { 1, 0, 9, 32, 28, 0, 13, 323, 343, 1, 32 },
53 [13] = { 1, 0, 8, 32, 28, 0, 14, 3836, 3856, 1, 1 },
54 [14] = { 1, 0, 8, 32, 28, 0, 14, 3990, 4010, 1, 1 },
55 },
56 };
57
mt7615_rx_get_wcid(struct mt7615_dev * dev,u8 idx,bool unicast)58 static struct mt76_wcid *mt7615_rx_get_wcid(struct mt7615_dev *dev,
59 u8 idx, bool unicast)
60 {
61 struct mt7615_sta *sta;
62 struct mt76_wcid *wcid;
63
64 if (idx >= MT7615_WTBL_SIZE)
65 return NULL;
66
67 wcid = rcu_dereference(dev->mt76.wcid[idx]);
68 if (unicast || !wcid)
69 return wcid;
70
71 if (!wcid->sta)
72 return NULL;
73
74 sta = container_of(wcid, struct mt7615_sta, wcid);
75 if (!sta->vif)
76 return NULL;
77
78 return &sta->vif->sta.wcid;
79 }
80
mt7615_mac_reset_counters(struct mt7615_dev * dev)81 void mt7615_mac_reset_counters(struct mt7615_dev *dev)
82 {
83 int i;
84
85 for (i = 0; i < 4; i++) {
86 mt76_rr(dev, MT_TX_AGG_CNT(0, i));
87 mt76_rr(dev, MT_TX_AGG_CNT(1, i));
88 }
89
90 memset(dev->mt76.aggr_stats, 0, sizeof(dev->mt76.aggr_stats));
91 dev->mt76.phy.survey_time = ktime_get_boottime();
92 if (dev->mt76.phy2)
93 dev->mt76.phy2->survey_time = ktime_get_boottime();
94
95 /* reset airtime counters */
96 mt76_rr(dev, MT_MIB_SDR9(0));
97 mt76_rr(dev, MT_MIB_SDR9(1));
98
99 mt76_rr(dev, MT_MIB_SDR36(0));
100 mt76_rr(dev, MT_MIB_SDR36(1));
101
102 mt76_rr(dev, MT_MIB_SDR37(0));
103 mt76_rr(dev, MT_MIB_SDR37(1));
104
105 mt76_set(dev, MT_WF_RMAC_MIB_TIME0, MT_WF_RMAC_MIB_RXTIME_CLR);
106 mt76_set(dev, MT_WF_RMAC_MIB_AIRTIME0, MT_WF_RMAC_MIB_RXTIME_CLR);
107 }
108
mt7615_mac_set_timing(struct mt7615_phy * phy)109 void mt7615_mac_set_timing(struct mt7615_phy *phy)
110 {
111 s16 coverage_class = phy->coverage_class;
112 struct mt7615_dev *dev = phy->dev;
113 bool ext_phy = phy != &dev->phy;
114 u32 val, reg_offset;
115 u32 cck = FIELD_PREP(MT_TIMEOUT_VAL_PLCP, 231) |
116 FIELD_PREP(MT_TIMEOUT_VAL_CCA, 48);
117 u32 ofdm = FIELD_PREP(MT_TIMEOUT_VAL_PLCP, 60) |
118 FIELD_PREP(MT_TIMEOUT_VAL_CCA, 28);
119 int sifs, offset;
120 bool is_5ghz = phy->mt76->chandef.chan->band == NL80211_BAND_5GHZ;
121
122 if (!test_bit(MT76_STATE_RUNNING, &phy->mt76->state))
123 return;
124
125 if (is_5ghz)
126 sifs = 16;
127 else
128 sifs = 10;
129
130 if (ext_phy) {
131 coverage_class = max_t(s16, dev->phy.coverage_class,
132 coverage_class);
133 mt76_set(dev, MT_ARB_SCR,
134 MT_ARB_SCR_TX1_DISABLE | MT_ARB_SCR_RX1_DISABLE);
135 } else {
136 struct mt7615_phy *phy_ext = mt7615_ext_phy(dev);
137
138 if (phy_ext)
139 coverage_class = max_t(s16, phy_ext->coverage_class,
140 coverage_class);
141 mt76_set(dev, MT_ARB_SCR,
142 MT_ARB_SCR_TX0_DISABLE | MT_ARB_SCR_RX0_DISABLE);
143 }
144 udelay(1);
145
146 offset = 3 * coverage_class;
147 reg_offset = FIELD_PREP(MT_TIMEOUT_VAL_PLCP, offset) |
148 FIELD_PREP(MT_TIMEOUT_VAL_CCA, offset);
149 mt76_wr(dev, MT_TMAC_CDTR, cck + reg_offset);
150 mt76_wr(dev, MT_TMAC_ODTR, ofdm + reg_offset);
151
152 mt76_wr(dev, MT_TMAC_ICR(ext_phy),
153 FIELD_PREP(MT_IFS_EIFS, 360) |
154 FIELD_PREP(MT_IFS_RIFS, 2) |
155 FIELD_PREP(MT_IFS_SIFS, sifs) |
156 FIELD_PREP(MT_IFS_SLOT, phy->slottime));
157
158 if (phy->slottime < 20 || is_5ghz)
159 val = MT7615_CFEND_RATE_DEFAULT;
160 else
161 val = MT7615_CFEND_RATE_11B;
162
163 mt76_rmw_field(dev, MT_AGG_ACR(ext_phy), MT_AGG_ACR_CFEND_RATE, val);
164 if (ext_phy)
165 mt76_clear(dev, MT_ARB_SCR,
166 MT_ARB_SCR_TX1_DISABLE | MT_ARB_SCR_RX1_DISABLE);
167 else
168 mt76_clear(dev, MT_ARB_SCR,
169 MT_ARB_SCR_TX0_DISABLE | MT_ARB_SCR_RX0_DISABLE);
170
171 }
172
173 static void
mt7615_get_status_freq_info(struct mt7615_dev * dev,struct mt76_phy * mphy,struct mt76_rx_status * status,u8 chfreq)174 mt7615_get_status_freq_info(struct mt7615_dev *dev, struct mt76_phy *mphy,
175 struct mt76_rx_status *status, u8 chfreq)
176 {
177 if (!test_bit(MT76_HW_SCANNING, &mphy->state) &&
178 !test_bit(MT76_HW_SCHED_SCANNING, &mphy->state) &&
179 !test_bit(MT76_STATE_ROC, &mphy->state)) {
180 status->freq = mphy->chandef.chan->center_freq;
181 status->band = mphy->chandef.chan->band;
182 return;
183 }
184
185 status->band = chfreq <= 14 ? NL80211_BAND_2GHZ : NL80211_BAND_5GHZ;
186 status->freq = ieee80211_channel_to_frequency(chfreq, status->band);
187 }
188
mt7615_mac_fill_tm_rx(struct mt7615_dev * dev,__le32 * rxv)189 static void mt7615_mac_fill_tm_rx(struct mt7615_dev *dev, __le32 *rxv)
190 {
191 #ifdef CONFIG_NL80211_TESTMODE
192 u32 rxv1 = le32_to_cpu(rxv[0]);
193 u32 rxv3 = le32_to_cpu(rxv[2]);
194 u32 rxv4 = le32_to_cpu(rxv[3]);
195 u32 rxv5 = le32_to_cpu(rxv[4]);
196 u8 cbw = FIELD_GET(MT_RXV1_FRAME_MODE, rxv1);
197 u8 mode = FIELD_GET(MT_RXV1_TX_MODE, rxv1);
198 s16 foe = FIELD_GET(MT_RXV5_FOE, rxv5);
199 u32 foe_const = (BIT(cbw + 1) & 0xf) * 10000;
200
201 if (!mode) {
202 /* CCK */
203 foe &= ~BIT(11);
204 foe *= 1000;
205 foe >>= 11;
206 } else {
207 if (foe > 2048)
208 foe -= 4096;
209
210 foe = (foe * foe_const) >> 15;
211 }
212
213 dev->test.last_freq_offset = foe;
214 dev->test.last_rcpi[0] = FIELD_GET(MT_RXV4_RCPI0, rxv4);
215 dev->test.last_rcpi[1] = FIELD_GET(MT_RXV4_RCPI1, rxv4);
216 dev->test.last_rcpi[2] = FIELD_GET(MT_RXV4_RCPI2, rxv4);
217 dev->test.last_rcpi[3] = FIELD_GET(MT_RXV4_RCPI3, rxv4);
218 dev->test.last_ib_rssi = FIELD_GET(MT_RXV3_IB_RSSI, rxv3);
219 dev->test.last_wb_rssi = FIELD_GET(MT_RXV3_WB_RSSI, rxv3);
220 #endif
221 }
222
mt7615_mac_fill_rx(struct mt7615_dev * dev,struct sk_buff * skb)223 static int mt7615_mac_fill_rx(struct mt7615_dev *dev, struct sk_buff *skb)
224 {
225 struct mt76_rx_status *status = (struct mt76_rx_status *)skb->cb;
226 struct mt76_phy *mphy = &dev->mt76.phy;
227 struct mt7615_phy *phy = &dev->phy;
228 struct mt7615_phy *phy2 = dev->mt76.phy2 ? dev->mt76.phy2->priv : NULL;
229 struct ieee80211_supported_band *sband;
230 struct ieee80211_hdr *hdr;
231 __le32 *rxd = (__le32 *)skb->data;
232 u32 rxd0 = le32_to_cpu(rxd[0]);
233 u32 rxd1 = le32_to_cpu(rxd[1]);
234 u32 rxd2 = le32_to_cpu(rxd[2]);
235 __le32 rxd12 = rxd[12];
236 bool unicast, remove_pad, insert_ccmp_hdr = false;
237 int phy_idx;
238 int i, idx;
239 u8 chfreq;
240
241 memset(status, 0, sizeof(*status));
242
243 chfreq = FIELD_GET(MT_RXD1_NORMAL_CH_FREQ, rxd1);
244 if (!phy2)
245 phy_idx = 0;
246 else if (phy2->chfreq == phy->chfreq)
247 phy_idx = -1;
248 else if (phy->chfreq == chfreq)
249 phy_idx = 0;
250 else if (phy2->chfreq == chfreq)
251 phy_idx = 1;
252 else
253 phy_idx = -1;
254
255 unicast = (rxd1 & MT_RXD1_NORMAL_ADDR_TYPE) == MT_RXD1_NORMAL_U2M;
256 idx = FIELD_GET(MT_RXD2_NORMAL_WLAN_IDX, rxd2);
257 status->wcid = mt7615_rx_get_wcid(dev, idx, unicast);
258
259 if (status->wcid) {
260 struct mt7615_sta *msta;
261
262 msta = container_of(status->wcid, struct mt7615_sta, wcid);
263 spin_lock_bh(&dev->sta_poll_lock);
264 if (list_empty(&msta->poll_list))
265 list_add_tail(&msta->poll_list, &dev->sta_poll_list);
266 spin_unlock_bh(&dev->sta_poll_lock);
267 }
268
269 if (rxd2 & MT_RXD2_NORMAL_FCS_ERR)
270 status->flag |= RX_FLAG_FAILED_FCS_CRC;
271
272 if (rxd2 & MT_RXD2_NORMAL_TKIP_MIC_ERR)
273 status->flag |= RX_FLAG_MMIC_ERROR;
274
275 if (FIELD_GET(MT_RXD2_NORMAL_SEC_MODE, rxd2) != 0 &&
276 !(rxd2 & (MT_RXD2_NORMAL_CLM | MT_RXD2_NORMAL_CM))) {
277 status->flag |= RX_FLAG_DECRYPTED;
278 status->flag |= RX_FLAG_IV_STRIPPED;
279 status->flag |= RX_FLAG_MMIC_STRIPPED | RX_FLAG_MIC_STRIPPED;
280 }
281
282 remove_pad = rxd1 & MT_RXD1_NORMAL_HDR_OFFSET;
283
284 if (rxd2 & MT_RXD2_NORMAL_MAX_LEN_ERROR)
285 return -EINVAL;
286
287 rxd += 4;
288 if (rxd0 & MT_RXD0_NORMAL_GROUP_4) {
289 rxd += 4;
290 if ((u8 *)rxd - skb->data >= skb->len)
291 return -EINVAL;
292 }
293
294 if (rxd0 & MT_RXD0_NORMAL_GROUP_1) {
295 u8 *data = (u8 *)rxd;
296
297 if (status->flag & RX_FLAG_DECRYPTED) {
298 status->iv[0] = data[5];
299 status->iv[1] = data[4];
300 status->iv[2] = data[3];
301 status->iv[3] = data[2];
302 status->iv[4] = data[1];
303 status->iv[5] = data[0];
304
305 insert_ccmp_hdr = FIELD_GET(MT_RXD2_NORMAL_FRAG, rxd2);
306 }
307 rxd += 4;
308 if ((u8 *)rxd - skb->data >= skb->len)
309 return -EINVAL;
310 }
311
312 if (rxd0 & MT_RXD0_NORMAL_GROUP_2) {
313 rxd += 2;
314 if ((u8 *)rxd - skb->data >= skb->len)
315 return -EINVAL;
316 }
317
318 if (rxd0 & MT_RXD0_NORMAL_GROUP_3) {
319 u32 rxdg5 = le32_to_cpu(rxd[5]);
320
321 /*
322 * If both PHYs are on the same channel and we don't have a WCID,
323 * we need to figure out which PHY this packet was received on.
324 * On the primary PHY, the noise value for the chains belonging to the
325 * second PHY will be set to the noise value of the last packet from
326 * that PHY.
327 */
328 if (phy_idx < 0) {
329 int first_chain = ffs(phy2->chainmask) - 1;
330
331 phy_idx = ((rxdg5 >> (first_chain * 8)) & 0xff) == 0;
332 }
333 }
334
335 if (phy_idx == 1 && phy2) {
336 mphy = dev->mt76.phy2;
337 phy = phy2;
338 status->ext_phy = true;
339 }
340
341 if (!mt7615_firmware_offload(dev) && chfreq != phy->chfreq)
342 return -EINVAL;
343
344 mt7615_get_status_freq_info(dev, mphy, status, chfreq);
345 if (status->band == NL80211_BAND_5GHZ)
346 sband = &mphy->sband_5g.sband;
347 else
348 sband = &mphy->sband_2g.sband;
349
350 if (!test_bit(MT76_STATE_RUNNING, &mphy->state))
351 return -EINVAL;
352
353 if (!sband->channels)
354 return -EINVAL;
355
356 if (!(rxd2 & (MT_RXD2_NORMAL_NON_AMPDU_SUB |
357 MT_RXD2_NORMAL_NON_AMPDU))) {
358 status->flag |= RX_FLAG_AMPDU_DETAILS;
359
360 /* all subframes of an A-MPDU have the same timestamp */
361 if (phy->rx_ampdu_ts != rxd12) {
362 if (!++phy->ampdu_ref)
363 phy->ampdu_ref++;
364 }
365 phy->rx_ampdu_ts = rxd12;
366
367 status->ampdu_ref = phy->ampdu_ref;
368 }
369
370 if (rxd0 & MT_RXD0_NORMAL_GROUP_3) {
371 u32 rxdg0 = le32_to_cpu(rxd[0]);
372 u32 rxdg1 = le32_to_cpu(rxd[1]);
373 u32 rxdg3 = le32_to_cpu(rxd[3]);
374 u8 stbc = FIELD_GET(MT_RXV1_HT_STBC, rxdg0);
375 bool cck = false;
376
377 i = FIELD_GET(MT_RXV1_TX_RATE, rxdg0);
378 switch (FIELD_GET(MT_RXV1_TX_MODE, rxdg0)) {
379 case MT_PHY_TYPE_CCK:
380 cck = true;
381 fallthrough;
382 case MT_PHY_TYPE_OFDM:
383 i = mt76_get_rate(&dev->mt76, sband, i, cck);
384 break;
385 case MT_PHY_TYPE_HT_GF:
386 case MT_PHY_TYPE_HT:
387 status->encoding = RX_ENC_HT;
388 if (i > 31)
389 return -EINVAL;
390 break;
391 case MT_PHY_TYPE_VHT:
392 status->nss = FIELD_GET(MT_RXV2_NSTS, rxdg1) + 1;
393 status->encoding = RX_ENC_VHT;
394 break;
395 default:
396 return -EINVAL;
397 }
398 status->rate_idx = i;
399
400 switch (FIELD_GET(MT_RXV1_FRAME_MODE, rxdg0)) {
401 case MT_PHY_BW_20:
402 break;
403 case MT_PHY_BW_40:
404 status->bw = RATE_INFO_BW_40;
405 break;
406 case MT_PHY_BW_80:
407 status->bw = RATE_INFO_BW_80;
408 break;
409 case MT_PHY_BW_160:
410 status->bw = RATE_INFO_BW_160;
411 break;
412 default:
413 return -EINVAL;
414 }
415
416 if (rxdg0 & MT_RXV1_HT_SHORT_GI)
417 status->enc_flags |= RX_ENC_FLAG_SHORT_GI;
418 if (rxdg0 & MT_RXV1_HT_AD_CODE)
419 status->enc_flags |= RX_ENC_FLAG_LDPC;
420
421 status->enc_flags |= RX_ENC_FLAG_STBC_MASK * stbc;
422
423 status->chains = mphy->antenna_mask;
424 status->chain_signal[0] = to_rssi(MT_RXV4_RCPI0, rxdg3);
425 status->chain_signal[1] = to_rssi(MT_RXV4_RCPI1, rxdg3);
426 status->chain_signal[2] = to_rssi(MT_RXV4_RCPI2, rxdg3);
427 status->chain_signal[3] = to_rssi(MT_RXV4_RCPI3, rxdg3);
428 status->signal = status->chain_signal[0];
429
430 for (i = 1; i < hweight8(mphy->antenna_mask); i++) {
431 if (!(status->chains & BIT(i)))
432 continue;
433
434 status->signal = max(status->signal,
435 status->chain_signal[i]);
436 }
437
438 mt7615_mac_fill_tm_rx(dev, rxd);
439
440 rxd += 6;
441 if ((u8 *)rxd - skb->data >= skb->len)
442 return -EINVAL;
443 }
444
445 skb_pull(skb, (u8 *)rxd - skb->data + 2 * remove_pad);
446
447 if (insert_ccmp_hdr) {
448 u8 key_id = FIELD_GET(MT_RXD1_NORMAL_KEY_ID, rxd1);
449
450 mt76_insert_ccmp_hdr(skb, key_id);
451 }
452
453 hdr = (struct ieee80211_hdr *)skb->data;
454 if (!status->wcid || !ieee80211_is_data_qos(hdr->frame_control))
455 return 0;
456
457 status->aggr = unicast &&
458 !ieee80211_is_qos_nullfunc(hdr->frame_control);
459 status->tid = *ieee80211_get_qos_ctl(hdr) & IEEE80211_QOS_CTL_TID_MASK;
460 status->seqno = IEEE80211_SEQ_TO_SN(le16_to_cpu(hdr->seq_ctrl));
461
462 return 0;
463 }
464
mt7615_sta_ps(struct mt76_dev * mdev,struct ieee80211_sta * sta,bool ps)465 void mt7615_sta_ps(struct mt76_dev *mdev, struct ieee80211_sta *sta, bool ps)
466 {
467 }
468 EXPORT_SYMBOL_GPL(mt7615_sta_ps);
469
470 static u16
mt7615_mac_tx_rate_val(struct mt7615_dev * dev,struct mt76_phy * mphy,const struct ieee80211_tx_rate * rate,bool stbc,u8 * bw)471 mt7615_mac_tx_rate_val(struct mt7615_dev *dev,
472 struct mt76_phy *mphy,
473 const struct ieee80211_tx_rate *rate,
474 bool stbc, u8 *bw)
475 {
476 u8 phy, nss, rate_idx;
477 u16 rateval = 0;
478
479 *bw = 0;
480
481 if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
482 rate_idx = ieee80211_rate_get_vht_mcs(rate);
483 nss = ieee80211_rate_get_vht_nss(rate);
484 phy = MT_PHY_TYPE_VHT;
485 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
486 *bw = 1;
487 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
488 *bw = 2;
489 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
490 *bw = 3;
491 } else if (rate->flags & IEEE80211_TX_RC_MCS) {
492 rate_idx = rate->idx;
493 nss = 1 + (rate->idx >> 3);
494 phy = MT_PHY_TYPE_HT;
495 if (rate->flags & IEEE80211_TX_RC_GREEN_FIELD)
496 phy = MT_PHY_TYPE_HT_GF;
497 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
498 *bw = 1;
499 } else {
500 const struct ieee80211_rate *r;
501 int band = mphy->chandef.chan->band;
502 u16 val;
503
504 nss = 1;
505 r = &mphy->hw->wiphy->bands[band]->bitrates[rate->idx];
506 if (rate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
507 val = r->hw_value_short;
508 else
509 val = r->hw_value;
510
511 phy = val >> 8;
512 rate_idx = val & 0xff;
513 }
514
515 if (stbc && nss == 1) {
516 nss++;
517 rateval |= MT_TX_RATE_STBC;
518 }
519
520 rateval |= (FIELD_PREP(MT_TX_RATE_IDX, rate_idx) |
521 FIELD_PREP(MT_TX_RATE_MODE, phy) |
522 FIELD_PREP(MT_TX_RATE_NSS, nss - 1));
523
524 return rateval;
525 }
526
mt7615_mac_write_txwi(struct mt7615_dev * dev,__le32 * txwi,struct sk_buff * skb,struct mt76_wcid * wcid,struct ieee80211_sta * sta,int pid,struct ieee80211_key_conf * key,bool beacon)527 int mt7615_mac_write_txwi(struct mt7615_dev *dev, __le32 *txwi,
528 struct sk_buff *skb, struct mt76_wcid *wcid,
529 struct ieee80211_sta *sta, int pid,
530 struct ieee80211_key_conf *key, bool beacon)
531 {
532 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
533 u8 fc_type, fc_stype, p_fmt, q_idx, omac_idx = 0, wmm_idx = 0;
534 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
535 struct ieee80211_tx_rate *rate = &info->control.rates[0];
536 bool ext_phy = info->hw_queue & MT_TX_HW_QUEUE_EXT_PHY;
537 bool multicast = is_multicast_ether_addr(hdr->addr1);
538 struct ieee80211_vif *vif = info->control.vif;
539 bool is_mmio = mt76_is_mmio(&dev->mt76);
540 u32 val, sz_txd = is_mmio ? MT_TXD_SIZE : MT_USB_TXD_SIZE;
541 struct mt76_phy *mphy = &dev->mphy;
542 __le16 fc = hdr->frame_control;
543 int tx_count = 8;
544 u16 seqno = 0;
545
546 if (vif) {
547 struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv;
548
549 omac_idx = mvif->omac_idx;
550 wmm_idx = mvif->wmm_idx;
551 }
552
553 if (sta) {
554 struct mt7615_sta *msta = (struct mt7615_sta *)sta->drv_priv;
555
556 tx_count = msta->rate_count;
557 }
558
559 if (ext_phy && dev->mt76.phy2)
560 mphy = dev->mt76.phy2;
561
562 fc_type = (le16_to_cpu(fc) & IEEE80211_FCTL_FTYPE) >> 2;
563 fc_stype = (le16_to_cpu(fc) & IEEE80211_FCTL_STYPE) >> 4;
564
565 if (beacon) {
566 p_fmt = MT_TX_TYPE_FW;
567 q_idx = ext_phy ? MT_LMAC_BCN1 : MT_LMAC_BCN0;
568 } else if (skb_get_queue_mapping(skb) >= MT_TXQ_PSD) {
569 p_fmt = is_mmio ? MT_TX_TYPE_CT : MT_TX_TYPE_SF;
570 q_idx = ext_phy ? MT_LMAC_ALTX1 : MT_LMAC_ALTX0;
571 } else {
572 p_fmt = is_mmio ? MT_TX_TYPE_CT : MT_TX_TYPE_SF;
573 q_idx = wmm_idx * MT7615_MAX_WMM_SETS +
574 mt7615_lmac_mapping(dev, skb_get_queue_mapping(skb));
575 }
576
577 val = FIELD_PREP(MT_TXD0_TX_BYTES, skb->len + sz_txd) |
578 FIELD_PREP(MT_TXD0_P_IDX, MT_TX_PORT_IDX_LMAC) |
579 FIELD_PREP(MT_TXD0_Q_IDX, q_idx);
580 txwi[0] = cpu_to_le32(val);
581
582 val = MT_TXD1_LONG_FORMAT |
583 FIELD_PREP(MT_TXD1_WLAN_IDX, wcid->idx) |
584 FIELD_PREP(MT_TXD1_HDR_FORMAT, MT_HDR_FORMAT_802_11) |
585 FIELD_PREP(MT_TXD1_HDR_INFO,
586 ieee80211_get_hdrlen_from_skb(skb) / 2) |
587 FIELD_PREP(MT_TXD1_TID,
588 skb->priority & IEEE80211_QOS_CTL_TID_MASK) |
589 FIELD_PREP(MT_TXD1_PKT_FMT, p_fmt) |
590 FIELD_PREP(MT_TXD1_OWN_MAC, omac_idx);
591 txwi[1] = cpu_to_le32(val);
592
593 val = FIELD_PREP(MT_TXD2_FRAME_TYPE, fc_type) |
594 FIELD_PREP(MT_TXD2_SUB_TYPE, fc_stype) |
595 FIELD_PREP(MT_TXD2_MULTICAST, multicast);
596 if (key) {
597 if (multicast && ieee80211_is_robust_mgmt_frame(skb) &&
598 key->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
599 val |= MT_TXD2_BIP;
600 txwi[3] = 0;
601 } else {
602 txwi[3] = cpu_to_le32(MT_TXD3_PROTECT_FRAME);
603 }
604 } else {
605 txwi[3] = 0;
606 }
607 txwi[2] = cpu_to_le32(val);
608
609 if (!(info->flags & IEEE80211_TX_CTL_AMPDU))
610 txwi[2] |= cpu_to_le32(MT_TXD2_BA_DISABLE);
611
612 txwi[4] = 0;
613 txwi[6] = 0;
614
615 if (rate->idx >= 0 && rate->count &&
616 !(info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE)) {
617 bool stbc = info->flags & IEEE80211_TX_CTL_STBC;
618 u8 bw;
619 u16 rateval = mt7615_mac_tx_rate_val(dev, mphy, rate, stbc,
620 &bw);
621
622 txwi[2] |= cpu_to_le32(MT_TXD2_FIX_RATE);
623
624 val = MT_TXD6_FIXED_BW |
625 FIELD_PREP(MT_TXD6_BW, bw) |
626 FIELD_PREP(MT_TXD6_TX_RATE, rateval);
627 txwi[6] |= cpu_to_le32(val);
628
629 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
630 txwi[6] |= cpu_to_le32(MT_TXD6_SGI);
631
632 if (info->flags & IEEE80211_TX_CTL_LDPC)
633 txwi[6] |= cpu_to_le32(MT_TXD6_LDPC);
634
635 if (!(rate->flags & (IEEE80211_TX_RC_MCS |
636 IEEE80211_TX_RC_VHT_MCS)))
637 txwi[2] |= cpu_to_le32(MT_TXD2_BA_DISABLE);
638
639 tx_count = rate->count;
640 }
641
642 if (!ieee80211_is_beacon(fc)) {
643 struct ieee80211_hw *hw = mt76_hw(dev);
644
645 val = MT_TXD5_TX_STATUS_HOST | FIELD_PREP(MT_TXD5_PID, pid);
646 if (!ieee80211_hw_check(hw, SUPPORTS_PS))
647 val |= MT_TXD5_SW_POWER_MGMT;
648 txwi[5] = cpu_to_le32(val);
649 } else {
650 txwi[5] = 0;
651 /* use maximum tx count for beacons */
652 tx_count = 0x1f;
653 }
654
655 val = FIELD_PREP(MT_TXD3_REM_TX_COUNT, tx_count);
656 if (info->flags & IEEE80211_TX_CTL_INJECTED) {
657 seqno = le16_to_cpu(hdr->seq_ctrl);
658
659 if (ieee80211_is_back_req(hdr->frame_control)) {
660 struct ieee80211_bar *bar;
661
662 bar = (struct ieee80211_bar *)skb->data;
663 seqno = le16_to_cpu(bar->start_seq_num);
664 }
665
666 val |= MT_TXD3_SN_VALID |
667 FIELD_PREP(MT_TXD3_SEQ, IEEE80211_SEQ_TO_SN(seqno));
668 }
669
670 txwi[3] |= cpu_to_le32(val);
671
672 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
673 txwi[3] |= cpu_to_le32(MT_TXD3_NO_ACK);
674
675 txwi[7] = FIELD_PREP(MT_TXD7_TYPE, fc_type) |
676 FIELD_PREP(MT_TXD7_SUB_TYPE, fc_stype) |
677 FIELD_PREP(MT_TXD7_SPE_IDX, 0x18);
678 if (!is_mmio)
679 txwi[8] = FIELD_PREP(MT_TXD8_L_TYPE, fc_type) |
680 FIELD_PREP(MT_TXD8_L_SUB_TYPE, fc_stype);
681
682 return 0;
683 }
684 EXPORT_SYMBOL_GPL(mt7615_mac_write_txwi);
685
686 static void
mt7615_txp_skb_unmap_fw(struct mt76_dev * dev,struct mt7615_fw_txp * txp)687 mt7615_txp_skb_unmap_fw(struct mt76_dev *dev, struct mt7615_fw_txp *txp)
688 {
689 int i;
690
691 for (i = 1; i < txp->nbuf; i++)
692 dma_unmap_single(dev->dev, le32_to_cpu(txp->buf[i]),
693 le16_to_cpu(txp->len[i]), DMA_TO_DEVICE);
694 }
695
696 static void
mt7615_txp_skb_unmap_hw(struct mt76_dev * dev,struct mt7615_hw_txp * txp)697 mt7615_txp_skb_unmap_hw(struct mt76_dev *dev, struct mt7615_hw_txp *txp)
698 {
699 u32 last_mask;
700 int i;
701
702 last_mask = is_mt7663(dev) ? MT_TXD_LEN_LAST : MT_TXD_LEN_MSDU_LAST;
703
704 for (i = 0; i < ARRAY_SIZE(txp->ptr); i++) {
705 struct mt7615_txp_ptr *ptr = &txp->ptr[i];
706 bool last;
707 u16 len;
708
709 len = le16_to_cpu(ptr->len0);
710 last = len & last_mask;
711 len &= MT_TXD_LEN_MASK;
712 dma_unmap_single(dev->dev, le32_to_cpu(ptr->buf0), len,
713 DMA_TO_DEVICE);
714 if (last)
715 break;
716
717 len = le16_to_cpu(ptr->len1);
718 last = len & last_mask;
719 len &= MT_TXD_LEN_MASK;
720 dma_unmap_single(dev->dev, le32_to_cpu(ptr->buf1), len,
721 DMA_TO_DEVICE);
722 if (last)
723 break;
724 }
725 }
726
mt7615_txp_skb_unmap(struct mt76_dev * dev,struct mt76_txwi_cache * t)727 void mt7615_txp_skb_unmap(struct mt76_dev *dev,
728 struct mt76_txwi_cache *t)
729 {
730 struct mt7615_txp_common *txp;
731
732 txp = mt7615_txwi_to_txp(dev, t);
733 if (is_mt7615(dev))
734 mt7615_txp_skb_unmap_fw(dev, &txp->fw);
735 else
736 mt7615_txp_skb_unmap_hw(dev, &txp->hw);
737 }
738 EXPORT_SYMBOL_GPL(mt7615_txp_skb_unmap);
739
mt7615_mac_wtbl_update(struct mt7615_dev * dev,int idx,u32 mask)740 bool mt7615_mac_wtbl_update(struct mt7615_dev *dev, int idx, u32 mask)
741 {
742 mt76_rmw(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_WLAN_IDX,
743 FIELD_PREP(MT_WTBL_UPDATE_WLAN_IDX, idx) | mask);
744
745 return mt76_poll(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_BUSY,
746 0, 5000);
747 }
748
mt7615_mac_sta_poll(struct mt7615_dev * dev)749 void mt7615_mac_sta_poll(struct mt7615_dev *dev)
750 {
751 static const u8 ac_to_tid[4] = {
752 [IEEE80211_AC_BE] = 0,
753 [IEEE80211_AC_BK] = 1,
754 [IEEE80211_AC_VI] = 4,
755 [IEEE80211_AC_VO] = 6
756 };
757 static const u8 hw_queue_map[] = {
758 [IEEE80211_AC_BK] = 0,
759 [IEEE80211_AC_BE] = 1,
760 [IEEE80211_AC_VI] = 2,
761 [IEEE80211_AC_VO] = 3,
762 };
763 struct ieee80211_sta *sta;
764 struct mt7615_sta *msta;
765 u32 addr, tx_time[4], rx_time[4];
766 struct list_head sta_poll_list;
767 int i;
768
769 INIT_LIST_HEAD(&sta_poll_list);
770 spin_lock_bh(&dev->sta_poll_lock);
771 list_splice_init(&dev->sta_poll_list, &sta_poll_list);
772 spin_unlock_bh(&dev->sta_poll_lock);
773
774 while (!list_empty(&sta_poll_list)) {
775 bool clear = false;
776
777 msta = list_first_entry(&sta_poll_list, struct mt7615_sta,
778 poll_list);
779 list_del_init(&msta->poll_list);
780
781 addr = mt7615_mac_wtbl_addr(dev, msta->wcid.idx) + 19 * 4;
782
783 for (i = 0; i < 4; i++, addr += 8) {
784 u32 tx_last = msta->airtime_ac[i];
785 u32 rx_last = msta->airtime_ac[i + 4];
786
787 msta->airtime_ac[i] = mt76_rr(dev, addr);
788 msta->airtime_ac[i + 4] = mt76_rr(dev, addr + 4);
789 tx_time[i] = msta->airtime_ac[i] - tx_last;
790 rx_time[i] = msta->airtime_ac[i + 4] - rx_last;
791
792 if ((tx_last | rx_last) & BIT(30))
793 clear = true;
794 }
795
796 if (clear) {
797 mt7615_mac_wtbl_update(dev, msta->wcid.idx,
798 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
799 memset(msta->airtime_ac, 0, sizeof(msta->airtime_ac));
800 }
801
802 if (!msta->wcid.sta)
803 continue;
804
805 sta = container_of((void *)msta, struct ieee80211_sta,
806 drv_priv);
807 for (i = 0; i < 4; i++) {
808 u32 tx_cur = tx_time[i];
809 u32 rx_cur = rx_time[hw_queue_map[i]];
810 u8 tid = ac_to_tid[i];
811
812 if (!tx_cur && !rx_cur)
813 continue;
814
815 ieee80211_sta_register_airtime(sta, tid, tx_cur,
816 rx_cur);
817 }
818 }
819 }
820 EXPORT_SYMBOL_GPL(mt7615_mac_sta_poll);
821
822 static void
mt7615_mac_update_rate_desc(struct mt7615_phy * phy,struct mt7615_sta * sta,struct ieee80211_tx_rate * probe_rate,struct ieee80211_tx_rate * rates,struct mt7615_rate_desc * rd)823 mt7615_mac_update_rate_desc(struct mt7615_phy *phy, struct mt7615_sta *sta,
824 struct ieee80211_tx_rate *probe_rate,
825 struct ieee80211_tx_rate *rates,
826 struct mt7615_rate_desc *rd)
827 {
828 struct mt7615_dev *dev = phy->dev;
829 struct mt76_phy *mphy = phy->mt76;
830 struct ieee80211_tx_rate *ref;
831 bool rateset, stbc = false;
832 int n_rates = sta->n_rates;
833 u8 bw, bw_prev;
834 int i, j;
835
836 for (i = n_rates; i < 4; i++)
837 rates[i] = rates[n_rates - 1];
838
839 rateset = !(sta->rate_set_tsf & BIT(0));
840 memcpy(sta->rateset[rateset].rates, rates,
841 sizeof(sta->rateset[rateset].rates));
842 if (probe_rate) {
843 sta->rateset[rateset].probe_rate = *probe_rate;
844 ref = &sta->rateset[rateset].probe_rate;
845 } else {
846 sta->rateset[rateset].probe_rate.idx = -1;
847 ref = &sta->rateset[rateset].rates[0];
848 }
849
850 rates = sta->rateset[rateset].rates;
851 for (i = 0; i < ARRAY_SIZE(sta->rateset[rateset].rates); i++) {
852 /*
853 * We don't support switching between short and long GI
854 * within the rate set. For accurate tx status reporting, we
855 * need to make sure that flags match.
856 * For improved performance, avoid duplicate entries by
857 * decrementing the MCS index if necessary
858 */
859 if ((ref->flags ^ rates[i].flags) & IEEE80211_TX_RC_SHORT_GI)
860 rates[i].flags ^= IEEE80211_TX_RC_SHORT_GI;
861
862 for (j = 0; j < i; j++) {
863 if (rates[i].idx != rates[j].idx)
864 continue;
865 if ((rates[i].flags ^ rates[j].flags) &
866 (IEEE80211_TX_RC_40_MHZ_WIDTH |
867 IEEE80211_TX_RC_80_MHZ_WIDTH |
868 IEEE80211_TX_RC_160_MHZ_WIDTH))
869 continue;
870
871 if (!rates[i].idx)
872 continue;
873
874 rates[i].idx--;
875 }
876 }
877
878 rd->val[0] = mt7615_mac_tx_rate_val(dev, mphy, &rates[0], stbc, &bw);
879 bw_prev = bw;
880
881 if (probe_rate) {
882 rd->probe_val = mt7615_mac_tx_rate_val(dev, mphy, probe_rate,
883 stbc, &bw);
884 if (bw)
885 rd->bw_idx = 1;
886 else
887 bw_prev = 0;
888 } else {
889 rd->probe_val = rd->val[0];
890 }
891
892 rd->val[1] = mt7615_mac_tx_rate_val(dev, mphy, &rates[1], stbc, &bw);
893 if (bw_prev) {
894 rd->bw_idx = 3;
895 bw_prev = bw;
896 }
897
898 rd->val[2] = mt7615_mac_tx_rate_val(dev, mphy, &rates[2], stbc, &bw);
899 if (bw_prev) {
900 rd->bw_idx = 5;
901 bw_prev = bw;
902 }
903
904 rd->val[3] = mt7615_mac_tx_rate_val(dev, mphy, &rates[3], stbc, &bw);
905 if (bw_prev)
906 rd->bw_idx = 7;
907
908 rd->rateset = rateset;
909 rd->bw = bw;
910 }
911
912 static int
mt7615_mac_queue_rate_update(struct mt7615_phy * phy,struct mt7615_sta * sta,struct ieee80211_tx_rate * probe_rate,struct ieee80211_tx_rate * rates)913 mt7615_mac_queue_rate_update(struct mt7615_phy *phy, struct mt7615_sta *sta,
914 struct ieee80211_tx_rate *probe_rate,
915 struct ieee80211_tx_rate *rates)
916 {
917 struct mt7615_dev *dev = phy->dev;
918 struct mt7615_wtbl_desc *wd;
919
920 if (work_pending(&dev->wtbl_work))
921 return -EBUSY;
922
923 wd = kzalloc(sizeof(*wd), GFP_ATOMIC);
924 if (!wd)
925 return -ENOMEM;
926
927 wd->type = MT7615_WTBL_RATE_DESC;
928 wd->sta = sta;
929
930 mt7615_mac_update_rate_desc(phy, sta, probe_rate, rates,
931 &wd->rate);
932 list_add_tail(&wd->node, &dev->wd_head);
933 queue_work(dev->mt76.wq, &dev->wtbl_work);
934
935 return 0;
936 }
937
mt7615_mac_get_sta_tid_sn(struct mt7615_dev * dev,int wcid,u8 tid)938 u32 mt7615_mac_get_sta_tid_sn(struct mt7615_dev *dev, int wcid, u8 tid)
939 {
940 u32 addr, val, val2;
941 u8 offset;
942
943 addr = mt7615_mac_wtbl_addr(dev, wcid) + 11 * 4;
944
945 offset = tid * 12;
946 addr += 4 * (offset / 32);
947 offset %= 32;
948
949 val = mt76_rr(dev, addr);
950 val >>= (tid % 32);
951
952 if (offset > 20) {
953 addr += 4;
954 val2 = mt76_rr(dev, addr);
955 val |= val2 << (32 - offset);
956 }
957
958 return val & GENMASK(11, 0);
959 }
960
mt7615_mac_set_rates(struct mt7615_phy * phy,struct mt7615_sta * sta,struct ieee80211_tx_rate * probe_rate,struct ieee80211_tx_rate * rates)961 void mt7615_mac_set_rates(struct mt7615_phy *phy, struct mt7615_sta *sta,
962 struct ieee80211_tx_rate *probe_rate,
963 struct ieee80211_tx_rate *rates)
964 {
965 int wcid = sta->wcid.idx, n_rates = sta->n_rates;
966 struct mt7615_dev *dev = phy->dev;
967 struct mt7615_rate_desc rd;
968 u32 w5, w27, addr;
969
970 if (!mt76_is_mmio(&dev->mt76)) {
971 mt7615_mac_queue_rate_update(phy, sta, probe_rate, rates);
972 return;
973 }
974
975 if (!mt76_poll(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_BUSY, 0, 5000))
976 return;
977
978 memset(&rd, 0, sizeof(struct mt7615_rate_desc));
979 mt7615_mac_update_rate_desc(phy, sta, probe_rate, rates, &rd);
980
981 addr = mt7615_mac_wtbl_addr(dev, wcid);
982 w27 = mt76_rr(dev, addr + 27 * 4);
983 w27 &= ~MT_WTBL_W27_CC_BW_SEL;
984 w27 |= FIELD_PREP(MT_WTBL_W27_CC_BW_SEL, rd.bw);
985
986 w5 = mt76_rr(dev, addr + 5 * 4);
987 w5 &= ~(MT_WTBL_W5_BW_CAP | MT_WTBL_W5_CHANGE_BW_RATE |
988 MT_WTBL_W5_MPDU_OK_COUNT |
989 MT_WTBL_W5_MPDU_FAIL_COUNT |
990 MT_WTBL_W5_RATE_IDX);
991 w5 |= FIELD_PREP(MT_WTBL_W5_BW_CAP, rd.bw) |
992 FIELD_PREP(MT_WTBL_W5_CHANGE_BW_RATE,
993 rd.bw_idx ? rd.bw_idx - 1 : 7);
994
995 mt76_wr(dev, MT_WTBL_RIUCR0, w5);
996
997 mt76_wr(dev, MT_WTBL_RIUCR1,
998 FIELD_PREP(MT_WTBL_RIUCR1_RATE0, rd.probe_val) |
999 FIELD_PREP(MT_WTBL_RIUCR1_RATE1, rd.val[0]) |
1000 FIELD_PREP(MT_WTBL_RIUCR1_RATE2_LO, rd.val[1]));
1001
1002 mt76_wr(dev, MT_WTBL_RIUCR2,
1003 FIELD_PREP(MT_WTBL_RIUCR2_RATE2_HI, rd.val[1] >> 8) |
1004 FIELD_PREP(MT_WTBL_RIUCR2_RATE3, rd.val[1]) |
1005 FIELD_PREP(MT_WTBL_RIUCR2_RATE4, rd.val[2]) |
1006 FIELD_PREP(MT_WTBL_RIUCR2_RATE5_LO, rd.val[2]));
1007
1008 mt76_wr(dev, MT_WTBL_RIUCR3,
1009 FIELD_PREP(MT_WTBL_RIUCR3_RATE5_HI, rd.val[2] >> 4) |
1010 FIELD_PREP(MT_WTBL_RIUCR3_RATE6, rd.val[3]) |
1011 FIELD_PREP(MT_WTBL_RIUCR3_RATE7, rd.val[3]));
1012
1013 mt76_wr(dev, MT_WTBL_UPDATE,
1014 FIELD_PREP(MT_WTBL_UPDATE_WLAN_IDX, wcid) |
1015 MT_WTBL_UPDATE_RATE_UPDATE |
1016 MT_WTBL_UPDATE_TX_COUNT_CLEAR);
1017
1018 mt76_wr(dev, addr + 27 * 4, w27);
1019
1020 mt76_set(dev, MT_LPON_T0CR, MT_LPON_T0CR_MODE); /* TSF read */
1021 sta->rate_set_tsf = mt76_rr(dev, MT_LPON_UTTR0) & ~BIT(0);
1022 sta->rate_set_tsf |= rd.rateset;
1023
1024 if (!(sta->wcid.tx_info & MT_WCID_TX_INFO_SET))
1025 mt76_poll(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_BUSY, 0, 5000);
1026
1027 sta->rate_count = 2 * MT7615_RATE_RETRY * n_rates;
1028 sta->wcid.tx_info |= MT_WCID_TX_INFO_SET;
1029 sta->rate_probe = !!probe_rate;
1030 }
1031 EXPORT_SYMBOL_GPL(mt7615_mac_set_rates);
1032
mt7615_mac_wtbl_update_key(struct mt7615_dev * dev,struct mt76_wcid * wcid,u8 * key,u8 keylen,enum mt7615_cipher_type cipher,enum set_key_cmd cmd)1033 int mt7615_mac_wtbl_update_key(struct mt7615_dev *dev,
1034 struct mt76_wcid *wcid,
1035 u8 *key, u8 keylen,
1036 enum mt7615_cipher_type cipher,
1037 enum set_key_cmd cmd)
1038 {
1039 u32 addr = mt7615_mac_wtbl_addr(dev, wcid->idx) + 30 * 4;
1040 u8 data[32] = {};
1041
1042 if (keylen > sizeof(data))
1043 return -EINVAL;
1044
1045 mt76_rr_copy(dev, addr, data, sizeof(data));
1046 if (cmd == SET_KEY) {
1047 if (cipher == MT_CIPHER_TKIP) {
1048 /* Rx/Tx MIC keys are swapped */
1049 memcpy(data + 16, key + 24, 8);
1050 memcpy(data + 24, key + 16, 8);
1051 }
1052 if (cipher != MT_CIPHER_BIP_CMAC_128 && wcid->cipher)
1053 memmove(data + 16, data, 16);
1054 if (cipher != MT_CIPHER_BIP_CMAC_128 || !wcid->cipher)
1055 memcpy(data, key, keylen);
1056 else if (cipher == MT_CIPHER_BIP_CMAC_128)
1057 memcpy(data + 16, key, 16);
1058 } else {
1059 if (wcid->cipher & ~BIT(cipher)) {
1060 if (cipher != MT_CIPHER_BIP_CMAC_128)
1061 memmove(data, data + 16, 16);
1062 memset(data + 16, 0, 16);
1063 } else {
1064 memset(data, 0, sizeof(data));
1065 }
1066 }
1067 mt76_wr_copy(dev, addr, data, sizeof(data));
1068
1069 return 0;
1070 }
1071 EXPORT_SYMBOL_GPL(mt7615_mac_wtbl_update_key);
1072
mt7615_mac_wtbl_update_pk(struct mt7615_dev * dev,struct mt76_wcid * wcid,enum mt7615_cipher_type cipher,int keyidx,enum set_key_cmd cmd)1073 int mt7615_mac_wtbl_update_pk(struct mt7615_dev *dev,
1074 struct mt76_wcid *wcid,
1075 enum mt7615_cipher_type cipher,
1076 int keyidx, enum set_key_cmd cmd)
1077 {
1078 u32 addr = mt7615_mac_wtbl_addr(dev, wcid->idx), w0, w1;
1079
1080 if (!mt76_poll(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_BUSY, 0, 5000))
1081 return -ETIMEDOUT;
1082
1083 w0 = mt76_rr(dev, addr);
1084 w1 = mt76_rr(dev, addr + 4);
1085 if (cmd == SET_KEY) {
1086 w0 |= MT_WTBL_W0_RX_KEY_VALID |
1087 FIELD_PREP(MT_WTBL_W0_RX_IK_VALID,
1088 cipher == MT_CIPHER_BIP_CMAC_128);
1089 if (cipher != MT_CIPHER_BIP_CMAC_128 ||
1090 !wcid->cipher)
1091 w0 |= FIELD_PREP(MT_WTBL_W0_KEY_IDX, keyidx);
1092 } else {
1093 if (!(wcid->cipher & ~BIT(cipher)))
1094 w0 &= ~(MT_WTBL_W0_RX_KEY_VALID |
1095 MT_WTBL_W0_KEY_IDX);
1096 if (cipher == MT_CIPHER_BIP_CMAC_128)
1097 w0 &= ~MT_WTBL_W0_RX_IK_VALID;
1098 }
1099 mt76_wr(dev, MT_WTBL_RICR0, w0);
1100 mt76_wr(dev, MT_WTBL_RICR1, w1);
1101
1102 if (!mt7615_mac_wtbl_update(dev, wcid->idx,
1103 MT_WTBL_UPDATE_RXINFO_UPDATE))
1104 return -ETIMEDOUT;
1105
1106 return 0;
1107 }
1108 EXPORT_SYMBOL_GPL(mt7615_mac_wtbl_update_pk);
1109
mt7615_mac_wtbl_update_cipher(struct mt7615_dev * dev,struct mt76_wcid * wcid,enum mt7615_cipher_type cipher,enum set_key_cmd cmd)1110 void mt7615_mac_wtbl_update_cipher(struct mt7615_dev *dev,
1111 struct mt76_wcid *wcid,
1112 enum mt7615_cipher_type cipher,
1113 enum set_key_cmd cmd)
1114 {
1115 u32 addr = mt7615_mac_wtbl_addr(dev, wcid->idx);
1116
1117 if (cmd == SET_KEY) {
1118 if (cipher != MT_CIPHER_BIP_CMAC_128 || !wcid->cipher)
1119 mt76_rmw(dev, addr + 2 * 4, MT_WTBL_W2_KEY_TYPE,
1120 FIELD_PREP(MT_WTBL_W2_KEY_TYPE, cipher));
1121 } else {
1122 if (cipher != MT_CIPHER_BIP_CMAC_128 &&
1123 wcid->cipher & BIT(MT_CIPHER_BIP_CMAC_128))
1124 mt76_rmw(dev, addr + 2 * 4, MT_WTBL_W2_KEY_TYPE,
1125 FIELD_PREP(MT_WTBL_W2_KEY_TYPE,
1126 MT_CIPHER_BIP_CMAC_128));
1127 else if (!(wcid->cipher & ~BIT(cipher)))
1128 mt76_clear(dev, addr + 2 * 4, MT_WTBL_W2_KEY_TYPE);
1129 }
1130 }
1131 EXPORT_SYMBOL_GPL(mt7615_mac_wtbl_update_cipher);
1132
mt7615_mac_wtbl_set_key(struct mt7615_dev * dev,struct mt76_wcid * wcid,struct ieee80211_key_conf * key,enum set_key_cmd cmd)1133 int mt7615_mac_wtbl_set_key(struct mt7615_dev *dev,
1134 struct mt76_wcid *wcid,
1135 struct ieee80211_key_conf *key,
1136 enum set_key_cmd cmd)
1137 {
1138 enum mt7615_cipher_type cipher;
1139 int err;
1140
1141 cipher = mt7615_mac_get_cipher(key->cipher);
1142 if (cipher == MT_CIPHER_NONE)
1143 return -EOPNOTSUPP;
1144
1145 spin_lock_bh(&dev->mt76.lock);
1146
1147 mt7615_mac_wtbl_update_cipher(dev, wcid, cipher, cmd);
1148 err = mt7615_mac_wtbl_update_key(dev, wcid, key->key, key->keylen,
1149 cipher, cmd);
1150 if (err < 0)
1151 goto out;
1152
1153 err = mt7615_mac_wtbl_update_pk(dev, wcid, cipher, key->keyidx,
1154 cmd);
1155 if (err < 0)
1156 goto out;
1157
1158 if (cmd == SET_KEY)
1159 wcid->cipher |= BIT(cipher);
1160 else
1161 wcid->cipher &= ~BIT(cipher);
1162
1163 out:
1164 spin_unlock_bh(&dev->mt76.lock);
1165
1166 return err;
1167 }
1168
mt7615_fill_txs(struct mt7615_dev * dev,struct mt7615_sta * sta,struct ieee80211_tx_info * info,__le32 * txs_data)1169 static bool mt7615_fill_txs(struct mt7615_dev *dev, struct mt7615_sta *sta,
1170 struct ieee80211_tx_info *info, __le32 *txs_data)
1171 {
1172 struct ieee80211_supported_band *sband;
1173 struct mt7615_rate_set *rs;
1174 struct mt76_phy *mphy;
1175 int first_idx = 0, last_idx;
1176 int i, idx, count;
1177 bool fixed_rate, ack_timeout;
1178 bool probe, ampdu, cck = false;
1179 bool rs_idx;
1180 u32 rate_set_tsf;
1181 u32 final_rate, final_rate_flags, final_nss, txs;
1182
1183 fixed_rate = info->status.rates[0].count;
1184 probe = !!(info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE);
1185
1186 txs = le32_to_cpu(txs_data[1]);
1187 ampdu = !fixed_rate && (txs & MT_TXS1_AMPDU);
1188
1189 txs = le32_to_cpu(txs_data[3]);
1190 count = FIELD_GET(MT_TXS3_TX_COUNT, txs);
1191 last_idx = FIELD_GET(MT_TXS3_LAST_TX_RATE, txs);
1192
1193 txs = le32_to_cpu(txs_data[0]);
1194 final_rate = FIELD_GET(MT_TXS0_TX_RATE, txs);
1195 ack_timeout = txs & MT_TXS0_ACK_TIMEOUT;
1196
1197 if (!ampdu && (txs & MT_TXS0_RTS_TIMEOUT))
1198 return false;
1199
1200 if (txs & MT_TXS0_QUEUE_TIMEOUT)
1201 return false;
1202
1203 if (!ack_timeout)
1204 info->flags |= IEEE80211_TX_STAT_ACK;
1205
1206 info->status.ampdu_len = 1;
1207 info->status.ampdu_ack_len = !!(info->flags &
1208 IEEE80211_TX_STAT_ACK);
1209
1210 if (ampdu || (info->flags & IEEE80211_TX_CTL_AMPDU))
1211 info->flags |= IEEE80211_TX_STAT_AMPDU | IEEE80211_TX_CTL_AMPDU;
1212
1213 first_idx = max_t(int, 0, last_idx - (count - 1) / MT7615_RATE_RETRY);
1214
1215 if (fixed_rate && !probe) {
1216 info->status.rates[0].count = count;
1217 i = 0;
1218 goto out;
1219 }
1220
1221 rate_set_tsf = READ_ONCE(sta->rate_set_tsf);
1222 rs_idx = !((u32)(FIELD_GET(MT_TXS4_F0_TIMESTAMP, le32_to_cpu(txs_data[4])) -
1223 rate_set_tsf) < 1000000);
1224 rs_idx ^= rate_set_tsf & BIT(0);
1225 rs = &sta->rateset[rs_idx];
1226
1227 if (!first_idx && rs->probe_rate.idx >= 0) {
1228 info->status.rates[0] = rs->probe_rate;
1229
1230 spin_lock_bh(&dev->mt76.lock);
1231 if (sta->rate_probe) {
1232 struct mt7615_phy *phy = &dev->phy;
1233
1234 if (sta->wcid.ext_phy && dev->mt76.phy2)
1235 phy = dev->mt76.phy2->priv;
1236
1237 mt7615_mac_set_rates(phy, sta, NULL, sta->rates);
1238 }
1239 spin_unlock_bh(&dev->mt76.lock);
1240 } else {
1241 info->status.rates[0] = rs->rates[first_idx / 2];
1242 }
1243 info->status.rates[0].count = 0;
1244
1245 for (i = 0, idx = first_idx; count && idx <= last_idx; idx++) {
1246 struct ieee80211_tx_rate *cur_rate;
1247 int cur_count;
1248
1249 cur_rate = &rs->rates[idx / 2];
1250 cur_count = min_t(int, MT7615_RATE_RETRY, count);
1251 count -= cur_count;
1252
1253 if (idx && (cur_rate->idx != info->status.rates[i].idx ||
1254 cur_rate->flags != info->status.rates[i].flags)) {
1255 i++;
1256 if (i == ARRAY_SIZE(info->status.rates)) {
1257 i--;
1258 break;
1259 }
1260
1261 info->status.rates[i] = *cur_rate;
1262 info->status.rates[i].count = 0;
1263 }
1264
1265 info->status.rates[i].count += cur_count;
1266 }
1267
1268 out:
1269 final_rate_flags = info->status.rates[i].flags;
1270
1271 switch (FIELD_GET(MT_TX_RATE_MODE, final_rate)) {
1272 case MT_PHY_TYPE_CCK:
1273 cck = true;
1274 fallthrough;
1275 case MT_PHY_TYPE_OFDM:
1276 mphy = &dev->mphy;
1277 if (sta->wcid.ext_phy && dev->mt76.phy2)
1278 mphy = dev->mt76.phy2;
1279
1280 if (mphy->chandef.chan->band == NL80211_BAND_5GHZ)
1281 sband = &mphy->sband_5g.sband;
1282 else
1283 sband = &mphy->sband_2g.sband;
1284 final_rate &= MT_TX_RATE_IDX;
1285 final_rate = mt76_get_rate(&dev->mt76, sband, final_rate,
1286 cck);
1287 final_rate_flags = 0;
1288 break;
1289 case MT_PHY_TYPE_HT_GF:
1290 case MT_PHY_TYPE_HT:
1291 final_rate_flags |= IEEE80211_TX_RC_MCS;
1292 final_rate &= MT_TX_RATE_IDX;
1293 if (final_rate > 31)
1294 return false;
1295 break;
1296 case MT_PHY_TYPE_VHT:
1297 final_nss = FIELD_GET(MT_TX_RATE_NSS, final_rate);
1298
1299 if ((final_rate & MT_TX_RATE_STBC) && final_nss)
1300 final_nss--;
1301
1302 final_rate_flags |= IEEE80211_TX_RC_VHT_MCS;
1303 final_rate = (final_rate & MT_TX_RATE_IDX) | (final_nss << 4);
1304 break;
1305 default:
1306 return false;
1307 }
1308
1309 info->status.rates[i].idx = final_rate;
1310 info->status.rates[i].flags = final_rate_flags;
1311
1312 return true;
1313 }
1314
mt7615_mac_add_txs_skb(struct mt7615_dev * dev,struct mt7615_sta * sta,int pid,__le32 * txs_data)1315 static bool mt7615_mac_add_txs_skb(struct mt7615_dev *dev,
1316 struct mt7615_sta *sta, int pid,
1317 __le32 *txs_data)
1318 {
1319 struct mt76_dev *mdev = &dev->mt76;
1320 struct sk_buff_head list;
1321 struct sk_buff *skb;
1322
1323 if (pid < MT_PACKET_ID_FIRST)
1324 return false;
1325
1326 trace_mac_txdone(mdev, sta->wcid.idx, pid);
1327
1328 mt76_tx_status_lock(mdev, &list);
1329 skb = mt76_tx_status_skb_get(mdev, &sta->wcid, pid, &list);
1330 if (skb) {
1331 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1332
1333 if (!mt7615_fill_txs(dev, sta, info, txs_data)) {
1334 ieee80211_tx_info_clear_status(info);
1335 info->status.rates[0].idx = -1;
1336 }
1337
1338 mt76_tx_status_skb_done(mdev, skb, &list);
1339 }
1340 mt76_tx_status_unlock(mdev, &list);
1341
1342 return !!skb;
1343 }
1344
mt7615_mac_add_txs(struct mt7615_dev * dev,void * data)1345 static void mt7615_mac_add_txs(struct mt7615_dev *dev, void *data)
1346 {
1347 struct ieee80211_tx_info info = {};
1348 struct ieee80211_sta *sta = NULL;
1349 struct mt7615_sta *msta = NULL;
1350 struct mt76_wcid *wcid;
1351 struct mt76_phy *mphy = &dev->mt76.phy;
1352 __le32 *txs_data = data;
1353 u32 txs;
1354 u8 wcidx;
1355 u8 pid;
1356
1357 txs = le32_to_cpu(txs_data[0]);
1358 pid = FIELD_GET(MT_TXS0_PID, txs);
1359 txs = le32_to_cpu(txs_data[2]);
1360 wcidx = FIELD_GET(MT_TXS2_WCID, txs);
1361
1362 if (pid == MT_PACKET_ID_NO_ACK)
1363 return;
1364
1365 if (wcidx >= MT7615_WTBL_SIZE)
1366 return;
1367
1368 rcu_read_lock();
1369
1370 wcid = rcu_dereference(dev->mt76.wcid[wcidx]);
1371 if (!wcid)
1372 goto out;
1373
1374 msta = container_of(wcid, struct mt7615_sta, wcid);
1375 sta = wcid_to_sta(wcid);
1376
1377 spin_lock_bh(&dev->sta_poll_lock);
1378 if (list_empty(&msta->poll_list))
1379 list_add_tail(&msta->poll_list, &dev->sta_poll_list);
1380 spin_unlock_bh(&dev->sta_poll_lock);
1381
1382 if (mt7615_mac_add_txs_skb(dev, msta, pid, txs_data))
1383 goto out;
1384
1385 if (wcidx >= MT7615_WTBL_STA || !sta)
1386 goto out;
1387
1388 if (wcid->ext_phy && dev->mt76.phy2)
1389 mphy = dev->mt76.phy2;
1390
1391 if (mt7615_fill_txs(dev, msta, &info, txs_data))
1392 ieee80211_tx_status_noskb(mphy->hw, sta, &info);
1393
1394 out:
1395 rcu_read_unlock();
1396 }
1397
1398 static void
mt7615_mac_tx_free_token(struct mt7615_dev * dev,u16 token)1399 mt7615_mac_tx_free_token(struct mt7615_dev *dev, u16 token)
1400 {
1401 struct mt76_dev *mdev = &dev->mt76;
1402 struct mt76_txwi_cache *txwi;
1403 __le32 *txwi_data;
1404 u32 val;
1405 u8 wcid;
1406
1407 trace_mac_tx_free(dev, token);
1408
1409 spin_lock_bh(&dev->token_lock);
1410 txwi = idr_remove(&dev->token, token);
1411 spin_unlock_bh(&dev->token_lock);
1412
1413 if (!txwi)
1414 return;
1415
1416 txwi_data = (__le32 *)mt76_get_txwi_ptr(mdev, txwi);
1417 val = le32_to_cpu(txwi_data[1]);
1418 wcid = FIELD_GET(MT_TXD1_WLAN_IDX, val);
1419
1420 mt7615_txp_skb_unmap(mdev, txwi);
1421 if (txwi->skb) {
1422 mt76_tx_complete_skb(mdev, wcid, txwi->skb);
1423 txwi->skb = NULL;
1424 }
1425
1426 mt76_put_txwi(mdev, txwi);
1427 }
1428
mt7615_mac_tx_free(struct mt7615_dev * dev,struct sk_buff * skb)1429 static void mt7615_mac_tx_free(struct mt7615_dev *dev, struct sk_buff *skb)
1430 {
1431 struct mt7615_tx_free *free = (struct mt7615_tx_free *)skb->data;
1432 u8 i, count;
1433
1434 mt76_queue_tx_cleanup(dev, MT_TXQ_PSD, false);
1435 if (is_mt7615(&dev->mt76)) {
1436 mt76_queue_tx_cleanup(dev, MT_TXQ_BE, false);
1437 } else {
1438 for (i = 0; i < IEEE80211_NUM_ACS; i++)
1439 mt76_queue_tx_cleanup(dev, i, false);
1440 }
1441
1442 count = FIELD_GET(MT_TX_FREE_MSDU_ID_CNT, le16_to_cpu(free->ctrl));
1443 if (is_mt7615(&dev->mt76)) {
1444 __le16 *token = &free->token[0];
1445
1446 for (i = 0; i < count; i++)
1447 mt7615_mac_tx_free_token(dev, le16_to_cpu(token[i]));
1448 } else {
1449 __le32 *token = (__le32 *)&free->token[0];
1450
1451 for (i = 0; i < count; i++)
1452 mt7615_mac_tx_free_token(dev, le32_to_cpu(token[i]));
1453 }
1454
1455 dev_kfree_skb(skb);
1456
1457 if (test_bit(MT76_STATE_PM, &dev->phy.mt76->state))
1458 return;
1459
1460 rcu_read_lock();
1461 mt7615_mac_sta_poll(dev);
1462 rcu_read_unlock();
1463
1464 mt7615_pm_power_save_sched(dev);
1465 mt76_worker_schedule(&dev->mt76.tx_worker);
1466 }
1467
mt7615_queue_rx_skb(struct mt76_dev * mdev,enum mt76_rxq_id q,struct sk_buff * skb)1468 void mt7615_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q,
1469 struct sk_buff *skb)
1470 {
1471 struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76);
1472 __le32 *rxd = (__le32 *)skb->data;
1473 __le32 *end = (__le32 *)&skb->data[skb->len];
1474 enum rx_pkt_type type;
1475 u16 flag;
1476
1477 type = FIELD_GET(MT_RXD0_PKT_TYPE, le32_to_cpu(rxd[0]));
1478 flag = FIELD_GET(MT_RXD0_PKT_FLAG, le32_to_cpu(rxd[0]));
1479 if (type == PKT_TYPE_RX_EVENT && flag == 0x1)
1480 type = PKT_TYPE_NORMAL_MCU;
1481
1482 switch (type) {
1483 case PKT_TYPE_TXS:
1484 for (rxd++; rxd + 7 <= end; rxd += 7)
1485 mt7615_mac_add_txs(dev, rxd);
1486 dev_kfree_skb(skb);
1487 break;
1488 case PKT_TYPE_TXRX_NOTIFY:
1489 mt7615_mac_tx_free(dev, skb);
1490 break;
1491 case PKT_TYPE_RX_EVENT:
1492 mt7615_mcu_rx_event(dev, skb);
1493 break;
1494 case PKT_TYPE_NORMAL_MCU:
1495 case PKT_TYPE_NORMAL:
1496 if (!mt7615_mac_fill_rx(dev, skb)) {
1497 mt76_rx(&dev->mt76, q, skb);
1498 return;
1499 }
1500 fallthrough;
1501 default:
1502 dev_kfree_skb(skb);
1503 break;
1504 }
1505 }
1506 EXPORT_SYMBOL_GPL(mt7615_queue_rx_skb);
1507
1508 static void
mt7615_mac_set_sensitivity(struct mt7615_phy * phy,int val,bool ofdm)1509 mt7615_mac_set_sensitivity(struct mt7615_phy *phy, int val, bool ofdm)
1510 {
1511 struct mt7615_dev *dev = phy->dev;
1512 bool ext_phy = phy != &dev->phy;
1513
1514 if (is_mt7663(&dev->mt76)) {
1515 if (ofdm)
1516 mt76_rmw(dev, MT7663_WF_PHY_MIN_PRI_PWR(ext_phy),
1517 MT_WF_PHY_PD_OFDM_MASK(0),
1518 MT_WF_PHY_PD_OFDM(0, val));
1519 else
1520 mt76_rmw(dev, MT7663_WF_PHY_RXTD_CCK_PD(ext_phy),
1521 MT_WF_PHY_PD_CCK_MASK(ext_phy),
1522 MT_WF_PHY_PD_CCK(ext_phy, val));
1523 return;
1524 }
1525
1526 if (ofdm)
1527 mt76_rmw(dev, MT_WF_PHY_MIN_PRI_PWR(ext_phy),
1528 MT_WF_PHY_PD_OFDM_MASK(ext_phy),
1529 MT_WF_PHY_PD_OFDM(ext_phy, val));
1530 else
1531 mt76_rmw(dev, MT_WF_PHY_RXTD_CCK_PD(ext_phy),
1532 MT_WF_PHY_PD_CCK_MASK(ext_phy),
1533 MT_WF_PHY_PD_CCK(ext_phy, val));
1534 }
1535
1536 static void
mt7615_mac_set_default_sensitivity(struct mt7615_phy * phy)1537 mt7615_mac_set_default_sensitivity(struct mt7615_phy *phy)
1538 {
1539 /* ofdm */
1540 mt7615_mac_set_sensitivity(phy, 0x13c, true);
1541 /* cck */
1542 mt7615_mac_set_sensitivity(phy, 0x92, false);
1543
1544 phy->ofdm_sensitivity = -98;
1545 phy->cck_sensitivity = -110;
1546 phy->last_cca_adj = jiffies;
1547 }
1548
mt7615_mac_set_scs(struct mt7615_phy * phy,bool enable)1549 void mt7615_mac_set_scs(struct mt7615_phy *phy, bool enable)
1550 {
1551 struct mt7615_dev *dev = phy->dev;
1552 bool ext_phy = phy != &dev->phy;
1553 u32 reg, mask;
1554
1555 mt7615_mutex_acquire(dev);
1556
1557 if (phy->scs_en == enable)
1558 goto out;
1559
1560 if (is_mt7663(&dev->mt76)) {
1561 reg = MT7663_WF_PHY_MIN_PRI_PWR(ext_phy);
1562 mask = MT_WF_PHY_PD_BLK(0);
1563 } else {
1564 reg = MT_WF_PHY_MIN_PRI_PWR(ext_phy);
1565 mask = MT_WF_PHY_PD_BLK(ext_phy);
1566 }
1567
1568 if (enable) {
1569 mt76_set(dev, reg, mask);
1570 if (is_mt7622(&dev->mt76)) {
1571 mt76_set(dev, MT_MIB_M0_MISC_CR(0), 0x7 << 8);
1572 mt76_set(dev, MT_MIB_M0_MISC_CR(0), 0x7);
1573 }
1574 } else {
1575 mt76_clear(dev, reg, mask);
1576 }
1577
1578 mt7615_mac_set_default_sensitivity(phy);
1579 phy->scs_en = enable;
1580
1581 out:
1582 mt7615_mutex_release(dev);
1583 }
1584
mt7615_mac_enable_nf(struct mt7615_dev * dev,bool ext_phy)1585 void mt7615_mac_enable_nf(struct mt7615_dev *dev, bool ext_phy)
1586 {
1587 u32 rxtd, reg;
1588
1589 if (is_mt7663(&dev->mt76))
1590 reg = MT7663_WF_PHY_R0_PHYMUX_5;
1591 else
1592 reg = MT_WF_PHY_R0_PHYMUX_5(ext_phy);
1593
1594 if (ext_phy)
1595 rxtd = MT_WF_PHY_RXTD2(10);
1596 else
1597 rxtd = MT_WF_PHY_RXTD(12);
1598
1599 mt76_set(dev, rxtd, BIT(18) | BIT(29));
1600 mt76_set(dev, reg, 0x5 << 12);
1601 }
1602
mt7615_mac_cca_stats_reset(struct mt7615_phy * phy)1603 void mt7615_mac_cca_stats_reset(struct mt7615_phy *phy)
1604 {
1605 struct mt7615_dev *dev = phy->dev;
1606 bool ext_phy = phy != &dev->phy;
1607 u32 reg;
1608
1609 if (is_mt7663(&dev->mt76))
1610 reg = MT7663_WF_PHY_R0_PHYMUX_5;
1611 else
1612 reg = MT_WF_PHY_R0_PHYMUX_5(ext_phy);
1613
1614 /* reset PD and MDRDY counters */
1615 mt76_clear(dev, reg, GENMASK(22, 20));
1616 mt76_set(dev, reg, BIT(22) | BIT(20));
1617 }
1618
1619 static void
mt7615_mac_adjust_sensitivity(struct mt7615_phy * phy,u32 rts_err_rate,bool ofdm)1620 mt7615_mac_adjust_sensitivity(struct mt7615_phy *phy,
1621 u32 rts_err_rate, bool ofdm)
1622 {
1623 struct mt7615_dev *dev = phy->dev;
1624 int false_cca = ofdm ? phy->false_cca_ofdm : phy->false_cca_cck;
1625 bool ext_phy = phy != &dev->phy;
1626 u16 def_th = ofdm ? -98 : -110;
1627 bool update = false;
1628 s8 *sensitivity;
1629 int signal;
1630
1631 sensitivity = ofdm ? &phy->ofdm_sensitivity : &phy->cck_sensitivity;
1632 signal = mt76_get_min_avg_rssi(&dev->mt76, ext_phy);
1633 if (!signal) {
1634 mt7615_mac_set_default_sensitivity(phy);
1635 return;
1636 }
1637
1638 signal = min(signal, -72);
1639 if (false_cca > 500) {
1640 if (rts_err_rate > MT_FRAC(40, 100))
1641 return;
1642
1643 /* decrease coverage */
1644 if (*sensitivity == def_th && signal > -90) {
1645 *sensitivity = -90;
1646 update = true;
1647 } else if (*sensitivity + 2 < signal) {
1648 *sensitivity += 2;
1649 update = true;
1650 }
1651 } else if ((false_cca > 0 && false_cca < 50) ||
1652 rts_err_rate > MT_FRAC(60, 100)) {
1653 /* increase coverage */
1654 if (*sensitivity - 2 >= def_th) {
1655 *sensitivity -= 2;
1656 update = true;
1657 }
1658 }
1659
1660 if (*sensitivity > signal) {
1661 *sensitivity = signal;
1662 update = true;
1663 }
1664
1665 if (update) {
1666 u16 val = ofdm ? *sensitivity * 2 + 512 : *sensitivity + 256;
1667
1668 mt7615_mac_set_sensitivity(phy, val, ofdm);
1669 phy->last_cca_adj = jiffies;
1670 }
1671 }
1672
1673 static void
mt7615_mac_scs_check(struct mt7615_phy * phy)1674 mt7615_mac_scs_check(struct mt7615_phy *phy)
1675 {
1676 struct mt7615_dev *dev = phy->dev;
1677 struct mib_stats *mib = &phy->mib;
1678 u32 val, rts_err_rate = 0;
1679 u32 mdrdy_cck, mdrdy_ofdm, pd_cck, pd_ofdm;
1680 bool ext_phy = phy != &dev->phy;
1681
1682 if (!phy->scs_en)
1683 return;
1684
1685 if (is_mt7663(&dev->mt76))
1686 val = mt76_rr(dev, MT7663_WF_PHY_R0_PHYCTRL_STS0(ext_phy));
1687 else
1688 val = mt76_rr(dev, MT_WF_PHY_R0_PHYCTRL_STS0(ext_phy));
1689 pd_cck = FIELD_GET(MT_WF_PHYCTRL_STAT_PD_CCK, val);
1690 pd_ofdm = FIELD_GET(MT_WF_PHYCTRL_STAT_PD_OFDM, val);
1691
1692 if (is_mt7663(&dev->mt76))
1693 val = mt76_rr(dev, MT7663_WF_PHY_R0_PHYCTRL_STS5(ext_phy));
1694 else
1695 val = mt76_rr(dev, MT_WF_PHY_R0_PHYCTRL_STS5(ext_phy));
1696 mdrdy_cck = FIELD_GET(MT_WF_PHYCTRL_STAT_MDRDY_CCK, val);
1697 mdrdy_ofdm = FIELD_GET(MT_WF_PHYCTRL_STAT_MDRDY_OFDM, val);
1698
1699 phy->false_cca_ofdm = pd_ofdm - mdrdy_ofdm;
1700 phy->false_cca_cck = pd_cck - mdrdy_cck;
1701 mt7615_mac_cca_stats_reset(phy);
1702
1703 if (mib->rts_cnt + mib->rts_retries_cnt)
1704 rts_err_rate = MT_FRAC(mib->rts_retries_cnt,
1705 mib->rts_cnt + mib->rts_retries_cnt);
1706
1707 /* cck */
1708 mt7615_mac_adjust_sensitivity(phy, rts_err_rate, false);
1709 /* ofdm */
1710 mt7615_mac_adjust_sensitivity(phy, rts_err_rate, true);
1711
1712 if (time_after(jiffies, phy->last_cca_adj + 10 * HZ))
1713 mt7615_mac_set_default_sensitivity(phy);
1714 }
1715
1716 static u8
mt7615_phy_get_nf(struct mt7615_dev * dev,int idx)1717 mt7615_phy_get_nf(struct mt7615_dev *dev, int idx)
1718 {
1719 static const u8 nf_power[] = { 92, 89, 86, 83, 80, 75, 70, 65, 60, 55, 52 };
1720 u32 reg, val, sum = 0, n = 0;
1721 int i;
1722
1723 if (is_mt7663(&dev->mt76))
1724 reg = MT7663_WF_PHY_RXTD(20);
1725 else
1726 reg = idx ? MT_WF_PHY_RXTD2(17) : MT_WF_PHY_RXTD(20);
1727
1728 for (i = 0; i < ARRAY_SIZE(nf_power); i++, reg += 4) {
1729 val = mt76_rr(dev, reg);
1730 sum += val * nf_power[i];
1731 n += val;
1732 }
1733
1734 if (!n)
1735 return 0;
1736
1737 return sum / n;
1738 }
1739
1740 static void
mt7615_phy_update_channel(struct mt76_phy * mphy,int idx)1741 mt7615_phy_update_channel(struct mt76_phy *mphy, int idx)
1742 {
1743 struct mt7615_dev *dev = container_of(mphy->dev, struct mt7615_dev, mt76);
1744 struct mt7615_phy *phy = mphy->priv;
1745 struct mt76_channel_state *state;
1746 u64 busy_time, tx_time, rx_time, obss_time;
1747 u32 obss_reg = idx ? MT_WF_RMAC_MIB_TIME6 : MT_WF_RMAC_MIB_TIME5;
1748 int nf;
1749
1750 busy_time = mt76_get_field(dev, MT_MIB_SDR9(idx),
1751 MT_MIB_SDR9_BUSY_MASK);
1752 tx_time = mt76_get_field(dev, MT_MIB_SDR36(idx),
1753 MT_MIB_SDR36_TXTIME_MASK);
1754 rx_time = mt76_get_field(dev, MT_MIB_SDR37(idx),
1755 MT_MIB_SDR37_RXTIME_MASK);
1756 obss_time = mt76_get_field(dev, obss_reg, MT_MIB_OBSSTIME_MASK);
1757
1758 nf = mt7615_phy_get_nf(dev, idx);
1759 if (!phy->noise)
1760 phy->noise = nf << 4;
1761 else if (nf)
1762 phy->noise += nf - (phy->noise >> 4);
1763
1764 state = mphy->chan_state;
1765 state->cc_busy += busy_time;
1766 state->cc_tx += tx_time;
1767 state->cc_rx += rx_time + obss_time;
1768 state->cc_bss_rx += rx_time;
1769 state->noise = -(phy->noise >> 4);
1770 }
1771
__mt7615_update_channel(struct mt7615_dev * dev)1772 static void __mt7615_update_channel(struct mt7615_dev *dev)
1773 {
1774 struct mt76_dev *mdev = &dev->mt76;
1775
1776 mt7615_phy_update_channel(&mdev->phy, 0);
1777 if (mdev->phy2)
1778 mt7615_phy_update_channel(mdev->phy2, 1);
1779
1780 /* reset obss airtime */
1781 mt76_set(dev, MT_WF_RMAC_MIB_TIME0, MT_WF_RMAC_MIB_RXTIME_CLR);
1782 }
1783
mt7615_update_channel(struct mt76_dev * mdev)1784 void mt7615_update_channel(struct mt76_dev *mdev)
1785 {
1786 struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76);
1787
1788 if (mt7615_pm_wake(dev))
1789 return;
1790
1791 __mt7615_update_channel(dev);
1792 mt7615_pm_power_save_sched(dev);
1793 }
1794 EXPORT_SYMBOL_GPL(mt7615_update_channel);
1795
mt7615_update_survey(struct mt7615_dev * dev)1796 static void mt7615_update_survey(struct mt7615_dev *dev)
1797 {
1798 struct mt76_dev *mdev = &dev->mt76;
1799 ktime_t cur_time;
1800
1801 __mt7615_update_channel(dev);
1802 cur_time = ktime_get_boottime();
1803
1804 mt76_update_survey_active_time(&mdev->phy, cur_time);
1805 if (mdev->phy2)
1806 mt76_update_survey_active_time(mdev->phy2, cur_time);
1807 }
1808
1809 static void
mt7615_mac_update_mib_stats(struct mt7615_phy * phy)1810 mt7615_mac_update_mib_stats(struct mt7615_phy *phy)
1811 {
1812 struct mt7615_dev *dev = phy->dev;
1813 struct mib_stats *mib = &phy->mib;
1814 bool ext_phy = phy != &dev->phy;
1815 int i, aggr;
1816 u32 val, val2;
1817
1818 memset(mib, 0, sizeof(*mib));
1819
1820 mib->fcs_err_cnt = mt76_get_field(dev, MT_MIB_SDR3(ext_phy),
1821 MT_MIB_SDR3_FCS_ERR_MASK);
1822
1823 val = mt76_get_field(dev, MT_MIB_SDR14(ext_phy),
1824 MT_MIB_AMPDU_MPDU_COUNT);
1825 if (val) {
1826 val2 = mt76_get_field(dev, MT_MIB_SDR15(ext_phy),
1827 MT_MIB_AMPDU_ACK_COUNT);
1828 mib->aggr_per = 1000 * (val - val2) / val;
1829 }
1830
1831 aggr = ext_phy ? ARRAY_SIZE(dev->mt76.aggr_stats) / 2 : 0;
1832 for (i = 0; i < 4; i++) {
1833 val = mt76_rr(dev, MT_MIB_MB_SDR1(ext_phy, i));
1834
1835 val2 = FIELD_GET(MT_MIB_ACK_FAIL_COUNT_MASK, val);
1836 if (val2 > mib->ack_fail_cnt)
1837 mib->ack_fail_cnt = val2;
1838
1839 val2 = FIELD_GET(MT_MIB_BA_MISS_COUNT_MASK, val);
1840 if (val2 > mib->ba_miss_cnt)
1841 mib->ba_miss_cnt = val2;
1842
1843 val = mt76_rr(dev, MT_MIB_MB_SDR0(ext_phy, i));
1844 val2 = FIELD_GET(MT_MIB_RTS_RETRIES_COUNT_MASK, val);
1845 if (val2 > mib->rts_retries_cnt) {
1846 mib->rts_cnt = FIELD_GET(MT_MIB_RTS_COUNT_MASK, val);
1847 mib->rts_retries_cnt = val2;
1848 }
1849
1850 val = mt76_rr(dev, MT_TX_AGG_CNT(ext_phy, i));
1851
1852 dev->mt76.aggr_stats[aggr++] += val & 0xffff;
1853 dev->mt76.aggr_stats[aggr++] += val >> 16;
1854 }
1855 }
1856
mt7615_pm_wake_work(struct work_struct * work)1857 void mt7615_pm_wake_work(struct work_struct *work)
1858 {
1859 struct mt7615_dev *dev;
1860 struct mt76_phy *mphy;
1861 int i;
1862
1863 dev = (struct mt7615_dev *)container_of(work, struct mt7615_dev,
1864 pm.wake_work);
1865 mphy = dev->phy.mt76;
1866
1867 if (mt7615_mcu_set_drv_ctrl(dev)) {
1868 dev_err(mphy->dev->dev, "failed to wake device\n");
1869 goto out;
1870 }
1871
1872 spin_lock_bh(&dev->pm.txq_lock);
1873 for (i = 0; i < IEEE80211_NUM_ACS; i++) {
1874 struct mt7615_sta *msta = dev->pm.tx_q[i].msta;
1875 struct ieee80211_sta *sta = NULL;
1876 struct mt76_wcid *wcid;
1877
1878 if (!dev->pm.tx_q[i].skb)
1879 continue;
1880
1881 wcid = msta ? &msta->wcid : &dev->mt76.global_wcid;
1882 if (msta && wcid->sta)
1883 sta = container_of((void *)msta, struct ieee80211_sta,
1884 drv_priv);
1885
1886 mt76_tx(mphy, sta, wcid, dev->pm.tx_q[i].skb);
1887 dev->pm.tx_q[i].skb = NULL;
1888 }
1889 spin_unlock_bh(&dev->pm.txq_lock);
1890
1891 mt76_worker_schedule(&dev->mt76.tx_worker);
1892
1893 out:
1894 ieee80211_wake_queues(mphy->hw);
1895 complete_all(&dev->pm.wake_cmpl);
1896 }
1897
mt7615_pm_wake(struct mt7615_dev * dev)1898 int mt7615_pm_wake(struct mt7615_dev *dev)
1899 {
1900 struct mt76_phy *mphy = dev->phy.mt76;
1901
1902 if (!mt7615_firmware_offload(dev))
1903 return 0;
1904
1905 if (!mt76_is_mmio(mphy->dev))
1906 return 0;
1907
1908 if (!test_bit(MT76_STATE_PM, &mphy->state))
1909 return 0;
1910
1911 if (test_bit(MT76_HW_SCANNING, &mphy->state) ||
1912 test_bit(MT76_HW_SCHED_SCANNING, &mphy->state))
1913 return 0;
1914
1915 if (queue_work(dev->mt76.wq, &dev->pm.wake_work))
1916 reinit_completion(&dev->pm.wake_cmpl);
1917
1918 if (!wait_for_completion_timeout(&dev->pm.wake_cmpl, 3 * HZ)) {
1919 ieee80211_wake_queues(mphy->hw);
1920 return -ETIMEDOUT;
1921 }
1922
1923 return 0;
1924 }
1925 EXPORT_SYMBOL_GPL(mt7615_pm_wake);
1926
mt7615_pm_power_save_sched(struct mt7615_dev * dev)1927 void mt7615_pm_power_save_sched(struct mt7615_dev *dev)
1928 {
1929 struct mt76_phy *mphy = dev->phy.mt76;
1930
1931 if (!mt7615_firmware_offload(dev))
1932 return;
1933
1934 if (!mt76_is_mmio(mphy->dev))
1935 return;
1936
1937 if (!dev->pm.enable || !test_bit(MT76_STATE_RUNNING, &mphy->state))
1938 return;
1939
1940 dev->pm.last_activity = jiffies;
1941
1942 if (test_bit(MT76_HW_SCANNING, &mphy->state) ||
1943 test_bit(MT76_HW_SCHED_SCANNING, &mphy->state))
1944 return;
1945
1946 if (!test_bit(MT76_STATE_PM, &mphy->state))
1947 queue_delayed_work(dev->mt76.wq, &dev->pm.ps_work,
1948 dev->pm.idle_timeout);
1949 }
1950 EXPORT_SYMBOL_GPL(mt7615_pm_power_save_sched);
1951
mt7615_pm_power_save_work(struct work_struct * work)1952 void mt7615_pm_power_save_work(struct work_struct *work)
1953 {
1954 struct mt7615_dev *dev;
1955 unsigned long delta;
1956
1957 dev = (struct mt7615_dev *)container_of(work, struct mt7615_dev,
1958 pm.ps_work.work);
1959
1960 delta = dev->pm.idle_timeout;
1961 if (time_is_after_jiffies(dev->pm.last_activity + delta)) {
1962 delta = dev->pm.last_activity + delta - jiffies;
1963 goto out;
1964 }
1965
1966 if (!mt7615_mcu_set_fw_ctrl(dev))
1967 return;
1968 out:
1969 queue_delayed_work(dev->mt76.wq, &dev->pm.ps_work, delta);
1970 }
1971
1972 static void
mt7615_pm_interface_iter(void * priv,u8 * mac,struct ieee80211_vif * vif)1973 mt7615_pm_interface_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
1974 {
1975 struct mt7615_phy *phy = priv;
1976 struct mt7615_dev *dev = phy->dev;
1977 bool ext_phy = phy != &dev->phy;
1978
1979 if (mt7615_mcu_set_bss_pm(dev, vif, dev->pm.enable))
1980 return;
1981
1982 if (dev->pm.enable) {
1983 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER;
1984 mt76_set(dev, MT_WF_RFCR(ext_phy),
1985 MT_WF_RFCR_DROP_OTHER_BEACON);
1986 } else {
1987 vif->driver_flags &= ~IEEE80211_VIF_BEACON_FILTER;
1988 mt76_clear(dev, MT_WF_RFCR(ext_phy),
1989 MT_WF_RFCR_DROP_OTHER_BEACON);
1990 }
1991 }
1992
mt7615_pm_set_enable(struct mt7615_dev * dev,bool enable)1993 int mt7615_pm_set_enable(struct mt7615_dev *dev, bool enable)
1994 {
1995 struct mt76_phy *mphy = dev->phy.mt76;
1996
1997 if (!mt7615_firmware_offload(dev) || !mt76_is_mmio(&dev->mt76))
1998 return -EOPNOTSUPP;
1999
2000 mt7615_mutex_acquire(dev);
2001
2002 if (dev->pm.enable == enable)
2003 goto out;
2004
2005 dev->pm.enable = enable;
2006 ieee80211_iterate_active_interfaces(mphy->hw,
2007 IEEE80211_IFACE_ITER_RESUME_ALL,
2008 mt7615_pm_interface_iter, mphy->priv);
2009 out:
2010 mt7615_mutex_release(dev);
2011
2012 return 0;
2013 }
2014
mt7615_mac_work(struct work_struct * work)2015 void mt7615_mac_work(struct work_struct *work)
2016 {
2017 struct mt7615_phy *phy;
2018 struct mt76_dev *mdev;
2019
2020 phy = (struct mt7615_phy *)container_of(work, struct mt7615_phy,
2021 mac_work.work);
2022 mdev = &phy->dev->mt76;
2023
2024 mt7615_mutex_acquire(phy->dev);
2025
2026 mt7615_update_survey(phy->dev);
2027 if (++phy->mac_work_count == 5) {
2028 phy->mac_work_count = 0;
2029
2030 mt7615_mac_update_mib_stats(phy);
2031 mt7615_mac_scs_check(phy);
2032 }
2033
2034 mt7615_mutex_release(phy->dev);
2035
2036 mt76_tx_status_check(mdev, NULL, false);
2037 ieee80211_queue_delayed_work(phy->mt76->hw, &phy->mac_work,
2038 MT7615_WATCHDOG_TIME);
2039 }
2040
2041 static bool
mt7615_wait_reset_state(struct mt7615_dev * dev,u32 state)2042 mt7615_wait_reset_state(struct mt7615_dev *dev, u32 state)
2043 {
2044 bool ret;
2045
2046 ret = wait_event_timeout(dev->reset_wait,
2047 (READ_ONCE(dev->reset_state) & state),
2048 MT7615_RESET_TIMEOUT);
2049 WARN(!ret, "Timeout waiting for MCU reset state %x\n", state);
2050 return ret;
2051 }
2052
2053 static void
mt7615_update_vif_beacon(void * priv,u8 * mac,struct ieee80211_vif * vif)2054 mt7615_update_vif_beacon(void *priv, u8 *mac, struct ieee80211_vif *vif)
2055 {
2056 struct ieee80211_hw *hw = priv;
2057 struct mt7615_dev *dev = mt7615_hw_dev(hw);
2058
2059 mt7615_mcu_add_beacon(dev, hw, vif, vif->bss_conf.enable_beacon);
2060 }
2061
2062 static void
mt7615_update_beacons(struct mt7615_dev * dev)2063 mt7615_update_beacons(struct mt7615_dev *dev)
2064 {
2065 ieee80211_iterate_active_interfaces(dev->mt76.hw,
2066 IEEE80211_IFACE_ITER_RESUME_ALL,
2067 mt7615_update_vif_beacon, dev->mt76.hw);
2068
2069 if (!dev->mt76.phy2)
2070 return;
2071
2072 ieee80211_iterate_active_interfaces(dev->mt76.phy2->hw,
2073 IEEE80211_IFACE_ITER_RESUME_ALL,
2074 mt7615_update_vif_beacon, dev->mt76.phy2->hw);
2075 }
2076
mt7615_dma_reset(struct mt7615_dev * dev)2077 void mt7615_dma_reset(struct mt7615_dev *dev)
2078 {
2079 int i;
2080
2081 mt76_clear(dev, MT_WPDMA_GLO_CFG,
2082 MT_WPDMA_GLO_CFG_RX_DMA_EN | MT_WPDMA_GLO_CFG_TX_DMA_EN |
2083 MT_WPDMA_GLO_CFG_TX_WRITEBACK_DONE);
2084 usleep_range(1000, 2000);
2085
2086 for (i = 0; i < __MT_TXQ_MAX; i++)
2087 mt76_queue_tx_cleanup(dev, i, true);
2088
2089 mt76_for_each_q_rx(&dev->mt76, i) {
2090 mt76_queue_rx_reset(dev, i);
2091 }
2092
2093 mt76_set(dev, MT_WPDMA_GLO_CFG,
2094 MT_WPDMA_GLO_CFG_RX_DMA_EN | MT_WPDMA_GLO_CFG_TX_DMA_EN |
2095 MT_WPDMA_GLO_CFG_TX_WRITEBACK_DONE);
2096 }
2097 EXPORT_SYMBOL_GPL(mt7615_dma_reset);
2098
mt7615_mac_reset_work(struct work_struct * work)2099 void mt7615_mac_reset_work(struct work_struct *work)
2100 {
2101 struct mt7615_phy *phy2;
2102 struct mt76_phy *ext_phy;
2103 struct mt7615_dev *dev;
2104
2105 dev = container_of(work, struct mt7615_dev, reset_work);
2106 ext_phy = dev->mt76.phy2;
2107 phy2 = ext_phy ? ext_phy->priv : NULL;
2108
2109 if (!(READ_ONCE(dev->reset_state) & MT_MCU_CMD_STOP_PDMA))
2110 return;
2111
2112 ieee80211_stop_queues(mt76_hw(dev));
2113 if (ext_phy)
2114 ieee80211_stop_queues(ext_phy->hw);
2115
2116 set_bit(MT76_RESET, &dev->mphy.state);
2117 set_bit(MT76_MCU_RESET, &dev->mphy.state);
2118 wake_up(&dev->mt76.mcu.wait);
2119 cancel_delayed_work_sync(&dev->phy.mac_work);
2120 del_timer_sync(&dev->phy.roc_timer);
2121 cancel_work_sync(&dev->phy.roc_work);
2122 if (phy2) {
2123 cancel_delayed_work_sync(&phy2->mac_work);
2124 del_timer_sync(&phy2->roc_timer);
2125 cancel_work_sync(&phy2->roc_work);
2126 }
2127
2128 /* lock/unlock all queues to ensure that no tx is pending */
2129 mt76_txq_schedule_all(&dev->mphy);
2130 if (ext_phy)
2131 mt76_txq_schedule_all(ext_phy);
2132
2133 mt76_worker_disable(&dev->mt76.tx_worker);
2134 napi_disable(&dev->mt76.napi[0]);
2135 napi_disable(&dev->mt76.napi[1]);
2136 napi_disable(&dev->mt76.tx_napi);
2137
2138 mt7615_mutex_acquire(dev);
2139
2140 mt76_wr(dev, MT_MCU_INT_EVENT, MT_MCU_INT_EVENT_PDMA_STOPPED);
2141
2142 if (mt7615_wait_reset_state(dev, MT_MCU_CMD_RESET_DONE)) {
2143 mt7615_dma_reset(dev);
2144
2145 mt76_wr(dev, MT_WPDMA_MEM_RNG_ERR, 0);
2146
2147 mt76_wr(dev, MT_MCU_INT_EVENT, MT_MCU_INT_EVENT_PDMA_INIT);
2148 mt7615_wait_reset_state(dev, MT_MCU_CMD_RECOVERY_DONE);
2149 }
2150
2151 clear_bit(MT76_MCU_RESET, &dev->mphy.state);
2152 clear_bit(MT76_RESET, &dev->mphy.state);
2153
2154 mt76_worker_enable(&dev->mt76.tx_worker);
2155 napi_enable(&dev->mt76.tx_napi);
2156 napi_schedule(&dev->mt76.tx_napi);
2157
2158 napi_enable(&dev->mt76.napi[0]);
2159 napi_schedule(&dev->mt76.napi[0]);
2160
2161 napi_enable(&dev->mt76.napi[1]);
2162 napi_schedule(&dev->mt76.napi[1]);
2163
2164 ieee80211_wake_queues(mt76_hw(dev));
2165 if (ext_phy)
2166 ieee80211_wake_queues(ext_phy->hw);
2167
2168 mt76_wr(dev, MT_MCU_INT_EVENT, MT_MCU_INT_EVENT_RESET_DONE);
2169 mt7615_wait_reset_state(dev, MT_MCU_CMD_NORMAL_STATE);
2170
2171 mt7615_update_beacons(dev);
2172
2173 mt7615_mutex_release(dev);
2174
2175 ieee80211_queue_delayed_work(mt76_hw(dev), &dev->phy.mac_work,
2176 MT7615_WATCHDOG_TIME);
2177 if (phy2)
2178 ieee80211_queue_delayed_work(ext_phy->hw, &phy2->mac_work,
2179 MT7615_WATCHDOG_TIME);
2180
2181 }
2182
mt7615_dfs_stop_radar_detector(struct mt7615_phy * phy)2183 static void mt7615_dfs_stop_radar_detector(struct mt7615_phy *phy)
2184 {
2185 struct mt7615_dev *dev = phy->dev;
2186
2187 if (phy->rdd_state & BIT(0))
2188 mt7615_mcu_rdd_cmd(dev, RDD_STOP, 0, MT_RX_SEL0, 0);
2189 if (phy->rdd_state & BIT(1))
2190 mt7615_mcu_rdd_cmd(dev, RDD_STOP, 1, MT_RX_SEL0, 0);
2191 }
2192
mt7615_dfs_start_rdd(struct mt7615_dev * dev,int chain)2193 static int mt7615_dfs_start_rdd(struct mt7615_dev *dev, int chain)
2194 {
2195 int err;
2196
2197 err = mt7615_mcu_rdd_cmd(dev, RDD_START, chain, MT_RX_SEL0, 0);
2198 if (err < 0)
2199 return err;
2200
2201 return mt7615_mcu_rdd_cmd(dev, RDD_DET_MODE, chain,
2202 MT_RX_SEL0, 1);
2203 }
2204
mt7615_dfs_start_radar_detector(struct mt7615_phy * phy)2205 static int mt7615_dfs_start_radar_detector(struct mt7615_phy *phy)
2206 {
2207 struct cfg80211_chan_def *chandef = &phy->mt76->chandef;
2208 struct mt7615_dev *dev = phy->dev;
2209 bool ext_phy = phy != &dev->phy;
2210 int err;
2211
2212 /* start CAC */
2213 err = mt7615_mcu_rdd_cmd(dev, RDD_CAC_START, ext_phy, MT_RX_SEL0, 0);
2214 if (err < 0)
2215 return err;
2216
2217 err = mt7615_dfs_start_rdd(dev, ext_phy);
2218 if (err < 0)
2219 return err;
2220
2221 phy->rdd_state |= BIT(ext_phy);
2222
2223 if (chandef->width == NL80211_CHAN_WIDTH_160 ||
2224 chandef->width == NL80211_CHAN_WIDTH_80P80) {
2225 err = mt7615_dfs_start_rdd(dev, 1);
2226 if (err < 0)
2227 return err;
2228
2229 phy->rdd_state |= BIT(1);
2230 }
2231
2232 return 0;
2233 }
2234
2235 static int
mt7615_dfs_init_radar_specs(struct mt7615_phy * phy)2236 mt7615_dfs_init_radar_specs(struct mt7615_phy *phy)
2237 {
2238 const struct mt7615_dfs_radar_spec *radar_specs;
2239 struct mt7615_dev *dev = phy->dev;
2240 int err, i;
2241
2242 switch (dev->mt76.region) {
2243 case NL80211_DFS_FCC:
2244 radar_specs = &fcc_radar_specs;
2245 err = mt7615_mcu_set_fcc5_lpn(dev, 8);
2246 if (err < 0)
2247 return err;
2248 break;
2249 case NL80211_DFS_ETSI:
2250 radar_specs = &etsi_radar_specs;
2251 break;
2252 case NL80211_DFS_JP:
2253 radar_specs = &jp_radar_specs;
2254 break;
2255 default:
2256 return -EINVAL;
2257 }
2258
2259 for (i = 0; i < ARRAY_SIZE(radar_specs->radar_pattern); i++) {
2260 err = mt7615_mcu_set_radar_th(dev, i,
2261 &radar_specs->radar_pattern[i]);
2262 if (err < 0)
2263 return err;
2264 }
2265
2266 return mt7615_mcu_set_pulse_th(dev, &radar_specs->pulse_th);
2267 }
2268
mt7615_dfs_init_radar_detector(struct mt7615_phy * phy)2269 int mt7615_dfs_init_radar_detector(struct mt7615_phy *phy)
2270 {
2271 struct cfg80211_chan_def *chandef = &phy->mt76->chandef;
2272 struct mt7615_dev *dev = phy->dev;
2273 bool ext_phy = phy != &dev->phy;
2274 int err;
2275
2276 if (is_mt7663(&dev->mt76))
2277 return 0;
2278
2279 if (dev->mt76.region == NL80211_DFS_UNSET) {
2280 phy->dfs_state = -1;
2281 if (phy->rdd_state)
2282 goto stop;
2283
2284 return 0;
2285 }
2286
2287 if (test_bit(MT76_SCANNING, &phy->mt76->state))
2288 return 0;
2289
2290 if (phy->dfs_state == chandef->chan->dfs_state)
2291 return 0;
2292
2293 err = mt7615_dfs_init_radar_specs(phy);
2294 if (err < 0) {
2295 phy->dfs_state = -1;
2296 goto stop;
2297 }
2298
2299 phy->dfs_state = chandef->chan->dfs_state;
2300
2301 if (chandef->chan->flags & IEEE80211_CHAN_RADAR) {
2302 if (chandef->chan->dfs_state != NL80211_DFS_AVAILABLE)
2303 return mt7615_dfs_start_radar_detector(phy);
2304
2305 return mt7615_mcu_rdd_cmd(dev, RDD_CAC_END, ext_phy,
2306 MT_RX_SEL0, 0);
2307 }
2308
2309 stop:
2310 err = mt7615_mcu_rdd_cmd(dev, RDD_NORMAL_START, ext_phy, MT_RX_SEL0, 0);
2311 if (err < 0)
2312 return err;
2313
2314 mt7615_dfs_stop_radar_detector(phy);
2315 return 0;
2316 }
2317
