1 // SPDX-License-Identifier: ISC
2 /* Copyright (C) 2020 MediaTek Inc. */
3
4 #include "mt7915.h"
5 #include "eeprom.h"
6
7 /** global debugfs **/
8
9 /* test knob of system layer 1/2 error recovery */
mt7915_ser_trigger_set(void * data,u64 val)10 static int mt7915_ser_trigger_set(void *data, u64 val)
11 {
12 enum {
13 SER_SET_RECOVER_L1 = 1,
14 SER_SET_RECOVER_L2,
15 SER_ENABLE = 2,
16 SER_RECOVER
17 };
18 struct mt7915_dev *dev = data;
19 int ret = 0;
20
21 switch (val) {
22 case SER_SET_RECOVER_L1:
23 case SER_SET_RECOVER_L2:
24 ret = mt7915_mcu_set_ser(dev, SER_ENABLE, BIT(val), 0);
25 if (ret)
26 return ret;
27
28 return mt7915_mcu_set_ser(dev, SER_RECOVER, val, 0);
29 default:
30 break;
31 }
32
33 return ret;
34 }
35
36 DEFINE_DEBUGFS_ATTRIBUTE(fops_ser_trigger, NULL,
37 mt7915_ser_trigger_set, "%lld\n");
38
39 static int
mt7915_radar_trigger(void * data,u64 val)40 mt7915_radar_trigger(void *data, u64 val)
41 {
42 struct mt7915_dev *dev = data;
43
44 return mt7915_mcu_rdd_cmd(dev, RDD_RADAR_EMULATE, 1, 0, 0);
45 }
46
47 DEFINE_DEBUGFS_ATTRIBUTE(fops_radar_trigger, NULL,
48 mt7915_radar_trigger, "%lld\n");
49
50 static int
mt7915_dbdc_set(void * data,u64 val)51 mt7915_dbdc_set(void *data, u64 val)
52 {
53 struct mt7915_dev *dev = data;
54
55 if (val)
56 mt7915_register_ext_phy(dev);
57 else
58 mt7915_unregister_ext_phy(dev);
59
60 return 0;
61 }
62
63 static int
mt7915_dbdc_get(void * data,u64 * val)64 mt7915_dbdc_get(void *data, u64 *val)
65 {
66 struct mt7915_dev *dev = data;
67
68 *val = !!mt7915_ext_phy(dev);
69
70 return 0;
71 }
72
73 DEFINE_DEBUGFS_ATTRIBUTE(fops_dbdc, mt7915_dbdc_get,
74 mt7915_dbdc_set, "%lld\n");
75
76 static int
mt7915_fw_debug_set(void * data,u64 val)77 mt7915_fw_debug_set(void *data, u64 val)
78 {
79 struct mt7915_dev *dev = data;
80 enum {
81 DEBUG_TXCMD = 62,
82 DEBUG_CMD_RPT_TX,
83 DEBUG_CMD_RPT_TRIG,
84 DEBUG_SPL,
85 DEBUG_RPT_RX,
86 } debug;
87
88 dev->fw_debug = !!val;
89
90 mt7915_mcu_fw_log_2_host(dev, dev->fw_debug ? 2 : 0);
91
92 for (debug = DEBUG_TXCMD; debug <= DEBUG_RPT_RX; debug++)
93 mt7915_mcu_fw_dbg_ctrl(dev, debug, dev->fw_debug);
94
95 return 0;
96 }
97
98 static int
mt7915_fw_debug_get(void * data,u64 * val)99 mt7915_fw_debug_get(void *data, u64 *val)
100 {
101 struct mt7915_dev *dev = data;
102
103 *val = dev->fw_debug;
104
105 return 0;
106 }
107
108 DEFINE_DEBUGFS_ATTRIBUTE(fops_fw_debug, mt7915_fw_debug_get,
109 mt7915_fw_debug_set, "%lld\n");
110
111 static void
mt7915_ampdu_stat_read_phy(struct mt7915_phy * phy,struct seq_file * file)112 mt7915_ampdu_stat_read_phy(struct mt7915_phy *phy,
113 struct seq_file *file)
114 {
115 struct mt7915_dev *dev = file->private;
116 bool ext_phy = phy != &dev->phy;
117 int bound[15], range[4], i, n;
118
119 if (!phy)
120 return;
121
122 /* Tx ampdu stat */
123 for (i = 0; i < ARRAY_SIZE(range); i++)
124 range[i] = mt76_rr(dev, MT_MIB_ARNG(ext_phy, i));
125
126 for (i = 0; i < ARRAY_SIZE(bound); i++)
127 bound[i] = MT_MIB_ARNCR_RANGE(range[i / 4], i % 4) + 1;
128
129 seq_printf(file, "\nPhy %d\n", ext_phy);
130
131 seq_printf(file, "Length: %8d | ", bound[0]);
132 for (i = 0; i < ARRAY_SIZE(bound) - 1; i++)
133 seq_printf(file, "%3d -%3d | ",
134 bound[i] + 1, bound[i + 1]);
135
136 seq_puts(file, "\nCount: ");
137 n = ext_phy ? ARRAY_SIZE(dev->mt76.aggr_stats) / 2 : 0;
138 for (i = 0; i < ARRAY_SIZE(bound); i++)
139 seq_printf(file, "%8d | ", dev->mt76.aggr_stats[i + n]);
140 seq_puts(file, "\n");
141
142 seq_printf(file, "BA miss count: %d\n", phy->mib.ba_miss_cnt);
143 }
144
145 static void
mt7915_txbf_stat_read_phy(struct mt7915_phy * phy,struct seq_file * s)146 mt7915_txbf_stat_read_phy(struct mt7915_phy *phy, struct seq_file *s)
147 {
148 struct mt7915_dev *dev = s->private;
149 bool ext_phy = phy != &dev->phy;
150 int cnt;
151
152 if (!phy)
153 return;
154
155 /* Tx Beamformer monitor */
156 seq_puts(s, "\nTx Beamformer applied PPDU counts: ");
157
158 cnt = mt76_rr(dev, MT_ETBF_TX_APP_CNT(ext_phy));
159 seq_printf(s, "iBF: %ld, eBF: %ld\n",
160 FIELD_GET(MT_ETBF_TX_IBF_CNT, cnt),
161 FIELD_GET(MT_ETBF_TX_EBF_CNT, cnt));
162
163 /* Tx Beamformer Rx feedback monitor */
164 seq_puts(s, "Tx Beamformer Rx feedback statistics: ");
165
166 cnt = mt76_rr(dev, MT_ETBF_RX_FB_CNT(ext_phy));
167 seq_printf(s, "All: %ld, HE: %ld, VHT: %ld, HT: %ld\n",
168 FIELD_GET(MT_ETBF_RX_FB_ALL, cnt),
169 FIELD_GET(MT_ETBF_RX_FB_HE, cnt),
170 FIELD_GET(MT_ETBF_RX_FB_VHT, cnt),
171 FIELD_GET(MT_ETBF_RX_FB_HT, cnt));
172
173 /* Tx Beamformee Rx NDPA & Tx feedback report */
174 cnt = mt76_rr(dev, MT_ETBF_TX_NDP_BFRP(ext_phy));
175 seq_printf(s, "Tx Beamformee successful feedback frames: %ld\n",
176 FIELD_GET(MT_ETBF_TX_FB_CPL, cnt));
177 seq_printf(s, "Tx Beamformee feedback triggered counts: %ld\n",
178 FIELD_GET(MT_ETBF_TX_FB_TRI, cnt));
179
180 /* Tx SU & MU counters */
181 cnt = mt76_rr(dev, MT_MIB_SDR34(ext_phy));
182 seq_printf(s, "Tx multi-user Beamforming counts: %ld\n",
183 FIELD_GET(MT_MIB_MU_BF_TX_CNT, cnt));
184 cnt = mt76_rr(dev, MT_MIB_DR8(ext_phy));
185 seq_printf(s, "Tx multi-user MPDU counts: %d\n", cnt);
186 cnt = mt76_rr(dev, MT_MIB_DR9(ext_phy));
187 seq_printf(s, "Tx multi-user successful MPDU counts: %d\n", cnt);
188 cnt = mt76_rr(dev, MT_MIB_DR11(ext_phy));
189 seq_printf(s, "Tx single-user successful MPDU counts: %d\n", cnt);
190
191 seq_puts(s, "\n");
192 }
193
194 static int
mt7915_tx_stats_read(struct seq_file * file,void * data)195 mt7915_tx_stats_read(struct seq_file *file, void *data)
196 {
197 struct mt7915_dev *dev = file->private;
198 int stat[8], i, n;
199
200 mt7915_ampdu_stat_read_phy(&dev->phy, file);
201 mt7915_txbf_stat_read_phy(&dev->phy, file);
202
203 mt7915_ampdu_stat_read_phy(mt7915_ext_phy(dev), file);
204 mt7915_txbf_stat_read_phy(mt7915_ext_phy(dev), file);
205
206 /* Tx amsdu info */
207 seq_puts(file, "Tx MSDU stat:\n");
208 for (i = 0, n = 0; i < ARRAY_SIZE(stat); i++) {
209 stat[i] = mt76_rr(dev, MT_PLE_AMSDU_PACK_MSDU_CNT(i));
210 n += stat[i];
211 }
212
213 for (i = 0; i < ARRAY_SIZE(stat); i++) {
214 seq_printf(file, "AMSDU pack count of %d MSDU in TXD: 0x%x ",
215 i + 1, stat[i]);
216 if (n != 0)
217 seq_printf(file, "(%d%%)\n", stat[i] * 100 / n);
218 else
219 seq_puts(file, "\n");
220 }
221
222 return 0;
223 }
224
225 static int
mt7915_tx_stats_open(struct inode * inode,struct file * f)226 mt7915_tx_stats_open(struct inode *inode, struct file *f)
227 {
228 return single_open(f, mt7915_tx_stats_read, inode->i_private);
229 }
230
231 static const struct file_operations fops_tx_stats = {
232 .open = mt7915_tx_stats_open,
233 .read = seq_read,
234 .llseek = seq_lseek,
235 .release = single_release,
236 .owner = THIS_MODULE,
237 };
238
mt7915_read_temperature(struct seq_file * s,void * data)239 static int mt7915_read_temperature(struct seq_file *s, void *data)
240 {
241 struct mt7915_dev *dev = dev_get_drvdata(s->private);
242 int temp;
243
244 /* cpu */
245 temp = mt7915_mcu_get_temperature(dev, 0);
246 seq_printf(s, "Temperature: %d\n", temp);
247
248 return 0;
249 }
250
251 static int
mt7915_queues_acq(struct seq_file * s,void * data)252 mt7915_queues_acq(struct seq_file *s, void *data)
253 {
254 struct mt7915_dev *dev = dev_get_drvdata(s->private);
255 int i;
256
257 for (i = 0; i < 16; i++) {
258 int j, acs = i / 4, index = i % 4;
259 u32 ctrl, val, qlen = 0;
260
261 val = mt76_rr(dev, MT_PLE_AC_QEMPTY(acs, index));
262 ctrl = BIT(31) | BIT(15) | (acs << 8);
263
264 for (j = 0; j < 32; j++) {
265 if (val & BIT(j))
266 continue;
267
268 mt76_wr(dev, MT_PLE_FL_Q0_CTRL,
269 ctrl | (j + (index << 5)));
270 qlen += mt76_get_field(dev, MT_PLE_FL_Q3_CTRL,
271 GENMASK(11, 0));
272 }
273 seq_printf(s, "AC%d%d: queued=%d\n", acs, index, qlen);
274 }
275
276 return 0;
277 }
278
279 static int
mt7915_queues_read(struct seq_file * s,void * data)280 mt7915_queues_read(struct seq_file *s, void *data)
281 {
282 struct mt7915_dev *dev = dev_get_drvdata(s->private);
283 static const struct {
284 char *queue;
285 int id;
286 } queue_map[] = {
287 { "WFDMA0", MT_TXQ_BE },
288 { "MCUWM", MT_TXQ_MCU },
289 { "MCUWA", MT_TXQ_MCU_WA },
290 { "MCUFWQ", MT_TXQ_FWDL },
291 };
292 int i;
293
294 for (i = 0; i < ARRAY_SIZE(queue_map); i++) {
295 struct mt76_queue *q = dev->mt76.q_tx[queue_map[i].id];
296
297 if (!q)
298 continue;
299
300 seq_printf(s,
301 "%s: queued=%d head=%d tail=%d\n",
302 queue_map[i].queue, q->queued, q->head,
303 q->tail);
304 }
305
306 return 0;
307 }
308
309 static void
mt7915_puts_rate_txpower(struct seq_file * s,s8 * delta,s8 txpower_cur,int band)310 mt7915_puts_rate_txpower(struct seq_file *s, s8 *delta,
311 s8 txpower_cur, int band)
312 {
313 static const char * const sku_group_name[] = {
314 "CCK", "OFDM", "HT20", "HT40",
315 "VHT20", "VHT40", "VHT80", "VHT160",
316 "RU26", "RU52", "RU106", "RU242/SU20",
317 "RU484/SU40", "RU996/SU80", "RU2x996/SU160"
318 };
319 s8 txpower[MT7915_SKU_RATE_NUM];
320 int i, idx = 0;
321
322 for (i = 0; i < MT7915_SKU_RATE_NUM; i++)
323 txpower[i] = DIV_ROUND_UP(txpower_cur + delta[i], 2);
324
325 for (i = 0; i < MAX_SKU_RATE_GROUP_NUM; i++) {
326 const struct sku_group *sku = &mt7915_sku_groups[i];
327 u32 offset = sku->offset[band];
328
329 if (!offset) {
330 idx += sku->len;
331 continue;
332 }
333
334 mt76_seq_puts_array(s, sku_group_name[i],
335 txpower + idx, sku->len);
336 idx += sku->len;
337 }
338 }
339
340 static int
mt7915_read_rate_txpower(struct seq_file * s,void * data)341 mt7915_read_rate_txpower(struct seq_file *s, void *data)
342 {
343 struct mt7915_dev *dev = dev_get_drvdata(s->private);
344 struct mt76_phy *mphy = &dev->mphy;
345 enum nl80211_band band = mphy->chandef.chan->band;
346 s8 *delta = dev->rate_power[band];
347 s8 txpower_base = mphy->txpower_cur - delta[MT7915_SKU_MAX_DELTA_IDX];
348
349 seq_puts(s, "Band 0:\n");
350 mt7915_puts_rate_txpower(s, delta, txpower_base, band);
351
352 if (dev->mt76.phy2) {
353 mphy = dev->mt76.phy2;
354 band = mphy->chandef.chan->band;
355 delta = dev->rate_power[band];
356 txpower_base = mphy->txpower_cur -
357 delta[MT7915_SKU_MAX_DELTA_IDX];
358
359 seq_puts(s, "Band 1:\n");
360 mt7915_puts_rate_txpower(s, delta, txpower_base, band);
361 }
362
363 return 0;
364 }
365
mt7915_init_debugfs(struct mt7915_dev * dev)366 int mt7915_init_debugfs(struct mt7915_dev *dev)
367 {
368 struct dentry *dir;
369
370 dir = mt76_register_debugfs(&dev->mt76);
371 if (!dir)
372 return -ENOMEM;
373
374 debugfs_create_devm_seqfile(dev->mt76.dev, "queues", dir,
375 mt7915_queues_read);
376 debugfs_create_devm_seqfile(dev->mt76.dev, "acq", dir,
377 mt7915_queues_acq);
378 debugfs_create_file("tx_stats", 0400, dir, dev, &fops_tx_stats);
379 debugfs_create_file("dbdc", 0600, dir, dev, &fops_dbdc);
380 debugfs_create_file("fw_debug", 0600, dir, dev, &fops_fw_debug);
381 debugfs_create_u32("dfs_hw_pattern", 0400, dir, &dev->hw_pattern);
382 /* test knobs */
383 debugfs_create_file("radar_trigger", 0200, dir, dev,
384 &fops_radar_trigger);
385 debugfs_create_file("ser_trigger", 0200, dir, dev, &fops_ser_trigger);
386 debugfs_create_devm_seqfile(dev->mt76.dev, "temperature", dir,
387 mt7915_read_temperature);
388 debugfs_create_devm_seqfile(dev->mt76.dev, "txpower_sku", dir,
389 mt7915_read_rate_txpower);
390
391 return 0;
392 }
393
394 #ifdef CONFIG_MAC80211_DEBUGFS
395 /** per-station debugfs **/
396
397 /* usage: <tx mode> <ldpc> <stbc> <bw> <gi> <nss> <mcs> */
mt7915_sta_fixed_rate_set(void * data,u64 rate)398 static int mt7915_sta_fixed_rate_set(void *data, u64 rate)
399 {
400 struct ieee80211_sta *sta = data;
401 struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv;
402
403 return mt7915_mcu_set_fixed_rate(msta->vif->phy->dev, sta, rate);
404 }
405
406 DEFINE_DEBUGFS_ATTRIBUTE(fops_fixed_rate, NULL,
407 mt7915_sta_fixed_rate_set, "%llx\n");
408
409 static int
mt7915_sta_stats_read(struct seq_file * s,void * data)410 mt7915_sta_stats_read(struct seq_file *s, void *data)
411 {
412 struct ieee80211_sta *sta = s->private;
413 struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv;
414 struct mt7915_sta_stats *stats = &msta->stats;
415 struct rate_info *rate = &stats->prob_rate;
416 static const char * const bw[] = {
417 "BW20", "BW5", "BW10", "BW40",
418 "BW80", "BW160", "BW_HE_RU"
419 };
420
421 if (!rate->legacy && !rate->flags)
422 return 0;
423
424 seq_puts(s, "Probing rate - ");
425 if (rate->flags & RATE_INFO_FLAGS_MCS)
426 seq_puts(s, "HT ");
427 else if (rate->flags & RATE_INFO_FLAGS_VHT_MCS)
428 seq_puts(s, "VHT ");
429 else if (rate->flags & RATE_INFO_FLAGS_HE_MCS)
430 seq_puts(s, "HE ");
431 else
432 seq_printf(s, "Bitrate %d\n", rate->legacy);
433
434 if (rate->flags) {
435 seq_printf(s, "%s NSS%d MCS%d ",
436 bw[rate->bw], rate->nss, rate->mcs);
437
438 if (rate->flags & RATE_INFO_FLAGS_SHORT_GI)
439 seq_puts(s, "SGI ");
440 else if (rate->he_gi)
441 seq_puts(s, "HE GI ");
442
443 if (rate->he_dcm)
444 seq_puts(s, "DCM ");
445 }
446
447 seq_printf(s, "\nPPDU PER: %ld.%1ld%%\n",
448 stats->per / 10, stats->per % 10);
449
450 return 0;
451 }
452
453 static int
mt7915_sta_stats_open(struct inode * inode,struct file * f)454 mt7915_sta_stats_open(struct inode *inode, struct file *f)
455 {
456 return single_open(f, mt7915_sta_stats_read, inode->i_private);
457 }
458
459 static const struct file_operations fops_sta_stats = {
460 .open = mt7915_sta_stats_open,
461 .read = seq_read,
462 .llseek = seq_lseek,
463 .release = single_release,
464 .owner = THIS_MODULE,
465 };
466
mt7915_sta_add_debugfs(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct dentry * dir)467 void mt7915_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
468 struct ieee80211_sta *sta, struct dentry *dir)
469 {
470 debugfs_create_file("fixed_rate", 0600, dir, sta, &fops_fixed_rate);
471 debugfs_create_file("stats", 0400, dir, sta, &fops_sta_stats);
472 }
473 #endif
474