1 // SPDX-License-Identifier: ISC
2 /* Copyright (C) 2020 MediaTek Inc. */
3
4 #include "mt7921.h"
5 #include "eeprom.h"
6
7 static int
mt7921_reg_set(void * data,u64 val)8 mt7921_reg_set(void *data, u64 val)
9 {
10 struct mt7921_dev *dev = data;
11
12 mt7921_mutex_acquire(dev);
13 mt76_wr(dev, dev->mt76.debugfs_reg, val);
14 mt7921_mutex_release(dev);
15
16 return 0;
17 }
18
19 static int
mt7921_reg_get(void * data,u64 * val)20 mt7921_reg_get(void *data, u64 *val)
21 {
22 struct mt7921_dev *dev = data;
23
24 mt7921_mutex_acquire(dev);
25 *val = mt76_rr(dev, dev->mt76.debugfs_reg);
26 mt7921_mutex_release(dev);
27
28 return 0;
29 }
30
31 DEFINE_DEBUGFS_ATTRIBUTE(fops_regval, mt7921_reg_get, mt7921_reg_set,
32 "0x%08llx\n");
33 static int
mt7921_fw_debug_set(void * data,u64 val)34 mt7921_fw_debug_set(void *data, u64 val)
35 {
36 struct mt7921_dev *dev = data;
37
38 mt7921_mutex_acquire(dev);
39
40 dev->fw_debug = (u8)val;
41 mt7921_mcu_fw_log_2_host(dev, dev->fw_debug);
42
43 mt7921_mutex_release(dev);
44
45 return 0;
46 }
47
48 static int
mt7921_fw_debug_get(void * data,u64 * val)49 mt7921_fw_debug_get(void *data, u64 *val)
50 {
51 struct mt7921_dev *dev = data;
52
53 *val = dev->fw_debug;
54
55 return 0;
56 }
57
58 DEFINE_DEBUGFS_ATTRIBUTE(fops_fw_debug, mt7921_fw_debug_get,
59 mt7921_fw_debug_set, "%lld\n");
60
61 static void
mt7921_ampdu_stat_read_phy(struct mt7921_phy * phy,struct seq_file * file)62 mt7921_ampdu_stat_read_phy(struct mt7921_phy *phy,
63 struct seq_file *file)
64 {
65 struct mt7921_dev *dev = file->private;
66 int bound[15], range[4], i;
67
68 if (!phy)
69 return;
70
71 /* Tx ampdu stat */
72 for (i = 0; i < ARRAY_SIZE(range); i++)
73 range[i] = mt76_rr(dev, MT_MIB_ARNG(0, i));
74
75 for (i = 0; i < ARRAY_SIZE(bound); i++)
76 bound[i] = MT_MIB_ARNCR_RANGE(range[i / 4], i % 4) + 1;
77
78 seq_printf(file, "\nPhy0\n");
79
80 seq_printf(file, "Length: %8d | ", bound[0]);
81 for (i = 0; i < ARRAY_SIZE(bound) - 1; i++)
82 seq_printf(file, "%3d %3d | ", bound[i] + 1, bound[i + 1]);
83
84 seq_puts(file, "\nCount: ");
85 for (i = 0; i < ARRAY_SIZE(bound); i++)
86 seq_printf(file, "%8d | ", dev->mt76.aggr_stats[i]);
87 seq_puts(file, "\n");
88
89 seq_printf(file, "BA miss count: %d\n", phy->mib.ba_miss_cnt);
90 }
91
92 static int
mt7921_tx_stats_show(struct seq_file * file,void * data)93 mt7921_tx_stats_show(struct seq_file *file, void *data)
94 {
95 struct mt7921_dev *dev = file->private;
96 int stat[8], i, n;
97
98 mt7921_mutex_acquire(dev);
99
100 mt7921_ampdu_stat_read_phy(&dev->phy, file);
101
102 /* Tx amsdu info */
103 seq_puts(file, "Tx MSDU stat:\n");
104 for (i = 0, n = 0; i < ARRAY_SIZE(stat); i++) {
105 stat[i] = mt76_rr(dev, MT_PLE_AMSDU_PACK_MSDU_CNT(i));
106 n += stat[i];
107 }
108
109 mt7921_mutex_release(dev);
110
111 for (i = 0; i < ARRAY_SIZE(stat); i++) {
112 seq_printf(file, "AMSDU pack count of %d MSDU in TXD: 0x%x ",
113 i + 1, stat[i]);
114 if (n != 0)
115 seq_printf(file, "(%d%%)\n", stat[i] * 100 / n);
116 else
117 seq_puts(file, "\n");
118 }
119
120 return 0;
121 }
122
123 DEFINE_SHOW_ATTRIBUTE(mt7921_tx_stats);
124
125 static int
mt7921_queues_acq(struct seq_file * s,void * data)126 mt7921_queues_acq(struct seq_file *s, void *data)
127 {
128 struct mt7921_dev *dev = dev_get_drvdata(s->private);
129 int i;
130
131 mt7921_mutex_acquire(dev);
132
133 for (i = 0; i < 4; i++) {
134 u32 ctrl, val, qlen = 0;
135 int j;
136
137 val = mt76_rr(dev, MT_PLE_AC_QEMPTY(i));
138 ctrl = BIT(31) | BIT(11) | (i << 24);
139
140 for (j = 0; j < 32; j++) {
141 if (val & BIT(j))
142 continue;
143
144 mt76_wr(dev, MT_PLE_FL_Q0_CTRL, ctrl | j);
145 qlen += mt76_get_field(dev, MT_PLE_FL_Q3_CTRL,
146 GENMASK(11, 0));
147 }
148 seq_printf(s, "AC%d: queued=%d\n", i, qlen);
149 }
150
151 mt7921_mutex_release(dev);
152
153 return 0;
154 }
155
156 static int
mt7921_queues_read(struct seq_file * s,void * data)157 mt7921_queues_read(struct seq_file *s, void *data)
158 {
159 struct mt7921_dev *dev = dev_get_drvdata(s->private);
160 struct {
161 struct mt76_queue *q;
162 char *queue;
163 } queue_map[] = {
164 { dev->mphy.q_tx[MT_TXQ_BE], "WFDMA0" },
165 { dev->mt76.q_mcu[MT_MCUQ_WM], "MCUWM" },
166 { dev->mt76.q_mcu[MT_MCUQ_FWDL], "MCUFWQ" },
167 };
168 int i;
169
170 for (i = 0; i < ARRAY_SIZE(queue_map); i++) {
171 struct mt76_queue *q = queue_map[i].q;
172
173 if (!q)
174 continue;
175
176 seq_printf(s,
177 "%s: queued=%d head=%d tail=%d\n",
178 queue_map[i].queue, q->queued, q->head,
179 q->tail);
180 }
181
182 return 0;
183 }
184
185 static void
mt7921_seq_puts_array(struct seq_file * file,const char * str,s8 * val,int len)186 mt7921_seq_puts_array(struct seq_file *file, const char *str,
187 s8 *val, int len)
188 {
189 int i;
190
191 seq_printf(file, "%-16s:", str);
192 for (i = 0; i < len; i++)
193 if (val[i] == 127)
194 seq_printf(file, " %6s", "N.A");
195 else
196 seq_printf(file, " %6d", val[i]);
197 seq_puts(file, "\n");
198 }
199
200 #define mt7921_print_txpwr_entry(prefix, rate) \
201 ({ \
202 mt7921_seq_puts_array(s, #prefix " (user)", \
203 txpwr.data[TXPWR_USER].rate, \
204 ARRAY_SIZE(txpwr.data[TXPWR_USER].rate)); \
205 mt7921_seq_puts_array(s, #prefix " (eeprom)", \
206 txpwr.data[TXPWR_EEPROM].rate, \
207 ARRAY_SIZE(txpwr.data[TXPWR_EEPROM].rate)); \
208 mt7921_seq_puts_array(s, #prefix " (tmac)", \
209 txpwr.data[TXPWR_MAC].rate, \
210 ARRAY_SIZE(txpwr.data[TXPWR_MAC].rate)); \
211 })
212
213 static int
mt7921_txpwr(struct seq_file * s,void * data)214 mt7921_txpwr(struct seq_file *s, void *data)
215 {
216 struct mt7921_dev *dev = dev_get_drvdata(s->private);
217 struct mt7921_txpwr txpwr;
218 int ret;
219
220 mt7921_mutex_acquire(dev);
221 ret = mt7921_get_txpwr_info(dev, &txpwr);
222 mt7921_mutex_release(dev);
223
224 if (ret)
225 return ret;
226
227 seq_printf(s, "Tx power table (channel %d)\n", txpwr.ch);
228 seq_printf(s, "%-16s %6s %6s %6s %6s\n",
229 " ", "1m", "2m", "5m", "11m");
230 mt7921_print_txpwr_entry(CCK, cck);
231
232 seq_printf(s, "%-16s %6s %6s %6s %6s %6s %6s %6s %6s\n",
233 " ", "6m", "9m", "12m", "18m", "24m", "36m",
234 "48m", "54m");
235 mt7921_print_txpwr_entry(OFDM, ofdm);
236
237 seq_printf(s, "%-16s %6s %6s %6s %6s %6s %6s %6s %6s\n",
238 " ", "mcs0", "mcs1", "mcs2", "mcs3", "mcs4", "mcs5",
239 "mcs6", "mcs7");
240 mt7921_print_txpwr_entry(HT20, ht20);
241
242 seq_printf(s, "%-16s %6s %6s %6s %6s %6s %6s %6s %6s %6s\n",
243 " ", "mcs0", "mcs1", "mcs2", "mcs3", "mcs4", "mcs5",
244 "mcs6", "mcs7", "mcs32");
245 mt7921_print_txpwr_entry(HT40, ht40);
246
247 seq_printf(s, "%-16s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s\n",
248 " ", "mcs0", "mcs1", "mcs2", "mcs3", "mcs4", "mcs5",
249 "mcs6", "mcs7", "mcs8", "mcs9", "mcs10", "mcs11");
250 mt7921_print_txpwr_entry(VHT20, vht20);
251 mt7921_print_txpwr_entry(VHT40, vht40);
252 mt7921_print_txpwr_entry(VHT80, vht80);
253 mt7921_print_txpwr_entry(VHT160, vht160);
254 mt7921_print_txpwr_entry(HE26, he26);
255 mt7921_print_txpwr_entry(HE52, he52);
256 mt7921_print_txpwr_entry(HE106, he106);
257 mt7921_print_txpwr_entry(HE242, he242);
258 mt7921_print_txpwr_entry(HE484, he484);
259 mt7921_print_txpwr_entry(HE996, he996);
260 mt7921_print_txpwr_entry(HE996x2, he996x2);
261
262 return 0;
263 }
264
265 static void
mt7921_pm_interface_iter(void * priv,u8 * mac,struct ieee80211_vif * vif)266 mt7921_pm_interface_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
267 {
268 struct mt7921_dev *dev = priv;
269
270 mt7921_mcu_set_beacon_filter(dev, vif, dev->pm.enable);
271 }
272
273 static int
mt7921_pm_set(void * data,u64 val)274 mt7921_pm_set(void *data, u64 val)
275 {
276 struct mt7921_dev *dev = data;
277 struct mt76_connac_pm *pm = &dev->pm;
278
279 mutex_lock(&dev->mt76.mutex);
280
281 if (val == pm->enable)
282 goto out;
283
284 if (!pm->enable) {
285 pm->stats.last_wake_event = jiffies;
286 pm->stats.last_doze_event = jiffies;
287 }
288 /* make sure the chip is awake here and ps_work is scheduled
289 * just at end of the this routine.
290 */
291 pm->enable = false;
292 mt76_connac_pm_wake(&dev->mphy, pm);
293
294 pm->enable = val;
295 ieee80211_iterate_active_interfaces(mt76_hw(dev),
296 IEEE80211_IFACE_ITER_RESUME_ALL,
297 mt7921_pm_interface_iter, dev);
298
299 mt76_connac_mcu_set_deep_sleep(&dev->mt76, pm->ds_enable);
300 mt76_connac_power_save_sched(&dev->mphy, pm);
301 out:
302 mutex_unlock(&dev->mt76.mutex);
303
304 return 0;
305 }
306
307 static int
mt7921_pm_get(void * data,u64 * val)308 mt7921_pm_get(void *data, u64 *val)
309 {
310 struct mt7921_dev *dev = data;
311
312 *val = dev->pm.enable;
313
314 return 0;
315 }
316
317 DEFINE_DEBUGFS_ATTRIBUTE(fops_pm, mt7921_pm_get, mt7921_pm_set, "%lld\n");
318
319 static int
mt7921_deep_sleep_set(void * data,u64 val)320 mt7921_deep_sleep_set(void *data, u64 val)
321 {
322 struct mt7921_dev *dev = data;
323 struct mt76_connac_pm *pm = &dev->pm;
324 bool enable = !!val;
325
326 mt7921_mutex_acquire(dev);
327 if (pm->ds_enable != enable) {
328 mt76_connac_mcu_set_deep_sleep(&dev->mt76, enable);
329 pm->ds_enable = enable;
330 }
331 mt7921_mutex_release(dev);
332
333 return 0;
334 }
335
336 static int
mt7921_deep_sleep_get(void * data,u64 * val)337 mt7921_deep_sleep_get(void *data, u64 *val)
338 {
339 struct mt7921_dev *dev = data;
340
341 *val = dev->pm.ds_enable;
342
343 return 0;
344 }
345
346 DEFINE_DEBUGFS_ATTRIBUTE(fops_ds, mt7921_deep_sleep_get,
347 mt7921_deep_sleep_set, "%lld\n");
348
349 static int
mt7921_pm_stats(struct seq_file * s,void * data)350 mt7921_pm_stats(struct seq_file *s, void *data)
351 {
352 struct mt7921_dev *dev = dev_get_drvdata(s->private);
353 struct mt76_connac_pm *pm = &dev->pm;
354
355 unsigned long awake_time = pm->stats.awake_time;
356 unsigned long doze_time = pm->stats.doze_time;
357
358 if (!test_bit(MT76_STATE_PM, &dev->mphy.state))
359 awake_time += jiffies - pm->stats.last_wake_event;
360 else
361 doze_time += jiffies - pm->stats.last_doze_event;
362
363 seq_printf(s, "awake time: %14u\ndoze time: %15u\n",
364 jiffies_to_msecs(awake_time),
365 jiffies_to_msecs(doze_time));
366
367 seq_printf(s, "low power wakes: %9d\n", pm->stats.lp_wake);
368
369 return 0;
370 }
371
372 static int
mt7921_pm_idle_timeout_set(void * data,u64 val)373 mt7921_pm_idle_timeout_set(void *data, u64 val)
374 {
375 struct mt7921_dev *dev = data;
376
377 dev->pm.idle_timeout = msecs_to_jiffies(val);
378
379 return 0;
380 }
381
382 static int
mt7921_pm_idle_timeout_get(void * data,u64 * val)383 mt7921_pm_idle_timeout_get(void *data, u64 *val)
384 {
385 struct mt7921_dev *dev = data;
386
387 *val = jiffies_to_msecs(dev->pm.idle_timeout);
388
389 return 0;
390 }
391
392 DEFINE_DEBUGFS_ATTRIBUTE(fops_pm_idle_timeout, mt7921_pm_idle_timeout_get,
393 mt7921_pm_idle_timeout_set, "%lld\n");
394
mt7921_chip_reset(void * data,u64 val)395 static int mt7921_chip_reset(void *data, u64 val)
396 {
397 struct mt7921_dev *dev = data;
398 int ret = 0;
399
400 switch (val) {
401 case 1:
402 /* Reset wifisys directly. */
403 mt7921_reset(&dev->mt76);
404 break;
405 default:
406 /* Collect the core dump before reset wifisys. */
407 mt7921_mutex_acquire(dev);
408 ret = mt76_connac_mcu_chip_config(&dev->mt76);
409 mt7921_mutex_release(dev);
410 break;
411 }
412
413 return ret;
414 }
415
416 DEFINE_DEBUGFS_ATTRIBUTE(fops_reset, NULL, mt7921_chip_reset, "%lld\n");
417
mt7921_init_debugfs(struct mt7921_dev * dev)418 int mt7921_init_debugfs(struct mt7921_dev *dev)
419 {
420 struct dentry *dir;
421
422 dir = mt76_register_debugfs_fops(&dev->mt76, &fops_regval);
423 if (!dir)
424 return -ENOMEM;
425
426 debugfs_create_devm_seqfile(dev->mt76.dev, "queues", dir,
427 mt7921_queues_read);
428 debugfs_create_devm_seqfile(dev->mt76.dev, "acq", dir,
429 mt7921_queues_acq);
430 debugfs_create_devm_seqfile(dev->mt76.dev, "txpower_sku", dir,
431 mt7921_txpwr);
432 debugfs_create_file("tx_stats", 0400, dir, dev, &mt7921_tx_stats_fops);
433 debugfs_create_file("fw_debug", 0600, dir, dev, &fops_fw_debug);
434 debugfs_create_file("runtime-pm", 0600, dir, dev, &fops_pm);
435 debugfs_create_file("idle-timeout", 0600, dir, dev,
436 &fops_pm_idle_timeout);
437 debugfs_create_file("chip_reset", 0600, dir, dev, &fops_reset);
438 debugfs_create_devm_seqfile(dev->mt76.dev, "runtime_pm_stats", dir,
439 mt7921_pm_stats);
440 debugfs_create_file("deep-sleep", 0600, dir, dev, &fops_ds);
441
442 return 0;
443 }
444