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 */
10static 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
36DEFINE_DEBUGFS_ATTRIBUTE(fops_ser_trigger, NULL,
37			 mt7915_ser_trigger_set, "%lld\n");
38
39static int
40mt7915_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
47DEFINE_DEBUGFS_ATTRIBUTE(fops_radar_trigger, NULL,
48			 mt7915_radar_trigger, "%lld\n");
49
50static int
51mt7915_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
63static int
64mt7915_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
73DEFINE_DEBUGFS_ATTRIBUTE(fops_dbdc, mt7915_dbdc_get,
74			 mt7915_dbdc_set, "%lld\n");
75
76static int
77mt7915_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
98static int
99mt7915_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
108DEFINE_DEBUGFS_ATTRIBUTE(fops_fw_debug, mt7915_fw_debug_get,
109			 mt7915_fw_debug_set, "%lld\n");
110
111static void
112mt7915_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
145static void
146mt7915_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
194static int
195mt7915_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
225static int
226mt7915_tx_stats_open(struct inode *inode, struct file *f)
227{
228	return single_open(f, mt7915_tx_stats_read, inode->i_private);
229}
230
231static 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
239static 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
251static int
252mt7915_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
279static int
280mt7915_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
309static void
310mt7915_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
340static int
341mt7915_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
366int 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> */
398static 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
406DEFINE_DEBUGFS_ATTRIBUTE(fops_fixed_rate, NULL,
407			 mt7915_sta_fixed_rate_set, "%llx\n");
408
409static int
410mt7915_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
453static int
454mt7915_sta_stats_open(struct inode *inode, struct file *f)
455{
456	return single_open(f, mt7915_sta_stats_read, inode->i_private);
457}
458
459static 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
467void 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