1 // SPDX-License-Identifier: ISC
2 /*
3  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
4  */
5 
6 #include <linux/debugfs.h>
7 #include "mt76x02.h"
8 
9 static int
mt76x02_ampdu_stat_show(struct seq_file * file,void * data)10 mt76x02_ampdu_stat_show(struct seq_file *file, void *data)
11 {
12 	struct mt76x02_dev *dev = file->private;
13 	int i, j;
14 
15 	for (i = 0; i < 4; i++) {
16 		seq_puts(file, "Length: ");
17 		for (j = 0; j < 8; j++)
18 			seq_printf(file, "%8d | ", i * 8 + j + 1);
19 		seq_puts(file, "\n");
20 		seq_puts(file, "Count:  ");
21 		for (j = 0; j < 8; j++)
22 			seq_printf(file, "%8d | ",
23 				   dev->mt76.aggr_stats[i * 8 + j]);
24 		seq_puts(file, "\n");
25 		seq_puts(file, "--------");
26 		for (j = 0; j < 8; j++)
27 			seq_puts(file, "-----------");
28 		seq_puts(file, "\n");
29 	}
30 
31 	return 0;
32 }
33 
34 DEFINE_SHOW_ATTRIBUTE(mt76x02_ampdu_stat);
35 
read_txpower(struct seq_file * file,void * data)36 static int read_txpower(struct seq_file *file, void *data)
37 {
38 	struct mt76x02_dev *dev = dev_get_drvdata(file->private);
39 
40 	seq_printf(file, "Target power: %d\n", dev->target_power);
41 
42 	mt76_seq_puts_array(file, "Delta", dev->target_power_delta,
43 			    ARRAY_SIZE(dev->target_power_delta));
44 	return 0;
45 }
46 
47 static int
mt76x02_dfs_stat_show(struct seq_file * file,void * data)48 mt76x02_dfs_stat_show(struct seq_file *file, void *data)
49 {
50 	struct mt76x02_dev *dev = file->private;
51 	struct mt76x02_dfs_pattern_detector *dfs_pd = &dev->dfs_pd;
52 	int i;
53 
54 	seq_printf(file, "allocated sequences:\t%d\n",
55 		   dfs_pd->seq_stats.seq_pool_len);
56 	seq_printf(file, "used sequences:\t\t%d\n",
57 		   dfs_pd->seq_stats.seq_len);
58 	seq_puts(file, "\n");
59 
60 	for (i = 0; i < MT_DFS_NUM_ENGINES; i++) {
61 		seq_printf(file, "engine: %d\n", i);
62 		seq_printf(file, "  hw pattern detected:\t%d\n",
63 			   dfs_pd->stats[i].hw_pattern);
64 		seq_printf(file, "  hw pulse discarded:\t%d\n",
65 			   dfs_pd->stats[i].hw_pulse_discarded);
66 		seq_printf(file, "  sw pattern detected:\t%d\n",
67 			   dfs_pd->stats[i].sw_pattern);
68 	}
69 
70 	return 0;
71 }
72 
73 DEFINE_SHOW_ATTRIBUTE(mt76x02_dfs_stat);
74 
read_agc(struct seq_file * file,void * data)75 static int read_agc(struct seq_file *file, void *data)
76 {
77 	struct mt76x02_dev *dev = dev_get_drvdata(file->private);
78 
79 	seq_printf(file, "avg_rssi: %d\n", dev->cal.avg_rssi_all);
80 	seq_printf(file, "low_gain: %d\n", dev->cal.low_gain);
81 	seq_printf(file, "false_cca: %d\n", dev->cal.false_cca);
82 	seq_printf(file, "agc_gain_adjust: %d\n", dev->cal.agc_gain_adjust);
83 
84 	return 0;
85 }
86 
87 static int
mt76_edcca_set(void * data,u64 val)88 mt76_edcca_set(void *data, u64 val)
89 {
90 	struct mt76x02_dev *dev = data;
91 	enum nl80211_dfs_regions region = dev->mt76.region;
92 
93 	mutex_lock(&dev->mt76.mutex);
94 
95 	dev->ed_monitor_enabled = !!val;
96 	dev->ed_monitor = dev->ed_monitor_enabled &&
97 			  region == NL80211_DFS_ETSI;
98 	mt76x02_edcca_init(dev);
99 
100 	mutex_unlock(&dev->mt76.mutex);
101 
102 	return 0;
103 }
104 
105 static int
mt76_edcca_get(void * data,u64 * val)106 mt76_edcca_get(void *data, u64 *val)
107 {
108 	struct mt76x02_dev *dev = data;
109 
110 	*val = dev->ed_monitor_enabled;
111 	return 0;
112 }
113 
114 DEFINE_DEBUGFS_ATTRIBUTE(fops_edcca, mt76_edcca_get, mt76_edcca_set,
115 			 "%lld\n");
116 
mt76x02_init_debugfs(struct mt76x02_dev * dev)117 void mt76x02_init_debugfs(struct mt76x02_dev *dev)
118 {
119 	struct dentry *dir;
120 
121 	dir = mt76_register_debugfs(&dev->mt76);
122 	if (!dir)
123 		return;
124 
125 	debugfs_create_devm_seqfile(dev->mt76.dev, "xmit-queues", dir,
126 				    mt76_queues_read);
127 	debugfs_create_u8("temperature", 0400, dir, &dev->cal.temp);
128 	debugfs_create_bool("tpc", 0600, dir, &dev->enable_tpc);
129 
130 	debugfs_create_file("edcca", 0600, dir, dev, &fops_edcca);
131 	debugfs_create_file("ampdu_stat", 0400, dir, dev, &mt76x02_ampdu_stat_fops);
132 	debugfs_create_file("dfs_stats", 0400, dir, dev, &mt76x02_dfs_stat_fops);
133 	debugfs_create_devm_seqfile(dev->mt76.dev, "txpower", dir,
134 				    read_txpower);
135 
136 	debugfs_create_devm_seqfile(dev->mt76.dev, "agc", dir, read_agc);
137 
138 	debugfs_create_u32("tx_hang_reset", 0400, dir, &dev->tx_hang_reset);
139 }
140 EXPORT_SYMBOL_GPL(mt76x02_init_debugfs);
141