1 /*
2 * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17 #include <linux/debugfs.h>
18 #include "mt76x2.h"
19
20 static int
mt76x2_ampdu_stat_read(struct seq_file * file,void * data)21 mt76x2_ampdu_stat_read(struct seq_file *file, void *data)
22 {
23 struct mt76x2_dev *dev = file->private;
24 int i, j;
25
26 for (i = 0; i < 4; i++) {
27 seq_puts(file, "Length: ");
28 for (j = 0; j < 8; j++)
29 seq_printf(file, "%8d | ", i * 8 + j + 1);
30 seq_puts(file, "\n");
31 seq_puts(file, "Count: ");
32 for (j = 0; j < 8; j++)
33 seq_printf(file, "%8d | ", dev->aggr_stats[i * 8 + j]);
34 seq_puts(file, "\n");
35 seq_puts(file, "--------");
36 for (j = 0; j < 8; j++)
37 seq_puts(file, "-----------");
38 seq_puts(file, "\n");
39 }
40
41 return 0;
42 }
43
44 static int
mt76x2_ampdu_stat_open(struct inode * inode,struct file * f)45 mt76x2_ampdu_stat_open(struct inode *inode, struct file *f)
46 {
47 return single_open(f, mt76x2_ampdu_stat_read, inode->i_private);
48 }
49
50 static void
seq_puts_array(struct seq_file * file,const char * str,s8 * val,int len)51 seq_puts_array(struct seq_file *file, const char *str, s8 *val, int len)
52 {
53 int i;
54
55 seq_printf(file, "%10s:", str);
56 for (i = 0; i < len; i++)
57 seq_printf(file, " %2d", val[i]);
58 seq_puts(file, "\n");
59 }
60
read_txpower(struct seq_file * file,void * data)61 static int read_txpower(struct seq_file *file, void *data)
62 {
63 struct mt76x2_dev *dev = dev_get_drvdata(file->private);
64
65 seq_printf(file, "Target power: %d\n", dev->target_power);
66
67 seq_puts_array(file, "Delta", dev->target_power_delta,
68 ARRAY_SIZE(dev->target_power_delta));
69 seq_puts_array(file, "CCK", dev->rate_power.cck,
70 ARRAY_SIZE(dev->rate_power.cck));
71 seq_puts_array(file, "OFDM", dev->rate_power.ofdm,
72 ARRAY_SIZE(dev->rate_power.ofdm));
73 seq_puts_array(file, "HT", dev->rate_power.ht,
74 ARRAY_SIZE(dev->rate_power.ht));
75 seq_puts_array(file, "VHT", dev->rate_power.vht,
76 ARRAY_SIZE(dev->rate_power.vht));
77 return 0;
78 }
79
80 static const struct file_operations fops_ampdu_stat = {
81 .open = mt76x2_ampdu_stat_open,
82 .read = seq_read,
83 .llseek = seq_lseek,
84 .release = single_release,
85 };
86
87 static int
mt76x2_dfs_stat_read(struct seq_file * file,void * data)88 mt76x2_dfs_stat_read(struct seq_file *file, void *data)
89 {
90 int i;
91 struct mt76x2_dev *dev = file->private;
92 struct mt76x2_dfs_pattern_detector *dfs_pd = &dev->dfs_pd;
93
94 seq_printf(file, "allocated sequences:\t%d\n",
95 dfs_pd->seq_stats.seq_pool_len);
96 seq_printf(file, "used sequences:\t\t%d\n",
97 dfs_pd->seq_stats.seq_len);
98 seq_puts(file, "\n");
99
100 for (i = 0; i < MT_DFS_NUM_ENGINES; i++) {
101 seq_printf(file, "engine: %d\n", i);
102 seq_printf(file, " hw pattern detected:\t%d\n",
103 dfs_pd->stats[i].hw_pattern);
104 seq_printf(file, " hw pulse discarded:\t%d\n",
105 dfs_pd->stats[i].hw_pulse_discarded);
106 seq_printf(file, " sw pattern detected:\t%d\n",
107 dfs_pd->stats[i].sw_pattern);
108 }
109
110 return 0;
111 }
112
113 static int
mt76x2_dfs_stat_open(struct inode * inode,struct file * f)114 mt76x2_dfs_stat_open(struct inode *inode, struct file *f)
115 {
116 return single_open(f, mt76x2_dfs_stat_read, inode->i_private);
117 }
118
119 static const struct file_operations fops_dfs_stat = {
120 .open = mt76x2_dfs_stat_open,
121 .read = seq_read,
122 .llseek = seq_lseek,
123 .release = single_release,
124 };
125
read_agc(struct seq_file * file,void * data)126 static int read_agc(struct seq_file *file, void *data)
127 {
128 struct mt76x2_dev *dev = dev_get_drvdata(file->private);
129
130 seq_printf(file, "avg_rssi: %d\n", dev->cal.avg_rssi_all);
131 seq_printf(file, "low_gain: %d\n", dev->cal.low_gain);
132 seq_printf(file, "false_cca: %d\n", dev->cal.false_cca);
133 seq_printf(file, "agc_gain_adjust: %d\n", dev->cal.agc_gain_adjust);
134
135 return 0;
136 }
137
mt76x2_init_debugfs(struct mt76x2_dev * dev)138 void mt76x2_init_debugfs(struct mt76x2_dev *dev)
139 {
140 struct dentry *dir;
141
142 dir = mt76_register_debugfs(&dev->mt76);
143 if (!dir)
144 return;
145
146 debugfs_create_u8("temperature", 0400, dir, &dev->cal.temp);
147 debugfs_create_bool("tpc", 0600, dir, &dev->enable_tpc);
148
149 debugfs_create_file("ampdu_stat", 0400, dir, dev, &fops_ampdu_stat);
150 debugfs_create_file("dfs_stats", 0400, dir, dev, &fops_dfs_stat);
151 debugfs_create_devm_seqfile(dev->mt76.dev, "txpower", dir,
152 read_txpower);
153
154 debugfs_create_devm_seqfile(dev->mt76.dev, "agc", dir, read_agc);
155 }
156 EXPORT_SYMBOL_GPL(mt76x2_init_debugfs);
157
