drivers/net/wireless/mediatek/mt76/mt76x02_debugfs.c

   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
  10 mt76x02_ampdu_stat_read(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 | ", dev->aggr_stats[i * 8 + j]);
  23                 seq_puts(file, "\n");
  24                 seq_puts(file, "--------");
  25                 for (j = 0; j < 8; j++)
  26                         seq_puts(file, "-----------");
  27                 seq_puts(file, "\n");
  28         }
  29
  30         return 0;
  31 }
  32
  33 static int
  34 mt76x02_ampdu_stat_open(struct inode *inode, struct file *f)
  35 {
  36         return single_open(f, mt76x02_ampdu_stat_read, inode->i_private);
  37 }
  38
  39 static int read_txpower(struct seq_file *file, void *data)
  40 {
  41         struct mt76x02_dev *dev = dev_get_drvdata(file->private);
  42
  43         seq_printf(file, "Target power: %d\n", dev->target_power);
  44
  45         mt76_seq_puts_array(file, "Delta", dev->target_power_delta,
  46                             ARRAY_SIZE(dev->target_power_delta));
  47         return 0;
  48 }
  49
  50 static const struct file_operations fops_ampdu_stat = {
  51         .open = mt76x02_ampdu_stat_open,
  52         .read = seq_read,
  53         .llseek = seq_lseek,
  54         .release = single_release,
  55 };
  56
  57 static int
  58 mt76x02_dfs_stat_read(struct seq_file *file, void *data)
  59 {
  60         struct mt76x02_dev *dev = file->private;
  61         struct mt76x02_dfs_pattern_detector *dfs_pd = &dev->dfs_pd;
  62         int i;
  63
  64         seq_printf(file, "allocated sequences:\t%d\n",
  65                    dfs_pd->seq_stats.seq_pool_len);
  66         seq_printf(file, "used sequences:\t\t%d\n",
  67                    dfs_pd->seq_stats.seq_len);
  68         seq_puts(file, "\n");
  69
  70         for (i = 0; i < MT_DFS_NUM_ENGINES; i++) {
  71                 seq_printf(file, "engine: %d\n", i);
  72                 seq_printf(file, "  hw pattern detected:\t%d\n",
  73                            dfs_pd->stats[i].hw_pattern);
  74                 seq_printf(file, "  hw pulse discarded:\t%d\n",
  75                            dfs_pd->stats[i].hw_pulse_discarded);
  76                 seq_printf(file, "  sw pattern detected:\t%d\n",
  77                            dfs_pd->stats[i].sw_pattern);
  78         }
  79
  80         return 0;
  81 }
  82
  83 static int
  84 mt76x02_dfs_stat_open(struct inode *inode, struct file *f)
  85 {
  86         return single_open(f, mt76x02_dfs_stat_read, inode->i_private);
  87 }
  88
  89 static const struct file_operations fops_dfs_stat = {
  90         .open = mt76x02_dfs_stat_open,
  91         .read = seq_read,
  92         .llseek = seq_lseek,
  93         .release = single_release,
  94 };
  95
  96 static int read_agc(struct seq_file *file, void *data)
  97 {
  98         struct mt76x02_dev *dev = dev_get_drvdata(file->private);
  99
 100         seq_printf(file, "avg_rssi: %d\n", dev->cal.avg_rssi_all);
 101         seq_printf(file, "low_gain: %d\n", dev->cal.low_gain);
 102         seq_printf(file, "false_cca: %d\n", dev->cal.false_cca);
 103         seq_printf(file, "agc_gain_adjust: %d\n", dev->cal.agc_gain_adjust);
 104
 105         return 0;
 106 }
 107
 108 static int
 109 mt76_edcca_set(void *data, u64 val)
 110 {
 111         struct mt76x02_dev *dev = data;
 112         enum nl80211_dfs_regions region = dev->mt76.region;
 113
 114         mutex_lock(&dev->mt76.mutex);
 115
 116         dev->ed_monitor_enabled = !!val;
 117         dev->ed_monitor = dev->ed_monitor_enabled &&
 118                           region == NL80211_DFS_ETSI;
 119         mt76x02_edcca_init(dev);
 120
 121         mutex_unlock(&dev->mt76.mutex);
 122
 123         return 0;
 124 }
 125
 126 static int
 127 mt76_edcca_get(void *data, u64 *val)
 128 {
 129         struct mt76x02_dev *dev = data;
 130
 131         *val = dev->ed_monitor_enabled;
 132         return 0;
 133 }
 134
 135 DEFINE_DEBUGFS_ATTRIBUTE(fops_edcca, mt76_edcca_get, mt76_edcca_set,
 136                          "%lld\n");
 137
 138 void mt76x02_init_debugfs(struct mt76x02_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("edcca", 0600, dir, dev, &fops_edcca);
 150         debugfs_create_file("ampdu_stat", 0400, dir, dev, &fops_ampdu_stat);
 151         debugfs_create_file("dfs_stats", 0400, dir, dev, &fops_dfs_stat);
 152         debugfs_create_devm_seqfile(dev->mt76.dev, "txpower", dir,
 153                                     read_txpower);
 154
 155         debugfs_create_devm_seqfile(dev->mt76.dev, "agc", dir, read_agc);
 156
 157         debugfs_create_u32("tx_hang_reset", 0400, dir, &dev->tx_hang_reset);
 158 }
 159 EXPORT_SYMBOL_GPL(mt76x02_init_debugfs);