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 | ",
  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 static int
  35 mt76x02_ampdu_stat_open(struct inode *inode, struct file *f)
  36 {
  37         return single_open(f, mt76x02_ampdu_stat_read, inode->i_private);
  38 }
  39
  40 static int read_txpower(struct seq_file *file, void *data)
  41 {
  42         struct mt76x02_dev *dev = dev_get_drvdata(file->private);
  43
  44         seq_printf(file, "Target power: %d\n", dev->target_power);
  45
  46         mt76_seq_puts_array(file, "Delta", dev->target_power_delta,
  47                             ARRAY_SIZE(dev->target_power_delta));
  48         return 0;
  49 }
  50
  51 static const struct file_operations fops_ampdu_stat = {
  52         .open = mt76x02_ampdu_stat_open,
  53         .read = seq_read,
  54         .llseek = seq_lseek,
  55         .release = single_release,
  56 };
  57
  58 static int
  59 mt76x02_dfs_stat_read(struct seq_file *file, void *data)
  60 {
  61         struct mt76x02_dev *dev = file->private;
  62         struct mt76x02_dfs_pattern_detector *dfs_pd = &dev->dfs_pd;
  63         int i;
  64
  65         seq_printf(file, "allocated sequences:\t%d\n",
  66                    dfs_pd->seq_stats.seq_pool_len);
  67         seq_printf(file, "used sequences:\t\t%d\n",
  68                    dfs_pd->seq_stats.seq_len);
  69         seq_puts(file, "\n");
  70
  71         for (i = 0; i < MT_DFS_NUM_ENGINES; i++) {
  72                 seq_printf(file, "engine: %d\n", i);
  73                 seq_printf(file, "  hw pattern detected:\t%d\n",
  74                            dfs_pd->stats[i].hw_pattern);
  75                 seq_printf(file, "  hw pulse discarded:\t%d\n",
  76                            dfs_pd->stats[i].hw_pulse_discarded);
  77                 seq_printf(file, "  sw pattern detected:\t%d\n",
  78                            dfs_pd->stats[i].sw_pattern);
  79         }
  80
  81         return 0;
  82 }
  83
  84 static int
  85 mt76x02_dfs_stat_open(struct inode *inode, struct file *f)
  86 {
  87         return single_open(f, mt76x02_dfs_stat_read, inode->i_private);
  88 }
  89
  90 static const struct file_operations fops_dfs_stat = {
  91         .open = mt76x02_dfs_stat_open,
  92         .read = seq_read,
  93         .llseek = seq_lseek,
  94         .release = single_release,
  95 };
  96
  97 static int read_agc(struct seq_file *file, void *data)
  98 {
  99         struct mt76x02_dev *dev = dev_get_drvdata(file->private);
 100
 101         seq_printf(file, "avg_rssi: %d\n", dev->cal.avg_rssi_all);
 102         seq_printf(file, "low_gain: %d\n", dev->cal.low_gain);
 103         seq_printf(file, "false_cca: %d\n", dev->cal.false_cca);
 104         seq_printf(file, "agc_gain_adjust: %d\n", dev->cal.agc_gain_adjust);
 105
 106         return 0;
 107 }
 108
 109 static int
 110 mt76_edcca_set(void *data, u64 val)
 111 {
 112         struct mt76x02_dev *dev = data;
 113         enum nl80211_dfs_regions region = dev->mt76.region;
 114
 115         mutex_lock(&dev->mt76.mutex);
 116
 117         dev->ed_monitor_enabled = !!val;
 118         dev->ed_monitor = dev->ed_monitor_enabled &&
 119                           region == NL80211_DFS_ETSI;
 120         mt76x02_edcca_init(dev);
 121
 122         mutex_unlock(&dev->mt76.mutex);
 123
 124         return 0;
 125 }
 126
 127 static int
 128 mt76_edcca_get(void *data, u64 *val)
 129 {
 130         struct mt76x02_dev *dev = data;
 131
 132         *val = dev->ed_monitor_enabled;
 133         return 0;
 134 }
 135
 136 DEFINE_DEBUGFS_ATTRIBUTE(fops_edcca, mt76_edcca_get, mt76_edcca_set,
 137                          "%lld\n");
 138
 139 void mt76x02_init_debugfs(struct mt76x02_dev *dev)
 140 {
 141         struct dentry *dir;
 142
 143         dir = mt76_register_debugfs(&dev->mt76);
 144         if (!dir)
 145                 return;
 146
 147         debugfs_create_devm_seqfile(dev->mt76.dev, "queues", dir,
 148                                     mt76_queues_read);
 149         debugfs_create_u8("temperature", 0400, dir, &dev->cal.temp);
 150         debugfs_create_bool("tpc", 0600, dir, &dev->enable_tpc);
 151
 152         debugfs_create_file("edcca", 0600, dir, dev, &fops_edcca);
 153         debugfs_create_file("ampdu_stat", 0400, dir, dev, &fops_ampdu_stat);
 154         debugfs_create_file("dfs_stats", 0400, dir, dev, &fops_dfs_stat);
 155         debugfs_create_devm_seqfile(dev->mt76.dev, "txpower", dir,
 156                                     read_txpower);
 157
 158         debugfs_create_devm_seqfile(dev->mt76.dev, "agc", dir, read_agc);
 159
 160         debugfs_create_u32("tx_hang_reset", 0400, dir, &dev->tx_hang_reset);
 161 }
 162 EXPORT_SYMBOL_GPL(mt76x02_init_debugfs);