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_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
  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
  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
  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
  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
 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
 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);