drivers/net/wireless/mediatek/mt76/mt76x2_debugfs.c

   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
  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
  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 int read_txpower(struct seq_file *file, void *data)
  51 {
  52         struct mt76x2_dev *dev = dev_get_drvdata(file->private);
  53
  54         seq_printf(file, "Target power: %d\n", dev->target_power);
  55
  56         mt76_seq_puts_array(file, "Delta", dev->target_power_delta,
  57                             ARRAY_SIZE(dev->target_power_delta));
  58         mt76_seq_puts_array(file, "CCK", dev->rate_power.cck,
  59                             ARRAY_SIZE(dev->rate_power.cck));
  60         mt76_seq_puts_array(file, "OFDM", dev->rate_power.ofdm,
  61                             ARRAY_SIZE(dev->rate_power.ofdm));
  62         mt76_seq_puts_array(file, "STBC", dev->rate_power.stbc,
  63                             ARRAY_SIZE(dev->rate_power.stbc));
  64         mt76_seq_puts_array(file, "HT", dev->rate_power.ht,
  65                             ARRAY_SIZE(dev->rate_power.ht));
  66         mt76_seq_puts_array(file, "VHT", dev->rate_power.vht,
  67                             ARRAY_SIZE(dev->rate_power.vht));
  68         return 0;
  69 }
  70
  71 static const struct file_operations fops_ampdu_stat = {
  72         .open = mt76x2_ampdu_stat_open,
  73         .read = seq_read,
  74         .llseek = seq_lseek,
  75         .release = single_release,
  76 };
  77
  78 static int
  79 mt76x2_dfs_stat_read(struct seq_file *file, void *data)
  80 {
  81         int i;
  82         struct mt76x2_dev *dev = file->private;
  83         struct mt76x2_dfs_pattern_detector *dfs_pd = &dev->dfs_pd;
  84
  85         seq_printf(file, "allocated sequences:\t%d\n",
  86                    dfs_pd->seq_stats.seq_pool_len);
  87         seq_printf(file, "used sequences:\t\t%d\n",
  88                    dfs_pd->seq_stats.seq_len);
  89         seq_puts(file, "\n");
  90
  91         for (i = 0; i < MT_DFS_NUM_ENGINES; i++) {
  92                 seq_printf(file, "engine: %d\n", i);
  93                 seq_printf(file, "  hw pattern detected:\t%d\n",
  94                            dfs_pd->stats[i].hw_pattern);
  95                 seq_printf(file, "  hw pulse discarded:\t%d\n",
  96                            dfs_pd->stats[i].hw_pulse_discarded);
  97                 seq_printf(file, "  sw pattern detected:\t%d\n",
  98                            dfs_pd->stats[i].sw_pattern);
  99         }
 100
 101         return 0;
 102 }
 103
 104 static int
 105 mt76x2_dfs_stat_open(struct inode *inode, struct file *f)
 106 {
 107         return single_open(f, mt76x2_dfs_stat_read, inode->i_private);
 108 }
 109
 110 static const struct file_operations fops_dfs_stat = {
 111         .open = mt76x2_dfs_stat_open,
 112         .read = seq_read,
 113         .llseek = seq_lseek,
 114         .release = single_release,
 115 };
 116
 117 static int read_agc(struct seq_file *file, void *data)
 118 {
 119         struct mt76x2_dev *dev = dev_get_drvdata(file->private);
 120
 121         seq_printf(file, "avg_rssi: %d\n", dev->cal.avg_rssi_all);
 122         seq_printf(file, "low_gain: %d\n", dev->cal.low_gain);
 123         seq_printf(file, "false_cca: %d\n", dev->cal.false_cca);
 124         seq_printf(file, "agc_gain_adjust: %d\n", dev->cal.agc_gain_adjust);
 125
 126         return 0;
 127 }
 128
 129 void mt76x2_init_debugfs(struct mt76x2_dev *dev)
 130 {
 131         struct dentry *dir;
 132
 133         dir = mt76_register_debugfs(&dev->mt76);
 134         if (!dir)
 135                 return;
 136
 137         debugfs_create_u8("temperature", 0400, dir, &dev->cal.temp);
 138         debugfs_create_bool("tpc", 0600, dir, &dev->enable_tpc);
 139
 140         debugfs_create_file("ampdu_stat", 0400, dir, dev, &fops_ampdu_stat);
 141         debugfs_create_file("dfs_stats", 0400, dir, dev, &fops_dfs_stat);
 142         debugfs_create_devm_seqfile(dev->mt76.dev, "txpower", dir,
 143                                     read_txpower);
 144
 145         debugfs_create_devm_seqfile(dev->mt76.dev, "agc", dir, read_agc);
 146 }
 147 EXPORT_SYMBOL_GPL(mt76x2_init_debugfs);