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 void
  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
  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
  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
 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
 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
 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);