drivers/net/wireless/mediatek/mt76/mt76x02_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 "mt76x02.h"
  19
  20 static int
  21 mt76x02_ampdu_stat_read(struct seq_file *file, void *data)
  22 {
  23         struct mt76x02_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 mt76x02_ampdu_stat_open(struct inode *inode, struct file *f)
  46 {
  47         return single_open(f, mt76x02_ampdu_stat_read, inode->i_private);
  48 }
  49
  50 static int read_txpower(struct seq_file *file, void *data)
  51 {
  52         struct mt76x02_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         return 0;
  59 }
  60
  61 static const struct file_operations fops_ampdu_stat = {
  62         .open = mt76x02_ampdu_stat_open,
  63         .read = seq_read,
  64         .llseek = seq_lseek,
  65         .release = single_release,
  66 };
  67
  68 static int
  69 mt76x02_dfs_stat_read(struct seq_file *file, void *data)
  70 {
  71         struct mt76x02_dev *dev = file->private;
  72         struct mt76x02_dfs_pattern_detector *dfs_pd = &dev->dfs_pd;
  73         int i;
  74
  75         seq_printf(file, "allocated sequences:\t%d\n",
  76                    dfs_pd->seq_stats.seq_pool_len);
  77         seq_printf(file, "used sequences:\t\t%d\n",
  78                    dfs_pd->seq_stats.seq_len);
  79         seq_puts(file, "\n");
  80
  81         for (i = 0; i < MT_DFS_NUM_ENGINES; i++) {
  82                 seq_printf(file, "engine: %d\n", i);
  83                 seq_printf(file, "  hw pattern detected:\t%d\n",
  84                            dfs_pd->stats[i].hw_pattern);
  85                 seq_printf(file, "  hw pulse discarded:\t%d\n",
  86                            dfs_pd->stats[i].hw_pulse_discarded);
  87                 seq_printf(file, "  sw pattern detected:\t%d\n",
  88                            dfs_pd->stats[i].sw_pattern);
  89         }
  90
  91         return 0;
  92 }
  93
  94 static int
  95 mt76x02_dfs_stat_open(struct inode *inode, struct file *f)
  96 {
  97         return single_open(f, mt76x02_dfs_stat_read, inode->i_private);
  98 }
  99
 100 static const struct file_operations fops_dfs_stat = {
 101         .open = mt76x02_dfs_stat_open,
 102         .read = seq_read,
 103         .llseek = seq_lseek,
 104         .release = single_release,
 105 };
 106
 107 static int read_agc(struct seq_file *file, void *data)
 108 {
 109         struct mt76x02_dev *dev = dev_get_drvdata(file->private);
 110
 111         seq_printf(file, "avg_rssi: %d\n", dev->cal.avg_rssi_all);
 112         seq_printf(file, "low_gain: %d\n", dev->cal.low_gain);
 113         seq_printf(file, "false_cca: %d\n", dev->cal.false_cca);
 114         seq_printf(file, "agc_gain_adjust: %d\n", dev->cal.agc_gain_adjust);
 115
 116         return 0;
 117 }
 118
 119 static int
 120 mt76_edcca_set(void *data, u64 val)
 121 {
 122         struct mt76x02_dev *dev = data;
 123         enum nl80211_dfs_regions region = dev->dfs_pd.region;
 124
 125         dev->ed_monitor_enabled = !!val;
 126         dev->ed_monitor = dev->ed_monitor_enabled &&
 127                           region == NL80211_DFS_ETSI;
 128         mt76x02_edcca_init(dev, true);
 129
 130         return 0;
 131 }
 132
 133 static int
 134 mt76_edcca_get(void *data, u64 *val)
 135 {
 136         struct mt76x02_dev *dev = data;
 137
 138         *val = dev->ed_monitor_enabled;
 139         return 0;
 140 }
 141
 142 DEFINE_DEBUGFS_ATTRIBUTE(fops_edcca, mt76_edcca_get, mt76_edcca_set,
 143                          "%lld\n");
 144
 145 void mt76x02_init_debugfs(struct mt76x02_dev *dev)
 146 {
 147         struct dentry *dir;
 148
 149         dir = mt76_register_debugfs(&dev->mt76);
 150         if (!dir)
 151                 return;
 152
 153         debugfs_create_u8("temperature", 0400, dir, &dev->cal.temp);
 154         debugfs_create_bool("tpc", 0600, dir, &dev->enable_tpc);
 155
 156         debugfs_create_file("edcca", 0400, dir, dev, &fops_edcca);
 157         debugfs_create_file("ampdu_stat", 0400, dir, dev, &fops_ampdu_stat);
 158         debugfs_create_file("dfs_stats", 0400, dir, dev, &fops_dfs_stat);
 159         debugfs_create_devm_seqfile(dev->mt76.dev, "txpower", dir,
 160                                     read_txpower);
 161
 162         debugfs_create_devm_seqfile(dev->mt76.dev, "agc", dir, read_agc);
 163
 164         debugfs_create_u32("tx_hang_reset", 0400, dir, &dev->tx_hang_reset);
 165 }
 166 EXPORT_SYMBOL_GPL(mt76x02_init_debugfs);