LXR linux/drivers/net/wireless/mediatek/mt76/mt76x2

   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
  20static int
  21mt76x2_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
  44static int
  45mt76x2_ampdu_stat_open(struct inode *inode, struct file *f)
  46{
  47        return single_open(f, mt76x2_ampdu_stat_read, inode->i_private);
  48}
  49
  50static void
  51seq_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
  61static 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
  80static 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
  87static int
  88mt76x2_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
 113static int
 114mt76x2_dfs_stat_open(struct inode *inode, struct file *f)
 115{
 116        return single_open(f, mt76x2_dfs_stat_read, inode->i_private);
 117}
 118
 119static 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
 126static 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
 138void 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}
 156EXPORT_SYMBOL_GPL(mt76x2_init_debugfs);
 157