linux/drivers/net/wireless/mediatek/mt76/mt76x02_debugfs.c
<<
>>
Prefs
   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
   9static int
  10mt76x02_ampdu_stat_read(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
  34static int
  35mt76x02_ampdu_stat_open(struct inode *inode, struct file *f)
  36{
  37        return single_open(f, mt76x02_ampdu_stat_read, inode->i_private);
  38}
  39
  40static int read_txpower(struct seq_file *file, void *data)
  41{
  42        struct mt76x02_dev *dev = dev_get_drvdata(file->private);
  43
  44        seq_printf(file, "Target power: %d\n", dev->target_power);
  45
  46        mt76_seq_puts_array(file, "Delta", dev->target_power_delta,
  47                            ARRAY_SIZE(dev->target_power_delta));
  48        return 0;
  49}
  50
  51static const struct file_operations fops_ampdu_stat = {
  52        .open = mt76x02_ampdu_stat_open,
  53        .read = seq_read,
  54        .llseek = seq_lseek,
  55        .release = single_release,
  56};
  57
  58static int
  59mt76x02_dfs_stat_read(struct seq_file *file, void *data)
  60{
  61        struct mt76x02_dev *dev = file->private;
  62        struct mt76x02_dfs_pattern_detector *dfs_pd = &dev->dfs_pd;
  63        int i;
  64
  65        seq_printf(file, "allocated sequences:\t%d\n",
  66                   dfs_pd->seq_stats.seq_pool_len);
  67        seq_printf(file, "used sequences:\t\t%d\n",
  68                   dfs_pd->seq_stats.seq_len);
  69        seq_puts(file, "\n");
  70
  71        for (i = 0; i < MT_DFS_NUM_ENGINES; i++) {
  72                seq_printf(file, "engine: %d\n", i);
  73                seq_printf(file, "  hw pattern detected:\t%d\n",
  74                           dfs_pd->stats[i].hw_pattern);
  75                seq_printf(file, "  hw pulse discarded:\t%d\n",
  76                           dfs_pd->stats[i].hw_pulse_discarded);
  77                seq_printf(file, "  sw pattern detected:\t%d\n",
  78                           dfs_pd->stats[i].sw_pattern);
  79        }
  80
  81        return 0;
  82}
  83
  84static int
  85mt76x02_dfs_stat_open(struct inode *inode, struct file *f)
  86{
  87        return single_open(f, mt76x02_dfs_stat_read, inode->i_private);
  88}
  89
  90static const struct file_operations fops_dfs_stat = {
  91        .open = mt76x02_dfs_stat_open,
  92        .read = seq_read,
  93        .llseek = seq_lseek,
  94        .release = single_release,
  95};
  96
  97static int read_agc(struct seq_file *file, void *data)
  98{
  99        struct mt76x02_dev *dev = dev_get_drvdata(file->private);
 100
 101        seq_printf(file, "avg_rssi: %d\n", dev->cal.avg_rssi_all);
 102        seq_printf(file, "low_gain: %d\n", dev->cal.low_gain);
 103        seq_printf(file, "false_cca: %d\n", dev->cal.false_cca);
 104        seq_printf(file, "agc_gain_adjust: %d\n", dev->cal.agc_gain_adjust);
 105
 106        return 0;
 107}
 108
 109static int
 110mt76_edcca_set(void *data, u64 val)
 111{
 112        struct mt76x02_dev *dev = data;
 113        enum nl80211_dfs_regions region = dev->mt76.region;
 114
 115        mutex_lock(&dev->mt76.mutex);
 116
 117        dev->ed_monitor_enabled = !!val;
 118        dev->ed_monitor = dev->ed_monitor_enabled &&
 119                          region == NL80211_DFS_ETSI;
 120        mt76x02_edcca_init(dev);
 121
 122        mutex_unlock(&dev->mt76.mutex);
 123
 124        return 0;
 125}
 126
 127static int
 128mt76_edcca_get(void *data, u64 *val)
 129{
 130        struct mt76x02_dev *dev = data;
 131
 132        *val = dev->ed_monitor_enabled;
 133        return 0;
 134}
 135
 136DEFINE_DEBUGFS_ATTRIBUTE(fops_edcca, mt76_edcca_get, mt76_edcca_set,
 137                         "%lld\n");
 138
 139void mt76x02_init_debugfs(struct mt76x02_dev *dev)
 140{
 141        struct dentry *dir;
 142
 143        dir = mt76_register_debugfs(&dev->mt76);
 144        if (!dir)
 145                return;
 146
 147        debugfs_create_devm_seqfile(dev->mt76.dev, "queues", dir,
 148                                    mt76_queues_read);
 149        debugfs_create_u8("temperature", 0400, dir, &dev->cal.temp);
 150        debugfs_create_bool("tpc", 0600, dir, &dev->enable_tpc);
 151
 152        debugfs_create_file("edcca", 0600, dir, dev, &fops_edcca);
 153        debugfs_create_file("ampdu_stat", 0400, dir, dev, &fops_ampdu_stat);
 154        debugfs_create_file("dfs_stats", 0400, dir, dev, &fops_dfs_stat);
 155        debugfs_create_devm_seqfile(dev->mt76.dev, "txpower", dir,
 156                                    read_txpower);
 157
 158        debugfs_create_devm_seqfile(dev->mt76.dev, "agc", dir, read_agc);
 159
 160        debugfs_create_u32("tx_hang_reset", 0400, dir, &dev->tx_hang_reset);
 161}
 162EXPORT_SYMBOL_GPL(mt76x02_init_debugfs);
 163