LXR linux/drivers/net/wireless/mediatek/mt76/mt76x02

   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
  20static int
  21mt76x02_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
  44static int
  45mt76x02_ampdu_stat_open(struct inode *inode, struct file *f)
  46{
  47        return single_open(f, mt76x02_ampdu_stat_read, inode->i_private);
  48}
  49
  50static 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
  61static 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
  68static int
  69mt76x02_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
  94static int
  95mt76x02_dfs_stat_open(struct inode *inode, struct file *f)
  96{
  97        return single_open(f, mt76x02_dfs_stat_read, inode->i_private);
  98}
  99
 100static 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
 107static 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
 119static int
 120mt76_edcca_set(void *data, u64 val)
 121{
 122        struct mt76x02_dev *dev = data;
 123        enum nl80211_dfs_regions region = dev->mt76.region;
 124
 125        mutex_lock(&dev->mt76.mutex);
 126
 127        dev->ed_monitor_enabled = !!val;
 128        dev->ed_monitor = dev->ed_monitor_enabled &&
 129                          region == NL80211_DFS_ETSI;
 130        mt76x02_edcca_init(dev);
 131
 132        mutex_unlock(&dev->mt76.mutex);
 133
 134        return 0;
 135}
 136
 137static int
 138mt76_edcca_get(void *data, u64 *val)
 139{
 140        struct mt76x02_dev *dev = data;
 141
 142        *val = dev->ed_monitor_enabled;
 143        return 0;
 144}
 145
 146DEFINE_DEBUGFS_ATTRIBUTE(fops_edcca, mt76_edcca_get, mt76_edcca_set,
 147                         "%lld\n");
 148
 149void mt76x02_init_debugfs(struct mt76x02_dev *dev)
 150{
 151        struct dentry *dir;
 152
 153        dir = mt76_register_debugfs(&dev->mt76);
 154        if (!dir)
 155                return;
 156
 157        debugfs_create_u8("temperature", 0400, dir, &dev->cal.temp);
 158        debugfs_create_bool("tpc", 0600, dir, &dev->enable_tpc);
 159
 160        debugfs_create_file("edcca", 0600, dir, dev, &fops_edcca);
 161        debugfs_create_file("ampdu_stat", 0400, dir, dev, &fops_ampdu_stat);
 162        debugfs_create_file("dfs_stats", 0400, dir, dev, &fops_dfs_stat);
 163        debugfs_create_devm_seqfile(dev->mt76.dev, "txpower", dir,
 164                                    read_txpower);
 165
 166        debugfs_create_devm_seqfile(dev->mt76.dev, "agc", dir, read_agc);
 167
 168        debugfs_create_u32("tx_hang_reset", 0400, dir, &dev->tx_hang_reset);
 169}
 170EXPORT_SYMBOL_GPL(mt76x02_init_debugfs);
 171