linux/drivers/net/wireless/mediatek/mt7601u/debugfs.c
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   1/*
   2 * Copyright (C) 2014 Felix Fietkau <nbd@openwrt.org>
   3 * Copyright (C) 2015 Jakub Kicinski <kubakici@wp.pl>
   4 *
   5 * This program is free software; you can redistribute it and/or modify
   6 * it under the terms of the GNU General Public License version 2
   7 * as published by the Free Software Foundation
   8 *
   9 * This program is distributed in the hope that it will be useful,
  10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 * GNU General Public License for more details.
  13 */
  14
  15#include <linux/debugfs.h>
  16
  17#include "mt7601u.h"
  18#include "eeprom.h"
  19
  20static int
  21mt76_reg_set(void *data, u64 val)
  22{
  23        struct mt7601u_dev *dev = data;
  24
  25        mt76_wr(dev, dev->debugfs_reg, val);
  26        return 0;
  27}
  28
  29static int
  30mt76_reg_get(void *data, u64 *val)
  31{
  32        struct mt7601u_dev *dev = data;
  33
  34        *val = mt76_rr(dev, dev->debugfs_reg);
  35        return 0;
  36}
  37
  38DEFINE_SIMPLE_ATTRIBUTE(fops_regval, mt76_reg_get, mt76_reg_set, "0x%08llx\n");
  39
  40static int
  41mt7601u_ampdu_stat_read(struct seq_file *file, void *data)
  42{
  43        struct mt7601u_dev *dev = file->private;
  44        int i, j;
  45
  46#define stat_printf(grp, off, name)                                     \
  47        seq_printf(file, #name ":\t%llu\n", dev->stats.grp[off])
  48
  49        stat_printf(rx_stat, 0, rx_crc_err);
  50        stat_printf(rx_stat, 1, rx_phy_err);
  51        stat_printf(rx_stat, 2, rx_false_cca);
  52        stat_printf(rx_stat, 3, rx_plcp_err);
  53        stat_printf(rx_stat, 4, rx_fifo_overflow);
  54        stat_printf(rx_stat, 5, rx_duplicate);
  55
  56        stat_printf(tx_stat, 0, tx_fail_cnt);
  57        stat_printf(tx_stat, 1, tx_bcn_cnt);
  58        stat_printf(tx_stat, 2, tx_success);
  59        stat_printf(tx_stat, 3, tx_retransmit);
  60        stat_printf(tx_stat, 4, tx_zero_len);
  61        stat_printf(tx_stat, 5, tx_underflow);
  62
  63        stat_printf(aggr_stat, 0, non_aggr_tx);
  64        stat_printf(aggr_stat, 1, aggr_tx);
  65
  66        stat_printf(zero_len_del, 0, tx_zero_len_del);
  67        stat_printf(zero_len_del, 1, rx_zero_len_del);
  68#undef stat_printf
  69
  70        seq_puts(file, "Aggregations stats:\n");
  71        for (i = 0; i < 4; i++) {
  72                for (j = 0; j < 8; j++)
  73                        seq_printf(file, "%08llx ",
  74                                   dev->stats.aggr_n[i * 8 + j]);
  75                seq_putc(file, '\n');
  76        }
  77
  78        seq_printf(file, "recent average AMPDU len: %d\n",
  79                   atomic_read(&dev->avg_ampdu_len));
  80
  81        return 0;
  82}
  83
  84static int
  85mt7601u_ampdu_stat_open(struct inode *inode, struct file *f)
  86{
  87        return single_open(f, mt7601u_ampdu_stat_read, inode->i_private);
  88}
  89
  90static const struct file_operations fops_ampdu_stat = {
  91        .open = mt7601u_ampdu_stat_open,
  92        .read = seq_read,
  93        .llseek = seq_lseek,
  94        .release = single_release,
  95};
  96
  97static int
  98mt7601u_eeprom_param_read(struct seq_file *file, void *data)
  99{
 100        struct mt7601u_dev *dev = file->private;
 101        struct mt7601u_rate_power *rp = &dev->ee->power_rate_table;
 102        struct tssi_data *td = &dev->ee->tssi_data;
 103        int i;
 104
 105        seq_printf(file, "RF freq offset: %hhx\n", dev->ee->rf_freq_off);
 106        seq_printf(file, "RSSI offset: %hhx %hhx\n",
 107                   dev->ee->rssi_offset[0], dev->ee->rssi_offset[1]);
 108        seq_printf(file, "Reference temp: %hhx\n", dev->ee->ref_temp);
 109        seq_printf(file, "LNA gain: %hhx\n", dev->ee->lna_gain);
 110        seq_printf(file, "Reg channels: %hhu-%hhu\n", dev->ee->reg.start,
 111                   dev->ee->reg.start + dev->ee->reg.num - 1);
 112
 113        seq_puts(file, "Per rate power:\n");
 114        for (i = 0; i < 2; i++)
 115                seq_printf(file, "\t raw:%02hhx bw20:%02hhx bw40:%02hhx\n",
 116                           rp->cck[i].raw, rp->cck[i].bw20, rp->cck[i].bw40);
 117        for (i = 0; i < 4; i++)
 118                seq_printf(file, "\t raw:%02hhx bw20:%02hhx bw40:%02hhx\n",
 119                           rp->ofdm[i].raw, rp->ofdm[i].bw20, rp->ofdm[i].bw40);
 120        for (i = 0; i < 4; i++)
 121                seq_printf(file, "\t raw:%02hhx bw20:%02hhx bw40:%02hhx\n",
 122                           rp->ht[i].raw, rp->ht[i].bw20, rp->ht[i].bw40);
 123
 124        seq_puts(file, "Per channel power:\n");
 125        for (i = 0; i < 7; i++)
 126                seq_printf(file, "\t tx_power  ch%u:%02hhx ch%u:%02hhx\n",
 127                           i * 2 + 1, dev->ee->chan_pwr[i * 2],
 128                           i * 2 + 2, dev->ee->chan_pwr[i * 2 + 1]);
 129
 130        if (!dev->ee->tssi_enabled)
 131                return 0;
 132
 133        seq_puts(file, "TSSI:\n");
 134        seq_printf(file, "\t slope:%02hhx\n", td->slope);
 135        seq_printf(file, "\t offset=%02hhx %02hhx %02hhx\n",
 136                   td->offset[0], td->offset[1], td->offset[2]);
 137        seq_printf(file, "\t delta_off:%08x\n", td->tx0_delta_offset);
 138
 139        return 0;
 140}
 141
 142static int
 143mt7601u_eeprom_param_open(struct inode *inode, struct file *f)
 144{
 145        return single_open(f, mt7601u_eeprom_param_read, inode->i_private);
 146}
 147
 148static const struct file_operations fops_eeprom_param = {
 149        .open = mt7601u_eeprom_param_open,
 150        .read = seq_read,
 151        .llseek = seq_lseek,
 152        .release = single_release,
 153};
 154
 155void mt7601u_init_debugfs(struct mt7601u_dev *dev)
 156{
 157        struct dentry *dir;
 158
 159        dir = debugfs_create_dir("mt7601u", dev->hw->wiphy->debugfsdir);
 160        if (!dir)
 161                return;
 162
 163        debugfs_create_u8("temperature", S_IRUSR, dir, &dev->raw_temp);
 164        debugfs_create_u32("temp_mode", S_IRUSR, dir, &dev->temp_mode);
 165
 166        debugfs_create_u32("regidx", S_IRUSR | S_IWUSR, dir, &dev->debugfs_reg);
 167        debugfs_create_file("regval", S_IRUSR | S_IWUSR, dir, dev,
 168                            &fops_regval);
 169        debugfs_create_file("ampdu_stat", S_IRUSR, dir, dev, &fops_ampdu_stat);
 170        debugfs_create_file("eeprom_param", S_IRUSR, dir, dev,
 171                            &fops_eeprom_param);
 172}
 173