drivers/net/wireless/mediatek/mt7601u/debugfs.c

   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
  20 static int
  21 mt76_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
  29 static int
  30 mt76_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
  38 DEFINE_SIMPLE_ATTRIBUTE(fops_regval, mt76_reg_get, mt76_reg_set, "0x%08llx\n");
  39
  40 static int
  41 mt7601u_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
  84 static int
  85 mt7601u_ampdu_stat_open(struct inode *inode, struct file *f)
  86 {
  87         return single_open(f, mt7601u_ampdu_stat_read, inode->i_private);
  88 }
  89
  90 static 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
  97 static int
  98 mt7601u_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
 142 static int
 143 mt7601u_eeprom_param_open(struct inode *inode, struct file *f)
 144 {
 145         return single_open(f, mt7601u_eeprom_param_read, inode->i_private);
 146 }
 147
 148 static 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
 155 void 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", 0400, dir, &dev->raw_temp);
 164         debugfs_create_u32("temp_mode", 0400, dir, &dev->temp_mode);
 165
 166         debugfs_create_u32("regidx", 0600, dir, &dev->debugfs_reg);
 167         debugfs_create_file("regval", 0600, dir, dev, &fops_regval);
 168         debugfs_create_file("ampdu_stat", 0400, dir, dev, &fops_ampdu_stat);
 169         debugfs_create_file("eeprom_param", 0400, dir, dev, &fops_eeprom_param);
 170 }