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

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (C) 2014 Felix Fietkau <nbd@openwrt.org>
   4  * Copyright (C) 2015 Jakub Kicinski <kubakici@wp.pl>
   5  */
   6
   7 #include <linux/debugfs.h>
   8
   9 #include "mt7601u.h"
  10 #include "eeprom.h"
  11
  12 static int
  13 mt76_reg_set(void *data, u64 val)
  14 {
  15         struct mt7601u_dev *dev = data;
  16
  17         mt76_wr(dev, dev->debugfs_reg, val);
  18         return 0;
  19 }
  20
  21 static int
  22 mt76_reg_get(void *data, u64 *val)
  23 {
  24         struct mt7601u_dev *dev = data;
  25
  26         *val = mt76_rr(dev, dev->debugfs_reg);
  27         return 0;
  28 }
  29
  30 DEFINE_DEBUGFS_ATTRIBUTE(fops_regval, mt76_reg_get, mt76_reg_set, "0x%08llx\n");
  31
  32 static int
  33 mt7601u_ampdu_stat_read(struct seq_file *file, void *data)
  34 {
  35         struct mt7601u_dev *dev = file->private;
  36         int i, j;
  37
  38 #define stat_printf(grp, off, name)                                     \
  39         seq_printf(file, #name ":\t%llu\n", dev->stats.grp[off])
  40
  41         stat_printf(rx_stat, 0, rx_crc_err);
  42         stat_printf(rx_stat, 1, rx_phy_err);
  43         stat_printf(rx_stat, 2, rx_false_cca);
  44         stat_printf(rx_stat, 3, rx_plcp_err);
  45         stat_printf(rx_stat, 4, rx_fifo_overflow);
  46         stat_printf(rx_stat, 5, rx_duplicate);
  47
  48         stat_printf(tx_stat, 0, tx_fail_cnt);
  49         stat_printf(tx_stat, 1, tx_bcn_cnt);
  50         stat_printf(tx_stat, 2, tx_success);
  51         stat_printf(tx_stat, 3, tx_retransmit);
  52         stat_printf(tx_stat, 4, tx_zero_len);
  53         stat_printf(tx_stat, 5, tx_underflow);
  54
  55         stat_printf(aggr_stat, 0, non_aggr_tx);
  56         stat_printf(aggr_stat, 1, aggr_tx);
  57
  58         stat_printf(zero_len_del, 0, tx_zero_len_del);
  59         stat_printf(zero_len_del, 1, rx_zero_len_del);
  60 #undef stat_printf
  61
  62         seq_puts(file, "Aggregations stats:\n");
  63         for (i = 0; i < 4; i++) {
  64                 for (j = 0; j < 8; j++)
  65                         seq_printf(file, "%08llx ",
  66                                    dev->stats.aggr_n[i * 8 + j]);
  67                 seq_putc(file, '\n');
  68         }
  69
  70         seq_printf(file, "recent average AMPDU len: %d\n",
  71                    atomic_read(&dev->avg_ampdu_len));
  72
  73         return 0;
  74 }
  75
  76 static int
  77 mt7601u_ampdu_stat_open(struct inode *inode, struct file *f)
  78 {
  79         return single_open(f, mt7601u_ampdu_stat_read, inode->i_private);
  80 }
  81
  82 static const struct file_operations fops_ampdu_stat = {
  83         .open = mt7601u_ampdu_stat_open,
  84         .read = seq_read,
  85         .llseek = seq_lseek,
  86         .release = single_release,
  87 };
  88
  89 static int
  90 mt7601u_eeprom_param_read(struct seq_file *file, void *data)
  91 {
  92         struct mt7601u_dev *dev = file->private;
  93         struct mt7601u_rate_power *rp = &dev->ee->power_rate_table;
  94         struct tssi_data *td = &dev->ee->tssi_data;
  95         int i;
  96
  97         seq_printf(file, "RF freq offset: %hhx\n", dev->ee->rf_freq_off);
  98         seq_printf(file, "RSSI offset: %hhx %hhx\n",
  99                    dev->ee->rssi_offset[0], dev->ee->rssi_offset[1]);
 100         seq_printf(file, "Reference temp: %hhx\n", dev->ee->ref_temp);
 101         seq_printf(file, "LNA gain: %hhx\n", dev->ee->lna_gain);
 102         seq_printf(file, "Reg channels: %hhu-%hhu\n", dev->ee->reg.start,
 103                    dev->ee->reg.start + dev->ee->reg.num - 1);
 104
 105         seq_puts(file, "Per rate power:\n");
 106         for (i = 0; i < 2; i++)
 107                 seq_printf(file, "\t raw:%02hhx bw20:%02hhx bw40:%02hhx\n",
 108                            rp->cck[i].raw, rp->cck[i].bw20, rp->cck[i].bw40);
 109         for (i = 0; i < 4; i++)
 110                 seq_printf(file, "\t raw:%02hhx bw20:%02hhx bw40:%02hhx\n",
 111                            rp->ofdm[i].raw, rp->ofdm[i].bw20, rp->ofdm[i].bw40);
 112         for (i = 0; i < 4; i++)
 113                 seq_printf(file, "\t raw:%02hhx bw20:%02hhx bw40:%02hhx\n",
 114                            rp->ht[i].raw, rp->ht[i].bw20, rp->ht[i].bw40);
 115
 116         seq_puts(file, "Per channel power:\n");
 117         for (i = 0; i < 7; i++)
 118                 seq_printf(file, "\t tx_power  ch%u:%02hhx ch%u:%02hhx\n",
 119                            i * 2 + 1, dev->ee->chan_pwr[i * 2],
 120                            i * 2 + 2, dev->ee->chan_pwr[i * 2 + 1]);
 121
 122         if (!dev->ee->tssi_enabled)
 123                 return 0;
 124
 125         seq_puts(file, "TSSI:\n");
 126         seq_printf(file, "\t slope:%02hhx\n", td->slope);
 127         seq_printf(file, "\t offset=%02hhx %02hhx %02hhx\n",
 128                    td->offset[0], td->offset[1], td->offset[2]);
 129         seq_printf(file, "\t delta_off:%08x\n", td->tx0_delta_offset);
 130
 131         return 0;
 132 }
 133
 134 static int
 135 mt7601u_eeprom_param_open(struct inode *inode, struct file *f)
 136 {
 137         return single_open(f, mt7601u_eeprom_param_read, inode->i_private);
 138 }
 139
 140 static const struct file_operations fops_eeprom_param = {
 141         .open = mt7601u_eeprom_param_open,
 142         .read = seq_read,
 143         .llseek = seq_lseek,
 144         .release = single_release,
 145 };
 146
 147 void mt7601u_init_debugfs(struct mt7601u_dev *dev)
 148 {
 149         struct dentry *dir;
 150
 151         dir = debugfs_create_dir("mt7601u", dev->hw->wiphy->debugfsdir);
 152         if (!dir)
 153                 return;
 154
 155         debugfs_create_u8("temperature", 0400, dir, &dev->raw_temp);
 156         debugfs_create_u32("temp_mode", 0400, dir, &dev->temp_mode);
 157
 158         debugfs_create_u32("regidx", 0600, dir, &dev->debugfs_reg);
 159         debugfs_create_file("regval", 0600, dir, dev, &fops_regval);
 160         debugfs_create_file("ampdu_stat", 0400, dir, dev, &fops_ampdu_stat);
 161         debugfs_create_file("eeprom_param", 0400, dir, dev, &fops_eeprom_param);
 162 }