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kernel/linux-rt-4.4.41/drivers/net/wireless/mediatek/mt7601u/debugfs.c 4.92 KB
5113f6f70   김현기   kernel add
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  /*
   * Copyright (C) 2014 Felix Fietkau <nbd@openwrt.org>
   * Copyright (C) 2015 Jakub Kicinski <kubakici@wp.pl>
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License version 2
   * as published by the Free Software Foundation
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   */
  
  #include <linux/debugfs.h>
  
  #include "mt7601u.h"
  #include "eeprom.h"
  
  static int
  mt76_reg_set(void *data, u64 val)
  {
  	struct mt7601u_dev *dev = data;
  
  	mt76_wr(dev, dev->debugfs_reg, val);
  	return 0;
  }
  
  static int
  mt76_reg_get(void *data, u64 *val)
  {
  	struct mt7601u_dev *dev = data;
  
  	*val = mt76_rr(dev, dev->debugfs_reg);
  	return 0;
  }
  
  DEFINE_SIMPLE_ATTRIBUTE(fops_regval, mt76_reg_get, mt76_reg_set, "0x%08llx
  ");
  
  static int
  mt7601u_ampdu_stat_read(struct seq_file *file, void *data)
  {
  	struct mt7601u_dev *dev = file->private;
  	int i, j;
  
  #define stat_printf(grp, off, name)					\
  	seq_printf(file, #name ":\t%llu
  ", dev->stats.grp[off])
  
  	stat_printf(rx_stat, 0, rx_crc_err);
  	stat_printf(rx_stat, 1, rx_phy_err);
  	stat_printf(rx_stat, 2, rx_false_cca);
  	stat_printf(rx_stat, 3, rx_plcp_err);
  	stat_printf(rx_stat, 4, rx_fifo_overflow);
  	stat_printf(rx_stat, 5, rx_duplicate);
  
  	stat_printf(tx_stat, 0, tx_fail_cnt);
  	stat_printf(tx_stat, 1, tx_bcn_cnt);
  	stat_printf(tx_stat, 2, tx_success);
  	stat_printf(tx_stat, 3, tx_retransmit);
  	stat_printf(tx_stat, 4, tx_zero_len);
  	stat_printf(tx_stat, 5, tx_underflow);
  
  	stat_printf(aggr_stat, 0, non_aggr_tx);
  	stat_printf(aggr_stat, 1, aggr_tx);
  
  	stat_printf(zero_len_del, 0, tx_zero_len_del);
  	stat_printf(zero_len_del, 1, rx_zero_len_del);
  #undef stat_printf
  
  	seq_puts(file, "Aggregations stats:
  ");
  	for (i = 0; i < 4; i++) {
  		for (j = 0; j < 8; j++)
  			seq_printf(file, "%08llx ",
  				   dev->stats.aggr_n[i * 8 + j]);
  		seq_putc(file, '
  ');
  	}
  
  	seq_printf(file, "recent average AMPDU len: %d
  ",
  		   atomic_read(&dev->avg_ampdu_len));
  
  	return 0;
  }
  
  static int
  mt7601u_ampdu_stat_open(struct inode *inode, struct file *f)
  {
  	return single_open(f, mt7601u_ampdu_stat_read, inode->i_private);
  }
  
  static const struct file_operations fops_ampdu_stat = {
  	.open = mt7601u_ampdu_stat_open,
  	.read = seq_read,
  	.llseek = seq_lseek,
  	.release = single_release,
  };
  
  static int
  mt7601u_eeprom_param_read(struct seq_file *file, void *data)
  {
  	struct mt7601u_dev *dev = file->private;
  	struct mt7601u_rate_power *rp = &dev->ee->power_rate_table;
  	struct tssi_data *td = &dev->ee->tssi_data;
  	int i;
  
  	seq_printf(file, "RF freq offset: %hhx
  ", dev->ee->rf_freq_off);
  	seq_printf(file, "RSSI offset: %hhx %hhx
  ",
  		   dev->ee->rssi_offset[0], dev->ee->rssi_offset[1]);
  	seq_printf(file, "Reference temp: %hhx
  ", dev->ee->ref_temp);
  	seq_printf(file, "LNA gain: %hhx
  ", dev->ee->lna_gain);
  	seq_printf(file, "Reg channels: %hhu-%hhu
  ", dev->ee->reg.start,
  		   dev->ee->reg.start + dev->ee->reg.num - 1);
  
  	seq_puts(file, "Per rate power:
  ");
  	for (i = 0; i < 2; i++)
  		seq_printf(file, "\t raw:%02hhx bw20:%02hhx bw40:%02hhx
  ",
  			   rp->cck[i].raw, rp->cck[i].bw20, rp->cck[i].bw40);
  	for (i = 0; i < 4; i++)
  		seq_printf(file, "\t raw:%02hhx bw20:%02hhx bw40:%02hhx
  ",
  			   rp->ofdm[i].raw, rp->ofdm[i].bw20, rp->ofdm[i].bw40);
  	for (i = 0; i < 4; i++)
  		seq_printf(file, "\t raw:%02hhx bw20:%02hhx bw40:%02hhx
  ",
  			   rp->ht[i].raw, rp->ht[i].bw20, rp->ht[i].bw40);
  
  	seq_puts(file, "Per channel power:
  ");
  	for (i = 0; i < 7; i++)
  		seq_printf(file, "\t tx_power  ch%u:%02hhx ch%u:%02hhx
  ",
  			   i * 2 + 1, dev->ee->chan_pwr[i * 2],
  			   i * 2 + 2, dev->ee->chan_pwr[i * 2 + 1]);
  
  	if (!dev->ee->tssi_enabled)
  		return 0;
  
  	seq_puts(file, "TSSI:
  ");
  	seq_printf(file, "\t slope:%02hhx
  ", td->slope);
  	seq_printf(file, "\t offset=%02hhx %02hhx %02hhx
  ",
  		   td->offset[0], td->offset[1], td->offset[2]);
  	seq_printf(file, "\t delta_off:%08x
  ", td->tx0_delta_offset);
  
  	return 0;
  }
  
  static int
  mt7601u_eeprom_param_open(struct inode *inode, struct file *f)
  {
  	return single_open(f, mt7601u_eeprom_param_read, inode->i_private);
  }
  
  static const struct file_operations fops_eeprom_param = {
  	.open = mt7601u_eeprom_param_open,
  	.read = seq_read,
  	.llseek = seq_lseek,
  	.release = single_release,
  };
  
  void mt7601u_init_debugfs(struct mt7601u_dev *dev)
  {
  	struct dentry *dir;
  
  	dir = debugfs_create_dir("mt7601u", dev->hw->wiphy->debugfsdir);
  	if (!dir)
  		return;
  
  	debugfs_create_u8("temperature", S_IRUSR, dir, &dev->raw_temp);
  	debugfs_create_u32("temp_mode", S_IRUSR, dir, &dev->temp_mode);
  
  	debugfs_create_u32("regidx", S_IRUSR | S_IWUSR, dir, &dev->debugfs_reg);
  	debugfs_create_file("regval", S_IRUSR | S_IWUSR, dir, dev,
  			    &fops_regval);
  	debugfs_create_file("ampdu_stat", S_IRUSR, dir, dev, &fops_ampdu_stat);
  	debugfs_create_file("eeprom_param", S_IRUSR, dir, dev,
  			    &fops_eeprom_param);
  }