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}