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