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_show(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 DEFINE_SHOW_ATTRIBUTE(mt7601u_ampdu_stat);
77 
78 static int
79 mt7601u_eeprom_param_show(struct seq_file *file, void *data)
80 {
81 	struct mt7601u_dev *dev = file->private;
82 	struct mt7601u_rate_power *rp = &dev->ee->power_rate_table;
83 	struct tssi_data *td = &dev->ee->tssi_data;
84 	int i;
85 
86 	seq_printf(file, "RF freq offset: %hhx\n", dev->ee->rf_freq_off);
87 	seq_printf(file, "RSSI offset: %hhx %hhx\n",
88 		   dev->ee->rssi_offset[0], dev->ee->rssi_offset[1]);
89 	seq_printf(file, "Reference temp: %hhx\n", dev->ee->ref_temp);
90 	seq_printf(file, "LNA gain: %hhx\n", dev->ee->lna_gain);
91 	seq_printf(file, "Reg channels: %hhu-%d\n", dev->ee->reg.start,
92 		   dev->ee->reg.start + dev->ee->reg.num - 1);
93 
94 	seq_puts(file, "Per rate power:\n");
95 	for (i = 0; i < 2; i++)
96 		seq_printf(file, "\t raw:%02hhx bw20:%02hhx bw40:%02hhx\n",
97 			   rp->cck[i].raw, rp->cck[i].bw20, rp->cck[i].bw40);
98 	for (i = 0; i < 4; i++)
99 		seq_printf(file, "\t raw:%02hhx bw20:%02hhx bw40:%02hhx\n",
100 			   rp->ofdm[i].raw, rp->ofdm[i].bw20, rp->ofdm[i].bw40);
101 	for (i = 0; i < 4; i++)
102 		seq_printf(file, "\t raw:%02hhx bw20:%02hhx bw40:%02hhx\n",
103 			   rp->ht[i].raw, rp->ht[i].bw20, rp->ht[i].bw40);
104 
105 	seq_puts(file, "Per channel power:\n");
106 	for (i = 0; i < 7; i++)
107 		seq_printf(file, "\t tx_power  ch%u:%02hhx ch%u:%02hhx\n",
108 			   i * 2 + 1, dev->ee->chan_pwr[i * 2],
109 			   i * 2 + 2, dev->ee->chan_pwr[i * 2 + 1]);
110 
111 	if (!dev->ee->tssi_enabled)
112 		return 0;
113 
114 	seq_puts(file, "TSSI:\n");
115 	seq_printf(file, "\t slope:%02hhx\n", td->slope);
116 	seq_printf(file, "\t offset=%02hhx %02hhx %02hhx\n",
117 		   td->offset[0], td->offset[1], td->offset[2]);
118 	seq_printf(file, "\t delta_off:%08x\n", td->tx0_delta_offset);
119 
120 	return 0;
121 }
122 
123 DEFINE_SHOW_ATTRIBUTE(mt7601u_eeprom_param);
124 
125 void mt7601u_init_debugfs(struct mt7601u_dev *dev)
126 {
127 	struct dentry *dir;
128 
129 	dir = debugfs_create_dir("mt7601u", dev->hw->wiphy->debugfsdir);
130 	if (!dir)
131 		return;
132 
133 	debugfs_create_u8("temperature", 0400, dir, &dev->raw_temp);
134 	debugfs_create_u32("temp_mode", 0400, dir, &dev->temp_mode);
135 
136 	debugfs_create_u32("regidx", 0600, dir, &dev->debugfs_reg);
137 	debugfs_create_file("regval", 0600, dir, dev, &fops_regval);
138 	debugfs_create_file("ampdu_stat", 0400, dir, dev, &mt7601u_ampdu_stat_fops);
139 	debugfs_create_file("eeprom_param", 0400, dir, dev, &mt7601u_eeprom_param_fops);
140 }
141