1 // SPDX-License-Identifier: ISC
2 /*
3  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
4  */
5 #include "mt76.h"
6 
7 static int
8 mt76_reg_set(void *data, u64 val)
9 {
10 	struct mt76_dev *dev = data;
11 
12 	__mt76_wr(dev, dev->debugfs_reg, val);
13 	return 0;
14 }
15 
16 static int
17 mt76_reg_get(void *data, u64 *val)
18 {
19 	struct mt76_dev *dev = data;
20 
21 	*val = __mt76_rr(dev, dev->debugfs_reg);
22 	return 0;
23 }
24 
25 DEFINE_DEBUGFS_ATTRIBUTE(fops_regval, mt76_reg_get, mt76_reg_set,
26 			 "0x%08llx\n");
27 
28 static int
29 mt76_napi_threaded_set(void *data, u64 val)
30 {
31 	struct mt76_dev *dev = data;
32 
33 	if (!mt76_is_mmio(dev))
34 		return -EOPNOTSUPP;
35 
36 	if (dev->napi_dev.threaded != val)
37 		return dev_set_threaded(&dev->napi_dev, val);
38 
39 	return 0;
40 }
41 
42 static int
43 mt76_napi_threaded_get(void *data, u64 *val)
44 {
45 	struct mt76_dev *dev = data;
46 
47 	*val = dev->napi_dev.threaded;
48 	return 0;
49 }
50 
51 DEFINE_DEBUGFS_ATTRIBUTE(fops_napi_threaded, mt76_napi_threaded_get,
52 			 mt76_napi_threaded_set, "%llu\n");
53 
54 int mt76_queues_read(struct seq_file *s, void *data)
55 {
56 	struct mt76_dev *dev = dev_get_drvdata(s->private);
57 	int i;
58 
59 	seq_puts(s, "     queue | hw-queued |      head |      tail |\n");
60 	for (i = 0; i < ARRAY_SIZE(dev->phy.q_tx); i++) {
61 		struct mt76_queue *q = dev->phy.q_tx[i];
62 
63 		if (!q)
64 			continue;
65 
66 		seq_printf(s, " %9d | %9d | %9d | %9d |\n",
67 			   i, q->queued, q->head, q->tail);
68 	}
69 
70 	return 0;
71 }
72 EXPORT_SYMBOL_GPL(mt76_queues_read);
73 
74 static int mt76_rx_queues_read(struct seq_file *s, void *data)
75 {
76 	struct mt76_dev *dev = dev_get_drvdata(s->private);
77 	int i, queued;
78 
79 	seq_puts(s, "     queue | hw-queued |      head |      tail |\n");
80 	mt76_for_each_q_rx(dev, i) {
81 		struct mt76_queue *q = &dev->q_rx[i];
82 
83 		queued = mt76_is_usb(dev) ? q->ndesc - q->queued : q->queued;
84 		seq_printf(s, " %9d | %9d | %9d | %9d |\n",
85 			   i, queued, q->head, q->tail);
86 	}
87 
88 	return 0;
89 }
90 
91 void mt76_seq_puts_array(struct seq_file *file, const char *str,
92 			 s8 *val, int len)
93 {
94 	int i;
95 
96 	seq_printf(file, "%10s:", str);
97 	for (i = 0; i < len; i++)
98 		seq_printf(file, " %2d", val[i]);
99 	seq_puts(file, "\n");
100 }
101 EXPORT_SYMBOL_GPL(mt76_seq_puts_array);
102 
103 static int mt76_read_rate_txpower(struct seq_file *s, void *data)
104 {
105 	struct mt76_dev *dev = dev_get_drvdata(s->private);
106 
107 	mt76_seq_puts_array(s, "CCK", dev->rate_power.cck,
108 			    ARRAY_SIZE(dev->rate_power.cck));
109 	mt76_seq_puts_array(s, "OFDM", dev->rate_power.ofdm,
110 			    ARRAY_SIZE(dev->rate_power.ofdm));
111 	mt76_seq_puts_array(s, "STBC", dev->rate_power.stbc,
112 			    ARRAY_SIZE(dev->rate_power.stbc));
113 	mt76_seq_puts_array(s, "HT", dev->rate_power.ht,
114 			    ARRAY_SIZE(dev->rate_power.ht));
115 	mt76_seq_puts_array(s, "VHT", dev->rate_power.vht,
116 			    ARRAY_SIZE(dev->rate_power.vht));
117 	return 0;
118 }
119 
120 struct dentry *
121 mt76_register_debugfs_fops(struct mt76_phy *phy,
122 			   const struct file_operations *ops)
123 {
124 	const struct file_operations *fops = ops ? ops : &fops_regval;
125 	struct mt76_dev *dev = phy->dev;
126 	struct dentry *dir;
127 
128 	dir = debugfs_create_dir("mt76", phy->hw->wiphy->debugfsdir);
129 	if (!dir)
130 		return NULL;
131 
132 	debugfs_create_u8("led_pin", 0600, dir, &dev->led_pin);
133 	debugfs_create_u32("regidx", 0600, dir, &dev->debugfs_reg);
134 	debugfs_create_file_unsafe("regval", 0600, dir, dev, fops);
135 	debugfs_create_file_unsafe("napi_threaded", 0600, dir, dev,
136 				   &fops_napi_threaded);
137 	debugfs_create_blob("eeprom", 0400, dir, &dev->eeprom);
138 	if (dev->otp.data)
139 		debugfs_create_blob("otp", 0400, dir, &dev->otp);
140 	debugfs_create_devm_seqfile(dev->dev, "rate_txpower", dir,
141 				    mt76_read_rate_txpower);
142 	debugfs_create_devm_seqfile(dev->dev, "rx-queues", dir,
143 				    mt76_rx_queues_read);
144 
145 	return dir;
146 }
147 EXPORT_SYMBOL_GPL(mt76_register_debugfs_fops);
148