drivers/net/wireless/mediatek/mt76/debugfs.c

   1 // SPDX-License-Identifier: ISC
   2 /*
   3  * Copyright (C) 2016 Felix Fietkau <[email protected]>
   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 int mt76_queues_read(struct seq_file *s, void *data)
  29 {
  30         struct mt76_dev *dev = dev_get_drvdata(s->private);
  31         int i;
  32
  33         for (i = 0; i < ARRAY_SIZE(dev->phy.q_tx); i++) {
  34                 struct mt76_queue *q = dev->phy.q_tx[i];
  35
  36                 if (!q)
  37                         continue;
  38
  39                 seq_printf(s,
  40                            "%d: queued=%d head=%d tail=%d\n",
  41                            i, q->queued, q->head, q->tail);
  42         }
  43
  44         return 0;
  45 }
  46 EXPORT_SYMBOL_GPL(mt76_queues_read);
  47
  48 static int mt76_rx_queues_read(struct seq_file *s, void *data)
  49 {
  50         struct mt76_dev *dev = dev_get_drvdata(s->private);
  51         int i, queued;
  52
  53         mt76_for_each_q_rx(dev, i) {
  54                 struct mt76_queue *q = &dev->q_rx[i];
  55
  56                 queued = mt76_is_usb(dev) ? q->ndesc - q->queued : q->queued;
  57                 seq_printf(s, "%d:      queued=%d head=%d tail=%d\n",
  58                            i, queued, q->head, q->tail);
  59         }
  60
  61         return 0;
  62 }
  63
  64 void mt76_seq_puts_array(struct seq_file *file, const char *str,
  65                          s8 *val, int len)
  66 {
  67         int i;
  68
  69         seq_printf(file, "%10s:", str);
  70         for (i = 0; i < len; i++)
  71                 seq_printf(file, " %2d", val[i]);
  72         seq_puts(file, "\n");
  73 }
  74 EXPORT_SYMBOL_GPL(mt76_seq_puts_array);
  75
  76 static int mt76_read_rate_txpower(struct seq_file *s, void *data)
  77 {
  78         struct mt76_dev *dev = dev_get_drvdata(s->private);
  79
  80         mt76_seq_puts_array(s, "CCK", dev->rate_power.cck,
  81                             ARRAY_SIZE(dev->rate_power.cck));
  82         mt76_seq_puts_array(s, "OFDM", dev->rate_power.ofdm,
  83                             ARRAY_SIZE(dev->rate_power.ofdm));
  84         mt76_seq_puts_array(s, "STBC", dev->rate_power.stbc,
  85                             ARRAY_SIZE(dev->rate_power.stbc));
  86         mt76_seq_puts_array(s, "HT", dev->rate_power.ht,
  87                             ARRAY_SIZE(dev->rate_power.ht));
  88         mt76_seq_puts_array(s, "VHT", dev->rate_power.vht,
  89                             ARRAY_SIZE(dev->rate_power.vht));
  90         return 0;
  91 }
  92
  93 struct dentry *mt76_register_debugfs(struct mt76_dev *dev)
  94 {
  95         struct dentry *dir;
  96
  97         dir = debugfs_create_dir("mt76", dev->hw->wiphy->debugfsdir);
  98         if (!dir)
  99                 return NULL;
 100
 101         debugfs_create_u8("led_pin", 0600, dir, &dev->led_pin);
 102         debugfs_create_u32("regidx", 0600, dir, &dev->debugfs_reg);
 103         debugfs_create_file_unsafe("regval", 0600, dir, dev,
 104                                    &fops_regval);
 105         debugfs_create_blob("eeprom", 0400, dir, &dev->eeprom);
 106         if (dev->otp.data)
 107                 debugfs_create_blob("otp", 0400, dir, &dev->otp);
 108         debugfs_create_devm_seqfile(dev->dev, "rate_txpower", dir,
 109                                     mt76_read_rate_txpower);
 110         debugfs_create_devm_seqfile(dev->dev, "rx-queues", dir,
 111                                     mt76_rx_queues_read);
 112
 113         return dir;
 114 }
 115 EXPORT_SYMBOL_GPL(mt76_register_debugfs);