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 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         for (i = 0; i < ARRAY_SIZE(dev->phy.q_tx); i++) {
  60                 struct mt76_queue *q = dev->phy.q_tx[i];
  61
  62                 if (!q)
  63                         continue;
  64
  65                 seq_printf(s,
  66                            "%d: queued=%d head=%d tail=%d\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         mt76_for_each_q_rx(dev, i) {
  80                 struct mt76_queue *q = &dev->q_rx[i];
  81
  82                 queued = mt76_is_usb(dev) ? q->ndesc - q->queued : q->queued;
  83                 seq_printf(s, "%d:      queued=%d head=%d tail=%d\n",
  84                            i, queued, q->head, q->tail);
  85         }
  86
  87         return 0;
  88 }
  89
  90 void mt76_seq_puts_array(struct seq_file *file, const char *str,
  91                          s8 *val, int len)
  92 {
  93         int i;
  94
  95         seq_printf(file, "%10s:", str);
  96         for (i = 0; i < len; i++)
  97                 seq_printf(file, " %2d", val[i]);
  98         seq_puts(file, "\n");
  99 }
 100 EXPORT_SYMBOL_GPL(mt76_seq_puts_array);
 101
 102 static int mt76_read_rate_txpower(struct seq_file *s, void *data)
 103 {
 104         struct mt76_dev *dev = dev_get_drvdata(s->private);
 105
 106         mt76_seq_puts_array(s, "CCK", dev->rate_power.cck,
 107                             ARRAY_SIZE(dev->rate_power.cck));
 108         mt76_seq_puts_array(s, "OFDM", dev->rate_power.ofdm,
 109                             ARRAY_SIZE(dev->rate_power.ofdm));
 110         mt76_seq_puts_array(s, "STBC", dev->rate_power.stbc,
 111                             ARRAY_SIZE(dev->rate_power.stbc));
 112         mt76_seq_puts_array(s, "HT", dev->rate_power.ht,
 113                             ARRAY_SIZE(dev->rate_power.ht));
 114         mt76_seq_puts_array(s, "VHT", dev->rate_power.vht,
 115                             ARRAY_SIZE(dev->rate_power.vht));
 116         return 0;
 117 }
 118
 119 struct dentry *mt76_register_debugfs(struct mt76_dev *dev)
 120 {
 121         struct dentry *dir;
 122
 123         dir = debugfs_create_dir("mt76", dev->hw->wiphy->debugfsdir);
 124         if (!dir)
 125                 return NULL;
 126
 127         debugfs_create_u8("led_pin", 0600, dir, &dev->led_pin);
 128         debugfs_create_u32("regidx", 0600, dir, &dev->debugfs_reg);
 129         debugfs_create_file_unsafe("regval", 0600, dir, dev,
 130                                    &fops_regval);
 131         debugfs_create_file_unsafe("napi_threaded", 0600, dir, dev,
 132                                    &fops_napi_threaded);
 133         debugfs_create_blob("eeprom", 0400, dir, &dev->eeprom);
 134         if (dev->otp.data)
 135                 debugfs_create_blob("otp", 0400, dir, &dev->otp);
 136         debugfs_create_devm_seqfile(dev->dev, "rate_txpower", dir,
 137                                     mt76_read_rate_txpower);
 138         debugfs_create_devm_seqfile(dev->dev, "rx-queues", dir,
 139                                     mt76_rx_queues_read);
 140
 141         return dir;
 142 }
 143 EXPORT_SYMBOL_GPL(mt76_register_debugfs);