debugfs.c (3646B)
1// SPDX-License-Identifier: ISC 2/* 3 * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name> 4 */ 5#include "mt76.h" 6 7static int 8mt76_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 16static int 17mt76_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 25DEFINE_DEBUGFS_ATTRIBUTE(fops_regval, mt76_reg_get, mt76_reg_set, 26 "0x%08llx\n"); 27 28static int 29mt76_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 42static int 43mt76_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 51DEFINE_DEBUGFS_ATTRIBUTE(fops_napi_threaded, mt76_napi_threaded_get, 52 mt76_napi_threaded_set, "%llu\n"); 53 54int 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} 72EXPORT_SYMBOL_GPL(mt76_queues_read); 73 74static 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 91void 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} 101EXPORT_SYMBOL_GPL(mt76_seq_puts_array); 102 103static 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 120struct dentry * 121mt76_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} 147EXPORT_SYMBOL_GPL(mt76_register_debugfs_fops);