linux/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c
Felix Fietkau a96fed2825 wifi: mt76: relicense to BSD-3-Clause-Clear
MediaTek has asked to switch from the ISC license to BSD-3-Clause-Clear,
in order to improve clarity and the legal integrity of the code.

The BSD-3-Clause license includes the "no endorsement" clause, which is
important for protecting the reputation of the original authors and
contributors by preventing unauthorized use of their names for endorsement
purposes.

This clause is absent in the BSD-2-Clause license, which is more permissive
but lacks this specific protection.

This change also cleans up the license of some Kconfig/Makefile files,
which were accidentally marked as GPL.

The GPL 2.0 remains in use on mt76x0, as well as two source files in mt7615
for which the license situation still needs to be clarified.

Link: https://patch.msgid.link/20251008104250.46292-2-nbd@nbd.name
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-11-24 14:37:54 +01:00

297 lines
7.2 KiB
C

// SPDX-License-Identifier: BSD-3-Clause-Clear
/* Copyright (C) 2020 MediaTek Inc. */
#include "mt7921.h"
static int
mt7921_reg_set(void *data, u64 val)
{
struct mt792x_dev *dev = data;
mt792x_mutex_acquire(dev);
mt76_wr(dev, dev->mt76.debugfs_reg, val);
mt792x_mutex_release(dev);
return 0;
}
static int
mt7921_reg_get(void *data, u64 *val)
{
struct mt792x_dev *dev = data;
mt792x_mutex_acquire(dev);
*val = mt76_rr(dev, dev->mt76.debugfs_reg);
mt792x_mutex_release(dev);
return 0;
}
DEFINE_DEBUGFS_ATTRIBUTE(fops_regval, mt7921_reg_get, mt7921_reg_set,
"0x%08llx\n");
static int
mt7921_fw_debug_set(void *data, u64 val)
{
struct mt792x_dev *dev = data;
mt792x_mutex_acquire(dev);
dev->fw_debug = (u8)val;
mt7921_mcu_fw_log_2_host(dev, dev->fw_debug);
mt792x_mutex_release(dev);
return 0;
}
static int
mt7921_fw_debug_get(void *data, u64 *val)
{
struct mt792x_dev *dev = data;
*val = dev->fw_debug;
return 0;
}
DEFINE_DEBUGFS_ATTRIBUTE(fops_fw_debug, mt7921_fw_debug_get,
mt7921_fw_debug_set, "%lld\n");
DEFINE_SHOW_ATTRIBUTE(mt792x_tx_stats);
static void
mt7921_seq_puts_array(struct seq_file *file, const char *str,
s8 *val, int len)
{
int i;
seq_printf(file, "%-16s:", str);
for (i = 0; i < len; i++)
if (val[i] == 127)
seq_printf(file, " %6s", "N.A");
else
seq_printf(file, " %6d", val[i]);
seq_puts(file, "\n");
}
#define mt7921_print_txpwr_entry(prefix, rate) \
({ \
mt7921_seq_puts_array(s, #prefix " (user)", \
txpwr.data[TXPWR_USER].rate, \
ARRAY_SIZE(txpwr.data[TXPWR_USER].rate)); \
mt7921_seq_puts_array(s, #prefix " (eeprom)", \
txpwr.data[TXPWR_EEPROM].rate, \
ARRAY_SIZE(txpwr.data[TXPWR_EEPROM].rate)); \
mt7921_seq_puts_array(s, #prefix " (tmac)", \
txpwr.data[TXPWR_MAC].rate, \
ARRAY_SIZE(txpwr.data[TXPWR_MAC].rate)); \
})
static int
mt7921_txpwr(struct seq_file *s, void *data)
{
struct mt792x_dev *dev = dev_get_drvdata(s->private);
struct mt7921_txpwr txpwr;
int ret;
mt792x_mutex_acquire(dev);
ret = mt7921_get_txpwr_info(dev, &txpwr);
mt792x_mutex_release(dev);
if (ret)
return ret;
seq_printf(s, "Tx power table (channel %d)\n", txpwr.ch);
seq_printf(s, "%-16s %6s %6s %6s %6s\n",
" ", "1m", "2m", "5m", "11m");
mt7921_print_txpwr_entry(CCK, cck);
seq_printf(s, "%-16s %6s %6s %6s %6s %6s %6s %6s %6s\n",
" ", "6m", "9m", "12m", "18m", "24m", "36m",
"48m", "54m");
mt7921_print_txpwr_entry(OFDM, ofdm);
seq_printf(s, "%-16s %6s %6s %6s %6s %6s %6s %6s %6s\n",
" ", "mcs0", "mcs1", "mcs2", "mcs3", "mcs4", "mcs5",
"mcs6", "mcs7");
mt7921_print_txpwr_entry(HT20, ht20);
seq_printf(s, "%-16s %6s %6s %6s %6s %6s %6s %6s %6s %6s\n",
" ", "mcs0", "mcs1", "mcs2", "mcs3", "mcs4", "mcs5",
"mcs6", "mcs7", "mcs32");
mt7921_print_txpwr_entry(HT40, ht40);
seq_printf(s, "%-16s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s\n",
" ", "mcs0", "mcs1", "mcs2", "mcs3", "mcs4", "mcs5",
"mcs6", "mcs7", "mcs8", "mcs9", "mcs10", "mcs11");
mt7921_print_txpwr_entry(VHT20, vht20);
mt7921_print_txpwr_entry(VHT40, vht40);
mt7921_print_txpwr_entry(VHT80, vht80);
mt7921_print_txpwr_entry(VHT160, vht160);
mt7921_print_txpwr_entry(HE26, he26);
mt7921_print_txpwr_entry(HE52, he52);
mt7921_print_txpwr_entry(HE106, he106);
mt7921_print_txpwr_entry(HE242, he242);
mt7921_print_txpwr_entry(HE484, he484);
mt7921_print_txpwr_entry(HE996, he996);
mt7921_print_txpwr_entry(HE996x2, he996x2);
return 0;
}
static int
mt7921_pm_set(void *data, u64 val)
{
struct mt792x_dev *dev = data;
struct mt76_connac_pm *pm = &dev->pm;
if (mt76_is_usb(&dev->mt76))
return -EOPNOTSUPP;
mutex_lock(&dev->mt76.mutex);
if (val == pm->enable_user)
goto out;
if (!pm->enable_user) {
pm->stats.last_wake_event = jiffies;
pm->stats.last_doze_event = jiffies;
}
/* make sure the chip is awake here and ps_work is scheduled
* just at end of the this routine.
*/
pm->enable = false;
mt76_connac_pm_wake(&dev->mphy, pm);
pm->enable_user = val;
mt7921_set_runtime_pm(dev);
mt76_connac_power_save_sched(&dev->mphy, pm);
out:
mutex_unlock(&dev->mt76.mutex);
return 0;
}
static int
mt7921_pm_get(void *data, u64 *val)
{
struct mt792x_dev *dev = data;
*val = dev->pm.enable_user;
return 0;
}
DEFINE_DEBUGFS_ATTRIBUTE(fops_pm, mt7921_pm_get, mt7921_pm_set, "%lld\n");
static int
mt7921_deep_sleep_set(void *data, u64 val)
{
struct mt792x_dev *dev = data;
struct mt76_connac_pm *pm = &dev->pm;
bool monitor = !!(dev->mphy.hw->conf.flags & IEEE80211_CONF_MONITOR);
bool enable = !!val;
if (mt76_is_usb(&dev->mt76))
return -EOPNOTSUPP;
mt792x_mutex_acquire(dev);
if (pm->ds_enable_user == enable)
goto out;
pm->ds_enable_user = enable;
pm->ds_enable = enable && !monitor;
mt76_connac_mcu_set_deep_sleep(&dev->mt76, pm->ds_enable);
out:
mt792x_mutex_release(dev);
return 0;
}
static int
mt7921_deep_sleep_get(void *data, u64 *val)
{
struct mt792x_dev *dev = data;
*val = dev->pm.ds_enable_user;
return 0;
}
DEFINE_DEBUGFS_ATTRIBUTE(fops_ds, mt7921_deep_sleep_get,
mt7921_deep_sleep_set, "%lld\n");
DEFINE_DEBUGFS_ATTRIBUTE(fops_pm_idle_timeout, mt792x_pm_idle_timeout_get,
mt792x_pm_idle_timeout_set, "%lld\n");
static int mt7921_chip_reset(void *data, u64 val)
{
struct mt792x_dev *dev = data;
int ret = 0;
switch (val) {
case 1:
/* Reset wifisys directly. */
mt792x_reset(&dev->mt76);
break;
default:
/* Collect the core dump before reset wifisys. */
mt792x_mutex_acquire(dev);
ret = mt76_connac_mcu_chip_config(&dev->mt76);
mt792x_mutex_release(dev);
break;
}
return ret;
}
DEFINE_DEBUGFS_ATTRIBUTE(fops_reset, NULL, mt7921_chip_reset, "%lld\n");
static int
mt7921s_sched_quota_read(struct seq_file *s, void *data)
{
struct mt792x_dev *dev = dev_get_drvdata(s->private);
struct mt76_sdio *sdio = &dev->mt76.sdio;
seq_printf(s, "pse_data_quota\t%d\n", sdio->sched.pse_data_quota);
seq_printf(s, "ple_data_quota\t%d\n", sdio->sched.ple_data_quota);
seq_printf(s, "pse_mcu_quota\t%d\n", sdio->sched.pse_mcu_quota);
seq_printf(s, "sched_deficit\t%d\n", sdio->sched.deficit);
return 0;
}
int mt7921_init_debugfs(struct mt792x_dev *dev)
{
struct dentry *dir;
dir = mt76_register_debugfs_fops(&dev->mphy, &fops_regval);
if (!dir)
return -ENOMEM;
if (mt76_is_mmio(&dev->mt76))
debugfs_create_devm_seqfile(dev->mt76.dev, "xmit-queues",
dir, mt792x_queues_read);
else
debugfs_create_devm_seqfile(dev->mt76.dev, "xmit-queues",
dir, mt76_queues_read);
debugfs_create_devm_seqfile(dev->mt76.dev, "acq", dir,
mt792x_queues_acq);
debugfs_create_devm_seqfile(dev->mt76.dev, "txpower_sku", dir,
mt7921_txpwr);
debugfs_create_file("tx_stats", 0400, dir, dev, &mt792x_tx_stats_fops);
debugfs_create_file("fw_debug", 0600, dir, dev, &fops_fw_debug);
debugfs_create_file("runtime-pm", 0600, dir, dev, &fops_pm);
debugfs_create_file("idle-timeout", 0600, dir, dev,
&fops_pm_idle_timeout);
debugfs_create_file("chip_reset", 0600, dir, dev, &fops_reset);
debugfs_create_devm_seqfile(dev->mt76.dev, "runtime_pm_stats", dir,
mt792x_pm_stats);
debugfs_create_file("deep-sleep", 0600, dir, dev, &fops_ds);
if (mt76_is_sdio(&dev->mt76))
debugfs_create_devm_seqfile(dev->mt76.dev, "sched-quota", dir,
mt7921s_sched_quota_read);
return 0;
}