gitops/mt76
1
0
Fork 0
mirror of https://github.com/outbackdingo/mt76.git synced 2026-10-24 21:36:52 +00:00
Code Issues Packages Projects Releases Wiki Activity
Files
4f2aa9910e0c61ad9a16f22aefb4dc515ea27582
mt76/mt7925/init.c
T
Jacobs WuandFelix Fietkau 724801b83a wifi: mt76: mt7925: support deferred NAN schedule update and cluster events 
Send the is_deferred flag in the availability control TLV so FW
applies a deferred schedule change at the next DW boundary, and report
the NAN_UNI_EVENT_ID_SCHED_UPDATE_DONE and STARTED_CLUSTER events to
mac80211 via ieee80211_nan_sched_update_done() and
ieee80211_nan_cluster_joined().

Both events arrive on the BH-disabled MCU RX path, where notifying
mac80211 inline is wrong: ieee80211_nan_sched_update_done() needs the
wiphy mutex and may sleep, and ieee80211_nan_cluster_joined() would
fire during NAN_START before mac80211 sets sdata->u.nan.started and
before the supplicant subscribes to NL80211_MCGRP_NAN, so the
self-anchor cluster-join is lost and a solo anchor master can never
publish a service.

Deliver both events from a shared nan_deferred_work selected by a
pending bitmap instead. The bitmap spinlock is taken with
spin_lock_bh() on the RX side, the work re-checks nan_vif under the
wiphy mutex, and the stop path clears the bitmap. STARTED_CLUSTER
signals new_cluster=true, and JOINED_CLUSTER is corrected to
new_cluster=false.

Fixes: a5487a682406 ("wifi: mt76: mt7925: add NAN MCU helpers")
Co-developed-by: Sean Wang <[email protected]>
Signed-off-by: Sean Wang <[email protected]>
Co-developed-by: Stella Liu <[email protected]>
Signed-off-by: Stella Liu <[email protected]>
Signed-off-by: Jacobs Wu <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
2026-08-25 11:25:29 +02:00

333 lines
8.1 KiB
C
Raw Blame History

// SPDX-License-Identifier: BSD-3-Clause-Clear
/* Copyright (C) 2023 MediaTek Inc. */
#include <linux/etherdevice.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/thermal.h>
#include <linux/firmware.h>
#include "mt7925.h"
#include "regd.h"
#include "mac.h"
#include "mcu.h"
static ssize_t mt7925_thermal_temp_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
switch (to_sensor_dev_attr(attr)->index) {
case 0: {
struct mt792x_phy *phy = dev_get_drvdata(dev);
struct mt792x_dev *mdev = phy->dev;
int temperature;
mt792x_mutex_acquire(mdev);
temperature = mt7925_mcu_get_temperature(phy);
mt792x_mutex_release(mdev);
if (temperature < 0)
return temperature;
/* display in millidegree Celsius */
return sprintf(buf, "%u\n", temperature * 1000);
}
default:
return -EINVAL;
}
}
static SENSOR_DEVICE_ATTR_RO(temp1_input, mt7925_thermal_temp, 0);
static struct attribute *mt7925_hwmon_attrs[] = {
&sensor_dev_attr_temp1_input.dev_attr.attr,
NULL,
};
ATTRIBUTE_GROUPS(mt7925_hwmon);
static int mt7925_thermal_init(struct mt792x_phy *phy)
{
struct wiphy *wiphy = phy->mt76->hw->wiphy;
struct device *hwmon;
const char *name;
if (!IS_REACHABLE(CONFIG_HWMON))
return 0;
name = devm_kasprintf(&wiphy->dev, GFP_KERNEL, "mt7925_%s",
wiphy_name(wiphy));
if (!name)
return -ENOMEM;
hwmon = devm_hwmon_device_register_with_groups(&wiphy->dev, name, phy,
mt7925_hwmon_groups);
return PTR_ERR_OR_ZERO(hwmon);
}
static void mt7925_mac_init_basic_rates(struct mt792x_dev *dev)
{
int i;
for (i = 0; i < ARRAY_SIZE(mt76_rates); i++) {
u16 rate = mt76_rates[i].hw_value;
u16 idx = MT792x_BASIC_RATES_TBL + i;
rate = FIELD_PREP(MT_TX_RATE_MODE, rate >> 8) |
FIELD_PREP(MT_TX_RATE_IDX, rate & GENMASK(7, 0));
mt7925_mac_set_fixed_rate_table(dev, idx, rate);
}
}
int mt7925_mac_init(struct mt792x_dev *dev)
{
int i;
mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536);
/* enable hardware de-agg */
mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN);
for (i = 0; i < MT792x_WTBL_SIZE; i++)
mt7925_mac_wtbl_update(dev, i,
MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
for (i = 0; i < 2; i++)
mt792x_mac_init_band(dev, i);
mt7925_mac_init_basic_rates(dev);
memzero_explicit(&dev->mt76.alpha2, sizeof(dev->mt76.alpha2));
return 0;
}
EXPORT_SYMBOL_GPL(mt7925_mac_init);
static int __mt7925_init_hardware(struct mt792x_dev *dev)
{
int ret;
ret = mt792x_mcu_init(dev);
if (ret)
goto out;
ret = mt76_eeprom_override(&dev->mphy);
if (ret)
goto out;
ret = mt7925_mcu_set_eeprom(dev);
if (ret)
goto out;
ret = mt7925_mac_init(dev);
if (ret)
goto out;
if (is_mt7927(&dev->mt76)) {
ret = mt7925_mcu_set_dbdc(&dev->mphy, true);
if (ret) {
dev_warn(dev->mt76.dev,
"MT7927 DBDC enable failed: %d\n", ret);
ret = 0;
}
}
out:
return ret;
}
static int mt7925_init_hardware(struct mt792x_dev *dev)
{
int ret, i;
set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
for (i = 0; i < MT792x_MCU_INIT_RETRY_COUNT; i++) {
if (atomic_read(&dev->mt76.bus_hung)) {
ret = -EIO;
break;
}
ret = __mt7925_init_hardware(dev);
if (!ret)
break;
if (atomic_read(&dev->mt76.bus_hung))
break;
mt792x_init_reset(dev);
}
if (i == MT792x_MCU_INIT_RETRY_COUNT) {
dev_err(dev->mt76.dev, "hardware init failed\n");
return ret;
}
return 0;
}
static int mt7925_init_nan_cap(struct mt76_dev *mdev)
{
struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
const struct ieee80211_sta_he_cap *he_cap;
struct ieee80211_supported_band *sband;
struct wiphy *wiphy = mdev->hw->wiphy;
if (!(dev->fw_features & MT792x_FW_CAP_NAN))
return 0;
sband = wiphy->bands[NL80211_BAND_2GHZ];
if (sband)
wiphy->nan_capa.phy.ht = sband->ht_cap;
sband = wiphy->bands[NL80211_BAND_5GHZ];
if (sband)
wiphy->nan_capa.phy.vht = sband->vht_cap;
sband = wiphy->bands[NL80211_BAND_2GHZ];
he_cap = sband ? ieee80211_get_he_iftype_cap(sband, NL80211_IFTYPE_NAN)
: NULL;
if (he_cap)
wiphy->nan_capa.phy.he = *he_cap;
return 0;
}
static void mt7925_init_work(struct work_struct *work)
{
struct mt792x_dev *dev = container_of(work, struct mt792x_dev,
init_work);
int ret;
ret = mt7925_init_hardware(dev);
if (ret)
return;
mt76_set_stream_caps(&dev->mphy, true);
mt7925_set_stream_he_eht_caps(&dev->phy);
mt792x_config_mac_addr_list(dev);
ret = mt7925_init_mlo_caps(&dev->phy);
if (ret) {
dev_err(dev->mt76.dev, "MLO init failed\n");
return;
}
dev->mt76.init_wiphy = mt7925_init_nan_cap;
ret = mt76_register_device(&dev->mt76, true, mt76_rates,
ARRAY_SIZE(mt76_rates));
if (ret) {
dev_err(dev->mt76.dev, "register device failed\n");
return;
}
ret = mt7925_init_debugfs(dev);
if (ret) {
dev_err(dev->mt76.dev, "register debugfs failed\n");
return;
}
ret = mt7925_thermal_init(&dev->phy);
if (ret) {
dev_err(dev->mt76.dev, "thermal init failed\n");
return;
}
ret = mt7925_mcu_set_thermal_protect(dev);
if (ret) {
dev_err(dev->mt76.dev, "thermal protection enable failed\n");
return;
}
/* we support chip reset now */
dev->hw_init_done = true;
mt7925_mcu_set_deep_sleep(dev, dev->pm.ds_enable);
}
int mt7925_register_device(struct mt792x_dev *dev)
{
struct ieee80211_hw *hw = mt76_hw(dev);
int ret;
dev->phy.dev = dev;
dev->phy.mt76 = &dev->mt76.phy;
dev->mt76.phy.priv = &dev->phy;
dev->mt76.tx_worker.fn = mt792x_tx_worker;
INIT_DELAYED_WORK(&dev->pm.ps_work, mt792x_pm_power_save_work);
INIT_DELAYED_WORK(&dev->mlo_pm_work, mt7925_mlo_pm_work);
INIT_WORK(&dev->pm.wake_work, mt792x_pm_wake_work);
spin_lock_init(&dev->pm.wake.lock);
mutex_init(&dev->pm.mutex);
init_waitqueue_head(&dev->pm.wait);
init_waitqueue_head(&dev->wait);
spin_lock_init(&dev->pm.txq_lock);
INIT_DELAYED_WORK(&dev->mphy.mac_work, mt792x_mac_work);
INIT_DELAYED_WORK(&dev->phy.scan_work, mt7925_scan_work);
INIT_DELAYED_WORK(&dev->coredump.work, mt7925_coredump_work);
#if IS_ENABLED(CONFIG_IPV6)
INIT_WORK(&dev->ipv6_ns_work, mt7925_set_ipv6_ns_work);
skb_queue_head_init(&dev->ipv6_ns_list);
#endif
skb_queue_head_init(&dev->phy.scan_event_list);
skb_queue_head_init(&dev->coredump.msg_list);
INIT_WORK(&dev->reset_work, mt7925_mac_reset_work);
INIT_WORK(&dev->init_work, mt7925_init_work);
INIT_WORK(&dev->nan_deferred_work, mt7925_nan_deferred_work);
spin_lock_init(&dev->nan_deferred_lock);
INIT_WORK(&dev->phy.roc_work, mt7925_roc_work);
timer_setup(&dev->phy.roc_timer, mt792x_roc_timer, 0);
init_waitqueue_head(&dev->phy.roc_wait);
dev->pm.idle_timeout = MT792x_PM_TIMEOUT;
dev->pm.stats.last_wake_event = jiffies;
dev->pm.stats.last_doze_event = jiffies;
/* MT7927: runtime PM crashes BT firmware on the shared CONNINFRA domain */
if (!mt76_is_usb(&dev->mt76) && !is_mt7927(&dev->mt76)) {
dev->pm.enable_user = true;
dev->pm.enable = true;
dev->pm.ds_enable_user = true;
dev->pm.ds_enable = true;
}
if (!mt76_is_mmio(&dev->mt76))
hw->extra_tx_headroom += MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE;
mt792x_init_acpi_sar(dev);
ret = mt792x_init_wcid(dev);
if (ret)
return ret;
ret = mt792x_init_wiphy(hw);
if (ret)
return ret;
hw->wiphy->reg_notifier = mt7925_regd_notifier;
dev->mphy.sband_2g.sband.ht_cap.cap |=
IEEE80211_HT_CAP_LDPC_CODING |
IEEE80211_HT_CAP_MAX_AMSDU;
dev->mphy.sband_2g.sband.ht_cap.ampdu_density =
IEEE80211_HT_MPDU_DENSITY_2;
dev->mphy.sband_5g.sband.ht_cap.cap |=
IEEE80211_HT_CAP_LDPC_CODING |
IEEE80211_HT_CAP_MAX_AMSDU;
dev->mphy.sband_2g.sband.ht_cap.ampdu_density =
IEEE80211_HT_MPDU_DENSITY_1;
dev->mphy.sband_5g.sband.vht_cap.cap |=
IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE |
(3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
dev->mphy.sband_5g.sband.vht_cap.cap |=
IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
IEEE80211_VHT_CAP_SHORT_GI_160;
dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask;
dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask;
queue_work(system_wq, &dev->init_work);
return 0;
}
EXPORT_SYMBOL_GPL(mt7925_register_device);
Reference in New Issue View Git Blame Copy Permalink