mirror of
https://github.com/outbackdingo/mt76.git
synced 2026-10-24 21:36:52 +00:00
Leon YenandFelix Fietkau
1b370c689a
Some countries have strict RF restrictions where changing the regulatory domain dynamically based on the connected AP is not acceptable. This patch disables Beacon country IE hinting when a valid country code is set from usersland (e.g., by system using iw or CRDA). Signed-off-by: Leon Yen <[email protected]> Signed-off-by: Ming Yen Hsieh <[email protected]> Tested-by: David Ruth <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Felix Fietkau <[email protected]>
349 lines
8.9 KiB
C
349 lines
8.9 KiB
C
// SPDX-License-Identifier: ISC
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/* Copyright (C) 2020 MediaTek Inc. */
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#include <linux/etherdevice.h>
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#include <linux/hwmon.h>
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#include <linux/hwmon-sysfs.h>
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#include <linux/thermal.h>
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#include <linux/firmware.h>
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#include "mt7921.h"
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#include "../mt76_connac2_mac.h"
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#include "mcu.h"
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static ssize_t mt7921_thermal_temp_show(struct device *dev,
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struct device_attribute *attr,
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char *buf)
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{
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switch (to_sensor_dev_attr(attr)->index) {
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case 0: {
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struct mt792x_phy *phy = dev_get_drvdata(dev);
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struct mt792x_dev *mdev = phy->dev;
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int temperature;
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mt792x_mutex_acquire(mdev);
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temperature = mt7921_mcu_get_temperature(phy);
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mt792x_mutex_release(mdev);
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if (temperature < 0)
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return temperature;
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/* display in millidegree Celsius */
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return sprintf(buf, "%u\n", temperature * 1000);
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}
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default:
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return -EINVAL;
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}
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}
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static SENSOR_DEVICE_ATTR_RO(temp1_input, mt7921_thermal_temp, 0);
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static struct attribute *mt7921_hwmon_attrs[] = {
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&sensor_dev_attr_temp1_input.dev_attr.attr,
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NULL,
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};
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ATTRIBUTE_GROUPS(mt7921_hwmon);
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static int mt7921_thermal_init(struct mt792x_phy *phy)
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{
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struct wiphy *wiphy = phy->mt76->hw->wiphy;
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struct device *hwmon;
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const char *name;
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if (!IS_REACHABLE(CONFIG_HWMON))
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return 0;
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name = devm_kasprintf(&wiphy->dev, GFP_KERNEL, "mt7921_%s",
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wiphy_name(wiphy));
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if (!name)
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return -ENOMEM;
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hwmon = devm_hwmon_device_register_with_groups(&wiphy->dev, name, phy,
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mt7921_hwmon_groups);
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return PTR_ERR_OR_ZERO(hwmon);
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}
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static void
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mt7921_regd_channel_update(struct wiphy *wiphy, struct mt792x_dev *dev)
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{
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#define IS_UNII_INVALID(idx, sfreq, efreq) \
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(!(dev->phy.clc_chan_conf & BIT(idx)) && (cfreq) >= (sfreq) && (cfreq) <= (efreq))
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struct ieee80211_supported_band *sband;
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struct mt76_dev *mdev = &dev->mt76;
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struct device_node *np, *band_np;
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struct ieee80211_channel *ch;
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int i, cfreq;
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np = mt76_find_power_limits_node(mdev);
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sband = wiphy->bands[NL80211_BAND_5GHZ];
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band_np = np ? of_get_child_by_name(np, "txpower-5g") : NULL;
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for (i = 0; i < sband->n_channels; i++) {
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ch = &sband->channels[i];
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cfreq = ch->center_freq;
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if (np && (!band_np || !mt76_find_channel_node(band_np, ch))) {
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ch->flags |= IEEE80211_CHAN_DISABLED;
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continue;
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}
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/* UNII-4 */
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if (IS_UNII_INVALID(0, 5845, 5925))
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ch->flags |= IEEE80211_CHAN_DISABLED;
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}
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sband = wiphy->bands[NL80211_BAND_6GHZ];
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if (!sband)
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return;
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band_np = np ? of_get_child_by_name(np, "txpower-6g") : NULL;
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for (i = 0; i < sband->n_channels; i++) {
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ch = &sband->channels[i];
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cfreq = ch->center_freq;
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if (np && (!band_np || !mt76_find_channel_node(band_np, ch))) {
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ch->flags |= IEEE80211_CHAN_DISABLED;
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continue;
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}
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/* UNII-5/6/7/8 */
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if (IS_UNII_INVALID(1, 5925, 6425) ||
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IS_UNII_INVALID(2, 6425, 6525) ||
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IS_UNII_INVALID(3, 6525, 6875) ||
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IS_UNII_INVALID(4, 6875, 7125))
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ch->flags |= IEEE80211_CHAN_DISABLED;
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}
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}
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void mt7921_regd_update(struct mt792x_dev *dev)
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{
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struct mt76_dev *mdev = &dev->mt76;
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struct ieee80211_hw *hw = mdev->hw;
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struct wiphy *wiphy = hw->wiphy;
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mt7921_mcu_set_clc(dev, mdev->alpha2, dev->country_ie_env);
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mt7921_regd_channel_update(wiphy, dev);
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mt76_connac_mcu_set_channel_domain(hw->priv);
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mt7921_set_tx_sar_pwr(hw, NULL);
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}
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EXPORT_SYMBOL_GPL(mt7921_regd_update);
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static void
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mt7921_regd_notifier(struct wiphy *wiphy,
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struct regulatory_request *request)
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{
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struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
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struct mt792x_dev *dev = mt792x_hw_dev(hw);
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struct mt76_connac_pm *pm = &dev->pm;
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memcpy(dev->mt76.alpha2, request->alpha2, sizeof(dev->mt76.alpha2));
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dev->mt76.region = request->dfs_region;
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dev->country_ie_env = request->country_ie_env;
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if (request->initiator == NL80211_REGDOM_SET_BY_USER) {
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if (dev->mt76.alpha2[0] == '0' && dev->mt76.alpha2[1] == '0')
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wiphy->regulatory_flags &= ~REGULATORY_COUNTRY_IE_IGNORE;
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else
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wiphy->regulatory_flags |= REGULATORY_COUNTRY_IE_IGNORE;
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}
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if (pm->suspended)
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return;
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dev->regd_in_progress = true;
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mt792x_mutex_acquire(dev);
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mt7921_regd_update(dev);
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mt792x_mutex_release(dev);
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dev->regd_in_progress = false;
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wake_up(&dev->wait);
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}
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int mt7921_mac_init(struct mt792x_dev *dev)
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{
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int i;
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mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536);
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/* enable hardware de-agg */
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mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN);
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/* enable hardware rx header translation */
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mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_RX_HDR_TRANS_EN);
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for (i = 0; i < MT792x_WTBL_SIZE; i++)
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mt7921_mac_wtbl_update(dev, i,
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MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
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for (i = 0; i < 2; i++)
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mt792x_mac_init_band(dev, i);
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return mt76_connac_mcu_set_rts_thresh(&dev->mt76, 0x92b, 0);
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}
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EXPORT_SYMBOL_GPL(mt7921_mac_init);
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static int __mt7921_init_hardware(struct mt792x_dev *dev)
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{
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int ret;
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/* force firmware operation mode into normal state,
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* which should be set before firmware download stage.
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*/
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mt76_wr(dev, MT_SWDEF_MODE, MT_SWDEF_NORMAL_MODE);
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ret = mt792x_mcu_init(dev);
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if (ret)
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goto out;
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mt76_eeprom_override(&dev->mphy);
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ret = mt7921_mcu_set_eeprom(dev);
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if (ret)
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goto out;
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ret = mt7921_mac_init(dev);
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out:
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return ret;
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}
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static int mt7921_init_hardware(struct mt792x_dev *dev)
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{
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int ret, i;
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set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
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for (i = 0; i < MT792x_MCU_INIT_RETRY_COUNT; i++) {
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ret = __mt7921_init_hardware(dev);
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if (!ret)
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break;
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mt792x_init_reset(dev);
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}
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if (i == MT792x_MCU_INIT_RETRY_COUNT) {
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dev_err(dev->mt76.dev, "hardware init failed\n");
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return ret;
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}
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return 0;
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}
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static void mt7921_init_work(struct work_struct *work)
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{
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struct mt792x_dev *dev = container_of(work, struct mt792x_dev,
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init_work);
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int ret;
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ret = mt7921_init_hardware(dev);
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if (ret)
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return;
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mt76_set_stream_caps(&dev->mphy, true);
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mt7921_set_stream_he_caps(&dev->phy);
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mt792x_config_mac_addr_list(dev);
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ret = mt76_register_device(&dev->mt76, true, mt76_rates,
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ARRAY_SIZE(mt76_rates));
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if (ret) {
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dev_err(dev->mt76.dev, "register device failed\n");
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return;
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}
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ret = mt7921_init_debugfs(dev);
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if (ret) {
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dev_err(dev->mt76.dev, "register debugfs failed\n");
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return;
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}
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ret = mt7921_thermal_init(&dev->phy);
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if (ret) {
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dev_err(dev->mt76.dev, "thermal init failed\n");
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return;
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}
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/* we support chip reset now */
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dev->hw_init_done = true;
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mt76_connac_mcu_set_deep_sleep(&dev->mt76, dev->pm.ds_enable);
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}
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int mt7921_register_device(struct mt792x_dev *dev)
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{
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struct ieee80211_hw *hw = mt76_hw(dev);
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int ret;
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dev->phy.dev = dev;
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dev->phy.mt76 = &dev->mt76.phy;
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dev->mt76.phy.priv = &dev->phy;
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dev->mt76.tx_worker.fn = mt792x_tx_worker;
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INIT_DELAYED_WORK(&dev->pm.ps_work, mt792x_pm_power_save_work);
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INIT_WORK(&dev->pm.wake_work, mt792x_pm_wake_work);
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spin_lock_init(&dev->pm.wake.lock);
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mutex_init(&dev->pm.mutex);
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init_waitqueue_head(&dev->pm.wait);
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init_waitqueue_head(&dev->wait);
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if (mt76_is_sdio(&dev->mt76))
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init_waitqueue_head(&dev->mt76.sdio.wait);
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spin_lock_init(&dev->pm.txq_lock);
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INIT_DELAYED_WORK(&dev->mphy.mac_work, mt792x_mac_work);
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INIT_DELAYED_WORK(&dev->phy.scan_work, mt7921_scan_work);
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INIT_DELAYED_WORK(&dev->coredump.work, mt7921_coredump_work);
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#if IS_ENABLED(CONFIG_IPV6)
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INIT_WORK(&dev->ipv6_ns_work, mt7921_set_ipv6_ns_work);
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skb_queue_head_init(&dev->ipv6_ns_list);
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#endif
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skb_queue_head_init(&dev->phy.scan_event_list);
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skb_queue_head_init(&dev->coredump.msg_list);
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INIT_WORK(&dev->reset_work, mt7921_mac_reset_work);
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INIT_WORK(&dev->init_work, mt7921_init_work);
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INIT_WORK(&dev->phy.roc_work, mt7921_roc_work);
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timer_setup(&dev->phy.roc_timer, mt792x_roc_timer, 0);
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init_waitqueue_head(&dev->phy.roc_wait);
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dev->pm.idle_timeout = MT792x_PM_TIMEOUT;
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dev->pm.stats.last_wake_event = jiffies;
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dev->pm.stats.last_doze_event = jiffies;
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if (!mt76_is_usb(&dev->mt76)) {
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dev->pm.enable_user = true;
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dev->pm.enable = true;
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dev->pm.ds_enable_user = true;
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dev->pm.ds_enable = true;
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}
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if (!mt76_is_mmio(&dev->mt76))
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hw->extra_tx_headroom += MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE;
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mt792x_init_acpi_sar(dev);
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ret = mt792x_init_wcid(dev);
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if (ret)
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return ret;
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ret = mt792x_init_wiphy(hw);
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if (ret)
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return ret;
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hw->wiphy->reg_notifier = mt7921_regd_notifier;
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dev->mphy.sband_2g.sband.ht_cap.cap |=
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IEEE80211_HT_CAP_LDPC_CODING |
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IEEE80211_HT_CAP_MAX_AMSDU;
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dev->mphy.sband_5g.sband.ht_cap.cap |=
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IEEE80211_HT_CAP_LDPC_CODING |
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IEEE80211_HT_CAP_MAX_AMSDU;
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dev->mphy.sband_5g.sband.vht_cap.cap |=
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IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
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IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
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IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
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IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE |
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(3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
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if (is_mt7922(&dev->mt76))
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dev->mphy.sband_5g.sband.vht_cap.cap |=
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IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
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IEEE80211_VHT_CAP_SHORT_GI_160;
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dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask;
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dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask;
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queue_work(system_wq, &dev->init_work);
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return 0;
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}
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EXPORT_SYMBOL_GPL(mt7921_register_device);
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