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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/net/wireless/mediatek/mt76/mt76x02_util.c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt76x02_util.c')
-rw-r--r--drivers/net/wireless/mediatek/mt76/mt76x02_util.c700
1 files changed, 700 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_util.c b/drivers/net/wireless/mediatek/mt76/mt76x02_util.c
new file mode 100644
index 000000000..324535a0d
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt76x02_util.c
@@ -0,0 +1,700 @@
+// SPDX-License-Identifier: ISC
+/*
+ * Copyright (C) 2018 Stanislaw Gruszka <stf_xl@wp.pl>
+ * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
+ */
+
+#include <linux/module.h>
+#include "mt76x02.h"
+
+#define MT76x02_CCK_RATE(_idx, _rate) { \
+ .bitrate = _rate, \
+ .flags = IEEE80211_RATE_SHORT_PREAMBLE, \
+ .hw_value = (MT_PHY_TYPE_CCK << 8) | (_idx), \
+ .hw_value_short = (MT_PHY_TYPE_CCK << 8) | (8 + (_idx)), \
+}
+
+struct ieee80211_rate mt76x02_rates[] = {
+ MT76x02_CCK_RATE(0, 10),
+ MT76x02_CCK_RATE(1, 20),
+ MT76x02_CCK_RATE(2, 55),
+ MT76x02_CCK_RATE(3, 110),
+ OFDM_RATE(0, 60),
+ OFDM_RATE(1, 90),
+ OFDM_RATE(2, 120),
+ OFDM_RATE(3, 180),
+ OFDM_RATE(4, 240),
+ OFDM_RATE(5, 360),
+ OFDM_RATE(6, 480),
+ OFDM_RATE(7, 540),
+};
+EXPORT_SYMBOL_GPL(mt76x02_rates);
+
+static const struct ieee80211_iface_limit mt76x02_if_limits[] = {
+ {
+ .max = 1,
+ .types = BIT(NL80211_IFTYPE_ADHOC)
+ }, {
+ .max = 8,
+ .types = BIT(NL80211_IFTYPE_STATION) |
+#ifdef CONFIG_MAC80211_MESH
+ BIT(NL80211_IFTYPE_MESH_POINT) |
+#endif
+ BIT(NL80211_IFTYPE_P2P_CLIENT) |
+ BIT(NL80211_IFTYPE_P2P_GO) |
+ BIT(NL80211_IFTYPE_AP)
+ },
+};
+
+static const struct ieee80211_iface_limit mt76x02u_if_limits[] = {
+ {
+ .max = 1,
+ .types = BIT(NL80211_IFTYPE_ADHOC)
+ }, {
+ .max = 2,
+ .types = BIT(NL80211_IFTYPE_STATION) |
+#ifdef CONFIG_MAC80211_MESH
+ BIT(NL80211_IFTYPE_MESH_POINT) |
+#endif
+ BIT(NL80211_IFTYPE_P2P_CLIENT) |
+ BIT(NL80211_IFTYPE_P2P_GO) |
+ BIT(NL80211_IFTYPE_AP)
+ },
+};
+
+static const struct ieee80211_iface_combination mt76x02_if_comb[] = {
+ {
+ .limits = mt76x02_if_limits,
+ .n_limits = ARRAY_SIZE(mt76x02_if_limits),
+ .max_interfaces = 8,
+ .num_different_channels = 1,
+ .beacon_int_infra_match = true,
+ .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
+ BIT(NL80211_CHAN_WIDTH_20) |
+ BIT(NL80211_CHAN_WIDTH_40) |
+ BIT(NL80211_CHAN_WIDTH_80),
+ }
+};
+
+static const struct ieee80211_iface_combination mt76x02u_if_comb[] = {
+ {
+ .limits = mt76x02u_if_limits,
+ .n_limits = ARRAY_SIZE(mt76x02u_if_limits),
+ .max_interfaces = 2,
+ .num_different_channels = 1,
+ .beacon_int_infra_match = true,
+ }
+};
+
+static void
+mt76x02_led_set_config(struct mt76_dev *mdev, u8 delay_on,
+ u8 delay_off)
+{
+ struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev,
+ mt76);
+ u32 val;
+
+ val = FIELD_PREP(MT_LED_STATUS_DURATION, 0xff) |
+ FIELD_PREP(MT_LED_STATUS_OFF, delay_off) |
+ FIELD_PREP(MT_LED_STATUS_ON, delay_on);
+
+ mt76_wr(dev, MT_LED_S0(mdev->led_pin), val);
+ mt76_wr(dev, MT_LED_S1(mdev->led_pin), val);
+
+ val = MT_LED_CTRL_REPLAY(mdev->led_pin) |
+ MT_LED_CTRL_KICK(mdev->led_pin);
+ if (mdev->led_al)
+ val |= MT_LED_CTRL_POLARITY(mdev->led_pin);
+ mt76_wr(dev, MT_LED_CTRL, val);
+}
+
+static int
+mt76x02_led_set_blink(struct led_classdev *led_cdev,
+ unsigned long *delay_on,
+ unsigned long *delay_off)
+{
+ struct mt76_dev *mdev = container_of(led_cdev, struct mt76_dev,
+ led_cdev);
+ u8 delta_on, delta_off;
+
+ delta_off = max_t(u8, *delay_off / 10, 1);
+ delta_on = max_t(u8, *delay_on / 10, 1);
+
+ mt76x02_led_set_config(mdev, delta_on, delta_off);
+
+ return 0;
+}
+
+static void
+mt76x02_led_set_brightness(struct led_classdev *led_cdev,
+ enum led_brightness brightness)
+{
+ struct mt76_dev *mdev = container_of(led_cdev, struct mt76_dev,
+ led_cdev);
+
+ if (!brightness)
+ mt76x02_led_set_config(mdev, 0, 0xff);
+ else
+ mt76x02_led_set_config(mdev, 0xff, 0);
+}
+
+int mt76x02_init_device(struct mt76x02_dev *dev)
+{
+ struct ieee80211_hw *hw = mt76_hw(dev);
+ struct wiphy *wiphy = hw->wiphy;
+
+ INIT_DELAYED_WORK(&dev->mphy.mac_work, mt76x02_mac_work);
+
+ hw->queues = 4;
+ hw->max_rates = 1;
+ hw->max_report_rates = 7;
+ hw->max_rate_tries = 1;
+ hw->extra_tx_headroom = 2;
+
+ if (mt76_is_usb(&dev->mt76)) {
+ hw->extra_tx_headroom += sizeof(struct mt76x02_txwi) +
+ MT_DMA_HDR_LEN;
+ wiphy->iface_combinations = mt76x02u_if_comb;
+ wiphy->n_iface_combinations = ARRAY_SIZE(mt76x02u_if_comb);
+ } else {
+ INIT_DELAYED_WORK(&dev->wdt_work, mt76x02_wdt_work);
+
+ mt76x02_dfs_init_detector(dev);
+
+ wiphy->reg_notifier = mt76x02_regd_notifier;
+ wiphy->iface_combinations = mt76x02_if_comb;
+ wiphy->n_iface_combinations = ARRAY_SIZE(mt76x02_if_comb);
+
+ /* init led callbacks */
+ if (IS_ENABLED(CONFIG_MT76_LEDS)) {
+ dev->mt76.led_cdev.brightness_set =
+ mt76x02_led_set_brightness;
+ dev->mt76.led_cdev.blink_set = mt76x02_led_set_blink;
+ }
+ }
+
+ wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
+
+ hw->sta_data_size = sizeof(struct mt76x02_sta);
+ hw->vif_data_size = sizeof(struct mt76x02_vif);
+
+ ieee80211_hw_set(hw, SUPPORTS_HT_CCK_RATES);
+ ieee80211_hw_set(hw, HOST_BROADCAST_PS_BUFFERING);
+ ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR);
+
+ dev->mt76.global_wcid.idx = 255;
+ dev->mt76.global_wcid.hw_key_idx = -1;
+ dev->slottime = 9;
+
+ if (is_mt76x2(dev)) {
+ dev->mphy.sband_2g.sband.ht_cap.cap |=
+ IEEE80211_HT_CAP_LDPC_CODING;
+ dev->mphy.sband_5g.sband.ht_cap.cap |=
+ IEEE80211_HT_CAP_LDPC_CODING;
+ dev->mphy.chainmask = 0x202;
+ dev->mphy.antenna_mask = 3;
+ } else {
+ dev->mphy.chainmask = 0x101;
+ dev->mphy.antenna_mask = 1;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mt76x02_init_device);
+
+void mt76x02_configure_filter(struct ieee80211_hw *hw,
+ unsigned int changed_flags,
+ unsigned int *total_flags, u64 multicast)
+{
+ struct mt76x02_dev *dev = hw->priv;
+ u32 flags = 0;
+
+#define MT76_FILTER(_flag, _hw) do { \
+ flags |= *total_flags & FIF_##_flag; \
+ dev->mt76.rxfilter &= ~(_hw); \
+ dev->mt76.rxfilter |= !(flags & FIF_##_flag) * (_hw); \
+ } while (0)
+
+ mutex_lock(&dev->mt76.mutex);
+
+ dev->mt76.rxfilter &= ~MT_RX_FILTR_CFG_OTHER_BSS;
+
+ MT76_FILTER(FCSFAIL, MT_RX_FILTR_CFG_CRC_ERR);
+ MT76_FILTER(PLCPFAIL, MT_RX_FILTR_CFG_PHY_ERR);
+ MT76_FILTER(CONTROL, MT_RX_FILTR_CFG_ACK |
+ MT_RX_FILTR_CFG_CTS |
+ MT_RX_FILTR_CFG_CFEND |
+ MT_RX_FILTR_CFG_CFACK |
+ MT_RX_FILTR_CFG_BA |
+ MT_RX_FILTR_CFG_CTRL_RSV);
+ MT76_FILTER(PSPOLL, MT_RX_FILTR_CFG_PSPOLL);
+
+ *total_flags = flags;
+ mt76_wr(dev, MT_RX_FILTR_CFG, dev->mt76.rxfilter);
+
+ mutex_unlock(&dev->mt76.mutex);
+}
+EXPORT_SYMBOL_GPL(mt76x02_configure_filter);
+
+int mt76x02_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta)
+{
+ struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76);
+ struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv;
+ struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv;
+ int idx = 0;
+
+ memset(msta, 0, sizeof(*msta));
+
+ idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT76x02_N_WCIDS);
+ if (idx < 0)
+ return -ENOSPC;
+
+ msta->vif = mvif;
+ msta->wcid.sta = 1;
+ msta->wcid.idx = idx;
+ msta->wcid.hw_key_idx = -1;
+ mt76x02_mac_wcid_setup(dev, idx, mvif->idx, sta->addr);
+ mt76x02_mac_wcid_set_drop(dev, idx, false);
+ ewma_pktlen_init(&msta->pktlen);
+
+ if (vif->type == NL80211_IFTYPE_AP)
+ set_bit(MT_WCID_FLAG_CHECK_PS, &msta->wcid.flags);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mt76x02_sta_add);
+
+void mt76x02_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta)
+{
+ struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76);
+ struct mt76_wcid *wcid = (struct mt76_wcid *)sta->drv_priv;
+ int idx = wcid->idx;
+
+ mt76x02_mac_wcid_set_drop(dev, idx, true);
+ mt76x02_mac_wcid_setup(dev, idx, 0, NULL);
+}
+EXPORT_SYMBOL_GPL(mt76x02_sta_remove);
+
+static void
+mt76x02_vif_init(struct mt76x02_dev *dev, struct ieee80211_vif *vif,
+ unsigned int idx)
+{
+ struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv;
+ struct mt76_txq *mtxq;
+
+ memset(mvif, 0, sizeof(*mvif));
+
+ mvif->idx = idx;
+ mvif->group_wcid.idx = MT_VIF_WCID(idx);
+ mvif->group_wcid.hw_key_idx = -1;
+ mt76_packet_id_init(&mvif->group_wcid);
+
+ mtxq = (struct mt76_txq *)vif->txq->drv_priv;
+ rcu_assign_pointer(dev->mt76.wcid[MT_VIF_WCID(idx)], &mvif->group_wcid);
+ mtxq->wcid = MT_VIF_WCID(idx);
+}
+
+int
+mt76x02_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+{
+ struct mt76x02_dev *dev = hw->priv;
+ unsigned int idx = 0;
+
+ /* Allow to change address in HW if we create first interface. */
+ if (!dev->mt76.vif_mask &&
+ (((vif->addr[0] ^ dev->mphy.macaddr[0]) & ~GENMASK(4, 1)) ||
+ memcmp(vif->addr + 1, dev->mphy.macaddr + 1, ETH_ALEN - 1)))
+ mt76x02_mac_setaddr(dev, vif->addr);
+
+ if (vif->addr[0] & BIT(1))
+ idx = 1 + (((dev->mphy.macaddr[0] ^ vif->addr[0]) >> 2) & 7);
+
+ /*
+ * Client mode typically only has one configurable BSSID register,
+ * which is used for bssidx=0. This is linked to the MAC address.
+ * Since mac80211 allows changing interface types, and we cannot
+ * force the use of the primary MAC address for a station mode
+ * interface, we need some other way of configuring a per-interface
+ * remote BSSID.
+ * The hardware provides an AP-Client feature, where bssidx 0-7 are
+ * used for AP mode and bssidx 8-15 for client mode.
+ * We shift the station interface bss index by 8 to force the
+ * hardware to recognize the BSSID.
+ * The resulting bssidx mismatch for unicast frames is ignored by hw.
+ */
+ if (vif->type == NL80211_IFTYPE_STATION)
+ idx += 8;
+
+ /* vif is already set or idx is 8 for AP/Mesh/... */
+ if (dev->mt76.vif_mask & BIT_ULL(idx) ||
+ (vif->type != NL80211_IFTYPE_STATION && idx > 7))
+ return -EBUSY;
+
+ dev->mt76.vif_mask |= BIT_ULL(idx);
+
+ mt76x02_vif_init(dev, vif, idx);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mt76x02_add_interface);
+
+void mt76x02_remove_interface(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif)
+{
+ struct mt76x02_dev *dev = hw->priv;
+ struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv;
+
+ dev->mt76.vif_mask &= ~BIT_ULL(mvif->idx);
+ rcu_assign_pointer(dev->mt76.wcid[mvif->group_wcid.idx], NULL);
+ mt76_packet_id_flush(&dev->mt76, &mvif->group_wcid);
+}
+EXPORT_SYMBOL_GPL(mt76x02_remove_interface);
+
+int mt76x02_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct ieee80211_ampdu_params *params)
+{
+ enum ieee80211_ampdu_mlme_action action = params->action;
+ struct ieee80211_sta *sta = params->sta;
+ struct mt76x02_dev *dev = hw->priv;
+ struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv;
+ struct ieee80211_txq *txq = sta->txq[params->tid];
+ u16 tid = params->tid;
+ u16 ssn = params->ssn;
+ struct mt76_txq *mtxq;
+ int ret = 0;
+
+ if (!txq)
+ return -EINVAL;
+
+ mtxq = (struct mt76_txq *)txq->drv_priv;
+
+ mutex_lock(&dev->mt76.mutex);
+ switch (action) {
+ case IEEE80211_AMPDU_RX_START:
+ mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid,
+ ssn, params->buf_size);
+ mt76_set(dev, MT_WCID_ADDR(msta->wcid.idx) + 4, BIT(16 + tid));
+ break;
+ case IEEE80211_AMPDU_RX_STOP:
+ mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid);
+ mt76_clear(dev, MT_WCID_ADDR(msta->wcid.idx) + 4,
+ BIT(16 + tid));
+ break;
+ case IEEE80211_AMPDU_TX_OPERATIONAL:
+ mtxq->aggr = true;
+ mtxq->send_bar = false;
+ ieee80211_send_bar(vif, sta->addr, tid, mtxq->agg_ssn);
+ break;
+ case IEEE80211_AMPDU_TX_STOP_FLUSH:
+ case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
+ mtxq->aggr = false;
+ break;
+ case IEEE80211_AMPDU_TX_START:
+ mtxq->agg_ssn = IEEE80211_SN_TO_SEQ(ssn);
+ ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
+ break;
+ case IEEE80211_AMPDU_TX_STOP_CONT:
+ mtxq->aggr = false;
+ ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+ break;
+ }
+ mutex_unlock(&dev->mt76.mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(mt76x02_ampdu_action);
+
+int mt76x02_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
+ struct ieee80211_vif *vif, struct ieee80211_sta *sta,
+ struct ieee80211_key_conf *key)
+{
+ struct mt76x02_dev *dev = hw->priv;
+ struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv;
+ struct mt76x02_sta *msta;
+ struct mt76_wcid *wcid;
+ int idx = key->keyidx;
+ int ret;
+
+ /* fall back to sw encryption for unsupported ciphers */
+ switch (key->cipher) {
+ case WLAN_CIPHER_SUITE_WEP40:
+ case WLAN_CIPHER_SUITE_WEP104:
+ case WLAN_CIPHER_SUITE_TKIP:
+ case WLAN_CIPHER_SUITE_CCMP:
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ /*
+ * The hardware does not support per-STA RX GTK, fall back
+ * to software mode for these.
+ */
+ if ((vif->type == NL80211_IFTYPE_ADHOC ||
+ vif->type == NL80211_IFTYPE_MESH_POINT) &&
+ (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
+ key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
+ !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
+ return -EOPNOTSUPP;
+
+ /*
+ * In USB AP mode, broadcast/multicast frames are setup in beacon
+ * data registers and sent via HW beacons engine, they require to
+ * be already encrypted.
+ */
+ if (mt76_is_usb(&dev->mt76) &&
+ vif->type == NL80211_IFTYPE_AP &&
+ !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
+ return -EOPNOTSUPP;
+
+ /* MT76x0 GTK offloading does not work with more than one VIF */
+ if (is_mt76x0(dev) && !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
+ return -EOPNOTSUPP;
+
+ msta = sta ? (struct mt76x02_sta *)sta->drv_priv : NULL;
+ wcid = msta ? &msta->wcid : &mvif->group_wcid;
+
+ if (cmd != SET_KEY) {
+ if (idx == wcid->hw_key_idx) {
+ wcid->hw_key_idx = -1;
+ wcid->sw_iv = false;
+ }
+
+ return 0;
+ }
+
+ key->hw_key_idx = wcid->idx;
+ wcid->hw_key_idx = idx;
+ if (key->flags & IEEE80211_KEY_FLAG_RX_MGMT) {
+ key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
+ wcid->sw_iv = true;
+ }
+ mt76_wcid_key_setup(&dev->mt76, wcid, key);
+
+ if (!msta) {
+ if (key || wcid->hw_key_idx == idx) {
+ ret = mt76x02_mac_wcid_set_key(dev, wcid->idx, key);
+ if (ret)
+ return ret;
+ }
+
+ return mt76x02_mac_shared_key_setup(dev, mvif->idx, idx, key);
+ }
+
+ return mt76x02_mac_wcid_set_key(dev, msta->wcid.idx, key);
+}
+EXPORT_SYMBOL_GPL(mt76x02_set_key);
+
+int mt76x02_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ unsigned int link_id, u16 queue,
+ const struct ieee80211_tx_queue_params *params)
+{
+ struct mt76x02_dev *dev = hw->priv;
+ u8 cw_min = 5, cw_max = 10, qid;
+ u32 val;
+
+ qid = dev->mphy.q_tx[queue]->hw_idx;
+
+ if (params->cw_min)
+ cw_min = fls(params->cw_min);
+ if (params->cw_max)
+ cw_max = fls(params->cw_max);
+
+ val = FIELD_PREP(MT_EDCA_CFG_TXOP, params->txop) |
+ FIELD_PREP(MT_EDCA_CFG_AIFSN, params->aifs) |
+ FIELD_PREP(MT_EDCA_CFG_CWMIN, cw_min) |
+ FIELD_PREP(MT_EDCA_CFG_CWMAX, cw_max);
+ mt76_wr(dev, MT_EDCA_CFG_AC(qid), val);
+
+ val = mt76_rr(dev, MT_WMM_TXOP(qid));
+ val &= ~(MT_WMM_TXOP_MASK << MT_WMM_TXOP_SHIFT(qid));
+ val |= params->txop << MT_WMM_TXOP_SHIFT(qid);
+ mt76_wr(dev, MT_WMM_TXOP(qid), val);
+
+ val = mt76_rr(dev, MT_WMM_AIFSN);
+ val &= ~(MT_WMM_AIFSN_MASK << MT_WMM_AIFSN_SHIFT(qid));
+ val |= params->aifs << MT_WMM_AIFSN_SHIFT(qid);
+ mt76_wr(dev, MT_WMM_AIFSN, val);
+
+ val = mt76_rr(dev, MT_WMM_CWMIN);
+ val &= ~(MT_WMM_CWMIN_MASK << MT_WMM_CWMIN_SHIFT(qid));
+ val |= cw_min << MT_WMM_CWMIN_SHIFT(qid);
+ mt76_wr(dev, MT_WMM_CWMIN, val);
+
+ val = mt76_rr(dev, MT_WMM_CWMAX);
+ val &= ~(MT_WMM_CWMAX_MASK << MT_WMM_CWMAX_SHIFT(qid));
+ val |= cw_max << MT_WMM_CWMAX_SHIFT(qid);
+ mt76_wr(dev, MT_WMM_CWMAX, val);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mt76x02_conf_tx);
+
+void mt76x02_set_tx_ackto(struct mt76x02_dev *dev)
+{
+ u8 ackto, sifs, slottime = dev->slottime;
+
+ /* As defined by IEEE 802.11-2007 17.3.8.6 */
+ slottime += 3 * dev->coverage_class;
+ mt76_rmw_field(dev, MT_BKOFF_SLOT_CFG,
+ MT_BKOFF_SLOT_CFG_SLOTTIME, slottime);
+
+ sifs = mt76_get_field(dev, MT_XIFS_TIME_CFG,
+ MT_XIFS_TIME_CFG_OFDM_SIFS);
+
+ ackto = slottime + sifs;
+ mt76_rmw_field(dev, MT_TX_TIMEOUT_CFG,
+ MT_TX_TIMEOUT_CFG_ACKTO, ackto);
+}
+EXPORT_SYMBOL_GPL(mt76x02_set_tx_ackto);
+
+void mt76x02_set_coverage_class(struct ieee80211_hw *hw,
+ s16 coverage_class)
+{
+ struct mt76x02_dev *dev = hw->priv;
+
+ mutex_lock(&dev->mt76.mutex);
+ dev->coverage_class = max_t(s16, coverage_class, 0);
+ mt76x02_set_tx_ackto(dev);
+ mutex_unlock(&dev->mt76.mutex);
+}
+EXPORT_SYMBOL_GPL(mt76x02_set_coverage_class);
+
+int mt76x02_set_rts_threshold(struct ieee80211_hw *hw, u32 val)
+{
+ struct mt76x02_dev *dev = hw->priv;
+
+ if (val != ~0 && val > 0xffff)
+ return -EINVAL;
+
+ mutex_lock(&dev->mt76.mutex);
+ mt76x02_mac_set_rts_thresh(dev, val);
+ mutex_unlock(&dev->mt76.mutex);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mt76x02_set_rts_threshold);
+
+void mt76x02_sta_rate_tbl_update(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta)
+{
+ struct mt76x02_dev *dev = hw->priv;
+ struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv;
+ struct ieee80211_sta_rates *rates = rcu_dereference(sta->rates);
+ struct ieee80211_tx_rate rate = {};
+
+ if (!rates)
+ return;
+
+ rate.idx = rates->rate[0].idx;
+ rate.flags = rates->rate[0].flags;
+ mt76x02_mac_wcid_set_rate(dev, &msta->wcid, &rate);
+}
+EXPORT_SYMBOL_GPL(mt76x02_sta_rate_tbl_update);
+
+void mt76x02_remove_hdr_pad(struct sk_buff *skb, int len)
+{
+ int hdrlen;
+
+ if (!len)
+ return;
+
+ hdrlen = ieee80211_get_hdrlen_from_skb(skb);
+ memmove(skb->data + len, skb->data, hdrlen);
+ skb_pull(skb, len);
+}
+EXPORT_SYMBOL_GPL(mt76x02_remove_hdr_pad);
+
+void mt76x02_sw_scan_complete(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif)
+{
+ struct mt76x02_dev *dev = hw->priv;
+
+ clear_bit(MT76_SCANNING, &dev->mphy.state);
+ if (dev->cal.gain_init_done) {
+ /* Restore AGC gain and resume calibration after scanning. */
+ dev->cal.low_gain = -1;
+ ieee80211_queue_delayed_work(hw, &dev->cal_work, 0);
+ }
+}
+EXPORT_SYMBOL_GPL(mt76x02_sw_scan_complete);
+
+void mt76x02_sta_ps(struct mt76_dev *mdev, struct ieee80211_sta *sta,
+ bool ps)
+{
+ struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76);
+ struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv;
+ int idx = msta->wcid.idx;
+
+ mt76_stop_tx_queues(&dev->mphy, sta, true);
+ if (mt76_is_mmio(mdev))
+ mt76x02_mac_wcid_set_drop(dev, idx, ps);
+}
+EXPORT_SYMBOL_GPL(mt76x02_sta_ps);
+
+void mt76x02_bss_info_changed(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_bss_conf *info,
+ u64 changed)
+{
+ struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv;
+ struct mt76x02_dev *dev = hw->priv;
+
+ mutex_lock(&dev->mt76.mutex);
+
+ if (changed & BSS_CHANGED_BSSID)
+ mt76x02_mac_set_bssid(dev, mvif->idx, info->bssid);
+
+ if (changed & BSS_CHANGED_HT || changed & BSS_CHANGED_ERP_CTS_PROT)
+ mt76x02_mac_set_tx_protection(dev, info->use_cts_prot,
+ info->ht_operation_mode);
+
+ if (changed & BSS_CHANGED_BEACON_INT) {
+ mt76_rmw_field(dev, MT_BEACON_TIME_CFG,
+ MT_BEACON_TIME_CFG_INTVAL,
+ info->beacon_int << 4);
+ dev->mt76.beacon_int = info->beacon_int;
+ }
+
+ if (changed & BSS_CHANGED_BEACON_ENABLED)
+ mt76x02_mac_set_beacon_enable(dev, vif, info->enable_beacon);
+
+ if (changed & BSS_CHANGED_ERP_PREAMBLE)
+ mt76x02_mac_set_short_preamble(dev, info->use_short_preamble);
+
+ if (changed & BSS_CHANGED_ERP_SLOT) {
+ int slottime = info->use_short_slot ? 9 : 20;
+
+ dev->slottime = slottime;
+ mt76x02_set_tx_ackto(dev);
+ }
+
+ mutex_unlock(&dev->mt76.mutex);
+}
+EXPORT_SYMBOL_GPL(mt76x02_bss_info_changed);
+
+void mt76x02_config_mac_addr_list(struct mt76x02_dev *dev)
+{
+ struct ieee80211_hw *hw = mt76_hw(dev);
+ struct wiphy *wiphy = hw->wiphy;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(dev->macaddr_list); i++) {
+ u8 *addr = dev->macaddr_list[i].addr;
+
+ memcpy(addr, dev->mphy.macaddr, ETH_ALEN);
+
+ if (!i)
+ continue;
+
+ addr[0] |= BIT(1);
+ addr[0] ^= ((i - 1) << 2);
+ }
+ wiphy->addresses = dev->macaddr_list;
+ wiphy->n_addresses = ARRAY_SIZE(dev->macaddr_list);
+}
+EXPORT_SYMBOL_GPL(mt76x02_config_mac_addr_list);
+
+MODULE_LICENSE("Dual BSD/GPL");