[][MAC80211][misc][preliminary version of Filogic 680 on Filogic 880]
[Description]
Add preliminary version of Filogic 680 on Filogic 880.
Based on mt76 revision: 269df4b01f27 ("wifi: mt76: fix rx checksum offload on mt7615/mt7915/mt7921")
This series adds mt7996, a new mac80211 driver for MediaTek Wi-Fi 7
(802.11be) devices, which currently supports AP, station, mesh, and
monitor modes.
mt7996 first supports Filogic 680, which is a Wi-Fi 7 chipset supporting
concurrent tri-band operation at 6 GHz, 5 GHz, and 2.4 GHz with 4x4
antennas on each band. There are several variants that will be added in
upcoming patches. For more details, please refer to [1].
mt7996 supports only Wi-Fi 6E at the moment, whereas Wi-Fi 7 and its
specific features are work in progress. They will be introduced in
further patches.
[1] https://corp.mediatek.com/news-events/press-releases/mediatek-announces-worlds-first-complete-wi-fi-7-platforms-for-access-points-and-clients
[Release-log]
N/A
Change-Id: I7d3dea2626556751c9b0462e587743fad5287be0
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/6709775
diff --git a/autobuild_mac80211_release/mt7988_mt7996_mac80211/package/kernel/mt76/src/mt76x02_beacon.c b/autobuild_mac80211_release/mt7988_mt7996_mac80211/package/kernel/mt76/src/mt76x02_beacon.c
new file mode 100644
index 0000000..67844e2
--- /dev/null
+++ b/autobuild_mac80211_release/mt7988_mt7996_mac80211/package/kernel/mt76/src/mt76x02_beacon.c
@@ -0,0 +1,217 @@
+// SPDX-License-Identifier: ISC
+/*
+ * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
+ * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
+ * Copyright (C) 2018 Stanislaw Gruszka <stf_xl@wp.pl>
+ */
+
+#include "mt76x02.h"
+
+static void mt76x02_set_beacon_offsets(struct mt76x02_dev *dev)
+{
+ u32 regs[4] = {};
+ u16 val;
+ int i;
+
+ for (i = 0; i < dev->beacon_ops->nslots; i++) {
+ val = i * dev->beacon_ops->slot_size;
+ regs[i / 4] |= (val / 64) << (8 * (i % 4));
+ }
+
+ for (i = 0; i < 4; i++)
+ mt76_wr(dev, MT_BCN_OFFSET(i), regs[i]);
+}
+
+static int
+mt76x02_write_beacon(struct mt76x02_dev *dev, int offset, struct sk_buff *skb)
+{
+ int beacon_len = dev->beacon_ops->slot_size;
+
+ if (WARN_ON_ONCE(beacon_len < skb->len + sizeof(struct mt76x02_txwi)))
+ return -ENOSPC;
+
+ /* USB devices already reserve enough skb headroom for txwi's. This
+ * helps to save slow copies over USB.
+ */
+ if (mt76_is_usb(&dev->mt76)) {
+ struct mt76x02_txwi *txwi;
+
+ txwi = (struct mt76x02_txwi *)(skb->data - sizeof(*txwi));
+ mt76x02_mac_write_txwi(dev, txwi, skb, NULL, NULL, skb->len);
+ skb_push(skb, sizeof(*txwi));
+ } else {
+ struct mt76x02_txwi txwi;
+
+ mt76x02_mac_write_txwi(dev, &txwi, skb, NULL, NULL, skb->len);
+ mt76_wr_copy(dev, offset, &txwi, sizeof(txwi));
+ offset += sizeof(txwi);
+ }
+
+ mt76_wr_copy(dev, offset, skb->data, skb->len);
+ return 0;
+}
+
+void mt76x02_mac_set_beacon(struct mt76x02_dev *dev,
+ struct sk_buff *skb)
+{
+ int bcn_len = dev->beacon_ops->slot_size;
+ int bcn_addr = MT_BEACON_BASE + (bcn_len * dev->beacon_data_count);
+
+ if (!mt76x02_write_beacon(dev, bcn_addr, skb)) {
+ if (!dev->beacon_data_count)
+ dev->beacon_hang_check++;
+ dev->beacon_data_count++;
+ }
+ dev_kfree_skb(skb);
+}
+EXPORT_SYMBOL_GPL(mt76x02_mac_set_beacon);
+
+void mt76x02_mac_set_beacon_enable(struct mt76x02_dev *dev,
+ struct ieee80211_vif *vif, bool enable)
+{
+ struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv;
+ u8 old_mask = dev->mt76.beacon_mask;
+
+ mt76x02_pre_tbtt_enable(dev, false);
+
+ if (!dev->mt76.beacon_mask)
+ dev->tbtt_count = 0;
+
+ dev->beacon_hang_check = 0;
+ if (enable) {
+ dev->mt76.beacon_mask |= BIT(mvif->idx);
+ } else {
+ dev->mt76.beacon_mask &= ~BIT(mvif->idx);
+ }
+
+ if (!!old_mask == !!dev->mt76.beacon_mask)
+ goto out;
+
+ if (dev->mt76.beacon_mask)
+ mt76_set(dev, MT_BEACON_TIME_CFG,
+ MT_BEACON_TIME_CFG_BEACON_TX |
+ MT_BEACON_TIME_CFG_TBTT_EN |
+ MT_BEACON_TIME_CFG_TIMER_EN);
+ else
+ mt76_clear(dev, MT_BEACON_TIME_CFG,
+ MT_BEACON_TIME_CFG_BEACON_TX |
+ MT_BEACON_TIME_CFG_TBTT_EN |
+ MT_BEACON_TIME_CFG_TIMER_EN);
+ mt76x02_beacon_enable(dev, !!dev->mt76.beacon_mask);
+
+out:
+ mt76x02_pre_tbtt_enable(dev, true);
+}
+
+void
+mt76x02_resync_beacon_timer(struct mt76x02_dev *dev)
+{
+ u32 timer_val = dev->mt76.beacon_int << 4;
+
+ dev->tbtt_count++;
+
+ /*
+ * Beacon timer drifts by 1us every tick, the timer is configured
+ * in 1/16 TU (64us) units.
+ */
+ if (dev->tbtt_count < 63)
+ return;
+
+ /*
+ * The updated beacon interval takes effect after two TBTT, because
+ * at this point the original interval has already been loaded into
+ * the next TBTT_TIMER value
+ */
+ if (dev->tbtt_count == 63)
+ timer_val -= 1;
+
+ mt76_rmw_field(dev, MT_BEACON_TIME_CFG,
+ MT_BEACON_TIME_CFG_INTVAL, timer_val);
+
+ if (dev->tbtt_count >= 64)
+ dev->tbtt_count = 0;
+}
+EXPORT_SYMBOL_GPL(mt76x02_resync_beacon_timer);
+
+void
+mt76x02_update_beacon_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
+{
+ struct mt76x02_dev *dev = (struct mt76x02_dev *)priv;
+ struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv;
+ struct sk_buff *skb = NULL;
+
+ if (!(dev->mt76.beacon_mask & BIT(mvif->idx)))
+ return;
+
+ skb = ieee80211_beacon_get(mt76_hw(dev), vif);
+ if (!skb)
+ return;
+
+ mt76x02_mac_set_beacon(dev, skb);
+}
+EXPORT_SYMBOL_GPL(mt76x02_update_beacon_iter);
+
+static void
+mt76x02_add_buffered_bc(void *priv, u8 *mac, struct ieee80211_vif *vif)
+{
+ struct beacon_bc_data *data = priv;
+ struct mt76x02_dev *dev = data->dev;
+ struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv;
+ struct ieee80211_tx_info *info;
+ struct sk_buff *skb;
+
+ if (!(dev->mt76.beacon_mask & BIT(mvif->idx)))
+ return;
+
+ skb = ieee80211_get_buffered_bc(mt76_hw(dev), vif);
+ if (!skb)
+ return;
+
+ info = IEEE80211_SKB_CB(skb);
+ info->control.vif = vif;
+ info->flags |= IEEE80211_TX_CTL_ASSIGN_SEQ;
+ mt76_skb_set_moredata(skb, true);
+ __skb_queue_tail(&data->q, skb);
+ data->tail[mvif->idx] = skb;
+}
+
+void
+mt76x02_enqueue_buffered_bc(struct mt76x02_dev *dev,
+ struct beacon_bc_data *data,
+ int max_nframes)
+{
+ int i, nframes;
+
+ data->dev = dev;
+ __skb_queue_head_init(&data->q);
+
+ do {
+ nframes = skb_queue_len(&data->q);
+ ieee80211_iterate_active_interfaces_atomic(mt76_hw(dev),
+ IEEE80211_IFACE_ITER_RESUME_ALL,
+ mt76x02_add_buffered_bc, data);
+ } while (nframes != skb_queue_len(&data->q) &&
+ skb_queue_len(&data->q) < max_nframes);
+
+ if (!skb_queue_len(&data->q))
+ return;
+
+ for (i = 0; i < ARRAY_SIZE(data->tail); i++) {
+ if (!data->tail[i])
+ continue;
+ mt76_skb_set_moredata(data->tail[i], false);
+ }
+}
+EXPORT_SYMBOL_GPL(mt76x02_enqueue_buffered_bc);
+
+void mt76x02_init_beacon_config(struct mt76x02_dev *dev)
+{
+ mt76_clear(dev, MT_BEACON_TIME_CFG, (MT_BEACON_TIME_CFG_TIMER_EN |
+ MT_BEACON_TIME_CFG_TBTT_EN |
+ MT_BEACON_TIME_CFG_BEACON_TX));
+ mt76_set(dev, MT_BEACON_TIME_CFG, MT_BEACON_TIME_CFG_SYNC_MODE);
+ mt76_wr(dev, MT_BCN_BYPASS_MASK, 0xffff);
+ mt76x02_set_beacon_offsets(dev);
+}
+EXPORT_SYMBOL_GPL(mt76x02_init_beacon_config);
+