[][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/util.c b/autobuild_mac80211_release/mt7988_mt7996_mac80211/package/kernel/mt76/src/util.c
new file mode 100644
index 0000000..5819644
--- /dev/null
+++ b/autobuild_mac80211_release/mt7988_mt7996_mac80211/package/kernel/mt76/src/util.c
@@ -0,0 +1,141 @@
+// SPDX-License-Identifier: ISC
+/*
+ * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
+ */
+
+#include <linux/module.h>
+#include "mt76.h"
+
+bool __mt76_poll(struct mt76_dev *dev, u32 offset, u32 mask, u32 val,
+ int timeout)
+{
+ u32 cur;
+
+ timeout /= 10;
+ do {
+ cur = __mt76_rr(dev, offset) & mask;
+ if (cur == val)
+ return true;
+
+ udelay(10);
+ } while (timeout-- > 0);
+
+ return false;
+}
+EXPORT_SYMBOL_GPL(__mt76_poll);
+
+bool __mt76_poll_msec(struct mt76_dev *dev, u32 offset, u32 mask, u32 val,
+ int timeout)
+{
+ u32 cur;
+
+ timeout /= 10;
+ do {
+ cur = __mt76_rr(dev, offset) & mask;
+ if (cur == val)
+ return true;
+
+ usleep_range(10000, 20000);
+ } while (timeout-- > 0);
+
+ return false;
+}
+EXPORT_SYMBOL_GPL(__mt76_poll_msec);
+
+int mt76_wcid_alloc(u32 *mask, int size)
+{
+ int i, idx = 0, cur;
+
+ for (i = 0; i < DIV_ROUND_UP(size, 32); i++) {
+ idx = ffs(~mask[i]);
+ if (!idx)
+ continue;
+
+ idx--;
+ cur = i * 32 + idx;
+ if (cur >= size)
+ break;
+
+ mask[i] |= BIT(idx);
+ return cur;
+ }
+
+ return -1;
+}
+EXPORT_SYMBOL_GPL(mt76_wcid_alloc);
+
+int mt76_get_min_avg_rssi(struct mt76_dev *dev, bool ext_phy)
+{
+ struct mt76_wcid *wcid;
+ int i, j, min_rssi = 0;
+ s8 cur_rssi;
+
+ local_bh_disable();
+ rcu_read_lock();
+
+ for (i = 0; i < ARRAY_SIZE(dev->wcid_mask); i++) {
+ u32 mask = dev->wcid_mask[i];
+ u32 phy_mask = dev->wcid_phy_mask[i];
+
+ if (!mask)
+ continue;
+
+ for (j = i * 32; mask; j++, mask >>= 1, phy_mask >>= 1) {
+ if (!(mask & 1))
+ continue;
+
+ if (!!(phy_mask & 1) != ext_phy)
+ continue;
+
+ wcid = rcu_dereference(dev->wcid[j]);
+ if (!wcid)
+ continue;
+
+ spin_lock(&dev->rx_lock);
+ if (wcid->inactive_count++ < 5)
+ cur_rssi = -ewma_signal_read(&wcid->rssi);
+ else
+ cur_rssi = 0;
+ spin_unlock(&dev->rx_lock);
+
+ if (cur_rssi < min_rssi)
+ min_rssi = cur_rssi;
+ }
+ }
+
+ rcu_read_unlock();
+ local_bh_enable();
+
+ return min_rssi;
+}
+EXPORT_SYMBOL_GPL(mt76_get_min_avg_rssi);
+
+int __mt76_worker_fn(void *ptr)
+{
+ struct mt76_worker *w = ptr;
+
+ while (!kthread_should_stop()) {
+ set_current_state(TASK_INTERRUPTIBLE);
+
+ if (kthread_should_park()) {
+ kthread_parkme();
+ continue;
+ }
+
+ if (!test_and_clear_bit(MT76_WORKER_SCHEDULED, &w->state)) {
+ schedule();
+ continue;
+ }
+
+ set_bit(MT76_WORKER_RUNNING, &w->state);
+ set_current_state(TASK_RUNNING);
+ w->fn(w);
+ cond_resched();
+ clear_bit(MT76_WORKER_RUNNING, &w->state);
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(__mt76_worker_fn);
+
+MODULE_LICENSE("Dual BSD/GPL");