[][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/mt7921/testmode.c b/autobuild_mac80211_release/mt7988_mt7996_mac80211/package/kernel/mt76/src/mt7921/testmode.c
new file mode 100644
index 0000000..bdec868
--- /dev/null
+++ b/autobuild_mac80211_release/mt7988_mt7996_mac80211/package/kernel/mt76/src/mt7921/testmode.c
@@ -0,0 +1,197 @@
+// SPDX-License-Identifier: ISC
+
+#include "mt7921.h"
+#include "mcu.h"
+
+enum mt7921_testmode_attr {
+	MT7921_TM_ATTR_UNSPEC,
+	MT7921_TM_ATTR_SET,
+	MT7921_TM_ATTR_QUERY,
+	MT7921_TM_ATTR_RSP,
+
+	/* keep last */
+	NUM_MT7921_TM_ATTRS,
+	MT7921_TM_ATTR_MAX = NUM_MT7921_TM_ATTRS - 1,
+};
+
+struct mt7921_tm_cmd {
+	u8 action;
+	u32 param0;
+	u32 param1;
+};
+
+struct mt7921_tm_evt {
+	u32 param0;
+	u32 param1;
+};
+
+static const struct nla_policy mt7921_tm_policy[NUM_MT7921_TM_ATTRS] = {
+	[MT7921_TM_ATTR_SET] = NLA_POLICY_EXACT_LEN(sizeof(struct mt7921_tm_cmd)),
+	[MT7921_TM_ATTR_QUERY] = NLA_POLICY_EXACT_LEN(sizeof(struct mt7921_tm_cmd)),
+};
+
+static int
+mt7921_tm_set(struct mt7921_dev *dev, struct mt7921_tm_cmd *req)
+{
+	struct mt7921_rftest_cmd cmd = {
+		.action = req->action,
+		.param0 = cpu_to_le32(req->param0),
+		.param1 = cpu_to_le32(req->param1),
+	};
+	bool testmode = false, normal = false;
+	struct mt76_connac_pm *pm = &dev->pm;
+	struct mt76_phy *phy = &dev->mphy;
+	int ret = -ENOTCONN;
+
+	mutex_lock(&dev->mt76.mutex);
+
+	if (req->action == TM_SWITCH_MODE) {
+		if (req->param0 == MT7921_TM_NORMAL)
+			normal = true;
+		else
+			testmode = true;
+	}
+
+	if (testmode) {
+		/* Make sure testmode running on full power mode */
+		pm->enable = false;
+		cancel_delayed_work_sync(&pm->ps_work);
+		cancel_work_sync(&pm->wake_work);
+		__mt7921_mcu_drv_pmctrl(dev);
+
+		mt76_wr(dev, MT_WF_RFCR(0), dev->mt76.rxfilter);
+		phy->test.state = MT76_TM_STATE_ON;
+	}
+
+	if (!mt76_testmode_enabled(phy))
+		goto out;
+
+	ret = mt76_mcu_send_msg(&dev->mt76, MCU_CE_CMD(TEST_CTRL), &cmd,
+				sizeof(cmd), false);
+	if (ret)
+		goto out;
+
+	if (normal) {
+		/* Switch back to the normal world */
+		phy->test.state = MT76_TM_STATE_OFF;
+		pm->enable = true;
+	}
+out:
+	mutex_unlock(&dev->mt76.mutex);
+
+	return ret;
+}
+
+static int
+mt7921_tm_query(struct mt7921_dev *dev, struct mt7921_tm_cmd *req,
+		struct mt7921_tm_evt *evt_resp)
+{
+	struct mt7921_rftest_cmd cmd = {
+		.action = req->action,
+		.param0 = cpu_to_le32(req->param0),
+		.param1 = cpu_to_le32(req->param1),
+	};
+	struct mt7921_rftest_evt *evt;
+	struct sk_buff *skb;
+	int ret;
+
+	ret = mt76_mcu_send_and_get_msg(&dev->mt76, MCU_CE_CMD(TEST_CTRL),
+					&cmd, sizeof(cmd), true, &skb);
+	if (ret)
+		goto out;
+
+	evt = (struct mt7921_rftest_evt *)skb->data;
+	evt_resp->param0 = le32_to_cpu(evt->param0);
+	evt_resp->param1 = le32_to_cpu(evt->param1);
+out:
+	dev_kfree_skb(skb);
+
+	return ret;
+}
+
+int mt7921_testmode_cmd(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+			void *data, int len)
+{
+	struct nlattr *tb[NUM_MT76_TM_ATTRS];
+	struct mt76_phy *mphy = hw->priv;
+	struct mt7921_phy *phy = mphy->priv;
+	int err;
+
+	if (!test_bit(MT76_STATE_RUNNING, &mphy->state) ||
+	    !(hw->conf.flags & IEEE80211_CONF_MONITOR))
+		return -ENOTCONN;
+
+	err = nla_parse_deprecated(tb, MT76_TM_ATTR_MAX, data, len,
+				   mt76_tm_policy, NULL);
+	if (err)
+		return err;
+
+	if (tb[MT76_TM_ATTR_DRV_DATA]) {
+		struct nlattr *drv_tb[NUM_MT7921_TM_ATTRS], *data;
+		int ret;
+
+		data = tb[MT76_TM_ATTR_DRV_DATA];
+		ret = nla_parse_nested_deprecated(drv_tb,
+						  MT7921_TM_ATTR_MAX,
+						  data, mt7921_tm_policy,
+						  NULL);
+		if (ret)
+			return ret;
+
+		data = drv_tb[MT7921_TM_ATTR_SET];
+		if (data)
+			return mt7921_tm_set(phy->dev, nla_data(data));
+	}
+
+	return -EINVAL;
+}
+
+int mt7921_testmode_dump(struct ieee80211_hw *hw, struct sk_buff *msg,
+			 struct netlink_callback *cb, void *data, int len)
+{
+	struct nlattr *tb[NUM_MT76_TM_ATTRS];
+	struct mt76_phy *mphy = hw->priv;
+	struct mt7921_phy *phy = mphy->priv;
+	int err;
+
+	if (!test_bit(MT76_STATE_RUNNING, &mphy->state) ||
+	    !(hw->conf.flags & IEEE80211_CONF_MONITOR) ||
+	    !mt76_testmode_enabled(mphy))
+		return -ENOTCONN;
+
+	if (cb->args[2]++ > 0)
+		return -ENOENT;
+
+	err = nla_parse_deprecated(tb, MT76_TM_ATTR_MAX, data, len,
+				   mt76_tm_policy, NULL);
+	if (err)
+		return err;
+
+	if (tb[MT76_TM_ATTR_DRV_DATA]) {
+		struct nlattr *drv_tb[NUM_MT7921_TM_ATTRS], *data;
+		int ret;
+
+		data = tb[MT76_TM_ATTR_DRV_DATA];
+		ret = nla_parse_nested_deprecated(drv_tb,
+						  MT7921_TM_ATTR_MAX,
+						  data, mt7921_tm_policy,
+						  NULL);
+		if (ret)
+			return ret;
+
+		data = drv_tb[MT7921_TM_ATTR_QUERY];
+		if (data) {
+			struct mt7921_tm_evt evt_resp;
+
+			err = mt7921_tm_query(phy->dev, nla_data(data),
+					      &evt_resp);
+			if (err)
+				return err;
+
+			return nla_put(msg, MT7921_TM_ATTR_RSP,
+				       sizeof(evt_resp), &evt_resp);
+		}
+	}
+
+	return -EINVAL;
+}