[][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_dma.h b/autobuild_mac80211_release/mt7988_mt7996_mac80211/package/kernel/mt76/src/mt76x02_dma.h
new file mode 100644
index 0000000..23b0e7d
--- /dev/null
+++ b/autobuild_mac80211_release/mt7988_mt7996_mac80211/package/kernel/mt76/src/mt76x02_dma.h
@@ -0,0 +1,65 @@
+/* SPDX-License-Identifier: ISC */
+/*
+ * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
+ */
+
+#ifndef __MT76x02_DMA_H
+#define __MT76x02_DMA_H
+
+#include "mt76x02.h"
+#include "dma.h"
+
+#define MT_TXD_INFO_LEN			GENMASK(15, 0)
+#define MT_TXD_INFO_NEXT_VLD		BIT(16)
+#define MT_TXD_INFO_TX_BURST		BIT(17)
+#define MT_TXD_INFO_80211		BIT(19)
+#define MT_TXD_INFO_TSO			BIT(20)
+#define MT_TXD_INFO_CSO			BIT(21)
+#define MT_TXD_INFO_WIV			BIT(24)
+#define MT_TXD_INFO_QSEL		GENMASK(26, 25)
+#define MT_TXD_INFO_DPORT		GENMASK(29, 27)
+#define MT_TXD_INFO_TYPE		GENMASK(31, 30)
+
+#define MT_RX_FCE_INFO_LEN		GENMASK(13, 0)
+#define MT_RX_FCE_INFO_SELF_GEN		BIT(15)
+#define MT_RX_FCE_INFO_CMD_SEQ		GENMASK(19, 16)
+#define MT_RX_FCE_INFO_EVT_TYPE		GENMASK(23, 20)
+#define MT_RX_FCE_INFO_PCIE_INTR	BIT(24)
+#define MT_RX_FCE_INFO_QSEL		GENMASK(26, 25)
+#define MT_RX_FCE_INFO_D_PORT		GENMASK(29, 27)
+#define MT_RX_FCE_INFO_TYPE		GENMASK(31, 30)
+
+/* MCU request message header  */
+#define MT_MCU_MSG_LEN			GENMASK(15, 0)
+#define MT_MCU_MSG_CMD_SEQ		GENMASK(19, 16)
+#define MT_MCU_MSG_CMD_TYPE		GENMASK(26, 20)
+#define MT_MCU_MSG_PORT			GENMASK(29, 27)
+#define MT_MCU_MSG_TYPE			GENMASK(31, 30)
+#define MT_MCU_MSG_TYPE_CMD		BIT(30)
+
+#define MT_RX_HEADROOM			32
+#define MT76X02_RX_RING_SIZE		256
+
+enum dma_msg_port {
+	WLAN_PORT,
+	CPU_RX_PORT,
+	CPU_TX_PORT,
+	HOST_PORT,
+	VIRTUAL_CPU_RX_PORT,
+	VIRTUAL_CPU_TX_PORT,
+	DISCARD,
+};
+
+static inline bool
+mt76x02_wait_for_wpdma(struct mt76_dev *dev, int timeout)
+{
+	return __mt76_poll(dev, MT_WPDMA_GLO_CFG,
+			   MT_WPDMA_GLO_CFG_TX_DMA_BUSY |
+			   MT_WPDMA_GLO_CFG_RX_DMA_BUSY,
+			   0, timeout);
+}
+
+int mt76x02_dma_init(struct mt76x02_dev *dev);
+void mt76x02_dma_disable(struct mt76x02_dev *dev);
+
+#endif /* __MT76x02_DMA_H */