[][Add initial mtk feed for OpenWRT v21.02]

[Description]
Add initial mtk feed for OpenWRT v21.02

[Release-log]
N/A

Change-Id: I8051c6ba87f1ccf26c02fdd88a17d66f63c0b101
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/4495320
diff --git a/feed/mt76-vendor/src/mt76-vendor.h b/feed/mt76-vendor/src/mt76-vendor.h
new file mode 100644
index 0000000..3407903
--- /dev/null
+++ b/feed/mt76-vendor/src/mt76-vendor.h
@@ -0,0 +1,142 @@
+// SPDX-License-Identifier: ISC
+/* Copyright (C) 2020 Felix Fietkau <nbd@nbd.name> */
+#ifndef __MT76_TEST_H
+#define __MT76_TEST_H
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+
+#include <linux/nl80211.h>
+#include <netlink/attr.h>
+#include <unl.h>
+
+typedef uint8_t u8;
+typedef uint16_t u16;
+typedef uint32_t u32;
+typedef uint64_t u64;
+typedef int8_t s8;
+typedef int16_t s16;
+typedef int32_t s32;
+typedef int64_t s64, ktime_t;
+
+#define MTK_NL80211_VENDOR_ID	0x0ce7
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
+#endif
+
+#ifndef DIV_ROUND_UP
+#define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
+#endif
+
+struct nl_msg;
+struct nlattr;
+
+enum mtk_nl80211_vendor_subcmds {
+	MTK_NL80211_VENDOR_SUBCMD_CSI_CTRL = 0xc2,
+};
+
+enum mtk_vendor_attr_csi_ctrl {
+	MTK_VENDOR_ATTR_CSI_CTRL_UNSPEC,
+
+	MTK_VENDOR_ATTR_CSI_CTRL_CFG,
+	MTK_VENDOR_ATTR_CSI_CTRL_CFG_MODE,
+	MTK_VENDOR_ATTR_CSI_CTRL_CFG_TYPE,
+	MTK_VENDOR_ATTR_CSI_CTRL_CFG_VAL1,
+	MTK_VENDOR_ATTR_CSI_CTRL_CFG_VAL2,
+	MTK_VENDOR_ATTR_CSI_CTRL_MAC_ADDR,
+
+	MTK_VENDOR_ATTR_CSI_CTRL_DUMP_NUM,
+
+	MTK_VENDOR_ATTR_CSI_CTRL_DATA,
+
+	/* keep last */
+	NUM_MTK_VENDOR_ATTRS_CSI_CTRL,
+	MTK_VENDOR_ATTR_CSI_CTRL_MAX =
+		NUM_MTK_VENDOR_ATTRS_CSI_CTRL - 1
+};
+
+enum mtk_vendor_attr_csi_data {
+	MTK_VENDOR_ATTR_CSI_DATA_UNSPEC,
+	MTK_VENDOR_ATTR_CSI_DATA_PAD,
+
+	MTK_VENDOR_ATTR_CSI_DATA_VER,
+	MTK_VENDOR_ATTR_CSI_DATA_TS,
+	MTK_VENDOR_ATTR_CSI_DATA_RSSI,
+	MTK_VENDOR_ATTR_CSI_DATA_SNR,
+	MTK_VENDOR_ATTR_CSI_DATA_BW,
+	MTK_VENDOR_ATTR_CSI_DATA_CH_IDX,
+	MTK_VENDOR_ATTR_CSI_DATA_TA,
+	MTK_VENDOR_ATTR_CSI_DATA_I,
+	MTK_VENDOR_ATTR_CSI_DATA_Q,
+	MTK_VENDOR_ATTR_CSI_DATA_INFO,
+	MTK_VENDOR_ATTR_CSI_DATA_RSVD1,
+	MTK_VENDOR_ATTR_CSI_DATA_RSVD2,
+	MTK_VENDOR_ATTR_CSI_DATA_RSVD3,
+	MTK_VENDOR_ATTR_CSI_DATA_RSVD4,
+	MTK_VENDOR_ATTR_CSI_DATA_TX_ANT,
+	MTK_VENDOR_ATTR_CSI_DATA_RX_ANT,
+	MTK_VENDOR_ATTR_CSI_DATA_MODE,
+	MTK_VENDOR_ATTR_CSI_DATA_H_IDX,
+
+	/* keep last */
+	NUM_MTK_VENDOR_ATTRS_CSI_DATA,
+	MTK_VENDOR_ATTR_CSI_DATA_MAX =
+		NUM_MTK_VENDOR_ATTRS_CSI_DATA - 1
+};
+
+#define CSI_MAX_COUNT 256
+#define ETH_ALEN 6
+
+struct csi_data {
+	s16 data_i[CSI_MAX_COUNT];
+	s16 data_q[CSI_MAX_COUNT];
+	s8 rssi;
+	u8 snr;
+	ktime_t ts;
+	u8 data_bw;
+	u8 pri_ch_idx;
+	u8 ta[ETH_ALEN];
+	u32 info;
+	u8 rx_mode;
+	u32 h_idx;
+	u16 tx_idx;
+	u16 rx_idx;
+};
+
+struct vendor_field {
+	const char *name;
+	const char *prefix;
+
+	bool (*parse)(const struct vendor_field *field, int idx, struct nl_msg *msg,
+		      const char *val);
+	void (*print)(const struct vendor_field *field, struct nlattr *attr);
+
+	union {
+		struct {
+			const char * const *enum_str;
+			int enum_len;
+		};
+		struct {
+			bool (*parse2)(const struct vendor_field *field, int idx,
+				       struct nl_msg *msg, const char *val);
+			void (*print2)(const struct vendor_field *field,
+				       struct nlattr *attr);
+		};
+		struct {
+			void (*print_extra)(const struct vendor_field *field,
+					    struct nlattr **tb);
+			const struct vendor_field *fields;
+			struct nla_policy *policy;
+			int len;
+		};
+	};
+};
+
+extern struct unl unl;
+extern const struct vendor_field msg_field;
+
+void usage(void);
+
+#endif