[][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_eeprom.h b/autobuild_mac80211_release/mt7988_mt7996_mac80211/package/kernel/mt76/src/mt76x02_eeprom.h
new file mode 100644
index 0000000..13fa708
--- /dev/null
+++ b/autobuild_mac80211_release/mt7988_mt7996_mac80211/package/kernel/mt76/src/mt76x02_eeprom.h
@@ -0,0 +1,185 @@
+/* SPDX-License-Identifier: ISC */
+/*
+ * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
+ * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
+ */
+
+#ifndef __MT76x02_EEPROM_H
+#define __MT76x02_EEPROM_H
+
+#include "mt76x02.h"
+
+enum mt76x02_eeprom_field {
+	MT_EE_CHIP_ID =				0x000,
+	MT_EE_VERSION =				0x002,
+	MT_EE_MAC_ADDR =			0x004,
+	MT_EE_PCI_ID =				0x00A,
+	MT_EE_ANTENNA =				0x022,
+	MT_EE_CFG1_INIT =			0x024,
+	MT_EE_NIC_CONF_0 =			0x034,
+	MT_EE_NIC_CONF_1 =			0x036,
+	MT_EE_COUNTRY_REGION_5GHZ =		0x038,
+	MT_EE_COUNTRY_REGION_2GHZ =		0x039,
+	MT_EE_FREQ_OFFSET =			0x03a,
+	MT_EE_NIC_CONF_2 =			0x042,
+
+	MT_EE_XTAL_TRIM_1 =			0x03a,
+	MT_EE_XTAL_TRIM_2 =			0x09e,
+
+	MT_EE_LNA_GAIN =			0x044,
+	MT_EE_RSSI_OFFSET_2G_0 =		0x046,
+	MT_EE_RSSI_OFFSET_2G_1 =		0x048,
+	MT_EE_LNA_GAIN_5GHZ_1 =			0x049,
+	MT_EE_RSSI_OFFSET_5G_0 =		0x04a,
+	MT_EE_RSSI_OFFSET_5G_1 =		0x04c,
+	MT_EE_LNA_GAIN_5GHZ_2 =			0x04d,
+
+	MT_EE_TX_POWER_DELTA_BW40 =		0x050,
+	MT_EE_TX_POWER_DELTA_BW80 =		0x052,
+
+	MT_EE_TX_POWER_EXT_PA_5G =		0x054,
+
+	MT_EE_TX_POWER_0_START_2G =		0x056,
+	MT_EE_TX_POWER_1_START_2G =		0x05c,
+
+	/* used as byte arrays */
+#define MT_TX_POWER_GROUP_SIZE_5G		5
+#define MT_TX_POWER_GROUPS_5G			6
+	MT_EE_TX_POWER_0_START_5G =		0x062,
+	MT_EE_TSSI_SLOPE_2G =			0x06e,
+
+	MT_EE_TX_POWER_0_GRP3_TX_POWER_DELTA =	0x074,
+	MT_EE_TX_POWER_0_GRP4_TSSI_SLOPE =	0x076,
+
+	MT_EE_TX_POWER_1_START_5G =		0x080,
+
+	MT_EE_TX_POWER_CCK =			0x0a0,
+	MT_EE_TX_POWER_OFDM_2G_6M =		0x0a2,
+	MT_EE_TX_POWER_OFDM_2G_24M =		0x0a4,
+	MT_EE_TX_POWER_OFDM_5G_6M =		0x0b2,
+	MT_EE_TX_POWER_OFDM_5G_24M =		0x0b4,
+	MT_EE_TX_POWER_HT_MCS0 =		0x0a6,
+	MT_EE_TX_POWER_HT_MCS4 =		0x0a8,
+	MT_EE_TX_POWER_HT_MCS8 =		0x0aa,
+	MT_EE_TX_POWER_HT_MCS12 =		0x0ac,
+	MT_EE_TX_POWER_VHT_MCS8 =		0x0be,
+
+	MT_EE_2G_TARGET_POWER =			0x0d0,
+	MT_EE_TEMP_OFFSET =			0x0d1,
+	MT_EE_5G_TARGET_POWER =			0x0d2,
+	MT_EE_TSSI_BOUND1 =			0x0d4,
+	MT_EE_TSSI_BOUND2 =			0x0d6,
+	MT_EE_TSSI_BOUND3 =			0x0d8,
+	MT_EE_TSSI_BOUND4 =			0x0da,
+	MT_EE_FREQ_OFFSET_COMPENSATION =	0x0db,
+	MT_EE_TSSI_BOUND5 =			0x0dc,
+	MT_EE_TX_POWER_BYRATE_BASE =		0x0de,
+
+	MT_EE_TSSI_SLOPE_5G =			0x0f0,
+	MT_EE_RF_TEMP_COMP_SLOPE_5G =		0x0f2,
+	MT_EE_RF_TEMP_COMP_SLOPE_2G =		0x0f4,
+
+	MT_EE_RF_2G_TSSI_OFF_TXPOWER =		0x0f6,
+	MT_EE_RF_2G_RX_HIGH_GAIN =		0x0f8,
+	MT_EE_RF_5G_GRP0_1_RX_HIGH_GAIN =	0x0fa,
+	MT_EE_RF_5G_GRP2_3_RX_HIGH_GAIN =	0x0fc,
+	MT_EE_RF_5G_GRP4_5_RX_HIGH_GAIN =	0x0fe,
+
+	MT_EE_BT_RCAL_RESULT =			0x138,
+	MT_EE_BT_VCDL_CALIBRATION =		0x13c,
+	MT_EE_BT_PMUCFG =			0x13e,
+
+	MT_EE_USAGE_MAP_START =			0x1e0,
+	MT_EE_USAGE_MAP_END =			0x1fc,
+
+	__MT_EE_MAX
+};
+
+#define MT_EE_ANTENNA_DUAL			BIT(15)
+
+#define MT_EE_NIC_CONF_0_RX_PATH		GENMASK(3, 0)
+#define MT_EE_NIC_CONF_0_TX_PATH		GENMASK(7, 4)
+#define MT_EE_NIC_CONF_0_PA_TYPE		GENMASK(9, 8)
+#define MT_EE_NIC_CONF_0_PA_INT_2G		BIT(8)
+#define MT_EE_NIC_CONF_0_PA_INT_5G		BIT(9)
+#define MT_EE_NIC_CONF_0_PA_IO_CURRENT		BIT(10)
+#define MT_EE_NIC_CONF_0_BOARD_TYPE		GENMASK(13, 12)
+
+#define MT_EE_NIC_CONF_1_HW_RF_CTRL		BIT(0)
+#define MT_EE_NIC_CONF_1_TEMP_TX_ALC		BIT(1)
+#define MT_EE_NIC_CONF_1_LNA_EXT_2G		BIT(2)
+#define MT_EE_NIC_CONF_1_LNA_EXT_5G		BIT(3)
+#define MT_EE_NIC_CONF_1_TX_ALC_EN		BIT(13)
+
+#define MT_EE_NIC_CONF_2_ANT_OPT		BIT(3)
+#define MT_EE_NIC_CONF_2_ANT_DIV		BIT(4)
+#define MT_EE_NIC_CONF_2_XTAL_OPTION		GENMASK(10, 9)
+
+#define MT_EFUSE_USAGE_MAP_SIZE			(MT_EE_USAGE_MAP_END - \
+						 MT_EE_USAGE_MAP_START + 1)
+
+enum mt76x02_eeprom_modes {
+	MT_EE_READ,
+	MT_EE_PHYSICAL_READ,
+};
+
+enum mt76x02_board_type {
+	BOARD_TYPE_2GHZ = 1,
+	BOARD_TYPE_5GHZ = 2,
+};
+
+static inline bool mt76x02_field_valid(u8 val)
+{
+	return val != 0 && val != 0xff;
+}
+
+static inline int
+mt76x02_sign_extend(u32 val, unsigned int size)
+{
+	bool sign = val & BIT(size - 1);
+
+	val &= BIT(size - 1) - 1;
+
+	return sign ? val : -val;
+}
+
+static inline int
+mt76x02_sign_extend_optional(u32 val, unsigned int size)
+{
+	bool enable = val & BIT(size);
+
+	return enable ? mt76x02_sign_extend(val, size) : 0;
+}
+
+static inline s8 mt76x02_rate_power_val(u8 val)
+{
+	if (!mt76x02_field_valid(val))
+		return 0;
+
+	return mt76x02_sign_extend_optional(val, 7);
+}
+
+static inline int
+mt76x02_eeprom_get(struct mt76x02_dev *dev,
+		   enum mt76x02_eeprom_field field)
+{
+	if ((field & 1) || field >= __MT_EE_MAX)
+		return -1;
+
+	return get_unaligned_le16(dev->mt76.eeprom.data + field);
+}
+
+bool mt76x02_ext_pa_enabled(struct mt76x02_dev *dev, enum nl80211_band band);
+int mt76x02_get_efuse_data(struct mt76x02_dev *dev, u16 base, void *buf,
+			   int len, enum mt76x02_eeprom_modes mode);
+void mt76x02_get_rx_gain(struct mt76x02_dev *dev, enum nl80211_band band,
+			 u16 *rssi_offset, s8 *lna_2g, s8 *lna_5g);
+u8 mt76x02_get_lna_gain(struct mt76x02_dev *dev,
+			s8 *lna_2g, s8 *lna_5g,
+			struct ieee80211_channel *chan);
+void mt76x02_eeprom_parse_hw_cap(struct mt76x02_dev *dev);
+int mt76x02_eeprom_copy(struct mt76x02_dev *dev,
+			enum mt76x02_eeprom_field field,
+			void *dest, int len);
+
+#endif /* __MT76x02_EEPROM_H */