forked from Qortal/Brooklyn
101 lines
1.8 KiB
C
101 lines
1.8 KiB
C
// SPDX-License-Identifier: ISC
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/* Copyright (C) 2020 MediaTek Inc. */
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#include "mt7921.h"
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#include "eeprom.h"
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static u32 mt7921_eeprom_read(struct mt7921_dev *dev, u32 offset)
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{
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u8 *data = dev->mt76.eeprom.data;
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if (data[offset] == 0xff)
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mt7921_mcu_get_eeprom(dev, offset);
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return data[offset];
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}
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static int mt7921_eeprom_load(struct mt7921_dev *dev)
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{
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int ret;
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ret = mt76_eeprom_init(&dev->mt76, MT7921_EEPROM_SIZE);
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if (ret < 0)
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return ret;
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memset(dev->mt76.eeprom.data, -1, MT7921_EEPROM_SIZE);
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return 0;
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}
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static int mt7921_check_eeprom(struct mt7921_dev *dev)
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{
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u8 *eeprom = dev->mt76.eeprom.data;
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u16 val;
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mt7921_eeprom_read(dev, MT_EE_CHIP_ID);
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val = get_unaligned_le16(eeprom);
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switch (val) {
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case 0x7961:
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return 0;
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default:
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return -EINVAL;
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}
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}
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void mt7921_eeprom_parse_band_config(struct mt7921_phy *phy)
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{
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struct mt7921_dev *dev = phy->dev;
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u32 val;
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val = mt7921_eeprom_read(dev, MT_EE_WIFI_CONF);
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val = FIELD_GET(MT_EE_WIFI_CONF_BAND_SEL, val);
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switch (val) {
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case MT_EE_5GHZ:
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phy->mt76->cap.has_5ghz = true;
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break;
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case MT_EE_2GHZ:
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phy->mt76->cap.has_2ghz = true;
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break;
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default:
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phy->mt76->cap.has_2ghz = true;
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phy->mt76->cap.has_5ghz = true;
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break;
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}
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}
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static void mt7921_eeprom_parse_hw_cap(struct mt7921_dev *dev)
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{
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u8 tx_mask;
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mt7921_eeprom_parse_band_config(&dev->phy);
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/* TODO: read NSS with MCU_CMD_NIC_CAPV2 */
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tx_mask = 2;
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dev->chainmask = BIT(tx_mask) - 1;
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dev->mphy.antenna_mask = dev->chainmask;
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dev->mphy.chainmask = dev->mphy.antenna_mask;
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}
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int mt7921_eeprom_init(struct mt7921_dev *dev)
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{
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int ret;
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ret = mt7921_eeprom_load(dev);
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if (ret < 0)
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return ret;
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ret = mt7921_check_eeprom(dev);
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if (ret)
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return ret;
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mt7921_eeprom_parse_hw_cap(dev);
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memcpy(dev->mphy.macaddr, dev->mt76.eeprom.data + MT_EE_MAC_ADDR,
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ETH_ALEN);
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mt76_eeprom_override(&dev->mphy);
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return 0;
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}
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