diff options
| author | Lorenzo Bianconi <lorenzo@kernel.org> | 2020-11-13 11:11:31 +0100 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2020-12-04 14:31:15 +0100 |
| commit | 4c430774e01b06337a1aaeabc3f9f62815ed1a58 (patch) | |
| tree | 041f4eb0e45794504c8e658814f0780ea0e82247 /drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c | |
| parent | 98df2baeb364389948f56d2b235bfc5902d64e01 (diff) | |
| download | linux-4c430774e01b06337a1aaeabc3f9f62815ed1a58.tar.gz | |
mt76: mt7915: introduce dbdc support
Introduce mt7915 dbdc support. If dbdc is available, mt7915 primary phy
will work on 2.4GHz band, while secondary one on 5GHz band.
Co-developed-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Co-developed-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c | 47 |
1 files changed, 31 insertions, 16 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c b/drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c index 6f0f1d4c702a..7a2be3f61398 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c @@ -43,35 +43,50 @@ static int mt7915_check_eeprom(struct mt7915_dev *dev) } } -static void mt7915_eeprom_parse_hw_cap(struct mt7915_dev *dev) +void mt7915_eeprom_parse_band_config(struct mt7915_phy *phy) { - u8 *eeprom = dev->mt76.eeprom.data; - u8 tx_mask, max_nss = 4; - u32 val = mt7915_eeprom_read(dev, MT_EE_WIFI_CONF); + struct mt7915_dev *dev = phy->dev; + bool ext_phy = phy != &dev->phy; + u32 val; + val = mt7915_eeprom_read(dev, MT_EE_WIFI_CONF + ext_phy); val = FIELD_GET(MT_EE_WIFI_CONF_BAND_SEL, val); switch (val) { case MT_EE_5GHZ: - dev->mphy.cap.has_5ghz = true; + phy->mt76->cap.has_5ghz = true; break; case MT_EE_2GHZ: - dev->mphy.cap.has_2ghz = true; + phy->mt76->cap.has_2ghz = true; break; default: - dev->mphy.cap.has_2ghz = true; - dev->mphy.cap.has_5ghz = true; + phy->mt76->cap.has_2ghz = true; + phy->mt76->cap.has_5ghz = true; break; } +} + +static void mt7915_eeprom_parse_hw_cap(struct mt7915_dev *dev) +{ + u8 nss, tx_mask[2] = {}, *eeprom = dev->mt76.eeprom.data; + + mt7915_eeprom_parse_band_config(&dev->phy); /* read tx mask from eeprom */ - tx_mask = FIELD_GET(MT_EE_WIFI_CONF_TX_MASK, - eeprom[MT_EE_WIFI_CONF]); - if (!tx_mask || tx_mask > max_nss) - tx_mask = max_nss; - - dev->chainmask = BIT(tx_mask) - 1; - dev->mphy.antenna_mask = dev->chainmask; - dev->phy.chainmask = dev->chainmask; + tx_mask[0] = FIELD_GET(MT_EE_WIFI_CONF_TX_MASK, + eeprom[MT_EE_WIFI_CONF]); + if (dev->dbdc_support) + tx_mask[1] = FIELD_GET(MT_EE_WIFI_CONF_TX_MASK, + eeprom[MT_EE_WIFI_CONF + 1]); + + nss = tx_mask[0] + tx_mask[1]; + if (!nss || nss > 4) { + tx_mask[0] = 4; + nss = 4; + } + + dev->chainmask = BIT(nss) - 1; + dev->mphy.antenna_mask = BIT(tx_mask[0]) - 1; + dev->phy.chainmask = dev->mphy.antenna_mask; } int mt7915_eeprom_init(struct mt7915_dev *dev) |