diff options
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c | 184 |
1 files changed, 64 insertions, 120 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c b/drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c index 660398ac53c2..8ededf2e5279 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c @@ -8,12 +8,29 @@ static u32 mt7915_eeprom_read(struct mt7915_dev *dev, u32 offset) { u8 *data = dev->mt76.eeprom.data; - if (data[offset] == 0xff) + if (data[offset] == 0xff && !dev->flash_mode) mt7915_mcu_get_eeprom(dev, offset); return data[offset]; } +static int mt7915_eeprom_load_precal(struct mt7915_dev *dev) +{ + struct mt76_dev *mdev = &dev->mt76; + u32 val; + + val = mt7915_eeprom_read(dev, MT_EE_DO_PRE_CAL); + if (val != (MT_EE_WIFI_CAL_DPD | MT_EE_WIFI_CAL_GROUP)) + return 0; + + val = MT_EE_CAL_GROUP_SIZE + MT_EE_CAL_DPD_SIZE; + dev->cal = devm_kzalloc(mdev->dev, val, GFP_KERNEL); + if (!dev->cal) + return -ENOMEM; + + return mt76_get_of_eeprom(mdev, dev->cal, MT_EE_PRECAL, val); +} + static int mt7915_eeprom_load(struct mt7915_dev *dev) { int ret; @@ -22,12 +39,14 @@ static int mt7915_eeprom_load(struct mt7915_dev *dev) if (ret < 0) return ret; - if (ret) + if (ret) { dev->flash_mode = true; - else + ret = mt7915_eeprom_load_precal(dev); + } else { memset(dev->mt76.eeprom.data, -1, MT7915_EEPROM_SIZE); + } - return 0; + return ret; } static int mt7915_check_eeprom(struct mt7915_dev *dev) @@ -124,7 +143,7 @@ int mt7915_eeprom_get_target_power(struct mt7915_dev *dev, struct ieee80211_channel *chan, u8 chain_idx) { - int index; + int index, target_power; bool tssi_on; if (chain_idx > 3) @@ -133,131 +152,56 @@ int mt7915_eeprom_get_target_power(struct mt7915_dev *dev, tssi_on = mt7915_tssi_enabled(dev, chan->band); if (chan->band == NL80211_BAND_2GHZ) { - index = MT_EE_TX0_POWER_2G + chain_idx * 3 + !tssi_on; - } else { - int group = tssi_on ? - mt7915_get_channel_group(chan->hw_value) : 8; - - index = MT_EE_TX0_POWER_5G + chain_idx * 12 + group; - } - - return mt7915_eeprom_read(dev, index); -} + index = MT_EE_TX0_POWER_2G + chain_idx * 3; + target_power = mt7915_eeprom_read(dev, index); -static const u8 sku_cck_delta_map[] = { - SKU_CCK_GROUP0, - SKU_CCK_GROUP0, - SKU_CCK_GROUP1, - SKU_CCK_GROUP1, -}; + if (!tssi_on) + target_power += mt7915_eeprom_read(dev, index + 1); + } else { + int group = mt7915_get_channel_group(chan->hw_value); -static const u8 sku_ofdm_delta_map[] = { - SKU_OFDM_GROUP0, - SKU_OFDM_GROUP0, - SKU_OFDM_GROUP1, - SKU_OFDM_GROUP1, - SKU_OFDM_GROUP2, - SKU_OFDM_GROUP2, - SKU_OFDM_GROUP3, - SKU_OFDM_GROUP4, -}; + index = MT_EE_TX0_POWER_5G + chain_idx * 12; + target_power = mt7915_eeprom_read(dev, index + group); -static const u8 sku_mcs_delta_map[] = { - SKU_MCS_GROUP0, - SKU_MCS_GROUP1, - SKU_MCS_GROUP1, - SKU_MCS_GROUP2, - SKU_MCS_GROUP2, - SKU_MCS_GROUP3, - SKU_MCS_GROUP4, - SKU_MCS_GROUP5, - SKU_MCS_GROUP6, - SKU_MCS_GROUP7, - SKU_MCS_GROUP8, - SKU_MCS_GROUP9, -}; + if (!tssi_on) + target_power += mt7915_eeprom_read(dev, index + 8); + } -#define SKU_GROUP(_mode, _len, _ofs_2g, _ofs_5g, _map) \ - [_mode] = { \ - .len = _len, \ - .offset = { \ - _ofs_2g, \ - _ofs_5g, \ - }, \ - .delta_map = _map \ + return target_power; } -const struct sku_group mt7915_sku_groups[] = { - SKU_GROUP(SKU_CCK, 4, 0x252, 0, sku_cck_delta_map), - SKU_GROUP(SKU_OFDM, 8, 0x254, 0x29d, sku_ofdm_delta_map), - - SKU_GROUP(SKU_HT_BW20, 8, 0x259, 0x2a2, sku_mcs_delta_map), - SKU_GROUP(SKU_HT_BW40, 9, 0x262, 0x2ab, sku_mcs_delta_map), - SKU_GROUP(SKU_VHT_BW20, 12, 0x259, 0x2a2, sku_mcs_delta_map), - SKU_GROUP(SKU_VHT_BW40, 12, 0x262, 0x2ab, sku_mcs_delta_map), - SKU_GROUP(SKU_VHT_BW80, 12, 0, 0x2b4, sku_mcs_delta_map), - SKU_GROUP(SKU_VHT_BW160, 12, 0, 0, sku_mcs_delta_map), - - SKU_GROUP(SKU_HE_RU26, 12, 0x27f, 0x2dd, sku_mcs_delta_map), - SKU_GROUP(SKU_HE_RU52, 12, 0x289, 0x2e7, sku_mcs_delta_map), - SKU_GROUP(SKU_HE_RU106, 12, 0x293, 0x2f1, sku_mcs_delta_map), - SKU_GROUP(SKU_HE_RU242, 12, 0x26b, 0x2bf, sku_mcs_delta_map), - SKU_GROUP(SKU_HE_RU484, 12, 0x275, 0x2c9, sku_mcs_delta_map), - SKU_GROUP(SKU_HE_RU996, 12, 0, 0x2d3, sku_mcs_delta_map), - SKU_GROUP(SKU_HE_RU2x996, 12, 0, 0, sku_mcs_delta_map), -}; - -static s8 -mt7915_get_sku_delta(struct mt7915_dev *dev, u32 addr) +s8 mt7915_eeprom_get_power_delta(struct mt7915_dev *dev, int band) { - u32 val = mt7915_eeprom_read(dev, addr); - s8 delta = FIELD_GET(SKU_DELTA_VAL, val); + u32 val; + s8 delta; - if (!(val & SKU_DELTA_EN)) - return 0; + if (band == NL80211_BAND_2GHZ) + val = mt7915_eeprom_read(dev, MT_EE_RATE_DELTA_2G); + else + val = mt7915_eeprom_read(dev, MT_EE_RATE_DELTA_5G); - return val & SKU_DELTA_ADD ? delta : -delta; -} + if (!(val & MT_EE_RATE_DELTA_EN)) + return 0; -static void -mt7915_eeprom_init_sku_band(struct mt7915_dev *dev, - struct ieee80211_supported_band *sband) -{ - int i, band = sband->band; - s8 *rate_power = dev->rate_power[band], max_delta = 0; - u8 idx = 0; - - for (i = 0; i < ARRAY_SIZE(mt7915_sku_groups); i++) { - const struct sku_group *sku = &mt7915_sku_groups[i]; - u32 offset = sku->offset[band]; - int j; - - if (!offset) { - idx += sku->len; - continue; - } - - rate_power[idx++] = mt7915_get_sku_delta(dev, offset); - if (rate_power[idx - 1] > max_delta) - max_delta = rate_power[idx - 1]; - - if (i == SKU_HT_BW20 || i == SKU_VHT_BW20) - offset += 1; - - for (j = 1; j < sku->len; j++) { - u32 addr = offset + sku->delta_map[j]; - - rate_power[idx++] = mt7915_get_sku_delta(dev, addr); - if (rate_power[idx - 1] > max_delta) - max_delta = rate_power[idx - 1]; - } - } + delta = FIELD_GET(MT_EE_RATE_DELTA_MASK, val); - rate_power[idx] = max_delta; + return val & MT_EE_RATE_DELTA_SIGN ? delta : -delta; } -void mt7915_eeprom_init_sku(struct mt7915_dev *dev) -{ - mt7915_eeprom_init_sku_band(dev, &dev->mphy.sband_2g.sband); - mt7915_eeprom_init_sku_band(dev, &dev->mphy.sband_5g.sband); -} +const u8 mt7915_sku_group_len[] = { + [SKU_CCK] = 4, + [SKU_OFDM] = 8, + [SKU_HT_BW20] = 8, + [SKU_HT_BW40] = 9, + [SKU_VHT_BW20] = 12, + [SKU_VHT_BW40] = 12, + [SKU_VHT_BW80] = 12, + [SKU_VHT_BW160] = 12, + [SKU_HE_RU26] = 12, + [SKU_HE_RU52] = 12, + [SKU_HE_RU106] = 12, + [SKU_HE_RU242] = 12, + [SKU_HE_RU484] = 12, + [SKU_HE_RU996] = 12, + [SKU_HE_RU2x996] = 12 +}; |