diff options
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c | 83 |
1 files changed, 67 insertions, 16 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c b/drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c index 3bb2643d1b26..c0f3402d30bb 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c @@ -2,35 +2,46 @@ /* Copyright (C) 2020 MediaTek Inc. */ #include <linux/firmware.h> +#include <linux/moduleparam.h> #include "mt7915.h" #include "eeprom.h" +static bool enable_6ghz; +module_param(enable_6ghz, bool, 0644); +MODULE_PARM_DESC(enable_6ghz, "Enable 6 GHz instead of 5 GHz on hardware that supports both"); + static int mt7915_eeprom_load_precal(struct mt7915_dev *dev) { struct mt76_dev *mdev = &dev->mt76; u8 *eeprom = mdev->eeprom.data; - u32 val = eeprom[MT_EE_DO_PRE_CAL]; - u32 offs; + u32 offs = is_mt7915(&dev->mt76) ? MT_EE_DO_PRE_CAL : MT_EE_DO_PRE_CAL_V2; + u32 size, val = eeprom[offs]; int ret; - if (!dev->flash_mode) + if (!dev->flash_mode || !val) return 0; - if (val != (MT_EE_WIFI_CAL_DPD | MT_EE_WIFI_CAL_GROUP)) - return 0; + size = mt7915_get_cal_group_size(dev) + mt7915_get_cal_dpd_size(dev); - val = MT_EE_CAL_GROUP_SIZE + MT_EE_CAL_DPD_SIZE; - dev->cal = devm_kzalloc(mdev->dev, val, GFP_KERNEL); + dev->cal = devm_kzalloc(mdev->dev, size, GFP_KERNEL); if (!dev->cal) return -ENOMEM; offs = is_mt7915(&dev->mt76) ? MT_EE_PRECAL : MT_EE_PRECAL_V2; - ret = mt76_get_of_data_from_mtd(mdev, dev->cal, offs, val); + ret = mt76_get_of_data_from_mtd(mdev, dev->cal, offs, size); if (!ret) return ret; - return mt76_get_of_data_from_nvmem(mdev, dev->cal, "precal", val); + ret = mt76_get_of_data_from_nvmem(mdev, dev->cal, "precal", size); + if (!ret) + return ret; + + dev_warn(mdev->dev, "missing precal data, size=%d\n", size); + devm_kfree(mdev->dev, dev->cal); + dev->cal = NULL; + + return ret; } static int mt7915_check_eeprom(struct mt7915_dev *dev) @@ -136,7 +147,7 @@ static int mt7915_eeprom_load(struct mt7915_dev *dev) /* read eeprom data from efuse */ block_num = DIV_ROUND_UP(eeprom_size, eeprom_blk_size); for (i = 0; i < block_num; i++) { - ret = mt7915_mcu_get_eeprom(dev, i * eeprom_blk_size); + ret = mt7915_mcu_get_eeprom(dev, i * eeprom_blk_size, NULL); if (ret < 0) return ret; } @@ -164,8 +175,20 @@ static void mt7915_eeprom_parse_band_config(struct mt7915_phy *phy) phy->mt76->cap.has_6ghz = true; return; case MT_EE_V2_BAND_SEL_5GHZ_6GHZ: - phy->mt76->cap.has_5ghz = true; - phy->mt76->cap.has_6ghz = true; + if (enable_6ghz) { + phy->mt76->cap.has_6ghz = true; + u8p_replace_bits(&eeprom[MT_EE_WIFI_CONF + band], + MT_EE_V2_BAND_SEL_6GHZ, + MT_EE_WIFI_CONF0_BAND_SEL); + } else { + phy->mt76->cap.has_5ghz = true; + u8p_replace_bits(&eeprom[MT_EE_WIFI_CONF + band], + MT_EE_V2_BAND_SEL_5GHZ, + MT_EE_WIFI_CONF0_BAND_SEL); + } + /* force to buffer mode */ + dev->flash_mode = true; + return; default: phy->mt76->cap.has_2ghz = true; @@ -256,10 +279,7 @@ int mt7915_eeprom_init(struct mt7915_dev *dev) return ret; } - ret = mt7915_eeprom_load_precal(dev); - if (ret) - return ret; - + mt7915_eeprom_load_precal(dev); mt7915_eeprom_parse_hw_cap(dev, &dev->phy); memcpy(dev->mphy.macaddr, dev->mt76.eeprom.data + MT_EE_MAC_ADDR, ETH_ALEN); @@ -341,6 +361,37 @@ s8 mt7915_eeprom_get_power_delta(struct mt7915_dev *dev, int band) return val & MT_EE_RATE_DELTA_SIGN ? delta : -delta; } +bool +mt7915_eeprom_has_background_radar(struct mt7915_dev *dev) +{ + u8 val, buf[MT7915_EEPROM_BLOCK_SIZE]; + u8 band_sel, tx_path, rx_path; + int offs = MT_EE_WIFI_CONF + 1; + + switch (mt76_chip(&dev->mt76)) { + case 0x7915: + return true; + case 0x7906: + /* read efuse to check background radar capability */ + if (mt7915_mcu_get_eeprom(dev, offs, buf)) + break; + + val = buf[offs % MT7915_EEPROM_BLOCK_SIZE]; + band_sel = u8_get_bits(val, MT_EE_WIFI_CONF0_BAND_SEL); + tx_path = u8_get_bits(val, MT_EE_WIFI_CONF0_TX_PATH); + rx_path = u8_get_bits(val, MT_EE_WIFI_CONF0_RX_PATH); + + return (band_sel == MT_EE_V2_BAND_SEL_5GHZ && + tx_path == rx_path && rx_path == 2); + case 0x7981: + case 0x7986: + default: + break; + } + + return false; +} + const u8 mt7915_sku_group_len[] = { [SKU_CCK] = 4, [SKU_OFDM] = 8, |