diff options
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt7996/eeprom.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7996/eeprom.c | 269 |
1 files changed, 208 insertions, 61 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/eeprom.c b/drivers/net/wireless/mediatek/mt76/mt7996/eeprom.c index 544b6c6f1ea3..8f60772913b4 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/eeprom.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/eeprom.c @@ -1,4 +1,4 @@ -// SPDX-License-Identifier: ISC +// SPDX-License-Identifier: BSD-3-Clause-Clear /* * Copyright (C) 2022 MediaTek Inc. */ @@ -13,8 +13,12 @@ static int mt7996_check_eeprom(struct mt7996_dev *dev) u16 val = get_unaligned_le16(eeprom); switch (val) { - case 0x7990: - return 0; + case MT7996_DEVICE_ID: + return is_mt7996(&dev->mt76) ? 0 : -EINVAL; + case MT7992_DEVICE_ID: + return is_mt7992(&dev->mt76) ? 0 : -EINVAL; + case MT7990_DEVICE_ID: + return is_mt7990(&dev->mt76) ? 0 : -EINVAL; default: return -EINVAL; } @@ -22,12 +26,113 @@ static int mt7996_check_eeprom(struct mt7996_dev *dev) static char *mt7996_eeprom_name(struct mt7996_dev *dev) { - /* reserve for future variants */ - return MT7996_EEPROM_DEFAULT; + switch (mt76_chip(&dev->mt76)) { + case MT7992_DEVICE_ID: + switch (dev->var.type) { + case MT7992_VAR_TYPE_23: + if (dev->var.fem == MT7996_FEM_INT) + return MT7992_EEPROM_DEFAULT_23_INT; + return MT7992_EEPROM_DEFAULT_23; + case MT7992_VAR_TYPE_44: + default: + if (dev->var.fem == MT7996_FEM_INT) + return MT7992_EEPROM_DEFAULT_INT; + if (dev->var.fem == MT7996_FEM_MIX) + return MT7992_EEPROM_DEFAULT_MIX; + return MT7992_EEPROM_DEFAULT; + } + case MT7990_DEVICE_ID: + if (dev->var.fem == MT7996_FEM_INT) + return MT7990_EEPROM_DEFAULT_INT; + return MT7990_EEPROM_DEFAULT; + case MT7996_DEVICE_ID: + default: + switch (dev->var.type) { + case MT7996_VAR_TYPE_233: + if (dev->var.fem == MT7996_FEM_INT) + return MT7996_EEPROM_DEFAULT_233_INT; + return MT7996_EEPROM_DEFAULT_233; + case MT7996_VAR_TYPE_444: + default: + if (dev->var.fem == MT7996_FEM_INT) + return MT7996_EEPROM_DEFAULT_INT; + return MT7996_EEPROM_DEFAULT; + } + } +} + +static void +mt7996_eeprom_parse_stream(const u8 *eeprom, u8 band_idx, u8 *path, + u8 *rx_path, u8 *nss) +{ + switch (band_idx) { + case MT_BAND1: + *path = FIELD_GET(MT_EE_WIFI_CONF2_TX_PATH_BAND1, + eeprom[MT_EE_WIFI_CONF + 2]); + *rx_path = FIELD_GET(MT_EE_WIFI_CONF3_RX_PATH_BAND1, + eeprom[MT_EE_WIFI_CONF + 3]); + *nss = FIELD_GET(MT_EE_WIFI_CONF5_STREAM_NUM_BAND1, + eeprom[MT_EE_WIFI_CONF + 5]); + break; + case MT_BAND2: + *path = FIELD_GET(MT_EE_WIFI_CONF2_TX_PATH_BAND2, + eeprom[MT_EE_WIFI_CONF + 2]); + *rx_path = FIELD_GET(MT_EE_WIFI_CONF4_RX_PATH_BAND2, + eeprom[MT_EE_WIFI_CONF + 4]); + *nss = FIELD_GET(MT_EE_WIFI_CONF5_STREAM_NUM_BAND2, + eeprom[MT_EE_WIFI_CONF + 5]); + break; + default: + *path = FIELD_GET(MT_EE_WIFI_CONF1_TX_PATH_BAND0, + eeprom[MT_EE_WIFI_CONF + 1]); + *rx_path = FIELD_GET(MT_EE_WIFI_CONF3_RX_PATH_BAND0, + eeprom[MT_EE_WIFI_CONF + 3]); + *nss = FIELD_GET(MT_EE_WIFI_CONF4_STREAM_NUM_BAND0, + eeprom[MT_EE_WIFI_CONF + 4]); + break; + } +} + +static bool mt7996_eeprom_variant_valid(struct mt7996_dev *dev, const u8 *def) +{ +#define FEM_INT 0 +#define FEM_EXT 3 + u8 *eeprom = dev->mt76.eeprom.data, fem[2]; + int i; + + for (i = 0; i < 2; i++) + fem[i] = u8_get_bits(eeprom[MT_EE_WIFI_CONF + 6 + i], + MT_EE_WIFI_PA_LNA_CONFIG); + + if (dev->var.fem == MT7996_FEM_EXT && + !(fem[0] == FEM_EXT && fem[1] == FEM_EXT)) + return false; + else if (dev->var.fem == MT7996_FEM_INT && + !(fem[0] == FEM_INT && fem[1] == FEM_INT)) + return false; + else if (dev->var.fem == MT7996_FEM_MIX && + !(fem[0] == FEM_INT && fem[1] == FEM_EXT)) + return false; + + for (i = 0; i < __MT_MAX_BAND; i++) { + u8 path, rx_path, nss; + u8 def_path, def_rx_path, def_nss; + + if (!dev->mt76.phys[i]) + continue; + + mt7996_eeprom_parse_stream(eeprom, i, &path, &rx_path, &nss); + mt7996_eeprom_parse_stream(def, i, &def_path, &def_rx_path, + &def_nss); + if (path > def_path || rx_path > def_rx_path || nss > def_nss) + return false; + } + + return true; } static int -mt7996_eeprom_load_default(struct mt7996_dev *dev) +mt7996_eeprom_check_or_use_default(struct mt7996_dev *dev, bool use_default) { u8 *eeprom = dev->mt76.eeprom.data; const struct firmware *fw = NULL; @@ -43,6 +148,10 @@ mt7996_eeprom_load_default(struct mt7996_dev *dev) goto out; } + if (!use_default && mt7996_eeprom_variant_valid(dev, fw->data)) + goto out; + + dev_warn(dev->mt76.dev, "eeprom load fail, use default bin\n"); memcpy(eeprom, fw->data, MT7996_EEPROM_SIZE); dev->flash_mode = true; @@ -54,43 +163,68 @@ out: static int mt7996_eeprom_load(struct mt7996_dev *dev) { + bool use_default = false; int ret; ret = mt76_eeprom_init(&dev->mt76, MT7996_EEPROM_SIZE); if (ret < 0) return ret; - if (ret) { + if (ret && !mt7996_check_eeprom(dev)) { dev->flash_mode = true; - } else { - u8 free_block_num; - u32 block_num, i; + goto out; + } + + if (!dev->flash_mode) { u32 eeprom_blk_size = MT7996_EEPROM_BLOCK_SIZE; + u32 block_num = DIV_ROUND_UP(MT7996_EEPROM_SIZE, eeprom_blk_size); + u8 free_block_num; + int i; + memset(dev->mt76.eeprom.data, 0, MT7996_EEPROM_SIZE); ret = mt7996_mcu_get_eeprom_free_block(dev, &free_block_num); if (ret < 0) return ret; /* efuse info isn't enough */ - if (free_block_num >= 59) - return -EINVAL; - - /* read eeprom data from efuse */ - block_num = DIV_ROUND_UP(MT7996_EEPROM_SIZE, eeprom_blk_size); - for (i = 0; i < block_num; i++) { - ret = mt7996_mcu_get_eeprom(dev, i * eeprom_blk_size); - if (ret < 0) - return ret; + if (free_block_num >= 59) { + use_default = true; + goto out; + } + + /* check if eeprom data from fw is valid */ + if (mt7996_mcu_get_eeprom(dev, 0, NULL, 0) || + mt7996_check_eeprom(dev)) { + use_default = true; + goto out; + } + + /* read eeprom data from fw */ + for (i = 1; i < block_num; i++) { + u32 len = eeprom_blk_size; + + if (i == block_num - 1) + len = MT7996_EEPROM_SIZE % eeprom_blk_size; + ret = mt7996_mcu_get_eeprom(dev, i * eeprom_blk_size, + NULL, len); + if (ret && ret != -EINVAL) { + use_default = true; + goto out; + } } } - return mt7996_check_eeprom(dev); +out: + return mt7996_eeprom_check_or_use_default(dev, use_default); } -static int mt7996_eeprom_parse_efuse_hw_cap(struct mt7996_dev *dev) +static int mt7996_eeprom_parse_efuse_hw_cap(struct mt7996_phy *phy, + u8 *path, u8 *rx_path, u8 *nss) { #define MODE_HE_ONLY BIT(0) #define WTBL_SIZE_GROUP GENMASK(31, 28) +#define STREAM_CAP(_offs) ((cap & (0x7 << (_offs))) >> (_offs)) + struct mt7996_dev *dev = phy->dev; u32 cap = 0; int ret; @@ -99,12 +233,17 @@ static int mt7996_eeprom_parse_efuse_hw_cap(struct mt7996_dev *dev) return ret; if (cap) { + u8 band_offs = phy->mt76->band_idx * 3; + dev->has_eht = !(cap & MODE_HE_ONLY); dev->wtbl_size_group = u32_get_bits(cap, WTBL_SIZE_GROUP); + *nss = min_t(u8, *nss, STREAM_CAP(1 + band_offs)); + *path = min_t(u8, *path, STREAM_CAP(10 + band_offs)); + *rx_path = min_t(u8, *rx_path, STREAM_CAP(19 + band_offs)); } if (dev->wtbl_size_group < 2 || dev->wtbl_size_group > 4) - dev->wtbl_size_group = 2; /* set default */ + dev->wtbl_size_group = is_mt7996(&dev->mt76) ? 4 : 2; return 0; } @@ -148,48 +287,37 @@ static int mt7996_eeprom_parse_band_config(struct mt7996_phy *phy) int mt7996_eeprom_parse_hw_cap(struct mt7996_dev *dev, struct mt7996_phy *phy) { - u8 path, nss, band_idx = phy->mt76->band_idx; + u8 path, rx_path, nss, band_idx = phy->mt76->band_idx; u8 *eeprom = dev->mt76.eeprom.data; struct mt76_phy *mphy = phy->mt76; + int max_path = 5, max_nss = 4; int ret; - switch (band_idx) { - case MT_BAND1: - path = FIELD_GET(MT_EE_WIFI_CONF2_TX_PATH_BAND1, - eeprom[MT_EE_WIFI_CONF + 2]); - nss = FIELD_GET(MT_EE_WIFI_CONF5_STREAM_NUM_BAND1, - eeprom[MT_EE_WIFI_CONF + 5]); - break; - case MT_BAND2: - path = FIELD_GET(MT_EE_WIFI_CONF2_TX_PATH_BAND2, - eeprom[MT_EE_WIFI_CONF + 2]); - nss = FIELD_GET(MT_EE_WIFI_CONF5_STREAM_NUM_BAND2, - eeprom[MT_EE_WIFI_CONF + 5]); - break; - default: - path = FIELD_GET(MT_EE_WIFI_CONF1_TX_PATH_BAND0, - eeprom[MT_EE_WIFI_CONF + 1]); - nss = FIELD_GET(MT_EE_WIFI_CONF4_STREAM_NUM_BAND0, - eeprom[MT_EE_WIFI_CONF + 4]); - break; - } + mt7996_eeprom_parse_stream(eeprom, band_idx, &path, &rx_path, &nss); + ret = mt7996_eeprom_parse_efuse_hw_cap(phy, &path, &rx_path, &nss); + if (ret) + return ret; + + if (!path || path > max_path) + path = max_path; - if (!path || path > 4) - path = 4; + if (!nss || nss > max_nss) + nss = max_nss; - nss = min_t(u8, min_t(u8, 4, nss), path); + nss = min_t(u8, nss, path); + + if (path != rx_path) + phy->has_aux_rx = true; mphy->antenna_mask = BIT(nss) - 1; + phy->orig_antenna_mask = mphy->antenna_mask; mphy->chainmask = (BIT(path) - 1) << dev->chainshift[band_idx]; + phy->orig_chainmask = mphy->chainmask; dev->chainmask |= mphy->chainmask; if (band_idx < MT_BAND2) dev->chainshift[band_idx + 1] = dev->chainshift[band_idx] + hweight16(mphy->chainmask); - ret = mt7996_eeprom_parse_efuse_hw_cap(dev); - if (ret) - return ret; - return mt7996_eeprom_parse_band_config(phy); } @@ -198,24 +326,16 @@ int mt7996_eeprom_init(struct mt7996_dev *dev) int ret; ret = mt7996_eeprom_load(dev); - if (ret < 0) { - if (ret != -EINVAL) - return ret; - - dev_warn(dev->mt76.dev, "eeprom load fail, use default bin\n"); - ret = mt7996_eeprom_load_default(dev); - if (ret) - return ret; - } + if (ret < 0) + return ret; ret = mt7996_eeprom_parse_hw_cap(dev, &dev->phy); if (ret < 0) return ret; memcpy(dev->mphy.macaddr, dev->mt76.eeprom.data + MT_EE_MAC_ADDR, ETH_ALEN); - mt76_eeprom_override(&dev->mphy); - return 0; + return mt76_eeprom_override(&dev->mphy); } int mt7996_eeprom_get_target_power(struct mt7996_dev *dev, @@ -256,3 +376,30 @@ s8 mt7996_eeprom_get_power_delta(struct mt7996_dev *dev, int band) return val & MT_EE_RATE_DELTA_SIGN ? delta : -delta; } + +bool mt7996_eeprom_has_background_radar(struct mt7996_dev *dev) +{ + switch (mt76_chip(&dev->mt76)) { + case MT7996_DEVICE_ID: + if (dev->var.type == MT7996_VAR_TYPE_233) + return false; + break; + case MT7992_DEVICE_ID: + if (dev->var.type == MT7992_VAR_TYPE_23) + return false; + break; + case MT7990_DEVICE_ID: { + u8 path, rx_path, nss, *eeprom = dev->mt76.eeprom.data; + + mt7996_eeprom_parse_stream(eeprom, MT_BAND1, &path, &rx_path, &nss); + /* Disable background radar capability in 3T3R */ + if (path == 3 || rx_path == 3) + return false; + break; + } + default: + return false; + } + + return true; +} |