1 // SPDX-License-Identifier: ISC 2 /* 3 * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name> 4 * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> 5 */ 6 7 #include "mt76x2.h" 8 #include "eeprom.h" 9 #include "../mt76x02_phy.h" 10 11 int mt76x2_set_sar_specs(struct ieee80211_hw *hw, 12 const struct cfg80211_sar_specs *sar) 13 { 14 int err = -EINVAL, power = hw->conf.power_level * 2; 15 struct mt76x02_dev *dev = hw->priv; 16 struct mt76_phy *mphy = &dev->mphy; 17 18 mutex_lock(&dev->mt76.mutex); 19 if (!cfg80211_chandef_valid(&mphy->chandef)) 20 goto out; 21 22 err = mt76_init_sar_power(hw, sar); 23 if (err) 24 goto out; 25 26 dev->txpower_conf = mt76_get_sar_power(mphy, mphy->chandef.chan, 27 power); 28 /* convert to per-chain power for 2x2 devices */ 29 dev->txpower_conf -= 6; 30 31 if (test_bit(MT76_STATE_RUNNING, &mphy->state)) 32 mt76x2_phy_set_txpower(dev); 33 out: 34 mutex_unlock(&dev->mt76.mutex); 35 36 return err; 37 } 38 EXPORT_SYMBOL_GPL(mt76x2_set_sar_specs); 39 40 static void 41 mt76x2_set_wlan_state(struct mt76x02_dev *dev, bool enable) 42 { 43 u32 val = mt76_rr(dev, MT_WLAN_FUN_CTRL); 44 45 if (enable) 46 val |= (MT_WLAN_FUN_CTRL_WLAN_EN | 47 MT_WLAN_FUN_CTRL_WLAN_CLK_EN); 48 else 49 val &= ~(MT_WLAN_FUN_CTRL_WLAN_EN | 50 MT_WLAN_FUN_CTRL_WLAN_CLK_EN); 51 52 mt76_wr(dev, MT_WLAN_FUN_CTRL, val); 53 udelay(20); 54 } 55 56 void mt76x2_reset_wlan(struct mt76x02_dev *dev, bool enable) 57 { 58 u32 val; 59 60 if (!enable) 61 goto out; 62 63 val = mt76_rr(dev, MT_WLAN_FUN_CTRL); 64 65 val &= ~MT_WLAN_FUN_CTRL_FRC_WL_ANT_SEL; 66 67 if (val & MT_WLAN_FUN_CTRL_WLAN_EN) { 68 val |= MT_WLAN_FUN_CTRL_WLAN_RESET_RF; 69 mt76_wr(dev, MT_WLAN_FUN_CTRL, val); 70 udelay(20); 71 72 val &= ~MT_WLAN_FUN_CTRL_WLAN_RESET_RF; 73 } 74 75 mt76_wr(dev, MT_WLAN_FUN_CTRL, val); 76 udelay(20); 77 78 out: 79 mt76x2_set_wlan_state(dev, enable); 80 } 81 EXPORT_SYMBOL_GPL(mt76x2_reset_wlan); 82 83 void mt76_write_mac_initvals(struct mt76x02_dev *dev) 84 { 85 #define DEFAULT_PROT_CFG_CCK \ 86 (FIELD_PREP(MT_PROT_CFG_RATE, 0x3) | \ 87 FIELD_PREP(MT_PROT_CFG_NAV, 1) | \ 88 FIELD_PREP(MT_PROT_CFG_TXOP_ALLOW, 0x3f) | \ 89 MT_PROT_CFG_RTS_THRESH) 90 91 #define DEFAULT_PROT_CFG_OFDM \ 92 (FIELD_PREP(MT_PROT_CFG_RATE, 0x2004) | \ 93 FIELD_PREP(MT_PROT_CFG_NAV, 1) | \ 94 FIELD_PREP(MT_PROT_CFG_TXOP_ALLOW, 0x3f) | \ 95 MT_PROT_CFG_RTS_THRESH) 96 97 #define DEFAULT_PROT_CFG_20 \ 98 (FIELD_PREP(MT_PROT_CFG_RATE, 0x2004) | \ 99 FIELD_PREP(MT_PROT_CFG_CTRL, 1) | \ 100 FIELD_PREP(MT_PROT_CFG_NAV, 1) | \ 101 FIELD_PREP(MT_PROT_CFG_TXOP_ALLOW, 0x17)) 102 103 #define DEFAULT_PROT_CFG_40 \ 104 (FIELD_PREP(MT_PROT_CFG_RATE, 0x2084) | \ 105 FIELD_PREP(MT_PROT_CFG_CTRL, 1) | \ 106 FIELD_PREP(MT_PROT_CFG_NAV, 1) | \ 107 FIELD_PREP(MT_PROT_CFG_TXOP_ALLOW, 0x3f)) 108 109 static const struct mt76_reg_pair vals[] = { 110 /* Copied from MediaTek reference source */ 111 { MT_PBF_SYS_CTRL, 0x00080c00 }, 112 { MT_PBF_CFG, 0x1efebcff }, 113 { MT_FCE_PSE_CTRL, 0x00000001 }, 114 { MT_MAC_SYS_CTRL, 0x00000000 }, 115 { MT_MAX_LEN_CFG, 0x003e3f00 }, 116 { MT_AMPDU_MAX_LEN_20M1S, 0xaaa99887 }, 117 { MT_AMPDU_MAX_LEN_20M2S, 0x000000aa }, 118 { MT_XIFS_TIME_CFG, 0x33a40d0a }, 119 { MT_BKOFF_SLOT_CFG, 0x00000209 }, 120 { MT_TBTT_SYNC_CFG, 0x00422010 }, 121 { MT_PWR_PIN_CFG, 0x00000000 }, 122 { 0x1238, 0x001700c8 }, 123 { MT_TX_SW_CFG0, 0x00101001 }, 124 { MT_TX_SW_CFG1, 0x00010000 }, 125 { MT_TX_SW_CFG2, 0x00000000 }, 126 { MT_TXOP_CTRL_CFG, 0x0400583f }, 127 { MT_TX_RTS_CFG, 0x00ffff20 }, 128 { MT_TX_TIMEOUT_CFG, 0x000a2290 }, 129 { MT_TX_RETRY_CFG, 0x47f01f0f }, 130 { MT_EXP_ACK_TIME, 0x002c00dc }, 131 { MT_TX_PROT_CFG6, 0xe3f42004 }, 132 { MT_TX_PROT_CFG7, 0xe3f42084 }, 133 { MT_TX_PROT_CFG8, 0xe3f42104 }, 134 { MT_PIFS_TX_CFG, 0x00060fff }, 135 { MT_RX_FILTR_CFG, 0x00015f97 }, 136 { MT_LEGACY_BASIC_RATE, 0x0000017f }, 137 { MT_HT_BASIC_RATE, 0x00004003 }, 138 { MT_PN_PAD_MODE, 0x00000003 }, 139 { MT_TXOP_HLDR_ET, 0x00000002 }, 140 { 0xa44, 0x00000000 }, 141 { MT_HEADER_TRANS_CTRL_REG, 0x00000000 }, 142 { MT_TSO_CTRL, 0x00000000 }, 143 { MT_AUX_CLK_CFG, 0x00000000 }, 144 { MT_DACCLK_EN_DLY_CFG, 0x00000000 }, 145 { MT_TX_ALC_CFG_4, 0x00000000 }, 146 { MT_TX_ALC_VGA3, 0x00000000 }, 147 { MT_TX_PWR_CFG_0, 0x3a3a3a3a }, 148 { MT_TX_PWR_CFG_1, 0x3a3a3a3a }, 149 { MT_TX_PWR_CFG_2, 0x3a3a3a3a }, 150 { MT_TX_PWR_CFG_3, 0x3a3a3a3a }, 151 { MT_TX_PWR_CFG_4, 0x3a3a3a3a }, 152 { MT_TX_PWR_CFG_7, 0x3a3a3a3a }, 153 { MT_TX_PWR_CFG_8, 0x0000003a }, 154 { MT_TX_PWR_CFG_9, 0x0000003a }, 155 { MT_EFUSE_CTRL, 0x0000d000 }, 156 { MT_PAUSE_ENABLE_CONTROL1, 0x0000000a }, 157 { MT_FCE_WLAN_FLOW_CONTROL1, 0x60401c18 }, 158 { MT_WPDMA_DELAY_INT_CFG, 0x94ff0000 }, 159 { MT_TX_SW_CFG3, 0x00000004 }, 160 { MT_HT_FBK_TO_LEGACY, 0x00001818 }, 161 { MT_VHT_HT_FBK_CFG1, 0xedcba980 }, 162 { MT_PROT_AUTO_TX_CFG, 0x00830083 }, 163 { MT_HT_CTRL_CFG, 0x000001ff }, 164 { MT_TX_LINK_CFG, 0x00001020 }, 165 }; 166 struct mt76_reg_pair prot_vals[] = { 167 { MT_CCK_PROT_CFG, DEFAULT_PROT_CFG_CCK }, 168 { MT_OFDM_PROT_CFG, DEFAULT_PROT_CFG_OFDM }, 169 { MT_MM20_PROT_CFG, DEFAULT_PROT_CFG_20 }, 170 { MT_MM40_PROT_CFG, DEFAULT_PROT_CFG_40 }, 171 { MT_GF20_PROT_CFG, DEFAULT_PROT_CFG_20 }, 172 { MT_GF40_PROT_CFG, DEFAULT_PROT_CFG_40 }, 173 }; 174 175 mt76_wr_rp(dev, 0, vals, ARRAY_SIZE(vals)); 176 mt76_wr_rp(dev, 0, prot_vals, ARRAY_SIZE(prot_vals)); 177 } 178 EXPORT_SYMBOL_GPL(mt76_write_mac_initvals); 179 180 void mt76x2_init_txpower(struct mt76x02_dev *dev, 181 struct ieee80211_supported_band *sband) 182 { 183 struct ieee80211_channel *chan; 184 struct mt76x2_tx_power_info txp; 185 struct mt76x02_rate_power t = {}; 186 int i; 187 188 for (i = 0; i < sband->n_channels; i++) { 189 chan = &sband->channels[i]; 190 191 mt76x2_get_power_info(dev, &txp, chan); 192 mt76x2_get_rate_power(dev, &t, chan); 193 194 chan->orig_mpwr = mt76x02_get_max_rate_power(&t) + 195 txp.target_power; 196 chan->orig_mpwr = DIV_ROUND_UP(chan->orig_mpwr, 2); 197 198 /* convert to combined output power on 2x2 devices */ 199 chan->orig_mpwr += 3; 200 chan->max_power = min_t(int, chan->max_reg_power, 201 chan->orig_mpwr); 202 } 203 } 204 EXPORT_SYMBOL_GPL(mt76x2_init_txpower); 205