diff options
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt7615/init.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7615/init.c | 324 |
1 files changed, 324 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/init.c b/drivers/net/wireless/mediatek/mt76/mt7615/init.c new file mode 100644 index 0000000..3eb8ee5 --- /dev/null +++ b/drivers/net/wireless/mediatek/mt76/mt7615/init.c @@ -0,0 +1,324 @@ +// SPDX-License-Identifier: ISC +/* Copyright (C) 2019 MediaTek Inc. + * + * Author: Roy Luo <royluo@google.com> + * Ryder Lee <ryder.lee@mediatek.com> + * Felix Fietkau <nbd@nbd.name> + */ + +#include <linux/etherdevice.h> +#include "mt7615.h" +#include "mac.h" +#include "eeprom.h" + +static void mt7615_phy_init(struct mt7615_dev *dev) +{ + /* disable band 0 rf low power beacon mode */ + mt76_rmw(dev, MT_WF_PHY_WF2_RFCTRL0, MT_WF_PHY_WF2_RFCTRL0_LPBCN_EN, + MT_WF_PHY_WF2_RFCTRL0_LPBCN_EN); +} + +static void mt7615_mac_init(struct mt7615_dev *dev) +{ + u32 val; + + /* enable band 0/1 clk */ + mt76_set(dev, MT_CFG_CCR, + MT_CFG_CCR_MAC_D0_1X_GC_EN | MT_CFG_CCR_MAC_D0_2X_GC_EN | + MT_CFG_CCR_MAC_D1_1X_GC_EN | MT_CFG_CCR_MAC_D1_2X_GC_EN); + + val = mt76_rmw(dev, MT_TMAC_TRCR0, + MT_TMAC_TRCR_CCA_SEL | MT_TMAC_TRCR_SEC_CCA_SEL, + FIELD_PREP(MT_TMAC_TRCR_CCA_SEL, 2) | + FIELD_PREP(MT_TMAC_TRCR_SEC_CCA_SEL, 0)); + mt76_wr(dev, MT_TMAC_TRCR1, val); + + val = MT_AGG_ACR_PKT_TIME_EN | MT_AGG_ACR_NO_BA_AR_RULE | + FIELD_PREP(MT_AGG_ACR_CFEND_RATE, 0x49) | /* 24M */ + FIELD_PREP(MT_AGG_ACR_BAR_RATE, 0x4b); /* 6M */ + mt76_wr(dev, MT_AGG_ACR0, val); + mt76_wr(dev, MT_AGG_ACR1, val); + + mt76_rmw_field(dev, MT_TMAC_CTCR0, + MT_TMAC_CTCR0_INS_DDLMT_REFTIME, 0x3f); + mt76_rmw_field(dev, MT_TMAC_CTCR0, + MT_TMAC_CTCR0_INS_DDLMT_DENSITY, 0x3); + mt76_rmw(dev, MT_TMAC_CTCR0, + MT_TMAC_CTCR0_INS_DDLMT_VHT_SMPDU_EN | + MT_TMAC_CTCR0_INS_DDLMT_EN, + MT_TMAC_CTCR0_INS_DDLMT_VHT_SMPDU_EN | + MT_TMAC_CTCR0_INS_DDLMT_EN); + + mt7615_mcu_set_rts_thresh(dev, 0x92b); + mt7615_mac_set_scs(dev, false); + + mt76_rmw(dev, MT_AGG_SCR, MT_AGG_SCR_NLNAV_MID_PTEC_DIS, + MT_AGG_SCR_NLNAV_MID_PTEC_DIS); + + mt7615_mcu_init_mac(dev); + + mt76_wr(dev, MT_DMA_DCR0, MT_DMA_DCR0_RX_VEC_DROP | + FIELD_PREP(MT_DMA_DCR0_MAX_RX_LEN, 3072)); + + mt76_wr(dev, MT_AGG_ARUCR, + FIELD_PREP(MT_AGG_ARxCR_LIMIT(0), 7) | + FIELD_PREP(MT_AGG_ARxCR_LIMIT(1), 2) | + FIELD_PREP(MT_AGG_ARxCR_LIMIT(2), 2) | + FIELD_PREP(MT_AGG_ARxCR_LIMIT(3), 2) | + FIELD_PREP(MT_AGG_ARxCR_LIMIT(4), 1) | + FIELD_PREP(MT_AGG_ARxCR_LIMIT(5), 1) | + FIELD_PREP(MT_AGG_ARxCR_LIMIT(6), 1) | + FIELD_PREP(MT_AGG_ARxCR_LIMIT(7), 1)); + + mt76_wr(dev, MT_AGG_ARDCR, + FIELD_PREP(MT_AGG_ARxCR_LIMIT(0), MT7615_RATE_RETRY - 1) | + FIELD_PREP(MT_AGG_ARxCR_LIMIT(1), MT7615_RATE_RETRY - 1) | + FIELD_PREP(MT_AGG_ARxCR_LIMIT(2), MT7615_RATE_RETRY - 1) | + FIELD_PREP(MT_AGG_ARxCR_LIMIT(3), MT7615_RATE_RETRY - 1) | + FIELD_PREP(MT_AGG_ARxCR_LIMIT(4), MT7615_RATE_RETRY - 1) | + FIELD_PREP(MT_AGG_ARxCR_LIMIT(5), MT7615_RATE_RETRY - 1) | + FIELD_PREP(MT_AGG_ARxCR_LIMIT(6), MT7615_RATE_RETRY - 1) | + FIELD_PREP(MT_AGG_ARxCR_LIMIT(7), MT7615_RATE_RETRY - 1)); + + mt76_wr(dev, MT_AGG_ARCR, + (FIELD_PREP(MT_AGG_ARCR_RTS_RATE_THR, 2) | + MT_AGG_ARCR_RATE_DOWN_RATIO_EN | + FIELD_PREP(MT_AGG_ARCR_RATE_DOWN_RATIO, 1) | + FIELD_PREP(MT_AGG_ARCR_RATE_UP_EXTRA_TH, 4))); +} + +static int mt7615_init_hardware(struct mt7615_dev *dev) +{ + int ret, idx; + + mt76_wr(dev, MT_INT_SOURCE_CSR, ~0); + + spin_lock_init(&dev->token_lock); + idr_init(&dev->token); + + ret = mt7615_eeprom_init(dev); + if (ret < 0) + return ret; + + ret = mt7615_dma_init(dev); + if (ret) + return ret; + + set_bit(MT76_STATE_INITIALIZED, &dev->mt76.state); + + ret = mt7615_mcu_init(dev); + if (ret) + return ret; + + mt7615_mcu_set_eeprom(dev); + mt7615_mac_init(dev); + mt7615_phy_init(dev); + mt7615_mcu_ctrl_pm_state(dev, 0); + mt7615_mcu_del_wtbl_all(dev); + + /* Beacon and mgmt frames should occupy wcid 0 */ + idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7615_WTBL_STA - 1); + if (idx) + return -ENOSPC; + + dev->mt76.global_wcid.idx = idx; + dev->mt76.global_wcid.hw_key_idx = -1; + rcu_assign_pointer(dev->mt76.wcid[idx], &dev->mt76.global_wcid); + + return 0; +} + +#define CCK_RATE(_idx, _rate) { \ + .bitrate = _rate, \ + .flags = IEEE80211_RATE_SHORT_PREAMBLE, \ + .hw_value = (MT_PHY_TYPE_CCK << 8) | (_idx), \ + .hw_value_short = (MT_PHY_TYPE_CCK << 8) | (4 + (_idx)), \ +} + +#define OFDM_RATE(_idx, _rate) { \ + .bitrate = _rate, \ + .hw_value = (MT_PHY_TYPE_OFDM << 8) | (_idx), \ + .hw_value_short = (MT_PHY_TYPE_OFDM << 8) | (_idx), \ +} + +static struct ieee80211_rate mt7615_rates[] = { + CCK_RATE(0, 10), + CCK_RATE(1, 20), + CCK_RATE(2, 55), + CCK_RATE(3, 110), + OFDM_RATE(11, 60), + OFDM_RATE(15, 90), + OFDM_RATE(10, 120), + OFDM_RATE(14, 180), + OFDM_RATE(9, 240), + OFDM_RATE(13, 360), + OFDM_RATE(8, 480), + OFDM_RATE(12, 540), +}; + +static const struct ieee80211_iface_limit if_limits[] = { + { + .max = MT7615_MAX_INTERFACES, + .types = BIT(NL80211_IFTYPE_AP) | +#ifdef CPTCFG_MAC80211_MESH + BIT(NL80211_IFTYPE_MESH_POINT) | +#endif + BIT(NL80211_IFTYPE_STATION) + } +}; + +static const struct ieee80211_iface_combination if_comb[] = { + { + .limits = if_limits, + .n_limits = ARRAY_SIZE(if_limits), + .max_interfaces = 4, + .num_different_channels = 1, + .beacon_int_infra_match = true, + } +}; + +static void +mt7615_init_txpower(struct mt7615_dev *dev, + struct ieee80211_supported_band *sband) +{ + int i, n_chains = hweight8(dev->mt76.antenna_mask), target_chains; + u8 *eep = (u8 *)dev->mt76.eeprom.data; + enum nl80211_band band = sband->band; + + target_chains = mt7615_ext_pa_enabled(dev, band) ? 1 : n_chains; + for (i = 0; i < sband->n_channels; i++) { + struct ieee80211_channel *chan = &sband->channels[i]; + u8 target_power = 0; + int j; + + for (j = 0; j < target_chains; j++) { + int index; + + index = mt7615_eeprom_get_power_index(dev, chan, j); + target_power = max(target_power, eep[index]); + } + + target_power = DIV_ROUND_UP(target_power, 2); + switch (n_chains) { + case 4: + target_power += 6; + break; + case 3: + target_power += 4; + break; + case 2: + target_power += 3; + break; + default: + break; + } + + chan->max_power = min_t(int, chan->max_reg_power, + target_power); + chan->orig_mpwr = target_power; + } +} + +static void +mt7615_regd_notifier(struct wiphy *wiphy, + struct regulatory_request *request) +{ + struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); + struct mt7615_dev *dev = hw->priv; + struct cfg80211_chan_def *chandef = &dev->mt76.chandef; + + if (request->dfs_region == dev->mt76.region) + return; + + dev->mt76.region = request->dfs_region; + + if (!(chandef->chan->flags & IEEE80211_CHAN_RADAR)) + return; + + mt7615_dfs_stop_radar_detector(dev); + if (request->dfs_region == NL80211_DFS_UNSET) + mt7615_mcu_rdd_cmd(dev, RDD_CAC_END, MT_HW_RDD0, + MT_RX_SEL0, 0); + else + mt7615_dfs_start_radar_detector(dev); +} + +int mt7615_register_device(struct mt7615_dev *dev) +{ + struct ieee80211_hw *hw = mt76_hw(dev); + struct wiphy *wiphy = hw->wiphy; + int ret; + + ret = mt7615_init_hardware(dev); + if (ret) + return ret; + + INIT_DELAYED_WORK(&dev->mt76.mac_work, mt7615_mac_work); + + hw->queues = 4; + hw->max_rates = 3; + hw->max_report_rates = 7; + hw->max_rate_tries = 11; + + hw->sta_data_size = sizeof(struct mt7615_sta); + hw->vif_data_size = sizeof(struct mt7615_vif); + + wiphy->iface_combinations = if_comb; + wiphy->n_iface_combinations = ARRAY_SIZE(if_comb); + wiphy->reg_notifier = mt7615_regd_notifier; + wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; + + ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); + ieee80211_hw_set(hw, TX_STATUS_NO_AMPDU_LEN); + + dev->mt76.sband_2g.sband.ht_cap.cap |= IEEE80211_HT_CAP_LDPC_CODING; + dev->mt76.sband_5g.sband.ht_cap.cap |= IEEE80211_HT_CAP_LDPC_CODING; + dev->mt76.sband_5g.sband.vht_cap.cap |= + IEEE80211_VHT_CAP_SHORT_GI_160 | + IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 | + IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK | + IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ; + dev->mt76.chainmask = 0x404; + dev->mt76.antenna_mask = 0xf; + dev->dfs_state = -1; + + wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | +#ifdef CPTCFG_MAC80211_MESH + BIT(NL80211_IFTYPE_MESH_POINT) | +#endif + BIT(NL80211_IFTYPE_AP); + + ret = mt76_register_device(&dev->mt76, true, mt7615_rates, + ARRAY_SIZE(mt7615_rates)); + if (ret) + return ret; + + mt7615_init_txpower(dev, &dev->mt76.sband_2g.sband); + mt7615_init_txpower(dev, &dev->mt76.sband_5g.sband); + + hw->max_tx_fragments = MT_TXP_MAX_BUF_NUM; + + return mt7615_init_debugfs(dev); +} + +void mt7615_unregister_device(struct mt7615_dev *dev) +{ + struct mt76_txwi_cache *txwi; + int id; + + mt76_unregister_device(&dev->mt76); + mt7615_mcu_exit(dev); + mt7615_dma_cleanup(dev); + + spin_lock_bh(&dev->token_lock); + idr_for_each_entry(&dev->token, txwi, id) { + mt7615_txp_skb_unmap(&dev->mt76, txwi); + if (txwi->skb) + dev_kfree_skb_any(txwi->skb); + mt76_put_txwi(&dev->mt76, txwi); + } + spin_unlock_bh(&dev->token_lock); + idr_destroy(&dev->token); + + mt76_free_device(&dev->mt76); +} |