drivers/net/wireless/mediatek/mt76/mt76x2/pci_main.c

   1 // SPDX-License-Identifier: ISC
   2 /*
   3  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
   4  */
   5
   6 #include "mt76x2.h"
   7 #include "../mt76x02_mac.h"
   8
   9 static int
  10 mt76x2_start(struct ieee80211_hw *hw)
  11 {
  12         struct mt76x02_dev *dev = hw->priv;
  13
  14         mt76x02_mac_start(dev);
  15         mt76x2_phy_start(dev);
  16
  17         ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mphy.mac_work,
  18                                      MT_MAC_WORK_INTERVAL);
  19         ieee80211_queue_delayed_work(mt76_hw(dev), &dev->wdt_work,
  20                                      MT_WATCHDOG_TIME);
  21
  22         set_bit(MT76_STATE_RUNNING, &dev->mphy.state);
  23         return 0;
  24 }
  25
  26 static void
  27 mt76x2_stop(struct ieee80211_hw *hw, bool suspend)
  28 {
  29         struct mt76x02_dev *dev = hw->priv;
  30
  31         clear_bit(MT76_STATE_RUNNING, &dev->mphy.state);
  32         mt76x2_stop_hardware(dev);
  33 }
  34
  35 int mt76x2e_set_channel(struct mt76_phy *phy)
  36 {
  37         struct mt76x02_dev *dev = container_of(phy->dev, struct mt76x02_dev, mt76);
  38
  39         tasklet_disable(&dev->mt76.pre_tbtt_tasklet);
  40         tasklet_disable(&dev->dfs_pd.dfs_tasklet);
  41
  42         mt76x2_mac_stop(dev, true);
  43         mt76x2_phy_set_channel(dev, &phy->chandef);
  44
  45         mt76x02_mac_cc_reset(dev);
  46         mt76x02_dfs_init_params(dev);
  47
  48         mt76x2_mac_resume(dev);
  49
  50         tasklet_enable(&dev->dfs_pd.dfs_tasklet);
  51         tasklet_enable(&dev->mt76.pre_tbtt_tasklet);
  52
  53         return 0;
  54 }
  55
  56 static int
  57 mt76x2_config(struct ieee80211_hw *hw, u32 changed)
  58 {
  59         struct mt76x02_dev *dev = hw->priv;
  60
  61         mutex_lock(&dev->mt76.mutex);
  62
  63         if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
  64                 if (!(hw->conf.flags & IEEE80211_CONF_MONITOR))
  65                         dev->mt76.rxfilter |= MT_RX_FILTR_CFG_PROMISC;
  66                 else
  67                         dev->mt76.rxfilter &= ~MT_RX_FILTR_CFG_PROMISC;
  68
  69                 mt76_wr(dev, MT_RX_FILTR_CFG, dev->mt76.rxfilter);
  70         }
  71
  72         if (changed & IEEE80211_CONF_CHANGE_POWER) {
  73                 struct mt76_phy *mphy = &dev->mphy;
  74
  75                 dev->txpower_conf = hw->conf.power_level * 2;
  76                 dev->txpower_conf = mt76_get_sar_power(mphy,
  77                                                        mphy->chandef.chan,
  78                                                        dev->txpower_conf);
  79                 /* convert to per-chain power for 2x2 devices */
  80                 dev->txpower_conf -= 6;
  81
  82                 if (test_bit(MT76_STATE_RUNNING, &dev->mphy.state)) {
  83                         mt76x2_phy_set_txpower(dev);
  84                         mt76x02_tx_set_txpwr_auto(dev, dev->txpower_conf);
  85                 }
  86         }
  87
  88         mutex_unlock(&dev->mt76.mutex);
  89
  90         if (changed & IEEE80211_CONF_CHANGE_CHANNEL)
  91                 mt76_update_channel(&dev->mphy);
  92
  93         return 0;
  94 }
  95
  96 static void
  97 mt76x2_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
  98              u32 queues, bool drop)
  99 {
 100 }
 101
 102 static int mt76x2_set_antenna(struct ieee80211_hw *hw, u32 tx_ant,
 103                               u32 rx_ant)
 104 {
 105         struct mt76x02_dev *dev = hw->priv;
 106
 107         if (!tx_ant || tx_ant > 3 || tx_ant != rx_ant)
 108                 return -EINVAL;
 109
 110         mutex_lock(&dev->mt76.mutex);
 111
 112         dev->mphy.chainmask = (tx_ant == 3) ? 0x202 : 0x101;
 113         dev->mphy.antenna_mask = tx_ant;
 114
 115         mt76_set_stream_caps(&dev->mphy, true);
 116         mt76x2_phy_set_antenna(dev);
 117
 118         mutex_unlock(&dev->mt76.mutex);
 119
 120         return 0;
 121 }
 122
 123 const struct ieee80211_ops mt76x2_ops = {
 124         .add_chanctx = ieee80211_emulate_add_chanctx,
 125         .remove_chanctx = ieee80211_emulate_remove_chanctx,
 126         .change_chanctx = ieee80211_emulate_change_chanctx,
 127         .switch_vif_chanctx = ieee80211_emulate_switch_vif_chanctx,
 128         .tx = mt76x02_tx,
 129         .start = mt76x2_start,
 130         .stop = mt76x2_stop,
 131         .add_interface = mt76x02_add_interface,
 132         .remove_interface = mt76x02_remove_interface,
 133         .config = mt76x2_config,
 134         .configure_filter = mt76x02_configure_filter,
 135         .bss_info_changed = mt76x02_bss_info_changed,
 136         .sta_state = mt76_sta_state,
 137         .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove,
 138         .set_key = mt76x02_set_key,
 139         .conf_tx = mt76x02_conf_tx,
 140         .sw_scan_start = mt76_sw_scan,
 141         .sw_scan_complete = mt76x02_sw_scan_complete,
 142         .flush = mt76x2_flush,
 143         .ampdu_action = mt76x02_ampdu_action,
 144         .get_txpower = mt76_get_txpower,
 145         .wake_tx_queue = mt76_wake_tx_queue,
 146         .sta_rate_tbl_update = mt76x02_sta_rate_tbl_update,
 147         .release_buffered_frames = mt76_release_buffered_frames,
 148         .set_coverage_class = mt76x02_set_coverage_class,
 149         .get_survey = mt76_get_survey,
 150         .set_tim = mt76_set_tim,
 151         .set_antenna = mt76x2_set_antenna,
 152         .get_antenna = mt76_get_antenna,
 153         .set_rts_threshold = mt76x02_set_rts_threshold,
 154         .reconfig_complete = mt76x02_reconfig_complete,
 155         .set_sar_specs = mt76x2_set_sar_specs,
 156 };
 157