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         int ret;
  14
  15         mt76x02_mac_start(dev);
  16         ret = mt76x2_phy_start(dev);
  17         if (ret)
  18                 return ret;
  19
  20         ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mt76.mac_work,
  21                                      MT_MAC_WORK_INTERVAL);
  22         ieee80211_queue_delayed_work(mt76_hw(dev), &dev->wdt_work,
  23                                      MT_WATCHDOG_TIME);
  24
  25         set_bit(MT76_STATE_RUNNING, &dev->mt76.state);
  26         return 0;
  27 }
  28
  29 static void
  30 mt76x2_stop(struct ieee80211_hw *hw)
  31 {
  32         struct mt76x02_dev *dev = hw->priv;
  33
  34         clear_bit(MT76_STATE_RUNNING, &dev->mt76.state);
  35         mt76x2_stop_hardware(dev);
  36 }
  37
  38 static int
  39 mt76x2_set_channel(struct mt76x02_dev *dev, struct cfg80211_chan_def *chandef)
  40 {
  41         int ret;
  42
  43         cancel_delayed_work_sync(&dev->cal_work);
  44         tasklet_disable(&dev->mt76.pre_tbtt_tasklet);
  45         tasklet_disable(&dev->dfs_pd.dfs_tasklet);
  46
  47         mutex_lock(&dev->mt76.mutex);
  48         set_bit(MT76_RESET, &dev->mt76.state);
  49
  50         mt76_set_channel(&dev->mt76);
  51
  52         mt76x2_mac_stop(dev, true);
  53         ret = mt76x2_phy_set_channel(dev, chandef);
  54
  55         mt76x02_mac_cc_reset(dev);
  56         mt76x02_dfs_init_params(dev);
  57
  58         mt76x2_mac_resume(dev);
  59
  60         clear_bit(MT76_RESET, &dev->mt76.state);
  61         mutex_unlock(&dev->mt76.mutex);
  62
  63         tasklet_enable(&dev->dfs_pd.dfs_tasklet);
  64         tasklet_enable(&dev->mt76.pre_tbtt_tasklet);
  65
  66         mt76_txq_schedule_all(&dev->mt76);
  67
  68         return ret;
  69 }
  70
  71 static int
  72 mt76x2_config(struct ieee80211_hw *hw, u32 changed)
  73 {
  74         struct mt76x02_dev *dev = hw->priv;
  75         int ret = 0;
  76
  77         mutex_lock(&dev->mt76.mutex);
  78
  79         if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
  80                 if (!(hw->conf.flags & IEEE80211_CONF_MONITOR))
  81                         dev->mt76.rxfilter |= MT_RX_FILTR_CFG_PROMISC;
  82                 else
  83                         dev->mt76.rxfilter &= ~MT_RX_FILTR_CFG_PROMISC;
  84
  85                 mt76_wr(dev, MT_RX_FILTR_CFG, dev->mt76.rxfilter);
  86         }
  87
  88         if (changed & IEEE80211_CONF_CHANGE_POWER) {
  89                 dev->mt76.txpower_conf = hw->conf.power_level * 2;
  90
  91                 /* convert to per-chain power for 2x2 devices */
  92                 dev->mt76.txpower_conf -= 6;
  93
  94                 if (test_bit(MT76_STATE_RUNNING, &dev->mt76.state)) {
  95                         mt76x2_phy_set_txpower(dev);
  96                         mt76x02_tx_set_txpwr_auto(dev, dev->mt76.txpower_conf);
  97                 }
  98         }
  99
 100         mutex_unlock(&dev->mt76.mutex);
 101
 102         if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
 103                 ieee80211_stop_queues(hw);
 104                 ret = mt76x2_set_channel(dev, &hw->conf.chandef);
 105                 ieee80211_wake_queues(hw);
 106         }
 107
 108         return ret;
 109 }
 110
 111 static void
 112 mt76x2_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 113              u32 queues, bool drop)
 114 {
 115 }
 116
 117 static int mt76x2_set_antenna(struct ieee80211_hw *hw, u32 tx_ant,
 118                               u32 rx_ant)
 119 {
 120         struct mt76x02_dev *dev = hw->priv;
 121
 122         if (!tx_ant || tx_ant > 3 || tx_ant != rx_ant)
 123                 return -EINVAL;
 124
 125         mutex_lock(&dev->mt76.mutex);
 126
 127         dev->mt76.chainmask = (tx_ant == 3) ? 0x202 : 0x101;
 128         dev->mt76.antenna_mask = tx_ant;
 129
 130         mt76_set_stream_caps(&dev->mt76, true);
 131         mt76x2_phy_set_antenna(dev);
 132
 133         mutex_unlock(&dev->mt76.mutex);
 134
 135         return 0;
 136 }
 137
 138 const struct ieee80211_ops mt76x2_ops = {
 139         .tx = mt76x02_tx,
 140         .start = mt76x2_start,
 141         .stop = mt76x2_stop,
 142         .add_interface = mt76x02_add_interface,
 143         .remove_interface = mt76x02_remove_interface,
 144         .config = mt76x2_config,
 145         .configure_filter = mt76x02_configure_filter,
 146         .bss_info_changed = mt76x02_bss_info_changed,
 147         .sta_state = mt76_sta_state,
 148         .set_key = mt76x02_set_key,
 149         .conf_tx = mt76x02_conf_tx,
 150         .sw_scan_start = mt76_sw_scan,
 151         .sw_scan_complete = mt76x02_sw_scan_complete,
 152         .flush = mt76x2_flush,
 153         .ampdu_action = mt76x02_ampdu_action,
 154         .get_txpower = mt76_get_txpower,
 155         .wake_tx_queue = mt76_wake_tx_queue,
 156         .sta_rate_tbl_update = mt76x02_sta_rate_tbl_update,
 157         .release_buffered_frames = mt76_release_buffered_frames,
 158         .set_coverage_class = mt76x02_set_coverage_class,
 159         .get_survey = mt76_get_survey,
 160         .set_tim = mt76_set_tim,
 161         .set_antenna = mt76x2_set_antenna,
 162         .get_antenna = mt76_get_antenna,
 163         .set_rts_threshold = mt76x02_set_rts_threshold,
 164 };
 165