1 files changed, 310 insertions, 0 deletions

diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/pci_main.c b/drivers/net/wireless/mediatek/mt76/mt76x2/pci_main.c
new file mode 100644
index 000000000000..65fef082e7cc
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt76x2/pci_main.c
@@ -0,0 +1,310 @@
+/*
+ * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "mt76x2.h"
+
+static int
+mt76x2_start(struct ieee80211_hw *hw)
+{
+	struct mt76x02_dev *dev = hw->priv;
+	int ret;
+
+	mutex_lock(&dev->mt76.mutex);
+
+	ret = mt76x2_mac_start(dev);
+	if (ret)
+		goto out;
+
+	ret = mt76x2_phy_start(dev);
+	if (ret)
+		goto out;
+
+	ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mac_work,
+				     MT_CALIBRATE_INTERVAL);
+
+	set_bit(MT76_STATE_RUNNING, &dev->mt76.state);
+
+out:
+	mutex_unlock(&dev->mt76.mutex);
+	return ret;
+}
+
+static void
+mt76x2_stop(struct ieee80211_hw *hw)
+{
+	struct mt76x02_dev *dev = hw->priv;
+
+	mutex_lock(&dev->mt76.mutex);
+	clear_bit(MT76_STATE_RUNNING, &dev->mt76.state);
+	mt76x2_stop_hardware(dev);
+	mutex_unlock(&dev->mt76.mutex);
+}
+
+static int
+mt76x2_set_channel(struct mt76x02_dev *dev, struct cfg80211_chan_def *chandef)
+{
+	int ret;
+
+	cancel_delayed_work_sync(&dev->cal_work);
+
+	set_bit(MT76_RESET, &dev->mt76.state);
+
+	mt76_set_channel(&dev->mt76);
+
+	tasklet_disable(&dev->pre_tbtt_tasklet);
+	tasklet_disable(&dev->dfs_pd.dfs_tasklet);
+
+	mt76x2_mac_stop(dev, true);
+	ret = mt76x2_phy_set_channel(dev, chandef);
+
+	/* channel cycle counters read-and-clear */
+	mt76_rr(dev, MT_CH_IDLE);
+	mt76_rr(dev, MT_CH_BUSY);
+
+	mt76x2_dfs_init_params(dev);
+
+	mt76x2_mac_resume(dev);
+	tasklet_enable(&dev->dfs_pd.dfs_tasklet);
+	tasklet_enable(&dev->pre_tbtt_tasklet);
+
+	clear_bit(MT76_RESET, &dev->mt76.state);
+
+	mt76_txq_schedule_all(&dev->mt76);
+
+	return ret;
+}
+
+static int
+mt76x2_config(struct ieee80211_hw *hw, u32 changed)
+{
+	struct mt76x02_dev *dev = hw->priv;
+	int ret = 0;
+
+	mutex_lock(&dev->mt76.mutex);
+
+	if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
+		if (!(hw->conf.flags & IEEE80211_CONF_MONITOR))
+			dev->mt76.rxfilter |= MT_RX_FILTR_CFG_PROMISC;
+		else
+			dev->mt76.rxfilter &= ~MT_RX_FILTR_CFG_PROMISC;
+
+		mt76_wr(dev, MT_RX_FILTR_CFG, dev->mt76.rxfilter);
+	}
+
+	if (changed & IEEE80211_CONF_CHANGE_POWER) {
+		dev->mt76.txpower_conf = hw->conf.power_level * 2;
+
+		/* convert to per-chain power for 2x2 devices */
+		dev->mt76.txpower_conf -= 6;
+
+		if (test_bit(MT76_STATE_RUNNING, &dev->mt76.state)) {
+			mt76x2_phy_set_txpower(dev);
+			mt76x02_tx_set_txpwr_auto(dev, dev->mt76.txpower_conf);
+		}
+	}
+
+	if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
+		ieee80211_stop_queues(hw);
+		ret = mt76x2_set_channel(dev, &hw->conf.chandef);
+		ieee80211_wake_queues(hw);
+	}
+
+	mutex_unlock(&dev->mt76.mutex);
+
+	return ret;
+}
+
+static void
+mt76x2_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+			struct ieee80211_bss_conf *info, u32 changed)
+{
+	struct mt76x02_dev *dev = hw->priv;
+	struct mt76x02_vif *mvif = (struct mt76x02_vif *) vif->drv_priv;
+
+	mutex_lock(&dev->mt76.mutex);
+
+	if (changed & BSS_CHANGED_BSSID)
+		mt76x2_mac_set_bssid(dev, mvif->idx, info->bssid);
+
+	if (changed & BSS_CHANGED_BEACON_INT) {
+		mt76_rmw_field(dev, MT_BEACON_TIME_CFG,
+			       MT_BEACON_TIME_CFG_INTVAL,
+			       info->beacon_int << 4);
+		dev->beacon_int = info->beacon_int;
+		dev->tbtt_count = 0;
+	}
+
+	if (changed & BSS_CHANGED_BEACON_ENABLED) {
+		tasklet_disable(&dev->pre_tbtt_tasklet);
+		mt76x2_mac_set_beacon_enable(dev, mvif->idx,
+					     info->enable_beacon);
+		tasklet_enable(&dev->pre_tbtt_tasklet);
+	}
+
+	if (changed & BSS_CHANGED_ERP_SLOT) {
+		int slottime = info->use_short_slot ? 9 : 20;
+
+		dev->slottime = slottime;
+		mt76x2_set_tx_ackto(dev);
+	}
+
+	mutex_unlock(&dev->mt76.mutex);
+}
+
+void
+mt76x2_sta_ps(struct mt76_dev *mdev, struct ieee80211_sta *sta, bool ps)
+{
+	struct mt76x02_sta *msta = (struct mt76x02_sta *) sta->drv_priv;
+	struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76);
+	int idx = msta->wcid.idx;
+
+	mt76_stop_tx_queues(&dev->mt76, sta, true);
+	mt76x02_mac_wcid_set_drop(&dev->mt76, idx, ps);
+}
+
+static void
+mt76x2_sw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+	       const u8 *mac)
+{
+	struct mt76x02_dev *dev = hw->priv;
+
+	tasklet_disable(&dev->pre_tbtt_tasklet);
+	set_bit(MT76_SCANNING, &dev->mt76.state);
+}
+
+static void
+mt76x2_sw_scan_complete(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+{
+	struct mt76x02_dev *dev = hw->priv;
+
+	clear_bit(MT76_SCANNING, &dev->mt76.state);
+	tasklet_enable(&dev->pre_tbtt_tasklet);
+}
+
+static void
+mt76x2_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+	     u32 queues, bool drop)
+{
+}
+
+static int
+mt76x2_get_txpower(struct ieee80211_hw *hw, struct ieee80211_vif *vif, int *dbm)
+{
+	struct mt76x02_dev *dev = hw->priv;
+
+	*dbm = dev->mt76.txpower_cur / 2;
+
+	/* convert from per-chain power to combined output on 2x2 devices */
+	*dbm += 3;
+
+	return 0;
+}
+
+static void mt76x2_set_coverage_class(struct ieee80211_hw *hw,
+				      s16 coverage_class)
+{
+	struct mt76x02_dev *dev = hw->priv;
+
+	mutex_lock(&dev->mt76.mutex);
+	dev->coverage_class = coverage_class;
+	mt76x2_set_tx_ackto(dev);
+	mutex_unlock(&dev->mt76.mutex);
+}
+
+static int
+mt76x2_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, bool set)
+{
+	return 0;
+}
+
+static int mt76x2_set_antenna(struct ieee80211_hw *hw, u32 tx_ant,
+			      u32 rx_ant)
+{
+	struct mt76x02_dev *dev = hw->priv;
+
+	if (!tx_ant || tx_ant > 3 || tx_ant != rx_ant)
+		return -EINVAL;
+
+	mutex_lock(&dev->mt76.mutex);
+
+	dev->mt76.chainmask = (tx_ant == 3) ? 0x202 : 0x101;
+	dev->mt76.antenna_mask = tx_ant;
+
+	mt76_set_stream_caps(&dev->mt76, true);
+	mt76x2_phy_set_antenna(dev);
+
+	mutex_unlock(&dev->mt76.mutex);
+
+	return 0;
+}
+
+static int mt76x2_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant,
+			      u32 *rx_ant)
+{
+	struct mt76x02_dev *dev = hw->priv;
+
+	mutex_lock(&dev->mt76.mutex);
+	*tx_ant = dev->mt76.antenna_mask;
+	*rx_ant = dev->mt76.antenna_mask;
+	mutex_unlock(&dev->mt76.mutex);
+
+	return 0;
+}
+
+static int
+mt76x2_set_rts_threshold(struct ieee80211_hw *hw, u32 val)
+{
+	struct mt76x02_dev *dev = hw->priv;
+
+	if (val != ~0 && val > 0xffff)
+		return -EINVAL;
+
+	mutex_lock(&dev->mutex);
+	mt76x2_mac_set_tx_protection(dev, val);
+	mutex_unlock(&dev->mutex);
+
+	return 0;
+}
+
+const struct ieee80211_ops mt76x2_ops = {
+	.tx = mt76x02_tx,
+	.start = mt76x2_start,
+	.stop = mt76x2_stop,
+	.add_interface = mt76x02_add_interface,
+	.remove_interface = mt76x02_remove_interface,
+	.config = mt76x2_config,
+	.configure_filter = mt76x02_configure_filter,
+	.bss_info_changed = mt76x2_bss_info_changed,
+	.sta_add = mt76x02_sta_add,
+	.sta_remove = mt76x02_sta_remove,
+	.set_key = mt76x02_set_key,
+	.conf_tx = mt76x02_conf_tx,
+	.sw_scan_start = mt76x2_sw_scan,
+	.sw_scan_complete = mt76x2_sw_scan_complete,
+	.flush = mt76x2_flush,
+	.ampdu_action = mt76x02_ampdu_action,
+	.get_txpower = mt76x2_get_txpower,
+	.wake_tx_queue = mt76_wake_tx_queue,
+	.sta_rate_tbl_update = mt76x02_sta_rate_tbl_update,
+	.release_buffered_frames = mt76_release_buffered_frames,
+	.set_coverage_class = mt76x2_set_coverage_class,
+	.get_survey = mt76_get_survey,
+	.set_tim = mt76x2_set_tim,
+	.set_antenna = mt76x2_set_antenna,
+	.get_antenna = mt76x2_get_antenna,
+	.set_rts_threshold = mt76x2_set_rts_threshold,
+};
+