mt76x0: pci: add mt76x0e_{start/stop} callbacks

Introduce mt76x0e_start and mt76x0e_stop mac80211
callbacks to start/stop device mac opening/closing
the netdevice

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt76x0/pci.c

@@ -25,11 +25,45 @@
 
 static int mt76x0e_start(struct ieee80211_hw *hw)
 {
+	struct mt76x0_dev *dev = hw->priv;
+
+	mutex_lock(&dev->mt76.mutex);
+
+	mt76x02_mac_start(&dev->mt76);
+	ieee80211_queue_delayed_work(dev->mt76.hw, &dev->mac_work,
+				     MT_CALIBRATE_INTERVAL);
+	ieee80211_queue_delayed_work(dev->mt76.hw, &dev->cal_work,
+				     MT_CALIBRATE_INTERVAL);
+	set_bit(MT76_STATE_RUNNING, &dev->mt76.state);
+
+	mutex_unlock(&dev->mt76.mutex);
+
 	return 0;
 }
 
 static void mt76x0e_stop(struct ieee80211_hw *hw)
 {
+	struct mt76x0_dev *dev = hw->priv;
+
+	mutex_lock(&dev->mt76.mutex);
+
+	clear_bit(MT76_STATE_RUNNING, &dev->mt76.state);
+	cancel_delayed_work_sync(&dev->cal_work);
+	cancel_delayed_work_sync(&dev->mac_work);
+
+	if (!mt76_poll(dev, MT_WPDMA_GLO_CFG, MT_WPDMA_GLO_CFG_TX_DMA_BUSY,
+		       0, 1000))
+		dev_warn(dev->mt76.dev, "TX DMA did not stop\n");
+	mt76_clear(dev, MT_WPDMA_GLO_CFG, MT_WPDMA_GLO_CFG_TX_DMA_EN);
+
+	mt76x0_mac_stop(dev);
+
+	if (!mt76_poll(dev, MT_WPDMA_GLO_CFG, MT_WPDMA_GLO_CFG_RX_DMA_BUSY,
+		       0, 1000))
+		dev_warn(dev->mt76.dev, "TX DMA did not stop\n");
+	mt76_clear(dev, MT_WPDMA_GLO_CFG, MT_WPDMA_GLO_CFG_RX_DMA_EN);
+
+	mutex_unlock(&dev->mt76.mutex);
 }
 
 static const struct ieee80211_ops mt76x0e_ops = {