mt76x2: move mt76x2 source files to mt76x2 folder

Move mt76x2 and mt76x2u drivers to mt76x2 subfolder and
leave just shared code in mt76 root folder

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

1 files changed, 175 insertions, 0 deletions

diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/pci_tx.c b/drivers/net/wireless/mediatek/mt76/mt76x2/pci_tx.c
new file mode 100644
index 000000000000..69dc1f368f52
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt76x2/pci_tx.c
@@ -0,0 +1,175 @@
+/*
+ * 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"
+#include "../mt76x02_util.h"
+#include "../mt76x02_dma.h"
+
+struct beacon_bc_data {
+	struct mt76x2_dev *dev;
+	struct sk_buff_head q;
+	struct sk_buff *tail[8];
+};
+
+int mt76x2_tx_prepare_skb(struct mt76_dev *mdev, void *txwi,
+			  struct sk_buff *skb, struct mt76_queue *q,
+			  struct mt76_wcid *wcid, struct ieee80211_sta *sta,
+			  u32 *tx_info)
+{
+	struct mt76x2_dev *dev = container_of(mdev, struct mt76x2_dev, mt76);
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	int qsel = MT_QSEL_EDCA;
+	int ret;
+
+	if (q == &dev->mt76.q_tx[MT_TXQ_PSD] && wcid && wcid->idx < 128)
+		mt76x02_mac_wcid_set_drop(&dev->mt76, wcid->idx, false);
+
+	mt76x2_mac_write_txwi(dev, txwi, skb, wcid, sta, skb->len);
+
+	ret = mt76x02_insert_hdr_pad(skb);
+	if (ret < 0)
+		return ret;
+
+	if (info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE)
+		qsel = MT_QSEL_MGMT;
+
+	*tx_info = FIELD_PREP(MT_TXD_INFO_QSEL, qsel) |
+		   MT_TXD_INFO_80211;
+
+	if (!wcid || wcid->hw_key_idx == 0xff || wcid->sw_iv)
+		*tx_info |= MT_TXD_INFO_WIV;
+
+	return 0;
+}
+
+static void
+mt76x2_update_beacon_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
+{
+	struct mt76x2_dev *dev = (struct mt76x2_dev *) priv;
+	struct mt76x02_vif *mvif = (struct mt76x02_vif *) vif->drv_priv;
+	struct sk_buff *skb = NULL;
+
+	if (!(dev->beacon_mask & BIT(mvif->idx)))
+		return;
+
+	skb = ieee80211_beacon_get(mt76_hw(dev), vif);
+	if (!skb)
+		return;
+
+	mt76x2_mac_set_beacon(dev, mvif->idx, skb);
+}
+
+static void
+mt76x2_add_buffered_bc(void *priv, u8 *mac, struct ieee80211_vif *vif)
+{
+	struct beacon_bc_data *data = priv;
+	struct mt76x2_dev *dev = data->dev;
+	struct mt76x02_vif *mvif = (struct mt76x02_vif *) vif->drv_priv;
+	struct ieee80211_tx_info *info;
+	struct sk_buff *skb;
+
+	if (!(dev->beacon_mask & BIT(mvif->idx)))
+		return;
+
+	skb = ieee80211_get_buffered_bc(mt76_hw(dev), vif);
+	if (!skb)
+		return;
+
+	info = IEEE80211_SKB_CB(skb);
+	info->control.vif = vif;
+	info->flags |= IEEE80211_TX_CTL_ASSIGN_SEQ;
+	mt76_skb_set_moredata(skb, true);
+	__skb_queue_tail(&data->q, skb);
+	data->tail[mvif->idx] = skb;
+}
+
+static void
+mt76x2_resync_beacon_timer(struct mt76x2_dev *dev)
+{
+	u32 timer_val = dev->beacon_int << 4;
+
+	dev->tbtt_count++;
+
+	/*
+	 * Beacon timer drifts by 1us every tick, the timer is configured
+	 * in 1/16 TU (64us) units.
+	 */
+	if (dev->tbtt_count < 62)
+		return;
+
+	if (dev->tbtt_count >= 64) {
+		dev->tbtt_count = 0;
+		return;
+	}
+
+	/*
+	 * The updated beacon interval takes effect after two TBTT, because
+	 * at this point the original interval has already been loaded into
+	 * the next TBTT_TIMER value
+	 */
+	if (dev->tbtt_count == 62)
+		timer_val -= 1;
+
+	mt76_rmw_field(dev, MT_BEACON_TIME_CFG,
+		       MT_BEACON_TIME_CFG_INTVAL, timer_val);
+}
+
+void mt76x2_pre_tbtt_tasklet(unsigned long arg)
+{
+	struct mt76x2_dev *dev = (struct mt76x2_dev *) arg;
+	struct mt76_queue *q = &dev->mt76.q_tx[MT_TXQ_PSD];
+	struct beacon_bc_data data = {};
+	struct sk_buff *skb;
+	int i, nframes;
+
+	mt76x2_resync_beacon_timer(dev);
+
+	data.dev = dev;
+	__skb_queue_head_init(&data.q);
+
+	ieee80211_iterate_active_interfaces_atomic(mt76_hw(dev),
+		IEEE80211_IFACE_ITER_RESUME_ALL,
+		mt76x2_update_beacon_iter, dev);
+
+	do {
+		nframes = skb_queue_len(&data.q);
+		ieee80211_iterate_active_interfaces_atomic(mt76_hw(dev),
+			IEEE80211_IFACE_ITER_RESUME_ALL,
+			mt76x2_add_buffered_bc, &data);
+	} while (nframes != skb_queue_len(&data.q));
+
+	if (!nframes)
+		return;
+
+	for (i = 0; i < ARRAY_SIZE(data.tail); i++) {
+		if (!data.tail[i])
+			continue;
+
+		mt76_skb_set_moredata(data.tail[i], false);
+	}
+
+	spin_lock_bh(&q->lock);
+	while ((skb = __skb_dequeue(&data.q)) != NULL) {
+		struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+		struct ieee80211_vif *vif = info->control.vif;
+		struct mt76x02_vif *mvif = (struct mt76x02_vif *) vif->drv_priv;
+
+		mt76_dma_tx_queue_skb(&dev->mt76, q, skb, &mvif->group_wcid,
+				      NULL);
+	}
+	spin_unlock_bh(&q->lock);
+}
+