1 files changed, 87 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/sdio_mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/sdio_mac.c
new file mode 100644
index 000000000000..91a7acd49ee4
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/sdio_mac.c
@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: ISC
+/* Copyright (C) 2021 MediaTek Inc. */
+
+#include <linux/iopoll.h>
+#include <linux/mmc/sdio_func.h>
+#include "mt7921.h"
+#include "mac.h"
+
+static void
+mt7921s_write_txwi(struct mt7921_dev *dev, struct mt76_wcid *wcid,
+		   enum mt76_txq_id qid, struct ieee80211_sta *sta,
+		   struct sk_buff *skb)
+{
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	struct ieee80211_key_conf *key = info->control.hw_key;
+	__le32 *txwi;
+	int pid;
+
+	pid = mt76_tx_status_skb_add(&dev->mt76, wcid, skb);
+	txwi = (__le32 *)(skb->data - MT_SDIO_TXD_SIZE);
+	memset(txwi, 0, MT_SDIO_TXD_SIZE);
+	mt7921_mac_write_txwi(dev, txwi, skb, wcid, key, pid, false);
+	skb_push(skb, MT_SDIO_TXD_SIZE);
+}
+
+int mt7921s_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
+			   enum mt76_txq_id qid, struct mt76_wcid *wcid,
+			   struct ieee80211_sta *sta,
+			   struct mt76_tx_info *tx_info)
+{
+	struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_info->skb);
+	struct sk_buff *skb = tx_info->skb;
+	int pad;
+
+	if (unlikely(tx_info->skb->len <= ETH_HLEN))
+		return -EINVAL;
+
+	if (!wcid)
+		wcid = &dev->mt76.global_wcid;
+
+	if (sta) {
+		struct mt7921_sta *msta = (struct mt7921_sta *)sta->drv_priv;
+
+		if (time_after(jiffies, msta->last_txs + HZ / 4)) {
+			info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
+			msta->last_txs = jiffies;
+		}
+	}
+
+	mt7921s_write_txwi(dev, wcid, qid, sta, skb);
+
+	mt7921_skb_add_sdio_hdr(skb, MT7921_SDIO_DATA);
+	pad = round_up(skb->len, 4) - skb->len;
+
+	return mt76_skb_adjust_pad(skb, pad);
+}
+
+void mt7921s_tx_complete_skb(struct mt76_dev *mdev, struct mt76_queue_entry *e)
+{
+	__le32 *txwi = (__le32 *)(e->skb->data + MT_SDIO_HDR_SIZE);
+	unsigned int headroom = MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE;
+	struct ieee80211_sta *sta;
+	struct mt76_wcid *wcid;
+	u16 idx;
+
+	idx = FIELD_GET(MT_TXD1_WLAN_IDX, le32_to_cpu(txwi[1]));
+	wcid = rcu_dereference(mdev->wcid[idx]);
+	sta = wcid_to_sta(wcid);
+
+	if (sta && likely(e->skb->protocol != cpu_to_be16(ETH_P_PAE)))
+		mt7921_tx_check_aggr(sta, txwi);
+
+	skb_pull(e->skb, headroom);
+	mt76_tx_complete_skb(mdev, e->wcid, e->skb);
+}
+
+bool mt7921s_tx_status_data(struct mt76_dev *mdev, u8 *update)
+{
+	struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
+
+	mt7921_mutex_acquire(dev);
+	mt7921_mac_sta_poll(dev);
+	mt7921_mutex_release(dev);
+
+	return 0;
+}