Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 149 insertions, 0 deletions

diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2_tx_common.c b/drivers/net/wireless/mediatek/mt76/mt76x2_tx_common.c
new file mode 100644
index 000000000..c0ca0df84
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt76x2_tx_common.c
@@ -0,0 +1,149 @@
+/*
+ * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
+ * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
+ *
+ * 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 "mt76x2_dma.h"
+
+void mt76x2_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control,
+	       struct sk_buff *skb)
+{
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	struct mt76x2_dev *dev = hw->priv;
+	struct ieee80211_vif *vif = info->control.vif;
+	struct mt76_wcid *wcid = &dev->global_wcid;
+
+	if (control->sta) {
+		struct mt76x2_sta *msta;
+
+		msta = (struct mt76x2_sta *)control->sta->drv_priv;
+		wcid = &msta->wcid;
+		/* sw encrypted frames */
+		if (!info->control.hw_key && wcid->hw_key_idx != 0xff)
+			control->sta = NULL;
+	}
+
+	if (vif && !control->sta) {
+		struct mt76x2_vif *mvif;
+
+		mvif = (struct mt76x2_vif *)vif->drv_priv;
+		wcid = &mvif->group_wcid;
+	}
+
+	mt76_tx(&dev->mt76, control->sta, wcid, skb);
+}
+EXPORT_SYMBOL_GPL(mt76x2_tx);
+
+int mt76x2_insert_hdr_pad(struct sk_buff *skb)
+{
+	int len = ieee80211_get_hdrlen_from_skb(skb);
+
+	if (len % 4 == 0)
+		return 0;
+
+	skb_push(skb, 2);
+	memmove(skb->data, skb->data + 2, len);
+
+	skb->data[len] = 0;
+	skb->data[len + 1] = 0;
+	return 2;
+}
+EXPORT_SYMBOL_GPL(mt76x2_insert_hdr_pad);
+
+s8 mt76x2_tx_get_max_txpwr_adj(struct mt76x2_dev *dev,
+			       const struct ieee80211_tx_rate *rate)
+{
+	s8 max_txpwr;
+
+	if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
+		u8 mcs = ieee80211_rate_get_vht_mcs(rate);
+
+		if (mcs == 8 || mcs == 9) {
+			max_txpwr = dev->rate_power.vht[8];
+		} else {
+			u8 nss, idx;
+
+			nss = ieee80211_rate_get_vht_nss(rate);
+			idx = ((nss - 1) << 3) + mcs;
+			max_txpwr = dev->rate_power.ht[idx & 0xf];
+		}
+	} else if (rate->flags & IEEE80211_TX_RC_MCS) {
+		max_txpwr = dev->rate_power.ht[rate->idx & 0xf];
+	} else {
+		enum nl80211_band band = dev->mt76.chandef.chan->band;
+
+		if (band == NL80211_BAND_2GHZ) {
+			const struct ieee80211_rate *r;
+			struct wiphy *wiphy = mt76_hw(dev)->wiphy;
+			struct mt76_rate_power *rp = &dev->rate_power;
+
+			r = &wiphy->bands[band]->bitrates[rate->idx];
+			if (r->flags & IEEE80211_RATE_SHORT_PREAMBLE)
+				max_txpwr = rp->cck[r->hw_value & 0x3];
+			else
+				max_txpwr = rp->ofdm[r->hw_value & 0x7];
+		} else {
+			max_txpwr = dev->rate_power.ofdm[rate->idx & 0x7];
+		}
+	}
+
+	return max_txpwr;
+}
+EXPORT_SYMBOL_GPL(mt76x2_tx_get_max_txpwr_adj);
+
+s8 mt76x2_tx_get_txpwr_adj(struct mt76x2_dev *dev, s8 txpwr, s8 max_txpwr_adj)
+{
+	txpwr = min_t(s8, txpwr, dev->txpower_conf);
+	txpwr -= (dev->target_power + dev->target_power_delta[0]);
+	txpwr = min_t(s8, txpwr, max_txpwr_adj);
+
+	if (!dev->enable_tpc)
+		return 0;
+	else if (txpwr >= 0)
+		return min_t(s8, txpwr, 7);
+	else
+		return (txpwr < -16) ? 8 : (txpwr + 32) / 2;
+}
+EXPORT_SYMBOL_GPL(mt76x2_tx_get_txpwr_adj);
+
+void mt76x2_tx_set_txpwr_auto(struct mt76x2_dev *dev, s8 txpwr)
+{
+	s8 txpwr_adj;
+
+	txpwr_adj = mt76x2_tx_get_txpwr_adj(dev, txpwr,
+					    dev->rate_power.ofdm[4]);
+	mt76_rmw_field(dev, MT_PROT_AUTO_TX_CFG,
+		       MT_PROT_AUTO_TX_CFG_PROT_PADJ, txpwr_adj);
+	mt76_rmw_field(dev, MT_PROT_AUTO_TX_CFG,
+		       MT_PROT_AUTO_TX_CFG_AUTO_PADJ, txpwr_adj);
+}
+EXPORT_SYMBOL_GPL(mt76x2_tx_set_txpwr_auto);
+
+void mt76x2_tx_complete(struct mt76x2_dev *dev, struct sk_buff *skb)
+{
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+
+	if (info->flags & IEEE80211_TX_CTL_AMPDU) {
+		ieee80211_free_txskb(mt76_hw(dev), skb);
+	} else {
+		ieee80211_tx_info_clear_status(info);
+		info->status.rates[0].idx = -1;
+		info->flags |= IEEE80211_TX_STAT_ACK;
+		ieee80211_tx_status(mt76_hw(dev), skb);
+	}
+}
+EXPORT_SYMBOL_GPL(mt76x2_tx_complete);
+