ath9k: implement PA predistortion support
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 875b8b4..20221b8 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -1637,12 +1637,13 @@
bf->bf_frmlen -= padsize;
}
- if (conf_is_ht(&hw->conf)) {
+ if (!txctl->paprd && conf_is_ht(&hw->conf)) {
bf->bf_state.bf_type |= BUF_HT;
if (tx_info->flags & IEEE80211_TX_CTL_LDPC)
use_ldpc = true;
}
+ bf->bf_state.bfs_paprd = txctl->paprd;
bf->bf_flags = setup_tx_flags(skb, use_ldpc);
bf->bf_keytype = get_hw_crypto_keytype(skb);
@@ -1717,6 +1718,9 @@
bf->bf_buf_addr,
txctl->txq->axq_qnum);
+ if (bf->bf_state.bfs_paprd)
+ ar9003_hw_set_paprd_txdesc(ah, ds, bf->bf_state.bfs_paprd);
+
spin_lock_bh(&txctl->txq->axq_lock);
if (bf_isht(bf) && (sc->sc_flags & SC_OP_TXAGGR) &&
@@ -1938,8 +1942,14 @@
}
dma_unmap_single(sc->dev, bf->bf_dmacontext, skb->len, DMA_TO_DEVICE);
- ath_tx_complete(sc, skb, bf->aphy, tx_flags);
- ath_debug_stat_tx(sc, txq, bf, ts);
+
+ if (bf->bf_state.bfs_paprd) {
+ sc->paprd_txok = txok;
+ complete(&sc->paprd_complete);
+ } else {
+ ath_tx_complete(sc, skb, bf->aphy, tx_flags);
+ ath_debug_stat_tx(sc, txq, bf, ts);
+ }
/*
* Return the list of ath_buf of this mpdu to free queue
