diff options
| author | Lorenzo Bianconi <lorenzo.bianconi@redhat.com> | 2018-10-01 18:58:19 +0200 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2018-10-05 20:05:44 +0200 |
| commit | 427f9ebec682f8fd44202f5582d745ead09d95ce (patch) | |
| tree | fbdf8aaffc3dd72d028976d15f22a37cbed4c66f /drivers/net/wireless/mediatek/mt76/mt76x02_mac.c | |
| parent | 1ef3aa88935b994e2e58a15d15ebe697e39a0b48 (diff) | |
mt76: move mt76x02_mac_write_txwi in mt76x02-lib module
Move mt76x02_mac_write_txwi in mt76x02_mac.c since it is shared between
mt76x0 and mt76x2 drivers. This is a preliminary patch to unify txwi
configuration between mt76x0 and mt76x2 drivers
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt76x02_mac.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt76x02_mac.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c b/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c index df4366a702c9..71d677a6b88a 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c @@ -18,6 +18,7 @@ #include "mt76.h" #include "mt76x02_regs.h" #include "mt76x02_mac.h" +#include "mt76x02_util.h" enum mt76x02_cipher_type mt76x02_mac_get_key_info(struct ieee80211_key_conf *key, u8 *key_data) @@ -341,6 +342,68 @@ mt76x02_mac_process_tx_rate(struct ieee80211_tx_rate *txrate, u16 rate, return 0; } +void mt76x02_mac_write_txwi(struct mt76_dev *dev, struct mt76x02_txwi *txwi, + struct sk_buff *skb, struct mt76_wcid *wcid, + struct ieee80211_sta *sta, int len) +{ + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct ieee80211_tx_rate *rate = &info->control.rates[0]; + struct ieee80211_key_conf *key = info->control.hw_key; + u16 rate_ht_mask = FIELD_PREP(MT_RXWI_RATE_PHY, BIT(1) | BIT(2)); + u8 nss; + s8 txpwr_adj, max_txpwr_adj; + u8 ccmp_pn[8], nstreams = dev->chainmask & 0xf; + + memset(txwi, 0, sizeof(*txwi)); + + if (wcid) + txwi->wcid = wcid->idx; + else + txwi->wcid = 0xff; + + txwi->pktid = 1; + + if (wcid && wcid->sw_iv && key) { + u64 pn = atomic64_inc_return(&key->tx_pn); + ccmp_pn[0] = pn; + ccmp_pn[1] = pn >> 8; + ccmp_pn[2] = 0; + ccmp_pn[3] = 0x20 | (key->keyidx << 6); + ccmp_pn[4] = pn >> 16; + ccmp_pn[5] = pn >> 24; + ccmp_pn[6] = pn >> 32; + ccmp_pn[7] = pn >> 40; + txwi->iv = *((__le32 *)&ccmp_pn[0]); + txwi->eiv = *((__le32 *)&ccmp_pn[1]); + } + + spin_lock_bh(&dev->lock); + if (wcid && (rate->idx < 0 || !rate->count)) { + txwi->rate = wcid->tx_rate; + max_txpwr_adj = wcid->max_txpwr_adj; + nss = wcid->tx_rate_nss; + } else { + txwi->rate = mt76x02_mac_tx_rate_val(dev, rate, &nss); + max_txpwr_adj = mt76x02_tx_get_max_txpwr_adj(dev, rate); + } + spin_unlock_bh(&dev->lock); + + if (dev->drv->get_tx_txpwr_adj) { + txpwr_adj = dev->drv->get_tx_txpwr_adj(dev, dev->txpower_conf, + max_txpwr_adj); + txwi->ctl2 = FIELD_PREP(MT_TX_PWR_ADJ, txpwr_adj); + } + + if (nstreams > 1 && mt76_rev(dev) >= MT76XX_REV_E4) + txwi->txstream = 0x13; + else if (nstreams > 1 && mt76_rev(dev) >= MT76XX_REV_E3 && + !(txwi->rate & cpu_to_le16(rate_ht_mask))) + txwi->txstream = 0x93; + + mt76x02_mac_fill_txwi(txwi, skb, sta, len, nss); +} +EXPORT_SYMBOL_GPL(mt76x02_mac_write_txwi); + static void mt76x02_mac_fill_tx_status(struct mt76_dev *dev, struct ieee80211_tx_info *info, |