[RFC,v2,11/18] mt76: add mt76x2_tx_common to mt76x2-common module

Message ID	20180520081522.10163-12-lorenzo.bianconi@redhat.com (mailing list archive)
State	RFC
Delegated to:	Kalle Valo
Headers	show Return-Path: <linux-wireless-owner@kernel.org> From: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> To: nbd@nbd.name Cc: linux-wireless@vger.kernel.org, sgruszka@redhat.com Subject: [RFC v2 11/18] mt76: add mt76x2_tx_common to mt76x2-common module Date: Sun, 20 May 2018 10:15:15 +0200 Message-Id: <20180520081522.10163-12-lorenzo.bianconi@redhat.com> Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk

diff --git a/drivers/net/wireless/mediatek/mt76/Makefile b/drivers/net/wireless/mediatek/mt76/Makefile index 57feda501a51..e1226aae82fa 100644 --- a/drivers/net/wireless/mediatek/mt76/Makefile +++ b/drivers/net/wireless/mediatek/mt76/Makefile @@ -8,7 +8,7 @@ mt76-y := \ CFLAGS_trace.o := -I$(src) mt76x2-common-y := \ - mt76x2_eeprom.o + mt76x2_eeprom.o mt76x2_tx_common.o mt76x2e-y := \ mt76x2_pci.o mt76x2_dma.o \ diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2.h b/drivers/net/wireless/mediatek/mt76/mt76x2.h index f83910c1e20d..9d4efde6682a 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x2.h +++ b/drivers/net/wireless/mediatek/mt76/mt76x2.h @@ -268,4 +268,6 @@ s8 mt76x2_tx_get_max_txpwr_adj(struct mt76x2_dev *dev, s8 mt76x2_tx_get_txpwr_adj(struct mt76x2_dev *dev, s8 txpwr, s8 max_txpwr_adj); void mt76x2_tx_set_txpwr_auto(struct mt76x2_dev *dev, s8 txpwr); +int mt76x2_insert_hdr_pad(struct sk_buff *skb); + #endif diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2_tx.c b/drivers/net/wireless/mediatek/mt76/mt76x2_tx.c index d16d438173e4..53b0ba61e15a 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x2_tx.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x2_tx.c @@ -23,129 +23,6 @@ struct beacon_bc_data { struct sk_buff *tail[8]; }; -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 != -1) - 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); -} - -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); - } -} - -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; -} - -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; -} - -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); -} - -static 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; -} - 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, 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 000000000000..36afb166fa3f --- /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 != -1) + 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); +

[RFC,v2,11/18] mt76: add mt76x2_tx_common to mt76x2-common module

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