Commit b9c45e1c authored by Lorenzo Bianconi's avatar Lorenzo Bianconi Committed by Kalle Valo
Browse files

mt76: add mt76x2_mac_common to mt76x2-common module 



Move mac related code shared between mt76x2 and mt76x2u in
mt76x2-common module

Signed-off-by: default avatarLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
parent 9367a9c7

drivers/net/wireless/mediatek/mt76/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -8,7 +8,7 @@ mt76-y := \ 
CFLAGS_trace.o := -I$(src)



mt76x2-common-y := \

	mt76x2_eeprom.o mt76x2_tx_common.o

	mt76x2_eeprom.o mt76x2_tx_common.o mt76x2_mac_common.o



mt76x2e-y := \

	mt76x2_pci.o mt76x2_dma.o \

drivers/net/wireless/mediatek/mt76/mt76x2.h

+6 −1
Original line number Diff line number Diff line
@@ -235,7 +235,7 @@ void mt76x2_phy_set_antenna(struct mt76x2_dev *dev); 
int mt76x2_phy_start(struct mt76x2_dev *dev);

int mt76x2_phy_set_channel(struct mt76x2_dev *dev,

			 struct cfg80211_chan_def *chandef);

int mt76x2_phy_get_rssi(struct mt76x2_dev *dev, s8 rssi, int chain);

int mt76x2_mac_get_rssi(struct mt76x2_dev *dev, s8 rssi, int chain);

void mt76x2_phy_calibrate(struct work_struct *work);

void mt76x2_phy_set_txpower(struct mt76x2_dev *dev);
@@ -282,4 +282,9 @@ void mt76x2_tx_set_txpwr_auto(struct mt76x2_dev *dev, s8 txpwr); 


int mt76x2_insert_hdr_pad(struct sk_buff *skb);



bool mt76x2_mac_load_tx_status(struct mt76x2_dev *dev,

			       struct mt76x2_tx_status *stat);

void mt76x2_send_tx_status(struct mt76x2_dev *dev,

			   struct mt76x2_tx_status *stat, u8 *update);



#endif

drivers/net/wireless/mediatek/mt76/mt76x2_init.c

+0 −35
Original line number Diff line number Diff line
@@ -338,41 +338,6 @@ int mt76x2_mac_start(struct mt76x2_dev *dev) 
	return 0;

}



void mt76x2_mac_stop(struct mt76x2_dev *dev, bool force)

{

	bool stopped = false;

	u32 rts_cfg;

	int i;



	mt76_wr(dev, MT_MAC_SYS_CTRL, 0);



	rts_cfg = mt76_rr(dev, MT_TX_RTS_CFG);

	mt76_wr(dev, MT_TX_RTS_CFG, rts_cfg & ~MT_TX_RTS_CFG_RETRY_LIMIT);



	/* Wait for MAC to become idle */

	for (i = 0; i < 300; i++) {

		if ((mt76_rr(dev, MT_MAC_STATUS) &

		     (MT_MAC_STATUS_RX | MT_MAC_STATUS_TX)) ||

		    mt76_rr(dev, MT_BBP(IBI, 12))) {

			udelay(1);

			continue;

		}



		stopped = true;

		break;

	}



	if (force && !stopped) {

		mt76_set(dev, MT_BBP(CORE, 4), BIT(1));

		mt76_clear(dev, MT_BBP(CORE, 4), BIT(1));



		mt76_set(dev, MT_BBP(CORE, 4), BIT(0));

		mt76_clear(dev, MT_BBP(CORE, 4), BIT(0));

	}



	mt76_wr(dev, MT_TX_RTS_CFG, rts_cfg);

}



void mt76x2_mac_resume(struct mt76x2_dev *dev)

{

	mt76_wr(dev, MT_MAC_SYS_CTRL,

drivers/net/wireless/mediatek/mt76/mt76x2_mac.c

+0 −627
Original line number Diff line number Diff line
@@ -28,535 +28,6 @@ void mt76x2_mac_set_bssid(struct mt76x2_dev *dev, u8 idx, const u8 *addr) 
		       get_unaligned_le16(addr + 4));

}



static int

mt76x2_mac_process_rate(struct mt76_rx_status *status, u16 rate)

{

	u8 idx = FIELD_GET(MT_RXWI_RATE_INDEX, rate);



	switch (FIELD_GET(MT_RXWI_RATE_PHY, rate)) {

	case MT_PHY_TYPE_OFDM:

		if (idx >= 8)

			idx = 0;



		if (status->band == NL80211_BAND_2GHZ)

			idx += 4;



		status->rate_idx = idx;

		return 0;

	case MT_PHY_TYPE_CCK:

		if (idx >= 8) {

			idx -= 8;

			status->enc_flags |= RX_ENC_FLAG_SHORTPRE;

		}



		if (idx >= 4)

			idx = 0;



		status->rate_idx = idx;

		return 0;

	case MT_PHY_TYPE_HT_GF:

		status->enc_flags |= RX_ENC_FLAG_HT_GF;

		/* fall through */

	case MT_PHY_TYPE_HT:

		status->encoding = RX_ENC_HT;

		status->rate_idx = idx;

		break;

	case MT_PHY_TYPE_VHT:

		status->encoding = RX_ENC_VHT;

		status->rate_idx = FIELD_GET(MT_RATE_INDEX_VHT_IDX, idx);

		status->nss = FIELD_GET(MT_RATE_INDEX_VHT_NSS, idx) + 1;

		break;

	default:

		return -EINVAL;

	}



	if (rate & MT_RXWI_RATE_LDPC)

		status->enc_flags |= RX_ENC_FLAG_LDPC;



	if (rate & MT_RXWI_RATE_SGI)

		status->enc_flags |= RX_ENC_FLAG_SHORT_GI;



	if (rate & MT_RXWI_RATE_STBC)

		status->enc_flags |= 1 << RX_ENC_FLAG_STBC_SHIFT;



	switch (FIELD_GET(MT_RXWI_RATE_BW, rate)) {

	case MT_PHY_BW_20:

		break;

	case MT_PHY_BW_40:

		status->bw = RATE_INFO_BW_40;

		break;

	case MT_PHY_BW_80:

		status->bw = RATE_INFO_BW_80;

		break;

	default:

		break;

	}



	return 0;

}



static __le16

mt76x2_mac_tx_rate_val(struct mt76x2_dev *dev,

		       const struct ieee80211_tx_rate *rate, u8 *nss_val)

{

	u16 rateval;

	u8 phy, rate_idx;

	u8 nss = 1;

	u8 bw = 0;



	if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {

		rate_idx = rate->idx;

		nss = 1 + (rate->idx >> 4);

		phy = MT_PHY_TYPE_VHT;

		if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)

			bw = 2;

		else if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)

			bw = 1;

	} else if (rate->flags & IEEE80211_TX_RC_MCS) {

		rate_idx = rate->idx;

		nss = 1 + (rate->idx >> 3);

		phy = MT_PHY_TYPE_HT;

		if (rate->flags & IEEE80211_TX_RC_GREEN_FIELD)

			phy = MT_PHY_TYPE_HT_GF;

		if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)

			bw = 1;

	} else {

		const struct ieee80211_rate *r;

		int band = dev->mt76.chandef.chan->band;

		u16 val;



		r = &mt76_hw(dev)->wiphy->bands[band]->bitrates[rate->idx];

		if (rate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)

			val = r->hw_value_short;

		else

			val = r->hw_value;



		phy = val >> 8;

		rate_idx = val & 0xff;

		bw = 0;

	}



	rateval = FIELD_PREP(MT_RXWI_RATE_INDEX, rate_idx);

	rateval |= FIELD_PREP(MT_RXWI_RATE_PHY, phy);

	rateval |= FIELD_PREP(MT_RXWI_RATE_BW, bw);

	if (rate->flags & IEEE80211_TX_RC_SHORT_GI)

		rateval |= MT_RXWI_RATE_SGI;



	*nss_val = nss;

	return cpu_to_le16(rateval);

}



void mt76x2_mac_wcid_set_drop(struct mt76x2_dev *dev, u8 idx, bool drop)

{

	u32 val = mt76_rr(dev, MT_WCID_DROP(idx));

	u32 bit = MT_WCID_DROP_MASK(idx);



	/* prevent unnecessary writes */

	if ((val & bit) != (bit * drop))

		mt76_wr(dev, MT_WCID_DROP(idx), (val & ~bit) | (bit * drop));

}



void mt76x2_mac_wcid_set_rate(struct mt76x2_dev *dev, struct mt76_wcid *wcid,

			      const struct ieee80211_tx_rate *rate)

{

	spin_lock_bh(&dev->mt76.lock);

	wcid->tx_rate = mt76x2_mac_tx_rate_val(dev, rate, &wcid->tx_rate_nss);

	wcid->tx_rate_set = true;

	spin_unlock_bh(&dev->mt76.lock);

}



void mt76x2_mac_write_txwi(struct mt76x2_dev *dev, struct mt76x2_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;

	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;

	u16 rate_ht_mask = FIELD_PREP(MT_RXWI_RATE_PHY, BIT(1) | BIT(2));

	u16 txwi_flags = 0;

	u8 nss;

	s8 txpwr_adj, max_txpwr_adj;

	u8 ccmp_pn[8];



	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->mt76.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 = mt76x2_mac_tx_rate_val(dev, rate, &nss);

		max_txpwr_adj = mt76x2_tx_get_max_txpwr_adj(dev, rate);

	}

	spin_unlock_bh(&dev->mt76.lock);



	txpwr_adj = mt76x2_tx_get_txpwr_adj(dev, dev->txpower_conf,

					    max_txpwr_adj);

	txwi->ctl2 = FIELD_PREP(MT_TX_PWR_ADJ, txpwr_adj);



	if (mt76xx_rev(dev) >= MT76XX_REV_E4)

		txwi->txstream = 0x13;

	else if (mt76xx_rev(dev) >= MT76XX_REV_E3 &&

		 !(txwi->rate & cpu_to_le16(rate_ht_mask)))

		txwi->txstream = 0x93;



	if (info->flags & IEEE80211_TX_CTL_LDPC)

		txwi->rate |= cpu_to_le16(MT_RXWI_RATE_LDPC);

	if ((info->flags & IEEE80211_TX_CTL_STBC) && nss == 1)

		txwi->rate |= cpu_to_le16(MT_RXWI_RATE_STBC);

	if (nss > 1 && sta && sta->smps_mode == IEEE80211_SMPS_DYNAMIC)

		txwi_flags |= MT_TXWI_FLAGS_MMPS;

	if (!(info->flags & IEEE80211_TX_CTL_NO_ACK))

		txwi->ack_ctl |= MT_TXWI_ACK_CTL_REQ;

	if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ)

		txwi->ack_ctl |= MT_TXWI_ACK_CTL_NSEQ;

	if (info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE)

		txwi->pktid |= MT_TXWI_PKTID_PROBE;

	if ((info->flags & IEEE80211_TX_CTL_AMPDU) && sta) {

		u8 ba_size = IEEE80211_MIN_AMPDU_BUF;



		ba_size <<= sta->ht_cap.ampdu_factor;

		ba_size = min_t(int, 63, ba_size - 1);

		if (info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE)

			ba_size = 0;

		txwi->ack_ctl |= FIELD_PREP(MT_TXWI_ACK_CTL_BA_WINDOW, ba_size);



		txwi_flags |= MT_TXWI_FLAGS_AMPDU |

			 FIELD_PREP(MT_TXWI_FLAGS_MPDU_DENSITY,

				    sta->ht_cap.ampdu_density);

	}



	if (ieee80211_is_probe_resp(hdr->frame_control) ||

	    ieee80211_is_beacon(hdr->frame_control))

		txwi_flags |= MT_TXWI_FLAGS_TS;



	txwi->flags |= cpu_to_le16(txwi_flags);

	txwi->len_ctl = cpu_to_le16(len);

}



static void mt76x2_remove_hdr_pad(struct sk_buff *skb, int len)

{

	int hdrlen;



	if (!len)

		return;



	hdrlen = ieee80211_get_hdrlen_from_skb(skb);

	memmove(skb->data + len, skb->data, hdrlen);

	skb_pull(skb, len);

}



static struct mt76x2_sta *

mt76x2_rx_get_sta(struct mt76x2_dev *dev, u8 idx)

{

	struct mt76_wcid *wcid;



	if (idx >= ARRAY_SIZE(dev->wcid))

		return NULL;



	wcid = rcu_dereference(dev->wcid[idx]);

	if (!wcid)

		return NULL;



	return container_of(wcid, struct mt76x2_sta, wcid);

}



static struct mt76_wcid *

mt76x2_rx_get_sta_wcid(struct mt76x2_dev *dev, struct mt76x2_sta *sta, bool unicast)

{

	if (!sta)

		return NULL;



	if (unicast)

		return &sta->wcid;

	else

		return &sta->vif->group_wcid;

}



int mt76x2_mac_process_rx(struct mt76x2_dev *dev, struct sk_buff *skb,

			  void *rxi)

{

	struct mt76_rx_status *status = (struct mt76_rx_status *) skb->cb;

	struct mt76x2_rxwi *rxwi = rxi;

	struct mt76x2_sta *sta;

	u32 rxinfo = le32_to_cpu(rxwi->rxinfo);

	u32 ctl = le32_to_cpu(rxwi->ctl);

	u16 rate = le16_to_cpu(rxwi->rate);

	u16 tid_sn = le16_to_cpu(rxwi->tid_sn);

	bool unicast = rxwi->rxinfo & cpu_to_le32(MT_RXINFO_UNICAST);

	int pad_len = 0;

	u8 pn_len;

	u8 wcid;

	int len;



	if (!test_bit(MT76_STATE_RUNNING, &dev->mt76.state))

		return -EINVAL;



	if (rxinfo & MT_RXINFO_L2PAD)

		pad_len += 2;



	if (rxinfo & MT_RXINFO_DECRYPT) {

		status->flag |= RX_FLAG_DECRYPTED;

		status->flag |= RX_FLAG_MMIC_STRIPPED;

		status->flag |= RX_FLAG_MIC_STRIPPED;

		status->flag |= RX_FLAG_IV_STRIPPED;

	}



	wcid = FIELD_GET(MT_RXWI_CTL_WCID, ctl);

	sta = mt76x2_rx_get_sta(dev, wcid);

	status->wcid = mt76x2_rx_get_sta_wcid(dev, sta, unicast);



	len = FIELD_GET(MT_RXWI_CTL_MPDU_LEN, ctl);

	pn_len = FIELD_GET(MT_RXINFO_PN_LEN, rxinfo);

	if (pn_len) {

		int offset = ieee80211_get_hdrlen_from_skb(skb) + pad_len;

		u8 *data = skb->data + offset;



		status->iv[0] = data[7];

		status->iv[1] = data[6];

		status->iv[2] = data[5];

		status->iv[3] = data[4];

		status->iv[4] = data[1];

		status->iv[5] = data[0];



		/*

		 * Driver CCMP validation can't deal with fragments.

		 * Let mac80211 take care of it.

		 */

		if (rxinfo & MT_RXINFO_FRAG) {

			status->flag &= ~RX_FLAG_IV_STRIPPED;

		} else {

			pad_len += pn_len << 2;

			len -= pn_len << 2;

		}

	}



	mt76x2_remove_hdr_pad(skb, pad_len);



	if ((rxinfo & MT_RXINFO_BA) && !(rxinfo & MT_RXINFO_NULL))

		status->aggr = true;



	if (WARN_ON_ONCE(len > skb->len))

		return -EINVAL;



	pskb_trim(skb, len);

	status->chains = BIT(0) | BIT(1);

	status->chain_signal[0] = mt76x2_phy_get_rssi(dev, rxwi->rssi[0], 0);

	status->chain_signal[1] = mt76x2_phy_get_rssi(dev, rxwi->rssi[1], 1);

	status->signal = max(status->chain_signal[0], status->chain_signal[1]);

	status->freq = dev->mt76.chandef.chan->center_freq;

	status->band = dev->mt76.chandef.chan->band;



	status->tid = FIELD_GET(MT_RXWI_TID, tid_sn);

	status->seqno = FIELD_GET(MT_RXWI_SN, tid_sn);



	if (sta) {

		ewma_signal_add(&sta->rssi, status->signal);

		sta->inactive_count = 0;

	}



	return mt76x2_mac_process_rate(status, rate);

}



static int

mt76x2_mac_process_tx_rate(struct ieee80211_tx_rate *txrate, u16 rate,

			   enum nl80211_band band)

{

	u8 idx = FIELD_GET(MT_RXWI_RATE_INDEX, rate);



	txrate->idx = 0;

	txrate->flags = 0;

	txrate->count = 1;



	switch (FIELD_GET(MT_RXWI_RATE_PHY, rate)) {

	case MT_PHY_TYPE_OFDM:

		if (band == NL80211_BAND_2GHZ)

			idx += 4;



		txrate->idx = idx;

		return 0;

	case MT_PHY_TYPE_CCK:

		if (idx >= 8)

			idx -= 8;



		txrate->idx = idx;

		return 0;

	case MT_PHY_TYPE_HT_GF:

		txrate->flags |= IEEE80211_TX_RC_GREEN_FIELD;

		/* fall through */

	case MT_PHY_TYPE_HT:

		txrate->flags |= IEEE80211_TX_RC_MCS;

		txrate->idx = idx;

		break;

	case MT_PHY_TYPE_VHT:

		txrate->flags |= IEEE80211_TX_RC_VHT_MCS;

		txrate->idx = idx;

		break;

	default:

		return -EINVAL;

	}



	switch (FIELD_GET(MT_RXWI_RATE_BW, rate)) {

	case MT_PHY_BW_20:

		break;

	case MT_PHY_BW_40:

		txrate->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH;

		break;

	case MT_PHY_BW_80:

		txrate->flags |= IEEE80211_TX_RC_80_MHZ_WIDTH;

		break;

	default:

		return -EINVAL;

	}



	if (rate & MT_RXWI_RATE_SGI)

		txrate->flags |= IEEE80211_TX_RC_SHORT_GI;



	return 0;

}



static void

mt76x2_mac_fill_tx_status(struct mt76x2_dev *dev,

			  struct ieee80211_tx_info *info,

			  struct mt76x2_tx_status *st, int n_frames)

{

	struct ieee80211_tx_rate *rate = info->status.rates;

	int cur_idx, last_rate;

	int i;



	if (!n_frames)

		return;



	last_rate = min_t(int, st->retry, IEEE80211_TX_MAX_RATES - 1);

	mt76x2_mac_process_tx_rate(&rate[last_rate], st->rate,

				 dev->mt76.chandef.chan->band);

	if (last_rate < IEEE80211_TX_MAX_RATES - 1)

		rate[last_rate + 1].idx = -1;



	cur_idx = rate[last_rate].idx + last_rate;

	for (i = 0; i <= last_rate; i++) {

		rate[i].flags = rate[last_rate].flags;

		rate[i].idx = max_t(int, 0, cur_idx - i);

		rate[i].count = 1;

	}

	rate[last_rate].count = st->retry + 1 - last_rate;



	info->status.ampdu_len = n_frames;

	info->status.ampdu_ack_len = st->success ? n_frames : 0;



	if (st->pktid & MT_TXWI_PKTID_PROBE)

		info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE;



	if (st->aggr)

		info->flags |= IEEE80211_TX_CTL_AMPDU |

			       IEEE80211_TX_STAT_AMPDU;



	if (!st->ack_req)

		info->flags |= IEEE80211_TX_CTL_NO_ACK;

	else if (st->success)

		info->flags |= IEEE80211_TX_STAT_ACK;

}



static void

mt76x2_send_tx_status(struct mt76x2_dev *dev, struct mt76x2_tx_status *stat,

		      u8 *update)

{

	struct ieee80211_tx_info info = {};

	struct ieee80211_sta *sta = NULL;

	struct mt76_wcid *wcid = NULL;

	struct mt76x2_sta *msta = NULL;



	rcu_read_lock();

	if (stat->wcid < ARRAY_SIZE(dev->wcid))

		wcid = rcu_dereference(dev->wcid[stat->wcid]);



	if (wcid) {

		void *priv;



		priv = msta = container_of(wcid, struct mt76x2_sta, wcid);

		sta = container_of(priv, struct ieee80211_sta,

				   drv_priv);

	}



	if (msta && stat->aggr) {

		u32 stat_val, stat_cache;



		stat_val = stat->rate;

		stat_val |= ((u32) stat->retry) << 16;

		stat_cache = msta->status.rate;

		stat_cache |= ((u32) msta->status.retry) << 16;



		if (*update == 0 && stat_val == stat_cache &&

		    stat->wcid == msta->status.wcid && msta->n_frames < 32) {

			msta->n_frames++;

			goto out;

		}



		mt76x2_mac_fill_tx_status(dev, &info, &msta->status,

					  msta->n_frames);



		msta->status = *stat;

		msta->n_frames = 1;

		*update = 0;

	} else {

		mt76x2_mac_fill_tx_status(dev, &info, stat, 1);

		*update = 1;

	}



	ieee80211_tx_status_noskb(mt76_hw(dev), sta, &info);



out:

	rcu_read_unlock();

}



static bool

mt76x2_mac_load_tx_status(struct mt76x2_dev *dev,

			  struct mt76x2_tx_status *stat)

{

	u32 stat1, stat2;



	stat2 = mt76_rr(dev, MT_TX_STAT_FIFO_EXT);

	stat1 = mt76_rr(dev, MT_TX_STAT_FIFO);



	stat->valid = !!(stat1 & MT_TX_STAT_FIFO_VALID);

	if (!stat->valid)

		return false;



	stat->success = !!(stat1 & MT_TX_STAT_FIFO_SUCCESS);

	stat->aggr = !!(stat1 & MT_TX_STAT_FIFO_AGGR);

	stat->ack_req = !!(stat1 & MT_TX_STAT_FIFO_ACKREQ);

	stat->wcid = FIELD_GET(MT_TX_STAT_FIFO_WCID, stat1);

	stat->rate = FIELD_GET(MT_TX_STAT_FIFO_RATE, stat1);



	stat->retry = FIELD_GET(MT_TX_STAT_FIFO_EXT_RETRY, stat2);

	stat->pktid = FIELD_GET(MT_TX_STAT_FIFO_EXT_PKTID, stat2);



	return true;

}



void mt76x2_mac_poll_tx_status(struct mt76x2_dev *dev, bool irq)

{

	struct mt76x2_tx_status stat = {};
@@ -625,104 +96,6 @@ void mt76x2_tx_complete_skb(struct mt76_dev *mdev, struct mt76_queue *q, 
		dev_kfree_skb_any(e->skb);

}



static enum mt76x2_cipher_type

mt76x2_mac_get_key_info(struct ieee80211_key_conf *key, u8 *key_data)

{

	memset(key_data, 0, 32);

	if (!key)

		return MT_CIPHER_NONE;



	if (key->keylen > 32)

		return MT_CIPHER_NONE;



	memcpy(key_data, key->key, key->keylen);



	switch (key->cipher) {

	case WLAN_CIPHER_SUITE_WEP40:

		return MT_CIPHER_WEP40;

	case WLAN_CIPHER_SUITE_WEP104:

		return MT_CIPHER_WEP104;

	case WLAN_CIPHER_SUITE_TKIP:

		return MT_CIPHER_TKIP;

	case WLAN_CIPHER_SUITE_CCMP:

		return MT_CIPHER_AES_CCMP;

	default:

		return MT_CIPHER_NONE;

	}

}



void mt76x2_mac_wcid_setup(struct mt76x2_dev *dev, u8 idx, u8 vif_idx, u8 *mac)

{

	struct mt76_wcid_addr addr = {};

	u32 attr;



	attr = FIELD_PREP(MT_WCID_ATTR_BSS_IDX, vif_idx & 7) |

	       FIELD_PREP(MT_WCID_ATTR_BSS_IDX_EXT, !!(vif_idx & 8));



	mt76_wr(dev, MT_WCID_ATTR(idx), attr);



	mt76_wr(dev, MT_WCID_TX_RATE(idx), 0);

	mt76_wr(dev, MT_WCID_TX_RATE(idx) + 4, 0);



	if (idx >= 128)

		return;



	if (mac)

		memcpy(addr.macaddr, mac, ETH_ALEN);



	mt76_wr_copy(dev, MT_WCID_ADDR(idx), &addr, sizeof(addr));

}



int mt76x2_mac_wcid_set_key(struct mt76x2_dev *dev, u8 idx,

			    struct ieee80211_key_conf *key)

{

	enum mt76x2_cipher_type cipher;

	u8 key_data[32];

	u8 iv_data[8];



	cipher = mt76x2_mac_get_key_info(key, key_data);

	if (cipher == MT_CIPHER_NONE && key)

		return -EOPNOTSUPP;



	mt76_rmw_field(dev, MT_WCID_ATTR(idx), MT_WCID_ATTR_PKEY_MODE, cipher);

	mt76_wr_copy(dev, MT_WCID_KEY(idx), key_data, sizeof(key_data));



	memset(iv_data, 0, sizeof(iv_data));

	if (key) {

		mt76_rmw_field(dev, MT_WCID_ATTR(idx), MT_WCID_ATTR_PAIRWISE,

			       !!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE));

		iv_data[3] = key->keyidx << 6;

		if (cipher >= MT_CIPHER_TKIP)

			iv_data[3] |= 0x20;

	}



	mt76_wr_copy(dev, MT_WCID_IV(idx), iv_data, sizeof(iv_data));



	return 0;

}



int mt76x2_mac_shared_key_setup(struct mt76x2_dev *dev, u8 vif_idx, u8 key_idx,

			      struct ieee80211_key_conf *key)

{

	enum mt76x2_cipher_type cipher;

	u8 key_data[32];

	u32 val;



	cipher = mt76x2_mac_get_key_info(key, key_data);

	if (cipher == MT_CIPHER_NONE && key)

		return -EOPNOTSUPP;



	val = mt76_rr(dev, MT_SKEY_MODE(vif_idx));

	val &= ~(MT_SKEY_MODE_MASK << MT_SKEY_MODE_SHIFT(vif_idx, key_idx));

	val |= cipher << MT_SKEY_MODE_SHIFT(vif_idx, key_idx);

	mt76_wr(dev, MT_SKEY_MODE(vif_idx), val);



	mt76_wr_copy(dev, MT_SKEY(vif_idx, key_idx), key_data,

		     sizeof(key_data));



	return 0;

}



static int

mt76_write_beacon(struct mt76x2_dev *dev, int offset, struct sk_buff *skb)

{

drivers/net/wireless/mediatek/mt76/mt76x2_mac_common.c

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