Add mac files of mt76x0 driver.
Signed-off-by: Stanislaw Gruszka <sgrus...@redhat.com>
---
drivers/net/wireless/mediatek/mt76/mt76x0/mac.c | 660 ++++++++++++++++++++++++
drivers/net/wireless/mediatek/mt76/mt76x0/mac.h | 154 ++++++
2 files changed, 814 insertions(+)
create mode 100644 drivers/net/wireless/mediatek/mt76/mt76x0/mac.c
create mode 100644 drivers/net/wireless/mediatek/mt76/mt76x0/mac.h
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/mac.c
b/drivers/net/wireless/mediatek/mt76/mt76x0/mac.c
new file mode 100644
index 000000000000..7b32777c06e9
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt76x0/mac.c
@@ -0,0 +1,660 @@
+/*
+ * Copyright (C) 2014 Felix Fietkau <n...@openwrt.org>
+ * Copyright (C) 2015 Jakub Kicinski <kubak...@wp.pl>
+ * Copyright (C) 2018 Stanislaw Gruszka <stf...@wp.pl>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include "mt76x0.h"
+#include "trace.h"
+#include <linux/etherdevice.h>
+
+static void
+mt76_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;
+ case MT_PHY_TYPE_CCK:
+ if (idx >= 8)
+ idx -= 8;
+
+ txrate->idx = idx;
+ return;
+ 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:
+ WARN_ON(1);
+ return;
+ }
+
+ 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:
+ WARN_ON(1);
+ return;
+ }
+
+ if (rate & MT_RXWI_RATE_SGI)
+ txrate->flags |= IEEE80211_TX_RC_SHORT_GI;
+}
+
+static void
+mt76_mac_fill_tx_status(struct mt76x0_dev *dev, struct ieee80211_tx_info *info,
+ struct mt76_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);
+ mt76_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 - 1].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;
+}
+
+u16 mt76_mac_tx_rate_val(struct mt76x0_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 = &dev->mt76.hw->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 mt76_mac_wcid_set_rate(struct mt76x0_dev *dev, struct mt76_wcid *wcid,
+ const struct ieee80211_tx_rate *rate)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->mt76.lock, flags);
+ wcid->tx_rate = mt76_mac_tx_rate_val(dev, rate, &wcid->tx_rate_nss);
+ wcid->tx_rate_set = true;
+ spin_unlock_irqrestore(&dev->mt76.lock, flags);
+}
+
+struct mt76_tx_status mt76x0_mac_fetch_tx_status(struct mt76x0_dev *dev)
+{
+ struct mt76_tx_status stat = {};
+ u32 stat2, stat1;
+
+ 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);
+ 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 stat;
+}
+
+void mt76_send_tx_status(struct mt76x0_dev *dev, struct mt76_tx_status *stat,
u8 *update)
+{
+ struct ieee80211_tx_info info = {};
+ struct ieee80211_sta *sta = NULL;
+ struct mt76_wcid *wcid = NULL;
+ struct mt76_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 mt76_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;
+ }
+
+ mt76_mac_fill_tx_status(dev, &info, &msta->status,
+ msta->n_frames);
+ msta->status = *stat;
+ msta->n_frames = 1;
+ *update = 0;
+ } else {
+ mt76_mac_fill_tx_status(dev, &info, stat, 1);
+ *update = 1;
+ }
+
+ spin_lock_bh(&dev->mac_lock);
+ ieee80211_tx_status_noskb(dev->mt76.hw, sta, &info);
+ spin_unlock_bh(&dev->mac_lock);
+out:
+ rcu_read_unlock();
+}
+
+void mt76x0_mac_set_protection(struct mt76x0_dev *dev, bool legacy_prot,
+ int ht_mode)
+{
+ int mode = ht_mode & IEEE80211_HT_OP_MODE_PROTECTION;
+ bool non_gf = !!(ht_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
+ u32 prot[6];
+ bool ht_rts[4] = {};
+ int i;
+
+ prot[0] = MT_PROT_NAV_SHORT |
+ MT_PROT_TXOP_ALLOW_ALL |
+ MT_PROT_RTS_THR_EN;
+ prot[1] = prot[0];
+ if (legacy_prot)
+ prot[1] |= MT_PROT_CTRL_CTS2SELF;
+
+ prot[2] = prot[4] = MT_PROT_NAV_SHORT | MT_PROT_TXOP_ALLOW_BW20;
+ prot[3] = prot[5] = MT_PROT_NAV_SHORT | MT_PROT_TXOP_ALLOW_ALL;
+
+ if (legacy_prot) {
+ prot[2] |= MT_PROT_RATE_CCK_11;
+ prot[3] |= MT_PROT_RATE_CCK_11;
+ prot[4] |= MT_PROT_RATE_CCK_11;
+ prot[5] |= MT_PROT_RATE_CCK_11;
+ } else {
+ prot[2] |= MT_PROT_RATE_OFDM_24;
+ prot[3] |= MT_PROT_RATE_DUP_OFDM_24;
+ prot[4] |= MT_PROT_RATE_OFDM_24;
+ prot[5] |= MT_PROT_RATE_DUP_OFDM_24;
+ }
+
+ switch (mode) {
+ case IEEE80211_HT_OP_MODE_PROTECTION_NONE:
+ break;
+
+ case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER:
+ ht_rts[0] = ht_rts[1] = ht_rts[2] = ht_rts[3] = true;
+ break;
+
+ case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
+ ht_rts[1] = ht_rts[3] = true;
+ break;
+
+ case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
+ ht_rts[0] = ht_rts[1] = ht_rts[2] = ht_rts[3] = true;
+ break;
+ }
+
+ if (non_gf)
+ ht_rts[2] = ht_rts[3] = true;
+
+ for (i = 0; i < 4; i++)
+ if (ht_rts[i])
+ prot[i + 2] |= MT_PROT_CTRL_RTS_CTS;
+
+ for (i = 0; i < 6; i++)
+ mt76_wr(dev, MT_CCK_PROT_CFG + i * 4, prot[i]);
+}
+
+void mt76x0_mac_set_short_preamble(struct mt76x0_dev *dev, bool short_preamb)
+{
+ if (short_preamb)
+ mt76_set(dev, MT_AUTO_RSP_CFG, MT_AUTO_RSP_PREAMB_SHORT);
+ else
+ mt76_clear(dev, MT_AUTO_RSP_CFG, MT_AUTO_RSP_PREAMB_SHORT);
+}
+
+void mt76x0_mac_config_tsf(struct mt76x0_dev *dev, bool enable, int interval)
+{
+ u32 val = mt76_rr(dev, MT_BEACON_TIME_CFG);
+
+ val &= ~(MT_BEACON_TIME_CFG_TIMER_EN |
+ MT_BEACON_TIME_CFG_SYNC_MODE |
+ MT_BEACON_TIME_CFG_TBTT_EN);
+
+ if (!enable) {
+ mt76_wr(dev, MT_BEACON_TIME_CFG, val);
+ return;
+ }
+
+ val &= ~MT_BEACON_TIME_CFG_INTVAL;
+ val |= FIELD_PREP(MT_BEACON_TIME_CFG_INTVAL, interval << 4) |
+ MT_BEACON_TIME_CFG_TIMER_EN |
+ MT_BEACON_TIME_CFG_SYNC_MODE |
+ MT_BEACON_TIME_CFG_TBTT_EN;
+}
+
+static void mt76x0_check_mac_err(struct mt76x0_dev *dev)
+{
+ u32 val = mt76_rr(dev, 0x10f4);
+
+ if (!(val & BIT(29)) || !(val & (BIT(7) | BIT(5))))
+ return;
+
+ dev_err(dev->mt76.dev, "Error: MAC specific condition occurred\n");
+
+ mt76_set(dev, MT_MAC_SYS_CTRL, MT_MAC_SYS_CTRL_RESET_CSR);
+ udelay(10);
+ mt76_clear(dev, MT_MAC_SYS_CTRL, MT_MAC_SYS_CTRL_RESET_CSR);
+}
+void mt76x0_mac_work(struct work_struct *work)
+{
+ struct mt76x0_dev *dev = container_of(work, struct mt76x0_dev,
+ mac_work.work);
+ struct {
+ u32 addr_base;
+ u32 span;
+ u64 *stat_base;
+ } spans[] = {
+ { MT_RX_STA_CNT0, 3, dev->stats.rx_stat },
+ { MT_TX_STA_CNT0, 3, dev->stats.tx_stat },
+ { MT_TX_AGG_STAT, 1, dev->stats.aggr_stat },
+ { MT_MPDU_DENSITY_CNT, 1, dev->stats.zero_len_del },
+ { MT_TX_AGG_CNT_BASE0, 8, &dev->stats.aggr_n[0] },
+ { MT_TX_AGG_CNT_BASE1, 8, &dev->stats.aggr_n[16] },
+ };
+ u32 sum, n;
+ int i, j, k;
+
+ /* Note: using MCU_RANDOM_READ is actually slower then reading all the
+ * registers by hand. MCU takes ca. 20ms to complete read of 24
+ * registers while reading them one by one will takes roughly
+ * 24*200us =~ 5ms.
+ */
+
+ k = 0;
+ n = 0;
+ sum = 0;
+ for (i = 0; i < ARRAY_SIZE(spans); i++)
+ for (j = 0; j < spans[i].span; j++) {
+ u32 val = mt76_rr(dev, spans[i].addr_base + j * 4);
+
+ spans[i].stat_base[j * 2] += val & 0xffff;
+ spans[i].stat_base[j * 2 + 1] += val >> 16;
+
+ /* Calculate average AMPDU length */
+ if (spans[i].addr_base != MT_TX_AGG_CNT_BASE0 &&
+ spans[i].addr_base != MT_TX_AGG_CNT_BASE1)
+ continue;
+
+ n += (val >> 16) + (val & 0xffff);
+ sum += (val & 0xffff) * (1 + k * 2) +
+ (val >> 16) * (2 + k * 2);
+ k++;
+ }
+
+ atomic_set(&dev->avg_ampdu_len, n ? DIV_ROUND_CLOSEST(sum, n) : 1);
+
+ mt76x0_check_mac_err(dev);
+
+ ieee80211_queue_delayed_work(dev->mt76.hw, &dev->mac_work, 10 * HZ);
+}
+
+void
+mt76x0_mac_wcid_setup(struct mt76x0_dev *dev, u8 idx, u8 vif_idx, u8 *mac)
+{
+ u8 zmac[ETH_ALEN] = {};
+ 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);
+
+ if (mac)
+ memcpy(zmac, mac, sizeof(zmac));
+
+ mt76x0_addr_wr(dev, MT_WCID_ADDR(idx), zmac);
+}
+
+void mt76x0_mac_set_ampdu_factor(struct mt76x0_dev *dev)
+{
+ struct ieee80211_sta *sta;
+ struct mt76_wcid *wcid;
+ void *msta;
+ u8 min_factor = 3;
+ int i;
+
+ return;
+
+ rcu_read_lock();
+ for (i = 0; i < ARRAY_SIZE(dev->wcid); i++) {
+ wcid = rcu_dereference(dev->wcid[i]);
+ if (!wcid)
+ continue;
+
+ msta = container_of(wcid, struct mt76_sta, wcid);
+ sta = container_of(msta, struct ieee80211_sta, drv_priv);
+
+ min_factor = min(min_factor, sta->ht_cap.ampdu_factor);
+ }
+ rcu_read_unlock();
+
+ mt76_wr(dev, MT_MAX_LEN_CFG, 0xa0fff |
+ FIELD_PREP(MT_MAX_LEN_CFG_AMPDU, min_factor));
+}
+
+static void
+mt76_mac_process_rate(struct ieee80211_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;
+ 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;
+ 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:
+ WARN_ON(1);
+ return;
+ }
+
+ 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:
+ WARN_ON(1);
+ break;
+ }
+}
+
+static void
+mt76x0_rx_monitor_beacon(struct mt76x0_dev *dev, struct mt76x0_rxwi *rxwi,
+ u16 rate, int rssi)
+{
+ dev->bcn_phy_mode = FIELD_GET(MT_RXWI_RATE_PHY, rate);
+ dev->avg_rssi = ((dev->avg_rssi * 15) / 16 + (rssi << 8)) / 256;
+}
+
+static int
+mt76x0_rx_is_our_beacon(struct mt76x0_dev *dev, u8 *data)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)data;
+
+ return ieee80211_is_beacon(hdr->frame_control) &&
+ ether_addr_equal(hdr->addr2, dev->ap_bssid);
+}
+
+u32 mt76_mac_process_rx(struct mt76x0_dev *dev, struct sk_buff *skb,
+ u8 *data, void *rxi)
+{
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
+ struct mt76x0_rxwi *rxwi = rxi;
+ u32 len, ctl = le32_to_cpu(rxwi->ctl);
+ u16 rate = le16_to_cpu(rxwi->rate);
+ int rssi;
+
+ len = FIELD_GET(MT_RXWI_CTL_MPDU_LEN, ctl);
+ if (WARN_ON(len < 10))
+ return 0;
+
+ if (rxwi->rxinfo & cpu_to_le32(MT_RXINFO_DECRYPT)) {
+ status->flag |= RX_FLAG_DECRYPTED;
+ status->flag |= RX_FLAG_IV_STRIPPED | RX_FLAG_MMIC_STRIPPED;
+ }
+
+ status->chains = BIT(0);
+ rssi = mt76x0_phy_get_rssi(dev, rxwi);
+ status->chain_signal[0] = status->signal = rssi;
+ status->freq = dev->mt76.chandef.chan->center_freq;
+ status->band = dev->mt76.chandef.chan->band;
+
+ mt76_mac_process_rate(status, rate);
+
+ spin_lock_bh(&dev->con_mon_lock);
+ if (mt76x0_rx_is_our_beacon(dev, data)) {
+ mt76x0_rx_monitor_beacon(dev, rxwi, rate, rssi);
+ } else if (rxwi->rxinfo & cpu_to_le32(MT_RXINFO_U2M)) {
+ if (dev->avg_rssi == 0)
+ dev->avg_rssi = rssi;
+ else
+ dev->avg_rssi = (dev->avg_rssi * 15) / 16 + rssi / 16;
+
+ }
+ spin_unlock_bh(&dev->con_mon_lock);
+
+ return len;
+}
+
+static enum mt76_cipher_type
+mt76_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;
+ }
+}
+
+int mt76_mac_wcid_set_key(struct mt76x0_dev *dev, u8 idx,
+ struct ieee80211_key_conf *key)
+{
+ enum mt76_cipher_type cipher;
+ u8 key_data[32];
+ u8 iv_data[8];
+ u32 val;
+
+ cipher = mt76_mac_get_key_info(key, key_data);
+ if (cipher == MT_CIPHER_NONE && key)
+ return -EINVAL;
+
+ trace_set_key(&dev->mt76, idx);
+
+ mt76_wr_copy(dev, MT_WCID_KEY(idx), key_data, sizeof(key_data));
+
+ memset(iv_data, 0, sizeof(iv_data));
+ if (key) {
+ iv_data[3] = key->keyidx << 6;
+ if (cipher >= MT_CIPHER_TKIP) {
+ /* Note: start with 1 to comply with spec,
+ * (see comment on common/cmm_wpa.c:4291).
+ */
+ iv_data[0] |= 1;
+ iv_data[3] |= 0x20;
+ }
+ }
+ mt76_wr_copy(dev, MT_WCID_IV(idx), iv_data, sizeof(iv_data));
+
+ val = mt76_rr(dev, MT_WCID_ATTR(idx));
+ val &= ~MT_WCID_ATTR_PKEY_MODE & ~MT_WCID_ATTR_PKEY_MODE_EXT;
+ val |= FIELD_PREP(MT_WCID_ATTR_PKEY_MODE, cipher & 7) |
+ FIELD_PREP(MT_WCID_ATTR_PKEY_MODE_EXT, cipher >> 3);
+ val &= ~MT_WCID_ATTR_PAIRWISE;
+ val |= MT_WCID_ATTR_PAIRWISE *
+ !!(key && key->flags & IEEE80211_KEY_FLAG_PAIRWISE);
+ mt76_wr(dev, MT_WCID_ATTR(idx), val);
+
+ return 0;
+}
+
+int mt76_mac_shared_key_setup(struct mt76x0_dev *dev, u8 vif_idx, u8 key_idx,
+ struct ieee80211_key_conf *key)
+{
+ enum mt76_cipher_type cipher;
+ u8 key_data[32];
+ u32 val;
+
+ cipher = mt76_mac_get_key_info(key, key_data);
+ if (cipher == MT_CIPHER_NONE && key)
+ return -EINVAL;
+
+ trace_set_shared_key(&dev->mt76, vif_idx, key_idx);
+
+ mt76_wr_copy(dev, MT_SKEY(vif_idx, key_idx),
+ key_data, sizeof(key_data));
+
+ 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);
+
+ return 0;
+}
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/mac.h
b/drivers/net/wireless/mediatek/mt76/mt76x0/mac.h
new file mode 100644
index 000000000000..947eba253553
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt76x0/mac.h
@@ -0,0 +1,154 @@
+/*
+ * Copyright (C) 2014 Felix Fietkau <n...@openwrt.org>
+ * Copyright (C) 2015 Jakub Kicinski <kubak...@wp.pl>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __MT76_MAC_H
+#define __MT76_MAC_H
+
+/* Note: values in original "RSSI" and "SNR" fields are not actually what they
+ * are called for MT76X0U, names used by this driver are educated guesses
+ * (see vendor mac/ral_omac.c).
+ */
+struct mt76x0_rxwi {
+ __le32 rxinfo;
+
+ __le32 ctl;
+
+ __le16 tid_sn;
+ __le16 rate;
+
+ s8 rssi[4];
+
+ __le32 bbp_rxinfo[4];
+} __packed __aligned(4);
+
+#define MT_RXINFO_BA BIT(0)
+#define MT_RXINFO_DATA BIT(1)
+#define MT_RXINFO_NULL BIT(2)
+#define MT_RXINFO_FRAG BIT(3)
+#define MT_RXINFO_U2M BIT(4)
+#define MT_RXINFO_MULTICAST BIT(5)
+#define MT_RXINFO_BROADCAST BIT(6)
+#define MT_RXINFO_MYBSS BIT(7)
+#define MT_RXINFO_CRCERR BIT(8)
+#define MT_RXINFO_ICVERR BIT(9)
+#define MT_RXINFO_MICERR BIT(10)
+#define MT_RXINFO_AMSDU BIT(11)
+#define MT_RXINFO_HTC BIT(12)
+#define MT_RXINFO_RSSI BIT(13)
+#define MT_RXINFO_L2PAD BIT(14)
+#define MT_RXINFO_AMPDU BIT(15)
+#define MT_RXINFO_DECRYPT BIT(16)
+#define MT_RXINFO_BSSIDX3 BIT(17)
+#define MT_RXINFO_WAPI_KEY BIT(18)
+#define MT_RXINFO_PN_LEN GENMASK(21, 19)
+#define MT_RXINFO_SW_PKT_80211 BIT(22)
+#define MT_RXINFO_TCP_SUM_BYPASS BIT(28)
+#define MT_RXINFO_IP_SUM_BYPASS BIT(29)
+#define MT_RXINFO_TCP_SUM_ERR BIT(30)
+#define MT_RXINFO_IP_SUM_ERR BIT(31)
+
+#define MT_RXWI_CTL_WCID GENMASK(7, 0)
+#define MT_RXWI_CTL_KEY_IDX GENMASK(9, 8)
+#define MT_RXWI_CTL_BSS_IDX GENMASK(12, 10)
+#define MT_RXWI_CTL_UDF GENMASK(15, 13)
+#define MT_RXWI_CTL_MPDU_LEN GENMASK(27, 16)
+#define MT_RXWI_CTL_TID GENMASK(31, 28)
+
+#define MT_RXWI_FRAG GENMASK(3, 0)
+#define MT_RXWI_SN GENMASK(15, 4)
+
+#define MT_RXWI_RATE_INDEX GENMASK(5, 0)
+#define MT_RXWI_RATE_LDPC BIT(6)
+#define MT_RXWI_RATE_BW GENMASK(8, 7)
+#define MT_RXWI_RATE_SGI BIT(9)
+#define MT_RXWI_RATE_STBC BIT(10)
+#define MT_RXWI_RATE_LDPC_ETXBF BIT(11)
+#define MT_RXWI_RATE_SND BIT(12)
+#define MT_RXWI_RATE_PHY GENMASK(15, 13)
+
+#define MT_RATE_INDEX_VHT_IDX GENMASK(3, 0)
+#define MT_RATE_INDEX_VHT_NSS GENMASK(5, 4)
+
+#define MT_RXWI_GAIN_RSSI_VAL GENMASK(5, 0)
+#define MT_RXWI_GAIN_RSSI_LNA_ID GENMASK(7, 6)
+#define MT_RXWI_ANT_AUX_LNA BIT(7)
+
+#define MT_RXWI_EANT_ENC_ANT_ID GENMASK(7, 0)
+
+enum mt76_phy_bandwidth {
+ MT_PHY_BW_20,
+ MT_PHY_BW_40,
+ MT_PHY_BW_80,
+};
+
+struct mt76_txwi {
+ __le16 flags;
+ __le16 rate_ctl;
+ u8 ack_ctl;
+ u8 wcid;
+ __le16 len_ctl;
+ __le32 iv;
+ __le32 eiv;
+ u8 aid;
+ u8 txstream;
+ u8 ctl2;
+ u8 pktid;
+} __packed __aligned(4);
+
+#define MT_TXWI_FLAGS_FRAG BIT(0)
+#define MT_TXWI_FLAGS_MMPS BIT(1)
+#define MT_TXWI_FLAGS_CFACK BIT(2)
+#define MT_TXWI_FLAGS_TS BIT(3)
+#define MT_TXWI_FLAGS_AMPDU BIT(4)
+#define MT_TXWI_FLAGS_MPDU_DENSITY GENMASK(7, 5)
+#define MT_TXWI_FLAGS_TXOP GENMASK(9, 8)
+#define MT_TXWI_FLAGS_CWMIN GENMASK(12, 10)
+#define MT_TXWI_FLAGS_NO_RATE_FALLBACK BIT(13)
+#define MT_TXWI_FLAGS_TX_RPT BIT(14)
+#define MT_TXWI_FLAGS_TX_RATE_LUT BIT(15)
+
+#define MT_TXWI_RATE_MCS GENMASK(6, 0)
+#define MT_TXWI_RATE_BW BIT(7)
+#define MT_TXWI_RATE_SGI BIT(8)
+#define MT_TXWI_RATE_STBC GENMASK(10, 9)
+#define MT_TXWI_RATE_PHY_MODE GENMASK(15, 14)
+
+#define MT_TXWI_ACK_CTL_REQ BIT(0)
+#define MT_TXWI_ACK_CTL_NSEQ BIT(1)
+#define MT_TXWI_ACK_CTL_BA_WINDOW GENMASK(7, 2)
+
+#define MT_TXWI_LEN_BYTE_CNT GENMASK(11, 0)
+
+#define MT_TXWI_CTL_TX_POWER_ADJ GENMASK(3, 0)
+#define MT_TXWI_CTL_CHAN_CHECK_PKT BIT(4)
+#define MT_TXWI_CTL_PIFS_REV BIT(6)
+
+#define MT_TXWI_PKTID_PROBE BIT(7)
+
+u32 mt76_mac_process_rx(struct mt76x0_dev *dev, struct sk_buff *skb,
+ u8 *data, void *rxi);
+int mt76_mac_wcid_set_key(struct mt76x0_dev *dev, u8 idx,
+ struct ieee80211_key_conf *key);
+void mt76_mac_wcid_set_rate(struct mt76x0_dev *dev, struct mt76_wcid *wcid,
+ const struct ieee80211_tx_rate *rate);
+
+int mt76_mac_shared_key_setup(struct mt76x0_dev *dev, u8 vif_idx, u8 key_idx,
+ struct ieee80211_key_conf *key);
+u16 mt76_mac_tx_rate_val(struct mt76x0_dev *dev,
+ const struct ieee80211_tx_rate *rate, u8 *nss_val);
+struct mt76_tx_status
+mt76x0_mac_fetch_tx_status(struct mt76x0_dev *dev);
+void mt76_send_tx_status(struct mt76x0_dev *dev, struct mt76_tx_status *stat,
u8 *update);
+
+#endif
--
1.9.3
