Orange Pi5 kernel

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (C) 2014 Felix Fietkau <nbd@openwrt.org>
 * Copyright (C) 2015 Jakub Kicinski <kubakici@wp.pl>
 */
 
#include "mt7601u.h"
#include "trace.h"
#include <linux/etherdevice.h>
 
void mt7601u_set_macaddr(struct mt7601u_dev *dev, const u8 *addr)
{
<------>ether_addr_copy(dev->macaddr, addr);
 
<------>if (!is_valid_ether_addr(dev->macaddr)) {
<------><------>eth_random_addr(dev->macaddr);
<------><------>dev_info(dev->dev,
<------><------><------> "Invalid MAC address, using random address %pM\n",
<------><------><------> dev->macaddr);
<------>}
 
<------>mt76_wr(dev, MT_MAC_ADDR_DW0, get_unaligned_le32(dev->macaddr));
<------>mt76_wr(dev, MT_MAC_ADDR_DW1, get_unaligned_le16(dev->macaddr + 4) |
<------><------>FIELD_PREP(MT_MAC_ADDR_DW1_U2ME_MASK, 0xff));
}
 
static void
mt76_mac_process_tx_rate(struct ieee80211_tx_rate *txrate, u16 rate)
{
<------>u8 idx = FIELD_GET(MT_TXWI_RATE_MCS, rate);
 
<------>txrate->idx = 0;
<------>txrate->flags = 0;
<------>txrate->count = 1;
 
<------>switch (FIELD_GET(MT_TXWI_RATE_PHY_MODE, rate)) {
<------>case MT_PHY_TYPE_OFDM:
<------><------>txrate->idx = idx + 4;
<------><------>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;
<------><------>fallthrough;
<------>case MT_PHY_TYPE_HT:
<------><------>txrate->flags |= IEEE80211_TX_RC_MCS;
<------><------>txrate->idx = idx;
<------><------>break;
<------>default:
<------><------>WARN_ON(1);
<------><------>return;
<------>}
 
<------>if (FIELD_GET(MT_TXWI_RATE_BW, rate) == MT_PHY_BW_40)
<------><------>txrate->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH;
 
<------>if (rate & MT_TXWI_RATE_SGI)
<------><------>txrate->flags |= IEEE80211_TX_RC_SHORT_GI;
}
 
static void
mt76_mac_fill_tx_status(struct mt7601u_dev *dev, struct ieee80211_tx_info *info,
<------><------><------>struct mt76_tx_status *st)
{
<------>struct ieee80211_tx_rate *rate = info->status.rates;
<------>int cur_idx, last_rate;
<------>int i;
 
<------>last_rate = min_t(int, st->retry, IEEE80211_TX_MAX_RATES - 1);
<------>mt76_mac_process_tx_rate(&rate[last_rate], st->rate);
<------>if (last_rate < IEEE80211_TX_MAX_RATES - 1)
<------><------>rate[last_rate + 1].idx = -1;
 
<------>cur_idx = rate[last_rate].idx + st->retry;
<------>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;
<------>}
 
<------>if (last_rate > 0)
<------><------>rate[last_rate - 1].count = st->retry + 1 - last_rate;
 
<------>info->status.ampdu_len = 1;
<------>info->status.ampdu_ack_len = st->success;
 
<------>if (st->is_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 mt7601u_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_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->chandef.chan->band;
<------><------>u16 val;
 
<------><------>r = &dev->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_MCS, 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 rateval;
}
 
void mt76_mac_wcid_set_rate(struct mt7601u_dev *dev, struct mt76_wcid *wcid,
<------><------><------>    const struct ieee80211_tx_rate *rate)
{
<------>unsigned long flags;
 
<------>spin_lock_irqsave(&dev->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->lock, flags);
}
 
struct mt76_tx_status mt7601u_mac_fetch_tx_status(struct mt7601u_dev *dev)
{
<------>struct mt76_tx_status stat = {};
<------>u32 val;
 
<------>val = mt7601u_rr(dev, MT_TX_STAT_FIFO);
<------>stat.valid = !!(val & MT_TX_STAT_FIFO_VALID);
<------>stat.success = !!(val & MT_TX_STAT_FIFO_SUCCESS);
<------>stat.aggr = !!(val & MT_TX_STAT_FIFO_AGGR);
<------>stat.ack_req = !!(val & MT_TX_STAT_FIFO_ACKREQ);
<------>stat.pktid = FIELD_GET(MT_TX_STAT_FIFO_PID_TYPE, val);
<------>stat.wcid = FIELD_GET(MT_TX_STAT_FIFO_WCID, val);
<------>stat.rate = FIELD_GET(MT_TX_STAT_FIFO_RATE, val);
 
<------>return stat;
}
 
void mt76_send_tx_status(struct mt7601u_dev *dev, struct mt76_tx_status *stat)
{
<------>struct ieee80211_tx_info info = {};
<------>struct ieee80211_sta *sta = NULL;
<------>struct mt76_wcid *wcid = NULL;
<------>void *msta;
 
<------>rcu_read_lock();
<------>if (stat->wcid < ARRAY_SIZE(dev->wcid))
<------><------>wcid = rcu_dereference(dev->wcid[stat->wcid]);
 
<------>if (wcid) {
<------><------>msta = container_of(wcid, struct mt76_sta, wcid);
<------><------>sta = container_of(msta, struct ieee80211_sta,
<------><------><------><------>   drv_priv);
<------>}
 
<------>mt76_mac_fill_tx_status(dev, &info, stat);
 
<------>spin_lock_bh(&dev->mac_lock);
<------>ieee80211_tx_status_noskb(dev->hw, sta, &info);
<------>spin_unlock_bh(&dev->mac_lock);
 
<------>rcu_read_unlock();
}
 
void mt7601u_mac_set_protection(struct mt7601u_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++)
<------><------>mt7601u_wr(dev, MT_CCK_PROT_CFG + i * 4, prot[i]);
}
 
void mt7601u_mac_set_short_preamble(struct mt7601u_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 mt7601u_mac_config_tsf(struct mt7601u_dev *dev, bool enable, int interval)
{
<------>u32 val = mt7601u_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) {
<------><------>mt7601u_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 mt7601u_check_mac_err(struct mt7601u_dev *dev)
{
<------>u32 val = mt7601u_rr(dev, 0x10f4);
 
<------>if (!(val & BIT(29)) || !(val & (BIT(7) | BIT(5))))
<------><------>return;
 
<------>dev_err(dev->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 mt7601u_mac_work(struct work_struct *work)
{
<------>struct mt7601u_dev *dev = container_of(work, struct mt7601u_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 = mt7601u_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);
 
<------>mt7601u_check_mac_err(dev);
 
<------>ieee80211_queue_delayed_work(dev->hw, &dev->mac_work, 10 * HZ);
}
 
void
mt7601u_mac_wcid_setup(struct mt7601u_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));
 
<------>mt7601u_addr_wr(dev, MT_WCID_ADDR(idx), zmac);
}
 
void mt7601u_mac_set_ampdu_factor(struct mt7601u_dev *dev)
{
<------>struct ieee80211_sta *sta;
<------>struct mt76_wcid *wcid;
<------>void *msta;
<------>u8 min_factor = 3;
<------>int i;
 
<------>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();
 
<------>mt7601u_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_MCS, rate);
 
<------>switch (FIELD_GET(MT_RXWI_RATE_PHY, rate)) {
<------>case MT_PHY_TYPE_OFDM:
<------><------>if (WARN_ON(idx >= 8))
<------><------><------>idx = 0;
<------><------>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 (WARN_ON(idx >= 4))
<------><------><------>idx = 0;
 
<------><------>status->rate_idx = idx;
<------><------>return;
<------>case MT_PHY_TYPE_HT_GF:
<------><------>status->enc_flags |= RX_ENC_FLAG_HT_GF;
<------><------>fallthrough;
<------>case MT_PHY_TYPE_HT:
<------><------>status->encoding = RX_ENC_HT;
<------><------>status->rate_idx = idx;
<------><------>break;
<------>default:
<------><------>WARN_ON(1);
<------><------>return;
<------>}
 
<------>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;
 
<------>if (rate & MT_RXWI_RATE_BW)
<------><------>status->bw = RATE_INFO_BW_40;
}
 
static void
mt7601u_rx_monitor_beacon(struct mt7601u_dev *dev, struct mt7601u_rxwi *rxwi,
<------><------><------>  u16 rate, int rssi)
{
<------>dev->bcn_freq_off = rxwi->freq_off;
<------>dev->bcn_phy_mode = FIELD_GET(MT_RXWI_RATE_PHY, rate);
<------>ewma_rssi_add(&dev->avg_rssi, -rssi);
}
 
static int
mt7601u_rx_is_our_beacon(struct mt7601u_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 mt7601u_dev *dev, struct sk_buff *skb,
<------><------><------>u8 *data, void *rxi)
{
<------>struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
<------>struct mt7601u_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 (len < 10)
<------><------>return 0;
 
<------>if (rxwi->rxinfo & cpu_to_le32(MT_RXINFO_DECRYPT)) {
<------><------>status->flag |= RX_FLAG_DECRYPTED;
<------><------>status->flag |= RX_FLAG_MMIC_STRIPPED;
<------><------>status->flag |= RX_FLAG_MIC_STRIPPED;
<------><------>status->flag |= RX_FLAG_ICV_STRIPPED;
<------><------>status->flag |= RX_FLAG_IV_STRIPPED;
<------>}
<------>/* let mac80211 take care of PN validation since apparently
<------> * the hardware does not support it
<------> */
<------>if (rxwi->rxinfo & cpu_to_le32(MT_RXINFO_PN_LEN))
<------><------>status->flag &= ~RX_FLAG_IV_STRIPPED;
 
<------>status->chains = BIT(0);
<------>rssi = mt7601u_phy_get_rssi(dev, rxwi, rate);
<------>status->chain_signal[0] = status->signal = rssi;
<------>status->freq = dev->chandef.chan->center_freq;
<------>status->band = dev->chandef.chan->band;
 
<------>mt76_mac_process_rate(status, rate);
 
<------>spin_lock_bh(&dev->con_mon_lock);
<------>if (mt7601u_rx_is_our_beacon(dev, data))
<------><------>mt7601u_rx_monitor_beacon(dev, rxwi, rate, rssi);
<------>else if (rxwi->rxinfo & cpu_to_le32(MT_RXINFO_U2M))
<------><------>ewma_rssi_add(&dev->avg_rssi, -rssi);
<------>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 mt7601u_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, idx);
 
<------>mt7601u_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;
<------><------>}
<------>}
<------>mt7601u_wr_copy(dev, MT_WCID_IV(idx), iv_data, sizeof(iv_data));
 
<------>val = mt7601u_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);
<------>mt7601u_wr(dev, MT_WCID_ATTR(idx), val);
 
<------>return 0;
}
 
int mt76_mac_shared_key_setup(struct mt7601u_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, vif_idx, key_idx);
 
<------>mt7601u_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;
}