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// SPDX-License-Identifier: ISC
/* Copyright (C) 2019 MediaTek Inc.
*
* Author: Roy Luo <royluo@google.com>
* Ryder Lee <ryder.lee@mediatek.com>
* Felix Fietkau <nbd@nbd.name>
*/
#include <linux/etherdevice.h>
#include "mt7615.h"
#include "mac.h"
#include "eeprom.h"
static void mt7615_phy_init(struct mt7615_dev *dev)
{
/* disable band 0 rf low power beacon mode */
mt76_rmw(dev, MT_WF_PHY_WF2_RFCTRL0, MT_WF_PHY_WF2_RFCTRL0_LPBCN_EN,
MT_WF_PHY_WF2_RFCTRL0_LPBCN_EN);
}
static void mt7615_mac_init(struct mt7615_dev *dev)
{
u32 val, mask, set;
int i;
/* enable band 0/1 clk */
mt76_set(dev, MT_CFG_CCR,
MT_CFG_CCR_MAC_D0_1X_GC_EN | MT_CFG_CCR_MAC_D0_2X_GC_EN |
MT_CFG_CCR_MAC_D1_1X_GC_EN | MT_CFG_CCR_MAC_D1_2X_GC_EN);
val = mt76_rmw(dev, MT_TMAC_TRCR0,
MT_TMAC_TRCR_CCA_SEL | MT_TMAC_TRCR_SEC_CCA_SEL,
FIELD_PREP(MT_TMAC_TRCR_CCA_SEL, 2) |
FIELD_PREP(MT_TMAC_TRCR_SEC_CCA_SEL, 0));
mt76_wr(dev, MT_TMAC_TRCR1, val);
val = MT_AGG_ACR_PKT_TIME_EN | MT_AGG_ACR_NO_BA_AR_RULE |
FIELD_PREP(MT_AGG_ACR_CFEND_RATE, 0x49) | /* 24M */
FIELD_PREP(MT_AGG_ACR_BAR_RATE, 0x4b); /* 6M */
mt76_wr(dev, MT_AGG_ACR0, val);
mt76_wr(dev, MT_AGG_ACR1, val);
mt76_rmw_field(dev, MT_TMAC_CTCR0,
MT_TMAC_CTCR0_INS_DDLMT_REFTIME, 0x3f);
mt76_rmw_field(dev, MT_TMAC_CTCR0,
MT_TMAC_CTCR0_INS_DDLMT_DENSITY, 0x3);
mt76_rmw(dev, MT_TMAC_CTCR0,
MT_TMAC_CTCR0_INS_DDLMT_VHT_SMPDU_EN |
MT_TMAC_CTCR0_INS_DDLMT_EN,
MT_TMAC_CTCR0_INS_DDLMT_VHT_SMPDU_EN |
MT_TMAC_CTCR0_INS_DDLMT_EN);
mt7615_mcu_set_rts_thresh(dev, 0x92b);
mt7615_mac_set_scs(dev, true);
mt76_rmw(dev, MT_AGG_SCR, MT_AGG_SCR_NLNAV_MID_PTEC_DIS,
MT_AGG_SCR_NLNAV_MID_PTEC_DIS);
mt7615_mcu_init_mac(dev);
mt76_wr(dev, MT_DMA_DCR0, MT_DMA_DCR0_RX_VEC_DROP |
FIELD_PREP(MT_DMA_DCR0_MAX_RX_LEN, 3072));
mt76_wr(dev, MT_AGG_ARUCR,
FIELD_PREP(MT_AGG_ARxCR_LIMIT(0), 7) |
FIELD_PREP(MT_AGG_ARxCR_LIMIT(1), 2) |
FIELD_PREP(MT_AGG_ARxCR_LIMIT(2), 2) |
FIELD_PREP(MT_AGG_ARxCR_LIMIT(3), 2) |
FIELD_PREP(MT_AGG_ARxCR_LIMIT(4), 1) |
FIELD_PREP(MT_AGG_ARxCR_LIMIT(5), 1) |
FIELD_PREP(MT_AGG_ARxCR_LIMIT(6), 1) |
FIELD_PREP(MT_AGG_ARxCR_LIMIT(7), 1));
mt76_wr(dev, MT_AGG_ARDCR,
FIELD_PREP(MT_AGG_ARxCR_LIMIT(0), MT7615_RATE_RETRY - 1) |
FIELD_PREP(MT_AGG_ARxCR_LIMIT(1), MT7615_RATE_RETRY - 1) |
FIELD_PREP(MT_AGG_ARxCR_LIMIT(2), MT7615_RATE_RETRY - 1) |
FIELD_PREP(MT_AGG_ARxCR_LIMIT(3), MT7615_RATE_RETRY - 1) |
FIELD_PREP(MT_AGG_ARxCR_LIMIT(4), MT7615_RATE_RETRY - 1) |
FIELD_PREP(MT_AGG_ARxCR_LIMIT(5), MT7615_RATE_RETRY - 1) |
FIELD_PREP(MT_AGG_ARxCR_LIMIT(6), MT7615_RATE_RETRY - 1) |
FIELD_PREP(MT_AGG_ARxCR_LIMIT(7), MT7615_RATE_RETRY - 1));
mt76_wr(dev, MT_AGG_ARCR,
(FIELD_PREP(MT_AGG_ARCR_RTS_RATE_THR, 2) |
MT_AGG_ARCR_RATE_DOWN_RATIO_EN |
FIELD_PREP(MT_AGG_ARCR_RATE_DOWN_RATIO, 1) |
FIELD_PREP(MT_AGG_ARCR_RATE_UP_EXTRA_TH, 4)));
mask = MT_DMA_RCFR0_MCU_RX_MGMT |
MT_DMA_RCFR0_MCU_RX_CTL_NON_BAR |
MT_DMA_RCFR0_MCU_RX_CTL_BAR |
MT_DMA_RCFR0_MCU_RX_BYPASS |
MT_DMA_RCFR0_RX_DROPPED_UCAST |
MT_DMA_RCFR0_RX_DROPPED_MCAST;
set = FIELD_PREP(MT_DMA_RCFR0_RX_DROPPED_UCAST, 2) |
FIELD_PREP(MT_DMA_RCFR0_RX_DROPPED_MCAST, 2);
mt76_rmw(dev, MT_DMA_BN0RCFR0, mask, set);
mt76_rmw(dev, MT_DMA_BN1RCFR0, mask, set);
for (i = 0; i < MT7615_WTBL_SIZE; i++)
mt7615_mac_wtbl_update(dev, i,
MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
mt76_set(dev, MT_WF_RMAC_MIB_TIME0, MT_WF_RMAC_MIB_RXTIME_EN);
mt76_set(dev, MT_WF_RMAC_MIB_AIRTIME0, MT_WF_RMAC_MIB_RXTIME_EN);
}
static int mt7615_init_hardware(struct mt7615_dev *dev)
{
int ret, idx;
mt76_wr(dev, MT_INT_SOURCE_CSR, ~0);
spin_lock_init(&dev->token_lock);
idr_init(&dev->token);
ret = mt7615_eeprom_init(dev);
if (ret < 0)
return ret;
ret = mt7615_dma_init(dev);
if (ret)
return ret;
set_bit(MT76_STATE_INITIALIZED, &dev->mt76.state);
ret = mt7615_mcu_init(dev);
if (ret)
return ret;
mt7615_mcu_set_eeprom(dev);
mt7615_mac_init(dev);
mt7615_phy_init(dev);
mt7615_mcu_ctrl_pm_state(dev, 0);
mt7615_mcu_del_wtbl_all(dev);
/* Beacon and mgmt frames should occupy wcid 0 */
idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7615_WTBL_STA - 1);
if (idx)
return -ENOSPC;
dev->mt76.global_wcid.idx = idx;
dev->mt76.global_wcid.hw_key_idx = -1;
rcu_assign_pointer(dev->mt76.wcid[idx], &dev->mt76.global_wcid);
return 0;
}
#define CCK_RATE(_idx, _rate) { \
.bitrate = _rate, \
.flags = IEEE80211_RATE_SHORT_PREAMBLE, \
.hw_value = (MT_PHY_TYPE_CCK << 8) | (_idx), \
.hw_value_short = (MT_PHY_TYPE_CCK << 8) | (4 + (_idx)), \
}
#define OFDM_RATE(_idx, _rate) { \
.bitrate = _rate, \
.hw_value = (MT_PHY_TYPE_OFDM << 8) | (_idx), \
.hw_value_short = (MT_PHY_TYPE_OFDM << 8) | (_idx), \
}
static struct ieee80211_rate mt7615_rates[] = {
CCK_RATE(0, 10),
CCK_RATE(1, 20),
CCK_RATE(2, 55),
CCK_RATE(3, 110),
OFDM_RATE(11, 60),
OFDM_RATE(15, 90),
OFDM_RATE(10, 120),
OFDM_RATE(14, 180),
OFDM_RATE(9, 240),
OFDM_RATE(13, 360),
OFDM_RATE(8, 480),
OFDM_RATE(12, 540),
};
static const struct ieee80211_iface_limit if_limits[] = {
{
.max = 1,
.types = BIT(NL80211_IFTYPE_ADHOC)
}, {
.max = MT7615_MAX_INTERFACES,
.types = BIT(NL80211_IFTYPE_AP) |
#ifdef CONFIG_MAC80211_MESH
BIT(NL80211_IFTYPE_MESH_POINT) |
#endif
BIT(NL80211_IFTYPE_STATION)
}
};
static const struct ieee80211_iface_combination if_comb[] = {
{
.limits = if_limits,
.n_limits = ARRAY_SIZE(if_limits),
.max_interfaces = 4,
.num_different_channels = 1,
.beacon_int_infra_match = true,
}
};
static void
mt7615_init_txpower(struct mt7615_dev *dev,
struct ieee80211_supported_band *sband)
{
int i, n_chains = hweight8(dev->mt76.antenna_mask), target_chains;
u8 *eep = (u8 *)dev->mt76.eeprom.data;
enum nl80211_band band = sband->band;
target_chains = mt7615_ext_pa_enabled(dev, band) ? 1 : n_chains;
for (i = 0; i < sband->n_channels; i++) {
struct ieee80211_channel *chan = &sband->channels[i];
u8 target_power = 0;
int j;
for (j = 0; j < target_chains; j++) {
int index;
index = mt7615_eeprom_get_power_index(dev, chan, j);
target_power = max(target_power, eep[index]);
}
target_power = DIV_ROUND_UP(target_power, 2);
switch (n_chains) {
case 4:
target_power += 6;
break;
case 3:
target_power += 4;
break;
case 2:
target_power += 3;
break;
default:
break;
}
chan->max_power = min_t(int, chan->max_reg_power,
target_power);
chan->orig_mpwr = target_power;
}
}
static void
mt7615_regd_notifier(struct wiphy *wiphy,
struct regulatory_request *request)
{
struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
struct mt7615_dev *dev = hw->priv;
struct cfg80211_chan_def *chandef = &dev->mt76.chandef;
if (request->dfs_region == dev->mt76.region)
return;
dev->mt76.region = request->dfs_region;
if (!(chandef->chan->flags & IEEE80211_CHAN_RADAR))
return;
mt7615_dfs_stop_radar_detector(dev);
if (request->dfs_region == NL80211_DFS_UNSET)
mt7615_mcu_rdd_cmd(dev, RDD_CAC_END, MT_HW_RDD0,
MT_RX_SEL0, 0);
else
mt7615_dfs_start_radar_detector(dev);
}
int mt7615_register_device(struct mt7615_dev *dev)
{
struct ieee80211_hw *hw = mt76_hw(dev);
struct wiphy *wiphy = hw->wiphy;
int ret;
INIT_DELAYED_WORK(&dev->mt76.mac_work, mt7615_mac_work);
INIT_LIST_HEAD(&dev->sta_poll_list);
spin_lock_init(&dev->sta_poll_lock);
ret = mt7615_init_hardware(dev);
if (ret)
return ret;
hw->queues = 4;
hw->max_rates = 3;
hw->max_report_rates = 7;
hw->max_rate_tries = 11;
hw->sta_data_size = sizeof(struct mt7615_sta);
hw->vif_data_size = sizeof(struct mt7615_vif);
wiphy->iface_combinations = if_comb;
wiphy->n_iface_combinations = ARRAY_SIZE(if_comb);
wiphy->reg_notifier = mt7615_regd_notifier;
wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
ieee80211_hw_set(hw, TX_STATUS_NO_AMPDU_LEN);
dev->mt76.sband_2g.sband.ht_cap.cap |= IEEE80211_HT_CAP_LDPC_CODING;
dev->mt76.sband_5g.sband.ht_cap.cap |= IEEE80211_HT_CAP_LDPC_CODING;
dev->mt76.sband_5g.sband.vht_cap.cap |=
IEEE80211_VHT_CAP_SHORT_GI_160 |
IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ;
dev->dfs_state = -1;
ret = mt76_register_device(&dev->mt76, true, mt7615_rates,
ARRAY_SIZE(mt7615_rates));
if (ret)
return ret;
mt7615_init_txpower(dev, &dev->mt76.sband_2g.sband);
mt7615_init_txpower(dev, &dev->mt76.sband_5g.sband);
hw->max_tx_fragments = MT_TXP_MAX_BUF_NUM;
return mt7615_init_debugfs(dev);
}
void mt7615_unregister_device(struct mt7615_dev *dev)
{
struct mt76_txwi_cache *txwi;
int id;
mt76_unregister_device(&dev->mt76);
mt7615_mcu_exit(dev);
mt7615_dma_cleanup(dev);
spin_lock_bh(&dev->token_lock);
idr_for_each_entry(&dev->token, txwi, id) {
mt7615_txp_skb_unmap(&dev->mt76, txwi);
if (txwi->skb)
dev_kfree_skb_any(txwi->skb);
mt76_put_txwi(&dev->mt76, txwi);
}
spin_unlock_bh(&dev->token_lock);
idr_destroy(&dev->token);
mt76_free_device(&dev->mt76);
}
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