427 lines
12 KiB
C
427 lines
12 KiB
C
// SPDX-License-Identifier: ISC
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/* Copyright (C) 2020 MediaTek Inc. */
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#include <linux/etherdevice.h>
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#include <linux/firmware.h>
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#include "mt7921.h"
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#include "mac.h"
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#include "mcu.h"
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#include "eeprom.h"
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static const struct ieee80211_iface_limit if_limits[] = {
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{
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.max = MT7921_MAX_INTERFACES,
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.types = BIT(NL80211_IFTYPE_STATION)
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},
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{
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.max = 1,
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.types = BIT(NL80211_IFTYPE_AP)
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}
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};
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static const struct ieee80211_iface_combination if_comb[] = {
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{
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.limits = if_limits,
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.n_limits = ARRAY_SIZE(if_limits),
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.max_interfaces = MT7921_MAX_INTERFACES,
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.num_different_channels = 1,
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.beacon_int_infra_match = true,
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},
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};
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static const struct ieee80211_iface_limit if_limits_chanctx[] = {
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{
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.max = 2,
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.types = BIT(NL80211_IFTYPE_STATION),
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},
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{
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.max = 1,
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.types = BIT(NL80211_IFTYPE_AP),
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}
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};
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static const struct ieee80211_iface_combination if_comb_chanctx[] = {
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{
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.limits = if_limits_chanctx,
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.n_limits = ARRAY_SIZE(if_limits_chanctx),
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.max_interfaces = 2,
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.num_different_channels = 2,
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.beacon_int_infra_match = false,
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}
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};
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static void
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mt7921_regd_notifier(struct wiphy *wiphy,
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struct regulatory_request *request)
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{
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struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
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struct mt7921_dev *dev = mt7921_hw_dev(hw);
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memcpy(dev->mt76.alpha2, request->alpha2, sizeof(dev->mt76.alpha2));
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dev->mt76.region = request->dfs_region;
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dev->country_ie_env = request->country_ie_env;
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mt7921_mutex_acquire(dev);
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mt7921_mcu_set_clc(dev, request->alpha2, request->country_ie_env);
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mt76_connac_mcu_set_channel_domain(hw->priv);
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mt7921_set_tx_sar_pwr(hw, NULL);
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mt7921_mutex_release(dev);
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}
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static int
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mt7921_init_wiphy(struct ieee80211_hw *hw)
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{
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struct mt7921_phy *phy = mt7921_hw_phy(hw);
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struct mt7921_dev *dev = phy->dev;
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struct wiphy *wiphy = hw->wiphy;
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hw->queues = 4;
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hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE;
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hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE;
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hw->netdev_features = NETIF_F_RXCSUM;
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hw->radiotap_timestamp.units_pos =
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IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US;
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phy->slottime = 9;
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hw->sta_data_size = sizeof(struct mt7921_sta);
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hw->vif_data_size = sizeof(struct mt7921_vif);
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if (dev->fw_features & MT7921_FW_CAP_CNM) {
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wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
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wiphy->iface_combinations = if_comb_chanctx;
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wiphy->n_iface_combinations = ARRAY_SIZE(if_comb_chanctx);
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} else {
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wiphy->flags &= ~WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
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wiphy->iface_combinations = if_comb;
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wiphy->n_iface_combinations = ARRAY_SIZE(if_comb);
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}
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wiphy->flags &= ~(WIPHY_FLAG_IBSS_RSN | WIPHY_FLAG_4ADDR_AP |
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WIPHY_FLAG_4ADDR_STATION);
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wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
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BIT(NL80211_IFTYPE_AP);
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wiphy->max_remain_on_channel_duration = 5000;
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wiphy->max_scan_ie_len = MT76_CONNAC_SCAN_IE_LEN;
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wiphy->max_scan_ssids = 4;
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wiphy->max_sched_scan_plan_interval =
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MT76_CONNAC_MAX_TIME_SCHED_SCAN_INTERVAL;
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wiphy->max_sched_scan_ie_len = IEEE80211_MAX_DATA_LEN;
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wiphy->max_sched_scan_ssids = MT76_CONNAC_MAX_SCHED_SCAN_SSID;
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wiphy->max_match_sets = MT76_CONNAC_MAX_SCAN_MATCH;
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wiphy->max_sched_scan_reqs = 1;
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wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
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wiphy->reg_notifier = mt7921_regd_notifier;
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wiphy->features |= NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
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NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
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wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_SET_SCAN_DWELL);
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wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BEACON_RATE_LEGACY);
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wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BEACON_RATE_HT);
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wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BEACON_RATE_VHT);
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wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BEACON_RATE_HE);
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wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_ACK_SIGNAL_SUPPORT);
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ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
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ieee80211_hw_set(hw, HAS_RATE_CONTROL);
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ieee80211_hw_set(hw, SUPPORTS_TX_ENCAP_OFFLOAD);
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ieee80211_hw_set(hw, SUPPORTS_RX_DECAP_OFFLOAD);
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ieee80211_hw_set(hw, WANT_MONITOR_VIF);
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ieee80211_hw_set(hw, SUPPORTS_PS);
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ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
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ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW);
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ieee80211_hw_set(hw, CONNECTION_MONITOR);
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if (dev->pm.enable)
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ieee80211_hw_set(hw, CONNECTION_MONITOR);
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hw->max_tx_fragments = 4;
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return 0;
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}
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static void
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mt7921_mac_init_band(struct mt7921_dev *dev, u8 band)
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{
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u32 mask, set;
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mt76_rmw_field(dev, MT_TMAC_CTCR0(band),
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MT_TMAC_CTCR0_INS_DDLMT_REFTIME, 0x3f);
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mt76_set(dev, MT_TMAC_CTCR0(band),
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MT_TMAC_CTCR0_INS_DDLMT_VHT_SMPDU_EN |
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MT_TMAC_CTCR0_INS_DDLMT_EN);
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mt76_set(dev, MT_WF_RMAC_MIB_TIME0(band), MT_WF_RMAC_MIB_RXTIME_EN);
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mt76_set(dev, MT_WF_RMAC_MIB_AIRTIME0(band), MT_WF_RMAC_MIB_RXTIME_EN);
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/* enable MIB tx-rx time reporting */
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mt76_set(dev, MT_MIB_SCR1(band), MT_MIB_TXDUR_EN);
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mt76_set(dev, MT_MIB_SCR1(band), MT_MIB_RXDUR_EN);
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mt76_rmw_field(dev, MT_DMA_DCR0(band), MT_DMA_DCR0_MAX_RX_LEN, 1536);
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/* disable rx rate report by default due to hw issues */
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mt76_clear(dev, MT_DMA_DCR0(band), MT_DMA_DCR0_RXD_G5_EN);
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/* filter out non-resp frames and get instantaneous signal reporting */
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mask = MT_WTBLOFF_TOP_RSCR_RCPI_MODE | MT_WTBLOFF_TOP_RSCR_RCPI_PARAM;
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set = FIELD_PREP(MT_WTBLOFF_TOP_RSCR_RCPI_MODE, 0) |
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FIELD_PREP(MT_WTBLOFF_TOP_RSCR_RCPI_PARAM, 0x3);
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mt76_rmw(dev, MT_WTBLOFF_TOP_RSCR(band), mask, set);
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}
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u8 mt7921_check_offload_capability(struct device *dev, const char *fw_wm)
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{
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const struct mt76_connac2_fw_trailer *hdr;
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struct mt7921_realease_info *rel_info;
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const struct firmware *fw;
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int ret, i, offset = 0;
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const u8 *data, *end;
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u8 offload_caps = 0;
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ret = request_firmware(&fw, fw_wm, dev);
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if (ret)
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return ret;
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if (!fw || !fw->data || fw->size < sizeof(*hdr)) {
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dev_err(dev, "Invalid firmware\n");
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goto out;
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}
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data = fw->data;
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hdr = (const void *)(fw->data + fw->size - sizeof(*hdr));
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for (i = 0; i < hdr->n_region; i++) {
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const struct mt76_connac2_fw_region *region;
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region = (const void *)((const u8 *)hdr -
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(hdr->n_region - i) * sizeof(*region));
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offset += le32_to_cpu(region->len);
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}
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data += offset + 16;
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rel_info = (struct mt7921_realease_info *)data;
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data += sizeof(*rel_info);
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end = data + le16_to_cpu(rel_info->len);
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while (data < end) {
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rel_info = (struct mt7921_realease_info *)data;
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data += sizeof(*rel_info);
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if (rel_info->tag == MT7921_FW_TAG_FEATURE) {
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struct mt7921_fw_features *features;
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features = (struct mt7921_fw_features *)data;
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offload_caps = features->data;
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break;
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}
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data += le16_to_cpu(rel_info->len) + rel_info->pad_len;
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}
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out:
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release_firmware(fw);
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return offload_caps;
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}
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EXPORT_SYMBOL_GPL(mt7921_check_offload_capability);
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int mt7921_mac_init(struct mt7921_dev *dev)
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{
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int i;
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mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536);
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/* enable hardware de-agg */
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mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN);
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/* enable hardware rx header translation */
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mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_RX_HDR_TRANS_EN);
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for (i = 0; i < MT7921_WTBL_SIZE; i++)
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mt7921_mac_wtbl_update(dev, i,
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MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
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for (i = 0; i < 2; i++)
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mt7921_mac_init_band(dev, i);
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return mt76_connac_mcu_set_rts_thresh(&dev->mt76, 0x92b, 0);
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}
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EXPORT_SYMBOL_GPL(mt7921_mac_init);
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static int __mt7921_init_hardware(struct mt7921_dev *dev)
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{
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int ret;
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/* force firmware operation mode into normal state,
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* which should be set before firmware download stage.
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*/
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mt76_wr(dev, MT_SWDEF_MODE, MT_SWDEF_NORMAL_MODE);
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ret = mt7921_mcu_init(dev);
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if (ret)
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goto out;
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mt76_eeprom_override(&dev->mphy);
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ret = mt7921_mcu_set_eeprom(dev);
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if (ret)
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goto out;
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ret = mt7921_mac_init(dev);
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out:
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return ret;
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}
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static int mt7921_init_hardware(struct mt7921_dev *dev)
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{
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int ret, i;
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set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
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for (i = 0; i < MT7921_MCU_INIT_RETRY_COUNT; i++) {
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ret = __mt7921_init_hardware(dev);
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if (!ret)
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break;
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mt7921_init_reset(dev);
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}
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if (i == MT7921_MCU_INIT_RETRY_COUNT) {
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dev_err(dev->mt76.dev, "hardware init failed\n");
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return ret;
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}
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return 0;
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}
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static int mt7921_init_wcid(struct mt7921_dev *dev)
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{
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int idx;
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/* Beacon and mgmt frames should occupy wcid 0 */
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idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA - 1);
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if (idx)
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return -ENOSPC;
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dev->mt76.global_wcid.idx = idx;
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dev->mt76.global_wcid.hw_key_idx = -1;
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dev->mt76.global_wcid.tx_info |= MT_WCID_TX_INFO_SET;
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rcu_assign_pointer(dev->mt76.wcid[idx], &dev->mt76.global_wcid);
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return 0;
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}
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static void mt7921_init_work(struct work_struct *work)
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{
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struct mt7921_dev *dev = container_of(work, struct mt7921_dev,
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init_work);
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int ret;
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ret = mt7921_init_hardware(dev);
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if (ret)
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return;
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mt76_set_stream_caps(&dev->mphy, true);
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mt7921_set_stream_he_caps(&dev->phy);
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ret = mt76_register_device(&dev->mt76, true, mt76_rates,
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ARRAY_SIZE(mt76_rates));
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if (ret) {
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dev_err(dev->mt76.dev, "register device failed\n");
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return;
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}
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ret = mt7921_init_debugfs(dev);
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if (ret) {
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dev_err(dev->mt76.dev, "register debugfs failed\n");
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return;
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}
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/* we support chip reset now */
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dev->hw_init_done = true;
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mt76_connac_mcu_set_deep_sleep(&dev->mt76, dev->pm.ds_enable);
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}
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int mt7921_register_device(struct mt7921_dev *dev)
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{
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struct ieee80211_hw *hw = mt76_hw(dev);
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int ret;
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dev->phy.dev = dev;
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dev->phy.mt76 = &dev->mt76.phy;
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dev->mt76.phy.priv = &dev->phy;
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dev->mt76.tx_worker.fn = mt7921_tx_worker;
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INIT_DELAYED_WORK(&dev->pm.ps_work, mt7921_pm_power_save_work);
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INIT_WORK(&dev->pm.wake_work, mt7921_pm_wake_work);
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spin_lock_init(&dev->pm.wake.lock);
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mutex_init(&dev->pm.mutex);
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init_waitqueue_head(&dev->pm.wait);
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if (mt76_is_sdio(&dev->mt76))
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init_waitqueue_head(&dev->mt76.sdio.wait);
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spin_lock_init(&dev->pm.txq_lock);
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INIT_DELAYED_WORK(&dev->mphy.mac_work, mt7921_mac_work);
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INIT_DELAYED_WORK(&dev->phy.scan_work, mt7921_scan_work);
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INIT_DELAYED_WORK(&dev->coredump.work, mt7921_coredump_work);
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#if IS_ENABLED(CONFIG_IPV6)
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INIT_WORK(&dev->ipv6_ns_work, mt7921_set_ipv6_ns_work);
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skb_queue_head_init(&dev->ipv6_ns_list);
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#endif
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skb_queue_head_init(&dev->phy.scan_event_list);
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skb_queue_head_init(&dev->coredump.msg_list);
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INIT_LIST_HEAD(&dev->sta_poll_list);
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spin_lock_init(&dev->sta_poll_lock);
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INIT_WORK(&dev->reset_work, mt7921_mac_reset_work);
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INIT_WORK(&dev->init_work, mt7921_init_work);
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INIT_WORK(&dev->phy.roc_work, mt7921_roc_work);
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timer_setup(&dev->phy.roc_timer, mt7921_roc_timer, 0);
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init_waitqueue_head(&dev->phy.roc_wait);
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dev->pm.idle_timeout = MT7921_PM_TIMEOUT;
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dev->pm.stats.last_wake_event = jiffies;
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dev->pm.stats.last_doze_event = jiffies;
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if (!mt76_is_usb(&dev->mt76)) {
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dev->pm.enable_user = true;
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dev->pm.enable = true;
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dev->pm.ds_enable_user = true;
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dev->pm.ds_enable = true;
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}
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if (!mt76_is_mmio(&dev->mt76))
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hw->extra_tx_headroom += MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE;
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mt7921_init_acpi_sar(dev);
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ret = mt7921_init_wcid(dev);
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if (ret)
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return ret;
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ret = mt7921_init_wiphy(hw);
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if (ret)
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return ret;
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dev->mphy.sband_2g.sband.ht_cap.cap |=
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IEEE80211_HT_CAP_LDPC_CODING |
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IEEE80211_HT_CAP_MAX_AMSDU;
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dev->mphy.sband_5g.sband.ht_cap.cap |=
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IEEE80211_HT_CAP_LDPC_CODING |
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IEEE80211_HT_CAP_MAX_AMSDU;
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dev->mphy.sband_5g.sband.vht_cap.cap |=
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IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
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IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
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IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
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IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE |
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(3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
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if (is_mt7922(&dev->mt76))
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dev->mphy.sband_5g.sband.vht_cap.cap |=
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IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
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IEEE80211_VHT_CAP_SHORT_GI_160;
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dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask;
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dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask;
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queue_work(system_wq, &dev->init_work);
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return 0;
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}
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EXPORT_SYMBOL_GPL(mt7921_register_device);
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