mt76: mt7921: introduce mt7921e support
Introduce support for mt7921e 802.11ax (Wi-Fi 6) 2x2:2SS chipset. Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Co-developed-by: Soul Huang <Soul.Huang@mediatek.com> Signed-off-by: Soul Huang <Soul.Huang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Sean Wang
Felix Fietkau
parent
e0f9fdda81
commit
5c14a5f944
@ -33,3 +33,4 @@ source "drivers/net/wireless/mediatek/mt76/mt76x2/Kconfig"
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source "drivers/net/wireless/mediatek/mt76/mt7603/Kconfig"
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source "drivers/net/wireless/mediatek/mt76/mt7615/Kconfig"
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source "drivers/net/wireless/mediatek/mt76/mt7915/Kconfig"
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source "drivers/net/wireless/mediatek/mt76/mt7921/Kconfig"
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@ -34,3 +34,4 @@ obj-$(CONFIG_MT76x2_COMMON) += mt76x2/
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obj-$(CONFIG_MT7603E) += mt7603/
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obj-$(CONFIG_MT7615_COMMON) += mt7615/
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obj-$(CONFIG_MT7915E) += mt7915/
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obj-$(CONFIG_MT7921E) += mt7921/
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10
drivers/net/wireless/mediatek/mt76/mt7921/Kconfig
Normal file
10
drivers/net/wireless/mediatek/mt76/mt7921/Kconfig
Normal file
@ -0,0 +1,10 @@
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# SPDX-License-Identifier: ISC
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config MT7921E
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tristate "MediaTek MT7921E (PCIe) support"
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select MT76_CORE
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depends on MAC80211
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depends on PCI
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help
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This adds support for MT7921E 802.11ax 2x2:2SS wireless devices.
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To compile this driver as a module, choose M here.
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5
drivers/net/wireless/mediatek/mt76/mt7921/Makefile
Normal file
5
drivers/net/wireless/mediatek/mt76/mt7921/Makefile
Normal file
@ -0,0 +1,5 @@
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#SPDX-License-Identifier: ISC
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obj-$(CONFIG_MT7921E) += mt7921e.o
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mt7921e-y := pci.o mac.o mcu.o dma.o eeprom.o main.o init.o debugfs.o
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248
drivers/net/wireless/mediatek/mt76/mt7921/init.c
Normal file
248
drivers/net/wireless/mediatek/mt76/mt7921/init.c
Normal file
@ -0,0 +1,248 @@
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// 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 "mt7921.h"
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#include "mac.h"
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#include "eeprom.h"
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#define CCK_RATE(_idx, _rate) { \
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.bitrate = _rate, \
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.flags = IEEE80211_RATE_SHORT_PREAMBLE, \
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.hw_value = (MT_PHY_TYPE_CCK << 8) | (_idx), \
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.hw_value_short = (MT_PHY_TYPE_CCK << 8) | (4 + (_idx)), \
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}
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#define OFDM_RATE(_idx, _rate) { \
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.bitrate = _rate, \
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.hw_value = (MT_PHY_TYPE_OFDM << 8) | (_idx), \
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.hw_value_short = (MT_PHY_TYPE_OFDM << 8) | (_idx), \
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}
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static struct ieee80211_rate mt7921_rates[] = {
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CCK_RATE(0, 10),
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CCK_RATE(1, 20),
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CCK_RATE(2, 55),
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CCK_RATE(3, 110),
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OFDM_RATE(11, 60),
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OFDM_RATE(15, 90),
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OFDM_RATE(10, 120),
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OFDM_RATE(14, 180),
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OFDM_RATE(9, 240),
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OFDM_RATE(13, 360),
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OFDM_RATE(8, 480),
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OFDM_RATE(12, 540),
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};
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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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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 void
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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 wiphy *wiphy = hw->wiphy;
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hw->queues = 4;
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hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF;
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hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF;
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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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wiphy->iface_combinations = if_comb;
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wiphy->n_iface_combinations = ARRAY_SIZE(if_comb);
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wiphy->max_scan_ie_len = MT7921_SCAN_IE_LEN;
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wiphy->max_scan_ssids = 4;
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wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
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wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_SET_SCAN_DWELL);
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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, WANT_MONITOR_VIF);
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hw->max_tx_fragments = 4;
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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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mask = MT_MDP_RCFR0_MCU_RX_MGMT |
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MT_MDP_RCFR0_MCU_RX_CTL_NON_BAR |
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MT_MDP_RCFR0_MCU_RX_CTL_BAR;
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set = FIELD_PREP(MT_MDP_RCFR0_MCU_RX_MGMT, MT_MDP_TO_HIF) |
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FIELD_PREP(MT_MDP_RCFR0_MCU_RX_CTL_NON_BAR, MT_MDP_TO_HIF) |
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FIELD_PREP(MT_MDP_RCFR0_MCU_RX_CTL_BAR, MT_MDP_TO_HIF);
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mt76_rmw(dev, MT_MDP_BNRCFR0(band), mask, set);
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mask = MT_MDP_RCFR1_MCU_RX_BYPASS |
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MT_MDP_RCFR1_RX_DROPPED_UCAST |
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MT_MDP_RCFR1_RX_DROPPED_MCAST;
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set = FIELD_PREP(MT_MDP_RCFR1_MCU_RX_BYPASS, MT_MDP_TO_HIF) |
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FIELD_PREP(MT_MDP_RCFR1_RX_DROPPED_UCAST, MT_MDP_TO_HIF) |
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FIELD_PREP(MT_MDP_RCFR1_RX_DROPPED_MCAST, MT_MDP_TO_HIF);
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mt76_rmw(dev, MT_MDP_BNRCFR1(band), mask, set);
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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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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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}
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static void 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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/* disable hardware de-agg */
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mt76_clear(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN);
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mt76_clear(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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mt7921_mcu_set_rts_thresh(&dev->phy, 0x92b);
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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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mt7921_mcu_set_eeprom(dev);
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mt7921_mac_init(dev);
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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, idx;
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INIT_WORK(&dev->init_work, mt7921_init_work);
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spin_lock_init(&dev->token_lock);
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idr_init(&dev->token);
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ret = mt7921_dma_init(dev);
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if (ret)
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return ret;
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set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
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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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return ret;
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ret = mt7921_eeprom_init(dev);
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if (ret < 0)
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return ret;
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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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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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INIT_LIST_HEAD(&dev->phy.stats_list);
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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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skb_queue_head_init(&dev->phy.scan_event_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_waitqueue_head(&dev->reset_wait);
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INIT_WORK(&dev->reset_work, mt7921_mac_reset_work);
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ret = mt7921_init_hardware(dev);
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if (ret)
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return ret;
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mt7921_init_wiphy(hw);
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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_7991 |
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IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
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dev->mphy.sband_5g.sband.vht_cap.cap |=
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IEEE80211_VHT_CAP_SHORT_GI_160 |
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IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ;
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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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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, mt7921_rates,
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ARRAY_SIZE(mt7921_rates));
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if (ret)
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return ret;
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ieee80211_queue_work(mt76_hw(dev), &dev->init_work);
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return 0;
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}
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void mt7921_unregister_device(struct mt7921_dev *dev)
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{
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mt76_unregister_device(&dev->mt76);
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mt7921_mcu_exit(dev);
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mt7921_dma_cleanup(dev);
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mt7921_tx_token_put(dev);
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tasklet_disable(&dev->irq_tasklet);
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mt76_free_device(&dev->mt76);
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}
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184
drivers/net/wireless/mediatek/mt76/mt7921/pci.c
Normal file
184
drivers/net/wireless/mediatek/mt76/mt7921/pci.c
Normal file
@ -0,0 +1,184 @@
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// SPDX-License-Identifier: ISC
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/* Copyright (C) 2020 MediaTek Inc.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/pci.h>
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#include "mt7921.h"
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#include "mac.h"
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#include "../trace.h"
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static const struct pci_device_id mt7921_pci_device_table[] = {
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{ PCI_DEVICE(0x14c3, 0x7961) },
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{ },
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};
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static void
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mt7921_rx_poll_complete(struct mt76_dev *mdev, enum mt76_rxq_id q)
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{
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struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
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if (q == MT_RXQ_MAIN)
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mt7921_irq_enable(dev, MT_INT_RX_DONE_DATA);
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else if (q == MT_RXQ_MCU_WA)
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mt7921_irq_enable(dev, MT_INT_RX_DONE_WM2);
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else
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mt7921_irq_enable(dev, MT_INT_RX_DONE_WM);
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}
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static irqreturn_t mt7921_irq_handler(int irq, void *dev_instance)
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{
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struct mt7921_dev *dev = dev_instance;
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mt76_wr(dev, MT_WFDMA0_HOST_INT_ENA, 0);
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if (!test_bit(MT76_STATE_INITIALIZED, &dev->mphy.state))
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return IRQ_NONE;
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tasklet_schedule(&dev->irq_tasklet);
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return IRQ_HANDLED;
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}
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static void mt7921_irq_tasklet(unsigned long data)
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{
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struct mt7921_dev *dev = (struct mt7921_dev *)data;
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u32 intr, mask = 0;
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mt76_wr(dev, MT_WFDMA0_HOST_INT_ENA, 0);
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intr = mt76_rr(dev, MT_WFDMA0_HOST_INT_STA);
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intr &= dev->mt76.mmio.irqmask;
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mt76_wr(dev, MT_WFDMA0_HOST_INT_STA, intr);
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trace_dev_irq(&dev->mt76, intr, dev->mt76.mmio.irqmask);
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mask |= intr & MT_INT_RX_DONE_ALL;
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if (intr & MT_INT_TX_DONE_MCU)
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mask |= MT_INT_TX_DONE_MCU;
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mt76_set_irq_mask(&dev->mt76, MT_WFDMA0_HOST_INT_ENA, mask, 0);
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if (intr & MT_INT_TX_DONE_ALL)
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napi_schedule(&dev->mt76.tx_napi);
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if (intr & MT_INT_RX_DONE_WM)
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napi_schedule(&dev->mt76.napi[MT_RXQ_MCU]);
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if (intr & MT_INT_RX_DONE_WM2)
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napi_schedule(&dev->mt76.napi[MT_RXQ_MCU_WA]);
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if (intr & MT_INT_RX_DONE_DATA)
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napi_schedule(&dev->mt76.napi[MT_RXQ_MAIN]);
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}
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static int mt7921_pci_probe(struct pci_dev *pdev,
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const struct pci_device_id *id)
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{
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static const struct mt76_driver_ops drv_ops = {
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/* txwi_size = txd size + txp size */
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.txwi_size = MT_TXD_SIZE + sizeof(struct mt7921_txp_common),
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.drv_flags = MT_DRV_TXWI_NO_FREE | MT_DRV_HW_MGMT_TXQ |
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MT_DRV_AMSDU_OFFLOAD,
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.survey_flags = SURVEY_INFO_TIME_TX |
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SURVEY_INFO_TIME_RX |
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SURVEY_INFO_TIME_BSS_RX,
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.tx_prepare_skb = mt7921_tx_prepare_skb,
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.tx_complete_skb = mt7921_tx_complete_skb,
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.rx_skb = mt7921_queue_rx_skb,
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.rx_poll_complete = mt7921_rx_poll_complete,
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.sta_ps = mt7921_sta_ps,
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.sta_add = mt7921_mac_sta_add,
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.sta_remove = mt7921_mac_sta_remove,
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.update_survey = mt7921_update_channel,
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};
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struct mt7921_dev *dev;
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struct mt76_dev *mdev;
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int ret;
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ret = pcim_enable_device(pdev);
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if (ret)
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return ret;
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ret = pcim_iomap_regions(pdev, BIT(0), pci_name(pdev));
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if (ret)
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return ret;
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pci_set_master(pdev);
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ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_LEGACY);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
|
||||
if (ret)
|
||||
goto err_free_pci_vec;
|
||||
|
||||
mt76_pci_disable_aspm(pdev);
|
||||
|
||||
mdev = mt76_alloc_device(&pdev->dev, sizeof(*dev), &mt7921_ops,
|
||||
&drv_ops);
|
||||
if (!mdev) {
|
||||
ret = -ENOMEM;
|
||||
goto err_free_pci_vec;
|
||||
}
|
||||
|
||||
dev = container_of(mdev, struct mt7921_dev, mt76);
|
||||
|
||||
mt76_mmio_init(&dev->mt76, pcim_iomap_table(pdev)[0]);
|
||||
tasklet_init(&dev->irq_tasklet, mt7921_irq_tasklet, (unsigned long)dev);
|
||||
mdev->rev = (mt7921_l1_rr(dev, MT_HW_CHIPID) << 16) |
|
||||
(mt7921_l1_rr(dev, MT_HW_REV) & 0xff);
|
||||
dev_err(mdev->dev, "ASIC revision: %04x\n", mdev->rev);
|
||||
|
||||
mt76_wr(dev, MT_WFDMA0_HOST_INT_ENA, 0);
|
||||
|
||||
mt7921_l1_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0xff);
|
||||
|
||||
ret = devm_request_irq(mdev->dev, pdev->irq, mt7921_irq_handler,
|
||||
IRQF_SHARED, KBUILD_MODNAME, dev);
|
||||
if (ret)
|
||||
goto err_free_dev;
|
||||
|
||||
ret = mt7921_register_device(dev);
|
||||
if (ret)
|
||||
goto err_free_dev;
|
||||
|
||||
return 0;
|
||||
|
||||
err_free_dev:
|
||||
mt76_free_device(&dev->mt76);
|
||||
err_free_pci_vec:
|
||||
pci_free_irq_vectors(pdev);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void mt7921_pci_remove(struct pci_dev *pdev)
|
||||
{
|
||||
struct mt76_dev *mdev = pci_get_drvdata(pdev);
|
||||
struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
|
||||
|
||||
mt7921_unregister_device(dev);
|
||||
devm_free_irq(&pdev->dev, pdev->irq, dev);
|
||||
pci_free_irq_vectors(pdev);
|
||||
}
|
||||
|
||||
struct pci_driver mt7921_pci_driver = {
|
||||
.name = KBUILD_MODNAME,
|
||||
.id_table = mt7921_pci_device_table,
|
||||
.probe = mt7921_pci_probe,
|
||||
.remove = mt7921_pci_remove,
|
||||
};
|
||||
|
||||
module_pci_driver(mt7921_pci_driver);
|
||||
|
||||
MODULE_DEVICE_TABLE(pci, mt7921_pci_device_table);
|
||||
MODULE_FIRMWARE(MT7921_FIRMWARE_WM);
|
||||
MODULE_FIRMWARE(MT7921_ROM_PATCH);
|
||||
MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
|
||||
MODULE_AUTHOR("Lorenzo Bianconi <lorenzo@kernel.org>");
|
||||
MODULE_LICENSE("Dual BSD/GPL");
|
||||
Loading…
x
Reference in New Issue
Block a user