From patchwork Thu Jan 30 16:01:20 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Felix Fietkau X-Patchwork-Id: 11358235 X-Patchwork-Delegate: nbd@nbd.name Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A793413A4 for ; Thu, 30 Jan 2020 16:01:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7C7952082E for ; Thu, 30 Jan 2020 16:01:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=nbd.name header.i=@nbd.name header.b="oxuHlntQ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727291AbgA3QBX (ORCPT ); Thu, 30 Jan 2020 11:01:23 -0500 Received: from nbd.name ([46.4.11.11]:33374 "EHLO nbd.name" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727158AbgA3QBX (ORCPT ); Thu, 30 Jan 2020 11:01:23 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=nbd.name; s=20160729; h=Content-Transfer-Encoding:MIME-Version:Message-Id:Date:Subject :To:From:Sender:Reply-To:Cc:Content-Type:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=N7MIZTCFLaTcJo/0KB0m7js6SLpw5ohFGSZYg+5GnFk=; b=oxuHlntQE83s37+BqLjCYDQHuM flMpFvMZkjXCPDM6Pvb2ALDqb1778A+7x8mfSnmu6noceOoJqumBSAQle3CSH5quzweW7Sr7dQj/p XZVd1Q7kL4XVspdfy5nrVFnkPm66VhGHrJ9IzC8E2WCPQmnK7cZyaIWkEhu8L+4GwpZY=; Received: from [178.162.209.135] (helo=maeck.local) by ds12 with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1ixCFt-0006qR-U8 for linux-wireless@vger.kernel.org; Thu, 30 Jan 2020 17:01:22 +0100 Received: by maeck.local (Postfix, from userid 501) id 4EDCA7AE5A01; Thu, 30 Jan 2020 17:01:21 +0100 (CET) From: Felix Fietkau To: linux-wireless@vger.kernel.org Subject: [PATCH 1/2] mt76: mt7615: fix and rework tx power handling Date: Thu, 30 Jan 2020 17:01:20 +0100 Message-Id: <20200130160121.14714-1-nbd@nbd.name> X-Mailer: git-send-email 2.24.0 MIME-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Setting the tx power by manipulating EEPROM may in some cases not be enough, since it only covers the base target power and not per-rate offsets. In other cases, it could limit tx power of rates too much, possibly reducing throughput or range. Use firmware support for applying per-rate limit and power offsets for different values of Nss. Signed-off-by: Felix Fietkau --- .../net/wireless/mediatek/mt76/mt7615/main.c | 7 +- .../net/wireless/mediatek/mt76/mt7615/mcu.c | 112 +++++++----------- .../net/wireless/mediatek/mt76/mt7615/mcu.h | 57 +++++++++ .../wireless/mediatek/mt76/mt7615/mt7615.h | 2 +- 4 files changed, 103 insertions(+), 75 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/main.c b/drivers/net/wireless/mediatek/mt76/mt7615/main.c index b8e57bf7814b..699471745b8b 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/main.c @@ -241,6 +241,7 @@ static int mt7615_set_channel(struct mt7615_phy *phy) mt7615_mac_set_timing(phy); ret = mt7615_dfs_init_radar_detector(phy); mt7615_mac_cca_stats_reset(phy); + mt7615_mcu_set_sku_en(phy, true); mt7615_mac_reset_counters(dev); phy->noise = 0; @@ -313,7 +314,8 @@ static int mt7615_config(struct ieee80211_hw *hw, u32 changed) bool band = phy != &dev->phy; int ret = 0; - if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { + if (changed & (IEEE80211_CONF_CHANGE_CHANNEL | + IEEE80211_CONF_CHANGE_POWER)) { ieee80211_stop_queues(hw); ret = mt7615_set_channel(phy); ieee80211_wake_queues(hw); @@ -321,9 +323,6 @@ static int mt7615_config(struct ieee80211_hw *hw, u32 changed) mutex_lock(&dev->mt76.mutex); - if (changed & IEEE80211_CONF_CHANGE_POWER) - ret = mt7615_mcu_set_tx_power(phy); - if (changed & IEEE80211_CONF_CHANGE_MONITOR) { if (!(hw->conf.flags & IEEE80211_CONF_MONITOR)) phy->rxfilter |= MT_WF_RFCR_DROP_OTHER_UC; diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c index d8bdd88d9fe9..e43d480ed1ae 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c @@ -1333,75 +1333,6 @@ int mt7615_mcu_set_bcn(struct ieee80211_hw *hw, struct ieee80211_vif *vif, &req, sizeof(req), true); } -int mt7615_mcu_set_tx_power(struct mt7615_phy *phy) -{ - struct mt7615_dev *dev = phy->dev; - struct mt76_phy *mphy = phy->mt76; - int i, ret, n_chains = hweight8(mphy->antenna_mask); - struct cfg80211_chan_def *chandef = &mphy->chandef; - int freq = chandef->center_freq1, len, target_chains; - u8 *req, *data, *eep = (u8 *)dev->mt76.eeprom.data; - enum nl80211_band band = chandef->chan->band; - struct ieee80211_hw *hw = mphy->hw; - struct { - u8 center_chan; - u8 dbdc_idx; - u8 band; - u8 rsv; - } __packed req_hdr = { - .center_chan = ieee80211_frequency_to_channel(freq), - .band = band, - .dbdc_idx = phy != &dev->phy, - }; - s8 tx_power; - - len = sizeof(req_hdr) + MT7615_EE_MAX - MT_EE_NIC_CONF_0; - req = kzalloc(len, GFP_KERNEL); - if (!req) - return -ENOMEM; - - memcpy(req, &req_hdr, sizeof(req_hdr)); - data = req + sizeof(req_hdr); - memcpy(data, eep + MT_EE_NIC_CONF_0, - MT7615_EE_MAX - MT_EE_NIC_CONF_0); - - tx_power = hw->conf.power_level * 2; - switch (n_chains) { - case 4: - tx_power -= 12; - break; - case 3: - tx_power -= 8; - break; - case 2: - tx_power -= 6; - break; - default: - break; - } - tx_power = max_t(s8, tx_power, 0); - mphy->txpower_cur = tx_power; - - target_chains = mt7615_ext_pa_enabled(dev, band) ? 1 : n_chains; - for (i = 0; i < target_chains; i++) { - int index = -MT_EE_NIC_CONF_0; - - ret = mt7615_eeprom_get_power_index(dev, chandef->chan, i); - if (ret < 0) - goto out; - - index += ret; - data[index] = min_t(u8, data[index], tx_power); - } - - ret = __mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD_SET_TX_POWER_CTRL, - req, len, true); -out: - kfree(req); - - return ret; -} - int mt7615_mcu_rdd_cmd(struct mt7615_dev *dev, enum mt7615_rdd_cmd cmd, u8 index, u8 rx_sel, u8 val) @@ -1502,6 +1433,28 @@ int mt7615_mcu_rdd_send_pattern(struct mt7615_dev *dev) &req, sizeof(req), false); } +static void mt7615_mcu_set_txpower_sku(struct mt7615_phy *phy, u8 *sku) +{ + static const u8 nss_delta[4] = { 0, 6, 8, 12 }; + struct mt76_phy *mphy = phy->mt76; + struct ieee80211_hw *hw = mphy->hw; + int n_chains = hweight8(mphy->antenna_mask); + int tx_power; + int i; + + tx_power = hw->conf.power_level * 2 - nss_delta[n_chains - 1]; + for (i = 0; i < MT_SKU_1SS_DELTA; i++) + sku[i] = tx_power; + + for (i = 0; i < 4; i++) { + int delta = 0; + + if (i < n_chains - 1) + delta = nss_delta[n_chains - 1] - nss_delta[i]; + sku[MT_SKU_1SS_DELTA + i] = delta; + } +} + int mt7615_mcu_set_chan_info(struct mt7615_phy *phy, int cmd) { struct mt7615_dev *dev = phy->dev; @@ -1568,7 +1521,8 @@ int mt7615_mcu_set_chan_info(struct mt7615_phy *phy, int cmd) req.bw = CMD_CBW_20MHZ; break; } - memset(req.txpower_sku, 0x3f, 49); + + mt7615_mcu_set_txpower_sku(phy, req.txpower_sku); return __mt76_mcu_send_msg(&dev->mt76, cmd, &req, sizeof(req), true); } @@ -1837,3 +1791,21 @@ int mt7615_mcu_get_temperature(struct mt7615_dev *dev, int index) return __mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD_GET_TEMP, &req, sizeof(req), true); } + +int mt7615_mcu_set_sku_en(struct mt7615_phy *phy, bool enable) +{ + struct mt7615_dev *dev = phy->dev; + struct { + u8 format_id; + u8 sku_enable; + u8 band_idx; + u8 rsv; + } req = { + .format_id = 0, + .band_idx = phy != &dev->phy, + .sku_enable = enable, + }; + + return __mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD_TX_POWER_FEATURE_CTRL, &req, + sizeof(req), true); +} diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h index b47d12a4c608..640b00b8aa32 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h @@ -45,6 +45,62 @@ enum { MCU_EXT_EVENT_CSA_NOTIFY = 0x4f, }; +enum { + MT_SKU_CCK_1_2 = 0, + MT_SKU_CCK_55_11, + MT_SKU_OFDM_6_9, + MT_SKU_OFDM_12_18, + MT_SKU_OFDM_24_36, + MT_SKU_OFDM_48, + MT_SKU_OFDM_54, + MT_SKU_HT20_0_8, + MT_SKU_HT20_32, + MT_SKU_HT20_1_2_9_10, + MT_SKU_HT20_3_4_11_12, + MT_SKU_HT20_5_13, + MT_SKU_HT20_6_14, + MT_SKU_HT20_7_15, + MT_SKU_HT40_0_8, + MT_SKU_HT40_32, + MT_SKU_HT40_1_2_9_10, + MT_SKU_HT40_3_4_11_12, + MT_SKU_HT40_5_13, + MT_SKU_HT40_6_14, + MT_SKU_HT40_7_15, + MT_SKU_VHT20_0, + MT_SKU_VHT20_1_2, + MT_SKU_VHT20_3_4, + MT_SKU_VHT20_5_6, + MT_SKU_VHT20_7, + MT_SKU_VHT20_8, + MT_SKU_VHT20_9, + MT_SKU_VHT40_0, + MT_SKU_VHT40_1_2, + MT_SKU_VHT40_3_4, + MT_SKU_VHT40_5_6, + MT_SKU_VHT40_7, + MT_SKU_VHT40_8, + MT_SKU_VHT40_9, + MT_SKU_VHT80_0, + MT_SKU_VHT80_1_2, + MT_SKU_VHT80_3_4, + MT_SKU_VHT80_5_6, + MT_SKU_VHT80_7, + MT_SKU_VHT80_8, + MT_SKU_VHT80_9, + MT_SKU_VHT160_0, + MT_SKU_VHT160_1_2, + MT_SKU_VHT160_3_4, + MT_SKU_VHT160_5_6, + MT_SKU_VHT160_7, + MT_SKU_VHT160_8, + MT_SKU_VHT160_9, + MT_SKU_1SS_DELTA, + MT_SKU_2SS_DELTA, + MT_SKU_3SS_DELTA, + MT_SKU_4SS_DELTA, +}; + struct mt7615_mcu_rxd { __le32 rxd[4]; @@ -152,6 +208,7 @@ enum { MCU_EXT_CMD_MAC_INIT_CTRL = 0x46, MCU_EXT_CMD_BCN_OFFLOAD = 0x49, MCU_EXT_CMD_SET_RX_PATH = 0x4e, + MCU_EXT_CMD_TX_POWER_FEATURE_CTRL = 0x58, MCU_EXT_CMD_SET_RDD_TH = 0x7c, MCU_EXT_CMD_SET_RDD_PATTERN = 0x7d, }; diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h index 9eb5cfcfe704..b43a09894487 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h @@ -357,7 +357,6 @@ int mt7615_mcu_set_mac_enable(struct mt7615_dev *dev, int band, bool enable); int mt7615_mcu_set_rts_thresh(struct mt7615_phy *phy, u32 val); int mt7615_mcu_ctrl_pm_state(struct mt7615_dev *dev, int band, int enter); int mt7615_mcu_get_temperature(struct mt7615_dev *dev, int index); -int mt7615_mcu_set_tx_power(struct mt7615_phy *phy); void mt7615_mcu_exit(struct mt7615_dev *dev); int mt7615_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr, @@ -383,6 +382,7 @@ int mt7615_mcu_set_pulse_th(struct mt7615_dev *dev, const struct mt7615_dfs_pulse *pulse); int mt7615_mcu_set_radar_th(struct mt7615_dev *dev, int index, const struct mt7615_dfs_pattern *pattern); +int mt7615_mcu_set_sku_en(struct mt7615_phy *phy, bool enable); int mt7615_dfs_init_radar_detector(struct mt7615_phy *phy); int mt7615_init_debugfs(struct mt7615_dev *dev); From patchwork Thu Jan 30 16:01:21 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Felix Fietkau X-Patchwork-Id: 11358237 X-Patchwork-Delegate: nbd@nbd.name Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 424EA112B for ; Thu, 30 Jan 2020 16:01:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 210FA2082E for ; Thu, 30 Jan 2020 16:01:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=nbd.name header.i=@nbd.name header.b="bpH10Ff3" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727303AbgA3QBY (ORCPT ); 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Thu, 30 Jan 2020 17:01:22 +0100 Received: by maeck.local (Postfix, from userid 501) id 52C547AE5A02; Thu, 30 Jan 2020 17:01:21 +0100 (CET) From: Felix Fietkau To: linux-wireless@vger.kernel.org Subject: [PATCH 2/2] mt76: mt7615: report firmware log event messages Date: Thu, 30 Jan 2020 17:01:21 +0100 Message-Id: <20200130160121.14714-2-nbd@nbd.name> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20200130160121.14714-1-nbd@nbd.name> References: <20200130160121.14714-1-nbd@nbd.name> MIME-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Useful for debugging firmware issues. Can be turned on via the "fw_debug" debugfs file Signed-off-by: Felix Fietkau --- .../wireless/mediatek/mt76/mt7615/debugfs.c | 28 +++++++++++++ .../net/wireless/mediatek/mt76/mt7615/mcu.c | 39 +++++++++++++++++++ .../net/wireless/mediatek/mt76/mt7615/mcu.h | 1 + .../wireless/mediatek/mt76/mt7615/mt7615.h | 2 + 4 files changed, 70 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c b/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c index 783f145b7d02..158c0c183e9c 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c @@ -71,6 +71,33 @@ mt7615_dbdc_get(void *data, u64 *val) DEFINE_DEBUGFS_ATTRIBUTE(fops_dbdc, mt7615_dbdc_get, mt7615_dbdc_set, "%lld\n"); +static int +mt7615_fw_debug_set(void *data, u64 val) +{ + struct mt7615_dev *dev = data; + + if (!mt7615_wait_for_mcu_init(dev)) + return 0; + + dev->fw_debug = val; + mt7615_mcu_fw_log_2_host(dev, dev->fw_debug ? 2 : 0); + + return 0; +} + +static int +mt7615_fw_debug_get(void *data, u64 *val) +{ + struct mt7615_dev *dev = data; + + *val = dev->fw_debug; + + return 0; +} + +DEFINE_DEBUGFS_ATTRIBUTE(fops_fw_debug, mt7615_fw_debug_get, + mt7615_fw_debug_set, "%lld\n"); + static int mt7615_ampdu_stat_read(struct seq_file *file, void *data) { @@ -222,6 +249,7 @@ int mt7615_init_debugfs(struct mt7615_dev *dev) debugfs_create_file("ampdu_stat", 0400, dir, dev, &fops_ampdu_stat); debugfs_create_file("scs", 0600, dir, dev, &fops_scs); debugfs_create_file("dbdc", 0600, dir, dev, &fops_dbdc); + debugfs_create_file("fw_debug", 0600, dir, dev, &fops_fw_debug); debugfs_create_devm_seqfile(dev->mt76.dev, "radio", dir, mt7615_radio_read); debugfs_create_u32("dfs_hw_pattern", 0400, dir, &dev->hw_pattern); diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c index e43d480ed1ae..94b3c59373d1 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c @@ -201,6 +201,28 @@ mt7615_mcu_rx_radar_detected(struct mt7615_dev *dev, struct sk_buff *skb) dev->hw_pattern++; } +static void +mt7615_mcu_rx_log_message(struct mt7615_dev *dev, struct sk_buff *skb) +{ + struct mt7615_mcu_rxd *rxd = (struct mt7615_mcu_rxd *)skb->data; + const char *data = (char *)&rxd[1]; + const char *type; + + switch (rxd->s2d_index) { + case 0: + type = "N9"; + break; + case 2: + type = "CR4"; + break; + default: + type = "unknown"; + break; + } + + wiphy_info(mt76_hw(dev)->wiphy, "%s: %s", type, data); +} + static void mt7615_mcu_rx_ext_event(struct mt7615_dev *dev, struct sk_buff *skb) { @@ -215,6 +237,9 @@ mt7615_mcu_rx_ext_event(struct mt7615_dev *dev, struct sk_buff *skb) IEEE80211_IFACE_ITER_RESUME_ALL, mt7615_mcu_csa_finish, dev); break; + case MCU_EXT_EVENT_FW_LOG_2_HOST: + mt7615_mcu_rx_log_message(dev, skb); + break; default: break; } @@ -643,6 +668,19 @@ static int mt7622_load_firmware(struct mt7615_dev *dev) return 0; } +int mt7615_mcu_fw_log_2_host(struct mt7615_dev *dev, u8 ctrl) +{ + struct { + u8 ctrl_val; + u8 pad[3]; + } data = { + .ctrl_val = ctrl + }; + + return __mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD_FW_LOG_2_HOST, + &data, sizeof(data), true); +} + int mt7615_mcu_init(struct mt7615_dev *dev) { static const struct mt76_mcu_ops mt7615_mcu_ops = { @@ -667,6 +705,7 @@ int mt7615_mcu_init(struct mt7615_dev *dev) mt76_queue_tx_cleanup(dev, MT_TXQ_FWDL, false); dev_dbg(dev->mt76.dev, "Firmware init done\n"); set_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state); + mt7615_mcu_fw_log_2_host(dev, 0); return 0; } diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h index 640b00b8aa32..2fbfbdb2c53d 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h @@ -195,6 +195,7 @@ enum { MCU_EXT_CMD_PM_STATE_CTRL = 0x07, MCU_EXT_CMD_CHANNEL_SWITCH = 0x08, MCU_EXT_CMD_SET_TX_POWER_CTRL = 0x11, + MCU_EXT_CMD_FW_LOG_2_HOST = 0x13, MCU_EXT_CMD_EFUSE_BUFFER_MODE = 0x21, MCU_EXT_CMD_STA_REC_UPDATE = 0x25, MCU_EXT_CMD_BSS_INFO_UPDATE = 0x26, diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h index b43a09894487..b4748cf079b1 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h @@ -169,6 +169,7 @@ struct mt7615_dev { u8 mac_work_count; bool scs_en; + bool fw_debug; spinlock_t token_lock; struct idr token; @@ -308,6 +309,7 @@ int mt7615_mcu_rdd_cmd(struct mt7615_dev *dev, enum mt7615_rdd_cmd cmd, u8 index, u8 rx_sel, u8 val); int mt7615_mcu_rdd_send_pattern(struct mt7615_dev *dev); +int mt7615_mcu_fw_log_2_host(struct mt7615_dev *dev, u8 ctrl); static inline bool is_mt7622(struct mt76_dev *dev) {