From patchwork Mon Jun 22 20:13:27 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Felix Fietkau X-Patchwork-Id: 215269 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9903EC433E2 for ; Mon, 22 Jun 2020 20:13:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6216F2073E for ; Mon, 22 Jun 2020 20:13:47 +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="Ub2S5p++" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730230AbgFVUNp (ORCPT ); Mon, 22 Jun 2020 16:13:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54404 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728608AbgFVUNk (ORCPT ); Mon, 22 Jun 2020 16:13:40 -0400 Received: from nbd.name (nbd.name [IPv6:2a01:4f8:221:3d45::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7FCA1C061799 for ; Mon, 22 Jun 2020 13:13:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=nbd.name; s=20160729; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To: 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:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=bZAdNER9fFLvzjrP6BnalaoO2NjCxTOoDG03inge0Gw=; b=Ub2S5p++VXttgmuAszIQOUyzEJ rtSSyaPiLMg7SlT23ROsxEo79PmuHC8xuVMBq1i28wQZwl+jm+2F6SQNBuXHWnMwEzU+PRoY/1SC9 qhdLOlGDhLbY18cGvauwPuFlIHay9SRSeuH/XyTzETuE5kNzVNPtIMWxP7vKN6J6hxBM=; Received: from p54ae948c.dip0.t-ipconnect.de ([84.174.148.140] helo=localhost.localdomain) by ds12 with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.89) (envelope-from ) id 1jnSp0-0000qE-Ri for linux-wireless@vger.kernel.org; Mon, 22 Jun 2020 22:13:38 +0200 From: Felix Fietkau To: linux-wireless@vger.kernel.org Subject: [PATCH 7/7] mt76: mt7615: implement testmode support Date: Mon, 22 Jun 2020 22:13:27 +0200 Message-Id: <20200622201327.94414-7-nbd@nbd.name> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20200622201327.94414-1-nbd@nbd.name> References: <20200622201327.94414-1-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 Supports sending a configurable number of packets with a specific rate and configurable tx power levels / antenna settings, as well as displaying rx statistics. Signed-off-by: Felix Fietkau --- .../wireless/mediatek/mt76/mt7615/Makefile | 1 + .../net/wireless/mediatek/mt76/mt7615/init.c | 8 +- .../net/wireless/mediatek/mt76/mt7615/mac.c | 36 ++ .../net/wireless/mediatek/mt76/mt7615/mac.h | 5 + .../net/wireless/mediatek/mt76/mt7615/main.c | 44 ++- .../net/wireless/mediatek/mt76/mt7615/mcu.c | 35 +- .../net/wireless/mediatek/mt76/mt7615/mcu.h | 6 + .../wireless/mediatek/mt76/mt7615/mt7615.h | 18 + .../net/wireless/mediatek/mt76/mt7615/regs.h | 16 + .../wireless/mediatek/mt76/mt7615/testmode.c | 363 ++++++++++++++++++ 10 files changed, 523 insertions(+), 9 deletions(-) create mode 100644 drivers/net/wireless/mediatek/mt76/mt7615/testmode.c diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/Makefile b/drivers/net/wireless/mediatek/mt76/mt7615/Makefile index 99f353b8b9aa..d2ad84cb5244 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/Makefile +++ b/drivers/net/wireless/mediatek/mt76/mt7615/Makefile @@ -8,6 +8,7 @@ CFLAGS_trace.o := -I$(src) mt7615-common-y := main.o init.o mcu.o eeprom.o mac.o \ debugfs.o trace.o +mt7615-common-$(CONFIG_NL80211_TESTMODE) += testmode.o mt7615e-y := pci.o pci_init.o dma.o pci_mac.o mmio.o mt7615e-$(CONFIG_MT7622_WMAC) += soc.o diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/init.c b/drivers/net/wireless/mediatek/mt76/mt7615/init.c index e2d80518e5af..2e0840b0e902 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/init.c @@ -321,6 +321,7 @@ mt7615_init_wiphy(struct ieee80211_hw *hw) ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); ieee80211_hw_set(hw, TX_STATUS_NO_AMPDU_LEN); + ieee80211_hw_set(hw, WANT_MONITOR_VIF); if (is_mt7615(&phy->dev->mt76)) hw->max_tx_fragments = MT_TXP_MAX_BUF_NUM; @@ -405,9 +406,6 @@ int mt7615_register_ext_phy(struct mt7615_dev *dev) mphy->sband_2g.sband.n_channels = 0; mphy->hw->wiphy->bands[NL80211_BAND_2GHZ] = NULL; - /* The second interface does not get any packets unless it has a vif */ - ieee80211_hw_set(mphy->hw, WANT_MONITOR_VIF); - ret = mt76_register_phy(mphy); if (ret) ieee80211_free_hw(mphy->hw); @@ -457,5 +455,9 @@ void mt7615_init_device(struct mt7615_dev *dev) IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK; mt7615_cap_dbdc_disable(dev); dev->phy.dfs_state = -1; + +#ifdef CONFIG_NL80211_TESTMODE + dev->mt76.test_ops = &mt7615_testmode_ops; +#endif } EXPORT_SYMBOL_GPL(mt7615_init_device); diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c index 1dc291e8b766..9d74a6550cf0 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c @@ -186,6 +186,40 @@ mt7615_get_status_freq_info(struct mt7615_dev *dev, struct mt76_phy *mphy, status->freq = ieee80211_channel_to_frequency(chfreq, status->band); } +static void mt7615_mac_fill_tm_rx(struct mt7615_dev *dev, __le32 *rxv) +{ +#ifdef CONFIG_NL80211_TESTMODE + u32 rxv1 = le32_to_cpu(rxv[0]); + u32 rxv3 = le32_to_cpu(rxv[2]); + u32 rxv4 = le32_to_cpu(rxv[3]); + u32 rxv5 = le32_to_cpu(rxv[4]); + u8 cbw = FIELD_GET(MT_RXV1_FRAME_MODE, rxv1); + u8 mode = FIELD_GET(MT_RXV1_TX_MODE, rxv1); + s16 foe = FIELD_GET(MT_RXV5_FOE, rxv5); + u32 foe_const = (BIT(cbw + 1) & 0xf) * 10000; + + if (!mode) { + /* CCK */ + foe &= ~BIT(11); + foe *= 1000; + foe >>= 11; + } else { + if (foe > 2048) + foe -= 4096; + + foe = (foe * foe_const) >> 15; + } + + dev->test.last_freq_offset = foe; + dev->test.last_rcpi[0] = FIELD_GET(MT_RXV4_RCPI0, rxv4); + dev->test.last_rcpi[1] = FIELD_GET(MT_RXV4_RCPI1, rxv4); + dev->test.last_rcpi[2] = FIELD_GET(MT_RXV4_RCPI2, rxv4); + dev->test.last_rcpi[3] = FIELD_GET(MT_RXV4_RCPI3, rxv4); + dev->test.last_ib_rssi = FIELD_GET(MT_RXV3_IB_RSSI, rxv3); + dev->test.last_ib_rssi = FIELD_GET(MT_RXV3_WB_RSSI, rxv3); +#endif +} + static int mt7615_mac_fill_rx(struct mt7615_dev *dev, struct sk_buff *skb) { struct mt76_rx_status *status = (struct mt76_rx_status *)skb->cb; @@ -401,6 +435,8 @@ static int mt7615_mac_fill_rx(struct mt7615_dev *dev, struct sk_buff *skb) status->chain_signal[i]); } + mt7615_mac_fill_tm_rx(dev, rxd); + rxd += 6; if ((u8 *)rxd - skb->data >= skb->len) return -EINVAL; diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mac.h b/drivers/net/wireless/mediatek/mt76/mt7615/mac.h index 81608ab656b8..169f4e17b5b4 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.h +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.h @@ -100,11 +100,16 @@ enum rx_pkt_type { #define MT_RXV2_GROUP_ID GENMASK(26, 21) #define MT_RXV2_LENGTH GENMASK(20, 0) +#define MT_RXV3_WB_RSSI GENMASK(31, 24) +#define MT_RXV3_IB_RSSI GENMASK(23, 16) + #define MT_RXV4_RCPI3 GENMASK(31, 24) #define MT_RXV4_RCPI2 GENMASK(23, 16) #define MT_RXV4_RCPI1 GENMASK(15, 8) #define MT_RXV4_RCPI0 GENMASK(7, 0) +#define MT_RXV5_FOE GENMASK(11, 0) + #define MT_RXV6_NF3 GENMASK(31, 24) #define MT_RXV6_NF2 GENMASK(23, 16) #define MT_RXV6_NF1 GENMASK(15, 8) diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/main.c b/drivers/net/wireless/mediatek/mt76/mt7615/main.c index abb9853eaa8b..3abb33ddab7d 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/main.c @@ -76,6 +76,8 @@ static void mt7615_stop(struct ieee80211_hw *hw) mutex_lock(&dev->mt76.mutex); + mt76_testmode_reset(&dev->mt76, true); + clear_bit(MT76_STATE_RUNNING, &phy->mt76->state); cancel_delayed_work_sync(&phy->scan_work); @@ -137,6 +139,12 @@ static int mt7615_add_interface(struct ieee80211_hw *hw, mutex_lock(&dev->mt76.mutex); + mt76_testmode_reset(&dev->mt76, true); + + if (vif->type == NL80211_IFTYPE_MONITOR && + is_zero_ether_addr(vif->addr)) + phy->monitor_vif = vif; + mvif->idx = ffs(~dev->mphy.vif_mask) - 1; if (mvif->idx >= MT7615_MAX_INTERFACES) { ret = -ENOSPC; @@ -197,6 +205,13 @@ static void mt7615_remove_interface(struct ieee80211_hw *hw, /* TODO: disable beacon for the bss */ + mutex_lock(&dev->mt76.mutex); + mt76_testmode_reset(&dev->mt76, true); + mutex_unlock(&dev->mt76.mutex); + + if (vif == phy->monitor_vif) + phy->monitor_vif = NULL; + mt7615_mcu_add_dev_info(dev, vif, false); rcu_assign_pointer(dev->mt76.wcid[idx], NULL); @@ -234,7 +249,7 @@ static void mt7615_init_dfs_state(struct mt7615_phy *phy) phy->dfs_state = -1; } -static int mt7615_set_channel(struct mt7615_phy *phy) +int mt7615_set_channel(struct mt7615_phy *phy) { struct mt7615_dev *dev = phy->dev; bool ext_phy = phy != &dev->phy; @@ -260,7 +275,7 @@ 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_mcu_set_sku_en(phy, !mt76_testmode_enabled(&dev->mt76)); mt7615_mac_reset_counters(dev); phy->noise = 0; @@ -271,8 +286,11 @@ static int mt7615_set_channel(struct mt7615_phy *phy) mutex_unlock(&dev->mt76.mutex); mt76_txq_schedule_all(phy->mt76); - ieee80211_queue_delayed_work(phy->mt76->hw, &phy->mac_work, - MT7615_WATCHDOG_TIME); + + if (!mt76_testmode_enabled(&dev->mt76)) + ieee80211_queue_delayed_work(phy->mt76->hw, &phy->mac_work, + MT7615_WATCHDOG_TIME); + return ret; } @@ -369,6 +387,13 @@ static int mt7615_config(struct ieee80211_hw *hw, u32 changed) if (changed & (IEEE80211_CONF_CHANGE_CHANNEL | IEEE80211_CONF_CHANGE_POWER)) { +#ifdef CONFIG_NL80211_TESTMODE + if (dev->mt76.test.state != MT76_TM_STATE_OFF) { + mutex_lock(&dev->mt76.mutex); + mt76_testmode_reset(&dev->mt76, false); + mutex_unlock(&dev->mt76.mutex); + } +#endif ieee80211_stop_queues(hw); ret = mt7615_set_channel(phy); ieee80211_wake_queues(hw); @@ -377,6 +402,8 @@ static int mt7615_config(struct ieee80211_hw *hw, u32 changed) mutex_lock(&dev->mt76.mutex); if (changed & IEEE80211_CONF_CHANGE_MONITOR) { + mt76_testmode_reset(&dev->mt76, true); + if (!(hw->conf.flags & IEEE80211_CONF_MONITOR)) phy->rxfilter |= MT_WF_RFCR_DROP_OTHER_UC; else @@ -419,10 +446,13 @@ static void mt7615_configure_filter(struct ieee80211_hw *hw, MT_WF_RFCR1_DROP_CFACK; u32 flags = 0; + mutex_lock(&dev->mt76.mutex); + #define MT76_FILTER(_flag, _hw) do { \ flags |= *total_flags & FIF_##_flag; \ phy->rxfilter &= ~(_hw); \ - phy->rxfilter |= !(flags & FIF_##_flag) * (_hw); \ + if (!mt76_testmode_enabled(&dev->mt76)) \ + phy->rxfilter |= !(flags & FIF_##_flag) * (_hw);\ } while (0) phy->rxfilter &= ~(MT_WF_RFCR_DROP_OTHER_BSS | @@ -455,6 +485,8 @@ static void mt7615_configure_filter(struct ieee80211_hw *hw, mt76_clear(dev, MT_WF_RFCR1(band), ctl_flags); else mt76_set(dev, MT_WF_RFCR1(band), ctl_flags); + + mutex_unlock(&dev->mt76.mutex); } static void mt7615_bss_info_changed(struct ieee80211_hw *hw, @@ -1069,6 +1101,8 @@ const struct ieee80211_ops mt7615_ops = { .sched_scan_stop = mt7615_stop_sched_scan, .remain_on_channel = mt7615_remain_on_channel, .cancel_remain_on_channel = mt7615_cancel_remain_on_channel, + CFG80211_TESTMODE_CMD(mt76_testmode_cmd) + CFG80211_TESTMODE_DUMP(mt76_testmode_dump) #ifdef CONFIG_PM .suspend = mt7615_suspend, .resume = mt7615_resume, diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c index b4440f131925..026bf938c675 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c @@ -2806,6 +2806,14 @@ int mt7615_mcu_set_chan_info(struct mt7615_phy *phy, int cmd) .center_chan2 = ieee80211_frequency_to_channel(freq2), }; +#ifdef CONFIG_NL80211_TESTMODE + if (dev->mt76.test.state == MT76_TM_STATE_TX_FRAMES && + dev->mt76.test.tx_antenna_mask) { + req.tx_streams = hweight8(dev->mt76.test.tx_antenna_mask); + req.rx_streams_mask = dev->mt76.test.tx_antenna_mask; + } +#endif + if (dev->mt76.hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) req.switch_reason = CH_SWITCH_SCAN_BYPASS_DPD; else if ((chandef->chan->flags & IEEE80211_CHAN_RADAR) && @@ -2817,7 +2825,10 @@ int mt7615_mcu_set_chan_info(struct mt7615_phy *phy, int cmd) req.band_idx = phy != &dev->phy; req.bw = mt7615_mcu_chan_bw(chandef); - mt7615_mcu_set_txpower_sku(phy, req.txpower_sku); + if (mt76_testmode_enabled(&dev->mt76)) + memset(req.txpower_sku, 0x3f, 49); + else + mt7615_mcu_set_txpower_sku(phy, req.txpower_sku); return __mt76_mcu_send_msg(&dev->mt76, cmd, &req, sizeof(req), true); } @@ -2835,6 +2846,28 @@ int mt7615_mcu_get_temperature(struct mt7615_dev *dev, int index) sizeof(req), true); } +int mt7615_mcu_set_test_param(struct mt7615_dev *dev, u8 param, bool test_mode, + bool en) +{ + struct { + u8 test_mode_en; + u8 param_idx; + u8 _rsv[2]; + + u8 enable; + u8 _rsv2[3]; + + u8 pad[8]; + } req = { + .test_mode_en = test_mode, + .param_idx = param, + .enable = en, + }; + + return __mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD_ATE_CTRL, &req, + sizeof(req), false); +} + int mt7615_mcu_set_sku_en(struct mt7615_phy *phy, bool enable) { struct mt7615_dev *dev = phy->dev; diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h index 8e2be150a556..e8c7aa5c35ce 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h @@ -268,6 +268,7 @@ enum { MCU_EXT_CMD_GET_TEMP = 0x2c, MCU_EXT_CMD_WTBL_UPDATE = 0x32, MCU_EXT_CMD_SET_RDD_CTRL = 0x3a, + MCU_EXT_CMD_ATE_CTRL = 0x3d, MCU_EXT_CMD_PROTECT_CTRL = 0x3e, MCU_EXT_CMD_DBDC_CTRL = 0x45, MCU_EXT_CMD_MAC_INIT_CTRL = 0x46, @@ -289,6 +290,11 @@ enum { MCU_UNI_CMD_HIF_CTRL = MCU_UNI_PREFIX | 0x07, }; +enum { + MCU_ATE_SET_FREQ_OFFSET = 0xa, + MCU_ATE_SET_TX_POWER_CONTROL = 0x15, +}; + struct mt7615_mcu_uni_event { u8 cid; u8 pad[3]; diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h index af86cf6925dd..1ae6ea5b4f16 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h @@ -169,6 +169,8 @@ struct mt7615_phy { struct mt76_phy *mt76; struct mt7615_dev *dev; + struct ieee80211_vif *monitor_vif; + u32 rxfilter; u32 omac_mask; @@ -283,6 +285,17 @@ struct mt7615_dev { u32 debugfs_rf_wf; u32 debugfs_rf_reg; + +#ifdef CONFIG_NL80211_TESTMODE + struct { + u32 *reg_backup; + + s16 last_freq_offset; + u8 last_rcpi[4]; + s8 last_ib_rssi; + s8 last_wb_rssi; + } test; +#endif }; enum tx_pkt_queue_idx { @@ -377,6 +390,7 @@ extern const u32 mt7615e_reg_map[__MT_BASE_MAX]; extern const u32 mt7663e_reg_map[__MT_BASE_MAX]; extern struct pci_driver mt7615_pci_driver; extern struct platform_driver mt7622_wmac_driver; +extern const struct mt76_testmode_ops mt7615_testmode_ops; #ifdef CONFIG_MT7622_WMAC int mt7622_wmac_init(struct mt7615_dev *dev); @@ -488,6 +502,7 @@ void mt7615_init_txpower(struct mt7615_dev *dev, struct ieee80211_supported_band *sband); void mt7615_phy_init(struct mt7615_dev *dev); void mt7615_mac_init(struct mt7615_dev *dev); +int mt7615_set_channel(struct mt7615_phy *phy); int mt7615_mcu_restart(struct mt76_dev *dev); void mt7615_update_channel(struct mt76_dev *mdev); @@ -531,6 +546,7 @@ int mt7615_mcu_set_eeprom(struct mt7615_dev *dev); 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_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); void mt7615_mcu_fill_msg(struct mt7615_dev *dev, struct sk_buff *skb, int cmd, int *wait_seq); @@ -569,6 +585,8 @@ 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_test_param(struct mt7615_dev *dev, u8 param, bool test_mode, + bool en); int mt7615_mcu_set_sku_en(struct mt7615_phy *phy, bool enable); int mt7615_mcu_apply_rx_dcoc(struct mt7615_phy *phy); int mt7615_mcu_apply_tx_dpd(struct mt7615_phy *phy); diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/regs.h b/drivers/net/wireless/mediatek/mt76/mt7615/regs.h index 4743c12005a4..8d2c54918e68 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/regs.h +++ b/drivers/net/wireless/mediatek/mt76/mt7615/regs.h @@ -212,6 +212,9 @@ enum mt7615_reg_base { #define MT_WF_PHY_RXTD2_BASE MT_WF_PHY(0x2a00) #define MT_WF_PHY_RXTD2(_n) (MT_WF_PHY_RXTD2_BASE + ((_n) << 2)) +#define MT_WF_PHY_RFINTF3_0(_n) MT_WF_PHY(0x1100 + (_n) * 0x400) +#define MT_WF_PHY_RFINTF3_0_ANT GENMASK(7, 4) + #define MT_WF_CFG_BASE ((dev)->reg_map[MT_CFG_BASE]) #define MT_WF_CFG(ofs) (MT_WF_CFG_BASE + (ofs)) @@ -255,6 +258,13 @@ enum mt7615_reg_base { #define MT_WF_ARB_BASE ((dev)->reg_map[MT_ARB_BASE]) #define MT_WF_ARB(ofs) (MT_WF_ARB_BASE + (ofs)) +#define MT_ARB_RQCR MT_WF_ARB(0x070) +#define MT_ARB_RQCR_RX_START BIT(0) +#define MT_ARB_RQCR_RXV_START BIT(4) +#define MT_ARB_RQCR_RXV_R_EN BIT(7) +#define MT_ARB_RQCR_RXV_T_EN BIT(8) +#define MT_ARB_RQCR_BAND_SHIFT 16 + #define MT_ARB_SCR MT_WF_ARB(0x080) #define MT_ARB_SCR_TX0_DISABLE BIT(8) #define MT_ARB_SCR_RX0_DISABLE BIT(9) @@ -550,4 +560,10 @@ enum mt7615_reg_base { #define MT_WL_RX_BUSY BIT(30) #define MT_WL_TX_BUSY BIT(31) +#define MT_MCU_PTA_BASE 0x81060000 +#define MT_MCU_PTA(_n) (MT_MCU_PTA_BASE + (_n)) + +#define MT_ANT_SWITCH_CON(n) MT_MCU_PTA(0x0c8) +#define MT_ANT_SWITCH_CON_MODE(_n) (GENMASK(4, 0) << (_n * 8)) + #endif diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/testmode.c b/drivers/net/wireless/mediatek/mt76/mt7615/testmode.c new file mode 100644 index 000000000000..55ebb1ec8c70 --- /dev/null +++ b/drivers/net/wireless/mediatek/mt76/mt7615/testmode.c @@ -0,0 +1,363 @@ +// SPDX-License-Identifier: ISC +/* Copyright (C) 2020 Felix Fietkau */ + +#include "mt7615.h" +#include "eeprom.h" +#include "mcu.h" + +enum { + TM_CHANGED_TXPOWER_CTRL, + TM_CHANGED_TXPOWER, + TM_CHANGED_FREQ_OFFSET, + + /* must be last */ + NUM_TM_CHANGED +}; + + +static const u8 tm_change_map[] = { + [TM_CHANGED_TXPOWER_CTRL] = MT76_TM_ATTR_TX_POWER_CONTROL, + [TM_CHANGED_TXPOWER] = MT76_TM_ATTR_TX_POWER, + [TM_CHANGED_FREQ_OFFSET] = MT76_TM_ATTR_FREQ_OFFSET, +}; + +static const u32 reg_backup_list[] = { + MT_WF_PHY_RFINTF3_0(0), + MT_WF_PHY_RFINTF3_0(1), + MT_WF_PHY_RFINTF3_0(2), + MT_WF_PHY_RFINTF3_0(3), + MT_ANT_SWITCH_CON(2), + MT_ANT_SWITCH_CON(3), + MT_ANT_SWITCH_CON(4), + MT_ANT_SWITCH_CON(6), + MT_ANT_SWITCH_CON(7), + MT_ANT_SWITCH_CON(8), +}; + +static const struct { + u16 wf; + u16 reg; +} rf_backup_list[] = { + { 0, 0x48 }, + { 1, 0x48 }, + { 2, 0x48 }, + { 3, 0x48 }, +}; + +static int +mt7615_tm_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 *data, *eep = (u8 *)dev->mt76.eeprom.data; + enum nl80211_band band = chandef->chan->band; + struct sk_buff *skb; + 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, + }; + u8 *tx_power = NULL; + + if (dev->mt76.test.state != MT76_TM_STATE_OFF) + tx_power = dev->mt76.test.tx_power; + + len = sizeof(req_hdr) + MT7615_EE_MAX - MT_EE_NIC_CONF_0; + skb = mt76_mcu_msg_alloc(&dev->mt76, NULL, sizeof(req_hdr) + len); + if (!skb) + return -ENOMEM; + + skb_put_data(skb, &req_hdr, sizeof(req_hdr)); + data = skb_put_data(skb, eep + MT_EE_NIC_CONF_0, len); + + target_chains = mt7615_ext_pa_enabled(dev, band) ? 1 : n_chains; + for (i = 0; i < target_chains; i++) { + int index; + + ret = mt7615_eeprom_get_target_power_index(dev, chandef->chan, i); + if (ret < 0) + return -EINVAL; + + index = ret - MT_EE_NIC_CONF_0; + if (tx_power && tx_power[i]) + data[ret - MT_EE_NIC_CONF_0] = tx_power[i]; + } + + return __mt76_mcu_skb_send_msg(&dev->mt76, skb, + MCU_EXT_CMD_SET_TX_POWER_CTRL, false); +} + +static void +mt7615_tm_reg_backup_restore(struct mt7615_dev *dev) +{ + u32 *b = dev->test.reg_backup; + int n_regs = ARRAY_SIZE(reg_backup_list); + int n_rf_regs = ARRAY_SIZE(rf_backup_list); + int i; + + if (dev->mt76.test.state == MT76_TM_STATE_OFF) { + for (i = 0; i < n_regs; i++) + mt76_wr(dev, reg_backup_list[i], b[i]); + + for (i = 0; i < n_rf_regs; i++) + mt7615_rf_wr(dev, rf_backup_list[i].wf, + rf_backup_list[i].reg, b[n_regs + i]); + return; + } + + if (b) + return; + + b = devm_kzalloc(dev->mt76.dev, 4 * (n_regs + n_rf_regs), + GFP_KERNEL); + if (!b) + return; + + dev->test.reg_backup = b; + for (i = 0; i < n_regs; i++) + b[i] = mt76_rr(dev, reg_backup_list[i]); + for (i = 0; i < n_rf_regs; i++) + b[n_regs + i] = mt7615_rf_rr(dev, rf_backup_list[i].wf, + rf_backup_list[i].reg); +} + + +static void +mt7615_tm_init_phy(struct mt7615_dev *dev, struct mt7615_phy *phy) +{ + unsigned int total_flags = ~0; + + if (!test_bit(MT76_STATE_RUNNING, &phy->mt76->state)) + return; + + mutex_unlock(&dev->mt76.mutex); + mt7615_set_channel(phy); + mt7615_ops.configure_filter(phy->mt76->hw, 0, &total_flags, 0); + mutex_lock(&dev->mt76.mutex); + + mt7615_tm_reg_backup_restore(dev); +} + +static void +mt7615_tm_init(struct mt7615_dev *dev) +{ + mt7615_tm_init_phy(dev, &dev->phy); + + if (dev->mt76.phy2) + mt7615_tm_init_phy(dev, dev->mt76.phy2->priv); +} + +static void +mt7615_tm_set_rx_enable(struct mt7615_dev *dev, bool en) +{ + u32 rqcr_mask = (MT_ARB_RQCR_RX_START | + MT_ARB_RQCR_RXV_START | + MT_ARB_RQCR_RXV_R_EN | + MT_ARB_RQCR_RXV_T_EN) * + (BIT(0) | BIT(MT_ARB_RQCR_BAND_SHIFT)); + + if (en) { + mt76_clear(dev, MT_ARB_SCR, + MT_ARB_SCR_RX0_DISABLE | MT_ARB_SCR_RX1_DISABLE); + mt76_set(dev, MT_ARB_RQCR, rqcr_mask); + } else { + mt76_set(dev, MT_ARB_SCR, + MT_ARB_SCR_RX0_DISABLE | MT_ARB_SCR_RX1_DISABLE); + mt76_clear(dev, MT_ARB_RQCR, rqcr_mask); + } +} + +static void +mt7615_tm_set_tx_antenna(struct mt7615_dev *dev, bool en) +{ + struct mt76_testmode_data *td = &dev->mt76.test; + u8 mask = td->tx_antenna_mask; + int i; + + if (!mask) + return; + + if (!en) + mask = dev->phy.chainmask; + + for (i = 0; i < 4; i++) { + mt76_rmw_field(dev, MT_WF_PHY_RFINTF3_0(i), + MT_WF_PHY_RFINTF3_0_ANT, + td->tx_antenna_mask & BIT(i) ? 0xa : 0); + + } + + /* 2.4 GHz band */ + mt76_rmw_field(dev, MT_ANT_SWITCH_CON(3), MT_ANT_SWITCH_CON_MODE(0), + (td->tx_antenna_mask & BIT(0)) ? 0x8 : 0x1b); + mt76_rmw_field(dev, MT_ANT_SWITCH_CON(4), MT_ANT_SWITCH_CON_MODE(2), + (td->tx_antenna_mask & BIT(1)) ? 0xe : 0x1b); + mt76_rmw_field(dev, MT_ANT_SWITCH_CON(6), MT_ANT_SWITCH_CON_MODE(0), + (td->tx_antenna_mask & BIT(2)) ? 0x0 : 0xf); + mt76_rmw_field(dev, MT_ANT_SWITCH_CON(7), MT_ANT_SWITCH_CON_MODE(2), + (td->tx_antenna_mask & BIT(3)) ? 0x6 : 0xf); + + /* 5 GHz band */ + mt76_rmw_field(dev, MT_ANT_SWITCH_CON(4), MT_ANT_SWITCH_CON_MODE(1), + (td->tx_antenna_mask & BIT(0)) ? 0xd : 0x1b); + mt76_rmw_field(dev, MT_ANT_SWITCH_CON(2), MT_ANT_SWITCH_CON_MODE(3), + (td->tx_antenna_mask & BIT(1)) ? 0x13 : 0x1b); + mt76_rmw_field(dev, MT_ANT_SWITCH_CON(7), MT_ANT_SWITCH_CON_MODE(1), + (td->tx_antenna_mask & BIT(2)) ? 0x5 : 0xf); + mt76_rmw_field(dev, MT_ANT_SWITCH_CON(8), MT_ANT_SWITCH_CON_MODE(3), + (td->tx_antenna_mask & BIT(3)) ? 0xb : 0xf); + + for (i = 0; i < 4; i++) { + u32 val; + + val = mt7615_rf_rr(dev, i, 0x48); + val &= ~(0x3ff << 20); + if (td->tx_antenna_mask & BIT(i)) + val |= 3 << 20; + else + val |= (2 << 28) | (2 << 26) | (8 << 20); + mt7615_rf_wr(dev, i, 0x48, val); + } +} + +static void +mt7615_tm_set_tx_frames(struct mt7615_dev *dev, bool en) +{ + struct ieee80211_tx_info *info; + struct sk_buff *skb = dev->mt76.test.tx_skb; + + mt7615_mcu_set_chan_info(&dev->phy, MCU_EXT_CMD_SET_RX_PATH); + mt7615_tm_set_tx_antenna(dev, en); + mt7615_tm_set_rx_enable(dev, !en); + if (!en || !skb) + return; + + info = IEEE80211_SKB_CB(skb); + info->control.vif = dev->phy.monitor_vif; +} + +static void +mt7615_tm_update_params(struct mt7615_dev *dev, u32 changed) +{ + struct mt76_testmode_data *td = &dev->mt76.test; + bool en = dev->mt76.test.state != MT76_TM_STATE_OFF; + + if (changed & BIT(TM_CHANGED_TXPOWER_CTRL)) + mt7615_mcu_set_test_param(dev, MCU_ATE_SET_TX_POWER_CONTROL, + en, en && td->tx_power_control); + if (changed & BIT(TM_CHANGED_FREQ_OFFSET)) + mt7615_mcu_set_test_param(dev, MCU_ATE_SET_FREQ_OFFSET, + en, en ? td->freq_offset : 0); + if (changed & BIT(TM_CHANGED_TXPOWER)) + mt7615_tm_set_tx_power(&dev->phy); +} + +static int +mt7615_tm_set_state(struct mt76_dev *mdev, enum mt76_testmode_state state) +{ + struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76); + struct mt76_testmode_data *td = &mdev->test; + enum mt76_testmode_state prev_state = td->state; + + mdev->test.state = state; + + if (prev_state == MT76_TM_STATE_TX_FRAMES) + mt7615_tm_set_tx_frames(dev, false); + else if (state == MT76_TM_STATE_TX_FRAMES) + mt7615_tm_set_rx_enable(dev, true); + + if (state <= MT76_TM_STATE_IDLE) + mt7615_tm_init(dev); + + if ((state == MT76_TM_STATE_IDLE && + prev_state == MT76_TM_STATE_OFF) || + (state == MT76_TM_STATE_OFF && + prev_state == MT76_TM_STATE_IDLE)) { + u32 changed = 0; + int i; + + for (i = 0; i < ARRAY_SIZE(tm_change_map); i++) { + u16 cur = tm_change_map[i]; + + if (td->param_set[cur / 32] & BIT(cur % 32)) + changed |= BIT(i); + } + + mt7615_tm_update_params(dev, changed); + } + + return 0; +} + +static int +mt7615_tm_set_params(struct mt76_dev *mdev, struct nlattr **tb, + enum mt76_testmode_state new_state) +{ + struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76); + struct mt76_testmode_data *td = &dev->mt76.test; + u32 changed = 0; + int i; + + BUILD_BUG_ON(NUM_TM_CHANGED >= 32); + + if (new_state == MT76_TM_STATE_OFF || + td->state == MT76_TM_STATE_OFF) + return 0; + + if (td->tx_antenna_mask & ~dev->phy.chainmask) + return -EINVAL; + + for (i = 0; i < ARRAY_SIZE(tm_change_map); i++) { + if (tb[tm_change_map[i]]) + changed |= BIT(i); + } + + mt7615_tm_update_params(dev, changed); + + return 0; +} + +static int +mt7615_tm_dump_stats(struct mt76_dev *mdev, struct sk_buff *msg) +{ + struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76); + void *rx, *rssi; + int i; + + rx = nla_nest_start(msg, MT76_TM_STATS_ATTR_LAST_RX); + if (!rx) + return -ENOMEM; + + if (nla_put_s32(msg, MT76_TM_RX_ATTR_FREQ_OFFSET, dev->test.last_freq_offset) || + nla_put_s32(msg, MT76_TM_RX_ATTR_IB_RSSI, dev->test.last_ib_rssi) || + nla_put_s32(msg, MT76_TM_RX_ATTR_WB_RSSI, dev->test.last_wb_rssi)) + return -ENOMEM; + + rssi = nla_nest_start(msg, MT76_TM_RX_ATTR_RCPI); + if (!rssi) + return -ENOMEM; + + for (i = 0; i < ARRAY_SIZE(dev->test.last_rcpi); i++) + if (nla_put_u8(msg, i, dev->test.last_rcpi[i])) + return -ENOMEM; + + nla_nest_end(msg, rssi); + + nla_nest_end(msg, rx); + + return 0; +} + +const struct mt76_testmode_ops mt7615_testmode_ops = { + .set_state = mt7615_tm_set_state, + .set_params = mt7615_tm_set_params, + .dump_stats = mt7615_tm_dump_stats, +};