From patchwork Wed Jan 20 19:33:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Wang X-Patchwork-Id: 368446 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, UNPARSEABLE_RELAY, 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 91E91C4332E for ; Wed, 20 Jan 2021 19:42:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4D7B323440 for ; Wed, 20 Jan 2021 19:42:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2392672AbhATTiH (ORCPT ); Wed, 20 Jan 2021 14:38:07 -0500 Received: from mailgw02.mediatek.com ([210.61.82.184]:43152 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S2436485AbhATTgW (ORCPT ); Wed, 20 Jan 2021 14:36:22 -0500 X-UUID: 2817219aa23b442a8f13765fb2639c32-20210121 X-UUID: 2817219aa23b442a8f13765fb2639c32-20210121 Received: from mtkexhb01.mediatek.inc [(172.21.101.102)] by mailgw02.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.14 Build 0819 with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1674335370; Thu, 21 Jan 2021 03:33:57 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs01n2.mediatek.inc (172.21.101.79) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 21 Jan 2021 03:33:55 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 21 Jan 2021 03:33:55 +0800 From: To: , CC: , , , , , , , , , , Lorenzo Bianconi Subject: [PATCH -next v6 11/15] mt76: mt7921: introduce schedule scan support Date: Thu, 21 Jan 2021 03:33:47 +0800 Message-ID: <6eaf871e39dc5e917aa99b7bef4965327d014db2.1611060302.git.objelf@gmail.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: References: MIME-Version: 1.0 X-TM-SNTS-SMTP: B122EB7B9E75257EE7EE0EC245259D5AAACAB1F50D623634816C507C2AAD3A022000:8 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Sean Wang introduce schedule scan to control mt7921 firmware to do background scan in defined plan to see if the matched SSID is available. Co-developed-by: Lorenzo Bianconi Signed-off-by: Lorenzo Bianconi Co-developed-by: Soul Huang Signed-off-by: Soul Huang Signed-off-by: Sean Wang --- .../net/wireless/mediatek/mt76/mt7921/init.c | 5 ++ .../net/wireless/mediatek/mt76/mt7921/main.c | 38 +++++++++ .../net/wireless/mediatek/mt76/mt7921/mcu.c | 83 +++++++++++++++++++ .../net/wireless/mediatek/mt76/mt7921/mcu.h | 20 +++++ .../wireless/mediatek/mt76/mt7921/mt7921.h | 9 ++ 5 files changed, 155 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/init.c b/drivers/net/wireless/mediatek/mt76/mt7921/init.c index 2e04a7619b70..9aa110f6562b 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/init.c @@ -70,6 +70,11 @@ mt7921_init_wiphy(struct ieee80211_hw *hw) wiphy->n_iface_combinations = ARRAY_SIZE(if_comb); wiphy->max_scan_ie_len = MT7921_SCAN_IE_LEN; wiphy->max_scan_ssids = 4; + wiphy->max_sched_scan_plan_interval = MT7921_MAX_SCHED_SCAN_INTERVAL; + wiphy->max_sched_scan_ie_len = IEEE80211_MAX_DATA_LEN; + wiphy->max_sched_scan_ssids = MT7921_MAX_SCHED_SCAN_SSID; + wiphy->max_match_sets = MT7921_MAX_SCAN_MATCH; + wiphy->max_sched_scan_reqs = 1; wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_SET_SCAN_DWELL); diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/main.c b/drivers/net/wireless/mediatek/mt76/mt7921/main.c index 4e774527b912..2147bcc53148 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/main.c @@ -865,6 +865,42 @@ mt7921_cancel_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif) mutex_unlock(&dev->mt76.mutex); } +static int +mt7921_start_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + struct cfg80211_sched_scan_request *req, + struct ieee80211_scan_ies *ies) +{ + struct mt7921_dev *dev = mt7921_hw_dev(hw); + struct mt76_phy *mphy = hw->priv; + int err; + + mutex_lock(&dev->mt76.mutex); + + err = mt7921_mcu_sched_scan_req(mphy->priv, vif, req); + if (err < 0) + goto out; + + err = mt7921_mcu_sched_scan_enable(mphy->priv, vif, true); +out: + mutex_unlock(&dev->mt76.mutex); + + return err; +} + +static int +mt7921_stop_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif) +{ + struct mt7921_dev *dev = mt7921_hw_dev(hw); + struct mt76_phy *mphy = hw->priv; + int err; + + mutex_lock(&dev->mt76.mutex); + err = mt7921_mcu_sched_scan_enable(mphy->priv, vif, false); + mutex_unlock(&dev->mt76.mutex); + + return err; +} + static int mt7921_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant) { @@ -928,4 +964,6 @@ const struct ieee80211_ops mt7921_ops = { .set_coverage_class = mt7921_set_coverage_class, .hw_scan = mt7921_hw_scan, .cancel_hw_scan = mt7921_cancel_hw_scan, + .sched_scan_start = mt7921_start_sched_scan, + .sched_scan_stop = mt7921_stop_sched_scan, }; diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c index 797460d710ef..99fa49a69ae5 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c @@ -2425,6 +2425,89 @@ int mt7921_mcu_cancel_hw_scan(struct mt7921_phy *phy, sizeof(req), false); } +int mt7921_mcu_sched_scan_req(struct mt7921_phy *phy, + struct ieee80211_vif *vif, + struct cfg80211_sched_scan_request *sreq) +{ + struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv; + struct ieee80211_channel **scan_list = sreq->channels; + struct mt7921_dev *dev = phy->dev; + struct mt7921_mcu_scan_channel *chan; + struct mt7921_sched_scan_req *req; + struct cfg80211_match_set *match; + struct cfg80211_ssid *ssid; + struct sk_buff *skb; + int i; + + skb = mt76_mcu_msg_alloc(&dev->mt76, NULL, + sizeof(*req) + sreq->ie_len); + if (!skb) + return -ENOMEM; + + mvif->scan_seq_num = (mvif->scan_seq_num + 1) & 0x7f; + + req = (struct mt7921_sched_scan_req *)skb_put(skb, sizeof(*req)); + req->version = 1; + req->seq_num = mvif->scan_seq_num; + + req->ssids_num = sreq->n_ssids; + for (i = 0; i < req->ssids_num; i++) { + ssid = &sreq->ssids[i]; + memcpy(req->ssids[i].ssid, ssid->ssid, ssid->ssid_len); + req->ssids[i].ssid_len = cpu_to_le32(ssid->ssid_len); + } + + req->match_num = sreq->n_match_sets; + for (i = 0; i < req->match_num; i++) { + match = &sreq->match_sets[i]; + memcpy(req->match[i].ssid, match->ssid.ssid, + match->ssid.ssid_len); + req->match[i].rssi_th = cpu_to_le32(match->rssi_thold); + req->match[i].ssid_len = match->ssid.ssid_len; + } + + req->channel_type = sreq->n_channels ? 4 : 0; + req->channels_num = min_t(u8, sreq->n_channels, 64); + for (i = 0; i < req->channels_num; i++) { + chan = &req->channels[i]; + chan->band = scan_list[i]->band == NL80211_BAND_2GHZ ? 1 : 2; + chan->channel_num = scan_list[i]->hw_value; + } + + req->intervals_num = sreq->n_scan_plans; + for (i = 0; i < req->intervals_num; i++) + req->intervals[i] = cpu_to_le16(sreq->scan_plans[i].interval); + + if (sreq->ie_len > 0) { + req->ie_len = cpu_to_le16(sreq->ie_len); + memcpy(skb_put(skb, sreq->ie_len), sreq->ie, sreq->ie_len); + } + + return mt76_mcu_skb_send_msg(&dev->mt76, skb, MCU_CMD_SCHED_SCAN_REQ, + false); +} + +int mt7921_mcu_sched_scan_enable(struct mt7921_phy *phy, + struct ieee80211_vif *vif, + bool enable) +{ + struct mt7921_dev *dev = phy->dev; + struct { + u8 active; /* 0: enabled 1: disabled */ + u8 rsv[3]; + } __packed req = { + .active = !enable, + }; + + if (enable) + set_bit(MT76_HW_SCHED_SCANNING, &phy->mt76->state); + else + clear_bit(MT76_HW_SCHED_SCANNING, &phy->mt76->state); + + return mt76_mcu_send_msg(&dev->mt76, MCU_CMD_SCHED_SCAN_ENABLE, &req, + sizeof(req), false); +} + u32 mt7921_get_wtbl_info(struct mt7921_dev *dev, u16 wlan_idx) { struct mt7921_mcu_wlan_info wtbl_info = { diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h index 96eecea22d94..6894b44ff62d 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h @@ -879,6 +879,26 @@ struct mt7921_hw_scan_done { __le32 beacon_5g_num; } __packed; +struct mt7921_sched_scan_req { + u8 version; + u8 seq_num; + u8 stop_on_match; + u8 ssids_num; + u8 match_num; + u8 pad; + __le16 ie_len; + struct mt7921_mcu_scan_ssid ssids[MT7921_MAX_SCHED_SCAN_SSID]; + struct mt7921_mcu_scan_match match[MT7921_MAX_SCAN_MATCH]; + u8 channel_type; + u8 channels_num; + u8 intervals_num; + u8 scan_func; + struct mt7921_mcu_scan_channel channels[64]; + __le16 intervals[MT7921_MAX_SCHED_SCAN_INTERVAL]; + u8 bss_idx; + u8 pad2[64]; +} __packed; + struct mt7921_mcu_bss_event { u8 bss_idx; u8 is_absent; diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h index 5e4df00b1129..dc6064100f53 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h @@ -44,6 +44,9 @@ #define MT7921_SKU_TABLE_SIZE (MT7921_SKU_RATE_NUM + 1) #define MT7921_SCAN_IE_LEN 600 +#define MT7921_MAX_SCHED_SCAN_INTERVAL 10 +#define MT7921_MAX_SCHED_SCAN_SSID 10 +#define MT7921_MAX_SCAN_MATCH 16 struct mt7921_vif; struct mt7921_sta; @@ -350,6 +353,12 @@ void mt7921_scan_work(struct work_struct *work); int mt7921_mcu_set_channel_domain(struct mt7921_phy *phy); int mt7921_mcu_hw_scan(struct mt7921_phy *phy, struct ieee80211_vif *vif, struct ieee80211_scan_request *scan_req); +int mt7921_mcu_sched_scan_req(struct mt7921_phy *phy, + struct ieee80211_vif *vif, + struct cfg80211_sched_scan_request *sreq); +int mt7921_mcu_sched_scan_enable(struct mt7921_phy *phy, + struct ieee80211_vif *vif, + bool enable); int mt7921_mcu_cancel_hw_scan(struct mt7921_phy *phy, struct ieee80211_vif *vif); u32 mt7921_get_wtbl_info(struct mt7921_dev *dev, u16 wlan_idx);