From patchwork Tue May 25 08:45:14 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ryder Lee X-Patchwork-Id: 12278171 X-Patchwork-Delegate: nbd@nbd.name 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=-16.7 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 E8F41C2B9F8 for ; Tue, 25 May 2021 08:45:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CB1BD6141B for ; Tue, 25 May 2021 08:45:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231437AbhEYIqt (ORCPT ); Tue, 25 May 2021 04:46:49 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:38471 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S230108AbhEYIqs (ORCPT ); Tue, 25 May 2021 04:46:48 -0400 X-UUID: 0215012bb09d418fa5b42e62e1c6f38d-20210525 X-UUID: 0215012bb09d418fa5b42e62e1c6f38d-20210525 Received: from mtkmbs10n1.mediatek.inc [(172.21.101.34)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1972369058; Tue, 25 May 2021 16:45:18 +0800 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs06n2.mediatek.inc (172.21.101.130) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 25 May 2021 16:45:16 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 25 May 2021 16:45:16 +0800 From: Ryder Lee To: Felix Fietkau CC: Lorenzo Bianconi , Shayne Chen , Evelyn Tsai , , , Ryder Lee Subject: [PATCH 1/2] mt76: mt7915: add .offset_tsf callback Date: Tue, 25 May 2021 16:45:14 +0800 Message-ID: <324aa6af6a191a1f929fd3054148b001acd0bd13.1621931743.git.ryder.lee@mediatek.com> X-Mailer: git-send-email 2.18.0 MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org It's much more accurate than .get_tsf + .set_tsf, and switch to use mt76_rmw to operate tsf registers. Tested-by: Xing Song Signed-off-by: Ryder Lee --- .../net/wireless/mediatek/mt76/mt7915/main.c | 33 +++++++++++++++++-- .../net/wireless/mediatek/mt76/mt7915/regs.h | 2 ++ 2 files changed, 33 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/main.c b/drivers/net/wireless/mediatek/mt76/mt7915/main.c index 64f9ebe4424a..2485f65766e7 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/main.c @@ -816,7 +816,8 @@ mt7915_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif) n = mvif->omac_idx > HW_BSSID_MAX ? HW_BSSID_0 : mvif->omac_idx; /* TSF software read */ - mt76_set(dev, MT_LPON_TCR(band, n), MT_LPON_TCR_SW_MODE); + mt76_rmw(dev, MT_LPON_TCR(band, n), MT_LPON_TCR_SW_MODE, + MT_LPON_TCR_SW_READ); tsf.t32[0] = mt76_rr(dev, MT_LPON_UTTR0(band)); tsf.t32[1] = mt76_rr(dev, MT_LPON_UTTR1(band)); @@ -845,7 +846,34 @@ mt7915_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif, mt76_wr(dev, MT_LPON_UTTR0(band), tsf.t32[0]); mt76_wr(dev, MT_LPON_UTTR1(band), tsf.t32[1]); /* TSF software overwrite */ - mt76_set(dev, MT_LPON_TCR(band, n), MT_LPON_TCR_SW_WRITE); + mt76_rmw(dev, MT_LPON_TCR(band, n), MT_LPON_TCR_SW_MODE, + MT_LPON_TCR_SW_WRITE); + + mutex_unlock(&dev->mt76.mutex); +} + +static void +mt7915_offset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + s64 timestamp) +{ + struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv; + struct mt7915_dev *dev = mt7915_hw_dev(hw); + struct mt7915_phy *phy = mt7915_hw_phy(hw); + bool band = phy != &dev->phy; + union { + u64 t64; + u32 t32[2]; + } tsf = { .t64 = timestamp, }; + u16 n; + + mutex_lock(&dev->mt76.mutex); + + n = mvif->omac_idx > HW_BSSID_MAX ? HW_BSSID_0 : mvif->omac_idx; + mt76_wr(dev, MT_LPON_UTTR0(band), tsf.t32[0]); + mt76_wr(dev, MT_LPON_UTTR1(band), tsf.t32[1]); + /* TSF software adjust*/ + mt76_rmw(dev, MT_LPON_TCR(band, n), MT_LPON_TCR_SW_MODE, + MT_LPON_TCR_SW_ADJUST); mutex_unlock(&dev->mt76.mutex); } @@ -1036,6 +1064,7 @@ const struct ieee80211_ops mt7915_ops = { .get_stats = mt7915_get_stats, .get_tsf = mt7915_get_tsf, .set_tsf = mt7915_set_tsf, + .offset_tsf = mt7915_offset_tsf, .get_survey = mt76_get_survey, .get_antenna = mt76_get_antenna, .set_antenna = mt7915_set_antenna, diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/regs.h b/drivers/net/wireless/mediatek/mt76/mt7915/regs.h index efe0f2904c66..e36b30d84f07 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/regs.h +++ b/drivers/net/wireless/mediatek/mt76/mt7915/regs.h @@ -124,6 +124,8 @@ #define MT_LPON_TCR(_band, n) MT_WF_LPON(_band, 0x0a8 + (n) * 4) #define MT_LPON_TCR_SW_MODE GENMASK(1, 0) #define MT_LPON_TCR_SW_WRITE BIT(0) +#define MT_LPON_TCR_SW_ADJUST BIT(1) +#define MT_LPON_TCR_SW_READ GENMASK(1, 0) /* MIB: band 0(0x24800), band 1(0xa4800) */ #define MT_WF_MIB_BASE(_band) ((_band) ? 0xa4800 : 0x24800)