From patchwork Tue Jun 16 09:16:24 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Chuang X-Patchwork-Id: 215334 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=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, 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 54E17C433E1 for ; Tue, 16 Jun 2020 09:16:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 35CCD20679 for ; Tue, 16 Jun 2020 09:16:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727980AbgFPJQy (ORCPT ); Tue, 16 Jun 2020 05:16:54 -0400 Received: from rtits2.realtek.com ([211.75.126.72]:46540 "EHLO rtits2.realtek.com.tw" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727065AbgFPJQt (ORCPT ); Tue, 16 Jun 2020 05:16:49 -0400 Authenticated-By: X-SpamFilter-By: ArmorX SpamTrap 5.69 with qID 05G9GX6i8021732, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexmb06.realtek.com.tw[172.21.6.99]) by rtits2.realtek.com.tw (8.15.2/2.66/5.86) with ESMTPS id 05G9GX6i8021732 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Tue, 16 Jun 2020 17:16:33 +0800 Received: from RTEXMB04.realtek.com.tw (172.21.6.97) by RTEXMB06.realtek.com.tw (172.21.6.99) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1779.2; Tue, 16 Jun 2020 17:16:33 +0800 Received: from localhost.localdomain (172.21.68.128) by RTEXMB04.realtek.com.tw (172.21.6.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1779.2; Tue, 16 Jun 2020 17:16:32 +0800 From: To: CC: , , Subject: [PATCH v4 6/7] rtw88: 8821c: add false alarm statistics Date: Tue, 16 Jun 2020 17:16:24 +0800 Message-ID: <20200616091625.26489-7-yhchuang@realtek.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200616091625.26489-1-yhchuang@realtek.com> References: <20200616091625.26489-1-yhchuang@realtek.com> MIME-Version: 1.0 X-Originating-IP: [172.21.68.128] X-ClientProxiedBy: RTEXMB02.realtek.com.tw (172.21.6.95) To RTEXMB04.realtek.com.tw (172.21.6.97) Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Tzu-En Huang False alarm statistics can be used to adjust the RX gain. This helps the driver to adapt to different circumstances. Implement rtw_chip_ops::false_alarm_statistics() for 8821c. Reviewed-by: Sebastian Andrzej Siewior Signed-off-by: Tzu-En Huang Signed-off-by: Yan-Hsuan Chuang --- drivers/net/wireless/realtek/rtw88/rtw8821c.c | 53 +++++++++++++++++++ drivers/net/wireless/realtek/rtw88/rtw8821c.h | 10 ++++ 2 files changed, 63 insertions(+) diff --git a/drivers/net/wireless/realtek/rtw88/rtw8821c.c b/drivers/net/wireless/realtek/rtw88/rtw8821c.c index bf1a2c92f2a5..ffcb427468d7 100644 --- a/drivers/net/wireless/realtek/rtw88/rtw8821c.c +++ b/drivers/net/wireless/realtek/rtw88/rtw8821c.c @@ -511,6 +511,58 @@ static void rtw8821c_set_tx_power_index(struct rtw_dev *rtwdev) } } +static void rtw8821c_false_alarm_statistics(struct rtw_dev *rtwdev) +{ + struct rtw_dm_info *dm_info = &rtwdev->dm_info; + u32 cck_enable; + u32 cck_fa_cnt; + u32 ofdm_fa_cnt; + u32 crc32_cnt; + u32 cca32_cnt; + + cck_enable = rtw_read32(rtwdev, REG_RXPSEL) & BIT(28); + cck_fa_cnt = rtw_read16(rtwdev, REG_FA_CCK); + ofdm_fa_cnt = rtw_read16(rtwdev, REG_FA_OFDM); + + dm_info->cck_fa_cnt = cck_fa_cnt; + dm_info->ofdm_fa_cnt = ofdm_fa_cnt; + if (cck_enable) + dm_info->total_fa_cnt += cck_fa_cnt; + dm_info->total_fa_cnt = ofdm_fa_cnt; + + crc32_cnt = rtw_read32(rtwdev, REG_CRC_CCK); + dm_info->cck_ok_cnt = FIELD_GET(GENMASK(15, 0), crc32_cnt); + dm_info->cck_err_cnt = FIELD_GET(GENMASK(31, 16), crc32_cnt); + + crc32_cnt = rtw_read32(rtwdev, REG_CRC_OFDM); + dm_info->ofdm_ok_cnt = FIELD_GET(GENMASK(15, 0), crc32_cnt); + dm_info->ofdm_err_cnt = FIELD_GET(GENMASK(31, 16), crc32_cnt); + + crc32_cnt = rtw_read32(rtwdev, REG_CRC_HT); + dm_info->ht_ok_cnt = FIELD_GET(GENMASK(15, 0), crc32_cnt); + dm_info->ht_err_cnt = FIELD_GET(GENMASK(31, 16), crc32_cnt); + + crc32_cnt = rtw_read32(rtwdev, REG_CRC_VHT); + dm_info->vht_ok_cnt = FIELD_GET(GENMASK(15, 0), crc32_cnt); + dm_info->vht_err_cnt = FIELD_GET(GENMASK(31, 16), crc32_cnt); + + cca32_cnt = rtw_read32(rtwdev, REG_CCA_OFDM); + dm_info->ofdm_cca_cnt = FIELD_GET(GENMASK(31, 16), cca32_cnt); + dm_info->total_cca_cnt = dm_info->ofdm_cca_cnt; + if (cck_enable) { + cca32_cnt = rtw_read32(rtwdev, REG_CCA_CCK); + dm_info->cck_cca_cnt = FIELD_GET(GENMASK(15, 0), cca32_cnt); + dm_info->total_cca_cnt += dm_info->cck_cca_cnt; + } + + rtw_write32_set(rtwdev, REG_FAS, BIT(17)); + rtw_write32_clr(rtwdev, REG_FAS, BIT(17)); + rtw_write32_clr(rtwdev, REG_RXDESC, BIT(15)); + rtw_write32_set(rtwdev, REG_RXDESC, BIT(15)); + rtw_write32_set(rtwdev, REG_CNTRST, BIT(0)); + rtw_write32_clr(rtwdev, REG_CNTRST, BIT(0)); +} + static struct rtw_pwr_seq_cmd trans_carddis_to_cardemu_8821c[] = { {0x0086, RTW_PWR_CUT_ALL_MSK, @@ -948,6 +1000,7 @@ static struct rtw_chip_ops rtw8821c_ops = { .set_antenna = NULL, .set_tx_power_index = rtw8821c_set_tx_power_index, .cfg_ldo25 = rtw8821c_cfg_ldo25, + .false_alarm_statistics = rtw8821c_false_alarm_statistics, }; struct rtw_chip_info rtw8821c_hw_spec = { diff --git a/drivers/net/wireless/realtek/rtw88/rtw8821c.h b/drivers/net/wireless/realtek/rtw88/rtw8821c.h index 741f78829c17..3b7d12bf7728 100644 --- a/drivers/net/wireless/realtek/rtw88/rtw8821c.h +++ b/drivers/net/wireless/realtek/rtw88/rtw8821c.h @@ -183,13 +183,16 @@ _rtw_write32s_mask(struct rtw_dev *rtwdev, u32 addr, u32 mask, u32 data) #define REG_ACBB0 0x948 #define REG_ACBBRXFIR 0x94c #define REG_ACGG2TBL 0x958 +#define REG_FAS 0x9a4 #define REG_RXSB 0xa00 #define REG_ADCINI 0xa04 #define REG_TXSF2 0xa24 #define REG_TXSF6 0xa28 +#define REG_FA_CCK 0xa5c #define REG_RXDESC 0xa2c #define REG_ENTXCCK 0xa80 #define REG_TXFILTER 0xaac +#define REG_CNTRST 0xb58 #define REG_AGCTR_A 0xc08 #define REG_TXSCALE_A 0xc1c #define REG_TXDFIR 0xc20 @@ -201,6 +204,13 @@ _rtw_write32s_mask(struct rtw_dev *rtwdev, u32 addr, u32 mask, u32 data) #define REG_RFEINV 0xcbc #define REG_AGCTR_B 0xe08 #define REG_RXIGI_B 0xe50 +#define REG_CRC_CCK 0xf04 +#define REG_CRC_OFDM 0xf14 +#define REG_CRC_HT 0xf10 +#define REG_CRC_VHT 0xf0c +#define REG_CCA_OFDM 0xf08 +#define REG_FA_OFDM 0xf48 +#define REG_CCA_CCK 0xfcc #define REG_ANTWT 0x1904 #define REG_IQKFAILMSK 0x1bf0