Return-path: Received: from smtp.codeaurora.org ([198.145.29.96]:36840 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758617AbdKPICR (ORCPT ); Thu, 16 Nov 2017 03:02:17 -0500 From: Ramon Fried To: kvalo@codeaurora.org Cc: k.eugene.e@gmail.com, wcn36xx@lists.infradead.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, bjorn.andersson@linaro.org, nicolas.dechesne@linaro.org, Eyal Ilsar , Ramon Fried Subject: [PATCH v4] wcn36xx: Set default BTLE coexistence config Date: Thu, 16 Nov 2017 10:01:26 +0200 Message-Id: <20171116080126.17239-1-rfried@codeaurora.org> (sfid-20171116_090223_085858_434142DE) Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Eyal Ilsar If the value for the firmware configuration parameters BTC_STATIC_LEN_LE_BT and BTC_STATIC_LEN_LE_WLAN are not set the duty cycle between BT and WLAN is such that if BT (including BLE) is active WLAN gets 0 bandwidth. When tuning these parameters having a too high value for WLAN means that BLE performance degrades. The "sweet" point of roughly half of the maximal values was empirically found to achieve a balance between BLE and Wi-Fi coexistence performance. Signed-off-by: Eyal Ilsar Signed-off-by: Ramon Fried --- drivers/net/wireless/ath/wcn36xx/smd.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/wireless/ath/wcn36xx/smd.c b/drivers/net/wireless/ath/wcn36xx/smd.c index 9c6590d5348a..6f1e741acf3e 100644 --- a/drivers/net/wireless/ath/wcn36xx/smd.c +++ b/drivers/net/wireless/ath/wcn36xx/smd.c @@ -73,6 +73,8 @@ static struct wcn36xx_cfg_val wcn36xx_cfg_vals[] = { WCN36XX_CFG_VAL(TX_PWR_CTRL_ENABLE, 1), WCN36XX_CFG_VAL(ENABLE_CLOSE_LOOP, 1), WCN36XX_CFG_VAL(ENABLE_LPWR_IMG_TRANSITION, 0), + WCN36XX_CFG_VAL(BTC_STATIC_LEN_LE_BT, 120000), + WCN36XX_CFG_VAL(BTC_STATIC_LEN_LE_WLAN, 30000), WCN36XX_CFG_VAL(MAX_ASSOC_LIMIT, 10), WCN36XX_CFG_VAL(ENABLE_MCC_ADAPTIVE_SCHEDULER, 0), }; -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project