Return-path: Received: from s72.web-hosting.com ([198.187.29.22]:46444 "EHLO s72.web-hosting.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754481AbbBEEtp (ORCPT ); Wed, 4 Feb 2015 23:49:45 -0500 Received: from [117.199.130.171] (port=13666 helo=sujith-pixel.qualcomm.com) by server72.web-hosting.com with esmtpsa (UNKNOWN:AES128-SHA256:128) (Exim 4.82) (envelope-from ) id 1YJENs-002ASp-98 for linux-wireless@vger.kernel.org; Wed, 04 Feb 2015 23:49:44 -0500 From: Sujith Manoharan To: linux-wireless@vger.kernel.org Subject: [PATCH 4/7] ath9k: Check MCI PowerSave state Date: Thu, 5 Feb 2015 10:22:41 +0530 Message-Id: <1423111964-19626-5-git-send-email-sujith@msujith.org> (sfid-20150205_054953_849090_95586BCF) In-Reply-To: <1423111964-19626-1-git-send-email-sujith@msujith.org> References: <1423111964-19626-1-git-send-email-sujith@msujith.org> Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Sujith Manoharan The power save state of MCI has to be disabled when enabling WoW sleep, check this properly. ar9003_mci_state() doesn't handle MCI_STATE_GET_WLAN_PS_STATE right now, but this will be done later when proper support for MCI/PS is added. Signed-off-by: Sujith Manoharan --- drivers/net/wireless/ath/ath9k/ar9003_mci.h | 7 +++++++ drivers/net/wireless/ath/ath9k/ar9003_wow.c | 16 +++++++++++++++- 2 files changed, 22 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mci.h b/drivers/net/wireless/ath/ath9k/ar9003_mci.h index 19800af..cef2010 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_mci.h +++ b/drivers/net/wireless/ath/ath9k/ar9003_mci.h @@ -188,6 +188,13 @@ enum mci_bt_state { MCI_BT_CAL }; +enum mci_ps_state { + MCI_PS_DISABLE, + MCI_PS_ENABLE, + MCI_PS_ENABLE_OFF, + MCI_PS_ENABLE_ON +}; + /* Type of state query */ enum mci_state_type { MCI_STATE_ENABLE, diff --git a/drivers/net/wireless/ath/ath9k/ar9003_wow.c b/drivers/net/wireless/ath/ath9k/ar9003_wow.c index 721caf3..bf3378f0 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_wow.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_wow.c @@ -20,11 +20,25 @@ #include "reg_wow.h" #include "hw-ops.h" +static void ath9k_hw_set_sta_powersave(struct ath_hw *ah) +{ + if (!ath9k_hw_mci_is_enabled(ah)) + goto set; + /* + * If MCI is being used, set PWR_SAV only when MCI's + * PS state is disabled. + */ + if (ar9003_mci_state(ah, MCI_STATE_GET_WLAN_PS_STATE) != MCI_PS_DISABLE) + return; +set: + REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV); +} + static void ath9k_hw_set_powermode_wow_sleep(struct ath_hw *ah) { struct ath_common *common = ath9k_hw_common(ah); - REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV); + ath9k_hw_set_sta_powersave(ah); /* set rx disable bit */ REG_WRITE(ah, AR_CR, AR_CR_RXD); -- 2.2.2