Return-path: Received: from mail-ew0-f46.google.com ([209.85.215.46]:37556 "EHLO mail-ew0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754532Ab0KWT0V (ORCPT ); Tue, 23 Nov 2010 14:26:21 -0500 Received: by ewy5 with SMTP id 5so2669950ewy.19 for ; Tue, 23 Nov 2010 11:26:20 -0800 (PST) Date: Tue, 23 Nov 2010 21:26:13 +0200 From: Nick Kossifidis To: ath5k-devel@lists.ath5k.org, linux-wireless@vger.kernel.org Cc: linville@tuxdriver.com, me@bobcopeland.com, mcgrof@gmail.com, jirislaby@gmail.com, nbd@openwrt.org, br1@einfach.org Subject: [PATCH 19/30] ath5k: Tweak power detector delays on RF5111/RF5112 Message-ID: <20101123192613.GS4303@makis.mantri> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-wireless-owner@vger.kernel.org List-ID: * Tweak power detector delays on AR5111/AR5112 when using half/quarter modes. Signed-off-by: Nick Kossifidis --- drivers/net/wireless/ath/ath5k/phy.c | 32 ++++++++++++++++++++++++++++++-- 1 files changed, 30 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/ath/ath5k/phy.c b/drivers/net/wireless/ath/ath5k/phy.c index 706fc46..6913a52 100644 --- a/drivers/net/wireless/ath/ath5k/phy.c +++ b/drivers/net/wireless/ath/ath5k/phy.c @@ -851,7 +851,23 @@ static int ath5k_hw_rfregs_init(struct ath5k_hw *ah, ath5k_hw_rfb_op(ah, rf_regs, ee->ee_xpd[ee_mode], AR5K_RF_PLO_SEL, true); - /* TODO: Half/quarter channel support */ + /* Tweak power detectors for half/quarter rate support */ + if (ah->ah_bwmode == AR5K_BWMODE_5MHZ || + ah->ah_bwmode == AR5K_BWMODE_10MHZ) { + u8 wait_i; + + ath5k_hw_rfb_op(ah, rf_regs, 0x1f, + AR5K_RF_WAIT_S, true); + + wait_i = (ah->ah_bwmode == AR5K_BWMODE_5MHZ) ? + 0x1f : 0x10; + + ath5k_hw_rfb_op(ah, rf_regs, wait_i, + AR5K_RF_WAIT_I, true); + ath5k_hw_rfb_op(ah, rf_regs, 3, + AR5K_RF_MAX_TIME, true); + + } } if (ah->ah_radio == AR5K_RF5112) { @@ -949,8 +965,20 @@ static int ath5k_hw_rfregs_init(struct ath5k_hw *ah, ath5k_hw_rfb_op(ah, rf_regs, ee->ee_i_gain[ee_mode], AR5K_RF_GAIN_I, true); - /* TODO: Half/quarter channel support */ + /* Tweak power detector for half/quarter rates */ + if (ah->ah_bwmode == AR5K_BWMODE_5MHZ || + ah->ah_bwmode == AR5K_BWMODE_10MHZ) { + u8 pd_delay; + pd_delay = (ah->ah_bwmode == AR5K_BWMODE_5MHZ) ? + 0xf : 0x8; + + ath5k_hw_rfb_op(ah, rf_regs, pd_delay, + AR5K_RF_PD_PERIOD_A, true); + ath5k_hw_rfb_op(ah, rf_regs, 0xf, + AR5K_RF_PD_DELAY_A, true); + + } } if (ah->ah_radio == AR5K_RF5413 &&