From 4a878b9f8916eaeb5f8cea1379956b485e32450f Mon Sep 17 00:00:00 2001 From: Sujith Manoharan Date: Fri, 6 Dec 2013 16:28:40 +0530 Subject: [PATCH] ath9k: Initialize baseband for DFS channels Certain baseband registers require different values to be programmed when operating in a DFS channel to ensure that radar detection works correctly. This is required for AR9300, AR9340 and AR9580. Signed-off-by: Sujith Manoharan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ar9003_hw.c | 6 ++++++ drivers/net/wireless/ath/ath9k/ar9003_phy.c | 6 ++++++ drivers/net/wireless/ath/ath9k/hw.h | 1 + 3 files changed, 13 insertions(+) diff --git a/drivers/net/wireless/ath/ath9k/ar9003_hw.c b/drivers/net/wireless/ath/ath9k/ar9003_hw.c index d8c1eee8ea53..4e8ae4a79dc0 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_hw.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_hw.c @@ -152,6 +152,8 @@ static void ar9003_hw_init_mode_regs(struct ath_hw *ah) ar9340Modes_fast_clock_1p0); INIT_INI_ARRAY(&ah->iniCckfirJapan2484, ar9340_1p0_baseband_core_txfir_coeff_japan_2484); + INIT_INI_ARRAY(&ah->ini_dfs, + ar9340_1p0_baseband_postamble_dfs_channel); if (!ah->is_clk_25mhz) INIT_INI_ARRAY(&ah->iniAdditional, @@ -340,6 +342,8 @@ static void ar9003_hw_init_mode_regs(struct ath_hw *ah) ar9580_1p0_modes_fast_clock); INIT_INI_ARRAY(&ah->iniCckfirJapan2484, ar9580_1p0_baseband_core_txfir_coeff_japan_2484); + INIT_INI_ARRAY(&ah->ini_dfs, + ar9580_1p0_baseband_postamble_dfs_channel); } else if (AR_SREV_9565_11_OR_LATER(ah)) { INIT_INI_ARRAY(&ah->iniMac[ATH_INI_CORE], ar9565_1p1_mac_core); @@ -458,6 +462,8 @@ static void ar9003_hw_init_mode_regs(struct ath_hw *ah) ar9300Modes_fast_clock_2p2); INIT_INI_ARRAY(&ah->iniCckfirJapan2484, ar9300_2p2_baseband_core_txfir_coeff_japan_2484); + INIT_INI_ARRAY(&ah->ini_dfs, + ar9300_2p2_baseband_postamble_dfs_channel); } } diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c index 39b71b3d6919..9f051a08e143 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c @@ -1332,6 +1332,7 @@ static void ar9003_hw_ani_cache_ini_regs(struct ath_hw *ah) static void ar9003_hw_set_radar_params(struct ath_hw *ah, struct ath_hw_radar_conf *conf) { + unsigned int regWrites = 0; u32 radar_0 = 0, radar_1 = 0; if (!conf) { @@ -1358,6 +1359,11 @@ static void ar9003_hw_set_radar_params(struct ath_hw *ah, REG_SET_BIT(ah, AR_PHY_RADAR_EXT, AR_PHY_RADAR_EXT_ENA); else REG_CLR_BIT(ah, AR_PHY_RADAR_EXT, AR_PHY_RADAR_EXT_ENA); + + if (AR_SREV_9300(ah) || AR_SREV_9340(ah) || AR_SREV_9580(ah)) { + REG_WRITE_ARRAY(&ah->ini_dfs, + IS_CHAN_HT40(ah->curchan) ? 2 : 1, regWrites); + } } static void ar9003_hw_set_radar_conf(struct ath_hw *ah) diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h index e50843600989..7490047acd11 100644 --- a/drivers/net/wireless/ath/ath9k/hw.h +++ b/drivers/net/wireless/ath/ath9k/hw.h @@ -864,6 +864,7 @@ struct ath_hw { u32 gpio_mask; u32 gpio_val; + struct ar5416IniArray ini_dfs; struct ar5416IniArray iniModes; struct ar5416IniArray iniCommon; struct ar5416IniArray iniBB_RfGain; -- 2.20.1