From 6b42e8d03bef975085c0397806d00fbd1df67eb8 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Mon, 26 Apr 2010 15:04:35 -0400 Subject: [PATCH] ath9k_hw: fix fast clock handling for 5GHz channels Combine multiple checks that were supposed to check for the same conditions, but didn't. Always enable fast PLL clock on AR9280 2.0 Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ar5008_phy.c | 5 ++--- drivers/net/wireless/ath/ath9k/ar9002_phy.c | 16 ++++++---------- drivers/net/wireless/ath/ath9k/ar9003_phy.c | 4 ++-- drivers/net/wireless/ath/ath9k/hw.c | 8 ++++++-- drivers/net/wireless/ath/ath9k/hw.h | 5 ++--- 5 files changed, 18 insertions(+), 20 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/ar5008_phy.c b/drivers/net/wireless/ath/ath9k/ar5008_phy.c index de8ce1291a46..b2c17c98bb38 100644 --- a/drivers/net/wireless/ath/ath9k/ar5008_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar5008_phy.c @@ -850,7 +850,7 @@ static int ar5008_hw_process_ini(struct ath_hw *ah, REG_WRITE_ARRAY(&ah->iniBB_RfGain, freqIndex, regWrites); - if (AR_SREV_9280_20(ah) && IS_CHAN_A_5MHZ_SPACED(chan)) { + if (IS_CHAN_A_FAST_CLOCK(ah, chan)) { REG_WRITE_ARRAY(&ah->iniModesAdditional, modesIndex, regWrites); } @@ -892,8 +892,7 @@ static void ar5008_hw_set_rfmode(struct ath_hw *ah, struct ath9k_channel *chan) rfMode |= (IS_CHAN_5GHZ(chan)) ? AR_PHY_MODE_RF5GHZ : AR_PHY_MODE_RF2GHZ; - if ((AR_SREV_9280_20(ah) || AR_SREV_9300_20_OR_LATER(ah)) - && IS_CHAN_A_5MHZ_SPACED(chan)) + if (IS_CHAN_A_FAST_CLOCK(ah, chan)) rfMode |= (AR_PHY_MODE_DYNAMIC | AR_PHY_MODE_DYN_CCK_DISABLE); REG_WRITE(ah, AR_PHY_MODE, rfMode); diff --git a/drivers/net/wireless/ath/ath9k/ar9002_phy.c b/drivers/net/wireless/ath/ath9k/ar9002_phy.c index 18cfe1a9781c..ed314e89bfe1 100644 --- a/drivers/net/wireless/ath/ath9k/ar9002_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar9002_phy.c @@ -455,16 +455,12 @@ static u32 ar9002_hw_compute_pll_control(struct ath_hw *ah, pll |= SM(0x2, AR_RTC_9160_PLL_CLKSEL); if (chan && IS_CHAN_5GHZ(chan)) { - pll |= SM(0x28, AR_RTC_9160_PLL_DIV); - - - if (AR_SREV_9280_20(ah)) { - if (((chan->channel % 20) == 0) - || ((chan->channel % 10) == 0)) - pll = 0x2850; - else - pll = 0x142c; - } + if (IS_CHAN_A_FAST_CLOCK(ah, chan)) + pll = 0x142c; + else if (AR_SREV_9280_20(ah)) + pll = 0x2850; + else + pll |= SM(0x28, AR_RTC_9160_PLL_DIV); } else { pll |= SM(0x2c, AR_RTC_9160_PLL_DIV); } diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c index bf8ec687f9e0..806f4a54b620 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c @@ -583,7 +583,7 @@ static int ar9003_hw_process_ini(struct ath_hw *ah, * For 5GHz channels requiring Fast Clock, apply * different modal values. */ - if (IS_CHAN_A_5MHZ_SPACED(chan)) + if (IS_CHAN_A_FAST_CLOCK(ah, chan)) REG_WRITE_ARRAY(&ah->iniModesAdditional, modesIndex, regWrites); @@ -613,7 +613,7 @@ static void ar9003_hw_set_rfmode(struct ath_hw *ah, rfMode |= (IS_CHAN_B(chan) || IS_CHAN_G(chan)) ? AR_PHY_MODE_DYNAMIC : AR_PHY_MODE_OFDM; - if (IS_CHAN_A_5MHZ_SPACED(chan)) + if (IS_CHAN_A_FAST_CLOCK(ah, chan)) rfMode |= (AR_PHY_MODE_DYNAMIC | AR_PHY_MODE_DYN_CCK_DISABLE); REG_WRITE(ah, AR_PHY_MODE, rfMode); diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index 7bb700151ca6..8f37f1c2a380 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -1228,8 +1228,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan, (chan->channel != ah->curchan->channel) && ((chan->channelFlags & CHANNEL_ALL) == (ah->curchan->channelFlags & CHANNEL_ALL)) && - !(AR_SREV_9280(ah) || IS_CHAN_A_5MHZ_SPACED(chan) || - IS_CHAN_A_5MHZ_SPACED(ah->curchan))) { + !AR_SREV_9280(ah)) { if (ath9k_hw_channel_change(ah, chan)) { ath9k_hw_loadnf(ah, ah->curchan); @@ -2202,6 +2201,11 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah) pCap->txs_len = sizeof(struct ar9003_txs); } else { pCap->tx_desc_len = sizeof(struct ath_desc); + if (AR_SREV_9280_20(ah) && + ((ah->eep_ops->get_eeprom(ah, EEP_MINOR_REV) <= + AR5416_EEP_MINOR_VER_16) || + ah->eep_ops->get_eeprom(ah, EEP_FSTCLK_5G))) + pCap->hw_caps |= ATH9K_HW_CAP_FASTCLOCK; } if (AR_SREV_9300_20_OR_LATER(ah)) diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h index 7a1347b2453f..bc682da28b2a 100644 --- a/drivers/net/wireless/ath/ath9k/hw.h +++ b/drivers/net/wireless/ath/ath9k/hw.h @@ -369,10 +369,9 @@ struct ath9k_channel { #define IS_CHAN_2GHZ(_c) (((_c)->channelFlags & CHANNEL_2GHZ) != 0) #define IS_CHAN_HALF_RATE(_c) (((_c)->channelFlags & CHANNEL_HALF) != 0) #define IS_CHAN_QUARTER_RATE(_c) (((_c)->channelFlags & CHANNEL_QUARTER) != 0) -#define IS_CHAN_A_5MHZ_SPACED(_c) \ +#define IS_CHAN_A_FAST_CLOCK(_ah, _c) \ ((((_c)->channelFlags & CHANNEL_5GHZ) != 0) && \ - (((_c)->channel % 20) != 0) && \ - (((_c)->channel % 10) != 0)) + ((_ah)->caps.hw_caps & ATH9K_HW_CAP_FASTCLOCK)) /* These macros check chanmode and not channelFlags */ #define IS_CHAN_B(_c) ((_c)->chanmode == CHANNEL_B) -- 2.39.5