From 4e8c14e9587c38f4cce8049c766935629fdb8d46 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Thu, 11 Nov 2010 03:18:38 +0100 Subject: [PATCH] ath9k_hw: add a private op for configuring radar pulse detection Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ar5008_phy.c | 32 ++++++++++++++++++ drivers/net/wireless/ath/ath9k/ar9003_phy.c | 32 ++++++++++++++++++ drivers/net/wireless/ath/ath9k/hw.h | 36 +++++++++++++++++++++ 3 files changed, 100 insertions(+) diff --git a/drivers/net/wireless/ath/ath9k/ar5008_phy.c b/drivers/net/wireless/ath/ath9k/ar5008_phy.c index c83a22cfbe1e..3686811cc8df 100644 --- a/drivers/net/wireless/ath/ath9k/ar5008_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar5008_phy.c @@ -1579,6 +1579,37 @@ static void ar5008_hw_set_nf_limits(struct ath_hw *ah) ah->nf_5g.nominal = AR_PHY_CCA_NOM_VAL_5416_5GHZ; } +static void ar5008_hw_set_radar_params(struct ath_hw *ah, + struct ath_hw_radar_conf *conf) +{ + u32 radar_0 = 0, radar_1 = 0; + + if (!conf) { + REG_CLR_BIT(ah, AR_PHY_RADAR_0, AR_PHY_RADAR_0_ENA); + return; + } + + radar_0 |= AR_PHY_RADAR_0_ENA | AR_PHY_RADAR_0_FFT_ENA; + radar_0 |= SM(conf->fir_power, AR_PHY_RADAR_0_FIRPWR); + radar_0 |= SM(conf->radar_rssi, AR_PHY_RADAR_0_RRSSI); + radar_0 |= SM(conf->pulse_height, AR_PHY_RADAR_0_HEIGHT); + radar_0 |= SM(conf->pulse_rssi, AR_PHY_RADAR_0_PRSSI); + radar_0 |= SM(conf->pulse_inband, AR_PHY_RADAR_0_INBAND); + + radar_1 |= AR_PHY_RADAR_1_MAX_RRSSI; + radar_1 |= AR_PHY_RADAR_1_BLOCK_CHECK; + radar_1 |= SM(conf->pulse_maxlen, AR_PHY_RADAR_1_MAXLEN); + radar_1 |= SM(conf->pulse_inband_step, AR_PHY_RADAR_1_RELSTEP_THRESH); + radar_1 |= SM(conf->radar_inband, AR_PHY_RADAR_1_RELPWR_THRESH); + + REG_WRITE(ah, AR_PHY_RADAR_0, radar_0); + REG_WRITE(ah, AR_PHY_RADAR_1, radar_1); + if (conf->ext_channel) + 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); +} + void ar5008_hw_attach_phy_ops(struct ath_hw *ah) { struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah); @@ -1609,6 +1640,7 @@ void ar5008_hw_attach_phy_ops(struct ath_hw *ah) priv_ops->restore_chainmask = ar5008_restore_chainmask; priv_ops->set_diversity = ar5008_set_diversity; priv_ops->do_getnf = ar5008_hw_do_getnf; + priv_ops->set_radar_params = ar5008_hw_set_radar_params; if (modparam_force_new_ani) { priv_ops->ani_control = ar5008_hw_ani_control_new; diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c index 44c5454b2ad8..f676b21ac437 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c @@ -1113,6 +1113,37 @@ static void ar9003_hw_ani_cache_ini_regs(struct ath_hw *ah) aniState->mrcCCKOff = !ATH9K_ANI_ENABLE_MRC_CCK; } +static void ar9003_hw_set_radar_params(struct ath_hw *ah, + struct ath_hw_radar_conf *conf) +{ + u32 radar_0 = 0, radar_1 = 0; + + if (!conf) { + REG_CLR_BIT(ah, AR_PHY_RADAR_0, AR_PHY_RADAR_0_ENA); + return; + } + + radar_0 |= AR_PHY_RADAR_0_ENA | AR_PHY_RADAR_0_FFT_ENA; + radar_0 |= SM(conf->fir_power, AR_PHY_RADAR_0_FIRPWR); + radar_0 |= SM(conf->radar_rssi, AR_PHY_RADAR_0_RRSSI); + radar_0 |= SM(conf->pulse_height, AR_PHY_RADAR_0_HEIGHT); + radar_0 |= SM(conf->pulse_rssi, AR_PHY_RADAR_0_PRSSI); + radar_0 |= SM(conf->pulse_inband, AR_PHY_RADAR_0_INBAND); + + radar_1 |= AR_PHY_RADAR_1_MAX_RRSSI; + radar_1 |= AR_PHY_RADAR_1_BLOCK_CHECK; + radar_1 |= SM(conf->pulse_maxlen, AR_PHY_RADAR_1_MAXLEN); + radar_1 |= SM(conf->pulse_inband_step, AR_PHY_RADAR_1_RELSTEP_THRESH); + radar_1 |= SM(conf->radar_inband, AR_PHY_RADAR_1_RELPWR_THRESH); + + REG_WRITE(ah, AR_PHY_RADAR_0, radar_0); + REG_WRITE(ah, AR_PHY_RADAR_1, radar_1); + if (conf->ext_channel) + 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); +} + void ar9003_hw_attach_phy_ops(struct ath_hw *ah) { struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah); @@ -1141,6 +1172,7 @@ void ar9003_hw_attach_phy_ops(struct ath_hw *ah) priv_ops->ani_control = ar9003_hw_ani_control; priv_ops->do_getnf = ar9003_hw_do_getnf; priv_ops->ani_cache_ini_regs = ar9003_hw_ani_cache_ini_regs; + priv_ops->set_radar_params = ar9003_hw_set_radar_params; ar9003_hw_set_nf_limits(ah); memcpy(ah->nf_regs, ar9300_cca_regs, sizeof(ah->nf_regs)); diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h index 15f51c8943a1..c20a5421f870 100644 --- a/drivers/net/wireless/ath/ath9k/hw.h +++ b/drivers/net/wireless/ath/ath9k/hw.h @@ -484,6 +484,40 @@ struct ath_hw_antcomb_conf { u8 fast_div_bias; }; +/** + * struct ath_hw_radar_conf - radar detection initialization parameters + * + * @pulse_inband: threshold for checking the ratio of in-band power + * to total power for short radar pulses (half dB steps) + * @pulse_inband_step: threshold for checking an in-band power to total + * power ratio increase for short radar pulses (half dB steps) + * @pulse_height: threshold for detecting the beginning of a short + * radar pulse (dB step) + * @pulse_rssi: threshold for detecting if a short radar pulse is + * gone (dB step) + * @pulse_maxlen: maximum pulse length (0.8 us steps) + * + * @radar_rssi: RSSI threshold for starting long radar detection (dB steps) + * @radar_inband: threshold for checking the ratio of in-band power + * to total power for long radar pulses (half dB steps) + * @fir_power: threshold for detecting the end of a long radar pulse (dB) + * + * @ext_channel: enable extension channel radar detection + */ +struct ath_hw_radar_conf { + unsigned int pulse_inband; + unsigned int pulse_inband_step; + unsigned int pulse_height; + unsigned int pulse_rssi; + unsigned int pulse_maxlen; + + unsigned int radar_rssi; + unsigned int radar_inband; + int fir_power; + + bool ext_channel; +}; + /** * struct ath_hw_private_ops - callbacks used internally by hardware code * @@ -549,6 +583,8 @@ struct ath_hw_private_ops { bool (*ani_control)(struct ath_hw *ah, enum ath9k_ani_cmd cmd, int param); void (*do_getnf)(struct ath_hw *ah, int16_t nfarray[NUM_NF_READINGS]); + void (*set_radar_params)(struct ath_hw *ah, + struct ath_hw_radar_conf *conf); /* ANI */ void (*ani_cache_ini_regs)(struct ath_hw *ah); -- 2.20.1