diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/main.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/main.c | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index e1fa70596e61..32417fd4bf5a 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -1075,6 +1075,86 @@ static void ath9k_disable_ps(struct ath_softc *sc) ath_dbg(common, PS, "PowerSave disabled\n"); } +void ath9k_spectral_scan_trigger(struct ieee80211_hw *hw) +{ + struct ath_softc *sc = hw->priv; + struct ath_hw *ah = sc->sc_ah; + struct ath_common *common = ath9k_hw_common(ah); + u32 rxfilter; + + if (!ath9k_hw_ops(ah)->spectral_scan_trigger) { + ath_err(common, "spectrum analyzer not implemented on this hardware\n"); + return; + } + + ath9k_ps_wakeup(sc); + rxfilter = ath9k_hw_getrxfilter(ah); + ath9k_hw_setrxfilter(ah, rxfilter | + ATH9K_RX_FILTER_PHYRADAR | + ATH9K_RX_FILTER_PHYERR); + + /* TODO: usually this should not be neccesary, but for some reason + * (or in some mode?) the trigger must be called after the + * configuration, otherwise the register will have its values reset + * (on my ar9220 to value 0x01002310) + */ + ath9k_spectral_scan_config(hw, sc->spectral_mode); + ath9k_hw_ops(ah)->spectral_scan_trigger(ah); + ath9k_ps_restore(sc); +} + +int ath9k_spectral_scan_config(struct ieee80211_hw *hw, + enum spectral_mode spectral_mode) +{ + struct ath_softc *sc = hw->priv; + struct ath_hw *ah = sc->sc_ah; + struct ath_common *common = ath9k_hw_common(ah); + struct ath_spec_scan param; + + if (!ath9k_hw_ops(ah)->spectral_scan_trigger) { + ath_err(common, "spectrum analyzer not implemented on this hardware\n"); + return -1; + } + + /* NOTE: this will generate a few samples ... + * + * TODO: review default parameters, and/or define an interface to set + * them. + */ + param.enabled = 1; + param.short_repeat = true; + param.count = 8; + param.endless = false; + param.period = 0xFF; + param.fft_period = 0xF; + + switch (spectral_mode) { + case SPECTRAL_DISABLED: + param.enabled = 0; + break; + case SPECTRAL_BACKGROUND: + /* send endless samples. + * TODO: is this really useful for "background"? + */ + param.endless = 1; + break; + case SPECTRAL_CHANSCAN: + break; + case SPECTRAL_MANUAL: + break; + default: + return -1; + } + + ath9k_ps_wakeup(sc); + ath9k_hw_ops(ah)->spectral_scan_config(ah, ¶m); + ath9k_ps_restore(sc); + + sc->spectral_mode = spectral_mode; + + return 0; +} + static int ath9k_config(struct ieee80211_hw *hw, u32 changed) { struct ath_softc *sc = hw->priv; @@ -1188,6 +1268,11 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) */ if (old_pos >= 0) ath_update_survey_nf(sc, old_pos); + + /* perform spectral scan if requested. */ + if (sc->scanning && sc->spectral_mode == SPECTRAL_CHANSCAN) + ath9k_spectral_scan_trigger(hw); + } if (changed & IEEE80211_CONF_CHANGE_POWER) { @@ -2240,6 +2325,19 @@ static void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled) } #endif +static void ath9k_sw_scan_start(struct ieee80211_hw *hw) +{ + struct ath_softc *sc = hw->priv; + + sc->scanning = 1; +} + +static void ath9k_sw_scan_complete(struct ieee80211_hw *hw) +{ + struct ath_softc *sc = hw->priv; + + sc->scanning = 0; +} struct ieee80211_ops ath9k_ops = { .tx = ath9k_tx, @@ -2286,4 +2384,6 @@ struct ieee80211_ops ath9k_ops = { .sta_add_debugfs = ath9k_sta_add_debugfs, .sta_remove_debugfs = ath9k_sta_remove_debugfs, #endif + .sw_scan_start = ath9k_sw_scan_start, + .sw_scan_complete = ath9k_sw_scan_complete, }; |