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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-03-26 09:19:02 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-03-26 09:19:02 -0700 |
| commit | e58b9a25eeb89ab2ee05cd093f6d7bc2f34acb21 (patch) | |
| tree | 40162c796bc60f00d062b37718dc62adc970ac07 /drivers/net/wireless/iwlwifi/mvm/rx.c | |
| parent | a6025a2a861845447adeb7a11c3043039959d3a1 (diff) | |
| parent | df8c3dbee9e6f19ddb0ae8e05cdf76eb2d3b7f00 (diff) | |
| download | olio-linux-3.10-e58b9a25eeb89ab2ee05cd093f6d7bc2f34acb21.tar.xz olio-linux-3.10-e58b9a25eeb89ab2ee05cd093f6d7bc2f34acb21.zip | |
Merge tag 'arizona-extcon-asoc' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc into char-misc-next
Mark writes:
ASoC/extcon: arizona: Fix interaction between HPDET and headphone outputs
This patch series covers both ASoC and extcon subsystems and fixes an
interaction between the HPDET function and the headphone outputs - we
really shouldn't run HPDET while the headphone is active. The first
patch is a refactoring to make the extcon side easier.
Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/rx.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/rx.c | 37 |
1 files changed, 23 insertions, 14 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/rx.c b/drivers/net/wireless/iwlwifi/mvm/rx.c index 3f40ab05bbd..b0b190d0ec2 100644 --- a/drivers/net/wireless/iwlwifi/mvm/rx.c +++ b/drivers/net/wireless/iwlwifi/mvm/rx.c @@ -131,33 +131,42 @@ static void iwl_mvm_pass_packet_to_mac80211(struct iwl_mvm *mvm, static int iwl_mvm_calc_rssi(struct iwl_mvm *mvm, struct iwl_rx_phy_info *phy_info) { - u32 rssi_a, rssi_b, rssi_c, max_rssi, agc_db; + int rssi_a, rssi_b, rssi_a_dbm, rssi_b_dbm, max_rssi_dbm; + int rssi_all_band_a, rssi_all_band_b; + u32 agc_a, agc_b, max_agc; u32 val; - /* Find max rssi among 3 possible receivers. + /* Find max rssi among 2 possible receivers. * These values are measured by the Digital Signal Processor (DSP). * They should stay fairly constant even as the signal strength varies, * if the radio's Automatic Gain Control (AGC) is working right. * AGC value (see below) will provide the "interesting" info. */ + val = le32_to_cpu(phy_info->non_cfg_phy[IWL_RX_INFO_AGC_IDX]); + agc_a = (val & IWL_OFDM_AGC_A_MSK) >> IWL_OFDM_AGC_A_POS; + agc_b = (val & IWL_OFDM_AGC_B_MSK) >> IWL_OFDM_AGC_B_POS; + max_agc = max_t(u32, agc_a, agc_b); + val = le32_to_cpu(phy_info->non_cfg_phy[IWL_RX_INFO_RSSI_AB_IDX]); rssi_a = (val & IWL_OFDM_RSSI_INBAND_A_MSK) >> IWL_OFDM_RSSI_A_POS; rssi_b = (val & IWL_OFDM_RSSI_INBAND_B_MSK) >> IWL_OFDM_RSSI_B_POS; - val = le32_to_cpu(phy_info->non_cfg_phy[IWL_RX_INFO_RSSI_C_IDX]); - rssi_c = (val & IWL_OFDM_RSSI_INBAND_C_MSK) >> IWL_OFDM_RSSI_C_POS; - - val = le32_to_cpu(phy_info->non_cfg_phy[IWL_RX_INFO_AGC_IDX]); - agc_db = (val & IWL_OFDM_AGC_DB_MSK) >> IWL_OFDM_AGC_DB_POS; + rssi_all_band_a = (val & IWL_OFDM_RSSI_ALLBAND_A_MSK) >> + IWL_OFDM_RSSI_ALLBAND_A_POS; + rssi_all_band_b = (val & IWL_OFDM_RSSI_ALLBAND_B_MSK) >> + IWL_OFDM_RSSI_ALLBAND_B_POS; - max_rssi = max_t(u32, rssi_a, rssi_b); - max_rssi = max_t(u32, max_rssi, rssi_c); + /* + * dBm = rssi dB - agc dB - constant. + * Higher AGC (higher radio gain) means lower signal. + */ + rssi_a_dbm = rssi_a - IWL_RSSI_OFFSET - agc_a; + rssi_b_dbm = rssi_b - IWL_RSSI_OFFSET - agc_b; + max_rssi_dbm = max_t(int, rssi_a_dbm, rssi_b_dbm); - IWL_DEBUG_STATS(mvm, "Rssi In A %d B %d C %d Max %d AGC dB %d\n", - rssi_a, rssi_b, rssi_c, max_rssi, agc_db); + IWL_DEBUG_STATS(mvm, "Rssi In A %d B %d Max %d AGCA %d AGCB %d\n", + rssi_a_dbm, rssi_b_dbm, max_rssi_dbm, agc_a, agc_b); - /* dBm = max_rssi dB - agc dB - constant. - * Higher AGC (higher radio gain) means lower signal. */ - return max_rssi - agc_db - IWL_RSSI_OFFSET; + return max_rssi_dbm; } /* |