| /* |
| * Copyright (C) 2010 Bruno Randolf <br1@einfach.org> |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| */ |
| #ifndef ANI_H |
| #define ANI_H |
| |
| #include "../ath.h" |
| |
| enum ath5k_phy_error_code; |
| |
| /* these thresholds are relative to the ATH5K_ANI_LISTEN_PERIOD */ |
| #define ATH5K_ANI_LISTEN_PERIOD 100 |
| #define ATH5K_ANI_OFDM_TRIG_HIGH 500 |
| #define ATH5K_ANI_OFDM_TRIG_LOW 200 |
| #define ATH5K_ANI_CCK_TRIG_HIGH 200 |
| #define ATH5K_ANI_CCK_TRIG_LOW 100 |
| |
| /* average beacon RSSI thresholds */ |
| #define ATH5K_ANI_RSSI_THR_HIGH 40 |
| #define ATH5K_ANI_RSSI_THR_LOW 7 |
| |
| /* maximum available levels */ |
| #define ATH5K_ANI_MAX_FIRSTEP_LVL 2 |
| #define ATH5K_ANI_MAX_NOISE_IMM_LVL 1 |
| |
| |
| /** |
| * enum ath5k_ani_mode - mode for ANI / noise sensitivity |
| * |
| * @ATH5K_ANI_MODE_OFF: Turn ANI off. This can be useful to just stop the ANI |
| * algorithm after it has been on auto mode. |
| * @ATH5K_ANI_MODE_MANUAL_LOW: Manually set all immunity parameters to low, |
| * maximizing sensitivity. ANI will not run. |
| * @ATH5K_ANI_MODE_MANUAL_HIGH: Manually set all immunity parameters to high, |
| * minimizing sensitivity. ANI will not run. |
| * @ATH5K_ANI_MODE_AUTO: Automatically control immunity parameters based on the |
| * amount of OFDM and CCK frame errors (default). |
| */ |
| enum ath5k_ani_mode { |
| ATH5K_ANI_MODE_OFF = 0, |
| ATH5K_ANI_MODE_MANUAL_LOW = 1, |
| ATH5K_ANI_MODE_MANUAL_HIGH = 2, |
| ATH5K_ANI_MODE_AUTO = 3 |
| }; |
| |
| |
| /** |
| * struct ath5k_ani_state - ANI state and associated counters |
| * @ani_mode: One of enum ath5k_ani_mode |
| * @noise_imm_level: Noise immunity level |
| * @spur_level: Spur immunity level |
| * @firstep_level: FIRstep level |
| * @ofdm_weak_sig: OFDM weak signal detection state (on/off) |
| * @cck_weak_sig: CCK weak signal detection state (on/off) |
| * @max_spur_level: Max spur immunity level (chip specific) |
| * @listen_time: Listen time |
| * @ofdm_errors: OFDM timing error count |
| * @cck_errors: CCK timing error count |
| * @last_cc: The &struct ath_cycle_counters (for stats) |
| * @last_listen: Listen time from previous run (for stats) |
| * @last_ofdm_errors: OFDM timing error count from previous run (for tats) |
| * @last_cck_errors: CCK timing error count from previous run (for stats) |
| * @sum_ofdm_errors: Sum of OFDM timing errors (for stats) |
| * @sum_cck_errors: Sum of all CCK timing errors (for stats) |
| */ |
| struct ath5k_ani_state { |
| enum ath5k_ani_mode ani_mode; |
| |
| /* state */ |
| int noise_imm_level; |
| int spur_level; |
| int firstep_level; |
| bool ofdm_weak_sig; |
| bool cck_weak_sig; |
| |
| int max_spur_level; |
| |
| /* used by the algorithm */ |
| unsigned int listen_time; |
| unsigned int ofdm_errors; |
| unsigned int cck_errors; |
| |
| /* debug/statistics only: numbers from last ANI calibration */ |
| struct ath_cycle_counters last_cc; |
| unsigned int last_listen; |
| unsigned int last_ofdm_errors; |
| unsigned int last_cck_errors; |
| unsigned int sum_ofdm_errors; |
| unsigned int sum_cck_errors; |
| }; |
| |
| void ath5k_ani_init(struct ath5k_hw *ah, enum ath5k_ani_mode mode); |
| void ath5k_ani_mib_intr(struct ath5k_hw *ah); |
| void ath5k_ani_calibration(struct ath5k_hw *ah); |
| void ath5k_ani_phy_error_report(struct ath5k_hw *ah, |
| enum ath5k_phy_error_code phyerr); |
| |
| /* for manual control */ |
| void ath5k_ani_set_noise_immunity_level(struct ath5k_hw *ah, int level); |
| void ath5k_ani_set_spur_immunity_level(struct ath5k_hw *ah, int level); |
| void ath5k_ani_set_firstep_level(struct ath5k_hw *ah, int level); |
| void ath5k_ani_set_ofdm_weak_signal_detection(struct ath5k_hw *ah, bool on); |
| void ath5k_ani_set_cck_weak_signal_detection(struct ath5k_hw *ah, bool on); |
| |
| void ath5k_ani_print_counters(struct ath5k_hw *ah); |
| |
| #endif /* ANI_H */ |
