8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
29  * or reducing sensitivity as necessary.
51  * Also we regularly check the amount of errors and lower or raise immunity as
215  * @as: The &struct ath5k_ani_state
223 ath5k_ani_raise_immunity(struct ath5k_hw *ah, struct ath5k_ani_state *as,  in ath5k_ani_raise_immunity()  argument
232 	if (as->noise_imm_level < ATH5K_ANI_MAX_NOISE_IMM_LVL) {  in ath5k_ani_raise_immunity()
233 		ath5k_ani_set_noise_immunity_level(ah, as->noise_imm_level + 1);  in ath5k_ani_raise_immunity()
239 	    as->spur_level < ah->ani_state.max_spur_level) {  in ath5k_ani_raise_immunity()
240 		ath5k_ani_set_spur_immunity_level(ah, as->spur_level + 1);  in ath5k_ani_raise_immunity()
246 		if (as->firstep_level < ATH5K_ANI_MAX_FIRSTEP_LVL)  in ath5k_ani_raise_immunity()
247 			ath5k_ani_set_firstep_level(ah, as->firstep_level + 1);  in ath5k_ani_raise_immunity()
262 		if (ofdm_trigger && as->ofdm_weak_sig) {  in ath5k_ani_raise_immunity()
267 		/* as a last resort or CCK: raise firstep level */  in ath5k_ani_raise_immunity()
268 		if (as->firstep_level < ATH5K_ANI_MAX_FIRSTEP_LVL) {  in ath5k_ani_raise_immunity()
269 			ath5k_ani_set_firstep_level(ah, as->firstep_level + 1);  in ath5k_ani_raise_immunity()
277 		if (ofdm_trigger && !as->ofdm_weak_sig)  in ath5k_ani_raise_immunity()
279 		if (as->firstep_level < ATH5K_ANI_MAX_FIRSTEP_LVL)  in ath5k_ani_raise_immunity()
280 			ath5k_ani_set_firstep_level(ah, as->firstep_level + 1);  in ath5k_ani_raise_immunity()
287 		if (ofdm_trigger && as->ofdm_weak_sig)  in ath5k_ani_raise_immunity()
289 		if (as->firstep_level > 0)  in ath5k_ani_raise_immunity()
295 	if (as->cck_weak_sig == true) {  in ath5k_ani_raise_immunity()
304  * @as: The &struct ath5k_ani_state
310 ath5k_ani_lower_immunity(struct ath5k_hw *ah, struct ath5k_ani_state *as)  in ath5k_ani_lower_immunity()  argument
318 		if (as->firstep_level > 0) {  in ath5k_ani_lower_immunity()
319 			ath5k_ani_set_firstep_level(ah, as->firstep_level - 1);  in ath5k_ani_lower_immunity()
331 			if (!as->ofdm_weak_sig) {  in ath5k_ani_lower_immunity()
336 			if (as->firstep_level > 0) {  in ath5k_ani_lower_immunity()
338 							as->firstep_level - 1);  in ath5k_ani_lower_immunity()
343 			if (as->firstep_level > 0) {  in ath5k_ani_lower_immunity()
345 							as->firstep_level - 1);  in ath5k_ani_lower_immunity()
352 	if (as->spur_level > 0) {  in ath5k_ani_lower_immunity()
353 		ath5k_ani_set_spur_immunity_level(ah, as->spur_level - 1);  in ath5k_ani_lower_immunity()
358 	if (as->noise_imm_level > 0) {  in ath5k_ani_lower_immunity()
359 		ath5k_ani_set_noise_immunity_level(ah, as->noise_imm_level - 1);  in ath5k_ani_lower_immunity()
367  * @as: The &struct ath5k_ani_state
374 ath5k_hw_ani_get_listen_time(struct ath5k_hw *ah, struct ath5k_ani_state *as)  in ath5k_hw_ani_get_listen_time()  argument
382 	memcpy(&as->last_cc, &common->cc_ani, sizeof(as->last_cc));  in ath5k_hw_ani_get_listen_time()
395  * @as: The &struct ath5k_ani_state
397  * Clear the PHY error counters as soon as possible, since this might be called
407 				    struct ath5k_ani_state *as)  in ath5k_ani_save_and_clear_phy_errors()  argument
433 		as->ofdm_errors += ofdm_err;  in ath5k_ani_save_and_clear_phy_errors()
434 		as->sum_ofdm_errors += ofdm_err;  in ath5k_ani_save_and_clear_phy_errors()
437 		as->cck_errors += cck_err;  in ath5k_ani_save_and_clear_phy_errors()
438 		as->sum_cck_errors += cck_err;  in ath5k_ani_save_and_clear_phy_errors()
445  * @as: The &struct ath5k_ani_state
450 ath5k_ani_period_restart(struct ath5k_ani_state *as)  in ath5k_ani_period_restart()  argument
453 	as->last_ofdm_errors = as->ofdm_errors;  in ath5k_ani_period_restart()
454 	as->last_cck_errors = as->cck_errors;  in ath5k_ani_period_restart()
455 	as->last_listen = as->listen_time;  in ath5k_ani_period_restart()
457 	as->ofdm_errors = 0;  in ath5k_ani_period_restart()
458 	as->cck_errors = 0;  in ath5k_ani_period_restart()
459 	as->listen_time = 0;  in ath5k_ani_period_restart()
477 	struct ath5k_ani_state *as = &ah->ani_state;  in ath5k_ani_calibration()  local
483 	listen = ath5k_hw_ani_get_listen_time(ah, as);  in ath5k_ani_calibration()
484 	as->listen_time += listen;  in ath5k_ani_calibration()
486 	if (as->ani_mode != ATH5K_ANI_MODE_AUTO)  in ath5k_ani_calibration()
489 	ath5k_ani_save_and_clear_phy_errors(ah, as);  in ath5k_ani_calibration()
491 	ofdm_high = as->listen_time * ATH5K_ANI_OFDM_TRIG_HIGH / 1000;  in ath5k_ani_calibration()
492 	cck_high = as->listen_time * ATH5K_ANI_CCK_TRIG_HIGH / 1000;  in ath5k_ani_calibration()
493 	ofdm_low = as->listen_time * ATH5K_ANI_OFDM_TRIG_LOW / 1000;  in ath5k_ani_calibration()
494 	cck_low = as->listen_time * ATH5K_ANI_CCK_TRIG_LOW / 1000;  in ath5k_ani_calibration()
497 		"listen %d (now %d)", as->listen_time, listen);  in ath5k_ani_calibration()
500 		as->ofdm_errors, ofdm_high, as->cck_errors, cck_high);  in ath5k_ani_calibration()
502 	if (as->ofdm_errors > ofdm_high || as->cck_errors > cck_high) {  in ath5k_ani_calibration()
504 		bool ofdm_flag = as->ofdm_errors > ofdm_high;  in ath5k_ani_calibration()
505 		ath5k_ani_raise_immunity(ah, as, ofdm_flag);  in ath5k_ani_calibration()
506 		ath5k_ani_period_restart(as);  in ath5k_ani_calibration()
508 	} else if (as->listen_time > 5 * ATH5K_ANI_LISTEN_PERIOD) {  in ath5k_ani_calibration()
513 			as->ofdm_errors, ofdm_low, as->cck_errors, cck_low);  in ath5k_ani_calibration()
515 		if (as->ofdm_errors <= ofdm_low && as->cck_errors <= cck_low)  in ath5k_ani_calibration()
516 			ath5k_ani_lower_immunity(ah, as);  in ath5k_ani_calibration()
518 		ath5k_ani_period_restart(as);  in ath5k_ani_calibration()
541 	struct ath5k_ani_state *as = &ah->ani_state;  in ath5k_ani_mib_intr()  local
558 	if (ath5k_ani_save_and_clear_phy_errors(ah, as) == 0)  in ath5k_ani_mib_intr()
561 	if (as->ofdm_errors > ATH5K_ANI_OFDM_TRIG_HIGH ||  in ath5k_ani_mib_intr()
562 	    as->cck_errors > ATH5K_ANI_CCK_TRIG_HIGH)  in ath5k_ani_mib_intr()
579 	struct ath5k_ani_state *as = &ah->ani_state;  in ath5k_ani_phy_error_report()  local
582 		as->ofdm_errors++;  in ath5k_ani_phy_error_report()
583 		if (as->ofdm_errors > ATH5K_ANI_OFDM_TRIG_HIGH)  in ath5k_ani_phy_error_report()
586 		as->cck_errors++;  in ath5k_ani_phy_error_report()
587 		if (as->cck_errors > ATH5K_ANI_CCK_TRIG_HIGH)  in ath5k_ani_phy_error_report()