136 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in __dvb_frontend_free()  local
138 	if (fepriv)  in __dvb_frontend_free()
139 		dvb_free_device(fepriv->dvbdev);  in __dvb_frontend_free()
143 	kfree(fepriv);  in __dvb_frontend_free()
240 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_add_event()  local
242 	struct dvb_fe_events *events = &fepriv->events;  in dvb_frontend_add_event()
249 		dtv_get_frontend(fe, c, &fepriv->parameters_out);  in dvb_frontend_add_event()
261 	e->parameters = fepriv->parameters_out;  in dvb_frontend_add_event()
270 static int dvb_frontend_test_event(struct dvb_frontend_private *fepriv,  in dvb_frontend_test_event()  argument
275 	up(&fepriv->sem);  in dvb_frontend_test_event()
277 	down(&fepriv->sem);  in dvb_frontend_test_event()
285 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_get_event()  local
286 	struct dvb_fe_events *events = &fepriv->events;  in dvb_frontend_get_event()
302 					       dvb_frontend_test_event(fepriv, events));  in dvb_frontend_get_event()
318 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_clear_events()  local
319 	struct dvb_fe_events *events = &fepriv->events;  in dvb_frontend_clear_events()
345 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_reinitialise()  local
347 	fepriv->reinitialise = 1;  in dvb_frontend_reinitialise()
352 static void dvb_frontend_swzigzag_update_delay(struct dvb_frontend_private *fepriv, int locked)  in dvb_frontend_swzigzag_update_delay()  argument
355 	struct dvb_frontend *fe = fepriv->dvbdev->priv;  in dvb_frontend_swzigzag_update_delay()
360 		(fepriv->quality) = (fepriv->quality * 220 + 36 * 256) / 256;  in dvb_frontend_swzigzag_update_delay()
362 		(fepriv->quality) = (fepriv->quality * 220 + 0) / 256;  in dvb_frontend_swzigzag_update_delay()
364 	q2 = fepriv->quality - 128;  in dvb_frontend_swzigzag_update_delay()
367 	fepriv->delay = fepriv->min_delay + q2 * HZ / (128 * 128);  in dvb_frontend_swzigzag_update_delay()
385 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_swzigzag_autotune()  local
397 		fepriv->lnb_drift = fepriv->auto_step * fepriv->step_size;  in dvb_frontend_swzigzag_autotune()
400 		if (fepriv->lnb_drift > fepriv->max_drift) {  in dvb_frontend_swzigzag_autotune()
401 			fepriv->auto_step = 0;  in dvb_frontend_swzigzag_autotune()
402 			fepriv->auto_sub_step = 0;  in dvb_frontend_swzigzag_autotune()
403 			fepriv->lnb_drift = 0;  in dvb_frontend_swzigzag_autotune()
407 		switch (fepriv->auto_sub_step) {  in dvb_frontend_swzigzag_autotune()
416 			fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF;  in dvb_frontend_swzigzag_autotune()
421 			if (fepriv->lnb_drift == 0) break;  in dvb_frontend_swzigzag_autotune()
423 			fepriv->lnb_drift = -fepriv->lnb_drift;  in dvb_frontend_swzigzag_autotune()
428 			if (fepriv->lnb_drift == 0) break;  in dvb_frontend_swzigzag_autotune()
431 			fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF;  in dvb_frontend_swzigzag_autotune()
432 			fepriv->lnb_drift = -fepriv->lnb_drift;  in dvb_frontend_swzigzag_autotune()
437 			fepriv->auto_step++;  in dvb_frontend_swzigzag_autotune()
438 			fepriv->auto_sub_step = -1; /* it'll be incremented to 0 in a moment */  in dvb_frontend_swzigzag_autotune()
442 		if (!ready) fepriv->auto_sub_step++;  in dvb_frontend_swzigzag_autotune()
447 	if ((fepriv->auto_step == fepriv->started_auto_step) &&  in dvb_frontend_swzigzag_autotune()
448 	    (fepriv->auto_sub_step == 0) && check_wrapped) {  in dvb_frontend_swzigzag_autotune()
454 		__func__, fepriv->lnb_drift, fepriv->inversion,  in dvb_frontend_swzigzag_autotune()
455 		fepriv->auto_step, fepriv->auto_sub_step,  in dvb_frontend_swzigzag_autotune()
456 		fepriv->started_auto_step);  in dvb_frontend_swzigzag_autotune()
459 	c->frequency += fepriv->lnb_drift;  in dvb_frontend_swzigzag_autotune()
461 		c->inversion = fepriv->inversion;  in dvb_frontend_swzigzag_autotune()
467 		fepriv->state = FESTATE_ERROR;  in dvb_frontend_swzigzag_autotune()
474 	fepriv->auto_sub_step++;  in dvb_frontend_swzigzag_autotune()
482 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_swzigzag()  local
485 	if (fepriv->max_drift)  in dvb_frontend_swzigzag()
490 	if (fepriv->state & FESTATE_IDLE) {  in dvb_frontend_swzigzag()
491 		fepriv->delay = 3 * HZ;  in dvb_frontend_swzigzag()
492 		fepriv->quality = 0;  in dvb_frontend_swzigzag()
497 	if (fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT) {  in dvb_frontend_swzigzag()
498 		if (fepriv->state & FESTATE_RETUNE) {  in dvb_frontend_swzigzag()
504 				fepriv->state = FESTATE_ERROR;  in dvb_frontend_swzigzag()
506 				fepriv->state = FESTATE_TUNED;  in dvb_frontend_swzigzag()
508 		fepriv->delay = 3 * HZ;  in dvb_frontend_swzigzag()
509 		fepriv->quality = 0;  in dvb_frontend_swzigzag()
514 	if (fepriv->state & FESTATE_RETUNE) {  in dvb_frontend_swzigzag()
519 		if (s != fepriv->status) {  in dvb_frontend_swzigzag()
521 			fepriv->status = s;  in dvb_frontend_swzigzag()
526 	if ((fepriv->state & FESTATE_WAITFORLOCK) && (s & FE_HAS_LOCK)) {  in dvb_frontend_swzigzag()
527 		dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK);  in dvb_frontend_swzigzag()
528 		fepriv->state = FESTATE_TUNED;  in dvb_frontend_swzigzag()
533 			c->inversion = fepriv->inversion;  in dvb_frontend_swzigzag()
539 	if (fepriv->state & FESTATE_TUNED) {  in dvb_frontend_swzigzag()
540 		dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK);  in dvb_frontend_swzigzag()
546 			fepriv->state = FESTATE_ZIGZAG_FAST;  in dvb_frontend_swzigzag()
547 			fepriv->started_auto_step = fepriv->auto_step;  in dvb_frontend_swzigzag()
548 			fepriv->check_wrapped = 0;  in dvb_frontend_swzigzag()
554 	if ((fepriv->state & FESTATE_LOSTLOCK) &&  in dvb_frontend_swzigzag()
555 	    (fe->ops.info.caps & FE_CAN_RECOVER) && (fepriv->max_drift == 0)) {  in dvb_frontend_swzigzag()
556 		dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK);  in dvb_frontend_swzigzag()
563 	if (fepriv->state & FESTATE_DISEQC) {  in dvb_frontend_swzigzag()
564 		dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK);  in dvb_frontend_swzigzag()
571 	if (fepriv->state & FESTATE_RETUNE) {  in dvb_frontend_swzigzag()
572 		fepriv->lnb_drift = 0;  in dvb_frontend_swzigzag()
573 		fepriv->auto_step = 0;  in dvb_frontend_swzigzag()
574 		fepriv->auto_sub_step = 0;  in dvb_frontend_swzigzag()
575 		fepriv->started_auto_step = 0;  in dvb_frontend_swzigzag()
576 		fepriv->check_wrapped = 0;  in dvb_frontend_swzigzag()
580 	if ((fepriv->state & FESTATE_SEARCHING_FAST) || (fepriv->state & FESTATE_RETUNE)) {  in dvb_frontend_swzigzag()
581 		fepriv->delay = fepriv->min_delay;  in dvb_frontend_swzigzag()
585 							fepriv->check_wrapped);  in dvb_frontend_swzigzag()
591 			fepriv->state = FESTATE_SEARCHING_SLOW;  in dvb_frontend_swzigzag()
592 			fepriv->started_auto_step = fepriv->auto_step;  in dvb_frontend_swzigzag()
595 		fepriv->check_wrapped = 1;  in dvb_frontend_swzigzag()
601 		if (fepriv->state & FESTATE_RETUNE) {  in dvb_frontend_swzigzag()
602 			fepriv->state = FESTATE_TUNING_FAST;  in dvb_frontend_swzigzag()
607 	if (fepriv->state & FESTATE_SEARCHING_SLOW) {  in dvb_frontend_swzigzag()
608 		dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK);  in dvb_frontend_swzigzag()
618 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_is_exiting()  local
623 	if (fepriv->dvbdev->writers == 1)  in dvb_frontend_is_exiting()
624 		if (time_after_eq(jiffies, fepriv->release_jiffies +  in dvb_frontend_is_exiting()
633 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_should_wakeup()  local
635 	if (fepriv->wakeup) {  in dvb_frontend_should_wakeup()
636 		fepriv->wakeup = 0;  in dvb_frontend_should_wakeup()
644 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_wakeup()  local
646 	fepriv->wakeup = 1;  in dvb_frontend_wakeup()
647 	wake_up_interruptible(&fepriv->wait_queue);  in dvb_frontend_wakeup()
654 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_thread()  local
662 	fepriv->check_wrapped = 0;  in dvb_frontend_thread()
663 	fepriv->quality = 0;  in dvb_frontend_thread()
664 	fepriv->delay = 3 * HZ;  in dvb_frontend_thread()
665 	fepriv->status = 0;  in dvb_frontend_thread()
666 	fepriv->wakeup = 0;  in dvb_frontend_thread()
667 	fepriv->reinitialise = 0;  in dvb_frontend_thread()
673 		up(&fepriv->sem);	    /* is locked when we enter the thread... */  in dvb_frontend_thread()
675 		wait_event_interruptible_timeout(fepriv->wait_queue,  in dvb_frontend_thread()
679 			fepriv->delay);  in dvb_frontend_thread()
683 			if (!down_interruptible(&fepriv->sem))  in dvb_frontend_thread()
692 		if (down_interruptible(&fepriv->sem))  in dvb_frontend_thread()
695 		if (fepriv->reinitialise) {  in dvb_frontend_thread()
697 			if (fe->ops.set_tone && fepriv->tone != -1)  in dvb_frontend_thread()
698 				fe->ops.set_tone(fe, fepriv->tone);  in dvb_frontend_thread()
699 			if (fe->ops.set_voltage && fepriv->voltage != -1)  in dvb_frontend_thread()
700 				fe->ops.set_voltage(fe, fepriv->voltage);  in dvb_frontend_thread()
701 			fepriv->reinitialise = 0;  in dvb_frontend_thread()
711 				if (fepriv->state & FESTATE_RETUNE) {  in dvb_frontend_thread()
714 					fepriv->state = FESTATE_TUNED;  in dvb_frontend_thread()
720 					fe->ops.tune(fe, re_tune, fepriv->tune_mode_flags, &fepriv->delay, &s);  in dvb_frontend_thread()
722 				if (s != fepriv->status && !(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT)) {  in dvb_frontend_thread()
725 					fepriv->status = s;  in dvb_frontend_thread()
733 …dev_dbg(fe->dvb->device, "%s: Frontend ALGO = DVBFE_ALGO_CUSTOM, state=%d\n", __func__, fepriv->st…  in dvb_frontend_thread()
734 				if (fepriv->state & FESTATE_RETUNE) {  in dvb_frontend_thread()
736 					fepriv->state = FESTATE_TUNED;  in dvb_frontend_thread()
742 				if (fepriv->algo_status & DVBFE_ALGO_SEARCH_AGAIN) {  in dvb_frontend_thread()
744 						fepriv->algo_status = fe->ops.search(fe);  in dvb_frontend_thread()
749 						fepriv->algo_status &= ~DVBFE_ALGO_SEARCH_AGAIN;  in dvb_frontend_thread()
753 				if (fepriv->algo_status != DVBFE_ALGO_SEARCH_SUCCESS) {  in dvb_frontend_thread()
754 					fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN;  in dvb_frontend_thread()
755 					fepriv->delay = HZ / 2;  in dvb_frontend_thread()
757 				dtv_property_legacy_params_sync(fe, c, &fepriv->parameters_out);  in dvb_frontend_thread()
759 				if (s != fepriv->status) {  in dvb_frontend_thread()
761 					fepriv->status = s;  in dvb_frontend_thread()
763 						fepriv->delay = HZ / 10;  in dvb_frontend_thread()
764 						fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN;  in dvb_frontend_thread()
766 						fepriv->delay = 60 * HZ;  in dvb_frontend_thread()
793 	fepriv->thread = NULL;  in dvb_frontend_thread()
801 		up(&fepriv->sem);  in dvb_frontend_thread()
808 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_stop()  local
816 	if (!fepriv->thread)  in dvb_frontend_stop()
819 	kthread_stop(fepriv->thread);  in dvb_frontend_stop()
821 	sema_init(&fepriv->sem, 1);  in dvb_frontend_stop()
822 	fepriv->state = FESTATE_IDLE;  in dvb_frontend_stop()
825 	if (fepriv->thread)  in dvb_frontend_stop()
828 			 fepriv->thread);  in dvb_frontend_stop()
856 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_start()  local
861 	if (fepriv->thread) {  in dvb_frontend_start()
870 	if (down_interruptible(&fepriv->sem))  in dvb_frontend_start()
873 	fepriv->state = FESTATE_IDLE;  in dvb_frontend_start()
875 	fepriv->thread = NULL;  in dvb_frontend_start()
885 		up(&fepriv->sem);  in dvb_frontend_start()
888 	fepriv->thread = fe_thread;  in dvb_frontend_start()
1813 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in prepare_tuning_algo_parameters()  local
1818 		fepriv->min_delay = (fetunesettings.min_delay_ms * HZ) / 1000;  in prepare_tuning_algo_parameters()
1819 		fepriv->max_drift = fetunesettings.max_drift;  in prepare_tuning_algo_parameters()
1820 		fepriv->step_size = fetunesettings.step_size;  in prepare_tuning_algo_parameters()
1830 			fepriv->min_delay = HZ / 20;  in prepare_tuning_algo_parameters()
1831 			fepriv->step_size = c->symbol_rate / 16000;  in prepare_tuning_algo_parameters()
1832 			fepriv->max_drift = c->symbol_rate / 2000;  in prepare_tuning_algo_parameters()
1838 			fepriv->min_delay = HZ / 20;  in prepare_tuning_algo_parameters()
1839 			fepriv->step_size = dvb_frontend_get_stepsize(fe) * 2;  in prepare_tuning_algo_parameters()
1840 			fepriv->max_drift = fepriv->step_size + 1;  in prepare_tuning_algo_parameters()
1847 			fepriv->min_delay = HZ / 20;  in prepare_tuning_algo_parameters()
1848 			fepriv->step_size = 0; /* no zigzag */  in prepare_tuning_algo_parameters()
1849 			fepriv->max_drift = 0;  in prepare_tuning_algo_parameters()
1854 		fepriv->min_delay = (dvb_override_tune_delay * HZ) / 1000;  in prepare_tuning_algo_parameters()
2056 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_do_ioctl()  local
2060 	if (down_interruptible(&fepriv->sem))  in dvb_frontend_do_ioctl()
2064 		up(&fepriv->sem);  in dvb_frontend_do_ioctl()
2085 		up(&fepriv->sem);  in dvb_frontend_do_ioctl()
2091 	up(&fepriv->sem);  in dvb_frontend_do_ioctl()
2136 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_handle_compat_ioctl()  local
2196 		if (fepriv->state != FESTATE_IDLE) {  in dvb_frontend_handle_compat_ioctl()
2228 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_compat_ioctl()  local
2232 		if (down_interruptible(&fepriv->sem))  in dvb_frontend_compat_ioctl()
2237 		up(&fepriv->sem);  in dvb_frontend_compat_ioctl()
2247 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dtv_set_frontend()  local
2259 	dtv_property_legacy_params_sync(fe, c, &fepriv->parameters_out);  in dtv_set_frontend()
2328 	fepriv->state = FESTATE_RETUNE;  in dtv_set_frontend()
2331 	fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN;  in dtv_set_frontend()
2336 	fepriv->status = 0;  in dtv_set_frontend()
2344 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_get_property()  local
2373 	if (fepriv->state != FESTATE_IDLE) {  in dvb_get_property()
2418 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_handle_ioctl()  local
2510 		if (!(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT))  in dvb_frontend_handle_ioctl()
2521 		if (fepriv->state == FESTATE_RETUNE ||  in dvb_frontend_handle_ioctl()
2522 		    fepriv->state == FESTATE_ERROR) {  in dvb_frontend_handle_ioctl()
2536 			fepriv->state = FESTATE_DISEQC;  in dvb_frontend_handle_ioctl()
2537 			fepriv->status = 0;  in dvb_frontend_handle_ioctl()
2550 			fepriv->state = FESTATE_DISEQC;  in dvb_frontend_handle_ioctl()
2551 			fepriv->status = 0;  in dvb_frontend_handle_ioctl()
2559 			fepriv->state = FESTATE_DISEQC;  in dvb_frontend_handle_ioctl()
2560 			fepriv->status = 0;  in dvb_frontend_handle_ioctl()
2568 			fepriv->tone = (enum fe_sec_tone_mode)parg;  in dvb_frontend_handle_ioctl()
2569 			fepriv->state = FESTATE_DISEQC;  in dvb_frontend_handle_ioctl()
2570 			fepriv->status = 0;  in dvb_frontend_handle_ioctl()
2578 			fepriv->voltage = (enum fe_sec_voltage)parg;  in dvb_frontend_handle_ioctl()
2579 			fepriv->state = FESTATE_DISEQC;  in dvb_frontend_handle_ioctl()
2580 			fepriv->status = 0;  in dvb_frontend_handle_ioctl()
2595 		fepriv->tune_mode_flags = (unsigned long)parg;  in dvb_frontend_handle_ioctl()
2604 			fepriv->state = FESTATE_DISEQC;  in dvb_frontend_handle_ioctl()
2605 			fepriv->status = 0;  in dvb_frontend_handle_ioctl()
2661 			fepriv->state = FESTATE_DISEQC;  in dvb_frontend_handle_ioctl()
2662 			fepriv->status = 0;  in dvb_frontend_handle_ioctl()
2670 			if (fepriv->thread)  in dvb_frontend_handle_ioctl()
2679 			if (fepriv->thread)  in dvb_frontend_handle_ioctl()
2688 			if (fepriv->thread)  in dvb_frontend_handle_ioctl()
2697 			if (fepriv->thread)  in dvb_frontend_handle_ioctl()
2736 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_poll()  local
2740 	poll_wait(file, &fepriv->events.wait_queue, wait);  in dvb_frontend_poll()
2742 	if (fepriv->events.eventw != fepriv->events.eventr)  in dvb_frontend_poll()
2752 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_open()  local
2809 		fepriv->reinitialise = 1;  in dvb_frontend_open()
2817 		fepriv->tune_mode_flags &= ~FE_TUNE_MODE_ONESHOT;  in dvb_frontend_open()
2818 		fepriv->tone = -1;  in dvb_frontend_open()
2819 		fepriv->voltage = -1;  in dvb_frontend_open()
2828 							   &fepriv->pipe);  in dvb_frontend_open()
2844 		fepriv->events.eventr = fepriv->events.eventw = 0;  in dvb_frontend_open()
2879 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_release()  local
2885 		fepriv->release_jiffies = jiffies;  in dvb_frontend_release()
2892 		wake_up(&fepriv->wait_queue);  in dvb_frontend_release()
2947 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_resume()  local
2962 	if (fe->ops.set_tone && fepriv->tone != -1)  in dvb_frontend_resume()
2963 		fe->ops.set_tone(fe, fepriv->tone);  in dvb_frontend_resume()
2964 	if (fe->ops.set_voltage && fepriv->voltage != -1)  in dvb_frontend_resume()
2965 		fe->ops.set_voltage(fe, fepriv->voltage);  in dvb_frontend_resume()
2968 	fepriv->state = FESTATE_RETUNE;  in dvb_frontend_resume()
2978 	struct dvb_frontend_private *fepriv;  in dvb_register_frontend()  local
2999 	fepriv = fe->frontend_priv;  in dvb_register_frontend()
3010 	sema_init(&fepriv->sem, 1);  in dvb_register_frontend()
3011 	init_waitqueue_head(&fepriv->wait_queue);  in dvb_register_frontend()
3012 	init_waitqueue_head(&fepriv->events.wait_queue);  in dvb_register_frontend()
3013 	mutex_init(&fepriv->events.mtx);  in dvb_register_frontend()
3015 	fepriv->inversion = INVERSION_OFF;  in dvb_register_frontend()
3021 	dvb_register_device(fe->dvb, &fepriv->dvbdev, &dvbdev_template,  in dvb_register_frontend()
3039 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_unregister_frontend()  local
3045 	dvb_remove_device(fepriv->dvbdev);  in dvb_unregister_frontend()