136 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in __dvb_frontend_free()  local
138 	if (fepriv)  in __dvb_frontend_free()
139 		dvb_device_put(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()
304 		while (!dvb_frontend_test_event(fepriv, events)) {  in dvb_frontend_get_event()
326 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_clear_events()  local
327 	struct dvb_fe_events *events = &fepriv->events;  in dvb_frontend_clear_events()
353 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_reinitialise()  local
355 	fepriv->reinitialise = 1;  in dvb_frontend_reinitialise()
360 static void dvb_frontend_swzigzag_update_delay(struct dvb_frontend_private *fepriv, int locked)  in dvb_frontend_swzigzag_update_delay()  argument
363 	struct dvb_frontend *fe = fepriv->dvbdev->priv;  in dvb_frontend_swzigzag_update_delay()
368 		(fepriv->quality) = (fepriv->quality * 220 + 36 * 256) / 256;  in dvb_frontend_swzigzag_update_delay()
370 		(fepriv->quality) = (fepriv->quality * 220 + 0) / 256;  in dvb_frontend_swzigzag_update_delay()
372 	q2 = fepriv->quality - 128;  in dvb_frontend_swzigzag_update_delay()
375 	fepriv->delay = fepriv->min_delay + q2 * HZ / (128 * 128);  in dvb_frontend_swzigzag_update_delay()
393 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_swzigzag_autotune()  local
405 		fepriv->lnb_drift = fepriv->auto_step * fepriv->step_size;  in dvb_frontend_swzigzag_autotune()
408 		if (fepriv->lnb_drift > fepriv->max_drift) {  in dvb_frontend_swzigzag_autotune()
409 			fepriv->auto_step = 0;  in dvb_frontend_swzigzag_autotune()
410 			fepriv->auto_sub_step = 0;  in dvb_frontend_swzigzag_autotune()
411 			fepriv->lnb_drift = 0;  in dvb_frontend_swzigzag_autotune()
415 		switch (fepriv->auto_sub_step) {  in dvb_frontend_swzigzag_autotune()
424 			fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF;  in dvb_frontend_swzigzag_autotune()
429 			if (fepriv->lnb_drift == 0) break;  in dvb_frontend_swzigzag_autotune()
431 			fepriv->lnb_drift = -fepriv->lnb_drift;  in dvb_frontend_swzigzag_autotune()
436 			if (fepriv->lnb_drift == 0) break;  in dvb_frontend_swzigzag_autotune()
439 			fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF;  in dvb_frontend_swzigzag_autotune()
440 			fepriv->lnb_drift = -fepriv->lnb_drift;  in dvb_frontend_swzigzag_autotune()
445 			fepriv->auto_step++;  in dvb_frontend_swzigzag_autotune()
446 			fepriv->auto_sub_step = -1; /* it'll be incremented to 0 in a moment */  in dvb_frontend_swzigzag_autotune()
450 		if (!ready) fepriv->auto_sub_step++;  in dvb_frontend_swzigzag_autotune()
455 	if ((fepriv->auto_step == fepriv->started_auto_step) &&  in dvb_frontend_swzigzag_autotune()
456 	    (fepriv->auto_sub_step == 0) && check_wrapped) {  in dvb_frontend_swzigzag_autotune()
462 		__func__, fepriv->lnb_drift, fepriv->inversion,  in dvb_frontend_swzigzag_autotune()
463 		fepriv->auto_step, fepriv->auto_sub_step,  in dvb_frontend_swzigzag_autotune()
464 		fepriv->started_auto_step);  in dvb_frontend_swzigzag_autotune()
467 	c->frequency += fepriv->lnb_drift;  in dvb_frontend_swzigzag_autotune()
469 		c->inversion = fepriv->inversion;  in dvb_frontend_swzigzag_autotune()
475 		fepriv->state = FESTATE_ERROR;  in dvb_frontend_swzigzag_autotune()
482 	fepriv->auto_sub_step++;  in dvb_frontend_swzigzag_autotune()
490 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_swzigzag()  local
493 	if (fepriv->max_drift)  in dvb_frontend_swzigzag()
498 	if (fepriv->state & FESTATE_IDLE) {  in dvb_frontend_swzigzag()
499 		fepriv->delay = 3 * HZ;  in dvb_frontend_swzigzag()
500 		fepriv->quality = 0;  in dvb_frontend_swzigzag()
505 	if (fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT) {  in dvb_frontend_swzigzag()
506 		if (fepriv->state & FESTATE_RETUNE) {  in dvb_frontend_swzigzag()
512 				fepriv->state = FESTATE_ERROR;  in dvb_frontend_swzigzag()
514 				fepriv->state = FESTATE_TUNED;  in dvb_frontend_swzigzag()
516 		fepriv->delay = 3 * HZ;  in dvb_frontend_swzigzag()
517 		fepriv->quality = 0;  in dvb_frontend_swzigzag()
522 	if (fepriv->state & FESTATE_RETUNE) {  in dvb_frontend_swzigzag()
527 		if (s != fepriv->status) {  in dvb_frontend_swzigzag()
529 			fepriv->status = s;  in dvb_frontend_swzigzag()
534 	if ((fepriv->state & FESTATE_WAITFORLOCK) && (s & FE_HAS_LOCK)) {  in dvb_frontend_swzigzag()
535 		dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK);  in dvb_frontend_swzigzag()
536 		fepriv->state = FESTATE_TUNED;  in dvb_frontend_swzigzag()
541 			c->inversion = fepriv->inversion;  in dvb_frontend_swzigzag()
547 	if (fepriv->state & FESTATE_TUNED) {  in dvb_frontend_swzigzag()
548 		dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK);  in dvb_frontend_swzigzag()
554 			fepriv->state = FESTATE_ZIGZAG_FAST;  in dvb_frontend_swzigzag()
555 			fepriv->started_auto_step = fepriv->auto_step;  in dvb_frontend_swzigzag()
556 			fepriv->check_wrapped = 0;  in dvb_frontend_swzigzag()
562 	if ((fepriv->state & FESTATE_LOSTLOCK) &&  in dvb_frontend_swzigzag()
563 	    (fe->ops.info.caps & FE_CAN_RECOVER) && (fepriv->max_drift == 0)) {  in dvb_frontend_swzigzag()
564 		dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK);  in dvb_frontend_swzigzag()
571 	if (fepriv->state & FESTATE_DISEQC) {  in dvb_frontend_swzigzag()
572 		dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK);  in dvb_frontend_swzigzag()
579 	if (fepriv->state & FESTATE_RETUNE) {  in dvb_frontend_swzigzag()
580 		fepriv->lnb_drift = 0;  in dvb_frontend_swzigzag()
581 		fepriv->auto_step = 0;  in dvb_frontend_swzigzag()
582 		fepriv->auto_sub_step = 0;  in dvb_frontend_swzigzag()
583 		fepriv->started_auto_step = 0;  in dvb_frontend_swzigzag()
584 		fepriv->check_wrapped = 0;  in dvb_frontend_swzigzag()
588 	if ((fepriv->state & FESTATE_SEARCHING_FAST) || (fepriv->state & FESTATE_RETUNE)) {  in dvb_frontend_swzigzag()
589 		fepriv->delay = fepriv->min_delay;  in dvb_frontend_swzigzag()
593 							fepriv->check_wrapped);  in dvb_frontend_swzigzag()
599 			fepriv->state = FESTATE_SEARCHING_SLOW;  in dvb_frontend_swzigzag()
600 			fepriv->started_auto_step = fepriv->auto_step;  in dvb_frontend_swzigzag()
603 		fepriv->check_wrapped = 1;  in dvb_frontend_swzigzag()
609 		if (fepriv->state & FESTATE_RETUNE) {  in dvb_frontend_swzigzag()
610 			fepriv->state = FESTATE_TUNING_FAST;  in dvb_frontend_swzigzag()
615 	if (fepriv->state & FESTATE_SEARCHING_SLOW) {  in dvb_frontend_swzigzag()
616 		dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK);  in dvb_frontend_swzigzag()
626 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_is_exiting()  local
631 	if (fepriv->dvbdev->writers == 1)  in dvb_frontend_is_exiting()
632 		if (time_after_eq(jiffies, fepriv->release_jiffies +  in dvb_frontend_is_exiting()
641 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_should_wakeup()  local
643 	if (fepriv->wakeup) {  in dvb_frontend_should_wakeup()
644 		fepriv->wakeup = 0;  in dvb_frontend_should_wakeup()
652 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_wakeup()  local
654 	fepriv->wakeup = 1;  in dvb_frontend_wakeup()
655 	wake_up_interruptible(&fepriv->wait_queue);  in dvb_frontend_wakeup()
662 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_thread()  local
670 	fepriv->check_wrapped = 0;  in dvb_frontend_thread()
671 	fepriv->quality = 0;  in dvb_frontend_thread()
672 	fepriv->delay = 3 * HZ;  in dvb_frontend_thread()
673 	fepriv->status = 0;  in dvb_frontend_thread()
674 	fepriv->wakeup = 0;  in dvb_frontend_thread()
675 	fepriv->reinitialise = 0;  in dvb_frontend_thread()
681 		up(&fepriv->sem);	    /* is locked when we enter the thread... */  in dvb_frontend_thread()
683 		wait_event_interruptible_timeout(fepriv->wait_queue,  in dvb_frontend_thread()
687 			fepriv->delay);  in dvb_frontend_thread()
691 			if (!down_interruptible(&fepriv->sem))  in dvb_frontend_thread()
700 		if (down_interruptible(&fepriv->sem))  in dvb_frontend_thread()
703 		if (fepriv->reinitialise) {  in dvb_frontend_thread()
705 			if (fe->ops.set_tone && fepriv->tone != -1)  in dvb_frontend_thread()
706 				fe->ops.set_tone(fe, fepriv->tone);  in dvb_frontend_thread()
707 			if (fe->ops.set_voltage && fepriv->voltage != -1)  in dvb_frontend_thread()
708 				fe->ops.set_voltage(fe, fepriv->voltage);  in dvb_frontend_thread()
709 			fepriv->reinitialise = 0;  in dvb_frontend_thread()
719 				if (fepriv->state & FESTATE_RETUNE) {  in dvb_frontend_thread()
722 					fepriv->state = FESTATE_TUNED;  in dvb_frontend_thread()
728 					fe->ops.tune(fe, re_tune, fepriv->tune_mode_flags, &fepriv->delay, &s);  in dvb_frontend_thread()
730 				if (s != fepriv->status && !(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT)) {  in dvb_frontend_thread()
733 					fepriv->status = s;  in dvb_frontend_thread()
741 …dev_dbg(fe->dvb->device, "%s: Frontend ALGO = DVBFE_ALGO_CUSTOM, state=%d\n", __func__, fepriv->st…  in dvb_frontend_thread()
742 				if (fepriv->state & FESTATE_RETUNE) {  in dvb_frontend_thread()
744 					fepriv->state = FESTATE_TUNED;  in dvb_frontend_thread()
750 				if (fepriv->algo_status & DVBFE_ALGO_SEARCH_AGAIN) {  in dvb_frontend_thread()
752 						fepriv->algo_status = fe->ops.search(fe);  in dvb_frontend_thread()
757 						fepriv->algo_status &= ~DVBFE_ALGO_SEARCH_AGAIN;  in dvb_frontend_thread()
761 				if (fepriv->algo_status != DVBFE_ALGO_SEARCH_SUCCESS) {  in dvb_frontend_thread()
762 					fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN;  in dvb_frontend_thread()
763 					fepriv->delay = HZ / 2;  in dvb_frontend_thread()
765 				dtv_property_legacy_params_sync(fe, c, &fepriv->parameters_out);  in dvb_frontend_thread()
767 				if (s != fepriv->status) {  in dvb_frontend_thread()
769 					fepriv->status = s;  in dvb_frontend_thread()
771 						fepriv->delay = HZ / 10;  in dvb_frontend_thread()
772 						fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN;  in dvb_frontend_thread()
774 						fepriv->delay = 60 * HZ;  in dvb_frontend_thread()
801 	fepriv->thread = NULL;  in dvb_frontend_thread()
809 		up(&fepriv->sem);  in dvb_frontend_thread()
816 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_stop()  local
824 	if (!fepriv->thread)  in dvb_frontend_stop()
827 	kthread_stop(fepriv->thread);  in dvb_frontend_stop()
829 	sema_init(&fepriv->sem, 1);  in dvb_frontend_stop()
830 	fepriv->state = FESTATE_IDLE;  in dvb_frontend_stop()
833 	if (fepriv->thread)  in dvb_frontend_stop()
836 			 fepriv->thread);  in dvb_frontend_stop()
864 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_start()  local
869 	if (fepriv->thread) {  in dvb_frontend_start()
878 	if (down_interruptible(&fepriv->sem))  in dvb_frontend_start()
881 	fepriv->state = FESTATE_IDLE;  in dvb_frontend_start()
883 	fepriv->thread = NULL;  in dvb_frontend_start()
893 		up(&fepriv->sem);  in dvb_frontend_start()
896 	fepriv->thread = fe_thread;  in dvb_frontend_start()
1828 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in prepare_tuning_algo_parameters()  local
1833 		fepriv->min_delay = (fetunesettings.min_delay_ms * HZ) / 1000;  in prepare_tuning_algo_parameters()
1834 		fepriv->max_drift = fetunesettings.max_drift;  in prepare_tuning_algo_parameters()
1835 		fepriv->step_size = fetunesettings.step_size;  in prepare_tuning_algo_parameters()
1846 			fepriv->min_delay = HZ / 20;  in prepare_tuning_algo_parameters()
1847 			fepriv->step_size = c->symbol_rate / 16000;  in prepare_tuning_algo_parameters()
1848 			fepriv->max_drift = c->symbol_rate / 2000;  in prepare_tuning_algo_parameters()
1854 			fepriv->min_delay = HZ / 20;  in prepare_tuning_algo_parameters()
1855 			fepriv->step_size = dvb_frontend_get_stepsize(fe) * 2;  in prepare_tuning_algo_parameters()
1856 			fepriv->max_drift = fepriv->step_size + 1;  in prepare_tuning_algo_parameters()
1863 			fepriv->min_delay = HZ / 20;  in prepare_tuning_algo_parameters()
1864 			fepriv->step_size = 0; /* no zigzag */  in prepare_tuning_algo_parameters()
1865 			fepriv->max_drift = 0;  in prepare_tuning_algo_parameters()
1870 		fepriv->min_delay = (dvb_override_tune_delay * HZ) / 1000;  in prepare_tuning_algo_parameters()
2072 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_do_ioctl()  local
2076 	if (down_interruptible(&fepriv->sem))  in dvb_frontend_do_ioctl()
2080 		up(&fepriv->sem);  in dvb_frontend_do_ioctl()
2101 		up(&fepriv->sem);  in dvb_frontend_do_ioctl()
2107 	up(&fepriv->sem);  in dvb_frontend_do_ioctl()
2152 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_handle_compat_ioctl()  local
2214 		if (fepriv->state != FESTATE_IDLE) {  in dvb_frontend_handle_compat_ioctl()
2246 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_compat_ioctl()  local
2250 		if (down_interruptible(&fepriv->sem))  in dvb_frontend_compat_ioctl()
2255 		up(&fepriv->sem);  in dvb_frontend_compat_ioctl()
2265 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dtv_set_frontend()  local
2277 	dtv_property_legacy_params_sync(fe, c, &fepriv->parameters_out);  in dtv_set_frontend()
2349 	fepriv->state = FESTATE_RETUNE;  in dtv_set_frontend()
2352 	fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN;  in dtv_set_frontend()
2357 	fepriv->status = 0;  in dtv_set_frontend()
2365 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_get_property()  local
2395 	if (fepriv->state != FESTATE_IDLE) {  in dvb_get_property()
2440 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_handle_ioctl()  local
2533 		if (!(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT))  in dvb_frontend_handle_ioctl()
2544 		if (fepriv->state == FESTATE_RETUNE ||  in dvb_frontend_handle_ioctl()
2545 		    fepriv->state == FESTATE_ERROR) {  in dvb_frontend_handle_ioctl()
2559 			fepriv->state = FESTATE_DISEQC;  in dvb_frontend_handle_ioctl()
2560 			fepriv->status = 0;  in dvb_frontend_handle_ioctl()
2573 			fepriv->state = FESTATE_DISEQC;  in dvb_frontend_handle_ioctl()
2574 			fepriv->status = 0;  in dvb_frontend_handle_ioctl()
2581 			fepriv->state = FESTATE_DISEQC;  in dvb_frontend_handle_ioctl()
2582 			fepriv->status = 0;  in dvb_frontend_handle_ioctl()
2588 			fepriv->tone = (long)parg;  in dvb_frontend_handle_ioctl()
2589 			err = fe->ops.set_tone(fe, fepriv->tone);  in dvb_frontend_handle_ioctl()
2590 			fepriv->state = FESTATE_DISEQC;  in dvb_frontend_handle_ioctl()
2591 			fepriv->status = 0;  in dvb_frontend_handle_ioctl()
2597 			fepriv->voltage = (long)parg;  in dvb_frontend_handle_ioctl()
2598 			err = fe->ops.set_voltage(fe, fepriv->voltage);  in dvb_frontend_handle_ioctl()
2599 			fepriv->state = FESTATE_DISEQC;  in dvb_frontend_handle_ioctl()
2600 			fepriv->status = 0;  in dvb_frontend_handle_ioctl()
2615 		fepriv->tune_mode_flags = (unsigned long)parg;  in dvb_frontend_handle_ioctl()
2624 			fepriv->state = FESTATE_DISEQC;  in dvb_frontend_handle_ioctl()
2625 			fepriv->status = 0;  in dvb_frontend_handle_ioctl()
2681 			fepriv->state = FESTATE_DISEQC;  in dvb_frontend_handle_ioctl()
2682 			fepriv->status = 0;  in dvb_frontend_handle_ioctl()
2690 			if (fepriv->thread)  in dvb_frontend_handle_ioctl()
2699 			if (fepriv->thread)  in dvb_frontend_handle_ioctl()
2708 			if (fepriv->thread)  in dvb_frontend_handle_ioctl()
2717 			if (fepriv->thread)  in dvb_frontend_handle_ioctl()
2756 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_poll()  local
2760 	poll_wait(file, &fepriv->events.wait_queue, wait);  in dvb_frontend_poll()
2762 	if (fepriv->events.eventw != fepriv->events.eventr)  in dvb_frontend_poll()
2772 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_open()  local
2839 		fepriv->reinitialise = 1;  in dvb_frontend_open()
2847 		fepriv->tune_mode_flags &= ~FE_TUNE_MODE_ONESHOT;  in dvb_frontend_open()
2848 		fepriv->tone = -1;  in dvb_frontend_open()
2849 		fepriv->voltage = -1;  in dvb_frontend_open()
2858 							   &fepriv->pipe);  in dvb_frontend_open()
2874 		fepriv->events.eventr = fepriv->events.eventw = 0;  in dvb_frontend_open()
2909 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_release()  local
2915 		fepriv->release_jiffies = jiffies;  in dvb_frontend_release()
2922 		wake_up(&fepriv->wait_queue);  in dvb_frontend_release()
2979 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_frontend_resume()  local
2996 	if (fe->ops.set_tone && fepriv->tone != -1)  in dvb_frontend_resume()
2997 		fe->ops.set_tone(fe, fepriv->tone);  in dvb_frontend_resume()
2998 	if (fe->ops.set_voltage && fepriv->voltage != -1)  in dvb_frontend_resume()
2999 		fe->ops.set_voltage(fe, fepriv->voltage);  in dvb_frontend_resume()
3002 	fepriv->state = FESTATE_RETUNE;  in dvb_frontend_resume()
3012 	struct dvb_frontend_private *fepriv;  in dvb_register_frontend()  local
3034 	fepriv = fe->frontend_priv;  in dvb_register_frontend()
3045 	sema_init(&fepriv->sem, 1);  in dvb_register_frontend()
3046 	init_waitqueue_head(&fepriv->wait_queue);  in dvb_register_frontend()
3047 	init_waitqueue_head(&fepriv->events.wait_queue);  in dvb_register_frontend()
3048 	mutex_init(&fepriv->events.mtx);  in dvb_register_frontend()
3050 	fepriv->inversion = INVERSION_OFF;  in dvb_register_frontend()
3056 	ret = dvb_register_device(fe->dvb, &fepriv->dvbdev, &dvbdev_template,  in dvb_register_frontend()
3079 	struct dvb_frontend_private *fepriv = fe->frontend_priv;  in dvb_unregister_frontend()  local
3085 	dvb_remove_device(fepriv->dvbdev);  in dvb_unregister_frontend()