20  * Check that the effect_id is a valid effect and whether the user
48  * Convert an effect into compatible one
50 static int compat_effect(struct ff_device *ff, struct ff_effect *effect)  in compat_effect()  argument
54 	switch (effect->type) {  in compat_effect()
63 		magnitude = effect->u.rumble.strong_magnitude / 3 +  in compat_effect()
64 			    effect->u.rumble.weak_magnitude / 6;  in compat_effect()
66 		effect->type = FF_PERIODIC;  in compat_effect()
67 		effect->u.periodic.waveform = FF_SINE;  in compat_effect()
68 		effect->u.periodic.period = 50;  in compat_effect()
69 		effect->u.periodic.magnitude = magnitude;  in compat_effect()
70 		effect->u.periodic.offset = 0;  in compat_effect()
71 		effect->u.periodic.phase = 0;  in compat_effect()
72 		effect->u.periodic.envelope.attack_length = 0;  in compat_effect()
73 		effect->u.periodic.envelope.attack_level = 0;  in compat_effect()
74 		effect->u.periodic.envelope.fade_length = 0;  in compat_effect()
75 		effect->u.periodic.envelope.fade_level = 0;  in compat_effect()
86  * input_ff_upload() - upload effect into force-feedback device
88  * @effect: effect to be uploaded
89  * @file: owner of the effect
91 int input_ff_upload(struct input_dev *dev, struct ff_effect *effect,  in input_ff_upload()  argument
102 	if (effect->type < FF_EFFECT_MIN || effect->type > FF_EFFECT_MAX ||  in input_ff_upload()
103 	    !test_bit(effect->type, dev->ffbit)) {  in input_ff_upload()
104 		dev_dbg(&dev->dev, "invalid or not supported effect type in upload\n");  in input_ff_upload()
108 	if (effect->type == FF_PERIODIC &&  in input_ff_upload()
109 	    (effect->u.periodic.waveform < FF_WAVEFORM_MIN ||  in input_ff_upload()
110 	     effect->u.periodic.waveform > FF_WAVEFORM_MAX ||  in input_ff_upload()
111 	     !test_bit(effect->u.periodic.waveform, dev->ffbit))) {  in input_ff_upload()
116 	if (!test_bit(effect->type, ff->ffbit)) {  in input_ff_upload()
117 		ret = compat_effect(ff, effect);  in input_ff_upload()
124 	if (effect->id == -1) {  in input_ff_upload()
134 		effect->id = id;  in input_ff_upload()
138 		id = effect->id;  in input_ff_upload()
146 		if (!check_effects_compatible(effect, old)) {  in input_ff_upload()
152 	ret = ff->upload(dev, effect, old);  in input_ff_upload()
157 	ff->effects[id] = *effect;  in input_ff_upload()
168  * Erases the effect if the requester is also the effect owner. The mutex
201  * input_ff_erase - erase a force-feedback effect from device
202  * @dev: input device to erase effect from
203  * @effect_id: id of the effect to be erased
206  * This function erases a force-feedback effect from specified device.
207  * The effect will only be erased if it was uploaded through the same
228  * @dev: input device to erase effect from
255  * @dev: input device to send the effect to