36 static int check_effect_access(struct ff_device *ff, int effect_id,  in check_effect_access()  argument
39 	if (effect_id < 0 || effect_id >= ff->max_effects ||  in check_effect_access()
40 	    !ff->effect_owners[effect_id])  in check_effect_access()
43 	if (file && ff->effect_owners[effect_id] != file)  in check_effect_access()
63 static int compat_effect(struct ff_device *ff, struct ff_effect *effect)  in compat_effect()  argument
69 		if (!test_bit(FF_PERIODIC, ff->ffbit))  in compat_effect()
107 	struct ff_device *ff = dev->ff;  in input_ff_upload()  local
129 	if (!test_bit(effect->type, ff->ffbit)) {  in input_ff_upload()
130 		ret = compat_effect(ff, effect);  in input_ff_upload()
135 	mutex_lock(&ff->mutex);  in input_ff_upload()
138 		for (id = 0; id < ff->max_effects; id++)  in input_ff_upload()
139 			if (!ff->effect_owners[id])  in input_ff_upload()
142 		if (id >= ff->max_effects) {  in input_ff_upload()
153 		ret = check_effect_access(ff, id, file);  in input_ff_upload()
157 		old = &ff->effects[id];  in input_ff_upload()
165 	ret = ff->upload(dev, effect, old);  in input_ff_upload()
170 	ff->effects[id] = *effect;  in input_ff_upload()
171 	ff->effect_owners[id] = file;  in input_ff_upload()
175 	mutex_unlock(&ff->mutex);  in input_ff_upload()
187 	struct ff_device *ff = dev->ff;  in erase_effect()  local
190 	error = check_effect_access(ff, effect_id, file);  in erase_effect()
195 	ff->playback(dev, effect_id, 0);  in erase_effect()
196 	ff->effect_owners[effect_id] = NULL;  in erase_effect()
199 	if (ff->erase) {  in erase_effect()
200 		error = ff->erase(dev, effect_id);  in erase_effect()
203 			ff->effect_owners[effect_id] = file;  in erase_effect()
225 	struct ff_device *ff = dev->ff;  in input_ff_erase()  local
231 	mutex_lock(&ff->mutex);  in input_ff_erase()
233 	mutex_unlock(&ff->mutex);  in input_ff_erase()
250 	struct ff_device *ff = dev->ff;  in input_ff_flush()  local
255 	mutex_lock(&ff->mutex);  in input_ff_flush()
257 	for (i = 0; i < ff->max_effects; i++)  in input_ff_flush()
260 	mutex_unlock(&ff->mutex);  in input_ff_flush()
276 	struct ff_device *ff = dev->ff;  in input_ff_event()  local
286 		ff->set_gain(dev, value);  in input_ff_event()
293 		ff->set_autocenter(dev, value);  in input_ff_event()
297 		if (check_effect_access(ff, code, NULL) == 0)  in input_ff_event()
298 			ff->playback(dev, code, value);  in input_ff_event()
314  * Once ff device is created you need to setup its upload, erase,
319 	struct ff_device *ff;  in input_ff_create()  local
338 	ff = kzalloc(ff_dev_size, GFP_KERNEL);  in input_ff_create()
339 	if (!ff)  in input_ff_create()
342 	ff->effects = kcalloc(max_effects, sizeof(struct ff_effect),  in input_ff_create()
344 	if (!ff->effects) {  in input_ff_create()
345 		kfree(ff);  in input_ff_create()
349 	ff->max_effects = max_effects;  in input_ff_create()
350 	mutex_init(&ff->mutex);  in input_ff_create()
352 	dev->ff = ff;  in input_ff_create()
357 	/* Copy "true" bits into ff device bitmap */  in input_ff_create()
359 		__set_bit(i, ff->ffbit);  in input_ff_create()
362 	if (test_bit(FF_PERIODIC, ff->ffbit))  in input_ff_create()
379 	struct ff_device *ff = dev->ff;  in input_ff_destroy()  local
382 	if (ff) {  in input_ff_destroy()
383 		if (ff->destroy)  in input_ff_destroy()
384 			ff->destroy(ff);  in input_ff_destroy()
385 		kfree(ff->private);  in input_ff_destroy()
386 		kfree(ff->effects);  in input_ff_destroy()
387 		kfree(ff);  in input_ff_destroy()
388 		dev->ff = NULL;  in input_ff_destroy()