23 static int check_effect_access(struct ff_device *ff, int effect_id,  in check_effect_access()  argument
26 	if (effect_id < 0 || effect_id >= ff->max_effects ||  in check_effect_access()
27 	    !ff->effect_owners[effect_id])  in check_effect_access()
30 	if (file && ff->effect_owners[effect_id] != file)  in check_effect_access()
50 static int compat_effect(struct ff_device *ff, struct ff_effect *effect)  in compat_effect()  argument
56 		if (!test_bit(FF_PERIODIC, ff->ffbit))  in compat_effect()
94 	struct ff_device *ff = dev->ff;  in input_ff_upload()  local
116 	if (!test_bit(effect->type, ff->ffbit)) {  in input_ff_upload()
117 		ret = compat_effect(ff, effect);  in input_ff_upload()
122 	mutex_lock(&ff->mutex);  in input_ff_upload()
125 		for (id = 0; id < ff->max_effects; id++)  in input_ff_upload()
126 			if (!ff->effect_owners[id])  in input_ff_upload()
129 		if (id >= ff->max_effects) {  in input_ff_upload()
140 		ret = check_effect_access(ff, id, file);  in input_ff_upload()
144 		old = &ff->effects[id];  in input_ff_upload()
152 	ret = ff->upload(dev, effect, old);  in input_ff_upload()
157 	ff->effects[id] = *effect;  in input_ff_upload()
158 	ff->effect_owners[id] = file;  in input_ff_upload()
162 	mutex_unlock(&ff->mutex);  in input_ff_upload()
174 	struct ff_device *ff = dev->ff;  in erase_effect()  local
177 	error = check_effect_access(ff, effect_id, file);  in erase_effect()
182 	ff->playback(dev, effect_id, 0);  in erase_effect()
183 	ff->effect_owners[effect_id] = NULL;  in erase_effect()
186 	if (ff->erase) {  in erase_effect()
187 		error = ff->erase(dev, effect_id);  in erase_effect()
190 			ff->effect_owners[effect_id] = file;  in erase_effect()
212 	struct ff_device *ff = dev->ff;  in input_ff_erase()  local
218 	mutex_lock(&ff->mutex);  in input_ff_erase()
220 	mutex_unlock(&ff->mutex);  in input_ff_erase()
237 	struct ff_device *ff = dev->ff;  in input_ff_flush()  local
242 	mutex_lock(&ff->mutex);  in input_ff_flush()
244 	for (i = 0; i < ff->max_effects; i++)  in input_ff_flush()
247 	mutex_unlock(&ff->mutex);  in input_ff_flush()
263 	struct ff_device *ff = dev->ff;  in input_ff_event()  local
273 		ff->set_gain(dev, value);  in input_ff_event()
280 		ff->set_autocenter(dev, value);  in input_ff_event()
284 		if (check_effect_access(ff, code, NULL) == 0)  in input_ff_event()
285 			ff->playback(dev, code, value);  in input_ff_event()
301  * Once ff device is created you need to setup its upload, erase,
306 	struct ff_device *ff;  in input_ff_create()  local
320 	ff_dev_size = struct_size(ff, effect_owners, max_effects);  in input_ff_create()
324 	ff = kzalloc(ff_dev_size, GFP_KERNEL);  in input_ff_create()
325 	if (!ff)  in input_ff_create()
328 	ff->effects = kcalloc(max_effects, sizeof(struct ff_effect),  in input_ff_create()
330 	if (!ff->effects) {  in input_ff_create()
331 		kfree(ff);  in input_ff_create()
335 	ff->max_effects = max_effects;  in input_ff_create()
336 	mutex_init(&ff->mutex);  in input_ff_create()
338 	dev->ff = ff;  in input_ff_create()
343 	/* Copy "true" bits into ff device bitmap */  in input_ff_create()
345 		__set_bit(i, ff->ffbit);  in input_ff_create()
348 	if (test_bit(FF_PERIODIC, ff->ffbit))  in input_ff_create()
365 	struct ff_device *ff = dev->ff;  in input_ff_destroy()  local
368 	if (ff) {  in input_ff_destroy()
369 		if (ff->destroy)  in input_ff_destroy()
370 			ff->destroy(ff);  in input_ff_destroy()
371 		kfree(ff->private);  in input_ff_destroy()
372 		kfree(ff->effects);  in input_ff_destroy()
373 		kfree(ff);  in input_ff_destroy()
374 		dev->ff = NULL;  in input_ff_destroy()