12  * Set the magnitude of a constant force effect
44  * Upload the component of an effect dealing with the period, phase and magnitude
81  * Uploads the part of an effect setting the envelope of the force
174  * Analyse the changes in an effect, and tell if we need to send an condition
185 		dev_warn(&iforce->dev->dev, "bad effect type in %s\n",  in need_condition_modifier()
202  * Analyse the changes in an effect, and tell if we need to send a magnitude
207 				   struct ff_effect *effect)  in need_magnitude_modifier()  argument
209 	if (effect->type != FF_CONSTANT) {  in need_magnitude_modifier()
210 		dev_warn(&iforce->dev->dev, "bad effect type in %s\n",  in need_magnitude_modifier()
215 	return old->u.constant.level != effect->u.constant.level;  in need_magnitude_modifier()
219  * Analyse the changes in an effect, and tell if we need to send an envelope
223 				  struct ff_effect *effect)  in need_envelope_modifier()  argument
225 	switch (effect->type) {  in need_envelope_modifier()
227 		if (old->u.constant.envelope.attack_length != effect->u.constant.envelope.attack_length  in need_envelope_modifier()
228 		|| old->u.constant.envelope.attack_level != effect->u.constant.envelope.attack_level  in need_envelope_modifier()
229 		|| old->u.constant.envelope.fade_length != effect->u.constant.envelope.fade_length  in need_envelope_modifier()
230 		|| old->u.constant.envelope.fade_level != effect->u.constant.envelope.fade_level)  in need_envelope_modifier()
235 		if (old->u.periodic.envelope.attack_length != effect->u.periodic.envelope.attack_length  in need_envelope_modifier()
236 		|| old->u.periodic.envelope.attack_level != effect->u.periodic.envelope.attack_level  in need_envelope_modifier()
237 		|| old->u.periodic.envelope.fade_length != effect->u.periodic.envelope.fade_length  in need_envelope_modifier()
238 		|| old->u.periodic.envelope.fade_level != effect->u.periodic.envelope.fade_level)  in need_envelope_modifier()
243 		dev_warn(&iforce->dev->dev, "bad effect type in %s\n",  in need_envelope_modifier()
251  * Analyse the changes in an effect, and tell if we need to send a periodic
252  * parameter effect
258 		dev_warn(&iforce->dev->dev, "bad effect type in %s\n",  in need_period_modifier()
269  * Analyse the changes in an effect, and tell if we need to send an effect
316 	/* Stop effect */  in make_core()
321 	/* If needed, restart effect */  in make_core()
331  * Upload a periodic effect to the device
334 int iforce_upload_periodic(struct iforce *iforce, struct ff_effect *effect, struct ff_effect *old)  in iforce_upload_periodic()  argument
337 	int core_id = effect->id;  in iforce_upload_periodic()
345 	if (!old || need_period_modifier(iforce, old, effect)) {  in iforce_upload_periodic()
348 			effect->u.periodic.magnitude, effect->u.periodic.offset,  in iforce_upload_periodic()
349 			effect->u.periodic.period, effect->u.periodic.phase);  in iforce_upload_periodic()
355 	if (!old || need_envelope_modifier(iforce, old, effect)) {  in iforce_upload_periodic()
358 			effect->u.periodic.envelope.attack_length,  in iforce_upload_periodic()
359 			effect->u.periodic.envelope.attack_level,  in iforce_upload_periodic()
360 			effect->u.periodic.envelope.fade_length,  in iforce_upload_periodic()
361 			effect->u.periodic.envelope.fade_level);  in iforce_upload_periodic()
367 	switch (effect->u.periodic.waveform) {  in iforce_upload_periodic()
376 	if (!old || need_core(old, effect)) {  in iforce_upload_periodic()
377 		core_err = make_core(iforce, effect->id,  in iforce_upload_periodic()
382 			effect->replay.length,  in iforce_upload_periodic()
383 			effect->replay.delay,  in iforce_upload_periodic()
384 			effect->trigger.button,  in iforce_upload_periodic()
385 			effect->trigger.interval,  in iforce_upload_periodic()
386 			effect->direction);  in iforce_upload_periodic()
399  * Upload a constant force effect
402  *  0 Ok, effect created or updated
403  *  1 effect did not change since last upload, and no packet was therefore sent
405 int iforce_upload_constant(struct iforce *iforce, struct ff_effect *effect, struct ff_effect *old)  in iforce_upload_constant()  argument
407 	int core_id = effect->id;  in iforce_upload_constant()
415 	if (!old || need_magnitude_modifier(iforce, old, effect)) {  in iforce_upload_constant()
418 			effect->u.constant.level);  in iforce_upload_constant()
424 	if (!old || need_envelope_modifier(iforce, old, effect)) {  in iforce_upload_constant()
427 			effect->u.constant.envelope.attack_length,  in iforce_upload_constant()
428 			effect->u.constant.envelope.attack_level,  in iforce_upload_constant()
429 			effect->u.constant.envelope.fade_length,  in iforce_upload_constant()
430 			effect->u.constant.envelope.fade_level);  in iforce_upload_constant()
436 	if (!old || need_core(old, effect)) {  in iforce_upload_constant()
437 		core_err = make_core(iforce, effect->id,  in iforce_upload_constant()
442 			effect->replay.length,  in iforce_upload_constant()
443 			effect->replay.delay,  in iforce_upload_constant()
444 			effect->trigger.button,  in iforce_upload_constant()
445 			effect->trigger.interval,  in iforce_upload_constant()
446 			effect->direction);  in iforce_upload_constant()
459  * Upload an condition effect. Those are for example friction, inertia, springs...
461 int iforce_upload_condition(struct iforce *iforce, struct ff_effect *effect, struct ff_effect *old)  in iforce_upload_condition()  argument
463 	int core_id = effect->id;  in iforce_upload_condition()
471 	switch (effect->type) {  in iforce_upload_condition()
477 	if (!old || need_condition_modifier(iforce, old, effect)) {  in iforce_upload_condition()
480 			effect->u.condition[0].right_saturation,  in iforce_upload_condition()
481 			effect->u.condition[0].left_saturation,  in iforce_upload_condition()
482 			effect->u.condition[0].right_coeff,  in iforce_upload_condition()
483 			effect->u.condition[0].left_coeff,  in iforce_upload_condition()
484 			effect->u.condition[0].deadband,  in iforce_upload_condition()
485 			effect->u.condition[0].center);  in iforce_upload_condition()
492 			effect->u.condition[1].right_saturation,  in iforce_upload_condition()
493 			effect->u.condition[1].left_saturation,  in iforce_upload_condition()
494 			effect->u.condition[1].right_coeff,  in iforce_upload_condition()
495 			effect->u.condition[1].left_coeff,  in iforce_upload_condition()
496 			effect->u.condition[1].deadband,  in iforce_upload_condition()
497 			effect->u.condition[1].center);  in iforce_upload_condition()
504 	if (!old || need_core(old, effect)) {  in iforce_upload_condition()
505 		core_err = make_core(iforce, effect->id,  in iforce_upload_condition()
508 			effect->replay.length, effect->replay.delay,  in iforce_upload_condition()
509 			effect->trigger.button, effect->trigger.interval,  in iforce_upload_condition()
510 			effect->direction);  in iforce_upload_condition()