29 	return &fh->adap->devnode;  in cec_devnode_data()
38 	struct cec_adapter *adap = fh->adap;  in cec_poll()  local
42 	if (!cec_is_registered(adap))  in cec_poll()
44 	mutex_lock(&adap->lock);  in cec_poll()
45 	if (adap->is_configured &&  in cec_poll()
46 	    adap->transmit_queue_sz < CEC_MAX_MSG_TX_QUEUE_SZ)  in cec_poll()
52 	mutex_unlock(&adap->lock);  in cec_poll()
56 static bool cec_is_busy(const struct cec_adapter *adap,  in cec_is_busy()  argument
59 	bool valid_initiator = adap->cec_initiator && adap->cec_initiator == fh;  in cec_is_busy()
60 	bool valid_follower = adap->cec_follower && adap->cec_follower == fh;  in cec_is_busy()
71 	return adap->cec_initiator ||  in cec_is_busy()
75 static long cec_adap_g_caps(struct cec_adapter *adap,  in cec_adap_g_caps()  argument
80 	strscpy(caps.driver, adap->devnode.dev.parent->driver->name,  in cec_adap_g_caps()
82 	strscpy(caps.name, adap->name, sizeof(caps.name));  in cec_adap_g_caps()
83 	caps.available_log_addrs = adap->available_log_addrs;  in cec_adap_g_caps()
84 	caps.capabilities = adap->capabilities;  in cec_adap_g_caps()
91 static long cec_adap_g_phys_addr(struct cec_adapter *adap,  in cec_adap_g_phys_addr()  argument
96 	mutex_lock(&adap->lock);  in cec_adap_g_phys_addr()
97 	phys_addr = adap->phys_addr;  in cec_adap_g_phys_addr()
98 	mutex_unlock(&adap->lock);  in cec_adap_g_phys_addr()
121 static long cec_adap_s_phys_addr(struct cec_adapter *adap, struct cec_fh *fh,  in cec_adap_s_phys_addr()  argument
127 	if (!(adap->capabilities & CEC_CAP_PHYS_ADDR))  in cec_adap_s_phys_addr()
135 	mutex_lock(&adap->lock);  in cec_adap_s_phys_addr()
136 	if (cec_is_busy(adap, fh))  in cec_adap_s_phys_addr()
139 		__cec_s_phys_addr(adap, phys_addr, block);  in cec_adap_s_phys_addr()
140 	mutex_unlock(&adap->lock);  in cec_adap_s_phys_addr()
144 static long cec_adap_g_log_addrs(struct cec_adapter *adap,  in cec_adap_g_log_addrs()  argument
149 	mutex_lock(&adap->lock);  in cec_adap_g_log_addrs()
150 	log_addrs = adap->log_addrs;  in cec_adap_g_log_addrs()
151 	if (!adap->is_configured)  in cec_adap_g_log_addrs()
154 	mutex_unlock(&adap->lock);  in cec_adap_g_log_addrs()
161 static long cec_adap_s_log_addrs(struct cec_adapter *adap, struct cec_fh *fh,  in cec_adap_s_log_addrs()  argument
167 	if (!(adap->capabilities & CEC_CAP_LOG_ADDRS))  in cec_adap_s_log_addrs()
174 	mutex_lock(&adap->lock);  in cec_adap_s_log_addrs()
175 	if (!adap->is_configuring &&  in cec_adap_s_log_addrs()
176 	    (!log_addrs.num_log_addrs || !adap->is_configured) &&  in cec_adap_s_log_addrs()
177 	    !cec_is_busy(adap, fh)) {  in cec_adap_s_log_addrs()
178 		err = __cec_s_log_addrs(adap, &log_addrs, block);  in cec_adap_s_log_addrs()
180 			log_addrs = adap->log_addrs;  in cec_adap_s_log_addrs()
182 	mutex_unlock(&adap->lock);  in cec_adap_s_log_addrs()
190 static long cec_transmit(struct cec_adapter *adap, struct cec_fh *fh,  in cec_transmit()  argument
196 	if (!(adap->capabilities & CEC_CAP_TRANSMIT))  in cec_transmit()
201 	mutex_lock(&adap->lock);  in cec_transmit()
202 	if (adap->log_addrs.num_log_addrs == 0)  in cec_transmit()
204 	else if (adap->is_configuring)  in cec_transmit()
206 	else if (cec_is_busy(adap, fh))  in cec_transmit()
209 		err = cec_transmit_msg_fh(adap, &msg, fh, block);  in cec_transmit()
210 	mutex_unlock(&adap->lock);  in cec_transmit()
269 static long cec_receive(struct cec_adapter *adap, struct cec_fh *fh,  in cec_receive()  argument
287 static long cec_dqevent(struct cec_adapter *adap, struct cec_fh *fh,  in cec_dqevent()  argument
337 static long cec_g_mode(struct cec_adapter *adap, struct cec_fh *fh,  in cec_g_mode()  argument
347 static long cec_s_mode(struct cec_adapter *adap, struct cec_fh *fh,  in cec_s_mode()  argument
373 	    !(adap->capabilities & CEC_CAP_MONITOR_ALL)) {  in cec_s_mode()
379 	    !(adap->capabilities & CEC_CAP_MONITOR_PIN)) {  in cec_s_mode()
386 	     !(adap->capabilities & CEC_CAP_TRANSMIT)) &&  in cec_s_mode()
404 	mutex_lock(&adap->lock);  in cec_s_mode()
411 	    adap->cec_follower && adap->cec_follower != fh)  in cec_s_mode()
418 	    adap->cec_initiator && adap->cec_initiator != fh)  in cec_s_mode()
427 				err = cec_monitor_all_cnt_inc(adap);  in cec_s_mode()
429 				cec_monitor_all_cnt_dec(adap);  in cec_s_mode()
440 				err = cec_monitor_pin_cnt_inc(adap);  in cec_s_mode()
442 				cec_monitor_pin_cnt_dec(adap);  in cec_s_mode()
447 		mutex_unlock(&adap->lock);  in cec_s_mode()
452 		adap->follower_cnt--;  in cec_s_mode()
454 		adap->follower_cnt++;  in cec_s_mode()
460 		ev.event = adap->cec_pin_is_high ? CEC_EVENT_PIN_CEC_HIGH :  in cec_s_mode()
466 		adap->passthrough =  in cec_s_mode()
468 		adap->cec_follower = fh;  in cec_s_mode()
469 	} else if (adap->cec_follower == fh) {  in cec_s_mode()
470 		adap->passthrough = false;  in cec_s_mode()
471 		adap->cec_follower = NULL;  in cec_s_mode()
474 		adap->cec_initiator = fh;  in cec_s_mode()
475 	else if (adap->cec_initiator == fh)  in cec_s_mode()
476 		adap->cec_initiator = NULL;  in cec_s_mode()
479 	mutex_unlock(&adap->lock);  in cec_s_mode()
486 	struct cec_adapter *adap = fh->adap;  in cec_ioctl()  local
490 	if (!cec_is_registered(adap))  in cec_ioctl()
495 		return cec_adap_g_caps(adap, parg);  in cec_ioctl()
498 		return cec_adap_g_phys_addr(adap, parg);  in cec_ioctl()
501 		return cec_adap_s_phys_addr(adap, fh, block, parg);  in cec_ioctl()
504 		return cec_adap_g_log_addrs(adap, parg);  in cec_ioctl()
507 		return cec_adap_s_log_addrs(adap, fh, block, parg);  in cec_ioctl()
510 		return cec_transmit(adap, fh, block, parg);  in cec_ioctl()
513 		return cec_receive(adap, fh, block, parg);  in cec_ioctl()
516 		return cec_dqevent(adap, fh, block, parg);  in cec_ioctl()
519 		return cec_g_mode(adap, fh, parg);  in cec_ioctl()
522 		return cec_s_mode(adap, fh, parg);  in cec_ioctl()
533 	struct cec_adapter *adap = to_cec_adapter(devnode);  in cec_open()  local
557 	fh->adap = adap;  in cec_open()
567 	    !adap->needs_hpd &&  in cec_open()
568 	    adap->phys_addr == CEC_PHYS_ADDR_INVALID) {  in cec_open()
569 		err = adap->ops->adap_enable(adap, true);  in cec_open()
579 	ev.state_change.phys_addr = adap->phys_addr;  in cec_open()
580 	ev.state_change.log_addr_mask = adap->log_addrs.log_addr_mask;  in cec_open()
583 	if (adap->pin && adap->pin->ops->read_hpd) {  in cec_open()
584 		err = adap->pin->ops->read_hpd(adap);  in cec_open()
591 	if (adap->pin && adap->pin->ops->read_5v) {  in cec_open()
592 		err = adap->pin->ops->read_5v(adap);  in cec_open()
611 	struct cec_adapter *adap = to_cec_adapter(devnode);  in cec_release()  local
615 	mutex_lock(&adap->lock);  in cec_release()
616 	if (adap->cec_initiator == fh)  in cec_release()
617 		adap->cec_initiator = NULL;  in cec_release()
618 	if (adap->cec_follower == fh) {  in cec_release()
619 		adap->cec_follower = NULL;  in cec_release()
620 		adap->passthrough = false;  in cec_release()
623 		adap->follower_cnt--;  in cec_release()
625 		cec_monitor_pin_cnt_dec(adap);  in cec_release()
627 		cec_monitor_all_cnt_dec(adap);  in cec_release()
628 	mutex_unlock(&adap->lock);  in cec_release()
632 	if (cec_is_registered(adap) && list_empty(&devnode->fhs) &&  in cec_release()
633 	    !adap->needs_hpd && adap->phys_addr == CEC_PHYS_ADDR_INVALID) {  in cec_release()
634 		WARN_ON(adap->ops->adap_enable(adap, false));  in cec_release()
639 	mutex_lock(&adap->lock);  in cec_release()
648 	mutex_unlock(&adap->lock);  in cec_release()