51 static inline void ath10k_htc_restore_tx_skb(struct ath10k_htc *htc,  in ath10k_htc_restore_tx_skb()  argument
56 	dma_unmap_single(htc->ar->dev, skb_cb->paddr, skb->len, DMA_TO_DEVICE);  in ath10k_htc_restore_tx_skb()
63 	struct ath10k *ar = ep->htc->ar;  in ath10k_htc_notify_tx_completion()
68 	ath10k_htc_restore_tx_skb(ep->htc, skb);  in ath10k_htc_notify_tx_completion()
76 	ep->ep_ops.ep_tx_complete(ep->htc->ar, skb);  in ath10k_htc_notify_tx_completion()
91 	spin_lock_bh(&ep->htc->tx_lock);  in ath10k_htc_prepare_tx_skb()
93 	spin_unlock_bh(&ep->htc->tx_lock);  in ath10k_htc_prepare_tx_skb()
96 int ath10k_htc_send(struct ath10k_htc *htc,  in ath10k_htc_send()  argument
100 	struct ath10k *ar = htc->ar;  in ath10k_htc_send()
101 	struct ath10k_htc_ep *ep = &htc->endpoint[eid];  in ath10k_htc_send()
104 	struct device *dev = htc->ar->dev;  in ath10k_htc_send()
108 	if (htc->ar->state == ATH10K_STATE_WEDGED)  in ath10k_htc_send()
119 		credits = DIV_ROUND_UP(skb->len, htc->target_credit_size);  in ath10k_htc_send()
120 		spin_lock_bh(&htc->tx_lock);  in ath10k_htc_send()
122 			spin_unlock_bh(&htc->tx_lock);  in ath10k_htc_send()
130 		spin_unlock_bh(&htc->tx_lock);  in ath10k_htc_send()
149 	ret = ath10k_hif_tx_sg(htc->ar, ep->ul_pipe_id, &sg_item, 1);  in ath10k_htc_send()
159 		spin_lock_bh(&htc->tx_lock);  in ath10k_htc_send()
164 		spin_unlock_bh(&htc->tx_lock);  in ath10k_htc_send()
167 			ep->ep_ops.ep_tx_credits(htc->ar);  in ath10k_htc_send()
176 	struct ath10k_htc *htc = &ar->htc;  in ath10k_htc_tx_completion_handler()  local
184 	ep = &htc->endpoint[skb_cb->eid];  in ath10k_htc_tx_completion_handler()
196 ath10k_htc_process_credit_report(struct ath10k_htc *htc,  in ath10k_htc_process_credit_report()  argument
201 	struct ath10k *ar = htc->ar;  in ath10k_htc_process_credit_report()
210 	spin_lock_bh(&htc->tx_lock);  in ath10k_htc_process_credit_report()
215 		ep = &htc->endpoint[report->eid];  in ath10k_htc_process_credit_report()
222 			spin_unlock_bh(&htc->tx_lock);  in ath10k_htc_process_credit_report()
223 			ep->ep_ops.ep_tx_credits(htc->ar);  in ath10k_htc_process_credit_report()
224 			spin_lock_bh(&htc->tx_lock);  in ath10k_htc_process_credit_report()
227 	spin_unlock_bh(&htc->tx_lock);  in ath10k_htc_process_credit_report()
230 static int ath10k_htc_process_trailer(struct ath10k_htc *htc,  in ath10k_htc_process_trailer()  argument
235 	struct ath10k *ar = htc->ar;  in ath10k_htc_process_trailer()
269 			ath10k_htc_process_credit_report(htc,  in ath10k_htc_process_trailer()
298 	struct ath10k_htc *htc = &ar->htc;  in ath10k_htc_rx_completion_handler()  local
319 	ep = &htc->endpoint[eid];  in ath10k_htc_rx_completion_handler()
359 		status = ath10k_htc_process_trailer(htc, trailer,  in ath10k_htc_rx_completion_handler()
378 			if (completion_done(&htc->ctl_resp)) {  in ath10k_htc_rx_completion_handler()
384 				complete(&htc->ctl_resp);  in ath10k_htc_rx_completion_handler()
388 			htc->control_resp_len =  in ath10k_htc_rx_completion_handler()
392 			memcpy(htc->control_resp_buffer, skb->data,  in ath10k_htc_rx_completion_handler()
393 			       htc->control_resp_len);  in ath10k_htc_rx_completion_handler()
395 			complete(&htc->ctl_resp);  in ath10k_htc_rx_completion_handler()
398 			htc->htc_ops.target_send_suspend_complete(ar);  in ath10k_htc_rx_completion_handler()
461 static void ath10k_htc_reset_endpoint_states(struct ath10k_htc *htc)  in ath10k_htc_reset_endpoint_states()  argument
467 		ep = &htc->endpoint[i];  in ath10k_htc_reset_endpoint_states()
472 		ep->htc = htc;  in ath10k_htc_reset_endpoint_states()
477 static void ath10k_htc_setup_target_buffer_assignments(struct ath10k_htc *htc)  in ath10k_htc_setup_target_buffer_assignments()  argument
481 	entry = &htc->service_tx_alloc[0];  in ath10k_htc_setup_target_buffer_assignments()
490 	entry->credit_allocation = htc->total_transmit_credits;  in ath10k_htc_setup_target_buffer_assignments()
493 static u8 ath10k_htc_get_credit_allocation(struct ath10k_htc *htc,  in ath10k_htc_get_credit_allocation()  argument
500 		if (htc->service_tx_alloc[i].service_id == service_id)  in ath10k_htc_get_credit_allocation()
502 			    htc->service_tx_alloc[i].credit_allocation;  in ath10k_htc_get_credit_allocation()
508 int ath10k_htc_wait_target(struct ath10k_htc *htc)  in ath10k_htc_wait_target()  argument
510 	struct ath10k *ar = htc->ar;  in ath10k_htc_wait_target()
520 	time_left = wait_for_completion_timeout(&htc->ctl_resp,  in ath10k_htc_wait_target()
532 			ath10k_hif_send_complete_check(htc->ar, i, 1);  in ath10k_htc_wait_target()
535 		wait_for_completion_timeout(&htc->ctl_resp,  in ath10k_htc_wait_target()
547 	if (htc->control_resp_len < sizeof(msg->hdr) + sizeof(msg->ready)) {  in ath10k_htc_wait_target()
549 			   htc->control_resp_len);  in ath10k_htc_wait_target()
553 	msg = (struct ath10k_htc_msg *)htc->control_resp_buffer;  in ath10k_htc_wait_target()
563 	htc->total_transmit_credits = credit_count;  in ath10k_htc_wait_target()
564 	htc->target_credit_size = credit_size;  in ath10k_htc_wait_target()
568 		   htc->total_transmit_credits,  in ath10k_htc_wait_target()
569 		   htc->target_credit_size);  in ath10k_htc_wait_target()
571 	if ((htc->total_transmit_credits == 0) ||  in ath10k_htc_wait_target()
572 	    (htc->target_credit_size == 0)) {  in ath10k_htc_wait_target()
577 	ath10k_htc_setup_target_buffer_assignments(htc);  in ath10k_htc_wait_target()
588 	status = ath10k_htc_connect_service(htc, &conn_req, &conn_resp);  in ath10k_htc_wait_target()
598 int ath10k_htc_connect_service(struct ath10k_htc *htc,  in ath10k_htc_connect_service()  argument
602 	struct ath10k *ar = htc->ar;  in ath10k_htc_connect_service()
626 	tx_alloc = ath10k_htc_get_credit_allocation(htc,  in ath10k_htc_connect_service()
633 	skb = ath10k_htc_build_tx_ctrl_skb(htc->ar);  in ath10k_htc_connect_service()
659 	reinit_completion(&htc->ctl_resp);  in ath10k_htc_connect_service()
661 	status = ath10k_htc_send(htc, ATH10K_HTC_EP_0, skb);  in ath10k_htc_connect_service()
668 	time_left = wait_for_completion_timeout(&htc->ctl_resp,  in ath10k_htc_connect_service()
676 	msg = (struct ath10k_htc_msg *)htc->control_resp_buffer;  in ath10k_htc_connect_service()
682 	    (htc->control_resp_len < sizeof(msg->hdr) +  in ath10k_htc_connect_service()
714 	ep = &htc->endpoint[assigned_eid];  in ath10k_htc_connect_service()
729 	ep->tx_credit_size = htc->target_credit_size;  in ath10k_htc_connect_service()
731 					 htc->target_credit_size;  in ath10k_htc_connect_service()
733 	if (ep->max_ep_message_len % htc->target_credit_size)  in ath10k_htc_connect_service()
739 	status = ath10k_hif_map_service_to_pipe(htc->ar,  in ath10k_htc_connect_service()
778 int ath10k_htc_start(struct ath10k_htc *htc)  in ath10k_htc_start()  argument
780 	struct ath10k *ar = htc->ar;  in ath10k_htc_start()
785 	skb = ath10k_htc_build_tx_ctrl_skb(htc->ar);  in ath10k_htc_start()
798 	status = ath10k_htc_send(htc, ATH10K_HTC_EP_0, skb);  in ath10k_htc_start()
811 	struct ath10k_htc *htc = &ar->htc;  in ath10k_htc_init()  local
813 	spin_lock_init(&htc->tx_lock);  in ath10k_htc_init()
815 	ath10k_htc_reset_endpoint_states(htc);  in ath10k_htc_init()
817 	htc->ar = ar;  in ath10k_htc_init()
820 	ep = &htc->endpoint[ATH10K_HTC_EP_0];  in ath10k_htc_init()
824 	init_completion(&htc->ctl_resp);  in ath10k_htc_init()