ath/ath9k/htc_hst.c

21 static int htc_issue_send(struct htc_target *target, struct sk_buff* skb,
26 	struct htc_endpoint *endpoint = &target->endpoint[epid];
35 	status = target->hif->send(target->hif_dev, endpoint->ul_pipeid, skb);
88 static void htc_process_target_rdy(struct htc_target *target,
94 	target->credit_size = be16_to_cpu(htc_ready_msg->credit_size);
96 	endpoint = &target->endpoint[ENDPOINT0];
99 	atomic_inc(&target->tgt_ready);
100 	complete(&target->target_wait);
103 static void htc_process_conn_rsp(struct htc_target *target,
128 		endpoint = &target->endpoint[epid];
131 			tmp_endpoint = &target->endpoint[tepid];
147 		target->conn_rsp_epid = epid;
148 		complete(&target->cmd_wait);
150 		target->conn_rsp_epid = ENDPOINT_UNUSED;
154 static int htc_config_pipe_credits(struct htc_target *target)
163 		dev_err(target->dev, "failed to allocate send buffer\n");
172 	cp_msg->credits = target->credits;
174 	target->htc_flags |= HTC_OP_CONFIG_PIPE_CREDITS;
176 	ret = htc_issue_send(target, skb, skb->len, 0, ENDPOINT0);
180 	time_left = wait_for_completion_timeout(&target->cmd_wait, HZ);
182 		dev_err(target->dev, "HTC credit config timeout\n");
192 static int htc_setup_complete(struct htc_target *target)
201 		dev_err(target->dev, "failed to allocate send buffer\n");
209 	target->htc_flags |= HTC_OP_START_WAIT;
211 	ret = htc_issue_send(target, skb, skb->len, 0, ENDPOINT0);
215 	time_left = wait_for_completion_timeout(&target->cmd_wait, HZ);
217 		dev_err(target->dev, "HTC start timeout\n");
230 int htc_init(struct htc_target *target)
234 	ret = htc_config_pipe_credits(target);
238 	return htc_setup_complete(target);
241 int htc_connect_service(struct htc_target *target,
252 	endpoint = get_next_avail_ep(target->endpoint);
254 		dev_err(target->dev, "Endpoint is not available for service %d\n",
268 		dev_err(target->dev, "Failed to allocate buf to send"
286 	ret = htc_issue_send(target, skb, skb->len, 0, ENDPOINT0);
290 	time_left = wait_for_completion_timeout(&target->cmd_wait, HZ);
292 		dev_err(target->dev, "Service connection timeout for: %d\n",
297 	if (target->conn_rsp_epid < 0 || target->conn_rsp_epid >= ENDPOINT_MAX)
300 	*conn_rsp_epid = target->conn_rsp_epid;
307 int htc_send(struct htc_target *target, struct sk_buff *skb)
312 	return htc_issue_send(target, skb, skb->len, 0, tx_ctl->epid);
315 int htc_send_epid(struct htc_target *target, struct sk_buff *skb,
318 	return htc_issue_send(target, skb, skb->len, 0, epid);
321 void htc_stop(struct htc_target *target)
323 	target->hif->stop(target->hif_dev);
326 void htc_start(struct htc_target *target)
328 	target->hif->start(target->hif_dev);
331 void htc_sta_drain(struct htc_target *target, u8 idx)
333 	target->hif->sta_drain(target->hif_dev, idx);
500 	struct htc_target *target;
502 	target = kzalloc(sizeof(struct htc_target), GFP_KERNEL);
503 	if (!target)
506 	init_completion(&target->target_wait);
507 	init_completion(&target->cmd_wait);
509 	target->hif = hif;
510 	target->hif_dev = hif_handle;
511 	target->dev = dev;
514 	endpoint = &target->endpoint[ENDPOINT0];
518 	atomic_set(&target->tgt_ready, 0);
520 	return target;
528 int ath9k_htc_hw_init(struct htc_target *target,
532 	if (ath9k_htc_probe_device(target, dev, devid, product, drv_info)) {
540 void ath9k_htc_hw_deinit(struct htc_target *target, bool hot_unplug)
542 	if (target)
543 		ath9k_htc_disconnect_device(target, hot_unplug);