91 struct wmi *ath9k_init_wmi(struct ath9k_htc_priv *priv)  in ath9k_init_wmi()
93 	struct wmi *wmi;  in ath9k_init_wmi()  local
95 	wmi = kzalloc(sizeof(struct wmi), GFP_KERNEL);  in ath9k_init_wmi()
96 	if (!wmi)  in ath9k_init_wmi()
99 	wmi->drv_priv = priv;  in ath9k_init_wmi()
100 	wmi->stopped = false;  in ath9k_init_wmi()
101 	skb_queue_head_init(&wmi->wmi_event_queue);  in ath9k_init_wmi()
102 	spin_lock_init(&wmi->wmi_lock);  in ath9k_init_wmi()
103 	spin_lock_init(&wmi->event_lock);  in ath9k_init_wmi()
104 	mutex_init(&wmi->op_mutex);  in ath9k_init_wmi()
105 	mutex_init(&wmi->multi_write_mutex);  in ath9k_init_wmi()
106 	mutex_init(&wmi->multi_rmw_mutex);  in ath9k_init_wmi()
107 	init_completion(&wmi->cmd_wait);  in ath9k_init_wmi()
108 	INIT_LIST_HEAD(&wmi->pending_tx_events);  in ath9k_init_wmi()
109 	tasklet_setup(&wmi->wmi_event_tasklet, ath9k_wmi_event_tasklet);  in ath9k_init_wmi()
111 	return wmi;  in ath9k_init_wmi()
116 	struct wmi *wmi = priv->wmi;  in ath9k_stop_wmi()  local
118 	mutex_lock(&wmi->op_mutex);  in ath9k_stop_wmi()
119 	wmi->stopped = true;  in ath9k_stop_wmi()
120 	mutex_unlock(&wmi->op_mutex);  in ath9k_stop_wmi()
125 	kfree(priv->wmi);  in ath9k_destroy_wmi()
132 	tasklet_kill(&priv->wmi->wmi_event_tasklet);  in ath9k_wmi_event_drain()
133 	spin_lock_irqsave(&priv->wmi->wmi_lock, flags);  in ath9k_wmi_event_drain()
134 	__skb_queue_purge(&priv->wmi->wmi_event_queue);  in ath9k_wmi_event_drain()
135 	spin_unlock_irqrestore(&priv->wmi->wmi_lock, flags);  in ath9k_wmi_event_drain()
140 	struct wmi *wmi = from_tasklet(wmi, t, wmi_event_tasklet);  in ath9k_wmi_event_tasklet()  local
141 	struct ath9k_htc_priv *priv = wmi->drv_priv;  in ath9k_wmi_event_tasklet()
150 		spin_lock_irqsave(&wmi->wmi_lock, flags);  in ath9k_wmi_event_tasklet()
151 		skb = __skb_dequeue(&wmi->wmi_event_queue);  in ath9k_wmi_event_tasklet()
153 			spin_unlock_irqrestore(&wmi->wmi_lock, flags);  in ath9k_wmi_event_tasklet()
156 		spin_unlock_irqrestore(&wmi->wmi_lock, flags);  in ath9k_wmi_event_tasklet()
168 			ieee80211_queue_work(wmi->drv_priv->hw,  in ath9k_wmi_event_tasklet()
169 					     &wmi->drv_priv->fatal_work);  in ath9k_wmi_event_tasklet()
203 static void ath9k_wmi_rsp_callback(struct wmi *wmi, struct sk_buff *skb)  in ath9k_wmi_rsp_callback()  argument
207 	if (wmi->cmd_rsp_buf != NULL && wmi->cmd_rsp_len != 0)  in ath9k_wmi_rsp_callback()
208 		memcpy(wmi->cmd_rsp_buf, skb->data, wmi->cmd_rsp_len);  in ath9k_wmi_rsp_callback()
210 	complete(&wmi->cmd_wait);  in ath9k_wmi_rsp_callback()
216 	struct wmi *wmi = priv;  in ath9k_wmi_ctrl_rx()  local
221 	if (unlikely(wmi->stopped))  in ath9k_wmi_ctrl_rx()
232 		spin_lock_irqsave(&wmi->wmi_lock, flags);  in ath9k_wmi_ctrl_rx()
233 		__skb_queue_tail(&wmi->wmi_event_queue, skb);  in ath9k_wmi_ctrl_rx()
234 		spin_unlock_irqrestore(&wmi->wmi_lock, flags);  in ath9k_wmi_ctrl_rx()
235 		tasklet_schedule(&wmi->wmi_event_tasklet);  in ath9k_wmi_ctrl_rx()
240 	spin_lock_irqsave(&wmi->wmi_lock, flags);  in ath9k_wmi_ctrl_rx()
241 	if (be16_to_cpu(hdr->seq_no) != wmi->last_seq_id) {  in ath9k_wmi_ctrl_rx()
242 		spin_unlock_irqrestore(&wmi->wmi_lock, flags);  in ath9k_wmi_ctrl_rx()
247 	ath9k_wmi_rsp_callback(wmi, skb);  in ath9k_wmi_ctrl_rx()
248 	spin_unlock_irqrestore(&wmi->wmi_lock, flags);  in ath9k_wmi_ctrl_rx()
260 int ath9k_wmi_connect(struct htc_target *htc, struct wmi *wmi,  in ath9k_wmi_connect()  argument
266 	wmi->htc = htc;  in ath9k_wmi_connect()
270 	connect.ep_callbacks.priv = wmi;  in ath9k_wmi_connect()
275 	ret = htc_connect_service(htc, &connect, &wmi->ctrl_epid);  in ath9k_wmi_connect()
279 	*wmi_ctrl_epid = wmi->ctrl_epid;  in ath9k_wmi_connect()
284 static int ath9k_wmi_cmd_issue(struct wmi *wmi,  in ath9k_wmi_cmd_issue()  argument
294 	hdr->seq_no = cpu_to_be16(++wmi->tx_seq_id);  in ath9k_wmi_cmd_issue()
296 	spin_lock_irqsave(&wmi->wmi_lock, flags);  in ath9k_wmi_cmd_issue()
299 	wmi->cmd_rsp_buf = rsp_buf;  in ath9k_wmi_cmd_issue()
300 	wmi->cmd_rsp_len = rsp_len;  in ath9k_wmi_cmd_issue()
302 	wmi->last_seq_id = wmi->tx_seq_id;  in ath9k_wmi_cmd_issue()
303 	spin_unlock_irqrestore(&wmi->wmi_lock, flags);  in ath9k_wmi_cmd_issue()
305 	return htc_send_epid(wmi->htc, skb, wmi->ctrl_epid);  in ath9k_wmi_cmd_issue()
308 int ath9k_wmi_cmd(struct wmi *wmi, enum wmi_cmd_id cmd_id,  in ath9k_wmi_cmd()  argument
313 	struct ath_hw *ah = wmi->drv_priv->ah;  in ath9k_wmi_cmd()
334 	mutex_lock(&wmi->op_mutex);  in ath9k_wmi_cmd()
337 	if (unlikely(wmi->stopped)) {  in ath9k_wmi_cmd()
342 	ret = ath9k_wmi_cmd_issue(wmi, skb, cmd_id, cmd_len, rsp_buf, rsp_len);  in ath9k_wmi_cmd()
346 	time_left = wait_for_completion_timeout(&wmi->cmd_wait, timeout);  in ath9k_wmi_cmd()
350 		spin_lock_irqsave(&wmi->wmi_lock, flags);  in ath9k_wmi_cmd()
351 		wmi->last_seq_id = 0;  in ath9k_wmi_cmd()
352 		spin_unlock_irqrestore(&wmi->wmi_lock, flags);  in ath9k_wmi_cmd()
353 		mutex_unlock(&wmi->op_mutex);  in ath9k_wmi_cmd()
357 	mutex_unlock(&wmi->op_mutex);  in ath9k_wmi_cmd()
363 	mutex_unlock(&wmi->op_mutex);  in ath9k_wmi_cmd()