50 void cx18_queue_init(struct cx18_queue *q)  in cx18_queue_init()  argument
52 	INIT_LIST_HEAD(&q->list);  in cx18_queue_init()
53 	atomic_set(&q->depth, 0);  in cx18_queue_init()
54 	q->bytesused = 0;  in cx18_queue_init()
58 				 struct cx18_queue *q, int to_front)  in _cx18_enqueue()  argument
61 	if (q != &s->q_full) {  in _cx18_enqueue()
70 	if (q == &s->q_busy &&  in _cx18_enqueue()
71 	    atomic_read(&q->depth) >= CX18_MAX_FW_MDLS_PER_STREAM)  in _cx18_enqueue()
72 		q = &s->q_free;  in _cx18_enqueue()
74 	spin_lock(&q->lock);  in _cx18_enqueue()
77 		list_add(&mdl->list, &q->list); /* LIFO */  in _cx18_enqueue()
79 		list_add_tail(&mdl->list, &q->list); /* FIFO */  in _cx18_enqueue()
80 	q->bytesused += mdl->bytesused - mdl->readpos;  in _cx18_enqueue()
81 	atomic_inc(&q->depth);  in _cx18_enqueue()
83 	spin_unlock(&q->lock);  in _cx18_enqueue()
84 	return q;  in _cx18_enqueue()
87 struct cx18_mdl *cx18_dequeue(struct cx18_stream *s, struct cx18_queue *q)  in cx18_dequeue()  argument
91 	spin_lock(&q->lock);  in cx18_dequeue()
92 	if (!list_empty(&q->list)) {  in cx18_dequeue()
93 		mdl = list_first_entry(&q->list, struct cx18_mdl, list);  in cx18_dequeue()
95 		q->bytesused -= mdl->bytesused - mdl->readpos;  in cx18_dequeue()
97 		atomic_dec(&q->depth);  in cx18_dequeue()
99 	spin_unlock(&q->lock);  in cx18_dequeue()