34 static inline void lirc_buffer_clear(struct lirc_buffer *buf)  in lirc_buffer_clear()  argument
38 	if (kfifo_initialized(&buf->fifo)) {  in lirc_buffer_clear()
39 		spin_lock_irqsave(&buf->fifo_lock, flags);  in lirc_buffer_clear()
40 		kfifo_reset(&buf->fifo);  in lirc_buffer_clear()
41 		spin_unlock_irqrestore(&buf->fifo_lock, flags);  in lirc_buffer_clear()
47 static inline int lirc_buffer_init(struct lirc_buffer *buf,  in lirc_buffer_init()  argument
53 	init_waitqueue_head(&buf->wait_poll);  in lirc_buffer_init()
54 	spin_lock_init(&buf->fifo_lock);  in lirc_buffer_init()
55 	buf->chunk_size = chunk_size;  in lirc_buffer_init()
56 	buf->size = size;  in lirc_buffer_init()
57 	ret = kfifo_alloc(&buf->fifo, size * chunk_size, GFP_KERNEL);  in lirc_buffer_init()
62 static inline void lirc_buffer_free(struct lirc_buffer *buf)  in lirc_buffer_free()  argument
64 	if (kfifo_initialized(&buf->fifo)) {  in lirc_buffer_free()
65 		kfifo_free(&buf->fifo);  in lirc_buffer_free()
71 static inline int lirc_buffer_len(struct lirc_buffer *buf)  in lirc_buffer_len()  argument
76 	spin_lock_irqsave(&buf->fifo_lock, flags);  in lirc_buffer_len()
77 	len = kfifo_len(&buf->fifo);  in lirc_buffer_len()
78 	spin_unlock_irqrestore(&buf->fifo_lock, flags);  in lirc_buffer_len()
83 static inline int lirc_buffer_full(struct lirc_buffer *buf)  in lirc_buffer_full()  argument
85 	return lirc_buffer_len(buf) == buf->size * buf->chunk_size;  in lirc_buffer_full()
88 static inline int lirc_buffer_empty(struct lirc_buffer *buf)  in lirc_buffer_empty()  argument
90 	return !lirc_buffer_len(buf);  in lirc_buffer_empty()
93 static inline int lirc_buffer_available(struct lirc_buffer *buf)  in lirc_buffer_available()  argument
95 	return buf->size - (lirc_buffer_len(buf) / buf->chunk_size);  in lirc_buffer_available()
98 static inline unsigned int lirc_buffer_read(struct lirc_buffer *buf,  in lirc_buffer_read()  argument
103 	if (lirc_buffer_len(buf) >= buf->chunk_size)  in lirc_buffer_read()
104 		ret = kfifo_out_locked(&buf->fifo, dest, buf->chunk_size,  in lirc_buffer_read()
105 				       &buf->fifo_lock);  in lirc_buffer_read()
110 static inline unsigned int lirc_buffer_write(struct lirc_buffer *buf,  in lirc_buffer_write()  argument
115 	ret = kfifo_in_locked(&buf->fifo, orig, buf->chunk_size,  in lirc_buffer_write()
116 			      &buf->fifo_lock);  in lirc_buffer_write()
134 	int (*add_to_buf) (void *data, struct lirc_buffer *buf);