iss_ipipe.h revision b9e50a06
1/*
2 * TI OMAP4 ISS V4L2 Driver - ISP IPIPE module
3 *
4 * Copyright (C) 2012 Texas Instruments, Inc.
5 *
6 * Author: Sergio Aguirre <sergio.a.aguirre@gmail.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14#ifndef OMAP4_ISS_IPIPE_H
15#define OMAP4_ISS_IPIPE_H
16
17#include "iss_video.h"
18
19enum ipipe_input_entity {
20	IPIPE_INPUT_NONE,
21	IPIPE_INPUT_IPIPEIF,
22};
23
24#define IPIPE_OUTPUT_VP				BIT(0)
25
26/* Sink and source IPIPE pads */
27#define IPIPE_PAD_SINK				0
28#define IPIPE_PAD_SOURCE_VP			1
29#define IPIPE_PADS_NUM				2
30
31/*
32 * struct iss_ipipe_device - Structure for the IPIPE module to store its own
33 *			    information
34 * @subdev: V4L2 subdevice
35 * @pads: Sink and source media entity pads
36 * @formats: Active video formats
37 * @input: Active input
38 * @output: Active outputs
39 * @error: A hardware error occurred during capture
40 * @state: Streaming state
41 * @wait: Wait queue used to stop the module
42 * @stopping: Stopping state
43 */
44struct iss_ipipe_device {
45	struct v4l2_subdev subdev;
46	struct media_pad pads[IPIPE_PADS_NUM];
47	struct v4l2_mbus_framefmt formats[IPIPE_PADS_NUM];
48
49	enum ipipe_input_entity input;
50	unsigned int output;
51	unsigned int error;
52
53	enum iss_pipeline_stream_state state;
54	wait_queue_head_t wait;
55	atomic_t stopping;
56};
57
58struct iss_device;
59
60int omap4iss_ipipe_register_entities(struct iss_ipipe_device *ipipe,
61				     struct v4l2_device *vdev);
62void omap4iss_ipipe_unregister_entities(struct iss_ipipe_device *ipipe);
63
64int omap4iss_ipipe_init(struct iss_device *iss);
65void omap4iss_ipipe_cleanup(struct iss_device *iss);
66
67#endif	/* OMAP4_ISS_IPIPE_H */
68