1/* SPDX-License-Identifier: GPL-2.0+ */
2/*
3 * TI OMAP4 ISS V4L2 Driver - ISP IPIPE module
4 *
5 * Copyright (C) 2012 Texas Instruments, Inc.
6 *
7 * Author: Sergio Aguirre <sergio.a.aguirre@gmail.com>
8 */
9
10#ifndef OMAP4_ISS_IPIPE_H
11#define OMAP4_ISS_IPIPE_H
12
13#include "iss_video.h"
14
15enum ipipe_input_entity {
16	IPIPE_INPUT_NONE,
17	IPIPE_INPUT_IPIPEIF,
18};
19
20#define IPIPE_OUTPUT_VP				BIT(0)
21
22/* Sink and source IPIPE pads */
23#define IPIPE_PAD_SINK				0
24#define IPIPE_PAD_SOURCE_VP			1
25#define IPIPE_PADS_NUM				2
26
27/*
28 * struct iss_ipipe_device - Structure for the IPIPE module to store its own
29 *			    information
30 * @subdev: V4L2 subdevice
31 * @pads: Sink and source media entity pads
32 * @formats: Active video formats
33 * @input: Active input
34 * @output: Active outputs
35 * @error: A hardware error occurred during capture
36 * @state: Streaming state
37 * @wait: Wait queue used to stop the module
38 * @stopping: Stopping state
39 */
40struct iss_ipipe_device {
41	struct v4l2_subdev subdev;
42	struct media_pad pads[IPIPE_PADS_NUM];
43	struct v4l2_mbus_framefmt formats[IPIPE_PADS_NUM];
44
45	enum ipipe_input_entity input;
46	unsigned int output;
47	unsigned int error;
48
49	enum iss_pipeline_stream_state state;
50	wait_queue_head_t wait;
51	atomic_t stopping;
52};
53
54struct iss_device;
55
56int omap4iss_ipipe_register_entities(struct iss_ipipe_device *ipipe,
57				     struct v4l2_device *vdev);
58void omap4iss_ipipe_unregister_entities(struct iss_ipipe_device *ipipe);
59
60int omap4iss_ipipe_init(struct iss_device *iss);
61void omap4iss_ipipe_cleanup(struct iss_device *iss);
62
63#endif	/* OMAP4_ISS_IPIPE_H */
64