1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright (C) STMicroelectronics SA 2014
4 * Authors: Benjamin Gaignard <benjamin.gaignard@st.com>
5 *          Fabien Dessenne <fabien.dessenne@st.com>
6 *          for STMicroelectronics.
7 */
8
9#ifndef _STI_MIXER_H_
10#define _STI_MIXER_H_
11
12#include <drm/drm_crtc.h>
13
14#include <drm/drm_debugfs.h>
15#include <drm/drm_file.h>
16
17#include "sti_plane.h"
18
19struct device;
20
21#define to_sti_mixer(x) container_of(x, struct sti_mixer, drm_crtc)
22
23enum sti_mixer_status {
24	STI_MIXER_READY,
25	STI_MIXER_DISABLING,
26	STI_MIXER_DISABLED,
27};
28
29/**
30 * STI Mixer subdevice structure
31 *
32 * @dev: driver device
33 * @regs: mixer registers
34 * @id: id of the mixer
35 * @drm_crtc: crtc object link to the mixer
36 * @status: to know the status of the mixer
37 */
38struct sti_mixer {
39	struct device *dev;
40	void __iomem *regs;
41	int id;
42	struct drm_crtc drm_crtc;
43	enum sti_mixer_status status;
44};
45
46const char *sti_mixer_to_str(struct sti_mixer *mixer);
47
48struct sti_mixer *sti_mixer_create(struct device *dev,
49				   struct drm_device *drm_dev,
50				   int id,
51				   void __iomem *baseaddr);
52
53int sti_mixer_set_plane_status(struct sti_mixer *mixer,
54			       struct sti_plane *plane, bool status);
55int sti_mixer_set_plane_depth(struct sti_mixer *mixer, struct sti_plane *plane);
56int sti_mixer_active_video_area(struct sti_mixer *mixer,
57				struct drm_display_mode *mode);
58
59void sti_mixer_set_background_status(struct sti_mixer *mixer, bool enable);
60
61void sti_mixer_debugfs_init(struct sti_mixer *mixer, struct drm_minor *minor);
62
63/* depth in Cross-bar control = z order */
64#define GAM_MIXER_NB_DEPTH_LEVEL 6
65
66#define STI_MIXER_MAIN 0
67#define STI_MIXER_AUX  1
68
69#endif
70