1/*
2 * Copyright (C) STMicroelectronics SA 2014
3 * Authors: Benjamin Gaignard <benjamin.gaignard@st.com>
4 *          Fabien Dessenne <fabien.dessenne@st.com>
5 *          for STMicroelectronics.
6 * License terms:  GNU General Public License (GPL), version 2
7 */
8
9#ifndef _STI_MIXER_H_
10#define _STI_MIXER_H_
11
12#include <drm/drmP.h>
13
14#include "sti_layer.h"
15
16#define to_sti_mixer(x) container_of(x, struct sti_mixer, drm_crtc)
17
18/**
19 * STI Mixer subdevice structure
20 *
21 * @dev: driver device
22 * @regs: mixer registers
23 * @id: id of the mixer
24 * @drm_crtc: crtc object link to the mixer
25 * @pending_event: set if a flip event is pending on crtc
26 * @enabled: to know if the mixer is active or not
27 */
28struct sti_mixer {
29	struct device *dev;
30	void __iomem *regs;
31	int id;
32	struct drm_crtc	drm_crtc;
33	struct drm_pending_vblank_event *pending_event;
34	bool enabled;
35};
36
37const char *sti_mixer_to_str(struct sti_mixer *mixer);
38
39struct sti_mixer *sti_mixer_create(struct device *dev, int id,
40		void __iomem *baseaddr);
41
42int sti_mixer_set_layer_status(struct sti_mixer *mixer,
43		struct sti_layer *layer, bool status);
44void sti_mixer_clear_all_layers(struct sti_mixer *mixer);
45int sti_mixer_set_layer_depth(struct sti_mixer *mixer, struct sti_layer *layer);
46int sti_mixer_active_video_area(struct sti_mixer *mixer,
47		struct drm_display_mode *mode);
48
49void sti_mixer_set_background_status(struct sti_mixer *mixer, bool enable);
50
51/* depth in Cross-bar control = z order */
52#define GAM_MIXER_NB_DEPTH_LEVEL 7
53
54#define STI_MIXER_MAIN 0
55#define STI_MIXER_AUX  1
56
57#endif
58