/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * Copyright (C) 2019-2022 Bootlin
 * Author: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
 */

#ifndef _LOGICVC_LAYER_H_
#define _LOGICVC_LAYER_H_

#include <linux/of.h>
#include <linux/types.h>
#include <drm/drm_plane.h>

#define LOGICVC_LAYER_COLORSPACE_RGB            0
#define LOGICVC_LAYER_COLORSPACE_YUV            1

#define LOGICVC_LAYER_ALPHA_LAYER               0
#define LOGICVC_LAYER_ALPHA_PIXEL               1

struct logicvc_layer_buffer_setup {
        u8 buffer_sel;
        u16 voffset;
        u16 hoffset;
};

struct logicvc_layer_config {
        u32 colorspace;
        u32 depth;
        u32 alpha_mode;
        u32 base_offset;
        u32 buffer_offset;
        bool primary;
};

struct logicvc_layer_formats {
        u32 colorspace;
        u32 depth;
        bool alpha;
        uint32_t *formats;
};

struct logicvc_layer {
        struct logicvc_layer_config config;
        struct logicvc_layer_formats *formats;
        struct device_node *of_node;

        struct drm_plane drm_plane;
        struct list_head list;
        u32 index;
};

int logicvc_layer_buffer_find_setup(struct logicvc_drm *logicvc,
                                    struct logicvc_layer *layer,
                                    struct drm_plane_state *state,
                                    struct logicvc_layer_buffer_setup *setup);
struct logicvc_layer *logicvc_layer_get_from_index(struct logicvc_drm *logicvc,
                                                   u32 index);
struct logicvc_layer *logicvc_layer_get_from_type(struct logicvc_drm *logicvc,
                                                  enum drm_plane_type type);
struct logicvc_layer *logicvc_layer_get_primary(struct logicvc_drm *logicvc);
void logicvc_layers_attach_crtc(struct logicvc_drm *logicvc);
int logicvc_layers_init(struct logicvc_drm *logicvc);

#endif