/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright 2021 Microsoft
 */

#ifndef _HYPERV_DRM_H_
#define _HYPERV_DRM_H_

#define VMBUS_MAX_PACKET_SIZE 0x4000

struct hyperv_drm_device {
        /* drm */
        struct drm_device dev;
        struct drm_plane plane;
        struct drm_crtc crtc;
        struct drm_encoder encoder;
        struct drm_connector connector;

        /* mode */
        u32 screen_width_max;
        u32 screen_height_max;
        u32 preferred_width;
        u32 preferred_height;
        u32 screen_depth;

        /* hw */
        struct resource *mem;
        void __iomem *vram;
        unsigned long fb_base;
        unsigned long fb_size;
        struct completion wait;
        u32 synthvid_version;
        u32 mmio_megabytes;
        bool dirt_needed;

        u8 init_buf[VMBUS_MAX_PACKET_SIZE];
        u8 recv_buf[VMBUS_MAX_PACKET_SIZE];

        struct hv_device *hdev;
};

#define to_hv(_dev) container_of(_dev, struct hyperv_drm_device, dev)

/* hyperv_drm_modeset */
int hyperv_mode_config_init(struct hyperv_drm_device *hv);

/* hyperv_drm_proto */
int hyperv_update_vram_location(struct hv_device *hdev, phys_addr_t vram_pp);
int hyperv_update_situation(struct hv_device *hdev, u8 active, u32 bpp,
                            u32 w, u32 h, u32 pitch);
int hyperv_hide_hw_ptr(struct hv_device *hdev);
int hyperv_update_dirt(struct hv_device *hdev, struct drm_rect *rect);
int hyperv_connect_vsp(struct hv_device *hdev);

#endif