drm_simple_kms_helper.h

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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2016 Noralf Trønnes
 */
 
/*
 * Simple KMS helpers are deprected in favor of regular atomic helpers. Do not
 * use the min new code.
 */
 
#ifndef __LINUX_DRM_SIMPLE_KMS_HELPER_H
#define __LINUX_DRM_SIMPLE_KMS_HELPER_H
 
#include <drm/drm_crtc.h>
#include <drm/drm_encoder.h>
#include <drm/drm_plane.h>
 
struct drm_simple_display_pipe;
 
struct drm_simple_display_pipe_funcs {
    enum drm_mode_status (*mode_valid)(struct drm_simple_display_pipe *pipe,
                       const struct drm_display_mode *mode);
    void (*enable)(struct drm_simple_display_pipe *pipe,
               struct drm_crtc_state *crtc_state,
               struct drm_plane_state *plane_state);
    void (*disable)(struct drm_simple_display_pipe *pipe);
    int (*check)(struct drm_simple_display_pipe *pipe,
             struct drm_plane_state *plane_state,
             struct drm_crtc_state *crtc_state);
    void (*update)(struct drm_simple_display_pipe *pipe,
               struct drm_plane_state *old_plane_state);
    int (*prepare_fb)(struct drm_simple_display_pipe *pipe,
              struct drm_plane_state *plane_state);
    void (*cleanup_fb)(struct drm_simple_display_pipe *pipe,
               struct drm_plane_state *plane_state);
    int (*begin_fb_access)(struct drm_simple_display_pipe *pipe,
                   struct drm_plane_state *new_plane_state);
    void (*end_fb_access)(struct drm_simple_display_pipe *pipe,
                  struct drm_plane_state *plane_state);
    int (*enable_vblank)(struct drm_simple_display_pipe *pipe);
    void (*disable_vblank)(struct drm_simple_display_pipe *pipe);
    void (*reset_crtc)(struct drm_simple_display_pipe *pipe);
    struct drm_crtc_state * (*duplicate_crtc_state)(struct drm_simple_display_pipe *pipe);
    void (*destroy_crtc_state)(struct drm_simple_display_pipe *pipe,
                   struct drm_crtc_state *crtc_state);
    void (*reset_plane)(struct drm_simple_display_pipe *pipe);
    struct drm_plane_state * (*duplicate_plane_state)(struct drm_simple_display_pipe *pipe);
    void (*destroy_plane_state)(struct drm_simple_display_pipe *pipe,
                    struct drm_plane_state *plane_state);
};
 
struct drm_simple_display_pipe {
    struct drm_crtc crtc;
    struct drm_plane plane;
    struct drm_encoder encoder;
    struct drm_connector *connector;
 
    const struct drm_simple_display_pipe_funcs *funcs;
};
 
int drm_simple_display_pipe_attach_bridge(struct drm_simple_display_pipe *pipe,
                      struct drm_bridge *bridge);
 
int drm_simple_display_pipe_init(struct drm_device *dev,
            struct drm_simple_display_pipe *pipe,
            const struct drm_simple_display_pipe_funcs *funcs,
            const uint32_t *formats, unsigned int format_count,
            const uint64_t *format_modifiers,
            struct drm_connector *connector);
 
int drm_simple_encoder_init(struct drm_device *dev,
                struct drm_encoder *encoder,
                int encoder_type);
 
void *__drmm_simple_encoder_alloc(struct drm_device *dev, size_t size,
                  size_t offset, int encoder_type);
 
#define drmm_simple_encoder_alloc(dev, type, member, encoder_type) \
    ((type *)__drmm_simple_encoder_alloc(dev, sizeof(type), \
                         offsetof(type, member), \
                         encoder_type))
 
#endif /* __LINUX_DRM_SIMPLE_KMS_HELPER_H */