include/drm/drm_atomic_helper.h

   1 /*
   2  * Copyright (C) 2014 Red Hat
   3  * Copyright (C) 2014 Intel Corp.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be included in
  13  * all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  19  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  20  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  21  * OTHER DEALINGS IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  * Rob Clark <robdclark@gmail.com>
  25  * Daniel Vetter <daniel.vetter@ffwll.ch>
  26  */
  27
  28 #ifndef DRM_ATOMIC_HELPER_H_
  29 #define DRM_ATOMIC_HELPER_H_
  30
  31 #include <drm/drm_crtc.h>
  32
  33 int drm_atomic_helper_check(struct drm_device *dev,
  34                             struct drm_atomic_state *state);
  35 int drm_atomic_helper_commit(struct drm_device *dev,
  36                              struct drm_atomic_state *state,
  37                              bool async);
  38
  39 void drm_atomic_helper_wait_for_vblanks(struct drm_device *dev,
  40                                         struct drm_atomic_state *old_state);
  41
  42 void drm_atomic_helper_commit_pre_planes(struct drm_device *dev,
  43                                          struct drm_atomic_state *state);
  44 void drm_atomic_helper_commit_post_planes(struct drm_device *dev,
  45                                           struct drm_atomic_state *old_state);
  46
  47 int drm_atomic_helper_prepare_planes(struct drm_device *dev,
  48                                      struct drm_atomic_state *state);
  49 void drm_atomic_helper_commit_planes(struct drm_device *dev,
  50                                      struct drm_atomic_state *state);
  51 void drm_atomic_helper_cleanup_planes(struct drm_device *dev,
  52                                       struct drm_atomic_state *old_state);
  53
  54 void drm_atomic_helper_swap_state(struct drm_device *dev,
  55                                   struct drm_atomic_state *state);
  56
  57 /* implementations for legacy interfaces */
  58 int drm_atomic_helper_update_plane(struct drm_plane *plane,
  59                                    struct drm_crtc *crtc,
  60                                    struct drm_framebuffer *fb,
  61                                    int crtc_x, int crtc_y,
  62                                    unsigned int crtc_w, unsigned int crtc_h,
  63                                    uint32_t src_x, uint32_t src_y,
  64                                    uint32_t src_w, uint32_t src_h);
  65 int drm_atomic_helper_disable_plane(struct drm_plane *plane);
  66 int drm_atomic_helper_set_config(struct drm_mode_set *set);
  67
  68 int drm_atomic_helper_crtc_set_property(struct drm_crtc *crtc,
  69                                         struct drm_property *property,
  70                                         uint64_t val);
  71 int drm_atomic_helper_plane_set_property(struct drm_plane *plane,
  72                                         struct drm_property *property,
  73                                         uint64_t val);
  74 int drm_atomic_helper_connector_set_property(struct drm_connector *connector,
  75                                         struct drm_property *property,
  76                                         uint64_t val);
  77 int drm_atomic_helper_page_flip(struct drm_crtc *crtc,
  78                                 struct drm_framebuffer *fb,
  79                                 struct drm_pending_vblank_event *event,
  80                                 uint32_t flags);
  81
  82 /* default implementations for state handling */
  83 void drm_atomic_helper_crtc_reset(struct drm_crtc *crtc);
  84 struct drm_crtc_state *
  85 drm_atomic_helper_crtc_duplicate_state(struct drm_crtc *crtc);
  86 void drm_atomic_helper_crtc_destroy_state(struct drm_crtc *crtc,
  87                                           struct drm_crtc_state *state);
  88
  89 void drm_atomic_helper_plane_reset(struct drm_plane *plane);
  90 struct drm_plane_state *
  91 drm_atomic_helper_plane_duplicate_state(struct drm_plane *plane);
  92 void drm_atomic_helper_plane_destroy_state(struct drm_plane *plane,
  93                                           struct drm_plane_state *state);
  94
  95 void drm_atomic_helper_connector_reset(struct drm_connector *connector);
  96 struct drm_connector_state *
  97 drm_atomic_helper_connector_duplicate_state(struct drm_connector *connector);
  98 void drm_atomic_helper_connector_destroy_state(struct drm_connector *connector,
  99                                           struct drm_connector_state *state);
 100
 101 /**
 102  * drm_atomic_crtc_for_each_plane - iterate over planes currently attached to CRTC
 103  * @plane: the loop cursor
 104  * @crtc:  the crtc whose planes are iterated
 105  *
 106  * This iterates over the current state, useful (for example) when applying
 107  * atomic state after it has been checked and swapped.  To iterate over the
 108  * planes which *will* be attached (for ->atomic_check()) see
 109  * drm_crtc_for_each_pending_plane()
 110  */
 111 #define drm_atomic_crtc_for_each_plane(plane, crtc) \
 112         drm_for_each_plane_mask(plane, (crtc)->dev, (crtc)->state->plane_mask)
 113
 114 /**
 115  * drm_crtc_atomic_state_for_each_plane - iterate over attached planes in new state
 116  * @plane: the loop cursor
 117  * @crtc_state: the incoming crtc-state
 118  *
 119  * Similar to drm_crtc_for_each_plane(), but iterates the planes that will be
 120  * attached if the specified state is applied.  Useful during (for example)
 121  * ->atomic_check() operations, to validate the incoming state
 122  */
 123 #define drm_atomic_crtc_state_for_each_plane(plane, crtc_state) \
 124         drm_for_each_plane_mask(plane, (crtc_state)->state->dev, (crtc_state)->plane_mask)
 125
 126 #endif /* DRM_ATOMIC_HELPER_H_ */