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  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_H_
  29. #define DRM_ATOMIC_H_
  30.  
  31. #include <drm/drm_crtc.h>
  32.  
  33. struct drm_atomic_state * __must_check
  34. drm_atomic_state_alloc(struct drm_device *dev);
  35. void drm_atomic_state_clear(struct drm_atomic_state *state);
  36. void drm_atomic_state_free(struct drm_atomic_state *state);
  37.  
  38. int  __must_check
  39. drm_atomic_state_init(struct drm_device *dev, struct drm_atomic_state *state);
  40. void drm_atomic_state_default_clear(struct drm_atomic_state *state);
  41. void drm_atomic_state_default_release(struct drm_atomic_state *state);
  42.  
  43. struct drm_crtc_state * __must_check
  44. drm_atomic_get_crtc_state(struct drm_atomic_state *state,
  45.                           struct drm_crtc *crtc);
  46. int drm_atomic_crtc_set_property(struct drm_crtc *crtc,
  47.                 struct drm_crtc_state *state, struct drm_property *property,
  48.                 uint64_t val);
  49. struct drm_plane_state * __must_check
  50. drm_atomic_get_plane_state(struct drm_atomic_state *state,
  51.                            struct drm_plane *plane);
  52. int drm_atomic_plane_set_property(struct drm_plane *plane,
  53.                 struct drm_plane_state *state, struct drm_property *property,
  54.                 uint64_t val);
  55. struct drm_connector_state * __must_check
  56. drm_atomic_get_connector_state(struct drm_atomic_state *state,
  57.                                struct drm_connector *connector);
  58. int drm_atomic_connector_set_property(struct drm_connector *connector,
  59.                 struct drm_connector_state *state, struct drm_property *property,
  60.                 uint64_t val);
  61.  
  62. /**
  63.  * drm_atomic_get_existing_crtc_state - get crtc state, if it exists
  64.  * @state: global atomic state object
  65.  * @crtc: crtc to grab
  66.  *
  67.  * This function returns the crtc state for the given crtc, or NULL
  68.  * if the crtc is not part of the global atomic state.
  69.  */
  70. static inline struct drm_crtc_state *
  71. drm_atomic_get_existing_crtc_state(struct drm_atomic_state *state,
  72.                                    struct drm_crtc *crtc)
  73. {
  74.         return state->crtc_states[drm_crtc_index(crtc)];
  75. }
  76.  
  77. /**
  78.  * drm_atomic_get_existing_plane_state - get plane state, if it exists
  79.  * @state: global atomic state object
  80.  * @plane: plane to grab
  81.  *
  82.  * This function returns the plane state for the given plane, or NULL
  83.  * if the plane is not part of the global atomic state.
  84.  */
  85. static inline struct drm_plane_state *
  86. drm_atomic_get_existing_plane_state(struct drm_atomic_state *state,
  87.                                     struct drm_plane *plane)
  88. {
  89.         return state->plane_states[drm_plane_index(plane)];
  90. }
  91.  
  92. /**
  93.  * drm_atomic_get_existing_connector_state - get connector state, if it exists
  94.  * @state: global atomic state object
  95.  * @connector: connector to grab
  96.  *
  97.  * This function returns the connector state for the given connector,
  98.  * or NULL if the connector is not part of the global atomic state.
  99.  */
  100. static inline struct drm_connector_state *
  101. drm_atomic_get_existing_connector_state(struct drm_atomic_state *state,
  102.                                         struct drm_connector *connector)
  103. {
  104.         int index = drm_connector_index(connector);
  105.  
  106.         if (index >= state->num_connector)
  107.                 return NULL;
  108.  
  109.         return state->connector_states[index];
  110. }
  111.  
  112. int __must_check
  113. drm_atomic_set_mode_for_crtc(struct drm_crtc_state *state,
  114.                              struct drm_display_mode *mode);
  115. int __must_check
  116. drm_atomic_set_mode_prop_for_crtc(struct drm_crtc_state *state,
  117.                                   struct drm_property_blob *blob);
  118. int __must_check
  119. drm_atomic_set_crtc_for_plane(struct drm_plane_state *plane_state,
  120.                               struct drm_crtc *crtc);
  121. void drm_atomic_set_fb_for_plane(struct drm_plane_state *plane_state,
  122.                                  struct drm_framebuffer *fb);
  123. int __must_check
  124. drm_atomic_set_crtc_for_connector(struct drm_connector_state *conn_state,
  125.                                   struct drm_crtc *crtc);
  126. int __must_check
  127. drm_atomic_add_affected_connectors(struct drm_atomic_state *state,
  128.                                    struct drm_crtc *crtc);
  129. int __must_check
  130. drm_atomic_add_affected_planes(struct drm_atomic_state *state,
  131.                                struct drm_crtc *crtc);
  132.  
  133. int
  134. drm_atomic_connectors_for_crtc(struct drm_atomic_state *state,
  135.                                struct drm_crtc *crtc);
  136.  
  137. void drm_atomic_legacy_backoff(struct drm_atomic_state *state);
  138.  
  139. void
  140. drm_atomic_clean_old_fb(struct drm_device *dev, unsigned plane_mask, int ret);
  141.  
  142. int __must_check drm_atomic_check_only(struct drm_atomic_state *state);
  143. int __must_check drm_atomic_commit(struct drm_atomic_state *state);
  144. int __must_check drm_atomic_async_commit(struct drm_atomic_state *state);
  145.  
  146. #define for_each_connector_in_state(state, connector, connector_state, __i) \
  147.         for ((__i) = 0;                                                 \
  148.              (__i) < (state)->num_connector &&                          \
  149.              ((connector) = (state)->connectors[__i],                   \
  150.              (connector_state) = (state)->connector_states[__i], 1);    \
  151.              (__i)++)                                                   \
  152.                 if (connector)
  153.  
  154. #define for_each_crtc_in_state(state, crtc, crtc_state, __i)    \
  155.         for ((__i) = 0;                                         \
  156.              (__i) < (state)->dev->mode_config.num_crtc &&      \
  157.              ((crtc) = (state)->crtcs[__i],                     \
  158.              (crtc_state) = (state)->crtc_states[__i], 1);      \
  159.              (__i)++)                                           \
  160.                 if (crtc_state)
  161.  
  162. #define for_each_plane_in_state(state, plane, plane_state, __i)         \
  163.         for ((__i) = 0;                                                 \
  164.              (__i) < (state)->dev->mode_config.num_total_plane &&       \
  165.              ((plane) = (state)->planes[__i],                           \
  166.              (plane_state) = (state)->plane_states[__i], 1);            \
  167.              (__i)++)                                                   \
  168.                 if (plane_state)
  169. static inline bool
  170. drm_atomic_crtc_needs_modeset(struct drm_crtc_state *state)
  171. {
  172.         return state->mode_changed || state->active_changed ||
  173.                state->connectors_changed;
  174. }
  175.  
  176.  
  177. #endif /* DRM_ATOMIC_H_ */
  178.