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 int __must_check drm_atomic_check_only(struct drm_atomic_state *state); 140 int __must_check drm_atomic_commit(struct drm_atomic_state *state); 141 int __must_check drm_atomic_async_commit(struct drm_atomic_state *state); 142 143 #define for_each_connector_in_state(state, connector, connector_state, __i) \ 144 for ((__i) = 0; \ 145 (__i) < (state)->num_connector && \ 146 ((connector) = (state)->connectors[__i], \ 147 (connector_state) = (state)->connector_states[__i], 1); \ 148 (__i)++) \ 149 if (connector) 150 151 #define for_each_crtc_in_state(state, crtc, crtc_state, __i) \ 152 for ((__i) = 0; \ 153 (__i) < (state)->dev->mode_config.num_crtc && \ 154 ((crtc) = (state)->crtcs[__i], \ 155 (crtc_state) = (state)->crtc_states[__i], 1); \ 156 (__i)++) \ 157 if (crtc_state) 158 159 #define for_each_plane_in_state(state, plane, plane_state, __i) \ 160 for ((__i) = 0; \ 161 (__i) < (state)->dev->mode_config.num_total_plane && \ 162 ((plane) = (state)->planes[__i], \ 163 (plane_state) = (state)->plane_states[__i], 1); \ 164 (__i)++) \ 165 if (plane_state) 166 static inline bool 167 drm_atomic_crtc_needs_modeset(struct drm_crtc_state *state) 168 { 169 return state->mode_changed || state->active_changed || 170 state->connectors_changed; 171 } 172 173 174 #endif /* DRM_ATOMIC_H_ */ 175