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5270 | serge | 1 | /* |
2 | * Copyright (C) 2014 Red Hat |
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3 | * Copyright (C) 2014 Intel Corp. |
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4 | * |
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5 | * Permission is hereby granted, free of charge, to any person obtaining a |
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6 | * copy of this software and associated documentation files (the "Software"), |
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7 | * to deal in the Software without restriction, including without limitation |
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8 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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9 | * and/or sell copies of the Software, and to permit persons to whom the |
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10 | * Software is furnished to do so, subject to the following conditions: |
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11 | * |
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12 | * The above copyright notice and this permission notice shall be included in |
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13 | * all copies or substantial portions of the Software. |
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14 | * |
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15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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18 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
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19 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
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20 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
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21 | * OTHER DEALINGS IN THE SOFTWARE. |
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22 | * |
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23 | * Authors: |
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24 | * Rob Clark |
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25 | * Daniel Vetter |
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26 | */ |
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27 | |||
28 | #ifndef DRM_ATOMIC_HELPER_H_ |
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29 | #define DRM_ATOMIC_HELPER_H_ |
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30 | |||
31 | #include |
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32 | |||
6082 | serge | 33 | struct drm_atomic_state; |
34 | |||
35 | int drm_atomic_helper_check_modeset(struct drm_device *dev, |
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36 | struct drm_atomic_state *state); |
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37 | int drm_atomic_helper_check_planes(struct drm_device *dev, |
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38 | struct drm_atomic_state *state); |
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5270 | serge | 39 | int drm_atomic_helper_check(struct drm_device *dev, |
40 | struct drm_atomic_state *state); |
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41 | int drm_atomic_helper_commit(struct drm_device *dev, |
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42 | struct drm_atomic_state *state, |
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43 | bool async); |
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44 | |||
6936 | serge | 45 | bool drm_atomic_helper_framebuffer_changed(struct drm_device *dev, |
46 | struct drm_atomic_state *old_state, |
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47 | struct drm_crtc *crtc); |
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48 | |||
5270 | serge | 49 | void drm_atomic_helper_wait_for_vblanks(struct drm_device *dev, |
50 | struct drm_atomic_state *old_state); |
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51 | |||
6082 | serge | 52 | void |
53 | drm_atomic_helper_update_legacy_modeset_state(struct drm_device *dev, |
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54 | struct drm_atomic_state *old_state); |
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55 | |||
56 | void drm_atomic_helper_commit_modeset_disables(struct drm_device *dev, |
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57 | struct drm_atomic_state *state); |
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58 | void drm_atomic_helper_commit_modeset_enables(struct drm_device *dev, |
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5270 | serge | 59 | struct drm_atomic_state *old_state); |
60 | |||
61 | int drm_atomic_helper_prepare_planes(struct drm_device *dev, |
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62 | struct drm_atomic_state *state); |
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63 | void drm_atomic_helper_commit_planes(struct drm_device *dev, |
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6082 | serge | 64 | struct drm_atomic_state *state, |
65 | bool active_only); |
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5270 | serge | 66 | void drm_atomic_helper_cleanup_planes(struct drm_device *dev, |
67 | struct drm_atomic_state *old_state); |
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6082 | serge | 68 | void drm_atomic_helper_commit_planes_on_crtc(struct drm_crtc_state *old_crtc_state); |
6936 | serge | 69 | void drm_atomic_helper_disable_planes_on_crtc(struct drm_crtc *crtc, |
70 | bool atomic); |
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5270 | serge | 71 | |
72 | void drm_atomic_helper_swap_state(struct drm_device *dev, |
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73 | struct drm_atomic_state *state); |
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74 | |||
75 | /* implementations for legacy interfaces */ |
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76 | int drm_atomic_helper_update_plane(struct drm_plane *plane, |
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77 | struct drm_crtc *crtc, |
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78 | struct drm_framebuffer *fb, |
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79 | int crtc_x, int crtc_y, |
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80 | unsigned int crtc_w, unsigned int crtc_h, |
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81 | uint32_t src_x, uint32_t src_y, |
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82 | uint32_t src_w, uint32_t src_h); |
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83 | int drm_atomic_helper_disable_plane(struct drm_plane *plane); |
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6082 | serge | 84 | int __drm_atomic_helper_disable_plane(struct drm_plane *plane, |
85 | struct drm_plane_state *plane_state); |
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5270 | serge | 86 | int drm_atomic_helper_set_config(struct drm_mode_set *set); |
6082 | serge | 87 | int __drm_atomic_helper_set_config(struct drm_mode_set *set, |
88 | struct drm_atomic_state *state); |
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5270 | serge | 89 | |
6936 | serge | 90 | int drm_atomic_helper_disable_all(struct drm_device *dev, |
91 | struct drm_modeset_acquire_ctx *ctx); |
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92 | struct drm_atomic_state *drm_atomic_helper_suspend(struct drm_device *dev); |
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93 | int drm_atomic_helper_resume(struct drm_device *dev, |
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94 | struct drm_atomic_state *state); |
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95 | |||
5270 | serge | 96 | int drm_atomic_helper_crtc_set_property(struct drm_crtc *crtc, |
97 | struct drm_property *property, |
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98 | uint64_t val); |
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99 | int drm_atomic_helper_plane_set_property(struct drm_plane *plane, |
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100 | struct drm_property *property, |
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101 | uint64_t val); |
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102 | int drm_atomic_helper_connector_set_property(struct drm_connector *connector, |
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103 | struct drm_property *property, |
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104 | uint64_t val); |
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105 | int drm_atomic_helper_page_flip(struct drm_crtc *crtc, |
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106 | struct drm_framebuffer *fb, |
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107 | struct drm_pending_vblank_event *event, |
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108 | uint32_t flags); |
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6082 | serge | 109 | int drm_atomic_helper_connector_dpms(struct drm_connector *connector, |
110 | int mode); |
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5270 | serge | 111 | |
112 | /* default implementations for state handling */ |
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113 | void drm_atomic_helper_crtc_reset(struct drm_crtc *crtc); |
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6082 | serge | 114 | void __drm_atomic_helper_crtc_duplicate_state(struct drm_crtc *crtc, |
115 | struct drm_crtc_state *state); |
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5270 | serge | 116 | struct drm_crtc_state * |
117 | drm_atomic_helper_crtc_duplicate_state(struct drm_crtc *crtc); |
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6082 | serge | 118 | void __drm_atomic_helper_crtc_destroy_state(struct drm_crtc *crtc, |
119 | struct drm_crtc_state *state); |
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5270 | serge | 120 | void drm_atomic_helper_crtc_destroy_state(struct drm_crtc *crtc, |
121 | struct drm_crtc_state *state); |
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122 | |||
123 | void drm_atomic_helper_plane_reset(struct drm_plane *plane); |
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6082 | serge | 124 | void __drm_atomic_helper_plane_duplicate_state(struct drm_plane *plane, |
125 | struct drm_plane_state *state); |
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5270 | serge | 126 | struct drm_plane_state * |
127 | drm_atomic_helper_plane_duplicate_state(struct drm_plane *plane); |
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6082 | serge | 128 | void __drm_atomic_helper_plane_destroy_state(struct drm_plane *plane, |
129 | struct drm_plane_state *state); |
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5270 | serge | 130 | void drm_atomic_helper_plane_destroy_state(struct drm_plane *plane, |
131 | struct drm_plane_state *state); |
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132 | |||
6936 | serge | 133 | void __drm_atomic_helper_connector_reset(struct drm_connector *connector, |
134 | struct drm_connector_state *conn_state); |
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5270 | serge | 135 | void drm_atomic_helper_connector_reset(struct drm_connector *connector); |
6082 | serge | 136 | void |
137 | __drm_atomic_helper_connector_duplicate_state(struct drm_connector *connector, |
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138 | struct drm_connector_state *state); |
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5270 | serge | 139 | struct drm_connector_state * |
140 | drm_atomic_helper_connector_duplicate_state(struct drm_connector *connector); |
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6082 | serge | 141 | struct drm_atomic_state * |
142 | drm_atomic_helper_duplicate_state(struct drm_device *dev, |
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143 | struct drm_modeset_acquire_ctx *ctx); |
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144 | void |
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145 | __drm_atomic_helper_connector_destroy_state(struct drm_connector *connector, |
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146 | struct drm_connector_state *state); |
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5270 | serge | 147 | void drm_atomic_helper_connector_destroy_state(struct drm_connector *connector, |
148 | struct drm_connector_state *state); |
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149 | |||
150 | /** |
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151 | * drm_atomic_crtc_for_each_plane - iterate over planes currently attached to CRTC |
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152 | * @plane: the loop cursor |
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153 | * @crtc: the crtc whose planes are iterated |
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154 | * |
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155 | * This iterates over the current state, useful (for example) when applying |
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156 | * atomic state after it has been checked and swapped. To iterate over the |
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157 | * planes which *will* be attached (for ->atomic_check()) see |
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158 | * drm_crtc_for_each_pending_plane() |
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159 | */ |
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160 | #define drm_atomic_crtc_for_each_plane(plane, crtc) \ |
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161 | drm_for_each_plane_mask(plane, (crtc)->dev, (crtc)->state->plane_mask) |
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162 | |||
163 | /** |
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164 | * drm_crtc_atomic_state_for_each_plane - iterate over attached planes in new state |
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165 | * @plane: the loop cursor |
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166 | * @crtc_state: the incoming crtc-state |
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167 | * |
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168 | * Similar to drm_crtc_for_each_plane(), but iterates the planes that will be |
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169 | * attached if the specified state is applied. Useful during (for example) |
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170 | * ->atomic_check() operations, to validate the incoming state |
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171 | */ |
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172 | #define drm_atomic_crtc_state_for_each_plane(plane, crtc_state) \ |
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173 | drm_for_each_plane_mask(plane, (crtc_state)->state->dev, (crtc_state)->plane_mask) |
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174 | |||
6082 | serge | 175 | /* |
176 | * drm_atomic_plane_disabling - check whether a plane is being disabled |
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177 | * @plane: plane object |
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178 | * @old_state: previous atomic state |
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179 | * |
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180 | * Checks the atomic state of a plane to determine whether it's being disabled |
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181 | * or not. This also WARNs if it detects an invalid state (both CRTC and FB |
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182 | * need to either both be NULL or both be non-NULL). |
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183 | * |
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184 | * RETURNS: |
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185 | * True if the plane is being disabled, false otherwise. |
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186 | */ |
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187 | static inline bool |
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188 | drm_atomic_plane_disabling(struct drm_plane *plane, |
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189 | struct drm_plane_state *old_state) |
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190 | { |
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191 | /* |
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192 | * When disabling a plane, CRTC and FB should always be NULL together. |
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193 | * Anything else should be considered a bug in the atomic core, so we |
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194 | * gently warn about it. |
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195 | */ |
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196 | WARN_ON((plane->state->crtc == NULL && plane->state->fb != NULL) || |
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197 | (plane->state->crtc != NULL && plane->state->fb == NULL)); |
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198 | |||
199 | /* |
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200 | * When using the transitional helpers, old_state may be NULL. If so, |
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201 | * we know nothing about the current state and have to assume that it |
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202 | * might be enabled. |
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203 | * |
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204 | * When using the atomic helpers, old_state won't be NULL. Therefore |
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205 | * this check assumes that either the driver will have reconstructed |
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206 | * the correct state in ->reset() or that the driver will have taken |
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207 | * appropriate measures to disable all planes. |
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208 | */ |
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209 | return (!old_state || old_state->crtc) && !plane->state->crtc; |
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210 | } |
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211 | |||
5270 | serge | 212 | #endif /* DRM_ATOMIC_HELPER_H_ */ |