/* * Copyright (C) 2014 Red Hat * Copyright (C) 2014 Intel Corp. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Authors: * Rob Clark * Daniel Vetter */ #ifndef DRM_ATOMIC_HELPER_H_ #define DRM_ATOMIC_HELPER_H_ #include int drm_atomic_helper_check_modeset(struct drm_device *dev, struct drm_atomic_state *state); int drm_atomic_helper_check_planes(struct drm_device *dev, struct drm_atomic_state *state); int drm_atomic_helper_check(struct drm_device *dev, struct drm_atomic_state *state); int drm_atomic_helper_commit(struct drm_device *dev, struct drm_atomic_state *state, bool async); void drm_atomic_helper_wait_for_vblanks(struct drm_device *dev, struct drm_atomic_state *old_state); void drm_atomic_helper_update_legacy_modeset_state(struct drm_device *dev, struct drm_atomic_state *old_state); void drm_atomic_helper_commit_modeset_disables(struct drm_device *dev, struct drm_atomic_state *state); void drm_atomic_helper_commit_modeset_enables(struct drm_device *dev, struct drm_atomic_state *old_state); int drm_atomic_helper_prepare_planes(struct drm_device *dev, struct drm_atomic_state *state); void drm_atomic_helper_commit_planes(struct drm_device *dev, struct drm_atomic_state *state); void drm_atomic_helper_cleanup_planes(struct drm_device *dev, struct drm_atomic_state *old_state); void drm_atomic_helper_commit_planes_on_crtc(struct drm_crtc_state *old_crtc_state); void drm_atomic_helper_swap_state(struct drm_device *dev, struct drm_atomic_state *state); /* implementations for legacy interfaces */ int drm_atomic_helper_update_plane(struct drm_plane *plane, struct drm_crtc *crtc, struct drm_framebuffer *fb, int crtc_x, int crtc_y, unsigned int crtc_w, unsigned int crtc_h, uint32_t src_x, uint32_t src_y, uint32_t src_w, uint32_t src_h); int drm_atomic_helper_disable_plane(struct drm_plane *plane); int drm_atomic_helper_set_config(struct drm_mode_set *set); int drm_atomic_helper_crtc_set_property(struct drm_crtc *crtc, struct drm_property *property, uint64_t val); int drm_atomic_helper_plane_set_property(struct drm_plane *plane, struct drm_property *property, uint64_t val); int drm_atomic_helper_connector_set_property(struct drm_connector *connector, struct drm_property *property, uint64_t val); int drm_atomic_helper_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb, struct drm_pending_vblank_event *event, uint32_t flags); void drm_atomic_helper_connector_dpms(struct drm_connector *connector, int mode); /* default implementations for state handling */ void drm_atomic_helper_crtc_reset(struct drm_crtc *crtc); void __drm_atomic_helper_crtc_duplicate_state(struct drm_crtc *crtc, struct drm_crtc_state *state); struct drm_crtc_state * drm_atomic_helper_crtc_duplicate_state(struct drm_crtc *crtc); void __drm_atomic_helper_crtc_destroy_state(struct drm_crtc *crtc, struct drm_crtc_state *state); void drm_atomic_helper_crtc_destroy_state(struct drm_crtc *crtc, struct drm_crtc_state *state); void drm_atomic_helper_plane_reset(struct drm_plane *plane); void __drm_atomic_helper_plane_duplicate_state(struct drm_plane *plane, struct drm_plane_state *state); struct drm_plane_state * drm_atomic_helper_plane_duplicate_state(struct drm_plane *plane); void __drm_atomic_helper_plane_destroy_state(struct drm_plane *plane, struct drm_plane_state *state); void drm_atomic_helper_plane_destroy_state(struct drm_plane *plane, struct drm_plane_state *state); void drm_atomic_helper_connector_reset(struct drm_connector *connector); void __drm_atomic_helper_connector_duplicate_state(struct drm_connector *connector, struct drm_connector_state *state); struct drm_connector_state * drm_atomic_helper_connector_duplicate_state(struct drm_connector *connector); void __drm_atomic_helper_connector_destroy_state(struct drm_connector *connector, struct drm_connector_state *state); void drm_atomic_helper_connector_destroy_state(struct drm_connector *connector, struct drm_connector_state *state); /** * drm_atomic_crtc_for_each_plane - iterate over planes currently attached to CRTC * @plane: the loop cursor * @crtc: the crtc whose planes are iterated * * This iterates over the current state, useful (for example) when applying * atomic state after it has been checked and swapped. To iterate over the * planes which *will* be attached (for ->atomic_check()) see * drm_crtc_for_each_pending_plane() */ #define drm_atomic_crtc_for_each_plane(plane, crtc) \ drm_for_each_plane_mask(plane, (crtc)->dev, (crtc)->state->plane_mask) /** * drm_crtc_atomic_state_for_each_plane - iterate over attached planes in new state * @plane: the loop cursor * @crtc_state: the incoming crtc-state * * Similar to drm_crtc_for_each_plane(), but iterates the planes that will be * attached if the specified state is applied. Useful during (for example) * ->atomic_check() operations, to validate the incoming state */ #define drm_atomic_crtc_state_for_each_plane(plane, crtc_state) \ drm_for_each_plane_mask(plane, (crtc_state)->state->dev, (crtc_state)->plane_mask) /* * drm_atomic_plane_disabling - check whether a plane is being disabled * @plane: plane object * @old_state: previous atomic state * * Checks the atomic state of a plane to determine whether it's being disabled * or not. This also WARNs if it detects an invalid state (both CRTC and FB * need to either both be NULL or both be non-NULL). * * RETURNS: * True if the plane is being disabled, false otherwise. */ static inline bool drm_atomic_plane_disabling(struct drm_plane *plane, struct drm_plane_state *old_state) { /* * When disabling a plane, CRTC and FB should always be NULL together. * Anything else should be considered a bug in the atomic core, so we * gently warn about it. */ WARN_ON((plane->state->crtc == NULL && plane->state->fb != NULL) || (plane->state->crtc != NULL && plane->state->fb == NULL)); /* * When using the transitional helpers, old_state may be NULL. If so, * we know nothing about the current state and have to assume that it * might be enabled. * * When using the atomic helpers, old_state won't be NULL. Therefore * this check assumes that either the driver will have reconstructed * the correct state in ->reset() or that the driver will have taken * appropriate measures to disable all planes. */ return (!old_state || old_state->crtc) && !plane->state->crtc; } #endif /* DRM_ATOMIC_HELPER_H_ */