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