WebSVN – Kolibri OS – Blame – /drivers/include/drm/drm_atomic_helper.h

Rev	Author	Line No.	Line
5270	serge	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
		25	* Daniel Vetter
		26	*/
		27
		28	#ifndef DRM_ATOMIC_HELPER_H_
		29	#define DRM_ATOMIC_HELPER_H_
		30
		31	#include
		32
6082	serge	33	struct drm_atomic_state;
		34
		35	int drm_atomic_helper_check_modeset(struct drm_device *dev,
		36	struct drm_atomic_state *state);
		37	int drm_atomic_helper_check_planes(struct drm_device *dev,
		38	struct drm_atomic_state *state);
5270	serge	39	int drm_atomic_helper_check(struct drm_device *dev,
		40	struct drm_atomic_state *state);
		41	int drm_atomic_helper_commit(struct drm_device *dev,
		42	struct drm_atomic_state *state,
		43	bool async);
		44
		45	void drm_atomic_helper_wait_for_vblanks(struct drm_device *dev,
		46	struct drm_atomic_state *old_state);
		47
6082	serge	48	void
		49	drm_atomic_helper_update_legacy_modeset_state(struct drm_device *dev,
		50	struct drm_atomic_state *old_state);
		51
		52	void drm_atomic_helper_commit_modeset_disables(struct drm_device *dev,
		53	struct drm_atomic_state *state);
		54	void drm_atomic_helper_commit_modeset_enables(struct drm_device *dev,
5270	serge	55	struct drm_atomic_state *old_state);
		56
		57	int drm_atomic_helper_prepare_planes(struct drm_device *dev,
		58	struct drm_atomic_state *state);
		59	void drm_atomic_helper_commit_planes(struct drm_device *dev,
6082	serge	60	struct drm_atomic_state *state,
		61	bool active_only);
5270	serge	62	void drm_atomic_helper_cleanup_planes(struct drm_device *dev,
		63	struct drm_atomic_state *old_state);
6082	serge	64	void drm_atomic_helper_commit_planes_on_crtc(struct drm_crtc_state *old_crtc_state);
5270	serge	65
		66	void drm_atomic_helper_swap_state(struct drm_device *dev,
		67	struct drm_atomic_state *state);
		68
		69	/* implementations for legacy interfaces */
		70	int drm_atomic_helper_update_plane(struct drm_plane *plane,
		71	struct drm_crtc *crtc,
		72	struct drm_framebuffer *fb,
		73	int crtc_x, int crtc_y,
		74	unsigned int crtc_w, unsigned int crtc_h,
		75	uint32_t src_x, uint32_t src_y,
		76	uint32_t src_w, uint32_t src_h);
		77	int drm_atomic_helper_disable_plane(struct drm_plane *plane);
6082	serge	78	int __drm_atomic_helper_disable_plane(struct drm_plane *plane,
		79	struct drm_plane_state *plane_state);
5270	serge	80	int drm_atomic_helper_set_config(struct drm_mode_set *set);
6082	serge	81	int __drm_atomic_helper_set_config(struct drm_mode_set *set,
		82	struct drm_atomic_state *state);
5270	serge	83
		84	int drm_atomic_helper_crtc_set_property(struct drm_crtc *crtc,
		85	struct drm_property *property,
		86	uint64_t val);
		87	int drm_atomic_helper_plane_set_property(struct drm_plane *plane,
		88	struct drm_property *property,
		89	uint64_t val);
		90	int drm_atomic_helper_connector_set_property(struct drm_connector *connector,
		91	struct drm_property *property,
		92	uint64_t val);
		93	int drm_atomic_helper_page_flip(struct drm_crtc *crtc,
		94	struct drm_framebuffer *fb,
		95	struct drm_pending_vblank_event *event,
		96	uint32_t flags);
6082	serge	97	int drm_atomic_helper_connector_dpms(struct drm_connector *connector,
		98	int mode);
5270	serge	99
		100	/* default implementations for state handling */
		101	void drm_atomic_helper_crtc_reset(struct drm_crtc *crtc);
6082	serge	102	void __drm_atomic_helper_crtc_duplicate_state(struct drm_crtc *crtc,
		103	struct drm_crtc_state *state);
5270	serge	104	struct drm_crtc_state *
		105	drm_atomic_helper_crtc_duplicate_state(struct drm_crtc *crtc);
6082	serge	106	void __drm_atomic_helper_crtc_destroy_state(struct drm_crtc *crtc,
		107	struct drm_crtc_state *state);
5270	serge	108	void drm_atomic_helper_crtc_destroy_state(struct drm_crtc *crtc,
		109	struct drm_crtc_state *state);
		110
		111	void drm_atomic_helper_plane_reset(struct drm_plane *plane);
6082	serge	112	void __drm_atomic_helper_plane_duplicate_state(struct drm_plane *plane,
		113	struct drm_plane_state *state);
5270	serge	114	struct drm_plane_state *
		115	drm_atomic_helper_plane_duplicate_state(struct drm_plane *plane);
6082	serge	116	void __drm_atomic_helper_plane_destroy_state(struct drm_plane *plane,
		117	struct drm_plane_state *state);
5270	serge	118	void drm_atomic_helper_plane_destroy_state(struct drm_plane *plane,
		119	struct drm_plane_state *state);
		120
		121	void drm_atomic_helper_connector_reset(struct drm_connector *connector);
6082	serge	122	void
		123	__drm_atomic_helper_connector_duplicate_state(struct drm_connector *connector,
		124	struct drm_connector_state *state);
5270	serge	125	struct drm_connector_state *
		126	drm_atomic_helper_connector_duplicate_state(struct drm_connector *connector);
6082	serge	127	struct drm_atomic_state *
		128	drm_atomic_helper_duplicate_state(struct drm_device *dev,
		129	struct drm_modeset_acquire_ctx *ctx);
		130	void
		131	__drm_atomic_helper_connector_destroy_state(struct drm_connector *connector,
		132	struct drm_connector_state *state);
5270	serge	133	void drm_atomic_helper_connector_destroy_state(struct drm_connector *connector,
		134	struct drm_connector_state *state);
		135
		136	/**
		137	* drm_atomic_crtc_for_each_plane - iterate over planes currently attached to CRTC
		138	* @plane: the loop cursor
		139	* @crtc: the crtc whose planes are iterated
		140	*
		141	* This iterates over the current state, useful (for example) when applying
		142	* atomic state after it has been checked and swapped. To iterate over the
		143	* planes which will be attached (for ->atomic_check()) see
		144	* drm_crtc_for_each_pending_plane()
		145	*/
		146	#define drm_atomic_crtc_for_each_plane(plane, crtc) \
		147	drm_for_each_plane_mask(plane, (crtc)->dev, (crtc)->state->plane_mask)
		148
		149	/**
		150	* drm_crtc_atomic_state_for_each_plane - iterate over attached planes in new state
		151	* @plane: the loop cursor
		152	* @crtc_state: the incoming crtc-state
		153	*
		154	* Similar to drm_crtc_for_each_plane(), but iterates the planes that will be
		155	* attached if the specified state is applied. Useful during (for example)
		156	* ->atomic_check() operations, to validate the incoming state
		157	*/
		158	#define drm_atomic_crtc_state_for_each_plane(plane, crtc_state) \
		159	drm_for_each_plane_mask(plane, (crtc_state)->state->dev, (crtc_state)->plane_mask)
		160
6082	serge	161	/*
		162	* drm_atomic_plane_disabling - check whether a plane is being disabled
		163	* @plane: plane object
		164	* @old_state: previous atomic state
		165	*
		166	* Checks the atomic state of a plane to determine whether it's being disabled
		167	* or not. This also WARNs if it detects an invalid state (both CRTC and FB
		168	* need to either both be NULL or both be non-NULL).
		169	*
		170	* RETURNS:
		171	* True if the plane is being disabled, false otherwise.
		172	*/
		173	static inline bool
		174	drm_atomic_plane_disabling(struct drm_plane *plane,
		175	struct drm_plane_state *old_state)
		176	{
		177	/*
		178	* When disabling a plane, CRTC and FB should always be NULL together.
		179	* Anything else should be considered a bug in the atomic core, so we
		180	* gently warn about it.
		181	*/
		182	WARN_ON((plane->state->crtc == NULL && plane->state->fb != NULL) \|\|
		183	(plane->state->crtc != NULL && plane->state->fb == NULL));
		184
		185	/*
		186	* When using the transitional helpers, old_state may be NULL. If so,
		187	* we know nothing about the current state and have to assume that it
		188	* might be enabled.
		189	*
		190	* When using the atomic helpers, old_state won't be NULL. Therefore
		191	* this check assumes that either the driver will have reconstructed
		192	* the correct state in ->reset() or that the driver will have taken
		193	* appropriate measures to disable all planes.
		194	*/
		195	return (!old_state \|\| old_state->crtc) && !plane->state->crtc;
		196	}
		197
5270	serge	198	#endif /* DRM_ATOMIC_HELPER_H_ */

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(root)/drivers/include/drm/drm_atomic_helper.h – Rev 6082