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Rev	Author	Line No.	Line
1408	serge	1	/*
		2	* Copyright © 2006 Keith Packard
		3	* Copyright © 2007-2008 Dave Airlie
		4	* Copyright © 2007-2008 Intel Corporation
		5	* Jesse Barnes
		6	*
		7	* Permission is hereby granted, free of charge, to any person obtaining a
		8	* copy of this software and associated documentation files (the "Software"),
		9	* to deal in the Software without restriction, including without limitation
		10	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
		11	* and/or sell copies of the Software, and to permit persons to whom the
		12	* Software is furnished to do so, subject to the following conditions:
		13	*
		14	* The above copyright notice and this permission notice shall be included in
		15	* all copies or substantial portions of the Software.
		16	*
		17	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
		18	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
		19	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
		20	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
		21	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
		22	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
		23	* OTHER DEALINGS IN THE SOFTWARE.
		24	*/
		25
		26	/*
		27	* The DRM mode setting helper functions are common code for drivers to use if
		28	* they wish. Drivers are not forced to use this code in their
		29	* implementations but it would be useful if they code they do use at least
		30	* provides a consistent interface and operation to userspace
		31	*/
		32
		33	#ifndef __DRM_CRTC_HELPER_H__
		34	#define __DRM_CRTC_HELPER_H__
		35
1630	serge	36	#include
1408	serge	37	#include
1428	serge	38	#include
1408	serge	39
		40	#include
		41
		42	#include "drm_fb_helper.h"
		43	struct drm_crtc_helper_funcs {
		44	/*
		45	* Control power levels on the CRTC. If the mode passed in is
		46	* unsupported, the provider must use the next lowest power level.
		47	*/
		48	void (dpms)(struct drm_crtc crtc, int mode);
		49	void (prepare)(struct drm_crtc crtc);
		50	void (commit)(struct drm_crtc crtc);
		51
		52	/* Provider can fixup or change mode timings before modeset occurs */
		53	bool (mode_fixup)(struct drm_crtc crtc,
		54	struct drm_display_mode *mode,
		55	struct drm_display_mode *adjusted_mode);
		56	/* Actually set the mode */
		57	int (mode_set)(struct drm_crtc crtc, struct drm_display_mode *mode,
		58	struct drm_display_mode *adjusted_mode, int x, int y,
		59	struct drm_framebuffer *old_fb);
		60
		61	/* Move the crtc on the current fb to the given position optional */
		62	int (mode_set_base)(struct drm_crtc crtc, int x, int y,
		63	struct drm_framebuffer *old_fb);
		64
		65	/* reload the current crtc LUT */
		66	void (load_lut)(struct drm_crtc crtc);
		67	};
		68
		69	struct drm_encoder_helper_funcs {
		70	void (dpms)(struct drm_encoder encoder, int mode);
		71	void (save)(struct drm_encoder encoder);
		72	void (restore)(struct drm_encoder encoder);
		73
		74	bool (mode_fixup)(struct drm_encoder encoder,
		75	struct drm_display_mode *mode,
		76	struct drm_display_mode *adjusted_mode);
		77	void (prepare)(struct drm_encoder encoder);
		78	void (commit)(struct drm_encoder encoder);
		79	void (mode_set)(struct drm_encoder encoder,
		80	struct drm_display_mode *mode,
		81	struct drm_display_mode *adjusted_mode);
		82	struct drm_crtc (get_crtc)(struct drm_encoder *encoder);
		83	/* detect for DAC style encoders */
		84	enum drm_connector_status (detect)(struct drm_encoder encoder,
		85	struct drm_connector *connector);
		86	/* disable encoder when not in use - more explicit than dpms off */
		87	void (disable)(struct drm_encoder encoder);
		88	};
		89
		90	struct drm_connector_helper_funcs {
		91	int (get_modes)(struct drm_connector connector);
		92	int (mode_valid)(struct drm_connector connector,
		93	struct drm_display_mode *mode);
		94	struct drm_encoder (best_encoder)(struct drm_connector *connector);
		95	};
		96
		97	extern int drm_helper_probe_single_connector_modes(struct drm_connector *connector, uint32_t maxX, uint32_t maxY);
		98	extern void drm_helper_disable_unused_functions(struct drm_device *dev);
		99	extern int drm_helper_hotplug_stage_two(struct drm_device *dev);
		100	extern bool drm_helper_initial_config(struct drm_device *dev);
		101	extern int drm_crtc_helper_set_config(struct drm_mode_set *set);
		102	extern bool drm_crtc_helper_set_mode(struct drm_crtc *crtc,
		103	struct drm_display_mode *mode,
		104	int x, int y,
		105	struct drm_framebuffer *old_fb);
		106	extern bool drm_helper_crtc_in_use(struct drm_crtc *crtc);
		107	extern bool drm_helper_encoder_in_use(struct drm_encoder *encoder);
		108
		109	extern void drm_helper_connector_dpms(struct drm_connector *connector, int mode);
		110
		111	extern int drm_helper_mode_fill_fb_struct(struct drm_framebuffer *fb,
		112	struct drm_mode_fb_cmd *mode_cmd);
		113
		114	static inline void drm_crtc_helper_add(struct drm_crtc *crtc,
		115	const struct drm_crtc_helper_funcs *funcs)
		116	{
		117	crtc->helper_private = (void *)funcs;
		118	}
		119
		120	static inline void drm_encoder_helper_add(struct drm_encoder *encoder,
		121	const struct drm_encoder_helper_funcs *funcs)
		122	{
		123	encoder->helper_private = (void *)funcs;
		124	}
		125
		126	static inline int drm_connector_helper_add(struct drm_connector *connector,
		127	const struct drm_connector_helper_funcs *funcs)
		128	{
		129	connector->helper_private = (void *)funcs;
		130	return drm_fb_helper_add_connector(connector);
		131	}
		132
		133	extern int drm_helper_resume_force_mode(struct drm_device *dev);
		134	#endif

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(root)/drivers/include/drm/drm_crtc_helper.h – Rev 1630