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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/include/drm/drm_crtc_helper.h
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/*

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 * Copyright © 2006 Keith Packard

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 * Copyright © 2007-2008 Dave Airlie

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 * Copyright © 2007-2008 Intel Corporation

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 *   Jesse Barnes <[email protected]>

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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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/*

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 * The DRM mode setting helper functions are common code for drivers to use if

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 * they wish.  Drivers are not forced to use this code in their

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 * implementations but it would be useful if they code they do use at least

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 * provides a consistent interface and operation to userspace

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 */

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#ifndef __DRM_CRTC_HELPER_H__

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#define __DRM_CRTC_HELPER_H__

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#include <linux/types.h>

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struct drm_atomic_state;

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struct drm_connector;

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struct drm_crtc;

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struct drm_device;

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struct drm_display_mode;

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struct drm_encoder;

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struct drm_framebuffer;

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struct drm_mode_set;

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struct drm_modeset_acquire_ctx;

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void drm_helper_disable_unused_functions(struct drm_device *dev);

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int drm_crtc_helper_set_config(struct drm_mode_set *set,

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			       struct drm_modeset_acquire_ctx *ctx);

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bool drm_crtc_helper_set_mode(struct drm_crtc *crtc,

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			      struct drm_display_mode *mode,

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			      int x, int y,

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			      struct drm_framebuffer *old_fb);

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int drm_crtc_helper_atomic_check(struct drm_crtc *crtc,

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				 struct drm_atomic_state *state);

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bool drm_helper_crtc_in_use(struct drm_crtc *crtc);

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bool drm_helper_encoder_in_use(struct drm_encoder *encoder);

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int drm_helper_connector_dpms(struct drm_connector *connector, int mode);

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void drm_helper_resume_force_mode(struct drm_device *dev);

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int drm_helper_force_disable_all(struct drm_device *dev);

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#endif

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