include/drm/drm_crtc_helper.h

0001 /*
0002  * Copyright © 2006 Keith Packard
0003  * Copyright © 2007-2008 Dave Airlie
0004  * Copyright © 2007-2008 Intel Corporation
0005  *   Jesse Barnes <jesse.barnes@intel.com>
0006  *
0007  * Permission is hereby granted, free of charge, to any person obtaining a
0008  * copy of this software and associated documentation files (the "Software"),
0009  * to deal in the Software without restriction, including without limitation
0010  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
0011  * and/or sell copies of the Software, and to permit persons to whom the
0012  * Software is furnished to do so, subject to the following conditions:
0013  *
0014  * The above copyright notice and this permission notice shall be included in
0015  * all copies or substantial portions of the Software.
0016  *
0017  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0018  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0019  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
0020  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
0021  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
0022  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
0023  * OTHER DEALINGS IN THE SOFTWARE.
0024  */
0025
0026 /*
0027  * The DRM mode setting helper functions are common code for drivers to use if
0028  * they wish.  Drivers are not forced to use this code in their
0029  * implementations but it would be useful if they code they do use at least
0030  * provides a consistent interface and operation to userspace
0031  */
0032
0033 #ifndef __DRM_CRTC_HELPER_H__
0034 #define __DRM_CRTC_HELPER_H__
0035
0036 #include <linux/spinlock.h>
0037 #include <linux/types.h>
0038 #include <linux/idr.h>
0039
0040 #include <linux/fb.h>
0041
0042 #include <drm/drm_crtc.h>
0043 #include <drm/drm_modeset_helper_vtables.h>
0044 #include <drm/drm_modeset_helper.h>
0045
0046 void drm_helper_disable_unused_functions(struct drm_device *dev);
0047 int drm_crtc_helper_set_config(struct drm_mode_set *set,
0048                    struct drm_modeset_acquire_ctx *ctx);
0049 bool drm_crtc_helper_set_mode(struct drm_crtc *crtc,
0050                   struct drm_display_mode *mode,
0051                   int x, int y,
0052                   struct drm_framebuffer *old_fb);
0053 bool drm_helper_crtc_in_use(struct drm_crtc *crtc);
0054 bool drm_helper_encoder_in_use(struct drm_encoder *encoder);
0055
0056 int drm_helper_connector_dpms(struct drm_connector *connector, int mode);
0057
0058 void drm_helper_resume_force_mode(struct drm_device *dev);
0059 int drm_helper_force_disable_all(struct drm_device *dev);
0060
0061 #endif