1/*
2 * Copyright © 2006 Keith Packard
3 * Copyright © 2007-2008 Dave Airlie
4 * Copyright © 2007-2008 Intel Corporation
5 * Jesse Barnes <jesse.barnes@intel.com>
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
36#include <linux/spinlock.h>
37#include <linux/types.h>
38#include <linux/idr.h>
39
40#include <linux/fb.h>
41
42#include <drm/drm_crtc.h>
43#include <drm/drm_modeset_helper_vtables.h>
44#include <drm/drm_modeset_helper.h>
45
46void drm_helper_disable_unused_functions(struct drm_device *dev);
47int drm_crtc_helper_set_config(struct drm_mode_set *set,
48 struct drm_modeset_acquire_ctx *ctx);
49bool drm_crtc_helper_set_mode(struct drm_crtc *crtc,
50 struct drm_display_mode *mode,
51 int x, int y,
52 struct drm_framebuffer *old_fb);
53bool drm_helper_crtc_in_use(struct drm_crtc *crtc);
54bool drm_helper_encoder_in_use(struct drm_encoder *encoder);
55
56int drm_helper_connector_dpms(struct drm_connector *connector, int mode);
57
58void drm_helper_resume_force_mode(struct drm_device *dev);
59int drm_helper_force_disable_all(struct drm_device *dev);
60
61#endif
62