1 /* $NetBSD: drm_crtc_helper.h,v 1.5 2021/12/18 23:45:45 riastradh Exp $ */ 2 3 /* 4 * Copyright © 2006 Keith Packard 5 * Copyright © 2007-2008 Dave Airlie 6 * Copyright © 2007-2008 Intel Corporation 7 * Jesse Barnes <jesse.barnes@intel.com> 8 * 9 * Permission is hereby granted, free of charge, to any person obtaining a 10 * copy of this software and associated documentation files (the "Software"), 11 * to deal in the Software without restriction, including without limitation 12 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 13 * and/or sell copies of the Software, and to permit persons to whom the 14 * Software is furnished to do so, subject to the following conditions: 15 * 16 * The above copyright notice and this permission notice shall be included in 17 * all copies or substantial portions of the Software. 18 * 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 22 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 23 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 24 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 25 * OTHER DEALINGS IN THE SOFTWARE. 26 */ 27 28 /* 29 * The DRM mode setting helper functions are common code for drivers to use if 30 * they wish. Drivers are not forced to use this code in their 31 * implementations but it would be useful if they code they do use at least 32 * provides a consistent interface and operation to userspace 33 */ 34 35 #ifndef __DRM_CRTC_HELPER_H__ 36 #define __DRM_CRTC_HELPER_H__ 37 38 #include <linux/spinlock.h> 39 #include <linux/types.h> 40 #include <linux/idr.h> 41 42 #include <linux/fb.h> 43 44 #include <drm/drm_crtc.h> 45 #include <drm/drm_modeset_helper_vtables.h> 46 #include <drm/drm_modeset_helper.h> 47 48 void drm_helper_disable_unused_functions(struct drm_device *dev); 49 int drm_crtc_helper_set_config(struct drm_mode_set *set, 50 struct drm_modeset_acquire_ctx *ctx); 51 bool drm_crtc_helper_set_mode(struct drm_crtc *crtc, 52 struct drm_display_mode *mode, 53 int x, int y, 54 struct drm_framebuffer *old_fb); 55 bool drm_helper_crtc_in_use(struct drm_crtc *crtc); 56 bool drm_helper_encoder_in_use(struct drm_encoder *encoder); 57 58 int drm_helper_connector_dpms(struct drm_connector *connector, int mode); 59 60 void drm_helper_resume_force_mode(struct drm_device *dev); 61 int drm_helper_force_disable_all(struct drm_device *dev); 62 63 #endif 64