Edit File: drm_crtc_helper.h
/* * Copyright © 2006 Keith Packard * Copyright © 2007-2008 Dave Airlie * Copyright © 2007-2008 Intel Corporation * Jesse Barnes <jesse.barnes@intel.com> * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. */ /* * The DRM mode setting helper functions are common code for drivers to use if * they wish. Drivers are not forced to use this code in their * implementations but it would be useful if they code they do use at least * provides a consistent interface and operation to userspace */ #ifndef __DRM_CRTC_HELPER_H__ #define __DRM_CRTC_HELPER_H__ #include <linux/spinlock.h> #include <linux/types.h> #include <linux/idr.h> #include <linux/fb.h> #include <drm/drm_crtc.h> #include <drm/drm_modeset_helper_vtables.h> #include <drm/drm_modeset_helper.h> void drm_helper_disable_unused_functions(struct drm_device *dev); int drm_crtc_helper_set_config(struct drm_mode_set *set, struct drm_modeset_acquire_ctx *ctx); bool drm_crtc_helper_set_mode(struct drm_crtc *crtc, struct drm_display_mode *mode, int x, int y, struct drm_framebuffer *old_fb); bool drm_helper_crtc_in_use(struct drm_crtc *crtc); bool drm_helper_encoder_in_use(struct drm_encoder *encoder); int drm_helper_connector_dpms(struct drm_connector *connector, int mode); void drm_helper_resume_force_mode(struct drm_device *dev); /* drm_probe_helper.c */ int drm_helper_probe_single_connector_modes(struct drm_connector *connector, uint32_t maxX, uint32_t maxY); int drm_helper_probe_detect(struct drm_connector *connector, struct drm_modeset_acquire_ctx *ctx, bool force); void drm_kms_helper_poll_init(struct drm_device *dev); void drm_kms_helper_poll_fini(struct drm_device *dev); bool drm_helper_hpd_irq_event(struct drm_device *dev); void drm_kms_helper_hotplug_event(struct drm_device *dev); void drm_kms_helper_poll_disable(struct drm_device *dev); void drm_kms_helper_poll_enable(struct drm_device *dev); bool drm_kms_helper_is_poll_worker(void); #endif