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 46 void drm_helper_disable_unused_functions(struct drm_device *dev); 47 int drm_crtc_helper_set_config(struct drm_mode_set *set, 48 struct drm_modeset_acquire_ctx *ctx); 49 bool 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); 53 bool drm_helper_crtc_in_use(struct drm_crtc *crtc); 54 bool drm_helper_encoder_in_use(struct drm_encoder *encoder); 55 56 int drm_helper_connector_dpms(struct drm_connector *connector, int mode); 57 58 void drm_helper_resume_force_mode(struct drm_device *dev); 59 60 /* drm_probe_helper.c */ 61 int drm_helper_probe_single_connector_modes(struct drm_connector 62 *connector, uint32_t maxX, 63 uint32_t maxY); 64 int drm_helper_probe_detect(struct drm_connector *connector, 65 struct drm_modeset_acquire_ctx *ctx, 66 bool force); 67 void drm_kms_helper_poll_init(struct drm_device *dev); 68 void drm_kms_helper_poll_fini(struct drm_device *dev); 69 bool drm_helper_hpd_irq_event(struct drm_device *dev); 70 void drm_kms_helper_hotplug_event(struct drm_device *dev); 71 72 void drm_kms_helper_poll_disable(struct drm_device *dev); 73 void drm_kms_helper_poll_enable(struct drm_device *dev); 74 bool drm_kms_helper_is_poll_worker(void); 75 76 #endif 77