drivers/gpu/drm/drm_crtc_helper_internal.h

   1 /*
   2  * Copyright © 2016 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  */
  22
  23 /*
  24  * This header file contains mode setting related functions and definitions
  25  * which are only used within the drm kms helper module as internal
  26  * implementation details and are not exported to drivers.
  27  */
  28
  29 #ifndef __DRM_CRTC_HELPER_INTERNAL_H__
  30 #define __DRM_CRTC_HELPER_INTERNAL_H__
  31
  32 enum drm_mode_status;
  33 struct drm_connector;
  34 struct drm_crtc;
  35 struct drm_display_mode;
  36 struct drm_encoder;
  37 struct drm_modeset_acquire_ctx;
  38
  39 /* drm_probe_helper.c */
  40 enum drm_mode_status drm_crtc_mode_valid(struct drm_crtc *crtc,
  41                                          const struct drm_display_mode *mode);
  42 enum drm_mode_status drm_encoder_mode_valid(struct drm_encoder *encoder,
  43                                             const struct drm_display_mode *mode);
  44 int
  45 drm_connector_mode_valid(struct drm_connector *connector,
  46                          struct drm_display_mode *mode,
  47                          struct drm_modeset_acquire_ctx *ctx,
  48                          enum drm_mode_status *status);
  49
  50 struct drm_encoder *
  51 drm_connector_get_single_encoder(struct drm_connector *connector);
  52
  53 #endif /* __DRM_CRTC_HELPER_INTERNAL_H__ */