drm_crtc_helper_internal.h 2.6 KB

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283
  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. * This header file contains mode setting related functions and definitions
  24. * which are only used within the drm kms helper module as internal
  25. * implementation details and are not exported to drivers.
  26. */
  27. #include <drm/drm_connector.h>
  28. #include <drm/drm_crtc.h>
  29. #include <drm/drm_dp_helper.h>
  30. #include <drm/drm_encoder.h>
  31. #include <drm/drm_modes.h>
  32. /* drm_fb_helper.c */
  33. #ifdef CONFIG_DRM_FBDEV_EMULATION
  34. int drm_fb_helper_modinit(void);
  35. #else
  36. static inline int drm_fb_helper_modinit(void)
  37. {
  38. return 0;
  39. }
  40. #endif
  41. /* drm_dp_aux_dev.c */
  42. #ifdef CONFIG_DRM_DP_AUX_CHARDEV
  43. int drm_dp_aux_dev_init(void);
  44. void drm_dp_aux_dev_exit(void);
  45. int drm_dp_aux_register_devnode(struct drm_dp_aux *aux);
  46. void drm_dp_aux_unregister_devnode(struct drm_dp_aux *aux);
  47. #else
  48. static inline int drm_dp_aux_dev_init(void)
  49. {
  50. return 0;
  51. }
  52. static inline void drm_dp_aux_dev_exit(void)
  53. {
  54. }
  55. static inline int drm_dp_aux_register_devnode(struct drm_dp_aux *aux)
  56. {
  57. return 0;
  58. }
  59. static inline void drm_dp_aux_unregister_devnode(struct drm_dp_aux *aux)
  60. {
  61. }
  62. #endif
  63. /* drm_probe_helper.c */
  64. enum drm_mode_status drm_crtc_mode_valid(struct drm_crtc *crtc,
  65. const struct drm_display_mode *mode);
  66. enum drm_mode_status drm_encoder_mode_valid(struct drm_encoder *encoder,
  67. const struct drm_display_mode *mode);
  68. int
  69. drm_connector_mode_valid(struct drm_connector *connector,
  70. struct drm_display_mode *mode,
  71. struct drm_modeset_acquire_ctx *ctx,
  72. enum drm_mode_status *status);
  73. struct drm_encoder *
  74. drm_connector_get_single_encoder(struct drm_connector *connector);