drivers/gpu/drm/sti/sti_mixer.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Copyright (C) STMicroelectronics SA 2014
   4  * Authors: Benjamin Gaignard <benjamin.gaignard@st.com>
   5  *          Fabien Dessenne <fabien.dessenne@st.com>
   6  *          for STMicroelectronics.
   7  */
   8
   9 #ifndef _STI_MIXER_H_
  10 #define _STI_MIXER_H_
  11
  12 #include <drm/drm_crtc.h>
  13
  14 #include <drm/drm_debugfs.h>
  15 #include <drm/drm_file.h>
  16
  17 #include "sti_plane.h"
  18
  19 struct device;
  20
  21 #define to_sti_mixer(x) container_of(x, struct sti_mixer, drm_crtc)
  22
  23 enum sti_mixer_status {
  24         STI_MIXER_READY,
  25         STI_MIXER_DISABLING,
  26         STI_MIXER_DISABLED,
  27 };
  28
  29 /**
  30  * STI Mixer subdevice structure
  31  *
  32  * @dev: driver device
  33  * @regs: mixer registers
  34  * @id: id of the mixer
  35  * @drm_crtc: crtc object link to the mixer
  36  * @status: to know the status of the mixer
  37  */
  38 struct sti_mixer {
  39         struct device *dev;
  40         void __iomem *regs;
  41         int id;
  42         struct drm_crtc drm_crtc;
  43         enum sti_mixer_status status;
  44 };
  45
  46 const char *sti_mixer_to_str(struct sti_mixer *mixer);
  47
  48 struct sti_mixer *sti_mixer_create(struct device *dev,
  49                                    struct drm_device *drm_dev,
  50                                    int id,
  51                                    void __iomem *baseaddr);
  52
  53 int sti_mixer_set_plane_status(struct sti_mixer *mixer,
  54                                struct sti_plane *plane, bool status);
  55 int sti_mixer_set_plane_depth(struct sti_mixer *mixer, struct sti_plane *plane);
  56 int sti_mixer_active_video_area(struct sti_mixer *mixer,
  57                                 struct drm_display_mode *mode);
  58
  59 void sti_mixer_set_background_status(struct sti_mixer *mixer, bool enable);
  60
  61 int sti_mixer_debugfs_init(struct sti_mixer *mixer, struct drm_minor *minor);
  62
  63 /* depth in Cross-bar control = z order */
  64 #define GAM_MIXER_NB_DEPTH_LEVEL 6
  65
  66 #define STI_MIXER_MAIN 0
  67 #define STI_MIXER_AUX  1
  68
  69 #endif