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/drmP.h>
  13
  14 #include "sti_plane.h"
  15
  16 #define to_sti_mixer(x) container_of(x, struct sti_mixer, drm_crtc)
  17
  18 enum sti_mixer_status {
  19         STI_MIXER_READY,
  20         STI_MIXER_DISABLING,
  21         STI_MIXER_DISABLED,
  22 };
  23
  24 /**
  25  * STI Mixer subdevice structure
  26  *
  27  * @dev: driver device
  28  * @regs: mixer registers
  29  * @id: id of the mixer
  30  * @drm_crtc: crtc object link to the mixer
  31  * @status: to know the status of the mixer
  32  */
  33 struct sti_mixer {
  34         struct device *dev;
  35         void __iomem *regs;
  36         int id;
  37         struct drm_crtc drm_crtc;
  38         enum sti_mixer_status status;
  39 };
  40
  41 const char *sti_mixer_to_str(struct sti_mixer *mixer);
  42
  43 struct sti_mixer *sti_mixer_create(struct device *dev,
  44                                    struct drm_device *drm_dev,
  45                                    int id,
  46                                    void __iomem *baseaddr);
  47
  48 int sti_mixer_set_plane_status(struct sti_mixer *mixer,
  49                                struct sti_plane *plane, bool status);
  50 int sti_mixer_set_plane_depth(struct sti_mixer *mixer, struct sti_plane *plane);
  51 int sti_mixer_active_video_area(struct sti_mixer *mixer,
  52                                 struct drm_display_mode *mode);
  53
  54 void sti_mixer_set_background_status(struct sti_mixer *mixer, bool enable);
  55
  56 int sti_mixer_debugfs_init(struct sti_mixer *mixer, struct drm_minor *minor);
  57
  58 /* depth in Cross-bar control = z order */
  59 #define GAM_MIXER_NB_DEPTH_LEVEL 6
  60
  61 #define STI_MIXER_MAIN 0
  62 #define STI_MIXER_AUX  1
  63
  64 #endif