LXR linux/drivers/gpu/drm/sti/sti

   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
  19struct device;
  20
  21#define to_sti_mixer(x) container_of(x, struct sti_mixer, drm_crtc)
  22
  23enum 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 */
  38struct 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
  46const char *sti_mixer_to_str(struct sti_mixer *mixer);
  47
  48struct sti_mixer *sti_mixer_create(struct device *dev,
  49                                   struct drm_device *drm_dev,
  50                                   int id,
  51                                   void __iomem *baseaddr);
  52
  53int sti_mixer_set_plane_status(struct sti_mixer *mixer,
  54                               struct sti_plane *plane, bool status);
  55int sti_mixer_set_plane_depth(struct sti_mixer *mixer, struct sti_plane *plane);
  56int sti_mixer_active_video_area(struct sti_mixer *mixer,
  57                                struct drm_display_mode *mode);
  58
  59void sti_mixer_set_background_status(struct sti_mixer *mixer, bool enable);
  60
  61void 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
  70