drivers/gpu/drm/sti/sti_mixer.h

   1 /*
   2  * Copyright (C) STMicroelectronics SA 2014
   3  * Authors: Benjamin Gaignard <benjamin.gaignard@st.com>
   4  *          Fabien Dessenne <fabien.dessenne@st.com>
   5  *          for STMicroelectronics.
   6  * License terms:  GNU General Public License (GPL), version 2
   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  * @pending_event: set if a flip event is pending on crtc
  32  * @status: to know the status of the mixer
  33  */
  34 struct sti_mixer {
  35         struct device *dev;
  36         void __iomem *regs;
  37         int id;
  38         struct drm_crtc drm_crtc;
  39         struct drm_pending_vblank_event *pending_event;
  40         enum sti_mixer_status status;
  41 };
  42
  43 const char *sti_mixer_to_str(struct sti_mixer *mixer);
  44
  45 struct sti_mixer *sti_mixer_create(struct device *dev, 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 /* depth in Cross-bar control = z order */
  57 #define GAM_MIXER_NB_DEPTH_LEVEL 6
  58
  59 #define STI_MIXER_MAIN 0
  60 #define STI_MIXER_AUX  1
  61
  62 #endif