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_layer.h"
  15
  16 #define to_sti_mixer(x) container_of(x, struct sti_mixer, drm_crtc)
  17
  18 /**
  19  * STI Mixer subdevice structure
  20  *
  21  * @dev: driver device
  22  * @regs: mixer registers
  23  * @id: id of the mixer
  24  * @drm_crtc: crtc object link to the mixer
  25  * @pending_event: set if a flip event is pending on crtc
  26  * @enabled: to know if the mixer is active or not
  27  */
  28 struct sti_mixer {
  29         struct device *dev;
  30         void __iomem *regs;
  31         int id;
  32         struct drm_crtc drm_crtc;
  33         struct drm_pending_vblank_event *pending_event;
  34         bool enabled;
  35 };
  36
  37 const char *sti_mixer_to_str(struct sti_mixer *mixer);
  38
  39 struct sti_mixer *sti_mixer_create(struct device *dev, int id,
  40                 void __iomem *baseaddr);
  41
  42 int sti_mixer_set_layer_status(struct sti_mixer *mixer,
  43                 struct sti_layer *layer, bool status);
  44 void sti_mixer_clear_all_layers(struct sti_mixer *mixer);
  45 int sti_mixer_set_layer_depth(struct sti_mixer *mixer, struct sti_layer *layer);
  46 int sti_mixer_active_video_area(struct sti_mixer *mixer,
  47                 struct drm_display_mode *mode);
  48
  49 void sti_mixer_set_background_status(struct sti_mixer *mixer, bool enable);
  50
  51 /* depth in Cross-bar control = z order */
  52 #define GAM_MIXER_NB_DEPTH_LEVEL 7
  53
  54 #define STI_MIXER_MAIN 0
  55 #define STI_MIXER_AUX  1
  56
  57 #endif