mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 10:49:33 +00:00
![Benjamin Gaignard](/assets/img/avatar_default.png)
Mixer hardware IP is responsible of mixing the different inputs layers. Z-order is managed by the mixer. We could 2 mixers: one for main path and one for auxillary path Mixers are part of Compositor hardware block Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Reviewed-by: Rob Clark <robdclark@gmail.com>
54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
/*
|
|
* Copyright (C) STMicroelectronics SA 2014
|
|
* Authors: Benjamin Gaignard <benjamin.gaignard@st.com>
|
|
* Fabien Dessenne <fabien.dessenne@st.com>
|
|
* for STMicroelectronics.
|
|
* License terms: GNU General Public License (GPL), version 2
|
|
*/
|
|
|
|
#ifndef _STI_MIXER_H_
|
|
#define _STI_MIXER_H_
|
|
|
|
#include <drm/drmP.h>
|
|
|
|
#include "sti_layer.h"
|
|
|
|
#define to_sti_mixer(x) container_of(x, struct sti_mixer, drm_crtc)
|
|
|
|
/**
|
|
* STI Mixer subdevice structure
|
|
*
|
|
* @dev: driver device
|
|
* @regs: mixer registers
|
|
* @id: id of the mixer
|
|
* @drm_crtc: crtc object link to the mixer
|
|
* @pending_event: set if a flip event is pending on crtc
|
|
*/
|
|
struct sti_mixer {
|
|
struct device *dev;
|
|
void __iomem *regs;
|
|
int id;
|
|
struct drm_crtc drm_crtc;
|
|
struct drm_pending_vblank_event *pending_event;
|
|
};
|
|
|
|
const char *sti_mixer_to_str(struct sti_mixer *mixer);
|
|
|
|
struct sti_mixer *sti_mixer_create(struct device *dev, int id,
|
|
void __iomem *baseaddr);
|
|
|
|
int sti_mixer_set_layer_status(struct sti_mixer *mixer,
|
|
struct sti_layer *layer, bool status);
|
|
int sti_mixer_set_layer_depth(struct sti_mixer *mixer, struct sti_layer *layer);
|
|
int sti_mixer_active_video_area(struct sti_mixer *mixer,
|
|
struct drm_display_mode *mode);
|
|
|
|
void sti_mixer_set_background_status(struct sti_mixer *mixer, bool enable);
|
|
|
|
/* depth in Cross-bar control = z order */
|
|
#define GAM_MIXER_NB_DEPTH_LEVEL 7
|
|
|
|
#define STI_MIXER_MAIN 0
|
|
#define STI_MIXER_AUX 1
|
|
|
|
#endif
|