forked from Minki/linux
e21e21939c
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>
55 lines
1.4 KiB
C
55 lines
1.4 KiB
C
/*
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* Copyright (C) STMicroelectronics SA 2014
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* Authors: Benjamin Gaignard <benjamin.gaignard@st.com>
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* Fabien Dessenne <fabien.dessenne@st.com>
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* for STMicroelectronics.
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* License terms: GNU General Public License (GPL), version 2
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*/
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#ifndef _STI_MIXER_H_
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#define _STI_MIXER_H_
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#include <drm/drmP.h>
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#include "sti_layer.h"
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#define to_sti_mixer(x) container_of(x, struct sti_mixer, drm_crtc)
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/**
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* STI Mixer subdevice structure
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*
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* @dev: driver device
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* @regs: mixer registers
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* @id: id of the mixer
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* @drm_crtc: crtc object link to the mixer
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* @pending_event: set if a flip event is pending on crtc
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*/
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struct sti_mixer {
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struct device *dev;
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void __iomem *regs;
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int id;
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struct drm_crtc drm_crtc;
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struct drm_pending_vblank_event *pending_event;
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};
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const char *sti_mixer_to_str(struct sti_mixer *mixer);
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struct sti_mixer *sti_mixer_create(struct device *dev, int id,
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void __iomem *baseaddr);
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int sti_mixer_set_layer_status(struct sti_mixer *mixer,
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struct sti_layer *layer, bool status);
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int sti_mixer_set_layer_depth(struct sti_mixer *mixer, struct sti_layer *layer);
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int sti_mixer_active_video_area(struct sti_mixer *mixer,
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struct drm_display_mode *mode);
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void sti_mixer_set_background_status(struct sti_mixer *mixer, bool enable);
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/* depth in Cross-bar control = z order */
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#define GAM_MIXER_NB_DEPTH_LEVEL 7
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#define STI_MIXER_MAIN 0
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#define STI_MIXER_AUX 1
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#endif
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