From e21e21939ce0031c11605cc4a7fed83c8ed42b52 Mon Sep 17 00:00:00 2001 From: Benjamin Gaignard Date: Mon, 28 Jul 2014 10:30:18 +0200 Subject: drm: sti: add Mixer 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 Reviewed-by: Rob Clark --- drivers/gpu/drm/sti/sti_mixer.h | 54 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 drivers/gpu/drm/sti/sti_mixer.h (limited to 'drivers/gpu/drm/sti/sti_mixer.h') diff --git a/drivers/gpu/drm/sti/sti_mixer.h b/drivers/gpu/drm/sti/sti_mixer.h new file mode 100644 index 000000000000..874372102e52 --- /dev/null +++ b/drivers/gpu/drm/sti/sti_mixer.h @@ -0,0 +1,54 @@ +/* + * Copyright (C) STMicroelectronics SA 2014 + * Authors: Benjamin Gaignard + * Fabien Dessenne + * for STMicroelectronics. + * License terms: GNU General Public License (GPL), version 2 + */ + +#ifndef _STI_MIXER_H_ +#define _STI_MIXER_H_ + +#include + +#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 -- cgit v1.2.3