drivers/gpu/drm/sun4i/sun8i_ui_layer.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/sun4i/sun8i_ui_layer.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/sun4i/sun8i_ui_layer.h
Extension
.h
Size
2079 bytes
Lines
59
Domain
Driver Families
Bucket
drivers/gpu
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef _SUN8I_UI_LAYER_H_
#define _SUN8I_UI_LAYER_H_

#include <drm/drm_plane.h>

#define SUN8I_MIXER_CHAN_UI_LAYER_ATTR(base, layer) \
			((base) + 0x20 * (layer) + 0x0)
#define SUN8I_MIXER_CHAN_UI_LAYER_SIZE(base, layer) \
			((base) + 0x20 * (layer) + 0x4)
#define SUN8I_MIXER_CHAN_UI_LAYER_COORD(base, layer) \
			((base) + 0x20 * (layer) + 0x8)
#define SUN8I_MIXER_CHAN_UI_LAYER_PITCH(base, layer) \
			((base) + 0x20 * (layer) + 0xc)
#define SUN8I_MIXER_CHAN_UI_LAYER_TOP_LADDR(base, layer) \
			((base) + 0x20 * (layer) + 0x10)
#define SUN8I_MIXER_CHAN_UI_LAYER_BOT_LADDR(base, layer) \
			((base) + 0x20 * (layer) + 0x14)
#define SUN8I_MIXER_CHAN_UI_LAYER_FCOLOR(base, layer) \
			((base) + 0x20 * (layer) + 0x18)
#define SUN8I_MIXER_CHAN_UI_TOP_HADDR(base) \
			((base) + 0x80)
#define SUN8I_MIXER_CHAN_UI_BOT_HADDR(base) \
			((base) + 0x84)
#define SUN8I_MIXER_CHAN_UI_OVL_SIZE(base) \
			((base) + 0x88)

#define SUN8I_MIXER_CHAN_UI_LAYER_ATTR_EN		BIT(0)
#define SUN8I_MIXER_CHAN_UI_LAYER_ATTR_ALPHA_MODE_MASK	GENMASK(2, 1)
#define SUN8I_MIXER_CHAN_UI_LAYER_ATTR_FBFMT_MASK	GENMASK(12, 8)
#define SUN8I_MIXER_CHAN_UI_LAYER_ATTR_FBFMT_OFFSET	8
#define SUN8I_MIXER_CHAN_UI_LAYER_ATTR_ALPHA_MASK	GENMASK(31, 24)
#define SUN8I_MIXER_CHAN_UI_LAYER_ATTR_ALPHA(x)		((x) << 24)

#define SUN8I_MIXER_CHAN_UI_LAYER_ATTR_ALPHA_MODE_PIXEL		((0) << 1)
#define SUN8I_MIXER_CHAN_UI_LAYER_ATTR_ALPHA_MODE_LAYER		((1) << 1)
#define SUN8I_MIXER_CHAN_UI_LAYER_ATTR_ALPHA_MODE_COMBINED	((2) << 1)

struct sun8i_mixer;
struct sun8i_layer;

struct sun8i_layer *sun8i_ui_layer_init_one(struct drm_device *drm,
					    enum drm_plane_type type,
					    struct regmap *regs,
					    int index, int phy_index,
					    int plane_cnt,
					    const struct sun8i_layer_cfg *cfg);
#endif /* _SUN8I_UI_LAYER_H_ */

Annotation

Implementation Notes