drivers/gpu/drm/imx/dc/dc-fu.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/imx/dc/dc-fu.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/imx/dc/dc-fu.h
Extension
.h
Size
3754 bytes
Lines
130
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

struct dc_fu_ops {
	void (*init)(struct dc_fu *fu);
	void (*set_burstlength)(struct dc_fu *fu, dma_addr_t baddr);
	void (*set_baseaddress)(struct dc_fu *fu, enum dc_fu_frac frac,
				dma_addr_t baddr);
	void (*set_src_stride)(struct dc_fu *fu, enum dc_fu_frac frac,
			       unsigned int stride);
	void (*set_src_buf_dimensions)(struct dc_fu *fu, enum dc_fu_frac frac,
				       int w, int h);
	void (*set_fmt)(struct dc_fu *fu, enum dc_fu_frac frac,
			const struct drm_format_info *format);
	void (*enable_src_buf)(struct dc_fu *fu, enum dc_fu_frac frac);
	void (*disable_src_buf)(struct dc_fu *fu, enum dc_fu_frac frac);
	void (*set_framedimensions)(struct dc_fu *fu, int w, int h);
	void (*set_layerblend)(struct dc_fu *fu, struct dc_lb *lb);
	enum dc_link_id (*get_link_id)(struct dc_fu *fu);
	const char *(*get_name)(struct dc_fu *fu);
};

struct dc_fu {
	struct regmap *reg_pec;
	struct regmap *reg_cfg;
	char name[21];
	u32 reg_baseaddr[DC_FETCHUNIT_FRAC_NUM];
	u32 reg_sourcebufferattributes[DC_FETCHUNIT_FRAC_NUM];
	u32 reg_sourcebufferdimension[DC_FETCHUNIT_FRAC_NUM];
	u32 reg_layeroffset[DC_FETCHUNIT_FRAC_NUM];
	u32 reg_clipwindowoffset[DC_FETCHUNIT_FRAC_NUM];
	u32 reg_clipwindowdimensions[DC_FETCHUNIT_FRAC_NUM];
	u32 reg_constantcolor[DC_FETCHUNIT_FRAC_NUM];
	u32 reg_layerproperty[DC_FETCHUNIT_FRAC_NUM];
	unsigned int id;
	enum dc_link_id link_id;
	struct dc_fu_ops ops;
	struct dc_lb *lb;
};

extern const struct dc_fu_ops dc_fu_common_ops;

void dc_fu_get_pixel_format_bits(struct dc_fu *fu, u32 format, u32 *bits);
void dc_fu_get_pixel_format_shifts(struct dc_fu *fu, u32 format, u32 *shifts);
void dc_fu_shdldreq_sticky(struct dc_fu *fu, u8 layer_mask);
void dc_fu_set_src_bpp(struct dc_fu *fu, enum dc_fu_frac frac, unsigned int bpp);
void dc_fu_common_hw_init(struct dc_fu *fu);

const struct dc_fu_ops *dc_fu_get_ops(struct dc_fu *fu);

#endif /* __DC_FETCHUNIT_H__ */

Annotation

Implementation Notes