drivers/gpu/drm/ast/ast_vbios.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/ast/ast_vbios.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/ast/ast_vbios.h
Extension
.h
Size
3214 bytes
Lines
109
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 ast_vbios_enhtable {
	u32 ht;
	u32 hde;
	u32 hfp;
	u32 hsync;
	u32 vt;
	u32 vde;
	u32 vfp;
	u32 vsync;
	u32 dclk_index;
	u32 flags;
	u32 refresh_rate;
	u32 refresh_rate_index;
	u32 mode_id;
};

#define AST_VBIOS_INVALID_MODE \
	{0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u}

static inline bool ast_vbios_mode_is_valid(const struct ast_vbios_enhtable *vmode)
{
	return vmode->ht && vmode->vt && vmode->refresh_rate;
}

const struct ast_vbios_enhtable *ast_vbios_find_mode(const struct ast_device *ast,
						     const struct drm_display_mode *mode);

#endif

Annotation

Implementation Notes