include/video/mmp_disp.h

Source file repositories/reference/linux-study-clean/include/video/mmp_disp.h

File Facts

System
Linux kernel
Corpus path
include/video/mmp_disp.h
Extension
.h
Size
7226 bytes
Lines
346
Domain
Repository Root And Misc
Bucket
include
Inferred role
Repository Root And Misc: implementation source
Status
source implementation candidate

Why This File Exists

Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

Dependency Surface

Detected Declarations

Annotated Snippet

struct mmp_win {
	/* position/size of window */
	u16	xsrc;
	u16	ysrc;
	u16	xdst;
	u16	ydst;
	u16	xpos;
	u16	ypos;
	u16	left_crop;
	u16	right_crop;
	u16	up_crop;
	u16	bottom_crop;
	int	pix_fmt;
	/*
	 * pitch[0]: graphics/video layer line length or y pitch
	 * pitch[1]/pitch[2]: video u/v pitch if non-zero
	 */
	u32	pitch[3];
};

struct mmp_addr {
	/* phys address */
	u32	phys[6];
};

/* path related para: mode */
struct mmp_mode {
	const char *name;
	u32 refresh;
	u32 xres;
	u32 yres;
	u32 left_margin;
	u32 right_margin;
	u32 upper_margin;
	u32 lower_margin;
	u32 hsync_len;
	u32 vsync_len;
	u32 hsync_invert;
	u32 vsync_invert;
	u32 invert_pixclock;
	u32 pixclock_freq;
	int pix_fmt_out;
};

/* main structures */
struct mmp_path;
struct mmp_overlay;
struct mmp_panel;

/* status types */
enum {
	MMP_OFF = 0,
	MMP_ON,
};

static inline const char *stat_name(int stat)
{
	switch (stat) {
	case MMP_OFF:
		return "OFF";
	case MMP_ON:
		return "ON";
	default:
		return "UNKNOWNSTAT";
	}
}

struct mmp_overlay_ops {
	/* should be provided by driver */
	void (*set_fetch)(struct mmp_overlay *overlay, int fetch_id);
	void (*set_onoff)(struct mmp_overlay *overlay, int status);
	void (*set_win)(struct mmp_overlay *overlay, struct mmp_win *win);
	int (*set_addr)(struct mmp_overlay *overlay, struct mmp_addr *addr);
};

/* overlay describes a z-order indexed slot in each path. */
struct mmp_overlay {
	int id;
	const char *name;
	struct mmp_path *path;

	/* overlay info: private data */
	int dmafetch_id;
	struct mmp_addr addr;
	struct mmp_win win;

	/* state */
	int open_count;
	int status;
	struct mutex access_ok;

Annotation

Implementation Notes