igfx: get edid information from lvds

1 files changed, 50 insertions, 0 deletions

diff --git a/sys/src/cmd/aux/vga/edid.h b/sys/src/cmd/aux/vga/edid.h
new file mode 100644
index 000000000..84321dbba
--- /dev/null
+++ b/sys/src/cmd/aux/vga/edid.h
@@ -0,0 +1,50 @@
+typedef struct Modelist Modelist;
+typedef struct Edid Edid;
+typedef struct Flag Flag;
+
+struct Edid {
+	char		mfr[4];		/* manufacturer */
+	char		serialstr[16];	/* serial number as string (in extended data) */
+	char		name[16];	/* monitor name as string (in extended data) */
+	ushort		product;	/* product code, 0 = unused */
+	ulong		serial;		/* serial number, 0 = unused */
+	uchar		version;	/* major version number */
+	uchar		revision;	/* minor version number */
+	uchar		mfrweek;	/* week of manufacture, 0 = unused */
+	int		mfryear;	/* year of manufacture, 0 = unused */
+	uchar 		dxcm;		/* horizontal image size in cm. */
+	uchar		dycm;		/* vertical image size in cm. */
+	int		gamma;		/* gamma*100 */
+	int		rrmin;		/* minimum vertical refresh rate */
+	int		rrmax;		/* maximum vertical refresh rate */
+	int		hrmin;		/* minimum horizontal refresh rate */
+	int		hrmax;		/* maximum horizontal refresh rate */
+	ulong		pclkmax;	/* maximum pixel clock */
+	int		flags;
+	Modelist	*modelist;	/* list of supported modes */
+};
+
+struct Modelist
+{
+	Mode;
+	Modelist *next;
+};
+
+struct Flag {
+	int bit;
+	char *desc;
+};
+
+enum {
+	Fdigital	= 1<<0,	/* is a digital display */
+	Fdpmsstandby	= 1<<1,	/* supports DPMS standby mode */
+	Fdpmssuspend	= 1<<2,	/* supports DPMS suspend mode */
+	Fdpmsactiveoff	= 1<<3,	/* supports DPMS active off mode */
+	Fmonochrome	= 1<<4,	/* is a monochrome display */
+	Fgtf		= 1<<5,	/* supports VESA GTF: see /public/doc/vesa/gtf10.pdf */
+};
+Flag	edidflags[];
+void	printflags(Flag *f, int b);
+
+int	parseedid128(Edid *e, void *v);
+void	printedid(Edid *e);