Differential D28849 Diff 84599 stand/i386/libi386/vbe.c

Changeset View

Standalone View

stand/i386/libi386/vbe.c

	Show First 20 Lines • Show All 45 Lines • ▼ Show 20 Lines
	* VESA BIOS Extensions routines			* VESA BIOS Extensions routines
	*/			*/

	static struct vbeinfoblock *vbe;			static struct vbeinfoblock *vbe;
	static struct modeinfoblock *vbe_mode;			static struct modeinfoblock *vbe_mode;

	static uint16_t *vbe_mode_list;			static uint16_t *vbe_mode_list;
	static size_t vbe_mode_list_size;			static size_t vbe_mode_list_size;
				struct vesa_edid_info *edid_info = NULL;

	/* The default VGA color palette format is 6 bits per primary color. */			/* The default VGA color palette format is 6 bits per primary color. */
	int palette_format = 6;			int palette_format = 6;

	#define VESA_MODE_BASE 0x100			#define VESA_MODE_BASE 0x100

	/*			/*
	* palette array for 8-bit indexed colors. In this case, cmap does store			* palette array for 8-bit indexed colors. In this case, cmap does store
	▲ Show 20 Lines • Show All 769 Lines • ▼ Show 20 Lines
	{			{
	printf("0x%x=%dx%dx%d", modenum,			printf("0x%x=%dx%dx%d", modenum,
	mi->XResolution, mi->YResolution, mi->BitsPerPixel);			mi->XResolution, mi->YResolution, mi->BitsPerPixel);
	}			}

	static bool			static bool
	vbe_get_edid(edid_res_list_t *res)			vbe_get_edid(edid_res_list_t *res)
	{			{
	struct vesa_edid_info *edid_info;			struct vesa_edid_info *edidp;
	const uint8_t magic[] = EDID_MAGIC;			const uint8_t magic[] = EDID_MAGIC;
	int ddc_caps;			int ddc_caps;
	bool ret = false;			bool ret = false;

				if (edid_info != NULL)
				return (gfx_get_edid_resolution(edid_info, res));

	ddc_caps = biosvbe_ddc_caps();			ddc_caps = biosvbe_ddc_caps();
	if (ddc_caps == 0) {			if (ddc_caps == 0) {
	return (ret);			return (ret);
	}			}

	edid_info = bio_alloc(sizeof (*edid_info));			edidp = bio_alloc(sizeof(*edidp));
	if (edid_info == NULL)			if (edidp == NULL)
	return (ret);			return (ret);
	memset(edid_info, 0, sizeof (*edid_info));			memset(edidp, 0, sizeof(*edidp));

	if (VBE_ERROR(biosvbe_ddc_read_edid(0, edid_info)))			if (VBE_ERROR(biosvbe_ddc_read_edid(0, edidp)))
	goto done;			goto done;

	if (memcmp(edid_info, magic, sizeof (magic)) != 0)			if (memcmp(edidp, magic, sizeof(magic)) != 0)
	goto done;			goto done;

	/* Unknown EDID version. */			/* Unknown EDID version. */
	if (edid_info->header.version != 1)			if (edidp->header.version != 1)
	goto done;			goto done;

	ret = gfx_get_edid_resolution(edid_info, res);			ret = gfx_get_edid_resolution(edidp, res);
				edid_info = malloc(sizeof(*edid_info));
				if (edid_info != NULL)
				memcpy(edid_info, edidp, sizeof (*edid_info));
	done:			done:
	bio_free(edid_info, sizeof (*edid_info));			bio_free(edidp, sizeof(*edidp));
	return (ret);			return (ret);
	}			}

	static bool			static bool
	vbe_get_flatpanel(uint32_t pwidth, uint32_t pheight)			vbe_get_flatpanel(uint32_t pwidth, uint32_t pheight)
	{			{
	struct vesa_flat_panel_info *fp_info;			struct vesa_flat_panel_info *fp_info;
	bool ret = false;			bool ret = false;
	▲ Show 20 Lines • Show All 387 Lines • Show Last 20 Lines