video/fbdev/pm2fb.c

556  *	pm2fb_check_var - Optional function. Validates a var passed in.
557  *	@var: frame buffer variable screen structure
561  *	var passed in.
565 static int pm2fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
569 	if (var->bits_per_pixel != 8  && var->bits_per_pixel != 16 &&
570 	    var->bits_per_pixel != 24 && var->bits_per_pixel != 32) {
571 		DPRINTK("depth not supported: %u\n", var->bits_per_pixel);
575 	if (var->xres != var->xres_virtual) {
581 	if (var->yres > var->yres_virtual) {
588 	if (var->yres_virtual > 2047) {
589 		var->yres_virtual = 2047;
592 	if (var->xoffset) {
597 	if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
602 	var->xres = (var->xres + 15) & ~15; /* could sometimes be 8 */
603 	lpitch = var->xres * ((var->bits_per_pixel + 7) >> 3);
605 	if (var->xres < 320 || var->xres > 1600) {
606 		DPRINTK("width not supported: %u\n", var->xres);
610 	if (var->yres < 200 || var->yres > 1200) {
611 		DPRINTK("height not supported: %u\n", var->yres);
615 	if (lpitch * var->yres_virtual > info->fix.smem_len) {
617 			var->xres, var->yres_virtual, var->bits_per_pixel);
621 	if (!var->pixclock) {
626 	if (PICOS2KHZ(var->pixclock) > PM2_MAX_PIXCLOCK) {
628 			PICOS2KHZ(var->pixclock));
632 	var->transp.offset = 0;
633 	var->transp.length = 0;
634 	switch (var->bits_per_pixel) {
636 		var->red.length = 8;
637 		var->green.length = 8;
638 		var->blue.length = 8;
641 		var->red.offset   = 11;
642 		var->red.length   = 5;
643 		var->green.offset = 5;
644 		var->green.length = 6;
645 		var->blue.offset  = 0;
646 		var->blue.length  = 5;
649 		var->transp.offset = 24;
650 		var->transp.length = 8;
651 		var->red.offset	  = 16;
652 		var->green.offset = 8;
653 		var->blue.offset  = 0;
654 		var->red.length = 8;
655 		var->green.length = 8;
656 		var->blue.length = 8;
660 		var->red.offset   = 0;
661 		var->blue.offset  = 16;
663 		var->red.offset   = 16;
664 		var->blue.offset  = 0;
666 		var->green.offset = 8;
667 		var->red.length = 8;
668 		var->green.length = 8;
669 		var->blue.length = 8;
672 	var->height = -1;
673 	var->width = -1;
675 	var->accel_flags = 0;	/* Can't mmap if this is on */
678 		var->xres, var->yres, var->bits_per_pixel);
693 	u32 width = (info->var.xres_virtual + 7) & ~7;
694 	u32 height = info->var.yres_virtual;
695 	u32 depth = (info->var.bits_per_pixel + 7) & ~7;
706 	u32 xres = (info->var.xres + 31) & ~31;
718 	pixclock = PICOS2KHZ(info->var.pixclock);
724 	hsstart = to3264(info->var.right_margin, depth, data64);
725 	hsend = hsstart + to3264(info->var.hsync_len, depth, data64);
726 	hbend = hsend + to3264(info->var.left_margin, depth, data64);
728 	vsstart = (info->var.lower_margin)
729 		? info->var.lower_margin - 1
731 	vsend = info->var.lower_margin + info->var.vsync_len - 1;
732 	vbend = info->var.lower_margin + info->var.vsync_len +
733 		info->var.upper_margin;
734 	vtotal = info->var.yres + vbend - 1;
736 	base = to3264(info->var.yoffset * xres + info->var.xoffset, depth, 1);
740 	if (info->var.sync & FB_SYNC_HOR_HIGH_ACT) {
749 	if (info->var.sync & FB_SYNC_VERT_HIGH_ACT) {
758 	if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
762 	if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE)
764 	if ((info->var.activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW)
770 	info->fix.line_length = info->var.xres * depth / 8;
854 		info->var.xres, info->var.yres, info->var.bits_per_pixel);
887 	if (info->var.grayscale)
891 	 *   var->{color}.offset contains start of bitfield
892 	 *   var->{color}.length contains length of bitfield
900 	 *    var->{color}.offset is 0
901 	 *    var->{color}.length contains width of DAC
906 	 *    var->{color}.offset contains start of bitfield
907 	 *    var->{color}.length contains length of bitfield
917 		red = CNVT_TOHW(red, info->var.red.length);
918 		green = CNVT_TOHW(green, info->var.green.length);
919 		blue = CNVT_TOHW(blue, info->var.blue.length);
920 		transp = CNVT_TOHW(transp, info->var.transp.length);
940 		v = (red << info->var.red.offset) |
941 			(green << info->var.green.offset) |
942 			(blue << info->var.blue.offset) |
943 			(transp << info->var.transp.offset);
945 		switch (info->var.bits_per_pixel) {
963  *	@var: frame buffer variable screen structure
967  *	`xoffset' and `yoffset' fields of the `var' structure.
973 static int pm2fb_pan_display(struct fb_var_screeninfo *var,
978 	u32 depth = (info->var.bits_per_pixel + 7) & ~7;
979 	u32 xres = (info->var.xres + 31) & ~31;
982 	base = to3264(var->yoffset * xres + var->xoffset, depth, 1);
1069 	vxres = info->var.xres_virtual;
1070 	vyres = info->var.yres_virtual;
1083 	if (info->var.bits_per_pixel == 8)
1085 	if (info->var.bits_per_pixel <= 16)
1092 	if (info->var.bits_per_pixel != 24) {
1126 	vxres = info->var.xres_virtual;
1127 	vyres = info->var.yres_virtual;
1163 	u32 xres = (info->var.xres + 31) & ~31;
1187 	if (info->var.bits_per_pixel == 8) {
1191 	if (info->var.bits_per_pixel <= 16) {
1211 	if (info->var.bits_per_pixel == 24) {
1270 	int x = cursor->image.dx - info->var.xoffset;
1271 	int y = cursor->image.dy - info->var.yoffset;
1399 		int x = cursor->image.dx - info->var.xoffset + 63;
1400 		int y = cursor->image.dy - info->var.yoffset + 63;
1687 	err = fb_find_mode(&info->var, info, mode_option, NULL, 0, NULL, 8);
1689 		info->var = pm2fb_var;