435 static int tdfxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)  in tdfxfb_check_var()  argument
440 	if (var->bits_per_pixel != 8  && var->bits_per_pixel != 16 &&  in tdfxfb_check_var()
441 	    var->bits_per_pixel != 24 && var->bits_per_pixel != 32) {  in tdfxfb_check_var()
442 		DPRINTK("depth not supported: %u\n", var->bits_per_pixel);  in tdfxfb_check_var()
446 	if (var->xres != var->xres_virtual)  in tdfxfb_check_var()
447 		var->xres_virtual = var->xres;  in tdfxfb_check_var()
449 	if (var->yres > var->yres_virtual)  in tdfxfb_check_var()
450 		var->yres_virtual = var->yres;  in tdfxfb_check_var()
452 	if (var->xoffset) {  in tdfxfb_check_var()
456 	var->yoffset = 0;  in tdfxfb_check_var()
464 	if (((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) &&  in tdfxfb_check_var()
471 	    info->monspecs.dclkmax && fb_validate_mode(var, info) < 0) {  in tdfxfb_check_var()
476 	var->xres = (var->xres + 15) & ~15; /* could sometimes be 8 */  in tdfxfb_check_var()
477 	lpitch = var->xres * ((var->bits_per_pixel + 7) >> 3);  in tdfxfb_check_var()
479 	if (var->xres < 320 || var->xres > 2048) {  in tdfxfb_check_var()
480 		DPRINTK("width not supported: %u\n", var->xres);  in tdfxfb_check_var()
484 	if (var->yres < 200 || var->yres > 2048) {  in tdfxfb_check_var()
485 		DPRINTK("height not supported: %u\n", var->yres);  in tdfxfb_check_var()
489 	if (lpitch * var->yres_virtual > info->fix.smem_len) {  in tdfxfb_check_var()
490 		var->yres_virtual = info->fix.smem_len / lpitch;  in tdfxfb_check_var()
491 		if (var->yres_virtual < var->yres) {  in tdfxfb_check_var()
493 				var->xres, var->yres_virtual,  in tdfxfb_check_var()
494 				var->bits_per_pixel);  in tdfxfb_check_var()
499 	if (PICOS2KHZ(var->pixclock) > par->max_pixclock) {  in tdfxfb_check_var()
501 			PICOS2KHZ(var->pixclock));  in tdfxfb_check_var()
505 	var->transp.offset = 0;  in tdfxfb_check_var()
506 	var->transp.length = 0;  in tdfxfb_check_var()
507 	switch (var->bits_per_pixel) {  in tdfxfb_check_var()
509 		var->red.length = 8;  in tdfxfb_check_var()
510 		var->red.offset = 0;  in tdfxfb_check_var()
511 		var->green = var->red;  in tdfxfb_check_var()
512 		var->blue = var->red;  in tdfxfb_check_var()
515 		var->red.offset   = 11;  in tdfxfb_check_var()
516 		var->red.length   = 5;  in tdfxfb_check_var()
517 		var->green.offset = 5;  in tdfxfb_check_var()
518 		var->green.length = 6;  in tdfxfb_check_var()
519 		var->blue.offset  = 0;  in tdfxfb_check_var()
520 		var->blue.length  = 5;  in tdfxfb_check_var()
523 		var->transp.offset = 24;  in tdfxfb_check_var()
524 		var->transp.length = 8;  in tdfxfb_check_var()
526 		var->red.offset = 16;  in tdfxfb_check_var()
527 		var->green.offset = 8;  in tdfxfb_check_var()
528 		var->blue.offset = 0;  in tdfxfb_check_var()
529 		var->red.length = var->green.length = var->blue.length = 8;  in tdfxfb_check_var()
532 	var->width = -1;  in tdfxfb_check_var()
533 	var->height = -1;  in tdfxfb_check_var()
535 	var->accel_flags = FB_ACCELF_TEXT;  in tdfxfb_check_var()
538 		var->xres, var->yres, var->bits_per_pixel);  in tdfxfb_check_var()
545 	u32 hdispend = info->var.xres;  in tdfxfb_set_par()
546 	u32 hsyncsta = hdispend + info->var.right_margin;  in tdfxfb_set_par()
547 	u32 hsyncend = hsyncsta + info->var.hsync_len;  in tdfxfb_set_par()
548 	u32 htotal   = hsyncend + info->var.left_margin;  in tdfxfb_set_par()
554 	u32 cpp = (info->var.bits_per_pixel + 7) >> 3;  in tdfxfb_set_par()
564 	freq = PICOS2KHZ(info->var.pixclock);  in tdfxfb_set_par()
586 	if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) {  in tdfxfb_set_par()
587 		vd = (info->var.yres << 1) - 1;  in tdfxfb_set_par()
588 		vs  = vd + (info->var.lower_margin << 1);  in tdfxfb_set_par()
589 		ve  = vs + (info->var.vsync_len << 1);  in tdfxfb_set_par()
590 		vt = ve + (info->var.upper_margin << 1) - 1;  in tdfxfb_set_par()
591 		reg.screensize = info->var.xres | (info->var.yres << 13);  in tdfxfb_set_par()
595 		vd = info->var.yres - 1;  in tdfxfb_set_par()
596 		vs  = vd + info->var.lower_margin;  in tdfxfb_set_par()
597 		ve  = vs + info->var.vsync_len;  in tdfxfb_set_par()
598 		vt = ve + info->var.upper_margin - 1;  in tdfxfb_set_par()
599 		reg.screensize = info->var.xres | (info->var.yres << 12);  in tdfxfb_set_par()
607 			(info->var.xres < 400 ? 0xa0 :  in tdfxfb_set_par()
608 			 info->var.xres < 480 ? 0x60 :  in tdfxfb_set_par()
609 			 info->var.xres < 768 ? 0xe0 : 0x20);  in tdfxfb_set_par()
692 	reg.stride    = info->var.xres * cpp;  in tdfxfb_set_par()
693 	reg.startaddr = info->var.yoffset * reg.stride  in tdfxfb_set_par()
694 			+ info->var.xoffset * cpp;  in tdfxfb_set_par()
702 	if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED)  in tdfxfb_set_par()
707 	switch (info->var.bits_per_pixel) {  in tdfxfb_set_par()
727 	info->fix.visual = (info->var.bits_per_pixel == 8)  in tdfxfb_set_par()
731 		info->var.xres, info->var.yres, info->var.bits_per_pixel);  in tdfxfb_set_par()
749 	if (info->var.grayscale) {  in tdfxfb_setcolreg()
766 			rgbcol = (CNVT_TOHW(red, info->var.red.length) <<  in tdfxfb_setcolreg()
767 				  info->var.red.offset) |  in tdfxfb_setcolreg()
768 				(CNVT_TOHW(green, info->var.green.length) <<  in tdfxfb_setcolreg()
769 				 info->var.green.offset) |  in tdfxfb_setcolreg()
770 				(CNVT_TOHW(blue, info->var.blue.length) <<  in tdfxfb_setcolreg()
771 				 info->var.blue.offset) |  in tdfxfb_setcolreg()
772 				(CNVT_TOHW(transp, info->var.transp.length) <<  in tdfxfb_setcolreg()
773 				 info->var.transp.offset);  in tdfxfb_setcolreg()
779 		DPRINTK("bad depth %u\n", info->var.bits_per_pixel);  in tdfxfb_setcolreg()
824 static int tdfxfb_pan_display(struct fb_var_screeninfo *var,  in tdfxfb_pan_display()  argument
828 	u32 addr = var->yoffset * info->fix.line_length;  in tdfxfb_pan_display()
830 	if (nopan || var->xoffset)  in tdfxfb_pan_display()
847 	u32 bpp = info->var.bits_per_pixel;  in tdfxfb_fillrect()
891 	u32 bpp = info->var.bits_per_pixel;  in tdfxfb_copyarea()
950 	u32 bpp = info->var.bits_per_pixel;  in tdfxfb_imageblit()
1087 		int y = cursor->image.dy - info->var.yoffset;  in tdfxfb_cursor()
1480 	info->var.bits_per_pixel = 8;  in tdfxfb_probe()
1496 				fb_videomode_to_var(&info->var, m);  in tdfxfb_probe()
1498 				if (tdfxfb_check_var(&info->var, info) < 0)  in tdfxfb_probe()
1499 					info->var = tdfx_var;  in tdfxfb_probe()
1510 		err = fb_find_mode(&info->var, info, mode_option,  in tdfxfb_probe()
1512 				   NULL, info->var.bits_per_pixel);  in tdfxfb_probe()
1514 			info->var = tdfx_var;  in tdfxfb_probe()
1523 	lpitch = info->var.xres_virtual * ((info->var.bits_per_pixel + 7) >> 3);  in tdfxfb_probe()
1524 	info->var.yres_virtual = info->fix.smem_len / lpitch;  in tdfxfb_probe()
1525 	if (info->var.yres_virtual < info->var.yres)  in tdfxfb_probe()