431 static int control_var_to_par(struct fb_var_screeninfo *var,  in control_var_to_par()  argument
442 	switch (var->bits_per_pixel) {  in control_var_to_par()
488 	par->xres = (var->xres + hstep) & ~hstep;  in control_var_to_par()
489 	par->vxres = (var->xres_virtual + hstep) & ~hstep;  in control_var_to_par()
490 	par->xoffset = (var->xoffset + hstep) & ~hstep;  in control_var_to_par()
495 	par->yres = var->yres;  in control_var_to_par()
496 	par->vyres = var->yres_virtual;  in control_var_to_par()
497 	par->yoffset = var->yoffset;  in control_var_to_par()
501 	par->sync = var->sync;  in control_var_to_par()
511 	pixclock = (var->pixclock < CONTROL_PIXCLOCK_MIN)? CONTROL_PIXCLOCK_MIN:  in control_var_to_par()
512 		   var->pixclock;  in control_var_to_par()
516 	hperiod = ((var->left_margin + par->xres + var->right_margin  in control_var_to_par()
517 		    + var->hsync_len) >> 1) - 2;  in control_var_to_par()
519 	hsblank = hssync - (var->right_margin >> 1);  in control_var_to_par()
520 	hesync = (var->hsync_len >> 1) - 1;  in control_var_to_par()
521 	heblank = (var->left_margin >> 1) + hesync;  in control_var_to_par()
523 	heq = var->hsync_len >> 2;  in control_var_to_par()
526 	vperiod = (var->vsync_len + var->lower_margin + par->yres  in control_var_to_par()
527 		   + var->upper_margin) << 1;  in control_var_to_par()
529 	vesync = (var->vsync_len << 1) - vperiod + vssync;  in control_var_to_par()
530 	veblank = (var->upper_margin << 1) + vesync;  in control_var_to_par()
531 	vsblank = vssync - (var->lower_margin << 1);  in control_var_to_par()
557 	if (mac_var_to_vmode(var, &par->vmode, &cmode))  in control_var_to_par()
568 static void control_par_to_var(struct fb_par_control *par, struct fb_var_screeninfo *var)  in control_par_to_var()  argument
574 	memset(var, 0, sizeof(*var));  in control_par_to_var()
575 	var->xres = par->xres;  in control_par_to_var()
576 	var->yres = par->yres;  in control_par_to_var()
577 	var->xres_virtual = par->vxres;  in control_par_to_var()
578 	var->yres_virtual = par->vyres;  in control_par_to_var()
579 	var->xoffset = par->xoffset;  in control_par_to_var()
580 	var->yoffset = par->yoffset;  in control_par_to_var()
585 		var->bits_per_pixel = 8;  in control_par_to_var()
586 		var->red.length = 8;  in control_par_to_var()
587 		var->green.length = 8;  in control_par_to_var()
588 		var->blue.length = 8;  in control_par_to_var()
591 		var->bits_per_pixel = 16;  in control_par_to_var()
592 		var->red.offset = 10;  in control_par_to_var()
593 		var->red.length = 5;  in control_par_to_var()
594 		var->green.offset = 5;  in control_par_to_var()
595 		var->green.length = 5;  in control_par_to_var()
596 		var->blue.length = 5;  in control_par_to_var()
599 		var->bits_per_pixel = 32;  in control_par_to_var()
600 		var->red.offset = 16;  in control_par_to_var()
601 		var->red.length = 8;  in control_par_to_var()
602 		var->green.offset = 8;  in control_par_to_var()
603 		var->green.length = 8;  in control_par_to_var()
604 		var->blue.length = 8;  in control_par_to_var()
605 		var->transp.offset = 24;  in control_par_to_var()
606 		var->transp.length = 8;  in control_par_to_var()
609 	var->height = -1;  in control_par_to_var()
610 	var->width = -1;  in control_par_to_var()
611 	var->vmode = FB_VMODE_NONINTERLACED;  in control_par_to_var()
613 	var->left_margin = (rv->heblank - rv->hesync) << 1;  in control_par_to_var()
614 	var->right_margin = (rv->hssync - rv->hsblank) << 1;  in control_par_to_var()
615 	var->hsync_len = (rv->hperiod + 2 - rv->hssync + rv->hesync) << 1;  in control_par_to_var()
617 	var->upper_margin = (rv->veblank - rv->vesync) >> 1;  in control_par_to_var()
618 	var->lower_margin = (rv->vssync - rv->vsblank) >> 1;  in control_par_to_var()
619 	var->vsync_len = (rv->vperiod - rv->vssync + rv->vesync) >> 1;  in control_par_to_var()
621 	var->sync = par->sync;  in control_par_to_var()
630 	var->pixclock = CONTROL_PIXCLOCK_BASE * par->regvals.clock_params[0];  in control_par_to_var()
631 	var->pixclock /= par->regvals.clock_params[1];  in control_par_to_var()
632 	var->pixclock >>= par->regvals.clock_params[2];  in control_par_to_var()
640 static int controlfb_check_var (struct fb_var_screeninfo *var, struct fb_info *info)  in controlfb_check_var()  argument
645 	err = control_var_to_par(var, &par, info);  in controlfb_check_var()
648 	control_par_to_var(&par, var);  in controlfb_check_var()
663 	if((err = control_var_to_par(&info->var, &par, info))) {  in controlfb_set_par()
680 static int controlfb_pan_display(struct fb_var_screeninfo *var,  in controlfb_pan_display()  argument
692 	xoffset = (var->xoffset + hstep) & ~hstep;  in controlfb_pan_display()
695 	    var->yoffset+par->yres > par->vyres)  in controlfb_pan_display()
698 	set_screen_start(xoffset, var->yoffset, p);  in controlfb_pan_display()
752 		if (info->var.accel_flags)  in controlfb_mmap()
851 	struct fb_var_screeninfo var;  in init_control()  local
882 	if (mac_vmode_to_var(vmode, cmode, &var) < 0) {  in init_control()
888 		if (mac_vmode_to_var(vmode, cmode, &var) < 0) {  in init_control()
896 	vyres = (p->total_vram - CTRLFB_OFF) / (var.xres << cmode);  in init_control()
897 	if (vyres > var.yres)  in init_control()
898 		var.yres_virtual = vyres;  in init_control()
901 	var.activate = FB_ACTIVATE_NOW;  in init_control()
902 	rc = fb_set_var(&p->info, &var);  in init_control()