349 static int sstfb_check_var(struct fb_var_screeninfo *var,  in sstfb_check_var()  argument
353 	int hSyncOff   = var->xres + var->right_margin + var->left_margin;  in sstfb_check_var()
354 	int vSyncOff   = var->yres + var->lower_margin + var->upper_margin;  in sstfb_check_var()
355 	int vBackPorch = var->left_margin, yDim = var->yres;  in sstfb_check_var()
356 	int vSyncOn    = var->vsync_len;  in sstfb_check_var()
360 	if (sst_calc_pll(PICOS2KHZ(var->pixclock), &freq, &par->pll)) {  in sstfb_check_var()
362 				PICOS2KHZ(var->pixclock));  in sstfb_check_var()
365 	var->pixclock = KHZ2PICOS(freq);  in sstfb_check_var()
367 	if (var->vmode & FB_VMODE_INTERLACED)  in sstfb_check_var()
369 	if (var->vmode & FB_VMODE_DOUBLE) {  in sstfb_check_var()
376 	switch (var->bits_per_pixel) {  in sstfb_check_var()
378 		var->bits_per_pixel = 16;  in sstfb_check_var()
381 		printk(KERN_ERR "sstfb: Unsupported bpp %d\n", var->bits_per_pixel);  in sstfb_check_var()
386 	if (var->xres <= 1 || yDim <= 0 || var->hsync_len <= 1  ||  in sstfb_check_var()
387 	    hSyncOff <= 1  || var->left_margin <= 2  || vSyncOn <= 0 ||  in sstfb_check_var()
394 		tiles_in_X = (var->xres + 63 ) / 64 * 2;		  in sstfb_check_var()
396 		if (var->xres  > POW2(11) || yDim >= POW2(11)) {  in sstfb_check_var()
398 			         var->xres, var->yres);  in sstfb_check_var()
402 		if (var->hsync_len > POW2(9) || hSyncOff > POW2(11) ||  in sstfb_check_var()
403 		    var->left_margin - 2 >= POW2(9) || vSyncOn >= POW2(13) ||  in sstfb_check_var()
411 		tiles_in_X = (var->xres + 63 ) / 64;  in sstfb_check_var()
413 		if (var->vmode) {  in sstfb_check_var()
415 				var->vmode);  in sstfb_check_var()
418 		if (var->xres > POW2(10) || var->yres >= POW2(10)) {  in sstfb_check_var()
420 			         var->xres, var->yres);  in sstfb_check_var()
423 		if (var->hsync_len > POW2(8) || hSyncOff - 1 > POW2(10) ||  in sstfb_check_var()
424 		    var->left_margin - 2 >= POW2(8) || vSyncOn >= POW2(12) ||  in sstfb_check_var()
435 	              * ((var->bits_per_pixel == 16) ? 2 : 4);  in sstfb_check_var()
442 	var->sync &= (FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT);  in sstfb_check_var()
443 	var->vmode &= (FB_VMODE_INTERLACED | FB_VMODE_DOUBLE);  in sstfb_check_var()
444 	var->xoffset = 0;  in sstfb_check_var()
445 	var->yoffset = 0;  in sstfb_check_var()
446 	var->height  = -1;  in sstfb_check_var()
447 	var->width   = -1;  in sstfb_check_var()
454 	switch (var->bits_per_pixel) {  in sstfb_check_var()
456 		var->red.length    = 5;  in sstfb_check_var()
457 		var->green.length  = 6;  in sstfb_check_var()
458 		var->blue.length   = 5;  in sstfb_check_var()
459 		var->transp.length = 0;  in sstfb_check_var()
461 		var->red.offset    = 11;  in sstfb_check_var()
462 		var->green.offset  = 5;  in sstfb_check_var()
463 		var->blue.offset   = 0;  in sstfb_check_var()
464 		var->transp.offset = 0;  in sstfb_check_var()
484 	par->hSyncOff	= info->var.xres + info->var.right_margin + info->var.left_margin;  in sstfb_set_par()
486 	par->yDim 	= info->var.yres;  in sstfb_set_par()
487 	par->vSyncOn 	= info->var.vsync_len;  in sstfb_set_par()
488 	par->vSyncOff	= info->var.yres + info->var.lower_margin + info->var.upper_margin;  in sstfb_set_par()
489 	par->vBackPorch = info->var.upper_margin;  in sstfb_set_par()
492 	sst_calc_pll(PICOS2KHZ(info->var.pixclock), &freq, &par->pll);  in sstfb_set_par()
494 	if (info->var.vmode & FB_VMODE_INTERLACED)  in sstfb_set_par()
496 	if (info->var.vmode & FB_VMODE_DOUBLE) {  in sstfb_set_par()
506 		par->tiles_in_X = (info->var.xres + 63 ) / 64 * 2;  in sstfb_set_par()
509 		par->tiles_in_X = (info->var.xres + 63 ) / 64;  in sstfb_set_par()
514 	           info->var.hsync_len, par->hSyncOff,  in sstfb_set_par()
518 	           info->var.left_margin, info->var.upper_margin,  in sstfb_set_par()
519 	           info->var.xres, info->var.yres, PICOS2KHZ(info->var.pixclock));  in sstfb_set_par()
531 	sst_write(BACKPORCH, par->vBackPorch << 16 | (info->var.left_margin - 2));  in sstfb_set_par()
532 	sst_write(VIDEODIMENSIONS, par->yDim << 16 | (info->var.xres - 1));  in sstfb_set_par()
533 	sst_write(HSYNC, (par->hSyncOff - 1) << 16 | (info->var.hsync_len - 1));  in sstfb_set_par()
543 	par->dac_sw.set_vidmod(info, info->var.bits_per_pixel);  in sstfb_set_par()
586 	switch (info->var.bits_per_pixel) {  in sstfb_set_par()
597 		if (info->var.vmode & FB_VMODE_INTERLACED)  in sstfb_set_par()
599 		if (info->var.vmode & FB_VMODE_DOUBLE)  in sstfb_set_par()
601 		if (info->var.sync & FB_SYNC_HOR_HIGH_ACT)  in sstfb_set_par()
603 		if (info->var.sync & FB_SYNC_VERT_HIGH_ACT)  in sstfb_set_par()
616 	switch (info->var.bits_per_pixel) {  in sstfb_set_par()
645 		            info->var.xres - 1, par->yDim - 1);  in sstfb_set_par()
647 		sst_write(CLIP_LEFT_RIGHT, info->var.xres);  in sstfb_set_par()
678 	red    >>= (16 - info->var.red.length);  in sstfb_setcolreg()
679 	green  >>= (16 - info->var.green.length);  in sstfb_setcolreg()
680 	blue   >>= (16 - info->var.blue.length);  in sstfb_setcolreg()
681 	transp >>= (16 - info->var.transp.length);  in sstfb_setcolreg()
682 	col = (red << info->var.red.offset)  in sstfb_setcolreg()
683 	    | (green << info->var.green.offset)  in sstfb_setcolreg()
684 	    | (blue  << info->var.blue.offset)  in sstfb_setcolreg()
685 	    | (transp << info->var.transp.offset);  in sstfb_setcolreg()
805 	sst_write(BLTCLIPX, info->var.xres);
806 	sst_write(BLTCLIPY, info->var.yres);
1410 	fb_find_mode(&info->var, info, mode_option, NULL, 0, NULL, 16);  in sstfb_probe()
1412 	if (sstfb_check_var(&info->var, info)) {  in sstfb_probe()