video/fbdev/neofb.c

255 static int vgaHWInit(const struct fb_var_screeninfo *var,
258 	int hsync_end = var->xres + var->right_margin + var->hsync_len;
259 	int htotal = (hsync_end + var->left_margin) >> 3;
260 	int vsync_start = var->yres + var->lower_margin;
261 	int vsync_end = vsync_start + var->vsync_len;
262 	int vtotal = vsync_end + var->upper_margin;
266 	if (!(var->sync & FB_SYNC_HOR_HIGH_ACT))
269 	if (!(var->sync & FB_SYNC_VERT_HIGH_ACT))
285 	par->CRTC[1] = (var->xres >> 3) - 1;
286 	par->CRTC[2] = (var->xres >> 3) - 1;
288 	par->CRTC[4] = ((var->xres + var->right_margin) >> 3);
293 	    | (((var->yres - 1) & 0x100) >> 7)
295 	    | (((var->yres - 1) & 0x100) >> 5)
297 	    | (((var->yres - 1) & 0x200) >> 3)
300 	par->CRTC[9] = (((var->yres - 1) & 0x200) >> 4) | 0x40;
302 	if (var->vmode & FB_VMODE_DOUBLE)
313 	par->CRTC[18] = (var->yres - 1) & 0xFF;
314 	par->CRTC[19] = var->xres_virtual >> 4;
316 	par->CRTC[21] = (var->yres - 1) & 0xFF;
515 				      struct fb_var_screeninfo *var)
523 	switch (var->bits_per_pixel) {
526 		pitch = var->xres_virtual;
531 		pitch = var->xres_virtual * 2;
535 		pitch = var->xres_virtual * 3;
581 neofb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
589 	if (!var->pixclock || PICOS2KHZ(var->pixclock) > par->maxClock)
594             ((var->xres > par->NeoPanelWidth) ||
595 	     (var->yres > par->NeoPanelHeight))) {
598 		       var->xres, var->yres, par->NeoPanelWidth,
607 		switch (var->xres) {
609 			if (var->yres == 1024)
613 			if (var->yres == 768)
617 			if (var->yres == (par->libretto ? 480 : 600))
621 			if (var->yres == 480)
630 		       var->xres, var->yres);
634 	var->red.msb_right = 0;
635 	var->green.msb_right = 0;
636 	var->blue.msb_right = 0;
637 	var->transp.msb_right = 0;
639 	var->transp.offset = 0;
640 	var->transp.length = 0;
641 	switch (var->bits_per_pixel) {
643 		var->red.offset = 0;
644 		var->red.length = 8;
645 		var->green.offset = 0;
646 		var->green.length = 8;
647 		var->blue.offset = 0;
648 		var->blue.length = 8;
652 		var->red.offset = 11;
653 		var->red.length = 5;
654 		var->green.offset = 5;
655 		var->green.length = 6;
656 		var->blue.offset = 0;
657 		var->blue.length = 5;
661 		var->red.offset = 16;
662 		var->red.length = 8;
663 		var->green.offset = 8;
664 		var->green.length = 8;
665 		var->blue.offset = 0;
666 		var->blue.length = 8;
671 		var->transp.offset = 24;
672 		var->transp.length = 8;
673 		var->red.offset = 16;
674 		var->red.length = 8;
675 		var->green.offset = 8;
676 		var->green.length = 8;
677 		var->blue.offset = 0;
678 		var->blue.length = 8;
683 		       var->bits_per_pixel);
691 	if (var->xres_virtual < var->xres)
692 		var->xres_virtual = var->xres;
694 	memlen = var->xres_virtual * var->bits_per_pixel * var->yres_virtual >> 3;
697 		var->yres_virtual =  vramlen * 8 / (var->xres_virtual *
698 				   	var->bits_per_pixel);
699 		memlen = var->xres_virtual * var->bits_per_pixel *
700 				var->yres_virtual / 8;
705 	if (var->yres_virtual < var->yres)
706 		var->yres = var->yres_virtual;
707 	if (var->xoffset + var->xres > var->xres_virtual)
708 		var->xoffset = var->xres_virtual - var->xres;
709 	if (var->yoffset + var->yres > var->yres_virtual)
710 		var->yoffset = var->yres_virtual - var->yres;
712 	var->nonstd = 0;
713 	var->height = -1;
714 	var->width = -1;
716 	if (var->bits_per_pixel >= 24 || !par->neo2200)
717 		var->accel_flags &= ~FB_ACCELF_TEXT;
736 	vsync_start = info->var.yres + info->var.lower_margin;
737 	vtotal = vsync_start + info->var.vsync_len + info->var.upper_margin;
744 	if (vgaHWInit(&info->var, par))
753 	switch (info->var.bits_per_pixel) {
755 		par->CRTC[0x13] = info->var.xres_virtual >> 3;
756 		par->ExtCRTOffset = info->var.xres_virtual >> 11;
760 		par->CRTC[0x13] = info->var.xres_virtual >> 2;
761 		par->ExtCRTOffset = info->var.xres_virtual >> 10;
765 		par->CRTC[0x13] = (info->var.xres_virtual * 3) >> 3;
766 		par->ExtCRTOffset = (info->var.xres_virtual * 3) >> 11;
771 		par->CRTC[0x13] = info->var.xres_virtual >> 1;
772 		par->ExtCRTOffset = info->var.xres_virtual >> 9;
784 	    | (((info->var.yres - 1) & 0x400) >> 9)
813 	switch (info->var.xres) {
853 	    (info->var.xres != par->NeoPanelWidth)) {
854 		switch (info->var.xres) {
887 		if (info->var.xres == par->NeoPanelWidth) {
900 				      info->var.xres) >> 4) - 1;
903 				      info->var.yres) >> 1) - 2;
910 			switch (info->var.xres) {
940 	    neoFindMode(info->var.xres, info->var.yres,
941 			info->var.bits_per_pixel);
947 	neoCalcVCLK(info, par, PICOS2KHZ(info->var.pixclock));
1014 	switch (info->var.bits_per_pixel) {
1154 	    info->var.xres_virtual * (info->var.bits_per_pixel >> 3);
1161 			neo2200_accel_init(info, &info->var);
1172 static int neofb_pan_display(struct fb_var_screeninfo *var,
1182 	Base = (var->yoffset * info->var.xres_virtual + var->xoffset) >> 2;
1183 	Base *= (info->var.bits_per_pixel + 7) / 8;
1212 	if (fb->var.bits_per_pixel <= 8) {
1219 		switch (fb->var.bits_per_pixel) {
1366 	dst = rect->dx + rect->dy * info->var.xres_virtual;
1378 	switch (info->var.bits_per_pixel) {
1389 	writel(dst * ((info->var.bits_per_pixel + 7) >> 3),
1414 	src = sx * (info->var.bits_per_pixel >> 3) + sy*info->fix.line_length;
1415 	dst = dx * (info->var.bits_per_pixel >> 3) + dy*info->fix.line_length;
1444 		if (info->var.bits_per_pixel == 24 && image->width < 16) {
1454 	} else if (image->depth == info->var.bits_per_pixel) {
1463 	switch (info->var.bits_per_pixel) {
1484 	writel(((image->dx & 0xffff) * (info->var.bits_per_pixel >> 3) +
2057 	if (!fb_find_mode(&info->var, info, mode_option, NULL, 0,
2070 	h_sync = 1953125000 / info->var.pixclock;
2072 	    h_sync * 512 / (info->var.xres + info->var.left_margin +
2073 			    info->var.right_margin + info->var.hsync_len);
2075 	    h_sync / (info->var.yres + info->var.upper_margin +
2076 		      info->var.lower_margin + info->var.vsync_len);
2080 	       info->fix.smem_len >> 10, info->var.xres,
2081 	       info->var.yres, h_sync / 1000, h_sync % 1000, v_sync);