fbdev/matrox/matroxfb_base.c

162 	if (info && (info->fbcon.var.bits_per_pixel == minfo->fbcon.var.bits_per_pixel)
163 		 && (info->fbcon.var.xres_virtual == minfo->fbcon.var.xres_virtual)
164 		 && (info->fbcon.var.green.length == minfo->fbcon.var.green.length)
166 		switch (minfo->fbcon.var.bits_per_pixel) {
172 					mga_outl(0x3C28, pos + minfo->fbcon.var.xres_virtual * minfo->fbcon.var.bits_per_pixel / 8);
309 			   struct fb_var_screeninfo *var)
324 	minfo->fbcon.var.xoffset = var->xoffset;
325 	minfo->fbcon.var.yoffset = var->yoffset;
326 	pos = (minfo->fbcon.var.yoffset * minfo->fbcon.var.xres_virtual + minfo->fbcon.var.xoffset) * minfo->curr.final_bppShift / 32;
334 	vbl = (var->activate & FB_ACTIVATE_VBL) && (matroxfb_enable_irq(minfo, 0) == 0);
420 static int matroxfb_pan_display(struct fb_var_screeninfo *var,
426 	matrox_pan_var(minfo, var);
507 static int matroxfb_get_cmap_len(struct fb_var_screeninfo *var) {
511 	switch (var->bits_per_pixel) {
530 			       struct fb_var_screeninfo *var, int *visual,
552 	unsigned int bpp = var->bits_per_pixel;
569 	if (var->yres_virtual < var->yres)
570 		var->yres_virtual = var->yres;
571 	if (var->xres_virtual < var->xres)
572 		var->xres_virtual = var->xres;
574 	var->xres_virtual = matroxfb_pitch_adjust(minfo, var->xres_virtual, bpp);
575 	memlen = var->xres_virtual * bpp * var->yres_virtual / 8;
577 		var->yres_virtual = vramlen * 8 / (var->xres_virtual * bpp);
578 		memlen = var->xres_virtual * bpp * var->yres_virtual / 8;
588 			unsigned int m1 = linelen = var->xres_virtual * bpp / 8;
599 			if (var->yres_virtual > max_yres)
600 				var->yres_virtual = max_yres;
604 	if (var->yres_virtual > 32767)
605 		var->yres_virtual = 32767;
608 	if (var->yres_virtual < var->yres)
609 		var->yres = var->yres_virtual;
610 	if (var->xres_virtual < var->xres)
611 		var->xres = var->xres_virtual;
612 	if (var->xoffset + var->xres > var->xres_virtual)
613 		var->xoffset = var->xres_virtual - var->xres;
614 	if (var->yoffset + var->yres > var->yres_virtual)
615 		var->yoffset = var->yres_virtual - var->yres;
617 	if (bpp == 16 && var->green.length == 5) {
623 	var->clr.offset = rgbt->clr.offset;\
624 	var->clr.length = rgbt->clr.length
635 			var->transp.length, var->red.length, var->green.length, var->blue.length,
636 			var->transp.offset, var->red.offset, var->green.offset, var->blue.offset);
638 	*video_cmap_len = matroxfb_get_cmap_len(var);
639 	dprintk(KERN_INFO "requested %d*%d/%dbpp (%d*%d)\n", var->xres, var->yres, var->bits_per_pixel,
640 				var->xres_virtual, var->yres_virtual);
655 	 *  (according to the entries in the `var' structure). Return
662 	if (minfo->fbcon.var.grayscale) {
667 	red = CNVT_TOHW(red, minfo->fbcon.var.red.length);
668 	green = CNVT_TOHW(green, minfo->fbcon.var.green.length);
669 	blue = CNVT_TOHW(blue, minfo->fbcon.var.blue.length);
670 	transp = CNVT_TOHW(transp, minfo->fbcon.var.transp.length);
672 	switch (minfo->fbcon.var.bits_per_pixel) {
685 				(red << minfo->fbcon.var.red.offset)     |
686 				(green << minfo->fbcon.var.green.offset) |
687 				(blue << minfo->fbcon.var.blue.offset)   |
688 				(transp << minfo->fbcon.var.transp.offset); /* for 1:5:5:5 */
697 			(red   << minfo->fbcon.var.red.offset)   |
698 			(green << minfo->fbcon.var.green.offset) |
699 			(blue  << minfo->fbcon.var.blue.offset)  |
700 			(transp << minfo->fbcon.var.transp.offset);	/* 8:8:8:8 */
732 static int matroxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
743 	if ((err = matroxfb_decode_var(minfo, var, &visual, &cmap_len, &ydstorg)) != 0)
754 	struct fb_var_screeninfo *var;
763 	var = &info->var;
764 	if ((err = matroxfb_decode_var(minfo, var, &visual, &cmap_len, &ydstorg)) != 0)
771 	minfo->fbcon.fix.line_length = (var->xres_virtual * var->bits_per_pixel) >> 3;
779 		if (var->bits_per_pixel == 4)
782 			minfo->curr.ydstorg.pixels = (ydstorg * 8) / var->bits_per_pixel;
783 		minfo->curr.final_bppShift = matroxfb_get_final_bppShift(minfo, var->bits_per_pixel);
788 			matroxfb_var2my(var, &mt);
791 			switch (var->bits_per_pixel) {
812 			pos = (var->yoffset * var->xres_virtual + var->xoffset) * minfo->curr.final_bppShift / 32;
860 	if (vblank->vcount >= minfo->fbcon.var.yres)
1891 		struct fb_var_screeninfo var;
1901 		if (!mac_vmode_to_var(default_vmode, default_cmode, &var)) {
1902 			var.accel_flags = vesafb_defined.accel_flags;
1903 			var.xoffset = var.yoffset = 0;
1905 			vesafb_defined = var;
1921 	/* And put it into "current" var. Do NOT program hardware yet, or we'll not take over
1925 	minfo->fbcon.var = vesafb_defined;
1947 		/* We have to use FB_ACTIVATE_FORCE, as we had to put vesafb_defined to the fbcon.var