video/fbdev/fsl-diu-fb.c

624 static void adjust_aoi_size_position(struct fb_var_screeninfo *var,
634 	base_plane_width = data->fsl_diu_info[0].var.xres;
635 	base_plane_height = data->fsl_diu_info[0].var.yres;
652 		if (var->xres > base_plane_width)
653 			var->xres = base_plane_width;
654 		if ((mfbi->x_aoi_d + var->xres) > base_plane_width)
655 			mfbi->x_aoi_d = base_plane_width - var->xres;
661 		if (var->yres > available_height)
662 			var->yres = available_height;
663 		if ((mfbi->y_aoi_d + var->yres) > available_height)
664 			mfbi->y_aoi_d = available_height - var->yres;
669 		upper_aoi_height = data->fsl_diu_info[index-1].var.yres;
672 		if (var->xres > base_plane_width)
673 			var->xres = base_plane_width;
674 		if ((mfbi->x_aoi_d + var->xres) > base_plane_width)
675 			mfbi->x_aoi_d = base_plane_width - var->xres;
685 		if (var->yres > available_height)
686 			var->yres = available_height;
687 		if ((mfbi->y_aoi_d + var->yres) > base_plane_height)
688 			mfbi->y_aoi_d = base_plane_height - var->yres;
693  * Checks to see if the hardware supports the state requested by var passed
694  * in. This function does not alter the hardware state! If the var passed in
695  * is slightly off by what the hardware can support then we alter the var
699 static int fsl_diu_check_var(struct fb_var_screeninfo *var,
702 	if (var->xres_virtual < var->xres)
703 		var->xres_virtual = var->xres;
704 	if (var->yres_virtual < var->yres)
705 		var->yres_virtual = var->yres;
707 	if (var->xoffset + info->var.xres > info->var.xres_virtual)
708 		var->xoffset = info->var.xres_virtual - info->var.xres;
710 	if (var->yoffset + info->var.yres > info->var.yres_virtual)
711 		var->yoffset = info->var.yres_virtual - info->var.yres;
713 	if ((var->bits_per_pixel != 32) && (var->bits_per_pixel != 24) &&
714 	    (var->bits_per_pixel != 16))
715 		var->bits_per_pixel = default_bpp;
717 	switch (var->bits_per_pixel) {
719 		var->red.length = 5;
720 		var->red.offset = 11;
721 		var->red.msb_right = 0;
723 		var->green.length = 6;
724 		var->green.offset = 5;
725 		var->green.msb_right = 0;
727 		var->blue.length = 5;
728 		var->blue.offset = 0;
729 		var->blue.msb_right = 0;
731 		var->transp.length = 0;
732 		var->transp.offset = 0;
733 		var->transp.msb_right = 0;
736 		var->red.length = 8;
737 		var->red.offset = 0;
738 		var->red.msb_right = 0;
740 		var->green.length = 8;
741 		var->green.offset = 8;
742 		var->green.msb_right = 0;
744 		var->blue.length = 8;
745 		var->blue.offset = 16;
746 		var->blue.msb_right = 0;
748 		var->transp.length = 0;
749 		var->transp.offset = 0;
750 		var->transp.msb_right = 0;
753 		var->red.length = 8;
754 		var->red.offset = 16;
755 		var->red.msb_right = 0;
757 		var->green.length = 8;
758 		var->green.offset = 8;
759 		var->green.msb_right = 0;
761 		var->blue.length = 8;
762 		var->blue.offset = 0;
763 		var->blue.msb_right = 0;
765 		var->transp.length = 8;
766 		var->transp.offset = 24;
767 		var->transp.msb_right = 0;
772 	var->height = -1;
773 	var->width = -1;
774 	var->grayscale = 0;
777 	var->sync |= var->nonstd;
778 	var->nonstd |= var->sync;
780 	adjust_aoi_size_position(var, info);
787 	struct fb_var_screeninfo *var = &info->var;
791 	fix->line_length = var->xres_virtual * var->bits_per_pixel / 8;
801 	struct fb_var_screeninfo *var = &info->var;
832 	out_be32(&hw->disp_size, (var->yres << 16) | var->xres);
835 	temp = var->left_margin << 22 | /* BP_H */
836 	       var->hsync_len << 11 |   /* PW_H */
837 	       var->right_margin;       /* FP_H */
841 	temp = var->upper_margin << 22 | /* BP_V */
842 	       var->vsync_len << 11 |    /* PW_V  */
843 	       var->lower_margin;        /* FP_V  */
847 	diu_ops.set_pixel_clock(var->pixclock);
870 	u32 smem_len = info->fix.line_length * info->var.yres_virtual;
909 	struct fb_var_screeninfo *var = &info->var;
914 	ad->offset_xyi = cpu_to_le32((var->yoffset << 16) | var->xoffset);
1048 		yy = (cursor->image.dy - info->var.yoffset) & 0x7ff;
1049 		xx = (cursor->image.dx - info->var.xoffset) & 0x7ff;
1122  * in fb_info. It does not alter var in fb_info since we are using that
1123  * data. This means we depend on the data in var inside fb_info to be
1130 	struct fb_var_screeninfo *var = &info->var;
1140 	len = info->var.yres_virtual * info->fix.line_length;
1155 						       var->bits_per_pixel);
1157 		ad->pix_fmt = fsl_diu_get_pixel_format(var->bits_per_pixel);
1160 	ad->src_size_g_alpha = cpu_to_le32((var->yres_virtual << 12) |
1161 				var->xres_virtual) | mfbi->g_alpha;
1163 	ad->aoi_size 	= cpu_to_le32((var->yres << 16) | var->xres);
1164 	ad->offset_xyi = cpu_to_le32((var->yoffset << 16) | var->xoffset);
1205 	if (info->var.grayscale)
1218 			red = CNVT_TOHW(red, info->var.red.length);
1219 			green = CNVT_TOHW(green, info->var.green.length);
1220 			blue = CNVT_TOHW(blue, info->var.blue.length);
1221 			transp = CNVT_TOHW(transp, info->var.transp.length);
1223 			v = (red << info->var.red.offset) |
1224 			    (green << info->var.green.offset) |
1225 			    (blue << info->var.blue.offset) |
1226 			    (transp << info->var.transp.offset);
1239  * 'xoffset' and 'yoffset' fields of the 'var' structure. If the values
1242 static int fsl_diu_pan_display(struct fb_var_screeninfo *var,
1245 	if ((info->var.xoffset == var->xoffset) &&
1246 	    (info->var.yoffset == var->yoffset))
1249 	if (var->xoffset + info->var.xres > info->var.xres_virtual
1250 	    || var->yoffset + info->var.yres > info->var.yres_virtual)
1253 	info->var.xoffset = var->xoffset;
1254 	info->var.yoffset = var->yoffset;
1256 	if (var->vmode & FB_VMODE_YWRAP)
1257 		info->var.vmode |= FB_VMODE_YWRAP;
1259 		info->var.vmode &= ~FB_VMODE_YWRAP;
1311 		fsl_diu_check_var(&info->var, info);
1409 		fsl_diu_check_var(&info->var, info);
1475 	info->var.activate = FB_ACTIVATE_NOW;
1499 	rc = fb_find_mode(&info->var, info, aoi_mode, db, dbsize, NULL,
1513 		rc = fb_find_mode(&info->var, info, aoi_mode, fsl_diu_mode_db,
1539 		info->var.bits_per_pixel = default_bpp;
1540 		fb_videomode_to_var(&info->var, modedb);
1543 	if (fsl_diu_check_var(&info->var, info)) {