87 static int atafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info);
93 static int atafb_pan_display(struct fb_var_screeninfo *var,
388 	int (*decode_var)(struct fb_var_screeninfo *var,
390 	int (*encode_var)(struct fb_var_screeninfo *var,
396 	int (*pan_display)(struct fb_var_screeninfo *var,
616 static int tt_decode_var(struct fb_var_screeninfo *var, struct atafb_par *par)  in tt_decode_var()  argument
618 	int xres = var->xres;  in tt_decode_var()
619 	int yres = var->yres;  in tt_decode_var()
620 	int bpp = var->bits_per_pixel;  in tt_decode_var()
622 	int yres_virtual = var->yres_virtual;  in tt_decode_var()
662 		} else if (var->xres > sttt_xres || var->yres > st_yres) {  in tt_decode_var()
675 	if (var->sync & FB_SYNC_EXT)  in tt_decode_var()
684 	if (var->yoffset + yres > yres_virtual && yres_virtual)  in tt_decode_var()
687 	par->screen_base = screen_base + var->yoffset * linelen;  in tt_decode_var()
692 static int tt_encode_var(struct fb_var_screeninfo *var, struct atafb_par *par)  in tt_encode_var()  argument
695 	memset(var, 0, sizeof(struct fb_var_screeninfo));  in tt_encode_var()
696 	var->red.offset = 0;  in tt_encode_var()
697 	var->red.length = 4;  in tt_encode_var()
698 	var->red.msb_right = 0;  in tt_encode_var()
699 	var->grayscale = 0;  in tt_encode_var()
701 	var->pixclock = 31041;  in tt_encode_var()
702 	var->left_margin = 120;		/* these may be incorrect */  in tt_encode_var()
703 	var->right_margin = 100;  in tt_encode_var()
704 	var->upper_margin = 8;  in tt_encode_var()
705 	var->lower_margin = 16;  in tt_encode_var()
706 	var->hsync_len = 140;  in tt_encode_var()
707 	var->vsync_len = 30;  in tt_encode_var()
709 	var->height = -1;  in tt_encode_var()
710 	var->width = -1;  in tt_encode_var()
713 		var->sync = 0;  in tt_encode_var()
715 		var->sync = FB_SYNC_EXT;  in tt_encode_var()
719 		var->xres = sttt_xres / 2;  in tt_encode_var()
720 		var->xres_virtual = sttt_xres_virtual / 2;  in tt_encode_var()
721 		var->yres = st_yres / 2;  in tt_encode_var()
722 		var->bits_per_pixel = 4;  in tt_encode_var()
725 		var->xres = sttt_xres;  in tt_encode_var()
726 		var->xres_virtual = sttt_xres_virtual;  in tt_encode_var()
727 		var->yres = st_yres / 2;  in tt_encode_var()
728 		var->bits_per_pixel = 2;  in tt_encode_var()
731 		var->xres = sttt_xres;  in tt_encode_var()
732 		var->xres_virtual = sttt_xres_virtual;  in tt_encode_var()
733 		var->yres = st_yres;  in tt_encode_var()
734 		var->bits_per_pixel = 1;  in tt_encode_var()
737 		var->xres = sttt_xres / 2;  in tt_encode_var()
738 		var->xres_virtual = sttt_xres_virtual / 2;  in tt_encode_var()
739 		var->yres = tt_yres;  in tt_encode_var()
740 		var->bits_per_pixel = 8;  in tt_encode_var()
743 		var->xres = sttt_xres;  in tt_encode_var()
744 		var->xres_virtual = sttt_xres_virtual;  in tt_encode_var()
745 		var->yres = tt_yres;  in tt_encode_var()
746 		var->bits_per_pixel = 4;  in tt_encode_var()
749 		var->red.length = 0;  in tt_encode_var()
750 		var->xres = sttt_xres * 2;  in tt_encode_var()
751 		var->xres_virtual = sttt_xres_virtual * 2;  in tt_encode_var()
752 		var->yres = tt_yres * 2;  in tt_encode_var()
753 		var->bits_per_pixel = 1;  in tt_encode_var()
756 	var->blue = var->green = var->red;  in tt_encode_var()
757 	var->transp.offset = 0;  in tt_encode_var()
758 	var->transp.length = 0;  in tt_encode_var()
759 	var->transp.msb_right = 0;  in tt_encode_var()
760 	linelen = var->xres_virtual * var->bits_per_pixel / 8;  in tt_encode_var()
762 		var->yres_virtual = var->yres;  in tt_encode_var()
765 			var->yres_virtual = par->yres_virtual;  in tt_encode_var()
768 			var->yres_virtual = screen_len / linelen;  in tt_encode_var()
771 			var->yres_virtual = 2 * var->yres;  in tt_encode_var()
773 			var->yres_virtual = var->yres + hwscroll * 16;  in tt_encode_var()
775 	var->xoffset = 0;  in tt_encode_var()
777 		var->yoffset = (par->screen_base - screen_base) / linelen;  in tt_encode_var()
779 		var->yoffset = 0;  in tt_encode_var()
780 	var->nonstd = 0;  in tt_encode_var()
781 	var->activate = 0;  in tt_encode_var()
782 	var->vmode = FB_VMODE_NONINTERLACED;  in tt_encode_var()
917 static int falcon_decode_var(struct fb_var_screeninfo *var,  in falcon_decode_var()  argument
920 	int bpp = var->bits_per_pixel;  in falcon_decode_var()
921 	int xres = var->xres;  in falcon_decode_var()
922 	int yres = var->yres;  in falcon_decode_var()
923 	int xres_virtual = var->xres_virtual;  in falcon_decode_var()
924 	int yres_virtual = var->yres_virtual;  in falcon_decode_var()
994 		    var->xres > myvar->xres ||  in falcon_decode_var()
995 		    var->yres > myvar->yres)  in falcon_decode_var()
1049 	if (var->pixclock > 1)  in falcon_decode_var()
1050 		var->pixclock -= 1;  in falcon_decode_var()
1075 		if (var->pixclock > f32.t * plen)  in falcon_decode_var()
1080 		if (var->pixclock == 0) {  in falcon_decode_var()
1089 			left_margin = var->left_margin;  in falcon_decode_var()
1090 			right_margin = var->right_margin;  in falcon_decode_var()
1091 			hsync_len = var->hsync_len;  in falcon_decode_var()
1092 			upper_margin = var->upper_margin;  in falcon_decode_var()
1093 			lower_margin = var->lower_margin;  in falcon_decode_var()
1094 			vsync_len = var->vsync_len;  in falcon_decode_var()
1095 			if (var->vmode & FB_VMODE_INTERLACED) {  in falcon_decode_var()
1099 			} else if (var->vmode & FB_VMODE_DOUBLE) {  in falcon_decode_var()
1109 		if (var->pixclock == 0) {  in falcon_decode_var()
1140 				if (f25.t * i >= var->pixclock &&  in falcon_decode_var()
1145 				if (f32.t * i >= var->pixclock &&  in falcon_decode_var()
1150 				if (fext.t && fext.t * i >= var->pixclock &&  in falcon_decode_var()
1160 			left_margin = var->left_margin;  in falcon_decode_var()
1161 			right_margin = var->right_margin;  in falcon_decode_var()
1162 			hsync_len = var->hsync_len;  in falcon_decode_var()
1163 			upper_margin = var->upper_margin;  in falcon_decode_var()
1164 			lower_margin = var->lower_margin;  in falcon_decode_var()
1165 			vsync_len = var->vsync_len;  in falcon_decode_var()
1167 			if (var->vmode & FB_VMODE_INTERLACED) {  in falcon_decode_var()
1173 			} else if (var->vmode & FB_VMODE_DOUBLE) {  in falcon_decode_var()
1205 	if (var->sync & FB_SYNC_HOR_HIGH_ACT)  in falcon_decode_var()
1207 	if (var->sync & FB_SYNC_VERT_HIGH_ACT)  in falcon_decode_var()
1382 	if (var->yoffset + yres > yres_virtual && yres_virtual)  in falcon_decode_var()
1385 	par->screen_base = screen_base + var->yoffset * linelen;  in falcon_decode_var()
1393 static int falcon_encode_var(struct fb_var_screeninfo *var,  in falcon_encode_var()  argument
1402 	memset(var, 0, sizeof(struct fb_var_screeninfo));  in falcon_encode_var()
1404 	var->pixclock = hw->sync & 0x1 ? fext.t :  in falcon_encode_var()
1407 	var->height = -1;  in falcon_encode_var()
1408 	var->width = -1;  in falcon_encode_var()
1410 	var->sync = 0;  in falcon_encode_var()
1412 		var->sync |= FB_SYNC_HOR_HIGH_ACT;  in falcon_encode_var()
1414 		var->sync |= FB_SYNC_VERT_HIGH_ACT;  in falcon_encode_var()
1416 	var->vmode = FB_VMODE_NONINTERLACED;  in falcon_encode_var()
1418 		var->vmode |= FB_VMODE_INTERLACED;  in falcon_encode_var()
1420 		var->vmode |= FB_VMODE_DOUBLE;  in falcon_encode_var()
1427 	var->yres = hw->vde - hw->vdb;  in falcon_encode_var()
1428 	if (!(var->vmode & FB_VMODE_INTERLACED))  in falcon_encode_var()
1429 		var->yres >>= 1;  in falcon_encode_var()
1430 	if (var->vmode & FB_VMODE_DOUBLE)  in falcon_encode_var()
1431 		var->yres >>= 1;  in falcon_encode_var()
1442 		var->bits_per_pixel = 1;  in falcon_encode_var()
1444 		var->bits_per_pixel = 16;  in falcon_encode_var()
1446 		var->bits_per_pixel = 8;  in falcon_encode_var()
1448 		var->bits_per_pixel = 4;  in falcon_encode_var()
1450 		var->bits_per_pixel = 2;  in falcon_encode_var()
1452 		var->bits_per_pixel = 1;  in falcon_encode_var()
1454 	var->xres = hw->line_width * 16 / var->bits_per_pixel;  in falcon_encode_var()
1455 	var->xres_virtual = var->xres + hw->line_offset * 16 / var->bits_per_pixel;  in falcon_encode_var()
1457 		var->xres_virtual += 16;  in falcon_encode_var()
1459 	if (var->bits_per_pixel == 16) {  in falcon_encode_var()
1460 		var->red.offset = 11;  in falcon_encode_var()
1461 		var->red.length = 5;  in falcon_encode_var()
1462 		var->red.msb_right = 0;  in falcon_encode_var()
1463 		var->green.offset = 5;  in falcon_encode_var()
1464 		var->green.length = 6;  in falcon_encode_var()
1465 		var->green.msb_right = 0;  in falcon_encode_var()
1466 		var->blue.offset = 0;  in falcon_encode_var()
1467 		var->blue.length = 5;  in falcon_encode_var()
1468 		var->blue.msb_right = 0;  in falcon_encode_var()
1470 		var->red.offset = 0;  in falcon_encode_var()
1471 		var->red.length = hw->ste_mode ? 4 : 6;  in falcon_encode_var()
1472 		if (var->red.length > var->bits_per_pixel)  in falcon_encode_var()
1473 			var->red.length = var->bits_per_pixel;  in falcon_encode_var()
1474 		var->red.msb_right = 0;  in falcon_encode_var()
1475 		var->grayscale = 0;  in falcon_encode_var()
1476 		var->blue = var->green = var->red;  in falcon_encode_var()
1478 	var->transp.offset = 0;  in falcon_encode_var()
1479 	var->transp.length = 0;  in falcon_encode_var()
1480 	var->transp.msb_right = 0;  in falcon_encode_var()
1482 	linelen = var->xres_virtual * var->bits_per_pixel / 8;  in falcon_encode_var()
1485 			var->yres_virtual = par->yres_virtual;  in falcon_encode_var()
1488 			var->yres_virtual = screen_len / linelen;  in falcon_encode_var()
1491 			var->yres_virtual = 2 * var->yres;  in falcon_encode_var()
1493 			var->yres_virtual = var->yres + hwscroll * 16;  in falcon_encode_var()
1495 	var->xoffset = 0;		/* TODO change this */  in falcon_encode_var()
1505 		hde_off = ((128 / var->bits_per_pixel + 2) * plen);  in falcon_encode_var()
1507 			hdb_off = (64 + base_off + (128 / var->bits_per_pixel + 2) * plen)  in falcon_encode_var()
1510 			hdb_off = (base_off + (128 / var->bits_per_pixel + 18) * plen)  in falcon_encode_var()
1515 	var->left_margin = hdb_off + prescale * ((hw->hdb & 0x1ff) -  in falcon_encode_var()
1518 		var->right_margin = prescale * (hw->hht + 2 - hw->hde) - hde_off;  in falcon_encode_var()
1521 		var->right_margin = prescale * (hw->hht + 2 - hw->hbb);  in falcon_encode_var()
1522 	var->hsync_len = prescale * (hw->hht + 2 - hw->hss);  in falcon_encode_var()
1525 	var->upper_margin = hw->vdb / 2;	/* round down to full lines */  in falcon_encode_var()
1526 	var->lower_margin = (hw->vft + 1 - hw->vde + 1) / 2;	/* round up */  in falcon_encode_var()
1527 	var->vsync_len = (hw->vft + 1 - hw->vss + 1) / 2;	/* round up */  in falcon_encode_var()
1528 	if (var->vmode & FB_VMODE_INTERLACED) {  in falcon_encode_var()
1529 		var->upper_margin *= 2;  in falcon_encode_var()
1530 		var->lower_margin *= 2;  in falcon_encode_var()
1531 		var->vsync_len *= 2;  in falcon_encode_var()
1532 	} else if (var->vmode & FB_VMODE_DOUBLE) {  in falcon_encode_var()
1533 		var->upper_margin = (var->upper_margin + 1) / 2;  in falcon_encode_var()
1534 		var->lower_margin = (var->lower_margin + 1) / 2;  in falcon_encode_var()
1535 		var->vsync_len = (var->vsync_len + 1) / 2;  in falcon_encode_var()
1538 	var->pixclock *= plen;  in falcon_encode_var()
1539 	var->left_margin /= plen;  in falcon_encode_var()
1540 	var->right_margin /= plen;  in falcon_encode_var()
1541 	var->hsync_len /= plen;  in falcon_encode_var()
1543 	var->right_margin -= var->hsync_len;  in falcon_encode_var()
1544 	var->lower_margin -= var->vsync_len;  in falcon_encode_var()
1547 		var->yoffset = (par->screen_base - screen_base) / linelen;  in falcon_encode_var()
1549 		var->yoffset = 0;  in falcon_encode_var()
1550 	var->nonstd = 0;		/* what is this for? */  in falcon_encode_var()
1551 	var->activate = 0;  in falcon_encode_var()
1676 static int falcon_pan_display(struct fb_var_screeninfo *var,  in falcon_pan_display()  argument
1682 	int bpp = info->var.bits_per_pixel;  in falcon_pan_display()
1685 		var->xoffset = up(var->xoffset, 32);  in falcon_pan_display()
1687 		par->hw.falcon.xoffset = var->xoffset & 15;  in falcon_pan_display()
1690 		var->xoffset = up(var->xoffset, 2);  in falcon_pan_display()
1693 		(info->var.xres_virtual - info->var.xres) / 16;  in falcon_pan_display()
1696 	xoffset = var->xoffset - par->hw.falcon.xoffset;  in falcon_pan_display()
1699 	        (var->yoffset * info->var.xres_virtual + xoffset) * bpp / 8;  in falcon_pan_display()
1842 static int stste_decode_var(struct fb_var_screeninfo *var,  in stste_decode_var()  argument
1845 	int xres = var->xres;  in stste_decode_var()
1846 	int yres = var->yres;  in stste_decode_var()
1847 	int bpp = var->bits_per_pixel;  in stste_decode_var()
1849 	int yres_virtual = var->yres_virtual;  in stste_decode_var()
1882 	if (var->sync & FB_SYNC_EXT)  in stste_decode_var()
1891 	if (var->yoffset + yres > yres_virtual && yres_virtual)  in stste_decode_var()
1894 	par->screen_base = screen_base + var->yoffset * linelen;  in stste_decode_var()
1899 static int stste_encode_var(struct fb_var_screeninfo *var,  in stste_encode_var()  argument
1903 	memset(var, 0, sizeof(struct fb_var_screeninfo));  in stste_encode_var()
1904 	var->red.offset = 0;  in stste_encode_var()
1905 	var->red.length = ATARIHW_PRESENT(EXTD_SHIFTER) ? 4 : 3;  in stste_encode_var()
1906 	var->red.msb_right = 0;  in stste_encode_var()
1907 	var->grayscale = 0;  in stste_encode_var()
1909 	var->pixclock = 31041;  in stste_encode_var()
1910 	var->left_margin = 120;		/* these are incorrect */  in stste_encode_var()
1911 	var->right_margin = 100;  in stste_encode_var()
1912 	var->upper_margin = 8;  in stste_encode_var()
1913 	var->lower_margin = 16;  in stste_encode_var()
1914 	var->hsync_len = 140;  in stste_encode_var()
1915 	var->vsync_len = 30;  in stste_encode_var()
1917 	var->height = -1;  in stste_encode_var()
1918 	var->width = -1;  in stste_encode_var()
1921 		var->sync = 0;  in stste_encode_var()
1923 		var->sync = FB_SYNC_EXT;  in stste_encode_var()
1927 		var->xres = sttt_xres / 2;  in stste_encode_var()
1928 		var->yres = st_yres / 2;  in stste_encode_var()
1929 		var->bits_per_pixel = 4;  in stste_encode_var()
1932 		var->xres = sttt_xres;  in stste_encode_var()
1933 		var->yres = st_yres / 2;  in stste_encode_var()
1934 		var->bits_per_pixel = 2;  in stste_encode_var()
1937 		var->xres = sttt_xres;  in stste_encode_var()
1938 		var->yres = st_yres;  in stste_encode_var()
1939 		var->bits_per_pixel = 1;  in stste_encode_var()
1942 	var->blue = var->green = var->red;  in stste_encode_var()
1943 	var->transp.offset = 0;  in stste_encode_var()
1944 	var->transp.length = 0;  in stste_encode_var()
1945 	var->transp.msb_right = 0;  in stste_encode_var()
1946 	var->xres_virtual = sttt_xres_virtual;  in stste_encode_var()
1947 	linelen = var->xres_virtual * var->bits_per_pixel / 8;  in stste_encode_var()
1951 		var->yres_virtual = var->yres;  in stste_encode_var()
1954 			var->yres_virtual = par->yres_virtual;  in stste_encode_var()
1957 			var->yres_virtual = screen_len / linelen;  in stste_encode_var()
1960 			var->yres_virtual = 2 * var->yres;  in stste_encode_var()
1962 			var->yres_virtual = var->yres + hwscroll * 16;  in stste_encode_var()
1964 	var->xoffset = 0;  in stste_encode_var()
1966 		var->yoffset = (par->screen_base - screen_base) / linelen;  in stste_encode_var()
1968 		var->yoffset = 0;  in stste_encode_var()
1969 	var->nonstd = 0;  in stste_encode_var()
1970 	var->activate = 0;  in stste_encode_var()
1971 	var->vmode = FB_VMODE_NONINTERLACED;  in stste_encode_var()
2159 static int ext_decode_var(struct fb_var_screeninfo *var, struct atafb_par *par)  in ext_decode_var()  argument
2163 	if (var->bits_per_pixel > myvar->bits_per_pixel ||  in ext_decode_var()
2164 	    var->xres > myvar->xres ||  in ext_decode_var()
2165 	    var->xres_virtual > myvar->xres_virtual ||  in ext_decode_var()
2166 	    var->yres > myvar->yres ||  in ext_decode_var()
2167 	    var->xoffset > 0 ||  in ext_decode_var()
2168 	    var->yoffset > 0)  in ext_decode_var()
2175 static int ext_encode_var(struct fb_var_screeninfo *var, struct atafb_par *par)  in ext_encode_var()  argument
2177 	memset(var, 0, sizeof(struct fb_var_screeninfo));  in ext_encode_var()
2178 	var->red.offset = 0;  in ext_encode_var()
2179 	var->red.length = (external_pmode == -1) ? external_depth / 3 :  in ext_encode_var()
2181 	var->red.msb_right = 0;  in ext_encode_var()
2182 	var->grayscale = 0;  in ext_encode_var()
2184 	var->pixclock = 31041;  in ext_encode_var()
2185 	var->left_margin = 120;		/* these are surely incorrect */  in ext_encode_var()
2186 	var->right_margin = 100;  in ext_encode_var()
2187 	var->upper_margin = 8;  in ext_encode_var()
2188 	var->lower_margin = 16;  in ext_encode_var()
2189 	var->hsync_len = 140;  in ext_encode_var()
2190 	var->vsync_len = 30;  in ext_encode_var()
2192 	var->height = -1;  in ext_encode_var()
2193 	var->width = -1;  in ext_encode_var()
2195 	var->sync = 0;  in ext_encode_var()
2197 	var->xres = external_xres;  in ext_encode_var()
2198 	var->yres = external_yres;  in ext_encode_var()
2199 	var->xres_virtual = external_xres_virtual;  in ext_encode_var()
2200 	var->bits_per_pixel = external_depth;  in ext_encode_var()
2202 	var->blue = var->green = var->red;  in ext_encode_var()
2203 	var->transp.offset = 0;  in ext_encode_var()
2204 	var->transp.length = 0;  in ext_encode_var()
2205 	var->transp.msb_right = 0;  in ext_encode_var()
2206 	var->yres_virtual = var->yres;  in ext_encode_var()
2207 	var->xoffset = 0;  in ext_encode_var()
2208 	var->yoffset = 0;  in ext_encode_var()
2209 	var->nonstd = 0;  in ext_encode_var()
2210 	var->activate = 0;  in ext_encode_var()
2211 	var->vmode = FB_VMODE_NONINTERLACED;  in ext_encode_var()
2297 static int pan_display(struct fb_var_screeninfo *var, struct fb_info *info)  in pan_display()  argument
2302 	    (!ATARIHW_PRESENT(EXTD_SHIFTER) && var->xoffset))  in pan_display()
2304 	var->xoffset = up(var->xoffset, 16);  in pan_display()
2306 	        (var->yoffset * info->var.xres_virtual + var->xoffset)  in pan_display()
2307 	        * info->var.bits_per_pixel / 8;  in pan_display()
2387 static int do_fb_set_var(struct fb_var_screeninfo *var, int isactive)  in do_fb_set_var()  argument
2392 	err = fbhw->decode_var(var, &par);  in do_fb_set_var()
2395 	activate = var->activate;  in do_fb_set_var()
2396 	if (((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) && isactive)  in do_fb_set_var()
2398 	fbhw->encode_var(var, &par);  in do_fb_set_var()
2399 	var->activate = activate;  in do_fb_set_var()
2411 	err = fbhw->decode_var(&info->var, &par);  in atafb_get_fix()
2419 static int atafb_get_var(struct fb_var_screeninfo *var, struct fb_info *info)  in atafb_get_var()  argument
2424 	fbhw->encode_var(var, &par);  in atafb_get_var()
2434 	atafb_get_var(&info->var, info);  in atafb_set_disp()
2453 atafb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)  in atafb_pan_display()  argument
2455 	int xoffset = var->xoffset;  in atafb_pan_display()
2456 	int yoffset = var->yoffset;  in atafb_pan_display()
2459 	if (var->vmode & FB_VMODE_YWRAP) {  in atafb_pan_display()
2460 		if (yoffset < 0 || yoffset >= info->var.yres_virtual || xoffset)  in atafb_pan_display()
2463 		if (xoffset + info->var.xres > info->var.xres_virtual ||  in atafb_pan_display()
2464 		    yoffset + info->var.yres > info->var.yres_virtual)  in atafb_pan_display()
2469 		err = fbhw->pan_display(var, info);  in atafb_pan_display()
2475 	info->var.xoffset = xoffset;  in atafb_pan_display()
2476 	info->var.yoffset = yoffset;  in atafb_pan_display()
2478 	if (var->vmode & FB_VMODE_YWRAP)  in atafb_pan_display()
2479 		info->var.vmode |= FB_VMODE_YWRAP;  in atafb_pan_display()
2481 		info->var.vmode &= ~FB_VMODE_YWRAP;  in atafb_pan_display()
2511 	if (info->var.bits_per_pixel == 16) {  in atafb_fillrect()
2523 	x2 = x2 < info->var.xres_virtual ? x2 : info->var.xres_virtual;  in atafb_fillrect()
2524 	y2 = y2 < info->var.yres_virtual ? y2 : info->var.yres_virtual;  in atafb_fillrect()
2528 	if (info->var.bits_per_pixel == 1)  in atafb_fillrect()
2531 	else if (info->var.bits_per_pixel == 2)  in atafb_fillrect()
2534 	else if (info->var.bits_per_pixel == 4)  in atafb_fillrect()
2552 	if (info->var.bits_per_pixel == 16) {  in atafb_copyarea()
2563 	x2 = x2 < info->var.xres_virtual ? x2 : info->var.xres_virtual;  in atafb_copyarea()
2564 	y2 = y2 < info->var.yres_virtual ? y2 : info->var.yres_virtual;  in atafb_copyarea()
2576 	if (sx + width > info->var.xres_virtual ||  in atafb_copyarea()
2577 			sy + height > info->var.yres_virtual)  in atafb_copyarea()
2586 	if (info->var.bits_per_pixel == 1)  in atafb_copyarea()
2588 	else if (info->var.bits_per_pixel == 2)  in atafb_copyarea()
2590 	else if (info->var.bits_per_pixel == 4)  in atafb_copyarea()
2608 	if (info->var.bits_per_pixel == 16) {  in atafb_imageblit()
2623 	x2 = x2 < info->var.xres_virtual ? x2 : info->var.xres_virtual;  in atafb_imageblit()
2624 	y2 = y2 < info->var.yres_virtual ? y2 : info->var.yres_virtual;  in atafb_imageblit()
2638 			if (info->var.bits_per_pixel == 1)  in atafb_imageblit()
2642 			else if (info->var.bits_per_pixel == 2)  in atafb_imageblit()
2646 			else if (info->var.bits_per_pixel == 4)  in atafb_imageblit()
2660 			   info->var.bits_per_pixel);  in atafb_imageblit()
2723 static int atafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)  in atafb_check_var()  argument
2730 	err = fbhw->decode_var(var, &par);  in atafb_check_var()
2735 	fbhw->encode_var(var, &par);  in atafb_check_var()
2746 	fbhw->decode_var(&info->var, par);  in atafb_set_par()
2775 	struct fb_var_screeninfo var;  in check_default_par()  local
2780 		var = atafb_predefined[default_par - 1];  in check_default_par()
2781 		var.activate = FB_ACTIVATE_TEST;  in check_default_par()
2782 		if (do_fb_set_var(&var, 1))  in check_default_par()
2787 		var = atafb_predefined[detected_mode - 1]; /* autodetect */  in check_default_par()
2788 		var.activate = FB_ACTIVATE_TEST;  in check_default_par()
2789 		if (!do_fb_set_var(&var, 1))  in check_default_par()
2800 			var = atafb_predefined[default_par - 1];  in check_default_par()
2801 			var.activate = FB_ACTIVATE_TEST;  in check_default_par()
2802 			if (!do_fb_set_var(&var,1))  in check_default_par()
2806 	min_mem = var.xres_virtual * var.yres_virtual * var.bits_per_pixel / 8;  in check_default_par()
3208 	atafb_get_var(&fb_info.var, &fb_info);  in atafb_init()
3215 	if (!fb_find_mode(&fb_info.var, &fb_info, mode_option, atafb_modedb,  in atafb_init()
3217 			  fb_info.var.bits_per_pixel)) {  in atafb_init()
3226 	fb_alloc_cmap(&(fb_info.cmap), 1 << fb_info.var.bits_per_pixel, 0);  in atafb_init()
3230 	       fb_info.var.xres, fb_info.var.yres, fb_info.var.bits_per_pixel);  in atafb_init()
3231 	if ((fb_info.var.xres != fb_info.var.xres_virtual) ||  in atafb_init()
3232 	    (fb_info.var.yres != fb_info.var.yres_virtual))  in atafb_init()
3233 		printk("   virtual %dx%d\n", fb_info.var.xres_virtual,  in atafb_init()
3234 		       fb_info.var.yres_virtual);  in atafb_init()