94 static int i810fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info);
871 static void i810_round_off(struct fb_var_screeninfo *var)  in i810_round_off()  argument
879 	xres = var->xres;  in i810_round_off()
880 	yres = var->yres;  in i810_round_off()
881 	vxres = var->xres_virtual;  in i810_round_off()
882 	vyres = var->yres_virtual;  in i810_round_off()
884 	var->bits_per_pixel += 7;  in i810_round_off()
885 	var->bits_per_pixel &= ~7;  in i810_round_off()
887 	if (var->bits_per_pixel < 8)  in i810_round_off()
888 		var->bits_per_pixel = 8;  in i810_round_off()
889 	if (var->bits_per_pixel > 32)   in i810_round_off()
890 		var->bits_per_pixel = 32;  in i810_round_off()
911 	if (var->bits_per_pixel == 32)  in i810_round_off()
912 		var->accel_flags = 0;  in i810_round_off()
915 	var->left_margin = (var->left_margin + 4) & ~7;  in i810_round_off()
916 	var->right_margin = (var->right_margin + 4) & ~7;  in i810_round_off()
917 	var->hsync_len = (var->hsync_len + 4) & ~7;  in i810_round_off()
919 	if (var->vmode & FB_VMODE_INTERLACED) {  in i810_round_off()
920 		if (!((yres + var->upper_margin + var->vsync_len +   in i810_round_off()
921 		       var->lower_margin) & 1))  in i810_round_off()
922 			var->upper_margin++;  in i810_round_off()
925 	var->xres = xres;  in i810_round_off()
926 	var->yres = yres;  in i810_round_off()
927 	var->xres_virtual = vxres;  in i810_round_off()
928 	var->yres_virtual = vyres;  in i810_round_off()
940 static void set_color_bitfields(struct fb_var_screeninfo *var)  in set_color_bitfields()  argument
942 	switch (var->bits_per_pixel) {  in set_color_bitfields()
944 		var->red.offset = 0;  in set_color_bitfields()
945 		var->red.length = 8;  in set_color_bitfields()
946 		var->green.offset = 0;  in set_color_bitfields()
947 		var->green.length = 8;  in set_color_bitfields()
948 		var->blue.offset = 0;  in set_color_bitfields()
949 		var->blue.length = 8;  in set_color_bitfields()
950 		var->transp.offset = 0;  in set_color_bitfields()
951 		var->transp.length = 0;  in set_color_bitfields()
954 		var->green.length = (var->green.length == 5) ? 5 : 6;  in set_color_bitfields()
955 		var->red.length = 5;  in set_color_bitfields()
956 		var->blue.length = 5;  in set_color_bitfields()
957 		var->transp.length = 6 - var->green.length;  in set_color_bitfields()
958 		var->blue.offset = 0;  in set_color_bitfields()
959 		var->green.offset = 5;  in set_color_bitfields()
960 		var->red.offset = 5 + var->green.length;  in set_color_bitfields()
961 		var->transp.offset =  (5 + var->red.offset) & 15;  in set_color_bitfields()
965 		var->red.offset = 16;  in set_color_bitfields()
966 		var->red.length = 8;  in set_color_bitfields()
967 		var->green.offset = 8;  in set_color_bitfields()
968 		var->green.length = 8;  in set_color_bitfields()
969 		var->blue.offset = 0;  in set_color_bitfields()
970 		var->blue.length = 8;  in set_color_bitfields()
971 		var->transp.length = var->bits_per_pixel - 24;  in set_color_bitfields()
972 		var->transp.offset = (var->transp.length) ? 24 : 0;  in set_color_bitfields()
975 	var->red.msb_right = 0;  in set_color_bitfields()
976 	var->green.msb_right = 0;  in set_color_bitfields()
977 	var->blue.msb_right = 0;  in set_color_bitfields()
978 	var->transp.msb_right = 0;  in set_color_bitfields()
991 static int i810_check_params(struct fb_var_screeninfo *var,   in i810_check_params()  argument
996 	u32 vyres = var->yres_virtual, vxres = var->xres_virtual;  in i810_check_params()
1001 	line_length = get_line_length(par, vxres, var->bits_per_pixel);  in i810_check_params()
1006 		if (vyres < var->yres) {  in i810_check_params()
1007 			vyres = info->var.yres;  in i810_check_params()
1009 			vxres /= var->bits_per_pixel >> 3;  in i810_check_params()
1011 						      var->bits_per_pixel);  in i810_check_params()
1012 			vidmem = line_length * info->var.yres;  in i810_check_params()
1013 			if (vxres < var->xres) {  in i810_check_params()
1018 				       var->bits_per_pixel);  in i810_check_params()
1024 	var->xres_virtual = vxres;  in i810_check_params()
1025 	var->yres_virtual = vyres;  in i810_check_params()
1030 	switch (var->bits_per_pixel) {  in i810_check_params()
1045 	if (!fb_validate_mode(var, info))  in i810_check_params()
1050 	    !fb_get_mode(FB_MAXTIMINGS, 0, var, info))  in i810_check_params()
1056 		mode = fb_find_best_mode(var, &info->modelist);  in i810_check_params()
1058 			fb_videomode_to_var(var, mode);  in i810_check_params()
1064 		if (fb_get_mode(FB_MAXTIMINGS, 0, var, info)) {  in i810_check_params()
1103     	switch (info->var.bits_per_pixel) {  in encode_fix()
1110 		if (info->var.nonstd)  in encode_fix()
1136 static void decode_var(const struct fb_var_screeninfo *var,   in decode_var()  argument
1141 	xres = var->xres;  in decode_var()
1142 	yres = var->yres;  in decode_var()
1143 	vxres = var->xres_virtual;  in decode_var()
1144 	vyres = var->yres_virtual;  in decode_var()
1146 	switch (var->bits_per_pixel) {  in decode_var()
1154 		if (var->green.length == 5)  in decode_var()
1175 	if (var->nonstd && var->bits_per_pixel != 8)  in decode_var()
1178 	i810_calc_dclk(var->pixclock, &par->regs.M,   in decode_var()
1180 	i810fb_encode_registers(var, par, xres, yres);  in decode_var()
1182 	par->watermark = i810_get_watermark(var, par);  in decode_var()
1183 	par->pitch = get_line_length(par, vxres, var->bits_per_pixel);  in decode_var()
1207 		if ((info->var.green.length == 5 && regno > 31) ||  in i810fb_getcolreg()
1208 		    (info->var.green.length == 6 && regno > 63))  in i810fb_getcolreg()
1216 	    info->var.green.length == 5)   in i810fb_getcolreg()
1220 		 info->var.green.length == 6) {  in i810fb_getcolreg()
1293 		if ((info->var.green.length == 5 && regno > 31) ||  in i810fb_setcolreg()
1294 		    (info->var.green.length == 6 && regno > 63))  in i810fb_setcolreg()
1298 	if (info->var.grayscale)  in i810fb_setcolreg()
1306 	    info->var.green.length == 5) {  in i810fb_setcolreg()
1311 		 info->var.green.length == 6) {  in i810fb_setcolreg()
1332 		switch (info->var.bits_per_pixel) {  in i810fb_setcolreg()
1335 				if (info->var.green.length == 5)   in i810fb_setcolreg()
1344 				if (info->var.green.length == 5) {  in i810fb_setcolreg()
1376 static int i810fb_pan_display(struct fb_var_screeninfo *var,   in i810fb_pan_display()  argument
1382 	total = var->xoffset * par->depth +   in i810fb_pan_display()
1383 		var->yoffset * info->fix.line_length;  in i810fb_pan_display()
1438 	decode_var(&info->var, par);  in i810fb_set_par()
1443 	if (info->var.accel_flags && !(par->dev_flags & LOCKUP)) {  in i810fb_set_par()
1455 static int i810fb_check_var(struct fb_var_screeninfo *var,   in i810fb_check_var()  argument
1461 		var->vmode &= ~FB_VMODE_MASK;  in i810fb_check_var()
1462 		var->vmode |= FB_VMODE_NONINTERLACED;  in i810fb_check_var()
1464 	if (var->vmode & FB_VMODE_DOUBLE) {  in i810fb_check_var()
1465 		var->vmode &= ~FB_VMODE_MASK;  in i810fb_check_var()
1466 		var->vmode |= FB_VMODE_NONINTERLACED;  in i810fb_check_var()
1469 	i810_round_off(var);  in i810fb_check_var()
1470 	if ((err = i810_check_params(var, info)))  in i810fb_check_var()
1473 	i810fb_fill_var_timings(var);  in i810fb_check_var()
1474 	set_color_bitfields(var);  in i810fb_check_var()
1499 		tmp = (cursor->image.dx - info->var.xoffset) & 0xffff;  in i810fb_cursor()
1500 		tmp |= (cursor->image.dy - info->var.yoffset) << 16;  in i810fb_cursor()
1787 		info->var.xres = xres;  in i810_init_defaults()
1789 		info->var.xres = 640;  in i810_init_defaults()
1792 		info->var.yres = yres;  in i810_init_defaults()
1794 		info->var.yres = 480;  in i810_init_defaults()
1797 		vyres = (vram << 20)/(info->var.xres*bpp >> 3);  in i810_init_defaults()
1799 	info->var.yres_virtual = vyres;  in i810_init_defaults()
1800 	info->var.bits_per_pixel = bpp;  in i810_init_defaults()
1803 		info->var.nonstd = 1;  in i810_init_defaults()
1806 		info->var.accel_flags = 1;  in i810_init_defaults()
1899 	struct fb_var_screeninfo var;  in i810fb_find_init_mode()  local
1910 	var = info->var;  in i810fb_find_init_mode()
1934 			if ((m = fb_find_best_mode(&var, &info->modelist))) {  in i810fb_find_init_mode()
1946 		fb_videomode_to_var(&var, &mode);  in i810fb_find_init_mode()
1950 		fb_find_mode(&var, info, mode_option, specs->modedb,  in i810fb_find_init_mode()
1952 			     info->var.bits_per_pixel);  in i810fb_find_init_mode()
1954 	info->var = var;  in i810fb_find_init_mode()
2055 	if ((err = info->fbops->fb_check_var(&info->var, info))) {  in i810fb_init_pci()
2060 	fb_var_to_videomode(&mode, &info->var);  in i810fb_init_pci()
2073 	pixclock = 1000000000/(info->var.pixclock);  in i810fb_init_pci()
2075 	hfreq = pixclock/(info->var.xres + info->var.left_margin +   in i810fb_init_pci()
2076 			  info->var.hsync_len + info->var.right_margin);  in i810fb_init_pci()
2077 	vfreq = hfreq/(info->var.yres + info->var.upper_margin +  in i810fb_init_pci()
2078 		       info->var.vsync_len + info->var.lower_margin);  in i810fb_init_pci()
2089 	       info->monspecs.vfmax, info->var.xres,   in i810fb_init_pci()
2090 	       info->var.yres, info->var.bits_per_pixel, vfreq);  in i810fb_init_pci()