66 int fb_get_color_depth(struct fb_var_screeninfo *var,  in fb_get_color_depth()  argument
75 		if (var->green.length == var->blue.length &&  in fb_get_color_depth()
76 		    var->green.length == var->red.length &&  in fb_get_color_depth()
77 		    var->green.offset == var->blue.offset &&  in fb_get_color_depth()
78 		    var->green.offset == var->red.offset)  in fb_get_color_depth()
79 			depth = var->green.length;  in fb_get_color_depth()
81 			depth = var->green.length + var->red.length +  in fb_get_color_depth()
82 				var->blue.length;  in fb_get_color_depth()
166 fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var)  in fb_pan_display()  argument
169 	unsigned int yres = info->var.yres;  in fb_pan_display()
172 	if (var->yoffset > 0) {  in fb_pan_display()
173 		if (var->vmode & FB_VMODE_YWRAP) {  in fb_pan_display()
174 			if (!fix->ywrapstep || (var->yoffset % fix->ywrapstep))  in fb_pan_display()
178 		} else if (!fix->ypanstep || (var->yoffset % fix->ypanstep))  in fb_pan_display()
182 	if (var->xoffset > 0 && (!fix->xpanstep ||  in fb_pan_display()
183 				 (var->xoffset % fix->xpanstep)))  in fb_pan_display()
187 	    var->yoffset > info->var.yres_virtual - yres ||  in fb_pan_display()
188 	    var->xoffset > info->var.xres_virtual - info->var.xres)  in fb_pan_display()
191 	if ((err = info->fbops->fb_pan_display(var, info)))  in fb_pan_display()
193 	info->var.xoffset = var->xoffset;  in fb_pan_display()
194 	info->var.yoffset = var->yoffset;  in fb_pan_display()
195 	if (var->vmode & FB_VMODE_YWRAP)  in fb_pan_display()
196 		info->var.vmode |= FB_VMODE_YWRAP;  in fb_pan_display()
198 		info->var.vmode &= ~FB_VMODE_YWRAP;  in fb_pan_display()
203 static int fb_check_caps(struct fb_info *info, struct fb_var_screeninfo *var,  in fb_check_caps()  argument
213 	info->fbops->fb_get_caps(info, &fbcaps, var);  in fb_check_caps()
224 fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var)  in fb_set_var()  argument
233 	if (var->activate & FB_ACTIVATE_INV_MODE) {  in fb_set_var()
236 		fb_var_to_videomode(&mode1, var);  in fb_set_var()
237 		fb_var_to_videomode(&mode2, &info->var);  in fb_set_var()
238 		/* make sure we don't delete the videomode of current var */  in fb_set_var()
249 	if (!(var->activate & FB_ACTIVATE_FORCE) &&  in fb_set_var()
250 	    !memcmp(&info->var, var, sizeof(struct fb_var_screeninfo)))  in fb_set_var()
253 	activate = var->activate;  in fb_set_var()
259 	    var->grayscale > 1) {  in fb_set_var()
260 		if (var->red.offset     || var->green.offset    ||  in fb_set_var()
261 		    var->blue.offset    || var->transp.offset   ||  in fb_set_var()
262 		    var->red.length     || var->green.length    ||  in fb_set_var()
263 		    var->blue.length    || var->transp.length   ||  in fb_set_var()
264 		    var->red.msb_right  || var->green.msb_right ||  in fb_set_var()
265 		    var->blue.msb_right || var->transp.msb_right)  in fb_set_var()
270 		*var = info->var;  in fb_set_var()
275 	if (var->xres < 8 || var->yres < 8)  in fb_set_var()
279 	if (check_mul_overflow(var->xres, var->yres, &unused) ||  in fb_set_var()
280 	    check_mul_overflow(var->xres_virtual, var->yres_virtual, &unused))  in fb_set_var()
283 	ret = info->fbops->fb_check_var(var, info);  in fb_set_var()
289 	if (var->xres_virtual < var->xres ||  in fb_set_var()
290 	    var->yres_virtual < var->yres) {  in fb_set_var()
293 			var->xres_virtual, var->yres_virtual,  in fb_set_var()
294 			var->xres, var->yres);  in fb_set_var()
298 	if ((var->activate & FB_ACTIVATE_MASK) != FB_ACTIVATE_NOW)  in fb_set_var()
302 		ret = fb_check_caps(info, var, activate);  in fb_set_var()
308 	old_var = info->var;  in fb_set_var()
309 	info->var = *var;  in fb_set_var()
315 			info->var = old_var;  in fb_set_var()
323 	fb_pan_display(info, &info->var);  in fb_set_var()
325 	fb_var_to_videomode(&mode, &info->var);  in fb_set_var()
437 	fb_var_to_videomode(&mode, &fb_info->var);  in do_register_framebuffer()
651 	struct fb_var_screeninfo var = info->var;  in fb_new_modelist()  local
660 		fb_videomode_to_var(&var, m);  in fb_new_modelist()
661 		var.activate = FB_ACTIVATE_TEST;  in fb_new_modelist()
662 		err = fb_set_var(info, &var);  in fb_new_modelist()
663 		fb_var_to_videomode(&mode, &var);  in fb_new_modelist()