video/fbdev/tridentfb.c

626 	if (info->var.bits_per_pixel == 8) {
648 	if (info->var.bits_per_pixel == 8) {
989 /* See if we can handle the video mode described in var */
990 static int tridentfb_check_var(struct fb_var_screeninfo *var,
994 	int bpp = var->bits_per_pixel;
999 	if (!var->pixclock)
1004 		bpp = var->bits_per_pixel = 32;
1010 	if (par->flatpanel && nativex && var->xres > nativex)
1013 	var->xres = (var->xres + 7) & ~0x7;
1014 	if (var->xres > var->xres_virtual)
1015 		var->xres_virtual = var->xres;
1016 	if (var->yres > var->yres_virtual)
1017 		var->yres_virtual = var->yres;
1018 	if (var->xres_virtual > 4095 || var->yres > 2048)
1021 	if (var->yres_virtual > 0xffff)
1023 	line_length = var->xres_virtual * bpp / 8;
1029 			var->xres_virtual = 512 * 8 / bpp;
1031 			var->xres_virtual = 1024 * 8 / bpp;
1033 			var->xres_virtual = 2048 * 8 / bpp;
1035 			var->xres_virtual = 4096 * 8 / bpp;
1037 			var->xres_virtual = 8192 * 8 / bpp;
1041 		line_length = var->xres_virtual * bpp / 8;
1045 	if (line_length * (var->yres_virtual - var->yres) > (4 << 20))
1046 		var->yres_virtual = ((4 << 20) / line_length) + var->yres;
1048 	if (line_length * var->yres_virtual > info->fix.smem_len)
1053 		var->red.offset = 0;
1054 		var->red.length = 8;
1055 		var->green = var->red;
1056 		var->blue = var->red;
1059 		var->red.offset = 11;
1060 		var->green.offset = 5;
1061 		var->blue.offset = 0;
1062 		var->red.length = 5;
1063 		var->green.length = 6;
1064 		var->blue.length = 5;
1067 		var->red.offset = 16;
1068 		var->green.offset = 8;
1069 		var->blue.offset = 0;
1070 		var->red.length = 8;
1071 		var->green.length = 8;
1072 		var->blue.length = 8;
1101 	if (PICOS2KHZ(var->pixclock) > ramdac)
1111 static int tridentfb_pan_display(struct fb_var_screeninfo *var,
1118 	offset = (var->xoffset + (var->yoffset * info->var.xres_virtual))
1119 		* info->var.bits_per_pixel / 32;
1136 	struct fb_var_screeninfo *var = &info->var;
1137 	int bpp = var->bits_per_pixel;
1142 	hdispend = var->xres / 8 - 1;
1143 	hsyncstart = (var->xres + var->right_margin) / 8;
1144 	hsyncend = (var->xres + var->right_margin + var->hsync_len) / 8;
1145 	htotal = (var->xres + var->left_margin + var->right_margin +
1146 		  var->hsync_len) / 8 - 5;
1150 	vdispend = var->yres - 1;
1151 	vsyncstart = var->yres + var->lower_margin;
1152 	vsyncend = vsyncstart + var->vsync_len;
1153 	vtotal = var->upper_margin + vsyncend - 2;
1157 	if (info->var.vmode & FB_VMODE_INTERLACED) {
1170 	if (var->sync & FB_SYNC_HOR_HIGH_ACT)
1172 	if (var->sync & FB_SYNC_VERT_HIGH_ACT)
1175 	if (par->flatpanel && var->xres < nativex) {
1240 //FIXME	if (info->var.vmode & FB_VMODE_DOUBLE) tmp |= 0x80;  /* double scan for 200 line modes */
1249 	tmp = (info->var.vmode & FB_VMODE_INTERLACED) ? 0x84 : 0x80;
1253 	if (info->var.vmode & FB_VMODE_INTERLACED)
1299 	vclk = PICOS2KHZ(info->var.pixclock);
1346 		set_number_of_lines(par, info->var.yres);
1347 	info->fix.line_length = info->var.xres_virtual * bpp / 8;
1351 		par->init_accel(par, info->var.xres_virtual, bpp);
1364 	int bpp = info->var.bits_per_pixel;
1626 	info->var.bits_per_pixel = 8;
1657 					fb_videomode_to_var(&info->var, m);
1658 					/* fill all other info->var's fields */
1659 					if (tridentfb_check_var(&info->var,
1672 		err = fb_find_mode(&info->var, info, mode_option,
1675 				   NULL, info->var.bits_per_pixel);
1693 	info->var.activate |= FB_ACTIVATE_NOW;
1702 	   info->node, info->fix.id, info->var.xres,
1703 	   info->var.yres, info->var.bits_per_pixel);