fbdev/aty/aty128fb.c

464 static int aty128fb_check_var(struct fb_var_screeninfo *var,
469 static int aty128fb_pan_display(struct fb_var_screeninfo *var,
479 static int aty128_encode_var(struct fb_var_screeninfo *var,
481 static int aty128_decode_var(struct fb_var_screeninfo *var,
1030 static int aty128_var_to_crtc(const struct fb_var_screeninfo *var,
1042 	xres = var->xres;
1043 	yres = var->yres;
1044 	vxres   = var->xres_virtual;
1045 	vyres   = var->yres_virtual;
1046 	xoffset = var->xoffset;
1047 	yoffset = var->yoffset;
1048 	bpp   = var->bits_per_pixel;
1049 	left  = var->left_margin;
1050 	right = var->right_margin;
1051 	upper = var->upper_margin;
1052 	lower = var->lower_margin;
1053 	hslen = var->hsync_len;
1054 	vslen = var->vsync_len;
1055 	sync  = var->sync;
1056 	vmode = var->vmode;
1061 		depth = (var->green.length == 6) ? 16 : 15;
1142 	if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW)
1158 static int aty128_pix_width_to_var(int pix_width, struct fb_var_screeninfo *var)
1162 	var->red.msb_right = 0;
1163 	var->green.msb_right = 0;
1164 	var->blue.offset = 0;
1165 	var->blue.msb_right = 0;
1166 	var->transp.offset = 0;
1167 	var->transp.length = 0;
1168 	var->transp.msb_right = 0;
1171 		var->bits_per_pixel = 8;
1172 		var->red.offset = 0;
1173 		var->red.length = 8;
1174 		var->green.offset = 0;
1175 		var->green.length = 8;
1176 		var->blue.length = 8;
1179 		var->bits_per_pixel = 16;
1180 		var->red.offset = 10;
1181 		var->red.length = 5;
1182 		var->green.offset = 5;
1183 		var->green.length = 5;
1184 		var->blue.length = 5;
1187 		var->bits_per_pixel = 16;
1188 		var->red.offset = 11;
1189 		var->red.length = 5;
1190 		var->green.offset = 5;
1191 		var->green.length = 6;
1192 		var->blue.length = 5;
1195 		var->bits_per_pixel = 24;
1196 		var->red.offset = 16;
1197 		var->red.length = 8;
1198 		var->green.offset = 8;
1199 		var->green.length = 8;
1200 		var->blue.length = 8;
1203 		var->bits_per_pixel = 32;
1204 		var->red.offset = 16;
1205 		var->red.length = 8;
1206 		var->green.offset = 8;
1207 		var->green.length = 8;
1208 		var->blue.length = 8;
1209 		var->transp.offset = 24;
1210 		var->transp.length = 8;
1222 			      struct fb_var_screeninfo *var)
1257 	aty128_pix_width_to_var(pix_width, var);
1259 	var->xres = xres;
1260 	var->yres = yres;
1261 	var->xres_virtual = crtc->vxres;
1262 	var->yres_virtual = crtc->vyres;
1263 	var->xoffset = crtc->xoffset;
1264 	var->yoffset = crtc->yoffset;
1265 	var->left_margin  = left;
1266 	var->right_margin = right;
1267 	var->upper_margin = upper;
1268 	var->lower_margin = lower;
1269 	var->hsync_len = hslen;
1270 	var->vsync_len = vslen;
1271 	var->sync  = sync;
1272 	var->vmode = FB_VMODE_NONINTERLACED;
1406 			     struct fb_var_screeninfo *var)
1408 	var->pixclock = 100000000 / pll->vclk;
1488 	if ((err = aty128_decode_var(&info->var, par)) != 0)
1552 static int aty128_decode_var(struct fb_var_screeninfo *var,
1560 	if ((err = aty128_var_to_crtc(var, &crtc, par)))
1563 	if ((err = aty128_var_to_pll(var->pixclock, &pll, par)))
1572 	par->accel_flags = var->accel_flags;
1578 static int aty128_encode_var(struct fb_var_screeninfo *var,
1583 	if ((err = aty128_crtc_to_var(&par->crtc, var)))
1586 	if ((err = aty128_pll_to_var(&par->pll, var)))
1589 	var->nonstd = 0;
1590 	var->activate = 0;
1592 	var->height = -1;
1593 	var->width = -1;
1594 	var->accel_flags = par->accel_flags;
1600 static int aty128fb_check_var(struct fb_var_screeninfo *var,
1607 	if ((err = aty128_decode_var(var, &par)) != 0)
1609 	aty128_encode_var(var, &par);
1617 static int aty128fb_pan_display(struct fb_var_screeninfo *var,
1628 	xoffset = (var->xoffset +7) & ~7;
1629 	yoffset = var->yoffset;
1900 	struct fb_var_screeninfo var;
1932 	var = default_var;
1950 			if (!mac_find_mode(&var, info, mode_option, 8))
1951 				var = default_var;
1986 			if (mac_vmode_to_var(default_vmode, default_cmode, &var))
1987 				var = default_var;
1993 			if (fb_find_mode(&var, info, mode_option, NULL,
1995 				var = default_var;
1998 	var.accel_flags &= ~FB_ACCELF_TEXT;
1999 //	var.accel_flags |= FB_ACCELF_TEXT;/* FIXME Will add accel later */
2001 	if (aty128fb_check_var(&var, info)) {
2017 	info->var = var;
2020 	var.activate = FB_ACTIVATE_NOW;
2229  *  entries in the var structure). Return != 0 for invalid regno.
2460 	fb_pan_display(info, &info->var);