diff options
Diffstat (limited to 'nx-X11/programs/Xserver/hw/sunLynx/btreg.h')
-rw-r--r-- | nx-X11/programs/Xserver/hw/sunLynx/btreg.h | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/nx-X11/programs/Xserver/hw/sunLynx/btreg.h b/nx-X11/programs/Xserver/hw/sunLynx/btreg.h deleted file mode 100644 index cca573cc6..000000000 --- a/nx-X11/programs/Xserver/hw/sunLynx/btreg.h +++ /dev/null @@ -1,81 +0,0 @@ -/* $Xorg: btreg.h,v 1.3 2000/08/17 19:48:36 cpqbld Exp $ */ -/* - * Copyright (c) 1993 - * The Regents of the University of California. All rights reserved. - * - * This software was developed by the Computer Systems Engineering group - * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and - * contributed to Berkeley. - * - * All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Lawrence Berkeley Laboratory. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)btreg.h 8.2 (Berkeley) 1/21/94 - */ -/* $NetBSD: btreg.h,v 1.2 1994/11/20 20:51:55 deraadt Exp $ */ -/* $XFree86: xc/programs/Xserver/hw/sunLynx/btreg.h,v 3.1 1996/12/27 06:51:31 dawes Exp $ */ - -/* - * Several Sun color frame buffers use some kind of Brooktree video - * DAC (e.g., the Bt458, -- in any case, Brooktree make the only - * decent color frame buffer chips). - * - * Color map control on these is a bit funky in a SPARCstation. - * To update the color map one would normally do byte writes, but - * the hardware takes longword writes. Since there are three - * registers for each color map entry (R, then G, then B), we have - * to set color 1 with a write to address 0 (setting 0's R/G/B and - * color 1's R) followed by a second write to address 1 (setting - * color 1's G/B and color 2's R/G). Software must therefore keep - * a copy of the current map. - * - * The colormap address register increments automatically, so the - * above write is done as: - * - * bt->bt_addr = 0; - * bt->bt_cmap = R0G0B0R1; - * bt->bt_cmap = G1B1R2G2; - * ... - * - * Yow! - * - * Bonus complication: on the cg6, only the top 8 bits of each 32 bit - * register matter, even though the cg3 takes all the bits from all - * bytes written to it. - */ -struct bt_regs { - u_int bt_addr; /* map address register */ - u_int bt_cmap; /* colormap data register */ - u_int bt_ctrl; /* control register */ - u_int bt_omap; /* overlay (cursor) map register */ -}; |