97 lines
3.6 KiB
C
97 lines
3.6 KiB
C
/* $NetBSD: sticio.h,v 1.5 2015/09/06 06:01:01 dholland Exp $ */
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/*-
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* Copyright (c) 1999, 2000, 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Andrew Doran.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _TC_STICIO_H_
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#define _TC_STICIO_H_
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#include <sys/ioccom.h>
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/*
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* Buffer sizes. Image buffers (span buffers, really) must be able to hold
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* 1280 32-bit pixels, even for the 8-bit boards.
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*/
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#define STIC_XCOMM_SIZE 4096
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#define STIC_PACKET_SIZE 4096
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#define STIC_IMGBUF_SIZE 1280*4
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/*
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* stic_xinfo: info about the board that can't be gleaned using the generic
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* wscons interfaces.
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*/
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struct stic_xinfo {
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int sxi_stampw; /* stamp width */
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int sxi_stamph; /* stamp height */
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int sxi_unit; /* control device unit (-1 == none) */
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u_int sxi_buf_size; /* total buffer size in bytes */
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u_int sxi_buf_phys; /* buffer PA (STIC address space) */
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u_int sxi_buf_pktoff; /* offset to packet buffers */
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u_int sxi_buf_pktcnt; /* packet buffer count */
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u_int sxi_buf_imgoff; /* offset to image buffers */
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};
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/*
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* stic_xcomm: Xserver communication area. Used to communicate with the
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* kernel or i860 firmware when performing packet queueing or other such
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* funkiness.
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*/
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struct stic_xcomm {
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u_int sxc_head; /* Xserver submit pointer */
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u_int sxc_tail; /* STIC execute pointer */
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u_int sxc_nreject; /* number of rejected STIC polls */
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u_int sxc_nstall; /* number of queue stalls */
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u_int sxc_busy; /* true if STIC is busy */
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u_int sxc_reserved[8]; /* reserved for future use */
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u_int sxc_done[16]; /* packet completion semaphores */
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};
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/*
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* stic_xmap: a description of the area returned by mapping the board.
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* sxm_xcomm and sxm_buf are physically contigious and of variable size as a
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* whole; the combined size is learnt from stic_xinfo::sxi_buf_size.
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*/
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struct stic_xmap {
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u_int8_t sxm_stic[NBPG]; /* STIC registers */
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u_int8_t sxm_poll[0xc0000]; /* poll registers */
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u_int8_t sxm_xcomm[256 * 1024]; /* X comms area */
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};
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/*
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* ioctl interface.
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*/
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#define STICIO_GXINFO _IOR('S', 0, struct stic_xinfo)
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#define STICIO_RESET _IO('S', 1)
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#define STICIO_START860 _IO('S', 2) /* PXG only, may disappear */
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#define STICIO_RESET860 _IO('S', 3) /* PXG only, may disappear */
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#define STICIO_STARTQ _IO('S', 4) /* currently PX only */
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#define STICIO_STOPQ _IO('S', 5) /* currently PX only */
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#endif /* !_TC_STICIO_H_ */
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