1 /* $NetBSD: sticio.h,v 1.1 2001/09/18 19:51:23 ad Exp $ */ 2 3 /*- 4 * Copyright (c) 1999, 2000, 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Andrew Doran. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #ifndef _TC_STICIO_H_ 40 #define _TC_STICIO_H_ 41 42 /* 43 * Buffer sizes. Image buffers (span buffers, really) must be able to hold 44 * 1280 32-bit pixels, even for the 8-bit boards. 45 */ 46 #define STIC_XCOMM_SIZE 4096 47 #define STIC_PACKET_SIZE 4096 48 #define STIC_IMGBUF_SIZE 1280*4 49 50 /* 51 * stic_xinfo: info about the board that can't be gleaned using the generic 52 * wscons interfaces. 53 */ 54 struct stic_xinfo { 55 int sxi_stampw; /* stamp width */ 56 int sxi_stamph; /* stamp height */ 57 int sxi_unit; /* control device unit (-1 == none) */ 58 u_int sxi_buf_size; /* total buffer size in bytes */ 59 u_int sxi_buf_phys; /* buffer PA (STIC address space) */ 60 u_int sxi_buf_pktoff; /* offset to packet buffers */ 61 u_int sxi_buf_pktcnt; /* packet buffer count */ 62 u_int sxi_buf_imgoff; /* offset to image buffers */ 63 }; 64 65 /* 66 * stic_xcomm: Xserver communication area. Used to communicate with the 67 * kernel or i860 firmware when performing packet queueing or other such 68 * funkiness. 69 */ 70 struct stic_xcomm { 71 u_int sxc_head; /* Xserver submit pointer */ 72 u_int sxc_tail; /* STIC execute pointer */ 73 u_int sxc_nreject; /* number of rejected STIC polls */ 74 u_int sxc_nstall; /* number of queue stalls */ 75 u_int sxc_busy; /* true if STIC is busy */ 76 u_int sxc_reserved[8]; /* reserved for future use */ 77 u_int sxc_done[16]; /* packet completion semaphores */ 78 }; 79 80 /* 81 * stic_xmap: a description of the area returned by mapping the board. 82 * sxm_xcomm and sxm_buf are physically contigious and of variable size as a 83 * whole; the combined size is learnt from stic_xinfo::sxi_buf_size. 84 */ 85 struct stic_xmap { 86 u_int8_t sxm_stic[NBPG]; /* STIC registers */ 87 u_int8_t sxm_poll[0xc0000]; /* poll registers */ 88 u_int8_t sxm_xcomm[256 * 1024]; /* X comms area */ 89 }; 90 91 /* 92 * ioctl interface. 93 */ 94 #define STICIO_GXINFO _IOR('S', 0, struct stic_xinfo) 95 #define STICIO_RESET _IO('S', 1) 96 #define STICIO_START860 _IO('S', 2) /* PXG only, may disappear */ 97 #define STICIO_RESET860 _IO('S', 3) /* PXG only, may disappear */ 98 #define STICIO_STARTQ _IO('S', 4) /* currently PX only */ 99 #define STICIO_STOPQ _IO('S', 5) /* currently PX only */ 100 101 #endif /* !_TC_STICIO_H_ */ 102