1 /* $NetBSD: sticio.h,v 1.7 2024/02/09 22:08:36 andvar 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _TC_STICIO_H_ 33 #define _TC_STICIO_H_ 34 35 #include <sys/ioccom.h> 36 37 /* 38 * Buffer sizes. Image buffers (span buffers, really) must be able to hold 39 * 1280 32-bit pixels, even for the 8-bit boards. 40 */ 41 #define STIC_XCOMM_SIZE 4096 42 #define STIC_PACKET_SIZE 4096 43 #define STIC_IMGBUF_SIZE 1280*4 44 45 /* 46 * stic_xinfo: info about the board that can't be gleaned using the generic 47 * wscons interfaces. 48 */ 49 struct stic_xinfo { 50 int sxi_stampw; /* stamp width */ 51 int sxi_stamph; /* stamp height */ 52 int sxi_unit; /* control device unit (-1 == none) */ 53 u_int sxi_buf_size; /* total buffer size in bytes */ 54 u_int sxi_buf_phys; /* buffer PA (STIC address space) */ 55 u_int sxi_buf_pktoff; /* offset to packet buffers */ 56 u_int sxi_buf_pktcnt; /* packet buffer count */ 57 u_int sxi_buf_imgoff; /* offset to image buffers */ 58 }; 59 60 /* 61 * stic_xcomm: Xserver communication area. Used to communicate with the 62 * kernel or i860 firmware when performing packet queueing or other such 63 * funkiness. 64 */ 65 struct stic_xcomm { 66 u_int sxc_head; /* Xserver submit pointer */ 67 u_int sxc_tail; /* STIC execute pointer */ 68 u_int sxc_nreject; /* number of rejected STIC polls */ 69 u_int sxc_nstall; /* number of queue stalls */ 70 u_int sxc_busy; /* true if STIC is busy */ 71 u_int sxc_reserved[8]; /* reserved for future use */ 72 u_int sxc_done[16]; /* packet completion semaphores */ 73 }; 74 75 #ifdef _KERNEL 76 /* 77 * stic_xmap: a description of the area returned by mapping the board. 78 * sxm_xcomm and sxm_buf are physically contiguous and of variable size as a 79 * whole; the combined size is learnt from stic_xinfo::sxi_buf_size. 80 */ 81 struct stic_xmap { 82 u_int8_t sxm_stic[NBPG]; /* STIC registers */ 83 u_int8_t sxm_poll[0xc0000]; /* poll registers */ 84 u_int8_t sxm_xcomm[256 * 1024]; /* X comms area */ 85 }; 86 #endif 87 88 /* 89 * ioctl interface. 90 */ 91 #define STICIO_GXINFO _IOR('S', 0, struct stic_xinfo) 92 #define STICIO_RESET _IO('S', 1) 93 #define STICIO_START860 _IO('S', 2) /* PXG only, may disappear */ 94 #define STICIO_RESET860 _IO('S', 3) /* PXG only, may disappear */ 95 #define STICIO_STARTQ _IO('S', 4) /* currently PX only */ 96 #define STICIO_STOPQ _IO('S', 5) /* currently PX only */ 97 98 #endif /* !_TC_STICIO_H_ */ 99