1231858Sbz/* $NetBSD: z8530var.h,v 1.8 2007/11/07 15:56:11 ad Exp $ */ 2231858Sbz 3231858Sbz/* 4231858Sbz * Copyright (c) 1992, 1993 5231858Sbz * The Regents of the University of California. All rights reserved. 6231858Sbz * 7231858Sbz * This software was developed by the Computer Systems Engineering group 8231858Sbz * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 9231858Sbz * contributed to Berkeley. 10231858Sbz * 11231858Sbz * All advertising materials mentioning features or use of this software 12231858Sbz * must display the following acknowledgement: 13231858Sbz * This product includes software developed by the University of 14231858Sbz * California, Lawrence Berkeley Laboratory. 15231858Sbz * 16231858Sbz * Redistribution and use in source and binary forms, with or without 17231858Sbz * modification, are permitted provided that the following conditions 18231858Sbz * are met: 19231858Sbz * 1. Redistributions of source code must retain the above copyright 20231858Sbz * notice, this list of conditions and the following disclaimer. 21231858Sbz * 2. Redistributions in binary form must reproduce the above copyright 22231858Sbz * notice, this list of conditions and the following disclaimer in the 23231858Sbz * documentation and/or other materials provided with the distribution. 24231858Sbz * 3. Neither the name of the University nor the names of its contributors 25231858Sbz * may be used to endorse or promote products derived from this software 26231858Sbz * without specific prior written permission. 27231858Sbz * 28231858Sbz * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29231858Sbz * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30231858Sbz * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31231858Sbz * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32231858Sbz * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33231858Sbz * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34231858Sbz * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35231858Sbz * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36231858Sbz * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37231858Sbz * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38232114Sbz * SUCH DAMAGE. 39231858Sbz * 40231858Sbz * @(#)zsvar.h 8.1 (Berkeley) 6/11/93 41231858Sbz */ 42231858Sbz 43231858Sbz/* 44231858Sbz * Copyright (c) 1994 Gordon W. Ross 45231858Sbz * 46231858Sbz * This software was developed by the Computer Systems Engineering group 47231858Sbz * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 48231858Sbz * contributed to Berkeley. 49231858Sbz * 50231858Sbz * All advertising materials mentioning features or use of this software 51231858Sbz * must display the following acknowledgement: 52231858Sbz * This product includes software developed by the University of 53231858Sbz * California, Lawrence Berkeley Laboratory. 54231858Sbz * 55231858Sbz * Redistribution and use in source and binary forms, with or without 56231858Sbz * modification, are permitted provided that the following conditions 57231858Sbz * are met: 58231858Sbz * 1. Redistributions of source code must retain the above copyright 59231858Sbz * notice, this list of conditions and the following disclaimer. 60231858Sbz * 2. Redistributions in binary form must reproduce the above copyright 61231858Sbz * notice, this list of conditions and the following disclaimer in the 62231858Sbz * documentation and/or other materials provided with the distribution. 63231858Sbz * 3. All advertising materials mentioning features or use of this software 64231858Sbz * must display the following acknowledgement: 65 * This product includes software developed by the University of 66 * California, Berkeley and its contributors. 67 * 4. Neither the name of the University nor the names of its contributors 68 * may be used to endorse or promote products derived from this software 69 * without specific prior written permission. 70 * 71 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 72 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 73 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 74 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 75 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 76 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 77 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 78 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 79 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 80 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 81 * SUCH DAMAGE. 82 * 83 * @(#)zsvar.h 8.1 (Berkeley) 6/11/93 84 */ 85 86/* 87 * XXX XXX XXX THIS DOES NOT WORK WITH MULTIPLE ATTACHMENTS!!! XXX XXX XXX 88 */ 89 90#include <dev/ic/z8530sc.h> 91 92struct zsc_softc { 93 device_t zsc_dev; /* required first: base device */ 94 struct zs_chanstate *zsc_cs[2]; /* channel A and B soft state */ 95 /* Machine-dependent part follows... */ 96 int zsc_addroffset; /* used as "cookie" to identify scc */ 97 void *zsc_sih; 98}; 99 100/* 101 * Functions to read and write individual registers in a channel. 102 * The ZS chip requires a 1.6 uSec. recovery time between accesses, 103 * and the Alpha TC hardware does NOT take care of this for you. 104 * The delay is now handled inside the chip access functions. 105 * These could be inlines, but with the delay, speed is moot. 106 */ 107 108u_int zs_read_reg(struct zs_chanstate *cs, u_int reg); 109u_int zs_read_csr(struct zs_chanstate *cs); 110u_int zs_read_data(struct zs_chanstate *cs); 111 112void zs_write_reg(struct zs_chanstate *cs, u_int reg, u_int val); 113void zs_write_csr(struct zs_chanstate *cs, u_int val); 114void zs_write_data(struct zs_chanstate *cs, u_int val); 115 116/* Interrupt priority for the SCC chip; needs to match ZSHARD_PRI. */ 117#define splzs() spltty() 118#define IPL_ZS IPL_TTY 119