1 /* $OpenBSD: z8530var.h,v 1.9 2024/03/29 21:17:13 miod Exp $ */ 2 /* $NetBSD: z8530var.h,v 1.4 2000/11/08 23:41:42 eeh Exp $ */ 3 4 /* 5 * Copyright (c) 1992, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This software was developed by the Computer Systems Engineering group 9 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 10 * contributed to Berkeley. 11 * 12 * All advertising materials mentioning features or use of this software 13 * must display the following acknowledgement: 14 * This product includes software developed by the University of 15 * California, Lawrence Berkeley Laboratory. 16 * 17 * Redistribution and use in source and binary forms, with or without 18 * modification, are permitted provided that the following conditions 19 * are met: 20 * 1. Redistributions of source code must retain the above copyright 21 * notice, this list of conditions and the following disclaimer. 22 * 2. Redistributions in binary form must reproduce the above copyright 23 * notice, this list of conditions and the following disclaimer in the 24 * documentation and/or other materials provided with the distribution. 25 * 3. Neither the name of the University nor the names of its contributors 26 * may be used to endorse or promote products derived from this software 27 * without specific prior written permission. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 32 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 39 * SUCH DAMAGE. 40 * 41 * @(#)zsvar.h 8.1 (Berkeley) 6/11/93 42 */ 43 44 #include <machine/bus.h> 45 #include <dev/ic/z8530sc.h> 46 47 struct zsc_softc { 48 struct device zsc_dev; /* base device */ 49 bus_space_tag_t zsc_bustag; /* bus space/dma tags */ 50 bus_dma_tag_t zsc_dmatag; 51 struct zs_chanstate *zsc_cs[2]; /* channel A and B soft state */ 52 53 /* Machine-dependent part follows... */ 54 void *zsc_softintr; 55 int zsc_promunit; /* PROM's view of zs devices */ 56 int zsc_node; /* PROM node, if any */ 57 struct zs_chanstate zsc_cs_store[2]; 58 }; 59 60 /* 61 * Functions to read and write individual registers in a channel. 62 * The ZS chip requires a 1.6 uSec. recovery time between accesses. 63 * On sparc64, the recovery time is handled in hardware. 64 */ 65 66 u_char zs_read_reg(struct zs_chanstate *cs, u_char reg); 67 u_char zs_read_csr(struct zs_chanstate *cs); 68 u_char zs_read_data(struct zs_chanstate *cs); 69 70 void zs_write_reg(struct zs_chanstate *cs, u_char reg, u_char val); 71 void zs_write_csr(struct zs_chanstate *cs, u_char val); 72 void zs_write_data(struct zs_chanstate *cs, u_char val); 73 74 /* The sparc has splzs() in psl.h */ 75 76 /* We want to call it "zs" instead of "zsc" (sigh). */ 77 #ifndef ZSCCF_CHANNEL 78 #define ZSCCF_CHANNEL 0 79 #define ZSCCF_CHANNEL_DEFAULT -1 80 #endif 81