1/* $NetBSD: drsupio.c,v 1.23 2021/08/07 16:18:41 thorpej Exp $ */ 2 3/*- 4 * Copyright (c) 1997 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Ignatios Souvatzis. 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#include <sys/cdefs.h> 33__KERNEL_RCSID(0, "$NetBSD: drsupio.c,v 1.23 2021/08/07 16:18:41 thorpej Exp $"); 34 35/* 36 * DraCo multi-io chip bus space stuff 37 */ 38 39#include <sys/types.h> 40 41#include <sys/conf.h> 42#include <sys/device.h> 43#include <sys/systm.h> 44#include <sys/param.h> 45#include <sys/bus.h> 46 47#include <amiga/include/cpu.h> 48 49#include <amiga/amiga/device.h> 50#include <amiga/amiga/drcustom.h> 51 52#include <amiga/dev/supio.h> 53 54struct drsupio_softc { 55 struct bus_space_tag sc_bst; 56}; 57 58int drsupiomatch(device_t, cfdata_t, void *); 59void drsupioattach(device_t, device_t, void *); 60int drsupprint(void *, const char *); 61void drlptintack(void *); 62 63CFATTACH_DECL_NEW(drsupio, sizeof(struct drsupio_softc), 64 drsupiomatch, drsupioattach, NULL, NULL); 65 66int 67drsupiomatch(device_t parent, cfdata_t cf, void *aux) 68{ 69 static int drsupio_matched = 0; 70 71 /* Exactly one of us lives on the DraCo */ 72 if (!is_draco() || !matchname(aux, "drsupio") || drsupio_matched) 73 return 0; 74 75 drsupio_matched = 1; 76 return 1; 77} 78 79struct drsupio_devs { 80 const char *name; 81 int off; 82 int arg; 83} drsupiodevs[] = { 84 { "com", 0x3f8, 115200 * 16 }, 85 { "com", 0x2f8, 115200 * 16 }, 86 { "lpt", 0x278, (int)drlptintack }, 87 { "fdc", 0x3f0, 0 }, 88 /* WD port? */ 89 { 0 } 90}; 91 92void 93drsupioattach(device_t parent, device_t self, void *aux) 94{ 95 struct drsupio_softc *drsc; 96 struct drsupio_devs *drsd; 97 struct drioct *ioct; 98 struct supio_attach_args supa; 99 100 drsc = device_private(self); 101 drsd = drsupiodevs; 102 103 if (parent) 104 printf("\n"); 105 106 drsc->sc_bst.base = DRCCADDR + PAGE_SIZE * DRSUPIOPG + 1; 107 drsc->sc_bst.absm = &amiga_bus_stride_4; 108 109 supa.supio_iot = &drsc->sc_bst; 110 supa.supio_ipl = 5; 111 112 while (drsd->name) { 113 supa.supio_name = drsd->name; 114 supa.supio_iobase = drsd->off; 115 supa.supio_arg = drsd->arg; 116 config_found(self, &supa, drsupprint, CFARGS_NONE); /* XXX */ 117 ++drsd; 118 } 119 120 drlptintack(0); 121 ioct = (struct drioct *)(DRCCADDR + PAGE_SIZE * DRIOCTLPG); 122 ioct->io_status2 |= DRSTAT2_PARIRQENA; 123} 124 125void 126drlptintack(void *p) 127{ 128 struct drioct *ioct; 129 130 (void)p; 131 ioct = (struct drioct *)(DRCCADDR + PAGE_SIZE * DRIOCTLPG); 132 133 ioct->io_parrst = 0; /* any value works */ 134} 135 136int 137drsupprint(void *aux, const char *pnp) 138{ 139 struct supio_attach_args *supa; 140 141 supa = aux; 142 143 if (pnp == NULL) 144 return(QUIET); 145 146 aprint_normal("%s at %s port 0x%02x", 147 supa->supio_name, pnp, supa->supio_iobase); 148 149 return(UNCONF); 150} 151