1 /* $OpenBSD: wdc_isapnp.c,v 1.12 2021/03/07 06:17:04 jsg Exp $ */ 2 /* $NetBSD: wdc_isapnp.c,v 1.13 1999/03/22 10:00:12 mycroft Exp $ */ 3 4 /*- 5 * Copyright (c) 1998 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Charles M. Hannum and by Onno van der Linden. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/device.h> 36 #include <sys/malloc.h> 37 38 #include <machine/bus.h> 39 #include <machine/intr.h> 40 41 #include <dev/isa/isavar.h> 42 #include <dev/isa/isadmavar.h> 43 44 #include <dev/ata/atavar.h> 45 #include <dev/ic/wdcreg.h> 46 #include <dev/ic/wdcvar.h> 47 48 struct wdc_isapnp_softc { 49 struct wdc_softc sc_wdcdev; 50 struct channel_softc *wdc_chanptr; 51 struct channel_softc wdc_channel; 52 isa_chipset_tag_t sc_ic; 53 void *sc_ih; 54 int sc_drq; 55 }; 56 57 int wdc_isapnp_match(struct device *, void *, void *); 58 void wdc_isapnp_attach(struct device *, struct device *, void *); 59 60 struct cfattach wdc_isapnp_ca = { 61 sizeof(struct wdc_isapnp_softc), wdc_isapnp_match, wdc_isapnp_attach 62 }; 63 64 int 65 wdc_isapnp_match(struct device *parent, void *match, void *aux) 66 { 67 struct isa_attach_args *ipa = aux; 68 69 if (ipa->ipa_nio != 2 || 70 ipa->ipa_nmem != 0 || 71 ipa->ipa_nmem32 != 0 || 72 ipa->ipa_nirq != 1 || 73 ipa->ipa_ndrq > 1) 74 return 0; 75 76 return (1); 77 } 78 79 void 80 wdc_isapnp_attach(struct device *parent, struct device *self, void *aux) 81 { 82 struct wdc_isapnp_softc *sc = (void *)self; 83 struct isa_attach_args *ipa = aux; 84 85 86 sc->wdc_channel.cmd_iot = ipa->ia_iot; 87 sc->wdc_channel.ctl_iot = ipa->ia_iot; 88 89 /* 90 * An IDE controller can feed us the regions in any order. Pass 91 * them along with the 8-byte region in sc_ad.ioh, and the other 92 * (2 byte) region in auxioh. 93 */ 94 if (ipa->ipa_io[0].length == 8) { 95 sc->wdc_channel.cmd_ioh = ipa->ipa_io[0].h; 96 sc->wdc_channel.ctl_ioh = ipa->ipa_io[1].h; 97 } else { 98 sc->wdc_channel.cmd_ioh = ipa->ipa_io[1].h; 99 sc->wdc_channel.ctl_ioh = ipa->ipa_io[0].h; 100 } 101 sc->wdc_channel.data32iot = sc->wdc_channel.cmd_iot; 102 sc->wdc_channel.data32ioh = sc->wdc_channel.cmd_ioh; 103 104 sc->sc_ic = ipa->ia_ic; 105 sc->sc_ih = isa_intr_establish(ipa->ia_ic, ipa->ipa_irq[0].num, 106 ipa->ipa_irq[0].type, IPL_BIO, wdcintr, &sc->wdc_channel, 107 sc->sc_wdcdev.sc_dev.dv_xname); 108 109 sc->sc_wdcdev.cap |= WDC_CAPABILITY_DATA16 | WDC_CAPABILITY_DATA32; 110 sc->sc_wdcdev.PIO_cap = 0; 111 sc->wdc_chanptr = &sc->wdc_channel; 112 sc->sc_wdcdev.channels = &sc->wdc_chanptr; 113 sc->sc_wdcdev.nchannels = 1; 114 sc->wdc_channel.channel = 0; 115 sc->wdc_channel.wdc = &sc->sc_wdcdev; 116 sc->wdc_channel.ch_queue = wdc_alloc_queue(); 117 if (sc->wdc_channel.ch_queue == NULL) { 118 printf(": cannot allocate channel queue\n"); 119 return; 120 } 121 122 printf("\n"); 123 wdcattach(&sc->wdc_channel); 124 wdc_print_current_modes(&sc->wdc_channel); 125 } 126