wdc_isapnp.c revision 1.7
1 /* $NetBSD: wdc_isapnp.c,v 1.7 1998/09/12 21:40:22 wrstuden Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum and by Onno van der Linden. 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/types.h> 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/device.h> 43 44 #include <machine/bus.h> 45 #include <machine/intr.h> 46 47 #include <dev/isa/isavar.h> 48 #include <dev/isa/isadmavar.h> 49 50 #include <dev/isapnp/isapnpreg.h> 51 #include <dev/isapnp/isapnpvar.h> 52 #include <dev/isapnp/isapnpdevs.h> 53 54 #include <dev/ic/wdcreg.h> 55 #include <dev/ic/wdcvar.h> 56 57 struct wdc_isapnp_softc { 58 struct wdc_softc sc_wdcdev; 59 struct wdc_attachment_data sc_ad; 60 isa_chipset_tag_t sc_ic; 61 void *sc_ih; 62 int sc_drq; 63 }; 64 65 int wdc_isapnp_probe __P((struct device *, struct cfdata *, void *)); 66 void wdc_isapnp_attach __P((struct device *, struct device *, void *)); 67 68 struct cfattach wdc_isapnp_ca = { 69 sizeof(struct wdc_isapnp_softc), wdc_isapnp_probe, wdc_isapnp_attach 70 }; 71 72 #ifdef notyet 73 static void wdc_isapnp_dma_setup __P((void *)); 74 static void wdc_isapnp_dma_start __P((void *, void *, size_t, int)); 75 static void wdc_isapnp_dma_finish __P((void *)); 76 #endif 77 78 int 79 wdc_isapnp_probe(parent, match, aux) 80 struct device *parent; 81 struct cfdata *match; 82 void *aux; 83 { 84 return isapnp_devmatch(aux, &isapnp_wdc_devinfo); 85 } 86 87 void 88 wdc_isapnp_attach(parent, self, aux) 89 struct device *parent, *self; 90 void *aux; 91 { 92 struct wdc_isapnp_softc *sc = (void *)self; 93 struct isapnp_attach_args *ipa = aux; 94 95 printf("\n"); 96 97 if (ipa->ipa_nio != 2 || 98 ipa->ipa_nmem != 0 || 99 ipa->ipa_nmem32 != 0 || 100 ipa->ipa_nirq != 1 || 101 ipa->ipa_ndrq > 1) { 102 printf("%s: unexpected configuration\n", 103 sc->sc_wdcdev.sc_dev.dv_xname); 104 return; 105 } 106 107 if (isapnp_config(ipa->ipa_iot, ipa->ipa_memt, ipa)) { 108 printf("%s: couldn't map registers\n", 109 sc->sc_wdcdev.sc_dev.dv_xname); 110 return; 111 } 112 113 printf("%s: %s %s\n", sc->sc_wdcdev.sc_dev.dv_xname, ipa->ipa_devident, 114 ipa->ipa_devclass); 115 116 sc->sc_ad.iot = ipa->ipa_iot; 117 sc->sc_ad.auxiot = ipa->ipa_iot; 118 /* 119 * An IDE controller can feed us the regions in any order. Pass 120 * them along with the 8-byte region in sc_ad.ioh, and the other 121 * (2 byte) region in auxioh. 122 */ 123 if (ipa->ipa_io[0].length == 8) { 124 sc->sc_ad.ioh = ipa->ipa_io[0].h; 125 sc->sc_ad.auxioh = ipa->ipa_io[1].h; 126 } else { 127 sc->sc_ad.ioh = ipa->ipa_io[1].h; 128 sc->sc_ad.auxioh = ipa->ipa_io[0].h; 129 } 130 sc->sc_ic = ipa->ipa_ic; 131 132 sc->sc_ih = isa_intr_establish(ipa->ipa_ic, ipa->ipa_irq[0].num, 133 ipa->ipa_irq[0].type, IPL_BIO, wdcintr, sc); 134 135 #ifdef notyet 136 if (ipa->ipa_ndrq > 0) { 137 sc->sc_drq = ipa->ipa_drq[0].num; 138 139 sc->sc_ad.cap |= WDC_CAPABILITY_DMA; 140 sc->sc_ad.dma_setup = &wdc_isapnp_dma_setup; 141 sc->sc_ad.dma_start = &wdc_isapnp_dma_start; 142 sc->sc_ad.dma_finish = &wdc_isapnp_dma_finish; 143 } 144 #endif 145 146 wdcattach(&sc->sc_wdcdev, &sc->sc_ad); 147 } 148 149 #ifdef notyet 150 static void 151 wdc_isapnp_dma_setup(scv) 152 void *scv; 153 { 154 struct wdc_isapnp_softc *sc = scv; 155 156 if (isa_dmamap_create(sc->sc_ic, sc->sc_drq, 157 MAXPHYS, BUS_DMA_NOWAIT|BUS_DMA_ALLOCNOW)) { 158 printf("%s: can't create map for drq %d\n", 159 sc->sc_wdcdev.sc_dev.dv_xname, sc->sc_drq); 160 sc->sc_ad.cap &= ~WDC_CAPABILITY_DMA; 161 } 162 } 163 164 static void 165 wdc_isapnp_dma_start(scv, buf, size, read) 166 void *scv, *buf; 167 size_t size; 168 int read; 169 { 170 struct wdc_isapnp_softc *sc = scv; 171 172 isa_dmastart(sc->sc_ic, sc->sc_drq, buf, 173 size, NULL, read ? DMAMODE_READ : DMAMODE_WRITE, 174 BUS_DMA_NOWAIT); 175 } 176 177 static void 178 wdc_isapnp_dma_finish(scv) 179 void *scv; 180 { 181 struct wdc_isapnp_softc *sc = scv; 182 183 isa_dmadone(sc->sc_ic, sc->sc_drq); 184 } 185 #endif 186
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