wdc_isapnp.c revision 1.6
1 /* $NetBSD: wdc_isapnp.c,v 1.6 1998/08/15 10:10:52 mycroft 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.ioh = ipa->ipa_io[0].h; 118 sc->sc_ad.auxiot = ipa->ipa_iot; 119 sc->sc_ad.auxioh = ipa->ipa_io[1].h; 120 sc->sc_ic = ipa->ipa_ic; 121 122 sc->sc_ih = isa_intr_establish(ipa->ipa_ic, ipa->ipa_irq[0].num, 123 ipa->ipa_irq[0].type, IPL_BIO, wdcintr, sc); 124 125 #ifdef notyet 126 if (ipa->ipa_ndrq > 0) { 127 sc->sc_drq = ipa->ipa_drq[0].num; 128 129 sc->sc_ad.cap |= WDC_CAPABILITY_DMA; 130 sc->sc_ad.dma_setup = &wdc_isapnp_dma_setup; 131 sc->sc_ad.dma_start = &wdc_isapnp_dma_start; 132 sc->sc_ad.dma_finish = &wdc_isapnp_dma_finish; 133 } 134 #endif 135 136 wdcattach(&sc->sc_wdcdev, &sc->sc_ad); 137 } 138 139 #ifdef notyet 140 static void 141 wdc_isapnp_dma_setup(scv) 142 void *scv; 143 { 144 struct wdc_isapnp_softc *sc = scv; 145 146 if (isa_dmamap_create(sc->sc_ic, sc->sc_drq, 147 MAXPHYS, BUS_DMA_NOWAIT|BUS_DMA_ALLOCNOW)) { 148 printf("%s: can't create map for drq %d\n", 149 sc->sc_wdcdev.sc_dev.dv_xname, sc->sc_drq); 150 sc->sc_ad.cap &= ~WDC_CAPABILITY_DMA; 151 } 152 } 153 154 static void 155 wdc_isapnp_dma_start(scv, buf, size, read) 156 void *scv, *buf; 157 size_t size; 158 int read; 159 { 160 struct wdc_isapnp_softc *sc = scv; 161 162 isa_dmastart(sc->sc_ic, sc->sc_drq, buf, 163 size, NULL, read ? DMAMODE_READ : DMAMODE_WRITE, 164 BUS_DMA_NOWAIT); 165 } 166 167 static void 168 wdc_isapnp_dma_finish(scv) 169 void *scv; 170 { 171 struct wdc_isapnp_softc *sc = scv; 172 173 isa_dmadone(sc->sc_ic, sc->sc_drq); 174 } 175 #endif 176
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