wdc_isapnp.c revision 1.12
1 /* $NetBSD: wdc_isapnp.c,v 1.12 1999/03/22 09:44:14 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 #include <sys/malloc.h> 44 45 #include <machine/bus.h> 46 #include <machine/intr.h> 47 48 #include <dev/isa/isavar.h> 49 #include <dev/isa/isadmavar.h> 50 51 #include <dev/isapnp/isapnpreg.h> 52 #include <dev/isapnp/isapnpvar.h> 53 #include <dev/isapnp/isapnpdevs.h> 54 55 #include <dev/ata/atavar.h> 56 #include <dev/ic/wdcreg.h> 57 #include <dev/ic/wdcvar.h> 58 59 struct wdc_isapnp_softc { 60 struct wdc_softc sc_wdcdev; 61 struct channel_softc *wdc_chanptr; 62 struct channel_softc wdc_channel; 63 isa_chipset_tag_t sc_ic; 64 void *sc_ih; 65 int sc_drq; 66 }; 67 68 int wdc_isapnp_probe __P((struct device *, struct cfdata *, void *)); 69 void wdc_isapnp_attach __P((struct device *, struct device *, void *)); 70 71 struct cfattach wdc_isapnp_ca = { 72 sizeof(struct wdc_isapnp_softc), wdc_isapnp_probe, wdc_isapnp_attach 73 }; 74 75 #ifdef notyet 76 static void wdc_isapnp_dma_setup __P((struct wdc_isapnp_softc *)); 77 static void wdc_isapnp_dma_start __P((void *, void *, size_t, int)); 78 static void wdc_isapnp_dma_finish __P((void *)); 79 #endif 80 81 int 82 wdc_isapnp_probe(parent, match, aux) 83 struct device *parent; 84 struct cfdata *match; 85 void *aux; 86 { 87 int variant; 88 89 return (isapnp_devmatch(aux, &isapnp_wdc_devinfo, &variant)); 90 } 91 92 void 93 wdc_isapnp_attach(parent, self, aux) 94 struct device *parent, *self; 95 void *aux; 96 { 97 struct wdc_isapnp_softc *sc = (void *)self; 98 struct isapnp_attach_args *ipa = aux; 99 100 printf("\n"); 101 102 if (ipa->ipa_nio != 2 || 103 ipa->ipa_nmem != 0 || 104 ipa->ipa_nmem32 != 0 || 105 ipa->ipa_nirq != 1 || 106 ipa->ipa_ndrq > 1) { 107 printf("%s: unexpected configuration\n", 108 sc->sc_wdcdev.sc_dev.dv_xname); 109 return; 110 } 111 112 if (isapnp_config(ipa->ipa_iot, ipa->ipa_memt, ipa)) { 113 printf("%s: couldn't map registers\n", 114 sc->sc_wdcdev.sc_dev.dv_xname); 115 return; 116 } 117 118 printf("%s: %s %s\n", sc->sc_wdcdev.sc_dev.dv_xname, ipa->ipa_devident, 119 ipa->ipa_devclass); 120 121 sc->wdc_channel.cmd_iot = ipa->ipa_iot; 122 sc->wdc_channel.ctl_iot = ipa->ipa_iot; 123 /* 124 * An IDE controller can feed us the regions in any order. Pass 125 * them along with the 8-byte region in sc_ad.ioh, and the other 126 * (2 byte) region in auxioh. 127 */ 128 if (ipa->ipa_io[0].length == 8) { 129 sc->wdc_channel.cmd_ioh = ipa->ipa_io[0].h; 130 sc->wdc_channel.ctl_ioh = ipa->ipa_io[1].h; 131 } else { 132 sc->wdc_channel.cmd_ioh = ipa->ipa_io[1].h; 133 sc->wdc_channel.ctl_ioh = ipa->ipa_io[0].h; 134 } 135 sc->wdc_channel.data32iot = sc->wdc_channel.cmd_iot; 136 sc->wdc_channel.data32ioh = sc->wdc_channel.cmd_ioh; 137 138 sc->sc_ic = ipa->ipa_ic; 139 sc->sc_ih = isa_intr_establish(ipa->ipa_ic, ipa->ipa_irq[0].num, 140 ipa->ipa_irq[0].type, IPL_BIO, wdcintr, &sc->wdc_channel); 141 142 #ifdef notyet 143 if (ipa->ipa_ndrq > 0) { 144 sc->sc_drq = ipa->ipa_drq[0].num; 145 146 sc->sc_ad.cap |= WDC_CAPABILITY_DMA; 147 sc->sc_ad.dma_start = &wdc_isapnp_dma_start; 148 sc->sc_ad.dma_finish = &wdc_isapnp_dma_finish; 149 wdc_isapnp_dma_setup(sc); 150 } 151 #endif 152 sc->sc_wdcdev.cap |= WDC_CAPABILITY_DATA16 | WDC_CAPABILITY_DATA32; 153 sc->sc_wdcdev.PIO_cap = 0; 154 sc->wdc_chanptr = &sc->wdc_channel; 155 sc->sc_wdcdev.channels = &sc->wdc_chanptr; 156 sc->sc_wdcdev.nchannels = 1; 157 sc->wdc_channel.channel = 0; 158 sc->wdc_channel.wdc = &sc->sc_wdcdev; 159 sc->wdc_channel.ch_queue = malloc(sizeof(struct channel_queue), 160 M_DEVBUF, M_NOWAIT); 161 if (sc->wdc_channel.ch_queue == NULL) { 162 printf("%s: can't allocate memory for command queue", 163 sc->sc_wdcdev.sc_dev.dv_xname); 164 return; 165 } 166 wdcattach(&sc->wdc_channel); 167 } 168 169 #ifdef notyet 170 static void 171 wdc_isapnp_dma_setup(sc) 172 struct wdc_isapnp_softc *sc; 173 { 174 175 if (isa_dmamap_create(sc->sc_ic, sc->sc_drq, 176 MAXPHYS, BUS_DMA_NOWAIT|BUS_DMA_ALLOCNOW)) { 177 printf("%s: can't create map for drq %d\n", 178 sc->sc_wdcdev.sc_dev.dv_xname, sc->sc_drq); 179 sc->sc_wdcdev.cap &= ~WDC_CAPABILITY_DMA; 180 } 181 } 182 183 static void 184 wdc_isapnp_dma_start(scv, buf, size, read) 185 void *scv, *buf; 186 size_t size; 187 int read; 188 { 189 struct wdc_isapnp_softc *sc = scv; 190 191 isa_dmastart(sc->sc_ic, sc->sc_drq, buf, size, NULL, 192 (read ? DMAMODE_READ : DMAMODE_WRITE) | DMAMODE_DEMAND, 193 BUS_DMA_NOWAIT); 194 } 195 196 static void 197 wdc_isapnp_dma_finish(scv) 198 void *scv; 199 { 200 struct wdc_isapnp_softc *sc = scv; 201 202 isa_dmadone(sc->sc_ic, sc->sc_drq); 203 } 204 #endif 205
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