1 /* $NetBSD: wdc_isapnp.c,v 1.19 2003/03/22 20:05:20 matt 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/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: wdc_isapnp.c,v 1.19 2003/03/22 20:05:20 matt Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/device.h> 45 #include <sys/malloc.h> 46 47 #include <machine/bus.h> 48 #include <machine/intr.h> 49 50 #include <dev/isa/isavar.h> 51 #include <dev/isa/isadmavar.h> 52 53 #include <dev/isapnp/isapnpreg.h> 54 #include <dev/isapnp/isapnpvar.h> 55 #include <dev/isapnp/isapnpdevs.h> 56 57 #include <dev/ata/atavar.h> 58 #include <dev/ic/wdcreg.h> 59 #include <dev/ic/wdcvar.h> 60 61 struct wdc_isapnp_softc { 62 struct wdc_softc sc_wdcdev; 63 struct channel_softc *wdc_chanlist[1]; 64 struct channel_softc wdc_channel; 65 struct channel_queue wdc_chqueue; 66 isa_chipset_tag_t sc_ic; 67 void *sc_ih; 68 int sc_drq; 69 }; 70 71 int wdc_isapnp_probe __P((struct device *, struct cfdata *, void *)); 72 void wdc_isapnp_attach __P((struct device *, struct device *, void *)); 73 74 CFATTACH_DECL(wdc_isapnp, sizeof(struct wdc_isapnp_softc), 75 wdc_isapnp_probe, wdc_isapnp_attach, NULL, NULL); 76 77 #ifdef notyet 78 static void wdc_isapnp_dma_setup __P((struct wdc_isapnp_softc *)); 79 static void wdc_isapnp_dma_start __P((void *, void *, size_t, int)); 80 static void wdc_isapnp_dma_finish __P((void *)); 81 #endif 82 83 int 84 wdc_isapnp_probe(parent, match, aux) 85 struct device *parent; 86 struct cfdata *match; 87 void *aux; 88 { 89 int pri, variant; 90 91 pri = isapnp_devmatch(aux, &isapnp_wdc_devinfo, &variant); 92 if (pri && variant > 0) 93 pri = 0; 94 return (pri); 95 } 96 97 void 98 wdc_isapnp_attach(parent, self, aux) 99 struct device *parent, *self; 100 void *aux; 101 { 102 struct wdc_isapnp_softc *sc = (void *)self; 103 struct isapnp_attach_args *ipa = aux; 104 105 if (ipa->ipa_nio != 2 || 106 ipa->ipa_nmem != 0 || 107 ipa->ipa_nmem32 != 0 || 108 ipa->ipa_nirq != 1 || 109 ipa->ipa_ndrq > 1) { 110 printf(": unexpected configuration\n"); 111 return; 112 } 113 114 if (isapnp_config(ipa->ipa_iot, ipa->ipa_memt, ipa)) { 115 printf(": couldn't map registers\n"); 116 return; 117 } 118 119 printf(": %s %s\n", ipa->ipa_devident, 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_chanlist[0] = &sc->wdc_channel; 155 sc->sc_wdcdev.channels = sc->wdc_chanlist; 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 = &sc->wdc_chqueue; 160 wdcattach(&sc->wdc_channel); 161 wdc_print_modes(&sc->wdc_channel); 162 } 163 164 #ifdef notyet 165 static void 166 wdc_isapnp_dma_setup(sc) 167 struct wdc_isapnp_softc *sc; 168 { 169 170 if (isa_dmamap_create(sc->sc_ic, sc->sc_drq, 171 MAXPHYS, BUS_DMA_NOWAIT|BUS_DMA_ALLOCNOW)) { 172 printf("%s: can't create map for drq %d\n", 173 sc->sc_wdcdev.sc_dev.dv_xname, sc->sc_drq); 174 sc->sc_wdcdev.cap &= ~WDC_CAPABILITY_DMA; 175 } 176 } 177 178 static void 179 wdc_isapnp_dma_start(scv, buf, size, read) 180 void *scv, *buf; 181 size_t size; 182 int read; 183 { 184 struct wdc_isapnp_softc *sc = scv; 185 186 isa_dmastart(sc->sc_ic, sc->sc_drq, buf, size, NULL, 187 (read ? DMAMODE_READ : DMAMODE_WRITE) | DMAMODE_DEMAND, 188 BUS_DMA_NOWAIT); 189 } 190 191 static void 192 wdc_isapnp_dma_finish(scv) 193 void *scv; 194 { 195 struct wdc_isapnp_softc *sc = scv; 196 197 isa_dmadone(sc->sc_ic, sc->sc_drq); 198 } 199 #endif 200