wdc_isapnp.c revision 1.14
1 /* $NetBSD: wdc_isapnp.c,v 1.14 2001/11/13 07:56:43 lukem 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 1.14 2001/11/13 07:56:43 lukem Exp $"); 41 42 #include <sys/types.h> 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/device.h> 46 #include <sys/malloc.h> 47 48 #include <machine/bus.h> 49 #include <machine/intr.h> 50 51 #include <dev/isa/isavar.h> 52 #include <dev/isa/isadmavar.h> 53 54 #include <dev/isapnp/isapnpreg.h> 55 #include <dev/isapnp/isapnpvar.h> 56 #include <dev/isapnp/isapnpdevs.h> 57 58 #include <dev/ata/atavar.h> 59 #include <dev/ic/wdcreg.h> 60 #include <dev/ic/wdcvar.h> 61 62 struct wdc_isapnp_softc { 63 struct wdc_softc sc_wdcdev; 64 struct channel_softc *wdc_chanptr; 65 struct channel_softc wdc_channel; 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 struct cfattach wdc_isapnp_ca = { 75 sizeof(struct wdc_isapnp_softc), wdc_isapnp_probe, wdc_isapnp_attach 76 }; 77 78 #ifdef notyet 79 static void wdc_isapnp_dma_setup __P((struct wdc_isapnp_softc *)); 80 static void wdc_isapnp_dma_start __P((void *, void *, size_t, int)); 81 static void wdc_isapnp_dma_finish __P((void *)); 82 #endif 83 84 int 85 wdc_isapnp_probe(parent, match, aux) 86 struct device *parent; 87 struct cfdata *match; 88 void *aux; 89 { 90 int pri, variant; 91 92 pri = isapnp_devmatch(aux, &isapnp_wdc_devinfo, &variant); 93 if (pri && variant > 0) 94 pri = 0; 95 return (pri); 96 } 97 98 void 99 wdc_isapnp_attach(parent, self, aux) 100 struct device *parent, *self; 101 void *aux; 102 { 103 struct wdc_isapnp_softc *sc = (void *)self; 104 struct isapnp_attach_args *ipa = aux; 105 106 printf("\n"); 107 108 if (ipa->ipa_nio != 2 || 109 ipa->ipa_nmem != 0 || 110 ipa->ipa_nmem32 != 0 || 111 ipa->ipa_nirq != 1 || 112 ipa->ipa_ndrq > 1) { 113 printf("%s: unexpected configuration\n", 114 sc->sc_wdcdev.sc_dev.dv_xname); 115 return; 116 } 117 118 if (isapnp_config(ipa->ipa_iot, ipa->ipa_memt, ipa)) { 119 printf("%s: couldn't map registers\n", 120 sc->sc_wdcdev.sc_dev.dv_xname); 121 return; 122 } 123 124 printf("%s: %s %s\n", sc->sc_wdcdev.sc_dev.dv_xname, ipa->ipa_devident, 125 ipa->ipa_devclass); 126 127 sc->wdc_channel.cmd_iot = ipa->ipa_iot; 128 sc->wdc_channel.ctl_iot = ipa->ipa_iot; 129 /* 130 * An IDE controller can feed us the regions in any order. Pass 131 * them along with the 8-byte region in sc_ad.ioh, and the other 132 * (2 byte) region in auxioh. 133 */ 134 if (ipa->ipa_io[0].length == 8) { 135 sc->wdc_channel.cmd_ioh = ipa->ipa_io[0].h; 136 sc->wdc_channel.ctl_ioh = ipa->ipa_io[1].h; 137 } else { 138 sc->wdc_channel.cmd_ioh = ipa->ipa_io[1].h; 139 sc->wdc_channel.ctl_ioh = ipa->ipa_io[0].h; 140 } 141 sc->wdc_channel.data32iot = sc->wdc_channel.cmd_iot; 142 sc->wdc_channel.data32ioh = sc->wdc_channel.cmd_ioh; 143 144 sc->sc_ic = ipa->ipa_ic; 145 sc->sc_ih = isa_intr_establish(ipa->ipa_ic, ipa->ipa_irq[0].num, 146 ipa->ipa_irq[0].type, IPL_BIO, wdcintr, &sc->wdc_channel); 147 148 #ifdef notyet 149 if (ipa->ipa_ndrq > 0) { 150 sc->sc_drq = ipa->ipa_drq[0].num; 151 152 sc->sc_ad.cap |= WDC_CAPABILITY_DMA; 153 sc->sc_ad.dma_start = &wdc_isapnp_dma_start; 154 sc->sc_ad.dma_finish = &wdc_isapnp_dma_finish; 155 wdc_isapnp_dma_setup(sc); 156 } 157 #endif 158 sc->sc_wdcdev.cap |= WDC_CAPABILITY_DATA16 | WDC_CAPABILITY_DATA32; 159 sc->sc_wdcdev.PIO_cap = 0; 160 sc->wdc_chanptr = &sc->wdc_channel; 161 sc->sc_wdcdev.channels = &sc->wdc_chanptr; 162 sc->sc_wdcdev.nchannels = 1; 163 sc->wdc_channel.channel = 0; 164 sc->wdc_channel.wdc = &sc->sc_wdcdev; 165 sc->wdc_channel.ch_queue = malloc(sizeof(struct channel_queue), 166 M_DEVBUF, M_NOWAIT); 167 if (sc->wdc_channel.ch_queue == NULL) { 168 printf("%s: can't allocate memory for command queue", 169 sc->sc_wdcdev.sc_dev.dv_xname); 170 return; 171 } 172 wdcattach(&sc->wdc_channel); 173 } 174 175 #ifdef notyet 176 static void 177 wdc_isapnp_dma_setup(sc) 178 struct wdc_isapnp_softc *sc; 179 { 180 181 if (isa_dmamap_create(sc->sc_ic, sc->sc_drq, 182 MAXPHYS, BUS_DMA_NOWAIT|BUS_DMA_ALLOCNOW)) { 183 printf("%s: can't create map for drq %d\n", 184 sc->sc_wdcdev.sc_dev.dv_xname, sc->sc_drq); 185 sc->sc_wdcdev.cap &= ~WDC_CAPABILITY_DMA; 186 } 187 } 188 189 static void 190 wdc_isapnp_dma_start(scv, buf, size, read) 191 void *scv, *buf; 192 size_t size; 193 int read; 194 { 195 struct wdc_isapnp_softc *sc = scv; 196 197 isa_dmastart(sc->sc_ic, sc->sc_drq, buf, size, NULL, 198 (read ? DMAMODE_READ : DMAMODE_WRITE) | DMAMODE_DEMAND, 199 BUS_DMA_NOWAIT); 200 } 201 202 static void 203 wdc_isapnp_dma_finish(scv) 204 void *scv; 205 { 206 struct wdc_isapnp_softc *sc = scv; 207 208 isa_dmadone(sc->sc_ic, sc->sc_drq); 209 } 210 #endif 211
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