wdc_isapnp.c revision 1.8
1 /* $NetBSD: wdc_isapnp.c,v 1.8 1998/10/12 16:09:19 bouyer 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_channel; 62 isa_chipset_tag_t sc_ic; 63 void *sc_ih; 64 int sc_drq; 65 }; 66 67 int wdc_isapnp_probe __P((struct device *, struct cfdata *, void *)); 68 void wdc_isapnp_attach __P((struct device *, struct device *, void *)); 69 70 struct cfattach wdc_isapnp_ca = { 71 sizeof(struct wdc_isapnp_softc), wdc_isapnp_probe, wdc_isapnp_attach 72 }; 73 74 #ifdef notyet 75 static void wdc_isapnp_dma_setup __P((struct wdc_isapnp_softc *)); 76 static void wdc_isapnp_dma_start __P((void *, void *, size_t, int)); 77 static void wdc_isapnp_dma_finish __P((void *)); 78 #endif 79 80 int 81 wdc_isapnp_probe(parent, match, aux) 82 struct device *parent; 83 struct cfdata *match; 84 void *aux; 85 { 86 return isapnp_devmatch(aux, &isapnp_wdc_devinfo); 87 } 88 89 void 90 wdc_isapnp_attach(parent, self, aux) 91 struct device *parent, *self; 92 void *aux; 93 { 94 struct wdc_isapnp_softc *sc = (void *)self; 95 struct isapnp_attach_args *ipa = aux; 96 97 printf("\n"); 98 99 if (ipa->ipa_nio != 2 || 100 ipa->ipa_nmem != 0 || 101 ipa->ipa_nmem32 != 0 || 102 ipa->ipa_nirq != 1 || 103 ipa->ipa_ndrq > 1) { 104 printf("%s: unexpected configuration\n", 105 sc->sc_wdcdev.sc_dev.dv_xname); 106 return; 107 } 108 109 if (isapnp_config(ipa->ipa_iot, ipa->ipa_memt, ipa)) { 110 printf("%s: couldn't map registers\n", 111 sc->sc_wdcdev.sc_dev.dv_xname); 112 return; 113 } 114 115 printf("%s: %s %s\n", sc->sc_wdcdev.sc_dev.dv_xname, ipa->ipa_devident, 116 ipa->ipa_devclass); 117 118 sc->wdc_channel.cmd_iot = ipa->ipa_iot; 119 sc->wdc_channel.ctl_iot = ipa->ipa_iot; 120 /* 121 * An IDE controller can feed us the regions in any order. Pass 122 * them along with the 8-byte region in sc_ad.ioh, and the other 123 * (2 byte) region in auxioh. 124 */ 125 if (ipa->ipa_io[0].length == 8) { 126 sc->wdc_channel.cmd_ioh = ipa->ipa_io[0].h; 127 sc->wdc_channel.ctl_ioh = ipa->ipa_io[1].h; 128 } else { 129 sc->wdc_channel.cmd_ioh = ipa->ipa_io[1].h; 130 sc->wdc_channel.ctl_ioh = ipa->ipa_io[0].h; 131 } 132 sc->wdc_channel.data32iot = sc->wdc_channel.cmd_iot; 133 sc->wdc_channel.data32ioh = sc->wdc_channel.cmd_ioh; 134 135 sc->sc_ic = ipa->ipa_ic; 136 sc->sc_ih = isa_intr_establish(ipa->ipa_ic, ipa->ipa_irq[0].num, 137 ipa->ipa_irq[0].type, IPL_BIO, wdcintr, &sc->wdc_channel); 138 139 #ifdef notyet 140 if (ipa->ipa_ndrq > 0) { 141 sc->sc_drq = ipa->ipa_drq[0].num; 142 143 sc->sc_ad.cap |= WDC_CAPABILITY_DMA; 144 sc->sc_ad.dma_start = &wdc_isapnp_dma_start; 145 sc->sc_ad.dma_finish = &wdc_isapnp_dma_finish; 146 wdc_isapnp_dma_setup(sc); 147 } 148 #endif 149 sc->sc_wdcdev.cap |= WDC_CAPABILITY_DATA16 | WDC_CAPABILITY_DATA32; 150 sc->sc_wdcdev.pio_mode = 0; 151 sc->sc_wdcdev.channels = &sc->wdc_channel; 152 sc->sc_wdcdev.nchannels = 1; 153 sc->wdc_channel.channel = 0; 154 sc->wdc_channel.wdc = &sc->sc_wdcdev; 155 sc->wdc_channel.ch_queue = malloc(sizeof(struct channel_queue), 156 M_DEVBUF, M_NOWAIT); 157 if (sc->wdc_channel.ch_queue == NULL) { 158 printf("%s: can't allocate memory for command queue", 159 sc->sc_wdcdev.sc_dev.dv_xname); 160 return; 161 } 162 wdcattach(&sc->wdc_channel); 163 } 164 165 #ifdef notyet 166 static void 167 wdc_isapnp_dma_setup(sc) 168 struct wdc_isapnp_softc *sc; 169 { 170 171 if (isa_dmamap_create(sc->sc_ic, sc->sc_drq, 172 MAXPHYS, BUS_DMA_NOWAIT|BUS_DMA_ALLOCNOW)) { 173 printf("%s: can't create map for drq %d\n", 174 sc->sc_wdcdev.sc_dev.dv_xname, sc->sc_drq); 175 sc->sc_wdcdev.cap &= ~WDC_CAPABILITY_DMA; 176 } 177 } 178 179 static void 180 wdc_isapnp_dma_start(scv, buf, size, read) 181 void *scv, *buf; 182 size_t size; 183 int read; 184 { 185 struct wdc_isapnp_softc *sc = scv; 186 187 isa_dmastart(sc->sc_ic, sc->sc_drq, buf, 188 size, NULL, read ? DMAMODE_READ : DMAMODE_WRITE, 189 BUS_DMA_NOWAIT); 190 } 191 192 static void 193 wdc_isapnp_dma_finish(scv) 194 void *scv; 195 { 196 struct wdc_isapnp_softc *sc = scv; 197 198 isa_dmadone(sc->sc_ic, sc->sc_drq); 199 } 200 #endif 201
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