wdc_ofisa.c revision 1.16
1/* $NetBSD: wdc_ofisa.c,v 1.16 2003/11/27 23:02:40 fvdl Exp $ */ 2 3/* 4 * Copyright 1997, 1998 5 * Digital Equipment Corporation. All rights reserved. 6 * 7 * This software is furnished under license and may be used and 8 * copied only in accordance with the following terms and conditions. 9 * Subject to these conditions, you may download, copy, install, 10 * use, modify and distribute this software in source and/or binary 11 * form. No title or ownership is transferred hereby. 12 * 13 * 1) Any source code used, modified or distributed must reproduce 14 * and retain this copyright notice and list of conditions as 15 * they appear in the source file. 16 * 17 * 2) No right is granted to use any trade name, trademark, or logo of 18 * Digital Equipment Corporation. Neither the "Digital Equipment 19 * Corporation" name nor any trademark or logo of Digital Equipment 20 * Corporation may be used to endorse or promote products derived 21 * from this software without the prior written permission of 22 * Digital Equipment Corporation. 23 * 24 * 3) This software is provided "AS-IS" and any express or implied 25 * warranties, including but not limited to, any implied warranties 26 * of merchantability, fitness for a particular purpose, or 27 * non-infringement are disclaimed. In no event shall DIGITAL be 28 * liable for any damages whatsoever, and in particular, DIGITAL 29 * shall not be liable for special, indirect, consequential, or 30 * incidental damages or damages for lost profits, loss of 31 * revenue or loss of use, whether such damages arise in contract, 32 * negligence, tort, under statute, in equity, at law or otherwise, 33 * even if advised of the possibility of such damage. 34 */ 35 36/* 37 * OFW Attachment for 'wdc' disk controller driver 38 */ 39 40#include <sys/cdefs.h> 41__KERNEL_RCSID(0, "$NetBSD: wdc_ofisa.c,v 1.16 2003/11/27 23:02:40 fvdl Exp $"); 42 43#include <sys/param.h> 44#include <sys/device.h> 45#include <sys/systm.h> 46#include <sys/tty.h> 47#include <sys/malloc.h> 48 49#include <machine/intr.h> 50#include <machine/bus.h> 51 52#include <dev/ofw/openfirm.h> 53#include <dev/isa/isavar.h> 54#include <dev/ofisa/ofisavar.h> 55 56#include <dev/ic/wdcreg.h> /* ??? */ 57#include <dev/ata/atavar.h> 58#include <dev/ic/wdcvar.h> 59 60struct wdc_ofisa_softc { 61 struct wdc_softc sc_wdcdev; 62 struct channel_softc *wdc_chanlist[1]; 63 struct channel_softc wdc_channel; 64 struct channel_queue wdc_chqueue; 65 void *sc_ih; 66}; 67 68int wdc_ofisa_probe __P((struct device *, struct cfdata *, void *)); 69void wdc_ofisa_attach __P((struct device *, struct device *, void *)); 70 71CFATTACH_DECL(wdc_ofisa, sizeof(struct wdc_ofisa_softc), 72 wdc_ofisa_probe, wdc_ofisa_attach, NULL, NULL); 73 74int 75wdc_ofisa_probe(parent, cf, aux) 76 struct device *parent; 77 struct cfdata *cf; 78 void *aux; 79{ 80 struct ofisa_attach_args *aa = aux; 81 static const char *const compatible_strings[] = { "pnpPNP,600", NULL }; 82 int rv = 0; 83 84 if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1) 85 rv = 5; 86#ifdef _WDC_OFISA_MD_MATCH 87 if (!rv) 88 rv = wdc_ofisa_md_match(parent, cf, aux); 89#endif 90 return (rv); 91} 92 93void 94wdc_ofisa_attach(parent, self, aux) 95 struct device *parent, *self; 96 void *aux; 97{ 98 struct wdc_ofisa_softc *sc = (void *)self; 99 struct ofisa_attach_args *aa = aux; 100 struct ofisa_reg_desc reg[2]; 101 struct ofisa_intr_desc intr; 102 int n; 103 bus_space_handle_t ioh; 104 105 /* 106 * We're living on an ofw. We have to ask the OFW what our 107 * registers and interrupts properties look like. 108 * 109 * We expect exactly two register regions and one interrupt. 110 */ 111 112 n = ofisa_reg_get(aa->oba.oba_phandle, reg, 2); 113#ifdef _WDC_OFISA_MD_REG_FIXUP 114 n = wdc_ofisa_md_reg_fixup(parent, self, aux, reg, 2, n); 115#endif 116 if (n != 2) { 117 printf(": error getting register data\n"); 118 return; 119 } 120 if (reg[0].len != 8 || reg[1].len != 2) { 121 printf(": weird register size (%lu/%lu, expected 8/2)\n", 122 (unsigned long)reg[0].len, (unsigned long)reg[1].len); 123 return; 124 } 125 126 n = ofisa_intr_get(aa->oba.oba_phandle, &intr, 1); 127#ifdef _WDC_OFISA_MD_INTR_FIXUP 128 n = wdc_ofisa_md_intr_fixup(parent, self, aux, &intr, 1, n); 129#endif 130 if (n != 1) { 131 printf(": error getting interrupt data\n"); 132 return; 133 } 134 135 sc->wdc_channel.cmd_iot = 136 (reg[0].type == OFISA_REG_TYPE_IO) ? aa->iot : aa->memt; 137 sc->wdc_channel.ctl_iot = 138 (reg[1].type == OFISA_REG_TYPE_IO) ? aa->iot : aa->memt; 139 if (bus_space_map(sc->wdc_channel.cmd_iot, reg[0].addr, 8, 0, &ioh) || 140 bus_space_map(sc->wdc_channel.ctl_iot, reg[1].addr, 1, 0, 141 &sc->wdc_channel.ctl_ioh)) { 142 printf(": can't map register spaces\n"); 143 return; 144 } 145 sc->wdc_channel.cmd_baseioh = ioh; 146 147 for (n = 0; n < WDC_NREG; n++) { 148 if (bus_space_subregion(sc->wdc_channel.cmd_iot, ioh, n, 149 n == 0 ? 4 : 1, &sc->wdc_channel.cmd_iohs[n]) != 0) { 150 printf(": can't subregion register space\n"); 151 return; 152 } 153 } 154 155 156 sc->sc_ih = isa_intr_establish(aa->ic, intr.irq, intr.share, 157 IPL_BIO, wdcintr, &sc->wdc_channel); 158 159 printf("\n"); 160 sc->sc_wdcdev.cap |= WDC_CAPABILITY_DATA16; 161 sc->wdc_chanlist[0] = &sc->wdc_channel; 162 sc->sc_wdcdev.channels = sc->wdc_chanlist; 163 sc->sc_wdcdev.nchannels = 1; 164 sc->wdc_channel.channel = 0; 165 sc->wdc_channel.wdc = &sc->sc_wdcdev; 166 sc->wdc_channel.ch_queue = &sc->wdc_chqueue; 167 168 wdcattach(&sc->wdc_channel); 169 170#if 0 171 printf("%s: registers: ", sc->sc_dev.dv_xname); 172 ofisa_reg_print(reg, 2); 173 printf("\n"); 174 printf("%s: interrupts: ", sc->sc_dev.dv_xname); 175 ofisa_intr_print(&intr, 1); 176 printf("\n"); 177#endif 178} 179