wdc_ofisa.c revision 1.21
1/* $NetBSD: wdc_ofisa.c,v 1.21 2004/08/14 15:08:06 thorpej 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 1.21 2004/08/14 15:08:06 thorpej 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 ata_channel *sc_chanlist[1]; 63 struct ata_channel sc_channel; 64 struct ata_queue sc_chqueue; 65 struct wdc_regs wdc_regs; 66 void *sc_ih; 67}; 68 69int wdc_ofisa_probe __P((struct device *, struct cfdata *, void *)); 70void wdc_ofisa_attach __P((struct device *, struct device *, void *)); 71 72CFATTACH_DECL(wdc_ofisa, sizeof(struct wdc_ofisa_softc), 73 wdc_ofisa_probe, wdc_ofisa_attach, NULL, NULL); 74 75int 76wdc_ofisa_probe(parent, cf, aux) 77 struct device *parent; 78 struct cfdata *cf; 79 void *aux; 80{ 81 struct ofisa_attach_args *aa = aux; 82 static const char *const compatible_strings[] = { "pnpPNP,600", NULL }; 83 int rv = 0; 84 85 if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1) 86 rv = 5; 87#ifdef _WDC_OFISA_MD_MATCH 88 if (!rv) 89 rv = wdc_ofisa_md_match(parent, cf, aux); 90#endif 91 return (rv); 92} 93 94void 95wdc_ofisa_attach(parent, self, aux) 96 struct device *parent, *self; 97 void *aux; 98{ 99 struct wdc_ofisa_softc *sc = (void *)self; 100 struct wdc_regs *wdr; 101 struct ofisa_attach_args *aa = aux; 102 struct ofisa_reg_desc reg[2]; 103 struct ofisa_intr_desc intr; 104 int n; 105 bus_space_handle_t ioh; 106 107 /* 108 * We're living on an ofw. We have to ask the OFW what our 109 * registers and interrupts properties look like. 110 * 111 * We expect exactly two register regions and one interrupt. 112 */ 113 114 sc->sc_wdcdev.regs = wdr = &sc->wdc_regs; 115 116 n = ofisa_reg_get(aa->oba.oba_phandle, reg, 2); 117#ifdef _WDC_OFISA_MD_REG_FIXUP 118 n = wdc_ofisa_md_reg_fixup(parent, self, aux, reg, 2, n); 119#endif 120 if (n != 2) { 121 printf(": error getting register data\n"); 122 return; 123 } 124 if (reg[0].len != 8 || reg[1].len != 2) { 125 printf(": weird register size (%lu/%lu, expected 8/2)\n", 126 (unsigned long)reg[0].len, (unsigned long)reg[1].len); 127 return; 128 } 129 130 n = ofisa_intr_get(aa->oba.oba_phandle, &intr, 1); 131#ifdef _WDC_OFISA_MD_INTR_FIXUP 132 n = wdc_ofisa_md_intr_fixup(parent, self, aux, &intr, 1, n); 133#endif 134 if (n != 1) { 135 printf(": error getting interrupt data\n"); 136 return; 137 } 138 139 wdr->cmd_iot = (reg[0].type == OFISA_REG_TYPE_IO) ? aa->iot : aa->memt; 140 wdr->ctl_iot = (reg[1].type == OFISA_REG_TYPE_IO) ? aa->iot : aa->memt; 141 if (bus_space_map(wdr->cmd_iot, reg[0].addr, 8, 0, &ioh) || 142 bus_space_map(wdr->ctl_iot, reg[1].addr, 1, 0, 143 &wdr->ctl_ioh)) { 144 printf(": can't map register spaces\n"); 145 return; 146 } 147 wdr->cmd_baseioh = ioh; 148 149 for (n = 0; n < WDC_NREG; n++) { 150 if (bus_space_subregion(wdr->cmd_iot, ioh, n, 151 n == 0 ? 4 : 1, &wdr->cmd_iohs[n]) != 0) { 152 printf(": can't subregion register space\n"); 153 return; 154 } 155 } 156 wdc_init_shadow_regs(&sc->sc_channel); 157 158 sc->sc_ih = isa_intr_establish(aa->ic, intr.irq, intr.share, 159 IPL_BIO, wdcintr, &sc->sc_channel); 160 161 printf("\n"); 162 sc->sc_wdcdev.cap |= WDC_CAPABILITY_DATA16; 163 sc->sc_chanlist[0] = &sc->sc_channel; 164 sc->sc_wdcdev.channels = sc->sc_chanlist; 165 sc->sc_wdcdev.nchannels = 1; 166 sc->sc_channel.ch_channel = 0; 167 sc->sc_channel.ch_wdc = &sc->sc_wdcdev; 168 sc->sc_channel.ch_queue = &sc->sc_chqueue; 169 170 wdcattach(&sc->sc_channel); 171 172#if 0 173 printf("%s: registers: ", sc->sc_dev.dv_xname); 174 ofisa_reg_print(reg, 2); 175 printf("\n"); 176 printf("%s: interrupts: ", sc->sc_dev.dv_xname); 177 ofisa_intr_print(&intr, 1); 178 printf("\n"); 179#endif 180} 181