1 /* $NetBSD: wdc_ofisa.c,v 1.11 2002/10/02 16:34:31 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 1.11 2002/10/02 16:34:31 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 60 struct wdc_ofisa_softc { 61 struct wdc_softc sc_wdcdev; 62 struct channel_softc *wdc_chanptr; 63 struct channel_softc wdc_channel; 64 void *sc_ih; 65 }; 66 67 int wdc_ofisa_probe __P((struct device *, struct cfdata *, void *)); 68 void wdc_ofisa_attach __P((struct device *, struct device *, void *)); 69 70 CFATTACH_DECL(wdc_ofisa, sizeof(struct wdc_ofisa_softc), 71 wdc_ofisa_probe, wdc_ofisa_attach, NULL, NULL); 72 73 int 74 wdc_ofisa_probe(parent, cf, aux) 75 struct device *parent; 76 struct cfdata *cf; 77 void *aux; 78 { 79 struct ofisa_attach_args *aa = aux; 80 static const char *const compatible_strings[] = { "pnpPNP,600", NULL }; 81 int rv = 0; 82 83 if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1) 84 rv = 5; 85 #ifdef _WDC_OFISA_MD_MATCH 86 if (!rv) 87 rv = wdc_ofisa_md_match(parent, cf, aux); 88 #endif 89 return (rv); 90 } 91 92 void 93 wdc_ofisa_attach(parent, self, aux) 94 struct device *parent, *self; 95 void *aux; 96 { 97 struct wdc_ofisa_softc *sc = (void *)self; 98 struct ofisa_attach_args *aa = aux; 99 struct ofisa_reg_desc reg[2]; 100 struct ofisa_intr_desc intr; 101 int n; 102 103 /* 104 * We're living on an ofw. We have to ask the OFW what our 105 * registers and interrupts properties look like. 106 * 107 * We expect exactly two register regions and one interrupt. 108 */ 109 110 n = ofisa_reg_get(aa->oba.oba_phandle, reg, 2); 111 #ifdef _WDC_OFISA_MD_REG_FIXUP 112 n = wdc_ofisa_md_reg_fixup(parent, self, aux, reg, 2, n); 113 #endif 114 if (n != 2) { 115 printf(": error getting register data\n"); 116 return; 117 } 118 if (reg[0].len != 8 || reg[1].len != 2) { 119 printf(": weird register size (%lu/%lu, expected 8/2)\n", 120 (unsigned long)reg[0].len, (unsigned long)reg[1].len); 121 return; 122 } 123 124 n = ofisa_intr_get(aa->oba.oba_phandle, &intr, 1); 125 #ifdef _WDC_OFISA_MD_INTR_FIXUP 126 n = wdc_ofisa_md_intr_fixup(parent, self, aux, &intr, 1, n); 127 #endif 128 if (n != 1) { 129 printf(": error getting interrupt data\n"); 130 return; 131 } 132 133 sc->wdc_channel.cmd_iot = 134 (reg[0].type == OFISA_REG_TYPE_IO) ? aa->iot : aa->memt; 135 sc->wdc_channel.ctl_iot = 136 (reg[1].type == OFISA_REG_TYPE_IO) ? aa->iot : aa->memt; 137 if (bus_space_map(sc->wdc_channel.cmd_iot, reg[0].addr, 8, 0, 138 &sc->wdc_channel.cmd_ioh) || 139 bus_space_map(sc->wdc_channel.ctl_iot, reg[1].addr, 1, 0, 140 &sc->wdc_channel.ctl_ioh)) { 141 printf(": can't map register spaces\n"); 142 return; 143 } 144 145 sc->sc_ih = isa_intr_establish(aa->ic, intr.irq, intr.share, 146 IPL_BIO, wdcintr, &sc->wdc_channel); 147 148 printf("\n"); 149 sc->sc_wdcdev.cap |= WDC_CAPABILITY_DATA16; 150 sc->wdc_chanptr = &sc->wdc_channel; 151 sc->sc_wdcdev.channels = &sc->wdc_chanptr; 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 wdc_print_modes(&sc->wdc_channel); 164 165 #if 0 166 printf("%s: registers: ", sc->sc_dev.dv_xname); 167 ofisa_reg_print(reg, 2); 168 printf("\n"); 169 printf("%s: interrupts: ", sc->sc_dev.dv_xname); 170 ofisa_intr_print(&intr, 1); 171 printf("\n"); 172 #endif 173 } 174