1 /* $NetBSD: wdc_ofisa.c,v 1.33 2012/07/31 15:50:35 bouyer 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 1.33 2012/07/31 15:50:35 bouyer 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 <sys/intr.h> 50 #include <sys/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 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 69 static int wdc_ofisa_probe(device_t, cfdata_t, void *); 70 static void wdc_ofisa_attach(device_t, device_t, void *); 71 72 CFATTACH_DECL_NEW(wdc_ofisa, sizeof(struct wdc_ofisa_softc), 73 wdc_ofisa_probe, wdc_ofisa_attach, NULL, NULL); 74 75 static int 76 wdc_ofisa_probe(device_t parent, cfdata_t cf, void *aux) 77 { 78 struct ofisa_attach_args *aa = aux; 79 static const char *const compatible_strings[] = { "pnpPNP,600", NULL }; 80 int rv = 0; 81 82 if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1) 83 rv = 5; 84 #ifdef _WDC_OFISA_MD_MATCH 85 if (!rv) 86 rv = wdc_ofisa_md_match(parent, cf, aux); 87 #endif 88 return (rv); 89 } 90 91 static void 92 wdc_ofisa_attach(device_t parent, device_t self, void *aux) 93 { 94 struct wdc_ofisa_softc *sc = device_private(self); 95 struct wdc_regs *wdr; 96 struct ofisa_attach_args *aa = aux; 97 struct ofisa_reg_desc reg[2]; 98 struct ofisa_intr_desc intr; 99 int n; 100 bus_space_handle_t ioh; 101 102 /* 103 * We're living on an ofw. We have to ask the OFW what our 104 * registers and interrupts properties look like. 105 * 106 * We expect exactly two register regions and one interrupt. 107 */ 108 109 sc->sc_wdcdev.sc_atac.atac_dev = self; 110 sc->sc_wdcdev.regs = wdr = &sc->wdc_regs; 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 aprint_error(": error getting register data\n"); 118 return; 119 } 120 if (reg[0].len != 8 || reg[1].len != 2) { 121 aprint_error(": 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 aprint_error(": error getting interrupt data\n"); 132 return; 133 } 134 135 wdr->cmd_iot = (reg[0].type == OFISA_REG_TYPE_IO) ? aa->iot : aa->memt; 136 wdr->ctl_iot = (reg[1].type == OFISA_REG_TYPE_IO) ? aa->iot : aa->memt; 137 if (bus_space_map(wdr->cmd_iot, reg[0].addr, 8, 0, &ioh) || 138 bus_space_map(wdr->ctl_iot, reg[1].addr, 1, 0, 139 &wdr->ctl_ioh)) { 140 aprint_error(": can't map register spaces\n"); 141 return; 142 } 143 wdr->cmd_baseioh = ioh; 144 145 for (n = 0; n < WDC_NREG; n++) { 146 if (bus_space_subregion(wdr->cmd_iot, ioh, n, 147 n == 0 ? 4 : 1, &wdr->cmd_iohs[n]) != 0) { 148 aprint_error(": can't subregion register space\n"); 149 return; 150 } 151 } 152 153 sc->sc_ih = isa_intr_establish(aa->ic, intr.irq, intr.share, 154 IPL_BIO, wdcintr, &sc->sc_channel); 155 156 aprint_normal("\n"); 157 sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DATA16; 158 sc->sc_chanlist[0] = &sc->sc_channel; 159 sc->sc_wdcdev.sc_atac.atac_channels = sc->sc_chanlist; 160 sc->sc_wdcdev.sc_atac.atac_nchannels = 1; 161 sc->sc_wdcdev.wdc_maxdrives = 2; 162 sc->sc_channel.ch_channel = 0; 163 sc->sc_channel.ch_atac = &sc->sc_wdcdev.sc_atac; 164 sc->sc_channel.ch_queue = &sc->sc_chqueue; 165 166 wdc_init_shadow_regs(&sc->sc_channel); 167 168 wdcattach(&sc->sc_channel); 169 170 #if 0 171 aprint_verbose_dev(self, "registers: "); 172 ofisa_reg_print(reg, 2); 173 aprint_verbose("\n"); 174 aprint_verbose_dev(self, "interrupts: "); 175 ofisa_intr_print(&intr, 1); 176 aprint_verbose("\n"); 177 #endif 178 } 179