wdc_obio.c revision 1.15
1 /* $NetBSD: wdc_obio.c,v 1.15 2004/05/25 20:42:40 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 2002 Takeshi Shibagaki All rights reserved. 5 * 6 * mac68k OBIO-IDE attachment created by Takeshi Shibagaki 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Charles M. Hannum. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: wdc_obio.c,v 1.15 2004/05/25 20:42:40 thorpej Exp $"); 36 37 #include <sys/types.h> 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/device.h> 41 #include <sys/malloc.h> 42 #include <sys/kernel.h> 43 #include <sys/callout.h> 44 45 #include <machine/bus.h> 46 #include <machine/intr.h> 47 #include <machine/cpu.h> 48 #include <machine/viareg.h> 49 50 #include <mac68k/obio/obiovar.h> 51 52 #include <dev/ata/atavar.h> 53 #include <dev/ic/wdcvar.h> 54 55 #define WDC_OBIO_REG_NPORTS 0x40 56 #define WDC_OBIO_AUXREG_OFFSET 0x38 57 #define WDC_OBIO_AUXREG_NPORTS 1 58 #define WDC_OBIO_ISR_OFFSET 0x101 59 #define WDC_OBIO_ISR_NPORTS 1 60 61 static u_long IDEBase = 0x50f1a000; 62 63 /* 64 * XXX This code currently doesn't even try to allow 32-bit data port use. 65 */ 66 67 struct wdc_obio_softc { 68 struct wdc_softc sc_wdcdev; 69 struct wdc_channel *wdc_chanlist[1]; 70 struct wdc_channel wdc_channel; 71 struct ata_queue wdc_chqueue; 72 void *sc_ih; 73 }; 74 75 int wdc_obio_match (struct device *, struct cfdata *, void *); 76 void wdc_obio_attach (struct device *, struct device *, void *); 77 void wdc_obio_intr (void *); 78 79 CFATTACH_DECL(wdc_obio, sizeof(struct wdc_obio_softc), 80 wdc_obio_match, wdc_obio_attach, NULL, NULL); 81 82 int 83 wdc_obio_match(parent, match, aux) 84 struct device *parent; 85 struct cfdata *match; 86 void *aux; 87 { 88 struct obio_attach_args *oa = (struct obio_attach_args *) aux; 89 struct wdc_channel ch; 90 static int wdc_matched = 0; 91 int i, result = 0; 92 93 memset(&ch, 0, sizeof(ch)); 94 95 switch (current_mac_model->machineid) { 96 case MACH_MACPB150: 97 case MACH_MACPB190: 98 case MACH_MACPB190CS: 99 case MACH_MACP580: 100 case MACH_MACQ630: 101 ch.cmd_iot = ch.ctl_iot = oa->oa_tag; 102 103 if (bus_space_map(ch.cmd_iot, IDEBase, WDC_OBIO_REG_NPORTS, 104 0, &ch.cmd_baseioh)) 105 return 0; 106 107 mac68k_bus_space_handle_swapped(ch.cmd_iot, &ch.cmd_baseioh); 108 109 for (i = 0; i < WDC_NREG; i++) { 110 if (bus_space_subregion(ch.cmd_iot, ch.cmd_baseioh, 111 4 * i, 4, &ch.cmd_iohs[i]) != 0) { 112 return 0; 113 } 114 } 115 wdc_init_shadow_regs(&ch); 116 117 118 if (bus_space_subregion(ch.cmd_iot, ch.cmd_baseioh, 119 WDC_OBIO_AUXREG_OFFSET, 120 WDC_OBIO_AUXREG_NPORTS, 121 &ch.ctl_ioh)) 122 return 0; 123 124 result = wdcprobe(&ch); 125 126 bus_space_unmap(ch.cmd_iot, ch.cmd_baseioh, WDC_OBIO_REG_NPORTS); 127 128 if (result) 129 wdc_matched = 1; 130 return (result); 131 } 132 return 0; 133 } 134 135 static bus_space_tag_t wdc_obio_isr_tag; 136 static bus_space_handle_t wdc_obio_isr_hdl; 137 static struct wdc_channel *ch_sc = NULL; 138 139 void 140 wdc_obio_intr(arg) 141 void *arg; 142 { 143 unsigned char status; 144 145 status = bus_space_read_1(wdc_obio_isr_tag, 146 wdc_obio_isr_hdl, 0); 147 if (status & 0x20) { 148 wdcintr(ch_sc); 149 bus_space_write_1(wdc_obio_isr_tag, 150 wdc_obio_isr_hdl, 0, status&~0x20); 151 } 152 } 153 154 void 155 wdc_obio_attach(parent, self, aux) 156 struct device *parent; 157 struct device *self; 158 void *aux; 159 { 160 struct wdc_obio_softc *sc = (void *)self; 161 struct obio_attach_args *oa = aux; 162 struct wdc_channel *chp = &sc->wdc_channel; 163 int i; 164 165 oa->oa_addr = IDEBase; 166 sc->wdc_channel.cmd_iot = sc->wdc_channel.ctl_iot = oa->oa_tag; 167 168 if (bus_space_map(sc->wdc_channel.cmd_iot, oa->oa_addr, 169 WDC_OBIO_REG_NPORTS, 0, &sc->wdc_channel.cmd_baseioh)) { 170 printf("%s: couldn't map registers\n", 171 sc->sc_wdcdev.sc_dev.dv_xname); 172 return; 173 } 174 175 mac68k_bus_space_handle_swapped(sc->wdc_channel.cmd_iot, 176 &sc->wdc_channel.cmd_baseioh); 177 178 for (i = 0; i < WDC_NREG; i++) { 179 if (bus_space_subregion(sc->wdc_channel.cmd_iot, 180 sc->wdc_channel.cmd_baseioh, 4 * i, 4, 181 &sc->wdc_channel.cmd_iohs[i]) != 0) { 182 printf("%s: unable to subregion control register\n", 183 sc->sc_wdcdev.sc_dev.dv_xname); 184 return; 185 } 186 } 187 wdc_init_shadow_regs(&sc->wdc_channel); 188 189 if (bus_space_subregion(sc->wdc_channel.cmd_iot, 190 sc->wdc_channel.cmd_baseioh, 191 WDC_OBIO_AUXREG_OFFSET, WDC_OBIO_AUXREG_NPORTS, 192 &sc->wdc_channel.ctl_ioh)) { 193 printf("%s: unable to subregion aux register\n", 194 sc->sc_wdcdev.sc_dev.dv_xname); 195 return; 196 } 197 198 wdc_obio_isr_tag = oa->oa_tag; 199 200 if (bus_space_map(wdc_obio_isr_tag, 201 oa->oa_addr+WDC_OBIO_ISR_OFFSET, 202 WDC_OBIO_ISR_NPORTS, 0, &wdc_obio_isr_hdl)) { 203 printf("%s: couldn't map intr status register\n", 204 sc->sc_wdcdev.sc_dev.dv_xname); 205 return; 206 } 207 208 switch (current_mac_model->machineid) { 209 case MACH_MACP580: 210 case MACH_MACQ630: 211 /* 212 * Quadra/Performa IDE generates pseudo Nubus intr at slot F 213 */ 214 printf(" (Quadra/Performa series IDE interface)"); 215 216 add_nubus_intr(0xf, (void (*)(void*))wdc_obio_intr, (void *)sc); 217 218 break; 219 case MACH_MACPB150: 220 case MACH_MACPB190: 221 case MACH_MACPB190CS: 222 /* 223 * PowerBook IDE generates pseudo NuBus intr at slot C 224 */ 225 printf(" (PowerBook series IDE interface)"); 226 227 add_nubus_intr(0xc, (void (*)(void*))wdc_obio_intr, (void *)sc); 228 229 break; 230 } 231 232 ch_sc = chp; 233 if (sc->sc_wdcdev.sc_dev.dv_cfdata->cf_flags & WDC_CAPABILITY_NOIRQ) 234 sc->sc_wdcdev.cap |= WDC_CAPABILITY_NOIRQ; 235 sc->sc_wdcdev.cap |= WDC_CAPABILITY_DATA16; 236 sc->sc_wdcdev.PIO_cap = 0; 237 sc->wdc_chanlist[0] = chp; 238 sc->sc_wdcdev.channels = sc->wdc_chanlist; 239 sc->sc_wdcdev.nchannels = 1; 240 chp->ch_channel = 0; 241 chp->ch_wdc = &sc->sc_wdcdev; 242 chp->ch_queue = &sc->wdc_chqueue; 243 244 printf("\n"); 245 246 wdcattach(chp); 247 } 248
Indexes created Mon Sep 29 21:09:56 GMT 2025