wdc_obio.c revision 1.8
1 /* $NetBSD: wdc_obio.c,v 1.8 2003/12/14 15:31:23 fredb 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 1.8 2003/12/14 15:31:23 fredb 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 channel_softc *wdc_chanptr; 70 struct channel_softc wdc_channel; 71 void *sc_ih; 72 }; 73 74 int wdc_obio_match (struct device *, struct cfdata *, void *); 75 void wdc_obio_attach (struct device *, struct device *, void *); 76 void wdc_obio_intr (void *); 77 78 CFATTACH_DECL(wdc_obio, sizeof(struct wdc_obio_softc), 79 wdc_obio_match, wdc_obio_attach, NULL, NULL); 80 81 int 82 wdc_obio_match(parent, match, aux) 83 struct device *parent; 84 struct cfdata *match; 85 void *aux; 86 { 87 struct obio_attach_args *oa = (struct obio_attach_args *) aux; 88 struct channel_softc ch; 89 static int wdc_matched = 0; 90 int i, result = 0; 91 92 memset(&ch, 0, sizeof(ch)); 93 94 switch (current_mac_model->machineid) { 95 case MACH_MACPB150: 96 case MACH_MACPB190: 97 case MACH_MACPB190CS: 98 case MACH_MACP580: 99 case MACH_MACQ630: 100 ch.cmd_iot = ch.ctl_iot = oa->oa_tag; 101 102 if (bus_space_map(ch.cmd_iot, IDEBase, WDC_OBIO_REG_NPORTS, 103 0, &ch.cmd_baseioh)) 104 return 0; 105 106 mac68k_bus_space_handle_swapped(ch.cmd_iot, &ch.cmd_baseioh); 107 108 for (i = 0; i < WDC_NREG; i++) { 109 if (bus_space_subregion(ch.cmd_iot, ch.cmd_baseioh, 110 4 * i, 4, &ch.cmd_iohs[i]) != 0) { 111 return 0; 112 } 113 } 114 115 116 if (bus_space_subregion(ch.cmd_iot, ch.cmd_baseioh, 117 WDC_OBIO_AUXREG_OFFSET, 118 WDC_OBIO_AUXREG_NPORTS, &ch.ctl_ioh)) 119 return 0; 120 121 result = wdcprobe(&ch); 122 123 bus_space_unmap(ch.cmd_iot, ch.cmd_baseioh, WDC_OBIO_REG_NPORTS); 124 125 if (result) 126 wdc_matched = 1; 127 return (result); 128 } 129 return 0; 130 } 131 132 static bus_space_tag_t wdc_obio_isr_tag; 133 static bus_space_handle_t wdc_obio_isr_hdl; 134 static struct channel_softc *ch_sc = NULL; 135 136 void 137 wdc_obio_intr(arg) 138 void *arg; 139 { 140 unsigned char status; 141 142 status = bus_space_read_1(wdc_obio_isr_tag, 143 wdc_obio_isr_hdl, 0); 144 if (status & 0x20) { 145 wdcintr(ch_sc); 146 bus_space_write_1(wdc_obio_isr_tag, 147 wdc_obio_isr_hdl, 0, status&~0x20); 148 } 149 } 150 151 void 152 wdc_obio_attach(parent, self, aux) 153 struct device *parent; 154 struct device *self; 155 void *aux; 156 { 157 struct wdc_obio_softc *sc = (void *)self; 158 struct obio_attach_args *oa = aux; 159 struct channel_softc *chp = &sc->wdc_channel; 160 int i; 161 162 oa->oa_addr = IDEBase; 163 sc->wdc_channel.cmd_iot = sc->wdc_channel.ctl_iot = oa->oa_tag; 164 165 if (bus_space_map(sc->wdc_channel.cmd_iot, oa->oa_addr, 166 WDC_OBIO_REG_NPORTS, 0, &sc->wdc_channel.cmd_baseioh)) { 167 printf("%s: couldn't map registers\n", 168 sc->sc_wdcdev.sc_dev.dv_xname); 169 return; 170 } 171 172 mac68k_bus_space_handle_swapped(sc->wdc_channel.cmd_iot, 173 &sc->wdc_channel.cmd_baseioh); 174 175 for (i = 0; i < WDC_NREG; i++) { 176 if (bus_space_subregion(sc->wdc_channel.cmd_iot, 177 sc->wdc_channel.cmd_baseioh, 4 * i, 4, 178 &sc->wdc_channel.cmd_iohs[i]) != 0) { 179 printf("%s: unable to subregion control register\n", 180 sc->sc_wdcdev.sc_dev.dv_xname); 181 return; 182 } 183 } 184 185 if (bus_space_subregion(sc->wdc_channel.cmd_iot, 186 sc->wdc_channel.cmd_baseioh, 187 WDC_OBIO_AUXREG_OFFSET, WDC_OBIO_AUXREG_NPORTS, 188 &sc->wdc_channel.ctl_ioh)) { 189 printf("%s: unable to subregion aux register\n", 190 sc->sc_wdcdev.sc_dev.dv_xname); 191 return; 192 } 193 194 wdc_obio_isr_tag = oa->oa_tag; 195 196 if (bus_space_map(wdc_obio_isr_tag, 197 oa->oa_addr+WDC_OBIO_ISR_OFFSET, 198 WDC_OBIO_ISR_NPORTS, 0, &wdc_obio_isr_hdl)) { 199 printf("%s: couldn't map intr status register\n", 200 sc->sc_wdcdev.sc_dev.dv_xname); 201 return; 202 } 203 204 switch (current_mac_model->machineid) { 205 case MACH_MACP580: 206 case MACH_MACQ630: 207 /* 208 * Quadra/Performa IDE generates pseudo Nubus intr at slot F 209 */ 210 printf(" (Quadra/Performa series IDE interface)"); 211 212 add_nubus_intr(0xf, (void (*)(void*))wdc_obio_intr, (void *)sc); 213 214 break; 215 case MACH_MACPB150: 216 case MACH_MACPB190: 217 case MACH_MACPB190CS: 218 /* 219 * PowerBook IDE generates pseudo NuBus intr at slot C 220 */ 221 printf(" (PowerBook series IDE interface)"); 222 223 add_nubus_intr(0xc, (void (*)(void*))wdc_obio_intr, (void *)sc); 224 225 break; 226 } 227 228 ch_sc = chp; 229 if (sc->sc_wdcdev.sc_dev.dv_cfdata->cf_flags & WDC_CAPABILITY_NOIRQ) 230 sc->sc_wdcdev.cap |= WDC_CAPABILITY_NOIRQ; 231 sc->sc_wdcdev.cap |= WDC_CAPABILITY_DATA16; 232 sc->sc_wdcdev.PIO_cap = 0; 233 sc->wdc_chanptr = chp; 234 sc->sc_wdcdev.channels = &sc->wdc_chanptr; 235 sc->sc_wdcdev.nchannels = 1; 236 chp->channel = 0; 237 chp->wdc = &sc->sc_wdcdev; 238 chp->ch_queue = malloc(sizeof(struct channel_queue), M_DEVBUF, M_NOWAIT); 239 240 if (chp->ch_queue == NULL) { 241 printf("%s: can't allocate memory for command queue", 242 sc->sc_wdcdev.sc_dev.dv_xname); 243 return; 244 } 245 246 printf("\n"); 247 248 wdcattach(chp); 249 } 250
Indexes created Mon Sep 29 21:09:56 GMT 2025