wdc_obio.c revision 1.1
1 /* $NetBSD: wdc_obio.c,v 1.1 2002/04/27 19:29:09 shiba 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/types.h> 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/device.h> 38 #include <sys/malloc.h> 39 #include <sys/kernel.h> 40 #include <sys/callout.h> 41 42 #include <machine/bus.h> 43 #include <machine/intr.h> 44 #include <machine/cpu.h> 45 #include <machine/viareg.h> 46 47 #include <mac68k/obio/obiovar.h> 48 49 #include <dev/ata/atavar.h> 50 #include <dev/ic/wdcvar.h> 51 52 #define WDC_OBIO_REG_NPORTS (8<<3) 53 #define WDC_OBIO_AUXREG_OFFSET 0x38 54 #define WDC_OBIO_AUXREG_NPORTS 1 55 #define WDC_OBIO_ISR_OFFSET 0x101 56 #define WDC_OBIO_ISR_NPORTS 1 57 58 static u_long IDEBase = 0x50f1a000; 59 60 /* 61 * XXX This code currently doesn't even try to allow 32-bit data port use. 62 */ 63 64 struct wdc_obio_softc { 65 struct wdc_softc sc_wdcdev; 66 struct channel_softc *wdc_chanptr; 67 struct channel_softc wdc_channel; 68 void *sc_ih; 69 }; 70 71 int wdc_obio_match __P((struct device *, struct cfdata *, void *)); 72 void wdc_obio_attach __P((struct device *, struct device *, void *)); 73 void wdc_obio_intr __P((void *)); 74 void mac68k_bsh_wdc_set_stride __P((bus_space_tag_t t, 75 bus_space_handle_t *h, int stride)); 76 u_int16_t mac68k_bsr2_wdc_gen __P((bus_space_tag_t t, 77 bus_space_handle_t *bsh, bus_size_t offset)); 78 79 struct cfattach wdc_obio_ca = { 80 sizeof(struct wdc_obio_softc), wdc_obio_match, wdc_obio_attach 81 }; 82 83 int 84 wdc_obio_match(parent, match, aux) 85 struct device *parent; 86 struct cfdata *match; 87 void *aux; 88 { 89 struct obio_attach_args *oa = (struct obio_attach_args *) aux; 90 struct channel_softc ch; 91 static int wdc_matched = 0; 92 int result = 0; 93 94 memset(&ch, 0, sizeof(ch)); 95 96 switch (current_mac_model->machineid) { 97 case MACH_MACPB150: 98 case MACH_MACPB190: 99 case MACH_MACPB190CS: 100 case MACH_MACP580: 101 case MACH_MACQ630: 102 ch.cmd_iot = ch.ctl_iot = oa->oa_tag; 103 104 if (bus_space_map(ch.cmd_iot, IDEBase, WDC_OBIO_REG_NPORTS, 105 0, &ch.cmd_ioh)) 106 return 0; 107 108 mac68k_bsh_wdc_set_stride(ch.cmd_iot, &ch.cmd_ioh, 4); 109 110 if (bus_space_subregion(ch.cmd_iot, ch.cmd_ioh, 111 WDC_OBIO_AUXREG_OFFSET, 112 WDC_OBIO_AUXREG_NPORTS, &ch.ctl_ioh)) 113 return 0; 114 115 result = wdcprobe(&ch); 116 117 bus_space_unmap(ch.cmd_iot, ch.cmd_ioh, WDC_OBIO_REG_NPORTS); 118 119 if (result) 120 wdc_matched = 1; 121 return (result); 122 } 123 return 0; 124 } 125 126 static bus_space_tag_t wdc_obio_isr_tag; 127 static bus_space_handle_t wdc_obio_isr_hdl; 128 static struct channel_softc *ch_sc = NULL; 129 130 void 131 wdc_obio_intr(arg) 132 void *arg; 133 { 134 unsigned char status; 135 136 status = bus_space_read_1(wdc_obio_isr_tag, 137 wdc_obio_isr_hdl, 0); 138 if (status & 0x20) { 139 wdcintr(ch_sc); 140 bus_space_write_1(wdc_obio_isr_tag, 141 wdc_obio_isr_hdl, 0, status&~0x20); 142 } 143 } 144 145 void 146 wdc_obio_attach(parent, self, aux) 147 struct device *parent; 148 struct device *self; 149 void *aux; 150 { 151 struct wdc_obio_softc *sc = (void *)self; 152 struct obio_attach_args *oa = aux; 153 struct channel_softc *chp = &sc->wdc_channel; 154 155 oa->oa_addr = IDEBase; 156 sc->wdc_channel.cmd_iot = sc->wdc_channel.ctl_iot = oa->oa_tag; 157 158 if (bus_space_map(sc->wdc_channel.cmd_iot, oa->oa_addr, 159 WDC_OBIO_REG_NPORTS, 0, &sc->wdc_channel.cmd_ioh)) { 160 printf("%s: couldn't map registers\n", 161 sc->sc_wdcdev.sc_dev.dv_xname); 162 return; 163 } 164 165 mac68k_bsh_wdc_set_stride(sc->wdc_channel.cmd_iot, 166 &sc->wdc_channel.cmd_ioh, 4); 167 168 if (bus_space_subregion(sc->wdc_channel.cmd_iot, 169 sc->wdc_channel.cmd_ioh, WDC_OBIO_AUXREG_OFFSET, 170 WDC_OBIO_AUXREG_NPORTS, 171 &sc->wdc_channel.ctl_ioh)) 172 return; 173 174 wdc_obio_isr_tag = oa->oa_tag; 175 176 if (bus_space_map(wdc_obio_isr_tag, 177 oa->oa_addr+WDC_OBIO_ISR_OFFSET, 178 WDC_OBIO_ISR_NPORTS, 0, &wdc_obio_isr_hdl)) { 179 printf("%s: couldn't map intr status register\n", 180 sc->sc_wdcdev.sc_dev.dv_xname); 181 return; 182 } 183 184 switch (current_mac_model->machineid) { 185 case MACH_MACP580: 186 case MACH_MACQ630: 187 /* 188 * Quadra/Performa IDE generates pseudo Nubus intr at slot F 189 */ 190 printf(" (Quadra/Performa series IDE interface)"); 191 192 add_nubus_intr(0xf, (void (*)(void*))wdc_obio_intr, (void *)sc); 193 194 break; 195 case MACH_MACPB150: 196 case MACH_MACPB190: 197 case MACH_MACPB190CS: 198 /* 199 * PowerBook IDE generates pseudo NuBus intr at slot C 200 */ 201 printf(" (PowerBook series IDE interface)"); 202 203 add_nubus_intr(0xc, (void (*)(void*))wdc_obio_intr, (void *)sc); 204 205 break; 206 } 207 208 ch_sc = chp; 209 if (sc->sc_wdcdev.sc_dev.dv_cfdata->cf_flags & WDC_CAPABILITY_NOIRQ) 210 sc->sc_wdcdev.cap |= WDC_CAPABILITY_NOIRQ; 211 sc->sc_wdcdev.cap |= WDC_CAPABILITY_DATA16; 212 sc->sc_wdcdev.PIO_cap = 0; 213 sc->wdc_chanptr = chp; 214 sc->sc_wdcdev.channels = &sc->wdc_chanptr; 215 sc->sc_wdcdev.nchannels = 1; 216 chp->channel = 0; 217 chp->wdc = &sc->sc_wdcdev; 218 chp->ch_queue = malloc(sizeof(struct channel_queue), M_DEVBUF, M_NOWAIT); 219 220 if (chp->ch_queue == NULL) { 221 printf("%s: can't allocate memory for command queue", 222 sc->sc_wdcdev.sc_dev.dv_xname); 223 return; 224 } 225 226 printf("\n"); 227 228 wdcattach(chp); 229 } 230 231 u_int16_t 232 mac68k_bsr2_wdc_gen(bus_space_tag_t t, bus_space_handle_t *bsh, bus_size_t offset) 233 { 234 return (*(volatile u_int16_t *) (bsh->base + offset * bsh->stride)); 235 } 236 237 void 238 mac68k_bsh_wdc_set_stride(bus_space_tag_t t, bus_space_handle_t *h, int stride) 239 { 240 h->stride = stride; 241 h->bsr1 = mac68k_bsr1_gen; 242 h->bsr2 = mac68k_bsr2_wdc_gen; 243 h->bsr4 = mac68k_bsr4_gen; 244 h->bsrs2 = mac68k_bsrs2_gen; 245 h->bsrs4 = mac68k_bsrs4_gen; 246 h->bsrm1 = mac68k_bsrm1_gen; 247 h->bsrm2 = mac68k_bsrm2_swap; 248 h->bsrm4 = mac68k_bsrm4_swap; 249 h->bsrms2 = mac68k_bsrm2; 250 h->bsrms4 = mac68k_bsrm4; 251 h->bsrr1 = mac68k_bsrr1_gen; 252 h->bsrr2 = mac68k_bsrr2_gen; 253 h->bsrr4 = mac68k_bsrr4_gen; 254 h->bsrrs2 = mac68k_bsrrs2_gen; 255 h->bsrrs4 = mac68k_bsrrs4_gen; 256 h->bsw1 = mac68k_bsw1_gen; 257 h->bsw2 = mac68k_bsw2_gen; 258 h->bsw4 = mac68k_bsw4_gen; 259 h->bsws2 = mac68k_bsws2_gen; 260 h->bsws4 = mac68k_bsws4_gen; 261 h->bswm2 = mac68k_bswm2_swap; 262 h->bswm4 = mac68k_bswm4_swap; 263 h->bswms2 = mac68k_bswm2; 264 h->bswms4 = mac68k_bswm4; 265 h->bswr1 = mac68k_bswr1_gen; 266 h->bswr2 = mac68k_bswr2_gen; 267 h->bswr4 = mac68k_bswr4_gen; 268 h->bswrs2 = mac68k_bswrs2_gen; 269 h->bswrs4 = mac68k_bswrs4_gen; 270 h->bssm1 = mac68k_bssm1_gen; 271 h->bssm2 = mac68k_bssm2_gen; 272 h->bssm4 = mac68k_bssm4_gen; 273 h->bssr1 = mac68k_bssr1_gen; 274 h->bssr2 = mac68k_bssr2_gen; 275 h->bssr4 = mac68k_bssr4_gen; 276 } 277
Indexes created Mon Sep 29 13:09:55 GMT 2025