sbc_obio.c revision 1.3.4.2
1 /* $NetBSD: sbc_obio.c,v 1.3.4.2 1997/08/27 22:27:50 thorpej Exp $ */ 2 3 /* 4 * Copyright (C) 1996,1997 Scott Reynolds. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Scott Reynolds for 17 * the NetBSD Project. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <sys/types.h> 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/kernel.h> 37 #include <sys/errno.h> 38 #include <sys/device.h> 39 #include <sys/buf.h> 40 #include <sys/proc.h> 41 #include <sys/user.h> 42 43 #include <dev/scsipi/scsi_all.h> 44 #include <dev/scsipi/scsipi_all.h> 45 #include <dev/scsipi/scsipi_debug.h> 46 #include <dev/scsipi/scsiconf.h> 47 48 #include <dev/ic/ncr5380reg.h> 49 #include <dev/ic/ncr5380var.h> 50 51 #include <machine/cpu.h> 52 #include <machine/viareg.h> 53 54 #include <mac68k/dev/sbcreg.h> 55 #include <mac68k/dev/sbcvar.h> 56 57 /* 58 * From Guide to the Macintosh Family Hardware, pp. 137-143 59 * These are offsets from SCSIBase (see pmap_bootstrap.c) 60 */ 61 #define SBC_REG_OFS 0x10000 62 #define SBC_DMA_OFS 0x12000 63 #define SBC_HSK_OFS 0x06000 64 65 #define SBC_DMA_OFS_PB500 0x06000 66 67 #define SBC_REG_OFS_IIFX 0x08000 /* Just guessing... */ 68 #define SBC_DMA_OFS_IIFX 0x0c000 69 #define SBC_HSK_OFS_IIFX 0x0e000 70 71 #define SBC_REG_OFS_DUO2 0x00000 72 #define SBC_DMA_OFS_DUO2 0x02000 73 #define SBC_HSK_OFS_DUO2 0x04000 74 75 static int sbc_obio_match __P((struct device *, struct cfdata *, void *)); 76 static void sbc_obio_attach __P((struct device *, struct device *, void *)); 77 78 void sbc_intr_enable __P((struct ncr5380_softc *)); 79 void sbc_intr_disable __P((struct ncr5380_softc *)); 80 void sbc_obio_clrintr __P((struct ncr5380_softc *)); 81 82 struct cfattach sbc_obio_ca = { 83 sizeof(struct sbc_softc), sbc_obio_match, sbc_obio_attach 84 }; 85 86 static int 87 sbc_obio_match(parent, cf, args) 88 struct device *parent; 89 struct cfdata *cf; 90 void *args; 91 { 92 switch (current_mac_model->machineid) { 93 case MACH_MACIIFX: /* Note: the IIfx isn't (yet) supported. */ 94 break; 95 case MACH_MACPB210: 96 case MACH_MACPB230: 97 case MACH_MACPB250: 98 case MACH_MACPB270: 99 case MACH_MACPB280: 100 case MACH_MACPB280C: 101 if (cf->cf_unit == 1) 102 return 1; 103 /*FALLTHROUGH*/ 104 default: 105 if (cf->cf_unit == 0 && mac68k_machine.scsi80) 106 return 1; 107 } 108 return 0; 109 } 110 111 static void 112 sbc_obio_attach(parent, self, args) 113 struct device *parent, *self; 114 void *args; 115 { 116 struct sbc_softc *sc = (struct sbc_softc *) self; 117 struct ncr5380_softc *ncr_sc = (struct ncr5380_softc *) sc; 118 char bits[64]; 119 extern vm_offset_t SCSIBase; 120 121 /* Pull in the options flags. */ 122 sc->sc_options = ((ncr_sc->sc_dev.dv_cfdata->cf_flags | sbc_options) 123 & SBC_OPTIONS_MASK); 124 125 /* 126 * Set up offsets to 5380 registers and GLUE I/O space, and turn 127 * off options we know we can't support on certain models. 128 */ 129 switch (current_mac_model->machineid) { 130 case MACH_MACIIFX: /* Note: the IIfx isn't (yet) supported. */ 131 sc->sc_regs = (struct sbc_regs *)(SCSIBase + SBC_REG_OFS_IIFX); 132 sc->sc_drq_addr = (vm_offset_t)(SCSIBase + SBC_HSK_OFS_IIFX); 133 sc->sc_nodrq_addr = (vm_offset_t)(SCSIBase + SBC_DMA_OFS_IIFX); 134 sc->sc_options &= ~(SBC_INTR | SBC_RESELECT); 135 break; 136 case MACH_MACPB500: 137 sc->sc_regs = (struct sbc_regs *)(SCSIBase + SBC_REG_OFS); 138 sc->sc_drq_addr = (vm_offset_t)(SCSIBase + SBC_HSK_OFS); /*??*/ 139 sc->sc_nodrq_addr = (vm_offset_t)(SCSIBase + SBC_DMA_OFS_PB500); 140 sc->sc_options &= ~(SBC_INTR | SBC_RESELECT); 141 break; 142 case MACH_MACPB210: 143 case MACH_MACPB230: 144 case MACH_MACPB250: 145 case MACH_MACPB270: 146 case MACH_MACPB280: 147 case MACH_MACPB280C: 148 if (ncr_sc->sc_dev.dv_unit == 1) { 149 sc->sc_regs = (struct sbc_regs *)(0xfee00000 + SBC_REG_OFS_DUO2); 150 sc->sc_drq_addr = (vm_offset_t)(0xfee00000 + SBC_HSK_OFS_DUO2); 151 sc->sc_nodrq_addr = (vm_offset_t)(0xfee00000 + SBC_DMA_OFS_DUO2); 152 break; 153 } 154 /*FALLTHROUGH*/ 155 default: 156 sc->sc_regs = (struct sbc_regs *)(SCSIBase + SBC_REG_OFS); 157 sc->sc_drq_addr = (vm_offset_t)(SCSIBase + SBC_HSK_OFS); 158 sc->sc_nodrq_addr = (vm_offset_t)(SCSIBase + SBC_DMA_OFS); 159 break; 160 } 161 162 /* 163 * Fill in the prototype scsi_link. 164 */ 165 ncr_sc->sc_link.scsipi_scsi.channel = SCSI_CHANNEL_ONLY_ONE; 166 ncr_sc->sc_link.adapter_softc = sc; 167 ncr_sc->sc_link.scsipi_scsi.adapter_target = 7; 168 ncr_sc->sc_link.adapter = &sbc_ops; 169 ncr_sc->sc_link.device = &sbc_dev; 170 ncr_sc->sc_link.type = BUS_SCSI; 171 172 /* 173 * Initialize fields used by the MI code 174 */ 175 ncr_sc->sci_r0 = &sc->sc_regs->sci_pr0.sci_reg; 176 ncr_sc->sci_r1 = &sc->sc_regs->sci_pr1.sci_reg; 177 ncr_sc->sci_r2 = &sc->sc_regs->sci_pr2.sci_reg; 178 ncr_sc->sci_r3 = &sc->sc_regs->sci_pr3.sci_reg; 179 ncr_sc->sci_r4 = &sc->sc_regs->sci_pr4.sci_reg; 180 ncr_sc->sci_r5 = &sc->sc_regs->sci_pr5.sci_reg; 181 ncr_sc->sci_r6 = &sc->sc_regs->sci_pr6.sci_reg; 182 ncr_sc->sci_r7 = &sc->sc_regs->sci_pr7.sci_reg; 183 184 /* 185 * MD function pointers used by the MI code. 186 */ 187 if (sc->sc_options & SBC_PDMA) { 188 ncr_sc->sc_pio_out = sbc_pdma_out; 189 ncr_sc->sc_pio_in = sbc_pdma_in; 190 } else { 191 ncr_sc->sc_pio_out = ncr5380_pio_out; 192 ncr_sc->sc_pio_in = ncr5380_pio_in; 193 } 194 ncr_sc->sc_dma_alloc = NULL; 195 ncr_sc->sc_dma_free = NULL; 196 ncr_sc->sc_dma_poll = NULL; 197 ncr_sc->sc_intr_on = NULL; 198 ncr_sc->sc_intr_off = NULL; 199 ncr_sc->sc_dma_setup = NULL; 200 ncr_sc->sc_dma_start = NULL; 201 ncr_sc->sc_dma_eop = NULL; 202 ncr_sc->sc_dma_stop = NULL; 203 ncr_sc->sc_flags = 0; 204 ncr_sc->sc_min_dma_len = MIN_DMA_LEN; 205 206 if (sc->sc_options & SBC_INTR) { 207 ncr_sc->sc_dma_alloc = sbc_dma_alloc; 208 ncr_sc->sc_dma_free = sbc_dma_free; 209 ncr_sc->sc_dma_poll = sbc_dma_poll; 210 ncr_sc->sc_dma_setup = sbc_dma_setup; 211 ncr_sc->sc_dma_start = sbc_dma_start; 212 ncr_sc->sc_dma_eop = sbc_dma_eop; 213 ncr_sc->sc_dma_stop = sbc_dma_stop; 214 via2_register_irq(VIA2_SCSIDRQ, sbc_drq_intr, ncr_sc); 215 } 216 217 via2_register_irq(VIA2_SCSIIRQ, sbc_irq_intr, ncr_sc); 218 sc->sc_clrintr = sbc_obio_clrintr; 219 220 if ((sc->sc_options & SBC_RESELECT) == 0) 221 ncr_sc->sc_no_disconnect = 0xff; 222 223 if (sc->sc_options) 224 printf(": options=%s", bitmask_snprintf(sc->sc_options, 225 SBC_OPTIONS_BITS, bits, sizeof(bits))); 226 printf("\n"); 227 228 /* Enable SCSI interrupts through VIA2 */ 229 sbc_intr_enable(ncr_sc); 230 231 #ifdef SBC_DEBUG 232 if (sbc_debug) 233 printf("%s: softc=%p regs=%p\n", ncr_sc->sc_dev.dv_xname, 234 sc, sc->sc_regs); 235 ncr_sc->sc_link.flags |= sbc_link_flags; 236 #endif 237 238 /* 239 * Initialize the SCSI controller itself. 240 */ 241 ncr5380_init(ncr_sc); 242 ncr5380_reset_scsibus(ncr_sc); 243 config_found(self, &(ncr_sc->sc_link), scsiprint); 244 } 245 246 /* 247 * Interrupt support routines. 248 */ 249 void 250 sbc_intr_enable(ncr_sc) 251 struct ncr5380_softc *ncr_sc; 252 { 253 struct sbc_softc *sc = (struct sbc_softc *)ncr_sc; 254 int s, flags; 255 256 flags = V2IF_SCSIIRQ; 257 if (sc->sc_options & SBC_INTR) 258 flags |= V2IF_SCSIDRQ; 259 260 s = splhigh(); 261 if (VIA2 == VIA2OFF) 262 via2_reg(vIER) = 0x80 | flags; 263 else 264 via2_reg(rIER) = 0x80 | flags; 265 splx(s); 266 } 267 268 void 269 sbc_intr_disable(ncr_sc) 270 struct ncr5380_softc *ncr_sc; 271 { 272 struct sbc_softc *sc = (struct sbc_softc *)ncr_sc; 273 int s, flags; 274 275 flags = V2IF_SCSIIRQ; 276 if (sc->sc_options & SBC_INTR) 277 flags |= V2IF_SCSIDRQ; 278 279 s = splhigh(); 280 if (VIA2 == VIA2OFF) 281 via2_reg(vIER) = flags; 282 else 283 via2_reg(rIER) = flags; 284 splx(s); 285 } 286 287 void 288 sbc_obio_clrintr(ncr_sc) 289 struct ncr5380_softc *ncr_sc; 290 { 291 struct sbc_softc *sc = (struct sbc_softc *)ncr_sc; 292 int flags; 293 294 flags = V2IF_SCSIIRQ; 295 if (sc->sc_options & SBC_INTR) 296 flags |= V2IF_SCSIDRQ; 297 298 if (VIA2 == VIA2OFF) 299 via2_reg(vIFR) = 0x80 | flags; 300 else 301 via2_reg(rIFR) = 0x80 | flags; 302 } 303
Indexes created Sat Oct 25 16:10:12 GMT 2025