sbc_obio.c revision 1.3
1 /* $NetBSD: sbc_obio.c,v 1.3 1997/04/07 05:56:28 scottr 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 <scsi/scsi_all.h> 44 #include <scsi/scsi_debug.h> 45 #include <scsi/scsiconf.h> 46 47 #include <dev/ic/ncr5380reg.h> 48 #include <dev/ic/ncr5380var.h> 49 50 #include <machine/cpu.h> 51 #include <machine/viareg.h> 52 53 #include "sbcreg.h" 54 #include "sbcvar.h" 55 56 /* 57 * From Guide to the Macintosh Family Hardware, pp. 137-143 58 * These are offsets from SCSIBase (see pmap_bootstrap.c) 59 */ 60 #define SBC_REG_OFS 0x10000 61 #define SBC_DMA_OFS 0x12000 62 #define SBC_HSK_OFS 0x06000 63 64 #define SBC_DMA_OFS_PB500 0x06000 65 66 #define SBC_REG_OFS_IIFX 0x08000 /* Just guessing... */ 67 #define SBC_DMA_OFS_IIFX 0x0c000 68 #define SBC_HSK_OFS_IIFX 0x0e000 69 70 #define SBC_REG_OFS_DUO2 0x00000 71 #define SBC_DMA_OFS_DUO2 0x02000 72 #define SBC_HSK_OFS_DUO2 0x04000 73 74 static int sbc_obio_match __P((struct device *, struct cfdata *, void *)); 75 static void sbc_obio_attach __P((struct device *, struct device *, void *)); 76 77 void sbc_intr_enable __P((struct ncr5380_softc *)); 78 void sbc_intr_disable __P((struct ncr5380_softc *)); 79 void sbc_obio_clrintr __P((struct ncr5380_softc *)); 80 81 struct cfattach sbc_obio_ca = { 82 sizeof(struct sbc_softc), sbc_obio_match, sbc_obio_attach 83 }; 84 85 static int 86 sbc_obio_match(parent, cf, args) 87 struct device *parent; 88 struct cfdata *cf; 89 void *args; 90 { 91 switch (current_mac_model->machineid) { 92 case MACH_MACIIFX: /* Note: the IIfx isn't (yet) supported. */ 93 break; 94 case MACH_MACPB210: 95 case MACH_MACPB230: 96 case MACH_MACPB250: 97 case MACH_MACPB270: 98 case MACH_MACPB280: 99 case MACH_MACPB280C: 100 if (cf->cf_unit == 1) 101 return 1; 102 /*FALLTHROUGH*/ 103 default: 104 if (cf->cf_unit == 0 && mac68k_machine.scsi80) 105 return 1; 106 } 107 return 0; 108 } 109 110 static void 111 sbc_obio_attach(parent, self, args) 112 struct device *parent, *self; 113 void *args; 114 { 115 struct sbc_softc *sc = (struct sbc_softc *) self; 116 struct ncr5380_softc *ncr_sc = (struct ncr5380_softc *) sc; 117 char bits[64]; 118 extern vm_offset_t SCSIBase; 119 120 /* Pull in the options flags. */ 121 sc->sc_options = ((ncr_sc->sc_dev.dv_cfdata->cf_flags | sbc_options) 122 & SBC_OPTIONS_MASK); 123 124 /* 125 * Set up offsets to 5380 registers and GLUE I/O space, and turn 126 * off options we know we can't support on certain models. 127 */ 128 switch (current_mac_model->machineid) { 129 case MACH_MACIIFX: /* Note: the IIfx isn't (yet) supported. */ 130 sc->sc_regs = (struct sbc_regs *)(SCSIBase + SBC_REG_OFS_IIFX); 131 sc->sc_drq_addr = (vm_offset_t)(SCSIBase + SBC_HSK_OFS_IIFX); 132 sc->sc_nodrq_addr = (vm_offset_t)(SCSIBase + SBC_DMA_OFS_IIFX); 133 sc->sc_options &= ~(SBC_INTR | SBC_RESELECT); 134 break; 135 case MACH_MACPB500: 136 sc->sc_regs = (struct sbc_regs *)(SCSIBase + SBC_REG_OFS); 137 sc->sc_drq_addr = (vm_offset_t)(SCSIBase + SBC_HSK_OFS); /*??*/ 138 sc->sc_nodrq_addr = (vm_offset_t)(SCSIBase + SBC_DMA_OFS_PB500); 139 sc->sc_options &= ~(SBC_INTR | SBC_RESELECT); 140 break; 141 case MACH_MACPB210: 142 case MACH_MACPB230: 143 case MACH_MACPB250: 144 case MACH_MACPB270: 145 case MACH_MACPB280: 146 case MACH_MACPB280C: 147 if (ncr_sc->sc_dev.dv_unit == 1) { 148 sc->sc_regs = (struct sbc_regs *)(0xfee00000 + SBC_REG_OFS_DUO2); 149 sc->sc_drq_addr = (vm_offset_t)(0xfee00000 + SBC_HSK_OFS_DUO2); 150 sc->sc_nodrq_addr = (vm_offset_t)(0xfee00000 + SBC_DMA_OFS_DUO2); 151 break; 152 } 153 /*FALLTHROUGH*/ 154 default: 155 sc->sc_regs = (struct sbc_regs *)(SCSIBase + SBC_REG_OFS); 156 sc->sc_drq_addr = (vm_offset_t)(SCSIBase + SBC_HSK_OFS); 157 sc->sc_nodrq_addr = (vm_offset_t)(SCSIBase + SBC_DMA_OFS); 158 break; 159 } 160 161 /* 162 * Fill in the prototype scsi_link. 163 */ 164 ncr_sc->sc_link.channel = SCSI_CHANNEL_ONLY_ONE; 165 ncr_sc->sc_link.adapter_softc = sc; 166 ncr_sc->sc_link.adapter_target = 7; 167 ncr_sc->sc_link.adapter = &sbc_ops; 168 ncr_sc->sc_link.device = &sbc_dev; 169 170 /* 171 * Initialize fields used by the MI code 172 */ 173 ncr_sc->sci_r0 = &sc->sc_regs->sci_pr0.sci_reg; 174 ncr_sc->sci_r1 = &sc->sc_regs->sci_pr1.sci_reg; 175 ncr_sc->sci_r2 = &sc->sc_regs->sci_pr2.sci_reg; 176 ncr_sc->sci_r3 = &sc->sc_regs->sci_pr3.sci_reg; 177 ncr_sc->sci_r4 = &sc->sc_regs->sci_pr4.sci_reg; 178 ncr_sc->sci_r5 = &sc->sc_regs->sci_pr5.sci_reg; 179 ncr_sc->sci_r6 = &sc->sc_regs->sci_pr6.sci_reg; 180 ncr_sc->sci_r7 = &sc->sc_regs->sci_pr7.sci_reg; 181 182 /* 183 * MD function pointers used by the MI code. 184 */ 185 if (sc->sc_options & SBC_PDMA) { 186 ncr_sc->sc_pio_out = sbc_pdma_out; 187 ncr_sc->sc_pio_in = sbc_pdma_in; 188 } else { 189 ncr_sc->sc_pio_out = ncr5380_pio_out; 190 ncr_sc->sc_pio_in = ncr5380_pio_in; 191 } 192 ncr_sc->sc_dma_alloc = NULL; 193 ncr_sc->sc_dma_free = NULL; 194 ncr_sc->sc_dma_poll = NULL; 195 ncr_sc->sc_intr_on = NULL; 196 ncr_sc->sc_intr_off = NULL; 197 ncr_sc->sc_dma_setup = NULL; 198 ncr_sc->sc_dma_start = NULL; 199 ncr_sc->sc_dma_eop = NULL; 200 ncr_sc->sc_dma_stop = NULL; 201 ncr_sc->sc_flags = 0; 202 ncr_sc->sc_min_dma_len = MIN_DMA_LEN; 203 204 if (sc->sc_options & SBC_INTR) { 205 ncr_sc->sc_dma_alloc = sbc_dma_alloc; 206 ncr_sc->sc_dma_free = sbc_dma_free; 207 ncr_sc->sc_dma_poll = sbc_dma_poll; 208 ncr_sc->sc_dma_setup = sbc_dma_setup; 209 ncr_sc->sc_dma_start = sbc_dma_start; 210 ncr_sc->sc_dma_eop = sbc_dma_eop; 211 ncr_sc->sc_dma_stop = sbc_dma_stop; 212 via2_register_irq(VIA2_SCSIDRQ, sbc_drq_intr, ncr_sc); 213 } 214 215 via2_register_irq(VIA2_SCSIIRQ, sbc_irq_intr, ncr_sc); 216 sc->sc_clrintr = sbc_obio_clrintr; 217 218 if ((sc->sc_options & SBC_RESELECT) == 0) 219 ncr_sc->sc_no_disconnect = 0xff; 220 221 if (sc->sc_options) 222 printf(": options=%s", bitmask_snprintf(sc->sc_options, 223 SBC_OPTIONS_BITS, bits, sizeof(bits))); 224 printf("\n"); 225 226 /* Enable SCSI interrupts through VIA2 */ 227 sbc_intr_enable(ncr_sc); 228 229 #ifdef SBC_DEBUG 230 if (sbc_debug) 231 printf("%s: softc=%p regs=%p\n", ncr_sc->sc_dev.dv_xname, 232 sc, sc->sc_regs); 233 ncr_sc->sc_link.flags |= sbc_link_flags; 234 #endif 235 236 /* 237 * Initialize the SCSI controller itself. 238 */ 239 ncr5380_init(ncr_sc); 240 ncr5380_reset_scsibus(ncr_sc); 241 config_found(self, &(ncr_sc->sc_link), scsiprint); 242 } 243 244 /* 245 * Interrupt support routines. 246 */ 247 void 248 sbc_intr_enable(ncr_sc) 249 struct ncr5380_softc *ncr_sc; 250 { 251 struct sbc_softc *sc = (struct sbc_softc *)ncr_sc; 252 int s, flags; 253 254 flags = V2IF_SCSIIRQ; 255 if (sc->sc_options & SBC_INTR) 256 flags |= V2IF_SCSIDRQ; 257 258 s = splhigh(); 259 if (VIA2 == VIA2OFF) 260 via2_reg(vIER) = 0x80 | flags; 261 else 262 via2_reg(rIER) = 0x80 | flags; 263 splx(s); 264 } 265 266 void 267 sbc_intr_disable(ncr_sc) 268 struct ncr5380_softc *ncr_sc; 269 { 270 struct sbc_softc *sc = (struct sbc_softc *)ncr_sc; 271 int s, flags; 272 273 flags = V2IF_SCSIIRQ; 274 if (sc->sc_options & SBC_INTR) 275 flags |= V2IF_SCSIDRQ; 276 277 s = splhigh(); 278 if (VIA2 == VIA2OFF) 279 via2_reg(vIER) = flags; 280 else 281 via2_reg(rIER) = flags; 282 splx(s); 283 } 284 285 void 286 sbc_obio_clrintr(ncr_sc) 287 struct ncr5380_softc *ncr_sc; 288 { 289 struct sbc_softc *sc = (struct sbc_softc *)ncr_sc; 290 int flags; 291 292 flags = V2IF_SCSIIRQ; 293 if (sc->sc_options & SBC_INTR) 294 flags |= V2IF_SCSIDRQ; 295 296 if (VIA2 == VIA2OFF) 297 via2_reg(vIFR) = 0x80 | flags; 298 else 299 via2_reg(rIFR) = 0x80 | flags; 300 } 301
Indexes created Mon Sep 29 03:10:08 GMT 2025