sbc_obio.c revision 1.20
1 /* $NetBSD: sbc_obio.c,v 1.20 2005/03/05 17:40:56 chs 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. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: sbc_obio.c,v 1.20 2005/03/05 17:40:56 chs Exp $"); 31 32 #include <sys/types.h> 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/kernel.h> 36 #include <sys/errno.h> 37 #include <sys/device.h> 38 #include <sys/buf.h> 39 #include <sys/proc.h> 40 #include <sys/user.h> 41 42 #include <dev/scsipi/scsi_all.h> 43 #include <dev/scsipi/scsipi_all.h> 44 #include <dev/scsipi/scsipi_debug.h> 45 #include <dev/scsipi/scsiconf.h> 46 47 #include <dev/ic/ncr5380reg.h> 48 #include <dev/ic/ncr5380var.h> 49 50 #include <machine/cpu.h> 51 #include <machine/bus.h> 52 #include <machine/viareg.h> 53 54 #include <mac68k/dev/sbcreg.h> 55 #include <mac68k/dev/sbcvar.h> 56 57 #include <mac68k/obio/obiovar.h> 58 59 /* 60 * From Guide to the Macintosh Family Hardware, pp. 137-143 61 * These are offsets from SCSIBase (see pmap_bootstrap.c) 62 */ 63 #define SBC_REG_OFS 0x10000 64 #define SBC_DMA_OFS 0x12000 65 #define SBC_HSK_OFS 0x06000 66 67 #define SBC_DMA_OFS_PB500 0x06000 68 69 #define SBC_REG_OFS_IIFX 0x08000 /* Just guessing... */ 70 #define SBC_DMA_OFS_IIFX 0x0c000 71 #define SBC_HSK_OFS_IIFX 0x0e000 72 73 #define SBC_REG_OFS_DUO2 0x00000 74 #define SBC_DMA_OFS_DUO2 0x02000 75 #define SBC_HSK_OFS_DUO2 0x04000 76 77 static int sbc_obio_match(struct device *, struct cfdata *, void *); 78 static void sbc_obio_attach(struct device *, struct device *, void *); 79 80 void sbc_intr_enable(struct ncr5380_softc *); 81 void sbc_intr_disable(struct ncr5380_softc *); 82 void sbc_obio_clrintr(struct ncr5380_softc *); 83 84 CFATTACH_DECL(sbc_obio, sizeof(struct sbc_softc), 85 sbc_obio_match, sbc_obio_attach, NULL, NULL); 86 87 static int 88 sbc_obio_match(struct device *parent, struct cfdata *cf, void *aux) 89 { 90 struct obio_attach_args *oa = (struct obio_attach_args *)aux; 91 92 switch (current_mac_model->machineid) { 93 case MACH_MACIIFX: /* Note: the IIfx isn't (yet) supported. */ 94 if (oa->oa_addr == 0) 95 return 1; 96 break; 97 98 case MACH_MACPB210: 99 case MACH_MACPB230: 100 case MACH_MACPB250: 101 case MACH_MACPB270: 102 case MACH_MACPB280: 103 case MACH_MACPB280C: 104 if (oa->oa_addr == 1) 105 return 1; 106 /*FALLTHROUGH*/ 107 default: 108 if (oa->oa_addr == 0 && mac68k_machine.scsi80) 109 return 1; 110 } 111 return 0; 112 } 113 114 static void 115 sbc_obio_attach(struct device *parent, struct device *self, void *aux) 116 { 117 struct sbc_softc *sc = (struct sbc_softc *) self; 118 struct ncr5380_softc *ncr_sc = (struct ncr5380_softc *) sc; 119 struct obio_attach_args *oa = (struct obio_attach_args *)aux; 120 char bits[64]; 121 extern vaddr_t SCSIBase; 122 123 /* Pull in the options flags. */ 124 sc->sc_options = ((ncr_sc->sc_dev.dv_cfdata->cf_flags | sbc_options) 125 & SBC_OPTIONS_MASK); 126 127 /* 128 * Set up offsets to 5380 registers and GLUE I/O space, and turn 129 * off options we know we can't support on certain models. 130 */ 131 switch (current_mac_model->machineid) { 132 case MACH_MACIIFX: /* Note: the IIfx isn't (yet) supported. */ 133 sc->sc_regs = (struct sbc_regs *)(SCSIBase + SBC_REG_OFS_IIFX); 134 sc->sc_drq_addr = (vaddr_t)(SCSIBase + SBC_HSK_OFS_IIFX); 135 sc->sc_nodrq_addr = (vaddr_t)(SCSIBase + SBC_DMA_OFS_IIFX); 136 sc->sc_options &= ~(SBC_INTR | SBC_RESELECT); 137 break; 138 case MACH_MACPB500: 139 sc->sc_regs = (struct sbc_regs *)(SCSIBase + SBC_REG_OFS); 140 sc->sc_drq_addr = (vaddr_t)(SCSIBase + SBC_HSK_OFS); /*??*/ 141 sc->sc_nodrq_addr = (vaddr_t)(SCSIBase + SBC_DMA_OFS_PB500); 142 sc->sc_options &= ~(SBC_INTR | SBC_RESELECT); 143 break; 144 case MACH_MACPB210: 145 case MACH_MACPB230: 146 case MACH_MACPB250: 147 case MACH_MACPB270: 148 case MACH_MACPB280: 149 case MACH_MACPB280C: 150 if (oa->oa_addr == 1) { 151 sc->sc_regs = (struct sbc_regs *)(0xfee00000 + SBC_REG_OFS_DUO2); 152 sc->sc_drq_addr = (vaddr_t)(0xfee00000 + SBC_HSK_OFS_DUO2); 153 sc->sc_nodrq_addr = (vaddr_t)(0xfee00000 + SBC_DMA_OFS_DUO2); 154 break; 155 } 156 /*FALLTHROUGH*/ 157 default: 158 sc->sc_regs = (struct sbc_regs *)(SCSIBase + SBC_REG_OFS); 159 sc->sc_drq_addr = (vaddr_t)(SCSIBase + SBC_HSK_OFS); 160 sc->sc_nodrq_addr = (vaddr_t)(SCSIBase + SBC_DMA_OFS); 161 break; 162 } 163 164 /* 165 * Initialize fields used by the MI code 166 */ 167 ncr_sc->sci_r0 = &sc->sc_regs->sci_pr0.sci_reg; 168 ncr_sc->sci_r1 = &sc->sc_regs->sci_pr1.sci_reg; 169 ncr_sc->sci_r2 = &sc->sc_regs->sci_pr2.sci_reg; 170 ncr_sc->sci_r3 = &sc->sc_regs->sci_pr3.sci_reg; 171 ncr_sc->sci_r4 = &sc->sc_regs->sci_pr4.sci_reg; 172 ncr_sc->sci_r5 = &sc->sc_regs->sci_pr5.sci_reg; 173 ncr_sc->sci_r6 = &sc->sc_regs->sci_pr6.sci_reg; 174 ncr_sc->sci_r7 = &sc->sc_regs->sci_pr7.sci_reg; 175 176 ncr_sc->sc_rev = NCR_VARIANT_NCR5380; 177 178 /* 179 * MD function pointers used by the MI code. 180 */ 181 if (sc->sc_options & SBC_PDMA) { 182 ncr_sc->sc_pio_out = sbc_pdma_out; 183 ncr_sc->sc_pio_in = sbc_pdma_in; 184 } else { 185 ncr_sc->sc_pio_out = ncr5380_pio_out; 186 ncr_sc->sc_pio_in = ncr5380_pio_in; 187 } 188 ncr_sc->sc_dma_alloc = NULL; 189 ncr_sc->sc_dma_free = NULL; 190 ncr_sc->sc_dma_poll = NULL; 191 ncr_sc->sc_intr_on = NULL; 192 ncr_sc->sc_intr_off = NULL; 193 ncr_sc->sc_dma_setup = NULL; 194 ncr_sc->sc_dma_start = NULL; 195 ncr_sc->sc_dma_eop = NULL; 196 ncr_sc->sc_dma_stop = NULL; 197 ncr_sc->sc_flags = 0; 198 ncr_sc->sc_min_dma_len = MIN_DMA_LEN; 199 200 if (sc->sc_options & SBC_INTR) { 201 ncr_sc->sc_dma_alloc = sbc_dma_alloc; 202 ncr_sc->sc_dma_free = sbc_dma_free; 203 ncr_sc->sc_dma_poll = sbc_dma_poll; 204 ncr_sc->sc_dma_setup = sbc_dma_setup; 205 ncr_sc->sc_dma_start = sbc_dma_start; 206 ncr_sc->sc_dma_eop = sbc_dma_eop; 207 ncr_sc->sc_dma_stop = sbc_dma_stop; 208 via2_register_irq(VIA2_SCSIDRQ, sbc_drq_intr, ncr_sc); 209 } 210 211 via2_register_irq(VIA2_SCSIIRQ, sbc_irq_intr, ncr_sc); 212 sc->sc_clrintr = sbc_obio_clrintr; 213 214 if ((sc->sc_options & SBC_RESELECT) == 0) 215 ncr_sc->sc_no_disconnect = 0xff; 216 217 if (sc->sc_options) 218 printf(": options=%s", bitmask_snprintf(sc->sc_options, 219 SBC_OPTIONS_BITS, bits, sizeof(bits))); 220 printf("\n"); 221 222 if (sc->sc_options & (SBC_INTR|SBC_RESELECT)) { 223 /* Enable SCSI interrupts through VIA2 */ 224 sbc_intr_enable(ncr_sc); 225 } 226 227 #ifdef SBC_DEBUG 228 if (sbc_debug) 229 printf("%s: softc=%p regs=%p\n", ncr_sc->sc_dev.dv_xname, 230 sc, sc->sc_regs); 231 #endif 232 233 ncr_sc->sc_channel.chan_id = 7; 234 ncr_sc->sc_adapter.adapt_minphys = minphys; 235 236 /* 237 * Initialize the SCSI controller itself. 238 */ 239 ncr5380_attach(ncr_sc); 240 } 241 242 /* 243 * Interrupt support routines. 244 */ 245 void 246 sbc_intr_enable(struct ncr5380_softc *ncr_sc) 247 { 248 struct sbc_softc *sc = (struct sbc_softc *)ncr_sc; 249 int s, flags; 250 251 flags = V2IF_SCSIIRQ; 252 if (sc->sc_options & SBC_INTR) 253 flags |= V2IF_SCSIDRQ; 254 255 s = splhigh(); 256 if (VIA2 == VIA2OFF) 257 via2_reg(vIER) = 0x80 | flags; 258 else 259 via2_reg(rIER) = 0x80 | flags; 260 splx(s); 261 } 262 263 void 264 sbc_intr_disable(struct ncr5380_softc *ncr_sc) 265 { 266 struct sbc_softc *sc = (struct sbc_softc *)ncr_sc; 267 int s, flags; 268 269 flags = V2IF_SCSIIRQ; 270 if (sc->sc_options & SBC_INTR) 271 flags |= V2IF_SCSIDRQ; 272 273 s = splhigh(); 274 if (VIA2 == VIA2OFF) 275 via2_reg(vIER) = flags; 276 else 277 via2_reg(rIER) = flags; 278 splx(s); 279 } 280 281 void 282 sbc_obio_clrintr(struct ncr5380_softc *ncr_sc) 283 { 284 struct sbc_softc *sc = (struct sbc_softc *)ncr_sc; 285 int flags; 286 287 flags = V2IF_SCSIIRQ; 288 if (sc->sc_options & SBC_INTR) 289 flags |= V2IF_SCSIDRQ; 290 291 if (VIA2 == VIA2OFF) 292 via2_reg(vIFR) = 0x80 | flags; 293 else 294 via2_reg(rIFR) = 0x80 | flags; 295 } 296
Indexes created Sun Sep 28 16:09:52 GMT 2025