sbc_obio.c revision 1.18
1 /* $NetBSD: sbc_obio.c,v 1.18 2005/01/15 16:01:00 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 1.18 2005/01/15 16:01:00 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/viareg.h> 52 53 #include <mac68k/dev/sbcreg.h> 54 #include <mac68k/dev/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(struct device *, struct cfdata *, void *); 75 static void sbc_obio_attach(struct device *, struct device *, void *); 76 77 void sbc_intr_enable(struct ncr5380_softc *); 78 void sbc_intr_disable(struct ncr5380_softc *); 79 void sbc_obio_clrintr(struct ncr5380_softc *); 80 81 CFATTACH_DECL(sbc_obio, sizeof(struct sbc_softc), 82 sbc_obio_match, sbc_obio_attach, NULL, NULL); 83 84 static int 85 sbc_obio_match(struct device *parent, struct cfdata *cf, void *args) 86 { 87 switch (current_mac_model->machineid) { 88 case MACH_MACIIFX: /* Note: the IIfx isn't (yet) supported. */ 89 /* 90 if (cf->cf_unit == 0) 91 return 1; 92 */ 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(struct device *parent, struct device *self, void *args) 112 { 113 struct sbc_softc *sc = (struct sbc_softc *) self; 114 struct ncr5380_softc *ncr_sc = (struct ncr5380_softc *) sc; 115 char bits[64]; 116 extern vaddr_t SCSIBase; 117 118 /* Pull in the options flags. */ 119 sc->sc_options = ((ncr_sc->sc_dev.dv_cfdata->cf_flags | sbc_options) 120 & SBC_OPTIONS_MASK); 121 122 /* 123 * Set up offsets to 5380 registers and GLUE I/O space, and turn 124 * off options we know we can't support on certain models. 125 */ 126 switch (current_mac_model->machineid) { 127 case MACH_MACIIFX: /* Note: the IIfx isn't (yet) supported. */ 128 sc->sc_regs = (struct sbc_regs *)(SCSIBase + SBC_REG_OFS_IIFX); 129 sc->sc_drq_addr = (vaddr_t)(SCSIBase + SBC_HSK_OFS_IIFX); 130 sc->sc_nodrq_addr = (vaddr_t)(SCSIBase + SBC_DMA_OFS_IIFX); 131 sc->sc_options &= ~(SBC_INTR | SBC_RESELECT); 132 break; 133 case MACH_MACPB500: 134 sc->sc_regs = (struct sbc_regs *)(SCSIBase + SBC_REG_OFS); 135 sc->sc_drq_addr = (vaddr_t)(SCSIBase + SBC_HSK_OFS); /*??*/ 136 sc->sc_nodrq_addr = (vaddr_t)(SCSIBase + SBC_DMA_OFS_PB500); 137 sc->sc_options &= ~(SBC_INTR | SBC_RESELECT); 138 break; 139 case MACH_MACPB210: 140 case MACH_MACPB230: 141 case MACH_MACPB250: 142 case MACH_MACPB270: 143 case MACH_MACPB280: 144 case MACH_MACPB280C: 145 if (ncr_sc->sc_dev.dv_unit == 1) { 146 sc->sc_regs = (struct sbc_regs *)(0xfee00000 + SBC_REG_OFS_DUO2); 147 sc->sc_drq_addr = (vaddr_t)(0xfee00000 + SBC_HSK_OFS_DUO2); 148 sc->sc_nodrq_addr = (vaddr_t)(0xfee00000 + SBC_DMA_OFS_DUO2); 149 break; 150 } 151 /*FALLTHROUGH*/ 152 default: 153 sc->sc_regs = (struct sbc_regs *)(SCSIBase + SBC_REG_OFS); 154 sc->sc_drq_addr = (vaddr_t)(SCSIBase + SBC_HSK_OFS); 155 sc->sc_nodrq_addr = (vaddr_t)(SCSIBase + SBC_DMA_OFS); 156 break; 157 } 158 159 /* 160 * Initialize fields used by the MI code 161 */ 162 ncr_sc->sci_r0 = &sc->sc_regs->sci_pr0.sci_reg; 163 ncr_sc->sci_r1 = &sc->sc_regs->sci_pr1.sci_reg; 164 ncr_sc->sci_r2 = &sc->sc_regs->sci_pr2.sci_reg; 165 ncr_sc->sci_r3 = &sc->sc_regs->sci_pr3.sci_reg; 166 ncr_sc->sci_r4 = &sc->sc_regs->sci_pr4.sci_reg; 167 ncr_sc->sci_r5 = &sc->sc_regs->sci_pr5.sci_reg; 168 ncr_sc->sci_r6 = &sc->sc_regs->sci_pr6.sci_reg; 169 ncr_sc->sci_r7 = &sc->sc_regs->sci_pr7.sci_reg; 170 171 ncr_sc->sc_rev = NCR_VARIANT_NCR5380; 172 173 /* 174 * MD function pointers used by the MI code. 175 */ 176 if (sc->sc_options & SBC_PDMA) { 177 ncr_sc->sc_pio_out = sbc_pdma_out; 178 ncr_sc->sc_pio_in = sbc_pdma_in; 179 } else { 180 ncr_sc->sc_pio_out = ncr5380_pio_out; 181 ncr_sc->sc_pio_in = ncr5380_pio_in; 182 } 183 ncr_sc->sc_dma_alloc = NULL; 184 ncr_sc->sc_dma_free = NULL; 185 ncr_sc->sc_dma_poll = NULL; 186 ncr_sc->sc_intr_on = NULL; 187 ncr_sc->sc_intr_off = NULL; 188 ncr_sc->sc_dma_setup = NULL; 189 ncr_sc->sc_dma_start = NULL; 190 ncr_sc->sc_dma_eop = NULL; 191 ncr_sc->sc_dma_stop = NULL; 192 ncr_sc->sc_flags = 0; 193 ncr_sc->sc_min_dma_len = MIN_DMA_LEN; 194 195 if (sc->sc_options & SBC_INTR) { 196 ncr_sc->sc_dma_alloc = sbc_dma_alloc; 197 ncr_sc->sc_dma_free = sbc_dma_free; 198 ncr_sc->sc_dma_poll = sbc_dma_poll; 199 ncr_sc->sc_dma_setup = sbc_dma_setup; 200 ncr_sc->sc_dma_start = sbc_dma_start; 201 ncr_sc->sc_dma_eop = sbc_dma_eop; 202 ncr_sc->sc_dma_stop = sbc_dma_stop; 203 via2_register_irq(VIA2_SCSIDRQ, sbc_drq_intr, ncr_sc); 204 } 205 206 via2_register_irq(VIA2_SCSIIRQ, sbc_irq_intr, ncr_sc); 207 sc->sc_clrintr = sbc_obio_clrintr; 208 209 if ((sc->sc_options & SBC_RESELECT) == 0) 210 ncr_sc->sc_no_disconnect = 0xff; 211 212 if (sc->sc_options) 213 printf(": options=%s", bitmask_snprintf(sc->sc_options, 214 SBC_OPTIONS_BITS, bits, sizeof(bits))); 215 printf("\n"); 216 217 if (sc->sc_options & (SBC_INTR|SBC_RESELECT)) { 218 /* Enable SCSI interrupts through VIA2 */ 219 sbc_intr_enable(ncr_sc); 220 } 221 222 #ifdef SBC_DEBUG 223 if (sbc_debug) 224 printf("%s: softc=%p regs=%p\n", ncr_sc->sc_dev.dv_xname, 225 sc, sc->sc_regs); 226 #endif 227 228 ncr_sc->sc_channel.chan_id = 7; 229 ncr_sc->sc_adapter.adapt_minphys = minphys; 230 231 /* 232 * Initialize the SCSI controller itself. 233 */ 234 ncr5380_attach(ncr_sc); 235 } 236 237 /* 238 * Interrupt support routines. 239 */ 240 void 241 sbc_intr_enable(struct ncr5380_softc *ncr_sc) 242 { 243 struct sbc_softc *sc = (struct sbc_softc *)ncr_sc; 244 int s, flags; 245 246 flags = V2IF_SCSIIRQ; 247 if (sc->sc_options & SBC_INTR) 248 flags |= V2IF_SCSIDRQ; 249 250 s = splhigh(); 251 if (VIA2 == VIA2OFF) 252 via2_reg(vIER) = 0x80 | flags; 253 else 254 via2_reg(rIER) = 0x80 | flags; 255 splx(s); 256 } 257 258 void 259 sbc_intr_disable(struct ncr5380_softc *ncr_sc) 260 { 261 struct sbc_softc *sc = (struct sbc_softc *)ncr_sc; 262 int s, flags; 263 264 flags = V2IF_SCSIIRQ; 265 if (sc->sc_options & SBC_INTR) 266 flags |= V2IF_SCSIDRQ; 267 268 s = splhigh(); 269 if (VIA2 == VIA2OFF) 270 via2_reg(vIER) = flags; 271 else 272 via2_reg(rIER) = flags; 273 splx(s); 274 } 275 276 void 277 sbc_obio_clrintr(struct ncr5380_softc *ncr_sc) 278 { 279 struct sbc_softc *sc = (struct sbc_softc *)ncr_sc; 280 int flags; 281 282 flags = V2IF_SCSIIRQ; 283 if (sc->sc_options & SBC_INTR) 284 flags |= V2IF_SCSIDRQ; 285 286 if (VIA2 == VIA2OFF) 287 via2_reg(vIFR) = 0x80 | flags; 288 else 289 via2_reg(rIFR) = 0x80 | flags; 290 } 291
Indexes created Mon Sep 29 21:09:56 GMT 2025