/* $NetBSD: sbc_obio.c,v 1.1 1997/03/01 20:18:59 scottr Exp $ */ /* * Copyright (C) 1996,1997 Scott Reynolds. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Scott Reynolds for * the NetBSD Project. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "sbcreg.h" #include "sbcvar.h" /* * From Guide to the Macintosh Family Hardware, pp. 137-143 * These are offsets from SCSIBase (see pmap_bootstrap.c) */ #define SBC_REG_OFS 0x10000 #define SBC_DMA_OFS 0x12000 #define SBC_HSK_OFS 0x06000 #define SBC_DMA_OFS_PB500 0x06000 #define SBC_REG_OFS_IIFX 0x08000 /* Just guessing... */ #define SBC_DMA_OFS_IIFX 0x0c000 #define SBC_HSK_OFS_IIFX 0x0e000 #define SBC_REG_OFS_DUO2 0x00000 #define SBC_DMA_OFS_DUO2 0x02000 #define SBC_HSK_OFS_DUO2 0x04000 static int sbc_obio_match __P((struct device *, void *, void *)); static void sbc_obio_attach __P((struct device *, struct device *, void *)); void sbc_intr_enable __P((struct ncr5380_softc *)); void sbc_intr_disable __P((struct ncr5380_softc *)); void sbc_obio_clrintr __P((struct ncr5380_softc *)); struct cfattach sbc_obio_ca = { sizeof(struct sbc_softc), sbc_obio_match, sbc_obio_attach }; static int sbc_obio_match(parent, vcf, args) struct device *parent; void *vcf; void *args; { struct cfdata *cf = (struct cfdata *) vcf; switch (current_mac_model->machineid) { case MACH_MACIIFX: /* Note: the IIfx isn't (yet) supported. */ break; case MACH_MACPB210: case MACH_MACPB230: case MACH_MACPB250: case MACH_MACPB270: case MACH_MACPB280: case MACH_MACPB280C: if (cf->cf_unit == 1) return 1; /*FALLTHROUGH*/ default: if (cf->cf_unit == 0 && mac68k_machine.scsi80) return 1; } return 0; } static void sbc_obio_attach(parent, self, args) struct device *parent, *self; void *args; { struct sbc_softc *sc = (struct sbc_softc *) self; struct ncr5380_softc *ncr_sc = (struct ncr5380_softc *) sc; extern vm_offset_t SCSIBase; /* Pull in the options flags. */ sc->sc_options = ((ncr_sc->sc_dev.dv_cfdata->cf_flags | sbc_options) & SBC_OPTIONS_MASK); /* * Set up offsets to 5380 registers and GLUE I/O space, and turn * off options we know we can't support on certain models. */ switch (current_mac_model->machineid) { case MACH_MACIIFX: /* Note: the IIfx isn't (yet) supported. */ sc->sc_regs = (struct sbc_regs *)(SCSIBase + SBC_REG_OFS_IIFX); sc->sc_drq_addr = (vm_offset_t)(SCSIBase + SBC_HSK_OFS_IIFX); sc->sc_nodrq_addr = (vm_offset_t)(SCSIBase + SBC_DMA_OFS_IIFX); sc->sc_options &= ~(SBC_INTR | SBC_RESELECT); break; case MACH_MACPB500: sc->sc_regs = (struct sbc_regs *)(SCSIBase + SBC_REG_OFS); sc->sc_drq_addr = (vm_offset_t)(SCSIBase + SBC_HSK_OFS); /*??*/ sc->sc_nodrq_addr = (vm_offset_t)(SCSIBase + SBC_DMA_OFS_PB500); sc->sc_options &= ~(SBC_INTR | SBC_RESELECT); break; case MACH_MACPB210: case MACH_MACPB230: case MACH_MACPB250: case MACH_MACPB270: case MACH_MACPB280: case MACH_MACPB280C: if (ncr_sc->sc_dev.dv_unit == 1) { sc->sc_regs = (struct sbc_regs *)(0xfee00000 + SBC_REG_OFS_DUO2); sc->sc_drq_addr = (vm_offset_t)(0xfee00000 + SBC_HSK_OFS_DUO2); sc->sc_nodrq_addr = (vm_offset_t)(0xfee00000 + SBC_DMA_OFS_DUO2); break; } /*FALLTHROUGH*/ default: sc->sc_regs = (struct sbc_regs *)(SCSIBase + SBC_REG_OFS); sc->sc_drq_addr = (vm_offset_t)(SCSIBase + SBC_HSK_OFS); sc->sc_nodrq_addr = (vm_offset_t)(SCSIBase + SBC_DMA_OFS); break; } /* * Fill in the prototype scsi_link. */ ncr_sc->sc_link.adapter_softc = sc; ncr_sc->sc_link.adapter_target = 7; ncr_sc->sc_link.adapter = &sbc_ops; ncr_sc->sc_link.device = &sbc_dev; ncr_sc->sc_link.openings = 4; /* * Initialize fields used by the MI code */ ncr_sc->sci_r0 = &sc->sc_regs->sci_pr0.sci_reg; ncr_sc->sci_r1 = &sc->sc_regs->sci_pr1.sci_reg; ncr_sc->sci_r2 = &sc->sc_regs->sci_pr2.sci_reg; ncr_sc->sci_r3 = &sc->sc_regs->sci_pr3.sci_reg; ncr_sc->sci_r4 = &sc->sc_regs->sci_pr4.sci_reg; ncr_sc->sci_r5 = &sc->sc_regs->sci_pr5.sci_reg; ncr_sc->sci_r6 = &sc->sc_regs->sci_pr6.sci_reg; ncr_sc->sci_r7 = &sc->sc_regs->sci_pr7.sci_reg; /* * MD function pointers used by the MI code. */ if (sc->sc_options & SBC_PDMA) { ncr_sc->sc_pio_out = sbc_pdma_out; ncr_sc->sc_pio_in = sbc_pdma_in; } else { ncr_sc->sc_pio_out = ncr5380_pio_out; ncr_sc->sc_pio_in = ncr5380_pio_in; } ncr_sc->sc_dma_alloc = NULL; ncr_sc->sc_dma_free = NULL; ncr_sc->sc_dma_poll = NULL; ncr_sc->sc_intr_on = NULL; ncr_sc->sc_intr_off = NULL; ncr_sc->sc_dma_setup = NULL; ncr_sc->sc_dma_start = NULL; ncr_sc->sc_dma_eop = NULL; ncr_sc->sc_dma_stop = NULL; ncr_sc->sc_flags = 0; ncr_sc->sc_min_dma_len = MIN_DMA_LEN; if (sc->sc_options & SBC_INTR) { ncr_sc->sc_dma_alloc = sbc_dma_alloc; ncr_sc->sc_dma_free = sbc_dma_free; ncr_sc->sc_dma_poll = sbc_dma_poll; ncr_sc->sc_dma_setup = sbc_dma_setup; ncr_sc->sc_dma_start = sbc_dma_start; ncr_sc->sc_dma_eop = sbc_dma_eop; ncr_sc->sc_dma_stop = sbc_dma_stop; via2_register_irq(VIA2_SCSIDRQ, sbc_drq_intr, ncr_sc); via2_register_irq(VIA2_SCSIIRQ, sbc_irq_intr, ncr_sc); } else ncr_sc->sc_flags |= NCR5380_FORCE_POLLING; if (sc->sc_options & SBC_INTR) sc->sc_clrintr = sbc_obio_clrintr; else sc->sc_clrintr = NULL; if (sc->sc_options) printf(": options=0x%x", sc->sc_options); printf("\n"); /* Now enable SCSI interrupts through VIA2, if appropriate */ if (sc->sc_options & SBC_INTR) sbc_intr_enable(ncr_sc); #ifdef SBC_DEBUG if (sbc_debug) printf("%s: softc=%p regs=%p\n", ncr_sc->sc_dev.dv_xname, sc, sc->sc_regs); ncr_sc->sc_link.flags |= sbc_link_flags; #endif /* * Initialize the SCSI controller itself. */ ncr5380_init(ncr_sc); ncr5380_reset_scsibus(ncr_sc); config_found(self, &(ncr_sc->sc_link), scsiprint); } /* * Interrupt support routines. */ void sbc_intr_enable(ncr_sc) struct ncr5380_softc *ncr_sc; { int s; s = splhigh(); if (VIA2 == VIA2OFF) via2_reg(vIER) = 0x80 | (V2IF_SCSIIRQ | V2IF_SCSIDRQ); else via2_reg(rIER) = 0x80 | (V2IF_SCSIIRQ | V2IF_SCSIDRQ); splx(s); } void sbc_intr_disable(ncr_sc) struct ncr5380_softc *ncr_sc; { int s; s = splhigh(); if (VIA2 == VIA2OFF) via2_reg(vIER) = (V2IF_SCSIIRQ | V2IF_SCSIDRQ); else via2_reg(rIER) = (V2IF_SCSIIRQ | V2IF_SCSIDRQ); splx(s); } void sbc_obio_clrintr(ncr_sc) struct ncr5380_softc *ncr_sc; { if (VIA2 == VIA2OFF) via2_reg(vIFR) = 0x80 | (V2IF_SCSIIRQ | V2IF_SCSIDRQ); else via2_reg(rIFR) = 0x80 | (V2IF_SCSIIRQ | V2IF_SCSIDRQ); }