/* $NetBSD: ncr.c,v 1.16 1998/12/06 13:55:09 ragge Exp $ */ /*- * Copyright (c) 1996 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Adam Glass, David Jones, Gordon W. Ross, and Jens A. Nilsson. * * 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 the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``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 FOUNDATION OR CONTRIBUTORS * 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. */ /* * This file contains the machine-dependent parts of the NCR-5380 * controller. The machine-independent parts are in ncr5380sbc.c. * * Note: Only PIO transfers for now which implicates very bad * performance. DMA support will come soon. * * Jens A. Nilsson. * * Credits: * * This code is based on arch/sun3/dev/si* * Written by David Jones, Gordon Ross, and Adam Glass. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "ioconf.h" #define MIN_DMA_LEN 128 #ifdef notyet struct si_dma_handle { int dh_flags; #define SIDH_BUSY 1 #define SIDH_OUT 2 u_char *dh_addr; }; #endif struct si_softc { struct ncr5380_softc ncr_sc; }; /* This is copied from julian's bt driver */ /* "so we have a default dev struct for our link struct." */ static struct scsipi_device si_dev = { NULL, /* Use default error handler. */ NULL, /* Use default start handler. */ NULL, /* Use default async handler. */ NULL, /* Use default "done" routine. */ }; static int si_match(struct device *, struct cfdata *, void *); static void si_attach(struct device *, struct device *, void *); static void si_minphys(struct buf *); static void si_intr(int); void dk_establish(void); struct cfattach ncr_ca = { sizeof(struct si_softc), si_match, si_attach }; void dk_establish(void) { #if 0 printf("faking dk_establish()...\n"); #endif } static int si_match(parent, cf, aux) struct device *parent; struct cfdata *cf; void *aux; { struct vsbus_attach_args *va = aux; if (va->va_type == 0x200C0080) return 1; return 0; } static void si_attach(parent, self, args) struct device *parent, *self; void *args; { struct si_softc *sc = (struct si_softc *) self; struct ncr5380_softc *ncr_sc = &sc->ncr_sc; #ifdef notyet struct confargs *ca = args; #endif printf("\n"); /* * MD function pointers used by the MI code. */ ncr_sc->sc_pio_out = ncr5380_pio_out; ncr_sc->sc_pio_in = ncr5380_pio_in; #ifdef notyet ncr_sc->sc_dma_alloc = si_dma_alloc; ncr_sc->sc_dma_free = si_dma_free; ncr_sc->sc_dma_setup = si_dma_setup; ncr_sc->sc_dma_start = si_dma_start; ncr_sc->sc_dma_poll = si_dma_poll; ncr_sc->sc_dma_eop = si_dma_eop; ncr_sc->sc_dma_stop = si_dma_stop; #endif ncr_sc->sc_intr_on = NULL /*si_intr_on*/; ncr_sc->sc_intr_off = NULL /*si_intr_off*/; ncr_sc->sc_dma_alloc = NULL; ncr_sc->sc_min_dma_len = MIN_DMA_LEN; /* * Fill in the adapter. */ ncr_sc->sc_adapter.scsipi_cmd = ncr5380_scsi_cmd; ncr_sc->sc_adapter.scsipi_minphys = si_minphys; /* * Fill in the prototype scsi_link. */ ncr_sc->sc_link.scsipi_scsi.channel = SCSI_CHANNEL_ONLY_ONE; ncr_sc->sc_link.adapter_softc = sc; ncr_sc->sc_link.scsipi_scsi.adapter_target = 7; ncr_sc->sc_link.adapter = &ncr_sc->sc_adapter; ncr_sc->sc_link.device = &si_dev; ncr_sc->sc_link.type = BUS_SCSI; /* * Initialize fields used by the MI code. */ ncr_sc->sci_r0 = sca_regs + 0x80; /* CUR_DATA/OUT_DATA (rw) */ ncr_sc->sci_r1 = sca_regs + 0x84; /* INI_CMD (rw) */ ncr_sc->sci_r2 = sca_regs + 0x88; /* MODE (rw) */ ncr_sc->sci_r3 = sca_regs + 0x8c; /* TAR_CMD (rw) */ ncr_sc->sci_r4 = sca_regs + 0x90; /* CUR_STAT/SEL_ENA (rw) */ ncr_sc->sci_r5 = sca_regs + 0x94; /* STATUS/DMA_SEND (rw) */ ncr_sc->sci_r6 = sca_regs + 0x98; /* IN_DATA/DMA_TRCV (rw) */ ncr_sc->sci_r7 = sca_regs + 0x9c; /* RESET/DMA_IRCV (rw) */ /* * Initialize si board itself. */ ncr5380_init(ncr_sc); ncr5380_reset_scsibus(ncr_sc); vsbus_intr_attach(1, si_intr, 0); /* 0 is arg for si_intr */ vsbus_intr_enable(1); config_found(&(ncr_sc->sc_dev), &(ncr_sc->sc_link), scsiprint); } static void si_minphys(struct buf *bp) { #if 0 printf("minphys: blkno=%d, bcount=%d, data=0x%x, flags=%x\n", bp->b_blkno, (int) bp->b_bcount, (unsigned) bp->b_data, (unsigned) bp->b_flags); #endif } static void si_intr(int arg) { #if 0 printf("si_intr: arg=%d\n", arg); #endif ncr5380_intr(ncr_cd.cd_devs[arg]); }