244 lines
6.8 KiB
C
244 lines
6.8 KiB
C
/* $NetBSD: ahc_eisa.c,v 1.18 2000/03/15 02:04:43 fvdl Exp $ */
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/*
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* Product specific probe and attach routines for:
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* 274X and aic7770 motherboard SCSI controllers
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*
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* Copyright (c) 1994, 1995, 1996, 1997, 1998 Justin T. Gibbs.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice immediately at the beginning of the file, without modification,
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* this list of conditions, and the following disclaimer.
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* 2. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD: src/sys/dev/aic7xxx/ahc_eisa.c,v 1.15 2000/01/29 14:22:19 peter Exp $
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/device.h>
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#include <machine/bus.h>
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#include <machine/intr.h>
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#include <dev/scsipi/scsi_all.h>
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#include <dev/scsipi/scsipi_all.h>
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#include <dev/scsipi/scsiconf.h>
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#include <dev/eisa/eisareg.h>
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#include <dev/eisa/eisavar.h>
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#include <dev/eisa/eisadevs.h>
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#include <dev/microcode/aic7xxx/aic7xxx_reg.h>
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#include <dev/ic/aic7xxxvar.h>
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#include <dev/ic/aic77xxreg.h>
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#include <dev/ic/aic77xxvar.h>
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/*
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* Under normal circumstances, these messages are unnecessary
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* and not terribly cosmetic.
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*/
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#ifdef DEBUG
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#define bootverbose 1
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#else
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#define bootverbose 1
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#endif
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int ahc_eisa_match __P((struct device *, struct cfdata *, void *));
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void ahc_eisa_attach __P((struct device *, struct device *, void *));
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struct cfattach ahc_eisa_ca = {
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sizeof(struct ahc_softc), ahc_eisa_match, ahc_eisa_attach
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};
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/*
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* Check the slots looking for a board we recognise
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* If we find one, note it's address (slot) and call
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* the actual probe routine to check it out.
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*/
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int
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ahc_eisa_match(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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struct eisa_attach_args *ea = aux;
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bus_space_tag_t iot = ea->ea_iot;
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bus_space_handle_t ioh;
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int irq;
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/* must match one of our known ID strings */
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if (strcmp(ea->ea_idstring, "ADP7770") &&
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strcmp(ea->ea_idstring, "ADP7771"))
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return (0);
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if (bus_space_map(iot, EISA_SLOT_ADDR(ea->ea_slot) +
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AHC_EISA_SLOT_OFFSET, AHC_EISA_IOSIZE, 0, &ioh))
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return (0);
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irq = ahc_aic77xx_irq(iot, ioh);
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bus_space_unmap(iot, ioh, AHC_EISA_IOSIZE);
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return (irq >= 0);
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}
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void
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ahc_eisa_attach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct ahc_softc *ahc = (void *)self;
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struct eisa_attach_args *ea = aux;
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eisa_chipset_tag_t ec = ea->ea_ec;
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eisa_intr_handle_t ih;
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bus_space_tag_t iot = ea->ea_iot;
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bus_space_handle_t ioh;
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int irq, intrtype;
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const char *intrstr, *intrtypestr;
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u_int biosctrl;
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u_int scsiconf;
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u_int scsiconf1;
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#if DEBUG
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int i;
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#endif
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if (bus_space_map(iot, EISA_SLOT_ADDR(ea->ea_slot) +
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AHC_EISA_SLOT_OFFSET, AHC_EISA_IOSIZE, 0, &ioh))
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panic("%s: could not map I/O addresses", ahc->sc_dev.dv_xname);
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if ((irq = ahc_aic77xx_irq(iot, ioh)) < 0)
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panic("%s: ahc_aic77xx_irq failed!", ahc->sc_dev.dv_xname);
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if (strcmp(ea->ea_idstring, "ADP7770") == 0) {
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printf(": %s\n", EISA_PRODUCT_ADP7770);
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} else if (strcmp(ea->ea_idstring, "ADP7771") == 0) {
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printf(": %s\n", EISA_PRODUCT_ADP7771);
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} else {
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panic(": Unknown device type %s\n", ea->ea_idstring);
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}
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if (ahc_alloc(ahc, ioh, iot, ea->ea_dmat,
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AHC_AIC7770|AHC_EISA, AHC_AIC7770_FE, AHC_FNONE) < 0)
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goto free_io;
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ahc->channel = 'A';
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ahc->channel_b = 'B';
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if (ahc_reset(ahc) != 0)
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goto free_ahc;
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if (eisa_intr_map(ec, irq, &ih)) {
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printf("%s: couldn't map interrupt (%d)\n",
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ahc->sc_dev.dv_xname, irq);
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goto free_ahc;
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}
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/*
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* The IRQMS bit enables level sensitive interrupts. Only allow
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* IRQ sharing if it's set.
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* NOTE: ahc->pause is initialized in ahc_alloc().
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*
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* Tell the user what type of interrupts we're using.
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* usefull for debugging irq problems
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*/
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if (ahc->pause & IRQMS) {
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intrtype = IST_LEVEL;
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intrtypestr = "level sensitive";
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} else {
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intrtype = IST_EDGE;
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intrtypestr = "edge triggered";
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}
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intrstr = eisa_intr_string(ec, ih);
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ahc->ih = eisa_intr_establish(ec, ih,
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intrtype, IPL_BIO, ahc_intr, ahc);
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if (ahc->ih == NULL) {
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printf("%s: couldn't establish %s interrupt",
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ahc->sc_dev.dv_xname, intrtypestr);
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if (intrstr != NULL)
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printf(" at %s", intrstr);
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printf("\n");
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goto free_ahc;
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}
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if (intrstr != NULL)
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printf("%s: %s interrupting at %s\n", ahc->sc_dev.dv_xname,
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intrtypestr, intrstr);
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/*
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* Now that we know we own the resources we need, do the
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* card initialization.
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*
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* First, the aic7770 card specific setup.
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*/
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biosctrl = ahc_inb(ahc, HA_274_BIOSCTRL);
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scsiconf = ahc_inb(ahc, SCSICONF);
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scsiconf1 = ahc_inb(ahc, SCSICONF + 1);
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#if DEBUG
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for (i = TARG_SCSIRATE; i <= HA_274_BIOSCTRL; i+=8) {
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printf("0x%x, 0x%x, 0x%x, 0x%x, "
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"0x%x, 0x%x, 0x%x, 0x%x\n",
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ahc_inb(ahc, i),
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ahc_inb(ahc, i+1),
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ahc_inb(ahc, i+2),
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ahc_inb(ahc, i+3),
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ahc_inb(ahc, i+4),
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ahc_inb(ahc, i+5),
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ahc_inb(ahc, i+6),
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ahc_inb(ahc, i+7));
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}
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#endif
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/* Get the primary channel information */
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if ((biosctrl & CHANNEL_B_PRIMARY) != 0)
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ahc->flags |= AHC_CHANNEL_B_PRIMARY;
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if ((biosctrl & BIOSMODE) == BIOSDISABLED) {
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ahc->flags |= AHC_USEDEFAULTS;
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} else if ((ahc->features & AHC_WIDE) != 0) {
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ahc->our_id = scsiconf1 & HWSCSIID;
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if (scsiconf & TERM_ENB)
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ahc->flags |= AHC_TERM_ENB_A;
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} else {
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ahc->our_id = scsiconf & HSCSIID;
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ahc->our_id_b = scsiconf1 & HSCSIID;
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if (scsiconf & TERM_ENB)
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ahc->flags |= AHC_TERM_ENB_A;
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if (scsiconf1 & TERM_ENB)
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ahc->flags |= AHC_TERM_ENB_B;
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}
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/*
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* We have no way to tell, so assume extended
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* translation is enabled.
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*/
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ahc->flags |= AHC_EXTENDED_TRANS_A|AHC_EXTENDED_TRANS_B;
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/* Attach sub-devices */
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if (ahc_aic77xx_attach(ahc) == 0)
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return; /* succeed */
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/* failed */
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eisa_intr_disestablish(ec, ahc->ih);
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free_ahc:
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ahc_free(ahc);
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free_io:
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bus_space_unmap(iot, ioh, AHC_EISA_IOSIZE);
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}
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