540 lines
13 KiB
C
540 lines
13 KiB
C
/* $NetBSD: ahc_eisa.c,v 1.16 1998/06/08 07:04:46 thorpej Exp $ */
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/*
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* Product specific probe and attach routines for:
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* 27/284X and aic7770 motherboard SCSI controllers
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*
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* Copyright (c) 1994, 1995, 1996 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. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. 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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* from Id: aic7770.c,v 1.29 1996/05/30 07:18:52 gibbs Exp
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*/
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#if defined(__FreeBSD__)
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#include <eisa.h>
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#endif
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#if NEISA > 0 || defined(__NetBSD__)
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#include <sys/param.h>
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#include <sys/systm.h>
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#if defined(__FreeBSD__)
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#include <sys/devconf.h>
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#endif
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#include <sys/kernel.h>
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#if defined(__NetBSD__)
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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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#endif /* defined(__NetBSD__) */
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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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#if defined(__FreeBSD__)
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#include <machine/clock.h>
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#include <i386/eisa/eisaconf.h>
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#include <i386/scsi/aic7xxx.h>
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#include <dev/aic7xxx/aic7xxx_reg.h>
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#define EISA_DEVICE_ID_ADAPTEC_AIC7770 0x04907770
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#define EISA_DEVICE_ID_ADAPTEC_274x 0x04907771
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#define EISA_DEVICE_ID_ADAPTEC_284xB 0x04907756 /* BIOS enabled */
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#define EISA_DEVICE_ID_ADAPTEC_284x 0x04907757 /* BIOS disabled*/
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#elif defined(__NetBSD__)
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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/ic/aic7xxxreg.h>
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#include <dev/ic/aic7xxxvar.h>
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#endif /* defined(__NetBSD__) */
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#define AHC_EISA_SLOT_OFFSET 0xc00
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#define AHC_EISA_IOSIZE 0x100
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#define INTDEF 0x5cul /* Interrupt Definition Register */
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#if defined(__FreeBSD__)
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static int aic7770probe __P((void));
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static int aic7770_attach __P((struct eisa_device *e_dev));
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static struct eisa_driver ahc_eisa_driver = {
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"ahc",
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aic7770probe,
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aic7770_attach,
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/*shutdown*/NULL,
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&ahc_unit
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};
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DATA_SET (eisadriver_set, ahc_eisa_driver);
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static struct kern_devconf kdc_aic7770 = {
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0, 0, 0, /* filled in by dev_attach */
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"ahc", 0, { MDDT_EISA, 0, "bio" },
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eisa_generic_externalize, 0, 0, EISA_EXTERNALLEN,
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&kdc_eisa0, /* parent */
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0, /* parentdata */
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DC_UNCONFIGURED, /* always start out here */
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NULL,
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DC_CLS_MISC /* host adapters aren't special */
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};
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static char *aic7770_match __P((eisa_id_t type));
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static char*
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aic7770_match(type)
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eisa_id_t type;
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{
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switch(type) {
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case EISA_DEVICE_ID_ADAPTEC_AIC7770:
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return ("Adaptec aic7770 SCSI host adapter");
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break;
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case EISA_DEVICE_ID_ADAPTEC_274x:
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return ("Adaptec 274X SCSI host adapter");
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break;
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case EISA_DEVICE_ID_ADAPTEC_284xB:
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case EISA_DEVICE_ID_ADAPTEC_284x:
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return ("Adaptec 284X SCSI host adapter");
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break;
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default:
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break;
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}
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return (NULL);
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}
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static int
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aic7770probe(void)
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{
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u_long iobase;
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char intdef;
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u_long irq;
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struct eisa_device *e_dev = NULL;
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int count;
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count = 0;
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while ((e_dev = eisa_match_dev(e_dev, aic7770_match))) {
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iobase = (e_dev->ioconf.slot * EISA_SLOT_SIZE)
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+ AHC_EISA_SLOT_OFFSET;
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ahc_reset(iobase);
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eisa_add_iospace(e_dev, iobase, AHC_EISA_IOSIZE, RESVADDR_NONE);
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intdef = inb(INTDEF + iobase);
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switch (intdef & 0xf) {
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case 9:
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irq = 9;
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break;
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case 10:
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irq = 10;
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break;
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case 11:
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irq = 11;
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break;
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case 12:
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irq = 12;
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break;
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case 14:
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irq = 14;
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break;
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case 15:
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irq = 15;
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break;
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default:
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printf("aic7770 at slot %d: illegal "
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"irq setting %d\n", e_dev->ioconf.slot,
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intdef);
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continue;
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}
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eisa_add_intr(e_dev, irq);
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eisa_registerdev(e_dev, &ahc_eisa_driver, &kdc_aic7770);
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if(e_dev->id == EISA_DEVICE_ID_ADAPTEC_284xB
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|| e_dev->id == EISA_DEVICE_ID_ADAPTEC_284x) {
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/* Our real parent is the isa bus. Say so. */
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e_dev->kdc->kdc_parent = &kdc_isa0;
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}
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count++;
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}
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return count;
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}
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#elif defined(__NetBSD__)
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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 0
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#endif
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int ahc_eisa_irq __P((bus_space_tag_t, bus_space_handle_t));
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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_data), ahc_eisa_match, ahc_eisa_attach
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};
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/*
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* Return irq setting of the board, otherwise -1.
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*/
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int
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ahc_eisa_irq(iot, ioh)
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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{
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int irq;
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u_char intdef;
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ahc_reset("ahc_eisa", iot, ioh);
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intdef = bus_space_read_1(iot, ioh, INTDEF);
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switch (irq = (intdef & 0xf)) {
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case 9:
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case 10:
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case 11:
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case 12:
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case 14:
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case 15:
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break;
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default:
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printf("ahc_eisa_irq: illegal irq setting %d\n", intdef);
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return -1;
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}
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/* Note that we are going and return (to probe) */
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return irq;
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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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#if 0
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&& strcmp(ea->ea_idstring, "ADP7756") /* not EISA, but VL */
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&& strcmp(ea->ea_idstring, "ADP7757") /* not EISA, but VL */
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#endif
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)
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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_eisa_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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#endif /* defined(__NetBSD__) */
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#if defined(__FreeBSD__)
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static int
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aic7770_attach(e_dev)
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struct eisa_device *e_dev;
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#elif defined(__NetBSD__)
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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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#endif
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{
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ahc_type type;
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#if defined(__FreeBSD__)
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struct ahc_data *ahc;
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resvaddr_t *iospace;
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int unit = e_dev->unit;
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int irq = ffs(e_dev->ioconf.irq) - 1;
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iospace = e_dev->ioconf.ioaddrs.lh_first;
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if(!iospace)
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return -1;
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switch(e_dev->id) {
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case EISA_DEVICE_ID_ADAPTEC_AIC7770:
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type = AHC_AIC7770;
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break;
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case EISA_DEVICE_ID_ADAPTEC_274x:
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type = AHC_274;
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break;
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case EISA_DEVICE_ID_ADAPTEC_284xB:
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case EISA_DEVICE_ID_ADAPTEC_284x:
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type = AHC_284;
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break;
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default:
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printf("aic7770_attach: Unknown device type!\n");
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return -1;
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break;
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}
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if(!(ahc = ahc_alloc(unit, iospace->addr, type, AHC_FNONE)))
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return -1;
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eisa_reg_start(e_dev);
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if(eisa_reg_iospace(e_dev, iospace)) {
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ahc_free(ahc);
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return -1;
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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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*/
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if(eisa_reg_intr(e_dev, irq, ahc_intr, (void *)ahc, &bio_imask,
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/*shared ==*/ahc->pause & IRQMS)) {
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ahc_free(ahc);
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return -1;
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}
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eisa_reg_end(e_dev);
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#elif defined(__NetBSD__)
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struct ahc_data *ahc = (void *)self;
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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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eisa_chipset_tag_t ec = ea->ea_ec;
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eisa_intr_handle_t ih;
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const char *model, *intrstr;
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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("ahc_eisa_attach: could not map I/O addresses");
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if ((irq = ahc_eisa_irq(iot, ioh)) < 0)
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panic("ahc_eisa_attach: ahc_eisa_irq failed!");
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if (strcmp(ea->ea_idstring, "ADP7770") == 0) {
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model = EISA_PRODUCT_ADP7770;
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type = AHC_AIC7770;
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} else if (strcmp(ea->ea_idstring, "ADP7771") == 0) {
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model = EISA_PRODUCT_ADP7771;
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type = AHC_274;
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#if 0
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} else if (strcmp(ea->ea_idstring, "ADP7756") == 0) {
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model = EISA_PRODUCT_ADP7756;
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type = AHC_284;
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} else if (strcmp(ea->ea_idstring, "ADP7757") == 0) {
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model = EISA_PRODUCT_ADP7757;
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type = AHC_284;
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#endif
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} else {
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panic("ahc_eisa_attach: Unknown device type %s\n",
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ea->ea_idstring);
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}
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printf(": %s\n", model);
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ahc_construct(ahc, iot, ioh, ea->ea_dmat, type, AHC_FNONE);
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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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return;
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}
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#endif /* defined(__NetBSD__) */
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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(bootverbose) {
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printf("%s: Using %s Interrupts\n",
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ahc_name(ahc),
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ahc->pause & IRQMS ? "Level Sensitive" : "Edge Triggered");
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}
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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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switch( ahc->type ) {
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case AHC_AIC7770:
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case AHC_274:
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{
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u_char biosctrl = AHC_INB(ahc, HA_274_BIOSCTRL);
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/* Get the primary channel information */
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ahc->flags |= (biosctrl & CHANNEL_B_PRIMARY);
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if((biosctrl & BIOSMODE) == BIOSDISABLED)
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ahc->flags |= AHC_USEDEFAULTS;
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break;
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}
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case AHC_284:
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{
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/* XXX
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* All values are automagically intialized at
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* POST for these cards, so we can always rely
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* on the Scratch Ram values. However, we should
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* read the SEEPROM here (Dan has the code to do
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* it) so we can say what kind of translation the
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* BIOS is using. Printing out the geometry could
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* save a lot of users the grief of failed installs.
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*/
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break;
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}
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default:
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break;
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}
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/*
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* See if we have a Rev E or higher aic7770. Anything below a
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* Rev E will have a R/O autoflush disable configuration bit.
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* It's still not clear exactly what is differenent about the Rev E.
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* We think it allows 8 bit entries in the QOUTFIFO to support
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* "paging" SCBs so you can have more than 4 commands active at
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* once.
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*/
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{
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char *id_string;
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u_char sblkctl;
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u_char sblkctl_orig;
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sblkctl_orig = AHC_INB(ahc, SBLKCTL);
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sblkctl = sblkctl_orig ^ AUTOFLUSHDIS;
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AHC_OUTB(ahc, SBLKCTL, sblkctl);
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sblkctl = AHC_INB(ahc, SBLKCTL);
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if(sblkctl != sblkctl_orig)
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{
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id_string = "aic7770 >= Rev E, ";
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/*
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* Ensure autoflush is enabled
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*/
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sblkctl &= ~AUTOFLUSHDIS;
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AHC_OUTB(ahc, SBLKCTL, sblkctl);
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/* Allow paging on this adapter */
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ahc->flags |= AHC_PAGESCBS;
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}
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else
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id_string = "aic7770 <= Rev C, ";
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printf("%s: %s", ahc_name(ahc), id_string);
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}
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/* Setup the FIFO threshold and the bus off time */
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{
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u_char hostconf = AHC_INB(ahc, HOSTCONF);
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AHC_OUTB(ahc, BUSSPD, hostconf & DFTHRSH);
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AHC_OUTB(ahc, BUSTIME, (hostconf << 2) & BOFF);
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}
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/*
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* Generic aic7xxx initialization.
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*/
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if(ahc_init(ahc)){
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#if defined(__FreeBSD__)
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ahc_free(ahc);
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/*
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* The board's IRQ line is not yet enabled so it's safe
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* to release the irq.
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*/
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eisa_release_intr(e_dev, irq, ahc_intr);
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return -1;
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#elif defined(__NetBSD__)
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ahc_free(ahc);
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return;
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#endif
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}
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/*
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* Enable the board's BUS drivers
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*/
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AHC_OUTB(ahc, BCTL, ENABLE);
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#if defined(__FreeBSD__)
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/*
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* Enable our interrupt handler.
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*/
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if(eisa_enable_intr(e_dev, irq)) {
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ahc_free(ahc);
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eisa_release_intr(e_dev, irq, ahc_intr);
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return -1;
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}
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e_dev->kdc->kdc_state = DC_BUSY; /* host adapters always busy */
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#elif defined(__NetBSD__)
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intrstr = eisa_intr_string(ec, ih);
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/*
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* The IRQMS bit enables level sensitive interrupts only allow
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* IRQ sharing if its set.
|
|
*/
|
|
ahc->sc_ih = eisa_intr_establish(ec, ih,
|
|
ahc->pause & IRQMS ? IST_LEVEL : IST_EDGE, IPL_BIO, ahc_intr, ahc);
|
|
if (ahc->sc_ih == NULL) {
|
|
printf("%s: couldn't establish interrupt",
|
|
ahc->sc_dev.dv_xname);
|
|
if (intrstr != NULL)
|
|
printf(" at %s", intrstr);
|
|
printf("\n");
|
|
ahc_free(ahc);
|
|
return;
|
|
}
|
|
if (intrstr != NULL)
|
|
printf("%s: interrupting at %s\n", ahc->sc_dev.dv_xname,
|
|
intrstr);
|
|
#endif /* defined(__NetBSD__) */
|
|
|
|
/* Attach sub-devices - always succeeds */
|
|
ahc_attach(ahc);
|
|
|
|
#if defined(__FreeBSD__)
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
#endif /* NEISA > 0 */
|