NetBSD-5.0.2/sys/dev/eisa/ahc_eisa.c
/* $NetBSD: ahc_eisa.c,v 1.36 2008/04/06 08:54:43 cegger Exp $ */
/*
* Product specific probe and attach routines for:
* 274X and aic7770 motherboard SCSI controllers
*
* Copyright (c) 1994, 1995, 1996, 1997, 1998 Justin T. Gibbs.
* 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 immediately at the beginning of the file, without modification,
* this list of conditions, and the following disclaimer.
* 2. 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 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 AUTHOR 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.
*
* $FreeBSD: src/sys/dev/aic7xxx/ahc_eisa.c,v 1.15 2000/01/29 14:22:19 peter Exp $
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ahc_eisa.c,v 1.36 2008/04/06 08:54:43 cegger Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/reboot.h>
#include <sys/bus.h>
#include <sys/intr.h>
#include <dev/scsipi/scsi_all.h>
#include <dev/scsipi/scsipi_all.h>
#include <dev/scsipi/scsiconf.h>
#include <dev/eisa/eisareg.h>
#include <dev/eisa/eisavar.h>
#include <dev/eisa/eisadevs.h>
#include <dev/ic/aic7xxx_osm.h>
#include <dev/ic/aic7xxx_inline.h>
#include <dev/ic/aic77xxreg.h>
#include <dev/ic/aic77xxvar.h>
static int ahc_eisa_match(struct device *, struct cfdata *, void *);
static void ahc_eisa_attach(struct device *, struct device *, void *);
CFATTACH_DECL(ahc_eisa, sizeof(struct ahc_softc),
ahc_eisa_match, ahc_eisa_attach, NULL, NULL);
/*
* Check the slots looking for a board we recognise
* If we find one, note it's address (slot) and call
* the actual probe routine to check it out.
*/
static int
ahc_eisa_match(struct device *parent, struct cfdata *match,
void *aux)
{
struct eisa_attach_args *ea = aux;
bus_space_tag_t iot = ea->ea_iot;
bus_space_handle_t ioh;
int irq;
/* must match one of our known ID strings */
if (strcmp(ea->ea_idstring, "ADP7770") &&
strcmp(ea->ea_idstring, "ADP7771"))
return (0);
if (bus_space_map(iot, EISA_SLOT_ADDR(ea->ea_slot) +
AHC_EISA_SLOT_OFFSET, AHC_EISA_IOSIZE, 0, &ioh))
return (0);
irq = ahc_aic77xx_irq(iot, ioh);
bus_space_unmap(iot, ioh, AHC_EISA_IOSIZE);
return (irq >= 0);
}
static void
ahc_eisa_attach(struct device *parent, struct device *self, void *aux)
{
struct ahc_softc *ahc = device_private(self);
struct eisa_attach_args *ea = aux;
eisa_chipset_tag_t ec = ea->ea_ec;
eisa_intr_handle_t ih;
bus_space_tag_t iot = ea->ea_iot;
bus_space_handle_t ioh;
int irq, intrtype;
const char *intrstr, *intrtypestr;
u_int biosctrl;
u_int scsiconf;
u_int scsiconf1;
u_char intdef;
#ifdef AHC_DEBUG
int i;
#endif
if (bus_space_map(iot, EISA_SLOT_ADDR(ea->ea_slot) +
AHC_EISA_SLOT_OFFSET, AHC_EISA_IOSIZE, 0, &ioh)) {
aprint_error_dev(&ahc->sc_dev, "could not map I/O addresses");
return;
}
if ((irq = ahc_aic77xx_irq(iot, ioh)) < 0) {
aprint_error_dev(&ahc->sc_dev, "ahc_aic77xx_irq failed!");
goto free_io;
}
if (strcmp(ea->ea_idstring, "ADP7770") == 0) {
printf(": %s\n", EISA_PRODUCT_ADP7770);
} else if (strcmp(ea->ea_idstring, "ADP7771") == 0) {
printf(": %s\n", EISA_PRODUCT_ADP7771);
} else {
printf(": Unknown device type %s", ea->ea_idstring);
goto free_io;
}
ahc_set_name(ahc, device_xname(&ahc->sc_dev));
ahc->parent_dmat = ea->ea_dmat;
ahc->chip = AHC_AIC7770|AHC_EISA;
ahc->features = AHC_AIC7770_FE;
ahc->flags = AHC_PAGESCBS;
ahc->bugs = AHC_TMODE_WIDEODD_BUG;
ahc->tag = iot;
ahc->bsh = ioh;
ahc->channel = 'A';
if (ahc_softc_init(ahc) != 0)
goto free_io;
ahc_intr_enable(ahc, FALSE);
if (ahc_reset(ahc) != 0)
goto free_io;
if (eisa_intr_map(ec, irq, &ih)) {
aprint_error_dev(&ahc->sc_dev, "couldn't map interrupt (%d)\n",
irq);
goto free_io;
}
intdef = bus_space_read_1(iot, ioh, INTDEF);
if (intdef & EDGE_TRIG) {
intrtype = IST_EDGE;
intrtypestr = "edge triggered";
} else {
intrtype = IST_LEVEL;
intrtypestr = "level sensitive";
}
intrstr = eisa_intr_string(ec, ih);
ahc->ih = eisa_intr_establish(ec, ih,
intrtype, IPL_BIO, ahc_intr, ahc);
if (ahc->ih == NULL) {
aprint_error_dev(&ahc->sc_dev, "couldn't establish %s interrupt",
intrtypestr);
if (intrstr != NULL)
printf(" at %s", intrstr);
printf("\n");
goto free_io;
}
if (intrstr != NULL)
printf("%s: %s interrupting at %s\n", device_xname(&ahc->sc_dev),
intrtypestr, intrstr);
/*
* Now that we know we own the resources we need, do the
* card initialization.
*
* First, the aic7770 card specific setup.
*/
biosctrl = ahc_inb(ahc, HA_274_BIOSCTRL);
scsiconf = ahc_inb(ahc, SCSICONF);
scsiconf1 = ahc_inb(ahc, SCSICONF + 1);
#ifdef AHC_DEBUG
for (i = TARG_SCSIRATE; i <= HA_274_BIOSCTRL; i+=8) {
printf("0x%x, 0x%x, 0x%x, 0x%x, "
"0x%x, 0x%x, 0x%x, 0x%x\n",
ahc_inb(ahc, i),
ahc_inb(ahc, i+1),
ahc_inb(ahc, i+2),
ahc_inb(ahc, i+3),
ahc_inb(ahc, i+4),
ahc_inb(ahc, i+5),
ahc_inb(ahc, i+6),
ahc_inb(ahc, i+7));
}
#endif
/* Get the primary channel information */
if ((biosctrl & CHANNEL_B_PRIMARY) != 0)
ahc->flags |= AHC_PRIMARY_CHANNEL;
if ((biosctrl & BIOSMODE) == BIOSDISABLED) {
ahc->flags |= AHC_USEDEFAULTS;
} else if ((ahc->features & AHC_WIDE) != 0) {
ahc->our_id = scsiconf1 & HWSCSIID;
if (scsiconf & TERM_ENB)
ahc->flags |= AHC_TERM_ENB_A;
} else {
ahc->our_id = scsiconf & HSCSIID;
ahc->our_id_b = scsiconf1 & HSCSIID;
if (scsiconf & TERM_ENB)
ahc->flags |= AHC_TERM_ENB_A;
if (scsiconf1 & TERM_ENB)
ahc->flags |= AHC_TERM_ENB_B;
}
if ((ahc_inb(ahc, HA_274_BIOSGLOBAL) & HA_274_EXTENDED_TRANS))
ahc->flags |= AHC_EXTENDED_TRANS_A|AHC_EXTENDED_TRANS_B;
/* Attach sub-devices */
if (ahc_aic77xx_attach(ahc) == 0)
return; /* succeed */
/* failed */
eisa_intr_disestablish(ec, ahc->ih);
free_io:
bus_space_unmap(iot, ioh, AHC_EISA_IOSIZE);
}