freebsd-dev/sys/dev/dpt/dpt_eisa.c

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/*
* Copyright (c) 1997 by Matthew N. Dodd <winter@jurai.net>
* 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,
* without modification, immediately at the beginning of the file.
* 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. 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.
*/
/*
* Credits: Based on and part of the DPT driver for FreeBSD written and
* maintained by Simon Shapiro <shimon@simon-shapiro.org>
*/
/*
* $Id: dpt_eisa.c,v 1.3 1998/08/09 02:22:34 jkh Exp $
*/
#include "eisa.h"
#if NEISA > 0
#include "opt_dpt.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/buf.h>
#include <sys/proc.h>
#include <sys/kernel.h>
#include <machine/bus_pio.h>
#include <machine/bus.h>
#include <cam/scsi/scsi_all.h>
#include <dev/dpt/dpt.h>
#include <i386/eisa/eisaconf.h>
#include <i386/eisa/dpt_eisa.h>
#include <machine/clock.h>
#include <vm/vm.h>
#include <vm/vm_param.h>
#include <vm/pmap.h>
/* Function Prototypes */
static int dpt_eisa_probe(void);
static int dpt_eisa_attach(struct eisa_device*);
static const char *dpt_eisa_match(eisa_id_t);
static struct eisa_driver dpt_eisa_driver =
{
"dpt",
dpt_eisa_probe,
dpt_eisa_attach,
NULL,
&dpt_unit
};
DATA_SET (eisadriver_set, dpt_eisa_driver);
static int
dpt_eisa_probe(void)
{
struct eisa_device *e_dev = NULL;
int count;
u_int32_t io_base;
u_int intdef;
u_int irq;
e_dev = NULL;
count = 0;
while ((e_dev = eisa_match_dev(e_dev, dpt_eisa_match))) {
io_base = (e_dev->ioconf.slot * EISA_SLOT_SIZE)
+ DPT_EISA_SLOT_OFFSET;
eisa_add_iospace(e_dev, io_base,
DPT_EISA_IOSIZE, RESVADDR_NONE);
intdef = inb(DPT_EISA_INTDEF + io_base);
irq = intdef & DPT_EISA_INT_NUM_MASK;
switch (irq) {
case DPT_EISA_INT_NUM_11:
irq = 11;
break;
case DPT_EISA_INT_NUM_15:
irq = 15;
break;
case DPT_EISA_INT_NUM_14:
irq = 14;
break;
default:
printf("dpt at slot %d: illegal irq setting %d\n",
e_dev->ioconf.slot, irq);
irq = 0;
break;
}
if (irq == 0)
continue;
eisa_add_intr(e_dev, irq);
eisa_registerdev(e_dev, &dpt_eisa_driver);
count++;
}
return count;
}
int
dpt_eisa_attach(e_dev)
struct eisa_device *e_dev;
{
dpt_softc_t *dpt;
resvaddr_t *io_space;
int unit = e_dev->unit;
int irq;
int shared;
int s;
if (TAILQ_FIRST(&e_dev->ioconf.irqs) == NULL) {
printf("dpt%d: Can't retrieve irq from EISA config struct.\n",
unit);
return -1;
}
irq = TAILQ_FIRST(&e_dev->ioconf.irqs)->irq_no;
io_space = e_dev->ioconf.ioaddrs.lh_first;
if (!io_space) {
printf("dpt%d: No I/O space?!\n", unit);
return -1;
}
shared = inb(DPT_EISA_INTDEF + io_space->addr) & DPT_EISA_INT_LEVEL;
dpt = dpt_alloc(unit, I386_BUS_SPACE_IO,
io_space->addr + DPT_EISA_EATA_REG_OFFSET);
if (dpt == NULL)
return -1;
/* Allocate a dmatag representing the capabilities of this attachment */
/* XXX Should be a child of the EISA bus dma tag */
if (bus_dma_tag_create(/*parent*/NULL, /*alignemnt*/0, /*boundary*/0,
/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
/*highaddr*/BUS_SPACE_MAXADDR,
/*filter*/NULL, /*filterarg*/NULL,
/*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
/*nsegments*/BUS_SPACE_UNRESTRICTED,
/*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
/*flags*/0, &dpt->parent_dmat) != 0) {
dpt_free(dpt);
return -1;
}
if (eisa_reg_intr(e_dev, irq, dpt_intr, (void *)dpt, &cam_imask,
shared)) {
printf("dpt%d: eisa_reg_intr() failed.\n", unit);
dpt_free(dpt);
return -1;
}
eisa_reg_end(e_dev);
/* Enable our interrupt handler. */
if (eisa_enable_intr(e_dev, irq)) {
#ifdef DPT_DEBUG_ERROR
printf("dpt%d: eisa_enable_intr() failed.\n", unit);
#endif
free(dpt, M_DEVBUF);
eisa_release_intr(e_dev, irq, dpt_intr);
return -1;
}
/*
* Enable our interrupt handler.
*/
if (eisa_enable_intr(e_dev, irq)) {
dpt_free(dpt);
eisa_release_intr(e_dev, irq, dpt_intr);
return -1;
}
s = splcam();
if (dpt_init(dpt) != 0) {
dpt_free(dpt);
return -1;
}
/* Register with the XPT */
dpt_attach(dpt);
splx(s);
return 0;
}
static const char *
dpt_eisa_match(type)
eisa_id_t type;
{
switch (type) {
case DPT_EISA_DPT2402 :
return ("DPT PM2012A/9X");
break;
case DPT_EISA_DPTA401 :
return ("DPT PM2012B/9X");
break;
case DPT_EISA_DPTA402 :
return ("DPT PM2012B2/9X");
break;
case DPT_EISA_DPTA410 :
return ("DPT PM2x22A/9X");
break;
case DPT_EISA_DPTA411 :
return ("DPT Spectre");
break;
case DPT_EISA_DPTA412 :
return ("DPT PM2021A/9X");
break;
case DPT_EISA_DPTA420 :
return ("DPT Smart Cache IV (PM2042)");
break;
case DPT_EISA_DPTA501 :
return ("DPT PM2012B1/9X");
break;
case DPT_EISA_DPTA502 :
return ("DPT PM2012Bx/9X");
break;
case DPT_EISA_DPTA701 :
return ("DPT PM2011B1/9X");
break;
case DPT_EISA_DPTBC01 :
return ("DPT PM3011/7X ESDI");
break;
case DPT_EISA_NEC8200 :
return ("NEC EATA SCSI");
break;
case DPT_EISA_ATT2408 :
return ("ATT EATA SCSI");
break;
default:
break;
}
return (NULL);
}
#endif /* NEISA > 0 */