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/*
* Device probe and attach routines for the following
* Advanced Systems Inc. SCSI controllers:
*
* Connectivity Products:
* ABP5140 - Bus-Master PnP ISA 16 CDB
*
* Single Channel Products:
* ABP542 - Bus-Master ISA 240 CDB
* ABP5150 - Bus-Master ISA 240 CDB (shipped by HP with the 4020i CD-R drive)
* ABP842 - Bus-Master VL 240 CDB
*
* Dual Channel Products:
* ABP852 - Dual Channel Bus-Master VL 240 CDB Per Channel
*
* Copyright (c) 1996 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. 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.
*
* $Id$
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <i386/isa/isa.h>
#include <i386/isa/isa_device.h>
#include <i386/scsi/advansys.h>
#define ADV_ISA_MAX_DMA_ADDR (0x00FFFFFFL)
#define ADV_ISA_MAX_DMA_COUNT (0x00FFFFFFL)
#define ADV_VL_MAX_DMA_ADDR (0x07FFFFFFL)
#define ADV_VL_MAX_DMA_COUNT (0x07FFFFFFL)
/* Possible port addresses an ISA or VL adapter can live at */
u_int16_t adv_isa_ioports[] =
{
0x100,
0x110, /* First selection in BIOS setup */
0x120,
0x130, /* Second selection in BIOS setup */
0x140,
0x150, /* Third selection in BIOS setup */
0x190, /* Fourth selection in BIOS setup */
0x210, /* Fifth selection in BIOS setup */
0x230, /* Sixth selection in BIOS setup */
0x250, /* Seventh selection in BIOS setup */
0x330 /* Eighth and default selection in BIOS setup */
};
#define MAX_ISA_IOPORT_INDEX (sizeof(adv_isa_ioports)/sizeof(u_short) - 1)
static int advisaprobe __P((struct isa_device *id));
static int advisaattach __P((struct isa_device *id));
static void adv_set_isapnp_wait_for_key __P((void));
static int adv_find_signature __P((u_int16_t iobase));
void adv_isa_intr __P((int unit));
struct isa_driver advdriver =
{
advisaprobe,
advisaattach,
"adv"
};
static int
advisaprobe(id)
struct isa_device *id;
{
int port_index;
int max_port_index;
/*
* Default to scanning all possible device locations.
*/
port_index = 0;
max_port_index = MAX_ISA_IOPORT_INDEX;
if (id->id_iobase > 0) {
for (;port_index <= max_port_index; port_index++)
if (id->id_iobase >= adv_isa_ioports[port_index])
break;
if ((port_index > max_port_index)
|| (id->id_iobase != adv_isa_ioports[port_index])) {
printf("adv%d: Invalid baseport of 0x%x specified. "
"Neerest valid baseport is 0x%x. Failing "
"probe.\n", id->id_unit, id->id_iobase,
(port_index <= max_port_index) ?
adv_isa_ioports[port_index] :
adv_isa_ioports[max_port_index]);
return 0;
}
max_port_index = port_index;
}
/* Perform the actual probing */
adv_set_isapnp_wait_for_key();
for (;port_index <= max_port_index; port_index++) {
u_int16_t port_addr = adv_isa_ioports[port_index];
if (port_addr == 0)
/* Already been attached */
continue;
if (adv_find_signature(port_addr)) {
/*
* Got one. Now allocate our softc
* and see if we can initialize the card.
*/
struct adv_softc *adv;
adv = adv_alloc(id->id_unit, port_addr);
if (adv == NULL)
return (0);
id->id_iobase = adv->iobase;
/*
* Determine the chip version.
*/
adv->chip_version = ADV_INB(adv,
ADV_NONEISA_CHIP_REVISION);
if (adv_init(adv) != 0) {
adv_free(adv);
return (0);
}
switch (adv->type) {
case ADV_ISAPNP:
if (adv->chip_version == ADV_CHIP_VER_ASYN_BUG)
adv->needs_async_bug_fix = TARGET_BIT_VECTOR_SET;
/* Fall Through */
case ADV_ISA:
adv->max_dma_count = ADV_ISA_MAX_DMA_COUNT;
break;
case ADV_VL:
adv->max_dma_count = ADV_VL_MAX_DMA_COUNT;
break;
}
if ((adv->type & ADV_ISAPNP) == ADV_ISAPNP) {
}
/* Determine our IRQ */
if (id->id_irq == 0 /* irq ? */)
id->id_irq = 1 << adv_get_chip_irq(adv);
else
adv_set_chip_irq(adv, ffs(id->id_irq) - 1);
/* Mark as probed */
adv_isa_ioports[port_index] = 0;
break;
}
}
return 1;
}
static int
advisaattach(id)
struct isa_device *id;
{
struct adv_softc *adv;
adv = advsoftcs[id->id_unit];
return (adv_attach(adv));
}
static void
adv_set_isapnp_wait_for_key(void)
{
static int isapnp_wait_set = 0;
if (isapnp_wait_set == 0) {
outb(ADV_ISA_PNP_PORT_ADDR, 0x02);
outb(ADV_ISA_PNP_PORT_WRITE, 0x02);
isapnp_wait_set++;
}
return;
}
/*
* Determine if there is a board at "iobase" by looking
* for the AdvanSys signatures. Return 1 if a board is
* found, 0 otherwise.
*/
static int
adv_find_signature(iobase)
u_int16_t iobase;
{
u_int16_t signature;
if (inb(iobase + ADV_SIGNATURE_BYTE) == ADV_1000_ID1B) {
signature = inw(iobase + ADV_SIGNATURE_WORD );
if ((signature == ADV_1000_ID0W)
|| (signature == ADV_1000_ID0W_FIX))
return (1);
}
return (0);
}
/*
* Handle an ISA interrupt.
* XXX should go away as soon as ISA interrupt handlers
* take a (void *) arg.
*/
void
adv_isa_intr(unit)
int unit;
{
struct adv_softc *arg = advsoftcs[unit];
adv_intr((void *)arg);
}
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