237 lines
6.3 KiB
C
237 lines
6.3 KiB
C
/*
|
|
* 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);
|
|
}
|