379 lines
10 KiB
C
379 lines
10 KiB
C
/*
|
|
* Device probe and attach routines for the following
|
|
* Advanced Systems Inc. SCSI controllers:
|
|
*
|
|
* Connectivity Products:
|
|
* ABP510/5150 - Bus-Master ISA (240 CDB) *
|
|
* ABP5140 - Bus-Master ISA PnP (16 CDB) * **
|
|
* ABP5142 - Bus-Master ISA PnP with floppy (16 CDB) ***
|
|
*
|
|
* Single Channel Products:
|
|
* ABP542 - Bus-Master ISA with floppy (240 CDB)
|
|
* ABP842 - Bus-Master VL (240 CDB)
|
|
*
|
|
* Dual Channel Products:
|
|
* ABP852 - Dual Channel Bus-Master VL (240 CDB Per Channel)
|
|
*
|
|
* * This board has been shipped by HP with the 4020i CD-R drive.
|
|
* The board has no BIOS so it cannot control a boot device, but
|
|
* it can control any secondary SCSI device.
|
|
* ** This board has been sold by SIIG as the i540 SpeedMaster.
|
|
* *** This board has been sold by SIIG as the i542 SpeedMaster.
|
|
*
|
|
* Copyright (c) 1996, 1997 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, this list of conditions, and the following disclaimer,
|
|
* without modification, immediately at the beginning of the file.
|
|
* 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.
|
|
*
|
|
* $Id: adv_isa.c,v 1.3 1997/02/22 09:35:51 peter Exp $
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/malloc.h>
|
|
|
|
#include <machine/bus_pio.h>
|
|
#include <machine/bus.h>
|
|
|
|
#include <i386/isa/isa.h>
|
|
#include <i386/isa/isa_device.h>
|
|
|
|
#include <dev/advansys/advansys.h>
|
|
|
|
#include <cam/scsi/scsi_all.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)
|
|
|
|
/*
|
|
* The overrun buffer shared amongst all ISA/VL adapters.
|
|
*/
|
|
static u_int8_t* overrun_buf;
|
|
bus_dma_tag_t overrun_dmat;
|
|
bus_dmamap_t overrun_dmamap;
|
|
bus_addr_t overrun_physbase;
|
|
|
|
/* 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_int16_t) - 1)
|
|
|
|
static int advisaprobe(struct isa_device *id);
|
|
static int advisaattach(struct isa_device *id);
|
|
static void adv_set_isapnp_wait_for_key(void);
|
|
static int adv_get_isa_dma_channel(struct adv_softc *adv);
|
|
static int adv_set_isa_dma_settings(struct adv_softc *adv);
|
|
|
|
void adv_isa_intr(void *unit);
|
|
|
|
struct isa_driver advdriver =
|
|
{
|
|
advisaprobe,
|
|
advisaattach,
|
|
"adv"
|
|
};
|
|
|
|
static int
|
|
advisaprobe(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];
|
|
bus_size_t maxsegsz;
|
|
bus_size_t maxsize;
|
|
bus_addr_t lowaddr;
|
|
int error;
|
|
|
|
if (port_addr == 0)
|
|
/* Already been attached */
|
|
continue;
|
|
if (adv_find_signature(I386_BUS_SPACE_IO, 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, I386_BUS_SPACE_IO,
|
|
port_addr);
|
|
if (adv == NULL)
|
|
return (0);
|
|
|
|
adv_unit++;
|
|
|
|
id->id_iobase = adv->bsh;
|
|
|
|
/*
|
|
* Stop the chip.
|
|
*/
|
|
ADV_OUTB(adv, ADV_CHIP_CTRL, ADV_CC_HALT);
|
|
ADV_OUTW(adv, ADV_CHIP_STATUS, 0);
|
|
/*
|
|
* Determine the chip version.
|
|
*/
|
|
adv->chip_version = ADV_INB(adv,
|
|
ADV_NONEISA_CHIP_REVISION);
|
|
if ((adv->chip_version >= ADV_CHIP_MIN_VER_VL)
|
|
&& (adv->chip_version <= ADV_CHIP_MAX_VER_VL)) {
|
|
adv->type = ADV_VL;
|
|
maxsegsz = ADV_VL_MAX_DMA_COUNT;
|
|
maxsize = BUS_SPACE_MAXSIZE_32BIT;
|
|
lowaddr = ADV_VL_MAX_DMA_ADDR;
|
|
id->id_drq = -1;
|
|
} else if ((adv->chip_version >= ADV_CHIP_MIN_VER_ISA)
|
|
&& (adv->chip_version <= ADV_CHIP_MAX_VER_ISA)) {
|
|
if (adv->chip_version >= ADV_CHIP_MIN_VER_ISA_PNP) {
|
|
adv->type = ADV_ISAPNP;
|
|
ADV_OUTB(adv, ADV_REG_IFC,
|
|
ADV_IFC_INIT_DEFAULT);
|
|
} else {
|
|
adv->type = ADV_ISA;
|
|
}
|
|
maxsegsz = ADV_ISA_MAX_DMA_COUNT;
|
|
maxsize = BUS_SPACE_MAXSIZE_24BIT;
|
|
lowaddr = ADV_ISA_MAX_DMA_ADDR;
|
|
adv->isa_dma_speed = ADV_DEF_ISA_DMA_SPEED;
|
|
adv->isa_dma_channel =
|
|
adv_get_isa_dma_channel(adv);
|
|
id->id_drq = adv->isa_dma_channel;
|
|
} else {
|
|
panic("advisaprobe: Unknown card revision\n");
|
|
}
|
|
|
|
/*
|
|
* Allocate a parent dmatag for all tags created
|
|
* by the MI portions of the advansys driver
|
|
*/
|
|
/* XXX Should be a child of the ISA bus dma tag */
|
|
error =
|
|
bus_dma_tag_create(/*parent*/NULL,
|
|
/*alignemnt*/0,
|
|
/*boundary*/0,
|
|
lowaddr,
|
|
/*highaddr*/BUS_SPACE_MAXADDR,
|
|
/*filter*/NULL,
|
|
/*filterarg*/NULL,
|
|
maxsize,
|
|
/*nsegs*/BUS_SPACE_UNRESTRICTED,
|
|
maxsegsz,
|
|
/*flags*/0,
|
|
&adv->parent_dmat);
|
|
|
|
if (error != 0) {
|
|
printf("%s: Could not allocate DMA tag - error %d\n",
|
|
adv_name(adv), error);
|
|
adv_free(adv);
|
|
return (0);
|
|
}
|
|
|
|
adv->init_level++;
|
|
|
|
if (overrun_buf == NULL) {
|
|
/* Need to allocate our overrun buffer */
|
|
if (bus_dma_tag_create(adv->parent_dmat,
|
|
/*alignment*/8,
|
|
/*boundary*/0,
|
|
ADV_ISA_MAX_DMA_ADDR,
|
|
BUS_SPACE_MAXADDR,
|
|
/*filter*/NULL,
|
|
/*filterarg*/NULL,
|
|
ADV_OVERRUN_BSIZE,
|
|
/*nsegments*/1,
|
|
BUS_SPACE_MAXSIZE_32BIT,
|
|
/*flags*/0,
|
|
&overrun_dmat) != 0) {
|
|
adv_free(adv);
|
|
return (0);
|
|
}
|
|
if (bus_dmamem_alloc(overrun_dmat,
|
|
(void **)&overrun_buf,
|
|
BUS_DMA_NOWAIT,
|
|
&overrun_dmamap) != 0) {
|
|
bus_dma_tag_destroy(overrun_dmat);
|
|
adv_free(adv);
|
|
return (0);
|
|
}
|
|
/* And permanently map it in */
|
|
bus_dmamap_load(overrun_dmat, overrun_dmamap,
|
|
overrun_buf, ADV_OVERRUN_BSIZE,
|
|
adv_map, &overrun_physbase,
|
|
/*flags*/0);
|
|
}
|
|
|
|
adv->overrun_physbase = overrun_physbase;
|
|
|
|
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->bug_fix_control
|
|
|= ADV_BUG_FIX_ASYN_USE_SYN;
|
|
adv->fix_asyn_xfer = ~0;
|
|
}
|
|
/* Fall Through */
|
|
case ADV_ISA:
|
|
adv->max_dma_count = ADV_ISA_MAX_DMA_COUNT;
|
|
adv->max_dma_addr = ADV_ISA_MAX_DMA_ADDR;
|
|
adv_set_isa_dma_settings(adv);
|
|
break;
|
|
|
|
case ADV_VL:
|
|
adv->max_dma_count = ADV_VL_MAX_DMA_COUNT;
|
|
adv->max_dma_addr = ADV_VL_MAX_DMA_ADDR;
|
|
break;
|
|
default:
|
|
panic("advisaprobe: Invalid card type\n");
|
|
}
|
|
|
|
/* 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);
|
|
id->id_intr = adv_isa_intr;
|
|
|
|
/* Mark as probed */
|
|
adv_isa_ioports[port_index] = 0;
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
advisaattach(struct isa_device *id)
|
|
{
|
|
struct adv_softc *adv;
|
|
|
|
adv = advsoftcs[id->id_unit];
|
|
return (adv_attach(adv));
|
|
}
|
|
|
|
static int
|
|
adv_get_isa_dma_channel(struct adv_softc *adv)
|
|
{
|
|
int channel;
|
|
|
|
channel = ADV_INW(adv, ADV_CONFIG_LSW) & ADV_CFG_LSW_ISA_DMA_CHANNEL;
|
|
if (channel == 0x03)
|
|
return (0);
|
|
else if (channel == 0x00)
|
|
return (7);
|
|
return (channel + 4);
|
|
}
|
|
|
|
static int
|
|
adv_set_isa_dma_settings(struct adv_softc *adv)
|
|
{
|
|
u_int16_t cfg_lsw;
|
|
u_int8_t value;
|
|
|
|
if ((adv->isa_dma_channel >= 5) && (adv->isa_dma_channel <= 7)) {
|
|
if (adv->isa_dma_channel == 7)
|
|
value = 0x00;
|
|
else
|
|
value = adv->isa_dma_channel - 4;
|
|
cfg_lsw = ADV_INW(adv, ADV_CONFIG_LSW)
|
|
& ~ADV_CFG_LSW_ISA_DMA_CHANNEL;
|
|
cfg_lsw |= value;
|
|
ADV_OUTW(adv, ADV_CONFIG_LSW, cfg_lsw);
|
|
|
|
adv->isa_dma_speed &= 0x07;
|
|
adv_set_bank(adv, 1);
|
|
ADV_OUTB(adv, ADV_DMA_SPEED, adv->isa_dma_speed);
|
|
adv_set_bank(adv, 0);
|
|
isa_dmacascade(adv->isa_dma_channel);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
/*
|
|
* Handle an ISA interrupt.
|
|
* XXX should go away as soon as ISA interrupt handlers
|
|
* take a (void *) arg.
|
|
*/
|
|
void
|
|
adv_isa_intr(void *unit)
|
|
{
|
|
struct adv_softc *arg = advsoftcs[(int)unit];
|
|
adv_intr((void *)arg);
|
|
}
|