freebsd-dev/sys/dev/advansys/adv_pci.c

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/*-
* Device probe and attach routines for the following
* Advanced Systems Inc. SCSI controllers:
*
* Connectivity Products:
adv_pci.c: Update list of supported products. Adjust probe message to include the ASC3030. advansys.c: Fix a long standing bug in the error recovery strategy. In order to keep recovery simple, we freeze the SIMQ, stopping the XPT from submitting new requests. Unfortunately, we also will freeze the SIMQ if bus_dmamap_load blocks or we run out of controller resources. On cards with limited resources it was possible to freeze the SIM a second time and never unfreeze it. Now we more carefully track our exception state so we never freeze the SIMQ more than once. Don't rely on pointers fitting in a 32bit field stored in the per-transaction data structures on the card. Use an index to an array of transaction mapping structures instead. This should allow this driver to work on the Alpha. Deal with the ASC3030 which is almost idistinguishable from the ASC3050. Unfortunately the ASC3030 does not work at Ultra speeds, so if we can't find an eeprom, we must assume that ultra is disabled. The SIIG cards using the 3030 do not have eeproms. As a side effect, we now honor the ultra disable bit in the eeprom if it is present. Don't bother attempting to write corrected eeprom data back to the eeprom. We can function just fine if the data is corrupted and I'd rather not risk messing up the user's eeprom. Modify the interrupt handler to catch latched external bus rests. Dynamically determine the maximum number of S/G elements we can map at a single time. The nature of the firmware interface for these cards makes this value dependent on the number of "queues" the card can support. advlib.c: advlib.h: advmcode.c: advmcode.h: Synchronize with the latest firmware image released in the Linux Advansys driver.
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* ABP902/3902 - Bus-Master PCI (16 CDB)
* ABP3905 - Bus-Master PCI (16 CDB)
* ABP915 - Bus-Master PCI (16 CDB)
* ABP920 - Bus-Master PCI (16 CDB)
* ABP3922 - Bus-Master PCI (16 CDB)
* ABP3925 - Bus-Master PCI (16 CDB)
* ABP930 - Bus-Master PCI (16 CDB) *
* ABP930U - Bus-Master PCI Ultra (16 CDB)
* ABP930UA - Bus-Master PCI Ultra (16 CDB)
* ABP960 - Bus-Master PCI MAC/PC (16 CDB) **
* ABP960U - Bus-Master PCI MAC/PC (16 CDB) **
*
* Single Channel Products:
* ABP940 - Bus-Master PCI (240 CDB)
* ABP940U - Bus-Master PCI Ultra (240 CDB)
* ABP940UA/3940UA - Bus-Master PCI Ultra (240 CDB)
* ABP3960UA - Bus-Master PCI MAC/PC (240 CDB)
* ABP970 - Bus-Master PCI MAC/PC (240 CDB)
* ABP970U - Bus-Master PCI MAC/PC Ultra (240 CDB)
*
* Dual Channel Products:
* ABP950 - Dual Channel Bus-Master PCI (240 CDB Per Channel)
* ABP980 - Four Channel Bus-Master PCI (240 CDB Per Channel)
* ABP980U - Four Channel Bus-Master PCI Ultra (240 CDB Per Channel)
adv_pci.c: Update list of supported products. Adjust probe message to include the ASC3030. advansys.c: Fix a long standing bug in the error recovery strategy. In order to keep recovery simple, we freeze the SIMQ, stopping the XPT from submitting new requests. Unfortunately, we also will freeze the SIMQ if bus_dmamap_load blocks or we run out of controller resources. On cards with limited resources it was possible to freeze the SIM a second time and never unfreeze it. Now we more carefully track our exception state so we never freeze the SIMQ more than once. Don't rely on pointers fitting in a 32bit field stored in the per-transaction data structures on the card. Use an index to an array of transaction mapping structures instead. This should allow this driver to work on the Alpha. Deal with the ASC3030 which is almost idistinguishable from the ASC3050. Unfortunately the ASC3030 does not work at Ultra speeds, so if we can't find an eeprom, we must assume that ultra is disabled. The SIIG cards using the 3030 do not have eeproms. As a side effect, we now honor the ultra disable bit in the eeprom if it is present. Don't bother attempting to write corrected eeprom data back to the eeprom. We can function just fine if the data is corrupted and I'd rather not risk messing up the user's eeprom. Modify the interrupt handler to catch latched external bus rests. Dynamically determine the maximum number of S/G elements we can map at a single time. The nature of the firmware interface for these cards makes this value dependent on the number of "queues" the card can support. advlib.c: advlib.h: advmcode.c: advmcode.h: Synchronize with the latest firmware image released in the Linux Advansys driver.
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* ABP980UA/3980UA - Four Channel Bus-Master PCI Ultra (16 CDB Per Chan.)
*
* Footnotes:
* * This board has been sold by SIIG as the Fast SCSI Pro PCI.
* ** This board has been sold by Iomega as a Jaz Jet PCI adapter.
*
* Copyright (c) 1997 Justin 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,
adv_pci.c: Update list of supported products. Adjust probe message to include the ASC3030. advansys.c: Fix a long standing bug in the error recovery strategy. In order to keep recovery simple, we freeze the SIMQ, stopping the XPT from submitting new requests. Unfortunately, we also will freeze the SIMQ if bus_dmamap_load blocks or we run out of controller resources. On cards with limited resources it was possible to freeze the SIM a second time and never unfreeze it. Now we more carefully track our exception state so we never freeze the SIMQ more than once. Don't rely on pointers fitting in a 32bit field stored in the per-transaction data structures on the card. Use an index to an array of transaction mapping structures instead. This should allow this driver to work on the Alpha. Deal with the ASC3030 which is almost idistinguishable from the ASC3050. Unfortunately the ASC3030 does not work at Ultra speeds, so if we can't find an eeprom, we must assume that ultra is disabled. The SIIG cards using the 3030 do not have eeproms. As a side effect, we now honor the ultra disable bit in the eeprom if it is present. Don't bother attempting to write corrected eeprom data back to the eeprom. We can function just fine if the data is corrupted and I'd rather not risk messing up the user's eeprom. Modify the interrupt handler to catch latched external bus rests. Dynamically determine the maximum number of S/G elements we can map at a single time. The nature of the firmware interface for these cards makes this value dependent on the number of "queues" the card can support. advlib.c: advlib.h: advmcode.c: advmcode.h: Synchronize with the latest firmware image released in the Linux Advansys driver.
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* without modification.
* 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/lock.h>
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#include <sys/module.h>
#include <sys/mutex.h>
#include <machine/bus.h>
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#include <machine/resource.h>
#include <sys/bus.h>
#include <sys/rman.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/advansys/advansys.h>
#define PCI_BASEADR0 PCIR_BAR(0) /* I/O Address */
#define PCI_BASEADR1 PCIR_BAR(1) /* Mem I/O Address */
#define PCI_DEVICE_ID_ADVANSYS_1200A 0x110010CD
#define PCI_DEVICE_ID_ADVANSYS_1200B 0x120010CD
adv_pci.c: Update list of supported products. Adjust probe message to include the ASC3030. advansys.c: Fix a long standing bug in the error recovery strategy. In order to keep recovery simple, we freeze the SIMQ, stopping the XPT from submitting new requests. Unfortunately, we also will freeze the SIMQ if bus_dmamap_load blocks or we run out of controller resources. On cards with limited resources it was possible to freeze the SIM a second time and never unfreeze it. Now we more carefully track our exception state so we never freeze the SIMQ more than once. Don't rely on pointers fitting in a 32bit field stored in the per-transaction data structures on the card. Use an index to an array of transaction mapping structures instead. This should allow this driver to work on the Alpha. Deal with the ASC3030 which is almost idistinguishable from the ASC3050. Unfortunately the ASC3030 does not work at Ultra speeds, so if we can't find an eeprom, we must assume that ultra is disabled. The SIIG cards using the 3030 do not have eeproms. As a side effect, we now honor the ultra disable bit in the eeprom if it is present. Don't bother attempting to write corrected eeprom data back to the eeprom. We can function just fine if the data is corrupted and I'd rather not risk messing up the user's eeprom. Modify the interrupt handler to catch latched external bus rests. Dynamically determine the maximum number of S/G elements we can map at a single time. The nature of the firmware interface for these cards makes this value dependent on the number of "queues" the card can support. advlib.c: advlib.h: advmcode.c: advmcode.h: Synchronize with the latest firmware image released in the Linux Advansys driver.
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#define PCI_DEVICE_ID_ADVANSYS_3000 0x130010CD
#define PCI_DEVICE_REV_ADVANSYS_3150 0x02
#define PCI_DEVICE_REV_ADVANSYS_3050 0x03
#define ADV_PCI_MAX_DMA_ADDR (0xFFFFFFFFL)
#define ADV_PCI_MAX_DMA_COUNT (0xFFFFFFFFL)
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static int adv_pci_probe(device_t);
static int adv_pci_attach(device_t);
/*
* The overrun buffer shared amongst all PCI adapters.
*/
static void* overrun_buf;
static bus_dma_tag_t overrun_dmat;
static bus_dmamap_t overrun_dmamap;
static bus_addr_t overrun_physbase;
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static int
adv_pci_probe(device_t dev)
{
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int rev = pci_get_revid(dev);
adv_pci.c: Update list of supported products. Adjust probe message to include the ASC3030. advansys.c: Fix a long standing bug in the error recovery strategy. In order to keep recovery simple, we freeze the SIMQ, stopping the XPT from submitting new requests. Unfortunately, we also will freeze the SIMQ if bus_dmamap_load blocks or we run out of controller resources. On cards with limited resources it was possible to freeze the SIM a second time and never unfreeze it. Now we more carefully track our exception state so we never freeze the SIMQ more than once. Don't rely on pointers fitting in a 32bit field stored in the per-transaction data structures on the card. Use an index to an array of transaction mapping structures instead. This should allow this driver to work on the Alpha. Deal with the ASC3030 which is almost idistinguishable from the ASC3050. Unfortunately the ASC3030 does not work at Ultra speeds, so if we can't find an eeprom, we must assume that ultra is disabled. The SIIG cards using the 3030 do not have eeproms. As a side effect, we now honor the ultra disable bit in the eeprom if it is present. Don't bother attempting to write corrected eeprom data back to the eeprom. We can function just fine if the data is corrupted and I'd rather not risk messing up the user's eeprom. Modify the interrupt handler to catch latched external bus rests. Dynamically determine the maximum number of S/G elements we can map at a single time. The nature of the firmware interface for these cards makes this value dependent on the number of "queues" the card can support. advlib.c: advlib.h: advmcode.c: advmcode.h: Synchronize with the latest firmware image released in the Linux Advansys driver.
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switch (pci_get_devid(dev)) {
case PCI_DEVICE_ID_ADVANSYS_1200A:
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device_set_desc(dev, "AdvanSys ASC1200A SCSI controller");
return BUS_PROBE_DEFAULT;
case PCI_DEVICE_ID_ADVANSYS_1200B:
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device_set_desc(dev, "AdvanSys ASC1200B SCSI controller");
return BUS_PROBE_DEFAULT;
adv_pci.c: Update list of supported products. Adjust probe message to include the ASC3030. advansys.c: Fix a long standing bug in the error recovery strategy. In order to keep recovery simple, we freeze the SIMQ, stopping the XPT from submitting new requests. Unfortunately, we also will freeze the SIMQ if bus_dmamap_load blocks or we run out of controller resources. On cards with limited resources it was possible to freeze the SIM a second time and never unfreeze it. Now we more carefully track our exception state so we never freeze the SIMQ more than once. Don't rely on pointers fitting in a 32bit field stored in the per-transaction data structures on the card. Use an index to an array of transaction mapping structures instead. This should allow this driver to work on the Alpha. Deal with the ASC3030 which is almost idistinguishable from the ASC3050. Unfortunately the ASC3030 does not work at Ultra speeds, so if we can't find an eeprom, we must assume that ultra is disabled. The SIIG cards using the 3030 do not have eeproms. As a side effect, we now honor the ultra disable bit in the eeprom if it is present. Don't bother attempting to write corrected eeprom data back to the eeprom. We can function just fine if the data is corrupted and I'd rather not risk messing up the user's eeprom. Modify the interrupt handler to catch latched external bus rests. Dynamically determine the maximum number of S/G elements we can map at a single time. The nature of the firmware interface for these cards makes this value dependent on the number of "queues" the card can support. advlib.c: advlib.h: advmcode.c: advmcode.h: Synchronize with the latest firmware image released in the Linux Advansys driver.
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case PCI_DEVICE_ID_ADVANSYS_3000:
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if (rev == PCI_DEVICE_REV_ADVANSYS_3150) {
device_set_desc(dev,
"AdvanSys ASC3150 SCSI controller");
return BUS_PROBE_DEFAULT;
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} else if (rev == PCI_DEVICE_REV_ADVANSYS_3050) {
device_set_desc(dev,
"AdvanSys ASC3030/50 SCSI controller");
return BUS_PROBE_DEFAULT;
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} else if (rev >= PCI_DEVICE_REV_ADVANSYS_3150) {
device_set_desc(dev, "Unknown AdvanSys controller");
return BUS_PROBE_DEFAULT;
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}
break;
default:
break;
}
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return ENXIO;
}
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static int
adv_pci_attach(device_t dev)
{
struct adv_softc *adv;
u_int32_t id;
u_int32_t command;
int error, rid, irqrid;
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void *ih;
struct resource *iores, *irqres;
/*
* Determine the chip version.
*/
id = pci_read_config(dev, PCIR_DEVVENDOR, /*bytes*/4);
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command = pci_read_config(dev, PCIR_COMMAND, /*bytes*/1);
/*
* These cards do not allow memory mapped accesses, so we must
* ensure that I/O accesses are available or we won't be able
* to talk to them.
*/
if ((command & (PCIM_CMD_PORTEN|PCIM_CMD_BUSMASTEREN))
!= (PCIM_CMD_PORTEN|PCIM_CMD_BUSMASTEREN)) {
command |= PCIM_CMD_PORTEN|PCIM_CMD_BUSMASTEREN;
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pci_write_config(dev, PCIR_COMMAND, command, /*bytes*/1);
}
/*
* Early chips can't handle non-zero latency timer settings.
*/
if (id == PCI_DEVICE_ID_ADVANSYS_1200A
|| id == PCI_DEVICE_ID_ADVANSYS_1200B) {
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pci_write_config(dev, PCIR_LATTIMER, /*value*/0, /*bytes*/1);
}
rid = PCI_BASEADR0;
iores = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,
RF_ACTIVE);
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if (iores == NULL)
return ENXIO;
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if (adv_find_signature(rman_get_bustag(iores),
rman_get_bushandle(iores)) == 0) {
bus_release_resource(dev, SYS_RES_IOPORT, rid, iores);
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return ENXIO;
}
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adv = adv_alloc(dev, rman_get_bustag(iores), rman_get_bushandle(iores));
if (adv == NULL) {
bus_release_resource(dev, SYS_RES_IOPORT, rid, iores);
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return ENXIO;
}
/* Allocate a dmatag for our transfer DMA maps */
/* XXX Should be a child of the PCI bus dma tag */
error = bus_dma_tag_create(
/* parent */ NULL,
/* alignment */ 1,
/* boundary */ 0,
/* lowaddr */ ADV_PCI_MAX_DMA_ADDR,
/* highaddr */ BUS_SPACE_MAXADDR,
/* filter */ NULL,
/* filterarg */ NULL,
/* maxsize */ BUS_SPACE_MAXSIZE_32BIT,
/* nsegments */ ~0,
/* maxsegsz */ ADV_PCI_MAX_DMA_COUNT,
/* flags */ 0,
/* lockfunc */ busdma_lock_mutex,
/* lockarg */ &Giant,
&adv->parent_dmat);
if (error != 0) {
printf("%s: Could not allocate DMA tag - error %d\n",
adv_name(adv), error);
adv_free(adv);
bus_release_resource(dev, SYS_RES_IOPORT, rid, iores);
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return ENXIO;
}
adv->init_level++;
if (overrun_buf == NULL) {
/* Need to allocate our overrun buffer */
if (bus_dma_tag_create(
/* parent */ adv->parent_dmat,
/* alignment */ 8,
/* boundary */ 0,
/* lowaddr */ ADV_PCI_MAX_DMA_ADDR,
/* highaddr */ BUS_SPACE_MAXADDR,
/* filter */ NULL,
/* filterarg */ NULL,
/* maxsize */ ADV_OVERRUN_BSIZE,
/* nsegments */ 1,
/* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT,
/* flags */ 0,
/* lockfunc */ busdma_lock_mutex,
/* lockarg */ &Giant,
&overrun_dmat) != 0) {
bus_dma_tag_destroy(adv->parent_dmat);
adv_free(adv);
bus_release_resource(dev, SYS_RES_IOPORT, rid, iores);
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return ENXIO;
}
if (bus_dmamem_alloc(overrun_dmat,
&overrun_buf,
BUS_DMA_NOWAIT,
&overrun_dmamap) != 0) {
bus_dma_tag_destroy(overrun_dmat);
bus_dma_tag_destroy(adv->parent_dmat);
adv_free(adv);
bus_release_resource(dev, SYS_RES_IOPORT, rid, iores);
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return ENXIO;
}
/* 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;
/*
* Stop the chip.
*/
ADV_OUTB(adv, ADV_CHIP_CTRL, ADV_CC_HALT);
ADV_OUTW(adv, ADV_CHIP_STATUS, 0);
adv->chip_version = ADV_INB(adv, ADV_NONEISA_CHIP_REVISION);
adv->type = ADV_PCI;
/*
* Setup active negation and signal filtering.
*/
{
u_int8_t extra_cfg;
if (adv->chip_version >= ADV_CHIP_VER_PCI_ULTRA_3150)
adv->type |= ADV_ULTRA;
adv_pci.c: Update list of supported products. Adjust probe message to include the ASC3030. advansys.c: Fix a long standing bug in the error recovery strategy. In order to keep recovery simple, we freeze the SIMQ, stopping the XPT from submitting new requests. Unfortunately, we also will freeze the SIMQ if bus_dmamap_load blocks or we run out of controller resources. On cards with limited resources it was possible to freeze the SIM a second time and never unfreeze it. Now we more carefully track our exception state so we never freeze the SIMQ more than once. Don't rely on pointers fitting in a 32bit field stored in the per-transaction data structures on the card. Use an index to an array of transaction mapping structures instead. This should allow this driver to work on the Alpha. Deal with the ASC3030 which is almost idistinguishable from the ASC3050. Unfortunately the ASC3030 does not work at Ultra speeds, so if we can't find an eeprom, we must assume that ultra is disabled. The SIIG cards using the 3030 do not have eeproms. As a side effect, we now honor the ultra disable bit in the eeprom if it is present. Don't bother attempting to write corrected eeprom data back to the eeprom. We can function just fine if the data is corrupted and I'd rather not risk messing up the user's eeprom. Modify the interrupt handler to catch latched external bus rests. Dynamically determine the maximum number of S/G elements we can map at a single time. The nature of the firmware interface for these cards makes this value dependent on the number of "queues" the card can support. advlib.c: advlib.h: advmcode.c: advmcode.h: Synchronize with the latest firmware image released in the Linux Advansys driver.
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if (adv->chip_version == ADV_CHIP_VER_PCI_ULTRA_3050)
extra_cfg = ADV_IFC_ACT_NEG | ADV_IFC_WR_EN_FILTER;
else
extra_cfg = ADV_IFC_ACT_NEG | ADV_IFC_SLEW_RATE;
ADV_OUTB(adv, ADV_REG_IFC, extra_cfg);
}
if (adv_init(adv) != 0) {
adv_free(adv);
bus_release_resource(dev, SYS_RES_IOPORT, rid, iores);
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return ENXIO;
}
adv->max_dma_count = ADV_PCI_MAX_DMA_COUNT;
adv->max_dma_addr = ADV_PCI_MAX_DMA_ADDR;
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#if defined(CC_DISABLE_PCI_PARITY_INT) && CC_DISABLE_PCI_PARITY_INT
{
u_int16_t config_msw;
config_msw = ADV_INW(adv, ADV_CONFIG_MSW);
config_msw &= 0xFFC0;
ADV_OUTW(adv, ADV_CONFIG_MSW, config_msw);
}
#endif
if (id == PCI_DEVICE_ID_ADVANSYS_1200A
|| id == PCI_DEVICE_ID_ADVANSYS_1200B) {
adv->bug_fix_control |= ADV_BUG_FIX_IF_NOT_DWB;
adv->bug_fix_control |= ADV_BUG_FIX_ASYN_USE_SYN;
adv->fix_asyn_xfer = ~0;
}
irqrid = 0;
irqres = bus_alloc_resource_any(dev, SYS_RES_IRQ, &irqrid,
RF_SHAREABLE | RF_ACTIVE);
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if (irqres == NULL ||
bus_setup_intr(dev, irqres, INTR_TYPE_CAM|INTR_ENTROPY, NULL,
adv_intr, adv, &ih)) {
adv_free(adv);
bus_release_resource(dev, SYS_RES_IOPORT, rid, iores);
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return ENXIO;
}
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adv_attach(adv);
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return 0;
}
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static device_method_t adv_pci_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, adv_pci_probe),
DEVMETHOD(device_attach, adv_pci_attach),
{ 0, 0 }
};
static driver_t adv_pci_driver = {
"adv", adv_pci_methods, sizeof(struct adv_softc)
};
static devclass_t adv_pci_devclass;
DRIVER_MODULE(adv, pci, adv_pci_driver, adv_pci_devclass, 0, 0);
MODULE_DEPEND(adv, pci, 1, 1, 1);