freebsd-dev/sys/dev/advansys/adv_pci.c
Juli Mallett f1bd1e9dd7 Remove comments about creating DMA tags as children of the DMA tags of their
parent bus where the code has now been modified to do so.

Reviewed by:	scottl
2012-03-12 19:29:32 +00:00

336 lines
9.7 KiB
C

/*-
* Device probe and attach routines for the following
* Advanced Systems Inc. SCSI controllers:
*
* Connectivity Products:
* 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)
* 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,
* 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>
#include <sys/module.h>
#include <sys/mutex.h>
#include <machine/bus.h>
#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
#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)
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;
static int
adv_pci_probe(device_t dev)
{
int rev = pci_get_revid(dev);
switch (pci_get_devid(dev)) {
case PCI_DEVICE_ID_ADVANSYS_1200A:
device_set_desc(dev, "AdvanSys ASC1200A SCSI controller");
return BUS_PROBE_DEFAULT;
case PCI_DEVICE_ID_ADVANSYS_1200B:
device_set_desc(dev, "AdvanSys ASC1200B SCSI controller");
return BUS_PROBE_DEFAULT;
case PCI_DEVICE_ID_ADVANSYS_3000:
if (rev == PCI_DEVICE_REV_ADVANSYS_3150) {
device_set_desc(dev,
"AdvanSys ASC3150 SCSI controller");
return BUS_PROBE_DEFAULT;
} else if (rev == PCI_DEVICE_REV_ADVANSYS_3050) {
device_set_desc(dev,
"AdvanSys ASC3030/50 SCSI controller");
return BUS_PROBE_DEFAULT;
} else if (rev >= PCI_DEVICE_REV_ADVANSYS_3150) {
device_set_desc(dev, "Unknown AdvanSys controller");
return BUS_PROBE_DEFAULT;
}
break;
default:
break;
}
return ENXIO;
}
static int
adv_pci_attach(device_t dev)
{
struct adv_softc *adv;
u_int32_t id;
u_int32_t command;
int error, rid, irqrid;
void *ih;
struct resource *iores, *irqres;
/*
* Determine the chip version.
*/
id = pci_read_config(dev, PCIR_DEVVENDOR, /*bytes*/4);
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;
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) {
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);
if (iores == NULL)
return ENXIO;
if (adv_find_signature(rman_get_bustag(iores),
rman_get_bushandle(iores)) == 0) {
bus_release_resource(dev, SYS_RES_IOPORT, rid, iores);
return ENXIO;
}
adv = adv_alloc(dev, rman_get_bustag(iores), rman_get_bushandle(iores));
if (adv == NULL) {
bus_release_resource(dev, SYS_RES_IOPORT, rid, iores);
return ENXIO;
}
/* Allocate a dmatag for our transfer DMA maps */
error = bus_dma_tag_create(
/* parent */ bus_get_dma_tag(dev),
/* 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);
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);
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);
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;
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);
return ENXIO;
}
adv->max_dma_count = ADV_PCI_MAX_DMA_COUNT;
adv->max_dma_addr = ADV_PCI_MAX_DMA_ADDR;
#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);
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);
return ENXIO;
}
adv_attach(adv);
return 0;
}
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);