/*-
* Copyright (c) 2000 Michael Smith
* Copyright (c) 2000 BSDi
* 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.
* 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.
*
* 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.
*
* $FreeBSD$
*/
/*
* PCI bus interface and resource allocation.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <dev/aac/aac_compat.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/devicestat.h>
#include <sys/disk.h>
#include <machine/bus_memio.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <pci/pcireg.h>
#include <pci/pcivar.h>
#include <dev/aac/aacreg.h>
#include <dev/aac/aac_ioctl.h>
#include <dev/aac/aacvar.h>
static int aac_pci_probe(device_t dev);
static int aac_pci_attach(device_t dev);
static device_method_t aac_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, aac_pci_probe),
DEVMETHOD(device_attach, aac_pci_attach),
DEVMETHOD(device_detach, aac_detach),
DEVMETHOD(device_shutdown, aac_shutdown),
DEVMETHOD(device_suspend, aac_suspend),
DEVMETHOD(device_resume, aac_resume),
DEVMETHOD(bus_print_child, bus_generic_print_child),
DEVMETHOD(bus_driver_added, bus_generic_driver_added),
{ 0, 0 }
};
static driver_t aac_pci_driver = {
"aac",
aac_methods,
sizeof(struct aac_softc)
};
DRIVER_MODULE(aac, pci, aac_pci_driver, aac_devclass, 0, 0);
struct aac_ident
{
u_int16_t vendor;
u_int16_t device;
u_int16_t subvendor;
u_int16_t subdevice;
int hwif;
char *desc;
} aac_identifiers[] = {
{0x1028, 0x0001, 0x1028, 0x0001, AAC_HWIF_I960RX, "Dell PERC 2/Si"},
{0x1028, 0x0002, 0x1028, 0x0002, AAC_HWIF_I960RX, "Dell PERC 3/Di"},
{0x1028, 0x0003, 0x1028, 0x0003, AAC_HWIF_I960RX, "Dell PERC 3/Si"},
{0x9005, 0x0282, 0x9005, 0x0282, AAC_HWIF_I960RX, "Adaptec AAC-2622"},
{0x1011, 0x0046, 0x9005, 0x0364, AAC_HWIF_STRONGARM, "Adaptec AAC-364"},
{0x1011, 0x0046, 0x9005, 0x0365, AAC_HWIF_STRONGARM, "Adaptec AAC-3642"},
{0x1011, 0x0046, 0x9005, 0x1364, AAC_HWIF_STRONGARM, "Dell PERC 2/QC"},
{0x1011, 0x0046, 0x9005, 0x1365, AAC_HWIF_STRONGARM, "Dell PERC 3/QC"}, /* XXX guess */
{0x1011, 0x0046, 0x103c, 0x10c2, AAC_HWIF_STRONGARM, "HP NetRaid-4M"},
{0, 0, 0, 0, 0, 0}
};
/********************************************************************************
* Determine whether this is one of our supported adapters.
*/
static int
aac_pci_probe(device_t dev)
{
struct aac_ident *m;
debug_called(1);
for (m = aac_identifiers; m->vendor != 0; m++) {
if ((m->vendor == pci_get_vendor(dev)) &&
(m->device == pci_get_device(dev)) &&
((m->subvendor == 0) || (m->subvendor == pci_get_subvendor(dev))) &&
((m->subdevice == 0) || ((m->subdevice == pci_get_subdevice(dev))))) {
device_set_desc(dev, m->desc);
return(-10); /* allow room to be overridden */
}
}
return(ENXIO);
}
/********************************************************************************
* Allocate resources for our device, set up the bus interface.
*/
static int
aac_pci_attach(device_t dev)
{
struct aac_softc *sc;
int i, error;
u_int32_t command;
debug_called(1);
/*
* Initialise softc.
*/
sc = device_get_softc(dev);
bzero(sc, sizeof(*sc));
sc->aac_dev = dev;
/* assume failure is 'not configured' */
error = ENXIO;
/*
* Verify that the adapter is correctly set up in PCI space.
*/
command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2);
command |= PCIM_CMD_BUSMASTEREN;
pci_write_config(dev, PCIR_COMMAND, command, 2);
command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2);
if (!(command & PCIM_CMD_BUSMASTEREN)) {
device_printf(sc->aac_dev, "can't enable bus-master feature\n");
goto out;
}
if ((command & PCIM_CMD_MEMEN) == 0) {
device_printf(sc->aac_dev, "memory window not available\n");
goto out;
}
/*
* Allocate the PCI register window.
*/
sc->aac_regs_rid = 0x10; /* first base address register */
if ((sc->aac_regs_resource = bus_alloc_resource(sc->aac_dev, SYS_RES_MEMORY, &sc->aac_regs_rid,
0, ~0, 1, RF_ACTIVE)) == NULL) {
device_printf(sc->aac_dev, "couldn't allocate register window\n");
goto out;
}
sc->aac_btag = rman_get_bustag(sc->aac_regs_resource);
sc->aac_bhandle = rman_get_bushandle(sc->aac_regs_resource);
/*
* Allocate and connect our interrupt.
*/
sc->aac_irq_rid = 0;
if ((sc->aac_irq = bus_alloc_resource(sc->aac_dev, SYS_RES_IRQ, &sc->aac_irq_rid,
0, ~0, 1, RF_SHAREABLE | RF_ACTIVE)) == NULL) {
device_printf(sc->aac_dev, "can't allocate interrupt\n");
goto out;
}
if (bus_setup_intr(sc->aac_dev, sc->aac_irq, INTR_TYPE_BIO, aac_intr, sc, &sc->aac_intr)) {
device_printf(sc->aac_dev, "can't set up interrupt\n");
goto out;
}
/* assume failure is 'out of memory' */
error = ENOMEM;
/*
* Allocate the parent bus DMA tag appropriate for our PCI interface.
*
* Note that some of these controllers are 64-bit capable.
*/
if (bus_dma_tag_create(NULL, /* parent */
1, 0, /* alignment, boundary */
BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
MAXBSIZE, AAC_MAXSGENTRIES, /* maxsize, nsegments */
BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
BUS_DMA_ALLOCNOW, /* flags */
&sc->aac_parent_dmat)) {
device_printf(sc->aac_dev, "can't allocate parent DMA tag\n");
goto out;
}
/*
* Create DMA tag for mapping buffers into controller-addressable space.
*/
if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */
1, 0, /* alignment, boundary */
BUS_SPACE_MAXADDR, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
MAXBSIZE, AAC_MAXSGENTRIES, /* maxsize, nsegments */
BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
0, /* flags */
&sc->aac_buffer_dmat)) {
device_printf(sc->aac_dev, "can't allocate buffer DMA tag\n");
goto out;
}
/*
* Create DMA tag for mapping FIBs into controller-addressable space..
*/
if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */
1, 0, /* alignment, boundary */
BUS_SPACE_MAXADDR, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
AAC_FIB_COUNT * sizeof(struct aac_fib), 1, /* maxsize, nsegments */
BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
0, /* flags */
&sc->aac_fib_dmat)) {
device_printf(sc->aac_dev, "can't allocate FIB DMA tag\n");
goto out;
}
/*
* Detect the hardware interface version, set up the bus interface indirection.
*/
sc->aac_hwif = AAC_HWIF_UNKNOWN;
for (i = 0; aac_identifiers[i].vendor != 0; i++) {
if ((aac_identifiers[i].vendor == pci_get_vendor(dev)) &&
(aac_identifiers[i].device == pci_get_device(dev))) {
sc->aac_hwif = aac_identifiers[i].hwif;
switch(sc->aac_hwif) {
case AAC_HWIF_I960RX:
debug(2, "set hardware up for i960Rx");
sc->aac_if = aac_rx_interface;
break;
case AAC_HWIF_STRONGARM:
debug(2, "set hardware up for StrongARM");
sc->aac_if = aac_sa_interface;
break;
}
break;
}
}
if (sc->aac_hwif == AAC_HWIF_UNKNOWN) {
device_printf(sc->aac_dev, "unknown hardware type\n");
error = ENXIO;
goto out;
}
/*
* Do bus-independent initialisation.
*/
error = aac_attach(sc);
out:
if (error)
aac_free(sc);
return(error);
}
