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/*-
* Copyright (c) 1999 Michael Smith
* 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.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/bio.h>
#include <sys/conf.h>
#include <sys/devicestat.h>
#include <sys/disk.h>
#include <machine/bus_memio.h>
#include <machine/bus_pio.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <pci/pcireg.h>
#include <pci/pcivar.h>
#include <dev/amr/amrio.h>
#include <dev/amr/amrreg.h>
#include <dev/amr/amrvar.h>
#if 0
#define debug(fmt, args...) printf("%s: " fmt "\n", __FUNCTION__ , ##args)
#else
#define debug(fmt, args...)
#endif
static int amr_pci_probe(device_t dev);
static int amr_pci_attach(device_t dev);
static device_method_t amr_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, amr_pci_probe),
DEVMETHOD(device_attach, amr_pci_attach),
DEVMETHOD(device_detach, amr_detach),
DEVMETHOD(device_shutdown, amr_shutdown),
DEVMETHOD(device_suspend, amr_suspend),
DEVMETHOD(device_resume, amr_resume),
DEVMETHOD(bus_print_child, bus_generic_print_child),
DEVMETHOD(bus_driver_added, bus_generic_driver_added),
{ 0, 0 }
};
static driver_t amr_pci_driver = {
"amr",
amr_methods,
sizeof(struct amr_softc)
};
DRIVER_MODULE(amr, pci, amr_pci_driver, amr_devclass, 0, 0);
static struct
{
int vendor;
int device;
int flag;
#define PROBE_SIGNATURE (1<<0)
} amr_device_ids[] = {
{0x101e, 0x9010, 0},
{0x101e, 0x9060, 0},
{0x8086, 0x1960, PROBE_SIGNATURE}, /* generic i960RD, check signature */
{0, 0, 0}
};
static int
amr_pci_probe(device_t dev)
{
int i;
debug("called");
for (i = 0; amr_device_ids[i].vendor != 0; i++) {
if ((pci_get_vendor(dev) == amr_device_ids[i].vendor) &&
(pci_get_device(dev) == amr_device_ids[i].device)) {
/* do we need to test for a signature? */
if ((amr_device_ids[i].flag & PROBE_SIGNATURE) &&
(pci_read_config(dev, AMR_CFG_SIG, 2) != AMR_SIGNATURE))
continue;
device_set_desc(dev, "AMI MegaRAID");
return(0);
}
}
return(ENXIO);
}
static int
amr_pci_attach(device_t dev)
{
struct amr_softc *sc;
int rid, rtype, error;
u_int32_t command;
debug("called");
/*
* Initialise softc.
*/
sc = device_get_softc(dev);
bzero(sc, sizeof(*sc));
sc->amr_dev = dev;
/*
* Determine board type..
*/
command = pci_read_config(dev, PCIR_COMMAND, 1);
if ((pci_get_vendor(dev) == 0x8086) && (pci_get_device(dev) == 0x1960)) {
sc->amr_type = AMR_TYPE_QUARTZ;
/*
* Make sure we are going to be able to talk to this board.
*/
if ((command & PCIM_CMD_MEMEN) == 0) {
device_printf(dev, "memory window not available\n");
return(ENXIO);
}
} else {
sc->amr_type = AMR_TYPE_STD;
/*
* Make sure we are going to be able to talk to this board.
*/
if ((command & PCIM_CMD_PORTEN) == 0) {
device_printf(dev, "I/O window not available\n");
return(ENXIO);
}
}
/* force the busmaster enable bit on */
if (!(command & PCIM_CMD_BUSMASTEREN)) {
device_printf(dev, "busmaster bit not set, enabling\n");
command |= PCIM_CMD_BUSMASTEREN;
pci_write_config(dev, PCIR_COMMAND, command, 2);
}
/*
* Allocate the PCI register window.
*/
rid = AMR_CFG_BASE;
rtype = (sc->amr_type == AMR_TYPE_QUARTZ) ? SYS_RES_MEMORY : SYS_RES_IOPORT;
sc->amr_reg = bus_alloc_resource(dev, rtype, &rid, 0, ~0, 1, RF_ACTIVE);
if (sc->amr_reg == NULL) {
device_printf(sc->amr_dev, "couldn't allocate register window\n");
amr_free(sc);
return(ENXIO);
}
sc->amr_btag = rman_get_bustag(sc->amr_reg);
sc->amr_bhandle = rman_get_bushandle(sc->amr_reg);
/*
* Allocate the parent bus DMA tag appropriate for PCI.
*/
error = bus_dma_tag_create(NULL, /* parent */
1, 0, /* alignment, boundary */
BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
MAXBSIZE, AMR_NSEG, /* maxsize, nsegments */
BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
BUS_DMA_ALLOCNOW, /* flags */
&sc->amr_parent_dmat);
if (error != 0) {
device_printf(dev, "can't allocate parent DMA tag\n");
amr_free(sc);
return(ENOMEM);
}
/*
* Do bus-independant initialisation.
*/
error = amr_attach(sc);
if (error != 0) {
amr_free(sc);
return(error);
}
/*
* Start the controller.
*/
amr_startup(sc);
return(0);
}
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