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/*-
* Copyright (c) 2006 IronPort Systems Inc. <ambrisko@ironport.com>
* 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/condvar.h>
#include <sys/eventhandler.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/rman.h>
#include <sys/selinfo.h>
#include <machine/pci_cfgreg.h>
#include <dev/pci/pcireg.h>
#include <isa/isavar.h>
#ifdef LOCAL_MODULE
#include <ipmi.h>
#include <ipmivars.h>
#else
#include <sys/ipmi.h>
#include <dev/ipmi/ipmivars.h>
#endif
static void
ipmi_isa_identify(driver_t *driver, device_t parent)
{
struct ipmi_get_info info;
uint32_t devid;
if (ipmi_smbios_identify(&info) && info.iface_type != SSIF_MODE &&
device_find_child(parent, "ipmi", -1) == NULL) {
/*
* XXX: Hack alert. On some broken systems, the IPMI
* interface is described via SMBIOS, but the actual
* IO resource is in a PCI device BAR, so we have to let
* the PCI device attach ipmi instead. In that case don't
* create an isa ipmi device. For now we hardcode the list
* of bus, device, function tuples.
*/
devid = pci_cfgregread(0, 4, 2, PCIR_DEVVENDOR, 4);
if (devid != 0xffffffff &&
ipmi_pci_match(devid & 0xffff, devid >> 16) != NULL)
return;
BUS_ADD_CHILD(parent, 0, "ipmi", -1);
}
}
static int
ipmi_isa_probe(device_t dev)
{
/* Skip any PNP devices. */
if (isa_get_logicalid(dev) != 0)
return (ENXIO);
device_set_desc(dev, "IPMI System Interface");
return (BUS_PROBE_DEFAULT);
}
static int
ipmi_isa_attach(device_t dev)
{
struct ipmi_softc *sc = device_get_softc(dev);
struct ipmi_get_info info;
const char *mode;
int count, error, i, type;
/* This should never fail. */
if (!ipmi_smbios_identify(&info))
return (ENXIO);
/*
* Give other drivers precedence. Unfortunately, this doesn't
* work if we have an SMBIOS table that duplicates a PCI device
* that's later on the bus than the PCI-ISA bridge.
*/
if (ipmi_attached)
return (EBUSY);
switch (info.iface_type) {
case KCS_MODE:
count = 2;
mode = "KCS";
break;
case SMIC_MODE:
count = 3;
mode = "SMIC";
break;
case BT_MODE:
device_printf(dev, "BT mode is unsupported\n");
return (ENXIO);
default:
return (ENXIO);
}
error = 0;
sc->ipmi_dev = dev;
device_printf(dev, "%s mode found at %s 0x%jx alignment 0x%x on %s\n",
mode, info.io_mode ? "io" : "mem",
(uintmax_t)info.address, info.offset,
device_get_name(device_get_parent(dev)));
if (info.io_mode)
type = SYS_RES_IOPORT;
else
type = SYS_RES_MEMORY;
sc->ipmi_io_type = type;
sc->ipmi_io_spacing = info.offset;
if (info.offset == 1) {
sc->ipmi_io_rid = 0;
sc->ipmi_io_res[0] = bus_alloc_resource(dev, type,
&sc->ipmi_io_rid, info.address, info.address + count - 1,
count, RF_ACTIVE);
if (sc->ipmi_io_res[0] == NULL) {
device_printf(dev, "couldn't configure I/O resource\n");
return (ENXIO);
}
} else {
for (i = 0; i < count; i++) {
sc->ipmi_io_rid = i;
sc->ipmi_io_res[i] = bus_alloc_resource(dev, type,
&sc->ipmi_io_rid, info.address + i * info.offset,
info.address + i * info.offset, 1, RF_ACTIVE);
if (sc->ipmi_io_res[i] == NULL) {
device_printf(dev,
"couldn't configure I/O resource\n");
error = ENXIO;
sc->ipmi_io_rid = 0;
goto bad;
}
}
sc->ipmi_io_rid = 0;
}
if (info.irq != 0) {
sc->ipmi_irq_rid = 0;
sc->ipmi_irq_res = bus_alloc_resource(dev, SYS_RES_IRQ,
&sc->ipmi_irq_rid, info.irq, info.irq, 1,
RF_SHAREABLE | RF_ACTIVE);
}
switch (info.iface_type) {
case KCS_MODE:
error = ipmi_kcs_attach(sc);
if (error)
goto bad;
break;
case SMIC_MODE:
error = ipmi_smic_attach(sc);
if (error)
goto bad;
break;
}
error = ipmi_attach(dev);
if (error)
goto bad;
return (0);
bad:
ipmi_release_resources(dev);
return (error);
}
static device_method_t ipmi_methods[] = {
/* Device interface */
DEVMETHOD(device_identify, ipmi_isa_identify),
DEVMETHOD(device_probe, ipmi_isa_probe),
DEVMETHOD(device_attach, ipmi_isa_attach),
DEVMETHOD(device_detach, ipmi_detach),
{ 0, 0 }
};
static driver_t ipmi_isa_driver = {
"ipmi",
ipmi_methods,
sizeof(struct ipmi_softc),
};
DRIVER_MODULE(ipmi_isa, isa, ipmi_isa_driver, ipmi_devclass, 0, 0);
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