/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* 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/kernel.h>
#include <sys/module.h>
#include <sys/rman.h>
#include <sys/selinfo.h>
#include <contrib/dev/acpica/include/acpi.h>
#include <dev/acpica/acpivar.h>
/* Hooks for the ACPI CA debugging infrastructure */
#define _COMPONENT ACPI_BUTTON
ACPI_MODULE_NAME("IPMI")
#ifdef LOCAL_MODULE
#include <ipmi.h>
#include <ipmivars.h>
#else
#include <sys/ipmi.h>
#include <dev/ipmi/ipmivars.h>
#endif
static int ipmi_acpi_probe(device_t);
static int ipmi_acpi_attach(device_t);
int
ipmi_acpi_probe(device_t dev)
{
static char *ipmi_ids[] = {"IPI0001", NULL};
int rv;
if (ipmi_attached)
return (EBUSY);
if (acpi_disabled("ipmi"))
return (ENXIO);
rv = ACPI_ID_PROBE(device_get_parent(dev), dev, ipmi_ids, NULL);
if (rv <= 0)
device_set_desc(dev, "IPMI System Interface");
return (rv);
}
static int
ipmi_acpi_attach(device_t dev)
{
ACPI_HANDLE devh;
const char *mode;
struct ipmi_get_info info;
struct ipmi_softc *sc = device_get_softc(dev);
int count, error, flags, i, type;
int interface_type = 0, interface_version = 0;
error = 0;
devh = acpi_get_handle(dev);
if (ACPI_FAILURE(acpi_GetInteger(devh, "_IFT", &interface_type)))
return (ENXIO);
if (ACPI_FAILURE(acpi_GetInteger(devh, "_SRV", &interface_version)))
return (ENXIO);
switch (interface_type) {
case KCS_MODE:
count = 2;
mode = "KCS";
break;
case SMIC_MODE:
count = 3;
mode = "SMIC";
break;
case BT_MODE:
device_printf(dev, "BT interface not supported\n");
return (ENXIO);
case SSIF_MODE:
if (ACPI_FAILURE(acpi_GetInteger(devh, "_ADR", &flags)))
return (ENXIO);
info.address = flags;
device_printf(dev, "SSIF interface not supported on ACPI\n");
return (0);
default:
return (ENXIO);
}
if (bus_get_resource(dev, SYS_RES_IOPORT, 0, NULL, NULL) == 0)
type = SYS_RES_IOPORT;
else if (bus_get_resource(dev, SYS_RES_MEMORY, 0, NULL, NULL) == 0)
type = SYS_RES_MEMORY;
else {
device_printf(dev, "unknown resource type\n");
return (ENXIO);
}
sc->ipmi_io_rid = 0;
sc->ipmi_io_res[0] = bus_alloc_resource_any(dev, type,
&sc->ipmi_io_rid, RF_ACTIVE);
sc->ipmi_io_type = type;
sc->ipmi_io_spacing = 1;
if (sc->ipmi_io_res[0] == NULL) {
device_printf(dev, "couldn't configure I/O resource\n");
return (ENXIO);
}
/* If we have multiple resources, allocate up to MAX_RES. */
for (i = 1; i < MAX_RES; i++) {
sc->ipmi_io_rid = i;
sc->ipmi_io_res[i] = bus_alloc_resource_any(dev, type,
&sc->ipmi_io_rid, RF_ACTIVE);
if (sc->ipmi_io_res[i] == NULL)
break;
}
sc->ipmi_io_rid = 0;
/* If we have multiple resources, make sure we have enough of them. */
if (sc->ipmi_io_res[1] != NULL && sc->ipmi_io_res[count - 1] == NULL) {
device_printf(dev, "too few I/O resources\n");
error = ENXIO;
goto bad;
}
device_printf(dev, "%s mode found at %s 0x%jx on %s\n",
mode, type == SYS_RES_IOPORT ? "io" : "mem",
(uintmax_t)rman_get_start(sc->ipmi_io_res[0]),
device_get_name(device_get_parent(dev)));
sc->ipmi_dev = dev;
/*
* Setup an interrupt if we have an interrupt resource. We
* don't support GPE interrupts via _GPE yet.
*/
sc->ipmi_irq_rid = 0;
sc->ipmi_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
&sc->ipmi_irq_rid, RF_SHAREABLE | RF_ACTIVE);
/* Warn if _GPE exists. */
if (ACPI_SUCCESS(AcpiEvaluateObject(devh, "_GPE", NULL, NULL)))
device_printf(dev, "_GPE support not implemented\n");
/*
* We assume an alignment of 1 byte as currently the IPMI spec
* doesn't provide any way to determine the alignment via ACPI.
*/
switch (interface_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_probe, ipmi_acpi_probe),
DEVMETHOD(device_attach, ipmi_acpi_attach),
DEVMETHOD(device_detach, ipmi_detach),
{ 0, 0 }
};
static driver_t ipmi_acpi_driver = {
"ipmi",
ipmi_methods,
sizeof(struct ipmi_softc),
};
DRIVER_MODULE(ipmi_acpi, acpi, ipmi_acpi_driver, ipmi_devclass, 0, 0);
MODULE_DEPEND(ipmi_acpi, acpi, 1, 1, 1);
