212 lines
5.6 KiB
C
212 lines
5.6 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2006 IronPort Systems Inc. <ambrisko@ironport.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/condvar.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/rman.h>
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#include <sys/selinfo.h>
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#include <contrib/dev/acpica/include/acpi.h>
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#include <dev/acpica/acpivar.h>
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/* Hooks for the ACPI CA debugging infrastructure */
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#define _COMPONENT ACPI_BUTTON
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ACPI_MODULE_NAME("IPMI")
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#ifdef LOCAL_MODULE
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#include <ipmi.h>
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#include <ipmivars.h>
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#else
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#include <sys/ipmi.h>
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#include <dev/ipmi/ipmivars.h>
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#endif
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static int ipmi_acpi_probe(device_t);
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static int ipmi_acpi_attach(device_t);
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int
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ipmi_acpi_probe(device_t dev)
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{
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static char *ipmi_ids[] = {"IPI0001", NULL};
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int rv;
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if (ipmi_attached)
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return (EBUSY);
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if (acpi_disabled("ipmi"))
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return (ENXIO);
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rv = ACPI_ID_PROBE(device_get_parent(dev), dev, ipmi_ids, NULL);
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if (rv <= 0)
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device_set_desc(dev, "IPMI System Interface");
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return (rv);
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}
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static int
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ipmi_acpi_attach(device_t dev)
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{
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ACPI_HANDLE devh;
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const char *mode;
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struct ipmi_softc *sc = device_get_softc(dev);
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int count, error, i, type;
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int interface_type = 0, interface_version = 0;
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error = 0;
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devh = acpi_get_handle(dev);
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if (ACPI_FAILURE(acpi_GetInteger(devh, "_IFT", &interface_type)))
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return (ENXIO);
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if (ACPI_FAILURE(acpi_GetInteger(devh, "_SRV", &interface_version)))
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return (ENXIO);
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switch (interface_type) {
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case KCS_MODE:
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count = IPMI_IF_KCS_NRES;
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mode = "KCS";
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break;
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case SMIC_MODE:
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count = IPMI_IF_SMIC_NRES;
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mode = "SMIC";
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break;
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case BT_MODE:
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count = IPMI_IF_BT_NRES;
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mode = "BT";
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break;
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case SSIF_MODE:
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device_printf(dev, "SSIF interface not supported on ACPI\n");
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return (0);
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default:
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return (ENXIO);
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}
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if (bus_get_resource(dev, SYS_RES_IOPORT, 0, NULL, NULL) == 0)
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type = SYS_RES_IOPORT;
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else if (bus_get_resource(dev, SYS_RES_MEMORY, 0, NULL, NULL) == 0)
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type = SYS_RES_MEMORY;
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else {
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device_printf(dev, "unknown resource type\n");
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return (ENXIO);
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}
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sc->ipmi_io_rid = 0;
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sc->ipmi_io_res[0] = bus_alloc_resource_any(dev, type,
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&sc->ipmi_io_rid, RF_ACTIVE);
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sc->ipmi_io_type = type;
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sc->ipmi_io_spacing = 1;
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if (sc->ipmi_io_res[0] == NULL) {
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device_printf(dev, "couldn't configure I/O resource\n");
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return (ENXIO);
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}
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/* If we have multiple resources, allocate up to MAX_RES. */
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for (i = 1; i < MAX_RES; i++) {
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sc->ipmi_io_rid = i;
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sc->ipmi_io_res[i] = bus_alloc_resource_any(dev, type,
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&sc->ipmi_io_rid, RF_ACTIVE);
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if (sc->ipmi_io_res[i] == NULL)
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break;
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}
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sc->ipmi_io_rid = 0;
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/* If we have multiple resources, make sure we have enough of them. */
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if (sc->ipmi_io_res[1] != NULL && sc->ipmi_io_res[count - 1] == NULL) {
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device_printf(dev, "too few I/O resources\n");
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error = ENXIO;
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goto bad;
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}
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device_printf(dev, "%s mode found at %s 0x%jx on %s\n",
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mode, type == SYS_RES_IOPORT ? "io" : "mem",
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(uintmax_t)rman_get_start(sc->ipmi_io_res[0]),
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device_get_name(device_get_parent(dev)));
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sc->ipmi_dev = dev;
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/*
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* Setup an interrupt if we have an interrupt resource. We
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* don't support GPE interrupts via _GPE yet.
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*/
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sc->ipmi_irq_rid = 0;
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sc->ipmi_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
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&sc->ipmi_irq_rid, RF_SHAREABLE | RF_ACTIVE);
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/* Warn if _GPE exists. */
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if (ACPI_SUCCESS(AcpiEvaluateObject(devh, "_GPE", NULL, NULL)))
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device_printf(dev, "_GPE support not implemented\n");
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/*
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* We assume an alignment of 1 byte as currently the IPMI spec
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* doesn't provide any way to determine the alignment via ACPI.
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*/
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error = ENXIO;
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switch (interface_type) {
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case KCS_MODE:
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error = ipmi_kcs_attach(sc);
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break;
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case SMIC_MODE:
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error = ipmi_smic_attach(sc);
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break;
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case BT_MODE:
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error = ipmi_bt_attach(sc);
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break;
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}
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if (error)
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goto bad;
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error = ipmi_attach(dev);
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if (error)
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goto bad;
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return (0);
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bad:
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ipmi_release_resources(dev);
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return (error);
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}
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static device_method_t ipmi_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, ipmi_acpi_probe),
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DEVMETHOD(device_attach, ipmi_acpi_attach),
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DEVMETHOD(device_detach, ipmi_detach),
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{ 0, 0 }
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};
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static driver_t ipmi_acpi_driver = {
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"ipmi",
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ipmi_methods,
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sizeof(struct ipmi_softc),
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};
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DRIVER_MODULE(ipmi_acpi, acpi, ipmi_acpi_driver, 0, 0);
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MODULE_DEPEND(ipmi_acpi, acpi, 1, 1, 1);
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