1162562Sjhb/*- 2162562Sjhb * Copyright (c) 2006 IronPort Systems Inc. <ambrisko@ironport.com> 3162562Sjhb * All rights reserved. 4162562Sjhb * 5162562Sjhb * Redistribution and use in source and binary forms, with or without 6162562Sjhb * modification, are permitted provided that the following conditions 7162562Sjhb * are met: 8162562Sjhb * 1. Redistributions of source code must retain the above copyright 9162562Sjhb * notice, this list of conditions and the following disclaimer. 10162562Sjhb * 2. Redistributions in binary form must reproduce the above copyright 11162562Sjhb * notice, this list of conditions and the following disclaimer in the 12162562Sjhb * documentation and/or other materials provided with the distribution. 13162562Sjhb * 14162562Sjhb * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15162562Sjhb * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16162562Sjhb * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17162562Sjhb * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18162562Sjhb * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19162562Sjhb * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20162562Sjhb * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21162562Sjhb * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22162562Sjhb * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23162562Sjhb * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24162562Sjhb * SUCH DAMAGE. 25162562Sjhb */ 26162562Sjhb 27162562Sjhb#include <sys/cdefs.h> 28162562Sjhb__FBSDID("$FreeBSD$"); 29162562Sjhb 30162562Sjhb#include <sys/param.h> 31162562Sjhb#include <sys/systm.h> 32162562Sjhb#include <sys/bus.h> 33162562Sjhb#include <sys/condvar.h> 34162562Sjhb#include <sys/kernel.h> 35162562Sjhb#include <sys/module.h> 36162562Sjhb#include <sys/rman.h> 37162562Sjhb#include <sys/selinfo.h> 38162562Sjhb 39193530Sjkim#include <contrib/dev/acpica/include/acpi.h> 40193530Sjkim 41162562Sjhb#include <dev/acpica/acpivar.h> 42162562Sjhb 43162562Sjhb/* Hooks for the ACPI CA debugging infrastructure */ 44162562Sjhb#define _COMPONENT ACPI_BUTTON 45162562SjhbACPI_MODULE_NAME("IPMI") 46162562Sjhb 47162562Sjhb#ifdef LOCAL_MODULE 48162562Sjhb#include <ipmi.h> 49162562Sjhb#include <ipmivars.h> 50162562Sjhb#else 51162562Sjhb#include <sys/ipmi.h> 52162562Sjhb#include <dev/ipmi/ipmivars.h> 53162562Sjhb#endif 54162562Sjhb 55162562Sjhbstatic int ipmi_acpi_probe(device_t); 56162562Sjhbstatic int ipmi_acpi_attach(device_t); 57162562Sjhb 58162562Sjhbint 59162562Sjhbipmi_acpi_probe(device_t dev) 60162562Sjhb{ 61162562Sjhb static char *ipmi_ids[] = {"IPI0001", NULL}; 62162562Sjhb 63162562Sjhb if (ipmi_attached) 64162562Sjhb return (EBUSY); 65162562Sjhb 66162562Sjhb if (acpi_disabled("ipmi") || 67162562Sjhb ACPI_ID_PROBE(device_get_parent(dev), dev, ipmi_ids) == NULL) 68162562Sjhb return (ENXIO); 69162562Sjhb 70162562Sjhb device_set_desc(dev, "IPMI System Interface"); 71162562Sjhb 72162562Sjhb return (0); 73162562Sjhb} 74162562Sjhb 75162562Sjhbstatic int 76162562Sjhbipmi_acpi_attach(device_t dev) 77162562Sjhb{ 78162562Sjhb ACPI_HANDLE devh; 79162562Sjhb const char *mode; 80162562Sjhb struct ipmi_get_info info; 81162562Sjhb struct ipmi_softc *sc = device_get_softc(dev); 82162562Sjhb int count, error, flags, i, type; 83162562Sjhb int interface_type = 0, interface_version = 0; 84162562Sjhb 85162562Sjhb error = 0; 86162562Sjhb devh = acpi_get_handle(dev); 87162562Sjhb if (ACPI_FAILURE(acpi_GetInteger(devh, "_IFT", &interface_type))) 88162562Sjhb return (ENXIO); 89162562Sjhb 90162562Sjhb if (ACPI_FAILURE(acpi_GetInteger(devh, "_SRV", &interface_version))) 91162562Sjhb return (ENXIO); 92162562Sjhb 93162562Sjhb switch (interface_type) { 94162562Sjhb case KCS_MODE: 95162562Sjhb count = 2; 96162562Sjhb mode = "KCS"; 97162562Sjhb break; 98162562Sjhb case SMIC_MODE: 99162562Sjhb count = 3; 100162562Sjhb mode = "SMIC"; 101162562Sjhb break; 102162562Sjhb case BT_MODE: 103162562Sjhb device_printf(dev, "BT interface not supported\n"); 104162562Sjhb return (ENXIO); 105162562Sjhb case SSIF_MODE: 106162562Sjhb if (ACPI_FAILURE(acpi_GetInteger(devh, "_ADR", &flags))) 107162562Sjhb return (ENXIO); 108188078Sjhb info.address = flags; 109162562Sjhb device_printf(dev, "SSIF interface not supported on ACPI\n"); 110162562Sjhb return (0); 111162562Sjhb default: 112162562Sjhb return (ENXIO); 113162562Sjhb } 114162562Sjhb 115162562Sjhb if (bus_get_resource(dev, SYS_RES_IOPORT, 0, NULL, NULL) == 0) 116162562Sjhb type = SYS_RES_IOPORT; 117162562Sjhb else if (bus_get_resource(dev, SYS_RES_MEMORY, 0, NULL, NULL) == 0) 118162562Sjhb type = SYS_RES_MEMORY; 119162562Sjhb else { 120162562Sjhb device_printf(dev, "unknown resource type\n"); 121162562Sjhb return (ENXIO); 122162562Sjhb } 123162562Sjhb 124162562Sjhb sc->ipmi_io_rid = 0; 125162562Sjhb sc->ipmi_io_res[0] = bus_alloc_resource_any(dev, type, 126162562Sjhb &sc->ipmi_io_rid, RF_ACTIVE); 127162562Sjhb sc->ipmi_io_type = type; 128162562Sjhb sc->ipmi_io_spacing = 1; 129162562Sjhb if (sc->ipmi_io_res[0] == NULL) { 130162562Sjhb device_printf(dev, "couldn't configure I/O resource\n"); 131162562Sjhb return (ENXIO); 132162562Sjhb } 133162562Sjhb 134162562Sjhb /* If we have multiple resources, allocate up to MAX_RES. */ 135162562Sjhb for (i = 1; i < MAX_RES; i++) { 136162562Sjhb sc->ipmi_io_rid = i; 137162562Sjhb sc->ipmi_io_res[i] = bus_alloc_resource_any(dev, type, 138162562Sjhb &sc->ipmi_io_rid, RF_ACTIVE); 139162562Sjhb if (sc->ipmi_io_res[i] == NULL) 140162562Sjhb break; 141162562Sjhb } 142162562Sjhb sc->ipmi_io_rid = 0; 143162562Sjhb 144162562Sjhb /* If we have multiple resources, make sure we have enough of them. */ 145162562Sjhb if (sc->ipmi_io_res[1] != NULL && sc->ipmi_io_res[count - 1] == NULL) { 146162562Sjhb device_printf(dev, "too few I/O resources\n"); 147162562Sjhb error = ENXIO; 148162562Sjhb goto bad; 149162562Sjhb } 150162562Sjhb 151162562Sjhb device_printf(dev, "%s mode found at %s 0x%jx on %s\n", 152162562Sjhb mode, type == SYS_RES_IOPORT ? "io" : "mem", 153162562Sjhb (uintmax_t)rman_get_start(sc->ipmi_io_res[0]), 154162562Sjhb device_get_name(device_get_parent(dev))); 155162562Sjhb 156162562Sjhb sc->ipmi_dev = dev; 157162562Sjhb 158162562Sjhb /* 159162562Sjhb * Setup an interrupt if we have an interrupt resource. We 160162562Sjhb * don't support GPE interrupts via _GPE yet. 161162562Sjhb */ 162162562Sjhb sc->ipmi_irq_rid = 0; 163162562Sjhb sc->ipmi_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, 164162562Sjhb &sc->ipmi_irq_rid, RF_SHAREABLE | RF_ACTIVE); 165162562Sjhb 166162562Sjhb /* Warn if _GPE exists. */ 167162562Sjhb if (ACPI_SUCCESS(AcpiEvaluateObject(devh, "_GPE", NULL, NULL))) 168162562Sjhb device_printf(dev, "_GPE support not implemented\n"); 169162562Sjhb 170162562Sjhb /* 171162562Sjhb * We assume an alignment of 1 byte as currently the IPMI spec 172162562Sjhb * doesn't provide any way to determine the alignment via ACPI. 173162562Sjhb */ 174162562Sjhb switch (interface_type) { 175162562Sjhb case KCS_MODE: 176162562Sjhb error = ipmi_kcs_attach(sc); 177162562Sjhb if (error) 178162562Sjhb goto bad; 179162562Sjhb break; 180162562Sjhb case SMIC_MODE: 181162562Sjhb error = ipmi_smic_attach(sc); 182162562Sjhb if (error) 183162562Sjhb goto bad; 184162562Sjhb break; 185162562Sjhb } 186162562Sjhb error = ipmi_attach(dev); 187162562Sjhb if (error) 188162562Sjhb goto bad; 189162562Sjhb 190162562Sjhb return (0); 191162562Sjhbbad: 192162562Sjhb ipmi_release_resources(dev); 193162562Sjhb return (error); 194162562Sjhb} 195162562Sjhb 196162562Sjhbstatic device_method_t ipmi_methods[] = { 197162562Sjhb /* Device interface */ 198162562Sjhb DEVMETHOD(device_probe, ipmi_acpi_probe), 199162562Sjhb DEVMETHOD(device_attach, ipmi_acpi_attach), 200162562Sjhb DEVMETHOD(device_detach, ipmi_detach), 201162562Sjhb { 0, 0 } 202162562Sjhb}; 203162562Sjhb 204162562Sjhbstatic driver_t ipmi_acpi_driver = { 205162562Sjhb "ipmi", 206162562Sjhb ipmi_methods, 207162562Sjhb sizeof(struct ipmi_softc), 208162562Sjhb}; 209162562Sjhb 210162562SjhbDRIVER_MODULE(ipmi_acpi, acpi, ipmi_acpi_driver, ipmi_devclass, 0, 0); 211162562SjhbMODULE_DEPEND(ipmi_acpi, acpi, 1, 1, 1); 212