diff options
Diffstat (limited to 'sys/dev/ipmi/ipmi_isa.c')
| -rw-r--r-- | sys/dev/ipmi/ipmi_isa.c | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/sys/dev/ipmi/ipmi_isa.c b/sys/dev/ipmi/ipmi_isa.c new file mode 100644 index 000000000000..a77081ad3908 --- /dev/null +++ b/sys/dev/ipmi/ipmi_isa.c @@ -0,0 +1,209 @@ +/*- + * 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); |