diff options
Diffstat (limited to 'sys/dev/ipmi/ipmi_smbus.c')
| -rw-r--r-- | sys/dev/ipmi/ipmi_smbus.c | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/sys/dev/ipmi/ipmi_smbus.c b/sys/dev/ipmi/ipmi_smbus.c new file mode 100644 index 0000000..3798a62 --- /dev/null +++ b/sys/dev/ipmi/ipmi_smbus.c @@ -0,0 +1,131 @@ +/*- + * 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 <dev/smbus/smbconf.h> +#include <dev/smbus/smbus.h> +#include <dev/smbus/smb.h> + +#include "smbus_if.h" + +#ifdef LOCAL_MODULE +#include <ipmivars.h> +#else +#include <dev/ipmi/ipmivars.h> +#endif + +static void ipmi_smbus_identify(driver_t *driver, device_t parent); +static int ipmi_smbus_probe(device_t dev); +static int ipmi_smbus_attach(device_t dev); + +static void +ipmi_smbus_identify(driver_t *driver, device_t parent) +{ + struct ipmi_get_info info; + + if (ipmi_smbios_identify(&info) && info.iface_type == SSIF_MODE && + device_find_child(parent, "ipmi", -1) == NULL) + BUS_ADD_CHILD(parent, 0, "ipmi", -1); +} + +static int +ipmi_smbus_probe(device_t dev) +{ + + device_set_desc(dev, "IPMI System Interface"); + return (BUS_PROBE_DEFAULT); +} + +static int +ipmi_smbus_attach(device_t dev) +{ + struct ipmi_softc *sc = device_get_softc(dev); + struct ipmi_get_info info; + int error; + + /* This should never fail. */ + if (!ipmi_smbios_identify(&info)) + return (ENXIO); + + if (info.iface_type != SSIF_MODE) { + device_printf(dev, "No SSIF IPMI interface found\n"); + return (ENXIO); + } + + sc->ipmi_dev = dev; + + 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); + } + + device_printf(dev, "SSIF mode found at address 0x%llx on %s\n", + (long long)info.address, device_get_name(device_get_parent(dev))); + error = ipmi_ssif_attach(sc, device_get_parent(dev), info.address); + if (error) + goto bad; + + 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_smbus_identify), + DEVMETHOD(device_probe, ipmi_smbus_probe), + DEVMETHOD(device_attach, ipmi_smbus_attach), + DEVMETHOD(device_detach, ipmi_detach), + { 0, 0 } +}; + +static driver_t ipmi_smbus_driver = { + "ipmi", + ipmi_methods, + sizeof(struct ipmi_softc) +}; + +DRIVER_MODULE(ipmi_smbus, smbus, ipmi_smbus_driver, ipmi_devclass, 0, 0); +MODULE_DEPEND(ipmi_smbus, smbus, SMBUS_MINVER, SMBUS_PREFVER, SMBUS_MAXVER); |
