153a374c1SSascha Wildner /*-
253a374c1SSascha Wildner * Copyright (c) 2006 IronPort Systems Inc. <ambrisko@ironport.com>
353a374c1SSascha Wildner * All rights reserved.
453a374c1SSascha Wildner *
553a374c1SSascha Wildner * Redistribution and use in source and binary forms, with or without
653a374c1SSascha Wildner * modification, are permitted provided that the following conditions
753a374c1SSascha Wildner * are met:
853a374c1SSascha Wildner * 1. Redistributions of source code must retain the above copyright
953a374c1SSascha Wildner * notice, this list of conditions and the following disclaimer.
1053a374c1SSascha Wildner * 2. Redistributions in binary form must reproduce the above copyright
1153a374c1SSascha Wildner * notice, this list of conditions and the following disclaimer in the
1253a374c1SSascha Wildner * documentation and/or other materials provided with the distribution.
1353a374c1SSascha Wildner *
1453a374c1SSascha Wildner * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
1553a374c1SSascha Wildner * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1653a374c1SSascha Wildner * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1753a374c1SSascha Wildner * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
1853a374c1SSascha Wildner * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1953a374c1SSascha Wildner * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2053a374c1SSascha Wildner * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2153a374c1SSascha Wildner * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2253a374c1SSascha Wildner * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2353a374c1SSascha Wildner * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2453a374c1SSascha Wildner * SUCH DAMAGE.
2553a374c1SSascha Wildner *
2653a374c1SSascha Wildner * $FreeBSD: head/sys/dev/ipmi/ipmi_isa.c 253813 2013-07-30 18:54:24Z sbruno $
2753a374c1SSascha Wildner */
2853a374c1SSascha Wildner
2953a374c1SSascha Wildner #include <sys/param.h>
3053a374c1SSascha Wildner #include <sys/systm.h>
3153a374c1SSascha Wildner #include <sys/bus.h>
3253a374c1SSascha Wildner #include <sys/condvar.h>
3353a374c1SSascha Wildner #include <sys/eventhandler.h>
3453a374c1SSascha Wildner #include <sys/kernel.h>
3553a374c1SSascha Wildner #include <sys/module.h>
3653a374c1SSascha Wildner #include <sys/rman.h>
3753a374c1SSascha Wildner #include <sys/conf.h>
3853a374c1SSascha Wildner
3953a374c1SSascha Wildner #include <bus/pci/pci_cfgreg.h>
4053a374c1SSascha Wildner #include <bus/pci/pcireg.h>
4153a374c1SSascha Wildner
4253a374c1SSascha Wildner #include <bus/isa/isavar.h>
4353a374c1SSascha Wildner
4453a374c1SSascha Wildner #ifdef LOCAL_MODULE
4553a374c1SSascha Wildner #include <ipmi.h>
4653a374c1SSascha Wildner #include <ipmivars.h>
4753a374c1SSascha Wildner #else
4853a374c1SSascha Wildner #include <sys/ipmi.h>
4953a374c1SSascha Wildner #include <dev/misc/ipmi/ipmivars.h>
5053a374c1SSascha Wildner #endif
5153a374c1SSascha Wildner
5253a374c1SSascha Wildner static void
ipmi_isa_identify(driver_t * driver,device_t parent)5353a374c1SSascha Wildner ipmi_isa_identify(driver_t *driver, device_t parent)
5453a374c1SSascha Wildner {
5553a374c1SSascha Wildner struct ipmi_get_info info;
5653a374c1SSascha Wildner uint32_t devid;
5753a374c1SSascha Wildner
5853a374c1SSascha Wildner if (ipmi_smbios_identify(&info) && info.iface_type != SSIF_MODE &&
5953a374c1SSascha Wildner device_find_child(parent, "ipmi", -1) == NULL) {
6053a374c1SSascha Wildner /*
6153a374c1SSascha Wildner * XXX: Hack alert. On some broken systems, the IPMI
6253a374c1SSascha Wildner * interface is described via SMBIOS, but the actual
6353a374c1SSascha Wildner * IO resource is in a PCI device BAR, so we have to let
6453a374c1SSascha Wildner * the PCI device attach ipmi instead. In that case don't
6553a374c1SSascha Wildner * create an isa ipmi device. For now we hardcode the list
6653a374c1SSascha Wildner * of bus, device, function tuples.
6753a374c1SSascha Wildner */
6853a374c1SSascha Wildner devid = pci_cfgregread(0, 4, 2, PCIR_DEVVENDOR, 4);
6953a374c1SSascha Wildner if (devid != 0xffffffff &&
7053a374c1SSascha Wildner ipmi_pci_match(devid & 0xffff, devid >> 16) != NULL)
7153a374c1SSascha Wildner return;
7253a374c1SSascha Wildner BUS_ADD_CHILD(parent, parent, 0, "ipmi", -1);
7353a374c1SSascha Wildner }
7453a374c1SSascha Wildner }
7553a374c1SSascha Wildner
7653a374c1SSascha Wildner static int
ipmi_isa_probe(device_t dev)7753a374c1SSascha Wildner ipmi_isa_probe(device_t dev)
7853a374c1SSascha Wildner {
7953a374c1SSascha Wildner
8053a374c1SSascha Wildner /*
8153a374c1SSascha Wildner * Give other drivers precedence. Unfortunately, this doesn't
8253a374c1SSascha Wildner * work if we have an SMBIOS table that duplicates a PCI device
8353a374c1SSascha Wildner * that's later on the bus than the PCI-ISA bridge.
8453a374c1SSascha Wildner */
8553a374c1SSascha Wildner if (ipmi_attached)
8653a374c1SSascha Wildner return (ENXIO);
8753a374c1SSascha Wildner
8853a374c1SSascha Wildner /* Skip any PNP devices. */
8953a374c1SSascha Wildner if (isa_get_logicalid(dev) != 0)
9053a374c1SSascha Wildner return (ENXIO);
9153a374c1SSascha Wildner
9253a374c1SSascha Wildner device_set_desc(dev, "IPMI System Interface");
9353a374c1SSascha Wildner return (BUS_PROBE_DEFAULT);
9453a374c1SSascha Wildner }
9553a374c1SSascha Wildner
9653a374c1SSascha Wildner static int
ipmi_hint_identify(device_t dev,struct ipmi_get_info * info)9753a374c1SSascha Wildner ipmi_hint_identify(device_t dev, struct ipmi_get_info *info)
9853a374c1SSascha Wildner {
9953a374c1SSascha Wildner const char *mode, *name;
10053a374c1SSascha Wildner int i, unit, val;
10153a374c1SSascha Wildner
10253a374c1SSascha Wildner /* We require at least a "mode" hint. */
10353a374c1SSascha Wildner name = device_get_name(dev);
10453a374c1SSascha Wildner unit = device_get_unit(dev);
10553a374c1SSascha Wildner if (resource_string_value(name, unit, "mode", &mode) != 0)
10653a374c1SSascha Wildner return (0);
10753a374c1SSascha Wildner
10853a374c1SSascha Wildner /* Set the mode and default I/O resources for each mode. */
10953a374c1SSascha Wildner bzero(info, sizeof(struct ipmi_get_info));
11053a374c1SSascha Wildner if (strcasecmp(mode, "KCS") == 0) {
11153a374c1SSascha Wildner info->iface_type = KCS_MODE;
11253a374c1SSascha Wildner info->address = 0xca2;
11353a374c1SSascha Wildner info->io_mode = 1;
11453a374c1SSascha Wildner info->offset = 1;
11553a374c1SSascha Wildner } else if (strcasecmp(mode, "SMIC") == 0) {
11653a374c1SSascha Wildner info->iface_type = SMIC_MODE;
11753a374c1SSascha Wildner info->address = 0xca9;
11853a374c1SSascha Wildner info->io_mode = 1;
11953a374c1SSascha Wildner info->offset = 1;
12053a374c1SSascha Wildner } else if (strcasecmp(mode, "BT") == 0) {
12153a374c1SSascha Wildner info->iface_type = BT_MODE;
12253a374c1SSascha Wildner info->address = 0xe4;
12353a374c1SSascha Wildner info->io_mode = 1;
12453a374c1SSascha Wildner info->offset = 1;
12553a374c1SSascha Wildner } else {
12653a374c1SSascha Wildner device_printf(dev, "Invalid mode %s\n", mode);
12753a374c1SSascha Wildner return (0);
12853a374c1SSascha Wildner }
12953a374c1SSascha Wildner
13053a374c1SSascha Wildner /*
13153a374c1SSascha Wildner * Kill any resources that isahint.c might have setup for us
13253a374c1SSascha Wildner * since it will conflict with how we do resources.
13353a374c1SSascha Wildner */
13453a374c1SSascha Wildner for (i = 0; i < 2; i++) {
13553a374c1SSascha Wildner bus_delete_resource(dev, SYS_RES_MEMORY, i);
13653a374c1SSascha Wildner bus_delete_resource(dev, SYS_RES_IOPORT, i);
13753a374c1SSascha Wildner }
13853a374c1SSascha Wildner
139*6a8bb22dSSascha Wildner /* Allow the I/O address to be overridden via hints. */
14053a374c1SSascha Wildner if (resource_int_value(name, unit, "port", &val) == 0 && val != 0) {
14153a374c1SSascha Wildner info->address = val;
14253a374c1SSascha Wildner info->io_mode = 1;
14353a374c1SSascha Wildner } else if (resource_int_value(name, unit, "maddr", &val) == 0 &&
14453a374c1SSascha Wildner val != 0) {
14553a374c1SSascha Wildner info->address = val;
14653a374c1SSascha Wildner info->io_mode = 0;
14753a374c1SSascha Wildner }
14853a374c1SSascha Wildner
149*6a8bb22dSSascha Wildner /* Allow the spacing to be overridden. */
15053a374c1SSascha Wildner if (resource_int_value(name, unit, "spacing", &val) == 0) {
15153a374c1SSascha Wildner switch (val) {
15253a374c1SSascha Wildner case 8:
15353a374c1SSascha Wildner info->offset = 1;
15453a374c1SSascha Wildner break;
15553a374c1SSascha Wildner case 16:
15653a374c1SSascha Wildner info->offset = 2;
15753a374c1SSascha Wildner break;
15853a374c1SSascha Wildner case 32:
15953a374c1SSascha Wildner info->offset = 4;
16053a374c1SSascha Wildner break;
16153a374c1SSascha Wildner default:
16253a374c1SSascha Wildner device_printf(dev, "Invalid register spacing\n");
16353a374c1SSascha Wildner return (0);
16453a374c1SSascha Wildner }
16553a374c1SSascha Wildner }
16653a374c1SSascha Wildner return (1);
16753a374c1SSascha Wildner }
16853a374c1SSascha Wildner
16953a374c1SSascha Wildner static int
ipmi_isa_attach(device_t dev)17053a374c1SSascha Wildner ipmi_isa_attach(device_t dev)
17153a374c1SSascha Wildner {
17253a374c1SSascha Wildner struct ipmi_softc *sc = device_get_softc(dev);
17353a374c1SSascha Wildner struct ipmi_get_info info;
17453a374c1SSascha Wildner const char *mode;
17553a374c1SSascha Wildner int count, error, i, type;
17653a374c1SSascha Wildner
17753a374c1SSascha Wildner /*
17853a374c1SSascha Wildner * Pull info out of the SMBIOS table. If that doesn't work, use
17953a374c1SSascha Wildner * hints to enumerate a device.
18053a374c1SSascha Wildner */
18153a374c1SSascha Wildner if (!ipmi_smbios_identify(&info) &&
18253a374c1SSascha Wildner !ipmi_hint_identify(dev, &info))
18353a374c1SSascha Wildner return (ENXIO);
18453a374c1SSascha Wildner
18553a374c1SSascha Wildner switch (info.iface_type) {
18653a374c1SSascha Wildner case KCS_MODE:
18753a374c1SSascha Wildner count = 2;
18853a374c1SSascha Wildner mode = "KCS";
18953a374c1SSascha Wildner break;
19053a374c1SSascha Wildner case SMIC_MODE:
19153a374c1SSascha Wildner count = 3;
19253a374c1SSascha Wildner mode = "SMIC";
19353a374c1SSascha Wildner break;
19453a374c1SSascha Wildner case BT_MODE:
19553a374c1SSascha Wildner device_printf(dev, "BT mode is unsupported\n");
19653a374c1SSascha Wildner return (ENXIO);
19753a374c1SSascha Wildner default:
19853a374c1SSascha Wildner return (ENXIO);
19953a374c1SSascha Wildner }
20053a374c1SSascha Wildner error = 0;
20153a374c1SSascha Wildner sc->ipmi_dev = dev;
20253a374c1SSascha Wildner
20353a374c1SSascha Wildner device_printf(dev, "%s mode found at %s 0x%jx alignment 0x%x on %s\n",
20453a374c1SSascha Wildner mode, info.io_mode ? "io" : "mem",
20553a374c1SSascha Wildner (uintmax_t)info.address, info.offset,
20653a374c1SSascha Wildner device_get_name(device_get_parent(dev)));
20753a374c1SSascha Wildner if (info.io_mode)
20853a374c1SSascha Wildner type = SYS_RES_IOPORT;
20953a374c1SSascha Wildner else
21053a374c1SSascha Wildner type = SYS_RES_MEMORY;
21153a374c1SSascha Wildner
21253a374c1SSascha Wildner sc->ipmi_io_type = type;
21353a374c1SSascha Wildner sc->ipmi_io_spacing = info.offset;
21453a374c1SSascha Wildner if (info.offset == 1) {
21553a374c1SSascha Wildner sc->ipmi_io_rid = 0;
21653a374c1SSascha Wildner sc->ipmi_io_res[0] = bus_alloc_resource(dev, type,
21753a374c1SSascha Wildner &sc->ipmi_io_rid, info.address, info.address + count - 1,
21853a374c1SSascha Wildner count, RF_ACTIVE);
21953a374c1SSascha Wildner if (sc->ipmi_io_res[0] == NULL) {
22053a374c1SSascha Wildner device_printf(dev, "couldn't configure I/O resource\n");
22153a374c1SSascha Wildner return (ENXIO);
22253a374c1SSascha Wildner }
22353a374c1SSascha Wildner } else {
22453a374c1SSascha Wildner for (i = 0; i < count; i++) {
22553a374c1SSascha Wildner sc->ipmi_io_rid = i;
22653a374c1SSascha Wildner sc->ipmi_io_res[i] = bus_alloc_resource(dev, type,
22753a374c1SSascha Wildner &sc->ipmi_io_rid, info.address + i * info.offset,
22853a374c1SSascha Wildner info.address + i * info.offset, 1, RF_ACTIVE);
22953a374c1SSascha Wildner if (sc->ipmi_io_res[i] == NULL) {
23053a374c1SSascha Wildner device_printf(dev,
23153a374c1SSascha Wildner "couldn't configure I/O resource\n");
23253a374c1SSascha Wildner error = ENXIO;
23353a374c1SSascha Wildner sc->ipmi_io_rid = 0;
23453a374c1SSascha Wildner goto bad;
23553a374c1SSascha Wildner }
23653a374c1SSascha Wildner }
23753a374c1SSascha Wildner sc->ipmi_io_rid = 0;
23853a374c1SSascha Wildner }
23953a374c1SSascha Wildner
24053a374c1SSascha Wildner if (info.irq != 0) {
24153a374c1SSascha Wildner sc->ipmi_irq_rid = 0;
24253a374c1SSascha Wildner sc->ipmi_irq_res = bus_alloc_resource(dev, SYS_RES_IRQ,
24353a374c1SSascha Wildner &sc->ipmi_irq_rid, info.irq, info.irq, 1,
24453a374c1SSascha Wildner RF_SHAREABLE | RF_ACTIVE);
24553a374c1SSascha Wildner }
24653a374c1SSascha Wildner
24753a374c1SSascha Wildner switch (info.iface_type) {
24853a374c1SSascha Wildner case KCS_MODE:
24953a374c1SSascha Wildner error = ipmi_kcs_attach(sc);
25053a374c1SSascha Wildner if (error)
25153a374c1SSascha Wildner goto bad;
25253a374c1SSascha Wildner break;
25353a374c1SSascha Wildner case SMIC_MODE:
25453a374c1SSascha Wildner error = ipmi_smic_attach(sc);
25553a374c1SSascha Wildner if (error)
25653a374c1SSascha Wildner goto bad;
25753a374c1SSascha Wildner break;
25853a374c1SSascha Wildner }
25953a374c1SSascha Wildner
26053a374c1SSascha Wildner error = ipmi_attach(dev);
26153a374c1SSascha Wildner if (error)
26253a374c1SSascha Wildner goto bad;
26353a374c1SSascha Wildner
26453a374c1SSascha Wildner return (0);
26553a374c1SSascha Wildner bad:
26653a374c1SSascha Wildner ipmi_release_resources(dev);
26753a374c1SSascha Wildner return (error);
26853a374c1SSascha Wildner }
26953a374c1SSascha Wildner
27053a374c1SSascha Wildner static device_method_t ipmi_methods[] = {
27153a374c1SSascha Wildner /* Device interface */
27253a374c1SSascha Wildner DEVMETHOD(device_identify, ipmi_isa_identify),
27353a374c1SSascha Wildner DEVMETHOD(device_probe, ipmi_isa_probe),
27453a374c1SSascha Wildner DEVMETHOD(device_attach, ipmi_isa_attach),
27553a374c1SSascha Wildner DEVMETHOD(device_detach, ipmi_detach),
27653a374c1SSascha Wildner { 0, 0 }
27753a374c1SSascha Wildner };
27853a374c1SSascha Wildner
27953a374c1SSascha Wildner static driver_t ipmi_isa_driver = {
28053a374c1SSascha Wildner "ipmi",
28153a374c1SSascha Wildner ipmi_methods,
28253a374c1SSascha Wildner sizeof(struct ipmi_softc),
28353a374c1SSascha Wildner };
28453a374c1SSascha Wildner
285aa6ac96eSSascha Wildner DRIVER_MODULE(ipmi_isa, isa, ipmi_isa_driver, ipmi_devclass, NULL, NULL);
286