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Add the 'vpd' and 'smbios' drivers. The 'smbios' driver is just a

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stub right now.
This commit is contained in:
mdodd 2003-03-24 19:32:57 +00:00
parent 639a37daa0
commit ea0ea0c401
3 changed files with 561 additions and 0 deletions
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2
sys/conf/files.i386
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@ -194,6 +194,8 @@ i386/bios/mca_machdep.c optional mca
i386/bios/smapi.c optional smapi isa
i386/bios/smapi_isa.c optional smapi isa
i386/bios/smapi_bios.S optional smapi isa
i386/bios/smbios.c optional smbios
i386/bios/vpd.c optional vpd
i386/i386/atomic.c standard \
compile-with "${CC} -c ${CFLAGS} ${DEFINED_PROF:S/^$/-fomit-frame-pointer/} ${.IMPSRC}"
i386/i386/autoconf.c standard

258
sys/i386/bios/smbios.c Normal file
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@ -0,0 +1,258 @@
/*-
* Copyright (c) 2003 Matthew N. Dodd <winter@jurai.net>
* 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.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <machine/md_var.h>
#include <machine/pc/bios.h>
/*
* SMBIOS Entry Point Structure
*/
struct smbios_eps {
u_int8_t Anchor[4]; /* '_SM_' */
u_int8_t Checksum;
u_int8_t Length;
u_int8_t SMBIOS_Major;
u_int8_t SMBIOS_Minor;
u_int8_t Max_Size;
u_int8_t Revision;
u_int8_t Formatted_Area;
u_int8_t Intermediate_Anchor[5]; /* '_DMI_' */
u_int8_t Intermediate_Checksum;
u_int16_t Structure_Table_Length;
u_int32_t Structure_Table_Address;
u_int16_t Structure_Count;
u_int8_t SMBIOS_BCD_Revision;
} __packed;
struct smbios_softc {
device_t dev;
struct resource * res;
int rid;
struct smbios_eps * eps;
};
#define SMBIOS_START 0xf0000
#define SMBIOS_STEP 0x10
#define SMBIOS_OFF 0
#define SMBIOS_LEN 4
#define SMBIOS_SIG "_SM_"
#define RES2EPS(res) ((struct smbios_eps *)rman_get_virtual(res))
#define ADDR2EPS(addr) ((struct smbios_eps *)BIOS_PADDRTOVADDR(addr))
static devclass_t smbios_devclass;
static void smbios_identify (driver_t *, device_t);
static int smbios_probe (device_t);
static int smbios_attach (device_t);
static int smbios_detach (device_t);
static int smbios_modevent (module_t, int, void *);
static int smbios_cksum (struct smbios_eps *);
static void
smbios_identify (driver_t *driver, device_t parent)
{
device_t child;
u_int32_t addr;
int length;
int rid;
if (!device_is_alive(parent))
return;
addr = bios_sigsearch(SMBIOS_START, SMBIOS_SIG, SMBIOS_LEN,
SMBIOS_STEP, SMBIOS_OFF);
if (addr != 0) {
rid = 0;
length = ADDR2EPS(addr)->Length;
child = BUS_ADD_CHILD(parent, 0, "smbios", -1);
device_set_driver(child, driver);
bus_set_resource(child, SYS_RES_MEMORY, rid, addr, length);
device_set_desc(child, "System Management BIOS");
}
return;
}
static int
smbios_probe (device_t dev)
{
struct resource *res;
int rid;
int error;
error = 0;
rid = 0;
res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid,
0ul, ~0ul, 1, RF_ACTIVE);
if (res == NULL) {
device_printf(dev, "Unable to allocate memory resource.\n");
error = ENOMEM;
goto bad;
}
if (smbios_cksum(RES2EPS(res))) {
device_printf(dev, "SMBIOS checksum failed.\n");
error = ENXIO;
goto bad;
}
bad:
if (res)
bus_release_resource(dev, SYS_RES_MEMORY, rid, res);
return (error);
}
static int
smbios_attach (device_t dev)
{
struct smbios_softc *sc;
int error;
sc = device_get_softc(dev);
error = 0;
sc->dev = dev;
sc->rid = 0;
sc->res = bus_alloc_resource(dev, SYS_RES_MEMORY, &sc->rid,
0ul, ~0ul, 1, RF_ACTIVE);
if (sc->res == NULL) {
device_printf(dev, "Unable to allocate memory resource.\n");
error = ENOMEM;
goto bad;
}
sc->eps = RES2EPS(sc->res);
device_printf(dev, "Version: %d.%02d",
sc->eps->SMBIOS_Major, sc->eps->SMBIOS_Minor);
if (bcd2bin(sc->eps->SMBIOS_BCD_Revision))
printf(", Revision: %d.%02d",
bcd2bin(sc->eps->SMBIOS_BCD_Revision >> 4),
bcd2bin(sc->eps->SMBIOS_BCD_Revision & 0x0f));
printf("\n");
return (0);
bad:
if (sc->res)
bus_release_resource(dev, SYS_RES_MEMORY, sc->rid, sc->res);
return (error);
}
static int
smbios_detach (device_t dev)
{
struct smbios_softc *sc;
sc = device_get_softc(dev);
if (sc->res)
bus_release_resource(dev, SYS_RES_MEMORY, sc->rid, sc->res);
return (0);
}
static int
smbios_modevent (mod, what, arg)
module_t mod;
int what;
void * arg;
{
device_t * devs;
int count;
int i;
switch (what) {
case MOD_LOAD:
break;
case MOD_UNLOAD:
devclass_get_devices(smbios_devclass, &devs, &count);
for (i = 0; i < count; i++) {
device_delete_child(device_get_parent(devs[i]), devs[i]);
}
break;
default:
break;
}
return (0);
}
static device_method_t smbios_methods[] = {
/* Device interface */
DEVMETHOD(device_identify, smbios_identify),
DEVMETHOD(device_probe, smbios_probe),
DEVMETHOD(device_attach, smbios_attach),
DEVMETHOD(device_detach, smbios_detach),
{ 0, 0 }
};
static driver_t smbios_driver = {
"smbios",
smbios_methods,
sizeof(struct smbios_softc),
};
DRIVER_MODULE(smbios, nexus, smbios_driver, smbios_devclass, smbios_modevent, 0);
MODULE_VERSION(smbios, 1);
static int
smbios_cksum (struct smbios_eps *e)
{
u_int8_t *ptr;
u_int8_t cksum;
int i;
ptr = (u_int8_t *)e;
cksum = 0;
for (i = 0; i < e->Length; i++) {
cksum += ptr[i];
}
return (cksum);
}

301
sys/i386/bios/vpd.c Normal file
View File

@ -0,0 +1,301 @@
/*-
* Copyright (c) 2003 Matthew N. Dodd <winter@jurai.net>
* 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.
*
* $FreeBSD$
*/
/*
* VPD decoder for IBM systems (Thinkpads)
* http://www-1.ibm.com/support/docview.wss?uid=psg1MIGR-45120
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/sysctl.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <machine/md_var.h>
#include <machine/pc/bios.h>
/*
* Vital Product Data
*/
struct vpd {
u_int16_t Header; /* 0x55AA */
u_int8_t Signature[3]; /* Always 'VPD' */
u_int8_t Length; /* Sructure Length */
u_int8_t Reserved[7]; /* Reserved */
u_int8_t BuildID[9]; /* BIOS Build ID */
u_int8_t BoxSerial[7]; /* Box Serial Number */
u_int8_t PlanarSerial[11]; /* Motherboard Serial Number */
u_int8_t MachType[7]; /* Machine Type/Model */
u_int8_t Checksum; /* Checksum */
} __packed;
struct vpd_softc {
device_t dev;
struct resource * res;
int rid;
struct vpd * vpd;
struct sysctl_ctx_list ctx;
char BuildID[10];
char BoxSerial[8];
char PlanarSerial[12];
char MachineType[5];
char MachineModel[4];
};
#define VPD_START 0xf0000
#define VPD_STEP 0x10
#define VPD_OFF 2
#define VPD_LEN 3
#define VPD_SIG "VPD"
#define RES2VPD(res) ((struct vpd *)rman_get_virtual(res))
#define ADDR2VPD(addr) ((struct vpd *)BIOS_PADDRTOVADDR(addr))
static devclass_t vpd_devclass;
static void vpd_identify (driver_t *, device_t);
static int vpd_probe (device_t);
static int vpd_attach (device_t);
static int vpd_detach (device_t);
static int vpd_modevent (module_t, int, void *);
static int vpd_cksum (struct vpd *);
SYSCTL_NODE(_hw, OID_AUTO, vpd, CTLFLAG_RD, NULL, NULL);
SYSCTL_NODE(_hw_vpd, OID_AUTO, machine, CTLFLAG_RD, NULL, NULL);
SYSCTL_NODE(_hw_vpd_machine, OID_AUTO, type, CTLFLAG_RD, NULL, NULL);
SYSCTL_NODE(_hw_vpd_machine, OID_AUTO, model, CTLFLAG_RD, NULL, NULL);
SYSCTL_NODE(_hw_vpd, OID_AUTO, build_id, CTLFLAG_RD, NULL, NULL);
SYSCTL_NODE(_hw_vpd, OID_AUTO, serial, CTLFLAG_RD, NULL, NULL);
SYSCTL_NODE(_hw_vpd_serial, OID_AUTO, box, CTLFLAG_RD, NULL, NULL);
SYSCTL_NODE(_hw_vpd_serial, OID_AUTO, planar, CTLFLAG_RD, NULL, NULL);
static void
vpd_identify (driver_t *driver, device_t parent)
{
device_t child;
u_int32_t addr;
int length;
int rid;
if (!device_is_alive(parent))
return;
addr = bios_sigsearch(VPD_START, VPD_SIG, VPD_LEN, VPD_STEP, VPD_OFF);
if (addr != 0) {
rid = 0;
length = ADDR2VPD(addr)->Length;
child = BUS_ADD_CHILD(parent, 0, "vpd", -1);
device_set_driver(child, driver);
bus_set_resource(child, SYS_RES_MEMORY, rid, addr, length);
device_set_desc(child, "Vital Product Data Area");
}
return;
}
static int
vpd_probe (device_t dev)
{
struct resource *res;
int rid;
int error;
error = 0;
rid = 0;
res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid,
0ul, ~0ul, 1, RF_ACTIVE);
if (res == NULL) {
device_printf(dev, "Unable to allocate memory resource.\n");
error = ENOMEM;
goto bad;
}
if (vpd_cksum(RES2VPD(res))) {
device_printf(dev, "VPD checksum failed.\n");
error = ENXIO;
goto bad;
}
bad:
if (res)
bus_release_resource(dev, SYS_RES_MEMORY, rid, res);
return (error);
}
static int
vpd_attach (device_t dev)
{
struct vpd_softc *sc;
char unit[4];
int error;
sc = device_get_softc(dev);
error = 0;
sc->dev = dev;
sc->rid = 0;
sc->res = bus_alloc_resource(dev, SYS_RES_MEMORY, &sc->rid,
0ul, ~0ul, 1, RF_ACTIVE);
if (sc->res == NULL) {
device_printf(dev, "Unable to allocate memory resource.\n");
error = ENOMEM;
goto bad;
}
sc->vpd = RES2VPD(sc->res);
snprintf(unit, sizeof(unit), "%d", device_get_unit(sc->dev));
snprintf(sc->MachineType, 5, "%.4s", sc->vpd->MachType);
snprintf(sc->MachineModel, 4, "%.3s", sc->vpd->MachType+4);
snprintf(sc->BuildID, 10, "%.9s", sc->vpd->BuildID);
snprintf(sc->BoxSerial, 8, "%.7s", sc->vpd->BoxSerial);
snprintf(sc->PlanarSerial, 12, "%.11s", sc->vpd->PlanarSerial);
sysctl_ctx_init(&sc->ctx);
SYSCTL_ADD_STRING(&sc->ctx,
SYSCTL_STATIC_CHILDREN(_hw_vpd_machine_type), OID_AUTO,
unit, CTLFLAG_RD|CTLFLAG_DYN, sc->MachineType, 0, NULL);
SYSCTL_ADD_STRING(&sc->ctx,
SYSCTL_STATIC_CHILDREN(_hw_vpd_machine_model), OID_AUTO,
unit, CTLFLAG_RD|CTLFLAG_DYN, sc->MachineModel, 0, NULL);
SYSCTL_ADD_STRING(&sc->ctx,
SYSCTL_STATIC_CHILDREN(_hw_vpd_build_id), OID_AUTO,
unit, CTLFLAG_RD|CTLFLAG_DYN, sc->BuildID, 0, NULL);
SYSCTL_ADD_STRING(&sc->ctx,
SYSCTL_STATIC_CHILDREN(_hw_vpd_serial_box), OID_AUTO,
unit, CTLFLAG_RD|CTLFLAG_DYN, sc->BoxSerial, 0, NULL);
SYSCTL_ADD_STRING(&sc->ctx,
SYSCTL_STATIC_CHILDREN(_hw_vpd_serial_planar), OID_AUTO,
unit, CTLFLAG_RD|CTLFLAG_DYN, sc->PlanarSerial, 0, NULL);
device_printf(dev, "Machine Type: %.4s, Model: %.3s, Build ID: %.9s\n",
sc->MachineType, sc->MachineModel, sc->BuildID);
device_printf(dev, "Box Serial: %.7s, Planar Serial: %.11s\n",
sc->BoxSerial, sc->PlanarSerial);
return (0);
bad:
if (sc->res)
bus_release_resource(dev, SYS_RES_MEMORY, sc->rid, sc->res);
return (error);
}
static int
vpd_detach (device_t dev)
{
struct vpd_softc *sc;
sc = device_get_softc(dev);
if (sc->res)
bus_release_resource(dev, SYS_RES_MEMORY, sc->rid, sc->res);
sysctl_ctx_free(&sc->ctx);
return (0);
}
static int
vpd_modevent (mod, what, arg)
module_t mod;
int what;
void * arg;
{
device_t * devs;
int count;
int i;
switch (what) {
case MOD_LOAD:
break;
case MOD_UNLOAD:
devclass_get_devices(vpd_devclass, &devs, &count);
for (i = 0; i < count; i++) {
device_delete_child(device_get_parent(devs[i]), devs[i]);
}
break;
default:
break;
}
return (0);
}
static device_method_t vpd_methods[] = {
/* Device interface */
DEVMETHOD(device_identify, vpd_identify),
DEVMETHOD(device_probe, vpd_probe),
DEVMETHOD(device_attach, vpd_attach),
DEVMETHOD(device_detach, vpd_detach),
{ 0, 0 }
};
static driver_t vpd_driver = {
"vpd",
vpd_methods,
sizeof(struct vpd_softc),
};
DRIVER_MODULE(vpd, nexus, vpd_driver, vpd_devclass, vpd_modevent, 0);
MODULE_VERSION(vpd, 1);
static int
vpd_cksum (struct vpd *v)
{
u_int8_t *ptr;
u_int8_t cksum;
int i;
ptr = (u_int8_t *)v;
cksum = 0;
for (i = 0; i < v->Length ; i++) {
cksum += ptr[i];
}
/* XXX: For some reason this isn't right. */
printf("VPD cksum: 0x%02x\n", cksum);
cksum = 0;
return (cksum);
}