mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-28 11:57:28 +00:00
6472ac3d8a
The SYSCTL_NODE macro defines a list that stores all child-elements of that node. If there's no SYSCTL_DECL macro anywhere else, there's no reason why it shouldn't be static.
298 lines
7.8 KiB
C
298 lines
7.8 KiB
C
/*-
|
|
* 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
/*
|
|
* 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/vm_param.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 *);
|
|
|
|
static SYSCTL_NODE(_hw, OID_AUTO, vpd, CTLFLAG_RD, NULL, NULL);
|
|
static SYSCTL_NODE(_hw_vpd, OID_AUTO, machine, CTLFLAG_RD, NULL, NULL);
|
|
static SYSCTL_NODE(_hw_vpd_machine, OID_AUTO, type, CTLFLAG_RD, NULL, NULL);
|
|
static SYSCTL_NODE(_hw_vpd_machine, OID_AUTO, model, CTLFLAG_RD, NULL, NULL);
|
|
static SYSCTL_NODE(_hw_vpd, OID_AUTO, build_id, CTLFLAG_RD, NULL, NULL);
|
|
static SYSCTL_NODE(_hw_vpd, OID_AUTO, serial, CTLFLAG_RD, NULL, NULL);
|
|
static SYSCTL_NODE(_hw_vpd_serial, OID_AUTO, box, CTLFLAG_RD, NULL, NULL);
|
|
static 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, 5, "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_any(dev, SYS_RES_MEMORY, &rid, 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. BIOS update may be required.\n");
|
|
|
|
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_any(dev, SYS_RES_MEMORY, &sc->rid,
|
|
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);
|
|
|
|
/*
|
|
* Perform a checksum over the VPD structure, starting with
|
|
* the BuildID. (Jean Delvare <khali@linux-fr.org>)
|
|
*/
|
|
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 = offsetof(struct vpd, BuildID); i < v->Length ; i++)
|
|
cksum += ptr[i];
|
|
return (cksum);
|
|
}
|