130 lines
3.6 KiB
C
130 lines
3.6 KiB
C
/* $OpenBSD: pchtemp.c,v 1.7 2022/03/11 18:00:51 mpi Exp $ */
|
|
/*
|
|
* Copyright (c) 2015 Mark Kettenis
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
/*
|
|
* Intel X99, C610, 9 Series and 100 Series PCH thermal sensor
|
|
* controller driver
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/device.h>
|
|
#include <sys/sensors.h>
|
|
|
|
#include <dev/pci/pcireg.h>
|
|
#include <dev/pci/pcivar.h>
|
|
#include <dev/pci/pcidevs.h>
|
|
|
|
#define PCHTEMP_PCI_TBAR 0x10
|
|
|
|
#define PCHTEMP_TEMP 0x00
|
|
#define PCHTEMP_TSEL 0x08
|
|
#define PCHTEMP_TSEL_ETS 0x01
|
|
|
|
struct pchtemp_softc {
|
|
struct device sc_dev;
|
|
|
|
bus_space_tag_t sc_memt;
|
|
bus_space_handle_t sc_memh;
|
|
bus_size_t sc_mems;
|
|
|
|
struct ksensor sc_sensor;
|
|
struct ksensordev sc_sensordev;
|
|
};
|
|
|
|
int pchtemp_match(struct device *, void *, void *);
|
|
void pchtemp_attach(struct device *, struct device *, void *);
|
|
void pchtemp_refresh(void *);
|
|
|
|
struct cfdriver pchtemp_cd = {
|
|
NULL, "pchtemp", DV_DULL
|
|
};
|
|
|
|
const struct cfattach pchtemp_ca = {
|
|
sizeof(struct pchtemp_softc), pchtemp_match, pchtemp_attach
|
|
};
|
|
|
|
const struct pci_matchid pchtemp_devices[] = {
|
|
{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_C610_THERM },
|
|
{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_8SERIES_LP_THERM },
|
|
{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_9SERIES_LP_THERM },
|
|
{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_100SERIES_THERM },
|
|
{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_100SERIES_LP_THERM },
|
|
{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_300SERIES_THERM },
|
|
{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_300SERIES_U_THERM },
|
|
{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_400SERIES_THERM },
|
|
{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_400SERIES_LP_THERM },
|
|
};
|
|
|
|
int
|
|
pchtemp_match(struct device *parent, void *match, void *aux)
|
|
{
|
|
return (pci_matchbyid(aux, pchtemp_devices, nitems(pchtemp_devices)));
|
|
}
|
|
|
|
void
|
|
pchtemp_attach(struct device *parent, struct device *self, void *aux)
|
|
{
|
|
struct pchtemp_softc *sc = (struct pchtemp_softc *)self;
|
|
struct pci_attach_args *pa = aux;
|
|
pcireg_t memtype;
|
|
uint8_t tsel;
|
|
|
|
memtype = PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT;
|
|
if (pci_mapreg_map(pa, PCHTEMP_PCI_TBAR, memtype, 0,
|
|
&sc->sc_memt, &sc->sc_memh, NULL, &sc->sc_mems, 0)) {
|
|
printf(": can't map registers\n");
|
|
return;
|
|
}
|
|
|
|
tsel = bus_space_read_1(sc->sc_memt, sc->sc_memh, PCHTEMP_TSEL);
|
|
if ((tsel & PCHTEMP_TSEL_ETS) == 0) {
|
|
printf(": disabled\n");
|
|
goto unmap;
|
|
}
|
|
|
|
pchtemp_refresh(sc);
|
|
|
|
strlcpy(sc->sc_sensordev.xname, sc->sc_dev.dv_xname,
|
|
sizeof(sc->sc_sensordev.xname));
|
|
|
|
sc->sc_sensor.type = SENSOR_TEMP;
|
|
sensor_attach(&sc->sc_sensordev, &sc->sc_sensor);
|
|
|
|
if (sensor_task_register(sc, pchtemp_refresh, 5) == NULL) {
|
|
printf(": can't register update task\n");
|
|
goto unmap;
|
|
}
|
|
|
|
sensordev_install(&sc->sc_sensordev);
|
|
|
|
printf("\n");
|
|
return;
|
|
|
|
unmap:
|
|
bus_space_unmap(sc->sc_memt, sc->sc_memh, sc->sc_mems);
|
|
}
|
|
|
|
void
|
|
pchtemp_refresh(void *arg)
|
|
{
|
|
struct pchtemp_softc *sc = arg;
|
|
uint16_t temp;
|
|
|
|
temp = bus_space_read_2(sc->sc_memt, sc->sc_memh, PCHTEMP_TEMP);
|
|
sc->sc_sensor.value = (temp * 500000 - 50000000) + 273150000;
|
|
}
|