diff options
Diffstat (limited to 'sys/dev/it/it.c')
| -rw-r--r-- | sys/dev/it/it.c | 346 |
1 files changed, 0 insertions, 346 deletions
diff --git a/sys/dev/it/it.c b/sys/dev/it/it.c deleted file mode 100644 index a5f0a8e..0000000 --- a/sys/dev/it/it.c +++ /dev/null @@ -1,346 +0,0 @@ -/* $FreeBSD$ */ -/* $OpenBSD: it.c,v 1.22 2007/03/22 16:55:31 deraadt Exp $ */ - -/*- - * Copyright (c) 2003 Julien Bordet <zejames@greyhats.org> - * 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 ``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 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/kernel.h> -#include <sys/bus.h> -#include <sys/module.h> -#include <machine/bus.h> -#include <machine/resource.h> - -#include <sys/rman.h> - -#include <isa/isavar.h> -#include <sys/systm.h> - -#include <sys/sensors.h> - -#include <dev/it/itvar.h> - -#if defined(ITDEBUG) -#define DPRINTF(x) do { printf x; } while (0) -#else -#define DPRINTF(x) -#endif - -/* - * IT87-compatible chips can typically measure voltages up to 4.096 V. - * To measure higher voltages the input is attenuated with (external) - * resistors. Negative voltages are measured using a reference - * voltage. So we have to convert the sensor values back to real - * voltages by applying the appropriate resistor factor. - */ -#define RFACT_NONE 10000 -#define RFACT(x, y) (RFACT_NONE * ((x) + (y)) / (y)) - -int it_probe(struct device *); -int it_attach(struct device *); -int it_detach(struct device *); -u_int8_t it_readreg(struct it_softc *, int); -void it_writereg(struct it_softc *, int, int); -void it_setup_volt(struct it_softc *, int, int); -void it_setup_temp(struct it_softc *, int, int); -void it_setup_fan(struct it_softc *, int, int); - -void it_generic_stemp(struct it_softc *, struct ksensor *); -void it_generic_svolt(struct it_softc *, struct ksensor *); -void it_generic_fanrpm(struct it_softc *, struct ksensor *); - -void it_refresh_sensor_data(struct it_softc *); -void it_refresh(void *); - -extern struct cfdriver it_cd; - -static device_method_t it_methods[] = { - /* Methods from the device interface */ - DEVMETHOD(device_probe, it_probe), - DEVMETHOD(device_attach, it_attach), - DEVMETHOD(device_detach, it_detach), - - /* Terminate method list */ - { 0, 0 } -}; - -static driver_t it_driver = { - "it", - it_methods, - sizeof (struct it_softc) -}; - -static devclass_t it_devclass; - -DRIVER_MODULE(it, isa, it_driver, it_devclass, NULL, NULL); - - -const int it_vrfact[] = { - RFACT_NONE, - RFACT_NONE, - RFACT_NONE, - RFACT(68, 100), - RFACT(30, 10), - RFACT(21, 10), - RFACT(83, 20), - RFACT(68, 100), - RFACT_NONE -}; - -int -it_probe(struct device *dev) -{ - struct resource *iores; - int iorid = 0; - bus_space_tag_t iot; - bus_space_handle_t ioh; - u_int8_t cr; - - iores = bus_alloc_resource(dev, SYS_RES_IOPORT, &iorid, - 0ul, ~0ul, 8, RF_ACTIVE); - if (iores == NULL) { - DPRINTF(("%s: can't map i/o space\n", __func__)); - return 1; - } - iot = rman_get_bustag(iores); - ioh = rman_get_bushandle(iores); - - /* Check Vendor ID */ - bus_space_write_1(iot, ioh, ITC_ADDR, ITD_CHIPID); - cr = bus_space_read_1(iot, ioh, ITC_DATA); - bus_release_resource(dev, SYS_RES_IOPORT, iorid, iores); - DPRINTF(("it: vendor id 0x%x\n", cr)); - if (cr != IT_ID_IT87) - return 1; - - return 0; -} - -int -it_attach(struct device *dev) -{ - struct it_softc *sc = device_get_softc(dev); - int i; - u_int8_t cr; - - sc->sc_dev = dev; - sc->sc_iores = bus_alloc_resource(dev, SYS_RES_IOPORT, &sc->sc_iorid, - 0ul, ~0ul, 8, RF_ACTIVE); - if (sc->sc_iores == NULL) { - device_printf(dev, "can't map i/o space\n"); - return 1; - } - sc->sc_iot = rman_get_bustag(sc->sc_iores); - sc->sc_ioh = rman_get_bushandle(sc->sc_iores); - - sc->numsensors = IT_NUM_SENSORS; - - it_setup_fan(sc, 0, 3); - it_setup_volt(sc, 3, 9); - it_setup_temp(sc, 12, 3); - - if (sensor_task_register(sc, it_refresh, 5)) { - device_printf(sc->sc_dev, "unable to register update task\n"); - return 1; - } - - /* Activate monitoring */ - cr = it_readreg(sc, ITD_CONFIG); - cr |= 0x01 | 0x08; - it_writereg(sc, ITD_CONFIG, cr); - - /* Initialize sensors */ - strlcpy(sc->sensordev.xname, device_get_nameunit(sc->sc_dev), - sizeof(sc->sensordev.xname)); - for (i = 0; i < sc->numsensors; ++i) - sensor_attach(&sc->sensordev, &sc->sensors[i]); - sensordev_install(&sc->sensordev); - - return 0; -} - -int -it_detach(struct device *dev) -{ - struct it_softc *sc = device_get_softc(dev); - int error; - - sensordev_deinstall(&sc->sensordev); - sensor_task_unregister(sc); - - error = bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_iorid, - sc->sc_iores); - if (error) - return error; - - return 0; -} - -u_int8_t -it_readreg(struct it_softc *sc, int reg) -{ - bus_space_write_1(sc->sc_iot, sc->sc_ioh, ITC_ADDR, reg); - return (bus_space_read_1(sc->sc_iot, sc->sc_ioh, ITC_DATA)); -} - -void -it_writereg(struct it_softc *sc, int reg, int val) -{ - bus_space_write_1(sc->sc_iot, sc->sc_ioh, ITC_ADDR, reg); - bus_space_write_1(sc->sc_iot, sc->sc_ioh, ITC_DATA, val); -} - -void -it_setup_volt(struct it_softc *sc, int start, int n) -{ - int i; - - for (i = 0; i < n; ++i) { - sc->sensors[start + i].type = SENSOR_VOLTS_DC; - } - - snprintf(sc->sensors[start + 0].desc, sizeof(sc->sensors[0].desc), - "VCORE_A"); - snprintf(sc->sensors[start + 1].desc, sizeof(sc->sensors[1].desc), - "VCORE_B"); - snprintf(sc->sensors[start + 2].desc, sizeof(sc->sensors[2].desc), - "+3.3V"); - snprintf(sc->sensors[start + 3].desc, sizeof(sc->sensors[3].desc), - "+5V"); - snprintf(sc->sensors[start + 4].desc, sizeof(sc->sensors[4].desc), - "+12V"); - snprintf(sc->sensors[start + 5].desc, sizeof(sc->sensors[5].desc), - "Unused"); - snprintf(sc->sensors[start + 6].desc, sizeof(sc->sensors[6].desc), - "-12V"); - snprintf(sc->sensors[start + 7].desc, sizeof(sc->sensors[7].desc), - "+5VSB"); - snprintf(sc->sensors[start + 8].desc, sizeof(sc->sensors[8].desc), - "VBAT"); -} - -void -it_setup_temp(struct it_softc *sc, int start, int n) -{ - int i; - - for (i = 0; i < n; ++i) - sc->sensors[start + i].type = SENSOR_TEMP; -} - -void -it_setup_fan(struct it_softc *sc, int start, int n) -{ - int i; - - for (i = 0; i < n; ++i) - sc->sensors[start + i].type = SENSOR_FANRPM; -} - -void -it_generic_stemp(struct it_softc *sc, struct ksensor *sensors) -{ - int i, sdata; - - for (i = 0; i < 3; i++) { - sdata = it_readreg(sc, ITD_SENSORTEMPBASE + i); - /* Convert temperature to Fahrenheit degres */ - sensors[i].value = sdata * 1000000 + 273150000; - } -} - -void -it_generic_svolt(struct it_softc *sc, struct ksensor *sensors) -{ - int i, sdata; - - for (i = 0; i < 9; i++) { - sdata = it_readreg(sc, ITD_SENSORVOLTBASE + i); - DPRINTF(("sdata[volt%d] 0x%x\n", i, sdata)); - /* voltage returned as (mV >> 4) */ - sensors[i].value = (sdata << 4); - /* these two values are negative and formula is different */ - if (i == 5 || i == 6) - sensors[i].value = ((sdata << 4) - IT_VREF); - /* rfact is (factor * 10^4) */ - sensors[i].value *= it_vrfact[i]; - /* division by 10 gets us back to uVDC */ - sensors[i].value /= 10; - if (i == 5 || i == 6) - sensors[i].value += IT_VREF * 1000; - } -} - -void -it_generic_fanrpm(struct it_softc *sc, struct ksensor *sensors) -{ - int i, sdata, divisor, odivisor, ndivisor; - - odivisor = ndivisor = divisor = it_readreg(sc, ITD_FAN); - for (i = 0; i < 3; i++, divisor >>= 3) { - sensors[i].flags &= ~SENSOR_FINVALID; - if ((sdata = it_readreg(sc, ITD_SENSORFANBASE + i)) == 0xff) { - sensors[i].flags |= SENSOR_FINVALID; - if (i == 2) - ndivisor ^= 0x40; - else { - ndivisor &= ~(7 << (i * 3)); - ndivisor |= ((divisor + 1) & 7) << (i * 3); - } - } else if (sdata == 0) { - sensors[i].value = 0; - } else { - if (i == 2) - divisor = divisor & 1 ? 3 : 1; - sensors[i].value = 1350000 / (sdata << (divisor & 7)); - } - } - if (ndivisor != odivisor) - it_writereg(sc, ITD_FAN, ndivisor); -} - -/* - * pre: last read occurred >= 1.5 seconds ago - * post: sensors[] current data are the latest from the chip - */ -void -it_refresh_sensor_data(struct it_softc *sc) -{ - /* Refresh our stored data for every sensor */ - it_generic_stemp(sc, &sc->sensors[12]); - it_generic_svolt(sc, &sc->sensors[3]); - it_generic_fanrpm(sc, &sc->sensors[0]); -} - -void -it_refresh(void *arg) -{ - struct it_softc *sc = (struct it_softc *)arg; - - it_refresh_sensor_data(sc); -} |
