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/* $OpenBSD: adm1026.c,v 1.8 2006/12/23 17:46:39 deraadt Exp $ */
/*
* Copyright (c) 2005 Theo de Raadt
*
* 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.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/sensors.h>
#include <dev/i2c/i2cvar.h>
/* ADM 1026 registers */
#define ADM1026_TEMP 0x1f
#define ADM1026_STATUS 0x20
#define ADM1026_Vbat 0x26
#define ADM1026_Ain8 0x27
#define ADM1026_EXT1 0x28
#define ADM1026_EXT2 0x29
#define ADM1026_V3_3stby 0x2a
#define ADM1026_V3_3main 0x2b
#define ADM1026_V5 0x2c
#define ADM1026_Vccp 0x2d
#define ADM1026_V12 0x2e
#define ADM1026_Vminus12 0x2f
#define ADM1026_FAN0 0x38
#define ADM1026_FAN1 0x39
#define ADM1026_FAN2 0x3a
#define ADM1026_FAN3 0x3b
#define ADM1026_FAN4 0x3c
#define ADM1026_FAN5 0x3d
#define ADM1026_FAN6 0x3e
#define ADM1026_FAN7 0x3f
#define ADM1026_EXT1_OFF 0x6e
#define ADM1026_EXT2_OFF 0x6f
#define ADM1026_FAN0123DIV 0x02
#define ADM1026_FAN4567DIV 0x03
#define ADM1026_CONTROL 0x00
#define ADM1026_CONTROL_START 0x01
#define ADM1026_CONTROL_INTCLR 0x04
/* Sensors */
#define ADMCTS_TEMP 0
#define ADMCTS_EXT1 1
#define ADMCTS_EXT2 2
#define ADMCTS_Vbat 3
#define ADMCTS_V3_3stby 4
#define ADMCTS_V3_3main 5
#define ADMCTS_V5 6
#define ADMCTS_Vccp 7
#define ADMCTS_V12 8
#define ADMCTS_Vminus12 9
#define ADMCTS_FAN0 10
#define ADMCTS_FAN1 11
#define ADMCTS_FAN2 12
#define ADMCTS_FAN3 13
#define ADMCTS_FAN4 14
#define ADMCTS_FAN5 15
#define ADMCTS_FAN6 16
#define ADMCTS_FAN7 17
#define ADMCTS_NUM_SENSORS 18
struct admcts_softc {
struct device sc_dev;
i2c_tag_t sc_tag;
i2c_addr_t sc_addr;
struct sensor sc_sensor[ADMCTS_NUM_SENSORS];
struct sensordev sc_sensordev;
int sc_fanmul[8];
};
int admcts_match(struct device *, void *, void *);
void admcts_attach(struct device *, struct device *, void *);
void admcts_refresh(void *);
struct cfattach admcts_ca = {
sizeof(struct admcts_softc), admcts_match, admcts_attach
};
struct cfdriver admcts_cd = {
NULL, "admcts", DV_DULL
};
int
admcts_match(struct device *parent, void *match, void *aux)
{
struct i2c_attach_args *ia = aux;
if (strcmp(ia->ia_name, "adm1026") == 0)
return (1);
return (0);
}
void
admcts_attach(struct device *parent, struct device *self, void *aux)
{
struct admcts_softc *sc = (struct admcts_softc *)self;
struct i2c_attach_args *ia = aux;
u_int8_t cmd, data, data2;
int i;
sc->sc_tag = ia->ia_tag;
sc->sc_addr = ia->ia_addr;
iic_acquire_bus(sc->sc_tag, 0);
cmd = ADM1026_CONTROL;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0)) {
iic_release_bus(sc->sc_tag, 0);
printf(": cannot get control register\n");
return;
}
data2 = data | ADM1026_CONTROL_START;
data2 = data2 & ~ADM1026_CONTROL_INTCLR;
if (data != data2) {
if (iic_exec(sc->sc_tag, I2C_OP_WRITE_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data2, sizeof data2, 0)) {
iic_release_bus(sc->sc_tag, 0);
printf(": cannot set control register\n");
return;
}
}
cmd = ADM1026_FAN0123DIV;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0)) {
iic_release_bus(sc->sc_tag, 0);
printf(": cannot get fan0123div register\n");
return;
}
sc->sc_fanmul[0] = (1 << (data >> 0) & 0x3);
sc->sc_fanmul[1] = (1 << (data >> 2) & 0x3);
sc->sc_fanmul[2] = (1 << (data >> 4) & 0x3);
sc->sc_fanmul[3] = (1 << (data >> 6) & 0x3);
cmd = ADM1026_FAN4567DIV;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0)) {
iic_release_bus(sc->sc_tag, 0);
printf(": cannot get fan0123div register\n");
return;
}
sc->sc_fanmul[4] = (1 << (data >> 0) & 0x3);
sc->sc_fanmul[5] = (1 << (data >> 2) & 0x3);
sc->sc_fanmul[6] = (1 << (data >> 4) & 0x3);
sc->sc_fanmul[7] = (1 << (data >> 6) & 0x3);
iic_release_bus(sc->sc_tag, 0);
/* Initialize sensor data. */
strlcpy(sc->sc_sensordev.xname, sc->sc_dev.dv_xname,
sizeof(sc->sc_sensordev.xname));
sc->sc_sensor[ADMCTS_TEMP].type = SENSOR_TEMP;
strlcpy(sc->sc_sensor[ADMCTS_TEMP].desc, "Internal",
sizeof(sc->sc_sensor[ADMCTS_TEMP].desc));
sc->sc_sensor[ADMCTS_Vbat].type = SENSOR_VOLTS_DC;
strlcpy(sc->sc_sensor[ADMCTS_Vbat].desc, "Vbat",
sizeof(sc->sc_sensor[ADMCTS_Vbat].desc));
sc->sc_sensor[ADMCTS_EXT1].type = SENSOR_TEMP;
strlcpy(sc->sc_sensor[ADMCTS_EXT1].desc, "External",
sizeof(sc->sc_sensor[ADMCTS_EXT1].desc));
sc->sc_sensor[ADMCTS_EXT2].type = SENSOR_TEMP;
strlcpy(sc->sc_sensor[ADMCTS_EXT2].desc, "External",
sizeof(sc->sc_sensor[ADMCTS_EXT2].desc));
sc->sc_sensor[ADMCTS_V3_3stby].type = SENSOR_VOLTS_DC;
strlcpy(sc->sc_sensor[ADMCTS_V3_3stby].desc, "3.3 V standby",
sizeof(sc->sc_sensor[ADMCTS_V3_3stby].desc));
sc->sc_sensor[ADMCTS_V3_3main].type = SENSOR_VOLTS_DC;
strlcpy(sc->sc_sensor[ADMCTS_V3_3main].desc, "3.3 V main",
sizeof(sc->sc_sensor[ADMCTS_V3_3main].desc));
sc->sc_sensor[ADMCTS_V5].type = SENSOR_VOLTS_DC;
strlcpy(sc->sc_sensor[ADMCTS_V5].desc, "5 V",
sizeof(sc->sc_sensor[ADMCTS_V5].desc));
sc->sc_sensor[ADMCTS_Vccp].type = SENSOR_VOLTS_DC;
strlcpy(sc->sc_sensor[ADMCTS_Vccp].desc, "Vccp",
sizeof(sc->sc_sensor[ADMCTS_Vccp].desc));
sc->sc_sensor[ADMCTS_V12].type = SENSOR_VOLTS_DC;
strlcpy(sc->sc_sensor[ADMCTS_V12].desc, "12 V",
sizeof(sc->sc_sensor[ADMCTS_V12].desc));
sc->sc_sensor[ADMCTS_Vminus12].type = SENSOR_VOLTS_DC;
strlcpy(sc->sc_sensor[ADMCTS_Vminus12].desc, "-12 V",
sizeof(sc->sc_sensor[ADMCTS_Vminus12].desc));
sc->sc_sensor[ADMCTS_FAN1].type = SENSOR_FANRPM;
sc->sc_sensor[ADMCTS_FAN2].type = SENSOR_FANRPM;
sc->sc_sensor[ADMCTS_FAN3].type = SENSOR_FANRPM;
sc->sc_sensor[ADMCTS_FAN4].type = SENSOR_FANRPM;
sc->sc_sensor[ADMCTS_FAN5].type = SENSOR_FANRPM;
sc->sc_sensor[ADMCTS_FAN6].type = SENSOR_FANRPM;
sc->sc_sensor[ADMCTS_FAN7].type = SENSOR_FANRPM;
if (sensor_task_register(sc, admcts_refresh, 5)) {
printf(", unable to register update task\n");
return;
}
for (i = 0; i < ADMCTS_NUM_SENSORS; i++)
sensor_attach(&sc->sc_sensordev, &sc->sc_sensor[i]);
sensordev_install(&sc->sc_sensordev);
printf("\n");
}
static void
fanval(struct sensor *sens, int mul, u_int8_t data)
{
int tmp = data * mul;
if (tmp == 0)
sens->flags |= SENSOR_FINVALID;
else
sens->value = 1350000 / tmp;
}
void
admcts_refresh(void *arg)
{
struct admcts_softc *sc = arg;
u_int8_t cmd, data;
int8_t sdata;
iic_acquire_bus(sc->sc_tag, 0);
cmd = ADM1026_TEMP;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &sdata, sizeof sdata, 0) == 0)
sc->sc_sensor[ADMCTS_TEMP].value = 273150000 + 1000000 * sdata;
cmd = ADM1026_EXT1;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &sdata, sizeof sdata, 0) == 0)
sc->sc_sensor[ADMCTS_EXT1].value = 273150000 + 1000000 * sdata;
cmd = ADM1026_EXT2;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &sdata, sizeof sdata, 0) == 0)
sc->sc_sensor[ADMCTS_EXT2].value = 273150000 + 1000000 * sdata;
cmd = ADM1026_Vbat;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
sc->sc_sensor[ADMCTS_Vbat].value = 3000000 * data / 192;
cmd = ADM1026_V3_3stby;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
sc->sc_sensor[ADMCTS_V3_3stby].value = 3300000 * data / 192;
cmd = ADM1026_V3_3main;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
sc->sc_sensor[ADMCTS_V3_3main].value = 3300000 * data / 192;
cmd = ADM1026_V5;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
sc->sc_sensor[ADMCTS_V5].value = 5500000 * data / 192;
cmd = ADM1026_Vccp;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
sc->sc_sensor[ADMCTS_Vccp].value = 2250000 * data / 192;
cmd = ADM1026_V12;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
sc->sc_sensor[ADMCTS_V12].value = 12000000 * data / 192;
cmd = ADM1026_Vminus12;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
sc->sc_sensor[ADMCTS_Vminus12].value = -2125000 * data / 192;
cmd = ADM1026_FAN0;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
fanval(&sc->sc_sensor[ADMCTS_FAN0], sc->sc_fanmul[0], data);
cmd = ADM1026_FAN1;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
fanval(&sc->sc_sensor[ADMCTS_FAN1], sc->sc_fanmul[1], data);
cmd = ADM1026_FAN2;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
fanval(&sc->sc_sensor[ADMCTS_FAN2], sc->sc_fanmul[2], data);
cmd = ADM1026_FAN3;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
fanval(&sc->sc_sensor[ADMCTS_FAN3], sc->sc_fanmul[3], data);
cmd = ADM1026_FAN4;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
fanval(&sc->sc_sensor[ADMCTS_FAN4], sc->sc_fanmul[4], data);
cmd = ADM1026_FAN5;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
fanval(&sc->sc_sensor[ADMCTS_FAN5], sc->sc_fanmul[5], data);
cmd = ADM1026_FAN6;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
fanval(&sc->sc_sensor[ADMCTS_FAN6], sc->sc_fanmul[6], data);
cmd = ADM1026_FAN7;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
fanval(&sc->sc_sensor[ADMCTS_FAN7], sc->sc_fanmul[7], data);
iic_release_bus(sc->sc_tag, 0);
}
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