File: [local] / sys / dev / i2c / asb100.c (download)
Revision 1.1, Tue Mar 4 16:09:57 2008 UTC (16 years, 2 months ago) by nbrk
Branch point for: MAIN
Initial revision
|
/* $OpenBSD: asb100.c,v 1.10 2007/06/24 05:34:35 dlg Exp $ */
/*
* Copyright (c) 2005 Damien Miller <djm@openbsd.org>
*
* 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>
/* Apparently the ASB100 always lives here */
#define ASB100_ADDR 0x2d
/* ASB100 registers */
#define ASB100_TEMP3 0x17
#define ASB100_TEMP3_MAX 0x18
#define ASB100_TEMP3_HYST 0x19
#define ASB100_VIN0 0x20
#define ASB100_VIN1 0x21
#define ASB100_VIN2 0x22
#define ASB100_VIN3 0x23
#define ASB100_VIN4 0x24
#define ASB100_VIN5 0x25
#define ASB100_VIN6 0x26
#define ASB100_TEMP0 0x27
#define ASB100_FAN0 0x28
#define ASB100_FAN1 0x29
#define ASB100_FAN2 0x30
#define ASB100_VIN0_MIN 0x2b
#define ASB100_VIN0_MAX 0x2c
#define ASB100_VIN1_MIN 0x2d
#define ASB100_VIN1_MAX 0x2e
#define ASB100_VIN2_MIN 0x2f
#define ASB100_VIN2_MAX 0x30
#define ASB100_VIN3_MIN 0x31
#define ASB100_VIN3_MAX 0x32
#define ASB100_VIN4_MIN 0x33
#define ASB100_VIN4_MAX 0x34
#define ASB100_VIN5_MIN 0x35
#define ASB100_VIN5_MAX 0x36
#define ASB100_VIN6_MIN 0x37
#define ASB100_VIN6_MAX 0x38
#define ASB100_TEMP0_MAX 0x39
#define ASB100_TEMP0_HYST 0x3a
#define ASB100_FAN0_MIN 0x3b
#define ASB100_FAN1_MIN 0x3c
#define ASB100_FAN2_MIN 0x3d
#define ASB100_CONFIG 0x40
#define ASB100_ALARM1 0x41
#define ASB100_ALARM2 0x42
#define ASB100_SMIM1 0x43
#define ASB100_SMIM2 0x44
#define ASB100_VID_FANDIV01 0x47 /* 0-3 vid, 4-5 fan0, 6-7 fan1 */
#define ASB100_I2C_ADDR 0x48
#define ASB100_CHIPID 0x49
#define ASB100_I2C_SUBADDR 0x4a
#define ASB100_PIN_FANDIV2 0x4b /* 6-7 fan2 */
#define ASB100_IRQ 0x4c
#define ASB100_BANK 0x4e
#define ASB100_CHIPMAN 0x4f
#define ASB100_VID_CHIPID 0x58 /* 0 vid highbit, 1-7 chipid */
#define ASB100_PWM 0x59 /* 0-3 duty cycle, 7 enable */
/* TEMP1/2 sensors live on other chips, pointed to by the I2C_SUBADDR reg */
#define ASB100_SUB1_TEMP1 0x50 /* LM75 format */
#define ASB100_SUB1_TEMP1_HYST 0x53
#define ASB100_SUB1_TEMP1_MAX 0x55
#define ASB100_SUB2_TEMP2 0x50 /* LM75 format */
#define ASB100_SUB2_TEMP2_HYST 0x53
#define ASB100_SUB2_TEMP2_MAX 0x55
/* Sensors */
#define ASB100_SENSOR_VIN0 0
#define ASB100_SENSOR_VIN1 1
#define ASB100_SENSOR_VIN2 2
#define ASB100_SENSOR_VIN3 3
#define ASB100_SENSOR_VIN4 4
#define ASB100_SENSOR_VIN5 5
#define ASB100_SENSOR_VIN6 6
#define ASB100_SENSOR_FAN0 7
#define ASB100_SENSOR_FAN1 8
#define ASB100_SENSOR_FAN2 9
#define ASB100_SENSOR_TEMP0 10
#define ASB100_SENSOR_TEMP1 11
#define ASB100_SENSOR_TEMP2 12
#define ASB100_SENSOR_TEMP3 13
#define ASB100_NUM_SENSORS 14
struct asbtm_softc {
struct device sc_dev;
i2c_tag_t sc_tag;
i2c_addr_t sc_addr;
struct ksensor sc_sensor[ASB100_NUM_SENSORS];
struct ksensordev sc_sensordev;
int sc_fanmul[3];
int sc_satellite[2];
};
int asbtm_banksel(struct asbtm_softc *, u_int8_t, u_int8_t *);
int asbtm_match(struct device *, void *, void *);
void asbtm_attach(struct device *, struct device *, void *);
void asbtm_refresh(void *);
struct cfattach asbtm_ca = {
sizeof(struct asbtm_softc), asbtm_match, asbtm_attach
};
struct cfdriver asbtm_cd = {
NULL, "asbtm", DV_DULL
};
int
asbtm_match(struct device *parent, void *match, void *aux)
{
struct i2c_attach_args *ia = aux;
if (strcmp(ia->ia_name, "asb100") == 0)
return (1);
return (0);
}
int
asbtm_banksel(struct asbtm_softc *sc, u_int8_t new_bank, u_int8_t *orig_bank)
{
u_int8_t cmd, data;
new_bank &= 0xf;
cmd = ASB100_BANK;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP, sc->sc_addr,
&cmd, sizeof cmd, &data, sizeof data, 0))
return (-1);
if (orig_bank != NULL)
*orig_bank = data & 0x0f;
if ((data & 0xf) != new_bank) {
cmd = ASB100_BANK;
data = new_bank | (data & 0xf0);
if (iic_exec(sc->sc_tag, I2C_OP_WRITE_WITH_STOP, sc->sc_addr,
&cmd, sizeof cmd, &data, sizeof data, 0))
return (-1);
}
return (0);
}
void
asbtm_attach(struct device *parent, struct device *self, void *aux)
{
struct asbtm_softc *sc = (struct asbtm_softc *)self;
struct i2c_attach_args *ia = aux;
u_int8_t orig_bank, cmd, data;
int i;
sc->sc_tag = ia->ia_tag;
sc->sc_addr = ia->ia_addr;
iic_acquire_bus(sc->sc_tag, 0);
if (asbtm_banksel(sc, 0, &orig_bank) == -1) {
printf(": cannot get/set register bank\n");
iic_release_bus(sc->sc_tag, 0);
return;
}
cmd = ASB100_VID_FANDIV01;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP, sc->sc_addr,
&cmd, sizeof cmd, &data, sizeof data, 0)) {
printf(": cannot get fan01 register\n");
iic_release_bus(sc->sc_tag, 0);
return;
}
sc->sc_fanmul[0] = (1 << (data >> 4) & 0x3);
sc->sc_fanmul[1] = (1 << (data >> 6) & 0x3);
cmd = ASB100_PIN_FANDIV2;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP, sc->sc_addr,
&cmd, sizeof cmd, &data, sizeof data, 0)) {
printf(": cannot get fan2 register\n");
iic_release_bus(sc->sc_tag, 0);
return;
}
sc->sc_fanmul[0] = (1 << (data >> 6) & 0x3);
cmd = ASB100_I2C_SUBADDR;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP, sc->sc_addr,
&cmd, sizeof cmd, &data, sizeof data, 0)) {
printf(": cannot get satellite chip address register\n");
iic_release_bus(sc->sc_tag, 0);
return;
}
/* Maybe a relative address of zero means "not present" here... */
sc->sc_satellite[0] = 0x48 + (data & 0xf);
sc->sc_satellite[1] = 0x48 + ((data >> 4) & 0xf);
iic_ignore_addr(sc->sc_satellite[0]);
iic_ignore_addr(sc->sc_satellite[1]);
if (sc->sc_satellite[0] == sc->sc_satellite[1])
sc->sc_satellite[1] = -1;
if (asbtm_banksel(sc, orig_bank, NULL) == -1) {
printf(": cannot restore saved bank %d\n", orig_bank);
iic_release_bus(sc->sc_tag, 0);
return;
}
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[ASB100_SENSOR_VIN0].type = SENSOR_VOLTS_DC;
sc->sc_sensor[ASB100_SENSOR_VIN1].type = SENSOR_VOLTS_DC;
sc->sc_sensor[ASB100_SENSOR_VIN2].type = SENSOR_VOLTS_DC;
sc->sc_sensor[ASB100_SENSOR_VIN3].type = SENSOR_VOLTS_DC;
sc->sc_sensor[ASB100_SENSOR_VIN4].type = SENSOR_VOLTS_DC;
sc->sc_sensor[ASB100_SENSOR_VIN5].type = SENSOR_VOLTS_DC;
sc->sc_sensor[ASB100_SENSOR_VIN6].type = SENSOR_VOLTS_DC;
sc->sc_sensor[ASB100_SENSOR_FAN0].type = SENSOR_FANRPM;
sc->sc_sensor[ASB100_SENSOR_FAN1].type = SENSOR_FANRPM;
sc->sc_sensor[ASB100_SENSOR_FAN2].type = SENSOR_FANRPM;
sc->sc_sensor[ASB100_SENSOR_TEMP0].type = SENSOR_TEMP;
strlcpy(sc->sc_sensor[ASB100_SENSOR_TEMP0].desc, "External",
sizeof(sc->sc_sensor[ASB100_SENSOR_TEMP0].desc));
sc->sc_sensor[ASB100_SENSOR_TEMP1].type = SENSOR_TEMP;
strlcpy(sc->sc_sensor[ASB100_SENSOR_TEMP1].desc, "Internal",
sizeof(sc->sc_sensor[ASB100_SENSOR_TEMP1].desc));
sc->sc_sensor[ASB100_SENSOR_TEMP2].type = SENSOR_TEMP;
strlcpy(sc->sc_sensor[ASB100_SENSOR_TEMP2].desc, "Internal",
sizeof(sc->sc_sensor[ASB100_SENSOR_TEMP2].desc));
if (sc->sc_satellite[1] == -1)
sc->sc_sensor[ASB100_SENSOR_TEMP2].flags |= SENSOR_FINVALID;
sc->sc_sensor[ASB100_SENSOR_TEMP3].type = SENSOR_TEMP;
strlcpy(sc->sc_sensor[ASB100_SENSOR_TEMP3].desc, "External",
sizeof(sc->sc_sensor[ASB100_SENSOR_TEMP3].desc));
if (sensor_task_register(sc, asbtm_refresh, 5) == NULL) {
printf(", unable to register update task\n");
return;
}
for (i = 0; i < ASB100_NUM_SENSORS; i++)
sensor_attach(&sc->sc_sensordev, &sc->sc_sensor[i]);
sensordev_install(&sc->sc_sensordev);
printf("\n");
}
static void
fanval(struct ksensor *sens, int mul, u_int8_t data)
{
int tmp = data * mul;
if (tmp == 0)
sens->flags |= SENSOR_FINVALID;
else {
sens->value = 1350000 / tmp;
sens->flags &= ~SENSOR_FINVALID;
}
}
void
asbtm_refresh(void *arg)
{
struct asbtm_softc *sc = arg;
u_int8_t orig_bank, cmd, data;
int8_t sdata;
u_int16_t sdata2;
iic_acquire_bus(sc->sc_tag, 0);
if (asbtm_banksel(sc, 0, &orig_bank) == -1) {
printf("%s: cannot get/set register bank\n",
sc->sc_dev.dv_xname);
iic_release_bus(sc->sc_tag, 0);
return;
}
cmd = ASB100_VIN0;
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[ASB100_SENSOR_VIN0].value = (data * 1000000) / 16;
cmd = ASB100_VIN1;
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[ASB100_SENSOR_VIN1].value = (data * 1000000) / 16;
cmd = ASB100_VIN2;
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[ASB100_SENSOR_VIN2].value = (data * 1000000) / 16;
cmd = ASB100_VIN3;
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[ASB100_SENSOR_VIN3].value = (data * 1000000) / 16;
cmd = ASB100_VIN4;
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[ASB100_SENSOR_VIN4].value = (data * 1000000) / 16;
cmd = ASB100_VIN5;
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[ASB100_SENSOR_VIN5].value = (data * 1000000) / 16;
cmd = ASB100_VIN6;
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[ASB100_SENSOR_VIN6].value = (data * 1000000) / 16;
cmd = ASB100_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[ASB100_SENSOR_FAN0],
sc->sc_fanmul[0], data);
cmd = ASB100_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[ASB100_SENSOR_FAN1],
sc->sc_fanmul[1], data);
cmd = ASB100_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[ASB100_SENSOR_FAN2],
sc->sc_fanmul[2], data);
cmd = ASB100_TEMP0;
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[ASB100_SENSOR_TEMP0].value = 273150000 +
1000000 * sdata;
cmd = ASB100_TEMP3;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP, sc->sc_addr,
&cmd, sizeof cmd, &data, sizeof sdata, 0) == 0)
sc->sc_sensor[ASB100_SENSOR_TEMP3].value = 273150000 +
1000000 * sdata;
/* Read satellite chips for TEMP1/TEMP2 */
cmd = ASB100_SUB1_TEMP1;
if (sc->sc_satellite[0] != -1) {
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_satellite[0], &cmd, sizeof cmd, &sdata2,
sizeof sdata2, 0) == 0 && sdata2 != 0xffff) {
sc->sc_sensor[ASB100_SENSOR_TEMP1].value = 273150000 +
500000 * (swap16(sdata2) / 128);
sc->sc_sensor[ASB100_SENSOR_TEMP2].flags &=
~SENSOR_FINVALID;
} else {
sc->sc_sensor[ASB100_SENSOR_TEMP2].flags |=
SENSOR_FINVALID;
}
}
cmd = ASB100_SUB2_TEMP2;
if (sc->sc_satellite[1] != -1) {
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_satellite[1], &cmd, sizeof cmd, &sdata2,
sizeof sdata2, 0) == 0 && sdata2 != 0xffff) {
sc->sc_sensor[ASB100_SENSOR_TEMP2].value = 273150000 +
500000 * (swap16(sdata2) / 128);
sc->sc_sensor[ASB100_SENSOR_TEMP2].flags &=
~SENSOR_FINVALID;
} else {
sc->sc_sensor[ASB100_SENSOR_TEMP2].flags |=
SENSOR_FINVALID;
}
}
asbtm_banksel(sc, orig_bank, NULL);
iic_release_bus(sc->sc_tag, 0);
}
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