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Return-Path: roman.hunt@comcast.net
Delivery-Date: Sun Apr 9 18:44:07 2006
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From: Roman Hunt <roman.hunt@comcast.net>
To: deraadt@openbsd.org, roman.hunt@comcast.net
Subject: Here is sch5017.c the driver for the SCH5017 I2C chip
Sorry for the delay in sending this. I will send the patches to GENERIC
and files.i2c seperately.
/usr/src/sys/dev/i2c/sch5017.c:
/*
* Copyright (c) 2006 Roman Hunt
*
* 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>
/*
* SCH5017 Registers
*/
#define SCH5017_VCCP 0x21
#define SCH5017_VCC 0x22
#define SCH5017_5V 0x23
#define SCH5017_12V 0x24
#define SCH5017_RTEMP1 0x25
#define SCH5017_ITEMP 0x26
#define SCH5017_RTEMP2 0x27
#define SCH5017_FAN1_LSB 0x28
#define SCH5017_FAN1_MSB 0x29
#define SCH5017_FAN2_LSB 0x2A
#define SCH5017_FAN2_MSB 0x2B
#define SCH5017_FAN3_LSB 0x2C
#define SCH5017_FAN3_MSB 0x2D
#define SCH5017_FAN4_LSB 0x2E
#define SCH5017_FAN4_MSB 0x2F
#define SCH5017_VERSION 0x3F
/*
* Sensors
*/
#define SCHENV_VCCP 0
#define SCHENV_VCC 1
#define SCHENV_5V 2
#define SCHENV_12V 3
#define SCHENV_RTEMP1 4
#define SCHENV_ITEMP 5
#define SCHENV_RTEMP2 6
#define SCHENV_FAN1 7
#define SCHENV_FAN2 8
#define SCHENV_FAN3 9
#define SCHENV_FAN4 10
#define SCHENV_SENSOR_COUNT 11
struct schenv_softc {
struct device sc_dev;
i2c_tag_t sc_tag;
i2c_addr_t sc_addr;
struct sensor sc_sensor[SCHENV_SENSOR_COUNT];
};
int schenv_match(struct device *, void *, void *);
void schenv_attach(struct device *, struct device *, void *);
void schenv_refresh(void *);
struct cfattach schenv_ca = {
sizeof(struct schenv_softc), schenv_match, schenv_attach
};
struct cfdriver schenv_cd = {
NULL, "schenv", DV_DULL
};
int
schenv_match(struct device *parent, void *match, void *aux)
{
struct i2c_attach_args *ia = aux;
if (strcmp(ia->ia_name, "sch5017") == 0)
return (1);
else
return (0);
}
void
schenv_attach(struct device *parent, struct device *self, void *aux)
{
struct schenv_softc *sc = (struct schenv_softc *)self;
struct i2c_attach_args *ia = aux;
u_int8_t cmd, data;
int i;
sc->sc_tag = ia->ia_tag;
sc->sc_addr = ia->ia_addr;
iic_acquire_bus(sc->sc_tag, 0);
cmd = SCH5017_VERSION;
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 read revision register\n");
return;
}
printf(": %s rev %x", ia->ia_name, (data >> 4));
iic_release_bus(sc->sc_tag, 0);
/*
* Initialize sensors
*/
for (i = 0; i < SCHENV_SENSOR_COUNT; i++)
strlcpy(sc->sc_sensor[i].device, sc->sc_dev.dv_xname,
sizeof(sc->sc_sensor[i].device));
sc->sc_sensor[SCHENV_VCCP].type = SENSOR_VOLTS_DC;
strlcpy(sc->sc_sensor[SCHENV_VCCP].desc, "Vccp",
sizeof(sc->sc_sensor[SCHENV_VCCP].desc));
sc->sc_sensor[SCHENV_VCC].type = SENSOR_VOLTS_DC;
strlcpy(sc->sc_sensor[SCHENV_VCC].desc, "Vcc",
sizeof(sc->sc_sensor[SCHENV_VCC].desc));
sc->sc_sensor[SCHENV_5V].type = SENSOR_VOLTS_DC;
strlcpy(sc->sc_sensor[SCHENV_5V].desc, "+5Vin",
sizeof(sc->sc_sensor[SCHENV_5V].desc));
sc->sc_sensor[SCHENV_12V].type = SENSOR_VOLTS_DC;
strlcpy(sc->sc_sensor[SCHENV_12V].desc, "+12Vin",
sizeof(sc->sc_sensor[SCHENV_12V].desc));
sc->sc_sensor[SCHENV_RTEMP1].type = SENSOR_TEMP;
strlcpy(sc->sc_sensor[SCHENV_RTEMP1].desc, "Ext. Temp. 1",
sizeof(sc->sc_sensor[SCHENV_RTEMP1].desc));
sc->sc_sensor[SCHENV_ITEMP].type = SENSOR_TEMP;
strlcpy(sc->sc_sensor[SCHENV_ITEMP].desc, "Int. Temp.",
sizeof(sc->sc_sensor[SCHENV_ITEMP].desc));
sc->sc_sensor[SCHENV_RTEMP2].type = SENSOR_TEMP;
strlcpy(sc->sc_sensor[SCHENV_RTEMP2].desc, "Ext. Temp. 2",
sizeof(sc->sc_sensor[SCHENV_RTEMP1].desc));
sc->sc_sensor[SCHENV_FAN1].type = SENSOR_FANRPM;
strlcpy(sc->sc_sensor[SCHENV_FAN1].desc, "FAN1",
sizeof(sc->sc_sensor[SCHENV_FAN1].desc));
sc->sc_sensor[SCHENV_FAN2].type = SENSOR_FANRPM;
strlcpy(sc->sc_sensor[SCHENV_FAN2].desc, "FAN2",
sizeof(sc->sc_sensor[SCHENV_FAN2].desc));
sc->sc_sensor[SCHENV_FAN3].type = SENSOR_FANRPM;
strlcpy(sc->sc_sensor[SCHENV_FAN3].desc, "FAN3",
sizeof(sc->sc_sensor[SCHENV_FAN3].desc));
sc->sc_sensor[SCHENV_FAN4].type = SENSOR_FANRPM;
strlcpy(sc->sc_sensor[SCHENV_FAN4].desc, "FAN4",
sizeof(sc->sc_sensor[SCHENV_FAN4].desc));
if (sensor_task_register(sc, schenv_refresh, 5)) {
printf(", unable to register update task\n");
return;
}
for (i = 0; i < SCHENV_SENSOR_COUNT; i++)
sensor_add(&sc->sc_sensor[i]);
printf("\n");
}
void
schenv_refresh(void *arg)
{
struct schenv_softc *sc = arg;
u_int8_t cmd, data, data2;
u_int16_t fanword;
int sensor;
iic_acquire_bus(sc->sc_tag, 0);
for (sensor = 0; sensor < SCHENV_SENSOR_COUNT; sensor++) {
cmd = SCH5017_VCCP + sensor;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0)) {
sc->sc_sensor[sensor].flags |= SENSOR_FINVALID;
continue;
}
sc->sc_sensor[sensor].flags &= ~SENSOR_FINVALID;
switch (sensor) {
case SCHENV_VCCP:
sc->sc_sensor[sensor].value = 3000000 / 256 * data;
break;
case SCHENV_VCC:
sc->sc_sensor[sensor].value = 4380000 / 256 * data;
break;
case SCHENV_5V:
sc->sc_sensor[sensor].value = 6640000 / 256 * data;
break;
case SCHENV_12V:
sc->sc_sensor[sensor].value = 16000000 / 256 * data;
break;
case SCHENV_RTEMP1:
/* FALLTHROUGH */
case SCHENV_ITEMP:
/* FALLTHROUGH */
case SCHENV_RTEMP2:
if (data == 0x80) {
sc->sc_sensor[sensor].flags |= SENSOR_FINVALID;
break;
}
sc->sc_sensor[sensor].value =
(int8_t)data * 1000000 + 273150000;
break;
case SCHENV_FAN1:
cmd = SCH5017_FAN1_LSB;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data,
sizeof data, 0)) {
sc->sc_sensor[sensor].flags |=
SENSOR_FINVALID;
break;
}
cmd = SCH5017_FAN1_MSB;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data2,
sizeof data2, 0)) {
sc->sc_sensor[sensor].flags |=
SENSOR_FINVALID;
break;
}
fanword = data2;
fanword = fanword << 8;
fanword |= data;
if (fanword == 0xFFFF) {
sc->sc_sensor[sensor].flags |= SENSOR_FINVALID;
break;
}
sc->sc_sensor[sensor].value = fanword;
break;
case SCHENV_FAN2:
cmd = SCH5017_FAN2_LSB;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data,
sizeof data, 0)) {
sc->sc_sensor[sensor].flags |=
SENSOR_FINVALID;
break;
}
cmd = SCH5017_FAN2_MSB;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data2,
sizeof data2, 0)) {
sc->sc_sensor[sensor].flags |=
SENSOR_FINVALID;
break;
}
fanword = data2;
fanword = fanword << 8;
fanword |= data;
if (fanword == 0xFFFF) {
sc->sc_sensor[sensor].flags |= SENSOR_FINVALID;
break;
}
sc->sc_sensor[sensor].value = fanword;
break;
case SCHENV_FAN3:
cmd = SCH5017_FAN3_LSB;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data,
sizeof data, 0)) {
sc->sc_sensor[sensor].flags |=
SENSOR_FINVALID;
break;
}
cmd = SCH5017_FAN3_MSB;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data2,
sizeof data2, 0)) {
sc->sc_sensor[sensor].flags |=
SENSOR_FINVALID;
break;
}
fanword = data2;
fanword = fanword << 8;
fanword |= data;
if (fanword == 0xFFFF) {
sc->sc_sensor[sensor].flags |= SENSOR_FINVALID;
break;
}
sc->sc_sensor[sensor].value = fanword;
break;
case SCHENV_FAN4:
cmd = SCH5017_FAN4_LSB;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data,
sizeof data, 0)) {
sc->sc_sensor[sensor].flags |=
SENSOR_FINVALID;
break;
}
cmd = SCH5017_FAN4_MSB;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data2,
sizeof data2, 0)) {
sc->sc_sensor[sensor].flags |=
SENSOR_FINVALID;
break;
}
fanword = data2;
fanword = fanword << 8;
fanword |= data;
if (fanword == 0xFFFF) {
sc->sc_sensor[sensor].flags |= SENSOR_FINVALID;
break;
}
sc->sc_sensor[sensor].value = fanword;
break;
default:
sc->sc_sensor[sensor].flags |= SENSOR_FINVALID;
break;
}
}
iic_release_bus(sc->sc_tag, 0);
}
|
