2005-04-16 22:20:36 +00:00
|
|
|
/*
|
|
|
|
smsc47m1.c - Part of lm_sensors, Linux kernel modules
|
|
|
|
for hardware monitoring
|
|
|
|
|
2006-10-08 20:00:44 +00:00
|
|
|
Supports the SMSC LPC47B27x, LPC47M10x, LPC47M112, LPC47M13x,
|
|
|
|
LPC47M14x, LPC47M15x, LPC47M192 and LPC47M997 Super-I/O chips.
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com>
|
|
|
|
Copyright (C) 2004 Jean Delvare <khali@linux-fr.org>
|
|
|
|
Ported to Linux 2.6 by Gabriele Gorla <gorlik@yahoo.com>
|
|
|
|
and Jean Delvare
|
|
|
|
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
|
|
it under the terms of the GNU General Public License as published by
|
|
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
|
|
(at your option) any later version.
|
|
|
|
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
GNU General Public License for more details.
|
|
|
|
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
|
|
along with this program; if not, write to the Free Software
|
|
|
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <linux/module.h>
|
|
|
|
#include <linux/slab.h>
|
|
|
|
#include <linux/ioport.h>
|
|
|
|
#include <linux/jiffies.h>
|
|
|
|
#include <linux/i2c.h>
|
[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (3/9)
Convert the 10 ISA hardware monitoring drivers (it87, lm78, pc87360,
sis5595, smsc47b397, smsc47m1, via686a, w83627hf, w83627ehf, w83781d) to
explicitely register with i2c-isa. For hybrid drivers (it87, lm78,
w83781d), we now have two separate instances of i2c_driver, one for the
I2C interface of the chip, and one for ISA interface. In the long run,
the one for ISA will be replaced with a different driver type.
At this point, all drivers are working again, except for missing
dependencies in Kconfig.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-07-19 21:51:07 +00:00
|
|
|
#include <linux/i2c-isa.h>
|
2005-07-16 01:39:18 +00:00
|
|
|
#include <linux/hwmon.h>
|
|
|
|
#include <linux/err.h>
|
2005-04-16 22:20:36 +00:00
|
|
|
#include <linux/init.h>
|
2006-01-18 22:19:26 +00:00
|
|
|
#include <linux/mutex.h>
|
2006-09-24 19:25:12 +00:00
|
|
|
#include <linux/sysfs.h>
|
2005-04-16 22:20:36 +00:00
|
|
|
#include <asm/io.h>
|
|
|
|
|
|
|
|
/* Address is autodetected, there is no default value */
|
[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (5/9)
Call the ISA chip drivers detection function directly instead of relying
on i2c_detect. The net effect is that address lists won't be handled
anymore, but they were mostly useless in the ISA case anyway (pc87360,
smsc47m1, smsc47b397 had already dropped them).
We don't need to handle multiple devices, all we may need is a way to
force a given address instead of the original one (some drivers already
do: sis5595, via686a, w83627hf), and, for drivers supporting multiple
chips, a way to force one given kind. All this may be added later on
demand, but I actually don't think there will be much demand.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-07-19 21:56:35 +00:00
|
|
|
static unsigned short address;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
/* Super-I/0 registers and commands */
|
|
|
|
|
|
|
|
#define REG 0x2e /* The register to read/write */
|
|
|
|
#define VAL 0x2f /* The value to read/write */
|
|
|
|
|
|
|
|
static inline void
|
|
|
|
superio_outb(int reg, int val)
|
|
|
|
{
|
|
|
|
outb(reg, REG);
|
|
|
|
outb(val, VAL);
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline int
|
|
|
|
superio_inb(int reg)
|
|
|
|
{
|
|
|
|
outb(reg, REG);
|
|
|
|
return inb(VAL);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* logical device for fans is 0x0A */
|
|
|
|
#define superio_select() superio_outb(0x07, 0x0A)
|
|
|
|
|
|
|
|
static inline void
|
|
|
|
superio_enter(void)
|
|
|
|
{
|
|
|
|
outb(0x55, REG);
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void
|
|
|
|
superio_exit(void)
|
|
|
|
{
|
|
|
|
outb(0xAA, REG);
|
|
|
|
}
|
|
|
|
|
|
|
|
#define SUPERIO_REG_ACT 0x30
|
|
|
|
#define SUPERIO_REG_BASE 0x60
|
|
|
|
#define SUPERIO_REG_DEVID 0x20
|
|
|
|
|
|
|
|
/* Logical device registers */
|
|
|
|
|
|
|
|
#define SMSC_EXTENT 0x80
|
|
|
|
|
|
|
|
/* nr is 0 or 1 in the macros below */
|
|
|
|
#define SMSC47M1_REG_ALARM 0x04
|
|
|
|
#define SMSC47M1_REG_TPIN(nr) (0x34 - (nr))
|
|
|
|
#define SMSC47M1_REG_PPIN(nr) (0x36 - (nr))
|
|
|
|
#define SMSC47M1_REG_PWM(nr) (0x56 + (nr))
|
|
|
|
#define SMSC47M1_REG_FANDIV 0x58
|
|
|
|
#define SMSC47M1_REG_FAN(nr) (0x59 + (nr))
|
|
|
|
#define SMSC47M1_REG_FAN_PRELOAD(nr) (0x5B + (nr))
|
|
|
|
|
|
|
|
#define MIN_FROM_REG(reg,div) ((reg)>=192 ? 0 : \
|
|
|
|
983040/((192-(reg))*(div)))
|
|
|
|
#define FAN_FROM_REG(reg,div,preload) ((reg)<=(preload) || (reg)==255 ? 0 : \
|
|
|
|
983040/(((reg)-(preload))*(div)))
|
|
|
|
#define DIV_FROM_REG(reg) (1 << (reg))
|
|
|
|
#define PWM_FROM_REG(reg) (((reg) & 0x7E) << 1)
|
|
|
|
#define PWM_EN_FROM_REG(reg) ((~(reg)) & 0x01)
|
|
|
|
#define PWM_TO_REG(reg) (((reg) >> 1) & 0x7E)
|
|
|
|
|
|
|
|
struct smsc47m1_data {
|
|
|
|
struct i2c_client client;
|
2005-07-16 01:39:18 +00:00
|
|
|
struct class_device *class_dev;
|
2006-01-18 22:19:26 +00:00
|
|
|
struct mutex lock;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2006-01-18 22:19:26 +00:00
|
|
|
struct mutex update_lock;
|
2005-04-16 22:20:36 +00:00
|
|
|
unsigned long last_updated; /* In jiffies */
|
|
|
|
|
|
|
|
u8 fan[2]; /* Register value */
|
|
|
|
u8 fan_preload[2]; /* Register value */
|
|
|
|
u8 fan_div[2]; /* Register encoding, shifted right */
|
|
|
|
u8 alarms; /* Register encoding */
|
|
|
|
u8 pwm[2]; /* Register value (bit 7 is enable) */
|
|
|
|
};
|
|
|
|
|
|
|
|
|
[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (5/9)
Call the ISA chip drivers detection function directly instead of relying
on i2c_detect. The net effect is that address lists won't be handled
anymore, but they were mostly useless in the ISA case anyway (pc87360,
smsc47m1, smsc47b397 had already dropped them).
We don't need to handle multiple devices, all we may need is a way to
force a given address instead of the original one (some drivers already
do: sis5595, via686a, w83627hf), and, for drivers supporting multiple
chips, a way to force one given kind. All this may be added later on
demand, but I actually don't think there will be much demand.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-07-19 21:56:35 +00:00
|
|
|
static int smsc47m1_detect(struct i2c_adapter *adapter);
|
2005-04-16 22:20:36 +00:00
|
|
|
static int smsc47m1_detach_client(struct i2c_client *client);
|
|
|
|
|
|
|
|
static int smsc47m1_read_value(struct i2c_client *client, u8 reg);
|
|
|
|
static void smsc47m1_write_value(struct i2c_client *client, u8 reg, u8 value);
|
|
|
|
|
|
|
|
static struct smsc47m1_data *smsc47m1_update_device(struct device *dev,
|
|
|
|
int init);
|
|
|
|
|
|
|
|
|
|
|
|
static struct i2c_driver smsc47m1_driver = {
|
2005-11-26 19:37:41 +00:00
|
|
|
.driver = {
|
2006-09-03 20:36:14 +00:00
|
|
|
.owner = THIS_MODULE,
|
2005-11-26 19:37:41 +00:00
|
|
|
.name = "smsc47m1",
|
|
|
|
},
|
[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (5/9)
Call the ISA chip drivers detection function directly instead of relying
on i2c_detect. The net effect is that address lists won't be handled
anymore, but they were mostly useless in the ISA case anyway (pc87360,
smsc47m1, smsc47b397 had already dropped them).
We don't need to handle multiple devices, all we may need is a way to
force a given address instead of the original one (some drivers already
do: sis5595, via686a, w83627hf), and, for drivers supporting multiple
chips, a way to force one given kind. All this may be added later on
demand, but I actually don't think there will be much demand.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-07-19 21:56:35 +00:00
|
|
|
.attach_adapter = smsc47m1_detect,
|
2005-04-16 22:20:36 +00:00
|
|
|
.detach_client = smsc47m1_detach_client,
|
|
|
|
};
|
|
|
|
|
|
|
|
/* nr is 0 or 1 in the callback functions below */
|
|
|
|
|
|
|
|
static ssize_t get_fan(struct device *dev, char *buf, int nr)
|
|
|
|
{
|
|
|
|
struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
|
|
|
|
/* This chip (stupidly) stops monitoring fan speed if PWM is
|
|
|
|
enabled and duty cycle is 0%. This is fine if the monitoring
|
|
|
|
and control concern the same fan, but troublesome if they are
|
|
|
|
not (which could as well happen). */
|
|
|
|
int rpm = (data->pwm[nr] & 0x7F) == 0x00 ? 0 :
|
|
|
|
FAN_FROM_REG(data->fan[nr],
|
|
|
|
DIV_FROM_REG(data->fan_div[nr]),
|
|
|
|
data->fan_preload[nr]);
|
|
|
|
return sprintf(buf, "%d\n", rpm);
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t get_fan_min(struct device *dev, char *buf, int nr)
|
|
|
|
{
|
|
|
|
struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
|
|
|
|
int rpm = MIN_FROM_REG(data->fan_preload[nr],
|
|
|
|
DIV_FROM_REG(data->fan_div[nr]));
|
|
|
|
return sprintf(buf, "%d\n", rpm);
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t get_fan_div(struct device *dev, char *buf, int nr)
|
|
|
|
{
|
|
|
|
struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
|
|
|
|
return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]));
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t get_pwm(struct device *dev, char *buf, int nr)
|
|
|
|
{
|
|
|
|
struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
|
|
|
|
return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr]));
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t get_pwm_en(struct device *dev, char *buf, int nr)
|
|
|
|
{
|
|
|
|
struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
|
|
|
|
return sprintf(buf, "%d\n", PWM_EN_FROM_REG(data->pwm[nr]));
|
|
|
|
}
|
|
|
|
|
2005-05-17 10:42:25 +00:00
|
|
|
static ssize_t get_alarms(struct device *dev, struct device_attribute *attr, char *buf)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
|
|
|
struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
|
|
|
|
return sprintf(buf, "%d\n", data->alarms);
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t set_fan_min(struct device *dev, const char *buf,
|
|
|
|
size_t count, int nr)
|
|
|
|
{
|
|
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
|
|
struct smsc47m1_data *data = i2c_get_clientdata(client);
|
|
|
|
long rpmdiv, val = simple_strtol(buf, NULL, 10);
|
|
|
|
|
2006-01-18 22:19:26 +00:00
|
|
|
mutex_lock(&data->update_lock);
|
2005-04-16 22:20:36 +00:00
|
|
|
rpmdiv = val * DIV_FROM_REG(data->fan_div[nr]);
|
|
|
|
|
|
|
|
if (983040 > 192 * rpmdiv || 2 * rpmdiv > 983040) {
|
2006-01-18 22:19:26 +00:00
|
|
|
mutex_unlock(&data->update_lock);
|
2005-04-16 22:20:36 +00:00
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
data->fan_preload[nr] = 192 - ((983040 + rpmdiv / 2) / rpmdiv);
|
|
|
|
smsc47m1_write_value(client, SMSC47M1_REG_FAN_PRELOAD(nr),
|
|
|
|
data->fan_preload[nr]);
|
2006-01-18 22:19:26 +00:00
|
|
|
mutex_unlock(&data->update_lock);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
return count;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Note: we save and restore the fan minimum here, because its value is
|
|
|
|
determined in part by the fan clock divider. This follows the principle
|
2006-06-26 16:35:02 +00:00
|
|
|
of least surprise; the user doesn't expect the fan minimum to change just
|
2005-04-16 22:20:36 +00:00
|
|
|
because the divider changed. */
|
|
|
|
static ssize_t set_fan_div(struct device *dev, const char *buf,
|
|
|
|
size_t count, int nr)
|
|
|
|
{
|
|
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
|
|
struct smsc47m1_data *data = i2c_get_clientdata(client);
|
|
|
|
|
|
|
|
long new_div = simple_strtol(buf, NULL, 10), tmp;
|
|
|
|
u8 old_div = DIV_FROM_REG(data->fan_div[nr]);
|
|
|
|
|
|
|
|
if (new_div == old_div) /* No change */
|
|
|
|
return count;
|
|
|
|
|
2006-01-18 22:19:26 +00:00
|
|
|
mutex_lock(&data->update_lock);
|
2005-04-16 22:20:36 +00:00
|
|
|
switch (new_div) {
|
|
|
|
case 1: data->fan_div[nr] = 0; break;
|
|
|
|
case 2: data->fan_div[nr] = 1; break;
|
|
|
|
case 4: data->fan_div[nr] = 2; break;
|
|
|
|
case 8: data->fan_div[nr] = 3; break;
|
|
|
|
default:
|
2006-01-18 22:19:26 +00:00
|
|
|
mutex_unlock(&data->update_lock);
|
2005-04-16 22:20:36 +00:00
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
tmp = smsc47m1_read_value(client, SMSC47M1_REG_FANDIV) & 0x0F;
|
|
|
|
tmp |= (data->fan_div[0] << 4) | (data->fan_div[1] << 6);
|
|
|
|
smsc47m1_write_value(client, SMSC47M1_REG_FANDIV, tmp);
|
|
|
|
|
|
|
|
/* Preserve fan min */
|
|
|
|
tmp = 192 - (old_div * (192 - data->fan_preload[nr])
|
|
|
|
+ new_div / 2) / new_div;
|
|
|
|
data->fan_preload[nr] = SENSORS_LIMIT(tmp, 0, 191);
|
|
|
|
smsc47m1_write_value(client, SMSC47M1_REG_FAN_PRELOAD(nr),
|
|
|
|
data->fan_preload[nr]);
|
2006-01-18 22:19:26 +00:00
|
|
|
mutex_unlock(&data->update_lock);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
return count;
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t set_pwm(struct device *dev, const char *buf,
|
|
|
|
size_t count, int nr)
|
|
|
|
{
|
|
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
|
|
struct smsc47m1_data *data = i2c_get_clientdata(client);
|
|
|
|
|
|
|
|
long val = simple_strtol(buf, NULL, 10);
|
|
|
|
|
|
|
|
if (val < 0 || val > 255)
|
|
|
|
return -EINVAL;
|
|
|
|
|
2006-01-18 22:19:26 +00:00
|
|
|
mutex_lock(&data->update_lock);
|
2005-04-16 22:20:36 +00:00
|
|
|
data->pwm[nr] &= 0x81; /* Preserve additional bits */
|
|
|
|
data->pwm[nr] |= PWM_TO_REG(val);
|
|
|
|
smsc47m1_write_value(client, SMSC47M1_REG_PWM(nr),
|
|
|
|
data->pwm[nr]);
|
2006-01-18 22:19:26 +00:00
|
|
|
mutex_unlock(&data->update_lock);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
return count;
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t set_pwm_en(struct device *dev, const char *buf,
|
|
|
|
size_t count, int nr)
|
|
|
|
{
|
|
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
|
|
struct smsc47m1_data *data = i2c_get_clientdata(client);
|
|
|
|
|
|
|
|
long val = simple_strtol(buf, NULL, 10);
|
|
|
|
|
|
|
|
if (val != 0 && val != 1)
|
|
|
|
return -EINVAL;
|
|
|
|
|
2006-01-18 22:19:26 +00:00
|
|
|
mutex_lock(&data->update_lock);
|
2005-04-16 22:20:36 +00:00
|
|
|
data->pwm[nr] &= 0xFE; /* preserve the other bits */
|
|
|
|
data->pwm[nr] |= !val;
|
|
|
|
smsc47m1_write_value(client, SMSC47M1_REG_PWM(nr),
|
|
|
|
data->pwm[nr]);
|
2006-01-18 22:19:26 +00:00
|
|
|
mutex_unlock(&data->update_lock);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
return count;
|
|
|
|
}
|
|
|
|
|
|
|
|
#define fan_present(offset) \
|
2005-05-17 10:42:25 +00:00
|
|
|
static ssize_t get_fan##offset (struct device *dev, struct device_attribute *attr, char *buf) \
|
2005-04-16 22:20:36 +00:00
|
|
|
{ \
|
|
|
|
return get_fan(dev, buf, offset - 1); \
|
|
|
|
} \
|
2005-05-17 10:42:25 +00:00
|
|
|
static ssize_t get_fan##offset##_min (struct device *dev, struct device_attribute *attr, char *buf) \
|
2005-04-16 22:20:36 +00:00
|
|
|
{ \
|
|
|
|
return get_fan_min(dev, buf, offset - 1); \
|
|
|
|
} \
|
2005-05-17 10:42:25 +00:00
|
|
|
static ssize_t set_fan##offset##_min (struct device *dev, struct device_attribute *attr, \
|
2005-04-16 22:20:36 +00:00
|
|
|
const char *buf, size_t count) \
|
|
|
|
{ \
|
|
|
|
return set_fan_min(dev, buf, count, offset - 1); \
|
|
|
|
} \
|
2005-05-17 10:42:25 +00:00
|
|
|
static ssize_t get_fan##offset##_div (struct device *dev, struct device_attribute *attr, char *buf) \
|
2005-04-16 22:20:36 +00:00
|
|
|
{ \
|
|
|
|
return get_fan_div(dev, buf, offset - 1); \
|
|
|
|
} \
|
2005-05-17 10:42:25 +00:00
|
|
|
static ssize_t set_fan##offset##_div (struct device *dev, struct device_attribute *attr, \
|
2005-04-16 22:20:36 +00:00
|
|
|
const char *buf, size_t count) \
|
|
|
|
{ \
|
|
|
|
return set_fan_div(dev, buf, count, offset - 1); \
|
|
|
|
} \
|
2005-05-17 10:42:25 +00:00
|
|
|
static ssize_t get_pwm##offset (struct device *dev, struct device_attribute *attr, char *buf) \
|
2005-04-16 22:20:36 +00:00
|
|
|
{ \
|
|
|
|
return get_pwm(dev, buf, offset - 1); \
|
|
|
|
} \
|
2005-05-17 10:42:25 +00:00
|
|
|
static ssize_t set_pwm##offset (struct device *dev, struct device_attribute *attr, \
|
2005-04-16 22:20:36 +00:00
|
|
|
const char *buf, size_t count) \
|
|
|
|
{ \
|
|
|
|
return set_pwm(dev, buf, count, offset - 1); \
|
|
|
|
} \
|
2005-05-17 10:42:25 +00:00
|
|
|
static ssize_t get_pwm##offset##_en (struct device *dev, struct device_attribute *attr, char *buf) \
|
2005-04-16 22:20:36 +00:00
|
|
|
{ \
|
|
|
|
return get_pwm_en(dev, buf, offset - 1); \
|
|
|
|
} \
|
2005-05-17 10:42:25 +00:00
|
|
|
static ssize_t set_pwm##offset##_en (struct device *dev, struct device_attribute *attr, \
|
2005-04-16 22:20:36 +00:00
|
|
|
const char *buf, size_t count) \
|
|
|
|
{ \
|
|
|
|
return set_pwm_en(dev, buf, count, offset - 1); \
|
|
|
|
} \
|
|
|
|
static DEVICE_ATTR(fan##offset##_input, S_IRUGO, get_fan##offset, \
|
|
|
|
NULL); \
|
|
|
|
static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
|
|
|
|
get_fan##offset##_min, set_fan##offset##_min); \
|
|
|
|
static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \
|
|
|
|
get_fan##offset##_div, set_fan##offset##_div); \
|
|
|
|
static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \
|
|
|
|
get_pwm##offset, set_pwm##offset); \
|
|
|
|
static DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \
|
|
|
|
get_pwm##offset##_en, set_pwm##offset##_en);
|
|
|
|
|
|
|
|
fan_present(1);
|
|
|
|
fan_present(2);
|
|
|
|
|
|
|
|
static DEVICE_ATTR(alarms, S_IRUGO, get_alarms, NULL);
|
|
|
|
|
2006-09-24 19:25:12 +00:00
|
|
|
/* Almost all sysfs files may or may not be created depending on the chip
|
|
|
|
setup so we create them individually. It is still convenient to define a
|
|
|
|
group to remove them all at once. */
|
|
|
|
static struct attribute *smsc47m1_attributes[] = {
|
|
|
|
&dev_attr_fan1_input.attr,
|
|
|
|
&dev_attr_fan1_min.attr,
|
|
|
|
&dev_attr_fan1_div.attr,
|
|
|
|
&dev_attr_fan2_input.attr,
|
|
|
|
&dev_attr_fan2_min.attr,
|
|
|
|
&dev_attr_fan2_div.attr,
|
|
|
|
|
|
|
|
&dev_attr_pwm1.attr,
|
|
|
|
&dev_attr_pwm1_enable.attr,
|
|
|
|
&dev_attr_pwm2.attr,
|
|
|
|
&dev_attr_pwm2_enable.attr,
|
|
|
|
|
|
|
|
&dev_attr_alarms.attr,
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
|
|
|
|
static const struct attribute_group smsc47m1_group = {
|
|
|
|
.attrs = smsc47m1_attributes,
|
|
|
|
};
|
|
|
|
|
2005-07-27 19:32:02 +00:00
|
|
|
static int __init smsc47m1_find(unsigned short *addr)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
|
|
|
u8 val;
|
|
|
|
|
|
|
|
superio_enter();
|
|
|
|
val = superio_inb(SUPERIO_REG_DEVID);
|
|
|
|
|
|
|
|
/*
|
2006-10-08 20:00:44 +00:00
|
|
|
* SMSC LPC47M10x/LPC47M112/LPC47M13x (device id 0x59), LPC47M14x
|
|
|
|
* (device id 0x5F) and LPC47B27x (device id 0x51) have fan control.
|
2005-04-16 22:20:36 +00:00
|
|
|
* The LPC47M15x and LPC47M192 chips "with hardware monitoring block"
|
2005-04-26 20:09:43 +00:00
|
|
|
* can do much more besides (device id 0x60).
|
2005-10-26 20:21:24 +00:00
|
|
|
* The LPC47M997 is undocumented, but seems to be compatible with
|
|
|
|
* the LPC47M192, and has the same device id.
|
2005-04-16 22:20:36 +00:00
|
|
|
*/
|
|
|
|
if (val == 0x51)
|
2005-04-26 20:09:43 +00:00
|
|
|
printk(KERN_INFO "smsc47m1: Found SMSC LPC47B27x\n");
|
2005-04-16 22:20:36 +00:00
|
|
|
else if (val == 0x59)
|
2006-10-08 20:00:44 +00:00
|
|
|
printk(KERN_INFO "smsc47m1: Found SMSC "
|
|
|
|
"LPC47M10x/LPC47M112/LPC47M13x\n");
|
2005-04-16 22:20:36 +00:00
|
|
|
else if (val == 0x5F)
|
2005-04-26 20:09:43 +00:00
|
|
|
printk(KERN_INFO "smsc47m1: Found SMSC LPC47M14x\n");
|
|
|
|
else if (val == 0x60)
|
2005-10-26 20:21:24 +00:00
|
|
|
printk(KERN_INFO "smsc47m1: Found SMSC "
|
|
|
|
"LPC47M15x/LPC47M192/LPC47M997\n");
|
2005-04-16 22:20:36 +00:00
|
|
|
else {
|
|
|
|
superio_exit();
|
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
|
|
|
|
superio_select();
|
[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (5/9)
Call the ISA chip drivers detection function directly instead of relying
on i2c_detect. The net effect is that address lists won't be handled
anymore, but they were mostly useless in the ISA case anyway (pc87360,
smsc47m1, smsc47b397 had already dropped them).
We don't need to handle multiple devices, all we may need is a way to
force a given address instead of the original one (some drivers already
do: sis5595, via686a, w83627hf), and, for drivers supporting multiple
chips, a way to force one given kind. All this may be added later on
demand, but I actually don't think there will be much demand.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-07-19 21:56:35 +00:00
|
|
|
*addr = (superio_inb(SUPERIO_REG_BASE) << 8)
|
|
|
|
| superio_inb(SUPERIO_REG_BASE + 1);
|
2005-04-16 22:20:36 +00:00
|
|
|
val = superio_inb(SUPERIO_REG_ACT);
|
[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (5/9)
Call the ISA chip drivers detection function directly instead of relying
on i2c_detect. The net effect is that address lists won't be handled
anymore, but they were mostly useless in the ISA case anyway (pc87360,
smsc47m1, smsc47b397 had already dropped them).
We don't need to handle multiple devices, all we may need is a way to
force a given address instead of the original one (some drivers already
do: sis5595, via686a, w83627hf), and, for drivers supporting multiple
chips, a way to force one given kind. All this may be added later on
demand, but I actually don't think there will be much demand.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-07-19 21:56:35 +00:00
|
|
|
if (*addr == 0 || (val & 0x01) == 0) {
|
2005-04-16 22:20:36 +00:00
|
|
|
printk(KERN_INFO "smsc47m1: Device is disabled, will not use\n");
|
|
|
|
superio_exit();
|
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
|
|
|
|
superio_exit();
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (5/9)
Call the ISA chip drivers detection function directly instead of relying
on i2c_detect. The net effect is that address lists won't be handled
anymore, but they were mostly useless in the ISA case anyway (pc87360,
smsc47m1, smsc47b397 had already dropped them).
We don't need to handle multiple devices, all we may need is a way to
force a given address instead of the original one (some drivers already
do: sis5595, via686a, w83627hf), and, for drivers supporting multiple
chips, a way to force one given kind. All this may be added later on
demand, but I actually don't think there will be much demand.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-07-19 21:56:35 +00:00
|
|
|
static int smsc47m1_detect(struct i2c_adapter *adapter)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
|
|
|
struct i2c_client *new_client;
|
|
|
|
struct smsc47m1_data *data;
|
|
|
|
int err = 0;
|
|
|
|
int fan1, fan2, pwm1, pwm2;
|
|
|
|
|
2005-11-26 19:37:41 +00:00
|
|
|
if (!request_region(address, SMSC_EXTENT, smsc47m1_driver.driver.name)) {
|
2005-04-16 22:20:36 +00:00
|
|
|
dev_err(&adapter->dev, "Region 0x%x already in use!\n", address);
|
|
|
|
return -EBUSY;
|
|
|
|
}
|
|
|
|
|
2005-10-17 21:08:32 +00:00
|
|
|
if (!(data = kzalloc(sizeof(struct smsc47m1_data), GFP_KERNEL))) {
|
2005-04-16 22:20:36 +00:00
|
|
|
err = -ENOMEM;
|
|
|
|
goto error_release;
|
|
|
|
}
|
|
|
|
|
|
|
|
new_client = &data->client;
|
|
|
|
i2c_set_clientdata(new_client, data);
|
|
|
|
new_client->addr = address;
|
2006-01-18 22:19:26 +00:00
|
|
|
mutex_init(&data->lock);
|
2005-04-16 22:20:36 +00:00
|
|
|
new_client->adapter = adapter;
|
|
|
|
new_client->driver = &smsc47m1_driver;
|
|
|
|
new_client->flags = 0;
|
|
|
|
|
|
|
|
strlcpy(new_client->name, "smsc47m1", I2C_NAME_SIZE);
|
2006-01-18 22:19:26 +00:00
|
|
|
mutex_init(&data->update_lock);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
/* If no function is properly configured, there's no point in
|
|
|
|
actually registering the chip. */
|
|
|
|
fan1 = (smsc47m1_read_value(new_client, SMSC47M1_REG_TPIN(0)) & 0x05)
|
|
|
|
== 0x05;
|
|
|
|
fan2 = (smsc47m1_read_value(new_client, SMSC47M1_REG_TPIN(1)) & 0x05)
|
|
|
|
== 0x05;
|
|
|
|
pwm1 = (smsc47m1_read_value(new_client, SMSC47M1_REG_PPIN(0)) & 0x05)
|
|
|
|
== 0x04;
|
|
|
|
pwm2 = (smsc47m1_read_value(new_client, SMSC47M1_REG_PPIN(1)) & 0x05)
|
|
|
|
== 0x04;
|
|
|
|
if (!(fan1 || fan2 || pwm1 || pwm2)) {
|
2006-08-28 12:22:34 +00:00
|
|
|
dev_warn(&adapter->dev, "Device at 0x%x is not configured, "
|
|
|
|
"will not use\n", new_client->addr);
|
2005-04-16 22:20:36 +00:00
|
|
|
err = -ENODEV;
|
|
|
|
goto error_free;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((err = i2c_attach_client(new_client)))
|
|
|
|
goto error_free;
|
|
|
|
|
|
|
|
/* Some values (fan min, clock dividers, pwm registers) may be
|
|
|
|
needed before any update is triggered, so we better read them
|
|
|
|
at least once here. We don't usually do it that way, but in
|
|
|
|
this particular case, manually reading 5 registers out of 8
|
|
|
|
doesn't make much sense and we're better using the existing
|
|
|
|
function. */
|
|
|
|
smsc47m1_update_device(&new_client->dev, 1);
|
|
|
|
|
2005-07-16 01:39:18 +00:00
|
|
|
/* Register sysfs hooks */
|
2005-04-16 22:20:36 +00:00
|
|
|
if (fan1) {
|
2006-09-24 19:25:12 +00:00
|
|
|
if ((err = device_create_file(&new_client->dev,
|
|
|
|
&dev_attr_fan1_input))
|
|
|
|
|| (err = device_create_file(&new_client->dev,
|
|
|
|
&dev_attr_fan1_min))
|
|
|
|
|| (err = device_create_file(&new_client->dev,
|
|
|
|
&dev_attr_fan1_div)))
|
|
|
|
goto error_remove_files;
|
2005-04-16 22:20:36 +00:00
|
|
|
} else
|
|
|
|
dev_dbg(&new_client->dev, "Fan 1 not enabled by hardware, "
|
|
|
|
"skipping\n");
|
|
|
|
|
|
|
|
if (fan2) {
|
2006-09-24 19:25:12 +00:00
|
|
|
if ((err = device_create_file(&new_client->dev,
|
|
|
|
&dev_attr_fan2_input))
|
|
|
|
|| (err = device_create_file(&new_client->dev,
|
|
|
|
&dev_attr_fan2_min))
|
|
|
|
|| (err = device_create_file(&new_client->dev,
|
|
|
|
&dev_attr_fan2_div)))
|
|
|
|
goto error_remove_files;
|
2005-04-16 22:20:36 +00:00
|
|
|
} else
|
|
|
|
dev_dbg(&new_client->dev, "Fan 2 not enabled by hardware, "
|
|
|
|
"skipping\n");
|
|
|
|
|
|
|
|
if (pwm1) {
|
2006-09-24 19:25:12 +00:00
|
|
|
if ((err = device_create_file(&new_client->dev,
|
|
|
|
&dev_attr_pwm1))
|
|
|
|
|| (err = device_create_file(&new_client->dev,
|
|
|
|
&dev_attr_pwm1_enable)))
|
|
|
|
goto error_remove_files;
|
2005-04-16 22:20:36 +00:00
|
|
|
} else
|
|
|
|
dev_dbg(&new_client->dev, "PWM 1 not enabled by hardware, "
|
|
|
|
"skipping\n");
|
|
|
|
if (pwm2) {
|
2006-09-24 19:25:12 +00:00
|
|
|
if ((err = device_create_file(&new_client->dev,
|
|
|
|
&dev_attr_pwm2))
|
|
|
|
|| (err = device_create_file(&new_client->dev,
|
|
|
|
&dev_attr_pwm2_enable)))
|
|
|
|
goto error_remove_files;
|
2005-04-16 22:20:36 +00:00
|
|
|
} else
|
|
|
|
dev_dbg(&new_client->dev, "PWM 2 not enabled by hardware, "
|
|
|
|
"skipping\n");
|
|
|
|
|
2006-09-24 19:25:12 +00:00
|
|
|
if ((err = device_create_file(&new_client->dev, &dev_attr_alarms)))
|
|
|
|
goto error_remove_files;
|
|
|
|
|
|
|
|
data->class_dev = hwmon_device_register(&new_client->dev);
|
|
|
|
if (IS_ERR(data->class_dev)) {
|
|
|
|
err = PTR_ERR(data->class_dev);
|
|
|
|
goto error_remove_files;
|
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
2006-09-24 19:25:12 +00:00
|
|
|
error_remove_files:
|
|
|
|
sysfs_remove_group(&new_client->dev.kobj, &smsc47m1_group);
|
2005-07-16 01:39:18 +00:00
|
|
|
i2c_detach_client(new_client);
|
2005-04-16 22:20:36 +00:00
|
|
|
error_free:
|
2005-08-25 21:49:14 +00:00
|
|
|
kfree(data);
|
2005-04-16 22:20:36 +00:00
|
|
|
error_release:
|
|
|
|
release_region(address, SMSC_EXTENT);
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int smsc47m1_detach_client(struct i2c_client *client)
|
|
|
|
{
|
2005-07-16 01:39:18 +00:00
|
|
|
struct smsc47m1_data *data = i2c_get_clientdata(client);
|
2005-04-16 22:20:36 +00:00
|
|
|
int err;
|
|
|
|
|
2005-07-16 01:39:18 +00:00
|
|
|
hwmon_device_unregister(data->class_dev);
|
2006-09-24 19:25:12 +00:00
|
|
|
sysfs_remove_group(&client->dev.kobj, &smsc47m1_group);
|
2005-07-16 01:39:18 +00:00
|
|
|
|
2005-07-27 20:14:49 +00:00
|
|
|
if ((err = i2c_detach_client(client)))
|
2005-04-16 22:20:36 +00:00
|
|
|
return err;
|
|
|
|
|
|
|
|
release_region(client->addr, SMSC_EXTENT);
|
2005-07-16 01:39:18 +00:00
|
|
|
kfree(data);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int smsc47m1_read_value(struct i2c_client *client, u8 reg)
|
|
|
|
{
|
|
|
|
int res;
|
|
|
|
|
2006-01-18 22:19:26 +00:00
|
|
|
mutex_lock(&((struct smsc47m1_data *) i2c_get_clientdata(client))->lock);
|
2005-04-16 22:20:36 +00:00
|
|
|
res = inb_p(client->addr + reg);
|
2006-01-18 22:19:26 +00:00
|
|
|
mutex_unlock(&((struct smsc47m1_data *) i2c_get_clientdata(client))->lock);
|
2005-04-16 22:20:36 +00:00
|
|
|
return res;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void smsc47m1_write_value(struct i2c_client *client, u8 reg, u8 value)
|
|
|
|
{
|
2006-01-18 22:19:26 +00:00
|
|
|
mutex_lock(&((struct smsc47m1_data *) i2c_get_clientdata(client))->lock);
|
2005-04-16 22:20:36 +00:00
|
|
|
outb_p(value, client->addr + reg);
|
2006-01-18 22:19:26 +00:00
|
|
|
mutex_unlock(&((struct smsc47m1_data *) i2c_get_clientdata(client))->lock);
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static struct smsc47m1_data *smsc47m1_update_device(struct device *dev,
|
|
|
|
int init)
|
|
|
|
{
|
|
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
|
|
struct smsc47m1_data *data = i2c_get_clientdata(client);
|
|
|
|
|
2006-01-18 22:19:26 +00:00
|
|
|
mutex_lock(&data->update_lock);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
if (time_after(jiffies, data->last_updated + HZ + HZ / 2) || init) {
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
|
|
data->fan[i] = smsc47m1_read_value(client,
|
|
|
|
SMSC47M1_REG_FAN(i));
|
|
|
|
data->fan_preload[i] = smsc47m1_read_value(client,
|
|
|
|
SMSC47M1_REG_FAN_PRELOAD(i));
|
|
|
|
data->pwm[i] = smsc47m1_read_value(client,
|
|
|
|
SMSC47M1_REG_PWM(i));
|
|
|
|
}
|
|
|
|
|
|
|
|
i = smsc47m1_read_value(client, SMSC47M1_REG_FANDIV);
|
|
|
|
data->fan_div[0] = (i >> 4) & 0x03;
|
|
|
|
data->fan_div[1] = i >> 6;
|
|
|
|
|
|
|
|
data->alarms = smsc47m1_read_value(client,
|
|
|
|
SMSC47M1_REG_ALARM) >> 6;
|
|
|
|
/* Clear alarms if needed */
|
|
|
|
if (data->alarms)
|
|
|
|
smsc47m1_write_value(client, SMSC47M1_REG_ALARM, 0xC0);
|
|
|
|
|
|
|
|
data->last_updated = jiffies;
|
|
|
|
}
|
|
|
|
|
2006-01-18 22:19:26 +00:00
|
|
|
mutex_unlock(&data->update_lock);
|
2005-04-16 22:20:36 +00:00
|
|
|
return data;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int __init sm_smsc47m1_init(void)
|
|
|
|
{
|
[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (5/9)
Call the ISA chip drivers detection function directly instead of relying
on i2c_detect. The net effect is that address lists won't be handled
anymore, but they were mostly useless in the ISA case anyway (pc87360,
smsc47m1, smsc47b397 had already dropped them).
We don't need to handle multiple devices, all we may need is a way to
force a given address instead of the original one (some drivers already
do: sis5595, via686a, w83627hf), and, for drivers supporting multiple
chips, a way to force one given kind. All this may be added later on
demand, but I actually don't think there will be much demand.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-07-19 21:56:35 +00:00
|
|
|
if (smsc47m1_find(&address)) {
|
2005-04-16 22:20:36 +00:00
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
|
[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (3/9)
Convert the 10 ISA hardware monitoring drivers (it87, lm78, pc87360,
sis5595, smsc47b397, smsc47m1, via686a, w83627hf, w83627ehf, w83781d) to
explicitely register with i2c-isa. For hybrid drivers (it87, lm78,
w83781d), we now have two separate instances of i2c_driver, one for the
I2C interface of the chip, and one for ISA interface. In the long run,
the one for ISA will be replaced with a different driver type.
At this point, all drivers are working again, except for missing
dependencies in Kconfig.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-07-19 21:51:07 +00:00
|
|
|
return i2c_isa_add_driver(&smsc47m1_driver);
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void __exit sm_smsc47m1_exit(void)
|
|
|
|
{
|
[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (3/9)
Convert the 10 ISA hardware monitoring drivers (it87, lm78, pc87360,
sis5595, smsc47b397, smsc47m1, via686a, w83627hf, w83627ehf, w83781d) to
explicitely register with i2c-isa. For hybrid drivers (it87, lm78,
w83781d), we now have two separate instances of i2c_driver, one for the
I2C interface of the chip, and one for ISA interface. In the long run,
the one for ISA will be replaced with a different driver type.
At this point, all drivers are working again, except for missing
dependencies in Kconfig.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-07-19 21:51:07 +00:00
|
|
|
i2c_isa_del_driver(&smsc47m1_driver);
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
MODULE_AUTHOR("Mark D. Studebaker <mdsxyz123@yahoo.com>");
|
|
|
|
MODULE_DESCRIPTION("SMSC LPC47M1xx fan sensors driver");
|
|
|
|
MODULE_LICENSE("GPL");
|
|
|
|
|
|
|
|
module_init(sm_smsc47m1_init);
|
|
|
|
module_exit(sm_smsc47m1_exit);
|