c3b327d60b
All bits in the values read from registers to be used for the next write were getting overwritten, avoid doing so to not mess with the current configuration. Signed-off-by: Guillem Jover <guillem@hadrons.org> Cc: Riku Voipio <riku.voipio@iki.fi> Cc: stable@kernel.org Signed-off-by: Jean Delvare <khali@linux-fr.org>
717 lines
21 KiB
C
717 lines
21 KiB
C
/*
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* f75375s.c - driver for the Fintek F75375/SP and F75373
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* hardware monitoring features
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* Copyright (C) 2006-2007 Riku Voipio
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*
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* Datasheets available at:
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*
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* f75375:
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* http://www.fintek.com.tw/files/productfiles/2005111152950.pdf
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*
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* f75373:
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* http://www.fintek.com.tw/files/productfiles/2005111153128.pdf
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#include <linux/module.h>
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#include <linux/jiffies.h>
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#include <linux/hwmon.h>
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#include <linux/hwmon-sysfs.h>
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#include <linux/i2c.h>
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#include <linux/err.h>
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#include <linux/mutex.h>
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#include <linux/f75375s.h>
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#include <linux/slab.h>
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/* Addresses to scan */
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static const unsigned short normal_i2c[] = { 0x2d, 0x2e, I2C_CLIENT_END };
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enum chips { f75373, f75375 };
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/* Fintek F75375 registers */
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#define F75375_REG_CONFIG0 0x0
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#define F75375_REG_CONFIG1 0x1
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#define F75375_REG_CONFIG2 0x2
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#define F75375_REG_CONFIG3 0x3
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#define F75375_REG_ADDR 0x4
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#define F75375_REG_INTR 0x31
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#define F75375_CHIP_ID 0x5A
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#define F75375_REG_VERSION 0x5C
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#define F75375_REG_VENDOR 0x5D
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#define F75375_REG_FAN_TIMER 0x60
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#define F75375_REG_VOLT(nr) (0x10 + (nr))
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#define F75375_REG_VOLT_HIGH(nr) (0x20 + (nr) * 2)
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#define F75375_REG_VOLT_LOW(nr) (0x21 + (nr) * 2)
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#define F75375_REG_TEMP(nr) (0x14 + (nr))
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#define F75375_REG_TEMP_HIGH(nr) (0x28 + (nr) * 2)
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#define F75375_REG_TEMP_HYST(nr) (0x29 + (nr) * 2)
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#define F75375_REG_FAN(nr) (0x16 + (nr) * 2)
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#define F75375_REG_FAN_MIN(nr) (0x2C + (nr) * 2)
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#define F75375_REG_FAN_FULL(nr) (0x70 + (nr) * 0x10)
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#define F75375_REG_FAN_PWM_DUTY(nr) (0x76 + (nr) * 0x10)
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#define F75375_REG_FAN_PWM_CLOCK(nr) (0x7D + (nr) * 0x10)
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#define F75375_REG_FAN_EXP(nr) (0x74 + (nr) * 0x10)
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#define F75375_REG_FAN_B_TEMP(nr, step) ((0xA0 + (nr) * 0x10) + (step))
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#define F75375_REG_FAN_B_SPEED(nr, step) \
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((0xA5 + (nr) * 0x10) + (step) * 2)
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#define F75375_REG_PWM1_RAISE_DUTY 0x69
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#define F75375_REG_PWM2_RAISE_DUTY 0x6A
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#define F75375_REG_PWM1_DROP_DUTY 0x6B
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#define F75375_REG_PWM2_DROP_DUTY 0x6C
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#define FAN_CTRL_LINEAR(nr) (4 + nr)
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#define FAN_CTRL_MODE(nr) (4 + ((nr) * 2))
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/*
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* Data structures and manipulation thereof
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*/
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struct f75375_data {
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unsigned short addr;
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struct device *hwmon_dev;
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const char *name;
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int kind;
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struct mutex update_lock; /* protect register access */
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char valid;
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unsigned long last_updated; /* In jiffies */
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unsigned long last_limits; /* In jiffies */
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/* Register values */
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u8 in[4];
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u8 in_max[4];
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u8 in_min[4];
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u16 fan[2];
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u16 fan_min[2];
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u16 fan_full[2];
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u16 fan_exp[2];
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u8 fan_timer;
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u8 pwm[2];
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u8 pwm_mode[2];
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u8 pwm_enable[2];
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s8 temp[2];
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s8 temp_high[2];
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s8 temp_max_hyst[2];
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};
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static int f75375_detect(struct i2c_client *client,
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struct i2c_board_info *info);
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static int f75375_probe(struct i2c_client *client,
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const struct i2c_device_id *id);
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static int f75375_remove(struct i2c_client *client);
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static const struct i2c_device_id f75375_id[] = {
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{ "f75373", f75373 },
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{ "f75375", f75375 },
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{ }
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};
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MODULE_DEVICE_TABLE(i2c, f75375_id);
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static struct i2c_driver f75375_driver = {
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.class = I2C_CLASS_HWMON,
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.driver = {
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.name = "f75375",
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},
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.probe = f75375_probe,
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.remove = f75375_remove,
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.id_table = f75375_id,
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.detect = f75375_detect,
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.address_list = normal_i2c,
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};
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static inline int f75375_read8(struct i2c_client *client, u8 reg)
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{
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return i2c_smbus_read_byte_data(client, reg);
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}
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/* in most cases, should be called while holding update_lock */
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static inline u16 f75375_read16(struct i2c_client *client, u8 reg)
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{
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return ((i2c_smbus_read_byte_data(client, reg) << 8)
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| i2c_smbus_read_byte_data(client, reg + 1));
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}
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static inline void f75375_write8(struct i2c_client *client, u8 reg,
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u8 value)
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{
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i2c_smbus_write_byte_data(client, reg, value);
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}
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static inline void f75375_write16(struct i2c_client *client, u8 reg,
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u16 value)
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{
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int err = i2c_smbus_write_byte_data(client, reg, (value << 8));
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if (err)
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return;
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i2c_smbus_write_byte_data(client, reg + 1, (value & 0xFF));
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}
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static struct f75375_data *f75375_update_device(struct device *dev)
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{
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struct i2c_client *client = to_i2c_client(dev);
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struct f75375_data *data = i2c_get_clientdata(client);
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int nr;
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mutex_lock(&data->update_lock);
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/* Limit registers cache is refreshed after 60 seconds */
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if (time_after(jiffies, data->last_limits + 60 * HZ)
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|| !data->valid) {
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for (nr = 0; nr < 2; nr++) {
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data->temp_high[nr] =
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f75375_read8(client, F75375_REG_TEMP_HIGH(nr));
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data->temp_max_hyst[nr] =
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f75375_read8(client, F75375_REG_TEMP_HYST(nr));
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data->fan_full[nr] =
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f75375_read16(client, F75375_REG_FAN_FULL(nr));
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data->fan_min[nr] =
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f75375_read16(client, F75375_REG_FAN_MIN(nr));
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data->fan_exp[nr] =
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f75375_read16(client, F75375_REG_FAN_EXP(nr));
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data->pwm[nr] = f75375_read8(client,
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F75375_REG_FAN_PWM_DUTY(nr));
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}
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for (nr = 0; nr < 4; nr++) {
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data->in_max[nr] =
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f75375_read8(client, F75375_REG_VOLT_HIGH(nr));
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data->in_min[nr] =
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f75375_read8(client, F75375_REG_VOLT_LOW(nr));
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}
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data->fan_timer = f75375_read8(client, F75375_REG_FAN_TIMER);
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data->last_limits = jiffies;
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}
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/* Measurement registers cache is refreshed after 2 second */
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if (time_after(jiffies, data->last_updated + 2 * HZ)
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|| !data->valid) {
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for (nr = 0; nr < 2; nr++) {
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data->temp[nr] =
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f75375_read8(client, F75375_REG_TEMP(nr));
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data->fan[nr] =
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f75375_read16(client, F75375_REG_FAN(nr));
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}
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for (nr = 0; nr < 4; nr++)
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data->in[nr] =
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f75375_read8(client, F75375_REG_VOLT(nr));
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data->last_updated = jiffies;
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data->valid = 1;
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}
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mutex_unlock(&data->update_lock);
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return data;
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}
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static inline u16 rpm_from_reg(u16 reg)
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{
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if (reg == 0 || reg == 0xffff)
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return 0;
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return (1500000 / reg);
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}
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static inline u16 rpm_to_reg(int rpm)
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{
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if (rpm < 367 || rpm > 0xffff)
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return 0xffff;
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return (1500000 / rpm);
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}
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static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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{
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int nr = to_sensor_dev_attr(attr)->index;
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struct i2c_client *client = to_i2c_client(dev);
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struct f75375_data *data = i2c_get_clientdata(client);
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int val = simple_strtoul(buf, NULL, 10);
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mutex_lock(&data->update_lock);
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data->fan_min[nr] = rpm_to_reg(val);
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f75375_write16(client, F75375_REG_FAN_MIN(nr), data->fan_min[nr]);
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mutex_unlock(&data->update_lock);
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return count;
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}
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static ssize_t set_fan_exp(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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{
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int nr = to_sensor_dev_attr(attr)->index;
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struct i2c_client *client = to_i2c_client(dev);
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struct f75375_data *data = i2c_get_clientdata(client);
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int val = simple_strtoul(buf, NULL, 10);
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mutex_lock(&data->update_lock);
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data->fan_exp[nr] = rpm_to_reg(val);
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f75375_write16(client, F75375_REG_FAN_EXP(nr), data->fan_exp[nr]);
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mutex_unlock(&data->update_lock);
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return count;
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}
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static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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{
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int nr = to_sensor_dev_attr(attr)->index;
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struct i2c_client *client = to_i2c_client(dev);
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struct f75375_data *data = i2c_get_clientdata(client);
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int val = simple_strtoul(buf, NULL, 10);
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mutex_lock(&data->update_lock);
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data->pwm[nr] = SENSORS_LIMIT(val, 0, 255);
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f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr), data->pwm[nr]);
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mutex_unlock(&data->update_lock);
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return count;
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}
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static ssize_t show_pwm_enable(struct device *dev, struct device_attribute
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*attr, char *buf)
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{
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int nr = to_sensor_dev_attr(attr)->index;
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struct f75375_data *data = f75375_update_device(dev);
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return sprintf(buf, "%d\n", data->pwm_enable[nr]);
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}
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static int set_pwm_enable_direct(struct i2c_client *client, int nr, int val)
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{
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struct f75375_data *data = i2c_get_clientdata(client);
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u8 fanmode;
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if (val < 0 || val > 4)
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return -EINVAL;
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fanmode = f75375_read8(client, F75375_REG_FAN_TIMER);
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fanmode &= ~(3 << FAN_CTRL_MODE(nr));
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switch (val) {
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case 0: /* Full speed */
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fanmode |= (3 << FAN_CTRL_MODE(nr));
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data->pwm[nr] = 255;
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f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr),
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data->pwm[nr]);
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break;
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case 1: /* PWM */
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fanmode |= (3 << FAN_CTRL_MODE(nr));
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break;
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case 2: /* AUTOMATIC*/
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fanmode |= (2 << FAN_CTRL_MODE(nr));
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break;
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case 3: /* fan speed */
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break;
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}
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f75375_write8(client, F75375_REG_FAN_TIMER, fanmode);
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data->pwm_enable[nr] = val;
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return 0;
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}
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static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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{
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int nr = to_sensor_dev_attr(attr)->index;
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struct i2c_client *client = to_i2c_client(dev);
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struct f75375_data *data = i2c_get_clientdata(client);
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int val = simple_strtoul(buf, NULL, 10);
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int err = 0;
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mutex_lock(&data->update_lock);
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err = set_pwm_enable_direct(client, nr, val);
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mutex_unlock(&data->update_lock);
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return err ? err : count;
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}
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static ssize_t set_pwm_mode(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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{
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int nr = to_sensor_dev_attr(attr)->index;
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struct i2c_client *client = to_i2c_client(dev);
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struct f75375_data *data = i2c_get_clientdata(client);
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int val = simple_strtoul(buf, NULL, 10);
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u8 conf = 0;
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if (!(val == 0 || val == 1))
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return -EINVAL;
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mutex_lock(&data->update_lock);
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conf = f75375_read8(client, F75375_REG_CONFIG1);
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conf &= ~(1 << FAN_CTRL_LINEAR(nr));
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if (val == 0)
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conf |= (1 << FAN_CTRL_LINEAR(nr)) ;
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f75375_write8(client, F75375_REG_CONFIG1, conf);
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data->pwm_mode[nr] = val;
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mutex_unlock(&data->update_lock);
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return count;
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}
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static ssize_t show_pwm(struct device *dev, struct device_attribute
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*attr, char *buf)
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{
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int nr = to_sensor_dev_attr(attr)->index;
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struct f75375_data *data = f75375_update_device(dev);
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return sprintf(buf, "%d\n", data->pwm[nr]);
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}
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static ssize_t show_pwm_mode(struct device *dev, struct device_attribute
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*attr, char *buf)
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{
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int nr = to_sensor_dev_attr(attr)->index;
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struct f75375_data *data = f75375_update_device(dev);
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return sprintf(buf, "%d\n", data->pwm_mode[nr]);
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}
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#define VOLT_FROM_REG(val) ((val) * 8)
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#define VOLT_TO_REG(val) ((val) / 8)
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static ssize_t show_in(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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int nr = to_sensor_dev_attr(attr)->index;
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struct f75375_data *data = f75375_update_device(dev);
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return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in[nr]));
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}
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static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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int nr = to_sensor_dev_attr(attr)->index;
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struct f75375_data *data = f75375_update_device(dev);
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return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in_max[nr]));
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}
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static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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int nr = to_sensor_dev_attr(attr)->index;
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struct f75375_data *data = f75375_update_device(dev);
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return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in_min[nr]));
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}
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static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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{
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int nr = to_sensor_dev_attr(attr)->index;
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struct i2c_client *client = to_i2c_client(dev);
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struct f75375_data *data = i2c_get_clientdata(client);
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int val = simple_strtoul(buf, NULL, 10);
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val = SENSORS_LIMIT(VOLT_TO_REG(val), 0, 0xff);
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mutex_lock(&data->update_lock);
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data->in_max[nr] = val;
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f75375_write8(client, F75375_REG_VOLT_HIGH(nr), data->in_max[nr]);
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mutex_unlock(&data->update_lock);
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return count;
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}
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static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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{
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int nr = to_sensor_dev_attr(attr)->index;
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struct i2c_client *client = to_i2c_client(dev);
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struct f75375_data *data = i2c_get_clientdata(client);
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int val = simple_strtoul(buf, NULL, 10);
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val = SENSORS_LIMIT(VOLT_TO_REG(val), 0, 0xff);
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mutex_lock(&data->update_lock);
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data->in_min[nr] = val;
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f75375_write8(client, F75375_REG_VOLT_LOW(nr), data->in_min[nr]);
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mutex_unlock(&data->update_lock);
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return count;
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}
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#define TEMP_FROM_REG(val) ((val) * 1000)
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#define TEMP_TO_REG(val) ((val) / 1000)
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static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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int nr = to_sensor_dev_attr(attr)->index;
|
|
struct f75375_data *data = f75375_update_device(dev);
|
|
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr]));
|
|
}
|
|
|
|
static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct f75375_data *data = f75375_update_device(dev);
|
|
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_high[nr]));
|
|
}
|
|
|
|
static ssize_t show_temp_max_hyst(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct f75375_data *data = f75375_update_device(dev);
|
|
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max_hyst[nr]));
|
|
}
|
|
|
|
static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct f75375_data *data = i2c_get_clientdata(client);
|
|
int val = simple_strtol(buf, NULL, 10);
|
|
val = SENSORS_LIMIT(TEMP_TO_REG(val), 0, 127);
|
|
mutex_lock(&data->update_lock);
|
|
data->temp_high[nr] = val;
|
|
f75375_write8(client, F75375_REG_TEMP_HIGH(nr), data->temp_high[nr]);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t set_temp_max_hyst(struct device *dev,
|
|
struct device_attribute *attr, const char *buf, size_t count)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct f75375_data *data = i2c_get_clientdata(client);
|
|
int val = simple_strtol(buf, NULL, 10);
|
|
val = SENSORS_LIMIT(TEMP_TO_REG(val), 0, 127);
|
|
mutex_lock(&data->update_lock);
|
|
data->temp_max_hyst[nr] = val;
|
|
f75375_write8(client, F75375_REG_TEMP_HYST(nr),
|
|
data->temp_max_hyst[nr]);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
#define show_fan(thing) \
|
|
static ssize_t show_##thing(struct device *dev, struct device_attribute *attr, \
|
|
char *buf)\
|
|
{\
|
|
int nr = to_sensor_dev_attr(attr)->index;\
|
|
struct f75375_data *data = f75375_update_device(dev); \
|
|
return sprintf(buf, "%d\n", rpm_from_reg(data->thing[nr])); \
|
|
}
|
|
|
|
show_fan(fan);
|
|
show_fan(fan_min);
|
|
show_fan(fan_full);
|
|
show_fan(fan_exp);
|
|
|
|
static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
|
|
static SENSOR_DEVICE_ATTR(in0_max, S_IRUGO|S_IWUSR,
|
|
show_in_max, set_in_max, 0);
|
|
static SENSOR_DEVICE_ATTR(in0_min, S_IRUGO|S_IWUSR,
|
|
show_in_min, set_in_min, 0);
|
|
static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
|
|
static SENSOR_DEVICE_ATTR(in1_max, S_IRUGO|S_IWUSR,
|
|
show_in_max, set_in_max, 1);
|
|
static SENSOR_DEVICE_ATTR(in1_min, S_IRUGO|S_IWUSR,
|
|
show_in_min, set_in_min, 1);
|
|
static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
|
|
static SENSOR_DEVICE_ATTR(in2_max, S_IRUGO|S_IWUSR,
|
|
show_in_max, set_in_max, 2);
|
|
static SENSOR_DEVICE_ATTR(in2_min, S_IRUGO|S_IWUSR,
|
|
show_in_min, set_in_min, 2);
|
|
static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
|
|
static SENSOR_DEVICE_ATTR(in3_max, S_IRUGO|S_IWUSR,
|
|
show_in_max, set_in_max, 3);
|
|
static SENSOR_DEVICE_ATTR(in3_min, S_IRUGO|S_IWUSR,
|
|
show_in_min, set_in_min, 3);
|
|
static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
|
|
static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO|S_IWUSR,
|
|
show_temp_max_hyst, set_temp_max_hyst, 0);
|
|
static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO|S_IWUSR,
|
|
show_temp_max, set_temp_max, 0);
|
|
static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
|
|
static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO|S_IWUSR,
|
|
show_temp_max_hyst, set_temp_max_hyst, 1);
|
|
static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO|S_IWUSR,
|
|
show_temp_max, set_temp_max, 1);
|
|
static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
|
|
static SENSOR_DEVICE_ATTR(fan1_full, S_IRUGO, show_fan_full, NULL, 0);
|
|
static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO|S_IWUSR,
|
|
show_fan_min, set_fan_min, 0);
|
|
static SENSOR_DEVICE_ATTR(fan1_exp, S_IRUGO|S_IWUSR,
|
|
show_fan_exp, set_fan_exp, 0);
|
|
static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1);
|
|
static SENSOR_DEVICE_ATTR(fan2_full, S_IRUGO, show_fan_full, NULL, 1);
|
|
static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO|S_IWUSR,
|
|
show_fan_min, set_fan_min, 1);
|
|
static SENSOR_DEVICE_ATTR(fan2_exp, S_IRUGO|S_IWUSR,
|
|
show_fan_exp, set_fan_exp, 1);
|
|
static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO|S_IWUSR,
|
|
show_pwm, set_pwm, 0);
|
|
static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO|S_IWUSR,
|
|
show_pwm_enable, set_pwm_enable, 0);
|
|
static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO,
|
|
show_pwm_mode, set_pwm_mode, 0);
|
|
static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR,
|
|
show_pwm, set_pwm, 1);
|
|
static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO|S_IWUSR,
|
|
show_pwm_enable, set_pwm_enable, 1);
|
|
static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO,
|
|
show_pwm_mode, set_pwm_mode, 1);
|
|
|
|
static struct attribute *f75375_attributes[] = {
|
|
&sensor_dev_attr_temp1_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp1_max.dev_attr.attr,
|
|
&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
|
|
&sensor_dev_attr_temp2_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp2_max.dev_attr.attr,
|
|
&sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
|
|
&sensor_dev_attr_fan1_input.dev_attr.attr,
|
|
&sensor_dev_attr_fan1_full.dev_attr.attr,
|
|
&sensor_dev_attr_fan1_min.dev_attr.attr,
|
|
&sensor_dev_attr_fan1_exp.dev_attr.attr,
|
|
&sensor_dev_attr_fan2_input.dev_attr.attr,
|
|
&sensor_dev_attr_fan2_full.dev_attr.attr,
|
|
&sensor_dev_attr_fan2_min.dev_attr.attr,
|
|
&sensor_dev_attr_fan2_exp.dev_attr.attr,
|
|
&sensor_dev_attr_pwm1.dev_attr.attr,
|
|
&sensor_dev_attr_pwm1_enable.dev_attr.attr,
|
|
&sensor_dev_attr_pwm1_mode.dev_attr.attr,
|
|
&sensor_dev_attr_pwm2.dev_attr.attr,
|
|
&sensor_dev_attr_pwm2_enable.dev_attr.attr,
|
|
&sensor_dev_attr_pwm2_mode.dev_attr.attr,
|
|
&sensor_dev_attr_in0_input.dev_attr.attr,
|
|
&sensor_dev_attr_in0_max.dev_attr.attr,
|
|
&sensor_dev_attr_in0_min.dev_attr.attr,
|
|
&sensor_dev_attr_in1_input.dev_attr.attr,
|
|
&sensor_dev_attr_in1_max.dev_attr.attr,
|
|
&sensor_dev_attr_in1_min.dev_attr.attr,
|
|
&sensor_dev_attr_in2_input.dev_attr.attr,
|
|
&sensor_dev_attr_in2_max.dev_attr.attr,
|
|
&sensor_dev_attr_in2_min.dev_attr.attr,
|
|
&sensor_dev_attr_in3_input.dev_attr.attr,
|
|
&sensor_dev_attr_in3_max.dev_attr.attr,
|
|
&sensor_dev_attr_in3_min.dev_attr.attr,
|
|
NULL
|
|
};
|
|
|
|
static const struct attribute_group f75375_group = {
|
|
.attrs = f75375_attributes,
|
|
};
|
|
|
|
static void f75375_init(struct i2c_client *client, struct f75375_data *data,
|
|
struct f75375s_platform_data *f75375s_pdata)
|
|
{
|
|
int nr;
|
|
set_pwm_enable_direct(client, 0, f75375s_pdata->pwm_enable[0]);
|
|
set_pwm_enable_direct(client, 1, f75375s_pdata->pwm_enable[1]);
|
|
for (nr = 0; nr < 2; nr++) {
|
|
data->pwm[nr] = SENSORS_LIMIT(f75375s_pdata->pwm[nr], 0, 255);
|
|
f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr),
|
|
data->pwm[nr]);
|
|
}
|
|
|
|
}
|
|
|
|
static int f75375_probe(struct i2c_client *client,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct f75375_data *data;
|
|
struct f75375s_platform_data *f75375s_pdata = client->dev.platform_data;
|
|
int err;
|
|
|
|
if (!i2c_check_functionality(client->adapter,
|
|
I2C_FUNC_SMBUS_BYTE_DATA))
|
|
return -EIO;
|
|
if (!(data = kzalloc(sizeof(struct f75375_data), GFP_KERNEL)))
|
|
return -ENOMEM;
|
|
|
|
i2c_set_clientdata(client, data);
|
|
mutex_init(&data->update_lock);
|
|
data->kind = id->driver_data;
|
|
|
|
if ((err = sysfs_create_group(&client->dev.kobj, &f75375_group)))
|
|
goto exit_free;
|
|
|
|
if (data->kind == f75375) {
|
|
err = sysfs_chmod_file(&client->dev.kobj,
|
|
&sensor_dev_attr_pwm1_mode.dev_attr.attr,
|
|
S_IRUGO | S_IWUSR);
|
|
if (err)
|
|
goto exit_remove;
|
|
err = sysfs_chmod_file(&client->dev.kobj,
|
|
&sensor_dev_attr_pwm2_mode.dev_attr.attr,
|
|
S_IRUGO | S_IWUSR);
|
|
if (err)
|
|
goto exit_remove;
|
|
}
|
|
|
|
data->hwmon_dev = hwmon_device_register(&client->dev);
|
|
if (IS_ERR(data->hwmon_dev)) {
|
|
err = PTR_ERR(data->hwmon_dev);
|
|
goto exit_remove;
|
|
}
|
|
|
|
if (f75375s_pdata != NULL)
|
|
f75375_init(client, data, f75375s_pdata);
|
|
|
|
return 0;
|
|
|
|
exit_remove:
|
|
sysfs_remove_group(&client->dev.kobj, &f75375_group);
|
|
exit_free:
|
|
kfree(data);
|
|
return err;
|
|
}
|
|
|
|
static int f75375_remove(struct i2c_client *client)
|
|
{
|
|
struct f75375_data *data = i2c_get_clientdata(client);
|
|
hwmon_device_unregister(data->hwmon_dev);
|
|
sysfs_remove_group(&client->dev.kobj, &f75375_group);
|
|
kfree(data);
|
|
return 0;
|
|
}
|
|
|
|
/* Return 0 if detection is successful, -ENODEV otherwise */
|
|
static int f75375_detect(struct i2c_client *client,
|
|
struct i2c_board_info *info)
|
|
{
|
|
struct i2c_adapter *adapter = client->adapter;
|
|
u16 vendid, chipid;
|
|
u8 version;
|
|
const char *name;
|
|
|
|
vendid = f75375_read16(client, F75375_REG_VENDOR);
|
|
chipid = f75375_read16(client, F75375_CHIP_ID);
|
|
if (chipid == 0x0306 && vendid == 0x1934)
|
|
name = "f75375";
|
|
else if (chipid == 0x0204 && vendid == 0x1934)
|
|
name = "f75373";
|
|
else
|
|
return -ENODEV;
|
|
|
|
version = f75375_read8(client, F75375_REG_VERSION);
|
|
dev_info(&adapter->dev, "found %s version: %02X\n", name, version);
|
|
strlcpy(info->type, name, I2C_NAME_SIZE);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __init sensors_f75375_init(void)
|
|
{
|
|
return i2c_add_driver(&f75375_driver);
|
|
}
|
|
|
|
static void __exit sensors_f75375_exit(void)
|
|
{
|
|
i2c_del_driver(&f75375_driver);
|
|
}
|
|
|
|
MODULE_AUTHOR("Riku Voipio");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DESCRIPTION("F75373/F75375 hardware monitoring driver");
|
|
|
|
module_init(sensors_f75375_init);
|
|
module_exit(sensors_f75375_exit);
|