| /* |
| w83793.c - Linux kernel driver for hardware monitoring |
| Copyright (C) 2006 Winbond Electronics Corp. |
| Yuan Mu |
| Rudolf Marek <r.marek@assembler.cz> |
| |
| 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 - version 2. |
| |
| 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., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| */ |
| |
| /* |
| Supports following chips: |
| |
| Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA |
| w83793 10 12 8 6 0x7b 0x5ca3 yes no |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/init.h> |
| #include <linux/slab.h> |
| #include <linux/i2c.h> |
| #include <linux/hwmon.h> |
| #include <linux/hwmon-vid.h> |
| #include <linux/hwmon-sysfs.h> |
| #include <linux/err.h> |
| #include <linux/mutex.h> |
| |
| /* Addresses to scan */ |
| static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END }; |
| |
| /* Insmod parameters */ |
| I2C_CLIENT_INSMOD_1(w83793); |
| I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: " |
| "{bus, clientaddr, subclientaddr1, subclientaddr2}"); |
| |
| static int reset; |
| module_param(reset, bool, 0); |
| MODULE_PARM_DESC(reset, "Set to 1 to reset chip, not recommended"); |
| |
| /* |
| Address 0x00, 0x0d, 0x0e, 0x0f in all three banks are reserved |
| as ID, Bank Select registers |
| */ |
| #define W83793_REG_BANKSEL 0x00 |
| #define W83793_REG_VENDORID 0x0d |
| #define W83793_REG_CHIPID 0x0e |
| #define W83793_REG_DEVICEID 0x0f |
| |
| #define W83793_REG_CONFIG 0x40 |
| #define W83793_REG_MFC 0x58 |
| #define W83793_REG_FANIN_CTRL 0x5c |
| #define W83793_REG_FANIN_SEL 0x5d |
| #define W83793_REG_I2C_ADDR 0x0b |
| #define W83793_REG_I2C_SUBADDR 0x0c |
| #define W83793_REG_VID_INA 0x05 |
| #define W83793_REG_VID_INB 0x06 |
| #define W83793_REG_VID_LATCHA 0x07 |
| #define W83793_REG_VID_LATCHB 0x08 |
| #define W83793_REG_VID_CTRL 0x59 |
| |
| static u16 W83793_REG_TEMP_MODE[2] = { 0x5e, 0x5f }; |
| |
| #define TEMP_READ 0 |
| #define TEMP_CRIT 1 |
| #define TEMP_CRIT_HYST 2 |
| #define TEMP_WARN 3 |
| #define TEMP_WARN_HYST 4 |
| /* only crit and crit_hyst affect real-time alarm status |
| current crit crit_hyst warn warn_hyst */ |
| static u16 W83793_REG_TEMP[][5] = { |
| {0x1c, 0x78, 0x79, 0x7a, 0x7b}, |
| {0x1d, 0x7c, 0x7d, 0x7e, 0x7f}, |
| {0x1e, 0x80, 0x81, 0x82, 0x83}, |
| {0x1f, 0x84, 0x85, 0x86, 0x87}, |
| {0x20, 0x88, 0x89, 0x8a, 0x8b}, |
| {0x21, 0x8c, 0x8d, 0x8e, 0x8f}, |
| }; |
| |
| #define W83793_REG_TEMP_LOW_BITS 0x22 |
| |
| #define W83793_REG_BEEP(index) (0x53 + (index)) |
| #define W83793_REG_ALARM(index) (0x4b + (index)) |
| |
| #define W83793_REG_CLR_CHASSIS 0x4a /* SMI MASK4 */ |
| #define W83793_REG_IRQ_CTRL 0x50 |
| #define W83793_REG_OVT_CTRL 0x51 |
| #define W83793_REG_OVT_BEEP 0x52 |
| |
| #define IN_READ 0 |
| #define IN_MAX 1 |
| #define IN_LOW 2 |
| static const u16 W83793_REG_IN[][3] = { |
| /* Current, High, Low */ |
| {0x10, 0x60, 0x61}, /* Vcore A */ |
| {0x11, 0x62, 0x63}, /* Vcore B */ |
| {0x12, 0x64, 0x65}, /* Vtt */ |
| {0x14, 0x6a, 0x6b}, /* VSEN1 */ |
| {0x15, 0x6c, 0x6d}, /* VSEN2 */ |
| {0x16, 0x6e, 0x6f}, /* +3VSEN */ |
| {0x17, 0x70, 0x71}, /* +12VSEN */ |
| {0x18, 0x72, 0x73}, /* 5VDD */ |
| {0x19, 0x74, 0x75}, /* 5VSB */ |
| {0x1a, 0x76, 0x77}, /* VBAT */ |
| }; |
| |
| /* Low Bits of Vcore A/B Vtt Read/High/Low */ |
| static const u16 W83793_REG_IN_LOW_BITS[] = { 0x1b, 0x68, 0x69 }; |
| static u8 scale_in[] = { 2, 2, 2, 16, 16, 16, 8, 24, 24, 16 }; |
| static u8 scale_in_add[] = { 0, 0, 0, 0, 0, 0, 0, 150, 150, 0 }; |
| |
| #define W83793_REG_FAN(index) (0x23 + 2 * (index)) /* High byte */ |
| #define W83793_REG_FAN_MIN(index) (0x90 + 2 * (index)) /* High byte */ |
| |
| #define W83793_REG_PWM_DEFAULT 0xb2 |
| #define W83793_REG_PWM_ENABLE 0x207 |
| #define W83793_REG_PWM_UPTIME 0xc3 /* Unit in 0.1 second */ |
| #define W83793_REG_PWM_DOWNTIME 0xc4 /* Unit in 0.1 second */ |
| #define W83793_REG_TEMP_CRITICAL 0xc5 |
| |
| #define PWM_DUTY 0 |
| #define PWM_START 1 |
| #define PWM_NONSTOP 2 |
| #define W83793_REG_PWM(index, nr) (((nr) == 0 ? 0xb3 : \ |
| (nr) == 1 ? 0x220 : 0x218) + (index)) |
| |
| /* bit field, fan1 is bit0, fan2 is bit1 ... */ |
| #define W83793_REG_TEMP_FAN_MAP(index) (0x201 + (index)) |
| #define W83793_REG_TEMP_TOL(index) (0x208 + (index)) |
| #define W83793_REG_TEMP_CRUISE(index) (0x210 + (index)) |
| #define W83793_REG_PWM_STOP_TIME(index) (0x228 + (index)) |
| #define W83793_REG_SF2_TEMP(index, nr) (0x230 + ((index) << 4) + (nr)) |
| #define W83793_REG_SF2_PWM(index, nr) (0x238 + ((index) << 4) + (nr)) |
| |
| static inline unsigned long FAN_FROM_REG(u16 val) |
| { |
| if ((val >= 0xfff) || (val == 0)) |
| return 0; |
| return (1350000UL / val); |
| } |
| |
| static inline u16 FAN_TO_REG(long rpm) |
| { |
| if (rpm <= 0) |
| return 0x0fff; |
| return SENSORS_LIMIT((1350000 + (rpm >> 1)) / rpm, 1, 0xffe); |
| } |
| |
| static inline unsigned long TIME_FROM_REG(u8 reg) |
| { |
| return (reg * 100); |
| } |
| |
| static inline u8 TIME_TO_REG(unsigned long val) |
| { |
| return SENSORS_LIMIT((val + 50) / 100, 0, 0xff); |
| } |
| |
| static inline long TEMP_FROM_REG(s8 reg) |
| { |
| return (reg * 1000); |
| } |
| |
| static inline s8 TEMP_TO_REG(long val, s8 min, s8 max) |
| { |
| return SENSORS_LIMIT((val + (val < 0 ? -500 : 500)) / 1000, min, max); |
| } |
| |
| struct w83793_data { |
| struct i2c_client client; |
| struct i2c_client *lm75[2]; |
| struct class_device *class_dev; |
| struct mutex update_lock; |
| char valid; /* !=0 if following fields are valid */ |
| unsigned long last_updated; /* In jiffies */ |
| unsigned long last_nonvolatile; /* In jiffies, last time we update the |
| nonvolatile registers */ |
| |
| u8 bank; |
| u8 vrm; |
| u8 vid[2]; |
| u8 in[10][3]; /* Register value, read/high/low */ |
| u8 in_low_bits[3]; /* Additional resolution for VCore A/B Vtt */ |
| |
| u16 has_fan; /* Only fan1- fan5 has own pins */ |
| u16 fan[12]; /* Register value combine */ |
| u16 fan_min[12]; /* Register value combine */ |
| |
| s8 temp[6][5]; /* current, crit, crit_hyst,warn, warn_hyst */ |
| u8 temp_low_bits; /* Additional resolution TD1-TD4 */ |
| u8 temp_mode[2]; /* byte 0: Temp D1-D4 mode each has 2 bits |
| byte 1: Temp R1,R2 mode, each has 1 bit */ |
| u8 temp_critical; /* If reached all fan will be at full speed */ |
| u8 temp_fan_map[6]; /* Temp controls which pwm fan, bit field */ |
| |
| u8 has_pwm; |
| u8 has_temp; |
| u8 pwm_enable; /* Register value, each Temp has 1 bit */ |
| u8 pwm_uptime; /* Register value */ |
| u8 pwm_downtime; /* Register value */ |
| u8 pwm_default; /* All fan default pwm, next poweron valid */ |
| u8 pwm[8][3]; /* Register value */ |
| u8 pwm_stop_time[8]; |
| u8 temp_cruise[6]; |
| |
| u8 alarms[5]; /* realtime status registers */ |
| u8 beeps[5]; |
| u8 beep_enable; |
| u8 tolerance[3]; /* Temp tolerance(Smart Fan I/II) */ |
| u8 sf2_pwm[6][7]; /* Smart FanII: Fan duty cycle */ |
| u8 sf2_temp[6][7]; /* Smart FanII: Temp level point */ |
| }; |
| |
| static u8 w83793_read_value(struct i2c_client *client, u16 reg); |
| static int w83793_write_value(struct i2c_client *client, u16 reg, u8 value); |
| static int w83793_attach_adapter(struct i2c_adapter *adapter); |
| static int w83793_detect(struct i2c_adapter *adapter, int address, int kind); |
| static int w83793_detach_client(struct i2c_client *client); |
| static void w83793_init_client(struct i2c_client *client); |
| static void w83793_update_nonvolatile(struct device *dev); |
| static struct w83793_data *w83793_update_device(struct device *dev); |
| |
| static struct i2c_driver w83793_driver = { |
| .driver = { |
| .name = "w83793", |
| }, |
| .attach_adapter = w83793_attach_adapter, |
| .detach_client = w83793_detach_client, |
| }; |
| |
| static ssize_t |
| show_vrm(struct device *dev, struct device_attribute *attr, char *buf) |
| { |
| struct i2c_client *client = to_i2c_client(dev); |
| struct w83793_data *data = i2c_get_clientdata(client); |
| |
| return sprintf(buf, "%d\n", data->vrm); |
| } |
| |
| static ssize_t |
| show_vid(struct device *dev, struct device_attribute *attr, char *buf) |
| { |
| struct w83793_data *data = w83793_update_device(dev); |
| struct sensor_device_attribute_2 *sensor_attr = |
| to_sensor_dev_attr_2(attr); |
| int index = sensor_attr->index; |
| |
| return sprintf(buf, "%d\n", vid_from_reg(data->vid[index], data->vrm)); |
| } |
| |
| static ssize_t |
| store_vrm(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct i2c_client *client = to_i2c_client(dev); |
| struct w83793_data *data = i2c_get_clientdata(client); |
| |
| data->vrm = simple_strtoul(buf, NULL, 10); |
| return count; |
| } |
| |
| #define ALARM_STATUS 0 |
| #define BEEP_ENABLE 1 |
| static ssize_t |
| show_alarm_beep(struct device *dev, struct device_attribute *attr, char *buf) |
| { |
| struct w83793_data *data = w83793_update_device(dev); |
| struct sensor_device_attribute_2 *sensor_attr = |
| to_sensor_dev_attr_2(attr); |
| int nr = sensor_attr->nr; |
| int index = sensor_attr->index >> 3; |
| int bit = sensor_attr->index & 0x07; |
| u8 val; |
| |
| if (ALARM_STATUS == nr) { |
| val = (data->alarms[index] >> (bit)) & 1; |
| } else { /* BEEP_ENABLE */ |
| val = (data->beeps[index] >> (bit)) & 1; |
| } |
| |
| return sprintf(buf, "%u\n", val); |
| } |
| |
| static ssize_t |
| store_beep(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct i2c_client *client = to_i2c_client(dev); |
| struct w83793_data *data = i2c_get_clientdata(client); |
| struct sensor_device_attribute_2 *sensor_attr = |
| to_sensor_dev_attr_2(attr); |
| int index = sensor_attr->index >> 3; |
| int shift = sensor_attr->index & 0x07; |
| u8 beep_bit = 1 << shift; |
| u8 val; |
| |
| val = simple_strtoul(buf, NULL, 10); |
| if (val != 0 && val != 1) |
| return -EINVAL; |
| |
| mutex_lock(&data->update_lock); |
| data->beeps[index] = w83793_read_value(client, W83793_REG_BEEP(index)); |
| data->beeps[index] &= ~beep_bit; |
| data->beeps[index] |= val << shift; |
| w83793_write_value(client, W83793_REG_BEEP(index), data->beeps[index]); |
| mutex_unlock(&data->update_lock); |
| |
| return count; |
| } |
| |
| static ssize_t |
| show_beep_enable(struct device *dev, struct device_attribute *attr, char *buf) |
| { |
| struct w83793_data *data = w83793_update_device(dev); |
| return sprintf(buf, "%u\n", (data->beep_enable >> 1) & 0x01); |
| } |
| |
| static ssize_t |
| store_beep_enable(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct i2c_client *client = to_i2c_client(dev); |
| struct w83793_data *data = i2c_get_clientdata(client); |
| u8 val = simple_strtoul(buf, NULL, 10); |
| |
| if (val != 0 && val != 1) |
| return -EINVAL; |
| |
| mutex_lock(&data->update_lock); |
| data->beep_enable = w83793_read_value(client, W83793_REG_OVT_BEEP) |
| & 0xfd; |
| data->beep_enable |= val << 1; |
| w83793_write_value(client, W83793_REG_OVT_BEEP, data->beep_enable); |
| mutex_unlock(&data->update_lock); |
| |
| return count; |
| } |
| |
| /* Write any value to clear chassis alarm */ |
| static ssize_t |
| store_chassis_clear(struct device *dev, |
| struct device_attribute *attr, const char *buf, |
| size_t count) |
| { |
| struct i2c_client *client = to_i2c_client(dev); |
| struct w83793_data *data = i2c_get_clientdata(client); |
| u8 val; |
| |
| mutex_lock(&data->update_lock); |
| val = w83793_read_value(client, W83793_REG_CLR_CHASSIS); |
| val |= 0x80; |
| w83793_write_value(client, W83793_REG_CLR_CHASSIS, val); |
| mutex_unlock(&data->update_lock); |
| return count; |
| } |
| |
| #define FAN_INPUT 0 |
| #define FAN_MIN 1 |
| static ssize_t |
| show_fan(struct device *dev, struct device_attribute *attr, char *buf) |
| { |
| struct sensor_device_attribute_2 *sensor_attr = |
| to_sensor_dev_attr_2(attr); |
| int nr = sensor_attr->nr; |
| int index = sensor_attr->index; |
| struct w83793_data *data = w83793_update_device(dev); |
| u16 val; |
| |
| if (FAN_INPUT == nr) { |
| val = data->fan[index] & 0x0fff; |
| } else { |
| val = data->fan_min[index] & 0x0fff; |
| } |
| |
| return sprintf(buf, "%lu\n", FAN_FROM_REG(val)); |
| } |
| |
| static ssize_t |
| store_fan_min(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct sensor_device_attribute_2 *sensor_attr = |
| to_sensor_dev_attr_2(attr); |
| int index = sensor_attr->index; |
| struct i2c_client *client = to_i2c_client(dev); |
| struct w83793_data *data = i2c_get_clientdata(client); |
| u16 val = FAN_TO_REG(simple_strtoul(buf, NULL, 10)); |
| |
| mutex_lock(&data->update_lock); |
| data->fan_min[index] = val; |
| w83793_write_value(client, W83793_REG_FAN_MIN(index), |
| (val >> 8) & 0xff); |
| w83793_write_value(client, W83793_REG_FAN_MIN(index) + 1, val & 0xff); |
| mutex_unlock(&data->update_lock); |
| |
| return count; |
| } |
| |
| #define PWM_DUTY 0 |
| #define PWM_START 1 |
| #define PWM_NONSTOP 2 |
| #define PWM_STOP_TIME 3 |
| static ssize_t |
| show_pwm(struct device *dev, struct device_attribute *attr, char *buf) |
| { |
| struct sensor_device_attribute_2 *sensor_attr = |
| to_sensor_dev_attr_2(attr); |
| struct w83793_data *data = w83793_update_device(dev); |
| u16 val; |
| int nr = sensor_attr->nr; |
| int index = sensor_attr->index; |
| |
| if (PWM_STOP_TIME == nr) |
| val = TIME_FROM_REG(data->pwm_stop_time[index]); |
| else |
| val = (data->pwm[index][nr] & 0x3f) << 2; |
| |
| return sprintf(buf, "%d\n", val); |
| } |
| |
| static ssize_t |
| store_pwm(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct i2c_client *client = to_i2c_client(dev); |
| struct w83793_data *data = i2c_get_clientdata(client); |
| struct sensor_device_attribute_2 *sensor_attr = |
| to_sensor_dev_attr_2(attr); |
| int nr = sensor_attr->nr; |
| int index = sensor_attr->index; |
| u8 val; |
| |
| mutex_lock(&data->update_lock); |
| if (PWM_STOP_TIME == nr) { |
| val = TIME_TO_REG(simple_strtoul(buf, NULL, 10)); |
| data->pwm_stop_time[index] = val; |
| w83793_write_value(client, W83793_REG_PWM_STOP_TIME(index), |
| val); |
| } else { |
| val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 0xff) |
| >> 2; |
| data->pwm[index][nr] = |
| w83793_read_value(client, W83793_REG_PWM(index, nr)) & 0xc0; |
| data->pwm[index][nr] |= val; |
| w83793_write_value(client, W83793_REG_PWM(index, nr), |
| data->pwm[index][nr]); |
| } |
| |
| mutex_unlock(&data->update_lock); |
| return count; |
| } |
| |
| static ssize_t |
| show_temp(struct device *dev, struct device_attribute *attr, char *buf) |
| { |
| struct sensor_device_attribute_2 *sensor_attr = |
| to_sensor_dev_attr_2(attr); |
| int nr = sensor_attr->nr; |
| int index = sensor_attr->index; |
| struct w83793_data *data = w83793_update_device(dev); |
| long temp = TEMP_FROM_REG(data->temp[index][nr]); |
| |
| if (TEMP_READ == nr && index < 4) { /* Only TD1-TD4 have low bits */ |
| int low = ((data->temp_low_bits >> (index * 2)) & 0x03) * 250; |
| temp += temp > 0 ? low : -low; |
| } |
| return sprintf(buf, "%ld\n", temp); |
| } |
| |
| static ssize_t |
| store_temp(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct sensor_device_attribute_2 *sensor_attr = |
| to_sensor_dev_attr_2(attr); |
| int nr = sensor_attr->nr; |
| int index = sensor_attr->index; |
| struct i2c_client *client = to_i2c_client(dev); |
| struct w83793_data *data = i2c_get_clientdata(client); |
| long tmp = simple_strtol(buf, NULL, 10); |
| |
| mutex_lock(&data->update_lock); |
| data->temp[index][nr] = TEMP_TO_REG(tmp, -128, 127); |
| w83793_write_value(client, W83793_REG_TEMP[index][nr], |
| data->temp[index][nr]); |
| mutex_unlock(&data->update_lock); |
| return count; |
| } |
| |
| /* |
| TD1-TD4 |
| each has 4 mode:(2 bits) |
| 0: Stop monitor |
| 1: Use internal temp sensor(default) |
| 2: Reserved |
| 3: Use sensor in Intel CPU and get result by PECI |
| |
| TR1-TR2 |
| each has 2 mode:(1 bit) |
| 0: Disable temp sensor monitor |
| 1: To enable temp sensors monitor |
| */ |
| |
| /* 0 disable, 6 PECI */ |
| static u8 TO_TEMP_MODE[] = { 0, 0, 0, 6 }; |
| |
| static ssize_t |
| show_temp_mode(struct device *dev, struct device_attribute *attr, char *buf) |
| { |
| struct w83793_data *data = w83793_update_device(dev); |
| struct sensor_device_attribute_2 *sensor_attr = |
| to_sensor_dev_attr_2(attr); |
| int index = sensor_attr->index; |
| u8 mask = (index < 4) ? 0x03 : 0x01; |
| u8 shift = (index < 4) ? (2 * index) : (index - 4); |
| u8 tmp; |
| index = (index < 4) ? 0 : 1; |
| |
| tmp = (data->temp_mode[index] >> shift) & mask; |
| |
| /* for the internal sensor, found out if diode or thermistor */ |
| if (tmp == 1) { |
| tmp = index == 0 ? 3 : 4; |
| } else { |
| tmp = TO_TEMP_MODE[tmp]; |
| } |
| |
| return sprintf(buf, "%d\n", tmp); |
| } |
| |
| static ssize_t |
| store_temp_mode(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct i2c_client *client = to_i2c_client(dev); |
| struct w83793_data *data = i2c_get_clientdata(client); |
| struct sensor_device_attribute_2 *sensor_attr = |
| to_sensor_dev_attr_2(attr); |
| int index = sensor_attr->index; |
| u8 mask = (index < 4) ? 0x03 : 0x01; |
| u8 shift = (index < 4) ? (2 * index) : (index - 4); |
| u8 val = simple_strtoul(buf, NULL, 10); |
| |
| /* transform the sysfs interface values into table above */ |
| if ((val == 6) && (index < 4)) { |
| val -= 3; |
| } else if ((val == 3 && index < 4) |
| || (val == 4 && index >= 4)) { |
| /* transform diode or thermistor into internal enable */ |
| val = !!val; |
| } else { |
| return -EINVAL; |
| } |
| |
| index = (index < 4) ? 0 : 1; |
| mutex_lock(&data->update_lock); |
| data->temp_mode[index] = |
| w83793_read_value(client, W83793_REG_TEMP_MODE[index]); |
| data->temp_mode[index] &= ~(mask << shift); |
| data->temp_mode[index] |= val << shift; |
| w83793_write_value(client, W83793_REG_TEMP_MODE[index], |
| data->temp_mode[index]); |
| mutex_unlock(&data->update_lock); |
| |
| return count; |
| } |
| |
| #define SETUP_PWM_DEFAULT 0 |
| #define SETUP_PWM_UPTIME 1 /* Unit in 0.1s */ |
| #define SETUP_PWM_DOWNTIME 2 /* Unit in 0.1s */ |
| #define SETUP_TEMP_CRITICAL 3 |
| static ssize_t |
| show_sf_setup(struct device *dev, struct device_attribute *attr, char *buf) |
| { |
| struct sensor_device_attribute_2 *sensor_attr = |
| to_sensor_dev_attr_2(attr); |
| int nr = sensor_attr->nr; |
| struct w83793_data *data = w83793_update_device(dev); |
| u32 val = 0; |
| |
| if (SETUP_PWM_DEFAULT == nr) { |
| val = (data->pwm_default & 0x3f) << 2; |
| } else if (SETUP_PWM_UPTIME == nr) { |
| val = TIME_FROM_REG(data->pwm_uptime); |
| } else if (SETUP_PWM_DOWNTIME == nr) { |
| val = TIME_FROM_REG(data->pwm_downtime); |
| } else if (SETUP_TEMP_CRITICAL == nr) { |
| val = TEMP_FROM_REG(data->temp_critical & 0x7f); |
| } |
| |
| return sprintf(buf, "%d\n", val); |
| } |
| |
| static ssize_t |
| store_sf_setup(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct sensor_device_attribute_2 *sensor_attr = |
| to_sensor_dev_attr_2(attr); |
| int nr = sensor_attr->nr; |
| struct i2c_client *client = to_i2c_client(dev); |
| struct w83793_data *data = i2c_get_clientdata(client); |
| |
| mutex_lock(&data->update_lock); |
| if (SETUP_PWM_DEFAULT == nr) { |
| data->pwm_default = |
| w83793_read_value(client, W83793_REG_PWM_DEFAULT) & 0xc0; |
| data->pwm_default |= SENSORS_LIMIT(simple_strtoul(buf, NULL, |
| 10), |
| 0, 0xff) >> 2; |
| w83793_write_value(client, W83793_REG_PWM_DEFAULT, |
| data->pwm_default); |
| } else if (SETUP_PWM_UPTIME == nr) { |
| data->pwm_uptime = TIME_TO_REG(simple_strtoul(buf, NULL, 10)); |
| data->pwm_uptime += data->pwm_uptime == 0 ? 1 : 0; |
| w83793_write_value(client, W83793_REG_PWM_UPTIME, |
| data->pwm_uptime); |
| } else if (SETUP_PWM_DOWNTIME == nr) { |
| data->pwm_downtime = TIME_TO_REG(simple_strtoul(buf, NULL, 10)); |
| data->pwm_downtime += data->pwm_downtime == 0 ? 1 : 0; |
| w83793_write_value(client, W83793_REG_PWM_DOWNTIME, |
| data->pwm_downtime); |
| } else { /* SETUP_TEMP_CRITICAL */ |
| data->temp_critical = |
| w83793_read_value(client, W83793_REG_TEMP_CRITICAL) & 0x80; |
| data->temp_critical |= TEMP_TO_REG(simple_strtol(buf, NULL, 10), |
| 0, 0x7f); |
| w83793_write_value(client, W83793_REG_TEMP_CRITICAL, |
| data->temp_critical); |
| } |
| |
| mutex_unlock(&data->update_lock); |
| return count; |
| } |
| |
| /* |
| Temp SmartFan control |
| TEMP_FAN_MAP |
| Temp channel control which pwm fan, bitfield, bit 0 indicate pwm1... |
| It's possible two or more temp channels control the same fan, w83793 |
| always prefers to pick the most critical request and applies it to |
| the related Fan. |
| It's possible one fan is not in any mapping of 6 temp channels, this |
| means the fan is manual mode |
| |
| TEMP_PWM_ENABLE |
| Each temp channel has its own SmartFan mode, and temp channel |
| control fans that are set by TEMP_FAN_MAP |
| 0: SmartFanII mode |
| 1: Thermal Cruise Mode |
| |
| TEMP_CRUISE |
| Target temperature in thermal cruise mode, w83793 will try to turn |
| fan speed to keep the temperature of target device around this |
| temperature. |
| |
| TEMP_TOLERANCE |
| If Temp higher or lower than target with this tolerance, w83793 |
| will take actions to speed up or slow down the fan to keep the |
| temperature within the tolerance range. |
| */ |
| |
| #define TEMP_FAN_MAP 0 |
| #define TEMP_PWM_ENABLE 1 |
| #define TEMP_CRUISE 2 |
| #define TEMP_TOLERANCE 3 |
| static ssize_t |
| show_sf_ctrl(struct device *dev, struct device_attribute *attr, char *buf) |
| { |
| struct sensor_device_attribute_2 *sensor_attr = |
| to_sensor_dev_attr_2(attr); |
| int nr = sensor_attr->nr; |
| int index = sensor_attr->index; |
| struct w83793_data *data = w83793_update_device(dev); |
| u32 val; |
| |
| if (TEMP_FAN_MAP == nr) { |
| val = data->temp_fan_map[index]; |
| } else if (TEMP_PWM_ENABLE == nr) { |
| /* +2 to transfrom into 2 and 3 to conform with sysfs intf */ |
| val = ((data->pwm_enable >> index) & 0x01) + 2; |
| } else if (TEMP_CRUISE == nr) { |
| val = TEMP_FROM_REG(data->temp_cruise[index] & 0x7f); |
| } else { /* TEMP_TOLERANCE */ |
| val = data->tolerance[index >> 1] >> ((index & 0x01) ? 4 : 0); |
| val = TEMP_FROM_REG(val & 0x0f); |
| } |
| return sprintf(buf, "%d\n", val); |
| } |
| |
| static ssize_t |
| store_sf_ctrl(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct sensor_device_attribute_2 *sensor_attr = |
| to_sensor_dev_attr_2(attr); |
| int nr = sensor_attr->nr; |
| int index = sensor_attr->index; |
| struct i2c_client *client = to_i2c_client(dev); |
| struct w83793_data *data = i2c_get_clientdata(client); |
| u32 val; |
| |
| mutex_lock(&data->update_lock); |
| if (TEMP_FAN_MAP == nr) { |
| val = simple_strtoul(buf, NULL, 10) & 0xff; |
| w83793_write_value(client, W83793_REG_TEMP_FAN_MAP(index), val); |
| data->temp_fan_map[index] = val; |
| } else if (TEMP_PWM_ENABLE == nr) { |
| val = simple_strtoul(buf, NULL, 10); |
| if (2 == val || 3 == val) { |
| data->pwm_enable = |
| w83793_read_value(client, W83793_REG_PWM_ENABLE); |
| if (val - 2) |
| data->pwm_enable |= 1 << index; |
| else |
| data->pwm_enable &= ~(1 << index); |
| w83793_write_value(client, W83793_REG_PWM_ENABLE, |
| data->pwm_enable); |
| } else { |
| mutex_unlock(&data->update_lock); |
| return -EINVAL; |
| } |
| } else if (TEMP_CRUISE == nr) { |
| data->temp_cruise[index] = |
| w83793_read_value(client, W83793_REG_TEMP_CRUISE(index)); |
| val = TEMP_TO_REG(simple_strtol(buf, NULL, 10), 0, 0x7f); |
| data->temp_cruise[index] &= 0x80; |
| data->temp_cruise[index] |= val; |
| |
| w83793_write_value(client, W83793_REG_TEMP_CRUISE(index), |
| data->temp_cruise[index]); |
| } else { /* TEMP_TOLERANCE */ |
| int i = index >> 1; |
| u8 shift = (index & 0x01) ? 4 : 0; |
| data->tolerance[i] = |
| w83793_read_value(client, W83793_REG_TEMP_TOL(i)); |
| |
| val = TEMP_TO_REG(simple_strtol(buf, NULL, 10), 0, 0x0f); |
| data->tolerance[i] &= ~(0x0f << shift); |
| data->tolerance[i] |= val << shift; |
| w83793_write_value(client, W83793_REG_TEMP_TOL(i), |
| data->tolerance[i]); |
| } |
| |
| mutex_unlock(&data->update_lock); |
| return count; |
| } |
| |
| static ssize_t |
| show_sf2_pwm(struct device *dev, struct device_attribute *attr, char *buf) |
| { |
| struct sensor_device_attribute_2 *sensor_attr = |
| to_sensor_dev_attr_2(attr); |
| int nr = sensor_attr->nr; |
| int index = sensor_attr->index; |
| struct w83793_data *data = w83793_update_device(dev); |
| |
| return sprintf(buf, "%d\n", (data->sf2_pwm[index][nr] & 0x3f) << 2); |
| } |
| |
| static ssize_t |
| store_sf2_pwm(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct i2c_client *client = to_i2c_client(dev); |
| struct w83793_data *data = i2c_get_clientdata(client); |
| struct sensor_device_attribute_2 *sensor_attr = |
| to_sensor_dev_attr_2(attr); |
| int nr = sensor_attr->nr; |
| int index = sensor_attr->index; |
| u8 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 0xff) >> 2; |
| |
| mutex_lock(&data->update_lock); |
| data->sf2_pwm[index][nr] = |
| w83793_read_value(client, W83793_REG_SF2_PWM(index, nr)) & 0xc0; |
| data->sf2_pwm[index][nr] |= val; |
| w83793_write_value(client, W83793_REG_SF2_PWM(index, nr), |
| data->sf2_pwm[index][nr]); |
| mutex_unlock(&data->update_lock); |
| return count; |
| } |
| |
| static ssize_t |
| show_sf2_temp(struct device *dev, struct device_attribute *attr, char *buf) |
| { |
| struct sensor_device_attribute_2 *sensor_attr = |
| to_sensor_dev_attr_2(attr); |
| int nr = sensor_attr->nr; |
| int index = sensor_attr->index; |
| struct w83793_data *data = w83793_update_device(dev); |
| |
| return sprintf(buf, "%ld\n", |
| TEMP_FROM_REG(data->sf2_temp[index][nr] & 0x7f)); |
| } |
| |
| static ssize_t |
| store_sf2_temp(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct i2c_client *client = to_i2c_client(dev); |
| struct w83793_data *data = i2c_get_clientdata(client); |
| struct sensor_device_attribute_2 *sensor_attr = |
| to_sensor_dev_attr_2(attr); |
| int nr = sensor_attr->nr; |
| int index = sensor_attr->index; |
| u8 val = TEMP_TO_REG(simple_strtol(buf, NULL, 10), 0, 0x7f); |
| |
| mutex_lock(&data->update_lock); |
| data->sf2_temp[index][nr] = |
| w83793_read_value(client, W83793_REG_SF2_TEMP(index, nr)) & 0x80; |
| data->sf2_temp[index][nr] |= val; |
| w83793_write_value(client, W83793_REG_SF2_TEMP(index, nr), |
| data->sf2_temp[index][nr]); |
| mutex_unlock(&data->update_lock); |
| return count; |
| } |
| |
| /* only Vcore A/B and Vtt have additional 2 bits precision */ |
| static ssize_t |
| show_in(struct device *dev, struct device_attribute *attr, char *buf) |
| { |
| struct sensor_device_attribute_2 *sensor_attr = |
| to_sensor_dev_attr_2(attr); |
| int nr = sensor_attr->nr; |
| int index = sensor_attr->index; |
| struct w83793_data *data = w83793_update_device(dev); |
| u16 val = data->in[index][nr]; |
| |
| if (index < 3) { |
| val <<= 2; |
| val += (data->in_low_bits[nr] >> (index * 2)) & 0x3; |
| } |
| /* voltage inputs 5VDD and 5VSB needs 150mV offset */ |
| val = val * scale_in[index] + scale_in_add[index]; |
| return sprintf(buf, "%d\n", val); |
| } |
| |
| static ssize_t |
| store_in(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct sensor_device_attribute_2 *sensor_attr = |
| to_sensor_dev_attr_2(attr); |
| int nr = sensor_attr->nr; |
| int index = sensor_attr->index; |
| struct i2c_client *client = to_i2c_client(dev); |
| struct w83793_data *data = i2c_get_clientdata(client); |
| u32 val; |
| |
| val = |
| (simple_strtoul(buf, NULL, 10) + |
| scale_in[index] / 2) / scale_in[index]; |
| mutex_lock(&data->update_lock); |
| if (index > 2) { |
| /* fix the limit values of 5VDD and 5VSB to ALARM mechanism */ |
| if (1 == nr || 2 == nr) { |
| val -= scale_in_add[index] / scale_in[index]; |
| } |
| val = SENSORS_LIMIT(val, 0, 255); |
| } else { |
| val = SENSORS_LIMIT(val, 0, 0x3FF); |
| data->in_low_bits[nr] = |
| w83793_read_value(client, W83793_REG_IN_LOW_BITS[nr]); |
| data->in_low_bits[nr] &= ~(0x03 << (2 * index)); |
| data->in_low_bits[nr] |= (val & 0x03) << (2 * index); |
| w83793_write_value(client, W83793_REG_IN_LOW_BITS[nr], |
| data->in_low_bits[nr]); |
| val >>= 2; |
| } |
| data->in[index][nr] = val; |
| w83793_write_value(client, W83793_REG_IN[index][nr], |
| data->in[index][nr]); |
| mutex_unlock(&data->update_lock); |
| return count; |
| } |
| |
| #define NOT_USED -1 |
| |
| #define SENSOR_ATTR_IN(index) \ |
| SENSOR_ATTR_2(in##index##_input, S_IRUGO, show_in, NULL, \ |
| IN_READ, index), \ |
| SENSOR_ATTR_2(in##index##_max, S_IRUGO | S_IWUSR, show_in, \ |
| store_in, IN_MAX, index), \ |
| SENSOR_ATTR_2(in##index##_min, S_IRUGO | S_IWUSR, show_in, \ |
| store_in, IN_LOW, index), \ |
| SENSOR_ATTR_2(in##index##_alarm, S_IRUGO, show_alarm_beep, \ |
| NULL, ALARM_STATUS, index + ((index > 2) ? 1 : 0)), \ |
| SENSOR_ATTR_2(in##index##_beep, S_IWUSR | S_IRUGO, \ |
| show_alarm_beep, store_beep, BEEP_ENABLE, \ |
| index + ((index > 2) ? 1 : 0)) |
| |
| #define SENSOR_ATTR_FAN(index) \ |
| SENSOR_ATTR_2(fan##index##_alarm, S_IRUGO, show_alarm_beep, \ |
| NULL, ALARM_STATUS, index + 17), \ |
| SENSOR_ATTR_2(fan##index##_beep, S_IWUSR | S_IRUGO, \ |
| show_alarm_beep, store_beep, BEEP_ENABLE, index + 17), \ |
| SENSOR_ATTR_2(fan##index##_input, S_IRUGO, show_fan, \ |
| NULL, FAN_INPUT, index - 1), \ |
| SENSOR_ATTR_2(fan##index##_min, S_IWUSR | S_IRUGO, \ |
| show_fan, store_fan_min, FAN_MIN, index - 1) |
| |
| #define SENSOR_ATTR_PWM(index) \ |
| SENSOR_ATTR_2(pwm##index, S_IWUSR | S_IRUGO, show_pwm, \ |
| store_pwm, PWM_DUTY, index - 1), \ |
| SENSOR_ATTR_2(pwm##index##_nonstop, S_IWUSR | S_IRUGO, \ |
| show_pwm, store_pwm, PWM_NONSTOP, index - 1), \ |
| SENSOR_ATTR_2(pwm##index##_start, S_IWUSR | S_IRUGO, \ |
| show_pwm, store_pwm, PWM_START, index - 1), \ |
| SENSOR_ATTR_2(pwm##index##_stop_time, S_IWUSR | S_IRUGO, \ |
| show_pwm, store_pwm, PWM_STOP_TIME, index - 1) |
| |
| #define SENSOR_ATTR_TEMP(index) \ |
| SENSOR_ATTR_2(temp##index##_type, S_IRUGO | S_IWUSR, \ |
| show_temp_mode, store_temp_mode, NOT_USED, index - 1), \ |
| SENSOR_ATTR_2(temp##index##_input, S_IRUGO, show_temp, \ |
| NULL, TEMP_READ, index - 1), \ |
| SENSOR_ATTR_2(temp##index##_max, S_IRUGO | S_IWUSR, show_temp, \ |
| store_temp, TEMP_CRIT, index - 1), \ |
| SENSOR_ATTR_2(temp##index##_max_hyst, S_IRUGO | S_IWUSR, \ |
| show_temp, store_temp, TEMP_CRIT_HYST, index - 1), \ |
| SENSOR_ATTR_2(temp##index##_warn, S_IRUGO | S_IWUSR, show_temp, \ |
| store_temp, TEMP_WARN, index - 1), \ |
| SENSOR_ATTR_2(temp##index##_warn_hyst, S_IRUGO | S_IWUSR, \ |
| show_temp, store_temp, TEMP_WARN_HYST, index - 1), \ |
| SENSOR_ATTR_2(temp##index##_alarm, S_IRUGO, \ |
| show_alarm_beep, NULL, ALARM_STATUS, index + 11), \ |
| SENSOR_ATTR_2(temp##index##_beep, S_IWUSR | S_IRUGO, \ |
| show_alarm_beep, store_beep, BEEP_ENABLE, index + 11), \ |
| SENSOR_ATTR_2(temp##index##_auto_channels_pwm, \ |
| S_IRUGO | S_IWUSR, show_sf_ctrl, store_sf_ctrl, \ |
| TEMP_FAN_MAP, index - 1), \ |
| SENSOR_ATTR_2(temp##index##_pwm_enable, S_IWUSR | S_IRUGO, \ |
| show_sf_ctrl, store_sf_ctrl, TEMP_PWM_ENABLE, \ |
| index - 1), \ |
| SENSOR_ATTR_2(thermal_cruise##index, S_IRUGO | S_IWUSR, \ |
| show_sf_ctrl, store_sf_ctrl, TEMP_CRUISE, index - 1), \ |
| SENSOR_ATTR_2(tolerance##index, S_IRUGO | S_IWUSR, show_sf_ctrl,\ |
| store_sf_ctrl, TEMP_TOLERANCE, index - 1), \ |
| SENSOR_ATTR_2(temp##index##_auto_point1_pwm, S_IRUGO | S_IWUSR, \ |
| show_sf2_pwm, store_sf2_pwm, 0, index - 1), \ |
| SENSOR_ATTR_2(temp##index##_auto_point2_pwm, S_IRUGO | S_IWUSR, \ |
| show_sf2_pwm, store_sf2_pwm, 1, index - 1), \ |
| SENSOR_ATTR_2(temp##index##_auto_point3_pwm, S_IRUGO | S_IWUSR, \ |
| show_sf2_pwm, store_sf2_pwm, 2, index - 1), \ |
| SENSOR_ATTR_2(temp##index##_auto_point4_pwm, S_IRUGO | S_IWUSR, \ |
| show_sf2_pwm, store_sf2_pwm, 3, index - 1), \ |
| SENSOR_ATTR_2(temp##index##_auto_point5_pwm, S_IRUGO | S_IWUSR, \ |
| show_sf2_pwm, store_sf2_pwm, 4, index - 1), \ |
| SENSOR_ATTR_2(temp##index##_auto_point6_pwm, S_IRUGO | S_IWUSR, \ |
| show_sf2_pwm, store_sf2_pwm, 5, index - 1), \ |
| SENSOR_ATTR_2(temp##index##_auto_point7_pwm, S_IRUGO | S_IWUSR, \ |
| show_sf2_pwm, store_sf2_pwm, 6, index - 1), \ |
| SENSOR_ATTR_2(temp##index##_auto_point1_temp, S_IRUGO | S_IWUSR,\ |
| show_sf2_temp, store_sf2_temp, 0, index - 1), \ |
| SENSOR_ATTR_2(temp##index##_auto_point2_temp, S_IRUGO | S_IWUSR,\ |
| show_sf2_temp, store_sf2_temp, 1, index - 1), \ |
| SENSOR_ATTR_2(temp##index##_auto_point3_temp, S_IRUGO | S_IWUSR,\ |
| show_sf2_temp, store_sf2_temp, 2, index - 1), \ |
| SENSOR_ATTR_2(temp##index##_auto_point4_temp, S_IRUGO | S_IWUSR,\ |
| show_sf2_temp, store_sf2_temp, 3, index - 1), \ |
| SENSOR_ATTR_2(temp##index##_auto_point5_temp, S_IRUGO | S_IWUSR,\ |
| show_sf2_temp, store_sf2_temp, 4, index - 1), \ |
| SENSOR_ATTR_2(temp##index##_auto_point6_temp, S_IRUGO | S_IWUSR,\ |
| show_sf2_temp, store_sf2_temp, 5, index - 1), \ |
| SENSOR_ATTR_2(temp##index##_auto_point7_temp, S_IRUGO | S_IWUSR,\ |
| show_sf2_temp, store_sf2_temp, 6, index - 1) |
| |
| static struct sensor_device_attribute_2 w83793_sensor_attr_2[] = { |
| SENSOR_ATTR_IN(0), |
| SENSOR_ATTR_IN(1), |
| SENSOR_ATTR_IN(2), |
| SENSOR_ATTR_IN(3), |
| SENSOR_ATTR_IN(4), |
| SENSOR_ATTR_IN(5), |
| SENSOR_ATTR_IN(6), |
| SENSOR_ATTR_IN(7), |
| SENSOR_ATTR_IN(8), |
| SENSOR_ATTR_IN(9), |
| SENSOR_ATTR_FAN(1), |
| SENSOR_ATTR_FAN(2), |
| SENSOR_ATTR_FAN(3), |
| SENSOR_ATTR_FAN(4), |
| SENSOR_ATTR_FAN(5), |
| SENSOR_ATTR_PWM(1), |
| SENSOR_ATTR_PWM(2), |
| SENSOR_ATTR_PWM(3), |
| }; |
| |
| static struct sensor_device_attribute_2 w83793_temp[] = { |
| SENSOR_ATTR_TEMP(1), |
| SENSOR_ATTR_TEMP(2), |
| SENSOR_ATTR_TEMP(3), |
| SENSOR_ATTR_TEMP(4), |
| SENSOR_ATTR_TEMP(5), |
| SENSOR_ATTR_TEMP(6), |
| }; |
| |
| /* Fan6-Fan12 */ |
| static struct sensor_device_attribute_2 w83793_left_fan[] = { |
| SENSOR_ATTR_FAN(6), |
| SENSOR_ATTR_FAN(7), |
| SENSOR_ATTR_FAN(8), |
| SENSOR_ATTR_FAN(9), |
| SENSOR_ATTR_FAN(10), |
| SENSOR_ATTR_FAN(11), |
| SENSOR_ATTR_FAN(12), |
| }; |
| |
| /* Pwm4-Pwm8 */ |
| static struct sensor_device_attribute_2 w83793_left_pwm[] = { |
| SENSOR_ATTR_PWM(4), |
| SENSOR_ATTR_PWM(5), |
| SENSOR_ATTR_PWM(6), |
| SENSOR_ATTR_PWM(7), |
| SENSOR_ATTR_PWM(8), |
| }; |
| |
| static struct sensor_device_attribute_2 sda_single_files[] = { |
| SENSOR_ATTR_2(cpu0_vid, S_IRUGO, show_vid, NULL, NOT_USED, 0), |
| SENSOR_ATTR_2(cpu1_vid, S_IRUGO, show_vid, NULL, NOT_USED, 1), |
| SENSOR_ATTR_2(vrm, S_IWUSR | S_IRUGO, show_vrm, store_vrm, |
| NOT_USED, NOT_USED), |
| SENSOR_ATTR_2(chassis, S_IWUSR | S_IRUGO, show_alarm_beep, |
| store_chassis_clear, ALARM_STATUS, 30), |
| SENSOR_ATTR_2(beep_enable, S_IWUSR | S_IRUGO, show_beep_enable, |
| store_beep_enable, NOT_USED, NOT_USED), |
| SENSOR_ATTR_2(pwm_default, S_IWUSR | S_IRUGO, show_sf_setup, |
| store_sf_setup, SETUP_PWM_DEFAULT, NOT_USED), |
| SENSOR_ATTR_2(pwm_uptime, S_IWUSR | S_IRUGO, show_sf_setup, |
| store_sf_setup, SETUP_PWM_UPTIME, NOT_USED), |
| SENSOR_ATTR_2(pwm_downtime, S_IWUSR | S_IRUGO, show_sf_setup, |
| store_sf_setup, SETUP_PWM_DOWNTIME, NOT_USED), |
| SENSOR_ATTR_2(temp_critical, S_IWUSR | S_IRUGO, show_sf_setup, |
| store_sf_setup, SETUP_TEMP_CRITICAL, NOT_USED), |
| }; |
| |
| static void w83793_init_client(struct i2c_client *client) |
| { |
| if (reset) { |
| w83793_write_value(client, W83793_REG_CONFIG, 0x80); |
| } |
| |
| /* Start monitoring */ |
| w83793_write_value(client, W83793_REG_CONFIG, |
| w83793_read_value(client, W83793_REG_CONFIG) | 0x01); |
| |
| } |
| |
| static int w83793_attach_adapter(struct i2c_adapter *adapter) |
| { |
| if (!(adapter->class & I2C_CLASS_HWMON)) |
| return 0; |
| return i2c_probe(adapter, &addr_data, w83793_detect); |
| } |
| |
| static int w83793_detach_client(struct i2c_client *client) |
| { |
| struct w83793_data *data = i2c_get_clientdata(client); |
| struct device *dev = &client->dev; |
| int err, i; |
| |
| /* main client */ |
| if (data) { |
| hwmon_device_unregister(data->class_dev); |
| |
| for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++) |
| device_remove_file(dev, |
| &w83793_sensor_attr_2[i].dev_attr); |
| |
| for (i = 0; i < ARRAY_SIZE(sda_single_files); i++) |
| device_remove_file(dev, &sda_single_files[i].dev_attr); |
| |
| for (i = 0; i < ARRAY_SIZE(w83793_left_fan); i++) |
| device_remove_file(dev, &w83793_left_fan[i].dev_attr); |
| |
| for (i = 0; i < ARRAY_SIZE(w83793_left_pwm); i++) |
| device_remove_file(dev, &w83793_left_pwm[i].dev_attr); |
| |
| for (i = 0; i < ARRAY_SIZE(w83793_temp); i++) |
| device_remove_file(dev, &w83793_temp[i].dev_attr); |
| } |
| |
| if ((err = i2c_detach_client(client))) |
| return err; |
| |
| /* main client */ |
| if (data) |
| kfree(data); |
| /* subclient */ |
| else |
| kfree(client); |
| |
| return 0; |
| } |
| |
| static int |
| w83793_create_subclient(struct i2c_adapter *adapter, |
| struct i2c_client *client, int addr, |
| struct i2c_client **sub_cli) |
| { |
| int err = 0; |
| struct i2c_client *sub_client; |
| |
| (*sub_cli) = sub_client = |
| kzalloc(sizeof(struct i2c_client), GFP_KERNEL); |
| if (!(sub_client)) { |
| return -ENOMEM; |
| } |
| sub_client->addr = 0x48 + addr; |
| i2c_set_clientdata(sub_client, NULL); |
| sub_client->adapter = adapter; |
| sub_client->driver = &w83793_driver; |
| strlcpy(sub_client->name, "w83793 subclient", I2C_NAME_SIZE); |
| if ((err = i2c_attach_client(sub_client))) { |
| dev_err(&client->dev, "subclient registration " |
| "at address 0x%x failed\n", sub_client->addr); |
| kfree(sub_client); |
| } |
| return err; |
| } |
| |
| static int |
| w83793_detect_subclients(struct i2c_adapter *adapter, int address, |
| int kind, struct i2c_client *client) |
| { |
| int i, id, err; |
| u8 tmp; |
| struct w83793_data *data = i2c_get_clientdata(client); |
| |
| id = i2c_adapter_id(adapter); |
| if (force_subclients[0] == id && force_subclients[1] == address) { |
| for (i = 2; i <= 3; i++) { |
| if (force_subclients[i] < 0x48 |
| || force_subclients[i] > 0x4f) { |
| dev_err(&client->dev, |
| "invalid subclient " |
| "address %d; must be 0x48-0x4f\n", |
| force_subclients[i]); |
| err = -EINVAL; |
| goto ERROR_SC_0; |
| } |
| } |
| w83793_write_value(client, W83793_REG_I2C_SUBADDR, |
| (force_subclients[2] & 0x07) | |
| ((force_subclients[3] & 0x07) << 4)); |
| } |
| |
| tmp = w83793_read_value(client, W83793_REG_I2C_SUBADDR); |
| if (!(tmp & 0x08)) { |
| err = |
| w83793_create_subclient(adapter, client, tmp & 0x7, |
| &data->lm75[0]); |
| if (err < 0) |
| goto ERROR_SC_0; |
| } |
| if (!(tmp & 0x80)) { |
| if ((data->lm75[0] != NULL) |
| && ((tmp & 0x7) == ((tmp >> 4) & 0x7))) { |
| dev_err(&client->dev, |
| "duplicate addresses 0x%x, " |
| "use force_subclients\n", data->lm75[0]->addr); |
| err = -ENODEV; |
| goto ERROR_SC_1; |
| } |
| err = w83793_create_subclient(adapter, client, |
| (tmp >> 4) & 0x7, &data->lm75[1]); |
| if (err < 0) |
| goto ERROR_SC_1; |
| } |
| |
| return 0; |
| |
| /* Undo inits in case of errors */ |
| |
| ERROR_SC_1: |
| if (data->lm75[0] != NULL) { |
| i2c_detach_client(data->lm75[0]); |
| kfree(data->lm75[0]); |
| } |
| ERROR_SC_0: |
| return err; |
| } |
| |
| static int w83793_detect(struct i2c_adapter *adapter, int address, int kind) |
| { |
| int i; |
| u8 tmp, val; |
| struct i2c_client *client; |
| struct device *dev; |
| struct w83793_data *data; |
| int files_fan = ARRAY_SIZE(w83793_left_fan) / 7; |
| int files_pwm = ARRAY_SIZE(w83793_left_pwm) / 5; |
| int files_temp = ARRAY_SIZE(w83793_temp) / 6; |
| int err = 0; |
| |
| if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { |
| goto exit; |
| } |
| |
| /* OK. For now, we presume we have a valid client. We now create the |
| client structure, even though we cannot fill it completely yet. |
| But it allows us to access w83793_{read,write}_value. */ |
| |
| if (!(data = kzalloc(sizeof(struct w83793_data), GFP_KERNEL))) { |
| err = -ENOMEM; |
| goto exit; |
| } |
| |
| client = &data->client; |
| dev = &client->dev; |
| i2c_set_clientdata(client, data); |
| client->addr = address; |
| client->adapter = adapter; |
| client->driver = &w83793_driver; |
| |
| data->bank = i2c_smbus_read_byte_data(client, W83793_REG_BANKSEL); |
| |
| /* Now, we do the remaining detection. */ |
| if (kind < 0) { |
| tmp = data->bank & 0x80 ? 0x5c : 0xa3; |
| /* Check Winbond vendor ID */ |
| if (tmp != i2c_smbus_read_byte_data(client, |
| W83793_REG_VENDORID)) { |
| pr_debug("w83793: Detection failed at check " |
| "vendor id\n"); |
| err = -ENODEV; |
| goto free_mem; |
| } |
| |
| /* If Winbond chip, address of chip and W83793_REG_I2C_ADDR |
| should match */ |
| if ((data->bank & 0x07) == 0 |
| && i2c_smbus_read_byte_data(client, W83793_REG_I2C_ADDR) != |
| (address << 1)) { |
| pr_debug("w83793: Detection failed at check " |
| "i2c addr\n"); |
| err = -ENODEV; |
| goto free_mem; |
| } |
| |
| } |
| |
| /* We have either had a force parameter, or we have already detected the |
| Winbond. Determine the chip type now */ |
| |
| if (kind <= 0) { |
| if (0x7b == w83793_read_value(client, W83793_REG_CHIPID)) { |
| kind = w83793; |
| } else { |
| if (kind == 0) |
| dev_warn(&adapter->dev, "w83793: Ignoring " |
| "'force' parameter for unknown chip " |
| "at address 0x%02x\n", address); |
| err = -ENODEV; |
| goto free_mem; |
| } |
| } |
| |
| /* Fill in the remaining client fields and put into the global list */ |
| strlcpy(client->name, "w83793", I2C_NAME_SIZE); |
| |
| mutex_init(&data->update_lock); |
| |
| /* Tell the I2C layer a new client has arrived */ |
| if ((err = i2c_attach_client(client))) |
| goto free_mem; |
| |
| if ((err = w83793_detect_subclients(adapter, address, kind, client))) |
| goto detach_client; |
| |
| /* Initialize the chip */ |
| w83793_init_client(client); |
| |
| data->vrm = vid_which_vrm(); |
| /* |
| Only fan 1-5 has their own input pins, |
| Pwm 1-3 has their own pins |
| */ |
| data->has_fan = 0x1f; |
| data->has_pwm = 0x07; |
| tmp = w83793_read_value(client, W83793_REG_MFC); |
| val = w83793_read_value(client, W83793_REG_FANIN_CTRL); |
| |
| /* check the function of pins 49-56 */ |
| if (!(tmp & 0x80)) { |
| data->has_pwm |= 0x18; /* pwm 4,5 */ |
| if (val & 0x01) { /* fan 6 */ |
| data->has_fan |= 0x20; |
| data->has_pwm |= 0x20; |
| } |
| if (val & 0x02) { /* fan 7 */ |
| data->has_fan |= 0x40; |
| data->has_pwm |= 0x40; |
| } |
| if (!(tmp & 0x40) && (val & 0x04)) { /* fan 8 */ |
| data->has_fan |= 0x80; |
| data->has_pwm |= 0x80; |
| } |
| } |
| |
| if (0x08 == (tmp & 0x0c)) { |
| if (val & 0x08) /* fan 9 */ |
| data->has_fan |= 0x100; |
| if (val & 0x10) /* fan 10 */ |
| data->has_fan |= 0x200; |
| } |
| |
| if (0x20 == (tmp & 0x30)) { |
| if (val & 0x20) /* fan 11 */ |
| data->has_fan |= 0x400; |
| if (val & 0x40) /* fan 12 */ |
| data->has_fan |= 0x800; |
| } |
| |
| if ((tmp & 0x01) && (val & 0x04)) { /* fan 8, second location */ |
| data->has_fan |= 0x80; |
| data->has_pwm |= 0x80; |
| } |
| |
| /* check the temp1-6 mode, ignore former AMDSI selected inputs */ |
| tmp = w83793_read_value(client,W83793_REG_TEMP_MODE[0]); |
| if (tmp & 0x01) |
| data->has_temp |= 0x01; |
| if (tmp & 0x04) |
| data->has_temp |= 0x02; |
| if (tmp & 0x10) |
| data->has_temp |= 0x04; |
| if (tmp & 0x40) |
| data->has_temp |= 0x08; |
| |
| tmp = w83793_read_value(client,W83793_REG_TEMP_MODE[1]); |
| if (tmp & 0x01) |
| data->has_temp |= 0x10; |
| if (tmp & 0x02) |
| data->has_temp |= 0x20; |
| |
| /* Register sysfs hooks */ |
| for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++) { |
| err = device_create_file(dev, |
| &w83793_sensor_attr_2[i].dev_attr); |
| if (err) |
| goto exit_remove; |
| } |
| |
| for (i = 0; i < ARRAY_SIZE(sda_single_files); i++) { |
| err = device_create_file(dev, &sda_single_files[i].dev_attr); |
| if (err) |
| goto exit_remove; |
| |
| } |
| |
| for (i = 0; i < 6; i++) { |
| int j; |
| if (!(data->has_temp & (1 << i))) |
| continue; |
| for (j = 0; j < files_temp; j++) { |
| err = device_create_file(dev, |
| &w83793_temp[(i) * files_temp |
| + j].dev_attr); |
| if (err) |
| goto exit_remove; |
| } |
| } |
| |
| for (i = 5; i < 12; i++) { |
| int j; |
| if (!(data->has_fan & (1 << i))) |
| continue; |
| for (j = 0; j < files_fan; j++) { |
| err = device_create_file(dev, |
| &w83793_left_fan[(i - 5) * files_fan |
| + j].dev_attr); |
| if (err) |
| goto exit_remove; |
| } |
| } |
| |
| for (i = 3; i < 8; i++) { |
| int j; |
| if (!(data->has_pwm & (1 << i))) |
| continue; |
| for (j = 0; j < files_pwm; j++) { |
| err = device_create_file(dev, |
| &w83793_left_pwm[(i - 3) * files_pwm |
| + j].dev_attr); |
| if (err) |
| goto exit_remove; |
| } |
| } |
| |
| data->class_dev = hwmon_device_register(dev); |
| if (IS_ERR(data->class_dev)) { |
| err = PTR_ERR(data->class_dev); |
| goto exit_remove; |
| } |
| |
| return 0; |
| |
| /* Unregister sysfs hooks */ |
| |
| exit_remove: |
| for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++) |
| device_remove_file(dev, &w83793_sensor_attr_2[i].dev_attr); |
| |
| for (i = 0; i < ARRAY_SIZE(sda_single_files); i++) |
| device_remove_file(dev, &sda_single_files[i].dev_attr); |
| |
| for (i = 0; i < ARRAY_SIZE(w83793_left_fan); i++) |
| device_remove_file(dev, &w83793_left_fan[i].dev_attr); |
| |
| for (i = 0; i < ARRAY_SIZE(w83793_left_pwm); i++) |
| device_remove_file(dev, &w83793_left_pwm[i].dev_attr); |
| |
| for (i = 0; i < ARRAY_SIZE(w83793_temp); i++) |
| device_remove_file(dev, &w83793_temp[i].dev_attr); |
| |
| if (data->lm75[0] != NULL) { |
| i2c_detach_client(data->lm75[0]); |
| kfree(data->lm75[0]); |
| } |
| if (data->lm75[1] != NULL) { |
| i2c_detach_client(data->lm75[1]); |
| kfree(data->lm75[1]); |
| } |
| detach_client: |
| i2c_detach_client(client); |
| free_mem: |
| kfree(data); |
| exit: |
| return err; |
| } |
| |
| static void w83793_update_nonvolatile(struct device *dev) |
| { |
| struct i2c_client *client = to_i2c_client(dev); |
| struct w83793_data *data = i2c_get_clientdata(client); |
| int i, j; |
| /* |
| They are somewhat "stable" registers, and to update them everytime |
| takes so much time, it's just not worthy. Update them in a long |
| interval to avoid exception. |
| */ |
| if (!(time_after(jiffies, data->last_nonvolatile + HZ * 300) |
| || !data->valid)) |
| return; |
| /* update voltage limits */ |
| for (i = 1; i < 3; i++) { |
| for (j = 0; j < ARRAY_SIZE(data->in); j++) { |
| data->in[j][i] = |
| w83793_read_value(client, W83793_REG_IN[j][i]); |
| } |
| data->in_low_bits[i] = |
| w83793_read_value(client, W83793_REG_IN_LOW_BITS[i]); |
| } |
| |
| for (i = 0; i < ARRAY_SIZE(data->fan_min); i++) { |
| /* Update the Fan measured value and limits */ |
| if (!(data->has_fan & (1 << i))) { |
| continue; |
| } |
| data->fan_min[i] = |
| w83793_read_value(client, W83793_REG_FAN_MIN(i)) << 8; |
| data->fan_min[i] |= |
| w83793_read_value(client, W83793_REG_FAN_MIN(i) + 1); |
| } |
| |
| for (i = 0; i < ARRAY_SIZE(data->temp_fan_map); i++) { |
| if (!(data->has_temp & (1 << i))) |
| continue; |
| data->temp_fan_map[i] = |
| w83793_read_value(client, W83793_REG_TEMP_FAN_MAP(i)); |
| for (j = 1; j < 5; j++) { |
| data->temp[i][j] = |
| w83793_read_value(client, W83793_REG_TEMP[i][j]); |
| } |
| data->temp_cruise[i] = |
| w83793_read_value(client, W83793_REG_TEMP_CRUISE(i)); |
| for (j = 0; j < 7; j++) { |
| data->sf2_pwm[i][j] = |
| w83793_read_value(client, W83793_REG_SF2_PWM(i, j)); |
| data->sf2_temp[i][j] = |
| w83793_read_value(client, |
| W83793_REG_SF2_TEMP(i, j)); |
| } |
| } |
| |
| for (i = 0; i < ARRAY_SIZE(data->temp_mode); i++) |
| data->temp_mode[i] = |
| w83793_read_value(client, W83793_REG_TEMP_MODE[i]); |
| |
| for (i = 0; i < ARRAY_SIZE(data->tolerance); i++) { |
| data->tolerance[i] = |
| w83793_read_value(client, W83793_REG_TEMP_TOL(i)); |
| } |
| |
| for (i = 0; i < ARRAY_SIZE(data->pwm); i++) { |
| if (!(data->has_pwm & (1 << i))) |
| continue; |
| data->pwm[i][PWM_NONSTOP] = |
| w83793_read_value(client, W83793_REG_PWM(i, PWM_NONSTOP)); |
| data->pwm[i][PWM_START] = |
| w83793_read_value(client, W83793_REG_PWM(i, PWM_START)); |
| data->pwm_stop_time[i] = |
| w83793_read_value(client, W83793_REG_PWM_STOP_TIME(i)); |
| } |
| |
| data->pwm_default = w83793_read_value(client, W83793_REG_PWM_DEFAULT); |
| data->pwm_enable = w83793_read_value(client, W83793_REG_PWM_ENABLE); |
| data->pwm_uptime = w83793_read_value(client, W83793_REG_PWM_UPTIME); |
| data->pwm_downtime = w83793_read_value(client, W83793_REG_PWM_DOWNTIME); |
| data->temp_critical = |
| w83793_read_value(client, W83793_REG_TEMP_CRITICAL); |
| data->beep_enable = w83793_read_value(client, W83793_REG_OVT_BEEP); |
| |
| for (i = 0; i < ARRAY_SIZE(data->beeps); i++) { |
| data->beeps[i] = w83793_read_value(client, W83793_REG_BEEP(i)); |
| } |
| |
| data->last_nonvolatile = jiffies; |
| } |
| |
| static struct w83793_data *w83793_update_device(struct device *dev) |
| { |
| struct i2c_client *client = to_i2c_client(dev); |
| struct w83793_data *data = i2c_get_clientdata(client); |
| int i; |
| |
| mutex_lock(&data->update_lock); |
| |
| if (!(time_after(jiffies, data->last_updated + HZ * 2) |
| || !data->valid)) |
| goto END; |
| |
| /* Update the voltages measured value and limits */ |
| for (i = 0; i < ARRAY_SIZE(data->in); i++) |
| data->in[i][IN_READ] = |
| w83793_read_value(client, W83793_REG_IN[i][IN_READ]); |
| |
| data->in_low_bits[IN_READ] = |
| w83793_read_value(client, W83793_REG_IN_LOW_BITS[IN_READ]); |
| |
| for (i = 0; i < ARRAY_SIZE(data->fan); i++) { |
| if (!(data->has_fan & (1 << i))) { |
| continue; |
| } |
| data->fan[i] = |
| w83793_read_value(client, W83793_REG_FAN(i)) << 8; |
| data->fan[i] |= |
| w83793_read_value(client, W83793_REG_FAN(i) + 1); |
| } |
| |
| for (i = 0; i < ARRAY_SIZE(data->temp); i++) { |
| if (!(data->has_temp & (1 << i))) |
| continue; |
| data->temp[i][TEMP_READ] = |
| w83793_read_value(client, W83793_REG_TEMP[i][TEMP_READ]); |
| } |
| |
| data->temp_low_bits = |
| w83793_read_value(client, W83793_REG_TEMP_LOW_BITS); |
| |
| for (i = 0; i < ARRAY_SIZE(data->pwm); i++) { |
| if (data->has_pwm & (1 << i)) |
| data->pwm[i][PWM_DUTY] = |
| w83793_read_value(client, |
| W83793_REG_PWM(i, PWM_DUTY)); |
| } |
| |
| for (i = 0; i < ARRAY_SIZE(data->alarms); i++) |
| data->alarms[i] = |
| w83793_read_value(client, W83793_REG_ALARM(i)); |
| data->vid[0] = w83793_read_value(client, W83793_REG_VID_INA); |
| data->vid[1] = w83793_read_value(client, W83793_REG_VID_INB); |
| w83793_update_nonvolatile(dev); |
| data->last_updated = jiffies; |
| data->valid = 1; |
| |
| END: |
| mutex_unlock(&data->update_lock); |
| return data; |
| } |
| |
| /* Ignore the possibility that somebody change bank outside the driver |
| Must be called with data->update_lock held, except during initialization */ |
| static u8 w83793_read_value(struct i2c_client *client, u16 reg) |
| { |
| struct w83793_data *data = i2c_get_clientdata(client); |
| u8 res = 0xff; |
| u8 new_bank = reg >> 8; |
| |
| new_bank |= data->bank & 0xfc; |
| if (data->bank != new_bank) { |
| if (i2c_smbus_write_byte_data |
| (client, W83793_REG_BANKSEL, new_bank) >= 0) |
| data->bank = new_bank; |
| else { |
| dev_err(&client->dev, |
| "set bank to %d failed, fall back " |
| "to bank %d, read reg 0x%x error\n", |
| new_bank, data->bank, reg); |
| res = 0x0; /* read 0x0 from the chip */ |
| goto END; |
| } |
| } |
| res = i2c_smbus_read_byte_data(client, reg & 0xff); |
| END: |
| return res; |
| } |
| |
| /* Must be called with data->update_lock held, except during initialization */ |
| static int w83793_write_value(struct i2c_client *client, u16 reg, u8 value) |
| { |
| struct w83793_data *data = i2c_get_clientdata(client); |
| int res; |
| u8 new_bank = reg >> 8; |
| |
| new_bank |= data->bank & 0xfc; |
| if (data->bank != new_bank) { |
| if ((res = i2c_smbus_write_byte_data |
| (client, W83793_REG_BANKSEL, new_bank)) >= 0) |
| data->bank = new_bank; |
| else { |
| dev_err(&client->dev, |
| "set bank to %d failed, fall back " |
| "to bank %d, write reg 0x%x error\n", |
| new_bank, data->bank, reg); |
| goto END; |
| } |
| } |
| |
| res = i2c_smbus_write_byte_data(client, reg & 0xff, value); |
| END: |
| return res; |
| } |
| |
| static int __init sensors_w83793_init(void) |
| { |
| return i2c_add_driver(&w83793_driver); |
| } |
| |
| static void __exit sensors_w83793_exit(void) |
| { |
| i2c_del_driver(&w83793_driver); |
| } |
| |
| MODULE_AUTHOR("Yuan Mu"); |
| MODULE_DESCRIPTION("w83793 driver"); |
| MODULE_LICENSE("GPL"); |
| |
| module_init(sensors_w83793_init); |
| module_exit(sensors_w83793_exit); |