diff options
Diffstat (limited to 'drivers/hwmon/lm63.c')
| -rw-r--r-- | drivers/hwmon/lm63.c | 592 |
1 files changed, 529 insertions, 63 deletions
diff --git a/drivers/hwmon/lm63.c b/drivers/hwmon/lm63.c index 508cb29..5e6457a 100644 --- a/drivers/hwmon/lm63.c +++ b/drivers/hwmon/lm63.c @@ -47,10 +47,14 @@ #include <linux/err.h> #include <linux/mutex.h> #include <linux/sysfs.h> +#include <linux/types.h> /* * Addresses to scan - * Address is fully defined internally and cannot be changed. + * Address is fully defined internally and cannot be changed except for + * LM64 which has one pin dedicated to address selection. + * LM63 and LM96163 have address 0x4c. + * LM64 can have address 0x18 or 0x4e. */ static const unsigned short normal_i2c[] = { 0x18, 0x4c, 0x4e, I2C_CLIENT_END }; @@ -60,6 +64,7 @@ static const unsigned short normal_i2c[] = { 0x18, 0x4c, 0x4e, I2C_CLIENT_END }; */ #define LM63_REG_CONFIG1 0x03 +#define LM63_REG_CONVRATE 0x04 #define LM63_REG_CONFIG2 0xBF #define LM63_REG_CONFIG_FAN 0x4A @@ -70,6 +75,9 @@ static const unsigned short normal_i2c[] = { 0x18, 0x4c, 0x4e, I2C_CLIENT_END }; #define LM63_REG_PWM_VALUE 0x4C #define LM63_REG_PWM_FREQ 0x4D +#define LM63_REG_LUT_TEMP_HYST 0x4F +#define LM63_REG_LUT_TEMP(nr) (0x50 + 2 * (nr)) +#define LM63_REG_LUT_PWM(nr) (0x51 + 2 * (nr)) #define LM63_REG_LOCAL_TEMP 0x00 #define LM63_REG_LOCAL_HIGH 0x05 @@ -91,6 +99,16 @@ static const unsigned short normal_i2c[] = { 0x18, 0x4c, 0x4e, I2C_CLIENT_END }; #define LM63_REG_MAN_ID 0xFE #define LM63_REG_CHIP_ID 0xFF +#define LM96163_REG_TRUTHERM 0x30 +#define LM96163_REG_REMOTE_TEMP_U_MSB 0x31 +#define LM96163_REG_REMOTE_TEMP_U_LSB 0x32 +#define LM96163_REG_CONFIG_ENHANCED 0x45 + +#define LM63_MAX_CONVRATE 9 + +#define LM63_MAX_CONVRATE_HZ 32 +#define LM96163_MAX_CONVRATE_HZ 26 + /* * Conversions and various macros * For tachometer counts, the LM63 uses 16-bit values. @@ -112,15 +130,24 @@ static const unsigned short normal_i2c[] = { 0x18, 0x4c, 0x4e, I2C_CLIENT_END }; (val) >= 127000 ? 127 : \ (val) < 0 ? ((val) - 500) / 1000 : \ ((val) + 500) / 1000) +#define TEMP8U_TO_REG(val) ((val) <= 0 ? 0 : \ + (val) >= 255000 ? 255 : \ + ((val) + 500) / 1000) #define TEMP11_FROM_REG(reg) ((reg) / 32 * 125) #define TEMP11_TO_REG(val) ((val) <= -128000 ? 0x8000 : \ (val) >= 127875 ? 0x7FE0 : \ (val) < 0 ? ((val) - 62) / 125 * 32 : \ ((val) + 62) / 125 * 32) +#define TEMP11U_TO_REG(val) ((val) <= 0 ? 0 : \ + (val) >= 255875 ? 0xFFE0 : \ + ((val) + 62) / 125 * 32) #define HYST_TO_REG(val) ((val) <= 0 ? 0 : \ (val) >= 127000 ? 127 : \ ((val) + 500) / 1000) +#define UPDATE_INTERVAL(max, rate) \ + ((1000 << (LM63_MAX_CONVRATE - (rate))) / (max)) + /* * Functions declaration */ @@ -134,7 +161,7 @@ static struct lm63_data *lm63_update_device(struct device *dev); static int lm63_detect(struct i2c_client *client, struct i2c_board_info *info); static void lm63_init_client(struct i2c_client *client); -enum chips { lm63, lm64 }; +enum chips { lm63, lm64, lm96163 }; /* * Driver data (common to all clients) @@ -143,6 +170,7 @@ enum chips { lm63, lm64 }; static const struct i2c_device_id lm63_id[] = { { "lm63", lm63 }, { "lm64", lm64 }, + { "lm96163", lm96163 }, { } }; MODULE_DEVICE_TABLE(i2c, lm63_id); @@ -167,26 +195,53 @@ struct lm63_data { struct device *hwmon_dev; struct mutex update_lock; char valid; /* zero until following fields are valid */ + char lut_valid; /* zero until lut fields are valid */ unsigned long last_updated; /* in jiffies */ - int kind; + unsigned long lut_last_updated; /* in jiffies */ + enum chips kind; int temp2_offset; + int update_interval; /* in milliseconds */ + int max_convrate_hz; + int lut_size; /* 8 or 12 */ + /* registers values */ u8 config, config_fan; u16 fan[2]; /* 0: input 1: low limit */ u8 pwm1_freq; - u8 pwm1_value; - s8 temp8[3]; /* 0: local input + u8 pwm1[13]; /* 0: current output + 1-12: lookup table */ + s8 temp8[15]; /* 0: local input 1: local high limit - 2: remote critical limit */ - s16 temp11[3]; /* 0: remote input + 2: remote critical limit + 3-14: lookup table */ + s16 temp11[4]; /* 0: remote input 1: remote low limit - 2: remote high limit */ + 2: remote high limit + 3: remote offset */ + u16 temp11u; /* remote input (unsigned) */ u8 temp2_crit_hyst; + u8 lut_temp_hyst; u8 alarms; + bool pwm_highres; + bool lut_temp_highres; + bool remote_unsigned; /* true if unsigned remote upper limits */ + bool trutherm; }; +static inline int temp8_from_reg(struct lm63_data *data, int nr) +{ + if (data->remote_unsigned) + return TEMP8_FROM_REG((u8)data->temp8[nr]); + return TEMP8_FROM_REG(data->temp8[nr]); +} + +static inline int lut_temp_from_reg(struct lm63_data *data, int nr) +{ + return data->temp8[nr] * (data->lut_temp_highres ? 500 : 1000); +} + /* * Sysfs callback functions and files */ @@ -204,7 +259,12 @@ static ssize_t set_fan(struct device *dev, struct device_attribute *dummy, { struct i2c_client *client = to_i2c_client(dev); struct lm63_data *data = i2c_get_clientdata(client); - unsigned long val = simple_strtoul(buf, NULL, 10); + unsigned long val; + int err; + + err = kstrtoul(buf, 10, &val); + if (err) + return err; mutex_lock(&data->update_lock); data->fan[1] = FAN_TO_REG(val); @@ -216,13 +276,22 @@ static ssize_t set_fan(struct device *dev, struct device_attribute *dummy, return count; } -static ssize_t show_pwm1(struct device *dev, struct device_attribute *dummy, +static ssize_t show_pwm1(struct device *dev, struct device_attribute *devattr, char *buf) { + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct lm63_data *data = lm63_update_device(dev); - return sprintf(buf, "%d\n", data->pwm1_value >= 2 * data->pwm1_freq ? - 255 : (data->pwm1_value * 255 + data->pwm1_freq) / - (2 * data->pwm1_freq)); + int nr = attr->index; + int pwm; + + if (data->pwm_highres) + pwm = data->pwm1[nr]; + else + pwm = data->pwm1[nr] >= 2 * data->pwm1_freq ? + 255 : (data->pwm1[nr] * 255 + data->pwm1_freq) / + (2 * data->pwm1_freq); + + return sprintf(buf, "%d\n", pwm); } static ssize_t set_pwm1(struct device *dev, struct device_attribute *dummy, @@ -231,22 +300,26 @@ static ssize_t set_pwm1(struct device *dev, struct device_attribute *dummy, struct i2c_client *client = to_i2c_client(dev); struct lm63_data *data = i2c_get_clientdata(client); unsigned long val; - + int err; + if (!(data->config_fan & 0x20)) /* register is read-only */ return -EPERM; - val = simple_strtoul(buf, NULL, 10); + err = kstrtoul(buf, 10, &val); + if (err) + return err; + + val = SENSORS_LIMIT(val, 0, 255); mutex_lock(&data->update_lock); - data->pwm1_value = val <= 0 ? 0 : - val >= 255 ? 2 * data->pwm1_freq : - (val * data->pwm1_freq * 2 + 127) / 255; - i2c_smbus_write_byte_data(client, LM63_REG_PWM_VALUE, data->pwm1_value); + data->pwm1[0] = data->pwm_highres ? val : + (val * data->pwm1_freq * 2 + 127) / 255; + i2c_smbus_write_byte_data(client, LM63_REG_PWM_VALUE, data->pwm1[0]); mutex_unlock(&data->update_lock); return count; } -static ssize_t show_pwm1_enable(struct device *dev, struct device_attribute *dummy, - char *buf) +static ssize_t show_pwm1_enable(struct device *dev, + struct device_attribute *dummy, char *buf) { struct lm63_data *data = lm63_update_device(dev); return sprintf(buf, "%d\n", data->config_fan & 0x20 ? 1 : 2); @@ -273,21 +346,47 @@ static ssize_t show_remote_temp8(struct device *dev, { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct lm63_data *data = lm63_update_device(dev); - return sprintf(buf, "%d\n", TEMP8_FROM_REG(data->temp8[attr->index]) + return sprintf(buf, "%d\n", temp8_from_reg(data, attr->index) + + data->temp2_offset); +} + +static ssize_t show_lut_temp(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct lm63_data *data = lm63_update_device(dev); + return sprintf(buf, "%d\n", lut_temp_from_reg(data, attr->index) + data->temp2_offset); } -static ssize_t set_local_temp8(struct device *dev, - struct device_attribute *dummy, - const char *buf, size_t count) +static ssize_t set_temp8(struct device *dev, struct device_attribute *devattr, + const char *buf, size_t count) { + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct i2c_client *client = to_i2c_client(dev); struct lm63_data *data = i2c_get_clientdata(client); - long val = simple_strtol(buf, NULL, 10); + int nr = attr->index; + int reg = nr == 2 ? LM63_REG_REMOTE_TCRIT : LM63_REG_LOCAL_HIGH; + long val; + int err; + int temp; + + err = kstrtol(buf, 10, &val); + if (err) + return err; mutex_lock(&data->update_lock); - data->temp8[1] = TEMP8_TO_REG(val); - i2c_smbus_write_byte_data(client, LM63_REG_LOCAL_HIGH, data->temp8[1]); + if (nr == 2) { + if (data->remote_unsigned) + temp = TEMP8U_TO_REG(val - data->temp2_offset); + else + temp = TEMP8_TO_REG(val - data->temp2_offset); + } else { + temp = TEMP8_TO_REG(val); + } + data->temp8[nr] = temp; + i2c_smbus_write_byte_data(client, reg, temp); mutex_unlock(&data->update_lock); return count; } @@ -297,28 +396,56 @@ static ssize_t show_temp11(struct device *dev, struct device_attribute *devattr, { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct lm63_data *data = lm63_update_device(dev); - return sprintf(buf, "%d\n", TEMP11_FROM_REG(data->temp11[attr->index]) - + data->temp2_offset); + int nr = attr->index; + int temp; + + if (!nr) { + /* + * Use unsigned temperature unless its value is zero. + * If it is zero, use signed temperature. + */ + if (data->temp11u) + temp = TEMP11_FROM_REG(data->temp11u); + else + temp = TEMP11_FROM_REG(data->temp11[nr]); + } else { + if (data->remote_unsigned && nr == 2) + temp = TEMP11_FROM_REG((u16)data->temp11[nr]); + else + temp = TEMP11_FROM_REG(data->temp11[nr]); + } + return sprintf(buf, "%d\n", temp + data->temp2_offset); } static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { - static const u8 reg[4] = { + static const u8 reg[6] = { LM63_REG_REMOTE_LOW_MSB, LM63_REG_REMOTE_LOW_LSB, LM63_REG_REMOTE_HIGH_MSB, LM63_REG_REMOTE_HIGH_LSB, + LM63_REG_REMOTE_OFFSET_MSB, + LM63_REG_REMOTE_OFFSET_LSB, }; struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct i2c_client *client = to_i2c_client(dev); struct lm63_data *data = i2c_get_clientdata(client); - long val = simple_strtol(buf, NULL, 10); + long val; + int err; int nr = attr->index; + err = kstrtol(buf, 10, &val); + if (err) + return err; + mutex_lock(&data->update_lock); - data->temp11[nr] = TEMP11_TO_REG(val - data->temp2_offset); + if (data->remote_unsigned && nr == 2) + data->temp11[nr] = TEMP11U_TO_REG(val - data->temp2_offset); + else + data->temp11[nr] = TEMP11_TO_REG(val - data->temp2_offset); + i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2], data->temp11[nr] >> 8); i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2 + 1], @@ -327,35 +454,143 @@ static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr, return count; } -/* Hysteresis register holds a relative value, while we want to present - an absolute to user-space */ -static ssize_t show_temp2_crit_hyst(struct device *dev, struct device_attribute *dummy, - char *buf) +/* + * Hysteresis register holds a relative value, while we want to present + * an absolute to user-space + */ +static ssize_t show_temp2_crit_hyst(struct device *dev, + struct device_attribute *dummy, char *buf) { struct lm63_data *data = lm63_update_device(dev); - return sprintf(buf, "%d\n", TEMP8_FROM_REG(data->temp8[2]) + return sprintf(buf, "%d\n", temp8_from_reg(data, 2) + data->temp2_offset - TEMP8_FROM_REG(data->temp2_crit_hyst)); } -/* And now the other way around, user-space provides an absolute - hysteresis value and we have to store a relative one */ -static ssize_t set_temp2_crit_hyst(struct device *dev, struct device_attribute *dummy, +static ssize_t show_lut_temp_hyst(struct device *dev, + struct device_attribute *devattr, char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct lm63_data *data = lm63_update_device(dev); + + return sprintf(buf, "%d\n", lut_temp_from_reg(data, attr->index) + + data->temp2_offset + - TEMP8_FROM_REG(data->lut_temp_hyst)); +} + +/* + * And now the other way around, user-space provides an absolute + * hysteresis value and we have to store a relative one + */ +static ssize_t set_temp2_crit_hyst(struct device *dev, + struct device_attribute *dummy, const char *buf, size_t count) { struct i2c_client *client = to_i2c_client(dev); struct lm63_data *data = i2c_get_clientdata(client); - long val = simple_strtol(buf, NULL, 10); + long val; + int err; long hyst; + err = kstrtol(buf, 10, &val); + if (err) + return err; + mutex_lock(&data->update_lock); - hyst = TEMP8_FROM_REG(data->temp8[2]) + data->temp2_offset - val; + hyst = temp8_from_reg(data, 2) + data->temp2_offset - val; i2c_smbus_write_byte_data(client, LM63_REG_REMOTE_TCRIT_HYST, HYST_TO_REG(hyst)); mutex_unlock(&data->update_lock); return count; } +/* + * Set conversion rate. + * client->update_lock must be held when calling this function. + */ +static void lm63_set_convrate(struct i2c_client *client, struct lm63_data *data, + unsigned int interval) +{ + int i; + unsigned int update_interval; + + /* Shift calculations to avoid rounding errors */ + interval <<= 6; + + /* find the nearest update rate */ + update_interval = (1 << (LM63_MAX_CONVRATE + 6)) * 1000 + / data->max_convrate_hz; + for (i = 0; i < LM63_MAX_CONVRATE; i++, update_interval >>= 1) + if (interval >= update_interval * 3 / 4) + break; + + i2c_smbus_write_byte_data(client, LM63_REG_CONVRATE, i); + data->update_interval = UPDATE_INTERVAL(data->max_convrate_hz, i); +} + +static ssize_t show_update_interval(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct lm63_data *data = dev_get_drvdata(dev); + + return sprintf(buf, "%u\n", data->update_interval); +} + +static ssize_t set_update_interval(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm63_data *data = i2c_get_clientdata(client); + unsigned long val; + int err; + + err = kstrtoul(buf, 10, &val); + if (err) + return err; + + mutex_lock(&data->update_lock); + lm63_set_convrate(client, data, SENSORS_LIMIT(val, 0, 100000)); + mutex_unlock(&data->update_lock); + + return count; +} + +static ssize_t show_type(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm63_data *data = i2c_get_clientdata(client); + + return sprintf(buf, data->trutherm ? "1\n" : "2\n"); +} + +static ssize_t set_type(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm63_data *data = i2c_get_clientdata(client); + unsigned long val; + int ret; + u8 reg; + + ret = kstrtoul(buf, 10, &val); + if (ret < 0) + return ret; + if (val != 1 && val != 2) + return -EINVAL; + + mutex_lock(&data->update_lock); + data->trutherm = val == 1; + reg = i2c_smbus_read_byte_data(client, LM96163_REG_TRUTHERM) & ~0x02; + i2c_smbus_write_byte_data(client, LM96163_REG_TRUTHERM, + reg | (data->trutherm ? 0x02 : 0x00)); + data->valid = 0; + mutex_unlock(&data->update_lock); + + return count; +} + static ssize_t show_alarms(struct device *dev, struct device_attribute *dummy, char *buf) { @@ -377,27 +612,87 @@ static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0); static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan, set_fan, 1); -static DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm1, set_pwm1); +static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm1, set_pwm1, 0); static DEVICE_ATTR(pwm1_enable, S_IRUGO, show_pwm1_enable, NULL); +static SENSOR_DEVICE_ATTR(pwm1_auto_point1_pwm, S_IRUGO, show_pwm1, NULL, 1); +static SENSOR_DEVICE_ATTR(pwm1_auto_point1_temp, S_IRUGO, + show_lut_temp, NULL, 3); +static SENSOR_DEVICE_ATTR(pwm1_auto_point1_temp_hyst, S_IRUGO, + show_lut_temp_hyst, NULL, 3); +static SENSOR_DEVICE_ATTR(pwm1_auto_point2_pwm, S_IRUGO, show_pwm1, NULL, 2); +static SENSOR_DEVICE_ATTR(pwm1_auto_point2_temp, S_IRUGO, + show_lut_temp, NULL, 4); +static SENSOR_DEVICE_ATTR(pwm1_auto_point2_temp_hyst, S_IRUGO, + show_lut_temp_hyst, NULL, 4); +static SENSOR_DEVICE_ATTR(pwm1_auto_point3_pwm, S_IRUGO, show_pwm1, NULL, 3); +static SENSOR_DEVICE_ATTR(pwm1_auto_point3_temp, S_IRUGO, + show_lut_temp, NULL, 5); +static SENSOR_DEVICE_ATTR(pwm1_auto_point3_temp_hyst, S_IRUGO, + show_lut_temp_hyst, NULL, 5); +static SENSOR_DEVICE_ATTR(pwm1_auto_point4_pwm, S_IRUGO, show_pwm1, NULL, 4); +static SENSOR_DEVICE_ATTR(pwm1_auto_point4_temp, S_IRUGO, + show_lut_temp, NULL, 6); +static SENSOR_DEVICE_ATTR(pwm1_auto_point4_temp_hyst, S_IRUGO, + show_lut_temp_hyst, NULL, 6); +static SENSOR_DEVICE_ATTR(pwm1_auto_point5_pwm, S_IRUGO, show_pwm1, NULL, 5); +static SENSOR_DEVICE_ATTR(pwm1_auto_point5_temp, S_IRUGO, + show_lut_temp, NULL, 7); +static SENSOR_DEVICE_ATTR(pwm1_auto_point5_temp_hyst, S_IRUGO, + show_lut_temp_hyst, NULL, 7); +static SENSOR_DEVICE_ATTR(pwm1_auto_point6_pwm, S_IRUGO, show_pwm1, NULL, 6); +static SENSOR_DEVICE_ATTR(pwm1_auto_point6_temp, S_IRUGO, + show_lut_temp, NULL, 8); +static SENSOR_DEVICE_ATTR(pwm1_auto_point6_temp_hyst, S_IRUGO, + show_lut_temp_hyst, NULL, 8); +static SENSOR_DEVICE_ATTR(pwm1_auto_point7_pwm, S_IRUGO, show_pwm1, NULL, 7); +static SENSOR_DEVICE_ATTR(pwm1_auto_point7_temp, S_IRUGO, + show_lut_temp, NULL, 9); +static SENSOR_DEVICE_ATTR(pwm1_auto_point7_temp_hyst, S_IRUGO, + show_lut_temp_hyst, NULL, 9); +static SENSOR_DEVICE_ATTR(pwm1_auto_point8_pwm, S_IRUGO, show_pwm1, NULL, 8); +static SENSOR_DEVICE_ATTR(pwm1_auto_point8_temp, S_IRUGO, + show_lut_temp, NULL, 10); +static SENSOR_DEVICE_ATTR(pwm1_auto_point8_temp_hyst, S_IRUGO, + show_lut_temp_hyst, NULL, 10); +static SENSOR_DEVICE_ATTR(pwm1_auto_point9_pwm, S_IRUGO, show_pwm1, NULL, 9); +static SENSOR_DEVICE_ATTR(pwm1_auto_point9_temp, S_IRUGO, + show_lut_temp, NULL, 11); +static SENSOR_DEVICE_ATTR(pwm1_auto_point9_temp_hyst, S_IRUGO, + show_lut_temp_hyst, NULL, 11); +static SENSOR_DEVICE_ATTR(pwm1_auto_point10_pwm, S_IRUGO, show_pwm1, NULL, 10); +static SENSOR_DEVICE_ATTR(pwm1_auto_point10_temp, S_IRUGO, + show_lut_temp, NULL, 12); +static SENSOR_DEVICE_ATTR(pwm1_auto_point10_temp_hyst, S_IRUGO, + show_lut_temp_hyst, NULL, 12); +static SENSOR_DEVICE_ATTR(pwm1_auto_point11_pwm, S_IRUGO, show_pwm1, NULL, 11); +static SENSOR_DEVICE_ATTR(pwm1_auto_point11_temp, S_IRUGO, + show_lut_temp, NULL, 13); +static SENSOR_DEVICE_ATTR(pwm1_auto_point11_temp_hyst, S_IRUGO, + show_lut_temp_hyst, NULL, 13); +static SENSOR_DEVICE_ATTR(pwm1_auto_point12_pwm, S_IRUGO, show_pwm1, NULL, 12); +static SENSOR_DEVICE_ATTR(pwm1_auto_point12_temp, S_IRUGO, + show_lut_temp, NULL, 14); +static SENSOR_DEVICE_ATTR(pwm1_auto_point12_temp_hyst, S_IRUGO, + show_lut_temp_hyst, NULL, 14); static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_local_temp8, NULL, 0); static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_local_temp8, - set_local_temp8, 1); + set_temp8, 1); static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp11, NULL, 0); static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp11, set_temp11, 1); static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp11, set_temp11, 2); -/* - * On LM63, temp2_crit can be set only once, which should be job - * of the bootloader. - */ +static SENSOR_DEVICE_ATTR(temp2_offset, S_IWUSR | S_IRUGO, show_temp11, + set_temp11, 3); static SENSOR_DEVICE_ATTR(temp2_crit, S_IRUGO, show_remote_temp8, - NULL, 2); + set_temp8, 2); static DEVICE_ATTR(temp2_crit_hyst, S_IWUSR | S_IRUGO, show_temp2_crit_hyst, set_temp2_crit_hyst); +static DEVICE_ATTR(temp2_type, S_IWUSR | S_IRUGO, show_type, set_type); + /* Individual alarm files */ static SENSOR_DEVICE_ATTR(fan1_min_alarm, S_IRUGO, show_alarm, NULL, 0); static SENSOR_DEVICE_ATTR(temp2_crit_alarm, S_IRUGO, show_alarm, NULL, 1); @@ -408,14 +703,43 @@ static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 6); /* Raw alarm file for compatibility */ static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); +static DEVICE_ATTR(update_interval, S_IRUGO | S_IWUSR, show_update_interval, + set_update_interval); + static struct attribute *lm63_attributes[] = { - &dev_attr_pwm1.attr, + &sensor_dev_attr_pwm1.dev_attr.attr, &dev_attr_pwm1_enable.attr, + &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point1_temp_hyst.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point2_temp_hyst.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point3_temp_hyst.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point4_temp_hyst.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point5_pwm.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point5_temp.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point5_temp_hyst.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point6_pwm.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point6_temp.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point6_temp_hyst.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point7_pwm.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point7_temp.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point7_temp_hyst.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point8_pwm.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point8_temp.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point8_temp_hyst.dev_attr.attr, + &sensor_dev_attr_temp1_input.dev_attr.attr, &sensor_dev_attr_temp2_input.dev_attr.attr, &sensor_dev_attr_temp2_min.dev_attr.attr, &sensor_dev_attr_temp1_max.dev_attr.attr, &sensor_dev_attr_temp2_max.dev_attr.attr, + &sensor_dev_attr_temp2_offset.dev_attr.attr, &sensor_dev_attr_temp2_crit.dev_attr.attr, &dev_attr_temp2_crit_hyst.attr, @@ -425,10 +749,54 @@ static struct attribute *lm63_attributes[] = { &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, &dev_attr_alarms.attr, + &dev_attr_update_interval.attr, NULL }; +static struct attribute *lm63_attributes_extra_lut[] = { + &sensor_dev_attr_pwm1_auto_point9_pwm.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point9_temp.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point9_temp_hyst.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point10_pwm.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point10_temp.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point10_temp_hyst.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point11_pwm.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point11_temp.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point11_temp_hyst.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point12_pwm.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point12_temp.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point12_temp_hyst.dev_attr.attr, + NULL +}; + +static const struct attribute_group lm63_group_extra_lut = { + .attrs = lm63_attributes_extra_lut, +}; + +/* + * On LM63, temp2_crit can be set only once, which should be job + * of the bootloader. + * On LM64, temp2_crit can always be set. + * On LM96163, temp2_crit can be set if bit 1 of the configuration + * register is true. + */ +static umode_t lm63_attribute_mode(struct kobject *kobj, + struct attribute *attr, int index) +{ + struct device *dev = container_of(kobj, struct device, kobj); + struct i2c_client *client = to_i2c_client(dev); + struct lm63_data *data = i2c_get_clientdata(client); + + if (attr == &sensor_dev_attr_temp2_crit.dev_attr.attr + && (data->kind == lm64 || + (data->kind == lm96163 && (data->config & 0x02)))) + return attr->mode | S_IWUSR; + + return attr->mode; +} + static const struct attribute_group lm63_group = { + .is_visible = lm63_attribute_mode, .attrs = lm63_attributes, }; @@ -487,6 +855,8 @@ static int lm63_detect(struct i2c_client *new_client, strlcpy(info->type, "lm63", I2C_NAME_SIZE); else if (chip_id == 0x51 && (address == 0x18 || address == 0x4e)) strlcpy(info->type, "lm64", I2C_NAME_SIZE); + else if (chip_id == 0x49 && address == 0x4c) + strlcpy(info->type, "lm96163", I2C_NAME_SIZE); else return -ENODEV; @@ -518,12 +888,24 @@ static int lm63_probe(struct i2c_client *new_client, lm63_init_client(new_client); /* Register sysfs hooks */ - if ((err = sysfs_create_group(&new_client->dev.kobj, - &lm63_group))) + err = sysfs_create_group(&new_client->dev.kobj, &lm63_group); + if (err) goto exit_free; if (data->config & 0x04) { /* tachometer enabled */ - if ((err = sysfs_create_group(&new_client->dev.kobj, - &lm63_group_fan1))) + err = sysfs_create_group(&new_client->dev.kobj, + &lm63_group_fan1); + if (err) + goto exit_remove_files; + } + if (data->kind == lm96163) { + err = device_create_file(&new_client->dev, + &dev_attr_temp2_type); + if (err) + goto exit_remove_files; + + err = sysfs_create_group(&new_client->dev.kobj, + &lm63_group_extra_lut); + if (err) goto exit_remove_files; } @@ -538,17 +920,25 @@ static int lm63_probe(struct i2c_client *new_client, exit_remove_files: sysfs_remove_group(&new_client->dev.kobj, &lm63_group); sysfs_remove_group(&new_client->dev.kobj, &lm63_group_fan1); + if (data->kind == lm96163) { + device_remove_file(&new_client->dev, &dev_attr_temp2_type); + sysfs_remove_group(&new_client->dev.kobj, + &lm63_group_extra_lut); + } exit_free: kfree(data); exit: return err; } -/* Idealy we shouldn't have to initialize anything, since the BIOS - should have taken care of everything */ +/* + * Ideally we shouldn't have to initialize anything, since the BIOS + * should have taken care of everything + */ static void lm63_init_client(struct i2c_client *client) { struct lm63_data *data = i2c_get_clientdata(client); + u8 convrate; data->config = i2c_smbus_read_byte_data(client, LM63_REG_CONFIG1); data->config_fan = i2c_smbus_read_byte_data(client, @@ -561,16 +951,57 @@ static void lm63_init_client(struct i2c_client *client) i2c_smbus_write_byte_data(client, LM63_REG_CONFIG1, data->config); } + /* Tachometer is always enabled on LM64 */ + if (data->kind == lm64) + data->config |= 0x04; /* We may need pwm1_freq before ever updating the client data */ data->pwm1_freq = i2c_smbus_read_byte_data(client, LM63_REG_PWM_FREQ); if (data->pwm1_freq == 0) data->pwm1_freq = 1; + switch (data->kind) { + case lm63: + case lm64: + data->max_convrate_hz = LM63_MAX_CONVRATE_HZ; + data->lut_size = 8; + break; + case lm96163: + data->max_convrate_hz = LM96163_MAX_CONVRATE_HZ; + data->lut_size = 12; + data->trutherm + = i2c_smbus_read_byte_data(client, + LM96163_REG_TRUTHERM) & 0x02; + break; + } + convrate = i2c_smbus_read_byte_data(client, LM63_REG_CONVRATE); + if (unlikely(convrate > LM63_MAX_CONVRATE)) + convrate = LM63_MAX_CONVRATE; + data->update_interval = UPDATE_INTERVAL(data->max_convrate_hz, + convrate); + + /* + * For LM96163, check if high resolution PWM + * and unsigned temperature format is enabled. + */ + if (data->kind == lm96163) { + u8 config_enhanced + = i2c_smbus_read_byte_data(client, + LM96163_REG_CONFIG_ENHANCED); + if (config_enhanced & 0x20) + data->lut_temp_highres = true; + if ((config_enhanced & 0x10) + && !(data->config_fan & 0x08) && data->pwm1_freq == 8) + data->pwm_highres = true; + if (config_enhanced & 0x08) + data->remote_unsigned = true; + } + /* Show some debug info about the LM63 configuration */ - dev_dbg(&client->dev, "Alert/tach pin configured for %s\n", - (data->config & 0x04) ? "tachometer input" : - "alert output"); + if (data->kind == lm63) + dev_dbg(&client->dev, "Alert/tach pin configured for %s\n", + (data->config & 0x04) ? "tachometer input" : + "alert output"); dev_dbg(&client->dev, "PWM clock %s kHz, output frequency %u Hz\n", (data->config_fan & 0x08) ? "1.4" : "360", ((data->config_fan & 0x08) ? 700 : 180000) / data->pwm1_freq); @@ -586,6 +1017,10 @@ static int lm63_remove(struct i2c_client *client) hwmon_device_unregister(data->hwmon_dev); sysfs_remove_group(&client->dev.kobj, &lm63_group); sysfs_remove_group(&client->dev.kobj, &lm63_group_fan1); + if (data->kind == lm96163) { + device_remove_file(&client->dev, &dev_attr_temp2_type); + sysfs_remove_group(&client->dev.kobj, &lm63_group_extra_lut); + } kfree(data); return 0; @@ -595,10 +1030,15 @@ static struct lm63_data *lm63_update_device(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct lm63_data *data = i2c_get_clientdata(client); + unsigned long next_update; + int i; mutex_lock(&data->update_lock); - if (time_after(jiffies, data->last_updated + HZ) || !data->valid) { + next_update = data->last_updated + + msecs_to_jiffies(data->update_interval) + 1; + + if (time_after(jiffies, next_update) || !data->valid) { if (data->config & 0x04) { /* tachometer enabled */ /* order matters for fan1_input */ data->fan[0] = i2c_smbus_read_byte_data(client, @@ -615,8 +1055,8 @@ static struct lm63_data *lm63_update_device(struct device *dev) LM63_REG_PWM_FREQ); if (data->pwm1_freq == 0) data->pwm1_freq = 1; - data->pwm1_value = i2c_smbus_read_byte_data(client, - LM63_REG_PWM_VALUE); + data->pwm1[0] = i2c_smbus_read_byte_data(client, + LM63_REG_PWM_VALUE); data->temp8[0] = i2c_smbus_read_byte_data(client, LM63_REG_LOCAL_TEMP); @@ -636,6 +1076,17 @@ static struct lm63_data *lm63_update_device(struct device *dev) LM63_REG_REMOTE_HIGH_MSB) << 8) | i2c_smbus_read_byte_data(client, LM63_REG_REMOTE_HIGH_LSB); + data->temp11[3] = (i2c_smbus_read_byte_data(client, + LM63_REG_REMOTE_OFFSET_MSB) << 8) + | i2c_smbus_read_byte_data(client, + LM63_REG_REMOTE_OFFSET_LSB); + + if (data->kind == lm96163) + data->temp11u = (i2c_smbus_read_byte_data(client, + LM96163_REG_REMOTE_TEMP_U_MSB) << 8) + | i2c_smbus_read_byte_data(client, + LM96163_REG_REMOTE_TEMP_U_LSB); + data->temp8[2] = i2c_smbus_read_byte_data(client, LM63_REG_REMOTE_TCRIT); data->temp2_crit_hyst = i2c_smbus_read_byte_data(client, @@ -648,6 +1099,21 @@ static struct lm63_data *lm63_update_device(struct device *dev) data->valid = 1; } + if (time_after(jiffies, data->lut_last_updated + 5 * HZ) || + !data->lut_valid) { + for (i = 0; i < data->lut_size; i++) { + data->pwm1[1 + i] = i2c_smbus_read_byte_data(client, + LM63_REG_LUT_PWM(i)); + data->temp8[3 + i] = i2c_smbus_read_byte_data(client, + LM63_REG_LUT_TEMP(i)); + } + data->lut_temp_hyst = i2c_smbus_read_byte_data(client, + LM63_REG_LUT_TEMP_HYST); + + data->lut_last_updated = jiffies; + data->lut_valid = 1; + } + mutex_unlock(&data->update_lock); return data; |
