diff options
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/lm63.c | 62 |
1 files changed, 51 insertions, 11 deletions
diff --git a/drivers/hwmon/lm63.c b/drivers/hwmon/lm63.c index 3d882c93b46..24a96f89d20 100644 --- a/drivers/hwmon/lm63.c +++ b/drivers/hwmon/lm63.c @@ -92,6 +92,8 @@ 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_REMOTE_TEMP_U_MSB 0x31 +#define LM96163_REG_REMOTE_TEMP_U_LSB 0x32 #define LM96163_REG_CONFIG_ENHANCED 0x45 /* @@ -120,6 +122,9 @@ static const unsigned short normal_i2c[] = { 0x18, 0x4c, 0x4e, I2C_CLIENT_END }; (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) @@ -188,11 +193,20 @@ struct lm63_data { 1: remote low limit 2: remote high limit 3: remote offset */ + u16 temp11u; /* remote input (unsigned) */ u8 temp2_crit_hyst; u8 alarms; bool pwm_highres; + bool remote_unsigned; /* true if unsigned remote upper limits */ }; +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]); +} + /* * Sysfs callback functions and files */ @@ -295,7 +309,7 @@ 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); } @@ -324,8 +338,25 @@ 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, @@ -352,7 +383,11 @@ static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr, 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], @@ -369,7 +404,7 @@ 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)); } @@ -393,7 +428,7 @@ static ssize_t set_temp2_crit_hyst(struct device *dev, 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); @@ -620,9 +655,8 @@ static void lm63_init_client(struct i2c_client *client) data->pwm1_freq = 1; /* - * For LM96163, check if high resolution PWM is enabled. - * Also, check if unsigned temperature format is enabled - * and display a warning message if it is. + * For LM96163, check if high resolution PWM + * and unsigned temperature format is enabled. */ if (data->kind == lm96163) { u8 config_enhanced @@ -632,8 +666,7 @@ static void lm63_init_client(struct i2c_client *client) && !(data->config_fan & 0x08) && data->pwm1_freq == 8) data->pwm_highres = true; if (config_enhanced & 0x08) - dev_warn(&client->dev, - "Unsigned format for High and Crit setpoints enabled but not supported by driver\n"); + data->remote_unsigned = true; } /* Show some debug info about the LM63 configuration */ @@ -709,6 +742,13 @@ static struct lm63_data *lm63_update_device(struct device *dev) 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, |