diff options
Diffstat (limited to 'drivers/hwmon/pmbus/pmbus.h')
| -rw-r--r-- | drivers/hwmon/pmbus/pmbus.h | 39 |
1 files changed, 38 insertions, 1 deletions
diff --git a/drivers/hwmon/pmbus/pmbus.h b/drivers/hwmon/pmbus/pmbus.h index fa613bd209e3..b54d7604d3ef 100644 --- a/drivers/hwmon/pmbus/pmbus.h +++ b/drivers/hwmon/pmbus/pmbus.h @@ -190,6 +190,33 @@ enum pmbus_regs { PMBUS_VIRT_VMON_UV_FAULT_LIMIT, PMBUS_VIRT_VMON_OV_FAULT_LIMIT, PMBUS_VIRT_STATUS_VMON, + + /* + * RPM and PWM Fan control + * + * Drivers wanting to expose PWM control must define the behaviour of + * PMBUS_VIRT_PWM_[1-4] and PMBUS_VIRT_PWM_ENABLE_[1-4] in the + * {read,write}_word_data callback. + * + * pmbus core provides a default implementation for + * PMBUS_VIRT_FAN_TARGET_[1-4]. + * + * TARGET, PWM and PWM_ENABLE members must be defined sequentially; + * pmbus core uses the difference between the provided register and + * it's _1 counterpart to calculate the FAN/PWM ID. + */ + PMBUS_VIRT_FAN_TARGET_1, + PMBUS_VIRT_FAN_TARGET_2, + PMBUS_VIRT_FAN_TARGET_3, + PMBUS_VIRT_FAN_TARGET_4, + PMBUS_VIRT_PWM_1, + PMBUS_VIRT_PWM_2, + PMBUS_VIRT_PWM_3, + PMBUS_VIRT_PWM_4, + PMBUS_VIRT_PWM_ENABLE_1, + PMBUS_VIRT_PWM_ENABLE_2, + PMBUS_VIRT_PWM_ENABLE_3, + PMBUS_VIRT_PWM_ENABLE_4, }; /* @@ -223,6 +250,8 @@ enum pmbus_regs { #define PB_FAN_1_RPM BIT(6) #define PB_FAN_1_INSTALLED BIT(7) +enum pmbus_fan_mode { percent = 0, rpm }; + /* * STATUS_BYTE, STATUS_WORD (lower) */ @@ -313,6 +342,7 @@ enum pmbus_sensor_classes { PSC_POWER, PSC_TEMPERATURE, PSC_FAN, + PSC_PWM, PSC_NUM_CLASSES /* Number of power sensor classes */ }; @@ -339,6 +369,8 @@ enum pmbus_sensor_classes { #define PMBUS_HAVE_STATUS_FAN34 BIT(17) #define PMBUS_HAVE_VMON BIT(18) #define PMBUS_HAVE_STATUS_VMON BIT(19) +#define PMBUS_HAVE_PWM12 BIT(20) +#define PMBUS_HAVE_PWM34 BIT(21) enum pmbus_data_format { linear = 0, direct, vid }; enum vrm_version { vr11 = 0, vr12, vr13 }; @@ -421,5 +453,10 @@ int pmbus_do_probe(struct i2c_client *client, const struct i2c_device_id *id, int pmbus_do_remove(struct i2c_client *client); const struct pmbus_driver_info *pmbus_get_driver_info(struct i2c_client *client); - +int pmbus_get_fan_rate_device(struct i2c_client *client, int page, int id, + enum pmbus_fan_mode mode); +int pmbus_get_fan_rate_cached(struct i2c_client *client, int page, int id, + enum pmbus_fan_mode mode); +int pmbus_update_fan(struct i2c_client *client, int page, int id, + u8 config, u8 mask, u16 command); #endif /* PMBUS_H */ |