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Diffstat (limited to 'drivers/hwmon/pmbus/pmbus.h')
-rw-r--r--drivers/hwmon/pmbus/pmbus.h41
1 files changed, 41 insertions, 0 deletions
diff --git a/drivers/hwmon/pmbus/pmbus.h b/drivers/hwmon/pmbus/pmbus.h
index fa613bd209e3..1d24397d36ec 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 +369,10 @@ 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)
+
+#define PMBUS_PAGE_VIRTUAL BIT(31)
enum pmbus_data_format { linear = 0, direct, vid };
enum vrm_version { vr11 = 0, vr12, vr13 };
@@ -421,5 +455,12 @@ 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);
+struct dentry *pmbus_get_debugfs_dir(struct i2c_client *client);
#endif /* PMBUS_H */