power: pmic8058-charger: api to get fsm state
Implement an api to return the pmic internal charging state.
Now that we have a enum to define the states, replace the hard-coded
state numbers to enum values.
CRs-Fixed: 299629
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
diff --git a/include/linux/pmic8058-charger.h b/include/linux/pmic8058-charger.h
index f1fd25c..0fbc828 100644
--- a/include/linux/pmic8058-charger.h
+++ b/include/linux/pmic8058-charger.h
@@ -12,10 +12,61 @@
#ifndef __PMIC8058_CHARGER_H__
#define __PMIC8058_CHARGER_H__
+/**
+ * enum pmic8058_chg_state - pmic8058 charging states
+ * @PMIC8058_CHG_STATE_NONE: Initial off state
+ * @PMIC8058_CHG_STATE_PWR_CHG: Device powered from charger
+ * @PMIC8058_CHG_STATE_ATC: Device is Auto Tricke Charged (ATC)
+ * @PMIC8058_CHG_STATE_PWR_BAT: Device powered from Battery
+ * @PMIC8058_CHG_STATE_ATC_FAIL: ATC failed
+ * @PMIC8058_CHG_STATE_AUX_EN: Transient state
+ * @PMIC8058_CHG_STATE_PON_AFTER_ATC: Power on from battery and chg with limit
+ * of 90mA
+ * @PMIC8058_CHG_STATE_FAST_CHG: pmic is fast charging the battery
+ * @PMIC8058_CHG_STATE_TRKL_CHG: pmic is trck charging the battery
+ * @PMIC8058_CHG_STATE_CHG_FAIL: charging failed
+ * @PMIC8058_CHG_STATE_EOC: end of charging reached
+ * @PMIC8058_CHG_STATE_INRUSH_LIMIT: Brings up Vdd with 90mA max drawn from
+ * VBUS
+ * @PMIC8058_CHG_STATE_USB_SUSPENDED: USB supended, no current drawn from VBUS
+ * @PMIC8058_CHG_STATE_PAUSE_ATC: ATC paused
+ * @PMIC8058_CHG_STATE_PAUSE_FAST_CHG: FAST charging paused
+ * @PMIC8058_CHG_STATE_PAUSE_TRKL_CHG: TRLK charging paused
+ *
+ * The paused states happen when a unfavourable condition for charging is
+ * detected. The most common one being the battery gets too hot ot gets
+ * too cold for charging.
+ */
+enum pmic8058_chg_state {
+ PMIC8058_CHG_STATE_NONE,
+ PMIC8058_CHG_STATE_PWR_CHG,
+ PMIC8058_CHG_STATE_ATC,
+ PMIC8058_CHG_STATE_PWR_BAT,
+ PMIC8058_CHG_STATE_ATC_FAIL,
+ PMIC8058_CHG_STATE_AUX_EN,
+ PMIC8058_CHG_STATE_PON_AFTER_ATC,
+ PMIC8058_CHG_STATE_FAST_CHG,
+ PMIC8058_CHG_STATE_TRKL_CHG,
+ PMIC8058_CHG_STATE_CHG_FAIL,
+ PMIC8058_CHG_STATE_EOC,
+ PMIC8058_CHG_STATE_INRUSH_LIMIT,
+ PMIC8058_CHG_STATE_USB_SUSPENDED,
+ PMIC8058_CHG_STATE_PAUSE_ATC,
+ PMIC8058_CHG_STATE_PAUSE_FAST_CHG,
+ PMIC8058_CHG_STATE_PAUSE_TRKL_CHG
+};
#if defined(CONFIG_BATTERY_MSM8X60) || defined(CONFIG_BATTERY_MSM8X60_MODULE)
int pmic8058_get_charge_batt(void);
int pmic8058_set_charge_batt(int);
+/**
+ * pmic8058_get_fsm_state -
+ *
+ * CONTEXT: may sleep - should not be called from non-atomic context
+ *
+ * RETURNS: The pmic internal state, or error otherwise
+ */
+enum pmic8058_chg_state pmic8058_get_fsm_state(void);
#else
int pmic8058_get_charge_batt(void)
{
@@ -25,5 +76,9 @@
{
return -ENXIO;
}
+enum pmic8058_chg_state pmic8058_get_fsm_state(void)
+{
+ return -ENXIO;
+}
#endif
#endif /* __PMIC8058_CHARGER_H__ */