140 lines
4.3 KiB
C
140 lines
4.3 KiB
C
/* Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef __MSM_CHARGER_H__
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#define __MSM_CHARGER_H__
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#include <linux/power_supply.h>
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enum {
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CHG_TYPE_USB,
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CHG_TYPE_AC
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};
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enum msm_hardware_charger_event {
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CHG_INSERTED_EVENT,
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CHG_ENUMERATED_EVENT,
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CHG_REMOVED_EVENT,
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CHG_DONE_EVENT,
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CHG_BATT_BEGIN_FAST_CHARGING,
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CHG_BATT_CHG_RESUME,
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CHG_BATT_TEMP_OUTOFRANGE,
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CHG_BATT_TEMP_INRANGE,
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CHG_BATT_INSERTED,
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CHG_BATT_REMOVED,
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CHG_BATT_STATUS_CHANGE,
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CHG_BATT_NEEDS_RECHARGING,
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};
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/**
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* enum hardware_charger_state
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* @CHG_ABSENT_STATE: charger cable is unplugged
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* @CHG_PRESENT_STATE: charger cable is plugged but charge current isnt drawn
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* @CHG_READY_STATE: charger cable is plugged and kernel knows how much current
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* it can draw
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* @CHG_CHARGING_STATE: charger cable is plugged and current is drawn for
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* charging
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*/
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enum msm_hardware_charger_state {
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CHG_ABSENT_STATE,
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CHG_PRESENT_STATE,
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CHG_READY_STATE,
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CHG_CHARGING_STATE,
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};
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struct msm_hardware_charger {
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int type;
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int rating;
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const char *name;
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int (*start_charging) (struct msm_hardware_charger *hw_chg,
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int chg_voltage, int chg_current);
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int (*stop_charging) (struct msm_hardware_charger *hw_chg);
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int (*charging_switched) (struct msm_hardware_charger *hw_chg);
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void (*start_system_current) (struct msm_hardware_charger *hw_chg,
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int chg_current);
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void (*stop_system_current) (struct msm_hardware_charger *hw_chg);
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void *charger_private; /* used by the msm_charger.c */
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};
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struct msm_battery_gauge {
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int (*get_battery_mvolts) (void);
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int (*get_battery_temperature) (void);
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int (*is_battery_present) (void);
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int (*is_battery_temp_within_range) (void);
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int (*is_battery_id_valid) (void);
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int (*get_battery_status)(void);
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int (*get_batt_remaining_capacity) (void);
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int (*monitor_for_recharging) (void);
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};
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/**
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* struct msm_charger_platform_data
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* @safety_time: max charging time in minutes
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* @update_time: how often the userland be updated of the charging progress
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* @max_voltage: the max voltage the battery should be charged upto
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* @min_voltage: the voltage where charging method switches from trickle to fast
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* @get_batt_capacity_percent: a board specific function to return battery
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* capacity. Can be null - a default one will be used
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*/
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struct msm_charger_platform_data {
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unsigned int safety_time;
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unsigned int update_time;
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unsigned int max_voltage;
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unsigned int min_voltage;
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unsigned int (*get_batt_capacity_percent) (void);
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};
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typedef void (*notify_vbus_state) (int);
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#if defined(CONFIG_BATTERY_MSM8X60) || defined(CONFIG_BATTERY_MSM8X60_MODULE)
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void msm_battery_gauge_register(struct msm_battery_gauge *batt_gauge);
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void msm_battery_gauge_unregister(struct msm_battery_gauge *batt_gauge);
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int msm_charger_register(struct msm_hardware_charger *hw_chg);
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int msm_charger_unregister(struct msm_hardware_charger *hw_chg);
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int msm_charger_notify_event(struct msm_hardware_charger *hw_chg,
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enum msm_hardware_charger_event event);
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void msm_charger_vbus_draw(unsigned int mA);
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int msm_charger_register_vbus_sn(void (*callback)(int));
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void msm_charger_unregister_vbus_sn(void (*callback)(int));
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#else
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static inline void msm_battery_gauge_register(struct msm_battery_gauge *gauge)
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{
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}
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static inline void msm_battery_gauge_unregister(struct msm_battery_gauge *gauge)
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{
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}
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static inline int msm_charger_register(struct msm_hardware_charger *hw_chg)
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{
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return -ENXIO;
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}
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static inline int msm_charger_unregister(struct msm_hardware_charger *hw_chg)
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{
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return -ENXIO;
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}
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static inline int msm_charger_notify_event(struct msm_hardware_charger *hw_chg,
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enum msm_hardware_charger_event event)
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{
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return -ENXIO;
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}
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static inline void msm_charger_vbus_draw(unsigned int mA)
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{
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}
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static inline int msm_charger_register_vbus_sn(void (*callback)(int))
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{
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return -ENXIO;
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}
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static inline void msm_charger_unregister_vbus_sn(void (*callback)(int))
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{
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}
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#endif
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#endif /* __MSM_CHARGER_H__ */
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