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/*
* max77854_fuelgauge.h
* Samsung MAX77854 Fuel Gauge Header
*
* Copyright (C) 2015 Samsung Electronics, Inc.
*
* This software is 77854 under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#ifndef __MAX77854_FUELGAUGE_H
#define __MAX77854_FUELGAUGE_H __FILE__
#include <linux/mfd/core.h>
#include <linux/mfd/max77854.h>
#include <linux/mfd/max77854-private.h>
#include <linux/regulator/machine.h>
/* Slave address should be shifted to the right 1bit.
* R/W bit should NOT be included.
*/
#define PRINT_COUNT 10
#define ALERT_EN 0x04
#define CAPACITY_SCALE_DEFAULT_CURRENT 1000
#define CAPACITY_SCALE_HV_CURRENT 600
enum max77854_valrt_mode {
NORMAL_MODE = 0,
VEMPTY_MODE,
VEMPTY_RECOVERY_MODE,
};
struct sec_fg_info {
/* test print count */
int pr_cnt;
/* full charge comp */
struct delayed_work full_comp_work;
u32 previous_fullcap;
u32 previous_vffullcap;
/* battery info */
u32 soc;
/* miscellaneous */
unsigned long fullcap_check_interval;
int full_check_flag;
bool is_first_check;
};
enum {
FG_LEVEL = 0,
FG_TEMPERATURE,
FG_VOLTAGE,
FG_CURRENT,
FG_CURRENT_AVG,
FG_CHECK_STATUS,
FG_RAW_SOC,
FG_VF_SOC,
FG_AV_SOC,
FG_FULLCAP,
FG_FULLCAPNOM,
FG_FULLCAPREP,
FG_MIXCAP,
FG_AVCAP,
FG_REPCAP,
FG_CYCLE,
};
enum {
POSITIVE = 0,
NEGATIVE,
};
enum {
RANGE = 0,
SLOPE,
OFFSET,
TABLE_MAX
};
#define CURRENT_RANGE_MAX_NUM 5
struct battery_data_t {
u32 V_empty;
u32 V_empty_origin;
u32 QResidual20;
u32 QResidual30;
u32 TempCo;
u32 Capacity;
u8 *type_str;
u32 ichgterm;
u32 misccfg;
u32 fullsocthr;
u32 ichgterm_2nd;
u32 misccfg_2nd;
u32 fullsocthr_2nd;
};
/* FullCap learning setting */
#define VFFULLCAP_CHECK_INTERVAL 300 /* sec */
/* soc should be 0.1% unit */
#define VFSOC_FOR_FULLCAP_LEARNING 950
#define LOW_CURRENT_FOR_FULLCAP_LEARNING 20
#define HIGH_CURRENT_FOR_FULLCAP_LEARNING 120
#define LOW_AVGCURRENT_FOR_FULLCAP_LEARNING 20
#define HIGH_AVGCURRENT_FOR_FULLCAP_LEARNING 100
/* power off margin */
/* soc should be 0.1% unit */
#define POWER_OFF_SOC_HIGH_MARGIN 20
#define POWER_OFF_VOLTAGE_HIGH_MARGIN 3500
#define POWER_OFF_VOLTAGE_LOW_MARGIN 3400
struct cv_slope{
int fg_current;
int soc;
int time;
};
struct max77854_fuelgauge_data {
struct device *dev;
struct i2c_client *i2c;
struct i2c_client *pmic;
struct mutex fuelgauge_mutex;
struct max77854_platform_data *max77854_pdata;
sec_fuelgauge_platform_data_t *pdata;
struct power_supply psy_fg;
struct delayed_work isr_work;
int cable_type;
bool is_charging;
/* HW-dedicated fuel guage info structure
* used in individual fuel gauge file only
* (ex. dummy_fuelgauge.c)
*/
struct sec_fg_info info;
struct battery_data_t *battery_data;
bool is_fuel_alerted;
struct wake_lock fuel_alert_wake_lock;
unsigned int capacity_old; /* only for atomic calculation */
unsigned int capacity_max; /* only for dynamic calculation */
unsigned int standard_capacity;
bool initial_update_of_soc;
struct mutex fg_lock;
/* register programming */
int reg_addr;
u8 reg_data[2];
unsigned int pre_soc;
int fg_irq;
int raw_capacity;
int current_now;
int current_avg;
struct cv_slope *cv_data;
int cv_data_lenth;
bool using_temp_compensation;
bool low_temp_compensation_en;
bool using_hw_vempty;
bool hw_v_empty;
int sw_v_empty;
unsigned int low_temp_limit;
unsigned int low_temp_recovery;
bool auto_discharge_en;
u32 discharge_temp_threshold;
u32 discharge_volt_threshold;
u32 fg_resistor;
};
#endif /* __MAX77854_FUELGAUGE_H */