212 lines
4.6 KiB
C
212 lines
4.6 KiB
C
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/*
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* max77833_fuelgauge.h
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* Samsung MAX77833 Fuel Gauge Header
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*
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* Copyright (C) 2012 Samsung Electronics, Inc.
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*
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* This software is 77833 under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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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 __MAX77833_FUELGAUGE_H
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#define __MAX77833_FUELGAUGE_H __FILE__
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#include <linux/battery/sec_charging_common.h>
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#include <linux/mfd/core.h>
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#include <linux/mfd/max77833.h>
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#include <linux/mfd/max77833-private.h>
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#include <linux/regulator/machine.h>
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/* Slave address should be shifted to the right 1bit.
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* R/W bit should NOT be included.
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*/
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#define PRINT_COUNT 10
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#define LOW_BATT_COMP_RANGE_NUM 5
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#define LOW_BATT_COMP_LEVEL_NUM 2
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#define MAX_LOW_BATT_CHECK_CNT 10
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#define ALERT_EN 0x04
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struct sec_fuelgauge_reg_data {
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u8 reg_addr;
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u8 reg_data1;
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u8 reg_data2;
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};
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enum max77833_valrt_mode {
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MAX77833_NORMAL_MODE = 0,
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MAX77833_VEMPTY_MODE,
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MAX77833_VEMPTY_RECOVERY_MODE,
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};
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struct max77833_fg_info {
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/* test print count */
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int pr_cnt;
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/* full charge comp */
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struct delayed_work full_comp_work;
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u32 previous_fullcap;
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u32 previous_vffullcap;
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/* low battery comp */
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int low_batt_comp_cnt[LOW_BATT_COMP_RANGE_NUM][LOW_BATT_COMP_LEVEL_NUM];
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int low_batt_comp_flag;
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/* low battery boot */
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int low_batt_boot_flag;
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bool is_low_batt_alarm;
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/* battery info */
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u32 soc;
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/* miscellaneous */
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unsigned long fullcap_check_interval;
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int full_check_flag;
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bool is_first_check;
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};
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enum {
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MAX77833_FG_LEVEL = 0,
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MAX77833_FG_TEMPERATURE,
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MAX77833_FG_VOLTAGE,
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MAX77833_FG_CURRENT,
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MAX77833_FG_CURRENT_AVG,
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MAX77833_FG_CHECK_STATUS,
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MAX77833_FG_RAW_SOC,
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MAX77833_FG_VF_SOC,
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MAX77833_FG_AV_SOC,
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MAX77833_FG_FULLCAP,
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MAX77833_FG_FULLCAPNOM,
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MAX77833_FG_FULLCAPREP,
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MAX77833_FG_MIXCAP,
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MAX77833_FG_AVCAP,
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MAX77833_FG_REPCAP,
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MAX77833_FG_CYCLE,
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MAX77833_FG_ISYS,
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MAX77833_FG_AVGISYS,
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};
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enum {
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MAX77833_POSITIVE = 0,
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MAX77833_NEGATIVE,
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};
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enum {
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MAX77833_RANGE = 0,
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MAX77833_SLOPE,
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MAX77833_OFFSET,
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MAX77833_TABLE_MAX
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};
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#define CURRENT_RANGE_MAX_NUM 5
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struct battery_data_t {
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u32 V_empty;
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u32 V_empty_origin;
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u32 QResidual20;
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u32 QResidual30;
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u32 Capacity;
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u32 low_battery_comp_voltage;
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s32 low_battery_table[CURRENT_RANGE_MAX_NUM][MAX77833_TABLE_MAX];
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u8 *type_str;
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u32 ichgterm;
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u32 misccfg;
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u32 fullsocthr;
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u32 ichgterm_2nd;
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u32 misccfg_2nd;
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u32 fullsocthr_2nd;
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};
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/* FullCap learning setting */
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#define VFFULLCAP_CHECK_INTERVAL 300 /* sec */
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/* soc should be 0.1% unit */
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#define VFSOC_FOR_FULLCAP_LEARNING 950
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#define LOW_CURRENT_FOR_FULLCAP_LEARNING 20
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#define HIGH_CURRENT_FOR_FULLCAP_LEARNING 120
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#define LOW_AVGCURRENT_FOR_FULLCAP_LEARNING 20
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#define HIGH_AVGCURRENT_FOR_FULLCAP_LEARNING 100
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/* power off margin */
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/* soc should be 0.1% unit */
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#define POWER_OFF_SOC_HIGH_MARGIN 20
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#define POWER_OFF_VOLTAGE_HIGH_MARGIN 3500
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#define POWER_OFF_VOLTAGE_LOW_MARGIN 3400
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/* FG recovery handler */
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/* soc should be 0.1% unit */
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#define STABLE_LOW_BATTERY_DIFF 30
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#define STABLE_LOW_BATTERY_DIFF_LOWBATT 10
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#define LOW_BATTERY_SOC_REDUCE_UNIT 10
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struct cv_slope{
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int fg_current;
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int soc;
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int time;
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};
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struct max77833_fuelgauge_data {
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struct device *dev;
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struct i2c_client *i2c;
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struct i2c_client *pmic;
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struct mutex fuelgauge_mutex;
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struct max77833_platform_data *max77833_pdata;
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sec_fuelgauge_platform_data_t *pdata;
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struct power_supply psy_fg;
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struct delayed_work isr_work;
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int cable_type;
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bool is_charging;
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/* HW-dedicated fuel guage info structure
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* used in individual fuel gauge file only
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* (ex. dummy_fuelgauge.c)
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*/
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struct max77833_fg_info info;
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struct battery_data_t *battery_data;
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bool is_fuel_alerted;
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struct wake_lock fuel_alert_wake_lock;
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unsigned int capacity_old; /* only for atomic calculation */
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unsigned int capacity_max; /* only for dynamic calculation */
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unsigned int standard_capacity;
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bool initial_update_of_soc;
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struct mutex fg_lock;
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/* register programming */
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int reg_addr;
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u8 reg_data[2];
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unsigned int pre_soc;
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int fg_irq;
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int raw_capacity;
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int current_now;
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int current_avg;
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int isys_current_now;
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int isys_current_avg;
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struct cv_slope *cv_data;
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int cv_data_lenth;
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bool using_temp_compensation;
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bool low_temp_compensation_en;
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bool using_hw_vempty;
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bool hw_v_empty;
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int sw_v_empty;
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unsigned int low_temp_limit;
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unsigned int low_temp_recovery;
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};
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#endif /* __MAX77833_FUELGAUGE_H */
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