abx500-chargalg: Add abx500 charging algorithm
This is a charging algorithm driver for abx500 variants. It is the central entity for battery driver and is responsible for charging and monitoring the battery driver. It is a hardware independant driver and also monitors other abx500 power supply devices. Signed-off-by: Arun Murthy <arun.murthy@stericsson.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
This commit is contained in:
parent
ed1a230f96
commit
1668f81159
1921
drivers/power/abx500_chargalg.c
Normal file
1921
drivers/power/abx500_chargalg.c
Normal file
File diff suppressed because it is too large
Load diff
|
@ -152,6 +152,279 @@ struct abx500_init_settings {
|
|||
u8 setting;
|
||||
};
|
||||
|
||||
/* Battery driver related data */
|
||||
/*
|
||||
* ADC for the battery thermistor.
|
||||
* When using the ABx500_ADC_THERM_BATCTRL the battery ID resistor is combined
|
||||
* with a NTC resistor to both identify the battery and to measure its
|
||||
* temperature. Different phone manufactures uses different techniques to both
|
||||
* identify the battery and to read its temperature.
|
||||
*/
|
||||
enum abx500_adc_therm {
|
||||
ABx500_ADC_THERM_BATCTRL,
|
||||
ABx500_ADC_THERM_BATTEMP,
|
||||
};
|
||||
|
||||
/**
|
||||
* struct abx500_res_to_temp - defines one point in a temp to res curve. To
|
||||
* be used in battery packs that combines the identification resistor with a
|
||||
* NTC resistor.
|
||||
* @temp: battery pack temperature in Celcius
|
||||
* @resist: NTC resistor net total resistance
|
||||
*/
|
||||
struct abx500_res_to_temp {
|
||||
int temp;
|
||||
int resist;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct abx500_v_to_cap - Table for translating voltage to capacity
|
||||
* @voltage: Voltage in mV
|
||||
* @capacity: Capacity in percent
|
||||
*/
|
||||
struct abx500_v_to_cap {
|
||||
int voltage;
|
||||
int capacity;
|
||||
};
|
||||
|
||||
/* Forward declaration */
|
||||
struct abx500_fg;
|
||||
|
||||
/**
|
||||
* struct abx500_fg_parameters - Fuel gauge algorithm parameters, in seconds
|
||||
* if not specified
|
||||
* @recovery_sleep_timer: Time between measurements while recovering
|
||||
* @recovery_total_time: Total recovery time
|
||||
* @init_timer: Measurement interval during startup
|
||||
* @init_discard_time: Time we discard voltage measurement at startup
|
||||
* @init_total_time: Total init time during startup
|
||||
* @high_curr_time: Time current has to be high to go to recovery
|
||||
* @accu_charging: FG accumulation time while charging
|
||||
* @accu_high_curr: FG accumulation time in high current mode
|
||||
* @high_curr_threshold: High current threshold, in mA
|
||||
* @lowbat_threshold: Low battery threshold, in mV
|
||||
* @overbat_threshold: Over battery threshold, in mV
|
||||
* @battok_falling_th_sel0 Threshold in mV for battOk signal sel0
|
||||
* Resolution in 50 mV step.
|
||||
* @battok_raising_th_sel1 Threshold in mV for battOk signal sel1
|
||||
* Resolution in 50 mV step.
|
||||
* @user_cap_limit Capacity reported from user must be within this
|
||||
* limit to be considered as sane, in percentage
|
||||
* points.
|
||||
* @maint_thres This is the threshold where we stop reporting
|
||||
* battery full while in maintenance, in per cent
|
||||
*/
|
||||
struct abx500_fg_parameters {
|
||||
int recovery_sleep_timer;
|
||||
int recovery_total_time;
|
||||
int init_timer;
|
||||
int init_discard_time;
|
||||
int init_total_time;
|
||||
int high_curr_time;
|
||||
int accu_charging;
|
||||
int accu_high_curr;
|
||||
int high_curr_threshold;
|
||||
int lowbat_threshold;
|
||||
int overbat_threshold;
|
||||
int battok_falling_th_sel0;
|
||||
int battok_raising_th_sel1;
|
||||
int user_cap_limit;
|
||||
int maint_thres;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct abx500_charger_maximization - struct used by the board config.
|
||||
* @use_maxi: Enable maximization for this battery type
|
||||
* @maxi_chg_curr: Maximum charger current allowed
|
||||
* @maxi_wait_cycles: cycles to wait before setting charger current
|
||||
* @charger_curr_step delta between two charger current settings (mA)
|
||||
*/
|
||||
struct abx500_maxim_parameters {
|
||||
bool ena_maxi;
|
||||
int chg_curr;
|
||||
int wait_cycles;
|
||||
int charger_curr_step;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct abx500_battery_type - different batteries supported
|
||||
* @name: battery technology
|
||||
* @resis_high: battery upper resistance limit
|
||||
* @resis_low: battery lower resistance limit
|
||||
* @charge_full_design: Maximum battery capacity in mAh
|
||||
* @nominal_voltage: Nominal voltage of the battery in mV
|
||||
* @termination_vol: max voltage upto which battery can be charged
|
||||
* @termination_curr battery charging termination current in mA
|
||||
* @recharge_vol battery voltage limit that will trigger a new
|
||||
* full charging cycle in the case where maintenan-
|
||||
* -ce charging has been disabled
|
||||
* @normal_cur_lvl: charger current in normal state in mA
|
||||
* @normal_vol_lvl: charger voltage in normal state in mV
|
||||
* @maint_a_cur_lvl: charger current in maintenance A state in mA
|
||||
* @maint_a_vol_lvl: charger voltage in maintenance A state in mV
|
||||
* @maint_a_chg_timer_h: charge time in maintenance A state
|
||||
* @maint_b_cur_lvl: charger current in maintenance B state in mA
|
||||
* @maint_b_vol_lvl: charger voltage in maintenance B state in mV
|
||||
* @maint_b_chg_timer_h: charge time in maintenance B state
|
||||
* @low_high_cur_lvl: charger current in temp low/high state in mA
|
||||
* @low_high_vol_lvl: charger voltage in temp low/high state in mV'
|
||||
* @battery_resistance: battery inner resistance in mOhm.
|
||||
* @n_r_t_tbl_elements: number of elements in r_to_t_tbl
|
||||
* @r_to_t_tbl: table containing resistance to temp points
|
||||
* @n_v_cap_tbl_elements: number of elements in v_to_cap_tbl
|
||||
* @v_to_cap_tbl: Voltage to capacity (in %) table
|
||||
* @n_batres_tbl_elements number of elements in the batres_tbl
|
||||
* @batres_tbl battery internal resistance vs temperature table
|
||||
*/
|
||||
struct abx500_battery_type {
|
||||
int name;
|
||||
int resis_high;
|
||||
int resis_low;
|
||||
int charge_full_design;
|
||||
int nominal_voltage;
|
||||
int termination_vol;
|
||||
int termination_curr;
|
||||
int recharge_vol;
|
||||
int normal_cur_lvl;
|
||||
int normal_vol_lvl;
|
||||
int maint_a_cur_lvl;
|
||||
int maint_a_vol_lvl;
|
||||
int maint_a_chg_timer_h;
|
||||
int maint_b_cur_lvl;
|
||||
int maint_b_vol_lvl;
|
||||
int maint_b_chg_timer_h;
|
||||
int low_high_cur_lvl;
|
||||
int low_high_vol_lvl;
|
||||
int battery_resistance;
|
||||
int n_temp_tbl_elements;
|
||||
struct abx500_res_to_temp *r_to_t_tbl;
|
||||
int n_v_cap_tbl_elements;
|
||||
struct abx500_v_to_cap *v_to_cap_tbl;
|
||||
int n_batres_tbl_elements;
|
||||
struct batres_vs_temp *batres_tbl;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct abx500_bm_capacity_levels - abx500 capacity level data
|
||||
* @critical: critical capacity level in percent
|
||||
* @low: low capacity level in percent
|
||||
* @normal: normal capacity level in percent
|
||||
* @high: high capacity level in percent
|
||||
* @full: full capacity level in percent
|
||||
*/
|
||||
struct abx500_bm_capacity_levels {
|
||||
int critical;
|
||||
int low;
|
||||
int normal;
|
||||
int high;
|
||||
int full;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct abx500_bm_charger_parameters - Charger specific parameters
|
||||
* @usb_volt_max: maximum allowed USB charger voltage in mV
|
||||
* @usb_curr_max: maximum allowed USB charger current in mA
|
||||
* @ac_volt_max: maximum allowed AC charger voltage in mV
|
||||
* @ac_curr_max: maximum allowed AC charger current in mA
|
||||
*/
|
||||
struct abx500_bm_charger_parameters {
|
||||
int usb_volt_max;
|
||||
int usb_curr_max;
|
||||
int ac_volt_max;
|
||||
int ac_curr_max;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct abx500_bm_data - abx500 battery management data
|
||||
* @temp_under under this temp, charging is stopped
|
||||
* @temp_low between this temp and temp_under charging is reduced
|
||||
* @temp_high between this temp and temp_over charging is reduced
|
||||
* @temp_over over this temp, charging is stopped
|
||||
* @temp_now present battery temperature
|
||||
* @temp_interval_chg temperature measurement interval in s when charging
|
||||
* @temp_interval_nochg temperature measurement interval in s when not charging
|
||||
* @main_safety_tmr_h safety timer for main charger
|
||||
* @usb_safety_tmr_h safety timer for usb charger
|
||||
* @bkup_bat_v voltage which we charge the backup battery with
|
||||
* @bkup_bat_i current which we charge the backup battery with
|
||||
* @no_maintenance indicates that maintenance charging is disabled
|
||||
* @abx500_adc_therm placement of thermistor, batctrl or battemp adc
|
||||
* @chg_unknown_bat flag to enable charging of unknown batteries
|
||||
* @enable_overshoot flag to enable VBAT overshoot control
|
||||
* @auto_trig flag to enable auto adc trigger
|
||||
* @fg_res resistance of FG resistor in 0.1mOhm
|
||||
* @n_btypes number of elements in array bat_type
|
||||
* @batt_id index of the identified battery in array bat_type
|
||||
* @interval_charging charge alg cycle period time when charging (sec)
|
||||
* @interval_not_charging charge alg cycle period time when not charging (sec)
|
||||
* @temp_hysteresis temperature hysteresis
|
||||
* @gnd_lift_resistance Battery ground to phone ground resistance (mOhm)
|
||||
* @maxi: maximization parameters
|
||||
* @cap_levels capacity in percent for the different capacity levels
|
||||
* @bat_type table of supported battery types
|
||||
* @chg_params charger parameters
|
||||
* @fg_params fuel gauge parameters
|
||||
*/
|
||||
struct abx500_bm_data {
|
||||
int temp_under;
|
||||
int temp_low;
|
||||
int temp_high;
|
||||
int temp_over;
|
||||
int temp_now;
|
||||
int temp_interval_chg;
|
||||
int temp_interval_nochg;
|
||||
int main_safety_tmr_h;
|
||||
int usb_safety_tmr_h;
|
||||
int bkup_bat_v;
|
||||
int bkup_bat_i;
|
||||
bool no_maintenance;
|
||||
bool chg_unknown_bat;
|
||||
bool enable_overshoot;
|
||||
bool auto_trig;
|
||||
enum abx500_adc_therm adc_therm;
|
||||
int fg_res;
|
||||
int n_btypes;
|
||||
int batt_id;
|
||||
int interval_charging;
|
||||
int interval_not_charging;
|
||||
int temp_hysteresis;
|
||||
int gnd_lift_resistance;
|
||||
const struct abx500_maxim_parameters *maxi;
|
||||
const struct abx500_bm_capacity_levels *cap_levels;
|
||||
const struct abx500_battery_type *bat_type;
|
||||
const struct abx500_bm_charger_parameters *chg_params;
|
||||
const struct abx500_fg_parameters *fg_params;
|
||||
};
|
||||
|
||||
struct abx500_chargalg_platform_data {
|
||||
char **supplied_to;
|
||||
size_t num_supplicants;
|
||||
};
|
||||
|
||||
struct abx500_charger_platform_data {
|
||||
char **supplied_to;
|
||||
size_t num_supplicants;
|
||||
bool autopower_cfg;
|
||||
};
|
||||
|
||||
struct abx500_btemp_platform_data {
|
||||
char **supplied_to;
|
||||
size_t num_supplicants;
|
||||
};
|
||||
|
||||
struct abx500_fg_platform_data {
|
||||
char **supplied_to;
|
||||
size_t num_supplicants;
|
||||
};
|
||||
|
||||
struct abx500_bm_plat_data {
|
||||
struct abx500_bm_data *battery;
|
||||
struct abx500_charger_platform_data *charger;
|
||||
struct abx500_btemp_platform_data *btemp;
|
||||
struct abx500_fg_platform_data *fg;
|
||||
struct abx500_chargalg_platform_data *chargalg;
|
||||
};
|
||||
|
||||
int abx500_set_register_interruptible(struct device *dev, u8 bank, u8 reg,
|
||||
u8 value);
|
||||
int abx500_get_register_interruptible(struct device *dev, u8 bank, u8 reg,
|
||||
|
|
38
include/linux/mfd/abx500/ux500_chargalg.h
Normal file
38
include/linux/mfd/abx500/ux500_chargalg.h
Normal file
|
@ -0,0 +1,38 @@
|
|||
/*
|
||||
* Copyright (C) ST-Ericsson SA 2012
|
||||
* Author: Johan Gardsmark <johan.gardsmark@stericsson.com> for ST-Ericsson.
|
||||
* License terms: GNU General Public License (GPL), version 2
|
||||
*/
|
||||
|
||||
#ifndef _UX500_CHARGALG_H
|
||||
#define _UX500_CHARGALG_H
|
||||
|
||||
#include <linux/power_supply.h>
|
||||
|
||||
#define psy_to_ux500_charger(x) container_of((x), \
|
||||
struct ux500_charger, psy)
|
||||
|
||||
/* Forward declaration */
|
||||
struct ux500_charger;
|
||||
|
||||
struct ux500_charger_ops {
|
||||
int (*enable) (struct ux500_charger *, int, int, int);
|
||||
int (*kick_wd) (struct ux500_charger *);
|
||||
int (*update_curr) (struct ux500_charger *, int);
|
||||
};
|
||||
|
||||
/**
|
||||
* struct ux500_charger - power supply ux500 charger sub class
|
||||
* @psy power supply base class
|
||||
* @ops ux500 charger operations
|
||||
* @max_out_volt maximum output charger voltage in mV
|
||||
* @max_out_curr maximum output charger current in mA
|
||||
*/
|
||||
struct ux500_charger {
|
||||
struct power_supply psy;
|
||||
struct ux500_charger_ops ops;
|
||||
int max_out_volt;
|
||||
int max_out_curr;
|
||||
};
|
||||
|
||||
#endif
|
Loading…
Reference in a new issue