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347 lines
12 KiB
347 lines
12 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* Copyright (C) 2007-2009 ST-Ericsson AB |
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* |
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* ABX500 core access functions. |
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* The abx500 interface is used for the Analog Baseband chips. |
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* |
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* Author: Mattias Wallin <[email protected]> |
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* Author: Mattias Nilsson <[email protected]> |
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* Author: Bengt Jonsson <[email protected]> |
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* Author: Rickard Andersson <[email protected]> |
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*/ |
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#include <linux/regulator/machine.h> |
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struct device; |
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#ifndef MFD_ABX500_H |
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#define MFD_ABX500_H |
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/** |
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* struct abx500_init_setting |
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* Initial value of the registers for driver to use during setup. |
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*/ |
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struct abx500_init_settings { |
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u8 bank; |
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u8 reg; |
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u8 setting; |
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}; |
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/* Battery driver related data */ |
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/* |
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* ADC for the battery thermistor. |
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* When using the ABx500_ADC_THERM_BATCTRL the battery ID resistor is combined |
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* with a NTC resistor to both identify the battery and to measure its |
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* temperature. Different phone manufactures uses different techniques to both |
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* identify the battery and to read its temperature. |
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*/ |
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enum abx500_adc_therm { |
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ABx500_ADC_THERM_BATCTRL, |
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ABx500_ADC_THERM_BATTEMP, |
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}; |
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/** |
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* struct abx500_res_to_temp - defines one point in a temp to res curve. To |
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* be used in battery packs that combines the identification resistor with a |
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* NTC resistor. |
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* @temp: battery pack temperature in Celsius |
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* @resist: NTC resistor net total resistance |
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*/ |
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struct abx500_res_to_temp { |
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int temp; |
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int resist; |
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}; |
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/** |
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* struct abx500_v_to_cap - Table for translating voltage to capacity |
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* @voltage: Voltage in mV |
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* @capacity: Capacity in percent |
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*/ |
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struct abx500_v_to_cap { |
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int voltage; |
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int capacity; |
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}; |
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/* Forward declaration */ |
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struct abx500_fg; |
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/** |
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* struct abx500_fg_parameters - Fuel gauge algorithm parameters, in seconds |
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* if not specified |
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* @recovery_sleep_timer: Time between measurements while recovering |
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* @recovery_total_time: Total recovery time |
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* @init_timer: Measurement interval during startup |
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* @init_discard_time: Time we discard voltage measurement at startup |
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* @init_total_time: Total init time during startup |
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* @high_curr_time: Time current has to be high to go to recovery |
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* @accu_charging: FG accumulation time while charging |
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* @accu_high_curr: FG accumulation time in high current mode |
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* @high_curr_threshold: High current threshold, in mA |
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* @lowbat_threshold: Low battery threshold, in mV |
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* @overbat_threshold: Over battery threshold, in mV |
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* @battok_falling_th_sel0 Threshold in mV for battOk signal sel0 |
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* Resolution in 50 mV step. |
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* @battok_raising_th_sel1 Threshold in mV for battOk signal sel1 |
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* Resolution in 50 mV step. |
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* @user_cap_limit Capacity reported from user must be within this |
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* limit to be considered as sane, in percentage |
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* points. |
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* @maint_thres This is the threshold where we stop reporting |
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* battery full while in maintenance, in per cent |
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* @pcut_enable: Enable power cut feature in ab8505 |
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* @pcut_max_time: Max time threshold |
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* @pcut_flag_time: Flagtime threshold |
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* @pcut_max_restart: Max number of restarts |
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* @pcut_debounce_time: Sets battery debounce time |
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*/ |
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struct abx500_fg_parameters { |
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int recovery_sleep_timer; |
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int recovery_total_time; |
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int init_timer; |
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int init_discard_time; |
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int init_total_time; |
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int high_curr_time; |
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int accu_charging; |
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int accu_high_curr; |
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int high_curr_threshold; |
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int lowbat_threshold; |
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int overbat_threshold; |
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int battok_falling_th_sel0; |
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int battok_raising_th_sel1; |
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int user_cap_limit; |
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int maint_thres; |
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bool pcut_enable; |
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u8 pcut_max_time; |
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u8 pcut_flag_time; |
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u8 pcut_max_restart; |
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u8 pcut_debounce_time; |
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}; |
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/** |
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* struct abx500_charger_maximization - struct used by the board config. |
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* @use_maxi: Enable maximization for this battery type |
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* @maxi_chg_curr: Maximum charger current allowed |
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* @maxi_wait_cycles: cycles to wait before setting charger current |
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* @charger_curr_step delta between two charger current settings (mA) |
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*/ |
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struct abx500_maxim_parameters { |
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bool ena_maxi; |
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int chg_curr; |
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int wait_cycles; |
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int charger_curr_step; |
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}; |
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/** |
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* struct abx500_battery_type - different batteries supported |
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* @name: battery technology |
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* @resis_high: battery upper resistance limit |
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* @resis_low: battery lower resistance limit |
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* @charge_full_design: Maximum battery capacity in mAh |
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* @nominal_voltage: Nominal voltage of the battery in mV |
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* @termination_vol: max voltage upto which battery can be charged |
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* @termination_curr battery charging termination current in mA |
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* @recharge_cap battery capacity limit that will trigger a new |
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* full charging cycle in the case where maintenan- |
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* -ce charging has been disabled |
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* @normal_cur_lvl: charger current in normal state in mA |
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* @normal_vol_lvl: charger voltage in normal state in mV |
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* @maint_a_cur_lvl: charger current in maintenance A state in mA |
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* @maint_a_vol_lvl: charger voltage in maintenance A state in mV |
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* @maint_a_chg_timer_h: charge time in maintenance A state |
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* @maint_b_cur_lvl: charger current in maintenance B state in mA |
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* @maint_b_vol_lvl: charger voltage in maintenance B state in mV |
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* @maint_b_chg_timer_h: charge time in maintenance B state |
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* @low_high_cur_lvl: charger current in temp low/high state in mA |
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* @low_high_vol_lvl: charger voltage in temp low/high state in mV' |
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* @battery_resistance: battery inner resistance in mOhm. |
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* @n_r_t_tbl_elements: number of elements in r_to_t_tbl |
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* @r_to_t_tbl: table containing resistance to temp points |
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* @n_v_cap_tbl_elements: number of elements in v_to_cap_tbl |
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* @v_to_cap_tbl: Voltage to capacity (in %) table |
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* @n_batres_tbl_elements number of elements in the batres_tbl |
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* @batres_tbl battery internal resistance vs temperature table |
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*/ |
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struct abx500_battery_type { |
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int name; |
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int resis_high; |
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int resis_low; |
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int charge_full_design; |
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int nominal_voltage; |
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int termination_vol; |
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int termination_curr; |
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int recharge_cap; |
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int normal_cur_lvl; |
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int normal_vol_lvl; |
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int maint_a_cur_lvl; |
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int maint_a_vol_lvl; |
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int maint_a_chg_timer_h; |
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int maint_b_cur_lvl; |
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int maint_b_vol_lvl; |
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int maint_b_chg_timer_h; |
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int low_high_cur_lvl; |
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int low_high_vol_lvl; |
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int battery_resistance; |
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int n_temp_tbl_elements; |
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const struct abx500_res_to_temp *r_to_t_tbl; |
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int n_v_cap_tbl_elements; |
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const struct abx500_v_to_cap *v_to_cap_tbl; |
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int n_batres_tbl_elements; |
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const struct batres_vs_temp *batres_tbl; |
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}; |
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/** |
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* struct abx500_bm_capacity_levels - abx500 capacity level data |
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* @critical: critical capacity level in percent |
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* @low: low capacity level in percent |
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* @normal: normal capacity level in percent |
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* @high: high capacity level in percent |
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* @full: full capacity level in percent |
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*/ |
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struct abx500_bm_capacity_levels { |
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int critical; |
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int low; |
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int normal; |
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int high; |
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int full; |
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}; |
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/** |
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* struct abx500_bm_charger_parameters - Charger specific parameters |
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* @usb_volt_max: maximum allowed USB charger voltage in mV |
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* @usb_curr_max: maximum allowed USB charger current in mA |
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* @ac_volt_max: maximum allowed AC charger voltage in mV |
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* @ac_curr_max: maximum allowed AC charger current in mA |
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*/ |
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struct abx500_bm_charger_parameters { |
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int usb_volt_max; |
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int usb_curr_max; |
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int ac_volt_max; |
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int ac_curr_max; |
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}; |
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/** |
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* struct abx500_bm_data - abx500 battery management data |
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* @temp_under under this temp, charging is stopped |
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* @temp_low between this temp and temp_under charging is reduced |
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* @temp_high between this temp and temp_over charging is reduced |
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* @temp_over over this temp, charging is stopped |
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* @temp_now present battery temperature |
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* @temp_interval_chg temperature measurement interval in s when charging |
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* @temp_interval_nochg temperature measurement interval in s when not charging |
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* @main_safety_tmr_h safety timer for main charger |
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* @usb_safety_tmr_h safety timer for usb charger |
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* @bkup_bat_v voltage which we charge the backup battery with |
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* @bkup_bat_i current which we charge the backup battery with |
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* @no_maintenance indicates that maintenance charging is disabled |
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* @capacity_scaling indicates whether capacity scaling is to be used |
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* @abx500_adc_therm placement of thermistor, batctrl or battemp adc |
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* @chg_unknown_bat flag to enable charging of unknown batteries |
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* @enable_overshoot flag to enable VBAT overshoot control |
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* @auto_trig flag to enable auto adc trigger |
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* @fg_res resistance of FG resistor in 0.1mOhm |
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* @n_btypes number of elements in array bat_type |
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* @batt_id index of the identified battery in array bat_type |
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* @interval_charging charge alg cycle period time when charging (sec) |
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* @interval_not_charging charge alg cycle period time when not charging (sec) |
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* @temp_hysteresis temperature hysteresis |
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* @gnd_lift_resistance Battery ground to phone ground resistance (mOhm) |
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* @n_chg_out_curr number of elements in array chg_output_curr |
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* @n_chg_in_curr number of elements in array chg_input_curr |
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* @chg_output_curr charger output current level map |
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* @chg_input_curr charger input current level map |
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* @maxi maximization parameters |
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* @cap_levels capacity in percent for the different capacity levels |
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* @bat_type table of supported battery types |
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* @chg_params charger parameters |
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* @fg_params fuel gauge parameters |
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*/ |
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struct abx500_bm_data { |
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int temp_under; |
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int temp_low; |
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int temp_high; |
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int temp_over; |
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int temp_now; |
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int temp_interval_chg; |
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int temp_interval_nochg; |
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int main_safety_tmr_h; |
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int usb_safety_tmr_h; |
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int bkup_bat_v; |
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int bkup_bat_i; |
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bool autopower_cfg; |
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bool ac_enabled; |
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bool usb_enabled; |
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bool no_maintenance; |
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bool capacity_scaling; |
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bool chg_unknown_bat; |
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bool enable_overshoot; |
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bool auto_trig; |
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enum abx500_adc_therm adc_therm; |
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int fg_res; |
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int n_btypes; |
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int batt_id; |
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int interval_charging; |
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int interval_not_charging; |
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int temp_hysteresis; |
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int gnd_lift_resistance; |
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int n_chg_out_curr; |
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int n_chg_in_curr; |
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int *chg_output_curr; |
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int *chg_input_curr; |
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const struct abx500_maxim_parameters *maxi; |
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const struct abx500_bm_capacity_levels *cap_levels; |
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struct abx500_battery_type *bat_type; |
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const struct abx500_bm_charger_parameters *chg_params; |
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const struct abx500_fg_parameters *fg_params; |
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}; |
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enum { |
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NTC_EXTERNAL = 0, |
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NTC_INTERNAL, |
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}; |
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int ab8500_bm_of_probe(struct device *dev, |
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struct device_node *np, |
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struct abx500_bm_data *bm); |
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int abx500_set_register_interruptible(struct device *dev, u8 bank, u8 reg, |
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u8 value); |
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int abx500_get_register_interruptible(struct device *dev, u8 bank, u8 reg, |
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u8 *value); |
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int abx500_get_register_page_interruptible(struct device *dev, u8 bank, |
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u8 first_reg, u8 *regvals, u8 numregs); |
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int abx500_set_register_page_interruptible(struct device *dev, u8 bank, |
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u8 first_reg, u8 *regvals, u8 numregs); |
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/** |
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* abx500_mask_and_set_register_inerruptible() - Modifies selected bits of a |
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* target register |
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* |
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* @dev: The AB sub device. |
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* @bank: The i2c bank number. |
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* @bitmask: The bit mask to use. |
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* @bitvalues: The new bit values. |
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* |
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* Updates the value of an AB register: |
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* value -> ((value & ~bitmask) | (bitvalues & bitmask)) |
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*/ |
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int abx500_mask_and_set_register_interruptible(struct device *dev, u8 bank, |
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u8 reg, u8 bitmask, u8 bitvalues); |
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int abx500_get_chip_id(struct device *dev); |
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int abx500_event_registers_startup_state_get(struct device *dev, u8 *event); |
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int abx500_startup_irq_enabled(struct device *dev, unsigned int irq); |
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struct abx500_ops { |
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int (*get_chip_id) (struct device *); |
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int (*get_register) (struct device *, u8, u8, u8 *); |
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int (*set_register) (struct device *, u8, u8, u8); |
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int (*get_register_page) (struct device *, u8, u8, u8 *, u8); |
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int (*set_register_page) (struct device *, u8, u8, u8 *, u8); |
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int (*mask_and_set_register) (struct device *, u8, u8, u8, u8); |
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int (*event_registers_startup_state_get) (struct device *, u8 *); |
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int (*startup_irq_enabled) (struct device *, unsigned int); |
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void (*dump_all_banks) (struct device *); |
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}; |
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int abx500_register_ops(struct device *core_dev, struct abx500_ops *ops); |
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void abx500_remove_ops(struct device *dev); |
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#endif
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