4c4268dc97
The AB8540 was an evolved version of the AB8500, but it was never mass produced or put into products, only reference designs exist. The upstream support was never completed and it is unlikely that this will happen so drop the support for now to simplify maintenance of the AB8500. Cc: Loic Pallardy <loic.pallardy@st.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
348 lines
12 KiB
C
348 lines
12 KiB
C
/*
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* Copyright (C) 2007-2009 ST-Ericsson AB
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* License terms: GNU General Public License (GPL) version 2
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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 <mattias.wallin@stericsson.com>
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* Author: Mattias Nilsson <mattias.i.nilsson@stericsson.com>
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* Author: Bengt Jonsson <bengt.g.jonsson@stericsson.com>
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* Author: Rickard Andersson <rickard.andersson@stericsson.com>
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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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