92264bdfee
Currently power supply name is passed to get the battery profile in of_batterydata_get_best_profile(). This creates a dependency of waiting for the driver that has the power supply class device. Improve this by passing the battery id directly to the API. This way, getting battery id will be the responsibility of caller. CRs-Fixed: 1043798 Change-Id: I7a8c2b2fcc9b43e2e858114f7312fccf96dc3f78 Signed-off-by: Subbaraman Narayanamurthy <subbaram@codeaurora.org>
219 lines
6.4 KiB
C
219 lines
6.4 KiB
C
/* Copyright (c) 2012-2015, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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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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#ifndef __BMS_BATTERYDATA_H
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#define __BMS_BATTERYDATA_H
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#include <linux/errno.h>
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#define FCC_CC_COLS 5
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#define FCC_TEMP_COLS 8
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#define PC_CC_ROWS 31
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#define PC_CC_COLS 13
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#define PC_TEMP_ROWS 31
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#define PC_TEMP_COLS 8
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#define ACC_IBAT_ROWS 4
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#define ACC_TEMP_COLS 3
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#define MAX_SINGLE_LUT_COLS 20
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#define MAX_BATT_ID_NUM 4
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#define DEGC_SCALE 10
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struct single_row_lut {
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int x[MAX_SINGLE_LUT_COLS];
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int y[MAX_SINGLE_LUT_COLS];
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int cols;
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};
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/**
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* struct sf_lut -
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* @rows: number of percent charge entries should be <= PC_CC_ROWS
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* @cols: number of charge cycle entries should be <= PC_CC_COLS
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* @row_entries: the charge cycles/temperature at which sf data
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* is available in the table.
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* The charge cycles must be in increasing order from 0 to rows.
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* @percent: the percent charge at which sf data is available in the table
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* The percentcharge must be in decreasing order from 0 to cols.
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* @sf: the scaling factor data
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*/
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struct sf_lut {
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int rows;
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int cols;
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int row_entries[PC_CC_COLS];
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int percent[PC_CC_ROWS];
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int sf[PC_CC_ROWS][PC_CC_COLS];
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};
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/**
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* struct pc_temp_ocv_lut -
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* @rows: number of percent charge entries should be <= PC_TEMP_ROWS
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* @cols: number of temperature entries should be <= PC_TEMP_COLS
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* @temp: the temperatures at which ocv data is available in the table
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* The temperatures must be in increasing order from 0 to rows.
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* @percent: the percent charge at which ocv data is available in the table
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* The percentcharge must be in decreasing order from 0 to cols.
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* @ocv: the open circuit voltage
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*/
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struct pc_temp_ocv_lut {
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int rows;
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int cols;
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int temp[PC_TEMP_COLS];
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int percent[PC_TEMP_ROWS];
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int ocv[PC_TEMP_ROWS][PC_TEMP_COLS];
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};
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struct ibat_temp_acc_lut {
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int rows;
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int cols;
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int temp[ACC_TEMP_COLS];
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int ibat[ACC_IBAT_ROWS];
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int acc[ACC_IBAT_ROWS][ACC_TEMP_COLS];
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};
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struct batt_ids {
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int kohm[MAX_BATT_ID_NUM];
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int num;
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};
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enum battery_type {
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BATT_UNKNOWN = 0,
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BATT_PALLADIUM,
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BATT_DESAY,
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BATT_OEM,
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BATT_QRD_4V35_2000MAH,
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BATT_QRD_4V2_1300MAH,
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};
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/**
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* struct bms_battery_data -
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* @fcc: full charge capacity (mAmpHour)
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* @fcc_temp_lut: table to get fcc at a given temp
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* @pc_temp_ocv_lut: table to get percent charge given batt temp and cycles
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* @pc_sf_lut: table to get percent charge scaling factor given cycles
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* and percent charge
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* @rbatt_sf_lut: table to get battery resistance scaling factor given
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* temperature and percent charge
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* @default_rbatt_mohm: the default value of battery resistance to use when
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* readings from bms are not available.
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* @delta_rbatt_mohm: the resistance to be added towards lower soc to
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* compensate for battery capacitance.
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* @rbatt_capacitve_mohm: the resistance to be added to compensate for
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* battery capacitance
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* @flat_ocv_threshold_uv: the voltage where the battery's discharge curve
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* starts flattening out.
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* @max_voltage_uv: max voltage of the battery
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* @cutoff_uv: cutoff voltage of the battery
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* @iterm_ua: termination current of the battery when charging
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* to 100%
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* @batt_id_kohm: the best matched battery id resistor value
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* @fastchg_current_ma: maximum fast charge current
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* @fg_cc_cv_threshold_mv: CC to CV threashold voltage
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*/
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struct bms_battery_data {
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unsigned int fcc;
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struct single_row_lut *fcc_temp_lut;
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struct single_row_lut *fcc_sf_lut;
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struct pc_temp_ocv_lut *pc_temp_ocv_lut;
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struct ibat_temp_acc_lut *ibat_acc_lut;
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struct sf_lut *pc_sf_lut;
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struct sf_lut *rbatt_sf_lut;
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int default_rbatt_mohm;
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int delta_rbatt_mohm;
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int rbatt_capacitive_mohm;
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int flat_ocv_threshold_uv;
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int max_voltage_uv;
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int cutoff_uv;
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int iterm_ua;
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int batt_id_kohm;
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int fastchg_current_ma;
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int fg_cc_cv_threshold_mv;
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const char *battery_type;
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};
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#define is_between(left, right, value) \
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(((left) >= (right) && (left) >= (value) \
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&& (value) >= (right)) \
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|| ((left) <= (right) && (left) <= (value) \
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&& (value) <= (right)))
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#if defined(CONFIG_PM8921_BMS) || \
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defined(CONFIG_PM8921_BMS_MODULE) || \
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defined(CONFIG_QPNP_BMS) || \
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defined(CONFIG_QPNP_VM_BMS)
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extern struct bms_battery_data palladium_1500_data;
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extern struct bms_battery_data desay_5200_data;
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extern struct bms_battery_data oem_batt_data;
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extern struct bms_battery_data QRD_4v35_2000mAh_data;
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extern struct bms_battery_data qrd_4v2_1300mah_data;
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int interpolate_fcc(struct single_row_lut *fcc_temp_lut, int batt_temp);
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int interpolate_scalingfactor(struct sf_lut *sf_lut, int row_entry, int pc);
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int interpolate_scalingfactor_fcc(struct single_row_lut *fcc_sf_lut,
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int cycles);
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int interpolate_pc(struct pc_temp_ocv_lut *pc_temp_ocv,
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int batt_temp_degc, int ocv);
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int interpolate_ocv(struct pc_temp_ocv_lut *pc_temp_ocv,
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int batt_temp_degc, int pc);
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int interpolate_slope(struct pc_temp_ocv_lut *pc_temp_ocv,
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int batt_temp, int pc);
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int interpolate_acc(struct ibat_temp_acc_lut *ibat_acc_lut,
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int batt_temp, int ibat);
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int linear_interpolate(int y0, int x0, int y1, int x1, int x);
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#else
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static inline int interpolate_fcc(struct single_row_lut *fcc_temp_lut,
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int batt_temp)
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{
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return -EINVAL;
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}
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static inline int interpolate_scalingfactor(struct sf_lut *sf_lut,
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int row_entry, int pc)
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{
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return -EINVAL;
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}
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static inline int interpolate_scalingfactor_fcc(
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struct single_row_lut *fcc_sf_lut, int cycles)
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{
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return -EINVAL;
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}
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static inline int interpolate_pc(struct pc_temp_ocv_lut *pc_temp_ocv,
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int batt_temp_degc, int ocv)
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{
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return -EINVAL;
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}
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static inline int interpolate_ocv(struct pc_temp_ocv_lut *pc_temp_ocv,
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int batt_temp_degc, int pc)
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{
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return -EINVAL;
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}
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static inline int interpolate_slope(struct pc_temp_ocv_lut *pc_temp_ocv,
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int batt_temp, int pc)
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{
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return -EINVAL;
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}
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static inline int linear_interpolate(int y0, int x0, int y1, int x1, int x)
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{
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return -EINVAL;
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}
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static inline int interpolate_acc(struct ibat_temp_acc_lut *ibat_acc_lut,
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int batt_temp, int ibat)
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{
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return -EINVAL;
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}
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#endif
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#endif
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