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135 lines
3.5 KiB
C
135 lines
3.5 KiB
C
/*
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* Fuel gauge driver for Nintendo Switch's Maxim 17050
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* Note that Maxim 8966 and 8997 are mfd and this is its subdevice.
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*
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* Copyright (c) 2011 Samsung Electronics
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* MyungJoo Ham <myungjoo.ham@samsung.com>
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* Copyright (c) 2018-2020 CTCaer
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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 as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __MAX17050_H_
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#define __MAX17050_H_
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#include "../utils/types.h"
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#define MAX17050_STATUS_BattAbsent (1 << 3)
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#define MAX17050_DEFAULT_SNS_RESISTOR 10000
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/* Consider RepCap which is less then 10 units below FullCAP full */
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#define MAX17050_FULL_THRESHOLD 10
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#define MAX17050_CHARACTERIZATION_DATA_SIZE 48
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#define MAXIM17050_I2C_ADDR 0x36
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enum MAX17050_reg {
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MAX17050_STATUS = 0x00,
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MAX17050_VALRT_Th = 0x01,
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MAX17050_TALRT_Th = 0x02,
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MAX17050_SALRT_Th = 0x03,
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MAX17050_AtRate = 0x04,
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MAX17050_RepCap = 0x05,
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MAX17050_RepSOC = 0x06,
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MAX17050_Age = 0x07,
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MAX17050_TEMP = 0x08,
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MAX17050_VCELL = 0x09,
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MAX17050_Current = 0x0A,
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MAX17050_AvgCurrent = 0x0B,
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MAX17050_SOC = 0x0D,
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MAX17050_AvSOC = 0x0E,
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MAX17050_RemCap = 0x0F,
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MAX17050_FullCAP = 0x10,
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MAX17050_TTE = 0x11,
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MAX17050_QRTbl00 = 0x12,
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MAX17050_FullSOCThr = 0x13,
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MAX17050_RSLOW = 0x14,
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MAX17050_AvgTA = 0x16,
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MAX17050_Cycles = 0x17,
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MAX17050_DesignCap = 0x18,
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MAX17050_AvgVCELL = 0x19,
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MAX17050_MinMaxTemp = 0x1A,
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MAX17050_MinMaxVolt = 0x1B,
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MAX17050_MinMaxCurr = 0x1C,
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MAX17050_CONFIG = 0x1D,
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MAX17050_ICHGTerm = 0x1E,
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MAX17050_AvCap = 0x1F,
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MAX17050_ManName = 0x20,
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MAX17050_DevName = 0x21,
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MAX17050_QRTbl10 = 0x22,
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MAX17050_FullCAPNom = 0x23,
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MAX17050_TempNom = 0x24,
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MAX17050_TempLim = 0x25,
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MAX17050_TempHot = 0x26,
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MAX17050_AIN = 0x27,
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MAX17050_LearnCFG = 0x28,
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MAX17050_FilterCFG = 0x29,
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MAX17050_RelaxCFG = 0x2A,
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MAX17050_MiscCFG = 0x2B,
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MAX17050_TGAIN = 0x2C,
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MAX17050_TOFF = 0x2D,
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MAX17050_CGAIN = 0x2E,
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MAX17050_COFF = 0x2F,
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MAX17050_QRTbl20 = 0x32,
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MAX17050_SOC_empty = 0x33,
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MAX17050_T_empty = 0x34,
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MAX17050_FullCAP0 = 0x35,
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MAX17050_LAvg_empty = 0x36,
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MAX17050_FCTC = 0x37,
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MAX17050_RCOMP0 = 0x38,
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MAX17050_TempCo = 0x39,
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MAX17050_V_empty = 0x3A,
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MAX17050_K_empty0 = 0x3B,
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MAX17050_TaskPeriod = 0x3C,
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MAX17050_FSTAT = 0x3D,
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MAX17050_TIMER = 0x3E,
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MAX17050_SHDNTIMER = 0x3F,
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MAX17050_QRTbl30 = 0x42,
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MAX17050_dQacc = 0x45,
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MAX17050_dPacc = 0x46,
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MAX17050_VFSOC0 = 0x48,
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Max17050_QH0 = 0x4C,
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MAX17050_QH = 0x4D,
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MAX17050_QL = 0x4E,
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MAX17050_MinVolt = 0x50, // Custom ID. Not to be sent to i2c.
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MAX17050_MaxVolt = 0x51, // Custom ID. Not to be sent to i2c.
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MAX17050_VFSOC0Enable = 0x60,
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MAX17050_MODELEnable1 = 0x62,
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MAX17050_MODELEnable2 = 0x63,
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MAX17050_MODELChrTbl = 0x80,
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MAX17050_OCV = 0xEE,
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MAX17050_OCVInternal = 0xFB,
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MAX17050_VFSOC = 0xFF,
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};
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int max17050_get_property(enum MAX17050_reg reg, int *value);
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int max17050_fix_configuration();
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u32 max17050_get_cached_batt_volt();
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#endif /* __MAX17050_H_ */
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