1 /* 2 * Fuel gauge driver for Maxim 17042 / 8966 / 8997 3 * Note that Maxim 8966 and 8997 are mfd and this is its subdevice. 4 * 5 * Copyright (C) 2011 Samsung Electronics 6 * MyungJoo Ham <myungjoo.ham@samsung.com> 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 */ 22 23 #ifndef __MAX17042_BATTERY_H_ 24 #define __MAX17042_BATTERY_H_ 25 26 #define MAX17042_STATUS_BattAbsent (1 << 3) 27 #define MAX17042_BATTERY_FULL (100) 28 #define MAX17042_DEFAULT_SNS_RESISTOR (10000) 29 30 enum max17042_register { 31 MAX17042_STATUS = 0x00, 32 MAX17042_VALRT_Th = 0x01, 33 MAX17042_TALRT_Th = 0x02, 34 MAX17042_SALRT_Th = 0x03, 35 MAX17042_AtRate = 0x04, 36 MAX17042_RepCap = 0x05, 37 MAX17042_RepSOC = 0x06, 38 MAX17042_Age = 0x07, 39 MAX17042_TEMP = 0x08, 40 MAX17042_VCELL = 0x09, 41 MAX17042_Current = 0x0A, 42 MAX17042_AvgCurrent = 0x0B, 43 MAX17042_Qresidual = 0x0C, 44 MAX17042_SOC = 0x0D, 45 MAX17042_AvSOC = 0x0E, 46 MAX17042_RemCap = 0x0F, 47 MAX17402_FullCAP = 0x10, 48 MAX17042_TTE = 0x11, 49 MAX17042_V_empty = 0x12, 50 51 MAX17042_RSLOW = 0x14, 52 53 MAX17042_AvgTA = 0x16, 54 MAX17042_Cycles = 0x17, 55 MAX17042_DesignCap = 0x18, 56 MAX17042_AvgVCELL = 0x19, 57 MAX17042_MinMaxTemp = 0x1A, 58 MAX17042_MinMaxVolt = 0x1B, 59 MAX17042_MinMaxCurr = 0x1C, 60 MAX17042_CONFIG = 0x1D, 61 MAX17042_ICHGTerm = 0x1E, 62 MAX17042_AvCap = 0x1F, 63 MAX17042_ManName = 0x20, 64 MAX17042_DevName = 0x21, 65 MAX17042_DevChem = 0x22, 66 67 MAX17042_TempNom = 0x24, 68 MAX17042_TempCold = 0x25, 69 MAX17042_TempHot = 0x26, 70 MAX17042_AIN = 0x27, 71 MAX17042_LearnCFG = 0x28, 72 MAX17042_SHFTCFG = 0x29, 73 MAX17042_RelaxCFG = 0x2A, 74 MAX17042_MiscCFG = 0x2B, 75 MAX17042_TGAIN = 0x2C, 76 MAx17042_TOFF = 0x2D, 77 MAX17042_CGAIN = 0x2E, 78 MAX17042_COFF = 0x2F, 79 80 MAX17042_Q_empty = 0x33, 81 MAX17042_T_empty = 0x34, 82 83 MAX17042_RCOMP0 = 0x38, 84 MAX17042_TempCo = 0x39, 85 MAX17042_Rx = 0x3A, 86 MAX17042_T_empty0 = 0x3B, 87 MAX17042_TaskPeriod = 0x3C, 88 MAX17042_FSTAT = 0x3D, 89 90 MAX17042_SHDNTIMER = 0x3F, 91 92 MAX17042_VFRemCap = 0x4A, 93 94 MAX17042_QH = 0x4D, 95 MAX17042_QL = 0x4E, 96 }; 97 98 /* 99 * used for setting a register to a desired value 100 * addr : address for a register 101 * data : setting value for the register 102 */ 103 struct max17042_reg_data { 104 u8 addr; 105 u16 data; 106 }; 107 108 struct max17042_platform_data { 109 struct max17042_reg_data *init_data; 110 int num_init_data; /* Number of enties in init_data array */ 111 bool enable_current_sense; 112 113 /* 114 * R_sns in micro-ohms. 115 * default 10000 (if r_sns = 0) as it is the recommended value by 116 * the datasheet although it can be changed by board designers. 117 */ 118 unsigned int r_sns; 119 }; 120 121 #endif /* __MAX17042_BATTERY_H_ */ 122