summaryrefslogtreecommitdiff
path: root/include/linux/power/max17042_battery.h
blob: 4badd532294908ac1d38b2a96f9b33e4d65b2640 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Fuel gauge driver for Maxim 17042 / 8966 / 8997
 *  Note that Maxim 8966 and 8997 are mfd and this is its subdevice.
 *
 * Copyright (C) 2011 Samsung Electronics
 * MyungJoo Ham <myungjoo.ham@samsung.com>
 */

#ifndef __MAX17042_BATTERY_H_
#define __MAX17042_BATTERY_H_

#define MAX17042_STATUS_BattAbsent	(1 << 3)
#define MAX17042_BATTERY_FULL		(95)   /* Recommend. FullSOCThr value */
#define MAX17042_DEFAULT_SNS_RESISTOR	(10000)
#define MAX17042_DEFAULT_VMIN		(3000)
#define MAX17042_DEFAULT_VMAX		(4500) /* LiHV cell max */
#define MAX17042_DEFAULT_TEMP_MIN	(0)    /* For sys without temp sensor */
#define MAX17042_DEFAULT_TEMP_MAX	(700)  /* 70 degrees Celcius */

/* Consider RepCap which is less then 10 units below FullCAP full */
#define MAX17042_FULL_THRESHOLD		10

#define MAX17042_CHARACTERIZATION_DATA_SIZE 48

enum max17042_register {
	MAX17042_STATUS		= 0x00,
	MAX17042_VALRT_Th	= 0x01,
	MAX17042_TALRT_Th	= 0x02,
	MAX17042_SALRT_Th	= 0x03,
	MAX17042_AtRate		= 0x04,
	MAX17042_RepCap		= 0x05,
	MAX17042_RepSOC		= 0x06,
	MAX17042_Age		= 0x07,
	MAX17042_TEMP		= 0x08,
	MAX17042_VCELL		= 0x09,
	MAX17042_Current	= 0x0A,
	MAX17042_AvgCurrent	= 0x0B,

	MAX17042_SOC		= 0x0D,
	MAX17042_AvSOC		= 0x0E,
	MAX17042_RemCap		= 0x0F,
	MAX17042_FullCAP	= 0x10,
	MAX17042_TTE		= 0x11,
	MAX17042_V_empty	= 0x12,

	MAX17042_RSLOW		= 0x14,

	MAX17042_AvgTA		= 0x16,
	MAX17042_Cycles		= 0x17,
	MAX17042_DesignCap	= 0x18,
	MAX17042_AvgVCELL	= 0x19,
	MAX17042_MinMaxTemp	= 0x1A,
	MAX17042_MinMaxVolt	= 0x1B,
	MAX17042_MinMaxCurr	= 0x1C,
	MAX17042_CONFIG		= 0x1D,
	MAX17042_ICHGTerm	= 0x1E,
	MAX17042_AvCap		= 0x1F,
	MAX17042_ManName	= 0x20,
	MAX17042_DevName	= 0x21,

	MAX17042_FullCAPNom	= 0x23,
	MAX17042_TempNom	= 0x24,
	MAX17042_TempLim	= 0x25,
	MAX17042_TempHot	= 0x26,
	MAX17042_AIN		= 0x27,
	MAX17042_LearnCFG	= 0x28,
	MAX17042_FilterCFG	= 0x29,
	MAX17042_RelaxCFG	= 0x2A,
	MAX17042_MiscCFG	= 0x2B,
	MAX17042_TGAIN		= 0x2C,
	MAx17042_TOFF		= 0x2D,
	MAX17042_CGAIN		= 0x2E,
	MAX17042_COFF		= 0x2F,

	MAX17042_MaskSOC	= 0x32,
	MAX17042_SOC_empty	= 0x33,
	MAX17042_T_empty	= 0x34,

	MAX17042_FullCAP0       = 0x35,
	MAX17042_LAvg_empty	= 0x36,
	MAX17042_FCTC		= 0x37,
	MAX17042_RCOMP0		= 0x38,
	MAX17042_TempCo		= 0x39,
	MAX17042_EmptyTempCo	= 0x3A,
	MAX17042_K_empty0	= 0x3B,
	MAX17042_TaskPeriod	= 0x3C,
	MAX17042_FSTAT		= 0x3D,

	MAX17042_SHDNTIMER	= 0x3F,

	MAX17042_dQacc		= 0x45,
	MAX17042_dPacc		= 0x46,

	MAX17042_VFSOC0		= 0x48,

	MAX17042_QH		= 0x4D,
	MAX17042_QL		= 0x4E,

	MAX17042_VFSOC0Enable	= 0x60,
	MAX17042_MLOCKReg1	= 0x62,
	MAX17042_MLOCKReg2	= 0x63,

	MAX17042_MODELChrTbl	= 0x80,

	MAX17042_OCV		= 0xEE,

	MAX17042_OCVInternal	= 0xFB,

	MAX17042_VFSOC		= 0xFF,
};

/* Registers specific to max17047/50 */
enum max17047_register {
	MAX17047_QRTbl00	= 0x12,
	MAX17047_FullSOCThr	= 0x13,
	MAX17047_QRTbl10	= 0x22,
	MAX17047_QRTbl20	= 0x32,
	MAX17047_V_empty	= 0x3A,
	MAX17047_QRTbl30	= 0x42,
};

enum max170xx_chip_type {
	MAXIM_DEVICE_TYPE_UNKNOWN	= 0,
	MAXIM_DEVICE_TYPE_MAX17042,
	MAXIM_DEVICE_TYPE_MAX17047,
	MAXIM_DEVICE_TYPE_MAX17050,

	MAXIM_DEVICE_TYPE_NUM
};

/*
 * used for setting a register to a desired value
 * addr : address for a register
 * data : setting value for the register
 */
struct max17042_reg_data {
	u8 addr;
	u16 data;
};

struct max17042_config_data {
	/* External current sense resistor value in milli-ohms */
	u32	cur_sense_val;

	/* A/D measurement */
	u16	tgain;		/* 0x2C */
	u16	toff;		/* 0x2D */
	u16	cgain;		/* 0x2E */
	u16	coff;		/* 0x2F */

	/* Alert / Status */
	u16	valrt_thresh;	/* 0x01 */
	u16	talrt_thresh;	/* 0x02 */
	u16	soc_alrt_thresh;	/* 0x03 */
	u16	config;		/* 0x01D */
	u16	shdntimer;	/* 0x03F */

	/* App data */
	u16	full_soc_thresh;	/* 0x13 */
	u16	design_cap;	/* 0x18 */
	u16	ichgt_term;	/* 0x1E */

	/* MG3 config */
	u16	at_rate;	/* 0x04 */
	u16	learn_cfg;	/* 0x28 */
	u16	filter_cfg;	/* 0x29 */
	u16	relax_cfg;	/* 0x2A */
	u16	misc_cfg;	/* 0x2B */
	u16	masksoc;	/* 0x32 */

	/* MG3 save and restore */
	u16	fullcap;	/* 0x10 */
	u16	fullcapnom;	/* 0x23 */
	u16	socempty;	/* 0x33 */
	u16	lavg_empty;	/* 0x36 */
	u16	dqacc;		/* 0x45 */
	u16	dpacc;		/* 0x46 */
	u16	qrtbl00;	/* 0x12 */
	u16	qrtbl10;	/* 0x22 */
	u16	qrtbl20;	/* 0x32 */
	u16	qrtbl30;	/* 0x42 */

	/* Cell technology from power_supply.h */
	u16	cell_technology;

	/* Cell Data */
	u16	vempty;		/* 0x12 */
	u16	temp_nom;	/* 0x24 */
	u16	temp_lim;	/* 0x25 */
	u16	fctc;		/* 0x37 */
	u16	rcomp0;		/* 0x38 */
	u16	tcompc0;	/* 0x39 */
	u16	empty_tempco;	/* 0x3A */
	u16	kempty0;	/* 0x3B */
	u16	cell_char_tbl[MAX17042_CHARACTERIZATION_DATA_SIZE];
} __packed;

struct max17042_platform_data {
	struct max17042_reg_data *init_data;
	struct max17042_config_data *config_data;
	int num_init_data; /* Number of enties in init_data array */
	bool enable_current_sense;
	bool enable_por_init; /* Use POR init from Maxim appnote */

	/*
	 * R_sns in micro-ohms.
	 * default 10000 (if r_sns = 0) as it is the recommended value by
	 * the datasheet although it can be changed by board designers.
	 */
	unsigned int r_sns;
	int         vmin;	/* in millivolts */
	int         vmax;	/* in millivolts */
	int         temp_min;	/* in tenths of degree Celsius */
	int         temp_max;	/* in tenths of degree Celsius */
};

#endif /* __MAX17042_BATTERY_H_ */