summaryrefslogtreecommitdiff
path: root/include/linux/mfd/abx500/ab8500-bm.h
blob: 12a5b396921e577925a96afce5e7809373357108 (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
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
/*
 * Copyright ST-Ericsson 2012.
 *
 * Author: Arun Murthy <arun.murthy@stericsson.com>
 * Licensed under GPLv2.
 */

#ifndef _AB8500_BM_H
#define _AB8500_BM_H

#include <linux/kernel.h>
#include <linux/mfd/abx500.h>

/*
 * System control 2 register offsets.
 * bank = 0x02
 */
#define AB8500_MAIN_WDOG_CTRL_REG	0x01
#define AB8500_LOW_BAT_REG		0x03
#define AB8500_BATT_OK_REG		0x04
/*
 * USB/ULPI register offsets
 * Bank : 0x5
 */
#define AB8500_USB_LINE_STAT_REG	0x80
#define AB8500_USB_LINE_CTRL2_REG	0x82
#define AB8500_USB_LINK1_STAT_REG	0x94

/*
 * Charger / status register offfsets
 * Bank : 0x0B
 */
#define AB8500_CH_STATUS1_REG		0x00
#define AB8500_CH_STATUS2_REG		0x01
#define AB8500_CH_USBCH_STAT1_REG	0x02
#define AB8500_CH_USBCH_STAT2_REG	0x03
#define AB8540_CH_USBCH_STAT3_REG	0x04
#define AB8500_CH_STAT_REG		0x05

/*
 * Charger / control register offfsets
 * Bank : 0x0B
 */
#define AB8500_CH_VOLT_LVL_REG		0x40
#define AB8500_CH_VOLT_LVL_MAX_REG	0x41  /*Only in Cut2.0*/
#define AB8500_CH_OPT_CRNTLVL_REG	0x42
#define AB8500_CH_OPT_CRNTLVL_MAX_REG	0x43  /*Only in Cut2.0*/
#define AB8500_CH_WD_TIMER_REG		0x50
#define AB8500_CHARG_WD_CTRL		0x51
#define AB8500_BTEMP_HIGH_TH		0x52
#define AB8500_LED_INDICATOR_PWM_CTRL	0x53
#define AB8500_LED_INDICATOR_PWM_DUTY	0x54
#define AB8500_BATT_OVV			0x55
#define AB8500_CHARGER_CTRL		0x56
#define AB8500_BAT_CTRL_CURRENT_SOURCE	0x60  /*Only in Cut2.0*/

/*
 * Charger / main control register offsets
 * Bank : 0x0B
 */
#define AB8500_MCH_CTRL1		0x80
#define AB8500_MCH_CTRL2		0x81
#define AB8500_MCH_IPT_CURLVL_REG	0x82
#define AB8500_CH_WD_REG		0x83

/*
 * Charger / USB control register offsets
 * Bank : 0x0B
 */
#define AB8500_USBCH_CTRL1_REG		0xC0
#define AB8500_USBCH_CTRL2_REG		0xC1
#define AB8500_USBCH_IPT_CRNTLVL_REG	0xC2
#define AB8540_USB_PP_MODE_REG		0xC5
#define AB8540_USB_PP_CHR_REG		0xC6

/*
 * Gas Gauge register offsets
 * Bank : 0x0C
 */
#define AB8500_GASG_CC_CTRL_REG		0x00
#define AB8500_GASG_CC_ACCU1_REG	0x01
#define AB8500_GASG_CC_ACCU2_REG	0x02
#define AB8500_GASG_CC_ACCU3_REG	0x03
#define AB8500_GASG_CC_ACCU4_REG	0x04
#define AB8500_GASG_CC_SMPL_CNTRL_REG	0x05
#define AB8500_GASG_CC_SMPL_CNTRH_REG	0x06
#define AB8500_GASG_CC_SMPL_CNVL_REG	0x07
#define AB8500_GASG_CC_SMPL_CNVH_REG	0x08
#define AB8500_GASG_CC_CNTR_AVGOFF_REG	0x09
#define AB8500_GASG_CC_OFFSET_REG	0x0A
#define AB8500_GASG_CC_NCOV_ACCU	0x10
#define AB8500_GASG_CC_NCOV_ACCU_CTRL	0x11
#define AB8500_GASG_CC_NCOV_ACCU_LOW	0x12
#define AB8500_GASG_CC_NCOV_ACCU_MED	0x13
#define AB8500_GASG_CC_NCOV_ACCU_HIGH	0x14

/*
 * Interrupt register offsets
 * Bank : 0x0E
 */
#define AB8500_IT_SOURCE2_REG		0x01
#define AB8500_IT_SOURCE21_REG		0x14

/*
 * RTC register offsets
 * Bank: 0x0F
 */
#define AB8500_RTC_BACKUP_CHG_REG	0x0C
#define AB8500_RTC_CC_CONF_REG		0x01
#define AB8500_RTC_CTRL_REG		0x0B
#define AB8500_RTC_CTRL1_REG		0x11

/*
 * OTP register offsets
 * Bank : 0x15
 */
#define AB8500_OTP_CONF_15		0x0E

/* GPADC constants from AB8500 spec, UM0836 */
#define ADC_RESOLUTION			1024
#define ADC_CH_MAIN_MIN			0
#define ADC_CH_MAIN_MAX			20030
#define ADC_CH_VBUS_MIN			0
#define ADC_CH_VBUS_MAX			20030
#define ADC_CH_VBAT_MIN			2300
#define ADC_CH_VBAT_MAX			4800
#define ADC_CH_BKBAT_MIN		0
#define ADC_CH_BKBAT_MAX		3200

/* Main charge i/p current */
#define MAIN_CH_IP_CUR_0P9A		0x80
#define MAIN_CH_IP_CUR_1P0A		0x90
#define MAIN_CH_IP_CUR_1P1A		0xA0
#define MAIN_CH_IP_CUR_1P2A		0xB0
#define MAIN_CH_IP_CUR_1P3A		0xC0
#define MAIN_CH_IP_CUR_1P4A		0xD0
#define MAIN_CH_IP_CUR_1P5A		0xE0

/* ChVoltLevel */
#define CH_VOL_LVL_3P5			0x00
#define CH_VOL_LVL_4P0			0x14
#define CH_VOL_LVL_4P05			0x16
#define CH_VOL_LVL_4P1			0x1B
#define CH_VOL_LVL_4P15			0x20
#define CH_VOL_LVL_4P2			0x25
#define CH_VOL_LVL_4P6			0x4D

/* ChOutputCurrentLevel */
#define CH_OP_CUR_LVL_0P1		0x00
#define CH_OP_CUR_LVL_0P2		0x01
#define CH_OP_CUR_LVL_0P3		0x02
#define CH_OP_CUR_LVL_0P4		0x03
#define CH_OP_CUR_LVL_0P5		0x04
#define CH_OP_CUR_LVL_0P6		0x05
#define CH_OP_CUR_LVL_0P7		0x06
#define CH_OP_CUR_LVL_0P8		0x07
#define CH_OP_CUR_LVL_0P9		0x08
#define CH_OP_CUR_LVL_1P4		0x0D
#define CH_OP_CUR_LVL_1P5		0x0E
#define CH_OP_CUR_LVL_1P6		0x0F
#define CH_OP_CUR_LVL_2P		0x3F

/* BTEMP High thermal limits */
#define BTEMP_HIGH_TH_57_0		0x00
#define BTEMP_HIGH_TH_52		0x01
#define BTEMP_HIGH_TH_57_1		0x02
#define BTEMP_HIGH_TH_62		0x03

/* current is mA */
#define USB_0P1A			100
#define USB_0P2A			200
#define USB_0P3A			300
#define USB_0P4A			400
#define USB_0P5A			500

#define LOW_BAT_3P1V			0x20
#define LOW_BAT_2P3V			0x00
#define LOW_BAT_RESET			0x01
#define LOW_BAT_ENABLE			0x01

/* Backup battery constants */
#define BUP_ICH_SEL_50UA		0x00
#define BUP_ICH_SEL_150UA		0x04
#define BUP_ICH_SEL_300UA		0x08
#define BUP_ICH_SEL_700UA		0x0C

enum bup_vch_sel {
	BUP_VCH_SEL_2P5V,
	BUP_VCH_SEL_2P6V,
	BUP_VCH_SEL_2P8V,
	BUP_VCH_SEL_3P1V,
	/*
	 * Note that the following 5 values 2.7v, 2.9v, 3.0v, 3.2v, 3.3v
	 * are only available on ab8540. You can't choose these 5
	 * voltage on ab8500/ab8505/ab9540.
	 */
	BUP_VCH_SEL_2P7V,
	BUP_VCH_SEL_2P9V,
	BUP_VCH_SEL_3P0V,
	BUP_VCH_SEL_3P2V,
	BUP_VCH_SEL_3P3V,
};

#define BUP_VCH_RANGE		0x02
#define VBUP33_VRTCN		0x01

/* Battery OVV constants */
#define BATT_OVV_ENA			0x02
#define BATT_OVV_TH_3P7			0x00
#define BATT_OVV_TH_4P75		0x01

/* A value to indicate over voltage */
#define BATT_OVV_VALUE			4750

/* VBUS OVV constants */
#define VBUS_OVV_SELECT_MASK		0x78
#define VBUS_OVV_SELECT_5P6V		0x00
#define VBUS_OVV_SELECT_5P7V		0x08
#define VBUS_OVV_SELECT_5P8V		0x10
#define VBUS_OVV_SELECT_5P9V		0x18
#define VBUS_OVV_SELECT_6P0V		0x20
#define VBUS_OVV_SELECT_6P1V		0x28
#define VBUS_OVV_SELECT_6P2V		0x30
#define VBUS_OVV_SELECT_6P3V		0x38

#define VBUS_AUTO_IN_CURR_LIM_ENA	0x04

/* Fuel Gauge constants */
#define RESET_ACCU			0x02
#define READ_REQ			0x01
#define CC_DEEP_SLEEP_ENA		0x02
#define CC_PWR_UP_ENA			0x01
#define CC_SAMPLES_40			0x28
#define RD_NCONV_ACCU_REQ		0x01
#define CC_CALIB			0x08
#define CC_INTAVGOFFSET_ENA		0x10
#define CC_MUXOFFSET			0x80
#define CC_INT_CAL_N_AVG_MASK		0x60
#define CC_INT_CAL_SAMPLES_16		0x40
#define CC_INT_CAL_SAMPLES_8		0x20
#define CC_INT_CAL_SAMPLES_4		0x00

/* RTC constants */
#define RTC_BUP_CH_ENA			0x10

/* BatCtrl Current Source Constants */
#define BAT_CTRL_7U_ENA			0x01
#define BAT_CTRL_20U_ENA		0x02
#define BAT_CTRL_18U_ENA		0x01
#define BAT_CTRL_16U_ENA		0x02
#define BAT_CTRL_60U_ENA		0x01
#define BAT_CTRL_120U_ENA		0x02
#define BAT_CTRL_CMP_ENA		0x04
#define FORCE_BAT_CTRL_CMP_HIGH		0x08
#define BAT_CTRL_PULL_UP_ENA		0x10

/* Battery type */
#define BATTERY_UNKNOWN			00

/* Registers for pcut feature in ab8505 and ab9540 */
#define AB8505_RTC_PCUT_CTL_STATUS_REG	0x12
#define AB8505_RTC_PCUT_TIME_REG	0x13
#define AB8505_RTC_PCUT_MAX_TIME_REG	0x14
#define AB8505_RTC_PCUT_FLAG_TIME_REG	0x15
#define AB8505_RTC_PCUT_RESTART_REG	0x16
#define AB8505_RTC_PCUT_DEBOUNCE_REG	0x17

/* USB Power Path constants for ab8540 */
#define BUS_VSYS_VOL_SELECT_MASK		0x06
#define BUS_VSYS_VOL_SELECT_3P6V		0x00
#define BUS_VSYS_VOL_SELECT_3P325V		0x02
#define BUS_VSYS_VOL_SELECT_3P9V		0x04
#define BUS_VSYS_VOL_SELECT_4P3V		0x06
#define BUS_POWER_PATH_MODE_ENA			0x01
#define BUS_PP_PRECHG_CURRENT_MASK		0x0E
#define BUS_POWER_PATH_PRECHG_ENA		0x01

/**
 * struct res_to_temp - defines one point in a temp to res curve. To
 * be used in battery packs that combines the identification resistor with a
 * NTC resistor.
 * @temp:			battery pack temperature in Celcius
 * @resist:			NTC resistor net total resistance
 */
struct res_to_temp {
	int temp;
	int resist;
};

/**
 * struct batres_vs_temp - defines one point in a temp vs battery internal
 * resistance curve.
 * @temp:			battery pack temperature in Celcius
 * @resist:			battery internal reistance in mOhm
 */
struct batres_vs_temp {
	int temp;
	int resist;
};

/* Forward declaration */
struct ab8500_fg;

/**
 * struct ab8500_fg_parameters - Fuel gauge algorithm parameters, in seconds
 * if not specified
 * @recovery_sleep_timer:	Time between measurements while recovering
 * @recovery_total_time:	Total recovery time
 * @init_timer:			Measurement interval during startup
 * @init_discard_time:		Time we discard voltage measurement at startup
 * @init_total_time:		Total init time during startup
 * @high_curr_time:		Time current has to be high to go to recovery
 * @accu_charging:		FG accumulation time while charging
 * @accu_high_curr:		FG accumulation time in high current mode
 * @high_curr_threshold:	High current threshold, in mA
 * @lowbat_threshold:		Low battery threshold, in mV
 * @battok_falling_th_sel0	Threshold in mV for battOk signal sel0
 *				Resolution in 50 mV step.
 * @battok_raising_th_sel1	Threshold in mV for battOk signal sel1
 *				Resolution in 50 mV step.
 * @user_cap_limit		Capacity reported from user must be within this
 *				limit to be considered as sane, in percentage
 *				points.
 * @maint_thres			This is the threshold where we stop reporting
 *				battery full while in maintenance, in per cent
 * @pcut_enable:			Enable power cut feature in ab8505
 * @pcut_max_time:		Max time threshold
 * @pcut_flag_time:		Flagtime threshold
 * @pcut_max_restart:		Max number of restarts
 * @pcut_debunce_time:	Sets battery debounce time
 */
struct ab8500_fg_parameters {
	int recovery_sleep_timer;
	int recovery_total_time;
	int init_timer;
	int init_discard_time;
	int init_total_time;
	int high_curr_time;
	int accu_charging;
	int accu_high_curr;
	int high_curr_threshold;
	int lowbat_threshold;
	int battok_falling_th_sel0;
	int battok_raising_th_sel1;
	int user_cap_limit;
	int maint_thres;
	bool pcut_enable;
	u8 pcut_max_time;
	u8 pcut_flag_time;
	u8 pcut_max_restart;
	u8 pcut_debunce_time;
};

/**
 * struct ab8500_charger_maximization - struct used by the board config.
 * @use_maxi:		Enable maximization for this battery type
 * @maxi_chg_curr:	Maximum charger current allowed
 * @maxi_wait_cycles:	cycles to wait before setting charger current
 * @charger_curr_step	delta between two charger current settings (mA)
 */
struct ab8500_maxim_parameters {
	bool ena_maxi;
	int chg_curr;
	int wait_cycles;
	int charger_curr_step;
};

/**
 * struct ab8500_bm_capacity_levels - ab8500 capacity level data
 * @critical:		critical capacity level in percent
 * @low:		low capacity level in percent
 * @normal:		normal capacity level in percent
 * @high:		high capacity level in percent
 * @full:		full capacity level in percent
 */
struct ab8500_bm_capacity_levels {
	int critical;
	int low;
	int normal;
	int high;
	int full;
};

/**
 * struct ab8500_bm_charger_parameters - Charger specific parameters
 * @usb_volt_max:	maximum allowed USB charger voltage in mV
 * @usb_curr_max:	maximum allowed USB charger current in mA
 * @ac_volt_max:	maximum allowed AC charger voltage in mV
 * @ac_curr_max:	maximum allowed AC charger current in mA
 */
struct ab8500_bm_charger_parameters {
	int usb_volt_max;
	int usb_curr_max;
	int ac_volt_max;
	int ac_curr_max;
};

/**
 * struct ab8500_bm_data - ab8500 battery management data
 * @temp_under		under this temp, charging is stopped
 * @temp_low		between this temp and temp_under charging is reduced
 * @temp_high		between this temp and temp_over charging is reduced
 * @temp_over		over this temp, charging is stopped
 * @temp_interval_chg	temperature measurement interval in s when charging
 * @temp_interval_nochg	temperature measurement interval in s when not charging
 * @main_safety_tmr_h	safety timer for main charger
 * @usb_safety_tmr_h	safety timer for usb charger
 * @bkup_bat_v		voltage which we charge the backup battery with
 * @bkup_bat_i		current which we charge the backup battery with
 * @no_maintenance	indicates that maintenance charging is disabled
 * @capacity_scaling    indicates whether capacity scaling is to be used
 * @adc_therm		placement of thermistor, batctrl or battemp adc
 * @chg_unknown_bat	flag to enable charging of unknown batteries
 * @enable_overshoot	flag to enable VBAT overshoot control
 * @fg_res		resistance of FG resistor in 0.1mOhm
 * @n_btypes		number of elements in array bat_type
 * @batt_id		index of the identified battery in array bat_type
 * @interval_charging	charge alg cycle period time when charging (sec)
 * @interval_not_charging charge alg cycle period time when not charging (sec)
 * @temp_hysteresis	temperature hysteresis
 * @gnd_lift_resistance	Battery ground to phone ground resistance (mOhm)
 * @maxi:		maximization parameters
 * @cap_levels		capacity in percent for the different capacity levels
 * @bat_type		table of supported battery types
 * @chg_params		charger parameters
 * @fg_params		fuel gauge parameters
 */
struct ab8500_bm_data {
	int temp_under;
	int temp_low;
	int temp_high;
	int temp_over;
	int temp_interval_chg;
	int temp_interval_nochg;
	int main_safety_tmr_h;
	int usb_safety_tmr_h;
	int bkup_bat_v;
	int bkup_bat_i;
	bool no_maintenance;
	bool capacity_scaling;
	bool chg_unknown_bat;
	bool enable_overshoot;
	enum abx500_adc_therm adc_therm;
	int fg_res;
	int n_btypes;
	int batt_id;
	int interval_charging;
	int interval_not_charging;
	int temp_hysteresis;
	int gnd_lift_resistance;
	const struct ab8500_maxim_parameters *maxi;
	const struct ab8500_bm_capacity_levels *cap_levels;
	const struct ab8500_bm_charger_parameters *chg_params;
	const struct ab8500_fg_parameters *fg_params;
};

struct ab8500_btemp;
struct ab8500_gpadc;
struct ab8500_fg;

#ifdef CONFIG_AB8500_BM
extern struct abx500_bm_data ab8500_bm_data;

void ab8500_charger_usb_state_changed(u8 bm_usb_state, u16 mA);
struct ab8500_btemp *ab8500_btemp_get(void);
int ab8500_btemp_get_batctrl_temp(struct ab8500_btemp *btemp);
int ab8500_btemp_get_temp(struct ab8500_btemp *btemp);
struct ab8500_fg *ab8500_fg_get(void);
int ab8500_fg_inst_curr_blocking(struct ab8500_fg *dev);
int ab8500_fg_inst_curr_start(struct ab8500_fg *di);
int ab8500_fg_inst_curr_finalize(struct ab8500_fg *di, int *res);
int ab8500_fg_inst_curr_started(struct ab8500_fg *di);
int ab8500_fg_inst_curr_done(struct ab8500_fg *di);

#else
static struct abx500_bm_data ab8500_bm_data;
#endif
#endif /* _AB8500_BM_H */