2 * Copyright ST-Ericsson 2012.
4 * Author: Arun Murthy <arun.murthy@stericsson.com>
5 * Licensed under GPLv2.
11 #include <linux/kernel.h>
12 #include <linux/mfd/abx500.h>
15 * System control 2 register offsets.
18 #define AB8500_MAIN_WDOG_CTRL_REG 0x01
19 #define AB8500_LOW_BAT_REG 0x03
20 #define AB8500_BATT_OK_REG 0x04
22 * USB/ULPI register offsets
25 #define AB8500_USB_LINE_STAT_REG 0x80
26 #define AB8500_USB_LINE_CTRL2_REG 0x82
27 #define AB8500_USB_LINK1_STAT_REG 0x94
30 * Charger / status register offfsets
33 #define AB8500_CH_STATUS1_REG 0x00
34 #define AB8500_CH_STATUS2_REG 0x01
35 #define AB8500_CH_USBCH_STAT1_REG 0x02
36 #define AB8500_CH_USBCH_STAT2_REG 0x03
37 #define AB8540_CH_USBCH_STAT3_REG 0x04
38 #define AB8500_CH_STAT_REG 0x05
41 * Charger / control register offfsets
44 #define AB8500_CH_VOLT_LVL_REG 0x40
45 #define AB8500_CH_VOLT_LVL_MAX_REG 0x41 /*Only in Cut2.0*/
46 #define AB8500_CH_OPT_CRNTLVL_REG 0x42
47 #define AB8500_CH_OPT_CRNTLVL_MAX_REG 0x43 /*Only in Cut2.0*/
48 #define AB8500_CH_WD_TIMER_REG 0x50
49 #define AB8500_CHARG_WD_CTRL 0x51
50 #define AB8500_BTEMP_HIGH_TH 0x52
51 #define AB8500_LED_INDICATOR_PWM_CTRL 0x53
52 #define AB8500_LED_INDICATOR_PWM_DUTY 0x54
53 #define AB8500_BATT_OVV 0x55
54 #define AB8500_CHARGER_CTRL 0x56
55 #define AB8500_BAT_CTRL_CURRENT_SOURCE 0x60 /*Only in Cut2.0*/
58 * Charger / main control register offsets
61 #define AB8500_MCH_CTRL1 0x80
62 #define AB8500_MCH_CTRL2 0x81
63 #define AB8500_MCH_IPT_CURLVL_REG 0x82
64 #define AB8500_CH_WD_REG 0x83
67 * Charger / USB control register offsets
70 #define AB8500_USBCH_CTRL1_REG 0xC0
71 #define AB8500_USBCH_CTRL2_REG 0xC1
72 #define AB8500_USBCH_IPT_CRNTLVL_REG 0xC2
73 #define AB8540_USB_PP_MODE_REG 0xC5
74 #define AB8540_USB_PP_CHR_REG 0xC6
77 * Gas Gauge register offsets
80 #define AB8500_GASG_CC_CTRL_REG 0x00
81 #define AB8500_GASG_CC_ACCU1_REG 0x01
82 #define AB8500_GASG_CC_ACCU2_REG 0x02
83 #define AB8500_GASG_CC_ACCU3_REG 0x03
84 #define AB8500_GASG_CC_ACCU4_REG 0x04
85 #define AB8500_GASG_CC_SMPL_CNTRL_REG 0x05
86 #define AB8500_GASG_CC_SMPL_CNTRH_REG 0x06
87 #define AB8500_GASG_CC_SMPL_CNVL_REG 0x07
88 #define AB8500_GASG_CC_SMPL_CNVH_REG 0x08
89 #define AB8500_GASG_CC_CNTR_AVGOFF_REG 0x09
90 #define AB8500_GASG_CC_OFFSET_REG 0x0A
91 #define AB8500_GASG_CC_NCOV_ACCU 0x10
92 #define AB8500_GASG_CC_NCOV_ACCU_CTRL 0x11
93 #define AB8500_GASG_CC_NCOV_ACCU_LOW 0x12
94 #define AB8500_GASG_CC_NCOV_ACCU_MED 0x13
95 #define AB8500_GASG_CC_NCOV_ACCU_HIGH 0x14
98 * Interrupt register offsets
101 #define AB8500_IT_SOURCE2_REG 0x01
102 #define AB8500_IT_SOURCE21_REG 0x14
105 * RTC register offsets
108 #define AB8500_RTC_BACKUP_CHG_REG 0x0C
109 #define AB8500_RTC_CC_CONF_REG 0x01
110 #define AB8500_RTC_CTRL_REG 0x0B
111 #define AB8500_RTC_CTRL1_REG 0x11
114 * OTP register offsets
117 #define AB8500_OTP_CONF_15 0x0E
119 /* GPADC constants from AB8500 spec, UM0836 */
120 #define ADC_RESOLUTION 1024
121 #define ADC_CH_MAIN_MIN 0
122 #define ADC_CH_MAIN_MAX 20030
123 #define ADC_CH_VBUS_MIN 0
124 #define ADC_CH_VBUS_MAX 20030
125 #define ADC_CH_VBAT_MIN 2300
126 #define ADC_CH_VBAT_MAX 4800
127 #define ADC_CH_BKBAT_MIN 0
128 #define ADC_CH_BKBAT_MAX 3200
130 /* Main charge i/p current */
131 #define MAIN_CH_IP_CUR_0P9A 0x80
132 #define MAIN_CH_IP_CUR_1P0A 0x90
133 #define MAIN_CH_IP_CUR_1P1A 0xA0
134 #define MAIN_CH_IP_CUR_1P2A 0xB0
135 #define MAIN_CH_IP_CUR_1P3A 0xC0
136 #define MAIN_CH_IP_CUR_1P4A 0xD0
137 #define MAIN_CH_IP_CUR_1P5A 0xE0
140 #define CH_VOL_LVL_3P5 0x00
141 #define CH_VOL_LVL_4P0 0x14
142 #define CH_VOL_LVL_4P05 0x16
143 #define CH_VOL_LVL_4P1 0x1B
144 #define CH_VOL_LVL_4P15 0x20
145 #define CH_VOL_LVL_4P2 0x25
146 #define CH_VOL_LVL_4P6 0x4D
148 /* ChOutputCurrentLevel */
149 #define CH_OP_CUR_LVL_0P1 0x00
150 #define CH_OP_CUR_LVL_0P2 0x01
151 #define CH_OP_CUR_LVL_0P3 0x02
152 #define CH_OP_CUR_LVL_0P4 0x03
153 #define CH_OP_CUR_LVL_0P5 0x04
154 #define CH_OP_CUR_LVL_0P6 0x05
155 #define CH_OP_CUR_LVL_0P7 0x06
156 #define CH_OP_CUR_LVL_0P8 0x07
157 #define CH_OP_CUR_LVL_0P9 0x08
158 #define CH_OP_CUR_LVL_1P4 0x0D
159 #define CH_OP_CUR_LVL_1P5 0x0E
160 #define CH_OP_CUR_LVL_1P6 0x0F
161 #define CH_OP_CUR_LVL_2P 0x3F
163 /* BTEMP High thermal limits */
164 #define BTEMP_HIGH_TH_57_0 0x00
165 #define BTEMP_HIGH_TH_52 0x01
166 #define BTEMP_HIGH_TH_57_1 0x02
167 #define BTEMP_HIGH_TH_62 0x03
176 #define LOW_BAT_3P1V 0x20
177 #define LOW_BAT_2P3V 0x00
178 #define LOW_BAT_RESET 0x01
179 #define LOW_BAT_ENABLE 0x01
181 /* Backup battery constants */
182 #define BUP_ICH_SEL_50UA 0x00
183 #define BUP_ICH_SEL_150UA 0x04
184 #define BUP_ICH_SEL_300UA 0x08
185 #define BUP_ICH_SEL_700UA 0x0C
193 * Note that the following 5 values 2.7v, 2.9v, 3.0v, 3.2v, 3.3v
194 * are only available on ab8540. You can't choose these 5
195 * voltage on ab8500/ab8505/ab9540.
204 #define BUP_VCH_RANGE 0x02
205 #define VBUP33_VRTCN 0x01
207 /* Battery OVV constants */
208 #define BATT_OVV_ENA 0x02
209 #define BATT_OVV_TH_3P7 0x00
210 #define BATT_OVV_TH_4P75 0x01
212 /* A value to indicate over voltage */
213 #define BATT_OVV_VALUE 4750
215 /* VBUS OVV constants */
216 #define VBUS_OVV_SELECT_MASK 0x78
217 #define VBUS_OVV_SELECT_5P6V 0x00
218 #define VBUS_OVV_SELECT_5P7V 0x08
219 #define VBUS_OVV_SELECT_5P8V 0x10
220 #define VBUS_OVV_SELECT_5P9V 0x18
221 #define VBUS_OVV_SELECT_6P0V 0x20
222 #define VBUS_OVV_SELECT_6P1V 0x28
223 #define VBUS_OVV_SELECT_6P2V 0x30
224 #define VBUS_OVV_SELECT_6P3V 0x38
226 #define VBUS_AUTO_IN_CURR_LIM_ENA 0x04
228 /* Fuel Gauge constants */
229 #define RESET_ACCU 0x02
230 #define READ_REQ 0x01
231 #define CC_DEEP_SLEEP_ENA 0x02
232 #define CC_PWR_UP_ENA 0x01
233 #define CC_SAMPLES_40 0x28
234 #define RD_NCONV_ACCU_REQ 0x01
235 #define CC_CALIB 0x08
236 #define CC_INTAVGOFFSET_ENA 0x10
237 #define CC_MUXOFFSET 0x80
238 #define CC_INT_CAL_N_AVG_MASK 0x60
239 #define CC_INT_CAL_SAMPLES_16 0x40
240 #define CC_INT_CAL_SAMPLES_8 0x20
241 #define CC_INT_CAL_SAMPLES_4 0x00
244 #define RTC_BUP_CH_ENA 0x10
246 /* BatCtrl Current Source Constants */
247 #define BAT_CTRL_7U_ENA 0x01
248 #define BAT_CTRL_20U_ENA 0x02
249 #define BAT_CTRL_18U_ENA 0x01
250 #define BAT_CTRL_16U_ENA 0x02
251 #define BAT_CTRL_CMP_ENA 0x04
252 #define FORCE_BAT_CTRL_CMP_HIGH 0x08
253 #define BAT_CTRL_PULL_UP_ENA 0x10
256 #define BATTERY_UNKNOWN 00
258 /* Registers for pcut feature in ab8505 and ab9540 */
259 #define AB8505_RTC_PCUT_CTL_STATUS_REG 0x12
260 #define AB8505_RTC_PCUT_TIME_REG 0x13
261 #define AB8505_RTC_PCUT_MAX_TIME_REG 0x14
262 #define AB8505_RTC_PCUT_FLAG_TIME_REG 0x15
263 #define AB8505_RTC_PCUT_RESTART_REG 0x16
264 #define AB8505_RTC_PCUT_DEBOUNCE_REG 0x17
266 /* USB Power Path constants for ab8540 */
267 #define BUS_VSYS_VOL_SELECT_MASK 0x06
268 #define BUS_VSYS_VOL_SELECT_3P6V 0x00
269 #define BUS_VSYS_VOL_SELECT_3P325V 0x02
270 #define BUS_VSYS_VOL_SELECT_3P9V 0x04
271 #define BUS_VSYS_VOL_SELECT_4P3V 0x06
272 #define BUS_POWER_PATH_MODE_ENA 0x01
273 #define BUS_PP_PRECHG_CURRENT_MASK 0x0E
274 #define BUS_POWER_PATH_PRECHG_ENA 0x01
277 * struct res_to_temp - defines one point in a temp to res curve. To
278 * be used in battery packs that combines the identification resistor with a
280 * @temp: battery pack temperature in Celsius
281 * @resist: NTC resistor net total resistance
289 * struct batres_vs_temp - defines one point in a temp vs battery internal
291 * @temp: battery pack temperature in Celsius
292 * @resist: battery internal reistance in mOhm
294 struct batres_vs_temp {
299 /* Forward declaration */
303 * struct ab8500_fg_parameters - Fuel gauge algorithm parameters, in seconds
305 * @recovery_sleep_timer: Time between measurements while recovering
306 * @recovery_total_time: Total recovery time
307 * @init_timer: Measurement interval during startup
308 * @init_discard_time: Time we discard voltage measurement at startup
309 * @init_total_time: Total init time during startup
310 * @high_curr_time: Time current has to be high to go to recovery
311 * @accu_charging: FG accumulation time while charging
312 * @accu_high_curr: FG accumulation time in high current mode
313 * @high_curr_threshold: High current threshold, in mA
314 * @lowbat_threshold: Low battery threshold, in mV
315 * @battok_falling_th_sel0 Threshold in mV for battOk signal sel0
316 * Resolution in 50 mV step.
317 * @battok_raising_th_sel1 Threshold in mV for battOk signal sel1
318 * Resolution in 50 mV step.
319 * @user_cap_limit Capacity reported from user must be within this
320 * limit to be considered as sane, in percentage
322 * @maint_thres This is the threshold where we stop reporting
323 * battery full while in maintenance, in per cent
324 * @pcut_enable: Enable power cut feature in ab8505
325 * @pcut_max_time: Max time threshold
326 * @pcut_flag_time: Flagtime threshold
327 * @pcut_max_restart: Max number of restarts
328 * @pcut_debunce_time: Sets battery debounce time
330 struct ab8500_fg_parameters {
331 int recovery_sleep_timer;
332 int recovery_total_time;
334 int init_discard_time;
339 int high_curr_threshold;
340 int lowbat_threshold;
341 int battok_falling_th_sel0;
342 int battok_raising_th_sel1;
349 u8 pcut_debunce_time;
353 * struct ab8500_charger_maximization - struct used by the board config.
354 * @use_maxi: Enable maximization for this battery type
355 * @maxi_chg_curr: Maximum charger current allowed
356 * @maxi_wait_cycles: cycles to wait before setting charger current
357 * @charger_curr_step delta between two charger current settings (mA)
359 struct ab8500_maxim_parameters {
363 int charger_curr_step;
367 * struct ab8500_bm_capacity_levels - ab8500 capacity level data
368 * @critical: critical capacity level in percent
369 * @low: low capacity level in percent
370 * @normal: normal capacity level in percent
371 * @high: high capacity level in percent
372 * @full: full capacity level in percent
374 struct ab8500_bm_capacity_levels {
383 * struct ab8500_bm_charger_parameters - Charger specific parameters
384 * @usb_volt_max: maximum allowed USB charger voltage in mV
385 * @usb_curr_max: maximum allowed USB charger current in mA
386 * @ac_volt_max: maximum allowed AC charger voltage in mV
387 * @ac_curr_max: maximum allowed AC charger current in mA
389 struct ab8500_bm_charger_parameters {
397 * struct ab8500_bm_data - ab8500 battery management data
398 * @temp_under under this temp, charging is stopped
399 * @temp_low between this temp and temp_under charging is reduced
400 * @temp_high between this temp and temp_over charging is reduced
401 * @temp_over over this temp, charging is stopped
402 * @temp_interval_chg temperature measurement interval in s when charging
403 * @temp_interval_nochg temperature measurement interval in s when not charging
404 * @main_safety_tmr_h safety timer for main charger
405 * @usb_safety_tmr_h safety timer for usb charger
406 * @bkup_bat_v voltage which we charge the backup battery with
407 * @bkup_bat_i current which we charge the backup battery with
408 * @no_maintenance indicates that maintenance charging is disabled
409 * @capacity_scaling indicates whether capacity scaling is to be used
410 * @adc_therm placement of thermistor, batctrl or battemp adc
411 * @chg_unknown_bat flag to enable charging of unknown batteries
412 * @enable_overshoot flag to enable VBAT overshoot control
413 * @fg_res resistance of FG resistor in 0.1mOhm
414 * @n_btypes number of elements in array bat_type
415 * @batt_id index of the identified battery in array bat_type
416 * @interval_charging charge alg cycle period time when charging (sec)
417 * @interval_not_charging charge alg cycle period time when not charging (sec)
418 * @temp_hysteresis temperature hysteresis
419 * @gnd_lift_resistance Battery ground to phone ground resistance (mOhm)
420 * @maxi: maximization parameters
421 * @cap_levels capacity in percent for the different capacity levels
422 * @bat_type table of supported battery types
423 * @chg_params charger parameters
424 * @fg_params fuel gauge parameters
426 struct ab8500_bm_data {
431 int temp_interval_chg;
432 int temp_interval_nochg;
433 int main_safety_tmr_h;
434 int usb_safety_tmr_h;
438 bool capacity_scaling;
439 bool chg_unknown_bat;
440 bool enable_overshoot;
441 enum abx500_adc_therm adc_therm;
445 int interval_charging;
446 int interval_not_charging;
448 int gnd_lift_resistance;
449 const struct ab8500_maxim_parameters *maxi;
450 const struct ab8500_bm_capacity_levels *cap_levels;
451 const struct ab8500_bm_charger_parameters *chg_params;
452 const struct ab8500_fg_parameters *fg_params;
459 #ifdef CONFIG_AB8500_BM
460 extern struct abx500_bm_data ab8500_bm_data;
462 void ab8500_charger_usb_state_changed(u8 bm_usb_state, u16 mA);
463 struct ab8500_btemp *ab8500_btemp_get(void);
464 int ab8500_btemp_get_batctrl_temp(struct ab8500_btemp *btemp);
465 int ab8500_btemp_get_temp(struct ab8500_btemp *btemp);
466 struct ab8500_fg *ab8500_fg_get(void);
467 int ab8500_fg_inst_curr_blocking(struct ab8500_fg *dev);
468 int ab8500_fg_inst_curr_start(struct ab8500_fg *di);
469 int ab8500_fg_inst_curr_finalize(struct ab8500_fg *di, int *res);
470 int ab8500_fg_inst_curr_started(struct ab8500_fg *di);
471 int ab8500_fg_inst_curr_done(struct ab8500_fg *di);
474 static struct abx500_bm_data ab8500_bm_data;
476 #endif /* _AB8500_BM_H */