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_LINK1_STAT_REG 0x94
29 * Charger / status register offfsets
32 #define AB8500_CH_STATUS1_REG 0x00
33 #define AB8500_CH_STATUS2_REG 0x01
34 #define AB8500_CH_USBCH_STAT1_REG 0x02
35 #define AB8500_CH_USBCH_STAT2_REG 0x03
36 #define AB8500_CH_FSM_STAT_REG 0x04
37 #define AB8500_CH_STAT_REG 0x05
40 * Charger / control register offfsets
43 #define AB8500_CH_VOLT_LVL_REG 0x40
44 #define AB8500_CH_VOLT_LVL_MAX_REG 0x41 /*Only in Cut2.0*/
45 #define AB8500_CH_OPT_CRNTLVL_REG 0x42
46 #define AB8500_CH_OPT_CRNTLVL_MAX_REG 0x43 /*Only in Cut2.0*/
47 #define AB8500_CH_WD_TIMER_REG 0x50
48 #define AB8500_CHARG_WD_CTRL 0x51
49 #define AB8500_BTEMP_HIGH_TH 0x52
50 #define AB8500_LED_INDICATOR_PWM_CTRL 0x53
51 #define AB8500_LED_INDICATOR_PWM_DUTY 0x54
52 #define AB8500_BATT_OVV 0x55
53 #define AB8500_CHARGER_CTRL 0x56
54 #define AB8500_BAT_CTRL_CURRENT_SOURCE 0x60 /*Only in Cut2.0*/
57 * Charger / main control register offsets
60 #define AB8500_MCH_CTRL1 0x80
61 #define AB8500_MCH_CTRL2 0x81
62 #define AB8500_MCH_IPT_CURLVL_REG 0x82
63 #define AB8500_CH_WD_REG 0x83
66 * Charger / USB control register offsets
69 #define AB8500_USBCH_CTRL1_REG 0xC0
70 #define AB8500_USBCH_CTRL2_REG 0xC1
71 #define AB8500_USBCH_IPT_CRNTLVL_REG 0xC2
74 * Gas Gauge register offsets
77 #define AB8500_GASG_CC_CTRL_REG 0x00
78 #define AB8500_GASG_CC_ACCU1_REG 0x01
79 #define AB8500_GASG_CC_ACCU2_REG 0x02
80 #define AB8500_GASG_CC_ACCU3_REG 0x03
81 #define AB8500_GASG_CC_ACCU4_REG 0x04
82 #define AB8500_GASG_CC_SMPL_CNTRL_REG 0x05
83 #define AB8500_GASG_CC_SMPL_CNTRH_REG 0x06
84 #define AB8500_GASG_CC_SMPL_CNVL_REG 0x07
85 #define AB8500_GASG_CC_SMPL_CNVH_REG 0x08
86 #define AB8500_GASG_CC_CNTR_AVGOFF_REG 0x09
87 #define AB8500_GASG_CC_OFFSET_REG 0x0A
88 #define AB8500_GASG_CC_NCOV_ACCU 0x10
89 #define AB8500_GASG_CC_NCOV_ACCU_CTRL 0x11
90 #define AB8500_GASG_CC_NCOV_ACCU_LOW 0x12
91 #define AB8500_GASG_CC_NCOV_ACCU_MED 0x13
92 #define AB8500_GASG_CC_NCOV_ACCU_HIGH 0x14
95 * Interrupt register offsets
98 #define AB8500_IT_SOURCE2_REG 0x01
99 #define AB8500_IT_SOURCE21_REG 0x14
102 * RTC register offsets
105 #define AB8500_RTC_BACKUP_CHG_REG 0x0C
106 #define AB8500_RTC_CC_CONF_REG 0x01
107 #define AB8500_RTC_CTRL_REG 0x0B
110 * OTP register offsets
113 #define AB8500_OTP_CONF_15 0x0E
115 /* GPADC constants from AB8500 spec, UM0836 */
116 #define ADC_RESOLUTION 1024
117 #define ADC_CH_MAIN_MIN 0
118 #define ADC_CH_MAIN_MAX 20030
119 #define ADC_CH_VBUS_MIN 0
120 #define ADC_CH_VBUS_MAX 20030
121 #define ADC_CH_VBAT_MIN 2300
122 #define ADC_CH_VBAT_MAX 4800
123 #define ADC_CH_BKBAT_MIN 0
124 #define ADC_CH_BKBAT_MAX 3200
126 /* Main charge i/p current */
127 #define MAIN_CH_IP_CUR_0P9A 0x80
128 #define MAIN_CH_IP_CUR_1P0A 0x90
129 #define MAIN_CH_IP_CUR_1P1A 0xA0
130 #define MAIN_CH_IP_CUR_1P2A 0xB0
131 #define MAIN_CH_IP_CUR_1P3A 0xC0
132 #define MAIN_CH_IP_CUR_1P4A 0xD0
133 #define MAIN_CH_IP_CUR_1P5A 0xE0
136 #define CH_VOL_LVL_3P5 0x00
137 #define CH_VOL_LVL_4P0 0x14
138 #define CH_VOL_LVL_4P05 0x16
139 #define CH_VOL_LVL_4P1 0x1B
140 #define CH_VOL_LVL_4P15 0x20
141 #define CH_VOL_LVL_4P2 0x25
142 #define CH_VOL_LVL_4P6 0x4D
144 /* ChOutputCurrentLevel */
145 #define CH_OP_CUR_LVL_0P1 0x00
146 #define CH_OP_CUR_LVL_0P2 0x01
147 #define CH_OP_CUR_LVL_0P3 0x02
148 #define CH_OP_CUR_LVL_0P4 0x03
149 #define CH_OP_CUR_LVL_0P5 0x04
150 #define CH_OP_CUR_LVL_0P6 0x05
151 #define CH_OP_CUR_LVL_0P7 0x06
152 #define CH_OP_CUR_LVL_0P8 0x07
153 #define CH_OP_CUR_LVL_0P9 0x08
154 #define CH_OP_CUR_LVL_1P4 0x0D
155 #define CH_OP_CUR_LVL_1P5 0x0E
156 #define CH_OP_CUR_LVL_1P6 0x0F
158 /* BTEMP High thermal limits */
159 #define BTEMP_HIGH_TH_57_0 0x00
160 #define BTEMP_HIGH_TH_52 0x01
161 #define BTEMP_HIGH_TH_57_1 0x02
162 #define BTEMP_HIGH_TH_62 0x03
171 #define LOW_BAT_3P1V 0x20
172 #define LOW_BAT_2P3V 0x00
173 #define LOW_BAT_RESET 0x01
174 #define LOW_BAT_ENABLE 0x01
176 /* Backup battery constants */
177 #define BUP_ICH_SEL_50UA 0x00
178 #define BUP_ICH_SEL_150UA 0x04
179 #define BUP_ICH_SEL_300UA 0x08
180 #define BUP_ICH_SEL_700UA 0x0C
182 #define BUP_VCH_SEL_2P5V 0x00
183 #define BUP_VCH_SEL_2P6V 0x01
184 #define BUP_VCH_SEL_2P8V 0x02
185 #define BUP_VCH_SEL_3P1V 0x03
187 /* Battery OVV constants */
188 #define BATT_OVV_ENA 0x02
189 #define BATT_OVV_TH_3P7 0x00
190 #define BATT_OVV_TH_4P75 0x01
192 /* A value to indicate over voltage */
193 #define BATT_OVV_VALUE 4750
195 /* VBUS OVV constants */
196 #define VBUS_OVV_SELECT_MASK 0x78
197 #define VBUS_OVV_SELECT_5P6V 0x00
198 #define VBUS_OVV_SELECT_5P7V 0x08
199 #define VBUS_OVV_SELECT_5P8V 0x10
200 #define VBUS_OVV_SELECT_5P9V 0x18
201 #define VBUS_OVV_SELECT_6P0V 0x20
202 #define VBUS_OVV_SELECT_6P1V 0x28
203 #define VBUS_OVV_SELECT_6P2V 0x30
204 #define VBUS_OVV_SELECT_6P3V 0x38
206 #define VBUS_AUTO_IN_CURR_LIM_ENA 0x04
208 /* Fuel Gauge constants */
209 #define RESET_ACCU 0x02
210 #define READ_REQ 0x01
211 #define CC_DEEP_SLEEP_ENA 0x02
212 #define CC_PWR_UP_ENA 0x01
213 #define CC_SAMPLES_40 0x28
214 #define RD_NCONV_ACCU_REQ 0x01
215 #define CC_CALIB 0x08
216 #define CC_INTAVGOFFSET_ENA 0x10
217 #define CC_MUXOFFSET 0x80
218 #define CC_INT_CAL_N_AVG_MASK 0x60
219 #define CC_INT_CAL_SAMPLES_16 0x40
220 #define CC_INT_CAL_SAMPLES_8 0x20
221 #define CC_INT_CAL_SAMPLES_4 0x00
224 #define RTC_BUP_CH_ENA 0x10
226 /* BatCtrl Current Source Constants */
227 #define BAT_CTRL_7U_ENA 0x01
228 #define BAT_CTRL_20U_ENA 0x02
229 #define BAT_CTRL_18U_ENA 0x01
230 #define BAT_CTRL_16U_ENA 0x02
231 #define BAT_CTRL_CMP_ENA 0x04
232 #define FORCE_BAT_CTRL_CMP_HIGH 0x08
233 #define BAT_CTRL_PULL_UP_ENA 0x10
236 #define BATTERY_UNKNOWN 00
239 * struct res_to_temp - defines one point in a temp to res curve. To
240 * be used in battery packs that combines the identification resistor with a
242 * @temp: battery pack temperature in Celcius
243 * @resist: NTC resistor net total resistance
251 * struct batres_vs_temp - defines one point in a temp vs battery internal
253 * @temp: battery pack temperature in Celcius
254 * @resist: battery internal reistance in mOhm
256 struct batres_vs_temp {
261 /* Forward declaration */
265 * struct ab8500_fg_parameters - Fuel gauge algorithm parameters, in seconds
267 * @recovery_sleep_timer: Time between measurements while recovering
268 * @recovery_total_time: Total recovery time
269 * @init_timer: Measurement interval during startup
270 * @init_discard_time: Time we discard voltage measurement at startup
271 * @init_total_time: Total init time during startup
272 * @high_curr_time: Time current has to be high to go to recovery
273 * @accu_charging: FG accumulation time while charging
274 * @accu_high_curr: FG accumulation time in high current mode
275 * @high_curr_threshold: High current threshold, in mA
276 * @lowbat_threshold: Low battery threshold, in mV
277 * @battok_falling_th_sel0 Threshold in mV for battOk signal sel0
278 * Resolution in 50 mV step.
279 * @battok_raising_th_sel1 Threshold in mV for battOk signal sel1
280 * Resolution in 50 mV step.
281 * @user_cap_limit Capacity reported from user must be within this
282 * limit to be considered as sane, in percentage
284 * @maint_thres This is the threshold where we stop reporting
285 * battery full while in maintenance, in per cent
287 struct ab8500_fg_parameters {
288 int recovery_sleep_timer;
289 int recovery_total_time;
291 int init_discard_time;
296 int high_curr_threshold;
297 int lowbat_threshold;
298 int battok_falling_th_sel0;
299 int battok_raising_th_sel1;
305 * struct ab8500_charger_maximization - struct used by the board config.
306 * @use_maxi: Enable maximization for this battery type
307 * @maxi_chg_curr: Maximum charger current allowed
308 * @maxi_wait_cycles: cycles to wait before setting charger current
309 * @charger_curr_step delta between two charger current settings (mA)
311 struct ab8500_maxim_parameters {
315 int charger_curr_step;
319 * struct ab8500_bm_capacity_levels - ab8500 capacity level data
320 * @critical: critical capacity level in percent
321 * @low: low capacity level in percent
322 * @normal: normal capacity level in percent
323 * @high: high capacity level in percent
324 * @full: full capacity level in percent
326 struct ab8500_bm_capacity_levels {
335 * struct ab8500_bm_charger_parameters - Charger specific parameters
336 * @usb_volt_max: maximum allowed USB charger voltage in mV
337 * @usb_curr_max: maximum allowed USB charger current in mA
338 * @ac_volt_max: maximum allowed AC charger voltage in mV
339 * @ac_curr_max: maximum allowed AC charger current in mA
341 struct ab8500_bm_charger_parameters {
349 * struct ab8500_bm_data - ab8500 battery management data
350 * @temp_under under this temp, charging is stopped
351 * @temp_low between this temp and temp_under charging is reduced
352 * @temp_high between this temp and temp_over charging is reduced
353 * @temp_over over this temp, charging is stopped
354 * @temp_interval_chg temperature measurement interval in s when charging
355 * @temp_interval_nochg temperature measurement interval in s when not charging
356 * @main_safety_tmr_h safety timer for main charger
357 * @usb_safety_tmr_h safety timer for usb charger
358 * @bkup_bat_v voltage which we charge the backup battery with
359 * @bkup_bat_i current which we charge the backup battery with
360 * @no_maintenance indicates that maintenance charging is disabled
361 * @capacity_scaling indicates whether capacity scaling is to be used
362 * @adc_therm placement of thermistor, batctrl or battemp adc
363 * @chg_unknown_bat flag to enable charging of unknown batteries
364 * @enable_overshoot flag to enable VBAT overshoot control
365 * @fg_res resistance of FG resistor in 0.1mOhm
366 * @n_btypes number of elements in array bat_type
367 * @batt_id index of the identified battery in array bat_type
368 * @interval_charging charge alg cycle period time when charging (sec)
369 * @interval_not_charging charge alg cycle period time when not charging (sec)
370 * @temp_hysteresis temperature hysteresis
371 * @gnd_lift_resistance Battery ground to phone ground resistance (mOhm)
372 * @maxi: maximization parameters
373 * @cap_levels capacity in percent for the different capacity levels
374 * @bat_type table of supported battery types
375 * @chg_params charger parameters
376 * @fg_params fuel gauge parameters
378 struct ab8500_bm_data {
383 int temp_interval_chg;
384 int temp_interval_nochg;
385 int main_safety_tmr_h;
386 int usb_safety_tmr_h;
390 bool capacity_scaling;
391 bool chg_unknown_bat;
392 bool enable_overshoot;
393 enum abx500_adc_therm adc_therm;
397 int interval_charging;
398 int interval_not_charging;
400 int gnd_lift_resistance;
401 const struct ab8500_maxim_parameters *maxi;
402 const struct ab8500_bm_capacity_levels *cap_levels;
403 const struct ab8500_bm_charger_parameters *chg_params;
404 const struct ab8500_fg_parameters *fg_params;
411 #ifdef CONFIG_AB8500_BM
412 extern struct abx500_bm_data ab8500_bm_data;
414 void ab8500_fg_reinit(void);
415 void ab8500_charger_usb_state_changed(u8 bm_usb_state, u16 mA);
416 struct ab8500_btemp *ab8500_btemp_get(void);
417 int ab8500_btemp_get_batctrl_temp(struct ab8500_btemp *btemp);
418 struct ab8500_fg *ab8500_fg_get(void);
419 int ab8500_fg_inst_curr_blocking(struct ab8500_fg *dev);
420 int ab8500_fg_inst_curr_start(struct ab8500_fg *di);
421 int ab8500_fg_inst_curr_finalize(struct ab8500_fg *di, int *res);
422 int ab8500_fg_inst_curr_started(struct ab8500_fg *di);
423 int ab8500_fg_inst_curr_done(struct ab8500_fg *di);
426 static struct abx500_bm_data ab8500_bm_data;
428 #endif /* _AB8500_BM_H */