1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
2 | |
3 | #ifndef _AB8500_CHARGER_H_ |
4 | #define _AB8500_CHARGER_H_ |
5 | |
6 | #include <linux/kernel.h> |
7 | |
8 | /* |
9 | * System control 2 register offsets. |
10 | * bank = 0x02 |
11 | */ |
12 | #define AB8500_MAIN_WDOG_CTRL_REG 0x01 |
13 | #define AB8500_LOW_BAT_REG 0x03 |
14 | #define AB8500_BATT_OK_REG 0x04 |
15 | /* |
16 | * USB/ULPI register offsets |
17 | * Bank : 0x5 |
18 | */ |
19 | #define AB8500_USB_LINE_STAT_REG 0x80 |
20 | #define AB8500_USB_LINE_CTRL2_REG 0x82 |
21 | #define AB8500_USB_LINK1_STAT_REG 0x94 |
22 | |
23 | /* |
24 | * Charger / status register offfsets |
25 | * Bank : 0x0B |
26 | */ |
27 | #define AB8500_CH_STATUS1_REG 0x00 |
28 | #define AB8500_CH_STATUS2_REG 0x01 |
29 | #define AB8500_CH_USBCH_STAT1_REG 0x02 |
30 | #define AB8500_CH_USBCH_STAT2_REG 0x03 |
31 | #define AB8540_CH_USBCH_STAT3_REG 0x04 |
32 | #define AB8500_CH_STAT_REG 0x05 |
33 | |
34 | /* |
35 | * Charger / control register offfsets |
36 | * Bank : 0x0B |
37 | */ |
38 | #define AB8500_CH_VOLT_LVL_REG 0x40 |
39 | #define AB8500_CH_VOLT_LVL_MAX_REG 0x41 /*Only in Cut2.0*/ |
40 | #define AB8500_CH_OPT_CRNTLVL_REG 0x42 |
41 | #define AB8500_CH_OPT_CRNTLVL_MAX_REG 0x43 /*Only in Cut2.0*/ |
42 | #define AB8500_CH_WD_TIMER_REG 0x50 |
43 | #define AB8500_CHARG_WD_CTRL 0x51 |
44 | #define AB8500_BTEMP_HIGH_TH 0x52 |
45 | #define AB8500_LED_INDICATOR_PWM_CTRL 0x53 |
46 | #define AB8500_LED_INDICATOR_PWM_DUTY 0x54 |
47 | #define AB8500_BATT_OVV 0x55 |
48 | #define AB8500_CHARGER_CTRL 0x56 |
49 | #define AB8500_BAT_CTRL_CURRENT_SOURCE 0x60 /*Only in Cut2.0*/ |
50 | |
51 | /* |
52 | * Charger / main control register offsets |
53 | * Bank : 0x0B |
54 | */ |
55 | #define AB8500_MCH_CTRL1 0x80 |
56 | #define AB8500_MCH_CTRL2 0x81 |
57 | #define AB8500_MCH_IPT_CURLVL_REG 0x82 |
58 | #define AB8500_CH_WD_REG 0x83 |
59 | |
60 | /* |
61 | * Charger / USB control register offsets |
62 | * Bank : 0x0B |
63 | */ |
64 | #define AB8500_USBCH_CTRL1_REG 0xC0 |
65 | #define AB8500_USBCH_CTRL2_REG 0xC1 |
66 | #define AB8500_USBCH_IPT_CRNTLVL_REG 0xC2 |
67 | #define AB8540_USB_PP_MODE_REG 0xC5 |
68 | #define AB8540_USB_PP_CHR_REG 0xC6 |
69 | |
70 | /* |
71 | * Gas Gauge register offsets |
72 | * Bank : 0x0C |
73 | */ |
74 | #define AB8500_GASG_CC_CTRL_REG 0x00 |
75 | #define AB8500_GASG_CC_ACCU1_REG 0x01 |
76 | #define AB8500_GASG_CC_ACCU2_REG 0x02 |
77 | #define AB8500_GASG_CC_ACCU3_REG 0x03 |
78 | #define AB8500_GASG_CC_ACCU4_REG 0x04 |
79 | #define AB8500_GASG_CC_SMPL_CNTRL_REG 0x05 |
80 | #define AB8500_GASG_CC_SMPL_CNTRH_REG 0x06 |
81 | #define AB8500_GASG_CC_SMPL_CNVL_REG 0x07 |
82 | #define AB8500_GASG_CC_SMPL_CNVH_REG 0x08 |
83 | #define AB8500_GASG_CC_CNTR_AVGOFF_REG 0x09 |
84 | #define AB8500_GASG_CC_OFFSET_REG 0x0A |
85 | #define AB8500_GASG_CC_NCOV_ACCU 0x10 |
86 | #define AB8500_GASG_CC_NCOV_ACCU_CTRL 0x11 |
87 | #define AB8500_GASG_CC_NCOV_ACCU_LOW 0x12 |
88 | #define AB8500_GASG_CC_NCOV_ACCU_MED 0x13 |
89 | #define AB8500_GASG_CC_NCOV_ACCU_HIGH 0x14 |
90 | |
91 | /* |
92 | * Interrupt register offsets |
93 | * Bank : 0x0E |
94 | */ |
95 | #define AB8500_IT_SOURCE2_REG 0x01 |
96 | #define AB8500_IT_SOURCE21_REG 0x14 |
97 | |
98 | /* |
99 | * RTC register offsets |
100 | * Bank: 0x0F |
101 | */ |
102 | #define AB8500_RTC_BACKUP_CHG_REG 0x0C |
103 | #define AB8500_RTC_CC_CONF_REG 0x01 |
104 | #define AB8500_RTC_CTRL_REG 0x0B |
105 | #define AB8500_RTC_CTRL1_REG 0x11 |
106 | |
107 | /* |
108 | * OTP register offsets |
109 | * Bank : 0x15 |
110 | */ |
111 | #define AB8500_OTP_CONF_15 0x0E |
112 | |
113 | /* GPADC constants from AB8500 spec, UM0836 */ |
114 | #define ADC_RESOLUTION 1024 |
115 | #define ADC_CH_MAIN_MIN 0 |
116 | #define ADC_CH_MAIN_MAX 20030 |
117 | #define ADC_CH_VBUS_MIN 0 |
118 | #define ADC_CH_VBUS_MAX 20030 |
119 | #define ADC_CH_VBAT_MIN 2300 |
120 | #define ADC_CH_VBAT_MAX 4800 |
121 | #define ADC_CH_BKBAT_MIN 0 |
122 | #define ADC_CH_BKBAT_MAX 3200 |
123 | |
124 | /* Main charge i/p current */ |
125 | #define MAIN_CH_IP_CUR_0P9A 0x80 |
126 | #define MAIN_CH_IP_CUR_1P0A 0x90 |
127 | #define MAIN_CH_IP_CUR_1P1A 0xA0 |
128 | #define MAIN_CH_IP_CUR_1P2A 0xB0 |
129 | #define MAIN_CH_IP_CUR_1P3A 0xC0 |
130 | #define MAIN_CH_IP_CUR_1P4A 0xD0 |
131 | #define MAIN_CH_IP_CUR_1P5A 0xE0 |
132 | |
133 | /* ChVoltLevel */ |
134 | #define CH_VOL_LVL_3P5 0x00 |
135 | #define CH_VOL_LVL_4P0 0x14 |
136 | #define CH_VOL_LVL_4P05 0x16 |
137 | #define CH_VOL_LVL_4P1 0x1B |
138 | #define CH_VOL_LVL_4P15 0x20 |
139 | #define CH_VOL_LVL_4P2 0x25 |
140 | #define CH_VOL_LVL_4P6 0x4D |
141 | |
142 | /* ChOutputCurrentLevel */ |
143 | #define CH_OP_CUR_LVL_0P1 0x00 |
144 | #define CH_OP_CUR_LVL_0P2 0x01 |
145 | #define CH_OP_CUR_LVL_0P3 0x02 |
146 | #define CH_OP_CUR_LVL_0P4 0x03 |
147 | #define CH_OP_CUR_LVL_0P5 0x04 |
148 | #define CH_OP_CUR_LVL_0P6 0x05 |
149 | #define CH_OP_CUR_LVL_0P7 0x06 |
150 | #define CH_OP_CUR_LVL_0P8 0x07 |
151 | #define CH_OP_CUR_LVL_0P9 0x08 |
152 | #define CH_OP_CUR_LVL_1P4 0x0D |
153 | #define CH_OP_CUR_LVL_1P5 0x0E |
154 | #define CH_OP_CUR_LVL_1P6 0x0F |
155 | #define CH_OP_CUR_LVL_2P 0x3F |
156 | |
157 | /* BTEMP High thermal limits */ |
158 | #define BTEMP_HIGH_TH_57_0 0x00 |
159 | #define BTEMP_HIGH_TH_52 0x01 |
160 | #define BTEMP_HIGH_TH_57_1 0x02 |
161 | #define BTEMP_HIGH_TH_62 0x03 |
162 | |
163 | #define LOW_BAT_3P1V 0x20 |
164 | #define LOW_BAT_2P3V 0x00 |
165 | #define LOW_BAT_RESET 0x01 |
166 | #define LOW_BAT_ENABLE 0x01 |
167 | |
168 | /* Backup battery constants */ |
169 | #define BUP_ICH_SEL_50UA 0x00 |
170 | #define BUP_ICH_SEL_150UA 0x04 |
171 | #define BUP_ICH_SEL_300UA 0x08 |
172 | #define BUP_ICH_SEL_700UA 0x0C |
173 | |
174 | enum bup_vch_sel { |
175 | BUP_VCH_SEL_2P5V, |
176 | BUP_VCH_SEL_2P6V, |
177 | BUP_VCH_SEL_2P8V, |
178 | BUP_VCH_SEL_3P1V, |
179 | /* |
180 | * Note that the following 5 values 2.7v, 2.9v, 3.0v, 3.2v, 3.3v |
181 | * are only available on ab8540. You can't choose these 5 |
182 | * voltage on ab8500/ab8505/ab9540. |
183 | */ |
184 | BUP_VCH_SEL_2P7V, |
185 | BUP_VCH_SEL_2P9V, |
186 | BUP_VCH_SEL_3P0V, |
187 | BUP_VCH_SEL_3P2V, |
188 | BUP_VCH_SEL_3P3V, |
189 | }; |
190 | |
191 | #define BUP_VCH_RANGE 0x02 |
192 | #define VBUP33_VRTCN 0x01 |
193 | |
194 | /* Battery OVV constants */ |
195 | #define BATT_OVV_ENA 0x02 |
196 | #define BATT_OVV_TH_3P7 0x00 |
197 | #define BATT_OVV_TH_4P75 0x01 |
198 | |
199 | /* A value to indicate over voltage (microvolts) */ |
200 | #define BATT_OVV_VALUE 4750000 |
201 | |
202 | /* VBUS OVV constants */ |
203 | #define VBUS_OVV_SELECT_MASK 0x78 |
204 | #define VBUS_OVV_SELECT_5P6V 0x00 |
205 | #define VBUS_OVV_SELECT_5P7V 0x08 |
206 | #define VBUS_OVV_SELECT_5P8V 0x10 |
207 | #define VBUS_OVV_SELECT_5P9V 0x18 |
208 | #define VBUS_OVV_SELECT_6P0V 0x20 |
209 | #define VBUS_OVV_SELECT_6P1V 0x28 |
210 | #define VBUS_OVV_SELECT_6P2V 0x30 |
211 | #define VBUS_OVV_SELECT_6P3V 0x38 |
212 | |
213 | #define VBUS_AUTO_IN_CURR_LIM_ENA 0x04 |
214 | |
215 | /* Fuel Gauge constants */ |
216 | #define RESET_ACCU 0x02 |
217 | #define READ_REQ 0x01 |
218 | #define CC_DEEP_SLEEP_ENA 0x02 |
219 | #define CC_PWR_UP_ENA 0x01 |
220 | #define CC_SAMPLES_40 0x28 |
221 | #define RD_NCONV_ACCU_REQ 0x01 |
222 | #define CC_CALIB 0x08 |
223 | #define CC_INTAVGOFFSET_ENA 0x10 |
224 | #define CC_MUXOFFSET 0x80 |
225 | #define CC_INT_CAL_N_AVG_MASK 0x60 |
226 | #define CC_INT_CAL_SAMPLES_16 0x40 |
227 | #define CC_INT_CAL_SAMPLES_8 0x20 |
228 | #define CC_INT_CAL_SAMPLES_4 0x00 |
229 | |
230 | /* RTC constants */ |
231 | #define RTC_BUP_CH_ENA 0x10 |
232 | |
233 | /* BatCtrl Current Source Constants */ |
234 | #define BAT_CTRL_7U_ENA 0x01 |
235 | #define BAT_CTRL_20U_ENA 0x02 |
236 | #define BAT_CTRL_18U_ENA 0x01 |
237 | #define BAT_CTRL_16U_ENA 0x02 |
238 | #define BAT_CTRL_CMP_ENA 0x04 |
239 | #define FORCE_BAT_CTRL_CMP_HIGH 0x08 |
240 | #define BAT_CTRL_PULL_UP_ENA 0x10 |
241 | |
242 | /* Battery type */ |
243 | #define BATTERY_UNKNOWN 00 |
244 | |
245 | /* Registers for pcut feature in ab8505 and ab9540 */ |
246 | #define AB8505_RTC_PCUT_CTL_STATUS_REG 0x12 |
247 | #define AB8505_RTC_PCUT_TIME_REG 0x13 |
248 | #define AB8505_RTC_PCUT_MAX_TIME_REG 0x14 |
249 | #define AB8505_RTC_PCUT_FLAG_TIME_REG 0x15 |
250 | #define AB8505_RTC_PCUT_RESTART_REG 0x16 |
251 | #define AB8505_RTC_PCUT_DEBOUNCE_REG 0x17 |
252 | |
253 | /* USB Power Path constants for ab8540 */ |
254 | #define BUS_VSYS_VOL_SELECT_MASK 0x06 |
255 | #define BUS_VSYS_VOL_SELECT_3P6V 0x00 |
256 | #define BUS_VSYS_VOL_SELECT_3P325V 0x02 |
257 | #define BUS_VSYS_VOL_SELECT_3P9V 0x04 |
258 | #define BUS_VSYS_VOL_SELECT_4P3V 0x06 |
259 | #define BUS_POWER_PATH_MODE_ENA 0x01 |
260 | #define BUS_PP_PRECHG_CURRENT_MASK 0x0E |
261 | #define BUS_POWER_PATH_PRECHG_ENA 0x01 |
262 | |
263 | /* Forward declaration */ |
264 | struct ab8500_fg; |
265 | |
266 | /** |
267 | * struct ab8500_fg_parameters - Fuel gauge algorithm parameters, in seconds |
268 | * if not specified |
269 | * @recovery_sleep_timer: Time between measurements while recovering |
270 | * @recovery_total_time: Total recovery time |
271 | * @init_timer: Measurement interval during startup |
272 | * @init_discard_time: Time we discard voltage measurement at startup |
273 | * @init_total_time: Total init time during startup |
274 | * @high_curr_time: Time current has to be high to go to recovery |
275 | * @accu_charging: FG accumulation time while charging |
276 | * @accu_high_curr_ua: FG accumulation time in high current mode |
277 | * @high_curr_threshold_ua: High current threshold, in uA |
278 | * @lowbat_threshold_uv: Low battery threshold, in uV |
279 | * @battok_falling_th_sel0 Threshold in mV for battOk signal sel0 |
280 | * Resolution in 50 mV step. |
281 | * @battok_raising_th_sel1 Threshold in mV for battOk signal sel1 |
282 | * Resolution in 50 mV step. |
283 | * @user_cap_limit Capacity reported from user must be within this |
284 | * limit to be considered as sane, in percentage |
285 | * points. |
286 | * @maint_thres This is the threshold where we stop reporting |
287 | * battery full while in maintenance, in per cent |
288 | * @pcut_enable: Enable power cut feature in ab8505 |
289 | * @pcut_max_time: Max time threshold |
290 | * @pcut_flag_time: Flagtime threshold |
291 | * @pcut_max_restart: Max number of restarts |
292 | * @pcut_debounce_time: Sets battery debounce time |
293 | */ |
294 | struct ab8500_fg_parameters { |
295 | int recovery_sleep_timer; |
296 | int recovery_total_time; |
297 | int init_timer; |
298 | int init_discard_time; |
299 | int init_total_time; |
300 | int high_curr_time; |
301 | int accu_charging; |
302 | int accu_high_curr; |
303 | int high_curr_threshold_ua; |
304 | int lowbat_threshold_uv; |
305 | int battok_falling_th_sel0; |
306 | int battok_raising_th_sel1; |
307 | int user_cap_limit; |
308 | int maint_thres; |
309 | bool pcut_enable; |
310 | u8 pcut_max_time; |
311 | u8 pcut_flag_time; |
312 | u8 pcut_max_restart; |
313 | u8 pcut_debounce_time; |
314 | }; |
315 | |
316 | /** |
317 | * struct ab8500_charger_maximization - struct used by the board config. |
318 | * @use_maxi: Enable maximization for this battery type |
319 | * @maxi_chg_curr_ua: Maximum charger current allowed in microampere |
320 | * @maxi_wait_cycles: cycles to wait before setting charger current |
321 | * @charger_curr_step_ua: delta between two charger current settings (uA) |
322 | */ |
323 | struct ab8500_maxim_parameters { |
324 | bool ena_maxi; |
325 | int chg_curr_ua; |
326 | int wait_cycles; |
327 | int charger_curr_step_ua; |
328 | }; |
329 | |
330 | /** |
331 | * struct ab8500_bm_capacity_levels - ab8500 capacity level data |
332 | * @critical: critical capacity level in percent |
333 | * @low: low capacity level in percent |
334 | * @normal: normal capacity level in percent |
335 | * @high: high capacity level in percent |
336 | * @full: full capacity level in percent |
337 | */ |
338 | struct ab8500_bm_capacity_levels { |
339 | int critical; |
340 | int low; |
341 | int normal; |
342 | int high; |
343 | int full; |
344 | }; |
345 | |
346 | /** |
347 | * struct ab8500_bm_charger_parameters - Charger specific parameters |
348 | * @usb_volt_max_uv: maximum allowed USB charger voltage in uV |
349 | * @usb_curr_max_ua: maximum allowed USB charger current in uA |
350 | * @ac_volt_max_uv: maximum allowed AC charger voltage in uV |
351 | * @ac_curr_max_ua: maximum allowed AC charger current in uA |
352 | */ |
353 | struct ab8500_bm_charger_parameters { |
354 | int usb_volt_max_uv; |
355 | int usb_curr_max_ua; |
356 | int ac_volt_max_uv; |
357 | int ac_curr_max_ua; |
358 | }; |
359 | |
360 | /** |
361 | * struct ab8500_bm_data - ab8500 battery management data |
362 | * @bi battery info from device tree |
363 | * @temp_now present battery temperature |
364 | * @temp_interval_chg temperature measurement interval in s when charging |
365 | * @temp_interval_nochg temperature measurement interval in s when not charging |
366 | * @main_safety_tmr_h safety timer for main charger |
367 | * @usb_safety_tmr_h safety timer for usb charger |
368 | * @bkup_bat_v voltage which we charge the backup battery with |
369 | * @bkup_bat_i current which we charge the backup battery with |
370 | * @capacity_scaling indicates whether capacity scaling is to be used |
371 | * @chg_unknown_bat flag to enable charging of unknown batteries |
372 | * @enable_overshoot flag to enable VBAT overshoot control |
373 | * @auto_trig flag to enable auto adc trigger |
374 | * @fg_res resistance of FG resistor in 0.1mOhm |
375 | * @interval_charging charge alg cycle period time when charging (sec) |
376 | * @interval_not_charging charge alg cycle period time when not charging (sec) |
377 | * @temp_hysteresis temperature hysteresis |
378 | * @maxi maximization parameters |
379 | * @cap_levels capacity in percent for the different capacity levels |
380 | * @chg_params charger parameters |
381 | * @fg_params fuel gauge parameters |
382 | */ |
383 | struct ab8500_bm_data { |
384 | struct power_supply_battery_info *bi; |
385 | int temp_now; |
386 | int temp_interval_chg; |
387 | int temp_interval_nochg; |
388 | int main_safety_tmr_h; |
389 | int usb_safety_tmr_h; |
390 | int bkup_bat_v; |
391 | int bkup_bat_i; |
392 | bool capacity_scaling; |
393 | bool chg_unknown_bat; |
394 | bool enable_overshoot; |
395 | bool auto_trig; |
396 | int fg_res; |
397 | int interval_charging; |
398 | int interval_not_charging; |
399 | int temp_hysteresis; |
400 | const struct ab8500_maxim_parameters *maxi; |
401 | const struct ab8500_bm_capacity_levels *cap_levels; |
402 | const struct ab8500_bm_charger_parameters *chg_params; |
403 | const struct ab8500_fg_parameters *fg_params; |
404 | }; |
405 | |
406 | /* Forward declaration */ |
407 | struct ab8500_fg; |
408 | |
409 | extern struct ab8500_bm_data ab8500_bm_data; |
410 | |
411 | void ab8500_charger_usb_state_changed(u8 bm_usb_state, u16 mA); |
412 | struct ab8500_fg *ab8500_fg_get(void); |
413 | int ab8500_fg_inst_curr_blocking(struct ab8500_fg *dev); |
414 | int ab8500_fg_inst_curr_start(struct ab8500_fg *di); |
415 | int ab8500_fg_inst_curr_finalize(struct ab8500_fg *di, int *res); |
416 | int ab8500_fg_inst_curr_started(struct ab8500_fg *di); |
417 | int ab8500_fg_inst_curr_done(struct ab8500_fg *di); |
418 | int ab8500_bm_of_probe(struct power_supply *psy, |
419 | struct ab8500_bm_data *bm); |
420 | void ab8500_bm_of_remove(struct power_supply *psy, |
421 | struct ab8500_bm_data *bm); |
422 | |
423 | extern struct platform_driver ab8500_fg_driver; |
424 | extern struct platform_driver ab8500_btemp_driver; |
425 | extern struct platform_driver ab8500_chargalg_driver; |
426 | |
427 | #endif /* _AB8500_CHARGER_H_ */ |
428 | |