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