1 /* SPDX-License-Identifier: GPL-2.0-only */ <<
2 /* 1 /*
3 * Copyright (C) 2007-2009 ST-Ericsson AB 2 * Copyright (C) 2007-2009 ST-Ericsson AB
>> 3 * License terms: GNU General Public License (GPL) version 2
4 * 4 *
5 * ABX500 core access functions. 5 * ABX500 core access functions.
6 * The abx500 interface is used for the Analog 6 * The abx500 interface is used for the Analog Baseband chips.
7 * 7 *
8 * Author: Mattias Wallin <mattias.wallin@ster 8 * Author: Mattias Wallin <mattias.wallin@stericsson.com>
9 * Author: Mattias Nilsson <mattias.i.nilsson@ 9 * Author: Mattias Nilsson <mattias.i.nilsson@stericsson.com>
10 * Author: Bengt Jonsson <bengt.g.jonsson@ster 10 * Author: Bengt Jonsson <bengt.g.jonsson@stericsson.com>
11 * Author: Rickard Andersson <rickard.andersso 11 * Author: Rickard Andersson <rickard.andersson@stericsson.com>
12 */ 12 */
13 13
14 #include <linux/regulator/machine.h> 14 #include <linux/regulator/machine.h>
15 15
16 struct device; 16 struct device;
17 17
18 #ifndef MFD_ABX500_H 18 #ifndef MFD_ABX500_H
19 #define MFD_ABX500_H 19 #define MFD_ABX500_H
20 20
21 /** 21 /**
22 * struct abx500_init_setting 22 * struct abx500_init_setting
23 * Initial value of the registers for driver t 23 * Initial value of the registers for driver to use during setup.
24 */ 24 */
25 struct abx500_init_settings { 25 struct abx500_init_settings {
26 u8 bank; 26 u8 bank;
27 u8 reg; 27 u8 reg;
28 u8 setting; 28 u8 setting;
29 }; 29 };
>> 30
>> 31 /* Battery driver related data */
>> 32 /*
>> 33 * ADC for the battery thermistor.
>> 34 * When using the ABx500_ADC_THERM_BATCTRL the battery ID resistor is combined
>> 35 * with a NTC resistor to both identify the battery and to measure its
>> 36 * temperature. Different phone manufactures uses different techniques to both
>> 37 * identify the battery and to read its temperature.
>> 38 */
>> 39 enum abx500_adc_therm {
>> 40 ABx500_ADC_THERM_BATCTRL,
>> 41 ABx500_ADC_THERM_BATTEMP,
>> 42 };
>> 43
>> 44 /**
>> 45 * struct abx500_res_to_temp - defines one point in a temp to res curve. To
>> 46 * be used in battery packs that combines the identification resistor with a
>> 47 * NTC resistor.
>> 48 * @temp: battery pack temperature in Celsius
>> 49 * @resist: NTC resistor net total resistance
>> 50 */
>> 51 struct abx500_res_to_temp {
>> 52 int temp;
>> 53 int resist;
>> 54 };
>> 55
>> 56 /**
>> 57 * struct abx500_v_to_cap - Table for translating voltage to capacity
>> 58 * @voltage: Voltage in mV
>> 59 * @capacity: Capacity in percent
>> 60 */
>> 61 struct abx500_v_to_cap {
>> 62 int voltage;
>> 63 int capacity;
>> 64 };
>> 65
>> 66 /* Forward declaration */
>> 67 struct abx500_fg;
>> 68
>> 69 /**
>> 70 * struct abx500_fg_parameters - Fuel gauge algorithm parameters, in seconds
>> 71 * if not specified
>> 72 * @recovery_sleep_timer: Time between measurements while recovering
>> 73 * @recovery_total_time: Total recovery time
>> 74 * @init_timer: Measurement interval during startup
>> 75 * @init_discard_time: Time we discard voltage measurement at startup
>> 76 * @init_total_time: Total init time during startup
>> 77 * @high_curr_time: Time current has to be high to go to recovery
>> 78 * @accu_charging: FG accumulation time while charging
>> 79 * @accu_high_curr: FG accumulation time in high current mode
>> 80 * @high_curr_threshold: High current threshold, in mA
>> 81 * @lowbat_threshold: Low battery threshold, in mV
>> 82 * @overbat_threshold: Over battery threshold, in mV
>> 83 * @battok_falling_th_sel0 Threshold in mV for battOk signal sel0
>> 84 * Resolution in 50 mV step.
>> 85 * @battok_raising_th_sel1 Threshold in mV for battOk signal sel1
>> 86 * Resolution in 50 mV step.
>> 87 * @user_cap_limit Capacity reported from user must be within this
>> 88 * limit to be considered as sane, in percentage
>> 89 * points.
>> 90 * @maint_thres This is the threshold where we stop reporting
>> 91 * battery full while in maintenance, in per cent
>> 92 * @pcut_enable: Enable power cut feature in ab8505
>> 93 * @pcut_max_time: Max time threshold
>> 94 * @pcut_flag_time: Flagtime threshold
>> 95 * @pcut_max_restart: Max number of restarts
>> 96 * @pcut_debounce_time: Sets battery debounce time
>> 97 */
>> 98 struct abx500_fg_parameters {
>> 99 int recovery_sleep_timer;
>> 100 int recovery_total_time;
>> 101 int init_timer;
>> 102 int init_discard_time;
>> 103 int init_total_time;
>> 104 int high_curr_time;
>> 105 int accu_charging;
>> 106 int accu_high_curr;
>> 107 int high_curr_threshold;
>> 108 int lowbat_threshold;
>> 109 int overbat_threshold;
>> 110 int battok_falling_th_sel0;
>> 111 int battok_raising_th_sel1;
>> 112 int user_cap_limit;
>> 113 int maint_thres;
>> 114 bool pcut_enable;
>> 115 u8 pcut_max_time;
>> 116 u8 pcut_flag_time;
>> 117 u8 pcut_max_restart;
>> 118 u8 pcut_debounce_time;
>> 119 };
>> 120
>> 121 /**
>> 122 * struct abx500_charger_maximization - struct used by the board config.
>> 123 * @use_maxi: Enable maximization for this battery type
>> 124 * @maxi_chg_curr: Maximum charger current allowed
>> 125 * @maxi_wait_cycles: cycles to wait before setting charger current
>> 126 * @charger_curr_step delta between two charger current settings (mA)
>> 127 */
>> 128 struct abx500_maxim_parameters {
>> 129 bool ena_maxi;
>> 130 int chg_curr;
>> 131 int wait_cycles;
>> 132 int charger_curr_step;
>> 133 };
>> 134
>> 135 /**
>> 136 * struct abx500_battery_type - different batteries supported
>> 137 * @name: battery technology
>> 138 * @resis_high: battery upper resistance limit
>> 139 * @resis_low: battery lower resistance limit
>> 140 * @charge_full_design: Maximum battery capacity in mAh
>> 141 * @nominal_voltage: Nominal voltage of the battery in mV
>> 142 * @termination_vol: max voltage upto which battery can be charged
>> 143 * @termination_curr battery charging termination current in mA
>> 144 * @recharge_cap battery capacity limit that will trigger a new
>> 145 * full charging cycle in the case where maintenan-
>> 146 * -ce charging has been disabled
>> 147 * @normal_cur_lvl: charger current in normal state in mA
>> 148 * @normal_vol_lvl: charger voltage in normal state in mV
>> 149 * @maint_a_cur_lvl: charger current in maintenance A state in mA
>> 150 * @maint_a_vol_lvl: charger voltage in maintenance A state in mV
>> 151 * @maint_a_chg_timer_h: charge time in maintenance A state
>> 152 * @maint_b_cur_lvl: charger current in maintenance B state in mA
>> 153 * @maint_b_vol_lvl: charger voltage in maintenance B state in mV
>> 154 * @maint_b_chg_timer_h: charge time in maintenance B state
>> 155 * @low_high_cur_lvl: charger current in temp low/high state in mA
>> 156 * @low_high_vol_lvl: charger voltage in temp low/high state in mV'
>> 157 * @battery_resistance: battery inner resistance in mOhm.
>> 158 * @n_r_t_tbl_elements: number of elements in r_to_t_tbl
>> 159 * @r_to_t_tbl: table containing resistance to temp points
>> 160 * @n_v_cap_tbl_elements: number of elements in v_to_cap_tbl
>> 161 * @v_to_cap_tbl: Voltage to capacity (in %) table
>> 162 * @n_batres_tbl_elements number of elements in the batres_tbl
>> 163 * @batres_tbl battery internal resistance vs temperature table
>> 164 */
>> 165 struct abx500_battery_type {
>> 166 int name;
>> 167 int resis_high;
>> 168 int resis_low;
>> 169 int charge_full_design;
>> 170 int nominal_voltage;
>> 171 int termination_vol;
>> 172 int termination_curr;
>> 173 int recharge_cap;
>> 174 int normal_cur_lvl;
>> 175 int normal_vol_lvl;
>> 176 int maint_a_cur_lvl;
>> 177 int maint_a_vol_lvl;
>> 178 int maint_a_chg_timer_h;
>> 179 int maint_b_cur_lvl;
>> 180 int maint_b_vol_lvl;
>> 181 int maint_b_chg_timer_h;
>> 182 int low_high_cur_lvl;
>> 183 int low_high_vol_lvl;
>> 184 int battery_resistance;
>> 185 int n_temp_tbl_elements;
>> 186 const struct abx500_res_to_temp *r_to_t_tbl;
>> 187 int n_v_cap_tbl_elements;
>> 188 const struct abx500_v_to_cap *v_to_cap_tbl;
>> 189 int n_batres_tbl_elements;
>> 190 const struct batres_vs_temp *batres_tbl;
>> 191 };
>> 192
>> 193 /**
>> 194 * struct abx500_bm_capacity_levels - abx500 capacity level data
>> 195 * @critical: critical capacity level in percent
>> 196 * @low: low capacity level in percent
>> 197 * @normal: normal capacity level in percent
>> 198 * @high: high capacity level in percent
>> 199 * @full: full capacity level in percent
>> 200 */
>> 201 struct abx500_bm_capacity_levels {
>> 202 int critical;
>> 203 int low;
>> 204 int normal;
>> 205 int high;
>> 206 int full;
>> 207 };
>> 208
>> 209 /**
>> 210 * struct abx500_bm_charger_parameters - Charger specific parameters
>> 211 * @usb_volt_max: maximum allowed USB charger voltage in mV
>> 212 * @usb_curr_max: maximum allowed USB charger current in mA
>> 213 * @ac_volt_max: maximum allowed AC charger voltage in mV
>> 214 * @ac_curr_max: maximum allowed AC charger current in mA
>> 215 */
>> 216 struct abx500_bm_charger_parameters {
>> 217 int usb_volt_max;
>> 218 int usb_curr_max;
>> 219 int ac_volt_max;
>> 220 int ac_curr_max;
>> 221 };
>> 222
>> 223 /**
>> 224 * struct abx500_bm_data - abx500 battery management data
>> 225 * @temp_under under this temp, charging is stopped
>> 226 * @temp_low between this temp and temp_under charging is reduced
>> 227 * @temp_high between this temp and temp_over charging is reduced
>> 228 * @temp_over over this temp, charging is stopped
>> 229 * @temp_now present battery temperature
>> 230 * @temp_interval_chg temperature measurement interval in s when charging
>> 231 * @temp_interval_nochg temperature measurement interval in s when not charging
>> 232 * @main_safety_tmr_h safety timer for main charger
>> 233 * @usb_safety_tmr_h safety timer for usb charger
>> 234 * @bkup_bat_v voltage which we charge the backup battery with
>> 235 * @bkup_bat_i current which we charge the backup battery with
>> 236 * @no_maintenance indicates that maintenance charging is disabled
>> 237 * @capacity_scaling indicates whether capacity scaling is to be used
>> 238 * @abx500_adc_therm placement of thermistor, batctrl or battemp adc
>> 239 * @chg_unknown_bat flag to enable charging of unknown batteries
>> 240 * @enable_overshoot flag to enable VBAT overshoot control
>> 241 * @auto_trig flag to enable auto adc trigger
>> 242 * @fg_res resistance of FG resistor in 0.1mOhm
>> 243 * @n_btypes number of elements in array bat_type
>> 244 * @batt_id index of the identified battery in array bat_type
>> 245 * @interval_charging charge alg cycle period time when charging (sec)
>> 246 * @interval_not_charging charge alg cycle period time when not charging (sec)
>> 247 * @temp_hysteresis temperature hysteresis
>> 248 * @gnd_lift_resistance Battery ground to phone ground resistance (mOhm)
>> 249 * @n_chg_out_curr number of elements in array chg_output_curr
>> 250 * @n_chg_in_curr number of elements in array chg_input_curr
>> 251 * @chg_output_curr charger output current level map
>> 252 * @chg_input_curr charger input current level map
>> 253 * @maxi maximization parameters
>> 254 * @cap_levels capacity in percent for the different capacity levels
>> 255 * @bat_type table of supported battery types
>> 256 * @chg_params charger parameters
>> 257 * @fg_params fuel gauge parameters
>> 258 */
>> 259 struct abx500_bm_data {
>> 260 int temp_under;
>> 261 int temp_low;
>> 262 int temp_high;
>> 263 int temp_over;
>> 264 int temp_now;
>> 265 int temp_interval_chg;
>> 266 int temp_interval_nochg;
>> 267 int main_safety_tmr_h;
>> 268 int usb_safety_tmr_h;
>> 269 int bkup_bat_v;
>> 270 int bkup_bat_i;
>> 271 bool autopower_cfg;
>> 272 bool ac_enabled;
>> 273 bool usb_enabled;
>> 274 bool no_maintenance;
>> 275 bool capacity_scaling;
>> 276 bool chg_unknown_bat;
>> 277 bool enable_overshoot;
>> 278 bool auto_trig;
>> 279 enum abx500_adc_therm adc_therm;
>> 280 int fg_res;
>> 281 int n_btypes;
>> 282 int batt_id;
>> 283 int interval_charging;
>> 284 int interval_not_charging;
>> 285 int temp_hysteresis;
>> 286 int gnd_lift_resistance;
>> 287 int n_chg_out_curr;
>> 288 int n_chg_in_curr;
>> 289 int *chg_output_curr;
>> 290 int *chg_input_curr;
>> 291 const struct abx500_maxim_parameters *maxi;
>> 292 const struct abx500_bm_capacity_levels *cap_levels;
>> 293 struct abx500_battery_type *bat_type;
>> 294 const struct abx500_bm_charger_parameters *chg_params;
>> 295 const struct abx500_fg_parameters *fg_params;
>> 296 };
>> 297
>> 298 enum {
>> 299 NTC_EXTERNAL = 0,
>> 300 NTC_INTERNAL,
>> 301 };
>> 302
>> 303 int ab8500_bm_of_probe(struct device *dev,
>> 304 struct device_node *np,
>> 305 struct abx500_bm_data *bm);
30 306
31 int abx500_set_register_interruptible(struct d 307 int abx500_set_register_interruptible(struct device *dev, u8 bank, u8 reg,
32 u8 value); 308 u8 value);
33 int abx500_get_register_interruptible(struct d 309 int abx500_get_register_interruptible(struct device *dev, u8 bank, u8 reg,
34 u8 *value); 310 u8 *value);
35 int abx500_get_register_page_interruptible(str 311 int abx500_get_register_page_interruptible(struct device *dev, u8 bank,
36 u8 first_reg, u8 *regvals, u8 numregs) 312 u8 first_reg, u8 *regvals, u8 numregs);
37 int abx500_set_register_page_interruptible(str 313 int abx500_set_register_page_interruptible(struct device *dev, u8 bank,
38 u8 first_reg, u8 *regvals, u8 numregs) 314 u8 first_reg, u8 *regvals, u8 numregs);
39 /** 315 /**
40 * abx500_mask_and_set_register_inerruptible() 316 * abx500_mask_and_set_register_inerruptible() - Modifies selected bits of a
41 * target register 317 * target register
42 * 318 *
43 * @dev: The AB sub device. 319 * @dev: The AB sub device.
44 * @bank: The i2c bank number. 320 * @bank: The i2c bank number.
45 * @bitmask: The bit mask to use. 321 * @bitmask: The bit mask to use.
46 * @bitvalues: The new bit values. 322 * @bitvalues: The new bit values.
47 * 323 *
48 * Updates the value of an AB register: 324 * Updates the value of an AB register:
49 * value -> ((value & ~bitmask) | (bitvalues & 325 * value -> ((value & ~bitmask) | (bitvalues & bitmask))
50 */ 326 */
51 int abx500_mask_and_set_register_interruptible 327 int abx500_mask_and_set_register_interruptible(struct device *dev, u8 bank,
52 u8 reg, u8 bitmask, u8 bitvalues); 328 u8 reg, u8 bitmask, u8 bitvalues);
53 int abx500_get_chip_id(struct device *dev); 329 int abx500_get_chip_id(struct device *dev);
54 int abx500_event_registers_startup_state_get(s 330 int abx500_event_registers_startup_state_get(struct device *dev, u8 *event);
55 int abx500_startup_irq_enabled(struct device * 331 int abx500_startup_irq_enabled(struct device *dev, unsigned int irq);
56 332
57 struct abx500_ops { 333 struct abx500_ops {
58 int (*get_chip_id) (struct device *); 334 int (*get_chip_id) (struct device *);
59 int (*get_register) (struct device *, 335 int (*get_register) (struct device *, u8, u8, u8 *);
60 int (*set_register) (struct device *, 336 int (*set_register) (struct device *, u8, u8, u8);
61 int (*get_register_page) (struct devic 337 int (*get_register_page) (struct device *, u8, u8, u8 *, u8);
62 int (*set_register_page) (struct devic 338 int (*set_register_page) (struct device *, u8, u8, u8 *, u8);
63 int (*mask_and_set_register) (struct d 339 int (*mask_and_set_register) (struct device *, u8, u8, u8, u8);
64 int (*event_registers_startup_state_ge 340 int (*event_registers_startup_state_get) (struct device *, u8 *);
65 int (*startup_irq_enabled) (struct dev 341 int (*startup_irq_enabled) (struct device *, unsigned int);
66 void (*dump_all_banks) (struct device 342 void (*dump_all_banks) (struct device *);
67 }; 343 };
68 344
69 int abx500_register_ops(struct device *core_de 345 int abx500_register_ops(struct device *core_dev, struct abx500_ops *ops);
70 void abx500_remove_ops(struct device *dev); 346 void abx500_remove_ops(struct device *dev);
71 #endif 347 #endif
72 348
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