2 * Copyright (C) 2007-2009 ST-Ericsson AB
3 * License terms: GNU General Public License (GPL) version 2
4 * AB3100 core access functions
5 * Author: Linus Walleij <linus.walleij@stericsson.com>
7 * ABX500 core access functions.
8 * The abx500 interface is used for the Analog Baseband chip
9 * ab3100, ab5500, and ab8500.
11 * Author: Mattias Wallin <mattias.wallin@stericsson.com>
12 * Author: Mattias Nilsson <mattias.i.nilsson@stericsson.com>
13 * Author: Bengt Jonsson <bengt.g.jonsson@stericsson.com>
14 * Author: Rickard Andersson <rickard.andersson@stericsson.com>
17 #include <linux/regulator/machine.h>
24 #define AB3100_P1A 0xc0
25 #define AB3100_P1B 0xc1
26 #define AB3100_P1C 0xc2
27 #define AB3100_P1D 0xc3
28 #define AB3100_P1E 0xc4
29 #define AB3100_P1F 0xc5
30 #define AB3100_P1G 0xc6
31 #define AB3100_R2A 0xc7
32 #define AB3100_R2B 0xc8
33 #define AB5500_1_0 0x20
34 #define AB5500_1_1 0x21
35 #define AB5500_2_0 0x24
38 * AB3100, EVENTA1, A2 and A3 event register flags
39 * these are catenated into a single 32-bit flag in the code
40 * for event notification broadcasts.
42 #define AB3100_EVENTA1_ONSWA (0x01<<16)
43 #define AB3100_EVENTA1_ONSWB (0x02<<16)
44 #define AB3100_EVENTA1_ONSWC (0x04<<16)
45 #define AB3100_EVENTA1_DCIO (0x08<<16)
46 #define AB3100_EVENTA1_OVER_TEMP (0x10<<16)
47 #define AB3100_EVENTA1_SIM_OFF (0x20<<16)
48 #define AB3100_EVENTA1_VBUS (0x40<<16)
49 #define AB3100_EVENTA1_VSET_USB (0x80<<16)
51 #define AB3100_EVENTA2_READY_TX (0x01<<8)
52 #define AB3100_EVENTA2_READY_RX (0x02<<8)
53 #define AB3100_EVENTA2_OVERRUN_ERROR (0x04<<8)
54 #define AB3100_EVENTA2_FRAMING_ERROR (0x08<<8)
55 #define AB3100_EVENTA2_CHARG_OVERCURRENT (0x10<<8)
56 #define AB3100_EVENTA2_MIDR (0x20<<8)
57 #define AB3100_EVENTA2_BATTERY_REM (0x40<<8)
58 #define AB3100_EVENTA2_ALARM (0x80<<8)
60 #define AB3100_EVENTA3_ADC_TRIG5 (0x01)
61 #define AB3100_EVENTA3_ADC_TRIG4 (0x02)
62 #define AB3100_EVENTA3_ADC_TRIG3 (0x04)
63 #define AB3100_EVENTA3_ADC_TRIG2 (0x08)
64 #define AB3100_EVENTA3_ADC_TRIGVBAT (0x10)
65 #define AB3100_EVENTA3_ADC_TRIGVTX (0x20)
66 #define AB3100_EVENTA3_ADC_TRIG1 (0x40)
67 #define AB3100_EVENTA3_ADC_TRIG0 (0x80)
69 /* AB3100, STR register flags */
70 #define AB3100_STR_ONSWA (0x01)
71 #define AB3100_STR_ONSWB (0x02)
72 #define AB3100_STR_ONSWC (0x04)
73 #define AB3100_STR_DCIO (0x08)
74 #define AB3100_STR_BOOT_MODE (0x10)
75 #define AB3100_STR_SIM_OFF (0x20)
76 #define AB3100_STR_BATT_REMOVAL (0x40)
77 #define AB3100_STR_VBUS (0x80)
80 * AB3100 contains 8 regulators, one external regulator controller
81 * and a buck converter, further the LDO E and buck converter can
82 * have separate settings if they are in sleep mode, this is
83 * modeled as a separate regulator.
85 #define AB3100_NUM_REGULATORS 10
89 * @access_mutex: lock out concurrent accesses to the AB3100 registers
90 * @dev: pointer to the containing device
91 * @i2c_client: I2C client for this chip
92 * @testreg_client: secondary client for test registers
93 * @chip_name: name of this chip variant
94 * @chip_id: 8 bit chip ID for this chip variant
95 * @event_subscribers: event subscribers are listed here
96 * @startup_events: a copy of the first reading of the event registers
97 * @startup_events_read: whether the first events have been read
99 * This struct is PRIVATE and devices using it should NOT
100 * access ANY fields. It is used as a token for calling the
104 struct mutex access_mutex;
106 struct i2c_client *i2c_client;
107 struct i2c_client *testreg_client;
110 struct blocking_notifier_head event_subscribers;
111 u8 startup_events[3];
112 bool startup_events_read;
116 * struct ab3100_platform_data
117 * Data supplied to initialize board connections to the AB3100
118 * @reg_constraints: regulator constraints for target board
119 * the order of these constraints are: LDO A, C, D, E,
120 * F, G, H, K, EXT and BUCK.
121 * @reg_initvals: initial values for the regulator registers
122 * plus two sleep settings for LDO E and the BUCK converter.
123 * exactly AB3100_NUM_REGULATORS+2 values must be sent in.
124 * Order: LDO A, C, E, E sleep, F, G, H, K, EXT, BUCK,
125 * BUCK sleep, LDO D. (LDO D need to be initialized last.)
126 * @external_voltage: voltage level of the external regulator.
128 struct ab3100_platform_data {
129 struct regulator_init_data reg_constraints[AB3100_NUM_REGULATORS];
130 u8 reg_initvals[AB3100_NUM_REGULATORS+2];
131 int external_voltage;
134 int ab3100_event_register(struct ab3100 *ab3100,
135 struct notifier_block *nb);
136 int ab3100_event_unregister(struct ab3100 *ab3100,
137 struct notifier_block *nb);
140 * struct abx500_init_setting
141 * Initial value of the registers for driver to use during setup.
143 struct abx500_init_settings {
149 /* Battery driver related data */
151 * ADC for the battery thermistor.
152 * When using the ABx500_ADC_THERM_BATCTRL the battery ID resistor is combined
153 * with a NTC resistor to both identify the battery and to measure its
154 * temperature. Different phone manufactures uses different techniques to both
155 * identify the battery and to read its temperature.
157 enum abx500_adc_therm {
158 ABx500_ADC_THERM_BATCTRL,
159 ABx500_ADC_THERM_BATTEMP,
163 * struct abx500_res_to_temp - defines one point in a temp to res curve. To
164 * be used in battery packs that combines the identification resistor with a
166 * @temp: battery pack temperature in Celcius
167 * @resist: NTC resistor net total resistance
169 struct abx500_res_to_temp {
175 * struct abx500_v_to_cap - Table for translating voltage to capacity
176 * @voltage: Voltage in mV
177 * @capacity: Capacity in percent
179 struct abx500_v_to_cap {
184 /* Forward declaration */
188 * struct abx500_fg_parameters - Fuel gauge algorithm parameters, in seconds
190 * @recovery_sleep_timer: Time between measurements while recovering
191 * @recovery_total_time: Total recovery time
192 * @init_timer: Measurement interval during startup
193 * @init_discard_time: Time we discard voltage measurement at startup
194 * @init_total_time: Total init time during startup
195 * @high_curr_time: Time current has to be high to go to recovery
196 * @accu_charging: FG accumulation time while charging
197 * @accu_high_curr: FG accumulation time in high current mode
198 * @high_curr_threshold: High current threshold, in mA
199 * @lowbat_threshold: Low battery threshold, in mV
200 * @overbat_threshold: Over battery threshold, in mV
201 * @battok_falling_th_sel0 Threshold in mV for battOk signal sel0
202 * Resolution in 50 mV step.
203 * @battok_raising_th_sel1 Threshold in mV for battOk signal sel1
204 * Resolution in 50 mV step.
205 * @user_cap_limit Capacity reported from user must be within this
206 * limit to be considered as sane, in percentage
208 * @maint_thres This is the threshold where we stop reporting
209 * battery full while in maintenance, in per cent
211 struct abx500_fg_parameters {
212 int recovery_sleep_timer;
213 int recovery_total_time;
215 int init_discard_time;
220 int high_curr_threshold;
221 int lowbat_threshold;
222 int overbat_threshold;
223 int battok_falling_th_sel0;
224 int battok_raising_th_sel1;
230 * struct abx500_charger_maximization - struct used by the board config.
231 * @use_maxi: Enable maximization for this battery type
232 * @maxi_chg_curr: Maximum charger current allowed
233 * @maxi_wait_cycles: cycles to wait before setting charger current
234 * @charger_curr_step delta between two charger current settings (mA)
236 struct abx500_maxim_parameters {
240 int charger_curr_step;
244 * struct abx500_battery_type - different batteries supported
245 * @name: battery technology
246 * @resis_high: battery upper resistance limit
247 * @resis_low: battery lower resistance limit
248 * @charge_full_design: Maximum battery capacity in mAh
249 * @nominal_voltage: Nominal voltage of the battery in mV
250 * @termination_vol: max voltage upto which battery can be charged
251 * @termination_curr battery charging termination current in mA
252 * @recharge_vol battery voltage limit that will trigger a new
253 * full charging cycle in the case where maintenan-
254 * -ce charging has been disabled
255 * @normal_cur_lvl: charger current in normal state in mA
256 * @normal_vol_lvl: charger voltage in normal state in mV
257 * @maint_a_cur_lvl: charger current in maintenance A state in mA
258 * @maint_a_vol_lvl: charger voltage in maintenance A state in mV
259 * @maint_a_chg_timer_h: charge time in maintenance A state
260 * @maint_b_cur_lvl: charger current in maintenance B state in mA
261 * @maint_b_vol_lvl: charger voltage in maintenance B state in mV
262 * @maint_b_chg_timer_h: charge time in maintenance B state
263 * @low_high_cur_lvl: charger current in temp low/high state in mA
264 * @low_high_vol_lvl: charger voltage in temp low/high state in mV'
265 * @battery_resistance: battery inner resistance in mOhm.
266 * @n_r_t_tbl_elements: number of elements in r_to_t_tbl
267 * @r_to_t_tbl: table containing resistance to temp points
268 * @n_v_cap_tbl_elements: number of elements in v_to_cap_tbl
269 * @v_to_cap_tbl: Voltage to capacity (in %) table
270 * @n_batres_tbl_elements number of elements in the batres_tbl
271 * @batres_tbl battery internal resistance vs temperature table
273 struct abx500_battery_type {
277 int charge_full_design;
280 int termination_curr;
286 int maint_a_chg_timer_h;
289 int maint_b_chg_timer_h;
290 int low_high_cur_lvl;
291 int low_high_vol_lvl;
292 int battery_resistance;
293 int n_temp_tbl_elements;
294 struct abx500_res_to_temp *r_to_t_tbl;
295 int n_v_cap_tbl_elements;
296 struct abx500_v_to_cap *v_to_cap_tbl;
297 int n_batres_tbl_elements;
298 struct batres_vs_temp *batres_tbl;
302 * struct abx500_bm_capacity_levels - abx500 capacity level data
303 * @critical: critical capacity level in percent
304 * @low: low capacity level in percent
305 * @normal: normal capacity level in percent
306 * @high: high capacity level in percent
307 * @full: full capacity level in percent
309 struct abx500_bm_capacity_levels {
318 * struct abx500_bm_charger_parameters - Charger specific parameters
319 * @usb_volt_max: maximum allowed USB charger voltage in mV
320 * @usb_curr_max: maximum allowed USB charger current in mA
321 * @ac_volt_max: maximum allowed AC charger voltage in mV
322 * @ac_curr_max: maximum allowed AC charger current in mA
324 struct abx500_bm_charger_parameters {
332 * struct abx500_bm_data - abx500 battery management data
333 * @temp_under under this temp, charging is stopped
334 * @temp_low between this temp and temp_under charging is reduced
335 * @temp_high between this temp and temp_over charging is reduced
336 * @temp_over over this temp, charging is stopped
337 * @temp_now present battery temperature
338 * @temp_interval_chg temperature measurement interval in s when charging
339 * @temp_interval_nochg temperature measurement interval in s when not charging
340 * @main_safety_tmr_h safety timer for main charger
341 * @usb_safety_tmr_h safety timer for usb charger
342 * @bkup_bat_v voltage which we charge the backup battery with
343 * @bkup_bat_i current which we charge the backup battery with
344 * @no_maintenance indicates that maintenance charging is disabled
345 * @abx500_adc_therm placement of thermistor, batctrl or battemp adc
346 * @chg_unknown_bat flag to enable charging of unknown batteries
347 * @enable_overshoot flag to enable VBAT overshoot control
348 * @auto_trig flag to enable auto adc trigger
349 * @fg_res resistance of FG resistor in 0.1mOhm
350 * @n_btypes number of elements in array bat_type
351 * @batt_id index of the identified battery in array bat_type
352 * @interval_charging charge alg cycle period time when charging (sec)
353 * @interval_not_charging charge alg cycle period time when not charging (sec)
354 * @temp_hysteresis temperature hysteresis
355 * @gnd_lift_resistance Battery ground to phone ground resistance (mOhm)
356 * @maxi: maximization parameters
357 * @cap_levels capacity in percent for the different capacity levels
358 * @bat_type table of supported battery types
359 * @chg_params charger parameters
360 * @fg_params fuel gauge parameters
362 struct abx500_bm_data {
368 int temp_interval_chg;
369 int temp_interval_nochg;
370 int main_safety_tmr_h;
371 int usb_safety_tmr_h;
375 bool chg_unknown_bat;
376 bool enable_overshoot;
378 enum abx500_adc_therm adc_therm;
382 int interval_charging;
383 int interval_not_charging;
385 int gnd_lift_resistance;
386 const struct abx500_maxim_parameters *maxi;
387 const struct abx500_bm_capacity_levels *cap_levels;
388 const struct abx500_battery_type *bat_type;
389 const struct abx500_bm_charger_parameters *chg_params;
390 const struct abx500_fg_parameters *fg_params;
393 struct abx500_chargalg_platform_data {
395 size_t num_supplicants;
398 struct abx500_charger_platform_data {
400 size_t num_supplicants;
404 struct abx500_btemp_platform_data {
406 size_t num_supplicants;
409 struct abx500_fg_platform_data {
411 size_t num_supplicants;
414 struct abx500_bm_plat_data {
415 struct abx500_bm_data *battery;
416 struct abx500_charger_platform_data *charger;
417 struct abx500_btemp_platform_data *btemp;
418 struct abx500_fg_platform_data *fg;
419 struct abx500_chargalg_platform_data *chargalg;
422 int abx500_set_register_interruptible(struct device *dev, u8 bank, u8 reg,
424 int abx500_get_register_interruptible(struct device *dev, u8 bank, u8 reg,
426 int abx500_get_register_page_interruptible(struct device *dev, u8 bank,
427 u8 first_reg, u8 *regvals, u8 numregs);
428 int abx500_set_register_page_interruptible(struct device *dev, u8 bank,
429 u8 first_reg, u8 *regvals, u8 numregs);
431 * abx500_mask_and_set_register_inerruptible() - Modifies selected bits of a
434 * @dev: The AB sub device.
435 * @bank: The i2c bank number.
436 * @bitmask: The bit mask to use.
437 * @bitvalues: The new bit values.
439 * Updates the value of an AB register:
440 * value -> ((value & ~bitmask) | (bitvalues & bitmask))
442 int abx500_mask_and_set_register_interruptible(struct device *dev, u8 bank,
443 u8 reg, u8 bitmask, u8 bitvalues);
444 int abx500_get_chip_id(struct device *dev);
445 int abx500_event_registers_startup_state_get(struct device *dev, u8 *event);
446 int abx500_startup_irq_enabled(struct device *dev, unsigned int irq);
449 int (*get_chip_id) (struct device *);
450 int (*get_register) (struct device *, u8, u8, u8 *);
451 int (*set_register) (struct device *, u8, u8, u8);
452 int (*get_register_page) (struct device *, u8, u8, u8 *, u8);
453 int (*set_register_page) (struct device *, u8, u8, u8 *, u8);
454 int (*mask_and_set_register) (struct device *, u8, u8, u8, u8);
455 int (*event_registers_startup_state_get) (struct device *, u8 *);
456 int (*startup_irq_enabled) (struct device *, unsigned int);
459 int abx500_register_ops(struct device *core_dev, struct abx500_ops *ops);
460 void abx500_remove_ops(struct device *dev);