Lines Matching defs:charger
3 * Battery charger driver for Dialog Semiconductor DA9030
106 /* charger status */
140 struct da9030_charger *charger = s->private;
142 seq_printf(s, "charger is %s\n", str_on_off(charger->is_on));
143 if (charger->chdet) {
145 charger->mA, charger->mV);
149 charger->adc.vbat_res,
150 da9030_reg_to_mV(charger->adc.vbat_res));
152 charger->adc.vbatmin_res,
153 da9030_reg_to_mV(charger->adc.vbatmin_res));
155 charger->adc.vbatmintxon,
156 da9030_reg_to_mV(charger->adc.vbatmintxon));
158 charger->adc.ichmax_res,
159 da9030_reg_to_mV(charger->adc.ichmax_res));
161 charger->adc.ichmin_res,
162 da9030_reg_to_mA(charger->adc.ichmin_res));
164 charger->adc.ichaverage_res,
165 da9030_reg_to_mA(charger->adc.ichaverage_res));
167 charger->adc.vchmax_res,
168 da9030_reg_to_mA(charger->adc.vchmax_res));
170 charger->adc.vchmin_res,
171 da9030_reg_to_mV(charger->adc.vchmin_res));
178 static struct dentry *da9030_bat_create_debugfs(struct da9030_charger *charger)
180 charger->debug_file = debugfs_create_file("charger", 0666, NULL,
181 charger, &bat_debug_fops);
182 return charger->debug_file;
185 static void da9030_bat_remove_debugfs(struct da9030_charger *charger)
187 debugfs_remove(charger->debug_file);
190 static inline struct dentry *da9030_bat_create_debugfs(struct da9030_charger *charger)
194 static inline void da9030_bat_remove_debugfs(struct da9030_charger *charger)
199 static inline void da9030_read_adc(struct da9030_charger *charger,
202 da903x_reads(charger->master, DA9030_VBAT_RES,
206 static void da9030_charger_update_state(struct da9030_charger *charger)
210 da903x_read(charger->master, DA9030_CHARGE_CONTROL, &val);
211 charger->is_on = (val & DA9030_CHRG_CHARGER_ENABLE) ? 1 : 0;
212 charger->mA = ((val >> 3) & 0xf) * 100;
213 charger->mV = (val & 0x7) * 50 + 4000;
215 da9030_read_adc(charger, &charger->adc);
216 da903x_read(charger->master, DA9030_FAULT_LOG, &charger->fault);
217 charger->chdet = da903x_query_status(charger->master,
221 static void da9030_set_charge(struct da9030_charger *charger, int on)
227 val |= (charger->charge_milliamp / 100) << 3;
228 val |= (charger->charge_millivolt - 4000) / 50;
229 charger->is_on = 1;
232 charger->is_on = 0;
235 da903x_write(charger->master, DA9030_CHARGE_CONTROL, val);
237 power_supply_changed(charger->psy);
240 static void da9030_charger_check_state(struct da9030_charger *charger)
242 da9030_charger_update_state(charger);
245 if (!charger->is_on) {
246 if ((charger->chdet) &&
247 (charger->adc.vbat_res <
248 charger->thresholds.vbat_charge_start)) {
249 da9030_set_charge(charger, 1);
253 if (!charger->chdet) {
254 da9030_set_charge(charger, 0);
258 if (charger->adc.vbat_res >=
259 charger->thresholds.vbat_charge_stop) {
260 da9030_set_charge(charger, 0);
261 da903x_write(charger->master, DA9030_VBATMON,
262 charger->thresholds.vbat_charge_restart);
263 } else if (charger->adc.vbat_res >
264 charger->thresholds.vbat_low) {
268 da903x_write(charger->master, DA9030_VBATMON,
269 charger->thresholds.vbat_low);
271 if (charger->adc.vchmax_res > charger->thresholds.vcharge_max ||
272 charger->adc.vchmin_res < charger->thresholds.vcharge_min ||
274 charger->adc.tbat_res < charger->thresholds.tbat_high ||
275 charger->adc.tbat_res > charger->thresholds.tbat_low) {
276 /* disable charger */
277 da9030_set_charge(charger, 0);
284 struct da9030_charger *charger;
286 charger = container_of(work, struct da9030_charger, work.work);
288 da9030_charger_check_state(charger);
291 schedule_delayed_work(&charger->work, charger->interval);
305 static void da9030_battery_check_status(struct da9030_charger *charger,
308 if (charger->chdet) {
309 if (charger->is_on)
318 static void da9030_battery_check_health(struct da9030_charger *charger,
321 if (charger->fault & DA9030_FAULT_LOG_OVER_TEMP)
323 else if (charger->fault & DA9030_FAULT_LOG_VBAT_OVER)
333 struct da9030_charger *charger = power_supply_get_drvdata(psy);
337 da9030_battery_check_status(charger, val);
340 da9030_battery_check_health(charger, val);
343 val->intval = charger->battery_info->technology;
346 val->intval = charger->battery_info->voltage_max_design;
349 val->intval = charger->battery_info->voltage_min_design;
352 val->intval = da9030_reg_to_mV(charger->adc.vbat_res) * 1000;
356 da9030_reg_to_mA(charger->adc.ichaverage_res) * 1000;
359 val->strval = charger->battery_info->name;
368 static void da9030_battery_vbat_event(struct da9030_charger *charger)
370 da9030_read_adc(charger, &charger->adc);
372 if (charger->is_on)
375 if (charger->adc.vbat_res < charger->thresholds.vbat_low) {
377 da903x_write(charger->master, DA9030_VBATMON,
378 charger->thresholds.vbat_crit);
379 if (charger->battery_low)
380 charger->battery_low();
381 } else if (charger->adc.vbat_res <
382 charger->thresholds.vbat_crit) {
384 if (charger->battery_critical)
385 charger->battery_critical();
392 struct da9030_charger *charger =
397 cancel_delayed_work_sync(&charger->work);
398 schedule_work(&charger->work.work);
401 da9030_battery_vbat_event(charger);
405 da9030_set_charge(charger, 0);
412 static void da9030_battery_convert_thresholds(struct da9030_charger *charger,
415 charger->thresholds.tbat_low = pdata->tbat_low;
416 charger->thresholds.tbat_high = pdata->tbat_high;
417 charger->thresholds.tbat_restart = pdata->tbat_restart;
419 charger->thresholds.vbat_low =
421 charger->thresholds.vbat_crit =
423 charger->thresholds.vbat_charge_start =
425 charger->thresholds.vbat_charge_stop =
427 charger->thresholds.vbat_charge_restart =
430 charger->thresholds.vcharge_min =
432 charger->thresholds.vcharge_max =
436 static void da9030_battery_setup_psy(struct da9030_charger *charger)
438 struct power_supply_desc *psy_desc = &charger->psy_desc;
439 struct power_supply_info *info = charger->battery_info;
450 static int da9030_battery_charger_init(struct da9030_charger *charger)
455 v[0] = v[1] = charger->thresholds.vbat_low;
456 v[2] = charger->thresholds.tbat_high;
457 v[3] = charger->thresholds.tbat_restart;
458 v[4] = charger->thresholds.tbat_low;
460 ret = da903x_writes(charger->master, DA9030_VBATMON, 5, v);
468 ret = da903x_write(charger->master, DA9030_ADC_MAN_CONTROL,
475 return da903x_write(charger->master, DA9030_ADC_AUTO_CONTROL,
484 struct da9030_charger *charger;
497 charger = devm_kzalloc(&pdev->dev, sizeof(*charger), GFP_KERNEL);
498 if (charger == NULL)
501 charger->master = pdev->dev.parent;
505 charger->interval = secs_to_jiffies(pdata->batmon_interval ? : 10);
507 charger->charge_milliamp = pdata->charge_milliamp;
508 charger->charge_millivolt = pdata->charge_millivolt;
509 charger->battery_info = pdata->battery_info;
510 charger->battery_low = pdata->battery_low;
511 charger->battery_critical = pdata->battery_critical;
513 da9030_battery_convert_thresholds(charger, pdata);
515 ret = da9030_battery_charger_init(charger);
519 INIT_DELAYED_WORK(&charger->work, da9030_charging_monitor);
520 schedule_delayed_work(&charger->work, charger->interval);
522 charger->nb.notifier_call = da9030_battery_event;
523 ret = da903x_register_notifier(charger->master, &charger->nb,
531 da9030_battery_setup_psy(charger);
532 psy_cfg.drv_data = charger;
533 charger->psy = devm_power_supply_register(&pdev->dev,
534 &charger->psy_desc,
536 if (IS_ERR(charger->psy)) {
537 ret = PTR_ERR(charger->psy);
541 charger->debug_file = da9030_bat_create_debugfs(charger);
542 platform_set_drvdata(pdev, charger);
546 da903x_unregister_notifier(charger->master, &charger->nb,
550 cancel_delayed_work(&charger->work);
558 struct da9030_charger *charger = platform_get_drvdata(dev);
560 da9030_bat_remove_debugfs(charger);
562 da903x_unregister_notifier(charger->master, &charger->nb,
565 cancel_delayed_work_sync(&charger->work);
566 da9030_set_charge(charger, 0);
579 MODULE_DESCRIPTION("DA9030 battery charger driver");