static void battery_monitor_work(struct work_struct *work)
{
int vbatt;
struct bcl_context *bcl = container_of(work,
struct bcl_context, battery_monitor_work);
if (gbcl->bcl_mode == BCL_DEVICE_ENABLED) {
bcl->btm_mode = BCL_VPH_MONITOR_MODE;
update_cpu_freq();
bcl_handle_hotplug();
bcl_get_battery_voltage(&vbatt);
pr_debug("vbat is %d\n", vbatt);
if (bcl_vph_state == BCL_LOW_THRESHOLD) {
if (vbatt <= gbcl->btm_vph_low_thresh) {
/*relay the notification to charger ic driver*/
if (bcl->btm_charger_ic_low_thresh ==
gbcl->btm_vph_adc_param.low_thr) {
bcl_hit_shutdown_voltage = true;
} else
bcl_config_vph_adc(gbcl,
BCL_LOW_THRESHOLD_TYPE_MIN);
} else
bcl_config_vph_adc(gbcl,
BCL_HIGH_THRESHOLD_TYPE);
} else {
bcl_config_vph_adc(gbcl, BCL_LOW_THRESHOLD_TYPE);
}
}
}
static void power_supply_callback(struct power_supply *psy)
{
int vbatt = 0;
if (bcl_hit_shutdown_voltage)
return;
if (0 != bcl_get_battery_voltage(&vbatt))
return;
if (vbatt <= gbcl->btm_vph_low_thresh) {
/*relay the notification to charger ic driver*/
bcl_config_vph_adc(gbcl, BCL_LOW_THRESHOLD_TYPE_MIN);
} else if ((vbatt > gbcl->btm_vph_low_thresh) &&
(vbatt <= gbcl->btm_vph_high_thresh))
bcl_config_vph_adc(gbcl, BCL_LOW_THRESHOLD_TYPE);
else
bcl_config_vph_adc(gbcl, BCL_HIGH_THRESHOLD_TYPE);
}
static int bcl_resume(struct device *dev)
{
struct bcl_context *bcl = dev_get_drvdata(dev);
int vbatt = 0;
if (bcl->bcl_monitor_type == BCL_IBAT_MONITOR_TYPE &&
bcl->bcl_mode == BCL_DEVICE_ENABLED) {
bcl->btm_mode = BCL_VPH_MONITOR_MODE;
bcl_get_battery_voltage(&vbatt);
if (vbatt <= gbcl->btm_vph_low_thresh) {
/*relay the notification to charger ic driver*/
bcl_config_vph_adc(gbcl, BCL_LOW_THRESHOLD_TYPE_MIN);
} else if ((vbatt > gbcl->btm_vph_low_thresh) &&
(vbatt <= gbcl->btm_vph_high_thresh))
bcl_config_vph_adc(gbcl, BCL_LOW_THRESHOLD_TYPE);
else
bcl_config_vph_adc(gbcl, BCL_HIGH_THRESHOLD_TYPE);
}
return 0;
}
/*
* BCL iavail calculation and trigger notification to user space
* if iavail cross threshold
*/
static void bcl_calculate_iavail_trigger(void)
{
int iavail_ma = 0;
int vbatt_mv;
int rbatt_mohm;
bool threshold_cross = false;
if (!gbcl) {
pr_err("called before initialization\n");
return;
}
if (bcl_get_battery_voltage(&vbatt_mv))
return;
if (bcl_get_resistance(&rbatt_mohm))
return;
iavail_ma = (vbatt_mv - gbcl->bcl_vbat_min) * 1000 / rbatt_mohm;
gbcl->bcl_rbat_mohm = rbatt_mohm;
gbcl->bcl_vbat_mv = vbatt_mv;
gbcl->bcl_iavail = iavail_ma;
pr_debug("iavail %d, vbatt %d rbatt %d\n", iavail_ma, vbatt_mv,
rbatt_mohm);
if ((gbcl->bcl_threshold_mode[BCL_HIGH_THRESHOLD_TYPE] ==
BCL_IAVAIL_THRESHOLD_ENABLED)
&& (iavail_ma >=
gbcl->bcl_threshold_value_ma[BCL_HIGH_THRESHOLD_TYPE]))
threshold_cross = true;
else if ((gbcl->bcl_threshold_mode[BCL_LOW_THRESHOLD_TYPE]
== BCL_IAVAIL_THRESHOLD_ENABLED)
&& (iavail_ma <=
gbcl->bcl_threshold_value_ma[BCL_LOW_THRESHOLD_TYPE]))
threshold_cross = true;
if (threshold_cross)
sysfs_notify(&gbcl->dev->kobj, NULL, "type");
}
