static int command_chgstate(int argc, char **argv)
{
int rv;
int val;
if (argc > 1) {
if (!strcasecmp(argv[1], "idle")) {
if (argc <= 2)
return EC_ERROR_PARAM_COUNT;
if (!parse_bool(argv[2], &val))
return EC_ERROR_PARAM2;
rv = set_chg_ctrl_mode(val ? CHARGE_CONTROL_IDLE :
CHARGE_CONTROL_NORMAL);
if (rv)
return rv;
#ifdef CONFIG_CHARGER_DISCHARGE_ON_AC
} else if (!strcasecmp(argv[1], "discharge")) {
if (argc <= 2)
return EC_ERROR_PARAM_COUNT;
if (!parse_bool(argv[2], &val))
return EC_ERROR_PARAM2;
rv = set_chg_ctrl_mode(val ? CHARGE_CONTROL_DISCHARGE :
CHARGE_CONTROL_NORMAL);
if (rv)
return rv;
#ifdef CONFIG_CHARGER_DISCHARGE_ON_AC_CUSTOM
rv = board_discharge_on_ac(val);
#else
rv = charger_discharge_on_ac(val);
#endif /* CONFIG_CHARGER_DISCHARGE_ON_AC_CUSTOM */
if (rv)
return rv;
#endif /* CONFIG_CHARGER_DISCHARGE_ON_AC */
} else if (!strcasecmp(argv[1], "debug")) {
if (argc <= 2)
return EC_ERROR_PARAM_COUNT;
if (!parse_bool(argv[2], &debugging))
return EC_ERROR_PARAM2;
} else {
return EC_ERROR_PARAM1;
}
}
dump_charge_state();
return EC_SUCCESS;
}
static int charge_command_charge_control(struct host_cmd_handler_args *args)
{
const struct ec_params_charge_control *p = args->params;
int rv;
if (system_is_locked())
return EC_RES_ACCESS_DENIED;
rv = set_chg_ctrl_mode(p->mode);
if (rv != EC_SUCCESS)
return EC_RES_ERROR;
#ifdef CONFIG_CHARGER_DISCHARGE_ON_AC
#ifdef CONFIG_CHARGER_DISCHARGE_ON_AC_CUSTOM
rv = board_discharge_on_ac(p->mode == CHARGE_CONTROL_DISCHARGE);
#else
rv = charger_discharge_on_ac(p->mode == CHARGE_CONTROL_DISCHARGE);
#endif
if (rv != EC_SUCCESS)
return EC_RES_ERROR;
#endif
return EC_RES_SUCCESS;
}
/**
* Discharge battery when on AC power for factory test.
*/
int board_discharge_on_ac(int enable)
{
return charger_discharge_on_ac(enable);
}
int charger_profile_override(struct charge_state_data *curr)
{
/* temp in 0.1 deg C */
int temp_c = curr->batt.temperature - 2731;
/* keep track of last temperature range for hysteresis */
static enum {
TEMP_RANGE_1,
TEMP_RANGE_2,
TEMP_RANGE_3,
TEMP_RANGE_4,
TEMP_RANGE_5,
} temp_range = TEMP_RANGE_3;
/* keep track of last voltage range for hysteresis */
static enum {
VOLTAGE_RANGE_LOW,
VOLTAGE_RANGE_HIGH,
} voltage_range = VOLTAGE_RANGE_LOW;
/* Current and previous battery voltage */
int batt_voltage;
static int prev_batt_voltage;
charger_discharge_on_ac(!(curr->batt.flags & BATT_FLAG_WANT_CHARGE));
/*
* Determine temperature range. The five ranges are:
* < 0C
* 0C>= <=15C
* 15C> <=20C
* 20C> <=45C
* > 45C
*
* If temp reading was bad, use last range.
*/
if (!(curr->batt.flags & BATT_FLAG_BAD_TEMPERATURE)) {
if (temp_c < 0)
temp_range = TEMP_RANGE_1;
else if (temp_c <= 150)
temp_range = TEMP_RANGE_2;
else if (temp_c <= 200)
temp_range = TEMP_RANGE_3;
else if (temp_c <= 450)
temp_range = TEMP_RANGE_4;
else
temp_range = TEMP_RANGE_5;
}
/*
* If battery voltage reading is bad, use the last reading.
*/
if (curr->batt.flags & BATT_FLAG_BAD_VOLTAGE) {
batt_voltage = prev_batt_voltage;
} else {
batt_voltage = prev_batt_voltage = curr->batt.voltage;
if (batt_voltage <= 8000)
voltage_range = VOLTAGE_RANGE_LOW;
else if (batt_voltage > 8000)
voltage_range = VOLTAGE_RANGE_HIGH;
}
/*
* If we are not charging or we aren't using fast charging profiles,
* then do not override desired current and voltage.
*/
if (curr->state != ST_CHARGE || !fast_charging_allowed)
return 0;
/*
* Okay, impose our custom will:
*
* When battery is < 0C:
* CC at 0mA @ 0V
* CV at 0V
*
* When battery is 0-15C:
* CC at 944mA until 8.0V @ 8.7V
* CC at 472mA @ 8.7V
* CV at 8.7V
*
* When battery is 15-20C:
* CC at 1416mA @ 8.7V
* CV at 8.7V
*
* When battery is 20-45C:
* CC at 3300mA @ 8.7V
* CV at 8.7V
*
* When battery is > 45C:
* CC at 0mA @ 0V
* CV at 0V
*/
switch (temp_range) {
case TEMP_RANGE_2:
if (voltage_range == VOLTAGE_RANGE_HIGH)
curr->requested_current = 472;
else
curr->requested_current = 944;
curr->requested_voltage = 8700;
break;
case TEMP_RANGE_3:
curr->requested_current = 1416;
curr->requested_voltage = 8700;
break;
case TEMP_RANGE_4:
curr->requested_current = 3300;
curr->requested_voltage = 8700;
break;
case TEMP_RANGE_1:
case TEMP_RANGE_5:
default:
curr->requested_current = 0;
curr->requested_voltage = 0;
break;
}
return 0;
}
