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/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
* Smart battery driver.
*/
#include "battery_pack.h"
#include "common.h"
#include "console.h"
#include "smart_battery.h"
#include "smart_battery_stub.h"
#include "uart.h"
#include "util.h"
static uint16_t mock_smart_battery[SB_MANUFACTURER_DATA + 1];
int sb_read(int cmd, int *param)
{
if (cmd >= ARRAY_SIZE(mock_smart_battery))
return EC_ERROR_UNIMPLEMENTED;
if (cmd < 0 || param == NULL)
return EC_ERROR_INVAL;
*param = mock_smart_battery[cmd];
return EC_SUCCESS;
}
int sb_write(int cmd, int param)
{
if (cmd >= ARRAY_SIZE(mock_smart_battery))
return EC_ERROR_UNIMPLEMENTED;
if (cmd < 0)
return EC_ERROR_INVAL;
mock_smart_battery[cmd] = param;
return EC_SUCCESS;
}
int battery_manufacturer_name(char *manufacturer_name, int buf_size)
{
return EC_SUCCESS;
}
int battery_device_name(char *device_name, int buf_size)
{
return EC_SUCCESS;
}
int battery_device_chemistry(char *device_chemistry, int buf_size)
{
return EC_SUCCESS;
}
int battery_current(int *current)
{
int rv, d;
rv = sb_read(SB_CURRENT, &d);
if (rv)
return rv;
*current = (int16_t)d;
return EC_SUCCESS;
}
int battery_average_current(int *current)
{
int rv, d;
rv = sb_read(SB_AVERAGE_CURRENT, &d);
if (rv)
return rv;
*current = (int16_t)d;
return EC_SUCCESS;
}
int battery_time_at_rate(int rate, int *minutes)
{
return EC_SUCCESS;
}
int battery_manufacturer_date(int *year, int *month, int *day)
{
return EC_SUCCESS;
}
/* Fake battery */
const struct battery_temperature_ranges bat_temp_ranges = {
/*
* Operational temperature range
* 0 <= T_charge <= 50 deg C
* -20 <= T_discharge <= 60 deg C
*/
.start_charging_min_c = 0,
.start_charging_max_c = 50,
.charging_min_c = 0,
.charging_max_c = 50,
.discharging_min_c = -20,
.discharging_max_c = 60,
};
static const struct battery_info bat_info = {
/*
* Design voltage
* max = 8.4V
* normal = 7.4V
* min = 6.0V
*/
.voltage_max = 8400,
.voltage_normal = 7400,
.voltage_min = 6000,
/* Pre-charge current: I <= 0.01C */
.precharge_current = 64, /* mA */
};
const struct battery_info *battery_get_info(void)
{
return &bat_info;
}
void battery_vendor_params(struct batt_params *batt)
{
}
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