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/* Copyright (c) 2012 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.
*
* Battery pack vendor provided charging profile
*/
#include "battery_pack.h"
#include "gpio.h"
#include "host_command.h"
#include "smart_battery.h"
#define SB_SHIP_MODE_ADDR 0x00
#define SB_SHIP_MODE_DATA 0x0010
const struct battery_temperature_ranges bat_temp_ranges = {
.start_charging_min_c = 0,
.start_charging_max_c = 50,
.charging_min_c = 0,
.charging_max_c = 50,
.discharging_min_c = 0,
.discharging_max_c = 65,
};
static const struct battery_info info = {
/* Change to the real specification */
.voltage_max = 13050,
.voltage_normal = 11400,
.voltage_min = 9000,
/* Pre-charge values. */
.precharge_current = 256, /* mA */
};
const struct battery_info *battery_get_info(void)
{
return &info;
}
/* Triger the command twice to make sure the battery can be cut-off.
* Need to confirm with vendor why the command should be trigered twice.
* By the result of experiment, it's ok and can be cut-off. */
int battery_command_cut_off(struct host_cmd_handler_args *args)
{
int rv;
rv = sb_write(SB_SHIP_MODE_ADDR, SB_SHIP_MODE_DATA);
if (!rv)
rv = sb_write(SB_SHIP_MODE_ADDR, SB_SHIP_MODE_DATA);
return rv;
}
DECLARE_HOST_COMMAND(EC_CMD_BATTERY_CUT_OFF, battery_command_cut_off,
EC_VER_MASK(0));
/* FIXME: The smart battery should do the right thing - that's why it's
* called "smart". Do we really want to second-guess it? For now, let's not. */
void battery_vendor_params(struct batt_params *batt)
{
}
int battery_is_connected(void)
{
return (gpio_get_level(GPIO_BAT_DETECT_L) == 0);
}
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