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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.h"
#include "battery_smart.h"
#include "console.h"
#include "gpio.h"
#include "host_command.h"
#include "util.h"
/* Shutdown mode parameter to write to manufacturer access register */
#define SB_SHUTDOWN_DATA 0x0010
static const struct battery_info info = {
.voltage_max = 8400, /* mV */
.voltage_normal = 7400,
.voltage_min = 6000,
.precharge_current = 256, /* mA */
.start_charging_min_c = 0,
.start_charging_max_c = 45,
.charging_min_c = 0,
.charging_max_c = 45,
.discharging_min_c = 0,
.discharging_max_c = 60,
};
const struct battery_info *battery_get_info(void)
{
return &info;
}
static int cutoff(void)
{
int rv;
/* Ship mode command must be sent twice to take effect */
rv = sb_write(SB_MANUFACTURER_ACCESS, SB_SHUTDOWN_DATA);
if (rv != EC_SUCCESS)
return rv;
return sb_write(SB_MANUFACTURER_ACCESS, SB_SHUTDOWN_DATA);
}
static int battery_command_cut_off(struct host_cmd_handler_args *args)
{
return cutoff() ? EC_RES_SUCCESS : EC_RES_ERROR;
}
DECLARE_HOST_COMMAND(EC_CMD_BATTERY_CUT_OFF, battery_command_cut_off,
EC_VER_MASK(0));
static int command_battcutoff(int argc, char **argv)
{
return cutoff();
}
DECLARE_CONSOLE_COMMAND(battcutoff, command_battcutoff,
NULL,
"Enable battery cutoff (ship mode)",
NULL);
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