53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
|
/* Copyright 2017 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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "battery.h"
|
||
|
|
#include "battery_smart.h"
|
||
|
|
#include "charge_state.h"
|
||
|
|
#include "console.h"
|
||
|
|
#include "ec_commands.h"
|
||
|
|
#include "extpower.h"
|
||
|
|
#include "gpio.h"
|
||
|
|
#include "util.h"
|
||
|
|
|
||
|
|
/* Shutdown mode parameter to write to manufacturer access register */
|
||
|
|
#define SB_SHIP_MODE_REG SB_MANUFACTURER_ACCESS
|
||
|
|
#define SB_SHUTDOWN_DATA 0x0010
|
||
|
|
|
||
|
|
static const struct battery_info info = {
|
||
|
|
.voltage_max = 8800,
|
||
|
|
.voltage_normal = 7700,
|
||
|
|
.voltage_min = 6000,
|
||
|
|
/* Pre-charge values. */
|
||
|
|
.precharge_current = 256, /* mA */
|
||
|
|
|
||
|
|
.start_charging_min_c = 0,
|
||
|
|
.start_charging_max_c = 45,
|
||
|
|
.charging_min_c = 0,
|
||
|
|
.charging_max_c = 60,
|
||
|
|
.discharging_min_c = -20,
|
||
|
|
.discharging_max_c = 60,
|
||
|
|
};
|
||
|
|
|
||
|
|
const struct battery_info *battery_get_info(void)
|
||
|
|
{
|
||
|
|
return &info;
|
||
|
|
}
|
||
|
|
|
||
|
|
int board_cut_off_battery(void)
|
||
|
|
{
|
||
|
|
int rv;
|
||
|
|
|
||
|
|
/* Ship mode command must be sent twice to take effect */
|
||
|
|
rv = sb_write(SB_SHIP_MODE_REG, SB_SHUTDOWN_DATA);
|
||
|
|
|
||
|
|
if (rv != EC_SUCCESS)
|
||
|
|
return rv;
|
||
|
|
|
||
|
|
return sb_write(SB_SHIP_MODE_REG, SB_SHUTDOWN_DATA);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* TODO(b:66575472): Do we need to define functions like battery_is_present? */
|