mirror of
https://github.com/Telecominfraproject/OpenCellular.git
synced 2025-12-29 18:11:05 +00:00
23b8885a02
Adding trickle charging mode to precharge batteries with voltage lower than minimal design value. This CL adds control to charger voltage to track battery input current change. To prevent battery from deeply discharging, this CL preserves 3% of the design capacity. Minor bug fixes include error state check and charger control logic. Signed-off-by: Rong Chang <rongchang@chromium.org> BUG=chrome-os-partner:8660,8661 TEST=manual Plug AC power, the power adapter led should be 'yellow'. On the EC serial console, type 'battery' and 'charger' commands. Battery input current should staid close to its desired current. A deeply discharged battery (5.5V) should be revived to a healthy state after 30 minutes ~ 4 hours. Change-Id: Ibaa2396c6b751639d98db32f5919b1e8ec700e40
19 lines
489 B
C
19 lines
489 B
C
/* 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 charging parameters and constraints
|
|
*/
|
|
|
|
#ifndef __CROS_EC_BATTERY_H
|
|
#define __CROS_EC_BATTERY_H
|
|
|
|
/* Design capacities, percentage */
|
|
#define BATTERY_LEVEL_WARNING 15
|
|
#define BATTERY_LEVEL_LOW 10
|
|
#define BATTERY_LEVEL_CRITICAL 5
|
|
#define BATTERY_LEVEL_SHUTDOWN 3
|
|
|
|
#endif /* __CROS_EC_BATTERY_H */
|
|
|