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8b592052ce
This reduces oscillations in the charging algorithm. This change also adds more debug output so it's easier to see what the charging state machine is doing. BUG=chrome-os-partner:9572 BRANCH=link TEST=discharge battery; charge battery; note infrequent but useful debug output Change-Id: I4c8609c2ca8a6cab3eae151ecf2bb1520103fece Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/33811 Reviewed-by: Rong Chang <rongchang@chromium.org>
66 lines
1.6 KiB
C
66 lines
1.6 KiB
C
/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* Charger/battery debug command module for Chrome EC */
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#ifndef __CROS_EC_CHARGER_H
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#define __CROS_EC_CHARGER_H
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#include "common.h"
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/* Charger infomation
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* voltage unit: mV
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* current unit: mA
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*/
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struct charger_info {
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const char *name;
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uint16_t voltage_max;
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uint16_t voltage_min;
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uint16_t voltage_step;
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uint16_t current_max;
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uint16_t current_min;
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uint16_t current_step;
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uint16_t input_current_max;
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uint16_t input_current_min;
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uint16_t input_current_step;
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};
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/* Power state machine post init */
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int charger_post_init(void);
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/* Get charger information. */
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const struct charger_info *charger_get_info(void);
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/* Get smart battery charger status. Supported flags:
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* CHARGER_CHARGE_INHIBITED
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* CHARGER_LEVEL_2
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*/
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int charger_get_status(int *status);
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/* Set smart battery charger mode. Supported mode(s):
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* CHARGER_FLAG_INHIBIT_CHARGE
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*/
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int charger_set_mode(int mode);
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/**
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* Return the closest match the charger can supply to the requested current.
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*
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* @param current Requested current in mA.
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*
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* @return Current the charger will actually supply if <current> is requested.
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*/
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int charger_closest_current(int current);
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/* Get/set charge current limit in mA */
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int charger_get_current(int *current);
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int charger_set_current(int current);
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/* Get/set charge voltage limit in mV */
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int charger_get_voltage(int *voltage);
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int charger_set_voltage(int voltage);
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#endif /* __CROS_EC_CHARGER_H */
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