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/* Copyright (c) 2014 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.
*/
#ifndef __CHARGE_MANAGER_H
#define __CHARGE_MANAGER_H
/* Charge port that indicates no active port */
#define CHARGE_SUPPLIER_NONE -1
#define CHARGE_PORT_NONE -1
#define CHARGE_CEIL_NONE -1
/* Initial charge state */
#define CHARGE_CURRENT_UNINITIALIZED -1
#define CHARGE_VOLTAGE_UNINITIALIZED -1
/* Port override settings */
enum {
OVERRIDE_DONT_CHARGE = -2,
OVERRIDE_OFF = -1,
/* [0, PD_PORT_COUNT): Port# */
};
#define POWER(charge_port) ((charge_port.current) * (charge_port.voltage))
/* Charge tasks report available current and voltage */
struct charge_port_info {
int current;
int voltage;
};
/* Called by charging tasks to update their available charge */
void charge_manager_update(int supplier,
int charge_port,
struct charge_port_info *charge);
/* Update charge ceiling for a given port */
void charge_manager_set_ceil(int port, int ceil);
/* Select an 'override port', which is always the preferred charge port */
void charge_manager_set_override(int port);
/* Returns the current active charge port, as determined by charge manager */
int charge_manager_get_active_charge_port(void);
#endif /* __CHARGE_MANAGER_H */
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