Files
OpenCellular/include/charge_manager.h
Vijay Hiremath 33fe5e437d charger/Kunimitsu: Fix for boot from cut-off battery
Battery in cut-off mode wakes when voltage is applied to the PACK
and takes approximately 2 to 3 seconds to initialize before capable
of providing the power. Hence made the battery present status to
BP_NO in case of cut-off mode. Once the battery is ready new status
is updated as BP_YES.
When the battery status changes from BP_NO to BP_YES, charger input
current is set to board specific charger input current which is not
sufficient to boot the AP hence the system reboots. To avoid this
issue, added code to write charger manager negotiated current to
charger input current when the battery status changes from BP_NO to
BP_YES.

BRANCH=none
BUG=chrome-os-partner:49224
TEST=Manually tested on Kunimitsu.
     Used console command 'cutoff' to put the battery in cut-off mode.
     Inserted the adopter to wake the system, system doesn't reboot &
     the battery charges.

Change-Id: Ia5a1457506b4bef0b3dd27993e4b60ae64c8f746
Signed-off-by: Vijay Hiremath <vijay.p.hiremath@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/322430
Commit-Ready: Shawn N <shawnn@chromium.org>
Tested-by: Shawn N <shawnn@chromium.org>
Reviewed-by: Shawn N <shawnn@chromium.org>
2016-02-02 23:48:33 -08:00

100 lines
2.7 KiB
C

/* 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 __CROS_EC_CHARGE_MANAGER_H
#define __CROS_EC_CHARGE_MANAGER_H
#include "common.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
/* Commonly-used charge suppliers listed in no particular order */
enum charge_supplier {
CHARGE_SUPPLIER_PD,
CHARGE_SUPPLIER_TYPEC,
CHARGE_SUPPLIER_BC12_DCP,
CHARGE_SUPPLIER_BC12_CDP,
CHARGE_SUPPLIER_BC12_SDP,
CHARGE_SUPPLIER_PROPRIETARY,
CHARGE_SUPPLIER_OTHER,
CHARGE_SUPPLIER_VBUS,
CHARGE_SUPPLIER_COUNT
};
/* 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_charge(int supplier,
int port,
struct charge_port_info *charge);
/* Partner port dualrole capabilities */
enum dualrole_capabilities {
CAP_UNKNOWN,
CAP_DUALROLE,
CAP_DEDICATED,
};
/* Called by charging tasks to indicate partner dualrole capability change */
void charge_manager_update_dualrole(int port, enum dualrole_capabilities cap);
/*
* Charge ceiling can be set independently by different tasks / functions,
* for different purposes.
*/
enum ceil_requestor {
/* Set by PD task, during negotiation */
CEIL_REQUESTOR_PD,
/* Set by host commands */
CEIL_REQUESTOR_HOST,
/* Number of ceiling groups */
CEIL_REQUESTOR_COUNT,
};
/* Update charge ceiling for a given port / requestor */
void charge_manager_set_ceil(int port, enum ceil_requestor requestor, int ceil);
/* Select an 'override port', which is always the preferred charge port */
int charge_manager_set_override(int port);
int charge_manager_get_override(void);
/* Returns the current active charge port, as determined by charge manager */
int charge_manager_get_active_charge_port(void);
/* Return the power limit (uW) set by charge manager. */
int charge_manager_get_power_limit_uw(void);
/* Return the charger current (mA) value. */
int charge_manager_get_charger_current(void);
#ifdef CONFIG_USB_PD_LOGGING
/* Save power state log entry for the given port */
void charge_manager_save_log(int port);
#endif
/* Board-level callback functions */
/*
* Set the active charge port. Returns EC_SUCCESS if the charge port is
* accepted, returns ec_error_list status otherwise.
*/
int board_set_active_charge_port(int charge_port);
/* Set the charge current limit. */
void board_set_charge_limit(int charge_ma);
#endif /* __CROS_EC_CHARGE_MANAGER_H */