mirror of
https://github.com/Telecominfraproject/OpenCellular.git
synced 2026-01-08 16:41:55 +00:00
f66113247a
If battery is not present, input current is set to PD_MAX_CURRENT_MA.
If the input power set is greater than the maximum allowed system power,
system might get damaged. Hence, limit the input current to meet maximum
allowed input system power.
BUG=chrome-os-partner:58498
BRANCH=none
TEST=Manually tested on Reef. Removed the battery & using 'charger'
console command observed the following.
With Zinger charger at 20V - Input current is set to 2.25A
With Type-C & other chargers - Input current is set to 3A
Change-Id: Ife8686f322e095aa74b740a7c469bfe87107fb9a
Signed-off-by: Vijay Hiremath <vijay.p.hiremath@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/397865
Commit-Ready: Vijay P Hiremath <vijay.p.hiremath@intel.com>
Tested-by: Vijay P Hiremath <vijay.p.hiremath@intel.com>
Reviewed-by: Shawn N <shawnn@chromium.org>
89 lines
2.4 KiB
C
89 lines
2.4 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.
|
|
*/
|
|
|
|
#include "battery.h"
|
|
#include "battery_smart.h"
|
|
#include "charger.h"
|
|
#include "timer.h"
|
|
|
|
#ifndef __CROS_EC_CHARGE_STATE_V2_H
|
|
#define __CROS_EC_CHARGE_STATE_V2_H
|
|
|
|
#if defined(CONFIG_I2C_VIRTUAL_BATTERY) && defined(CONFIG_BATTERY_SMART)
|
|
#define VIRTUAL_BATTERY_ADDR BATTERY_ADDR
|
|
#endif
|
|
/*
|
|
* The values exported by charge_get_state() and charge_get_flags() are used
|
|
* only to control the LEDs (with one not-quite-correct exception). For V2
|
|
* we use a different set of states internally.
|
|
*/
|
|
enum charge_state_v2 {
|
|
ST_IDLE = 0,
|
|
ST_DISCHARGE,
|
|
ST_CHARGE,
|
|
ST_PRECHARGE,
|
|
|
|
NUM_STATES_V2
|
|
};
|
|
|
|
struct charge_state_data {
|
|
timestamp_t ts;
|
|
int ac;
|
|
int batt_is_charging;
|
|
struct charger_params chg;
|
|
struct batt_params batt;
|
|
enum charge_state_v2 state;
|
|
int requested_voltage;
|
|
int requested_current;
|
|
int desired_input_current;
|
|
};
|
|
|
|
/*
|
|
* Optional customization.
|
|
*
|
|
* On input, the struct reflects the default behavior. The function can make
|
|
* changes to the state, requested_voltage, or requested_current.
|
|
*
|
|
* Return value:
|
|
* >0 Desired time in usec for this poll period.
|
|
* 0 Use the default poll period (which varies with the state).
|
|
* <0 An error occurred. The poll time will be shorter than usual. Too
|
|
* many errors in a row may trigger some corrective action.
|
|
*/
|
|
int charger_profile_override(struct charge_state_data *);
|
|
|
|
/*
|
|
* Access to custom profile params through host commands.
|
|
* What this does is up to the implementation.
|
|
*/
|
|
enum ec_status charger_profile_override_get_param(uint32_t param,
|
|
uint32_t *value);
|
|
enum ec_status charger_profile_override_set_param(uint32_t param,
|
|
uint32_t value);
|
|
|
|
/**
|
|
* Set the charge input current limit. This value is stored and sent every
|
|
* time AC is applied.
|
|
*
|
|
* @param ma New input current limit in mA
|
|
* @param mv Negotiated charge voltage in mV.
|
|
* @return EC_SUCCESS or error
|
|
*/
|
|
int charge_set_input_current_limit(int ma, int mv);
|
|
|
|
|
|
/**
|
|
* Get value of battery parameter from charge state.
|
|
*
|
|
* @param batt_param battery parameter
|
|
* @param dest Destination buffer for data
|
|
* @param read_len Number of bytes to write to buffer
|
|
* @return EC_SUCCESS if successful, non-zero if error.
|
|
*
|
|
*/
|
|
int virtual_battery_read(uint8_t batt_param, uint8_t *dest, int read_len);
|
|
#endif /* __CROS_EC_CHARGE_STATE_V2_H */
|
|
|