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cfc69f6fb8
This adds functions required for the master in EC-EC communication, requesting base battery static and dynamic information, and charger control. BRANCH=none BUG=b:65526215 TEST=Flash lux and wand, EC-EC communication works. Change-Id: I7a46ee3f5848d22c2c9bea7870cbd7e74141cf3d Signed-off-by: Nicolas Boichat <drinkcat@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/839201
61 lines
1.9 KiB
C
61 lines
1.9 KiB
C
/* Copyright 2017 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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* EC-EC communication, functions for master.
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*/
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#ifndef EC_EC_COMM_MASTER_H_
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#define EC_EC_COMM_MASTER_H_
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#include <stdint.h>
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#include "config.h"
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#if defined(CONFIG_EC_EC_COMM_MASTER) && defined(CONFIG_EC_EC_COMM_BATTERY)
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#define CONFIG_EC_EC_COMM_BATTERY_MASTER
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#endif
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/*
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* TODO(b:65697620): Move these to some other C file, depending on a config
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* option.
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*/
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extern struct ec_response_battery_static_info base_battery_static;
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extern struct ec_response_battery_dynamic_info base_battery_dynamic;
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/**
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* Sends EC_CMD_BATTERY_GET_DYNAMIC command to slave, and writes the
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* battery dynamic information into base_battery_dynamic.
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*
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* Leaves base_battery_dynamic intact on error: it is the callers responsability
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* to clear the data or ignore it.
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* @return EC_RES_SUCCESS on success, EC_RES_ERROR on communication error,
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* else forwards the error code from the slave.
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*/
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int ec_ec_master_base_get_dynamic_info(void);
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/**
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* Sends EC_CMD_BATTERY_GET_STATIC command to slave, and writes the
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* battery static information into base_static_dynamic.
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*
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* Leaves base_battery_static intact on error: it is the callers responsability
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* to clear the data or ignore it.
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*
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* @return EC_RES_SUCCESS on success, EC_RES_ERROR on communication error,
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* else forwards the error code from the slave.
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*/
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int ec_ec_master_base_get_static_info(void);
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/**
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* Sends EC_CMD_CHARGER_CONTROL command to slave, with the given parameters
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* (see ec_commands.h/ec_params_charger_control for description).
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*
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* @return EC_RES_SUCCESS on success, EC_RES_ERROR on communication error,
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* else forwards the error code from the slave.
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*/
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int ec_ec_master_base_charge_control(int max_current,
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int otg_voltage,
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int allow_charging);
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#endif /* EC_EC_COMM_MASTER_H_ */
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