blob: 4e7ca31d05d37d13c59b181f2e346e80b076251a [file] [log] [blame]
/* Copyright 2016 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_VIRTUAL_BATTERY_H
#define __CROS_EC_VIRTUAL_BATTERY_H
#if defined(CONFIG_I2C_VIRTUAL_BATTERY) && defined(CONFIG_BATTERY_SMART)
#define VIRTUAL_BATTERY_ADDR_FLAGS BATTERY_ADDR_FLAGS
#endif
/**
* Read/write value of battery parameter from charge state.
*
* @param batt_cmd_head The beginning of the smart battery command
* @param dest Destination buffer for data
* @param read_len Number of bytes to read to the buffer
* @param write_len Number of bytes to write
* @return EC_SUCCESS if successful, non-zero if error.
*
*/
int virtual_battery_operation(const uint8_t *batt_cmd_head,
uint8_t *dest,
int read_len,
int write_len);
/**
* Parse a command for virtual battery function.
*
* @param resp Pointer to the data structure to store the i2c messages
* @param in_len Accumulative number of bytes read
* @param err_code Pointer to the return value of i2c_xfer() or
* virtual_battery_operation()
* @param xferflags Flags
* @param read_len Number of bytes to read
* @param write_len Number of bytes to write
* @param out Data to send
* @return EC_SUCCESS if successful, non-zero if error.
*/
int virtual_battery_handler(struct ec_response_i2c_passthru *resp,
int in_len, int *err_code, int xferflags,
int read_len, int write_len,
const uint8_t *out);
/* Reset the state machine and static variables. */
void reset_parse_state(void);
#endif /* __CROS_EC_VIRTUAL_BATTERY_H */