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Diffstat (limited to 'include/virtual_battery.h')
-rw-r--r-- | include/virtual_battery.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/include/virtual_battery.h b/include/virtual_battery.h new file mode 100644 index 0000000000..c686a76172 --- /dev/null +++ b/include/virtual_battery.h @@ -0,0 +1,49 @@ +/* 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 BATTERY_ADDR +#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 */ |