| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * Huawei Matebook E Go Embedded Controller |
| * |
| * Copyright (C) 2024-2025 Pengyu Luo <mitltlatltl@gmail.com> |
| */ |
| |
| #ifndef __HUAWEI_GAOKUN_EC_H__ |
| #define __HUAWEI_GAOKUN_EC_H__ |
| |
| #define GAOKUN_UCSI_CCI_SIZE 4 |
| #define GAOKUN_UCSI_MSGI_SIZE 16 |
| #define GAOKUN_UCSI_READ_SIZE (GAOKUN_UCSI_CCI_SIZE + GAOKUN_UCSI_MSGI_SIZE) |
| #define GAOKUN_UCSI_WRITE_SIZE 24 /* 8B CTRL, 16B MSGO */ |
| |
| #define GAOKUN_UCSI_NO_PORT_UPDATE (-1) |
| |
| #define GAOKUN_SMART_CHARGE_DATA_SIZE 4 /* mode, delay, start, end */ |
| |
| /* -------------------------------------------------------------------------- */ |
| |
| struct gaokun_ec; |
| struct gaokun_ucsi_reg; |
| struct notifier_block; |
| |
| #define GAOKUN_MOD_NAME "huawei_gaokun_ec" |
| #define GAOKUN_DEV_PSY "psy" |
| #define GAOKUN_DEV_UCSI "ucsi" |
| |
| /* -------------------------------------------------------------------------- */ |
| /* Common API */ |
| |
| int gaokun_ec_register_notify(struct gaokun_ec *ec, |
| struct notifier_block *nb); |
| void gaokun_ec_unregister_notify(struct gaokun_ec *ec, |
| struct notifier_block *nb); |
| |
| int gaokun_ec_read(struct gaokun_ec *ec, const u8 *req, |
| size_t resp_len, u8 *resp); |
| int gaokun_ec_write(struct gaokun_ec *ec, const u8 *req); |
| int gaokun_ec_read_byte(struct gaokun_ec *ec, const u8 *req, u8 *byte); |
| |
| /* -------------------------------------------------------------------------- */ |
| /* API for PSY */ |
| |
| int gaokun_ec_psy_multi_read(struct gaokun_ec *ec, u8 reg, |
| size_t resp_len, u8 *resp); |
| |
| static inline int gaokun_ec_psy_read_byte(struct gaokun_ec *ec, |
| u8 reg, u8 *byte) |
| { |
| return gaokun_ec_psy_multi_read(ec, reg, sizeof(*byte), byte); |
| } |
| |
| static inline int gaokun_ec_psy_read_word(struct gaokun_ec *ec, |
| u8 reg, u16 *word) |
| { |
| return gaokun_ec_psy_multi_read(ec, reg, sizeof(*word), (u8 *)word); |
| } |
| |
| int gaokun_ec_psy_get_smart_charge(struct gaokun_ec *ec, |
| u8 resp[GAOKUN_SMART_CHARGE_DATA_SIZE]); |
| int gaokun_ec_psy_set_smart_charge(struct gaokun_ec *ec, |
| const u8 req[GAOKUN_SMART_CHARGE_DATA_SIZE]); |
| |
| int gaokun_ec_psy_get_smart_charge_enable(struct gaokun_ec *ec, bool *on); |
| int gaokun_ec_psy_set_smart_charge_enable(struct gaokun_ec *ec, bool on); |
| |
| /* -------------------------------------------------------------------------- */ |
| /* API for UCSI */ |
| |
| int gaokun_ec_ucsi_read(struct gaokun_ec *ec, u8 resp[GAOKUN_UCSI_READ_SIZE]); |
| int gaokun_ec_ucsi_write(struct gaokun_ec *ec, |
| const u8 req[GAOKUN_UCSI_WRITE_SIZE]); |
| |
| int gaokun_ec_ucsi_get_reg(struct gaokun_ec *ec, struct gaokun_ucsi_reg *ureg); |
| int gaokun_ec_ucsi_pan_ack(struct gaokun_ec *ec, int port_id); |
| |
| #endif /* __HUAWEI_GAOKUN_EC_H__ */ |
