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// 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__ */
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