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/*
* typec.h - Type-C connector Framework
*
* Copyright (C) 2015 HUAWEI, Inc.
* Copyright (c) 2015, The Linux Foundation. All rights reserved.
* Author: HUAWEI, Inc.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#ifndef _TYPEC_H_
#define _TYPEC_H_
#include <linux/types.h>
#include <linux/device.h>
enum typec_current_mode {
TYPEC_CURRENT_MODE_DEFAULT = 0,
TYPEC_CURRENT_MODE_MID,
TYPEC_CURRENT_MODE_HIGH,
TYPEC_CURRENT_MODE_UNSPPORTED
};
enum typec_attached_state {
TYPEC_NOT_ATTACHED = 0,
TYPEC_ATTACHED_AS_UFP,
TYPEC_ATTACHED_AS_DFP,
TYPEC_ATTACHED_TO_ACCESSORY
};
enum typec_port_mode {
TYPEC_MODE_ACCORDING_TO_PROT = 0,
TYPEC_UFP_MODE,
TYPEC_DFP_MODE,
TYPEC_DRP_MODE
};
enum typec_event {
TYPEC_SINK_DETECTED = 0,
TYPEC_SINK_REMOVED
};
struct typec_device_ops {
/* to get the Type-C Current mode */
enum typec_current_mode (*current_detect) (void);
/* to get the Type-C Current mode dynamically */
enum typec_current_mode (*dynamic_current_detect) (void);
/* to get the attached state and determine what was attached */
enum typec_attached_state (*attached_state_detect) (void);
/* to get the current advertisement in DFP or DRP modes */
enum typec_current_mode (*current_advertise_get) (void);
/* to set the current advertisement in DFP or DRP modes */
int (*current_advertise_set) (enum typec_current_mode current_mode);
/* to get the port mode (UFP, DFP or DRP) */
enum typec_port_mode (*port_mode_get) (void);
/* to set the port mode (UFP, DFP or DRP), the chip will operate according the mode */
int (*port_mode_set) (enum typec_port_mode port_mode);
/* to get all the register value */
ssize_t(*dump_regs) (char *buf);
};
extern int add_typec_device(struct device *parent,
struct typec_device_ops *typec_ops);
extern enum typec_current_mode typec_current_mode_detect(void);
extern int typec_sink_detected_handler(enum typec_event typec_event);
extern void typec_current_changed(enum typec_current_mode current_mode);
#endif /* _TYPEC_H_ */
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