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/*
* Copyright (c) 2012-2019, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* 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 _DP_USBPD_H_
#define _DP_USBPD_H_
#include <linux/usb/usbpd.h>
#include <linux/types.h>
#include <linux/device.h>
#include "dp_hpd.h"
/**
* enum dp_usbpd_port - usb/dp port type
* @DP_USBPD_PORT_NONE: port not configured
* @DP_USBPD_PORT_UFP_D: Upstream Facing Port - DisplayPort
* @DP_USBPD_PORT_DFP_D: Downstream Facing Port - DisplayPort
* @DP_USBPD_PORT_D_UFP_D: Both UFP & DFP - DisplayPort
*/
enum dp_usbpd_port {
DP_USBPD_PORT_NONE,
DP_USBPD_PORT_UFP_D,
DP_USBPD_PORT_DFP_D,
DP_USBPD_PORT_D_UFP_D,
};
/**
* struct dp_usbpd - DisplayPort status
*
* @port: port configured
* @low_pow_st: low power state
* @adaptor_dp_en: adaptor functionality enabled
* @usb_config_req: request to switch to usb
* @exit_dp_mode: request exit from displayport mode
* @debug_en: bool to specify debug mode
*/
struct dp_usbpd {
struct dp_hpd base;
enum dp_usbpd_port port;
bool low_pow_st;
bool adaptor_dp_en;
bool usb_config_req;
bool exit_dp_mode;
bool debug_en;
};
/**
* dp_usbpd_init() - initialize the usbpd module
*
* @dev: device instance of the caller
* @pd: handle for the usbpd driver data
* @cb: struct containing callback function pointers.
*
* This function allows the client to initialize the usbpd
* module. The module will communicate with usb driver and
* handles the power delivery (PD) communication with the
* sink/usb device. This module will notify the client using
* the callback functions about the connection and status.
*/
struct dp_hpd *dp_usbpd_init(struct device *dev, struct usbpd *pd,
struct dp_hpd_cb *cb);
/**
* dp_usbpd_deinit() - deinitialize the usbpd module
*
* @pd: pointer to the dp_hpd base module
*
* This function will cleanup the usbpd module
*/
void dp_usbpd_deinit(struct dp_hpd *pd);
#endif /* _DP_USBPD_H_ */
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