4571b23507
Use the new altmode framework to receive the connect, disconnect and attention events. Change-Id: Ic542525b526e1abd0f153c293bca6e4cdbb6bf0b Signed-off-by: Tatenda Chipeperekwa <tatendac@codeaurora.org>
76 line
1.9 KiB
C
76 line
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2012-2020, The Linux Foundation. All rights reserved.
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*/
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#ifndef _DP_USBPD_H_
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#define _DP_USBPD_H_
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#include <linux/types.h>
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#include "dp_hpd.h"
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struct device;
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/**
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* enum dp_usbpd_port - usb/dp port type
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* @DP_USBPD_PORT_NONE: port not configured
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* @DP_USBPD_PORT_UFP_D: Upstream Facing Port - DisplayPort
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* @DP_USBPD_PORT_DFP_D: Downstream Facing Port - DisplayPort
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* @DP_USBPD_PORT_D_UFP_D: Both UFP & DFP - DisplayPort
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*/
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enum dp_usbpd_port {
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DP_USBPD_PORT_NONE,
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DP_USBPD_PORT_UFP_D,
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DP_USBPD_PORT_DFP_D,
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DP_USBPD_PORT_D_UFP_D,
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};
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/**
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* struct dp_usbpd - DisplayPort status
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*
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* @port: port configured
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* @low_pow_st: low power state
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* @adaptor_dp_en: adaptor functionality enabled
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* @usb_config_req: request to switch to usb
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* @exit_dp_mode: request exit from displayport mode
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* @debug_en: bool to specify debug mode
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*/
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struct dp_usbpd {
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struct dp_hpd base;
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enum dp_usbpd_port port;
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bool low_pow_st;
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bool adaptor_dp_en;
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bool usb_config_req;
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bool exit_dp_mode;
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bool debug_en;
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};
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#ifdef CONFIG_DRM_MSM_DP_USBPD_LEGACY
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/**
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* dp_usbpd_get() - setup usbpd module
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*
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* @dev: device instance of the caller
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* @cb: struct containing callback function pointers.
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*
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* This function allows the client to initialize the usbpd
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* module. The module will communicate with usb driver and
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* handles the power delivery (PD) communication with the
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* sink/usb device. This module will notify the client using
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* the callback functions about the connection and status.
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*/
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struct dp_hpd *dp_usbpd_get(struct device *dev, struct dp_hpd_cb *cb);
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void dp_usbpd_put(struct dp_hpd *pd);
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#else
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static inline struct dp_hpd *dp_usbpd_get(struct device *dev,
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struct dp_hpd_cb *cb)
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{
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return NULL;
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}
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static inline void dp_usbpd_put(struct dp_hpd *pd)
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{
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}
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#endif /* CONFIG_DRM_MSM_DP_USBPD_LEGACY */
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#endif /* _DP_USBPD_H_ */
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