/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2012-2020, The Linux Foundation. All rights reserved. */ #ifndef _DP_HPD_H_ #define _DP_HPD_H_ //#include <linux/usb/usbpd.h> #include <linux/types.h> #include <linux/device.h> enum plug_orientation { ORIENTATION_NONE, ORIENTATION_CC1, ORIENTATION_CC2, }; /** * struct dp_usbpd - DisplayPort status * * @orientation: plug orientation configuration * @low_pow_st: low power state * @adaptor_dp_en: adaptor functionality enabled * @multi_func: multi-function preferred * @usb_config_req: request to switch to usb * @exit_dp_mode: request exit from displayport mode * @hpd_irq: Change in the status since last message * @alt_mode_cfg_done: bool to specify alt mode status * @debug_en: bool to specify debug mode * @connect: simulate disconnect or connect for debug mode */ struct dp_usbpd { enum plug_orientation orientation; bool low_pow_st; bool adaptor_dp_en; bool multi_func; bool usb_config_req; bool exit_dp_mode; bool hpd_irq; bool alt_mode_cfg_done; bool debug_en; int (*connect)(struct dp_usbpd *dp_usbpd, bool hpd); }; /** * struct dp_usbpd_cb - callback functions provided by the client * * @configure: called by usbpd module when PD communication has * been completed and the usb peripheral has been configured on * dp mode. * @disconnect: notify the cable disconnect issued by usb. * @attention: notify any attention message issued by usb. */ struct dp_usbpd_cb { int (*configure)(struct device *dev); int (*disconnect)(struct device *dev); int (*attention)(struct device *dev); }; /** * dp_hpd_get() - setup hpd module * * @dev: device instance of the caller * @cb: struct containing callback function pointers. * * This function allows the client to initialize the usbpd * module. The module will communicate with HPD module. */ struct dp_usbpd *dp_hpd_get(struct device *dev, struct dp_usbpd_cb *cb); int dp_hpd_register(struct dp_usbpd *dp_usbpd); void dp_hpd_unregister(struct dp_usbpd *dp_usbpd); int dp_hpd_connect(struct dp_usbpd *dp_usbpd, bool hpd); #endif /* _DP_HPD_H_ */