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u-boot/include/linux/usb/otg.h
Mark Kettenis 6a6468f479 usb: xhci-dwc3: Support role switch default role
When the device tree indicates support for role switching through
the "usb-role-switch" property, take the "role-switch-default-mode"
property into account when deciding which role to put the
controller into.

This makes USB devices work on Apple M1 systems where the device
tree may include a "dr_mode" property that is set to "otg", but
where we need to put the controller into "host" mode to see
devices connected to the type-C ports.

Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
2022-05-20 09:41:33 +02:00

49 lines
1.2 KiB
C

/* SPDX-License-Identifier: GPL-2.0+ */
/* include/linux/usb/otg.h
*
* Copyright (c) 2015 Texas Instruments Incorporated - http://www.ti.com
*
* USB OTG (On The Go) defines
*/
#ifndef __LINUX_USB_OTG_H
#define __LINUX_USB_OTG_H
#include <dm/ofnode.h>
enum usb_dr_mode {
USB_DR_MODE_UNKNOWN,
USB_DR_MODE_HOST,
USB_DR_MODE_PERIPHERAL,
USB_DR_MODE_OTG,
};
/**
* usb_get_dr_mode() - Get dual role mode for given device
* @node: ofnode of the given device
*
* The function gets phy interface string from property 'dr_mode',
* and returns the correspondig enum usb_dr_mode
*/
enum usb_dr_mode usb_get_dr_mode(ofnode node);
/**
* usb_get_dr_mode() - Get dual role mode for given device
* @node: ofnode of the given device
*
* The function gets phy interface string from property
* 'role-switch-defaulr-mode', and returns the correspondig enum
* usb_dr_mode
*/
enum usb_dr_mode usb_get_role_switch_default_mode(ofnode node);
/**
* usb_get_maximum_speed() - Get maximum speed for given device
* @node: ofnode of the given device
*
* The function gets phy interface string from property 'maximum-speed',
* and returns the correspondig enum usb_device_speed
*/
enum usb_device_speed usb_get_maximum_speed(ofnode node);
#endif /* __LINUX_USB_OTG_H */