mirror of
https://github.com/Telecominfraproject/OpenCellular.git
synced 2025-12-27 18:25:05 +00:00
d281308b48
This adds support for RD Detection on cr50. It can be used to detect a debug device and signal the controller to switch from the AP PHY to the to CCD PHY. When RDCC1 and 2 no longer detect the debug device, then the controller switches back to using the USB to AP PHY. BUG=chrome-os-partner:50700 BRANCH=none TEST=change the value on RDCC1 and RDCC1 and check that the usb controller connects to the right PHY. Change-Id: Ice01a45a31fe1932945f89df2e3b851f4d287a17 Signed-off-by: Mary Ruthven <mruthven@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/338454 Reviewed-by: Bill Richardson <wfrichar@chromium.org>
53 lines
1.5 KiB
C
53 lines
1.5 KiB
C
/* Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*
|
|
* USB API definitions.
|
|
*
|
|
* This file includes definitions needed by common code that wants to control
|
|
* the state of the USB peripheral, but doesn't need to know about the specific
|
|
* implementation.
|
|
*/
|
|
|
|
#ifndef __CROS_EC_USB_API_H
|
|
#define __CROS_EC_USB_API_H
|
|
|
|
/*
|
|
* Initialize the USB peripheral, enabling its clock and configuring the DP/DN
|
|
* GPIOs correctly. This function is called via an init hook (unless the board
|
|
* defined CONFIG_USB_INHIBIT_INIT), but may need to be called again if
|
|
* usb_release is called. This function will call usb_connect by default
|
|
* unless CONFIG_USB_INHIBIT_CONNECT is defined.
|
|
*/
|
|
void usb_init(void);
|
|
|
|
/* Check if USB peripheral is enabled. */
|
|
int usb_is_enabled(void);
|
|
|
|
/*
|
|
* Enable the pullup on the DP line to signal that this device exists to the
|
|
* host and to start the enumeration process.
|
|
*/
|
|
void usb_connect(void);
|
|
|
|
/*
|
|
* Disable the pullup on the DP line. This causes the device to be disconnected
|
|
* from the host.
|
|
*/
|
|
void usb_disconnect(void);
|
|
|
|
/*
|
|
* Disconnect from the host by calling usb_disconnect and then turn off the USB
|
|
* peripheral, releasing its GPIOs and disabling its clock.
|
|
*/
|
|
void usb_release(void);
|
|
|
|
#ifdef CONFIG_USB_SELECT_PHY
|
|
/* Select which PHY to use. */
|
|
void usb_select_phy(uint32_t phy);
|
|
|
|
/* Get the current PHY */
|
|
uint32_t usb_get_phy(void);
|
|
#endif
|
|
#endif /* __CROS_EC_USB_API_H */
|