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/* Copyright 2021 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.
*
* STM32G4 Family specific USB functionality
*/
#include "registers.h"
#include "system.h"
#include "usb_api.h"
void usb_connect(void)
{
/* USB is in use */
disable_sleep(SLEEP_MASK_USB_DEVICE);
STM32_USB_BCDR |= STM32_USB_BCDR_DPPU;
}
void usb_disconnect(void)
{
/* disable pull-up on DP to disconnect */
STM32_USB_BCDR &= ~STM32_USB_BCDR_DPPU;
/* USB is off, so sleep whenever */
enable_sleep(SLEEP_MASK_USB_DEVICE);
}
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