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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "lib/tinyusb/src/device/usbd.h"
#include "supervisor/background_callback.h"
#include "supervisor/usb.h"
#include "src/rp2_common/hardware_irq/include/hardware/irq.h"
#include "src/rp2_common/pico_platform/include/pico/platform.h"
#include "src/rp2040/hardware_regs/include/hardware/regs/intctrl.h"
void init_usb_hardware(void) {
}
STATIC void _usb_irq_wrapper(void) {
usb_irq_handler(0);
}
void post_usb_init(void) {
irq_set_enabled(USBCTRL_IRQ, false);
irq_handler_t usb_handler = irq_get_exclusive_handler(USBCTRL_IRQ);
if (usb_handler) {
irq_remove_handler(USBCTRL_IRQ, usb_handler);
}
irq_set_exclusive_handler(USBCTRL_IRQ, _usb_irq_wrapper);
irq_set_enabled(USBCTRL_IRQ, true);
// There is a small window where the USB interrupt may be handled by the
// pico-sdk instead of CircuitPython. If that is the case, then we'll have
// USB events to process that we didn't queue up a background task for. So,
// queue one up here even if we might not have anything to do.
usb_background_schedule();
}
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