Files
micropython/shared/tinyusb/mp_usbd.c
Angus Gratton 22f1d76633 shared/tinyusb: Use device event hook to schedule USB task.
Previously MicroPython ports would linker-wrap dcd_event_handler
in order to schedule the USB task callback to run when needed.

TinyUSB 0.16 added proper support for an event hook to do the
same thing without the hacky linker wrapping.

This work was funded through GitHub Sponsors.

Signed-off-by: Angus Gratton <angus@redyak.com.au>
2025-05-26 11:15:33 +10:00

68 lines
2.3 KiB
C

/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2022 Blake W. Felt & Angus Gratton
*
* 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 "py/mphal.h"
#if MICROPY_HW_ENABLE_USBDEV
#include "mp_usbd.h"
#if !MICROPY_HW_ENABLE_USB_RUNTIME_DEVICE
void mp_usbd_task(void) {
tud_task_ext(0, false);
}
void mp_usbd_task_callback(mp_sched_node_t *node) {
(void)node;
mp_usbd_task();
}
#endif // !MICROPY_HW_ENABLE_USB_RUNTIME_DEVICE
// Schedule the TinyUSB task on demand, when there is a new USB device event
TU_ATTR_FAST_FUNC void tud_event_hook_cb(uint8_t rhport, uint32_t eventid, bool in_isr) {
mp_usbd_schedule_task();
mp_hal_wake_main_task_from_isr();
}
TU_ATTR_FAST_FUNC void mp_usbd_schedule_task(void) {
static mp_sched_node_t usbd_task_node;
mp_sched_schedule_node(&usbd_task_node, mp_usbd_task_callback);
}
void mp_usbd_hex_str(char *out_str, const uint8_t *bytes, size_t bytes_len) {
size_t hex_len = bytes_len * 2;
for (int i = 0; i < hex_len; i += 2) {
static const char *hexdig = "0123456789abcdef";
out_str[i] = hexdig[bytes[i / 2] >> 4];
out_str[i + 1] = hexdig[bytes[i / 2] & 0x0f];
}
out_str[hex_len] = 0;
}
#endif // MICROPY_HW_ENABLE_USBDEV