samples/subsys/usb/webusb/src/main.c

/*
 * Copyright (c) 2023-2024 Nordic Semiconductor ASA
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#include <sample_usbd.h>

#include <zephyr/sys/byteorder.h>
#include <zephyr/usb/usbd.h>
#include <zephyr/usb/class/usbd_hid.h>
#include <zephyr/usb/msos_desc.h>

#include <zephyr/logging/log.h>
LOG_MODULE_REGISTER(main, LOG_LEVEL_INF);

/*
 * There are three BOS descriptors used in the sample, a USB 2.0 EXTENSION from
 * the USB samples common code, a Microsoft OS 2.0 platform capability
 * descriptor, and a WebUSB platform capability descriptor.
 */
#include "webusb.h"
#include "msosv2.h"

static void msg_cb(struct usbd_context *const usbd_ctx,
		   const struct usbd_msg *const msg)
{
	LOG_INF("USBD message: %s", usbd_msg_type_string(msg->type));

	if (usbd_can_detect_vbus(usbd_ctx)) {
		if (msg->type == USBD_MSG_VBUS_READY) {
			if (usbd_enable(usbd_ctx)) {
				LOG_ERR("Failed to enable device support");
			}
		}

		if (msg->type == USBD_MSG_VBUS_REMOVED) {
			if (usbd_disable(usbd_ctx)) {
				LOG_ERR("Failed to disable device support");
			}
		}
	}
}

int main(void)
{
	struct usbd_context *sample_usbd;
	int ret;

	sample_usbd = sample_usbd_setup_device(msg_cb);
	if (sample_usbd == NULL) {
		LOG_ERR("Failed to setup USB device");
		return -ENODEV;
	}

	ret = usbd_add_descriptor(sample_usbd, &bos_vreq_msosv2);
	if (ret) {
		LOG_ERR("Failed to add MSOSv2 capability descriptor");
		return ret;
	}

	ret = usbd_add_descriptor(sample_usbd, &bos_vreq_webusb);
	if (ret) {
		LOG_ERR("Failed to add WebUSB capability descriptor");
		return ret;
	}

	ret = usbd_init(sample_usbd);
	if (ret) {
		LOG_ERR("Failed to initialize device support");
		return ret;
	}

	if (!usbd_can_detect_vbus(sample_usbd)) {
		ret = usbd_enable(sample_usbd);
		if (ret) {
			LOG_ERR("Failed to enable device support");
			return ret;
		}
	}

	return 0;
}