samples: add ble hci_usb sample.

Signed-off-by: Zelin Cai <[email protected]>

samples/ble/hci_usb/CMakeLists.txt

@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: Apache-2.0
+
+cmake_minimum_required(VERSION 3.20.0)
+find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
+project(hci_usb)
+
+target_sources(app PRIVATE src/main.c)

samples/ble/hci_usb/prj.conf

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+CONFIG_BT=y
+CONFIG_BT_HCI_RAW=y
+
+CONFIG_USB_DEVICE_STACK=y
+CONFIG_USB_DEVICE_PID=0x000B
+CONFIG_USB_DEVICE_BLUETOOTH=y
+CONFIG_USB_DEVICE_BLUETOOTH_VS_H4=n
+CONFIG_USB_DEVICE_INITIALIZE_AT_BOOT=n
+
+# We dont want any console or CDC ACM that may cause BlueZ to not detect hci_usb
+CONFIG_SERIAL=n
+CONFIG_CONSOLE=n
+CONFIG_UART_CONSOLE=n
+
+# Workaround: Unable to allocate command buffer when using K_NO_WAIT since
+# Host number of completed commands does not follow normal flow control.
+CONFIG_BT_BUF_CMD_TX_COUNT=10

samples/ble/hci_usb/sample.yaml

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+sample:
+  name: Bluetooth over USB sample
+common:
+  build_only: true
+  integration_platforms:
+    - connectkit_nrf52840
+    - dongle_nrf52840
+tests:
+  sample.bluetooth.hci_usb: {}
+  sample.bluetooth.hci_usb.device_next:
+    extra_args: CONF_FILE="usbd_next_prj.conf"

samples/ble/hci_usb/src/main.c

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+/*
+ * Copyright (c) 2018 Intel Corporation
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/kernel.h>
+#include <zephyr/sys/printk.h>
+#include <zephyr/usb/usb_device.h>
+#include <zephyr/usb/usbd.h>
+
+#if defined(CONFIG_USB_DEVICE_STACK_NEXT)
+USBD_CONFIGURATION_DEFINE(config_1,
+			  USB_SCD_SELF_POWERED,
+			  200);
+
+USBD_DESC_LANG_DEFINE(sample_lang);
+USBD_DESC_MANUFACTURER_DEFINE(sample_mfr, "ZEPHYR");
+USBD_DESC_PRODUCT_DEFINE(sample_product, "Zephyr USBD BT HCI");
+USBD_DESC_SERIAL_NUMBER_DEFINE(sample_sn, "0123456789ABCDEF");
+
+
+USBD_DEVICE_DEFINE(sample_usbd,
+		   DEVICE_DT_GET(DT_NODELABEL(zephyr_udc0)),
+		   0x2fe3, 0x000b);
+
+static int enable_usb_device_next(void)
+{
+	int err;
+
+	err = usbd_add_descriptor(&sample_usbd, &sample_lang);
+	if (err) {
+		return err;
+	}
+
+	err = usbd_add_descriptor(&sample_usbd, &sample_mfr);
+	if (err) {
+		return err;
+	}
+
+	err = usbd_add_descriptor(&sample_usbd, &sample_product);
+	if (err) {
+		return err;
+	}
+
+	err = usbd_add_descriptor(&sample_usbd, &sample_sn);
+	if (err) {
+		return err;
+	}
+
+	err = usbd_add_configuration(&sample_usbd, &config_1);
+	if (err) {
+		return err;
+	}
+
+	err = usbd_register_class(&sample_usbd, "bt_hci_0", 1);
+	if (err) {
+		return err;
+	}
+
+	err = usbd_init(&sample_usbd);
+	if (err) {
+		return err;
+	}
+
+	err = usbd_enable(&sample_usbd);
+	if (err) {
+		return err;
+	}
+
+	return 0;
+}
+#endif /* CONFIG_USB_DEVICE_STACK_NEXT */
+
+int main(void)
+{
+	int ret;
+
+#if defined(CONFIG_USB_DEVICE_STACK_NEXT)
+	ret = enable_usb_device_next();
+#else
+	ret = usb_enable(NULL);
+#endif
+
+	if (ret != 0) {
+		printk("Failed to enable USB");
+		return 0;
+	}
+
+	printk("Bluetooth over USB sample\n");
+	return 0;
+}

samples/ble/hci_usb/usbd_next_prj.conf

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+CONFIG_STDOUT_CONSOLE=y
+CONFIG_GPIO=y
+CONFIG_SERIAL=y
+CONFIG_UART_INTERRUPT_DRIVEN=y
+CONFIG_USB_DEVICE_INITIALIZE_AT_BOOT=n
+
+CONFIG_BT=y
+CONFIG_BT_HCI_RAW=y
+
+CONFIG_USB_DEVICE_STACK_NEXT=y
+CONFIG_USBD_BT_HCI=y
+
+CONFIG_LOG=y
+CONFIG_USBD_LOG_LEVEL_WRN=y
+CONFIG_UDC_DRIVER_LOG_LEVEL_WRN=y