/* * Copyright (c) 2018 Intel Corporation * * SPDX-License-Identifier: Apache-2.0 */ #include LOG_MODULE_REGISTER(usb_bos, CONFIG_USB_DEVICE_LOG_LEVEL); #include #include #include extern const uint8_t __usb_bos_desc_start[]; extern const uint8_t __usb_bos_desc_end[]; USB_DEVICE_BOS_DESC_DEFINE_HDR struct usb_bos_descriptor bos_hdr = { .bLength = sizeof(struct usb_bos_descriptor), .bDescriptorType = USB_DESC_BOS, .wTotalLength = 0, /* should be corrected with register */ .bNumDeviceCaps = 0, /* should be set with register */ }; size_t usb_bos_get_length(void) { return __usb_bos_desc_end - __usb_bos_desc_start; } const void *usb_bos_get_header(void) { return __usb_bos_desc_start; } void usb_bos_fix_total_length(void) { bos_hdr.wTotalLength = usb_bos_get_length(); } void usb_bos_register_cap(struct usb_bos_platform_descriptor *desc) { /* Has effect only on first register */ bos_hdr.wTotalLength = usb_bos_get_length(); bos_hdr.bNumDeviceCaps += 1U; } int usb_handle_bos(struct usb_setup_packet *setup, int32_t *len, uint8_t **data) { if (USB_GET_DESCRIPTOR_TYPE(setup->wValue) == USB_DESC_BOS) { LOG_DBG("Read BOS descriptor"); *data = (uint8_t *)usb_bos_get_header(); *len = usb_bos_get_length(); return 0; } return -ENOTSUP; }