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