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77f011206c
The WebUSB specification defines a specific Platform Descriptor in the Binary Object Store: https://wicg.github.io/webusb/#webusb-platform-capability-descriptor This descriptor provides a special 'Landing page' URL to the host browser and associated privileges for it. Bump the USB version for BOS descriptors to 2.1 to be compatible with Chrome implementation. Signed-off-by: Vincent Palatin <vpalatin@chromium.org> BUG=none BRANCH=twinkie TEST=manual: on Twinkie (chip/stm32) and HG proto2 (chip/g), enumerate WebUSB descriptors with lsusb and connect to a WebUSB page in Chrome R61+. Change-Id: I7211ab554f4a6c156c1e8e79a3d9f0d6644217c6 Reviewed-on: https://chromium-review.googlesource.com/664813 Commit-Ready: Vincent Palatin <vpalatin@chromium.org> Tested-by: Vincent Palatin <vpalatin@chromium.org> Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
47 lines
1.2 KiB
C
47 lines
1.2 KiB
C
/* Copyright 2017 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* WebUSB platform descriptor */
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#include "common.h"
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#include "usb_descriptor.h"
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#include "util.h"
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#ifndef CONFIG_USB_BOS
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#error "CONFIG_USB_BOS must be defined to use WebUSB descriptor"
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#endif
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const void *webusb_url = USB_URL_DESC(HTTPS, CONFIG_WEBUSB_URL);
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/*
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* Platform Descriptor in the device Binary Object Store
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* as defined by USB 3.1 spec chapter 9.6.2.
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*/
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static struct {
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struct usb_bos_hdr_descriptor bos;
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struct usb_platform_descriptor platform;
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} bos_desc = {
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.bos = {
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.bLength = USB_DT_BOS_SIZE,
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.bDescriptorType = USB_DT_BOS,
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.wTotalLength = (USB_DT_BOS_SIZE + USB_DT_PLATFORM_SIZE),
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.bNumDeviceCaps = 1, /* platform caps */
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},
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.platform = {
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.bLength = USB_DT_PLATFORM_SIZE,
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.bDescriptorType = USB_DT_DEVICE_CAPABILITY,
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.bDevCapabilityType = USB_DC_DTYPE_PLATFORM,
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.bReserved = 0,
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.PlatformCapUUID = USB_PLAT_CAP_WEBUSB,
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.bcdVersion = 0x0100,
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.bVendorCode = 0x01,
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.iLandingPage = 1,
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},
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};
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const struct bos_context bos_ctx = {
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.descp = (void *)&bos_desc,
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.size = sizeof(bos_desc),
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};
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