9d11900dc3
As seen previously, some toolchain are willing to insert padding at section changes to apply greater alignments by default. This is especially true with 64-bit builds. USB structures are marked with the packed attribute and therefore the linker section they land into must also be byte aligned. Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
62 lines
1.5 KiB
C
62 lines
1.5 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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#ifndef ZEPHYR_INCLUDE_USB_BOS_H_
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#define ZEPHYR_INCLUDE_USB_BOS_H_
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#if defined(CONFIG_USB_DEVICE_BOS)
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#define USB_DEVICE_BOS_DESC_DEFINE_HDR \
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static __in_section(usb, bos_desc_area, 0) __aligned(1) __used
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#define USB_DEVICE_BOS_DESC_DEFINE_CAP \
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static __in_section(usb, bos_desc_area, 1) __aligned(1) __used
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/* BOS descriptor type */
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#define DESCRIPTOR_TYPE_BOS 0x0F
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#define USB_BOS_CAPABILITY_PLATFORM 0x05
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/* BOS Capability Descriptor */
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struct usb_bos_platform_descriptor {
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u8_t bLength;
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u8_t bDescriptorType;
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u8_t bDevCapabilityType;
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u8_t bReserved;
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u8_t PlatformCapabilityUUID[16];
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} __packed;
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/* BOS Descriptor */
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struct usb_bos_descriptor {
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u8_t bLength;
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u8_t bDescriptorType;
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u16_t wTotalLength;
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u8_t bNumDeviceCaps;
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} __packed;
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/* BOS Capability webusb */
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struct usb_bos_capability_webusb {
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u16_t bcdVersion;
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u8_t bVendorCode;
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u8_t iLandingPage;
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} __packed;
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/* BOS Capability MS OS Descriptors version 2 */
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struct usb_bos_capability_msos {
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u32_t dwWindowsVersion;
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u16_t wMSOSDescriptorSetTotalLength;
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u8_t bMS_VendorCode;
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u8_t bAltEnumCode;
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} __packed;
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size_t usb_bos_get_length(void);
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void usb_bos_fix_total_length(void);
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void usb_bos_register_cap(struct usb_bos_platform_descriptor *hdr);
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const void *usb_bos_get_header(void);
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int usb_handle_bos(struct usb_setup_packet *setup, s32_t *len, u8_t **data);
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#else
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#define usb_handle_bos(x, y, z) -ENOTSUP
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#endif
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#endif /* ZEPHYR_INCLUDE_USB_BOS_H_ */
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