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GitHub Repository: orangepi-xunlong/orangepi-build
 Path: blob/next/external/cache/sources/wl/include/bcmusb.h
Views: 3959
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/*

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 * Broadcom USB/HSIC framing

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 * Software-specific framing definitions shared between host and device

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 *

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 * $Copyright Open 2012 Broadcom Corporation$

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 *

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 * $Id: bcmusb.h 281591 2012-09-02 18:43:02Z sgsiener $

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 */

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#ifndef	_bcmusb_h_

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#define	_bcmusb_h_

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/*

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 * Software-defined USB frame header

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 */

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#ifdef USB_FRAME_HEADER

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#define USBF_HEADER_LEN		16

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#else

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#define USBF_HEADER_LEN		0

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#endif

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#ifdef USBF_CKSUM_OVER_FRAME

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#define USBF_DEF_CKSUM_LEN 0

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#else

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#define USBF_DEF_CKSUM_LEN USBF_HEADER_LEN

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#endif

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/* Current protocol version */

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#define USBF_PROT_VERSION	1

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/* ----- first 32-bit word ----- */

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/* 4-bit version field */

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#define USBF_VER_MASK			0x0000000f

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/* 8-bit flags field */

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#define USBF_FLAGS_MASK			0x00000ff0

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#define USBF_FLAGS_SHIFT		4

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/* flags field definitions */

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#define USBF_FLAGS_TIMESTAMPED	0x01	/* frame header includes timestamp */

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#define USBF_FLAGS_FRAME_EVENT	0x02	/* set when frame contains an Event indication */

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#define USBF_FLAGS_FRAME_CKSUM	0x04	/* set when cksum is over entire frame */

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/* 3-bit channel identifier field */

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#define USBF_CHAN_MASK			0x00007000

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#define USBF_CHAN_SHIFT			12

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#define USBF_CHAN_CONTROL		0

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#define USBF_CHAN_INTERRUPT		1

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#define USBF_CHAN_DATAEVENT		2

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/* used by host & device to disambiguate frames with this header from ones without */

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#define USBF_TAG			0x00008000 /* bit won't appear in bdc/ioctl header */

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/* 16-bit checksum */

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#define USBF_CHECKSUM_MASK		0xffff0000	/* checksum mask */

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#define USBF_CHECKSUM_SHIFT		16

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/* ----- second 32-bit word ----- */

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/* 16-bit length */

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#define USBF_LENGTH_MASK		0x0000ffff	/* length mask */

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/* 16-bit sequence number */

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#define USBF_SEQNUM_MASK		0xffff0000	/* sequence number mask */

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#define USBF_SEQSUM_SHIFT		16

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/* ----- third 32-bit word ----- */

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/* 32-bit timestamp */

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#define USBF_TIMESTAMP_MASK		0xffffffff	/* timestamp value mask */

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/* ----- fourth 32-bit word ----- */

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/* reserve 32 bits for future use */

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#define USBF_RESERVED_MASK		0xffffffff	/* reserved for future use mask */

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#endif	/* _bcmusb_h_ */

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