131abc56e1
The vboxvideo driver has been converted to the atomic modesetting API and all FIXME and TODO items have been fixed, so it is time to move it out of staging. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190304164724.10210-4-hdegoede@redhat.com
74 lines
2 KiB
C
74 lines
2 KiB
C
/* SPDX-License-Identifier: MIT */
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/* Copyright (C) 2006-2017 Oracle Corporation */
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#ifndef __HGSMI_DEFS_H__
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#define __HGSMI_DEFS_H__
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/* Buffer sequence type mask. */
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#define HGSMI_BUFFER_HEADER_F_SEQ_MASK 0x03
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/* Single buffer, not a part of a sequence. */
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#define HGSMI_BUFFER_HEADER_F_SEQ_SINGLE 0x00
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/* The first buffer in a sequence. */
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#define HGSMI_BUFFER_HEADER_F_SEQ_START 0x01
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/* A middle buffer in a sequence. */
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#define HGSMI_BUFFER_HEADER_F_SEQ_CONTINUE 0x02
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/* The last buffer in a sequence. */
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#define HGSMI_BUFFER_HEADER_F_SEQ_END 0x03
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/* 16 bytes buffer header. */
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struct hgsmi_buffer_header {
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u32 data_size; /* Size of data that follows the header. */
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u8 flags; /* HGSMI_BUFFER_HEADER_F_* */
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u8 channel; /* The channel the data must be routed to. */
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u16 channel_info; /* Opaque to the HGSMI, used by the channel. */
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union {
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/* Opaque placeholder to make the union 8 bytes. */
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u8 header_data[8];
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/* HGSMI_BUFFER_HEADER_F_SEQ_SINGLE */
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struct {
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u32 reserved1; /* A reserved field, initialize to 0. */
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u32 reserved2; /* A reserved field, initialize to 0. */
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} buffer;
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/* HGSMI_BUFFER_HEADER_F_SEQ_START */
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struct {
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/* Must be the same for all buffers in the sequence. */
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u32 sequence_number;
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/* The total size of the sequence. */
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u32 sequence_size;
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} sequence_start;
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/*
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* HGSMI_BUFFER_HEADER_F_SEQ_CONTINUE and
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* HGSMI_BUFFER_HEADER_F_SEQ_END
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*/
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struct {
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/* Must be the same for all buffers in the sequence. */
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u32 sequence_number;
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/* Data offset in the entire sequence. */
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u32 sequence_offset;
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} sequence_continue;
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} u;
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} __packed;
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/* 8 bytes buffer tail. */
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struct hgsmi_buffer_tail {
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/* Reserved, must be initialized to 0. */
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u32 reserved;
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/*
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* One-at-a-Time Hash: http://www.burtleburtle.net/bob/hash/doobs.html
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* Over the header, offset and for first 4 bytes of the tail.
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*/
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u32 checksum;
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} __packed;
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/*
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* The size of the array of channels. Array indexes are u8.
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* Note: the value must not be changed.
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*/
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#define HGSMI_NUMBER_OF_CHANNELS 0x100
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#endif
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