1/* SPDX-License-Identifier: MIT */
 2/* Copyright (C) 2006-2017 Oracle Corporation */
 3
 4#ifndef __HGSMI_CHANNELS_H__
 5#define __HGSMI_CHANNELS_H__
 6
 7/*
 8 * Each channel has an 8 bit identifier. There are a number of predefined
 9 * (hardcoded) channels.
10 *
11 * HGSMI_CH_HGSMI channel can be used to map a string channel identifier
12 * to a free 16 bit numerical value. values are allocated in range
13 * [HGSMI_CH_STRING_FIRST;HGSMI_CH_STRING_LAST].
14 */
15
16/* A reserved channel value */
17#define HGSMI_CH_RESERVED				0x00
18/* HGCMI: setup and configuration */
19#define HGSMI_CH_HGSMI					0x01
20/* Graphics: VBVA */
21#define HGSMI_CH_VBVA					0x02
22/* Graphics: Seamless with a single guest region */
23#define HGSMI_CH_SEAMLESS				0x03
24/* Graphics: Seamless with separate host windows */
25#define HGSMI_CH_SEAMLESS2				0x04
26/* Graphics: OpenGL HW acceleration */
27#define HGSMI_CH_OPENGL					0x05
28
29/* The first channel index to be used for string mappings (inclusive) */
30#define HGSMI_CH_STRING_FIRST				0x20
31/* The last channel index for string mappings (inclusive) */
32#define HGSMI_CH_STRING_LAST				0xff
33
34#endif