| 1 | /* SPDX-License-Identifier: MIT */ |
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| 2 | /* Copyright (C) 2006-2017 Oracle Corporation */ |
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| 3 | |
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| 4 | #ifndef __HGSMI_CHANNELS_H__ |
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| 5 | #define __HGSMI_CHANNELS_H__ |
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| 6 | |
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| 7 | /* |
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| 8 | * Each channel has an 8 bit identifier. There are a number of predefined |
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| 9 | * (hardcoded) channels. |
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| 10 | * |
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| 11 | * HGSMI_CH_HGSMI channel can be used to map a string channel identifier |
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| 12 | * to a free 16 bit numerical value. values are allocated in range |
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| 13 | * [HGSMI_CH_STRING_FIRST;HGSMI_CH_STRING_LAST]. |
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| 14 | */ |
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| 15 | |
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| 16 | /* A reserved channel value */ |
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| 17 | #define HGSMI_CH_RESERVED 0x00 |
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| 18 | /* HGCMI: setup and configuration */ |
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| 19 | #define HGSMI_CH_HGSMI 0x01 |
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| 20 | /* Graphics: VBVA */ |
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| 21 | #define HGSMI_CH_VBVA 0x02 |
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| 22 | /* Graphics: Seamless with a single guest region */ |
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| 23 | #define HGSMI_CH_SEAMLESS 0x03 |
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| 24 | /* Graphics: Seamless with separate host windows */ |
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| 25 | #define HGSMI_CH_SEAMLESS2 0x04 |
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| 26 | /* Graphics: OpenGL HW acceleration */ |
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| 27 | #define HGSMI_CH_OPENGL 0x05 |
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| 28 | |
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| 29 | /* The first channel index to be used for string mappings (inclusive) */ |
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| 30 | #define HGSMI_CH_STRING_FIRST 0x20 |
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| 31 | /* The last channel index for string mappings (inclusive) */ |
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| 32 | #define HGSMI_CH_STRING_LAST 0xff |
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| 33 | |
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| 34 | #endif |
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| 35 | |
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