1131abc56SHans de Goede /* SPDX-License-Identifier: MIT */ 2131abc56SHans de Goede /* Copyright (C) 2006-2017 Oracle Corporation */ 3131abc56SHans de Goede 4131abc56SHans de Goede #ifndef __HGSMI_CHANNELS_H__ 5131abc56SHans de Goede #define __HGSMI_CHANNELS_H__ 6131abc56SHans de Goede 7131abc56SHans de Goede /* 8131abc56SHans de Goede * Each channel has an 8 bit identifier. There are a number of predefined 9131abc56SHans de Goede * (hardcoded) channels. 10131abc56SHans de Goede * 11131abc56SHans de Goede * HGSMI_CH_HGSMI channel can be used to map a string channel identifier 12131abc56SHans de Goede * to a free 16 bit numerical value. values are allocated in range 13131abc56SHans de Goede * [HGSMI_CH_STRING_FIRST;HGSMI_CH_STRING_LAST]. 14131abc56SHans de Goede */ 15131abc56SHans de Goede 16131abc56SHans de Goede /* A reserved channel value */ 17131abc56SHans de Goede #define HGSMI_CH_RESERVED 0x00 18131abc56SHans de Goede /* HGCMI: setup and configuration */ 19131abc56SHans de Goede #define HGSMI_CH_HGSMI 0x01 20131abc56SHans de Goede /* Graphics: VBVA */ 21131abc56SHans de Goede #define HGSMI_CH_VBVA 0x02 22131abc56SHans de Goede /* Graphics: Seamless with a single guest region */ 23131abc56SHans de Goede #define HGSMI_CH_SEAMLESS 0x03 24131abc56SHans de Goede /* Graphics: Seamless with separate host windows */ 25131abc56SHans de Goede #define HGSMI_CH_SEAMLESS2 0x04 26131abc56SHans de Goede /* Graphics: OpenGL HW acceleration */ 27131abc56SHans de Goede #define HGSMI_CH_OPENGL 0x05 28131abc56SHans de Goede 29131abc56SHans de Goede /* The first channel index to be used for string mappings (inclusive) */ 30131abc56SHans de Goede #define HGSMI_CH_STRING_FIRST 0x20 31131abc56SHans de Goede /* The last channel index for string mappings (inclusive) */ 32131abc56SHans de Goede #define HGSMI_CH_STRING_LAST 0xff 33131abc56SHans de Goede 34131abc56SHans de Goede #endif 35