drivers/staging/vboxvideo/hgsmi_channels.h

   1 /*
   2  * Copyright (C) 2006-2017 Oracle Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  */
  22
  23 #ifndef __HGSMI_CHANNELS_H__
  24 #define __HGSMI_CHANNELS_H__
  25
  26 /*
  27  * Each channel has an 8 bit identifier. There are a number of predefined
  28  * (hardcoded) channels.
  29  *
  30  * HGSMI_CH_HGSMI channel can be used to map a string channel identifier
  31  * to a free 16 bit numerical value. values are allocated in range
  32  * [HGSMI_CH_STRING_FIRST;HGSMI_CH_STRING_LAST].
  33  */
  34
  35 /* A reserved channel value */
  36 #define HGSMI_CH_RESERVED                               0x00
  37 /* HGCMI: setup and configuration */
  38 #define HGSMI_CH_HGSMI                                  0x01
  39 /* Graphics: VBVA */
  40 #define HGSMI_CH_VBVA                                   0x02
  41 /* Graphics: Seamless with a single guest region */
  42 #define HGSMI_CH_SEAMLESS                               0x03
  43 /* Graphics: Seamless with separate host windows */
  44 #define HGSMI_CH_SEAMLESS2                              0x04
  45 /* Graphics: OpenGL HW acceleration */
  46 #define HGSMI_CH_OPENGL                                 0x05
  47
  48 /* The first channel index to be used for string mappings (inclusive) */
  49 #define HGSMI_CH_STRING_FIRST                           0x20
  50 /* The last channel index for string mappings (inclusive) */
  51 #define HGSMI_CH_STRING_LAST                            0xff
  52
  53 #endif