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      1 /*
      2  * Copyright 1999-2006 by VMware, Inc.
      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  * Except as contained in this notice, the name of the copyright holder(s)
     23  * and author(s) shall not be used in advertising or otherwise to promote
     24  * the sale, use or other dealings in this Software without prior written
     25  * authorization from the copyright holder(s) and author(s).
     26  */
     27 
     28 /*
     29  * vmmouse_proto.h --
     30  *
     31  *      The communication protocol between the guest and the vmmouse
     32  *      virtual device.
     33  */
     34 
     35 
     36 #ifndef _VMMOUSE_PROTO_H_
     37 #define _VMMOUSE_PROTO_H_
     38 
     39 #include <stdint.h>
     40 
     41 #ifdef HAVE_XORG_SERVER_1_1_0
     42 #include <unistd.h>
     43 #else
     44 #include "xf86_libc.h"
     45 #endif
     46 
     47 /* Map Solaris/Sun compiler #defines to gcc equivalents */
     48 #if !defined __i386__ && defined __i386
     49 # define __i386__
     50 #endif
     51 
     52 #if !defined __x86_64__ && defined __amd64
     53 # define __x86_64__
     54 #endif
     55 
     56 #if !defined __i386__ && !defined __x86_64__
     57 #error The vmmouse protocol is only supported on x86 architectures.
     58 #endif
     59 
     60 #define VMMOUSE_PROTO_MAGIC 0x564D5868
     61 #define VMMOUSE_PROTO_PORT 0x5658
     62 
     63 #define VMMOUSE_PROTO_CMD_GETVERSION		10
     64 #define VMMOUSE_PROTO_CMD_ABSPOINTER_DATA	39
     65 #define VMMOUSE_PROTO_CMD_ABSPOINTER_STATUS	40
     66 #define VMMOUSE_PROTO_CMD_ABSPOINTER_COMMAND	41
     67 #define VMMOUSE_PROTO_CMD_ABSPOINTER_RESTRICT   86
     68 
     69 #define DECLARE_REG32_STRUCT(_r) \
     70    union { \
     71       struct { \
     72          uint16_t low; \
     73          uint16_t high; \
     74       } vE##_r##_; \
     75       uint32_t vE##_r; \
     76    }
     77 
     78 #ifdef __x86_64__
     79 
     80 #define DECLARE_REG64_STRUCT(_r) \
     81    union { \
     82       DECLARE_REG32_STRUCT(_r); \
     83       struct { \
     84          uint32_t low; \
     85          uint32_t high; \
     86       } vR##_r##_; \
     87       uint64_t vR##_r; \
     88    }
     89 
     90 #define DECLARE_REG_STRUCT(x) DECLARE_REG64_STRUCT(x)
     91 
     92 #else
     93 
     94 #define DECLARE_REG_STRUCT(x) DECLARE_REG32_STRUCT(x)
     95 
     96 #endif
     97 
     98 typedef union {
     99    struct {
    100       union {
    101          uint32_t magic;
    102          DECLARE_REG_STRUCT(ax);
    103       };
    104       union {
    105          size_t size;
    106          DECLARE_REG_STRUCT(bx);
    107       };
    108       union {
    109          uint16_t command;
    110          DECLARE_REG_STRUCT(cx);
    111       };
    112       union {
    113          uint16_t port;
    114          DECLARE_REG_STRUCT(dx);
    115       };
    116       DECLARE_REG_STRUCT(si);
    117       DECLARE_REG_STRUCT(di);
    118    } in;
    119    struct {
    120       DECLARE_REG_STRUCT(ax);
    121       DECLARE_REG_STRUCT(bx);
    122       DECLARE_REG_STRUCT(cx);
    123       DECLARE_REG_STRUCT(dx);
    124       DECLARE_REG_STRUCT(si);
    125       DECLARE_REG_STRUCT(di);
    126    } out;
    127 } VMMouseProtoCmd;
    128 
    129 
    130 void
    131 VMMouseProto_SendCmd(VMMouseProtoCmd *cmd); // IN/OUT
    132 
    133 
    134 #undef DECLARE_REG_STRUCT
    135 
    136 #endif /* _VMMOUSE_PROTO_H_ */
    137