headers/private/graphics/vmware/DriverInterface.h

   1 /*
   2  * Copyright 1999, Be Incorporated.
   3  * Copyright 2007, Haiku.
   4  * Distributed under the terms of the MIT License.
   5  *
   6  * Authors:
   7  *              Be Incorporated
   8  *              Eric Petit <eric.petit@lapsus.org>
   9  *              Michael Pfeiffer <laplace@users.sourceforge.net>
  10  */
  11
  12 #ifndef DRIVERINTERFACE_H
  13 #define DRIVERINTERFACE_H
  14
  15 #include <GraphicsDefs.h>
  16 #include <Accelerant.h>
  17 #include <Drivers.h>
  18 #include <PCI.h>
  19 #include <OS.h>
  20
  21 #include "vm_device_version.h"
  22 #include "svga_reg.h"
  23
  24 #define MAX_SAMPLE_DEVICE_NAME_LENGTH   32
  25 #define CURSOR_ID                                               1
  26
  27
  28 /*--------------------------------------------------------------------*/
  29 /* Benaphores */
  30
  31 typedef struct {
  32         sem_id  sem;
  33         int32   ben;
  34 } Benaphore;
  35 #define INIT_BEN(x)             x.sem = create_sem(0, "VMware "#x); x.ben = 0;
  36 #define ACQUIRE_BEN(x)  if((atomic_add(&(x.ben), 1)) >= 1) acquire_sem(x.sem);
  37 #define RELEASE_BEN(x)  if((atomic_add(&(x.ben), -1)) > 1) release_sem(x.sem);
  38 #define DELETE_BEN(x)   delete_sem(x.sem);
  39
  40
  41 /*--------------------------------------------------------------------*/
  42 /* Utils */
  43
  44 #define ROUND_TO_PAGE_SIZE(x) (((x)+(B_PAGE_SIZE)-1)&~((B_PAGE_SIZE)-1))
  45
  46 static inline int
  47 BppForSpace(int space)
  48 {
  49         switch (space) {
  50                 case B_RGB32:
  51                         return 32;
  52                 case B_RGB24:
  53                         return 24;
  54                 case B_RGB16:
  55                         return 16;
  56                 case B_RGB15:
  57                         return 15;
  58                 case B_CMAP8:
  59                         return 8;
  60         }
  61         return 0;
  62 }
  63
  64
  65 /*--------------------------------------------------------------------*/
  66 /* Request codes for ioctl() */
  67
  68 enum {
  69         VMWARE_GET_PRIVATE_DATA = B_DEVICE_OP_CODES_END + 1,
  70         VMWARE_FIFO_START,
  71         VMWARE_FIFO_STOP,
  72         VMWARE_FIFO_SYNC,
  73         VMWARE_SET_MODE,
  74         VMWARE_SHOW_CURSOR,
  75         VMWARE_MOVE_CURSOR,
  76         VMWARE_GET_DEVICE_NAME,
  77         VMWARE_SET_PALETTE
  78 };
  79
  80
  81 /*--------------------------------------------------------------------*/
  82 /* Structure shared between the kernel driver and the accelerant */
  83
  84 typedef struct {
  85         /* Device info and capabilities */
  86         uint16                  vendorId;
  87         uint16                  deviceId;
  88         uint8                   revision;
  89         uint32                  maxWidth;
  90         uint32                  maxHeight;
  91         void                    *fbDma;
  92         uint32                  fbSize;
  93         void                    *fifoDma;
  94         uint32                  fifoSize;
  95         uint32                  fifoMin;
  96         uint32                  capabilities;
  97         uint32                  fifoCapabilities;
  98         uint32                  fifoFlags;
  99
 100         /* For registers access */
 101         uint16                  indexPort;
 102         uint16                  valuePort;
 103
 104         /* Mapped areas */
 105         area_id                 fbArea;
 106         void                    *fb;
 107         area_id                 fifoArea;
 108         void                    *fifo;
 109
 110         /* This changes when we switch to another mode */
 111         uint32                  fbOffset;
 112         uint32                  bytesPerRow;
 113
 114         /* Current display mode */
 115         display_mode    dm;
 116
 117         Benaphore               engineLock;
 118         Benaphore               fifoLock;
 119         uint32                  fifoNext;
 120
 121         /* Cursor state */
 122         bool                    cursorShow;
 123         uint16                  cursorX;
 124         uint16                  cursorY;
 125 } SharedInfo;
 126
 127 #endif