rom/devs/gameport/gameport_intern.h

   1 /*
   2     Copyright © 1995-2010, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc:
   6     Lang: English
   7 */
   8
   9 #ifndef  GAMEPORT_INTERN_H
  10 #define  GAMEPORT_INTERN_H
  11
  12 #include <exec/types.h>
  13 #include <exec/devices.h>
  14 #include <exec/semaphores.h>
  15 #include <exec/interrupts.h>
  16 #include <exec/devices.h>
  17
  18 #include <oop/oop.h>
  19 #include <devices/gameport.h>
  20
  21 /* Must always be a multiple of 4 since one event consists of code, x, y and flags */
  22
  23 #define  GP_NUMELEMENTS         (100 * 4)
  24 #define  GP_BUFFERSIZE          (sizeof (WORD) * GP_NUMELEMENTS)
  25
  26 #define  GP_NUNITS              2 /* Number of units supported by gameport.device */
  27
  28 #define  GP_MAXUNIT             1 /* Highest possible gameport unit */
  29
  30 struct GameportBase
  31 {
  32     struct Device               gp_device;
  33     struct Library              *gp_MouseHiddBase;
  34
  35     struct MinList              gp_PendingQueue;        /* IOrequests (GPD_READEVENT)
  36                                                            not done quick */
  37     struct SignalSemaphore      gp_QueueLock;
  38     struct SignalSemaphore      gp_Lock;
  39
  40     struct Interrupt            gp_Interrupt;           /* Interrupt to invoke in case of
  41                                                            keypress (or releases) and there
  42                                                            are pending requests */
  43     struct Interrupt            gp_VBlank;              /* Gameport VBlank server */
  44
  45     WORD                        *gp_eventBuffer;
  46     UWORD                       gp_writePos;
  47
  48     ULONG                       gp_nTicks;              /* Bookkeeping of frames */
  49
  50     OOP_Object                  *gp_Hidd;               /* Hidd object to use */
  51
  52     UBYTE                       gp_cTypes[GP_NUNITS];
  53
  54     OOP_AttrBase                HiddMouseAB_;
  55 };
  56
  57 #ifdef HiddMouseAB
  58 #undef HiddMouseAB
  59 #endif
  60 #define HiddMouseAB (GPBase->HiddMouseAB_)
  61
  62 typedef struct GPUnit
  63 {
  64     UWORD                       gpu_readPos;            /* Position in the key buffer */
  65     UWORD                       gpu_Qualifiers;         /* Known qualifiers at this moment */
  66
  67     UWORD                       gpu_unitNum;
  68     UBYTE                       gpu_flags;              /* For unit flags definitions, see below */
  69
  70     WORD                        gpu_lastX;
  71     WORD                        gpu_lastY;
  72
  73     struct GamePortTrigger      gpu_trigger;
  74 } GPUnit;
  75
  76 #define GBUB_PENDING            0                       /* Unit has pending request for gameport
  77                                                            events */
  78 #define GBUF_PENDING            0x01
  79
  80 #endif /* GAMEPORT_INTERN_H */