rom/devs/keyboard/keyboard_intern.h

   1 #ifndef  KEYBOARD_INTERN_H
   2 #define  KEYBOARD_INTERN_H
   3
   4 /*
   5     Copyright © 1995-2006, The AROS Development Team. All rights reserved.
   6     $Id$
   7
   8     Desc:
   9     Lang: English
  10 */
  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
  20 #define KB_MAXKEYS     256
  21 #define KB_MATRIXSIZE  (KB_MAXKEYS/(sizeof(UBYTE)*8))
  22
  23 #define KB_BUFFERSIZE  128
  24
  25 struct KeyboardBase
  26 {
  27     struct Device      kb_device;
  28     struct Library    *kb_LowLevelBase;
  29
  30     struct MinList          kb_PendingQueue;  /* IOrequests (KBD_READEVENT) not done quick */
  31     struct SignalSemaphore  kb_QueueLock;
  32     struct MinList          kb_ResetHandlerList;
  33
  34     struct Interrupt  kb_Interrupt;     /* Interrupt to invoke in case of keypress (or
  35                                            releases) and there are pending requests */
  36     APTR    kb_kbIrqHandle;             /* Handle from AddKBInt() */
  37
  38     UWORD   kb_nHandlers;               /* Number of reset handlers added */
  39     UWORD  *kb_keyBuffer;
  40     UWORD   kb_writePos;
  41     BOOL    kb_ResetPhase;              /* True if reset has begun */
  42     UBYTE  *kb_Matrix;
  43
  44     OOP_Object     *kb_Hidd;            /* Hidd object to use */
  45     struct Library *kb_OOPBase;
  46
  47     OOP_AttrBase    HiddKbdAB_;
  48 };
  49
  50
  51 typedef struct KBUnit
  52 {
  53     UWORD  kbu_readPos;         /* Position in the key buffer */
  54     UWORD  kbu_Qualifiers;      /* Known qualifiers at this moment */
  55     UWORD  kbu_LastCode;        /* Previous rawkey code */
  56     UBYTE  kbu_LastQuals;       /* Lower half of previous qualifiers */
  57     UWORD  kbu_LastLastCode;    /* The rawkey code two keys ago... */
  58     UBYTE  kbu_LastLastQuals;   /* ...and the lower half of qualifiers
  59                                    associated with that code */
  60
  61     /* Note: The xxxQuals is UBYTE for now. They may be UWORDS at a later
  62              implementation but as we want to be binary compatible,
  63              we just store UBYTEs in the InputEvent. This goes for
  64              deadkey handling too, but as it is a fact that keycodes will
  65              be UWORDS here in the future, it's so now. Regarding the
  66              qualifiers, it may be enough with 8. */
  67
  68     UBYTE  kbu_flags;           /* For unit flags definitions, see below */
  69 } KBUnit;
  70
  71 #define KBUB_PENDING 0          /* Unit has pending request for keyevents */
  72
  73 #define KBUF_PENDING 0x01
  74
  75 #define HiddKbdAB KBBase->HiddKbdAB_
  76
  77 #endif /* KEYBOARD_INTERN_H */
  78