joystick_linuxinput.c

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      return DIERR_INVALIDPARAM;
  }

    if (len)
      TRACE("Application retrieving %ld event(s).\n", len);

    *entries = 0;
    nqtail = This->queue_tail;
    while (len) {
      /* Copy the buffered data into the application queue */
      memcpy((char *)dod + *entries * dodsize, This->data_queue + nqtail, dodsize);
      /* Advance position */
      nqtail++;
      if (nqtail >= This->queue_len)
        nqtail -= This->queue_len;
      (*entries)++;
      len--;
    }
  }

  if (This->overflow) {
    hr = DI_BUFFEROVERFLOW;
    if (!(flags & DIGDD_PEEK)) {
      This->overflow = FALSE;
    }
  }

  if (!(flags & DIGDD_PEEK))
    This->queue_tail = nqtail;

  return hr;
}

/******************************************************************************
  *     SetProperty : change input device properties
  */
static HRESULT WINAPI JoystickAImpl_SetProperty(LPDIRECTINPUTDEVICE8A iface,
					    REFGUID rguid,
					    LPCDIPROPHEADER ph)
{
  JoystickImpl *This = (JoystickImpl *)iface;

  if (!ph) {
    WARN("invalid argument\n");
    return DIERR_INVALIDPARAM;
  }

  TRACE("(this=%p,%s,%p)\n",This,debugstr_guid(rguid),ph);
  TRACE("ph.dwSize = %ld, ph.dwHeaderSize =%ld, ph.dwObj = %ld, ph.dwHow= %ld\n",ph->dwSize, ph->dwHeaderSize,ph->dwObj,ph->dwHow);

  if (!HIWORD(rguid)) {
    switch (LOWORD(rguid)) {
    case (DWORD) DIPROP_BUFFERSIZE: {
      LPCDIPROPDWORD	pd = (LPCDIPROPDWORD)ph;

      TRACE("buffersize = %ld\n",pd->dwData);
      if (This->data_queue) {
        This->data_queue = HeapReAlloc(GetProcessHeap(),0, This->data_queue, pd->dwData * sizeof(DIDEVICEOBJECTDATA));
      } else {
        This->data_queue = HeapAlloc(GetProcessHeap(),0, pd->dwData * sizeof(DIDEVICEOBJECTDATA));
      }
      This->queue_head = 0;
      This->queue_tail = 0;
      This->queue_len  = pd->dwData;
      break;
    }
    case (DWORD)DIPROP_RANGE: {
      LPCDIPROPRANGE	pr = (LPCDIPROPRANGE)ph;

      if (ph->dwHow == DIPH_DEVICE) {
        int i;
        TRACE("proprange(%ld,%ld) all\n",pr->lMin,pr->lMax);
        for (i = 0; i < This->df->dwNumObjs; i++) {
          This->wantmin[i] = pr->lMin;
          This->wantmax[i] = pr->lMax;
        }
      } else {
        int obj = find_property_offset(This, ph);
        TRACE("proprange(%ld,%ld) obj=%d\n",pr->lMin,pr->lMax,obj);
        if (obj >= 0) {
          This->wantmin[obj] = pr->lMin;
          This->wantmax[obj] = pr->lMax;
        }
      }
      return DI_OK;
    }
    case (DWORD)DIPROP_DEADZONE: {
      LPCDIPROPDWORD	pd = (LPCDIPROPDWORD)ph;
      if (ph->dwHow == DIPH_DEVICE) {
        int i;
        TRACE("deadzone(%ld) all\n",pd->dwData);
        for (i = 0; i < This->df->dwNumObjs; i++) {
          This->deadz[i] = pd->dwData;
        }
      } else {
        int obj = find_property_offset(This, ph);
        TRACE("deadzone(%ld) obj=%d\n",pd->dwData,obj);
        if (obj >= 0) {
          This->deadz[obj] = pd->dwData;
        }
      }
      return DI_OK;
    }
    default:
      FIXME("Unknown type %p (%s)\n",rguid,debugstr_guid(rguid));
      break;
    }
  }
  fake_current_js_state(This);
  return 0;
}

/******************************************************************************
  *     SetEventNotification : specifies event to be sent on state change
  */
static HRESULT WINAPI JoystickAImpl_SetEventNotification(
	LPDIRECTINPUTDEVICE8A iface, HANDLE hnd
) {
    JoystickImpl *This = (JoystickImpl *)iface;

    TRACE("(this=%p,%p)\n",This,hnd);
    This->hEvent = hnd;
    return DI_OK;
}

static HRESULT WINAPI JoystickAImpl_GetCapabilities(
	LPDIRECTINPUTDEVICE8A iface,
	LPDIDEVCAPS lpDIDevCaps)
{
    JoystickImpl *This = (JoystickImpl *)iface;
    int		xfd = This->joyfd;
    int		i,axes,buttons;

    TRACE("%p->(%p)\n",iface,lpDIDevCaps);

    if (!lpDIDevCaps) {
	WARN("invalid pointer\n");
	return E_POINTER;
    }

    if (lpDIDevCaps->dwSize != sizeof(DIDEVCAPS)) {
        WARN("invalid argument\n");
        return DIERR_INVALIDPARAM;
    }

    if (xfd==-1) {
	/* yes, games assume we return something, even if unacquired */
	JoystickAImpl_Acquire(iface);
    }

    lpDIDevCaps->dwFlags	= DIDC_ATTACHED;
    if (This->dinput->dwVersion >= 0x0800)
        lpDIDevCaps->dwDevType = DI8DEVTYPE_JOYSTICK | (DI8DEVTYPEJOYSTICK_STANDARD << 8);
    else
        lpDIDevCaps->dwDevType = DIDEVTYPE_JOYSTICK | (DIDEVTYPEJOYSTICK_TRADITIONAL << 8);

    axes=0;
    for (i=0;i<ABS_MAX;i++) if (test_bit(This->absbits,i)) axes++;
    buttons=0;
    for (i=0;i<KEY_MAX;i++) if (test_bit(This->keybits,i)) buttons++;

    if (This->has_ff) 
	 lpDIDevCaps->dwFlags |= DIDC_FORCEFEEDBACK;

    lpDIDevCaps->dwAxes = axes;
    lpDIDevCaps->dwButtons = buttons;

    if (xfd==-1) {
      JoystickAImpl_Unacquire(iface);
    }

    return DI_OK;
}

static HRESULT WINAPI JoystickAImpl_Poll(LPDIRECTINPUTDEVICE8A iface) {
    JoystickImpl *This = (JoystickImpl *)iface;
    TRACE("(%p)\n",This);

    if (This->joyfd==-1) {
      return DIERR_NOTACQUIRED;
    }

    joy_polldev(This);
    return DI_OK;
}

/******************************************************************************
  *     EnumObjects : enumerate the different buttons and axis...
  */
static HRESULT WINAPI JoystickAImpl_EnumObjects(
	LPDIRECTINPUTDEVICE8A iface,
	LPDIENUMDEVICEOBJECTSCALLBACKA lpCallback,
	LPVOID lpvRef,
	DWORD dwFlags)
{
  JoystickImpl *This = (JoystickImpl *)iface;
  DIDEVICEOBJECTINSTANCEA ddoi;
  int xfd = This->joyfd;

  TRACE("(this=%p,%p,%p,%08lx)\n", This, lpCallback, lpvRef, dwFlags);
  if (TRACE_ON(dinput)) {
    TRACE("  - flags = ");
    _dump_EnumObjects_flags(dwFlags);
    TRACE("\n");
  }

  /* We need to work even if we're not yet acquired */
  if (xfd == -1)
    IDirectInputDevice8_Acquire(iface);

  /* Only the fields till dwFFMaxForce are relevant */
  ddoi.dwSize = FIELD_OFFSET(DIDEVICEOBJECTINSTANCEA, dwFFMaxForce);

  /* For the joystick, do as is done in the GetCapabilities function */
  /* FIXME: needs more items */
  if ((dwFlags == DIDFT_ALL) ||
      (dwFlags & DIDFT_AXIS)) {
    BYTE i;

    for (i = 0; i < ABS_MAX; i++) {
      if (!test_bit(This->absbits,i)) continue;

      switch (i) {
      case ABS_X:
	ddoi.guidType = GUID_XAxis;
	ddoi.dwOfs = DIJOFS_X;
	break;
      case ABS_Y:
	ddoi.guidType = GUID_YAxis;
	ddoi.dwOfs = DIJOFS_Y;
	break;
      case ABS_Z:
	ddoi.guidType = GUID_ZAxis;
	ddoi.dwOfs = DIJOFS_Z;
	break;
      case ABS_RX:
	ddoi.guidType = GUID_RxAxis;
	ddoi.dwOfs = DIJOFS_RX;
	break;
      case ABS_RY:
	ddoi.guidType = GUID_RyAxis;
	ddoi.dwOfs = DIJOFS_RY;
	break;
      case ABS_RZ:
	ddoi.guidType = GUID_RzAxis;
	ddoi.dwOfs = DIJOFS_RZ;
	break;
      case ABS_THROTTLE:
	ddoi.guidType = GUID_Slider;
	ddoi.dwOfs = DIJOFS_SLIDER(0);
	break;
      case ABS_RUDDER:
	ddoi.guidType = GUID_Slider;
	ddoi.dwOfs = DIJOFS_SLIDER(1);
	break;
      default:
	FIXME("unhandled abs axis %d, ignoring!\n",i);
      }
      ddoi.dwType = DIDFT_MAKEINSTANCE((1<<i) << WINE_JOYSTICK_AXIS_BASE) | DIDFT_ABSAXIS;
      /* Linux event force feedback supports only (and always) x and y axes */
      if (i == ABS_X || i == ABS_Y) {
	if (This->has_ff)
	  ddoi.dwFlags |= DIDOI_FFACTUATOR;
      }
      sprintf(ddoi.tszName, "%d-Axis", i);
      _dump_OBJECTINSTANCEA(&ddoi);
      if (lpCallback(&ddoi, lpvRef) != DIENUM_CONTINUE) {
	/* return to unaquired state if that's where we were */
	if (xfd == -1)
	  IDirectInputDevice8_Unacquire(iface);
	return DI_OK;
      }
    }
  }

  if ((dwFlags == DIDFT_ALL) ||
      (dwFlags & DIDFT_BUTTON)) {
    int i;

    /*The DInput SDK says that GUID_Button is only for mouse buttons but well*/

    ddoi.guidType = GUID_Button;

    for (i = 0; i < KEY_MAX; i++) {
      if (!test_bit(This->keybits,i)) continue;

      switch (i) {
      case BTN_TRIGGER:
      case BTN_A:
      case BTN_1:
	  ddoi.dwOfs = DIJOFS_BUTTON(0);
	  ddoi.dwType = DIDFT_MAKEINSTANCE((0x0001 << 0) << WINE_JOYSTICK_BUTTON_BASE) | DIDFT_PSHBUTTON;
	  break;
	case BTN_THUMB:
	case BTN_B:
	case BTN_2:
	  ddoi.dwOfs = DIJOFS_BUTTON(1);
	  ddoi.dwType = DIDFT_MAKEINSTANCE((0x0001 << 1) << WINE_JOYSTICK_BUTTON_BASE) | DIDFT_PSHBUTTON;
	  break;
	case BTN_THUMB2:
	case BTN_C:
	case BTN_3:
	  ddoi.dwOfs = DIJOFS_BUTTON(2);
	  ddoi.dwType = DIDFT_MAKEINSTANCE((0x0001 << 2) << WINE_JOYSTICK_BUTTON_BASE) | DIDFT_PSHBUTTON;
	  break;
	case BTN_TOP:
	case BTN_X:
	case BTN_4:
	  ddoi.dwOfs = DIJOFS_BUTTON(3);
	  ddoi.dwType = DIDFT_MAKEINSTANCE((0x0001 << 3) << WINE_JOYSTICK_BUTTON_BASE) | DIDFT_PSHBUTTON;
	  break;
	case BTN_TOP2:
	case BTN_Y:
	case BTN_5:
	  ddoi.dwOfs = DIJOFS_BUTTON(4);
	  ddoi.dwType = DIDFT_MAKEINSTANCE((0x0001 << 4) << WINE_JOYSTICK_BUTTON_BASE) | DIDFT_PSHBUTTON;
	  break;
	case BTN_PINKIE:
	case BTN_Z:
	case BTN_6:
	  ddoi.dwOfs = DIJOFS_BUTTON(5);
	  ddoi.dwType = DIDFT_MAKEINSTANCE((0x0001 << 5) << WINE_JOYSTICK_BUTTON_BASE) | DIDFT_PSHBUTTON;
	  break;
	case BTN_BASE:
	case BTN_TL:
	case BTN_7:
	  ddoi.dwOfs = DIJOFS_BUTTON(6);
	  ddoi.dwType = DIDFT_MAKEINSTANCE((0x0001 << 6) << WINE_JOYSTICK_BUTTON_BASE) | DIDFT_PSHBUTTON;
	  break;
	case BTN_BASE2:
	case BTN_TR:
	case BTN_8:
	  ddoi.dwOfs = DIJOFS_BUTTON(7);
	  ddoi.dwType = DIDFT_MAKEINSTANCE((0x0001 << 7) << WINE_JOYSTICK_BUTTON_BASE) | DIDFT_PSHBUTTON;
	  break;
	case BTN_BASE3:
	case BTN_TL2:
	case BTN_9:
	  ddoi.dwOfs = DIJOFS_BUTTON(8);
	  ddoi.dwType = DIDFT_MAKEINSTANCE((0x0001 << 8) << WINE_JOYSTICK_BUTTON_BASE) | DIDFT_PSHBUTTON;
	  break;
	case BTN_BASE4:
	case BTN_TR2:
	  ddoi.dwOfs = DIJOFS_BUTTON(9);
	  ddoi.dwType = DIDFT_MAKEINSTANCE((0x0001 << 9) << WINE_JOYSTICK_BUTTON_BASE) | DIDFT_PSHBUTTON;
	  break;
	case BTN_BASE5:
	case BTN_SELECT:
	  ddoi.dwOfs = DIJOFS_BUTTON(10);
	  ddoi.dwType = DIDFT_MAKEINSTANCE((0x0001 << 10) << WINE_JOYSTICK_BUTTON_BASE) | DIDFT_PSHBUTTON;
	  break;
      }
      sprintf(ddoi.tszName, "%d-Button", i);
      _dump_OBJECTINSTANCEA(&ddoi);
      if (lpCallback(&ddoi, lpvRef) != DIENUM_CONTINUE) {
	/* return to unaquired state if that's where we were */
	if (xfd == -1)
	  IDirectInputDevice8_Unacquire(iface);
	return DI_OK;
      }
    }
  }

  /* return to unaquired state if that's where we were */
  if (xfd == -1)
    IDirectInputDevice8_Unacquire(iface);

  return DI_OK;
}

static HRESULT WINAPI JoystickWImpl_EnumObjects(LPDIRECTINPUTDEVICE8W iface,
						LPDIENUMDEVICEOBJECTSCALLBACKW lpCallback,
						LPVOID lpvRef,
						DWORD dwFlags)
{
  JoystickImpl *This = (JoystickImpl *)iface;

  device_enumobjects_AtoWcb_data data;

  data.lpCallBack = lpCallback;
  data.lpvRef = lpvRef;

  return JoystickAImpl_EnumObjects((LPDIRECTINPUTDEVICE8A) This, (LPDIENUMDEVICEOBJECTSCALLBACKA) DIEnumDevicesCallbackAtoW, (LPVOID) &data, dwFlags);
}

/******************************************************************************
  *     GetProperty : get input device properties
  */
static HRESULT WINAPI JoystickAImpl_GetProperty(LPDIRECTINPUTDEVICE8A iface,
						REFGUID rguid,
						LPDIPROPHEADER pdiph)
{
  JoystickImpl *This = (JoystickImpl *)iface;

  TRACE("(this=%p,%s,%p)\n",
	iface, debugstr_guid(rguid), pdiph);

  if (TRACE_ON(dinput))
    _dump_DIPROPHEADER(pdiph);

  if (!HIWORD(rguid)) {
    switch (LOWORD(rguid)) {
    case (DWORD) DIPROP_BUFFERSIZE: {
      LPDIPROPDWORD	pd = (LPDIPROPDWORD)pdiph;

      TRACE(" return buffersize = %d\n",This->queue_len);
      pd->dwData = This->queue_len;
      break;
    }

    case (DWORD) DIPROP_RANGE: {
      /* LPDIPROPRANGE pr = (LPDIPROPRANGE) pdiph; */
      if ((pdiph->dwHow == DIPH_BYID) &&
	  (pdiph->dwObj & DIDFT_ABSAXIS)) {
	/* The app is querying the current range of the axis : return the lMin and lMax values */
	FIXME("unimplemented axis range query.\n");
      }

      break;
    }

    default:
      FIXME("Unknown type %p (%s)\n",rguid,debugstr_guid(rguid));
      break;
    }
  }


  return DI_OK;
}

/****************************************************************************** 
  *	CreateEffect - Create a new FF effect with the specified params