Sweden-Number/dlls/dinput/joystick_linuxinput.c

/*		DirectInput Joystick device
 *
 * Copyright 1998,2000 Marcus Meissner
 * Copyright 1998,1999 Lionel Ulmer
 * Copyright 2000-2001 TransGaming Technologies Inc.
 * Copyright 2005 Daniel Remenak
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

#include "config.h"
#include "wine/port.h"

#include <assert.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
#include <sys/fcntl.h>
#ifdef HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
#endif
#include <errno.h>
#ifdef HAVE_SYS_ERRNO_H
# include <sys/errno.h>
#endif
#ifdef HAVE_LINUX_INPUT_H
# include <linux/input.h>
# if defined(EVIOCGBIT) && defined(EV_ABS) && defined(BTN_PINKIE)
#  define HAVE_CORRECT_LINUXINPUT_H
# endif
#endif

#include "wine/debug.h"
#include "wine/unicode.h"
#include "windef.h"
#include "winbase.h"
#include "winerror.h"
#include "dinput.h"

#include "dinput_private.h"
#include "device_private.h"

WINE_DEFAULT_DEBUG_CHANNEL(dinput);

#ifdef HAVE_CORRECT_LINUXINPUT_H

#define EVDEVPREFIX	"/dev/input/event"

/* Wine joystick driver object instances */
#define WINE_JOYSTICK_AXIS_BASE   0
#define WINE_JOYSTICK_POV_BASE    6
#define WINE_JOYSTICK_BUTTON_BASE 8

typedef struct EffectListItem EffectListItem;
struct EffectListItem
{
        LPDIRECTINPUTEFFECT ref;
	struct EffectListItem* next;
};

/* implemented in effect_linuxinput.c */
HRESULT linuxinput_create_effect(int* fd, REFGUID rguid, LPDIRECTINPUTEFFECT* peff);
HRESULT linuxinput_get_info_A(int fd, REFGUID rguid, LPDIEFFECTINFOA info);
HRESULT linuxinput_get_info_W(int fd, REFGUID rguid, LPDIEFFECTINFOW info);

typedef struct JoystickImpl JoystickImpl;
static const IDirectInputDevice8AVtbl JoystickAvt;
static const IDirectInputDevice8WVtbl JoystickWvt;
struct JoystickImpl
{
        const void                     *lpVtbl;
        LONG                            ref;
        GUID                            guid;


	/* The 'parent' DInput */
	IDirectInputImpl               *dinput;

	/* joystick private */
	/* what range and deadzone the game wants */
	LONG				wantmin[ABS_MAX];
	LONG				wantmax[ABS_MAX];
	LONG				deadz[ABS_MAX];

	/* autodetecting ranges per axe by following movement */
	LONG				havemax[ABS_MAX];
	LONG				havemin[ABS_MAX];

	int				joyfd;

	LPDIDATAFORMAT			df;
        HANDLE				hEvent;
        LPDIDEVICEOBJECTDATA 		data_queue;
        int				queue_head, queue_tail, queue_len;
	BOOL				overflow;
	DIJOYSTATE2			js;

	/* Force feedback variables */
	BOOL				has_ff;
	int				num_effects;
	EffectListItem*			top_effect;
	int				ff_state;

	/* data returned by the EVIOCGABS() ioctl */
	int				axes[ABS_MAX][5];
	/* LUT for KEY_ to offset in rgbButtons */
	BYTE				buttons[KEY_MAX];

#define AXE_ABS		0
#define AXE_ABSMIN	1
#define AXE_ABSMAX	2
#define AXE_ABSFUZZ	3
#define AXE_ABSFLAT	4


	/* data returned by EVIOCGBIT for caps, EV_ABS, EV_KEY, and EV_FF */
	BYTE				evbits[(EV_MAX+7)/8];
	BYTE				absbits[(ABS_MAX+7)/8];
	BYTE				keybits[(KEY_MAX+7)/8];
	BYTE				ffbits[(FF_MAX+7)/8];	
};

/* This GUID is slightly different from the linux joystick one. Take note. */
static GUID DInput_Wine_Joystick_GUID = { /* 9e573eda-7734-11d2-8d4a-23903fb6bdf7 */
  0x9e573eda,
  0x7734,
  0x11d2,
  {0x8d, 0x4a, 0x23, 0x90, 0x3f, 0xb6, 0xbd, 0xf7}
};

static void fake_current_js_state(JoystickImpl *ji);
static int find_property_offset(JoystickImpl *This, LPCDIPROPHEADER ph);
static DWORD map_pov(int event_value, int is_x);

#define test_bit(arr,bit) (((BYTE*)(arr))[(bit)>>3]&(1<<((bit)&7)))

static int joydev_have(BOOL require_ff)
{
  int i, fd, flags, num_effects;
  int havejoy = 0;

  for (i=0;i<64;i++) {
      char	buf[200];
      BYTE	absbits[(ABS_MAX+7)/8],keybits[(KEY_MAX+7)/8];
      BYTE	evbits[(EV_MAX+7)/8],ffbits[(FF_MAX+7)/8];

      sprintf(buf,EVDEVPREFIX"%d",i);

      if (require_ff) 
	  flags = O_RDWR;
      else
	  flags = O_RDONLY;

      if (-1!=(fd=open(buf,flags))) {
	  if (-1==ioctl(fd,EVIOCGBIT(EV_ABS,sizeof(absbits)),absbits)) {
	      perror("EVIOCGBIT EV_ABS");
	      close(fd);
	      continue;
	  }
	  if (-1==ioctl(fd,EVIOCGBIT(EV_KEY,sizeof(keybits)),keybits)) {
	      perror("EVIOCGBIT EV_KEY");
	      close(fd);
	      continue;
	  }

	  /* test for force feedback if it's required */
	  if (require_ff) {
	      if ((-1==ioctl(fd,EVIOCGBIT(0,sizeof(evbits)),evbits))) {
	          perror("EVIOCGBIT 0");
	          close(fd);
	          continue; 
	      }
	      if (   (!test_bit(evbits,EV_FF))
	          || (-1==ioctl(fd,EVIOCGBIT(EV_FF,sizeof(ffbits)),ffbits)) 
                  || (-1==ioctl(fd,EVIOCGEFFECTS,&num_effects))
                  || (num_effects <= 0)) {
		  close(fd);
	          continue;
	      }
	  }

	  /* A true joystick has at least axis X and Y, and at least 1
	   * button. copied from linux/drivers/input/joydev.c */
	  if (test_bit(absbits,ABS_X) && test_bit(absbits,ABS_Y) &&
	      (   test_bit(keybits,BTN_TRIGGER)	||
		  test_bit(keybits,BTN_A) 	||
		  test_bit(keybits,BTN_1)
	      )
	  ) {
	      FIXME("found a joystick at %s!\n",buf);
	      havejoy = 1;
	  }
	  close(fd);
      }
      if (havejoy || (errno==ENODEV))
	  break;
  }
  return havejoy;
}

static BOOL joydev_enum_deviceA(DWORD dwDevType, DWORD dwFlags, LPDIDEVICEINSTANCEA lpddi, DWORD version, int id)
{
  int havejoy = 0;

  if (id != 0)
      return FALSE;

  if (!((dwDevType == 0) ||
        ((dwDevType == DIDEVTYPE_JOYSTICK) && (version < 0x0800)) ||
        (((dwDevType == DI8DEVCLASS_GAMECTRL) || (dwDevType == DI8DEVTYPE_JOYSTICK)) && (version >= 0x0800))))
    return FALSE;

#ifndef HAVE_STRUCT_FF_EFFECT_DIRECTION
  if (dwFlags & DIEDFL_FORCEFEEDBACK)
    return FALSE;
#endif

  havejoy = joydev_have(dwFlags & DIEDFL_FORCEFEEDBACK);

  if (!havejoy)
      return FALSE;

  TRACE("Enumerating the linuxinput Joystick device\n");

  /* Return joystick */
  lpddi->guidInstance	= GUID_Joystick;
  lpddi->guidProduct	= DInput_Wine_Joystick_GUID;

  lpddi->guidFFDriver = GUID_NULL;
  if (version >= 0x0800)
    lpddi->dwDevType    = DI8DEVTYPE_JOYSTICK | (DI8DEVTYPEJOYSTICK_STANDARD << 8);
  else
    lpddi->dwDevType    = DIDEVTYPE_JOYSTICK | (DIDEVTYPEJOYSTICK_TRADITIONAL << 8);

  strcpy(lpddi->tszInstanceName, "Joystick");
  /* ioctl JSIOCGNAME(len) */
  strcpy(lpddi->tszProductName,	"Wine Joystick");
  return TRUE;
}

static BOOL joydev_enum_deviceW(DWORD dwDevType, DWORD dwFlags, LPDIDEVICEINSTANCEW lpddi, DWORD version, int id)
{
  int havejoy = 0;

  if (id != 0)
      return FALSE;

  if (!((dwDevType == 0) ||
        ((dwDevType == DIDEVTYPE_JOYSTICK) && (version < 0x0800)) ||
        (((dwDevType == DI8DEVCLASS_GAMECTRL) || (dwDevType == DI8DEVTYPE_JOYSTICK)) && (version >= 0x0800))))
    return FALSE;

#ifndef HAVE_STRUCT_FF_EFFECT_DIRECTION
  if (dwFlags & DIEDFL_FORCEFEEDBACK)
    return FALSE;
#endif

  havejoy = joydev_have(dwFlags & DIEDFL_FORCEFEEDBACK);

  if (!havejoy)
      return FALSE;

  TRACE("Enumerating the linuxinput Joystick device\n");

  /* Return joystick */
  lpddi->guidInstance	= GUID_Joystick;
  lpddi->guidProduct	= DInput_Wine_Joystick_GUID;

  lpddi->guidFFDriver = GUID_NULL;
  if (version >= 0x0800)
    lpddi->dwDevType    = DI8DEVTYPE_JOYSTICK | (DI8DEVTYPEJOYSTICK_STANDARD << 8);
  else
    lpddi->dwDevType    = DIDEVTYPE_JOYSTICK | (DIDEVTYPEJOYSTICK_TRADITIONAL << 8);

  MultiByteToWideChar(CP_ACP, 0, "Joystick", -1, lpddi->tszInstanceName, MAX_PATH);
  /* ioctl JSIOCGNAME(len) */
  MultiByteToWideChar(CP_ACP, 0, "Wine Joystick", -1, lpddi->tszProductName, MAX_PATH);
  return TRUE;
}

static JoystickImpl *alloc_device(REFGUID rguid, const void *jvt, IDirectInputImpl *dinput)
{
  JoystickImpl* newDevice;
  int i;

  newDevice = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(JoystickImpl));
  newDevice->lpVtbl = jvt;
  newDevice->ref = 1;
  newDevice->joyfd = -1;
  newDevice->dinput = dinput;
#ifdef HAVE_STRUCT_FF_EFFECT_DIRECTION
  newDevice->ff_state = FF_STATUS_STOPPED;
#endif
  memcpy(&(newDevice->guid),rguid,sizeof(*rguid));
  for (i=0;i<ABS_MAX;i++) {
    newDevice->wantmin[i] = -32768;
    newDevice->wantmax[i] =  32767;
    /* TODO: 
     * direct input defines a default for the deadzone somewhere; but as long
     * as in map_axis the code for the dead zone is commented out its no
     * problem
     */
    newDevice->deadz[i]   =  0;
  }
  fake_current_js_state(newDevice);
  return newDevice;
}

static HRESULT joydev_create_deviceA(IDirectInputImpl *dinput, REFGUID rguid, REFIID riid, LPDIRECTINPUTDEVICEA* pdev)
{
  int havejoy = 0;

  havejoy = joydev_have(FALSE);

  if (!havejoy)
      return DIERR_DEVICENOTREG;

  if ((IsEqualGUID(&GUID_Joystick,rguid)) ||
      (IsEqualGUID(&DInput_Wine_Joystick_GUID,rguid))) {
    if ((riid == NULL) ||
	IsEqualGUID(&IID_IDirectInputDeviceA,riid) ||
	IsEqualGUID(&IID_IDirectInputDevice2A,riid) ||
	IsEqualGUID(&IID_IDirectInputDevice7A,riid) ||
	IsEqualGUID(&IID_IDirectInputDevice8A,riid)) {
      *pdev = (IDirectInputDeviceA*) alloc_device(rguid, &JoystickAvt, dinput);
      TRACE("Creating a Joystick device (%p)\n", *pdev);
      return DI_OK;
    } else
      return DIERR_NOINTERFACE;
  }

  return DIERR_DEVICENOTREG;
}


static HRESULT joydev_create_deviceW(IDirectInputImpl *dinput, REFGUID rguid, REFIID riid, LPDIRECTINPUTDEVICEW* pdev)
{
  int havejoy = 0;

  havejoy = joydev_have(FALSE);

  if (!havejoy)
      return DIERR_DEVICENOTREG;

  if ((IsEqualGUID(&GUID_Joystick,rguid)) ||
      (IsEqualGUID(&DInput_Wine_Joystick_GUID,rguid))) {
    if ((riid == NULL) ||
	IsEqualGUID(&IID_IDirectInputDeviceW,riid) ||
	IsEqualGUID(&IID_IDirectInputDevice2W,riid) ||
	IsEqualGUID(&IID_IDirectInputDevice7W,riid) ||
	IsEqualGUID(&IID_IDirectInputDevice8W,riid)) {
      *pdev = (IDirectInputDeviceW*) alloc_device(rguid, &JoystickWvt, dinput);
      TRACE("Creating a Joystick device (%p)\n", *pdev);
      return DI_OK;
    } else
      return DIERR_NOINTERFACE;
  }

  return DIERR_DEVICENOTREG;
}

const struct dinput_device joystick_linuxinput_device = {
  "Wine Linux-input joystick driver",
  joydev_enum_deviceA,
  joydev_enum_deviceW,
  joydev_create_deviceA,
  joydev_create_deviceW
};

/******************************************************************************
 *	Joystick
 */
static ULONG WINAPI JoystickAImpl_Release(LPDIRECTINPUTDEVICE8A iface)
{
	JoystickImpl *This = (JoystickImpl *)iface;
	ULONG ref;

	ref = InterlockedDecrement(&(This->ref));
	if (ref)
		return ref;

	/* Reset the FF state, free all effects, etc */
	IDirectInputDevice8_SendForceFeedbackCommand(iface, DISFFC_RESET);

	/* Free the data queue */
	HeapFree(GetProcessHeap(),0,This->data_queue);

	/* Free the DataFormat */
	HeapFree(GetProcessHeap(), 0, This->df);

	HeapFree(GetProcessHeap(),0,This);
	return 0;
}

/******************************************************************************
  *   SetDataFormat : the application can choose the format of the data
  *   the device driver sends back with GetDeviceState.
  */
static HRESULT WINAPI JoystickAImpl_SetDataFormat(
	LPDIRECTINPUTDEVICE8A iface,LPCDIDATAFORMAT df
)
{
  JoystickImpl *This = (JoystickImpl *)iface;

  TRACE("(this=%p,%p)\n",This,df);

  if (df == NULL) {
    WARN("invalid pointer\n");
    return E_POINTER;
  }

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

  _dump_DIDATAFORMAT(df);

  if (This->joyfd!=-1) {
    WARN("acquired\n");
    return DIERR_ACQUIRED;
  }

  /* Store the new data format */
  This->df = HeapAlloc(GetProcessHeap(),0,df->dwSize);
  if (This->df==NULL) {
    return DIERR_OUTOFMEMORY;
  }
  memcpy(This->df, df, df->dwSize);
  This->df->rgodf = HeapAlloc(GetProcessHeap(),0,df->dwNumObjs*df->dwObjSize);
  if (This->df->rgodf==NULL) {
    HeapFree(GetProcessHeap(), 0, This->df);
    return DIERR_OUTOFMEMORY;
  }
  memcpy(This->df->rgodf,df->rgodf,df->dwNumObjs*df->dwObjSize);

  return DI_OK;
}

/******************************************************************************
  *     Acquire : gets exclusive control of the joystick
  */
static HRESULT WINAPI JoystickAImpl_Acquire(LPDIRECTINPUTDEVICE8A iface)
{
    int		i,buttons;
    JoystickImpl *This = (JoystickImpl *)iface;
    char	buf[200];
    BOOL	readonly = TRUE;

    TRACE("(this=%p)\n",This);
    if (This->joyfd!=-1)
    	return S_FALSE;
    if (This->df==NULL) {
      return DIERR_INVALIDPARAM;
    }
    for (i=0;i<64;i++) {
      sprintf(buf,EVDEVPREFIX"%d",i);
      if (-1==(This->joyfd=open(buf,O_RDWR))) { 
        if (-1==(This->joyfd=open(buf,O_RDONLY))) {
	  /* Couldn't open the device at all */ 
	  if (errno==ENODEV)
	    return DIERR_NOTFOUND;
	  perror(buf);
	  continue;
	}
	else {
	  /* Couldn't open in r/w but opened in read-only. */
          WARN("Could not open %s in read-write mode.  Force feedback will be disabled.\n",buf);
	}
      }
      else {
	/* Opened device in read-write */
	readonly = FALSE;
      }
      if ((-1!=ioctl(This->joyfd,EVIOCGBIT(0,sizeof(This->evbits)),This->evbits)) &&
	  (-1!=ioctl(This->joyfd,EVIOCGBIT(EV_ABS,sizeof(This->absbits)),This->absbits)) &&
          (-1!=ioctl(This->joyfd,EVIOCGBIT(EV_KEY,sizeof(This->keybits)),This->keybits)) &&
          (test_bit(This->absbits,ABS_X) && test_bit(This->absbits,ABS_Y) &&
	   (test_bit(This->keybits,BTN_TRIGGER)||
	    test_bit(This->keybits,BTN_A)	 ||
	    test_bit(This->keybits,BTN_1)
	  )
	 )
      )
	break;
      close(This->joyfd);
      This->joyfd = -1;
    }
    if (This->joyfd==-1)
    	return DIERR_NOTFOUND;

    This->has_ff = FALSE;
    This->num_effects = 0;

#ifdef HAVE_STRUCT_FF_EFFECT_DIRECTION
    if (!readonly && test_bit(This->evbits, EV_FF)) {
        if (-1!=ioctl(This->joyfd,EVIOCGBIT(EV_FF,sizeof(This->ffbits)),This->ffbits)) {
	    if (-1!=ioctl(This->joyfd,EVIOCGEFFECTS,&This->num_effects) 
		&& This->num_effects > 0) {
		This->has_ff = TRUE;
		TRACE("Joystick seems to be capable of force feedback.\n");
	    }
	    else {
		TRACE("Joystick does not support any effects, disabling force feedback.\n");
	    }
        }
        else {
            TRACE("Could not get EV_FF bits; disabling force feedback.\n");
        }
    }
    else {
        TRACE("Force feedback disabled (device is readonly or joystick incapable).\n");
    }
#endif

    for (i=0;i<ABS_MAX;i++) {
	if (test_bit(This->absbits,i)) {
	  if (-1==ioctl(This->joyfd,EVIOCGABS(i),&(This->axes[i])))
	    continue;
	  TRACE("axe %d: cur=%d, min=%d, max=%d, fuzz=%d, flat=%d\n",
	      i,
	      This->axes[i][AXE_ABS],
	      This->axes[i][AXE_ABSMIN],
	      This->axes[i][AXE_ABSMAX],
	      This->axes[i][AXE_ABSFUZZ],
	      This->axes[i][AXE_ABSFLAT]
	  );
	  This->havemin[i] = This->axes[i][AXE_ABSMIN];
	  This->havemax[i] = This->axes[i][AXE_ABSMAX];
	}
    }
    buttons = 0;
    for (i=0;i<KEY_MAX;i++) {
	    if (test_bit(This->keybits,i)) {
		    TRACE("button %d: %d\n", i, buttons);
		    This->buttons[i] = 0x80 | buttons;
		    buttons++;
	    }
    }

	fake_current_js_state(This);

    return 0;
}

/******************************************************************************
  *     Unacquire : frees the joystick
  */
static HRESULT WINAPI JoystickAImpl_Unacquire(LPDIRECTINPUTDEVICE8A iface)
{
    JoystickImpl *This = (JoystickImpl *)iface;

    TRACE("(this=%p)\n",This);
    if (This->joyfd!=-1) {
  	close(This->joyfd);
	This->joyfd = -1;
	return DI_OK;
    }
    else 
    	return DI_NOEFFECT;
}

/*
 * This maps the read value (from the input event) to a value in the
 * 'wanted' range. It also autodetects the possible range of the axe and
 * adapts values accordingly.
 */
static int
map_axis(JoystickImpl* This, int axis, int val) {
    int	xmin = This->axes[axis][AXE_ABSMIN];
    int	xmax = This->axes[axis][AXE_ABSMAX];
    int hmax = This->havemax[axis];
    int hmin = This->havemin[axis];
    int	wmin = This->wantmin[axis];
    int	wmax = This->wantmax[axis];
    int ret;

    if (val > hmax) This->havemax[axis] = hmax = val;
    if (val < hmin) This->havemin[axis] = hmin = val;

    if (xmin == xmax) return val;

    /* map the value from the hmin-hmax range into the wmin-wmax range */
    ret = ((val-hmin) * (wmax-wmin)) / (hmax-hmin) + wmin;

    TRACE("xmin=%d xmax=%d hmin=%d hmax=%d wmin=%d wmax=%d val=%d ret=%d\n", xmin, xmax, hmin, hmax, wmin, wmax, val, ret);

#if 0
    /* deadzone doesn't work comfortably enough right now. needs more testing*/
    if ((ret > -deadz/2 ) && (ret < deadz/2)) {
        FIXME("%d in deadzone, return mid.\n",val);
	return (wmax-wmin)/2+wmin;
    }
#endif
    return ret;
}

/* 
 * set the current state of the js device as it would be with the middle
 * values on the axes
 */
static void fake_current_js_state(JoystickImpl *ji)
{
	int i;
	/* center the axes */
	ji->js.lX  = map_axis(ji, ABS_X,  ji->axes[ABS_X ][AXE_ABS]);
	ji->js.lY  = map_axis(ji, ABS_Y,  ji->axes[ABS_Y ][AXE_ABS]);
	ji->js.lZ  = map_axis(ji, ABS_Z,  ji->axes[ABS_Z ][AXE_ABS]);
	ji->js.lRx = map_axis(ji, ABS_RX, ji->axes[ABS_RX][AXE_ABS]);
	ji->js.lRy = map_axis(ji, ABS_RY, ji->axes[ABS_RY][AXE_ABS]);
	ji->js.lRz = map_axis(ji, ABS_RZ, ji->axes[ABS_RZ][AXE_ABS]);
	ji->js.rglSlider[0] = map_axis(ji, ABS_THROTTLE, ji->axes[ABS_THROTTLE][AXE_ABS]);
	ji->js.rglSlider[1] = map_axis(ji, ABS_RUDDER,   ji->axes[ABS_RUDDER  ][AXE_ABS]);
	/* POV center is -1 */
	for (i=0; i<4; i++) {
		ji->js.rgdwPOV[i] = -1;
	}
}

/*
 * Maps an event value to a DX "clock" position:
 *           0
 * 27000    -1 9000
 *       18000
 */
static DWORD map_pov(int event_value, int is_x) 
{
	DWORD ret = -1;
	if (is_x) {
		if (event_value<0) {
			ret = 27000;
		} else if (event_value>0) {
			ret = 9000;
		}
	} else {
		if (event_value<0) {
			ret = 0;
		} else if (event_value>0) {
			ret = 18000;
		}
	}
	return ret;
}

static int find_property_offset(JoystickImpl *This, LPCDIPROPHEADER ph)
{
  switch (ph->dwHow) {
    case DIPH_BYOFFSET: {
                          int i;
                          for (i=0; i<This->df->dwNumObjs; i++) {
                            if (This->df->rgodf[i].dwOfs == ph->dwObj) {
                              return i;
                            }
                          }
                        }
                        break;
    case DIPH_BYID: {
                      return DIDFT_GETINSTANCE(ph->dwObj)>>WINE_JOYSTICK_AXIS_BASE;
                    }
                    break;
    default:
                    FIXME("Unhandled ph->dwHow=='%04X'\n", (unsigned int)ph->dwHow);
  }

  return -1;
}

static void joy_polldev(JoystickImpl *This) {
    struct timeval tv;
    fd_set	readfds;
    struct	input_event ie;
    int         btn;

    if (This->joyfd==-1)
	return;

    while (1) {
	memset(&tv,0,sizeof(tv));
	FD_ZERO(&readfds);
	FD_SET(This->joyfd,&readfds);

	if (1>select(This->joyfd+1,&readfds,NULL,NULL,&tv))
	    return;

	/* we have one event, so we can read */
	if (sizeof(ie)!=read(This->joyfd,&ie,sizeof(ie)))
	    return;

	TRACE("input_event: type %d, code %d, value %d\n",ie.type,ie.code,ie.value);
	switch (ie.type) {
	case EV_KEY:	/* button */
		btn = This->buttons[ie.code];
		TRACE("(%p) %d -> %d\n", This, ie.code, btn);
		if (btn&0x80) {
			btn &= 0x7F;
			This->js.rgbButtons[btn] = ie.value?0x80:0x00;
			GEN_EVENT(DIJOFS_BUTTON(btn),ie.value?0x80:0x0,ie.time.tv_usec,(This->dinput->evsequence)++);
		}
		break;
	case EV_ABS:
	    switch (ie.code) {
	    case ABS_X:
		This->js.lX = map_axis(This,ABS_X,ie.value);
		GEN_EVENT(DIJOFS_X,This->js.lX,ie.time.tv_usec,(This->dinput->evsequence)++);
		break;
	    case ABS_Y:
		This->js.lY = map_axis(This,ABS_Y,ie.value);
		GEN_EVENT(DIJOFS_Y,This->js.lY,ie.time.tv_usec,(This->dinput->evsequence)++);
		break;
	    case ABS_Z:
		This->js.lZ = map_axis(This,ABS_Z,ie.value);
		GEN_EVENT(DIJOFS_Z,This->js.lZ,ie.time.tv_usec,(This->dinput->evsequence)++);
		break;
	    case ABS_RX:
		This->js.lRx = map_axis(This,ABS_RX,ie.value);
		GEN_EVENT(DIJOFS_RX,This->js.lRx,ie.time.tv_usec,(This->dinput->evsequence)++);
		break;
	    case ABS_RY:
		This->js.lRy = map_axis(This,ABS_RY,ie.value);
		GEN_EVENT(DIJOFS_RY,This->js.lRy,ie.time.tv_usec,(This->dinput->evsequence)++);
		break;
	    case ABS_RZ:
		This->js.lRz = map_axis(This,ABS_RZ,ie.value);
		GEN_EVENT(DIJOFS_RZ,This->js.lRz,ie.time.tv_usec,(This->dinput->evsequence)++);
		break;
	    case ABS_THROTTLE:
                This->js.rglSlider[0] = map_axis(This,ABS_THROTTLE,ie.value);
                GEN_EVENT(DIJOFS_SLIDER(0),This->js.rglSlider[0],ie.time.tv_usec,(This->dinput->evsequence)++);
                break;
	    case ABS_RUDDER:
                This->js.rglSlider[1] = map_axis(This,ABS_RUDDER,ie.value);
                GEN_EVENT(DIJOFS_SLIDER(1),This->js.rglSlider[1],ie.time.tv_usec,(This->dinput->evsequence)++);
                break;
	    case ABS_HAT0X:
	    case ABS_HAT0Y:
                This->js.rgdwPOV[0] = map_pov(ie.value,ie.code==ABS_HAT0X);
                GEN_EVENT(DIJOFS_POV(0),This->js.rgdwPOV[0],ie.time.tv_usec,(This->dinput->evsequence)++);
                break;
	    case ABS_HAT1X:
	    case ABS_HAT1Y:
                This->js.rgdwPOV[1] = map_pov(ie.value,ie.code==ABS_HAT1X);
                GEN_EVENT(DIJOFS_POV(1),This->js.rgdwPOV[1],ie.time.tv_usec,(This->dinput->evsequence)++);
                break;
	    case ABS_HAT2X:
	    case ABS_HAT2Y:
                This->js.rgdwPOV[2] = map_pov(ie.value,ie.code==ABS_HAT2X);
                GEN_EVENT(DIJOFS_POV(2),This->js.rgdwPOV[2],ie.time.tv_usec,(This->dinput->evsequence)++);
                break;
	    case ABS_HAT3X:
	    case ABS_HAT3Y:
                This->js.rgdwPOV[3] = map_pov(ie.value,ie.code==ABS_HAT3X);
                GEN_EVENT(DIJOFS_POV(3),This->js.rgdwPOV[3],ie.time.tv_usec,(This->dinput->evsequence)++);
                break;
	    default:
		FIXME("unhandled joystick axe event (code %d, value %d)\n",ie.code,ie.value);
		break;
	    }
	    break;
#ifdef HAVE_STRUCT_FF_EFFECT_DIRECTION
	case EV_FF_STATUS:
	    This->ff_state = ie.value;
	    break;
#endif
#ifdef EV_SYN
	case EV_SYN:
	    /* there is nothing to do */
	    break;
#endif
	default:
	    FIXME("joystick cannot handle type %d event (code %d)\n",ie.type,ie.code);
	    break;
	}
    }
}

/******************************************************************************
  *     GetDeviceState : returns the "state" of the joystick.
  *
  */
static HRESULT WINAPI JoystickAImpl_GetDeviceState(
	LPDIRECTINPUTDEVICE8A iface,DWORD len,LPVOID ptr
) {
    JoystickImpl *This = (JoystickImpl *)iface;

    joy_polldev(This);

    TRACE("(this=%p,0x%08lx,%p)\n",This,len,ptr);
    if ((len != sizeof(DIJOYSTATE)) && (len != sizeof(DIJOYSTATE2))) {
    	FIXME("len %ld is not sizeof(DIJOYSTATE) or DIJOYSTATE2, unsupported format.\n",len);
	return E_FAIL;
    }
    memcpy(ptr,&(This->js),len);
    This->queue_head = 0;
    This->queue_tail = 0;
    return 0;
}

/******************************************************************************
  *     GetDeviceData : gets buffered input data.
  */
static HRESULT WINAPI JoystickAImpl_GetDeviceData(LPDIRECTINPUTDEVICE8A iface,
					      DWORD dodsize,
					      LPDIDEVICEOBJECTDATA dod,
					      LPDWORD entries,
					      DWORD flags
) {
  JoystickImpl *This = (JoystickImpl *)iface;
  DWORD len;
  int nqtail;
  HRESULT hr = DI_OK;

  TRACE("(%p)->(dods=%ld,entries=%ld,fl=0x%08lx)\n",This,dodsize,*entries,flags);

  if (This->joyfd==-!1) {
    WARN("not acquired\n");
    return DIERR_NOTACQUIRED;
  }

  joy_polldev(This);
  if (flags & DIGDD_PEEK)
    FIXME("DIGDD_PEEK\n");

  len = ((This->queue_head < This->queue_tail) ? This->queue_len : 0)
    + (This->queue_head - This->queue_tail);
  if (len > *entries)
    len = *entries;

  if (dod == NULL) {
    if (len)
      TRACE("Application discarding %ld event(s).\n", len);

    *entries = len;
    nqtail = This->queue_tail + len;
    while (nqtail >= This->queue_len)
      nqtail -= This->queue_len;
  } else {
    if (dodsize < sizeof(DIDEVICEOBJECTDATA_DX3)) {
      ERR("Wrong structure size !\n");
      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(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_POV)) {
    int i;
    ddoi.guidType = GUID_POV;
    for (i=0; i<4; i++) {
      if (test_bit(This->absbits,ABS_HAT0X+(i<<1)) && test_bit(This->absbits,ABS_HAT0Y+(i<<1))) {
        ddoi.dwOfs = DIJOFS_POV(i);
        ddoi.dwType = DIDFT_MAKEINSTANCE(i << WINE_JOYSTICK_POV_BASE) | DIDFT_POV;
        sprintf(ddoi.tszName, "%d-POV", 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, btncount=0;

    /*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;
      ddoi.dwOfs = DIJOFS_BUTTON(btncount);
      ddoi.dwType = DIDFT_MAKEINSTANCE(btncount << WINE_JOYSTICK_BUTTON_BASE) | DIDFT_PSHBUTTON;
      sprintf(ddoi.tszName, "%d-Button", btncount);
      btncount++;
      _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
  */
static HRESULT WINAPI JoystickAImpl_CreateEffect(LPDIRECTINPUTDEVICE8A iface,
						 REFGUID rguid,
						 LPCDIEFFECT lpeff,
						 LPDIRECTINPUTEFFECT *ppdef,
						 LPUNKNOWN pUnkOuter)
{
#ifdef HAVE_STRUCT_FF_EFFECT_DIRECTION
    EffectListItem* new = NULL;
    HRESULT retval = DI_OK;
#endif

    JoystickImpl* This = (JoystickImpl*)iface;
    TRACE("(this=%p,%p,%p,%p,%p)\n", This, rguid, lpeff, ppdef, pUnkOuter);

#ifndef HAVE_STRUCT_FF_EFFECT_DIRECTION
    TRACE("not available (compiled w/o ff support)\n");
    *ppdef = NULL;
    return DI_OK; 
#else

    new = malloc(sizeof(EffectListItem));
    new->next = This->top_effect;
    This->top_effect = new;

    retval = linuxinput_create_effect(&(This->joyfd), rguid, &(new->ref));
    if (retval != DI_OK)
	return retval;
 
    if (lpeff != NULL)
	retval = IDirectInputEffect_SetParameters(new->ref, lpeff, 0);
    if (retval != DI_OK && retval != DI_DOWNLOADSKIPPED)
	return retval;

    *ppdef = new->ref;

    if (pUnkOuter != NULL)
	FIXME("Interface aggregation not implemented.\n");

    return DI_OK;

#endif /* HAVE_STRUCT_FF_EFFECT_DIRECTION */
} 

/*******************************************************************************
 *	EnumEffects - Enumerate available FF effects
 */
static HRESULT WINAPI JoystickAImpl_EnumEffects(LPDIRECTINPUTDEVICE8A iface,
						LPDIENUMEFFECTSCALLBACKA lpCallback,
						LPVOID pvRef,
						DWORD dwEffType)
{
#ifdef HAVE_STRUCT_FF_EFFECT_DIRECTION
    DIEFFECTINFOA dei; /* feif */
    DWORD type = DIEFT_GETTYPE(dwEffType);
    JoystickImpl* This = (JoystickImpl*)iface;
    int xfd = This->joyfd;

    TRACE("(this=%p,%p,%ld) type=%ld fd=%d\n", This, pvRef, dwEffType, type, xfd);

    dei.dwSize = sizeof(DIEFFECTINFOA);          

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

    if ((type == DIEFT_ALL || type == DIEFT_CONSTANTFORCE)
	&& test_bit(This->ffbits, FF_CONSTANT)) {
	IDirectInputDevice8_GetEffectInfo(iface, &dei, &GUID_ConstantForce);
	(*lpCallback)(&dei, pvRef);
    }

    if ((type == DIEFT_ALL || type == DIEFT_PERIODIC)
	&& test_bit(This->ffbits, FF_PERIODIC)) {
	if (test_bit(This->ffbits, FF_SQUARE)) {
	    IDirectInputDevice8_GetEffectInfo(iface, &dei, &GUID_Square);
	    (*lpCallback)(&dei, pvRef);
	}
	if (test_bit(This->ffbits, FF_SINE)) {
            IDirectInputDevice8_GetEffectInfo(iface, &dei, &GUID_Sine);
	    (*lpCallback)(&dei, pvRef);
	}
	if (test_bit(This->ffbits, FF_TRIANGLE)) {
	    IDirectInputDevice8_GetEffectInfo(iface, &dei, &GUID_Triangle);
	    (*lpCallback)(&dei, pvRef);
	}
	if (test_bit(This->ffbits, FF_SAW_UP)) {
	    IDirectInputDevice8_GetEffectInfo(iface, &dei, &GUID_SawtoothUp);
	    (*lpCallback)(&dei, pvRef);
	}
	if (test_bit(This->ffbits, FF_SAW_DOWN)) {
	    IDirectInputDevice8_GetEffectInfo(iface, &dei, &GUID_SawtoothDown);
	    (*lpCallback)(&dei, pvRef);
	}
    } 

    if ((type == DIEFT_ALL || type == DIEFT_RAMPFORCE)
	&& test_bit(This->ffbits, FF_RAMP)) {
        IDirectInputDevice8_GetEffectInfo(iface, &dei, &GUID_RampForce);
        (*lpCallback)(&dei, pvRef);
    }

    if (type == DIEFT_ALL || type == DIEFT_CONDITION) {
	if (test_bit(This->ffbits, FF_SPRING)) {
	    IDirectInputDevice8_GetEffectInfo(iface, &dei, &GUID_Spring);
	    (*lpCallback)(&dei, pvRef);
	}
	if (test_bit(This->ffbits, FF_DAMPER)) {
	    IDirectInputDevice8_GetEffectInfo(iface, &dei, &GUID_Damper);
	    (*lpCallback)(&dei, pvRef);
	}
	if (test_bit(This->ffbits, FF_INERTIA)) {
	    IDirectInputDevice8_GetEffectInfo(iface, &dei, &GUID_Inertia);
	    (*lpCallback)(&dei, pvRef);
	}
	if (test_bit(This->ffbits, FF_FRICTION)) {
	    IDirectInputDevice8_GetEffectInfo(iface, &dei, &GUID_Friction);
	    (*lpCallback)(&dei, pvRef);
	}
    }

    /* return to unaquired state if that's where it was */
    if (xfd == -1)
	IDirectInputDevice8_Unacquire(iface);
#endif

    return DI_OK;
}

static HRESULT WINAPI JoystickWImpl_EnumEffects(LPDIRECTINPUTDEVICE8W iface,
                                                LPDIENUMEFFECTSCALLBACKW lpCallback,
                                                LPVOID pvRef,
                                                DWORD dwEffType)
{
#ifdef HAVE_STRUCT_FF_EFFECT_DIRECTION
    /* seems silly to duplicate all this code but all the structures and functions
     * are actually different (A/W) */
    DIEFFECTINFOW dei; /* feif */
    DWORD type = DIEFT_GETTYPE(dwEffType);
    JoystickImpl* This = (JoystickImpl*)iface;
    int xfd = This->joyfd;

    TRACE("(this=%p,%p,%ld) type=%ld fd=%d\n", This, pvRef, dwEffType, type, xfd);

    dei.dwSize = sizeof(DIEFFECTINFOW);          

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

    if ((type == DIEFT_ALL || type == DIEFT_CONSTANTFORCE)
	&& test_bit(This->ffbits, FF_CONSTANT)) {
	IDirectInputDevice8_GetEffectInfo(iface, &dei, &GUID_ConstantForce);
	(*lpCallback)(&dei, pvRef);
    }

    if ((type == DIEFT_ALL || type == DIEFT_PERIODIC)
	&& test_bit(This->ffbits, FF_PERIODIC)) {
	if (test_bit(This->ffbits, FF_SQUARE)) {
	    IDirectInputDevice8_GetEffectInfo(iface, &dei, &GUID_Square);
	    (*lpCallback)(&dei, pvRef);
	}
	if (test_bit(This->ffbits, FF_SINE)) {
            IDirectInputDevice8_GetEffectInfo(iface, &dei, &GUID_Sine);
	    (*lpCallback)(&dei, pvRef);
	}
	if (test_bit(This->ffbits, FF_TRIANGLE)) {
	    IDirectInputDevice8_GetEffectInfo(iface, &dei, &GUID_Triangle);
	    (*lpCallback)(&dei, pvRef);
	}
	if (test_bit(This->ffbits, FF_SAW_UP)) {
	    IDirectInputDevice8_GetEffectInfo(iface, &dei, &GUID_SawtoothUp);
	    (*lpCallback)(&dei, pvRef);
	}
	if (test_bit(This->ffbits, FF_SAW_DOWN)) {
	    IDirectInputDevice8_GetEffectInfo(iface, &dei, &GUID_SawtoothDown);
	    (*lpCallback)(&dei, pvRef);
	}
    } 

    if ((type == DIEFT_ALL || type == DIEFT_RAMPFORCE)
	&& test_bit(This->ffbits, FF_RAMP)) {
        IDirectInputDevice8_GetEffectInfo(iface, &dei, &GUID_RampForce);
        (*lpCallback)(&dei, pvRef);
    }

    if (type == DIEFT_ALL || type == DIEFT_CONDITION) {
	if (test_bit(This->ffbits, FF_SPRING)) {
	    IDirectInputDevice8_GetEffectInfo(iface, &dei, &GUID_Spring);
	    (*lpCallback)(&dei, pvRef);
	}
	if (test_bit(This->ffbits, FF_DAMPER)) {
	    IDirectInputDevice8_GetEffectInfo(iface, &dei, &GUID_Damper);
	    (*lpCallback)(&dei, pvRef);
	}
	if (test_bit(This->ffbits, FF_INERTIA)) {
	    IDirectInputDevice8_GetEffectInfo(iface, &dei, &GUID_Inertia);
	    (*lpCallback)(&dei, pvRef);
	}
	if (test_bit(This->ffbits, FF_FRICTION)) {
	    IDirectInputDevice8_GetEffectInfo(iface, &dei, &GUID_Friction);
	    (*lpCallback)(&dei, pvRef);
	}
    }

    /* return to unaquired state if that's where it was */
    if (xfd == -1)
	IDirectInputDevice8_Unacquire(iface);
#endif

    return DI_OK;
}

/*******************************************************************************
 *      GetEffectInfo - Get information about a particular effect 
 */
static HRESULT WINAPI JoystickAImpl_GetEffectInfo(LPDIRECTINPUTDEVICE8A iface,
						  LPDIEFFECTINFOA pdei,
						  REFGUID guid)
{
    JoystickImpl* This = (JoystickImpl*)iface;

    TRACE("(this=%p,%p,%s)\n", This, pdei, _dump_dinput_GUID(guid));

#ifdef HAVE_STRUCT_FF_EFFECT_DIRECTION
    return linuxinput_get_info_A(This->joyfd, guid, pdei); 
#else
    return DI_OK;
#endif
}

static HRESULT WINAPI JoystickWImpl_GetEffectInfo(LPDIRECTINPUTDEVICE8W iface,
                                                  LPDIEFFECTINFOW pdei,
                                                  REFGUID guid)
{
    JoystickImpl* This = (JoystickImpl*)iface;
            
    TRACE("(this=%p,%p,%s)\n", This, pdei, _dump_dinput_GUID(guid));
        
#ifdef HAVE_STRUCT_FF_EFFECT_DIRECTION
    return linuxinput_get_info_W(This->joyfd, guid, pdei);
#else
    return DI_OK;
#endif
}

/*******************************************************************************
 *      GetForceFeedbackState - Get information about the device's FF state 
 */
static HRESULT WINAPI JoystickAImpl_GetForceFeedbackState(
	LPDIRECTINPUTDEVICE8A iface,
	LPDWORD pdwOut)
{
    JoystickImpl* This = (JoystickImpl*)iface;

    TRACE("(this=%p,%p)\n", This, pdwOut);

    (*pdwOut) = 0;

#ifdef HAVE_STRUCT_FF_EFFECT_DIRECTION
    /* DIGFFS_STOPPED is the only mandatory flag to report */
    if (This->ff_state == FF_STATUS_STOPPED)
	(*pdwOut) |= DIGFFS_STOPPED;
#endif

    return DI_OK;
}

/*******************************************************************************
 *      SendForceFeedbackCommand - Send a command to the device's FF system
 */
static HRESULT WINAPI JoystickAImpl_SendForceFeedbackCommand(
	LPDIRECTINPUTDEVICE8A iface,
	DWORD dwFlags)
{
    JoystickImpl* This = (JoystickImpl*)iface;
    TRACE("(this=%p,%ld)\n", This, dwFlags);

#ifdef HAVE_STRUCT_FF_EFFECT_DIRECTION
    if (dwFlags == DISFFC_STOPALL) {
	/* Stop all effects */
	EffectListItem* itr = This->top_effect;
	while (itr) {
	    IDirectInputEffect_Stop(itr->ref);
	    itr = itr->next;
	}
    } else if (dwFlags == DISFFC_RESET) {
	/* Stop, unload, release and free all effects */
	/* This returns the device to its "bare" state */
	while (This->top_effect) {
	    EffectListItem* temp = This->top_effect; 
	    IDirectInputEffect_Stop(temp->ref);
	    IDirectInputEffect_Unload(temp->ref);
	    IDirectInputEffect_Release(temp->ref);
	    This->top_effect = temp->next; 
	    free(temp);
	}
    } else if (dwFlags == DISFFC_PAUSE || dwFlags == DISFFC_CONTINUE) {
	FIXME("No support for Pause or Continue in linux\n");
    } else if (dwFlags == DISFFC_SETACTUATORSOFF 
		|| dwFlags == DISFFC_SETACTUATORSON) {
	FIXME("No direct actuator control in linux\n");
    } else {
	FIXME("Unknown Force Feedback Command!\n");
	return DIERR_INVALIDPARAM;
    }
    return DI_OK;
#else
    return DIERR_UNSUPPORTED;
#endif
}

/*******************************************************************************
 *      EnumCreatedEffectObjects - Enumerate all the effects that have been
 *		created for this device.
 */
static HRESULT WINAPI JoystickAImpl_EnumCreatedEffectObjects(
	LPDIRECTINPUTDEVICE8A iface,
	LPDIENUMCREATEDEFFECTOBJECTSCALLBACK lpCallback,
	LPVOID pvRef,
	DWORD dwFlags)
{
    /* this function is safe to call on non-ff-enabled builds */

    JoystickImpl* This = (JoystickImpl*)iface;
    EffectListItem* itr = This->top_effect;
    TRACE("(this=%p,%p,%p,%ld)\n", This, lpCallback, pvRef, dwFlags);

    if (!lpCallback)
	return DIERR_INVALIDPARAM;

    if (dwFlags != 0)
	FIXME("Flags specified, but no flags exist yet (DX9)!");

    while (itr) {
	(*lpCallback)(itr->ref, pvRef);
	itr = itr->next;
    }

    return DI_OK;
}

static const IDirectInputDevice8AVtbl JoystickAvt =
{
	IDirectInputDevice2AImpl_QueryInterface,
	IDirectInputDevice2AImpl_AddRef,
	JoystickAImpl_Release,
	JoystickAImpl_GetCapabilities,
	JoystickAImpl_EnumObjects,
	JoystickAImpl_GetProperty,
	JoystickAImpl_SetProperty,
	JoystickAImpl_Acquire,
	JoystickAImpl_Unacquire,
	JoystickAImpl_GetDeviceState,
	JoystickAImpl_GetDeviceData,
	JoystickAImpl_SetDataFormat,
	JoystickAImpl_SetEventNotification,
	IDirectInputDevice2AImpl_SetCooperativeLevel,
	IDirectInputDevice2AImpl_GetObjectInfo,
	IDirectInputDevice2AImpl_GetDeviceInfo,
	IDirectInputDevice2AImpl_RunControlPanel,
	IDirectInputDevice2AImpl_Initialize,
	JoystickAImpl_CreateEffect,
	JoystickAImpl_EnumEffects,
	JoystickAImpl_GetEffectInfo,
	JoystickAImpl_GetForceFeedbackState,
	JoystickAImpl_SendForceFeedbackCommand,
	JoystickAImpl_EnumCreatedEffectObjects,
	IDirectInputDevice2AImpl_Escape,
	JoystickAImpl_Poll,
	IDirectInputDevice2AImpl_SendDeviceData,
	IDirectInputDevice7AImpl_EnumEffectsInFile,
        IDirectInputDevice7AImpl_WriteEffectToFile,
        IDirectInputDevice8AImpl_BuildActionMap,
        IDirectInputDevice8AImpl_SetActionMap,
        IDirectInputDevice8AImpl_GetImageInfo
};

#if !defined(__STRICT_ANSI__) && defined(__GNUC__)
# define XCAST(fun)	(typeof(JoystickWvt.fun))
#else
# define XCAST(fun)	(void*)
#endif

static const IDirectInputDevice8WVtbl JoystickWvt =
{
	IDirectInputDevice2WImpl_QueryInterface,
	XCAST(AddRef)IDirectInputDevice2AImpl_AddRef,
	XCAST(Release)JoystickAImpl_Release,
	XCAST(GetCapabilities)JoystickAImpl_GetCapabilities,
	JoystickWImpl_EnumObjects,
	XCAST(GetProperty)JoystickAImpl_GetProperty,
	XCAST(SetProperty)JoystickAImpl_SetProperty,
	XCAST(Acquire)JoystickAImpl_Acquire,
	XCAST(Unacquire)JoystickAImpl_Unacquire,
	XCAST(GetDeviceState)JoystickAImpl_GetDeviceState,
	XCAST(GetDeviceData)JoystickAImpl_GetDeviceData,
	XCAST(SetDataFormat)JoystickAImpl_SetDataFormat,
	XCAST(SetEventNotification)JoystickAImpl_SetEventNotification,
	XCAST(SetCooperativeLevel)IDirectInputDevice2AImpl_SetCooperativeLevel,
	IDirectInputDevice2WImpl_GetObjectInfo,
	IDirectInputDevice2WImpl_GetDeviceInfo,
	XCAST(RunControlPanel)IDirectInputDevice2AImpl_RunControlPanel,
	XCAST(Initialize)IDirectInputDevice2AImpl_Initialize,
	XCAST(CreateEffect)JoystickAImpl_CreateEffect,
	JoystickWImpl_EnumEffects,
	JoystickWImpl_GetEffectInfo,
	XCAST(GetForceFeedbackState)JoystickAImpl_GetForceFeedbackState,
	XCAST(SendForceFeedbackCommand)JoystickAImpl_SendForceFeedbackCommand,
	XCAST(EnumCreatedEffectObjects)JoystickAImpl_EnumCreatedEffectObjects,
	XCAST(Escape)IDirectInputDevice2AImpl_Escape,
	XCAST(Poll)JoystickAImpl_Poll,
	XCAST(SendDeviceData)IDirectInputDevice2AImpl_SendDeviceData,
        IDirectInputDevice7WImpl_EnumEffectsInFile,
        IDirectInputDevice7WImpl_WriteEffectToFile,
        IDirectInputDevice8WImpl_BuildActionMap,
        IDirectInputDevice8WImpl_SetActionMap,
        IDirectInputDevice8WImpl_GetImageInfo
};
#undef XCAST

#else  /* HAVE_CORRECT_LINUXINPUT_H */

const struct dinput_device joystick_linuxinput_device = {
  "Wine Linux-input joystick driver",
  NULL,
  NULL,
  NULL,
  NULL
};

#endif  /* HAVE_CORRECT_LINUXINPUT_H */