On Tue, Oct 29, 2013 at 11:07:29PM +0600, Alexandr Shadchin wrote:
> 
> Update diff (add small hack for NetBSD).

Thanks. This (plus the kernel diff) is ok matthieu@. 
> 
> --
> Alexandr Shadchin
> 
> Index: ws.c
> ===================================================================
> RCS file: /cvs/xenocara/driver/xf86-input-ws/src/ws.c,v
> retrieving revision 1.58
> diff -u -p -r1.58 ws.c
> --- ws.c      20 Jul 2013 13:24:50 -0000      1.58
> +++ ws.c      29 Oct 2013 16:57:05 -0000
> @@ -428,13 +428,6 @@ wsDeviceOn(DeviceIntPtr pWS)
>                       }
>               }
>       }
> -     priv->buffer = XisbNew(pInfo->fd,
> -         sizeof(struct wscons_event) * NUMEVENTS);
> -     if (priv->buffer == NULL) {
> -             xf86IDrvMsg(pInfo, X_ERROR, "cannot alloc xisb buffer\n");
> -             wsClose(pInfo);
> -             return !Success;
> -     }
>       xf86AddEnabledDevice(pInfo);
>       wsmbEmuOn(pInfo);
>       pWS->public.on = TRUE;
> @@ -462,170 +455,157 @@ wsDeviceOff(DeviceIntPtr pWS)
>               xf86RemoveEnabledDevice(pInfo);
>               wsClose(pInfo);
>       }
> -     if (priv->buffer) {
> -             XisbFree(priv->buffer);
> -             priv->buffer = NULL;
> -     }
>       pWS->public.on = FALSE;
>  }
>  
> -static void
> -wsReadInput(InputInfoPtr pInfo)
> +static Bool
> +wsReadEvent(InputInfoPtr pInfo, struct wscons_event *event)
>  {
> -     WSDevicePtr priv = (WSDevicePtr)pInfo->private;
> -     static struct wscons_event eventList[NUMEVENTS];
> -     int n, c, dx, dy;
> -     struct wscons_event *event = eventList;
> -     unsigned char *pBuf;
> -
> -     XisbBlockDuration(priv->buffer, -1);
> -     pBuf = (unsigned char *)eventList;
> -     n = 0;
> -     while (n < sizeof(eventList) && (c = XisbRead(priv->buffer)) >= 0) {
> -             pBuf[n++] = (unsigned char)c;
> +     Bool rc = TRUE;
> +     ssize_t len;
> +
> +     len = read(pInfo->fd, event, sizeof(struct wscons_event));
> +     if (len <= 0) {
> +             if (errno != EAGAIN)
> +                     xf86IDrvMsg(pInfo, X_ERROR, "read error %s\n",
> +                         strerror(errno));
> +             rc = FALSE;
> +     } else if (len != sizeof(struct wscons_event)) {
> +             xf86IDrvMsg(pInfo, X_ERROR,
> +                 "read error, invalid number of bytes\n");
> +             rc = FALSE;
>       }
>  
> -     if (n == 0)
> -             return;
> +     return rc;
> +}
>  
> -     dx = dy = 0;
> -     n /= sizeof(struct wscons_event);
> -     while (n--) {
> -             int buttons = priv->lastButtons;
> -             int newdx = 0, newdy = 0, dz = 0, dw = 0, ax = 0, ay = 0;
> -             int zbutton = 0, wbutton = 0;
> +static Bool
> +wsReadHwState(InputInfoPtr pInfo, wsHwState *hw)
> +{
> +     WSDevicePtr priv = (WSDevicePtr)pInfo->private;
> +     struct wscons_event event;
> +
> +     bzero(hw, sizeof(wsHwState));
> +
> +     hw->buttons = priv->lastButtons;
> +     hw->ax = priv->old_ax;
> +     hw->ay = priv->old_ay;
>  
> -             switch (event->type) {
> +     while (wsReadEvent(pInfo, &event)) {
> +             switch (event.type) {
>               case WSCONS_EVENT_MOUSE_UP:
> -                     buttons &= ~(1 << event->value);
> -                     DBG(4, ErrorF("Button %d up %x\n", event->value,
> -                         buttons));
> +                     hw->buttons &= ~(1 << event.value);
> +                     DBG(4, ErrorF("Button %d up %x\n", event.value,
> +                         hw->buttons));
>                       break;
>               case WSCONS_EVENT_MOUSE_DOWN:
> -                     buttons |= (1 << event->value);
> -                     DBG(4, ErrorF("Button %d down %x\n", event->value,
> -                         buttons));
> +                     hw->buttons |= (1 << event.value);
> +                     DBG(4, ErrorF("Button %d down %x\n", event.value,
> +                         hw->buttons));
>                       break;
>               case WSCONS_EVENT_MOUSE_DELTA_X:
> -                     if (!dx)
> -                             dx = event->value;
> -                     else
> -                             newdx = event->value;
> -                     DBG(4, ErrorF("Relative X %d\n", event->value));
> +                     hw->dx = event.value;
> +                     DBG(4, ErrorF("Relative X %d\n", event.value));
>                       break;
>               case WSCONS_EVENT_MOUSE_DELTA_Y:
> -                     if (!dy)
> -                             dy = -event->value;
> -                     else
> -                             newdy = -event->value;
> -                     DBG(4, ErrorF("Relative Y %d\n", event->value));
> +                     hw->dy = -event.value;
> +                     DBG(4, ErrorF("Relative Y %d\n", event.value));
> +                     break;
> +             case WSCONS_EVENT_MOUSE_DELTA_Z:
> +                     hw->dz = event.value;
> +                     DBG(4, ErrorF("Relative Z %d\n", event.value));
> +                     break;
> +             case WSCONS_EVENT_MOUSE_DELTA_W:
> +                     hw->dw = event.value;
> +                     DBG(4, ErrorF("Relative W %d\n", event.value));
>                       break;
>               case WSCONS_EVENT_MOUSE_ABSOLUTE_X:
> -                     DBG(4, ErrorF("Absolute X %d\n", event->value));
> -                     if (event->value == 4095)
> -                             break;
> -                     ax = event->value;
> +                     hw->ax = event.value;
>                       if (priv->inv_x)
> -                             ax = priv->max_x - ax + priv->min_x;
> +                             hw->ax = priv->max_x - hw->ax + priv->min_x;
> +                     DBG(4, ErrorF("Absolute X %d\n", event.value));
>                       break;
>               case WSCONS_EVENT_MOUSE_ABSOLUTE_Y:
> -                     DBG(4, ErrorF("Absolute Y %d\n", event->value));
> -                     ay = event->value;
> +                     hw->ay = event.value;
>                       if (priv->inv_y)
> -                             ay = priv->max_y - ay + priv->min_y;
> -                     break;
> -             case WSCONS_EVENT_MOUSE_DELTA_Z:
> -                     DBG(4, ErrorF("Relative Z %d\n", event->value));
> -                     dz = event->value;
> +                             hw->ay = priv->max_y - hw->ay + priv->min_y;
> +                     DBG(4, ErrorF("Absolute Y %d\n", event.value));
>                       break;
>               case WSCONS_EVENT_MOUSE_ABSOLUTE_Z:
> +             case WSCONS_EVENT_MOUSE_ABSOLUTE_W:
>                       /* ignore those */
> -                     ++event;
>                       continue;
> -                     break;
> -             case WSCONS_EVENT_MOUSE_DELTA_W:
> -                     DBG(4, ErrorF("Relative W %d\n", event->value));
> -                     dw = event->value;
> -                     break;
> +             case WSCONS_EVENT_SYNC:
> +                     DBG(4, ErrorF("Sync\n"));
> +                     return TRUE;
>               default:
>                       xf86IDrvMsg(pInfo, X_WARNING,
> -                         "bad wsmouse event type=%d\n", event->type);
> -                     ++event;
> +                         "bad wsmouse event type=%d\n", event.type);
>                       continue;
>               }
> -             ++event;
> +#ifdef __NetBSD__
> +             /*
> +              * XXX NetBSD reads only one event.
> +              * WSCONS_EVENT_SYNC is not supported yet.
> +              */
> +             return TRUE;
> +#endif
> +     }
>  
> -             if ((newdx || newdy) || ((dx || dy) &&
> -                 event->type != WSCONS_EVENT_MOUSE_DELTA_X &&
> -                 event->type != WSCONS_EVENT_MOUSE_DELTA_Y)) {
> -                     int tmpx = dx, tmpy = dy;
> -                     dx = newdx;
> -                     dy = newdy;
> -
> -                     if (wsWheelEmuFilterMotion(pInfo, tmpx, tmpy))
> -                             continue;
> -
> -                     /* relative motion event */
> -                     DBG(3, ErrorF("postMotionEvent dX %d dY %d\n",
> -                         tmpx, tmpy));
> -                     xf86PostMotionEvent(pInfo->dev, 0, 0, 2, tmpx, tmpy);
> -             }
> -             if (dz && priv->Z.negative != WS_NOMAP
> -                 && priv->Z.positive != WS_NOMAP) {
> -                     zbutton = (dz < 0) ? priv->Z.negative :
> -                         priv->Z.positive;
> -                     DBG(4, ErrorF("Z -> button %d\n", zbutton));
> -                     wsButtonClicks(pInfo, zbutton, abs(dz));
> -             }
> -             if (dw && priv->W.negative != WS_NOMAP
> -                 && priv->W.positive != WS_NOMAP) {
> -                     wbutton = (dw < 0) ? priv->W.negative :
> -                         priv->W.positive;
> -                     DBG(4, ErrorF("W -> button %d\n", wbutton));
> -                     wsButtonClicks(pInfo, wbutton, abs(dw));
> -             }
> -             if (priv->lastButtons != buttons) {
> -                     /* button event */
> -                     wsSendButtons(pInfo, buttons);
> -             }
> -             if (priv->swap_axes) {
> -                     int tmp;
> +     return FALSE;
> +}
>  
> -                     tmp = ax;
> -                     ax = ay;
> -                     ay = tmp;
> -             }
> -             if (ax) {
> -                     int xdelta = ax - priv->old_ax;
> -                     priv->old_ax = ax;
> -                     if (wsWheelEmuFilterMotion(pInfo, xdelta, 0))
> -                             continue;
> -
> -                     /* absolute position event */
> -                     DBG(3, ErrorF("postMotionEvent X %d\n", ax));
> -                     xf86PostMotionEvent(pInfo->dev, 1, 0, 1, ax);
> -             }
> -             if (ay) {
> -                     int ydelta = ay - priv->old_ay;
> -                     priv->old_ay = ay;
> -                     if (wsWheelEmuFilterMotion(pInfo, 0, ydelta))
> -                             continue;
> -
> -                     /* absolute position event */
> -                     DBG(3, ErrorF("postMotionEvent y %d\n", ay));
> -                     xf86PostMotionEvent(pInfo->dev, 1, 1, 1, ay);
> -             }
> +static void
> +wsReadInput(InputInfoPtr pInfo)
> +{
> +     WSDevicePtr priv = (WSDevicePtr)pInfo->private;
> +     wsHwState hw;
> +
> +     if (!wsReadHwState(pInfo, &hw))
> +             return;
> +
> +     if ((hw.dx || hw.dy) && !wsWheelEmuFilterMotion(pInfo, hw.dx, hw.dy)) {
> +             /* relative motion event */
> +             DBG(3, ErrorF("postMotionEvent dX %d dY %d\n", hw.dx, hw.dy));
> +             xf86PostMotionEvent(pInfo->dev, 0, 0, 2, hw.dx, hw.dy);
>       }
> -     if (dx || dy) {
> -             if (wsWheelEmuFilterMotion(pInfo, dx, dy))
> +     if (hw.dz && priv->Z.negative != WS_NOMAP
> +         && priv->Z.positive != WS_NOMAP) {
> +             int zbutton;
> +             zbutton = (hw.dz < 0) ? priv->Z.negative : priv->Z.positive;
> +             DBG(4, ErrorF("Z -> button %d (%d)\n", zbutton, abs(hw.dz)));
> +             wsButtonClicks(pInfo, zbutton, abs(hw.dz));
> +     }
> +     if (hw.dw && priv->W.negative != WS_NOMAP
> +         && priv->W.positive != WS_NOMAP) {
> +             int wbutton;
> +             wbutton = (hw.dw < 0) ? priv->W.negative : priv->W.positive;
> +             DBG(4, ErrorF("W -> button %d (%d)\n", wbutton, abs(hw.dw)));
> +             wsButtonClicks(pInfo, wbutton, abs(hw.dw));
> +     }
> +     if (priv->lastButtons != hw.buttons) {
> +             /* button event */
> +             wsSendButtons(pInfo, hw.buttons);
> +     }
> +     if (priv->swap_axes) {
> +             int tmp;
> +
> +             tmp = hw.ax;
> +             hw.ax = hw.ay;
> +             hw.ay = tmp;
> +     }
> +     if ((hw.ax != priv->old_ax) || (hw.ay != priv->old_ay)) {
> +             int xdelta = hw.ax - priv->old_ax;
> +             int ydelta = hw.ay - priv->old_ay;
> +             priv->old_ax = hw.ax;
> +             priv->old_ay = hw.ay;
> +             if (wsWheelEmuFilterMotion(pInfo, xdelta, ydelta))
>                       return;
>  
> -             /* relative motion event */
> -             DBG(3, ErrorF("postMotionEvent dX %d dY %d\n",
> -                 dx, dy));
> -             xf86PostMotionEvent(pInfo->dev, 0, 0, 2, dx, dy);
> +             /* absolute position event */
> +             DBG(3, ErrorF("postMotionEvent X %d Y %d\n", hw.ax, hw.ay));
> +             xf86PostMotionEvent(pInfo->dev, 1, 0, 2, hw.ax, hw.ay);
>       }
> -     return;
>  }
>  
>  static void
> Index: ws.h
> ===================================================================
> RCS file: /cvs/xenocara/driver/xf86-input-ws/src/ws.h,v
> retrieving revision 1.12
> diff -u -p -r1.12 ws.h
> --- ws.h      12 Jun 2012 17:44:56 -0000      1.12
> +++ ws.h      29 Oct 2013 16:57:05 -0000
> @@ -29,7 +29,6 @@ extern int ws_debug_level;
>  #define NAXES                2       /* X and Y axes only */
>  #define NBUTTONS     32      /* max theoretical buttons */
>  #define DFLTBUTTONS  3       /* default number of buttons */
> -#define NUMEVENTS    16      /* max # of ws events to read at once */
>  
>  #define WS_NOMAP     0
>  
> @@ -40,6 +39,12 @@ typedef struct {
>       int traveled_distance;
>  } WheelAxis, *WheelAxisPtr;
>  
> +typedef struct {
> +     unsigned int buttons;
> +     int dx, dy, dz, dw;
> +     int ax, ay;
> +} wsHwState;
> +
>  typedef struct WSDevice {
>       char *devName;                  /* device name */
>       int type;                       /* ws device type */
> @@ -50,7 +55,6 @@ typedef struct WSDevice {
>       int raw;
>       int inv_x, inv_y;
>       int screen_no;
> -     pointer buffer;
>       WheelAxis Z;
>       WheelAxis W;
>       struct wsmouse_calibcoords coords; /* mirror of the kernel values */

-- 
Matthieu Herrb

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