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diff -uprN a/include/synaptics-properties.h b/include/synaptics-properties.h
--- a/include/synaptics-properties.h 2011-02-20 20:46:37.000000000 -0500
+++ b/include/synaptics-properties.h 2011-03-19 18:07:43.268845823 -0400
@@ -155,6 +155,15 @@
 /* 32 bit, 4 values, left, right, top, bottom */
 #define SYNAPTICS_PROP_AREA "Synaptics Area"
 
+/* 8 bit (BOOL, read-only), has_led */
+#define SYNAPTICS_PROP_LED "Synaptics LED"
+
+/* 8 bit (BOOL), led_status (on/off) */
+#define SYNAPTICS_PROP_LED_STATUS "Synaptics LED Status"
+
+/* 8 bit (BOOL), double-tap action on LED corner (on/off) */
+#define SYNAPTICS_PROP_LED_DOUBLE_TAP "Synaptics LED Dobule Tap"
+
 /* 32 Bit Integer, 2 values, horizontal hysteresis, vertical hysteresis */
 #define SYNAPTICS_PROP_NOISE_CANCELLATION "Synaptics Noise Cancellation"
 
diff -uprN a/man/synaptics.man b/man/synaptics.man
--- a/man/synaptics.man 2011-02-20 20:50:51.000000000 -0500
+++ b/man/synaptics.man 2011-03-19 18:07:43.269845760 -0400
@@ -564,6 +564,19 @@ coordinates are less than MaxTapMove uni
 A "touch" event happens when the Z value goes above FingerHigh, and an
 "untouch" event happens when the Z value goes below FingerLow.
 .
+.TP
+.BI "Option \*qLEDDoubleTap\*q \*q" boolean \*q
+.
+Enables/disables the touchpad-control by double-tapping on the top-left
+corner LED.
+.
+Some devices have an LED on the top-left corner to indicate the
+touchpad state. User can double-tap on the LED to toggle the touchpad
+state. This option controls whether this action is enabled or not.
+The double-tap size is same as specified in MaxDoubleTapTime.
+The default value is ON.
+Property: "Synaptics LED Double Tap"
+.
 .LP
 The MaxDoubleTapTime parameter has the same function as the MaxTapTime
 parameter, but for the second, third, etc tap in a tap sequence.
@@ -753,6 +766,15 @@ and finger movement distance.
 Trackstick mode is exited when the finger pressure drops below
 FingerLow or when the finger is moved further than MaxTapMove away
 from the initial position.
+.
+When the input device reports a device with a single left button
+and without multi-fingers, the driver assumes it's a Synaptics
+Clickpad device and handles it in ClickZone mode. In this mode,
+a left/right/middle button event is generated according to the
+position you click. When Clickpad is enabled, the touchpad area
+is shrunk as default in 20% and the bottom area is used as the
+click-button area. The area can be configurable via options or
+properties below.
 
 .SH "DEVICE PROPERTIES"
 Synaptics 1.0 and higher support input device properties if the driver is
@@ -927,6 +949,19 @@ right button, two-finger detection, thre
 .BI "Synaptics Pad Resolution"
 32 bit unsigned, 2 values (read-only), vertical, horizontal in units/millimeter.
 
+.TP 7
+.BI "Synaptics LED"
+8 bit (BOOL, read-only), indicating whether the device has an embedded
+LED support or not.
+
+.TP 7
+.BI "Synaptics LED Status"
+8 bit (BOOL), the light status of the embedded LED.
+
+.TP 7
+.BI "Synaptics LED Double Tap"
+8 bit (BOOL), enable/disable the double-tap on LED.
+
 .SH "NOTES"
 There is an example hal policy file in
 .I ${sourcecode}/fdi/11-x11-synaptics.fdi
diff -uprN a/src/eventcomm.c b/src/eventcomm.c
--- a/src/eventcomm.c 2011-03-03 21:35:56.000000000 -0500
+++ b/src/eventcomm.c 2011-03-19 18:07:39.623954123 -0400
@@ -51,6 +51,8 @@
 #define LONG(x) ((x) / LONG_BITS)
 #define TEST_BIT(bit, array) ((array[LONG(bit)] >> OFF(bit)) & 1)
 
+#define SYNAPTICS_LED_SYS_FILE "/sys/class/leds/psmouse::synaptics/brightness"
+
 /*****************************************************************************
  * Function Definitions
  ****************************************************************************/
@@ -166,6 +168,32 @@ event_query_info(InputInfoPtr pInfo)
     }
 }
 
+static void
+event_query_led(InputInfoPtr pInfo)
+{
+ SynapticsPrivate *priv = (SynapticsPrivate *)pInfo->private;
+
+ priv->synpara.has_led = !access(SYNAPTICS_LED_SYS_FILE, W_OK);
+}
+
+static void EventUpdateLED(InputInfoPtr pInfo)
+{
+ SynapticsPrivate *priv = (SynapticsPrivate *)pInfo->private;
+
+ if (priv->synpara.has_led) {
+ char *val = priv->synpara.led_status ? "255" : "0";
+ int fd = open(SYNAPTICS_LED_SYS_FILE, O_WRONLY);
+ int err;
+
+ if (fd < 0)
+ return;
+ err = write(fd, val, strlen(val));
+ close(fd);
+ if (err < 0)
+ xf86Msg(X_WARNING, "%s can't write LED value %s\n", pInfo->name, val);
+ }
+}
+
 /* Query device for axis ranges */
 static void
 event_query_axis_ranges(InputInfoPtr pInfo)
@@ -266,6 +294,13 @@ event_query_axis_ranges(InputInfoPtr pIn
  strcat(buf, " double");
  if ((priv->has_triple = (TEST_BIT(BTN_TOOL_TRIPLETAP, keybits) != 0)))
  strcat(buf, " triple");
+
+ /* clickpad device reports only the single left button mask */
+ if (priv->has_left && !priv->has_right && !priv->has_middle) {
+ priv->is_clickpad = TRUE;
+ xf86Msg(X_INFO, "%s: is Clickpad device\n", pInfo->name);
+ }
+
 
  if ((TEST_BIT(BTN_0, keybits) != 0) ||
  (TEST_BIT(BTN_1, keybits) != 0) ||
@@ -436,6 +471,7 @@ EventReadDevDimensions(InputInfoPtr pInf
     if (event_query_is_touchpad(pInfo->fd, (need_grab) ? *need_grab : TRUE))
  event_query_axis_ranges(pInfo);
     event_query_info(pInfo);
+ event_query_led(pInfo);
 }
 
 static Bool
@@ -495,5 +531,6 @@ struct SynapticsProtocolOperations event
     EventQueryHardware,
     EventReadHwState,
     EventAutoDevProbe,
- EventReadDevDimensions
+ EventReadDevDimensions,
+ EventUpdateLED,
 };
diff -uprN a/src/properties.c b/src/properties.c
--- a/src/properties.c 2011-02-20 20:46:37.000000000 -0500
+++ b/src/properties.c 2011-03-19 18:07:43.271845640 -0400
@@ -82,6 +82,9 @@ Atom prop_gestures = 0;
 Atom prop_capabilities = 0;
 Atom prop_resolution = 0;
 Atom prop_area = 0;
+Atom prop_led = 0;
+Atom prop_led_status = 0;
+Atom prop_led_double_tap = 0;
 Atom prop_noise_cancellation = 0;
 
 static Atom
@@ -280,6 +283,11 @@ InitDeviceProperties(InputInfoPtr pInfo)
     values[3] = para->area_bottom_edge;
     prop_area = InitAtom(pInfo->dev, SYNAPTICS_PROP_AREA, 32, 4, values);
 
+ prop_led = InitAtom(pInfo->dev, SYNAPTICS_PROP_LED, 8, 1, &para->has_led);
+ prop_led_status = InitAtom(pInfo->dev, SYNAPTICS_PROP_LED_STATUS, 8, 1, &para->led_status);
+ prop_led_double_tap = InitAtom(pInfo->dev, SYNAPTICS_PROP_LED_DOUBLE_TAP, 8, 1, &para->led_double_tap);
+
+
     values[0] = para->hyst_x;
     values[1] = para->hyst_y;
     prop_noise_cancellation = InitAtom(pInfo->dev,
@@ -510,6 +518,19 @@ SetProperty(DeviceIntPtr dev, Atom prope
             return BadValue;
 
         para->touchpad_off = off;
+ if (!checkonly && para->has_led &&
+ para->led_status != para->touchpad_off) {
+ para->led_status = para->touchpad_off;
+ if (priv->proto_ops && priv->proto_ops->UpdateLED)
+ priv->proto_ops->UpdateLED(pInfo);
+ }
+ } else if (property == prop_led_double_tap)
+ {
+ if (prop->size != 1 || prop->format != 8 || prop->type != XA_INTEGER)
+ return BadMatch;
+
+ para->led_double_tap = *(CARD8*)prop->data;
+
     } else if (property == prop_gestures)
     {
         BOOL *gestures;
@@ -656,6 +677,16 @@ SetProperty(DeviceIntPtr dev, Atom prope
         para->area_right_edge = area[1];
         para->area_top_edge = area[2];
         para->area_bottom_edge = area[3];
+ } else if (property == prop_led_status)
+ {
+ if (prop->size != 1 || prop->format != 8 || prop->type != XA_INTEGER)
+ return BadMatch;
+
+ if (para->has_led) {
+ para->led_status = *(BOOL*)prop->data;
+ if (priv->proto_ops && priv->proto_ops->UpdateLED)
+ priv->proto_ops->UpdateLED(pInfo);
+ }
     } else if (property == prop_noise_cancellation) {
         INT32 *hyst;
         if (prop->size != 2 || prop->format != 32 || prop->type != XA_INTEGER)
@@ -671,3 +702,13 @@ SetProperty(DeviceIntPtr dev, Atom prope
     return Success;
 }
 
+void SynapticsToggleOffProperty(DeviceIntPtr dev, Bool off)
+{
+ uint8_t val;
+
+ if (!prop_off)
+ return;
+ val = off;
+ XIChangeDeviceProperty(dev, prop_off, XA_INTEGER, 8,
+ PropModeReplace, 1, &val, FALSE);
+}
diff -uprN a/src/synaptics.c b/src/synaptics.c
--- a/src/synaptics.c 2011-03-03 21:36:15.000000000 -0500
+++ b/src/synaptics.c 2011-03-19 18:07:43.273845526 -0400
@@ -134,6 +134,7 @@ static void CalculateScalingCoeffs(Synap
 void InitDeviceProperties(InputInfoPtr pInfo);
 int SetProperty(DeviceIntPtr dev, Atom property, XIPropertyValuePtr prop,
                 BOOL checkonly);
+void SynapticsToggleOffProperty(DeviceIntPtr dev, Bool off);
 
 InputDriverRec SYNAPTICS = {
     1,
@@ -513,6 +514,18 @@ static void set_default_parameters(Input
         vertResolution = priv->resy;
     }
 
+ /* Clickpad mode -- bottom area is used as buttons */
+ if (priv->is_clickpad) {
+ int button_bottom;
+ /* Clickpad devices usually the button area at the bottom, and
+ * its size seems ca. 20% of the touchpad height no matter how
+ * large the pad is.
+ */
+ button_bottom = priv->maxy - (abs(priv->maxy - priv->miny) * 20) / 100;
+ if (button_bottom < b && button_bottom >= t)
+ b = button_bottom;
+ }
+
     /* set the parameters */
     pars->left_edge = xf86SetIntOption(opts, "LeftEdge", l);
     pars->right_edge = xf86SetIntOption(opts, "RightEdge", r);
@@ -593,6 +606,7 @@ static void set_default_parameters(Input
     pars->tap_and_drag_gesture = xf86SetBoolOption(opts, "TapAndDragGesture", TRUE);
     pars->resolution_horiz = xf86SetIntOption(opts, "HorizResolution", horizResolution);
     pars->resolution_vert = xf86SetIntOption(opts, "VertResolution", vertResolution);
+ pars->led_double_tap = xf86SetBoolOption(opts, "LEDDoubleTap", TRUE);
 
     /* Warn about (and fix) incorrectly configured TopEdge/BottomEdge parameters */
     if (pars->top_edge > pars->bottom_edge) {
@@ -876,6 +890,10 @@ DeviceOn(DeviceIntPtr dev)
     xf86AddEnabledDevice(pInfo);
     dev->public.on = TRUE;
 
+ /* update LED */
+ if (priv->proto_ops && priv->proto_ops->UpdateLED)
+ priv->proto_ops->UpdateLED(pInfo);
+
     return Success;
 }
 
@@ -1213,6 +1231,7 @@ timerFunc(OsTimerPtr timer, CARD32 now,
 {
     InputInfoPtr pInfo = arg;
     SynapticsPrivate *priv = (SynapticsPrivate *) (pInfo->private);
+ SynapticsParameters *para = &priv->synpara;
     struct SynapticsHwState hw;
     int delay;
     int sigstate;
@@ -1224,6 +1243,13 @@ timerFunc(OsTimerPtr timer, CARD32 now,
     hw.millis = now;
     delay = HandleState(pInfo, &hw);
 
+#if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 3
+ if (priv->prop_change_pending & 1) {
+ SynapticsToggleOffProperty(pInfo->dev, para->touchpad_off);
+ priv->prop_change_pending = 0;
+ }
+#endif
+
     /*
      * Workaround for wraparound bug in the TimerSet function. This bug is already
      * fixed in CVS, but this driver needs to work with XFree86 versions 4.2.x and
@@ -1274,6 +1300,10 @@ ReadInput(InputInfoPtr pInfo)
  hw.millis = GetTimeInMillis();
  priv->hwState = hw;
  delay = HandleState(pInfo, &hw);
+#if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 3
+ if (priv->prop_change_pending)
+ delay = MIN(10, delay);
+#endif
  newDelay = TRUE;
     }
 
@@ -2241,6 +2271,125 @@ handle_clickfinger(SynapticsParameters *
     }
 }
 
+#define LED_TOGGLE_X_AREA 0.10
+#define LED_TOGGLE_Y_AREA 0.08
+
+static int
+in_led_toggle_area(InputInfoPtr pInfo, struct SynapticsHwState *hw)
+{
+ SynapticsPrivate *priv = (SynapticsPrivate *) (pInfo->private);
+ int click_led_x, click_led_y;
+
+ click_led_x = (priv->maxx - priv->minx) * LED_TOGGLE_X_AREA + priv->minx;
+ click_led_y = (priv->maxy - priv->miny) * LED_TOGGLE_Y_AREA + priv->miny;
+ return (hw->x < click_led_x && hw->y < click_led_y);
+}
+
+/* clicpad button toggle point:
+ * some devices have a LED at the upper-left corner, and double-tapping it
+ * toggles the touchpad enable/disable
+ */
+static int
+handle_toggle_led(InputInfoPtr pInfo, struct SynapticsHwState *hw, int finger)
+{
+ SynapticsPrivate *priv = (SynapticsPrivate *) (pInfo->private);
+ SynapticsParameters *para = &priv->synpara;
+ int diff;
+
+ if (finger) {
+ if (!in_led_toggle_area(pInfo, hw)) {
+ /* outside the toggle area */
+ priv->led_touch_state = FALSE;
+ priv->led_tapped = FALSE;
+ return finger;
+ }
+ if (!priv->led_touch_state) {
+ /* touch start */
+ priv->led_touch_millis = hw->millis;
+ priv->led_touch_state = TRUE;
+ }
+ return 0; /* already processed; ignore this finger event */
+ }
+
+ if (!priv->led_touch_state)
+ return finger; /* nothing happened */
+
+ /* touch-released */
+ priv->led_touch_state = FALSE;
+ diff = TIME_DIFF(priv->led_touch_millis + para->tap_time, hw->millis);
+ if (diff < 0) { /* non-tap? */
+ priv->led_tapped = FALSE;
+ return finger;
+ }
+ if (priv->led_tapped) {
+ /* double-tapped? */
+ diff = TIME_DIFF(priv->led_tap_millis + para->tap_time_2, hw->millis);
+ if (diff >= 0) {
+ para->touchpad_off = !para->touchpad_off;
+ if (priv->proto_ops && priv->proto_ops->UpdateLED)
+ priv->proto_ops->UpdateLED(pInfo);
+ priv->prop_change_pending = 1;
+ priv->led_tapped = FALSE;
+ }
+ } else
+ priv->led_tapped = TRUE;
+ priv->led_tap_millis = hw->millis;
+ return 0; /* already processed; ignore this finger event */
+}
+
+/* clickpad event handling */
+static void
+handle_clickpad(InputInfoPtr pInfo, struct SynapticsHwState *hw, edge_type edge)
+{
+ SynapticsPrivate *priv = (SynapticsPrivate *) (pInfo->private);
+ SynapticsParameters *para = &priv->synpara;
+
+ if (edge & BOTTOM_EDGE) {
+ /* button area */
+ int width = priv->maxx - priv->minx;
+ int left_button_x, right_button_x;
+
+ /* left and right clickpad button ranges;
+ * the gap between them is interpreted as a middle-button click
+ */
+ left_button_x = width * 2/ 5 + priv->minx;
+ right_button_x = width * 3 / 5 + priv->minx;
+
+ /* clickpad reports only one button, and we need
+ * to fake left/right buttons depending on the touch position
+ */
+ if (hw->left) { /* clicked? */
+ hw->left = 0;
+ if (hw->x < left_button_x)
+ hw->left = 1;
+ else if (hw->x > right_button_x)
+ hw->right = 1;
+ else
+ hw->middle = 1;
+ }
+
+ /* Don't move pointer position in the button area during clicked,
+ * except for horiz/vert scrolling is enabled.
+ *
+ * The synaptics driver tends to be pretty sensitive. This hack
+ * is to avoid that the pointer moves slightly and misses the
+ * poistion you aimed to click.
+ *
+ * Also, when the pointer movement is reported, the dragging
+ * (with a sort of multi-touching) doesn't work well, too.
+ */
+ if (hw->left || !(para->scroll_edge_horiz ||
+ ((edge & RIGHT_EDGE) && para->scroll_edge_vert)))
+ hw->z = 0; /* don't move pointer */
+
+ } else if (hw->left) {
+ /* dragging */
+ hw->left = priv->prev_hw.left;
+ hw->right = priv->prev_hw.right;
+ hw->middle = priv->prev_hw.middle;
+ }
+ priv->prev_hw = *hw;
+}
 
 /* Update the hardware state in shared memory. This is read-only these days,
  * nothing in the driver reads back from SHM. SHM configuration is a thing of the past.
@@ -2314,6 +2463,12 @@ update_hw_button_state(const InputInfoPt
     SynapticsPrivate *priv = (SynapticsPrivate *) (pInfo->private);
     SynapticsParameters *para = &priv->synpara;
 
+ edge_type edge = edge_detection(priv, hw->x, hw->y);
+
+ /* Clickpad handling for button area */
+ if (para->touchpad_off != 1 && priv->is_clickpad)
+ handle_clickpad(pInfo, hw, edge);
+
     /* Treat the first two multi buttons as up/down for now. */
     hw->up |= hw->multi[0];
     hw->down |= hw->multi[1];
@@ -2429,7 +2584,7 @@ HandleState(InputInfoPtr pInfo, struct S
     update_shm(pInfo, hw);
 
     /* If touchpad is switched off, we skip the whole thing and return delay */
- if (para->touchpad_off == 1)
+ if (para->touchpad_off == 1 && !(para->has_led && para->led_double_tap))
  return delay;
 
     /* apply hysteresis before doing anything serious. This cancels
@@ -2473,6 +2628,15 @@ HandleState(InputInfoPtr pInfo, struct S
  finger = SynapticsDetectFinger(priv, hw);
     }
 
+ if (para->has_led && para->led_double_tap) {
+ if (inside_active_area)
+ finger = handle_toggle_led(pInfo, hw, finger);
+ if (para->touchpad_off == 1) {
+ priv->finger_state = finger;
+ return delay;
+ }
+ }
+
     /* tap and drag detection. Needs to be performed even if the finger is in
      * the dead area to reset the state. */
     timeleft = HandleTapProcessing(priv, hw, finger, inside_active_area);
diff -uprN a/src/synapticsstr.h b/src/synapticsstr.h
--- a/src/synapticsstr.h 2011-03-03 21:35:56.000000000 -0500
+++ b/src/synapticsstr.h 2011-03-19 18:07:43.276845370 -0400
@@ -160,6 +160,9 @@ typedef struct _SynapticsParameters
     unsigned int resolution_horiz; /* horizontal resolution of touchpad in units/mm */
     unsigned int resolution_vert; /* vertical resolution of touchpad in units/mm */
     int area_left_edge, area_right_edge, area_top_edge, area_bottom_edge; /* area coordinates absolute */
+ Bool has_led; /* has an embedded LED */
+ Bool led_status; /* Current status of LED (1=on) */
+ Bool led_double_tap; /* double-tap period in ms for touchpad LED control */
     int hyst_x, hyst_y; /* x and y width of hysteresis box */
 } SynapticsParameters;
 
@@ -239,6 +242,14 @@ typedef struct _SynapticsPrivateRec
     Bool has_pressure; /* device reports pressure */
     Bool has_width; /* device reports finger width */
     Bool has_scrollbuttons; /* device has physical scrollbuttons */
+ Bool is_clickpad; /* is Clickpad device (one-button) */
+ struct SynapticsHwState prev_hw; /* previous h/w state (for clickpad) */
+ int prop_change_pending;
+ Bool led_touch_state;
+ Bool led_tapped;
+ int led_touch_millis;
+ int led_tap_millis;
+
 
     enum TouchpadModel model; /* The detected model */
 } SynapticsPrivate;
diff -uprN a/src/synproto.h b/src/synproto.h
--- a/src/synproto.h 2011-03-03 21:35:56.000000000 -0500
+++ b/src/synproto.h 2011-03-19 18:07:39.626953966 -0400
@@ -91,6 +91,7 @@ struct SynapticsProtocolOperations {
  struct CommData *comm, struct SynapticsHwState *hwRet);
     Bool (*AutoDevProbe)(InputInfoPtr pInfo);
     void (*ReadDevDimensions)(InputInfoPtr pInfo);
+ void (*UpdateLED)(InputInfoPtr pInfo);
 };
 
 extern struct SynapticsProtocolOperations psaux_proto_operations;
diff -uprN a/tools/synclient.c b/tools/synclient.c
--- a/tools/synclient.c 2011-02-16 19:59:16.000000000 -0500
+++ b/tools/synclient.c 2011-03-19 18:07:43.277845322 -0400
@@ -143,5 +143,7 @@ static struct Parameter params[] = {
     {"AreaRightEdge", PT_INT, 0, 10000, SYNAPTICS_PROP_AREA, 32, 1},
     {"AreaTopEdge", PT_INT, 0, 10000, SYNAPTICS_PROP_AREA, 32, 2},
     {"AreaBottomEdge", PT_INT, 0, 10000, SYNAPTICS_PROP_AREA, 32, 3},
+ {"LEDStatus", PT_BOOL, 0, 1, SYNAPTICS_PROP_LED_STATUS, 8, 0},
+ {"LEDDoubleTap", PT_BOOL, 0, 1, SYNAPTICS_PROP_LED_DOUBLE_TAP, 8, 0},
     { NULL, 0, 0, 0, 0 }
 };
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