Input: wacom - do not send 2FGT Tablet PC events in TAP format

2FGT Tablet PC touch events were processed in _TAP_ format. Remove
them so we can change to _MT_ format.

Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

2 files changed, 10 insertions, 79 deletions

diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index 367fa82a607e..5488c6172621 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -675,40 +675,6 @@ static int wacom_intuos_irq(struct wacom_wac *wacom)
         return 1;
 }
 
-
-static void wacom_tpc_finger_in(struct wacom_wac *wacom, char *data, int idx)
-{
-        struct input_dev *input = wacom->input;
-        int finger = idx + 1;
-        int x = le16_to_cpup((__le16 *)&data[finger * 2]) & 0x7fff;
-        int y = le16_to_cpup((__le16 *)&data[4 + finger * 2]) & 0x7fff;
-
-        /*
-         * Work around input core suppressing "duplicate" events since
-         * we are abusing ABS_X/ABS_Y to transmit multi-finger data.
-         * This should go away once we switch to true multitouch
-         * protocol.
-         */
-        if (wacom->last_finger != finger) {
-                if (x == input_abs_get_val(input, ABS_X))
-                        x++;
-
-                if (y == input_abs_get_val(input, ABS_Y))
-                        y++;
-        }
-
-        input_report_abs(input, ABS_X, x);
-        input_report_abs(input, ABS_Y, y);
-        input_report_abs(input, ABS_MISC, wacom->id[0]);
-        input_report_key(input, wacom->tool[finger], 1);
-        if (!idx)
-                input_report_key(input, BTN_TOUCH, 1);
-        input_event(input, EV_MSC, MSC_SERIAL, finger);
-        input_sync(input);
-
-        wacom->last_finger = finger;
-}
-
 static void wacom_tpc_touch_out(struct wacom_wac *wacom, int idx)
 {
         struct input_dev *input = wacom->input;
@@ -731,7 +697,6 @@ static void wacom_tpc_touch_in(struct wacom_wac *wacom, size_t len)
 
         wacom->tool[1] = BTN_TOOL_DOUBLETAP;
         wacom->id[0] = TOUCH_DEVICE_ID;
-        wacom->tool[2] = BTN_TOOL_TRIPLETAP;
 
         if (len != WACOM_PKGLEN_TPC1FG) {
 
@@ -746,18 +711,6 @@ static void wacom_tpc_touch_in(struct wacom_wac *wacom, size_t len)
                         input_report_key(input, wacom->tool[1], 1);
                         input_sync(input);
                         break;
-
-                case WACOM_REPORT_TPC2FG:
-                        if (data[1] & 0x01)
-                                wacom_tpc_finger_in(wacom, data, 0);
-                        else if (wacom->id[1] & 0x01)
-                                wacom_tpc_touch_out(wacom, 0);
-
-                        if (data[1] & 0x02)
-                                wacom_tpc_finger_in(wacom, data, 1);
-                        else if (wacom->id[1] & 0x02)
-                                wacom_tpc_touch_out(wacom, 1);
-                        break;
                 }
         } else {
                 input_report_abs(input, ABS_X, get_unaligned_le16(&data[1]));
@@ -779,47 +732,26 @@ static int wacom_tpc_irq(struct wacom_wac *wacom, size_t len)
 
         dbg("wacom_tpc_irq: received report #%d", data[0]);
 
-        if (len == WACOM_PKGLEN_TPC1FG ||                /* single touch */
-            data[0] == WACOM_REPORT_TPC1FG ||            /* single touch */
-            data[0] == WACOM_REPORT_TPC2FG) {            /* 2FG touch */
+        if (len == WACOM_PKGLEN_TPC1FG ||
+            data[0] == WACOM_REPORT_TPC1FG) {   /* single touch */
 
                 if (wacom->shared->stylus_in_proximity) {
                         if (wacom->id[1] & 0x01)
                                 wacom_tpc_touch_out(wacom, 0);
 
-                        if (wacom->id[1] & 0x02)
-                                wacom_tpc_touch_out(wacom, 1);
-
                         wacom->id[1] = 0;
                         return 0;
                 }
 
-                if (len == WACOM_PKGLEN_TPC1FG) {       /* with touch */
+                if (len == WACOM_PKGLEN_TPC1FG)
                         prox = data[0] & 0x01;
-                } else {  /* with capacity */
-                        if (data[0] == WACOM_REPORT_TPC1FG)
-                                /* single touch */
-                                prox = data[1] & 0x01;
-                        else
-                                /* 2FG touch data */
-                                prox = data[1] & 0x03;
-                }
+                else  /* with capacity */
+                        prox = data[1] & 0x01;
 
-                if (prox) {
-                        if (!wacom->id[1])
-                                wacom->last_finger = 1;
+                if (prox)
                         wacom_tpc_touch_in(wacom, len);
-                } else {
-                        if (data[0] == WACOM_REPORT_TPC2FG) {
-                                /* 2FGT out-prox */
-                                if (wacom->id[1] & 0x01)
-                                        wacom_tpc_touch_out(wacom, 0);
-
-                                if (wacom->id[1] & 0x02)
-                                        wacom_tpc_touch_out(wacom, 1);
-                        } else
-                                /* one finger touch */
-                                wacom_tpc_touch_out(wacom, 0);
+                else {
+                        wacom_tpc_touch_out(wacom, 0);
 
                         wacom->id[0] = 0;
                 }
diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h
index b1310ec9720c..8f747dd1214e 100644
--- a/drivers/input/tablet/wacom_wac.h
+++ b/drivers/input/tablet/wacom_wac.h
@@ -93,10 +93,9 @@ struct wacom_shared {
 struct wacom_wac {
         char name[64];
         unsigned char *data;
-        int tool[3];
-        int id[3];
+        int tool[2];
+        int id[2];
         __u32 serial[2];
-        int last_finger;
         struct wacom_features features;
         struct wacom_shared *shared;
         struct input_dev *input;