Input: wacom - get rid of wacom_combo structure

Now that we moved input device from struct wacom to struct wacom_wac,
presence of wacom_combo just complicats things for no good reason.
Let's get rid of it and simply pass URB length to wacom_wac_irq().

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

3 files changed, 47 insertions, 53 deletions

diff --git a/drivers/input/tablet/wacom.h b/drivers/input/tablet/wacom.h
index 103a8cc2944..56a37074e0d 100644
--- a/drivers/input/tablet/wacom.h
+++ b/drivers/input/tablet/wacom.h
@@ -115,14 +115,9 @@ struct wacom {
         char phys[32];
 };
 
-struct wacom_combo {
-        struct wacom *wacom;
-        struct urb *urb;
-};
-
 extern const struct usb_device_id wacom_ids[];
 
-int wacom_wac_irq(struct wacom_wac * wacom_wac, void * wcombo);
+void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len);
 void wacom_setup_input_capabilities(struct input_dev *input_dev,
                                     struct wacom_wac *wacom_wac);
 __u16 wacom_le16_to_cpu(unsigned char *data);
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index 58bb763b60d..c37e22b968d 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -70,15 +70,9 @@ static int usb_set_report(struct usb_interface *intf, unsigned char type,
                 buf, size, 1000);
 }
 
-static struct input_dev * get_input_dev(struct wacom_combo *wcombo)
-{
-        return wcombo->wacom->wacom_wac.input;
-}
-
 static void wacom_sys_irq(struct urb *urb)
 {
         struct wacom *wacom = urb->context;
-        struct wacom_combo wcombo;
         int retval;
 
         switch (urb->status) {
@@ -96,11 +90,7 @@ static void wacom_sys_irq(struct urb *urb)
                 goto exit;
         }
 
-        wcombo.wacom = wacom;
-        wcombo.urb = urb;
-
-        if (wacom_wac_irq(&wacom->wacom_wac, &wcombo))
-                input_sync(get_input_dev(&wcombo));
+        wacom_wac_irq(&wacom->wacom_wac, urb->actual_length);
 
  exit:
         usb_mark_last_busy(wacom->usbdev);
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index 9cf4854a981..8163e8f06f2 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -15,7 +15,7 @@
 #include "wacom_wac.h"
 #include "wacom.h"
 
-static int wacom_penpartner_irq(struct wacom_wac *wacom, void *wcombo)
+static int wacom_penpartner_irq(struct wacom_wac *wacom)
 {
         unsigned char *data = wacom->data;
         struct input_dev *input = wacom->input;
@@ -58,7 +58,7 @@ static int wacom_penpartner_irq(struct wacom_wac *wacom, void *wcombo)
         return 1;
 }
 
-static int wacom_pl_irq(struct wacom_wac *wacom, void *wcombo)
+static int wacom_pl_irq(struct wacom_wac *wacom)
 {
         struct wacom_features *features = &wacom->features;
         unsigned char *data = wacom->data;
@@ -130,7 +130,7 @@ static int wacom_pl_irq(struct wacom_wac *wacom, void *wcombo)
         return 1;
 }
 
-static int wacom_ptu_irq(struct wacom_wac *wacom, void *wcombo)
+static int wacom_ptu_irq(struct wacom_wac *wacom)
 {
         unsigned char *data = wacom->data;
         struct input_dev *input = wacom->input;
@@ -158,7 +158,7 @@ static int wacom_ptu_irq(struct wacom_wac *wacom, void *wcombo)
         return 1;
 }
 
-static int wacom_graphire_irq(struct wacom_wac *wacom, void *wcombo)
+static int wacom_graphire_irq(struct wacom_wac *wacom)
 {
         struct wacom_features *features = &wacom->features;
         unsigned char *data = wacom->data;
@@ -269,7 +269,7 @@ exit:
         return retval;
 }
 
-static int wacom_intuos_inout(struct wacom_wac *wacom, void *wcombo)
+static int wacom_intuos_inout(struct wacom_wac *wacom)
 {
         struct wacom_features *features = &wacom->features;
         unsigned char *data = wacom->data;
@@ -396,7 +396,7 @@ static int wacom_intuos_inout(struct wacom_wac *wacom, void *wcombo)
         return 0;
 }
 
-static void wacom_intuos_general(struct wacom_wac *wacom, void *wcombo)
+static void wacom_intuos_general(struct wacom_wac *wacom)
 {
         struct wacom_features *features = &wacom->features;
         unsigned char *data = wacom->data;
@@ -427,7 +427,7 @@ static void wacom_intuos_general(struct wacom_wac *wacom, void *wcombo)
         }
 }
 
-static int wacom_intuos_irq(struct wacom_wac *wacom, void *wcombo)
+static int wacom_intuos_irq(struct wacom_wac *wacom)
 {
         struct wacom_features *features = &wacom->features;
         unsigned char *data = wacom->data;
@@ -504,7 +504,7 @@ static int wacom_intuos_irq(struct wacom_wac *wacom, void *wcombo)
         }
 
         /* process in/out prox events */
-        result = wacom_intuos_inout(wacom, wcombo);
+        result = wacom_intuos_inout(wacom);
         if (result)
                 return result - 1;
 
@@ -537,7 +537,7 @@ static int wacom_intuos_irq(struct wacom_wac *wacom, void *wcombo)
         }
 
         /* process general packets */
-        wacom_intuos_general(wacom, wcombo);
+        wacom_intuos_general(wacom);
 
         /* 4D mouse, 2D mouse, marker pen rotation, tilt mouse, or Lens cursor packets */
         if ((data[1] & 0xbc) == 0xa8 || (data[1] & 0xbe) == 0xb0 || (data[1] & 0xbc) == 0xac) {
@@ -615,7 +615,7 @@ static int wacom_intuos_irq(struct wacom_wac *wacom, void *wcombo)
 }
 
 
-static void wacom_tpc_finger_in(struct wacom_wac *wacom, void *wcombo, char *data, int idx)
+static void wacom_tpc_finger_in(struct wacom_wac *wacom, char *data, int idx)
 {
         struct input_dev *input = wacom->input;
 
@@ -631,7 +631,7 @@ static void wacom_tpc_finger_in(struct wacom_wac *wacom, void *wcombo, char *dat
                 input_report_key(input, BTN_TOUCH, 1);
 }
 
-static void wacom_tpc_touch_out(struct wacom_wac *wacom, void *wcombo, int idx)
+static void wacom_tpc_touch_out(struct wacom_wac *wacom, int idx)
 {
         struct input_dev *input = wacom->input;
 
@@ -645,11 +645,10 @@ static void wacom_tpc_touch_out(struct wacom_wac *wacom, void *wcombo, int idx)
                 input_report_key(input, BTN_TOUCH, 0);
 }
 
-static void wacom_tpc_touch_in(struct wacom_wac *wacom, void *wcombo)
+static void wacom_tpc_touch_in(struct wacom_wac *wacom, size_t len)
 {
         char *data = wacom->data;
         struct input_dev *input = wacom->input;
-        struct urb *urb = ((struct wacom_combo *)wcombo)->urb;
         static int firstFinger = 0;
         static int secondFinger = 0;
 
@@ -657,7 +656,7 @@ static void wacom_tpc_touch_in(struct wacom_wac *wacom, void *wcombo)
         wacom->id[0] = TOUCH_DEVICE_ID;
         wacom->tool[1] = BTN_TOOL_TRIPLETAP;
 
-        if (urb->actual_length != WACOM_PKGLEN_TPC1FG) {
+        if (len != WACOM_PKGLEN_TPC1FG) {
 
                 switch (data[0]) {
 
@@ -675,10 +674,10 @@ static void wacom_tpc_touch_in(struct wacom_wac *wacom, void *wcombo)
                         wacom->id[1] = data[1] & 0x03;
 
                         if (data[1] & 0x01) {
-                                wacom_tpc_finger_in(wacom, wcombo, data, 0);
+                                wacom_tpc_finger_in(wacom, data, 0);
                                 firstFinger = 1;
                         } else if (firstFinger) {
-                                wacom_tpc_touch_out(wacom, wcombo, 0);
+                                wacom_tpc_touch_out(wacom, 0);
                         }
 
                         if (data[1] & 0x02) {
@@ -686,14 +685,14 @@ static void wacom_tpc_touch_in(struct wacom_wac *wacom, void *wcombo)
                                 if (firstFinger)
                                         input_sync(input);
 
-                                wacom_tpc_finger_in(wacom, wcombo, data, 1);
+                                wacom_tpc_finger_in(wacom, data, 1);
                                 secondFinger = 1;
                         } else if (secondFinger) {
                                 /* sync first finger data */
                                 if (firstFinger)
                                         input_sync(input);
 
-                                wacom_tpc_touch_out(wacom, wcombo, 1);
+                                wacom_tpc_touch_out(wacom, 1);
                                 secondFinger = 0;
                         }
                         if (!(data[1] & 0x01))
@@ -709,20 +708,19 @@ static void wacom_tpc_touch_in(struct wacom_wac *wacom, void *wcombo)
         }
 }
 
-static int wacom_tpc_irq(struct wacom_wac *wacom, void *wcombo)
+static int wacom_tpc_irq(struct wacom_wac *wacom, size_t len)
 {
         struct wacom_features *features = &wacom->features;
         char *data = wacom->data;
         struct input_dev *input = wacom->input;
         int prox = 0, pressure, idx = -1;
-        struct urb *urb = ((struct wacom_combo *)wcombo)->urb;
 
         dbg("wacom_tpc_irq: received report #%d", data[0]);
 
-        if (urb->actual_length == WACOM_PKGLEN_TPC1FG || /* single touch */
+        if (len == WACOM_PKGLEN_TPC1FG ||                /* single touch */
             data[0] == WACOM_REPORT_TPC1FG ||            /* single touch */
             data[0] == WACOM_REPORT_TPC2FG) {            /* 2FG touch */
-                if (urb->actual_length == WACOM_PKGLEN_TPC1FG) {  /* with touch */
+                if (len == WACOM_PKGLEN_TPC1FG) {       /* with touch */
                         prox = data[0] & 0x01;
                 } else {  /* with capacity */
                         if (data[0] == WACOM_REPORT_TPC1FG)
@@ -735,28 +733,28 @@ static int wacom_tpc_irq(struct wacom_wac *wacom, void *wcombo)
 
                 if (!wacom->shared->stylus_in_proximity) {
                         if (prox) {
-                                wacom_tpc_touch_in(wacom, wcombo);
+                                wacom_tpc_touch_in(wacom, len);
                         } else {
                                 if (data[0] == WACOM_REPORT_TPC2FG) {
                                         /* 2FGT out-prox */
                                         idx = (wacom->id[1] & 0x01) - 1;
                                         if (idx == 0) {
-                                                wacom_tpc_touch_out(wacom, wcombo, idx);
+                                                wacom_tpc_touch_out(wacom, idx);
                                                 /* sync first finger event */
                                                 if (wacom->id[1] & 0x02)
                                                         input_sync(input);
                                         }
                                         idx = (wacom->id[1] & 0x02) - 1;
                                         if (idx == 1)
-                                                wacom_tpc_touch_out(wacom, wcombo, idx);
+                                                wacom_tpc_touch_out(wacom, idx);
                                 } else {
                                         /* one finger touch */
-                                        wacom_tpc_touch_out(wacom, wcombo, 0);
+                                        wacom_tpc_touch_out(wacom, 0);
                                 }
                                 wacom->id[0] = 0;
                         }
                 } else if (wacom->id[0]) { /* force touch out-prox */
-                        wacom_tpc_touch_out(wacom, wcombo, 0);
+                        wacom_tpc_touch_out(wacom, 0);
                 }
                 return 1;
         } else if (data[0] == WACOM_REPORT_PENABLED) { /* Penabled */
@@ -792,22 +790,28 @@ static int wacom_tpc_irq(struct wacom_wac *wacom, void *wcombo)
         return 0;
 }
 
-int wacom_wac_irq(struct wacom_wac *wacom_wac, void *wcombo)
+void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
 {
+        bool sync;
+
         switch (wacom_wac->features.type) {
         case PENPARTNER:
-                return wacom_penpartner_irq(wacom_wac, wcombo);
+                sync = wacom_penpartner_irq(wacom_wac);
+                break;
 
         case PL:
-                return wacom_pl_irq(wacom_wac, wcombo);
+                sync = wacom_pl_irq(wacom_wac);
+                break;
 
         case WACOM_G4:
         case GRAPHIRE:
         case WACOM_MO:
-                return wacom_graphire_irq(wacom_wac, wcombo);
+                sync = wacom_graphire_irq(wacom_wac);
+                break;
 
         case PTU:
-                return wacom_ptu_irq(wacom_wac, wcombo);
+                sync = wacom_ptu_irq(wacom_wac);
+                break;
 
         case INTUOS:
         case INTUOS3S:
@@ -818,16 +822,21 @@ int wacom_wac_irq(struct wacom_wac *wacom_wac, void *wcombo)
         case INTUOS4L:
         case CINTIQ:
         case WACOM_BEE:
-                return wacom_intuos_irq(wacom_wac, wcombo);
+                sync = wacom_intuos_irq(wacom_wac);
+                break;
 
         case TABLETPC:
         case TABLETPC2FG:
-                return wacom_tpc_irq(wacom_wac, wcombo);
+                sync = wacom_tpc_irq(wacom_wac, len);
+                break;
 
         default:
-                return 0;
+                sync = false;
+                break;
         }
-        return 0;
+
+        if (sync)
+                input_sync(wacom_wac->input);
 }
 
 static void wacom_setup_intuos(struct wacom_wac *wacom_wac)