Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-linus-1

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6: (9356 commits)
  [media] rc: update for bitop name changes
  fs: simplify iget & friends
  fs: pull inode->i_lock up out of writeback_single_inode
  fs: rename inode_lock to inode_hash_lock
  fs: move i_wb_list out from under inode_lock
  fs: move i_sb_list out from under inode_lock
  fs: remove inode_lock from iput_final and prune_icache
  fs: Lock the inode LRU list separately
  fs: factor inode disposal
  fs: protect inode->i_state with inode->i_lock
  lib, arch: add filter argument to show_mem and fix private implementations
  SLUB: Write to per cpu data when allocating it
  slub: Fix debugobjects with lockless fastpath
  autofs4: Do not potentially dereference NULL pointer returned by fget() in autofs_dev_ioctl_setpipefd()
  autofs4 - remove autofs4_lock
  autofs4 - fix d_manage() return on rcu-walk
  autofs4 - fix autofs4_expire_indirect() traversal
  autofs4 - fix dentry leak in autofs4_expire_direct()
  autofs4 - reinstate last used update on access
  vfs - check non-mountpoint dentry might block in __follow_mount_rcu()
  ...

NOTE!

This merge commit was created to fix compilation error. The block
tree was merged upstream and removed the 'elv_queue_empty()'
function which the new 'mtdswap' driver is using. So a simple
merge of the mtd tree with upstream does not compile. And the
mtd tree has already be published, so re-basing it is not an option.

To fix this unfortunate situation, I had to merge upstream into the
mtd-2.6.git tree without committing, put the fixup patch on top of
this, and then commit this. The result is that we do not have commits
which do not compile.

In other words, this merge commit "merges" 3 things: the MTD tree, the
upstream tree, and the fixup patch.

1 files changed, 64 insertions, 12 deletions

diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 07d3183fdde5..ee01e65e22d6 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -5,6 +5,12 @@
  *  Copyright (c) 2010-2011 Benjamin Tissoires <benjamin.tissoires@gmail.com>
  *  Copyright (c) 2010-2011 Ecole Nationale de l'Aviation Civile, France
  *
+ *  This code is partly based on hid-egalax.c:
+ *
+ *  Copyright (c) 2010 Stephane Chatty <chatty@enac.fr>
+ *  Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se>
+ *  Copyright (c) 2010 Canonical, Ltd.
+ *
  */
 
 /*
@@ -24,6 +30,7 @@
 
 
 MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
+MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");
 MODULE_DESCRIPTION("HID multitouch panels");
 MODULE_LICENSE("GPL");
 
@@ -36,6 +43,7 @@ MODULE_LICENSE("GPL");
 #define MT_QUIRK_SLOT_IS_CONTACTNUMBER	(1 << 3)
 #define MT_QUIRK_VALID_IS_INRANGE	(1 << 4)
 #define MT_QUIRK_VALID_IS_CONFIDENCE	(1 << 5)
+#define MT_QUIRK_EGALAX_XYZ_FIXUP	(1 << 6)
 
 struct mt_slot {
 	__s32 x, y, p, w, h;
@@ -65,10 +73,11 @@ struct mt_class {
 };
 
 /* classes of device behavior */
-#define MT_CLS_DEFAULT	1
-#define MT_CLS_DUAL1	2
-#define MT_CLS_DUAL2	3
-#define MT_CLS_CYPRESS	4
+#define MT_CLS_DEFAULT				1
+#define MT_CLS_DUAL_INRANGE_CONTACTID		2
+#define MT_CLS_DUAL_INRANGE_CONTACTNUMBER	3
+#define MT_CLS_CYPRESS				4
+#define MT_CLS_EGALAX				5
 
 /*
  * these device-dependent functions determine what slot corresponds
@@ -104,13 +113,13 @@ static int find_slot_from_contactid(struct mt_device *td)
 
 struct mt_class mt_classes[] = {
 	{ .name = MT_CLS_DEFAULT,
-		.quirks = MT_QUIRK_VALID_IS_INRANGE,
+		.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP,
 		.maxcontacts = 10 },
-	{ .name = MT_CLS_DUAL1,
+	{ .name = MT_CLS_DUAL_INRANGE_CONTACTID,
 		.quirks = MT_QUIRK_VALID_IS_INRANGE |
 			MT_QUIRK_SLOT_IS_CONTACTID,
 		.maxcontacts = 2 },
-	{ .name = MT_CLS_DUAL2,
+	{ .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
 		.quirks = MT_QUIRK_VALID_IS_INRANGE |
 			MT_QUIRK_SLOT_IS_CONTACTNUMBER,
 		.maxcontacts = 2 },
@@ -119,10 +128,18 @@ struct mt_class mt_classes[] = {
 			MT_QUIRK_CYPRESS,
 		.maxcontacts = 10 },
 
+	{ .name = MT_CLS_EGALAX,
+		.quirks =  MT_QUIRK_SLOT_IS_CONTACTID |
+			MT_QUIRK_VALID_IS_INRANGE |
+			MT_QUIRK_EGALAX_XYZ_FIXUP,
+		.maxcontacts = 2,
+		.sn_move = 4096,
+		.sn_pressure = 32,
+	},
 	{ }
 };
 
-static void mt_feature_mapping(struct hid_device *hdev, struct hid_input *hi,
+static void mt_feature_mapping(struct hid_device *hdev,
 		struct hid_field *field, struct hid_usage *usage)
 {
 	if (usage->hid == HID_DG_INPUTMODE) {
@@ -146,11 +163,15 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 {
 	struct mt_device *td = hid_get_drvdata(hdev);
 	struct mt_class *cls = td->mtclass;
+	__s32 quirks = cls->quirks;
+
 	switch (usage->hid & HID_USAGE_PAGE) {
 
 	case HID_UP_GENDESK:
 		switch (usage->hid) {
 		case HID_GD_X:
+			if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP)
+				field->logical_maximum = 32760;
 			hid_map_usage(hi, usage, bit, max,
 					EV_ABS, ABS_MT_POSITION_X);
 			set_abs(hi->input, ABS_MT_POSITION_X, field,
@@ -160,6 +181,8 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 			td->last_slot_field = usage->hid;
 			return 1;
 		case HID_GD_Y:
+			if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP)
+				field->logical_maximum = 32760;
 			hid_map_usage(hi, usage, bit, max,
 					EV_ABS, ABS_MT_POSITION_Y);
 			set_abs(hi->input, ABS_MT_POSITION_Y, field,
@@ -203,6 +226,8 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 			td->last_slot_field = usage->hid;
 			return 1;
 		case HID_DG_TIPPRESSURE:
+			if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP)
+				field->logical_minimum = 0;
 			hid_map_usage(hi, usage, bit, max,
 					EV_ABS, ABS_MT_PRESSURE);
 			set_abs(hi->input, ABS_MT_PRESSURE, field,
@@ -363,8 +388,11 @@ static int mt_event(struct hid_device *hid, struct hid_field *field,
 			return 0;
 		}
 
-		if (usage->hid == td->last_slot_field)
+		if (usage->hid == td->last_slot_field) {
 			mt_complete_slot(td);
+			if (!td->last_field_index)
+				mt_emit_event(td, field->hidinput->input);
+		}
 
 		if (field->index == td->last_field_index
 			&& td->num_received >= td->num_expected)
@@ -466,18 +494,42 @@ static const struct hid_device_id mt_devices[] = {
 			USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
 
 	/* GeneralTouch panel */
-	{ .driver_data = MT_CLS_DUAL2,
+	{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
 		HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
 			USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
 
+	/* IRTOUCH panels */
+	{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
+		HID_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS,
+			USB_DEVICE_ID_IRTOUCH_INFRARED_USB) },
+
 	/* PixCir-based panels */
-	{ .driver_data = MT_CLS_DUAL1,
+	{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
 		HID_USB_DEVICE(USB_VENDOR_ID_HANVON,
 			USB_DEVICE_ID_HANVON_MULTITOUCH) },
-	{ .driver_data = MT_CLS_DUAL1,
+	{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
 		HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
 			USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
 
+	/* Resistive eGalax devices */
+	{  .driver_data = MT_CLS_EGALAX,
+		HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH) },
+	{  .driver_data = MT_CLS_EGALAX,
+		HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH3) },
+
+	/* Capacitive eGalax devices */
+	{  .driver_data = MT_CLS_EGALAX,
+		HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1) },
+	{  .driver_data = MT_CLS_EGALAX,
+		HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH2) },
+	{  .driver_data = MT_CLS_EGALAX,
+		HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH4) },
+
 	{ }
 };
 MODULE_DEVICE_TABLE(hid, mt_devices);