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path: root/drivers/hid/hid-multitouch.c
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Diffstat (limited to 'drivers/hid/hid-multitouch.c')
-rw-r--r--drivers/hid/hid-multitouch.c76
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);