HID: merge hid-egalax into hid-multitouch
This patch merges the hid-egalax driver into hid-multitouch. There
are two types of devices support by the hid-egalax driver: resistive
and capacitive. Here, they are implicitly distinguished by the absence
of a HID_DG_CONTACTCOUNT field in the latter, so no special code path
needs to be introduced.
As a side effect, this patch fixes the broken suspend/resume behavior
in the old driver.
[rydberg@euromail.se: minor fixups]
Signed-off-by: Richard Nauber <Richard.Nauber@gmail.com>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 4518006..af5a709 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.
+ *
*/
/*
@@ -37,6 +43,7 @@
#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;
@@ -70,6 +77,7 @@
#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
@@ -120,6 +128,14 @@
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,
+ },
{ }
};
@@ -147,11 +163,15 @@
{
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,
@@ -161,6 +181,8 @@
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,
@@ -204,6 +226,8 @@
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,
@@ -487,6 +511,25 @@
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);