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HID: hid-multitouch: add support for Cypress TrueTouch panels 

Added support for Cypress TrueTouch panels, which detect up to 10 fingers

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@enac.fr>
Signed-off-by: Stéphane Chatty <chatty@enac.fr>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Benjamin Tissoires 2011-01-07 23:46:30 +01:00 committed by Jiri Kosina
parent 5519cab477
commit a3b5e577d9
4 changed files with 22 additions and 0 deletions
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1
drivers/hid/Kconfig
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@ -293,6 +293,7 @@ config HID_MULTITOUCH
Say Y here if you have one of the following devices:
- PixCir touchscreen
- Cypress TrueTouch
config HID_NTRIG
tristate "N-Trig touch screen"

1
drivers/hid/hid-core.c
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@ -1298,6 +1298,7 @@ static const struct hid_device_id hid_blacklist[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
{ HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH) },
{ HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1) },

1
drivers/hid/hid-ids.h
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@ -180,6 +180,7 @@
#define USB_DEVICE_ID_CYPRESS_BARCODE_1 0xde61
#define USB_DEVICE_ID_CYPRESS_BARCODE_2 0xde64
#define USB_DEVICE_ID_CYPRESS_BARCODE_3 0xbca1
#define USB_DEVICE_ID_CYPRESS_TRUETOUCH 0xc001
#define USB_VENDOR_ID_DEALEXTREAME 0x10c5
#define USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701 0x819a

19
drivers/hid/hid-multitouch.c
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@ -32,6 +32,7 @@ MODULE_LICENSE("GPL");
/* quirks to control the device */
#define MT_QUIRK_NOT_SEEN_MEANS_UP (1 << 0)
#define MT_QUIRK_SLOT_IS_CONTACTID (1 << 1)
#define MT_QUIRK_CYPRESS (1 << 2)
struct mt_slot {
__s32 x, y, p, w, h;
@ -62,6 +63,7 @@ struct mt_class {
/* classes of device behavior */
#define MT_CLS_DEFAULT 0
#define MT_CLS_DUAL1 1
#define MT_CLS_CYPRESS 2
/*
* these device-dependent functions determine what slot corresponds
@ -73,6 +75,14 @@ static int slot_is_contactid(struct mt_device *td)
return td->curdata.contactid;
}
static int cypress_compute_slot(struct mt_device *td)
{
if (td->curdata.contactid != 0 || td->num_received == 0)
return td->curdata.contactid;
else
return -1;
}
static int find_slot_from_contactid(struct mt_device *td)
{
int i;
@ -95,6 +105,7 @@ static int find_slot_from_contactid(struct mt_device *td)
struct mt_class mt_classes[] = {
{ 0, 0, 0, 10 }, /* MT_CLS_DEFAULT */
{ MT_QUIRK_SLOT_IS_CONTACTID, 0, 0, 2 }, /* MT_CLS_DUAL1 */
{ MT_QUIRK_CYPRESS | MT_QUIRK_NOT_SEEN_MEANS_UP, 0, 0, 10 }, /* MT_CLS_CYPRESS */
};
static void mt_feature_mapping(struct hid_device *hdev, struct hid_input *hi,
@ -223,6 +234,9 @@ static int mt_compute_slot(struct mt_device *td)
if (cls->quirks & MT_QUIRK_SLOT_IS_CONTACTID)
return slot_is_contactid(td);
if (cls->quirks & MT_QUIRK_CYPRESS)
return cypress_compute_slot(td);
return find_slot_from_contactid(td);
}
@ -422,6 +436,11 @@ static void mt_remove(struct hid_device *hdev)
static const struct hid_device_id mt_devices[] = {
/* Cypress panel */
{ .driver_data = MT_CLS_CYPRESS,
HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS,
USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
/* PixCir-based panels */
{ .driver_data = MT_CLS_DUAL1,
HID_USB_DEVICE(USB_VENDOR_ID_HANVON,