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Subject[PATCH v2] HID: hid-multitouch: Add Flatfrog support
Add support for the Flatfrog Multitouch 3200 panel. This panel
advertises some fields that it does not use, hence the new quirk.

Cc: Pablo Cases <pablo.cases@flatfrog.com>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
---
The Flatfrog team pointed out that the pressure information, which is
currently present but set to a fixed value, is a scheduled firmware
update. Therefore, ignoring the pressure information seems
unnecessary, and I agree. This version is without the pressure quirk,
and will be pushed to the maybe branch in a couple of days.
Thanks,
Henrik

drivers/hid/hid-ids.h | 3 +++
drivers/hid/hid-multitouch.c | 26 +++++++++++++++++++++-----
2 files changed, 24 insertions(+), 5 deletions(-)
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 1dcb76f..c843db9 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -283,6 +283,9 @@
#define USB_VENDOR_ID_EMS 0x2006
#define USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II 0x0118

+#define USB_VENDOR_ID_FLATFROG 0x25b5
+#define USB_DEVICE_ID_MULTITOUCH_3200 0x0002
+
#define USB_VENDOR_ID_ESSENTIAL_REALITY 0x0d7f
#define USB_DEVICE_ID_ESSENTIAL_REALITY_P5 0x0100

diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 63f120b..ee0b76b 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -51,6 +51,7 @@ MODULE_LICENSE("GPL");
#define MT_QUIRK_VALID_IS_INRANGE (1 << 5)
#define MT_QUIRK_VALID_IS_CONFIDENCE (1 << 6)
#define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE (1 << 8)
+#define MT_QUIRK_NO_AREA (1 << 9)

struct mt_slot {
__s32 x, y, p, w, h;
@@ -115,6 +116,7 @@ struct mt_device {
#define MT_CLS_EGALAX_SERIAL 0x0104
#define MT_CLS_TOPSEED 0x0105
#define MT_CLS_PANASONIC 0x0106
+#define MT_CLS_FLATFROG 0x0107

#define MT_DEFAULT_MAXCONTACT 10

@@ -199,6 +201,12 @@ static struct mt_class mt_classes[] = {
.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP,
.maxcontacts = 4 },

+ { .name = MT_CLS_FLATFROG,
+ .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
+ MT_QUIRK_NO_AREA,
+ .sn_move = 2048,
+ .maxcontacts = 40,
+ },
{ }
};

@@ -366,18 +374,21 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
case HID_DG_WIDTH:
hid_map_usage(hi, usage, bit, max,
EV_ABS, ABS_MT_TOUCH_MAJOR);
- set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
- cls->sn_width);
+ if (!(cls->quirks & MT_QUIRK_NO_AREA))
+ set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
+ cls->sn_width);
mt_store_field(usage, td, hi);
td->last_field_index = field->index;
return 1;
case HID_DG_HEIGHT:
hid_map_usage(hi, usage, bit, max,
EV_ABS, ABS_MT_TOUCH_MINOR);
- set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
- cls->sn_height);
- input_set_abs_params(hi->input,
+ if (!(cls->quirks & MT_QUIRK_NO_AREA)) {
+ set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
+ cls->sn_height);
+ input_set_abs_params(hi->input,
ABS_MT_ORIENTATION, 0, 1, 0, 0);
+ }
mt_store_field(usage, td, hi);
td->last_field_index = field->index;
return 1;
@@ -860,6 +871,11 @@ static const struct hid_device_id mt_devices[] = {
MT_USB_DEVICE(USB_VENDOR_ID_ELO,
USB_DEVICE_ID_ELO_TS2515) },

+ /* Flatfrog Panels */
+ { .driver_data = MT_CLS_FLATFROG,
+ MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG,
+ USB_DEVICE_ID_MULTITOUCH_3200) },
+
/* GeneralTouch panel */
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
--
1.7.12


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