RE: [PATCH 2/2] HID: hid-multitouch: Add Flatfrog support

[Pablo Cases]

Hi all,

A small note of appreciation: 
We at Flatfrog appreciate the work done by all the people involved in the Linux touch/input development. It is wonderful to see that even if we lack resources to commit a driver patch this can still be done by experts (and enthusiast) elsewhere.

Thank you so much,
Flatfrog's software team


>-----Original Message-----
>From: linux-input-owner@xxxxxxxxxxxxxxx [mailto:linux-input-
>owner@xxxxxxxxxxxxxxx] On Behalf Of Henrik Rydberg
>Sent: den 5 september 2012 18:12
>To: Jiri Kosina
>Cc: Dmitry Torokhov; linux-input@xxxxxxxxxxxxxxx; linux-
>kernel@xxxxxxxxxxxxxxx; Benjamin Tissoires
>Subject: Re: [PATCH 2/2] HID: hid-multitouch: Add Flatfrog support
>
>On Wed, Sep 05, 2012 at 05:27:37PM +0200, Henrik Rydberg wrote:
>> Add support for the Flatfrog Multitouch 3200 panel. This panel
>> advertises some fields that it does not use, hence the new quirks.
>>
>> Cc: Benjamin Tissoires <benjamin.tissoires@xxxxxxx>
>> Signed-off-by: Henrik Rydberg <rydberg@xxxxxxxxxxx>
>> ---
>
>I sent the wrong version, the one below is the correct one. Sorry about
>the fuzz.
>
>Henrik
>
>From 74a60bb74176c658938e07da301396b6f1d3fbee Mon Sep 17 00:00:00 2001
>From: Henrik Rydberg <rydberg@xxxxxxxxxxx>
>Date: Wed, 5 Sep 2012 18:06:58 +0200
>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 quirks.
>
>Signed-off-by: Henrik Rydberg <rydberg@xxxxxxxxxxx>
>---
> drivers/hid/hid-ids.h        |  3 +++
> drivers/hid/hid-multitouch.c | 33 ++++++++++++++++++++++++++-------
> 2 files changed, 29 insertions(+), 7 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..3cfd376 100644
>--- a/drivers/hid/hid-multitouch.c
>+++ b/drivers/hid/hid-multitouch.c
>@@ -51,6 +51,8 @@ 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)
>+#define MT_QUIRK_NO_PRESSURE		(1 << 10)
>
> struct mt_slot {
> 	__s32 x, y, p, w, h;
>@@ -115,6 +117,7 @@ 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 +202,13 @@ 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 |
>+			MT_QUIRK_NO_PRESSURE,
>+		.sn_move = 2048,
>+		.maxcontacts = 40,
>+	},
> 	{ }
> };
>
>@@ -366,26 +376,30 @@ 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;
> 		case HID_DG_TIPPRESSURE:
> 			hid_map_usage(hi, usage, bit, max,
> 					EV_ABS,
>ABS_MT_PRESSURE);
>-			set_abs(hi->input, ABS_MT_PRESSURE,
>field,
>-				cls->sn_pressure);
>+			if (!(cls->quirks &
>MT_QUIRK_NO_PRESSURE))
>+				set_abs(hi->input,
>ABS_MT_PRESSURE, field,
>+					cls-
>>sn_pressure);
> 			mt_store_field(usage, td, hi);
> 			td->last_field_index = field->index;
> 			return 1;
>@@ -860,6 +874,11 @@ 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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