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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.c222
1 files changed, 169 insertions, 53 deletions
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 24fc4423b937..1d5b94167b52 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -1,9 +1,9 @@
/*
* HID driver for multitouch panels
*
- * Copyright (c) 2010-2011 Stephane Chatty <chatty@enac.fr>
- * Copyright (c) 2010-2011 Benjamin Tissoires <benjamin.tissoires@gmail.com>
- * Copyright (c) 2010-2011 Ecole Nationale de l'Aviation Civile, France
+ * Copyright (c) 2010-2012 Stephane Chatty <chatty@enac.fr>
+ * Copyright (c) 2010-2012 Benjamin Tissoires <benjamin.tissoires@gmail.com>
+ * Copyright (c) 2010-2012 Ecole Nationale de l'Aviation Civile, France
*
* This code is partly based on hid-egalax.c:
*
@@ -67,6 +67,7 @@ struct mt_class {
__s32 sn_height; /* Signal/noise ratio for height events */
__s32 sn_pressure; /* Signal/noise ratio for pressure events */
__u8 maxcontacts;
+ bool is_indirect; /* true for touchpads */
};
struct mt_device {
@@ -74,11 +75,15 @@ struct mt_device {
struct mt_class mtclass; /* our mt device class */
unsigned last_field_index; /* last field index of the report */
unsigned last_slot_field; /* the last field of a slot */
- int last_mt_collection; /* last known mt-related collection */
__s8 inputmode; /* InputMode HID feature, -1 if non-existent */
+ __s8 maxcontact_report_id; /* Maximum Contact Number HID feature,
+ -1 if non-existent */
__u8 num_received; /* how many contacts we received */
__u8 num_expected; /* expected last contact index */
__u8 maxcontacts;
+ __u8 touches_by_report; /* how many touches are present in one report:
+ * 1 means we should use a serial protocol
+ * > 1 means hybrid (multitouch) protocol */
bool curvalid; /* is the current contact valid? */
struct mt_slot *slots;
};
@@ -100,6 +105,8 @@ struct mt_device {
#define MT_CLS_CYPRESS 0x0102
#define MT_CLS_EGALAX 0x0103
#define MT_CLS_EGALAX_SERIAL 0x0104
+#define MT_CLS_TOPSEED 0x0105
+#define MT_CLS_PANASONIC 0x0106
#define MT_DEFAULT_MAXCONTACT 10
@@ -189,6 +196,14 @@ static struct mt_class mt_classes[] = {
.sn_move = 4096,
.sn_pressure = 32,
},
+ { .name = MT_CLS_TOPSEED,
+ .quirks = MT_QUIRK_ALWAYS_VALID,
+ .is_indirect = true,
+ .maxcontacts = 2,
+ },
+ { .name = MT_CLS_PANASONIC,
+ .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP,
+ .maxcontacts = 4 },
{ }
};
@@ -241,6 +256,7 @@ static void mt_feature_mapping(struct hid_device *hdev,
td->inputmode = field->report->id;
break;
case HID_DG_CONTACTMAX:
+ td->maxcontact_report_id = field->report->id;
td->maxcontacts = field->value[0];
if (td->mtclass.maxcontacts)
/* check if the maxcontacts is given by the class */
@@ -259,23 +275,44 @@ static void set_abs(struct input_dev *input, unsigned int code,
input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
}
+static void set_last_slot_field(struct hid_usage *usage, struct mt_device *td,
+ struct hid_input *hi)
+{
+ if (!test_bit(usage->hid, hi->input->absbit))
+ td->last_slot_field = usage->hid;
+}
+
static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
struct mt_device *td = hid_get_drvdata(hdev);
struct mt_class *cls = &td->mtclass;
+ int code;
/* Only map fields from TouchScreen or TouchPad collections.
- * We need to ignore fields that belong to other collections
- * such as Mouse that might have the same GenericDesktop usages. */
+ * We need to ignore fields that belong to other collections
+ * such as Mouse that might have the same GenericDesktop usages. */
if (field->application == HID_DG_TOUCHSCREEN)
set_bit(INPUT_PROP_DIRECT, hi->input->propbit);
- else if (field->application == HID_DG_TOUCHPAD)
- set_bit(INPUT_PROP_POINTER, hi->input->propbit);
- else
+ else if (field->application != HID_DG_TOUCHPAD)
return 0;
+ /* In case of an indirect device (touchpad), we need to add
+ * specific BTN_TOOL_* to be handled by the synaptics xorg
+ * driver.
+ * We also consider that touchscreens providing buttons are touchpads.
+ */
+ if (field->application == HID_DG_TOUCHPAD ||
+ (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON ||
+ cls->is_indirect) {
+ set_bit(INPUT_PROP_POINTER, hi->input->propbit);
+ set_bit(BTN_TOOL_FINGER, hi->input->keybit);
+ set_bit(BTN_TOOL_DOUBLETAP, hi->input->keybit);
+ set_bit(BTN_TOOL_TRIPLETAP, hi->input->keybit);
+ set_bit(BTN_TOOL_QUADTAP, hi->input->keybit);
+ }
+
/* eGalax devices provide a Digitizer.Stylus input which overrides
* the correct Digitizers.Finger X/Y ranges.
* Let's just ignore this input. */
@@ -293,10 +330,8 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
cls->sn_move);
/* touchscreen emulation */
set_abs(hi->input, ABS_X, field, cls->sn_move);
- if (td->last_mt_collection == usage->collection_index) {
- td->last_slot_field = usage->hid;
- td->last_field_index = field->index;
- }
+ set_last_slot_field(usage, td, hi);
+ td->last_field_index = field->index;
return 1;
case HID_GD_Y:
hid_map_usage(hi, usage, bit, max,
@@ -305,10 +340,8 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
cls->sn_move);
/* touchscreen emulation */
set_abs(hi->input, ABS_Y, field, cls->sn_move);
- if (td->last_mt_collection == usage->collection_index) {
- td->last_slot_field = usage->hid;
- td->last_field_index = field->index;
- }
+ set_last_slot_field(usage, td, hi);
+ td->last_field_index = field->index;
return 1;
}
return 0;
@@ -316,24 +349,18 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
case HID_UP_DIGITIZER:
switch (usage->hid) {
case HID_DG_INRANGE:
- if (td->last_mt_collection == usage->collection_index) {
- td->last_slot_field = usage->hid;
- td->last_field_index = field->index;
- }
+ set_last_slot_field(usage, td, hi);
+ td->last_field_index = field->index;
return 1;
case HID_DG_CONFIDENCE:
- if (td->last_mt_collection == usage->collection_index) {
- td->last_slot_field = usage->hid;
- td->last_field_index = field->index;
- }
+ set_last_slot_field(usage, td, hi);
+ td->last_field_index = field->index;
return 1;
case HID_DG_TIPSWITCH:
hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
input_set_capability(hi->input, EV_KEY, BTN_TOUCH);
- if (td->last_mt_collection == usage->collection_index) {
- td->last_slot_field = usage->hid;
- td->last_field_index = field->index;
- }
+ set_last_slot_field(usage, td, hi);
+ td->last_field_index = field->index;
return 1;
case HID_DG_CONTACTID:
if (!td->maxcontacts)
@@ -341,17 +368,15 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
input_mt_init_slots(hi->input, td->maxcontacts);
td->last_slot_field = usage->hid;
td->last_field_index = field->index;
- td->last_mt_collection = usage->collection_index;
+ td->touches_by_report++;
return 1;
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 (td->last_mt_collection == usage->collection_index) {
- td->last_slot_field = usage->hid;
- td->last_field_index = field->index;
- }
+ set_last_slot_field(usage, td, hi);
+ td->last_field_index = field->index;
return 1;
case HID_DG_HEIGHT:
hid_map_usage(hi, usage, bit, max,
@@ -360,10 +385,8 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
cls->sn_height);
input_set_abs_params(hi->input,
ABS_MT_ORIENTATION, 0, 1, 0, 0);
- if (td->last_mt_collection == usage->collection_index) {
- td->last_slot_field = usage->hid;
- td->last_field_index = field->index;
- }
+ set_last_slot_field(usage, td, hi);
+ td->last_field_index = field->index;
return 1;
case HID_DG_TIPPRESSURE:
hid_map_usage(hi, usage, bit, max,
@@ -373,25 +396,31 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
/* touchscreen emulation */
set_abs(hi->input, ABS_PRESSURE, field,
cls->sn_pressure);
- if (td->last_mt_collection == usage->collection_index) {
- td->last_slot_field = usage->hid;
- td->last_field_index = field->index;
- }
+ set_last_slot_field(usage, td, hi);
+ td->last_field_index = field->index;
return 1;
case HID_DG_CONTACTCOUNT:
- if (td->last_mt_collection == usage->collection_index)
- td->last_field_index = field->index;
+ td->last_field_index = field->index;
return 1;
case HID_DG_CONTACTMAX:
/* we don't set td->last_slot_field as contactcount and
* contact max are global to the report */
- if (td->last_mt_collection == usage->collection_index)
- td->last_field_index = field->index;
+ td->last_field_index = field->index;
return -1;
}
+ case HID_DG_TOUCH:
+ /* Legacy devices use TIPSWITCH and not TOUCH.
+ * Let's just ignore this field. */
+ return -1;
/* let hid-input decide for the others */
return 0;
+ case HID_UP_BUTTON:
+ code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE);
+ hid_map_usage(hi, usage, bit, max, EV_KEY, code);
+ input_set_capability(hi->input, EV_KEY, code);
+ return 1;
+
case 0xff000000:
/* we do not want to map these: no input-oriented meaning */
return -1;
@@ -538,15 +567,17 @@ static int mt_event(struct hid_device *hid, struct hid_field *field,
if (value)
td->num_expected = value;
break;
+ case HID_DG_TOUCH:
+ /* do nothing */
+ break;
default:
/* fallback to the generic hidinput handling */
return 0;
}
- if (usage->hid == td->last_slot_field) {
+ if (usage->hid == td->last_slot_field)
mt_complete_slot(td);
- }
if (field->index == td->last_field_index
&& td->num_received >= td->num_expected)
@@ -578,16 +609,44 @@ static void mt_set_input_mode(struct hid_device *hdev)
}
}
+static void mt_set_maxcontacts(struct hid_device *hdev)
+{
+ struct mt_device *td = hid_get_drvdata(hdev);
+ struct hid_report *r;
+ struct hid_report_enum *re;
+ int fieldmax, max;
+
+ if (td->maxcontact_report_id < 0)
+ return;
+
+ if (!td->mtclass.maxcontacts)
+ return;
+
+ re = &hdev->report_enum[HID_FEATURE_REPORT];
+ r = re->report_id_hash[td->maxcontact_report_id];
+ if (r) {
+ max = td->mtclass.maxcontacts;
+ fieldmax = r->field[0]->logical_maximum;
+ max = min(fieldmax, max);
+ if (r->field[0]->value[0] != max) {
+ r->field[0]->value[0] = max;
+ usbhid_submit_report(hdev, r, USB_DIR_OUT);
+ }
+ }
+}
+
static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret, i;
struct mt_device *td;
struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */
- for (i = 0; mt_classes[i].name ; i++) {
- if (id->driver_data == mt_classes[i].name) {
- mtclass = &(mt_classes[i]);
- break;
+ if (id) {
+ for (i = 0; mt_classes[i].name ; i++) {
+ if (id->driver_data == mt_classes[i].name) {
+ mtclass = &(mt_classes[i]);
+ break;
+ }
}
}
@@ -595,6 +654,7 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
* that emit events over several HID messages.
*/
hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
+ hdev->quirks &= ~HID_QUIRK_MULTITOUCH;
td = kzalloc(sizeof(struct mt_device), GFP_KERNEL);
if (!td) {
@@ -603,7 +663,7 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
}
td->mtclass = *mtclass;
td->inputmode = -1;
- td->last_mt_collection = -1;
+ td->maxcontact_report_id = -1;
hid_set_drvdata(hdev, td);
ret = hid_parse(hdev);
@@ -614,6 +674,15 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
if (ret)
goto fail;
+ if (!id && td->touches_by_report == 1) {
+ /* the device has been sent by hid-generic */
+ mtclass = &td->mtclass;
+ mtclass->quirks |= MT_QUIRK_ALWAYS_VALID;
+ mtclass->quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP;
+ mtclass->quirks &= ~MT_QUIRK_VALID_IS_INRANGE;
+ mtclass->quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE;
+ }
+
td->slots = kzalloc(td->maxcontacts * sizeof(struct mt_slot),
GFP_KERNEL);
if (!td->slots) {
@@ -625,6 +694,7 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group);
+ mt_set_maxcontacts(hdev);
mt_set_input_mode(hdev);
return 0;
@@ -637,6 +707,7 @@ fail:
#ifdef CONFIG_PM
static int mt_reset_resume(struct hid_device *hdev)
{
+ mt_set_maxcontacts(hdev);
mt_set_input_mode(hdev);
return 0;
}
@@ -674,6 +745,9 @@ static const struct hid_device_id mt_devices[] = {
{ .driver_data = MT_CLS_SERIAL,
HID_USB_DEVICE(USB_VENDOR_ID_ATMEL,
USB_DEVICE_ID_ATMEL_MULTITOUCH) },
+ { .driver_data = MT_CLS_SERIAL,
+ HID_USB_DEVICE(USB_VENDOR_ID_ATMEL,
+ USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) },
/* Cando panels */
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
@@ -716,12 +790,30 @@ static const struct hid_device_id mt_devices[] = {
{ .driver_data = MT_CLS_EGALAX,
HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) },
+ { .driver_data = MT_CLS_EGALAX_SERIAL,
+ HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+ USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) },
+ { .driver_data = MT_CLS_EGALAX_SERIAL,
+ HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+ USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) },
+ { .driver_data = MT_CLS_EGALAX_SERIAL,
+ HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+ USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
+ { .driver_data = MT_CLS_EGALAX_SERIAL,
+ HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+ USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) },
{ .driver_data = MT_CLS_EGALAX,
HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) },
+ { .driver_data = MT_CLS_EGALAX_SERIAL,
+ HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+ USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) },
{ .driver_data = MT_CLS_EGALAX,
HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) },
+ { .driver_data = MT_CLS_EGALAX_SERIAL,
+ HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+ USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) },
{ .driver_data = MT_CLS_EGALAX,
HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) },
@@ -730,6 +822,9 @@ static const struct hid_device_id mt_devices[] = {
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) },
{ .driver_data = MT_CLS_EGALAX_SERIAL,
HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+ USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) },
+ { .driver_data = MT_CLS_EGALAX_SERIAL,
+ HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
/* Elo TouchSystems IntelliTouch Plus panel */
@@ -742,6 +837,11 @@ static const struct hid_device_id mt_devices[] = {
HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
+ /* Gametel game controller */
+ { .driver_data = MT_CLS_DEFAULT,
+ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_FRUCTEL,
+ USB_DEVICE_ID_GAMETEL_MT_MODE) },
+
/* GoodTouch panels */
{ .driver_data = MT_CLS_DEFAULT,
HID_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
@@ -756,6 +856,9 @@ static const struct hid_device_id mt_devices[] = {
{ .driver_data = MT_CLS_SERIAL,
HID_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
USB_DEVICE_ID_IDEACOM_IDC6650) },
+ { .driver_data = MT_CLS_SERIAL,
+ HID_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
+ USB_DEVICE_ID_IDEACOM_IDC6651) },
/* Ilitek dual touch panel */
{ .driver_data = MT_CLS_DEFAULT,
@@ -791,6 +894,14 @@ static const struct hid_device_id mt_devices[] = {
HID_USB_DEVICE(USB_VENDOR_ID_TURBOX,
USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
+ /* Panasonic panels */
+ { .driver_data = MT_CLS_PANASONIC,
+ HID_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
+ USB_DEVICE_ID_PANABOARD_UBT780) },
+ { .driver_data = MT_CLS_PANASONIC,
+ HID_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
+ USB_DEVICE_ID_PANABOARD_UBT880) },
+
/* PenMount panels */
{ .driver_data = MT_CLS_CONFIDENCE,
HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT,
@@ -837,6 +948,11 @@ static const struct hid_device_id mt_devices[] = {
HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX,
USB_DEVICE_ID_MTP_SITRONIX)},
+ /* TopSeed panels */
+ { .driver_data = MT_CLS_TOPSEED,
+ HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2,
+ USB_DEVICE_ID_TOPSEED2_PERIPAD_701) },
+
/* Touch International panels */
{ .driver_data = MT_CLS_DEFAULT,
HID_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.