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Diffstat (limited to 'drivers/hid/hid-multitouch.c')
-rw-r--r--drivers/hid/hid-multitouch.c264
1 files changed, 217 insertions, 47 deletions
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index ee01e65e22d6..ecd4d2db9e80 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -11,6 +11,12 @@
* Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se>
* Copyright (c) 2010 Canonical, Ltd.
*
+ * This code is partly based on hid-3m-pct.c:
+ *
+ * Copyright (c) 2009-2010 Stephane Chatty <chatty@enac.fr>
+ * Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se>
+ * Copyright (c) 2010 Canonical, Ltd.
+ *
*/
/*
@@ -44,6 +50,7 @@ MODULE_LICENSE("GPL");
#define MT_QUIRK_VALID_IS_INRANGE (1 << 4)
#define MT_QUIRK_VALID_IS_CONFIDENCE (1 << 5)
#define MT_QUIRK_EGALAX_XYZ_FIXUP (1 << 6)
+#define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE (1 << 7)
struct mt_slot {
__s32 x, y, p, w, h;
@@ -60,24 +67,36 @@ struct mt_device {
__s8 inputmode; /* InputMode HID feature, -1 if non-existent */
__u8 num_received; /* how many contacts we received */
__u8 num_expected; /* expected last contact index */
+ __u8 maxcontacts;
bool curvalid; /* is the current contact valid? */
- struct mt_slot slots[0]; /* first slot */
+ struct mt_slot *slots;
};
struct mt_class {
__s32 name; /* MT_CLS */
__s32 quirks;
__s32 sn_move; /* Signal/noise ratio for move events */
+ __s32 sn_width; /* Signal/noise ratio for width events */
+ __s32 sn_height; /* Signal/noise ratio for height events */
__s32 sn_pressure; /* Signal/noise ratio for pressure events */
__u8 maxcontacts;
};
/* classes of device behavior */
-#define MT_CLS_DEFAULT 1
-#define MT_CLS_DUAL_INRANGE_CONTACTID 2
-#define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 3
-#define MT_CLS_CYPRESS 4
-#define MT_CLS_EGALAX 5
+#define MT_CLS_DEFAULT 0x0001
+
+#define MT_CLS_CONFIDENCE 0x0002
+#define MT_CLS_CONFIDENCE_MINUS_ONE 0x0003
+#define MT_CLS_DUAL_INRANGE_CONTACTID 0x0004
+#define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0005
+#define MT_CLS_DUAL_NSMU_CONTACTID 0x0006
+
+/* vendor specific classes */
+#define MT_CLS_3M 0x0101
+#define MT_CLS_CYPRESS 0x0102
+#define MT_CLS_EGALAX 0x0103
+
+#define MT_DEFAULT_MAXCONTACT 10
/*
* these device-dependent functions determine what slot corresponds
@@ -95,12 +114,12 @@ static int cypress_compute_slot(struct mt_device *td)
static int find_slot_from_contactid(struct mt_device *td)
{
int i;
- for (i = 0; i < td->mtclass->maxcontacts; ++i) {
+ for (i = 0; i < td->maxcontacts; ++i) {
if (td->slots[i].contactid == td->curdata.contactid &&
td->slots[i].touch_state)
return i;
}
- for (i = 0; i < td->mtclass->maxcontacts; ++i) {
+ for (i = 0; i < td->maxcontacts; ++i) {
if (!td->slots[i].seen_in_this_frame &&
!td->slots[i].touch_state)
return i;
@@ -113,8 +132,12 @@ static int find_slot_from_contactid(struct mt_device *td)
struct mt_class mt_classes[] = {
{ .name = MT_CLS_DEFAULT,
- .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP,
- .maxcontacts = 10 },
+ .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP },
+ { .name = MT_CLS_CONFIDENCE,
+ .quirks = MT_QUIRK_VALID_IS_CONFIDENCE },
+ { .name = MT_CLS_CONFIDENCE_MINUS_ONE,
+ .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
+ MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE },
{ .name = MT_CLS_DUAL_INRANGE_CONTACTID,
.quirks = MT_QUIRK_VALID_IS_INRANGE |
MT_QUIRK_SLOT_IS_CONTACTID,
@@ -123,11 +146,24 @@ struct mt_class mt_classes[] = {
.quirks = MT_QUIRK_VALID_IS_INRANGE |
MT_QUIRK_SLOT_IS_CONTACTNUMBER,
.maxcontacts = 2 },
+ { .name = MT_CLS_DUAL_NSMU_CONTACTID,
+ .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
+ MT_QUIRK_SLOT_IS_CONTACTID,
+ .maxcontacts = 2 },
+
+ /*
+ * vendor specific classes
+ */
+ { .name = MT_CLS_3M,
+ .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
+ MT_QUIRK_SLOT_IS_CONTACTID,
+ .sn_move = 2048,
+ .sn_width = 128,
+ .sn_height = 128 },
{ .name = MT_CLS_CYPRESS,
.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
MT_QUIRK_CYPRESS,
.maxcontacts = 10 },
-
{ .name = MT_CLS_EGALAX,
.quirks = MT_QUIRK_SLOT_IS_CONTACTID |
MT_QUIRK_VALID_IS_INRANGE |
@@ -136,15 +172,26 @@ struct mt_class mt_classes[] = {
.sn_move = 4096,
.sn_pressure = 32,
},
+
{ }
};
static void mt_feature_mapping(struct hid_device *hdev,
struct hid_field *field, struct hid_usage *usage)
{
- if (usage->hid == HID_DG_INPUTMODE) {
- struct mt_device *td = hid_get_drvdata(hdev);
+ struct mt_device *td = hid_get_drvdata(hdev);
+
+ switch (usage->hid) {
+ case HID_DG_INPUTMODE:
td->inputmode = field->report->id;
+ break;
+ case HID_DG_CONTACTMAX:
+ td->maxcontacts = field->value[0];
+ if (td->mtclass->maxcontacts)
+ /* check if the maxcontacts is given by the class */
+ td->maxcontacts = td->mtclass->maxcontacts;
+
+ break;
}
}
@@ -179,6 +226,7 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
/* touchscreen emulation */
set_abs(hi->input, ABS_X, field, cls->sn_move);
td->last_slot_field = usage->hid;
+ td->last_field_index = field->index;
return 1;
case HID_GD_Y:
if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP)
@@ -190,6 +238,7 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
/* touchscreen emulation */
set_abs(hi->input, ABS_Y, field, cls->sn_move);
td->last_slot_field = usage->hid;
+ td->last_field_index = field->index;
return 1;
}
return 0;
@@ -198,32 +247,40 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
switch (usage->hid) {
case HID_DG_INRANGE:
td->last_slot_field = usage->hid;
+ td->last_field_index = field->index;
return 1;
case HID_DG_CONFIDENCE:
td->last_slot_field = usage->hid;
+ 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);
td->last_slot_field = usage->hid;
+ td->last_field_index = field->index;
return 1;
case HID_DG_CONTACTID:
- input_mt_init_slots(hi->input,
- td->mtclass->maxcontacts);
+ input_mt_init_slots(hi->input, td->maxcontacts);
td->last_slot_field = usage->hid;
+ td->last_field_index = field->index;
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);
td->last_slot_field = usage->hid;
+ 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);
- field->logical_maximum = 1;
- field->logical_minimum = 0;
- set_abs(hi->input, ABS_MT_ORIENTATION, field, 0);
+ 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);
td->last_slot_field = usage->hid;
+ td->last_field_index = field->index;
return 1;
case HID_DG_TIPPRESSURE:
if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP)
@@ -236,13 +293,15 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
set_abs(hi->input, ABS_PRESSURE, field,
cls->sn_pressure);
td->last_slot_field = usage->hid;
+ td->last_field_index = field->index;
return 1;
case HID_DG_CONTACTCOUNT:
- td->last_field_index = field->report->maxfield - 1;
+ 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 */
+ td->last_field_index = field->index;
return -1;
}
/* let hid-input decide for the others */
@@ -279,6 +338,9 @@ static int mt_compute_slot(struct mt_device *td)
if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER)
return td->num_received;
+ if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE)
+ return td->curdata.contactid - 1;
+
return find_slot_from_contactid(td);
}
@@ -292,7 +354,7 @@ static void mt_complete_slot(struct mt_device *td)
if (td->curvalid) {
int slotnum = mt_compute_slot(td);
- if (slotnum >= 0 && slotnum < td->mtclass->maxcontacts)
+ if (slotnum >= 0 && slotnum < td->maxcontacts)
td->slots[slotnum] = td->curdata;
}
td->num_received++;
@@ -307,7 +369,7 @@ static void mt_emit_event(struct mt_device *td, struct input_dev *input)
{
int i;
- for (i = 0; i < td->mtclass->maxcontacts; ++i) {
+ for (i = 0; i < td->maxcontacts; ++i) {
struct mt_slot *s = &(td->slots[i]);
if ((td->mtclass->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) &&
!s->seen_in_this_frame) {
@@ -318,11 +380,18 @@ static void mt_emit_event(struct mt_device *td, struct input_dev *input)
input_mt_report_slot_state(input, MT_TOOL_FINGER,
s->touch_state);
if (s->touch_state) {
+ /* this finger is on the screen */
+ int wide = (s->w > s->h);
+ /* divided by two to match visual scale of touch */
+ int major = max(s->w, s->h) >> 1;
+ int minor = min(s->w, s->h) >> 1;
+
input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x);
input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y);
+ input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p);
- input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, s->w);
- input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, s->h);
+ input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
+ input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
}
s->seen_in_this_frame = false;
@@ -341,7 +410,7 @@ static int mt_event(struct hid_device *hid, struct hid_field *field,
struct mt_device *td = hid_get_drvdata(hid);
__s32 quirks = td->mtclass->quirks;
- if (hid->claimed & HID_CLAIMED_INPUT) {
+ if (hid->claimed & HID_CLAIMED_INPUT && td->slots) {
switch (usage->hid) {
case HID_DG_INRANGE:
if (quirks & MT_QUIRK_VALID_IS_INRANGE)
@@ -390,8 +459,6 @@ static int mt_event(struct hid_device *hid, struct hid_field *field,
if (usage->hid == td->last_slot_field) {
mt_complete_slot(td);
- if (!td->last_field_index)
- mt_emit_event(td, field->hidinput->input);
}
if (field->index == td->last_field_index
@@ -442,9 +509,7 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
*/
hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
- td = kzalloc(sizeof(struct mt_device) +
- mtclass->maxcontacts * sizeof(struct mt_slot),
- GFP_KERNEL);
+ td = kzalloc(sizeof(struct mt_device), GFP_KERNEL);
if (!td) {
dev_err(&hdev->dev, "cannot allocate multitouch data\n");
return -ENOMEM;
@@ -461,6 +526,18 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
if (ret)
goto fail;
+ if (!td->maxcontacts)
+ td->maxcontacts = MT_DEFAULT_MAXCONTACT;
+
+ td->slots = kzalloc(td->maxcontacts * sizeof(struct mt_slot),
+ GFP_KERNEL);
+ if (!td->slots) {
+ dev_err(&hdev->dev, "cannot allocate multitouch slots\n");
+ hid_hw_stop(hdev);
+ ret = -ENOMEM;
+ goto fail;
+ }
+
mt_set_input_mode(hdev);
return 0;
@@ -482,27 +559,115 @@ static void mt_remove(struct hid_device *hdev)
{
struct mt_device *td = hid_get_drvdata(hdev);
hid_hw_stop(hdev);
+ kfree(td->slots);
kfree(td);
hid_set_drvdata(hdev, NULL);
}
static const struct hid_device_id mt_devices[] = {
+ /* 3M panels */
+ { .driver_data = MT_CLS_3M,
+ HID_USB_DEVICE(USB_VENDOR_ID_3M,
+ USB_DEVICE_ID_3M1968) },
+ { .driver_data = MT_CLS_3M,
+ HID_USB_DEVICE(USB_VENDOR_ID_3M,
+ USB_DEVICE_ID_3M2256) },
+
+ /* ActionStar panels */
+ { .driver_data = MT_CLS_DEFAULT,
+ HID_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR,
+ USB_DEVICE_ID_ACTIONSTAR_1011) },
+
+ /* Cando panels */
+ { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
+ HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
+ USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
+ { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
+ HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
+ USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) },
+ { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
+ HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
+ USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
+ { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
+ HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
+ USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
+
+ /* CVTouch panels */
+ { .driver_data = MT_CLS_DEFAULT,
+ HID_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
+ USB_DEVICE_ID_CVTOUCH_SCREEN) },
+
/* Cypress panel */
{ .driver_data = MT_CLS_CYPRESS,
HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS,
USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
+ /* eGalax devices (resistive) */
+ { .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) },
+
+ /* eGalax devices (capacitive) */
+ { .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) },
+
+ /* Elo TouchSystems IntelliTouch Plus panel */
+ { .driver_data = MT_CLS_DUAL_NSMU_CONTACTID,
+ HID_USB_DEVICE(USB_VENDOR_ID_ELO,
+ USB_DEVICE_ID_ELO_TS2515) },
+
/* GeneralTouch panel */
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
+ /* GoodTouch panels */
+ { .driver_data = MT_CLS_DEFAULT,
+ HID_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
+ USB_DEVICE_ID_GOODTOUCH_000f) },
+
+ /* Ilitek dual touch panel */
+ { .driver_data = MT_CLS_DEFAULT,
+ HID_USB_DEVICE(USB_VENDOR_ID_ILITEK,
+ USB_DEVICE_ID_ILITEK_MULTITOUCH) },
+
/* IRTOUCH panels */
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
HID_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS,
USB_DEVICE_ID_IRTOUCH_INFRARED_USB) },
+ /* Lumio panels */
+ { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
+ HID_USB_DEVICE(USB_VENDOR_ID_LUMIO,
+ USB_DEVICE_ID_CRYSTALTOUCH) },
+
+ /* MosArt panels */
+ { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
+ HID_USB_DEVICE(USB_VENDOR_ID_ASUS,
+ USB_DEVICE_ID_ASUS_T91MT)},
+ { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
+ HID_USB_DEVICE(USB_VENDOR_ID_ASUS,
+ USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
+ { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
+ HID_USB_DEVICE(USB_VENDOR_ID_TURBOX,
+ USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
+
+ /* PenMount panels */
+ { .driver_data = MT_CLS_CONFIDENCE,
+ HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT,
+ USB_DEVICE_ID_PENMOUNT_PCI) },
+
/* PixCir-based panels */
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
HID_USB_DEVICE(USB_VENDOR_ID_HANVON,
@@ -511,24 +676,29 @@ static const struct hid_device_id mt_devices[] = {
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) },
+ /* Stantum panels */
+ { .driver_data = MT_CLS_CONFIDENCE,
+ HID_USB_DEVICE(USB_VENDOR_ID_STANTUM,
+ USB_DEVICE_ID_MTP)},
+ { .driver_data = MT_CLS_CONFIDENCE,
+ HID_USB_DEVICE(USB_VENDOR_ID_STANTUM,
+ USB_DEVICE_ID_MTP_STM)},
+ { .driver_data = MT_CLS_CONFIDENCE,
+ HID_USB_DEVICE(USB_VENDOR_ID_STANTUM,
+ USB_DEVICE_ID_MTP_SITRONIX)},
+
+ /* Touch International panels */
+ { .driver_data = MT_CLS_DEFAULT,
+ HID_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
+ USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },
+
+ /* Unitec panels */
+ { .driver_data = MT_CLS_DEFAULT,
+ HID_USB_DEVICE(USB_VENDOR_ID_UNITEC,
+ USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
+ { .driver_data = MT_CLS_DEFAULT,
+ HID_USB_DEVICE(USB_VENDOR_ID_UNITEC,
+ USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
{ }
};
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-28 22:16:16 +0000