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yaml
---
r: 291640
b: refs/heads/master
c: ed9d5c9
h: refs/heads/master
v: v3
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Benjamin Tissoires authored and Jiri Kosina committed Mar 12, 2012
1 parent 566e648 commit dc8c3b2
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Showing 2 changed files with 26 additions and 40 deletions.
2 changes: 1 addition & 1 deletion [refs]
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Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 2ce09df47b67f16367272f63f85f4cc991e6009a
refs/heads/master: ed9d5c96147b3bed6178252e8e04b27b7d32edd0
64 changes: 25 additions & 39 deletions trunk/drivers/hid/hid-multitouch.c
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Original file line number Diff line number Diff line change
Expand Up @@ -75,7 +75,6 @@ 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 */
Expand Down Expand Up @@ -273,6 +272,13 @@ 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)
Expand Down Expand Up @@ -321,10 +327,8 @@ 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,
Expand All @@ -333,53 +337,42 @@ 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;

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)
td->maxcontacts = MT_DEFAULT_MAXCONTACT;
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;
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,
Expand All @@ -388,10 +381,8 @@ 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,
Expand All @@ -401,20 +392,16 @@ 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:
Expand Down Expand Up @@ -670,7 +657,6 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
td->mtclass = *mtclass;
td->inputmode = -1;
td->maxcontact_report_id = -1;
td->last_mt_collection = -1;
hid_set_drvdata(hdev, td);

ret = hid_parse(hdev);
Expand Down

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