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HID: multitouch: remove pen special handling 

Pens have a special handling in hid-mt as hybrid pen/touch devices
are quite common now. However, some fancy devices presents also
useful collections like mouse or keyboard.
The special case for the pen may not be a special case, and treat it as
a generic case.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Benjamin Tissoires 2014-02-28 11:41:24 -05:00 committed by Jiri Kosina
parent 0fa9c61618
commit e55f620086
1 changed files with 9 additions and 52 deletions
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61
drivers/hid/hid-multitouch.c
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@ -100,7 +100,6 @@ struct mt_device {
int cc_value_index; /* contact count value index in the field */
unsigned last_slot_field; /* the last field of a slot */
unsigned mt_report_id; /* the report ID of the multitouch device */
unsigned pen_report_id; /* the report ID of the pen device */
__s16 inputmode; /* InputMode HID feature, -1 if non-existent */
__s16 inputmode_index; /* InputMode HID feature index in the report */
__s16 maxcontact_report_id; /* Maximum Contact Number HID feature,
@ -342,45 +341,6 @@ static void mt_store_field(struct hid_usage *usage, struct mt_device *td,
f->usages[f->length++] = usage->hid;
}
static int mt_pen_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);
td->pen_report_id = field->report->id;
return 0;
}
static int mt_pen_input_mapped(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
return 0;
}
static int mt_pen_event(struct hid_device *hid, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
/* let hid-input handle it */
return 0;
}
static void mt_pen_report(struct hid_device *hid, struct hid_report *report)
{
struct hid_field *field = report->field[0];
input_sync(field->hidinput->input);
}
static void mt_pen_input_configured(struct hid_device *hdev,
struct hid_input *hi)
{
/* force BTN_STYLUS to allow tablet matching in udev */
__set_bit(BTN_STYLUS, hi->input->keybit);
}
static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
@ -767,7 +727,7 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
return -1;
if (field->physical == HID_DG_STYLUS)
return mt_pen_input_mapping(hdev, hi, field, usage, bit, max);
return 0;
return mt_touch_input_mapping(hdev, hi, field, usage, bit, max);
}
@ -777,7 +737,7 @@ static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
unsigned long **bit, int *max)
{
if (field->physical == HID_DG_STYLUS)
return mt_pen_input_mapped(hdev, hi, field, usage, bit, max);
return 0;
return mt_touch_input_mapped(hdev, hi, field, usage, bit, max);
}
@ -790,25 +750,22 @@ static int mt_event(struct hid_device *hid, struct hid_field *field,
if (field->report->id == td->mt_report_id)
return mt_touch_event(hid, field, usage, value);
if (field->report->id == td->pen_report_id)
return mt_pen_event(hid, field, usage, value);
/* ignore other reports */
return 1;
return 0;
}
static void mt_report(struct hid_device *hid, struct hid_report *report)
{
struct mt_device *td = hid_get_drvdata(hid);
struct hid_field *field = report->field[0];
if (!(hid->claimed & HID_CLAIMED_INPUT))
return;
if (report->id == td->mt_report_id)
mt_touch_report(hid, report);
return mt_touch_report(hid, report);
if (report->id == td->pen_report_id)
mt_pen_report(hid, report);
if (field && field->hidinput && field->hidinput->input)
input_sync(field->hidinput->input);
}
static void mt_set_input_mode(struct hid_device *hdev)
@ -895,7 +852,8 @@ static void mt_input_configured(struct hid_device *hdev, struct hid_input *hi)
if (hi->report->field[0]->physical == HID_DG_STYLUS) {
suffix = "Pen";
mt_pen_input_configured(hdev, hi);
/* force BTN_STYLUS to allow tablet matching in udev */
__set_bit(BTN_STYLUS, hi->input->keybit);
}
if (suffix) {
@ -957,7 +915,6 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
td->maxcontact_report_id = -1;
td->cc_index = -1;
td->mt_report_id = -1;
td->pen_report_id = -1;
hid_set_drvdata(hdev, td);
td->fields = devm_kzalloc(&hdev->dev, sizeof(struct mt_fields),