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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid

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Pull HID fix from Jiri Kosina:
 "Regression fix for multitouch palm rejection from Allen Hung"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: multitouch: enable palm rejection for Windows Precision Touchpad
  Revert "HID: multitouch: enable palm rejection if device implements confidence usage"
This commit is contained in:
Linus Torvalds 2016-06-28 12:01:14 -07:00
commit 595d9e34ee
1 changed files with 14 additions and 7 deletions
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21
drivers/hid/hid-multitouch.c
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@ -61,6 +61,7 @@ MODULE_LICENSE("GPL");
#define MT_QUIRK_ALWAYS_VALID (1 << 4)
#define MT_QUIRK_VALID_IS_INRANGE (1 << 5)
#define MT_QUIRK_VALID_IS_CONFIDENCE (1 << 6)
#define MT_QUIRK_CONFIDENCE (1 << 7)
#define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE (1 << 8)
#define MT_QUIRK_NO_AREA (1 << 9)
#define MT_QUIRK_IGNORE_DUPLICATES (1 << 10)
@ -78,6 +79,7 @@ struct mt_slot {
__s32 contactid; /* the device ContactID assigned to this slot */
bool touch_state; /* is the touch valid? */
bool inrange_state; /* is the finger in proximity of the sensor? */
bool confidence_state; /* is the touch made by a finger? */
};
struct mt_class {
@ -503,10 +505,8 @@ static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
return 1;
case HID_DG_CONFIDENCE:
if (cls->name == MT_CLS_WIN_8 &&
field->application == HID_DG_TOUCHPAD) {
cls->quirks &= ~MT_QUIRK_ALWAYS_VALID;
cls->quirks |= MT_QUIRK_VALID_IS_CONFIDENCE;
}
field->application == HID_DG_TOUCHPAD)
cls->quirks |= MT_QUIRK_CONFIDENCE;
mt_store_field(usage, td, hi);
return 1;
case HID_DG_TIPSWITCH:
@ -619,6 +619,7 @@ static void mt_complete_slot(struct mt_device *td, struct input_dev *input)
return;
if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) {
int active;
int slotnum = mt_compute_slot(td, input);
struct mt_slot *s = &td->curdata;
struct input_mt *mt = input->mt;
@ -633,10 +634,14 @@ static void mt_complete_slot(struct mt_device *td, struct input_dev *input)
return;
}
if (!(td->mtclass.quirks & MT_QUIRK_CONFIDENCE))
s->confidence_state = 1;
active = (s->touch_state || s->inrange_state) &&
s->confidence_state;
input_mt_slot(input, slotnum);
input_mt_report_slot_state(input, MT_TOOL_FINGER,
s->touch_state || s->inrange_state);
if (s->touch_state || s->inrange_state) {
input_mt_report_slot_state(input, MT_TOOL_FINGER, active);
if (active) {
/* this finger is in proximity of the sensor */
int wide = (s->w > s->h);
/* divided by two to match visual scale of touch */
@ -701,6 +706,8 @@ static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field,
td->curdata.touch_state = value;
break;
case HID_DG_CONFIDENCE:
if (quirks & MT_QUIRK_CONFIDENCE)
td->curdata.confidence_state = value;
if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE)
td->curvalid = value;
break;