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-rw-r--r--drivers/hid/wacom_wac.c94
1 files changed, 68 insertions, 26 deletions
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index d532c1ebf2ee..7a0a7f67e7ed 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -2072,7 +2072,7 @@ static void wacom_wac_pad_pre_report(struct hid_device *hdev,
}
static void wacom_wac_pad_report(struct hid_device *hdev,
- struct hid_report *report)
+ struct hid_report *report, struct hid_field *field)
{
struct wacom *wacom = hid_get_drvdata(hdev);
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
@@ -2080,7 +2080,7 @@ static void wacom_wac_pad_report(struct hid_device *hdev,
bool active = wacom_wac->hid_data.inrange_state != 0;
/* report prox for expresskey events */
- if ((wacom_equivalent_usage(report->field[0]->physical) == HID_DG_TABLETFUNCTIONKEY) &&
+ if ((wacom_equivalent_usage(field->physical) == HID_DG_TABLETFUNCTIONKEY) &&
wacom_wac->hid_data.pad_input_event_flag) {
input_event(input, EV_ABS, ABS_MISC, active ? PAD_DEVICE_ID : 0);
input_sync(input);
@@ -2627,11 +2627,13 @@ void wacom_wac_event(struct hid_device *hdev, struct hid_field *field,
wacom_wac_finger_event(hdev, field, usage, value);
}
-static void wacom_report_events(struct hid_device *hdev, struct hid_report *report)
+static void wacom_report_events(struct hid_device *hdev,
+ struct hid_report *report, int collection_index,
+ int field_index)
{
int r;
- for (r = 0; r < report->maxfield; r++) {
+ for (r = field_index; r < report->maxfield; r++) {
struct hid_field *field;
unsigned count, n;
@@ -2641,30 +2643,23 @@ static void wacom_report_events(struct hid_device *hdev, struct hid_report *repo
if (!(HID_MAIN_ITEM_VARIABLE & field->flags))
continue;
- for (n = 0; n < count; n++)
- wacom_wac_event(hdev, field, &field->usage[n], field->value[n]);
+ for (n = 0 ; n < count; n++) {
+ if (field->usage[n].collection_index == collection_index)
+ wacom_wac_event(hdev, field, &field->usage[n],
+ field->value[n]);
+ else
+ return;
+ }
}
}
-void wacom_wac_report(struct hid_device *hdev, struct hid_report *report)
+int wacom_wac_collection(struct hid_device *hdev, struct hid_report *report,
+ int collection_index, struct hid_field *field,
+ int field_index)
{
struct wacom *wacom = hid_get_drvdata(hdev);
- struct wacom_wac *wacom_wac = &wacom->wacom_wac;
- struct hid_field *field = report->field[0];
-
- if (wacom_wac->features.type != HID_GENERIC)
- return;
-
- wacom_wac_battery_pre_report(hdev, report);
-
- if (WACOM_PAD_FIELD(field) && wacom->wacom_wac.pad_input)
- wacom_wac_pad_pre_report(hdev, report);
- else if (WACOM_PEN_FIELD(field) && wacom->wacom_wac.pen_input)
- wacom_wac_pen_pre_report(hdev, report);
- else if (WACOM_FINGER_FIELD(field) && wacom->wacom_wac.touch_input)
- wacom_wac_finger_pre_report(hdev, report);
- wacom_report_events(hdev, report);
+ wacom_report_events(hdev, report, collection_index, field_index);
/*
* Non-input reports may be sent prior to the device being
@@ -2674,16 +2669,63 @@ void wacom_wac_report(struct hid_device *hdev, struct hid_report *report)
* processing functions.
*/
if (report->type != HID_INPUT_REPORT)
- return;
-
- wacom_wac_battery_report(hdev, report);
+ return -1;
if (WACOM_PAD_FIELD(field) && wacom->wacom_wac.pad_input)
- wacom_wac_pad_report(hdev, report);
+ wacom_wac_pad_report(hdev, report, field);
else if (WACOM_PEN_FIELD(field) && wacom->wacom_wac.pen_input)
wacom_wac_pen_report(hdev, report);
else if (WACOM_FINGER_FIELD(field) && wacom->wacom_wac.touch_input)
wacom_wac_finger_report(hdev, report);
+
+ return 0;
+}
+
+void wacom_wac_report(struct hid_device *hdev, struct hid_report *report)
+{
+ struct wacom *wacom = hid_get_drvdata(hdev);
+ struct wacom_wac *wacom_wac = &wacom->wacom_wac;
+ struct hid_field *field;
+ bool pad_in_hid_field = false, pen_in_hid_field = false,
+ finger_in_hid_field = false;
+ int r;
+ int prev_collection = -1;
+
+ if (wacom_wac->features.type != HID_GENERIC)
+ return;
+
+ for (r = 0; r < report->maxfield; r++) {
+ field = report->field[r];
+
+ if (WACOM_PAD_FIELD(field))
+ pad_in_hid_field = true;
+ if (WACOM_PEN_FIELD(field))
+ pen_in_hid_field = true;
+ if (WACOM_FINGER_FIELD(field))
+ finger_in_hid_field = true;
+ }
+
+ wacom_wac_battery_pre_report(hdev, report);
+
+ if (pad_in_hid_field && wacom->wacom_wac.pad_input)
+ wacom_wac_pad_pre_report(hdev, report);
+ if (pen_in_hid_field && wacom->wacom_wac.pen_input)
+ wacom_wac_pen_pre_report(hdev, report);
+ if (finger_in_hid_field && wacom->wacom_wac.touch_input)
+ wacom_wac_finger_pre_report(hdev, report);
+
+ for (r = 0; r < report->maxfield; r++) {
+ field = report->field[r];
+
+ if (field->usage[0].collection_index != prev_collection) {
+ if (wacom_wac_collection(hdev, report,
+ field->usage[0].collection_index, field, r) < 0)
+ return;
+ prev_collection = field->usage[0].collection_index;
+ }
+ }
+
+ wacom_wac_battery_report(hdev, report);
}
static int wacom_bpt_touch(struct wacom_wac *wacom)