Commits d793ff8 and 4082da8 introduced two pad usages which do not
actually send pad input events. To make sure we do not post empty
pad packets, pad_input_event_flag is introduced. Turn on the flag
for real pad input events so we can synchronize them properly.
Signed-off-by: Ping Cheng <ping.cheng@xxxxxxxxx>
---
Jiri: this patch is based on your for-4.12/wacom branch
---
drivers/hid/wacom_wac.c | 6 +++++-
drivers/hid/wacom_wac.h | 1 +
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index f136038..ffef32a 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -1881,6 +1881,7 @@ static void wacom_wac_pad_event(struct hid_device *hdev, struct hid_field *field
/* fall through*/
default:
input_event(input, usage->type, usage->code, value);
+ if (value) features->pad_input_event_flag = true;
break;
}
}
@@ -1919,11 +1920,14 @@ static void wacom_wac_pad_report(struct hid_device *hdev,
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
struct input_dev *input = wacom_wac->pad_input;
bool active = wacom_wac->hid_data.inrange_state != 0;
+ struct wacom_features *features = &wacom_wac->features;
/* report prox for expresskey events */
- if (wacom_equivalent_usage(report->field[0]->physical) == HID_DG_TABLETFUNCTIONKEY) {
+ if ((wacom_equivalent_usage(report->field[0]->physical) == HID_DG_TABLETFUNCTIONKEY) &&
+ features->pad_input_event_flag) {
input_event(input, EV_ABS, ABS_MISC, active ? PAD_DEVICE_ID : 0);
input_sync(input);
+ if (!active) features->pad_input_event_flag = false;
}
}
diff --git a/drivers/hid/wacom_wac.h b/drivers/hid/wacom_wac.h
index 839bd4b..ff09609 100644
--- a/drivers/hid/wacom_wac.h
+++ b/drivers/hid/wacom_wac.h
@@ -263,6 +263,7 @@ struct wacom_features {
int pktlen;
bool check_for_hid_type;
int hid_type;
+ bool pad_input_event_flag;
};
struct wacom_shared {
--
2.7.4
--
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