Add support for the touchring to the generic code path in
support of the second generation Intuos Pro.
We also add checks for usage->type to ensure that we
handle the usage before we report it, or change the
inrange_state based on it.
Signed-off-by: Aaron Skomra <aaron.skomra@xxxxxxxxx>
---
drivers/hid/wacom_wac.c | 19 ++++++++++++++++++-
1 file changed, 18 insertions(+), 1 deletion(-)
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index f6825d2..636c4a1 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -1733,6 +1733,10 @@ static void wacom_wac_pad_usage_mapping(struct hid_device *hdev,
wacom_map_usage(input, usage, field, EV_ABS, ABS_WHEEL, 0);
features->device_type |= WACOM_DEVICETYPE_PAD;
break;
+ case WACOM_HID_WD_TOUCHRINGSTATUS:
+ wacom_map_usage(input, usage, field, EV_ABS, ABS_WHEEL, 0);
+ features->device_type |= WACOM_DEVICETYPE_PAD;
+ break;
}
switch (equivalent_usage & 0xfffffff0) {
@@ -1775,12 +1779,22 @@ static void wacom_wac_pad_event(struct hid_device *hdev, struct hid_field *field
struct input_dev *input = wacom_wac->pad_input;
unsigned equivalent_usage = wacom_equivalent_usage(usage->hid);
+ /*
+ * Avoid reporting this event and setting inrange_state if this usage
+ * hasn't been mapped.
+ */
+ if (!usage->type)
+ return;
+
if (wacom_equivalent_usage(field->physical) == HID_DG_TABLETFUNCTIONKEY) {
- wacom_wac->hid_data.inrange_state |= value;
+ if (usage->hid != WACOM_HID_WD_TOUCHRING)
+ wacom_wac->hid_data.inrange_state |= value;
}
switch (equivalent_usage) {
case WACOM_HID_WD_TOUCHRINGSTATUS:
+ if (!value)
+ input_event(input, usage->type, usage->code, 0);
break;
default:
@@ -2288,6 +2302,9 @@ void wacom_wac_event(struct hid_device *hdev, struct hid_field *field,
if (wacom->wacom_wac.features.type != HID_GENERIC)
return;
+ if (value > field->logical_maximum || value < field->logical_minimum)
+ return;
+
if (WACOM_PAD_FIELD(field)) {
wacom_wac_pad_battery_event(hdev, field, usage, value);
if (wacom->wacom_wac.pad_input)
--
2.7.4
--
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