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authorAaron Armstrong Skomra <skomra@gmail.com>2017-01-25 23:08:39 +0300
committerJiri Kosina <jkosina@suse.cz>2017-01-26 23:46:44 +0300
commit60a221869803a0864c4b1683395ef574ee15aba6 (patch)
tree8b0d1b133774e2bccd1fc4e37f05b82e2cbaa096 /drivers/hid
parent65ef4c1e98b73176a64fb6e9829e4166249392ec (diff)
downloadlinux-60a221869803a0864c4b1683395ef574ee15aba6.tar.xz
HID: wacom: generic: add support for touchring
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@wacom.com> Reviewed-by: Ping Cheng <pingc@wacom.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid')
-rw-r--r--drivers/hid/wacom_wac.c19
1 files changed, 18 insertions, 1 deletions
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index f6825d25a257..636c4a1ee958 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)