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path: root/drivers/hid/hid-multitouch.c
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Diffstat (limited to 'drivers/hid/hid-multitouch.c')
-rw-r--r--drivers/hid/hid-multitouch.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 51e25b9407f..f65e78b4699 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -67,6 +67,7 @@ MODULE_LICENSE("GPL");
#define MT_QUIRK_IGNORE_DUPLICATES (1 << 10)
#define MT_QUIRK_HOVERING (1 << 11)
#define MT_QUIRK_CONTACT_CNT_ACCURATE (1 << 12)
+#define MT_QUIRK_FORCE_GET_FEATURE (1 << 13)
#define MT_INPUTMODE_TOUCHSCREEN 0x02
#define MT_INPUTMODE_TOUCHPAD 0x03
@@ -150,6 +151,7 @@ static void mt_post_parse(struct mt_device *td);
#define MT_CLS_FLATFROG 0x0107
#define MT_CLS_GENERALTOUCH_TWOFINGERS 0x0108
#define MT_CLS_GENERALTOUCH_PWT_TENFINGERS 0x0109
+#define MT_CLS_VTL 0x0110
#define MT_DEFAULT_MAXCONTACT 10
#define MT_MAX_MAXCONTACT 250
@@ -255,6 +257,11 @@ static struct mt_class mt_classes[] = {
.sn_move = 2048,
.maxcontacts = 40,
},
+ { .name = MT_CLS_VTL,
+ .quirks = MT_QUIRK_ALWAYS_VALID |
+ MT_QUIRK_CONTACT_CNT_ACCURATE |
+ MT_QUIRK_FORCE_GET_FEATURE,
+ },
{ }
};
@@ -809,6 +816,9 @@ static void mt_set_input_mode(struct hid_device *hdev)
struct mt_device *td = hid_get_drvdata(hdev);
struct hid_report *r;
struct hid_report_enum *re;
+ struct mt_class *cls = &td->mtclass;
+ char *buf;
+ int report_len;
if (td->inputmode < 0)
return;
@@ -816,6 +826,18 @@ static void mt_set_input_mode(struct hid_device *hdev)
re = &(hdev->report_enum[HID_FEATURE_REPORT]);
r = re->report_id_hash[td->inputmode];
if (r) {
+ if (cls->quirks & MT_QUIRK_FORCE_GET_FEATURE) {
+ report_len = hid_report_len(r);
+ buf = hid_alloc_report_buf(r, GFP_KERNEL);
+ if (!buf) {
+ hid_err(hdev, "failed to allocate buffer for report\n");
+ return;
+ }
+ hid_hw_raw_request(hdev, r->id, buf, report_len,
+ HID_FEATURE_REPORT,
+ HID_REQ_GET_REPORT);
+ kfree(buf);
+ }
r->field[0]->value[td->inputmode_index] = td->inputmode_value;
hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
}
@@ -1281,6 +1303,11 @@ static const struct hid_device_id mt_devices[] = {
MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
+ /* VTL panels */
+ { .driver_data = MT_CLS_VTL,
+ MT_USB_DEVICE(USB_VENDOR_ID_VTL,
+ USB_DEVICE_ID_VTL_MULTITOUCH_FF3F) },
+
/* Wistron panels */
{ .driver_data = MT_CLS_NSMU,
MT_USB_DEVICE(USB_VENDOR_ID_WISTRON,