Merge remote-tracking branch 'wireless-next/master'

[karo-tx-linux.git] / drivers / hid / hid-multitouch.c

diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index ac28f08c38660b0051500242f8562b587007cf90..cb3250c5a397f9ba19b5974792e1cee374e9f9f0 100644 (file)
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -101,9 +101,9 @@ struct mt_device {
        unsigned last_slot_field;       /* the last field of a slot */
        unsigned mt_report_id;  /* the report ID of the multitouch device */
        unsigned pen_report_id; /* the report ID of the pen device */
-       __s8 inputmode;         /* InputMode HID feature, -1 if non-existent */
-       __s8 inputmode_index;   /* InputMode HID feature index in the report */
-       __s8 maxcontact_report_id;      /* Maximum Contact Number HID feature,
+       __s16 inputmode;        /* InputMode HID feature, -1 if non-existent */
+       __s16 inputmode_index;  /* InputMode HID feature index in the report */
+       __s16 maxcontact_report_id;     /* Maximum Contact Number HID feature,
                                   -1 if non-existent */
        __u8 num_received;      /* how many contacts we received */
        __u8 num_expected;      /* expected last contact index */
@@ -250,12 +250,12 @@ static struct mt_class mt_classes[] = {
        { .name = MT_CLS_GENERALTOUCH_TWOFINGERS,
                .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
                        MT_QUIRK_VALID_IS_INRANGE |
-                       MT_QUIRK_SLOT_IS_CONTACTNUMBER,
+                       MT_QUIRK_SLOT_IS_CONTACTID,
                .maxcontacts = 2
        },
        { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
                .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
-                       MT_QUIRK_SLOT_IS_CONTACTNUMBER
+                       MT_QUIRK_SLOT_IS_CONTACTID
        },
 
        { .name = MT_CLS_FLATFROG,
@@ -312,20 +312,18 @@ static void mt_feature_mapping(struct hid_device *hdev,
                struct hid_field *field, struct hid_usage *usage)
 {
        struct mt_device *td = hid_get_drvdata(hdev);
-       int i;
 
        switch (usage->hid) {
        case HID_DG_INPUTMODE:
-               td->inputmode = field->report->id;
-               td->inputmode_index = 0; /* has to be updated below */
-
-               for (i=0; i < field->maxusage; i++) {
-                       if (field->usage[i].hid == usage->hid) {
-                               td->inputmode_index = i;
-                               break;
-                       }
+               /* Ignore if value index is out of bounds. */
+               if (usage->usage_index >= field->report_count) {
+                       dev_err(&hdev->dev, "HID_DG_INPUTMODE out of range\n");
+                       break;
                }
 
+               td->inputmode = field->report->id;
+               td->inputmode_index = usage->usage_index;
+
                break;
        case HID_DG_CONTACTMAX:
                td->maxcontact_report_id = field->report->id;
@@ -511,6 +509,10 @@ static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
                        mt_store_field(usage, td, hi);
                        return 1;
                case HID_DG_CONTACTCOUNT:
+                       /* Ignore if indexes are out of bounds. */
+                       if (field->index >= field->report->maxfield ||
+                           usage->usage_index >= field->report_count)
+                               return 1;
                        td->cc_index = field->index;
                        td->cc_value_index = usage->usage_index;
                        return 1;
@@ -1171,6 +1173,21 @@ static const struct hid_device_id mt_devices[] = {
        { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
                MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
                        USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) },
+       { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
+               MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
+                       USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0101) },
+       { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
+               MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
+                       USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0102) },
+       { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
+               MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
+                       USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0106) },
+       { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
+               MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
+                       USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_010A) },
+       { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
+               MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
+                       USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100) },
 
        /* Gametel game controller */
        { .driver_data = MT_CLS_NSMU,