Merge branch 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[pandora-kernel.git] / drivers / hid / hid-multitouch.c

diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index ecd4d2d..62cac4d 100644 (file)
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -64,6 +64,7 @@ struct mt_device {
        struct mt_class *mtclass;       /* our mt device class */
        unsigned last_field_index;      /* last field index of the report */
        unsigned last_slot_field;       /* the last field of a slot */
+       int last_mt_collection; /* last known mt-related collection */
        __s8 inputmode;         /* InputMode HID feature, -1 if non-existent */
        __u8 num_received;      /* how many contacts we received */
        __u8 num_expected;      /* expected last contact index */
@@ -225,8 +226,10 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
                                cls->sn_move);
                        /* touchscreen emulation */
                        set_abs(hi->input, ABS_X, field, cls->sn_move);
-                       td->last_slot_field = usage->hid;
-                       td->last_field_index = field->index;
+                       if (td->last_mt_collection == usage->collection_index) {
+                               td->last_slot_field = usage->hid;
+                               td->last_field_index = field->index;
+                       }
                        return 1;
                case HID_GD_Y:
                        if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP)
@@ -237,8 +240,10 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
                                cls->sn_move);
                        /* touchscreen emulation */
                        set_abs(hi->input, ABS_Y, field, cls->sn_move);
-                       td->last_slot_field = usage->hid;
-                       td->last_field_index = field->index;
+                       if (td->last_mt_collection == usage->collection_index) {
+                               td->last_slot_field = usage->hid;
+                               td->last_field_index = field->index;
+                       }
                        return 1;
                }
                return 0;
@@ -246,31 +251,42 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
        case HID_UP_DIGITIZER:
                switch (usage->hid) {
                case HID_DG_INRANGE:
-                       td->last_slot_field = usage->hid;
-                       td->last_field_index = field->index;
+                       if (td->last_mt_collection == usage->collection_index) {
+                               td->last_slot_field = usage->hid;
+                               td->last_field_index = field->index;
+                       }
                        return 1;
                case HID_DG_CONFIDENCE:
-                       td->last_slot_field = usage->hid;
-                       td->last_field_index = field->index;
+                       if (td->last_mt_collection == usage->collection_index) {
+                               td->last_slot_field = usage->hid;
+                               td->last_field_index = field->index;
+                       }
                        return 1;
                case HID_DG_TIPSWITCH:
                        hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
                        input_set_capability(hi->input, EV_KEY, BTN_TOUCH);
-                       td->last_slot_field = usage->hid;
-                       td->last_field_index = field->index;
+                       if (td->last_mt_collection == usage->collection_index) {
+                               td->last_slot_field = usage->hid;
+                               td->last_field_index = field->index;
+                       }
                        return 1;
                case HID_DG_CONTACTID:
+                       if (!td->maxcontacts)
+                               td->maxcontacts = MT_DEFAULT_MAXCONTACT;
                        input_mt_init_slots(hi->input, td->maxcontacts);
                        td->last_slot_field = usage->hid;
                        td->last_field_index = field->index;
+                       td->last_mt_collection = usage->collection_index;
                        return 1;
                case HID_DG_WIDTH:
                        hid_map_usage(hi, usage, bit, max,
                                        EV_ABS, ABS_MT_TOUCH_MAJOR);
                        set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
                                cls->sn_width);
-                       td->last_slot_field = usage->hid;
-                       td->last_field_index = field->index;
+                       if (td->last_mt_collection == usage->collection_index) {
+                               td->last_slot_field = usage->hid;
+                               td->last_field_index = field->index;
+                       }
                        return 1;
                case HID_DG_HEIGHT:
                        hid_map_usage(hi, usage, bit, max,
@@ -279,8 +295,10 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
                                cls->sn_height);
                        input_set_abs_params(hi->input,
                                        ABS_MT_ORIENTATION, 0, 1, 0, 0);
-                       td->last_slot_field = usage->hid;
-                       td->last_field_index = field->index;
+                       if (td->last_mt_collection == usage->collection_index) {
+                               td->last_slot_field = usage->hid;
+                               td->last_field_index = field->index;
+                       }
                        return 1;
                case HID_DG_TIPPRESSURE:
                        if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP)
@@ -292,16 +310,20 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
                        /* touchscreen emulation */
                        set_abs(hi->input, ABS_PRESSURE, field,
                                cls->sn_pressure);
-                       td->last_slot_field = usage->hid;
-                       td->last_field_index = field->index;
+                       if (td->last_mt_collection == usage->collection_index) {
+                               td->last_slot_field = usage->hid;
+                               td->last_field_index = field->index;
+                       }
                        return 1;
                case HID_DG_CONTACTCOUNT:
-                       td->last_field_index = field->index;
+                       if (td->last_mt_collection == usage->collection_index)
+                               td->last_field_index = field->index;
                        return 1;
                case HID_DG_CONTACTMAX:
                        /* we don't set td->last_slot_field as contactcount and
                         * contact max are global to the report */
-                       td->last_field_index = field->index;
+                       if (td->last_mt_collection == usage->collection_index)
+                               td->last_field_index = field->index;
                        return -1;
                }
                /* let hid-input decide for the others */
@@ -516,6 +538,7 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
        }
        td->mtclass = mtclass;
        td->inputmode = -1;
+       td->last_mt_collection = -1;
        hid_set_drvdata(hdev, td);
 
        ret = hid_parse(hdev);
@@ -526,9 +549,6 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
        if (ret)
                goto fail;
 
-       if (!td->maxcontacts)
-               td->maxcontacts = MT_DEFAULT_MAXCONTACT;
-
        td->slots = kzalloc(td->maxcontacts * sizeof(struct mt_slot),
                                GFP_KERNEL);
        if (!td->slots) {
@@ -593,6 +613,11 @@ static const struct hid_device_id mt_devices[] = {
                HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
                        USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
 
+       /* Chunghwa Telecom touch panels */
+       {  .driver_data = MT_CLS_DEFAULT,
+               HID_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT,
+                       USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },
+
        /* CVTouch panels */
        { .driver_data = MT_CLS_DEFAULT,
                HID_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
@@ -651,6 +676,9 @@ static const struct hid_device_id mt_devices[] = {
        { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
                HID_USB_DEVICE(USB_VENDOR_ID_LUMIO,
                        USB_DEVICE_ID_CRYSTALTOUCH) },
+       { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
+               HID_USB_DEVICE(USB_VENDOR_ID_LUMIO,
+                       USB_DEVICE_ID_CRYSTALTOUCH_DUAL) },
 
        /* MosArt panels */
        { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
@@ -681,10 +709,10 @@ static const struct hid_device_id mt_devices[] = {
                HID_USB_DEVICE(USB_VENDOR_ID_STANTUM,
                        USB_DEVICE_ID_MTP)},
        { .driver_data = MT_CLS_CONFIDENCE,
-               HID_USB_DEVICE(USB_VENDOR_ID_STANTUM,
+               HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
                        USB_DEVICE_ID_MTP_STM)},
        { .driver_data = MT_CLS_CONFIDENCE,
-               HID_USB_DEVICE(USB_VENDOR_ID_STANTUM,
+               HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX,
                        USB_DEVICE_ID_MTP_SITRONIX)},
 
        /* Touch International panels */