diff options
Diffstat (limited to 'drivers/hid')
| -rw-r--r-- | drivers/hid/hid-multitouch.c | 64 |
1 files changed, 25 insertions, 39 deletions
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index 019de83def6..2088ab4e5db 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -75,7 +75,6 @@ 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 */ __s8 maxcontact_report_id; /* Maximum Contact Number HID feature, -1 if non-existent */ @@ -273,6 +272,13 @@ static void set_abs(struct input_dev *input, unsigned int code, input_set_abs_params(input, code, fmin, fmax, fuzz, 0); } +static void set_last_slot_field(struct hid_usage *usage, struct mt_device *td, + struct hid_input *hi) +{ + if (!test_bit(usage->hid, hi->input->absbit)) + td->last_slot_field = usage->hid; +} + static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi, struct hid_field *field, struct hid_usage *usage, unsigned long **bit, int *max) @@ -321,10 +327,8 @@ 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); - if (td->last_mt_collection == usage->collection_index) { - td->last_slot_field = usage->hid; - td->last_field_index = field->index; - } + set_last_slot_field(usage, td, hi); + td->last_field_index = field->index; return 1; case HID_GD_Y: hid_map_usage(hi, usage, bit, max, @@ -333,10 +337,8 @@ 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); - if (td->last_mt_collection == usage->collection_index) { - td->last_slot_field = usage->hid; - td->last_field_index = field->index; - } + set_last_slot_field(usage, td, hi); + td->last_field_index = field->index; return 1; } return 0; @@ -344,24 +346,18 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi, case HID_UP_DIGITIZER: switch (usage->hid) { case HID_DG_INRANGE: - if (td->last_mt_collection == usage->collection_index) { - td->last_slot_field = usage->hid; - td->last_field_index = field->index; - } + set_last_slot_field(usage, td, hi); + td->last_field_index = field->index; return 1; case HID_DG_CONFIDENCE: - if (td->last_mt_collection == usage->collection_index) { - td->last_slot_field = usage->hid; - td->last_field_index = field->index; - } + set_last_slot_field(usage, td, hi); + 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); - if (td->last_mt_collection == usage->collection_index) { - td->last_slot_field = usage->hid; - td->last_field_index = field->index; - } + set_last_slot_field(usage, td, hi); + td->last_field_index = field->index; return 1; case HID_DG_CONTACTID: if (!td->maxcontacts) @@ -369,17 +365,14 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi, 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); - if (td->last_mt_collection == usage->collection_index) { - td->last_slot_field = usage->hid; - td->last_field_index = field->index; - } + set_last_slot_field(usage, td, hi); + td->last_field_index = field->index; return 1; case HID_DG_HEIGHT: hid_map_usage(hi, usage, bit, max, @@ -388,10 +381,8 @@ 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); - if (td->last_mt_collection == usage->collection_index) { - td->last_slot_field = usage->hid; - td->last_field_index = field->index; - } + set_last_slot_field(usage, td, hi); + td->last_field_index = field->index; return 1; case HID_DG_TIPPRESSURE: hid_map_usage(hi, usage, bit, max, @@ -401,20 +392,16 @@ 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); - if (td->last_mt_collection == usage->collection_index) { - td->last_slot_field = usage->hid; - td->last_field_index = field->index; - } + set_last_slot_field(usage, td, hi); + td->last_field_index = field->index; return 1; case HID_DG_CONTACTCOUNT: - if (td->last_mt_collection == usage->collection_index) - td->last_field_index = field->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 */ - if (td->last_mt_collection == usage->collection_index) - td->last_field_index = field->index; + td->last_field_index = field->index; return -1; } case HID_DG_TOUCH: @@ -670,7 +657,6 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) td->mtclass = *mtclass; td->inputmode = -1; td->maxcontact_report_id = -1; - td->last_mt_collection = -1; hid_set_drvdata(hdev, td); ret = hid_parse(hdev); |