1 files changed, 312 insertions, 0 deletions

diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index aa6a08eb7ad..586b2405b0d 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -1248,6 +1248,296 @@ static int wacom_tpc_irq(struct wacom_wac *wacom, size_t len)
 	return 0;
 }
 
+static void wacom_map_usage(struct wacom *wacom, struct hid_usage *usage,
+		struct hid_field *field, __u8 type, __u16 code, int fuzz)
+{
+	struct wacom_wac *wacom_wac = &wacom->wacom_wac;
+	struct input_dev *input = wacom_wac->input;
+	int fmin = field->logical_minimum;
+	int fmax = field->logical_maximum;
+
+	usage->type = type;
+	usage->code = code;
+
+	set_bit(type, input->evbit);
+
+	switch (type) {
+	case EV_ABS:
+		input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
+		input_abs_set_res(input, code,
+				  hidinput_calc_abs_res(field, code));
+		break;
+	case EV_KEY:
+		input_set_capability(input, EV_KEY, code);
+		break;
+	case EV_MSC:
+		input_set_capability(input, EV_MSC, code);
+		break;
+	}
+}
+
+static void wacom_wac_pen_usage_mapping(struct hid_device *hdev,
+		struct hid_field *field, struct hid_usage *usage)
+{
+	struct wacom *wacom = hid_get_drvdata(hdev);
+
+	switch (usage->hid) {
+	case HID_GD_X:
+		wacom_map_usage(wacom, usage, field, EV_ABS, ABS_X, 4);
+		break;
+	case HID_GD_Y:
+		wacom_map_usage(wacom, usage, field, EV_ABS, ABS_Y, 4);
+		break;
+	case HID_DG_TIPPRESSURE:
+		wacom_map_usage(wacom, usage, field, EV_ABS, ABS_PRESSURE, 0);
+		break;
+	case HID_DG_INRANGE:
+		wacom_map_usage(wacom, usage, field, EV_KEY, BTN_TOOL_PEN, 0);
+		break;
+	case HID_DG_INVERT:
+		wacom_map_usage(wacom, usage, field, EV_KEY,
+				BTN_TOOL_RUBBER, 0);
+		break;
+	case HID_DG_ERASER:
+	case HID_DG_TIPSWITCH:
+		wacom_map_usage(wacom, usage, field, EV_KEY, BTN_TOUCH, 0);
+		break;
+	case HID_DG_BARRELSWITCH:
+		wacom_map_usage(wacom, usage, field, EV_KEY, BTN_STYLUS, 0);
+		break;
+	case HID_DG_BARRELSWITCH2:
+		wacom_map_usage(wacom, usage, field, EV_KEY, BTN_STYLUS2, 0);
+		break;
+	case HID_DG_TOOLSERIALNUMBER:
+		wacom_map_usage(wacom, usage, field, EV_MSC, MSC_SERIAL, 0);
+		break;
+	}
+}
+
+static int wacom_wac_pen_event(struct hid_device *hdev, struct hid_field *field,
+		struct hid_usage *usage, __s32 value)
+{
+	struct wacom *wacom = hid_get_drvdata(hdev);
+	struct wacom_wac *wacom_wac = &wacom->wacom_wac;
+	struct input_dev *input = wacom_wac->input;
+
+	/* checking which Tool / tip switch to send */
+	switch (usage->hid) {
+	case HID_DG_INRANGE:
+		wacom_wac->hid_data.inrange_state = value;
+		return 0;
+	case HID_DG_INVERT:
+		wacom_wac->hid_data.invert_state = value;
+		return 0;
+	case HID_DG_ERASER:
+	case HID_DG_TIPSWITCH:
+		wacom_wac->hid_data.tipswitch |= value;
+		return 0;
+	}
+
+	/* send pen events only when touch is up or forced out */
+	if (!usage->type || wacom_wac->shared->touch_down)
+		return 0;
+
+	input_event(input, usage->type, usage->code, value);
+
+	return 0;
+}
+
+static void wacom_wac_pen_report(struct hid_device *hdev,
+		struct hid_report *report)
+{
+	struct wacom *wacom = hid_get_drvdata(hdev);
+	struct wacom_wac *wacom_wac = &wacom->wacom_wac;
+	struct input_dev *input = wacom_wac->input;
+	bool prox = wacom_wac->hid_data.inrange_state;
+
+	if (!wacom_wac->shared->stylus_in_proximity) /* first in prox */
+		/* Going into proximity select tool */
+		wacom_wac->tool[0] = wacom_wac->hid_data.invert_state ?
+						BTN_TOOL_RUBBER : BTN_TOOL_PEN;
+
+	/* keep pen state for touch events */
+	wacom_wac->shared->stylus_in_proximity = prox;
+
+	/* send pen events only when touch is up or forced out */
+	if (!wacom_wac->shared->touch_down) {
+		input_report_key(input, BTN_TOUCH,
+				wacom_wac->hid_data.tipswitch);
+		input_report_key(input, wacom_wac->tool[0], prox);
+
+		wacom_wac->hid_data.tipswitch = false;
+
+		input_sync(input);
+	}
+}
+
+static void wacom_wac_finger_usage_mapping(struct hid_device *hdev,
+		struct hid_field *field, struct hid_usage *usage)
+{
+	struct wacom *wacom = hid_get_drvdata(hdev);
+	struct wacom_wac *wacom_wac = &wacom->wacom_wac;
+	struct input_dev *input = wacom_wac->input;
+	unsigned touch_max = wacom_wac->features.touch_max;
+
+	switch (usage->hid) {
+	case HID_GD_X:
+		if (touch_max == 1)
+			wacom_map_usage(wacom, usage, field, EV_ABS, ABS_X, 4);
+		else
+			wacom_map_usage(wacom, usage, field, EV_ABS,
+					ABS_MT_POSITION_X, 4);
+		break;
+	case HID_GD_Y:
+		if (touch_max == 1)
+			wacom_map_usage(wacom, usage, field, EV_ABS, ABS_Y, 4);
+		else
+			wacom_map_usage(wacom, usage, field, EV_ABS,
+					ABS_MT_POSITION_Y, 4);
+		break;
+	case HID_DG_CONTACTID:
+		input_mt_init_slots(input, wacom_wac->features.touch_max,
+			INPUT_MT_DIRECT);
+		break;
+	case HID_DG_INRANGE:
+		break;
+	case HID_DG_INVERT:
+		break;
+	case HID_DG_TIPSWITCH:
+		wacom_map_usage(wacom, usage, field, EV_KEY, BTN_TOUCH, 0);
+		break;
+	}
+}
+
+static int wacom_wac_finger_event(struct hid_device *hdev,
+		struct hid_field *field, struct hid_usage *usage, __s32 value)
+{
+	struct wacom *wacom = hid_get_drvdata(hdev);
+	struct wacom_wac *wacom_wac = &wacom->wacom_wac;
+
+	switch (usage->hid) {
+	case HID_GD_X:
+		wacom_wac->hid_data.x = value;
+		break;
+	case HID_GD_Y:
+		wacom_wac->hid_data.y = value;
+		break;
+	case HID_DG_CONTACTID:
+		wacom_wac->hid_data.id = value;
+		break;
+	case HID_DG_TIPSWITCH:
+		wacom_wac->hid_data.tipswitch = value;
+		break;
+	}
+
+
+	return 0;
+}
+
+static void wacom_wac_finger_mt_report(struct wacom_wac *wacom_wac,
+		struct input_dev *input, bool touch)
+{
+	int slot;
+	struct hid_data *hid_data = &wacom_wac->hid_data;
+
+	slot = input_mt_get_slot_by_key(input, hid_data->id);
+
+	input_mt_slot(input, slot);
+	input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
+	if (touch) {
+		input_report_abs(input, ABS_MT_POSITION_X, hid_data->x);
+		input_report_abs(input, ABS_MT_POSITION_Y, hid_data->y);
+	}
+	input_mt_sync_frame(input);
+}
+
+static void wacom_wac_finger_single_touch_report(struct wacom_wac *wacom_wac,
+		struct input_dev *input, bool touch)
+{
+	struct hid_data *hid_data = &wacom_wac->hid_data;
+
+	if (touch) {
+		input_report_abs(input, ABS_X, hid_data->x);
+		input_report_abs(input, ABS_Y, hid_data->y);
+	}
+	input_report_key(input, BTN_TOUCH, touch);
+}
+
+static void wacom_wac_finger_report(struct hid_device *hdev,
+		struct hid_report *report)
+{
+	struct wacom *wacom = hid_get_drvdata(hdev);
+	struct wacom_wac *wacom_wac = &wacom->wacom_wac;
+	struct input_dev *input = wacom_wac->input;
+	bool touch = wacom_wac->hid_data.tipswitch &&
+		     !wacom_wac->shared->stylus_in_proximity;
+	unsigned touch_max = wacom_wac->features.touch_max;
+
+	if (touch_max > 1)
+		wacom_wac_finger_mt_report(wacom_wac, input, touch);
+	else
+		wacom_wac_finger_single_touch_report(wacom_wac, input, touch);
+	input_sync(input);
+
+	/* keep touch state for pen event */
+	wacom_wac->shared->touch_down = touch;
+}
+
+#define WACOM_PEN_FIELD(f)	(((f)->logical == HID_DG_STYLUS) || \
+				 ((f)->physical == HID_DG_STYLUS))
+#define WACOM_FINGER_FIELD(f)	(((f)->logical == HID_DG_FINGER) || \
+				 ((f)->physical == HID_DG_FINGER))
+
+void wacom_wac_usage_mapping(struct hid_device *hdev,
+		struct hid_field *field, struct hid_usage *usage)
+{
+	struct wacom *wacom = hid_get_drvdata(hdev);
+	struct wacom_wac *wacom_wac = &wacom->wacom_wac;
+	struct input_dev *input = wacom_wac->input;
+
+	/* currently, only direct devices have proper hid report descriptors */
+	__set_bit(INPUT_PROP_DIRECT, input->propbit);
+
+	if (WACOM_PEN_FIELD(field))
+		return wacom_wac_pen_usage_mapping(hdev, field, usage);
+
+	if (WACOM_FINGER_FIELD(field))
+		return wacom_wac_finger_usage_mapping(hdev, field, usage);
+}
+
+int wacom_wac_event(struct hid_device *hdev, struct hid_field *field,
+		struct hid_usage *usage, __s32 value)
+{
+	struct wacom *wacom = hid_get_drvdata(hdev);
+
+	if (wacom->wacom_wac.features.type != HID_GENERIC)
+		return 0;
+
+	if (WACOM_PEN_FIELD(field))
+		return wacom_wac_pen_event(hdev, field, usage, value);
+
+	if (WACOM_FINGER_FIELD(field))
+		return wacom_wac_finger_event(hdev, field, usage, value);
+
+	return 0;
+}
+
+void wacom_wac_report(struct hid_device *hdev, struct hid_report *report)
+{
+	struct wacom *wacom = hid_get_drvdata(hdev);
+	struct wacom_wac *wacom_wac = &wacom->wacom_wac;
+	struct hid_field *field = report->field[0];
+
+	if (wacom_wac->features.type != HID_GENERIC)
+		return;
+
+	if (WACOM_PEN_FIELD(field))
+		return wacom_wac_pen_report(hdev, report);
+
+	if (WACOM_FINGER_FIELD(field))
+		return wacom_wac_finger_report(hdev, report);
+}
+
 static int wacom_bpt_touch(struct wacom_wac *wacom)
 {
 	struct wacom_features *features = &wacom->features;
@@ -1746,6 +2036,10 @@ int wacom_setup_input_capabilities(struct input_dev *input_dev,
 
 	input_dev->evbit[0] |= BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
 
+	if (features->type == HID_GENERIC)
+		/* setup has already been done */
+		return 0;
+
 	__set_bit(BTN_TOUCH, input_dev->keybit);
 	__set_bit(ABS_MISC, input_dev->absbit);
 
@@ -1990,6 +2284,9 @@ int wacom_setup_pad_input_capabilities(struct input_dev *input_dev,
 	input_set_abs_params(input_dev, ABS_X, 0, 1, 0, 0);
 	input_set_abs_params(input_dev, ABS_Y, 0, 1, 0, 0);
 
+	/* kept for making udev and libwacom accepting the pad */
+	__set_bit(BTN_STYLUS, input_dev->keybit);
+
 	switch (features->type) {
 	case GRAPHIRE_BT:
 		__set_bit(BTN_0, input_dev->keybit);
@@ -2573,6 +2870,17 @@ static const struct wacom_features wacom_features_0x309 =
 	{ "Wacom ISDv5 309", .type = WACOM_24HDT, /* Touch */
 	  .oVid = USB_VENDOR_ID_WACOM, .oPid = 0x0307, .touch_max = 10,
 	  .check_for_hid_type = true, .hid_type = HID_TYPE_USBNONE };
+static const struct wacom_features wacom_features_0x30A =
+	{ "Wacom ISDv5 30A", 59352, 33648, 2047, 63,
+	  CINTIQ_HYBRID, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 200, 200,
+	  .oVid = USB_VENDOR_ID_WACOM, .oPid = 0x30C };
+static const struct wacom_features wacom_features_0x30C =
+	{ "Wacom ISDv5 30C", .type = WACOM_24HDT, /* Touch */
+	  .oVid = USB_VENDOR_ID_WACOM, .oPid = 0x30A, .touch_max = 10,
+	  .check_for_hid_type = true, .hid_type = HID_TYPE_USBNONE };
+
+static const struct wacom_features wacom_features_HID_ANY_ID =
+	{ "Wacom HID", .type = HID_GENERIC };
 
 #define USB_DEVICE_WACOM(prod)						\
 	HID_DEVICE(BUS_USB, HID_GROUP_WACOM, USB_VENDOR_ID_WACOM, prod),\
@@ -2708,6 +3016,8 @@ const struct hid_device_id wacom_ids[] = {
 	{ USB_DEVICE_WACOM(0x304) },
 	{ USB_DEVICE_WACOM(0x307) },
 	{ USB_DEVICE_WACOM(0x309) },
+	{ USB_DEVICE_WACOM(0x30A) },
+	{ USB_DEVICE_WACOM(0x30C) },
 	{ USB_DEVICE_WACOM(0x30E) },
 	{ USB_DEVICE_WACOM(0x314) },
 	{ USB_DEVICE_WACOM(0x315) },
@@ -2716,6 +3026,8 @@ const struct hid_device_id wacom_ids[] = {
 	{ USB_DEVICE_WACOM(0x4004) },
 	{ USB_DEVICE_WACOM(0x5000) },
 	{ USB_DEVICE_WACOM(0x5002) },
+
+	{ USB_DEVICE_WACOM(HID_ANY_ID) },
 	{ }
 };
 MODULE_DEVICE_TABLE(hid, wacom_ids);