int wacom_setup_pen_input_capabilities()

in wacom_wac.c [3610:3773]

• 140 lines of code
• 56 McCabe index (conditional complexity)

int wacom_setup_pen_input_capabilities(struct input_dev *input_dev,
				   struct wacom_wac *wacom_wac)
{
	struct wacom_features *features = &wacom_wac->features;

	if (!(features->device_type & WACOM_DEVICETYPE_PEN))
		return -ENODEV;

	if (features->device_type & WACOM_DEVICETYPE_DIRECT)
		__set_bit(INPUT_PROP_DIRECT, input_dev->propbit);
	else
		__set_bit(INPUT_PROP_POINTER, input_dev->propbit);

	if (features->type == HID_GENERIC)
		/* setup has already been done */
		return 0;

	input_dev->evbit[0] |= BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
	__set_bit(BTN_TOUCH, input_dev->keybit);
	__set_bit(ABS_MISC, input_dev->absbit);

	input_set_abs_params(input_dev, ABS_X, 0 + features->offset_left,
			     features->x_max - features->offset_right,
			     features->x_fuzz, 0);
	input_set_abs_params(input_dev, ABS_Y, 0 + features->offset_top,
			     features->y_max - features->offset_bottom,
			     features->y_fuzz, 0);
	input_set_abs_params(input_dev, ABS_PRESSURE, 0,
		features->pressure_max, features->pressure_fuzz, 0);

	/* penabled devices have fixed resolution for each model */
	input_abs_set_res(input_dev, ABS_X, features->x_resolution);
	input_abs_set_res(input_dev, ABS_Y, features->y_resolution);

	switch (features->type) {
	case GRAPHIRE_BT:
		__clear_bit(ABS_MISC, input_dev->absbit);
		fallthrough;

	case WACOM_MO:
	case WACOM_G4:
		input_set_abs_params(input_dev, ABS_DISTANCE, 0,
					      features->distance_max,
					      features->distance_fuzz, 0);
		fallthrough;

	case GRAPHIRE:
		input_set_capability(input_dev, EV_REL, REL_WHEEL);

		__set_bit(BTN_LEFT, input_dev->keybit);
		__set_bit(BTN_RIGHT, input_dev->keybit);
		__set_bit(BTN_MIDDLE, input_dev->keybit);

		__set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
		__set_bit(BTN_TOOL_PEN, input_dev->keybit);
		__set_bit(BTN_TOOL_MOUSE, input_dev->keybit);
		__set_bit(BTN_STYLUS, input_dev->keybit);
		__set_bit(BTN_STYLUS2, input_dev->keybit);
		break;

	case WACOM_27QHD:
	case WACOM_24HD:
	case DTK:
	case WACOM_22HD:
	case WACOM_21UX2:
	case WACOM_BEE:
	case CINTIQ:
	case WACOM_13HD:
	case CINTIQ_HYBRID:
	case CINTIQ_COMPANION_2:
		input_set_abs_params(input_dev, ABS_Z, -900, 899, 0, 0);
		input_abs_set_res(input_dev, ABS_Z, 287);
		wacom_setup_cintiq(wacom_wac);
		break;

	case INTUOS3:
	case INTUOS3L:
	case INTUOS3S:
	case INTUOS4:
	case INTUOS4WL:
	case INTUOS4L:
	case INTUOS4S:
		input_set_abs_params(input_dev, ABS_Z, -900, 899, 0, 0);
		input_abs_set_res(input_dev, ABS_Z, 287);
		fallthrough;

	case INTUOS:
		wacom_setup_intuos(wacom_wac);
		break;

	case INTUOS5:
	case INTUOS5L:
	case INTUOSPM:
	case INTUOSPL:
	case INTUOS5S:
	case INTUOSPS:
	case INTUOSP2_BT:
	case INTUOSP2S_BT:
		input_set_abs_params(input_dev, ABS_DISTANCE, 0,
				      features->distance_max,
				      features->distance_fuzz, 0);

		input_set_abs_params(input_dev, ABS_Z, -900, 899, 0, 0);
		input_abs_set_res(input_dev, ABS_Z, 287);

		wacom_setup_intuos(wacom_wac);
		break;

	case WACOM_24HDT:
	case WACOM_27QHDT:
	case MTSCREEN:
	case MTTPC:
	case MTTPC_B:
	case TABLETPC2FG:
	case TABLETPC:
	case TABLETPCE:
		__clear_bit(ABS_MISC, input_dev->absbit);
		fallthrough;

	case DTUS:
	case DTUSX:
	case PL:
	case DTU:
		__set_bit(BTN_TOOL_PEN, input_dev->keybit);
		__set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
		__set_bit(BTN_STYLUS, input_dev->keybit);
		__set_bit(BTN_STYLUS2, input_dev->keybit);
		break;

	case PTU:
		__set_bit(BTN_STYLUS2, input_dev->keybit);
		fallthrough;

	case PENPARTNER:
		__set_bit(BTN_TOOL_PEN, input_dev->keybit);
		__set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
		__set_bit(BTN_STYLUS, input_dev->keybit);
		break;

	case INTUOSHT:
	case BAMBOO_PT:
	case BAMBOO_PEN:
	case INTUOSHT2:
	case INTUOSHT3_BT:
		if (features->type == INTUOSHT2 ||
		    features->type == INTUOSHT3_BT) {
			wacom_setup_basic_pro_pen(wacom_wac);
		} else {
			__clear_bit(ABS_MISC, input_dev->absbit);
			__set_bit(BTN_TOOL_PEN, input_dev->keybit);
			__set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
			__set_bit(BTN_STYLUS, input_dev->keybit);
			__set_bit(BTN_STYLUS2, input_dev->keybit);
			input_set_abs_params(input_dev, ABS_DISTANCE, 0,
				      features->distance_max,
				      features->distance_fuzz, 0);
		}
		break;
	case BAMBOO_PAD:
		__clear_bit(ABS_MISC, input_dev->absbit);
		break;
	}
	return 0;
}