static int ti_eqep_function_read()

in ti-eqep.c [120:145]

• 23 lines of code
• 5 McCabe index (conditional complexity)

static int ti_eqep_function_read(struct counter_device *counter,
				 struct counter_count *count,
				 enum counter_function *function)
{
	struct ti_eqep_cnt *priv = ti_eqep_count_from_counter(counter);
	u32 qdecctl;

	regmap_read(priv->regmap16, QDECCTL, &qdecctl);

	switch ((qdecctl & QDECCTL_QSRC) >> QDECCTL_QSRC_SHIFT) {
	case TI_EQEP_COUNT_FUNC_QUAD_COUNT:
		*function = COUNTER_FUNCTION_QUADRATURE_X4;
		break;
	case TI_EQEP_COUNT_FUNC_DIR_COUNT:
		*function = COUNTER_FUNCTION_PULSE_DIRECTION;
		break;
	case TI_EQEP_COUNT_FUNC_UP_COUNT:
		*function = COUNTER_FUNCTION_INCREASE;
		break;
	case TI_EQEP_COUNT_FUNC_DOWN_COUNT:
		*function = COUNTER_FUNCTION_DECREASE;
		break;
	}

	return 0;
}