static int sm5502_muic_cable_handler()

in extcon-sm5502.c [471:523]

• 45 lines of code
• 8 McCabe index (conditional complexity)

static int sm5502_muic_cable_handler(struct sm5502_muic_info *info,
				     bool attached)
{
	static unsigned int prev_cable_type = SM5502_MUIC_ADC_GROUND;
	unsigned int cable_type = SM5502_MUIC_ADC_GROUND;
	unsigned int con_sw = DM_DP_SWITCH_OPEN;
	unsigned int vbus_sw = VBUSIN_SWITCH_OPEN;
	unsigned int id;
	int ret;

	/* Get the type of attached or detached cable */
	if (attached)
		cable_type = sm5502_muic_get_cable_type(info);
	else
		cable_type = prev_cable_type;
	prev_cable_type = cable_type;

	switch (cable_type) {
	case SM5502_MUIC_ADC_OPEN_USB:
		id	= EXTCON_USB;
		con_sw	= DM_DP_SWITCH_USB;
		vbus_sw	= VBUSIN_SWITCH_VBUSOUT_WITH_USB;
		break;
	case SM5502_MUIC_ADC_OPEN_TA:
		id	= EXTCON_CHG_USB_DCP;
		con_sw	= DM_DP_SWITCH_OPEN;
		vbus_sw	= VBUSIN_SWITCH_VBUSOUT;
		break;
	case SM5502_MUIC_ADC_GROUND_USB_OTG:
	case SM5502_MUIC_ADC_OPEN_USB_OTG:
		id	= EXTCON_USB_HOST;
		con_sw	= DM_DP_SWITCH_USB;
		vbus_sw	= VBUSIN_SWITCH_OPEN;
		break;
	default:
		dev_dbg(info->dev,
			"cannot handle this cable_type (0x%x)\n", cable_type);
		return 0;
	}

	/* Change internal hardware path(DM_CON/DP_CON, VBUSIN) */
	ret = sm5502_muic_set_path(info, con_sw, vbus_sw, attached);
	if (ret < 0)
		return ret;

	/* Change the state of external accessory */
	extcon_set_state_sync(info->edev, id, attached);
	if (id == EXTCON_USB)
		extcon_set_state_sync(info->edev, EXTCON_CHG_USB_SDP,
					attached);

	return 0;
}