int slim_stream_enable()

in stream.c [350:389]

• 30 lines of code
• 7 McCabe index (conditional complexity)

int slim_stream_enable(struct slim_stream_runtime *stream)
{
	DEFINE_SLIM_BCAST_TXN(txn, SLIM_MSG_MC_BEGIN_RECONFIGURATION,
				3, SLIM_LA_MANAGER, NULL);
	struct slim_controller *ctrl = stream->dev->ctrl;
	int ret, i;

	if (ctrl->enable_stream) {
		ret = ctrl->enable_stream(stream);
		if (ret)
			return ret;

		for (i = 0; i < stream->num_ports; i++)
			stream->ports[i].ch.state = SLIM_CH_STATE_ACTIVE;

		return ret;
	}

	ret = slim_do_transfer(ctrl, &txn);
	if (ret)
		return ret;

	/* define channels first before activating them */
	for (i = 0; i < stream->num_ports; i++) {
		struct slim_port *port = &stream->ports[i];

		slim_define_channel(stream, port);
		slim_define_channel_content(stream, port);
	}

	for (i = 0; i < stream->num_ports; i++) {
		struct slim_port *port = &stream->ports[i];

		slim_activate_channel(stream, port);
		port->state = SLIM_PORT_CONFIGURED;
	}
	txn.mc = SLIM_MSG_MC_RECONFIGURE_NOW;

	return slim_do_transfer(ctrl, &txn);
}