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Commit 103b9b0b authored by Jag Raman's avatar Jag Raman Committed by David S. Miller
Browse files

sparc64: vcc: Enable LDC event processing engine 



Enable event processing engine to handle LDC events

Signed-off-by: default avatarJagannathan Raman <jag.raman@oracle.com>
Reviewed-by: default avatarLiam Merwick <liam.merwick@oracle.com>
Reviewed-by: default avatarShannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent f8c55335

drivers/tty/vcc.c

+34 −0
Original line number Diff line number Diff line
@@ -437,8 +437,42 @@ static void vcc_tx_timer(unsigned long index) 
	vcc_put(port, false);

}



/**

 * vcc_event() - LDC event processing engine

 * @arg: VCC private data

 * @event: LDC event

 *

 * Handles LDC events for VCC

 */

static void vcc_event(void *arg, int event)

{

	struct vio_driver_state *vio;

	struct vcc_port *port;

	unsigned long flags;

	int rv;



	port = arg;

	vio = &port->vio;



	spin_lock_irqsave(&port->lock, flags);



	switch (event) {

	case LDC_EVENT_RESET:

	case LDC_EVENT_UP:

		vio_link_state_change(vio, event);

		break;



	case LDC_EVENT_DATA_READY:

		rv = vcc_ldc_read(port);

		if (rv == -ECONNRESET)

			vio_conn_reset(vio);

		break;



	default:

		pr_err("VCC: unexpected LDC event(%d)\n", event);

	}



	spin_unlock_irqrestore(&port->lock, flags);

}



static struct ldc_channel_config vcc_ldc_cfg = {