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/*
* drivers/arisc/interfaces/arisc_loopback.c
*
* Copyright (c) 2012 Allwinner.
* 2012-10-01 Written by superm (superm@allwinnertech.com).
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "../arisc_i.h"
int arisc_message_loopback(void)
{
int result;
struct arisc_message *pmessage;
/* allocate a message frame */
pmessage = arisc_message_allocate(ARISC_MESSAGE_ATTR_HARDSYN);
if (pmessage == NULL) {
ARISC_WRN("allocate message failed\n");
return -ENOMEM;
}
/* initialize message */
pmessage->type = ARISC_MESSAGE_LOOPBACK;
pmessage->state = ARISC_MESSAGE_INITIALIZED;
pmessage->paras[0] = 11;
pmessage->cb.handler = NULL;
pmessage->cb.arg = NULL;
/* send message use hwmsgbox */
arisc_hwmsgbox_send_message(pmessage, ARISC_SEND_MSG_TIMEOUT);
/* free message */
result = pmessage->result;
arisc_message_free(pmessage);
return result;
}
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