65 lines
1.9 KiB
C
Executable file
65 lines
1.9 KiB
C
Executable file
/*
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* drivers/arisc/interfaces/arisc_loopback.c
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*
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* Copyright (c) 2012 Allwinner.
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* 2012-05-01 Written by sunny (sunny@allwinnertech.com).
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* 2012-10-01 Written by superm (superm@allwinnertech.com).
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "../arisc_i.h"
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#if defined CONFIG_SUNXI_ARISC_COM_DIRECTLY
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int arisc_message_loopback(void)
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{
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int result;
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struct arisc_message *pmessage;
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/* allocate a message frame */
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pmessage = arisc_message_allocate(ARISC_MESSAGE_ATTR_HARDSYN);
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if (pmessage == NULL) {
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ARISC_WRN("allocate message failed\n");
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return -ENOMEM;
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}
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/* initialize message */
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pmessage->type = ARISC_MESSAGE_LOOPBACK;
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pmessage->state = ARISC_MESSAGE_INITIALIZED;
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pmessage->paras[0] = 11;
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pmessage->cb.handler = NULL;
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pmessage->cb.arg = NULL;
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/* send message use hwmsgbox */
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arisc_hwmsgbox_send_message(pmessage, ARISC_SEND_MSG_TIMEOUT);
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/* free message */
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result = pmessage->result;
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arisc_message_free(pmessage);
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return result;
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}
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EXPORT_SYMBOL(arisc_message_loopback);
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#else
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int arisc_message_loopback(void)
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{
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int result;
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result = invoke_scp_fn_smc(ARM_SVC_ARISC_MESSAGE_LOOPBACK, 0, 0, 0);
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return result;
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}
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EXPORT_SYMBOL(arisc_message_loopback);
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#endif
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