50 строки
1.2 KiB
C
50 строки
1.2 KiB
C
|
/*
|
||
|
|
* Copyright 2012 Tilera Corporation. All Rights Reserved.
|
||
|
|
*
|
||
|
|
* 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, version 2.
|
||
|
|
*
|
||
|
|
* 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, GOOD TITLE or
|
||
|
|
* NON INFRINGEMENT. See the GNU General Public License for
|
||
|
|
* more details.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Implementation of trio gxio calls.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/errno.h>
|
||
|
|
#include <linux/io.h>
|
||
|
|
#include <linux/module.h>
|
||
|
|
|
||
|
|
#include <gxio/trio.h>
|
||
|
|
#include <gxio/iorpc_globals.h>
|
||
|
|
#include <gxio/iorpc_trio.h>
|
||
|
|
#include <gxio/kiorpc.h>
|
||
|
|
|
||
|
|
int gxio_trio_init(gxio_trio_context_t *context, unsigned int trio_index)
|
||
|
|
{
|
||
|
|
char file[32];
|
||
|
|
int fd;
|
||
|
|
|
||
|
|
snprintf(file, sizeof(file), "trio/%d/iorpc", trio_index);
|
||
|
|
fd = hv_dev_open((HV_VirtAddr) file, 0);
|
||
|
|
if (fd < 0) {
|
||
|
|
context->fd = -1;
|
||
|
|
|
||
|
|
if (fd >= GXIO_ERR_MIN && fd <= GXIO_ERR_MAX)
|
||
|
|
return fd;
|
||
|
|
else
|
||
|
|
return -ENODEV;
|
||
|
|
}
|
||
|
|
|
||
|
|
context->fd = fd;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
EXPORT_SYMBOL_GPL(gxio_trio_init);
|