asdk-repo-libdce

/*

 * Copyright (c) 2014, Texas Instruments Incorporated

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 * *  Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 *

 * *  Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * *  Neither the name of Texas Instruments Incorporated nor the names of

 *    its contributors may be used to endorse or promote products derived

 *    from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;

 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,

 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR

 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,

 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

​

#include <fcntl.h>

#include <sys/ioctl.h>

#include <sys/mman.h>

#include <sys/eventfd.h>

#include <pthread.h>

​

#include "memplugin.h"

#include "libdce.h"

​

#include <xf86drm.h>

#include <omap_drm.h>

#include <omap_drmif.h>

#include <utils/Log.h>

​

​

#define LINUX_PAGE_SIZE 4096

#define INVALID_DRM_FD (-1)

​

int                    OmapDrm_FD  = INVALID_DRM_FD;

struct omap_device    *OmapDev     = NULL;

extern pthread_mutex_t    ipc_mutex;

extern int is_ipc_ready;

​

int memplugin_open()

{

    if (OmapDev)

        return MEM_EOK;

​

    /* Open omapdrm device */

    if( OmapDrm_FD == INVALID_DRM_FD ) {

    OmapDrm_FD = open("/dev/dri/renderD128", O_RDWR, 0);