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/*
* Copyright (C) 2014 ARM Limited. All rights reserved.
*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "gralloc_priv.h"
#include "gralloc_vsync.h"
#include "gralloc_vsync_report.h"
#include <sys/ioctl.h>
#include <errno.h>
#define FBIO_WAITFORVSYNC _IOW('F', 0x20, __u32)
#define S3CFB_SET_VSYNC_INT _IOW('F', 206, unsigned int)
int gralloc_vsync_enable(framebuffer_device_t *dev)
{
private_module_t* m = reinterpret_cast<private_module_t*>(dev->common.module);
int interrupt = 1;
if(ioctl(m->framebuffer->fd, S3CFB_SET_VSYNC_INT, &interrupt) < 0) return -errno;
return 0;
}
int gralloc_vsync_disable(framebuffer_device_t *dev)
{
private_module_t* m = reinterpret_cast<private_module_t*>(dev->common.module);
int interrupt = 0;
if(ioctl(m->framebuffer->fd, S3CFB_SET_VSYNC_INT, &interrupt) < 0) return -errno;
return 0;
}
int gralloc_wait_for_vsync(framebuffer_device_t *dev)
{
private_module_t* m = reinterpret_cast<private_module_t*>(dev->common.module);
if ( m->swapInterval )
{
int crtc = 0;
gralloc_mali_vsync_report(MALI_VSYNC_EVENT_BEGIN_WAIT);
if(ioctl(m->framebuffer->fd, FBIO_WAITFORVSYNC, &crtc) < 0)
{
gralloc_mali_vsync_report(MALI_VSYNC_EVENT_END_WAIT);
return -errno;
}
gralloc_mali_vsync_report(MALI_VSYNC_EVENT_END_WAIT);
}
return 0;
}
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