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