blob: 6aff359d74b6e932abcc4db8d8519c6f46545fea
| 1 | /* |
| 2 | * Copyright (C) 2014 ARM Limited. All rights reserved. |
| 3 | * |
| 4 | * Copyright (C) 2008 The Android Open Source Project |
| 5 | * |
| 6 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 7 | * You may not use this file except in compliance with the License. |
| 8 | * You may obtain a copy of the License at |
| 9 | * |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | * |
| 12 | * Unless required by applicable law or agreed to in writing, software |
| 13 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 15 | * See the License for the specific language governing permissions and |
| 16 | * limitations under the License. |
| 17 | */ |
| 18 | |
| 19 | #include "gralloc_priv.h" |
| 20 | #include "gralloc_vsync.h" |
| 21 | #include "gralloc_vsync_report.h" |
| 22 | #include <sys/ioctl.h> |
| 23 | #include <errno.h> |
| 24 | |
| 25 | #define FBIO_WAITFORVSYNC _IOW('F', 0x20, __u32) |
| 26 | #define S3CFB_SET_VSYNC_INT _IOW('F', 206, unsigned int) |
| 27 | |
| 28 | int gralloc_vsync_enable(framebuffer_device_t *dev) |
| 29 | { |
| 30 | private_module_t* m = reinterpret_cast<private_module_t*>(dev->common.module); |
| 31 | int interrupt = 1; |
| 32 | if (ioctl(m->framebuffer->fd, S3CFB_SET_VSYNC_INT, &interrupt) < 0) return -errno; |
| 33 | return 0; |
| 34 | } |
| 35 | |
| 36 | int gralloc_vsync_disable(framebuffer_device_t *dev) |
| 37 | { |
| 38 | private_module_t* m = reinterpret_cast<private_module_t*>(dev->common.module); |
| 39 | int interrupt = 0; |
| 40 | if (ioctl(m->framebuffer->fd, S3CFB_SET_VSYNC_INT, &interrupt) < 0) return -errno; |
| 41 | return 0; |
| 42 | } |
| 43 | |
| 44 | int gralloc_wait_for_vsync(framebuffer_device_t *dev) |
| 45 | { |
| 46 | private_module_t* m = reinterpret_cast<private_module_t*>(dev->common.module); |
| 47 | if ( m->swapInterval ) |
| 48 | { |
| 49 | int crtc = 0; |
| 50 | gralloc_mali_vsync_report(MALI_VSYNC_EVENT_BEGIN_WAIT); |
| 51 | if (ioctl(m->framebuffer->fd, FBIO_WAITFORVSYNC, &crtc) < 0) |
| 52 | { |
| 53 | gralloc_mali_vsync_report(MALI_VSYNC_EVENT_END_WAIT); |
| 54 | return -errno; |
| 55 | } |
| 56 | gralloc_mali_vsync_report(MALI_VSYNC_EVENT_END_WAIT); |
| 57 | } |
| 58 | return 0; |
| 59 | } |
| 60 |