blob: 74f11b129fdabd529f8d27aa83ee64e109c6b5dd
| 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 | |
| 27 | int gralloc_vsync_enable(framebuffer_device_t *dev) |
| 28 | { |
| 29 | return 0; |
| 30 | } |
| 31 | |
| 32 | int gralloc_vsync_disable(framebuffer_device_t *dev) |
| 33 | { |
| 34 | return 0; |
| 35 | } |
| 36 | |
| 37 | int gralloc_wait_for_vsync(framebuffer_device_t *dev) |
| 38 | { |
| 39 | framebuffer_t* fb = reinterpret_cast<framebuffer_t*>(dev); |
| 40 | // if this handle was created in this process, then we keep it as is. |
| 41 | private_handle_t *hnd = (private_handle_t *)fb->fb_hnd; |
| 42 | if (private_handle_t::validate(hnd) < 0) |
| 43 | { |
| 44 | AERR("Registering invalid buffer 0x%p, returning error", hnd); |
| 45 | return -EINVAL; |
| 46 | } |
| 47 | |
| 48 | private_module_t* m = reinterpret_cast<private_module_t*>(dev->common.module); |
| 49 | framebuffer_mapper_t* m_fb = NULL; |
| 50 | #ifdef DEBUG_EXTERNAL_DISPLAY_ON_PANEL |
| 51 | ALOGD("always alloc from fb0"); |
| 52 | m_fb = &(m->fb_primary); |
| 53 | #else |
| 54 | if (hnd->usage & GRALLOC_USAGE_EXTERNAL_DISP) |
| 55 | { |
| 56 | m_fb = &(m->fb_external); |
| 57 | } |
| 58 | else |
| 59 | { |
| 60 | m_fb = &(m->fb_primary); |
| 61 | } |
| 62 | #endif |
| 63 | if (MALI_DPY_TYPE_CLCD == m->dpy_type || MALI_DPY_TYPE_HDLCD == m->dpy_type) |
| 64 | { |
| 65 | /* Silently ignore wait for vsync as neither PL111 nor HDLCD implement this IOCTL. */ |
| 66 | return 0; |
| 67 | } |
| 68 | |
| 69 | if ( m->swapInterval ) |
| 70 | { |
| 71 | int crtc = 0; |
| 72 | gralloc_mali_vsync_report(MALI_VSYNC_EVENT_BEGIN_WAIT); |
| 73 | if (ioctl(m_fb->framebuffer->fd, FBIO_WAITFORVSYNC, &crtc) < 0) |
| 74 | { |
| 75 | gralloc_mali_vsync_report(MALI_VSYNC_EVENT_END_WAIT); |
| 76 | return -errno; |
| 77 | } |
| 78 | gralloc_mali_vsync_report(MALI_VSYNC_EVENT_END_WAIT); |
| 79 | } |
| 80 | return 0; |
| 81 | } |
| 82 |