diff options
| -rw-r--r-- | src/v4l2/v4l2_camera_proxy.cpp | 30 | ||||
| -rw-r--r-- | src/v4l2/v4l2_camera_proxy.h | 1 |
2 files changed, 31 insertions, 0 deletions
diff --git a/src/v4l2/v4l2_camera_proxy.cpp b/src/v4l2/v4l2_camera_proxy.cpp index c1375777..4d529bc2 100644 --- a/src/v4l2/v4l2_camera_proxy.cpp +++ b/src/v4l2/v4l2_camera_proxy.cpp @@ -624,6 +624,32 @@ int V4L2CameraProxy::vidioc_dqbuf(V4L2CameraFile *file, struct v4l2_buffer *arg, return 0; } +int V4L2CameraProxy::vidioc_expbuf(V4L2CameraFile *file, struct v4l2_exportbuffer *arg) +{ + LOG(V4L2Compat, Debug) << "Servicing vidioc_expbuf fd = " << file->efd(); + + if (!hasOwnership(file)) + return -EBUSY; + + /* \todo Verify that the memory type is MMAP when adding DMABUF support */ + if (!validateBufferType(arg->type)) + return -EINVAL; + + if (arg->index >= bufferCount_) + return -EINVAL; + + if (arg->flags & ~(O_CLOEXEC | O_ACCMODE)) + return -EINVAL; + + memset(arg->reserved, 0, sizeof(arg->reserved)); + + /* \todo honor the O_ACCMODE flags passed to this function */ + arg->fd = fcntl(vcam_->getBufferFd(arg->index), + arg->flags & O_CLOEXEC ? F_DUPFD_CLOEXEC : F_DUPFD, 0); + + return 0; +} + int V4L2CameraProxy::vidioc_streamon(V4L2CameraFile *file, int *arg) { LOG(V4L2Compat, Debug) << "Servicing vidioc_streamon fd = " << file->efd(); @@ -685,6 +711,7 @@ const std::set<unsigned long> V4L2CameraProxy::supportedIoctls_ = { VIDIOC_QUERYBUF, VIDIOC_QBUF, VIDIOC_DQBUF, + VIDIOC_EXPBUF, VIDIOC_STREAMON, VIDIOC_STREAMOFF, }; @@ -755,6 +782,9 @@ int V4L2CameraProxy::ioctl(V4L2CameraFile *file, unsigned long request, void *ar case VIDIOC_DQBUF: ret = vidioc_dqbuf(file, static_cast<struct v4l2_buffer *>(arg), &proxyMutex_); break; + case VIDIOC_EXPBUF: + ret = vidioc_expbuf(file, static_cast<struct v4l2_exportbuffer *>(arg)); + break; case VIDIOC_STREAMON: ret = vidioc_streamon(file, static_cast<int *>(arg)); break; diff --git a/src/v4l2/v4l2_camera_proxy.h b/src/v4l2/v4l2_camera_proxy.h index fa0a49e0..14e027c3 100644 --- a/src/v4l2/v4l2_camera_proxy.h +++ b/src/v4l2/v4l2_camera_proxy.h @@ -60,6 +60,7 @@ private: int vidioc_qbuf(V4L2CameraFile *file, struct v4l2_buffer *arg); int vidioc_dqbuf(V4L2CameraFile *file, struct v4l2_buffer *arg, libcamera::Mutex *lock) LIBCAMERA_TSA_REQUIRES(*lock); + int vidioc_expbuf(V4L2CameraFile *file, struct v4l2_exportbuffer *arg); int vidioc_streamon(V4L2CameraFile *file, int *arg); int vidioc_streamoff(V4L2CameraFile *file, int *arg); |