diff options
Diffstat (limited to 'drivers/media/platform/nxp/imx8-isi/imx8-isi-video.c')
| -rw-r--r-- | drivers/media/platform/nxp/imx8-isi/imx8-isi-video.c | 156 |
1 files changed, 56 insertions, 100 deletions
diff --git a/drivers/media/platform/nxp/imx8-isi/imx8-isi-video.c b/drivers/media/platform/nxp/imx8-isi/imx8-isi-video.c index 8654150728a8..13682bf6e9f8 100644 --- a/drivers/media/platform/nxp/imx8-isi/imx8-isi-video.c +++ b/drivers/media/platform/nxp/imx8-isi/imx8-isi-video.c @@ -937,6 +937,47 @@ static void mxc_isi_video_init_channel(struct mxc_isi_video *video) mxc_isi_channel_set_output_format(pipe, video->fmtinfo, &video->pix); } +static int mxc_isi_vb2_prepare_streaming(struct vb2_queue *q) +{ + struct mxc_isi_video *video = vb2_get_drv_priv(q); + struct media_device *mdev = &video->pipe->isi->media_dev; + struct media_pipeline *pipe; + int ret; + + /* Get a pipeline for the video node and start it. */ + scoped_guard(mutex, &mdev->graph_mutex) { + ret = mxc_isi_pipe_acquire(video->pipe, + &mxc_isi_video_frame_write_done); + if (ret) + return ret; + + pipe = media_entity_pipeline(&video->vdev.entity) + ? : &video->pipe->pipe; + + ret = __video_device_pipeline_start(&video->vdev, pipe); + if (ret) + goto err_release; + } + + /* Verify that the video format matches the output of the subdev. */ + ret = mxc_isi_video_validate_format(video); + if (ret) + goto err_stop; + + /* Allocate buffers for discard operation. */ + ret = mxc_isi_video_alloc_discard_buffers(video); + if (ret) + goto err_stop; + + return 0; + +err_stop: + video_device_pipeline_stop(&video->vdev); +err_release: + mxc_isi_pipe_release(video->pipe); + return ret; +} + static int mxc_isi_vb2_start_streaming(struct vb2_queue *q, unsigned int count) { struct mxc_isi_video *video = vb2_get_drv_priv(q); @@ -985,13 +1026,24 @@ static void mxc_isi_vb2_stop_streaming(struct vb2_queue *q) mxc_isi_video_return_buffers(video, VB2_BUF_STATE_ERROR); } +static void mxc_isi_vb2_unprepare_streaming(struct vb2_queue *q) +{ + struct mxc_isi_video *video = vb2_get_drv_priv(q); + + mxc_isi_video_free_discard_buffers(video); + video_device_pipeline_stop(&video->vdev); + mxc_isi_pipe_release(video->pipe); +} + static const struct vb2_ops mxc_isi_vb2_qops = { .queue_setup = mxc_isi_vb2_queue_setup, .buf_init = mxc_isi_vb2_buffer_init, .buf_prepare = mxc_isi_vb2_buffer_prepare, .buf_queue = mxc_isi_vb2_buffer_queue, + .prepare_streaming = mxc_isi_vb2_prepare_streaming, .start_streaming = mxc_isi_vb2_start_streaming, .stop_streaming = mxc_isi_vb2_stop_streaming, + .unprepare_streaming = mxc_isi_vb2_unprepare_streaming, }; /* ----------------------------------------------------------------------------- @@ -1145,97 +1197,6 @@ static int mxc_isi_video_s_fmt(struct file *file, void *priv, return 0; } -static int mxc_isi_video_streamon(struct file *file, void *priv, - enum v4l2_buf_type type) -{ - struct mxc_isi_video *video = video_drvdata(file); - struct media_device *mdev = &video->pipe->isi->media_dev; - struct media_pipeline *pipe; - int ret; - - if (vb2_queue_is_busy(&video->vb2_q, file)) - return -EBUSY; - - /* - * Get a pipeline for the video node and start it. This must be done - * here and not in the queue .start_streaming() handler, so that - * pipeline start errors can be reported from VIDIOC_STREAMON and not - * delayed until subsequent VIDIOC_QBUF calls. - */ - mutex_lock(&mdev->graph_mutex); - - ret = mxc_isi_pipe_acquire(video->pipe, &mxc_isi_video_frame_write_done); - if (ret) { - mutex_unlock(&mdev->graph_mutex); - return ret; - } - - pipe = media_entity_pipeline(&video->vdev.entity) ? : &video->pipe->pipe; - - ret = __video_device_pipeline_start(&video->vdev, pipe); - if (ret) { - mutex_unlock(&mdev->graph_mutex); - goto err_release; - } - - mutex_unlock(&mdev->graph_mutex); - - /* Verify that the video format matches the output of the subdev. */ - ret = mxc_isi_video_validate_format(video); - if (ret) - goto err_stop; - - /* Allocate buffers for discard operation. */ - ret = mxc_isi_video_alloc_discard_buffers(video); - if (ret) - goto err_stop; - - ret = vb2_streamon(&video->vb2_q, type); - if (ret) - goto err_free; - - video->is_streaming = true; - - return 0; - -err_free: - mxc_isi_video_free_discard_buffers(video); -err_stop: - video_device_pipeline_stop(&video->vdev); -err_release: - mxc_isi_pipe_release(video->pipe); - return ret; -} - -static void mxc_isi_video_cleanup_streaming(struct mxc_isi_video *video) -{ - lockdep_assert_held(&video->lock); - - if (!video->is_streaming) - return; - - mxc_isi_video_free_discard_buffers(video); - video_device_pipeline_stop(&video->vdev); - mxc_isi_pipe_release(video->pipe); - - video->is_streaming = false; -} - -static int mxc_isi_video_streamoff(struct file *file, void *priv, - enum v4l2_buf_type type) -{ - struct mxc_isi_video *video = video_drvdata(file); - int ret; - - ret = vb2_ioctl_streamoff(file, priv, type); - if (ret) - return ret; - - mxc_isi_video_cleanup_streaming(video); - - return 0; -} - static int mxc_isi_video_enum_framesizes(struct file *file, void *priv, struct v4l2_frmsizeenum *fsize) { @@ -1291,9 +1252,8 @@ static const struct v4l2_ioctl_ops mxc_isi_video_ioctl_ops = { .vidioc_expbuf = vb2_ioctl_expbuf, .vidioc_prepare_buf = vb2_ioctl_prepare_buf, .vidioc_create_bufs = vb2_ioctl_create_bufs, - - .vidioc_streamon = mxc_isi_video_streamon, - .vidioc_streamoff = mxc_isi_video_streamoff, + .vidioc_streamon = vb2_ioctl_streamon, + .vidioc_streamoff = vb2_ioctl_streamoff, .vidioc_enum_framesizes = mxc_isi_video_enum_framesizes, @@ -1332,10 +1292,6 @@ static int mxc_isi_video_release(struct file *file) if (ret) dev_err(video->pipe->isi->dev, "%s fail\n", __func__); - mutex_lock(&video->lock); - mxc_isi_video_cleanup_streaming(video); - mutex_unlock(&video->lock); - pm_runtime_put(video->pipe->isi->dev); return ret; } @@ -1357,7 +1313,7 @@ void mxc_isi_video_suspend(struct mxc_isi_pipe *pipe) { struct mxc_isi_video *video = &pipe->video; - if (!video->is_streaming) + if (!vb2_is_streaming(&video->vb2_q)) return; mxc_isi_pipe_disable(pipe); @@ -1388,7 +1344,7 @@ int mxc_isi_video_resume(struct mxc_isi_pipe *pipe) { struct mxc_isi_video *video = &pipe->video; - if (!video->is_streaming) + if (!vb2_is_streaming(&video->vb2_q)) return 0; mxc_isi_video_init_channel(video); |