diff options
| author | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2019-11-23 03:17:47 +0300 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2019-11-23 03:21:52 +0300 |
| commit | 71c296f6d5b33faf9867d04c6c5d75c7e56b886b (patch) | |
| tree | f64bdc82af79cd3a826770b9e5e0f43f606b3708 | |
| parent | fc1156f373e3927e0dcf06678906c367588bfdd6 (diff) | |
| download | linux-71c296f6d5b33faf9867d04c6c5d75c7e56b886b.tar.xz | |
Input: synaptics-rmi4 - fix various V4L2 compliance problems in F54
The v4l2-compliance utility reported several V4L2 API compliance
issues:
- the sequence counter wasn't filled in
- the sequence counter wasn't reset to 0 at the start of streaming
- the returned field value wasn't set to V4L2_FIELD_NONE
- the timestamp wasn't set
- the payload size was undefined if an error was returned
- min_buffers_needed doesn't need to be initialized
Fix these issues.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de
Link: https://lore.kernel.org/r/20191119105118.54285-3-hverkuil-cisco@xs4all.nl
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| -rw-r--r-- | drivers/input/rmi4/rmi_f54.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/input/rmi4/rmi_f54.c b/drivers/input/rmi4/rmi_f54.c index 514f5568b74d..5a3bf07e98f4 100644 --- a/drivers/input/rmi4/rmi_f54.c +++ b/drivers/input/rmi4/rmi_f54.c @@ -110,6 +110,7 @@ struct f54_data { struct video_device vdev; struct vb2_queue queue; struct mutex lock; + u32 sequence; int input; enum rmi_f54_report_type inputs[F54_MAX_REPORT_TYPE]; }; @@ -284,6 +285,7 @@ static int rmi_f54_queue_setup(struct vb2_queue *q, unsigned int *nbuffers, static void rmi_f54_buffer_queue(struct vb2_buffer *vb) { + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); struct f54_data *f54 = vb2_get_drv_priv(vb->vb2_queue); u16 *ptr; enum vb2_buffer_state state; @@ -292,6 +294,7 @@ static void rmi_f54_buffer_queue(struct vb2_buffer *vb) mutex_lock(&f54->status_mutex); + vb2_set_plane_payload(vb, 0, 0); reptype = rmi_f54_get_reptype(f54, f54->input); if (reptype == F54_REPORT_NONE) { state = VB2_BUF_STATE_ERROR; @@ -338,14 +341,25 @@ static void rmi_f54_buffer_queue(struct vb2_buffer *vb) data_done: mutex_unlock(&f54->data_mutex); done: + vb->timestamp = ktime_get_ns(); + vbuf->field = V4L2_FIELD_NONE; + vbuf->sequence = f54->sequence++; vb2_buffer_done(vb, state); mutex_unlock(&f54->status_mutex); } +static void rmi_f54_stop_streaming(struct vb2_queue *q) +{ + struct f54_data *f54 = vb2_get_drv_priv(q); + + f54->sequence = 0; +} + /* V4L2 structures */ static const struct vb2_ops rmi_f54_queue_ops = { .queue_setup = rmi_f54_queue_setup, .buf_queue = rmi_f54_buffer_queue, + .stop_streaming = rmi_f54_stop_streaming, .wait_prepare = vb2_ops_wait_prepare, .wait_finish = vb2_ops_wait_finish, }; @@ -357,7 +371,6 @@ static const struct vb2_queue rmi_f54_queue = { .ops = &rmi_f54_queue_ops, .mem_ops = &vb2_vmalloc_memops, .timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC, - .min_buffers_needed = 1, }; static int rmi_f54_vidioc_querycap(struct file *file, void *priv, |