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authorHans Verkuil <hans.verkuil@cisco.com>2018-05-12 10:44:01 -0400
committerMauro Carvalho Chehab <mchehab+samsung@kernel.org>2018-05-28 16:02:45 -0400
commitdf95e82f6b0db20615cf249aec653bcd79ea2b59 (patch)
treecd1e408c77c03f0da73458ffc72f3841c89d8d5e /drivers
parent0d5615d3479fd165a4aca7f2dc3c418ffed3eb20 (diff)
media: gspca: fix g/s_parm handling
Fix v4l2-compliance error: s_parm never set V4L2_CAP_TIMEPERFRAME. Also various g/s_parm-related cleanups. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/media/usb/gspca/gspca.c29
-rw-r--r--drivers/media/usb/gspca/ov534.c1
-rw-r--r--drivers/media/usb/gspca/topro.c1
3 files changed, 16 insertions, 15 deletions
diff --git a/drivers/media/usb/gspca/gspca.c b/drivers/media/usb/gspca/gspca.c
index ff229d3aae0f..a72799666417 100644
--- a/drivers/media/usb/gspca/gspca.c
+++ b/drivers/media/usb/gspca/gspca.c
@@ -1256,14 +1256,15 @@ static int vidioc_g_parm(struct file *filp, void *priv,
{
struct gspca_dev *gspca_dev = video_drvdata(filp);
- parm->parm.capture.readbuffers = 2;
+ parm->parm.capture.readbuffers = gspca_dev->queue.min_buffers_needed;
- if (gspca_dev->sd_desc->get_streamparm) {
- gspca_dev->usb_err = 0;
- gspca_dev->sd_desc->get_streamparm(gspca_dev, parm);
- return gspca_dev->usb_err;
- }
- return 0;
+ if (!gspca_dev->sd_desc->get_streamparm)
+ return 0;
+
+ parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME;
+ gspca_dev->usb_err = 0;
+ gspca_dev->sd_desc->get_streamparm(gspca_dev, parm);
+ return gspca_dev->usb_err;
}
static int vidioc_s_parm(struct file *filp, void *priv,
@@ -1271,15 +1272,17 @@ static int vidioc_s_parm(struct file *filp, void *priv,
{
struct gspca_dev *gspca_dev = video_drvdata(filp);
- parm->parm.capture.readbuffers = 2;
+ parm->parm.capture.readbuffers = gspca_dev->queue.min_buffers_needed;
- if (gspca_dev->sd_desc->set_streamparm) {
- gspca_dev->usb_err = 0;
- gspca_dev->sd_desc->set_streamparm(gspca_dev, parm);
- return gspca_dev->usb_err;
+ if (!gspca_dev->sd_desc->set_streamparm) {
+ parm->parm.capture.capability = 0;
+ return 0;
}
- return 0;
+ parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME;
+ gspca_dev->usb_err = 0;
+ gspca_dev->sd_desc->set_streamparm(gspca_dev, parm);
+ return gspca_dev->usb_err;
}
static int gspca_queue_setup(struct vb2_queue *vq,
diff --git a/drivers/media/usb/gspca/ov534.c b/drivers/media/usb/gspca/ov534.c
index f293921a1f2b..d06dc0755b9a 100644
--- a/drivers/media/usb/gspca/ov534.c
+++ b/drivers/media/usb/gspca/ov534.c
@@ -1476,7 +1476,6 @@ static void sd_get_streamparm(struct gspca_dev *gspca_dev,
struct v4l2_fract *tpf = &cp->timeperframe;
struct sd *sd = (struct sd *) gspca_dev;
- cp->capability |= V4L2_CAP_TIMEPERFRAME;
tpf->numerator = 1;
tpf->denominator = sd->frame_rate;
}
diff --git a/drivers/media/usb/gspca/topro.c b/drivers/media/usb/gspca/topro.c
index 82e2be14cad8..6f3ec0366a2f 100644
--- a/drivers/media/usb/gspca/topro.c
+++ b/drivers/media/usb/gspca/topro.c
@@ -4780,7 +4780,6 @@ static void sd_get_streamparm(struct gspca_dev *gspca_dev,
struct v4l2_fract *tpf = &cp->timeperframe;
int fr, i;
- cp->capability |= V4L2_CAP_TIMEPERFRAME;
tpf->numerator = 1;
i = get_fr_idx(gspca_dev);
if (i & 0x80) {