@@ -71,6 +71,11 @@ is unknown to the kernel.
of 'stream' fields (referring to the stream number) with various
ioctls. If this is not set (which is the default), the 'stream' fields
will be forced to 0 by the kernel.
+ * - ``V4L2_SUBDEV_CLIENT_CAP_WHICH_INTERVAL``
+ - The client is aware of the :c:type:`v4l2_subdev_frame_interval`
+ ``which`` field. If this is not set (which is the default), the
+ ``which`` field is forced to ``V4L2_SUBDEV_FORMAT_ACTIVE`` by the
+ kernel.
Return Value
============
@@ -58,8 +58,9 @@ struct
contains the current frame interval as would be returned by a
``VIDIOC_SUBDEV_G_FRAME_INTERVAL`` call.
-Calling ``VIDIOC_SUBDEV_S_FRAME_INTERVAL`` on a subdev device node that has been
-registered in read-only mode is not allowed. An error is returned and the errno
+If the subdev device node has been registered in read-only mode, calls to
+``VIDIOC_SUBDEV_S_FRAME_INTERVAL`` are only valid if the ``which`` field is set
+to ``V4L2_SUBDEV_FORMAT_TRY``, otherwise an error is returned and the errno
variable is set to ``-EPERM``.
Drivers must not return an error solely because the requested interval
@@ -93,7 +94,11 @@ the same sub-device is not defined.
- ``stream``
- Stream identifier.
* - __u32
- - ``reserved``\ [8]
+ - ``which``
+ - Active or try frame interval, from enum
+ :ref:`v4l2_subdev_format_whence <v4l2-subdev-format-whence>`.
+ * - __u32
+ - ``reserved``\ [7]
- Reserved for future extensions. Applications and drivers must set
the array to zero.
@@ -114,9 +119,9 @@ EBUSY
EINVAL
The struct
:c:type:`v4l2_subdev_frame_interval`
- ``pad`` references a non-existing pad, or the pad doesn't support
- frame intervals.
+ ``pad`` references a non-existing pad, the ``which`` field references a
+ non-existing frame interval, or the pad doesn't support frame intervals.
EPERM
The ``VIDIOC_SUBDEV_S_FRAME_INTERVAL`` ioctl has been called on a read-only
- subdevice.
+ subdevice and the ``which`` field is set to ``V4L2_SUBDEV_FORMAT_ACTIVE``.
@@ -469,6 +469,9 @@ static int adv7180_get_frame_interval(struct v4l2_subdev *sd,
{
struct adv7180_state *state = to_state(sd);
+ if (fi->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
if (state->curr_norm & V4L2_STD_525_60) {
fi->interval.numerator = 1001;
fi->interval.denominator = 30000;
@@ -1052,6 +1052,9 @@ static int et8ek8_get_frame_interval(struct v4l2_subdev *subdev,
{
struct et8ek8_sensor *sensor = to_et8ek8_sensor(subdev);
+ if (fi->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
memset(fi, 0, sizeof(*fi));
fi->interval = sensor->current_reglist->mode.timeperframe;
@@ -1065,6 +1068,9 @@ static int et8ek8_set_frame_interval(struct v4l2_subdev *subdev,
struct et8ek8_sensor *sensor = to_et8ek8_sensor(subdev);
struct et8ek8_reglist *reglist;
+ if (fi->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
reglist = et8ek8_reglist_find_mode_ival(&meta_reglist,
sensor->current_reglist,
&fi->interval);
@@ -799,6 +799,9 @@ static int imx214_get_frame_interval(struct v4l2_subdev *subdev,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_frame_interval *fival)
{
+ if (fival->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
fival->interval.numerator = 1;
fival->interval.denominator = IMX214_FPS;
@@ -1333,6 +1333,9 @@ static int imx274_get_frame_interval(struct v4l2_subdev *sd,
{
struct stimx274 *imx274 = to_imx274(sd);
+ if (fi->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
fi->interval = imx274->frame_interval;
dev_dbg(&imx274->client->dev, "%s frame rate = %d / %d\n",
__func__, imx274->frame_interval.numerator,
@@ -1350,6 +1353,9 @@ static int imx274_set_frame_interval(struct v4l2_subdev *sd,
int min, max, def;
int ret;
+ if (fi->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
ret = pm_runtime_resume_and_get(&imx274->client->dev);
if (ret < 0)
return ret;
@@ -874,6 +874,9 @@ static int max9286_get_frame_interval(struct v4l2_subdev *sd,
{
struct max9286_priv *priv = sd_to_max9286(sd);
+ if (interval->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
if (interval->pad != MAX9286_SRC_PAD)
return -EINVAL;
@@ -888,6 +891,9 @@ static int max9286_set_frame_interval(struct v4l2_subdev *sd,
{
struct max9286_priv *priv = sd_to_max9286(sd);
+ if (interval->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
if (interval->pad != MAX9286_SRC_PAD)
return -EINVAL;
@@ -1051,6 +1051,9 @@ static int mt9m111_get_frame_interval(struct v4l2_subdev *sd,
{
struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
+ if (fi->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
fi->interval = mt9m111->frame_interval;
return 0;
@@ -1068,6 +1071,9 @@ static int mt9m111_set_frame_interval(struct v4l2_subdev *sd,
if (mt9m111->is_streaming)
return -EBUSY;
+ if (fi->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
if (fi->pad != 0)
return -EINVAL;
@@ -1588,6 +1588,9 @@ static int mt9m114_ifp_get_frame_interval(struct v4l2_subdev *sd,
struct v4l2_fract *ival = &interval->interval;
struct mt9m114 *sensor = ifp_to_mt9m114(sd);
+ if (interval->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
mutex_lock(sensor->ifp.hdl.lock);
ival->numerator = 1;
@@ -1606,6 +1609,9 @@ static int mt9m114_ifp_set_frame_interval(struct v4l2_subdev *sd,
struct mt9m114 *sensor = ifp_to_mt9m114(sd);
int ret = 0;
+ if (interval->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
mutex_lock(sensor->ifp.hdl.lock);
if (ival->numerator != 0 && ival->denominator != 0)
@@ -366,6 +366,9 @@ static int mt9v011_get_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_frame_interval *ival)
{
+ if (ival->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
calc_fps(sd,
&ival->interval.numerator,
&ival->interval.denominator);
@@ -380,6 +383,9 @@ static int mt9v011_set_frame_interval(struct v4l2_subdev *sd,
struct v4l2_fract *tpf = &ival->interval;
u16 speed;
+ if (ival->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
speed = calc_speed(sd, tpf->numerator, tpf->denominator);
mt9v011_write(sd, R0A_MT9V011_CLK_SPEED, speed);
@@ -730,6 +730,9 @@ static int mt9v111_set_frame_interval(struct v4l2_subdev *sd,
tpf->denominator;
unsigned int max_fps;
+ if (ival->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
if (!tpf->numerator)
tpf->numerator = 1;
@@ -779,6 +782,9 @@ static int mt9v111_get_frame_interval(struct v4l2_subdev *sd,
struct mt9v111_dev *mt9v111 = sd_to_mt9v111(sd);
struct v4l2_fract *tpf = &ival->interval;
+ if (ival->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
mutex_lock(&mt9v111->stream_mutex);
tpf->numerator = 1;
@@ -558,6 +558,9 @@ static int ov2680_get_frame_interval(struct v4l2_subdev *sd,
{
struct ov2680_dev *sensor = to_ov2680_dev(sd);
+ if (fi->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
mutex_lock(&sensor->lock);
fi->interval = sensor->mode.frame_interval;
mutex_unlock(&sensor->lock);
@@ -3611,6 +3611,9 @@ static int ov5640_get_frame_interval(struct v4l2_subdev *sd,
{
struct ov5640_dev *sensor = to_ov5640_dev(sd);
+ if (fi->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
mutex_lock(&sensor->lock);
fi->interval = sensor->frame_interval;
mutex_unlock(&sensor->lock);
@@ -3626,6 +3629,9 @@ static int ov5640_set_frame_interval(struct v4l2_subdev *sd,
const struct ov5640_mode_info *mode;
int frame_rate, ret = 0;
+ if (fi->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
if (fi->pad != 0)
return -EINVAL;
@@ -2276,6 +2276,9 @@ static int ov5648_get_frame_interval(struct v4l2_subdev *subdev,
const struct ov5648_mode *mode;
int ret = 0;
+ if (interval->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
mutex_lock(&sensor->mutex);
mode = sensor->state.mode;
@@ -1013,6 +1013,9 @@ static int ov5693_get_frame_interval(struct v4l2_subdev *sd,
ov5693->ctrls.vblank->val);
unsigned int fps = DIV_ROUND_CLOSEST(OV5693_PIXEL_RATE, framesize);
+ if (interval->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
interval->interval.numerator = 1;
interval->interval.denominator = fps;
@@ -806,6 +806,9 @@ static int ov6650_get_frame_interval(struct v4l2_subdev *sd,
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct ov6650 *priv = to_ov6650(client);
+ if (ival->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
ival->interval = priv->tpf;
dev_dbg(&client->dev, "Frame interval: %u/%u s\n",
@@ -823,6 +826,9 @@ static int ov6650_set_frame_interval(struct v4l2_subdev *sd,
struct v4l2_fract *tpf = &ival->interval;
int div, ret;
+ if (ival->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
if (tpf->numerator == 0 || tpf->denominator == 0)
div = 1; /* Reset to full rate */
else
@@ -1391,6 +1391,9 @@ static int ov7251_get_frame_interval(struct v4l2_subdev *subdev,
{
struct ov7251 *ov7251 = to_ov7251(subdev);
+ if (fi->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
mutex_lock(&ov7251->lock);
fi->interval = ov7251->current_mode->timeperframe;
mutex_unlock(&ov7251->lock);
@@ -1406,6 +1409,9 @@ static int ov7251_set_frame_interval(struct v4l2_subdev *subdev,
const struct ov7251_mode_info *new_mode;
int ret = 0;
+ if (fi->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
mutex_lock(&ov7251->lock);
new_mode = ov7251_find_mode_by_ival(ov7251, &fi->interval);
@@ -1161,6 +1161,8 @@ static int ov7670_get_frame_interval(struct v4l2_subdev *sd,
{
struct ov7670_info *info = to_state(sd);
+ if (ival->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
info->devtype->get_framerate(sd, &ival->interval);
@@ -1174,6 +1176,8 @@ static int ov7670_set_frame_interval(struct v4l2_subdev *sd,
struct v4l2_fract *tpf = &ival->interval;
struct ov7670_info *info = to_state(sd);
+ if (ival->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
return info->devtype->set_framerate(sd, tpf);
}
@@ -724,6 +724,9 @@ static int ov772x_get_frame_interval(struct v4l2_subdev *sd,
struct ov772x_priv *priv = to_ov772x(sd);
struct v4l2_fract *tpf = &ival->interval;
+ if (ival->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
tpf->numerator = 1;
tpf->denominator = priv->fps;
@@ -739,6 +742,9 @@ static int ov772x_set_frame_interval(struct v4l2_subdev *sd,
unsigned int fps;
int ret = 0;
+ if (ival->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
mutex_lock(&priv->lock);
if (priv->streaming) {
@@ -2846,6 +2846,9 @@ static int ov8865_get_frame_interval(struct v4l2_subdev *subdev,
unsigned int framesize;
unsigned int fps;
+ if (interval->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
mutex_lock(&sensor->mutex);
mode = sensor->state.mode;
@@ -1107,6 +1107,9 @@ static int ov965x_get_frame_interval(struct v4l2_subdev *sd,
{
struct ov965x *ov965x = to_ov965x(sd);
+ if (fi->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
mutex_lock(&ov965x->lock);
fi->interval = ov965x->fiv->interval;
mutex_unlock(&ov965x->lock);
@@ -1156,6 +1159,9 @@ static int ov965x_set_frame_interval(struct v4l2_subdev *sd,
struct ov965x *ov965x = to_ov965x(sd);
int ret;
+ if (fi->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
v4l2_dbg(1, debug, sd, "Setting %d/%d frame interval\n",
fi->interval.numerator, fi->interval.denominator);
@@ -875,6 +875,9 @@ static int s5c73m3_oif_get_frame_interval(struct v4l2_subdev *sd,
{
struct s5c73m3 *state = oif_sd_to_s5c73m3(sd);
+ if (fi->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
if (fi->pad != OIF_SOURCE_PAD)
return -EINVAL;
@@ -926,6 +929,9 @@ static int s5c73m3_oif_set_frame_interval(struct v4l2_subdev *sd,
struct s5c73m3 *state = oif_sd_to_s5c73m3(sd);
int ret;
+ if (fi->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
if (fi->pad != OIF_SOURCE_PAD)
return -EINVAL;
@@ -1124,6 +1124,9 @@ static int s5k5baf_get_frame_interval(struct v4l2_subdev *sd,
{
struct s5k5baf *state = to_s5k5baf(sd);
+ if (fi->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
mutex_lock(&state->lock);
fi->interval.numerator = state->fiv;
fi->interval.denominator = 10000;
@@ -1162,6 +1165,9 @@ static int s5k5baf_set_frame_interval(struct v4l2_subdev *sd,
{
struct s5k5baf *state = to_s5k5baf(sd);
+ if (fi->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
mutex_lock(&state->lock);
__s5k5baf_set_frame_interval(state, fi);
mutex_unlock(&state->lock);
@@ -746,6 +746,8 @@ tvp514x_get_frame_interval(struct v4l2_subdev *sd,
struct tvp514x_decoder *decoder = to_decoder(sd);
enum tvp514x_std current_std;
+ if (ival->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
/* get the current standard */
current_std = decoder->current_std;
@@ -765,6 +767,8 @@ tvp514x_set_frame_interval(struct v4l2_subdev *sd,
struct v4l2_fract *timeperframe;
enum tvp514x_std current_std;
+ if (ival->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
timeperframe = &ival->interval;
@@ -291,9 +291,8 @@ static inline int check_frame_interval(struct v4l2_subdev *sd,
if (!fi)
return -EINVAL;
- return check_pad(sd, fi->pad) ? :
- check_state(sd, state, V4L2_SUBDEV_FORMAT_ACTIVE, fi->pad,
- fi->stream);
+ return check_which(fi->which) ? : check_pad(sd, fi->pad) ? :
+ check_state(sd, state, fi->which, fi->pad, fi->stream);
}
static int call_get_frame_interval(struct v4l2_subdev *sd,
@@ -538,7 +537,7 @@ subdev_ioctl_get_state(struct v4l2_subdev *sd, struct v4l2_subdev_fh *subdev_fh,
break;
case VIDIOC_SUBDEV_G_FRAME_INTERVAL:
case VIDIOC_SUBDEV_S_FRAME_INTERVAL:
- which = V4L2_SUBDEV_FORMAT_ACTIVE;
+ which = ((struct v4l2_subdev_frame_interval *)arg)->which;
break;
case VIDIOC_SUBDEV_G_ROUTING:
case VIDIOC_SUBDEV_S_ROUTING:
@@ -789,6 +788,10 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg,
if (!client_supports_streams)
fi->stream = 0;
+ if (!(subdev_fh->client_caps &
+ V4L2_SUBDEV_CLIENT_CAP_WHICH_INTERVAL))
+ fi->which = V4L2_SUBDEV_FORMAT_ACTIVE;
+
memset(fi->reserved, 0, sizeof(fi->reserved));
return v4l2_subdev_call(sd, pad, get_frame_interval, state, fi);
}
@@ -796,12 +799,16 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg,
case VIDIOC_SUBDEV_S_FRAME_INTERVAL: {
struct v4l2_subdev_frame_interval *fi = arg;
- if (ro_subdev)
- return -EPERM;
-
if (!client_supports_streams)
fi->stream = 0;
+ if (!(subdev_fh->client_caps &
+ V4L2_SUBDEV_CLIENT_CAP_WHICH_INTERVAL))
+ fi->which = V4L2_SUBDEV_FORMAT_ACTIVE;
+
+ if (fi->which != V4L2_SUBDEV_FORMAT_TRY && ro_subdev)
+ return -EPERM;
+
memset(fi->reserved, 0, sizeof(fi->reserved));
return v4l2_subdev_call(sd, pad, set_frame_interval, state, fi);
}
@@ -500,6 +500,9 @@ static int gc0310_get_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_frame_interval *interval)
{
+ if (interval->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
interval->interval.numerator = 1;
interval->interval.denominator = GC0310_FPS;
@@ -704,6 +704,9 @@ static int gc2235_get_frame_interval(struct v4l2_subdev *sd,
{
struct gc2235_device *dev = to_gc2235_sensor(sd);
+ if (interval->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
interval->interval.numerator = 1;
interval->interval.denominator = dev->res->fps;
@@ -1394,6 +1394,9 @@ static int mt9m114_get_frame_interval(struct v4l2_subdev *sd,
{
struct mt9m114_device *dev = to_mt9m114_sensor(sd);
+ if (interval->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
interval->interval.numerator = 1;
interval->interval.denominator = mt9m114_res[dev->res].fps;
@@ -851,6 +851,9 @@ static int ov2722_get_frame_interval(struct v4l2_subdev *sd,
{
struct ov2722_device *dev = to_ov2722_sensor(sd);
+ if (interval->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
interval->interval.numerator = 1;
interval->interval.denominator = dev->res->fps;
@@ -401,6 +401,9 @@ static int prp_get_frame_interval(struct v4l2_subdev *sd,
{
struct prp_priv *priv = sd_to_priv(sd);
+ if (fi->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
if (fi->pad >= PRP_NUM_PADS)
return -EINVAL;
@@ -417,6 +420,9 @@ static int prp_set_frame_interval(struct v4l2_subdev *sd,
{
struct prp_priv *priv = sd_to_priv(sd);
+ if (fi->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
if (fi->pad >= PRP_NUM_PADS)
return -EINVAL;
@@ -1211,6 +1211,9 @@ static int prp_get_frame_interval(struct v4l2_subdev *sd,
{
struct prp_priv *priv = sd_to_priv(sd);
+ if (fi->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
if (fi->pad >= PRPENCVF_NUM_PADS)
return -EINVAL;
@@ -1227,6 +1230,9 @@ static int prp_set_frame_interval(struct v4l2_subdev *sd,
{
struct prp_priv *priv = sd_to_priv(sd);
+ if (fi->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
if (fi->pad >= PRPENCVF_NUM_PADS)
return -EINVAL;
@@ -908,6 +908,9 @@ static int csi_get_frame_interval(struct v4l2_subdev *sd,
{
struct csi_priv *priv = v4l2_get_subdevdata(sd);
+ if (fi->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
if (fi->pad >= CSI_NUM_PADS)
return -EINVAL;
@@ -928,6 +931,9 @@ static int csi_set_frame_interval(struct v4l2_subdev *sd,
struct v4l2_fract *input_fi;
int ret = 0;
+ if (fi->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
mutex_lock(&priv->lock);
input_fi = &priv->frame_interval[CSI_SINK_PAD];
@@ -786,6 +786,9 @@ static int vdic_get_frame_interval(struct v4l2_subdev *sd,
{
struct vdic_priv *priv = v4l2_get_subdevdata(sd);
+ if (fi->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
if (fi->pad >= VDIC_NUM_PADS)
return -EINVAL;
@@ -806,6 +809,9 @@ static int vdic_set_frame_interval(struct v4l2_subdev *sd,
struct v4l2_fract *input_fi, *output_fi;
int ret = 0;
+ if (fi->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
mutex_lock(&priv->lock);
input_fi = &priv->frame_interval[priv->active_input_pad];
@@ -231,6 +231,9 @@ static int tegra_csi_get_frame_interval(struct v4l2_subdev *subdev,
if (!IS_ENABLED(CONFIG_VIDEO_TEGRA_TPG))
return -ENOIOCTLCMD;
+ if (vfi->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return -EINVAL;
+
vfi->interval.numerator = 1;
vfi->interval.denominator = csi_chan->framerate;
@@ -116,13 +116,15 @@ struct v4l2_subdev_frame_size_enum {
* @pad: pad number, as reported by the media API
* @interval: frame interval in seconds
* @stream: stream number, defined in subdev routing
+ * @which: interval type (from enum v4l2_subdev_format_whence)
* @reserved: drivers and applications must zero this array
*/
struct v4l2_subdev_frame_interval {
__u32 pad;
struct v4l2_fract interval;
__u32 stream;
- __u32 reserved[8];
+ __u32 which;
+ __u32 reserved[7];
};
/**
@@ -133,7 +135,7 @@ struct v4l2_subdev_frame_interval {
* @width: frame width in pixels
* @height: frame height in pixels
* @interval: frame interval in seconds
- * @which: format type (from enum v4l2_subdev_format_whence)
+ * @which: interval type (from enum v4l2_subdev_format_whence)
* @stream: stream number, defined in subdev routing
* @reserved: drivers and applications must zero this array
*/
@@ -241,6 +243,13 @@ struct v4l2_subdev_routing {
*/
#define V4L2_SUBDEV_CLIENT_CAP_STREAMS (1U << 0)
+/*
+ * The client is aware of the struct v4l2_subdev_frame_interval which field. If
+ * this is not set (which is the default), the which field is forced to
+ * V4L2_SUBDEV_FORMAT_ACTIVE by the kernel.
+ */
+#define V4L2_SUBDEV_CLIENT_CAP_WHICH_INTERVAL (1U << 1)
+
/**
* struct v4l2_subdev_client_capability - Capabilities of the client accessing
* the subdev
Due to a historical mishap, the v4l2_subdev_frame_interval structure is the only part of the V4L2 subdev userspace API that doesn't contain a 'which' field. This prevents trying frame intervals using the subdev 'TRY' state mechanism. Add a 'which' field is simple as the structure has 8 reserved fields. This would however break userspace as the field is currently set to 0, corresponding to V4L2_SUBDEV_FORMAT_TRY, while the corresponding ioctls currently operate on the 'ACTIVE' state. We thus need to add a new subdev client cap, V4L2_SUBDEV_CLIENT_CAP_WHICH_INTERVAL, to indicate that userspace is aware of this new field. All drivers that implement the subdev .g_frame_interval() and .s_frame_interval() operations are updated to return -EINVAL when operating on the TRY state, preserving the current behaviour. While at it, fix a bad copy&paste in the documentation of the struct v4l2_subdev_frame_interval_enum 'which' field. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> --- .../media/v4l/vidioc-subdev-g-client-cap.rst | 5 +++++ .../v4l/vidioc-subdev-g-frame-interval.rst | 17 +++++++++------ drivers/media/i2c/adv7180.c | 3 +++ drivers/media/i2c/et8ek8/et8ek8_driver.c | 6 ++++++ drivers/media/i2c/imx214.c | 3 +++ drivers/media/i2c/imx274.c | 6 ++++++ drivers/media/i2c/max9286.c | 6 ++++++ drivers/media/i2c/mt9m111.c | 6 ++++++ drivers/media/i2c/mt9m114.c | 6 ++++++ drivers/media/i2c/mt9v011.c | 6 ++++++ drivers/media/i2c/mt9v111.c | 6 ++++++ drivers/media/i2c/ov2680.c | 3 +++ drivers/media/i2c/ov5640.c | 6 ++++++ drivers/media/i2c/ov5648.c | 3 +++ drivers/media/i2c/ov5693.c | 3 +++ drivers/media/i2c/ov6650.c | 6 ++++++ drivers/media/i2c/ov7251.c | 6 ++++++ drivers/media/i2c/ov7670.c | 4 ++++ drivers/media/i2c/ov772x.c | 6 ++++++ drivers/media/i2c/ov8865.c | 3 +++ drivers/media/i2c/ov9650.c | 6 ++++++ drivers/media/i2c/s5c73m3/s5c73m3-core.c | 6 ++++++ drivers/media/i2c/s5k5baf.c | 6 ++++++ drivers/media/i2c/tvp514x.c | 4 ++++ drivers/media/v4l2-core/v4l2-subdev.c | 21 ++++++++++++------- .../media/atomisp/i2c/atomisp-gc0310.c | 3 +++ .../media/atomisp/i2c/atomisp-gc2235.c | 3 +++ .../media/atomisp/i2c/atomisp-mt9m114.c | 3 +++ .../media/atomisp/i2c/atomisp-ov2722.c | 3 +++ drivers/staging/media/imx/imx-ic-prp.c | 6 ++++++ drivers/staging/media/imx/imx-ic-prpencvf.c | 6 ++++++ drivers/staging/media/imx/imx-media-csi.c | 6 ++++++ drivers/staging/media/imx/imx-media-vdic.c | 6 ++++++ drivers/staging/media/tegra-video/csi.c | 3 +++ include/uapi/linux/v4l2-subdev.h | 13 ++++++++++-- 35 files changed, 190 insertions(+), 15 deletions(-)