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bcwc_pcie: allow to set framerate

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This commit is contained in:
Sven Schnelle
2015-11-23 23:31:55 +01:00
parent 1f22dd2da2
commit c38439aeb9
4 changed files with 48 additions and 7 deletions
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1
bcwc_drv.c
View File

@@ -424,6 +424,7 @@ static int bcwc_pci_probe(struct pci_dev *pdev,
if (ret)
goto fail_work;
dev_priv->frametime = 40; /* 25 fps */
ret = bcwc_v4l2_register(dev_priv);
if (ret)
goto fail_work;

1
bcwc_drv.h
View File

@@ -131,6 +131,7 @@ struct bcwc_private {
struct vb2_alloc_ctx *alloc_ctx;
struct h2t_buf_ctx h2t_bufs[BCWC_BUFFERS];
int frametime;
};
#endif

4
bcwc_isp.c
View File

@@ -1016,10 +1016,10 @@ int bcwc_start_channel(struct bcwc_private *dev_priv, int channel)
ret = bcwc_isp_cmd_channel_face_detection_start(dev_priv, 0);
if (ret)
return ret;
ret = bcwc_isp_cmd_channel_frame_rate_max(dev_priv, 0, 7672);
ret = bcwc_isp_cmd_channel_frame_rate_max(dev_priv, 0, dev_priv->frametime * 256);
if (ret)
return ret;
ret = bcwc_isp_cmd_channel_frame_rate_min(dev_priv, 0, 3072);
ret = bcwc_isp_cmd_channel_frame_rate_min(dev_priv, 0, dev_priv->frametime * 256);
if (ret)
return ret;
ret = bcwc_isp_cmd_channel_temporal_filter_start(dev_priv, 0);

49
bcwc_v4l2.c
View File

@@ -374,7 +374,7 @@ static int bcwc_v4l2_ioctl_querycap(struct file *filp, void *priv,
strcpy(cap->driver, "bcwc");
strcpy(cap->card, "Apple Facetime HD");
cap->device_caps = V4L2_CAP_VIDEO_CAPTURE |
V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
V4L2_CAP_READWRITE | V4L2_CAP_STREAMING | V4L2_CAP_TIMEPERFRAME;
cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
return 0;
}
@@ -476,15 +476,42 @@ static int bcwc_v4l2_ioctl_s_fmt_vid_cap(struct file *filp, void *priv,
static int bcwc_v4l2_ioctl_g_parm(struct file *filp, void *priv,
struct v4l2_streamparm *parm)
{
pr_debug("%s\n", __FUNCTION__);
return -ENODEV;
struct bcwc_private *priv_dev = video_drvdata(filp);
struct v4l2_fract timeperframe = {
.numerator = priv_dev->frametime,
.denominator = 1000,
};
if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
parm->parm.capture.readbuffers = 2;
parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME;
parm->parm.capture.timeperframe = timeperframe;
return 0;
}
static int bcwc_v4l2_ioctl_s_parm(struct file *filp, void *priv,
struct v4l2_streamparm *parm)
{
pr_debug("%s\n", __FUNCTION__);
return -ENODEV;
struct bcwc_private *dev_priv = video_drvdata(filp);
struct v4l2_fract *timeperframe;
if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
timeperframe = &parm->parm.capture.timeperframe;
if(timeperframe->denominator == 0) {
timeperframe->numerator = 20;
timeperframe->denominator = 1000;
}
dev_priv->frametime = clamp_t(unsigned int, timeperframe->numerator * 1000 /
timeperframe->denominator, 20, 500);
return bcwc_v4l2_ioctl_g_parm(filp, priv, parm);
}
static int bcwc_v4l2_ioctl_enum_framesizes(struct file *filp, void *priv,
@@ -504,6 +531,18 @@ static int bcwc_v4l2_ioctl_enum_frameintervals(struct file *filp, void *priv,
struct v4l2_frmivalenum *interval)
{
pr_debug("%s\n", __FUNCTION__);
if (interval->pixel_format != V4L2_PIX_FMT_YUYV &&
interval->pixel_format != V4L2_PIX_FMT_YVYU &&
interval->pixel_format != V4L2_PIX_FMT_NV16)
return -EINVAL;
interval->type = V4L2_FRMIVAL_TYPE_STEPWISE;
interval->stepwise.min.numerator = 33;
interval->stepwise.min.denominator = 1000;
interval->stepwise.max.numerator = 500;
interval->stepwise.max.denominator = 1000;
return -ENODEV;
}