diff options
| author | Guoniu.Zhou <guoniu.zhou@nxp.com> | 2017-10-31 09:57:25 +0800 |
|---|---|---|
| committer | Jason Liu <jason.hui.liu@nxp.com> | 2019-02-12 10:29:00 +0800 |
| commit | 24fde27a44375e2de9a9bd8f71cc9891704da5b7 (patch) | |
| tree | 43f7767ea520b15be8ede22ec9abe2ad98a63c1f /drivers/media/platform/imx8/mxc-isi-cap.c | |
| parent | 644e1c75c5397b31b0a6aced0c90b2398496f8f9 (diff) | |
MLK-16692-1: csi: Identify which camera really connect to interface
There maybe 0-4 cameras can connected to interface at
the same time. Add this ioctl to identify which camera
really connect to the interface.
Reviewed-by: Robby Cai <robby.cai@nxp.com>
Signed-off-by: Guoniu.Zhou <guoniu.zhou@nxp.com>
(cherry picked from commit 785fbbd10c8a484b7f70488234c3a03e9aee9992)
Diffstat (limited to 'drivers/media/platform/imx8/mxc-isi-cap.c')
| -rw-r--r-- | drivers/media/platform/imx8/mxc-isi-cap.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/media/platform/imx8/mxc-isi-cap.c b/drivers/media/platform/imx8/mxc-isi-cap.c index 4d21f9febd26..2dec8bbcc44e 100644 --- a/drivers/media/platform/imx8/mxc-isi-cap.c +++ b/drivers/media/platform/imx8/mxc-isi-cap.c @@ -31,6 +31,7 @@ #include "mxc-isi-core.h" #include "mxc-isi-hw.h" #include "mxc-media-dev.h" +#include "max9286.h" struct mxc_isi_fmt mxc_isi_out_formats[] = { { @@ -903,6 +904,46 @@ static int mxc_isi_cap_s_selection(struct file *file, void *fh, return 0; } +static struct v4l2_subdev *mxc_isi_get_subdev_by_name(struct v4l2_device *v4l2, + const char *name) +{ + struct v4l2_subdev *sd; + bool found = false; + + list_for_each_entry(sd, &v4l2->subdevs, list) { + if (strstr(sd->name, name) != NULL) { + found = true; + break; + } + } + + return (found) ? sd : NULL; +} + +static int mxc_isi_cap_g_chip_ident(struct file *file, void *fb, + struct v4l2_dbg_chip_ident *chip) +{ + struct mxc_isi_dev *mxc_isi = video_drvdata(file); + struct v4l2_device *v4l2_dev = mxc_isi->isi_cap.sd.v4l2_dev; + struct video_device *vdev = video_devdata(file); + struct sensor_data *max9286; + struct v4l2_subdev *sd; + + sd = mxc_isi_get_subdev_by_name(v4l2_dev, "max9286_mipi"); + if (sd == NULL) { + v4l2_err(&mxc_isi->isi_cap.sd, "Can't find sub device\n"); + return -ENODEV; + } + + max9286 = container_of(sd, struct sensor_data, subdev); + if (max9286->sensor_is_there & (0x1 << vdev->num)) + sprintf(chip->match.name, "max9286_mipi%d\n", vdev->num); + else + return -ENODEV; + + return 0; +} + static const struct v4l2_ioctl_ops mxc_isi_capture_ioctl_ops = { .vidioc_querycap = mxc_isi_cap_querycap, @@ -924,6 +965,7 @@ static const struct v4l2_ioctl_ops mxc_isi_capture_ioctl_ops = { .vidioc_g_selection = mxc_isi_cap_g_selection, .vidioc_s_selection = mxc_isi_cap_s_selection, + .vidioc_g_chip_ident = mxc_isi_cap_g_chip_ident, }; /* Capture subdev media entity operations */ |