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path: root/drivers/media/v4l2-core/v4l2-ioctl.c
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Diffstat (limited to 'drivers/media/v4l2-core/v4l2-ioctl.c')
-rw-r--r--drivers/media/v4l2-core/v4l2-ioctl.c182
1 files changed, 104 insertions, 78 deletions
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index 7336363984c1..09512ebc6497 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -876,52 +876,59 @@ static int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv)
return 1;
}
-static int check_fmt(const struct v4l2_ioctl_ops *ops, enum v4l2_buf_type type)
+static int check_fmt(struct file *file, enum v4l2_buf_type type)
{
+ struct video_device *vfd = video_devdata(file);
+ const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops;
+ bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
+ bool is_vbi = vfd->vfl_type == VFL_TYPE_VBI;
+ bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
+ bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
+
if (ops == NULL)
return -EINVAL;
switch (type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
- if (ops->vidioc_g_fmt_vid_cap ||
- ops->vidioc_g_fmt_vid_cap_mplane)
+ if (is_vid && is_rx &&
+ (ops->vidioc_g_fmt_vid_cap || ops->vidioc_g_fmt_vid_cap_mplane))
return 0;
break;
case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
- if (ops->vidioc_g_fmt_vid_cap_mplane)
+ if (is_vid && is_rx && ops->vidioc_g_fmt_vid_cap_mplane)
return 0;
break;
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
- if (ops->vidioc_g_fmt_vid_overlay)
+ if (is_vid && is_rx && ops->vidioc_g_fmt_vid_overlay)
return 0;
break;
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
- if (ops->vidioc_g_fmt_vid_out ||
- ops->vidioc_g_fmt_vid_out_mplane)
+ if (is_vid && is_tx &&
+ (ops->vidioc_g_fmt_vid_out || ops->vidioc_g_fmt_vid_out_mplane))
return 0;
break;
case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
- if (ops->vidioc_g_fmt_vid_out_mplane)
+ if (is_vid && is_tx && ops->vidioc_g_fmt_vid_out_mplane)
return 0;
break;
case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
- if (ops->vidioc_g_fmt_vid_out_overlay)
+ if (is_vid && is_tx && ops->vidioc_g_fmt_vid_out_overlay)
return 0;
break;
case V4L2_BUF_TYPE_VBI_CAPTURE:
- if (ops->vidioc_g_fmt_vbi_cap)
+ if (is_vbi && is_rx && ops->vidioc_g_fmt_vbi_cap)
return 0;
break;
case V4L2_BUF_TYPE_VBI_OUTPUT:
- if (ops->vidioc_g_fmt_vbi_out)
+ if (is_vbi && is_tx && ops->vidioc_g_fmt_vbi_out)
return 0;
break;
case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
- if (ops->vidioc_g_fmt_sliced_vbi_cap)
+ if (is_vbi && is_rx && ops->vidioc_g_fmt_sliced_vbi_cap)
return 0;
break;
case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
- if (ops->vidioc_g_fmt_sliced_vbi_out)
+ if (is_vbi && is_tx && ops->vidioc_g_fmt_sliced_vbi_out)
return 0;
break;
default:
@@ -1024,26 +1031,29 @@ static int v4l_enum_fmt(const struct v4l2_ioctl_ops *ops,
struct file *file, void *fh, void *arg)
{
struct v4l2_fmtdesc *p = arg;
+ struct video_device *vfd = video_devdata(file);
+ bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
+ bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
switch (p->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
- if (unlikely(!ops->vidioc_enum_fmt_vid_cap))
+ if (unlikely(!is_rx || !ops->vidioc_enum_fmt_vid_cap))
break;
return ops->vidioc_enum_fmt_vid_cap(file, fh, arg);
case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
- if (unlikely(!ops->vidioc_enum_fmt_vid_cap_mplane))
+ if (unlikely(!is_rx || !ops->vidioc_enum_fmt_vid_cap_mplane))
break;
return ops->vidioc_enum_fmt_vid_cap_mplane(file, fh, arg);
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
- if (unlikely(!ops->vidioc_enum_fmt_vid_overlay))
+ if (unlikely(!is_rx || !ops->vidioc_enum_fmt_vid_overlay))
break;
return ops->vidioc_enum_fmt_vid_overlay(file, fh, arg);
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
- if (unlikely(!ops->vidioc_enum_fmt_vid_out))
+ if (unlikely(!is_tx || !ops->vidioc_enum_fmt_vid_out))
break;
return ops->vidioc_enum_fmt_vid_out(file, fh, arg);
case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
- if (unlikely(!ops->vidioc_enum_fmt_vid_out_mplane))
+ if (unlikely(!is_tx || !ops->vidioc_enum_fmt_vid_out_mplane))
break;
return ops->vidioc_enum_fmt_vid_out_mplane(file, fh, arg);
}
@@ -1054,46 +1064,50 @@ static int v4l_g_fmt(const struct v4l2_ioctl_ops *ops,
struct file *file, void *fh, void *arg)
{
struct v4l2_format *p = arg;
+ struct video_device *vfd = video_devdata(file);
+ bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
+ bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
+ bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
switch (p->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
- if (unlikely(!ops->vidioc_g_fmt_vid_cap))
+ if (unlikely(!is_rx || !is_vid || !ops->vidioc_g_fmt_vid_cap))
break;
return ops->vidioc_g_fmt_vid_cap(file, fh, arg);
case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
- if (unlikely(!ops->vidioc_g_fmt_vid_cap_mplane))
+ if (unlikely(!is_rx || !is_vid || !ops->vidioc_g_fmt_vid_cap_mplane))
break;
return ops->vidioc_g_fmt_vid_cap_mplane(file, fh, arg);
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
- if (unlikely(!ops->vidioc_g_fmt_vid_overlay))
+ if (unlikely(!is_rx || !is_vid || !ops->vidioc_g_fmt_vid_overlay))
break;
return ops->vidioc_g_fmt_vid_overlay(file, fh, arg);
+ case V4L2_BUF_TYPE_VBI_CAPTURE:
+ if (unlikely(!is_rx || is_vid || !ops->vidioc_g_fmt_vbi_cap))
+ break;
+ return ops->vidioc_g_fmt_vbi_cap(file, fh, arg);
+ case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
+ if (unlikely(!is_rx || is_vid || !ops->vidioc_g_fmt_sliced_vbi_cap))
+ break;
+ return ops->vidioc_g_fmt_sliced_vbi_cap(file, fh, arg);
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
- if (unlikely(!ops->vidioc_g_fmt_vid_out))
+ if (unlikely(!is_tx || !is_vid || !ops->vidioc_g_fmt_vid_out))
break;
return ops->vidioc_g_fmt_vid_out(file, fh, arg);
case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
- if (unlikely(!ops->vidioc_g_fmt_vid_out_mplane))
+ if (unlikely(!is_tx || !is_vid || !ops->vidioc_g_fmt_vid_out_mplane))
break;
return ops->vidioc_g_fmt_vid_out_mplane(file, fh, arg);
case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
- if (unlikely(!ops->vidioc_g_fmt_vid_out_overlay))
+ if (unlikely(!is_tx || !is_vid || !ops->vidioc_g_fmt_vid_out_overlay))
break;
return ops->vidioc_g_fmt_vid_out_overlay(file, fh, arg);
- case V4L2_BUF_TYPE_VBI_CAPTURE:
- if (unlikely(!ops->vidioc_g_fmt_vbi_cap))
- break;
- return ops->vidioc_g_fmt_vbi_cap(file, fh, arg);
case V4L2_BUF_TYPE_VBI_OUTPUT:
- if (unlikely(!ops->vidioc_g_fmt_vbi_out))
+ if (unlikely(!is_tx || is_vid || !ops->vidioc_g_fmt_vbi_out))
break;
return ops->vidioc_g_fmt_vbi_out(file, fh, arg);
- case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
- if (unlikely(!ops->vidioc_g_fmt_sliced_vbi_cap))
- break;
- return ops->vidioc_g_fmt_sliced_vbi_cap(file, fh, arg);
case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
- if (unlikely(!ops->vidioc_g_fmt_sliced_vbi_out))
+ if (unlikely(!is_tx || is_vid || !ops->vidioc_g_fmt_sliced_vbi_out))
break;
return ops->vidioc_g_fmt_sliced_vbi_out(file, fh, arg);
}
@@ -1104,55 +1118,59 @@ static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops,
struct file *file, void *fh, void *arg)
{
struct v4l2_format *p = arg;
+ struct video_device *vfd = video_devdata(file);
+ bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
+ bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
+ bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
switch (p->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
- if (unlikely(!ops->vidioc_s_fmt_vid_cap))
+ if (unlikely(!is_rx || !is_vid || !ops->vidioc_s_fmt_vid_cap))
break;
CLEAR_AFTER_FIELD(p, fmt.pix);
return ops->vidioc_s_fmt_vid_cap(file, fh, arg);
case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
- if (unlikely(!ops->vidioc_s_fmt_vid_cap_mplane))
+ if (unlikely(!is_rx || !is_vid || !ops->vidioc_s_fmt_vid_cap_mplane))
break;
CLEAR_AFTER_FIELD(p, fmt.pix_mp);
return ops->vidioc_s_fmt_vid_cap_mplane(file, fh, arg);
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
- if (unlikely(!ops->vidioc_s_fmt_vid_overlay))
+ if (unlikely(!is_rx || !is_vid || !ops->vidioc_s_fmt_vid_overlay))
break;
CLEAR_AFTER_FIELD(p, fmt.win);
return ops->vidioc_s_fmt_vid_overlay(file, fh, arg);
+ case V4L2_BUF_TYPE_VBI_CAPTURE:
+ if (unlikely(!is_rx || is_vid || !ops->vidioc_s_fmt_vbi_cap))
+ break;
+ CLEAR_AFTER_FIELD(p, fmt.vbi);
+ return ops->vidioc_s_fmt_vbi_cap(file, fh, arg);
+ case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
+ if (unlikely(!is_rx || is_vid || !ops->vidioc_s_fmt_sliced_vbi_cap))
+ break;
+ CLEAR_AFTER_FIELD(p, fmt.sliced);
+ return ops->vidioc_s_fmt_sliced_vbi_cap(file, fh, arg);
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
- if (unlikely(!ops->vidioc_s_fmt_vid_out))
+ if (unlikely(!is_tx || !is_vid || !ops->vidioc_s_fmt_vid_out))
break;
CLEAR_AFTER_FIELD(p, fmt.pix);
return ops->vidioc_s_fmt_vid_out(file, fh, arg);
case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
- if (unlikely(!ops->vidioc_s_fmt_vid_out_mplane))
+ if (unlikely(!is_tx || !is_vid || !ops->vidioc_s_fmt_vid_out_mplane))
break;
CLEAR_AFTER_FIELD(p, fmt.pix_mp);
return ops->vidioc_s_fmt_vid_out_mplane(file, fh, arg);
case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
- if (unlikely(!ops->vidioc_s_fmt_vid_out_overlay))
+ if (unlikely(!is_tx || !is_vid || !ops->vidioc_s_fmt_vid_out_overlay))
break;
CLEAR_AFTER_FIELD(p, fmt.win);
return ops->vidioc_s_fmt_vid_out_overlay(file, fh, arg);
- case V4L2_BUF_TYPE_VBI_CAPTURE:
- if (unlikely(!ops->vidioc_s_fmt_vbi_cap))
- break;
- CLEAR_AFTER_FIELD(p, fmt.vbi);
- return ops->vidioc_s_fmt_vbi_cap(file, fh, arg);
case V4L2_BUF_TYPE_VBI_OUTPUT:
- if (unlikely(!ops->vidioc_s_fmt_vbi_out))
+ if (unlikely(!is_tx || is_vid || !ops->vidioc_s_fmt_vbi_out))
break;
CLEAR_AFTER_FIELD(p, fmt.vbi);
return ops->vidioc_s_fmt_vbi_out(file, fh, arg);
- case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
- if (unlikely(!ops->vidioc_s_fmt_sliced_vbi_cap))
- break;
- CLEAR_AFTER_FIELD(p, fmt.sliced);
- return ops->vidioc_s_fmt_sliced_vbi_cap(file, fh, arg);
case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
- if (unlikely(!ops->vidioc_s_fmt_sliced_vbi_out))
+ if (unlikely(!is_tx || is_vid || !ops->vidioc_s_fmt_sliced_vbi_out))
break;
CLEAR_AFTER_FIELD(p, fmt.sliced);
return ops->vidioc_s_fmt_sliced_vbi_out(file, fh, arg);
@@ -1164,55 +1182,59 @@ static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops,
struct file *file, void *fh, void *arg)
{
struct v4l2_format *p = arg;
+ struct video_device *vfd = video_devdata(file);
+ bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
+ bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
+ bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
switch (p->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
- if (unlikely(!ops->vidioc_try_fmt_vid_cap))
+ if (unlikely(!is_rx || !is_vid || !ops->vidioc_try_fmt_vid_cap))
break;
CLEAR_AFTER_FIELD(p, fmt.pix);
return ops->vidioc_try_fmt_vid_cap(file, fh, arg);
case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
- if (unlikely(!ops->vidioc_try_fmt_vid_cap_mplane))
+ if (unlikely(!is_rx || !is_vid || !ops->vidioc_try_fmt_vid_cap_mplane))
break;
CLEAR_AFTER_FIELD(p, fmt.pix_mp);
return ops->vidioc_try_fmt_vid_cap_mplane(file, fh, arg);
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
- if (unlikely(!ops->vidioc_try_fmt_vid_overlay))
+ if (unlikely(!is_rx || !is_vid || !ops->vidioc_try_fmt_vid_overlay))
break;
CLEAR_AFTER_FIELD(p, fmt.win);
return ops->vidioc_try_fmt_vid_overlay(file, fh, arg);
+ case V4L2_BUF_TYPE_VBI_CAPTURE:
+ if (unlikely(!is_rx || is_vid || !ops->vidioc_try_fmt_vbi_cap))
+ break;
+ CLEAR_AFTER_FIELD(p, fmt.vbi);
+ return ops->vidioc_try_fmt_vbi_cap(file, fh, arg);
+ case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
+ if (unlikely(!is_rx || is_vid || !ops->vidioc_try_fmt_sliced_vbi_cap))
+ break;
+ CLEAR_AFTER_FIELD(p, fmt.sliced);
+ return ops->vidioc_try_fmt_sliced_vbi_cap(file, fh, arg);
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
- if (unlikely(!ops->vidioc_try_fmt_vid_out))
+ if (unlikely(!is_tx || !is_vid || !ops->vidioc_try_fmt_vid_out))
break;
CLEAR_AFTER_FIELD(p, fmt.pix);
return ops->vidioc_try_fmt_vid_out(file, fh, arg);
case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
- if (unlikely(!ops->vidioc_try_fmt_vid_out_mplane))
+ if (unlikely(!is_tx || !is_vid || !ops->vidioc_try_fmt_vid_out_mplane))
break;
CLEAR_AFTER_FIELD(p, fmt.pix_mp);
return ops->vidioc_try_fmt_vid_out_mplane(file, fh, arg);
case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
- if (unlikely(!ops->vidioc_try_fmt_vid_out_overlay))
+ if (unlikely(!is_tx || !is_vid || !ops->vidioc_try_fmt_vid_out_overlay))
break;
CLEAR_AFTER_FIELD(p, fmt.win);
return ops->vidioc_try_fmt_vid_out_overlay(file, fh, arg);
- case V4L2_BUF_TYPE_VBI_CAPTURE:
- if (unlikely(!ops->vidioc_try_fmt_vbi_cap))
- break;
- CLEAR_AFTER_FIELD(p, fmt.vbi);
- return ops->vidioc_try_fmt_vbi_cap(file, fh, arg);
case V4L2_BUF_TYPE_VBI_OUTPUT:
- if (unlikely(!ops->vidioc_try_fmt_vbi_out))
+ if (unlikely(!is_tx || is_vid || !ops->vidioc_try_fmt_vbi_out))
break;
CLEAR_AFTER_FIELD(p, fmt.vbi);
return ops->vidioc_try_fmt_vbi_out(file, fh, arg);
- case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
- if (unlikely(!ops->vidioc_try_fmt_sliced_vbi_cap))
- break;
- CLEAR_AFTER_FIELD(p, fmt.sliced);
- return ops->vidioc_try_fmt_sliced_vbi_cap(file, fh, arg);
case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
- if (unlikely(!ops->vidioc_try_fmt_sliced_vbi_out))
+ if (unlikely(!is_tx || is_vid || !ops->vidioc_try_fmt_sliced_vbi_out))
break;
CLEAR_AFTER_FIELD(p, fmt.sliced);
return ops->vidioc_try_fmt_sliced_vbi_out(file, fh, arg);
@@ -1404,7 +1426,7 @@ static int v4l_reqbufs(const struct v4l2_ioctl_ops *ops,
struct file *file, void *fh, void *arg)
{
struct v4l2_requestbuffers *p = arg;
- int ret = check_fmt(ops, p->type);
+ int ret = check_fmt(file, p->type);
if (ret)
return ret;
@@ -1418,7 +1440,7 @@ static int v4l_querybuf(const struct v4l2_ioctl_ops *ops,
struct file *file, void *fh, void *arg)
{
struct v4l2_buffer *p = arg;
- int ret = check_fmt(ops, p->type);
+ int ret = check_fmt(file, p->type);
return ret ? ret : ops->vidioc_querybuf(file, fh, p);
}
@@ -1427,7 +1449,7 @@ static int v4l_qbuf(const struct v4l2_ioctl_ops *ops,
struct file *file, void *fh, void *arg)
{
struct v4l2_buffer *p = arg;
- int ret = check_fmt(ops, p->type);
+ int ret = check_fmt(file, p->type);
return ret ? ret : ops->vidioc_qbuf(file, fh, p);
}
@@ -1436,7 +1458,7 @@ static int v4l_dqbuf(const struct v4l2_ioctl_ops *ops,
struct file *file, void *fh, void *arg)
{
struct v4l2_buffer *p = arg;
- int ret = check_fmt(ops, p->type);
+ int ret = check_fmt(file, p->type);
return ret ? ret : ops->vidioc_dqbuf(file, fh, p);
}
@@ -1445,7 +1467,7 @@ static int v4l_create_bufs(const struct v4l2_ioctl_ops *ops,
struct file *file, void *fh, void *arg)
{
struct v4l2_create_buffers *create = arg;
- int ret = check_fmt(ops, create->format.type);
+ int ret = check_fmt(file, create->format.type);
return ret ? ret : ops->vidioc_create_bufs(file, fh, create);
}
@@ -1454,7 +1476,7 @@ static int v4l_prepare_buf(const struct v4l2_ioctl_ops *ops,
struct file *file, void *fh, void *arg)
{
struct v4l2_buffer *b = arg;
- int ret = check_fmt(ops, b->type);
+ int ret = check_fmt(file, b->type);
return ret ? ret : ops->vidioc_prepare_buf(file, fh, b);
}
@@ -1465,7 +1487,7 @@ static int v4l_g_parm(const struct v4l2_ioctl_ops *ops,
struct video_device *vfd = video_devdata(file);
struct v4l2_streamparm *p = arg;
v4l2_std_id std;
- int ret = check_fmt(ops, p->type);
+ int ret = check_fmt(file, p->type);
if (ret)
return ret;
@@ -1488,7 +1510,7 @@ static int v4l_s_parm(const struct v4l2_ioctl_ops *ops,
struct file *file, void *fh, void *arg)
{
struct v4l2_streamparm *p = arg;
- int ret = check_fmt(ops, p->type);
+ int ret = check_fmt(file, p->type);
return ret ? ret : ops->vidioc_s_parm(file, fh, p);
}
@@ -1810,6 +1832,10 @@ static int v4l_g_sliced_vbi_cap(const struct v4l2_ioctl_ops *ops,
struct file *file, void *fh, void *arg)
{
struct v4l2_sliced_vbi_cap *p = arg;
+ int ret = check_fmt(file, p->type);
+
+ if (ret)
+ return ret;
/* Clear up to type, everything after type is zeroed already */
memset(p, 0, offsetof(struct v4l2_sliced_vbi_cap, type));
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-22 01:35:40 +0000