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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.c77
1 files changed, 46 insertions, 31 deletions
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index 51b912743f0f..4e700583659b 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -932,12 +932,22 @@ static int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv)
static int check_fmt(struct file *file, enum v4l2_buf_type type)
{
+ const u32 vid_caps = V4L2_CAP_VIDEO_CAPTURE |
+ V4L2_CAP_VIDEO_CAPTURE_MPLANE |
+ V4L2_CAP_VIDEO_OUTPUT |
+ V4L2_CAP_VIDEO_OUTPUT_MPLANE |
+ V4L2_CAP_VIDEO_M2M | V4L2_CAP_VIDEO_M2M_MPLANE;
+ const u32 meta_caps = V4L2_CAP_META_CAPTURE |
+ V4L2_CAP_META_OUTPUT;
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_vid = vfd->vfl_type == VFL_TYPE_GRABBER &&
+ (vfd->device_caps & vid_caps);
bool is_vbi = vfd->vfl_type == VFL_TYPE_VBI;
bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR;
bool is_tch = vfd->vfl_type == VFL_TYPE_TOUCH;
+ bool is_meta = vfd->vfl_type == VFL_TYPE_GRABBER &&
+ (vfd->device_caps & meta_caps);
bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
@@ -996,11 +1006,11 @@ static int check_fmt(struct file *file, enum v4l2_buf_type type)
return 0;
break;
case V4L2_BUF_TYPE_META_CAPTURE:
- if (is_vid && is_rx && ops->vidioc_g_fmt_meta_cap)
+ if (is_meta && is_rx && ops->vidioc_g_fmt_meta_cap)
return 0;
break;
case V4L2_BUF_TYPE_META_OUTPUT:
- if (is_vid && is_tx && ops->vidioc_g_fmt_meta_out)
+ if (is_meta && is_tx && ops->vidioc_g_fmt_meta_out)
return 0;
break;
default:
@@ -1330,6 +1340,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
case V4L2_META_FMT_VSP1_HGT: descr = "R-Car VSP1 2-D Histogram"; break;
case V4L2_META_FMT_UVC: descr = "UVC Payload Header Metadata"; break;
case V4L2_META_FMT_D4XX: descr = "Intel D4xx UVC Metadata"; break;
+ case V4L2_META_FMT_VIVID: descr = "Vivid Metadata"; break;
default:
/* Compressed formats */
@@ -1356,6 +1367,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
case V4L2_PIX_FMT_VP8_FRAME: descr = "VP8 Frame"; break;
case V4L2_PIX_FMT_VP9: descr = "VP9"; break;
case V4L2_PIX_FMT_HEVC: descr = "HEVC"; break; /* aka H.265 */
+ case V4L2_PIX_FMT_HEVC_SLICE: descr = "HEVC Parsed Slice Data"; break;
case V4L2_PIX_FMT_FWHT: descr = "FWHT"; break; /* used in vicodec */
case V4L2_PIX_FMT_FWHT_STATELESS: descr = "FWHT Stateless"; break; /* used in vicodec */
case V4L2_PIX_FMT_CPIA1: descr = "GSPCA CPiA YUV"; break;
@@ -1466,10 +1478,26 @@ static int v4l_enum_fmt(const struct v4l2_ioctl_ops *ops,
return ret;
}
+static void v4l_pix_format_touch(struct v4l2_pix_format *p)
+{
+ /*
+ * The v4l2_pix_format structure contains fields that make no sense for
+ * touch. Set them to default values in this case.
+ */
+
+ p->field = V4L2_FIELD_NONE;
+ p->colorspace = V4L2_COLORSPACE_RAW;
+ p->flags = 0;
+ p->ycbcr_enc = 0;
+ p->quantization = 0;
+ p->xfer_func = 0;
+}
+
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);
int ret = check_fmt(file, p->type);
if (ret)
@@ -1507,6 +1535,8 @@ static int v4l_g_fmt(const struct v4l2_ioctl_ops *ops,
ret = ops->vidioc_g_fmt_vid_cap(file, fh, arg);
/* just in case the driver zeroed it again */
p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
+ if (vfd->vfl_type == VFL_TYPE_TOUCH)
+ v4l_pix_format_touch(&p->fmt.pix);
return ret;
case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
return ops->vidioc_g_fmt_vid_cap_mplane(file, fh, arg);
@@ -1544,21 +1574,6 @@ static int v4l_g_fmt(const struct v4l2_ioctl_ops *ops,
return -EINVAL;
}
-static void v4l_pix_format_touch(struct v4l2_pix_format *p)
-{
- /*
- * The v4l2_pix_format structure contains fields that make no sense for
- * touch. Set them to default values in this case.
- */
-
- p->field = V4L2_FIELD_NONE;
- p->colorspace = V4L2_COLORSPACE_RAW;
- p->flags = 0;
- p->ycbcr_enc = 0;
- p->quantization = 0;
- p->xfer_func = 0;
-}
-
static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops,
struct file *file, void *fh, void *arg)
{
@@ -1602,12 +1617,12 @@ static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops,
case V4L2_BUF_TYPE_VBI_CAPTURE:
if (unlikely(!ops->vidioc_s_fmt_vbi_cap))
break;
- CLEAR_AFTER_FIELD(p, fmt.vbi);
+ CLEAR_AFTER_FIELD(p, fmt.vbi.flags);
return ops->vidioc_s_fmt_vbi_cap(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);
+ CLEAR_AFTER_FIELD(p, fmt.sliced.io_size);
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))
@@ -1633,22 +1648,22 @@ static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops,
case V4L2_BUF_TYPE_VBI_OUTPUT:
if (unlikely(!ops->vidioc_s_fmt_vbi_out))
break;
- CLEAR_AFTER_FIELD(p, fmt.vbi);
+ CLEAR_AFTER_FIELD(p, fmt.vbi.flags);
return ops->vidioc_s_fmt_vbi_out(file, fh, arg);
case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
if (unlikely(!ops->vidioc_s_fmt_sliced_vbi_out))
break;
- CLEAR_AFTER_FIELD(p, fmt.sliced);
+ CLEAR_AFTER_FIELD(p, fmt.sliced.io_size);
return ops->vidioc_s_fmt_sliced_vbi_out(file, fh, arg);
case V4L2_BUF_TYPE_SDR_CAPTURE:
if (unlikely(!ops->vidioc_s_fmt_sdr_cap))
break;
- CLEAR_AFTER_FIELD(p, fmt.sdr);
+ CLEAR_AFTER_FIELD(p, fmt.sdr.buffersize);
return ops->vidioc_s_fmt_sdr_cap(file, fh, arg);
case V4L2_BUF_TYPE_SDR_OUTPUT:
if (unlikely(!ops->vidioc_s_fmt_sdr_out))
break;
- CLEAR_AFTER_FIELD(p, fmt.sdr);
+ CLEAR_AFTER_FIELD(p, fmt.sdr.buffersize);
return ops->vidioc_s_fmt_sdr_out(file, fh, arg);
case V4L2_BUF_TYPE_META_CAPTURE:
if (unlikely(!ops->vidioc_s_fmt_meta_cap))
@@ -1704,12 +1719,12 @@ static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops,
case V4L2_BUF_TYPE_VBI_CAPTURE:
if (unlikely(!ops->vidioc_try_fmt_vbi_cap))
break;
- CLEAR_AFTER_FIELD(p, fmt.vbi);
+ CLEAR_AFTER_FIELD(p, fmt.vbi.flags);
return ops->vidioc_try_fmt_vbi_cap(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);
+ CLEAR_AFTER_FIELD(p, fmt.sliced.io_size);
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))
@@ -1735,22 +1750,22 @@ static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops,
case V4L2_BUF_TYPE_VBI_OUTPUT:
if (unlikely(!ops->vidioc_try_fmt_vbi_out))
break;
- CLEAR_AFTER_FIELD(p, fmt.vbi);
+ CLEAR_AFTER_FIELD(p, fmt.vbi.flags);
return ops->vidioc_try_fmt_vbi_out(file, fh, arg);
case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
if (unlikely(!ops->vidioc_try_fmt_sliced_vbi_out))
break;
- CLEAR_AFTER_FIELD(p, fmt.sliced);
+ CLEAR_AFTER_FIELD(p, fmt.sliced.io_size);
return ops->vidioc_try_fmt_sliced_vbi_out(file, fh, arg);
case V4L2_BUF_TYPE_SDR_CAPTURE:
if (unlikely(!ops->vidioc_try_fmt_sdr_cap))
break;
- CLEAR_AFTER_FIELD(p, fmt.sdr);
+ CLEAR_AFTER_FIELD(p, fmt.sdr.buffersize);
return ops->vidioc_try_fmt_sdr_cap(file, fh, arg);
case V4L2_BUF_TYPE_SDR_OUTPUT:
if (unlikely(!ops->vidioc_try_fmt_sdr_out))
break;
- CLEAR_AFTER_FIELD(p, fmt.sdr);
+ CLEAR_AFTER_FIELD(p, fmt.sdr.buffersize);
return ops->vidioc_try_fmt_sdr_out(file, fh, arg);
case V4L2_BUF_TYPE_META_CAPTURE:
if (unlikely(!ops->vidioc_try_fmt_meta_cap))
@@ -2637,7 +2652,7 @@ struct v4l2_ioctl_info {
/* Zero struct from after the field to the end */
#define INFO_FL_CLEAR(v4l2_struct, field) \
((offsetof(struct v4l2_struct, field) + \
- sizeof(((struct v4l2_struct *)0)->field)) << 16)
+ FIELD_SIZEOF(struct v4l2_struct, field)) << 16)
#define INFO_FL_CLEAR_MASK (_IOC_SIZEMASK << 16)
#define DEFINE_V4L_STUB_FUNC(_vidioc) \
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.