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-rw-r--r--drivers/media/video/v4l2-compat-ioctl32.c3
-rw-r--r--drivers/media/video/v4l2-ioctl.c126
-rw-r--r--include/media/v4l2-ioctl.h6
-rw-r--r--include/media/v4l2-subdev.h6
4 files changed, 104 insertions, 37 deletions
diff --git a/drivers/media/video/v4l2-compat-ioctl32.c b/drivers/media/video/v4l2-compat-ioctl32.c
index 89ae433877e6..5327ad3a6390 100644
--- a/drivers/media/video/v4l2-compat-ioctl32.c
+++ b/drivers/media/video/v4l2-compat-ioctl32.c
@@ -1023,6 +1023,9 @@ long v4l2_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg)
case VIDIOC_UNSUBSCRIBE_EVENT:
case VIDIOC_CREATE_BUFS32:
case VIDIOC_PREPARE_BUF32:
+ case VIDIOC_ENUM_DV_TIMINGS:
+ case VIDIOC_QUERY_DV_TIMINGS:
+ case VIDIOC_DV_TIMINGS_CAP:
ret = do_video_ioctl(file, cmd, arg);
break;
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index 623d280ce095..91be4e871f43 100644
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -281,6 +281,9 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO(VIDIOC_UNSUBSCRIBE_EVENT, 0),
IOCTL_INFO(VIDIOC_CREATE_BUFS, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_PREPARE_BUF, 0),
+ IOCTL_INFO(VIDIOC_ENUM_DV_TIMINGS, 0),
+ IOCTL_INFO(VIDIOC_QUERY_DV_TIMINGS, 0),
+ IOCTL_INFO(VIDIOC_DV_TIMINGS_CAP, 0),
};
#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)
@@ -368,6 +371,34 @@ static inline void dbgrect(struct video_device *vfd, char *s,
r->width, r->height);
};
+static void dbgtimings(struct video_device *vfd,
+ const struct v4l2_dv_timings *p)
+{
+ switch (p->type) {
+ case V4L2_DV_BT_656_1120:
+ dbgarg2("bt-656/1120:interlaced=%d,"
+ " pixelclock=%lld,"
+ " width=%d, height=%d, polarities=%x,"
+ " hfrontporch=%d, hsync=%d,"
+ " hbackporch=%d, vfrontporch=%d,"
+ " vsync=%d, vbackporch=%d,"
+ " il_vfrontporch=%d, il_vsync=%d,"
+ " il_vbackporch=%d, standards=%x, flags=%x\n",
+ p->bt.interlaced, p->bt.pixelclock,
+ p->bt.width, p->bt.height,
+ p->bt.polarities, p->bt.hfrontporch,
+ p->bt.hsync, p->bt.hbackporch,
+ p->bt.vfrontporch, p->bt.vsync,
+ p->bt.vbackporch, p->bt.il_vfrontporch,
+ p->bt.il_vsync, p->bt.il_vbackporch,
+ p->bt.standards, p->bt.flags);
+ break;
+ default:
+ dbgarg2("Unknown type %d!\n", p->type);
+ break;
+ }
+}
+
static inline void v4l_print_pix_fmt(struct video_device *vfd,
struct v4l2_pix_format *fmt)
{
@@ -1916,25 +1947,13 @@ static long __video_do_ioctl(struct file *file,
{
struct v4l2_dv_timings *p = arg;
+ dbgtimings(vfd, p);
switch (p->type) {
case V4L2_DV_BT_656_1120:
- dbgarg2("bt-656/1120:interlaced=%d, pixelclock=%lld,"
- " width=%d, height=%d, polarities=%x,"
- " hfrontporch=%d, hsync=%d, hbackporch=%d,"
- " vfrontporch=%d, vsync=%d, vbackporch=%d,"
- " il_vfrontporch=%d, il_vsync=%d,"
- " il_vbackporch=%d\n",
- p->bt.interlaced, p->bt.pixelclock,
- p->bt.width, p->bt.height, p->bt.polarities,
- p->bt.hfrontporch, p->bt.hsync,
- p->bt.hbackporch, p->bt.vfrontporch,
- p->bt.vsync, p->bt.vbackporch,
- p->bt.il_vfrontporch, p->bt.il_vsync,
- p->bt.il_vbackporch);
ret = ops->vidioc_s_dv_timings(file, fh, p);
break;
default:
- dbgarg2("Unknown type %d!\n", p->type);
+ ret = -EINVAL;
break;
}
break;
@@ -1944,29 +1963,60 @@ static long __video_do_ioctl(struct file *file,
struct v4l2_dv_timings *p = arg;
ret = ops->vidioc_g_dv_timings(file, fh, p);
+ if (!ret)
+ dbgtimings(vfd, p);
+ break;
+ }
+ case VIDIOC_ENUM_DV_TIMINGS:
+ {
+ struct v4l2_enum_dv_timings *p = arg;
+
+ if (!ops->vidioc_enum_dv_timings)
+ break;
+
+ ret = ops->vidioc_enum_dv_timings(file, fh, p);
if (!ret) {
- switch (p->type) {
- case V4L2_DV_BT_656_1120:
- dbgarg2("bt-656/1120:interlaced=%d,"
- " pixelclock=%lld,"
- " width=%d, height=%d, polarities=%x,"
- " hfrontporch=%d, hsync=%d,"
- " hbackporch=%d, vfrontporch=%d,"
- " vsync=%d, vbackporch=%d,"
- " il_vfrontporch=%d, il_vsync=%d,"
- " il_vbackporch=%d\n",
- p->bt.interlaced, p->bt.pixelclock,
- p->bt.width, p->bt.height,
- p->bt.polarities, p->bt.hfrontporch,
- p->bt.hsync, p->bt.hbackporch,
- p->bt.vfrontporch, p->bt.vsync,
- p->bt.vbackporch, p->bt.il_vfrontporch,
- p->bt.il_vsync, p->bt.il_vbackporch);
- break;
- default:
- dbgarg2("Unknown type %d!\n", p->type);
- break;
- }
+ dbgarg(cmd, "index=%d: ", p->index);
+ dbgtimings(vfd, &p->timings);
+ }
+ break;
+ }
+ case VIDIOC_QUERY_DV_TIMINGS:
+ {
+ struct v4l2_dv_timings *p = arg;
+
+ if (!ops->vidioc_query_dv_timings)
+ break;
+
+ ret = ops->vidioc_query_dv_timings(file, fh, p);
+ if (!ret)
+ dbgtimings(vfd, p);
+ break;
+ }
+ case VIDIOC_DV_TIMINGS_CAP:
+ {
+ struct v4l2_dv_timings_cap *p = arg;
+
+ if (!ops->vidioc_dv_timings_cap)
+ break;
+
+ ret = ops->vidioc_dv_timings_cap(file, fh, p);
+ if (ret)
+ break;
+ switch (p->type) {
+ case V4L2_DV_BT_656_1120:
+ dbgarg(cmd,
+ "type=%d, width=%u-%u, height=%u-%u, "
+ "pixelclock=%llu-%llu, standards=%x, capabilities=%x ",
+ p->type,
+ p->bt.min_width, p->bt.max_width,
+ p->bt.min_height, p->bt.max_height,
+ p->bt.min_pixelclock, p->bt.max_pixelclock,
+ p->bt.standards, p->bt.capabilities);
+ break;
+ default:
+ dbgarg(cmd, "unknown type ");
+ break;
}
break;
}
@@ -2215,7 +2265,9 @@ video_usercopy(struct file *file, unsigned int cmd, unsigned long arg,
err = -EFAULT;
goto out_array_args;
}
- if (err < 0)
+ /* VIDIOC_QUERY_DV_TIMINGS can return an error, but still have valid
+ results that must be returned. */
+ if (err < 0 && cmd != VIDIOC_QUERY_DV_TIMINGS)
goto out;
out_array_args:
diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h
index 3cb939cd03f9..d8b76f7392f8 100644
--- a/include/media/v4l2-ioctl.h
+++ b/include/media/v4l2-ioctl.h
@@ -271,6 +271,12 @@ struct v4l2_ioctl_ops {
struct v4l2_dv_timings *timings);
int (*vidioc_g_dv_timings) (struct file *file, void *fh,
struct v4l2_dv_timings *timings);
+ int (*vidioc_query_dv_timings) (struct file *file, void *fh,
+ struct v4l2_dv_timings *timings);
+ int (*vidioc_enum_dv_timings) (struct file *file, void *fh,
+ struct v4l2_enum_dv_timings *timings);
+ int (*vidioc_dv_timings_cap) (struct file *file, void *fh,
+ struct v4l2_dv_timings_cap *cap);
int (*vidioc_subscribe_event) (struct v4l2_fh *fh,
struct v4l2_event_subscription *sub);
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index 1c2318b15bd2..c35a3545e273 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -307,6 +307,12 @@ struct v4l2_subdev_video_ops {
struct v4l2_dv_timings *timings);
int (*g_dv_timings)(struct v4l2_subdev *sd,
struct v4l2_dv_timings *timings);
+ int (*enum_dv_timings)(struct v4l2_subdev *sd,
+ struct v4l2_enum_dv_timings *timings);
+ int (*query_dv_timings)(struct v4l2_subdev *sd,
+ struct v4l2_dv_timings *timings);
+ int (*dv_timings_cap)(struct v4l2_subdev *sd,
+ struct v4l2_dv_timings_cap *cap);
int (*enum_mbus_fmt)(struct v4l2_subdev *sd, unsigned int index,
enum v4l2_mbus_pixelcode *code);
int (*enum_mbus_fsizes)(struct v4l2_subdev *sd,
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.