This is an automatic generated email to let you know that the following patch were queued at the http://git.linuxtv.org/cgit.cgi/v4l-utils.git tree:
Subject: media-ctl: Check for Streams API support Author: Tomi Valkeinen <[email protected]> Date: Tue Aug 8 09:19:25 2023 +0300 Use the new VIDIOC_SUBDEV_S_CLIENT_CAP ioctl to inform the kernel that we support streams, and use the return values of VIDIOC_SUBDEV_S_CLIENT_CAP and VIDIOC_SUBDEV_QUERYCAP to decide if the entity supports streams. If not, return an error in case the user tries to use streams. Signed-off-by: Tomi Valkeinen <[email protected]> Reviewed-by: Laurent Pinchart <[email protected]> Signed-off-by: Hans Verkuil <[email protected]> utils/media-ctl/libv4l2subdev.c | 56 +++++++++++++++++++++++++++++++++++++++++ utils/media-ctl/mediactl-priv.h | 1 + 2 files changed, 57 insertions(+) --- http://git.linuxtv.org/cgit.cgi/v4l-utils.git/commit/?id=e2f95f692caec6dfcb0ce73148f42032161e59bb diff --git a/utils/media-ctl/libv4l2subdev.c b/utils/media-ctl/libv4l2subdev.c index 2144a5275544..16e1284cc0a3 100644 --- a/utils/media-ctl/libv4l2subdev.c +++ b/utils/media-ctl/libv4l2subdev.c @@ -48,6 +48,12 @@ int v4l2_subdev_open(struct media_entity *entity) { + struct v4l2_subdev_client_capability clientcap = {}; + struct v4l2_subdev_capability subdevcap = {}; + bool subdev_streams; + bool client_streams; + int ret; + if (entity->fd != -1) return 0; @@ -60,6 +66,16 @@ int v4l2_subdev_open(struct media_entity *entity) return ret; } + ret = ioctl(entity->fd, VIDIOC_SUBDEV_QUERYCAP, &subdevcap); + subdev_streams = !ret && (subdevcap.capabilities & V4L2_SUBDEV_CAP_STREAMS); + + clientcap.capabilities = V4L2_SUBDEV_CLIENT_CAP_STREAMS; + + ret = ioctl(entity->fd, VIDIOC_SUBDEV_S_CLIENT_CAP, &clientcap); + client_streams = !ret && (clientcap.capabilities & V4L2_SUBDEV_CLIENT_CAP_STREAMS); + + entity->supports_streams = subdev_streams && client_streams; + return 0; } @@ -80,6 +96,11 @@ int v4l2_subdev_get_format(struct media_entity *entity, if (ret < 0) return ret; + if (!entity->supports_streams && stream) { + media_dbg(entity->media, "Streams API not supported\n"); + return -ENOTSUP; + } + memset(&fmt, 0, sizeof(fmt)); fmt.pad = pad; fmt.stream = stream; @@ -105,6 +126,11 @@ int v4l2_subdev_set_format(struct media_entity *entity, if (ret < 0) return ret; + if (!entity->supports_streams && stream) { + media_dbg(entity->media, "Streams API not supported\n"); + return -ENOTSUP; + } + memset(&fmt, 0, sizeof(fmt)); fmt.pad = pad; fmt.stream = stream; @@ -133,6 +159,11 @@ int v4l2_subdev_get_selection(struct media_entity *entity, if (ret < 0) return ret; + if (!entity->supports_streams && stream) { + media_dbg(entity->media, "Streams API not supported\n"); + return -ENOTSUP; + } + memset(&u.sel, 0, sizeof(u.sel)); u.sel.pad = pad; u.sel.target = target; @@ -172,6 +203,11 @@ int v4l2_subdev_set_selection(struct media_entity *entity, if (ret < 0) return ret; + if (!entity->supports_streams && stream) { + media_dbg(entity->media, "Streams API not supported\n"); + return -ENOTSUP; + } + memset(&u.sel, 0, sizeof(u.sel)); u.sel.pad = pad; u.sel.stream = stream; @@ -215,6 +251,11 @@ int v4l2_subdev_get_routing(struct media_entity *entity, if (ret < 0) return ret; + if (!entity->supports_streams) { + media_dbg(entity->media, "Streams API not supported\n"); + return -ENOTSUP; + } + ret = ioctl(entity->fd, VIDIOC_SUBDEV_G_ROUTING, &routing); if (ret == -1 && errno != ENOSPC) return -errno; @@ -257,6 +298,11 @@ int v4l2_subdev_set_routing(struct media_entity *entity, if (ret < 0) return ret; + if (!entity->supports_streams) { + media_dbg(entity->media, "Streams API not supported\n"); + return -ENOTSUP; + } + ret = ioctl(entity->fd, VIDIOC_SUBDEV_S_ROUTING, &routing); if (ret == -1) return -errno; @@ -347,6 +393,11 @@ int v4l2_subdev_get_frame_interval(struct media_entity *entity, if (ret < 0) return ret; + if (!entity->supports_streams && stream) { + media_dbg(entity->media, "Streams API not supported\n"); + return -ENOTSUP; + } + memset(&ival, 0, sizeof(ival)); ival.pad = pad; ival.stream = stream; @@ -370,6 +421,11 @@ int v4l2_subdev_set_frame_interval(struct media_entity *entity, if (ret < 0) return ret; + if (!entity->supports_streams && stream) { + media_dbg(entity->media, "Streams API not supported\n"); + return -ENOTSUP; + } + memset(&ival, 0, sizeof(ival)); ival.pad = pad; ival.stream = stream; diff --git a/utils/media-ctl/mediactl-priv.h b/utils/media-ctl/mediactl-priv.h index a0d3a55a15a3..eb55e07eab22 100644 --- a/utils/media-ctl/mediactl-priv.h +++ b/utils/media-ctl/mediactl-priv.h @@ -33,6 +33,7 @@ struct media_entity { struct media_link *links; unsigned int max_links; unsigned int num_links; + bool supports_streams; char devname[32]; int fd; _______________________________________________ linuxtv-commits mailing list [email protected] https://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
