diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-07-05 10:42:32 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-07-05 10:42:32 -0700 |
commit | 15ac468614e5e4fee82e1eb32568f427b0e51adc (patch) | |
tree | ab0c2f7a282c390a9aa337c14d9941e963a1049a /drivers/media/platform/video-mux.c | |
parent | 2784d74bcc811e9d743398da38552e6f9c73e96b (diff) | |
parent | c61480a2ea5e5b997d10dfda556d3a63e31f87cd (diff) |
Merge tag 'media/v6.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- Lots of improvement at atomisp driver, which is starting to look in
good shape
- Mediatek vcodec driver has gained support for av1 and hevc stateless
codecs
- New sensor driver: ov01a10
- verisilicon driver has gained AV1 entropy helpers
- tegra-video has gained support for Tegra20 parallel input
- dvb core has gained an extra property to better support DVB-S2X
- as usual, lots of cleanups, fixes and improvements on media drivers
* tag 'media/v6.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (253 commits)
media: wl128x: fix a clang warning
media: dvb: mb86a20s: get rid of a clang-15 warning
media: cec: i2c: ch7322: also select REGMAP
media: add HAS_IOPORT dependencies
media: tc358746: select CONFIG_GENERIC_PHY
media: mediatek: vcodec: Add dbgfs help function
media: mediatek: vcodec: Add encode to support dbgfs
media: mediatek: vcodec: Change dbgfs interface to support encode
media: mediatek: vcodec: Get each instance format type
media: mediatek: vcodec: Get each context resolution information
media: mediatek: vcodec: Add a debugfs file to get different useful information
media: mediatek: vcodec: Add debug params to control different log level
media: mediatek: vcodec: Add debugfs interface to get debug information
media: mediatek: vcodec: support stateless AV1 decoder
media: verisilicon: Conditionally ignore native formats
media: verisilicon: Enable AV1 decoder on rk3588
media: verisilicon: Add film grain feature to AV1 driver
media: verisilicon: Add Rockchip AV1 decoder
media: verisilicon: Add AV1 entropy helpers
media: verisilicon: Compute motion vectors size for AV1 frames
...
Diffstat (limited to 'drivers/media/platform/video-mux.c')
-rw-r--r-- | drivers/media/platform/video-mux.c | 102 |
1 files changed, 42 insertions, 60 deletions
diff --git a/drivers/media/platform/video-mux.c b/drivers/media/platform/video-mux.c index 1d9f32e5a917..6d273abfe16c 100644 --- a/drivers/media/platform/video-mux.c +++ b/drivers/media/platform/video-mux.c @@ -24,7 +24,6 @@ struct video_mux { struct v4l2_subdev subdev; struct v4l2_async_notifier notifier; struct media_pad *pads; - struct v4l2_mbus_framefmt *format_mbus; struct mux_control *mux; struct mutex lock; int active; @@ -71,6 +70,9 @@ static int video_mux_link_setup(struct media_entity *entity, mutex_lock(&vmux->lock); if (flags & MEDIA_LNK_FL_ENABLED) { + struct v4l2_subdev_state *sd_state; + struct v4l2_mbus_framefmt *source_mbusformat; + if (vmux->active == local->index) goto out; @@ -86,7 +88,12 @@ static int video_mux_link_setup(struct media_entity *entity, vmux->active = local->index; /* Propagate the active format to the source */ - vmux->format_mbus[source_pad] = vmux->format_mbus[vmux->active]; + sd_state = v4l2_subdev_lock_and_get_active_state(sd); + source_mbusformat = v4l2_subdev_get_pad_format(sd, sd_state, + source_pad); + *source_mbusformat = *v4l2_subdev_get_pad_format(sd, sd_state, + vmux->active); + v4l2_subdev_unlock_state(sd_state); } else { if (vmux->active != local->index) goto out; @@ -138,40 +145,6 @@ static const struct v4l2_subdev_video_ops video_mux_subdev_video_ops = { .s_stream = video_mux_s_stream, }; -static struct v4l2_mbus_framefmt * -__video_mux_get_pad_format(struct v4l2_subdev *sd, - struct v4l2_subdev_state *sd_state, - unsigned int pad, u32 which) -{ - struct video_mux *vmux = v4l2_subdev_to_video_mux(sd); - - switch (which) { - case V4L2_SUBDEV_FORMAT_TRY: - return v4l2_subdev_get_try_format(sd, sd_state, pad); - case V4L2_SUBDEV_FORMAT_ACTIVE: - return &vmux->format_mbus[pad]; - default: - return NULL; - } -} - -static int video_mux_get_format(struct v4l2_subdev *sd, - struct v4l2_subdev_state *sd_state, - struct v4l2_subdev_format *sdformat) -{ - struct video_mux *vmux = v4l2_subdev_to_video_mux(sd); - - mutex_lock(&vmux->lock); - - sdformat->format = *__video_mux_get_pad_format(sd, sd_state, - sdformat->pad, - sdformat->which); - - mutex_unlock(&vmux->lock); - - return 0; -} - static int video_mux_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *sdformat) @@ -181,14 +154,11 @@ static int video_mux_set_format(struct v4l2_subdev *sd, struct media_pad *pad = &vmux->pads[sdformat->pad]; u16 source_pad = sd->entity.num_pads - 1; - mbusformat = __video_mux_get_pad_format(sd, sd_state, sdformat->pad, - sdformat->which); + mbusformat = v4l2_subdev_get_pad_format(sd, sd_state, sdformat->pad); if (!mbusformat) return -EINVAL; - source_mbusformat = __video_mux_get_pad_format(sd, sd_state, - source_pad, - sdformat->which); + source_mbusformat = v4l2_subdev_get_pad_format(sd, sd_state, source_pad); if (!source_mbusformat) return -EINVAL; @@ -298,7 +268,8 @@ static int video_mux_set_format(struct v4l2_subdev *sd, /* Source pad mirrors active sink pad, no limitations on sink pads */ if ((pad->flags & MEDIA_PAD_FL_SOURCE) && vmux->active >= 0) - sdformat->format = vmux->format_mbus[vmux->active]; + sdformat->format = *v4l2_subdev_get_pad_format(sd, sd_state, + vmux->active); *mbusformat = sdformat->format; @@ -321,7 +292,7 @@ static int video_mux_init_cfg(struct v4l2_subdev *sd, mutex_lock(&vmux->lock); for (i = 0; i < sd->entity.num_pads; i++) { - mbusformat = v4l2_subdev_get_try_format(sd, sd_state, i); + mbusformat = v4l2_subdev_get_pad_format(sd, sd_state, i); *mbusformat = video_mux_format_mbus_default; } @@ -332,7 +303,7 @@ static int video_mux_init_cfg(struct v4l2_subdev *sd, static const struct v4l2_subdev_pad_ops video_mux_pad_ops = { .init_cfg = video_mux_init_cfg, - .get_fmt = video_mux_get_format, + .get_fmt = v4l2_subdev_get_fmt, .set_fmt = video_mux_set_format, }; @@ -389,7 +360,7 @@ static int video_mux_async_register(struct video_mux *vmux, ret = PTR_ERR(asd); /* OK if asd already exists */ if (ret != -EEXIST) - return ret; + goto err_nf_cleanup; } } @@ -397,9 +368,19 @@ static int video_mux_async_register(struct video_mux *vmux, ret = v4l2_async_subdev_nf_register(&vmux->subdev, &vmux->notifier); if (ret) - return ret; + goto err_nf_cleanup; + + ret = v4l2_async_register_subdev(&vmux->subdev); + if (ret) + goto err_nf_unregister; - return v4l2_async_register_subdev(&vmux->subdev); + return 0; + +err_nf_unregister: + v4l2_async_nf_unregister(&vmux->notifier); +err_nf_cleanup: + v4l2_async_nf_cleanup(&vmux->notifier); + return ret; } static int video_mux_probe(struct platform_device *pdev) @@ -452,17 +433,9 @@ static int video_mux_probe(struct platform_device *pdev) if (!vmux->pads) return -ENOMEM; - vmux->format_mbus = devm_kcalloc(dev, num_pads, - sizeof(*vmux->format_mbus), - GFP_KERNEL); - if (!vmux->format_mbus) - return -ENOMEM; - - for (i = 0; i < num_pads; i++) { + for (i = 0; i < num_pads; i++) vmux->pads[i].flags = (i < num_pads - 1) ? MEDIA_PAD_FL_SINK : MEDIA_PAD_FL_SOURCE; - vmux->format_mbus[i] = video_mux_format_mbus_default; - } vmux->subdev.entity.function = MEDIA_ENT_F_VID_MUX; ret = media_entity_pads_init(&vmux->subdev.entity, num_pads, @@ -472,12 +445,20 @@ static int video_mux_probe(struct platform_device *pdev) vmux->subdev.entity.ops = &video_mux_ops; + ret = v4l2_subdev_init_finalize(&vmux->subdev); + if (ret < 0) + goto err_entity_cleanup; + ret = video_mux_async_register(vmux, num_pads - 1); - if (ret) { - v4l2_async_nf_unregister(&vmux->notifier); - v4l2_async_nf_cleanup(&vmux->notifier); - } + if (ret) + goto err_subdev_cleanup; + + return 0; +err_subdev_cleanup: + v4l2_subdev_cleanup(&vmux->subdev); +err_entity_cleanup: + media_entity_cleanup(&vmux->subdev.entity); return ret; } @@ -489,6 +470,7 @@ static void video_mux_remove(struct platform_device *pdev) v4l2_async_nf_unregister(&vmux->notifier); v4l2_async_nf_cleanup(&vmux->notifier); v4l2_async_unregister_subdev(sd); + v4l2_subdev_cleanup(sd); media_entity_cleanup(&sd->entity); } |