diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0306-staging-bcm2835-codec-add-media-controller-support.patch')
-rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0306-staging-bcm2835-codec-add-media-controller-support.patch | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0306-staging-bcm2835-codec-add-media-controller-support.patch b/target/linux/bcm27xx/patches-5.4/950-0306-staging-bcm2835-codec-add-media-controller-support.patch new file mode 100644 index 0000000000..f0ac32340c --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0306-staging-bcm2835-codec-add-media-controller-support.patch @@ -0,0 +1,163 @@ +From 4d066da23979b8de03b5915388136be6e293600f Mon Sep 17 00:00:00 2001 +From: Kieran Bingham <kieran.bingham@ideasonboard.com> +Date: Wed, 20 Mar 2019 12:54:15 +0000 +Subject: [PATCH] staging: bcm2835-codec: add media controller support + +Provide a single media device to contain all of the bcm2835_codec +devices created. + +Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> +--- + .../vc04_services/bcm2835-codec/Kconfig | 2 +- + .../bcm2835-codec/bcm2835-v4l2-codec.c | 41 +++++++++++++++++-- + 2 files changed, 38 insertions(+), 5 deletions(-) + +--- a/drivers/staging/vc04_services/bcm2835-codec/Kconfig ++++ b/drivers/staging/vc04_services/bcm2835-codec/Kconfig +@@ -1,6 +1,6 @@ + config VIDEO_CODEC_BCM2835 + tristate "BCM2835 Video codec support" +- depends on MEDIA_SUPPORT ++ depends on MEDIA_SUPPORT && MEDIA_CONTROLLER + depends on VIDEO_V4L2 && (ARCH_BCM2835 || COMPILE_TEST) + select BCM2835_VCHIQ_MMAL + select VIDEOBUF2_DMA_CONTIG +--- a/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c ++++ b/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c +@@ -458,6 +458,7 @@ struct bcm2835_codec_ctx { + + struct bcm2835_codec_driver { + struct platform_device *pdev; ++ struct media_device mdev; + + struct bcm2835_codec_dev *encode; + struct bcm2835_codec_dev *decode; +@@ -2596,6 +2597,7 @@ static int bcm2835_codec_create(struct b + struct platform_device *pdev = drv->pdev; + struct bcm2835_codec_dev *dev; + struct video_device *vfd; ++ int function; + int video_nr; + int ret; + +@@ -2615,18 +2617,21 @@ static int bcm2835_codec_create(struct b + if (ret) + goto vchiq_finalise; + +- ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev); +- if (ret) +- goto vchiq_finalise; +- + atomic_set(&dev->num_inst, 0); + mutex_init(&dev->dev_mutex); + ++ /* Initialise the video device */ + dev->vfd = bcm2835_codec_videodev; ++ + vfd = &dev->vfd; + vfd->lock = &dev->dev_mutex; + vfd->v4l2_dev = &dev->v4l2_dev; + vfd->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING; ++ vfd->v4l2_dev->mdev = &drv->mdev; ++ ++ ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev); ++ if (ret) ++ goto vchiq_finalise; + + switch (role) { + case DECODE: +@@ -2634,11 +2639,13 @@ static int bcm2835_codec_create(struct b + v4l2_disable_ioctl(vfd, VIDIOC_TRY_ENCODER_CMD); + v4l2_disable_ioctl(vfd, VIDIOC_S_PARM); + v4l2_disable_ioctl(vfd, VIDIOC_G_PARM); ++ function = MEDIA_ENT_F_PROC_VIDEO_DECODER; + video_nr = decode_video_nr; + break; + case ENCODE: + v4l2_disable_ioctl(vfd, VIDIOC_DECODER_CMD); + v4l2_disable_ioctl(vfd, VIDIOC_TRY_DECODER_CMD); ++ function = MEDIA_ENT_F_PROC_VIDEO_ENCODER; + video_nr = encode_video_nr; + break; + case ISP: +@@ -2648,6 +2655,7 @@ static int bcm2835_codec_create(struct b + v4l2_disable_ioctl(vfd, VIDIOC_TRY_DECODER_CMD); + v4l2_disable_ioctl(vfd, VIDIOC_S_PARM); + v4l2_disable_ioctl(vfd, VIDIOC_G_PARM); ++ function = MEDIA_ENT_F_PROC_VIDEO_SCALER; + video_nr = isp_video_nr; + break; + default: +@@ -2676,6 +2684,10 @@ static int bcm2835_codec_create(struct b + goto err_m2m; + } + ++ ret = v4l2_m2m_register_media_controller(dev->m2m_dev, vfd, function); ++ if (ret) ++ goto err_m2m; ++ + v4l2_info(&dev->v4l2_dev, "Loaded V4L2 %s\n", + roles[role]); + return 0; +@@ -2697,6 +2709,7 @@ static int bcm2835_codec_destroy(struct + + v4l2_info(&dev->v4l2_dev, "Removing " MEM2MEM_NAME ", %s\n", + roles[dev->role]); ++ v4l2_m2m_unregister_media_controller(dev->m2m_dev); + v4l2_m2m_release(dev->m2m_dev); + video_unregister_device(&dev->vfd); + v4l2_device_unregister(&dev->v4l2_dev); +@@ -2708,6 +2721,7 @@ static int bcm2835_codec_destroy(struct + static int bcm2835_codec_probe(struct platform_device *pdev) + { + struct bcm2835_codec_driver *drv; ++ struct media_device *mdev; + int ret = 0; + + drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL); +@@ -2715,6 +2729,17 @@ static int bcm2835_codec_probe(struct pl + return -ENOMEM; + + drv->pdev = pdev; ++ mdev = &drv->mdev; ++ mdev->dev = &pdev->dev; ++ ++ strscpy(mdev->model, bcm2835_codec_videodev.name, sizeof(mdev->model)); ++ strscpy(mdev->serial, "0000", sizeof(mdev->serial)); ++ snprintf(mdev->bus_info, sizeof(mdev->bus_info), "platform:%s", ++ pdev->name); ++ ++ /* This should return the vgencmd version information or such .. */ ++ mdev->hw_revision = 1; ++ media_device_init(mdev); + + ret = bcm2835_codec_create(drv, &drv->decode, DECODE); + if (ret) +@@ -2728,6 +2753,10 @@ static int bcm2835_codec_probe(struct pl + if (ret) + goto out; + ++ /* Register the media device node */ ++ if (media_device_register(mdev) < 0) ++ goto out; ++ + platform_set_drvdata(pdev, drv); + + return 0; +@@ -2748,12 +2777,16 @@ static int bcm2835_codec_remove(struct p + { + struct bcm2835_codec_driver *drv = platform_get_drvdata(pdev); + ++ media_device_unregister(&drv->mdev); ++ + bcm2835_codec_destroy(drv->isp); + + bcm2835_codec_destroy(drv->encode); + + bcm2835_codec_destroy(drv->decode); + ++ media_device_cleanup(&drv->mdev); ++ + return 0; + } + |