| Message ID | 20210705053258.1614177-13-acourbot@chromium.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | media: mtk-vcodec: support for MT8183 decoder | expand |
On 05.07.21 07:32, Alexandre Courbot wrote: > From: Yunfei Dong <yunfei.dong@mediatek.com> > > The stateless API requires a media device for issuing requests. Add one > if we are being instantiated as a stateless decoder. > > Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com> > [acourbot: refactor, cleanup and split] > Co-developed-by: Alexandre Courbot <acourbot@chromium.org> > Signed-off-by: Alexandre Courbot <acourbot@chromium.org> > Reviewed-by: Tzung-Bi Shih <tzungbi@google.com> > --- > drivers/media/platform/Kconfig | 2 + > .../platform/mtk-vcodec/mtk_vcodec_dec_drv.c | 38 +++++++++++++++++++ > .../platform/mtk-vcodec/mtk_vcodec_drv.h | 2 + > 3 files changed, 42 insertions(+) > > diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig > index ae1468aa1b4e..aa277a19e275 100644 > --- a/drivers/media/platform/Kconfig > +++ b/drivers/media/platform/Kconfig > @@ -315,6 +315,8 @@ config VIDEO_MEDIATEK_VCODEC > select VIDEO_MEDIATEK_VCODEC_VPU if VIDEO_MEDIATEK_VPU > select VIDEO_MEDIATEK_VCODEC_SCP if MTK_SCP > select V4L2_H264 > + select MEDIA_CONTROLLER > + select MEDIA_CONTROLLER_REQUEST_API > help > Mediatek video codec driver provides HW capability to > encode and decode in a range of video formats on MT8173 > diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c > index 1460951f302c..c8a84fa11e4a 100644 > --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c > +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c > @@ -14,6 +14,7 @@ > #include <media/v4l2-event.h> > #include <media/v4l2-mem2mem.h> > #include <media/videobuf2-dma-contig.h> > +#include <media/v4l2-device.h> > > #include "mtk_vcodec_drv.h" > #include "mtk_vcodec_dec.h" > @@ -316,6 +317,30 @@ static int mtk_vcodec_probe(struct platform_device *pdev) > goto err_event_workq; > } > > + if (dev->vdec_pdata->uses_stateless_api) { > + dev->mdev_dec.dev = &pdev->dev; > + strscpy(dev->mdev_dec.model, MTK_VCODEC_DEC_NAME, > + sizeof(dev->mdev_dec.model)); > + > + media_device_init(&dev->mdev_dec); > + dev->mdev_dec.ops = &mtk_vcodec_media_ops; > + dev->v4l2_dev.mdev = &dev->mdev_dec; > + > + ret = v4l2_m2m_register_media_controller(dev->m2m_dev_dec, dev->vfd_dec, > + MEDIA_ENT_F_PROC_VIDEO_DECODER); > + if (ret) { > + mtk_v4l2_err("Failed to register media controller"); > + goto err_reg_cont; > + } > + > + ret = media_device_register(&dev->mdev_dec); > + if (ret) { > + mtk_v4l2_err("Failed to register media device"); > + goto err_media_reg; > + } > + > + mtk_v4l2_debug(0, "media registered as /dev/media%d", vfd_dec->num); the media's node minor is not vfd_dec->num > + } > ret = video_register_device(vfd_dec, VFL_TYPE_VIDEO, 0); > if (ret) { > mtk_v4l2_err("Failed to register video device"); > @@ -328,6 +353,12 @@ static int mtk_vcodec_probe(struct platform_device *pdev) > return 0; > > err_dec_reg: > + if (dev->vdec_pdata->uses_stateless_api) > + media_device_unregister(&dev->mdev_dec); > +err_media_reg: > + if (dev->vdec_pdata->uses_stateless_api) > + v4l2_m2m_unregister_media_controller(dev->m2m_dev_dec); > +err_reg_cont: > destroy_workqueue(dev->decode_workqueue); > err_event_workq: > v4l2_m2m_release(dev->m2m_dev_dec); > @@ -360,6 +391,13 @@ static int mtk_vcodec_dec_remove(struct platform_device *pdev) > > flush_workqueue(dev->decode_workqueue); > destroy_workqueue(dev->decode_workqueue); > + > + if (media_devnode_is_registered(dev->mdev_dec.devnode)) { > + media_device_unregister(&dev->mdev_dec); > + v4l2_m2m_unregister_media_controller(dev->m2m_dev_dec); > + media_device_cleanup(&dev->mdev_dec); > + } > + > if (dev->m2m_dev_dec) > v4l2_m2m_release(dev->m2m_dev_dec); > > diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h > index 8fb333a99a40..d4f840a7bbcb 100644 > --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h > +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h > @@ -389,6 +389,7 @@ struct mtk_vcodec_enc_pdata { > * struct mtk_vcodec_dev - driver data > * @v4l2_dev: V4L2 device to register video devices for. > * @vfd_dec: Video device for decoder > + * @mdev_dec: Media device for decoder > * @vfd_enc: Video device for encoder. > * > * @m2m_dev_dec: m2m device for decoder > @@ -426,6 +427,7 @@ struct mtk_vcodec_enc_pdata { > struct mtk_vcodec_dev { This structs has a lot of duplicated fields for enc/dec Since the device represents either a decoder or an encoder, I think all those dupliactes can be removed, so for example instead of having both 'dec_irq' and 'enc_irq' we can have just 'irq' Thanks, Dafna > struct v4l2_device v4l2_dev; > struct video_device *vfd_dec; > + struct media_device mdev_dec; > struct video_device *vfd_enc; > > struct v4l2_m2m_dev *m2m_dev_dec; >
On Tue, Jul 20, 2021 at 12:22 AM Dafna Hirschfeld <dafna.hirschfeld@collabora.com> wrote: > On 05.07.21 07:32, Alexandre Courbot wrote: > > + mtk_v4l2_debug(0, "media registered as /dev/media%d", vfd_dec->num); > the media's node minor is not vfd_dec->num IIUC, it should be vfd_dec->minor[1]. Will fix in the next version. [1]: https://elixir.bootlin.com/linux/v5.14-rc4/source/include/media/v4l2-dev.h#L243 > > struct mtk_vcodec_dev { > This structs has a lot of duplicated fields for enc/dec > Since the device represents either a decoder or an encoder, > I think all those dupliactes can be removed, so for example > instead of having both 'dec_irq' and 'enc_irq' we can have just 'irq' I understand the struct may contain duplicate fields. However I prefer to separate the refactor into another series. Would provide the fixes later.
diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig index ae1468aa1b4e..aa277a19e275 100644 --- a/drivers/media/platform/Kconfig +++ b/drivers/media/platform/Kconfig @@ -315,6 +315,8 @@ config VIDEO_MEDIATEK_VCODEC select VIDEO_MEDIATEK_VCODEC_VPU if VIDEO_MEDIATEK_VPU select VIDEO_MEDIATEK_VCODEC_SCP if MTK_SCP select V4L2_H264 + select MEDIA_CONTROLLER + select MEDIA_CONTROLLER_REQUEST_API help Mediatek video codec driver provides HW capability to encode and decode in a range of video formats on MT8173 diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c index 1460951f302c..c8a84fa11e4a 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c @@ -14,6 +14,7 @@ #include <media/v4l2-event.h> #include <media/v4l2-mem2mem.h> #include <media/videobuf2-dma-contig.h> +#include <media/v4l2-device.h> #include "mtk_vcodec_drv.h" #include "mtk_vcodec_dec.h" @@ -316,6 +317,30 @@ static int mtk_vcodec_probe(struct platform_device *pdev) goto err_event_workq; } + if (dev->vdec_pdata->uses_stateless_api) { + dev->mdev_dec.dev = &pdev->dev; + strscpy(dev->mdev_dec.model, MTK_VCODEC_DEC_NAME, + sizeof(dev->mdev_dec.model)); + + media_device_init(&dev->mdev_dec); + dev->mdev_dec.ops = &mtk_vcodec_media_ops; + dev->v4l2_dev.mdev = &dev->mdev_dec; + + ret = v4l2_m2m_register_media_controller(dev->m2m_dev_dec, dev->vfd_dec, + MEDIA_ENT_F_PROC_VIDEO_DECODER); + if (ret) { + mtk_v4l2_err("Failed to register media controller"); + goto err_reg_cont; + } + + ret = media_device_register(&dev->mdev_dec); + if (ret) { + mtk_v4l2_err("Failed to register media device"); + goto err_media_reg; + } + + mtk_v4l2_debug(0, "media registered as /dev/media%d", vfd_dec->num); + } ret = video_register_device(vfd_dec, VFL_TYPE_VIDEO, 0); if (ret) { mtk_v4l2_err("Failed to register video device"); @@ -328,6 +353,12 @@ static int mtk_vcodec_probe(struct platform_device *pdev) return 0; err_dec_reg: + if (dev->vdec_pdata->uses_stateless_api) + media_device_unregister(&dev->mdev_dec); +err_media_reg: + if (dev->vdec_pdata->uses_stateless_api) + v4l2_m2m_unregister_media_controller(dev->m2m_dev_dec); +err_reg_cont: destroy_workqueue(dev->decode_workqueue); err_event_workq: v4l2_m2m_release(dev->m2m_dev_dec); @@ -360,6 +391,13 @@ static int mtk_vcodec_dec_remove(struct platform_device *pdev) flush_workqueue(dev->decode_workqueue); destroy_workqueue(dev->decode_workqueue); + + if (media_devnode_is_registered(dev->mdev_dec.devnode)) { + media_device_unregister(&dev->mdev_dec); + v4l2_m2m_unregister_media_controller(dev->m2m_dev_dec); + media_device_cleanup(&dev->mdev_dec); + } + if (dev->m2m_dev_dec) v4l2_m2m_release(dev->m2m_dev_dec); diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h index 8fb333a99a40..d4f840a7bbcb 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h @@ -389,6 +389,7 @@ struct mtk_vcodec_enc_pdata { * struct mtk_vcodec_dev - driver data * @v4l2_dev: V4L2 device to register video devices for. * @vfd_dec: Video device for decoder + * @mdev_dec: Media device for decoder * @vfd_enc: Video device for encoder. * * @m2m_dev_dec: m2m device for decoder @@ -426,6 +427,7 @@ struct mtk_vcodec_enc_pdata { struct mtk_vcodec_dev { struct v4l2_device v4l2_dev; struct video_device *vfd_dec; + struct media_device mdev_dec; struct video_device *vfd_enc; struct v4l2_m2m_dev *m2m_dev_dec;