From: Sakari Ailus <sakari.ailus@iki.fi>
To: Todor Tomov <todor.tomov@linaro.org>
Cc: mchehab@kernel.org, hans.verkuil@cisco.com,
javier@osg.samsung.com, s.nawrocki@samsung.com,
linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-msm@vger.kernel.org
Subject: Re: [PATCH v3 15/23] doc: media/v4l-drivers: Qualcomm Camera Subsystem - PIX Interface
Date: Thu, 20 Jul 2017 18:13:28 +0300 [thread overview]
Message-ID: <20170720151328.7ph3wlqszdiba72a@valkosipuli.retiisi.org.uk> (raw)
In-Reply-To: <1500287629-23703-16-git-send-email-todor.tomov@linaro.org>
On Mon, Jul 17, 2017 at 01:33:41PM +0300, Todor Tomov wrote:
> Update Qualcomm Camera Subsystem driver document for the PIX interface
> and format conversion support.
>
> Signed-off-by: Todor Tomov <todor.tomov@linaro.org>
> ---
> Documentation/media/v4l-drivers/qcom_camss.rst | 41 +++++++++++++++++++-------
> 1 file changed, 31 insertions(+), 10 deletions(-)
>
> diff --git a/Documentation/media/v4l-drivers/qcom_camss.rst b/Documentation/media/v4l-drivers/qcom_camss.rst
> index 4707ea7..4df5655 100644
> --- a/Documentation/media/v4l-drivers/qcom_camss.rst
> +++ b/Documentation/media/v4l-drivers/qcom_camss.rst
> @@ -45,12 +45,31 @@ Supported functionality
>
> The current version of the driver supports:
>
> -- input from camera sensor via CSIPHY;
> -- generation of test input data by the TG in CSID;
> -- raw dump of the input data to memory. RDI interface of VFE is supported.
> - PIX interface (ISP processing, statistics engines, resize/crop, format
> - conversion) is not supported in the current version;
> -- concurrent and independent usage of two data inputs - could be camera sensors
> +- Input from camera sensor via CSIPHY;
> +- Generation of test input data by the TG in CSID;
> +- RDI interface of VFE - raw dump of the input data to memory.
> +
> + Supported formats:
> +
> + - YUYV/UYVY/YVYU/VYUY (packed YUV 4:2:2);
> + - MIPI RAW8 (8bit Bayer RAW);
> + - MIPI RAW10 (10bit packed Bayer RAW);
> + - MIPI RAW12 (12bit packed Bayer RAW).
> +
> +- PIX interface of VFE
> +
> + - Format conversion of the input data.
> +
> + Supported input formats:
> +
> + - YUYV/UYVY/YVYU/VYUY (packed YUV 4:2:2).
> +
> + Supported output formats:
> +
> + - NV12/NV21 (two plane YUV 4:2:0);
> + - NV16/NV61 (two plane YUV 4:2:2).
Could you add V4L2 format names to these?
> +
> +- Concurrent and independent usage of two data inputs - could be camera sensors
> and/or TG.
>
>
> @@ -65,15 +84,15 @@ interface, the driver is split into V4L2 sub-devices as follows:
> - 2 CSID sub-devices - each CSID is represented by a single sub-device;
> - 2 ISPIF sub-devices - ISPIF is represented by a number of sub-devices equal
> to the number of CSID sub-devices;
> -- 3 VFE sub-devices - VFE is represented by a number of sub-devices equal to
> - the number of RDI input interfaces.
> +- 4 VFE sub-devices - VFE is represented by a number of sub-devices equal to
> + the number of the input interfaces (3 RDI and 1 PIX).
>
> The considerations to split the driver in this particular way are as follows:
>
> - representing CSIPHY and CSID modules by a separate sub-device for each module
> allows to model the hardware links between these modules;
> -- representing VFE by a separate sub-devices for each RDI input interface allows
> - to use the three RDI interfaces concurently and independently as this is
> +- representing VFE by a separate sub-devices for each input interface allows
> + to use the input interfaces concurently and independently as this is
> supported by the hardware;
> - representing ISPIF by a number of sub-devices equal to the number of CSID
> sub-devices allows to create linear media controller pipelines when using two
> @@ -99,6 +118,8 @@ nodes) is as follows:
> - msm_vfe0_video1
> - msm_vfe0_rdi2
> - msm_vfe0_video2
> +- msm_vfe0_pix
> +- msm_vfe0_video3
>
>
> Implementation
> --
> 2.7.4
>
--
Sakari Ailus
e-mail: sakari.ailus@iki.fi XMPP: sailus@retiisi.org.uk
next prev parent reply other threads:[~2017-07-20 15:13 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-17 10:33 [PATCH v3 00/23] Qualcomm 8x16 Camera Subsystem driver Todor Tomov
2017-07-17 10:33 ` [PATCH v3 01/23] [media] media: Make parameter of media_entity_remote_pad() const Todor Tomov
2017-07-17 10:33 ` [PATCH v3 02/23] [media] v4l2-mediabus: Add helper functions Todor Tomov
2017-07-17 10:33 ` [PATCH v3 03/23] v4l: Add packed Bayer raw12 pixel formats Todor Tomov
2017-07-17 10:33 ` [PATCH v3 04/23] dt-bindings: media: Binding document for Qualcomm Camera subsystem driver Todor Tomov
2017-07-20 10:13 ` Sakari Ailus
2017-08-04 11:54 ` Todor Tomov
2017-08-05 8:19 ` Sakari Ailus
2017-07-20 10:15 ` Sakari Ailus
2017-07-24 16:43 ` Rob Herring
2017-07-17 10:33 ` [PATCH v3 05/23] MAINTAINERS: Add " Todor Tomov
2017-07-17 10:33 ` [PATCH v3 06/23] doc: media/v4l-drivers: Add Qualcomm Camera Subsystem driver document Todor Tomov
2017-07-17 10:33 ` [PATCH v3 07/23] media: camss: Add CSIPHY files Todor Tomov
2017-07-20 12:15 ` Sakari Ailus
2017-07-17 10:33 ` [PATCH v3 08/23] media: camss: Add CSID files Todor Tomov
2017-07-20 14:13 ` Sakari Ailus
2017-07-17 10:33 ` [PATCH v3 09/23] media: camss: Add ISPIF files Todor Tomov
2017-07-20 14:51 ` Sakari Ailus
2017-07-17 10:33 ` [PATCH v3 10/23] media: camss: Add VFE files Todor Tomov
2017-07-20 14:59 ` Sakari Ailus
2017-07-25 14:02 ` Todor Tomov
2017-08-04 18:02 ` Sakari Ailus
2017-08-07 6:49 ` Todor Tomov
2017-07-17 10:33 ` [PATCH v3 11/23] media: camss: Add files which handle the video device nodes Todor Tomov
2017-07-17 10:33 ` [PATCH v3 12/23] media: camms: Add core files Todor Tomov
2017-07-19 10:44 ` Hans Verkuil
2017-07-17 10:33 ` [PATCH v3 13/23] media: camss: Enable building Todor Tomov
2017-07-19 13:17 ` kbuild test robot
2017-07-17 10:33 ` [PATCH v3 14/23] camss: vfe: Format conversion support using PIX interface Todor Tomov
2017-07-20 15:11 ` Sakari Ailus
2017-07-17 10:33 ` [PATCH v3 15/23] doc: media/v4l-drivers: Qualcomm Camera Subsystem - PIX Interface Todor Tomov
2017-07-20 15:13 ` Sakari Ailus [this message]
2017-07-17 10:33 ` [PATCH v3 16/23] camss: vfe: Support for frame padding Todor Tomov
2017-07-20 15:17 ` Sakari Ailus
2018-09-03 15:38 ` Todor Tomov
2018-09-13 15:04 ` Sakari Ailus
2017-07-17 10:33 ` [PATCH v3 17/23] camss: vfe: Add interface for scaling Todor Tomov
2017-07-20 15:20 ` Sakari Ailus
2017-07-25 15:36 ` Todor Tomov
2017-08-04 17:59 ` Sakari Ailus
2017-07-17 10:33 ` [PATCH v3 18/23] camss: vfe: Configure scaler module in VFE Todor Tomov
2017-07-17 10:33 ` [PATCH v3 19/23] camss: vfe: Add interface for cropping Todor Tomov
2017-07-17 10:33 ` [PATCH v3 20/23] camss: vfe: Configure crop module in VFE Todor Tomov
2017-07-17 10:33 ` [PATCH v3 21/23] doc: media/v4l-drivers: Qualcomm Camera Subsystem - Scale and crop Todor Tomov
2017-07-17 10:33 ` [PATCH v3 22/23] camss: Use optimal clock frequency rates Todor Tomov
2017-07-19 15:59 ` kbuild test robot
2017-07-21 7:55 ` Todor Tomov
2017-07-20 15:23 ` Sakari Ailus
2017-07-17 10:33 ` [PATCH v3 23/23] doc: media/v4l-drivers: Qualcomm Camera Subsystem - Media graph Todor Tomov
2017-07-19 10:54 ` [PATCH v3 00/23] Qualcomm 8x16 Camera Subsystem driver Hans Verkuil
2017-07-21 7:39 ` Todor Tomov
2017-07-31 9:20 ` Hans Verkuil
2017-07-20 15:25 ` Sakari Ailus
2017-07-21 7:50 ` Todor Tomov
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