From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751457AbdGQKfM (ORCPT ); Mon, 17 Jul 2017 06:35:12 -0400 Received: from ns.mm-sol.com ([37.157.136.199]:36069 "EHLO extserv.mm-sol.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751396AbdGQKfF (ORCPT ); Mon, 17 Jul 2017 06:35:05 -0400 From: Todor Tomov To: mchehab@kernel.org, hans.verkuil@cisco.com, javier@osg.samsung.com, s.nawrocki@samsung.com, sakari.ailus@iki.fi, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org Cc: Todor Tomov Subject: [PATCH v3 15/23] doc: media/v4l-drivers: Qualcomm Camera Subsystem - PIX Interface Date: Mon, 17 Jul 2017 13:33:41 +0300 Message-Id: <1500287629-23703-16-git-send-email-todor.tomov@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1500287629-23703-1-git-send-email-todor.tomov@linaro.org> References: <1500287629-23703-1-git-send-email-todor.tomov@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Update Qualcomm Camera Subsystem driver document for the PIX interface and format conversion support. Signed-off-by: Todor Tomov --- 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). + +- 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