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[84.238.221.60]) by smtp.gmail.com with ESMTPSA id i82sm15542900wma.23.2022.01.17.07.56.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 Jan 2022 07:56:26 -0800 (PST) From: Stanimir Varbanov To: linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-api@vger.kernel.org Cc: hverkuil-cisco@xs4all.nl, Stanimir Varbanov Subject: [PATCH v3 1/6] v4l: Add Qualcomm custom compressed pixel formats Date: Mon, 17 Jan 2022 17:55:54 +0200 Message-Id: <20220117155559.234026-2-stanimir.varbanov@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220117155559.234026-1-stanimir.varbanov@linaro.org> References: <20220117155559.234026-1-stanimir.varbanov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Add custom Qualcomm raw compressed pixel formats. They are used in Qualcomm SoCs to optimize the interconnect bandwidth. Signed-off-by: Stanimir Varbanov --- .../media/v4l/pixfmt-reserved.rst | 19 +++++++++++++++++++ drivers/media/v4l2-core/v4l2-ioctl.c | 2 ++ include/uapi/linux/videodev2.h | 2 ++ 3 files changed, 23 insertions(+) diff --git a/Documentation/userspace-api/media/v4l/pixfmt-reserved.rst b/Documentation/userspace-api/media/v4l/pixfmt-reserved.rst index 2f2133b4cd9c..929bd0dc0ba3 100644 --- a/Documentation/userspace-api/media/v4l/pixfmt-reserved.rst +++ b/Documentation/userspace-api/media/v4l/pixfmt-reserved.rst @@ -245,6 +245,25 @@ please make a proposal on the linux-media mailing list. - Non-compressed, tiled two-planar format used by Mediatek MT8183. This is an opaque intermediate format and the MDP3 hardware can be used to convert it to other formats. + * .. _V4L2-PIX-FMT-QC08C: + + - ``V4L2_PIX_FMT_QC08C`` + - 'QC08C' + - Compressed Macro-tile 8-Bit YUV420 format used by Qualcomm platforms. + It is an opaque intermediate format. The used compression is lossless + and it is used by various multimedia hardware blocks like GPU, display + controllers, ISP and video accelerators. + It contains four planes for progressive video and eight planes for + interlaced video. + * .. _V4L2-PIX-FMT-QC10C: + + - ``V4L2_PIX_FMT_QC10C`` + - 'QC10C' + - Compressed Macro-tile 10-Bit YUV420 format used by Qualcomm platforms. + It is an opaque intermediate format. The used compression is lossless + and it is used by various multimedia hardware blocks like GPU, display + controllers, ISP and video accelerators. + It contains four planes for progressive video. .. raw:: latex diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c index 9ac557b8e146..1b6462f9ad7e 100644 --- a/drivers/media/v4l2-core/v4l2-ioctl.c +++ b/drivers/media/v4l2-core/v4l2-ioctl.c @@ -1437,6 +1437,8 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) case V4L2_PIX_FMT_SE401: descr = "GSPCA SE401"; break; case V4L2_PIX_FMT_S5C_UYVY_JPG: descr = "S5C73MX interleaved UYVY/JPEG"; break; case V4L2_PIX_FMT_MT21C: descr = "Mediatek Compressed Format"; break; + case V4L2_PIX_FMT_QC08C: descr = "QCOM Compressed 8-bit Format"; break; + case V4L2_PIX_FMT_QC10C: descr = "QCOM Compressed 10-bit Format"; break; default: if (fmt->description[0]) return; diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index df8b9c486ba1..e710903185bd 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -744,6 +744,8 @@ struct v4l2_pix_format { #define V4L2_PIX_FMT_INZI v4l2_fourcc('I', 'N', 'Z', 'I') /* Intel Planar Greyscale 10-bit and Depth 16-bit */ #define V4L2_PIX_FMT_CNF4 v4l2_fourcc('C', 'N', 'F', '4') /* Intel 4-bit packed depth confidence information */ #define V4L2_PIX_FMT_HI240 v4l2_fourcc('H', 'I', '2', '4') /* BTTV 8-bit dithered RGB */ +#define V4L2_PIX_FMT_QC08C v4l2_fourcc('Q', '0', '8', 'C') /* Qualcomm 8-bit compressed */ +#define V4L2_PIX_FMT_QC10C v4l2_fourcc('Q', '1', '0', 'C') /* Qualcomm 10-bit compressed */ /* 10bit raw bayer packed, 32 bytes for every 25 pixels, last LSB 6 bits unused */ #define V4L2_PIX_FMT_IPU3_SBGGR10 v4l2_fourcc('i', 'p', '3', 'b') /* IPU3 packed 10-bit BGGR bayer */