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[84.238.221.29]) by smtp.gmail.com with ESMTPSA id a9sm3372903wmj.1.2021.04.29.03.58.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 29 Apr 2021 03:58:21 -0700 (PDT) From: Stanimir Varbanov To: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-api@vger.kernel.org Cc: Hans Verkuil , Mauro Carvalho Chehab , Stanimir Varbanov Subject: [PATCH 1/3] v4l: Add Qualcomm custom compressed pixel formats Date: Thu, 29 Apr 2021 13:58:13 +0300 Message-Id: <20210429105815.2790770-2-stanimir.varbanov@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210429105815.2790770-1-stanimir.varbanov@linaro.org> References: <20210429105815.2790770-1-stanimir.varbanov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Here we add custom Qualcomm raw compressed pixel formats. They are used in Qualcomm SoCs to optimaize the interconnect bandwidth. Signed-off-by: Stanimir Varbanov --- .../userspace-api/media/v4l/pixfmt-reserved.rst | 12 ++++++++++++ drivers/media/v4l2-core/v4l2-ioctl.c | 2 ++ include/uapi/linux/videodev2.h | 2 ++ 3 files changed, 16 insertions(+) -- 2.25.1 diff --git a/Documentation/userspace-api/media/v4l/pixfmt-reserved.rst b/Documentation/userspace-api/media/v4l/pixfmt-reserved.rst index 0b879c0da713..30b9cef4cbf0 100644 --- a/Documentation/userspace-api/media/v4l/pixfmt-reserved.rst +++ b/Documentation/userspace-api/media/v4l/pixfmt-reserved.rst @@ -260,6 +260,18 @@ please make a proposal on the linux-media mailing list. of tiles, resulting in 32-aligned resolutions for the luminance plane and 16-aligned resolutions for the chrominance plane (with 2x2 subsampling). + * .. _V4L2-PIX-FMT-QC8C: + + - ``V4L2_PIX_FMT_QC8C`` + - 'QC8C' + - Compressed Macro-tile 8Bit YUV420 format used by Qualcomm platforms. + The compression is lossless. It contains four planes. + * .. _V4L2-PIX-FMT-QC10C: + + - ``V4L2_PIX_FMT_QC10C`` + - 'QC10C' + - Compressed Macro-tile 10Bit YUV420 format used by Qualcomm platforms. + The compression is lossless. It contains four planes. .. raw:: latex diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c index 6a5d1c6d11d6..33ee12b97aa0 100644 --- a/drivers/media/v4l2-core/v4l2-ioctl.c +++ b/drivers/media/v4l2-core/v4l2-ioctl.c @@ -1455,6 +1455,8 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) 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_SUNXI_TILED_NV12: descr = "Sunxi Tiled NV12 Format"; break; + case V4L2_PIX_FMT_QC8C: descr = "QCOM Compressed 8bit Format"; break; + case V4L2_PIX_FMT_QC10C: descr = "QCOM Compressed 10bit Format"; break; default: if (fmt->description[0]) return; diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index 311a01cc5775..c57628a16cf4 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -737,6 +737,8 @@ struct v4l2_pix_format { #define V4L2_PIX_FMT_SUNXI_TILED_NV12 v4l2_fourcc('S', 'T', '1', '2') /* Sunxi Tiled NV12 Format */ #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_QC8C v4l2_fourcc('Q', '0', '8', 'C') /* Qualcomm 8-bit compressed */ +#define V4L2_PIX_FMT_QC10C v4l2_fourcc('Q', '1', '0', 'C') /* Qualcomm 10-bit compresed */ /* 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 */