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(60-250-192-107.hinet-ip.hinet.net. [60.250.192.107]) by smtp.gmail.com with ESMTPSA id u9-20020a17090341c900b0017a0668befasm11400246ple.124.2022.11.22.00.57.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 22 Nov 2022 00:57:55 -0800 (PST) From: Marvin Lin To: mchehab@kernel.org, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Cc: openbmc@lists.ozlabs.org, avifishman70@gmail.com, tmaimon77@gmail.com, tali.perry1@gmail.com, kwliu@nuvoton.com, kflin@nuvoton.com, Marvin Lin , Nicolas Dufresne Subject: [PATCH v7 4/7] media: v4l: Add HEXTILE compressed format Date: Tue, 22 Nov 2022 16:57:21 +0800 Message-Id: <20221122085724.3245078-5-milkfafa@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221122085724.3245078-1-milkfafa@gmail.com> References: <20221122085724.3245078-1-milkfafa@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Add HEXTILE compressed format. This format is defined in Remote Framebuffer Protocol (RFC 6143) and is used by Encoding Compression Engine (ECE) present on Nuvoton NPCM SoCs. Signed-off-by: Marvin Lin Reviewed-by: Nicolas Dufresne --- Documentation/userspace-api/media/v4l/pixfmt-reserved.rst | 7 +++++++ drivers/media/v4l2-core/v4l2-ioctl.c | 1 + include/uapi/linux/videodev2.h | 1 + 3 files changed, 9 insertions(+) diff --git a/Documentation/userspace-api/media/v4l/pixfmt-reserved.rst b/Documentation/userspace-api/media/v4l/pixfmt-reserved.rst index 0ff68cd8cf62..b45d8aa2e8b0 100644 --- a/Documentation/userspace-api/media/v4l/pixfmt-reserved.rst +++ b/Documentation/userspace-api/media/v4l/pixfmt-reserved.rst @@ -258,6 +258,13 @@ please make a proposal on the linux-media mailing list. and it is used by various multimedia hardware blocks like GPU, display controllers, ISP and video accelerators. It contains four planes for progressive video. + * .. _V4L2-PIX-FMT-HEXTILE: + + - ``V4L2_PIX_FMT_HEXTILE`` + - 'HXTL' + - Compressed format used by Nuvoton NPCM video driver. This format is + defined in Remote Framebuffer Protocol (RFC 6143, chapter 7.7.4 Hextile + Encoding). .. raw:: latex \normalsize diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c index fddba75d9074..1dd68920cd76 100644 --- a/drivers/media/v4l2-core/v4l2-ioctl.c +++ b/drivers/media/v4l2-core/v4l2-ioctl.c @@ -1497,6 +1497,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) 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; + case V4L2_PIX_FMT_HEXTILE: descr = "Hextile Compressed Format"; break; default: if (fmt->description[0]) return; diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index 29da1f4b4578..1148546665cb 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -775,6 +775,7 @@ struct v4l2_pix_format { #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 */ +#define V4L2_PIX_FMT_HEXTILE v4l2_fourcc('H', 'X', 'T', 'L') /* Hextile compressed */ /* 10bit raw 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 */