From mboxrd@z Thu Jan 1 00:00:00 1970 From: Maxime Ripard Subject: [RFC PATCH 18/20] lib: image-formats: Add v4l2 formats support Date: Tue, 19 Mar 2019 22:57:23 +0100 Message-ID: References: Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org To: Daniel Vetter , David Airlie , Maarten Lankhorst , Sean Paul , Maxime Ripard , Mauro Carvalho Chehab Cc: Sakari Ailus , Hans Verkuil , Laurent Pinchart , Thomas Petazzoni , Paul Kocialkowski , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org List-Id: dri-devel@lists.freedesktop.org V4L2 uses different fourcc's than DRM, and has a different set of formats. For now, let's add the v4l2 fourcc's for the already existing formats. Signed-off-by: Maxime Ripard --- include/linux/image-formats.h | 9 +++++- lib/image-formats.c | 67 ++++++++++++++++++++++++++++++++++++- 2 files changed, 76 insertions(+) diff --git a/include/linux/image-formats.h b/include/linux/image-formats.h index 53fd73a71b3d..fbc3a4501ebd 100644 --- a/include/linux/image-formats.h +++ b/include/linux/image-formats.h @@ -26,6 +26,13 @@ struct image_format_info { }; /** + * @v4l2_fmt: + * + * V4L2 4CC format identifier (V4L2_PIX_FMT_*) + */ + u32 v4l2_fmt; + + /** * @depth: * * Color depth (number of bits per pixel excluding padding bits), @@ -222,6 +229,8 @@ image_format_info_is_yuv_sampling_444(const struct image_format_info *info) const struct image_format_info *__image_format_drm_lookup(u32 drm); const struct image_format_info *image_format_drm_lookup(u32 drm); +const struct image_format_info *__image_format_v4l2_lookup(u32 v4l2); +const struct image_format_info *image_format_v4l2_lookup(u32 v4l2); unsigned int image_format_plane_cpp(const struct image_format_info *format, int plane); unsigned int image_format_plane_width(int width, diff --git a/lib/image-formats.c b/lib/image-formats.c index 9b9a73220c5d..39f1d38ae861 100644 --- a/lib/image-formats.c +++ b/lib/image-formats.c @@ -8,6 +8,7 @@ static const struct image_format_info formats[] = { { .drm_fmt = DRM_FORMAT_C8, + .v4l2_fmt = V4L2_PIX_FMT_GREY, .depth = 8, .num_planes = 1, .cpp = { 1, 0, 0 }, @@ -15,6 +16,7 @@ static const struct image_format_info formats[] = { .vsub = 1, }, { .drm_fmt = DRM_FORMAT_RGB332, + .v4l2_fmt = V4L2_PIX_FMT_RGB332, .depth = 8, .num_planes = 1, .cpp = { 1, 0, 0 }, @@ -29,6 +31,7 @@ static const struct image_format_info formats[] = { .vsub = 1, }, { .drm_fmt = DRM_FORMAT_XRGB4444, + .v4l2_fmt = V4L2_PIX_FMT_XRGB444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, @@ -57,6 +60,7 @@ static const struct image_format_info formats[] = { .vsub = 1, }, { .drm_fmt = DRM_FORMAT_ARGB4444, + .v4l2_fmt = V4L2_PIX_FMT_ARGB444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, @@ -89,6 +93,7 @@ static const struct image_format_info formats[] = { .has_alpha = true, }, { .drm_fmt = DRM_FORMAT_XRGB1555, + .v4l2_fmt = V4L2_PIX_FMT_XRGB555, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, @@ -117,6 +122,7 @@ static const struct image_format_info formats[] = { .vsub = 1, }, { .drm_fmt = DRM_FORMAT_ARGB1555, + .v4l2_fmt = V4L2_PIX_FMT_ARGB555, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, @@ -149,6 +155,7 @@ static const struct image_format_info formats[] = { .has_alpha = true, }, { .drm_fmt = DRM_FORMAT_RGB565, + .v4l2_fmt = V4L2_PIX_FMT_RGB565, .depth = 16, .num_planes = 1, .cpp = { 2, 0, 0 }, @@ -163,6 +170,7 @@ static const struct image_format_info formats[] = { .vsub = 1, }, { .drm_fmt = DRM_FORMAT_RGB888, + .v4l2_fmt = V4L2_PIX_FMT_RGB24, .depth = 24, .num_planes = 1, .cpp = { 3, 0, 0 }, @@ -170,6 +178,7 @@ static const struct image_format_info formats[] = { .vsub = 1, }, { .drm_fmt = DRM_FORMAT_BGR888, + .v4l2_fmt = V4L2_PIX_FMT_BGR24, .depth = 24, .num_planes = 1, .cpp = { 3, 0, 0 }, @@ -177,6 +186,7 @@ static const struct image_format_info formats[] = { .vsub = 1, }, { .drm_fmt = DRM_FORMAT_XRGB8888, + .v4l2_fmt = V4L2_PIX_FMT_XRGB32, .depth = 24, .num_planes = 1, .cpp = { 4, 0, 0 }, @@ -281,6 +291,7 @@ static const struct image_format_info formats[] = { .has_alpha = true, }, { .drm_fmt = DRM_FORMAT_ARGB8888, + .v4l2_fmt = V4L2_PIX_FMT_ARGB32, .depth = 32, .num_planes = 1, .cpp = { 4, 0, 0 }, @@ -361,6 +372,7 @@ static const struct image_format_info formats[] = { .has_alpha = true, }, { .drm_fmt = DRM_FORMAT_YUV410, + .v4l2_fmt = V4L2_PIX_FMT_YUV410, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, @@ -369,6 +381,7 @@ static const struct image_format_info formats[] = { .is_yuv = true, }, { .drm_fmt = DRM_FORMAT_YVU410, + .v4l2_fmt = V4L2_PIX_FMT_YVU410, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, @@ -393,6 +406,7 @@ static const struct image_format_info formats[] = { .is_yuv = true, }, { .drm_fmt = DRM_FORMAT_YUV420, + .v4l2_fmt = V4L2_PIX_FMT_YUV420M, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, @@ -401,6 +415,7 @@ static const struct image_format_info formats[] = { .is_yuv = true, }, { .drm_fmt = DRM_FORMAT_YVU420, + .v4l2_fmt = V4L2_PIX_FMT_YVU420M, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, @@ -409,6 +424,7 @@ static const struct image_format_info formats[] = { .is_yuv = true, }, { .drm_fmt = DRM_FORMAT_YUV422, + .v4l2_fmt = V4L2_PIX_FMT_YUV422M, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, @@ -417,6 +433,7 @@ static const struct image_format_info formats[] = { .is_yuv = true, }, { .drm_fmt = DRM_FORMAT_YVU422, + .v4l2_fmt = V4L2_PIX_FMT_YVU422M, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, @@ -425,6 +442,7 @@ static const struct image_format_info formats[] = { .is_yuv = true, }, { .drm_fmt = DRM_FORMAT_YUV444, + .v4l2_fmt = V4L2_PIX_FMT_YUV444M, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, @@ -433,6 +451,7 @@ static const struct image_format_info formats[] = { .is_yuv = true, }, { .drm_fmt = DRM_FORMAT_YVU444, + .v4l2_fmt = V4L2_PIX_FMT_YVU444M, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, @@ -441,6 +460,7 @@ static const struct image_format_info formats[] = { .is_yuv = true, }, { .drm_fmt = DRM_FORMAT_NV12, + .v4l2_fmt = V4L2_PIX_FMT_NV12, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, @@ -449,6 +469,7 @@ static const struct image_format_info formats[] = { .is_yuv = true, }, { .drm_fmt = DRM_FORMAT_NV21, + .v4l2_fmt = V4L2_PIX_FMT_NV21, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, @@ -457,6 +478,7 @@ static const struct image_format_info formats[] = { .is_yuv = true, }, { .drm_fmt = DRM_FORMAT_NV16, + .v4l2_fmt = V4L2_PIX_FMT_NV16, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, @@ -465,6 +487,7 @@ static const struct image_format_info formats[] = { .is_yuv = true, }, { .drm_fmt = DRM_FORMAT_NV61, + .v4l2_fmt = V4L2_PIX_FMT_NV61, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, @@ -473,6 +496,7 @@ static const struct image_format_info formats[] = { .is_yuv = true, }, { .drm_fmt = DRM_FORMAT_NV24, + .v4l2_fmt = V4L2_PIX_FMT_NV24, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, @@ -481,6 +505,7 @@ static const struct image_format_info formats[] = { .is_yuv = true, }, { .drm_fmt = DRM_FORMAT_NV42, + .v4l2_fmt = V4L2_PIX_FMT_NV42, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, @@ -489,6 +514,7 @@ static const struct image_format_info formats[] = { .is_yuv = true, }, { .drm_fmt = DRM_FORMAT_YUYV, + .v4l2_fmt = V4L2_PIX_FMT_YUYV, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, @@ -497,6 +523,7 @@ static const struct image_format_info formats[] = { .is_yuv = true, }, { .drm_fmt = DRM_FORMAT_YVYU, + .v4l2_fmt = V4L2_PIX_FMT_YVYU, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, @@ -505,6 +532,7 @@ static const struct image_format_info formats[] = { .is_yuv = true, }, { .drm_fmt = DRM_FORMAT_UYVY, + .v4l2_fmt = V4L2_PIX_FMT_UYVY, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, @@ -513,6 +541,7 @@ static const struct image_format_info formats[] = { .is_yuv = true, }, { .drm_fmt = DRM_FORMAT_VYUY, + .v4l2_fmt = V4L2_PIX_FMT_VYUY, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, @@ -632,6 +661,44 @@ const struct image_format_info *image_format_drm_lookup(u32 drm) EXPORT_SYMBOL(image_format_drm_lookup); /** + * __image_format_v4l2_lookup - query information for a given format + * @v4l2: V4L2 fourcc pixel format (V4L2_PIX_FMT_*) + * + * The caller should only pass a supported pixel format to this function. + * + * Returns: + * The instance of struct image_format_info that describes the pixel format, or + * NULL if the format is unsupported. + */ +const struct image_format_info *__image_format_v4l2_lookup(u32 v4l2) +{ + return __image_format_lookup(v4l2_fmt, v4l2); +} +EXPORT_SYMBOL(__image_format_v4l2_lookup); + +/** + * image_format_v4l2_lookup - query information for a given format + * @v4l2: V4L2 fourcc pixel format (V4L2_PIX_FMT_*) + * + * The caller should only pass a supported pixel format to this function. + * Unsupported pixel formats will generate a warning in the kernel log. + * + * Returns: + * The instance of struct image_format_info that describes the pixel format, or + * NULL if the format is unsupported. + */ +const struct image_format_info *image_format_v4l2_lookup(u32 v4l2) +{ + const struct image_format_info *format; + + format = __image_format_v4l2_lookup(v4l2); + + WARN_ON(!format); + return format; +} +EXPORT_SYMBOL(image_format_v4l2_lookup); + +/** * image_format_plane_cpp - determine the bytes per pixel value * @format: pointer to the image_format * @plane: plane index -- git-series 0.9.1