New digital gain handling

.github/workflows/gen_orig.yml

@@ -0,0 +1,33 @@
+name: Generate source release tarball
+run-name: Generating source release tarball
+on:
+  push:
+    tags: # vX.Y.Z+rptYYYMMDD
+      - 'v[0-9]+.[0-9]+.[0-9]+\+rpt[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]'
+  workflow_dispatch:
+jobs:
+  publish_tarball:
+    permissions:
+      contents: write
+    runs-on: ubuntu-latest
+    steps:
+      - name: Install dependencies
+        run: | # Local cmake needs to be removed for pybind11 to be detected
+          sudo rm -rf /usr/local/bin/cmake
+          sudo apt-get update
+          sudo apt-get install -y meson pkgconf cmake libgtest-dev libyaml-dev python3 python3-dev pybind11-dev python3-jinja2 python3-ply python3-yaml
+      - name: Check out repository code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0 # Required for 'git describe' to work
+      - name: Generate tarball
+        run: |
+          meson setup build -Dpycamera=enabled
+          meson dist --no-tests --include-subprojects -C build
+          mv build/meson-dist/*.tar.xz "build/meson-dist/libcamera-${GITHUB_REF_NAME:1}.tar.xz"
+      - name: Release tarball
+        uses: softprops/action-gh-release@v1
+        with:
+          files: build/meson-dist/*.tar.xz
+      - if: failure()
+        run: cat build/meson-logs/meson-log.txt

Documentation/guides/pipeline-handler.rst

@@ -183,7 +183,7 @@ to the libcamera build options in the top level ``meson_options.txt``.
 
    option('pipelines',
            type : 'array',
-           choices : ['ipu3', 'rkisp1', 'rpi/vc4', 'simple', 'uvcvideo', 'vimc', 'vivid'],
+           choices : ['ipu3', 'rkisp1', 'rpi/pisp', 'rpi/vc4', 'simple', 'uvcvideo', 'vimc', 'vivid'],
            description : 'Select which pipeline handlers to include')
 
 

include/libcamera/internal/bayer_format.h

@@ -34,6 +34,8 @@ class BayerFormat
 		None = 0,
 		CSI2 = 1,
 		IPU3 = 2,
+		PISP1 = 3,
+		PISP2 = 4,
 	};
 
 	constexpr BayerFormat()

include/libcamera/ipa/meson.build

@@ -64,6 +64,7 @@ libcamera_generated_ipa_headers += custom_target('core_ipa_serializer_h',
 pipeline_ipa_mojom_mapping = {
     'ipu3': 'ipu3.mojom',
     'rkisp1': 'rkisp1.mojom',
+    'rpi/pisp': 'raspberrypi.mojom',
     'rpi/vc4': 'raspberrypi.mojom',
     'vimc': 'vimc.mojom',
 }

include/libcamera/meson.build

@@ -36,6 +36,8 @@ controls_map = {
     'controls': {
         'draft': 'control_ids_draft.yaml',
         'core': 'control_ids_core.yaml',
+        'rpi/pisp': 'control_ids_rpi.yaml',
+        'rpi/vc4': 'control_ids_rpi.yaml',
     },
 
     'properties': {

include/linux/drm_fourcc.h

@@ -174,6 +174,10 @@ extern "C" {
 #define DRM_FORMAT_RGBA1010102	fourcc_code('R', 'A', '3', '0') /* [31:0] R:G:B:A 10:10:10:2 little endian */
 #define DRM_FORMAT_BGRA1010102	fourcc_code('B', 'A', '3', '0') /* [31:0] B:G:R:A 10:10:10:2 little endian */
 
+/* 48 bpp RGB */
+#define DRM_FORMAT_RGB161616	fourcc_code('R', 'G', '4', '8') /* [48:0] R:G:B 16:16:16 little endian */
+#define DRM_FORMAT_BGR161616	fourcc_code('B', 'G', '4', '8') /* [48:0] R:G:B 16:16:16 little endian */
+
 /* 64 bpp RGB */
 #define DRM_FORMAT_XRGB16161616	fourcc_code('X', 'R', '4', '8') /* [63:0] x:R:G:B 16:16:16:16 little endian */
 #define DRM_FORMAT_XBGR16161616	fourcc_code('X', 'B', '4', '8') /* [63:0] x:B:G:R 16:16:16:16 little endian */
@@ -448,6 +452,7 @@ extern "C" {
 #define DRM_FORMAT_MOD_VENDOR_ALLWINNER 0x09
 #define DRM_FORMAT_MOD_VENDOR_AMLOGIC 0x0a
 #define DRM_FORMAT_MOD_VENDOR_MIPI 0x0b
+#define DRM_FORMAT_MOD_VENDOR_RPI 0x0c
 
 /* add more to the end as needed */
 
@@ -1554,6 +1559,10 @@ drm_fourcc_canonicalize_nvidia_format_mod(__u64 modifier)
  */
 #define MIPI_FORMAT_MOD_CSI2_PACKED fourcc_mod_code(MIPI, 1)
 
+#define PISP_FORMAT_MOD_COMPRESS_MODE1 fourcc_mod_code(RPI, 1)
+#define PISP_FORMAT_MOD_COMPRESS_MODE2 fourcc_mod_code(RPI, 2)
+#define PISP_FORMAT_MOD_VERIFICATION fourcc_mod_code(RPI, 3)
+
 #if defined(__cplusplus)
 }
 #endif

include/linux/media-bus-format.h

@@ -88,6 +88,7 @@
 #define MEDIA_BUS_FMT_YUYV12_2X12		0x201e
 #define MEDIA_BUS_FMT_YVYU12_2X12		0x201f
 #define MEDIA_BUS_FMT_Y14_1X14			0x202d
+#define MEDIA_BUS_FMT_Y16_1X16			0x202e
 #define MEDIA_BUS_FMT_UYVY8_1X16		0x200f
 #define MEDIA_BUS_FMT_VYUY8_1X16		0x2010
 #define MEDIA_BUS_FMT_YUYV8_1X16		0x2011

include/linux/videodev2.h

@@ -550,6 +550,10 @@ struct v4l2_pix_format {
 #define V4L2_PIX_FMT_ARGB32  v4l2_fourcc('B', 'A', '2', '4') /* 32  ARGB-8-8-8-8  */
 #define V4L2_PIX_FMT_XRGB32  v4l2_fourcc('B', 'X', '2', '4') /* 32  XRGB-8-8-8-8  */
 
+/* RGB formats (6 bytes per pixel) */
+#define V4L2_PIX_FMT_BGR48 v4l2_fourcc('B', 'G', 'R', '6') /* 16  BGR-16-16-16 */
+#define V4L2_PIX_FMT_RGB48 v4l2_fourcc('R', 'G', 'B', '6') /* 16  RGB-16-16-16 */
+
 /* Grey formats */
 #define V4L2_PIX_FMT_GREY    v4l2_fourcc('G', 'R', 'E', 'Y') /*  8  Greyscale     */
 #define V4L2_PIX_FMT_Y4      v4l2_fourcc('Y', '0', '4', ' ') /*  4  Greyscale     */
@@ -752,6 +756,19 @@ struct v4l2_pix_format {
 #define V4L2_PIX_FMT_IPU3_SGRBG10	v4l2_fourcc('i', 'p', '3', 'G') /* IPU3 packed 10-bit GRBG bayer */
 #define V4L2_PIX_FMT_IPU3_SRGGB10	v4l2_fourcc('i', 'p', '3', 'r') /* IPU3 packed 10-bit RGGB bayer */
 
+/* The pixel format for all our buffers (the precise format is found in the config buffer). */
+#define V4L2_PIX_FMT_RPI_BE		v4l2_fourcc('R', 'P', 'B', 'P')
+#define V4L2_PIX_FMT_PISP_COMP1_RGGB	v4l2_fourcc('P', 'C', '1', 'R')
+#define V4L2_PIX_FMT_PISP_COMP1_GRBG	v4l2_fourcc('P', 'C', '1', 'G')
+#define V4L2_PIX_FMT_PISP_COMP1_GBRG	v4l2_fourcc('P', 'C', '1', 'g')
+#define V4L2_PIX_FMT_PISP_COMP1_BGGR	v4l2_fourcc('P', 'C', '1', 'B')
+#define V4L2_PIX_FMT_PISP_COMP1_MONO	v4l2_fourcc('P', 'C', '1', 'M')
+#define V4L2_PIX_FMT_PISP_COMP2_RGGB	v4l2_fourcc('P', 'C', '2', 'R')
+#define V4L2_PIX_FMT_PISP_COMP2_GRBG	v4l2_fourcc('P', 'C', '2', 'G')
+#define V4L2_PIX_FMT_PISP_COMP2_GBRG	v4l2_fourcc('P', 'C', '2', 'g')
+#define V4L2_PIX_FMT_PISP_COMP2_BGGR	v4l2_fourcc('P', 'C', '2', 'B')
+#define V4L2_PIX_FMT_PISP_COMP2_MONO	v4l2_fourcc('P', 'C', '2', 'M')
+
 /* SDR formats - used only for Software Defined Radio devices */
 #define V4L2_SDR_FMT_CU8          v4l2_fourcc('C', 'U', '0', '8') /* IQ u8 */
 #define V4L2_SDR_FMT_CU16LE       v4l2_fourcc('C', 'U', '1', '6') /* IQ u16le */
@@ -781,6 +798,15 @@ struct v4l2_pix_format {
 #define V4L2_META_FMT_RK_ISP1_PARAMS	v4l2_fourcc('R', 'K', '1', 'P') /* Rockchip ISP1 3A Parameters */
 #define V4L2_META_FMT_RK_ISP1_STAT_3A	v4l2_fourcc('R', 'K', '1', 'S') /* Rockchip ISP1 3A Statistics */
 
+/* The metadata format identifier for BE configuration buffers. */
+#define V4L2_META_FMT_RPI_BE_CFG v4l2_fourcc('R', 'P', 'B', 'C')
+
+/* The metadata format identifier for FE configuration buffers. */
+#define V4L2_META_FMT_RPI_FE_CFG v4l2_fourcc('R', 'P', 'F', 'C')
+
+/* The metadata format identifier for FE stats buffers. */
+#define V4L2_META_FMT_RPI_FE_STATS v4l2_fourcc('R', 'P', 'F', 'S')
+
 /* priv field value to indicates that subsequent fields are valid. */
 #define V4L2_PIX_FMT_PRIV_MAGIC		0xfeedcafe
 

meson.build

@@ -199,6 +199,7 @@ pipelines_support = {
     'imx8-isi':     arch_arm,
     'ipu3':         arch_x86,
     'rkisp1':       arch_arm,
+    'rpi/pisp':     arch_arm,
     'rpi/vc4':      arch_arm,
     'simple':       arch_arm,
     'uvcvideo':     ['any'],

meson_options.txt

@@ -27,7 +27,7 @@ option('gstreamer',
 
 option('ipas',
         type : 'array',
-        choices : ['ipu3', 'rkisp1', 'rpi/vc4', 'vimc'],
+        choices : ['ipu3', 'rkisp1', 'rpi/pisp', 'rpi/vc4', 'vimc'],
         description : 'Select which IPA modules to build')
 
 option('lc-compliance',
@@ -44,6 +44,7 @@ option('pipelines',
             'imx8-isi',
             'ipu3',
             'rkisp1',
+            'rpi/pisp',
             'rpi/vc4',
             'simple',
             'uvcvideo',