[PATCH 02/10] platform/raspberrypi: vchiq-mmal: Support ISP parameters and stats

Jai Luthra jai.luthra at ideasonboard.com
Tue Jan 13 01:05:22 PST 2026


The ISP used on BCM2835 and derivative platforms is behind the VCHIQ
bus, where some parameters and statistics are accessed through the MMAL
layer.

So add the relevant structures, macros and enum values.

Signed-off-by: Jai Luthra <jai.luthra at ideasonboard.com>
---
 include/linux/raspberrypi/mmal-encodings.h  |  4 ++
 include/linux/raspberrypi/mmal-parameters.h | 86 +++++++++++++++++++++++++++++
 2 files changed, 90 insertions(+)

diff --git a/include/linux/raspberrypi/mmal-encodings.h b/include/linux/raspberrypi/mmal-encodings.h
index e15ae7b24f73fd055806e2e88e5eec0e1b8bfe9d..eadf2e9814082c861a93ae8119e8ecb27a2fb331 100644
--- a/include/linux/raspberrypi/mmal-encodings.h
+++ b/include/linux/raspberrypi/mmal-encodings.h
@@ -73,6 +73,10 @@
  */
 #define MMAL_ENCODING_EGL_IMAGE        MMAL_FOURCC('E', 'G', 'L', 'I')
 
+/** ISP image statistics format
+ */
+#define MMAL_ENCODING_BRCM_STATS       MMAL_FOURCC('S', 'T', 'A', 'T')
+
 /* }@ */
 
 /** \name Pre-defined audio encodings */
diff --git a/include/linux/raspberrypi/mmal-parameters.h b/include/linux/raspberrypi/mmal-parameters.h
index a0cdd28101f2dd67fd6b64ce1c95c0cbbfe15fc4..6ae5a7a1932c44a73bd482ae72e1191868871ea9 100644
--- a/include/linux/raspberrypi/mmal-parameters.h
+++ b/include/linux/raspberrypi/mmal-parameters.h
@@ -223,6 +223,64 @@ enum mmal_parameter_camera_type {
 	MMAL_PARAMETER_SHUTTER_SPEED,
 		/**< Takes a @ref MMAL_PARAMETER_AWB_GAINS_T */
 	MMAL_PARAMETER_CUSTOM_AWB_GAINS,
+		/**< Takes a @ref MMAL_PARAMETER_CAMERA_SETTINGS_T */
+	MMAL_PARAMETER_CAMERA_SETTINGS,
+		/**< Takes a @ref MMAL_PARAMETER_PRIVACY_INDICATOR_T */
+	MMAL_PARAMETER_PRIVACY_INDICATOR,
+		/**< Takes a @ref MMAL_PARAMETER_BOOLEAN_T */
+	MMAL_PARAMETER_VIDEO_DENOISE,
+		/**< Takes a @ref MMAL_PARAMETER_BOOLEAN_T */
+	MMAL_PARAMETER_STILLS_DENOISE,
+		/**< Takes a @ref MMAL_PARAMETER_CAMERA_ANNOTATE_T */
+	MMAL_PARAMETER_ANNOTATE,
+		/**< Takes a @ref MMAL_PARAMETER_STEREOSCOPIC_MODE_T */
+	MMAL_PARAMETER_STEREOSCOPIC_MODE,
+		/**< Takes a @ref MMAL_PARAMETER_CAMERA_INTERFACE_T */
+	MMAL_PARAMETER_CAMERA_INTERFACE,
+		/**< Takes a @ref MMAL_PARAMETER_CAMERA_CLOCKING_MODE_T */
+	MMAL_PARAMETER_CAMERA_CLOCKING_MODE,
+		/**< Takes a @ref MMAL_PARAMETER_CAMERA_RX_CONFIG_T */
+	MMAL_PARAMETER_CAMERA_RX_CONFIG,
+		/**< Takes a @ref MMAL_PARAMETER_CAMERA_RX_TIMING_T */
+	MMAL_PARAMETER_CAMERA_RX_TIMING,
+		/**< Takes a @ref MMAL_PARAMETER_UINT32_T */
+	MMAL_PARAMETER_DPF_CONFIG,
+
+	/* 0x50 */
+		/**< Takes a @ref MMAL_PARAMETER_UINT32_T */
+	MMAL_PARAMETER_JPEG_RESTART_INTERVAL,
+		/**< Takes a @ref MMAL_PARAMETER_UINT32_T */
+	MMAL_PARAMETER_CAMERA_ISP_BLOCK_OVERRIDE,
+		/**< Takes a @ref MMAL_PARAMETER_LENS_SHADING_T */
+	MMAL_PARAMETER_LENS_SHADING_OVERRIDE,
+		/**< Takes a @ref MMAL_PARAMETER_UINT32_T */
+	MMAL_PARAMETER_BLACK_LEVEL,
+		/**< Takes a @ref MMAL_PARAMETER_RESIZE_T */
+	MMAL_PARAMETER_RESIZE_PARAMS,
+		/**< Takes a @ref MMAL_PARAMETER_CROP_T */
+	MMAL_PARAMETER_CROP,
+		/**< Takes a @ref MMAL_PARAMETER_INT32_T */
+	MMAL_PARAMETER_OUTPUT_SHIFT,
+		/**< Takes a @ref MMAL_PARAMETER_INT32_T */
+	MMAL_PARAMETER_CCM_SHIFT,
+		/**< Takes a @ref MMAL_PARAMETER_CUSTOM_CCM_T */
+	MMAL_PARAMETER_CUSTOM_CCM,
+		/**< Takes a @ref MMAL_PARAMETER_RATIONAL_T */
+	MMAL_PARAMETER_ANALOG_GAIN,
+		/**< Takes a @ref MMAL_PARAMETER_RATIONAL_T */
+	MMAL_PARAMETER_DIGITAL_GAIN,
+		/**< Takes a @ref MMAL_PARAMETER_DENOISE_T */
+	MMAL_PARAMETER_DENOISE,
+		/**< Takes a @ref MMAL_PARAMETER_SHARPEN_T */
+	MMAL_PARAMETER_SHARPEN,
+		/**< Takes a @ref MMAL_PARAMETER_GEQ_T */
+	MMAL_PARAMETER_GEQ,
+		/**< Tales a @ref MMAP_PARAMETER_DPC_T */
+	MMAL_PARAMETER_DPC,
+		/**< Tales a @ref MMAP_PARAMETER_GAMMA_T */
+	MMAL_PARAMETER_GAMMA,
+		/**< Takes a @ref MMAL_PARAMETER_CDN_T */
+	MMAL_PARAMETER_CDN,
 };
 
 enum mmal_parameter_camera_config_timestamp_mode {
@@ -749,4 +807,32 @@ struct mmal_parameter_camera_info {
 				flashes[MMAL_PARAMETER_CAMERA_INFO_MAX_FLASHES];
 };
 
+enum mmal_parameter_ls_gain_format_type {
+	MMAL_PARAMETER_LS_GAIN_FORMAT_TYPE_U0P8_1 = 0,
+	MMAL_PARAMETER_LS_GAIN_FORMAT_TYPE_U1P7_0 = 1,
+	MMAL_PARAMETER_LS_GAIN_FORMAT_TYPE_U1P7_1 = 2,
+	MMAL_PARAMETER_LS_GAIN_FORMAT_TYPE_U2P6_0 = 3,
+	MMAL_PARAMETER_LS_GAIN_FORMAT_TYPE_U2P6_1 = 4,
+	MMAL_PARAMETER_LS_GAIN_FORMAT_TYPE_U3P5_0 = 5,
+	MMAL_PARAMETER_LS_GAIN_FORMAT_TYPE_U3P5_1 = 6,
+	MMAL_PARAMETER_LS_GAIN_FORMAT_TYPE_U4P10  = 7,
+	MMAL_PARAMETER_LS_GAIN_FORMAT_TYPE_DUMMY  = 0x7FFFFFFF
+};
+
+struct mmal_parameter_lens_shading_v2 {
+	u32 enabled;
+	u32 grid_cell_size;
+	u32 grid_width;
+	u32 grid_stride;
+	u32 grid_height;
+	u32 mem_handle_table;
+	u32 ref_transform;
+	u32 corner_sampled;
+	enum mmal_parameter_ls_gain_format_type gain_format;
+};
+
+struct mmal_parameter_crop {
+	struct vchiq_mmal_rect rect;
+};
+
 #endif

-- 
2.52.0




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