include: rkisp1: Update header for extensible parameters

Update the rkisp1-config.h header with the definitions for the
extensible parameters format introduced by:
c51fd5177b44 ("uapi: rkisp1-config: Add extensible parameters format")

Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>

1 files changed, 538 insertions, 0 deletions

diff --git a/include/linux/rkisp1-config.h b/include/linux/rkisp1-config.h
index f87c6bd4..b09fc824 100644
--- a/include/linux/rkisp1-config.h
+++ b/include/linux/rkisp1-config.h
@@ -996,4 +996,542 @@ struct rkisp1_stat_buffer {
 	struct rkisp1_cif_isp_stat params;
 };
 
+/*---------- PART3: Extensible Configuration Parameters  ------------*/
+
+enum rkisp1_ext_params_block_group {
+	RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS = (1 << 16),
+	RKISP1_EXT_PARAMS_BLOCK_GROUP_LSC = (2 << 16),
+	RKISP1_EXT_PARAMS_BLOCK_GROUP_MEAS = (4 << 16),
+};
+
+enum rkisp1_ext_params_block_id {
+	RKISP1_EXT_PARAMS_BLOCK_ID_BLS,
+	RKISP1_EXT_PARAMS_BLOCK_ID_DPCC,
+	RKISP1_EXT_PARAMS_BLOCK_ID_SDG,
+	RKISP1_EXT_PARAMS_BLOCK_ID_AWB_GAINS,
+	RKISP1_EXT_PARAMS_BLOCK_ID_FLT,
+	RKISP1_EXT_PARAMS_BLOCK_ID_BDM,
+	RKISP1_EXT_PARAMS_BLOCK_ID_CTK,
+	RKISP1_EXT_PARAMS_BLOCK_ID_GOC,
+	RKISP1_EXT_PARAMS_BLOCK_ID_DPF,
+	RKISP1_EXT_PARAMS_BLOCK_ID_DPF_STRENGHT,
+	RKISP1_EXT_PARAMS_BLOCK_ID_CPROC,
+	RKISP1_EXT_PARAMS_BLOCK_ID_IE,
+	RKISP1_EXT_PARAMS_BLOCK_ID_LSC,
+	RKISP1_EXT_PARAMS_BLOCK_ID_AWB_MEAS,
+	RKISP1_EXT_PARAMS_BLOCK_ID_HST_MEAS,
+	RKISP1_EXT_PARAMS_BLOCK_ID_AEC_MEAS,
+	RKISP1_EXT_PARAMS_BLOCK_ID_AFC_MEAS,
+	RKISP1_EXT_PARAMS_BLOCK_ID_SENTINEL,
+};
+
+/**
+ * enum rkisp1_ext_params_block_type - RkISP1 extensible params block type
+ *
+ * @RKISP1_EXT_PARAMS_BLOCK_TYPE_BLS: Black level subtraction
+ * @RKISP1_EXT_PARAMS_BLOCK_TYPE_DPCC: Defect pixel cluster correction
+ * @RKISP1_EXT_PARAMS_BLOCK_TYPE_SDG: Sensor de-gamma
+ * @RKISP1_EXT_PARAMS_BLOCK_TYPE_AWB_GAINS: Auto white balance gains
+ * @RKISP1_EXT_PARAMS_BLOCK_TYPE_FLT: ISP filtering
+ * @RKISP1_EXT_PARAMS_BLOCK_TYPE_BDM: Bayer de-mosaic
+ * @RKISP1_EXT_PARAMS_BLOCK_TYPE_CTK: Cross-talk correction
+ * @RKISP1_EXT_PARAMS_BLOCK_TYPE_GOC: Gamma out correction
+ * @RKISP1_EXT_PARAMS_BLOCK_TYPE_DPF: De-noise pre-filter
+ * @RKISP1_EXT_PARAMS_BLOCK_TYPE_DPF_STRENGHT: De-noise pre-filter strength
+ * @RKISP1_EXT_PARAMS_BLOCK_TYPE_CPROC: Color processing
+ * @RKISP1_EXT_PARAMS_BLOCK_TYPE_IE: Image effects
+ * @RKISP1_EXT_PARAMS_BLOCK_TYPE_LSC: Lens shading correction
+ * @RKISP1_EXT_PARAMS_BLOCK_TYPE_AWB_MEAS: Auto white balance statistics
+ * @RKISP1_EXT_PARAMS_BLOCK_TYPE_HST_MEAS: Histogram statistics
+ * @RKISP1_EXT_PARAMS_BLOCK_TYPE_AEC_MEAS: Auto exposure statistics
+ * @RKISP1_EXT_PARAMS_BLOCK_TYPE_AFC_MEAS: Auto-focus statistics
+ */
+enum rkisp1_ext_params_block_type {
+	/* "Other" block group types. */
+	RKISP1_EXT_PARAMS_BLOCK_TYPE_BLS = RKISP1_EXT_PARAMS_BLOCK_ID_BLS |
+					   RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS,
+	RKISP1_EXT_PARAMS_BLOCK_TYPE_DPCC =
+		RKISP1_EXT_PARAMS_BLOCK_ID_DPCC |
+		RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS,
+	RKISP1_EXT_PARAMS_BLOCK_TYPE_SDG = RKISP1_EXT_PARAMS_BLOCK_ID_SDG |
+					   RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS,
+	RKISP1_EXT_PARAMS_BLOCK_TYPE_AWB_GAINS =
+		RKISP1_EXT_PARAMS_BLOCK_ID_AWB_GAINS |
+		RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS,
+	RKISP1_EXT_PARAMS_BLOCK_TYPE_FLT = RKISP1_EXT_PARAMS_BLOCK_ID_FLT |
+					   RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS,
+	RKISP1_EXT_PARAMS_BLOCK_TYPE_BDM = RKISP1_EXT_PARAMS_BLOCK_ID_BDM |
+					   RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS,
+	RKISP1_EXT_PARAMS_BLOCK_TYPE_CTK = RKISP1_EXT_PARAMS_BLOCK_ID_CTK |
+					   RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS,
+	RKISP1_EXT_PARAMS_BLOCK_TYPE_GOC = RKISP1_EXT_PARAMS_BLOCK_ID_GOC |
+					   RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS,
+	RKISP1_EXT_PARAMS_BLOCK_TYPE_DPF = RKISP1_EXT_PARAMS_BLOCK_ID_DPF |
+					   RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS,
+	RKISP1_EXT_PARAMS_BLOCK_TYPE_DPF_STRENGHT =
+		RKISP1_EXT_PARAMS_BLOCK_ID_DPF_STRENGHT |
+		RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS,
+	RKISP1_EXT_PARAMS_BLOCK_TYPE_CPROC =
+		RKISP1_EXT_PARAMS_BLOCK_ID_CPROC |
+		RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS,
+	RKISP1_EXT_PARAMS_BLOCK_TYPE_IE = RKISP1_EXT_PARAMS_BLOCK_ID_IE |
+					  RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS,
+
+	/* "LSC" block group types. */
+	RKISP1_EXT_PARAMS_BLOCK_TYPE_LSC = RKISP1_EXT_PARAMS_BLOCK_ID_LSC |
+					   RKISP1_EXT_PARAMS_BLOCK_GROUP_LSC,
+
+	/* "Meas" block group types. */
+	RKISP1_EXT_PARAMS_BLOCK_TYPE_AWB_MEAS =
+		RKISP1_EXT_PARAMS_BLOCK_ID_AWB_MEAS |
+		RKISP1_EXT_PARAMS_BLOCK_GROUP_MEAS,
+	RKISP1_EXT_PARAMS_BLOCK_TYPE_HST_MEAS =
+		RKISP1_EXT_PARAMS_BLOCK_ID_HST_MEAS |
+		RKISP1_EXT_PARAMS_BLOCK_GROUP_MEAS,
+	RKISP1_EXT_PARAMS_BLOCK_TYPE_AEC_MEAS =
+		RKISP1_EXT_PARAMS_BLOCK_ID_AEC_MEAS |
+		RKISP1_EXT_PARAMS_BLOCK_GROUP_MEAS,
+	RKISP1_EXT_PARAMS_BLOCK_TYPE_AFC_MEAS =
+		RKISP1_EXT_PARAMS_BLOCK_ID_AFC_MEAS |
+		RKISP1_EXT_PARAMS_BLOCK_GROUP_MEAS,
+};
+
+/**
+ * enum rkisp1_ext_params_block_state - RkISP1 extensible parameter block enable
+ *					state flags
+ *
+ * @RKISP1_EXT_PARAMS_BLOCK_NO_CHANGE: Do not change the block power state
+ * @RKISP1_EXT_PARAMS_BLOCK_DISABLE: Disable the HW block
+ * @RKISP1_EXT_PARAMS_BLOCK_ENABLE: Enable the HW block
+ */
+enum rkisp1_ext_params_block_state {
+	RKISP1_EXT_PARAMS_BLOCK_NO_CHANGE,
+	RKISP1_EXT_PARAMS_BLOCK_DISABLE,
+	RKISP1_EXT_PARAMS_BLOCK_ENABLE,
+};
+
+/**
+ * struct rkisp1_ext_params_block_header - RkISP1 extensible parameter block
+ *					   header
+ *
+ * This structure represents the common part of all the ISP configuration
+ * blocks. Each parameters block shall embed an instance of this structure type
+ * as its first member, followed by the block-specific configuration data. The
+ * driver inspects this common header to discern the block type and its size and
+ * properly handle the block content by casting it to the correct block-specific
+ * type.
+ *
+ * The @type field is one of the values enumerated by
+ * :c:type:`rkisp1_ext_params_block_type` and specifies how the data should be
+ * interpreted by the driver. The @size field specifies the size of the
+ * parameters block and is used by the driver for validation purposes.
+ *
+ * The @state field specifies if the ISP block power state should be changed,
+ * and, if it has to, if it has to be enabled to disabled. The possible
+ * states are enumerated by :c:type:`rkisp1_ext_params_block_state`.
+ * When userspace needs to configure and enable an ISP block it shall fully
+ * populate the block configuration and the @state flag shall be set to
+ * RKISP1_EXT_PARAMS_BLOCK_ENABLE. When userspace simply wants to disable the
+ * ISP block the @state flag shall be set to RKISP1_EXT_PARAMS_BLOCK_DISABLE. If
+ * a new configuration of an ISP block should be applied but the power state
+ * doesn't need to be changed, userspace shall fully populate the ISP block
+ * configuration and the @state flag shall be set to
+ * RKISP1_EXT_PARAMS_BLOCK_NO_CHANGE.
+ *
+ * Userspace is responsible for correctly populating the parameters block header
+ * fields (@type, @state and @size) and correctly populate the block-specific
+ * parameters.
+ *
+ * For example:
+ *
+ * .. code-block:: c
+ *
+ *	void populate_bls(struct rkisp1_ext_params_block_header *block) {
+ *		struct rkisp1_ext_params_bls_config *bls =
+ *			(struct rkisp1_ext_params_bls_config *)block;
+ *
+ *		block->header.type = RKISP1_EXT_PARAMS_BLOCK_ID_BLS;
+ *		block->header.state = RKISP1_EXT_PARAMS_BLOCK_ENABLE;
+ *		block->header.size = sizeof(struct rkisp1_ext_params_bls_config);
+ *
+ *		bls->bls_config.enable_auto = 0;
+ *		bls->bls_config.fixed_val.r = blackLevelRed_;
+ *		bls->bls_config.fixed_val.gr = blackLevelGreenR_;
+ *		bls->bls_config.fixed_val.gb = blackLevelGreenB_;
+ *		bls->bls_config.fixed_val.b = blackLevelBlue_;
+ *	}
+ *
+ * @type: The parameters block type, see
+ *	  :c:type:`rkisp1_ext_params_block_type`
+ * @state: The block enable state flag, see
+ *	   :c:type:`rkisp1_ext_params_block_state`
+ * @size: Size (in bytes) of the parameters block, including this header
+ */
+struct rkisp1_ext_params_block_header {
+	__u32 type;
+	__u32 state;
+	__u64 size;
+};
+
+/**
+ * struct rkisp1_ext_params_bls_config - RkISP1 extensible params BLS config
+ *
+ * RkISP1 extensible parameters Black Level Subtraction configuration block
+ *
+ * @header: The RkISP1 extensible parameters header, see
+ *	    :c:type:`rkisp1_ext_params_block_header`
+ * @bls_config: Black Level Subtraction configuration, see
+ *		:c:type:`rkisp1_cif_isp_bls_config`
+ */
+struct rkisp1_ext_params_bls_config {
+	struct rkisp1_ext_params_block_header header;
+	struct rkisp1_cif_isp_bls_config bls_config;
+};
+
+/**
+ * struct rkisp1_ext_params_dpcc_config - RkISP1 extensible params DPCC config
+ *
+ * RkISP1 extensible parameters Defective Pixel Cluster Correction configuration
+ * block
+ *
+ * @header: The RkISP1 extensible parameters header, see
+ *	    :c:type:`rkisp1_ext_params_block_header`
+ * @dpcc_config: Defective Pixel Cluster Correction configuration, see
+ *		 :c:type:`rkisp1_cif_isp_dpcc_config`
+ */
+struct rkisp1_ext_params_dpcc_config {
+	struct rkisp1_ext_params_block_header header;
+	struct rkisp1_cif_isp_dpcc_config dpcc_config;
+};
+
+/**
+ * struct rkisp1_ext_params_sdg_config - RkISP1 extensible params SDG config
+ *
+ * RkISP1 extensible parameters Sensor Degamma configuration block
+ *
+ * @header: The RkISP1 extensible parameters header, see
+ *	    :c:type:`rkisp1_ext_params_block_header`
+ * @sdg_config: Sensor Degamma configuration, see
+ *		:c:type:`rkisp1_cif_isp_sdg_config`
+ */
+struct rkisp1_ext_params_sdg_config {
+	struct rkisp1_ext_params_block_header header;
+	struct rkisp1_cif_isp_sdg_config sdg_config;
+};
+
+/**
+ * struct rkisp1_ext_params_lsc_config - RkISP1 extensible params LSC config
+ *
+ * RkISP1 extensible parameters Lens Shading Correction configuration block
+ *
+ * @header: The RkISP1 extensible parameters header, see
+ *	    :c:type:`rkisp1_ext_params_block_header`
+ * @lsc_config: Lens Shading Correction configuration, see
+ *		:c:type:`rkisp1_cif_isp_lsc_config`
+ */
+struct rkisp1_ext_params_lsc_config {
+	struct rkisp1_ext_params_block_header header;
+	struct rkisp1_cif_isp_lsc_config lsc_config;
+};
+
+/**
+ * struct rkisp1_ext_params_awb_gain_config - RkISP1 extensible params AWB
+ *					      gain config
+ *
+ * RkISP1 extensible parameters Auto-White Balance Gains configuration block
+ *
+ * @header: The RkISP1 extensible parameters header, see
+ *	    :c:type:`rkisp1_ext_params_block_header`
+ * @awb_config: Auto-White Balance Gains configuration, see
+ *		:c:type:`rkisp1_cif_isp_awb_gain_config`
+ */
+struct rkisp1_ext_params_awb_gain_config {
+	struct rkisp1_ext_params_block_header header;
+	struct rkisp1_cif_isp_awb_gain_config awb_config;
+};
+
+/**
+ * struct rkisp1_ext_params_flt_config - RkISP1 extensible params FLT config
+ *
+ * RkISP1 extensible parameters Filter configuration block
+ *
+ * @header: The RkISP1 extensible parameters header, see
+ *	    :c:type:`rkisp1_ext_params_block_header`
+ * @flt_config: Filter configuration, see
+ *		:c:type:`rkisp1_cif_isp_flt_config`
+ */
+struct rkisp1_ext_params_flt_config {
+	struct rkisp1_ext_params_block_header header;
+	struct rkisp1_cif_isp_flt_config flt_config;
+};
+
+/**
+ * struct rkisp1_ext_params_bdm_config - RkISP1 extensible params BDM config
+ *
+ * RkISP1 extensible parameters Demosaicing configuration block
+ *
+ * @header: The RkISP1 extensible parameters header, see
+ *	    :c:type:`rkisp1_ext_params_block_header`
+ * @bdm_config: Demosaicing configuration, see
+ *		:c:type:`rkisp1_cif_isp_bdm_config`
+ */
+struct rkisp1_ext_params_bdm_config {
+	struct rkisp1_ext_params_block_header header;
+	struct rkisp1_cif_isp_bdm_config bdm_config;
+};
+
+/**
+ * struct rkisp1_ext_params_ctk_config - RkISP1 extensible params CTK config
+ *
+ * RkISP1 extensible parameters Cross-Talk configuration block
+ *
+ * @header: The RkISP1 extensible parameters header, see
+ *	    :c:type:`rkisp1_ext_params_block_header`
+ * @ctk_config: Cross-Talk configuration, see
+ *		:c:type:`rkisp1_cif_isp_ctk_config`
+ */
+struct rkisp1_ext_params_ctk_config {
+	struct rkisp1_ext_params_block_header header;
+	struct rkisp1_cif_isp_ctk_config ctk_config;
+};
+
+/**
+ * struct rkisp1_ext_params_goc_config - RkISP1 extensible params GOC config
+ *
+ * RkISP1 extensible parameters Gamma-Out configuration block
+ *
+ * @header: The RkISP1 extensible parameters header, see
+ *	    :c:type:`rkisp1_ext_params_block_header`
+ * @goc_config: Gamma-Out configuration, see
+ *		:c:type:`rkisp1_cif_isp_goc_config`
+ */
+struct rkisp1_ext_params_goc_config {
+	struct rkisp1_ext_params_block_header header;
+	struct rkisp1_cif_isp_goc_config goc_config;
+};
+
+/**
+ * struct rkisp1_ext_params_dpf_config - RkISP1 extensible params DPF config
+ *
+ * RkISP1 extensible parameters De-noise Pre-Filter configuration block
+ *
+ * @header: The RkISP1 extensible parameters header, see
+ *	    :c:type:`rkisp1_ext_params_block_header`
+ * @dpf_config: De-noise Pre-Filter configuration, see
+ *		:c:type:`rkisp1_cif_isp_dpf_config`
+ */
+struct rkisp1_ext_params_dpf_config {
+	struct rkisp1_ext_params_block_header header;
+	struct rkisp1_cif_isp_dpf_config dpf_config;
+};
+
+/**
+ * struct rkisp1_ext_params_dpf_strength_config - RkISP1 extensible params DPF
+ *						  strength config
+ *
+ * RkISP1 extensible parameters De-noise Pre-Filter strength configuration block
+ *
+ * @header: The RkISP1 extensible parameters header, see
+ *	    :c:type:`rkisp1_ext_params_block_header`
+ * @dpf_strength_config: De-noise Pre-Filter strength configuration, see
+ *			 :c:type:`rkisp1_cif_isp_dpf_strength_config`
+ */
+struct rkisp1_ext_params_dpf_strength_config {
+	struct rkisp1_ext_params_block_header header;
+	struct rkisp1_cif_isp_dpf_strength_config dpf_strength_config;
+};
+
+/**
+ * struct rkisp1_ext_params_cproc_config - RkISP1 extensible params CPROC config
+ *
+ * RkISP1 extensible parameters Color Processing configuration block
+ *
+ * @header: The RkISP1 extensible parameters header, see
+ *	    :c:type:`rkisp1_ext_params_block_header`
+ * @cproc_config: Color processing configuration, see
+ *		  :c:type:`rkisp1_cif_isp_cproc_config`
+ */
+struct rkisp1_ext_params_cproc_config {
+	struct rkisp1_ext_params_block_header header;
+	struct rkisp1_cif_isp_cproc_config cproc_config;
+};
+
+/**
+ * struct rkisp1_ext_params_ie_config - RkISP1 extensible params IE config
+ *
+ * RkISP1 extensible parameters Image Effect configuration block
+ *
+ * @header: The RkISP1 extensible parameters header, see
+ *	    :c:type:`rkisp1_ext_params_block_header`
+ * @ie_config: Image Effect configuration, see
+ *	       :c:type:`rkisp1_cif_isp_ie_config`
+ */
+struct rkisp1_ext_params_ie_config {
+	struct rkisp1_ext_params_block_header header;
+	struct rkisp1_cif_isp_ie_config ie_config;
+};
+
+/**
+ * struct rkisp1_ext_params_awb_meas_config - RkISP1 extensible params AWB
+ *					      Meas config
+ *
+ * RkISP1 extensible parameters Auto-White Balance Measurement configuration
+ * block
+ *
+ * @header: The RkISP1 extensible parameters header, see
+ *	    :c:type:`rkisp1_ext_params_block_header`
+ * @awb_meas_config: Auto-White Balance measure configuration, see
+ *		     :c:type:`rkisp1_cif_isp_awb_meas_config`
+ */
+struct rkisp1_ext_params_awb_meas_config {
+	struct rkisp1_ext_params_block_header header;
+	struct rkisp1_cif_isp_awb_meas_config awb_meas_config;
+};
+
+/**
+ * struct rkisp1_ext_params_hst_config - RkISP1 extensible params Histogram config
+ *
+ * RkISP1 extensible parameters Histogram statistics configuration block
+ *
+ * @header: The RkISP1 extensible parameters header, see
+ *	    :c:type:`rkisp1_ext_params_block_header`
+ * @hst_config: Histogram statistics configuration, see
+ *		:c:type:`rkisp1_cif_isp_hst_config`
+ */
+struct rkisp1_ext_params_hst_config {
+	struct rkisp1_ext_params_block_header header;
+	struct rkisp1_cif_isp_hst_config hst_config;
+};
+
+/**
+ * struct rkisp1_ext_params_aec_config - RkISP1 extensible params AEC config
+ *
+ * RkISP1 extensible parameters Auto-Exposure statistics configuration block
+ *
+ * @header: The RkISP1 extensible parameters header, see
+ *	    :c:type:`rkisp1_ext_params_block_header`
+ * @aec_config: Auto-Exposure statistics configuration, see
+ *		:c:type:`rkisp1_cif_isp_aec_config`
+ */
+struct rkisp1_ext_params_aec_config {
+	struct rkisp1_ext_params_block_header header;
+	struct rkisp1_cif_isp_aec_config aec_config;
+};
+
+/**
+ * struct rkisp1_ext_params_afc_config - RkISP1 extensible params AFC config
+ *
+ * RkISP1 extensible parameters Auto-Focus statistics configuration block
+ *
+ * @header: The RkISP1 extensible parameters header, see
+ *	    :c:type:`rkisp1_ext_params_block_header`
+ * @afc_config: Auto-Focus statistics configuration, see
+ *		:c:type:`rkisp1_cif_isp_afc_config`
+ */
+struct rkisp1_ext_params_afc_config {
+	struct rkisp1_ext_params_block_header header;
+	struct rkisp1_cif_isp_afc_config afc_config;
+};
+
+#define RKISP1_EXT_PARAMS_MAX_SIZE					\
+	sizeof(struct rkisp1_ext_params_bls_config)			+\
+	sizeof(struct rkisp1_ext_params_dpcc_config)			+\
+	sizeof(struct rkisp1_ext_params_sdg_config)			+\
+	sizeof(struct rkisp1_ext_params_lsc_config)			+\
+	sizeof(struct rkisp1_ext_params_awb_gain_config)		+\
+	sizeof(struct rkisp1_ext_params_flt_config)			+\
+	sizeof(struct rkisp1_ext_params_bdm_config)			+\
+	sizeof(struct rkisp1_ext_params_ctk_config)			+\
+	sizeof(struct rkisp1_ext_params_goc_config)			+\
+	sizeof(struct rkisp1_ext_params_dpf_config)			+\
+	sizeof(struct rkisp1_ext_params_dpf_strength_config)		+\
+	sizeof(struct rkisp1_ext_params_cproc_config)			+\
+	sizeof(struct rkisp1_ext_params_ie_config)			+\
+	sizeof(struct rkisp1_ext_params_awb_meas_config)		+\
+	sizeof(struct rkisp1_ext_params_hst_config)			+\
+	sizeof(struct rkisp1_ext_params_aec_config)			+\
+	sizeof(struct rkisp1_ext_params_afc_config)
+
+/**
+ * enum rksip1_ext_param_buffer_version - RkISP1 extensible parameters version
+ *
+ * @RKISP1_EXT_PARAM_BUFFER_V1: First version of RkISP1 extensible parameters
+ */
+enum rksip1_ext_param_buffer_version {
+	RKISP1_EXT_PARAM_BUFFER_V1 = 1,
+};
+
+/**
+ * struct rkisp1_ext_params_cfg - RkISP1 extensible parameters configuration
+ *
+ * This struct contains the configuration parameters of the RkISP1 ISP
+ * algorithms, serialized by userspace into a data buffer. Each configuration
+ * parameter block is represented by a block-specific structure which contains a
+ * :c:type:`rkisp1_ext_params_block_header` entry as first member. Userspace
+ * populates the @data buffer with configuration parameters for the blocks that
+ * it intends to configure. As a consequence, the data buffer effective size
+ * changes according to the number of ISP blocks that userspace intends to
+ * configure and is set by userspace in the @total_size field.
+ *
+ * The parameters buffer is versioned by the @version field to allow modifying
+ * and extending its definition. Userspace shall populate the @version field to
+ * inform the driver about the version it intends to use. The driver will parse
+ * and handle the @data buffer according to the data layout specific to the
+ * indicated version and return an error if the desired version is not
+ * supported.
+ *
+ * For each ISP block that userspace wants to configure, a block-specific
+ * structure is appended to the @data buffer, one after the other without gaps
+ * in between nor overlaps. Userspace shall populate the @total_size field with
+ * the effective size, in bytes, of the @data buffer.
+ *
+ * The expected memory layout of the parameters buffer is::
+ *
+ *	+-------------------- struct rkisp1_ext_params_cfg -------------------+
+ *	| version = RKISP_EXT_PARAMS_BUFFER_V1;                               |
+ *	| total_size = sizeof(struct rkisp1_ext_params_bls_config)            |
+ *	|              sizeof(struct rkisp1_ext_params_dpcc_config);          |
+ *	| +------------------------- data  ---------------------------------+ |
+ *	| | +------------- struct rkisp1_ext_params_bls_config -----------+ | |
+ *	| | | +-------- struct rkisp1_ext_params_block_header  ---------+ | | |
+ *	| | | | type = RKISP1_EXT_PARAMS_BLOCK_TYPE_BLS;                | | | |
+ *	| | | | state = RKISP1_EXT_PARAMS_BLOCK_ENABLE;                 | | | |
+ *	| | | | size = sizeof(struct rkisp1_ext_params_bls_config);     | | | |
+ *	| | | +---------------------------------------------------------+ | | |
+ *	| | | +---------- struct rkisp1_cif_isp_bls_config -------------+ | | |
+ *	| | | | enable_auto = 0;                                        | | | |
+ *	| | | | fixed_val.r = 256;                                      | | | |
+ *	| | | | fixed_val.gr = 256;                                     | | | |
+ *	| | | | fixed_val.gb = 256;                                     | | | |
+ *	| | | | fixed_val.b = 256;                                      | | | |
+ *	| | | +---------------------------------------------------------+ | | |
+ *	| | +------------ struct rkisp1_ext_params_dpcc_config -----------+ | |
+ *	| | | +-------- struct rkisp1_ext_params_block_header  ---------+ | | |
+ *	| | | | type = RKISP1_EXT_PARAMS_BLOCK_TYPE_DPCC;               | | | |
+ *	| | | | state = RKISP1_EXT_PARAMS_BLOCK_ENABLE;                 | | | |
+ *	| | | | size = sizeof(struct rkisp1_ext_params_dpcc_config);    | | | |
+ *	| | | +---------------------------------------------------------+ | | |
+ *	| | | +---------- struct rkisp1_cif_isp_dpcc_config ------------+ | | |
+ *	| | | | mode = RKISP1_CIF_ISP_DPCC_MODE_STAGE1_ENABLE;          | | | |
+ *	| | | | output_mode =                                           | | | |
+ *	| | | |   RKISP1_CIF_ISP_DPCC_OUTPUT_MODE_STAGE1_INCL_G_CENTER; | | | |
+ *	| | | | set_use = ... ;                                         | | | |
+ *	| | | | ...  = ... ;                                            | | | |
+ *	| | | +---------------------------------------------------------+ | | |
+ *	| | +-------------------------------------------------------------+ | |
+ *	| +-----------------------------------------------------------------+ |
+ *	+---------------------------------------------------------------------+
+ *
+ * @version: The RkISP1 extensible parameters buffer version, see
+ *	     :c:type:`rksip1_ext_param_buffer_version`
+ * @total_size: The RkISP1 configuration data effective size, excluding this
+ *		header
+ * @data: The RkISP1 extensible configuration data blocks
+ */
+struct rkisp1_ext_params_cfg {
+	__u32 version;
+	__u64 total_size;
+	__u8 data[RKISP1_EXT_PARAMS_MAX_SIZE];
+};
+
 #endif /* _RKISP1_CONFIG_H */