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+/* SPDX-License-Identifier: Apache-2.0 */
+/*
+ * Copyright (C) 2021, Google Inc.
+ *
+ * aiq_input_parameters.h - Intel IA Imaging library C++ wrapper
+ *
+ * AIQ Input Parameters container, manages the parameters and state for each
+ * algorithm.
+ */
+
+#include <ia_imaging/ia_aiq.h>
+
+#include <libcamera/ipa/ipu3_ipa_interface.h>
+
+#ifndef IPA_IPU3_AIQ_INPUT_PARAMETERS_H
+#define IPA_IPU3_AIQ_INPUT_PARAMETERS_H
+
+namespace libcamera::ipa::ipu3::aiq {
+
+static const unsigned int NUM_EXPOSURES = 1; /*!> Number of frames AIQ algorithm
+						  provides output for */
+
+/**
+ * \struct AiqInputParams
+ * The private structs are part of AE, AF and AWB input parameters.
+ * They need to separately be introduced to store the contents for
+ * the corresponding pointers.
+ */
+struct AiqInputParameters {
+	void init();
+	void reset();
+	int configure(const IPAConfigInfo &configInfo);
+	void setAeAwbAfDefaults();
+	AiqInputParameters &operator=(const AiqInputParameters &other);
+
+	ia_aiq_ae_input_params aeInputParams;
+	ia_aiq_af_input_params afParams;
+	ia_aiq_af_bracket_input_params afBracketParams;
+	ia_aiq_awb_input_params awbParams;
+	ia_aiq_gbce_input_params gbceParams;
+	ia_aiq_pa_input_params paParams;
+	ia_aiq_sa_input_params saParams;
+	ia_aiq_dsd_input_params dsdParams;
+
+	/**
+	 * We do not directly parse the AF region in the settings to the
+	 * afParams focus_rectangle.
+	 * The fillAfInputParams will output the AF region in this member.
+	 * The reason is that not all HW platforms will implement touch AF
+	 * by passing the focus rectangle to the AF algo. The current implementation
+	 * assume that AF will get AF statistics covering the whole image.
+	 * This is not always true.
+	 * Some platforms modify the statistic collection parameters instead. So
+	 * by modifying from where we get the statistics we can also achieve the
+	 * effect of touch focus.
+	 * It will be up to the PSL implementation to make use of the afRegion.
+	 */
+	/* \todo: Pull in the CameraWindow class if required */
+	//CameraWindow afRegion; /*!> AF region in IA_COORDINATE space parsed
+	//                             from capture request settings */
+	bool aeLock;
+	bool awbLock;
+	bool blackLevelLock;
+	/*
+	 * Manual color correction.
+	 * This will be used to overwrite the results of PA
+	 */
+	ia_aiq_color_channels manualColorGains;
+	float manualColorTransform[9];
+
+private:
+	/*!< ia_aiq_ae_input_params pointer contents */
+	ia_aiq_exposure_sensor_descriptor sensorDescriptor;
+	ia_rectangle exposureWindow;
+	ia_coordinate exposureCoordinate;
+	ia_aiq_ae_features aeFeatures;
+	ia_aiq_ae_manual_limits aeManualLimits;
+	long manual_exposure_time_us[NUM_EXPOSURES];
+	float manual_analog_gain[NUM_EXPOSURES];
+	short manual_iso[NUM_EXPOSURES];
+
+	/*!< ia_aiq_af_input_params pointer contents */
+	ia_aiq_manual_focus_parameters manualFocusParams;
+	ia_rectangle focusRect;
+
+	/*!< ia_aiq_awb_input_params pointer contents */
+	ia_aiq_awb_manual_cct_range manualCctRange;
+	ia_coordinate manualWhiteCoordinate;
+
+	/*!< ia_aiq_pa_input_params pointer contents */
+	ia_aiq_awb_results awbResults;
+	ia_aiq_color_channels colorGains;
+	ia_aiq_exposure_parameters exposureParams;
+
+	/*!< ia_aiq_sa_input_params pointer contents*/
+	ia_aiq_frame_params sensorFrameParams;
+};
+
+} /* namespace libcamera::ipa::ipu3::aiq */
+
+#endif /* IPA_IPU3_AIQ_INPUT_PARAMETERS_H */