/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Support for Intel Camera Imaging ISP subsystem.
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* Copyright (c) 2015, Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*/
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#ifndef __IA_CSS_TPG_H
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#define __IA_CSS_TPG_H
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/* @file
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* This file contains support for the test pattern generator (TPG)
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*/
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/* Enumerate the TPG IDs.
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*/
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enum ia_css_tpg_id {
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IA_CSS_TPG_ID0,
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IA_CSS_TPG_ID1,
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IA_CSS_TPG_ID2
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};
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/**
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* Maximum number of TPG IDs.
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*
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* Make sure the value of this define gets changed to reflect the correct
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* number of ia_css_tpg_id enum if you add/delete an item in the enum.
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*/
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#define N_CSS_TPG_IDS (IA_CSS_TPG_ID2 + 1)
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/* Enumerate the TPG modes.
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*/
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enum ia_css_tpg_mode {
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IA_CSS_TPG_MODE_RAMP,
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IA_CSS_TPG_MODE_CHECKERBOARD,
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IA_CSS_TPG_MODE_FRAME_BASED_COLOR,
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IA_CSS_TPG_MODE_MONO
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};
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/* @brief Configure the test pattern generator.
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*
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* Configure the Test Pattern Generator, the way these values are used to
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* generate the pattern can be seen in the HRT extension for the test pattern
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* generator:
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* devices/test_pat_gen/hrt/include/test_pat_gen.h: hrt_calc_tpg_data().
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*
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* This interface is deprecated, it is not portable -> move to input system API
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*
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@code
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unsigned int test_pattern_value(unsigned int x, unsigned int y)
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{
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unsigned int x_val, y_val;
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if (x_delta > 0) (x_val = (x << x_delta) & x_mask;
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else (x_val = (x >> -x_delta) & x_mask;
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if (y_delta > 0) (y_val = (y << y_delta) & y_mask;
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else (y_val = (y >> -y_delta) & x_mask;
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return (x_val + y_val) & xy_mask;
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}
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@endcode
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*/
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struct ia_css_tpg_config {
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enum ia_css_tpg_id id;
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enum ia_css_tpg_mode mode;
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unsigned int x_mask;
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int x_delta;
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unsigned int y_mask;
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int y_delta;
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unsigned int xy_mask;
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};
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#endif /* __IA_CSS_TPG_H */
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