69 lines
1.7 KiB
C
Executable File
69 lines
1.7 KiB
C
Executable File
/*
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* linux/drivers/gpu/exynos/hdr_tunables.c
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*
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* Copyright (C) 2017 Samsung Electronics Co., Ltd.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms 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 that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*/
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#include <linux/module.h>
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#include <linux/stat.h>
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#include <video/exynos_hdr_tunables.h>
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static unsigned int nr_tm_lut_x_values = NR_TM_LUT_VALUES;
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static unsigned int nr_tm_lut_y_values = NR_TM_LUT_VALUES;
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static uint tm_lut_x[NR_TM_LUT_VALUES];
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static uint tm_lut_y[NR_TM_LUT_VALUES];
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static uint tm_override_enable;
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int exynos_hdr_get_tm_lut_xy(u32 lut_x[], u32 lut_y[])
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{
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int i;
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if (!tm_override_enable)
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return 0;
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for (i = 0; i < nr_tm_lut_x_values; i++)
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lut_x[i] = tm_lut_x[i] & 0x3FFF;
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for (; i < NR_TM_LUT_VALUES; i++)
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lut_x[i] = 0;
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for (i = 0; i < nr_tm_lut_y_values; i++)
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lut_y[i] = tm_lut_y[i] & 0xFFF;
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for (; i < NR_TM_LUT_VALUES; i++)
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lut_y[i] = 0;
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return NR_TM_LUT_VALUES;
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}
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int exynos_hdr_get_tm_lut(u32 lut[])
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{
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int i = 0;
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if (!tm_override_enable)
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return 0;
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for (i = 0; i < nr_tm_lut_x_values; i++)
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lut[i] = tm_lut_x[i] & 0x3FFF;
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for (; i < NR_TM_LUT_VALUES; i++)
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lut[i] = 0;
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for (i = 0; i < nr_tm_lut_y_values; i++)
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lut[i] |= (tm_lut_y[i] & 0xFFF) << 16;
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return NR_TM_LUT_VALUES;
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}
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module_param_array(tm_lut_x, uint, &nr_tm_lut_x_values, 0644);
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module_param_array(tm_lut_y, uint, &nr_tm_lut_y_values, 0644);
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module_param(tm_override_enable, uint, 0644);
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