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76 lines
1.9 KiB
C
76 lines
1.9 KiB
C
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/*
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* Copyright (c) 2022-2023, ArtInChip Technology Co., Ltd
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Authors: Xiong Hao <hao.xiong@artinchip.com>
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*/
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#ifndef _AIC_HAL_TRNG_H_
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#define _AIC_HAL_TRNG_H_
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#include <aic_common.h>
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// TRNG register address
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#define TRNG_BASE (CE_BASE + 0x5000)
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#define TRNG_CR (0x000)
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#define TRNG_MSEL (0x004)
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#define TRNG_SR (0x008)
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#define TRNG_DR (0x00C)
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#define TRNG_RESEED (0x010)
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#define RO_CLK_EN (0x014)
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#define RO_SRC_EN1 (0x018)
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#define RO_SRC_EN2 (0x01C)
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#define TRNG_HT_CR (0x020)
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#define TRNG_HT_SR (0x024)
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#define TRNG_VERSION (0x030)
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// TRNG freq config
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#define TRNG_RO_FREQ_4 (0)
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#define TRNG_RO_FREQ_8 (1)
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#define TRNG_RO_FREQ_16 (2)
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#define TRNG_RO_FREQ_32 (3) //default
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// TRNG action offset
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#define TRNG_GLOBAL_INT_OFFSET (24)
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#define TRNG_READ_EMPTY_INT_OFFSET (17)
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#define TRNG_DATA_INT_OFFSET (16)
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#define TRNG_FREQ_OFFSET (16)
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// TRNG return code
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#define TRNG_SUCCESS (0)
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#define TRNG_BUFFER_NULL (1)
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#define TRNG_INVALID_INPUT (2)
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#define TRNG_INVALID_CONFIG (3)
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#define TRNG_HT_ERROR (4)
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#define TRNG_TIMEOUT_ERROR (5)
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#define TRNG_ERROR (6)
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typedef u32 (*GET_RAND_WORDS)(u32 *a, u32 words);
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//API
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u32 trng_get_version(void);
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void trng_global_int_enable(void);
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void trng_global_int_disable(void);
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void trng_empty_read_int_enable(void);
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void trng_empty_read_int_disable(void);
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void trng_data_int_enable(void);
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void trng_data_int_disable(void);
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void trng_enable(void);
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void trng_disable(void);
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#ifdef AIC_TRNG_RO_ENTROPY
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u32 trng_ro_entropy_config(u8 cfg);
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u32 trng_ro_sub_entropy_config(u8 sn, u16 cfg);
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void trng_set_mode(u8 with_post_processing);
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void trng_reseed(void);
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u32 trng_set_freq(u8 freq);
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u32 get_rand_uint32(u32 *a, u32 words);
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u32 get_rand_uint32_without_reseed(u32 *a, u32 words);
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u32 get_rand_uint32_with_reseed(u32 *a, u32 words);
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u32 get_rand_buffer(u8 *rand, u32 bytes, GET_RAND_WORDS get_rand_words);
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#endif
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#endif
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