1 files changed, 95 insertions, 0 deletions
diff --git a/lib/hc32f460/driver/inc/hc32f460_trng.h b/lib/hc32f460/driver/inc/hc32f460_trng.h
new file mode 100644
index 00000000..b34f37c3
--- /dev/null
+++ b/lib/hc32f460/driver/inc/hc32f460_trng.h
@@ -0,0 +1,95 @@
+/*******************************************************************************
+ * Copyright (C) 2020, Huada Semiconductor Co., Ltd. All rights reserved.
+ *
+ * This software component is licensed by HDSC under BSD 3-Clause license
+ * (the "License"); You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                    opensource.org/licenses/BSD-3-Clause
+ */
+/******************************************************************************/
+/** \file hc32f460_trng.h
+ **
+ ** A detailed description is available at
+ ** @link TrngGroup Trng description @endlink
+ **
+ **   - 2018-10-20  CDT First version for Device Driver Library of Trng.
+ **
+ ******************************************************************************/
+#ifndef __HC32F460_TRNG_H__
+#define __HC32F460_TRNG_H__
+
+/*******************************************************************************
+ * Include files
+ ******************************************************************************/
+#include "hc32_common.h"
+
+/* C binding of definitions if building with C++ compiler */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/**
+ *******************************************************************************
+ ** \defgroup TrngGroup True Random Number Generator(TRNG)
+ **
+ ******************************************************************************/
+//@{
+
+/*******************************************************************************
+ * Global type definitions ('typedef')
+ ******************************************************************************/
+
+/*******************************************************************************
+ * Global pre-processor symbols/macros ('#define')
+ ******************************************************************************/
+/* The data register loads the new initial value from the random number
+   generator before the random number is generated. */
+typedef enum en_trng_load_ctrl
+{
+    TrngLoadNewInitValue_Disable = 0x0,     ///< Disable load new initial values.
+    TrngLoadNewInitValue_Enable  = 0x1,     ///< Enable load new initial values.
+} en_trng_load_ctrl_t;
+
+/* Shift n times when capturing random noise. */
+typedef enum en_trng_shift_cnt
+{
+    TrngShiftCount_32            = 0x3,     ///< Shift 32 times when capturing random noise.
+    TrngShiftCount_64            = 0x4,     ///< Shift 64 times when capturing random noise.
+    TrngShiftCount_128           = 0x5,     ///< Shift 128 times when capturing random noise.
+    TrngShiftCount_256           = 0x6,     ///< Shift 256 times when capturing random noise.
+} en_trng_shift_cnt_t;
+
+/* TRNG initialization structure definition. */
+typedef struct stc_trng_init
+{
+    en_trng_load_ctrl_t enLoadCtrl;         ///< @ref en_trng_load_ctrl_t.
+    en_trng_shift_cnt_t enShiftCount;       ///< @ref en_trng_shift_cnt_t.
+} stc_trng_init_t;
+
+/*******************************************************************************
+ * Global variable definitions ('extern')
+ ******************************************************************************/
+
+/*******************************************************************************
+ * Global function prototypes (definition in C source)
+ ******************************************************************************/
+
+en_result_t TRNG_Init(const stc_trng_init_t *pstcInit);
+void TRNG_DeInit(void);
+en_result_t TRNG_Generate(uint32_t *pu32Random, uint8_t u8Length, uint32_t u32Timeout);
+
+void TRNG_StartIT(void);
+void TRNG_GetRandomNum(uint32_t *pu32Random, uint8_t u8Length);
+
+//@} // TrngGroup
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __HC32F460_TRNG_H__ */
+
+/*******************************************************************************
+ * EOF (not truncated)
+ ******************************************************************************/