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-rw-r--r--os/hal/include/hal.h5
-rw-r--r--os/hal/include/hal_trng.h87
2 files changed, 92 insertions, 0 deletions
diff --git a/os/hal/include/hal.h b/os/hal/include/hal.h
index b464fdcda..4b2ba597c 100644
--- a/os/hal/include/hal.h
+++ b/os/hal/include/hal.h
@@ -98,6 +98,10 @@
#define HAL_USE_SPI FALSE
#endif
+#if !defined(HAL_USE_TRNG)
+#define HAL_USE_TRNG FALSE
+#endif
+
#if !defined(HAL_USE_UART)
#define HAL_USE_UART FALSE
#endif
@@ -147,6 +151,7 @@
#include "hal_serial.h"
#include "hal_sdc.h"
#include "hal_spi.h"
+#include "hal_trng.h"
#include "hal_uart.h"
#include "hal_usb.h"
#include "hal_wdg.h"
diff --git a/os/hal/include/hal_trng.h b/os/hal/include/hal_trng.h
new file mode 100644
index 000000000..48d95613e
--- /dev/null
+++ b/os/hal/include/hal_trng.h
@@ -0,0 +1,87 @@
+/*
+ ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/**
+ * @file hal_trng.h
+ * @brief TRNG Driver macros and structures.
+ *
+ * @addtogroup TRNG
+ * @{
+ */
+
+#ifndef HAL_TRNG_H
+#define HAL_TRNG_H
+
+#if (HAL_USE_TRNG == TRUE) || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver constants. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver pre-compile time settings. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Derived constants and error checks. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver data structures and types. */
+/*===========================================================================*/
+
+/**
+ * @brief Driver state machine possible states.
+ */
+typedef enum {
+ TRNG_UNINIT = 0, /**< Not initialized. */
+ TRNG_STOP = 1, /**< Stopped. */
+ TRNG_READY = 2, /**< Ready. */
+ TRNG_RUNNING = 3 /**< Generating random number. */
+} trngstate_t;
+
+/**
+ * @brief Type of a structure representing a TRNG driver.
+ */
+typedef struct TRNGDriver TRNGDriver;
+
+#include "hal_trng_lld.h"
+
+/*===========================================================================*/
+/* Driver macros. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ void trngInit(void);
+ void trngObjectInit(TRNGDriver *trngp);
+ void trngStart(TRNGDriver *trngp, const TRNGConfig *config);
+ void trngStop(TRNGDriver *trngp);
+ bool trngGenerate(TRNGDriver *trngp, size_t size, uint8_t *out);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAL_USE_TRNG == TRUE */
+
+#endif /* HAL_TRNG_H */
+
+/** @} */