From 48026bb824fd2d9cfb00ecd040db6ef3a416bae9 Mon Sep 17 00:00:00 2001
From: Clyne Sullivan <clyne@bitgloo.com>
Date: Fri, 22 Jan 2021 21:43:36 -0500
Subject: upload initial port

---
 ChibiOS_20.3.2/os/hal/templates/hal_trng_lld.c | 140 +++++++++++++++++++++++++
 1 file changed, 140 insertions(+)
 create mode 100644 ChibiOS_20.3.2/os/hal/templates/hal_trng_lld.c

(limited to 'ChibiOS_20.3.2/os/hal/templates/hal_trng_lld.c')

diff --git a/ChibiOS_20.3.2/os/hal/templates/hal_trng_lld.c b/ChibiOS_20.3.2/os/hal/templates/hal_trng_lld.c
new file mode 100644
index 0000000..68965fc
--- /dev/null
+++ b/ChibiOS_20.3.2/os/hal/templates/hal_trng_lld.c
@@ -0,0 +1,140 @@
+/*
+    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_lld.c
+ * @brief   PLATFORM TRNG subsystem low level driver source.
+ *
+ * @addtogroup TRNG
+ * @{
+ */
+
+#include "hal.h"
+
+#if (HAL_USE_TRNG == TRUE) || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver local definitions.                                                 */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported variables.                                                */
+/*===========================================================================*/
+
+/**
+ * @brief   TRNGD1 driver identifier.
+ */
+#if (PLATFORM_TRNG_USE_TRNG1 == TRUE) || defined(__DOXYGEN__)
+TRNGDriver TRNGD1;
+#endif
+
+/*===========================================================================*/
+/* Driver local variables and types.                                         */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions.                                                   */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver interrupt handlers.                                                */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported functions.                                                */
+/*===========================================================================*/
+
+/**
+ * @brief   Low level TRNG driver initialization.
+ *
+ * @notapi
+ */
+void trng_lld_init(void) {
+
+#if PLATFORM_TRNG_USE_TRNG1 == TRUE
+  /* Driver initialization.*/
+  trngObjectInit(&TRNGD1);
+#endif
+}
+
+/**
+ * @brief   Configures and activates the TRNG peripheral.
+ *
+ * @param[in] trngp      pointer to the @p TRNGDriver object
+ *
+ * @notapi
+ */
+void trng_lld_start(TRNGDriver *trngp) {
+
+  if (trngp->state == TRNG_STOP) {
+    /* Enables the peripheral.*/
+#if PLATFORM_TRNG_USE_TRNG1 == TRUE
+    if (&TRNGD1 == trngp) {
+
+    }
+#endif
+  }
+  /* Configures the peripheral.*/
+
+}
+
+/**
+ * @brief   Deactivates the TRNG peripheral.
+ *
+ * @param[in] trngp      pointer to the @p TRNGDriver object
+ *
+ * @notapi
+ */
+void trng_lld_stop(TRNGDriver *trngp) {
+
+  if (trngp->state == TRNG_READY) {
+    /* Resets the peripheral.*/
+
+    /* Disables the peripheral.*/
+#if PLATFORM_TRNG_USE_TRNG1 == TRUE
+    if (&TRNGD1 == trngp) {
+
+    }
+#endif
+  }
+}
+
+/**
+ * @brief   True random numbers generator.
+ * @note    The function is blocking and likely performs polled waiting
+ *          inside the low level implementation.
+ *
+ * @param[in] trngp             pointer to the @p TRNGDriver object
+ * @param[in] size              size of output buffer
+ * @param[out] out              output buffer
+ * @return                      The operation status.
+ * @retval false                if a random number has been generated.
+ * @retval true                 if an HW error occurred.
+ *
+ * @api
+ */
+bool trng_lld_generate(TRNGDriver *trngp, size_t size, uint8_t *out) {
+
+  (void)trngp;
+  (void)size;
+  (void)out;
+
+  return true;
+}
+
+#endif /* HAL_USE_TRNG == TRUE */
+
+/** @} */
-- 
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