First Official Release of ARMV8M Support. This release removes Pre-Release from all...

[freertos] / FreeRTOS / Demo / Common / ARMv8M / tz_demo / nsc_functions.c

diff --git a/FreeRTOS/Demo/Common/ARMv8M/tz_demo/nsc_functions.c b/FreeRTOS/Demo/Common/ARMv8M/tz_demo/nsc_functions.c
new file mode 100644 (file)
index 0000000..aaf31a7
--- /dev/null
+++ b/FreeRTOS/Demo/Common/ARMv8M/tz_demo/nsc_functions.c
@@ -0,0 +1,59 @@
+/*\r
+ * FreeRTOS Kernel V10.2.0\r
+ * Copyright (C) 2019 Amazon.com, Inc. or its affiliates.  All Rights Reserved.\r
+ *\r
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of\r
+ * this software and associated documentation files (the "Software"), to deal in\r
+ * the Software without restriction, including without limitation the rights to\r
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of\r
+ * the Software, and to permit persons to whom the Software is furnished to do so,\r
+ * subject to the following conditions:\r
+ *\r
+ * The above copyright notice and this permission notice shall be included in all\r
+ * copies or substantial portions of the Software.\r
+ *\r
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\r
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS\r
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR\r
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER\r
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\r
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\r
+ *\r
+ * http://www.FreeRTOS.org\r
+ * http://aws.amazon.com/freertos\r
+ *\r
+ * 1 tab == 4 spaces!\r
+ */\r
+\r
+#include <arm_cmse.h>\r
+#include "nsc_functions.h"\r
+#include "secure_port_macros.h"\r
+\r
+/**\r
+ * @brief Counter returned from NSCFunction.\r
+ */\r
+static uint32_t ulSecureCounter = 0;\r
+\r
+/**\r
+ * @brief typedef for non-secure callback.\r
+ */\r
+typedef void ( *NonSecureCallback_t ) ( void ) __attribute__( ( cmse_nonsecure_call ) );\r
+/*-----------------------------------------------------------*/\r
+\r
+secureportNON_SECURE_CALLABLE uint32_t NSCFunction( Callback_t pxCallback )\r
+{\r
+NonSecureCallback_t pxNonSecureCallback;\r
+\r
+    /* Return function pointer with cleared LSB. */\r
+    pxNonSecureCallback = ( NonSecureCallback_t ) cmse_nsfptr_create( pxCallback );\r
+\r
+    /* Invoke the supplied callback. */\r
+    pxNonSecureCallback();\r
+\r
+    /* Increment the secure side counter. */\r
+    ulSecureCounter += 1;\r
+\r
+    /* Return the secure side counter. */\r
+    return ulSecureCounter;\r
+}\r
+/*-----------------------------------------------------------*/\r