1 files changed, 67 insertions, 0 deletions
diff --git a/wolfcrypt/src/port/Espressif/esp32_util.c b/wolfcrypt/src/port/Espressif/esp32_util.c
new file mode 100644
index 0000000..b501b5e
--- /dev/null
+++ b/wolfcrypt/src/port/Espressif/esp32_util.c
@@ -0,0 +1,67 @@
+/* esp32_util.c
+ *
+ * Copyright (C) 2006-2020 wolfSSL Inc.
+ *
+ * This file is part of wolfSSL.
+ *
+ * wolfSSL is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * wolfSSL is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
+ */
+#include <wolfssl/wolfcrypt/settings.h>
+
+#if defined(WOLFSSL_ESP32WROOM32_CRYPT) && \
+  (!defined(NO_AES)        || !defined(NO_SHA) || !defined(NO_SHA256) ||\
+   defined(WOLFSSL_SHA384) || defined(WOLFSSL_SHA512))
+
+#include <wolfssl/wolfcrypt/wc_port.h>
+#include <wolfssl/wolfcrypt/error-crypt.h>
+
+int esp_CryptHwMutexInit(wolfSSL_Mutex* mutex) {
+    return wc_InitMutex(mutex);
+}
+
+int esp_CryptHwMutexLock(wolfSSL_Mutex* mutex, TickType_t xBlockTime) {
+#ifdef SINGLE_THREADED
+    return wc_LockMutex(mutex);
+#else
+    return ((xSemaphoreTake( *mutex, xBlockTime ) == pdTRUE) ? 0 : BAD_MUTEX_E);
+#endif
+}
+
+int esp_CryptHwMutexUnLock(wolfSSL_Mutex* mutex) {
+    return wc_UnLockMutex(mutex);
+}
+
+#endif
+
+#ifdef WOLFSSL_ESP32WROOM32_CRYPT_DEBUG
+
+#include "esp_timer.h"
+#include "esp_log.h"
+
+static uint64_t startTime = 0;
+
+
+void wc_esp32TimerStart()
+{
+    startTime = esp_timer_get_time();
+}
+
+uint64_t  wc_esp32elapsedTime()
+{
+    /* return elapsed time since wc_esp32AesTimeStart() is called in us */
+    return esp_timer_get_time() - startTime;
+}
+
+#endif /*WOLFSSL_ESP32WROOM32_CRYPT_DEBUG */