Add system ThreadX support

lwprintf/src/system/lwprintf_sys_threadx.c

@@ -0,0 +1,69 @@
+/**
+ * \file            lwprintf_sys_cmsis_os.c
+ * \brief           System functions for CMSIS-OS based operating system
+ */
+
+/*
+ * Copyright (c) 2020 Tilen MAJERLE
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
+ * AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * This file is part of LwPRINTF - Lightweight stdio manager library.
+ *
+ * Author:          Tilen MAJERLE <tilen@majerle.eu>
+ * Version:         v1.0.3
+ */
+#include "system/lwprintf_sys.h"
+
+#if LWPRINTF_CFG_OS && !__DOXYGEN__
+
+/*
+ * To use this module, options must be defined as
+ *
+ * #define LWPRINTF_CFG_OS_MUTEX_HANDLE     TX_MUTEX
+ */
+
+/* Include ThreadX API module */
+#include "tx_api.h"
+#include "tx_mutex.h"
+
+uint8_t
+lwprintf_sys_mutex_create(LWPRINTF_CFG_OS_MUTEX_HANDLE* m) {
+    static char name[] = "lwprintf_mutex";
+    return tx_mutex_create(m, name, TX_INHERIT) == TX_SUCCESS;
+}
+
+uint8_t
+lwprintf_sys_mutex_isvalid(LWPRINTF_CFG_OS_MUTEX_HANDLE* m) {
+    return m->tx_mutex_id == TX_MUTEX_ID;
+}
+
+uint8_t
+lwprintf_sys_mutex_wait(LWPRINTF_CFG_OS_MUTEX_HANDLE* m) {
+    return tx_mutex_get(m, TX_WAIT_FOREVER) == TX_SUCCESS;
+}
+
+uint8_t
+lwprintf_sys_mutex_release(LWPRINTF_CFG_OS_MUTEX_HANDLE* m) {
+    return tx_mutex_put(m) == TX_SUCCESS;
+}
+
+#endif /* LWPRINTF_CFG_OS && !__DOXYGEN__ */