Diff: source/rtos/rt_Robin.c

Revision:

0:01f31e923fe2

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/source/rtos/rt_Robin.c	Tue Apr 07 12:55:42 2020 +0200
@@ -0,0 +1,70 @@
+/**
+ * @file    rt_Robin.c
+ * @brief   
+ *
+ * DAPLink Interface Firmware
+ * Copyright (c) 2009-2016, ARM Limited, All Rights Reserved
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * 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.
+ */
+
+#include "rt_TypeDef.h"
+#include "RTX_Config.h"
+#include "rt_List.h"
+#include "rt_Task.h"
+#include "rt_Time.h"
+#include "rt_Robin.h"
+
+/*----------------------------------------------------------------------------
+ *      Global Variables
+ *---------------------------------------------------------------------------*/
+
+struct OS_ROBIN os_robin;
+
+
+/*----------------------------------------------------------------------------
+ *      Global Functions
+ *---------------------------------------------------------------------------*/
+
+/*--------------------------- rt_init_robin ---------------------------------*/
+
+__weak void rt_init_robin (void) {
+  /* Initialize Round Robin variables. */
+  os_robin.task = NULL;
+  os_robin.tout = (U16)os_rrobin;
+}
+
+/*--------------------------- rt_chk_robin ----------------------------------*/
+
+__weak void rt_chk_robin (void) {
+  /* Check if Round Robin timeout expired and switch to the next ready task.*/
+  P_TCB p_new;
+
+  if (os_robin.task != os_rdy.p_lnk) {
+    /* New task was suspended, reset Round Robin timeout. */
+    os_robin.task = os_rdy.p_lnk;
+    os_robin.time = (U16)os_time + os_robin.tout - 1;
+  }
+  if (os_robin.time == (U16)os_time) {
+    /* Round Robin timeout has expired, swap Robin tasks. */
+    os_robin.task = NULL;
+    p_new = rt_get_first (&os_rdy);
+    rt_put_prio ((P_XCB)&os_rdy, p_new);
+  }
+}
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
+