fit XiUOS to board ch32v307.

Ubiquitous/XiZi/arch/risc-v/ch32v307vct6/tick.c

@@ -0,0 +1,37 @@
+/*
+* Copyright (c) 2020 AIIT XUOS Lab
+* XiUOS is licensed under Mulan PSL v2.
+* You can use this software according to the terms and conditions of the Mulan PSL v2.
+* You may obtain a copy of Mulan PSL v2 at:
+*        http://license.coscl.org.cn/MulanPSL2
+* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+* See the Mulan PSL v2 for more details.
+*/
+
+#include <xs_ktick.h>
+#include <xs_isr.h>
+#include <xs_assign.h>
+#include "ch32v30x.h"
+#include "ch32v30x_it.h"
+#include "core_riscv.h"
+
+void SysTick_Handler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
+void SysTick_Handler(void)
+{
+    GET_INT_SP();
+    /* enter interrupt */
+    x_base level;
+    level = DisableLocalInterrupt();
+    isrManager.done->incCounter();
+    EnableLocalInterrupt(level);
+    SysTick->SR = 0;
+    TickAndTaskTimesliceUpdate();
+    KTaskOsAssignAfterIrq(NONE);
+    /* leave interrupt */
+    level = DisableLocalInterrupt();
+    isrManager.done->decCounter();
+    EnableLocalInterrupt(level);
+    FREE_INT_SP();
+}