add cpu up

src/cpu_up.c

@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2006-2024, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2024-04-19     Shell        Fixup UP irq spinlock
+ */
+#include <rthw.h>
+#include <rtthread.h>
+
+/**
+ * @brief   Initialize a static spinlock object.
+ *
+ * @param   lock is a pointer to the spinlock to initialize.
+ */
+void rt_spin_lock_init(struct rt_spinlock *lock)
+{
+    RT_UNUSED(lock);
+}
+
+/**
+ * @brief   This function will lock the spinlock, will lock the thread scheduler.
+ *
+ * @note    If the spinlock is locked, the current CPU will keep polling the spinlock state
+ *          until the spinlock is unlocked.
+ *
+ * @param   lock is a pointer to the spinlock.
+ */
+void rt_spin_lock(struct rt_spinlock *lock)
+{
+    RT_UNUSED(lock);
+    rt_enter_critical();
+}
+
+/**
+ * @brief   This function will unlock the spinlock, will unlock the thread scheduler.
+ *
+ * @param   lock is a pointer to the spinlock.
+ */
+void rt_spin_unlock(struct rt_spinlock *lock)
+{
+    RT_UNUSED(lock);
+    rt_exit_critical();
+}
+
+/**
+ * @brief   This function will disable the local interrupt and then lock the spinlock, will lock the thread scheduler.
+ *
+ * @note    If the spinlock is locked, the current CPU will keep polling the spinlock state
+ *          until the spinlock is unlocked.
+ *
+ * @param   lock is a pointer to the spinlock.
+ *
+ * @return  Return current cpu interrupt status.
+ */
+rt_base_t rt_spin_lock_irqsave(struct rt_spinlock *lock)
+{
+    rt_base_t level;
+    RT_UNUSED(lock);
+    level = rt_hw_interrupt_disable();
+    rt_enter_critical();
+    return level;
+}
+
+/**
+ * @brief   This function will unlock the spinlock and then restore current cpu interrupt status, will unlock the thread scheduler.
+ *
+ * @param   lock is a pointer to the spinlock.
+ *
+ * @param   level is interrupt status returned by rt_spin_lock_irqsave().
+ */
+void rt_spin_unlock_irqrestore(struct rt_spinlock *lock, rt_base_t level)
+{
+    RT_UNUSED(lock);
+    rt_exit_critical();
+    rt_hw_interrupt_enable(level);
+}