添加rtthread相关代码

riscv/rtthread/components/drivers/pm/lptimer.c

@@ -0,0 +1,176 @@
+/*
+ * Copyright (c) 2006-2023, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2021-10-11     zhangsz      the first version
+ */
+
+#include <rtthread.h>
+#include <rthw.h>
+#include <drivers/lptimer.h>
+
+static rt_list_t rt_soft_lptimer_list = RT_LIST_OBJECT_INIT(rt_soft_lptimer_list);
+
+/* lptimer init */
+void rt_lptimer_init(rt_lptimer_t  timer,
+                   const char *name,
+                   void (*timeout)(void *parameter),
+                   void       *parameter,
+                   rt_tick_t   time,
+                   rt_uint8_t  flag)
+{
+    rt_timer_init(&timer->timer, name, timeout, parameter, time, flag);
+    rt_list_init(&timer->list);
+}
+
+/* lptimer detach */
+rt_err_t rt_lptimer_detach(rt_lptimer_t timer)
+{
+    rt_base_t level;
+    rt_err_t ret = RT_EOK;
+    RT_ASSERT(timer != RT_NULL);
+
+    /* disable interrupt */
+    level = rt_hw_interrupt_disable();
+
+    ret = rt_timer_detach(&timer->timer);
+    rt_list_remove(&timer->list);
+
+    /* enable interrupt */
+    rt_hw_interrupt_enable(level);
+    return ret;
+}
+
+/* lptimer start */
+rt_err_t rt_lptimer_start(rt_lptimer_t timer)
+{
+    rt_base_t level;
+
+    RT_ASSERT(timer != RT_NULL);
+
+    /* disable interrupt */
+    level = rt_hw_interrupt_disable();
+    rt_list_remove(&timer->list); /* remove first */
+    if (rt_timer_start(&timer->timer) == RT_EOK)
+    {
+        /* insert to lptimer list */
+        rt_list_insert_after(&rt_soft_lptimer_list, &(timer->list));
+    }
+    else
+    {
+        /* enable interrupt */
+        rt_hw_interrupt_enable(level);
+        return -RT_ERROR;
+    }
+
+    /* enable interrupt */
+    rt_hw_interrupt_enable(level);
+    return RT_EOK;
+}
+
+/* lptimer stop */
+rt_err_t rt_lptimer_stop(rt_lptimer_t timer)
+{
+    rt_base_t level;
+    RT_ASSERT(timer != RT_NULL);
+
+    /* disable interrupt */
+    level = rt_hw_interrupt_disable();
+    rt_list_remove(&timer->list);
+    if (rt_timer_stop(&timer->timer) == RT_EOK)
+    {
+        /* enable interrupt */
+        rt_hw_interrupt_enable(level);
+        return RT_EOK;
+    }
+    else
+    {
+        /* enable interrupt */
+        rt_hw_interrupt_enable(level);
+        return -RT_ERROR;
+    }
+}
+
+rt_err_t rt_lptimer_control(rt_lptimer_t timer, int cmd, void *arg)
+{
+    RT_ASSERT(timer != RT_NULL);
+
+    return rt_timer_control(&timer->timer, cmd, arg);
+}
+
+/* get the next soft lptimer timeout */
+rt_tick_t rt_lptimer_next_timeout_tick(void)
+{
+    struct rt_lptimer *timer;
+    rt_base_t level;
+    rt_tick_t timeout_tick = RT_TICK_MAX;
+    struct rt_list_node *node = RT_NULL;
+    rt_tick_t temp_tick = 0;
+    rt_tick_t min_tick = RT_TICK_MAX;
+    rt_tick_t cur_tick = rt_tick_get();
+
+    /* disable interrupt */
+    level = rt_hw_interrupt_disable();
+
+    if (!rt_list_isempty(&rt_soft_lptimer_list))
+    {
+        /* find the first active timer's timeout */
+        rt_list_for_each(node, &rt_soft_lptimer_list)
+        {
+            timer = rt_list_entry(node, struct rt_lptimer, list);
+            if (timer->timer.parent.flag & RT_TIMER_FLAG_ACTIVATED)
+            {
+                temp_tick = timer->timer.timeout_tick - cur_tick;
+
+                /* find the least timeout_tick */
+                if (min_tick > temp_tick)
+                {
+                    min_tick = temp_tick;
+                    timeout_tick = timer->timer.timeout_tick;
+                }
+            }
+        }
+    }
+
+    /* enable interrupt */
+    rt_hw_interrupt_enable(level);
+
+    return timeout_tick;
+}
+
+void lptimer_dump(void)
+{
+    struct rt_lptimer *timer;
+    rt_base_t level;
+    struct rt_list_node *node = RT_NULL;
+
+    /* disable interrupt */
+    level = rt_hw_interrupt_disable();
+
+    rt_kprintf("| lptimer       | periodic   | timeout    |  flag       |\n");
+    rt_kprintf("+---------------+------------+------------+-------------+\n");
+
+    if (!rt_list_isempty(&rt_soft_lptimer_list))
+    {
+        rt_list_for_each(node, &rt_soft_lptimer_list)
+        {
+            timer = rt_list_entry(node, struct rt_lptimer, list);
+            rt_kprintf("| %-13s | 0x%08x | 0x%08x |",
+                timer->timer.parent.name, timer->timer.init_tick,
+                timer->timer.timeout_tick);
+            if (timer->timer.parent.flag & RT_TIMER_FLAG_ACTIVATED)
+                rt_kprintf(" activated   |\n");
+            else
+                rt_kprintf(" deactivated |\n");
+        }
+    }
+
+    /* enable interrupt */
+    rt_hw_interrupt_enable(level);
+    rt_kprintf("+---------------+------------+------------+-------------+\n");
+}
+
+MSH_CMD_EXPORT(lptimer_dump, soft lptimer dump);