first

rt-thread/components/drivers/ktime/src/aarch64/cputimer.c

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2006-2023, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2023-07-10     xqyjlj       The first version.
+ */
+
+#include "gtimer.h"
+#include "ktime.h"
+
+static volatile unsigned long _init_cnt = 0;
+
+rt_uint64_t rt_ktime_cputimer_getres(void)
+{
+    return ((1000ULL * 1000 * 1000) * RT_KTIME_RESMUL) / rt_hw_get_gtimer_frq();
+}
+
+unsigned long rt_ktime_cputimer_getfrq(void)
+{
+    return rt_hw_get_gtimer_frq();
+}
+
+unsigned long rt_ktime_cputimer_getcnt(void)
+{
+    return rt_hw_get_cntpct_val() - _init_cnt;
+}
+
+unsigned long rt_ktime_cputimer_getstep(void)
+{
+    return rt_ktime_cputimer_getfrq() / RT_TICK_PER_SECOND;
+}
+
+void rt_ktime_cputimer_init(void)
+{
+    _init_cnt = rt_hw_get_cntpct_val();
+}

rt-thread/components/drivers/ktime/src/boottime.c

@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2006-2023, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2023-07-10     xqyjlj       The first version.
+ */
+
+#include "ktime.h"
+
+#define __KTIME_MUL ((1000ULL * 1000 * 1000) / RT_TICK_PER_SECOND)
+
+rt_weak rt_err_t rt_ktime_boottime_get_us(struct timeval *tv)
+{
+    RT_ASSERT(tv != RT_NULL);
+
+    rt_uint64_t ns = (rt_ktime_cputimer_getcnt() * rt_ktime_cputimer_getres()) / RT_KTIME_RESMUL;
+
+    tv->tv_sec  = ns / (1000ULL * 1000 * 1000);
+    tv->tv_usec = (ns % (1000ULL * 1000 * 1000)) / 1000;
+
+    return RT_EOK;
+}
+
+rt_weak rt_err_t rt_ktime_boottime_get_s(time_t *t)
+{
+    RT_ASSERT(t != RT_NULL);
+
+    rt_uint64_t ns = (rt_ktime_cputimer_getcnt() * rt_ktime_cputimer_getres()) / RT_KTIME_RESMUL;
+
+    *t = ns / (1000ULL * 1000 * 1000);
+
+    return RT_EOK;
+}
+
+rt_weak rt_err_t rt_ktime_boottime_get_ns(struct timespec *ts)
+{
+    RT_ASSERT(ts != RT_NULL);
+
+    rt_uint64_t ns = (rt_ktime_cputimer_getcnt() * rt_ktime_cputimer_getres()) / RT_KTIME_RESMUL;
+
+    ts->tv_sec  = ns / (1000ULL * 1000 * 1000);
+    ts->tv_nsec = ns % (1000ULL * 1000 * 1000);
+
+    return RT_EOK;
+}

rt-thread/components/drivers/ktime/src/cputimer.c

@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2006-2023, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2023-07-10     xqyjlj       The first version.
+ */
+
+#include "ktime.h"
+
+rt_weak rt_uint64_t rt_ktime_cputimer_getres(void)
+{
+    return ((1000ULL * 1000 * 1000) * RT_KTIME_RESMUL) / RT_TICK_PER_SECOND;
+}
+
+rt_weak unsigned long rt_ktime_cputimer_getfrq(void)
+{
+    return RT_TICK_PER_SECOND;
+}
+
+rt_weak unsigned long rt_ktime_cputimer_getcnt(void)
+{
+    return rt_tick_get();
+}
+
+rt_weak unsigned long rt_ktime_cputimer_getstep(void)
+{
+    return 1;
+}
+
+rt_weak void rt_ktime_cputimer_init(void)
+{
+    return;
+}

rt-thread/components/drivers/ktime/src/hrtimer.c

@@ -0,0 +1,391 @@
+/*
+ * Copyright (c) 2006-2023, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2023-07-10     xqyjlj       The first version.
+ * 2023-09-15     xqyjlj       perf rt_hw_interrupt_disable/enable
+ */
+
+#include <rtdevice.h>
+#include <rthw.h>
+#include <rtthread.h>
+
+#define DBG_SECTION_NAME               "drv.ktime"
+#define DBG_LEVEL                      DBG_INFO
+#include <rtdbg.h>
+
+#include "ktime.h"
+
+#ifdef ARCH_CPU_64BIT
+#define _HRTIMER_MAX_CNT UINT64_MAX
+#else
+#define _HRTIMER_MAX_CNT UINT32_MAX
+#endif
+
+static rt_list_t          _timer_list   = RT_LIST_OBJECT_INIT(_timer_list);
+static RT_DEFINE_SPINLOCK(_spinlock);
+
+rt_inline rt_ktime_hrtimer_t _first_hrtimer(void)
+{
+    return rt_list_isempty(&_timer_list) ? RT_NULL : rt_list_first_entry(&_timer_list, struct rt_ktime_hrtimer, node);
+}
+
+rt_weak rt_uint64_t rt_ktime_hrtimer_getres(void)
+{
+    return ((1000ULL * 1000 * 1000) * RT_KTIME_RESMUL) / RT_TICK_PER_SECOND;
+}
+
+rt_weak unsigned long rt_ktime_hrtimer_getfrq(void)
+{
+    return RT_TICK_PER_SECOND;
+}
+
+rt_weak unsigned long rt_ktime_hrtimer_getcnt(void)
+{
+    return rt_tick_get();
+}
+
+rt_weak rt_err_t rt_ktime_hrtimer_settimeout(unsigned long cnt)
+{
+    static rt_timer_t timer = RT_NULL;
+    static struct rt_timer _sh_rtimer;
+
+    RT_ASSERT(cnt > 0);
+
+    if (timer == RT_NULL)
+    {
+        timer = &_sh_rtimer;
+        rt_timer_init(timer, "shrtimer", (void (*)(void *))rt_ktime_hrtimer_process, RT_NULL, cnt, RT_TIMER_FLAG_ONE_SHOT);
+    }
+    else
+    {
+        rt_tick_t tick = cnt;
+        rt_timer_control(timer, RT_TIMER_CTRL_SET_TIME, &tick);
+        rt_timer_control(timer, RT_TIMER_CTRL_SET_PARM, RT_NULL);
+    }
+
+    if (timer->parent.flag & RT_TIMER_FLAG_ACTIVATED)
+    {
+        rt_timer_stop(timer);
+    }
+
+    rt_timer_start(timer);
+    return RT_EOK;
+}
+
+/**
+ * @brief convert cnt from cputimer cnt to hrtimer cnt
+ *
+ * @param cnt
+ * @return unsigned long
+ */
+static unsigned long _cnt_convert(unsigned long cnt)
+{
+    unsigned long rtn   = 0;
+    unsigned long count = cnt - rt_ktime_cputimer_getcnt();
+    if (count > (_HRTIMER_MAX_CNT / 2))
+        return 0;
+
+    rtn = (count * rt_ktime_cputimer_getres()) / rt_ktime_hrtimer_getres();
+    return rtn == 0 ? 1 : rtn; /* at least 1 */
+}
+
+static void _sleep_timeout(void *parameter)
+{
+    struct rt_ktime_hrtimer *timer = parameter;
+    rt_completion_done(&timer->completion);
+}
+
+static void _insert_timer_to_list_locked(rt_ktime_hrtimer_t timer)
+{
+    rt_ktime_hrtimer_t iter;
+
+    rt_list_for_each_entry(iter, &_timer_list, node)
+    {
+        if (iter->timeout_cnt > timer->timeout_cnt)
+        {
+            break;
+        }
+    }
+    rt_list_insert_before(&iter->node, &(timer->node));
+
+    timer->flag |= RT_TIMER_FLAG_ACTIVATED;
+}
+
+static void _hrtimer_process_locked(void)
+{
+    rt_ktime_hrtimer_t timer;
+
+    for (timer = _first_hrtimer();
+        (timer != RT_NULL) && (timer->timeout_cnt <= rt_ktime_cputimer_getcnt());
+        timer = _first_hrtimer())
+    {
+        rt_list_remove(&(timer->node));
+
+        if (timer->flag & RT_TIMER_FLAG_PERIODIC)
+        {
+            timer->timeout_cnt = timer->delay_cnt + rt_ktime_cputimer_getcnt();
+            _insert_timer_to_list_locked(timer);
+        }
+        else
+        {
+            timer->flag &= ~RT_TIMER_FLAG_ACTIVATED;
+        }
+
+        if (timer->timeout_func)
+        {
+            timer->timeout_func(timer->parameter);
+        }
+    }
+}
+
+static void _set_next_timeout_locked(void)
+{
+    rt_ktime_hrtimer_t timer;
+    rt_ubase_t next_timeout_hrtimer_cnt;
+    rt_bool_t find_next;
+
+    do
+    {
+        find_next = RT_FALSE;
+        if ((timer = _first_hrtimer()) != RT_NULL)
+        {
+            next_timeout_hrtimer_cnt = _cnt_convert(timer->timeout_cnt);
+            if (next_timeout_hrtimer_cnt > 0)
+            {
+                rt_ktime_hrtimer_settimeout(next_timeout_hrtimer_cnt);
+            }
+            else
+            {
+                _hrtimer_process_locked();
+                find_next = RT_TRUE;
+            }
+        }
+    }
+    while (find_next);
+}
+
+void rt_ktime_hrtimer_process(void)
+{
+    rt_base_t level = rt_spin_lock_irqsave(&_spinlock);
+
+    _hrtimer_process_locked();
+    _set_next_timeout_locked();
+
+    rt_spin_unlock_irqrestore(&_spinlock, level);
+}
+
+void rt_ktime_hrtimer_init(rt_ktime_hrtimer_t timer,
+                           const char        *name,
+                           rt_uint8_t         flag,
+                           void (*timeout)(void *parameter),
+                           void *parameter)
+{
+    /* parameter check */
+    RT_ASSERT(timer != RT_NULL);
+    RT_ASSERT(timeout != RT_NULL);
+
+    rt_memset(timer, 0, sizeof(struct rt_ktime_hrtimer));
+
+    timer->flag         = flag & ~RT_TIMER_FLAG_ACTIVATED;
+    timer->timeout_func = timeout;
+    timer->parameter    = parameter;
+    rt_strncpy(timer->name, name, RT_NAME_MAX - 1);
+    rt_list_init(&(timer->node));
+    rt_completion_init(&timer->completion);
+}
+
+rt_err_t rt_ktime_hrtimer_start(rt_ktime_hrtimer_t timer, unsigned long delay_cnt)
+{
+    rt_base_t  level;
+
+    /* parameter check */
+    RT_ASSERT(timer != RT_NULL);
+    RT_ASSERT(delay_cnt < (_HRTIMER_MAX_CNT / 2));
+
+    timer->delay_cnt    = delay_cnt;
+    timer->timeout_cnt  = timer->delay_cnt + rt_ktime_cputimer_getcnt();
+
+    level = rt_spin_lock_irqsave(&_spinlock);
+
+    if (timer->flag & RT_TIMER_FLAG_ACTIVATED)
+    {
+        rt_spin_unlock_irqrestore(&_spinlock, level);
+        return -RT_ERROR;
+    }
+
+    _insert_timer_to_list_locked(timer);
+    _set_next_timeout_locked();
+
+    rt_spin_unlock_irqrestore(&_spinlock, level);
+
+    return RT_EOK;
+}
+
+rt_err_t rt_ktime_hrtimer_stop(rt_ktime_hrtimer_t timer)
+{
+    rt_base_t level;
+
+    RT_ASSERT(timer != RT_NULL); /* timer check */
+
+    level = rt_spin_lock_irqsave(&_spinlock);
+
+    if (!(timer->flag & RT_TIMER_FLAG_ACTIVATED))
+    {
+        rt_spin_unlock_irqrestore(&_spinlock, level);
+        return -RT_ERROR;
+    }
+
+    rt_list_remove(&timer->node);
+    timer->flag &= ~RT_TIMER_FLAG_ACTIVATED;
+    _set_next_timeout_locked();
+
+    rt_spin_unlock_irqrestore(&_spinlock, level);
+
+    return RT_EOK;
+}
+
+rt_err_t rt_ktime_hrtimer_control(rt_ktime_hrtimer_t timer, int cmd, void *arg)
+{
+    rt_base_t level;
+
+    /* parameter check */
+    RT_ASSERT(timer != RT_NULL);
+
+    level = rt_spin_lock_irqsave(&_spinlock);
+    switch (cmd)
+    {
+
+    case RT_TIMER_CTRL_GET_TIME:
+        *(unsigned long *)arg = timer->delay_cnt;
+        break;
+
+    case RT_TIMER_CTRL_SET_TIME:
+        RT_ASSERT((*(unsigned long *)arg) < (_HRTIMER_MAX_CNT / 2));
+        timer->delay_cnt    = *(unsigned long *)arg;
+        timer->timeout_cnt  = *(unsigned long *)arg + rt_ktime_cputimer_getcnt();
+        break;
+
+    case RT_TIMER_CTRL_SET_ONESHOT:
+        timer->flag &= ~RT_TIMER_FLAG_PERIODIC;
+        break;
+
+    case RT_TIMER_CTRL_SET_PERIODIC:
+        timer->flag |= RT_TIMER_FLAG_PERIODIC;
+        break;
+
+    case RT_TIMER_CTRL_GET_STATE:
+        if (timer->flag & RT_TIMER_FLAG_ACTIVATED)
+        {
+            /*timer is start and run*/
+            *(rt_uint32_t *)arg = RT_TIMER_FLAG_ACTIVATED;
+        }
+        else
+        {
+            /*timer is stop*/
+            *(rt_uint32_t *)arg = RT_TIMER_FLAG_DEACTIVATED;
+        }
+        break;
+
+    case RT_TIMER_CTRL_GET_REMAIN_TIME:
+        *(unsigned long *)arg = timer->timeout_cnt;
+        break;
+    case RT_TIMER_CTRL_GET_FUNC:
+        arg = (void *)timer->timeout_func;
+        break;
+
+    case RT_TIMER_CTRL_SET_FUNC:
+        timer->timeout_func = (void (*)(void *))arg;
+        break;
+
+    case RT_TIMER_CTRL_GET_PARM:
+        *(void **)arg = timer->parameter;
+        break;
+
+    case RT_TIMER_CTRL_SET_PARM:
+        timer->parameter = arg;
+        break;
+
+    default:
+        break;
+    }
+    rt_spin_unlock_irqrestore(&_spinlock, level);
+
+    return RT_EOK;
+}
+
+rt_err_t rt_ktime_hrtimer_detach(rt_ktime_hrtimer_t timer)
+{
+    rt_base_t level;
+
+    /* parameter check */
+    RT_ASSERT(timer != RT_NULL);
+
+    /* notify the timer stop event */
+    rt_completion_wakeup_by_errno(&timer->completion, RT_ERROR);
+
+    level = rt_spin_lock_irqsave(&_spinlock);
+
+    /* stop timer */
+    timer->flag &= ~RT_TIMER_FLAG_ACTIVATED;
+    /* when interrupted */
+    if (timer->error == -RT_EINTR || timer->error == RT_EINTR)
+    {
+        rt_list_remove(&timer->node);
+        _set_next_timeout_locked();
+    }
+
+    rt_spin_unlock_irqrestore(&_spinlock, level);
+
+    return RT_EOK;
+}
+
+/************************** delay ***************************/
+
+void rt_ktime_hrtimer_delay_init(struct rt_ktime_hrtimer *timer)
+{
+    rt_ktime_hrtimer_init(timer, "hrtimer_sleep", RT_TIMER_FLAG_ONE_SHOT | RT_TIMER_FLAG_HARD_TIMER,
+                          _sleep_timeout, timer);
+}
+
+void rt_ktime_hrtimer_delay_detach(struct rt_ktime_hrtimer *timer)
+{
+    rt_ktime_hrtimer_detach(timer);
+}
+
+rt_err_t rt_ktime_hrtimer_sleep(struct rt_ktime_hrtimer *timer, unsigned long cnt)
+{
+    rt_err_t err;
+
+    if (cnt == 0)
+        return -RT_EINVAL;
+
+    err = rt_ktime_hrtimer_start(timer, cnt);
+    if (err)
+        return err;
+
+    err = rt_completion_wait_flags(&(timer->completion), RT_WAITING_FOREVER,
+                                   RT_INTERRUPTIBLE);
+    rt_ktime_hrtimer_keep_errno(timer, err);
+
+    return err;
+}
+
+rt_err_t rt_ktime_hrtimer_ndelay(struct rt_ktime_hrtimer *timer, unsigned long ns)
+{
+    rt_uint64_t res = rt_ktime_cputimer_getres();
+    return rt_ktime_hrtimer_sleep(timer, (ns * RT_KTIME_RESMUL) / res);
+}
+
+rt_err_t rt_ktime_hrtimer_udelay(struct rt_ktime_hrtimer *timer, unsigned long us)
+{
+    return rt_ktime_hrtimer_ndelay(timer, us * 1000);
+}
+
+rt_err_t rt_ktime_hrtimer_mdelay(struct rt_ktime_hrtimer *timer, unsigned long ms)
+{
+    return rt_ktime_hrtimer_ndelay(timer, ms * 1000000);
+}

rt-thread/components/drivers/ktime/src/risc-v/virt64/cputimer.c

@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2006-2023, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2023-07-10     xqyjlj       The first version.
+ */
+
+#include "ktime.h"
+
+static volatile unsigned long _init_cnt = 0;
+
+rt_uint64_t rt_ktime_cputimer_getres(void)
+{
+    return ((1000ULL * 1000 * 1000) * RT_KTIME_RESMUL) / CPUTIME_TIMER_FREQ;
+}
+
+unsigned long rt_ktime_cputimer_getfrq(void)
+{
+    return CPUTIME_TIMER_FREQ;
+}
+
+unsigned long rt_ktime_cputimer_getcnt(void)
+{
+    unsigned long time_elapsed;
+    __asm__ __volatile__("rdtime %0" : "=r"(time_elapsed));
+    return time_elapsed - _init_cnt;
+}
+
+unsigned long rt_ktime_cputimer_getstep(void)
+{
+    return rt_ktime_cputimer_getfrq() / RT_TICK_PER_SECOND;
+}
+
+void rt_ktime_cputimer_init(void)
+{
+    __asm__ __volatile__("rdtime %0" : "=r"(_init_cnt));
+}