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/*
* Copyright (C) 2017-2024 Alibaba Group Holding Limited
*
* 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 <soc.h>
#include <csi_core.h>
#include <csi_config.h>
#include <sys_clk.h>
#include <drv/common.h>
#include <drv/irq.h>
#include <drv/tick.h>
#include <drv/porting.h>
#include <drv/timer.h>
#include <rtthread.h>
#define __WEAK __attribute__((weak))
#if defined(CONFIG_SMP) && CONFIG_SMP
static volatile uint32_t csi_tick[CONFIG_NR_CPUS] = {0U};
#else
static volatile uint32_t csi_tick = 0U;
#endif
static volatile uint32_t last_time_ms = 0U;
static volatile uint64_t last_time_us = 0U;
static volatile uint64_t timer_init_value = 0U;
#if CONFIG_CPU_XUANTIE_E9XX || CONFIG_INTC_CLIC_PLIC
static csi_dev_t tick_dev;
#endif
void csi_tick_increase(void)
{
#if defined(CONFIG_SMP) && CONFIG_SMP
csi_tick[csi_get_cpu_id()]++;
#else
csi_tick++;
#endif
}
uint32_t csi_tick_get(void)
{
#if defined(CONFIG_SMP) && CONFIG_SMP
return csi_tick[csi_get_cpu_id()];
#else
return csi_tick;
#endif
}
void tick_irq_handler(void *arg)
{
csi_tick_increase();
csi_coret_config((soc_get_coretim_freq() / RT_TICK_PER_SECOND), CORET_IRQn);
#if CONFIG_AOS_OSAL
extern void aos_sys_tick_handler(void);
aos_sys_tick_handler();
#else
#ifdef CONFIG_KERNEL_FREERTOS
extern void xPortSysTickHandler(void);
xPortSysTickHandler();
#elif defined(CONFIG_KERNEL_RTTHREAD)
extern void rt_tick_increase(void);
rt_tick_increase();
#else
#endif
#endif /* end CONFIG_AOS_OSAL */
}
csi_error_t csi_tick_init(void)
{
#if CONFIG_CPU_XUANTIE_E9XX || CONFIG_INTC_CLIC_PLIC
tick_dev.irq_num = CORET_IRQn;
csi_vic_set_prio(tick_dev.irq_num, 31U);
csi_irq_attach(tick_dev.irq_num, &tick_irq_handler, &tick_dev);
#endif
#if defined(CONFIG_SMP) && CONFIG_SMP
csi_tick[csi_get_cpu_id()] = 0;
#else
csi_tick = 0U;
#endif
timer_init_value = csi_coret_get_value2();
csi_coret_reset_value2();
csi_coret_config((soc_get_coretim_freq() / RT_TICK_PER_SECOND), CORET_IRQn);
csi_coret_irq_enable();
return CSI_OK;
}
void csi_tick_uninit(void)
{
csi_coret_irq_disable();
#if CONFIG_CPU_XUANTIE_E9XX || CONFIG_INTC_CLIC_PLIC
csi_irq_detach(tick_dev.irq_num);
#endif
}
uint32_t csi_tick_get_ms(void)
{
uint32_t time;
time = (uint32_t)((csi_coret_get_value2() - timer_init_value) * 1000U / (uint64_t)soc_get_coretim_freq());
last_time_ms = time;
return time;
}
uint64_t csi_tick_get_us(void)
{
uint64_t time;
time = (csi_coret_get_value2() - timer_init_value) * 1000U * 1000U / (uint64_t)soc_get_coretim_freq();
last_time_us = time;
return time;
}
static void _mdelay(void)
{
uint64_t start = csi_coret_get_value2();
uint64_t cur;
uint32_t cnt = (soc_get_coretim_freq() / 1000U);
while (1) {
cur = csi_coret_get_value2();
if (start > cur) {
if ((start - cur) >= cnt) {
break;
}
} else {
if (cur - start >= cnt) {
break;
}
}
}
}
static void _10udelay(void)
{
uint64_t cur;
uint64_t start = csi_coret_get_value2();
uint32_t cnt = (soc_get_coretim_freq() / 1000U / 100U);
while (1) {
cur = csi_coret_get_value2();
if (start > cur) {
if ((start - cur) >= cnt) {
break;
}
} else {
if (cur - start >= cnt) {
break;
}
}
}
}
__WEAK void mdelay(uint32_t ms)
{
while (ms) {
ms--;
_mdelay();
}
}
/**
* Ps: At least delay over 10us
*/
void udelay(uint32_t us)
{
us /= 10U;
while (us) {
us--;
_10udelay();
}
}
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