60 lines
2.2 KiB
C
60 lines
2.2 KiB
C
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/*
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* Copyright (c) 2021-2022, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2022-06-02 supperthomas first version
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*/
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#include <rtthread.h>
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#include "hal/systimer_hal.h"
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#include "hal/systimer_ll.h"
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#include "esp_private/panic_internal.h"
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#include "esp_private/systimer.h"
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#include "esp_private/periph_ctrl.h"
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#include "esp_intr_alloc.h"
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#include "esp_attr.h"
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static systimer_hal_context_t systimer_hal;
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IRAM_ATTR void rt_SysTickIsrHandler(void *arg)
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{
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systimer_ll_clear_alarm_int(systimer_hal.dev, SYSTIMER_LL_ALARM_OS_TICK_CORE0);
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rt_interrupt_enter();
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rt_tick_increase();
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rt_interrupt_leave();
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}
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void rt_hw_systick_init(void)
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{
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esp_intr_alloc(ETS_SYSTIMER_TARGET0_EDGE_INTR_SOURCE, ESP_INTR_FLAG_IRAM | ESP_INTR_FLAG_LEVEL1, rt_SysTickIsrHandler, &systimer_hal, NULL);
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periph_module_enable(PERIPH_SYSTIMER_MODULE);
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systimer_hal_init(&systimer_hal);
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systimer_hal_tick_rate_ops_t ops = {
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.ticks_to_us = systimer_ticks_to_us,
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.us_to_ticks = systimer_us_to_ticks,
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};
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systimer_hal_set_tick_rate_ops(&systimer_hal, &ops);
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systimer_ll_set_counter_value(systimer_hal.dev, SYSTIMER_LL_COUNTER_OS_TICK, 0);
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systimer_ll_apply_counter_value(systimer_hal.dev, SYSTIMER_LL_COUNTER_OS_TICK);
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systimer_hal_connect_alarm_counter(&systimer_hal, SYSTIMER_LL_ALARM_OS_TICK_CORE0, SYSTIMER_LL_COUNTER_OS_TICK);
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systimer_hal_set_alarm_period(&systimer_hal, SYSTIMER_LL_ALARM_OS_TICK_CORE0, 1000000UL / RT_TICK_PER_SECOND);
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systimer_hal_select_alarm_mode(&systimer_hal, SYSTIMER_LL_ALARM_OS_TICK_CORE0, SYSTIMER_ALARM_MODE_PERIOD);
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systimer_hal_counter_can_stall_by_cpu(&systimer_hal, 1, 0, true);
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systimer_hal_enable_alarm_int(&systimer_hal, SYSTIMER_LL_ALARM_OS_TICK_CORE0);
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systimer_hal_enable_counter(&systimer_hal, SYSTIMER_LL_COUNTER_OS_TICK);
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}
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void rt_hw_board_init(void)
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{
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rt_hw_systick_init();
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/* Board underlying hardware initialization */
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#ifdef RT_USING_COMPONENTS_INIT
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rt_components_board_init();
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#endif
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#if defined(RT_USING_CONSOLE) && defined(RT_USING_DEVICE)
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rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
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#endif
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}
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