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75 lines
2.2 KiB
C
75 lines
2.2 KiB
C
/*
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* SPDX-FileCopyrightText: 2023-2025 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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// Attention: Timer Group has 3 independent functions: General Purpose Timer, Watchdog Timer and Clock calibration.
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#pragma once
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#include <stdbool.h>
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#include "hal/assert.h"
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#include "hal/misc.h"
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#include "soc/timer_group_struct.h"
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#include "soc/pcr_struct.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Enable the bus clock for timer group module
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*
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* @param group_id Group ID
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* @param enable true to enable, false to disable
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*/
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static inline void _timg_ll_enable_bus_clock(int group_id, bool enable)
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{
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if (group_id == 0) {
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PCR.timergroup0_conf.tg0_clk_en = enable;
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} else {
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PCR.timergroup1_conf.tg1_clk_en = enable;
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}
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}
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/// use a macro to wrap the function, force the caller to use it in a critical section
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/// the critical section needs to declare the __DECLARE_RCC_RC_ATOMIC_ENV variable in advance
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#define timg_ll_enable_bus_clock(...) do { \
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(void)__DECLARE_RCC_RC_ATOMIC_ENV; \
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_timg_ll_enable_bus_clock(__VA_ARGS__); \
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} while(0)
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/**
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* @brief Reset the timer group module
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*
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* @note After reset the register, the "flash boot protection" will be enabled again.
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* FLash boot protection is not used anymore after system boot up.
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* This function will disable it by default in order to prevent the system from being reset unexpectedly.
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*
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* @param group_id Group ID
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*/
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static inline void _timg_ll_reset_register(int group_id)
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{
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if (group_id == 0) {
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PCR.timergroup0_conf.tg0_rst_en = 1;
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PCR.timergroup0_conf.tg0_rst_en = 0;
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TIMERG0.wdtconfig0.wdt_flashboot_mod_en = 0;
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} else {
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PCR.timergroup1_conf.tg1_rst_en = 1;
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PCR.timergroup1_conf.tg1_rst_en = 0;
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TIMERG1.wdtconfig0.wdt_flashboot_mod_en = 0;
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}
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}
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/// use a macro to wrap the function, force the caller to use it in a critical section
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/// the critical section needs to declare the __DECLARE_RCC_RC_ATOMIC_ENV variable in advance
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#define timg_ll_reset_register(...) do { \
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(void)__DECLARE_RCC_RC_ATOMIC_ENV; \
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_timg_ll_reset_register(__VA_ARGS__); \
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} while(0)
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#ifdef __cplusplus
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}
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#endif
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