91e62f4e37
timer group interrupt enable is controled by level_int_ena instead of int_ena Closes https://github.com/espressif/esp-idf/issues/5103
129 lines
3.7 KiB
C
129 lines
3.7 KiB
C
// Copyright 2015-2019 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#pragma once
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdint.h>
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#include <stdbool.h>
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#include <esp_bit_defs.h>
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#include "soc/timer_group_caps.h"
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#include "esp_attr.h"
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/**
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* @brief Selects a Timer-Group out of 2 available groups
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*/
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typedef enum {
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TIMER_GROUP_0 = 0, /*!<Hw timer group 0*/
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TIMER_GROUP_1 = 1, /*!<Hw timer group 1*/
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TIMER_GROUP_MAX,
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} timer_group_t;
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/**
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* @brief Select a hardware timer from timer groups
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*/
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typedef enum {
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TIMER_0 = 0, /*!<Select timer0 of GROUPx*/
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TIMER_1 = 1, /*!<Select timer1 of GROUPx*/
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TIMER_MAX,
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} timer_idx_t;
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/**
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* @brief Decides the direction of counter
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*/
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typedef enum {
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TIMER_COUNT_DOWN = 0, /*!< Descending Count from cnt.high|cnt.low*/
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TIMER_COUNT_UP = 1, /*!< Ascending Count from Zero*/
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TIMER_COUNT_MAX
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} timer_count_dir_t;
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/**
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* @brief Decides whether timer is on or paused
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*/
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typedef enum {
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TIMER_PAUSE = 0, /*!<Pause timer counter*/
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TIMER_START = 1, /*!<Start timer counter*/
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} timer_start_t;
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/**
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* @brief Interrupt types of the timer.
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*/
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//this is compatible with the value of esp32.
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typedef enum {
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TIMER_INTR_T0 = BIT(0), /*!< interrupt of timer 0 */
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TIMER_INTR_T1 = BIT(1), /*!< interrupt of timer 1 */
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TIMER_INTR_WDT = BIT(2), /*!< interrupt of watchdog */
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TIMER_INTR_NONE = 0
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} timer_intr_t;
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FLAG_ATTR(timer_intr_t)
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/**
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* @brief Decides whether to enable alarm mode
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*/
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typedef enum {
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TIMER_ALARM_DIS = 0, /*!< Disable timer alarm*/
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TIMER_ALARM_EN = 1, /*!< Enable timer alarm*/
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TIMER_ALARM_MAX
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} timer_alarm_t;
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/**
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* @brief Select interrupt type if running in alarm mode.
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*/
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typedef enum {
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TIMER_INTR_LEVEL = 0, /*!< Interrupt mode: level mode*/
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//TIMER_INTR_EDGE = 1, /*!< Interrupt mode: edge mode, Not supported Now*/
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TIMER_INTR_MAX
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} timer_intr_mode_t;
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/**
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* @brief Select if Alarm needs to be loaded by software or automatically reload by hardware.
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*/
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typedef enum {
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TIMER_AUTORELOAD_DIS = 0, /*!< Disable auto-reload: hardware will not load counter value after an alarm event*/
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TIMER_AUTORELOAD_EN = 1, /*!< Enable auto-reload: hardware will load counter value after an alarm event*/
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TIMER_AUTORELOAD_MAX,
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} timer_autoreload_t;
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#ifdef SOC_TIMER_GROUP_SUPPORT_XTAL
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/**
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* @brief Select timer source clock.
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*/
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typedef enum {
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TIMER_SRC_CLK_APB = 0, /*!< Select APB as the source clock*/
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TIMER_SRC_CLK_XTAL = 1, /*!< Select XTAL as the source clock*/
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} timer_src_clk_t;
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#endif
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/**
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* @brief Data structure with timer's configuration settings
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*/
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typedef struct {
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timer_alarm_t alarm_en; /*!< Timer alarm enable */
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timer_start_t counter_en; /*!< Counter enable */
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timer_intr_mode_t intr_type; /*!< Interrupt mode */
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timer_count_dir_t counter_dir; /*!< Counter direction */
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timer_autoreload_t auto_reload; /*!< Timer auto-reload */
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uint32_t divider; /*!< Counter clock divider. The divider's range is from from 2 to 65536. */
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#ifdef SOC_TIMER_GROUP_SUPPORT_XTAL
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timer_src_clk_t clk_src; /*!< Use XTAL as source clock. */
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#endif
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} timer_config_t;
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#ifdef __cplusplus
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}
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#endif
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