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502 lines
17 KiB
C
502 lines
17 KiB
C
/*
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* SPDX-FileCopyrightText: 2020-2021 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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// The LL layer for LEDC register operations.
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// Note that most of the register operations in this layer are non-atomic operations.
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#pragma once
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#include "hal/ledc_types.h"
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#include "soc/ledc_periph.h"
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#include "soc/ledc_struct.h"
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#include "hal/assert.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define LEDC_LL_GET_HW() &LEDC
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#define LEDC_LL_DUTY_NUM_MAX (LEDC_DUTY_NUM_LSCH0_V)
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#define LEDC_LL_DUTY_CYCLE_MAX (LEDC_DUTY_CYCLE_LSCH0_V)
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#define LEDC_LL_DUTY_SCALE_MAX (LEDC_DUTY_SCALE_LSCH0_V)
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#define LEDC_LL_HPOINT_VAL_MAX (LEDC_HPOINT_LSCH0_V)
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#define LEDC_LL_FRACTIONAL_BITS (8)
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#define LEDC_LL_FRACTIONAL_MAX ((1 << LEDC_LL_FRACTIONAL_BITS) - 1)
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#define LEDC_LL_GLOBAL_CLOCKS { \
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LEDC_SLOW_CLK_APB, \
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LEDC_SLOW_CLK_XTAL, \
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LEDC_SLOW_CLK_RTC8M, \
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}
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/**
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* @brief Set LEDC low speed timer clock
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*
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* @param hw Beginning address of the peripheral registers
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* @param slow_clk_sel LEDC low speed timer clock source
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*
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* @return None
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*/
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static inline void ledc_ll_set_slow_clk_sel(ledc_dev_t *hw, ledc_slow_clk_sel_t slow_clk_sel)
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{
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uint32_t clk_sel_val = 0;
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if (slow_clk_sel == LEDC_SLOW_CLK_APB) {
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clk_sel_val = 1;
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} else if (slow_clk_sel == LEDC_SLOW_CLK_RTC8M) {
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clk_sel_val = 2;
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} else if (slow_clk_sel == LEDC_SLOW_CLK_XTAL) {
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clk_sel_val = 3;
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}
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hw->conf.apb_clk_sel = clk_sel_val;
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}
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/**
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* @brief Get LEDC low speed timer clock
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*
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* @param hw Beginning address of the peripheral registers
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* @param slow_clk_sel LEDC low speed timer clock source
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*
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* @return None
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*/
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static inline void ledc_ll_get_slow_clk_sel(ledc_dev_t *hw, ledc_slow_clk_sel_t *slow_clk_sel)
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{
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uint32_t clk_sel_val = hw->conf.apb_clk_sel;
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if (clk_sel_val == 1) {
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*slow_clk_sel = LEDC_SLOW_CLK_APB;
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} else if (clk_sel_val == 2) {
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*slow_clk_sel = LEDC_SLOW_CLK_RTC8M;
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} else if (clk_sel_val == 3) {
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*slow_clk_sel = LEDC_SLOW_CLK_XTAL;
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} else {
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abort();
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}
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}
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/**
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* @brief Update LEDC low speed timer
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*
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* @param hw Beginning address of the peripheral registers
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* @param speed_mode LEDC speed_mode, high-speed mode or low-speed mode
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* @param timer_sel LEDC timer index (0-3), select from ledc_timer_t
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*
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* @return None
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*/
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static inline void ledc_ll_ls_timer_update(ledc_dev_t *hw, ledc_mode_t speed_mode, ledc_timer_t timer_sel)
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{
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hw->timer_group[speed_mode].timer[timer_sel].conf.low_speed_update = 1;
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}
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/**
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* @brief Reset LEDC timer
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*
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* @param hw Beginning address of the peripheral registers
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* @param speed_mode LEDC speed_mode, high-speed mode or low-speed mode
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* @param timer_sel LEDC timer index (0-3), select from ledc_timer_t
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*
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* @return None
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*/
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static inline void ledc_ll_timer_rst(ledc_dev_t *hw, ledc_mode_t speed_mode, ledc_timer_t timer_sel)
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{
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hw->timer_group[speed_mode].timer[timer_sel].conf.rst = 1;
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hw->timer_group[speed_mode].timer[timer_sel].conf.rst = 0;
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}
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/**
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* @brief Pause LEDC timer
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*
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* @param hw Beginning address of the peripheral registers
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* @param speed_mode LEDC speed_mode, high-speed mode or low-speed mode
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* @param timer_sel LEDC timer index (0-3), select from ledc_timer_t
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*
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* @return None
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*/
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static inline void ledc_ll_timer_pause(ledc_dev_t *hw, ledc_mode_t speed_mode, ledc_timer_t timer_sel)
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{
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hw->timer_group[speed_mode].timer[timer_sel].conf.pause = 1;
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}
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/**
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* @brief Resume LEDC timer
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*
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* @param hw Beginning address of the peripheral registers
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* @param speed_mode LEDC speed_mode, high-speed mode or low-speed mode
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* @param timer_sel LEDC timer index (0-3), select from ledc_timer_t
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*
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* @return None
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*/
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static inline void ledc_ll_timer_resume(ledc_dev_t *hw, ledc_mode_t speed_mode, ledc_timer_t timer_sel)
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{
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hw->timer_group[speed_mode].timer[timer_sel].conf.pause = 0;
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}
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/**
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* @brief Set LEDC timer clock divider
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*
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* @param hw Beginning address of the peripheral registers
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* @param speed_mode LEDC speed_mode, high-speed mode or low-speed mode
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* @param timer_sel LEDC timer index (0-3), select from ledc_timer_t
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* @param clock_divider Timer clock divide value, the timer clock is divided from the selected clock source
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*
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* @return None
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*/
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static inline void ledc_ll_set_clock_divider(ledc_dev_t *hw, ledc_mode_t speed_mode, ledc_timer_t timer_sel, uint32_t clock_divider)
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{
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hw->timer_group[speed_mode].timer[timer_sel].conf.clock_divider = clock_divider;
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}
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/**
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* @brief Get LEDC timer clock divider
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*
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* @param hw Beginning address of the peripheral registers
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* @param speed_mode LEDC speed_mode, high-speed mode or low-speed mode
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* @param timer_sel LEDC timer index (0-3), select from ledc_timer_t
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* @param clock_divider Timer clock divide value, the timer clock is divided from the selected clock source
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*
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* @return None
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*/
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static inline void ledc_ll_get_clock_divider(ledc_dev_t *hw, ledc_mode_t speed_mode, ledc_timer_t timer_sel, uint32_t *clock_divider)
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{
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*clock_divider = hw->timer_group[speed_mode].timer[timer_sel].conf.clock_divider;
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}
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/**
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* @brief Get LEDC timer clock source
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*
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* @param hw Beginning address of the peripheral registers
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* @param speed_mode LEDC speed_mode, high-speed mode or low-speed mode
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* @param timer_sel LEDC timer index (0-3), select from ledc_timer_t
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* @param clk_src Pointer to accept the timer clock source
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*
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* @return None
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*/
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static inline void ledc_ll_get_clock_source(ledc_dev_t *hw, ledc_mode_t speed_mode, ledc_timer_t timer_sel, ledc_clk_src_t *clk_src)
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{
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*clk_src = LEDC_APB_CLK;
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}
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/**
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* @brief Set LEDC duty resolution
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*
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* @param hw Beginning address of the peripheral registers
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* @param speed_mode LEDC speed_mode, high-speed mode or low-speed mode
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* @param timer_sel LEDC timer index (0-3), select from ledc_timer_t
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* @param duty_resolution Resolution of duty setting in number of bits. The range of duty values is [0, (2**duty_resolution)]
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*
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* @return None
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*/
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static inline void ledc_ll_set_duty_resolution(ledc_dev_t *hw, ledc_mode_t speed_mode, ledc_timer_t timer_sel, uint32_t duty_resolution)
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{
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hw->timer_group[speed_mode].timer[timer_sel].conf.duty_resolution = duty_resolution;
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}
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/**
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* @brief Get LEDC duty resolution
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*
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* @param hw Beginning address of the peripheral registers
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* @param speed_mode LEDC speed_mode, high-speed mode or low-speed mode
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* @param timer_sel LEDC timer index (0-3), select from ledc_timer_t
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* @param duty_resolution Pointer to accept the resolution of duty setting in number of bits.
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*
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* @return None
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*/
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static inline void ledc_ll_get_duty_resolution(ledc_dev_t *hw, ledc_mode_t speed_mode, ledc_timer_t timer_sel, uint32_t *duty_resolution)
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{
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*duty_resolution = hw->timer_group[speed_mode].timer[timer_sel].conf.duty_resolution;
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}
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/**
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* @brief Update channel configure when select low speed mode
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*
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* @param hw Beginning address of the peripheral registers
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* @param speed_mode LEDC speed_mode, high-speed mode or low-speed mode
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* @param channel_num LEDC channel index (0-7), select from ledc_channel_t
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*
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* @return None
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*/
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static inline void ledc_ll_ls_channel_update(ledc_dev_t *hw, ledc_mode_t speed_mode, ledc_channel_t channel_num)
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{
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hw->channel_group[speed_mode].channel[channel_num].conf0.low_speed_update = 1;
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}
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/**
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* @brief Get LEDC max duty
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*
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* @param hw Beginning address of the peripheral registers
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* @param speed_mode LEDC speed_mode, high-speed mode or low-speed mode
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* @param channel_num LEDC channel index (0-7), select from ledc_channel_t
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* @param max_duty Pointer to accept the max duty
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*
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* @return None
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*/
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static inline void ledc_ll_get_max_duty(ledc_dev_t *hw, ledc_mode_t speed_mode, ledc_channel_t channel_num, uint32_t *max_duty)
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{
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uint32_t timer_sel = hw->channel_group[speed_mode].channel[channel_num].conf0.timer_sel;
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*max_duty = (1 << (LEDC.timer_group[speed_mode].timer[timer_sel].conf.duty_resolution));
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}
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/**
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* @brief Set LEDC hpoint value
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*
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* @param hw Beginning address of the peripheral registers
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* @param speed_mode LEDC speed_mode, high-speed mode or low-speed mode
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* @param channel_num LEDC channel index (0-7), select from ledc_channel_t
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* @param hpoint_val LEDC hpoint value(max: 0xfffff)
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*
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* @return None
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*/
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static inline void ledc_ll_set_hpoint(ledc_dev_t *hw, ledc_mode_t speed_mode, ledc_channel_t channel_num, uint32_t hpoint_val)
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{
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hw->channel_group[speed_mode].channel[channel_num].hpoint.hpoint = hpoint_val;
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}
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/**
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* @brief Get LEDC hpoint value
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*
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* @param hw Beginning address of the peripheral registers
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* @param speed_mode LEDC speed_mode, high-speed mode or low-speed mode
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* @param channel_num LEDC channel index (0-7), select from ledc_channel_t
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* @param hpoint_val Pointer to accept the LEDC hpoint value(max: 0xfffff)
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*
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* @return None
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*/
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static inline void ledc_ll_get_hpoint(ledc_dev_t *hw, ledc_mode_t speed_mode, ledc_channel_t channel_num, uint32_t *hpoint_val)
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{
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*hpoint_val = hw->channel_group[speed_mode].channel[channel_num].hpoint.hpoint;
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}
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/**
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* @brief Set LEDC the integer part of duty value
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*
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* @param hw Beginning address of the peripheral registers
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* @param speed_mode LEDC speed_mode, high-speed mode or low-speed mode
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* @param channel_num LEDC channel index (0-7), select from ledc_channel_t
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* @param duty_val LEDC duty value, the range of duty setting is [0, (2**duty_resolution)]
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*
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* @return None
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*/
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static inline void ledc_ll_set_duty_int_part(ledc_dev_t *hw, ledc_mode_t speed_mode, ledc_channel_t channel_num, uint32_t duty_val)
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{
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hw->channel_group[speed_mode].channel[channel_num].duty.duty = duty_val << 4;
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}
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/**
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* @brief Get LEDC duty value
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*
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* @param hw Beginning address of the peripheral registers
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* @param speed_mode LEDC speed_mode, high-speed mode or low-speed mode
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* @param channel_num LEDC channel index (0-7), select from ledc_channel_t
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* @param duty_val Pointer to accept the LEDC duty value
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*
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* @return None
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*/
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static inline void ledc_ll_get_duty(ledc_dev_t *hw, ledc_mode_t speed_mode, ledc_channel_t channel_num, uint32_t *duty_val)
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{
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*duty_val = (hw->channel_group[speed_mode].channel[channel_num].duty_rd.duty_read >> 4);
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}
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/**
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* @brief Set LEDC duty change direction
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*
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* @param hw Beginning address of the peripheral registers
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* @param speed_mode LEDC speed_mode, high-speed mode or low-speed mode
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* @param channel_num LEDC channel index (0-7), select from ledc_channel_t
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* @param duty_direction LEDC duty change direction, increase or decrease
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*
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* @return None
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*/
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static inline void ledc_ll_set_duty_direction(ledc_dev_t *hw, ledc_mode_t speed_mode, ledc_channel_t channel_num, ledc_duty_direction_t duty_direction)
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{
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hw->channel_group[speed_mode].channel[channel_num].conf1.duty_inc = duty_direction;
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}
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/**
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* @brief Get LEDC duty change direction
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*
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* @param hw Beginning address of the peripheral registers
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* @param speed_mode LEDC speed_mode, high-speed mode or low-speed mode
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* @param channel_num LEDC channel index (0-7), select from ledc_channel_t
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* @param duty_direction Pointer to accept the LEDC duty change direction, increase or decrease
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*
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* @return None
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*/
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static inline void ledc_ll_get_duty_direction(ledc_dev_t *hw, ledc_mode_t speed_mode, ledc_channel_t channel_num, ledc_duty_direction_t *duty_direction)
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{
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*duty_direction = hw->channel_group[speed_mode].channel[channel_num].conf1.duty_inc;
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}
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/**
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* @brief Set the number of increased or decreased times
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*
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* @param hw Beginning address of the peripheral registers
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* @param speed_mode LEDC speed_mode, high-speed mode or low-speed mode
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* @param channel_num LEDC channel index (0-7), select from ledc_channel_t
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* @param duty_num The number of increased or decreased times
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*
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* @return None
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*/
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static inline void ledc_ll_set_duty_num(ledc_dev_t *hw, ledc_mode_t speed_mode, ledc_channel_t channel_num, uint32_t duty_num)
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{
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hw->channel_group[speed_mode].channel[channel_num].conf1.duty_num = duty_num;
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}
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/**
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* @brief Set the duty cycles of increase or decrease
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*
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* @param hw Beginning address of the peripheral registers
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* @param speed_mode LEDC speed_mode, high-speed mode or low-speed mode
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* @param channel_num LEDC channel index (0-7), select from ledc_channel_t
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* @param duty_cycle The duty cycles
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*
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* @return None
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*/
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static inline void ledc_ll_set_duty_cycle(ledc_dev_t *hw, ledc_mode_t speed_mode, ledc_channel_t channel_num, uint32_t duty_cycle)
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{
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hw->channel_group[speed_mode].channel[channel_num].conf1.duty_cycle = duty_cycle;
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}
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/**
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* @brief Set the step scale of increase or decrease
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*
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* @param hw Beginning address of the peripheral registers
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* @param speed_mode LEDC speed_mode, high-speed mode or low-speed mode
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* @param channel_num LEDC channel index (0-7), select from ledc_channel_t
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* @param duty_scale The step scale
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*
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* @return None
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*/
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static inline void ledc_ll_set_duty_scale(ledc_dev_t *hw, ledc_mode_t speed_mode, ledc_channel_t channel_num, uint32_t duty_scale)
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{
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hw->channel_group[speed_mode].channel[channel_num].conf1.duty_scale = duty_scale;
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}
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/**
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* @brief Set the output enable
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*
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* @param hw Beginning address of the peripheral registers
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* @param speed_mode LEDC speed_mode, high-speed mode or low-speed mode
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* @param channel_num LEDC channel index (0-7), select from ledc_channel_t
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* @param sig_out_en The output enable status
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*
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* @return None
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*/
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static inline void ledc_ll_set_sig_out_en(ledc_dev_t *hw, ledc_mode_t speed_mode, ledc_channel_t channel_num, bool sig_out_en)
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{
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hw->channel_group[speed_mode].channel[channel_num].conf0.sig_out_en = sig_out_en;
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}
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/**
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* @brief Set the duty start
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*
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* @param hw Beginning address of the peripheral registers
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* @param speed_mode LEDC speed_mode, high-speed mode or low-speed mode
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* @param channel_num LEDC channel index (0-7), select from ledc_channel_t
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* @param duty_start The duty start
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*
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* @return None
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*/
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static inline void ledc_ll_set_duty_start(ledc_dev_t *hw, ledc_mode_t speed_mode, ledc_channel_t channel_num, bool duty_start)
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{
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hw->channel_group[speed_mode].channel[channel_num].conf1.duty_start = duty_start;
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}
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/**
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* @brief Set output idle level
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*
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* @param hw Beginning address of the peripheral registers
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* @param speed_mode LEDC speed_mode, high-speed mode or low-speed mode
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* @param channel_num LEDC channel index (0-7), select from ledc_channel_t
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* @param idle_level The output idle level
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*
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* @return None
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*/
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static inline void ledc_ll_set_idle_level(ledc_dev_t *hw, ledc_mode_t speed_mode, ledc_channel_t channel_num, uint32_t idle_level)
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{
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hw->channel_group[speed_mode].channel[channel_num].conf0.idle_lv = idle_level & 0x1;
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}
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/**
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* @brief Set fade end interrupt enable
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*
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* @param hw Beginning address of the peripheral registers
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* @param speed_mode LEDC speed_mode, high-speed mode or low-speed mode
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* @param channel_num LEDC channel index (0-7), select from ledc_channel_t
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* @param fade_end_intr_en The fade end interrupt enable status
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*
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* @return None
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*/
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static inline void ledc_ll_set_fade_end_intr(ledc_dev_t *hw, ledc_mode_t speed_mode, ledc_channel_t channel_num, bool fade_end_intr_en)
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{
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uint32_t value = hw->int_ena.val;
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uint32_t int_en_base = LEDC_DUTY_CHNG_END_LSCH0_INT_ENA_S;
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hw->int_ena.val = fade_end_intr_en ? (value | BIT(int_en_base + channel_num)) : (value & (~(BIT(int_en_base + channel_num))));
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}
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|
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/**
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|
* @brief Get fade end interrupt status
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|
*
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* @param hw Beginning address of the peripheral registers
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* @param speed_mode LEDC speed_mode, high-speed mode or low-speed mode
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* @param channel_num LEDC channel index (0-7), select from ledc_channel_t
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* @param intr_status The fade end interrupt status
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|
*
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|
* @return None
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|
*/
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|
static inline void ledc_ll_get_fade_end_intr_status(ledc_dev_t *hw, ledc_mode_t speed_mode, uint32_t *intr_status)
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|
{
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|
uint32_t value = hw->int_st.val;
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|
uint32_t int_en_base = LEDC_DUTY_CHNG_END_LSCH0_INT_ENA_S;
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*intr_status = (value >> int_en_base) & 0xff;
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|
}
|
|
|
|
/**
|
|
* @brief Clear fade end interrupt status
|
|
*
|
|
* @param hw Beginning address of the peripheral registers
|
|
* @param speed_mode LEDC speed_mode, high-speed mode or low-speed mode
|
|
* @param channel_num LEDC channel index (0-7), select from ledc_channel_t
|
|
*
|
|
* @return None
|
|
*/
|
|
static inline void ledc_ll_clear_fade_end_intr_status(ledc_dev_t *hw, ledc_mode_t speed_mode, ledc_channel_t channel_num)
|
|
{
|
|
uint32_t int_en_base = LEDC_DUTY_CHNG_END_LSCH0_INT_ENA_S;
|
|
hw->int_clr.val = BIT(int_en_base + channel_num);
|
|
}
|
|
|
|
/**
|
|
* @brief Set timer index of the specified channel
|
|
*
|
|
* @param hw Beginning address of the peripheral registers
|
|
* @param speed_mode LEDC speed_mode, high-speed mode or low-speed mode
|
|
* @param channel_num LEDC channel index (0-7), select from ledc_channel_t
|
|
* @param timer_sel LEDC timer index (0-3), select from ledc_timer_t
|
|
*
|
|
* @return None
|
|
*/
|
|
static inline void ledc_ll_bind_channel_timer(ledc_dev_t *hw, ledc_mode_t speed_mode, ledc_channel_t channel_num, ledc_timer_t timer_sel)
|
|
{
|
|
hw->channel_group[speed_mode].channel[channel_num].conf0.timer_sel = timer_sel;
|
|
}
|
|
|
|
/**
|
|
* @brief Get timer index of the specified channel
|
|
*
|
|
* @param hw Beginning address of the peripheral registers
|
|
* @param speed_mode LEDC speed_mode, high-speed mode or low-speed mode
|
|
* @param channel_num LEDC channel index (0-7), select from ledc_channel_t
|
|
* @param timer_sel Pointer to accept the LEDC timer index
|
|
*
|
|
* @return None
|
|
*/
|
|
static inline void ledc_ll_get_channel_timer(ledc_dev_t *hw, ledc_mode_t speed_mode, ledc_channel_t channel_num, ledc_timer_t *timer_sel)
|
|
{
|
|
*timer_sel = hw->channel_group[speed_mode].channel[channel_num].conf0.timer_sel;
|
|
}
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|