driver_ledc_port.c File Reference

#include "../vsf_espidf_cfg.h"
#include "driver/ledc.h"
#include "../vsf_espidf.h"
#include "kernel/vsf_kernel.h"
#include "hal/driver/driver.h"
#include <string.h>

Data Structures
struct	__ledc_timer_state_t
struct	__ledc_channel_state_t
struct	__ledc_mode_state_t

Typedefs
typedef struct __ledc_timer_state_t	__ledc_timer_state_t
typedef struct __ledc_channel_state_t	__ledc_channel_state_t
typedef struct __ledc_mode_state_t	__ledc_mode_state_t

Functions
void	vsf_espidf_ledc_init (const vsf_espidf_ledc_cfg_t *cfg)
esp_err_t	ledc_timer_config (const ledc_timer_config_t *timer_conf)
	Configure an LEDC timer (counter frequency + resolution).
esp_err_t	ledc_channel_config (const ledc_channel_config_t *ledc_conf)
	Configure an LEDC channel (duty + timer binding).
esp_err_t	ledc_set_duty (ledc_mode_t speed_mode, ledc_channel_t channel, uint32_t duty)
	Set duty cycle value for a channel.
esp_err_t	ledc_update_duty (ledc_mode_t speed_mode, ledc_channel_t channel)
	Apply the previously cached duty of a channel to hardware.
esp_err_t	ledc_set_duty_with_hpoint (ledc_mode_t speed_mode, ledc_channel_t channel, uint32_t duty, uint32_t hpoint)
	Set duty + hpoint and apply in one call (ESP-IDF v5.x helper).
uint32_t	ledc_get_duty (ledc_mode_t speed_mode, ledc_channel_t channel)
	Get current duty cycle of a channel.
int	ledc_get_hpoint (ledc_mode_t speed_mode, ledc_channel_t channel)
	Get hpoint of a channel. Always returns 0 on this shim.
esp_err_t	ledc_set_freq (ledc_mode_t speed_mode, ledc_timer_t timer_num, uint32_t freq_hz)
	Re-program the timer frequency.
uint32_t	ledc_get_freq (ledc_mode_t speed_mode, ledc_timer_t timer_num)
	Get the configured frequency of a timer.
esp_err_t	ledc_stop (ledc_mode_t speed_mode, ledc_channel_t channel, uint32_t idle_level)
	Stop a channel's output and hold it at the given idle level.
esp_err_t	ledc_timer_pause (ledc_mode_t speed_mode, ledc_timer_t timer_num)
	Pause a timer. Accepted but reduces to a channel-level stop on this shim.
esp_err_t	ledc_timer_resume (ledc_mode_t speed_mode, ledc_timer_t timer_num)
	Resume a timer. Accepted but reduces to an internal re-enable on this shim.
esp_err_t	ledc_timer_rst (ledc_mode_t speed_mode, ledc_timer_t timer_num)
	Reset a timer. Accepted but no-op on this shim.
esp_err_t	ledc_bind_channel_timer (ledc_mode_t speed_mode, ledc_channel_t channel, ledc_timer_t timer_sel)
	Bind a channel to a timer.
esp_err_t	ledc_fade_func_install (int intr_alloc_flags)
	Install the fade service. Returns ESP_ERR_NOT_SUPPORTED.
void	ledc_fade_func_uninstall (void)
	Uninstall the fade service. No-op on this shim.

Typedef Documentation

__ledc_timer_state_t

typedef struct __ledc_timer_state_t __ledc_timer_state_t

__ledc_channel_state_t

typedef struct __ledc_channel_state_t __ledc_channel_state_t

__ledc_mode_state_t

typedef struct __ledc_mode_state_t __ledc_mode_state_t

Function Documentation

vsf_espidf_ledc_init()

void vsf_espidf_ledc_init ( const vsf_espidf_ledc_cfg_t *  cfg )

extern

ledc_timer_config()

esp_err_t ledc_timer_config

(

const ledc_timer_config_t *

timer_conf

)

Configure an LEDC timer (counter frequency + resolution).

ledc_channel_config()

esp_err_t ledc_channel_config

(

const ledc_channel_config_t *

ledc_conf

)

Configure an LEDC channel (duty + timer binding).

ledc_set_duty()

esp_err_t ledc_set_duty	(	ledc_mode_t	speed_mode,
		ledc_channel_t	channel,
		uint32_t	duty
	)

Set duty cycle value for a channel.

Note

Call ledc_update_duty() to apply.

ledc_update_duty()

esp_err_t ledc_update_duty	(	ledc_mode_t	speed_mode,
		ledc_channel_t	channel
	)

Apply the previously cached duty of a channel to hardware.

ledc_set_duty_with_hpoint()

esp_err_t ledc_set_duty_with_hpoint	(	ledc_mode_t	speed_mode,
		ledc_channel_t	channel,
		uint32_t	duty,
		uint32_t	hpoint
	)

Set duty + hpoint and apply in one call (ESP-IDF v5.x helper).

ledc_get_duty()

uint32_t ledc_get_duty	(	ledc_mode_t	speed_mode,
		ledc_channel_t	channel
	)

Get current duty cycle of a channel.

Returns

duty value, or -1 on invalid argument.

ledc_get_hpoint()

int ledc_get_hpoint	(	ledc_mode_t	speed_mode,
		ledc_channel_t	channel
	)

Get hpoint of a channel. Always returns 0 on this shim.

ledc_set_freq()

esp_err_t ledc_set_freq	(	ledc_mode_t	speed_mode,
		ledc_timer_t	timer_num,
		uint32_t	freq_hz
	)

Re-program the timer frequency.

ledc_get_freq()

uint32_t ledc_get_freq	(	ledc_mode_t	speed_mode,
		ledc_timer_t	timer_num
	)

Get the configured frequency of a timer.

Returns

frequency in Hz, or 0 if not configured.

ledc_stop()

esp_err_t ledc_stop	(	ledc_mode_t	speed_mode,
		ledc_channel_t	channel,
		uint32_t	idle_level
	)

Stop a channel's output and hold it at the given idle level.

ledc_timer_pause()

esp_err_t ledc_timer_pause	(	ledc_mode_t	speed_mode,
		ledc_timer_t	timer_num
	)

Pause a timer. Accepted but reduces to a channel-level stop on this shim.

ledc_timer_resume()

esp_err_t ledc_timer_resume	(	ledc_mode_t	speed_mode,
		ledc_timer_t	timer_num
	)

Resume a timer. Accepted but reduces to an internal re-enable on this shim.

ledc_timer_rst()

esp_err_t ledc_timer_rst	(	ledc_mode_t	speed_mode,
		ledc_timer_t	timer_num
	)

Reset a timer. Accepted but no-op on this shim.

ledc_bind_channel_timer()

esp_err_t ledc_bind_channel_timer	(	ledc_mode_t	speed_mode,
		ledc_channel_t	channel,
		ledc_timer_t	timer_sel
	)

Bind a channel to a timer.

ledc_fade_func_install()

esp_err_t ledc_fade_func_install

(

int

intr_alloc_flags

)

Install the fade service. Returns ESP_ERR_NOT_SUPPORTED.

ledc_fade_func_uninstall()

void ledc_fade_func_uninstall

(

void

)

Uninstall the fade service. No-op on this shim.

Variable Documentation

inited

bool inited

pool_count

uint16_t pool_count

pool

vsf_pwm_t* const* pool

modes

__ledc_mode_state_t modes[LEDC_SPEED_MODE_MAX]