Time-aware GPIO Interface

Time-aware GPIO Interface. More...

Enumerations
enum	tgpio_pin_polarity { TGPIO_RISING_EDGE = 0 , TGPIO_FALLING_EDGE , TGPIO_TOGGLE_EDGE }
	Event polarity. More...

Functions
int	tgpio_port_get_time (const struct device *dev, uint64_t *current_time)
	Get time from ART timer.
int	tgpio_port_get_cycles_per_second (const struct device *dev, uint32_t *cycles)
	Get current running rate.
int	tgpio_pin_disable (const struct device *dev, uint32_t pin)
	Disable operation on pin.
int	tgpio_pin_config_ext_timestamp (const struct device *dev, uint32_t pin, uint32_t event_polarity)
	Enable/Continue operation on pin.
int	tgpio_pin_periodic_output (const struct device *dev, uint32_t pin, uint64_t start_time, uint64_t repeat_interval, bool periodic_enable)
	Enable periodic pulse generation on a pin.
int	tgpio_pin_read_ts_ec (const struct device *dev, uint32_t pin, uint64_t *timestamp, uint64_t *event_count)
	Read timestamp and event counter from TGPIO.

Detailed Description

Time-aware GPIO Interface.

Since

3.5

Version

0.1.0

Enumeration Type Documentation

tgpio_pin_polarity

enum tgpio_pin_polarity

#include <zephyr/drivers/misc/timeaware_gpio/timeaware_gpio.h>

Event polarity.

Enumerator
TGPIO_RISING_EDGE
TGPIO_FALLING_EDGE
TGPIO_TOGGLE_EDGE

Function Documentation

tgpio_pin_config_ext_timestamp()

int tgpio_pin_config_ext_timestamp	(	const struct device *	dev,
		uint32_t	pin,
		uint32_t	event_polarity
	)

#include <zephyr/drivers/misc/timeaware_gpio/timeaware_gpio.h>

Enable/Continue operation on pin.

Parameters

dev	TGPIO device
pin	TGPIO pin
event_polarity	TGPIO pin event polarity

Returns

0 if successful, negative errno code on failure.

tgpio_pin_disable()

int tgpio_pin_disable	(	const struct device *	dev,
		uint32_t	pin
	)

#include <zephyr/drivers/misc/timeaware_gpio/timeaware_gpio.h>

Disable operation on pin.

Parameters

dev	TGPIO device
pin	TGPIO pin

Returns

0 if successful, negative errno code on failure.

tgpio_pin_periodic_output()

int tgpio_pin_periodic_output	(	const struct device *	dev,
		uint32_t	pin,
		uint64_t	start_time,
		uint64_t	repeat_interval,
		bool	periodic_enable
	)

#include <zephyr/drivers/misc/timeaware_gpio/timeaware_gpio.h>

Enable periodic pulse generation on a pin.

Parameters

dev	TGPIO device
pin	TGPIO pin
start_time	start_time of first pulse in hw cycles
repeat_interval	repeat interval between two pulses in hw cycles
periodic_enable	enables periodic mode if 'true' is passed.

Returns

0 if successful, negative errno code on failure.

tgpio_pin_read_ts_ec()

int tgpio_pin_read_ts_ec	(	const struct device *	dev,
		uint32_t	pin,
		uint64_t *	timestamp,
		uint64_t *	event_count
	)

#include <zephyr/drivers/misc/timeaware_gpio/timeaware_gpio.h>

Read timestamp and event counter from TGPIO.

Parameters

dev	TGPIO device
pin	TGPIO pin
timestamp	timestamp of the last pulse received
event_count	number of pulses received since the pin is enabled

Returns

0 if successful, negative errno code on failure.

tgpio_port_get_cycles_per_second()

int tgpio_port_get_cycles_per_second	(	const struct device *	dev,
		uint32_t *	cycles
	)

#include <zephyr/drivers/misc/timeaware_gpio/timeaware_gpio.h>

Get current running rate.

Parameters

dev	TGPIO device
cycles	pointer to store current running frequency

Returns

0 if successful, negative errno code on failure.

tgpio_port_get_time()

int tgpio_port_get_time	(	const struct device *	dev,
		uint64_t *	current_time
	)

#include <zephyr/drivers/misc/timeaware_gpio/timeaware_gpio.h>

Get time from ART timer.

Parameters

dev	TGPIO device
current_time	Pointer to store timer value in cycles

Returns

0 if successful

negative errno code on failure.