pwm.c File Reference

flink userspace library, subdevice function "pwm". More...

#include "flinklib.h"
#include "types.h"
#include "error.h"
#include "log.h"

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Functions
int	flink_pwm_get_baseclock (flink_subdev *subdev, uint32_t *frequency)
	Reads the base clock of a PWM subdevice. More...
int	flink_pwm_set_period (flink_subdev *subdev, uint32_t channel, uint32_t period)
	Sets the PWM period. More...
int	flink_pwm_get_period (flink_subdev *subdev, uint32_t channel, uint32_t *period)
	Gets the PWM period. More...
int	flink_pwm_set_hightime (flink_subdev *subdev, uint32_t channel, uint32_t hightime)
	Sets the PWM hightime. More...
int	flink_pwm_get_hightime (flink_subdev *subdev, uint32_t channel, uint32_t *hightime)
	Gets the PWM hightime. More...

Detailed Description

flink userspace library, subdevice function "pwm".

Contains the high-level functions for a flink subdevice which realizes the function "pwm".

Author

Martin Züger

Definition in file pwm.c.

Function Documentation

int flink_pwm_get_baseclock	(	flink_subdev *	subdev,
		uint32_t *	frequency
	)

Reads the base clock of a PWM subdevice.

Parameters

subdev	Subdevice.
frequency	Contains the base clock in Hz.

Returns

int: 0 on success, -1 in case of failure.

Definition at line 35 of file pwm.c.

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int flink_pwm_get_hightime	(	flink_subdev *	subdev,
		uint32_t	channel,
		uint32_t *	hightime
	)

Gets the PWM hightime.

Parameters

subdev	Subdevice.
channel	Channel number.
*hightime	Hightime of the PWM signal in multiples of the base clock.

Returns

int: 0 on success, -1 in case of failure.

Definition at line 126 of file pwm.c.

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int flink_pwm_get_period	(	flink_subdev *	subdev,
		uint32_t	channel,
		uint32_t *	period
	)

Gets the PWM period.

Parameters

subdev	Subdevice.
channel	Channel number.
*period	Period of the PWM signal in multiples of the base clock.

Returns

int: 0 on success, -1 in case of failure.

Definition at line 80 of file pwm.c.

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int flink_pwm_set_hightime	(	flink_subdev *	subdev,
		uint32_t	channel,
		uint32_t	hightime
	)

Sets the PWM hightime.

Parameters

subdev	Subdevice.
channel	Channel number.
hightime	Hightime of the PWM signal in multiples of the base clock.

Returns

int: 0 on success, -1 in case of failure.

Definition at line 104 of file pwm.c.

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int flink_pwm_set_period	(	flink_subdev *	subdev,
		uint32_t	channel,
		uint32_t	period
	)

Sets the PWM period.

Parameters

subdev	Subdevice.
channel	Channel number.
period	Period of the PWM signal in multiples of the base clock.

Returns

int: 0 on success, -1 in case of failure.

Definition at line 57 of file pwm.c.

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