linux-surface/kernel/drivers/staging/iio/trigger/iio-trig-bfin-timer.h

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2017-11-06 02:38:20 +00:00
/* SPDX-License-Identifier: GPL-2.0 */
2017-08-10 13:25:24 +00:00
#ifndef __IIO_BFIN_TIMER_TRIGGER_H__
#define __IIO_BFIN_TIMER_TRIGGER_H__
/**
* struct iio_bfin_timer_trigger_pdata - timer trigger platform data
* @output_enable: Enable external trigger pulse generation.
* @active_low: Whether the trigger pulse is active low.
* @duty_ns: Length of the trigger pulse in nanoseconds.
*
* This struct is used to configure the output pulse generation of the blackfin
* timer trigger. If output_enable is set to true an external trigger signal
* will generated on the pin corresponding to the timer. This is useful for
* converters which needs an external signal to start conversion. active_low and
* duty_ns are used to configure the type of the trigger pulse. If output_enable
* is set to false no external trigger pulse will be generated and active_low
* and duty_ns are ignored.
**/
struct iio_bfin_timer_trigger_pdata {
bool output_enable;
bool active_low;
unsigned int duty_ns;
};
#endif