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587a51241c
Some converters require an external signal to start the conversion. This patch adds support to the bfintmr trigger driver to generate such a signal. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
24 lines
943 B
C
24 lines
943 B
C
#ifndef __IIO_BFIN_TIMER_TRIGGER_H__
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#define __IIO_BFIN_TIMER_TRIGGER_H__
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/**
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* struct iio_bfin_timer_trigger_pdata - timer trigger platform data
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* @output_enable: Enable external trigger pulse generation.
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* @active_low: Whether the trigger pulse is active low.
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* @duty_ns: Length of the trigger pulse in nanoseconds.
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*
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* This struct is used to configure the output pulse generation of the blackfin
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* timer trigger. If output_enable is set to true an external trigger signal
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* will generated on the pin corresponding to the timer. This is useful for
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* converters which needs an external signal to start conversion. active_low and
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* duty_ns are used to configure the type of the trigger pulse. If output_enable
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* is set to false no external trigger pulse will be generated and active_low
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* and duty_ns are ignored.
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**/
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struct iio_bfin_timer_trigger_pdata {
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bool output_enable;
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bool active_low;
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unsigned int duty_ns;
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};
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#endif
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