e65c26f413
This is in preparation for a subsequent patch implementing a character device interface for the Counter subsystem. Reviewed-by: David Lechner <david@lechnology.com> Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> Link: https://lore.kernel.org/r/962a5f2027fafcf4f77c10e1baf520463960d1ee.1632884256.git.vilhelm.gray@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
56 lines
1.3 KiB
C
56 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/*
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* Userspace ABI for Counter character devices
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* Copyright (C) 2020 William Breathitt Gray
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*/
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#ifndef _UAPI_COUNTER_H_
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#define _UAPI_COUNTER_H_
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/* Component scope definitions */
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enum counter_scope {
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COUNTER_SCOPE_DEVICE,
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COUNTER_SCOPE_SIGNAL,
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COUNTER_SCOPE_COUNT,
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};
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/* Count direction values */
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enum counter_count_direction {
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COUNTER_COUNT_DIRECTION_FORWARD,
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COUNTER_COUNT_DIRECTION_BACKWARD,
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};
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/* Count mode values */
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enum counter_count_mode {
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COUNTER_COUNT_MODE_NORMAL,
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COUNTER_COUNT_MODE_RANGE_LIMIT,
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COUNTER_COUNT_MODE_NON_RECYCLE,
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COUNTER_COUNT_MODE_MODULO_N,
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};
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/* Count function values */
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enum counter_function {
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COUNTER_FUNCTION_INCREASE,
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COUNTER_FUNCTION_DECREASE,
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COUNTER_FUNCTION_PULSE_DIRECTION,
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COUNTER_FUNCTION_QUADRATURE_X1_A,
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COUNTER_FUNCTION_QUADRATURE_X1_B,
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COUNTER_FUNCTION_QUADRATURE_X2_A,
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COUNTER_FUNCTION_QUADRATURE_X2_B,
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COUNTER_FUNCTION_QUADRATURE_X4,
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};
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/* Signal values */
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enum counter_signal_level {
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COUNTER_SIGNAL_LEVEL_LOW,
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COUNTER_SIGNAL_LEVEL_HIGH,
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};
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/* Action mode values */
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enum counter_synapse_action {
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COUNTER_SYNAPSE_ACTION_NONE,
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COUNTER_SYNAPSE_ACTION_RISING_EDGE,
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COUNTER_SYNAPSE_ACTION_FALLING_EDGE,
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COUNTER_SYNAPSE_ACTION_BOTH_EDGES,
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};
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#endif /* _UAPI_COUNTER_H_ */
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