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1adc6240a8
TCB hardware is capable of capturing the timer value to registers RA and RB. Add these registers as capture extensions. Signed-off-by: Bence Csókás <csokas.bence@prolan.hu> Link: https://lore.kernel.org/r/20250306134441.582819-3-csokas.bence@prolan.hu Signed-off-by: William Breathitt Gray <wbg@kernel.org>
41 lines
973 B
C
41 lines
973 B
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/*
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* Channel numbers used by the microchip-tcb-capture driver
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* Copyright (C) 2025 Bence Csókás
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*/
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#ifndef _UAPI_COUNTER_MCHP_TCB_H_
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#define _UAPI_COUNTER_MCHP_TCB_H_
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/*
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* The driver defines the following components:
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*
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* Count 0
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* \__ Synapse 0 -- Signal 0 (Channel A, i.e. TIOA)
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* \__ Synapse 1 -- Signal 1 (Channel B, i.e. TIOB)
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* \__ Extension capture0 (RA register)
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* \__ Extension capture1 (RB register)
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*
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* It also supports the following events:
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*
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* Channel 0:
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* - CV register changed
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* - CV overflowed
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* - RA captured
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* Channel 1:
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* - RB captured
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* Channel 2:
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* - RC compare triggered
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*/
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/* Capture extensions */
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#define COUNTER_MCHP_EXCAP_RA 0
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#define COUNTER_MCHP_EXCAP_RB 1
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/* Event channels */
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#define COUNTER_MCHP_EVCHN_CV 0
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#define COUNTER_MCHP_EVCHN_RA 0
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#define COUNTER_MCHP_EVCHN_RB 1
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#define COUNTER_MCHP_EVCHN_RC 2
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#endif /* _UAPI_COUNTER_MCHP_TCB_H_ */
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