46 lines
1.4 KiB
Plaintext
46 lines
1.4 KiB
Plaintext
# Copyright (c) 2014-2015 Wind River Systems, Inc.
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# Copyright (c) 2016 Cadence Design Systems, Inc.
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# Copyright (c) 2019 Intel Corp.
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# SPDX-License-Identifier: Apache-2.0
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config NRF_RTC_TIMER
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bool "nRF Real Time Counter (NRF_RTC1) Timer"
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depends on CLOCK_CONTROL
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depends on SOC_COMPATIBLE_NRF
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select TICKLESS_CAPABLE
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select SYSTEM_TIMER_HAS_DISABLE_SUPPORT
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depends on !$(dt_nodelabel_enabled,rtc1)
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help
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This module implements a kernel device driver for the nRF Real Time
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Counter NRF_RTC1 and provides the standard "system clock driver"
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interfaces.
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if NRF_RTC_TIMER
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config NRF_RTC_TIMER_USER_CHAN_COUNT
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int "Additional channels that can be used"
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default 2 if NRF_802154_RADIO_DRIVER && SOC_COMPATIBLE_NRF5340_CPUNET
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default 3 if NRF_802154_RADIO_DRIVER
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default 0
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help
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Use nrf_rtc_timer.h API. Driver is not managing allocation of channels.
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config NRF_RTC_TIMER_LOCK_ZERO_LATENCY_IRQS
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# hidden option
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bool
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depends on ZERO_LATENCY_IRQS
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default y if !BT_LL_SW_SPLIT
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help
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Enable use of __disable_irq() to disable Zero Latency IRQs to prevent
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higher priority contexts (including ZLIs) that might preempt the
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handler and call nrf_rtc_timer API from destroying the internal state
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in nrf_rtc_timer.
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config NRF_RTC_TIMER_TRIGGER_OVERFLOW
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bool "Trigger overflow"
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help
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When enabled, a function can be used to trigger RTC overflow and
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effectively shift time into the future.
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endif # NRF_RTC_TIMER
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