mirror of https://github.com/ARMmbed/mbed-os.git
58 lines
2.3 KiB
C
58 lines
2.3 KiB
C
/* mbed Microcontroller Library
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* Copyright (c) 2015 ARM Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef COMMON_RTC_H
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#define COMMON_RTC_H
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#include "nrf_rtc.h"
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#define RTC_COUNTER_BITS 24u
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// Instance 0 is reserved for SoftDevice.
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// Instance 1 is used as a common one for us_ticker, lp_ticker and (in case
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// of NRF51) as an alternative tick source for RTOS.
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// ["us_ticker.c" uses hard coded addresses of the 'NRF_RTC1->EVENT_COMPARE[1]'
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// register in inline assembly implementations of COMMON_RTC_IRQ_HANDLER,
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// please remember to update those in case of doing changes here]
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#define COMMON_RTC_INSTANCE NRF_RTC1
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#define COMMON_RTC_IRQ_HANDLER RTC1_IRQHandler
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#define US_TICKER_CC_CHANNEL 0
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#define OS_TICK_CC_CHANNEL 1
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#define LP_TICKER_CC_CHANNEL 2
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#define COMMON_RTC_EVENT_COMPARE(channel) \
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CONCAT_2(NRF_RTC_EVENT_COMPARE_, channel)
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#define COMMON_RTC_INT_COMPARE_MASK(channel) \
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CONCAT_3(NRF_RTC_INT_COMPARE, channel, _MASK)
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#define US_TICKER_EVENT COMMON_RTC_EVENT_COMPARE(US_TICKER_CC_CHANNEL)
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#define US_TICKER_INT_MASK COMMON_RTC_INT_COMPARE_MASK(US_TICKER_CC_CHANNEL)
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#define OS_TICK_EVENT COMMON_RTC_EVENT_COMPARE(OS_TICK_CC_CHANNEL)
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#define OS_TICK_INT_MASK COMMON_RTC_INT_COMPARE_MASK(OS_TICK_CC_CHANNEL)
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#define LP_TICKER_EVENT COMMON_RTC_EVENT_COMPARE(LP_TICKER_CC_CHANNEL)
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#define LP_TICKER_INT_MASK COMMON_RTC_INT_COMPARE_MASK(LP_TICKER_CC_CHANNEL)
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extern bool m_common_rtc_enabled;
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extern uint32_t volatile m_common_rtc_overflows;
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void common_rtc_init(void);
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uint32_t common_rtc_32bit_ticks_get(void);
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uint64_t common_rtc_64bit_us_get(void);
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void common_rtc_set_interrupt(uint32_t us_timestamp, uint32_t cc_channel,
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uint32_t int_mask);
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#endif // COMMON_RTC_H
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