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drivers: timer: nrf_rtc_timer: Add z_nrf_rtc_timer_capture_task_address_get

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Add function for getting address of RTC capture task.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
This commit is contained in:
Krzysztof Chruscinski 2021-11-09 15:47:59 +01:00 • committed by Carles Cufí
commit ec9a32481b
2 changed files with 30 additions and 1 deletions
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19
drivers/timer/nrf_rtc_timer.c
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2016-2017 Nordic Semiconductor ASA
* Copyright (c) 2016-2021 Nordic Semiconductor ASA
* Copyright (c) 2018 Intel Corporation
*
* SPDX-License-Identifier: Apache-2.0
@ -123,6 +123,23 @@ uint32_t z_nrf_rtc_timer_compare_evt_address_get(int32_t chan)
return nrf_rtc_event_address_get(RTC, nrf_rtc_compare_event_get(chan));
}
uint32_t z_nrf_rtc_timer_capture_task_address_get(int32_t chan)
{
#if defined(RTC_TASKS_CAPTURE_TASKS_CAPTURE_Msk)
__ASSERT_NO_MSG(chan < CHAN_COUNT);
if (chan == 0) {
return 0;
}
nrf_rtc_task_t task = offsetof(NRF_RTC_Type, TASKS_CAPTURE[chan]);
return nrf_rtc_task_address_get(RTC, task);
#else
ARG_UNUSED(chan);
return 0;
#endif
}
static bool compare_int_lock(int32_t chan)
{
atomic_val_t prev = atomic_and(&int_mask, ~BIT(chan));

12
include/drivers/timer/nrf_rtc_timer.h
View file

@ -65,6 +65,18 @@ uint64_t z_nrf_rtc_timer_read(void);
*/
uint32_t z_nrf_rtc_timer_compare_evt_address_get(int32_t chan);
/** @brief Get CAPTURE task register address.
*
* Address can be used for (D)PPI.
*
* @note Not all platforms have CAPTURE task.
*
* @param chan Channel ID between 1 and CONFIG_NRF_RTC_TIMER_USER_CHAN_COUNT.
*
* @return Register address.
*/
uint32_t z_nrf_rtc_timer_capture_task_address_get(int32_t chan);
/** @brief Safely disable compare event interrupt.
*
* Function returns key indicating whether interrupt was already disabled.