254 lines
9.6 KiB
C
254 lines
9.6 KiB
C
/*
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* Copyright (c) 2020 - 2021, Nordic Semiconductor ASA
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* All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#define NRF_802154_MODULE_ID NRF_802154_DRV_MODULE_ID_TRX_PPI
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#include "nrf.h"
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#ifdef NRF53_SERIES
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#include "nrf_802154_trx_ppi_api.h"
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#include "nrf_802154_debug_log.h"
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#include "nrf_802154_peripherals.h"
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#include "hal/nrf_dppi.h"
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#include "hal/nrf_egu.h"
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#include "hal/nrf_radio.h"
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#include "hal/nrf_timer.h"
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#define EGU_EVENT NRF_EGU_EVENT_TRIGGERED15
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#define EGU_TASK NRF_EGU_TASK_TRIGGER15
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#define DPPI_CHGRP_RAMP_UP NRF_DPPI_CHANNEL_GROUP0 ///< PPI group used to disable self-disabling PPIs
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#define DPPI_CHGRP_RAMP_UP_DIS_TASK NRF_DPPI_TASK_CHG0_DIS ///< PPI task used to disable self-disabling PPIs
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#define PPI_DISABLED_EGU NRF_802154_DPPI_RADIO_DISABLED
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#define PPI_EGU_RAMP_UP NRF_802154_DPPI_EGU_TO_RADIO_RAMP_UP
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#define PPI_TIMER_TX_ACK NRF_802154_DPPI_TIMER_COMPARE_TO_RADIO_TXEN
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#define PPI_RADIO_SYNC_EGU_SYNC NRF_802154_DPPI_RADIO_SYNC_TO_EGU_SYNC
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void nrf_802154_trx_ppi_for_enable(void)
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{
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nrf_radio_publish_set(NRF_RADIO, NRF_RADIO_EVENT_DISABLED, PPI_DISABLED_EGU);
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nrf_radio_publish_set(NRF_RADIO, NRF_RADIO_EVENT_READY, NRF_802154_DPPI_RADIO_READY);
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nrf_radio_publish_set(NRF_RADIO, NRF_RADIO_EVENT_ADDRESS, NRF_802154_DPPI_RADIO_ADDRESS);
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nrf_radio_publish_set(NRF_RADIO, NRF_RADIO_EVENT_END, NRF_802154_DPPI_RADIO_END);
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nrf_radio_publish_set(NRF_RADIO, NRF_RADIO_EVENT_PHYEND, NRF_802154_DPPI_RADIO_PHYEND);
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nrf_radio_publish_set(NRF_RADIO, NRF_RADIO_EVENT_CCAIDLE, NRF_802154_DPPI_RADIO_CCAIDLE);
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nrf_dppi_channels_enable(NRF_DPPIC,
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(1UL << PPI_DISABLED_EGU) |
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(1UL << NRF_802154_DPPI_RADIO_READY) |
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(1UL << NRF_802154_DPPI_RADIO_ADDRESS) |
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(1UL << NRF_802154_DPPI_RADIO_END) |
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(1UL << NRF_802154_DPPI_RADIO_PHYEND) |
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(1UL << NRF_802154_DPPI_RADIO_CCAIDLE));
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}
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void nrf_802154_trx_ppi_for_disable(void)
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{
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nrf_dppi_channels_disable(NRF_DPPIC,
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(1UL << PPI_DISABLED_EGU) |
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(1UL << NRF_802154_DPPI_RADIO_READY) |
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(1UL << NRF_802154_DPPI_RADIO_ADDRESS) |
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(1UL << NRF_802154_DPPI_RADIO_END) |
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(1UL << NRF_802154_DPPI_RADIO_PHYEND) |
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(1UL << NRF_802154_DPPI_RADIO_CCAIDLE));
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nrf_radio_publish_clear(NRF_RADIO, NRF_RADIO_EVENT_CCAIDLE);
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nrf_radio_publish_clear(NRF_RADIO, NRF_RADIO_EVENT_PHYEND);
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nrf_radio_publish_clear(NRF_RADIO, NRF_RADIO_EVENT_END);
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nrf_radio_publish_clear(NRF_RADIO, NRF_RADIO_EVENT_ADDRESS);
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nrf_radio_publish_clear(NRF_RADIO, NRF_RADIO_EVENT_READY);
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nrf_radio_publish_clear(NRF_RADIO, NRF_RADIO_EVENT_DISABLED);
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}
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void nrf_802154_trx_ppi_for_ramp_up_set(nrf_radio_task_t ramp_up_task, bool start_timer)
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{
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nrf_802154_log_function_enter(NRF_802154_LOG_VERBOSITY_HIGH);
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// Clr event EGU (needed for nrf_802154_trx_ppi_for_ramp_up_was_triggered)
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nrf_egu_event_clear(NRF_802154_EGU_INSTANCE, EGU_EVENT);
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nrf_dppi_channels_include_in_group(NRF_DPPIC, 1UL << PPI_EGU_RAMP_UP, DPPI_CHGRP_RAMP_UP);
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nrf_egu_publish_set(NRF_802154_EGU_INSTANCE, EGU_EVENT, PPI_EGU_RAMP_UP);
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nrf_radio_subscribe_set(NRF_RADIO, ramp_up_task, PPI_EGU_RAMP_UP);
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nrf_dppi_subscribe_set(NRF_DPPIC, DPPI_CHGRP_RAMP_UP_DIS_TASK, PPI_EGU_RAMP_UP);
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if (start_timer)
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{
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nrf_timer_subscribe_set(NRF_802154_TIMER_INSTANCE, NRF_TIMER_TASK_START, PPI_DISABLED_EGU);
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}
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nrf_egu_subscribe_set(NRF_802154_EGU_INSTANCE, EGU_TASK, PPI_DISABLED_EGU);
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nrf_dppi_channels_enable(NRF_DPPIC,
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(1UL << PPI_EGU_RAMP_UP));
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nrf_802154_log_function_exit(NRF_802154_LOG_VERBOSITY_HIGH);
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}
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void nrf_802154_trx_ppi_for_ramp_up_clear(nrf_radio_task_t ramp_up_task, bool start_timer)
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{
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nrf_802154_log_function_enter(NRF_802154_LOG_VERBOSITY_HIGH);
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nrf_dppi_channels_disable(NRF_DPPIC,
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(1UL << PPI_EGU_RAMP_UP));
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nrf_egu_publish_clear(NRF_802154_EGU_INSTANCE, EGU_EVENT);
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nrf_radio_subscribe_clear(NRF_RADIO, ramp_up_task);
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nrf_dppi_subscribe_clear(NRF_DPPIC, DPPI_CHGRP_RAMP_UP_DIS_TASK);
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nrf_dppi_channels_remove_from_group(NRF_DPPIC, 1UL << PPI_EGU_RAMP_UP, DPPI_CHGRP_RAMP_UP);
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if (start_timer)
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{
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nrf_timer_subscribe_clear(NRF_802154_TIMER_INSTANCE, NRF_TIMER_TASK_START);
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}
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nrf_egu_subscribe_clear(NRF_802154_EGU_INSTANCE, EGU_TASK);
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nrf_802154_log_function_exit(NRF_802154_LOG_VERBOSITY_HIGH);
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}
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void nrf_802154_trx_ppi_for_ramp_up_propagation_delay_wait(void)
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{
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__ASM("nop");
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__ASM("nop");
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__ASM("nop");
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__ASM("nop");
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__ASM("nop");
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__ASM("nop");
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}
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bool nrf_802154_trx_ppi_for_ramp_up_was_triggered(void)
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{
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nrf_802154_log_function_enter(NRF_802154_LOG_VERBOSITY_HIGH);
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if (nrf_radio_state_get(NRF_RADIO) != NRF_RADIO_STATE_DISABLED)
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{
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// If RADIO state is not DISABLED, it means that RADIO is still ramping down or already
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// started ramping up.
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nrf_802154_log_function_exit(NRF_802154_LOG_VERBOSITY_HIGH);
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return true;
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}
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// Wait for PPIs
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nrf_802154_trx_ppi_for_ramp_up_propagation_delay_wait();
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if (nrf_egu_event_check(NRF_802154_EGU_INSTANCE, EGU_EVENT))
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{
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// If EGU event is set, procedure is running.
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nrf_802154_log_function_exit(NRF_802154_LOG_VERBOSITY_HIGH);
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return true;
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}
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nrf_802154_log_function_exit(NRF_802154_LOG_VERBOSITY_HIGH);
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return false;
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}
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void nrf_802154_trx_ppi_for_ack_tx_set(void)
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{
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nrf_802154_log_function_enter(NRF_802154_LOG_VERBOSITY_HIGH);
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// TIMER_COMPARE1 ----> RADIO_TXEN
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nrf_radio_subscribe_set(NRF_RADIO, NRF_RADIO_TASK_TXEN, PPI_TIMER_TX_ACK);
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nrf_timer_publish_set(NRF_802154_TIMER_INSTANCE, NRF_TIMER_EVENT_COMPARE1, PPI_TIMER_TX_ACK);
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nrf_dppi_channels_enable(NRF_DPPIC, (1UL << PPI_TIMER_TX_ACK));
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nrf_802154_log_function_exit(NRF_802154_LOG_VERBOSITY_HIGH);
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}
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void nrf_802154_trx_ppi_for_ack_tx_clear(void)
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{
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nrf_802154_log_function_enter(NRF_802154_LOG_VERBOSITY_HIGH);
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nrf_dppi_channels_disable(NRF_DPPIC, (1UL << PPI_TIMER_TX_ACK));
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nrf_radio_subscribe_clear(NRF_RADIO, NRF_RADIO_TASK_TXEN);
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nrf_timer_publish_clear(NRF_802154_TIMER_INSTANCE, NRF_TIMER_EVENT_COMPARE1);
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nrf_802154_log_function_exit(NRF_802154_LOG_VERBOSITY_HIGH);
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}
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void nrf_802154_trx_ppi_for_fem_set(void)
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{
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nrf_802154_log_function_enter(NRF_802154_LOG_VERBOSITY_HIGH);
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nrf_timer_subscribe_set(NRF_802154_TIMER_INSTANCE, NRF_TIMER_TASK_START, PPI_DISABLED_EGU);
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nrf_802154_log_function_exit(NRF_802154_LOG_VERBOSITY_HIGH);
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}
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void nrf_802154_trx_ppi_for_fem_clear(void)
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{
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nrf_802154_log_function_enter(NRF_802154_LOG_VERBOSITY_HIGH);
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nrf_timer_subscribe_clear(NRF_802154_TIMER_INSTANCE, NRF_TIMER_TASK_START);
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nrf_802154_log_function_exit(NRF_802154_LOG_VERBOSITY_HIGH);
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}
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uint32_t nrf_802154_trx_ppi_group_for_abort_get(void)
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{
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// TODO: Implement it when external event (like coex) can abort radio operation
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return 0;
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}
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#if defined(RADIO_INTENSET_SYNC_Msk)
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void nrf_802154_trx_ppi_for_radio_sync_set(nrf_egu_task_t task)
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{
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nrf_802154_log_function_enter(NRF_802154_LOG_VERBOSITY_HIGH);
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nrf_radio_publish_set(NRF_RADIO, NRF_RADIO_EVENT_SYNC, PPI_RADIO_SYNC_EGU_SYNC);
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nrf_egu_subscribe_set(NRF_802154_EGU_INSTANCE, task, PPI_RADIO_SYNC_EGU_SYNC);
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nrf_dppi_channels_enable(NRF_DPPIC, (1UL << PPI_RADIO_SYNC_EGU_SYNC));
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nrf_802154_log_function_exit(NRF_802154_LOG_VERBOSITY_HIGH);
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}
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void nrf_802154_trx_ppi_for_radio_sync_clear(nrf_egu_task_t task)
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{
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nrf_802154_log_function_enter(NRF_802154_LOG_VERBOSITY_HIGH);
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nrf_dppi_channels_disable(NRF_DPPIC, (1UL << PPI_RADIO_SYNC_EGU_SYNC));
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nrf_radio_publish_clear(NRF_RADIO, NRF_RADIO_EVENT_SYNC);
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nrf_egu_subscribe_clear(NRF_802154_EGU_INSTANCE, task);
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nrf_802154_log_function_exit(NRF_802154_LOG_VERBOSITY_HIGH);
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}
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#endif
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#endif // NRF53_SERIES
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