281 lines
11 KiB
C
281 lines
11 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_802154_trx_ppi_api.h"
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#include <stdbool.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 "mpsl_fem_protocol_api.h"
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#include "hal/nrf_egu.h"
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#include "hal/nrf_ppi.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 PPI_CHGRP_RAMP_UP NRF_802154_PPI_CORE_GROUP ///< PPI group used to disable self-disabling PPIs
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#define PPI_CHGRP_RAMP_UP_DIS_TASK NRF_PPI_TASK_CHG0_DIS ///< PPI task used to disable self-disabling PPIs
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#define PPI_CHGRP_ABORT NRF_802154_PPI_ABORT_GROUP ///< PPI group used to disable PPIs when async event aborting radio operation is propagated through the system
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#define PPI_DISABLED_EGU NRF_802154_PPI_RADIO_DISABLED_TO_EGU ///< PPI that connects RADIO DISABLED event with EGU task
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#define PPI_EGU_RAMP_UP NRF_802154_PPI_EGU_TO_RADIO_RAMP_UP ///< PPI that connects EGU event with RADIO TXEN or RXEN task
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#define PPI_EGU_TIMER_START NRF_802154_PPI_EGU_TO_TIMER_START ///< PPI that connects EGU event with TIMER START task
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#define PPI_TIMER_TX_ACK NRF_802154_PPI_TIMER_COMPARE_TO_RADIO_TXEN ///< PPI that connects TIMER COMPARE event with RADIO TXEN task
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#define PPI_RADIO_SYNC_EGU_SYNC NRF_802154_PPI_RADIO_SYNC_TO_EGU_SYNC ///< PPI that connects RADIO SYNC event with EGU task for SYNC channel
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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_ppi_channel_and_fork_endpoint_setup(NRF_PPI, PPI_EGU_RAMP_UP,
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nrf_egu_event_address_get(
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NRF_802154_EGU_INSTANCE,
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EGU_EVENT),
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nrf_radio_task_address_get(NRF_RADIO, ramp_up_task),
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nrf_ppi_task_address_get(NRF_PPI,
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PPI_CHGRP_RAMP_UP_DIS_TASK));
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if (start_timer)
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{
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nrf_ppi_channel_endpoint_setup(NRF_PPI, PPI_EGU_TIMER_START,
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nrf_egu_event_address_get(NRF_802154_EGU_INSTANCE,
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EGU_EVENT),
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nrf_timer_task_address_get(NRF_802154_TIMER_INSTANCE,
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NRF_TIMER_TASK_START));
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}
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nrf_ppi_channel_endpoint_setup(NRF_PPI,
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PPI_DISABLED_EGU,
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nrf_radio_event_address_get(NRF_RADIO, NRF_RADIO_EVENT_DISABLED),
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nrf_egu_task_address_get(NRF_802154_EGU_INSTANCE, EGU_TASK));
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nrf_ppi_channel_include_in_group(NRF_PPI, PPI_EGU_RAMP_UP, PPI_CHGRP_RAMP_UP);
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uint32_t ppi_mask = (1UL << PPI_EGU_RAMP_UP) |
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(1UL << PPI_DISABLED_EGU);
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if (start_timer)
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{
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ppi_mask |= (1UL << PPI_EGU_TIMER_START);
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}
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nrf_ppi_channels_enable(NRF_PPI, ppi_mask);
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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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(void)ramp_up_task;
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nrf_802154_log_function_enter(NRF_802154_LOG_VERBOSITY_HIGH);
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uint32_t ppi_mask = (1UL << PPI_EGU_RAMP_UP) |
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(1UL << PPI_DISABLED_EGU);
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if (start_timer)
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{
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ppi_mask |= (1UL << PPI_EGU_TIMER_START);
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}
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nrf_ppi_channels_disable(NRF_PPI, ppi_mask);
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nrf_ppi_channel_and_fork_endpoint_setup(NRF_PPI, PPI_EGU_RAMP_UP, 0, 0, 0);
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nrf_ppi_channel_endpoint_setup(NRF_PPI, PPI_DISABLED_EGU, 0, 0);
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if (start_timer)
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{
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nrf_ppi_channel_endpoint_setup(NRF_PPI, PPI_EGU_TIMER_START, 0, 0);
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}
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nrf_ppi_channel_remove_from_group(NRF_PPI, PPI_EGU_RAMP_UP, PPI_CHGRP_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_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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nrf_ppi_channel_endpoint_setup(NRF_PPI,
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PPI_TIMER_TX_ACK,
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nrf_timer_event_address_get(NRF_802154_TIMER_INSTANCE,
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NRF_TIMER_EVENT_COMPARE1),
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nrf_radio_task_address_get(NRF_RADIO,
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NRF_RADIO_TASK_TXEN));
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nrf_ppi_channel_enable(NRF_PPI, 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_ppi_channel_disable(NRF_PPI, PPI_TIMER_TX_ACK);
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nrf_ppi_channel_endpoint_setup(NRF_PPI, PPI_TIMER_TX_ACK, 0, 0);
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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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uint32_t event_addr = nrf_egu_event_address_get(NRF_802154_EGU_INSTANCE,
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EGU_EVENT);
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uint32_t task_addr = nrf_timer_task_address_get(NRF_802154_TIMER_INSTANCE,
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NRF_TIMER_TASK_START);
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nrf_ppi_channel_endpoint_setup(NRF_PPI, PPI_EGU_TIMER_START, event_addr, task_addr);
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nrf_ppi_channel_enable(NRF_PPI, PPI_EGU_TIMER_START);
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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_ppi_channel_disable(NRF_PPI, PPI_EGU_TIMER_START);
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nrf_ppi_channel_endpoint_setup(NRF_PPI, PPI_EGU_TIMER_START, 0, 0);
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nrf_802154_log_function_exit(NRF_802154_LOG_VERBOSITY_HIGH);
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}
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bool nrf_802154_trx_ppi_for_fem_powerdown_set(NRF_TIMER_Type * p_instance,
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uint32_t compare_channel)
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{
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nrf_802154_log_function_enter(NRF_802154_LOG_VERBOSITY_HIGH);
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// PPI_EGU_TIMER_START is reused here on purpose, to save resources,
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// as fem powerdown cannot be scheduled simultaneously with fem ramp-up.
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bool result = mpsl_fem_prepare_powerdown(p_instance,
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compare_channel,
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PPI_EGU_TIMER_START,
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nrf_radio_event_address_get(NRF_RADIO,
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NRF_RADIO_EVENT_DISABLED));
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nrf_802154_log_function_exit(NRF_802154_LOG_VERBOSITY_HIGH);
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return result;
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}
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void nrf_802154_trx_ppi_for_fem_powerdown_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_ppi_channel_disable(NRF_PPI, PPI_EGU_TIMER_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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return (uint32_t)PPI_CHGRP_ABORT;
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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_ppi_channel_endpoint_setup(NRF_PPI,
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PPI_RADIO_SYNC_EGU_SYNC,
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nrf_radio_event_address_get(NRF_RADIO, NRF_RADIO_EVENT_SYNC),
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nrf_egu_task_address_get(NRF_802154_EGU_INSTANCE, task));
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nrf_ppi_channel_enable(NRF_PPI, 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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(void)task;
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nrf_802154_log_function_enter(NRF_802154_LOG_VERBOSITY_HIGH);
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nrf_ppi_channel_disable(NRF_PPI, PPI_RADIO_SYNC_EGU_SYNC);
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nrf_ppi_channel_endpoint_setup(NRF_PPI, PPI_RADIO_SYNC_EGU_SYNC, 0, 0);
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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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