150 lines
5.3 KiB
C
150 lines
5.3 KiB
C
/****************************************************************************
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* arch/arm/src/nrf52/nrf52_ppi.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. 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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <assert.h>
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#include "arm_internal.h"
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#include "chip.h"
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#include "nrf52_ppi.h"
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#include "hardware/nrf52_ppi.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Private Types
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****************************************************************************/
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nrf52_ppi_channel_enable
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****************************************************************************/
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void nrf52_ppi_channel_enable(uint8_t ch, bool enable)
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{
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DEBUGASSERT(ch < NRF52_PPI_NUM_CHANNELS);
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if (enable)
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{
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DEBUGASSERT(!(getreg32(NRF52_PPI_CHENSET) & PPI_CHEN_CH(ch)));
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putreg32(PPI_CHEN_CH(ch), NRF52_PPI_CHENSET);
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}
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else
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{
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DEBUGASSERT(getreg32(NRF52_PPI_CHENSET) & PPI_CHEN_CH(ch));
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putreg32(PPI_CHEN_CH(ch), NRF52_PPI_CHENCLR);
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}
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}
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/****************************************************************************
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* Name: nrf52_ppi_set_event_ep
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****************************************************************************/
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void nrf52_ppi_set_event_ep(uint8_t ch, uint32_t event_reg)
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{
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DEBUGASSERT(ch < NRF52_PPI_NUM_CONFIGURABLE_CHANNELS);
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putreg32(event_reg, NRF52_PPI_CHEEP(ch));
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}
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/****************************************************************************
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* Name: nrf52_ppi_set_task_ep
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****************************************************************************/
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void nrf52_ppi_set_task_ep(uint8_t ch, uint32_t task_reg)
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{
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DEBUGASSERT(ch < NRF52_PPI_NUM_CONFIGURABLE_CHANNELS);
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putreg32(task_reg, NRF52_PPI_CHTEP(ch));
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}
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/****************************************************************************
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* Name: nrf52_ppi_set_task2_ep
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****************************************************************************/
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void nrf52_ppi_set_task2_ep(uint8_t ch, uint32_t task_reg)
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{
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DEBUGASSERT(ch < NRF52_PPI_NUM_CHANNELS);
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putreg32(task_reg, NRF52_PPI_FORKTEP(ch));
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}
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/****************************************************************************
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* Name: nrf52_ppi_grp_channel_enable
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****************************************************************************/
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void nrf52_ppi_grp_channel_enable(uint8_t group, uint8_t ch, bool enable)
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{
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DEBUGASSERT(group < NRF52_PPI_NUM_GROUPS);
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DEBUGASSERT(ch < NRF52_PPI_NUM_CHANNELS);
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modifyreg32(NRF52_PPI_CHG(group), (enable ? 0 : PPI_CHEN_CH(ch)),
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(enable ? PPI_CHEN_CH(ch) : 0));
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}
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/****************************************************************************
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* Name: nrf52_ppi_grp_clear
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****************************************************************************/
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void nrf52_ppi_grp_clear(uint8_t group)
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{
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DEBUGASSERT(group < NRF52_PPI_NUM_GROUPS);
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putreg32(0, NRF52_PPI_CHG(group));
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}
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/****************************************************************************
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* Name: nrf52_ppi_grp_enable
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****************************************************************************/
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void nrf52_ppi_grp_enable(uint8_t group, bool enable)
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{
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DEBUGASSERT(group < NRF52_PPI_NUM_GROUPS);
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putreg32(1, (enable ? NRF52_PPI_TASK_CHGEN(group) :
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NRF52_PPI_TASK_CHGDIS(group)));
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}
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